genericopenlibs/cstdlib/UCRT/ECRT0.CPP
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 18 Aug 2010 11:27:44 +0300
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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// EPOC32 version of crt0.c for pure C programs
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// 
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//
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#include <e32std.h>
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#include <e32base.h>
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#include <estlib.h>
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#include <stdlib.h>
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#ifdef __ARMCC__
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__asm int CallMain(int argc, char *argv[], char *envp[])
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{
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       import main
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       code32
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       b main
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}
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#define CALLMAIN(argc, argv, envp) CallMain(argc, argv, envp)
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#else
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extern "C" int main (int argc, char *argv[], char *envp[]);
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#define CALLMAIN(argc, argv, envp) main(argc, argv, envp)
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#endif
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GLDEF_C TInt E32Main()
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	{     
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	CTrapCleanup::New();
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	int argc=0;
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	char** argv=0;
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	char** envp=0;
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	__crt0(argc,argv,envp);			// get args & environment from somewhere
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	int ret=CALLMAIN(argc, argv, envp);		// go
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	// no need to explicitly delete the cleanup stack here as all memory used by
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	// the process will be released by RProcess::Terminate(), called from inside exit().
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	exit(ret);				// finish with atexit processing
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	return(KErrNone);
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	}
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#if defined __GCC32__ && !defined __X86GCC__
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/* stub function inserted into main() by GCC */
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extern "C" void __gccmain (void) {}
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/* Default GCC entrypoint */
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extern "C" TInt _mainCRTStartup (void) 
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    {
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    extern TInt _E32Startup();
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    return _E32Startup();
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    }
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#endif /* __GCC32__ */
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// X86GCC uses def files derived from EABI
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#if (defined (__EABI__) || defined (__X86GCC__))
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// standard entrypoint for C runtime, expected by some linkers
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// Symbian OS does not currently use this function
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extern "C" void __main() {}
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#endif
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