133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
#pragma once
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#include <string>
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#include <inttypes.h>
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#include "../types.h"
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#include "../Core/FsFile.h"
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struct self_header
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{
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static const u32 signature = 0x1D3D154Fu;
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u32 magic;
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u08 version;
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u08 mode;
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u08 endian;// 1 is little endian
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u08 attributes;
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u08 category;
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u08 program_type;
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u16 padding1;
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u16 header_size;
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u16 meta_size;
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u32 file_size;
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u32 padding2;
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u16 segment_count;
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u16 unknown1A; //always 0x22
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u32 padding3;
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};
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struct self_segment_header
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{
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u64 flags;
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u64 file_offset;
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u64 file_size;
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u64 memory_size;
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};
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constexpr u08 EI_MAG0 = 0;/* e_ident[] indexes */
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constexpr u08 EI_MAG1 = 1;
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constexpr u08 EI_MAG2 = 2;
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constexpr u08 EI_MAG3 = 3;
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constexpr u08 EI_CLASS = 4;
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constexpr u08 EI_DATA = 5;
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constexpr u08 EI_VERSION = 6;
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constexpr u08 EI_OSABI = 7;
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constexpr u08 EI_ABIVERSION = 8;
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// Magic number
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constexpr u08 ELFMAG0 = 0x7F;
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constexpr u08 ELFMAG1 = 'E';
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constexpr u08 ELFMAG2 = 'L';
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constexpr u08 ELFMAG3 = 'F';
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//other ident fields , only ps4 neccesary ones
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constexpr u08 ELFCLASS64 = 2;
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constexpr u08 ELFDATA2LSB = 1;
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constexpr u08 ELFOSABI_FREEBSD = 9; // FreeBSD
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constexpr u08 EV_CURRENT = 1;
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constexpr u08 ELFABIVERSION_AMDGPU_HSA_V2 = 0;
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//type fields PS4 specific
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constexpr u16 ET_DYNEXEC = 0xFE10; // Executable file
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constexpr u16 ET_DYNAMIC = 0xFE18; // Shared
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//machine field
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constexpr u16 EM_X86_64 = 62; // Advanced Micro Devices X86-64 processor
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struct elf_header
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{
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u08 e_ident[16]; /* ELF identification */
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u16 e_type; /* Object file type */
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u16 e_machine; /* Machine type */
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u32 e_version; /* Object file version */
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u64 e_entry; /* Entry point address */
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u64 e_phoff; /* Program header offset */
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u64 e_shoff; /* Section header offset */
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u32 e_flags; /* Processor-specific flags */
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u16 e_ehsize; /* ELF header size */
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u16 e_phentsize; /* Size of program header entry */
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u16 e_phnum; /* Number of program header entries */
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u16 e_shentsize; /* Size of section header entry */
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u16 e_shnum; /* Number of section header entries */
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u16 e_shstrndx; /* Section name string table index */
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};
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struct elf_program_header
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{
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u32 p_type; /* Type of segment */
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u32 p_flags; /* Segment attributes */
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u64 p_offset; /* Offset in file */
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u64 p_vaddr; /* Virtual address in memory */
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u64 p_paddr; /* Reserved */
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u64 p_filesz; /* Size of segment in file */
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u64 p_memsz; /* Size of segment in memory */
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u64 p_align; /* Alignment of segment */
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};
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struct elf_section_header
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{
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u32 sh_name; /* Section name */
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u32 sh_type; /* Section type */
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u64 sh_flags; /* Section attributes */
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u64 sh_addr; /* Virtual address in memory */
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u64 sh_offset; /* Offset in file */
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u64 sh_size; /* Size of section */
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u32 sh_link; /* Link to other section */
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u32 sh_info; /* Miscellaneous information */
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u64 sh_addralign; /* Address alignment boundary */
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u64 sh_entsize; /* Size of entries, if section has table */
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};
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class Elf
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{
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public:
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Elf() = default;
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virtual ~Elf();
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void Open(const std::string & file_name);
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bool isSelfFile() const;
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bool isElfFile() const;
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void DebugDump();
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private:
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void Reset();
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FsFile* m_f = nullptr;
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self_header* m_self = nullptr;
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self_segment_header* m_self_segments = nullptr;
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elf_header* m_elf_header = nullptr;
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elf_program_header* m_elf_phdr = nullptr;
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elf_section_header* m_elf_shdr = nullptr;
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};
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