forked from Mirrors/tinycc
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
// =============================================
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// crt1.c
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// _UNICODE for tchar.h, UNICODE for API
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#include <tchar.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define _UNKNOWN_APP 0
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#define _CONSOLE_APP 1
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#define _GUI_APP 2
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#define _MCW_PC 0x00030000 // Precision Control
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#define _PC_24 0x00020000 // 24 bits
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#define _PC_53 0x00010000 // 53 bits
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#define _PC_64 0x00000000 // 64 bits
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typedef struct
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{
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int newmode;
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} _startupinfo;
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#ifdef _UNICODE
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#define __tgetmainargs __wgetmainargs
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#define _tstart _wstart
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#define _tmain wmain
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#define _runtmain _runwmain
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#else
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#define __tgetmainargs __getmainargs
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#define _tstart _start
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#define _tmain main
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#define _runtmain _runmain
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#endif
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int __cdecl __tgetmainargs(int *pargc, _TCHAR ***pargv, _TCHAR ***penv, int globb, _startupinfo*);
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void __cdecl __set_app_type(int apptype);
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unsigned int __cdecl _controlfp(unsigned int new_value, unsigned int mask);
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extern int _tmain(int argc, _TCHAR * argv[], _TCHAR * env[]);
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/* Allow command-line globbing with "int _dowildcard = 1;" in the user source */
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int _dowildcard;
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void _tstart(void)
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{
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__TRY__
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int argc, ret;
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_TCHAR **argv;
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_TCHAR **env;
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_startupinfo start_info;
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// Sets the current application type
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__set_app_type(_CONSOLE_APP);
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// Set default FP precision to 53 bits (8-byte double)
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// _MCW_PC (Precision control) is not supported on
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// the ARM and x64 architectures
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#ifdef __i386
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_controlfp(_PC_53, _MCW_PC);
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#endif
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start_info.newmode = 0;
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__tgetmainargs( &argc, &argv, &env, _dowildcard, &start_info);
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ret = _tmain(argc, argv, env);
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exit(ret);
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}
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int _runtmain(int argc, /* as tcc passed in */ char **argv)
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{
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#ifdef UNICODE
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int wargc;
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_TCHAR **wargv, **wenv;
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_startupinfo start_info = {0};
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__tgetmainargs(&wargc, &wargv, &wenv, _dowildcard, &start_info);
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/* may be wrong when tcc has received wildcards (*.c) */
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if (argc < wargc)
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wargv += wargc - argc;
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else
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argc = wargc;
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#define argv wargv
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#endif
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#ifdef __i386
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_controlfp(_PC_53, _MCW_PC);
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#endif
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return _tmain(argc, argv, _tenviron);
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}
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// =============================================
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