mirror of https://github.com/wolfSSL/wolfBoot.git
149 lines
3.4 KiB
C
149 lines
3.4 KiB
C
/* elf.h
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*
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* Copyright (C) 2023 wolfSSL Inc.
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*
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* This file is part of wolfBoot.
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*
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* wolfBoot is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfBoot is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef _WOLFBOOT_ELF_H
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#define _WOLFBOOT_ELF_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* header ident[0-3] */
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#define ELF_IDENT_STR "\x7F""ELF"
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/* header ident[4] */
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#define ELF_CLASS_32 (1)
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#define ELF_CLASS_64 (2)
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/* header ident[5] */
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#define ELF_ENDIAN_LITTLE (1)
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#define ELF_ENDIAN_BIG (2)
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/* header type */
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#define ELF_HET_EXEC (2)
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/* section header type */
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#define ELF_SHT_PROGBITS (1)
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#define ELF_SHT_STRTAB (3)
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#define ELF_SHT_NOBITS (8)
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/* section flags */
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#define ELF_SHF_ALLOC (0x2)
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/* program header type */
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#define ELF_PT_LOAD (0x1)
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typedef struct elf32_header {
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uint8_t ident[16];
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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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uint32_t entry;
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uint32_t ph_offset;
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uint32_t sh_offset;
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uint32_t flags;
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uint16_t header_size;
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uint16_t ph_entry_size;
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uint16_t ph_entry_count;
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uint16_t sh_entry_size;
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uint16_t sh_entry_count;
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uint16_t sh_str_index;
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} elf32_header;
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typedef struct elf32_section_header {
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uint32_t name;
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uint32_t type;
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uint32_t flags;
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uint32_t 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 addr_align;
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uint32_t entry_size;
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} elf32_section_header;
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typedef struct elf32_program_header {
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uint32_t type;
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uint32_t offset;
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uint32_t vaddr;
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uint32_t paddr;
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uint32_t file_size;
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uint32_t mem_size;
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uint32_t flags;
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uint32_t align;
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} elf32_program_header;
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typedef struct elf64_header {
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uint8_t ident[16];
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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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uint64_t entry;
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uint64_t ph_offset;
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uint64_t sh_offset;
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uint32_t flags;
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uint16_t header_size;
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uint16_t ph_entry_size;
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uint16_t ph_entry_count;
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uint16_t sh_entry_size;
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uint16_t sh_entry_count;
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uint16_t sh_str_index;
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} elf64_header;
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typedef struct elf64_section_header {
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uint32_t name;
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uint32_t type;
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uint64_t flags;
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uint64_t 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 addr_align;
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uint64_t entry_size;
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} elf64_section_header;
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typedef struct elf64_program_header {
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uint32_t type;
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uint32_t flags;
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uint64_t offset;
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uint64_t vaddr;
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uint64_t paddr;
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uint64_t file_size;
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uint64_t mem_size;
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uint64_t align;
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} elf64_program_header;
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typedef int (*elf_mmu_map_cb)(uint64_t, uint64_t, uint32_t);
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int elf_load_image_mmu(uint8_t *image, uintptr_t *entry, elf_mmu_map_cb mmu_cb);
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int elf_load_image(uint8_t *image, uintptr_t *entry);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _WOLFBOOT_ELF_H */
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