elf64-target.h

来自「基于4个mips核的noc设计」· C头文件 代码 · 共 619 行 · 第 1/2 页

#endif
#ifndef elf_backend_output_arch_syms
#define elf_backend_output_arch_syms		NULL
#endif
#ifndef elf_backend_copy_indirect_symbol
#define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
#endif
#ifndef elf_backend_hide_symbol
#define elf_backend_hide_symbol		_bfd_elf_link_hash_hide_symbol
#endif

/* Previously, backends could only use SHT_REL or SHT_RELA relocation
   sections, but not both.  They defined USE_REL to indicate SHT_REL
   sections, and left it undefined to indicated SHT_RELA sections.
   For backwards compatibility, we still support this usage.  */
#ifndef USE_REL
#define USE_REL 0
#else
#undef USE_REL
#define USE_REL 1
#endif

/* Use these in new code.  */
#ifndef elf_backend_may_use_rel_p
#define elf_backend_may_use_rel_p USE_REL
#endif
#ifndef elf_backend_may_use_rela_p
#define elf_backend_may_use_rela_p !USE_REL
#endif
#ifndef elf_backend_default_use_rela_p
#define elf_backend_default_use_rela_p !USE_REL
#endif

#ifndef ELF_MACHINE_ALT1
#define ELF_MACHINE_ALT1 0
#endif

#ifndef ELF_MACHINE_ALT2
#define ELF_MACHINE_ALT2 0
#endif

#ifndef elf_backend_size_info
#define elf_backend_size_info _bfd_elf64_size_info
#endif

#ifndef elf_backend_sign_extend_vma
#define elf_backend_sign_extend_vma 0
#endif

extern const struct elf_size_info _bfd_elf64_size_info;

#ifndef INCLUDED_TARGET_FILE
static CONST struct elf_backend_data elf64_bed =
{
  ELF_ARCH,			/* arch */
  ELF_MACHINE_CODE,		/* elf_machine_code */
  ELF_MAXPAGESIZE,		/* maxpagesize */
  elf_info_to_howto,
  elf_info_to_howto_rel,
  elf_backend_sym_is_global,
  elf_backend_object_p,
  elf_backend_symbol_processing,
  elf_backend_symbol_table_processing,
  elf_backend_get_symbol_type,
  elf_backend_section_processing,
  elf_backend_section_from_shdr,
  elf_backend_section_flags,
  elf_backend_section_from_phdr,
  elf_backend_fake_sections,
  elf_backend_section_from_bfd_section,
  elf_backend_add_symbol_hook,
  elf_backend_link_output_symbol_hook,
  elf_backend_create_dynamic_sections,
  elf_backend_check_relocs,
  elf_backend_adjust_dynamic_symbol,
  elf_backend_always_size_sections,
  elf_backend_size_dynamic_sections,
  elf_backend_relocate_section,
  elf_backend_finish_dynamic_symbol,
  elf_backend_finish_dynamic_sections,
  elf_backend_begin_write_processing,
  elf_backend_final_write_processing,
  elf_backend_additional_program_headers,
  elf_backend_modify_segment_map,
  elf_backend_gc_mark_hook,
  elf_backend_gc_sweep_hook,
  elf_backend_post_process_headers,
  elf_backend_print_symbol_all,
  elf_backend_output_arch_syms,
  elf_backend_copy_indirect_symbol,
  elf_backend_hide_symbol,
  elf_backend_ecoff_debug_swap,
  ELF_MACHINE_ALT1,
  ELF_MACHINE_ALT2,
  &elf_backend_size_info,
  elf_backend_got_symbol_offset,
  elf_backend_got_header_size,
  elf_backend_plt_header_size,
  elf_backend_collect,
  elf_backend_type_change_ok,
  elf_backend_may_use_rel_p,
  elf_backend_may_use_rela_p,
  elf_backend_default_use_rela_p,
  elf_backend_sign_extend_vma,
  elf_backend_want_got_plt,
  elf_backend_plt_readonly,
  elf_backend_want_plt_sym,
  elf_backend_plt_not_loaded,
  elf_backend_plt_alignment,
  elf_backend_can_gc_sections,
  elf_backend_want_dynbss
};
#endif

/* Forward declaration for use when initialising alternative_target field.  */
#ifdef TARGET_LITTLE_SYM
extern const bfd_target TARGET_LITTLE_SYM;
#endif

#ifdef TARGET_BIG_SYM
const bfd_target TARGET_BIG_SYM =
{
  /* name: identify kind of target */
  TARGET_BIG_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder: data is big endian */
  BFD_ENDIAN_BIG,

  /* header_byteorder: header is also big endian */
  BFD_ENDIAN_BIG,

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT | D_PAGED),

  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
  elf_symbol_leading_char,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  14,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf64_object_p,		/* assembler/linker output (object file) */
    bfd_elf64_archive_p,	/* an archive */
    bfd_elf64_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf64_mkobject,
    bfd_elf64_mkarchive,
    bfd_elf64_mkcorefile
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf64_write_object_contents,
    bfd_elf64_write_archive_contents,
    bfd_elf64_write_corefile_contents,
  },

      BFD_JUMP_TABLE_GENERIC (bfd_elf64),
      BFD_JUMP_TABLE_COPY (bfd_elf64),
      BFD_JUMP_TABLE_CORE (bfd_elf64),
#ifdef bfd_elf64_archive_functions
      BFD_JUMP_TABLE_ARCHIVE (bfd_elf64_archive),
#else
      BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
#endif
      BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
      BFD_JUMP_TABLE_RELOCS (bfd_elf64),
      BFD_JUMP_TABLE_WRITE (bfd_elf64),
      BFD_JUMP_TABLE_LINK (bfd_elf64),
      BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),

  /* Alternative endian target.  */
#ifdef TARGET_LITTLE_SYM
  & TARGET_LITTLE_SYM,
#else
  NULL,
#endif

  /* backend_data: */
  (PTR) &elf64_bed
};
#endif

#ifdef TARGET_LITTLE_SYM
const bfd_target TARGET_LITTLE_SYM =
{
  /* name: identify kind of target */
  TARGET_LITTLE_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder: data is little endian */
  BFD_ENDIAN_LITTLE,

  /* header_byteorder: header is also little endian */
  BFD_ENDIAN_LITTLE,

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT | D_PAGED),

  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
  elf_symbol_leading_char,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  14,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf64_object_p,		/* assembler/linker output (object file) */
    bfd_elf64_archive_p,	/* an archive */
    bfd_elf64_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf64_mkobject,
    bfd_elf64_mkarchive,
    bfd_elf64_mkcorefile
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf64_write_object_contents,
    bfd_elf64_write_archive_contents,
    bfd_elf64_write_corefile_contents,
  },

      BFD_JUMP_TABLE_GENERIC (bfd_elf64),
      BFD_JUMP_TABLE_COPY (bfd_elf64),
      BFD_JUMP_TABLE_CORE (bfd_elf64),
#ifdef bfd_elf64_archive_functions
      BFD_JUMP_TABLE_ARCHIVE (bfd_elf64_archive),
#else
      BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
#endif
      BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
      BFD_JUMP_TABLE_RELOCS (bfd_elf64),
      BFD_JUMP_TABLE_WRITE (bfd_elf64),
      BFD_JUMP_TABLE_LINK (bfd_elf64),
      BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),

  /* Alternative endian target.  */
#ifdef TARGET_BIG_SYM
  & TARGET_BIG_SYM,
#else
  NULL,
#endif

  /* backend_data: */
  (PTR) &elf64_bed
};
#endif