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elf

Langue: ja

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Version: 55018 (openSuse - 09/10/07)

Section: 5 (Format de fichier)

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BSD mandoc

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elf - ¼Â¹Ô²ÄÇ½¥ê¥ó¥¯¥Õ¥©¡¼¥Þ¥Ã¥È (ELF) ¥Õ¥¡¥¤¥ë¤Î¥Õ¥©¡¼¥Þ¥Ã¥È

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Fd #include <elf.h>

ÀâÌÀ

¥Ø¥Ã¥À¥Õ¥¡¥¤¥ë Aq Pa elf.h ¤Ï ELF ¼Â¹Ô²ÄÇ½¥Ð¥¤¥Ê¥ê¥Õ¥¡¥¤¥ë¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤òÄêµÁ¤¹¤ë¡£ ¤³¤ì¤é¤Î¥Õ¥¡¥¤¥ë¤È¤·¤Æ¤Ï¡¢ÄÌ¾ï¤Î¼Â¹Ô²ÄÇ½¥Õ¥¡¥¤¥ë¡¦ ºÆÇÛÃÖ²ÄÇ½¥ª¥Ö¥¸¥§¥¯¥È¥Õ¥¡¥¤¥ë¡¦¥³¥¢¥Õ¥¡¥¤¥ë¡¦¶¦Í¥é¥¤¥Ö¥é¥ê¤¬¤¢¤ë¡£

°Ê²¼¤Î·¿¤Ï N ¥Ó¥Ã¥È¥¢¡¼¥¥Æ¥¯¥Á¥ã¤Ç»È¤ï¤ì¤ë (N=32,64 ¤Ç¤¢¤ê ElfN ¤Ï Elf32 ¤Þ¤¿¤Ï Elf64 ¤òÉ½¤·¡¢ uintN_t ¤Ï uint32_t ¤Þ¤¿¤Ï uint64_t ¤òÉ½¤¹):


ElfN_Addr       Éä¹æ¤Ê¤·¤Î¥×¥í¥°¥é¥à¥¢¥É¥ì¥¹, uintN_t

ElfN_Off        Éä¹æ¤Ê¤·¤Î¥Õ¥¡¥¤¥ë¥ª¥Õ¥»¥Ã¥È, uintN_t

ElfN_Section    Éä¹æ¤Ê¤·¤Î¥»¥¯¥·¥ç¥ó¥¤¥ó¥Ç¥Ã¥¯¥¹, uint16_t

ElfN_Versym     Éä¹æ¤Ê¤·¤Î¥Ð¡¼¥¸¥ç¥ó¥·¥ó¥Ü¥ë¾ðÊó, uint16_t

Elf_Byte        unsigned char

ElfN_Half       uint16_t

ElfN_Sword      int32_t

ElfN_Word       uint32_t

ElfN_Sxword     int64_t

ElfN_Xword      uint64_t

(Ãí°Õ: *BSD ¤Ç¤ÎÍÑ¸ì¤Ï¾¯¤·°Û¤Ê¤ë¡£ Elf64_Half ¤Ï Elf32_Half ¤Î 2 ÇÜ¤Ç¤¢¤ê¡¢ Elf64Quarter ¤¬ uint16_t ¤ËÍÑ¤¤¤é¤ì¤ë¡£ º®Íð¤òÈò¤±¤ë¤¿¤á¡¢°Ê²¼¤Ç¤Ï¡¢¤³¤ì¤é¤Î·¿¤Ï¥µ¥¤¥º¤¬¼«ÌÀ¤Ê·¿¤ËÃÖ¤´¹¤¨¤Æ¤¢¤ë¡£)

¤³¤Î¥Õ¥¡¥¤¥ë¥Õ¥©¡¼¥Þ¥Ã¥È¤¬ÄêµÁ¤¹¤ëÁ´¤Æ¤Î¥Ç¡¼¥¿¹½Â¤ÂÎ¤Ï¡¢ ´ØÏ¢¤¹¤ë¥¯¥é¥¹¤Î ``¼«Á³¤Ê'' ¥µ¥¤¥º¤ÈÇÛÃÖ¤Î»Ø¿Ë¤Ë½¾¤¦¡£ É¬Í×¤Ê¾ì¹ç¡¢¥Ç¡¼¥¿¹½Â¤ÂÎ¤Ç¤ÏÌÀ¼¨Åª¤Ê¥Ñ¥Ç¥£¥ó¥° (padding, µÍ¤á¹þ¤ß) ¤¬¹Ô¤Ê¤ï¤ì¤ë¡£¤³¤ì¤Ï 4 ¥Ð¥¤¥È¥ª¥Ö¥¸¥§¥¯¥È¤ËÂÐ¤¹¤ë 4 ¥Ð¥¤¥ÈÇÛÃÖ¤òÊÝ¾Ú¤¹¤ë¤¿¤á¤ä¡¢ ¹½Â¤ÂÎ¤Î¥µ¥¤¥º¤ò 4 ¤ÎÇÜ¿ô¤Ë¤¹¤ë¤¿¤á¤Ê¤É¤Ç¤¢¤ë¡£

ELF ¥Ø¥Ã¥À¤Ï·¿ Elf32_Ehdr ¤Þ¤¿¤Ï Elf64_Ehdr ¤Çµ½Ò¤µ¤ì¤ë:


#define EI_NIDENT 16



typedef struct {

        unsigned char  e_ident[EI_NIDENT];

        uint16_t       e_type;

        uint16_t       e_machine;

        uint32_t       e_version;

        ElfN_Addr      e_entry;

        ElfN_Off       e_phoff;

        ElfN_Off       e_shoff;

        uint32_t       e_flags;

        uint16_t       e_ehsize;

        uint16_t       e_phentsize;

        uint16_t       e_phnum;

        uint16_t       e_shentsize;

        uint16_t       e_shnum;

        uint16_t       e_shstrndx;

} ElfN_Ehdr;

¥Õ¥£¡¼¥ë¥É¤Ï°Ê²¼¤Î°ÕÌ£¤ò»ý¤Ä:

e_ident

¤³¤Î¥Ð¥¤¥ÈÇÛÎó¤Ï¡¢¥×¥í¥»¥Ã¥µ¤ä¥Õ¥¡¥¤¥ë¤ÎÂ¾¤ÎÉôÊ¬¤Ë¤Ï°ÍÂ¸¤»¤º¤Ë¡¢ ¥Õ¥¡¥¤¥ë¤ò²ò¼á (interpret) ¤¹¤ë¤¿¤á¤Ë»ØÄê¤µ¤ì¤ë¡£ ¤³¤ÎÇÛÎóÆâ¤Î¤¹¤Ù¤Æ¤Î¤â¤Î¤Ï¡¢ÀÜÆ¬¼ EI_ ¤Ç»Ï¤Þ¤ë¥Þ¥¯¥í¤ÎÌ¾Á°¤¬ÉÕ¤¡¢ÀÜÆ¬¼ ELF ¤Ç»Ï¤Þ¤ëÃÍ¤ò»ý¤Ä¡£ °Ê²¼¤Î¥Þ¥¯¥í¤¬ÄêµÁ¤µ¤ì¤Æ¤¤¤ë:

EI_MAG0

¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð¡¼¤ÎÂè 1 ¥Ð¥¤¥È¡£ ELFMAG0 ¤ÇËä¤á¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ (0: 0x7f)

EI_MAG1

¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð¡¼¤ÎÂè 2 ¥Ð¥¤¥È¡£ ELFMAG1 ¤ÇËä¤á¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ (1: 'E')

EI_MAG2

¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð¡¼¤ÎÂè 3 ¥Ð¥¤¥È¡£ ELFMAG2 ¤ÇËä¤á¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ (2: 'L')

EI_MAG3

¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð¡¼¤ÎÂè 4 ¥Ð¥¤¥È¡£ ELFMAG3 ¤ÇËä¤á¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ (3: 'F')

EI_CLASS

Âè 5 ¥Ð¥¤¥È¤Ï¡¢¤³¤Î¥Ð¥¤¥Ê¥ê¤Î¥¢¡¼¥¥Æ¥¯¥Á¥ã¤ò¼¨¤¹:

ELFCLASSNONE: ¤³¤Î¥¯¥é¥¹¤ÏÉÔÀµ¤Ç¤¢¤ë¡£
ELFCLASS32: 32 ¥Ó¥Ã¥È¥¢¡¼¥¥Æ¥¯¥Á¥ã¤òÄêµÁ¤¹¤ë¡£ ¥Õ¥¡¥¤¥ë¤È²¾ÁÛ¥¢¥É¥ì¥¹¶õ´Ö¤¬ 4 ¥®¥¬¥Ð¥¤¥È¤Þ¤Ç¤Î¥Þ¥·¥ó¤ò¥µ¥Ý¡¼¥È¤¹¤ë¡£
ELFCLASS64: 64 ¥Ó¥Ã¥È¥¢¡¼¥¥Æ¥¯¥Á¥ã¤òÄêµÁ¤¹¤ë¡£

EI_DATA

Âè 6 ¥Ð¥¤¥È¤Ï¥Õ¥¡¥¤¥ëÆâ¤Î¥×¥í¥»¥Ã¥µ¸ÇÍ¥Ç¡¼¥¿¤Î ¥Ç¡¼¥¿¥¨¥ó¥³¡¼¥Ç¥£¥ó¥°¤ò»ØÄê¤¹¤ë¡£ ¸½ºß¤Î¤È¤³¤í°Ê²¼¤Î¥¨¥ó¥³¡¼¥Ç¥£¥ó¥°¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë:

ELFDATANONE: ÉÔÌÀ¤Ê¥Ç¡¼¥¿¥Õ¥©¡¼¥Þ¥Ã¥È¡£
ELFDATA2LSB: 2 ¤ÎÊä¿ô¡¢¥ê¥È¥ë¥¨¥ó¥Ç¥£¥¢¥ó¡£
ELFDATA2MSB: 2 ¤ÎÊä¿ô¡¢¥Ó¥Ã¥°¥¨¥ó¥Ç¥£¥¢¥ó¡£

EI_VERSION

ELF »ÅÍÍ¤Î¥Ð¡¼¥¸¥ç¥óÈÖ¹æ:

EV_NONE: ÉÔÀµ¤Ê¥Ð¡¼¥¸¥ç¥ó¡£
EV_CURRENT: ¸½ºß¤Î¥Ð¡¼¥¸¥ç¥ó¡£

EI_OSABI

ELFOSABI_NONE: ELFOSABI_SYSV ¤ÈÆ±¤¸¡£
ELFOSABI_SYSV: UNIX System V ABI.
ELFOSABI_HPUX: HP-UX ABI.
ELFOSABI_NETBSD: NetBSD ABI.
ELFOSABI_LINUX: Linux ABI.
ELFOSABI_SOLARIS: Solaris ABI.
ELFOSABI_IRIX: IRIX ABI.
ELFOSABI_FREEBSD: FreeBSD ABI.
ELFOSABI_TRU64: TRU64 UNIX ABI.
ELFOSABI_ARM: ARM ¥¢¡¼¥¥Æ¥¯¥Á¥ã ABI.
ELFOSABI_STANDALONE: ¥¹¥¿¥ó¥É¥¢¥í¥ó (ÁÈ¤ß¹þ¤ß) ABI.

EI_ABIVERSION

¤³¤Î¥Ð¥¤¥È¤Ï¥ª¥Ö¥¸¥§¥¯¥È¤¬¥¿¡¼¥²¥Ã¥È¤È¤·¤Æ¤¤¤ë ABI ¤Î¥Ð¡¼¥¸¥ç¥ó¤ò¼¨¤¹¡£ ¤³¤Î¥Õ¥£¡¼¥ë¥É¤Ï¸ß´¹À¤Î¤Ê¤¤ ABI ¤Î¥Ð¡¼¥¸¥ç¥ó¤ò¶èÊÌ¤¹¤ë¤¿¤á¤Ë»È¤ï¤ì¤ë¡£ ¤³¤Î¥Ð¡¼¥¸¥ç¥óÈÖ¹æ¤Î²ò¼á¤Ï¡¢ EI_OSABI ¥Õ¥£¡¼¥ë¥É¤Ç¼±ÊÌ¤µ¤ì¤ë ABI ¤Ë°ÍÂ¸¤¹¤ë¡£ ¤³¤Î»ÅÍÍ¤Ë½àµò¤¹¤ë¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ï¡¢ÃÍ 0 ¤ò»È¤¦¡£

EI_PAD

EI_BRAND

¥¢¡¼¥¥Æ¥¯¥Á¥ã ID ¤Î³«»Ï¡£

EI_NIDENT

e_ident ÇÛÎó¤Î¥µ¥¤¥º¡£

e_type

ET_NONE: ÉÔÌÀ¤Ê¥¿¥¤¥×¡£
ET_REL: ºÆÇÛÃÖ²ÄÇ½¥Õ¥¡¥¤¥ë¡£
ET_EXEC: ¼Â¹Ô²ÄÇ½¥Õ¥¡¥¤¥ë¡£
ET_DYN: ¶¦Í¥ª¥Ö¥¸¥§¥¯¥È¡£
ET_CORE: ¥³¥¢¥Õ¥¡¥¤¥ë¡£

e_machine

EM_NONE: ÉÔÌÀ¤Ê¥Þ¥·¥ó¡£
EM_M32: AT&T WE 32100.
EM_SPARC: Sun Microsystems SPARC.
EM_386: Intel 80386.
EM_68K: Motorola 68000.
EM_88K: Motorola 88000.
EM_860: Intel 80860.
EM_MIPS: MIPS RS3000 (¥Ó¥Ã¥°¥¨¥ó¥Ç¥£¥¢¥ó¤Î¤ß)¡£
EM_PARISC: HP/PA.
EM_SPARC32PLUS: ³ÈÄ¥Ì¿Îá¥»¥Ã¥ÈÉÕ¤ SPARC¡£
EM_PPC: PowerPC.
EM_PPC64: PowerPC 64-bit.
EM_S390: IBM S/390
EM_ARM: Advanced RISC Machines
EM_SH: Renesas SuperH
EM_SPARCV9: SPARC v9 64-bit.
EM_IA_64: Intel Itanium
EM_X86_64: AMD x86-64
EM_VAX: DEC Vax.

e_version

¤³¤Î¥á¥ó¥Ð¤Ï¥Õ¥¡¥¤¥ë¥Ð¡¼¥¸¥ç¥ó¤ò¼¨¤¹:

EV_NONE: ÉÔÀµ¤Ê¥Ð¡¼¥¸¥ç¥ó¡£
EV_CURRENT: ¸½ºß¤Î¥Ð¡¼¥¸¥ç¥ó¡£

e_entry

e_phoff

e_shoff

e_flags

¤³¤Î¥á¥ó¥Ð¤Ï¥Õ¥¡¥¤¥ë¤Ë´ØÏ¢ÉÕ¤±¤é¤ì¤¿¥×¥í¥»¥Ã¥µ¸ÇÍ¤Î¥Õ¥é¥°¤òÊÝ»ý¤¹¤ë¡£ ¥Õ¥é¥°¤ÎÌ¾Á°¤Ï EF_`machine_flag' ¤È¤¤¤¦·Á¼°¤Ç¤¢¤ë¡£ ¸½ºß¤Î¤È¤³¤í¥Õ¥é¥°¤ÏÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£

e_ehsize

¤³¤Î¥á¥ó¥Ð¤Ï ELF ¥Ø¥Ã¥À¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì) ¤òÊÝ»ý¤¹¤ë¡£

e_phentsize

¤³¤Î¥á¥ó¥Ð¤Ï¤³¤Î¥Õ¥¡¥¤¥ë¤Î¥×¥í¥°¥é¥à¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Î 1 ¥¨¥ó¥È¥ê¤¢¤¿¤ê¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì) ¤òÊÝ»ý¤¹¤ë; Á´¤Æ¤Î¥¨¥ó¥È¥ê¤ÏÆ±¤¸¥µ¥¤¥º¤Ç¤¢¤ë¡£

e_phnum

¤³¤Î¥á¥ó¥Ð¤Ï¥×¥í¥°¥é¥à¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Ë¤¢¤ë¥¨¥ó¥È¥ê¤Î¿ô¤òÊÝ»ý¤¹¤ë¡£ ¤è¤Ã¤Æ e_phentsize ¤È e_phnum ¤ÎÀÑ¤¬¥Æ¡¼¥Ö¥ë¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì) ¤Ë¤Ê¤ë¡£ ¥Õ¥¡¥¤¥ë¤Ë¥×¥í¥°¥é¥à¥Ø¥Ã¥À¤¬¤Ê¤¤¾ì¹ç¡¢ e_phnum ¤ÏÃÍ 0 ¤òÊÝ»ý¤¹¤ë¡£

e_shentsize

¤³¤Î¥á¥ó¥Ð¤Ï¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì) ¤òÊÝ»ý¤¹¤ë¡£ ¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¤Ï¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Î 1 ¤Ä¤Î¥¨¥ó¥È¥ê¤Ç¤¢¤ë; Á´¤Æ¤Î¥¨¥ó¥È¥ê¤ÏÆ±¤¸¥µ¥¤¥º¤Ç¤¢¤ë¡£

e_shnum

¤³¤Î¥á¥ó¥Ð¤Ï¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Ë¤¢¤ë¥¨¥ó¥È¥ê¤Î¿ô¤òÊÝ»ý¤¹¤ë¡£ ¤è¤Ã¤Æ e_shentsize ¤È e_shnum ¤ÎÀÑ¤Ï¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì) ¤Ë¤Ê¤ë¡£ ¥Õ¥¡¥¤¥ë¤Ë¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤¬¤Ê¤¤¾ì¹ç¡¢ e_shnum ¤ÏÃÍ 0 ¤òÊÝ»ý¤¹¤ë¡£

e_shstrndx

SHN_UNDEF: ¤³¤ÎÃÍ¤ÏÌ¤ÄêµÁ¡¦Â¸ºß¤·¤Ê¤¤¡¦Ìµ´Ø·¸¤½¤ÎÂ¾¡¢ °ÕÌ£¤Î¤Ê¤¤¥»¥¯¥·¥ç¥ó¤Î»²¾È¤Ç¤¢¤ë¤³¤È¤òÉ½¤¹¡£ Îã¤¨¤Ð¡¢¥»¥¯¥·¥ç¥óÈÖ¹æ SHN_UNDEF ¤Ë´ØÏ¢¤Å¤±¤Æ¡ÖÄêµÁ¡×¤µ¤ì¤¿¥·¥ó¥Ü¥ë¤Ï¡¢¡ÖÌ¤ÄêµÁ¡×¤Ê¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£
SHN_LORESERVE: ¤³¤ÎÃÍ¤ÏÍ½ÌóºÑ¤ß¤Î¥¤¥ó¥Ç¥Ã¥¯¥¹ÈÏ°Ï¤Î²¼¸Â¤ò»ØÄê¤¹¤ë¡£
SHN_LOPROC: ¤³¤ÎÃÍ°Ê¾å¤Ç SHN_HIPROC °Ê²¼¤ÎÃÍ¤Ï¡¢¥×¥í¥»¥Ã¥µ¸ÇÍ¤Î°ÕÌ£¤ËÍ½Ìó¤µ¤ì¤Æ¤¤¤ë¡£
SHN_HIPROC: ¤³¤ÎÃÍ°Ê²¼¤Ç SHN_LOPROC °Ê¾å¤ÎÃÍ¤Ï¡¢¥×¥í¥»¥Ã¥µ¸ÇÍ¤Î°ÕÌ£¤ËÍ½Ìó¤µ¤ì¤Æ¤¤¤ë¡£
SHN_ABS: ¤³¤ÎÃÍ¤ÏÂÐ±þ¤¹¤ë»²¾È¤ÎÀäÂÐÃÍ¤ò»ØÄê¤¹¤ë¡£ Îã¤¨¤Ð¡¢¥»¥¯¥·¥ç¥óÈÖ¹æ SHN_ABS ¤Ë´ØÏ¢¤Å¤±¤é¤ì¤¿¥·¥ó¥Ü¥ë¤ÏÀäÂÐÃÍ¤òÊÝ»ý¤·¡¢ºÆÇÛÃÖ¤Ë±Æ¶Á¤µ¤ì¤Ê¤¤¡£
SHN_COMMON: ¤³¤Î¥»¥¯¥·¥ç¥ó¤Ë´ØÏ¢¤·¤ÆÄêµÁ¤µ¤ì¤¿¥·¥ó¥Ü¥ë¤Ï¡¢ Fortran ¤Î COMMON ¤ä C ¤ÎÌ¤³ä¤êÅö¤Æ external ÊÑ¿ô¤Î¤è¤¦¤Ê¡¢ ¶¦ÄÌ¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£
SHN_HIRESERVE: ¤³¤ÎÃÍ¤ÏÍ½Ìó¤µ¤ì¤¿¥¤¥ó¥Ç¥Ã¥¯¥¹¤ÎÈÏ°Ï¤Î¾å¸Â¤ò»ØÄê¤¹¤ë¡£ SHN_LORESERVE ¤È SHN_HIRESERVE ¤Ï´Þ¤Þ¤ì¤ë¡£ ¤³¤ÎÃÍ¤Ï¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤ò»²¾È¤·¤Ê¤¤¡£ ¤Ä¤Þ¤ê¡¢¥»¥¯¥·¥ç¥ó¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Ï Í½Ìó¤µ¤ì¤¿¥¤¥ó¥Ç¥Ã¥¯¥¹¤Î¥¨¥ó¥È¥ê¤ò ´Þ¤Þ¤Ê¤¤ ¡£

¼Â¹Ô²ÄÇ½¥Õ¥¡¥¤¥ë¤Þ¤¿¤Ï¶¦Í¥ª¥Ö¥¸¥§¥¯¥È¥Õ¥¡¥¤¥ë¤Î¥×¥í¥°¥é¥à¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Ï¡¢ ¥·¥¹¥Æ¥à¤Ë¤è¤ë¥×¥í¥°¥é¥à¼Â¹Ô½àÈ÷¤ËÉ¬Í×¤Ê¡¢ ¥»¥°¥á¥ó¥ÈÅù¤Î¾ðÊó¤òµ½Ò¤¹¤ë¹½Â¤ÂÎ¤ÎÇÛÎó¤Ç¤¢¤ë¡£ ¥ª¥Ö¥¸¥§¥¯¥È¥Õ¥¡¥¤¥ë¤Î ¥»¥°¥á¥ó¥È ¤Ë¤Ï 1 ¤Ä°Ê¾å¤Î ¥»¥¯¥·¥ç¥ó ¤¬´Þ¤Þ¤ì¤ë¡£ ¥×¥í¥°¥é¥à¥Ø¥Ã¥À¤Ï¼Â¹Ô²ÄÇ½¥Õ¥¡¥¤¥ë¤È¶¦Í¥ª¥Ö¥¸¥§¥¯¥È¥Õ¥¡¥¤¥ë¤Ç¤Î¤ß°ÕÌ£¤ò»ý¤Ä¡£ ¥Õ¥¡¥¤¥ë¤Ï¼«¿È¤Î¥×¥í¥°¥é¥à¥Ø¥Ã¥À¥µ¥¤¥º¤ò ELF ¥Ø¥Ã¥À¤Î e_phentsize ¥á¥ó¥Ð¤È e_phnum ¥á¥ó¥Ð¤Ç»ØÄê¤¹¤ë¡£ ELF ¥×¥í¥°¥é¥à¥Ø¥Ã¥À¤Ï Elf32_Phdr ·¿¤Þ¤¿¤Ï Elf64_Phdr ·¿¤Çµ½Ò¤µ¤ì¤ë (¤É¤Á¤é¤Ë¤Ê¤ë¤«¤Ï¥¢¡¼¥¥Æ¥¯¥Á¥ã°ÍÂ¸):


typedef struct {

        uint32_t        p_type;

        Elf32_Off       p_offset;

        Elf32_Addr      p_vaddr;

        Elf32_Addr      p_paddr;

        uint32_t        p_filesz;

        uint32_t        p_memsz;

        uint32_t        p_flags;

        uint32_t        p_align;

} Elf32_Phdr;


typedef struct {

        uint32_t        p_type;

        uint32_t        p_flags;

        Elf64_Off       p_offset;

        Elf64_Addr      p_vaddr;

        Elf64_Addr      p_paddr;

        uint64_t        p_filesz;

        uint64_t        p_memsz;

        uint64_t        p_align;

} Elf64_Phdr;

p_type

PT_NULL: ¤³¤ÎÇÛÎóÍ×ÁÇ¤Ï»ÈÍÑ¤µ¤ì¤Æ¤ª¤é¤º¡¢¤½¤ÎÂ¾¤Î¥á¥ó¥Ð¤ÎÃÍ¤ÏÌ¤ÄêµÁ¤Ç¤¢¤ë¡£ ¤³¤ì¤Ë¤è¤ê¡¢¤³¤Î¥×¥í¥°¥é¥à¥Ø¥Ã¥À¤Î¥¨¥ó¥È¥ê¤ÏÌµ»ë¤µ¤ì¤ë¡£
PT_LOAD: ¤³¤ÎÇÛÎóÍ×ÁÇ¤Ï p_filesz ¤È p_memsz ¤Çµ½Ò¤µ¤ì¤ë¥í¡¼¥É²ÄÇ½¥»¥°¥á¥ó¥È¤ò»ØÄê¤¹¤ë¡£ ¤³¤Î¥Õ¥¡¥¤¥ë¤«¤é¤Î¥Ð¥¤¥È¥Ç¡¼¥¿¤¬¡¢¤³¤Î¥á¥â¥ê¥»¥°¥á¥ó¥È¤ÎÀèÆ¬¤«¤é¥Þ¥Ã¥×¤µ¤ì¤ë¡£ ¥»¥°¥á¥ó¥È¤Î¥á¥â¥ê¥µ¥¤¥º (p_memsz ) ¤¬¥Õ¥¡¥¤¥ë¥µ¥¤¥º (p_filesz ) ¤è¤êÂç¤¤¤¾ì¹ç¡¢ ¡ÖÍ¾¤Ã¤¿¡×¥Ð¥¤¥È¤ÏÃÍ 0 ¤È¤Ê¤ê¡¢ ¤½¤Î¥»¥°¥á¥ó¥È½é´ü²½¥Ç¡¼¥¿¤Î¸å¤í¤ËÃÖ¤«¤ì¤ë¤ÈÄê¤á¤é¤ì¤Æ¤¤¤ë¡£ ¥Õ¥¡¥¤¥ë¥µ¥¤¥º¤Ï¥á¥â¥ê¥µ¥¤¥º¤è¤êÂç¤¤¯¤Æ¤Ï¤¤¤±¤Ê¤¤¡£ ¥×¥í¥°¥é¥à¥Ø¥Ã¥À¥Æ¡¼¥Ö¥ë¤Î¥í¡¼¥É²ÄÇ½¥»¥°¥á¥ó¥È¥¨¥ó¥È¥ê¤Ï¡¢ p_vaddr ¥á¥ó¥Ð¤Î¾º½ç¤Ë¥½¡¼¥È¤µ¤ì¤Æ½Ð¸½¤¹¤ë¡£
PT_DYNAMIC: ¤³¤ÎÇÛÎóÍ×ÁÇ¤ÏÆ°Åª¥ê¥ó¥¯¾ðÊó¤ò»ØÄê¤¹¤ë¡£
PT_INTERP: ¤³¤ÎÇÛÎóÍ×ÁÇ¤Ï¡¢¥¤¥ó¥¿¥×¥ê¥¿¤È¤·¤Æµ¯Æ°¤µ¤ì¤ë¥Ñ¥¹Ì¾ (NULL Ê¸»ú½ªÃ¼) ¤Î°ÌÃÖ¤È¥µ¥¤¥º¤ò»ØÄê¤¹¤ë¡£ ¤³¤Î¥»¥°¥á¥ó¥È·¿¤Ï (¶¦Í¥ª¥Ö¥¸¥§¥¯¥È¤Ë¤â¤¢¤ë¤«¤âÃÎ¤ì¤Ê¤¤¤¬) ¼Â¹Ô²ÄÇ½¥Õ¥¡¥¤¥ë¤Ç¤Î¤ß°ÕÌ£¤ò»ý¤Ä¡£ ¤¿¤À¤·¡¢¤³¤Î¥»¥°¥á¥ó¥È·¿¤Ï 1 ¤Ä¤Î¥Õ¥¡¥¤¥ë¤Ë 2 ²ó°Ê¾å½Ð¸½¤·¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£ ¤â¤·Â¸ºß¤¹¤ë¾ì¹ç¡¢¤³¤Î¥»¥°¥á¥ó¥È·¿¤Ï Á´¤Æ¤Î¥í¡¼¥É²ÄÇ½¥»¥°¥á¥ó¥È¥¨¥ó¥È¥ê¤è¤êÁ°¤Ë¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
PT_NOTE: ¤³¤ÎÇÛÎóÍ×ÁÇ¤ÏÊäÂ¾ðÊó (auxiliary information) ¤Î°ÌÃÖ¤È¥µ¥¤¥º¤ò»ØÄê¤¹¤ë¡£
PT_SHLIB: ¤³¤Î¥»¥°¥á¥ó¥È·¿¤ÏÍ½Ìó¤µ¤ì¤Æ¤¤¤ë¤¬¡¢°ÕÌ£¤Ï»ØÄê¤µ¤ì¤Æ¤¤¤Ê¤¤¡£ ¤³¤Î·¿¤ÎÇÛÎóÍ×ÁÇ¤òÊÝ»ý¤¹¤ë¥×¥í¥°¥é¥à¤Ï ABI ¤Ë½àµò¤·¤Ê¤¤¡£
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p_memsz

p_flags

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typedef struct {

        uint32_t        sh_name;

        uint32_t        sh_type;

        uint32_t        sh_flags;

        Elf32_Addr      sh_addr;

        Elf32_Off       sh_offset;

        uint32_t        sh_size;

        uint32_t        sh_link;

        uint32_t        sh_info;

        uint32_t        sh_addralign;

        uint32_t        sh_entsize;

} Elf32_Shdr;


typedef struct {

        uint32_t        sh_name;

        uint32_t        sh_type;

        uint64_t        sh_flags;

        Elf64_Addr      sh_addr;

        Elf64_Off       sh_offset;

        uint64_t        sh_size;

        uint32_t        sh_link;

        uint32_t        sh_info;

        uint64_t        sh_addralign;

        uint64_t        sh_entsize;

} Elf64_Shdr;

sh_name

sh_type

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sh_flags

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sh_addr

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sh_size

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sh_link

sh_info

sh_addralign

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sh_entsize

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typedef struct {

        uint32_t        st_name;

        Elf32_Addr      st_value;

        uint32_t        st_size;

        unsigned char   st_info;

        unsigned char   st_other;

        uint16_t        st_shndx;

} Elf32_Sym;


typedef struct {

        uint32_t        st_name;

        unsigned char   st_info;

        unsigned char   st_other;

        uint16_t        st_shndx;

        Elf64_Addr      st_value;

        uint64_t        st_size;

} Elf64_Sym;

st_name

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typedef struct {

        Elf32_Addr     r_offset;

        uint32_t       r_info;

} Elf32_Rel;


typedef struct {

        Elf64_Addr     r_offset;

        uint64_t       r_info;

} Elf64_Rel;

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typedef struct {

        Elf32_Addr      r_offset;

        uint32_t        r_info;

        int32_t         r_addend;

} Elf32_Rela;


typedef struct {

        Elf64_Addr      r_offset;

        uint64_t        r_info;

        int64_t         r_addend;

} Elf64_Rela;

r_offset: ¤³¤Î¥á¥ó¥Ð¤ÏºÆÇÛÃÖÆ°ºî¤¬Å¬ÍÑ¤µ¤ì¤ë°ÌÃÖ¤òÍ¿¤¨¤ë¡£ ºÆÇÛÃÖ²ÄÇ½¥Õ¥¡¥¤¥ë¤Î¾ì¹ç¡¢¤³¤ÎÃÍ¤Ï¥»¥¯¥·¥ç¥ó¤ÎÀèÆ¬¤«¤é ºÆÇÛÃÖ¤Ç±Æ¶Á¤ò¼õ¤±¤ë³ÊÇ¼Ã±°Ì (storage unit) ¤Þ¤Ç¤Î¥Ð¥¤¥È¥ª¥Õ¥»¥Ã¥È¤Ç¤¢¤ë¡£ ¼Â¹Ô²ÄÇ½¥Õ¥¡¥¤¥ë¤Þ¤¿¤Ï¶¦Í¥ª¥Ö¥¸¥§¥¯¥È¤Î¾ì¹ç¡¢ ¤³¤ÎÃÍ¤ÏºÆÇÛÃÖ¤Ç±Æ¶Á¤ò¼õ¤±¤ë³ÊÇ¼Ã±°Ì¤Î²¾ÁÛ¥¢¥É¥ì¥¹¤Ç¤¢¤ë¡£
r_info: ¤³¤Î¥á¥ó¥Ð¤Ï¡¢ºÆÇÛÃÖ¤¬¹Ô¤ï¤ì¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¥·¥ó¥Ü¥ë¥Æ¡¼¥Ö¥ë¥¤¥ó¥Ç¥Ã¥¯¥¹¤È¡¢ Å¬ÍÑ¤µ¤ì¤ëºÆÇÛÃÖ¤Î¥¿¥¤¥×¤ÎÎ¾Êý¤òÍ¿¤¨¤ë¡£ ºÆÇÛÃÖ¥¿¥¤¥×¤Ï¥×¥í¥»¥Ã¥µËè¤Ë°Û¤Ê¤ë¡£ ¥Æ¥¥¹¥È¤¬ºÆÇÛÃÖ¥¨¥ó¥È¥ê¤ÎºÆÇÛÃÖ¥¿¥¤¥× ¤Þ¤¿¤Ï¥·¥ó¥Ü¥ë¥Æ¡¼¥Ö¥ë¥¤¥ó¥Ç¥Ã¥¯¥¹¤ò»²¾È¤·¤Æ¤¤¤ë¾ì¹ç¡¢ ¤½¤ì¤¾¤ì¥¨¥ó¥È¥ê¤Î r_info ¥á¥ó¥Ð¤ËÂÐ¤·¤Æ¡¢¤½¤ì¤¾¤ì ELF_[32|64]_R_TYPE ¤È ELF[32|64]_R_SYM ¤òÅ¬ÍÑ¤·¤¿·ë²Ì¤ò°ÕÌ£¤¹¤ë¡£
r_addend: ¤³¤Î¥á¥ó¥Ð¤ÏÄê¿ô¤Î²Ã¿ô¤ò»ØÄê¤¹¤ë¡£ ¤³¤Î²Ã¿ô¤ÏºÆÇÛÃÖ²ÄÇ½¥Õ¥£¡¼¥ë¥É¤Ë³ÊÇ¼¤µ¤ì¤ëÃÍ¤ò·×»»¤¹¤ë¤¿¤á¤Ë»È¤ï¤ì¤ë¡£

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typedef struct {

        Elf32_Sword     d_tag;

        union {

           Elf32_Word   d_val;

           Elf32_Addr   d_ptr;

        } d_un;

} Elf32_Dyn;

extern Elf32_Dyn _DYNAMIC[];


typedef struct {

        Elf64_Sxword    d_tag;

        union {

           Elf64_Xword  d_val;

           Elf64_Addr   d_ptr;

        } d_un;

} Elf64_Dyn;

extern Elf64_Dyn _DYNAMIC[];

d_tag

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DT_NULL: Æ°Åª¥»¥¯¥·¥ç¥ó¤Î½ª¤ê¤Î¥Þ¡¼¥¯
DT_NEEDED: É¬Í×¤Ê¥é¥¤¥Ö¥é¥ê¤ÎÌ¾Á°¤Ø¤ÎÊ¸»úÎó¥Æ¡¼¥Ö¥ë¥ª¥Õ¥»¥Ã¥È
DT_PLTRELSZ: PLT ºÆÇÛÃÖ (reloc) ¥Æ¡¼¥Ö¥ë¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì)
DT_PLTGOT: PLT ¤È GOT (¤Þ¤¿¤Ï²¿¤ì¤«°ìÊý) ¤Î¥¢¥É¥ì¥¹
DT_HASH: ¥·¥ó¥Ü¥ë¥Ï¥Ã¥·¥å¥Æ¡¼¥Ö¥ë¤Î¥¢¥É¥ì¥¹
DT_STRTAB: Ê¸»úÎó¥Æ¡¼¥Ö¥ë¤Î¥¢¥É¥ì¥¹
DT_SYMTAB: ¥·¥ó¥Ü¥ë¥Æ¡¼¥Ö¥ë¤Î¥¢¥É¥ì¥¹
DT_RELA: Rela ºÆÇÛÃÖ¥Æ¡¼¥Ö¥ë¤Î¥¢¥É¥ì¥¹
DT_RELASZ: Rela ¥Æ¡¼¥Ö¥ë¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì)
DT_RELAENT: Rela ¥Æ¡¼¥Ö¥ë¥¨¥ó¥È¥ê¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì)
DT_STRSZ: Ê¸»úÎó¥Æ¡¼¥Ö¥ë¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì)
DT_SYMENT: ¥·¥ó¥Ü¥ë¥Æ¡¼¥Ö¥ë¥¨¥ó¥È¥ê¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì)
DT_INIT: ½é´ü²½´Ø¿ô¤Î¥¢¥É¥ì¥¹
DT_FINI: ½ªÎ»´Ø¿ô¤Î¥¢¥É¥ì¥¹
DT_SONAME: ¶¦Í¥ª¥Ö¥¸¥§¥¯¥È¤ÎÌ¾Á°¤Ø¤ÎÊ¸»úÎó¥Æ¡¼¥Ö¥ë¥ª¥Õ¥»¥Ã¥È
DT_SYMBOLIC: ¥ê¥ó¥«¤¬¥·¥ó¥Ü¥ë¤Î¼Â¹Ô²ÄÇ½¥Õ¥¡¥¤¥ë¤è¤êÁ°¤Ë ¤³¤Î¶¦Í¥ª¥Ö¥¸¥§¥¯¥È¤ò¸¡º÷¤·¤¿¾ì¹ç¤Ï¡¢·Ù¹ð¤ò½Ð¤¹¡£
DT_REL: Rel ºÆÇÛÃÖ¥Æ¡¼¥Ö¥ë¤Î¥¢¥É¥ì¥¹
DT_RELSZ: Rel ¥Æ¡¼¥Ö¥ë¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì)
DT_RELENT: Rel ¥Æ¡¼¥Ö¥ë¥¨¥ó¥È¥ê¤Î¥µ¥¤¥º (¥Ð¥¤¥ÈÃ±°Ì)
DT_PLTREL: PLT ¤¬»²¾È¤¹¤ëºÆÇÛÃÖ¥Æ¡¼¥Ö¥ë¤Î¥¿¥¤¥× (Rela ¤Þ¤¿¤Ï Rel)
DT_DEBUG: ¥Ç¥Ð¥Ã¥°¤Î¤¿¤á¤Ë»ÈÍÑ¤µ¤ì¤Æ¤¤¤ë¡£ÆâÍÆ¤ÏÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
DT_TEXTREL: ¤³¤ì¤¬»ØÄê¤µ¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¡¢ ½ñ¤¹þ¤ßÉÔ²Ä¤Î¥»¥°¥á¥ó¥È¤Ë¤ÏºÆÇÛÃÖ¤ÏÅ¬ÍÑ¤µ¤ì¤Ê¤¤¡£
DT_JMPREL: PLT ÀìÍÑ¤ÎºÆÇÛÃÖ¥¨¥ó¥È¥ê¤Î¥¢¥É¥ì¥¹
DT_RUNPATH: ¥é¥¤¥Ö¥é¥ê¸¡º÷¥Ñ¥¹¤Ø¤ÎÊ¸»úÎó¥Æ¡¼¥Ö¥ë¥ª¥Õ¥»¥Ã¥È
DT_LOPROC: ¥×¥í¥»¥Ã¥µ¸ÇÍ¤Î°ÕÌ£¤Î³«»Ï
DT_HIPROC: ¥×¥í¥»¥Ã¥µ¸ÇÍ¤Î°ÕÌ£¤Î½ªÎ»

d_val

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d_ptr

_DYNAMIC

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ÍúÎò

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Ãø¼Ô

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´ØÏ¢¹àÌÜ

as(1), gdb(1), ld(1), objdump(1), execve(2), core(5)

Hewlett-Packard Elf-64 Object File Format

Santa Cruz Operation System V Application Binary Interface

Unix System Laboratories Object Files "Executable and Linking Format (ELF)"

Linux Certif

Toute la documentation sur la certification Linux LPI

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Toute la documentation sur la certification Linux LPI

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