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author | bunnei <ericbunnie@gmail.com> | 2014-06-17 05:18:10 +0200 |
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committer | bunnei <ericbunnie@gmail.com> | 2014-06-17 05:43:33 +0200 |
commit | 13bdaa6c609a8718d4ce6ca3ce5f1e16f4d7c600 (patch) | |
tree | 5d8cc87a93620948424be3bee61c206279f4dc7a /src/core/loader/elf.cpp | |
parent | Elf: Renamed modules to be consistent with new loader naming, fixed tabs -> spaces. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/loader/elf.cpp | 107 |
1 files changed, 51 insertions, 56 deletions
diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp index 153c30f51..f93354817 100644 --- a/src/core/loader/elf.cpp +++ b/src/core/loader/elf.cpp @@ -5,65 +5,17 @@ #include <string> #include "common/common.h" - +#include "common/file_util.h" #include "common/symbols.h" + #include "core/mem_map.h" #include "core/loader/elf.h" +#include "core/hle/kernel/kernel.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) -{ +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); @@ -73,8 +25,7 @@ ElfReader::ElfReader(void *ptr) LoadSymbols(); } -const char *ElfReader::GetSectionName(int section) const -{ +const char *ElfReader::GetSectionName(int section) const { if (sections[section].sh_type == SHT_NULL) return nullptr; @@ -87,8 +38,7 @@ const char *ElfReader::GetSectionName(int section) const return nullptr; } -bool ElfReader::LoadInto(u32 vaddr) -{ +bool ElfReader::LoadInto(u32 vaddr) { DEBUG_LOG(MASTER_LOG, "String section: %i", header->e_shstrndx); // Should we relocate? @@ -188,3 +138,48 @@ bool ElfReader::LoadSymbols() return hasSymbols; } + +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Loader namespace + +namespace Loader { + +/** + * Loads an ELF file + * @param filename String filename of ELF file + * @param error_string Pointer to string to put error message if an error has occurred + * @return True on success, otherwise false + */ +bool Load_ELF(std::string& filename, std::string* error_string) { + std::string full_path = filename; + std::string path, file, extension; + SplitPath(ReplaceAll(full_path, "\\", "/"), &path, &file, &extension); +#if EMU_PLATFORM == PLATFORM_WINDOWS + path = ReplaceAll(path, "/", "\\"); +#endif + File::IOFile f(filename, "rb"); + + if (f.IsOpen()) { + u32 size = (u32)f.GetSize(); + u8* buffer = new u8[size]; + ElfReader* elf_reader = NULL; + + f.ReadBytes(buffer, size); + + elf_reader = new ElfReader(buffer); + elf_reader->LoadInto(0x00100000); + + Kernel::LoadExec(elf_reader->GetEntryPoint()); + + delete[] buffer; + delete elf_reader; + } else { + *error_string = "Unable to open ELF file!"; + return false; + } + f.Close(); + + return true; +} + +} // namespace Loader |