00001 // 00002 // Copyright (c) 2005-2008 Kenichi Watanabe. 00003 // Copyright (c) 2005-2008 Yasuhiro Watari. 00004 // Copyright (c) 2005-2008 Hironori Ichibayashi. 00005 // Copyright (c) 2008-2009 Kazuo Horio. 00006 // Copyright (c) 2009-2013 Naruki Kurata. 00007 // Copyright (c) 2005-2013 Ryota Shioya. 00008 // Copyright (c) 2005-2013 Masahiro Goshima. 00009 // 00010 // This software is provided 'as-is', without any express or implied 00011 // warranty. In no event will the authors be held liable for any damages 00012 // arising from the use of this software. 00013 // 00014 // Permission is granted to anyone to use this software for any purpose, 00015 // including commercial applications, and to alter it and redistribute it 00016 // freely, subject to the following restrictions: 00017 // 00018 // 1. The origin of this software must not be misrepresented; you must not 00019 // claim that you wrote the original software. If you use this software 00020 // in a product, an acknowledgment in the product documentation would be 00021 // appreciated but is not required. 00022 // 00023 // 2. Altered source versions must be plainly marked as such, and must not be 00024 // misrepresented as being the original software. 00025 // 00026 // 3. This notice may not be removed or altered from any source 00027 // distribution. 00028 // 00029 // 00030 00031 00032 #ifndef __RAS_H__ 00033 #define __RAS_H__ 00034 00035 #include "Interface/Addr.h" 00036 #include "Interface/OpStateIF.h" 00037 #include "Sim/Foundation/Checkpoint/CheckpointedData.h" 00038 00039 #include "Env/Param/ParamExchange.h" 00040 #include "Sim/Foundation/Resource/ResourceNode.h" 00041 00042 namespace Onikiri 00043 { 00044 class SimPC; 00045 00046 // return address stack 00047 class RAS : public PhysicalResourceNode 00048 { 00049 private: 00050 CheckpointMaster* m_checkpointMaster; 00051 CheckpointedData<int> m_stackTop; // Stackgbvヲ 00052 std::vector<PC> m_stack; 00053 00054 CheckpointedData<int> m_backupStackTop; 00055 static const int MAX_BACKUP_SIZE = 1; 00056 typedef boost::array< PC, MAX_BACKUP_SIZE > BackupStack; 00057 CheckpointedData< BackupStack > m_backupStack; 00058 bool m_enableBackup; 00059 00060 int m_stackSize; 00061 public: 00062 // parameter mapping 00063 BEGIN_PARAM_MAP( GetParamPath() ) 00064 PARAM_ENTRY( "@StackSize", m_stackSize ) 00065 PARAM_ENTRY( "@EnableBackup", m_enableBackup ) 00066 END_PARAM_MAP() 00067 00068 BEGIN_RESOURCE_MAP() 00069 RESOURCE_ENTRY( CheckpointMaster, "checkpointMaster", m_checkpointMaster ) 00070 END_RESOURCE_MAP() 00071 00072 RAS(); 00073 virtual ~RAS(); 00074 00075 void Initialize(InitPhase phase); 00076 00077 // call PCpush 00078 void Push(const SimPC& pc); 00079 00080 // return PCPop 00081 SimPC Pop(); 00082 00083 // accessors 00084 int GetStackSize() { return m_stackSize; } 00085 00086 int PointStackPos(int basePos, int stackSize, int offset) 00087 { return (basePos + stackSize + offset) % stackSize; } 00088 }; 00089 00090 }; // namespace Onikiri 00091 00092 #endif // __RAS_H__ 00093