Windows-4.7.4/src/s60main/qts60main_mcrt0.cpp

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Symbian application wrapper of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
**     the names of its contributors may be used to endorse or promote
**     products derived from this software without specific prior written
**     permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/

// MCRT0.CPP
//
// Portions copyright (c) 2005-2006 Nokia Corporation.  All rights reserved.
// Copyright (c) Symbian Software Ltd 1997-2004.  All rights reserved.
//

// EPOC32 version of crt0.c for C programs which always want multi-threaded support

#include <e32std.h>
#include <exception> // must be before e32base.h so uncaught_exception gets defined
#include <e32base.h>
#include "estlib.h"

// Needed for QT_TRYCATCH_LEAVING.
#include <qglobal.h>

#ifdef __ARMCC__
__asm int CallMain(int argc, char *argv[], char *envp[])
{
    import main
    code32
    b main
}
#define CALLMAIN(argc, argv, envp) CallMain(argc, argv, envp)
#else
extern "C" int main(int argc, char *argv[], char *envp[]);
#define CALLMAIN(argc, argv, envp) main(argc, argv, envp)
#endif

// Dummy function to handle GCCE toolchain problem
extern "C" GLDEF_C int __GccGlueInit()
{
    return 0;
}

extern "C" IMPORT_C void exit(int ret);

GLDEF_C TInt QtMainWrapper()
{
    int argc = 0;
    char **argv = 0;
    char **envp = 0;
    // get args & environment
    __crt0(argc, argv, envp);
    //Call user(application)'s main
    TRAPD(ret, QT_TRYCATCH_LEAVING(ret = CALLMAIN(argc, argv, envp);));
    delete[] argv;
    delete[] envp;
    return ret;
}


#ifdef __GCC32__

/* stub function inserted into main() by GCC */
extern "C" void __gccmain(void) {}

/* Default GCC entrypoint */
extern "C" TInt _mainCRTStartup(void)
{
    extern TInt _E32Startup();
    return _E32Startup();
}

#endif /* __GCC32__ */

#ifdef __EABI__

// standard entrypoint for C runtime, expected by some linkers
// Symbian OS does not currently use this function
extern "C" void __main() {}
#endif