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Diffstat (limited to 'include/elf.h')
| -rw-r--r-- | include/elf.h | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/include/elf.h b/include/elf.h new file mode 100644 index 0000000..6ffcf5d --- /dev/null +++ b/include/elf.h @@ -0,0 +1,228 @@ +/* + * Copyright (C) 2025 Danny Holman <dholman@gymli.org> + * + * This file is part of BoxOS, a free and open-source Unix-like operating + * system. + * + * BoxOS is free software; you can redistribute it and/or modify under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * BoxOS is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; + * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A + * PARTICULAR PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * BoxOS; if not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef ELF_H +#define ELF_H + +//#ifdef __cplusplus +//extern "C" { +//#endif + +#include <stdint.h> + +#define EI_NIDENT (16) + +#define ELF_MAGIC "\177ELF" + +#define EI_CLASS 4 +#define ELFCLASSNONE 0 +#define ELFCLASS32 1 +#define ELFCLASS64 2 +#define ELFCLASSNUM 3 + +#define EI_DATA 5 +#define ELFDATANONE 0 +#define ELFDATA2LSB 1 +#define ELFDATA2MSB 2 +#define ELFDATANUM 3 + +#define ELFOSABI_SYSV 0 +#define ELFOSABI_HPUX 1 +#define ELFOSABI_NETBSD 2 +#define ELFOSABI_LINUX 3 +#define ELFOSABI_SOLARIS 6 +#define ELFOSABI_AIX 7 +#define ELFOSABI_IRIX 8 +#define ELFOSABI_FREEBSD 9 +#define ELFOSABI_OPENBSD 12 +#define ELFOSABI_ARM_AEABI 64 +#define ELFOSABI_ARM 97 +#define ELFOSABI_STANDALONE 255 + +#define ET_NONE 0 +#define ET_REL 1 +#define ET_EXEC 2 +#define ET_DYN 3 +#define ET_CORE 4 +#define ET_NUM 5 +#define ET_LOOS 0xFE00 +#define ET_HIOS 0xFEFF +#define ET_LOPROC 0xFF00 +#define ET_HIPROC 0xFFFF + +#define EM_NONE 0 +#define EM_M32 1 +#define EM_SPARC 2 +#define EM_386 3 +#define EM_68K 4 +#define EM_88K 5 +#define EM_IAMCU 6 +#define EM_860 7 +#define EM_MIPS 8 +#define EM_S370 9 +#define EM_MIPS_RS3_LE 10 +#define EM_PARISC 15 +#define EM_VPP500 17 +#define EM_SPARC32PLUS 18 +#define EM_960 19 +#define EM_PPC 20 +#define EM_PPC64 21 +#define EM_S390 22 +#define EM_SPU 23 +#define EM_V800 36 +#define EM_FR20 37 +#define EM_RH32 38 +#define EM_RCE 39 +#define EM_ARM 40 +#define EM_FAKE_ALPHA 41 +#define EM_SH 42 +#define EM_SPARCV9 43 +#define EM_TRICORE 44 +#define EM_ARC 45 +#define EM_H8_300 46 +#define EM_H8_300H 47 +#define EM_H8S 48 +#define EM_H8_500 49 +#define EM_IA_64 50 +#define EM_MIPS_X 51 +// TODO: the rest of these +#define EM_X86_64 62 +#define EM_AARCH64 183 +#define EM_RISCV 243 + +#define PT_NULL 0 +#define PT_LOAD 1 +#define PT_DYNAMIC 2 +#define PT_INTERP 3 +#define PT_NOTE 4 +#define PT_SHLIB 5 +#define PT_PHDR 6 +#define PT_TLS 7 +#define PT_NUM 8 +#define PT_LOOS 0x60000000 +#define PT_GNU_EH_FRAME 0x6474e550 +#define PT_GNU_STACK 0x6474e551 +#define PT_GNU_RELRO 0x6474e552 +#define PT_GNU_PROPERTY 0x6474e553 +#define PT_GNU_SFRAME 0x6474e554 + +#define R_X86_64_NONE 0 +#define R_X86_64_64 1 +#define R_X86_64_PC32 2 +#define R_X86_64_GOT32 3 +#define R_X86_64_PLT32 4 +#define R_X86_64_COPY 5 +#define R_X86_64_GLOB_DAT 6 +#define R_X86_64_JUMP_SLOT 7 +#define R_X86_64_RELATIVE 8 +#define R_X86_64_GOTPCREL 9 +#define R_X86_64_32 10 +#define R_X86_64_32S 11 +#define R_X86_64_16 12 +#define R_X86_64_PC16 13 +#define R_X86_64_8 14 +#define R_X86_64_PC8 15 +#define R_X86_64_DTPMOD64 16 +#define R_X86_64_DTPOFF64 17 +#define R_X86_64_TPOFF64 18 +#define R_X86_64_TLSGD 19 +#define R_X86_64_TLSLD 20 +#define R_X86_64_DTPOFF32 21 +#define R_X86_64_GOTTPOFF 22 +#define R_X86_64_TPOFF32 23 +#define R_X86_64_PC64 24 +#define R_X86_64_GOTOFF64 25 +#define R_X86_64_GOTPC32 26 +#define R_X86_64_GOT64 27 +#define R_X86_64_GOTPCREL64 28 +#define R_X86_64_GOTPC64 29 +#define R_X86_64_GOTPLT64 30 +#define R_X86_64_PLTOFF64 31 +#define R_X86_64_SIZE32 32 +#define R_X86_64_SIZE64 33 +// TODO +#define R_X86_64_NUM 43 + +typedef struct { + uint8_t e_ident[16]; + uint16_t e_type; + uint16_t e_machine; + uint32_t e_version; + uint32_t e_entry; + uint32_t e_phoff; + uint32_t e_shoff; + uint32_t e_flags; + uint16_t e_ehsize; + uint16_t e_phentsize; + uint16_t e_phnum; + uint16_t e_shentsize; + uint16_t e_shnum; + uint16_t e_shstrndx; +} Elf32_Ehdr; + +typedef struct { + uint8_t e_ident[16]; + uint16_t e_type; + uint16_t e_machine; + uint32_t e_version; + uint64_t e_entry; + uint64_t e_phoff; + uint64_t e_shoff; + uint32_t e_flags; + uint16_t e_ehsize; + uint16_t e_phentsize; + uint16_t e_phnum; + uint16_t e_shentsize; + uint16_t e_shnum; + uint16_t e_shstrndx; +} Elf64_Ehdr; + +typedef struct { + uint32_t p_type; + uint32_t p_flags; + uint32_t p_offset; + uint32_t p_vaddr; + uint32_t p_paddr; + uint32_t p_filesz; + uint32_t p_memsz; + uint32_t p_align; +} Elf32_Phdr; + +typedef struct { + uint32_t p_type; + uint32_t p_flags; + uint64_t p_offset; + uint64_t p_vaddr; + uint64_t p_paddr; + uint64_t p_filesz; + uint64_t p_memsz; + uint64_t p_align; +} Elf64_Phdr; + +typedef struct { + uint32_t r_offset; + uint32_t r_info; +} Elf32_Rel; + +typedef struct { + uint64_t r_offset; + uint64_t r_info; +} Elf64_Rel; + +#endif |