| #ifndef _LINUX_ELF_H |
| #define _LINUX_ELF_H |
| |
| #include <linux/types.h> |
| #include <linux/auxvec.h> |
| #include <linux/elf-em.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 |
| |
| /* 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 */ |