430 lines
10 KiB
C
430 lines
10 KiB
C
#ifndef _LINUX_ELF_H
|
|
#define _LINUX_ELF_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/auxvec.h>
|
|
#include <asm/elf.h>
|
|
|
|
#ifndef elf_read_implies_exec
|
|
/* Executables for which elf_read_implies_exec() returns TRUE will
|
|
have the READ_IMPLIES_EXEC personality flag set automatically.
|
|
Override in asm/elf.h as needed. */
|
|
# define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
|
|
#endif
|
|
|
|
/* 32-bit ELF base types. */
|
|
typedef __u32 Elf32_Addr;
|
|
typedef __u16 Elf32_Half;
|
|
typedef __u32 Elf32_Off;
|
|
typedef __s32 Elf32_Sword;
|
|
typedef __u32 Elf32_Word;
|
|
|
|
/* 64-bit ELF base types. */
|
|
typedef __u64 Elf64_Addr;
|
|
typedef __u16 Elf64_Half;
|
|
typedef __s16 Elf64_SHalf;
|
|
typedef __u64 Elf64_Off;
|
|
typedef __s32 Elf64_Sword;
|
|
typedef __u32 Elf64_Word;
|
|
typedef __u64 Elf64_Xword;
|
|
typedef __s64 Elf64_Sxword;
|
|
|
|
/* These constants are for the segment types stored in the image headers */
|
|
#define PT_NULL 0
|
|
#define PT_LOAD 1
|
|
#define PT_DYNAMIC 2
|
|
#define PT_INTERP 3
|
|
#define PT_NOTE 4
|
|
#define PT_SHLIB 5
|
|
#define PT_PHDR 6
|
|
#define PT_TLS 7 /* Thread local storage segment */
|
|
#define PT_LOOS 0x60000000 /* OS-specific */
|
|
#define PT_HIOS 0x6fffffff /* OS-specific */
|
|
#define PT_LOPROC 0x70000000
|
|
#define PT_HIPROC 0x7fffffff
|
|
#define PT_GNU_EH_FRAME 0x6474e550
|
|
|
|
#define PT_GNU_STACK (PT_LOOS + 0x474e551)
|
|
|
|
/* These constants define the different elf file types */
|
|
#define ET_NONE 0
|
|
#define ET_REL 1
|
|
#define ET_EXEC 2
|
|
#define ET_DYN 3
|
|
#define ET_CORE 4
|
|
#define ET_LOPROC 0xff00
|
|
#define ET_HIPROC 0xffff
|
|
|
|
/* These constants define the various ELF target machines */
|
|
#define EM_NONE 0
|
|
#define EM_M32 1
|
|
#define EM_SPARC 2
|
|
#define EM_386 3
|
|
#define EM_68K 4
|
|
#define EM_88K 5
|
|
#define EM_486 6 /* Perhaps disused */
|
|
#define EM_860 7
|
|
|
|
#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */
|
|
|
|
#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
|
|
|
|
#define EM_PARISC 15 /* HPPA */
|
|
|
|
#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
|
|
|
|
#define EM_PPC 20 /* PowerPC */
|
|
#define EM_PPC64 21 /* PowerPC64 */
|
|
|
|
#define EM_SH 42 /* SuperH */
|
|
|
|
#define EM_SPARCV9 43 /* SPARC v9 64-bit */
|
|
|
|
#define EM_IA_64 50 /* HP/Intel IA-64 */
|
|
|
|
#define EM_X86_64 62 /* AMD x86-64 */
|
|
|
|
#define EM_S390 22 /* IBM S/390 */
|
|
|
|
#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
|
|
|
|
#define EM_V850 87 /* NEC v850 */
|
|
|
|
#define EM_M32R 88 /* Renesas M32R */
|
|
|
|
#define EM_H8_300 46 /* Renesas H8/300,300H,H8S */
|
|
|
|
/*
|
|
* This is an interim value that we will use until the committee comes
|
|
* up with a final number.
|
|
*/
|
|
#define EM_ALPHA 0x9026
|
|
|
|
/* Bogus old v850 magic number, used by old tools. */
|
|
#define EM_CYGNUS_V850 0x9080
|
|
|
|
/* Bogus old m32r magic number, used by old tools. */
|
|
#define EM_CYGNUS_M32R 0x9041
|
|
|
|
/*
|
|
* This is the old interim value for S/390 architecture
|
|
*/
|
|
#define EM_S390_OLD 0xA390
|
|
|
|
#define EM_FRV 0x5441 /* Fujitsu FR-V */
|
|
|
|
/* This is the info that is needed to parse the dynamic section of the file */
|
|
#define DT_NULL 0
|
|
#define DT_NEEDED 1
|
|
#define DT_PLTRELSZ 2
|
|
#define DT_PLTGOT 3
|
|
#define DT_HASH 4
|
|
#define DT_STRTAB 5
|
|
#define DT_SYMTAB 6
|
|
#define DT_RELA 7
|
|
#define DT_RELASZ 8
|
|
#define DT_RELAENT 9
|
|
#define DT_STRSZ 10
|
|
#define DT_SYMENT 11
|
|
#define DT_INIT 12
|
|
#define DT_FINI 13
|
|
#define DT_SONAME 14
|
|
#define DT_RPATH 15
|
|
#define DT_SYMBOLIC 16
|
|
#define DT_REL 17
|
|
#define DT_RELSZ 18
|
|
#define DT_RELENT 19
|
|
#define DT_PLTREL 20
|
|
#define DT_DEBUG 21
|
|
#define DT_TEXTREL 22
|
|
#define DT_JMPREL 23
|
|
#define DT_LOPROC 0x70000000
|
|
#define DT_HIPROC 0x7fffffff
|
|
|
|
/* This info is needed when parsing the symbol table */
|
|
#define STB_LOCAL 0
|
|
#define STB_GLOBAL 1
|
|
#define STB_WEAK 2
|
|
|
|
#define STT_NOTYPE 0
|
|
#define STT_OBJECT 1
|
|
#define STT_FUNC 2
|
|
#define STT_SECTION 3
|
|
#define STT_FILE 4
|
|
#define STT_COMMON 5
|
|
#define STT_TLS 6
|
|
|
|
#define ELF_ST_BIND(x) ((x) >> 4)
|
|
#define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf)
|
|
#define ELF32_ST_BIND(x) ELF_ST_BIND(x)
|
|
#define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)
|
|
#define ELF64_ST_BIND(x) ELF_ST_BIND(x)
|
|
#define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)
|
|
|
|
typedef struct dynamic{
|
|
Elf32_Sword d_tag;
|
|
union{
|
|
Elf32_Sword d_val;
|
|
Elf32_Addr d_ptr;
|
|
} d_un;
|
|
} Elf32_Dyn;
|
|
|
|
typedef struct {
|
|
Elf64_Sxword d_tag; /* entry tag value */
|
|
union {
|
|
Elf64_Xword d_val;
|
|
Elf64_Addr d_ptr;
|
|
} d_un;
|
|
} Elf64_Dyn;
|
|
|
|
/* The following are used with relocations */
|
|
#define ELF32_R_SYM(x) ((x) >> 8)
|
|
#define ELF32_R_TYPE(x) ((x) & 0xff)
|
|
|
|
#define ELF64_R_SYM(i) ((i) >> 32)
|
|
#define ELF64_R_TYPE(i) ((i) & 0xffffffff)
|
|
|
|
typedef struct elf32_rel {
|
|
Elf32_Addr r_offset;
|
|
Elf32_Word r_info;
|
|
} Elf32_Rel;
|
|
|
|
typedef struct elf64_rel {
|
|
Elf64_Addr r_offset; /* Location at which to apply the action */
|
|
Elf64_Xword r_info; /* index and type of relocation */
|
|
} Elf64_Rel;
|
|
|
|
typedef struct elf32_rela{
|
|
Elf32_Addr r_offset;
|
|
Elf32_Word r_info;
|
|
Elf32_Sword r_addend;
|
|
} Elf32_Rela;
|
|
|
|
typedef struct elf64_rela {
|
|
Elf64_Addr r_offset; /* Location at which to apply the action */
|
|
Elf64_Xword r_info; /* index and type of relocation */
|
|
Elf64_Sxword r_addend; /* Constant addend used to compute value */
|
|
} Elf64_Rela;
|
|
|
|
typedef struct elf32_sym{
|
|
Elf32_Word st_name;
|
|
Elf32_Addr st_value;
|
|
Elf32_Word st_size;
|
|
unsigned char st_info;
|
|
unsigned char st_other;
|
|
Elf32_Half st_shndx;
|
|
} Elf32_Sym;
|
|
|
|
typedef struct elf64_sym {
|
|
Elf64_Word st_name; /* Symbol name, index in string tbl */
|
|
unsigned char st_info; /* Type and binding attributes */
|
|
unsigned char st_other; /* No defined meaning, 0 */
|
|
Elf64_Half st_shndx; /* Associated section index */
|
|
Elf64_Addr st_value; /* Value of the symbol */
|
|
Elf64_Xword st_size; /* Associated symbol size */
|
|
} Elf64_Sym;
|
|
|
|
|
|
#define EI_NIDENT 16
|
|
|
|
typedef struct elf32_hdr{
|
|
unsigned char e_ident[EI_NIDENT];
|
|
Elf32_Half e_type;
|
|
Elf32_Half e_machine;
|
|
Elf32_Word e_version;
|
|
Elf32_Addr e_entry; /* Entry point */
|
|
Elf32_Off e_phoff;
|
|
Elf32_Off e_shoff;
|
|
Elf32_Word e_flags;
|
|
Elf32_Half e_ehsize;
|
|
Elf32_Half e_phentsize;
|
|
Elf32_Half e_phnum;
|
|
Elf32_Half e_shentsize;
|
|
Elf32_Half e_shnum;
|
|
Elf32_Half e_shstrndx;
|
|
} Elf32_Ehdr;
|
|
|
|
typedef struct elf64_hdr {
|
|
unsigned char e_ident[16]; /* ELF "magic number" */
|
|
Elf64_Half e_type;
|
|
Elf64_Half e_machine;
|
|
Elf64_Word e_version;
|
|
Elf64_Addr e_entry; /* Entry point virtual address */
|
|
Elf64_Off e_phoff; /* Program header table file offset */
|
|
Elf64_Off e_shoff; /* Section header table file offset */
|
|
Elf64_Word e_flags;
|
|
Elf64_Half e_ehsize;
|
|
Elf64_Half e_phentsize;
|
|
Elf64_Half e_phnum;
|
|
Elf64_Half e_shentsize;
|
|
Elf64_Half e_shnum;
|
|
Elf64_Half e_shstrndx;
|
|
} Elf64_Ehdr;
|
|
|
|
/* These constants define the permissions on sections in the program
|
|
header, p_flags. */
|
|
#define PF_R 0x4
|
|
#define PF_W 0x2
|
|
#define PF_X 0x1
|
|
|
|
typedef struct elf32_phdr{
|
|
Elf32_Word p_type;
|
|
Elf32_Off p_offset;
|
|
Elf32_Addr p_vaddr;
|
|
Elf32_Addr p_paddr;
|
|
Elf32_Word p_filesz;
|
|
Elf32_Word p_memsz;
|
|
Elf32_Word p_flags;
|
|
Elf32_Word p_align;
|
|
} Elf32_Phdr;
|
|
|
|
typedef struct elf64_phdr {
|
|
Elf64_Word p_type;
|
|
Elf64_Word p_flags;
|
|
Elf64_Off p_offset; /* Segment file offset */
|
|
Elf64_Addr p_vaddr; /* Segment virtual address */
|
|
Elf64_Addr p_paddr; /* Segment physical address */
|
|
Elf64_Xword p_filesz; /* Segment size in file */
|
|
Elf64_Xword p_memsz; /* Segment size in memory */
|
|
Elf64_Xword p_align; /* Segment alignment, file & memory */
|
|
} Elf64_Phdr;
|
|
|
|
/* sh_type */
|
|
#define SHT_NULL 0
|
|
#define SHT_PROGBITS 1
|
|
#define SHT_SYMTAB 2
|
|
#define SHT_STRTAB 3
|
|
#define SHT_RELA 4
|
|
#define SHT_HASH 5
|
|
#define SHT_DYNAMIC 6
|
|
#define SHT_NOTE 7
|
|
#define SHT_NOBITS 8
|
|
#define SHT_REL 9
|
|
#define SHT_SHLIB 10
|
|
#define SHT_DYNSYM 11
|
|
#define SHT_NUM 12
|
|
#define SHT_LOPROC 0x70000000
|
|
#define SHT_HIPROC 0x7fffffff
|
|
#define SHT_LOUSER 0x80000000
|
|
#define SHT_HIUSER 0xffffffff
|
|
|
|
/* sh_flags */
|
|
#define SHF_WRITE 0x1
|
|
#define SHF_ALLOC 0x2
|
|
#define SHF_EXECINSTR 0x4
|
|
#define SHF_MASKPROC 0xf0000000
|
|
|
|
/* special section indexes */
|
|
#define SHN_UNDEF 0
|
|
#define SHN_LORESERVE 0xff00
|
|
#define SHN_LOPROC 0xff00
|
|
#define SHN_HIPROC 0xff1f
|
|
#define SHN_ABS 0xfff1
|
|
#define SHN_COMMON 0xfff2
|
|
#define SHN_HIRESERVE 0xffff
|
|
|
|
typedef struct {
|
|
Elf32_Word sh_name;
|
|
Elf32_Word sh_type;
|
|
Elf32_Word sh_flags;
|
|
Elf32_Addr sh_addr;
|
|
Elf32_Off sh_offset;
|
|
Elf32_Word sh_size;
|
|
Elf32_Word sh_link;
|
|
Elf32_Word sh_info;
|
|
Elf32_Word sh_addralign;
|
|
Elf32_Word sh_entsize;
|
|
} Elf32_Shdr;
|
|
|
|
typedef struct elf64_shdr {
|
|
Elf64_Word sh_name; /* Section name, index in string tbl */
|
|
Elf64_Word sh_type; /* Type of section */
|
|
Elf64_Xword sh_flags; /* Miscellaneous section attributes */
|
|
Elf64_Addr sh_addr; /* Section virtual addr at execution */
|
|
Elf64_Off sh_offset; /* Section file offset */
|
|
Elf64_Xword sh_size; /* Size of section in bytes */
|
|
Elf64_Word sh_link; /* Index of another section */
|
|
Elf64_Word sh_info; /* Additional section information */
|
|
Elf64_Xword sh_addralign; /* Section alignment */
|
|
Elf64_Xword sh_entsize; /* Entry size if section holds table */
|
|
} Elf64_Shdr;
|
|
|
|
#define EI_MAG0 0 /* e_ident[] indexes */
|
|
#define EI_MAG1 1
|
|
#define EI_MAG2 2
|
|
#define EI_MAG3 3
|
|
#define EI_CLASS 4
|
|
#define EI_DATA 5
|
|
#define EI_VERSION 6
|
|
#define EI_OSABI 7
|
|
#define EI_PAD 8
|
|
|
|
#define ELFMAG0 0x7f /* EI_MAG */
|
|
#define ELFMAG1 'E'
|
|
#define ELFMAG2 'L'
|
|
#define ELFMAG3 'F'
|
|
#define ELFMAG "\177ELF"
|
|
#define SELFMAG 4
|
|
|
|
#define ELFCLASSNONE 0 /* EI_CLASS */
|
|
#define ELFCLASS32 1
|
|
#define ELFCLASS64 2
|
|
#define ELFCLASSNUM 3
|
|
|
|
#define ELFDATANONE 0 /* e_ident[EI_DATA] */
|
|
#define ELFDATA2LSB 1
|
|
#define ELFDATA2MSB 2
|
|
|
|
#define EV_NONE 0 /* e_version, EI_VERSION */
|
|
#define EV_CURRENT 1
|
|
#define EV_NUM 2
|
|
|
|
#define ELFOSABI_NONE 0
|
|
#define ELFOSABI_LINUX 3
|
|
|
|
#ifndef ELF_OSABI
|
|
#define ELF_OSABI ELFOSABI_NONE
|
|
#endif
|
|
|
|
/* Notes used in ET_CORE */
|
|
#define NT_PRSTATUS 1
|
|
#define NT_PRFPREG 2
|
|
#define NT_PRPSINFO 3
|
|
#define NT_TASKSTRUCT 4
|
|
#define NT_AUXV 6
|
|
#define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
|
|
|
|
|
|
/* Note header in a PT_NOTE section */
|
|
typedef struct elf32_note {
|
|
Elf32_Word n_namesz; /* Name size */
|
|
Elf32_Word n_descsz; /* Content size */
|
|
Elf32_Word n_type; /* Content type */
|
|
} Elf32_Nhdr;
|
|
|
|
/* Note header in a PT_NOTE section */
|
|
typedef struct elf64_note {
|
|
Elf64_Word n_namesz; /* Name size */
|
|
Elf64_Word n_descsz; /* Content size */
|
|
Elf64_Word n_type; /* Content type */
|
|
} Elf64_Nhdr;
|
|
|
|
#if ELF_CLASS == ELFCLASS32
|
|
|
|
extern Elf32_Dyn _DYNAMIC [];
|
|
#define elfhdr elf32_hdr
|
|
#define elf_phdr elf32_phdr
|
|
#define elf_note elf32_note
|
|
|
|
#else
|
|
|
|
extern Elf64_Dyn _DYNAMIC [];
|
|
#define elfhdr elf64_hdr
|
|
#define elf_phdr elf64_phdr
|
|
#define elf_note elf64_note
|
|
|
|
#endif
|
|
|
|
|
|
#endif /* _LINUX_ELF_H */
|