| /* |
| * sys/elfcommon.h |
| */ |
| |
| #ifndef _SYS_ELFCOMMON_H |
| #define _SYS_ELFCOMMON_H |
| |
| #include <stdint.h> |
| |
| /* Segment types */ |
| #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_LOOS 0x60000000 |
| #define PT_HIOS 0x6fffffff |
| #define PT_LOPROC 0x70000000 |
| #define PT_HIPROC 0x7fffffff |
| #define PT_GNU_EH_FRAME 0x6474e550 /* Extension, eh? */ |
| |
| /* 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 |
| |
| /* ELF machine types */ |
| #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 /* Not used in Linux at least */ |
| #define EM_860 7 |
| #define EM_MIPS 8 /* R3k, bigendian(?) */ |
| #define EM_MIPS_RS4_BE 10 /* R4k BE */ |
| #define EM_PARISC 15 |
| #define EM_SPARC32PLUS 18 |
| #define EM_PPC 20 |
| #define EM_PPC64 21 |
| #define EM_S390 22 |
| #define EM_SH 42 |
| #define EM_SPARCV9 43 /* v9 = SPARC64 */ |
| #define EM_H8_300H 47 |
| #define EM_H8S 48 |
| #define EM_IA_64 50 /* Itanic */ |
| #define EM_X86_64 62 |
| #define EM_CRIS 76 |
| #define EM_V850 87 |
| #define EM_ALPHA 0x9026 /* Interrim Alpha that stuck around */ |
| #define EM_CYGNUS_V850 0x9080 /* Old v850 ID used by Cygnus */ |
| #define EM_S390_OLD 0xA390 /* Obsolete interrim value for S/390 */ |
| |
| /* Dynamic type values */ |
| #define DT_NULL 0 /* Marks end of dynamic section */ |
| #define DT_NEEDED 1 /* Name of needed library */ |
| #define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ |
| #define DT_PLTGOT 3 /* Processor defined value */ |
| #define DT_HASH 4 /* Address of symbol hash table */ |
| #define DT_STRTAB 5 /* Address of string table */ |
| #define DT_SYMTAB 6 /* Address of symbol table */ |
| #define DT_RELA 7 /* Address of Rela relocs */ |
| #define DT_RELASZ 8 /* Total size of Rela relocs */ |
| #define DT_RELAENT 9 /* Size of one Rela reloc */ |
| #define DT_STRSZ 10 /* Size of string table */ |
| #define DT_SYMENT 11 /* Size of one symbol table entry */ |
| #define DT_INIT 12 /* Address of init function */ |
| #define DT_FINI 13 /* Address of termination function */ |
| #define DT_SONAME 14 /* Name of shared object */ |
| #define DT_RPATH 15 /* Library search path (deprecated) */ |
| #define DT_SYMBOLIC 16 /* Start symbol search here */ |
| #define DT_REL 17 /* Address of Rel relocs */ |
| #define DT_RELSZ 18 /* Total size of Rel relocs */ |
| #define DT_RELENT 19 /* Size of one Rel reloc */ |
| #define DT_PLTREL 20 /* Type of reloc in PLT */ |
| #define DT_DEBUG 21 /* For debugging; unspecified */ |
| #define DT_TEXTREL 22 /* Reloc might modify .text */ |
| #define DT_JMPREL 23 /* Address of PLT relocs */ |
| #define DT_BIND_NOW 24 /* Process relocations of object */ |
| #define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ |
| #define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ |
| #define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ |
| #define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ |
| #define DT_RUNPATH 29 /* Library search path */ |
| #define DT_FLAGS 30 /* Flags for the object being loaded */ |
| #define DT_ENCODING 32 /* Start of encoded range */ |
| #define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ |
| #define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ |
| #define DT_NUM 34 /* Number used */ |
| #define DT_LOOS 0x6000000d /* Start of OS-specific */ |
| #define DT_HIOS 0x6ffff000 /* End of OS-specific */ |
| #define DT_LOPROC 0x70000000 /* Start of processor-specific */ |
| #define DT_HIPROC 0x7fffffff /* End of processor-specific */ |
| |
| #define DT_VALRNGLO 0x6ffffd00 |
| #define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */ |
| #define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */ |
| #define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */ |
| #define DT_CHECKSUM 0x6ffffdf8 |
| #define DT_PLTPADSZ 0x6ffffdf9 |
| #define DT_MOVEENT 0x6ffffdfa |
| #define DT_MOVESZ 0x6ffffdfb |
| #define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */ |
| #define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting |
| the following DT_* entry. */ |
| #define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */ |
| #define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */ |
| #define DT_VALRNGHI 0x6ffffdff |
| #define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */ |
| #define DT_VALNUM 12 |
| |
| /* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the |
| Dyn.d_un.d_ptr field of the Elf*_Dyn structure. |
| |
| If any adjustment is made to the ELF object after it has been |
| built these entries will need to be adjusted. */ |
| #define DT_ADDRRNGLO 0x6ffffe00 |
| #define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table. */ |
| #define DT_TLSDESC_PLT 0x6ffffef6 |
| #define DT_TLSDESC_GOT 0x6ffffef7 |
| #define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */ |
| #define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */ |
| #define DT_CONFIG 0x6ffffefa /* Configuration information. */ |
| #define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */ |
| #define DT_AUDIT 0x6ffffefc /* Object auditing. */ |
| #define DT_PLTPAD 0x6ffffefd /* PLT padding. */ |
| #define DT_MOVETAB 0x6ffffefe /* Move table. */ |
| #define DT_SYMINFO 0x6ffffeff /* Syminfo table. */ |
| #define DT_ADDRRNGHI 0x6ffffeff |
| #define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */ |
| #define DT_ADDRNUM 11 |
| |
| /* The versioning entry types. The next are defined as part of the |
| GNU extension. */ |
| #define DT_VERSYM 0x6ffffff0 |
| |
| #define DT_RELACOUNT 0x6ffffff9 |
| #define DT_RELCOUNT 0x6ffffffa |
| |
| /* These were chosen by Sun. */ |
| #define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */ |
| #define DT_VERDEF 0x6ffffffc /* Address of version definition |
| table */ |
| #define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */ |
| #define DT_VERNEED 0x6ffffffe /* Address of table with needed |
| versions */ |
| #define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */ |
| #define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */ |
| #define DT_VERSIONTAGNUM 16 |
| |
| /* Sun added these machine-independent extensions in the "processor-specific" |
| range. Be compatible. */ |
| #define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */ |
| #define DT_FILTER 0x7fffffff /* Shared object to get values from */ |
| #define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) |
| #define DT_EXTRANUM 3 |
| |
| /* Auxilliary table entries */ |
| #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 */ |
| #define AT_PLATFORM 15 /* string identifying CPU for optimizations */ |
| #define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */ |
| #define AT_CLKTCK 17 /* frequency at which times() increments */ |
| /* 18..22 = ? */ |
| #define AT_SECURE 23 /* secure mode boolean */ |
| |
| /* Program header permission flags */ |
| #define PF_X 0x1 |
| #define PF_W 0x2 |
| #define PF_R 0x4 |
| |
| /* Section header types */ |
| #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 |
| |
| /* Section header flags */ |
| #define SHF_WRITE 0x1 |
| #define SHF_ALLOC 0x2 |
| #define SHF_EXECINSTR 0x4 |
| #define SHF_MASKPROC 0xf0000000 |
| |
| /* Special section numbers */ |
| #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 |
| |
| /* Symbol table definitions */ |
| |
| /* How to extract and insert information held in the st_info field. */ |
| |
| #define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) |
| #define ELF32_ST_TYPE(val) ((val) & 0xf) |
| #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) |
| |
| /* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ |
| #define ELF64_ST_BIND(val) ELF32_ST_BIND (val) |
| #define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) |
| #define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) |
| |
| /* Legal values for ST_BIND subfield of st_info (symbol binding). */ |
| |
| #define STB_LOCAL 0 /* Local symbol */ |
| #define STB_GLOBAL 1 /* Global symbol */ |
| #define STB_WEAK 2 /* Weak symbol */ |
| #define STB_NUM 3 /* Number of defined types. */ |
| #define STB_LOOS 10 /* Start of OS-specific */ |
| #define STB_HIOS 12 /* End of OS-specific */ |
| #define STB_LOPROC 13 /* Start of processor-specific */ |
| #define STB_HIPROC 15 /* End of processor-specific */ |
| |
| /* Legal values for ST_TYPE subfield of st_info (symbol type). */ |
| |
| #define STT_NOTYPE 0 /* Symbol type is unspecified */ |
| #define STT_OBJECT 1 /* Symbol is a data object */ |
| #define STT_FUNC 2 /* Symbol is a code object */ |
| #define STT_SECTION 3 /* Symbol associated with a section */ |
| #define STT_FILE 4 /* Symbol's name is file name */ |
| #define STT_COMMON 5 /* Symbol is a common data object */ |
| #define STT_TLS 6 /* Symbol is thread-local data object*/ |
| #define STT_NUM 7 /* Number of defined types. */ |
| #define STT_LOOS 10 /* Start of OS-specific */ |
| #define STT_HIOS 12 /* End of OS-specific */ |
| #define STT_LOPROC 13 /* Start of processor-specific */ |
| #define STT_HIPROC 15 /* End of processor-specific */ |
| |
| |
| /* Symbol table indices are found in the hash buckets and chain table |
| of a symbol hash table section. This special index value indicates |
| the end of a chain, meaning no further symbols are found in that bucket. */ |
| |
| #define STN_UNDEF 0 /* End of a chain. */ |
| |
| /* Lenght of magic at the start of a file */ |
| #define EI_NIDENT 16 |
| |
| /* Magic number constants... */ |
| #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 |
| |
| /* Intel 80386 specific definitions. */ |
| |
| /* i386 relocs. */ |
| |
| #define R_386_NONE 0 /* No reloc */ |
| #define R_386_32 1 /* Direct 32 bit */ |
| #define R_386_PC32 2 /* PC relative 32 bit */ |
| #define R_386_GOT32 3 /* 32 bit GOT entry */ |
| #define R_386_PLT32 4 /* 32 bit PLT address */ |
| #define R_386_COPY 5 /* Copy symbol at runtime */ |
| #define R_386_GLOB_DAT 6 /* Create GOT entry */ |
| #define R_386_JMP_SLOT 7 /* Create PLT entry */ |
| #define R_386_RELATIVE 8 /* Adjust by program base */ |
| #define R_386_GOTOFF 9 /* 32 bit offset to GOT */ |
| #define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ |
| #define R_386_32PLT 11 |
| #define R_386_TLS_TPOFF 14 /* Offset in static TLS block */ |
| #define R_386_TLS_IE 15 /* Address of GOT entry for static TLS |
| block offset */ |
| #define R_386_TLS_GOTIE 16 /* GOT entry for static TLS block |
| offset */ |
| #define R_386_TLS_LE 17 /* Offset relative to static TLS |
| block */ |
| #define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of |
| general dynamic thread local data */ |
| #define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of |
| local dynamic thread local data |
| in LE code */ |
| #define R_386_16 20 |
| #define R_386_PC16 21 |
| #define R_386_8 22 |
| #define R_386_PC8 23 |
| #define R_386_TLS_GD_32 24 /* Direct 32 bit for general dynamic |
| thread local data */ |
| #define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */ |
| #define R_386_TLS_GD_CALL 26 /* Relocation for call to |
| __tls_get_addr() */ |
| #define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */ |
| #define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic |
| thread local data in LE code */ |
| #define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */ |
| #define R_386_TLS_LDM_CALL 30 /* Relocation for call to |
| __tls_get_addr() in LDM code */ |
| #define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */ |
| #define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */ |
| #define R_386_TLS_IE_32 33 /* GOT entry for negated static TLS |
| block offset */ |
| #define R_386_TLS_LE_32 34 /* Negated offset relative to static |
| TLS block */ |
| #define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */ |
| #define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */ |
| #define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */ |
| /* Keep this the last entry. */ |
| #define R_386_NUM 38 |
| |
| /* AMD x86-64 relocations. */ |
| #define R_X86_64_NONE 0 /* No reloc */ |
| #define R_X86_64_64 1 /* Direct 64 bit */ |
| #define R_X86_64_PC32 2 /* PC relative 32 bit signed */ |
| #define R_X86_64_GOT32 3 /* 32 bit GOT entry */ |
| #define R_X86_64_PLT32 4 /* 32 bit PLT address */ |
| #define R_X86_64_COPY 5 /* Copy symbol at runtime */ |
| #define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ |
| #define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ |
| #define R_X86_64_RELATIVE 8 /* Adjust by program base */ |
| #define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative |
| offset to GOT */ |
| #define R_X86_64_32 10 /* Direct 32 bit zero extended */ |
| #define R_X86_64_32S 11 /* Direct 32 bit sign extended */ |
| #define R_X86_64_16 12 /* Direct 16 bit zero extended */ |
| #define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ |
| #define R_X86_64_8 14 /* Direct 8 bit sign extended */ |
| #define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ |
| #define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ |
| #define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */ |
| #define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */ |
| #define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset |
| to two GOT entries for GD symbol */ |
| #define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset |
| to two GOT entries for LD symbol */ |
| #define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ |
| #define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset |
| to GOT entry for IE symbol */ |
| #define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */ |
| #define R_X86_64_PC64 24 /* PC relative 64 bit */ |
| #define R_X86_64_GOTOFF64 25 /* 64 bit offset to GOT */ |
| #define R_X86_64_GOTPC32 26 /* 32 bit signed pc relative |
| offset to GOT */ |
| #define R_X86_64_GOT64 27 /* 64-bit GOT entry offset */ |
| #define R_X86_64_GOTPCREL64 28 /* 64-bit PC relative offset |
| to GOT entry */ |
| #define R_X86_64_GOTPC64 29 /* 64-bit PC relative offset to GOT */ |
| #define R_X86_64_GOTPLT64 30 /* like GOT64, says PLT entry needed */ |
| #define R_X86_64_PLTOFF64 31 /* 64-bit GOT relative offset |
| to PLT entry */ |
| #define R_X86_64_SIZE32 32 /* Size of symbol plus 32-bit addend */ |
| #define R_X86_64_SIZE64 33 /* Size of symbol plus 64-bit addend */ |
| #define R_X86_64_GOTPC32_TLSDESC 34 /* GOT offset for TLS descriptor. */ |
| #define R_X86_64_TLSDESC_CALL 35 /* Marker for call through TLS |
| descriptor. */ |
| #define R_X86_64_TLSDESC 36 /* TLS descriptor. */ |
| #define R_X86_64_IRELATIVE 37 /* Adjust indirectly by program base */ |
| |
| #define R_X86_64_NUM 38 |
| |
| #endif /* _SYS_ELFCOMMON_H */ |
