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/* 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;
};
/* 64-bit ELF section header */
struct elf64_shdr {
uint32_t sh_name;
uint32_t sh_type;
uint64_t sh_flags;
#define ELF_SFLAGS_X 0x4
#define ELF_SFLAGS_A 0x2
#define ELF_SFLAGS_W 0x1
uint64_t sh_addr;
uint64_t sh_offset;
uint64_t sh_size;
uint32_t sh_link;
uint32_t sh_info;
uint64_t sh_addralign;
int64_t sh_entsize;
};
/* 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 */
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