diff options
| -rw-r--r-- | src/core/CMakeLists.txt | 5 | ||||
| -rw-r--r-- | src/core/core.vcxproj | 5 | ||||
| -rw-r--r-- | src/core/core.vcxproj.filters | 15 | ||||
| -rw-r--r-- | src/core/loader/elf.cpp | 190 | ||||
| -rw-r--r-- | src/core/loader/elf.h (renamed from src/core/loader/elf_types.h) | 232 | ||||
| -rw-r--r-- | src/core/loader/elf_reader.cpp | 190 | ||||
| -rw-r--r-- | src/core/loader/elf_reader.h | 75 | ||||
| -rw-r--r-- | src/core/loader/loader.cpp | 2 |
8 files changed, 342 insertions, 372 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index 3f2d99e44..634f4d572 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -1,6 +1,6 @@ set(SRCS core.cpp core_timing.cpp - loader/elf_reader.cpp + loader/elf.cpp loader/loader.cpp loader/ncch.cpp mem_map.cpp @@ -51,8 +51,7 @@ set(SRCS core.cpp set(HEADERS core.h core_timing.h - loader/elf_reader.h - loader/elf_types.h + loader/elf.h loader/loader.h loader/ncch.h mem_map.h diff --git a/src/core/core.vcxproj b/src/core/core.vcxproj index bda89ff1d..e2216760a 100644 --- a/src/core/core.vcxproj +++ b/src/core/core.vcxproj @@ -181,7 +181,7 @@ <ClCompile Include="hw\gpu.cpp" /> <ClCompile Include="hw\hw.cpp" /> <ClCompile Include="hw\ndma.cpp" /> - <ClCompile Include="loader\elf_reader.cpp" /> + <ClCompile Include="loader\elf.cpp" /> <ClCompile Include="loader\loader.cpp" /> <ClCompile Include="loader\ncch.cpp" /> <ClCompile Include="mem_map.cpp" /> @@ -232,8 +232,7 @@ <ClInclude Include="hw\gpu.h" /> <ClInclude Include="hw\hw.h" /> <ClInclude Include="hw\ndma.h" /> - <ClInclude Include="loader\elf_reader.h" /> - <ClInclude Include="loader\elf_types.h" /> + <ClInclude Include="loader\elf.h" /> <ClInclude Include="loader\loader.h" /> <ClInclude Include="loader\ncch.h" /> <ClInclude Include="mem_map.h" /> diff --git a/src/core/core.vcxproj.filters b/src/core/core.vcxproj.filters index 84f6160b5..91d3292da 100644 --- a/src/core/core.vcxproj.filters +++ b/src/core/core.vcxproj.filters @@ -167,15 +167,15 @@ <ClCompile Include="hle\service\ndm.cpp"> <Filter>hle\service</Filter> </ClCompile> - <ClCompile Include="loader\elf_reader.cpp"> - <Filter>loader</Filter> - </ClCompile> <ClCompile Include="loader\loader.cpp"> <Filter>loader</Filter> </ClCompile> <ClCompile Include="loader\ncch.cpp"> <Filter>loader</Filter> </ClCompile> + <ClCompile Include="loader\elf.cpp"> + <Filter>loader</Filter> + </ClCompile> </ItemGroup> <ItemGroup> <ClInclude Include="arm\disassembler\arm_disasm.h"> @@ -305,18 +305,15 @@ <ClInclude Include="hle\service\ndm.h"> <Filter>hle\service</Filter> </ClInclude> - <ClInclude Include="loader\elf_reader.h"> - <Filter>loader</Filter> - </ClInclude> - <ClInclude Include="loader\elf_types.h"> - <Filter>loader</Filter> - </ClInclude> <ClInclude Include="loader\loader.h"> <Filter>loader</Filter> </ClInclude> <ClInclude Include="loader\ncch.h"> <Filter>loader</Filter> </ClInclude> + <ClInclude Include="loader\elf.h"> + <Filter>loader</Filter> + </ClInclude> </ItemGroup> <ItemGroup> <Text Include="CMakeLists.txt" /> diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp new file mode 100644 index 000000000..153c30f51 --- /dev/null +++ b/src/core/loader/elf.cpp @@ -0,0 +1,190 @@ +// Copyright 2013 Dolphin Emulator Project +// Licensed under GPLv2 +// Refer to the license.txt file included. + +#include <string> + +#include "common/common.h" + +#include "common/symbols.h" +#include "core/mem_map.h" +#include "core/loader/elf.h" + +//void bswap(Elf32_Word &w) {w = Common::swap32(w);} +//void bswap(Elf32_Half &w) {w = Common::swap16(w);} + +#define bswap(w) w // Dirty bswap disable for now... 3DS is little endian, anyway + +static void byteswapHeader(Elf32_Ehdr &ELF_H) +{ + bswap(ELF_H.e_type); + bswap(ELF_H.e_machine); + bswap(ELF_H.e_ehsize); + bswap(ELF_H.e_phentsize); + bswap(ELF_H.e_phnum); + bswap(ELF_H.e_shentsize); + bswap(ELF_H.e_shnum); + bswap(ELF_H.e_shstrndx); + bswap(ELF_H.e_version); + bswap(ELF_H.e_entry); + bswap(ELF_H.e_phoff); + bswap(ELF_H.e_shoff); + bswap(ELF_H.e_flags); +} + +static void byteswapSegment(Elf32_Phdr &sec) +{ + bswap(sec.p_align); + bswap(sec.p_filesz); + bswap(sec.p_flags); + bswap(sec.p_memsz); + bswap(sec.p_offset); + bswap(sec.p_paddr); + bswap(sec.p_vaddr); + bswap(sec.p_type); +} + +static void byteswapSection(Elf32_Shdr &sec) +{ + bswap(sec.sh_addr); + bswap(sec.sh_addralign); + bswap(sec.sh_entsize); + bswap(sec.sh_flags); + bswap(sec.sh_info); + bswap(sec.sh_link); + bswap(sec.sh_name); + bswap(sec.sh_offset); + bswap(sec.sh_size); + bswap(sec.sh_type); +} + +ElfReader::ElfReader(void *ptr) +{ + base = (char*)ptr; + base32 = (u32 *)ptr; + header = (Elf32_Ehdr*)ptr; + byteswapHeader(*header); + + segments = (Elf32_Phdr *)(base + header->e_phoff); + sections = (Elf32_Shdr *)(base + header->e_shoff); + + entryPoint = header->e_entry; + + LoadSymbols(); +} + +const char *ElfReader::GetSectionName(int section) const +{ + if (sections[section].sh_type == SHT_NULL) + return nullptr; + + int nameOffset = sections[section].sh_name; + char *ptr = (char*)GetSectionDataPtr(header->e_shstrndx); + + if (ptr) + return ptr + nameOffset; + else + return nullptr; +} + +bool ElfReader::LoadInto(u32 vaddr) +{ + DEBUG_LOG(MASTER_LOG, "String section: %i", header->e_shstrndx); + + // Should we relocate? + bRelocate = (header->e_type != ET_EXEC); + + if (bRelocate) + { + DEBUG_LOG(MASTER_LOG, "Relocatable module"); + entryPoint += vaddr; + } + else + { + DEBUG_LOG(MASTER_LOG, "Prerelocated executable"); + } + + INFO_LOG(MASTER_LOG, "%i segments:", header->e_phnum); + + // First pass : Get the bits into RAM + u32 segmentVAddr[32]; + + u32 baseAddress = bRelocate ? vaddr : 0; + + for (int i = 0; i < header->e_phnum; i++) + { + Elf32_Phdr *p = segments + i; + + INFO_LOG(MASTER_LOG, "Type: %i Vaddr: %08x Filesz: %i Memsz: %i ", p->p_type, p->p_vaddr, p->p_filesz, p->p_memsz); + + if (p->p_type == PT_LOAD) + { + segmentVAddr[i] = baseAddress + p->p_vaddr; + u32 writeAddr = segmentVAddr[i]; + + const u8 *src = GetSegmentPtr(i); + u8 *dst = Memory::GetPointer(writeAddr); + u32 srcSize = p->p_filesz; + u32 dstSize = p->p_memsz; + u32 *s = (u32*)src; + u32 *d = (u32*)dst; + for (int j = 0; j < (int)(srcSize + 3) / 4; j++) + { + *d++ = /*_byteswap_ulong*/(*s++); + } + if (srcSize < dstSize) + { + //memset(dst + srcSize, 0, dstSize-srcSize); //zero out bss + } + INFO_LOG(MASTER_LOG, "Loadable Segment Copied to %08x, size %08x", writeAddr, p->p_memsz); + } + } + + + INFO_LOG(MASTER_LOG, "Done loading."); + return true; +} + +SectionID ElfReader::GetSectionByName(const char *name, int firstSection) const +{ + for (int i = firstSection; i < header->e_shnum; i++) + { + const char *secname = GetSectionName(i); + + if (secname != nullptr && strcmp(name, secname) == 0) + return i; + } + return -1; +} + +bool ElfReader::LoadSymbols() +{ + bool hasSymbols = false; + SectionID sec = GetSectionByName(".symtab"); + if (sec != -1) + { + int stringSection = sections[sec].sh_link; + const char *stringBase = (const char *)GetSectionDataPtr(stringSection); + + //We have a symbol table! + Elf32_Sym *symtab = (Elf32_Sym *)(GetSectionDataPtr(sec)); + int numSymbols = sections[sec].sh_size / sizeof(Elf32_Sym); + for (int sym = 0; sym < numSymbols; sym++) + { + int size = symtab[sym].st_size; + if (size == 0) + continue; + + // int bind = symtab[sym].st_info >> 4; + int type = symtab[sym].st_info & 0xF; + + const char *name = stringBase + symtab[sym].st_name; + + Symbols::Add(symtab[sym].st_value, name, size, type); + + hasSymbols = true; + } + } + + return hasSymbols; +} diff --git a/src/core/loader/elf_types.h b/src/core/loader/elf.h index f1bf3db72..2e6b80982 100644 --- a/src/core/loader/elf_types.h +++ b/src/core/loader/elf.h @@ -1,34 +1,34 @@ -// Copyright 2013 Dolphin Emulator Project +// Copyright 2013 Dolphin Emulator Project / Citra Emulator Project // Licensed under GPLv2 // Refer to the license.txt file included. #pragma once +#include "common/common.h" + // ELF Header Constants // File type -enum ElfType -{ - ET_NONE = 0, - ET_REL = 1, - ET_EXEC = 2, - ET_DYN = 3, - ET_CORE = 4, - ET_LOPROC = 0xFF00, - ET_HIPROC = 0xFFFF, +enum ElfType { + ET_NONE = 0, + ET_REL = 1, + ET_EXEC = 2, + ET_DYN = 3, + ET_CORE = 4, + ET_LOPROC = 0xFF00, + ET_HIPROC = 0xFFFF, }; // Machine/Architecture -enum ElfMachine -{ - EM_NONE = 0, - EM_M32 = 1, - EM_SPARC = 2, - EM_386 = 3, - EM_68K = 4, - EM_88K = 5, - EM_860 = 7, - EM_MIPS = 8 +enum ElfMachine { + EM_NONE = 0, + EM_M32 = 1, + EM_SPARC = 2, + EM_386 = 3, + EM_68K = 4, + EM_88K = 5, + EM_860 = 7, + EM_MIPS = 8 }; // File version @@ -62,8 +62,6 @@ enum ElfMachine #define ELFDATA2LSB 1 #define ELFDATA2MSB 2 - - // Sections constants // Section indexes @@ -96,14 +94,13 @@ enum ElfMachine // Custom section types #define SHT_PSPREL 0x700000a0 - // Section flags enum ElfSectionFlags { - SHF_WRITE = 0x1, - SHF_ALLOC = 0x2, - SHF_EXECINSTR = 0x4, - SHF_MASKPROC = 0xF0000000, + SHF_WRITE = 0x1, + SHF_ALLOC = 0x2, + SHF_EXECINSTR = 0x4, + SHF_MASKPROC = 0xF0000000, }; // Symbol binding @@ -188,63 +185,58 @@ typedef unsigned int Elf32_Off; typedef signed int Elf32_Sword; typedef unsigned int Elf32_Word; - // ELF file header -struct Elf32_Ehdr -{ - unsigned char e_ident[EI_NIDENT]; - Elf32_Half e_type; - Elf32_Half e_machine; - Elf32_Word e_version; - Elf32_Addr e_entry; - Elf32_Off e_phoff; - Elf32_Off e_shoff; - Elf32_Word e_flags; - Elf32_Half e_ehsize; - Elf32_Half e_phentsize; - Elf32_Half e_phnum; - Elf32_Half e_shentsize; - Elf32_Half e_shnum; - Elf32_Half e_shstrndx; +struct Elf32_Ehdr { + unsigned char e_ident[EI_NIDENT]; + Elf32_Half e_type; + Elf32_Half e_machine; + Elf32_Word e_version; + Elf32_Addr e_entry; + Elf32_Off e_phoff; + Elf32_Off e_shoff; + Elf32_Word e_flags; + Elf32_Half e_ehsize; + Elf32_Half e_phentsize; + Elf32_Half e_phnum; + Elf32_Half e_shentsize; + Elf32_Half e_shnum; + Elf32_Half e_shstrndx; }; // Section header -struct Elf32_Shdr -{ - Elf32_Word sh_name; - Elf32_Word sh_type; - Elf32_Word sh_flags; - Elf32_Addr sh_addr; - Elf32_Off sh_offset; - Elf32_Word sh_size; - Elf32_Word sh_link; - Elf32_Word sh_info; - Elf32_Word sh_addralign; - Elf32_Word sh_entsize; +struct Elf32_Shdr { + Elf32_Word sh_name; + Elf32_Word sh_type; + Elf32_Word sh_flags; + Elf32_Addr sh_addr; + Elf32_Off sh_offset; + Elf32_Word sh_size; + Elf32_Word sh_link; + Elf32_Word sh_info; + Elf32_Word sh_addralign; + Elf32_Word sh_entsize; }; // Segment header -struct Elf32_Phdr -{ - Elf32_Word p_type; - Elf32_Off p_offset; - Elf32_Addr p_vaddr; - Elf32_Addr p_paddr; - Elf32_Word p_filesz; - Elf32_Word p_memsz; - Elf32_Word p_flags; - Elf32_Word p_align; +struct Elf32_Phdr { + Elf32_Word p_type; + Elf32_Off p_offset; + Elf32_Addr p_vaddr; + Elf32_Addr p_paddr; + Elf32_Word p_filesz; + Elf32_Word p_memsz; + Elf32_Word p_flags; + Elf32_Word p_align; }; // Symbol table entry -struct Elf32_Sym -{ - Elf32_Word st_name; - Elf32_Addr st_value; - Elf32_Word st_size; - unsigned char st_info; - unsigned char st_other; - Elf32_Half st_shndx; +struct Elf32_Sym { + Elf32_Word st_name; + Elf32_Addr st_value; + Elf32_Word st_size; + unsigned char st_info; + unsigned char st_other; + Elf32_Half st_shndx; }; #define ELF32_ST_BIND(i) ((i)>>4) @@ -252,30 +244,88 @@ struct Elf32_Sym #define ELF32_ST_INFO(b,t) (((b)<<4)+((t)&0xf)) // Relocation entries -struct Elf32_Rel -{ - Elf32_Addr r_offset; - Elf32_Word r_info; +struct Elf32_Rel { + Elf32_Addr r_offset; + Elf32_Word r_info; }; -struct Elf32_Rela -{ - Elf32_Addr r_offset; - Elf32_Word r_info; - Elf32_Sword r_addend; +struct Elf32_Rela { + Elf32_Addr r_offset; + Elf32_Word r_info; + Elf32_Sword r_addend; }; #define ELF32_R_SYM(i) ((i)>>8) #define ELF32_R_TYPE(i) ((unsigned char)(i)) #define ELF32_R_INFO(s,t) (((s)<<8 )+(unsigned char)(t)) +struct Elf32_Dyn { + Elf32_Sword d_tag; + union { + Elf32_Word d_val; + Elf32_Addr d_ptr; + } d_un; +}; -struct Elf32_Dyn -{ - Elf32_Sword d_tag; - union - { - Elf32_Word d_val; - Elf32_Addr d_ptr; - } d_un; +enum KnownElfTypes { + KNOWNELF_PSP = 0, + KNOWNELF_DS = 1, + KNOWNELF_GBA = 2, + KNOWNELF_GC = 3, +}; + +typedef int SectionID; + +class ElfReader { +private: + char *base; + u32 *base32; + + Elf32_Ehdr *header; + Elf32_Phdr *segments; + Elf32_Shdr *sections; + + u32 *sectionAddrs; + bool bRelocate; + u32 entryPoint; + +public: + ElfReader(void *ptr); + ~ElfReader() { } + + u32 Read32(int off) const { return base32[off >> 2]; } + + // Quick accessors + ElfType GetType() const { return (ElfType)(header->e_type); } + ElfMachine GetMachine() const { return (ElfMachine)(header->e_machine); } + u32 GetEntryPoint() const { return entryPoint; } + u32 GetFlags() const { return (u32)(header->e_flags); } + bool LoadInto(u32 vaddr); + bool LoadSymbols(); + + int GetNumSegments() const { return (int)(header->e_phnum); } + int GetNumSections() const { return (int)(header->e_shnum); } + const u8 *GetPtr(int offset) const { return (u8*)base + offset; } + const char *GetSectionName(int section) const; + const u8 *GetSectionDataPtr(int section) const { + if (section < 0 || section >= header->e_shnum) + return nullptr; + if (sections[section].sh_type != SHT_NOBITS) + return GetPtr(sections[section].sh_offset); + else + return nullptr; + } + bool IsCodeSection(int section) const { + return sections[section].sh_type == SHT_PROGBITS; + } + const u8 *GetSegmentPtr(int segment) { + return GetPtr(segments[segment].p_offset); + } + u32 GetSectionAddr(SectionID section) const { return sectionAddrs[section]; } + int GetSectionSize(SectionID section) const { return sections[section].sh_size; } + SectionID GetSectionByName(const char *name, int firstSection = 0) const; //-1 for not found + + bool DidRelocate() { + return bRelocate; + } }; diff --git a/src/core/loader/elf_reader.cpp b/src/core/loader/elf_reader.cpp deleted file mode 100644 index 123747f8e..000000000 --- a/src/core/loader/elf_reader.cpp +++ /dev/null @@ -1,190 +0,0 @@ -// Copyright 2013 Dolphin Emulator Project -// Licensed under GPLv2 -// Refer to the license.txt file included. - -#include <string> - -#include "common/common.h" - -#include "common/symbols.h" -#include "core/mem_map.h" -#include "core/loader/elf_reader.h" - -//void bswap(Elf32_Word &w) {w = Common::swap32(w);} -//void bswap(Elf32_Half &w) {w = Common::swap16(w);} - -#define bswap(w) w // Dirty bswap disable for now... 3DS is little endian, anyway - -static void byteswapHeader(Elf32_Ehdr &ELF_H) -{ - bswap(ELF_H.e_type); - bswap(ELF_H.e_machine); - bswap(ELF_H.e_ehsize); - bswap(ELF_H.e_phentsize); - bswap(ELF_H.e_phnum); - bswap(ELF_H.e_shentsize); - bswap(ELF_H.e_shnum); - bswap(ELF_H.e_shstrndx); - bswap(ELF_H.e_version); - bswap(ELF_H.e_entry); - bswap(ELF_H.e_phoff); - bswap(ELF_H.e_shoff); - bswap(ELF_H.e_flags); -} - -static void byteswapSegment(Elf32_Phdr &sec) -{ - bswap(sec.p_align); - bswap(sec.p_filesz); - bswap(sec.p_flags); - bswap(sec.p_memsz); - bswap(sec.p_offset); - bswap(sec.p_paddr); - bswap(sec.p_vaddr); - bswap(sec.p_type); -} - -static void byteswapSection(Elf32_Shdr &sec) -{ - bswap(sec.sh_addr); - bswap(sec.sh_addralign); - bswap(sec.sh_entsize); - bswap(sec.sh_flags); - bswap(sec.sh_info); - bswap(sec.sh_link); - bswap(sec.sh_name); - bswap(sec.sh_offset); - bswap(sec.sh_size); - bswap(sec.sh_type); -} - -ElfReader::ElfReader(void *ptr) -{ - base = (char*)ptr; - base32 = (u32 *)ptr; - header = (Elf32_Ehdr*)ptr; - byteswapHeader(*header); - - segments = (Elf32_Phdr *)(base + header->e_phoff); - sections = (Elf32_Shdr *)(base + header->e_shoff); - - entryPoint = header->e_entry; - - LoadSymbols(); -} - -const char *ElfReader::GetSectionName(int section) const -{ - if (sections[section].sh_type == SHT_NULL) - return nullptr; - - int nameOffset = sections[section].sh_name; - char *ptr = (char*)GetSectionDataPtr(header->e_shstrndx); - - if (ptr) - return ptr + nameOffset; - else - return nullptr; -} - -bool ElfReader::LoadInto(u32 vaddr) -{ - DEBUG_LOG(MASTER_LOG,"String section: %i", header->e_shstrndx); - - // Should we relocate? - bRelocate = (header->e_type != ET_EXEC); - - if (bRelocate) - { - DEBUG_LOG(MASTER_LOG,"Relocatable module"); - entryPoint += vaddr; - } - else - { - DEBUG_LOG(MASTER_LOG,"Prerelocated executable"); - } - - INFO_LOG(MASTER_LOG,"%i segments:", header->e_phnum); - - // First pass : Get the bits into RAM - u32 segmentVAddr[32]; - - u32 baseAddress = bRelocate?vaddr:0; - - for (int i = 0; i < header->e_phnum; i++) - { - Elf32_Phdr *p = segments + i; - - INFO_LOG(MASTER_LOG, "Type: %i Vaddr: %08x Filesz: %i Memsz: %i ", p->p_type, p->p_vaddr, p->p_filesz, p->p_memsz); - - if (p->p_type == PT_LOAD) - { - segmentVAddr[i] = baseAddress + p->p_vaddr; - u32 writeAddr = segmentVAddr[i]; - - const u8 *src = GetSegmentPtr(i); - u8 *dst = Memory::GetPointer(writeAddr); - u32 srcSize = p->p_filesz; - u32 dstSize = p->p_memsz; - u32 *s = (u32*)src; - u32 *d = (u32*)dst; - for (int j = 0; j < (int)(srcSize + 3) / 4; j++) - { - *d++ = /*_byteswap_ulong*/(*s++); - } - if (srcSize < dstSize) - { - //memset(dst + srcSize, 0, dstSize-srcSize); //zero out bss - } - INFO_LOG(MASTER_LOG,"Loadable Segment Copied to %08x, size %08x", writeAddr, p->p_memsz); - } - } - - - INFO_LOG(MASTER_LOG,"Done loading."); - return true; -} - -SectionID ElfReader::GetSectionByName(const char *name, int firstSection) const -{ - for (int i = firstSection; i < header->e_shnum; i++) - { - const char *secname = GetSectionName(i); - - if (secname != nullptr && strcmp(name, secname) == 0) - return i; - } - return -1; -} - -bool ElfReader::LoadSymbols() -{ - bool hasSymbols = false; - SectionID sec = GetSectionByName(".symtab"); - if (sec != -1) - { - int stringSection = sections[sec].sh_link; - const char *stringBase = (const char *)GetSectionDataPtr(stringSection); - - //We have a symbol table! - Elf32_Sym *symtab = (Elf32_Sym *)(GetSectionDataPtr(sec)); - int numSymbols = sections[sec].sh_size / sizeof(Elf32_Sym); - for (int sym = 0; sym < numSymbols; sym++) - { - int size = symtab[sym].st_size; - if (size == 0) - continue; - - // int bind = symtab[sym].st_info >> 4; - int type = symtab[sym].st_info & 0xF; - - const char *name = stringBase + symtab[sym].st_name; - - Symbols::Add(symtab[sym].st_value, name, size, type); - - hasSymbols = true; - } - } - - return hasSymbols; -} diff --git a/src/core/loader/elf_reader.h b/src/core/loader/elf_reader.h deleted file mode 100644 index 6f0ad84b3..000000000 --- a/src/core/loader/elf_reader.h +++ /dev/null @@ -1,75 +0,0 @@ -// Copyright 2013 Dolphin Emulator Project -// Licensed under GPLv2 -// Refer to the license.txt file included. - -#pragma once - -#include "core/loader/elf_types.h" - -enum KnownElfTypes -{ - KNOWNELF_PSP = 0, - KNOWNELF_DS = 1, - KNOWNELF_GBA = 2, - KNOWNELF_GC = 3, -}; - -typedef int SectionID; - -class ElfReader -{ -private: - char *base; - u32 *base32; - - Elf32_Ehdr *header; - Elf32_Phdr *segments; - Elf32_Shdr *sections; - - u32 *sectionAddrs; - bool bRelocate; - u32 entryPoint; - -public: - ElfReader(void *ptr); - ~ElfReader() { } - - u32 Read32(int off) const { return base32[off>>2]; } - - // Quick accessors - ElfType GetType() const { return (ElfType)(header->e_type); } - ElfMachine GetMachine() const { return (ElfMachine)(header->e_machine); } - u32 GetEntryPoint() const { return entryPoint; } - u32 GetFlags() const { return (u32)(header->e_flags); } - bool LoadInto(u32 vaddr); - bool LoadSymbols(); - - int GetNumSegments() const { return (int)(header->e_phnum); } - int GetNumSections() const { return (int)(header->e_shnum); } - const u8 *GetPtr(int offset) const { return (u8*)base + offset; } - const char *GetSectionName(int section) const; - const u8 *GetSectionDataPtr(int section) const - { - if (section < 0 || section >= header->e_shnum) - return nullptr; - if (sections[section].sh_type != SHT_NOBITS) - return GetPtr(sections[section].sh_offset); - else - return nullptr; - } - bool IsCodeSection(int section) const - { - return sections[section].sh_type == SHT_PROGBITS; - } - const u8 *GetSegmentPtr(int segment) - { - return GetPtr(segments[segment].p_offset); - } - u32 GetSectionAddr(SectionID section) const { return sectionAddrs[section]; } - int GetSectionSize(SectionID section) const { return sections[section].sh_size; } - SectionID GetSectionByName(const char *name, int firstSection = 0) const; //-1 for not found - - bool DidRelocate() { - return bRelocate; - } -}; diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp index 41fa9c32e..d8060c0e6 100644 --- a/src/core/loader/loader.cpp +++ b/src/core/loader/loader.cpp @@ -6,7 +6,7 @@ #include "common/file_util.h" #include "core/loader/loader.h" -#include "core/loader/elf_reader.h" +#include "core/loader/elf.h" #include "core/loader/ncch.h" #include "core/system.h" #include "core/core.h" |