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//This code is need to get the WinMain function called. Current MinGW runtimes tries to call main
//before WinMain. Untill such time as MinGw runtime has been changed this is need.
//Most of this code is taken from the MinGw runtime sources.
#include <signal.h>
#include <process.h>
#include <float.h>
#include <io.h>
/*
* Setup the default file handles to have the _CRT_fmode mode, as well as
* any new files created by the user.
*/
extern int _fmode;
extern "C" int* __p__fmode(void); /* To access the dll _fmode */
extern int _CRT_fmode;
static void _mingw32_init_fmode ()
{
/* Don't set the std file mode if the user hasn't set any value for it. */
if (_CRT_fmode)
{
_fmode = _CRT_fmode;
/*
* This overrides the default file mode settings for stdin,
* stdout and stderr. At first I thought you would have to
* test with isatty, but it seems that the DOS console at
* least is smart enough to handle _O_BINARY stdout and
* still display correctly.
*/
if (stdin)
{
_setmode (_fileno (stdin), _CRT_fmode);
}
if (stdout)
{
_setmode (_fileno (stdout), _CRT_fmode);
}
if (stderr)
{
_setmode (_fileno (stderr), _CRT_fmode);
}
}
/* Now sync the dll _fmode to the one for this .exe. */
*__p__fmode() = _fmode;
}
/* This function will be called when a trap occurs. Thanks to Jacob
Navia for his contribution. */
static CALLBACK long _gnu_exception_handler (EXCEPTION_POINTERS * exception_data)
{
void (*old_handler) (int);
long action = EXCEPTION_CONTINUE_SEARCH;
int reset_fpu = 0;
switch (exception_data->ExceptionRecord->ExceptionCode)
{
case EXCEPTION_ACCESS_VIOLATION:
/* test if the user has set SIGSEGV */
old_handler = signal (SIGSEGV, SIG_DFL);
if (old_handler == SIG_IGN)
{
/* this is undefined if the signal was raised by anything other
than raise (). */
signal (SIGSEGV, SIG_IGN);
action = EXCEPTION_CONTINUE_EXECUTION;
}
else if (old_handler != SIG_DFL)
{
/* This means 'old' is a user defined function. Call it */
(*old_handler) (SIGSEGV);
action = EXCEPTION_CONTINUE_EXECUTION;
}
break;
case EXCEPTION_FLT_INVALID_OPERATION:
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
case EXCEPTION_FLT_DENORMAL_OPERAND:
case EXCEPTION_FLT_OVERFLOW:
case EXCEPTION_FLT_UNDERFLOW:
case EXCEPTION_FLT_INEXACT_RESULT:
reset_fpu = 1;
/* fall through. */
case EXCEPTION_INT_DIVIDE_BY_ZERO:
/* test if the user has set SIGFPE */
old_handler = signal (SIGFPE, SIG_DFL);
if (old_handler == SIG_IGN)
{
signal (SIGFPE, SIG_IGN);
if (reset_fpu)
_fpreset ();
action = EXCEPTION_CONTINUE_EXECUTION;
}
else if (old_handler != SIG_DFL)
{
/* This means 'old' is a user defined function. Call it */
(*old_handler) (SIGFPE);
action = EXCEPTION_CONTINUE_EXECUTION;
}
break;
default:
break;
}
return action;
}
extern char __RUNTIME_PSEUDO_RELOC_LIST__;
extern char __RUNTIME_PSEUDO_RELOC_LIST_END__;
extern char _image_base__;
typedef struct {
DWORD addend;
DWORD target;
} runtime_pseudo_reloc;
static void do_pseudo_reloc (void* start, void* end, void* base)
{
DWORD reloc_target;
runtime_pseudo_reloc* r;
for (r = (runtime_pseudo_reloc*) start; r < (runtime_pseudo_reloc*) end; r++) {
reloc_target = (DWORD) base + r->target;
*((DWORD*) reloc_target) += r->addend;
}
}
void _pei386_runtime_relocator ()
{
do_pseudo_reloc (&__RUNTIME_PSEUDO_RELOC_LIST__,
&__RUNTIME_PSEUDO_RELOC_LIST_END__,
&_image_base__);
}
#ifdef __MSVCRT__
#define __UNKNOWN_APP 0
#define __CONSOLE_APP 1
#define __GUI_APP 2
extern "C" void __set_app_type(int);
#endif /* __MSVCRT__ */
#define ISSPACE(a) (a == ' ' || a == '\t')
int TQtWinMainCRTStartup()
{
#ifdef __MSVCRT__
__set_app_type (__GUI_APP);
#endif
SetUnhandledExceptionFilter (_gnu_exception_handler);
/*
* Initialize floating point unit.
*/
_fpreset (); /* Supplied by the runtime library. */
/*
* Sets the default file mode.
* If _CRT_fmode is set, also set mode for stdin, stdout
* and stderr, as well
* NOTE: DLLs don't do this because that would be rude!
*/
_mingw32_init_fmode ();
/* Adust references to dllimported data that have non-zero offsets. */
_pei386_runtime_relocator ();
char *szCmd;
STARTUPINFO startinfo;
int nRet;
/* Get the command line passed to the process. */
szCmd = GetCommandLineA ();
GetStartupInfo (&startinfo);
/* Strip off the name of the application and any leading
* whitespace. */
if (szCmd) {
while (ISSPACE (*szCmd)) {
szCmd++;
}
/* On my system I always get the app name enclosed
* in quotes... */
if (*szCmd == '\"') {
do {
szCmd++;
} while (*szCmd != '\"' && *szCmd != '\0');
if (*szCmd == '\"') {
szCmd++;
}
} else {
/* If no quotes then assume first token is program
* name. */
while (!ISSPACE (*szCmd) && *szCmd != '\0') {
szCmd++;
}
}
while (ISSPACE (*szCmd)) {
szCmd++;
}
}
nRet = WinMain (GetModuleHandle (NULL), NULL, szCmd,
(startinfo.dwFlags & STARTF_USESHOWWINDOW) ?
startinfo.wShowWindow : SW_SHOWDEFAULT);
/*
* Perform exit processing for the C library. This means
* flushing output and calling 'atexit' registered functions.
*/
_cexit ();
ExitProcess (nRet);
return 0;
}
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