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/*
* dllcrt1.c
*
* Initialization code for DLLs.
*
* This file is part of the Mingw32 package.
*
* Contributors:
* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
* DLL support adapted from Gunther Ebert <gunther.ebert@ixos-leipzig.de>
* Maintained by Mumit Khan <khan@xraylith.wisc.EDU>
*
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRENTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAMED. This includes but is not limited to warrenties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* $Revision$
* $Author$
* $Date$
*
*/
#include <stdio.h>
#include <io.h>
#include <process.h>
#include <windows.h>
/* Unlike normal crt1, I don't initialize the FPU, because the process
* should have done that already. I also don't set the file handle modes,
* because that would be rude. */
#ifdef __GNUC__
extern void __main ();
extern void __do_global_dtors ();
#endif
extern BOOL WINAPI DllMain (HANDLE, DWORD, LPVOID);
BOOL WINAPI
DllMainCRTStartup (HANDLE hDll, DWORD dwReason, LPVOID lpReserved)
{
BOOL bRet;
if (dwReason == DLL_PROCESS_ATTACH)
{
#ifdef __GNUC__
/* From libgcc.a, calls global class constructors. */
__main ();
#endif
}
/*
* Call the user-supplied DllMain subroutine
* NOTE: DllMain is optional, so libmingw32.a includes a stub
* which will be used if the user does not supply one.
*/
bRet = DllMain (hDll, dwReason, lpReserved);
#ifdef __GNUC__
if (dwReason == DLL_PROCESS_DETACH)
{
/* From libgcc.a, calls global class destructors. */
__do_global_dtors ();
}
#endif
return bRet;
}
/*
* For the moment a dummy atexit. Atexit causes problems in DLLs, especially
* if they are dynamically loaded. For now atexit inside a DLL does nothing.
* NOTE: We need this even if the DLL author never calls atexit because
* the global constructor function __do_global_ctors called from __main
* will attempt to register __do_global_dtors using atexit.
* Thanks to Andrey A. Smirnov for pointing this one out.
*/
int
atexit (void (*pfn) ())
{
return 0;
}
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