/* vim: ts=4 sw=4 sts=4 et tw=78 * Portions copyright (c) 2015-present, Facebook, Inc. All rights reserved. * Portions copyright (c) 2011 James R. McKaskill. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. */ #include #include #include #include #include #include #ifdef _WIN32 #include #else #include #endif #include #define HAVE_COMPLEX #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); EXPORT char buf[512]; char buf[512]; EXPORT void test_call_echo(char* c); void test_call_echo(char* c) { sprintf(buf, "%s", c); } EXPORT void test_call_pppppii(void* a, void* b, void* c, void* d, void* e, int f, int g); void test_call_pppppii(void* a, void* b, void* c, void* d, void* e, int f, int g) { sprintf(buf, "%p %p %p %p %p %d %d", a, b, c, d, e, f, g); } EXPORT void test_call_pppppiiiiii(void* p1, void* p2, void* p3, void* p4, void* p5, int i1, int i2, int i3, int i4, int i5, int i6); void test_call_pppppiiiiii(void* p1, void* p2, void* p3, void* p4, void* p5, int i1, int i2, int i3, int i4, int i5, int i6) { sprintf(buf, "%p %p %p %p %p %d %d %d %d %d %d", p1, p2, p3, p4, p5, i1, i2, i3, i4, i5, i6); } EXPORT void test_call_pppppffffff(void* p1, void* p2, void* p3, void* p4, void* p5, float f1, float f2, float f3, float f4, float f5, float f6); void test_call_pppppffffff(void* p1, void* p2, void* p3, void* p4, void* p5, float f1, float f2, float f3, float f4, float f5, float f6) { sprintf(buf, "%p %p %p %p %p %0.1f %0.1f %0.1f %0.1f %0.1f %0.1f", p1, p2, p3, p4, p5, f1, f2, f3, f4, f5, f6); } EXPORT void test_call_pppppiifiii(void* p1, void* p2, void* p3, void* p4, void* p5, int i1, int i2, float f3, int i4, int i5, int i6); void test_call_pppppiifiii(void* p1, void* p2, void* p3, void* p4, void* p5, int i1, int i2, float f3, int i4, int i5, int i6) { sprintf(buf, "%p %p %p %p %p %d %d %0.1f %d %d %d", p1, p2, p3, p4, p5, i1, i2, f3, i4, i5, i6); } EXPORT void test_call_pppppiiifii(void* p1, void* p2, void* p3, void* p4, void* p5, int i1, int i2, int i3, float f4, int i5, int i6); void test_call_pppppiiifii(void* p1, void* p2, void* p3, void* p4, void* p5, int i1, int i2, int i3, float f4, int i5, int i6) { sprintf(buf, "%p %p %p %p %p %d %d %d %0.1f %d %d", p1, p2, p3, p4, p5, i1, i2, i3, f4, i5, i6); }