/*

* Copyright (c) 2001-2006 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:  EAP and WLAN authentication protocols.

*

*/

// This is enumeration of EAPOL source code.

#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

	#undef EAP_FILE_NUMBER_ENUM

	#define EAP_FILE_NUMBER_ENUM 17 

	#undef EAP_FILE_NUMBER_DATE 

	#define EAP_FILE_NUMBER_DATE 1127594498 

#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

#if defined(unix)

	#include <unistd.h>

#endif

#if defined(WIN32)

	#include <windows.h>

#endif

#if !defined(__SYMBIAN32__)

	#include <stdlib.h>

	#include <stdio.h>

	#include <setjmp.h>

	#include <assert.h>

#endif //#if !defined(__SYMBIAN32__)

#include "eap_am_stack_trace.h"

#include "abs_eap_am_tools.h"

#include "eap_am_tools.h"

/********************************************************************/

EAP_FUNC_EXPORT stack_trace::~stack_trace()

{

}

/********************************************************************/

EAP_FUNC_EXPORT stack_trace::stack_trace(abs_eap_am_tools_c * const tools)

: m_am_tools(tools)

{

}

/********************************************************************/

EAP_FUNC_EXPORT void stack_trace::trace_frames(

	unsigned long *bp

)

{

#if !defined(__SYMBIAN32__)

	unsigned long *tmp_bp = bp;

	if (bp == 0)

	{

		return;

	}

	while ( tmp_bp != 0x0 && tmp_bp < reinterpret_cast<unsigned long *>(0xbffff8ec)

#if defined(linux)

			&& tmp_bp > reinterpret_cast<unsigned long *>(0xbf800000)

#else

			&& tmp_bp < reinterpret_cast<unsigned long *>(0x77000000)

#endif

			   )

	{

		EAP_TRACE_ALWAYS(m_am_tools, TRACE_FLAGS_DEFAULT,

						(EAPL("function: 0x%08x\n"),

						 reinterpret_cast<void *>(*(tmp_bp+1))));

		tmp_bp = reinterpret_cast<unsigned long *>(*tmp_bp);

	}

#else

	EAP_UNREFERENCED_PARAMETER(bp);

#endif //#if !defined(__SYMBIAN32__)

}

/********************************************************************/

EAP_FUNC_EXPORT void stack_trace::trace(const void * const memory_address)

{

#if defined(__SYMBIAN32__) && (defined(USE_EAP_STACK_TRACE) || defined(USE_EAP_ASSERT_STACK_TRACE))

	u32_t current_sp = 0;

#if 0

	// Thumb does not support inline assembler.

	__asm

	{

		MOV current_sp, __current_sp()

	}

#else

	current_sp = reinterpret_cast<u32_t>(&current_sp);

#endif

	if (current_sp == 0)

	{

		EAP_TRACE_ERROR(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("Cannot obtain current stack pointer.\n")));

	}

	TThreadStackInfo aInfo;

	RThread current_thread;

	if (current_thread.StackInfo(aInfo) != KErrNone)

	{

		EAP_TRACE_ERROR(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("Cannot obtain stack information.\n")));

	}

	if (aInfo.iBase < current_sp)

	{

		EAP_TRACE_ERROR(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("Stack start %d < current stack pointer %d.\n"),

			 aInfo.iBase,

			 current_sp));

	}

	u32_t *start_address = reinterpret_cast<u32_t *>(current_sp);

	u32_t *address = start_address;

	EAP_TRACE_ALWAYS(m_am_tools, TRACE_FLAGS_DEFAULT,

					(EAPL("address 0x%08x, accessed from:.\n"),

					 memory_address));

	while (reinterpret_cast<TLinAddr>(address) >= aInfo.iLimit)

	{

		EAP_TRACE_ALWAYS(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("stack address 0x%08x: 0x%08x\n"),

			 address,

			 *address));

		--address;

	}

	EAP_TRACE_ALWAYS(m_am_tools, TRACE_FLAGS_DEFAULT,

					(EAPL("\n")));

	EAP_TRACE_ALWAYS(m_am_tools, TRACE_FLAGS_DEFAULT,

					(EAPL("address 0x%08x, accessed from:.\n"),

					 memory_address));

	address = start_address;

	while (reinterpret_cast<TLinAddr>(address) < aInfo.iBase)

	{

		EAP_TRACE_ALWAYS(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("stack address 0x%08x: 0x%08x\n"),

			 address,

			 *address));

		++address;

	}

#elif (defined(unix) || defined(WIN32)) && (defined(USE_EAP_STACK_TRACE) || defined(USE_EAP_ASSERT_STACK_TRACE))

	jmp_buf tmp_buf;

#if defined(linux)

	_setjmp( tmp_buf );

#else

	setjmp( tmp_buf );

#endif

	EAP_TRACE_ALWAYS(m_am_tools, TRACE_FLAGS_DEFAULT,

					(EAPL("address 0x%08x, accessed from:.\n"),

					 memory_address));

	trace_frames(

		#if defined(linux)

			reinterpret_cast<unsigned long *>(tmp_buf->__jmpbuf[JB_BP])

		#elif defined(WIN32)

			reinterpret_cast<unsigned long *>(((_JUMP_BUFFER *)tmp_buf)->Ebp)

		#elif defined(cygwin)

			reinterpret_cast<unsigned long *>(tmp_buf[0].ebp)

		#else

			reinterpret_cast<unsigned long *>(tmp_buf->__ebp)

		#endif

			);

#else

	EAP_UNREFERENCED_PARAMETER(memory_address);

#endif //#if defined(unix) || defined(WIN32)

}

/********************************************************************/

/* End. */