119 lines
2.3 KiB
C
119 lines
2.3 KiB
C
#pragma once
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#include "mmgr.h"
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#include "types/physaddr.h"
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#include <stdint.h>
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enum elf_endianness_t
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{
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ELF_LITTLE_ENDIAN = 1,
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ELF_BIG_ENDIAN = 2
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};
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enum elf_isa_t
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{
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ELF_ISA_NA = 0x00,
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ELF_ISA_x86 = 0x03,
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ELF_ISA_MIPS = 0x08,
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ELF_ISA_PPC = 0x14,
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ELF_ISA_PPC64 = 0x15,
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ELF_ISA_ARM = 0x28,
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ELF_ISA_x86_64 = 0x3E,
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ELF_ISA_AARCH64 = 0xB7
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};
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enum elf_segment_type_t
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{
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ELF_UNUSED = 0,
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ELF_LOAD = 1,
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ELF_DYNAMIC = 2
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};
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struct elf_file_header_t
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{
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uint32_t magic;
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char size;
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char endianness;
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char version;
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char abi;
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char abi_version;
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char reserved[7];
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uint16_t type;
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uint16_t machine;
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uint32_t _version;
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void *entry;
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#if defined __i386__ || defined __arm__
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uint32_t phoffset;
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uint32_t shoffset;
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#elif defined __x86_64__ || defined __aarch64__
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uint64_t phoffset;
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uint64_t shoffset;
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#endif
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uint32_t flags;
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uint16_t header_size;
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uint16_t phsize;
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uint16_t phcount;
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uint16_t shsize;
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uint16_t shcount;
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uint16_t shstrndx;
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};
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struct elf_program_header_t
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{
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uint32_t type;
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#if defined __i386__ || defined __arm__
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uint32_t offset;
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void *vaddr;
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physaddr_t paddr;
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uint32_t filesize;
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uint32_t memsize;
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uint32_t flags;
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uint32_t align;
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#elif defined __x86_64__ || defined __aarch64__
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uint32_t flags;
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uint64_t offset;
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void *vaddr;
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physaddr_t paddr;
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uint64_t filesize;
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uint64_t memsize;
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uint64_t align;
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#endif
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};
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struct elf_section_header_t
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{
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uint32_t name;
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uint32_t type;
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#if defined __i386__ || defined __arm__
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uint32_t flags;
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void *addr;
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uint32_t offset;
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uint32_t size;
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uint32_t link;
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uint32_t info;
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uint32_t align;
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uint32_t entry_size;
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#elif defined __x86_64__ || defined __aarch64__
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uint64_t flags;
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void *addr;
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uint64_t offset;
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uint64_t size;
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uint32_t link;
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uint32_t info;
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uint64_t align;
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uint64_t entry_size;
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#endif
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};
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#if defined __i386__
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static const enum elf_isa_t HOST_ISA = ELF_ISA_x86;
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#elif defined __x86_64__
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static const enum elf_isa_t HOST_ISA = ELF_ISA_x86_64;
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#elif defined __arm__
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static const enum elf_isa_t HOST_ISA = ELF_ISA_ARM;
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#elif defined __aarch64__
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static const enum elf_isa_t HOST_ISA = ELF_ISA_AARCH64;
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#endif
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int load_program(struct elf_file_header_t *elf);
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