diff options
Diffstat (limited to 'plugins/MirLua/Modules/luaffi/src/call_x86.h')
| -rw-r--r-- | plugins/MirLua/Modules/luaffi/src/call_x86.h | 1172 |
1 files changed, 1172 insertions, 0 deletions
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);
+ }
+}
+
|