diff options
Diffstat (limited to 'include/elf.h')
| -rw-r--r-- | include/elf.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/include/elf.h b/include/elf.h new file mode 100644 index 00000000..0a52f3e1 --- /dev/null +++ b/include/elf.h @@ -0,0 +1,135 @@ +/* Copyright 2013-2014 IBM Corp. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + * implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __ELF_H +#define __ELF_H + +#include <stdint.h> + +/* Generic ELF header */ +struct elf_hdr { + uint32_t ei_ident; +#define ELF_IDENT 0x7F454C46 + uint8_t ei_class; +#define ELF_CLASS_32 1 +#define ELF_CLASS_64 2 + uint8_t ei_data; +#define ELF_DATA_LSB 1 +#define ELF_DATA_MSB 2 + uint8_t ei_version; + uint8_t ei_pad[9]; + uint16_t e_type; + uint16_t e_machine; +#define ELF_MACH_PPC32 0x14 +#define ELF_MACH_PPC64 0x15 + uint32_t e_version; +}; + +/* 64-bit ELF header */ +struct elf64_hdr { + uint32_t ei_ident; + uint8_t ei_class; + uint8_t ei_data; + uint8_t ei_version; + uint8_t ei_pad[9]; + 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; +}; + +/* 64-bit ELF program header */ +struct elf64_phdr { + uint32_t p_type; +#define ELF_PTYPE_LOAD 1 + uint32_t p_flags; +#define ELF_PFLAGS_R 0x4 +#define ELF_PFLAGS_W 0x2 +#define ELF_PFLAGS_X 0x1 + uint64_t p_offset; + uint64_t p_vaddr; + uint64_t p_paddr; + uint64_t p_filesz; + uint64_t p_memsz; + uint64_t p_align; +}; + +/* Some relocation related stuff used in relocate.c */ +struct elf64_dyn { + int64_t d_tag; +#define DT_NULL 0 +#define DT_RELA 7 +#define DT_RELASZ 8 +#define DT_RELAENT 9 +#define DT_RELACOUNT 0x6ffffff9 + uint64_t d_val; +}; + +struct elf64_rela { + uint64_t r_offset; + uint64_t r_info; +#define ELF64_R_TYPE(info) ((info) & 0xffffffffu) + int64_t r_addend; +}; + +/* relocs we support */ +#define R_PPC64_RELATIVE 22 + +/* 32-bit ELF header */ +struct elf32_hdr { + uint32_t ei_ident; + uint8_t ei_class; + uint8_t ei_data; + uint8_t ei_version; + uint8_t ei_pad[9]; + 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; +}; + +/* 32-bit ELF program header*/ +struct elf32_phdr { + uint32_t p_type; + uint32_t p_offset; + uint32_t p_vaddr; + uint32_t p_paddr; + uint32_t p_filesz; + uint32_t p_memsz; + uint32_t p_flags; + uint32_t p_align; +}; + + +#endif /* __ELF_H */ |
