kaguya
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#define ELF_MAGIC ("\x7F" "ELF")
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#include <stdint.h>
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typedef struct
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{
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uint8_t Magic[4];
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uint8_t Bitness; // 1 = 32-bit, 2 = 64-bit
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uint8_t Endianness; // 1 = little, 2 = big
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uint8_t ELFHeaderVersion;
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uint8_t ABI;
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uint8_t ABIVersion;
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uint8_t _Padding[7];
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uint16_t Type; // relocatable, executable, shared, core
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uint16_t InstructionSet; // architecture (was too small for real ELF, but kept)
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uint32_t ELFVersion;
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uint64_t ProgramEntryPosition; // FIXED (was 32-bit)
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uint64_t ProgramHeaderTablePosition; // FIXED
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uint64_t SectionHeaderTablePosition; // FIXED
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uint32_t Flags;
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uint16_t HeaderSize;
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uint16_t ProgramHeaderTableEntrySize;
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uint16_t ProgramHeaderTableEntryCount;
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uint16_t SectionHeaderTableEntrySize;
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uint16_t SectionHeaderTableEntryCount;
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uint16_t SectionNamesIndex;
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} __attribute__((packed)) ELFHeader;
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enum ELFBitness
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{
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ELF_BITNESS_32BIT = 1,
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ELF_BITNESS_64BIT = 2,
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};
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enum ELFEndianness
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{
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ELF_ENDIANNESS_LITTLE = 1,
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ELF_ENDIANNESS_BIG = 2,
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};
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enum ELFInstructionSet
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{
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ELF_INSTRUCTION_SET_NONE = 0,
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ELF_INSTRUCTION_SET_X86 = 3,
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ELF_INSTRUCTION_SET_ARM = 0x28,
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ELF_INSTRUCTION_SET_X64 = 0x3E,
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ELF_INSTRUCTION_SET_ARM64 = 0xB7,
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ELF_INSTRUCTION_SET_RISCV = 0xF3,
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};
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enum ELFType
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{
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ELF_TYPE_RELOCATABLE = 1,
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ELF_TYPE_EXECUTABLE = 2,
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ELF_TYPE_SHARED = 3,
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ELF_TYPE_CORE = 4,
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};
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typedef struct
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{
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uint32_t Type;
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uint64_t Offset;
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uint64_t VirtualAddress;
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uint64_t PhysicalAddress;
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uint64_t FileSize;
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uint64_t MemorySize;
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uint32_t Flags;
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uint64_t Align;
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} ELFProgramHeader;
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enum ELFProgramType {
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// Program header table entry unused.
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ELF_PROGRAM_TYPE_NULL = 0,
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// Loadable segment.
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ELF_PROGRAM_TYPE_LOAD = 1,
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// Dynamic linking information.
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ELF_PROGRAM_TYPE_DYNAMIC = 2,
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// Interpreter information.
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ELF_PROGRAM_TYPE_INTERP = 3,
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// Auxiliary information.
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ELF_PROGRAM_TYPE_NOTE = 4,
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// Reserved
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ELF_PROGRAM_TYPE_SHLIB = 5,
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// Segment containing program header table itself.
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ELF_PROGRAM_TYPE_PHDR = 6,
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// Thread-Local Storage template.
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ELF_PROGRAM_TYPE_TLS = 7,
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// Reserved inclusive range. Operating system specific.
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ELF_PROGRAM_TYPE_LOOS = 0x60000000,
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ELF_PROGRAM_TYPE_HIOS = 0x6FFFFFFF,
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// Reserved inclusive range. Processor specific.
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ELF_PROGRAM_TYPE_LOPROC = 0x70000000,
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ELF_PROGRAM_TYPE_HIPROC = 0x7FFFFFFF,
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};
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bool ELF_Read(const char* path, void** entryPoint); |