tinycc/win32/lib/crt1.c
grischka ce1ef5b8fc some smaller fixes
- libtcc.c/tccpp.c: fix -U option for multiple input files
- libtcc: remove decl of tcc_add_crt() for PE
- tcc.h: define __i386__ and __x86_64__ for msvc
- tcc.h: undef __attribute__ for __TINYC__ on gnu/linux platforms
- tccelf.c: disable prepare_dynamic_rel unless x86/x64
- tccpe.c: construct rather than predefine PE section flags
- tccpp.c: (alt.) fix access of dead stack variable after error/longjmp
- x86_64-gen.c: fix func_alloca chain for nocode_wanted
- tccpp.c/tccgen.c: improve file:line info for inline functions
- winapi/winnt.h: correct position for DECLSPEC_ALIGN attribute
- win32/lib/crt: simplify top exception handler (needed for signal)
- arm64-gen.c: remove dprintf left from VT_CMP commit
- tccgen.c: limit binary scan with gcase to > 8 (= smaller code)
- tccgen.c: call save_regs(4) in gen_opl for cmp-ops (see test in tcctest.c)
2019-07-14 22:46:19 +02:00

85 lines
2.3 KiB
C

// =============================================
// crt1.c
// _UNICODE for tchar.h, UNICODE for API
#include <tchar.h>
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#define _UNKNOWN_APP 0
#define _CONSOLE_APP 1
#define _GUI_APP 2
#define _MCW_PC 0x00030000 // Precision Control
#define _PC_24 0x00020000 // 24 bits
#define _PC_53 0x00010000 // 53 bits
#define _PC_64 0x00000000 // 64 bits
#ifdef _UNICODE
#define __tgetmainargs __wgetmainargs
#define _tstart _wstart
#define _tmain wmain
#define _runtmain _runwmain
#else
#define __tgetmainargs __getmainargs
#define _tstart _start
#define _tmain main
#define _runtmain _runmain
#endif
typedef struct { int newmode; } _startupinfo;
int __cdecl __tgetmainargs(int *pargc, _TCHAR ***pargv, _TCHAR ***penv, int globb, _startupinfo*);
void __cdecl __set_app_type(int apptype);
unsigned int __cdecl _controlfp(unsigned int new_value, unsigned int mask);
extern int _tmain(int argc, _TCHAR * argv[], _TCHAR * env[]);
/* Allow command-line globbing with "int _dowildcard = 1;" in the user source */
int _dowildcard;
static LONG WINAPI catch_sig(EXCEPTION_POINTERS *ex)
{
return _XcptFilter(ex->ExceptionRecord->ExceptionCode, ex);
}
void _tstart(void)
{
_startupinfo start_info = {0};
SetUnhandledExceptionFilter(catch_sig);
// Sets the current application type
__set_app_type(_CONSOLE_APP);
// Set default FP precision to 53 bits (8-byte double)
// _MCW_PC (Precision control) is not supported on ARM
#if defined __i386__ || defined __x86_64__
_controlfp(_PC_53, _MCW_PC);
#endif
__tgetmainargs( &__argc, &__targv, &_tenviron, _dowildcard, &start_info);
exit(_tmain(__argc, __targv, _tenviron));
}
int _runtmain(int argc, /* as tcc passed in */ char **argv)
{
#ifdef UNICODE
_startupinfo start_info = {0};
__tgetmainargs(&__argc, &__targv, &_tenviron, _dowildcard, &start_info);
/* may be wrong when tcc has received wildcards (*.c) */
if (argc < __argc) {
__targv += __argc - argc;
__argc = argc;
}
#else
__argc = argc;
__targv = argv;
#endif
#if defined __i386__ || defined __x86_64__
_controlfp(_PC_53, _MCW_PC);
#endif
return _tmain(__argc, __targv, _tenviron);
}
// =============================================