159 lines
5.6 KiB
C
159 lines
5.6 KiB
C
/****************************************************************************
|
|
* include/elf64.h
|
|
*
|
|
* 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 <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <elf.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* See ELF-64 Object File Format: Version 1.5 Draft 2 */
|
|
|
|
/* 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)
|
|
|
|
/****************************************************************************
|
|
* 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_Word p_filesz; /* Size of segment in file */
|
|
Elf64_Word p_memsz; /* Size of segment in memory */
|
|
Elf64_Word p_align; /* Alignment of segment */
|
|
} Elf64_Phdr;
|
|
|
|
/* 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_Sym Elf_Sym;
|
|
typedef Elf64_Shdr Elf_Shdr;
|
|
typedef Elf64_Word Elf_Word;
|
|
|
|
#endif /* __INCLUDE_ELF64_H */
|