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v/vlib/v/gen/cheaders.v

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module gen
// NB: @@@ here serve as placeholders.
// They will be replaced with correct strings
// for each constant, during C code generation.
const (
// V_COMMIT_HASH is generated by cmd/tools/gen_vc.v .
c_commit_hash_default = '
#ifndef V_COMMIT_HASH
#define V_COMMIT_HASH "@@@"
#endif
'
// V_CURRENT_COMMIT_HASH is updated, when V is rebuilt inside a git repo.
c_current_commit_hash_default = '
#ifndef V_CURRENT_COMMIT_HASH
#define V_CURRENT_COMMIT_HASH "@@@"
#endif
'
c_common_macros = '
#define EMPTY_STRUCT_DECLARATION
#define EMPTY_STRUCT_INITIALIZATION 0
// Due to a tcc bug, the length of an array needs to be specified, but GCC crashes if it is...
#define EMPTY_ARRAY_OF_ELEMS(x,n) (x[])
#define TCCSKIP(x) x
#define __NOINLINE __attribute__((noinline))
#define __IRQHANDLER __attribute__((interrupt))
#ifdef __TINYC__
#undef EMPTY_STRUCT_DECLARATION
#undef EMPTY_STRUCT_INITIALIZATION
#define EMPTY_STRUCT_DECLARATION char _dummy
#define EMPTY_STRUCT_INITIALIZATION 0
#undef EMPTY_ARRAY_OF_ELEMS
#define EMPTY_ARRAY_OF_ELEMS(x,n) (x[n])
#undef __NOINLINE
#undef __IRQHANDLER
// tcc does not support inlining at all
#define __NOINLINE
#define __IRQHANDLER
#undef TCCSKIP
#define TCCSKIP(x)
// #include <byteswap.h>
#endif
// for __offset_of
#ifndef __offsetof
#define __offsetof(s,memb) \\
((size_t)((char *)&((s *)0)->memb - (char *)0))
#endif
#define OPTION_CAST(x) (x)
#ifndef V64_PRINTFORMAT
#ifdef PRIx64
#define V64_PRINTFORMAT "0x%"PRIx64
#elif defined(__WIN32__)
#define V64_PRINTFORMAT "0x%I64x"
#elif defined(__linux__) && defined(__LP64__)
#define V64_PRINTFORMAT "0x%lx"
#else
#define V64_PRINTFORMAT "0x%llx"
#endif
#endif
'
c_headers = '
// c_headers
typedef int (*qsort_callback_func)(const void*, const void*);
#include <stdio.h> // TODO remove all these includes, define all function signatures and types manually
#include <stdlib.h>
#ifdef __cplusplus
# include <utility>
# define _MOV std::move
#else
# define _MOV
#endif
#ifndef _WIN32
#if defined __has_include
#if __has_include (<execinfo.h>)
# include <execinfo.h>
#else
// Most probably musl OR __ANDROID__ ...
int backtrace (void **__array, int __size) { return 0; }
char **backtrace_symbols (void *const *__array, int __size){ return 0; }
void backtrace_symbols_fd (void *const *__array, int __size, int __fd){}
#endif
#endif
#endif
//#include "fns.h"
#include <signal.h>
#include <stdarg.h> // for va_list
#include <string.h> // memcpy
#if INTPTR_MAX == INT32_MAX
#define TARGET_IS_32BIT 1
#elif INTPTR_MAX == INT64_MAX
#define TARGET_IS_64BIT 1
#else
#error "The environment is not 32 or 64-bit."
#endif
#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ || defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN || defined(__BIG_ENDIAN__) || defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || defined(_MIBSEB) || defined(__MIBSEB) || defined(__MIBSEB__)
#define TARGET_ORDER_IS_BIG
#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ || defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN || defined(__LITTLE_ENDIAN__) || defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__) || defined(_M_AMD64) || defined(_M_X64) || defined(_M_IX86)
#define TARGET_ORDER_IS_LITTLE
#else
#error "Unknown architecture endianness"
#endif
#ifndef _WIN32
#include <ctype.h>
#include <locale.h> // tolower
#include <sys/time.h>
#include <unistd.h> // sleep
extern char **environ;
#endif
#if defined(__CYGWIN__) && !defined(_WIN32)
#error Cygwin is not supported, please use MinGW or Visual Studio.
#endif
#ifdef __linux__
#include <sys/types.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif
#ifdef __FreeBSD__
#include <sys/types.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif
#ifdef __DragonFly__
#include <sys/types.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif
#ifdef __OpenBSD__
#include <sys/types.h>
#include <sys/resource.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif
#ifdef __NetBSD__
#include <sys/wait.h> // os__wait uses wait on nix
#endif
#ifdef __sun
#include <sys/types.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif
$c_common_macros
#ifdef _WIN32
#define WINVER 0x0600
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINNT 0x0600
#define WIN32_LEAN_AND_MEAN
#define _UNICODE
#define UNICODE
#include <windows.h>
#include <io.h> // _waccess
#include <direct.h> // _wgetcwd
//#include <WinSock2.h>
#ifdef _MSC_VER
// On MSVC these are the same (as long as /volatile:ms is passed)
#define _Atomic volatile
// MSVC cannot parse some things properly
#undef EMPTY_STRUCT_DECLARATION
#undef OPTION_CAST
#define EMPTY_STRUCT_DECLARATION int ____dummy_variable
#define OPTION_CAST(x)
#undef __NOINLINE
#undef __IRQHANDLER
#define __NOINLINE __declspec(noinline)
#define __IRQHANDLER __declspec(naked)
#include <dbghelp.h>
#pragma comment(lib, "Dbghelp.lib")
extern wchar_t **_wenviron;
#endif
#else
#include <pthread.h>
#endif
// g_live_info is used by live.info()
void* g_live_info = NULL;
//============================== HELPER C MACROS =============================*/
//#define tos4(s, slen) ((string){.str=(s), .len=(slen)})
#define _SLIT(s) ((string){.str=(s), .len=(strlen(s))})
#define _PUSH_MANY(arr, val, tmp, tmp_typ) {tmp_typ tmp = (val); array_push_many(arr, tmp.data, tmp.len);}
#define _IN(typ, val, arr) array_##typ##_contains(arr, val)
#define _IN_MAP(val, m) map_exists(m, val)
#if defined(__MINGW32__) || defined(__MINGW64__)
#undef PRId64
#undef PRIi64
#undef PRIo64
#undef PRIu64
#undef PRIx64
#undef PRIX64
#define PRId64 "lld"
#define PRIi64 "lli"
#define PRIo64 "llo"
#define PRIu64 "llu"
#define PRIx64 "llx"
#define PRIX64 "llX"
#endif
//================================== GLOBALS =================================*/
//byte g_str_buf[1024];
byte* g_str_buf;
int load_so(byteptr);
void reload_so();
void _vinit();
void _vcleanup();
#define sigaction_size sizeof(sigaction);
#define _ARR_LEN(a) ( (sizeof(a)) / (sizeof(a[0])) )
// ============== wyhash ==============
//Author: Wang Yi
#ifndef wyhash_version_gamma
#define wyhash_version_gamma
#define WYHASH_CONDOM 0
#include <stdint.h>
#include <string.h>
#if defined(_MSC_VER) && defined(_M_X64)
#include <intrin.h>
#pragma intrinsic(_umul128)
#endif
//const uint64_t _wyp0=0xa0761d6478bd642full, _wyp1=0xe7037ed1a0b428dbull;
#define _wyp0 ((uint64_t)0xa0761d6478bd642full)
#define _wyp1 ((uint64_t)0xe7037ed1a0b428dbull)
#if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__clang__) || defined(__TINYC__)
#define _likely_(x) __builtin_expect(x, 1)
#define _unlikely_(x) __builtin_expect((x), 0)
#else
#define _likely_(x) (x)
#define _unlikely_(x) (x)
#endif
#if defined(TARGET_ORDER_IS_LITTLE)
#define WYHASH_LITTLE_ENDIAN 1
#elif defined(TARGET_ORDER_IS_BIG)
#define WYHASH_LITTLE_ENDIAN 0
#endif
#if (WYHASH_LITTLE_ENDIAN)
static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return v;}
static inline uint64_t _wyr4(const uint8_t *p) { unsigned v; memcpy(&v, p, 4); return v;}
#else
#if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__clang__)
static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return __builtin_bswap64(v);}
static inline uint64_t _wyr4(const uint8_t *p) { unsigned v; memcpy(&v, p, 4); return __builtin_bswap32(v);}
#elif defined(_MSC_VER)
static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return _byteswap_uint64(v);}
static inline uint64_t _wyr4(const uint8_t *p) { unsigned v; memcpy(&v, p, 4); return _byteswap_ulong(v);}
#elif defined(__TINYC__)
static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return bswap_64(v);}
static inline uint64_t _wyr4(const uint8_t *p) { unsigned v; memcpy(&v, p, 4); return bswap_32(v);}
#endif
#endif
static inline uint64_t _wyr3(const uint8_t *p, unsigned k) { return (((uint64_t)p[0]) << 16) | (((uint64_t)p[k >> 1]) << 8) | p[k - 1];}
static inline uint64_t _wyrotr(uint64_t v, unsigned k) { return (v >> k) | (v << (64 - k));}
static inline void _wymix128(uint64_t A, uint64_t B, uint64_t *C, uint64_t *D){
A^=*C; B^=*D;
#ifdef UNOFFICIAL_WYHASH_32BIT
uint64_t hh=(A>>32)*(B>>32), hl=(A>>32)*(unsigned)B, lh=(unsigned)A*(B>>32), ll=(uint64_t)(unsigned)A*(unsigned)B;
*C=_wyrotr(hl,32)^hh; *D=_wyrotr(lh,32)^ll;
#else
#ifdef __SIZEOF_INT128__
__uint128_t r=A; r*=B; *C=(uint64_t)r; *D=(uint64_t)(r>>64);
#elif defined(_MSC_VER) && defined(_M_X64)
A=_umul128(A,B,&B); *C=A; *D=B;
#else
uint64_t ha=A>>32, hb=B>>32, la=(uint32_t)A, lb=(uint32_t)B, hi, lo;
uint64_t rh=ha*hb, rm0=ha*lb, rm1=hb*la, rl=la*lb, t=rl+(rm0<<32), c=t<rl;
lo=t+(rm1<<32); c+=lo<t; hi=rh+(rm0>>32)+(rm1>>32)+c;
*C=lo; *D=hi;
#endif
#endif
}
static inline uint64_t wyhash(const void *key, uint64_t len, uint64_t seed){
const uint8_t *p=(const uint8_t *)key;
uint64_t i=len, see1=seed;
start:
if(_likely_(i<=16)){
#ifndef WYHASH_CONDOM
uint64_t shift=(i<8)*((8-i)<<3);
//WARNING: intended reading outside buffer, trading for speed.
_wymix128((_wyr8(p)<<shift)^_wyp0,(_wyr8(p+i-8)>>shift)^_wyp1, &seed, &see1);
#else
if(_likely_(i<=8)){
if(_likely_(i>=4)) _wymix128(_wyr4(p)^_wyp0,_wyr4(p+i-4)^_wyp1, &seed, &see1);
else if (_likely_(i)) _wymix128(_wyr3(p,i)^_wyp0,_wyp1, &seed, &see1);
else _wymix128(_wyp0,_wyp1, &seed, &see1);
}
else _wymix128(_wyr8(p)^_wyp0,_wyr8(p+i-8)^_wyp1, &seed, &see1);
#endif
_wymix128(len,_wyp0, &seed, &see1);
return seed^see1;
}
_wymix128(_wyr8(p)^_wyp0,_wyr8(p+8)^_wyp1, &seed, &see1);
i-=16; p+=16; goto start;
}
static inline uint64_t wyhash64(uint64_t A, uint64_t B){
_wymix128(_wyp0,_wyp1,&A,&B);
_wymix128(0,0,&A,&B);
return A^B;
}
static inline uint64_t wyrand(uint64_t *seed){
*seed+=_wyp0;
uint64_t a=0, b=0;
_wymix128(*seed,*seed^_wyp1,&a,&b);
return a^b;
}
static inline double wy2u01(uint64_t r) {
const double _wynorm=1.0/(1ull<<52);
return (r>>12)*_wynorm;
}
static inline double wy2gau(uint64_t r) {
const double _wynorm=1.0/(1ull<<20);
return ((r&0x1fffff)+((r>>21)&0x1fffff)+((r>>42)&0x1fffff))*_wynorm-3.0;
}
#endif
'
c_builtin_types = '
//================================== builtin types ================================*/
typedef int64_t i64;
typedef int16_t i16;
typedef int8_t i8;
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t byte;
typedef uint32_t rune;
typedef float f32;
typedef double f64;
typedef int64_t any_int;
typedef double any_float;
typedef unsigned char* byteptr;
typedef void* voidptr;
typedef char* charptr;
typedef struct array array;
typedef struct map map;
typedef array array_string;
typedef array array_int;
typedef array array_byte;
typedef array array_f32;
typedef array array_f64;
typedef array array_u16;
typedef array array_u32;
typedef array array_u64;
typedef map map_int;
typedef map map_string;
typedef byte array_fixed_byte_300 [300];
typedef byte array_fixed_byte_400 [400];
#ifndef __cplusplus
#ifndef bool
typedef int bool;
#define true 1
#define false 0
#endif
#endif
'
bare_c_headers = '
$c_common_macros
#ifndef exit
#define exit(rc) sys_exit(rc)
void sys_exit (int);
#endif
'
)
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