168 lines
3.8 KiB
C
168 lines
3.8 KiB
C
//
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// Created by rick on 07-03-21.
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//
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#ifndef NEW_KERNEL_ELF_H
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#define NEW_KERNEL_ELF_H
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#include <sys/types.h>
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// \x7FELF (little endian)
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#define ELF_MAGIC 0x464C457F
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#define ELF_CLASS_32 1
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#define ELF_CLASS_64 2
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#define ELF_ENDIAN_LITTLE 1
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#define ELF_ENDIAN_BIG 2
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#define SHT_NULL 0
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#define SHT_PROGBITS 1
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#define SHT_SYMTAB 2
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#define SHT_STRTAB 3
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#define SHT_RELA 4
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#define SHT_HASH 5
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#define SHT_DYNAMIC 6
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#define SHT_NOTE 7
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#define SHT_NOBITS 8
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#define SHT_REL 9
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#define SHT_SHLIB 10
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#define SHT_DYNSYM 11
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#define SHT_LOPROC 0x70000000
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#define SHT_HIPROC 0x7fffffff
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#define SHT_LOUSER 0x80000000
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#define SHT_HIUSER 0xffffffff
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#define SHF_WRITE 0x1
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#define SHF_ALLOC 0x2
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#define SHF_EXECINSTR 0x4
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#define SHF_MASKPROC 0xf0000000
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#define ELF32_ST_BIND(i) ((i)>>4)
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#define ELF32_ST_TYPE(i) ((i)&0xf)
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#define ELF32_ST_INFO(b, t) (((b)<<4)+((t)&0xf))
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#define STB_LOCAL 0
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#define STB_GLOBAL 1
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#define STB_WEAK 2
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#define STB_LOPROC 13
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#define STB_HIPROC 15
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#define STT_NOTYPE 0
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#define STT_OBJECT 1
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#define STT_FUNC 2
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#define STT_SECTION 3
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#define STT_FILE 4
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#define STT_LOPROC 13
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#define STT_HIPROC 15
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struct elf_file_header {
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uint32_t ei_magic;
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uint8_t ei_class;
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uint8_t ei_data;
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uint8_t ei_version;
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uint8_t ei_osabi;
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uint8_t ei_abiversion;
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uint64_t: 56; // 7 bytes padding
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union {
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struct {
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uint16_t e_type;
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uint16_t e_machine;
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uint32_t e_version;
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uint32_t e_entry;
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uint32_t e_phoff;
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uint32_t e_shoff;
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uint32_t e_flags;
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uint16_t e_ehsize;
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uint16_t e_phentsize;
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uint16_t e_phnum;
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uint16_t e_shentsize;
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uint16_t e_shnum;
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uint16_t e_shstrndx;
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} elf32 __attribute((packed));
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struct {
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uint16_t e_type;
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uint16_t e_machine;
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uint32_t e_version;
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uint64_t e_entry;
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uint64_t e_phoff;
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uint64_t e_shoff;
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uint32_t e_flags;
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uint16_t e_ehsize;
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uint16_t e_phentsize;
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uint16_t e_phnum;
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uint16_t e_shentsize;
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uint16_t e_shnum;
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uint16_t e_shstrndx;
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} elf64 __attribute((packed));
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};
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} __attribute((packed));
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struct elf32_program_header {
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uint32_t p_type;
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uint32_t p_offset;
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uint32_t p_vaddr;
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uint32_t p_paddr;
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uint32_t p_filesz;
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uint32_t p_memsz;
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uint32_t p_flags;
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uint32_t p_align;
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} __attribute((packed));
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struct elf64_program_header {
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uint32_t p_type;
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uint32_t p_flags;
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uint64_t p_offset;
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uint64_t p_vaddr;
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uint64_t p_paddr;
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uint64_t p_filesz;
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uint64_t p_memsz;
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uint64_t p_align;
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} __attribute((packed));
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struct elf32_section_header {
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uint32_t sh_name;
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uint32_t sh_type;
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uint32_t sh_flags;
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uint32_t sh_addr;
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uint32_t sh_offset;
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uint32_t sh_size;
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uint32_t sh_link;
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uint32_t sh_info;
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uint32_t sh_addr_align;
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uint32_t sh_ent_size;
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} __attribute((packed));
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struct elf64_section_header {
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uint32_t sh_name;
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uint32_t sh_type;
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uint64_t sh_flags;
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uint64_t sh_addr;
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uint64_t sh_offset;
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uint64_t sh_size;
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uint32_t sh_link;
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uint32_t sh_info;
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uint64_t sh_addr_align;
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uint64_t sh_ent_size;
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} __attribute((packed));
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struct elf32_symtab_entry {
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uint32_t st_name;
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uint32_t st_value;
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uint32_t st_size;
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uint8_t st_info;
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uint8_t st_other;
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uint16_t st_shndx;
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} __attribute((packed));
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struct elf64_symtab_entry {
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uint32_t st_name;
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uint8_t st_info;
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uint8_t st_other;
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uint16_t st_shndx;
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uint64_t st_value;
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uint64_t st_size;
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} __attribute((packed));
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#endif //NEW_KERNEL_ELF_H
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