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