/**************************************************************************** * include/elf64.h * * SPDX-License-Identifier: Apache-2.0 * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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 __INCLUDE_ELF64_H #define __INCLUDE_ELF64_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #define ELF_CLASS ELFCLASS64 /* See ELF-64 Object File Format: Version 1.5 Draft 2 */ #define ELF64_ST_BIND(i) ((i) >> 4) #define ELF64_ST_TYPE(i) ((i) & 0xf) #define ELF64_ST_INFO(b,t) (((b) << 4) | ((t) & 0xf)) #define ELF64_ST_VISIBILITY(o) ((o) & 0x3) /* Generic macro to abstract ELF32/ELF64 type/bind */ #define ELF_ST_TYPE(a) ELF64_ST_TYPE(a) #define ELF_ST_BIND(a) ELF64_ST_BIND(a) #define ELF_ST_VISIBILITY(o) ELF64_ST_VISIBILITY(o) /* Definitions for Elf64_Rel*::r_info */ #define ELF64_R_SYM(i) ((i) >> 32) #define ELF64_R_TYPE(i) ((i) & 0xffffffffL) #define ELF64_R_INFO(s,t) (((s)<< 32) + ((t) & 0xffffffffL)) #define ELF_R_SYM(i) ELF64_R_SYM(i) #define ELF_R_TYPE(i) ELF64_R_TYPE(i) /**************************************************************************** * Public Type Definitions ****************************************************************************/ /* Table 1: ELF-64 Data Types */ typedef uint64_t Elf64_Addr; /* Unsigned program address */ typedef uint64_t Elf64_Off; /* Unsigned file offset */ typedef uint16_t Elf64_Half; /* Unsigned medium integer */ typedef uint32_t Elf64_Word; /* Unsigned long integer */ typedef int32_t Elf64_Sword; /* Signed integer */ typedef uint64_t Elf64_Xword; /* Unsigned long integer */ typedef int64_t Elf64_Sxword; /* Signed large integer */ /* Figure 2: ELF-64 Header */ typedef struct { unsigned char e_ident[EI_NIDENT]; /* ELF identification */ Elf64_Half e_type; /* Object file type */ Elf64_Half e_machine; /* Machine type */ Elf64_Word e_version; /* Object file version */ Elf64_Addr e_entry; /* Entry point address */ Elf64_Off e_phoff; /* Program header offset */ Elf64_Off e_shoff; /* Section header offset */ Elf64_Word e_flags; /* Processor-specific flags */ Elf64_Half e_ehsize; /* ELF header size */ Elf64_Half e_phentsize; /* Size of program header entry */ Elf64_Half e_phnum; /* Number of program header entry */ Elf64_Half e_shentsize; /* Size of section header entry */ Elf64_Half e_shnum; /* Number of section header entries */ Elf64_Half e_shstrndx; /* Section name string table index */ } Elf64_Ehdr; /* Figure 3: ELF-64 Section Header */ typedef struct { Elf64_Word sh_name; /* Section name */ Elf64_Word sh_type; /* Section type */ Elf64_Xword sh_flags; /* Section attributes */ Elf64_Addr sh_addr; /* Virtual address in memory */ Elf64_Off sh_offset; /* Offset in file */ Elf64_Xword sh_size; /* Size of section */ Elf64_Word sh_link; /* Link to other section */ Elf64_Word sh_info; /* Miscellaneous information */ Elf64_Xword sh_addralign; /* Address alignment boundary */ Elf64_Xword sh_entsize; /* Size of entries, if section has table */ } Elf64_Shdr; /* Figure 4: ELF-64 Symbol Table Entry */ typedef struct { Elf64_Word st_name; /* Symbol name */ unsigned char st_info; /* Type and Binding attributes */ unsigned char st_other; /* Reserved */ Elf64_Half st_shndx; /* Section table index */ Elf64_Addr st_value; /* Symbol value */ Elf64_Xword st_size; /* Size of object (e.g., common) */ } Elf64_Sym; /* Figure 5: ELF-64 Relocation Entries */ typedef struct { Elf64_Addr r_offset; /* Address of reference */ Elf64_Xword r_info; /* Symbol index and type of relocation */ } Elf64_Rel; typedef struct { Elf64_Addr r_offset; /* Address of reference */ Elf64_Xword r_info; /* Symbol index and type of relocation */ Elf64_Sxword r_addend; /* Constant part of expression */ } Elf64_Rela; /* Figure 6: ELF-64 Program Header Table Entry */ typedef struct { Elf64_Word p_type; /* Type of segment */ Elf64_Word p_flags; /* Segment attributes */ Elf64_Off p_offset; /* Offset in file */ Elf64_Addr p_vaddr; /* Virtual address in memory */ Elf64_Addr p_paddr; /* Reserved */ Elf64_Xword p_filesz; /* Size of segment in file */ Elf64_Xword p_memsz; /* Size of segment in memory */ Elf64_Xword p_align; /* Alignment of segment */ } Elf64_Phdr; /* Figure 7. Format of a Note Section */ typedef struct { Elf64_Word n_namesz; /* Length of the note's name. */ Elf64_Word n_descsz; /* Length of the note's descriptor. */ Elf64_Word n_type; /* Type of the note. */ } Elf64_Nhdr; /* Figure 8: Dynamic Table Structure */ typedef struct { Elf64_Sxword d_tag; union { Elf64_Xword d_val; Elf64_Addr d_ptr; } d_un; } Elf64_Dyn; typedef Elf64_Addr Elf_Addr; typedef Elf64_Ehdr Elf_Ehdr; typedef Elf64_Rel Elf_Rel; typedef Elf64_Rela Elf_Rela; typedef Elf64_Nhdr Elf_Nhdr; typedef Elf64_Phdr Elf_Phdr; typedef Elf64_Sym Elf_Sym; typedef Elf64_Shdr Elf_Shdr; typedef Elf64_Off Elf_Off; typedef Elf64_Word Elf_Word; typedef Elf64_Dyn Elf_Dyn; #endif /* __INCLUDE_ELF64_H */