1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/kernel/eka/euser/epoc/win32/uc_cwhelp.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,86 @@
     1.4 +// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// e32\euser\epoc\win32\uc_cwhelp.cpp
    1.18 +// This file contains the CodeWarrior specific helper code common to eexe and edll
    1.19 +// 
    1.20 +//
    1.21 +
    1.22 +#include <e32std.h>
    1.23 +#include <e32std_private.h>
    1.24 +
    1.25 +// Define LAZY_INIT to allow the runtime to construct itself only when necessary.  This uses less
    1.26 +// TLS indicies, but is a more fragile approach.
    1.27 +//
    1.28 +#define LAZY_INIT
    1.29 +
    1.30 +extern "C" {
    1.31 +
    1.32 +//
    1.33 +// Dummy versions of CodeWarrior runtime functions.
    1.34 +//
    1.35 +// These are only called when we are linked against the DLL version of the runtime, or if these
    1.36 +// functions aren't present in the static runtime.
    1.37 +//
    1.38 +// The original functions are defined in:
    1.39 +//   c:/apps/Metrowerks/OEM3.1/Symbian_Support/MSL/MSL_C/MSL_Win32/Src/ThreadLocalData.c
    1.40 +//   c:/apps/Metrowerks/OEM3.1/Symbian_Support/MSL/MSL_C/MSL_Win32/Src/startup.win32.c
    1.41 +//
    1.42 +
    1.43 +#ifdef LAZY_INIT
    1.44 +	
    1.45 +extern int _InitializeThreadDataIndex(void);
    1.46 +extern int *__get_MSL_init_count(void);
    1.47 +	
    1.48 +__declspec(weak) int *__get_MSL_init_count(void)
    1.49 +	{
    1.50 +	return NULL;
    1.51 +	}
    1.52 +	
    1.53 +#else
    1.54 +
    1.55 +extern int _CRTStartup();
    1.56 +	
    1.57 +#endif
    1.58 +	
    1.59 +extern void _CleanUpMSL(void);
    1.60 +
    1.61 +}
    1.62 +
    1.63 +TBool InitCWRuntime()
    1.64 +	{
    1.65 +#ifdef LAZY_INIT
    1.66 +	return ETrue;
    1.67 +#else
    1.68 +	return _CRTStartup();
    1.69 +#endif
    1.70 +	}
    1.71 +
    1.72 +TBool CleanupCWRuntime()
    1.73 +	{
    1.74 +#ifdef LAZY_INIT
    1.75 +	int* init_count_ptr = __get_MSL_init_count();
    1.76 +	if (!init_count_ptr)					// if we couldn't link this function, don't attempt cleanup
    1.77 +		return ETrue;		
    1.78 +	if (!_InitializeThreadDataIndex())		// make sure runtime is initialised to known state
    1.79 +		return EFalse;
    1.80 +	if (++(*init_count_ptr) != 1)			// make it look like _CRTStartup was called
    1.81 +		return EFalse;
    1.82 +#else
    1.83 +	if (*__get_MSL_init_count() < 1)		// _CRTStartup should have been called at least once
    1.84 +		return EFalse;
    1.85 +	*__get_MSL_init_count() = 1;			// reset to one so _CleanUpMSL runs
    1.86 +#endif
    1.87 +	_CleanUpMSL();							// call into runtime to do cleanup
    1.88 +	return ETrue;
    1.89 +	}