#ifndef _LINUX_ELF_H #define _LINUX_ELF_H #include typedef unsigned long Elf32_Addr; typedef unsigned short Elf32_Half; typedef unsigned long Elf32_Off; typedef long Elf32_Sword; typedef unsigned long Elf32_Word; /* 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_LOPROC 0x70000000 #define PT_HIPROC 0x7fffffff #define PT_MIPS_REGINFO 0x70000000 /* Flags in the e_flags field of the header */ #define EF_MIPS_NOREORDER 0x00000001 #define EF_MIPS_PIC 0x00000002 #define EF_MIPS_CPIC 0x00000004 #define EF_MIPS_ARCH 0xf0000000 /* 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 #if 0 /* These seem to be wrong ... */ #define ET_LOPROC 5 #define ET_HIPROC 6 #else #define ET_LOPROC 0xff00 #define ET_HIPROC 0xffff #endif /* 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 #define EM_SPARC64 11 /* SPARC v9 (not official) 64-bit */ #define EM_PARISC 15 /* * This is an interim value that we will use until the committee comes * up with a final number. */ #define EM_ALPHA 0x9026 /* 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 #define DT_MIPS_RLD_VERSION 0x70000001 #define DT_MIPS_TIME_STAMP 0x70000002 #define DT_MIPS_ICHECKSUM 0x70000003 #define DT_MIPS_IVERSION 0x70000004 #define DT_MIPS_FLAGS 0x70000005 #define RHF_NONE 0 #define RHF_HARDWAY 1 #define RHF_NOTPOT 2 #define DT_MIPS_BASE_ADDRESS 0x70000006 #define DT_MIPS_CONFLICT 0x70000008 #define DT_MIPS_LIBLIST 0x70000009 #define DT_MIPS_LOCAL_GOTNO 0x7000000a #define DT_MIPS_CONFLICTNO 0x7000000b #define DT_MIPS_LIBLISTNO 0x70000010 #define DT_MIPS_SYMTABNO 0x70000011 #define DT_MIPS_UNREFEXTNO 0x70000012 #define DT_MIPS_GOTSYM 0x70000013 #define DT_MIPS_HIPAGENO 0x70000014 #define DT_MIPS_RLD_MAP 0x70000016 /* 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 ELF32_ST_BIND(x) ((x) >> 4) #define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf) /* Symbolic values for the entries in the auxiliary table put on the initial stack */ #define AT_NULL 0 /* end of vector */ #define AT_IGNORE 1 /* entry should be ignored */ #define AT_EXECFD 2 /* file descriptor of program */ #define AT_PHDR 3 /* program headers for program */ #define AT_PHENT 4 /* size of program header entry */ #define AT_PHNUM 5 /* number of program headers */ #define AT_PAGESZ 6 /* system page size */ #define AT_BASE 7 /* base address of interpreter */ #define AT_FLAGS 8 /* flags */ #define AT_ENTRY 9 /* entry point of program */ #define AT_NOTELF 10 /* program is not ELF */ #define AT_UID 11 /* real uid */ #define AT_EUID 12 /* effective uid */ #define AT_GID 13 /* real gid */ #define AT_EGID 14 /* effective gid */ typedef struct dynamic{ Elf32_Sword d_tag; union{ Elf32_Sword d_val; Elf32_Addr d_ptr; } d_un; } Elf32_Dyn; typedef struct { unsigned long long d_tag; /* entry tag value */ union { unsigned long long d_val; unsigned long long 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 R_386_NONE 0 #define R_386_32 1 #define R_386_PC32 2 #define R_386_GOT32 3 #define R_386_PLT32 4 #define R_386_COPY 5 #define R_386_GLOB_DAT 6 #define R_386_JMP_SLOT 7 #define R_386_RELATIVE 8 #define R_386_GOTOFF 9 #define R_386_GOTPC 10 #define R_386_NUM 11 #define R_MIPS_NONE 0 #define R_MIPS_16 1 #define R_MIPS_32 2 #define R_MIPS_REL32 3 #define R_MIPS_26 4 #define R_MIPS_HI16 5 #define R_MIPS_LO16 6 #define R_MIPS_GPREL16 7 #define R_MIPS_LITERAL 8 #define R_MIPS_GOT16 9 #define R_MIPS_PC16 10 #define R_MIPS_CALL16 11 #define R_MIPS_GPREL32 12 /* The remaining relocs are defined on Irix, although they are not in the MIPS ELF ABI. */ #define R_MIPS_UNUSED1 13 #define R_MIPS_UNUSED2 14 #define R_MIPS_UNUSED3 15 #define R_MIPS_SHIFT5 16 #define R_MIPS_SHIFT6 17 #define R_MIPS_64 18 #define R_MIPS_GOT_DISP 19 #define R_MIPS_GOT_PAGE 20 #define R_MIPS_GOT_OFST 21 /* * The following two relocation types are specified in the the MIPS ABI * conformance guide version 1.2 but not yet in the psABI. */ #define R_MIPS_GOTHI16 22 #define R_MIPS_GOTLO16 23 #define R_MIPS_SUB 24 #define R_MIPS_INSERT_A 25 #define R_MIPS_INSERT_B 26 #define R_MIPS_DELETE 27 #define R_MIPS_HIGHER 28 #define R_MIPS_HIGHEST 29 /* * The following two relocation types are specified in the the MIPS ABI * conformance guide version 1.2 but not yet in the psABI. */ #define R_MIPS_CALLHI16 30 #define R_MIPS_CALLLO16 31 /* * This range is reserved for vendor specific relocations. */ #define R_MIPS_LOVENDOR 100 #define R_MIPS_HIVENDOR 127 /* * Sparc ELF relocation types */ #define R_SPARC_NONE 0 #define R_SPARC_8 1 #define R_SPARC_16 2 #define R_SPARC_32 3 #define R_SPARC_DISP8 4 #define R_SPARC_DISP16 5 #define R_SPARC_DISP32 6 #define R_SPARC_WDISP30 7 #define R_SPARC_WDISP22 8 #define R_SPARC_HI22 9 #define R_SPARC_22 10 #define R_SPARC_13 11 #define R_SPARC_LO10 12 #define R_SPARC_GOT10 13 #define R_SPARC_GOT13 14 #define R_SPARC_GOT22 15 #define R_SPARC_PC10 16 #define R_SPARC_PC22 17 #define R_SPARC_WPLT30 18 #define R_SPARC_COPY 19 #define R_SPARC_GLOB_DAT 20 #define R_SPARC_JMP_SLOT 21 #define R_SPARC_RELATIVE 22 #define R_SPARC_UA32 23 #define R_SPARC_PLT32 24 #define R_SPARC_HIPLT22 25 #define R_SPARC_LOPLT10 26 #define R_SPARC_PCPLT32 27 #define R_SPARC_PCPLT22 28 #define R_SPARC_PCPLT10 29 #define R_SPARC_10 30 #define R_SPARC_11 31 #define R_SPARC_WDISP16 40 #define R_SPARC_WDISP19 41 #define R_SPARC_7 43 #define R_SPARC_5 44 #define R_SPARC_6 45 /* * 68k ELF relocation types */ #define R_68K_NONE 0 #define R_68K_32 1 #define R_68K_16 2 #define R_68K_8 3 #define R_68K_PC32 4 #define R_68K_PC16 5 #define R_68K_PC8 6 #define R_68K_GOT32 7 #define R_68K_GOT16 8 #define R_68K_GOT8 9 #define R_68K_GOT32O 10 #define R_68K_GOT16O 11 #define R_68K_GOT8O 12 #define R_68K_PLT32 13 #define R_68K_PLT16 14 #define R_68K_PLT8 15 #define R_68K_PLT32O 16 #define R_68K_PLT16O 17 #define R_68K_PLT8O 18 #define R_68K_COPY 19 #define R_68K_GLOB_DAT 20 #define R_68K_JMP_SLOT 21 #define R_68K_RELATIVE 22 typedef struct elf32_rel { Elf32_Addr r_offset; Elf32_Word r_info; } Elf32_Rel; typedef struct elf64_rel { unsigned long long r_offset; /* Location at which to apply the action */ unsigned long long 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 { unsigned long long r_offset; /* Location at which to apply the action */ unsigned long long r_info; /* index and type of relocation */ unsigned long long 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 { unsigned int st_name; /* Symbol name, index in string tbl */ unsigned char st_info; /* Type and binding attributes */ unsigned char st_other; /* No defined meaning, 0 */ unsigned short st_shndx; /* Associated section index */ unsigned long long st_value; /* Value of the symbol */ unsigned long long 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" */ short int e_type; short unsigned int e_machine; int e_version; unsigned long long e_entry; /* Entry point virtual address */ unsigned long long e_phoff; /* Program header table file offset */ unsigned long long e_shoff; /* Section header table file offset */ int e_flags; short int e_ehsize; short int e_phentsize; short int e_phnum; short int e_shentsize; short int e_shnum; short int 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 { int p_type; int p_flags; unsigned long long p_offset; /* Segment file offset */ unsigned long long p_vaddr; /* Segment virtual address */ unsigned long long p_paddr; /* Segment physical address */ unsigned long long p_filesz; /* Segment size in file */ unsigned long long p_memsz; /* Segment size in memory */ unsigned long long 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 #define SHT_MIPS_LIST 0x70000000 #define SHT_MIPS_CONFLICT 0x70000002 #define SHT_MIPS_GPTAB 0x70000003 #define SHT_MIPS_UCODE 0x70000004 /* sh_flags */ #define SHF_WRITE 0x1 #define SHF_ALLOC 0x2 #define SHF_EXECINSTR 0x4 #define SHF_MASKPROC 0xf0000000 #define SHF_MIPS_GPREL 0x10000000 /* 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 #define SHN_MIPS_ACCOMON 0xff00 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 { unsigned int sh_name; /* Section name, index in string tbl */ unsigned int sh_type; /* Type of section */ unsigned long long sh_flags; /* Miscellaneous section attributes */ unsigned long long sh_addr; /* Section virtual addr at execution */ unsigned long long sh_offset; /* Section file offset */ unsigned long long sh_size; /* Size of section in bytes */ unsigned int sh_link; /* Index of another section */ unsigned int sh_info; /* Additional section information */ unsigned long long sh_addralign; /* Section alignment */ unsigned long long 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_PAD 7 #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 /* Notes used in ET_CORE */ #define NT_PRSTATUS 1 #define NT_PRFPREG 2 #define NT_PRPSINFO 3 #define NT_TASKSTRUCT 4 /* 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 */ /* * For now we use the 32 bit version of the structure until we figure * out whether we need anything better. Note - on the Alpha, "unsigned int" * is only 32 bits. */ typedef struct elf64_note { unsigned int n_namesz; /* Name size */ unsigned int n_descsz; /* Content size */ unsigned int n_type; /* Content type */ } Elf64_Nhdr; #define ELF_START_MMAP 0x80000000 #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 */