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 #include <pch.h> 00033 #include "Emu/PPC64Linux/PPC64LinuxLoader.h" 00034 00035 #include "Emu/Utility/System/Memory/MemorySystem.h" 00036 #include "Emu/Utility/System/Loader/ElfReader.h" 00037 #include "Emu/Utility/System/Memory/MemoryUtility.h" 00038 00039 #include "Emu/PPC64Linux/PPC64Info.h" 00040 00041 00042 using namespace std; 00043 using namespace boost; 00044 using namespace Onikiri; 00045 using namespace Onikiri::EmulatorUtility; 00046 using namespace Onikiri::PPC64Linux; 00047 00048 namespace { 00049 const u16 MACHINE_PPC64 = 0x0015; 00050 } 00051 00052 PPC64LinuxLoader::PPC64LinuxLoader() 00053 : Linux64Loader(MACHINE_PPC64) // machine = PPC64 00054 { 00055 } 00056 00057 PPC64LinuxLoader::~PPC64LinuxLoader() 00058 { 00059 } 00060 00061 u64 PPC64LinuxLoader::GetInitialRegValue(int index) const 00062 { 00063 const int STACK_POINTER_REGNUM = 1; 00064 const int TOC_POINTER_REGNUM = 2; 00065 const int TLS_POINTER_REGNUM = 13; 00066 00067 switch (index) { 00068 case STACK_POINTER_REGNUM: 00069 return GetInitialSp(); 00070 case TOC_POINTER_REGNUM: 00071 return m_startTocPointer; 00072 case PPC64Info::REG_FPSCR: 00073 return 0; 00074 case TLS_POINTER_REGNUM: 00075 // <TODO> 00076 default: 00077 return 0; 00078 } 00079 } 00080 00081 u64 PPC64LinuxLoader::CalculateEntryPoint(EmulatorUtility::MemorySystem* memory, const ElfReader& elfReader) 00082 { 00083 // ELFGg|Cg_startfXNv^i[Coffset 0|C^i[ 00084 //return memory->ReadMemory(elfReader.GetEntryPoint(), 8); 00085 EmuMemAccess access( elfReader.GetEntryPoint(), 8 ); 00086 memory->ReadMemory( &access ); 00087 return access.value; 00088 } 00089 00090 00091 void PPC64LinuxLoader::CalculateOthers(EmulatorUtility::MemorySystem* memory, const ElfReader& elfReader) 00092 { 00093 // fXNv^offset 8toc 00094 //m_startTocPointer = memory->ReadMemory(elfReader.GetEntryPoint()+8, 8); 00095 00096 EmuMemAccess access( elfReader.GetEntryPoint()+8, 8 ); 00097 memory->ReadMemory( &access ); 00098 m_startTocPointer = access.value; 00099 } 00100 00101 // AT_DCACHEBSIZE: cache_line_size 00102 // AT_SECURE: dl-support.c, enbl-secure.c 00103