mirror of
https://github.com/shadps4-emu/shadPS4.git
synced 2025-01-19 13:08:27 +00:00
435 lines
18 KiB
C++
435 lines
18 KiB
C++
#include "Elf.h"
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#include <Util/log.h>
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#include <debug.h>
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#include <fmt/core.h>
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constexpr bool log_file_loader = true; // disable it to disable logging
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static std::string_view getProgramTypeName(program_type_es type) {
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switch (type) {
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case PT_FAKE: return "PT_FAKE";
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case PT_NPDRM_EXEC: return "PT_NPDRM_EXEC";
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case PT_NPDRM_DYNLIB: return "PT_NPDRM_DYNLIB";
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case PT_SYSTEM_EXEC: return "PT_SYSTEM_EXEC";
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case PT_SYSTEM_DYNLIB: return "PT_SYSTEM_DYNLIB";
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case PT_HOST_KERNEL: return "PT_HOST_KERNEL";
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case PT_SECURE_MODULE: return "PT_SECURE_MODULE";
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case PT_SECURE_KERNEL: return "PT_SECURE_KERNEL";
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default: return "INVALID";
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}
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}
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static std::string_view getIdentClassName(ident_class_es elf_class) {
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switch (elf_class) {
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case ELF_CLASS_NONE: return "ELF_CLASS_NONE";
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case ELF_CLASS_32: return "ELF_CLASS_32";
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case ELF_CLASS_64: return "ELF_CLASS_64";
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case ELF_CLASS_NUM: return "ELF_CLASS_NUM";
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default: return "INVALID";
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}
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}
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static std::string_view getIdentEndianName(ident_endian_es endian) {
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switch (endian) {
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case ELF_DATA_NONE: return "ELF_DATA_NONE";
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case ELF_DATA_2LSB: return "ELF_DATA_2LSB";
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case ELF_DATA_2MSB: return "ELF_DATA_2MSB";
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case ELF_DATA_NUM: return "ELF_DATA_NUM";
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default: return "INVALID";
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}
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}
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static std::string_view getIdentVersionName(ident_version_es version) {
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switch (version) {
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case ELF_VERSION_NONE: return "ELF_VERSION_NONE";
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case ELF_VERSION_CURRENT: return "ELF_VERSION_CURRENT";
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case ELF_VERSION_NUM: return "ELF_VERSION_NUM";
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default: return "INVALID";
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}
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}
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static std::string_view getIdentOsabiName(ident_osabi_es osabi) {
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switch (osabi) {
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case ELF_OSABI_NONE: return "ELF_OSABI_NONE";
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case ELF_OSABI_HPUX: return "ELF_OSABI_HPUX";
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case ELF_OSABI_NETBSD: return "ELF_OSABI_NETBSD";
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case ELF_OSABI_LINUX: return "ELF_OSABI_LINUX";
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case ELF_OSABI_SOLARIS: return "ELF_OSABI_SOLARIS";
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case ELF_OSABI_AIX: return "ELF_OSABI_AIX";
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case ELF_OSABI_IRIX: return "ELF_OSABI_IRIX";
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case ELF_OSABI_FREEBSD: return "ELF_OSABI_FREEBSD";
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case ELF_OSABI_TRU64: return "ELF_OSABI_TRU64";
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case ELF_OSABI_MODESTO: return "ELF_OSABI_MODESTO";
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case ELF_OSABI_OPENBSD: return "ELF_OSABI_OPENBSD";
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case ELF_OSABI_OPENVMS: return "ELF_OSABI_OPENVMS";
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case ELF_OSABI_NSK: return "ELF_OSABI_NSK";
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case ELF_OSABI_AROS: return "ELF_OSABI_AROS";
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case ELF_OSABI_ARM_AEABI: return "ELF_OSABI_ARM_AEABI";
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case ELF_OSABI_ARM: return "ELF_OSABI_ARM";
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case ELF_OSABI_STANDALONE: return "ELF_OSABI_STANDALONE";
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default: return "INVALID";
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}
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}
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static std::string_view getIdentAbiversionName(ident_abiversion_es version) {
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switch (version) {
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case ELF_ABI_VERSION_AMDGPU_HSA_V2: return "ELF_ABI_VERSION_AMDGPU_HSA_V2";
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case ELF_ABI_VERSION_AMDGPU_HSA_V3: return "ELF_ABI_VERSION_AMDGPU_HSA_V3";
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case ELF_ABI_VERSION_AMDGPU_HSA_V4: return "ELF_ABI_VERSION_AMDGPU_HSA_V4";
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case ELF_ABI_VERSION_AMDGPU_HSA_V5: return "ELF_ABI_VERSION_AMDGPU_HSA_V5";
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default: return "INVALID";
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}
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}
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static std::string_view getVersion(e_version_es version) {
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switch (version) {
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case EV_NONE: return "EV_NONE";
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case EV_CURRENT: return "EV_CURRENT";
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default: return "INVALID";
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}
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}
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static std::string_view getType(e_type_s type) {
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switch (type) {
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case ET_NONE: return "ET_NONE";
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case ET_REL: return "ET_REL";
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case ET_EXEC: return "ET_EXEC";
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case ET_DYN: return "ET_DYN";
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case ET_CORE: return "ET_CORE";
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case ET_SCE_EXEC: return "ET_SCE_EXEC";
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case ET_SCE_STUBLIB: return "ET_SCE_STUBLIB";
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case ET_SCE_DYNEXEC: return "ET_SCE_DYNEXEC";
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case ET_SCE_DYNAMIC: return "ET_SCE_DYNAMIC";
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default: return "INVALID";
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}
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}
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static std::string_view getMachine(e_machine_es machine) {
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switch (machine) {
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case EM_X86_64: return "EM_X86_64";
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default: return "INVALID";
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}
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}
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Elf::~Elf() { Reset(); }
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void Elf::Reset() { m_f.close(); }
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void Elf::Open(const std::string& file_name) {
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Reset();
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m_f.open(file_name, Common::FS::OpenMode::Read);
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m_f.read(m_self);
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if (is_self = isSelfFile(); !is_self) {
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m_f.seek(0, Common::FS::SeekMode::Set);
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} else {
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m_self_segments.resize(m_self.segment_count);
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m_f.read(m_self_segments);
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}
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const u64 elf_header_pos = m_f.tell();
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m_f.read(m_elf_header);
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if (!isElfFile()) {
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return;
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}
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const auto load_headers = [this]<typename T>(std::vector<T>& out, u64 offset, u16 num) {
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if (!num) {
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return;
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}
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out.resize(num);
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m_f.seek(offset, Common::FS::SeekMode::Set);
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m_f.read(out);
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};
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load_headers(m_elf_phdr, elf_header_pos + m_elf_header.e_phoff, m_elf_header.e_phnum);
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load_headers(m_elf_shdr, elf_header_pos + m_elf_header.e_shoff, m_elf_header.e_shnum);
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if (is_self) {
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u64 header_size = 0;
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header_size += sizeof(self_header);
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header_size += sizeof(self_segment_header) * m_self.segment_count;
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header_size += sizeof(elf_header);
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header_size += m_elf_header.e_phnum * m_elf_header.e_phentsize;
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header_size += m_elf_header.e_shnum * m_elf_header.e_shentsize;
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header_size += 15;
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header_size &= ~15; // Align
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if (m_elf_header.e_ehsize - header_size >= sizeof(elf_program_id_header)) {
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m_f.seek(header_size, Common::FS::SeekMode::Set);
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m_f.read(m_self_id_header);
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}
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}
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DebugDump();
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}
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bool Elf::isSelfFile() const {
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if (m_self.magic != self_header::signature) [[unlikely]] {
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LOG_ERROR_IF(log_file_loader, "Not a SELF file.Magic file mismatched !current = {:#x} required = {:#x}\n ", m_self.magic,
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self_header::signature);
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return false;
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}
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if (m_self.version != 0x00 || m_self.mode != 0x01 || m_self.endian != 0x01 || m_self.attributes != 0x12) [[unlikely]] {
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LOG_ERROR_IF(log_file_loader, "Unknown SELF file\n");
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return false;
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}
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if (m_self.category != 0x01 || m_self.program_type != 0x01) [[unlikely]] {
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LOG_ERROR_IF(log_file_loader, "Unknown SELF file\n");
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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 Elf::isElfFile() const {
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if (m_elf_header.e_ident.magic[EI_MAG0] != ELFMAG0 || m_elf_header.e_ident.magic[EI_MAG1] != ELFMAG1 ||
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m_elf_header.e_ident.magic[EI_MAG2] != ELFMAG2 || m_elf_header.e_ident.magic[EI_MAG3] != ELFMAG3) {
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LOG_ERROR_IF(log_file_loader, "Not an ELF file magic is wrong!\n");
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return false;
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}
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if (m_elf_header.e_ident.ei_class != ELF_CLASS_64) {
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LOG_ERROR_IF(log_file_loader, "e_ident[EI_CLASS] expected 0x02 is ({:#x})\n", static_cast<u32>(m_elf_header.e_ident.ei_class));
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return false;
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}
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if (m_elf_header.e_ident.ei_data != ELF_DATA_2LSB) {
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LOG_ERROR_IF(log_file_loader, "e_ident[EI_DATA] expected 0x01 is ({:#x})\n", static_cast<u32>(m_elf_header.e_ident.ei_data));
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return false;
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}
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if (m_elf_header.e_ident.ei_version != ELF_VERSION_CURRENT) {
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LOG_ERROR_IF(log_file_loader, "e_ident[EI_VERSION] expected 0x01 is ({:#x})\n", static_cast<u32>(m_elf_header.e_ident.ei_version));
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return false;
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}
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if (m_elf_header.e_ident.ei_osabi != ELF_OSABI_FREEBSD) {
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LOG_ERROR_IF(log_file_loader, "e_ident[EI_OSABI] expected 0x09 is ({:#x})\n", static_cast<u32>(m_elf_header.e_ident.ei_osabi));
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return false;
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}
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if (m_elf_header.e_ident.ei_abiversion != ELF_ABI_VERSION_AMDGPU_HSA_V2) {
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LOG_ERROR_IF(log_file_loader, "e_ident[EI_ABIVERSION] expected 0x00 is ({:#x})\n", static_cast<u32>(m_elf_header.e_ident.ei_abiversion));
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return false;
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}
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if (m_elf_header.e_type != ET_SCE_DYNEXEC && m_elf_header.e_type != ET_SCE_DYNAMIC && m_elf_header.e_type != ET_SCE_EXEC) {
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LOG_ERROR_IF(log_file_loader, "e_type expected 0xFE10 OR 0xFE18 OR 0xfe00 is ({:#x})\n", static_cast<u32>(m_elf_header.e_type));
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return false;
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}
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if (m_elf_header.e_machine != EM_X86_64) {
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LOG_ERROR_IF(log_file_loader, "e_machine expected 0x3E is ({:#x})\n", static_cast<u32>(m_elf_header.e_machine));
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return false;
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}
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if (m_elf_header.e_version != EV_CURRENT) {
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LOG_ERROR_IF(log_file_loader, "m_elf_header.e_version expected 0x01 is ({:#x})\n", static_cast<u32>(m_elf_header.e_version));
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return false;
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}
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if (m_elf_header.e_phentsize != sizeof(elf_program_header)) {
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LOG_ERROR_IF(log_file_loader, "e_phentsize ({}) != sizeof(elf_program_header)\n", static_cast<u32>(m_elf_header.e_phentsize));
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return false;
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}
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if (m_elf_header.e_shentsize > 0 &&
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m_elf_header.e_shentsize != sizeof(elf_section_header)) // Commercial games doesn't appear to have section headers
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{
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LOG_ERROR_IF(log_file_loader, "e_shentsize ({}) != sizeof(elf_section_header)\n", m_elf_header.e_shentsize);
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return false;
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}
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return true;
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}
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void Elf::DebugDump() {
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if (is_self) { // If we load elf instead
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LOG_INFO_IF(log_file_loader, (SElfHeaderStr()));
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for (u16 i = 0; i < m_self.segment_count; i++) {
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LOG_INFO_IF(log_file_loader, SELFSegHeader(i));
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}
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}
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LOG_INFO_IF(log_file_loader, ElfHeaderStr());
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if (m_elf_header.e_phentsize > 0) {
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LOG_INFO_IF(log_file_loader, "Program headers:\n");
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for (u16 i = 0; i < m_elf_header.e_phnum; i++) {
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LOG_INFO_IF(log_file_loader, ElfPHeaderStr(i));
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}
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}
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if (m_elf_header.e_shentsize > 0) {
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LOG_INFO_IF(log_file_loader, "Section headers:\n");
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for (u16 i = 0; i < m_elf_header.e_shnum; i++) {
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LOG_INFO_IF(log_file_loader, "--- shdr {} --\n", i);
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LOG_INFO_IF(log_file_loader, "sh_name ........: {}\n", m_elf_shdr[i].sh_name);
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LOG_INFO_IF(log_file_loader, "sh_type ........: {:#010x}\n", m_elf_shdr[i].sh_type);
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LOG_INFO_IF(log_file_loader, "sh_flags .......: {:#018x}\n", m_elf_shdr[i].sh_flags);
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LOG_INFO_IF(log_file_loader, "sh_addr ........: {:#018x}\n", m_elf_shdr[i].sh_addr);
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LOG_INFO_IF(log_file_loader, "sh_offset ......: {:#018x}\n", m_elf_shdr[i].sh_offset);
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LOG_INFO_IF(log_file_loader, "sh_size ........: {:#018x}\n", m_elf_shdr[i].sh_size);
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LOG_INFO_IF(log_file_loader, "sh_link ........: {:#010x}\n", m_elf_shdr[i].sh_link);
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LOG_INFO_IF(log_file_loader, "sh_info ........: {:#010x}\n", m_elf_shdr[i].sh_info);
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LOG_INFO_IF(log_file_loader, "sh_addralign ...: {:#018x}\n", m_elf_shdr[i].sh_addralign);
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LOG_INFO_IF(log_file_loader, "sh_entsize .....: {:#018x}\n", m_elf_shdr[i].sh_entsize);
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}
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}
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if (is_self) {
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LOG_INFO_IF(log_file_loader, "SELF info:\n");
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LOG_INFO_IF(log_file_loader, "auth id ............: {:#018x}\n", m_self_id_header.authid);
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LOG_INFO_IF(log_file_loader, "program type .......: {}\n", getProgramTypeName(m_self_id_header.program_type));
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LOG_INFO_IF(log_file_loader, "app version ........: {:#018x}\n", m_self_id_header.appver);
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LOG_INFO_IF(log_file_loader, "fw version .........: {:#018x}\n", m_self_id_header.firmver);
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std::string digest;
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for (int i = 0; i < 32; i++) {
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digest += fmt::format("{:02X}", m_self_id_header.digest[i]);
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}
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LOG_INFO_IF(log_file_loader, "digest..............: 0x{}\n", digest);
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}
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}
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std::string Elf::SElfHeaderStr() {
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std::string header = fmt::format("======= SELF HEADER =========\n", m_self.magic);
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header += fmt::format("magic ..............: 0x{:X}\n", m_self.magic);
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header += fmt::format("version ............: {}\n", m_self.version);
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header += fmt::format("mode ...............: {:#04x}\n", m_self.mode);
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header += fmt::format("endian .............: {}\n", m_self.endian);
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header += fmt::format("attributes .........: {:#04x}\n", m_self.attributes);
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header += fmt::format("category ...........: {:#04x}\n", m_self.category);
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header += fmt::format("program_type........: {:#04x}\n", m_self.program_type);
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header += fmt::format("padding1 ...........: {:#06x}\n", m_self.padding1);
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header += fmt::format("header size ........: {}\n", m_self.header_size);
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header += fmt::format("meta size ..........: {}\n", m_self.meta_size);
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header += fmt::format("file size ..........: {}\n", m_self.file_size);
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header += fmt::format("padding2 ...........: {:#010x}\n", m_self.padding2);
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header += fmt::format("segment count ......: {}\n", m_self.segment_count);
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header += fmt::format("unknown 1A .........: {:#06x}\n", m_self.unknown1A);
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header += fmt::format("padding3 ...........: {:#010x}\n", m_self.padding3);
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return header;
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}
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std::string Elf::SELFSegHeader(u16 no) {
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const auto segment_header = m_self_segments[no];
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std::string header = fmt::format("====== SEGMENT HEADER {} ========\n", no);
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header += fmt::format("flags ............: {:#018x}\n", segment_header.flags);
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header += fmt::format("file offset ......: {:#018x}\n", segment_header.file_offset);
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header += fmt::format("file size ........: {}\n", segment_header.file_size);
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header += fmt::format("memory size ......: {}\n", segment_header.memory_size);
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return header;
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}
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std::string Elf::ElfHeaderStr() {
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std::string header = fmt::format("======= Elf header ===========\n");
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header += fmt::format("ident ............: 0x");
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for (auto i : m_elf_header.e_ident.magic) {
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header += fmt::format("{:02X}", i);
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}
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header += fmt::format("\n");
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header += fmt::format("ident class.......: {}\n", getIdentClassName(m_elf_header.e_ident.ei_class));
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header += fmt::format("ident data .......: {}\n", getIdentEndianName(m_elf_header.e_ident.ei_data));
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header += fmt::format("ident version.....: {}\n", getIdentVersionName(m_elf_header.e_ident.ei_version));
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header += fmt::format("ident osabi .....: {}\n", getIdentOsabiName(m_elf_header.e_ident.ei_osabi));
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header += fmt::format("ident abiversion..: {}\n", getIdentAbiversionName(m_elf_header.e_ident.ei_abiversion));
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header += fmt::format("ident UNK ........: 0x");
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for (auto i : m_elf_header.e_ident.pad) {
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header += fmt::format("{:02X}", i);
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}
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header += fmt::format("\n");
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header += fmt::format("type ............: {}\n", getType(m_elf_header.e_type));
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header += fmt::format("machine ..........: {}\n", getMachine(m_elf_header.e_machine));
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header += fmt::format("version ..........: {}\n", getVersion(m_elf_header.e_version));
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header += fmt::format("entry ............: {:#018x}\n", m_elf_header.e_entry);
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header += fmt::format("phoff ............: {:#018x}\n", m_elf_header.e_phoff);
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header += fmt::format("shoff ............: {:#018x}\n", m_elf_header.e_shoff);
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header += fmt::format("flags ............: {:#010x}\n", m_elf_header.e_flags);
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header += fmt::format("ehsize ...........: {}\n", m_elf_header.e_ehsize);
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header += fmt::format("phentsize ........: {}\n", m_elf_header.e_phentsize);
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header += fmt::format("phnum ............: {}\n", m_elf_header.e_phnum);
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header += fmt::format("shentsize ........: {}\n", m_elf_header.e_shentsize);
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header += fmt::format("shnum ............: {}\n", m_elf_header.e_shnum);
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header += fmt::format("shstrndx .........: {}\n", m_elf_header.e_shstrndx);
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return header;
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}
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std::string Elf::ElfPheaderTypeStr(u32 type) {
|
|
switch (type) {
|
|
case PT_NULL: return "Null";
|
|
case PT_LOAD: return "Loadable";
|
|
case PT_DYNAMIC: return "Dynamic";
|
|
case PT_INTERP: return "Interpreter Path";
|
|
case PT_NOTE: return "Note";
|
|
case PT_SHLIB: return "Section Header Library";
|
|
case PT_PHDR: return "Program Header";
|
|
case PT_TLS: return "Thread-Local Storage";
|
|
case PT_NUM: return "Defined Sections Number";
|
|
case PT_SCE_RELA: return "SCE Relative";
|
|
case PT_SCE_DYNLIBDATA: return "SCE Dynamic Library Data";
|
|
case PT_SCE_PROCPARAM: return "SCE Processor Parameters";
|
|
case PT_SCE_MODULE_PARAM: return "SCE Module Parameters";
|
|
case PT_SCE_RELRO: return "SCE Read-Only After Relocation";
|
|
case PT_GNU_EH_FRAME: return "GNU Entry Header Frame";
|
|
case PT_GNU_STACK: return "GNU Stack (executability)";
|
|
case PT_GNU_RELRO: return "GNU Read-Only After Relocation";
|
|
case PT_SCE_COMMENT: return "SCE Comment";
|
|
case PT_SCE_LIBVERSION: return "SCE Library Version";
|
|
default: return "Unknown Section";
|
|
}
|
|
}
|
|
|
|
std::string Elf::ElfPheaderFlagsStr(u32 flags) {
|
|
std::string flg = "(";
|
|
flg += (flags & PF_READ) ? "R" : "_";
|
|
flg += (flags & PF_WRITE) ? "W" : "_";
|
|
flg += (flags & PF_EXEC) ? "X" : "_";
|
|
flg += ")";
|
|
return flg;
|
|
}
|
|
|
|
std::string Elf::ElfPHeaderStr(u16 no) {
|
|
std::string header = fmt::format("====== PROGRAM HEADER {} ========\n", no);
|
|
header += fmt::format("p_type ....: {}\n", ElfPheaderTypeStr(m_elf_phdr[no].p_type));
|
|
header += fmt::format("p_flags ...: {:#010x}\n", static_cast<u32>(m_elf_phdr[no].p_flags));
|
|
header += fmt::format("p_offset ..: {:#018x}\n", m_elf_phdr[no].p_offset);
|
|
header += fmt::format("p_vaddr ...: {:#018x}\n", m_elf_phdr[no].p_vaddr);
|
|
header += fmt::format("p_paddr ...: {:#018x}\n", m_elf_phdr[no].p_paddr);
|
|
header += fmt::format("p_filesz ..: {:#018x}\n", m_elf_phdr[no].p_filesz);
|
|
header += fmt::format("p_memsz ...: {:#018x}\n", m_elf_phdr[no].p_memsz);
|
|
header += fmt::format("p_align ...: {:#018x}\n", m_elf_phdr[no].p_align);
|
|
return header;
|
|
}
|
|
|
|
void Elf::LoadSegment(u64 virtual_addr, u64 file_offset, u64 size) {
|
|
if (!is_self) {
|
|
// It's elf file
|
|
m_f.seek(file_offset, Common::FS::SeekMode::Set);
|
|
m_f.read(reinterpret_cast<void*>(static_cast<uintptr_t>(virtual_addr)), size);
|
|
return;
|
|
}
|
|
|
|
for (uint16_t i = 0; i < m_self.segment_count; i++) {
|
|
const auto& seg = m_self_segments[i];
|
|
|
|
if (seg.IsBlocked()) {
|
|
auto phdr_id = seg.GetId();
|
|
const auto& phdr = m_elf_phdr[phdr_id];
|
|
|
|
if (file_offset >= phdr.p_offset && file_offset < phdr.p_offset + phdr.p_filesz) {
|
|
auto offset = file_offset - phdr.p_offset;
|
|
m_f.seek(offset + seg.file_offset, Common::FS::SeekMode::Set);
|
|
m_f.read(reinterpret_cast<void*>(static_cast<uintptr_t>(virtual_addr)), size);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
BREAKPOINT(); // Hmm we didn't return something...
|
|
}
|