kernel/eka/euser/epoc/arm/uc_dll.cia
author Tom Cosgrove <tom.cosgrove@nokia.com>
Fri, 28 May 2010 16:29:07 +0100
changeset 30 8aab599e3476
parent 0 a41df078684a
permissions -rw-r--r--
Fix for bug 2283 (RVCT 4.0 support is missing from PDK 3.0.h) Have multiple extension sections in the bld.inf, one for each version of the compiler. The RVCT version building the tools will build the runtime libraries for its version, but make sure we extract all the other versions from zip archives. Also add the archive for RVCT4.

// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
// e32\euser\epoc\arm\uc_dll.cia
// 
//

#include <e32cia.h>
#include <u32std.h>

extern "C" {

extern TInt _E32Dll_Body(TInt);

__NAKED__ TInt _E32Dll(TInt /*aReason*/)
	{
	// DLL entry point
	EKA2_ENTRY_POINT_VERSION_IDENTIFIER;	// DUMMY INSTRUCTION TO INDICATE EKA2 ENTRY POINT
	asm("ldr r12, 1f ");
	__JUMP(,r12);

	asm(".word 0 ");			// loader will replace with code seg unique ID
								// for RAM-loaded code segment
								// MUST BE AT OFFSET 12 FROM ENTRY POINT

	asm("1: ");
	asm(".word _E32Dll_Body ");

#ifdef __ARMCC__
#ifdef __SUPPORT_CPP_EXCEPTIONS__


  /* It is possible no functions included in the image require
   * a handler table. Therefore make only a weak reference to
   * the handler table base symbol, which may be absent.
   */
  extern |.ARM.exidx$$Base|;
  extern |.ARM.exidx$$Limit|;
  extern |.ARM.extab$$Base| [WEAK];
  extern |Image$$ER_RO$$Base|;
  extern |Image$$ER_RO$$Limit|;
  export |Symbian$$CPP$$Exception$$Descriptor|;

  /* Symbian$$CPP$$Exception$$Descriptor is referenced from the Image header.
   * A pointer to this object can be cached by the unwinder in the UCB
   * on the assumption that the EHT for the previous frame is likely to be right
   * for the current frame
   */

|Symbian$$CPP$$Exception$$Descriptor|
#ifdef __LEAVE_EQUALS_THROW__
|Symbian$$eit_base|  		dcd |.ARM.exidx$$Base|;   /* index table base */
|Symbian$$eit_limit|  		dcd |.ARM.exidx$$Limit| ;  /* index table limit */
#endif
#if __ARMCC_VERSION > 220000
|Symbian$$code_seg_base| 	dcd |Image$$ER_RO$$Base| + 1 ; /* RO segment base + mark as ehabi v2 */
|Symbian$$code_seg_limit| 	dcd |Image$$ER_RO$$Limit| ;/* RO segment limit */
|Symbian$$reserved|		dcd 0 ; /* reserved for future use */
#else
|Symbian$$code_seg_base| 	dcd |Image$$ER_RO$$Base| ; /* RO segment base */
|Symbian$$code_seg_limit| 	dcd |Image$$ER_RO$$Limit| ;/* RO segment limit */
#endif

#endif
#endif
	}
}