1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // EPOC32 version of crt0.c for pure C programs

    15 // 

    16 //

    17 

    18 #include <e32std.h>

    19 #include <e32base.h>

    20 #include <estlib.h>

    21 #include <stdlib.h>

    22 

    23 #ifdef __ARMCC__

    24 __asm int CallMain(int argc, char *argv[], char *envp[])

    25 {

    26        import main

    27        code32

    28        b main

    29 }

    30 #define CALLMAIN(argc, argv, envp) CallMain(argc, argv, envp)

    31 #else

    32 extern "C" int main (int argc, char *argv[], char *envp[]);

    33 #define CALLMAIN(argc, argv, envp) main(argc, argv, envp)

    34 #endif

    35 

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

    37 

    38 GLDEF_C TInt E32Main()

    39 	{     

    40 	CTrapCleanup::New();

    41 

    42 	int argc=0;

    43 	char** argv=0;

    44 	char** envp=0;

    45 

    46 	__crt0(argc,argv,envp);			// get args & environment from somewhere

    47 	int ret=CALLMAIN(argc, argv, envp);		// go

    48 

    49 	// no need to explicitly delete the cleanup stack here as all memory used by

    50 	// the process will be released by RProcess::Terminate(), called from inside exit().

    51 

    52 	exit(ret);				// finish with atexit processing

    53 

    54 	return(KErrNone);

    55 	}

    56 

    57 

    58 #if defined __GCC32__ && !defined __X86GCC__

    59 

    60 /* stub function inserted into main() by GCC */

    61 extern "C" void __gccmain (void) {}

    62 

    63 /* Default GCC entrypoint */

    64 extern "C" TInt _mainCRTStartup (void) 

    65     {

    66     extern TInt _E32Startup();

    67     return _E32Startup();

    68     }

    69 

    70 #endif /* __GCC32__ */

    71 

    72 // X86GCC uses def files derived from EABI

    73 #if (defined (__EABI__) || defined (__X86GCC__))

    74 

    75 // standard entrypoint for C runtime, expected by some linkers

    76 // Symbian OS does not currently use this function

    77 extern "C" void __main() {}

    78 #endif

    79 

    80 

    81