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196
rpcs3/Loader/ELF32.cpp
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196
rpcs3/Loader/ELF32.cpp
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#include "stdafx.h"
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#include "ELF32.h"
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ELF32Loader::ELF32Loader(wxFile& f)
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: elf32_f(f)
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, LoaderBase()
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{
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}
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ELF32Loader::ELF32Loader(const wxString& path)
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: elf32_f(*new wxFile(path))
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, LoaderBase()
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{
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}
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bool ELF32Loader::LoadInfo()
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{
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if(!elf32_f.IsOpened()) return false;
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if(!LoadEhdrInfo()) return false;
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if(!LoadPhdrInfo()) return false;
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if(!LoadShdrInfo()) return false;
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return true;
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}
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bool ELF32Loader::LoadData()
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{
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if(!elf32_f.IsOpened()) return false;
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if(!LoadEhdrData()) return false;
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if(!LoadPhdrData()) return false;
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if(!LoadShdrData()) return false;
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return true;
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}
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bool ELF32Loader::Close()
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{
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return elf32_f.Close();
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}
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bool ELF32Loader::LoadEhdrInfo()
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{
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elf32_f.Seek(0);
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ehdr.Load(elf32_f);
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if(!ehdr.CheckMagic()) return false;
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switch(ehdr.e_machine)
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{
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case MACHINE_PPC64:
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case MACHINE_SPU:
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machine = (Elf_Machine)ehdr.e_machine;
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break;
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default:
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machine = MACHINE_Unknown;
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ConLog.Error("Unknown elf32 type: 0x%x", ehdr.e_machine);
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return false;
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}
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entry = ehdr.GetEntry();
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if(entry == 0)
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{
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ConLog.Error("elf32 error: entry is null!");
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return false;
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}
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return true;
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}
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bool ELF32Loader::LoadPhdrInfo()
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{
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if(ehdr.e_phoff == 0 && ehdr.e_phnum)
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{
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ConLog.Error("LoadPhdr32 error: Program header offset is null!");
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return false;
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}
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elf32_f.Seek(ehdr.e_phoff);
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for(uint i=0; i<ehdr.e_phnum; ++i)
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{
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Elf32_Phdr phdr;
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phdr.Load(elf32_f);
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phdr_arr.AddCpy(phdr);
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}
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return true;
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}
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bool ELF32Loader::LoadShdrInfo()
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{
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elf32_f.Seek(ehdr.e_shoff);
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for(u32 i=0; i<ehdr.e_shnum; ++i)
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{
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Elf32_Shdr shdr;
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shdr.Load(elf32_f);
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shdr_arr.AddCpy(shdr);
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}
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if(ehdr.e_shstrndx >= shdr_arr.GetCount())
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{
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ConLog.Error("LoadShdr64 error: shstrndx too big!");
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return false;
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}
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for(u32 i=0; i<shdr_arr.GetCount(); ++i)
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{
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elf32_f.Seek(shdr_arr[ehdr.e_shstrndx].sh_offset + shdr_arr[i].sh_name);
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wxString name = wxEmptyString;
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while(!elf32_f.Eof())
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{
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char c;
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elf32_f.Read(&c, 1);
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if(c == 0) break;
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name += c;
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}
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shdr_name_arr.Add(name);
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}
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return true;
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}
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bool ELF32Loader::LoadEhdrData()
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{
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#ifdef LOADER_DEBUG
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ConLog.SkipLn();
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ehdr.Show();
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ConLog.SkipLn();
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#endif
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return true;
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}
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bool ELF32Loader::LoadPhdrData()
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{
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for(u32 i=0; i<phdr_arr.GetCount(); ++i)
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{
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phdr_arr[i].Show();
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if(phdr_arr[i].p_type == 0x00000001) //LOAD
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{
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if(phdr_arr[i].p_vaddr != phdr_arr[i].p_paddr)
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{
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ConLog.Warning
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(
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"LoadPhdr32 different load addrs: paddr=0x%8.8x, vaddr=0x%8.8x",
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phdr_arr[i].p_paddr, phdr_arr[i].p_vaddr
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);
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}
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elf32_f.Seek(phdr_arr[i].p_offset);
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elf32_f.Read(Memory.GetMemFromAddr(phdr_arr[i].p_paddr), phdr_arr[i].p_filesz);
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}
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#ifdef LOADER_DEBUG
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ConLog.SkipLn();
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#endif
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}
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return true;
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}
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bool ELF32Loader::LoadShdrData()
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{
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Memory.MemFlags.Clear();
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for(u32 i=0; i<shdr_arr.GetCount(); ++i)
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{
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Elf32_Shdr& shdr = shdr_arr[i];
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#ifdef LOADER_DEBUG
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if(i < shdr_name_arr.GetCount()) ConLog.Write("Name: %s", shdr_name_arr[i]);
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shdr.Show();
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ConLog.SkipLn();
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#endif
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if((shdr.sh_flags & SHF_ALLOC) != SHF_ALLOC) continue;
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const s64 addr = shdr.sh_addr;
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const s64 size = shdr.sh_size;
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MemoryBlock* mem = NULL;
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/*
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switch(shdr.sh_type)
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{
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case SHT_NOBITS:
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if(size == 0) continue;
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memset(&Memory[addr], 0, size);
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case SHT_PROGBITS:
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break;
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}
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*/
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}
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//TODO
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return true;
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}
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