diff options
| author | Alexander Lantsev <aunsane@gmail.com> | 2016-02-16 11:29:23 +0000 |
|---|---|---|
| committer | Alexander Lantsev <aunsane@gmail.com> | 2016-02-16 11:29:23 +0000 |
| commit | 34a2e860efda4d585503202b6019f9deec1acf7d (patch) | |
| tree | 09fa23baee36f7ec67925b0248ce6206045bd7f7 /plugins/MirLua/Modules | |
| parent | 84921222ad2369bfa4b88c2f4d8b63d28cbcafe6 (diff) | |
git-svn-id: http://svn.miranda-ng.org/main/trunk@16284 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/MirLua/Modules')
32 files changed, 22464 insertions, 0 deletions
diff --git a/plugins/MirLua/Modules/luaffi/luaffi.vcxproj b/plugins/MirLua/Modules/luaffi/luaffi.vcxproj new file mode 100644 index 0000000000..f1ed45bbbd --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/luaffi.vcxproj @@ -0,0 +1,33 @@ +<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <ProjectName>luaffi</ProjectName>
+ <ProjectGuid>{817D2806-9EC5-4607-A404-F031C98A1872}</ProjectGuid>
+ </PropertyGroup>
+ <ImportGroup Label="PropertySheets">
+ <Import Project="$(ProjectDir)..\module.props" />
+ </ImportGroup>
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+ <ClCompile>
+ <PrecompiledHeaderFile>ffi.h</PrecompiledHeaderFile>
+ </ClCompile>
+ </ItemDefinitionGroup>
+</Project>
\ No newline at end of file diff --git a/plugins/MirLua/Modules/luaffi/src/Makefile b/plugins/MirLua/Modules/luaffi/src/Makefile new file mode 100644 index 0000000000..8477140a05 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/Makefile @@ -0,0 +1,54 @@ +.PHONY: all clean test
+
+PKG_CONFIG=pkg-config
+LUA=lua
+
+LUA_CFLAGS=`$(PKG_CONFIG) --cflags lua5.2 2>/dev/null || $(PKG_CONFIG) --cflags lua`
+SOCFLAGS=-fPIC
+SOCC=$(CC) -shared $(SOCFLAGS)
+CFLAGS=-fPIC -g -Wall -Werror $(LUA_CFLAGS) -fvisibility=hidden -Wno-unused-function --std=gnu99
+
+MODNAME=ffi
+MODSO=$(MODNAME).so
+
+all:
+ if [ `uname` = "Darwin" ]; then $(MAKE) macosx; else $(MAKE) posix; fi
+
+test:
+ if [ `uname` = "Darwin" ]; then $(MAKE) test_macosx; else $(MAKE) test_posix; fi
+
+macosx:
+ $(MAKE) posix "SOCC=MACOSX_DEPLOYMENT_TARGET=10.3 $(CC) -dynamiclib -single_module -undefined dynamic_lookup $(SOCFLAGS)"
+
+test_macosx:
+ $(MAKE) test_posix "SOCC=MACOSX_DEPLOYMENT_TARGET=10.3 $(CC) -dynamiclib -single_module -undefined dynamic_lookup $(SOCFLAGS)"
+
+posix: $(MODSO) test_cdecl.so
+
+clean:
+ rm -f *.o *.so call_*.h
+
+call_x86.h: call_x86.dasc dynasm/*.lua
+ $(LUA) dynasm/dynasm.lua -LN -o $@ $<
+
+call_x64.h: call_x86.dasc dynasm/*.lua
+ $(LUA) dynasm/dynasm.lua -D X64 -LN -o $@ $<
+
+call_x64win.h: call_x86.dasc dynasm/*.lua
+ $(LUA) dynasm/dynasm.lua -D X64 -D X64WIN -LN -o $@ $<
+
+%.o: %.c *.h dynasm/*.h call_x86.h call_x64.h call_x64win.h
+ $(CC) $(CFLAGS) -o $@ -c $<
+
+$(MODSO): ffi.o ctype.o parser.o call.o
+ $(SOCC) $^ -o $@
+
+test_cdecl.so: test.o
+ $(SOCC) $^ -o $@
+
+test_posix: test_cdecl.so $(MODSO)
+ LD_LIBRARY_PATH=./ $(LUA) test.lua
+
+
+
+
diff --git a/plugins/MirLua/Modules/luaffi/src/call.c b/plugins/MirLua/Modules/luaffi/src/call.c new file mode 100644 index 0000000000..aff5b8ce38 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/call.c @@ -0,0 +1,272 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+#include "ffi.h"
+
+static cfunction compile(Dst_DECL, lua_State* L, cfunction func, int ref);
+
+static void* reserve_code(struct jit* jit, lua_State* L, size_t sz);
+static void commit_code(struct jit* jit, void* p, size_t sz);
+
+static void push_int(lua_State* L, int val)
+{ lua_pushnumber(L, val); }
+
+static void push_uint(lua_State* L, unsigned int val)
+{ lua_pushnumber(L, val); }
+
+static void push_float(lua_State* L, float val)
+{ lua_pushnumber(L, val); }
+
+static void _remove(lua_State* L, int idx)
+{ lua_remove(L, idx); }
+
+#ifndef _WIN32
+static int GetLastError(void)
+{ return errno; }
+static void SetLastError(int err)
+{ errno = err; }
+#endif
+
+#ifdef NDEBUG
+#define shred(a,b,c)
+#else
+#define shred(p,s,e) memset((uint8_t*)(p)+(s),0xCC,(e)-(s))
+#endif
+
+
+#ifdef _WIN64
+#include "dynasm/dasm_x86.h"
+#include "call_x64win.h"
+#elif defined __amd64__
+#include "dynasm/dasm_x86.h"
+#include "call_x64.h"
+#elif defined __arm__ || defined __arm || defined __ARM__ || defined __ARM || defined ARM || defined _ARM_ || defined ARMV4I || defined _M_ARM
+#include "dynasm/dasm_arm.h"
+#include "call_arm.h"
+#else
+#include "dynasm/dasm_x86.h"
+#include "call_x86.h"
+#endif
+
+struct jit_head {
+ size_t size;
+ int ref;
+ uint8_t jump[JUMP_SIZE];
+};
+
+#define LINKTABLE_MAX_SIZE (sizeof(extnames) / sizeof(extnames[0]) * (JUMP_SIZE))
+
+static cfunction compile(struct jit* jit, lua_State* L, cfunction func, int ref)
+{
+ struct jit_head* code;
+ size_t codesz;
+ int err;
+
+ dasm_checkstep(jit, -1);
+ if ((err = dasm_link(jit, &codesz)) != 0) {
+ char buf[32];
+ sprintf(buf, "%x", err);
+ luaL_error(L, "dasm_link error %s", buf);
+ }
+
+ codesz += sizeof(struct jit_head);
+ code = (struct jit_head*) reserve_code(jit, L, codesz);
+ code->ref = ref;
+ code->size = codesz;
+ compile_extern_jump(jit, L, func, code->jump);
+
+ if ((err = dasm_encode(jit, code+1)) != 0) {
+ char buf[32];
+ sprintf(buf, "%x", err);
+ commit_code(jit, code, 0);
+ luaL_error(L, "dasm_encode error %s", buf);
+ }
+
+ commit_code(jit, code, codesz);
+ return (cfunction) (code+1);
+}
+
+typedef uint8_t jump_t[JUMP_SIZE];
+
+int get_extern(struct jit* jit, uint8_t* addr, int idx, int type)
+{
+ struct page* page = jit->pages[jit->pagenum-1];
+ jump_t* jumps = (jump_t*) (page+1);
+ struct jit_head* h = (struct jit_head*) ((uint8_t*) page + page->off);
+ uint8_t* jmp;
+ ptrdiff_t off;
+
+ if (idx == jit->function_extern) {
+ jmp = h->jump;
+ } else {
+ jmp = jumps[idx];
+ }
+
+ /* compensate for room taken up for the offset so that we can work rip
+ * relative */
+ addr += BRANCH_OFF;
+
+ /* see if we can fit the offset in the branch displacement, if not use the
+ * jump instruction */
+ off = *(uint8_t**) jmp - addr;
+
+ if (MIN_BRANCH <= off && off <= MAX_BRANCH) {
+ return (int32_t) off;
+ } else {
+ return (int32_t)(jmp + sizeof(uint8_t*) - addr);
+ }
+}
+
+static void* reserve_code(struct jit* jit, lua_State* L, size_t sz)
+{
+ struct page* page;
+ size_t off = (jit->pagenum > 0) ? jit->pages[jit->pagenum-1]->off : 0;
+ size_t size = (jit->pagenum > 0) ? jit->pages[jit->pagenum-1]->size : 0;
+
+ if (off + sz >= size) {
+ int i;
+ uint8_t* pdata;
+ cfunction func;
+
+ /* need to create a new page */
+ jit->pages = (struct page**) realloc(jit->pages, (++jit->pagenum) * sizeof(jit->pages[0]));
+
+ size = ALIGN_UP(sz + LINKTABLE_MAX_SIZE + sizeof(struct page), jit->align_page_size);
+
+ page = (struct page*) AllocPage(size);
+ jit->pages[jit->pagenum-1] = page;
+ pdata = (uint8_t*) page;
+ page->size = size;
+ page->off = sizeof(struct page);
+
+ lua_newtable(L);
+
+#define ADDFUNC(DLL, NAME) \
+ lua_pushliteral(L, #NAME); \
+ func = DLL ? (cfunction) GetProcAddressA(DLL, #NAME) : NULL; \
+ func = func ? func : (cfunction) &NAME; \
+ lua_pushcfunction(L, (lua_CFunction) func); \
+ lua_rawset(L, -3)
+
+ ADDFUNC(NULL, check_double);
+ ADDFUNC(NULL, check_float);
+ ADDFUNC(NULL, check_uint64);
+ ADDFUNC(NULL, check_int64);
+ ADDFUNC(NULL, check_int32);
+ ADDFUNC(NULL, check_uint32);
+ ADDFUNC(NULL, check_uintptr);
+ ADDFUNC(NULL, check_enum);
+ ADDFUNC(NULL, check_typed_pointer);
+ ADDFUNC(NULL, check_typed_cfunction);
+ ADDFUNC(NULL, check_complex_double);
+ ADDFUNC(NULL, check_complex_float);
+ ADDFUNC(NULL, unpack_varargs_stack);
+ ADDFUNC(NULL, unpack_varargs_stack_skip);
+ ADDFUNC(NULL, unpack_varargs_reg);
+ ADDFUNC(NULL, unpack_varargs_float);
+ ADDFUNC(NULL, unpack_varargs_int);
+ ADDFUNC(NULL, push_cdata);
+ ADDFUNC(NULL, push_int);
+ ADDFUNC(NULL, push_uint);
+ ADDFUNC(NULL, push_float);
+ ADDFUNC(jit->kernel32_dll, SetLastError);
+ ADDFUNC(jit->kernel32_dll, GetLastError);
+ ADDFUNC(jit->lua_dll, luaL_error);
+ ADDFUNC(jit->lua_dll, lua_pushnumber);
+ ADDFUNC(jit->lua_dll, lua_pushboolean);
+ ADDFUNC(jit->lua_dll, lua_gettop);
+ ADDFUNC(jit->lua_dll, lua_rawgeti);
+ ADDFUNC(jit->lua_dll, lua_pushnil);
+ ADDFUNC(jit->lua_dll, lua_callk);
+ ADDFUNC(jit->lua_dll, lua_settop);
+ ADDFUNC(jit->lua_dll, _remove);
+#undef ADDFUNC
+
+ for (i = 0; extnames[i] != NULL; i++) {
+
+ if (strcmp(extnames[i], "FUNCTION") == 0) {
+ shred(pdata + page->off, 0, JUMP_SIZE);
+ jit->function_extern = i;
+
+ } else {
+ lua_getfield(L, -1, extnames[i]);
+ func = (cfunction) lua_tocfunction(L, -1);
+
+ if (func == NULL) {
+ luaL_error(L, "internal error: missing link for %s", extnames[i]);
+ }
+
+ compile_extern_jump(jit, L, func, pdata + page->off);
+ lua_pop(L, 1);
+ }
+
+ page->off += JUMP_SIZE;
+ }
+
+ page->freed = page->off;
+ lua_pop(L, 1);
+
+ } else {
+ page = jit->pages[jit->pagenum-1];
+ EnableWrite(page, page->size);
+ }
+
+ return (uint8_t*) page + page->off;
+}
+
+static void commit_code(struct jit* jit, void* code, size_t sz)
+{
+ struct page* page = jit->pages[jit->pagenum-1];
+ page->off += sz;
+ EnableExecute(page, page->size);
+ {
+#if 0
+ FILE* out = fopen("\\Hard Disk\\out.bin", "wb");
+ fwrite(page, page->off, 1, out);
+ fclose(out);
+#endif
+ }
+}
+
+/* push_func_ref pushes a copy of the upval table embedded in the compiled
+ * function func.
+ */
+void push_func_ref(lua_State* L, cfunction func)
+{
+ struct jit_head* h = ((struct jit_head*) func) - 1;
+ lua_rawgeti(L, LUA_REGISTRYINDEX, h->ref);
+}
+
+void free_code(struct jit* jit, lua_State* L, cfunction func)
+{
+ size_t i;
+ struct jit_head* h = ((struct jit_head*) func) - 1;
+ for (i = 0; i < jit->pagenum; i++) {
+ struct page* p = jit->pages[i];
+
+ if ((uint8_t*) h < (uint8_t*) p || (uint8_t*) p + p->size <= (uint8_t*) h) {
+ continue;
+ }
+
+ luaL_unref(L, LUA_REGISTRYINDEX, h->ref);
+
+ EnableWrite(p, p->size);
+ p->freed += h->size;
+
+ shred(h, 0, h->size);
+
+ if (p->freed < p->off) {
+ EnableExecute(p, p->size);
+ return;
+ }
+
+ FreePage(p, p->size);
+ memmove(&jit->pages[i], &jit->pages[i+1], (jit->pagenum - (i+1)) * sizeof(jit->pages[0]));
+ jit->pagenum--;
+ return;
+ }
+
+ assert(!"couldn't find func in the jit pages");
+}
+
+
diff --git a/plugins/MirLua/Modules/luaffi/src/call_arm.dasc b/plugins/MirLua/Modules/luaffi/src/call_arm.dasc new file mode 100644 index 0000000000..1f2de1c029 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/call_arm.dasc @@ -0,0 +1,639 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+|.arch arm
+|.actionlist build_actionlist
+|.globalnames globnames
+|.externnames extnames
+
+#define JUMP_SIZE 8
+#define MIN_BRANCH ((INT32_MIN) >> 8)
+#define MAX_BRANCH ((INT32_MAX) >> 8)
+#define BRANCH_OFF 4
+
+static void compile_extern_jump(struct jit* jit, lua_State* L, function_t func, uint8_t* code)
+{
+ /* The jump code is the function pointer followed by a stub to call the
+ * function pointer. The stub exists so we can jump to functions with an
+ * offset greater than 32MB.
+ *
+ * Note we have to manually set this up since there are commands buffered
+ * in the jit state.
+ */
+ *(function_t*) code = func;
+ /* ldr pc, [pc - 12] */
+ *(uint32_t*) &code[4] = 0xE51FF00CU;
+}
+
+|.define TOP, r4
+|.define L_ARG, r5
+|.define DATA, r6
+|.define DATA2, r7
+
+|.macro load32, reg, val
+| ldr reg, [pc]
+| b >5
+|.long val
+|5:
+|.endmacro
+
+|.macro lcall, func
+| mov r0, L_ARG
+| bl func
+|.endmacro
+
+void compile_globals(struct jit* jit, lua_State* L)
+{
+ (void) jit;
+}
+
+function_t push_callback(struct jit* jit, lua_State* L, int fidx, int ct_usr, const struct ctype* ct)
+{
+ struct jit* Dst = jit;
+ int i, nargs, num_upvals, ref;
+ const struct ctype* mt;
+
+ int top = lua_gettop(L);
+
+ ct_usr = lua_absindex(L, ct_usr);
+ fidx = lua_absindex(L, fidx);
+ nargs = (int) lua_rawlen(L, ct_usr);
+
+ dasm_setup(Dst, build_actionlist);
+
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ ref = luaL_ref(L, LUA_REGISTRYINDEX);
+ num_upvals = 0;
+
+ if (ct->has_var_arg) {
+ luaL_error(L, "can't create callbacks with varargs");
+ }
+
+ /* prolog and get the upval table */
+ | mov r12, sp
+ | push {r0, r1, r2, r3} // do this first so that r0-r3 is right before stack bound arguments
+ | push {TOP, L_ARG, DATA, DATA2, r12, lr}
+ | sub DATA, r12, #16 // points to r0 on stack
+ | ldr L_ARG, [pc, #8]
+ | ldr r2, [pc, #8]
+ | ldr r1, [pc, #8]
+ | b >1
+ |.long L, ref, LUA_REGISTRYINDEX
+ |1:
+ | lcall extern lua_rawgeti
+
+ /* get the lua function */
+ lua_pushvalue(L, fidx);
+ lua_rawseti(L, -2, ++num_upvals);
+ | mov r2, #num_upvals
+ | mvn r1, #0 // -1
+ | lcall extern lua_rawgeti
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+
+ | mov r2, #num_upvals-1 // usr value
+ | mvn r1, #i // -i-1, stack is upval table, func, i-1 args
+ | lcall extern lua_rawgeti
+ | load32 r2, mt
+ | mvn r1, #0 // -1
+ | lcall extern push_cdata
+ | ldr r2, [DATA], #4
+ | str r2, [r0]
+ | mvn r1, #1 // -2
+ | lcall extern lua_remove // remove the usr value
+
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ case UINT64_TYPE:
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ | lcall extern lua_pushnil
+ | load32 r2, mt
+ | mvn r1, #0 // -1
+ | lcall extern push_cdata
+ | ldr r2, [DATA], #4
+ | ldr r3, [DATA], #4
+ | str r2, [r0]
+ | str r3, [r0, #4]
+ | mvn r1, #1 // -2
+ | lcall extern lua_remove // remove the nil usr
+ break;
+
+ case UINTPTR_TYPE:
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ | lcall extern lua_pushnil
+ | load32 r2, mt
+ | mvn r1, #0 // -1
+ | lcall extern push_cdata
+ | ldr r2, [DATA], #4
+ | str r2, [r0]
+ | mvn r1, #1 // -2
+ | lcall extern lua_remove // remove the nil usr
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | lcall extern lua_pushboolean
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | mov r1, r1, lsl #24
+ | mov r1, r1, asr #24
+ | lcall extern push_int
+ break;
+
+ case UINT8_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | and r1, r1, #0xFF
+ | lcall extern push_uint
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | mov r1, r1, lsl #16
+ | mov r1, r1, asr #16
+ | lcall extern push_int
+ break;
+
+ case UINT16_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | mov r1, r1, lsl #16
+ | mov r1, r1, lsr #16
+ | lcall extern push_uint
+ break;
+
+ case ENUM_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | lcall extern push_int
+ break;
+
+ case UINT32_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | lcall extern push_uint
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ | ldr r1, [DATA], #4
+ | lcall extern push_float
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ | ldmia DATA!, {r1, r2}
+ | lcall extern lua_pushnumber
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback arg type");
+ }
+ }
+ }
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ | mov r3, #0
+ | mov r2, #((mt->pointers || mt->type != VOID_TYPE) ? 1 : 0)
+ | mov r1, #nargs
+ | lcall extern lua_callk
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+
+ | mov r2, #num_upvals-1 // usr value
+ | mvn r1, #1 // -2 stack is (upval table, ret val)
+ | lcall extern lua_rawgeti
+ | load32 r3, mt
+ | mov r2, #0 // -1 - ct_usr
+ | mvn r1, #1 // -2 - val
+ | lcall extern to_typed_pointer
+ | mov DATA, r0
+ | mvn r1, #3 // -4 - remove 3 (upval table, ret val, usr value)
+ | lcall extern lua_settop
+ | mov r0, DATA
+ } else {
+ switch (mt->type) {
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+
+ | mov r2, #num_upvals-1 // usr value
+ | mvn r1, #1 // -2 stack is (upval table, ret val)
+ | lcall extern lua_rawgeti
+ | load32 r3, mt
+ | mvn r2, #0 // -1 - ct_usr
+ | mvn r1, #1 // -2 - val
+ | lcall extern to_enum
+ | mov DATA, r0
+ | mvn r1, #3 // -4 - remove 3 (upval table, ret val, usr value)
+ | lcall extern lua_settop
+ | mov r0, DATA
+ break;
+
+ case VOID_TYPE:
+ | mvn r1, #1 // -2
+ | lcall extern lua_settop
+ lua_pop(L, 1);
+ break;
+
+ case BOOL_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ | mvn r1, #0 // -1
+ | lcall extern to_int32
+ goto single;
+
+ case UINT8_TYPE:
+ case UINT16_TYPE:
+ case UINT32_TYPE:
+ | mvn r1, #0 // -1
+ | lcall extern to_uint32
+ goto single;
+
+ case INT64_TYPE:
+ | mvn r1, #0 // -1
+ | lcall extern to_int64
+ goto dual;
+
+ case UINT64_TYPE:
+ | mvn r1, #0 // -1
+ | lcall extern to_uint64
+ goto dual;
+
+ case UINTPTR_TYPE:
+ | mvn r1, #0 // -1
+ | lcall extern to_uintptr
+ goto single;
+
+ case FLOAT_TYPE:
+ | mvn r1, #0 // -1
+ | lcall extern to_float
+ goto single;
+
+ case DOUBLE_TYPE:
+ | mvn r1, #0 // -1
+ | lcall extern to_double
+ goto dual;
+
+ single:
+ | mov DATA, r0
+ | mvn r1, #2 // -3
+ | lcall extern lua_settop
+ | mov r0, DATA
+ lua_pop(L, 1);
+ break;
+
+ dual:
+ | mov DATA, r0
+ | mov DATA2, r1
+ | mvn r1, #2 // -3
+ | lcall extern lua_settop
+ | mov r0, DATA
+ | mov r1, DATA2
+ lua_pop(L, 1);
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback return type");
+ }
+ }
+
+ | ldmia sp, {TOP, L_ARG, DATA, DATA2, sp, pc}
+
+ lua_pop(L, 1); /* upval table - already in registry */
+ assert(lua_gettop(L) == top);
+
+ {
+ void* p;
+ struct ctype ft;
+ function_t func;
+
+ func = compile(jit, L, NULL, ref);
+
+ ft = *ct;
+ ft.is_jitted = 1;
+ p = push_cdata(L, ct_usr, &ft);
+ *(function_t*) p = func;
+
+ assert(lua_gettop(L) == top + 1);
+
+ return func;
+ }
+}
+
+void push_function(struct jit* jit, lua_State* L, function_t func, int ct_usr, const struct ctype* ct)
+{
+ struct jit* Dst = jit;
+ int i, nargs, num_upvals;
+ const struct ctype* mt;
+ void* p;
+
+ int top = lua_gettop(L);
+
+ ct_usr = lua_absindex(L, ct_usr);
+ nargs = (int) lua_rawlen(L, ct_usr);
+
+ p = push_cdata(L, ct_usr, ct);
+ *(function_t*) p = func;
+ num_upvals = 1;
+
+ dasm_setup(Dst, build_actionlist);
+
+ | mov r12, sp
+ | push {r0}
+ | push {TOP, L_ARG, DATA, DATA2, r11, r12, lr}
+ | sub r11, r12, #4
+ | mov L_ARG, r0
+ | lcall extern lua_gettop
+ | mov TOP, r0
+ | cmp TOP, #nargs
+ | // these should really be in globals - but for some reason dynasm breaks when you do that
+ if (ct->has_var_arg) {
+ | bge >1
+ | load32 r1, "too few arguments"
+ | lcall extern luaL_error
+ |1:
+ } else {
+ | beq >1
+ | load32 r1, "incorrect number of arguments"
+ | lcall extern luaL_error
+ |1:
+ }
+
+ /* reserve enough stack space for all of the arguments (8 bytes per
+ * argument for double and maintains alignment). Add an extra 16 bytes so
+ * that the pop {r0, r1, r2, r3} doesn't clean out our stack frame */
+ | sub sp, sp, TOP, lsl #3
+ | sub sp, sp, #16
+ | mov DATA, sp
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers || mt->type == FUNCTION_PTR_TYPE || mt->type == ENUM_TYPE) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+
+ | ldr r3, [pc, #4]
+ | ldr r2, [pc, #4]
+ | b >1
+ |.long mt, lua_upvalueindex(num_upvals)
+ |1:
+ | mov r1, #i
+ | mov r0, L_ARG
+
+ if (mt->pointers) {
+ | bl extern to_typed_pointer
+ } else if (mt->type == FUNCTION_PTR_TYPE) {
+ | bl extern to_typed_function
+ } else if (mt->type == ENUM_TYPE) {
+ | bl extern to_enum
+ }
+
+ | str r0, [DATA], #4
+
+ } else {
+ lua_pop(L, 1);
+ | mov r1, #i
+
+ switch (mt->type) {
+ case INT8_TYPE:
+ | lcall extern to_int32
+ | mov r0, r0, lsl #24
+ | mov r0, r0, asr #24
+ | str r0, [DATA], #4
+ break;
+
+ case INT16_TYPE:
+ | lcall extern to_int32
+ | mov r0, r0, lsl #16
+ | mov r0, r0, asr #16
+ | str r0, [DATA], #4
+ break;
+
+ case INT32_TYPE:
+ | lcall extern to_int32
+ | str r0, [DATA], #4
+ break;
+
+ case UINT8_TYPE:
+ | lcall extern to_uint32
+ | and r0, r0, #0xFF
+ | str r0, [DATA], #4
+ break;
+
+ case UINT16_TYPE:
+ | lcall extern to_uint32
+ | mov r0, r0, lsl #16
+ | mov r0, r0, lsr #16
+ | str r0, [DATA], #4
+ break;
+
+ case UINT32_TYPE:
+ | lcall extern to_uint32
+ | str r0, [DATA], #4
+ break;
+
+ case INT64_TYPE:
+ | lcall extern to_int64
+ | str r0, [DATA], #4
+ | str r1, [DATA], #4
+ break;
+
+ case UINT64_TYPE:
+ | lcall extern to_uint64
+ | str r0, [DATA], #4
+ | str r1, [DATA], #4
+ break;
+
+ case DOUBLE_TYPE:
+ | lcall extern to_double
+ | str r0, [DATA], #4
+ | str r1, [DATA], #4
+ break;
+
+ case UINTPTR_TYPE:
+ | lcall extern to_uintptr
+ | str r0, [DATA], #4
+ break;
+
+ case FLOAT_TYPE:
+ | lcall extern to_float
+ | str r0, [DATA], #4
+ break;
+
+ default:
+ luaL_error(L, "NYI: call arg type");
+ }
+ }
+ }
+
+ if (ct->has_var_arg) {
+ | mov r3, DATA
+ | mov r2, TOP
+ | mov r1, #nargs+1
+ | lcall extern unpack_varargs_stack
+ }
+
+ | load32 r0, &jit->last_errno
+ | ldr r0, [r0]
+ | bl extern SetLastError
+
+ | pop {r0, r1, r2, r3} // this pop is balanced with the sub sp, #16
+ | bl extern FUNCTION
+
+ |.macro get_errno
+ | bl extern GetLastError
+ | load32 r1, &jit->last_errno
+ | str r0, [r1]
+ |.endmacro
+
+ |.macro return
+ | ldmdb r11, {TOP, L_ARG, DATA, r11, sp, pc}
+ |.endmacro
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ | mov DATA, r0
+ | get_errno
+ | ldr r2, [pc, #4]
+ | ldr r1, [pc, #4]
+ | b >1
+ |.long mt, lua_upvalueindex(num_upvals)
+ |1:
+ | lcall extern push_cdata
+ | str DATA, [r0]
+ | mov r0, #1
+ | return
+
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ case UINT64_TYPE:
+ num_upvals++;
+ | mov DATA, r0
+ | mov DATA2, r1
+ | get_errno
+ | lcall extern lua_pushnil
+ | load32 r2, mt
+ | mvn r1, #0 // -1
+ | lcall extern push_cdata
+ | str DATA, [r0]
+ | str DATA2, [r0, #4]
+ | mov r0, #1
+ | return
+ break;
+
+ case UINTPTR_TYPE:
+ num_upvals++;
+ | mov DATA, r0
+ | get_errno
+ | lcall extern lua_pushnil
+ | load32 r2, mt
+ | mvn r1, #0 // -1
+ | lcall extern push_cdata
+ | str DATA, [r0]
+ | mov r0, #1
+ | return
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ | get_errno
+ | mov r0, #0
+ | return
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ | mov DATA, r0
+ | get_errno
+ | mov r1, DATA
+ | lcall extern lua_pushboolean
+ | mov r0, #1
+ | return
+ break;
+
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ lua_pop(L, 1);
+ | mov DATA, r0
+ | get_errno
+ | mov r1, DATA
+ | lcall extern push_int
+ | mov r0, #1
+ | return
+ break;
+
+ case UINT8_TYPE:
+ case UINT16_TYPE:
+ case UINT32_TYPE:
+ lua_pop(L, 1);
+ | mov DATA, r0
+ | get_errno
+ | mov r1, DATA
+ | lcall extern push_uint
+ | mov r0, #1
+ | return
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ | mov DATA, r0
+ | get_errno
+ | mov r1, DATA
+ | lcall extern push_float
+ | mov r0, #1
+ | return
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ | mov DATA, r0
+ | mov DATA2, r1
+ | get_errno
+ | mov r2, DATA2
+ | mov r1, DATA
+ | lcall extern lua_pushnumber
+ | mov r0, #1
+ | return
+ break;
+
+ default:
+ luaL_error(L, "NYI: call return type");
+ }
+ }
+
+ assert(lua_gettop(L) == top + num_upvals);
+ lua_pushcclosure(L, (lua_CFunction) compile(jit, L, func, LUA_NOREF), num_upvals);
+}
+
diff --git a/plugins/MirLua/Modules/luaffi/src/call_arm.h b/plugins/MirLua/Modules/luaffi/src/call_arm.h new file mode 100644 index 0000000000..a0a1e7aec4 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/call_arm.h @@ -0,0 +1,1033 @@ +/*
+** This file has been pre-processed with DynASM.
+** http://luajit.org/dynasm.html
+** DynASM version 1.3.0, DynASM arm version 1.3.0
+** DO NOT EDIT! The original file is in "call_arm.dasc".
+*/
+
+#if DASM_VERSION != 10300
+#error "Version mismatch between DynASM and included encoding engine"
+#endif
+
+/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+static const unsigned int build_actionlist[571] = {
+0xe1a0c00d,
+0xe92d000f,
+0xe92d50f0,
+0xe24c6010,
+0xe59f5008,
+0xe59f2008,
+0xe59f1008,
+0xea000000,
+0x00050001,
+0x00090000,
+0x00090000,
+0x00090000,
+0x0006000b,
+0xe1a00005,
+0xeb000000,
+0x00030000,
+0x00000000,
+0xe3a02000,
+0x000b0000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030000,
+0x00000000,
+0xe3a02000,
+0x000b0000,
+0xe3e01000,
+0x000b0000,
+0xe1a00005,
+0xeb000000,
+0x00030000,
+0xe59f2000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030001,
+0xe4962004,
+0xe5802000,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x00030002,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x00030003,
+0xe59f2000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030001,
+0xe4962004,
+0xe4963004,
+0xe5802000,
+0xe5803004,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x00030002,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x00030003,
+0xe59f2000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030001,
+0xe4962004,
+0xe5802000,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x00030002,
+0x00000000,
+0xe4961004,
+0xe1a00005,
+0xeb000000,
+0x00030004,
+0x00000000,
+0xe4961004,
+0xe1a01c01,
+0xe1a01c41,
+0xe1a00005,
+0xeb000000,
+0x00030005,
+0x00000000,
+0xe4961004,
+0xe20110ff,
+0xe1a00005,
+0xeb000000,
+0x00030006,
+0x00000000,
+0xe4961004,
+0xe1a01801,
+0xe1a01841,
+0xe1a00005,
+0xeb000000,
+0x00030005,
+0x00000000,
+0xe4961004,
+0xe1a01801,
+0xe1a01821,
+0xe1a00005,
+0xeb000000,
+0x00030006,
+0x00000000,
+0xe4961004,
+0xe1a00005,
+0xeb000000,
+0x00030005,
+0x00000000,
+0xe4961004,
+0xe1a00005,
+0xeb000000,
+0x00030006,
+0x00000000,
+0xe4961004,
+0xe1a00005,
+0xeb000000,
+0x00030007,
+0x00000000,
+0xe8b60006,
+0xe1a00005,
+0xeb000000,
+0x00030008,
+0x00000000,
+0xe3a03000,
+0xe3a02000,
+0x000b0000,
+0xe3a01000,
+0x000b0000,
+0xe1a00005,
+0xeb000000,
+0x00030009,
+0x00000000,
+0xe3a02000,
+0x000b0000,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x00030000,
+0xe59f3000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe3a02000,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x0003000a,
+0xe1a06000,
+0xe3e01003,
+0xe1a00005,
+0xeb000000,
+0x0003000b,
+0xe1a00006,
+0x00000000,
+0xe3a02000,
+0x000b0000,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x00030000,
+0xe59f3000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe3e02000,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x0003000c,
+0xe1a06000,
+0xe3e01003,
+0xe1a00005,
+0xeb000000,
+0x0003000b,
+0xe1a00006,
+0x00000000,
+0xe3e01001,
+0xe1a00005,
+0xeb000000,
+0x0003000b,
+0x00000000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x0003000d,
+0x00000000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x0003000e,
+0x00000000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x0003000f,
+0x00000000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030010,
+0x00000000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030011,
+0x00000000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030012,
+0x00000000,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030013,
+0x00000000,
+0xe1a06000,
+0xe3e01002,
+0xe1a00005,
+0xeb000000,
+0x0003000b,
+0xe1a00006,
+0x00000000,
+0xe1a06000,
+0xe1a07001,
+0xe3e01002,
+0xe1a00005,
+0xeb000000,
+0x0003000b,
+0xe1a00006,
+0xe1a01007,
+0x00000000,
+0xe89da0f0,
+0x00000000,
+0xe1a0c00d,
+0xe92d0001,
+0xe92d58f0,
+0xe24cb004,
+0xe1a05000,
+0xe1a00005,
+0xeb000000,
+0x00030014,
+0xe1a04000,
+0xe3540000,
+0x000b0000,
+0x00000000,
+0xaa000000,
+0x00050001,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe1a00005,
+0xeb000000,
+0x00030015,
+0x0006000b,
+0x00000000,
+0x0a000000,
+0x00050001,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe1a00005,
+0xeb000000,
+0x00030015,
+0x0006000b,
+0x00000000,
+0xe04dd184,
+0xe24dd010,
+0xe1a0600d,
+0x00000000,
+0xe59f3004,
+0xe59f2004,
+0xea000000,
+0x00050001,
+0x00090000,
+0x00090000,
+0x0006000b,
+0xe3a01000,
+0x000b0000,
+0xe1a00005,
+0x00000000,
+0xeb000000,
+0x0003000a,
+0x00000000,
+0xeb000000,
+0x00030016,
+0x00000000,
+0xeb000000,
+0x0003000c,
+0x00000000,
+0xe4860004,
+0x00000000,
+0xe3a01000,
+0x000b0000,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x0003000d,
+0xe1a00c00,
+0xe1a00c40,
+0xe4860004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x0003000d,
+0xe1a00800,
+0xe1a00840,
+0xe4860004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x0003000d,
+0xe4860004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x0003000e,
+0xe20000ff,
+0xe4860004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x0003000e,
+0xe1a00800,
+0xe1a00820,
+0xe4860004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x0003000e,
+0xe4860004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x0003000f,
+0xe4860004,
+0xe4861004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x00030010,
+0xe4860004,
+0xe4861004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x00030013,
+0xe4860004,
+0xe4861004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x00030011,
+0xe4860004,
+0x00000000,
+0xe1a00005,
+0xeb000000,
+0x00030012,
+0xe4860004,
+0x00000000,
+0xe1a03006,
+0xe1a02004,
+0xe3a01000,
+0x000b0000,
+0xe1a00005,
+0xeb000000,
+0x00030017,
+0x00000000,
+0xe59f0000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5900000,
+0xeb000000,
+0x00030018,
+0x00000000,
+0xe8bd000f,
+0xeb000000,
+0x00030019,
+0x00000000,
+0xe1a06000,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe59f2004,
+0xe59f1004,
+0xea000000,
+0x00050001,
+0x00090000,
+0x00090000,
+0x0006000b,
+0xe1a00005,
+0xeb000000,
+0x00030001,
+0xe5806000,
+0xe3a00001,
+0xe91ba870,
+0x00000000,
+0xe1a06000,
+0xe1a07001,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe1a00005,
+0xeb000000,
+0x00030003,
+0xe59f2000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030001,
+0xe5806000,
+0xe5807004,
+0xe3a00001,
+0xe91ba870,
+0x00000000,
+0xe1a06000,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe1a00005,
+0xeb000000,
+0x00030003,
+0xe59f2000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe3e01000,
+0xe1a00005,
+0xeb000000,
+0x00030001,
+0xe5806000,
+0xe3a00001,
+0xe91ba870,
+0x00000000,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe3a00000,
+0xe91ba870,
+0x00000000,
+0xe1a06000,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe1a01006,
+0xe1a00005,
+0xeb000000,
+0x00030004,
+0xe3a00001,
+0xe91ba870,
+0x00000000,
+0xe1a06000,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe1a01006,
+0xe1a00005,
+0xeb000000,
+0x00030005,
+0xe3a00001,
+0xe91ba870,
+0x00000000,
+0xe1a06000,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe1a01006,
+0xe1a00005,
+0xeb000000,
+0x00030006,
+0xe3a00001,
+0xe91ba870,
+0x00000000,
+0xe1a06000,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe1a01006,
+0xe1a00005,
+0xeb000000,
+0x00030007,
+0xe3a00001,
+0xe91ba870,
+0x00000000,
+0xe1a06000,
+0xe1a07001,
+0xeb000000,
+0x0003001a,
+0xe59f1000,
+0xea000000,
+0x00050005,
+0x00090000,
+0x0006000f,
+0xe5810000,
+0xe1a02007,
+0xe1a01006,
+0xe1a00005,
+0xeb000000,
+0x00030008,
+0xe3a00001,
+0xe91ba870,
+0x00000000
+};
+
+static const char *const globnames[] = {
+ (const char *)0
+};
+static const char *const extnames[] = {
+ "lua_rawgeti",
+ "push_cdata",
+ "lua_remove",
+ "lua_pushnil",
+ "lua_pushboolean",
+ "push_int",
+ "push_uint",
+ "push_float",
+ "lua_pushnumber",
+ "lua_callk",
+ "to_typed_pointer",
+ "lua_settop",
+ "to_enum",
+ "to_int32",
+ "to_uint32",
+ "to_int64",
+ "to_uint64",
+ "to_uintptr",
+ "to_float",
+ "to_double",
+ "lua_gettop",
+ "luaL_error",
+ "to_typed_function",
+ "unpack_varargs_stack",
+ "SetLastError",
+ "FUNCTION",
+ "GetLastError",
+ (const char *)0
+};
+
+#define JUMP_SIZE 8
+#define MIN_BRANCH ((INT32_MIN) >> 8)
+#define MAX_BRANCH ((INT32_MAX) >> 8)
+#define BRANCH_OFF 4
+
+static void compile_extern_jump(struct jit* jit, lua_State* L, function_t func, uint8_t* code)
+{
+ /* The jump code is the function pointer followed by a stub to call the
+ * function pointer. The stub exists so we can jump to functions with an
+ * offset greater than 32MB.
+ *
+ * Note we have to manually set this up since there are commands buffered
+ * in the jit state.
+ */
+ *(function_t*) code = func;
+ /* ldr pc, [pc - 12] */
+ *(uint32_t*) &code[4] = 0xE51FF00CU;
+}
+
+
+
+
+void compile_globals(struct jit* jit, lua_State* L)
+{
+ (void) jit;
+}
+
+function_t push_callback(struct jit* jit, lua_State* L, int fidx, int ct_usr, const struct ctype* ct)
+{
+ struct jit* Dst = jit;
+ int i, nargs, num_upvals, ref;
+ const struct ctype* mt;
+
+ int top = lua_gettop(L);
+
+ ct_usr = lua_absindex(L, ct_usr);
+ fidx = lua_absindex(L, fidx);
+ nargs = (int) lua_rawlen(L, ct_usr);
+
+ dasm_setup(Dst, build_actionlist);
+
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ ref = luaL_ref(L, LUA_REGISTRYINDEX);
+ num_upvals = 0;
+
+ if (ct->has_var_arg) {
+ luaL_error(L, "can't create callbacks with varargs");
+ }
+
+ /* prolog and get the upval table */
+ dasm_put(Dst, 0, (uintptr_t)(L), (uintptr_t)(ref), (uintptr_t)(LUA_REGISTRYINDEX));
+
+ /* get the lua function */
+ lua_pushvalue(L, fidx);
+ lua_rawseti(L, -2, ++num_upvals);
+ dasm_put(Dst, 17, num_upvals);
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+
+ dasm_put(Dst, 24, num_upvals-1, i, (uintptr_t)(mt));
+
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ case UINT64_TYPE:
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 47, (uintptr_t)(mt));
+ break;
+
+ case UINTPTR_TYPE:
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 68, (uintptr_t)(mt));
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 87);
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 92);
+ break;
+
+ case UINT8_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 99);
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 105);
+ break;
+
+ case UINT16_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 112);
+ break;
+
+ case ENUM_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 119);
+ break;
+
+ case UINT32_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 124);
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 129);
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 134);
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback arg type");
+ }
+ }
+ }
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ dasm_put(Dst, 139, ((mt->pointers || mt->type != VOID_TYPE) ? 1 : 0), nargs);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+
+ dasm_put(Dst, 148, num_upvals-1, (uintptr_t)(mt));
+ } else {
+ switch (mt->type) {
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+
+ dasm_put(Dst, 171, num_upvals-1, (uintptr_t)(mt));
+ break;
+
+ case VOID_TYPE:
+ dasm_put(Dst, 194);
+ lua_pop(L, 1);
+ break;
+
+ case BOOL_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ dasm_put(Dst, 199);
+ goto single;
+
+ case UINT8_TYPE:
+ case UINT16_TYPE:
+ case UINT32_TYPE:
+ dasm_put(Dst, 204);
+ goto single;
+
+ case INT64_TYPE:
+ dasm_put(Dst, 209);
+ goto dual;
+
+ case UINT64_TYPE:
+ dasm_put(Dst, 214);
+ goto dual;
+
+ case UINTPTR_TYPE:
+ dasm_put(Dst, 219);
+ goto single;
+
+ case FLOAT_TYPE:
+ dasm_put(Dst, 224);
+ goto single;
+
+ case DOUBLE_TYPE:
+ dasm_put(Dst, 229);
+ goto dual;
+
+ single:
+ dasm_put(Dst, 234);
+ lua_pop(L, 1);
+ break;
+
+ dual:
+ dasm_put(Dst, 241);
+ lua_pop(L, 1);
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback return type");
+ }
+ }
+
+ dasm_put(Dst, 250);
+
+ lua_pop(L, 1); /* upval table - already in registry */
+ assert(lua_gettop(L) == top);
+
+ {
+ void* p;
+ struct ctype ft;
+ function_t func;
+
+ func = compile(jit, L, NULL, ref);
+
+ ft = *ct;
+ ft.is_jitted = 1;
+ p = push_cdata(L, ct_usr, &ft);
+ *(function_t*) p = func;
+
+ assert(lua_gettop(L) == top + 1);
+
+ return func;
+ }
+}
+
+void push_function(struct jit* jit, lua_State* L, function_t func, int ct_usr, const struct ctype* ct)
+{
+ struct jit* Dst = jit;
+ int i, nargs, num_upvals;
+ const struct ctype* mt;
+ void* p;
+
+ int top = lua_gettop(L);
+
+ ct_usr = lua_absindex(L, ct_usr);
+ nargs = (int) lua_rawlen(L, ct_usr);
+
+ p = push_cdata(L, ct_usr, ct);
+ *(function_t*) p = func;
+ num_upvals = 1;
+
+ dasm_setup(Dst, build_actionlist);
+
+ dasm_put(Dst, 252, nargs);
+ if (ct->has_var_arg) {
+ dasm_put(Dst, 264, (uintptr_t)("too few arguments"));
+ } else {
+ dasm_put(Dst, 276, (uintptr_t)("incorrect number of arguments"));
+ }
+
+ /* reserve enough stack space for all of the arguments (8 bytes per
+ * argument for double and maintains alignment). Add an extra 16 bytes so
+ * that the pop {r0, r1, r2, r3} doesn't clean out our stack frame */
+ dasm_put(Dst, 288);
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers || mt->type == FUNCTION_PTR_TYPE || mt->type == ENUM_TYPE) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+
+ dasm_put(Dst, 292, (uintptr_t)(mt), (uintptr_t)(lua_upvalueindex(num_upvals)), i);
+
+ if (mt->pointers) {
+ dasm_put(Dst, 303);
+ } else if (mt->type == FUNCTION_PTR_TYPE) {
+ dasm_put(Dst, 306);
+ } else if (mt->type == ENUM_TYPE) {
+ dasm_put(Dst, 309);
+ }
+
+ dasm_put(Dst, 312);
+
+ } else {
+ lua_pop(L, 1);
+ dasm_put(Dst, 314, i);
+
+ switch (mt->type) {
+ case INT8_TYPE:
+ dasm_put(Dst, 317);
+ break;
+
+ case INT16_TYPE:
+ dasm_put(Dst, 324);
+ break;
+
+ case INT32_TYPE:
+ dasm_put(Dst, 331);
+ break;
+
+ case UINT8_TYPE:
+ dasm_put(Dst, 336);
+ break;
+
+ case UINT16_TYPE:
+ dasm_put(Dst, 342);
+ break;
+
+ case UINT32_TYPE:
+ dasm_put(Dst, 349);
+ break;
+
+ case INT64_TYPE:
+ dasm_put(Dst, 354);
+ break;
+
+ case UINT64_TYPE:
+ dasm_put(Dst, 360);
+ break;
+
+ case DOUBLE_TYPE:
+ dasm_put(Dst, 366);
+ break;
+
+ case UINTPTR_TYPE:
+ dasm_put(Dst, 372);
+ break;
+
+ case FLOAT_TYPE:
+ dasm_put(Dst, 377);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call arg type");
+ }
+ }
+ }
+
+ if (ct->has_var_arg) {
+ dasm_put(Dst, 382, nargs+1);
+ }
+
+ dasm_put(Dst, 390, (uintptr_t)(&jit->last_errno));
+
+ dasm_put(Dst, 399);
+
+
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 403, (uintptr_t)(&jit->last_errno), (uintptr_t)(mt), (uintptr_t)(lua_upvalueindex(num_upvals)));
+
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ case UINT64_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 426, (uintptr_t)(&jit->last_errno), (uintptr_t)(mt));
+ break;
+
+ case UINTPTR_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 453, (uintptr_t)(&jit->last_errno), (uintptr_t)(mt));
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 478, (uintptr_t)(&jit->last_errno));
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 489, (uintptr_t)(&jit->last_errno));
+ break;
+
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 505, (uintptr_t)(&jit->last_errno));
+ break;
+
+ case UINT8_TYPE:
+ case UINT16_TYPE:
+ case UINT32_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 521, (uintptr_t)(&jit->last_errno));
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 537, (uintptr_t)(&jit->last_errno));
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 553, (uintptr_t)(&jit->last_errno));
+ break;
+
+ default:
+ luaL_error(L, "NYI: call return type");
+ }
+ }
+
+ assert(lua_gettop(L) == top + num_upvals);
+ lua_pushcclosure(L, (lua_CFunction) compile(jit, L, func, LUA_NOREF), num_upvals);
+}
+
diff --git a/plugins/MirLua/Modules/luaffi/src/call_x64.h b/plugins/MirLua/Modules/luaffi/src/call_x64.h new file mode 100644 index 0000000000..3fa8ab7f91 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/call_x64.h @@ -0,0 +1,1204 @@ +/*
+** This file has been pre-processed with DynASM.
+** http://luajit.org/dynasm.html
+** DynASM version 1.3.0, DynASM x64 version 1.3.0
+** DO NOT EDIT! The original file is in "call_x86.dasc".
+*/
+
+#if DASM_VERSION != 10300
+#error "Version mismatch between DynASM and included encoding engine"
+#endif
+
+/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+
+static const unsigned char build_actionlist[2022] = {
+ 248,10,184,1,0.0,0.0,0.0,76,139,109,252,240,76,139,101,252,248,72,137,252,
+ 236,93,195,255,248,11,232,251,1,0,72,185,237,237,137,1,184,0,0.0,0.0,0.0,
+ 76,139,109,252,240,76,139,101,252,248,72,137,252,236,93,195,255,248,12,102.0,
+ 15.0,214,68,36,32,232,251,1,0,72,185,237,237,137,1,252,243.0,15.0,126,68,
+ 36,32,76,137,231,232,251,1,1,252,233,244,10,255,248,13,15.0,182,192,137,68,
+ 36,32,232,251,1,0,72,185,237,237,137,1,139,68,36,32,72,137,198,76,137,231,
+ 232,251,1,2,252,233,244,10,255,248,14,137,68,36,32,232,251,1,0,72,185,237,
+ 237,137,1,139,68,36,32,72,137,198,76,137,231,232,251,1,3,252,233,244,10,255,
+ 248,15,137,68,36,32,232,251,1,0,72,185,237,237,137,1,139,68,36,32,72,137,
+ 198,76,137,231,232,251,1,4,252,233,244,10,255,248,16,102,184,0,0.0,72,190,
+ 237,237,76,137,231,232,251,1,5,255,248,17,102,184,0,0.0,72,190,237,237,76,
+ 137,231,232,251,1,5,255,248,18,102.0,15.0,214,69,252,240,102.0,15.0,214,77,
+ 232,102.0,15.0,214,85,224,102.0,15.0,214,93,216,102.0,15.0,214,101,208,102.0,
+ 15.0,214,109,200,102.0,15.0,214,117,192,102.0,15.0,214,125,184,72,137,125,
+ 176,72,137,117,168,72,137,85,160,72,137,77,152,76,137,69,144,76,137,77,136,
+ 195,255,72,139,141,233,255,72,137,132,253,36,233,255,221.0,133,233,255,217.0,
+ 133,233,255,252,243.0,15.0,126,133,233,255,252,243.0,15.0,90,133,233,255,
+ 221.0,156,253,36,233,255,217.0,156,253,36,233,255,102.0,15.0,214,132,253,
+ 36,233,255,252,242.0,15.0,90,192,102.0,15.0,214,132,253,36,233,255,252,242.0,
+ 15.0,90,192,102.0,15.0,126,132,253,36,233,255,85,72,137,229,65,84,72,129.0,
+ 252,236,239,232,244,18,255,73,188,237,237,255,72,199.0,194,237,72,199.0,198,
+ 237,76,137,231,232,251,1,6,255,72,199.0,194,237,72,199.0,198,252,255,252,
+ 255.0,252,255.0,252,255.0,76,137,231,232,251,1,6,255,72,199.0,194,237,72,
+ 199.0,198,237,76,137,231,232,251,1,6,72,186,237,237,72,199.0,198,252,255,
+ 252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,7,255,72,137,8,72,199.0,
+ 198,252,254,252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,8,255,72,186,
+ 237,237,72,199.0,198,0,0.0,0.0,0.0,76,137,231,232,251,1,7,255,72,137,8,255,
+ 102.0,15.0,214,0,255,217.0,24,255,217.0,88,4,255,102.0,15.0,214,64,8,255,
+ 76,137,231,232,251,1,1,255,15.0,182,201,72,137,206,76,137,231,232,251,1,2,
+ 255,15.0,182,201,255,15.0,190,201,255,72,137,206,76,137,231,232,251,1,3,255,
+ 15.0,183,201,255,15.0,191,201,255,72,137,206,76,137,231,232,251,1,4,255,72,
+ 185,237,237,72,199.0,194,237,72,199.0,198,237,76,137,231,232,251,1,9,255,
+ 72,199.0,194,237,72,199.0,198,252,254,252,255.0,252,255.0,252,255.0,76,137,
+ 231,232,251,1,6,72,185,237,237,72,199.0,194,252,255,252,255.0,252,255.0,252,
+ 255.0,72,199.0,198,252,254,252,255.0,252,255.0,252,255.0,76,137,231,232,251,
+ 1,10,72,137,68,36,32,72,199.0,198,252,252,252,255.0,252,255.0,252,255.0,76,
+ 137,231,232,251,1,11,72,139,68,36,32,255,72,199.0,194,237,72,199.0,198,252,
+ 254,252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,6,72,185,237,237,72,
+ 199.0,194,252,255,252,255.0,252,255.0,252,255.0,72,199.0,198,252,254,252,
+ 255.0,252,255.0,252,255.0,76,137,231,232,251,1,12,137,68,36,32,72,199.0,198,
+ 252,252,252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,11,139,68,36,32,
+ 255,72,199.0,198,252,254,252,255.0,252,255.0,252,255.0,76,137,231,232,251,
+ 1,11,255,72,199.0,198,252,255,252,255.0,252,255.0,252,255.0,76,137,231,232,
+ 251,1,13,255,72,199.0,198,252,255,252,255.0,252,255.0,252,255.0,76,137,231,
+ 232,251,1,14,255,137,68,36,32,72,199.0,198,252,253,252,255.0,252,255.0,252,
+ 255.0,76,137,231,232,251,1,11,139,68,36,32,255,72,199.0,198,252,255,252,255.0,
+ 252,255.0,252,255.0,76,137,231,232,251,1,15,255,72,199.0,198,252,255,252,
+ 255.0,252,255.0,252,255.0,76,137,231,232,251,1,16,255,72,137,68,36,32,72,
+ 199.0,198,252,253,252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,11,72,
+ 139,68,36,32,255,72,199.0,198,252,255,252,255.0,252,255.0,252,255.0,76,137,
+ 231,232,251,1,17,72,137,68,36,32,72,199.0,198,252,253,252,255.0,252,255.0,
+ 252,255.0,76,137,231,232,251,1,11,72,139,68,36,32,255,72,199.0,198,252,255,
+ 252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,18,102.0,15.0,214,68,36,
+ 32,72,199.0,198,252,253,252,255.0,252,255.0,252,255.0,76,137,231,232,251,
+ 1,11,255,252,242.0,15.0,90,68,36,32,255,252,243.0,15.0,126,68,36,32,255,72,
+ 199.0,198,252,255,252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,19,102.0,
+ 15.0,214,68,36,32,72,199.0,198,252,253,252,255.0,252,255.0,252,255.0,76,137,
+ 231,232,251,1,11,252,243.0,15.0,126,68,36,32,255,72,199.0,198,252,255,252,
+ 255.0,252,255.0,252,255.0,76,137,231,232,251,1,20,102.0,15.0,214,68,36,32,
+ 102.0,15.0,214,76,36,40,72,199.0,198,252,253,252,255.0,252,255.0,252,255.0,
+ 76,137,231,232,251,1,11,252,243.0,15.0,126,68,36,32,252,243.0,15.0,126,76,
+ 36,40,255,72,139,141,233,72,199.0,194,252,255,252,255.0,252,255.0,252,255.0,
+ 76,137,230,72,137,207,232,251,1,20,72,131.0,252,236,4,72,199.0,198,252,253,
+ 252,255.0,252,255.0,252,255.0,76,137,231,232,251,1,11,255,76,139,101,252,
+ 248,72,137,252,236,93,194,236,255,85,72,137,229,65,84,65,85,73,137,252,252,
+ 76,137,231,232,251,1,21,73,137,197,72,129.0,252,248,239,15.0,140,244,16,255,
+ 15.0,143,244,17,255,72,193.0,224,4,72,41,196,72,129.0,252,236,239,255,72,
+ 186,237,237,72,199.0,198,0,0.0,0.0,0.0,76,137,231,232,251,1,7,72,131.0,252,
+ 236,16,255,72,185,237,237,72,199.0,194,237,72,199.0,198,237,76,137,231,232,
+ 251,1,10,255,72,185,237,237,72,199.0,194,237,72,199.0,198,237,76,137,231,
+ 232,251,1,22,255,72,185,237,237,72,199.0,194,237,72,199.0,198,237,76,137,
+ 231,232,251,1,12,255,72,199.0,198,237,76,137,231,232,251,1,14,255,15.0,182,
+ 192,255,15.0,190,192,255,15.0,183,192,255,15.0,191,192,255,72,199.0,198,237,
+ 76,137,231,232,251,1,14,131.0,252,248,0,15.0,149.0,208,15.0,182,192,255,72,
+ 199.0,198,237,76,137,231,232,251,1,13,255,72,199.0,198,237,76,137,231,232,
+ 251,1,17,255,72,199.0,198,237,76,137,231,232,251,1,15,255,72,199.0,198,237,
+ 76,137,231,232,251,1,16,255,72,199.0,198,237,76,137,231,232,251,1,18,255,
+ 72,199.0,198,237,76,137,231,232,251,1,20,255,252,243.0,15.0,126,193,255,72,
+ 141,132,253,36,233,72,131.0,252,236,4,72,199.0,194,237,76,137,230,72,137,
+ 199,232,251,1,20,255,72,199.0,198,237,76,137,231,232,251,1,19,255,72,199.0,
+ 198,237,76,137,231,232,251,1,19,137,4,36,217.0,4,36,255,137,20,36,217.0,4,
+ 36,255,72,137,224,72,129.0,192,239,73,137,192,72,199.0,193,237,76,137,252,
+ 234,72,199.0,198,237,76,137,231,232,251,1,23,255,72,137,224,72,129.0,192,
+ 239,73,137,192,72,199.0,193,237,76,137,252,234,72,199.0,198,237,76,137,231,
+ 232,251,1,24,255,72,137,224,72,129.0,192,239,73,137,193,73,199.0,192,237,
+ 72,199.0,193,237,76,137,252,234,72,199.0,198,237,76,137,231,232,251,1,25,
+ 255,72,185,237,237,139,1,72,137,199,232,251,1,26,255,72,131.0,196,32,255,
+ 252,243.0,15.0,126,188,253,36,233,255,252,243.0,15.0,126,180,253,36,233,255,
+ 252,243.0,15.0,126,172,253,36,233,255,252,243.0,15.0,126,164,253,36,233,255,
+ 252,243.0,15.0,126,156,253,36,233,255,252,243.0,15.0,126,148,253,36,233,255,
+ 252,243.0,15.0,126,140,253,36,233,255,252,243.0,15.0,126,132,253,36,233,255,
+ 76,139,140,253,36,233,255,76,139,132,253,36,233,255,72,139,140,253,36,233,
+ 255,72,139,148,253,36,233,255,72,139,180,253,36,233,255,72,139,60,36,255,
+ 72,129.0,196,239,255,176,8,255,232,251,1,27,72,131.0,252,236,48,255,72,137,
+ 68,36,32,232,251,1,0,72,185,237,237,137,1,72,186,237,237,72,199.0,198,237,
+ 76,137,231,232,251,1,7,72,139,76,36,32,72,137,8,252,233,244,10,255,72,137,
+ 68,36,32,232,251,1,0,72,185,237,237,137,1,72,186,237,237,72,199.0,198,0,0.0,
+ 0.0,0.0,76,137,231,232,251,1,7,72,139,76,36,32,72,137,8,252,233,244,10,255,
+ 102.0,15.0,214,68,36,32,232,251,1,0,72,185,237,237,137,1,72,186,237,237,72,
+ 199.0,198,0,0.0,0.0,0.0,76,137,231,232,251,1,7,72,139,76,36,32,72,137,8,252,
+ 233,244,10,255,102.0,15.0,214,76,36,40,102.0,15.0,214,68,36,32,232,251,1,
+ 0,72,185,237,237,137,1,72,186,237,237,72,199.0,198,0,0.0,0.0,0.0,76,137,231,
+ 232,251,1,7,72,139,76,36,40,72,137,72,8,72,139,76,36,32,72,137,8,252,233,
+ 244,10,255,252,233,244,11,255,252,233,244,13,255,252,233,244,14,255,252,233,
+ 244,15,255,252,243.0,15.0,90,192,252,233,244,12,255
+};
+
+static const char *const globnames[] = {
+ "lua_return_arg",
+ "lua_return_void",
+ "lua_return_double",
+ "lua_return_bool",
+ "lua_return_int",
+ "lua_return_uint",
+ "too_few_arguments",
+ "too_many_arguments",
+ "save_registers",
+ (const char *)0
+};
+static const char *const extnames[] = {
+ "GetLastError",
+ "lua_pushnumber",
+ "lua_pushboolean",
+ "push_int",
+ "push_uint",
+ "luaL_error",
+ "lua_rawgeti",
+ "push_cdata",
+ "lua_remove",
+ "lua_callk",
+ "check_typed_pointer",
+ "lua_settop",
+ "check_enum",
+ "check_uint32",
+ "check_int32",
+ "check_uint64",
+ "check_int64",
+ "check_uintptr",
+ "check_double",
+ "check_complex_float",
+ "check_complex_double",
+ "lua_gettop",
+ "check_typed_cfunction",
+ "unpack_varargs_float",
+ "unpack_varargs_int",
+ "unpack_varargs_stack_skip",
+ "SetLastError",
+ "FUNCTION",
+ (const char *)0
+};
+
+
+
+#if defined _WIN64 || defined __amd64__
+#define JUMP_SIZE 14
+#else
+#define JUMP_SIZE 4
+#endif
+
+#define MIN_BRANCH INT32_MIN
+#define MAX_BRANCH INT32_MAX
+#define BRANCH_OFF 4
+
+static void compile_extern_jump(struct jit* jit, lua_State* L, cfunction func, uint8_t* code)
+{
+ /* The jump code is the function pointer followed by a stub to call the
+ * function pointer. The stub exists in 64 bit so we can jump to functions
+ * with an offset greater than 2 GB.
+ *
+ * Note we have to manually set this up since there are commands buffered
+ * in the jit state and dynasm doesn't support rip relative addressing.
+ *
+ * eg on 64 bit:
+ * 0-8: function ptr
+ * 8-14: jmp aword [rip-14]
+ *
+ * for 32 bit we only set the function ptr as it can always fit in a 32
+ * bit displacement
+ */
+#if defined _WIN64 || defined __amd64__
+ *(cfunction*) code = func;
+ code[8] = 0xFF; /* FF /4 operand for jmp */
+ code[9] = 0x25; /* RIP displacement */
+ *(int32_t*) &code[10] = -14;
+#else
+ *(cfunction*) code = func;
+#endif
+}
+
+void compile_globals(struct jit* jit, lua_State* L)
+{
+ struct jit* Dst = jit;
+ int* perr = &jit->last_errno;
+ dasm_setup(Dst, build_actionlist);
+
+ /* Note: since the return code uses EBP to reset the stack pointer, we
+ * don't have to track the amount of stack space used. It also means we
+ * can handle stdcall and cdecl with the same code.
+ */
+
+ /* Note the various call_* functions want 32 bytes of 16 byte aligned
+ * stack
+ */
+
+
+
+
+ /* the general idea for the return functions is:
+ * 1) Save return value on stack
+ * 2) Call get_errno (this trashes the registers hence #1)
+ * 3) Unpack return value from stack
+ * 4) Call lua push function
+ * 5) Set eax to number of returned args (0 or 1)
+ * 6) Call return which pops our stack frame
+ */
+
+ dasm_put(Dst, 0);
+
+ dasm_put(Dst, 24, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 58, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 95, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 133, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 168, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 203, (unsigned int)((uintptr_t)(&"too few arguments")), (unsigned int)(((uintptr_t)(&"too few arguments"))>>32));
+
+ dasm_put(Dst, 221, (unsigned int)((uintptr_t)(&"too many arguments")), (unsigned int)(((uintptr_t)(&"too many arguments"))>>32));
+
+ dasm_put(Dst, 239);
+
+ compile(Dst, L, NULL, LUA_NOREF);
+}
+
+int x86_return_size(lua_State* L, int usr, const struct ctype* ct)
+{
+ int ret = 0;
+ const struct ctype* mt;
+
+ if (ct->calling_convention != C_CALL) {
+ size_t i;
+ size_t argn = lua_rawlen(L, usr);
+ for (i = 1; i <= argn; i++) {
+ lua_rawgeti(L, usr, (int) i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ ret += sizeof(void*);
+ } else {
+ switch (mt->type) {
+ case DOUBLE_TYPE:
+ case COMPLEX_FLOAT_TYPE:
+ case INT64_TYPE:
+ ret += 8;
+ break;
+ case COMPLEX_DOUBLE_TYPE:
+ ret += 16;
+ break;
+ case INTPTR_TYPE:
+ ret += sizeof(intptr_t);
+ break;
+ case FUNCTION_PTR_TYPE:
+ ret += sizeof(cfunction);
+ break;
+ case BOOL_TYPE:
+ case FLOAT_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ ret += 4;
+ break;
+ default:
+ return luaL_error(L, "NYI - argument type");
+ }
+ }
+
+ lua_pop(L, 1);
+ }
+ }
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ ret += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#endif
+
+ return ret;
+}
+
+#ifdef _WIN64
+#define MAX_REGISTERS(ct) 4 /* rcx, rdx, r8, r9 */
+
+#elif defined __amd64__
+#define MAX_INT_REGISTERS(ct) 6 /* rdi, rsi, rdx, rcx, r8, r9 */
+#define MAX_FLOAT_REGISTERS(ct) 8 /* xmm0-7 */
+
+#else
+#define MAX_INT_REGISTERS(ct) ((ct)->calling_convention == FAST_CALL ? 2 /* ecx, edx */ : 0)
+#define MAX_FLOAT_REGISTERS(ct) 0
+#endif
+
+struct reg_alloc {
+#ifdef _WIN64
+ int regs;
+ int is_float[4];
+ int is_int[4];
+#else
+ int floats;
+ int ints;
+#endif
+ int off;
+};
+
+#ifdef _WIN64
+#define REGISTER_STACK_SPACE(ct) (4*8)
+#elif defined __amd64__
+#define REGISTER_STACK_SPACE(ct) (14*8)
+#else
+#define REGISTER_STACK_SPACE(ct) ALIGN_UP(((ct)->calling_convention == FAST_CALL ? 2*4 : 0), 15)
+#endif
+
+/* Fastcall:
+ * Uses ecx, edx as first two int registers
+ * Everything else on stack (include 64bit ints)
+ * No overflow stack space
+ * Pops the stack before returning
+ * Returns int in eax, float in ST0
+ * We use the same register allocation logic as posix x64 with 2 int regs and 0 float regs
+ */
+
+static void get_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+ /* grab the register from the shadow space */
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ dasm_put(Dst, 308, 16 + 8*reg->regs);
+ reg->regs++;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 308, - 80 - 8*reg->ints);
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 309, - 8 - 4*reg->ints);
+ reg->ints++;
+ }
+#endif
+ else if (is_int64) {
+ dasm_put(Dst, 308, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 309, reg->off);
+ reg->off += 4;
+ }
+}
+
+static void add_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ dasm_put(Dst, 313, 32 + 8*(reg->regs));
+ reg->is_int[reg->regs++] = 1;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 313, 32 + 8*reg->ints);
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 313, 32 + 4*reg->ints);
+ reg->ints++;
+ }
+#endif
+
+ else if (is_int64) {
+ dasm_put(Dst, 313, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 314, reg->off);
+ reg->off += 4;
+ }
+}
+
+static void get_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ dasm_put(Dst, 320, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 324, reg->off);
+ reg->off += 4;
+ }
+#else
+ int off;
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ off = -16 - 8*reg->regs;
+ reg->regs++;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ off = -16 - 8*reg->floats;
+ reg->floats++;
+ }
+#endif
+ else {
+ off = reg->off;
+ reg->off += is_double ? 8 : 4;
+ }
+
+ if (is_double) {
+ dasm_put(Dst, 328, off);
+ } else {
+ dasm_put(Dst, 335, off);
+ }
+#endif
+}
+
+static void add_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ dasm_put(Dst, 342, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 348, reg->off);
+ reg->off += 4;
+ }
+#else
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ if (is_double) {
+ dasm_put(Dst, 354, 32 + 8*(reg->regs));
+ } else {
+ dasm_put(Dst, 362, 32 + 8*(reg->regs));
+ }
+ reg->is_float[reg->regs++] = 1;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ if (is_double) {
+ dasm_put(Dst, 354, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats));
+ } else {
+ dasm_put(Dst, 362, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats));
+ }
+ reg->floats++;
+ }
+#endif
+
+ else if (is_double) {
+ dasm_put(Dst, 354, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 375, reg->off);
+ reg->off += 4;
+ }
+#endif
+}
+
+#if defined _WIN64 || defined __amd64__
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 1)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 1)
+#else
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 0)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 0)
+#endif
+
+cfunction compile_callback(lua_State* L, int fidx, int ct_usr, const struct ctype* ct)
+{
+ int i, nargs;
+ cfunction* pf;
+ struct ctype ct2 = *ct;
+ const struct ctype* mt;
+ struct reg_alloc reg;
+ int num_upvals = 0;
+ int top = lua_gettop(L);
+ struct jit* Dst = get_jit(L);
+ int ref;
+ int hidden_arg_off = 0;
+
+ ct_usr = lua_absindex(L, ct_usr);
+ fidx = lua_absindex(L, fidx);
+
+ assert(lua_isnil(L, fidx) || lua_isfunction(L, fidx));
+
+ memset(®, 0, sizeof(reg));
+#ifdef _WIN64
+ reg.off = 16 + REGISTER_STACK_SPACE(ct); /* stack registers are above the shadow space */
+#elif __amd64__
+ reg.off = 16;
+#else
+ reg.off = 8;
+#endif
+
+ dasm_setup(Dst, build_actionlist);
+
+ // add a table to store ctype and function upvalues
+ // callback_set assumes the first value is the lua function
+ nargs = (int) lua_rawlen(L, ct_usr);
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ if (ct->has_var_arg) {
+ luaL_error(L, "can't create callbacks with varargs");
+ }
+
+ // setup a stack frame to hold args for the call into lua_call
+
+ dasm_put(Dst, 388, 8 + 16 + 32 + REGISTER_STACK_SPACE(ct));
+ if (ct->calling_convention == FAST_CALL) {
+ }
+
+ // hardcode the lua_State* value into the assembly
+ dasm_put(Dst, 403, (unsigned int)((uintptr_t)(L)), (unsigned int)(((uintptr_t)(L))>>32));
+
+ /* get the upval table */
+ dasm_put(Dst, 408, ref, LUA_REGISTRYINDEX);
+
+ /* get the lua function */
+ lua_pushvalue(L, fidx);
+ lua_rawseti(L, -2, ++num_upvals);
+ assert(num_upvals == CALLBACK_FUNC_USR_IDX);
+ dasm_put(Dst, 424, num_upvals);
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ hidden_arg_off = reg.off;
+ reg.off += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#else
+ (void) hidden_arg_off;
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ /* on the lua stack in the callback:
+ * upval tbl, lua func, i-1 args
+ */
+ dasm_put(Dst, 447, num_upvals-1, -i-1, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_pointer(Dst, ct, ®);
+ dasm_put(Dst, 485);
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ dasm_put(Dst, 507, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_int(Dst, ct, ®, 1);
+ dasm_put(Dst, 526);
+ break;
+
+ case INTPTR_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ dasm_put(Dst, 507, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_pointer(Dst, ct, ®);
+ dasm_put(Dst, 526);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if defined _WIN64 || defined __amd64__
+ /* complex floats are two floats packed into a double */
+ dasm_put(Dst, 507, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 530);
+#else
+ /* complex floats are real followed by imag on the stack */
+ dasm_put(Dst, 507, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 535);
+ get_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 538);
+#endif
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 507, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ /* real */
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 530);
+ /* imag */
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 542);
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ get_float(Dst, ct, ®, mt->type == DOUBLE_TYPE);
+ dasm_put(Dst, 548);
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ dasm_put(Dst, 556);
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 570);
+ } else {
+ dasm_put(Dst, 574);
+ }
+ dasm_put(Dst, 578);
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 589);
+ } else {
+ dasm_put(Dst, 593);
+ }
+ dasm_put(Dst, 578);
+ break;
+
+ case ENUM_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 597);
+ } else {
+ dasm_put(Dst, 578);
+ }
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback arg type");
+ }
+ }
+ }
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ dasm_put(Dst, 608, (unsigned int)((uintptr_t)(0)), (unsigned int)(((uintptr_t)(0))>>32), (mt->pointers || mt->type != VOID_TYPE) ? 1 : 0, nargs);
+
+ // Unpack the return argument if not "void", also clean-up the lua stack
+ // to remove the return argument and bind table. Use lua_settop rather
+ // than lua_pop as lua_pop is implemented as a macro.
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 628, num_upvals-1, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+
+ } else {
+ switch (mt->type) {
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 712, num_upvals-1, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 794);
+ break;
+
+ case BOOL_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 813);
+ } else {
+ dasm_put(Dst, 832);
+ }
+ dasm_put(Dst, 851);
+ break;
+
+ case INT64_TYPE:
+ lua_pop(L, 1);
+
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 878);
+ } else {
+ dasm_put(Dst, 897);
+ }
+
+ dasm_put(Dst, 916);
+ break;
+
+ case INTPTR_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 945);
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 992);
+ if (mt->type == FLOAT_TYPE) {
+ dasm_put(Dst, 1035);
+ } else {
+ dasm_put(Dst, 1043);
+ }
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit complex floats are two floats packed into a double,
+ * on 32 bit returned complex floats use eax and edx */
+ dasm_put(Dst, 1051);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored which is popped by the called
+ * function */
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1101);
+#else
+ dasm_put(Dst, 1164, hidden_arg_off);
+#endif
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback return type");
+ }
+ }
+
+ dasm_put(Dst, 1213, x86_return_size(L, ct_usr, ct));
+
+ lua_pop(L, 1); /* upval table - already in registry */
+ assert(lua_gettop(L) == top);
+
+ ct2.is_jitted = 1;
+ pf = (cfunction*) push_cdata(L, ct_usr, &ct2);
+ *pf = compile(Dst, L, NULL, ref);
+
+ assert(lua_gettop(L) == top + 1);
+
+ return *pf;
+}
+
+void compile_function(lua_State* L, cfunction func, int ct_usr, const struct ctype* ct)
+{
+ size_t i, nargs;
+ int num_upvals;
+ const struct ctype* mbr_ct;
+ struct jit* Dst = get_jit(L);
+ struct reg_alloc reg;
+ void* p;
+ int top = lua_gettop(L);
+ int* perr = &Dst->last_errno;
+
+ ct_usr = lua_absindex(L, ct_usr);
+
+ memset(®, 0, sizeof(reg));
+ reg.off = 32 + REGISTER_STACK_SPACE(ct);
+
+ dasm_setup(Dst, build_actionlist);
+
+ p = push_cdata(L, ct_usr, ct);
+ *(cfunction*) p = func;
+ num_upvals = 1;
+
+ nargs = lua_rawlen(L, ct_usr);
+
+ if (ct->calling_convention != C_CALL && ct->has_var_arg) {
+ luaL_error(L, "vararg is only allowed with the c calling convention");
+ }
+
+ dasm_put(Dst, 1226, nargs);
+
+ if (!ct->has_var_arg) {
+ dasm_put(Dst, 1258);
+ }
+
+ /* no need to zero extend eax returned by lua_gettop to rax as x86-64
+ * preguarentees that the upper 32 bits will be zero */
+ dasm_put(Dst, 1263, 32 + REGISTER_STACK_SPACE(ct));
+
+#if !defined _WIN64 && !defined __amd64__
+ /* Returned complex doubles require a hidden first parameter where the
+ * data is stored, which is popped by the calling code. */
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mbr_ct->pointers && mbr_ct->type == COMPLEX_DOUBLE_TYPE) {
+ /* we can allocate more space for arguments as long as no add_*
+ * function has been called yet, mbr_ct will be added as an upvalue in
+ * the return processing later */
+ dasm_put(Dst, 1276, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ add_pointer(Dst, ct, ®);
+ }
+ lua_pop(L, 1);
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, (int) i);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1300, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals), i);
+ add_pointer(Dst, ct, ®);
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1320, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals), i);
+ add_pointer(Dst, ct, ®);
+ break;
+
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1340, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals), i);
+ add_int(Dst, ct, ®, 0);
+ break;
+
+ case INT8_TYPE:
+ dasm_put(Dst, 1360, i);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1372);
+ } else {
+ dasm_put(Dst, 1376);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT16_TYPE:
+ dasm_put(Dst, 1360, i);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1380);
+ } else {
+ dasm_put(Dst, 1384);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case BOOL_TYPE:
+ dasm_put(Dst, 1388, i);
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT32_TYPE:
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1410, i);
+ } else {
+ dasm_put(Dst, 1360, i);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INTPTR_TYPE:
+ dasm_put(Dst, 1422, i);
+ add_pointer(Dst, ct, ®);
+ lua_pop(L, 1);
+ break;
+
+ case INT64_TYPE:
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1434, i);
+ } else {
+ dasm_put(Dst, 1446, i);
+ }
+ add_int(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case DOUBLE_TYPE:
+ dasm_put(Dst, 1458, i);
+ add_float(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored (this is popped by the called
+ * function) */
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1470, i);
+ add_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 1482);
+ add_float(Dst, ct, ®, 1);
+#else
+ dasm_put(Dst, 1488, reg.off, i);
+ reg.off += 16;
+#endif
+ lua_pop(L, 1);
+ break;
+
+ case FLOAT_TYPE:
+ dasm_put(Dst, 1458, i);
+ add_float(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1514, i);
+ /* complex floats are two floats packed into a double */
+ add_float(Dst, ct, ®, 1);
+#else
+ /* returned complex floats use eax and edx */
+ dasm_put(Dst, 1526, i);
+ add_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 1544);
+ add_float(Dst, ct, ®, 0);
+#endif
+ lua_pop(L, 1);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call arg type");
+ }
+ }
+ }
+
+ if (ct->has_var_arg) {
+#ifdef _WIN64
+ if (reg.regs < MAX_REGISTERS(ct)) {
+ assert(reg.regs == nargs);
+ } else {
+ }
+
+ for (i = nargs; i < MAX_REGISTERS(ct); i++) {
+ reg.is_int[i] = reg.is_float[i] = 1;
+ }
+ reg.regs = MAX_REGISTERS(ct);
+#elif defined __amd64__
+ if (reg.floats < MAX_FLOAT_REGISTERS(ct)) {
+ dasm_put(Dst, 1551, 32 + 8*(MAX_INT_REGISTERS(ct) + reg.floats), MAX_FLOAT_REGISTERS(ct) - reg.floats, nargs+1);
+ }
+
+ if (reg.ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 1581, 32 + 8*(reg.ints), MAX_INT_REGISTERS(ct) - reg.ints, nargs+1);
+ }
+
+ dasm_put(Dst, 1611, reg.off, MAX_FLOAT_REGISTERS(ct) - reg.floats, MAX_INT_REGISTERS(ct) - reg.ints, nargs+1);
+
+ reg.floats = MAX_FLOAT_REGISTERS(ct);
+ reg.ints = MAX_INT_REGISTERS(ct);
+#else
+#endif
+ }
+
+ dasm_put(Dst, 1645, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ /* remove the stack space to call local functions */
+ dasm_put(Dst, 1659);
+
+#ifdef _WIN64
+ switch (reg.regs) {
+ case 4:
+ if (reg.is_float[3]) {
+ }
+ if (reg.is_int[3]) {
+ }
+ case 3:
+ if (reg.is_float[2]) {
+ }
+ if (reg.is_int[2]) {
+ }
+ case 2:
+ if (reg.is_float[1]) {
+ }
+ if (reg.is_int[1]) {
+ }
+ case 1:
+ if (reg.is_float[0]) {
+ }
+ if (reg.is_int[0]) {
+ }
+ case 0:
+ break;
+ }
+
+ /* don't remove the space for the registers as we need 32 bytes of register overflow space */
+ assert(REGISTER_STACK_SPACE(ct) == 32);
+
+#elif defined __amd64__
+ switch (reg.floats) {
+ case 8:
+ dasm_put(Dst, 1664, 8*(MAX_INT_REGISTERS(ct)+7));
+ case 7:
+ dasm_put(Dst, 1673, 8*(MAX_INT_REGISTERS(ct)+6));
+ case 6:
+ dasm_put(Dst, 1682, 8*(MAX_INT_REGISTERS(ct)+5));
+ case 5:
+ dasm_put(Dst, 1691, 8*(MAX_INT_REGISTERS(ct)+4));
+ case 4:
+ dasm_put(Dst, 1700, 8*(MAX_INT_REGISTERS(ct)+3));
+ case 3:
+ dasm_put(Dst, 1709, 8*(MAX_INT_REGISTERS(ct)+2));
+ case 2:
+ dasm_put(Dst, 1718, 8*(MAX_INT_REGISTERS(ct)+1));
+ case 1:
+ dasm_put(Dst, 1727, 8*(MAX_INT_REGISTERS(ct)));
+ case 0:
+ break;
+ }
+
+ switch (reg.ints) {
+ case 6:
+ dasm_put(Dst, 1736, 8*5);
+ case 5:
+ dasm_put(Dst, 1743, 8*4);
+ case 4:
+ dasm_put(Dst, 1750, 8*3);
+ case 3:
+ dasm_put(Dst, 1757, 8*2);
+ case 2:
+ dasm_put(Dst, 1764, 8*1);
+ case 1:
+ dasm_put(Dst, 1771);
+ case 0:
+ break;
+ }
+
+ dasm_put(Dst, 1776, REGISTER_STACK_SPACE(ct));
+#else
+ if (ct->calling_convention == FAST_CALL) {
+ switch (reg.ints) {
+ case 2:
+ case 1:
+ case 0:
+ break;
+ }
+
+ }
+#endif
+
+#ifdef __amd64__
+ if (ct->has_var_arg) {
+ /* al stores an upper limit on the number of float register, note that
+ * its allowed to be more than the actual number of float registers used as
+ * long as its 0-8 */
+ dasm_put(Dst, 1781);
+ }
+#endif
+
+ dasm_put(Dst, 1784);
+
+ /* note on windows X86 the stack may be only aligned to 4 (stdcall will
+ * have popped a multiple of 4 bytes), but we don't need 16 byte alignment on
+ * that platform
+ */
+
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers || mbr_ct->type == INTPTR_TYPE) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1794, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals));
+
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1794, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals));
+ break;
+
+ case INT64_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1837, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1883, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1930, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1992);
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1997);
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1372);
+ } else {
+ dasm_put(Dst, 1376);
+ }
+ dasm_put(Dst, 2002);
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1380);
+ } else {
+ dasm_put(Dst, 1384);
+ }
+ dasm_put(Dst, 2002);
+ break;
+
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 2007);
+ } else {
+ dasm_put(Dst, 2002);
+ }
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 2012);
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 2017);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call return type");
+ }
+ }
+
+ assert(lua_gettop(L) == top + num_upvals);
+ {
+ cfunction f = compile(Dst, L, func, LUA_NOREF);
+ /* add a callback as an upval so that the jitted code gets cleaned up when
+ * the function gets gc'd */
+ push_callback(L, f);
+ lua_pushcclosure(L, (lua_CFunction) f, num_upvals+1);
+ }
+}
+
diff --git a/plugins/MirLua/Modules/luaffi/src/call_x64win.h b/plugins/MirLua/Modules/luaffi/src/call_x64win.h new file mode 100644 index 0000000000..00041fe07f --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/call_x64win.h @@ -0,0 +1,1191 @@ +/*
+** This file has been pre-processed with DynASM.
+** http://luajit.org/dynasm.html
+** DynASM version 1.3.0, DynASM x64 version 1.3.0
+** DO NOT EDIT! The original file is in "call_x86.dasc".
+*/
+
+#if DASM_VERSION != 10300
+#error "Version mismatch between DynASM and included encoding engine"
+#endif
+
+/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+
+static const unsigned char build_actionlist[1965] = {
+ 248,10,184,1,0.0,0.0,0.0,76,139,109,252,240,76,139,101,252,248,72,137,252,
+ 236,93,195,255,248,11,232,251,1,0,72,185,237,237,137,1,184,0,0.0,0.0,0.0,
+ 76,139,109,252,240,76,139,101,252,248,72,137,252,236,93,195,255,248,12,102.0,
+ 15.0,214,68,36,32,232,251,1,0,72,185,237,237,137,1,252,243.0,15.0,126,76,
+ 36,32,76,137,225,232,251,1,1,252,233,244,10,255,248,13,15.0,182,192,137,68,
+ 36,32,232,251,1,0,72,185,237,237,137,1,139,68,36,32,72,137,194,76,137,225,
+ 232,251,1,2,252,233,244,10,255,248,14,137,68,36,32,232,251,1,0,72,185,237,
+ 237,137,1,139,68,36,32,72,137,194,76,137,225,232,251,1,3,252,233,244,10,255,
+ 248,15,137,68,36,32,232,251,1,0,72,185,237,237,137,1,139,68,36,32,72,137,
+ 194,76,137,225,232,251,1,4,252,233,244,10,255,248,16,102,184,0,0.0,72,186,
+ 237,237,76,137,225,232,251,1,5,255,248,17,102,184,0,0.0,72,186,237,237,76,
+ 137,225,232,251,1,5,255,248,18,72,137,77,16,72,137,85,24,76,137,69,32,76,
+ 137,77,40,102.0,15.0,214,69,252,240,102.0,15.0,214,77,232,102.0,15.0,214,
+ 85,224,102.0,15.0,214,93,216,195,255,72,139,141,233,255,72,137,132,253,36,
+ 233,255,221.0,133,233,255,217.0,133,233,255,252,243.0,15.0,126,133,233,255,
+ 252,243.0,15.0,90,133,233,255,221.0,156,253,36,233,255,217.0,156,253,36,233,
+ 255,102.0,15.0,214,132,253,36,233,255,252,242.0,15.0,90,192,102.0,15.0,214,
+ 132,253,36,233,255,252,242.0,15.0,90,192,102.0,15.0,126,132,253,36,233,255,
+ 85,72,137,229,65,84,72,129.0,252,236,239,232,244,18,255,73,188,237,237,255,
+ 73,199.0,192,237,72,199.0,194,237,76,137,225,232,251,1,6,255,73,199.0,192,
+ 237,72,199.0,194,252,255,252,255.0,252,255.0,252,255.0,76,137,225,232,251,
+ 1,6,255,73,199.0,192,237,72,199.0,194,237,76,137,225,232,251,1,6,73,184,237,
+ 237,72,199.0,194,252,255,252,255.0,252,255.0,252,255.0,76,137,225,232,251,
+ 1,7,255,72,137,8,72,199.0,194,252,254,252,255.0,252,255.0,252,255.0,76,137,
+ 225,232,251,1,8,255,73,184,237,237,72,199.0,194,0,0.0,0.0,0.0,76,137,225,
+ 232,251,1,7,255,72,137,8,255,102.0,15.0,214,0,255,217.0,24,255,217.0,88,4,
+ 255,102.0,15.0,214,64,8,255,252,243.0,15.0,126,200,76,137,225,232,251,1,1,
+ 255,15.0,182,201,72,137,202,76,137,225,232,251,1,2,255,15.0,182,201,255,15.0,
+ 190,201,255,72,137,202,76,137,225,232,251,1,3,255,15.0,183,201,255,15.0,191,
+ 201,255,72,137,202,76,137,225,232,251,1,4,255,73,185,237,237,73,199.0,192,
+ 237,72,199.0,194,237,76,137,225,232,251,1,9,255,73,199.0,192,237,72,199.0,
+ 194,252,254,252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,6,73,185,237,
+ 237,73,199.0,192,252,255,252,255.0,252,255.0,252,255.0,72,199.0,194,252,254,
+ 252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,10,72,137,68,36,32,72,
+ 199.0,194,252,252,252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,11,72,
+ 139,68,36,32,255,73,199.0,192,237,72,199.0,194,252,254,252,255.0,252,255.0,
+ 252,255.0,76,137,225,232,251,1,6,73,185,237,237,73,199.0,192,252,255,252,
+ 255.0,252,255.0,252,255.0,72,199.0,194,252,254,252,255.0,252,255.0,252,255.0,
+ 76,137,225,232,251,1,12,137,68,36,32,72,199.0,194,252,252,252,255.0,252,255.0,
+ 252,255.0,76,137,225,232,251,1,11,139,68,36,32,255,72,199.0,194,252,254,252,
+ 255.0,252,255.0,252,255.0,76,137,225,232,251,1,11,255,72,199.0,194,252,255,
+ 252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,13,255,72,199.0,194,252,
+ 255,252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,14,255,137,68,36,32,
+ 72,199.0,194,252,253,252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,11,
+ 139,68,36,32,255,72,199.0,194,252,255,252,255.0,252,255.0,252,255.0,76,137,
+ 225,232,251,1,15,255,72,199.0,194,252,255,252,255.0,252,255.0,252,255.0,76,
+ 137,225,232,251,1,16,255,72,137,68,36,32,72,199.0,194,252,253,252,255.0,252,
+ 255.0,252,255.0,76,137,225,232,251,1,11,72,139,68,36,32,255,72,199.0,194,
+ 252,255,252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,17,72,137,68,36,
+ 32,72,199.0,194,252,253,252,255.0,252,255.0,252,255.0,76,137,225,232,251,
+ 1,11,72,139,68,36,32,255,72,199.0,194,252,255,252,255.0,252,255.0,252,255.0,
+ 76,137,225,232,251,1,18,102.0,15.0,214,68,36,32,72,199.0,194,252,253,252,
+ 255.0,252,255.0,252,255.0,76,137,225,232,251,1,11,255,252,242.0,15.0,90,68,
+ 36,32,255,252,243.0,15.0,126,68,36,32,255,72,199.0,194,252,255,252,255.0,
+ 252,255.0,252,255.0,76,137,225,232,251,1,19,102.0,15.0,214,68,36,32,72,199.0,
+ 194,252,253,252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,11,252,243.0,
+ 15.0,126,68,36,32,255,72,199.0,194,252,255,252,255.0,252,255.0,252,255.0,
+ 76,137,225,232,251,1,20,102.0,15.0,214,68,36,32,102.0,15.0,214,76,36,40,72,
+ 199.0,194,252,253,252,255.0,252,255.0,252,255.0,76,137,225,232,251,1,11,252,
+ 243.0,15.0,126,68,36,32,252,243.0,15.0,126,76,36,40,255,72,139,141,233,73,
+ 199.0,192,252,255,252,255.0,252,255.0,252,255.0,76,137,226,72,137,201,232,
+ 251,1,20,72,131.0,252,236,4,72,199.0,194,252,253,252,255.0,252,255.0,252,
+ 255.0,76,137,225,232,251,1,11,255,76,139,101,252,248,72,137,252,236,93,194,
+ 236,255,85,72,137,229,65,84,65,85,73,137,204,72,131.0,252,236,32,76,137,225,
+ 232,251,1,21,73,137,197,72,129.0,252,248,239,15.0,140,244,16,255,15.0,143,
+ 244,17,255,72,193.0,224,4,72,41,196,72,129.0,252,236,239,255,73,184,237,237,
+ 72,199.0,194,0,0.0,0.0,0.0,76,137,225,232,251,1,7,72,131.0,252,236,16,255,
+ 73,185,237,237,73,199.0,192,237,72,199.0,194,237,76,137,225,232,251,1,10,
+ 255,73,185,237,237,73,199.0,192,237,72,199.0,194,237,76,137,225,232,251,1,
+ 22,255,73,185,237,237,73,199.0,192,237,72,199.0,194,237,76,137,225,232,251,
+ 1,12,255,72,199.0,194,237,76,137,225,232,251,1,14,255,15.0,182,192,255,15.0,
+ 190,192,255,15.0,183,192,255,15.0,191,192,255,72,199.0,194,237,76,137,225,
+ 232,251,1,14,131.0,252,248,0,15.0,149.0,208,15.0,182,192,255,72,199.0,194,
+ 237,76,137,225,232,251,1,13,255,72,199.0,194,237,76,137,225,232,251,1,17,
+ 255,72,199.0,194,237,76,137,225,232,251,1,15,255,72,199.0,194,237,76,137,
+ 225,232,251,1,16,255,72,199.0,194,237,76,137,225,232,251,1,18,255,72,199.0,
+ 194,237,76,137,225,232,251,1,20,255,252,243.0,15.0,126,193,255,72,141,132,
+ 253,36,233,72,131.0,252,236,4,73,199.0,192,237,76,137,226,72,137,193,232,
+ 251,1,20,255,72,199.0,194,237,76,137,225,232,251,1,19,255,72,199.0,194,237,
+ 76,137,225,232,251,1,19,137,4,36,217.0,4,36,255,137,20,36,217.0,4,36,255,
+ 73,129.0,252,253,239,15.0,142,244,247.0,72,137,224,72,129.0,192,239,73,137,
+ 193,77,137,232,72,199.0,194,237,76,137,225,232,251,1,23,72,137,224,72,129.0,
+ 192,239,73,137,193,73,199.0,192,237,72,199.0,194,237,76,137,225,232,251,1,
+ 24,252,233,244,248.0,248,1,72,137,224,72,129.0,192,239,73,137,193,77,137,
+ 232,72,199.0,194,237,76,137,225,232,251,1,24,248,2,255,72,137,224,72,129.0,
+ 192,239,73,137,193,77,137,232,72,199.0,194,237,76,137,225,232,251,1,23,255,
+ 72,185,237,237,139,1,72,137,193,232,251,1,25,255,72,131.0,196,32,255,252,
+ 243.0,15.0,126,156,253,36,233,255,76,139,140,253,36,233,255,252,243.0,15.0,
+ 126,148,253,36,233,255,76,139,132,253,36,233,255,252,243.0,15.0,126,140,253,
+ 36,233,255,72,139,148,253,36,233,255,252,243.0,15.0,126,4,36,255,72,139,12,
+ 36,255,232,251,1,26,72,131.0,252,236,48,255,72,137,68,36,32,232,251,1,0,72,
+ 185,237,237,137,1,73,184,237,237,72,199.0,194,237,76,137,225,232,251,1,7,
+ 72,139,76,36,32,72,137,8,252,233,244,10,255,72,137,68,36,32,232,251,1,0,72,
+ 185,237,237,137,1,73,184,237,237,72,199.0,194,0,0.0,0.0,0.0,76,137,225,232,
+ 251,1,7,72,139,76,36,32,72,137,8,252,233,244,10,255,102.0,15.0,214,68,36,
+ 32,232,251,1,0,72,185,237,237,137,1,73,184,237,237,72,199.0,194,0,0.0,0.0,
+ 0.0,76,137,225,232,251,1,7,72,139,76,36,32,72,137,8,252,233,244,10,255,102.0,
+ 15.0,214,76,36,40,102.0,15.0,214,68,36,32,232,251,1,0,72,185,237,237,137,
+ 1,73,184,237,237,72,199.0,194,0,0.0,0.0,0.0,76,137,225,232,251,1,7,72,139,
+ 76,36,40,72,137,72,8,72,139,76,36,32,72,137,8,252,233,244,10,255,252,233,
+ 244,11,255,252,233,244,13,255,252,233,244,14,255,252,233,244,15,255,252,243.0,
+ 15.0,90,192,252,233,244,12,255
+};
+
+static const char *const globnames[] = {
+ "lua_return_arg",
+ "lua_return_void",
+ "lua_return_double",
+ "lua_return_bool",
+ "lua_return_int",
+ "lua_return_uint",
+ "too_few_arguments",
+ "too_many_arguments",
+ "save_registers",
+ (const char *)0
+};
+static const char *const extnames[] = {
+ "GetLastError",
+ "lua_pushnumber",
+ "lua_pushboolean",
+ "push_int",
+ "push_uint",
+ "luaL_error",
+ "lua_rawgeti",
+ "push_cdata",
+ "lua_remove",
+ "lua_callk",
+ "check_typed_pointer",
+ "lua_settop",
+ "check_enum",
+ "check_uint32",
+ "check_int32",
+ "check_uint64",
+ "check_int64",
+ "check_uintptr",
+ "check_double",
+ "check_complex_float",
+ "check_complex_double",
+ "lua_gettop",
+ "check_typed_cfunction",
+ "unpack_varargs_stack",
+ "unpack_varargs_reg",
+ "SetLastError",
+ "FUNCTION",
+ (const char *)0
+};
+
+
+
+#if defined _WIN64 || defined __amd64__
+#define JUMP_SIZE 14
+#else
+#define JUMP_SIZE 4
+#endif
+
+#define MIN_BRANCH INT32_MIN
+#define MAX_BRANCH INT32_MAX
+#define BRANCH_OFF 4
+
+static void compile_extern_jump(struct jit* jit, lua_State* L, cfunction func, uint8_t* code)
+{
+ /* The jump code is the function pointer followed by a stub to call the
+ * function pointer. The stub exists in 64 bit so we can jump to functions
+ * with an offset greater than 2 GB.
+ *
+ * Note we have to manually set this up since there are commands buffered
+ * in the jit state and dynasm doesn't support rip relative addressing.
+ *
+ * eg on 64 bit:
+ * 0-8: function ptr
+ * 8-14: jmp aword [rip-14]
+ *
+ * for 32 bit we only set the function ptr as it can always fit in a 32
+ * bit displacement
+ */
+#if defined _WIN64 || defined __amd64__
+ *(cfunction*) code = func;
+ code[8] = 0xFF; /* FF /4 operand for jmp */
+ code[9] = 0x25; /* RIP displacement */
+ *(int32_t*) &code[10] = -14;
+#else
+ *(cfunction*) code = func;
+#endif
+}
+
+void compile_globals(struct jit* jit, lua_State* L)
+{
+ struct jit* Dst = jit;
+ int* perr = &jit->last_errno;
+ dasm_setup(Dst, build_actionlist);
+
+ /* Note: since the return code uses EBP to reset the stack pointer, we
+ * don't have to track the amount of stack space used. It also means we
+ * can handle stdcall and cdecl with the same code.
+ */
+
+ /* Note the various call_* functions want 32 bytes of 16 byte aligned
+ * stack
+ */
+
+
+
+
+ /* the general idea for the return functions is:
+ * 1) Save return value on stack
+ * 2) Call get_errno (this trashes the registers hence #1)
+ * 3) Unpack return value from stack
+ * 4) Call lua push function
+ * 5) Set eax to number of returned args (0 or 1)
+ * 6) Call return which pops our stack frame
+ */
+
+ dasm_put(Dst, 0);
+
+ dasm_put(Dst, 24, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 58, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 95, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 133, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 168, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ dasm_put(Dst, 203, (unsigned int)((uintptr_t)(&"too few arguments")), (unsigned int)(((uintptr_t)(&"too few arguments"))>>32));
+
+ dasm_put(Dst, 221, (unsigned int)((uintptr_t)(&"too many arguments")), (unsigned int)(((uintptr_t)(&"too many arguments"))>>32));
+
+ dasm_put(Dst, 239);
+
+ compile(Dst, L, NULL, LUA_NOREF);
+}
+
+int x86_return_size(lua_State* L, int usr, const struct ctype* ct)
+{
+ int ret = 0;
+ const struct ctype* mt;
+
+ if (ct->calling_convention != C_CALL) {
+ size_t i;
+ size_t argn = lua_rawlen(L, usr);
+ for (i = 1; i <= argn; i++) {
+ lua_rawgeti(L, usr, (int) i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ ret += sizeof(void*);
+ } else {
+ switch (mt->type) {
+ case DOUBLE_TYPE:
+ case COMPLEX_FLOAT_TYPE:
+ case INT64_TYPE:
+ ret += 8;
+ break;
+ case COMPLEX_DOUBLE_TYPE:
+ ret += 16;
+ break;
+ case INTPTR_TYPE:
+ ret += sizeof(intptr_t);
+ break;
+ case FUNCTION_PTR_TYPE:
+ ret += sizeof(cfunction);
+ break;
+ case BOOL_TYPE:
+ case FLOAT_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ ret += 4;
+ break;
+ default:
+ return luaL_error(L, "NYI - argument type");
+ }
+ }
+
+ lua_pop(L, 1);
+ }
+ }
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ ret += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#endif
+
+ return ret;
+}
+
+#ifdef _WIN64
+#define MAX_REGISTERS(ct) 4 /* rcx, rdx, r8, r9 */
+
+#elif defined __amd64__
+#define MAX_INT_REGISTERS(ct) 6 /* rdi, rsi, rdx, rcx, r8, r9 */
+#define MAX_FLOAT_REGISTERS(ct) 8 /* xmm0-7 */
+
+#else
+#define MAX_INT_REGISTERS(ct) ((ct)->calling_convention == FAST_CALL ? 2 /* ecx, edx */ : 0)
+#define MAX_FLOAT_REGISTERS(ct) 0
+#endif
+
+struct reg_alloc {
+#ifdef _WIN64
+ int regs;
+ int is_float[4];
+ int is_int[4];
+#else
+ int floats;
+ int ints;
+#endif
+ int off;
+};
+
+#ifdef _WIN64
+#define REGISTER_STACK_SPACE(ct) (4*8)
+#elif defined __amd64__
+#define REGISTER_STACK_SPACE(ct) (14*8)
+#else
+#define REGISTER_STACK_SPACE(ct) ALIGN_UP(((ct)->calling_convention == FAST_CALL ? 2*4 : 0), 15)
+#endif
+
+/* Fastcall:
+ * Uses ecx, edx as first two int registers
+ * Everything else on stack (include 64bit ints)
+ * No overflow stack space
+ * Pops the stack before returning
+ * Returns int in eax, float in ST0
+ * We use the same register allocation logic as posix x64 with 2 int regs and 0 float regs
+ */
+
+static void get_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+ /* grab the register from the shadow space */
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ dasm_put(Dst, 280, 16 + 8*reg->regs);
+ reg->regs++;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 280, - 80 - 8*reg->ints);
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 281, - 8 - 4*reg->ints);
+ reg->ints++;
+ }
+#endif
+ else if (is_int64) {
+ dasm_put(Dst, 280, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 281, reg->off);
+ reg->off += 4;
+ }
+}
+
+static void add_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ dasm_put(Dst, 285, 32 + 8*(reg->regs));
+ reg->is_int[reg->regs++] = 1;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 285, 32 + 8*reg->ints);
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 285, 32 + 4*reg->ints);
+ reg->ints++;
+ }
+#endif
+
+ else if (is_int64) {
+ dasm_put(Dst, 285, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 286, reg->off);
+ reg->off += 4;
+ }
+}
+
+static void get_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ dasm_put(Dst, 292, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 296, reg->off);
+ reg->off += 4;
+ }
+#else
+ int off;
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ off = -16 - 8*reg->regs;
+ reg->regs++;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ off = -16 - 8*reg->floats;
+ reg->floats++;
+ }
+#endif
+ else {
+ off = reg->off;
+ reg->off += is_double ? 8 : 4;
+ }
+
+ if (is_double) {
+ dasm_put(Dst, 300, off);
+ } else {
+ dasm_put(Dst, 307, off);
+ }
+#endif
+}
+
+static void add_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ dasm_put(Dst, 314, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 320, reg->off);
+ reg->off += 4;
+ }
+#else
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ if (is_double) {
+ dasm_put(Dst, 326, 32 + 8*(reg->regs));
+ } else {
+ dasm_put(Dst, 334, 32 + 8*(reg->regs));
+ }
+ reg->is_float[reg->regs++] = 1;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ if (is_double) {
+ dasm_put(Dst, 326, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats));
+ } else {
+ dasm_put(Dst, 334, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats));
+ }
+ reg->floats++;
+ }
+#endif
+
+ else if (is_double) {
+ dasm_put(Dst, 326, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 347, reg->off);
+ reg->off += 4;
+ }
+#endif
+}
+
+#if defined _WIN64 || defined __amd64__
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 1)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 1)
+#else
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 0)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 0)
+#endif
+
+cfunction compile_callback(lua_State* L, int fidx, int ct_usr, const struct ctype* ct)
+{
+ int i, nargs;
+ cfunction* pf;
+ struct ctype ct2 = *ct;
+ const struct ctype* mt;
+ struct reg_alloc reg;
+ int num_upvals = 0;
+ int top = lua_gettop(L);
+ struct jit* Dst = get_jit(L);
+ int ref;
+ int hidden_arg_off = 0;
+
+ ct_usr = lua_absindex(L, ct_usr);
+ fidx = lua_absindex(L, fidx);
+
+ assert(lua_isnil(L, fidx) || lua_isfunction(L, fidx));
+
+ memset(®, 0, sizeof(reg));
+#ifdef _WIN64
+ reg.off = 16 + REGISTER_STACK_SPACE(ct); /* stack registers are above the shadow space */
+#elif __amd64__
+ reg.off = 16;
+#else
+ reg.off = 8;
+#endif
+
+ dasm_setup(Dst, build_actionlist);
+
+ // add a table to store ctype and function upvalues
+ // callback_set assumes the first value is the lua function
+ nargs = (int) lua_rawlen(L, ct_usr);
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ if (ct->has_var_arg) {
+ luaL_error(L, "can't create callbacks with varargs");
+ }
+
+ // setup a stack frame to hold args for the call into lua_call
+
+ dasm_put(Dst, 360, 8 + 16 + 32 + REGISTER_STACK_SPACE(ct));
+ if (ct->calling_convention == FAST_CALL) {
+ }
+
+ // hardcode the lua_State* value into the assembly
+ dasm_put(Dst, 375, (unsigned int)((uintptr_t)(L)), (unsigned int)(((uintptr_t)(L))>>32));
+
+ /* get the upval table */
+ dasm_put(Dst, 380, ref, LUA_REGISTRYINDEX);
+
+ /* get the lua function */
+ lua_pushvalue(L, fidx);
+ lua_rawseti(L, -2, ++num_upvals);
+ assert(num_upvals == CALLBACK_FUNC_USR_IDX);
+ dasm_put(Dst, 396, num_upvals);
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ hidden_arg_off = reg.off;
+ reg.off += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#else
+ (void) hidden_arg_off;
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ /* on the lua stack in the callback:
+ * upval tbl, lua func, i-1 args
+ */
+ dasm_put(Dst, 419, num_upvals-1, -i-1, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_pointer(Dst, ct, ®);
+ dasm_put(Dst, 457);
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ dasm_put(Dst, 479, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_int(Dst, ct, ®, 1);
+ dasm_put(Dst, 498);
+ break;
+
+ case INTPTR_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ dasm_put(Dst, 479, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_pointer(Dst, ct, ®);
+ dasm_put(Dst, 498);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if defined _WIN64 || defined __amd64__
+ /* complex floats are two floats packed into a double */
+ dasm_put(Dst, 479, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 502);
+#else
+ /* complex floats are real followed by imag on the stack */
+ dasm_put(Dst, 479, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ get_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 507);
+ get_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 510);
+#endif
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 479, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ /* real */
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 502);
+ /* imag */
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 514);
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ get_float(Dst, ct, ®, mt->type == DOUBLE_TYPE);
+ dasm_put(Dst, 520);
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ dasm_put(Dst, 533);
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 547);
+ } else {
+ dasm_put(Dst, 551);
+ }
+ dasm_put(Dst, 555);
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 566);
+ } else {
+ dasm_put(Dst, 570);
+ }
+ dasm_put(Dst, 555);
+ break;
+
+ case ENUM_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 574);
+ } else {
+ dasm_put(Dst, 555);
+ }
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback arg type");
+ }
+ }
+ }
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ dasm_put(Dst, 585, (unsigned int)((uintptr_t)(0)), (unsigned int)(((uintptr_t)(0))>>32), (mt->pointers || mt->type != VOID_TYPE) ? 1 : 0, nargs);
+
+ // Unpack the return argument if not "void", also clean-up the lua stack
+ // to remove the return argument and bind table. Use lua_settop rather
+ // than lua_pop as lua_pop is implemented as a macro.
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 605, num_upvals-1, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+
+ } else {
+ switch (mt->type) {
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 689, num_upvals-1, (unsigned int)((uintptr_t)(mt)), (unsigned int)(((uintptr_t)(mt))>>32));
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 771);
+ break;
+
+ case BOOL_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 790);
+ } else {
+ dasm_put(Dst, 809);
+ }
+ dasm_put(Dst, 828);
+ break;
+
+ case INT64_TYPE:
+ lua_pop(L, 1);
+
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 855);
+ } else {
+ dasm_put(Dst, 874);
+ }
+
+ dasm_put(Dst, 893);
+ break;
+
+ case INTPTR_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 922);
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 969);
+ if (mt->type == FLOAT_TYPE) {
+ dasm_put(Dst, 1012);
+ } else {
+ dasm_put(Dst, 1020);
+ }
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit complex floats are two floats packed into a double,
+ * on 32 bit returned complex floats use eax and edx */
+ dasm_put(Dst, 1028);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored which is popped by the called
+ * function */
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1078);
+#else
+ dasm_put(Dst, 1141, hidden_arg_off);
+#endif
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback return type");
+ }
+ }
+
+ dasm_put(Dst, 1190, x86_return_size(L, ct_usr, ct));
+
+ lua_pop(L, 1); /* upval table - already in registry */
+ assert(lua_gettop(L) == top);
+
+ ct2.is_jitted = 1;
+ pf = (cfunction*) push_cdata(L, ct_usr, &ct2);
+ *pf = compile(Dst, L, NULL, ref);
+
+ assert(lua_gettop(L) == top + 1);
+
+ return *pf;
+}
+
+void compile_function(lua_State* L, cfunction func, int ct_usr, const struct ctype* ct)
+{
+ size_t i, nargs;
+ int num_upvals;
+ const struct ctype* mbr_ct;
+ struct jit* Dst = get_jit(L);
+ struct reg_alloc reg;
+ void* p;
+ int top = lua_gettop(L);
+ int* perr = &Dst->last_errno;
+
+ ct_usr = lua_absindex(L, ct_usr);
+
+ memset(®, 0, sizeof(reg));
+ reg.off = 32 + REGISTER_STACK_SPACE(ct);
+
+ dasm_setup(Dst, build_actionlist);
+
+ p = push_cdata(L, ct_usr, ct);
+ *(cfunction*) p = func;
+ num_upvals = 1;
+
+ nargs = lua_rawlen(L, ct_usr);
+
+ if (ct->calling_convention != C_CALL && ct->has_var_arg) {
+ luaL_error(L, "vararg is only allowed with the c calling convention");
+ }
+
+ dasm_put(Dst, 1203, nargs);
+
+ if (!ct->has_var_arg) {
+ dasm_put(Dst, 1239);
+ }
+
+ /* no need to zero extend eax returned by lua_gettop to rax as x86-64
+ * preguarentees that the upper 32 bits will be zero */
+ dasm_put(Dst, 1244, 32 + REGISTER_STACK_SPACE(ct));
+
+#if !defined _WIN64 && !defined __amd64__
+ /* Returned complex doubles require a hidden first parameter where the
+ * data is stored, which is popped by the calling code. */
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mbr_ct->pointers && mbr_ct->type == COMPLEX_DOUBLE_TYPE) {
+ /* we can allocate more space for arguments as long as no add_*
+ * function has been called yet, mbr_ct will be added as an upvalue in
+ * the return processing later */
+ dasm_put(Dst, 1257, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ add_pointer(Dst, ct, ®);
+ }
+ lua_pop(L, 1);
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, (int) i);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1281, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals), i);
+ add_pointer(Dst, ct, ®);
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1301, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals), i);
+ add_pointer(Dst, ct, ®);
+ break;
+
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1321, (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals), i);
+ add_int(Dst, ct, ®, 0);
+ break;
+
+ case INT8_TYPE:
+ dasm_put(Dst, 1341, i);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1353);
+ } else {
+ dasm_put(Dst, 1357);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT16_TYPE:
+ dasm_put(Dst, 1341, i);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1361);
+ } else {
+ dasm_put(Dst, 1365);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case BOOL_TYPE:
+ dasm_put(Dst, 1369, i);
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT32_TYPE:
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1391, i);
+ } else {
+ dasm_put(Dst, 1341, i);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INTPTR_TYPE:
+ dasm_put(Dst, 1403, i);
+ add_pointer(Dst, ct, ®);
+ lua_pop(L, 1);
+ break;
+
+ case INT64_TYPE:
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1415, i);
+ } else {
+ dasm_put(Dst, 1427, i);
+ }
+ add_int(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case DOUBLE_TYPE:
+ dasm_put(Dst, 1439, i);
+ add_float(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored (this is popped by the called
+ * function) */
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1451, i);
+ add_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 1463);
+ add_float(Dst, ct, ®, 1);
+#else
+ dasm_put(Dst, 1469, reg.off, i);
+ reg.off += 16;
+#endif
+ lua_pop(L, 1);
+ break;
+
+ case FLOAT_TYPE:
+ dasm_put(Dst, 1439, i);
+ add_float(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1495, i);
+ /* complex floats are two floats packed into a double */
+ add_float(Dst, ct, ®, 1);
+#else
+ /* returned complex floats use eax and edx */
+ dasm_put(Dst, 1507, i);
+ add_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 1525);
+ add_float(Dst, ct, ®, 0);
+#endif
+ lua_pop(L, 1);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call arg type");
+ }
+ }
+ }
+
+ if (ct->has_var_arg) {
+#ifdef _WIN64
+ if (reg.regs < MAX_REGISTERS(ct)) {
+ assert(reg.regs == nargs);
+ dasm_put(Dst, 1532, MAX_REGISTERS(ct), 32 + 8*MAX_REGISTERS(ct), MAX_REGISTERS(ct)+1, 32 + 8*(reg.regs), MAX_REGISTERS(ct), nargs+1, 32 + 8*(reg.regs), nargs+1);
+ } else {
+ dasm_put(Dst, 1623, reg.off, nargs+1);
+ }
+
+ for (i = nargs; i < MAX_REGISTERS(ct); i++) {
+ reg.is_int[i] = reg.is_float[i] = 1;
+ }
+ reg.regs = MAX_REGISTERS(ct);
+#elif defined __amd64__
+ if (reg.floats < MAX_FLOAT_REGISTERS(ct)) {
+ }
+
+ if (reg.ints < MAX_INT_REGISTERS(ct)) {
+ }
+
+
+ reg.floats = MAX_FLOAT_REGISTERS(ct);
+ reg.ints = MAX_INT_REGISTERS(ct);
+#else
+#endif
+ }
+
+ dasm_put(Dst, 1648, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32));
+
+ /* remove the stack space to call local functions */
+ dasm_put(Dst, 1662);
+
+#ifdef _WIN64
+ switch (reg.regs) {
+ case 4:
+ if (reg.is_float[3]) {
+ dasm_put(Dst, 1667, 8*3);
+ }
+ if (reg.is_int[3]) {
+ dasm_put(Dst, 1676, 8*3);
+ }
+ case 3:
+ if (reg.is_float[2]) {
+ dasm_put(Dst, 1683, 8*2);
+ }
+ if (reg.is_int[2]) {
+ dasm_put(Dst, 1692, 8*2);
+ }
+ case 2:
+ if (reg.is_float[1]) {
+ dasm_put(Dst, 1699, 8*1);
+ }
+ if (reg.is_int[1]) {
+ dasm_put(Dst, 1708, 8*1);
+ }
+ case 1:
+ if (reg.is_float[0]) {
+ dasm_put(Dst, 1715);
+ }
+ if (reg.is_int[0]) {
+ dasm_put(Dst, 1722);
+ }
+ case 0:
+ break;
+ }
+
+ /* don't remove the space for the registers as we need 32 bytes of register overflow space */
+ assert(REGISTER_STACK_SPACE(ct) == 32);
+
+#elif defined __amd64__
+ switch (reg.floats) {
+ case 8:
+ case 7:
+ case 6:
+ case 5:
+ case 4:
+ case 3:
+ case 2:
+ case 1:
+ case 0:
+ break;
+ }
+
+ switch (reg.ints) {
+ case 6:
+ case 5:
+ case 4:
+ case 3:
+ case 2:
+ case 1:
+ case 0:
+ break;
+ }
+
+#else
+ if (ct->calling_convention == FAST_CALL) {
+ switch (reg.ints) {
+ case 2:
+ case 1:
+ case 0:
+ break;
+ }
+
+ }
+#endif
+
+#ifdef __amd64__
+ if (ct->has_var_arg) {
+ /* al stores an upper limit on the number of float register, note that
+ * its allowed to be more than the actual number of float registers used as
+ * long as its 0-8 */
+ }
+#endif
+
+ dasm_put(Dst, 1727);
+
+ /* note on windows X86 the stack may be only aligned to 4 (stdcall will
+ * have popped a multiple of 4 bytes), but we don't need 16 byte alignment on
+ * that platform
+ */
+
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers || mbr_ct->type == INTPTR_TYPE) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1737, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals));
+
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1737, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32), lua_upvalueindex(num_upvals));
+ break;
+
+ case INT64_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1780, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1826, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1873, (unsigned int)((uintptr_t)(perr)), (unsigned int)(((uintptr_t)(perr))>>32), (unsigned int)((uintptr_t)(mbr_ct)), (unsigned int)(((uintptr_t)(mbr_ct))>>32));
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1935);
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1940);
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1353);
+ } else {
+ dasm_put(Dst, 1357);
+ }
+ dasm_put(Dst, 1945);
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1361);
+ } else {
+ dasm_put(Dst, 1365);
+ }
+ dasm_put(Dst, 1945);
+ break;
+
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1950);
+ } else {
+ dasm_put(Dst, 1945);
+ }
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1955);
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1960);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call return type");
+ }
+ }
+
+ assert(lua_gettop(L) == top + num_upvals);
+ {
+ cfunction f = compile(Dst, L, func, LUA_NOREF);
+ /* add a callback as an upval so that the jitted code gets cleaned up when
+ * the function gets gc'd */
+ push_callback(L, f);
+ lua_pushcclosure(L, (lua_CFunction) f, num_upvals+1);
+ }
+}
+
diff --git a/plugins/MirLua/Modules/luaffi/src/call_x86.dasc b/plugins/MirLua/Modules/luaffi/src/call_x86.dasc new file mode 100644 index 0000000000..fa8271a2a1 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/call_x86.dasc @@ -0,0 +1,1594 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+|.if X64
+|.arch x64
+|.else
+|.arch x86
+|.endif
+
+|.actionlist build_actionlist
+|.globalnames globnames
+|.externnames extnames
+
+|.if not X64
+|.define RET_H, edx // for int64_t returns
+|.define RET_L, eax
+|.endif
+
+|.if X64WIN
+|
+|.macro call_rrrp, func, arg0, arg1, arg2, arg3
+| mov64 r9, arg3
+| mov r8, arg2
+| mov rdx, arg1
+| mov rcx, arg0
+| call func
+|.endmacro
+|.macro call_rrrr, func, arg0, arg1, arg2, arg3
+| mov r9, arg3
+| mov r8, arg2
+| mov rdx, arg1
+| mov rcx, arg0
+| call func
+|.endmacro
+|
+|.macro call_rrp, func, arg0, arg1, arg2
+| mov64 r8, arg2
+| mov rdx, arg1
+| mov rcx, arg0
+| call func
+|.endmacro
+|.macro call_rrr, func, arg0, arg1, arg2
+| mov r8, arg2
+| mov rdx, arg1
+| mov rcx, arg0
+| call func
+|.endmacro
+|
+|.macro call_rp, func, arg0, arg1
+| mov64 rdx, arg1
+| mov rcx, arg0
+| call func
+|.endmacro
+|.macro call_rr, func, arg0, arg1
+| mov rdx, arg1
+| mov rcx, arg0
+| call func
+|.endmacro
+|
+|.macro call_r, func, arg0
+| mov rcx, arg0
+| call func
+|.endmacro
+|
+|.elif X64
+|
+| // the 5 and 6 arg forms are only used on posix x64
+|.macro call_rrrrrr, func, arg0, arg1, arg2, arg3, arg4, arg5
+| mov r9, arg5
+| mov r8, arg4
+| mov rcx, arg3
+| mov rdx, arg2
+| mov rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|.macro call_rrrrr, func, arg0, arg1, arg2, arg3, arg4
+| mov r8, arg4
+| mov rcx, arg3
+| mov rdx, arg2
+| mov rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|
+|.macro call_rrrp, func, arg0, arg1, arg2, arg3
+| mov64 rcx, arg3
+| mov rdx, arg2
+| mov rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|.macro call_rrrr, func, arg0, arg1, arg2, arg3
+| mov rcx, arg3
+| mov rdx, arg2
+| mov rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|
+|.macro call_rrp, func, arg0, arg1, arg2
+| mov64 rdx, arg2
+| mov rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|.macro call_rrr, func, arg0, arg1, arg2
+| mov rdx, arg2
+| mov rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|
+|.macro call_rp, func, arg0, arg1
+| mov64 rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|.macro call_rr, func, arg0, arg1
+| mov rsi, arg1
+| mov rdi, arg0
+| call func
+|.endmacro
+|
+|.macro call_r, func, arg0
+| mov rdi, arg0
+| call func
+|.endmacro
+|
+|.else
+| // define the 64bit registers to the 32 bit counterparts, so the common
+| // code can use r*x for all pointers
+|.define rax, eax
+|.define rcx, ecx
+|.define rdx, edx
+|.define rsp, esp
+|.define rbp, ebp
+|.define rdi, edi
+|.define rsi, esi
+|.define mov64, mov
+|
+|.macro call_rrrr, func, arg0, arg1, arg2, arg3
+| mov dword [rsp+12], arg3
+| mov dword [rsp+8], arg2
+| mov dword [rsp+4], arg1
+| mov dword [rsp], arg0
+| call func
+|.endmacro
+|.macro call_rrr, func, arg0, arg1, arg2
+| mov dword [rsp+8], arg2
+| mov dword [rsp+4], arg1
+| mov dword [rsp], arg0
+| call func
+|.endmacro
+|.macro call_rr, func, arg0, arg1
+| mov dword [rsp+4], arg1
+| mov dword [rsp], arg0
+| call func
+|.endmacro
+|.macro call_r, func, arg0
+| mov dword [rsp], arg0
+| call func
+|.endmacro
+|
+|.define call_rrrp, call_rrrr
+|.define call_rrp, call_rrr
+|.define call_rp, call_rr
+|
+|.endif
+
+#if defined _WIN64 || defined __amd64__
+#define JUMP_SIZE 14
+#else
+#define JUMP_SIZE 4
+#endif
+
+#define MIN_BRANCH INT32_MIN
+#define MAX_BRANCH INT32_MAX
+#define BRANCH_OFF 4
+
+static void compile_extern_jump(struct jit* jit, lua_State* L, cfunction func, uint8_t* code)
+{
+ /* The jump code is the function pointer followed by a stub to call the
+ * function pointer. The stub exists in 64 bit so we can jump to functions
+ * with an offset greater than 2 GB.
+ *
+ * Note we have to manually set this up since there are commands buffered
+ * in the jit state and dynasm doesn't support rip relative addressing.
+ *
+ * eg on 64 bit:
+ * 0-8: function ptr
+ * 8-14: jmp aword [rip-14]
+ *
+ * for 32 bit we only set the function ptr as it can always fit in a 32
+ * bit displacement
+ */
+#if defined _WIN64 || defined __amd64__
+ *(cfunction*) code = func;
+ code[8] = 0xFF; /* FF /4 operand for jmp */
+ code[9] = 0x25; /* RIP displacement */
+ *(int32_t*) &code[10] = -14;
+#else
+ *(cfunction*) code = func;
+#endif
+}
+
+void compile_globals(struct jit* jit, lua_State* L)
+{
+ struct jit* Dst = jit;
+ int* perr = &jit->last_errno;
+ dasm_setup(Dst, build_actionlist);
+
+ /* Note: since the return code uses EBP to reset the stack pointer, we
+ * don't have to track the amount of stack space used. It also means we
+ * can handle stdcall and cdecl with the same code.
+ */
+
+ /* Note the various call_* functions want 32 bytes of 16 byte aligned
+ * stack
+ */
+
+ |.if X64
+ |.define L_ARG, r12
+ |.define TOP, r13
+ |.else
+ |.define L_ARG, rdi
+ |.define TOP, rsi
+ |.endif
+
+ |.macro epilog
+ |.if X64
+ | mov TOP, [rbp-16]
+ | mov L_ARG, [rbp-8]
+ |.else
+ | mov TOP, [rbp-8]
+ | mov L_ARG, [rbp-4]
+ |.endif
+ | mov rsp, rbp
+ | pop rbp
+ | ret
+ |.endmacro
+
+ |.macro get_errno // note trashes registers
+ | call extern GetLastError
+ | mov64 rcx, perr
+ | mov dword [rcx], eax
+ |.endmacro
+
+ /* the general idea for the return functions is:
+ * 1) Save return value on stack
+ * 2) Call get_errno (this trashes the registers hence #1)
+ * 3) Unpack return value from stack
+ * 4) Call lua push function
+ * 5) Set eax to number of returned args (0 or 1)
+ * 6) Call return which pops our stack frame
+ */
+
+ |->lua_return_arg:
+ | mov eax, 1
+ | epilog
+
+ |->lua_return_void:
+ | get_errno
+ | mov eax, 0
+ | epilog
+
+ |->lua_return_double:
+ |.if X64
+ | movq qword [rsp+32], xmm0
+ |.else
+ | fstp qword [rsp+4] // note get_errno doesn't require any stack on x86
+ |.endif
+ |
+ | get_errno
+ |
+ |.if X64WIN
+ | movq xmm1, qword [rsp+32]
+ | mov rcx, L_ARG
+ |.elif X64
+ | movq xmm0, qword [rsp+32]
+ | mov rdi, L_ARG
+ |.else
+ | mov [rsp], L_ARG
+ |.endif
+ | call extern lua_pushnumber
+ | jmp ->lua_return_arg
+
+ |->lua_return_bool:
+ | movzx eax, al
+ | mov [rsp+32], eax
+ | get_errno
+ | mov eax, [rsp+32]
+ | call_rr extern lua_pushboolean, L_ARG, rax
+ | jmp ->lua_return_arg
+
+ |->lua_return_int:
+ | mov [rsp+32], eax
+ | get_errno
+ | mov eax, [rsp+32]
+ | call_rr extern push_int, L_ARG, rax
+ | jmp ->lua_return_arg
+
+ |->lua_return_uint:
+ | mov [rsp+32], eax
+ | get_errno
+ | mov eax, [rsp+32]
+ | call_rr extern push_uint, L_ARG, rax
+ | jmp ->lua_return_arg
+
+ |->too_few_arguments:
+ | mov ax, 0
+ | call_rp extern luaL_error, L_ARG, &"too few arguments"
+
+ |->too_many_arguments:
+ | mov ax, 0
+ | call_rp extern luaL_error, L_ARG, &"too many arguments"
+
+ |->save_registers:
+ | // use rbp relative so we store values in the outer stack frame
+ |.if X64WIN
+ | // use the provided shadow space for int registers above prev rbp and
+ | // return address
+ | mov [rbp+16], rcx
+ | mov [rbp+24], rdx
+ | mov [rbp+32], r8
+ | mov [rbp+40], r9
+ | // use the extra space we added for float registers
+ | // -16 to store underneath previous value of L_ARG
+ | movq qword [rbp-16], xmm0
+ | movq qword [rbp-24], xmm1
+ | movq qword [rbp-32], xmm2
+ | movq qword [rbp-40], xmm3
+ |.elif X64
+ | movq qword [rbp-16], xmm0
+ | movq qword [rbp-24], xmm1
+ | movq qword [rbp-32], xmm2
+ | movq qword [rbp-40], xmm3
+ | movq qword [rbp-48], xmm4
+ | movq qword [rbp-56], xmm5
+ | movq qword [rbp-64], xmm6
+ | movq qword [rbp-72], xmm7
+ | mov [rbp-80], rdi
+ | mov [rbp-88], rsi
+ | mov [rbp-96], rdx
+ | mov [rbp-104], rcx
+ | mov [rbp-112], r8
+ | mov [rbp-120], r9
+ |.else
+ | // fastcall, -8 to store underneath previous value of L_ARG
+ | mov [rbp-8], ecx
+ | mov [rbp-12], edx
+ |.endif
+ | ret
+
+ compile(Dst, L, NULL, LUA_NOREF);
+}
+
+int x86_return_size(lua_State* L, int usr, const struct ctype* ct)
+{
+ int ret = 0;
+ const struct ctype* mt;
+
+ if (ct->calling_convention != C_CALL) {
+ size_t i;
+ size_t argn = lua_rawlen(L, usr);
+ for (i = 1; i <= argn; i++) {
+ lua_rawgeti(L, usr, (int) i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ ret += sizeof(void*);
+ } else {
+ switch (mt->type) {
+ case DOUBLE_TYPE:
+ case COMPLEX_FLOAT_TYPE:
+ case INT64_TYPE:
+ ret += 8;
+ break;
+ case COMPLEX_DOUBLE_TYPE:
+ ret += 16;
+ break;
+ case INTPTR_TYPE:
+ ret += sizeof(intptr_t);
+ break;
+ case FUNCTION_PTR_TYPE:
+ ret += sizeof(cfunction);
+ break;
+ case BOOL_TYPE:
+ case FLOAT_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ ret += 4;
+ break;
+ default:
+ return luaL_error(L, "NYI - argument type");
+ }
+ }
+
+ lua_pop(L, 1);
+ }
+ }
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ ret += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#endif
+
+ return ret;
+}
+
+#ifdef _WIN64
+#define MAX_REGISTERS(ct) 4 /* rcx, rdx, r8, r9 */
+
+#elif defined __amd64__
+#define MAX_INT_REGISTERS(ct) 6 /* rdi, rsi, rdx, rcx, r8, r9 */
+#define MAX_FLOAT_REGISTERS(ct) 8 /* xmm0-7 */
+
+#else
+#define MAX_INT_REGISTERS(ct) ((ct)->calling_convention == FAST_CALL ? 2 /* ecx, edx */ : 0)
+#define MAX_FLOAT_REGISTERS(ct) 0
+#endif
+
+struct reg_alloc {
+#ifdef _WIN64
+ int regs;
+ int is_float[4];
+ int is_int[4];
+#else
+ int floats;
+ int ints;
+#endif
+ int off;
+};
+
+#ifdef _WIN64
+#define REGISTER_STACK_SPACE(ct) (4*8)
+#elif defined __amd64__
+#define REGISTER_STACK_SPACE(ct) (14*8)
+#else
+#define REGISTER_STACK_SPACE(ct) ALIGN_UP(((ct)->calling_convention == FAST_CALL ? 2*4 : 0), 15)
+#endif
+
+/* Fastcall:
+ * Uses ecx, edx as first two int registers
+ * Everything else on stack (include 64bit ints)
+ * No overflow stack space
+ * Pops the stack before returning
+ * Returns int in eax, float in ST0
+ * We use the same register allocation logic as posix x64 with 2 int regs and 0 float regs
+ */
+
+static void get_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+ /* grab the register from the shadow space */
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ | mov rcx, [rbp + 16 + 8*reg->regs]
+ reg->regs++;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ | mov rcx, [rbp - 80 - 8*reg->ints]
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ | mov ecx, [rbp - 8 - 4*reg->ints]
+ reg->ints++;
+ }
+#endif
+ else if (is_int64) {
+ |.if X64
+ | mov rcx, [rbp + reg->off]
+ |.else
+ | mov rcx, [rbp + reg->off]
+ | mov rdx, [rbp + reg->off + 4]
+ |.endif
+ reg->off += 8;
+ } else {
+ | mov ecx, [rbp + reg->off]
+ reg->off += 4;
+ }
+}
+
+static void add_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ | mov [rsp + 32 + 8*(reg->regs)], rax
+ reg->is_int[reg->regs++] = 1;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ | mov [rsp + 32 + 8*reg->ints], rax
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ | mov [rsp + 32 + 4*reg->ints], rax
+ reg->ints++;
+ }
+#endif
+
+ else if (is_int64) {
+ |.if X64
+ | mov [rsp + reg->off], rax
+ |.else
+ | mov [rsp + reg->off], RET_L
+ | mov [rsp + reg->off + 4], RET_H
+ |.endif
+ reg->off += 8;
+ } else {
+ | mov [rsp+reg->off], eax
+ reg->off += 4;
+ }
+}
+
+static void get_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ | fld qword [rbp + reg->off]
+ reg->off += 8;
+ } else {
+ | fld dword [rbp + reg->off]
+ reg->off += 4;
+ }
+#else
+ int off;
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ off = -16 - 8*reg->regs;
+ reg->regs++;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ off = -16 - 8*reg->floats;
+ reg->floats++;
+ }
+#endif
+ else {
+ off = reg->off;
+ reg->off += is_double ? 8 : 4;
+ }
+
+ if (is_double) {
+ | movq xmm0, qword [rbp + off]
+ } else {
+ | cvtss2sd xmm0, dword [rbp + off]
+ }
+#endif
+}
+
+static void add_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ | fstp qword [rsp + reg->off]
+ reg->off += 8;
+ } else {
+ | fstp dword [rsp + reg->off]
+ reg->off += 4;
+ }
+#else
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ if (is_double) {
+ | movq qword [rsp + 32 + 8*(reg->regs)], xmm0
+ } else {
+ | cvtsd2ss xmm0, xmm0
+ | movq qword [rsp + 32 + 8*(reg->regs)], xmm0
+ }
+ reg->is_float[reg->regs++] = 1;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ if (is_double) {
+ | movq qword [rsp + 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats)], xmm0
+ } else {
+ | cvtsd2ss xmm0, xmm0
+ | movq qword [rsp + 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats)], xmm0
+ }
+ reg->floats++;
+ }
+#endif
+
+ else if (is_double) {
+ | movq qword [rsp + reg->off], xmm0
+ reg->off += 8;
+ } else {
+ | cvtsd2ss xmm0, xmm0
+ | movd dword [rsp + reg->off], xmm0
+ reg->off += 4;
+ }
+#endif
+}
+
+#if defined _WIN64 || defined __amd64__
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 1)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 1)
+#else
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 0)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 0)
+#endif
+
+cfunction compile_callback(lua_State* L, int fidx, int ct_usr, const struct ctype* ct)
+{
+ int i, nargs;
+ cfunction* pf;
+ struct ctype ct2 = *ct;
+ const struct ctype* mt;
+ struct reg_alloc reg;
+ int num_upvals = 0;
+ int top = lua_gettop(L);
+ struct jit* Dst = get_jit(L);
+ int ref;
+ int hidden_arg_off = 0;
+
+ ct_usr = lua_absindex(L, ct_usr);
+ fidx = lua_absindex(L, fidx);
+
+ assert(lua_isnil(L, fidx) || lua_isfunction(L, fidx));
+
+ memset(®, 0, sizeof(reg));
+#ifdef _WIN64
+ reg.off = 16 + REGISTER_STACK_SPACE(ct); /* stack registers are above the shadow space */
+#elif __amd64__
+ reg.off = 16;
+#else
+ reg.off = 8;
+#endif
+
+ dasm_setup(Dst, build_actionlist);
+
+ // add a table to store ctype and function upvalues
+ // callback_set assumes the first value is the lua function
+ nargs = (int) lua_rawlen(L, ct_usr);
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ if (ct->has_var_arg) {
+ luaL_error(L, "can't create callbacks with varargs");
+ }
+
+ // setup a stack frame to hold args for the call into lua_call
+
+ | push rbp
+ | mov rbp, rsp
+ | push L_ARG
+ | // stack is 4 or 8 (mod 16) (L_ARG, rbp, rip)
+ |.if X64
+ | // 8 to realign, 16 for return vars, 32 for local calls, rest to save registers
+ | sub rsp, 8 + 16 + 32 + REGISTER_STACK_SPACE(ct)
+ | call ->save_registers
+ |.else
+ | // 4 to realign, 16 for return vars, 32 for local calls, rest to save registers
+ | sub rsp, 4 + 16 + 32 + REGISTER_STACK_SPACE(ct)
+ if (ct->calling_convention == FAST_CALL) {
+ | call ->save_registers
+ }
+ |.endif
+
+ // hardcode the lua_State* value into the assembly
+ | mov64 L_ARG, L
+
+ /* get the upval table */
+ | call_rrr extern lua_rawgeti, L_ARG, LUA_REGISTRYINDEX, ref
+
+ /* get the lua function */
+ lua_pushvalue(L, fidx);
+ lua_rawseti(L, -2, ++num_upvals);
+ assert(num_upvals == CALLBACK_FUNC_USR_IDX);
+ | call_rrr extern lua_rawgeti, L_ARG, -1, num_upvals
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ hidden_arg_off = reg.off;
+ reg.off += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#else
+ (void) hidden_arg_off;
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ /* on the lua stack in the callback:
+ * upval tbl, lua func, i-1 args
+ */
+ | call_rrr extern lua_rawgeti, L_ARG, -i-1, num_upvals-1
+ | call_rrp extern push_cdata, L_ARG, -1, mt
+ get_pointer(Dst, ct, ®);
+ | mov [rax], rcx
+ | call_rr, extern lua_remove, L_ARG, -2
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ | call_rrp extern push_cdata, L_ARG, 0, mt
+ get_int(Dst, ct, ®, 1);
+ |.if X64
+ | mov [rax], rcx
+ |.else
+ | mov [rax], ecx
+ | mov [rax+4], edx
+ |.endif
+ break;
+
+ case INTPTR_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ | call_rrp extern push_cdata, L_ARG, 0, mt
+ get_pointer(Dst, ct, ®);
+ | mov [rax], rcx
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if defined _WIN64 || defined __amd64__
+ /* complex floats are two floats packed into a double */
+ | call_rrp extern push_cdata, L_ARG, 0, mt
+ get_float(Dst, ct, ®, 1);
+ | movq qword [rax], xmm0
+#else
+ /* complex floats are real followed by imag on the stack */
+ | call_rrp extern push_cdata, L_ARG, 0, mt
+ get_float(Dst, ct, ®, 0);
+ | fstp dword [rax]
+ get_float(Dst, ct, ®, 0);
+ | fstp dword [rax+4]
+#endif
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+ | call_rrp extern push_cdata, L_ARG, 0, mt
+ /* real */
+ get_float(Dst, ct, ®, 1);
+ |.if X64
+ | movq qword [rax], xmm0
+ |.else
+ | fstp qword [rax]
+ |.endif
+ /* imag */
+ get_float(Dst, ct, ®, 1);
+ |.if X64
+ | movq qword [rax+8], xmm0
+ |.else
+ | fstp qword [rax+8]
+ |.endif
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ get_float(Dst, ct, ®, mt->type == DOUBLE_TYPE);
+ |.if X64WIN
+ | movq xmm1, xmm0
+ | mov rcx, L_ARG
+ |.elif X64
+ | // for 64bit xmm0 is already set
+ | mov rdi, L_ARG
+ |.else
+ | fstp qword [rsp+4]
+ | mov [rsp], L_ARG
+ |.endif
+ | call extern lua_pushnumber
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ | movzx ecx, cl
+ | call_rr extern lua_pushboolean, L_ARG, rcx
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ | movzx ecx, cl
+ } else {
+ | movsx ecx, cl
+ }
+ | call_rr extern push_int, L_ARG, rcx
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ | movzx ecx, cx
+ } else {
+ | movsx ecx, cx
+ }
+ | call_rr extern push_int, L_ARG, rcx
+ break;
+
+ case ENUM_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ | call_rr extern push_uint, L_ARG, rcx
+ } else {
+ | call_rr extern push_int, L_ARG, rcx
+ }
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback arg type");
+ }
+ }
+ }
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ | call_rrrp extern lua_callk, L_ARG, nargs, (mt->pointers || mt->type != VOID_TYPE) ? 1 : 0, 0
+
+ // Unpack the return argument if not "void", also clean-up the lua stack
+ // to remove the return argument and bind table. Use lua_settop rather
+ // than lua_pop as lua_pop is implemented as a macro.
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ | call_rrr extern lua_rawgeti, L_ARG, -2, num_upvals-1
+ | call_rrrp extern check_typed_pointer, L_ARG, -2, -1, mt
+ | mov [rsp+32], rax
+ | call_rr extern lua_settop, L_ARG, -4
+ | mov rax, [rsp+32]
+
+ } else {
+ switch (mt->type) {
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ | call_rrr extern lua_rawgeti, L_ARG, -2, num_upvals-1
+ | call_rrrp, extern check_enum, L_ARG, -2, -1, mt
+ | mov [rsp+32], eax
+ | call_rr extern lua_settop, L_ARG, -4
+ | mov eax, [rsp+32]
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ | call_rr extern lua_settop, L_ARG, -2
+ break;
+
+ case BOOL_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ if (mt->is_unsigned) {
+ | call_rr extern check_uint32, L_ARG, -1
+ } else {
+ | call_rr extern check_int32, L_ARG, -1
+ }
+ | mov [rsp+32], eax
+ | call_rr extern lua_settop, L_ARG, -3
+ | mov eax, [rsp+32]
+ break;
+
+ case INT64_TYPE:
+ lua_pop(L, 1);
+
+ if (mt->is_unsigned) {
+ | call_rr extern check_uint64, L_ARG, -1
+ } else {
+ | call_rr extern check_int64, L_ARG, -1
+ }
+
+ |.if X64
+ | mov [rsp+32], rax
+ |.else
+ | mov [rsp+32], RET_L
+ | mov [rsp+36], RET_H
+ |.endif
+ | call_rr extern lua_settop, L_ARG, -3
+ |.if X64
+ | mov rax, [rsp+32]
+ |.else
+ | mov RET_L, [rsp+32]
+ | mov RET_H, [rsp+36]
+ |.endif
+ break;
+
+ case INTPTR_TYPE:
+ lua_pop(L, 1);
+ | call_rr extern check_uintptr, L_ARG, -1
+ | mov [rsp+32], rax
+ | call_rr extern lua_settop, L_ARG, -3
+ | mov rax, [rsp+32]
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ | call_rr extern check_double, L_ARG, -1
+ |.if X64
+ | movq qword [rsp+32], xmm0
+ | call_rr extern lua_settop, L_ARG, -3
+ if (mt->type == FLOAT_TYPE) {
+ | cvtsd2ss xmm0, qword [rsp+32]
+ } else {
+ | movq xmm0, qword [rsp+32]
+ }
+ |.else
+ | fstp qword [rsp+32]
+ | call_rr extern lua_settop, L_ARG, -3
+ | fld qword [rsp+32]
+ |.endif
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit complex floats are two floats packed into a double,
+ * on 32 bit returned complex floats use eax and edx */
+ | call_rr extern check_complex_float, L_ARG, -1
+ |
+ |.if X64
+ | movq qword [rsp+32], xmm0
+ |.else
+ | mov [rsp+32], eax
+ | mov [rsp+36], edx
+ |.endif
+ |
+ | call_rr extern lua_settop, L_ARG, -3
+ |
+ |.if X64
+ | movq xmm0, qword [rsp+32]
+ |.else
+ | mov eax, [rsp+32]
+ | mov edx, [rsp+36]
+ |.endif
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored which is popped by the called
+ * function */
+#if defined _WIN64 || defined __amd64__
+ | call_rr extern check_complex_double, L_ARG, -1
+ | movq qword [rsp+32], xmm0
+ | movq qword [rsp+40], xmm1
+ | call_rr extern lua_settop, L_ARG, -3
+ | movq xmm0, qword [rsp+32]
+ | movq xmm1, qword [rsp+40]
+#else
+ | mov rcx, [rbp + hidden_arg_off]
+ | call_rrr extern check_complex_double, rcx, L_ARG, -1
+ | sub rsp, 4 // to realign from popped hidden arg
+ | call_rr extern lua_settop, L_ARG, -3
+#endif
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback return type");
+ }
+ }
+
+ |.if X64
+ | mov L_ARG, [rbp-8]
+ |.else
+ | mov L_ARG, [rbp-4]
+ |.endif
+ | mov rsp, rbp
+ | pop rbp
+ | ret x86_return_size(L, ct_usr, ct)
+
+ lua_pop(L, 1); /* upval table - already in registry */
+ assert(lua_gettop(L) == top);
+
+ ct2.is_jitted = 1;
+ pf = (cfunction*) push_cdata(L, ct_usr, &ct2);
+ *pf = compile(Dst, L, NULL, ref);
+
+ assert(lua_gettop(L) == top + 1);
+
+ return *pf;
+}
+
+void compile_function(lua_State* L, cfunction func, int ct_usr, const struct ctype* ct)
+{
+ size_t i, nargs;
+ int num_upvals;
+ const struct ctype* mbr_ct;
+ struct jit* Dst = get_jit(L);
+ struct reg_alloc reg;
+ void* p;
+ int top = lua_gettop(L);
+ int* perr = &Dst->last_errno;
+
+ ct_usr = lua_absindex(L, ct_usr);
+
+ memset(®, 0, sizeof(reg));
+ reg.off = 32 + REGISTER_STACK_SPACE(ct);
+
+ dasm_setup(Dst, build_actionlist);
+
+ p = push_cdata(L, ct_usr, ct);
+ *(cfunction*) p = func;
+ num_upvals = 1;
+
+ nargs = lua_rawlen(L, ct_usr);
+
+ if (ct->calling_convention != C_CALL && ct->has_var_arg) {
+ luaL_error(L, "vararg is only allowed with the c calling convention");
+ }
+
+ | push rbp
+ | mov rbp, rsp
+ | push L_ARG
+ | push TOP
+ | // stack is 0 (mod 16) (TOP, L_ARG, rbp, rip)
+ |
+ | // Get L from our arguments and allocate some stack for lua_gettop
+ |.if X64WIN
+ | mov L_ARG, rcx
+ | sub rsp, 32 // shadow space
+ |.elif X64
+ | mov L_ARG, rdi
+ |.else
+ | mov L_ARG, [rbp + 8]
+ | sub rsp, 16
+ |.endif
+ |
+ | call_r extern lua_gettop, L_ARG
+ | mov TOP, rax // no need for movzxd rax, eax - high word guarenteed to be zero by x86-64
+ | cmp rax, nargs
+ | jl ->too_few_arguments
+
+ if (!ct->has_var_arg) {
+ | jg ->too_many_arguments
+ }
+
+ /* no need to zero extend eax returned by lua_gettop to rax as x86-64
+ * preguarentees that the upper 32 bits will be zero */
+ | shl rax, 4 // reserve 16 bytes per argument - this maintains the alignment mod 16
+ | sub rsp, rax
+ | sub rsp, 32 + REGISTER_STACK_SPACE(ct) // reserve an extra 32 to call local functions
+
+#if !defined _WIN64 && !defined __amd64__
+ /* Returned complex doubles require a hidden first parameter where the
+ * data is stored, which is popped by the calling code. */
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mbr_ct->pointers && mbr_ct->type == COMPLEX_DOUBLE_TYPE) {
+ /* we can allocate more space for arguments as long as no add_*
+ * function has been called yet, mbr_ct will be added as an upvalue in
+ * the return processing later */
+ | call_rrp extern push_cdata, L_ARG, 0, mbr_ct
+ | sub rsp, 16
+ add_pointer(Dst, ct, ®);
+ }
+ lua_pop(L, 1);
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, (int) i);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ | call_rrrp extern check_typed_pointer, L_ARG, i, lua_upvalueindex(num_upvals), mbr_ct
+ add_pointer(Dst, ct, ®);
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ | call_rrrp extern check_typed_cfunction, L_ARG, i, lua_upvalueindex(num_upvals), mbr_ct
+ add_pointer(Dst, ct, ®);
+ break;
+
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ | call_rrrp, extern check_enum, L_ARG, i, lua_upvalueindex(num_upvals), mbr_ct
+ add_int(Dst, ct, ®, 0);
+ break;
+
+ case INT8_TYPE:
+ | call_rr extern check_int32, L_ARG, i
+ if (mbr_ct->is_unsigned) {
+ | movzx eax, al
+ } else {
+ | movsx eax, al
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT16_TYPE:
+ | call_rr extern check_int32, L_ARG, i
+ if (mbr_ct->is_unsigned) {
+ | movzx eax, ax
+ } else {
+ | movsx eax, ax
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case BOOL_TYPE:
+ | call_rr extern check_int32, L_ARG, i
+ | cmp eax, 0
+ | setne al
+ | movzx eax, al
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT32_TYPE:
+ if (mbr_ct->is_unsigned) {
+ | call_rr extern check_uint32, L_ARG, i
+ } else {
+ | call_rr extern check_int32, L_ARG, i
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INTPTR_TYPE:
+ | call_rr extern check_uintptr, L_ARG, i
+ add_pointer(Dst, ct, ®);
+ lua_pop(L, 1);
+ break;
+
+ case INT64_TYPE:
+ if (mbr_ct->is_unsigned) {
+ | call_rr extern check_uint64, L_ARG, i
+ } else {
+ | call_rr extern check_int64, L_ARG, i
+ }
+ add_int(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case DOUBLE_TYPE:
+ | call_rr extern check_double, L_ARG, i
+ add_float(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored (this is popped by the called
+ * function) */
+#if defined _WIN64 || defined __amd64__
+ | call_rr extern check_complex_double, L_ARG, i
+ add_float(Dst, ct, ®, 1);
+ | movq xmm0, xmm1
+ add_float(Dst, ct, ®, 1);
+#else
+ | lea rax, [rsp+reg.off]
+ | sub rsp, 4
+ | call_rrr extern check_complex_double, rax, L_ARG, i
+ reg.off += 16;
+#endif
+ lua_pop(L, 1);
+ break;
+
+ case FLOAT_TYPE:
+ | call_rr extern check_double, L_ARG, i
+ add_float(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+#if defined _WIN64 || defined __amd64__
+ | call_rr extern check_complex_float, L_ARG, i
+ /* complex floats are two floats packed into a double */
+ add_float(Dst, ct, ®, 1);
+#else
+ /* returned complex floats use eax and edx */
+ | call_rr extern check_complex_float, L_ARG, i
+ | mov [rsp], eax
+ | fld dword [rsp]
+ add_float(Dst, ct, ®, 0);
+ | mov [rsp], edx
+ | fld dword [rsp]
+ add_float(Dst, ct, ®, 0);
+#endif
+ lua_pop(L, 1);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call arg type");
+ }
+ }
+ }
+
+ if (ct->has_var_arg) {
+#ifdef _WIN64
+ |.if X64WIN
+ if (reg.regs < MAX_REGISTERS(ct)) {
+ assert(reg.regs == nargs);
+ | cmp TOP, MAX_REGISTERS(ct)
+ | jle >1
+ | // unpack onto stack
+ | mov rax, rsp
+ | add rax, 32 + 8*MAX_REGISTERS(ct)
+ | call_rrrr extern unpack_varargs_stack, L_ARG, MAX_REGISTERS(ct)+1, TOP, rax
+ | // unpack to registers
+ | mov rax, rsp
+ | add rax, 32 + 8*(reg.regs)
+ | call_rrrr extern unpack_varargs_reg, L_ARG, nargs+1, MAX_REGISTERS(ct), rax
+ | jmp >2
+ |1:
+ | // unpack just to registers
+ | mov rax, rsp
+ | add rax, 32 + 8*(reg.regs)
+ | call_rrrr extern unpack_varargs_reg, L_ARG, nargs+1, TOP, rax
+ |2:
+ } else {
+ | // unpack just to stack
+ | mov rax, rsp
+ | add rax, reg.off
+ | call_rrrr extern unpack_varargs_stack, L_ARG, nargs+1, TOP, rax
+ }
+
+ for (i = nargs; i < MAX_REGISTERS(ct); i++) {
+ reg.is_int[i] = reg.is_float[i] = 1;
+ }
+ reg.regs = MAX_REGISTERS(ct);
+#elif defined __amd64__
+ |.elif X64
+ if (reg.floats < MAX_FLOAT_REGISTERS(ct)) {
+ | mov rax, rsp
+ | add rax, 32 + 8*(MAX_INT_REGISTERS(ct) + reg.floats)
+ | call_rrrrr extern unpack_varargs_float, L_ARG, nargs+1, TOP, MAX_FLOAT_REGISTERS(ct) - reg.floats, rax
+ }
+
+ if (reg.ints < MAX_INT_REGISTERS(ct)) {
+ | mov rax, rsp
+ | add rax, 32 + 8*(reg.ints)
+ | call_rrrrr extern unpack_varargs_int, L_ARG, nargs+1, TOP, MAX_INT_REGISTERS(ct) - reg.ints, rax
+ }
+
+ | mov rax, rsp
+ | add rax, reg.off
+ | call_rrrrrr extern unpack_varargs_stack_skip, L_ARG, nargs+1, TOP, MAX_INT_REGISTERS(ct) - reg.ints, MAX_FLOAT_REGISTERS(ct) - reg.floats, rax
+
+ reg.floats = MAX_FLOAT_REGISTERS(ct);
+ reg.ints = MAX_INT_REGISTERS(ct);
+#else
+ |.else
+ | mov rax, rsp
+ | add rax, reg.off
+ | call_rrrr extern unpack_varargs_stack, L_ARG, nargs+1, TOP, rax
+ |.endif
+#endif
+ }
+
+ | mov64 rcx, perr
+ | mov eax, dword [rcx]
+ | call_r extern SetLastError, rax
+
+ /* remove the stack space to call local functions */
+ |.if X32WIN
+ | add rsp, 28 // SetLastError will have already popped 4
+ |.else
+ | add rsp, 32
+ |.endif
+
+#ifdef _WIN64
+ |.if X64WIN
+ switch (reg.regs) {
+ case 4:
+ if (reg.is_float[3]) {
+ | movq xmm3, qword [rsp + 8*3]
+ }
+ if (reg.is_int[3]) {
+ | mov r9, [rsp + 8*3]
+ }
+ case 3:
+ if (reg.is_float[2]) {
+ | movq xmm2, qword [rsp + 8*2]
+ }
+ if (reg.is_int[2]) {
+ | mov r8, [rsp + 8*2]
+ }
+ case 2:
+ if (reg.is_float[1]) {
+ | movq xmm1, qword [rsp + 8*1]
+ }
+ if (reg.is_int[1]) {
+ | mov rdx, [rsp + 8*1]
+ }
+ case 1:
+ if (reg.is_float[0]) {
+ | movq xmm0, qword [rsp]
+ }
+ if (reg.is_int[0]) {
+ | mov rcx, [rsp]
+ }
+ case 0:
+ break;
+ }
+
+ /* don't remove the space for the registers as we need 32 bytes of register overflow space */
+ assert(REGISTER_STACK_SPACE(ct) == 32);
+
+#elif defined __amd64__
+ |.elif X64
+ switch (reg.floats) {
+ case 8:
+ | movq xmm7, qword [rsp + 8*(MAX_INT_REGISTERS(ct)+7)]
+ case 7:
+ | movq xmm6, qword [rsp + 8*(MAX_INT_REGISTERS(ct)+6)]
+ case 6:
+ | movq xmm5, qword [rsp + 8*(MAX_INT_REGISTERS(ct)+5)]
+ case 5:
+ | movq xmm4, qword [rsp + 8*(MAX_INT_REGISTERS(ct)+4)]
+ case 4:
+ | movq xmm3, qword [rsp + 8*(MAX_INT_REGISTERS(ct)+3)]
+ case 3:
+ | movq xmm2, qword [rsp + 8*(MAX_INT_REGISTERS(ct)+2)]
+ case 2:
+ | movq xmm1, qword [rsp + 8*(MAX_INT_REGISTERS(ct)+1)]
+ case 1:
+ | movq xmm0, qword [rsp + 8*(MAX_INT_REGISTERS(ct))]
+ case 0:
+ break;
+ }
+
+ switch (reg.ints) {
+ case 6:
+ | mov r9, [rsp + 8*5]
+ case 5:
+ | mov r8, [rsp + 8*4]
+ case 4:
+ | mov rcx, [rsp + 8*3]
+ case 3:
+ | mov rdx, [rsp + 8*2]
+ case 2:
+ | mov rsi, [rsp + 8*1]
+ case 1:
+ | mov rdi, [rsp]
+ case 0:
+ break;
+ }
+
+ | add rsp, REGISTER_STACK_SPACE(ct)
+#else
+ |.else
+ if (ct->calling_convention == FAST_CALL) {
+ switch (reg.ints) {
+ case 2:
+ | mov edx, [rsp + 4]
+ case 1:
+ | mov ecx, [rsp]
+ case 0:
+ break;
+ }
+
+ | add rsp, REGISTER_STACK_SPACE(ct)
+ }
+ |.endif
+#endif
+
+#ifdef __amd64__
+ if (ct->has_var_arg) {
+ /* al stores an upper limit on the number of float register, note that
+ * its allowed to be more than the actual number of float registers used as
+ * long as its 0-8 */
+ |.if X64 and not X64WIN
+ | mov al, 8
+ |.endif
+ }
+#endif
+
+ | call extern FUNCTION
+ | sub rsp, 48 // 32 to be able to call local functions, 16 so we can store some local variables
+
+ /* note on windows X86 the stack may be only aligned to 4 (stdcall will
+ * have popped a multiple of 4 bytes), but we don't need 16 byte alignment on
+ * that platform
+ */
+
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers || mbr_ct->type == INTPTR_TYPE) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ | mov [rsp+32], rax // save the pointer
+ | get_errno
+ | call_rrp extern push_cdata, L_ARG, lua_upvalueindex(num_upvals), mbr_ct
+ | mov rcx, [rsp+32]
+ | mov [rax], rcx // *(void**) cdata = val
+ | jmp ->lua_return_arg
+
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ | mov [rsp+32], rax // save the function pointer
+ | get_errno
+ | call_rrp extern push_cdata, L_ARG, lua_upvalueindex(num_upvals), mbr_ct
+ | mov rcx, [rsp+32]
+ | mov [rax], rcx // *(cfunction**) cdata = val
+ | jmp ->lua_return_arg
+ break;
+
+ case INT64_TYPE:
+ num_upvals++;
+ | // save the return value
+ |.if X64
+ | mov [rsp+32], rax
+ |.else
+ | mov [rsp+36], edx // high
+ | mov [rsp+32], eax // low
+ |.endif
+ |
+ | get_errno
+ | call_rrp extern push_cdata, L_ARG, 0, mbr_ct
+ |
+ | // *(int64_t*) cdata = val
+ |.if X64
+ | mov rcx, [rsp+32]
+ | mov [rax], rcx
+ |.else
+ | mov rcx, [rsp+36]
+ | mov rdx, [rsp+32]
+ | mov [rax+4], rcx
+ | mov [rax], rdx
+ |.endif
+ |
+ | jmp ->lua_return_arg
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ num_upvals++;
+ |.if X64
+ | // complex floats are returned as two floats packed into xmm0
+ | movq qword [rsp+32], xmm0
+ |.else
+ | // complex floats are returned as floats in eax and edx
+ | mov [rsp+32], eax
+ | mov [rsp+36], edx
+ |.endif
+ |
+ | get_errno
+ | call_rrp extern push_cdata, L_ARG, 0, mbr_ct
+ |
+ | // ((complex_float*) cdata) = val
+ |.if X64
+ | mov rcx, [rsp+32]
+ | mov [rax], rcx
+ |.else
+ | mov ecx, [rsp+32]
+ | mov [rax], ecx
+ | mov ecx, [rsp+36]
+ | mov [rax+4], ecx
+ |.endif
+ |
+ | jmp ->lua_return_arg
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ num_upvals++;
+ |.if X64
+ | // complex doubles are returned as xmm0 and xmm1
+ | movq qword [rsp+40], xmm1
+ | movq qword [rsp+32], xmm0
+ |
+ | get_errno
+ | call_rrp extern push_cdata, L_ARG, 0, mbr_ct
+ |
+ | // ((complex_double*) cdata)->real = val0
+ | // ((complex_double*) cdata)->imag = val1
+ | mov rcx, [rsp+40]
+ | mov [rax+8], rcx
+ | mov rcx, [rsp+32]
+ | mov [rax], rcx
+ |
+ |.else
+ | // On 32 bit we have already handled this by pushing a new cdata
+ | // and handing the cdata ptr in as the hidden first param, but
+ | // still need to add mbr_ct as an upval as its used earlier.
+ | // Hidden param was popped by called function, we need to realign.
+ | sub rsp, 4
+ | get_errno
+ |.endif
+ |
+ | jmp ->lua_return_arg
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ | jmp ->lua_return_void
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ | jmp ->lua_return_bool
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ | movzx eax, al
+ } else {
+ | movsx eax, al
+ }
+ | jmp ->lua_return_int
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ | movzx eax, ax
+ } else {
+ | movsx eax, ax
+ }
+ | jmp ->lua_return_int
+ break;
+
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ | jmp ->lua_return_uint
+ } else {
+ | jmp ->lua_return_int
+ }
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ |.if X64
+ | cvtss2sd xmm0, xmm0
+ |.endif
+ | jmp ->lua_return_double
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ | jmp ->lua_return_double
+ break;
+
+ default:
+ luaL_error(L, "NYI: call return type");
+ }
+ }
+
+ assert(lua_gettop(L) == top + num_upvals);
+ {
+ cfunction f = compile(Dst, L, func, LUA_NOREF);
+ /* add a callback as an upval so that the jitted code gets cleaned up when
+ * the function gets gc'd */
+ push_callback(L, f);
+ lua_pushcclosure(L, (lua_CFunction) f, num_upvals+1);
+ }
+}
+
diff --git a/plugins/MirLua/Modules/luaffi/src/call_x86.h b/plugins/MirLua/Modules/luaffi/src/call_x86.h new file mode 100644 index 0000000000..982c8c884f --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/call_x86.h @@ -0,0 +1,1172 @@ +/*
+** This file has been pre-processed with DynASM.
+** http://luajit.org/dynasm.html
+** DynASM version 1.3.0, DynASM x86 version 1.3.0
+** DO NOT EDIT! The original file is in "call_x86.dasc".
+*/
+
+#if DASM_VERSION != 10300
+#error "Version mismatch between DynASM and included encoding engine"
+#endif
+
+/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+
+static const unsigned char build_actionlist[1803] = {
+ 248,10,184,1,0.0,0.0,0.0,139,117,252,248,139,125,252,252,137,252,236,93,195,
+ 255,248,11,232,251,1,0,185,237,137,1,184,0,0.0,0.0,0.0,139,117,252,248,139,
+ 125,252,252,137,252,236,93,195,255,248,12,221.0,92,36,4,232,251,1,0,185,237,
+ 137,1,137,60,36,232,251,1,1,252,233,244,10,255,248,13,15.0,182,192,137,68,
+ 36,32,232,251,1,0,185,237,137,1,139,68,36,32,137,68,36,4,137,60,36,232,251,
+ 1,2,252,233,244,10,255,248,14,137,68,36,32,232,251,1,0,185,237,137,1,139,
+ 68,36,32,137,68,36,4,137,60,36,232,251,1,3,252,233,244,10,255,248,15,137,
+ 68,36,32,232,251,1,0,185,237,137,1,139,68,36,32,137,68,36,4,137,60,36,232,
+ 251,1,4,252,233,244,10,255,248,16,102,184,0,0.0,199.0,68,36,4,237,137,60,
+ 36,232,251,1,5,255,248,17,102,184,0,0.0,199.0,68,36,4,237,137,60,36,232,251,
+ 1,5,255,248,18,137,77,252,248,137,85,252,244,195,255,139,141,233,255,139,
+ 141,233,139,149,233,255,137,132,253,36,233,255,137,132,253,36,233,137,148,
+ 253,36,233,255,221.0,133,233,255,217.0,133,233,255,252,243.0,15.0,126,133,
+ 233,255,252,243.0,15.0,90,133,233,255,221.0,156,253,36,233,255,217.0,156,
+ 253,36,233,255,102.0,15.0,214,132,253,36,233,255,252,242.0,15.0,90,192,102.0,
+ 15.0,214,132,253,36,233,255,252,242.0,15.0,90,192,102.0,15.0,126,132,253,
+ 36,233,255,85,137,229,87,129.0,252,236,239,255,232,244,18,255,191,237,255,
+ 199.0,68,36,8,237,199.0,68,36,4,237,137,60,36,232,251,1,6,255,199.0,68,36,
+ 8,237,199.0,68,36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232,251,
+ 1,6,255,199.0,68,36,8,237,199.0,68,36,4,237,137,60,36,232,251,1,6,199.0,68,
+ 36,8,237,199.0,68,36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232,
+ 251,1,7,255,137,8,199.0,68,36,4,252,254,252,255.0,252,255.0,252,255.0,137,
+ 60,36,232,251,1,8,255,199.0,68,36,8,237,199.0,68,36,4,0,0.0,0.0,0.0,137,60,
+ 36,232,251,1,7,255,137,8,137,80,4,255,137,8,255,102.0,15.0,214,0,255,217.0,
+ 24,255,217.0,88,4,255,221.0,24,255,221.0,88,8,255,221.0,92,36,4,137,60,36,
+ 232,251,1,1,255,15.0,182,201,137,76,36,4,137,60,36,232,251,1,2,255,15.0,182,
+ 201,255,15.0,190,201,255,137,76,36,4,137,60,36,232,251,1,3,255,15.0,183,201,
+ 255,15.0,191,201,255,137,76,36,4,137,60,36,232,251,1,4,255,199.0,68,36,12,
+ 0,0.0,0.0,0.0,199.0,68,36,8,237,199.0,68,36,4,237,137,60,36,232,251,1,9,255,
+ 199.0,68,36,8,237,199.0,68,36,4,252,254,252,255.0,252,255.0,252,255.0,137,
+ 60,36,232,251,1,6,199.0,68,36,12,237,199.0,68,36,8,252,255,252,255.0,252,
+ 255.0,252,255.0,199.0,68,36,4,252,254,252,255.0,252,255.0,252,255.0,137,60,
+ 36,232,251,1,10,137,68,36,32,199.0,68,36,4,252,252,252,255.0,252,255.0,252,
+ 255.0,137,60,36,232,251,1,11,139,68,36,32,255,199.0,68,36,8,237,199.0,68,
+ 36,4,252,254,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,6,199.0,68,
+ 36,12,237,199.0,68,36,8,252,255,252,255.0,252,255.0,252,255.0,199.0,68,36,
+ 4,252,254,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,12,137,68,36,
+ 32,199.0,68,36,4,252,252,252,255.0,252,255.0,252,255.0,137,60,36,232,251,
+ 1,11,139,68,36,32,255,199.0,68,36,4,252,254,252,255.0,252,255.0,252,255.0,
+ 137,60,36,232,251,1,11,255,199.0,68,36,4,252,255,252,255.0,252,255.0,252,
+ 255.0,137,60,36,232,251,1,13,255,199.0,68,36,4,252,255,252,255.0,252,255.0,
+ 252,255.0,137,60,36,232,251,1,14,255,137,68,36,32,199.0,68,36,4,252,253,252,
+ 255.0,252,255.0,252,255.0,137,60,36,232,251,1,11,139,68,36,32,255,199.0,68,
+ 36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,15,255,199.0,
+ 68,36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,16,255,
+ 137,68,36,32,137,84,36,36,199.0,68,36,4,252,253,252,255.0,252,255.0,252,255.0,
+ 137,60,36,232,251,1,11,139,68,36,32,139,84,36,36,255,199.0,68,36,4,252,255,
+ 252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,17,137,68,36,32,199.0,68,
+ 36,4,252,253,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,11,139,68,
+ 36,32,255,199.0,68,36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232,
+ 251,1,18,255,221.0,92,36,32,199.0,68,36,4,252,253,252,255.0,252,255.0,252,
+ 255.0,137,60,36,232,251,1,11,221.0,68,36,32,255,199.0,68,36,4,252,255,252,
+ 255.0,252,255.0,252,255.0,137,60,36,232,251,1,19,137,68,36,32,137,84,36,36,
+ 199.0,68,36,4,252,253,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,11,
+ 139,68,36,32,139,84,36,36,255,199.0,68,36,4,252,255,252,255.0,252,255.0,252,
+ 255.0,137,60,36,232,251,1,20,102.0,15.0,214,68,36,32,102.0,15.0,214,76,36,
+ 40,199.0,68,36,4,252,253,252,255.0,252,255.0,252,255.0,137,60,36,232,251,
+ 1,11,252,243.0,15.0,126,68,36,32,252,243.0,15.0,126,76,36,40,255,139,141,
+ 233,199.0,68,36,8,252,255,252,255.0,252,255.0,252,255.0,137,124,36,4,137,
+ 12,36,232,251,1,20,131.0,252,236,4,199.0,68,36,4,252,253,252,255.0,252,255.0,
+ 252,255.0,137,60,36,232,251,1,11,255,139,125,252,252,137,252,236,93,194,236,
+ 255,85,137,229,87,86,139,189,233,131.0,252,236,16,137,60,36,232,251,1,21,
+ 137,198,129.0,252,248,239,15.0,140,244,16,255,15.0,143,244,17,255,193.0,224,
+ 4,41,196,129.0,252,236,239,255,199.0,68,36,8,237,199.0,68,36,4,0,0.0,0.0,
+ 0.0,137,60,36,232,251,1,7,131.0,252,236,16,255,199.0,68,36,12,237,199.0,68,
+ 36,8,237,199.0,68,36,4,237,137,60,36,232,251,1,10,255,199.0,68,36,12,237,
+ 199.0,68,36,8,237,199.0,68,36,4,237,137,60,36,232,251,1,22,255,199.0,68,36,
+ 12,237,199.0,68,36,8,237,199.0,68,36,4,237,137,60,36,232,251,1,12,255,199.0,
+ 68,36,4,237,137,60,36,232,251,1,14,255,15.0,182,192,255,15.0,190,192,255,
+ 15.0,183,192,255,15.0,191,192,255,199.0,68,36,4,237,137,60,36,232,251,1,14,
+ 131.0,252,248,0,15.0,149.0,208,15.0,182,192,255,199.0,68,36,4,237,137,60,
+ 36,232,251,1,13,255,199.0,68,36,4,237,137,60,36,232,251,1,17,255,199.0,68,
+ 36,4,237,137,60,36,232,251,1,15,255,199.0,68,36,4,237,137,60,36,232,251,1,
+ 16,255,199.0,68,36,4,237,137,60,36,232,251,1,18,255,199.0,68,36,4,237,137,
+ 60,36,232,251,1,20,255,252,243.0,15.0,126,193,255,141,132,253,36,233,131.0,
+ 252,236,4,199.0,68,36,8,237,137,124,36,4,137,4,36,232,251,1,20,255,199.0,
+ 68,36,4,237,137,60,36,232,251,1,19,255,199.0,68,36,4,237,137,60,36,232,251,
+ 1,19,137,4,36,217.0,4,36,255,137,20,36,217.0,4,36,255,137,224,129.0,192,239,
+ 137,68,36,12,137,116,36,8,199.0,68,36,4,237,137,60,36,232,251,1,23,255,185,
+ 237,139,1,137,4,36,232,251,1,24,255,131.0,196,28,255,139,148,253,36,233,255,
+ 139,12,36,255,129.0,196,239,255,232,251,1,25,131.0,252,236,48,255,137,68,
+ 36,32,232,251,1,0,185,237,137,1,199.0,68,36,8,237,199.0,68,36,4,237,137,60,
+ 36,232,251,1,7,139,76,36,32,137,8,252,233,244,10,255,137,84,36,36,137,68,
+ 36,32,232,251,1,0,185,237,137,1,199.0,68,36,8,237,199.0,68,36,4,0,0.0,0.0,
+ 0.0,137,60,36,232,251,1,7,139,76,36,36,139,84,36,32,137,72,4,137,16,252,233,
+ 244,10,255,137,68,36,32,137,84,36,36,232,251,1,0,185,237,137,1,199.0,68,36,
+ 8,237,199.0,68,36,4,0,0.0,0.0,0.0,137,60,36,232,251,1,7,139,76,36,32,137,
+ 8,139,76,36,36,137,72,4,252,233,244,10,255,131.0,252,236,4,232,251,1,0,185,
+ 237,137,1,252,233,244,10,255,252,233,244,11,255,252,233,244,13,255,252,233,
+ 244,14,255,252,233,244,15,255,252,233,244,12,255
+};
+
+static const char *const globnames[] = {
+ "lua_return_arg",
+ "lua_return_void",
+ "lua_return_double",
+ "lua_return_bool",
+ "lua_return_int",
+ "lua_return_uint",
+ "too_few_arguments",
+ "too_many_arguments",
+ "save_registers",
+ (const char *)0
+};
+static const char *const extnames[] = {
+ "GetLastError",
+ "lua_pushnumber",
+ "lua_pushboolean",
+ "push_int",
+ "push_uint",
+ "luaL_error",
+ "lua_rawgeti",
+ "push_cdata",
+ "lua_remove",
+ "lua_callk",
+ "check_typed_pointer",
+ "lua_settop",
+ "check_enum",
+ "check_uint32",
+ "check_int32",
+ "check_uint64",
+ "check_int64",
+ "check_uintptr",
+ "check_double",
+ "check_complex_float",
+ "check_complex_double",
+ "lua_gettop",
+ "check_typed_cfunction",
+ "unpack_varargs_stack",
+ "SetLastError",
+ "FUNCTION",
+ (const char *)0
+};
+
+
+
+#if defined _WIN64 || defined __amd64__
+#define JUMP_SIZE 14
+#else
+#define JUMP_SIZE 4
+#endif
+
+#define MIN_BRANCH INT32_MIN
+#define MAX_BRANCH INT32_MAX
+#define BRANCH_OFF 4
+
+static void compile_extern_jump(struct jit* jit, lua_State* L, cfunction func, uint8_t* code)
+{
+ /* The jump code is the function pointer followed by a stub to call the
+ * function pointer. The stub exists in 64 bit so we can jump to functions
+ * with an offset greater than 2 GB.
+ *
+ * Note we have to manually set this up since there are commands buffered
+ * in the jit state and dynasm doesn't support rip relative addressing.
+ *
+ * eg on 64 bit:
+ * 0-8: function ptr
+ * 8-14: jmp aword [rip-14]
+ *
+ * for 32 bit we only set the function ptr as it can always fit in a 32
+ * bit displacement
+ */
+#if defined _WIN64 || defined __amd64__
+ *(cfunction*) code = func;
+ code[8] = 0xFF; /* FF /4 operand for jmp */
+ code[9] = 0x25; /* RIP displacement */
+ *(int32_t*) &code[10] = -14;
+#else
+ *(cfunction*) code = func;
+#endif
+}
+
+void compile_globals(struct jit* jit, lua_State* L)
+{
+ struct jit* Dst = jit;
+ int* perr = &jit->last_errno;
+ dasm_setup(Dst, build_actionlist);
+
+ /* Note: since the return code uses EBP to reset the stack pointer, we
+ * don't have to track the amount of stack space used. It also means we
+ * can handle stdcall and cdecl with the same code.
+ */
+
+ /* Note the various call_* functions want 32 bytes of 16 byte aligned
+ * stack
+ */
+
+
+
+
+ /* the general idea for the return functions is:
+ * 1) Save return value on stack
+ * 2) Call get_errno (this trashes the registers hence #1)
+ * 3) Unpack return value from stack
+ * 4) Call lua push function
+ * 5) Set eax to number of returned args (0 or 1)
+ * 6) Call return which pops our stack frame
+ */
+
+ dasm_put(Dst, 0);
+
+ dasm_put(Dst, 21, perr);
+
+ dasm_put(Dst, 50, perr);
+
+ dasm_put(Dst, 76, perr);
+
+ dasm_put(Dst, 113, perr);
+
+ dasm_put(Dst, 147, perr);
+
+ dasm_put(Dst, 181, (ptrdiff_t)("too few arguments"));
+
+ dasm_put(Dst, 200, (ptrdiff_t)("too many arguments"));
+
+ dasm_put(Dst, 219);
+
+ compile(Dst, L, NULL, LUA_NOREF);
+}
+
+int x86_return_size(lua_State* L, int usr, const struct ctype* ct)
+{
+ int ret = 0;
+ const struct ctype* mt;
+
+ if (ct->calling_convention != C_CALL) {
+ size_t i;
+ size_t argn = lua_rawlen(L, usr);
+ for (i = 1; i <= argn; i++) {
+ lua_rawgeti(L, usr, (int) i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ ret += sizeof(void*);
+ } else {
+ switch (mt->type) {
+ case DOUBLE_TYPE:
+ case COMPLEX_FLOAT_TYPE:
+ case INT64_TYPE:
+ ret += 8;
+ break;
+ case COMPLEX_DOUBLE_TYPE:
+ ret += 16;
+ break;
+ case INTPTR_TYPE:
+ ret += sizeof(intptr_t);
+ break;
+ case FUNCTION_PTR_TYPE:
+ ret += sizeof(cfunction);
+ break;
+ case BOOL_TYPE:
+ case FLOAT_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ ret += 4;
+ break;
+ default:
+ return luaL_error(L, "NYI - argument type");
+ }
+ }
+
+ lua_pop(L, 1);
+ }
+ }
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ ret += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#endif
+
+ return ret;
+}
+
+#ifdef _WIN64
+#define MAX_REGISTERS(ct) 4 /* rcx, rdx, r8, r9 */
+
+#elif defined __amd64__
+#define MAX_INT_REGISTERS(ct) 6 /* rdi, rsi, rdx, rcx, r8, r9 */
+#define MAX_FLOAT_REGISTERS(ct) 8 /* xmm0-7 */
+
+#else
+#define MAX_INT_REGISTERS(ct) ((ct)->calling_convention == FAST_CALL ? 2 /* ecx, edx */ : 0)
+#define MAX_FLOAT_REGISTERS(ct) 0
+#endif
+
+struct reg_alloc {
+#ifdef _WIN64
+ int regs;
+ int is_float[4];
+ int is_int[4];
+#else
+ int floats;
+ int ints;
+#endif
+ int off;
+};
+
+#ifdef _WIN64
+#define REGISTER_STACK_SPACE(ct) (4*8)
+#elif defined __amd64__
+#define REGISTER_STACK_SPACE(ct) (14*8)
+#else
+#define REGISTER_STACK_SPACE(ct) ALIGN_UP(((ct)->calling_convention == FAST_CALL ? 2*4 : 0), 15)
+#endif
+
+/* Fastcall:
+ * Uses ecx, edx as first two int registers
+ * Everything else on stack (include 64bit ints)
+ * No overflow stack space
+ * Pops the stack before returning
+ * Returns int in eax, float in ST0
+ * We use the same register allocation logic as posix x64 with 2 int regs and 0 float regs
+ */
+
+static void get_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+ /* grab the register from the shadow space */
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ dasm_put(Dst, 231, 16 + 8*reg->regs);
+ reg->regs++;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 231, - 80 - 8*reg->ints);
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 231, - 8 - 4*reg->ints);
+ reg->ints++;
+ }
+#endif
+ else if (is_int64) {
+ dasm_put(Dst, 235, reg->off, reg->off + 4);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 231, reg->off);
+ reg->off += 4;
+ }
+}
+
+static void add_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64)
+{
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ dasm_put(Dst, 242, 32 + 8*(reg->regs));
+ reg->is_int[reg->regs++] = 1;
+ }
+#elif __amd64__
+ if (reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 242, 32 + 8*reg->ints);
+ reg->ints++;
+ }
+#else
+ if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) {
+ dasm_put(Dst, 242, 32 + 4*reg->ints);
+ reg->ints++;
+ }
+#endif
+
+ else if (is_int64) {
+ dasm_put(Dst, 248, reg->off, reg->off + 4);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 242, reg->off);
+ reg->off += 4;
+ }
+}
+
+static void get_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ dasm_put(Dst, 259, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 263, reg->off);
+ reg->off += 4;
+ }
+#else
+ int off;
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ off = -16 - 8*reg->regs;
+ reg->regs++;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ off = -16 - 8*reg->floats;
+ reg->floats++;
+ }
+#endif
+ else {
+ off = reg->off;
+ reg->off += is_double ? 8 : 4;
+ }
+
+ if (is_double) {
+ dasm_put(Dst, 267, off);
+ } else {
+ dasm_put(Dst, 274, off);
+ }
+#endif
+}
+
+static void add_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double)
+{
+#if !defined _WIN64 && !defined __amd64__
+ assert(MAX_FLOAT_REGISTERS(ct) == 0);
+ if (is_double) {
+ dasm_put(Dst, 281, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 287, reg->off);
+ reg->off += 4;
+ }
+#else
+
+#ifdef _WIN64
+ if (reg->regs < MAX_REGISTERS(ct)) {
+ if (is_double) {
+ dasm_put(Dst, 293, 32 + 8*(reg->regs));
+ } else {
+ dasm_put(Dst, 301, 32 + 8*(reg->regs));
+ }
+ reg->is_float[reg->regs++] = 1;
+ }
+#else
+ if (reg->floats < MAX_FLOAT_REGISTERS(ct)) {
+ if (is_double) {
+ dasm_put(Dst, 293, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats));
+ } else {
+ dasm_put(Dst, 301, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats));
+ }
+ reg->floats++;
+ }
+#endif
+
+ else if (is_double) {
+ dasm_put(Dst, 293, reg->off);
+ reg->off += 8;
+ } else {
+ dasm_put(Dst, 314, reg->off);
+ reg->off += 4;
+ }
+#endif
+}
+
+#if defined _WIN64 || defined __amd64__
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 1)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 1)
+#else
+#define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 0)
+#define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 0)
+#endif
+
+cfunction compile_callback(lua_State* L, int fidx, int ct_usr, const struct ctype* ct)
+{
+ int i, nargs;
+ cfunction* pf;
+ struct ctype ct2 = *ct;
+ const struct ctype* mt;
+ struct reg_alloc reg;
+ int num_upvals = 0;
+ int top = lua_gettop(L);
+ struct jit* Dst = get_jit(L);
+ int ref;
+ int hidden_arg_off = 0;
+
+ ct_usr = lua_absindex(L, ct_usr);
+ fidx = lua_absindex(L, fidx);
+
+ assert(lua_isnil(L, fidx) || lua_isfunction(L, fidx));
+
+ memset(®, 0, sizeof(reg));
+#ifdef _WIN64
+ reg.off = 16 + REGISTER_STACK_SPACE(ct); /* stack registers are above the shadow space */
+#elif __amd64__
+ reg.off = 16;
+#else
+ reg.off = 8;
+#endif
+
+ dasm_setup(Dst, build_actionlist);
+
+ // add a table to store ctype and function upvalues
+ // callback_set assumes the first value is the lua function
+ nargs = (int) lua_rawlen(L, ct_usr);
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ if (ct->has_var_arg) {
+ luaL_error(L, "can't create callbacks with varargs");
+ }
+
+ // setup a stack frame to hold args for the call into lua_call
+
+ dasm_put(Dst, 327, 4 + 16 + 32 + REGISTER_STACK_SPACE(ct));
+ if (ct->calling_convention == FAST_CALL) {
+ dasm_put(Dst, 336);
+ }
+
+ // hardcode the lua_State* value into the assembly
+ dasm_put(Dst, 340, L);
+
+ /* get the upval table */
+ dasm_put(Dst, 343, ref, LUA_REGISTRYINDEX);
+
+ /* get the lua function */
+ lua_pushvalue(L, fidx);
+ lua_rawseti(L, -2, ++num_upvals);
+ assert(num_upvals == CALLBACK_FUNC_USR_IDX);
+ dasm_put(Dst, 361, num_upvals);
+
+#if !defined _WIN64 && !defined __amd64__
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mt->pointers && mt->type == COMPLEX_DOUBLE_TYPE) {
+ hidden_arg_off = reg.off;
+ reg.off += sizeof(void*);
+ }
+ lua_pop(L, 1);
+#else
+ (void) hidden_arg_off;
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, i);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ /* on the lua stack in the callback:
+ * upval tbl, lua func, i-1 args
+ */
+ dasm_put(Dst, 386, num_upvals-1, -i-1, mt);
+ get_pointer(Dst, ct, ®);
+ dasm_put(Dst, 428);
+ } else {
+ switch (mt->type) {
+ case INT64_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ dasm_put(Dst, 450, mt);
+ get_int(Dst, ct, ®, 1);
+ dasm_put(Dst, 471);
+ break;
+
+ case INTPTR_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* mt */
+ lua_pop(L, 1);
+ dasm_put(Dst, 450, mt);
+ get_pointer(Dst, ct, ®);
+ dasm_put(Dst, 477);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if defined _WIN64 || defined __amd64__
+ /* complex floats are two floats packed into a double */
+ dasm_put(Dst, 450, mt);
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 480);
+#else
+ /* complex floats are real followed by imag on the stack */
+ dasm_put(Dst, 450, mt);
+ get_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 485);
+ get_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 488);
+#endif
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 450, mt);
+ /* real */
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 492);
+ /* imag */
+ get_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 495);
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ get_float(Dst, ct, ®, mt->type == DOUBLE_TYPE);
+ dasm_put(Dst, 499);
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ dasm_put(Dst, 511);
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 526);
+ } else {
+ dasm_put(Dst, 530);
+ }
+ dasm_put(Dst, 534);
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 546);
+ } else {
+ dasm_put(Dst, 550);
+ }
+ dasm_put(Dst, 534);
+ break;
+
+ case ENUM_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ get_int(Dst, ct, ®, 0);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 554);
+ } else {
+ dasm_put(Dst, 534);
+ }
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback arg type");
+ }
+ }
+ }
+
+ lua_rawgeti(L, ct_usr, 0);
+ mt = (const struct ctype*) lua_touserdata(L, -1);
+
+ dasm_put(Dst, 566, (mt->pointers || mt->type != VOID_TYPE) ? 1 : 0, nargs);
+
+ // Unpack the return argument if not "void", also clean-up the lua stack
+ // to remove the return argument and bind table. Use lua_settop rather
+ // than lua_pop as lua_pop is implemented as a macro.
+ if (mt->pointers) {
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 592, num_upvals-1, mt);
+
+ } else {
+ switch (mt->type) {
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ lua_rawseti(L, -3, ++num_upvals); /* usr value */
+ lua_rawseti(L, -2, ++num_upvals); /* mt */
+ dasm_put(Dst, 680, num_upvals-1, mt);
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 768);
+ break;
+
+ case BOOL_TYPE:
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ lua_pop(L, 1);
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 788);
+ } else {
+ dasm_put(Dst, 808);
+ }
+ dasm_put(Dst, 828);
+ break;
+
+ case INT64_TYPE:
+ lua_pop(L, 1);
+
+ if (mt->is_unsigned) {
+ dasm_put(Dst, 856);
+ } else {
+ dasm_put(Dst, 876);
+ }
+
+ dasm_put(Dst, 896);
+ break;
+
+ case INTPTR_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 932);
+ break;
+
+ case FLOAT_TYPE:
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 979);
+ if (mt->type == FLOAT_TYPE) {
+ } else {
+ }
+ dasm_put(Dst, 999);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit complex floats are two floats packed into a double,
+ * on 32 bit returned complex floats use eax and edx */
+ dasm_put(Dst, 1027);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ lua_pop(L, 1);
+#if !defined HAVE_COMPLEX
+ luaL_error(L, "ffi lib compiled without complex number support");
+#endif
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored which is popped by the called
+ * function */
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1082);
+#else
+ dasm_put(Dst, 1147, hidden_arg_off);
+#endif
+ break;
+
+ default:
+ luaL_error(L, "NYI: callback return type");
+ }
+ }
+
+ dasm_put(Dst, 1197, x86_return_size(L, ct_usr, ct));
+
+ lua_pop(L, 1); /* upval table - already in registry */
+ assert(lua_gettop(L) == top);
+
+ ct2.is_jitted = 1;
+ pf = (cfunction*) push_cdata(L, ct_usr, &ct2);
+ *pf = compile(Dst, L, NULL, ref);
+
+ assert(lua_gettop(L) == top + 1);
+
+ return *pf;
+}
+
+void compile_function(lua_State* L, cfunction func, int ct_usr, const struct ctype* ct)
+{
+ size_t i, nargs;
+ int num_upvals;
+ const struct ctype* mbr_ct;
+ struct jit* Dst = get_jit(L);
+ struct reg_alloc reg;
+ void* p;
+ int top = lua_gettop(L);
+ int* perr = &Dst->last_errno;
+
+ ct_usr = lua_absindex(L, ct_usr);
+
+ memset(®, 0, sizeof(reg));
+ reg.off = 32 + REGISTER_STACK_SPACE(ct);
+
+ dasm_setup(Dst, build_actionlist);
+
+ p = push_cdata(L, ct_usr, ct);
+ *(cfunction*) p = func;
+ num_upvals = 1;
+
+ nargs = lua_rawlen(L, ct_usr);
+
+ if (ct->calling_convention != C_CALL && ct->has_var_arg) {
+ luaL_error(L, "vararg is only allowed with the c calling convention");
+ }
+
+ dasm_put(Dst, 1208, 8, nargs);
+
+ if (!ct->has_var_arg) {
+ dasm_put(Dst, 1238);
+ }
+
+ /* no need to zero extend eax returned by lua_gettop to rax as x86-64
+ * preguarentees that the upper 32 bits will be zero */
+ dasm_put(Dst, 1243, 32 + REGISTER_STACK_SPACE(ct));
+
+#if !defined _WIN64 && !defined __amd64__
+ /* Returned complex doubles require a hidden first parameter where the
+ * data is stored, which is popped by the calling code. */
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+ if (!mbr_ct->pointers && mbr_ct->type == COMPLEX_DOUBLE_TYPE) {
+ /* we can allocate more space for arguments as long as no add_*
+ * function has been called yet, mbr_ct will be added as an upvalue in
+ * the return processing later */
+ dasm_put(Dst, 1253, mbr_ct);
+ add_pointer(Dst, ct, ®);
+ }
+ lua_pop(L, 1);
+#endif
+
+ for (i = 1; i <= nargs; i++) {
+ lua_rawgeti(L, ct_usr, (int) i);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1278, mbr_ct, lua_upvalueindex(num_upvals), i);
+ add_pointer(Dst, ct, ®);
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1301, mbr_ct, lua_upvalueindex(num_upvals), i);
+ add_pointer(Dst, ct, ®);
+ break;
+
+ case ENUM_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1324, mbr_ct, lua_upvalueindex(num_upvals), i);
+ add_int(Dst, ct, ®, 0);
+ break;
+
+ case INT8_TYPE:
+ dasm_put(Dst, 1347, i);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1360);
+ } else {
+ dasm_put(Dst, 1364);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT16_TYPE:
+ dasm_put(Dst, 1347, i);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1368);
+ } else {
+ dasm_put(Dst, 1372);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case BOOL_TYPE:
+ dasm_put(Dst, 1376, i);
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INT32_TYPE:
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1399, i);
+ } else {
+ dasm_put(Dst, 1347, i);
+ }
+ add_int(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case INTPTR_TYPE:
+ dasm_put(Dst, 1412, i);
+ add_pointer(Dst, ct, ®);
+ lua_pop(L, 1);
+ break;
+
+ case INT64_TYPE:
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1425, i);
+ } else {
+ dasm_put(Dst, 1438, i);
+ }
+ add_int(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case DOUBLE_TYPE:
+ dasm_put(Dst, 1451, i);
+ add_float(Dst, ct, ®, 1);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit
+ * there is a hidden first parameter that points to 16 bytes where
+ * the returned arg is stored (this is popped by the called
+ * function) */
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1464, i);
+ add_float(Dst, ct, ®, 1);
+ dasm_put(Dst, 1477);
+ add_float(Dst, ct, ®, 1);
+#else
+ dasm_put(Dst, 1483, reg.off, i);
+ reg.off += 16;
+#endif
+ lua_pop(L, 1);
+ break;
+
+ case FLOAT_TYPE:
+ dasm_put(Dst, 1451, i);
+ add_float(Dst, ct, ®, 0);
+ lua_pop(L, 1);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+#if defined _WIN64 || defined __amd64__
+ dasm_put(Dst, 1509, i);
+ /* complex floats are two floats packed into a double */
+ add_float(Dst, ct, ®, 1);
+#else
+ /* returned complex floats use eax and edx */
+ dasm_put(Dst, 1522, i);
+ add_float(Dst, ct, ®, 0);
+ dasm_put(Dst, 1541);
+ add_float(Dst, ct, ®, 0);
+#endif
+ lua_pop(L, 1);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call arg type");
+ }
+ }
+ }
+
+ if (ct->has_var_arg) {
+#ifdef _WIN64
+ if (reg.regs < MAX_REGISTERS(ct)) {
+ assert(reg.regs == nargs);
+ } else {
+ }
+
+ for (i = nargs; i < MAX_REGISTERS(ct); i++) {
+ reg.is_int[i] = reg.is_float[i] = 1;
+ }
+ reg.regs = MAX_REGISTERS(ct);
+#elif defined __amd64__
+ if (reg.floats < MAX_FLOAT_REGISTERS(ct)) {
+ }
+
+ if (reg.ints < MAX_INT_REGISTERS(ct)) {
+ }
+
+
+ reg.floats = MAX_FLOAT_REGISTERS(ct);
+ reg.ints = MAX_INT_REGISTERS(ct);
+#else
+ dasm_put(Dst, 1548, reg.off, nargs+1);
+#endif
+ }
+
+ dasm_put(Dst, 1574, perr);
+
+ /* remove the stack space to call local functions */
+ dasm_put(Dst, 1586);
+
+#ifdef _WIN64
+ switch (reg.regs) {
+ case 4:
+ if (reg.is_float[3]) {
+ }
+ if (reg.is_int[3]) {
+ }
+ case 3:
+ if (reg.is_float[2]) {
+ }
+ if (reg.is_int[2]) {
+ }
+ case 2:
+ if (reg.is_float[1]) {
+ }
+ if (reg.is_int[1]) {
+ }
+ case 1:
+ if (reg.is_float[0]) {
+ }
+ if (reg.is_int[0]) {
+ }
+ case 0:
+ break;
+ }
+
+ /* don't remove the space for the registers as we need 32 bytes of register overflow space */
+ assert(REGISTER_STACK_SPACE(ct) == 32);
+
+#elif defined __amd64__
+ switch (reg.floats) {
+ case 8:
+ case 7:
+ case 6:
+ case 5:
+ case 4:
+ case 3:
+ case 2:
+ case 1:
+ case 0:
+ break;
+ }
+
+ switch (reg.ints) {
+ case 6:
+ case 5:
+ case 4:
+ case 3:
+ case 2:
+ case 1:
+ case 0:
+ break;
+ }
+
+#else
+ if (ct->calling_convention == FAST_CALL) {
+ switch (reg.ints) {
+ case 2:
+ dasm_put(Dst, 1590, 4);
+ case 1:
+ dasm_put(Dst, 1596);
+ case 0:
+ break;
+ }
+
+ dasm_put(Dst, 1600, REGISTER_STACK_SPACE(ct));
+ }
+#endif
+
+#ifdef __amd64__
+ if (ct->has_var_arg) {
+ /* al stores an upper limit on the number of float register, note that
+ * its allowed to be more than the actual number of float registers used as
+ * long as its 0-8 */
+ }
+#endif
+
+ dasm_put(Dst, 1604);
+
+ /* note on windows X86 the stack may be only aligned to 4 (stdcall will
+ * have popped a multiple of 4 bytes), but we don't need 16 byte alignment on
+ * that platform
+ */
+
+ lua_rawgeti(L, ct_usr, 0);
+ mbr_ct = (const struct ctype*) lua_touserdata(L, -1);
+
+ if (mbr_ct->pointers || mbr_ct->type == INTPTR_TYPE) {
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1613, perr, mbr_ct, lua_upvalueindex(num_upvals));
+
+ } else {
+ switch (mbr_ct->type) {
+ case FUNCTION_PTR_TYPE:
+ lua_getuservalue(L, -1);
+ num_upvals += 2;
+ dasm_put(Dst, 1613, perr, mbr_ct, lua_upvalueindex(num_upvals));
+ break;
+
+ case INT64_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1653, perr, mbr_ct);
+ break;
+
+ case COMPLEX_FLOAT_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1707, perr, mbr_ct);
+ break;
+
+ case COMPLEX_DOUBLE_TYPE:
+ num_upvals++;
+ dasm_put(Dst, 1761, perr);
+ break;
+
+ case VOID_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1778);
+ break;
+
+ case BOOL_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1783);
+ break;
+
+ case INT8_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1360);
+ } else {
+ dasm_put(Dst, 1364);
+ }
+ dasm_put(Dst, 1788);
+ break;
+
+ case INT16_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1368);
+ } else {
+ dasm_put(Dst, 1372);
+ }
+ dasm_put(Dst, 1788);
+ break;
+
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ lua_pop(L, 1);
+ if (mbr_ct->is_unsigned) {
+ dasm_put(Dst, 1793);
+ } else {
+ dasm_put(Dst, 1788);
+ }
+ break;
+
+ case FLOAT_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1798);
+ break;
+
+ case DOUBLE_TYPE:
+ lua_pop(L, 1);
+ dasm_put(Dst, 1798);
+ break;
+
+ default:
+ luaL_error(L, "NYI: call return type");
+ }
+ }
+
+ assert(lua_gettop(L) == top + num_upvals);
+ {
+ cfunction f = compile(Dst, L, func, LUA_NOREF);
+ /* add a callback as an upval so that the jitted code gets cleaned up when
+ * the function gets gc'd */
+ push_callback(L, f);
+ lua_pushcclosure(L, (lua_CFunction) f, num_upvals+1);
+ }
+}
+
diff --git a/plugins/MirLua/Modules/luaffi/src/ctype.c b/plugins/MirLua/Modules/luaffi/src/ctype.c new file mode 100644 index 0000000000..b15d600e62 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/ctype.c @@ -0,0 +1,268 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+#include "ffi.h"
+
+static int to_define_key;
+
+static void update_on_definition(lua_State* L, int ct_usr, int ct_idx)
+{
+ ct_usr = lua_absindex(L, ct_usr);
+ ct_idx = lua_absindex(L, ct_idx);
+
+ lua_pushlightuserdata(L, &to_define_key);
+ lua_rawget(L, ct_usr);
+
+ if (lua_isnil(L, -1)) {
+ lua_pop(L, 1); /* pop the nil */
+
+ /* {} */
+ lua_newtable(L);
+
+ /* {__mode='k'} */
+ lua_newtable(L);
+ lua_pushliteral(L, "k");
+ lua_setfield(L, -2, "__mode");
+
+ /* setmetatable({}, {__mode='k'}) */
+ lua_setmetatable(L, -2);
+
+ /* usr[TO_UPDATE_KEY] = setmetatable({}, {__mode='k'}) */
+ lua_pushlightuserdata(L, &to_define_key);
+ lua_pushvalue(L, -2);
+ lua_rawset(L, ct_usr);
+
+ /* leave the table on the stack */
+ }
+
+ /* to_update[ctype or cdata] = true */
+ lua_pushvalue(L, ct_idx);
+ lua_pushboolean(L, 1);
+ lua_rawset(L, -3);
+
+ /* pop the to_update table */
+ lua_pop(L, 1);
+}
+
+void set_defined(lua_State* L, int ct_usr, struct ctype* ct)
+{
+ ct_usr = lua_absindex(L, ct_usr);
+
+ ct->is_defined = 1;
+
+ /* update ctypes and cdatas that were created before the definition came in */
+ lua_pushlightuserdata(L, &to_define_key);
+ lua_rawget(L, ct_usr);
+
+ if (!lua_isnil(L, -1)) {
+ lua_pushnil(L);
+
+ while (lua_next(L, -2)) {
+ struct ctype* upd = (struct ctype*) lua_touserdata(L, -2);
+ upd->base_size = ct->base_size;
+ upd->align_mask = ct->align_mask;
+ upd->is_defined = 1;
+ upd->is_variable_struct = ct->is_variable_struct;
+ upd->variable_increment = ct->variable_increment;
+ assert(!upd->variable_size_known);
+ lua_pop(L, 1);
+ }
+
+ lua_pop(L, 1);
+ /* usr[TO_UPDATE_KEY] = nil */
+ lua_pushlightuserdata(L, &to_define_key);
+ lua_pushnil(L);
+ lua_rawset(L, ct_usr);
+ } else {
+ lua_pop(L, 1);
+ }
+}
+
+struct ctype* push_ctype(lua_State* L, int ct_usr, const struct ctype* ct)
+{
+ struct ctype* ret;
+ ct_usr = lua_absindex(L, ct_usr);
+
+ ret = (struct ctype*) lua_newuserdata(L, sizeof(struct ctype));
+ *ret = *ct;
+
+ push_upval(L, &ctype_mt_key);
+ lua_setmetatable(L, -2);
+
+#if LUA_VERSION_NUM == 501
+ if (!ct_usr || lua_isnil(L, ct_usr)) {
+ push_upval(L, &niluv_key);
+ lua_setfenv(L, -2);
+ }
+#endif
+
+ if (ct_usr && !lua_isnil(L, ct_usr)) {
+ lua_pushvalue(L, ct_usr);
+ lua_setuservalue(L, -2);
+ }
+
+ if (!ct->is_defined && ct_usr && !lua_isnil(L, ct_usr)) {
+ update_on_definition(L, ct_usr, -1);
+ }
+
+ return ret;
+}
+
+size_t ctype_size(lua_State* L, const struct ctype* ct)
+{
+ if (ct->pointers - ct->is_array) {
+ return sizeof(void*) * (ct->is_array ? ct->array_size : 1);
+
+ } else if (!ct->is_defined || ct->type == VOID_TYPE) {
+ return luaL_error(L, "can't calculate size of an undefined type");
+
+ } else if (ct->variable_size_known) {
+ assert(ct->is_variable_struct && !ct->is_array);
+ return ct->base_size + ct->variable_increment;
+
+ } else if (ct->is_variable_array || ct->is_variable_struct) {
+ return luaL_error(L, "internal error: calc size of variable type with unknown size");
+
+ } else {
+ return ct->base_size * (ct->is_array ? ct->array_size : 1);
+ }
+}
+
+void* push_cdata(lua_State* L, int ct_usr, const struct ctype* ct)
+{
+ struct cdata* cd;
+ size_t sz = ct->is_reference ? sizeof(void*) : ctype_size(L, ct);
+ ct_usr = lua_absindex(L, ct_usr);
+
+ /* This is to stop valgrind from complaining. Bitfields are accessed in 8
+ * byte chunks so that the code doesn't have to deal with different access
+ * patterns, but this means that occasionally it will read past the end of
+ * the struct. As its not setting the bits past the end (only reading and
+ * then writing the bits back) and the read is aligned its a non-issue,
+ * but valgrind complains nonetheless.
+ */
+ if (ct->has_bitfield) {
+ sz = ALIGN_UP(sz, 7);
+ }
+
+ cd = (struct cdata*) lua_newuserdata(L, sizeof(struct cdata) + sz);
+ *(struct ctype*) &cd->type = *ct;
+ memset(cd+1, 0, sz);
+
+ /* TODO: handle cases where lua_newuserdata returns a pointer that is not
+ * aligned */
+#if 0
+ assert((uintptr_t) (cd + 1) % 8 == 0);
+#endif
+
+#if LUA_VERSION_NUM == 501
+ if (!ct_usr || lua_isnil(L, ct_usr)) {
+ push_upval(L, &niluv_key);
+ lua_setfenv(L, -2);
+ }
+#endif
+
+ if (ct_usr && !lua_isnil(L, ct_usr)) {
+ lua_pushvalue(L, ct_usr);
+ lua_setuservalue(L, -2);
+ }
+
+ push_upval(L, &cdata_mt_key);
+ lua_setmetatable(L, -2);
+
+ if (!ct->is_defined && ct_usr && !lua_isnil(L, ct_usr)) {
+ update_on_definition(L, ct_usr, -1);
+ }
+
+ return cd+1;
+}
+
+void push_callback(lua_State* L, cfunction f)
+{
+ cfunction* pf = (cfunction*) lua_newuserdata(L, sizeof(cfunction));
+ *pf = f;
+
+ push_upval(L, &callback_mt_key);
+ lua_setmetatable(L, -2);
+}
+
+/* returns the value as a ctype, pushes the user value onto the stack */
+void check_ctype(lua_State* L, int idx, struct ctype* ct)
+{
+ if (lua_isstring(L, idx)) {
+ struct parser P;
+ P.line = 1;
+ P.prev = P.next = lua_tostring(L, idx);
+ P.align_mask = DEFAULT_ALIGN_MASK;
+ parse_type(L, &P, ct);
+ parse_argument(L, &P, -1, ct, NULL, NULL);
+ lua_remove(L, -2); /* remove the user value from parse_type */
+
+ } else if (lua_getmetatable(L, idx)) {
+ if (!equals_upval(L, -1, &ctype_mt_key)
+ && !equals_upval(L, -1, &cdata_mt_key)) {
+ goto err;
+ }
+
+ lua_pop(L, 1); /* pop the metatable */
+ *ct = *(struct ctype*) lua_touserdata(L, idx);
+ lua_getuservalue(L, idx);
+
+ } else {
+ goto err;
+ }
+
+ return;
+
+err:
+ luaL_error(L, "expected cdata, ctype or string for arg #%d", idx);
+}
+
+/* to_cdata returns the struct cdata* and pushes the user value onto the
+ * stack. If the index is not a ctype then ct is not touched, a nil is pushed,
+ * NULL is returned, and ct->type is set to INVALID_TYPE. Also dereferences
+ * references */
+void* to_cdata(lua_State* L, int idx, struct ctype* ct)
+{
+ struct cdata* cd;
+
+ ct->type = INVALID_TYPE;
+ if (!lua_isuserdata(L, idx) || !lua_getmetatable(L, idx)) {
+ lua_pushnil(L);
+ return NULL;
+ }
+
+ if (!equals_upval(L, -1, &cdata_mt_key)) {
+ lua_pop(L, 1); /* mt */
+ lua_pushnil(L);
+ return NULL;
+ }
+
+ lua_pop(L, 1); /* mt */
+ cd = (struct cdata*) lua_touserdata(L, idx);
+ *ct = cd->type;
+ lua_getuservalue(L, idx);
+
+ if (ct->is_reference) {
+ ct->is_reference = 0;
+ return *(void**) (cd+1);
+
+ } else if (ct->pointers && !ct->is_array) {
+ return *(void**) (cd+1);
+
+ } else {
+ return cd + 1;
+ }
+}
+
+/* check_cdata returns the struct cdata* and pushes the user value onto the
+ * stack. Also dereferences references. */
+void* check_cdata(lua_State* L, int idx, struct ctype* ct)
+{
+ void* p = to_cdata(L, idx, ct);
+ if (ct->type == INVALID_TYPE) {
+ luaL_error(L, "expected cdata for arg #%d", idx);
+ }
+ return p;
+}
+
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_arm.h b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_arm.h new file mode 100644 index 0000000000..da88199284 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_arm.h @@ -0,0 +1,455 @@ +/*
+** DynASM ARM encoding engine.
+** Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+** Released under the MIT/X license. See dynasm.lua for full copyright notice.
+*/
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define DASM_ARCH "arm"
+
+#ifndef DASM_EXTERN
+#define DASM_EXTERN(a,b,c,d) 0
+#endif
+
+/* Action definitions. */
+enum {
+ DASM_STOP, DASM_SECTION, DASM_ESC, DASM_REL_EXT,
+ /* The following actions need a buffer position. */
+ DASM_ALIGN, DASM_REL_LG, DASM_LABEL_LG,
+ /* The following actions also have an argument. */
+ DASM_REL_PC, DASM_LABEL_PC,
+ DASM_LONG, DASM_IMM, DASM_IMM12, DASM_IMM16, DASM_IMML8, DASM_IMML12,
+ DASM__MAX
+};
+
+/* Maximum number of section buffer positions for a single dasm_put() call. */
+#define DASM_MAXSECPOS 25
+
+/* DynASM encoder status codes. Action list offset or number are or'ed in. */
+#define DASM_S_OK 0x00000000
+#define DASM_S_NOMEM 0x01000000
+#define DASM_S_PHASE 0x02000000
+#define DASM_S_MATCH_SEC 0x03000000
+#define DASM_S_RANGE_I 0x11000000
+#define DASM_S_RANGE_SEC 0x12000000
+#define DASM_S_RANGE_LG 0x13000000
+#define DASM_S_RANGE_PC 0x14000000
+#define DASM_S_RANGE_REL 0x15000000
+#define DASM_S_UNDEF_LG 0x21000000
+#define DASM_S_UNDEF_PC 0x22000000
+
+/* Macros to convert positions (8 bit section + 24 bit index). */
+#define DASM_POS2IDX(pos) ((pos)&0x00ffffff)
+#define DASM_POS2BIAS(pos) ((pos)&0xff000000)
+#define DASM_SEC2POS(sec) ((sec)<<24)
+#define DASM_POS2SEC(pos) ((pos)>>24)
+#define DASM_POS2PTR(D, pos) (D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
+
+/* Action list type. */
+typedef const unsigned int *dasm_ActList;
+
+/* Per-section structure. */
+typedef struct dasm_Section {
+ int *rbuf; /* Biased buffer pointer (negative section bias). */
+ int *buf; /* True buffer pointer. */
+ size_t bsize; /* Buffer size in bytes. */
+ int pos; /* Biased buffer position. */
+ int epos; /* End of biased buffer position - max single put. */
+ int ofs; /* Byte offset into section. */
+} dasm_Section;
+
+/* Core structure holding the DynASM encoding state. */
+struct dasm_State {
+ size_t psize; /* Allocated size of this structure. */
+ dasm_ActList actionlist; /* Current actionlist pointer. */
+ int *lglabels; /* Local/global chain/pos ptrs. */
+ size_t lgsize;
+ int *pclabels; /* PC label chains/pos ptrs. */
+ size_t pcsize;
+ void **globals; /* Array of globals (bias -10). */
+ dasm_Section *section; /* Pointer to active section. */
+ size_t codesize; /* Total size of all code sections. */
+ int maxsection; /* 0 <= sectionidx < maxsection. */
+ int status; /* Status code. */
+ dasm_Section sections[1]; /* All sections. Alloc-extended. */
+};
+
+/* The size of the core structure depends on the max. number of sections. */
+#define DASM_PSZ(ms) (sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
+
+
+/* Initialize DynASM state. */
+void dasm_init(Dst_DECL, int maxsection)
+{
+ dasm_State *D;
+ size_t psz = 0;
+ int i;
+ Dst_REF = NULL;
+ DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
+ D = Dst_REF;
+ D->psize = psz;
+ D->lglabels = NULL;
+ D->lgsize = 0;
+ D->pclabels = NULL;
+ D->pcsize = 0;
+ D->globals = NULL;
+ D->maxsection = maxsection;
+ for (i = 0; i < maxsection; i++) {
+ D->sections[i].buf = NULL; /* Need this for pass3. */
+ D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
+ D->sections[i].bsize = 0;
+ D->sections[i].epos = 0; /* Wrong, but is recalculated after resize. */
+ }
+}
+
+/* Free DynASM state. */
+void dasm_free(Dst_DECL)
+{
+ dasm_State *D = Dst_REF;
+ int i;
+ for (i = 0; i < D->maxsection; i++)
+ if (D->sections[i].buf)
+ DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
+ if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
+ if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
+ DASM_M_FREE(Dst, D, D->psize);
+}
+
+/* Setup global label array. Must be called before dasm_setup(). */
+void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
+{
+ dasm_State *D = Dst_REF;
+ D->globals = gl - 10; /* Negative bias to compensate for locals. */
+ DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
+}
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+void dasm_growpc(Dst_DECL, unsigned int maxpc)
+{
+ dasm_State *D = Dst_REF;
+ size_t osz = D->pcsize;
+ DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
+ memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
+}
+
+/* Setup encoder. */
+void dasm_setup(Dst_DECL, const void *actionlist)
+{
+ dasm_State *D = Dst_REF;
+ int i;
+ D->actionlist = (dasm_ActList)actionlist;
+ D->status = DASM_S_OK;
+ D->section = &D->sections[0];
+ memset((void *)D->lglabels, 0, D->lgsize);
+ if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
+ for (i = 0; i < D->maxsection; i++) {
+ D->sections[i].pos = DASM_SEC2POS(i);
+ D->sections[i].ofs = 0;
+ }
+}
+
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+ do { if (!(x)) { \
+ D->status = DASM_S_##st|(p-D->actionlist-1); return; } } while (0)
+#define CKPL(kind, st) \
+ do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
+ D->status = DASM_S_RANGE_##st|(p-D->actionlist-1); return; } } while (0)
+#else
+#define CK(x, st) ((void)0)
+#define CKPL(kind, st) ((void)0)
+#endif
+
+static int dasm_imm12(unsigned int n)
+{
+ int i;
+ for (i = 0; i < 16; i++, n = (n << 2) | (n >> 30))
+ if (n <= 255) return (int)(n + (i << 8));
+ return -1;
+}
+
+/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
+void dasm_put(Dst_DECL, int start, ...)
+{
+ va_list ap;
+ dasm_State *D = Dst_REF;
+ dasm_ActList p = D->actionlist + start;
+ dasm_Section *sec = D->section;
+ int pos = sec->pos, ofs = sec->ofs;
+ int *b;
+
+ if (pos >= sec->epos) {
+ DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
+ sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
+ sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
+ sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
+ }
+
+ b = sec->rbuf;
+ b[pos++] = start;
+
+ va_start(ap, start);
+ while (1) {
+ unsigned int ins = *p++;
+ unsigned int action = (ins >> 16);
+ if (action >= DASM__MAX) {
+ ofs += 4;
+ } else {
+ int *pl, n = action >= DASM_REL_PC ? va_arg(ap, int) : 0;
+ switch (action) {
+ case DASM_STOP: goto stop;
+ case DASM_SECTION:
+ n = (ins & 255); CK(n < D->maxsection, RANGE_SEC);
+ D->section = &D->sections[n]; goto stop;
+ case DASM_ESC: p++; ofs += 4; break;
+ case DASM_REL_EXT: break;
+ case DASM_ALIGN: ofs += (ins & 255); b[pos++] = ofs; break;
+ case DASM_REL_LG:
+ n = (ins & 2047) - 10; pl = D->lglabels + n;
+ if (n >= 0) { CKPL(lg, LG); goto putrel; } /* Bkwd rel or global. */
+ pl += 10; n = *pl;
+ if (n < 0) n = 0; /* Start new chain for fwd rel if label exists. */
+ goto linkrel;
+ case DASM_REL_PC:
+ pl = D->pclabels + n; CKPL(pc, PC);
+ putrel:
+ n = *pl;
+ if (n < 0) { /* Label exists. Get label pos and store it. */
+ b[pos] = -n;
+ } else {
+ linkrel:
+ b[pos] = n; /* Else link to rel chain, anchored at label. */
+ *pl = pos;
+ }
+ pos++;
+ break;
+ case DASM_LABEL_LG:
+ pl = D->lglabels + (ins & 2047) - 10; CKPL(lg, LG); goto putlabel;
+ case DASM_LABEL_PC:
+ pl = D->pclabels + n; CKPL(pc, PC);
+ putlabel:
+ n = *pl; /* n > 0: Collapse rel chain and replace with label pos. */
+ while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos;
+ }
+ *pl = -pos; /* Label exists now. */
+ b[pos++] = ofs; /* Store pass1 offset estimate. */
+ break;
+ case DASM_LONG:
+ ofs += 4;
+ b[pos++] = n;
+ break;
+ case DASM_IMM:
+ case DASM_IMM16:
+#ifdef DASM_CHECKS
+ CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
+ if ((ins & 0x8000))
+ CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
+ else
+ CK((n>>((ins>>5)&31)) == 0, RANGE_I);
+#endif
+ b[pos++] = n;
+ break;
+ case DASM_IMML8:
+ case DASM_IMML12:
+ CK(n >= 0 ? ((n>>((ins>>5)&31)) == 0) :
+ (((-n)>>((ins>>5)&31)) == 0), RANGE_I);
+ b[pos++] = n;
+ break;
+ case DASM_IMM12:
+ CK(dasm_imm12((unsigned int)n) != -1, RANGE_I);
+ b[pos++] = n;
+ break;
+ }
+ }
+ }
+stop:
+ va_end(ap);
+ sec->pos = pos;
+ sec->ofs = ofs;
+}
+#undef CK
+
+/* Pass 2: Link sections, shrink aligns, fix label offsets. */
+int dasm_link(Dst_DECL, size_t *szp)
+{
+ dasm_State *D = Dst_REF;
+ int secnum;
+ int ofs = 0;
+
+#ifdef DASM_CHECKS
+ *szp = 0;
+ if (D->status != DASM_S_OK) return D->status;
+ {
+ int pc;
+ for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
+ if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
+ }
+#endif
+
+ { /* Handle globals not defined in this translation unit. */
+ int idx;
+ for (idx = 20; idx*sizeof(int) < D->lgsize; idx++) {
+ int n = D->lglabels[idx];
+ /* Undefined label: Collapse rel chain and replace with marker (< 0). */
+ while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
+ }
+ }
+
+ /* Combine all code sections. No support for data sections (yet). */
+ for (secnum = 0; secnum < D->maxsection; secnum++) {
+ dasm_Section *sec = D->sections + secnum;
+ int *b = sec->rbuf;
+ int pos = DASM_SEC2POS(secnum);
+ int lastpos = sec->pos;
+
+ while (pos != lastpos) {
+ dasm_ActList p = D->actionlist + b[pos++];
+ while (1) {
+ unsigned int ins = *p++;
+ unsigned int action = (ins >> 16);
+ switch (action) {
+ case DASM_STOP: case DASM_SECTION: goto stop;
+ case DASM_ESC: p++; break;
+ case DASM_REL_EXT: break;
+ case DASM_ALIGN: ofs -= (b[pos++] + ofs) & (ins & 255); break;
+ case DASM_REL_LG: case DASM_REL_PC: pos++; break;
+ case DASM_LABEL_LG: case DASM_LABEL_PC: b[pos++] += ofs; break;
+ case DASM_LONG: case DASM_IMM: case DASM_IMM12: case DASM_IMM16:
+ case DASM_IMML8: case DASM_IMML12: pos++; break;
+ }
+ }
+ stop: (void)0;
+ }
+ ofs += sec->ofs; /* Next section starts right after current section. */
+ }
+
+ D->codesize = ofs; /* Total size of all code sections */
+ *szp = ofs;
+ return DASM_S_OK;
+}
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+ do { if (!(x)) return DASM_S_##st|(p-D->actionlist-1); } while (0)
+#else
+#define CK(x, st) ((void)0)
+#endif
+
+/* Pass 3: Encode sections. */
+int dasm_encode(Dst_DECL, void *buffer)
+{
+ dasm_State *D = Dst_REF;
+ char *base = (char *)buffer;
+ unsigned int *cp = (unsigned int *)buffer;
+ int secnum;
+
+ /* Encode all code sections. No support for data sections (yet). */
+ for (secnum = 0; secnum < D->maxsection; secnum++) {
+ dasm_Section *sec = D->sections + secnum;
+ int *b = sec->buf;
+ int *endb = sec->rbuf + sec->pos;
+
+ while (b != endb) {
+ dasm_ActList p = D->actionlist + *b++;
+ while (1) {
+ unsigned int ins = *p++;
+ unsigned int action = (ins >> 16);
+ int n = (action >= DASM_ALIGN && action < DASM__MAX) ? *b++ : 0;
+ switch (action) {
+ case DASM_STOP: case DASM_SECTION: goto stop;
+ case DASM_ESC: *cp++ = *p++; break;
+ case DASM_REL_EXT:
+ n = DASM_EXTERN(Dst, (unsigned char *)cp, (ins&2047), !(ins&2048));
+ goto patchrel;
+ case DASM_ALIGN:
+ ins &= 255; while ((((char *)cp - base) & ins)) *cp++ = 0xe1a00000;
+ break;
+ case DASM_REL_LG:
+ CK(n >= 0, UNDEF_LG);
+ case DASM_REL_PC:
+ CK(n >= 0, UNDEF_PC);
+ n = *DASM_POS2PTR(D, n) - (int)((char *)cp - base) - 4;
+ patchrel:
+ if ((ins & 0x800) == 0) {
+ CK((n & 3) == 0 && ((n+0x02000000) >> 26) == 0, RANGE_REL);
+ cp[-1] |= ((n >> 2) & 0x00ffffff);
+ } else if ((ins & 0x1000)) {
+ CK((n & 3) == 0 && -256 <= n && n <= 256, RANGE_REL);
+ goto patchimml8;
+ } else {
+ CK((n & 3) == 0 && -4096 <= n && n <= 4096, RANGE_REL);
+ goto patchimml12;
+ }
+ break;
+ case DASM_LABEL_LG:
+ ins &= 2047; if (ins >= 20) D->globals[ins-10] = (void *)(base + n);
+ break;
+ case DASM_LABEL_PC: break;
+ case DASM_LONG:
+ *cp++ = n;
+ break;
+ case DASM_IMM:
+ cp[-1] |= ((n>>((ins>>10)&31)) & ((1<<((ins>>5)&31))-1)) << (ins&31);
+ break;
+ case DASM_IMM12:
+ cp[-1] |= dasm_imm12((unsigned int)n);
+ break;
+ case DASM_IMM16:
+ cp[-1] |= ((n & 0xf000) << 4) | (n & 0x0fff);
+ break;
+ case DASM_IMML8: patchimml8:
+ cp[-1] |= n >= 0 ? (0x00800000 | (n & 0x0f) | ((n & 0xf0) << 4)) :
+ ((-n & 0x0f) | ((-n & 0xf0) << 4));
+ break;
+ case DASM_IMML12: patchimml12:
+ cp[-1] |= n >= 0 ? (0x00800000 | n) : (-n);
+ break;
+ default: *cp++ = ins; break;
+ }
+ }
+ stop: (void)0;
+ }
+ }
+
+ if (base + D->codesize != (char *)cp) /* Check for phase errors. */
+ return DASM_S_PHASE;
+ return DASM_S_OK;
+}
+#undef CK
+
+/* Get PC label offset. */
+int dasm_getpclabel(Dst_DECL, unsigned int pc)
+{
+ dasm_State *D = Dst_REF;
+ if (pc*sizeof(int) < D->pcsize) {
+ int pos = D->pclabels[pc];
+ if (pos < 0) return *DASM_POS2PTR(D, -pos);
+ if (pos > 0) return -1; /* Undefined. */
+ }
+ return -2; /* Unused or out of range. */
+}
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+int dasm_checkstep(Dst_DECL, int secmatch)
+{
+ dasm_State *D = Dst_REF;
+ if (D->status == DASM_S_OK) {
+ int i;
+ for (i = 1; i <= 9; i++) {
+ if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_LG|i; break; }
+ D->lglabels[i] = 0;
+ }
+ }
+ if (D->status == DASM_S_OK && secmatch >= 0 &&
+ D->section != &D->sections[secmatch])
+ D->status = DASM_S_MATCH_SEC|(D->section-D->sections);
+ return D->status;
+}
+#endif
+
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_arm.lua b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_arm.lua new file mode 100644 index 0000000000..03d3d1ad67 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_arm.lua @@ -0,0 +1,952 @@ +------------------------------------------------------------------------------
+-- DynASM ARM module.
+--
+-- Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+
+-- Module information:
+local _info = {
+ arch = "arm",
+ description = "DynASM ARM module",
+ version = "1.3.0",
+ vernum = 10300,
+ release = "2011-05-05",
+ author = "Mike Pall",
+ license = "MIT",
+}
+
+-- Exported glue functions for the arch-specific module.
+local _M = { _info = _info }
+
+-- Cache library functions.
+local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
+local assert, setmetatable, rawget = assert, setmetatable, rawget
+local _s = string
+local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
+local match, gmatch, gsub = _s.match, _s.gmatch, _s.gsub
+local concat, sort, insert = table.concat, table.sort, table.insert
+
+-- Inherited tables and callbacks.
+local g_opt, g_arch
+local wline, werror, wfatal, wwarn
+
+-- Action name list.
+-- CHECK: Keep this in sync with the C code!
+local action_names = {
+ "STOP", "SECTION", "ESC", "REL_EXT",
+ "ALIGN", "REL_LG", "LABEL_LG",
+ "REL_PC", "LABEL_PC", "LONG", "IMM", "IMM12", "IMM16", "IMML8", "IMML12",
+}
+
+-- Maximum number of section buffer positions for dasm_put().
+-- CHECK: Keep this in sync with the C code!
+local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
+
+-- Action name -> action number.
+local map_action = {}
+for n,name in ipairs(action_names) do
+ map_action[name] = n-1
+end
+
+-- Action list buffer.
+local actlist = {}
+
+-- Argument list for next dasm_put(). Start with offset 0 into action list.
+local actargs = { 0 }
+
+-- Current number of section buffer positions for dasm_put().
+local secpos = 1
+
+------------------------------------------------------------------------------
+
+-- Return 8 digit hex number.
+local function tohex(x)
+ return sub(format("%08x", x), -8) -- Avoid 64 bit portability problem in Lua.
+end
+
+-- Dump action names and numbers.
+local function dumpactions(out)
+ out:write("DynASM encoding engine action codes:\n")
+ for n,name in ipairs(action_names) do
+ local num = map_action[name]
+ out:write(format(" %-10s %02X %d\n", name, num, num))
+ end
+ out:write("\n")
+end
+
+-- Write action list buffer as a huge static C array.
+local function writeactions(out, name)
+ local nn = #actlist
+ if nn == 0 then nn = 1; actlist[0] = map_action.STOP end
+ out:write("static const unsigned int ", name, "[", nn, "] = {\n")
+ for i = 1,nn-1 do
+ assert(out:write("0x", tohex(actlist[i]), ",\n"))
+ end
+ assert(out:write("0x", tohex(actlist[nn]), "\n};\n\n"))
+end
+
+------------------------------------------------------------------------------
+
+-- Add word to action list.
+local function wputxw(n)
+ assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+ actlist[#actlist+1] = n
+end
+
+-- Add action to list with optional arg. Advance buffer pos, too.
+local function waction(action, val, a, num)
+ local w = assert(map_action[action], "bad action name `"..action.."'")
+ wputxw(w * 0x10000 + (val or 0))
+ if a then actargs[#actargs+1] = a end
+ if a or num then secpos = secpos + (num or 1) end
+end
+
+-- Flush action list (intervening C code or buffer pos overflow).
+local function wflush(term)
+ if #actlist == actargs[1] then return end -- Nothing to flush.
+ if not term then waction("STOP") end -- Terminate action list.
+ wline(format("dasm_put(Dst, %s);", concat(actargs, ", ")), true)
+ actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
+ secpos = 1 -- The actionlist offset occupies a buffer position, too.
+end
+
+-- Put escaped word.
+local function wputw(n)
+ if n <= 0x000fffff then waction("ESC") end
+ wputxw(n)
+end
+
+-- Reserve position for word.
+local function wpos()
+ local pos = #actlist+1
+ actlist[pos] = ""
+ return pos
+end
+
+-- Store word to reserved position.
+local function wputpos(pos, n)
+ assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+ if n <= 0x000fffff then
+ insert(actlist, pos+1, n)
+ n = map_action.ESC * 0x10000
+ end
+ actlist[pos] = n
+end
+
+------------------------------------------------------------------------------
+
+-- Global label name -> global label number. With auto assignment on 1st use.
+local next_global = 20
+local map_global = setmetatable({}, { __index = function(t, name)
+ if not match(name, "^[%a_][%w_]*$") then werror("bad global label") end
+ local n = next_global
+ if n > 2047 then werror("too many global labels") end
+ next_global = n + 1
+ t[name] = n
+ return n
+end})
+
+-- Dump global labels.
+local function dumpglobals(out, lvl)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("Global labels:\n")
+ for i=20,next_global-1 do
+ out:write(format(" %s\n", t[i]))
+ end
+ out:write("\n")
+end
+
+-- Write global label enum.
+local function writeglobals(out, prefix)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("enum {\n")
+ for i=20,next_global-1 do
+ out:write(" ", prefix, t[i], ",\n")
+ end
+ out:write(" ", prefix, "_MAX\n};\n")
+end
+
+-- Write global label names.
+local function writeglobalnames(out, name)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("static const char *const ", name, "[] = {\n")
+ for i=20,next_global-1 do
+ out:write(" \"", t[i], "\",\n")
+ end
+ out:write(" (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Extern label name -> extern label number. With auto assignment on 1st use.
+local next_extern = 0
+local map_extern_ = {}
+local map_extern = setmetatable({}, { __index = function(t, name)
+ -- No restrictions on the name for now.
+ local n = next_extern
+ if n > 2047 then werror("too many extern labels") end
+ next_extern = n + 1
+ t[name] = n
+ map_extern_[n] = name
+ return n
+end})
+
+-- Dump extern labels.
+local function dumpexterns(out, lvl)
+ out:write("Extern labels:\n")
+ for i=0,next_extern-1 do
+ out:write(format(" %s\n", map_extern_[i]))
+ end
+ out:write("\n")
+end
+
+-- Write extern label names.
+local function writeexternnames(out, name)
+ out:write("static const char *const ", name, "[] = {\n")
+ for i=0,next_extern-1 do
+ out:write(" \"", map_extern_[i], "\",\n")
+ end
+ out:write(" (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Arch-specific maps.
+
+-- Ext. register name -> int. name.
+local map_archdef = { sp = "r13", lr = "r14", pc = "r15", }
+
+-- Int. register name -> ext. name.
+local map_reg_rev = { r13 = "sp", r14 = "lr", r15 = "pc", }
+
+local map_type = {} -- Type name -> { ctype, reg }
+local ctypenum = 0 -- Type number (for Dt... macros).
+
+-- Reverse defines for registers.
+function _M.revdef(s)
+ return map_reg_rev[s] or s
+end
+
+local map_shift = { lsl = 0, lsr = 1, asr = 2, ror = 3, }
+
+local map_cond = {
+ eq = 0, ne = 1, cs = 2, cc = 3, mi = 4, pl = 5, vs = 6, vc = 7,
+ hi = 8, ls = 9, ge = 10, lt = 11, gt = 12, le = 13, al = 14,
+ hs = 2, lo = 3,
+}
+
+------------------------------------------------------------------------------
+
+-- Template strings for ARM instructions.
+local map_op = {
+ -- Basic data processing instructions.
+ and_3 = "e0000000DNPs",
+ eor_3 = "e0200000DNPs",
+ sub_3 = "e0400000DNPs",
+ rsb_3 = "e0600000DNPs",
+ add_3 = "e0800000DNPs",
+ adc_3 = "e0a00000DNPs",
+ sbc_3 = "e0c00000DNPs",
+ rsc_3 = "e0e00000DNPs",
+ tst_2 = "e1100000NP",
+ teq_2 = "e1300000NP",
+ cmp_2 = "e1500000NP",
+ cmn_2 = "e1700000NP",
+ orr_3 = "e1800000DNPs",
+ mov_2 = "e1a00000DPs",
+ bic_3 = "e1c00000DNPs",
+ mvn_2 = "e1e00000DPs",
+
+ and_4 = "e0000000DNMps",
+ eor_4 = "e0200000DNMps",
+ sub_4 = "e0400000DNMps",
+ rsb_4 = "e0600000DNMps",
+ add_4 = "e0800000DNMps",
+ adc_4 = "e0a00000DNMps",
+ sbc_4 = "e0c00000DNMps",
+ rsc_4 = "e0e00000DNMps",
+ tst_3 = "e1100000NMp",
+ teq_3 = "e1300000NMp",
+ cmp_3 = "e1500000NMp",
+ cmn_3 = "e1700000NMp",
+ orr_4 = "e1800000DNMps",
+ mov_3 = "e1a00000DMps",
+ bic_4 = "e1c00000DNMps",
+ mvn_3 = "e1e00000DMps",
+
+ lsl_3 = "e1a00000DMws",
+ lsr_3 = "e1a00020DMws",
+ asr_3 = "e1a00040DMws",
+ ror_3 = "e1a00060DMws",
+ rrx_2 = "e1a00060DMs",
+
+ -- Multiply and multiply-accumulate.
+ mul_3 = "e0000090NMSs",
+ mla_4 = "e0200090NMSDs",
+ umaal_4 = "e0400090DNMSs", -- v6
+ mls_4 = "e0600090DNMSs", -- v6T2
+ umull_4 = "e0800090DNMSs",
+ umlal_4 = "e0a00090DNMSs",
+ smull_4 = "e0c00090DNMSs",
+ smlal_4 = "e0e00090DNMSs",
+
+ -- Halfword multiply and multiply-accumulate.
+ smlabb_4 = "e1000080NMSD", -- v5TE
+ smlatb_4 = "e10000a0NMSD", -- v5TE
+ smlabt_4 = "e10000c0NMSD", -- v5TE
+ smlatt_4 = "e10000e0NMSD", -- v5TE
+ smlawb_4 = "e1200080NMSD", -- v5TE
+ smulwb_3 = "e12000a0NMS", -- v5TE
+ smlawt_4 = "e12000c0NMSD", -- v5TE
+ smulwt_3 = "e12000e0NMS", -- v5TE
+ smlalbb_4 = "e1400080NMSD", -- v5TE
+ smlaltb_4 = "e14000a0NMSD", -- v5TE
+ smlalbt_4 = "e14000c0NMSD", -- v5TE
+ smlaltt_4 = "e14000e0NMSD", -- v5TE
+ smulbb_3 = "e1600080NMS", -- v5TE
+ smultb_3 = "e16000a0NMS", -- v5TE
+ smulbt_3 = "e16000c0NMS", -- v5TE
+ smultt_3 = "e16000e0NMS", -- v5TE
+
+ -- Miscellaneous data processing instructions.
+ clz_2 = "e16f0f10DM", -- v5T
+ rev_2 = "e6bf0f30DM", -- v6
+ rev16_2 = "e6bf0fb0DM", -- v6
+ revsh_2 = "e6ff0fb0DM", -- v6
+ sel_3 = "e6800fb0DNM", -- v6
+ usad8_3 = "e780f010NMS", -- v6
+ usada8_4 = "e7800010NMSD", -- v6
+ rbit_2 = "e6ff0f30DM", -- v6T2
+ movw_2 = "e3000000DW", -- v6T2
+ movt_2 = "e3400000DW", -- v6T2
+ -- Note: the X encodes width-1, not width.
+ sbfx_4 = "e7a00050DMvX", -- v6T2
+ ubfx_4 = "e7e00050DMvX", -- v6T2
+ -- Note: the X encodes the msb field, not the width.
+ bfc_3 = "e7c0001fDvX", -- v6T2
+ bfi_4 = "e7c00010DMvX", -- v6T2
+
+ -- Packing and unpacking instructions.
+ pkhbt_3 = "e6800010DNM", pkhbt_4 = "e6800010DNMv", -- v6
+ pkhtb_3 = "e6800050DNM", pkhtb_4 = "e6800050DNMv", -- v6
+ sxtab_3 = "e6a00070DNM", sxtab_4 = "e6a00070DNMv", -- v6
+ sxtab16_3 = "e6800070DNM", sxtab16_4 = "e6800070DNMv", -- v6
+ sxtah_3 = "e6b00070DNM", sxtah_4 = "e6b00070DNMv", -- v6
+ sxtb_2 = "e6af0070DM", sxtb_3 = "e6af0070DMv", -- v6
+ sxtb16_2 = "e68f0070DM", sxtb16_3 = "e68f0070DMv", -- v6
+ sxth_2 = "e6bf0070DM", sxth_3 = "e6bf0070DMv", -- v6
+ uxtab_3 = "e6e00070DNM", uxtab_4 = "e6e00070DNMv", -- v6
+ uxtab16_3 = "e6c00070DNM", uxtab16_4 = "e6c00070DNMv", -- v6
+ uxtah_3 = "e6f00070DNM", uxtah_4 = "e6f00070DNMv", -- v6
+ uxtb_2 = "e6ef0070DM", uxtb_3 = "e6ef0070DMv", -- v6
+ uxtb16_2 = "e6cf0070DM", uxtb16_3 = "e6cf0070DMv", -- v6
+ uxth_2 = "e6ff0070DM", uxth_3 = "e6ff0070DMv", -- v6
+
+ -- Saturating instructions.
+ qadd_3 = "e1000050DMN", -- v5TE
+ qsub_3 = "e1200050DMN", -- v5TE
+ qdadd_3 = "e1400050DMN", -- v5TE
+ qdsub_3 = "e1600050DMN", -- v5TE
+ -- Note: the X for ssat* encodes sat_imm-1, not sat_imm.
+ ssat_3 = "e6a00010DXM", ssat_4 = "e6a00010DXMp", -- v6
+ usat_3 = "e6e00010DXM", usat_4 = "e6e00010DXMp", -- v6
+ ssat16_3 = "e6a00f30DXM", -- v6
+ usat16_3 = "e6e00f30DXM", -- v6
+
+ -- Parallel addition and subtraction.
+ sadd16_3 = "e6100f10DNM", -- v6
+ sasx_3 = "e6100f30DNM", -- v6
+ ssax_3 = "e6100f50DNM", -- v6
+ ssub16_3 = "e6100f70DNM", -- v6
+ sadd8_3 = "e6100f90DNM", -- v6
+ ssub8_3 = "e6100ff0DNM", -- v6
+ qadd16_3 = "e6200f10DNM", -- v6
+ qasx_3 = "e6200f30DNM", -- v6
+ qsax_3 = "e6200f50DNM", -- v6
+ qsub16_3 = "e6200f70DNM", -- v6
+ qadd8_3 = "e6200f90DNM", -- v6
+ qsub8_3 = "e6200ff0DNM", -- v6
+ shadd16_3 = "e6300f10DNM", -- v6
+ shasx_3 = "e6300f30DNM", -- v6
+ shsax_3 = "e6300f50DNM", -- v6
+ shsub16_3 = "e6300f70DNM", -- v6
+ shadd8_3 = "e6300f90DNM", -- v6
+ shsub8_3 = "e6300ff0DNM", -- v6
+ uadd16_3 = "e6500f10DNM", -- v6
+ uasx_3 = "e6500f30DNM", -- v6
+ usax_3 = "e6500f50DNM", -- v6
+ usub16_3 = "e6500f70DNM", -- v6
+ uadd8_3 = "e6500f90DNM", -- v6
+ usub8_3 = "e6500ff0DNM", -- v6
+ uqadd16_3 = "e6600f10DNM", -- v6
+ uqasx_3 = "e6600f30DNM", -- v6
+ uqsax_3 = "e6600f50DNM", -- v6
+ uqsub16_3 = "e6600f70DNM", -- v6
+ uqadd8_3 = "e6600f90DNM", -- v6
+ uqsub8_3 = "e6600ff0DNM", -- v6
+ uhadd16_3 = "e6700f10DNM", -- v6
+ uhasx_3 = "e6700f30DNM", -- v6
+ uhsax_3 = "e6700f50DNM", -- v6
+ uhsub16_3 = "e6700f70DNM", -- v6
+ uhadd8_3 = "e6700f90DNM", -- v6
+ uhsub8_3 = "e6700ff0DNM", -- v6
+
+ -- Load/store instructions.
+ str_2 = "e4000000DL", str_3 = "e4000000DL", str_4 = "e4000000DL",
+ strb_2 = "e4400000DL", strb_3 = "e4400000DL", strb_4 = "e4400000DL",
+ ldr_2 = "e4100000DL", ldr_3 = "e4100000DL", ldr_4 = "e4100000DL",
+ ldrb_2 = "e4500000DL", ldrb_3 = "e4500000DL", ldrb_4 = "e4500000DL",
+ strh_2 = "e00000b0DL", strh_3 = "e00000b0DL",
+ ldrh_2 = "e01000b0DL", ldrh_3 = "e01000b0DL",
+ ldrd_2 = "e00000d0DL", ldrd_3 = "e00000d0DL", -- v5TE
+ ldrsb_2 = "e01000d0DL", ldrsb_3 = "e01000d0DL",
+ strd_2 = "e00000f0DL", strd_3 = "e00000f0DL", -- v5TE
+ ldrsh_2 = "e01000f0DL", ldrsh_3 = "e01000f0DL",
+
+ ldm_2 = "e8900000nR", ldmia_2 = "e8900000nR", ldmfd_2 = "e8900000nR",
+ ldmda_2 = "e8100000nR", ldmfa_2 = "e8100000nR",
+ ldmdb_2 = "e9100000nR", ldmea_2 = "e9100000nR",
+ ldmib_2 = "e9900000nR", ldmed_2 = "e9900000nR",
+ stm_2 = "e8800000nR", stmia_2 = "e8800000nR", stmfd_2 = "e8800000nR",
+ stmda_2 = "e8000000nR", stmfa_2 = "e8000000nR",
+ stmdb_2 = "e9000000nR", stmea_2 = "e9000000nR",
+ stmib_2 = "e9800000nR", stmed_2 = "e9800000nR",
+ pop_1 = "e8bd0000R", push_1 = "e92d0000R",
+
+ -- Branch instructions.
+ b_1 = "ea000000B",
+ bl_1 = "eb000000B",
+ blx_1 = "e12fff30C",
+ bx_1 = "e12fff10M",
+
+ -- Miscellaneous instructions.
+ nop_0 = "e1a00000",
+ mrs_1 = "e10f0000D",
+ bkpt_1 = "e1200070K", -- v5T
+ svc_1 = "ef000000T", swi_1 = "ef000000T",
+ ud_0 = "e7f001f0",
+
+ -- NYI: Advanced SIMD and VFP instructions.
+
+ -- NYI instructions, since I have no need for them right now:
+ -- swp, swpb, strex, ldrex, strexd, ldrexd, strexb, ldrexb, strexh, ldrexh
+ -- msr, nopv6, yield, wfe, wfi, sev, dbg, bxj, smc, srs, rfe
+ -- cps, setend, pli, pld, pldw, clrex, dsb, dmb, isb
+ -- stc, ldc, mcr, mcr2, mrc, mrc2, mcrr, mcrr2, mrrc, mrrc2, cdp, cdp2
+}
+
+-- Add mnemonics for "s" variants.
+do
+ local t = {}
+ for k,v in pairs(map_op) do
+ if sub(v, -1) == "s" then
+ local v2 = sub(v, 1, 2)..char(byte(v, 3)+1)..sub(v, 4, -2)
+ t[sub(k, 1, -3).."s"..sub(k, -2)] = v2
+ end
+ end
+ for k,v in pairs(t) do
+ map_op[k] = v
+ end
+end
+
+------------------------------------------------------------------------------
+
+local function parse_gpr(expr)
+ local tname, ovreg = match(expr, "^([%w_]+):(r1?[0-9])$")
+ local tp = map_type[tname or expr]
+ if tp then
+ local reg = ovreg or tp.reg
+ if not reg then
+ werror("type `"..(tname or expr).."' needs a register override")
+ end
+ expr = reg
+ end
+ local r = match(expr, "^r(1?[0-9])$")
+ if r then
+ r = tonumber(r)
+ if r <= 15 then return r, tp end
+ end
+ werror("bad register name `"..expr.."'")
+end
+
+local function parse_gpr_pm(expr)
+ local pm, expr2 = match(expr, "^([+-]?)(.*)$")
+ return parse_gpr(expr2), (pm == "-")
+end
+
+local function parse_reglist(reglist)
+ reglist = match(reglist, "^{%s*([^}]*)}$")
+ if not reglist then werror("register list expected") end
+ local rr = 0
+ for p in gmatch(reglist..",", "%s*([^,]*),") do
+ local rbit = 2^parse_gpr(gsub(p, "%s+$", ""))
+ if ((rr - (rr % rbit)) / rbit) % 2 ~= 0 then
+ werror("duplicate register `"..p.."'")
+ end
+ rr = rr + rbit
+ end
+ return rr
+end
+
+local function parse_imm(imm, bits, shift, scale, signed)
+ imm = match(imm, "^#(.*)$")
+ if not imm then werror("expected immediate operand") end
+ local n = tonumber(imm)
+ if n then
+ if n % 2^scale == 0 then
+ n = n / 2^scale
+ if signed then
+ if n >= 0 then
+ if n < 2^(bits-1) then return n*2^shift end
+ else
+ if n >= -(2^(bits-1))-1 then return (n+2^bits)*2^shift end
+ end
+ else
+ if n >= 0 and n <= 2^bits-1 then return n*2^shift end
+ end
+ end
+ werror("out of range immediate `"..imm.."'")
+ else
+ waction("IMM", (signed and 32768 or 0)+scale*1024+bits*32+shift, imm)
+ return 0
+ end
+end
+
+local function parse_imm12(imm)
+ local n = tonumber(imm)
+ if n then
+ local m = n
+ for i=0,-15,-1 do
+ if m >= 0 and m <= 255 and n % 1 == 0 then return m + (i%16) * 256 end
+ local t = m % 4
+ m = (m - t) / 4 + t * 2^30
+ end
+ werror("out of range immediate `"..imm.."'")
+ else
+ waction("IMM12", 0, imm)
+ return 0
+ end
+end
+
+local function parse_imm16(imm)
+ imm = match(imm, "^#(.*)$")
+ if not imm then werror("expected immediate operand") end
+ local n = tonumber(imm)
+ if n then
+ if n >= 0 and n <= 65535 and n % 1 == 0 then
+ local t = n % 4096
+ return (n - t) * 16 + t
+ end
+ werror("out of range immediate `"..imm.."'")
+ else
+ waction("IMM16", 32*16, imm)
+ return 0
+ end
+end
+
+local function parse_imm_load(imm, ext)
+ local n = tonumber(imm)
+ if n then
+ if ext then
+ if n >= -255 and n <= 255 then
+ local up = 0x00800000
+ if n < 0 then n = -n; up = 0 end
+ return (n-(n%16))*16+(n%16) + up
+ end
+ else
+ if n >= -4095 and n <= 4095 then
+ if n >= 0 then return n+0x00800000 end
+ return -n
+ end
+ end
+ werror("out of range immediate `"..imm.."'")
+ else
+ waction(ext and "IMML8" or "IMML12", 32768 + 32*(ext and 8 or 12), imm)
+ return 0
+ end
+end
+
+local function parse_shift(shift, gprok)
+ if shift == "rrx" then
+ return 3 * 32
+ else
+ local s, s2 = match(shift, "^(%S+)%s*(.*)$")
+ s = map_shift[s]
+ if not s then werror("expected shift operand") end
+ if sub(s2, 1, 1) == "#" then
+ return parse_imm(s2, 5, 7, 0, false) + s * 32
+ else
+ if not gprok then werror("expected immediate shift operand") end
+ return parse_gpr(s2) * 256 + s * 32 + 16
+ end
+ end
+end
+
+local function parse_label(label, def)
+ local prefix = sub(label, 1, 2)
+ -- =>label (pc label reference)
+ if prefix == "=>" then
+ return "PC", 0, sub(label, 3)
+ end
+ -- ->name (global label reference)
+ if prefix == "->" then
+ return "LG", map_global[sub(label, 3)]
+ end
+ if def then
+ -- [1-9] (local label definition)
+ if match(label, "^[1-9]$") then
+ return "LG", 10+tonumber(label)
+ end
+ else
+ -- [<>][1-9] (local label reference)
+ local dir, lnum = match(label, "^([<>])([1-9])$")
+ if dir then -- Fwd: 1-9, Bkwd: 11-19.
+ return "LG", lnum + (dir == ">" and 0 or 10)
+ end
+ -- extern label (extern label reference)
+ local extname = match(label, "^extern%s+(%S+)$")
+ if extname then
+ return "EXT", map_extern[extname]
+ end
+ end
+ werror("bad label `"..label.."'")
+end
+
+local function parse_load(params, nparams, n, op)
+ local oplo = op % 256
+ local ext, ldrd = (oplo ~= 0), (oplo == 208)
+ local d
+ if (ldrd or oplo == 240) then
+ d = ((op - (op % 4096)) / 4096) % 16
+ if d % 2 ~= 0 then werror("odd destination register") end
+ end
+ local pn = params[n]
+ local p1, wb = match(pn, "^%[%s*(.-)%s*%](!?)$")
+ local p2 = params[n+1]
+ if not p1 then
+ if not p2 then
+ if match(pn, "^[<>=%-]") or match(pn, "^extern%s+") then
+ local mode, n, s = parse_label(pn, false)
+ waction("REL_"..mode, n + (ext and 0x1800 or 0x0800), s, 1)
+ return op + 15 * 65536 + 0x01000000 + (ext and 0x00400000 or 0)
+ end
+ local reg, tailr = match(pn, "^([%w_:]+)%s*(.*)$")
+ if reg and tailr ~= "" then
+ local d, tp = parse_gpr(reg)
+ if tp then
+ waction(ext and "IMML8" or "IMML12", 32768 + 32*(ext and 8 or 12),
+ format(tp.ctypefmt, tailr))
+ return op + d * 65536 + 0x01000000 + (ext and 0x00400000 or 0)
+ end
+ end
+ end
+ werror("expected address operand")
+ end
+ if wb == "!" then op = op + 0x00200000 end
+ if p2 then
+ if wb == "!" then werror("bad use of '!'") end
+ local p3 = params[n+2]
+ op = op + parse_gpr(p1) * 65536
+ local imm = match(p2, "^#(.*)$")
+ if imm then
+ local m = parse_imm_load(imm, ext)
+ if p3 then werror("too many parameters") end
+ op = op + m + (ext and 0x00400000 or 0)
+ else
+ local m, neg = parse_gpr_pm(p2)
+ if ldrd and (m == d or m-1 == d) then werror("register conflict") end
+ op = op + m + (neg and 0 or 0x00800000) + (ext and 0 or 0x02000000)
+ if p3 then op = op + parse_shift(p3) end
+ end
+ else
+ local p1a, p2 = match(p1, "^([^,%s]*)%s*(.*)$")
+ op = op + parse_gpr(p1a) * 65536 + 0x01000000
+ if p2 ~= "" then
+ local imm = match(p2, "^,%s*#(.*)$")
+ if imm then
+ local m = parse_imm_load(imm, ext)
+ op = op + m + (ext and 0x00400000 or 0)
+ else
+ local p2a, p3 = match(p2, "^,%s*([^,%s]*)%s*,?%s*(.*)$")
+ local m, neg = parse_gpr_pm(p2a)
+ if ldrd and (m == d or m-1 == d) then werror("register conflict") end
+ op = op + m + (neg and 0 or 0x00800000) + (ext and 0 or 0x02000000)
+ if p3 ~= "" then
+ if ext then werror("too many parameters") end
+ op = op + parse_shift(p3)
+ end
+ end
+ else
+ if wb == "!" then werror("bad use of '!'") end
+ op = op + (ext and 0x00c00000 or 0x00800000)
+ end
+ end
+ return op
+end
+
+------------------------------------------------------------------------------
+
+-- Handle opcodes defined with template strings.
+map_op[".template__"] = function(params, template, nparams)
+ if not params then return sub(template, 9) end
+ local op = tonumber(sub(template, 1, 8), 16)
+ local n = 1
+
+ -- Limit number of section buffer positions used by a single dasm_put().
+ -- A single opcode needs a maximum of 3 positions.
+ if secpos+3 > maxsecpos then wflush() end
+ local pos = wpos()
+
+ -- Process each character.
+ for p in gmatch(sub(template, 9), ".") do
+ if p == "D" then
+ op = op + parse_gpr(params[n]) * 4096; n = n + 1
+ elseif p == "N" then
+ op = op + parse_gpr(params[n]) * 65536; n = n + 1
+ elseif p == "S" then
+ op = op + parse_gpr(params[n]) * 256; n = n + 1
+ elseif p == "M" then
+ op = op + parse_gpr(params[n]); n = n + 1
+ elseif p == "P" then
+ local imm = match(params[n], "^#(.*)$")
+ if imm then
+ op = op + parse_imm12(imm) + 0x02000000
+ else
+ op = op + parse_gpr(params[n])
+ end
+ n = n + 1
+ elseif p == "p" then
+ op = op + parse_shift(params[n], true); n = n + 1
+ elseif p == "L" then
+ op = parse_load(params, nparams, n, op)
+ elseif p == "B" then
+ local mode, n, s = parse_label(params[n], false)
+ waction("REL_"..mode, n, s, 1)
+ elseif p == "C" then -- blx gpr vs. blx label.
+ local p = params[n]
+ if match(p, "^([%w_]+):(r1?[0-9])$") or match(p, "^r(1?[0-9])$") then
+ op = op + parse_gpr(p)
+ else
+ if op < 0xe0000000 then werror("unconditional instruction") end
+ local mode, n, s = parse_label(p, false)
+ waction("REL_"..mode, n, s, 1)
+ op = 0xfa000000
+ end
+ elseif p == "n" then
+ local r, wb = match(params[n], "^([^!]*)(!?)$")
+ op = op + parse_gpr(r) * 65536 + (wb == "!" and 0x00200000 or 0)
+ n = n + 1
+ elseif p == "R" then
+ op = op + parse_reglist(params[n]); n = n + 1
+ elseif p == "W" then
+ op = op + parse_imm16(params[n]); n = n + 1
+ elseif p == "v" then
+ op = op + parse_imm(params[n], 5, 7, 0, false); n = n + 1
+ elseif p == "w" then
+ local imm = match(params[n], "^#(.*)$")
+ if imm then
+ op = op + parse_imm(params[n], 5, 7, 0, false); n = n + 1
+ else
+ op = op + parse_gpr(params[n]) * 256 + 16
+ end
+ elseif p == "X" then
+ op = op + parse_imm(params[n], 5, 16, 0, false); n = n + 1
+ elseif p == "K" then
+ local imm = tonumber(match(params[n], "^#(.*)$")); n = n + 1
+ if not imm or imm % 1 ~= 0 or imm < 0 or imm > 0xffff then
+ werror("bad immediate operand")
+ end
+ local t = imm % 16
+ op = op + (imm - t) * 16 + t
+ elseif p == "T" then
+ op = op + parse_imm(params[n], 24, 0, 0, false); n = n + 1
+ elseif p == "s" then
+ -- Ignored.
+ else
+ assert(false)
+ end
+ end
+ wputpos(pos, op)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode to mark the position where the action list is to be emitted.
+map_op[".actionlist_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeactions(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the global enum is to be emitted.
+map_op[".globals_1"] = function(params)
+ if not params then return "prefix" end
+ local prefix = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeglobals(out, prefix) end)
+end
+
+-- Pseudo-opcode to mark the position where the global names are to be emitted.
+map_op[".globalnames_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeglobalnames(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the extern names are to be emitted.
+map_op[".externnames_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeexternnames(out, name) end)
+end
+
+------------------------------------------------------------------------------
+
+-- Label pseudo-opcode (converted from trailing colon form).
+map_op[".label_1"] = function(params)
+ if not params then return "[1-9] | ->global | =>pcexpr" end
+ if secpos+1 > maxsecpos then wflush() end
+ local mode, n, s = parse_label(params[1], true)
+ if mode == "EXT" then werror("bad label definition") end
+ waction("LABEL_"..mode, n, s, 1)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcodes for data storage.
+map_op[".long_*"] = function(params)
+ if not params then return "imm..." end
+ for _,p in ipairs(params) do
+ local n = tonumber(p)
+ if n then
+ if n < 0 then n = n + 2^32 end
+ wputw(n)
+ if secpos+2 > maxsecpos then wflush() end
+ else
+ waction("LONG", 0, format("(uintptr_t)(%s)", p))
+ end
+ end
+end
+
+-- Alignment pseudo-opcode.
+map_op[".align_1"] = function(params)
+ if not params then return "numpow2" end
+ if secpos+1 > maxsecpos then wflush() end
+ local align = tonumber(params[1])
+ if align then
+ local x = align
+ -- Must be a power of 2 in the range (2 ... 256).
+ for i=1,8 do
+ x = x / 2
+ if x == 1 then
+ waction("ALIGN", align-1, nil, 1) -- Action byte is 2**n-1.
+ return
+ end
+ end
+ end
+ werror("bad alignment")
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode for (primitive) type definitions (map to C types).
+map_op[".type_3"] = function(params, nparams)
+ if not params then
+ return nparams == 2 and "name, ctype" or "name, ctype, reg"
+ end
+ local name, ctype, reg = params[1], params[2], params[3]
+ if not match(name, "^[%a_][%w_]*$") then
+ werror("bad type name `"..name.."'")
+ end
+ local tp = map_type[name]
+ if tp then
+ werror("duplicate type `"..name.."'")
+ end
+ -- Add #type to defines. A bit unclean to put it in map_archdef.
+ map_archdef["#"..name] = "sizeof("..ctype..")"
+ -- Add new type and emit shortcut define.
+ local num = ctypenum + 1
+ map_type[name] = {
+ ctype = ctype,
+ ctypefmt = format("Dt%X(%%s)", num),
+ reg = reg,
+ }
+ wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
+ ctypenum = num
+end
+map_op[".type_2"] = map_op[".type_3"]
+
+-- Dump type definitions.
+local function dumptypes(out, lvl)
+ local t = {}
+ for name in pairs(map_type) do t[#t+1] = name end
+ sort(t)
+ out:write("Type definitions:\n")
+ for _,name in ipairs(t) do
+ local tp = map_type[name]
+ local reg = tp.reg or ""
+ out:write(format(" %-20s %-20s %s\n", name, tp.ctype, reg))
+ end
+ out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Set the current section.
+function _M.section(num)
+ waction("SECTION", num)
+ wflush(true) -- SECTION is a terminal action.
+end
+
+------------------------------------------------------------------------------
+
+-- Dump architecture description.
+function _M.dumparch(out)
+ out:write(format("DynASM %s version %s, released %s\n\n",
+ _info.arch, _info.version, _info.release))
+ dumpactions(out)
+end
+
+-- Dump all user defined elements.
+function _M.dumpdef(out, lvl)
+ dumptypes(out, lvl)
+ dumpglobals(out, lvl)
+ dumpexterns(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Pass callbacks from/to the DynASM core.
+function _M.passcb(wl, we, wf, ww)
+ wline, werror, wfatal, wwarn = wl, we, wf, ww
+ return wflush
+end
+
+-- Setup the arch-specific module.
+function _M.setup(arch, opt)
+ g_arch, g_opt = arch, opt
+end
+
+-- Merge the core maps and the arch-specific maps.
+function _M.mergemaps(map_coreop, map_def)
+ setmetatable(map_op, { __index = function(t, k)
+ local v = map_coreop[k]
+ if v then return v end
+ local cc = sub(k, -4, -3)
+ local cv = map_cond[cc]
+ if cv then
+ local v = rawget(t, sub(k, 1, -5)..sub(k, -2))
+ if type(v) == "string" then return format("%x%s", cv, sub(v, 2)) end
+ end
+ end })
+ setmetatable(map_def, { __index = map_archdef })
+ return map_op, map_def
+end
+
+return _M
+
+------------------------------------------------------------------------------
+
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_ppc.h b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_ppc.h new file mode 100644 index 0000000000..74e1c7d432 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_ppc.h @@ -0,0 +1,408 @@ +/*
+** DynASM PPC encoding engine.
+** Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+** Released under the MIT/X license. See dynasm.lua for full copyright notice.
+*/
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define DASM_ARCH "ppc"
+
+#ifndef DASM_EXTERN
+#define DASM_EXTERN(a,b,c,d) 0
+#endif
+
+/* Action definitions. */
+enum {
+ DASM_STOP, DASM_SECTION, DASM_ESC, DASM_REL_EXT,
+ /* The following actions need a buffer position. */
+ DASM_ALIGN, DASM_REL_LG, DASM_LABEL_LG,
+ /* The following actions also have an argument. */
+ DASM_REL_PC, DASM_LABEL_PC, DASM_IMM,
+ DASM__MAX
+};
+
+/* Maximum number of section buffer positions for a single dasm_put() call. */
+#define DASM_MAXSECPOS 25
+
+/* DynASM encoder status codes. Action list offset or number are or'ed in. */
+#define DASM_S_OK 0x00000000
+#define DASM_S_NOMEM 0x01000000
+#define DASM_S_PHASE 0x02000000
+#define DASM_S_MATCH_SEC 0x03000000
+#define DASM_S_RANGE_I 0x11000000
+#define DASM_S_RANGE_SEC 0x12000000
+#define DASM_S_RANGE_LG 0x13000000
+#define DASM_S_RANGE_PC 0x14000000
+#define DASM_S_RANGE_REL 0x15000000
+#define DASM_S_UNDEF_LG 0x21000000
+#define DASM_S_UNDEF_PC 0x22000000
+
+/* Macros to convert positions (8 bit section + 24 bit index). */
+#define DASM_POS2IDX(pos) ((pos)&0x00ffffff)
+#define DASM_POS2BIAS(pos) ((pos)&0xff000000)
+#define DASM_SEC2POS(sec) ((sec)<<24)
+#define DASM_POS2SEC(pos) ((pos)>>24)
+#define DASM_POS2PTR(D, pos) (D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
+
+/* Action list type. */
+typedef const unsigned int *dasm_ActList;
+
+/* Per-section structure. */
+typedef struct dasm_Section {
+ int *rbuf; /* Biased buffer pointer (negative section bias). */
+ int *buf; /* True buffer pointer. */
+ size_t bsize; /* Buffer size in bytes. */
+ int pos; /* Biased buffer position. */
+ int epos; /* End of biased buffer position - max single put. */
+ int ofs; /* Byte offset into section. */
+} dasm_Section;
+
+/* Core structure holding the DynASM encoding state. */
+struct dasm_State {
+ size_t psize; /* Allocated size of this structure. */
+ dasm_ActList actionlist; /* Current actionlist pointer. */
+ int *lglabels; /* Local/global chain/pos ptrs. */
+ size_t lgsize;
+ int *pclabels; /* PC label chains/pos ptrs. */
+ size_t pcsize;
+ void **globals; /* Array of globals (bias -10). */
+ dasm_Section *section; /* Pointer to active section. */
+ size_t codesize; /* Total size of all code sections. */
+ int maxsection; /* 0 <= sectionidx < maxsection. */
+ int status; /* Status code. */
+ dasm_Section sections[1]; /* All sections. Alloc-extended. */
+};
+
+/* The size of the core structure depends on the max. number of sections. */
+#define DASM_PSZ(ms) (sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
+
+
+/* Initialize DynASM state. */
+void dasm_init(Dst_DECL, int maxsection)
+{
+ dasm_State *D;
+ size_t psz = 0;
+ int i;
+ Dst_REF = NULL;
+ DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
+ D = Dst_REF;
+ D->psize = psz;
+ D->lglabels = NULL;
+ D->lgsize = 0;
+ D->pclabels = NULL;
+ D->pcsize = 0;
+ D->globals = NULL;
+ D->maxsection = maxsection;
+ for (i = 0; i < maxsection; i++) {
+ D->sections[i].buf = NULL; /* Need this for pass3. */
+ D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
+ D->sections[i].bsize = 0;
+ D->sections[i].epos = 0; /* Wrong, but is recalculated after resize. */
+ }
+}
+
+/* Free DynASM state. */
+void dasm_free(Dst_DECL)
+{
+ dasm_State *D = Dst_REF;
+ int i;
+ for (i = 0; i < D->maxsection; i++)
+ if (D->sections[i].buf)
+ DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
+ if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
+ if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
+ DASM_M_FREE(Dst, D, D->psize);
+}
+
+/* Setup global label array. Must be called before dasm_setup(). */
+void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
+{
+ dasm_State *D = Dst_REF;
+ D->globals = gl - 10; /* Negative bias to compensate for locals. */
+ DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
+}
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+void dasm_growpc(Dst_DECL, unsigned int maxpc)
+{
+ dasm_State *D = Dst_REF;
+ size_t osz = D->pcsize;
+ DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
+ memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
+}
+
+/* Setup encoder. */
+void dasm_setup(Dst_DECL, const void *actionlist)
+{
+ dasm_State *D = Dst_REF;
+ int i;
+ D->actionlist = (dasm_ActList)actionlist;
+ D->status = DASM_S_OK;
+ D->section = &D->sections[0];
+ memset((void *)D->lglabels, 0, D->lgsize);
+ if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
+ for (i = 0; i < D->maxsection; i++) {
+ D->sections[i].pos = DASM_SEC2POS(i);
+ D->sections[i].ofs = 0;
+ }
+}
+
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+ do { if (!(x)) { \
+ D->status = DASM_S_##st|(p-D->actionlist-1); return; } } while (0)
+#define CKPL(kind, st) \
+ do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
+ D->status = DASM_S_RANGE_##st|(p-D->actionlist-1); return; } } while (0)
+#else
+#define CK(x, st) ((void)0)
+#define CKPL(kind, st) ((void)0)
+#endif
+
+/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
+void dasm_put(Dst_DECL, int start, ...)
+{
+ va_list ap;
+ dasm_State *D = Dst_REF;
+ dasm_ActList p = D->actionlist + start;
+ dasm_Section *sec = D->section;
+ int pos = sec->pos, ofs = sec->ofs;
+ int *b;
+
+ if (pos >= sec->epos) {
+ DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
+ sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
+ sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
+ sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
+ }
+
+ b = sec->rbuf;
+ b[pos++] = start;
+
+ va_start(ap, start);
+ while (1) {
+ unsigned int ins = *p++;
+ unsigned int action = (ins >> 16);
+ if (action >= DASM__MAX) {
+ ofs += 4;
+ } else {
+ int *pl, n = action >= DASM_REL_PC ? va_arg(ap, int) : 0;
+ switch (action) {
+ case DASM_STOP: goto stop;
+ case DASM_SECTION:
+ n = (ins & 255); CK(n < D->maxsection, RANGE_SEC);
+ D->section = &D->sections[n]; goto stop;
+ case DASM_ESC: p++; ofs += 4; break;
+ case DASM_REL_EXT: break;
+ case DASM_ALIGN: ofs += (ins & 255); b[pos++] = ofs; break;
+ case DASM_REL_LG:
+ n = (ins & 2047) - 10; pl = D->lglabels + n;
+ if (n >= 0) { CKPL(lg, LG); goto putrel; } /* Bkwd rel or global. */
+ pl += 10; n = *pl;
+ if (n < 0) n = 0; /* Start new chain for fwd rel if label exists. */
+ goto linkrel;
+ case DASM_REL_PC:
+ pl = D->pclabels + n; CKPL(pc, PC);
+ putrel:
+ n = *pl;
+ if (n < 0) { /* Label exists. Get label pos and store it. */
+ b[pos] = -n;
+ } else {
+ linkrel:
+ b[pos] = n; /* Else link to rel chain, anchored at label. */
+ *pl = pos;
+ }
+ pos++;
+ break;
+ case DASM_LABEL_LG:
+ pl = D->lglabels + (ins & 2047) - 10; CKPL(lg, LG); goto putlabel;
+ case DASM_LABEL_PC:
+ pl = D->pclabels + n; CKPL(pc, PC);
+ putlabel:
+ n = *pl; /* n > 0: Collapse rel chain and replace with label pos. */
+ while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos;
+ }
+ *pl = -pos; /* Label exists now. */
+ b[pos++] = ofs; /* Store pass1 offset estimate. */
+ break;
+ case DASM_IMM:
+#ifdef DASM_CHECKS
+ CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
+ if (ins & 0x8000)
+ CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
+ else
+ CK((n>>((ins>>5)&31)) == 0, RANGE_I);
+#endif
+ b[pos++] = n;
+ break;
+ }
+ }
+ }
+stop:
+ va_end(ap);
+ sec->pos = pos;
+ sec->ofs = ofs;
+}
+#undef CK
+
+/* Pass 2: Link sections, shrink aligns, fix label offsets. */
+int dasm_link(Dst_DECL, size_t *szp)
+{
+ dasm_State *D = Dst_REF;
+ int secnum;
+ int ofs = 0;
+
+#ifdef DASM_CHECKS
+ *szp = 0;
+ if (D->status != DASM_S_OK) return D->status;
+ {
+ int pc;
+ for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
+ if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
+ }
+#endif
+
+ { /* Handle globals not defined in this translation unit. */
+ int idx;
+ for (idx = 20; idx*sizeof(int) < D->lgsize; idx++) {
+ int n = D->lglabels[idx];
+ /* Undefined label: Collapse rel chain and replace with marker (< 0). */
+ while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
+ }
+ }
+
+ /* Combine all code sections. No support for data sections (yet). */
+ for (secnum = 0; secnum < D->maxsection; secnum++) {
+ dasm_Section *sec = D->sections + secnum;
+ int *b = sec->rbuf;
+ int pos = DASM_SEC2POS(secnum);
+ int lastpos = sec->pos;
+
+ while (pos != lastpos) {
+ dasm_ActList p = D->actionlist + b[pos++];
+ while (1) {
+ unsigned int ins = *p++;
+ unsigned int action = (ins >> 16);
+ switch (action) {
+ case DASM_STOP: case DASM_SECTION: goto stop;
+ case DASM_ESC: p++; break;
+ case DASM_REL_EXT: break;
+ case DASM_ALIGN: ofs -= (b[pos++] + ofs) & (ins & 255); break;
+ case DASM_REL_LG: case DASM_REL_PC: pos++; break;
+ case DASM_LABEL_LG: case DASM_LABEL_PC: b[pos++] += ofs; break;
+ case DASM_IMM: pos++; break;
+ }
+ }
+ stop: (void)0;
+ }
+ ofs += sec->ofs; /* Next section starts right after current section. */
+ }
+
+ D->codesize = ofs; /* Total size of all code sections */
+ *szp = ofs;
+ return DASM_S_OK;
+}
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+ do { if (!(x)) return DASM_S_##st|(p-D->actionlist-1); } while (0)
+#else
+#define CK(x, st) ((void)0)
+#endif
+
+/* Pass 3: Encode sections. */
+int dasm_encode(Dst_DECL, void *buffer)
+{
+ dasm_State *D = Dst_REF;
+ char *base = (char *)buffer;
+ unsigned int *cp = (unsigned int *)buffer;
+ int secnum;
+
+ /* Encode all code sections. No support for data sections (yet). */
+ for (secnum = 0; secnum < D->maxsection; secnum++) {
+ dasm_Section *sec = D->sections + secnum;
+ int *b = sec->buf;
+ int *endb = sec->rbuf + sec->pos;
+
+ while (b != endb) {
+ dasm_ActList p = D->actionlist + *b++;
+ while (1) {
+ unsigned int ins = *p++;
+ unsigned int action = (ins >> 16);
+ int n = (action >= DASM_ALIGN && action < DASM__MAX) ? *b++ : 0;
+ switch (action) {
+ case DASM_STOP: case DASM_SECTION: goto stop;
+ case DASM_ESC: *cp++ = *p++; break;
+ case DASM_REL_EXT:
+ n = DASM_EXTERN(Dst, (unsigned char *)cp, (ins & 2047), 1);
+ goto patchrel;
+ case DASM_ALIGN:
+ ins &= 255; while ((((char *)cp - base) & ins)) *cp++ = 0x60000000;
+ break;
+ case DASM_REL_LG:
+ CK(n >= 0, UNDEF_LG);
+ case DASM_REL_PC:
+ CK(n >= 0, UNDEF_PC);
+ n = *DASM_POS2PTR(D, n) - (int)((char *)cp - base);
+ patchrel:
+ CK((n & 3) == 0 &&
+ (((n+4) + ((ins & 2048) ? 0x00008000 : 0x02000000)) >>
+ ((ins & 2048) ? 16 : 26)) == 0, RANGE_REL);
+ cp[-1] |= ((n+4) & ((ins & 2048) ? 0x0000fffc: 0x03fffffc));
+ break;
+ case DASM_LABEL_LG:
+ ins &= 2047; if (ins >= 20) D->globals[ins-10] = (void *)(base + n);
+ break;
+ case DASM_LABEL_PC: break;
+ case DASM_IMM:
+ cp[-1] |= ((n>>((ins>>10)&31)) & ((1<<((ins>>5)&31))-1)) << (ins&31);
+ break;
+ default: *cp++ = ins; break;
+ }
+ }
+ stop: (void)0;
+ }
+ }
+
+ if (base + D->codesize != (char *)cp) /* Check for phase errors. */
+ return DASM_S_PHASE;
+ return DASM_S_OK;
+}
+#undef CK
+
+/* Get PC label offset. */
+int dasm_getpclabel(Dst_DECL, unsigned int pc)
+{
+ dasm_State *D = Dst_REF;
+ if (pc*sizeof(int) < D->pcsize) {
+ int pos = D->pclabels[pc];
+ if (pos < 0) return *DASM_POS2PTR(D, -pos);
+ if (pos > 0) return -1; /* Undefined. */
+ }
+ return -2; /* Unused or out of range. */
+}
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+int dasm_checkstep(Dst_DECL, int secmatch)
+{
+ dasm_State *D = Dst_REF;
+ if (D->status == DASM_S_OK) {
+ int i;
+ for (i = 1; i <= 9; i++) {
+ if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_LG|i; break; }
+ D->lglabels[i] = 0;
+ }
+ }
+ if (D->status == DASM_S_OK && secmatch >= 0 &&
+ D->section != &D->sections[secmatch])
+ D->status = DASM_S_MATCH_SEC|(D->section-D->sections);
+ return D->status;
+}
+#endif
+
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_ppc.lua b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_ppc.lua new file mode 100644 index 0000000000..aeaaa2a7b6 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_ppc.lua @@ -0,0 +1,1225 @@ +------------------------------------------------------------------------------
+-- DynASM PPC module.
+--
+-- Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+
+-- Module information:
+local _info = {
+ arch = "ppc",
+ description = "DynASM PPC module",
+ version = "1.3.0",
+ vernum = 10300,
+ release = "2011-05-05",
+ author = "Mike Pall",
+ license = "MIT",
+}
+
+-- Exported glue functions for the arch-specific module.
+local _M = { _info = _info }
+
+-- Cache library functions.
+local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
+local assert, setmetatable = assert, setmetatable
+local _s = string
+local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
+local match, gmatch = _s.match, _s.gmatch
+local concat, sort = table.concat, table.sort
+
+-- Inherited tables and callbacks.
+local g_opt, g_arch
+local wline, werror, wfatal, wwarn
+
+-- Action name list.
+-- CHECK: Keep this in sync with the C code!
+local action_names = {
+ "STOP", "SECTION", "ESC", "REL_EXT",
+ "ALIGN", "REL_LG", "LABEL_LG",
+ "REL_PC", "LABEL_PC", "IMM",
+}
+
+-- Maximum number of section buffer positions for dasm_put().
+-- CHECK: Keep this in sync with the C code!
+local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
+
+-- Action name -> action number.
+local map_action = {}
+for n,name in ipairs(action_names) do
+ map_action[name] = n-1
+end
+
+-- Action list buffer.
+local actlist = {}
+
+-- Argument list for next dasm_put(). Start with offset 0 into action list.
+local actargs = { 0 }
+
+-- Current number of section buffer positions for dasm_put().
+local secpos = 1
+
+------------------------------------------------------------------------------
+
+-- Return 8 digit hex number.
+local function tohex(x)
+ return sub(format("%08x", x), -8) -- Avoid 64 bit portability problem in Lua.
+end
+
+-- Dump action names and numbers.
+local function dumpactions(out)
+ out:write("DynASM encoding engine action codes:\n")
+ for n,name in ipairs(action_names) do
+ local num = map_action[name]
+ out:write(format(" %-10s %02X %d\n", name, num, num))
+ end
+ out:write("\n")
+end
+
+-- Write action list buffer as a huge static C array.
+local function writeactions(out, name)
+ local nn = #actlist
+ if nn == 0 then nn = 1; actlist[0] = map_action.STOP end
+ out:write("static const unsigned int ", name, "[", nn, "] = {\n")
+ for i = 1,nn-1 do
+ assert(out:write("0x", tohex(actlist[i]), ",\n"))
+ end
+ assert(out:write("0x", tohex(actlist[nn]), "\n};\n\n"))
+end
+
+------------------------------------------------------------------------------
+
+-- Add word to action list.
+local function wputxw(n)
+ assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+ actlist[#actlist+1] = n
+end
+
+-- Add action to list with optional arg. Advance buffer pos, too.
+local function waction(action, val, a, num)
+ local w = assert(map_action[action], "bad action name `"..action.."'")
+ wputxw(w * 0x10000 + (val or 0))
+ if a then actargs[#actargs+1] = a end
+ if a or num then secpos = secpos + (num or 1) end
+end
+
+-- Flush action list (intervening C code or buffer pos overflow).
+local function wflush(term)
+ if #actlist == actargs[1] then return end -- Nothing to flush.
+ if not term then waction("STOP") end -- Terminate action list.
+ wline(format("dasm_put(Dst, %s);", concat(actargs, ", ")), true)
+ actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
+ secpos = 1 -- The actionlist offset occupies a buffer position, too.
+end
+
+-- Put escaped word.
+local function wputw(n)
+ if n <= 0xffffff then waction("ESC") end
+ wputxw(n)
+end
+
+-- Reserve position for word.
+local function wpos()
+ local pos = #actlist+1
+ actlist[pos] = ""
+ return pos
+end
+
+-- Store word to reserved position.
+local function wputpos(pos, n)
+ assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+ actlist[pos] = n
+end
+
+------------------------------------------------------------------------------
+
+-- Global label name -> global label number. With auto assignment on 1st use.
+local next_global = 20
+local map_global = setmetatable({}, { __index = function(t, name)
+ if not match(name, "^[%a_][%w_]*$") then werror("bad global label") end
+ local n = next_global
+ if n > 2047 then werror("too many global labels") end
+ next_global = n + 1
+ t[name] = n
+ return n
+end})
+
+-- Dump global labels.
+local function dumpglobals(out, lvl)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("Global labels:\n")
+ for i=20,next_global-1 do
+ out:write(format(" %s\n", t[i]))
+ end
+ out:write("\n")
+end
+
+-- Write global label enum.
+local function writeglobals(out, prefix)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("enum {\n")
+ for i=20,next_global-1 do
+ out:write(" ", prefix, t[i], ",\n")
+ end
+ out:write(" ", prefix, "_MAX\n};\n")
+end
+
+-- Write global label names.
+local function writeglobalnames(out, name)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("static const char *const ", name, "[] = {\n")
+ for i=20,next_global-1 do
+ out:write(" \"", t[i], "\",\n")
+ end
+ out:write(" (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Extern label name -> extern label number. With auto assignment on 1st use.
+local next_extern = 0
+local map_extern_ = {}
+local map_extern = setmetatable({}, { __index = function(t, name)
+ -- No restrictions on the name for now.
+ local n = next_extern
+ if n > 2047 then werror("too many extern labels") end
+ next_extern = n + 1
+ t[name] = n
+ map_extern_[n] = name
+ return n
+end})
+
+-- Dump extern labels.
+local function dumpexterns(out, lvl)
+ out:write("Extern labels:\n")
+ for i=0,next_extern-1 do
+ out:write(format(" %s\n", map_extern_[i]))
+ end
+ out:write("\n")
+end
+
+-- Write extern label names.
+local function writeexternnames(out, name)
+ out:write("static const char *const ", name, "[] = {\n")
+ for i=0,next_extern-1 do
+ out:write(" \"", map_extern_[i], "\",\n")
+ end
+ out:write(" (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Arch-specific maps.
+local map_archdef = { sp = "r1" } -- Ext. register name -> int. name.
+
+local map_type = {} -- Type name -> { ctype, reg }
+local ctypenum = 0 -- Type number (for Dt... macros).
+
+-- Reverse defines for registers.
+function _M.revdef(s)
+ if s == "r1" then return "sp" end
+ return s
+end
+
+local map_cond = {
+ lt = 0, gt = 1, eq = 2, so = 3,
+ ge = 4, le = 5, ne = 6, ns = 7,
+}
+
+------------------------------------------------------------------------------
+
+-- Template strings for PPC instructions.
+local map_op = {
+ tdi_3 = "08000000ARI",
+ twi_3 = "0c000000ARI",
+ mulli_3 = "1c000000RRI",
+ subfic_3 = "20000000RRI",
+ cmplwi_3 = "28000000XRU",
+ cmplwi_2 = "28000000-RU",
+ cmpldi_3 = "28200000XRU",
+ cmpldi_2 = "28200000-RU",
+ cmpwi_3 = "2c000000XRI",
+ cmpwi_2 = "2c000000-RI",
+ cmpdi_3 = "2c200000XRI",
+ cmpdi_2 = "2c200000-RI",
+ addic_3 = "30000000RRI",
+ ["addic._3"] = "34000000RRI",
+ addi_3 = "38000000RR0I",
+ li_2 = "38000000RI",
+ la_2 = "38000000RD",
+ addis_3 = "3c000000RR0I",
+ lis_2 = "3c000000RI",
+ lus_2 = "3c000000RU",
+ bc_3 = "40000000AAK",
+ bcl_3 = "40000001AAK",
+ bdnz_1 = "42000000K",
+ bdz_1 = "42400000K",
+ sc_0 = "44000000",
+ b_1 = "48000000J",
+ bl_1 = "48000001J",
+ rlwimi_5 = "50000000RR~AAA.",
+ rlwinm_5 = "54000000RR~AAA.",
+ rlwnm_5 = "5c000000RR~RAA.",
+ ori_3 = "60000000RR~U",
+ nop_0 = "60000000",
+ oris_3 = "64000000RR~U",
+ xori_3 = "68000000RR~U",
+ xoris_3 = "6c000000RR~U",
+ ["andi._3"] = "70000000RR~U",
+ ["andis._3"] = "74000000RR~U",
+ lwz_2 = "80000000RD",
+ lwzu_2 = "84000000RD",
+ lbz_2 = "88000000RD",
+ lbzu_2 = "8c000000RD",
+ stw_2 = "90000000RD",
+ stwu_2 = "94000000RD",
+ stb_2 = "98000000RD",
+ stbu_2 = "9c000000RD",
+ lhz_2 = "a0000000RD",
+ lhzu_2 = "a4000000RD",
+ lha_2 = "a8000000RD",
+ lhau_2 = "ac000000RD",
+ sth_2 = "b0000000RD",
+ sthu_2 = "b4000000RD",
+ lmw_2 = "b8000000RD",
+ stmw_2 = "bc000000RD",
+ lfs_2 = "c0000000FD",
+ lfsu_2 = "c4000000FD",
+ lfd_2 = "c8000000FD",
+ lfdu_2 = "cc000000FD",
+ stfs_2 = "d0000000FD",
+ stfsu_2 = "d4000000FD",
+ stfd_2 = "d8000000FD",
+ stfdu_2 = "dc000000FD",
+ ld_2 = "e8000000RD", -- NYI: displacement must be divisible by 4.
+ ldu_2 = "e8000001RD",
+ lwa_2 = "e8000002RD",
+ std_2 = "f8000000RD",
+ stdu_2 = "f8000001RD",
+
+ -- Primary opcode 19:
+ mcrf_2 = "4c000000XX",
+ isync_0 = "4c00012c",
+ crnor_3 = "4c000042CCC",
+ crnot_2 = "4c000042CC=",
+ crandc_3 = "4c000102CCC",
+ crxor_3 = "4c000182CCC",
+ crclr_1 = "4c000182C==",
+ crnand_3 = "4c0001c2CCC",
+ crand_3 = "4c000202CCC",
+ creqv_3 = "4c000242CCC",
+ crset_1 = "4c000242C==",
+ crorc_3 = "4c000342CCC",
+ cror_3 = "4c000382CCC",
+ crmove_2 = "4c000382CC=",
+ bclr_2 = "4c000020AA",
+ bclrl_2 = "4c000021AA",
+ bcctr_2 = "4c000420AA",
+ bcctrl_2 = "4c000421AA",
+ blr_0 = "4e800020",
+ blrl_0 = "4e800021",
+ bctr_0 = "4e800420",
+ bctrl_0 = "4e800421",
+
+ -- Primary opcode 31:
+ cmpw_3 = "7c000000XRR",
+ cmpw_2 = "7c000000-RR",
+ cmpd_3 = "7c200000XRR",
+ cmpd_2 = "7c200000-RR",
+ tw_3 = "7c000008ARR",
+ subfc_3 = "7c000010RRR.",
+ subc_3 = "7c000010RRR~.",
+ mulhdu_3 = "7c000012RRR.",
+ addc_3 = "7c000014RRR.",
+ mulhwu_3 = "7c000016RRR.",
+ isel_4 = "7c00001eRRRC",
+ isellt_3 = "7c00001eRRR",
+ iselgt_3 = "7c00005eRRR",
+ iseleq_3 = "7c00009eRRR",
+ mfcr_1 = "7c000026R",
+ -- NYI: mtcrf, mtocrf, mfocrf
+ lwarx_3 = "7c000028RR0R",
+ ldx_3 = "7c00002aRR0R",
+ lwzx_3 = "7c00002eRR0R",
+ slw_3 = "7c000030RR~R.",
+ cntlzw_2 = "7c000034RR~",
+ sld_3 = "7c000036RR~R.",
+ and_3 = "7c000038RR~R.",
+ cmplw_3 = "7c000040XRR",
+ cmplw_2 = "7c000040-RR",
+ cmpld_3 = "7c200040XRR",
+ cmpld_2 = "7c200040-RR",
+ subf_3 = "7c000050RRR.",
+ sub_3 = "7c000050RRR~.",
+ ldux_3 = "7c00006aRR0R",
+ dcbst_2 = "7c00006c-RR",
+ lwzux_3 = "7c00006eRR0R",
+ cntlzd_2 = "7c000074RR~",
+ andc_3 = "7c000078RR~R.",
+ td_3 = "7c000088ARR",
+ mulhd_3 = "7c000092RRR.",
+ mulhw_3 = "7c000096RRR.",
+ ldarx_3 = "7c0000a8RR0R",
+ dcbf_2 = "7c0000ac-RR",
+ lbzx_3 = "7c0000aeRR0R",
+ neg_2 = "7c0000d0RR.",
+ lbzux_3 = "7c0000eeRR0R",
+ popcntb_2 = "7c0000f4RR~",
+ not_2 = "7c0000f8RR~%.",
+ nor_3 = "7c0000f8RR~R.",
+ subfe_3 = "7c000110RRR.",
+ sube_3 = "7c000110RRR~.",
+ adde_3 = "7c000114RRR.",
+ stdx_3 = "7c00012aRR0R",
+ stwcx_3 = "7c00012cRR0R.",
+ stwx_3 = "7c00012eRR0R",
+ prtyw_2 = "7c000134RR~",
+ stdux_3 = "7c00016aRR0R",
+ stwux_3 = "7c00016eRR0R",
+ prtyd_2 = "7c000174RR~",
+ subfze_2 = "7c000190RR.",
+ addze_2 = "7c000194RR.",
+ stdcx_3 = "7c0001acRR0R.",
+ stbx_3 = "7c0001aeRR0R",
+ subfme_2 = "7c0001d0RR.",
+ mulld_3 = "7c0001d2RRR.",
+ addme_2 = "7c0001d4RR.",
+ mullw_3 = "7c0001d6RRR.",
+ dcbtst_2 = "7c0001ec-RR",
+ stbux_3 = "7c0001eeRR0R",
+ add_3 = "7c000214RRR.",
+ dcbt_2 = "7c00022c-RR",
+ lhzx_3 = "7c00022eRR0R",
+ eqv_3 = "7c000238RR~R.",
+ eciwx_3 = "7c00026cRR0R",
+ lhzux_3 = "7c00026eRR0R",
+ xor_3 = "7c000278RR~R.",
+ mfspefscr_1 = "7c0082a6R",
+ mfxer_1 = "7c0102a6R",
+ mflr_1 = "7c0802a6R",
+ mfctr_1 = "7c0902a6R",
+ lwax_3 = "7c0002aaRR0R",
+ lhax_3 = "7c0002aeRR0R",
+ mftb_1 = "7c0c42e6R",
+ mftbu_1 = "7c0d42e6R",
+ lwaux_3 = "7c0002eaRR0R",
+ lhaux_3 = "7c0002eeRR0R",
+ sthx_3 = "7c00032eRR0R",
+ orc_3 = "7c000338RR~R.",
+ ecowx_3 = "7c00036cRR0R",
+ sthux_3 = "7c00036eRR0R",
+ or_3 = "7c000378RR~R.",
+ mr_2 = "7c000378RR~%.",
+ divdu_3 = "7c000392RRR.",
+ divwu_3 = "7c000396RRR.",
+ mtspefscr_1 = "7c0083a6R",
+ mtxer_1 = "7c0103a6R",
+ mtlr_1 = "7c0803a6R",
+ mtctr_1 = "7c0903a6R",
+ dcbi_2 = "7c0003ac-RR",
+ nand_3 = "7c0003b8RR~R.",
+ divd_3 = "7c0003d2RRR.",
+ divw_3 = "7c0003d6RRR.",
+ cmpb_3 = "7c0003f8RR~R.",
+ mcrxr_1 = "7c000400X",
+ subfco_3 = "7c000410RRR.",
+ subco_3 = "7c000410RRR~.",
+ addco_3 = "7c000414RRR.",
+ ldbrx_3 = "7c000428RR0R",
+ lswx_3 = "7c00042aRR0R",
+ lwbrx_3 = "7c00042cRR0R",
+ lfsx_3 = "7c00042eFR0R",
+ srw_3 = "7c000430RR~R.",
+ srd_3 = "7c000436RR~R.",
+ subfo_3 = "7c000450RRR.",
+ subo_3 = "7c000450RRR~.",
+ lfsux_3 = "7c00046eFR0R",
+ lswi_3 = "7c0004aaRR0A",
+ sync_0 = "7c0004ac",
+ lwsync_0 = "7c2004ac",
+ ptesync_0 = "7c4004ac",
+ lfdx_3 = "7c0004aeFR0R",
+ nego_2 = "7c0004d0RR.",
+ lfdux_3 = "7c0004eeFR0R",
+ subfeo_3 = "7c000510RRR.",
+ subeo_3 = "7c000510RRR~.",
+ addeo_3 = "7c000514RRR.",
+ stdbrx_3 = "7c000528RR0R",
+ stswx_3 = "7c00052aRR0R",
+ stwbrx_3 = "7c00052cRR0R",
+ stfsx_3 = "7c00052eFR0R",
+ stfsux_3 = "7c00056eFR0R",
+ subfzeo_2 = "7c000590RR.",
+ addzeo_2 = "7c000594RR.",
+ stswi_3 = "7c0005aaRR0A",
+ stfdx_3 = "7c0005aeFR0R",
+ subfmeo_2 = "7c0005d0RR.",
+ mulldo_3 = "7c0005d2RRR.",
+ addmeo_2 = "7c0005d4RR.",
+ mullwo_3 = "7c0005d6RRR.",
+ dcba_2 = "7c0005ec-RR",
+ stfdux_3 = "7c0005eeFR0R",
+ addo_3 = "7c000614RRR.",
+ lhbrx_3 = "7c00062cRR0R",
+ sraw_3 = "7c000630RR~R.",
+ srad_3 = "7c000634RR~R.",
+ srawi_3 = "7c000670RR~A.",
+ eieio_0 = "7c0006ac",
+ lfiwax_3 = "7c0006aeFR0R",
+ sthbrx_3 = "7c00072cRR0R",
+ extsh_2 = "7c000734RR~.",
+ extsb_2 = "7c000774RR~.",
+ divduo_3 = "7c000792RRR.",
+ divwou_3 = "7c000796RRR.",
+ icbi_2 = "7c0007ac-RR",
+ stfiwx_3 = "7c0007aeFR0R",
+ extsw_2 = "7c0007b4RR~.",
+ divdo_3 = "7c0007d2RRR.",
+ divwo_3 = "7c0007d6RRR.",
+ dcbz_2 = "7c0007ec-RR",
+
+ -- Primary opcode 59:
+ fdivs_3 = "ec000024FFF.",
+ fsubs_3 = "ec000028FFF.",
+ fadds_3 = "ec00002aFFF.",
+ fsqrts_2 = "ec00002cF-F.",
+ fres_2 = "ec000030F-F.",
+ fmuls_3 = "ec000032FF-F.",
+ frsqrtes_2 = "ec000034F-F.",
+ fmsubs_4 = "ec000038FFFF~.",
+ fmadds_4 = "ec00003aFFFF~.",
+ fnmsubs_4 = "ec00003cFFFF~.",
+ fnmadds_4 = "ec00003eFFFF~.",
+
+ -- Primary opcode 63:
+ fdiv_3 = "fc000024FFF.",
+ fsub_3 = "fc000028FFF.",
+ fadd_3 = "fc00002aFFF.",
+ fsqrt_2 = "fc00002cF-F.",
+ fsel_4 = "fc00002eFFFF~.",
+ fre_2 = "fc000030F-F.",
+ fmul_3 = "fc000032FF-F.",
+ frsqrte_2 = "fc000034F-F.",
+ fmsub_4 = "fc000038FFFF~.",
+ fmadd_4 = "fc00003aFFFF~.",
+ fnmsub_4 = "fc00003cFFFF~.",
+ fnmadd_4 = "fc00003eFFFF~.",
+ fcmpu_3 = "fc000000XFF",
+ fcpsgn_3 = "fc000010FFF.",
+ fcmpo_3 = "fc000040XFF",
+ mtfsb1_1 = "fc00004cA",
+ fneg_2 = "fc000050F-F.",
+ mcrfs_2 = "fc000080XX",
+ mtfsb0_1 = "fc00008cA",
+ fmr_2 = "fc000090F-F.",
+ frsp_2 = "fc000018F-F.",
+ fctiw_2 = "fc00001cF-F.",
+ fctiwz_2 = "fc00001eF-F.",
+ mtfsfi_2 = "fc00010cAA", -- NYI: upshift.
+ fnabs_2 = "fc000110F-F.",
+ fabs_2 = "fc000210F-F.",
+ frin_2 = "fc000310F-F.",
+ friz_2 = "fc000350F-F.",
+ frip_2 = "fc000390F-F.",
+ frim_2 = "fc0003d0F-F.",
+ mffs_1 = "fc00048eF.",
+ mtfsf_1 = "fc00058eF.",
+ fctid_2 = "fc00065cF-F.",
+ fctidz_2 = "fc00065eF-F.",
+ fcfid_2 = "fc00069cF-F.",
+
+ -- Primary opcode 4, SPE APU extension:
+ evaddw_3 = "10000200RRR",
+ evaddiw_3 = "10000202RAR~",
+ evsubw_3 = "10000204RRR~",
+ evsubiw_3 = "10000206RAR~",
+ evabs_2 = "10000208RR",
+ evneg_2 = "10000209RR",
+ evextsb_2 = "1000020aRR",
+ evextsh_2 = "1000020bRR",
+ evrndw_2 = "1000020cRR",
+ evcntlzw_2 = "1000020dRR",
+ evcntlsw_2 = "1000020eRR",
+ brinc_3 = "1000020fRRR",
+ evand_3 = "10000211RRR",
+ evandc_3 = "10000212RRR",
+ evxor_3 = "10000216RRR",
+ evor_3 = "10000217RRR",
+ evmr_2 = "10000217RR=",
+ evnor_3 = "10000218RRR",
+ evnot_2 = "10000218RR=",
+ eveqv_3 = "10000219RRR",
+ evorc_3 = "1000021bRRR",
+ evnand_3 = "1000021eRRR",
+ evsrwu_3 = "10000220RRR",
+ evsrws_3 = "10000221RRR",
+ evsrwiu_3 = "10000222RRA",
+ evsrwis_3 = "10000223RRA",
+ evslw_3 = "10000224RRR",
+ evslwi_3 = "10000226RRA",
+ evrlw_3 = "10000228RRR",
+ evsplati_2 = "10000229RS",
+ evrlwi_3 = "1000022aRRA",
+ evsplatfi_2 = "1000022bRS",
+ evmergehi_3 = "1000022cRRR",
+ evmergelo_3 = "1000022dRRR",
+ evcmpgtu_3 = "10000230XRR",
+ evcmpgtu_2 = "10000230-RR",
+ evcmpgts_3 = "10000231XRR",
+ evcmpgts_2 = "10000231-RR",
+ evcmpltu_3 = "10000232XRR",
+ evcmpltu_2 = "10000232-RR",
+ evcmplts_3 = "10000233XRR",
+ evcmplts_2 = "10000233-RR",
+ evcmpeq_3 = "10000234XRR",
+ evcmpeq_2 = "10000234-RR",
+ evsel_4 = "10000278RRRW",
+ evsel_3 = "10000278RRR",
+ evfsadd_3 = "10000280RRR",
+ evfssub_3 = "10000281RRR",
+ evfsabs_2 = "10000284RR",
+ evfsnabs_2 = "10000285RR",
+ evfsneg_2 = "10000286RR",
+ evfsmul_3 = "10000288RRR",
+ evfsdiv_3 = "10000289RRR",
+ evfscmpgt_3 = "1000028cXRR",
+ evfscmpgt_2 = "1000028c-RR",
+ evfscmplt_3 = "1000028dXRR",
+ evfscmplt_2 = "1000028d-RR",
+ evfscmpeq_3 = "1000028eXRR",
+ evfscmpeq_2 = "1000028e-RR",
+ evfscfui_2 = "10000290R-R",
+ evfscfsi_2 = "10000291R-R",
+ evfscfuf_2 = "10000292R-R",
+ evfscfsf_2 = "10000293R-R",
+ evfsctui_2 = "10000294R-R",
+ evfsctsi_2 = "10000295R-R",
+ evfsctuf_2 = "10000296R-R",
+ evfsctsf_2 = "10000297R-R",
+ evfsctuiz_2 = "10000298R-R",
+ evfsctsiz_2 = "1000029aR-R",
+ evfststgt_3 = "1000029cXRR",
+ evfststgt_2 = "1000029c-RR",
+ evfststlt_3 = "1000029dXRR",
+ evfststlt_2 = "1000029d-RR",
+ evfststeq_3 = "1000029eXRR",
+ evfststeq_2 = "1000029e-RR",
+ efsadd_3 = "100002c0RRR",
+ efssub_3 = "100002c1RRR",
+ efsabs_2 = "100002c4RR",
+ efsnabs_2 = "100002c5RR",
+ efsneg_2 = "100002c6RR",
+ efsmul_3 = "100002c8RRR",
+ efsdiv_3 = "100002c9RRR",
+ efscmpgt_3 = "100002ccXRR",
+ efscmpgt_2 = "100002cc-RR",
+ efscmplt_3 = "100002cdXRR",
+ efscmplt_2 = "100002cd-RR",
+ efscmpeq_3 = "100002ceXRR",
+ efscmpeq_2 = "100002ce-RR",
+ efscfd_2 = "100002cfR-R",
+ efscfui_2 = "100002d0R-R",
+ efscfsi_2 = "100002d1R-R",
+ efscfuf_2 = "100002d2R-R",
+ efscfsf_2 = "100002d3R-R",
+ efsctui_2 = "100002d4R-R",
+ efsctsi_2 = "100002d5R-R",
+ efsctuf_2 = "100002d6R-R",
+ efsctsf_2 = "100002d7R-R",
+ efsctuiz_2 = "100002d8R-R",
+ efsctsiz_2 = "100002daR-R",
+ efststgt_3 = "100002dcXRR",
+ efststgt_2 = "100002dc-RR",
+ efststlt_3 = "100002ddXRR",
+ efststlt_2 = "100002dd-RR",
+ efststeq_3 = "100002deXRR",
+ efststeq_2 = "100002de-RR",
+ efdadd_3 = "100002e0RRR",
+ efdsub_3 = "100002e1RRR",
+ efdcfuid_2 = "100002e2R-R",
+ efdcfsid_2 = "100002e3R-R",
+ efdabs_2 = "100002e4RR",
+ efdnabs_2 = "100002e5RR",
+ efdneg_2 = "100002e6RR",
+ efdmul_3 = "100002e8RRR",
+ efddiv_3 = "100002e9RRR",
+ efdctuidz_2 = "100002eaR-R",
+ efdctsidz_2 = "100002ebR-R",
+ efdcmpgt_3 = "100002ecXRR",
+ efdcmpgt_2 = "100002ec-RR",
+ efdcmplt_3 = "100002edXRR",
+ efdcmplt_2 = "100002ed-RR",
+ efdcmpeq_3 = "100002eeXRR",
+ efdcmpeq_2 = "100002ee-RR",
+ efdcfs_2 = "100002efR-R",
+ efdcfui_2 = "100002f0R-R",
+ efdcfsi_2 = "100002f1R-R",
+ efdcfuf_2 = "100002f2R-R",
+ efdcfsf_2 = "100002f3R-R",
+ efdctui_2 = "100002f4R-R",
+ efdctsi_2 = "100002f5R-R",
+ efdctuf_2 = "100002f6R-R",
+ efdctsf_2 = "100002f7R-R",
+ efdctuiz_2 = "100002f8R-R",
+ efdctsiz_2 = "100002faR-R",
+ efdtstgt_3 = "100002fcXRR",
+ efdtstgt_2 = "100002fc-RR",
+ efdtstlt_3 = "100002fdXRR",
+ efdtstlt_2 = "100002fd-RR",
+ efdtsteq_3 = "100002feXRR",
+ efdtsteq_2 = "100002fe-RR",
+ evlddx_3 = "10000300RR0R",
+ evldd_2 = "10000301R8",
+ evldwx_3 = "10000302RR0R",
+ evldw_2 = "10000303R8",
+ evldhx_3 = "10000304RR0R",
+ evldh_2 = "10000305R8",
+ evlwhex_3 = "10000310RR0R",
+ evlwhe_2 = "10000311R4",
+ evlwhoux_3 = "10000314RR0R",
+ evlwhou_2 = "10000315R4",
+ evlwhosx_3 = "10000316RR0R",
+ evlwhos_2 = "10000317R4",
+ evstddx_3 = "10000320RR0R",
+ evstdd_2 = "10000321R8",
+ evstdwx_3 = "10000322RR0R",
+ evstdw_2 = "10000323R8",
+ evstdhx_3 = "10000324RR0R",
+ evstdh_2 = "10000325R8",
+ evstwhex_3 = "10000330RR0R",
+ evstwhe_2 = "10000331R4",
+ evstwhox_3 = "10000334RR0R",
+ evstwho_2 = "10000335R4",
+ evstwwex_3 = "10000338RR0R",
+ evstwwe_2 = "10000339R4",
+ evstwwox_3 = "1000033cRR0R",
+ evstwwo_2 = "1000033dR4",
+ evmhessf_3 = "10000403RRR",
+ evmhossf_3 = "10000407RRR",
+ evmheumi_3 = "10000408RRR",
+ evmhesmi_3 = "10000409RRR",
+ evmhesmf_3 = "1000040bRRR",
+ evmhoumi_3 = "1000040cRRR",
+ evmhosmi_3 = "1000040dRRR",
+ evmhosmf_3 = "1000040fRRR",
+ evmhessfa_3 = "10000423RRR",
+ evmhossfa_3 = "10000427RRR",
+ evmheumia_3 = "10000428RRR",
+ evmhesmia_3 = "10000429RRR",
+ evmhesmfa_3 = "1000042bRRR",
+ evmhoumia_3 = "1000042cRRR",
+ evmhosmia_3 = "1000042dRRR",
+ evmhosmfa_3 = "1000042fRRR",
+ evmwhssf_3 = "10000447RRR",
+ evmwlumi_3 = "10000448RRR",
+ evmwhumi_3 = "1000044cRRR",
+ evmwhsmi_3 = "1000044dRRR",
+ evmwhsmf_3 = "1000044fRRR",
+ evmwssf_3 = "10000453RRR",
+ evmwumi_3 = "10000458RRR",
+ evmwsmi_3 = "10000459RRR",
+ evmwsmf_3 = "1000045bRRR",
+ evmwhssfa_3 = "10000467RRR",
+ evmwlumia_3 = "10000468RRR",
+ evmwhumia_3 = "1000046cRRR",
+ evmwhsmia_3 = "1000046dRRR",
+ evmwhsmfa_3 = "1000046fRRR",
+ evmwssfa_3 = "10000473RRR",
+ evmwumia_3 = "10000478RRR",
+ evmwsmia_3 = "10000479RRR",
+ evmwsmfa_3 = "1000047bRRR",
+ evmra_2 = "100004c4RR",
+ evdivws_3 = "100004c6RRR",
+ evdivwu_3 = "100004c7RRR",
+ evmwssfaa_3 = "10000553RRR",
+ evmwumiaa_3 = "10000558RRR",
+ evmwsmiaa_3 = "10000559RRR",
+ evmwsmfaa_3 = "1000055bRRR",
+ evmwssfan_3 = "100005d3RRR",
+ evmwumian_3 = "100005d8RRR",
+ evmwsmian_3 = "100005d9RRR",
+ evmwsmfan_3 = "100005dbRRR",
+ evmergehilo_3 = "1000022eRRR",
+ evmergelohi_3 = "1000022fRRR",
+ evlhhesplatx_3 = "10000308RR0R",
+ evlhhesplat_2 = "10000309R2",
+ evlhhousplatx_3 = "1000030cRR0R",
+ evlhhousplat_2 = "1000030dR2",
+ evlhhossplatx_3 = "1000030eRR0R",
+ evlhhossplat_2 = "1000030fR2",
+ evlwwsplatx_3 = "10000318RR0R",
+ evlwwsplat_2 = "10000319R4",
+ evlwhsplatx_3 = "1000031cRR0R",
+ evlwhsplat_2 = "1000031dR4",
+ evaddusiaaw_2 = "100004c0RR",
+ evaddssiaaw_2 = "100004c1RR",
+ evsubfusiaaw_2 = "100004c2RR",
+ evsubfssiaaw_2 = "100004c3RR",
+ evaddumiaaw_2 = "100004c8RR",
+ evaddsmiaaw_2 = "100004c9RR",
+ evsubfumiaaw_2 = "100004caRR",
+ evsubfsmiaaw_2 = "100004cbRR",
+ evmheusiaaw_3 = "10000500RRR",
+ evmhessiaaw_3 = "10000501RRR",
+ evmhessfaaw_3 = "10000503RRR",
+ evmhousiaaw_3 = "10000504RRR",
+ evmhossiaaw_3 = "10000505RRR",
+ evmhossfaaw_3 = "10000507RRR",
+ evmheumiaaw_3 = "10000508RRR",
+ evmhesmiaaw_3 = "10000509RRR",
+ evmhesmfaaw_3 = "1000050bRRR",
+ evmhoumiaaw_3 = "1000050cRRR",
+ evmhosmiaaw_3 = "1000050dRRR",
+ evmhosmfaaw_3 = "1000050fRRR",
+ evmhegumiaa_3 = "10000528RRR",
+ evmhegsmiaa_3 = "10000529RRR",
+ evmhegsmfaa_3 = "1000052bRRR",
+ evmhogumiaa_3 = "1000052cRRR",
+ evmhogsmiaa_3 = "1000052dRRR",
+ evmhogsmfaa_3 = "1000052fRRR",
+ evmwlusiaaw_3 = "10000540RRR",
+ evmwlssiaaw_3 = "10000541RRR",
+ evmwlumiaaw_3 = "10000548RRR",
+ evmwlsmiaaw_3 = "10000549RRR",
+ evmheusianw_3 = "10000580RRR",
+ evmhessianw_3 = "10000581RRR",
+ evmhessfanw_3 = "10000583RRR",
+ evmhousianw_3 = "10000584RRR",
+ evmhossianw_3 = "10000585RRR",
+ evmhossfanw_3 = "10000587RRR",
+ evmheumianw_3 = "10000588RRR",
+ evmhesmianw_3 = "10000589RRR",
+ evmhesmfanw_3 = "1000058bRRR",
+ evmhoumianw_3 = "1000058cRRR",
+ evmhosmianw_3 = "1000058dRRR",
+ evmhosmfanw_3 = "1000058fRRR",
+ evmhegumian_3 = "100005a8RRR",
+ evmhegsmian_3 = "100005a9RRR",
+ evmhegsmfan_3 = "100005abRRR",
+ evmhogumian_3 = "100005acRRR",
+ evmhogsmian_3 = "100005adRRR",
+ evmhogsmfan_3 = "100005afRRR",
+ evmwlusianw_3 = "100005c0RRR",
+ evmwlssianw_3 = "100005c1RRR",
+ evmwlumianw_3 = "100005c8RRR",
+ evmwlsmianw_3 = "100005c9RRR",
+
+ -- NYI: some 64 bit PowerPC and Book E instructions:
+ -- rldicl, rldicr, rldic, rldimi, rldcl, rldcr, sradi, 64 bit ext. add/sub,
+ -- extended addressing branches, cache management, loads and stores
+}
+
+-- Add mnemonics for "." variants.
+do
+ local t = {}
+ for k,v in pairs(map_op) do
+ if sub(v, -1) == "." then
+ local v2 = sub(v, 1, 7)..char(byte(v, 8)+1)..sub(v, 9, -2)
+ t[sub(k, 1, -3).."."..sub(k, -2)] = v2
+ end
+ end
+ for k,v in pairs(t) do
+ map_op[k] = v
+ end
+end
+
+-- Add more branch mnemonics.
+for cond,c in pairs(map_cond) do
+ local b1 = "b"..cond
+ local c1 = (c%4)*0x00010000 + (c < 4 and 0x01000000 or 0)
+ -- bX[l]
+ map_op[b1.."_1"] = tohex(0x40800000 + c1).."K"
+ map_op[b1.."l_1"] = tohex(0x40800001 + c1).."K"
+ map_op[b1.."_2"] = tohex(0x40800000 + c1).."-XK"
+ map_op[b1.."l_2"] = tohex(0x40800001 + c1).."-XK"
+ -- bXlr[l]
+ map_op[b1.."lr_0"] = tohex(0x4c800020 + c1)
+ map_op[b1.."lrl_0"] = tohex(0x4c800021 + c1)
+ map_op[b1.."ctr_0"] = tohex(0x4c800420 + c1)
+ map_op[b1.."ctrl_0"] = tohex(0x4c800421 + c1)
+ -- bXctr[l]
+ map_op[b1.."lr_1"] = tohex(0x4c800020 + c1).."-X"
+ map_op[b1.."lrl_1"] = tohex(0x4c800021 + c1).."-X"
+ map_op[b1.."ctr_1"] = tohex(0x4c800420 + c1).."-X"
+ map_op[b1.."ctrl_1"] = tohex(0x4c800421 + c1).."-X"
+end
+
+------------------------------------------------------------------------------
+
+local function parse_gpr(expr)
+ local tname, ovreg = match(expr, "^([%w_]+):(r[1-3]?[0-9])$")
+ local tp = map_type[tname or expr]
+ if tp then
+ local reg = ovreg or tp.reg
+ if not reg then
+ werror("type `"..(tname or expr).."' needs a register override")
+ end
+ expr = reg
+ end
+ local r = match(expr, "^r([1-3]?[0-9])$")
+ if r then
+ r = tonumber(r)
+ if r <= 31 then return r, tp end
+ end
+ werror("bad register name `"..expr.."'")
+end
+
+local function parse_fpr(expr)
+ local r = match(expr, "^f([1-3]?[0-9])$")
+ if r then
+ r = tonumber(r)
+ if r <= 31 then return r end
+ end
+ werror("bad register name `"..expr.."'")
+end
+
+local function parse_cr(expr)
+ local r = match(expr, "^cr([0-7])$")
+ if r then return tonumber(r) end
+ werror("bad condition register name `"..expr.."'")
+end
+
+local function parse_cond(expr)
+ local r, cond = match(expr, "^4%*cr([0-7])%+(%w%w)$")
+ if r then
+ r = tonumber(r)
+ local c = map_cond[cond]
+ if c and c < 4 then return r*4+c end
+ end
+ werror("bad condition bit name `"..expr.."'")
+end
+
+local function parse_imm(imm, bits, shift, scale, signed)
+ local n = tonumber(imm)
+ if n then
+ if n % 2^scale == 0 then
+ n = n / 2^scale
+ if signed then
+ if n >= 0 then
+ if n < 2^(bits-1) then return n*2^shift end
+ else
+ if n >= -(2^(bits-1))-1 then return (n+2^bits)*2^shift end
+ end
+ else
+ if n >= 0 and n <= 2^bits-1 then return n*2^shift end
+ end
+ end
+ werror("out of range immediate `"..imm.."'")
+ elseif match(imm, "^r([1-3]?[0-9])$") or
+ match(imm, "^([%w_]+):(r[1-3]?[0-9])$") then
+ werror("expected immediate operand, got register")
+ else
+ waction("IMM", (signed and 32768 or 0)+scale*1024+bits*32+shift, imm)
+ return 0
+ end
+end
+
+local function parse_disp(disp)
+ local imm, reg = match(disp, "^(.*)%(([%w_:]+)%)$")
+ if imm then
+ local r = parse_gpr(reg)
+ if r == 0 then werror("cannot use r0 in displacement") end
+ return r*65536 + parse_imm(imm, 16, 0, 0, true)
+ end
+ local reg, tailr = match(disp, "^([%w_:]+)%s*(.*)$")
+ if reg and tailr ~= "" then
+ local r, tp = parse_gpr(reg)
+ if r == 0 then werror("cannot use r0 in displacement") end
+ if tp then
+ waction("IMM", 32768+16*32, format(tp.ctypefmt, tailr))
+ return r*65536
+ end
+ end
+ werror("bad displacement `"..disp.."'")
+end
+
+local function parse_u5disp(disp, scale)
+ local imm, reg = match(disp, "^(.*)%(([%w_:]+)%)$")
+ if imm then
+ local r = parse_gpr(reg)
+ if r == 0 then werror("cannot use r0 in displacement") end
+ return r*65536 + parse_imm(imm, 5, 11, scale, false)
+ end
+ local reg, tailr = match(disp, "^([%w_:]+)%s*(.*)$")
+ if reg and tailr ~= "" then
+ local r, tp = parse_gpr(reg)
+ if r == 0 then werror("cannot use r0 in displacement") end
+ if tp then
+ waction("IMM", scale*1024+5*32+11, format(tp.ctypefmt, tailr))
+ return r*65536
+ end
+ end
+ werror("bad displacement `"..disp.."'")
+end
+
+local function parse_label(label, def)
+ local prefix = sub(label, 1, 2)
+ -- =>label (pc label reference)
+ if prefix == "=>" then
+ return "PC", 0, sub(label, 3)
+ end
+ -- ->name (global label reference)
+ if prefix == "->" then
+ return "LG", map_global[sub(label, 3)]
+ end
+ if def then
+ -- [1-9] (local label definition)
+ if match(label, "^[1-9]$") then
+ return "LG", 10+tonumber(label)
+ end
+ else
+ -- [<>][1-9] (local label reference)
+ local dir, lnum = match(label, "^([<>])([1-9])$")
+ if dir then -- Fwd: 1-9, Bkwd: 11-19.
+ return "LG", lnum + (dir == ">" and 0 or 10)
+ end
+ -- extern label (extern label reference)
+ local extname = match(label, "^extern%s+(%S+)$")
+ if extname then
+ return "EXT", map_extern[extname]
+ end
+ end
+ werror("bad label `"..label.."'")
+end
+
+------------------------------------------------------------------------------
+
+-- Handle opcodes defined with template strings.
+map_op[".template__"] = function(params, template, nparams)
+ if not params then return sub(template, 9) end
+ local op = tonumber(sub(template, 1, 8), 16)
+ local n, rs = 1, 26
+
+ -- Limit number of section buffer positions used by a single dasm_put().
+ -- A single opcode needs a maximum of 3 positions (rlwinm).
+ if secpos+3 > maxsecpos then wflush() end
+ local pos = wpos()
+
+ -- Process each character.
+ for p in gmatch(sub(template, 9), ".") do
+ if p == "R" then
+ rs = rs - 5; op = op + parse_gpr(params[n]) * 2^rs; n = n + 1
+ elseif p == "F" then
+ rs = rs - 5; op = op + parse_fpr(params[n]) * 2^rs; n = n + 1
+ elseif p == "A" then
+ rs = rs - 5; op = op + parse_imm(params[n], 5, rs, 0, false); n = n + 1
+ elseif p == "S" then
+ rs = rs - 5; op = op + parse_imm(params[n], 5, rs, 0, true); n = n + 1
+ elseif p == "I" then
+ op = op + parse_imm(params[n], 16, 0, 0, true); n = n + 1
+ elseif p == "U" then
+ op = op + parse_imm(params[n], 16, 0, 0, false); n = n + 1
+ elseif p == "D" then
+ op = op + parse_disp(params[n]); n = n + 1
+ elseif p == "2" then
+ op = op + parse_u5disp(params[n], 1); n = n + 1
+ elseif p == "4" then
+ op = op + parse_u5disp(params[n], 2); n = n + 1
+ elseif p == "8" then
+ op = op + parse_u5disp(params[n], 3); n = n + 1
+ elseif p == "C" then
+ rs = rs - 5; op = op + parse_cond(params[n]) * 2^rs; n = n + 1
+ elseif p == "X" then
+ rs = rs - 5; op = op + parse_cr(params[n]) * 2^(rs+2); n = n + 1
+ elseif p == "W" then
+ op = op + parse_cr(params[n]); n = n + 1
+ elseif p == "J" or p == "K" then
+ local mode, n, s = parse_label(params[n], false)
+ if p == "K" then n = n + 2048 end
+ waction("REL_"..mode, n, s, 1)
+ n = n + 1
+ elseif p == "0" then
+ local mm = 2^rs
+ local t = op % mm
+ if ((op - t) / mm) % 32 == 0 then werror("cannot use r0") end
+ elseif p == "=" or p == "%" then
+ local mm = 2^(rs + (p == "%" and 5 or 0))
+ local t = ((op - op % mm) / mm) % 32
+ rs = rs - 5
+ op = op + t * 2^rs
+ elseif p == "~" then
+ local mm = 2^rs
+ local t1l = op % mm
+ local t1h = (op - t1l) / mm
+ local t2l = t1h % 32
+ local t2h = (t1h - t2l) / 32
+ local t3l = t2h % 32
+ op = ((t2h - t3l + t2l)*32 + t3l)*mm + t1l
+ elseif p == "-" then
+ rs = rs - 5
+ elseif p == "." then
+ -- Ignored.
+ else
+ assert(false)
+ end
+ end
+ wputpos(pos, op)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode to mark the position where the action list is to be emitted.
+map_op[".actionlist_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeactions(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the global enum is to be emitted.
+map_op[".globals_1"] = function(params)
+ if not params then return "prefix" end
+ local prefix = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeglobals(out, prefix) end)
+end
+
+-- Pseudo-opcode to mark the position where the global names are to be emitted.
+map_op[".globalnames_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeglobalnames(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the extern names are to be emitted.
+map_op[".externnames_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeexternnames(out, name) end)
+end
+
+------------------------------------------------------------------------------
+
+-- Label pseudo-opcode (converted from trailing colon form).
+map_op[".label_1"] = function(params)
+ if not params then return "[1-9] | ->global | =>pcexpr" end
+ if secpos+1 > maxsecpos then wflush() end
+ local mode, n, s = parse_label(params[1], true)
+ if mode == "EXT" then werror("bad label definition") end
+ waction("LABEL_"..mode, n, s, 1)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcodes for data storage.
+map_op[".long_*"] = function(params)
+ if not params then return "imm..." end
+ for _,p in ipairs(params) do
+ local n = tonumber(p)
+ if not n then werror("bad immediate `"..p.."'") end
+ if n < 0 then n = n + 2^32 end
+ wputw(n)
+ if secpos+2 > maxsecpos then wflush() end
+ end
+end
+
+-- Alignment pseudo-opcode.
+map_op[".align_1"] = function(params)
+ if not params then return "numpow2" end
+ if secpos+1 > maxsecpos then wflush() end
+ local align = tonumber(params[1])
+ if align then
+ local x = align
+ -- Must be a power of 2 in the range (2 ... 256).
+ for i=1,8 do
+ x = x / 2
+ if x == 1 then
+ waction("ALIGN", align-1, nil, 1) -- Action byte is 2**n-1.
+ return
+ end
+ end
+ end
+ werror("bad alignment")
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode for (primitive) type definitions (map to C types).
+map_op[".type_3"] = function(params, nparams)
+ if not params then
+ return nparams == 2 and "name, ctype" or "name, ctype, reg"
+ end
+ local name, ctype, reg = params[1], params[2], params[3]
+ if not match(name, "^[%a_][%w_]*$") then
+ werror("bad type name `"..name.."'")
+ end
+ local tp = map_type[name]
+ if tp then
+ werror("duplicate type `"..name.."'")
+ end
+ -- Add #type to defines. A bit unclean to put it in map_archdef.
+ map_archdef["#"..name] = "sizeof("..ctype..")"
+ -- Add new type and emit shortcut define.
+ local num = ctypenum + 1
+ map_type[name] = {
+ ctype = ctype,
+ ctypefmt = format("Dt%X(%%s)", num),
+ reg = reg,
+ }
+ wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
+ ctypenum = num
+end
+map_op[".type_2"] = map_op[".type_3"]
+
+-- Dump type definitions.
+local function dumptypes(out, lvl)
+ local t = {}
+ for name in pairs(map_type) do t[#t+1] = name end
+ sort(t)
+ out:write("Type definitions:\n")
+ for _,name in ipairs(t) do
+ local tp = map_type[name]
+ local reg = tp.reg or ""
+ out:write(format(" %-20s %-20s %s\n", name, tp.ctype, reg))
+ end
+ out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Set the current section.
+function _M.section(num)
+ waction("SECTION", num)
+ wflush(true) -- SECTION is a terminal action.
+end
+
+------------------------------------------------------------------------------
+
+-- Dump architecture description.
+function _M.dumparch(out)
+ out:write(format("DynASM %s version %s, released %s\n\n",
+ _info.arch, _info.version, _info.release))
+ dumpactions(out)
+end
+
+-- Dump all user defined elements.
+function _M.dumpdef(out, lvl)
+ dumptypes(out, lvl)
+ dumpglobals(out, lvl)
+ dumpexterns(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Pass callbacks from/to the DynASM core.
+function _M.passcb(wl, we, wf, ww)
+ wline, werror, wfatal, wwarn = wl, we, wf, ww
+ return wflush
+end
+
+-- Setup the arch-specific module.
+function _M.setup(arch, opt)
+ g_arch, g_opt = arch, opt
+end
+
+-- Merge the core maps and the arch-specific maps.
+function _M.mergemaps(map_coreop, map_def)
+ setmetatable(map_op, { __index = map_coreop })
+ setmetatable(map_def, { __index = map_archdef })
+ return map_op, map_def
+end
+
+return _M
+
+------------------------------------------------------------------------------
+
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_proto.h b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_proto.h new file mode 100644 index 0000000000..94a79a163d --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_proto.h @@ -0,0 +1,83 @@ +/*
+** DynASM encoding engine prototypes.
+** Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+** Released under the MIT/X license. See dynasm.lua for full copyright notice.
+*/
+
+#ifndef _DASM_PROTO_H
+#define _DASM_PROTO_H
+
+#include <stddef.h>
+#include <stdarg.h>
+
+#define DASM_IDENT "DynASM 1.3.0"
+#define DASM_VERSION 10300 /* 1.3.0 */
+
+#ifndef Dst_DECL
+#define Dst_DECL dasm_State **Dst
+#endif
+
+#ifndef Dst_REF
+#define Dst_REF (*Dst)
+#endif
+
+#ifndef DASM_FDEF
+#define DASM_FDEF extern
+#endif
+
+#ifndef DASM_M_GROW
+#define DASM_M_GROW(ctx, t, p, sz, need) \
+ do { \
+ size_t _sz = (sz), _need = (need); \
+ if (_sz < _need) { \
+ if (_sz < 16) _sz = 16; \
+ while (_sz < _need) _sz += _sz; \
+ (p) = (t *)realloc((p), _sz); \
+ if ((p) == NULL) exit(1); \
+ (sz) = _sz; \
+ } \
+ } while(0)
+#endif
+
+#ifndef DASM_M_FREE
+#define DASM_M_FREE(ctx, p, sz) free(p)
+#endif
+
+/* Internal DynASM encoder state. */
+typedef struct dasm_State dasm_State;
+
+
+/* Initialize and free DynASM state. */
+DASM_FDEF void dasm_init(Dst_DECL, int maxsection);
+DASM_FDEF void dasm_free(Dst_DECL);
+
+/* Setup global array. Must be called before dasm_setup(). */
+DASM_FDEF void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl);
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+DASM_FDEF void dasm_growpc(Dst_DECL, unsigned int maxpc);
+
+/* Setup encoder. */
+DASM_FDEF void dasm_setup(Dst_DECL, const void *actionlist);
+
+/* Feed encoder with actions. Calls are generated by pre-processor. */
+DASM_FDEF void dasm_put(Dst_DECL, int start, ...);
+
+/* Link sections and return the resulting size. */
+DASM_FDEF int dasm_link(Dst_DECL, size_t *szp);
+
+/* Encode sections into buffer. */
+DASM_FDEF int dasm_encode(Dst_DECL, void *buffer);
+
+/* Get PC label offset. */
+DASM_FDEF int dasm_getpclabel(Dst_DECL, unsigned int pc);
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+DASM_FDEF int dasm_checkstep(Dst_DECL, int secmatch);
+#else
+#define dasm_checkstep(a, b) 0
+#endif
+
+
+#endif /* _DASM_PROTO_H */
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x64.lua b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x64.lua new file mode 100644 index 0000000000..36b7e5bd93 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x64.lua @@ -0,0 +1,12 @@ +------------------------------------------------------------------------------
+-- DynASM x64 module.
+--
+-- Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+-- This module just sets 64 bit mode for the combined x86/x64 module.
+-- All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+x64 = true -- Using a global is an ugly, but effective solution.
+return require("dasm_x86")
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x86.h b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x86.h new file mode 100644 index 0000000000..83c6eb5a0f --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x86.h @@ -0,0 +1,470 @@ +/*
+** DynASM x86 encoding engine.
+** Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+** Released under the MIT/X license. See dynasm.lua for full copyright notice.
+*/
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define DASM_ARCH "x86"
+
+#ifndef DASM_EXTERN
+#define DASM_EXTERN(a,b,c,d) 0
+#endif
+
+/* Action definitions. DASM_STOP must be 255. */
+enum {
+ DASM_DISP = 233,
+ DASM_IMM_S, DASM_IMM_B, DASM_IMM_W, DASM_IMM_D, DASM_IMM_WB, DASM_IMM_DB,
+ DASM_VREG, DASM_SPACE, DASM_SETLABEL, DASM_REL_A, DASM_REL_LG, DASM_REL_PC,
+ DASM_IMM_LG, DASM_IMM_PC, DASM_LABEL_LG, DASM_LABEL_PC, DASM_ALIGN,
+ DASM_EXTERN, DASM_ESC, DASM_MARK, DASM_SECTION, DASM_STOP
+};
+
+/* Maximum number of section buffer positions for a single dasm_put() call. */
+#define DASM_MAXSECPOS 25
+
+/* DynASM encoder status codes. Action list offset or number are or'ed in. */
+#define DASM_S_OK 0x00000000
+#define DASM_S_NOMEM 0x01000000
+#define DASM_S_PHASE 0x02000000
+#define DASM_S_MATCH_SEC 0x03000000
+#define DASM_S_RANGE_I 0x11000000
+#define DASM_S_RANGE_SEC 0x12000000
+#define DASM_S_RANGE_LG 0x13000000
+#define DASM_S_RANGE_PC 0x14000000
+#define DASM_S_RANGE_VREG 0x15000000
+#define DASM_S_UNDEF_L 0x21000000
+#define DASM_S_UNDEF_PC 0x22000000
+
+/* Macros to convert positions (8 bit section + 24 bit index). */
+#define DASM_POS2IDX(pos) ((pos)&0x00ffffff)
+#define DASM_POS2BIAS(pos) ((pos)&0xff000000)
+#define DASM_SEC2POS(sec) ((sec)<<24)
+#define DASM_POS2SEC(pos) ((pos)>>24)
+#define DASM_POS2PTR(D, pos) (D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
+
+/* Action list type. */
+typedef const unsigned char *dasm_ActList;
+
+/* Per-section structure. */
+typedef struct dasm_Section {
+ int *rbuf; /* Biased buffer pointer (negative section bias). */
+ int *buf; /* True buffer pointer. */
+ size_t bsize; /* Buffer size in bytes. */
+ int pos; /* Biased buffer position. */
+ int epos; /* End of biased buffer position - max single put. */
+ int ofs; /* Byte offset into section. */
+} dasm_Section;
+
+/* Core structure holding the DynASM encoding state. */
+struct dasm_State {
+ size_t psize; /* Allocated size of this structure. */
+ dasm_ActList actionlist; /* Current actionlist pointer. */
+ int *lglabels; /* Local/global chain/pos ptrs. */
+ size_t lgsize;
+ int *pclabels; /* PC label chains/pos ptrs. */
+ size_t pcsize;
+ void **globals; /* Array of globals (bias -10). */
+ dasm_Section *section; /* Pointer to active section. */
+ size_t codesize; /* Total size of all code sections. */
+ int maxsection; /* 0 <= sectionidx < maxsection. */
+ int status; /* Status code. */
+ dasm_Section sections[1]; /* All sections. Alloc-extended. */
+};
+
+/* The size of the core structure depends on the max. number of sections. */
+#define DASM_PSZ(ms) (sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
+
+
+/* Initialize DynASM state. */
+void dasm_init(Dst_DECL, int maxsection)
+{
+ dasm_State *D;
+ size_t psz = 0;
+ int i;
+ Dst_REF = NULL;
+ DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
+ D = Dst_REF;
+ D->psize = psz;
+ D->lglabels = NULL;
+ D->lgsize = 0;
+ D->pclabels = NULL;
+ D->pcsize = 0;
+ D->globals = NULL;
+ D->maxsection = maxsection;
+ for (i = 0; i < maxsection; i++) {
+ D->sections[i].buf = NULL; /* Need this for pass3. */
+ D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
+ D->sections[i].bsize = 0;
+ D->sections[i].epos = 0; /* Wrong, but is recalculated after resize. */
+ }
+}
+
+/* Free DynASM state. */
+void dasm_free(Dst_DECL)
+{
+ dasm_State *D = Dst_REF;
+ int i;
+ for (i = 0; i < D->maxsection; i++)
+ if (D->sections[i].buf)
+ DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
+ if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
+ if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
+ DASM_M_FREE(Dst, D, D->psize);
+}
+
+/* Setup global label array. Must be called before dasm_setup(). */
+void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
+{
+ dasm_State *D = Dst_REF;
+ D->globals = gl - 10; /* Negative bias to compensate for locals. */
+ DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
+}
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+void dasm_growpc(Dst_DECL, unsigned int maxpc)
+{
+ dasm_State *D = Dst_REF;
+ size_t osz = D->pcsize;
+ DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
+ memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
+}
+
+/* Setup encoder. */
+void dasm_setup(Dst_DECL, const void *actionlist)
+{
+ dasm_State *D = Dst_REF;
+ int i;
+ D->actionlist = (dasm_ActList)actionlist;
+ D->status = DASM_S_OK;
+ D->section = &D->sections[0];
+ memset((void *)D->lglabels, 0, D->lgsize);
+ if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
+ for (i = 0; i < D->maxsection; i++) {
+ D->sections[i].pos = DASM_SEC2POS(i);
+ D->sections[i].ofs = 0;
+ }
+}
+
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+ do { if (!(x)) { \
+ D->status = DASM_S_##st|(int)(p-D->actionlist-1); return; } } while (0)
+#define CKPL(kind, st) \
+ do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
+ D->status=DASM_S_RANGE_##st|(int)(p-D->actionlist-1); return; } } while (0)
+#else
+#define CK(x, st) ((void)0)
+#define CKPL(kind, st) ((void)0)
+#endif
+
+/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
+void dasm_put(Dst_DECL, int start, ...)
+{
+ va_list ap;
+ dasm_State *D = Dst_REF;
+ dasm_ActList p = D->actionlist + start;
+ dasm_Section *sec = D->section;
+ int pos = sec->pos, ofs = sec->ofs, mrm = 4;
+ int *b;
+
+ if (pos >= sec->epos) {
+ DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
+ sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
+ sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
+ sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
+ }
+
+ b = sec->rbuf;
+ b[pos++] = start;
+
+ va_start(ap, start);
+ while (1) {
+ int action = *p++;
+ if (action < DASM_DISP) {
+ ofs++;
+ } else if (action <= DASM_REL_A) {
+ int n = va_arg(ap, int);
+ b[pos++] = n;
+ switch (action) {
+ case DASM_DISP:
+ if (n == 0) { if ((mrm&7) == 4) mrm = p[-2]; if ((mrm&7) != 5) break; }
+ case DASM_IMM_DB: if (((n+128)&-256) == 0) goto ob;
+ case DASM_REL_A: /* Assumes ptrdiff_t is int. !x64 */
+ case DASM_IMM_D: ofs += 4; break;
+ case DASM_IMM_S: CK(((n+128)&-256) == 0, RANGE_I); goto ob;
+ case DASM_IMM_B: CK((n&-256) == 0, RANGE_I); ob: ofs++; break;
+ case DASM_IMM_WB: if (((n+128)&-256) == 0) goto ob;
+ case DASM_IMM_W: CK((n&-65536) == 0, RANGE_I); ofs += 2; break;
+ case DASM_SPACE: p++; ofs += n; break;
+ case DASM_SETLABEL: b[pos-2] = -0x40000000; break; /* Neg. label ofs. */
+ case DASM_VREG: CK((n&-8) == 0 && (n != 4 || (*p&1) == 0), RANGE_VREG);
+ if (*p++ == 1 && *p == DASM_DISP) mrm = n; continue;
+ }
+ mrm = 4;
+ } else {
+ int *pl, n;
+ switch (action) {
+ case DASM_REL_LG:
+ case DASM_IMM_LG:
+ n = *p++; pl = D->lglabels + n;
+ if (n <= 246) { CKPL(lg, LG); goto putrel; } /* Bkwd rel or global. */
+ pl -= 246; n = *pl;
+ if (n < 0) n = 0; /* Start new chain for fwd rel if label exists. */
+ goto linkrel;
+ case DASM_REL_PC:
+ case DASM_IMM_PC: pl = D->pclabels + va_arg(ap, int); CKPL(pc, PC);
+ putrel:
+ n = *pl;
+ if (n < 0) { /* Label exists. Get label pos and store it. */
+ b[pos] = -n;
+ } else {
+ linkrel:
+ b[pos] = n; /* Else link to rel chain, anchored at label. */
+ *pl = pos;
+ }
+ pos++;
+ ofs += 4; /* Maximum offset needed. */
+ if (action == DASM_REL_LG || action == DASM_REL_PC)
+ b[pos++] = ofs; /* Store pass1 offset estimate. */
+ break;
+ case DASM_LABEL_LG: pl = D->lglabels + *p++; CKPL(lg, LG); goto putlabel;
+ case DASM_LABEL_PC: pl = D->pclabels + va_arg(ap, int); CKPL(pc, PC);
+ putlabel:
+ n = *pl; /* n > 0: Collapse rel chain and replace with label pos. */
+ while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos; }
+ *pl = -pos; /* Label exists now. */
+ b[pos++] = ofs; /* Store pass1 offset estimate. */
+ break;
+ case DASM_ALIGN:
+ ofs += *p++; /* Maximum alignment needed (arg is 2**n-1). */
+ b[pos++] = ofs; /* Store pass1 offset estimate. */
+ break;
+ case DASM_EXTERN: p += 2; ofs += 4; break;
+ case DASM_ESC: p++; ofs++; break;
+ case DASM_MARK: mrm = p[-2]; break;
+ case DASM_SECTION:
+ n = *p; CK(n < D->maxsection, RANGE_SEC); D->section = &D->sections[n];
+ case DASM_STOP: goto stop;
+ }
+ }
+ }
+stop:
+ va_end(ap);
+ sec->pos = pos;
+ sec->ofs = ofs;
+}
+#undef CK
+
+/* Pass 2: Link sections, shrink branches/aligns, fix label offsets. */
+int dasm_link(Dst_DECL, size_t *szp)
+{
+ dasm_State *D = Dst_REF;
+ int secnum;
+ int ofs = 0;
+
+#ifdef DASM_CHECKS
+ *szp = 0;
+ if (D->status != DASM_S_OK) return D->status;
+ {
+ int pc;
+ for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
+ if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
+ }
+#endif
+
+ { /* Handle globals not defined in this translation unit. */
+ int idx;
+ for (idx = 10; idx*sizeof(int) < D->lgsize; idx++) {
+ int n = D->lglabels[idx];
+ /* Undefined label: Collapse rel chain and replace with marker (< 0). */
+ while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
+ }
+ }
+
+ /* Combine all code sections. No support for data sections (yet). */
+ for (secnum = 0; secnum < D->maxsection; secnum++) {
+ dasm_Section *sec = D->sections + secnum;
+ int *b = sec->rbuf;
+ int pos = DASM_SEC2POS(secnum);
+ int lastpos = sec->pos;
+
+ while (pos != lastpos) {
+ dasm_ActList p = D->actionlist + b[pos++];
+ while (1) {
+ int op, action = *p++;
+ switch (action) {
+ case DASM_REL_LG: p++; op = p[-3]; goto rel_pc;
+ case DASM_REL_PC: op = p[-2]; rel_pc: {
+ int shrink = op == 0xe9 ? 3 : ((op&0xf0) == 0x80 ? 4 : 0);
+ if (shrink) { /* Shrinkable branch opcode? */
+ int lofs, lpos = b[pos];
+ if (lpos < 0) goto noshrink; /* Ext global? */
+ lofs = *DASM_POS2PTR(D, lpos);
+ if (lpos > pos) { /* Fwd label: add cumulative section offsets. */
+ int i;
+ for (i = secnum; i < DASM_POS2SEC(lpos); i++)
+ lofs += D->sections[i].ofs;
+ } else {
+ lofs -= ofs; /* Bkwd label: unfix offset. */
+ }
+ lofs -= b[pos+1]; /* Short branch ok? */
+ if (lofs >= -128-shrink && lofs <= 127) ofs -= shrink; /* Yes. */
+ else { noshrink: shrink = 0; } /* No, cannot shrink op. */
+ }
+ b[pos+1] = shrink;
+ pos += 2;
+ break;
+ }
+ case DASM_SPACE: case DASM_IMM_LG: case DASM_VREG: p++;
+ case DASM_DISP: case DASM_IMM_S: case DASM_IMM_B: case DASM_IMM_W:
+ case DASM_IMM_D: case DASM_IMM_WB: case DASM_IMM_DB:
+ case DASM_SETLABEL: case DASM_REL_A: case DASM_IMM_PC: pos++; break;
+ case DASM_LABEL_LG: p++;
+ case DASM_LABEL_PC: b[pos++] += ofs; break; /* Fix label offset. */
+ case DASM_ALIGN: ofs -= (b[pos++]+ofs)&*p++; break; /* Adjust ofs. */
+ case DASM_EXTERN: p += 2; break;
+ case DASM_ESC: p++; break;
+ case DASM_MARK: break;
+ case DASM_SECTION: case DASM_STOP: goto stop;
+ }
+ }
+ stop: (void)0;
+ }
+ ofs += sec->ofs; /* Next section starts right after current section. */
+ }
+
+ D->codesize = ofs; /* Total size of all code sections */
+ *szp = ofs;
+ return DASM_S_OK;
+}
+
+#define dasmb(x) *cp++ = (unsigned char)(x)
+#ifndef DASM_ALIGNED_WRITES
+#define dasmw(x) \
+ do { *((unsigned short *)cp) = (unsigned short)(x); cp+=2; } while (0)
+#define dasmd(x) \
+ do { *((unsigned int *)cp) = (unsigned int)(x); cp+=4; } while (0)
+#else
+#define dasmw(x) do { dasmb(x); dasmb((x)>>8); } while (0)
+#define dasmd(x) do { dasmw(x); dasmw((x)>>16); } while (0)
+#endif
+
+/* Pass 3: Encode sections. */
+int dasm_encode(Dst_DECL, void *buffer)
+{
+ dasm_State *D = Dst_REF;
+ unsigned char *base = (unsigned char *)buffer;
+ unsigned char *cp = base;
+ int secnum;
+
+ /* Encode all code sections. No support for data sections (yet). */
+ for (secnum = 0; secnum < D->maxsection; secnum++) {
+ dasm_Section *sec = D->sections + secnum;
+ int *b = sec->buf;
+ int *endb = sec->rbuf + sec->pos;
+
+ while (b != endb) {
+ dasm_ActList p = D->actionlist + *b++;
+ unsigned char *mark = NULL;
+ while (1) {
+ int action = *p++;
+ int n = (action >= DASM_DISP && action <= DASM_ALIGN) ? *b++ : 0;
+ switch (action) {
+ case DASM_DISP: if (!mark) mark = cp; {
+ unsigned char *mm = mark;
+ if (*p != DASM_IMM_DB && *p != DASM_IMM_WB) mark = NULL;
+ if (n == 0) { int mrm = mm[-1]&7; if (mrm == 4) mrm = mm[0]&7;
+ if (mrm != 5) { mm[-1] -= 0x80; break; } }
+ if (((n+128) & -256) != 0) goto wd; else mm[-1] -= 0x40;
+ }
+ case DASM_IMM_S: case DASM_IMM_B: wb: dasmb(n); break;
+ case DASM_IMM_DB: if (((n+128)&-256) == 0) {
+ db: if (!mark) mark = cp; mark[-2] += 2; mark = NULL; goto wb;
+ } else mark = NULL;
+ case DASM_IMM_D: wd: dasmd(n); break;
+ case DASM_IMM_WB: if (((n+128)&-256) == 0) goto db; else mark = NULL;
+ case DASM_IMM_W: dasmw(n); break;
+ case DASM_VREG: { int t = *p++; if (t >= 2) n<<=3; cp[-1] |= n; break; }
+ case DASM_REL_LG: p++; if (n >= 0) goto rel_pc;
+ b++; n = (int)(ptrdiff_t)D->globals[-n];
+ case DASM_REL_A: rel_a: n -= (int)(ptrdiff_t)(cp+4); goto wd; /* !x64 */
+ case DASM_REL_PC: rel_pc: {
+ int shrink = *b++;
+ int *pb = DASM_POS2PTR(D, n); if (*pb < 0) { n = pb[1]; goto rel_a; }
+ n = *pb - ((int)(cp-base) + 4-shrink);
+ if (shrink == 0) goto wd;
+ if (shrink == 4) { cp--; cp[-1] = *cp-0x10; } else cp[-1] = 0xeb;
+ goto wb;
+ }
+ case DASM_IMM_LG:
+ p++; if (n < 0) { n = (int)(ptrdiff_t)D->globals[-n]; goto wd; }
+ case DASM_IMM_PC: {
+ int *pb = DASM_POS2PTR(D, n);
+ n = *pb < 0 ? pb[1] : (*pb + (int)(ptrdiff_t)base);
+ goto wd;
+ }
+ case DASM_LABEL_LG: {
+ int idx = *p++;
+ if (idx >= 10)
+ D->globals[idx] = (void *)(base + (*p == DASM_SETLABEL ? *b : n));
+ break;
+ }
+ case DASM_LABEL_PC: case DASM_SETLABEL: break;
+ case DASM_SPACE: { int fill = *p++; while (n--) *cp++ = fill; break; }
+ case DASM_ALIGN:
+ n = *p++;
+ while (((cp-base) & n)) *cp++ = 0x90; /* nop */
+ break;
+ case DASM_EXTERN: n = DASM_EXTERN(Dst, cp, p[1], *p); p += 2; goto wd;
+ case DASM_MARK: mark = cp; break;
+ case DASM_ESC: action = *p++;
+ default: *cp++ = action; break;
+ case DASM_SECTION: case DASM_STOP: goto stop;
+ }
+ }
+ stop: (void)0;
+ }
+ }
+
+ if (base + D->codesize != cp) /* Check for phase errors. */
+ return DASM_S_PHASE;
+ return DASM_S_OK;
+}
+
+/* Get PC label offset. */
+int dasm_getpclabel(Dst_DECL, unsigned int pc)
+{
+ dasm_State *D = Dst_REF;
+ if (pc*sizeof(int) < D->pcsize) {
+ int pos = D->pclabels[pc];
+ if (pos < 0) return *DASM_POS2PTR(D, -pos);
+ if (pos > 0) return -1; /* Undefined. */
+ }
+ return -2; /* Unused or out of range. */
+}
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+int dasm_checkstep(Dst_DECL, int secmatch)
+{
+ dasm_State *D = Dst_REF;
+ if (D->status == DASM_S_OK) {
+ int i;
+ for (i = 1; i <= 9; i++) {
+ if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_L|i; break; }
+ D->lglabels[i] = 0;
+ }
+ }
+ if (D->status == DASM_S_OK && secmatch >= 0 &&
+ D->section != &D->sections[secmatch])
+ D->status = DASM_S_MATCH_SEC|(int)(D->section-D->sections);
+ return D->status;
+}
+#endif
+
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x86.lua b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x86.lua new file mode 100644 index 0000000000..efaa290441 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dasm_x86.lua @@ -0,0 +1,1931 @@ +------------------------------------------------------------------------------
+-- DynASM x86/x64 module.
+--
+-- Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+
+local x64 = x64
+
+-- Module information:
+local _info = {
+ arch = x64 and "x64" or "x86",
+ description = "DynASM x86/x64 module",
+ version = "1.3.0",
+ vernum = 10300,
+ release = "2011-05-05",
+ author = "Mike Pall",
+ license = "MIT",
+}
+
+-- Exported glue functions for the arch-specific module.
+local _M = { _info = _info }
+
+-- Cache library functions.
+local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
+local assert, unpack, setmetatable = assert, unpack or table.unpack, setmetatable
+local _s = string
+local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
+local find, match, gmatch, gsub = _s.find, _s.match, _s.gmatch, _s.gsub
+local concat, sort = table.concat, table.sort
+
+-- Inherited tables and callbacks.
+local g_opt, g_arch
+local wline, werror, wfatal, wwarn
+
+-- Action name list.
+-- CHECK: Keep this in sync with the C code!
+local action_names = {
+ -- int arg, 1 buffer pos:
+ "DISP", "IMM_S", "IMM_B", "IMM_W", "IMM_D", "IMM_WB", "IMM_DB",
+ -- action arg (1 byte), int arg, 1 buffer pos (reg/num):
+ "VREG", "SPACE", -- !x64: VREG support NYI.
+ -- ptrdiff_t arg, 1 buffer pos (address): !x64
+ "SETLABEL", "REL_A",
+ -- action arg (1 byte) or int arg, 2 buffer pos (link, offset):
+ "REL_LG", "REL_PC",
+ -- action arg (1 byte) or int arg, 1 buffer pos (link):
+ "IMM_LG", "IMM_PC",
+ -- action arg (1 byte) or int arg, 1 buffer pos (offset):
+ "LABEL_LG", "LABEL_PC",
+ -- action arg (1 byte), 1 buffer pos (offset):
+ "ALIGN",
+ -- action args (2 bytes), no buffer pos.
+ "EXTERN",
+ -- action arg (1 byte), no buffer pos.
+ "ESC",
+ -- no action arg, no buffer pos.
+ "MARK",
+ -- action arg (1 byte), no buffer pos, terminal action:
+ "SECTION",
+ -- no args, no buffer pos, terminal action:
+ "STOP"
+}
+
+-- Maximum number of section buffer positions for dasm_put().
+-- CHECK: Keep this in sync with the C code!
+local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
+
+-- Action name -> action number (dynamically generated below).
+local map_action = {}
+-- First action number. Everything below does not need to be escaped.
+local actfirst = 256-#action_names
+
+-- Action list buffer and string (only used to remove dupes).
+local actlist = {}
+local actstr = ""
+
+-- Argument list for next dasm_put(). Start with offset 0 into action list.
+local actargs = { 0 }
+
+-- Current number of section buffer positions for dasm_put().
+local secpos = 1
+
+------------------------------------------------------------------------------
+
+-- Compute action numbers for action names.
+for n,name in ipairs(action_names) do
+ local num = actfirst + n - 1
+ map_action[name] = num
+end
+
+-- Dump action names and numbers.
+local function dumpactions(out)
+ out:write("DynASM encoding engine action codes:\n")
+ for n,name in ipairs(action_names) do
+ local num = map_action[name]
+ out:write(format(" %-10s %02X %d\n", name, num, num))
+ end
+ out:write("\n")
+end
+
+-- Write action list buffer as a huge static C array.
+local function writeactions(out, name)
+ local nn = #actlist
+ local last = actlist[nn] or 255
+ actlist[nn] = nil -- Remove last byte.
+ if nn == 0 then nn = 1 end
+ out:write("static const unsigned char ", name, "[", nn, "] = {\n")
+ local s = " "
+ for n,b in ipairs(actlist) do
+ s = s..b..","
+ if #s >= 75 then
+ assert(out:write(s, "\n"))
+ s = " "
+ end
+ end
+ out:write(s, last, "\n};\n\n") -- Add last byte back.
+end
+
+------------------------------------------------------------------------------
+
+-- Add byte to action list.
+local function wputxb(n)
+ assert(n >= 0 and n <= 255 and n % 1 == 0, "byte out of range")
+ actlist[#actlist+1] = n
+end
+
+-- Add action to list with optional arg. Advance buffer pos, too.
+local function waction(action, a, num)
+ wputxb(assert(map_action[action], "bad action name `"..action.."'"))
+ if a then actargs[#actargs+1] = a end
+ if a or num then secpos = secpos + (num or 1) end
+end
+
+-- Add call to embedded DynASM C code.
+local function wcall(func, args)
+ wline(format("dasm_%s(Dst, %s);", func, concat(args, ", ")), true)
+end
+
+-- Delete duplicate action list chunks. A tad slow, but so what.
+local function dedupechunk(offset)
+ local al, as = actlist, actstr
+ local chunk = char(unpack(al, offset+1, #al))
+ local orig = find(as, chunk, 1, true)
+ if orig then
+ actargs[1] = orig-1 -- Replace with original offset.
+ for i=offset+1,#al do al[i] = nil end -- Kill dupe.
+ else
+ actstr = as..chunk
+ end
+end
+
+-- Flush action list (intervening C code or buffer pos overflow).
+local function wflush(term)
+ local offset = actargs[1]
+ if #actlist == offset then return end -- Nothing to flush.
+ if not term then waction("STOP") end -- Terminate action list.
+ dedupechunk(offset)
+ wcall("put", actargs) -- Add call to dasm_put().
+ actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
+ secpos = 1 -- The actionlist offset occupies a buffer position, too.
+end
+
+-- Put escaped byte.
+local function wputb(n)
+ if n >= actfirst then waction("ESC") end -- Need to escape byte.
+ wputxb(n)
+end
+
+------------------------------------------------------------------------------
+
+-- Global label name -> global label number. With auto assignment on 1st use.
+local next_global = 10
+local map_global = setmetatable({}, { __index = function(t, name)
+ if not match(name, "^[%a_][%w_@]*$") then werror("bad global label") end
+ local n = next_global
+ if n > 246 then werror("too many global labels") end
+ next_global = n + 1
+ t[name] = n
+ return n
+end})
+
+-- Dump global labels.
+local function dumpglobals(out, lvl)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("Global labels:\n")
+ for i=10,next_global-1 do
+ out:write(format(" %s\n", t[i]))
+ end
+ out:write("\n")
+end
+
+-- Write global label enum.
+local function writeglobals(out, prefix)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("enum {\n")
+ for i=10,next_global-1 do
+ out:write(" ", prefix, gsub(t[i], "@.*", ""), ",\n")
+ end
+ out:write(" ", prefix, "_MAX\n};\n")
+end
+
+-- Write global label names.
+local function writeglobalnames(out, name)
+ local t = {}
+ for name, n in pairs(map_global) do t[n] = name end
+ out:write("static const char *const ", name, "[] = {\n")
+ for i=10,next_global-1 do
+ out:write(" \"", t[i], "\",\n")
+ end
+ out:write(" (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Extern label name -> extern label number. With auto assignment on 1st use.
+local next_extern = -1
+local map_extern = setmetatable({}, { __index = function(t, name)
+ -- No restrictions on the name for now.
+ local n = next_extern
+ if n < -256 then werror("too many extern labels") end
+ next_extern = n - 1
+ t[name] = n
+ return n
+end})
+
+-- Dump extern labels.
+local function dumpexterns(out, lvl)
+ local t = {}
+ for name, n in pairs(map_extern) do t[-n] = name end
+ out:write("Extern labels:\n")
+ for i=1,-next_extern-1 do
+ out:write(format(" %s\n", t[i]))
+ end
+ out:write("\n")
+end
+
+-- Write extern label names.
+local function writeexternnames(out, name)
+ local t = {}
+ for name, n in pairs(map_extern) do t[-n] = name end
+ out:write("static const char *const ", name, "[] = {\n")
+ for i=1,-next_extern-1 do
+ out:write(" \"", t[i], "\",\n")
+ end
+ out:write(" (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Arch-specific maps.
+local map_archdef = {} -- Ext. register name -> int. name.
+local map_reg_rev = {} -- Int. register name -> ext. name.
+local map_reg_num = {} -- Int. register name -> register number.
+local map_reg_opsize = {} -- Int. register name -> operand size.
+local map_reg_valid_base = {} -- Int. register name -> valid base register?
+local map_reg_valid_index = {} -- Int. register name -> valid index register?
+local map_reg_needrex = {} -- Int. register name -> need rex vs. no rex.
+local reg_list = {} -- Canonical list of int. register names.
+
+local map_type = {} -- Type name -> { ctype, reg }
+local ctypenum = 0 -- Type number (for _PTx macros).
+
+local addrsize = x64 and "q" or "d" -- Size for address operands.
+
+-- Helper functions to fill register maps.
+local function mkrmap(sz, cl, names)
+ local cname = format("@%s", sz)
+ reg_list[#reg_list+1] = cname
+ map_archdef[cl] = cname
+ map_reg_rev[cname] = cl
+ map_reg_num[cname] = -1
+ map_reg_opsize[cname] = sz
+ if sz == addrsize or sz == "d" then
+ map_reg_valid_base[cname] = true
+ map_reg_valid_index[cname] = true
+ end
+ if names then
+ for n,name in ipairs(names) do
+ local iname = format("@%s%x", sz, n-1)
+ reg_list[#reg_list+1] = iname
+ map_archdef[name] = iname
+ map_reg_rev[iname] = name
+ map_reg_num[iname] = n-1
+ map_reg_opsize[iname] = sz
+ if sz == "b" and n > 4 then map_reg_needrex[iname] = false end
+ if sz == addrsize or sz == "d" then
+ map_reg_valid_base[iname] = true
+ map_reg_valid_index[iname] = true
+ end
+ end
+ end
+ for i=0,(x64 and sz ~= "f") and 15 or 7 do
+ local needrex = sz == "b" and i > 3
+ local iname = format("@%s%x%s", sz, i, needrex and "R" or "")
+ if needrex then map_reg_needrex[iname] = true end
+ local name
+ if sz == "o" then name = format("xmm%d", i)
+ elseif sz == "f" then name = format("st%d", i)
+ else name = format("r%d%s", i, sz == addrsize and "" or sz) end
+ map_archdef[name] = iname
+ if not map_reg_rev[iname] then
+ reg_list[#reg_list+1] = iname
+ map_reg_rev[iname] = name
+ map_reg_num[iname] = i
+ map_reg_opsize[iname] = sz
+ if sz == addrsize or sz == "d" then
+ map_reg_valid_base[iname] = true
+ map_reg_valid_index[iname] = true
+ end
+ end
+ end
+ reg_list[#reg_list+1] = ""
+end
+
+-- Integer registers (qword, dword, word and byte sized).
+if x64 then
+ mkrmap("q", "Rq", {"rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi"})
+end
+mkrmap("d", "Rd", {"eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi"})
+mkrmap("w", "Rw", {"ax", "cx", "dx", "bx", "sp", "bp", "si", "di"})
+mkrmap("b", "Rb", {"al", "cl", "dl", "bl", "ah", "ch", "dh", "bh"})
+map_reg_valid_index[map_archdef.esp] = false
+if x64 then map_reg_valid_index[map_archdef.rsp] = false end
+map_archdef["Ra"] = "@"..addrsize
+
+-- FP registers (internally tword sized, but use "f" as operand size).
+mkrmap("f", "Rf")
+
+-- SSE registers (oword sized, but qword and dword accessible).
+mkrmap("o", "xmm")
+
+-- Operand size prefixes to codes.
+local map_opsize = {
+ byte = "b", word = "w", dword = "d", qword = "q", oword = "o", tword = "t",
+ aword = addrsize,
+}
+
+-- Operand size code to number.
+local map_opsizenum = {
+ b = 1, w = 2, d = 4, q = 8, o = 16, t = 10,
+}
+
+-- Operand size code to name.
+local map_opsizename = {
+ b = "byte", w = "word", d = "dword", q = "qword", o = "oword", t = "tword",
+ f = "fpword",
+}
+
+-- Valid index register scale factors.
+local map_xsc = {
+ ["1"] = 0, ["2"] = 1, ["4"] = 2, ["8"] = 3,
+}
+
+-- Condition codes.
+local map_cc = {
+ o = 0, no = 1, b = 2, nb = 3, e = 4, ne = 5, be = 6, nbe = 7,
+ s = 8, ns = 9, p = 10, np = 11, l = 12, nl = 13, le = 14, nle = 15,
+ c = 2, nae = 2, nc = 3, ae = 3, z = 4, nz = 5, na = 6, a = 7,
+ pe = 10, po = 11, nge = 12, ge = 13, ng = 14, g = 15,
+}
+
+
+-- Reverse defines for registers.
+function _M.revdef(s)
+ return gsub(s, "@%w+", map_reg_rev)
+end
+
+-- Dump register names and numbers
+local function dumpregs(out)
+ out:write("Register names, sizes and internal numbers:\n")
+ for _,reg in ipairs(reg_list) do
+ if reg == "" then
+ out:write("\n")
+ else
+ local name = map_reg_rev[reg]
+ local num = map_reg_num[reg]
+ local opsize = map_opsizename[map_reg_opsize[reg]]
+ out:write(format(" %-5s %-8s %s\n", name, opsize,
+ num < 0 and "(variable)" or num))
+ end
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Put action for label arg (IMM_LG, IMM_PC, REL_LG, REL_PC).
+local function wputlabel(aprefix, imm, num)
+ if type(imm) == "number" then
+ if imm < 0 then
+ waction("EXTERN")
+ wputxb(aprefix == "IMM_" and 0 or 1)
+ imm = -imm-1
+ else
+ waction(aprefix.."LG", nil, num);
+ end
+ wputxb(imm)
+ else
+ waction(aprefix.."PC", imm, num)
+ end
+end
+
+-- Put signed byte or arg.
+local function wputsbarg(n)
+ if type(n) == "number" then
+ if n < -128 or n > 127 then
+ werror("signed immediate byte out of range")
+ end
+ if n < 0 then n = n + 256 end
+ wputb(n)
+ else waction("IMM_S", n) end
+end
+
+-- Put unsigned byte or arg.
+local function wputbarg(n)
+ if type(n) == "number" then
+ if n < 0 or n > 255 then
+ werror("unsigned immediate byte out of range")
+ end
+ wputb(n)
+ else waction("IMM_B", n) end
+end
+
+-- Put unsigned word or arg.
+local function wputwarg(n)
+ if type(n) == "number" then
+ if n < 0 or n > 65535 then
+ werror("unsigned immediate word out of range")
+ end
+ local r = n%256; n = (n-r)/256; wputb(r); wputb(n);
+ else waction("IMM_W", n) end
+end
+
+-- Put signed or unsigned dword or arg.
+local function wputdarg(n)
+ local tn = type(n)
+ if tn == "number" then
+ if n < 0 then n = n + 4294967296 end
+ local r = n%256; n = (n-r)/256; wputb(r);
+ r = n%256; n = (n-r)/256; wputb(r);
+ r = n%256; n = (n-r)/256; wputb(r); wputb(n);
+ elseif tn == "table" then
+ wputlabel("IMM_", n[1], 1)
+ else
+ waction("IMM_D", n)
+ end
+end
+
+-- Put operand-size dependent number or arg (defaults to dword).
+local function wputszarg(sz, n)
+ if not sz or sz == "d" or sz == "q" then wputdarg(n)
+ elseif sz == "w" then wputwarg(n)
+ elseif sz == "b" then wputbarg(n)
+ elseif sz == "s" then wputsbarg(n)
+ else werror("bad operand size") end
+end
+
+-- Put multi-byte opcode with operand-size dependent modifications.
+local function wputop(sz, op, rex)
+ local r
+ if rex ~= 0 and not x64 then werror("bad operand size") end
+ if sz == "w" then wputb(102) end
+ -- Needs >32 bit numbers, but only for crc32 eax, word [ebx]
+ if op >= 4294967296 then r = op%4294967296 wputb((op-r)/4294967296) op = r end
+ if op >= 16777216 then r = op % 16777216 wputb((op-r) / 16777216) op = r end
+ if op >= 65536 then
+ if rex ~= 0 then
+ local opc3 = op - op % 256
+ if opc3 == 0x0f3a00 or opc3 == 0x0f3800 then
+ wputb(64 + rex % 16); rex = 0
+ end
+ end
+ r = op % 65536 wputb((op-r) / 65536) op = r
+ end
+ if op >= 256 then
+ r = op % 256
+ local b = (op-r) / 256
+ if b == 15 and rex ~= 0 then wputb(64 + rex % 16); rex = 0 end
+ wputb(b)
+ op = r
+ end
+ if rex ~= 0 then wputb(64 + rex % 16) end
+ if sz == "b" then op = op - 1 end
+ wputb(op)
+end
+
+-- Put ModRM or SIB formatted byte.
+local function wputmodrm(m, s, rm, vs, vrm)
+ assert(m < 4 and s < 16 and rm < 16, "bad modrm operands")
+ wputb(64*m + 8*(s%8) + (rm%8))
+end
+
+-- Put ModRM/SIB plus optional displacement.
+local function wputmrmsib(t, imark, s, vsreg)
+ local vreg, vxreg
+ local reg, xreg = t.reg, t.xreg
+ if reg and reg < 0 then reg = 0; vreg = t.vreg end
+ if xreg and xreg < 0 then xreg = 0; vxreg = t.vxreg end
+ if s < 0 then s = 0 end
+
+ -- Register mode.
+ if sub(t.mode, 1, 1) == "r" then
+ wputmodrm(3, s, reg)
+ if vsreg then waction("VREG", vsreg); wputxb(2) end
+ if vreg then waction("VREG", vreg); wputxb(0) end
+ return
+ end
+
+ local disp = t.disp
+ local tdisp = type(disp)
+ -- No base register?
+ if not reg then
+ local riprel = false
+ if xreg then
+ -- Indexed mode with index register only.
+ -- [xreg*xsc+disp] -> (0, s, esp) (xsc, xreg, ebp)
+ wputmodrm(0, s, 4)
+ if imark == "I" then waction("MARK") end
+ if vsreg then waction("VREG", vsreg); wputxb(2) end
+ wputmodrm(t.xsc, xreg, 5)
+ if vxreg then waction("VREG", vxreg); wputxb(3) end
+ else
+ -- Pure 32 bit displacement.
+ if x64 and tdisp ~= "table" then
+ wputmodrm(0, s, 4) -- [disp] -> (0, s, esp) (0, esp, ebp)
+ if imark == "I" then waction("MARK") end
+ wputmodrm(0, 4, 5)
+ else
+ riprel = x64
+ wputmodrm(0, s, 5) -- [disp|rip-label] -> (0, s, ebp)
+ if imark == "I" then waction("MARK") end
+ end
+ if vsreg then waction("VREG", vsreg); wputxb(2) end
+ end
+ if riprel then -- Emit rip-relative displacement.
+ if match("UWSiI", imark) then
+ werror("NYI: rip-relative displacement followed by immediate")
+ end
+ -- The previous byte in the action buffer cannot be 0xe9 or 0x80-0x8f.
+ wputlabel("REL_", disp[1], 2)
+ else
+ wputdarg(disp)
+ end
+ return
+ end
+
+ local m
+ if tdisp == "number" then -- Check displacement size at assembly time.
+ if disp == 0 and (reg%8) ~= 5 then -- [ebp] -> [ebp+0] (in SIB, too)
+ if not vreg then m = 0 end -- Force DISP to allow [Rd(5)] -> [ebp+0]
+ elseif disp >= -128 and disp <= 127 then m = 1
+ else m = 2 end
+ elseif tdisp == "table" then
+ m = 2
+ end
+
+ -- Index register present or esp as base register: need SIB encoding.
+ if xreg or (reg%8) == 4 then
+ wputmodrm(m or 2, s, 4) -- ModRM.
+ if m == nil or imark == "I" then waction("MARK") end
+ if vsreg then waction("VREG", vsreg); wputxb(2) end
+ wputmodrm(t.xsc or 0, xreg or 4, reg) -- SIB.
+ if vxreg then waction("VREG", vxreg); wputxb(3) end
+ if vreg then waction("VREG", vreg); wputxb(1) end
+ else
+ wputmodrm(m or 2, s, reg) -- ModRM.
+ if (imark == "I" and (m == 1 or m == 2)) or
+ (m == nil and (vsreg or vreg)) then waction("MARK") end
+ if vsreg then waction("VREG", vsreg); wputxb(2) end
+ if vreg then waction("VREG", vreg); wputxb(1) end
+ end
+
+ -- Put displacement.
+ if m == 1 then wputsbarg(disp)
+ elseif m == 2 then wputdarg(disp)
+ elseif m == nil then waction("DISP", disp) end
+end
+
+------------------------------------------------------------------------------
+
+-- Return human-readable operand mode string.
+local function opmodestr(op, args)
+ local m = {}
+ for i=1,#args do
+ local a = args[i]
+ m[#m+1] = sub(a.mode, 1, 1)..(a.opsize or "?")
+ end
+ return op.." "..concat(m, ",")
+end
+
+-- Convert number to valid integer or nil.
+local function toint(expr)
+ local n = tonumber(expr)
+ if n then
+ if n % 1 ~= 0 or n < -2147483648 or n > 4294967295 then
+ werror("bad integer number `"..expr.."'")
+ end
+ return n
+ end
+end
+
+-- Parse immediate expression.
+local function immexpr(expr)
+ -- &expr (pointer)
+ if sub(expr, 1, 1) == "&" then
+ return "iPJ", format("(ptrdiff_t)(%s)", sub(expr,2))
+ end
+
+ local prefix = sub(expr, 1, 2)
+ -- =>expr (pc label reference)
+ if prefix == "=>" then
+ return "iJ", sub(expr, 3)
+ end
+ -- ->name (global label reference)
+ if prefix == "->" then
+ return "iJ", map_global[sub(expr, 3)]
+ end
+
+ -- [<>][1-9] (local label reference)
+ local dir, lnum = match(expr, "^([<>])([1-9])$")
+ if dir then -- Fwd: 247-255, Bkwd: 1-9.
+ return "iJ", lnum + (dir == ">" and 246 or 0)
+ end
+
+ local extname = match(expr, "^extern%s+(%S+)$")
+ if extname then
+ return "iJ", map_extern[extname]
+ end
+
+ -- expr (interpreted as immediate)
+ return "iI", expr
+end
+
+-- Parse displacement expression: +-num, +-expr, +-opsize*num
+local function dispexpr(expr)
+ local disp = expr == "" and 0 or toint(expr)
+ if disp then return disp end
+ local c, dispt = match(expr, "^([+-])%s*(.+)$")
+ if c == "+" then
+ expr = dispt
+ elseif not c then
+ werror("bad displacement expression `"..expr.."'")
+ end
+ local opsize, tailops = match(dispt, "^(%w+)%s*%*%s*(.+)$")
+ local ops, imm = map_opsize[opsize], toint(tailops)
+ if ops and imm then
+ if c == "-" then imm = -imm end
+ return imm*map_opsizenum[ops]
+ end
+ local mode, iexpr = immexpr(dispt)
+ if mode == "iJ" then
+ if c == "-" then werror("cannot invert label reference") end
+ return { iexpr }
+ end
+ return expr -- Need to return original signed expression.
+end
+
+-- Parse register or type expression.
+local function rtexpr(expr)
+ if not expr then return end
+ local tname, ovreg = match(expr, "^([%w_]+):(@[%w_]+)$")
+ local tp = map_type[tname or expr]
+ if tp then
+ local reg = ovreg or tp.reg
+ local rnum = map_reg_num[reg]
+ if not rnum then
+ werror("type `"..(tname or expr).."' needs a register override")
+ end
+ if not map_reg_valid_base[reg] then
+ werror("bad base register override `"..(map_reg_rev[reg] or reg).."'")
+ end
+ return reg, rnum, tp
+ end
+ return expr, map_reg_num[expr]
+end
+
+-- Parse operand and return { mode, opsize, reg, xreg, xsc, disp, imm }.
+local function parseoperand(param)
+ local t = {}
+
+ local expr = param
+ local opsize, tailops = match(param, "^(%w+)%s*(.+)$")
+ if opsize then
+ t.opsize = map_opsize[opsize]
+ if t.opsize then expr = tailops end
+ end
+
+ local br = match(expr, "^%[%s*(.-)%s*%]$")
+ repeat
+ if br then
+ t.mode = "xm"
+
+ -- [disp]
+ t.disp = toint(br)
+ if t.disp then
+ t.mode = x64 and "xm" or "xmO"
+ break
+ end
+
+ -- [reg...]
+ local tp
+ local reg, tailr = match(br, "^([@%w_:]+)%s*(.*)$")
+ reg, t.reg, tp = rtexpr(reg)
+ if not t.reg then
+ -- [expr]
+ t.mode = x64 and "xm" or "xmO"
+ t.disp = dispexpr("+"..br)
+ break
+ end
+
+ if t.reg == -1 then
+ t.vreg, tailr = match(tailr, "^(%b())(.*)$")
+ if not t.vreg then werror("bad variable register expression") end
+ end
+
+ -- [xreg*xsc] or [xreg*xsc+-disp] or [xreg*xsc+-expr]
+ local xsc, tailsc = match(tailr, "^%*%s*([1248])%s*(.*)$")
+ if xsc then
+ if not map_reg_valid_index[reg] then
+ werror("bad index register `"..map_reg_rev[reg].."'")
+ end
+ t.xsc = map_xsc[xsc]
+ t.xreg = t.reg
+ t.vxreg = t.vreg
+ t.reg = nil
+ t.vreg = nil
+ t.disp = dispexpr(tailsc)
+ break
+ end
+ if not map_reg_valid_base[reg] then
+ werror("bad base register `"..map_reg_rev[reg].."'")
+ end
+
+ -- [reg] or [reg+-disp]
+ t.disp = toint(tailr) or (tailr == "" and 0)
+ if t.disp then break end
+
+ -- [reg+xreg...]
+ local xreg, tailx = match(tailr, "^+%s*([@%w_:]+)%s*(.*)$")
+ xreg, t.xreg, tp = rtexpr(xreg)
+ if not t.xreg then
+ -- [reg+-expr]
+ t.disp = dispexpr(tailr)
+ break
+ end
+ if not map_reg_valid_index[xreg] then
+ werror("bad index register `"..map_reg_rev[xreg].."'")
+ end
+
+ if t.xreg == -1 then
+ t.vxreg, tailx = match(tailx, "^(%b())(.*)$")
+ if not t.vxreg then werror("bad variable register expression") end
+ end
+
+ -- [reg+xreg*xsc...]
+ local xsc, tailsc = match(tailx, "^%*%s*([1248])%s*(.*)$")
+ if xsc then
+ t.xsc = map_xsc[xsc]
+ tailx = tailsc
+ end
+
+ -- [...] or [...+-disp] or [...+-expr]
+ t.disp = dispexpr(tailx)
+ else
+ -- imm or opsize*imm
+ local imm = toint(expr)
+ if not imm and sub(expr, 1, 1) == "*" and t.opsize then
+ imm = toint(sub(expr, 2))
+ if imm then
+ imm = imm * map_opsizenum[t.opsize]
+ t.opsize = nil
+ end
+ end
+ if imm then
+ if t.opsize then werror("bad operand size override") end
+ local m = "i"
+ if imm == 1 then m = m.."1" end
+ if imm >= 4294967168 and imm <= 4294967295 then imm = imm-4294967296 end
+ if imm >= -128 and imm <= 127 then m = m.."S" end
+ t.imm = imm
+ t.mode = m
+ break
+ end
+
+ local tp
+ local reg, tailr = match(expr, "^([@%w_:]+)%s*(.*)$")
+ reg, t.reg, tp = rtexpr(reg)
+ if t.reg then
+ if t.reg == -1 then
+ t.vreg, tailr = match(tailr, "^(%b())(.*)$")
+ if not t.vreg then werror("bad variable register expression") end
+ end
+ -- reg
+ if tailr == "" then
+ if t.opsize then werror("bad operand size override") end
+ t.opsize = map_reg_opsize[reg]
+ if t.opsize == "f" then
+ t.mode = t.reg == 0 and "fF" or "f"
+ else
+ if reg == "@w4" or (x64 and reg == "@d4") then
+ wwarn("bad idea, try again with `"..(x64 and "rsp'" or "esp'"))
+ end
+ t.mode = t.reg == 0 and "rmR" or (reg == "@b1" and "rmC" or "rm")
+ end
+ t.needrex = map_reg_needrex[reg]
+ break
+ end
+
+ -- type[idx], type[idx].field, type->field -> [reg+offset_expr]
+ if not tp then werror("bad operand `"..param.."'") end
+ t.mode = "xm"
+ t.disp = format(tp.ctypefmt, tailr)
+ else
+ t.mode, t.imm = immexpr(expr)
+ if sub(t.mode, -1) == "J" then
+ if t.opsize and t.opsize ~= addrsize then
+ werror("bad operand size override")
+ end
+ t.opsize = addrsize
+ end
+ end
+ end
+ until true
+ return t
+end
+
+------------------------------------------------------------------------------
+-- x86 Template String Description
+-- ===============================
+--
+-- Each template string is a list of [match:]pattern pairs,
+-- separated by "|". The first match wins. No match means a
+-- bad or unsupported combination of operand modes or sizes.
+--
+-- The match part and the ":" is omitted if the operation has
+-- no operands. Otherwise the first N characters are matched
+-- against the mode strings of each of the N operands.
+--
+-- The mode string for each operand type is (see parseoperand()):
+-- Integer register: "rm", +"R" for eax, ax, al, +"C" for cl
+-- FP register: "f", +"F" for st0
+-- Index operand: "xm", +"O" for [disp] (pure offset)
+-- Immediate: "i", +"S" for signed 8 bit, +"1" for 1,
+-- +"I" for arg, +"P" for pointer
+-- Any: +"J" for valid jump targets
+--
+-- So a match character "m" (mixed) matches both an integer register
+-- and an index operand (to be encoded with the ModRM/SIB scheme).
+-- But "r" matches only a register and "x" only an index operand
+-- (e.g. for FP memory access operations).
+--
+-- The operand size match string starts right after the mode match
+-- characters and ends before the ":". "dwb" or "qdwb" is assumed, if empty.
+-- The effective data size of the operation is matched against this list.
+--
+-- If only the regular "b", "w", "d", "q", "t" operand sizes are
+-- present, then all operands must be the same size. Unspecified sizes
+-- are ignored, but at least one operand must have a size or the pattern
+-- won't match (use the "byte", "word", "dword", "qword", "tword"
+-- operand size overrides. E.g.: mov dword [eax], 1).
+--
+-- If the list has a "1" or "2" prefix, the operand size is taken
+-- from the respective operand and any other operand sizes are ignored.
+-- If the list contains only ".", all operand sizes are ignored.
+-- If the list has a "/" prefix, the concatenated (mixed) operand sizes
+-- are compared to the match.
+--
+-- E.g. "rrdw" matches for either two dword registers or two word
+-- registers. "Fx2dq" matches an st0 operand plus an index operand
+-- pointing to a dword (float) or qword (double).
+--
+-- Every character after the ":" is part of the pattern string:
+-- Hex chars are accumulated to form the opcode (left to right).
+-- "n" disables the standard opcode mods
+-- (otherwise: -1 for "b", o16 prefix for "w", rex.w for "q")
+-- "X" Force REX.W.
+-- "r"/"R" adds the reg. number from the 1st/2nd operand to the opcode.
+-- "m"/"M" generates ModRM/SIB from the 1st/2nd operand.
+-- The spare 3 bits are either filled with the last hex digit or
+-- the result from a previous "r"/"R". The opcode is restored.
+--
+-- All of the following characters force a flush of the opcode:
+-- "o"/"O" stores a pure 32 bit disp (offset) from the 1st/2nd operand.
+-- "S" stores a signed 8 bit immediate from the last operand.
+-- "U" stores an unsigned 8 bit immediate from the last operand.
+-- "W" stores an unsigned 16 bit immediate from the last operand.
+-- "i" stores an operand sized immediate from the last operand.
+-- "I" dito, but generates an action code to optionally modify
+-- the opcode (+2) for a signed 8 bit immediate.
+-- "J" generates one of the REL action codes from the last operand.
+--
+------------------------------------------------------------------------------
+
+-- Template strings for x86 instructions. Ordered by first opcode byte.
+-- Unimplemented opcodes (deliberate omissions) are marked with *.
+local map_op = {
+ -- 00-05: add...
+ -- 06: *push es
+ -- 07: *pop es
+ -- 08-0D: or...
+ -- 0E: *push cs
+ -- 0F: two byte opcode prefix
+ -- 10-15: adc...
+ -- 16: *push ss
+ -- 17: *pop ss
+ -- 18-1D: sbb...
+ -- 1E: *push ds
+ -- 1F: *pop ds
+ -- 20-25: and...
+ es_0 = "26",
+ -- 27: *daa
+ -- 28-2D: sub...
+ cs_0 = "2E",
+ -- 2F: *das
+ -- 30-35: xor...
+ ss_0 = "36",
+ -- 37: *aaa
+ -- 38-3D: cmp...
+ ds_0 = "3E",
+ -- 3F: *aas
+ inc_1 = x64 and "m:FF0m" or "rdw:40r|m:FF0m",
+ dec_1 = x64 and "m:FF1m" or "rdw:48r|m:FF1m",
+ push_1 = (x64 and "rq:n50r|rw:50r|mq:nFF6m|mw:FF6m" or
+ "rdw:50r|mdw:FF6m").."|S.:6AS|ib:n6Ai|i.:68i",
+ pop_1 = x64 and "rq:n58r|rw:58r|mq:n8F0m|mw:8F0m" or "rdw:58r|mdw:8F0m",
+ -- 60: *pusha, *pushad, *pushaw
+ -- 61: *popa, *popad, *popaw
+ -- 62: *bound rdw,x
+ -- 63: x86: *arpl mw,rw
+ movsxd_2 = x64 and "rm/qd:63rM",
+ fs_0 = "64",
+ gs_0 = "65",
+ o16_0 = "66",
+ a16_0 = not x64 and "67" or nil,
+ a32_0 = x64 and "67",
+ -- 68: push idw
+ -- 69: imul rdw,mdw,idw
+ -- 6A: push ib
+ -- 6B: imul rdw,mdw,S
+ -- 6C: *insb
+ -- 6D: *insd, *insw
+ -- 6E: *outsb
+ -- 6F: *outsd, *outsw
+ -- 70-7F: jcc lb
+ -- 80: add... mb,i
+ -- 81: add... mdw,i
+ -- 82: *undefined
+ -- 83: add... mdw,S
+ test_2 = "mr:85Rm|rm:85rM|Ri:A9ri|mi:F70mi",
+ -- 86: xchg rb,mb
+ -- 87: xchg rdw,mdw
+ -- 88: mov mb,r
+ -- 89: mov mdw,r
+ -- 8A: mov r,mb
+ -- 8B: mov r,mdw
+ -- 8C: *mov mdw,seg
+ lea_2 = "rx1dq:8DrM",
+ -- 8E: *mov seg,mdw
+ -- 8F: pop mdw
+ nop_0 = "90",
+ xchg_2 = "Rrqdw:90R|rRqdw:90r|rm:87rM|mr:87Rm",
+ cbw_0 = "6698",
+ cwde_0 = "98",
+ cdqe_0 = "4898",
+ cwd_0 = "6699",
+ cdq_0 = "99",
+ cqo_0 = "4899",
+ -- 9A: *call iw:idw
+ wait_0 = "9B",
+ fwait_0 = "9B",
+ pushf_0 = "9C",
+ pushfd_0 = not x64 and "9C",
+ pushfq_0 = x64 and "9C",
+ popf_0 = "9D",
+ popfd_0 = not x64 and "9D",
+ popfq_0 = x64 and "9D",
+ sahf_0 = "9E",
+ lahf_0 = "9F",
+ mov_2 = "OR:A3o|RO:A1O|mr:89Rm|rm:8BrM|rib:nB0ri|ridw:B8ri|mi:C70mi",
+ movsb_0 = "A4",
+ movsw_0 = "66A5",
+ movsd_0 = "A5",
+ cmpsb_0 = "A6",
+ cmpsw_0 = "66A7",
+ cmpsd_0 = "A7",
+ -- A8: test Rb,i
+ -- A9: test Rdw,i
+ stosb_0 = "AA",
+ stosw_0 = "66AB",
+ stosd_0 = "AB",
+ lodsb_0 = "AC",
+ lodsw_0 = "66AD",
+ lodsd_0 = "AD",
+ scasb_0 = "AE",
+ scasw_0 = "66AF",
+ scasd_0 = "AF",
+ -- B0-B7: mov rb,i
+ -- B8-BF: mov rdw,i
+ -- C0: rol... mb,i
+ -- C1: rol... mdw,i
+ ret_1 = "i.:nC2W",
+ ret_0 = "C3",
+ -- C4: *les rdw,mq
+ -- C5: *lds rdw,mq
+ -- C6: mov mb,i
+ -- C7: mov mdw,i
+ -- C8: *enter iw,ib
+ leave_0 = "C9",
+ -- CA: *retf iw
+ -- CB: *retf
+ int3_0 = "CC",
+ int_1 = "i.:nCDU",
+ into_0 = "CE",
+ -- CF: *iret
+ -- D0: rol... mb,1
+ -- D1: rol... mdw,1
+ -- D2: rol... mb,cl
+ -- D3: rol... mb,cl
+ -- D4: *aam ib
+ -- D5: *aad ib
+ -- D6: *salc
+ -- D7: *xlat
+ -- D8-DF: floating point ops
+ -- E0: *loopne
+ -- E1: *loope
+ -- E2: *loop
+ -- E3: *jcxz, *jecxz
+ -- E4: *in Rb,ib
+ -- E5: *in Rdw,ib
+ -- E6: *out ib,Rb
+ -- E7: *out ib,Rdw
+ call_1 = x64 and "mq:nFF2m|J.:E8nJ" or "md:FF2m|J.:E8J",
+ jmp_1 = x64 and "mq:nFF4m|J.:E9nJ" or "md:FF4m|J.:E9J", -- short: EB
+ -- EA: *jmp iw:idw
+ -- EB: jmp ib
+ -- EC: *in Rb,dx
+ -- ED: *in Rdw,dx
+ -- EE: *out dx,Rb
+ -- EF: *out dx,Rdw
+ -- F0: *lock
+ int1_0 = "F1",
+ repne_0 = "F2",
+ repnz_0 = "F2",
+ rep_0 = "F3",
+ repe_0 = "F3",
+ repz_0 = "F3",
+ -- F4: *hlt
+ cmc_0 = "F5",
+ -- F6: test... mb,i; div... mb
+ -- F7: test... mdw,i; div... mdw
+ clc_0 = "F8",
+ stc_0 = "F9",
+ -- FA: *cli
+ cld_0 = "FC",
+ std_0 = "FD",
+ -- FE: inc... mb
+ -- FF: inc... mdw
+
+ -- misc ops
+ not_1 = "m:F72m",
+ neg_1 = "m:F73m",
+ mul_1 = "m:F74m",
+ imul_1 = "m:F75m",
+ div_1 = "m:F76m",
+ idiv_1 = "m:F77m",
+
+ imul_2 = "rmqdw:0FAFrM|rIqdw:69rmI|rSqdw:6BrmS|riqdw:69rmi",
+ imul_3 = "rmIqdw:69rMI|rmSqdw:6BrMS|rmiqdw:69rMi",
+
+ movzx_2 = "rm/db:0FB6rM|rm/qb:|rm/wb:0FB6rM|rm/dw:0FB7rM|rm/qw:",
+ movsx_2 = "rm/db:0FBErM|rm/qb:|rm/wb:0FBErM|rm/dw:0FBFrM|rm/qw:",
+
+ bswap_1 = "rqd:0FC8r",
+ bsf_2 = "rmqdw:0FBCrM",
+ bsr_2 = "rmqdw:0FBDrM",
+ bt_2 = "mrqdw:0FA3Rm|miqdw:0FBA4mU",
+ btc_2 = "mrqdw:0FBBRm|miqdw:0FBA7mU",
+ btr_2 = "mrqdw:0FB3Rm|miqdw:0FBA6mU",
+ bts_2 = "mrqdw:0FABRm|miqdw:0FBA5mU",
+
+ rdtsc_0 = "0F31", -- P1+
+ cpuid_0 = "0FA2", -- P1+
+
+ -- floating point ops
+ fst_1 = "ff:DDD0r|xd:D92m|xq:nDD2m",
+ fstp_1 = "ff:DDD8r|xd:D93m|xq:nDD3m|xt:DB7m",
+ fld_1 = "ff:D9C0r|xd:D90m|xq:nDD0m|xt:DB5m",
+
+ fpop_0 = "DDD8", -- Alias for fstp st0.
+
+ fist_1 = "xw:nDF2m|xd:DB2m",
+ fistp_1 = "xw:nDF3m|xd:DB3m|xq:nDF7m",
+ fild_1 = "xw:nDF0m|xd:DB0m|xq:nDF5m",
+
+ fxch_0 = "D9C9",
+ fxch_1 = "ff:D9C8r",
+ fxch_2 = "fFf:D9C8r|Fff:D9C8R",
+
+ fucom_1 = "ff:DDE0r",
+ fucom_2 = "Fff:DDE0R",
+ fucomp_1 = "ff:DDE8r",
+ fucomp_2 = "Fff:DDE8R",
+ fucomi_1 = "ff:DBE8r", -- P6+
+ fucomi_2 = "Fff:DBE8R", -- P6+
+ fucomip_1 = "ff:DFE8r", -- P6+
+ fucomip_2 = "Fff:DFE8R", -- P6+
+ fcomi_1 = "ff:DBF0r", -- P6+
+ fcomi_2 = "Fff:DBF0R", -- P6+
+ fcomip_1 = "ff:DFF0r", -- P6+
+ fcomip_2 = "Fff:DFF0R", -- P6+
+ fucompp_0 = "DAE9",
+ fcompp_0 = "DED9",
+
+ fldcw_1 = "xw:nD95m",
+ fstcw_1 = "xw:n9BD97m",
+ fnstcw_1 = "xw:nD97m",
+ fstsw_1 = "Rw:n9BDFE0|xw:n9BDD7m",
+ fnstsw_1 = "Rw:nDFE0|xw:nDD7m",
+ fclex_0 = "9BDBE2",
+ fnclex_0 = "DBE2",
+
+ fnop_0 = "D9D0",
+ -- D9D1-D9DF: unassigned
+
+ fchs_0 = "D9E0",
+ fabs_0 = "D9E1",
+ -- D9E2: unassigned
+ -- D9E3: unassigned
+ ftst_0 = "D9E4",
+ fxam_0 = "D9E5",
+ -- D9E6: unassigned
+ -- D9E7: unassigned
+ fld1_0 = "D9E8",
+ fldl2t_0 = "D9E9",
+ fldl2e_0 = "D9EA",
+ fldpi_0 = "D9EB",
+ fldlg2_0 = "D9EC",
+ fldln2_0 = "D9ED",
+ fldz_0 = "D9EE",
+ -- D9EF: unassigned
+
+ f2xm1_0 = "D9F0",
+ fyl2x_0 = "D9F1",
+ fptan_0 = "D9F2",
+ fpatan_0 = "D9F3",
+ fxtract_0 = "D9F4",
+ fprem1_0 = "D9F5",
+ fdecstp_0 = "D9F6",
+ fincstp_0 = "D9F7",
+ fprem_0 = "D9F8",
+ fyl2xp1_0 = "D9F9",
+ fsqrt_0 = "D9FA",
+ fsincos_0 = "D9FB",
+ frndint_0 = "D9FC",
+ fscale_0 = "D9FD",
+ fsin_0 = "D9FE",
+ fcos_0 = "D9FF",
+
+ -- SSE, SSE2
+ andnpd_2 = "rmo:660F55rM",
+ andnps_2 = "rmo:0F55rM",
+ andpd_2 = "rmo:660F54rM",
+ andps_2 = "rmo:0F54rM",
+ clflush_1 = "x.:0FAE7m",
+ cmppd_3 = "rmio:660FC2rMU",
+ cmpps_3 = "rmio:0FC2rMU",
+ cmpsd_3 = "rrio:F20FC2rMU|rxi/oq:",
+ cmpss_3 = "rrio:F30FC2rMU|rxi/od:",
+ comisd_2 = "rro:660F2FrM|rx/oq:",
+ comiss_2 = "rro:0F2FrM|rx/od:",
+ cvtdq2pd_2 = "rro:F30FE6rM|rx/oq:",
+ cvtdq2ps_2 = "rmo:0F5BrM",
+ cvtpd2dq_2 = "rmo:F20FE6rM",
+ cvtpd2ps_2 = "rmo:660F5ArM",
+ cvtpi2pd_2 = "rx/oq:660F2ArM",
+ cvtpi2ps_2 = "rx/oq:0F2ArM",
+ cvtps2dq_2 = "rmo:660F5BrM",
+ cvtps2pd_2 = "rro:0F5ArM|rx/oq:",
+ cvtsd2si_2 = "rr/do:F20F2DrM|rr/qo:|rx/dq:|rxq:",
+ cvtsd2ss_2 = "rro:F20F5ArM|rx/oq:",
+ cvtsi2sd_2 = "rm/od:F20F2ArM|rm/oq:F20F2ArXM",
+ cvtsi2ss_2 = "rm/od:F30F2ArM|rm/oq:F30F2ArXM",
+ cvtss2sd_2 = "rro:F30F5ArM|rx/od:",
+ cvtss2si_2 = "rr/do:F20F2CrM|rr/qo:|rxd:|rx/qd:",
+ cvttpd2dq_2 = "rmo:660FE6rM",
+ cvttps2dq_2 = "rmo:F30F5BrM",
+ cvttsd2si_2 = "rr/do:F20F2CrM|rr/qo:|rx/dq:|rxq:",
+ cvttss2si_2 = "rr/do:F30F2CrM|rr/qo:|rxd:|rx/qd:",
+ ldmxcsr_1 = "xd:0FAE2m",
+ lfence_0 = "0FAEE8",
+ maskmovdqu_2 = "rro:660FF7rM",
+ mfence_0 = "0FAEF0",
+ movapd_2 = "rmo:660F28rM|mro:660F29Rm",
+ movaps_2 = "rmo:0F28rM|mro:0F29Rm",
+ movd_2 = "rm/od:660F6ErM|rm/oq:660F6ErXM|mr/do:660F7ERm|mr/qo:",
+ movdqa_2 = "rmo:660F6FrM|mro:660F7FRm",
+ movdqu_2 = "rmo:F30F6FrM|mro:F30F7FRm",
+ movhlps_2 = "rro:0F12rM",
+ movhpd_2 = "rx/oq:660F16rM|xr/qo:n660F17Rm",
+ movhps_2 = "rx/oq:0F16rM|xr/qo:n0F17Rm",
+ movlhps_2 = "rro:0F16rM",
+ movlpd_2 = "rx/oq:660F12rM|xr/qo:n660F13Rm",
+ movlps_2 = "rx/oq:0F12rM|xr/qo:n0F13Rm",
+ movmskpd_2 = "rr/do:660F50rM",
+ movmskps_2 = "rr/do:0F50rM",
+ movntdq_2 = "xro:660FE7Rm",
+ movnti_2 = "xrqd:0FC3Rm",
+ movntpd_2 = "xro:660F2BRm",
+ movntps_2 = "xro:0F2BRm",
+ movq_2 = "rro:F30F7ErM|rx/oq:|xr/qo:n660FD6Rm",
+ movsd_2 = "rro:F20F10rM|rx/oq:|xr/qo:nF20F11Rm",
+ movss_2 = "rro:F30F10rM|rx/od:|xr/do:F30F11Rm",
+ movupd_2 = "rmo:660F10rM|mro:660F11Rm",
+ movups_2 = "rmo:0F10rM|mro:0F11Rm",
+ orpd_2 = "rmo:660F56rM",
+ orps_2 = "rmo:0F56rM",
+ packssdw_2 = "rmo:660F6BrM",
+ packsswb_2 = "rmo:660F63rM",
+ packuswb_2 = "rmo:660F67rM",
+ paddb_2 = "rmo:660FFCrM",
+ paddd_2 = "rmo:660FFErM",
+ paddq_2 = "rmo:660FD4rM",
+ paddsb_2 = "rmo:660FECrM",
+ paddsw_2 = "rmo:660FEDrM",
+ paddusb_2 = "rmo:660FDCrM",
+ paddusw_2 = "rmo:660FDDrM",
+ paddw_2 = "rmo:660FFDrM",
+ pand_2 = "rmo:660FDBrM",
+ pandn_2 = "rmo:660FDFrM",
+ pause_0 = "F390",
+ pavgb_2 = "rmo:660FE0rM",
+ pavgw_2 = "rmo:660FE3rM",
+ pcmpeqb_2 = "rmo:660F74rM",
+ pcmpeqd_2 = "rmo:660F76rM",
+ pcmpeqw_2 = "rmo:660F75rM",
+ pcmpgtb_2 = "rmo:660F64rM",
+ pcmpgtd_2 = "rmo:660F66rM",
+ pcmpgtw_2 = "rmo:660F65rM",
+ pextrw_3 = "rri/do:660FC5rMU|xri/wo:660F3A15nrMU", -- Mem op: SSE4.1 only.
+ pinsrw_3 = "rri/od:660FC4rMU|rxi/ow:",
+ pmaddwd_2 = "rmo:660FF5rM",
+ pmaxsw_2 = "rmo:660FEErM",
+ pmaxub_2 = "rmo:660FDErM",
+ pminsw_2 = "rmo:660FEArM",
+ pminub_2 = "rmo:660FDArM",
+ pmovmskb_2 = "rr/do:660FD7rM",
+ pmulhuw_2 = "rmo:660FE4rM",
+ pmulhw_2 = "rmo:660FE5rM",
+ pmullw_2 = "rmo:660FD5rM",
+ pmuludq_2 = "rmo:660FF4rM",
+ por_2 = "rmo:660FEBrM",
+ prefetchnta_1 = "xb:n0F180m",
+ prefetcht0_1 = "xb:n0F181m",
+ prefetcht1_1 = "xb:n0F182m",
+ prefetcht2_1 = "xb:n0F183m",
+ psadbw_2 = "rmo:660FF6rM",
+ pshufd_3 = "rmio:660F70rMU",
+ pshufhw_3 = "rmio:F30F70rMU",
+ pshuflw_3 = "rmio:F20F70rMU",
+ pslld_2 = "rmo:660FF2rM|rio:660F726mU",
+ pslldq_2 = "rio:660F737mU",
+ psllq_2 = "rmo:660FF3rM|rio:660F736mU",
+ psllw_2 = "rmo:660FF1rM|rio:660F716mU",
+ psrad_2 = "rmo:660FE2rM|rio:660F724mU",
+ psraw_2 = "rmo:660FE1rM|rio:660F714mU",
+ psrld_2 = "rmo:660FD2rM|rio:660F722mU",
+ psrldq_2 = "rio:660F733mU",
+ psrlq_2 = "rmo:660FD3rM|rio:660F732mU",
+ psrlw_2 = "rmo:660FD1rM|rio:660F712mU",
+ psubb_2 = "rmo:660FF8rM",
+ psubd_2 = "rmo:660FFArM",
+ psubq_2 = "rmo:660FFBrM",
+ psubsb_2 = "rmo:660FE8rM",
+ psubsw_2 = "rmo:660FE9rM",
+ psubusb_2 = "rmo:660FD8rM",
+ psubusw_2 = "rmo:660FD9rM",
+ psubw_2 = "rmo:660FF9rM",
+ punpckhbw_2 = "rmo:660F68rM",
+ punpckhdq_2 = "rmo:660F6ArM",
+ punpckhqdq_2 = "rmo:660F6DrM",
+ punpckhwd_2 = "rmo:660F69rM",
+ punpcklbw_2 = "rmo:660F60rM",
+ punpckldq_2 = "rmo:660F62rM",
+ punpcklqdq_2 = "rmo:660F6CrM",
+ punpcklwd_2 = "rmo:660F61rM",
+ pxor_2 = "rmo:660FEFrM",
+ rcpps_2 = "rmo:0F53rM",
+ rcpss_2 = "rro:F30F53rM|rx/od:",
+ rsqrtps_2 = "rmo:0F52rM",
+ rsqrtss_2 = "rmo:F30F52rM",
+ sfence_0 = "0FAEF8",
+ shufpd_3 = "rmio:660FC6rMU",
+ shufps_3 = "rmio:0FC6rMU",
+ stmxcsr_1 = "xd:0FAE3m",
+ ucomisd_2 = "rro:660F2ErM|rx/oq:",
+ ucomiss_2 = "rro:0F2ErM|rx/od:",
+ unpckhpd_2 = "rmo:660F15rM",
+ unpckhps_2 = "rmo:0F15rM",
+ unpcklpd_2 = "rmo:660F14rM",
+ unpcklps_2 = "rmo:0F14rM",
+ xorpd_2 = "rmo:660F57rM",
+ xorps_2 = "rmo:0F57rM",
+
+ -- SSE3 ops
+ fisttp_1 = "xw:nDF1m|xd:DB1m|xq:nDD1m",
+ addsubpd_2 = "rmo:660FD0rM",
+ addsubps_2 = "rmo:F20FD0rM",
+ haddpd_2 = "rmo:660F7CrM",
+ haddps_2 = "rmo:F20F7CrM",
+ hsubpd_2 = "rmo:660F7DrM",
+ hsubps_2 = "rmo:F20F7DrM",
+ lddqu_2 = "rxo:F20FF0rM",
+ movddup_2 = "rmo:F20F12rM",
+ movshdup_2 = "rmo:F30F16rM",
+ movsldup_2 = "rmo:F30F12rM",
+
+ -- SSSE3 ops
+ pabsb_2 = "rmo:660F381CrM",
+ pabsd_2 = "rmo:660F381ErM",
+ pabsw_2 = "rmo:660F381DrM",
+ palignr_3 = "rmio:660F3A0FrMU",
+ phaddd_2 = "rmo:660F3802rM",
+ phaddsw_2 = "rmo:660F3803rM",
+ phaddw_2 = "rmo:660F3801rM",
+ phsubd_2 = "rmo:660F3806rM",
+ phsubsw_2 = "rmo:660F3807rM",
+ phsubw_2 = "rmo:660F3805rM",
+ pmaddubsw_2 = "rmo:660F3804rM",
+ pmulhrsw_2 = "rmo:660F380BrM",
+ pshufb_2 = "rmo:660F3800rM",
+ psignb_2 = "rmo:660F3808rM",
+ psignd_2 = "rmo:660F380ArM",
+ psignw_2 = "rmo:660F3809rM",
+
+ -- SSE4.1 ops
+ blendpd_3 = "rmio:660F3A0DrMU",
+ blendps_3 = "rmio:660F3A0CrMU",
+ blendvpd_3 = "rmRo:660F3815rM",
+ blendvps_3 = "rmRo:660F3814rM",
+ dppd_3 = "rmio:660F3A41rMU",
+ dpps_3 = "rmio:660F3A40rMU",
+ extractps_3 = "mri/do:660F3A17RmU|rri/qo:660F3A17RXmU",
+ insertps_3 = "rrio:660F3A41rMU|rxi/od:",
+ movntdqa_2 = "rmo:660F382ArM",
+ mpsadbw_3 = "rmio:660F3A42rMU",
+ packusdw_2 = "rmo:660F382BrM",
+ pblendvb_3 = "rmRo:660F3810rM",
+ pblendw_3 = "rmio:660F3A0ErMU",
+ pcmpeqq_2 = "rmo:660F3829rM",
+ pextrb_3 = "rri/do:660F3A14nRmU|rri/qo:|xri/bo:",
+ pextrd_3 = "mri/do:660F3A16RmU",
+ pextrq_3 = "mri/qo:660F3A16RmU",
+ -- pextrw is SSE2, mem operand is SSE4.1 only
+ phminposuw_2 = "rmo:660F3841rM",
+ pinsrb_3 = "rri/od:660F3A20nrMU|rxi/ob:",
+ pinsrd_3 = "rmi/od:660F3A22rMU",
+ pinsrq_3 = "rmi/oq:660F3A22rXMU",
+ pmaxsb_2 = "rmo:660F383CrM",
+ pmaxsd_2 = "rmo:660F383DrM",
+ pmaxud_2 = "rmo:660F383FrM",
+ pmaxuw_2 = "rmo:660F383ErM",
+ pminsb_2 = "rmo:660F3838rM",
+ pminsd_2 = "rmo:660F3839rM",
+ pminud_2 = "rmo:660F383BrM",
+ pminuw_2 = "rmo:660F383ArM",
+ pmovsxbd_2 = "rro:660F3821rM|rx/od:",
+ pmovsxbq_2 = "rro:660F3822rM|rx/ow:",
+ pmovsxbw_2 = "rro:660F3820rM|rx/oq:",
+ pmovsxdq_2 = "rro:660F3825rM|rx/oq:",
+ pmovsxwd_2 = "rro:660F3823rM|rx/oq:",
+ pmovsxwq_2 = "rro:660F3824rM|rx/od:",
+ pmovzxbd_2 = "rro:660F3831rM|rx/od:",
+ pmovzxbq_2 = "rro:660F3832rM|rx/ow:",
+ pmovzxbw_2 = "rro:660F3830rM|rx/oq:",
+ pmovzxdq_2 = "rro:660F3835rM|rx/oq:",
+ pmovzxwd_2 = "rro:660F3833rM|rx/oq:",
+ pmovzxwq_2 = "rro:660F3834rM|rx/od:",
+ pmuldq_2 = "rmo:660F3828rM",
+ pmulld_2 = "rmo:660F3840rM",
+ ptest_2 = "rmo:660F3817rM",
+ roundpd_3 = "rmio:660F3A09rMU",
+ roundps_3 = "rmio:660F3A08rMU",
+ roundsd_3 = "rrio:660F3A0BrMU|rxi/oq:",
+ roundss_3 = "rrio:660F3A0ArMU|rxi/od:",
+
+ -- SSE4.2 ops
+ crc32_2 = "rmqd:F20F38F1rM|rm/dw:66F20F38F1rM|rm/db:F20F38F0rM|rm/qb:",
+ pcmpestri_3 = "rmio:660F3A61rMU",
+ pcmpestrm_3 = "rmio:660F3A60rMU",
+ pcmpgtq_2 = "rmo:660F3837rM",
+ pcmpistri_3 = "rmio:660F3A63rMU",
+ pcmpistrm_3 = "rmio:660F3A62rMU",
+ popcnt_2 = "rmqdw:F30FB8rM",
+
+ -- SSE4a
+ extrq_2 = "rro:660F79rM",
+ extrq_3 = "riio:660F780mUU",
+ insertq_2 = "rro:F20F79rM",
+ insertq_4 = "rriio:F20F78rMUU",
+ lzcnt_2 = "rmqdw:F30FBDrM",
+ movntsd_2 = "xr/qo:nF20F2BRm",
+ movntss_2 = "xr/do:F30F2BRm",
+ -- popcnt is also in SSE4.2
+}
+
+------------------------------------------------------------------------------
+
+-- Arithmetic ops.
+for name,n in pairs{ add = 0, ["or"] = 1, adc = 2, sbb = 3,
+ ["and"] = 4, sub = 5, xor = 6, cmp = 7 } do
+ local n8 = n * 8
+ map_op[name.."_2"] = format(
+ "mr:%02XRm|rm:%02XrM|mI1qdw:81%XmI|mS1qdw:83%XmS|Ri1qdwb:%02Xri|mi1qdwb:81%Xmi",
+ 1+n8, 3+n8, n, n, 5+n8, n)
+end
+
+-- Shift ops.
+for name,n in pairs{ rol = 0, ror = 1, rcl = 2, rcr = 3,
+ shl = 4, shr = 5, sar = 7, sal = 4 } do
+ map_op[name.."_2"] = format("m1:D1%Xm|mC1qdwb:D3%Xm|mi:C1%XmU", n, n, n)
+end
+
+-- Conditional ops.
+for cc,n in pairs(map_cc) do
+ map_op["j"..cc.."_1"] = format("J.:n0F8%XJ", n) -- short: 7%X
+ map_op["set"..cc.."_1"] = format("mb:n0F9%X2m", n)
+ map_op["cmov"..cc.."_2"] = format("rmqdw:0F4%XrM", n) -- P6+
+end
+
+-- FP arithmetic ops.
+for name,n in pairs{ add = 0, mul = 1, com = 2, comp = 3,
+ sub = 4, subr = 5, div = 6, divr = 7 } do
+ local nc = 192 + n * 8
+ local nr = nc + (n < 4 and 0 or (n % 2 == 0 and 8 or -8))
+ local fn = "f"..name
+ map_op[fn.."_1"] = format("ff:D8%02Xr|xd:D8%Xm|xq:nDC%Xm", nc, n, n)
+ if n == 2 or n == 3 then
+ map_op[fn.."_2"] = format("Fff:D8%02XR|Fx2d:D8%XM|Fx2q:nDC%XM", nc, n, n)
+ else
+ map_op[fn.."_2"] = format("Fff:D8%02XR|fFf:DC%02Xr|Fx2d:D8%XM|Fx2q:nDC%XM", nc, nr, n, n)
+ map_op[fn.."p_1"] = format("ff:DE%02Xr", nr)
+ map_op[fn.."p_2"] = format("fFf:DE%02Xr", nr)
+ end
+ map_op["fi"..name.."_1"] = format("xd:DA%Xm|xw:nDE%Xm", n, n)
+end
+
+-- FP conditional moves.
+for cc,n in pairs{ b=0, e=1, be=2, u=3, nb=4, ne=5, nbe=6, nu=7 } do
+ local n4 = n % 4
+ local nc = 56000 + n4 * 8 + (n-n4) * 64
+ map_op["fcmov"..cc.."_1"] = format("ff:%04Xr", nc) -- P6+
+ map_op["fcmov"..cc.."_2"] = format("Fff:%04XR", nc) -- P6+
+end
+
+-- SSE FP arithmetic ops.
+for name,n in pairs{ sqrt = 1, add = 8, mul = 9,
+ sub = 12, min = 13, div = 14, max = 15 } do
+ map_op[name.."ps_2"] = format("rmo:0F5%XrM", n)
+ map_op[name.."ss_2"] = format("rro:F30F5%XrM|rx/od:", n)
+ map_op[name.."pd_2"] = format("rmo:660F5%XrM", n)
+ map_op[name.."sd_2"] = format("rro:F20F5%XrM|rx/oq:", n)
+end
+
+------------------------------------------------------------------------------
+
+-- Process pattern string.
+local function dopattern(pat, args, sz, op, needrex)
+ local digit, addin
+ local opcode = 0
+ local szov = sz
+ local narg = 1
+ local rex = 0
+
+ -- Limit number of section buffer positions used by a single dasm_put().
+ -- A single opcode needs a maximum of 5 positions.
+ if secpos+5 > maxsecpos then wflush() end
+
+ -- Process each character.
+ for c in gmatch(pat.."|", ".") do
+ if match(c, "%x") then -- Hex digit.
+ digit = byte(c) - 48
+ if digit > 48 then digit = digit - 39
+ elseif digit > 16 then digit = digit - 7 end
+ opcode = opcode*16 + digit
+ addin = nil
+ elseif c == "n" then -- Disable operand size mods for opcode.
+ szov = nil
+ elseif c == "X" then -- Force REX.W.
+ rex = 8
+ elseif c == "r" then -- Merge 1st operand regno. into opcode.
+ addin = args[1]; opcode = opcode + (addin.reg % 8)
+ if narg < 2 then narg = 2 end
+ elseif c == "R" then -- Merge 2nd operand regno. into opcode.
+ addin = args[2]; opcode = opcode + (addin.reg % 8)
+ narg = 3
+ elseif c == "m" or c == "M" then -- Encode ModRM/SIB.
+ local s
+ if addin then
+ s = addin.reg
+ opcode = opcode - (s%8) -- Undo regno opcode merge.
+ else
+ s = opcode % 16 -- Undo last digit.
+ opcode = (opcode - s) / 16
+ end
+ local nn = c == "m" and 1 or 2
+ local t = args[nn]
+ if narg <= nn then narg = nn + 1 end
+ if szov == "q" and rex == 0 then rex = rex + 8 end
+ if t.reg and t.reg > 7 then rex = rex + 1 end
+ if t.xreg and t.xreg > 7 then rex = rex + 2 end
+ if s > 7 then rex = rex + 4 end
+ if needrex then rex = rex + 16 end
+ wputop(szov, opcode, rex); opcode = nil
+ local imark = sub(pat, -1) -- Force a mark (ugly).
+ -- Put ModRM/SIB with regno/last digit as spare.
+ wputmrmsib(t, imark, s, addin and addin.vreg)
+ addin = nil
+ else
+ if opcode then -- Flush opcode.
+ if szov == "q" and rex == 0 then rex = rex + 8 end
+ if needrex then rex = rex + 16 end
+ if addin and addin.reg == -1 then
+ wputop(szov, opcode - 7, rex)
+ waction("VREG", addin.vreg); wputxb(0)
+ else
+ if addin and addin.reg > 7 then rex = rex + 1 end
+ wputop(szov, opcode, rex)
+ end
+ opcode = nil
+ end
+ if c == "|" then break end
+ if c == "o" then -- Offset (pure 32 bit displacement).
+ wputdarg(args[1].disp); if narg < 2 then narg = 2 end
+ elseif c == "O" then
+ wputdarg(args[2].disp); narg = 3
+ else
+ -- Anything else is an immediate operand.
+ local a = args[narg]
+ narg = narg + 1
+ local mode, imm = a.mode, a.imm
+ if mode == "iJ" and not match("iIJ", c) then
+ werror("bad operand size for label")
+ end
+ if c == "S" then
+ wputsbarg(imm)
+ elseif c == "U" then
+ wputbarg(imm)
+ elseif c == "W" then
+ wputwarg(imm)
+ elseif c == "i" or c == "I" then
+ if mode == "iJ" then
+ wputlabel("IMM_", imm, 1)
+ elseif mode == "iI" and c == "I" then
+ waction(sz == "w" and "IMM_WB" or "IMM_DB", imm)
+ else
+ wputszarg(sz, imm)
+ end
+ elseif c == "J" then
+ if mode == "iPJ" then
+ waction("REL_A", imm) -- !x64 (secpos)
+ else
+ wputlabel("REL_", imm, 2)
+ end
+ else
+ werror("bad char `"..c.."' in pattern `"..pat.."' for `"..op.."'")
+ end
+ end
+ end
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Mapping of operand modes to short names. Suppress output with '#'.
+local map_modename = {
+ r = "reg", R = "eax", C = "cl", x = "mem", m = "mrm", i = "imm",
+ f = "stx", F = "st0", J = "lbl", ["1"] = "1",
+ I = "#", S = "#", O = "#",
+}
+
+-- Return a table/string showing all possible operand modes.
+local function templatehelp(template, nparams)
+ if nparams == 0 then return "" end
+ local t = {}
+ for tm in gmatch(template, "[^%|]+") do
+ local s = map_modename[sub(tm, 1, 1)]
+ s = s..gsub(sub(tm, 2, nparams), ".", function(c)
+ return ", "..map_modename[c]
+ end)
+ if not match(s, "#") then t[#t+1] = s end
+ end
+ return t
+end
+
+-- Match operand modes against mode match part of template.
+local function matchtm(tm, args)
+ for i=1,#args do
+ if not match(args[i].mode, sub(tm, i, i)) then return end
+ end
+ return true
+end
+
+-- Handle opcodes defined with template strings.
+map_op[".template__"] = function(params, template, nparams)
+ if not params then return templatehelp(template, nparams) end
+ local args = {}
+
+ -- Zero-operand opcodes have no match part.
+ if #params == 0 then
+ dopattern(template, args, "d", params.op, nil)
+ return
+ end
+
+ -- Determine common operand size (coerce undefined size) or flag as mixed.
+ local sz, szmix, needrex
+ for i,p in ipairs(params) do
+ args[i] = parseoperand(p)
+ local nsz = args[i].opsize
+ if nsz then
+ if sz and sz ~= nsz then szmix = true else sz = nsz end
+ end
+ local nrex = args[i].needrex
+ if nrex ~= nil then
+ if needrex == nil then
+ needrex = nrex
+ elseif needrex ~= nrex then
+ werror("bad mix of byte-addressable registers")
+ end
+ end
+ end
+
+ -- Try all match:pattern pairs (separated by '|').
+ local gotmatch, lastpat
+ for tm in gmatch(template, "[^%|]+") do
+ -- Split off size match (starts after mode match) and pattern string.
+ local szm, pat = match(tm, "^(.-):(.*)$", #args+1)
+ if pat == "" then pat = lastpat else lastpat = pat end
+ if matchtm(tm, args) then
+ local prefix = sub(szm, 1, 1)
+ if prefix == "/" then -- Match both operand sizes.
+ if args[1].opsize == sub(szm, 2, 2) and
+ args[2].opsize == sub(szm, 3, 3) then
+ dopattern(pat, args, sz, params.op, needrex) -- Process pattern.
+ return
+ end
+ else -- Match common operand size.
+ local szp = sz
+ if szm == "" then szm = x64 and "qdwb" or "dwb" end -- Default sizes.
+ if prefix == "1" then szp = args[1].opsize; szmix = nil
+ elseif prefix == "2" then szp = args[2].opsize; szmix = nil end
+ if not szmix and (prefix == "." or match(szm, szp or "#")) then
+ dopattern(pat, args, szp, params.op, needrex) -- Process pattern.
+ return
+ end
+ end
+ gotmatch = true
+ end
+ end
+
+ local msg = "bad operand mode"
+ if gotmatch then
+ if szmix then
+ msg = "mixed operand size"
+ else
+ msg = sz and "bad operand size" or "missing operand size"
+ end
+ end
+
+ werror(msg.." in `"..opmodestr(params.op, args).."'")
+end
+
+------------------------------------------------------------------------------
+
+-- x64-specific opcode for 64 bit immediates and displacements.
+if x64 then
+ function map_op.mov64_2(params)
+ if not params then return { "reg, imm", "reg, [disp]", "[disp], reg" } end
+ if secpos+2 > maxsecpos then wflush() end
+ local opcode, op64, sz, rex
+ local op64 = match(params[1], "^%[%s*(.-)%s*%]$")
+ if op64 then
+ local a = parseoperand(params[2])
+ if a.mode ~= "rmR" then werror("bad operand mode") end
+ sz = a.opsize
+ rex = sz == "q" and 8 or 0
+ opcode = 0xa3
+ else
+ op64 = match(params[2], "^%[%s*(.-)%s*%]$")
+ local a = parseoperand(params[1])
+ if op64 then
+ if a.mode ~= "rmR" then werror("bad operand mode") end
+ sz = a.opsize
+ rex = sz == "q" and 8 or 0
+ opcode = 0xa1
+ else
+ if sub(a.mode, 1, 1) ~= "r" or a.opsize ~= "q" then
+ werror("bad operand mode")
+ end
+ op64 = params[2]
+ opcode = 0xb8 + (a.reg%8) -- !x64: no VREG support.
+ rex = a.reg > 7 and 9 or 8
+ end
+ end
+ wputop(sz, opcode, rex)
+ waction("IMM_D", format("(unsigned int)((uintptr_t)(%s))", op64))
+ waction("IMM_D", format("(unsigned int)(((uintptr_t)(%s))>>32)", op64))
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcodes for data storage.
+local function op_data(params)
+ if not params then return "imm..." end
+ local sz = sub(params.op, 2, 2)
+ if sz == "a" then sz = addrsize end
+ for _,p in ipairs(params) do
+ local a = parseoperand(p)
+ if sub(a.mode, 1, 1) ~= "i" or (a.opsize and a.opsize ~= sz) then
+ werror("bad mode or size in `"..p.."'")
+ end
+ if a.mode == "iJ" then
+ wputlabel("IMM_", a.imm, 1)
+ else
+ wputszarg(sz, a.imm)
+ end
+ if secpos+2 > maxsecpos then wflush() end
+ end
+end
+
+map_op[".byte_*"] = op_data
+map_op[".sbyte_*"] = op_data
+map_op[".word_*"] = op_data
+map_op[".dword_*"] = op_data
+map_op[".aword_*"] = op_data
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode to mark the position where the action list is to be emitted.
+map_op[".actionlist_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeactions(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the global enum is to be emitted.
+map_op[".globals_1"] = function(params)
+ if not params then return "prefix" end
+ local prefix = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeglobals(out, prefix) end)
+end
+
+-- Pseudo-opcode to mark the position where the global names are to be emitted.
+map_op[".globalnames_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeglobalnames(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the extern names are to be emitted.
+map_op[".externnames_1"] = function(params)
+ if not params then return "cvar" end
+ local name = params[1] -- No syntax check. You get to keep the pieces.
+ wline(function(out) writeexternnames(out, name) end)
+end
+
+------------------------------------------------------------------------------
+
+-- Label pseudo-opcode (converted from trailing colon form).
+map_op[".label_2"] = function(params)
+ if not params then return "[1-9] | ->global | =>pcexpr [, addr]" end
+ if secpos+2 > maxsecpos then wflush() end
+ local a = parseoperand(params[1])
+ local mode, imm = a.mode, a.imm
+ if type(imm) == "number" and (mode == "iJ" or (imm >= 1 and imm <= 9)) then
+ -- Local label (1: ... 9:) or global label (->global:).
+ waction("LABEL_LG", nil, 1)
+ wputxb(imm)
+ elseif mode == "iJ" then
+ -- PC label (=>pcexpr:).
+ waction("LABEL_PC", imm)
+ else
+ werror("bad label definition")
+ end
+ -- SETLABEL must immediately follow LABEL_LG/LABEL_PC.
+ local addr = params[2]
+ if addr then
+ local a = parseoperand(addr)
+ if a.mode == "iPJ" then
+ waction("SETLABEL", a.imm)
+ else
+ werror("bad label assignment")
+ end
+ end
+end
+map_op[".label_1"] = map_op[".label_2"]
+
+------------------------------------------------------------------------------
+
+-- Alignment pseudo-opcode.
+map_op[".align_1"] = function(params)
+ if not params then return "numpow2" end
+ if secpos+1 > maxsecpos then wflush() end
+ local align = tonumber(params[1]) or map_opsizenum[map_opsize[params[1]]]
+ if align then
+ local x = align
+ -- Must be a power of 2 in the range (2 ... 256).
+ for i=1,8 do
+ x = x / 2
+ if x == 1 then
+ waction("ALIGN", nil, 1)
+ wputxb(align-1) -- Action byte is 2**n-1.
+ return
+ end
+ end
+ end
+ werror("bad alignment")
+end
+
+-- Spacing pseudo-opcode.
+map_op[".space_2"] = function(params)
+ if not params then return "num [, filler]" end
+ if secpos+1 > maxsecpos then wflush() end
+ waction("SPACE", params[1])
+ local fill = params[2]
+ if fill then
+ fill = tonumber(fill)
+ if not fill or fill < 0 or fill > 255 then werror("bad filler") end
+ end
+ wputxb(fill or 0)
+end
+map_op[".space_1"] = map_op[".space_2"]
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode for (primitive) type definitions (map to C types).
+map_op[".type_3"] = function(params, nparams)
+ if not params then
+ return nparams == 2 and "name, ctype" or "name, ctype, reg"
+ end
+ local name, ctype, reg = params[1], params[2], params[3]
+ if not match(name, "^[%a_][%w_]*$") then
+ werror("bad type name `"..name.."'")
+ end
+ local tp = map_type[name]
+ if tp then
+ werror("duplicate type `"..name.."'")
+ end
+ if reg and not map_reg_valid_base[reg] then
+ werror("bad base register `"..(map_reg_rev[reg] or reg).."'")
+ end
+ -- Add #type to defines. A bit unclean to put it in map_archdef.
+ map_archdef["#"..name] = "sizeof("..ctype..")"
+ -- Add new type and emit shortcut define.
+ local num = ctypenum + 1
+ map_type[name] = {
+ ctype = ctype,
+ ctypefmt = format("Dt%X(%%s)", num),
+ reg = reg,
+ }
+ wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
+ ctypenum = num
+end
+map_op[".type_2"] = map_op[".type_3"]
+
+-- Dump type definitions.
+local function dumptypes(out, lvl)
+ local t = {}
+ for name in pairs(map_type) do t[#t+1] = name end
+ sort(t)
+ out:write("Type definitions:\n")
+ for _,name in ipairs(t) do
+ local tp = map_type[name]
+ local reg = tp.reg and map_reg_rev[tp.reg] or ""
+ out:write(format(" %-20s %-20s %s\n", name, tp.ctype, reg))
+ end
+ out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Set the current section.
+function _M.section(num)
+ waction("SECTION")
+ wputxb(num)
+ wflush(true) -- SECTION is a terminal action.
+end
+
+------------------------------------------------------------------------------
+
+-- Dump architecture description.
+function _M.dumparch(out)
+ out:write(format("DynASM %s version %s, released %s\n\n",
+ _info.arch, _info.version, _info.release))
+ dumpregs(out)
+ dumpactions(out)
+end
+
+-- Dump all user defined elements.
+function _M.dumpdef(out, lvl)
+ dumptypes(out, lvl)
+ dumpglobals(out, lvl)
+ dumpexterns(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Pass callbacks from/to the DynASM core.
+function _M.passcb(wl, we, wf, ww)
+ wline, werror, wfatal, wwarn = wl, we, wf, ww
+ return wflush
+end
+
+-- Setup the arch-specific module.
+function _M.setup(arch, opt)
+ g_arch, g_opt = arch, opt
+end
+
+-- Merge the core maps and the arch-specific maps.
+function _M.mergemaps(map_coreop, map_def)
+ setmetatable(map_op, { __index = map_coreop })
+ setmetatable(map_def, { __index = map_archdef })
+ return map_op, map_def
+end
+
+return _M
+
+------------------------------------------------------------------------------
+
diff --git a/plugins/MirLua/Modules/luaffi/src/dynasm/dynasm.lua b/plugins/MirLua/Modules/luaffi/src/dynasm/dynasm.lua new file mode 100644 index 0000000000..8226dccd5d --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/dynasm/dynasm.lua @@ -0,0 +1,1096 @@ +------------------------------------------------------------------------------
+-- DynASM. A dynamic assembler for code generation engines.
+-- Originally designed and implemented for LuaJIT.
+--
+-- Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+-- See below for full copyright notice.
+------------------------------------------------------------------------------
+
+-- Application information.
+local _info = {
+ name = "DynASM",
+ description = "A dynamic assembler for code generation engines",
+ version = "1.3.0",
+ vernum = 10300,
+ release = "2011-05-05",
+ author = "Mike Pall",
+ url = "http://luajit.org/dynasm.html",
+ license = "MIT",
+ copyright = [[
+Copyright (C) 2005-2011 Mike Pall. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+[ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+]],
+}
+
+-- Cache library functions.
+local type, pairs, ipairs = type, pairs, ipairs
+local pcall, error, assert = pcall, error, assert
+local _s = string
+local sub, match, gmatch, gsub = _s.sub, _s.match, _s.gmatch, _s.gsub
+local format, rep, upper = _s.format, _s.rep, _s.upper
+local _t = table
+local insert, remove, concat, sort = _t.insert, _t.remove, _t.concat, _t.sort
+local exit = os.exit
+local io = io
+local stdin, stdout, stderr = io.stdin, io.stdout, io.stderr
+
+------------------------------------------------------------------------------
+
+-- Program options.
+local g_opt = {}
+
+-- Global state for current file.
+local g_fname, g_curline, g_indent, g_lineno, g_synclineno, g_arch
+local g_errcount = 0
+
+-- Write buffer for output file.
+local g_wbuffer, g_capbuffer
+
+------------------------------------------------------------------------------
+
+-- Write an output line (or callback function) to the buffer.
+local function wline(line, needindent)
+ local buf = g_capbuffer or g_wbuffer
+ buf[#buf+1] = needindent and g_indent..line or line
+ g_synclineno = g_synclineno + 1
+end
+
+-- Write assembler line as a comment, if requestd.
+local function wcomment(aline)
+ if g_opt.comment then
+ wline(g_opt.comment..aline..g_opt.endcomment, true)
+ end
+end
+
+-- Resync CPP line numbers.
+local function wsync()
+ if g_synclineno ~= g_lineno and g_opt.cpp then
+ wline("# "..g_lineno..' "'..g_fname..'"')
+ g_synclineno = g_lineno
+ end
+end
+
+-- Dummy action flush function. Replaced with arch-specific function later.
+local function wflush(term)
+end
+
+-- Dump all buffered output lines.
+local function wdumplines(out, buf)
+ for _,line in ipairs(buf) do
+ if type(line) == "string" then
+ assert(out:write(line, "\n"))
+ else
+ -- Special callback to dynamically insert lines after end of processing.
+ line(out)
+ end
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Emit an error. Processing continues with next statement.
+local function werror(msg)
+ if g_opt.vserror then
+ error(format("%s(%s) : error: %s:\n%s", g_fname, g_lineno, msg, g_curline), 0)
+ else
+ error(format("%s:%s: error: %s:\n%s", g_fname, g_lineno, msg, g_curline), 0)
+ end
+end
+
+-- Emit a fatal error. Processing stops.
+local function wfatal(msg)
+ g_errcount = "fatal"
+ werror(msg)
+end
+
+-- Print a warning. Processing continues.
+local function wwarn(msg)
+ stderr:write(format("%s:%s: warning: %s:\n%s\n",
+ g_fname, g_lineno, msg, g_curline))
+end
+
+-- Print caught error message. But suppress excessive errors.
+local function wprinterr(...)
+ if type(g_errcount) == "number" then
+ -- Regular error.
+ g_errcount = g_errcount + 1
+ if g_errcount < 21 then -- Seems to be a reasonable limit.
+ stderr:write(...)
+ elseif g_errcount == 21 then
+ stderr:write(g_fname,
+ ":*: warning: too many errors (suppressed further messages).\n")
+ end
+ else
+ -- Fatal error.
+ stderr:write(...)
+ return true -- Stop processing.
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Map holding all option handlers.
+local opt_map = {}
+local opt_current
+
+-- Print error and exit with error status.
+local function opterror(...)
+ stderr:write("dynasm.lua: ERROR: ", ...)
+ stderr:write("\n")
+ exit(1)
+end
+
+-- Get option parameter.
+local function optparam(args)
+ local argn = args.argn
+ local p = args[argn]
+ if not p then
+ opterror("missing parameter for option `", opt_current, "'.")
+ end
+ args.argn = argn + 1
+ return p
+end
+
+------------------------------------------------------------------------------
+
+-- Core pseudo-opcodes.
+local map_coreop = {}
+-- Dummy opcode map. Replaced by arch-specific map.
+local map_op = {}
+
+-- Forward declarations.
+local dostmt
+local readfile
+
+------------------------------------------------------------------------------
+
+-- Map for defines (initially empty, chains to arch-specific map).
+local map_def = {}
+
+-- Pseudo-opcode to define a substitution.
+map_coreop[".define_2"] = function(params, nparams)
+ if not params then return nparams == 1 and "name" or "name, subst" end
+ local name, def = params[1], params[2] or "1"
+ if not match(name, "^[%a_][%w_]*$") then werror("bad or duplicate define") end
+ map_def[name] = def
+end
+map_coreop[".define_1"] = map_coreop[".define_2"]
+
+-- Define a substitution on the command line.
+function opt_map.D(args)
+ local namesubst = optparam(args)
+ local name, subst = match(namesubst, "^([%a_][%w_]*)=(.*)$")
+ if name then
+ map_def[name] = subst
+ elseif match(namesubst, "^[%a_][%w_]*$") then
+ map_def[namesubst] = "1"
+ else
+ opterror("bad define")
+ end
+end
+
+-- Undefine a substitution on the command line.
+function opt_map.U(args)
+ local name = optparam(args)
+ if match(name, "^[%a_][%w_]*$") then
+ map_def[name] = nil
+ else
+ opterror("bad define")
+ end
+end
+
+-- Helper for definesubst.
+local gotsubst
+
+local function definesubst_one(word)
+ local subst = map_def[word]
+ if subst then gotsubst = word; return subst else return word end
+end
+
+-- Iteratively substitute defines.
+local function definesubst(stmt)
+ -- Limit number of iterations.
+ for i=1,100 do
+ gotsubst = false
+ stmt = gsub(stmt, "#?[%w_]+", definesubst_one)
+ if not gotsubst then break end
+ end
+ if gotsubst then wfatal("recursive define involving `"..gotsubst.."'") end
+ return stmt
+end
+
+-- Dump all defines.
+local function dumpdefines(out, lvl)
+ local t = {}
+ for name in pairs(map_def) do
+ t[#t+1] = name
+ end
+ sort(t)
+ out:write("Defines:\n")
+ for _,name in ipairs(t) do
+ local subst = map_def[name]
+ if g_arch then subst = g_arch.revdef(subst) end
+ out:write(format(" %-20s %s\n", name, subst))
+ end
+ out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Support variables for conditional assembly.
+local condlevel = 0
+local condstack = {}
+
+local function loadin(source, env)
+ if setfenv then
+ local func, err = loadstring(source)
+ if func then
+ setfenv(func, env)
+ end
+ return func, err
+ else
+ return load(source, nil, nil, env)
+ end
+end
+
+-- Evaluate condition with a Lua expression. Substitutions already performed.
+local function cond_eval(cond)
+ -- No globals. All unknown identifiers evaluate to nil.
+ local func, err = loadin("return "..cond, {})
+ if func then
+ local ok, res = pcall(func)
+ if ok then
+ if res == 0 then return false end -- Oh well.
+ return not not res
+ end
+ err = res
+ end
+ wfatal("bad condition: "..err)
+end
+
+-- Skip statements until next conditional pseudo-opcode at the same level.
+local function stmtskip()
+ local dostmt_save = dostmt
+ local lvl = 0
+ dostmt = function(stmt)
+ local op = match(stmt, "^%s*(%S+)")
+ if op == ".if" then
+ lvl = lvl + 1
+ elseif lvl ~= 0 then
+ if op == ".endif" then lvl = lvl - 1 end
+ elseif op == ".elif" or op == ".else" or op == ".endif" then
+ dostmt = dostmt_save
+ dostmt(stmt)
+ end
+ end
+end
+
+-- Pseudo-opcodes for conditional assembly.
+map_coreop[".if_1"] = function(params)
+ if not params then return "condition" end
+ local lvl = condlevel + 1
+ local res = cond_eval(params[1])
+ condlevel = lvl
+ condstack[lvl] = res
+ if not res then stmtskip() end
+end
+
+map_coreop[".elif_1"] = function(params)
+ if not params then return "condition" end
+ if condlevel == 0 then wfatal(".elif without .if") end
+ local lvl = condlevel
+ local res = condstack[lvl]
+ if res then
+ if res == "else" then wfatal(".elif after .else") end
+ else
+ res = cond_eval(params[1])
+ if res then
+ condstack[lvl] = res
+ return
+ end
+ end
+ stmtskip()
+end
+
+map_coreop[".else_0"] = function(params)
+ if condlevel == 0 then wfatal(".else without .if") end
+ local lvl = condlevel
+ local res = condstack[lvl]
+ condstack[lvl] = "else"
+ if res then
+ if res == "else" then wfatal(".else after .else") end
+ stmtskip()
+ end
+end
+
+map_coreop[".endif_0"] = function(params)
+ local lvl = condlevel
+ if lvl == 0 then wfatal(".endif without .if") end
+ condlevel = lvl - 1
+end
+
+-- Check for unfinished conditionals.
+local function checkconds()
+ if g_errcount ~= "fatal" and condlevel ~= 0 then
+ wprinterr(g_fname, ":*: error: unbalanced conditional\n")
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Search for a file in the given path and open it for reading.
+local function pathopen(path, name)
+ local dirsep = match(package.path, "\\") and "\\" or "/"
+ for _,p in ipairs(path) do
+ local fullname = p == "" and name or p..dirsep..name
+ local fin = io.open(fullname, "r")
+ if fin then
+ g_fname = fullname
+ return fin
+ end
+ end
+end
+
+-- Include a file.
+map_coreop[".include_1"] = function(params)
+ if not params then return "filename" end
+ local name = params[1]
+ -- Save state. Ugly, I know. but upvalues are fast.
+ local gf, gl, gcl, gi = g_fname, g_lineno, g_curline, g_indent
+ -- Read the included file.
+ local fatal = readfile(pathopen(g_opt.include, name) or
+ wfatal("include file `"..name.."' not found"))
+ -- Restore state.
+ g_synclineno = -1
+ g_fname, g_lineno, g_curline, g_indent = gf, gl, gcl, gi
+ if fatal then wfatal("in include file") end
+end
+
+-- Make .include and conditionals initially available, too.
+map_op[".include_1"] = map_coreop[".include_1"]
+map_op[".if_1"] = map_coreop[".if_1"]
+map_op[".elif_1"] = map_coreop[".elif_1"]
+map_op[".else_0"] = map_coreop[".else_0"]
+map_op[".endif_0"] = map_coreop[".endif_0"]
+
+------------------------------------------------------------------------------
+
+-- Support variables for macros.
+local mac_capture, mac_lineno, mac_name
+local mac_active = {}
+local mac_list = {}
+
+-- Pseudo-opcode to define a macro.
+map_coreop[".macro_*"] = function(mparams)
+ if not mparams then return "name [, params...]" end
+ -- Split off and validate macro name.
+ local name = remove(mparams, 1)
+ if not name then werror("missing macro name") end
+ if not (match(name, "^[%a_][%w_%.]*$") or match(name, "^%.[%w_%.]+$")) then
+ wfatal("bad macro name `"..name.."'")
+ end
+ -- Validate macro parameter names.
+ local mdup = {}
+ for _,mp in ipairs(mparams) do
+ if not match(mp, "^[%a_][%w_]*$") then
+ wfatal("bad macro parameter name `"..mp.."'")
+ end
+ if mdup[mp] then wfatal("duplicate macro parameter name `"..mp.."'") end
+ mdup[mp] = true
+ end
+ -- Check for duplicate or recursive macro definitions.
+ local opname = name.."_"..#mparams
+ if map_op[opname] or map_op[name.."_*"] then
+ wfatal("duplicate macro `"..name.."' ("..#mparams.." parameters)")
+ end
+ if mac_capture then wfatal("recursive macro definition") end
+
+ -- Enable statement capture.
+ local lines = {}
+ mac_lineno = g_lineno
+ mac_name = name
+ mac_capture = function(stmt) -- Statement capture function.
+ -- Stop macro definition with .endmacro pseudo-opcode.
+ if not match(stmt, "^%s*.endmacro%s*$") then
+ lines[#lines+1] = stmt
+ return
+ end
+ mac_capture = nil
+ mac_lineno = nil
+ mac_name = nil
+ mac_list[#mac_list+1] = opname
+ -- Add macro-op definition.
+ map_op[opname] = function(params)
+ if not params then return mparams, lines end
+ -- Protect against recursive macro invocation.
+ if mac_active[opname] then wfatal("recursive macro invocation") end
+ mac_active[opname] = true
+ -- Setup substitution map.
+ local subst = {}
+ for i,mp in ipairs(mparams) do subst[mp] = params[i] end
+ local mcom
+ if g_opt.maccomment and g_opt.comment then
+ mcom = " MACRO "..name.." ("..#mparams..")"
+ wcomment("{"..mcom)
+ end
+ -- Loop through all captured statements
+ for _,stmt in ipairs(lines) do
+ -- Substitute macro parameters.
+ local st = gsub(stmt, "[%w_]+", subst)
+ st = definesubst(st)
+ st = gsub(st, "%s*%.%.%s*", "") -- Token paste a..b.
+ if mcom and sub(st, 1, 1) ~= "|" then wcomment(st) end
+ -- Emit statement. Use a protected call for better diagnostics.
+ local ok, err = pcall(dostmt, st)
+ if not ok then
+ -- Add the captured statement to the error.
+ wprinterr(err, "\n", g_indent, "| ", stmt,
+ "\t[MACRO ", name, " (", #mparams, ")]\n")
+ end
+ end
+ if mcom then wcomment("}"..mcom) end
+ mac_active[opname] = nil
+ end
+ end
+end
+
+-- An .endmacro pseudo-opcode outside of a macro definition is an error.
+map_coreop[".endmacro_0"] = function(params)
+ wfatal(".endmacro without .macro")
+end
+
+-- Dump all macros and their contents (with -PP only).
+local function dumpmacros(out, lvl)
+ sort(mac_list)
+ out:write("Macros:\n")
+ for _,opname in ipairs(mac_list) do
+ local name = sub(opname, 1, -3)
+ local params, lines = map_op[opname]()
+ out:write(format(" %-20s %s\n", name, concat(params, ", ")))
+ if lvl > 1 then
+ for _,line in ipairs(lines) do
+ out:write(" |", line, "\n")
+ end
+ out:write("\n")
+ end
+ end
+ out:write("\n")
+end
+
+-- Check for unfinished macro definitions.
+local function checkmacros()
+ if mac_capture then
+ wprinterr(g_fname, ":", mac_lineno,
+ ": error: unfinished .macro `", mac_name ,"'\n")
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Support variables for captures.
+local cap_lineno, cap_name
+local cap_buffers = {}
+local cap_used = {}
+
+-- Start a capture.
+map_coreop[".capture_1"] = function(params)
+ if not params then return "name" end
+ wflush()
+ local name = params[1]
+ if not match(name, "^[%a_][%w_]*$") then
+ wfatal("bad capture name `"..name.."'")
+ end
+ if cap_name then
+ wfatal("already capturing to `"..cap_name.."' since line "..cap_lineno)
+ end
+ cap_name = name
+ cap_lineno = g_lineno
+ -- Create or continue a capture buffer and start the output line capture.
+ local buf = cap_buffers[name]
+ if not buf then buf = {}; cap_buffers[name] = buf end
+ g_capbuffer = buf
+ g_synclineno = 0
+end
+
+-- Stop a capture.
+map_coreop[".endcapture_0"] = function(params)
+ wflush()
+ if not cap_name then wfatal(".endcapture without a valid .capture") end
+ cap_name = nil
+ cap_lineno = nil
+ g_capbuffer = nil
+ g_synclineno = 0
+end
+
+-- Dump a capture buffer.
+map_coreop[".dumpcapture_1"] = function(params)
+ if not params then return "name" end
+ wflush()
+ local name = params[1]
+ if not match(name, "^[%a_][%w_]*$") then
+ wfatal("bad capture name `"..name.."'")
+ end
+ cap_used[name] = true
+ wline(function(out)
+ local buf = cap_buffers[name]
+ if buf then wdumplines(out, buf) end
+ end)
+ g_synclineno = 0
+end
+
+-- Dump all captures and their buffers (with -PP only).
+local function dumpcaptures(out, lvl)
+ out:write("Captures:\n")
+ for name,buf in pairs(cap_buffers) do
+ out:write(format(" %-20s %4s)\n", name, "("..#buf))
+ if lvl > 1 then
+ local bar = rep("=", 76)
+ out:write(" ", bar, "\n")
+ for _,line in ipairs(buf) do
+ out:write(" ", line, "\n")
+ end
+ out:write(" ", bar, "\n\n")
+ end
+ end
+ out:write("\n")
+end
+
+-- Check for unfinished or unused captures.
+local function checkcaptures()
+ if cap_name then
+ wprinterr(g_fname, ":", cap_lineno,
+ ": error: unfinished .capture `", cap_name,"'\n")
+ return
+ end
+ for name in pairs(cap_buffers) do
+ if not cap_used[name] then
+ wprinterr(g_fname, ":*: error: missing .dumpcapture ", name ,"\n")
+ end
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Sections names.
+local map_sections = {}
+
+-- Pseudo-opcode to define code sections.
+-- TODO: Data sections, BSS sections. Needs extra C code and API.
+map_coreop[".section_*"] = function(params)
+ if not params then return "name..." end
+ if #map_sections > 0 then werror("duplicate section definition") end
+ wflush()
+ for sn,name in ipairs(params) do
+ local opname = "."..name.."_0"
+ if not match(name, "^[%a][%w_]*$") or
+ map_op[opname] or map_op["."..name.."_*"] then
+ werror("bad section name `"..name.."'")
+ end
+ map_sections[#map_sections+1] = name
+ wline(format("#define DASM_SECTION_%s\t%d", upper(name), sn-1))
+ map_op[opname] = function(params) g_arch.section(sn-1) end
+ end
+ wline(format("#define DASM_MAXSECTION\t\t%d", #map_sections))
+end
+
+-- Dump all sections.
+local function dumpsections(out, lvl)
+ out:write("Sections:\n")
+ for _,name in ipairs(map_sections) do
+ out:write(format(" %s\n", name))
+ end
+ out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Load architecture-specific module.
+local function loadarch(arch)
+ if not match(arch, "^[%w_]+$") then return "bad arch name" end
+ local ok, m_arch = pcall(require, "dasm_"..arch)
+ if not ok then return "cannot load module: "..m_arch end
+ g_arch = m_arch
+ wflush = m_arch.passcb(wline, werror, wfatal, wwarn)
+ m_arch.setup(arch, g_opt)
+ map_op, map_def = m_arch.mergemaps(map_coreop, map_def)
+end
+
+-- Dump architecture description.
+function opt_map.dumparch(args)
+ local name = optparam(args)
+ if not g_arch then
+ local err = loadarch(name)
+ if err then opterror(err) end
+ end
+
+ local t = {}
+ for name in pairs(map_coreop) do t[#t+1] = name end
+ for name in pairs(map_op) do t[#t+1] = name end
+ sort(t)
+
+ local out = stdout
+ local _arch = g_arch._info
+ out:write(format("%s version %s, released %s, %s\n",
+ _info.name, _info.version, _info.release, _info.url))
+ g_arch.dumparch(out)
+
+ local pseudo = true
+ out:write("Pseudo-Opcodes:\n")
+ for _,sname in ipairs(t) do
+ local name, nparam = match(sname, "^(.+)_([0-9%*])$")
+ if name then
+ if pseudo and sub(name, 1, 1) ~= "." then
+ out:write("\nOpcodes:\n")
+ pseudo = false
+ end
+ local f = map_op[sname]
+ local s
+ if nparam ~= "*" then nparam = nparam + 0 end
+ if nparam == 0 then
+ s = ""
+ elseif type(f) == "string" then
+ s = map_op[".template__"](nil, f, nparam)
+ else
+ s = f(nil, nparam)
+ end
+ if type(s) == "table" then
+ for _,s2 in ipairs(s) do
+ out:write(format(" %-12s %s\n", name, s2))
+ end
+ else
+ out:write(format(" %-12s %s\n", name, s))
+ end
+ end
+ end
+ out:write("\n")
+ exit(0)
+end
+
+-- Pseudo-opcode to set the architecture.
+-- Only initially available (map_op is replaced when called).
+map_op[".arch_1"] = function(params)
+ if not params then return "name" end
+ local err = loadarch(params[1])
+ if err then wfatal(err) end
+end
+
+-- Dummy .arch pseudo-opcode to improve the error report.
+map_coreop[".arch_1"] = function(params)
+ if not params then return "name" end
+ wfatal("duplicate .arch statement")
+end
+
+------------------------------------------------------------------------------
+
+-- Dummy pseudo-opcode. Don't confuse '.nop' with 'nop'.
+map_coreop[".nop_*"] = function(params)
+ if not params then return "[ignored...]" end
+end
+
+-- Pseudo-opcodes to raise errors.
+map_coreop[".error_1"] = function(params)
+ if not params then return "message" end
+ werror(params[1])
+end
+
+map_coreop[".fatal_1"] = function(params)
+ if not params then return "message" end
+ wfatal(params[1])
+end
+
+-- Dump all user defined elements.
+local function dumpdef(out)
+ local lvl = g_opt.dumpdef
+ if lvl == 0 then return end
+ dumpsections(out, lvl)
+ dumpdefines(out, lvl)
+ if g_arch then g_arch.dumpdef(out, lvl) end
+ dumpmacros(out, lvl)
+ dumpcaptures(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Helper for splitstmt.
+local splitlvl
+
+local function splitstmt_one(c)
+ if c == "(" then
+ splitlvl = ")"..splitlvl
+ elseif c == "[" then
+ splitlvl = "]"..splitlvl
+ elseif c == "{" then
+ splitlvl = "}"..splitlvl
+ elseif c == ")" or c == "]" or c == "}" then
+ if sub(splitlvl, 1, 1) ~= c then werror("unbalanced (), [] or {}") end
+ splitlvl = sub(splitlvl, 2)
+ elseif splitlvl == "" then
+ return " \0 "
+ end
+ return c
+end
+
+-- Split statement into (pseudo-)opcode and params.
+local function splitstmt(stmt)
+ -- Convert label with trailing-colon into .label statement.
+ local label = match(stmt, "^%s*(.+):%s*$")
+ if label then return ".label", {label} end
+
+ -- Split at commas and equal signs, but obey parentheses and brackets.
+ splitlvl = ""
+ stmt = gsub(stmt, "[,%(%)%[%]{}]", splitstmt_one)
+ if splitlvl ~= "" then werror("unbalanced () or []") end
+
+ -- Split off opcode.
+ local op, other = match(stmt, "^%s*([^%s%z]+)%s*(.*)$")
+ if not op then werror("bad statement syntax") end
+
+ -- Split parameters.
+ local params = {}
+ for p in gmatch(other, "%s*(%Z+)%z?") do
+ params[#params+1] = gsub(p, "%s+$", "")
+ end
+ if #params > 16 then werror("too many parameters") end
+
+ params.op = op
+ return op, params
+end
+
+-- Process a single statement.
+dostmt = function(stmt)
+ -- Ignore empty statements.
+ if match(stmt, "^%s*$") then return end
+
+ -- Capture macro defs before substitution.
+ if mac_capture then return mac_capture(stmt) end
+ stmt = definesubst(stmt)
+
+ -- Emit C code without parsing the line.
+ if sub(stmt, 1, 1) == "|" then
+ local tail = sub(stmt, 2)
+ wflush()
+ if sub(tail, 1, 2) == "//" then wcomment(tail) else wline(tail, true) end
+ return
+ end
+
+ -- Split into (pseudo-)opcode and params.
+ local op, params = splitstmt(stmt)
+
+ -- Get opcode handler (matching # of parameters or generic handler).
+ local f = map_op[op.."_"..#params] or map_op[op.."_*"]
+ if not f then
+ if not g_arch then wfatal("first statement must be .arch") end
+ -- Improve error report.
+ for i=0,9 do
+ if map_op[op.."_"..i] then
+ werror("wrong number of parameters for `"..op.."'")
+ end
+ end
+ werror("unknown statement `"..op.."'")
+ end
+
+ -- Call opcode handler or special handler for template strings.
+ if type(f) == "string" then
+ map_op[".template__"](params, f)
+ else
+ f(params)
+ end
+end
+
+-- Process a single line.
+local function doline(line)
+ if g_opt.flushline then wflush() end
+
+ -- Assembler line?
+ local indent, aline = match(line, "^(%s*)%|(.*)$")
+ if not aline then
+ -- No, plain C code line, need to flush first.
+ wflush()
+ wsync()
+ wline(line, false)
+ return
+ end
+
+ g_indent = indent -- Remember current line indentation.
+
+ -- Emit C code (even from macros). Avoids echo and line parsing.
+ if sub(aline, 1, 1) == "|" then
+ if not mac_capture then
+ wsync()
+ elseif g_opt.comment then
+ wsync()
+ wcomment(aline)
+ end
+ dostmt(aline)
+ return
+ end
+
+ -- Echo assembler line as a comment.
+ if g_opt.comment then
+ wsync()
+ wcomment(aline)
+ end
+
+ -- Strip assembler comments.
+ aline = gsub(aline, "//.*$", "")
+
+ -- Split line into statements at semicolons.
+ if match(aline, ";") then
+ for stmt in gmatch(aline, "[^;]+") do dostmt(stmt) end
+ else
+ dostmt(aline)
+ end
+end
+
+------------------------------------------------------------------------------
+
+-- Write DynASM header.
+local function dasmhead(out)
+ out:write(format([[
+/*
+** This file has been pre-processed with DynASM.
+** %s
+** DynASM version %s, DynASM %s version %s
+** DO NOT EDIT! The original file is in "%s".
+*/
+
+#if DASM_VERSION != %d
+#error "Version mismatch between DynASM and included encoding engine"
+#endif
+
+]], _info.url,
+ _info.version, g_arch._info.arch, g_arch._info.version,
+ g_fname, _info.vernum))
+end
+
+-- Read input file.
+readfile = function(fin)
+ g_indent = ""
+ g_lineno = 0
+ g_synclineno = -1
+
+ -- Process all lines.
+ for line in fin:lines() do
+ g_lineno = g_lineno + 1
+ g_curline = line
+ local ok, err = pcall(doline, line)
+ if not ok and wprinterr(err, "\n") then return true end
+ end
+ wflush()
+
+ -- Close input file.
+ assert(fin == stdin or fin:close())
+end
+
+-- Write output file.
+local function writefile(outfile)
+ local fout
+
+ -- Open output file.
+ if outfile == nil or outfile == "-" then
+ fout = stdout
+ else
+ fout = assert(io.open(outfile, "w"))
+ end
+
+ -- Write all buffered lines
+ wdumplines(fout, g_wbuffer)
+
+ -- Close output file.
+ assert(fout == stdout or fout:close())
+
+ -- Optionally dump definitions.
+ dumpdef(fout == stdout and stderr or stdout)
+end
+
+-- Translate an input file to an output file.
+local function translate(infile, outfile)
+ g_wbuffer = {}
+ g_indent = ""
+ g_lineno = 0
+ g_synclineno = -1
+
+ -- Put header.
+ wline(dasmhead)
+
+ -- Read input file.
+ local fin
+ if infile == "-" then
+ g_fname = "(stdin)"
+ fin = stdin
+ else
+ g_fname = infile
+ fin = assert(io.open(infile, "r"))
+ end
+ readfile(fin)
+
+ -- Check for errors.
+ if not g_arch then
+ wprinterr(g_fname, ":*: error: missing .arch directive\n")
+ end
+ checkconds()
+ checkmacros()
+ checkcaptures()
+
+ if g_errcount ~= 0 then
+ stderr:write(g_fname, ":*: info: ", g_errcount, " error",
+ (type(g_errcount) == "number" and g_errcount > 1) and "s" or "",
+ " in input file -- no output file generated.\n")
+ dumpdef(stderr)
+ exit(1)
+ end
+
+ -- Write output file.
+ writefile(outfile)
+end
+
+------------------------------------------------------------------------------
+
+-- Print help text.
+function opt_map.help()
+ stdout:write("DynASM -- ", _info.description, ".\n")
+ stdout:write("DynASM ", _info.version, " ", _info.release, " ", _info.url, "\n")
+ stdout:write[[
+
+Usage: dynasm [OPTION]... INFILE.dasc|-
+
+ -h, --help Display this help text.
+ -V, --version Display version and copyright information.
+
+ -o, --outfile FILE Output file name (default is stdout).
+ -I, --include DIR Add directory to the include search path.
+
+ -c, --ccomment Use /* */ comments for assembler lines.
+ -C, --cppcomment Use // comments for assembler lines (default).
+ -N, --nocomment Suppress assembler lines in output.
+ -M, --maccomment Show macro expansions as comments (default off).
+
+ -L, --nolineno Suppress CPP line number information in output.
+ -F, --flushline Flush action list for every line.
+
+ -E, --vserror Use Visual Studio style errors file(line) vs file:line
+
+ -D NAME[=SUBST] Define a substitution.
+ -U NAME Undefine a substitution.
+
+ -P, --dumpdef Dump defines, macros, etc. Repeat for more output.
+ -A, --dumparch ARCH Load architecture ARCH and dump description.
+]]
+ exit(0)
+end
+
+-- Print version information.
+function opt_map.version()
+ stdout:write(format("%s version %s, released %s\n%s\n\n%s",
+ _info.name, _info.version, _info.release, _info.url, _info.copyright))
+ exit(0)
+end
+
+-- Misc. options.
+function opt_map.outfile(args) g_opt.outfile = optparam(args) end
+function opt_map.include(args) insert(g_opt.include, 1, optparam(args)) end
+function opt_map.ccomment() g_opt.comment = "/*|"; g_opt.endcomment = " */" end
+function opt_map.cppcomment() g_opt.comment = "//|"; g_opt.endcomment = "" end
+function opt_map.nocomment() g_opt.comment = false end
+function opt_map.maccomment() g_opt.maccomment = true end
+function opt_map.nolineno() g_opt.cpp = false end
+function opt_map.flushline() g_opt.flushline = true end
+function opt_map.vserror() g_opt.vserror = true end
+function opt_map.dumpdef() g_opt.dumpdef = g_opt.dumpdef + 1 end
+
+------------------------------------------------------------------------------
+
+-- Short aliases for long options.
+local opt_alias = {
+ h = "help", ["?"] = "help", V = "version",
+ o = "outfile", I = "include",
+ c = "ccomment", C = "cppcomment", N = "nocomment", M = "maccomment",
+ L = "nolineno", F = "flushline",
+ E = "vserror",
+ P = "dumpdef", A = "dumparch",
+}
+
+-- Parse single option.
+local function parseopt(opt, args)
+ opt_current = #opt == 1 and "-"..opt or "--"..opt
+ local f = opt_map[opt] or opt_map[opt_alias[opt]]
+ if not f then
+ opterror("unrecognized option `", opt_current, "'. Try `--help'.\n")
+ end
+ f(args)
+end
+
+-- Parse arguments.
+local function parseargs(args)
+ -- Default options.
+ g_opt.comment = "//|"
+ g_opt.endcomment = ""
+ g_opt.cpp = true
+ g_opt.dumpdef = 0
+ g_opt.include = { "" }
+
+ -- Process all option arguments.
+ args.argn = 1
+ repeat
+ local a = args[args.argn]
+ if not a then break end
+ local lopt, opt = match(a, "^%-(%-?)(.+)")
+ if not opt then break end
+ args.argn = args.argn + 1
+ if lopt == "" then
+ -- Loop through short options.
+ for o in gmatch(opt, ".") do parseopt(o, args) end
+ else
+ -- Long option.
+ parseopt(opt, args)
+ end
+ until false
+
+ -- Check for proper number of arguments.
+ local nargs = #args - args.argn + 1
+ if nargs ~= 1 then
+ if nargs == 0 then
+ if g_opt.dumpdef > 0 then return dumpdef(stdout) end
+ end
+ opt_map.help()
+ end
+
+ -- Translate a single input file to a single output file
+ -- TODO: Handle multiple files?
+ translate(args[args.argn], g_opt.outfile)
+end
+
+------------------------------------------------------------------------------
+
+-- Add the directory dynasm.lua resides in to the Lua module search path.
+local arg = arg
+if arg and arg[0] then
+ local prefix = match(arg[0], "^(.*[/\\])")
+ if prefix then package.path = prefix.."?.lua;"..package.path end
+end
+
+-- Start DynASM.
+parseargs{...}
+
+------------------------------------------------------------------------------
+
diff --git a/plugins/MirLua/Modules/luaffi/src/ffi.c b/plugins/MirLua/Modules/luaffi/src/ffi.c new file mode 100644 index 0000000000..d3f7b67cd3 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/ffi.c @@ -0,0 +1,3334 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+#include "ffi.h"
+#include <math.h>
+#include <inttypes.h>
+
+/* Set to 1 to get extra debugging on print */
+#define DEBUG_TOSTRING 0
+
+int jit_key;
+int ctype_mt_key;
+int cdata_mt_key;
+int callback_mt_key;
+int cmodule_mt_key;
+int constants_key;
+int types_key;
+int gc_key;
+int callbacks_key;
+int functions_key;
+int abi_key;
+int next_unnamed_key;
+int niluv_key;
+int asmname_key;
+
+void push_upval(lua_State* L, int* key)
+{
+ lua_pushlightuserdata(L, key);
+ lua_rawget(L, LUA_REGISTRYINDEX);
+}
+
+void set_upval(lua_State* L, int* key)
+{
+ lua_pushlightuserdata(L, key);
+ lua_insert(L, -2);
+ lua_rawset(L, LUA_REGISTRYINDEX);
+}
+
+int equals_upval(lua_State* L, int idx, int* key)
+{
+ int ret;
+ lua_pushvalue(L, idx);
+ push_upval(L, key);
+ ret = lua_rawequal(L, -2, -1);
+ lua_pop(L, 2);
+ return ret;
+}
+
+struct jit* get_jit(lua_State* L)
+{
+ struct jit* jit;
+ push_upval(L, &jit_key);
+ jit = (struct jit*) lua_touserdata(L, -1);
+ jit->L = L;
+ lua_pop(L, 1); /* still in registry */
+ return jit;
+}
+
+static int type_error(lua_State* L, int idx, const char* to_type, int to_usr, const struct ctype* to_ct)
+{
+ luaL_Buffer B;
+ struct ctype ft;
+
+ assert(to_type || (to_usr && to_ct));
+ if (to_usr) {
+ to_usr = lua_absindex(L, to_usr);
+ }
+
+ idx = lua_absindex(L, idx);
+
+ luaL_buffinit(L, &B);
+ to_cdata(L, idx, &ft);
+
+ if (ft.type != INVALID_TYPE) {
+ push_type_name(L, -1, &ft);
+ lua_pushfstring(L, "unable to convert argument %d from cdata<%s> to cdata<", idx, lua_tostring(L, -1));
+ lua_remove(L, -2);
+ luaL_addvalue(&B);
+ } else {
+ lua_pushfstring(L, "unable to convert argument %d from lua<%s> to cdata<", idx, luaL_typename(L, idx));
+ luaL_addvalue(&B);
+ }
+
+ if (to_ct) {
+ push_type_name(L, to_usr, to_ct);
+ luaL_addvalue(&B);
+ } else {
+ luaL_addstring(&B, to_type);
+ }
+
+ luaL_addchar(&B, '>');
+
+ luaL_pushresult(&B);
+ return lua_error(L);
+}
+
+static int64_t check_intptr(lua_State* L, int idx, void* p, struct ctype* ct)
+{
+ if (ct->type == INVALID_TYPE) {
+ int64_t ret;
+ memset(ct, 0, sizeof(*ct));
+ ct->base_size = 8;
+ ct->type = INT64_TYPE;
+ ct->is_defined = 1;
+ ret = luaL_checknumber(L, idx);
+ return ret;
+
+ } else if (ct->pointers) {
+ return (intptr_t) p;
+ }
+
+ switch (ct->type) {
+ case INTPTR_TYPE:
+ case FUNCTION_PTR_TYPE:
+ return *(intptr_t*) p;
+
+ case INT64_TYPE:
+ return *(int64_t*) p;
+
+ case INT32_TYPE:
+ return ct->is_unsigned ? (int64_t) *(uint32_t*) p : (int64_t) *(int32_t*) p;
+
+ case INT16_TYPE:
+ return ct->is_unsigned ? (int64_t) *(uint16_t*) p : (int64_t) *(int16_t*) p;
+
+ case INT8_TYPE:
+ return ct->is_unsigned ? (int64_t) *(uint8_t*) p : (int64_t) *(int8_t*) p;
+
+ default:
+ type_error(L, idx, "intptr_t", 0, NULL);
+ return 0;
+ }
+}
+
+#define TO_NUMBER(TYPE, ALLOW_POINTERS) \
+ TYPE real = 0, imag = 0; \
+ void* p; \
+ struct ctype ct; \
+ \
+ switch (lua_type(L, idx)) { \
+ case LUA_TBOOLEAN: \
+ real = (TYPE) lua_toboolean(L, idx); \
+ break; \
+ \
+ case LUA_TNUMBER: \
+ real = (TYPE) lua_tonumber(L, idx); \
+ break; \
+ \
+ case LUA_TSTRING: \
+ if (!ALLOW_POINTERS) { \
+ type_error(L, idx, #TYPE, 0, NULL); \
+ } \
+ real = (TYPE) (intptr_t) lua_tostring(L, idx); \
+ break; \
+ \
+ case LUA_TLIGHTUSERDATA: \
+ if (!ALLOW_POINTERS) { \
+ type_error(L, idx, #TYPE, 0, NULL); \
+ } \
+ real = (TYPE) (intptr_t) lua_topointer(L, idx); \
+ break; \
+ \
+ case LUA_TUSERDATA: \
+ p = to_cdata(L, idx, &ct); \
+ \
+ if (ct.type == INVALID_TYPE) { \
+ if (!ALLOW_POINTERS) { \
+ type_error(L, idx, #TYPE, 0, NULL); \
+ } \
+ real = (TYPE) (intptr_t) p; \
+ } else if (ct.pointers || ct.type == STRUCT_TYPE || ct.type == UNION_TYPE) {\
+ if (!ALLOW_POINTERS) { \
+ type_error(L, idx, #TYPE, 0, NULL); \
+ } \
+ real = (TYPE) (intptr_t) p; \
+ } else if (ct.type == COMPLEX_DOUBLE_TYPE) { \
+ real = (TYPE) creal(*(complex_double*) p); \
+ imag = (TYPE) cimag(*(complex_double*) p); \
+ } else if (ct.type == COMPLEX_FLOAT_TYPE) { \
+ real = (TYPE) crealf(*(complex_float*) p); \
+ imag = (TYPE) cimagf(*(complex_float*) p); \
+ } else if (ct.type == DOUBLE_TYPE) { \
+ real = (TYPE) *(double*) p; \
+ } else if (ct.type == FLOAT_TYPE) { \
+ real = (TYPE) *(float*) p; \
+ } else { \
+ real = check_intptr(L, idx, p, &ct); \
+ } \
+ lua_pop(L, 1); \
+ break; \
+ \
+ case LUA_TNIL: \
+ real = (TYPE) 0; \
+ break; \
+ \
+ default: \
+ type_error(L, idx, #TYPE, 0, NULL); \
+ } \
+
+static int64_t cast_int64(lua_State* L, int idx, int is_cast)
+{ TO_NUMBER(int64_t, is_cast); (void) imag; return real; }
+
+static uint64_t cast_uint64(lua_State* L, int idx, int is_cast)
+{ TO_NUMBER(uint64_t, is_cast); (void) imag; return real; }
+
+int32_t check_int32(lua_State* L, int idx)
+{ return (int32_t) cast_int64(L, idx, 0); }
+
+uint32_t check_uint32(lua_State* L, int idx)
+{ return (uint32_t) cast_uint64(L, idx, 0); }
+
+int64_t check_int64(lua_State* L, int idx)
+{ return cast_int64(L, idx, 0); }
+
+uint64_t check_uint64(lua_State* L, int idx)
+{ return cast_uint64(L, idx, 0); }
+
+static void do_check_double(lua_State* L, int idx, double* preal, double* pimag)
+{
+ TO_NUMBER(double, 0);
+ if (preal) *preal = real;
+ if (pimag) *pimag = imag;
+}
+
+double check_double(lua_State* L, int idx)
+{ double ret; do_check_double(L, idx, &ret, NULL); return ret; }
+
+float check_float(lua_State* L, int idx)
+{ double ret; do_check_double(L, idx, &ret, NULL); return ret; }
+
+uintptr_t check_uintptr(lua_State* L, int idx)
+{ TO_NUMBER(uintptr_t, 1); (void) imag; return real; }
+
+#ifdef HAVE_COMPLEX
+complex_double check_complex_double(lua_State* L, int idx)
+{ double real, imag; do_check_double(L, idx, &real, &imag); return real + imag * 1i; }
+
+complex_float check_complex_float(lua_State* L, int idx)
+{ double real, imag; do_check_double(L, idx, &real, &imag); return real + imag * 1i; }
+
+#else
+complex_double check_complex_double(lua_State* L, int idx)
+{
+ complex_double c;
+ do_check_double(L, idx, &c.real, &c.imag);
+ return c;
+}
+
+complex_float check_complex_float(lua_State* L, int idx)
+{
+ complex_double d;
+ complex_float f;
+ do_check_double(L, idx, &d.real, &d.imag);
+ f.real = d.real;
+ f.imag = d.imag;
+ return f;
+}
+#endif
+
+static size_t unpack_vararg(lua_State* L, int i, char* to)
+{
+ void* p;
+ struct ctype ct;
+
+ switch (lua_type(L, i)) {
+ case LUA_TBOOLEAN:
+ *(int*) to = lua_toboolean(L, i);
+ return sizeof(int);
+
+ case LUA_TNUMBER:
+ *(double*) to = lua_tonumber(L, i);
+ return sizeof(double);
+
+ case LUA_TSTRING:
+ *(const char**) to = lua_tostring(L, i);
+ return sizeof(const char*);
+
+ case LUA_TLIGHTUSERDATA:
+ *(void**) to = lua_touserdata(L, i);
+ return sizeof(void*);
+
+ case LUA_TUSERDATA:
+ p = to_cdata(L, i, &ct);
+
+ if (ct.type == INVALID_TYPE) {
+ *(void**) to = p;
+ return sizeof(void*);
+ }
+
+ lua_pop(L, 1);
+
+ if (ct.pointers || ct.type == INTPTR_TYPE) {
+ *(void**) to = p;
+ return sizeof(void*);
+
+ } else if (ct.type == INT32_TYPE) {
+ *(int32_t*) to = *(int32_t*) p;
+ return sizeof(int32_t);
+
+ } else if (ct.type == INT64_TYPE) {
+ *(int64_t*) to = *(int64_t*) p;
+ return sizeof(int64_t);
+ }
+ goto err;
+
+ case LUA_TNIL:
+ *(void**) to = NULL;
+ return sizeof(void*);
+
+ default:
+ goto err;
+ }
+
+err:
+ return type_error(L, i, "vararg", 0, NULL);
+}
+
+void unpack_varargs_stack(lua_State* L, int first, int last, char* to)
+{
+ int i;
+
+ for (i = first; i <= last; i++) {
+ to += unpack_vararg(L, i, to);
+ }
+}
+
+void unpack_varargs_stack_skip(lua_State* L, int first, int last, int ints_to_skip, int floats_to_skip, char* to)
+{
+ int i;
+
+ for (i = first; i <= last; i++) {
+ int type = lua_type(L, i);
+
+ if (type == LUA_TNUMBER && --floats_to_skip >= 0) {
+ continue;
+ } else if (type != LUA_TNUMBER && --ints_to_skip >= 0) {
+ continue;
+ }
+
+ to += unpack_vararg(L, i, to);
+ }
+}
+
+void unpack_varargs_float(lua_State* L, int first, int last, int max, char* to)
+{
+ int i;
+
+ for (i = first; i <= last && max > 0; i++) {
+ if (lua_type(L, i) == LUA_TNUMBER) {
+ unpack_vararg(L, i, to);
+ to += sizeof(double);
+ max--;
+ }
+ }
+}
+
+void unpack_varargs_int(lua_State* L, int first, int last, int max, char* to)
+{
+ int i;
+
+ for (i = first; i <= last && max > 0; i++) {
+ if (lua_type(L, i) != LUA_TNUMBER) {
+ unpack_vararg(L, i, to);
+ to += sizeof(void*);
+ max--;
+ }
+ }
+}
+
+void unpack_varargs_reg(lua_State* L, int first, int last, char* to)
+{
+ int i;
+
+ for (i = first; i <= last; i++) {
+ unpack_vararg(L, i, to);
+ to += sizeof(double);
+ }
+}
+
+/* to_enum tries to convert a value at idx to the enum type indicated by to_ct
+ * and uv to_usr. For strings this means it will do a string lookup for the
+ * enum type. It leaves the stack unchanged. Will throw an error if the type
+ * at idx can't be conerted.
+ */
+int32_t check_enum(lua_State* L, int idx, int to_usr, const struct ctype* to_ct)
+{
+ int32_t ret;
+
+ switch (lua_type(L, idx)) {
+ case LUA_TSTRING:
+ /* lookup string in to_usr to find value */
+ to_usr = lua_absindex(L, to_usr);
+ lua_pushvalue(L, idx);
+ lua_rawget(L, to_usr);
+
+ if (lua_isnil(L, -1)) {
+ goto err;
+ }
+
+ ret = (int32_t) lua_tointeger(L, -1);
+ lua_pop(L, 1);
+ return ret;
+
+ case LUA_TUSERDATA:
+ return check_int32(L, idx);
+
+ case LUA_TNIL:
+ return (int32_t) 0;
+
+ case LUA_TNUMBER:
+ return (int32_t) lua_tointeger(L, idx);
+
+ default:
+ goto err;
+ }
+
+err:
+ return type_error(L, idx, NULL, to_usr, to_ct);
+}
+
+/* to_pointer tries converts a value at idx to a pointer. It fills out ct and
+ * pushes the uv of the found type. It will throw a lua error if it can not
+ * convert the value to a pointer. */
+static void* check_pointer(lua_State* L, int idx, struct ctype* ct)
+{
+ void* p;
+ memset(ct, 0, sizeof(*ct));
+ ct->pointers = 1;
+ idx = lua_absindex(L, idx);
+
+ switch (lua_type(L, idx)) {
+ case LUA_TNIL:
+ ct->type = VOID_TYPE;
+ ct->is_null = 1;
+ lua_pushnil(L);
+ return NULL;
+
+ case LUA_TNUMBER:
+ ct->type = INTPTR_TYPE;
+ ct->is_unsigned = 1;
+ ct->pointers = 0;
+ lua_pushnil(L);
+ return (void*) (uintptr_t) lua_tonumber(L, idx);
+
+ case LUA_TLIGHTUSERDATA:
+ ct->type = VOID_TYPE;
+ lua_pushnil(L);
+ return lua_touserdata(L, idx);
+
+ case LUA_TSTRING:
+ ct->type = INT8_TYPE;
+ ct->is_unsigned = IS_CHAR_UNSIGNED;
+ ct->is_array = 1;
+ ct->base_size = 1;
+ ct->const_mask = 2;
+ lua_pushnil(L);
+ return (void*) lua_tolstring(L, idx, &ct->array_size);
+
+ case LUA_TUSERDATA:
+ p = to_cdata(L, idx, ct);
+
+ if (ct->type == INVALID_TYPE) {
+ /* some other type of user data */
+ ct->type = VOID_TYPE;
+ return lua_touserdata(L, idx);
+ } else if (ct->type == STRUCT_TYPE || ct->type == UNION_TYPE) {
+ return p;
+ } else {
+ return (void*) (intptr_t) check_intptr(L, idx, p, ct);
+ }
+ break;
+ }
+
+ type_error(L, idx, "pointer", 0, NULL);
+ return NULL;
+}
+
+static int is_void_ptr(const struct ctype* ct)
+{
+ return ct->type == VOID_TYPE
+ && ct->pointers == 1;
+}
+
+static int is_same_type(lua_State* L, int usr1, int usr2, const struct ctype* t1, const struct ctype* t2)
+{
+ if (t1->type != t2->type) {
+ return 0;
+ }
+
+#if LUA_VERSION_NUM == 501
+ if (lua_isnil(L, usr1) != lua_isnil(L, usr2)) {
+ int ret;
+ usr1 = lua_absindex(L, usr1);
+ usr2 = lua_absindex(L, usr2);
+ push_upval(L, &niluv_key);
+
+ ret = lua_rawequal(L, usr1, -1)
+ || lua_rawequal(L, usr2, -1);
+
+ lua_pop(L, 1);
+
+ if (ret) {
+ return 1;
+ }
+ }
+#endif
+
+ return lua_rawequal(L, usr1, usr2);
+}
+
+static void set_struct(lua_State* L, int idx, void* to, int to_usr, const struct ctype* tt, int check_pointers);
+
+/* to_typed_pointer converts a value at idx to a type tt with target uv to_usr
+ * checking all types. May push a temporary value so that it can create
+ * structs on the fly. */
+void* check_typed_pointer(lua_State* L, int idx, int to_usr, const struct ctype* tt)
+{
+ struct ctype ft;
+ void* p;
+
+ to_usr = lua_absindex(L, to_usr);
+ idx = lua_absindex(L, idx);
+
+ if (tt->pointers == 1 && (tt->type == STRUCT_TYPE || tt->type == UNION_TYPE) && lua_type(L, idx) == LUA_TTABLE) {
+ /* need to construct a struct of the target type */
+ struct ctype ct = *tt;
+ ct.pointers = ct.is_array = 0;
+ p = push_cdata(L, to_usr, &ct);
+ set_struct(L, idx, p, to_usr, &ct, 1);
+ return p;
+ }
+
+ p = check_pointer(L, idx, &ft);
+
+ if (tt->pointers == 1 && ft.pointers == 0 && (ft.type == STRUCT_TYPE || ft.type == UNION_TYPE)) {
+ /* auto dereference structs */
+ ft.pointers = 1;
+ ft.const_mask <<= 1;
+ }
+
+ if (is_void_ptr(tt)) {
+ /* any pointer can convert to void* */
+ goto suc;
+
+ } else if (ft.is_null) {
+ /* NULL can convert to any pointer */
+ goto suc;
+
+ } else if (!is_same_type(L, to_usr, -1, tt, &ft)) {
+ /* the base type is different */
+ goto err;
+
+ } else if (tt->pointers != ft.pointers) {
+ goto err;
+
+ } else if (ft.const_mask & ~tt->const_mask) {
+ /* for every const in from it must be in to, there are further rules
+ * for const casting (see the c++ spec), but they are hard to test
+ * quickly */
+ goto err;
+ }
+
+suc:
+ return p;
+
+err:
+ type_error(L, idx, NULL, to_usr, tt);
+ return NULL;
+}
+
+/* to_cfunction converts a value at idx with usr table at to_usr and type tt
+ * into a function. Leaves the stack unchanged. */
+static cfunction check_cfunction(lua_State* L, int idx, int to_usr, const struct ctype* tt, int check_pointers)
+{
+ void* p;
+ struct ctype ft;
+ cfunction f;
+ int top = lua_gettop(L);
+
+ idx = lua_absindex(L, idx);
+ to_usr = lua_absindex(L, to_usr);
+
+ switch (lua_type(L, idx)) {
+ case LUA_TFUNCTION:
+ /* Function cdatas are pinned and must be manually cleaned up by
+ * calling func:free(). */
+ push_upval(L, &callbacks_key);
+ f = compile_callback(L, idx, to_usr, tt);
+ lua_pushboolean(L, 1);
+ lua_rawset(L, -3);
+ lua_pop(L, 1); /* callbacks tbl */
+ return f;
+
+ case LUA_TNIL:
+ return NULL;
+
+ case LUA_TLIGHTUSERDATA:
+ if (check_pointers) {
+ goto err;
+ } else {
+ return (cfunction) lua_touserdata(L, idx);
+ }
+
+ case LUA_TUSERDATA:
+ p = to_cdata(L, idx, &ft);
+ assert(lua_gettop(L) == top + 1);
+
+ if (ft.type == INVALID_TYPE) {
+ if (check_pointers) {
+ goto err;
+ } else {
+ lua_pop(L, 1);
+ return (cfunction) lua_touserdata(L, idx);
+ }
+
+ } else if (ft.is_null) {
+ lua_pop(L, 1);
+ return NULL;
+
+ } else if (!check_pointers && (ft.pointers || ft.type == INTPTR_TYPE)) {
+ lua_pop(L, 1);
+ return (cfunction) *(void**) p;
+
+ } else if (ft.type != FUNCTION_PTR_TYPE) {
+ goto err;
+
+ } else if (!check_pointers) {
+ lua_pop(L, 1);
+ return *(cfunction*) p;
+
+ } else if (ft.calling_convention != tt->calling_convention) {
+ goto err;
+
+ } else if (!is_same_type(L, -1, to_usr, &ft, tt)) {
+ goto err;
+
+ } else {
+ lua_pop(L, 1);
+ return *(cfunction*) p;
+ }
+
+ default:
+ goto err;
+ }
+
+err:
+ type_error(L, idx, NULL, to_usr, tt);
+ return NULL;
+}
+
+/* to_type_cfunction converts a value at idx with uv at to_usr and type tt to
+ * a cfunction. Leaves the stack unchanged. */
+cfunction check_typed_cfunction(lua_State* L, int idx, int to_usr, const struct ctype* tt)
+{ return check_cfunction(L, idx, to_usr, tt, 1); }
+
+static void set_value(lua_State* L, int idx, void* to, int to_usr, const struct ctype* tt, int check_pointers);
+
+static void set_array(lua_State* L, int idx, void* to, int to_usr, const struct ctype* tt, int check_pointers)
+{
+ size_t i, sz, esz;
+ struct ctype et;
+
+ idx = lua_absindex(L, idx);
+ to_usr = lua_absindex(L, to_usr);
+
+ switch (lua_type(L, idx)) {
+ case LUA_TSTRING:
+ if (tt->pointers == 1 && tt->type == INT8_TYPE) {
+ const char* str = lua_tolstring(L, idx, &sz);
+
+ if (!tt->is_variable_array && sz >= tt->array_size) {
+ memcpy(to, str, tt->array_size);
+ } else {
+ /* include nul terminator */
+ memcpy(to, str, sz+1);
+ }
+ } else {
+ goto err;
+ }
+ break;
+
+ case LUA_TTABLE:
+ et = *tt;
+ et.pointers--;
+ et.const_mask >>= 1;
+ et.is_array = 0;
+ esz = et.pointers ? sizeof(void*) : et.base_size;
+
+ lua_rawgeti(L, idx, 2);
+
+ if (tt->is_variable_array) {
+ /* we have no idea how big the array is, so set values based off
+ * how many items were given to us */
+ lua_pop(L, 1);
+ for (i = 0; i < lua_rawlen(L, idx); i++) {
+ lua_rawgeti(L, idx, (int) i + 1);
+ set_value(L, -1, (char*) to + esz * i, to_usr, &et, check_pointers);
+ lua_pop(L, 1);
+ }
+
+ } else if (lua_isnil(L, -1)) {
+ /* there is no second element, so we set the whole array to the
+ * first element (or nil - ie 0) if there is no first element) */
+ lua_pop(L, 1);
+ lua_rawgeti(L, idx, 1);
+
+ if (lua_isnil(L, -1)) {
+ memset(to, 0, ctype_size(L, tt));
+ } else {
+ /* if its still variable we have no idea how many values to set */
+ for (i = 0; i < tt->array_size; i++) {
+ set_value(L, -1, (char*) to + esz * i, to_usr, &et, check_pointers);
+ }
+ }
+
+ lua_pop(L, 1);
+
+ } else {
+ /* there is a second element, so we set each element using the
+ * equiv index in the table initializer */
+ lua_pop(L, 1);
+ for (i = 0; i < tt->array_size; i++) {
+ lua_rawgeti(L, idx, (int) (i+1));
+
+ if (lua_isnil(L, -1)) {
+ /* we've hit the end of the values provided in the
+ * initializer, so memset the rest to zero */
+ lua_pop(L, 1);
+ memset((char*) to + esz * i, 0, (tt->array_size - i) * esz);
+ break;
+
+ } else {
+ set_value(L, -1, (char*) to + esz * i, to_usr, &et, check_pointers);
+ lua_pop(L, 1);
+ }
+ }
+ }
+ break;
+
+ default:
+ goto err;
+ }
+
+ return;
+
+err:
+ type_error(L, idx, NULL, to_usr, tt);
+}
+
+/* pops the member key from the stack, leaves the member user value on the
+ * stack. Returns the member offset. Returns -ve if the member can not be
+ * found. */
+static ptrdiff_t get_member(lua_State* L, int usr, const struct ctype* ct, struct ctype* mt)
+{
+ ptrdiff_t off;
+ lua_rawget(L, usr);
+
+ if (lua_isnil(L, -1)) {
+ lua_pop(L, 1);
+ return -1;
+ }
+
+ *mt = *(const struct ctype*) lua_touserdata(L, -1);
+ lua_getuservalue(L, -1);
+ lua_replace(L, -2);
+
+ if (mt->is_variable_array && ct->variable_size_known) {
+ /* eg char mbr[?] */
+ size_t sz = (mt->pointers > 1) ? sizeof(void*) : mt->base_size;
+ assert(ct->is_variable_struct && mt->is_array);
+ mt->array_size = ct->variable_increment / sz;
+ mt->is_variable_array = 0;
+
+ } else if (mt->is_variable_struct && ct->variable_size_known) {
+ /* eg struct {char a; char b[?]} mbr; */
+ assert(ct->is_variable_struct);
+ mt->variable_size_known = 1;
+ mt->variable_increment = ct->variable_increment;
+ }
+
+ off = mt->offset;
+ mt->offset = 0;
+ return off;
+}
+
+static void set_struct(lua_State* L, int idx, void* to, int to_usr, const struct ctype* tt, int check_pointers)
+{
+ int have_first = 0;
+ int have_other = 0;
+ struct ctype mt;
+ void* p;
+
+ to_usr = lua_absindex(L, to_usr);
+ idx = lua_absindex(L, idx);
+
+ switch (lua_type(L, idx)) {
+ case LUA_TTABLE:
+ /* match up to the members based off the table initializers key - this
+ * will match both numbered and named members in the user table
+ * we need a special case for when no entries in the initializer -
+ * zero initialize the c struct, and only one entry in the initializer
+ * - set all members to this value */
+ memset(to, 0, ctype_size(L, tt));
+ lua_pushnil(L);
+ while (lua_next(L, idx)) {
+ ptrdiff_t off;
+
+ if (!have_first && lua_tonumber(L, -2) == 1 && lua_tonumber(L, -1) != 0) {
+ have_first = 1;
+ } else if (!have_other && (lua_type(L, -2) != LUA_TNUMBER || lua_tonumber(L, -2) != 1)) {
+ have_other = 1;
+ }
+
+ lua_pushvalue(L, -2);
+ off = get_member(L, to_usr, tt, &mt);
+ assert(off >= 0);
+ set_value(L, -2, (char*) to + off, -1, &mt, check_pointers);
+
+ /* initializer value, mt usr */
+ lua_pop(L, 2);
+ }
+
+ /* if we only had a single non zero value then initialize all members to that value */
+ if (!have_other && have_first && tt->type != UNION_TYPE) {
+ size_t i, sz;
+ ptrdiff_t off;
+ lua_rawgeti(L, idx, 1);
+ sz = lua_rawlen(L, to_usr);
+
+ for (i = 2; i < sz; i++) {
+ lua_pushnumber(L, i);
+ off = get_member(L, to_usr, tt, &mt);
+ assert(off >= 0);
+ set_value(L, -2, (char*) to + off, -1, &mt, check_pointers);
+ lua_pop(L, 1); /* mt usr */
+ }
+
+ lua_pop(L, 1); /* initializer table */
+ }
+ break;
+
+ case LUA_TUSERDATA:
+ if (check_pointers) {
+ p = check_typed_pointer(L, idx, to_usr, tt);
+ } else {
+ struct ctype ct;
+ p = check_pointer(L, idx, &ct);
+ }
+ memcpy(to, p, tt->base_size);
+ lua_pop(L, 1);
+ break;
+
+ default:
+ goto err;
+ }
+
+ return;
+
+err:
+ type_error(L, idx, NULL, to_usr, tt);
+}
+
+static void set_value(lua_State* L, int idx, void* to, int to_usr, const struct ctype* tt, int check_pointers)
+{
+ int top = lua_gettop(L);
+
+ if (tt->is_array) {
+ set_array(L, idx, to, to_usr, tt, check_pointers);
+
+ } else if (tt->pointers) {
+ union {
+ uint8_t c[sizeof(void*)];
+ void* p;
+ } u;
+
+ if (lua_istable(L, idx)) {
+ luaL_error(L, "Can't set a pointer member to a struct that's about to be freed");
+ }
+
+ if (check_pointers) {
+ u.p = check_typed_pointer(L, idx, to_usr, tt);
+ } else {
+ struct ctype ct;
+ u.p = check_pointer(L, idx, &ct);
+ }
+
+#ifndef ALLOW_MISALIGNED_ACCESS
+ if ((uintptr_t) to & PTR_ALIGN_MASK) {
+ memcpy(to, u.c, sizeof(void*));
+ } else
+#endif
+ {
+ *(void**) to = u.p;
+ }
+
+ lua_pop(L, 1);
+
+ } else if (tt->is_bitfield) {
+
+ uint64_t hi_mask = UINT64_C(0) - (UINT64_C(1) << (tt->bit_offset + tt->bit_size));
+ uint64_t low_mask = (UINT64_C(1) << tt->bit_offset) - UINT64_C(1);
+ uint64_t val = check_uint64(L, idx);
+ val &= (UINT64_C(1) << tt->bit_size) - 1;
+ val <<= tt->bit_offset;
+ *(uint64_t*) to = val | (*(uint64_t*) to & (hi_mask | low_mask));
+
+ } else if (tt->type == STRUCT_TYPE || tt->type == UNION_TYPE) {
+ set_struct(L, idx, to, to_usr, tt, check_pointers);
+
+ } else {
+
+#ifndef ALLOW_MISALIGNED_ACCESS
+ union {
+ uint8_t c[8];
+ _Bool b;
+ uint64_t u64;
+ float f;
+ double d;
+ cfunction func;
+ } misalign;
+
+ void* origto = to;
+
+ if ((uintptr_t) origto & (tt->base_size - 1)) {
+ to = misalign.c;
+ }
+#endif
+
+ switch (tt->type) {
+ case BOOL_TYPE:
+ *(_Bool*) to = (cast_int64(L, idx, !check_pointers) != 0);
+ break;
+ case INT8_TYPE:
+ if (tt->is_unsigned) {
+ *(uint8_t*) to = (uint8_t) cast_uint64(L, idx, !check_pointers);
+ } else {
+ *(int8_t*) to = (int8_t) cast_int64(L, idx, !check_pointers);
+ }
+ break;
+ case INT16_TYPE:
+ if (tt->is_unsigned) {
+ *(uint16_t*) to = (uint16_t) cast_uint64(L, idx, !check_pointers);
+ } else {
+ *(int16_t*) to = (int16_t) cast_int64(L, idx, !check_pointers);
+ }
+ break;
+ case INT32_TYPE:
+ if (tt->is_unsigned) {
+ *(uint32_t*) to = (uint32_t) cast_uint64(L, idx, !check_pointers);
+ } else {
+ *(int32_t*) to = (int32_t) cast_int64(L, idx, !check_pointers);
+ }
+ break;
+ case INT64_TYPE:
+ if (tt->is_unsigned) {
+ *(uint64_t*) to = cast_uint64(L, idx, !check_pointers);
+ } else {
+ *(int64_t*) to = cast_int64(L, idx, !check_pointers);
+ }
+ break;
+ case FLOAT_TYPE:
+ *(float*) to = (float) check_double(L, idx);
+ break;
+ case DOUBLE_TYPE:
+ *(double*) to = check_double(L, idx);
+ break;
+ case COMPLEX_FLOAT_TYPE:
+ *(complex_float*) to = check_complex_float(L, idx);
+ break;
+ case COMPLEX_DOUBLE_TYPE:
+ *(complex_double*) to = check_complex_double(L, idx);
+ break;
+ case INTPTR_TYPE:
+ *(uintptr_t*) to = check_uintptr(L, idx);
+ break;
+ case ENUM_TYPE:
+ *(int32_t*) to = check_enum(L, idx, to_usr, tt);
+ break;
+ case FUNCTION_PTR_TYPE:
+ *(cfunction*) to = check_cfunction(L, idx, to_usr, tt, check_pointers);
+ break;
+ default:
+ goto err;
+ }
+
+#ifndef ALLOW_MISALIGNED_ACCESS
+ if ((uintptr_t) origto & (tt->base_size - 1)) {
+ memcpy(origto, misalign.c, tt->base_size);
+ }
+#endif
+ }
+
+ assert(lua_gettop(L) == top);
+ return;
+err:
+ type_error(L, idx, NULL, to_usr, tt);
+}
+
+static int ffi_typeof(lua_State* L)
+{
+ struct ctype ct;
+ check_ctype(L, 1, &ct);
+ push_ctype(L, -1, &ct);
+ return 1;
+}
+
+static void setmintop(lua_State* L, int idx)
+{
+ if (lua_gettop(L) < idx) {
+ lua_settop(L, idx);
+ }
+}
+
+/* warning: in the case that it finds an array size, it removes that index */
+static void get_variable_array_size(lua_State* L, int idx, struct ctype* ct)
+{
+ /* we only care about the variable buisness for the variable array
+ * directly ie ffi.new('char[?]') or the struct that contains the variable
+ * array ffi.new('struct {char v[?]}'). A pointer to the struct doesn't
+ * care about the variable size (it treats it as a zero sized array). */
+
+ if (ct->is_variable_array) {
+ assert(ct->is_array);
+ ct->array_size = (size_t) luaL_checknumber(L, idx);
+ ct->is_variable_array = 0;
+ lua_remove(L, idx);
+
+ } else if (ct->is_variable_struct && !ct->variable_size_known) {
+ assert(ct->type == STRUCT_TYPE && !ct->is_array);
+ ct->variable_increment *= (size_t) luaL_checknumber(L, idx);
+ ct->variable_size_known = 1;
+ lua_remove(L, idx);
+ }
+}
+
+static int try_set_value(lua_State* L)
+{
+ void* p = lua_touserdata(L, 2);
+ struct ctype* ct = (struct ctype*) lua_touserdata(L, 4);
+ int check_ptrs = lua_toboolean(L, 5);
+ set_value(L, 1, p, 3, ct, check_ptrs);
+ return 0;
+}
+
+static int do_new(lua_State* L, int is_cast)
+{
+ int cargs, i;
+ void* p;
+ struct ctype ct;
+ int check_ptrs = !is_cast;
+
+ check_ctype(L, 1, &ct);
+
+ /* don't push a callback when we have a c function, as cb:set needs a
+ * compiled callback from a lua function to work */
+ if (!ct.pointers && ct.type == FUNCTION_PTR_TYPE && (lua_isnil(L, 2) || lua_isfunction(L, 2))) {
+ /* Function cdatas are pinned and must be manually cleaned up by
+ * calling func:free(). */
+ compile_callback(L, 2, -1, &ct);
+ push_upval(L, &callbacks_key);
+ lua_pushvalue(L, -2);
+ lua_pushboolean(L, 1);
+ lua_rawset(L, -3);
+ lua_pop(L, 1); /* callbacks tbl */
+ return 1;
+ }
+
+ /* this removes the vararg argument if its needed, and errors if its invalid */
+ if (!is_cast) {
+ get_variable_array_size(L, 2, &ct);
+ }
+
+ p = push_cdata(L, -1, &ct);
+
+ /* if the user mt has a __gc function then call ffi.gc on this value */
+ if (push_user_mt(L, -2, &ct)) {
+ push_upval(L, &gc_key);
+ lua_pushvalue(L, -3);
+
+ /* user_mt.__gc */
+ lua_pushliteral(L, "__gc");
+ lua_rawget(L, -4);
+
+ lua_rawset(L, -3); /* gc_upval[cdata] = user_mt.__gc */
+ lua_pop(L, 2); /* user_mt and gc_upval */
+ }
+
+ /* stack is:
+ * ctype arg
+ * ctor args ... 0+
+ * ctype usr
+ * cdata
+ */
+
+ cargs = lua_gettop(L) - 3;
+
+ if (cargs == 0) {
+ return 1;
+ }
+
+ if (cargs == 1) {
+ /* try packed form first
+ * packed: ffi.new('int[3]', {1})
+ * unpacked: ffi.new('int[3]', 1)
+ */
+ lua_pushcfunction(L, &try_set_value);
+ lua_pushvalue(L, 2); /* ctor arg */
+ lua_pushlightuserdata(L, p);
+ lua_pushvalue(L, -5); /* ctype usr */
+ lua_pushlightuserdata(L, &ct);
+ lua_pushboolean(L, check_ptrs);
+
+ if (!lua_pcall(L, 5, 0, 0)) {
+ return 1;
+ }
+
+ /* remove any errors */
+ lua_settop(L, 4);
+ }
+
+ /* if we have more than 2 ctor arguments then they must be unpacked, e.g.
+ * ffi.new('int[3]', 1, 2, 3) */
+ lua_createtable(L, cargs, 0);
+ lua_replace(L, 1);
+ for (i = 1; i <= cargs; i++) {
+ lua_pushvalue(L, i + 1);
+ lua_rawseti(L, 1, i);
+ }
+ assert(lua_gettop(L) == cargs + 3);
+ set_value(L, 1, p, -2, &ct, check_ptrs);
+
+ return 1;
+}
+
+static int ffi_new(lua_State* L)
+{ return do_new(L, 0); }
+
+static int ffi_cast(lua_State* L)
+{ return do_new(L, 1); }
+
+static int ctype_new(lua_State* L)
+{ return do_new(L, 0); }
+
+static int ctype_call(lua_State* L)
+{
+ struct ctype ct;
+ int top = lua_gettop(L);
+
+ check_ctype(L, 1, &ct);
+
+ if (push_user_mt(L, -1, &ct)) {
+ lua_pushstring(L, "__new");
+ lua_rawget(L, -2);
+ if (!lua_isnil(L, -1)) {
+ lua_insert(L, 1); // function at bottom of stack under args
+ lua_pop(L, 2);
+ lua_call(L, top, 1);
+ return 1;
+ }
+ lua_pop(L, 2);
+ }
+ lua_pop(L, 1);
+
+ assert(lua_gettop(L) == top);
+ return do_new(L, 0);
+}
+
+static int ffi_sizeof(lua_State* L)
+{
+ struct ctype ct;
+ check_ctype(L, 1, &ct);
+ get_variable_array_size(L, 2, &ct);
+ lua_pushnumber(L, ctype_size(L, &ct));
+ return 1;
+}
+
+static int ffi_alignof(lua_State* L)
+{
+ struct ctype ct, mt;
+ lua_settop(L, 2);
+ check_ctype(L, 1, &ct);
+
+ /* if no member is specified then we return the alignment of the type */
+ if (lua_isnil(L, 2)) {
+ lua_pushnumber(L, ct.align_mask + 1);
+ return 1;
+ }
+
+ /* get the alignment of the member */
+ lua_pushvalue(L, 2);
+ if (get_member(L, -2, &ct, &mt) < 0) {
+ push_type_name(L, 3, &ct);
+ return luaL_error(L, "type %s has no member %s", lua_tostring(L, -1), lua_tostring(L, 2));
+ }
+
+ lua_pushnumber(L, mt.align_mask + 1);
+ return 1;
+}
+
+static int ffi_offsetof(lua_State* L)
+{
+ ptrdiff_t off;
+ struct ctype ct, mt;
+ lua_settop(L, 2);
+ check_ctype(L, 1, &ct);
+
+ lua_pushvalue(L, 2);
+ off = get_member(L, -2, &ct, &mt); /* this replaces the member key at -1 with the mbr usr value */
+ if (off < 0) {
+ push_type_name(L, 3, &ct);
+ return luaL_error(L, "type %s has no member %s", lua_tostring(L, -1), lua_tostring(L, 2));
+ }
+
+ lua_pushnumber(L, off);
+
+ if (!mt.is_bitfield) {
+ return 1;
+ }
+
+ lua_pushnumber(L, mt.bit_offset);
+ lua_pushnumber(L, mt.bit_size);
+ return 3;
+}
+
+static int ffi_istype(lua_State* L)
+{
+ struct ctype tt, ft;
+ check_ctype(L, 1, &tt);
+ to_cdata(L, 2, &ft);
+
+ if (ft.type == INVALID_TYPE) {
+ goto fail;
+ }
+
+ if (!is_same_type(L, 3, 4, &tt, &ft)) {
+ goto fail;
+ }
+
+ if (tt.pointers != ft.pointers) {
+ goto fail;
+ }
+
+ if (tt.is_array != ft.is_array) {
+ goto fail;
+ }
+
+ if (tt.is_array && tt.array_size != ft.array_size) {
+ goto fail;
+ }
+
+ if (tt.calling_convention != ft.calling_convention) {
+ goto fail;
+ }
+
+ lua_pushboolean(L, 1);
+ return 1;
+
+fail:
+ lua_pushboolean(L, 0);
+ return 1;
+}
+
+static int cdata_gc(lua_State* L)
+{
+ struct ctype ct;
+ check_cdata(L, 1, &ct);
+ lua_settop(L, 1);
+
+ /* call the gc func if there is any registered */
+ lua_pushvalue(L, 1);
+ lua_rawget(L, lua_upvalueindex(2));
+ if (!lua_isnil(L, -1)) {
+ lua_pushvalue(L, 1);
+ lua_pcall(L, 1, 0, 0);
+ }
+
+ /* unset the closure */
+ lua_pushvalue(L, 1);
+ lua_pushnil(L);
+ lua_rawset(L, lua_upvalueindex(1));
+
+ return 0;
+}
+
+static int callback_free(lua_State* L)
+{
+ cfunction* p = (cfunction*) lua_touserdata(L, 1);
+ free_code(get_jit(L), L, *p);
+ return 0;
+}
+
+static int cdata_free(lua_State* L)
+{
+ struct ctype ct;
+ cfunction* p = (cfunction*) check_cdata(L, 1, &ct);
+ lua_settop(L, 1);
+
+ /* unset the closure */
+ lua_pushvalue(L, 1);
+ lua_pushnil(L);
+ lua_rawset(L, lua_upvalueindex(1));
+
+ if (ct.is_jitted) {
+ free_code(get_jit(L), L, *p);
+ *p = NULL;
+ }
+
+ return 0;
+}
+
+static int cdata_set(lua_State* L)
+{
+ struct ctype ct;
+ cfunction* p = (cfunction*) check_cdata(L, 1, &ct);
+ luaL_checktype(L, 2, LUA_TFUNCTION);
+
+ if (!ct.is_jitted) {
+ luaL_error(L, "can't set the function for a non-lua callback");
+ }
+
+ if (*p == NULL) {
+ luaL_error(L, "can't set the function for a free'd callback");
+ }
+
+ push_func_ref(L, *p);
+ lua_pushvalue(L, 2);
+ lua_rawseti(L, -2, CALLBACK_FUNC_USR_IDX);
+
+ /* remove the closure for this callback as it embeds the function pointer
+ * value */
+ lua_pushvalue(L, 1);
+ lua_pushboolean(L, 1);
+ lua_rawset(L, lua_upvalueindex(1));
+
+ return 0;
+}
+
+static int cdata_call(lua_State* L)
+{
+ struct ctype ct;
+ int top = lua_gettop(L);
+ cfunction* p = (cfunction*) check_cdata(L, 1, &ct);
+
+ if (push_user_mt(L, -1, &ct)) {
+ lua_pushliteral(L, "__call");
+ lua_rawget(L, -2);
+
+ if (!lua_isnil(L, -1)) {
+ lua_insert(L, 1);
+ lua_pop(L, 2); /* ct_usr, user_mt */
+ lua_call(L, lua_gettop(L) - 1, LUA_MULTRET);
+ return lua_gettop(L);
+ }
+ }
+ if (ct.pointers || ct.type != FUNCTION_PTR_TYPE) {
+ return luaL_error(L, "only function callbacks are callable");
+ }
+
+ lua_pushvalue(L, 1);
+ lua_rawget(L, lua_upvalueindex(1));
+
+ if (!lua_isfunction(L, -1)) {
+ lua_pop(L, 1);
+ compile_function(L, *p, -1, &ct);
+
+ assert(lua_gettop(L) == top + 2); /* uv, closure */
+
+ /* closures[func] = closure */
+ lua_pushvalue(L, 1);
+ lua_pushvalue(L, -2);
+ lua_rawset(L, lua_upvalueindex(1));
+
+ lua_replace(L, 1);
+ } else {
+ lua_replace(L, 1);
+ }
+
+ lua_pop(L, 1); /* uv */
+ assert(lua_gettop(L) == top);
+
+ lua_call(L, lua_gettop(L) - 1, LUA_MULTRET);
+ return lua_gettop(L);
+}
+
+static int user_mt_key;
+
+static int ffi_metatype(lua_State* L)
+{
+ struct ctype ct;
+ lua_settop(L, 2);
+
+ check_ctype(L, 1, &ct);
+ if (lua_type(L, 2) != LUA_TTABLE && lua_type(L, 2) != LUA_TNIL) {
+ return luaL_argerror(L, 2, "metatable must be a table or nil");
+ }
+
+ lua_pushlightuserdata(L, &user_mt_key);
+ lua_pushvalue(L, 2);
+ lua_rawset(L, 3); /* user[user_mt_key] = mt */
+
+ /* return the passed in ctype */
+ push_ctype(L, 3, &ct);
+ return 1;
+}
+
+/* push_user_mt returns 1 if the type has a user metatable and pushes it onto
+ * the stack, otherwise it returns 0 and pushes nothing */
+int push_user_mt(lua_State* L, int ct_usr, const struct ctype* ct)
+{
+ if (ct->type != STRUCT_TYPE && ct->type != UNION_TYPE) {
+ return 0;
+ }
+
+ ct_usr = lua_absindex(L, ct_usr);
+ lua_pushlightuserdata(L, &user_mt_key);
+ lua_rawget(L, ct_usr);
+
+ if (lua_isnil(L, -1)) {
+ lua_pop(L, 1);
+ return 0;
+ }
+ return 1;
+}
+
+static int ffi_gc(lua_State* L)
+{
+ struct ctype ct;
+ lua_settop(L, 2);
+ check_cdata(L, 1, &ct);
+
+ push_upval(L, &gc_key);
+ lua_pushvalue(L, 1);
+ lua_pushvalue(L, 2);
+ lua_rawset(L, -3);
+
+ /* return the cdata back */
+ lua_settop(L, 1);
+ return 1;
+}
+
+/* lookup_cdata_index returns the offset of the found type and user value on
+ * the stack if valid. Otherwise returns -ve and doesn't touch the stack.
+ */
+static ptrdiff_t lookup_cdata_index(lua_State* L, int idx, int ct_usr, struct ctype* ct)
+{
+ struct ctype mt;
+ ptrdiff_t off;
+
+ ct_usr = lua_absindex(L, ct_usr);
+
+ switch (lua_type(L, idx)) {
+ case LUA_TNUMBER:
+ /* possibilities are array, pointer */
+
+ if (!ct->pointers || is_void_ptr(ct)) {
+ return -1;
+ }
+
+ ct->is_array = 0;
+ ct->pointers--;
+ ct->const_mask >>= 1;
+
+ lua_pushvalue(L, ct_usr);
+
+ return (ct->pointers ? sizeof(void*) : ct->base_size) * lua_tonumber(L, 2);
+
+ case LUA_TSTRING:
+ /* possibilities are struct/union, pointer to struct/union */
+
+ if ((ct->type != STRUCT_TYPE && ct->type != UNION_TYPE) || ct->is_array || ct->pointers > 1) {
+ return -1;
+ }
+
+ lua_pushvalue(L, idx);
+ off = get_member(L, ct_usr, ct, &mt);
+ if (off < 0) {
+ return -1;
+ }
+
+ *ct = mt;
+ return off;
+
+ default:
+ return -1;
+ }
+}
+
+static int cdata_newindex(lua_State* L)
+{
+ struct ctype tt;
+ char* to;
+ ptrdiff_t off;
+
+ lua_settop(L, 3);
+
+ to = (char*) check_cdata(L, 1, &tt);
+ off = lookup_cdata_index(L, 2, -1, &tt);
+
+ if (off < 0) {
+ if (!push_user_mt(L, -1, &tt)) {
+ goto err;
+ }
+
+ lua_pushliteral(L, "__newindex");
+ lua_rawget(L, -2);
+
+ if (lua_isnil(L, -1)) {
+ goto err;
+ }
+
+ lua_insert(L, 1);
+ lua_settop(L, 4);
+ lua_call(L, 3, LUA_MULTRET);
+ return lua_gettop(L);
+ }
+
+ if (tt.const_mask & 1) {
+ return luaL_error(L, "can't set const data");
+ }
+
+ set_value(L, 3, to + off, -1, &tt, 1);
+ return 0;
+
+err:
+ push_type_name(L, 4, &tt);
+ return luaL_error(L, "type %s has no member %s", lua_tostring(L, -1), lua_tostring(L, 2));
+}
+
+static int cdata_index(lua_State* L)
+{
+ void* to;
+ struct ctype ct;
+ char* data;
+ ptrdiff_t off;
+
+ lua_settop(L, 2);
+ data = (char*) check_cdata(L, 1, &ct);
+ assert(lua_gettop(L) == 3);
+
+ if (!ct.pointers) {
+ switch (ct.type) {
+ case FUNCTION_PTR_TYPE:
+ /* Callbacks use the same metatable as standard cdata values, but have set
+ * and free members. So instead of mt.__index = mt, we do the equiv here. */
+ lua_getmetatable(L, 1);
+ lua_pushvalue(L, 2);
+ lua_rawget(L, -2);
+ return 1;
+
+ /* This provides the .re and .im virtual members */
+ case COMPLEX_DOUBLE_TYPE:
+ case COMPLEX_FLOAT_TYPE:
+ if (!lua_isstring(L, 2)) {
+ luaL_error(L, "invalid member for complex number");
+
+ } else if (strcmp(lua_tostring(L, 2), "re") == 0) {
+ lua_pushnumber(L, ct.type == COMPLEX_DOUBLE_TYPE ? creal(*(complex_double*) data) : crealf(*(complex_float*) data));
+
+ } else if (strcmp(lua_tostring(L, 2), "im") == 0) {
+ lua_pushnumber(L, ct.type == COMPLEX_DOUBLE_TYPE ? cimag(*(complex_double*) data) : cimagf(*(complex_float*) data));
+
+ } else {
+ luaL_error(L, "invalid member for complex number");
+ }
+ return 1;
+ }
+ }
+
+ off = lookup_cdata_index(L, 2, -1, &ct);
+
+ if (off < 0) {
+ assert(lua_gettop(L) == 3);
+ if (!push_user_mt(L, -1, &ct)) {
+ goto err;
+ }
+
+ lua_pushliteral(L, "__index");
+ lua_rawget(L, -2);
+
+ if (lua_isnil(L, -1)) {
+ goto err;
+ }
+
+ if (lua_istable(L, -1)) {
+ lua_pushvalue(L, 2);
+ lua_gettable(L, -2);
+ return 1;
+ }
+
+ lua_insert(L, 1);
+ lua_settop(L, 3);
+ lua_call(L, 2, LUA_MULTRET);
+ return lua_gettop(L);
+
+err:
+ push_type_name(L, 3, &ct);
+ return luaL_error(L, "type %s has no member %s", lua_tostring(L, -1), lua_tostring(L, 2));
+ }
+
+ assert(lua_gettop(L) == 4); /* ct, key, ct_usr, mbr_usr */
+ data += off;
+
+ if (ct.is_array) {
+ /* push a reference to the array */
+ ct.is_reference = 1;
+ to = push_cdata(L, -1, &ct);
+ *(void**) to = data;
+ return 1;
+
+ } else if (ct.is_bitfield) {
+
+ if (ct.type == INT64_TYPE) {
+ struct ctype rt;
+ uint64_t val = *(uint64_t*) data;
+ val >>= ct.bit_offset;
+ val &= (UINT64_C(1) << ct.bit_size) - 1;
+
+ memset(&rt, 0, sizeof(rt));
+ rt.base_size = 8;
+ rt.type = INT64_TYPE;
+ rt.is_unsigned = 1;
+ rt.is_defined = 1;
+
+ to = push_cdata(L, 0, &rt);
+ *(uint64_t*) to = val;
+
+ return 1;
+
+ } else if (ct.type == BOOL_TYPE) {
+ uint64_t val = *(uint64_t*) data;
+ lua_pushboolean(L, (int) (val & (UINT64_C(1) << ct.bit_offset)));
+ return 1;
+
+ } else {
+ uint64_t val = *(uint64_t*) data;
+ val >>= ct.bit_offset;
+ val &= (UINT64_C(1) << ct.bit_size) - 1;
+ lua_pushnumber(L, val);
+ return 1;
+ }
+
+ } else if (ct.pointers) {
+#ifndef ALLOW_MISALIGNED_ACCESS
+ union {
+ uint8_t c[8];
+ void* p;
+ } misalignbuf;
+
+ if ((uintptr_t) data & PTR_ALIGN_MASK) {
+ memcpy(misalignbuf.c, data, sizeof(void*));
+ data = misalignbuf.c;
+ }
+#endif
+ to = push_cdata(L, -1, &ct);
+ *(void**) to = *(void**) data;
+ return 1;
+
+ } else if (ct.type == STRUCT_TYPE || ct.type == UNION_TYPE) {
+ /* push a reference to the member */
+ ct.is_reference = 1;
+ to = push_cdata(L, -1, &ct);
+ *(void**) to = data;
+ return 1;
+
+ } else if (ct.type == FUNCTION_PTR_TYPE) {
+ cfunction* pf = (cfunction*) push_cdata(L, -1, &ct);
+ *pf = *(cfunction*) data;
+ return 1;
+
+ } else {
+#ifndef ALLOW_MISALIGNED_ACCESS
+ union {
+ uint8_t c[8];
+ double d;
+ float f;
+ uint64_t u64;
+ } misalignbuf;
+
+ assert(ct.base_size <= 8);
+
+ if ((uintptr_t) data & (ct.base_size - 1)) {
+ memcpy(misalignbuf.c, data, ct.base_size);
+ data = misalignbuf.c;
+ }
+#endif
+
+ switch (ct.type) {
+ case BOOL_TYPE:
+ lua_pushboolean(L, *(_Bool*) data);
+ break;
+ case INT8_TYPE:
+ lua_pushnumber(L, ct.is_unsigned ? (lua_Number) *(uint8_t*) data : (lua_Number) *(int8_t*) data);
+ break;
+ case INT16_TYPE:
+ lua_pushnumber(L, ct.is_unsigned ? (lua_Number) *(uint16_t*) data : (lua_Number) *(int16_t*) data);
+ break;
+ case ENUM_TYPE:
+ case INT32_TYPE:
+ lua_pushnumber(L, ct.is_unsigned ? (lua_Number) *(uint32_t*) data : (lua_Number) *(int32_t*) data);
+ break;
+ case INT64_TYPE:
+ to = push_cdata(L, -1, &ct);
+ *(int64_t*) to = *(int64_t*) data;
+ break;
+ case INTPTR_TYPE:
+ to = push_cdata(L, -1, &ct);
+ *(intptr_t*) to = *(intptr_t*) data;
+ break;
+ case FLOAT_TYPE:
+ lua_pushnumber(L, *(float*) data);
+ break;
+ case DOUBLE_TYPE:
+ lua_pushnumber(L, *(double*) data);
+ break;
+ default:
+ luaL_error(L, "internal error: invalid member type");
+ }
+
+ return 1;
+ }
+}
+
+static complex_double check_complex(lua_State* L, int idx, void* p, struct ctype* ct)
+{
+ if (ct->type == INVALID_TYPE) {
+ double d = luaL_checknumber(L, idx);
+#ifdef HAVE_COMPLEX
+ return d;
+#else
+ complex_double c;
+ c.real = d;
+ c.imag = 0;
+ return c;
+#endif
+ } else if (ct->type == COMPLEX_DOUBLE_TYPE) {
+ return *(complex_double*) p;
+ } else if (ct->type == COMPLEX_FLOAT_TYPE) {
+ complex_float* f = (complex_float*) p;
+#ifdef HAVE_COMPLEX
+ return *f;
+#else
+ complex_double d;
+ d.real = f->real;
+ d.imag = f->imag;
+ return d;
+#endif
+ } else {
+ complex_double dummy;
+ type_error(L, idx, "complex", 0, NULL);
+ memset(&dummy, 0, sizeof(dummy));
+ return dummy;
+ }
+}
+
+static int rank(const struct ctype* ct)
+{
+ if (ct->pointers) {
+ return 5;
+ }
+
+ switch (ct->type) {
+ case COMPLEX_DOUBLE_TYPE:
+ return 7;
+ case COMPLEX_FLOAT_TYPE:
+ return 6;
+ case INTPTR_TYPE:
+ return sizeof(intptr_t) >= sizeof(int64_t) ? 4 : 1;
+ case INT64_TYPE:
+ return ct->is_unsigned ? 3 : 2;
+ case INT32_TYPE:
+ case INT16_TYPE:
+ case INT8_TYPE:
+ return 2;
+ default:
+ return 0;
+ }
+}
+
+static void push_complex(lua_State* L, complex_double res, int ct_usr, const struct ctype* ct)
+{
+ if (ct->type == COMPLEX_DOUBLE_TYPE) {
+ complex_double* p = (complex_double*) push_cdata(L, ct_usr, ct);
+ *p = res;
+ } else {
+ complex_float* p = (complex_float*) push_cdata(L, ct_usr, ct);
+#ifdef HAVE_COMPLEX
+ *p = (complex float) res;
+#else
+ p->real = (float) res.real;
+ p->imag = (float) res.imag;
+#endif
+ }
+}
+
+static void push_number(lua_State* L, int64_t val, int ct_usr, const struct ctype* ct)
+{
+ if ((ct->pointers || ct->type == INTPTR_TYPE) && sizeof(intptr_t) != sizeof(int64_t)) {
+ intptr_t* p = (intptr_t*) push_cdata(L, ct_usr, ct);
+ *p = val;
+ } else {
+ int64_t* p = (int64_t*) push_cdata(L, ct_usr, ct);
+ *p = val;
+ }
+}
+
+static int call_user_op(lua_State* L, const char* opfield, int idx, int ct_usr, const struct ctype* ct)
+{
+ idx = lua_absindex(L, idx);
+
+ if (push_user_mt(L, ct_usr, ct)) {
+ lua_pushstring(L, opfield);
+ lua_rawget(L, -2);
+ if (!lua_isnil(L, -1)) {
+ int top = lua_gettop(L);
+ lua_pushvalue(L, idx);
+ lua_call(L, 1, LUA_MULTRET);
+ return lua_gettop(L) - top + 1;
+ }
+ lua_pop(L, 2);
+ }
+ return -1;
+}
+
+static int cdata_unm(lua_State* L)
+{
+ struct ctype ct;
+ void* p;
+ int64_t val;
+ int ret;
+
+ lua_settop(L, 1);
+ p = to_cdata(L, 1, &ct);
+
+ ret = call_user_op(L, "__unm", 1, 2, &ct);
+ if (ret >= 0) {
+ return ret;
+ }
+
+ val = check_intptr(L, 1, p, &ct);
+
+ if (ct.pointers) {
+ luaL_error(L, "can't negate a pointer value");
+ } else {
+ memset(&ct, 0, sizeof(ct));
+ ct.type = INT64_TYPE;
+ ct.base_size = 8;
+ ct.is_defined = 1;
+ push_number(L, -val, 0, &ct);
+ }
+
+ return 1;
+}
+
+/* returns -ve if no binop was called otherwise returns the number of return
+ * arguments */
+static int call_user_binop(lua_State* L, const char* opfield, int lidx, int lusr, const struct ctype* lt, int ridx, int rusr, const struct ctype* rt)
+{
+ lidx = lua_absindex(L, lidx);
+ ridx = lua_absindex(L, ridx);
+
+ if (push_user_mt(L, lusr, lt)) {
+ lua_pushstring(L, opfield);
+ lua_rawget(L, -2);
+
+ if (!lua_isnil(L, -1)) {
+ int top = lua_gettop(L);
+ lua_pushvalue(L, lidx);
+ lua_pushvalue(L, ridx);
+ lua_call(L, 2, LUA_MULTRET);
+ return lua_gettop(L) - top + 1;
+ }
+
+ lua_pop(L, 2); /* user_mt and user_mt.op */
+ }
+
+ if (push_user_mt(L, rusr, rt)) {
+ lua_pushstring(L, opfield);
+ lua_rawget(L, -2);
+
+ if (!lua_isnil(L, -1)) {
+ int top = lua_gettop(L);
+ lua_pushvalue(L, lidx);
+ lua_pushvalue(L, ridx);
+ lua_call(L, 2, LUA_MULTRET);
+ return lua_gettop(L) - top + 1;
+ }
+
+ lua_pop(L, 2); /* user_mt and user_mt.op */
+ }
+
+ return -1;
+}
+
+static int cdata_concat(lua_State* L)
+{
+ struct ctype lt, rt;
+ int ret;
+
+ lua_settop(L, 2);
+ to_cdata(L, 1, <);
+ to_cdata(L, 2, &rt);
+
+ ret = call_user_binop(L, "__concat", 1, 3, <, 2, 4, &rt);
+ if (ret >= 0) {
+ return ret;
+ }
+
+ return luaL_error(L, "NYI");
+}
+
+static int cdata_len(lua_State* L)
+{
+ struct ctype ct;
+ int ret;
+
+ lua_settop(L, 1);
+ to_cdata(L, 1, &ct);
+
+ ret = call_user_op(L, "__len", 1, 2, &ct);
+ if (ret >= 0) {
+ return ret;
+ }
+
+ push_type_name(L, 2, &ct);
+ return luaL_error(L, "type %s does not implement the __len metamethod", lua_tostring(L, -1));
+}
+
+static int cdata_pairs(lua_State* L)
+{
+ struct ctype ct;
+ int ret;
+
+ lua_settop(L, 1);
+ to_cdata(L, 1, &ct);
+
+ ret = call_user_op(L, "__pairs", 1, 2, &ct);
+ if (ret >= 0) {
+ return ret;
+ }
+
+ push_type_name(L, 2, &ct);
+ return luaL_error(L, "type %s does not implement the __pairs metamethod", lua_tostring(L, -1));
+}
+
+static int cdata_ipairs(lua_State* L)
+{
+ struct ctype ct;
+ int ret;
+
+ lua_settop(L, 1);
+ to_cdata(L, 1, &ct);
+
+ ret = call_user_op(L, "__ipairs", 1, 2, &ct);
+ if (ret >= 0) {
+ return ret;
+ }
+
+ push_type_name(L, 2, &ct);
+ return luaL_error(L, "type %s does not implement the __ipairs metamethod", lua_tostring(L, -1));
+}
+
+static int cdata_add(lua_State* L)
+{
+ struct ctype lt, rt, ct;
+ void *lp, *rp;
+ int ct_usr;
+ int ret;
+
+ lua_settop(L, 2);
+
+ lp = to_cdata(L, 1, <);
+ rp = to_cdata(L, 2, &rt);
+ assert(lua_gettop(L) == 4);
+
+ ret = call_user_binop(L, "__add", 1, 3, <, 2, 4, &rt);
+ if (ret >= 0) {
+ return ret;
+ }
+ assert(lua_gettop(L) == 4);
+
+ ct_usr = rank(<) > rank(&rt) ? 3 : 4;
+ ct = rank(<) > rank(&rt) ? lt : rt;
+
+ if (IS_COMPLEX(ct.type)) {
+ complex_double left, right, res;
+
+ left = check_complex(L, 1, lp, <);
+ right = check_complex(L, 2, rp, &rt);
+ assert(lua_gettop(L) == 4);
+
+#ifdef HAVE_COMPLEX
+ res = left + right;
+#else
+ res.real = left.real + right.real;
+ res.imag = left.imag + right.imag;
+#endif
+
+ push_complex(L, res, ct_usr, &ct);
+ return 1;
+
+ } else {
+ int64_t left = check_intptr(L, 1, lp, <);
+ int64_t right = check_intptr(L, 2, rp, &rt);
+ assert(lua_gettop(L) == 4);
+
+ /* note due to 2s complement it doesn't matter if we do the addition as int or uint,
+ * but the result needs to be uint64_t if either of the sources are */
+
+ if (lt.pointers && rt.pointers) {
+ luaL_error(L, "can't add two pointers");
+
+ } else if (lt.pointers) {
+ int64_t res = left + (lt.pointers > 1 ? sizeof(void*) : lt.base_size) * right;
+ lt.is_array = 0;
+ push_number(L, res, 3, <);
+
+ } else if (rt.pointers) {
+ int64_t res = right + (rt.pointers > 1 ? sizeof(void*) : rt.base_size) * left;
+ rt.is_array = 0;
+ push_number(L, res, 4, &rt);
+
+ } else {
+ push_number(L, left + right, ct_usr, &ct);
+ }
+
+ return 1;
+ }
+}
+
+static int cdata_sub(lua_State* L)
+{
+ struct ctype lt, rt, ct;
+ void *lp, *rp;
+ int ct_usr;
+ int ret;
+
+ lua_settop(L, 2);
+
+ lp = to_cdata(L, 1, <);
+ rp = to_cdata(L, 2, &rt);
+
+ ret = call_user_binop(L, "__sub", 1, 3, <, 2, 4, &rt);
+ if (ret >= 0) {
+ return ret;
+ }
+
+ ct_usr = rank(<) > rank(&rt) ? 3 : 4;
+ ct = rank(<) > rank(&rt) ? lt : rt;
+
+ if (IS_COMPLEX(ct.type)) {
+ complex_double left, right, res;
+
+ left = check_complex(L, 1, lp, <);
+ right = check_complex(L, 2, rp, &rt);
+
+#ifdef HAVE_COMPLEX
+ res = left - right;
+#else
+ res.real = left.real - right.real;
+ res.imag = left.imag - right.imag;
+#endif
+
+ push_complex(L, res, ct_usr, &ct);
+ return 1;
+
+ } else {
+ int64_t left = check_intptr(L, 1, lp, <);
+ int64_t right = check_intptr(L, 2, rp, &rt);
+
+ if (rt.pointers) {
+ luaL_error(L, "NYI: can't subtract a pointer value");
+
+ } else if (lt.pointers) {
+ int64_t res = left - (lt.pointers > 1 ? sizeof(void*) : lt.base_size) * right;
+ lt.is_array = 0;
+ push_number(L, res, 3, <);
+
+ } else {
+ int64_t res = left - right;
+ push_number(L, res, ct_usr, &ct);
+ }
+
+ return 1;
+ }
+}
+
+/* TODO fix for unsigned */
+#define NUMBER_ONLY_BINOP(OPSTR, DO_NORMAL, DO_COMPLEX) \
+ struct ctype lt, rt, ct; \
+ void *lp, *rp; \
+ int ct_usr; \
+ int ret; \
+ \
+ lua_settop(L, 2); \
+ \
+ lp = to_cdata(L, 1, <); \
+ rp = to_cdata(L, 2, &rt); \
+ \
+ ret = call_user_binop(L, OPSTR, 1, 3, <, 2, 4, &rt); \
+ if (ret >= 0) { \
+ return ret; \
+ } \
+ \
+ ct_usr = rank(<) > rank(&rt) ? 3 : 4; \
+ ct = rank(<) > rank(&rt) ? lt : rt; \
+ \
+ if (IS_COMPLEX(ct.type)) { \
+ complex_double res; \
+ complex_double left = check_complex(L, 1, lp, <); \
+ complex_double right = check_complex(L, 2, rp, &rt); \
+ \
+ DO_COMPLEX(left, right, res); \
+ push_complex(L, res, ct_usr, &ct); \
+ \
+ } else if (lt.pointers || rt.pointers) { \
+ luaL_error(L, "can't operate on a pointer value"); \
+ \
+ } else { \
+ int64_t res; \
+ int64_t left = check_intptr(L, 1, lp, <); \
+ int64_t right = check_intptr(L, 2, rp, &rt); \
+ \
+ DO_NORMAL(left, right, res); \
+ push_number(L, res, ct_usr, &ct); \
+ } \
+ \
+ return 1
+
+#define MUL(l,r,s) s = l * r
+#define DIV(l,r,s) s = l / r
+#define MOD(l,r,s) s = l % r
+#define POW(l,r,s) s = pow(l, r)
+
+#ifdef HAVE_COMPLEX
+#define MULC(l,r,s) s = l * r
+#define DIVC(l,r,s) s = l / r
+#define MODC(l,r,s) (void) l, (void) r, memset(&s, 0, sizeof(s)), luaL_error(L, "NYI: complex mod")
+#define POWC(l,r,s) s = cpow(l, r)
+#else
+#define MULC(l,r,s) s.real = l.real * r.real - l.imag * r.imag, s.imag = l.real * r.imag + l.imag * r.real
+#define DIVC(l,r,s) s.real = (l.real * r.real + l.imag * r.imag) / (r.real * r.real + r.imag * r.imag), \
+ s.imag = (l.imag * r.real - l.real * r.imag) / (r.real * r.real + r.imag * r.imag)
+#define MODC(l,r,s) (void) l, (void) r, memset(&s, 0, sizeof(s)), luaL_error(L, "NYI: complex mod")
+#define POWC(l,r,s) (void) l, (void) r, memset(&s, 0, sizeof(s)), luaL_error(L, "NYI: complex pow")
+#endif
+
+static int cdata_mul(lua_State* L)
+{ NUMBER_ONLY_BINOP("__mul", MUL, MULC); }
+
+static int cdata_div(lua_State* L)
+{ NUMBER_ONLY_BINOP("__div", DIV, DIVC); }
+
+static int cdata_mod(lua_State* L)
+{ NUMBER_ONLY_BINOP("__mod", MOD, MODC); }
+
+static int cdata_pow(lua_State* L)
+{ NUMBER_ONLY_BINOP("__pow", POW, POWC); }
+
+#define COMPARE_BINOP(OPSTR, OP, OPC) \
+ struct ctype lt, rt; \
+ void *lp, *rp; \
+ int ret, res; \
+ \
+ lua_settop(L, 2); \
+ \
+ lp = to_cdata(L, 1, <); \
+ rp = to_cdata(L, 2, &rt); \
+ \
+ ret = call_user_binop(L, OPSTR, 1, 3, <, 2, 4, &rt); \
+ if (ret >= 0) { \
+ return ret; \
+ } \
+ \
+ if (IS_COMPLEX(lt.type) || IS_COMPLEX(rt.type)) { \
+ complex_double left = check_complex(L, 1, lp, <); \
+ complex_double right = check_complex(L, 2, rp, &rt); \
+ \
+ res = OPC(left, right); \
+ \
+ lua_pushboolean(L, res); \
+ \
+ } else { \
+ int64_t left = check_intptr(L, 1, lp, <); \
+ int64_t right = check_intptr(L, 2, rp, &rt); \
+ \
+ if (lt.pointers && rt.pointers) { \
+ if (is_void_ptr(<) || is_void_ptr(&rt) || is_same_type(L, 3, 4, <, &rt)) { \
+ res = OP((uint64_t) left, (uint64_t) right); \
+ } else { \
+ goto err; \
+ } \
+ \
+ } else if (lt.is_null && rt.type == FUNCTION_PTR_TYPE) { \
+ res = OP((uint64_t) left, (uint64_t) right); \
+ \
+ } else if (rt.is_null && lt.type == FUNCTION_PTR_TYPE) { \
+ res = OP((uint64_t) left, (uint64_t) right); \
+ \
+ } else if (lt.pointers && rt.type == INTPTR_TYPE && rt.is_unsigned) {\
+ res = OP((uint64_t) left, (uint64_t) right); \
+ \
+ } else if (rt.pointers && lt.type == INTPTR_TYPE && lt.is_unsigned) {\
+ res = OP((uint64_t) left, (uint64_t) right); \
+ \
+ } else if (rt.pointers || lt.pointers) { \
+ goto err; \
+ \
+ } else if (lt.is_unsigned && rt.is_unsigned) { \
+ res = OP((uint64_t) left, (uint64_t) right); \
+ \
+ } else if (lt.is_unsigned) { \
+ res = OP((int64_t) (uint64_t) left, right); \
+ \
+ } else if (rt.is_unsigned) { \
+ res = OP(left, (int64_t) (uint64_t) right); \
+ \
+ } else { \
+ res = OP(left, right); \
+ } \
+ \
+ lua_pushboolean(L, res); \
+ } \
+ return 1
+
+#define EQ(l, r) (l) == (r)
+#define LT(l, r) (l) < (r)
+#define LE(l, r) (l) <= (r)
+
+#ifdef HAVE_COMPLEX
+#define EQC(l, r) (l) == (r)
+#else
+#define EQC(l, r) (l).real == (r).real && (l).imag == (r).imag
+#endif
+
+#define LEC(l, r) EQC(l, r), luaL_error(L, "complex numbers are non-orderable")
+#define LTC(l, r) EQC(l, r), luaL_error(L, "complex numbers are non-orderable")
+
+static int cdata_eq(lua_State* L)
+{
+ COMPARE_BINOP("__eq", EQ, EQC);
+err:
+ lua_pushboolean(L, 0);
+ return 1;
+}
+
+static int cdata_lt(lua_State* L)
+{
+ COMPARE_BINOP("__lt", LT, LTC);
+err:
+ lua_getuservalue(L, 1);
+ lua_getuservalue(L, 2);
+ push_type_name(L, -2, <);
+ push_type_name(L, -2, <);
+ return luaL_error(L, "trying to compare incompatible types %s and %s", lua_tostring(L, -2), lua_tostring(L, -1));
+}
+
+static int cdata_le(lua_State* L)
+{
+ COMPARE_BINOP("__le", LE, LEC);
+err:
+ lua_getuservalue(L, 1);
+ lua_getuservalue(L, 2);
+ push_type_name(L, -2, <);
+ push_type_name(L, -2, <);
+ return luaL_error(L, "trying to compare incompatible types %s and %s", lua_tostring(L, -2), lua_tostring(L, -1));
+}
+
+static const char* etype_tostring(int type)
+{
+ switch (type) {
+ case VOID_TYPE: return "void";
+ case DOUBLE_TYPE: return "double";
+ case FLOAT_TYPE: return "float";
+ case COMPLEX_DOUBLE_TYPE: return "complex double";
+ case COMPLEX_FLOAT_TYPE: return "complex float";
+ case BOOL_TYPE: return "bool";
+ case INT8_TYPE: return "int8";
+ case INT16_TYPE: return "int16";
+ case INT32_TYPE: return "int32";
+ case INT64_TYPE: return "int64";
+ case INTPTR_TYPE: return "intptr";
+ case ENUM_TYPE: return "enum";
+ case UNION_TYPE: return "union";
+ case STRUCT_TYPE: return "struct";
+ case FUNCTION_PTR_TYPE: return "function ptr";
+ case FUNCTION_TYPE: return "function";
+ default: return "invalid";
+ }
+}
+
+static void print_type(lua_State* L, const struct ctype* ct)
+{
+ lua_pushfstring(L, " sz %d %d %d align %d ptr %d %d %d type %s%s %d %d %d name %d call %d %d var %d %d %d bit %d %d %d %d jit %d",
+ /* sz */
+ ct->base_size,
+ ct->array_size,
+ ct->offset,
+ /* align */
+ ct->align_mask,
+ /* ptr */
+ ct->is_array,
+ ct->pointers,
+ ct->const_mask,
+ /* type */
+ ct->is_unsigned ? "u" : "",
+ etype_tostring(ct->type),
+ ct->is_reference,
+ ct->is_defined,
+ ct->is_null,
+ /* name */
+ ct->has_member_name,
+ /* call */
+ ct->calling_convention,
+ ct->has_var_arg,
+ /* var */
+ ct->is_variable_array,
+ ct->is_variable_struct,
+ ct->variable_size_known,
+ /* bit */
+ ct->is_bitfield,
+ ct->has_bitfield,
+ ct->bit_offset,
+ ct->bit_size,
+ /* jit */
+ ct->is_jitted);
+}
+
+static int ctype_tostring(lua_State* L)
+{
+ struct ctype ct;
+ assert(lua_type(L, 1) == LUA_TUSERDATA);
+ lua_settop(L, 1);
+ check_ctype(L, 1, &ct);
+ assert(lua_gettop(L) == 2);
+ push_type_name(L, -1, &ct);
+ lua_pushfstring(L, "ctype<%s> %p", lua_tostring(L, -1), lua_topointer(L, 1));
+
+ if (DEBUG_TOSTRING) {
+ print_type(L, &ct);
+ lua_concat(L, 2);
+ }
+
+ return 1;
+}
+
+static int cdata_tostring(lua_State* L)
+{
+ struct ctype ct;
+ char buf[64];
+ void* p;
+ int ret;
+
+ lua_settop(L, 1);
+ p = to_cdata(L, 1, &ct);
+
+ ret = call_user_op(L, "__tostring", 1, 2, &ct);
+ if (ret >= 0) {
+ return ret;
+ }
+
+ if (ct.pointers > 0 || ct.type == STRUCT_TYPE || ct.type == UNION_TYPE) {
+ push_type_name(L, -1, &ct);
+ lua_pushfstring(L, "cdata<%s>: %p", lua_tostring(L, -1), p);
+
+ if (DEBUG_TOSTRING) {
+ print_type(L, &ct);
+ lua_concat(L, 2);
+ }
+
+ return 1;
+ }
+
+ switch (ct.type) {
+ case COMPLEX_DOUBLE_TYPE:
+ {
+ complex_double c = *(complex_double*) p;
+ if (cimag(c) != 0) {
+ lua_pushfstring(L, "%f+%fi", creal(c), cimag(c));
+ } else {
+ lua_pushfstring(L, "%f", creal(c));
+ }
+ }
+ return 1;
+
+ case COMPLEX_FLOAT_TYPE:
+ {
+ complex_float c = *(complex_float*) p;
+ if (cimagf(c) != 0) {
+ lua_pushfstring(L, "%f+%fi", crealf(c), cimagf(c));
+ } else {
+ lua_pushfstring(L, "%f", crealf(c));
+ }
+ }
+ return 1;
+
+ case FUNCTION_PTR_TYPE:
+ p = *(void**) p;
+ push_type_name(L, -1, &ct);
+ lua_pushfstring(L, "cdata<%s>: %p", lua_tostring(L, -1), *(void**) p);
+ return 1;
+
+ case INTPTR_TYPE:
+ lua_pushfstring(L, "%p", *(uintptr_t*) p);
+ return 1;
+
+ case INT64_TYPE:
+ sprintf(buf, ct.is_unsigned ? "%"PRIu64 : "%"PRId64, *(uint64_t*) p);
+ lua_pushstring(L, buf);
+ return 1;
+
+ default:
+ sprintf(buf, ct.is_unsigned ? "%"PRId64 : "%"PRId64, (int64_t) check_intptr(L, 1, p, &ct));
+ lua_pushstring(L, buf);
+ return 1;
+ }
+}
+
+static int ffi_errno(lua_State* L)
+{
+ struct jit* jit = get_jit(L);
+
+ if (!lua_isnoneornil(L, 1)) {
+ lua_pushnumber(L, jit->last_errno);
+ jit->last_errno = luaL_checknumber(L, 1);
+ } else {
+ lua_pushnumber(L, jit->last_errno);
+ }
+
+ return 1;
+}
+
+static int ffi_number(lua_State* L)
+{
+ struct ctype ct;
+ void* data = to_cdata(L, 1, &ct);
+
+ if (ct.type != INVALID_TYPE) {
+ lua_pushnumber(L, check_intptr(L, 1, data, &ct));
+ return 1;
+ } else {
+ /* call the old _G.tonumber, we use an upvalue as _G.tonumber is set
+ * to this function */
+ lua_pushvalue(L, lua_upvalueindex(1));
+ lua_insert(L, 1);
+ lua_call(L, lua_gettop(L)-1, LUA_MULTRET);
+ return lua_gettop(L);
+ }
+}
+
+static int ffi_string(lua_State* L)
+{
+ struct ctype ct;
+ char* data;
+ lua_settop(L, 2);
+
+ data = (char*) check_cdata(L, 1, &ct);
+
+ if (is_void_ptr(&ct)) {
+ lua_pushlstring(L, data, (size_t) luaL_checknumber(L, 2));
+ return 1;
+
+ } else if (ct.type == INT8_TYPE && ct.pointers == 1) {
+ size_t sz;
+
+ if (!lua_isnil(L, 2)) {
+ sz = (size_t) luaL_checknumber(L, 2);
+
+ } else if (ct.is_array && !ct.is_variable_array) {
+ char* nul = memchr(data, '\0', ct.array_size);
+ sz = nul ? nul - data : ct.array_size;
+
+ } else {
+ sz = strlen(data);
+ }
+
+ lua_pushlstring(L, data, sz);
+ return 1;
+ }
+
+ return luaL_error(L, "unable to convert cdata to string");
+}
+
+static int ffi_copy(lua_State* L)
+{
+ struct ctype ft, tt;
+ char *to, *from;
+
+ setmintop(L, 3);
+ to = (char*) check_pointer(L, 1, &tt);
+ from = (char*) check_pointer(L, 2, &ft);
+
+ if (!lua_isnoneornil(L, 3)) {
+ memcpy(to, from, (size_t) luaL_checknumber(L, 3));
+
+ } else if (ft.type == INT8_TYPE && ft.pointers == 1) {
+ size_t sz = ft.is_array ? ft.array_size : strlen(from);
+ memcpy(to, from, sz);
+ to[sz] = '\0';
+ }
+
+ return 0;
+}
+
+static int ffi_fill(lua_State* L)
+{
+ struct ctype ct;
+ void* to;
+ size_t sz;
+ int val = 0;
+
+ setmintop(L, 3);
+ to = check_pointer(L, 1, &ct);
+ sz = (size_t) luaL_checknumber(L, 2);
+
+ if (!lua_isnoneornil(L, 3)) {
+ val = (int) luaL_checkinteger(L, 3);
+ }
+
+ memset(to, val, sz);
+ return 0;
+}
+
+static int ffi_abi(lua_State* L)
+{
+ luaL_checkstring(L, 1);
+ push_upval(L, &abi_key);
+ lua_pushvalue(L, 1);
+ lua_rawget(L, -2);
+ lua_pushboolean(L, lua_toboolean(L, -1));
+ return 1;
+}
+
+static int ffi_load(lua_State* L)
+{
+ const char* libname = luaL_checkstring(L, 1);
+ void** lib = (void**) lua_newuserdata(L, sizeof(void*));
+
+ *lib = LoadLibraryA(libname);
+
+#ifdef LIB_FORMAT_1
+ if (!*lib) {
+ libname = lua_pushfstring(L, LIB_FORMAT_1, lua_tostring(L, 1));
+ *lib = LoadLibraryA(libname);
+ lua_pop(L, 1);
+ }
+#endif
+
+#ifdef LIB_FORMAT_2
+ if (!*lib) {
+ libname = lua_pushfstring(L, LIB_FORMAT_2, lua_tostring(L, 1));
+ *lib = LoadLibraryA(libname);
+ lua_pop(L, 1);
+ }
+#endif
+
+ if (!*lib) {
+ return luaL_error(L, "could not load library %s", lua_tostring(L, 1));
+ }
+
+ lua_newtable(L);
+ lua_setuservalue(L, -2);
+
+ push_upval(L, &cmodule_mt_key);
+ lua_setmetatable(L, -2);
+ return 1;
+}
+
+static void* find_symbol(lua_State* L, int modidx, const char* asmname)
+{
+ size_t i;
+ void** libs;
+ size_t num;
+ void* sym = NULL;
+
+ libs = (void**) lua_touserdata(L, modidx);
+ num = lua_rawlen(L, modidx) / sizeof(void*);
+
+ for (i = 0; i < num && sym == NULL; i++) {
+ if (libs[i]) {
+ sym = GetProcAddressA(libs[i], asmname);
+ }
+ }
+
+ return sym;
+}
+
+/* pushes the user table */
+static void* lookup_global(lua_State* L, int modidx, int nameidx, const char** pname, struct ctype* ct)
+{
+ int top = lua_gettop(L);
+ void* sym;
+
+ modidx = lua_absindex(L, modidx);
+ nameidx = lua_absindex(L, nameidx);
+
+ *pname = luaL_checkstring(L, nameidx);
+
+ /* get the ctype */
+ push_upval(L, &functions_key);
+ lua_pushvalue(L, nameidx);
+ lua_rawget(L, -2);
+ if (lua_isnil(L, -1)) {
+ luaL_error(L, "missing declaration for function/global %s", *pname);
+ return NULL;
+ }
+
+ /* leave just the ct_usr on the stack */
+ *ct = *(const struct ctype*) lua_touserdata(L, -1);
+ lua_getuservalue(L, -1);
+ lua_replace(L, top + 1);
+ lua_pop(L, 1);
+
+ assert(lua_gettop(L) == top + 1);
+
+ /* get the assembly name */
+ push_upval(L, &asmname_key);
+ lua_pushvalue(L, nameidx);
+ lua_rawget(L, -2);
+ if (lua_isstring(L, -1)) {
+ *pname = lua_tostring(L, -1);
+ }
+ lua_pop(L, 2);
+
+ sym = find_symbol(L, modidx, *pname);
+
+ assert(lua_gettop(L) == top + 1);
+ return sym;
+}
+
+static int cmodule_index(lua_State* L)
+{
+ const char* asmname;
+ struct ctype ct;
+ void *sym;
+
+ lua_settop(L, 2);
+
+ /* see if we have already loaded the function */
+ lua_getuservalue(L, 1);
+ lua_pushvalue(L, 2);
+ lua_rawget(L, -2);
+ if (!lua_isnil(L, -1)) {
+ return 1;
+ }
+ lua_pop(L, 2);
+
+ /* check the constants table */
+ push_upval(L, &constants_key);
+ lua_pushvalue(L, 2);
+ lua_rawget(L, -2);
+ if (!lua_isnil(L, -1)) {
+ return 1;
+ }
+ lua_pop(L, 2);
+
+ /* lookup_global pushes the ct_usr */
+ sym = lookup_global(L, 1, 2, &asmname, &ct);
+
+#if defined _WIN32 && !defined _WIN64 && (defined __i386__ || defined _M_IX86)
+ if (!sym && ct.type == FUNCTION_TYPE) {
+ ct.calling_convention = STD_CALL;
+ lua_pushfstring(L, "_%s@%d", asmname, x86_return_size(L, -1, &ct));
+ sym = find_symbol(L, 1, lua_tostring(L, -1));
+ lua_pop(L, 1);
+ }
+
+ if (!sym && ct.type == FUNCTION_TYPE) {
+ ct.calling_convention = FAST_CALL;
+ lua_pushfstring(L, "@%s@%d", asmname, x86_return_size(L, -1, &ct));
+ sym = find_symbol(L, 1, lua_tostring(L, -1));
+ lua_pop(L, 1);
+ }
+#endif
+
+ if (!sym) {
+ return luaL_error(L, "failed to find function/global %s", asmname);
+ }
+
+ assert(lua_gettop(L) == 3); /* module, name, ct_usr */
+
+ if (ct.type == FUNCTION_TYPE) {
+ compile_function(L, (cfunction) sym, -1, &ct);
+ assert(lua_gettop(L) == 4); /* module, name, ct_usr, function */
+
+ /* set module usr value[luaname] = function to cache for next time */
+ lua_getuservalue(L, 1);
+ lua_pushvalue(L, 2);
+ lua_pushvalue(L, -3);
+ lua_rawset(L, -3);
+ lua_pop(L, 1); /* module uv */
+ return 1;
+ }
+
+ /* extern const char* foo; and extern const char foo[]; */
+ if (ct.pointers == 1 && ct.type == INT8_TYPE) {
+ char* str = (char*) sym;
+ if (!ct.is_array) {
+ str = *(char**) sym;
+ }
+ lua_pushstring(L, str);
+ return 1;
+ }
+
+ /* extern struct foo foo[], extern void* foo[]; and extern struct foo foo; */
+ if (ct.is_array || (!ct.pointers && (ct.type == UNION_TYPE || ct.type == STRUCT_TYPE))) {
+ void* p;
+ ct.is_reference = 1;
+ p = push_cdata(L, -1, &ct);
+ *(void**) p = sym;
+ return 1;
+ }
+
+ /* extern void* foo; and extern void (*foo)(); */
+ if (ct.pointers || ct.type == FUNCTION_PTR_TYPE) {
+ void* p = push_cdata(L, -1, &ct);
+ *(void**) p = *(void**) sym;
+ return 1;
+ }
+
+ switch (ct.type) {
+ case COMPLEX_DOUBLE_TYPE:
+ case COMPLEX_FLOAT_TYPE:
+ case INTPTR_TYPE:
+ case INT64_TYPE:
+ {
+ /* TODO: complex float/double need to be references if .re and
+ * .imag are setable */
+ void* p = push_cdata(L, -1, &ct);
+ memcpy(p, sym, ct.base_size);
+ return 1;
+ }
+
+ case DOUBLE_TYPE:
+ lua_pushnumber(L, *(double*) sym);
+ return 1;
+
+ case FLOAT_TYPE:
+ lua_pushnumber(L, *(float*) sym);
+ return 1;
+
+ case BOOL_TYPE:
+ lua_pushboolean(L, *(bool*) sym);
+ return 1;
+
+ case INT8_TYPE:
+ lua_pushnumber(L, ct.is_unsigned ? (lua_Number) *(uint8_t*) sym : (lua_Number) *(int8_t*) sym);
+ return 1;
+
+ case INT16_TYPE:
+ lua_pushnumber(L, ct.is_unsigned ? (lua_Number) *(uint16_t*) sym : (lua_Number) *(int16_t*) sym);
+ return 1;
+
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ lua_pushnumber(L, ct.is_unsigned ? (lua_Number) *(uint32_t*) sym : (lua_Number) *(int32_t*) sym);
+ return 1;
+ }
+
+ return luaL_error(L, "NYI - global value type");
+}
+
+static int cmodule_newindex(lua_State* L)
+{
+ const char* name;
+ void* sym;
+ struct ctype ct;
+
+ lua_settop(L, 3);
+
+ /* pushes the ct_usr */
+ sym = lookup_global(L, 1, 2, &name, &ct);
+ assert(lua_gettop(L) == 4); /* module, name, value, ct_usr */
+
+ if (sym == NULL) {
+ return luaL_error(L, "failed to find global %s", name);
+ }
+
+ if (ct.type == FUNCTION_TYPE || ct.is_array || (ct.const_mask & 1)) {
+ return luaL_error(L, "can not set global %s", name);
+ }
+
+ set_value(L, 3, sym, -1, &ct, 1);
+ return 0;
+}
+
+static int jit_gc(lua_State* L)
+{
+ size_t i;
+ struct jit* jit = get_jit(L);
+ dasm_free(jit);
+ for (i = 0; i < jit->pagenum; i++) {
+ FreePage(jit->pages[i], jit->pages[i]->size);
+ }
+ free(jit->globals);
+ return 0;
+}
+
+static int ffi_debug(lua_State* L)
+{
+ lua_newtable(L);
+ push_upval(L, &ctype_mt_key);
+ lua_setfield(L, -2, "ctype_mt");
+ push_upval(L, &cdata_mt_key);
+ lua_setfield(L, -2, "cdata_mt");
+ push_upval(L, &cmodule_mt_key);
+ lua_setfield(L, -2, "cmodule_mt");
+ push_upval(L, &constants_key);
+ lua_setfield(L, -2, "constants");
+ push_upval(L, &types_key);
+ lua_setfield(L, -2, "types");
+ push_upval(L, &jit_key);
+ lua_setfield(L, -2, "jit");
+ push_upval(L, &gc_key);
+ lua_setfield(L, -2, "gc");
+ push_upval(L, &callbacks_key);
+ lua_setfield(L, -2, "callbacks");
+ push_upval(L, &functions_key);
+ lua_setfield(L, -2, "functions");
+ push_upval(L, &abi_key);
+ lua_setfield(L, -2, "abi");
+ push_upval(L, &next_unnamed_key);
+ lua_setfield(L, -2, "next_unnamed");
+ return 1;
+}
+
+static int do64(lua_State* L, int is_unsigned)
+{
+ lua_Number low, high;
+ struct ctype ct;
+ int64_t val;
+
+ lua_settop(L, 2);
+
+ if (!lua_isnil(L, 2)) {
+ high = luaL_checknumber(L, 1);
+ low = luaL_checknumber(L, 2);
+ } else {
+ high = 0;
+ low = luaL_checknumber(L, 1);
+ }
+
+ val = ((int64_t) (uint32_t) high << 32) | (int64_t) (uint32_t) low;
+
+ if (!is_unsigned && (high < 0 || low < 0)) {
+ val = -val;
+ }
+
+ memset(&ct, 0, sizeof(ct));
+ ct.type = INT64_TYPE;
+ ct.is_unsigned = is_unsigned;
+ ct.is_defined = 1;
+ ct.base_size = sizeof(int64_t);
+ push_number(L, (int64_t) val, 0, &ct);
+
+ return 1;
+}
+
+static int ffi_i64(lua_State* L)
+{ return do64(L, 0); }
+
+static int ffi_u64(lua_State* L)
+{ return do64(L, 1); }
+
+static const luaL_Reg cdata_mt[] = {
+ {"__gc", &cdata_gc},
+ {"__call", &cdata_call},
+ {"free", &cdata_free},
+ {"set", &cdata_set},
+ {"__index", &cdata_index},
+ {"__newindex", &cdata_newindex},
+ {"__add", &cdata_add},
+ {"__sub", &cdata_sub},
+ {"__mul", &cdata_mul},
+ {"__div", &cdata_div},
+ {"__mod", &cdata_mod},
+ {"__pow", &cdata_pow},
+ {"__unm", &cdata_unm},
+ {"__eq", &cdata_eq},
+ {"__lt", &cdata_lt},
+ {"__le", &cdata_le},
+ {"__tostring", &cdata_tostring},
+ {"__concat", &cdata_concat},
+ {"__len", &cdata_len},
+ {"__pairs", &cdata_pairs},
+ {"__ipairs", &cdata_ipairs},
+ {NULL, NULL}
+};
+
+static const luaL_Reg callback_mt[] = {
+ {"__gc", &callback_free},
+ {NULL, NULL}
+};
+
+static const luaL_Reg ctype_mt[] = {
+ {"__call", &ctype_call},
+ {"__new", &ctype_new},
+ {"__tostring", &ctype_tostring},
+ {NULL, NULL}
+};
+
+static const luaL_Reg cmodule_mt[] = {
+ {"__index", &cmodule_index},
+ {"__newindex", &cmodule_newindex},
+ {NULL, NULL}
+};
+
+static const luaL_Reg jit_mt[] = {
+ {"__gc", &jit_gc},
+ {NULL, NULL}
+};
+
+static const luaL_Reg ffi_reg[] = {
+ {"cdef", &ffi_cdef},
+ {"load", &ffi_load},
+ {"new", &ffi_new},
+ {"typeof", &ffi_typeof},
+ {"cast", &ffi_cast},
+ {"metatype", &ffi_metatype},
+ {"gc", &ffi_gc},
+ {"sizeof", &ffi_sizeof},
+ {"alignof", &ffi_alignof},
+ {"offsetof", &ffi_offsetof},
+ {"istype", &ffi_istype},
+ {"errno", &ffi_errno},
+ {"string", &ffi_string},
+ {"copy", &ffi_copy},
+ {"fill", &ffi_fill},
+ {"abi", &ffi_abi},
+ {"debug", &ffi_debug},
+ {"i64", &ffi_i64},
+ {"u64", &ffi_u64},
+ {NULL, NULL}
+};
+
+/* leaves the usr table on the stack */
+static void push_builtin(lua_State* L, struct ctype* ct, const char* name, int type, int size, int align, int is_unsigned)
+{
+ memset(ct, 0, sizeof(*ct));
+ ct->type = type;
+ ct->base_size = size;
+ ct->align_mask = align;
+ ct->is_defined = 1;
+ ct->is_unsigned = is_unsigned;
+
+ push_upval(L, &types_key);
+ push_ctype(L, 0, ct);
+ lua_setfield(L, -2, name);
+ lua_pop(L, 1); /* types */
+}
+
+static void push_builtin_undef(lua_State* L, struct ctype* ct, const char* name, int type)
+{
+ memset(ct, 0, sizeof(*ct));
+ ct->type = type;
+
+ push_upval(L, &types_key);
+ push_ctype(L, 0, ct);
+ lua_setfield(L, -2, name);
+ lua_pop(L, 1); /* types */
+}
+
+static void add_typedef(lua_State* L, const char* from, const char* to)
+{
+ struct ctype ct;
+ struct parser P;
+ P.line = 1;
+ P.align_mask = DEFAULT_ALIGN_MASK;
+ P.next = P.prev = from;
+
+ push_upval(L, &types_key);
+ parse_type(L, &P, &ct);
+ parse_argument(L, &P, -1, &ct, NULL, NULL);
+ push_ctype(L, -1, &ct);
+
+ /* stack is at +4: types, type usr, arg usr, ctype */
+
+ lua_setfield(L, -4, to);
+ lua_pop(L, 3); /* types, type usr, arg usr */
+}
+
+static int setup_upvals(lua_State* L)
+{
+ struct jit* jit = get_jit(L);
+
+ /* jit setup */
+ {
+ dasm_init(jit, 64);
+#ifdef _WIN32
+ {
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+ jit->align_page_size = si.dwAllocationGranularity - 1;
+ }
+#else
+ jit->align_page_size = sysconf(_SC_PAGE_SIZE) - 1;
+#endif
+ jit->globals = (void**) malloc(64 * sizeof(void*));
+ dasm_setupglobal(jit, jit->globals, 64);
+ compile_globals(jit, L);
+ }
+
+ /* ffi.C */
+ {
+#ifdef _WIN32
+ size_t sz = sizeof(HMODULE) * 6;
+ HMODULE* libs = lua_newuserdata(L, sz);
+ memset(libs, 0, sz);
+
+ /* exe */
+ GetModuleHandle(NULL);
+ /* lua dll */
+#ifdef LUA_DLL_NAME
+#define STR2(tok) #tok
+#define STR(tok) STR2(tok)
+ libs[1] = LoadLibraryA(STR(LUA_DLL_NAME));
+#undef STR
+#undef STR2
+#endif
+
+ /* crt */
+#ifdef UNDER_CE
+ libs[2] = LoadLibraryA("coredll.dll");
+#else
+ GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (char*) &_fmode, &libs[2]);
+ libs[3] = LoadLibraryA("kernel32.dll");
+ libs[4] = LoadLibraryA("user32.dll");
+ libs[5] = LoadLibraryA("gdi32.dll");
+#endif
+
+ jit->lua_dll = libs[1];
+ jit->kernel32_dll = libs[3];
+
+#else /* !_WIN32 */
+ size_t sz = sizeof(void*) * 5;
+ void** libs = lua_newuserdata(L, sz);
+ memset(libs, 0, sz);
+
+ libs[0] = LoadLibraryA(NULL); /* exe */
+ libs[1] = LoadLibraryA("libc.so");
+#ifdef __GNUC__
+ libs[2] = LoadLibraryA("libgcc.so");
+#endif
+ libs[3] = LoadLibraryA("libm.so");
+ libs[4] = LoadLibraryA("libdl.so");
+#endif
+
+ lua_newtable(L);
+ lua_setuservalue(L, -2);
+
+ push_upval(L, &cmodule_mt_key);
+ lua_setmetatable(L, -2);
+
+ lua_setfield(L, 1, "C");
+ }
+
+ /* setup builtin types */
+ {
+ complex_double* pc;
+ struct {char ch; uint16_t v;} a16;
+ struct {char ch; uint32_t v;} a32;
+ struct {char ch; uint64_t v;} a64;
+ struct {char ch; float v;} af;
+ struct {char ch; double v;} ad;
+#ifdef HAVE_LONG_DOUBLE
+ struct {char ch; long double v;} ald;
+#endif
+ struct {char ch; uintptr_t v;} aptr;
+ struct ctype ct;
+ struct {char ch; complex_float v;} cf;
+ struct {char ch; complex_double v;} cd;
+#if defined HAVE_LONG_DOUBLE && defined HAVE_COMPLEX
+ struct {char ch; complex long double v;} cld;
+#endif
+
+ push_builtin(L, &ct, "void", VOID_TYPE, 0, 0, 0);
+ push_builtin(L, &ct, "bool", BOOL_TYPE, sizeof(_Bool), sizeof(_Bool) -1, 1);
+ push_builtin(L, &ct, "uint8_t", INT8_TYPE, sizeof(uint8_t), 0, 1);
+ push_builtin(L, &ct, "int8_t", INT8_TYPE, sizeof(int8_t), 0, 0);
+ push_builtin(L, &ct, "uint16_t", INT16_TYPE, sizeof(uint16_t), ALIGNOF(a16), 1);
+ push_builtin(L, &ct, "int16_t", INT16_TYPE, sizeof(int16_t), ALIGNOF(a16), 0);
+ push_builtin(L, &ct, "uint32_t", INT32_TYPE, sizeof(uint32_t), ALIGNOF(a32), 1);
+ push_builtin(L, &ct, "int32_t", INT32_TYPE, sizeof(int32_t), ALIGNOF(a32), 0);
+ push_builtin(L, &ct, "uint64_t", INT64_TYPE, sizeof(uint64_t), ALIGNOF(a64), 1);
+ push_builtin(L, &ct, "int64_t", INT64_TYPE, sizeof(int64_t), ALIGNOF(a64), 0);
+ push_builtin(L, &ct, "float", FLOAT_TYPE, sizeof(float), ALIGNOF(af), 0);
+ push_builtin(L, &ct, "double", DOUBLE_TYPE, sizeof(double), ALIGNOF(ad), 0);
+#ifdef HAVE_LONG_DOUBLE
+ push_builtin(L, &ct, "long double", LONG_DOUBLE_TYPE, sizeof(long double), ALIGNOF(ald), 0);
+#else
+ push_builtin_undef(L, &ct, "long double", LONG_DOUBLE_TYPE);
+#endif
+ push_builtin(L, &ct, "uintptr_t", INTPTR_TYPE, sizeof(uintptr_t), ALIGNOF(aptr), 1);
+ push_builtin(L, &ct, "intptr_t", INTPTR_TYPE, sizeof(uintptr_t), ALIGNOF(aptr), 0);
+ push_builtin(L, &ct, "complex float", COMPLEX_FLOAT_TYPE, sizeof(complex_float), ALIGNOF(cf), 0);
+ push_builtin(L, &ct, "complex double", COMPLEX_DOUBLE_TYPE, sizeof(complex_double), ALIGNOF(cd), 0);
+#if defined HAVE_LONG_DOUBLE && defined HAVE_COMPLEX
+ push_builtin(L, &ct, "complex long double", COMPLEX_LONG_DOUBLE_TYPE, sizeof(complex long double), ALIGNOF(cld), 0);
+#else
+ push_builtin_undef(L, &ct, "complex long double", COMPLEX_LONG_DOUBLE_TYPE);
+#endif
+
+ /* add NULL and i constants */
+ push_upval(L, &constants_key);
+
+ memset(&ct, 0, sizeof(ct));
+ ct.type = VOID_TYPE;
+ ct.is_defined = 1;
+ ct.pointers = 1;
+ ct.is_null = 1;
+
+ push_cdata(L, 0, &ct);
+ lua_setfield(L, -2, "NULL");
+
+ memset(&ct, 0, sizeof(ct));
+ ct.type = COMPLEX_DOUBLE_TYPE;
+ ct.is_defined = 1;
+ ct.base_size = sizeof(complex_double);
+ pc = (complex_double*) push_cdata(L, 0, &ct);
+#ifdef HAVE_COMPLEX
+ *pc = 1i;
+#else
+ pc->real = 0;
+ pc->imag = 1;
+#endif
+ lua_setfield(L, -2, "i");
+
+ lua_pop(L, 1); /* constants */
+ }
+
+ assert(lua_gettop(L) == 1);
+
+ /* setup builtin typedefs */
+ {
+ add_typedef(L, "bool", "_Bool");
+
+ if (sizeof(uint32_t) == sizeof(size_t)) {
+ add_typedef(L, "uint32_t", "size_t");
+ add_typedef(L, "int32_t", "ssize_t");
+ } else if (sizeof(uint64_t) == sizeof(size_t)) {
+ add_typedef(L, "uint64_t", "size_t");
+ add_typedef(L, "int64_t", "ssize_t");
+ }
+
+ if (sizeof(int32_t) == sizeof(intptr_t)) {
+ add_typedef(L, "int32_t", "intptr_t");
+ add_typedef(L, "int32_t", "ptrdiff_t");
+ } else if (sizeof(int64_t) == sizeof(intptr_t)) {
+ add_typedef(L, "int64_t", "intptr_t");
+ add_typedef(L, "int64_t", "ptrdiff_t");
+ }
+
+ if (sizeof(uint8_t) == sizeof(wchar_t)) {
+ add_typedef(L, "uint8_t", "wchar_t");
+ } else if (sizeof(uint16_t) == sizeof(wchar_t)) {
+ add_typedef(L, "uint16_t", "wchar_t");
+ } else if (sizeof(uint32_t) == sizeof(wchar_t)) {
+ add_typedef(L, "uint32_t", "wchar_t");
+ }
+
+ if (sizeof(va_list) == sizeof(char*)) {
+ add_typedef(L, "char*", "va_list");
+ } else {
+ struct {char ch; va_list v;} av;
+ lua_pushfstring(L, "struct {char data[%d] __attribute__((align(%d)));}", (int) sizeof(va_list), (int) ALIGNOF(av) + 1);
+ add_typedef(L, lua_tostring(L, -1), "va_list");
+ lua_pop(L, 1);
+ }
+
+ add_typedef(L, "va_list", "__builtin_va_list");
+ add_typedef(L, "va_list", "__gnuc_va_list");
+ }
+
+ assert(lua_gettop(L) == 1);
+
+ /* setup ABI params table */
+ push_upval(L, &abi_key);
+
+#if defined ARCH_X86 || defined ARCH_ARM
+ lua_pushboolean(L, 1);
+ lua_setfield(L, -2, "32bit");
+#elif defined ARCH_X64
+ lua_pushboolean(L, 1);
+ lua_setfield(L, -2, "64bit");
+#else
+#error
+#endif
+
+#if defined ARCH_X86 || defined ARCH_X64 || defined ARCH_ARM
+ lua_pushboolean(L, 1);
+ lua_setfield(L, -2, "le");
+#else
+#error
+#endif
+
+#if defined ARCH_X86 || defined ARCH_X64
+ lua_pushboolean(L, 1);
+ lua_setfield(L, -2, "fpu");
+#elif defined ARCH_ARM
+ lua_pushboolean(L, 1);
+ lua_setfield(L, -2, "softfp");
+#else
+#error
+#endif
+ lua_pop(L, 1); /* abi tbl */
+
+
+ /* GC table - shouldn't pin cdata values */
+ push_upval(L, &gc_key);
+ lua_newtable(L);
+ lua_pushliteral(L, "k");
+ lua_setfield(L, -2, "__mode");
+ lua_setmetatable(L, -2);
+ lua_pop(L, 1); /* gc table */
+
+
+ /* ffi.os */
+#if defined OS_CE
+ lua_pushliteral(L, "WindowsCE");
+#elif defined OS_WIN
+ lua_pushliteral(L, "Windows");
+#elif defined OS_OSX
+ lua_pushliteral(L, "OSX");
+#elif defined OS_LINUX
+ lua_pushliteral(L, "Linux");
+#elif defined OS_BSD
+ lua_pushliteral(L, "BSD");
+#elif defined OS_POSIX
+ lua_pushliteral(L, "POSIX");
+#else
+ lua_pushliteral(L, "Other");
+#endif
+ lua_setfield(L, 1, "os");
+
+
+ /* ffi.arch */
+#if defined ARCH_X86
+ lua_pushliteral(L, "x86");
+#elif defined ARCH_X64
+ lua_pushliteral(L, "x64");
+#elif defined ARCH_ARM
+ lua_pushliteral(L, "arm");
+#else
+# error
+#endif
+ lua_setfield(L, 1, "arch");
+
+ assert(lua_gettop(L) == 1);
+
+ return 0;
+}
+
+static void setup_mt(lua_State* L, const luaL_Reg* mt, int upvals)
+{
+ lua_pushboolean(L, 1);
+ lua_setfield(L, -upvals-2, "__metatable");
+ luaL_setfuncs(L, mt, upvals);
+}
+
+int luaopen_ffi(lua_State* L)
+{
+ lua_settop(L, 0);
+
+ lua_newtable(L);
+ set_upval(L, &niluv_key);
+
+ lua_newtable(L);
+ setup_mt(L, ctype_mt, 0);
+ set_upval(L, &ctype_mt_key);
+
+ lua_newtable(L);
+ set_upval(L, &callbacks_key);
+
+ lua_newtable(L);
+ set_upval(L, &gc_key);
+
+ lua_newtable(L);
+ push_upval(L, &callbacks_key);
+ push_upval(L, &gc_key);
+ setup_mt(L, cdata_mt, 2);
+ set_upval(L, &cdata_mt_key);
+
+ lua_newtable(L);
+ setup_mt(L, callback_mt, 0);
+ set_upval(L, &callback_mt_key);
+
+ lua_newtable(L);
+ setup_mt(L, cmodule_mt, 0);
+ set_upval(L, &cmodule_mt_key);
+
+ memset(lua_newuserdata(L, sizeof(struct jit)), 0, sizeof(struct jit));
+ lua_newtable(L);
+ setup_mt(L, jit_mt, 0);
+ lua_setmetatable(L, -2);
+ set_upval(L, &jit_key);
+
+ lua_newtable(L);
+ set_upval(L, &constants_key);
+
+ lua_newtable(L);
+ set_upval(L, &types_key);
+
+ lua_newtable(L);
+ set_upval(L, &functions_key);
+
+ lua_newtable(L);
+ set_upval(L, &asmname_key);
+
+ lua_newtable(L);
+ set_upval(L, &abi_key);
+
+ lua_pushinteger(L, 1);
+ set_upval(L, &next_unnamed_key);
+
+ assert(lua_gettop(L) == 0);
+
+ /* ffi table */
+ lua_newtable(L);
+ luaL_setfuncs(L, ffi_reg, 0);
+
+ /* setup_upvals(ffi tbl) */
+ lua_pushcfunction(L, &setup_upvals);
+ lua_pushvalue(L, 1);
+ lua_call(L, 1, 0);
+
+ assert(lua_gettop(L) == 1);
+
+ lua_getglobal(L, "tonumber");
+ lua_pushcclosure(L, &ffi_number, 1);
+ lua_pushvalue(L, -1);
+ lua_setglobal(L, "tonumber");
+ lua_setfield(L, -2, "number"); /* ffi.number */
+
+ return 1;
+}
diff --git a/plugins/MirLua/Modules/luaffi/src/ffi.h b/plugins/MirLua/Modules/luaffi/src/ffi.h new file mode 100644 index 0000000000..cd34afec09 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/ffi.h @@ -0,0 +1,446 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ *
+ * Copyright (c) 2011 James R. McKaskill
+ *
+ * This software is licensed under the stock MIT license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------------
+ */
+
+#pragma once
+
+#ifdef _MSC_VER
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#ifdef __cplusplus
+extern "C" {
+# include <lua.h>
+}
+# define EXTERN_C extern "C"
+#else
+# include <lua.h>
+# define EXTERN_C extern
+#endif
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <errno.h>
+#include <unistd.h>
+#include <dlfcn.h>
+#include <sys/mman.h>
+#endif
+
+#if __STDC_VERSION__+0 >= 199901L
+#include <complex.h>
+#define HAVE_COMPLEX
+#define HAVE_LONG_DOUBLE
+#endif
+
+#ifndef NDEBUG
+#define DASM_CHECKS
+#endif
+
+struct jit;
+#define Dst_DECL struct jit* Dst
+#define Dst_REF (Dst->ctx)
+#define DASM_EXTERN(a,b,c,d) get_extern(a,b,c,d)
+
+#include "dynasm/dasm_proto.h"
+
+#if defined LUA_FFI_BUILD_AS_DLL
+# define EXPORT __declspec(dllexport)
+#elif defined __GNUC__
+# define EXPORT __attribute__((visibility("default")))
+#else
+# define EXPORT
+#endif
+
+EXTERN_C EXPORT int luaopen_ffi(lua_State* L);
+
+static int lua_absindex2(lua_State* L, int idx) {
+ return (LUA_REGISTRYINDEX <= idx && idx < 0)
+ ? lua_gettop(L) + idx + 1
+ : idx;
+}
+/* use our own version of lua_absindex such that lua_absindex(L, 0) == 0 */
+#define lua_absindex(L, idx) lua_absindex2(L, idx)
+
+#if LUA_VERSION_NUM == 501
+static void lua_callk(lua_State *L, int nargs, int nresults, int ctx, lua_CFunction k)
+{
+ lua_call(L, nargs, nresults);
+}
+/*
+** set functions from list 'l' into table at top - 'nup'; each
+** function gets the 'nup' elements at the top as upvalues.
+** Returns with only the table at the stack.
+*/
+static void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) {
+ luaL_checkstack(L, nup, "too many upvalues");
+ for (; l && l->name; l++) { /* fill the table with given functions */
+ int i;
+ for (i = 0; i < nup; i++) /* copy upvalues to the top */
+ lua_pushvalue(L, -nup);
+ lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */
+ lua_setfield(L, -(nup + 2), l->name);
+ }
+ lua_pop(L, nup); /* remove upvalues */
+}
+#define lua_setuservalue lua_setfenv
+#define lua_getuservalue lua_getfenv
+#define lua_rawlen lua_objlen
+static char* luaL_prepbuffsize(luaL_Buffer* B, size_t sz) {
+ if (sz > LUAL_BUFFERSIZE) {
+ luaL_error(B->L, "string too long");
+ }
+ return luaL_prepbuffer(B);
+}
+#endif
+
+/* architectures */
+#if defined _WIN32 && defined UNDER_CE
+# define OS_CE
+#elif defined _WIN32
+# define OS_WIN
+#elif defined __APPLE__ && defined __MACH__
+# define OS_OSX
+#elif defined __linux__
+# define OS_LINUX
+#elif defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__
+# define OS_BSD
+#elif defined unix || defined __unix__ || defined __unix || defined _POSIX_VERSION || defined _XOPEN_VERSION
+# define OS_POSIX
+#endif
+
+/* architecture */
+#if defined __i386__ || defined _M_IX86
+# define ARCH_X86
+#elif defined __amd64__ || defined _M_X64
+# define ARCH_X64
+#elif defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm
+# define ARCH_ARM
+#else
+# error
+#endif
+
+
+#ifdef _WIN32
+
+# ifdef UNDER_CE
+ static void* DoLoadLibraryA(const char* name) {
+ wchar_t buf[MAX_PATH];
+ int sz = MultiByteToWideChar(CP_UTF8, 0, name, -1, buf, 512);
+ if (sz > 0) {
+ buf[sz] = 0;
+ return LoadLibraryW(buf);
+ } else {
+ return NULL;
+ }
+ }
+# define LoadLibraryA DoLoadLibraryA
+# else
+# define GetProcAddressA GetProcAddress
+# endif
+
+# define LIB_FORMAT_1 "%s.dll"
+# define AllocPage(size) VirtualAlloc(NULL, size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE)
+# define FreePage(data, size) VirtualFree(data, 0, MEM_RELEASE)
+# define EnableExecute(data, size) do {DWORD old; VirtualProtect(data, size, PAGE_EXECUTE, &old); FlushInstructionCache(GetCurrentProcess(), data, size);} while (0)
+# define EnableWrite(data, size) do {DWORD old; VirtualProtect(data, size, PAGE_READWRITE, &old);} while (0)
+
+#else
+# define LIB_FORMAT_1 "%s.so"
+# define LIB_FORMAT_2 "lib%s.so"
+# define LoadLibraryA(name) dlopen(name, RTLD_LAZY | RTLD_GLOBAL)
+# define GetProcAddressA(lib, name) dlsym(lib, name)
+# define AllocPage(size) mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0)
+# define FreePage(data, size) munmap(data, size)
+# define EnableExecute(data, size) mprotect(data, size, PROT_READ|PROT_EXEC)
+# define EnableWrite(data, size) mprotect(data, size, PROT_READ|PROT_WRITE)
+#endif
+
+#if defined ARCH_X86 || defined ARCH_X64
+#define ALLOW_MISALIGNED_ACCESS
+#endif
+
+struct token;
+
+struct parser {
+ int line;
+ const char* next;
+ const char* prev;
+ unsigned align_mask;
+};
+
+struct page {
+ size_t size;
+ size_t off;
+ size_t freed;
+};
+
+struct jit {
+ lua_State* L;
+ int32_t last_errno;
+ dasm_State* ctx;
+ size_t pagenum;
+ struct page** pages;
+ size_t align_page_size;
+ void** globals;
+ int function_extern;
+ void* lua_dll;
+ void* kernel32_dll;
+};
+
+#define ALIGN_DOWN(PTR, MASK) \
+ (((uintptr_t) (PTR)) & (~ ((uintptr_t) (MASK)) ))
+#define ALIGN_UP(PTR, MASK) \
+ (( ((uintptr_t) (PTR)) + ((uintptr_t) (MASK)) ) & (~ ((uintptr_t) (MASK)) ))
+
+/* struct cdata/struct ctype */
+
+#define PTR_ALIGN_MASK (sizeof(void*) - 1)
+#define FUNCTION_ALIGN_MASK (sizeof(void (*)()) - 1)
+#define DEFAULT_ALIGN_MASK 7
+
+#ifdef OS_OSX
+/* TODO: figure out why the alignof trick doesn't work on OS X */
+#define ALIGNED_DEFAULT 7
+#elif defined __GNUC__
+#define ALIGNED_DEFAULT (__alignof__(void* __attribute__((aligned))) - 1)
+#else
+#define ALIGNED_DEFAULT PTR_ALIGN_MASK
+#endif
+
+extern int jit_key;
+extern int ctype_mt_key;
+extern int cdata_mt_key;
+extern int cmodule_mt_key;
+extern int callback_mt_key;
+extern int constants_key;
+extern int types_key;
+extern int gc_key;
+extern int callbacks_key;
+extern int functions_key;
+extern int abi_key;
+extern int next_unnamed_key;
+extern int niluv_key;
+extern int asmname_key;
+
+int equals_upval(lua_State* L, int idx, int* key);
+void push_upval(lua_State* L, int* key);
+void set_upval(lua_State* L, int* key);
+struct jit* get_jit(lua_State* L);
+
+/* both ctype and cdata are stored as userdatas
+ *
+ * usr value is a table shared between the related subtypes which has:
+ * name -> member ctype (for structs and unions)
+ * +ves -> member ctype - in memory order (for structs)
+ * +ves -> argument ctype (for function prototypes)
+ * 0 -> return ctype (for function prototypes)
+ * light userdata -> misc
+ */
+
+enum {
+ C_CALL,
+ STD_CALL,
+ FAST_CALL,
+};
+
+enum {
+ INVALID_TYPE,
+ VOID_TYPE,
+ FLOAT_TYPE,
+ DOUBLE_TYPE,
+ LONG_DOUBLE_TYPE,
+ COMPLEX_FLOAT_TYPE,
+ COMPLEX_DOUBLE_TYPE,
+ COMPLEX_LONG_DOUBLE_TYPE,
+ BOOL_TYPE,
+ INT8_TYPE,
+ INT16_TYPE,
+ INT32_TYPE,
+ INT64_TYPE,
+ INTPTR_TYPE,
+ ENUM_TYPE,
+ UNION_TYPE,
+ STRUCT_TYPE,
+ FUNCTION_TYPE,
+ FUNCTION_PTR_TYPE,
+};
+
+#define IS_CHAR_UNSIGNED (((char) -1) > 0)
+#define IS_COMPLEX(type) ((type) == COMPLEX_FLOAT_TYPE || (type) == COMPLEX_DOUBLE_TYPE)
+
+#define POINTER_BITS 2
+#define POINTER_MAX ((1 << POINTER_BITS) - 1)
+
+#define ALIGNOF(S) ((int) ((char*) &S.v - (char*) &S - 1))
+
+/* Note: if adding a new member that is associated with a struct/union
+ * definition then it needs to be copied over in ctype.c:set_defined for when
+ * we create types based off of the declaration alone.
+ *
+ * Since this is used as a header for every ctype and cdata, and we create a
+ * ton of them on the stack, we try and minimise its size.
+ */
+struct ctype {
+ size_t base_size; /* size of the base type in bytes */
+
+ union {
+ /* valid if is_bitfield */
+ struct {
+ /* size of bitfield in bits */
+ unsigned bit_size : 7;
+ /* offset within the current byte between 0-63 */
+ unsigned bit_offset : 6;
+ };
+ /* Valid if is_array */
+ size_t array_size;
+ /* Valid for is_variable_struct or is_variable_array. If
+ * variable_size_known (only used for is_variable_struct) then this is
+ * the total increment otherwise this is the per element increment.
+ */
+ size_t variable_increment;
+ };
+ size_t offset;
+ unsigned align_mask : 4; /* as (align bytes - 1) eg 7 gives 8 byte alignment */
+ unsigned pointers : POINTER_BITS; /* number of dereferences to get to the base type including +1 for arrays */
+ unsigned const_mask : POINTER_MAX + 1; /* const pointer mask, LSB is current pointer, +1 for the whether the base type is const */
+ unsigned type : 5; /* value given by type enum above */
+ unsigned is_reference : 1;
+ unsigned is_array : 1;
+ unsigned is_defined : 1;
+ unsigned is_null : 1;
+ unsigned has_member_name : 1;
+ unsigned calling_convention : 2;
+ unsigned has_var_arg : 1;
+ unsigned is_variable_array : 1; /* set for variable array types where we don't know the variable size yet */
+ unsigned is_variable_struct : 1;
+ unsigned variable_size_known : 1; /* used for variable structs after we know the variable size */
+ unsigned is_bitfield : 1;
+ unsigned has_bitfield : 1;
+ unsigned is_jitted : 1;
+ unsigned is_packed : 1;
+ unsigned is_unsigned : 1;
+};
+
+#ifdef _MSC_VER
+__declspec(align(16))
+#endif
+struct cdata {
+ const struct ctype type
+#ifdef __GNUC__
+ __attribute__ ((aligned(16)))
+#endif
+ ;
+};
+
+typedef void (*cfunction)(void);
+
+#ifdef HAVE_COMPLEX
+typedef double complex complex_double;
+typedef float complex complex_float;
+#else
+typedef struct {
+ double real, imag;
+} complex_double;
+
+typedef struct {
+ float real, imag;
+} complex_float;
+
+static double creal(complex_double c) {
+ return c.real;
+}
+static float crealf(complex_float c) {
+ return c.real;
+}
+
+static double cimag(complex_double c) {
+ return c.imag;
+}
+static float cimagf(complex_float c) {
+ return c.imag;
+}
+#endif
+
+#define CALLBACK_FUNC_USR_IDX 1
+
+void set_defined(lua_State* L, int ct_usr, struct ctype* ct);
+struct ctype* push_ctype(lua_State* L, int ct_usr, const struct ctype* ct);
+void* push_cdata(lua_State* L, int ct_usr, const struct ctype* ct); /* called from asm */
+void push_callback(lua_State* L, cfunction f);
+void check_ctype(lua_State* L, int idx, struct ctype* ct);
+void* to_cdata(lua_State* L, int idx, struct ctype* ct);
+void* check_cdata(lua_State* L, int idx, struct ctype* ct);
+size_t ctype_size(lua_State* L, const struct ctype* ct);
+
+int parse_type(lua_State* L, struct parser* P, struct ctype* type);
+void parse_argument(lua_State* L, struct parser* P, int ct_usr, struct ctype* type, struct token* name, struct parser* asmname);
+void push_type_name(lua_State* L, int usr, const struct ctype* ct);
+
+int push_user_mt(lua_State* L, int ct_usr, const struct ctype* ct);
+
+int ffi_cdef(lua_State* L);
+
+void push_func_ref(lua_State* L, cfunction func);
+void free_code(struct jit* jit, lua_State* L, cfunction func);
+int x86_return_size(lua_State* L, int usr, const struct ctype* ct);
+void compile_function(lua_State* L, cfunction f, int ct_usr, const struct ctype* ct);
+cfunction compile_callback(lua_State* L, int fidx, int ct_usr, const struct ctype* ct);
+void compile_globals(struct jit* jit, lua_State* L);
+int get_extern(struct jit* jit, uint8_t* addr, int idx, int type);
+
+/* WARNING: assembly needs to be updated for prototype changes of these functions */
+int check_bool(lua_State* L, int idx);
+double check_double(lua_State* L, int idx);
+double check_complex_imag(lua_State* L, int idx);
+float check_float(lua_State* L, int idx);
+uint64_t check_uint64(lua_State* L, int idx);
+int64_t check_int64(lua_State* L, int idx);
+int32_t check_int32(lua_State* L, int idx);
+uint32_t check_uint32(lua_State* L, int idx);
+uintptr_t check_uintptr(lua_State* L, int idx);
+int32_t check_enum(lua_State* L, int idx, int to_usr, const struct ctype* tt);
+/* these two will always push a value so that we can create structs/functions on the fly */
+void* check_typed_pointer(lua_State* L, int idx, int to_usr, const struct ctype* tt);
+cfunction check_typed_cfunction(lua_State* L, int idx, int to_usr, const struct ctype* tt);
+complex_double check_complex_double(lua_State* L, int idx);
+complex_float check_complex_float(lua_State* L, int idx);
+
+void unpack_varargs_stack(lua_State* L, int first, int last, char* to);
+void unpack_varargs_reg(lua_State* L, int first, int last, char* to);
+
+void unpack_varargs_stack_skip(lua_State* L, int first, int last, int ints_to_skip, int floats_to_skip, char* to);
+void unpack_varargs_float(lua_State* L, int first, int last, int max, char* to);
+void unpack_varargs_int(lua_State* L, int first, int last, int max, char* to);
+
+
+
diff --git a/plugins/MirLua/Modules/luaffi/src/generate_call_h.bat b/plugins/MirLua/Modules/luaffi/src/generate_call_h.bat new file mode 100644 index 0000000000..294204271f --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/generate_call_h.bat @@ -0,0 +1,4 @@ +lua.exe dynasm\dynasm.lua -LNE -D X32WIN -o call_x86.h call_x86.dasc
+lua.exe dynasm\dynasm.lua -LNE -D X64 -o call_x64.h call_x86.dasc
+lua.exe dynasm\dynasm.lua -LNE -D X64 -D X64WIN -o call_x64win.h call_x86.dasc
+lua.exe dynasm\dynasm.lua -LNE -o call_arm.h call_arm.dasc
diff --git a/plugins/MirLua/Modules/luaffi/src/msvc/inttypes.h b/plugins/MirLua/Modules/luaffi/src/msvc/inttypes.h new file mode 100644 index 0000000000..d7e251d1b4 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/msvc/inttypes.h @@ -0,0 +1,31 @@ +#pragma once
+
+/* Signed integers */
+#define PRId8 "d"
+#define PRId16 "d"
+#define PRId32 "d"
+#define PRId64 "I64d"
+#define PRIi8 "i"
+#define PRIi16 "i"
+#define PRIi32 "i"
+#define PRIi64 "I64i"
+
+/* Unsigned integers */
+#define PRIo8 "o"
+#define PRIo16 "o"
+#define PRIo32 "o"
+#define PRIo64 "I64o"
+#define PRIu8 "u"
+#define PRIu16 "u"
+#define PRIu32 "u"
+#define PRIu64 "I64u"
+#define PRIx8 "x"
+#define PRIx16 "x"
+#define PRIx32 "x"
+#define PRIx64 "I64x"
+#define PRIX8 "X"
+#define PRIX16 "X"
+#define PRIX32 "X"
+#define PRIX64 "I64X"
+#define PRIxPTR PRIx32
+#define PRIXPTR PRIX32
diff --git a/plugins/MirLua/Modules/luaffi/src/msvc/stdbool.h b/plugins/MirLua/Modules/luaffi/src/msvc/stdbool.h new file mode 100644 index 0000000000..b6fa0603d2 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/msvc/stdbool.h @@ -0,0 +1,42 @@ +/* vim: ts=4 sw=4 sts=4 et
+ *
+ * Copyright (c) 2009 James R. McKaskill
+ *
+ * This software is licensed under the stock MIT license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------------
+ */
+
+#pragma once
+
+
+#if defined __cplusplus
+typedef bool _Bool;
+
+#else
+#pragma warning(disable:4244) /* conversion from int to _Bool */
+typedef unsigned char _Bool;
+#define bool _Bool
+#define true 1
+#define false 0
+#define __bool_true_false_are_defined 1
+
+#endif
diff --git a/plugins/MirLua/Modules/luaffi/src/msvc/stdint.h b/plugins/MirLua/Modules/luaffi/src/msvc/stdint.h new file mode 100644 index 0000000000..01ca453687 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/msvc/stdint.h @@ -0,0 +1,174 @@ +// boost cstdint.hpp header file ------------------------------------------//
+
+// (C) Copyright Beman Dawes 1999.
+// (C) Copyright Jens Mauer 2001
+// (C) Copyright John Maddock 2001
+// Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// See http://www.boost.org/libs/integer for documentation.
+
+// Revision History
+// 31 Oct 01 use BOOST_HAS_LONG_LONG to check for "long long" (Jens M.)
+// 16 Apr 01 check LONGLONG_MAX when looking for "long long" (Jens Maurer)
+// 23 Jan 01 prefer "long" over "int" for int32_t and intmax_t (Jens Maurer)
+// 12 Nov 00 Merged <boost/stdint.h> (Jens Maurer)
+// 23 Sep 00 Added INTXX_C macro support (John Maddock).
+// 22 Sep 00 Better 64-bit support (John Maddock)
+// 29 Jun 00 Reimplement to avoid including stdint.h within namespace boost
+// 8 Aug 99 Initial version (Beman Dawes)
+
+
+#ifndef STDINT_H
+#define STDINT_H
+
+#ifndef UNDER_CE
+#include <crtdefs.h>
+#endif
+
+#include <limits.h>
+
+// These are fairly safe guesses for some 16-bit, and most 32-bit and 64-bit
+// platforms. For other systems, they will have to be hand tailored.
+//
+// Because the fast types are assumed to be the same as the undecorated types,
+// it may be possible to hand tailor a more efficient implementation. Such
+// an optimization may be illusionary; on the Intel x86-family 386 on, for
+// example, byte arithmetic and load/stores are as fast as "int" sized ones.
+
+// 8-bit types ------------------------------------------------------------//
+
+# if UCHAR_MAX == 0xff
+ typedef signed char int8_t;
+ typedef signed char int_least8_t;
+ typedef signed char int_fast8_t;
+ typedef unsigned char uint8_t;
+ typedef unsigned char uint_least8_t;
+ typedef unsigned char uint_fast8_t;
+# else
+# error defaults not correct; you must hand modify boost/cstdint.hpp
+# endif
+
+// 16-bit types -----------------------------------------------------------//
+
+# if USHRT_MAX == 0xffff
+# if defined(__crayx1)
+ // The Cray X1 has a 16-bit short, however it is not recommend
+ // for use in performance critical code.
+ typedef short int16_t;
+ typedef short int_least16_t;
+ typedef int int_fast16_t;
+ typedef unsigned short uint16_t;
+ typedef unsigned short uint_least16_t;
+ typedef unsigned int uint_fast16_t;
+# else
+ typedef short int16_t;
+ typedef short int_least16_t;
+ typedef short int_fast16_t;
+ typedef unsigned short uint16_t;
+ typedef unsigned short uint_least16_t;
+ typedef unsigned short uint_fast16_t;
+# endif
+# elif (USHRT_MAX == 0xffffffff) && defined(CRAY)
+ // no 16-bit types on Cray:
+ typedef short int_least16_t;
+ typedef short int_fast16_t;
+ typedef unsigned short uint_least16_t;
+ typedef unsigned short uint_fast16_t;
+# else
+# error defaults not correct; you must hand modify boost/cstdint.hpp
+# endif
+
+// 32-bit types -----------------------------------------------------------//
+
+# if ULONG_MAX == 0xffffffff
+ typedef long int32_t;
+ typedef long int_least32_t;
+ typedef long int_fast32_t;
+ typedef unsigned long uint32_t;
+ typedef unsigned long uint_least32_t;
+ typedef unsigned long uint_fast32_t;
+# elif UINT_MAX == 0xffffffff
+ typedef int int32_t;
+ typedef int int_least32_t;
+ typedef int int_fast32_t;
+ typedef unsigned int uint32_t;
+ typedef unsigned int uint_least32_t;
+ typedef unsigned int uint_fast32_t;
+# else
+# error defaults not correct; you must hand modify boost/cstdint.hpp
+# endif
+
+// 64-bit types + intmax_t and uintmax_t ----------------------------------//
+
+ //
+ // we have Borland/Intel/Microsoft __int64:
+ //
+ typedef __int64 intmax_t;
+ typedef unsigned __int64 uintmax_t;
+ typedef __int64 int64_t;
+ typedef __int64 int_least64_t;
+ typedef __int64 int_fast64_t;
+ typedef unsigned __int64 uint64_t;
+ typedef unsigned __int64 uint_least64_t;
+ typedef unsigned __int64 uint_fast64_t;
+
+
+
+/****************************************************
+
+Macro definition section:
+
+Define various INTXX_C macros only if
+__STDC_CONSTANT_MACROS is defined.
+
+Undefine the macros if __STDC_CONSTANT_MACROS is
+not defined and the macros are (cf <cassert>).
+
+Added 23rd September 2000 (John Maddock).
+Modified 11th September 2001 to be excluded when
+BOOST_HAS_STDINT_H is defined (John Maddock).
+
+******************************************************/
+
+#if defined(__STDC_CONSTANT_MACROS) || !defined(__cplusplus)
+//
+// Borland/Intel/Microsoft compilers have width specific suffixes:
+//
+# define INT8_C(value) value##i8
+# define INT16_C(value) value##i16
+# define INT32_C(value) value##i32
+# define INT64_C(value) value##i64
+# define UINT8_C(value) value##ui8
+# define UINT16_C(value) value##ui16
+# define UINT32_C(value) value##ui32
+# define UINT64_C(value) value##ui64
+# define INTMAX_C(value) value##i64
+# define UINTMAX_C(value) value##ui64
+
+#endif // __STDC_CONSTANT_MACROS_DEFINED etc.
+
+#if defined(__STDC_LIMIT_MACROS) || !defined(__cplusplus)
+# define INT8_MIN INT8_C(-127)-1
+# define INT8_MAX INT8_C(127)
+# define INT16_MIN INT16_C(-32767)-1
+# define INT16_MAX INT16_C(32767)
+# define INT32_MIN INT32_C(-2147483647)-1
+# define INT32_MAX INT32_C(2147483647)
+# define INT64_MAX INT64_C(9223372036854775807)
+# define UINT8_MAX UINT8_C(255)
+# define UINT16_MAX UINT16_C(65535)
+# define UINT32_MAX UINT32_C(4294967295)
+# define UINT64_MAX UINT64_C(18446744073709551615)
+#endif
+
+#ifdef UNDER_CE
+typedef unsigned long uintptr_t;
+typedef long intptr_t;
+#endif
+
+
+
+#endif // BOOST_CSTDINT_HPP
+
diff --git a/plugins/MirLua/Modules/luaffi/src/msvcbuild.bat b/plugins/MirLua/Modules/luaffi/src/msvcbuild.bat new file mode 100644 index 0000000000..0279641c4c --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/msvcbuild.bat @@ -0,0 +1,76 @@ +@if not defined INCLUDE goto :FAIL
+
+@setlocal
+
+@if "%1"=="debug-5.1" goto :DEBUG_5_1
+
+rem These should not have quotes
+@set LUA_INCLUDE=Z:\c\lua-5.2.0\src
+@set LUA_LIB=Z:\c\lua-5.2.0\lua5.2.lib
+@set LUA_EXE=Z:\c\lua-5.2.0\lua.exe
+rem This the name of the dll that can be handed to LoadLibrary. This should not have a path.
+@set LUA_DLL=lua5.2.dll
+@goto :DEBUG
+
+:DEBUG_5_1
+@set LUA_INCLUDE=Z:\c\lua-5.1.4\src
+@set LUA_LIB=Z:\c\lua-5.1.4\lua5.1.lib
+@set LUA_EXE=Z:\c\lua-5.1.4\lua.exe
+@set LUA_DLL=lua5.1.dll
+
+:DEBUG
+@set DO_CL=cl.exe /nologo /c /MDd /FC /Zi /Od /W3 /WX /D_CRT_SECURE_NO_DEPRECATE /DLUA_FFI_BUILD_AS_DLL /I"msvc"
+@set DO_LINK=link /nologo /debug
+@set DO_MT=mt /nologo
+
+@if "%1"=="debug" goto :COMPILE
+@if "%1"=="debug-5.1" goto :COMPILE
+@if "%1"=="test" goto :COMPILE
+@if "%1"=="clean" goto :CLEAN
+@if "%1"=="release" goto :RELEASE
+@if "%1"=="test-release" goto :RELEASE
+
+:RELEASE
+@set DO_CL=cl.exe /nologo /c /MD /Ox /W3 /Zi /WX /D_CRT_SECURE_NO_DEPRECATE /DLUA_FFI_BUILD_AS_DLL /I"msvc"
+@set DO_LINK=link.exe /nologo /debug
+@set DO_MT=mt.exe /nologo
+@goto :COMPILE
+
+:COMPILE
+"%LUA_EXE%" dynasm\dynasm.lua -LNE -D X32WIN -o call_x86.h call_x86.dasc
+"%LUA_EXE%" dynasm\dynasm.lua -LNE -D X64 -o call_x64.h call_x86.dasc
+"%LUA_EXE%" dynasm\dynasm.lua -LNE -D X64 -D X64WIN -o call_x64win.h call_x86.dasc
+"%LUA_EXE%" dynasm\dynasm.lua -LNE -o call_arm.h call_arm.dasc
+%DO_CL% /I"." /I"%LUA_INCLUDE%" /DLUA_DLL_NAME="%LUA_DLL%" call.c ctype.c ffi.c parser.c
+%DO_LINK% /DLL /OUT:ffi.dll "%LUA_LIB%" *.obj
+if exist ffi.dll.manifest^
+ %DO_MT% -manifest ffi.dll.manifest -outputresource:"ffi.dll;2"
+
+%DO_CL% /Gd test.c /Fo"test_cdecl.obj"
+%DO_CL% /Gz test.c /Fo"test_stdcall.obj"
+%DO_CL% /Gr test.c /Fo"test_fastcall.obj"
+%DO_LINK% /DLL /OUT:test_cdecl.dll test_cdecl.obj
+%DO_LINK% /DLL /OUT:test_stdcall.dll test_stdcall.obj
+%DO_LINK% /DLL /OUT:test_fastcall.dll test_fastcall.obj
+if exist test_cdecl.dll.manifest^
+ %DO_MT% -manifest test_cdecl.dll.manifest -outputresource:"test_cdecl.dll;2"
+if exist test_stdcall.dll.manifest^
+ %DO_MT% -manifest test_stdcall.dll.manifest -outputresource:"test_stdcall.dll;2"
+if exist test_fastcall.dll.manifest^
+ %DO_MT% -manifest test_fastcall.dll.manifest -outputresource:"test_fastcall.dll;2"
+
+@if "%1"=="test" "%LUA_EXE%" test.lua
+@if "%1"=="test-5.2" "%LUA_EXE%" test.lua
+@if "%1"=="test-release" "%LUA_EXE%" test.lua
+@goto :CLEAN_OBJ
+
+:CLEAN
+del *.dll
+:CLEAN_OBJ
+del *.obj *.manifest
+@goto :END
+
+:FAIL
+@echo You must open a "Visual Studio .NET Command Prompt" to run this script
+:END
+
diff --git a/plugins/MirLua/Modules/luaffi/src/parser.c b/plugins/MirLua/Modules/luaffi/src/parser.c new file mode 100644 index 0000000000..59e0619f51 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/parser.c @@ -0,0 +1,2552 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+#include "ffi.h"
+
+#define IS_CONST(tok) (IS_LITERAL(tok, "const") || IS_LITERAL(tok, "__const") || IS_LITERAL(tok, "__const__"))
+#define IS_VOLATILE(tok) (IS_LITERAL(tok, "volatile") || IS_LITERAL(tok, "__volatile") || IS_LITERAL(tok, "__volatile__"))
+#define IS_RESTRICT(tok) (IS_LITERAL(tok, "restrict") || IS_LITERAL(tok, "__restrict") || IS_LITERAL(tok, "__restrict__"))
+
+enum etoken {
+ TOK_NIL,
+ TOK_NUMBER,
+ TOK_STRING,
+ TOK_TOKEN,
+
+ /* the order of these values must match the token strings in lex.c */
+
+ TOK_3_BEGIN,
+ TOK_VA_ARG,
+
+ TOK_2_BEGIN,
+ TOK_LEFT_SHIFT, TOK_RIGHT_SHIFT, TOK_LOGICAL_AND, TOK_LOGICAL_OR, TOK_LESS_EQUAL,
+ TOK_GREATER_EQUAL, TOK_EQUAL, TOK_NOT_EQUAL,
+
+ TOK_1_BEGIN,
+ TOK_OPEN_CURLY, TOK_CLOSE_CURLY, TOK_SEMICOLON, TOK_COMMA, TOK_COLON,
+ TOK_ASSIGN, TOK_OPEN_PAREN, TOK_CLOSE_PAREN, TOK_OPEN_SQUARE, TOK_CLOSE_SQUARE,
+ TOK_DOT, TOK_AMPERSAND, TOK_LOGICAL_NOT, TOK_BITWISE_NOT, TOK_MINUS,
+ TOK_PLUS, TOK_STAR, TOK_DIVIDE, TOK_MODULUS, TOK_LESS,
+ TOK_GREATER, TOK_BITWISE_XOR, TOK_BITWISE_OR, TOK_QUESTION, TOK_POUND,
+
+ TOK_REFERENCE = TOK_AMPERSAND,
+ TOK_MULTIPLY = TOK_STAR,
+ TOK_BITWISE_AND = TOK_AMPERSAND,
+};
+
+struct token {
+ enum etoken type;
+ int64_t integer;
+ const char* str;
+ size_t size;
+};
+
+#define IS_LITERAL(TOK, STR) \
+ (((TOK).size == sizeof(STR) - 1) && 0 == memcmp((TOK).str, STR, sizeof(STR) - 1))
+
+/* the order of tokens _must_ match the order of the enum etoken enum */
+
+static char tok3[][4] = {
+ "...", /* unused ">>=", "<<=", */
+};
+
+static char tok2[][3] = {
+ "<<", ">>", "&&", "||", "<=",
+ ">=", "==", "!=",
+ /* unused "+=", "-=", "*=", "/=", "%=", "&=", "^=", "|=", "++", "--", "->", "::", */
+};
+
+static char tok1[] = {
+ '{', '}', ';', ',', ':',
+ '=', '(', ')', '[', ']',
+ '.', '&', '!', '~', '-',
+ '+', '*', '/', '%', '<',
+ '>', '^', '|', '?', '#'
+};
+
+static int next_token(lua_State* L, struct parser* P, struct token* tok)
+{
+ size_t i;
+ const char* s = P->next;
+
+ /* UTF8 BOM */
+ if (s[0] == '\xEF' && s[1] == '\xBB' && s[2] == '\xBF') {
+ s += 3;
+ }
+
+ /* consume whitespace and comments */
+ for (;;) {
+ /* consume whitespace */
+ while(*s == '\t' || *s == '\n' || *s == ' ' || *s == '\v' || *s == '\r') {
+ if (*s == '\n') {
+ P->line++;
+ }
+ s++;
+ }
+
+ /* consume comments */
+ if (*s == '/' && *(s+1) == '/') {
+
+ s = strchr(s, '\n');
+ if (!s) {
+ luaL_error(L, "non-terminated comment");
+ }
+
+ } else if (*s == '/' && *(s+1) == '*') {
+ s += 2;
+
+ for (;;) {
+ if (s[0] == '\0') {
+ luaL_error(L, "non-terminated comment");
+ } else if (s[0] == '*' && s[1] == '/') {
+ s += 2;
+ break;
+ } else if (s[0] == '\n') {
+ P->line++;
+ }
+ s++;
+ }
+
+ } else if (*s == '\0') {
+ tok->type = TOK_NIL;
+ return 0;
+
+ } else {
+ break;
+ }
+ }
+
+ P->prev = s;
+
+ for (i = 0; i < sizeof(tok3) / sizeof(tok3[0]); i++) {
+ if (s[0] == tok3[i][0] && s[1] == tok3[i][1] && s[2] == tok3[i][2]) {
+ tok->type = (enum etoken) (TOK_3_BEGIN + 1 + i);
+ P->next = s + 3;
+ goto end;
+ }
+ }
+
+ for (i = 0; i < sizeof(tok2) / sizeof(tok2[0]); i++) {
+ if (s[0] == tok2[i][0] && s[1] == tok2[i][1]) {
+ tok->type = (enum etoken) (TOK_2_BEGIN + 1 + i);
+ P->next = s + 2;
+ goto end;
+ }
+ }
+
+ for (i = 0; i < sizeof(tok1) / sizeof(tok1[0]); i++) {
+ if (s[0] == tok1[i]) {
+ tok->type = (enum etoken) (TOK_1_BEGIN + 1 + i);
+ P->next = s + 1;
+ goto end;
+ }
+ }
+
+ if (*s == '.' || *s == '-' || ('0' <= *s && *s <= '9')) {
+ /* number */
+ tok->type = TOK_NUMBER;
+
+ /* split out the negative case so we get the full range of bits for
+ * unsigned (eg to support 0xFFFFFFFF where sizeof(long) == 4)
+ */
+ if (*s == '-') {
+ tok->integer = strtol(s, (char**) &s, 0);
+ } else {
+ tok->integer = strtoul(s, (char**) &s, 0);
+ }
+
+ while (*s == 'u' || *s == 'U' || *s == 'l' || *s == 'L') {
+ s++;
+ }
+
+ P->next = s;
+ goto end;
+
+ } else if (*s == '\'' || *s == '\"') {
+ /* "..." or '...' */
+ char quote = *s;
+ s++; /* jump over " */
+
+ tok->type = TOK_STRING;
+ tok->str = s;
+
+ while (*s != quote) {
+
+ if (*s == '\0' || (*s == '\\' && *(s+1) == '\0')) {
+ return luaL_error(L, "string not finished");
+ }
+
+ if (*s == '\\') {
+ s++;
+ }
+
+ s++;
+ }
+
+ tok->size = s - tok->str;
+ s++; /* jump over " */
+ P->next = s;
+ goto end;
+
+ } else if (('a' <= *s && *s <= 'z') || ('A' <= *s && *s <= 'Z') || *s == '_') {
+ /* tokens */
+ tok->type = TOK_TOKEN;
+ tok->str = s;
+
+ while (('a' <= *s && *s <= 'z') || ('A' <= *s && *s <= 'Z') || *s == '_' || ('0' <= *s && *s <= '9')) {
+ s++;
+ }
+
+ tok->size = s - tok->str;
+ P->next = s;
+ goto end;
+
+ } else {
+ return luaL_error(L, "invalid character %d", P->line);
+ }
+
+end:
+ /*fprintf(stderr, "token %d %d %.*s %.10s\n", tok->type, (int) tok->size, (tok->type == TOK_TOKEN || tok->type == TOK_STRING) ? (int) tok->size : 0, tok->str, P->next);*/
+ return 1;
+}
+
+static void require_token(lua_State* L, struct parser* P, struct token* tok)
+{
+ if (!next_token(L, P, tok)) {
+ luaL_error(L, "unexpected end");
+ }
+}
+
+static void check_token(lua_State* L, struct parser* P, int type, const char* str, const char* err, ...)
+{
+ struct token tok;
+ if (!next_token(L, P, &tok) || tok.type != type || (tok.type == TOK_TOKEN && (tok.size != strlen(str) || memcmp(tok.str, str, tok.size) != 0))) {
+ va_list ap;
+ va_start(ap, err);
+ lua_pushvfstring(L, err, ap);
+ lua_error(L);
+ }
+}
+
+static void put_back(struct parser* P)
+{ P->next = P->prev; }
+
+
+int64_t calculate_constant(lua_State* L, struct parser* P);
+
+static int g_name_key;
+static int g_front_name_key;
+static int g_back_name_key;
+
+#ifndef max
+#define max(a,b) ((a) < (b) ? (b) : (a))
+#endif
+
+#ifndef min
+#define min(a,b) ((a) < (b) ? (a) : (b))
+#endif
+
+enum test {TEST};
+
+/* Parses an enum definition from after the open curly through to the close
+ * curly. Expects the user table to be on the top of the stack
+ */
+static int parse_enum(lua_State* L, struct parser* P, struct ctype* type)
+{
+ struct token tok;
+ int value = -1;
+ int ct_usr = lua_gettop(L);
+
+ for (;;) {
+ require_token(L, P, &tok);
+
+ assert(lua_gettop(L) == ct_usr);
+
+ if (tok.type == TOK_CLOSE_CURLY) {
+ break;
+ } else if (tok.type != TOK_TOKEN) {
+ return luaL_error(L, "unexpected token in enum at line %d", P->line);
+ }
+
+ lua_pushlstring(L, tok.str, tok.size);
+
+ require_token(L, P, &tok);
+
+ if (tok.type == TOK_COMMA || tok.type == TOK_CLOSE_CURLY) {
+ /* we have an auto calculated enum value */
+ value++;
+ } else if (tok.type == TOK_ASSIGN) {
+ /* we have an explicit enum value */
+ value = (int) calculate_constant(L, P);
+ require_token(L, P, &tok);
+ } else {
+ return luaL_error(L, "unexpected token in enum at line %d", P->line);
+ }
+
+ assert(lua_gettop(L) == ct_usr + 1);
+
+ /* add the enum value to the constants table */
+ push_upval(L, &constants_key);
+ lua_pushvalue(L, -2);
+ lua_pushnumber(L, value);
+ lua_rawset(L, -3);
+ lua_pop(L, 1);
+
+ assert(lua_gettop(L) == ct_usr + 1);
+
+ /* add the enum value to the enum usr value table */
+ lua_pushnumber(L, value);
+ lua_rawset(L, ct_usr);
+
+ if (tok.type == TOK_CLOSE_CURLY) {
+ break;
+ } else if (tok.type != TOK_COMMA) {
+ return luaL_error(L, "unexpected token in enum at line %d", P->line);
+ }
+ }
+
+ type->base_size = sizeof(enum test);
+ type->align_mask = sizeof(enum test) - 1;
+
+ assert(lua_gettop(L) == ct_usr);
+ return 0;
+}
+
+static void calculate_member_position(lua_State* L, struct parser* P, struct ctype* ct, struct ctype* mt, int* pbit_offset, int* pbitfield_type)
+{
+ int bit_offset = *pbit_offset;
+
+ if (ct->type == UNION_TYPE) {
+ size_t msize;
+
+ if (mt->is_variable_struct || mt->is_variable_array) {
+ luaL_error(L, "NYI: variable sized members in unions");
+ return;
+
+ } else if (mt->is_bitfield) {
+ msize = (mt->align_mask + 1);
+#ifdef _WIN32
+ /* MSVC has a bug where it doesn't update the alignment of
+ * a union for bitfield members. */
+ mt->align_mask = 0;
+#endif
+
+ } else if (mt->is_array) {
+ msize = mt->array_size * (mt->pointers > 1 ? sizeof(void*) : mt->base_size);
+
+ } else {
+ msize = mt->pointers ? sizeof(void*) : mt->base_size;
+ }
+
+ ct->base_size = max(ct->base_size, msize);
+
+ } else if (mt->is_bitfield) {
+ if (mt->has_member_name && mt->bit_size == 0) {
+ luaL_error(L, "zero length bitfields must be unnamed on line %d", P->line);
+ }
+
+#if defined _WIN32
+ /* MSVC uses a seperate storage unit for each size. This is aligned
+ * before the first bitfield. :0 finishes up the storage unit using
+ * the greater alignment of the storage unit or the type used with the
+ * :0. This is equivalent to the :0 always creating a new storage
+ * unit, but not necesserily using it yet.
+ */
+
+ if (*pbitfield_type == -1 && mt->bit_size == 0) {
+ /* :0 not after a bitfield are ignored */
+ return;
+ }
+
+ {
+ int different_storage = mt->align_mask != *pbitfield_type;
+ int no_room_left = bit_offset + mt->bit_size > (mt->align_mask + 1) * CHAR_BIT;
+
+ if (different_storage || no_room_left || !mt->bit_size) {
+ ct->base_size += (bit_offset + CHAR_BIT - 1) / CHAR_BIT;
+ bit_offset = 0;
+ if (*pbitfield_type >= 0) {
+ ct->base_size = ALIGN_UP(ct->base_size, *pbitfield_type);
+ }
+ ct->base_size = ALIGN_UP(ct->base_size, mt->align_mask);
+ }
+ }
+
+ mt->bit_offset = bit_offset;
+ mt->offset = ct->base_size;
+
+ *pbitfield_type = mt->align_mask;
+ bit_offset += mt->bit_size;
+
+#elif defined OS_OSX
+ /* OSX doesn't use containers and bitfields are not aligned. So
+ * bitfields never add any padding, except for :0 which still forces
+ * an alignment based off the type used with the :0 */
+ if (mt->bit_size) {
+ mt->offset = ct->base_size;
+ mt->bit_offset = bit_offset;
+ bit_offset += mt->bit_size;
+ ct->base_size += bit_offset / CHAR_BIT;
+ bit_offset = bit_offset % CHAR_BIT;
+ } else {
+ ct->base_size += (bit_offset + CHAR_BIT - 1) / CHAR_BIT;
+ ct->base_size = ALIGN_UP(ct->base_size, mt->align_mask);
+ bit_offset = 0;
+ }
+
+ if (!mt->has_member_name) {
+ /* unnamed bitfields don't update the struct alignment */
+ mt->align_mask = 0;
+ }
+
+#elif defined __GNUC__
+ /* GCC tries to pack bitfields in as close as much as possible, but
+ * still making sure that they don't cross alignment boundaries.
+ * :0 forces an alignment based off the type used with the :0
+ */
+
+ int bits_used = (ct->base_size - ALIGN_DOWN(ct->base_size, mt->align_mask)) * CHAR_BIT + bit_offset;
+ int need_to_realign = bits_used + mt->bit_size > mt->base_size * CHAR_BIT;
+
+ if (!mt->is_packed && (!mt->bit_size || need_to_realign)) {
+ ct->base_size += (bit_offset + CHAR_BIT - 1) / CHAR_BIT;
+ ct->base_size = ALIGN_UP(ct->base_size, mt->align_mask);
+ bit_offset = 0;
+ }
+
+ mt->bit_offset = bit_offset;
+ mt->offset = ct->base_size;
+
+ bit_offset += mt->bit_size;
+ ct->base_size += bit_offset / CHAR_BIT;
+ bit_offset = bit_offset % CHAR_BIT;
+
+ /* unnamed bitfields don't update the struct alignment */
+ if (!mt->has_member_name) {
+ mt->align_mask = 0;
+ }
+#else
+#error
+#endif
+
+ } else {
+ /* finish up the current bitfield storage unit */
+ ct->base_size += (bit_offset + CHAR_BIT - 1) / CHAR_BIT;
+ bit_offset = 0;
+
+ if (*pbitfield_type >= 0) {
+ ct->base_size = ALIGN_UP(ct->base_size, *pbitfield_type);
+ }
+
+ *pbitfield_type = -1;
+
+ ct->base_size = ALIGN_UP(ct->base_size, mt->align_mask);
+ mt->offset = ct->base_size;
+
+ if (mt->is_variable_array) {
+ ct->is_variable_struct = 1;
+ ct->variable_increment = mt->pointers > 1 ? sizeof(void*) : mt->base_size;
+
+ } else if (mt->is_variable_struct) {
+ assert(!mt->variable_size_known && !mt->is_array && !mt->pointers);
+ ct->base_size += mt->base_size;
+ ct->is_variable_struct = 1;
+ ct->variable_increment = mt->variable_increment;
+
+ } else if (mt->is_array) {
+ ct->base_size += mt->array_size * (mt->pointers > 1 ? sizeof(void*) : mt->base_size);
+
+ } else {
+ ct->base_size += mt->pointers ? sizeof(void*) : mt->base_size;
+ }
+ }
+
+ /* increase the outer struct/union alignment if needed */
+ if (mt->align_mask > (int) ct->align_mask) {
+ ct->align_mask = mt->align_mask;
+ }
+
+ if (mt->has_bitfield || mt->is_bitfield) {
+ ct->has_bitfield = 1;
+ }
+
+ *pbit_offset = bit_offset;
+}
+
+static int copy_submembers(lua_State* L, int to_usr, int from_usr, const struct ctype* ft, int* midx)
+{
+ struct ctype ct;
+ int i, sublen;
+
+ from_usr = lua_absindex(L, from_usr);
+ to_usr = lua_absindex(L, to_usr);
+
+ /* integer keys */
+ sublen = (int) lua_rawlen(L, from_usr);
+ for (i = 1; i <= sublen; i++) {
+ lua_rawgeti(L, from_usr, i);
+
+ ct = *(const struct ctype*) lua_touserdata(L, -1);
+ ct.offset += ft->offset;
+ lua_getuservalue(L, -1);
+
+ push_ctype(L, -1, &ct);
+ lua_rawseti(L, to_usr, (*midx)++);
+
+ lua_pop(L, 2); /* ctype, user value */
+ }
+
+ /* string keys */
+ lua_pushnil(L);
+ while (lua_next(L, from_usr)) {
+ if (lua_type(L, -2) == LUA_TSTRING) {
+ struct ctype ct = *(const struct ctype*) lua_touserdata(L, -1);
+ ct.offset += ft->offset;
+ lua_getuservalue(L, -1);
+
+ /* uservalue[sub_mname] = new_sub_mtype */
+ lua_pushvalue(L, -3);
+ push_ctype(L, -2, &ct);
+ lua_rawset(L, to_usr);
+
+ lua_pop(L, 1); /* remove submember user value */
+ }
+ lua_pop(L, 1);
+ }
+
+ return 0;
+}
+
+static int add_member(lua_State* L, int ct_usr, int mname, int mbr_usr, const struct ctype* mt, int* midx)
+{
+ ct_usr = lua_absindex(L, ct_usr);
+ mname = lua_absindex(L, mname);
+
+ push_ctype(L, mbr_usr, mt);
+
+ /* usrvalue[mbr index] = pushed mtype */
+ lua_pushvalue(L, -1);
+ lua_rawseti(L, ct_usr, (*midx)++);
+
+ /* set usrvalue[mname] = pushed mtype */
+ lua_pushvalue(L, mname);
+ lua_pushvalue(L, -2);
+ lua_rawset(L, ct_usr);
+
+ /* set usrvalue[mtype] = mname */
+ lua_pushvalue(L, -1);
+ lua_pushvalue(L, mname);
+ lua_rawset(L, ct_usr);
+
+ lua_pop(L, 1);
+
+ return 0;
+}
+
+/* Parses a struct from after the open curly through to the close curly.
+ */
+static int parse_struct(lua_State* L, struct parser* P, int tmp_usr, const struct ctype* ct)
+{
+ struct token tok;
+ int midx = 1;
+ int top = lua_gettop(L);
+
+ tmp_usr = lua_absindex(L, tmp_usr);
+
+ /* parse members */
+ for (;;) {
+ struct ctype mbase;
+
+ assert(lua_gettop(L) == top);
+
+ /* see if we're at the end of the struct */
+ require_token(L, P, &tok);
+ if (tok.type == TOK_CLOSE_CURLY) {
+ break;
+ } else if (ct->is_variable_struct) {
+ return luaL_error(L, "can't have members after a variable sized member on line %d", P->line);
+ } else {
+ put_back(P);
+ }
+
+ /* members are of the form
+ * <base type> <arg>, <arg>, <arg>;
+ * eg struct foo bar, *bar2[2];
+ * mbase is 'struct foo'
+ * mtype is '' then '*[2]'
+ * mname is 'bar' then 'bar2'
+ */
+
+ parse_type(L, P, &mbase);
+
+ for (;;) {
+ struct token mname;
+ struct ctype mt = mbase;
+
+ memset(&mname, 0, sizeof(mname));
+
+ if (ct->is_variable_struct) {
+ return luaL_error(L, "can't have members after a variable sized member on line %d", P->line);
+ }
+
+ assert(lua_gettop(L) == top + 1);
+ parse_argument(L, P, -1, &mt, &mname, NULL);
+ assert(lua_gettop(L) == top + 2);
+
+ if (!mt.is_defined && (mt.pointers - mt.is_array) == 0) {
+ return luaL_error(L, "member type is undefined on line %d", P->line);
+ }
+
+ if (mt.type == VOID_TYPE && (mt.pointers - mt.is_array) == 0) {
+ return luaL_error(L, "member type can not be void on line %d", P->line);
+ }
+
+ mt.has_member_name = (mname.size > 0);
+ lua_pushlstring(L, mname.str, mname.size);
+
+ add_member(L, tmp_usr, -1, -2, &mt, &midx);
+
+ /* pop the usr value from push_argument and the member name */
+ lua_pop(L, 2);
+ assert(lua_gettop(L) == top + 1);
+
+ require_token(L, P, &tok);
+ if (tok.type == TOK_SEMICOLON) {
+ break;
+ } else if (tok.type != TOK_COMMA) {
+ luaL_error(L, "unexpected token in struct definition on line %d", P->line);
+ }
+ }
+
+ /* pop the usr value from push_type */
+ lua_pop(L, 1);
+ }
+
+ assert(lua_gettop(L) == top);
+ return 0;
+}
+
+static int calculate_struct_offsets(lua_State* L, struct parser* P, int ct_usr, struct ctype* ct, int tmp_usr)
+{
+ int i;
+ int midx = 1;
+ int sz = (int) lua_rawlen(L, tmp_usr);
+ int bit_offset = 0;
+ int bitfield_type = -1;
+
+ ct_usr = lua_absindex(L, ct_usr);
+ tmp_usr = lua_absindex(L, tmp_usr);
+
+ for (i = 1; i <= sz; i++) {
+ struct ctype mt;
+
+ /* get the member type */
+ lua_rawgeti(L, tmp_usr, i);
+ mt = *(const struct ctype*) lua_touserdata(L, -1);
+
+ /* get the member user table */
+ lua_getuservalue(L, -1);
+
+ /* get the member name */
+ lua_pushvalue(L, -2);
+ lua_rawget(L, tmp_usr);
+
+ calculate_member_position(L, P, ct, &mt, &bit_offset, &bitfield_type);
+
+ if (mt.has_member_name) {
+ assert(!lua_isnil(L, -1));
+ add_member(L, ct_usr, -1, -2, &mt, &midx);
+
+ } else if (mt.type == STRUCT_TYPE || mt.type == UNION_TYPE) {
+ /* With an unnamed member we copy all of the submembers into our
+ * usr value adjusting the offset as necessary. Note ctypes are
+ * immutable so need to push a new ctype to update the offset.
+ */
+ copy_submembers(L, ct_usr, -2, &mt, &midx);
+
+ } else {
+ /* We ignore unnamed members that aren't structs or unions. These
+ * are there just to change the padding */
+ }
+
+ lua_pop(L, 3);
+ }
+
+ /* finish up the current bitfield storage unit */
+ ct->base_size += (bit_offset + CHAR_BIT - 1) / CHAR_BIT;
+
+ /* only void is allowed 0 size */
+ if (ct->base_size == 0) {
+ ct->base_size = 1;
+ }
+
+ ct->base_size = ALIGN_UP(ct->base_size, ct->align_mask);
+ return 0;
+}
+
+/* copy over attributes that could be specified before the typedef eg
+ * __attribute__(packed) const type_t */
+static void instantiate_typedef(struct parser* P, struct ctype* tt, const struct ctype* ft)
+{
+ struct ctype pt = *tt;
+ *tt = *ft;
+
+ tt->const_mask |= pt.const_mask;
+ tt->is_packed = pt.is_packed;
+
+ if (tt->is_packed) {
+ tt->align_mask = 0;
+ } else {
+ /* Instantiate the typedef in the current packing. This may be
+ * further updated if a pointer is added or another alignment
+ * attribute is applied. If pt.align_mask is already non-zero than an
+ * increased alignment via __declspec(aligned(#)) has been set. */
+ tt->align_mask = max(min(P->align_mask, tt->align_mask), pt.align_mask);
+ }
+}
+
+/* this parses a struct or union starting with the optional
+ * name before the opening brace
+ * leaves the type usr value on the stack
+ */
+static int parse_record(lua_State* L, struct parser* P, struct ctype* ct)
+{
+ struct token tok;
+ int top = lua_gettop(L);
+
+ require_token(L, P, &tok);
+
+ /* name is optional */
+ if (tok.type == TOK_TOKEN) {
+ /* declaration */
+ lua_pushlstring(L, tok.str, tok.size);
+
+ assert(lua_gettop(L) == top+1);
+
+ /* lookup the name to see if we've seen this type before */
+ push_upval(L, &types_key);
+ lua_pushvalue(L, -2);
+ lua_rawget(L, top+2);
+
+ assert(lua_gettop(L) == top+3);
+
+ if (lua_isnil(L, -1)) {
+ lua_pop(L, 1); /* pop the nil usr value */
+ lua_newtable(L); /* the new usr table */
+
+ /* stack layout is:
+ * top+1: record name
+ * top+2: types table
+ * top+3: new usr table
+ */
+
+ lua_pushlightuserdata(L, &g_name_key);
+ lua_pushvalue(L, top+1);
+ lua_rawset(L, top+3); /* usr[name_key] = name */
+
+ lua_pushvalue(L, top+1);
+ push_ctype(L, top+3, ct);
+ lua_rawset(L, top+2); /* types[name] = new_ctype */
+
+ } else {
+ /* get the exsting declared type */
+ const struct ctype* prevt = (const struct ctype*) lua_touserdata(L, top+3);
+
+ if (prevt->type != ct->type) {
+ lua_getuservalue(L, top+3);
+ push_type_name(L, -1, ct);
+ push_type_name(L, top+3, prevt);
+ luaL_error(L, "type '%s' previously declared as '%s'", lua_tostring(L, -2), lua_tostring(L, -1));
+ }
+
+ instantiate_typedef(P, ct, prevt);
+
+ /* replace the ctype with its usr value */
+ lua_getuservalue(L, -1);
+ lua_replace(L, -2);
+ }
+
+ /* remove the extra name and types table */
+ lua_replace(L, -3);
+ lua_pop(L, 1);
+
+ assert(lua_gettop(L) == top + 1 && lua_istable(L, -1));
+
+ /* if a name is given then we may be at the end of the string
+ * eg for ffi.new('struct foo')
+ */
+ if (!next_token(L, P, &tok)) {
+ return 0;
+ }
+
+ } else {
+ /* create a new unnamed record */
+ int num;
+
+ /* get the next unnamed number */
+ push_upval(L, &next_unnamed_key);
+ num = lua_tointeger(L, -1);
+ lua_pop(L, 1);
+
+ /* increment the unnamed upval */
+ lua_pushinteger(L, num + 1);
+ set_upval(L, &next_unnamed_key);
+
+ lua_newtable(L); /* the new usr table - leave on stack */
+
+ /* usr[name_key] = num */
+ lua_pushlightuserdata(L, &g_name_key);
+ lua_pushfstring(L, "%d", num);
+ lua_rawset(L, -3);
+ }
+
+ if (tok.type != TOK_OPEN_CURLY) {
+ /* this may just be a declaration or use of the type as an argument or
+ * member */
+ put_back(P);
+ return 0;
+ }
+
+ if (ct->is_defined) {
+ return luaL_error(L, "redefinition in line %d", P->line);
+ }
+
+ assert(lua_gettop(L) == top + 1 && lua_istable(L, -1));
+
+ if (ct->type == ENUM_TYPE) {
+ parse_enum(L, P, ct);
+ } else {
+ /* we do a two stage parse, where we parse the content first and build up
+ * the temp user table. We then iterate over that to calculate the offsets
+ * and fill out ct_usr. This is so we can handle out of order members
+ * (eg vtable) and attributes specified at the end of the struct.
+ */
+ lua_newtable(L);
+ parse_struct(L, P, -1, ct);
+ calculate_struct_offsets(L, P, -2, ct, -1);
+ assert(lua_gettop(L) == top + 2 && lua_istable(L, -1));
+ lua_pop(L, 1);
+ }
+
+ assert(lua_gettop(L) == top + 1 && lua_istable(L, -1));
+ set_defined(L, -1, ct);
+ assert(lua_gettop(L) == top + 1);
+ return 0;
+}
+
+/* parses single or multi work built in types, and pushes it onto the stack */
+static int parse_type_name(lua_State* L, struct parser* P)
+{
+ struct token tok;
+ int flags = 0;
+
+ enum {
+ UNSIGNED = 0x01,
+ SIGNED = 0x02,
+ LONG = 0x04,
+ SHORT = 0x08,
+ INT = 0x10,
+ CHAR = 0x20,
+ LONG_LONG = 0x40,
+ INT8 = 0x80,
+ INT16 = 0x100,
+ INT32 = 0x200,
+ INT64 = 0x400,
+ DOUBLE = 0x800,
+ FLOAT = 0x1000,
+ COMPLEX = 0x2000,
+ };
+
+ require_token(L, P, &tok);
+
+ /* we have to manually decode the builtin types since they can take up
+ * more then one token
+ */
+ for (;;) {
+ if (tok.type != TOK_TOKEN) {
+ break;
+ } else if (IS_LITERAL(tok, "unsigned")) {
+ flags |= UNSIGNED;
+ } else if (IS_LITERAL(tok, "signed")) {
+ flags |= SIGNED;
+ } else if (IS_LITERAL(tok, "short")) {
+ flags |= SHORT;
+ } else if (IS_LITERAL(tok, "char")) {
+ flags |= CHAR;
+ } else if (IS_LITERAL(tok, "long")) {
+ flags |= (flags & LONG) ? LONG_LONG : LONG;
+ } else if (IS_LITERAL(tok, "int")) {
+ flags |= INT;
+ } else if (IS_LITERAL(tok, "__int8")) {
+ flags |= INT8;
+ } else if (IS_LITERAL(tok, "__int16")) {
+ flags |= INT16;
+ } else if (IS_LITERAL(tok, "__int32")) {
+ flags |= INT32;
+ } else if (IS_LITERAL(tok, "__int64")) {
+ flags |= INT64;
+ } else if (IS_LITERAL(tok, "double")) {
+ flags |= DOUBLE;
+ } else if (IS_LITERAL(tok, "float")) {
+ flags |= FLOAT;
+ } else if (IS_LITERAL(tok, "complex") || IS_LITERAL(tok, "_Complex")) {
+ flags |= COMPLEX;
+ } else if (IS_LITERAL(tok, "register")) {
+ /* ignore */
+ } else {
+ break;
+ }
+
+ if (!next_token(L, P, &tok)) {
+ break;
+ }
+ }
+
+ if (flags) {
+ put_back(P);
+ }
+
+ if (flags & CHAR) {
+ if (flags & SIGNED) {
+ lua_pushliteral(L, "int8_t");
+ } else if (flags & UNSIGNED) {
+ lua_pushliteral(L, "uint8_t");
+ } else {
+ lua_pushstring(L, (((char) -1) > 0) ? "uint8_t" : "int8_t");
+ }
+
+ } else if (flags & INT8) {
+ lua_pushstring(L, (flags & UNSIGNED) ? "uint8_t" : "int8_t");
+ } else if (flags & INT16) {
+ lua_pushstring(L, (flags & UNSIGNED) ? "uint16_t" : "int16_t");
+ } else if (flags & INT32) {
+ lua_pushstring(L, (flags & UNSIGNED) ? "uint32_t" : "int32_t");
+ } else if (flags & (INT64 | LONG_LONG)) {
+ lua_pushstring(L, (flags & UNSIGNED) ? "uint64_t" : "int64_t");
+
+ } else if (flags & COMPLEX) {
+ if (flags & LONG) {
+ lua_pushliteral(L, "complex long double");
+ } else if (flags & FLOAT) {
+ lua_pushliteral(L, "complex float");
+ } else {
+ lua_pushliteral(L, "complex double");
+ }
+
+ } else if (flags & DOUBLE) {
+ if (flags & LONG) {
+ lua_pushliteral(L, "long double");
+ } else {
+ lua_pushliteral(L, "double");
+ }
+
+ } else if (flags & FLOAT) {
+ lua_pushliteral(L, "float");
+
+ } else if (flags & SHORT) {
+#define SHORT_TYPE(u) (sizeof(short) == sizeof(int64_t) ? u "int64_t" : sizeof(short) == sizeof(int32_t) ? u "int32_t" : u "int16_t")
+ if (flags & UNSIGNED) {
+ lua_pushstring(L, SHORT_TYPE("u"));
+ } else {
+ lua_pushstring(L, SHORT_TYPE(""));
+ }
+#undef SHORT_TYPE
+
+ } else if (flags & LONG) {
+#define LONG_TYPE(u) (sizeof(long) == sizeof(int64_t) ? u "int64_t" : u "int32_t")
+ if (flags & UNSIGNED) {
+ lua_pushstring(L, LONG_TYPE("u"));
+ } else {
+ lua_pushstring(L, LONG_TYPE(""));
+ }
+#undef LONG_TYPE
+
+ } else if (flags) {
+#define INT_TYPE(u) (sizeof(int) == sizeof(int64_t) ? u "int64_t" : sizeof(int) == sizeof(int32_t) ? u "int32_t" : u "int16_t")
+ if (flags & UNSIGNED) {
+ lua_pushstring(L, INT_TYPE("u"));
+ } else {
+ lua_pushstring(L, INT_TYPE(""));
+ }
+#undef INT_TYPE
+
+ } else {
+ lua_pushlstring(L, tok.str, tok.size);
+ }
+
+ return 0;
+}
+
+/* parse_attribute parses a token to see if it is an attribute. It may then
+ * parse some following tokens to decode the attribute setting the appropriate
+ * fields in ct. It will return 1 if the token was used (and possibly some
+ * more following it) or 0 if not. If the token was used, the next token must
+ * be retrieved using next_token/require_token.
+ */
+static int parse_attribute(lua_State* L, struct parser* P, struct token* tok, struct ctype* ct, struct parser* asmname)
+{
+ if (tok->type != TOK_TOKEN) {
+ return 0;
+
+ } else if (asmname && (IS_LITERAL(*tok, "__asm__") || IS_LITERAL(*tok, "__asm"))) {
+ check_token(L, P, TOK_OPEN_PAREN, NULL, "unexpected token after __asm__ on line %d", P->line);
+ *asmname = *P;
+
+ require_token(L, P, tok);
+ while (tok->type == TOK_STRING) {
+ require_token(L, P, tok);
+ }
+
+ if (tok->type != TOK_CLOSE_PAREN) {
+ luaL_error(L, "unexpected token after __asm__ on line %d", P->line);
+ }
+ return 1;
+
+ } else if (IS_LITERAL(*tok, "__attribute__") || IS_LITERAL(*tok, "__declspec")) {
+ int parens = 1;
+ check_token(L, P, TOK_OPEN_PAREN, NULL, "expected parenthesis after __attribute__ or __declspec on line %d", P->line);
+
+ for (;;) {
+ require_token(L, P, tok);
+ if (tok->type == TOK_OPEN_PAREN) {
+ parens++;
+ } else if (tok->type == TOK_CLOSE_PAREN) {
+ if (--parens == 0) {
+ break;
+ }
+
+ } else if (tok->type != TOK_TOKEN) {
+ /* ignore unknown symbols within parentheses */
+
+ } else if (IS_LITERAL(*tok, "align") || IS_LITERAL(*tok, "aligned") || IS_LITERAL(*tok, "__aligned__")) {
+ unsigned align = 0;
+ require_token(L, P, tok);
+
+ switch (tok->type) {
+ case TOK_CLOSE_PAREN:
+ align = ALIGNED_DEFAULT;
+ put_back(P);
+ break;
+
+ case TOK_OPEN_PAREN:
+ require_token(L, P, tok);
+
+ if (tok->type != TOK_NUMBER) {
+ luaL_error(L, "expected align(#) on line %d", P->line);
+ }
+
+ switch (tok->integer) {
+ case 1: align = 0; break;
+ case 2: align = 1; break;
+ case 4: align = 3; break;
+ case 8: align = 7; break;
+ case 16: align = 15; break;
+ default:
+ luaL_error(L, "unsupported align size on line %d", P->line);
+ }
+
+ check_token(L, P, TOK_CLOSE_PAREN, NULL, "expected align(#) on line %d", P->line);
+ break;
+
+ default:
+ luaL_error(L, "expected align(#) on line %d", P->line);
+ }
+
+ /* __attribute__(aligned(#)) is only supposed to increase alignment */
+ ct->align_mask = max(align, ct->align_mask);
+
+ } else if (IS_LITERAL(*tok, "packed") || IS_LITERAL(*tok, "__packed__")) {
+ ct->align_mask = 0;
+ ct->is_packed = 1;
+
+ } else if (IS_LITERAL(*tok, "mode") || IS_LITERAL(*tok, "__mode__")) {
+
+ check_token(L, P, TOK_OPEN_PAREN, NULL, "expected mode(MODE) on line %d", P->line);
+
+ require_token(L, P, tok);
+ if (tok->type != TOK_TOKEN) {
+ luaL_error(L, "expected mode(MODE) on line %d", P->line);
+ }
+
+ if (ct->type == FLOAT_TYPE || ct->type == DOUBLE_TYPE) {
+ struct {char ch; float v;} af;
+ struct {char ch; double v;} ad;
+
+ if (IS_LITERAL(*tok, "SF") || IS_LITERAL(*tok, "__SF__")) {
+ ct->type = FLOAT_TYPE;
+ ct->base_size = sizeof(float);
+ ct->align_mask = ALIGNOF(af);
+
+ } else if (IS_LITERAL(*tok, "DF") || IS_LITERAL(*tok, "__DF__")) {
+ ct->type = DOUBLE_TYPE;
+ ct->base_size = sizeof(double);
+ ct->align_mask = ALIGNOF(ad);
+
+ } else {
+ luaL_error(L, "unexpected mode on line %d", P->line);
+ }
+
+ } else {
+ struct {char ch; uint16_t v;} a16;
+ struct {char ch; uint32_t v;} a32;
+ struct {char ch; uint64_t v;} a64;
+
+ if (IS_LITERAL(*tok, "QI") || IS_LITERAL(*tok, "__QI__")
+ || IS_LITERAL(*tok, "byte") || IS_LITERAL(*tok, "__byte__")
+ ) {
+ ct->type = INT8_TYPE;
+ ct->base_size = sizeof(uint8_t);
+ ct->align_mask = 0;
+
+ } else if (IS_LITERAL(*tok, "HI") || IS_LITERAL(*tok, "__HI__")) {
+ ct->type = INT16_TYPE;
+ ct->base_size = sizeof(uint16_t);
+ ct->align_mask = ALIGNOF(a16);
+
+ } else if (IS_LITERAL(*tok, "SI") || IS_LITERAL(*tok, "__SI__")
+#if defined ARCH_X86 || defined ARCH_ARM
+ || IS_LITERAL(*tok, "word") || IS_LITERAL(*tok, "__word__")
+ || IS_LITERAL(*tok, "pointer") || IS_LITERAL(*tok, "__pointer__")
+#endif
+ ) {
+ ct->type = INT32_TYPE;
+ ct->base_size = sizeof(uint32_t);
+ ct->align_mask = ALIGNOF(a32);
+
+ } else if (IS_LITERAL(*tok, "DI") || IS_LITERAL(*tok, "__DI__")
+#if defined ARCH_X64
+ || IS_LITERAL(*tok, "word") || IS_LITERAL(*tok, "__word__")
+ || IS_LITERAL(*tok, "pointer") || IS_LITERAL(*tok, "__pointer__")
+#endif
+ ) {
+ ct->type = INT64_TYPE;
+ ct->base_size = sizeof(uint64_t);
+ ct->align_mask = ALIGNOF(a64);
+
+ } else {
+ luaL_error(L, "unexpected mode on line %d", P->line);
+ }
+ }
+
+ check_token(L, P, TOK_CLOSE_PAREN, NULL, "expected mode(MODE) on line %d", P->line);
+
+ } else if (IS_LITERAL(*tok, "cdecl") || IS_LITERAL(*tok, "__cdecl__")) {
+ ct->calling_convention = C_CALL;
+
+ } else if (IS_LITERAL(*tok, "fastcall") || IS_LITERAL(*tok, "__fastcall__")) {
+ ct->calling_convention = FAST_CALL;
+
+ } else if (IS_LITERAL(*tok, "stdcall") || IS_LITERAL(*tok, "__stdcall__")) {
+ ct->calling_convention = STD_CALL;
+ }
+ /* ignore unknown tokens within parentheses */
+ }
+ return 1;
+
+ } else if (IS_LITERAL(*tok, "__cdecl")) {
+ ct->calling_convention = C_CALL;
+ return 1;
+
+ } else if (IS_LITERAL(*tok, "__fastcall")) {
+ ct->calling_convention = FAST_CALL;
+ return 1;
+
+ } else if (IS_LITERAL(*tok, "__stdcall")) {
+ ct->calling_convention = STD_CALL;
+ return 1;
+
+ } else if (IS_LITERAL(*tok, "__extension__") || IS_LITERAL(*tok, "extern")) {
+ /* ignore */
+ return 1;
+
+ } else {
+ return 0;
+ }
+}
+
+/* parses out the base type of a type expression in a function declaration,
+ * struct definition, typedef etc
+ *
+ * leaves the usr value of the type on the stack
+ */
+int parse_type(lua_State* L, struct parser* P, struct ctype* ct)
+{
+ struct token tok;
+ int top = lua_gettop(L);
+
+ memset(ct, 0, sizeof(*ct));
+
+ require_token(L, P, &tok);
+
+ /* get function attributes before the return type */
+ while (parse_attribute(L, P, &tok, ct, NULL)) {
+ require_token(L, P, &tok);
+ }
+
+ /* get const/volatile before the base type */
+ for (;;) {
+ if (tok.type != TOK_TOKEN) {
+ return luaL_error(L, "unexpected value before type name on line %d", P->line);
+
+ } else if (IS_CONST(tok)) {
+ ct->const_mask = 1;
+ require_token(L, P, &tok);
+
+ } else if (IS_VOLATILE(tok) || IS_RESTRICT(tok)) {
+ /* ignored for now */
+ require_token(L, P, &tok);
+
+ } else {
+ break;
+ }
+ }
+
+ /* get base type */
+ if (tok.type != TOK_TOKEN) {
+ return luaL_error(L, "unexpected value before type name on line %d", P->line);
+
+ } else if (IS_LITERAL(tok, "struct")) {
+ ct->type = STRUCT_TYPE;
+ parse_record(L, P, ct);
+
+ } else if (IS_LITERAL(tok, "union")) {
+ ct->type = UNION_TYPE;
+ parse_record(L, P, ct);
+
+ } else if (IS_LITERAL(tok, "enum")) {
+ ct->type = ENUM_TYPE;
+ parse_record(L, P, ct);
+
+ } else {
+ put_back(P);
+
+ /* lookup type */
+ push_upval(L, &types_key);
+ parse_type_name(L, P);
+ lua_rawget(L, -2);
+ lua_remove(L, -2);
+
+ if (lua_isnil(L, -1)) {
+ lua_pushlstring(L, tok.str, tok.size);
+ return luaL_error(L, "unknown type %s on line %d", lua_tostring(L, -1), P->line);
+ }
+
+ instantiate_typedef(P, ct, (const struct ctype*) lua_touserdata(L, -1));
+
+ /* we only want the usr tbl from the ctype in the types tbl */
+ lua_getuservalue(L, -1);
+ lua_replace(L, -2);
+ }
+
+ while (next_token(L, P, &tok)) {
+ if (tok.type != TOK_TOKEN) {
+ put_back(P);
+ break;
+
+ } else if (IS_CONST(tok) || IS_VOLATILE(tok)) {
+ /* ignore for now */
+
+ } else {
+ put_back(P);
+ break;
+ }
+ }
+
+ assert(lua_gettop(L) == top + 1 && (lua_istable(L, -1) || lua_isnil(L, -1)));
+ return 0;
+}
+
+enum name_type {
+ BOTH,
+ FRONT,
+ BACK,
+};
+
+static void append_type_name(luaL_Buffer* B, int usr, const struct ctype* ct, enum name_type type)
+{
+ size_t i;
+ lua_State* L = B->L;
+
+ usr = lua_absindex(L, usr);
+
+ if (type == FRONT || type == BOTH) {
+ if (ct->type != FUNCTION_PTR_TYPE && (ct->const_mask & (1 << ct->pointers))) {
+ luaL_addstring(B, "const ");
+ }
+
+ if (ct->is_unsigned) {
+ luaL_addstring(B, "unsigned ");
+ }
+
+ switch (ct->type) {
+ case ENUM_TYPE:
+ luaL_addstring(B, "enum ");
+ goto get_name;
+
+ case STRUCT_TYPE:
+ luaL_addstring(B, "struct ");
+ goto get_name;
+
+ case UNION_TYPE:
+ luaL_addstring(B, "union ");
+ goto get_name;
+
+ get_name:
+ lua_pushlightuserdata(L, &g_name_key);
+ lua_rawget(L, usr);
+ luaL_addvalue(B);
+ break;
+
+ case FUNCTION_TYPE:
+ case FUNCTION_PTR_TYPE:
+ lua_pushlightuserdata(L, &g_front_name_key);
+ lua_rawget(L, usr);
+ luaL_addvalue(B);
+ break;
+
+ case VOID_TYPE:
+ luaL_addstring(B, "void");
+ break;
+ case BOOL_TYPE:
+ luaL_addstring(B, "bool");
+ break;
+ case DOUBLE_TYPE:
+ luaL_addstring(B, "double");
+ break;
+ case LONG_DOUBLE_TYPE:
+ luaL_addstring(B, "long double");
+ break;
+ case FLOAT_TYPE:
+ luaL_addstring(B, "float");
+ break;
+ case COMPLEX_LONG_DOUBLE_TYPE:
+ luaL_addstring(B, "long complex double");
+ break;
+ case COMPLEX_DOUBLE_TYPE:
+ luaL_addstring(B, "complex double");
+ break;
+ case COMPLEX_FLOAT_TYPE:
+ luaL_addstring(B, "complex float");
+ break;
+ case INT8_TYPE:
+ luaL_addstring(B, "char");
+ break;
+ case INT16_TYPE:
+ luaL_addstring(B, "short");
+ break;
+ case INT32_TYPE:
+ luaL_addstring(B, "int");
+ break;
+ case INT64_TYPE:
+ luaL_addstring(B, "long long");
+ break;
+
+ case INTPTR_TYPE:
+ if (sizeof(intptr_t) == sizeof(int32_t)) {
+ luaL_addstring(B, "long");
+ } else if (sizeof(intptr_t) == sizeof(int64_t)) {
+ luaL_addstring(B, "long long");
+ } else {
+ luaL_error(L, "internal error - bad type");
+ }
+ break;
+
+ default:
+ luaL_error(L, "internal error - bad type %d", ct->type);
+ }
+
+ for (i = 0; i < ct->pointers - ct->is_array; i++) {
+ luaL_addchar(B, '*');
+ if (ct->const_mask & (1 << (ct->pointers - i - 1))) {
+ luaL_addstring(B, " const");
+ }
+ }
+ }
+
+ if (type == BOTH || type == BACK) {
+ if (ct->is_reference) {
+ luaL_addstring(B, "(&)");
+ }
+
+ if (ct->is_variable_array && !ct->variable_size_known) {
+ luaL_addstring(B, "[?]");
+ } else if (ct->is_array) {
+ lua_pushfstring(L, "[%d]", (int) ct->array_size);
+ luaL_addvalue(B);
+ }
+
+ if (ct->type == FUNCTION_PTR_TYPE || ct->type == FUNCTION_TYPE) {
+ lua_pushlightuserdata(L, &g_back_name_key);
+ lua_rawget(L, usr);
+ luaL_addvalue(B);
+ }
+
+ if (ct->is_bitfield) {
+ lua_pushfstring(L, " : %d", (int) ct->bit_size);
+ luaL_addvalue(B);
+ }
+ }
+}
+
+void push_type_name(lua_State* L, int usr, const struct ctype* ct)
+{
+ luaL_Buffer B;
+ usr = lua_absindex(L, usr);
+ luaL_buffinit(L, &B);
+ append_type_name(&B, usr, ct, BOTH);
+ luaL_pushresult(&B);
+}
+
+static void push_function_type_strings(lua_State* L, int usr, const struct ctype* ct)
+{
+ size_t i, args;
+ luaL_Buffer B;
+ int top = lua_gettop(L);
+ const struct ctype* ret_ct;
+
+ int arg_ct = top+3;
+ int arg_usr = top+4;
+ int ret_usr = top+6;
+
+ usr = lua_absindex(L, usr);
+
+ /* return type */
+ lua_settop(L, top+4); /* room for two returns and two temp positions */
+ lua_rawgeti(L, usr, 0);
+ lua_getuservalue(L, -1);
+ ret_ct = (const struct ctype*) lua_touserdata(L, -2);
+
+ luaL_buffinit(L, &B);
+ append_type_name(&B, ret_usr, ret_ct, FRONT);
+
+ if (ret_ct->type != FUNCTION_TYPE && ret_ct->type != FUNCTION_PTR_TYPE) {
+ luaL_addchar(&B, ' ');
+ }
+
+ switch (ct->calling_convention) {
+ case STD_CALL:
+ luaL_addstring(&B, "(__stdcall *");
+ break;
+ case FAST_CALL:
+ luaL_addstring(&B, "(__fastcall *");
+ break;
+ case C_CALL:
+ luaL_addstring(&B, "(*");
+ break;
+ default:
+ luaL_error(L, "internal error - unknown calling convention");
+ }
+
+ luaL_pushresult(&B);
+ lua_replace(L, top+1);
+
+ luaL_buffinit(L, &B);
+ luaL_addstring(&B, ")(");
+
+ /* arguments */
+ args = lua_rawlen(L, usr);
+ for (i = 1; i <= args; i++) {
+ if (i > 1) {
+ luaL_addstring(&B, ", ");
+ }
+
+ /* note push the arg and user value below the indexes used by the buffer
+ * and use indexes relative to top to avoid problems due to the buffer
+ * system pushing a variable number of arguments onto the stack */
+ lua_rawgeti(L, usr, (int) i);
+ lua_replace(L, arg_ct);
+ lua_getuservalue(L, arg_ct);
+ lua_replace(L, arg_usr);
+ append_type_name(&B, arg_usr, (const struct ctype*) lua_touserdata(L, arg_ct), BOTH);
+ }
+
+ luaL_addstring(&B, ")");
+ append_type_name(&B, ret_usr, ret_ct, BACK);
+ luaL_pushresult(&B);
+ lua_replace(L, top+2);
+
+ lua_settop(L, top+2);
+ assert(lua_isstring(L, top+1) && lua_isstring(L, top+2));
+}
+
+/* parses from after the opening paranthesis to after the closing parenthesis */
+static void parse_function_arguments(lua_State* L, struct parser* P, int ct_usr, struct ctype* ct)
+{
+ struct token tok;
+ int args = 0;
+ int top = lua_gettop(L);
+
+ ct_usr = lua_absindex(L, ct_usr);
+
+ for (;;) {
+ require_token(L, P, &tok);
+
+ if (tok.type == TOK_CLOSE_PAREN) {
+ break;
+ }
+
+ if (args) {
+ if (tok.type != TOK_COMMA) {
+ luaL_error(L, "unexpected token in function argument %d on line %d", args, P->line);
+ }
+
+ require_token(L, P, &tok);
+ }
+
+ if (tok.type == TOK_VA_ARG) {
+ ct->has_var_arg = true;
+ check_token(L, P, TOK_CLOSE_PAREN, "", "unexpected token after ... in function on line %d", P->line);
+ break;
+
+ } else if (tok.type == TOK_TOKEN) {
+ struct ctype at;
+
+ put_back(P);
+ parse_type(L, P, &at);
+ parse_argument(L, P, -1, &at, NULL, NULL);
+
+ assert(lua_gettop(L) == top + 2);
+
+ /* array arguments are just treated as their base pointer type */
+ at.is_array = 0;
+
+ /* check for the c style int func(void) and error on other uses of arguments of type void */
+ if (at.type == VOID_TYPE && at.pointers == 0) {
+ if (args) {
+ luaL_error(L, "can't have argument of type void on line %d", P->line);
+ }
+
+ check_token(L, P, TOK_CLOSE_PAREN, "", "unexpected void in function on line %d", P->line);
+ lua_pop(L, 2);
+ break;
+ }
+
+ push_ctype(L, -1, &at);
+ lua_rawseti(L, ct_usr, ++args);
+
+ lua_pop(L, 2); /* parse_type and parse_argument at_usr */
+
+ } else {
+ luaL_error(L, "unexpected token in function argument %d on line %d", args+1, P->line);
+ }
+ }
+
+ assert(lua_gettop(L) == top);
+}
+
+static int max_bitfield_size(int type)
+{
+ switch (type) {
+ case BOOL_TYPE:
+ return 1;
+ case INT8_TYPE:
+ return 8;
+ case INT16_TYPE:
+ return 16;
+ case INT32_TYPE:
+ case ENUM_TYPE:
+ return 32;
+ case INT64_TYPE:
+ return 64;
+ default:
+ return -1;
+ }
+}
+
+static struct ctype* parse_argument2(lua_State* L, struct parser* P, int ct_usr, struct ctype* ct, struct token* name, struct parser* asmname);
+
+/* parses from after the first ( in a function declaration or function pointer
+ * can be one of:
+ * void foo(...) before ...
+ * void (foo)(...) before foo
+ * void (* <>)(...) before <> which is the inner type
+ */
+static struct ctype* parse_function(lua_State* L, struct parser* P, int ct_usr, struct ctype* ct, struct token* name, struct parser* asmname)
+{
+ /* We have a function pointer or a function. The usr table will
+ * get replaced by the canonical one (if there is one) in
+ * find_canonical_usr after all the arguments and returns have
+ * been parsed. */
+ struct token tok;
+ int top = lua_gettop(L);
+ struct ctype* ret;
+
+ lua_newtable(L);
+ ret = push_ctype(L, ct_usr, ct);
+ lua_rawseti(L, -2, 0);
+ ct_usr = lua_gettop(L);
+
+ memset(ct, 0, sizeof(*ct));
+ ct->base_size = sizeof(void (*)());
+ ct->align_mask = min(FUNCTION_ALIGN_MASK, P->align_mask);
+ ct->type = FUNCTION_TYPE;
+ ct->is_defined = 1;
+
+ if (name->type == TOK_NIL) {
+ for (;;) {
+ require_token(L, P, &tok);
+
+ if (tok.type == TOK_STAR) {
+
+ if (ct->type == FUNCTION_TYPE) {
+ ct->type = FUNCTION_PTR_TYPE;
+ } else if (ct->pointers == POINTER_MAX) {
+ luaL_error(L, "maximum number of pointer derefs reached - use a struct to break up the pointers on line %d", P->line);
+ } else {
+ ct->pointers++;
+ ct->const_mask <<= 1;
+ }
+
+ } else if (parse_attribute(L, P, &tok, ct, asmname)) {
+ /* parse_attribute sets the appropriate fields */
+
+ } else {
+ /* call parse_argument to handle the inner contents
+ * e.g. the <> in "void (* <>) (...)". Note that the
+ * inner contents can itself be a function, a function
+ * ptr, array, etc (e.g. "void (*signal(int sig, void
+ * (*func)(int)))(int)" ).
+ */
+ put_back(P);
+ ct = parse_argument2(L, P, ct_usr, ct, name, asmname);
+ break;
+ }
+ }
+
+ check_token(L, P, TOK_CLOSE_PAREN, NULL, "unexpected token in function on line %d", P->line);
+ check_token(L, P, TOK_OPEN_PAREN, NULL, "unexpected token in function on line %d", P->line);
+ }
+
+ parse_function_arguments(L, P, ct_usr, ct);
+
+ /* if we have an inner function then set the outer function ptr as its
+ * return type and return the inner function
+ * e.g. for void (* <signal(int, void (*)(int))> )(int) inner is
+ * surrounded by <>, return type is void (*)(int)
+ */
+ if (lua_gettop(L) == ct_usr+1) {
+ lua_replace(L, ct_usr);
+ }
+
+ assert(lua_gettop(L) == top + 1 && lua_istable(L, -1));
+ return ret;
+}
+
+static struct ctype* parse_argument2(lua_State* L, struct parser* P, int ct_usr, struct ctype* ct, struct token* name, struct parser* asmname)
+{
+ struct token tok;
+ int top = lua_gettop(L);
+ int ft_usr = 0;
+
+ luaL_checkstack(L, 10, "function too complex");
+ ct_usr = lua_absindex(L, ct_usr);
+
+ for (;;) {
+ if (!next_token(L, P, &tok)) {
+ /* we've reached the end of the string */
+ break;
+
+ } else if (tok.type == TOK_STAR) {
+ if (ct->pointers == POINTER_MAX) {
+ luaL_error(L, "maximum number of pointer derefs reached - use a struct to break up the pointers on line %d", P->line);
+ }
+
+ ct->pointers++;
+ ct->const_mask <<= 1;
+
+ /* __declspec(align(#)) may come before the type in a member */
+ if (!ct->is_packed) {
+ ct->align_mask = max(min(PTR_ALIGN_MASK, P->align_mask), ct->align_mask);
+ }
+
+ } else if (tok.type == TOK_REFERENCE) {
+ luaL_error(L, "NYI: c++ reference types");
+
+ } else if (parse_attribute(L, P, &tok, ct, asmname)) {
+ /* parse attribute has filled out appropriate fields in type */
+
+ } else if (tok.type == TOK_OPEN_PAREN) {
+ ct = parse_function(L, P, ct_usr, ct, name, asmname);
+ ft_usr = lua_gettop(L);
+
+ } else if (tok.type == TOK_OPEN_SQUARE) {
+ /* array */
+ if (ct->pointers == POINTER_MAX) {
+ luaL_error(L, "maximum number of pointer derefs reached - use a struct to break up the pointers");
+ }
+ ct->is_array = 1;
+ ct->pointers++;
+ ct->const_mask <<= 1;
+ require_token(L, P, &tok);
+
+ if (ct->pointers == 1 && !ct->is_defined) {
+ luaL_error(L, "array of undefined type on line %d", P->line);
+ }
+
+ if (ct->is_variable_struct || ct->is_variable_array) {
+ luaL_error(L, "can't have an array of a variably sized type on line %d", P->line);
+ }
+
+ if (tok.type == TOK_QUESTION) {
+ ct->is_variable_array = 1;
+ ct->variable_increment = (ct->pointers > 1) ? sizeof(void*) : ct->base_size;
+ check_token(L, P, TOK_CLOSE_SQUARE, "", "invalid character in array on line %d", P->line);
+
+ } else if (tok.type == TOK_CLOSE_SQUARE) {
+ ct->array_size = 0;
+
+ } else if (tok.type == TOK_TOKEN && IS_RESTRICT(tok)) {
+ /* odd gcc extension foo[__restrict] for arguments */
+ ct->array_size = 0;
+ check_token(L, P, TOK_CLOSE_SQUARE, "", "invalid character in array on line %d", P->line);
+
+ } else {
+ int64_t asize;
+ put_back(P);
+ asize = calculate_constant(L, P);
+ if (asize < 0) {
+ luaL_error(L, "array size can not be negative on line %d", P->line);
+ }
+ ct->array_size = (size_t) asize;
+ check_token(L, P, TOK_CLOSE_SQUARE, "", "invalid character in array on line %d", P->line);
+ }
+
+ } else if (tok.type == TOK_COLON) {
+ int64_t bsize = calculate_constant(L, P);
+
+ if (ct->pointers || bsize < 0 || bsize > max_bitfield_size(ct->type)) {
+ luaL_error(L, "invalid bitfield on line %d", P->line);
+ }
+
+ ct->is_bitfield = 1;
+ ct->bit_size = (unsigned) bsize;
+
+ } else if (tok.type != TOK_TOKEN) {
+ /* we've reached the end of the declaration */
+ put_back(P);
+ break;
+
+ } else if (IS_CONST(tok)) {
+ ct->const_mask |= 1;
+
+ } else if (IS_VOLATILE(tok) || IS_RESTRICT(tok)) {
+ /* ignored for now */
+
+ } else {
+ *name = tok;
+ }
+ }
+
+ assert((ft_usr == 0 && lua_gettop(L) == top) || (lua_gettop(L) == top + 1 && ft_usr == top + 1 && (lua_istable(L, -1) || lua_isnil(L, -1))));
+ return ct;
+}
+
+static void find_canonical_usr(lua_State* L, int ct_usr, const struct ctype *ct)
+{
+ struct ctype rt;
+ int top = lua_gettop(L);
+ int types;
+
+ if (ct->type != FUNCTION_PTR_TYPE && ct->type != FUNCTION_TYPE) {
+ return;
+ }
+
+ luaL_checkstack(L, 10, "function too complex");
+ ct_usr = lua_absindex(L, ct_usr);
+
+ /* check to see if we already have the canonical usr table */
+ lua_pushlightuserdata(L, &g_name_key);
+ lua_rawget(L, ct_usr);
+ if (!lua_isnil(L, -1)) {
+ lua_pop(L, 1);
+ assert(top == lua_gettop(L));
+ return;
+ }
+ lua_pop(L, 1);
+
+ assert(top == lua_gettop(L));
+
+ /* first canonize the return type */
+ lua_rawgeti(L, ct_usr, 0);
+ rt = *(struct ctype*) lua_touserdata(L, -1);
+ lua_getuservalue(L, -1);
+ find_canonical_usr(L, -1, &rt);
+ push_ctype(L, -1, &rt);
+ lua_rawseti(L, ct_usr, 0);
+ lua_pop(L, 2); /* return ctype and usr */
+
+ assert(top == lua_gettop(L));
+
+ /* look up the type string in the types table */
+ push_upval(L, &types_key);
+ types = lua_gettop(L);
+
+ push_function_type_strings(L, ct_usr, ct);
+ lua_pushvalue(L, -2);
+ lua_pushvalue(L, -2);
+ lua_concat(L, 2);
+
+ lua_pushvalue(L, -1);
+ lua_rawget(L, types);
+
+ assert(lua_gettop(L) == types + 4 && types == top + 1);
+ /* stack: types, front, back, both, looked up value */
+
+ if (lua_isnil(L, -1)) {
+ lua_pop(L, 1);
+
+ lua_pushlightuserdata(L, &g_front_name_key);
+ lua_pushvalue(L, -4);
+ lua_rawset(L, ct_usr);
+
+ lua_pushlightuserdata(L, &g_back_name_key);
+ lua_pushvalue(L, -3);
+ lua_rawset(L, ct_usr);
+
+ lua_pushlightuserdata(L, &g_name_key);
+ lua_pushvalue(L, -2);
+ lua_rawset(L, ct_usr);
+
+ lua_pushvalue(L, -1);
+ push_ctype(L, ct_usr, ct);
+ lua_rawset(L, types);
+ } else {
+ lua_getuservalue(L, -1);
+ lua_replace(L, ct_usr);
+ lua_pop(L, 1);
+ }
+
+ lua_pop(L, 4);
+ assert(top == lua_gettop(L) && types == top + 1);
+}
+
+
+/* parses after the main base type of a typedef, function argument or
+ * struct/union member
+ * eg for const void* bar[3] the base type is void with the subtype so far of
+ * const, this parses the "* bar[3]" and updates the type argument
+ *
+ * ct_usr and type must be as filled out by parse_type
+ *
+ * pushes the updated user value on the top of the stack
+ */
+void parse_argument(lua_State* L, struct parser* P, int ct_usr, struct ctype* ct, struct token* pname, struct parser* asmname)
+{
+ struct token tok, name;
+ int top = lua_gettop(L);
+
+ memset(&name, 0, sizeof(name));
+ parse_argument2(L, P, ct_usr, ct, &name, asmname);
+
+ for (;;) {
+ if (!next_token(L, P, &tok)) {
+ break;
+ } else if (parse_attribute(L, P, &tok, ct, asmname)) {
+ /* parse_attribute sets the appropriate fields */
+ } else {
+ put_back(P);
+ break;
+ }
+ }
+
+ if (lua_gettop(L) == top) {
+ lua_pushvalue(L, ct_usr);
+ }
+
+ find_canonical_usr(L, -1, ct);
+
+ if (pname) {
+ *pname = name;
+ }
+}
+
+static void parse_typedef(lua_State* L, struct parser* P)
+{
+ struct token tok;
+ struct ctype base_type;
+ int top = lua_gettop(L);
+
+ parse_type(L, P, &base_type);
+
+ for (;;) {
+ struct ctype arg_type = base_type;
+ struct token name;
+
+ memset(&name, 0, sizeof(name));
+
+ assert(lua_gettop(L) == top + 1);
+ parse_argument(L, P, -1, &arg_type, &name, NULL);
+ assert(lua_gettop(L) == top + 2);
+
+ if (!name.size) {
+ luaL_error(L, "Can't have a typedef without a name on line %d", P->line);
+ } else if (arg_type.is_variable_array) {
+ luaL_error(L, "Can't typedef a variable length array on line %d", P->line);
+ }
+
+ push_upval(L, &types_key);
+ lua_pushlstring(L, name.str, name.size);
+ push_ctype(L, -3, &arg_type);
+ lua_rawset(L, -3);
+ lua_pop(L, 2); /* types and parse_argument usr tbl */
+
+ require_token(L, P, &tok);
+
+ if (tok.type == TOK_SEMICOLON) {
+ break;
+ } else if (tok.type != TOK_COMMA) {
+ luaL_error(L, "Unexpected character in typedef on line %d", P->line);
+ }
+ }
+
+ lua_pop(L, 1); /* parse_type usr tbl */
+ assert(lua_gettop(L) == top);
+}
+
+static bool is_hex(char ch)
+{ return ('0' <= ch && ch <= '9') || ('a' <= ch && ch <= 'f') || ('A' <= ch && ch <= 'F'); }
+
+static bool is_digit(char ch)
+{ return '0' <= ch && ch <= '9'; }
+
+static int from_hex(char ch)
+{
+ if (ch >= 'a') {
+ return ch - 'a' + 10;
+ } else if (ch >= 'A') {
+ return ch - 'A' + 10;
+ } else {
+ return ch - '0';
+ }
+}
+
+static void push_strings(lua_State* L, struct parser* P)
+{
+ luaL_Buffer B;
+ luaL_buffinit(L, &B);
+
+ for (;;) {
+ const char *p, *e;
+ char *t, *s;
+ struct token tok;
+
+ require_token(L, P, &tok);
+ if (tok.type != TOK_STRING) {
+ break;
+ }
+
+ p = tok.str;
+ e = p + tok.size;
+
+ t = luaL_prepbuffsize(&B, tok.size);
+ s = t;
+
+ while (p < e) {
+ if (*p == '\\') {
+ if (++p == e) {
+ luaL_error(L, "parse error in string");
+ }
+ switch (*p) {
+ case '\\': *(t++) = '\\'; p++; break;
+ case '\"': *(t++) = '\"'; p++; break;
+ case '\'': *(t++) = '\''; p++; break;
+ case 'n': *(t++) = '\n'; p++; break;
+ case 'r': *(t++) = '\r'; p++; break;
+ case 'b': *(t++) = '\b'; p++; break;
+ case 't': *(t++) = '\t'; p++; break;
+ case 'f': *(t++) = '\f'; p++; break;
+ case 'a': *(t++) = '\a'; p++; break;
+ case 'v': *(t++) = '\v'; p++; break;
+ case 'e': *(t++) = 0x1B; p++; break;
+ case 'x':
+ {
+ uint8_t u;
+ p++;
+ if (p + 2 > e || !is_hex(p[0]) || !is_hex(p[1])) {
+ luaL_error(L, "parse error in string");
+ }
+ u = (from_hex(p[0]) << 4) | from_hex(p[1]);
+ *(t++) = *(char*) &u;
+ p += 2;
+ break;
+ }
+ default:
+ {
+ uint8_t u;
+ const char* e2 = min(p + 3, e);
+ if (!is_digit(*p)) {
+ luaL_error(L, "parse error in string");
+ }
+ u = *p - '0';
+ p++;
+ while (is_digit(*p) && p < e2) {
+ u = 10*u + *p-'0';
+ p++;
+ }
+ *(t++) = *(char*) &u;
+ break;
+ }
+ }
+ } else {
+ *(t++) = *(p++);
+ }
+ }
+
+ luaL_addsize(&B, t-s);
+ }
+
+ luaL_pushresult(&B);
+}
+
+#define END 0
+#define PRAGMA_POP 1
+
+static int parse_root(lua_State* L, struct parser* P)
+{
+ int top = lua_gettop(L);
+ struct token tok;
+
+ while (next_token(L, P, &tok)) {
+ /* we can have:
+ * struct definition
+ * enum definition
+ * union definition
+ * struct/enum/union declaration
+ * typedef
+ * function declaration
+ * pragma pack
+ */
+
+ assert(lua_gettop(L) == top);
+
+ if (tok.type == TOK_SEMICOLON) {
+ /* empty semicolon in root continue on */
+
+ } else if (tok.type == TOK_POUND) {
+
+ check_token(L, P, TOK_TOKEN, "pragma", "unexpected pre processor directive on line %d", P->line);
+ check_token(L, P, TOK_TOKEN, "pack", "unexpected pre processor directive on line %d", P->line);
+ check_token(L, P, TOK_OPEN_PAREN, "", "invalid pack directive on line %d", P->line);
+
+ require_token(L, P, &tok);
+
+ if (tok.type == TOK_NUMBER) {
+ if (tok.integer != 1 && tok.integer != 2 && tok.integer != 4 && tok.integer != 8 && tok.integer != 16) {
+ luaL_error(L, "pack directive with invalid pack size on line %d", P->line);
+ }
+
+ P->align_mask = (unsigned) (tok.integer - 1);
+ check_token(L, P, TOK_CLOSE_PAREN, "", "invalid pack directive on line %d", P->line);
+
+ } else if (tok.type == TOK_TOKEN && IS_LITERAL(tok, "push")) {
+ int line = P->line;
+ unsigned previous_alignment = P->align_mask;
+
+ check_token(L, P, TOK_CLOSE_PAREN, "", "invalid pack directive on line %d", P->line);
+
+ if (parse_root(L, P) != PRAGMA_POP) {
+ luaL_error(L, "reached end of string without a pragma pop to match the push on line %d", line);
+ }
+
+ P->align_mask = previous_alignment;
+
+ } else if (tok.type == TOK_TOKEN && IS_LITERAL(tok, "pop")) {
+ check_token(L, P, TOK_CLOSE_PAREN, "", "invalid pack directive on line %d", P->line);
+ return PRAGMA_POP;
+
+ } else {
+ luaL_error(L, "invalid pack directive on line %d", P->line);
+ }
+
+
+ } else if (tok.type != TOK_TOKEN) {
+ return luaL_error(L, "unexpected character on line %d", P->line);
+
+ } else if (IS_LITERAL(tok, "__extension__")) {
+ /* ignore */
+ continue;
+
+ } else if (IS_LITERAL(tok, "extern")) {
+ /* ignore extern as data and functions can only be extern */
+ continue;
+
+ } else if (IS_LITERAL(tok, "typedef")) {
+ parse_typedef(L, P);
+
+ } else if (IS_LITERAL(tok, "static")) {
+ struct ctype at;
+
+ int64_t val;
+ require_token(L, P, &tok);
+ if (!IS_CONST(tok)) {
+ luaL_error(L, "expected 'static const int' on line %d", P->line);
+ }
+
+ parse_type(L, P, &at);
+
+ require_token(L, P, &tok);
+ if (tok.type != TOK_TOKEN) {
+ luaL_error(L, "expected constant name after 'static const int' on line %d", P->line);
+ }
+
+ check_token(L, P, TOK_ASSIGN, "", "expected = after 'static const int <name>' on line %d", P->line);
+
+ val = calculate_constant(L, P);
+
+ check_token(L, P, TOK_SEMICOLON, "", "expected ; after 'static const int' definition on line %d", P->line);
+
+ push_upval(L, &constants_key);
+ lua_pushlstring(L, tok.str, tok.size);
+
+ switch (at.type) {
+ case INT8_TYPE:
+ case INT16_TYPE:
+ case INT32_TYPE:
+ if (at.is_unsigned)
+ lua_pushnumber(L, (unsigned int) val);
+ else
+ lua_pushnumber(L, (int) val);
+ break;
+
+ default:
+ luaL_error(L, "expected a valid 8-, 16-, or 32-bit signed or unsigned integer type after 'static const' on line %d", P->line);
+ }
+
+ lua_rawset(L, -3);
+ lua_pop(L, 2); /*constants and type*/
+
+ } else {
+ /* type declaration, type definition, or function declaration */
+ struct ctype type;
+ struct token name;
+ struct parser asmname;
+
+ memset(&name, 0, sizeof(name));
+ memset(&asmname, 0, sizeof(asmname));
+
+ put_back(P);
+ parse_type(L, P, &type);
+
+ for (;;) {
+ parse_argument(L, P, -1, &type, &name, &asmname);
+
+ if (name.size) {
+ /* global/function declaration */
+
+ /* set asmname_tbl[name] = asmname */
+ if (asmname.next) {
+ push_upval(L, &asmname_key);
+ lua_pushlstring(L, name.str, name.size);
+ push_strings(L, &asmname);
+ lua_rawset(L, -3);
+ lua_pop(L, 1); /* asmname upval */
+ }
+
+ push_upval(L, &functions_key);
+ lua_pushlstring(L, name.str, name.size);
+ push_ctype(L, -3, &type);
+ lua_rawset(L, -3);
+ lua_pop(L, 1); /* functions upval */
+ } else {
+ /* type declaration/definition - already been processed */
+ }
+
+ lua_pop(L, 1);
+
+ require_token(L, P, &tok);
+
+ if (tok.type == TOK_SEMICOLON) {
+ break;
+ } else if (tok.type != TOK_COMMA) {
+ luaL_error(L, "missing semicolon on line %d", P->line);
+ }
+ }
+
+ lua_pop(L, 1);
+ }
+ }
+
+ return END;
+}
+
+int ffi_cdef(lua_State* L)
+{
+ struct parser P;
+
+ P.line = 1;
+ P.prev = P.next = luaL_checkstring(L, 1);
+ P.align_mask = DEFAULT_ALIGN_MASK;
+
+ if (parse_root(L, &P) == PRAGMA_POP) {
+ luaL_error(L, "pragma pop without an associated push on line %d", P.line);
+ }
+
+ return 0;
+}
+
+/* calculate_constant handles operator precedence by having a number of
+ * recursive commands each of which computes the result at that level of
+ * precedence and above. calculate_constant1 is the highest precedence
+ */
+
+static int try_cast(lua_State* L)
+{
+ struct parser* P = (struct parser*) lua_touserdata(L, 1);
+ struct ctype ct;
+ struct token name, tok;
+ memset(&name, 0, sizeof(name));
+
+ parse_type(L, P, &ct);
+ parse_argument(L, P, -1, &ct, &name, NULL);
+
+ require_token(L, P, &tok);
+ if (tok.type != TOK_CLOSE_PAREN || name.size) {
+ return luaL_error(L, "invalid cast");
+ }
+
+ if (ct.pointers || ct.type != INT32_TYPE) {
+ return luaL_error(L, "unsupported cast on line %d", P->line);
+ }
+
+ return 0;
+}
+
+static int64_t calculate_constant2(lua_State* L, struct parser* P, struct token* tok);
+
+/* () */
+static int64_t calculate_constant1(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t ret;
+
+ if (tok->type == TOK_NUMBER) {
+ ret = tok->integer;
+ next_token(L, P, tok);
+ return ret;
+
+ } else if (tok->type == TOK_TOKEN) {
+ /* look up name in constants table */
+ push_upval(L, &constants_key);
+ lua_pushlstring(L, tok->str, tok->size);
+ lua_rawget(L, -2);
+ lua_remove(L, -2); /* constants table */
+
+ if (!lua_isnumber(L, -1)) {
+ lua_pushlstring(L, tok->str, tok->size);
+ luaL_error(L, "use of undefined constant %s on line %d", lua_tostring(L, -1), P->line);
+ }
+
+ ret = (int64_t) lua_tonumber(L, -1);
+ lua_pop(L, 1);
+ next_token(L, P, tok);
+ return ret;
+
+ } else if (tok->type == TOK_OPEN_PAREN) {
+ struct parser before_cast = *P;
+ int top = lua_gettop(L);
+
+ /* see if this is a numeric cast, which we ignore */
+ lua_pushcfunction(L, &try_cast);
+ lua_pushlightuserdata(L, P);
+ if (!lua_pcall(L, 1, 0, 0)) {
+ next_token(L, P, tok);
+ return calculate_constant2(L, P, tok);
+ }
+ lua_settop(L, top);
+
+ *P = before_cast;
+ ret = calculate_constant(L, P);
+
+ require_token(L, P, tok);
+ if (tok->type != TOK_CLOSE_PAREN) {
+ luaL_error(L, "error whilst parsing constant at line %d", P->line);
+ }
+
+ next_token(L, P, tok);
+ return ret;
+
+ } else {
+ return luaL_error(L, "unexpected token whilst parsing constant at line %d", P->line);
+ }
+}
+
+/* ! and ~, unary + and -, and sizeof */
+static int64_t calculate_constant2(lua_State* L, struct parser* P, struct token* tok)
+{
+ if (tok->type == TOK_LOGICAL_NOT) {
+ require_token(L, P, tok);
+ return !calculate_constant2(L, P, tok);
+
+ } else if (tok->type == TOK_BITWISE_NOT) {
+ require_token(L, P, tok);
+ return ~calculate_constant2(L, P, tok);
+
+ } else if (tok->type == TOK_PLUS) {
+ require_token(L, P, tok);
+ return calculate_constant2(L, P, tok);
+
+ } else if (tok->type == TOK_MINUS) {
+ require_token(L, P, tok);
+ return -calculate_constant2(L, P, tok);
+
+ } else if (tok->type == TOK_TOKEN &&
+ (IS_LITERAL(*tok, "sizeof")
+ || IS_LITERAL(*tok, "alignof")
+ || IS_LITERAL(*tok, "__alignof__")
+ || IS_LITERAL(*tok, "__alignof"))) {
+
+ bool issize = IS_LITERAL(*tok, "sizeof");
+ struct ctype type;
+
+ require_token(L, P, tok);
+ if (tok->type != TOK_OPEN_PAREN) {
+ luaL_error(L, "invalid sizeof at line %d", P->line);
+ }
+
+ parse_type(L, P, &type);
+ parse_argument(L, P, -1, &type, NULL, NULL);
+ lua_pop(L, 2);
+
+ require_token(L, P, tok);
+ if (tok->type != TOK_CLOSE_PAREN) {
+ luaL_error(L, "invalid sizeof at line %d", P->line);
+ }
+
+ next_token(L, P, tok);
+
+ return issize ? ctype_size(L, &type) : type.align_mask + 1;
+
+ } else {
+ return calculate_constant1(L, P, tok);
+ }
+}
+
+/* binary * / and % (left associative) */
+static int64_t calculate_constant3(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant2(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_MULTIPLY) {
+ require_token(L, P, tok);
+ left *= calculate_constant2(L, P, tok);
+
+ } else if (tok->type == TOK_DIVIDE) {
+ require_token(L, P, tok);
+ left /= calculate_constant2(L, P, tok);
+
+ } else if (tok->type == TOK_MODULUS) {
+ require_token(L, P, tok);
+ left %= calculate_constant2(L, P, tok);
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary + and - (left associative) */
+static int64_t calculate_constant4(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant3(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_PLUS) {
+ require_token(L, P, tok);
+ left += calculate_constant3(L, P, tok);
+
+ } else if (tok->type == TOK_MINUS) {
+ require_token(L, P, tok);
+ left -= calculate_constant3(L, P, tok);
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary << and >> (left associative) */
+static int64_t calculate_constant5(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant4(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_LEFT_SHIFT) {
+ require_token(L, P, tok);
+ left <<= calculate_constant4(L, P, tok);
+
+ } else if (tok->type == TOK_RIGHT_SHIFT) {
+ require_token(L, P, tok);
+ left >>= calculate_constant4(L, P, tok);
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary <, <=, >, and >= (left associative) */
+static int64_t calculate_constant6(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant5(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_LESS) {
+ require_token(L, P, tok);
+ left = (left < calculate_constant5(L, P, tok));
+
+ } else if (tok->type == TOK_LESS_EQUAL) {
+ require_token(L, P, tok);
+ left = (left <= calculate_constant5(L, P, tok));
+
+ } else if (tok->type == TOK_GREATER) {
+ require_token(L, P, tok);
+ left = (left > calculate_constant5(L, P, tok));
+
+ } else if (tok->type == TOK_GREATER_EQUAL) {
+ require_token(L, P, tok);
+ left = (left >= calculate_constant5(L, P, tok));
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary ==, != (left associative) */
+static int64_t calculate_constant7(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant6(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_EQUAL) {
+ require_token(L, P, tok);
+ left = (left == calculate_constant6(L, P, tok));
+
+ } else if (tok->type == TOK_NOT_EQUAL) {
+ require_token(L, P, tok);
+ left = (left != calculate_constant6(L, P, tok));
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary & (left associative) */
+static int64_t calculate_constant8(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant7(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_BITWISE_AND) {
+ require_token(L, P, tok);
+ left = (left & calculate_constant7(L, P, tok));
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary ^ (left associative) */
+static int64_t calculate_constant9(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant8(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_BITWISE_XOR) {
+ require_token(L, P, tok);
+ left = (left ^ calculate_constant8(L, P, tok));
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary | (left associative) */
+static int64_t calculate_constant10(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant9(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_BITWISE_OR) {
+ require_token(L, P, tok);
+ left = (left | calculate_constant9(L, P, tok));
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary && (left associative) */
+static int64_t calculate_constant11(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant10(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_LOGICAL_AND) {
+ require_token(L, P, tok);
+ left = (left && calculate_constant10(L, P, tok));
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* binary || (left associative) */
+static int64_t calculate_constant12(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant11(L, P, tok);
+
+ for (;;) {
+ if (tok->type == TOK_LOGICAL_OR) {
+ require_token(L, P, tok);
+ left = (left || calculate_constant11(L, P, tok));
+
+ } else {
+ return left;
+ }
+ }
+}
+
+/* ternary ?: (right associative) */
+static int64_t calculate_constant13(lua_State* L, struct parser* P, struct token* tok)
+{
+ int64_t left = calculate_constant12(L, P, tok);
+
+ if (tok->type == TOK_QUESTION) {
+ int64_t middle, right;
+ require_token(L, P, tok);
+ middle = calculate_constant13(L, P, tok);
+ if (tok->type != TOK_COLON) {
+ luaL_error(L, "invalid ternery (? :) in constant on line %d", P->line);
+ }
+ require_token(L, P, tok);
+ right = calculate_constant13(L, P, tok);
+ return left ? middle : right;
+
+ } else {
+ return left;
+ }
+}
+
+int64_t calculate_constant(lua_State* L, struct parser* P)
+{
+ struct token tok;
+ int64_t ret;
+ require_token(L, P, &tok);
+ ret = calculate_constant13(L, P, &tok);
+
+ if (tok.type != TOK_NIL) {
+ put_back(P);
+ }
+
+ return ret;
+}
+
+
+
+
diff --git a/plugins/MirLua/Modules/luaffi/src/pretty.lua b/plugins/MirLua/Modules/luaffi/src/pretty.lua new file mode 100644 index 0000000000..b3746d5930 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/pretty.lua @@ -0,0 +1,150 @@ +--[[
+Author: Julio Manuel Fernandez-Diaz
+Date: January 12, 2007
+(For Lua 5.1)
+
+Modified slightly by RiciLake to avoid the unnecessary table traversal in tablecount()
+
+Formats tables with cycles recursively to any depth.
+The output is returned as a string.
+References to other tables are shown as values.
+Self references are indicated.
+
+The string returned is "Lua code", which can be procesed
+(in the case in which indent is composed by spaces or "--").
+Userdata and function keys and values are shown as strings,
+which logically are exactly not equivalent to the original code.
+
+This routine can serve for pretty formating tables with
+proper indentations, apart from printing them:
+
+print(table.show(t, "t")) -- a typical use
+
+Heavily based on "Saving tables with cycles", PIL2, p. 113.
+
+Arguments:
+t is the table.
+name is the name of the table (optional)
+indent is a first indentation (optional).
+--]]
+local debug = require('debug')
+local dbg_getfenv = debug.getfenv or debug.getuservalue
+
+function table.show(t, name, indent)
+ local cart -- a container
+ local autoref -- for self references
+
+ --[[ counts the number of elements in a table
+ local function tablecount(t)
+ local n = 0
+ for _, _ in pairs(t) do n = n+1 end
+ return n
+ end
+ ]]
+ -- (RiciLake) returns true if the table is empty
+ local function isemptytable(t) return type(t) == "table" and next(t) == nil end
+
+ local function basicSerialize (o)
+ local so = tostring(o)
+ if type(o) == "function" then
+ local info = debug.getinfo(o, "S")
+ -- info.name is nil because o is not a calling level
+ if info.what == "C" then
+ return string.format("%q", so .. ", C function")
+ else
+ -- the information is defined through lines
+ return string.format("%q", so .. ", defined in (" ..
+ info.linedefined .. "-" .. info.lastlinedefined ..
+ ")" .. info.source)
+ end
+ elseif type(o) == "number" or type(o) == "boolean" then
+ return so
+ else
+ return string.format("%q", so)
+ end
+ end
+
+ local function addtocart (value, name, indent, saved, field)
+ indent = indent or ""
+ saved = saved or {}
+ field = field or name
+
+ cart = cart .. indent .. field
+
+ if type(value) == "table" then
+ if saved[value] then
+ cart = cart .. " = {}; -- " .. saved[value] .. " (self reference)\n"
+ autoref = autoref .. name .. " = " .. saved[value] .. ";\n"
+ else
+ saved[value] = name
+ --if tablecount(value) == 0 then
+ if isemptytable(value) then
+ cart = cart .. " = {};\n"
+ else
+ cart = cart .. " = {\n"
+ for k, v in pairs(value) do
+ k = basicSerialize(k)
+ local fname = string.format("%s[%s]", name, k)
+ field = string.format("[%s]", k)
+ -- three spaces between levels
+ addtocart(v, fname, indent .. " ", saved, field)
+ end
+ for k, v in pairs{env = dbg_getfenv(value), mt = debug.getmetatable(value)} do
+ k = basicSerialize(k)
+ local fname = string.format("%s[%s]", name, k)
+ field = string.format("[%s]", k)
+ -- three spaces between levels
+ addtocart(v, fname, indent .. " ", saved, field)
+ end
+ cart = cart .. indent .. "};\n"
+ end
+ end
+ elseif type(value) == "userdata" then
+ if saved[value] then
+ cart = cart .. " = " .. basicSerialize(value) .. "; -- " .. saved[value] .. " (self reference)\n"
+ autoref = autoref .. name .. " = " .. saved[value] .. ";\n"
+ else
+ saved[value] = name
+ cart = cart .. " = " .. basicSerialize(value) .. " {\n"
+ for k, v in pairs{env = dbg_getfenv(value), mt = debug.getmetatable(value)} do
+ k = basicSerialize(k)
+ local fname = string.format("%s[%s]", name, k)
+ field = string.format("[%s]", k)
+ -- three spaces between levels
+ addtocart(v, fname, indent .. " ", saved, field)
+ end
+ cart = cart .. indent .. "};\n"
+ end
+ elseif type(value) == "function" then
+ cart = cart .. " = " .. basicSerialize(value)
+ if debug.getupvalue(value, 1) == nil then
+ cart = cart .. ";\n"
+ else
+ cart = cart .. " {\n"
+ local i = 1
+ while true do
+ local k, v = debug.getupvalue(value, i)
+ if k == nil and v == nil then break end
+ k = basicSerialize(i)
+ local fname = string.format("%s[%s]", name, k)
+ field = string.format("[%s]", k)
+ -- three spaces between levels
+ addtocart(v, fname, indent .. " ", saved, field)
+ i = i + 1
+ end
+ cart = cart .. indent .. "};\n"
+ end
+ else
+ cart = cart .. " = " .. basicSerialize(value) .. ";\n"
+ end
+ end
+
+ name = name or "__unnamed__"
+ if type(t) ~= "table" and type(t) ~= 'userdata' then
+ return name .. " = " .. basicSerialize(t)
+ end
+ cart, autoref = "", ""
+ addtocart(t, name, indent)
+ return cart .. autoref
+end
+
diff --git a/plugins/MirLua/Modules/luaffi/src/stdafx.cxx b/plugins/MirLua/Modules/luaffi/src/stdafx.cxx new file mode 100644 index 0000000000..7b43c3cb6c --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/stdafx.cxx @@ -0,0 +1 @@ +#include "ffi.h" diff --git a/plugins/MirLua/Modules/luaffi/src/stdafx.h b/plugins/MirLua/Modules/luaffi/src/stdafx.h new file mode 100644 index 0000000000..0c93d400cc --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/stdafx.h @@ -0,0 +1,14 @@ +#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#include <windows.h>
+
+# include <lua.hpp>
+
+#include <m_core.h>
+#include <m_utils.h>
+
+#include "ffi.h"
+
+
+#endif //_COMMON_H_
\ No newline at end of file diff --git a/plugins/MirLua/Modules/luaffi/src/test.c b/plugins/MirLua/Modules/luaffi/src/test.c new file mode 100644 index 0000000000..fa9eed7b1d --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/test.c @@ -0,0 +1,677 @@ +/* vim: ts=4 sw=4 sts=4 et tw=78
+ * Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdarg.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <errno.h>
+#endif
+
+#if __STDC_VERSION__+0 >= 199901L
+#include <complex.h>
+#define HAVE_COMPLEX
+#endif
+
+#ifdef __cplusplus
+# define EXTERN_C extern "C"
+#else
+# define EXTERN_C extern
+#endif
+
+#ifdef _WIN32
+#define EXPORT EXTERN_C __declspec(dllexport)
+#elif defined __GNUC__
+#define EXPORT EXTERN_C __attribute__((visibility("default")))
+#else
+#define EXPORT EXTERN_C
+#endif
+
+enum e8 {
+ FOO8,
+ BAR8,
+};
+enum e16 {
+ FOO16 = 1 << 8,
+ BAR16,
+ BIG16 = 1 << 14,
+};
+enum e32 {
+ FOO32 = 1 << 16,
+ BAR32,
+ BIG32 = 1 << 30,
+};
+
+EXPORT bool have_complex();
+
+bool have_complex()
+{
+#ifdef HAVE_COMPLEX
+ return 1;
+#else
+ return 0;
+#endif
+}
+
+EXPORT bool is_msvc;
+
+bool is_msvc =
+#ifdef _MSC_VER
+ 1;
+#else
+ 0;
+#endif
+
+EXPORT int test_pow(int v);
+int test_pow(int v)
+{ return v * v; }
+
+#define ADD(TYPE, NAME) \
+ EXPORT TYPE NAME(TYPE a, TYPE b); \
+ TYPE NAME(TYPE a, TYPE b) { return a + b; }
+
+ADD(int8_t, add_i8)
+ADD(uint8_t, add_u8)
+ADD(int16_t, add_i16)
+ADD(uint16_t, add_u16)
+ADD(int32_t, add_i32)
+ADD(uint32_t, add_u32)
+ADD(int64_t, add_i64)
+ADD(uint64_t, add_u64)
+ADD(double, add_d)
+ADD(float, add_f)
+#ifdef HAVE_COMPLEX
+ADD(double complex, add_dc)
+ADD(float complex, add_fc)
+#endif
+
+EXPORT enum e8 inc_e8(enum e8 v);
+EXPORT enum e16 inc_e16(enum e16 v);
+EXPORT enum e32 inc_e32(enum e32 v);
+enum e8 inc_e8(enum e8 v) {return v+1;}
+enum e16 inc_e16(enum e16 v) {return v+1;}
+enum e32 inc_e32(enum e32 v) {return v+1;}
+
+EXPORT _Bool not_b(_Bool v);
+EXPORT _Bool not_b2(_Bool v);
+
+_Bool not_b(_Bool v) {return !v;}
+_Bool not_b2(_Bool v) {return !v;}
+
+#define PRINT(TYPE, NAME, FORMAT) \
+ EXPORT int NAME(char* buf, TYPE val); \
+ int NAME(char* buf, TYPE val) {return sprintf(buf, "%" FORMAT, val);}
+
+PRINT(int8_t, print_i8, PRId8)
+PRINT(uint8_t, print_u8, PRIu8)
+PRINT(int16_t, print_i16, PRId16)
+PRINT(uint16_t, print_u16, PRIu16)
+PRINT(int32_t, print_i32, PRId32)
+PRINT(uint32_t, print_u32, PRIu32)
+PRINT(int64_t, print_i64, PRId64)
+PRINT(uint64_t, print_u64, PRIu64)
+PRINT(double, print_d, "g")
+PRINT(float, print_f, "g")
+PRINT(const char*, print_s, "s")
+PRINT(void*, print_p, "p")
+PRINT(enum e8, print_e8, "d")
+PRINT(enum e16, print_e16, "d")
+PRINT(enum e32, print_e32, "d")
+
+#ifdef HAVE_COMPLEX
+EXPORT int print_dc(char* buf, double complex val);
+EXPORT int print_fc(char* buf, float complex val);
+int print_dc(char* buf, double complex val) {return sprintf(buf, "%g+%gi", creal(val), cimag(val));}
+int print_fc(char* buf, float complex val) {return sprintf(buf, "%g+%gi", creal(val), cimag(val));}
+#endif
+
+EXPORT int print_b(char* buf, _Bool val);
+EXPORT int print_b2(char* buf, _Bool val);
+int print_b(char* buf, _Bool val) {return sprintf(buf, "%s", val ? "true" : "false");}
+int print_b2(char* buf, _Bool val) {return sprintf(buf, "%s", val ? "true" : "false");}
+
+EXPORT bool (*ret_fp(bool (*val)(bool)))(bool);
+bool (*ret_fp(bool (*val)(bool)))(bool)
+{return val;}
+
+#define OFFSETOF(STRUCT, MEMBER) ((int) ((char*) &STRUCT.MEMBER - (char*) &S - 1))
+
+#define ALIGN_UP(VALUE, ALIGNMENT, SUFFIX) \
+ struct align_##ALIGNMENT##_##SUFFIX { \
+ char pad; \
+ VALUE; \
+ }; \
+ EXPORT int print_align_##ALIGNMENT##_##SUFFIX(char* buf, struct align_##ALIGNMENT##_##SUFFIX* p); \
+ int print_align_##ALIGNMENT##_##SUFFIX(char* buf, struct align_##ALIGNMENT##_##SUFFIX* p) { \
+ struct {char ch; struct align_##ALIGNMENT##_##SUFFIX v;} s; \
+ int off = sprintf(buf, "size %d offset %d align %d value ", \
+ (int) sizeof(s.v), \
+ (int) (((char*) &p->v) - (char*) p), \
+ (int) (((char*) &s.v) - (char*) &s)); \
+ return print_##SUFFIX(buf+off, p->v); \
+ }
+
+#ifdef HAVE_COMPLEX
+#define COMPLEX_ALIGN(ALIGNMENT, ATTR) \
+ ALIGN_UP(ATTR(double complex), ALIGNMENT, dc) \
+ ALIGN_UP(ATTR(float complex), ALIGNMENT, fc)
+#else
+#define COMPLEX_ALIGN(ALIGNMENT, ATTR)
+#endif
+
+/* MSVC doesn't support __declspec(aligned(#)) on enums see C4329 */
+#define ENUM_ALIGN2(ALIGNMENT, ATTR) \
+ ALIGN_UP(ATTR(enum e8), ALIGNMENT, e8) \
+ ALIGN_UP(ATTR(enum e16), ALIGNMENT, e16) \
+ ALIGN_UP(ATTR(enum e32), ALIGNMENT, e32) \
+
+#ifdef _MSC_VER
+#define ENUM_ALIGN(ALIGNMENT, ATTR)
+#else
+#define ENUM_ALIGN(ALIGNMENT, ATTR) ENUM_ALIGN2(ALIGNMENT, ATTR)
+#endif
+
+#define ALIGN2(ALIGNMENT, ATTR) \
+ ALIGN_UP(ATTR(uint16_t), ALIGNMENT, u16) \
+ ALIGN_UP(ATTR(uint32_t), ALIGNMENT, u32) \
+ ALIGN_UP(ATTR(uint64_t), ALIGNMENT, u64) \
+ ALIGN_UP(ATTR(float), ALIGNMENT, f) \
+ ALIGN_UP(ATTR(double), ALIGNMENT, d) \
+ ALIGN_UP(ATTR(const char*), ALIGNMENT, s) \
+ ALIGN_UP(ATTR(void*), ALIGNMENT, p) \
+ ALIGN_UP(ATTR(_Bool), ALIGNMENT, b) \
+ ALIGN_UP(ATTR(_Bool), ALIGNMENT, b2) \
+ ENUM_ALIGN(ALIGNMENT, ATTR) \
+ COMPLEX_ALIGN(ALIGNMENT, ATTR)
+
+#define NO_ATTR(TYPE) TYPE v
+
+#ifdef _MSC_VER
+#define ALIGN_NO_ATTR(ALIGNMENT) \
+ ALIGN2(ALIGNMENT, NO_ATTR) \
+ ENUM_ALIGN2(ALIGNMENT, NO_ATTR)
+#else
+#define ALIGN_NO_ATTR(ALIGNMENT) \
+ ALIGN2(ALIGNMENT, NO_ATTR)
+#endif
+
+ALIGN_NO_ATTR(0)
+
+#pragma pack(push)
+#pragma pack(1)
+ALIGN_NO_ATTR(1)
+#pragma pack(2)
+ALIGN_NO_ATTR(2)
+#pragma pack(4)
+ALIGN_NO_ATTR(4)
+#pragma pack(8)
+ALIGN_NO_ATTR(8)
+#pragma pack(16)
+ALIGN_NO_ATTR(16)
+#pragma pack(pop)
+
+#ifdef _MSC_VER
+#define ATTR_(TYPE, ALIGN) __declspec(align(ALIGN)) TYPE v
+#else
+#define ATTR_(TYPE, ALIGN) TYPE v __attribute__((aligned(ALIGN)))
+#endif
+
+#define ATTR1(TYPE) ATTR_(TYPE, 1)
+#define ATTR2(TYPE) ATTR_(TYPE, 2)
+#define ATTR4(TYPE) ATTR_(TYPE, 4)
+#define ATTR8(TYPE) ATTR_(TYPE, 8)
+#define ATTR16(TYPE) ATTR_(TYPE, 16)
+
+#define ATTR_DEF(TYPE) TYPE v __attribute__((aligned))
+
+ALIGN2(attr_1, ATTR1)
+ALIGN2(attr_2, ATTR2)
+ALIGN2(attr_4, ATTR4)
+ALIGN2(attr_8, ATTR8)
+ALIGN2(attr_16, ATTR16)
+
+#ifndef _MSC_VER
+ALIGN2(attr_def, ATTR_DEF)
+#endif
+
+#ifdef _MSC_VER
+#define alignof(type) __alignof(type)
+#else
+#define alignof(type) __alignof__(type)
+#endif
+
+EXPORT int max_alignment();
+
+int max_alignment()
+{ return alignof(struct align_attr_16_p); }
+
+/* bit_fields1.cpp */
+/* compile with: /LD */
+struct Date {
+ unsigned short nWeekDay : 3; /* 0..7 (3 bits) */
+ unsigned short nMonthDay : 6; /* 0..31 (6 bits) */
+ unsigned short nMonth : 5; /* 0..12 (5 bits) */
+ unsigned short nYear : 8; /* 0..100 (8 bits) */
+};
+
+EXPORT int print_date(size_t* sz, size_t* align, char* buf, struct Date* d);
+
+int print_date(size_t* sz, size_t* align, char* buf, struct Date* d) {
+ *sz = sizeof(struct Date);
+ *align = alignof(struct Date);
+ return sprintf(buf, "%d %d %d %d", d->nWeekDay, d->nMonthDay, d->nMonth, d->nYear);
+}
+
+/* bit_fields2.cpp */
+/* compile with: /LD */
+struct Date2 {
+ unsigned nWeekDay : 3; /* 0..7 (3 bits) */
+ unsigned nMonthDay : 6; /* 0..31 (6 bits) */
+ unsigned : 0; /* Force alignment to next boundary. */
+ unsigned nMonth : 5; /* 0..12 (5 bits) */
+ unsigned nYear : 8; /* 0..100 (8 bits) */
+};
+
+EXPORT int print_date2(size_t* sz, size_t* align, char* buf, struct Date2* d);
+
+int print_date2(size_t* sz, size_t* align, char* buf, struct Date2* d) {
+ *sz = sizeof(struct Date2);
+ *align = alignof(struct Date2);
+ return sprintf(buf, "%d %d %d %d", d->nWeekDay, d->nMonthDay, d->nMonth, d->nYear);
+}
+
+// Examples from SysV X86 ABI
+struct sysv1 {
+ int j:5;
+ int k:6;
+ int m:7;
+};
+
+EXPORT int print_sysv1(size_t* sz, size_t* align, char* buf, struct sysv1* s);
+
+int print_sysv1(size_t* sz, size_t* align, char* buf, struct sysv1* s) {
+ *sz = sizeof(struct sysv1);
+ *align = alignof(struct sysv1);
+ return sprintf(buf, "%d %d %d", s->j, s->k, s->m);
+}
+
+struct sysv2 {
+ short s:9;
+ int j:9;
+ char c;
+ short t:9;
+ short u:9;
+ char d;
+};
+
+EXPORT int print_sysv2(size_t* sz, size_t* align, char* buf, struct sysv2* s);
+
+int print_sysv2(size_t* sz, size_t* align, char* buf, struct sysv2* s) {
+ *sz = sizeof(struct sysv2);
+ *align = alignof(struct sysv2);
+ return sprintf(buf, "%d %d %d %d %d %d", s->s, s->j, s->c, s->t, s->u, s->d);
+}
+
+struct sysv3 {
+ char c;
+ short s:8;
+};
+
+EXPORT int print_sysv3(size_t* sz, size_t* align, char* buf, struct sysv3* s);
+
+int print_sysv3(size_t* sz, size_t* align, char* buf, struct sysv3* s) {
+ *sz = sizeof(struct sysv3);
+ *align = alignof(struct sysv3);
+ return sprintf(buf, "%d %d", s->c, s->s);
+}
+
+union sysv4 {
+ char c;
+ short s:8;
+};
+
+EXPORT int print_sysv4(size_t* sz, size_t* align, char* buf, union sysv4* s);
+
+int print_sysv4(size_t* sz, size_t* align, char* buf, union sysv4* s) {
+ *sz = sizeof(union sysv4);
+ *align = alignof(union sysv4);
+ return sprintf(buf, "%d", s->s);
+}
+
+struct sysv5 {
+ char c;
+ int :0;
+ char d;
+ short :9;
+ char e;
+ char :0;
+};
+
+EXPORT int print_sysv5(size_t* sz, size_t* align, char* buf, struct sysv5* s);
+
+int print_sysv5(size_t* sz, size_t* align, char* buf, struct sysv5* s) {
+ *sz = sizeof(struct sysv5);
+ *align = alignof(struct sysv5);
+ return sprintf(buf, "%d %d %d", s->c, s->d, s->e);
+}
+
+struct sysv6 {
+ char c;
+ int :0;
+ char d;
+ int :9;
+ char e;
+};
+
+EXPORT int print_sysv6(size_t* sz, size_t* align, char* buf, struct sysv6* s);
+
+int print_sysv6(size_t* sz, size_t* align, char* buf, struct sysv6* s) {
+ *sz = sizeof(struct sysv6);
+ *align = alignof(struct sysv6);
+ return sprintf(buf, "%d %d %d", s->c, s->d, s->e);
+}
+
+struct sysv7 {
+ int j:9;
+ short s:9;
+ char c;
+ short t:9;
+ short u:9;
+};
+
+EXPORT int print_sysv7(size_t* sz, size_t* align, char* buf, struct sysv7* s);
+
+int print_sysv7(size_t* sz, size_t* align, char* buf, struct sysv7* s) {
+ *sz = sizeof(struct sysv7);
+ *align = alignof(struct sysv7);
+ return sprintf(buf, "%d %d %d %d %d", s->j, s->s, s->c, s->t, s->u);
+}
+
+/* Now some targeting bitfield tests */
+
+/* Bitfield alignment */
+#define BITALIGN(TNUM,BNUM) \
+ struct ba_##TNUM##_##BNUM { \
+ char a; \
+ uint##TNUM##_t b : BNUM; \
+ }; \
+ EXPORT int print_ba_##TNUM##_##BNUM(size_t* sz, size_t* align, char* buf, struct ba_##TNUM##_##BNUM* s); \
+ int print_ba_##TNUM##_##BNUM(size_t* sz, size_t* align, char* buf, struct ba_##TNUM##_##BNUM* s) { \
+ *sz = sizeof(struct ba_##TNUM##_##BNUM); \
+ *align = alignof(struct ba_##TNUM##_##BNUM); \
+ return sprintf(buf, "%d %d", (int) s->a, (int) s->b); \
+ }
+
+BITALIGN(8,7)
+BITALIGN(16,7)
+BITALIGN(16,15)
+BITALIGN(32,7)
+BITALIGN(32,15)
+BITALIGN(32,31)
+BITALIGN(64,7)
+BITALIGN(64,15)
+BITALIGN(64,31)
+BITALIGN(64,63)
+
+/* Do unsigned and signed coallesce */
+#define BITCOALESCE(NUM) \
+ struct bc##NUM { \
+ uint##NUM##_t a : 3; \
+ int##NUM##_t b : 3; \
+ }; \
+ EXPORT int print_bc##NUM(size_t* sz, size_t* align, char* buf, struct bc##NUM* s); \
+ int print_bc##NUM(size_t* sz, size_t* align, char* buf, struct bc##NUM* s) { \
+ *sz = sizeof(struct bc##NUM); \
+ *align = alignof(struct bc##NUM); \
+ return sprintf(buf, "%d %d", (int) s->a, (int) s->b); \
+ }
+
+BITCOALESCE(8)
+BITCOALESCE(16)
+BITCOALESCE(32)
+BITCOALESCE(64)
+
+// Do different sizes coallesce
+struct bdsz {
+ uint8_t a : 3;
+ uint16_t b : 3;
+ uint32_t c : 3;
+ uint64_t d : 3;
+};
+
+EXPORT int print_bdsz(size_t* sz, size_t* align, char* buf, struct bdsz* s);
+int print_bdsz(size_t* sz, size_t* align, char* buf, struct bdsz* s) {
+ *sz = sizeof(struct bdsz);
+ *align = alignof(struct bdsz);
+ return sprintf(buf, "%d %d %d %d", (int) s->a, (int) s->b, (int) s->c, (int) s->d);
+}
+
+// Does coallesence upgrade the storage unit
+struct bcup {
+ uint8_t a : 7;
+ uint16_t b : 9;
+ uint32_t c : 17;
+ uint64_t d : 33;
+};
+
+EXPORT int print_bcup(size_t* sz, size_t* align, char* buf, struct bcup* s);
+int print_bcup(size_t* sz, size_t* align, char* buf, struct bcup* s) {
+ *sz = sizeof(struct bcup);
+ *align = alignof(struct bcup);
+ return sprintf(buf, "%d %d %d %"PRIu64, (int) s->a, (int) s->b, (int) s->c, (uint64_t) s->d);
+}
+
+// Is unaligned access allowed
+struct buna {
+ uint32_t a : 31;
+ uint32_t b : 31;
+};
+
+EXPORT int print_buna(size_t* sz, size_t* align, char* buf, struct buna* s);
+int print_buna(size_t* sz, size_t* align, char* buf, struct buna* s) {
+ *sz = sizeof(struct buna);
+ *align = alignof(struct buna);
+ return sprintf(buf, "%d %d", (int) s->a, (int) s->b);
+}
+
+/* What does a lone :0 do */
+#define BITLONEZERO(NUM) \
+ struct blz##NUM { \
+ uint##NUM##_t a; \
+ uint##NUM##_t :0; \
+ uint##NUM##_t b; \
+ }; \
+ EXPORT int print_##blz##NUM(size_t* sz, size_t* align, char* buf, struct blz##NUM* s); \
+ int print_blz##NUM(size_t* sz, size_t* align, char* buf, struct blz##NUM* s) { \
+ *sz = sizeof(struct blz##NUM); \
+ *align = alignof(struct blz##NUM); \
+ return sprintf(buf, "%d %d", (int) s->a, (int) s->b); \
+ }
+
+BITLONEZERO(8)
+BITLONEZERO(16)
+BITLONEZERO(32)
+BITLONEZERO(64)
+
+/* What does a :0 or unnamed :# of the same or different type do */
+#define BITZERO(NUM, ZNUM, BNUM) \
+ struct bz_##NUM##_##ZNUM##_##BNUM { \
+ uint8_t a; \
+ uint##NUM##_t b : 3; \
+ uint##ZNUM##_t :BNUM; \
+ uint##NUM##_t c : 3; \
+ }; \
+ EXPORT int print_bz_##NUM##_##ZNUM##_##BNUM(size_t* sz, size_t* align, char* buf, struct bz_##NUM##_##ZNUM##_##BNUM* s); \
+ int print_bz_##NUM##_##ZNUM##_##BNUM(size_t* sz, size_t* align, char* buf, struct bz_##NUM##_##ZNUM##_##BNUM* s) { \
+ *sz = sizeof(struct bz_##NUM##_##ZNUM##_##BNUM); \
+ *align = alignof(struct bz_##NUM##_##ZNUM##_##BNUM); \
+ return sprintf(buf, "%d %d %d", (int) s->a, (int) s->b, (int) s->c); \
+ }
+
+BITZERO(8,8,0)
+BITZERO(8,8,7)
+BITZERO(8,16,0)
+BITZERO(8,16,7)
+BITZERO(8,16,15)
+BITZERO(8,32,0)
+BITZERO(8,32,7)
+BITZERO(8,32,15)
+BITZERO(8,32,31)
+BITZERO(8,64,0)
+BITZERO(8,64,7)
+BITZERO(8,64,15)
+BITZERO(8,64,31)
+BITZERO(8,64,63)
+BITZERO(16,8,0)
+BITZERO(16,8,7)
+BITZERO(16,16,0)
+BITZERO(16,16,7)
+BITZERO(16,16,15)
+BITZERO(16,32,0)
+BITZERO(16,32,7)
+BITZERO(16,32,15)
+BITZERO(16,32,31)
+BITZERO(16,64,0)
+BITZERO(16,64,7)
+BITZERO(16,64,15)
+BITZERO(16,64,31)
+BITZERO(16,64,63)
+BITZERO(32,8,0)
+BITZERO(32,8,7)
+BITZERO(32,16,0)
+BITZERO(32,16,7)
+BITZERO(32,16,15)
+BITZERO(32,32,0)
+BITZERO(32,32,7)
+BITZERO(32,32,15)
+BITZERO(32,32,31)
+BITZERO(32,64,0)
+BITZERO(32,64,7)
+BITZERO(32,64,15)
+BITZERO(32,64,31)
+BITZERO(32,64,63)
+BITZERO(64,8,0)
+BITZERO(64,8,7)
+BITZERO(64,16,0)
+BITZERO(64,16,7)
+BITZERO(64,16,15)
+BITZERO(64,32,0)
+BITZERO(64,32,7)
+BITZERO(64,32,15)
+BITZERO(64,32,31)
+BITZERO(64,64,0)
+BITZERO(64,64,7)
+BITZERO(64,64,15)
+BITZERO(64,64,31)
+BITZERO(64,64,63)
+
+#define CALL(TYPE, SUFFIX) \
+ EXPORT TYPE call_##SUFFIX(TYPE (*func)(TYPE), TYPE arg); \
+ TYPE call_##SUFFIX(TYPE (*func)(TYPE), TYPE arg) { \
+ return func(arg); \
+ }
+
+CALL(int, i)
+CALL(float, f)
+CALL(double, d)
+CALL(const char*, s)
+CALL(_Bool, b)
+CALL(enum e8, e8)
+CALL(enum e16, e16)
+CALL(enum e32, e32)
+#ifdef HAVE_COMPLEX
+CALL(double complex, dc)
+CALL(float complex, fc)
+#endif
+
+struct fptr {
+#ifdef _MSC_VER
+ int (__cdecl *p)(int);
+#else
+ int (*p)(int);
+#endif
+};
+
+EXPORT int call_fptr(struct fptr* s, int val);
+
+int call_fptr(struct fptr* s, int val) {
+ return (s->p)(val);
+}
+
+EXPORT bool g_b;
+EXPORT int8_t g_i8;
+EXPORT int16_t g_i16;
+EXPORT int32_t g_i32;
+EXPORT int64_t g_i64;
+EXPORT uint8_t g_u8;
+EXPORT uint16_t g_u16;
+EXPORT uint32_t g_u32;
+EXPORT uint64_t g_u64;
+EXPORT float g_f;
+EXPORT double g_d;
+#ifdef HAVE_COMPLEX
+EXPORT double complex g_dc;
+EXPORT float complex g_fc;
+#endif
+EXPORT bool (*g_fp)(bool);
+EXPORT const char g_s[];
+EXPORT const char* g_sp;
+EXPORT void* g_p;
+EXPORT enum e8 g_e8;
+EXPORT enum e16 g_e16;
+EXPORT enum e32 g_e32;
+EXPORT struct Date g_date;
+
+bool g_b = true;
+int8_t g_i8 = -8;
+int16_t g_i16 = -16;
+int32_t g_i32 = -32;
+int64_t g_i64 = -64;
+uint8_t g_u8 = 8;
+uint16_t g_u16 = 16;
+uint32_t g_u32 = 32;
+uint64_t g_u64 = 64;
+float g_f = 3;
+double g_d = 5;
+#ifdef HAVE_COMPLEX
+double complex g_dc = 7+8i;
+float complex g_fc = 6+9i;
+#endif
+bool (*g_fp)(bool) = ¬_b;
+void* g_p = (void*) ¬_b;
+const char g_s[] = "g_s";
+const char* g_sp = "g_sp";
+enum e8 g_e8 = FOO8;
+enum e16 g_e16 = FOO16;
+enum e32 g_e32 = FOO32;
+struct Date g_date = {1,2,3,4};
+
+EXPORT void set_errno(int val);
+EXPORT int get_errno(void);
+
+void set_errno(int val) {
+#ifdef _WIN32
+ SetLastError(val);
+#else
+ errno = val;
+#endif
+}
+
+int get_errno(void) {
+#ifdef _WIN32
+ return GetLastError();
+#else
+ return errno;
+#endif
+}
+
+EXPORT int va_list_size, va_list_align;
+int va_list_size = sizeof(va_list);
+int va_list_align = alignof(va_list);
+
diff --git a/plugins/MirLua/Modules/luaffi/src/test.lua b/plugins/MirLua/Modules/luaffi/src/test.lua new file mode 100644 index 0000000000..cc66a8b924 --- /dev/null +++ b/plugins/MirLua/Modules/luaffi/src/test.lua @@ -0,0 +1,871 @@ +-- vim: ts=4 sw=4 sts=4 et tw=78
+-- Copyright (c) 2011 James R. McKaskill. See license in ffi.h
+
+io.stdout:setvbuf('no')
+local ffi = require 'ffi'
+local dlls = {}
+
+dlls.__cdecl = ffi.load('test_cdecl')
+
+if ffi.arch == 'x86' and ffi.os == 'Windows' then
+ dlls.__stdcall = ffi.load('test_stdcall')
+ dlls.__fastcall = ffi.load('test_fastcall')
+end
+
+local function check(a, b)
+ if a ~= b then
+ print('check', a, b)
+ end
+ return _G.assert(a == b)
+end
+
+print('Running test')
+
+ffi.cdef [[
+enum e8 {
+ FOO8,
+ BAR8,
+};
+enum e16 {
+ FOO16 = 1 << 8,
+ BAR16,
+ BIG16 = 1 << 14,
+};
+enum e32 {
+ FOO32 = 1 << 16,
+ BAR32,
+ BIG32 = 1 << 30,
+};
+int max_alignment();
+bool is_msvc, is_msvc2 __asm__("is_msvc");
+bool have_complex(void);
+bool have_complex2() __asm__("have" /*foo*/ "\x5F" "complex"); // 5F is _
+
+int8_t add_i8(int8_t a, int8_t b);
+uint8_t add_u8(uint8_t a, uint8_t b);
+int16_t add_i16(int16_t a, int16_t b);
+uint16_t add_i16(uint16_t a, uint16_t b);
+int32_t add_i32(int32_t a, int32_t b);
+uint32_t add_u32(uint32_t a, uint32_t b);
+int64_t add_i64(int64_t a, int64_t b);
+uint64_t add_u64(uint64_t a, uint64_t b);
+double add_d(double a, double b);
+float add_f(float a, float b);
+double complex add_dc(double complex a, double complex b);
+float complex add_fc(float complex a, float complex b);
+enum e8 inc_e8(enum e8);
+enum e16 inc_e16(enum e16);
+enum e32 inc_e32(enum e32);
+bool not_b(bool v);
+_Bool not_b2(_Bool v);
+typedef bool (*fp)(bool);
+fp ret_fp(fp v);
+bool (*ret_fp2(bool (*)(bool)))(bool) __asm("ret_fp");
+
+int print_i8(char* buf, int8_t val);
+int print_u8(char* buf, uint8_t val);
+int print_i16(char* buf, int16_t val);
+int print_u16(char* buf, uint16_t val);
+int print_i32(char* buf, int32_t val);
+int print_u32(char* buf, uint32_t val);
+int print_i64(char* buf, int64_t val);
+int print_u64(char* buf, uint64_t val);
+int print_s(char* buf, const char* val);
+int print_b(char* buf, bool val);
+int print_b2(char* buf, _Bool val);
+int print_d(char* buf, double val);
+int print_f(char* buf, float val);
+int print_p(char* buf, void* val);
+int print_dc(char* buf, double complex val);
+int print_fc(char* buf, float complex val);
+int print_e8(char* buf, enum e8 val);
+int print_e16(char* buf, enum e16 val);
+int print_e32(char* buf, enum e32 val);
+int sprintf(char* buf, const char* format, ...);
+
+// Examples from MSDN
+
+// bit_fields1.cpp
+// compile with: /LD
+struct Date {
+ unsigned short nWeekDay : 3; // 0..7 (3 bits)
+ unsigned short nMonthDay : 6; // 0..31 (6 bits)
+ unsigned short nMonth : 5; // 0..12 (5 bits)
+ unsigned short nYear : 8; // 0..100 (8 bits)
+};
+
+// bit_fields2.cpp
+// compile with: /LD
+struct Date2 {
+ unsigned nWeekDay : 3; // 0..7 (3 bits)
+ unsigned nMonthDay : 6; // 0..31 (6 bits)
+ unsigned : 0; // Force alignment to next boundary.
+ unsigned nMonth : 5; // 0..12 (5 bits)
+ unsigned nYear : 8; // 0..100 (8 bits)
+};
+
+// For checking the alignment of short bitfields
+struct Date3 {
+ char pad;
+ unsigned short nWeekDay : 3; // 0..7 (3 bits)
+ unsigned short nMonthDay : 6; // 0..31 (6 bits)
+ unsigned short nMonth : 5; // 0..12 (5 bits)
+ unsigned short nYear : 8; // 0..100 (8 bits)
+};
+
+// For checking the alignment and container of int64 bitfields
+struct bit64 {
+ char pad;
+ uint64_t a : 15;
+ uint64_t b : 14;
+ uint64_t c : 13;
+ uint64_t d : 12;
+};
+
+// Examples from SysV X86 ABI
+struct sysv1 {
+ int j:5;
+ int k:6;
+ int m:7;
+};
+
+struct sysv2 {
+ short s:9;
+ int j:9;
+ char c;
+ short t:9;
+ short u:9;
+ char d;
+};
+
+struct sysv3 {
+ char c;
+ short s:8;
+};
+
+union sysv4 {
+ char c;
+ short s:8;
+};
+
+struct sysv5 {
+ char c;
+ int :0;
+ char d;
+ short :9;
+ char e;
+ char :0;
+};
+
+struct sysv6 {
+ char c;
+ int :0;
+ char d;
+ int :9;
+ char e;
+};
+
+struct sysv7 {
+ int j:9;
+ short s:9;
+ char c;
+ short t:9;
+ short u:9;
+};
+
+int print_date(size_t* sz, size_t* align, char* buf, struct Date* s);
+int print_date2(size_t* sz, size_t* align, char* buf, struct Date2* s);
+int print_date3(size_t* sz, size_t* align, char* buf, struct Date3* d);
+int print_bit64(size_t* sz, size_t* align, char* buf, struct bit64* d);
+int print_sysv1(size_t* sz, size_t* align, char* buf, struct sysv1* s);
+int print_sysv2(size_t* sz, size_t* align, char* buf, struct sysv2* s);
+int print_sysv3(size_t* sz, size_t* align, char* buf, struct sysv3* s);
+int print_sysv4(size_t* sz, size_t* align, char* buf, union sysv4* s);
+int print_sysv5(size_t* sz, size_t* align, char* buf, struct sysv5* s);
+int print_sysv6(size_t* sz, size_t* align, char* buf, struct sysv6* s);
+int print_sysv7(size_t* sz, size_t* align, char* buf, struct sysv7* s);
+
+struct fptr {
+ int (__cdecl *p)(int);
+};
+int call_fptr(struct fptr* s, int val);
+
+bool g_b;
+int8_t g_i8;
+int16_t g_i16;
+int32_t g_i32;
+int64_t g_i64;
+uint8_t g_u8;
+uint16_t g_u16;
+uint32_t g_u32;
+uint64_t g_u64;
+float g_f;
+double g_d;
+double complex g_dc;
+float complex g_fc;
+bool (*g_fp)(bool);
+const char g_s[];
+const char* g_sp;
+void* g_p;
+enum e8 g_e8;
+enum e16 g_e16;
+enum e32 g_e32;
+struct Date g_date;
+
+void set_errno(int val);
+int get_errno(void);
+]]
+
+local align = [[
+struct align_ALIGN_SUFFIX {
+ char pad;
+ TYPE v;
+};
+
+int print_align_ALIGN_SUFFIX(char* buf, struct align_ALIGN_SUFFIX* p);
+]]
+
+local palign = [[
+#pragma pack(push)
+#pragma pack(ALIGN)
+]] .. align .. [[
+#pragma pack(pop)
+]]
+
+local bitfields = [[
+struct bcTNUM {
+ uintTNUM_t a : 3;
+ intTNUM_t b : 3;
+};
+struct blzTNUM {
+ uintTNUM_t a;
+ uintTNUM_t :0;
+ uintTNUM_t b;
+};
+int print_bcTNUM(size_t* sz, size_t* align, char* buf, struct bcTNUM* s);
+int print_blzTNUM(size_t* sz, size_t* align, char* buf, struct blzTNUM* s);
+]]
+
+local bitalign = [[
+struct ba_TNUM_BNUM {
+ char a;
+ uintTNUM_t b : BNUM;
+};
+struct bu_TNUM_BNUM {
+ char a;
+ uintTNUM_t :BNUM;
+ char b;
+};
+int print_ba_TNUM_BNUM(size_t* sz, size_t* align, char* buf, struct ba_TNUM_BNUM* s);
+]]
+
+local bitzero = [[
+struct bz_TNUM_ZNUM_BNUM {
+ uint8_t a;
+ uintTNUM_t b : 3;
+ uintZNUM_t :BNUM;
+ uintTNUM_t c : 3;
+};
+int print_bz_TNUM_ZNUM_BNUM(size_t* sz, size_t* align, char* buf, struct bz_TNUM_ZNUM_BNUM* s);
+]]
+
+local i = ffi.C.i
+local test_values = {
+ ['void*'] = ffi.new('char[3]'),
+ ['const char*'] = 'foo',
+ float = 3.4,
+ double = 5.6,
+ uint16_t = 65000,
+ uint32_t = ffi.new('uint32_t', 700000056),
+ uint64_t = 12345678901234,
+ bool = true,
+ _Bool = false,
+ ['float complex'] = 3+4*i,
+ ['double complex'] = 5+6*i,
+ ['enum e8'] = ffi.C.FOO8,
+ ['enum e16'] = ffi.C.FOO16,
+ ['enum e32'] = ffi.C.FOO32,
+}
+
+local types = {
+ b = 'bool',
+ b2 = '_Bool',
+ d = 'double',
+ f = 'float',
+ u64 = 'uint64_t',
+ u32 = 'uint32_t',
+ u16 = 'uint16_t',
+ s = 'const char*',
+ p = 'void*',
+ e8 = 'enum e8',
+ e16 = 'enum e16',
+ e32 = 'enum e32',
+}
+
+local buf = ffi.new('char[256]')
+
+local function checkbuf(type, ret)
+ local str = tostring(test_values[type]):gsub('^cdata%b<>: ', '')
+ check(ffi.string(buf), str)
+ check(ret, #str)
+end
+
+local function checkalign(type, v, ret)
+ --print(v)
+ local str = tostring(test_values[type]):gsub('^cdata%b<>: ', '')
+ check(ffi.string(buf), ('size %d offset %d align %d value %s'):format(ffi.sizeof(v), ffi.offsetof(v, 'v'), ffi.alignof(v, 'v'), str))
+ check(ret, #str)
+end
+
+local u64 = ffi.typeof('uint64_t')
+local i64 = ffi.typeof('int64_t')
+
+local first = true
+
+for convention,c in pairs(dlls) do
+ check(c.add_i8(1,1), 2)
+ check(c.add_i8(256,1), 1)
+ check(c.add_i8(127,1), -128)
+ check(c.add_i8(-120,120), 0)
+ check(c.add_u8(255,1), 0)
+ check(c.add_u8(120,120), 240)
+ check(c.add_i16(2000,4000), 6000)
+ check(c.add_d(20, 12), 32)
+ check(c.add_f(40, 32), 72)
+ check(c.not_b(true), false)
+ check(c.not_b2(false), true)
+ check(c.inc_e8(c.FOO8), c.BAR8)
+ check(c.inc_e8('FOO8'), c.BAR8)
+ check(c.inc_e16(c.FOO16), c.BAR16)
+ check(c.inc_e32(c.FOO32), c.BAR32)
+ check(c.ret_fp(c.g_fp), c.g_fp)
+ check(c.ret_fp2(c.g_fp), c.g_fp)
+
+ if c.have_complex() then
+ check(c.add_dc(3+4*i, 4+5*i), 7+9*i)
+ check(c.add_fc(2+4*i, 6+8*i), 8+12*i)
+ types.dc = 'double complex'
+ types.fc = 'float complex'
+ else
+ types.dc = nil
+ types.fc = nil
+ end
+ check((3+4*i).re, 3)
+ check((3+4*i).im, 4)
+ check(ffi.new('complex float', 2+8*i).re, 2)
+ check(ffi.new('complex float', 5+6*i).im, 6)
+
+ check(c.have_complex(), c.have_complex2())
+ check(c.is_msvc, c.is_msvc2)
+
+ check(c.g_b, true)
+ check(c.g_i8, -8)
+ check(c.g_i16, -16)
+ check(c.g_i32, -32)
+ check(c.g_i64, i64(-64))
+ check(c.g_u8, 8)
+ check(c.g_u16, 16)
+ check(c.g_u32, 32)
+ check(c.g_u64, u64(64))
+ check(c.g_f, 3)
+ check(c.g_d, 5)
+ if c.have_complex() then
+ check(c.g_dc, 7 + 8*i)
+ check(c.g_fc, 6 + 9*i)
+ end
+ check(ffi.cast('void*', c.g_fp), c.g_p)
+ check(c.g_s, 'g_s')
+ check(c.g_sp, 'g_sp')
+ check(c.g_e8, c.FOO8)
+ check(c.g_e16, c.FOO16)
+ check(c.g_e32, c.FOO32)
+ check(c.g_date.nWeekDay, 1)
+ check(c.g_date.nMonthDay, 2)
+ check(c.g_date.nMonth, 3)
+ check(c.g_date.nYear, 4)
+
+ c.g_b = false; check(c.g_b, false)
+ c.g_i8 = -108; check(c.g_i8, -108)
+ c.g_i16 = -1016; check(c.g_i16, -1016)
+ c.g_i32 = -1032; check(c.g_i32, -1032)
+ c.g_i64 = -1064; check(c.g_i64, i64(-1064))
+ c.g_u8 = 208; check(c.g_u8, 208)
+ c.g_u16 = 2016; check(c.g_u16, 2016)
+ c.g_u32 = 2032; check(c.g_u32, 2032)
+ c.g_u64 = 2064; check(c.g_u64, u64(2064))
+ c.g_f = 13; check(c.g_f, 13)
+ c.g_d = 15; check(c.g_d, 15)
+ if c.have_complex() then
+ c.g_dc = 17+18*i; check(c.g_dc, 17+18*i)
+ c.g_fc = 16+19*i; check(c.g_fc, 16+19*i)
+ end
+ c.g_sp = 'foo'; check(c.g_sp, 'foo')
+ c.g_e8 = c.BAR8; check(c.g_e8, c.BAR8)
+ c.g_e16 = c.BAR16; check(c.g_e16, c.BAR16)
+ c.g_e32 = c.BAR32; check(c.g_e32, c.BAR32)
+ c.g_date.nWeekDay = 3; check(c.g_date.nWeekDay, 3)
+
+ local align_attr = c.is_msvc and [[
+ struct align_attr_ALIGN_SUFFIX {
+ char pad;
+ __declspec(align(ALIGN)) TYPE v;
+ };
+
+ int print_align_attr_ALIGN_SUFFIX(char* buf, struct align_attr_ALIGN_SUFFIX* p);
+ ]] or [[
+ struct align_attr_ALIGN_SUFFIX {
+ char pad;
+ TYPE v __attribute__(aligned(ALIGN));
+ };
+
+ int print_align_attr_ALIGN_SUFFIX(char* buf, struct align_attr_ALIGN_SUFFIX* p);
+ ]]
+
+ for suffix, type in pairs(types) do
+ local test = test_values[type]
+ --print('checkbuf', suffix, type, buf, test)
+ checkbuf(type, c['print_' .. suffix](buf, test))
+
+ if first then
+ ffi.cdef(align:gsub('SUFFIX', suffix):gsub('TYPE', type):gsub('ALIGN', 0))
+ end
+
+ local v = ffi.new('struct align_0_' .. suffix, {0, test})
+ checkalign(type, v, c['print_align_0_' .. suffix](buf, v))
+
+ for _,align in ipairs{1,2,4,8,16} do
+ if align > c.max_alignment() then
+ break
+ end
+
+ if first then
+ ffi.cdef(palign:gsub('SUFFIX', suffix):gsub('TYPE', type):gsub('ALIGN', align))
+ ffi.cdef(align_attr:gsub('SUFFIX', suffix):gsub('TYPE', type):gsub('ALIGN', align))
+ end
+
+ local v = ffi.new('struct align_' .. align .. '_' .. suffix, {0, test})
+ checkalign(type, v, c['print_align_' .. align .. '_' .. suffix](buf, v))
+
+ -- MSVC doesn't support aligned attributes on enums
+ if not type:match('^enum e[0-9]*$') or not c.is_msvc then
+ local v2 = ffi.new('struct align_attr_' .. align .. '_' .. suffix, {0, test})
+ checkalign(type, v2, c['print_align_attr_' .. align .. '_' .. suffix](buf, v2))
+ end
+ end
+
+ if not c.is_msvc then
+ if first then
+ local h = [[
+ struct align_attr_def_SUFFIX {
+ char pad;
+ TYPE v __attribute__(aligned);
+ };
+ int print_align_attr_def_SUFFIX(char* buf, struct align_attr_def_SUFFIX* p);
+ ]]
+ ffi.cdef(h:gsub('SUFFIX', suffix):gsub('TYPE', type))
+ end
+
+ local v = ffi.new('struct align_attr_def_' .. suffix, {0, test})
+ checkalign(type, v, c['print_align_attr_def_' .. suffix](buf, v))
+ end
+ end
+
+ local psz = ffi.new('size_t[1]')
+ local palign = ffi.new('size_t[1]')
+ local function check_align(type, test, ret)
+ --print('check_align', type, test, ret, ffi.string(buf), psz[0], palign[0])
+ check(tonumber(palign[0]), ffi.alignof(type))
+ check(tonumber(psz[0]), ffi.sizeof(type))
+ check(ret, #test)
+ check(test, ffi.string(buf))
+ end
+
+ for _, tnum in ipairs{8, 16, 32, 64} do
+ if first then
+ ffi.cdef(bitfields:gsub('TNUM',tnum))
+ end
+
+ check_align('struct bc'..tnum, '1 2', c['print_bc'..tnum](psz, palign, buf, {1,2}))
+ check_align('struct blz'..tnum, '1 2', c['print_blz'..tnum](psz, palign, buf, {1,2}))
+
+ for _, znum in ipairs{8, 16, 32, 64} do
+ for _, bnum in ipairs{7, 15, 31, 63} do
+ if bnum > znum then
+ break
+ end
+ if first then
+ ffi.cdef(bitzero:gsub('TNUM',tnum):gsub('ZNUM',znum):gsub('BNUM', bnum))
+ end
+ check_align('struct bz_'..tnum..'_'..znum..'_'..bnum, '1 2 3', c['print_bz_'..tnum..'_'..znum..'_'..bnum](psz, palign, buf, {1,2,3}))
+ end
+ end
+
+ for _, bnum in ipairs{7, 15, 31, 63} do
+ if bnum > tnum then
+ break
+ end
+ if first then
+ ffi.cdef(bitalign:gsub('TNUM',tnum):gsub('BNUM',bnum))
+ end
+ check_align('struct ba_'..tnum..'_'..bnum, '1 2', c['print_ba_'..tnum..'_'..bnum](psz, palign, buf, {1,2}))
+ end
+ end
+
+ check_align('struct Date', '1 2 3 4', c.print_date(psz, palign, buf, {1,2,3,4}))
+ check_align('struct Date2', '1 2 3 4', c.print_date2(psz, palign, buf, {1,2,3,4}))
+ check_align('struct sysv1', '1 2 3', c.print_sysv1(psz, palign, buf, {1,2,3}))
+ check_align('struct sysv2', '1 2 3 4 5 6', c.print_sysv2(psz, palign, buf, {1,2,3,4,5,6}))
+ check_align('struct sysv3', '1 2', c.print_sysv3(psz, palign, buf, {1,2}))
+ check_align('union sysv4', '1', c.print_sysv4(psz, palign, buf, {1}))
+ check_align('struct sysv5', '1 2 3', c.print_sysv5(psz, palign, buf, {1,2,3}))
+ check_align('struct sysv6', '1 2 3', c.print_sysv6(psz, palign, buf, {1,2,3}))
+ check_align('struct sysv7', '1 2 3 4 5', c.print_sysv7(psz, palign, buf, {1,2,3,4,5}))
+
+ local cbs = [[
+ typedef const char* (*__cdecl sfunc)(const char*);
+ int call_i(int (*__cdecl func)(int), int arg);
+ float call_f(float (*__cdecl func)(float), float arg);
+ double call_d(double (*__cdecl func)(double), double arg);
+ const char* call_s(sfunc func, const char* arg);
+ _Bool call_b(_Bool (*__cdecl func)(_Bool), _Bool arg);
+ double complex call_dc(double complex (*__cdecl func)(double complex), double complex arg);
+ float complex call_fc(float complex (*__cdecl func)(float complex), float complex arg);
+ enum e8 call_e8(enum e8 (*__cdecl func)(enum e8), enum e8 arg);
+ enum e16 call_e16(enum e16 (*__cdecl func)(enum e16), enum e16 arg);
+ enum e32 call_e32(enum e32 (*__cdecl func)(enum e32), enum e32 arg);
+ ]]
+
+ ffi.cdef(cbs:gsub('__cdecl', convention))
+
+ local u3 = ffi.new('uint64_t', 3)
+ check(c.call_i(function(a) return 2*a end, 3), 6)
+ assert(math.abs(c.call_d(function(a) return 2*a end, 3.2) - 6.4) < 0.0000000001)
+ assert(math.abs(c.call_f(function(a) return 2*a end, 3.2) - 6.4) < 0.000001)
+ check(ffi.string(c.call_s(function(s) return s + u3 end, 'foobar')), 'bar')
+ check(c.call_b(function(v) return not v end, true), false)
+ check(c.call_e8(function(v) return v + 1 end, c.FOO8), c.BAR8)
+ check(c.call_e16(function(v) return v + 1 end, c.FOO16), c.BAR16)
+ check(c.call_e32(function(v) return v + 1 end, c.FOO32), c.BAR32)
+
+ if c.have_complex() then
+ check(c.call_dc(function(v) return v + 2+3*i end, 4+6*i), 6+9*i)
+ check(c.call_fc(function(v) return v + 1+2*i end, 7+4*i), 8+6*i)
+ end
+
+ local u2 = ffi.new('uint64_t', 2)
+ local cb = ffi.new('sfunc', function(s) return s + u3 end)
+ check(ffi.string(cb('foobar')), 'bar')
+ check(ffi.string(c.call_s(cb, 'foobar')), 'bar')
+ cb:set(function(s) return s + u2 end)
+ check(ffi.string(c.call_s(cb, 'foobar')), 'obar')
+
+ local fp = ffi.new('struct fptr')
+ assert(fp.p == ffi.C.NULL)
+ fp.p = function(a) return 2*a end
+ assert(fp.p ~= ffi.C.NULL)
+ check(c.call_fptr(fp, 4), 8)
+ local suc, err = pcall(function() fp.p:set(function() end) end)
+ assert(not suc)
+ check(err:gsub('^.*: ',''), "can't set the function for a non-lua callback")
+
+ check(c.call_fptr({function(a) return 3*a end}, 5), 15)
+
+ local suc, err = pcall(c.call_s, function(s) error(ffi.string(s), 0) end, 'my error')
+ check(suc, false)
+ check(err, 'my error')
+
+ check(ffi.errno(), c.get_errno())
+ c.set_errno(3)
+ check(ffi.errno(), 3)
+ check(c.get_errno(), 3)
+ check(ffi.errno(4), 3)
+ check(ffi.errno(), 4)
+ check(c.get_errno(), 4)
+
+ local gccattr = {
+ __cdecl = 'int test_pow(int v) __attribute__((cdecl));',
+ __stdcall = 'int test_pow(int v) __attribute__(stdcall);',
+ __fastcall = '__attribute__(fastcall) int test_pow(int v);',
+ }
+
+ ffi.cdef(gccattr[convention])
+ check(c.test_pow(5), 25)
+
+ ffi.cdef [[
+ int va_list_size, va_list_align;
+ int vsnprintf(char* buf, size_t sz, const char* fmt, va_list ap);
+ ]]
+ ffi.new('va_list')
+ assert(ffi.debug().functions.vsnprintf ~= nil)
+ assert(ffi.istype('va_list', ffi.new('__builtin_va_list')))
+ assert(ffi.istype('va_list', ffi.new('__gnuc_va_list')))
+ check(ffi.sizeof('va_list'), c.va_list_size)
+ check(ffi.alignof('va_list'), c.va_list_align)
+
+ first = false
+end
+
+local c = ffi.C
+
+assert(c.sprintf(buf, "%g", 5.3) == 3 and ffi.string(buf) == '5.3')
+assert(c.sprintf(buf, "%d", false) == 1 and ffi.string(buf) == '0')
+assert(c.sprintf(buf, "%d%g", false, 6.7) == 4 and ffi.string(buf) == '06.7')
+
+assert(ffi.sizeof('uint32_t[?]', 32) == 32 * 4)
+assert(ffi.sizeof(ffi.new('uint32_t[?]', 32)) == 32 * 4)
+
+ffi.cdef [[
+struct vls {
+ struct {
+ char a;
+ struct {
+ char b;
+ char v[?];
+ } c;
+ } d;
+};
+struct vls2 {
+ char pad;
+ union {
+ uint8_t a;
+ uint16_t b;
+ };
+};
+]]
+
+assert(ffi.sizeof('struct vls', 3) == 5)
+assert(ffi.sizeof(ffi.new('struct vls', 4).d.c) == 5)
+assert(ffi.offsetof('struct vls2', 'a') == 2)
+assert(ffi.sizeof('struct vls2') == 4)
+
+ffi.cdef [[ static const int DUMMY = 8 << 2; ]]
+assert(ffi.C.DUMMY == 32)
+
+ffi.new('struct {const char* foo;}', {'foo'})
+
+assert(not pcall(function()
+ ffi.new('struct {char* foo;}', {'ff'})
+end))
+
+local mt = {}
+local vls = ffi.new(ffi.metatype('struct vls', mt), 1)
+
+assert(not pcall(function() return vls.key end))
+
+mt.__index = function(vls, key)
+ return function(vls, a, b)
+ return 'in index ' .. key .. ' ' .. vls.d.a .. ' ' .. a .. ' ' .. b
+ end
+end
+
+vls.d.a = 3
+check(vls:key('a', 'b'), 'in index key 3 a b')
+
+assert(not pcall(function() vls.k = 3 end))
+
+mt.__newindex = function(vls, key, val)
+ error('in newindex ' .. key .. ' ' .. vls.d.a .. ' ' .. val, 0)
+end
+
+vls.d.a = 4
+local suc, err = pcall(function() vls.key = 'val' end)
+assert(not suc)
+check(err, 'in newindex key 4 val')
+
+mt.__add = function(vls, a) return vls.d.a + a end
+mt.__sub = function(vls, a) return vls.d.a - a end
+mt.__mul = function(vls, a) return vls.d.a * a end
+mt.__div = function(vls, a) return vls.d.a / a end
+mt.__mod = function(vls, a) return vls.d.a % a end
+mt.__pow = function(vls, a) return vls.d.a ^ a end
+mt.__eq = function(vls, a) return u64(vls.d.a) == a end
+mt.__lt = function(vls, a) return u64(vls.d.a) < a end
+mt.__le = function(vls, a) return u64(vls.d.a) <= a end
+mt.__call = function(vls, a, b) return '__call', vls.d.a .. a .. (b or 'nil') end
+mt.__unm = function(vls) return -vls.d.a end
+mt.__concat = function(vls, a) return vls.d.a .. a end
+mt.__len = function(vls) return vls.d.a end
+mt.__tostring = function(vls) return 'string ' .. vls.d.a end
+
+vls.d.a = 5
+check(vls + 5, 10)
+check(vls - 5, 0)
+check(vls * 5, 25)
+check(vls / 5, 1)
+check(vls % 3, 2)
+check(vls ^ 3, 125)
+check(vls == u64(4), false)
+check(vls == u64(5), true)
+check(vls == u64(6), false)
+check(vls < u64(4), false)
+check(vls < u64(5), false)
+check(vls < u64(6), true)
+check(vls <= u64(4), false)
+check(vls <= u64(5), true)
+check(vls <= u64(6), true)
+check(-vls, -5)
+local a,b = vls('6')
+check(a, '__call')
+check(b, '56nil')
+check(tostring(vls), 'string 5')
+
+if _VERSION ~= 'Lua 5.1' then
+ check(vls .. 'str', '5str')
+ check(#vls, 5)
+end
+
+check(tostring(1+3*i), '1+3i')
+check(tostring((1+3*i)*(2+4*i)), '-10+10i')
+check(tostring((3+2*i)*(3-2*i)), '13')
+
+-- Should ignore unknown attributes
+ffi.cdef [[
+typedef int ALenum;
+__attribute__((dllimport)) void __attribute__((__cdecl__)) alEnable( ALenum capability );
+]]
+
+check(ffi.sizeof('struct {char foo[alignof(uint64_t)];}'), ffi.alignof('uint64_t'))
+
+-- Long double is not supported yet but it should be parsed
+ffi.cdef('long double foo(long double val);')
+check(tostring(ffi.debug().functions.foo):match('ctype(%b<>)'), '<long double (*)(long double)>')
+
+ffi.cdef [[
+typedef int byte1 __attribute__(mode(QI));
+typedef int byte2 __attribute__(mode(HI));
+typedef int byte4 __attribute__(mode(SI));
+typedef int byte8 __attribute__(mode(DI));
+typedef unsigned ubyte8 __attribute__(mode(DI));
+typedef int word __attribute__(mode(word));
+typedef int pointer __attribute__(mode(pointer));
+typedef int byte __attribute__(mode(byte));
+typedef float float4 __attribute__(mode(SF));
+typedef float float8 __attribute__(mode(DF));
+]]
+assert(ffi.istype('int8_t', ffi.new('byte1')))
+assert(ffi.istype('int16_t', ffi.new('byte2')))
+assert(ffi.istype('int32_t', ffi.new('byte4')))
+assert(ffi.istype('int64_t', ffi.new('byte8')))
+assert(ffi.istype('uint64_t', ffi.new('ubyte8')))
+check(ffi.sizeof('void*'), ffi.sizeof('pointer'))
+check(ffi.alignof('void*'), ffi.alignof('pointer'))
+check(ffi.sizeof('void*'), ffi.sizeof('word'))
+check(ffi.alignof('void*'), ffi.alignof('word'))
+assert(ffi.istype('int8_t', ffi.new('byte')))
+assert(ffi.istype('float', ffi.new('float4')))
+assert(ffi.istype('double', ffi.new('float8')))
+
+ffi.cdef('void register_foo(register int val);')
+check(tostring(ffi.debug().functions.register_foo):match('%b<>'), '<void (*)(int)>')
+
+ffi.cdef [[
+ typedef struct __sFILE FILE;
+ FILE *fopen(const char * , const char * ) __asm("_" "fopen" );
+]]
+
+assert(not ffi.istype('int', ffi.new('int*')))
+assert(not ffi.istype('int[]', ffi.new('int*')))
+assert(not ffi.istype('int[3]', ffi.new('int*')))
+assert(not ffi.istype('int[3]', ffi.new('int[2]')))
+assert(ffi.istype('const int[3]', ffi.new('const int[3]')))
+assert(ffi.istype('int[3]', ffi.new('const int[3]')))
+
+-- Crazy function pointer that takes an int and a function pointer and returns
+-- a function pointer. Type of &signal.
+check(tostring(ffi.typeof('void (*foo(int, void(*)(int)))(int)')):match('%b<>'), '<void (*(*)(int, void (*)(int)))(int)>')
+
+-- Make sure we pass all arguments to tonumber
+check(tonumber('FE', 16), 0xFE)
+
+-- Allow casts from pointer to numeric types
+ffi.cast('long', ffi.C.NULL)
+ffi.cast('int8_t', ffi.C.NULL)
+assert(not pcall(function() ffi.new('long', ffi.C.NULL) end))
+
+-- ffi.new and ffi.cast allow unpacked struct/arrays
+assert(ffi.new('int[3]', 1)[0] == 1)
+assert(ffi.new('int[3]', {1})[0] == 1)
+assert(ffi.new('int[3]', 1, 2)[1] == 2)
+assert(ffi.new('int[3]', {1, 2})[1] == 2)
+
+ffi.cdef[[
+struct var {
+ char ch[?];
+};
+]]
+local d = ffi.new('char[4]')
+local v = ffi.cast('struct var*', d)
+v.ch = {1,2,3,4}
+assert(v.ch[3] == 4)
+v.ch = "bar"
+assert(v.ch[3] == 0)
+assert(v.ch[2] == string.byte('r'))
+assert(d[1] == string.byte('a'))
+
+ffi.cast('char*', 1)
+
+-- 2 arg form of ffi.copy
+ffi.copy(d, 'bar')
+
+-- unsigned should be ignored for pointer rules
+ffi.cdef[[
+int strncmp(const signed char *s1, const unsigned char *s2, size_t n);
+]]
+assert(ffi.C.strncmp("two", "three", 3) ~= 0)
+
+ffi.fill(d, 3, 1)
+assert(d[2] == 1)
+ffi.fill(d, 3)
+assert(d[2] == 0)
+
+-- tests for __new
+ffi.cdef[[
+struct newtest {
+ int a;
+ int b;
+ int c;
+};
+]]
+
+local tp = ffi.metatype("struct newtest", {__new =
+ function(tp, x, y, z)
+ tp = ffi.new(tp)
+ tp.a, tp.b, tp.c = x, y, z
+ return tp
+ end})
+local v = tp(1, 2, 3)
+assert(v.a == 1 and v.b == 2 and v.c == 3)
+
+local tp = ffi.metatype("struct newtest", {__new =
+ function(tp, x, y, z)
+ tp = ffi.new(tp, {a = x, b = y, c = z})
+ return tp
+ end})
+local v = tp(1, 2, 3)
+assert(v.a == 1 and v.b == 2 and v.c == 3)
+
+-- tests for __pairs and __ipairs; not iterating just testing what is returned
+local tp = ffi.metatype("struct newtest",
+ {__pairs = function(tp) return tp.a, tp.b end, __ipairs = function(tp) return tp.b, tp.c end}
+)
+local v = tp(1, 2, 3)
+x, y = pairs(v)
+assert(x == 1 and y == 2)
+x, y = ipairs(v)
+assert(x == 2 and y == 3)
+
+-- test for pointer to struct having same metamethods
+local st = ffi.cdef "struct ptest {int a, b;};"
+local tp = ffi.metatype("struct ptest", {__index = function(s, k) return k end, __len = function(s) return 3 end})
+
+local a = tp(1, 2)
+assert(a.banana == "banana")
+assert(#a == 3)
+local b = ffi.new("int[2]")
+local c = ffi.cast("struct ptest *", b)
+assert(c.banana == "banana") -- should have same methods
+assert(#c == 3)
+
+
+print('Test PASSED')
+
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