108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
#ifndef NDSTACKWALK_h
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#define NDSTACKWALK_h
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/**
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* $LicenseInfo:firstyear=2013&license=fsviewerlgpl$
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* Phoenix Firestorm Viewer Source Code
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* Copyright (C) 2013, Nicky Dasmijn
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* The Phoenix Firestorm Project, Inc., 1831 Oakwood Drive, Fairmont, Minnesota 56031-3225 USA
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* http://www.firestormviewer.org
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* $/LicenseInfo$
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*/
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namespace nd
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{
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namespace debugging
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{
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struct sEBP
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{
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sEBP *pPrev;
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void *pRet;
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};
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class IFunctionStack
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{
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public:
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virtual ~IFunctionStack()
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{}
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virtual bool isFull() const = 0;
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virtual unsigned int getDepth() const = 0;
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virtual unsigned int getMaxDepth() const = 0;
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virtual void pushReturnAddress( void *aReturnAddress ) = 0;
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virtual void* getReturnAddress( unsigned int aFrame ) const = 0;
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};
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extern "C"
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{
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#if defined( LL_WINDOWS )
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__forceinline __declspec(naked) sEBP* getEBP()
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{
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__asm{
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MOV EAX,EBP
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RET
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}
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}
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__forceinline __declspec(naked) sEBP* getStackTop()
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{
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__asm{
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MOV EAX,FS:[0x04]
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RET
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}
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}
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__forceinline __declspec(naked) sEBP* getStackBottom()
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{
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__asm{
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MOV EAX,FS:[0x08]
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RET
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}
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}
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#elif defined( LL_LINUX )
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asm( "getEBP: MOVL %EBP,%EAX; RET;" );
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sEBP* getEBP();
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inline void* getStackTop()
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{ return 0; }
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inline void* getStackBottom()
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{ return 0; }
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#else
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inline sEBP* getEBP()
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{ return 0; }
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inline void* getStackTop()
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{ return 0; }
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inline void* getStackBottom()
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{ return 0; }
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#endif
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}
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inline void getCallstack( sEBP *aEBP, IFunctionStack *aStack )
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{
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sEBP *pEBP(aEBP);
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void *pTop = getStackTop();
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void *pBottom = getStackBottom();
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while( pBottom < pEBP && pEBP < pTop && pEBP->pRet && !aStack->isFull() )
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{
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aStack->pushReturnAddress( pEBP->pRet );
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pEBP = pEBP->pPrev;
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}
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}
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}
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}
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#endif
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