87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
|
// =============================================
|
||
|
|
// crt1.c
|
||
|
|
|
||
|
|
// For ExitProcess
|
||
|
|
// windows.h header file should be included before any other library include
|
||
|
|
#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
|
||
|
|
|
||
|
|
#ifndef __TRY__
|
||
|
|
#ifdef _WIN64
|
||
|
|
#define __TRY__
|
||
|
|
#else
|
||
|
|
#define __TRY__ void __try__(void**), *_sehrec[6]; __try__(_sehrec);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
int newmode;
|
||
|
|
} _startupinfo;
|
||
|
|
|
||
|
|
// Prototype of __getmainargs:
|
||
|
|
// in msvcrt v6.x : returns void (windows 98, 2000)
|
||
|
|
// in msvcrt v7.x : returns int (windows xp and above)
|
||
|
|
// Using the last for check the result. A negative value means no success.
|
||
|
|
// These are the test results of call to __getmainargs with the heap fully:
|
||
|
|
// win 98, 2000 :
|
||
|
|
// program termination with error code 255 after call _amsg_exit(8)
|
||
|
|
// prints: "runtime error R6008\r\n- not enough space for arguments\r\n"
|
||
|
|
// win xp :
|
||
|
|
// returns -1
|
||
|
|
// win 7, 8 :
|
||
|
|
// program termination with error code -1 after call ExitProcess(-1)
|
||
|
|
//
|
||
|
|
// Checking the return of this function also works on windows 98 and 2000
|
||
|
|
// because internally it sets to eax the value of the third parameter.
|
||
|
|
// In this case is &env and at that point it is not a negative value.
|
||
|
|
|
||
|
|
int __cdecl __getmainargs(int *pargc, char ***pargv, char ***penv, int globb, _startupinfo*);
|
||
|
|
void __cdecl __set_app_type(int apptype);
|
||
|
|
unsigned int __cdecl _controlfp(unsigned int new_value, unsigned int mask);
|
||
|
|
|
||
|
|
void _start(void);
|
||
|
|
int main(int argc, char * argv[], char * env[]);
|
||
|
|
|
||
|
|
void _start(void)
|
||
|
|
{
|
||
|
|
__TRY__
|
||
|
|
int argc;
|
||
|
|
char **argv;
|
||
|
|
char **env;
|
||
|
|
_startupinfo start_info;
|
||
|
|
|
||
|
|
// 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
|
||
|
|
// the ARM and x64 architectures
|
||
|
|
#if defined(_X86_) && !defined(__x86_64)
|
||
|
|
_controlfp(_PC_53, _MCW_PC);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
start_info.newmode = 0;
|
||
|
|
if ( __getmainargs( &argc, &argv, &env, 0, &start_info ) < 0 )
|
||
|
|
{
|
||
|
|
ExitProcess(-1);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
exit( main(argc, argv, env) );
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
// =============================================
|