aout-tic30.c

来自「基于4个mips核的noc设计」· C语言 代码 · 共 1,065 行 · 第 1/3 页

   offsets in the output file.  */

static boolean
MY_bfd_final_link (abfd, info)
     bfd *abfd;
     struct bfd_link_info *info;
{
  struct internal_exec *execp = exec_hdr (abfd);
  file_ptr pos;
  bfd_vma vma = 0;
  int pad;

  /* Set the executable header size to 0, as we don't want one for an
     output.  */
  adata (abfd).exec_bytes_size = 0;
  pos = adata (abfd).exec_bytes_size;
  /* Text.  */
  vma = info->create_object_symbols_section->vma;
  pos += vma;
  obj_textsec (abfd)->filepos = pos;
  obj_textsec (abfd)->vma = vma;
  obj_textsec (abfd)->user_set_vma = 1;
  pos += obj_textsec (abfd)->_raw_size;
  vma += obj_textsec (abfd)->_raw_size;

  /* Data.  */
  if (abfd->flags & D_PAGED)
    {
      if (info->create_object_symbols_section->next->vma > 0)
	obj_datasec (abfd)->vma = info->create_object_symbols_section->next->vma;
      else
	obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
    }
  else
    {
      obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4);
    }
  if (obj_datasec (abfd)->vma < vma)
    {
      obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4);
    }
  obj_datasec (abfd)->user_set_vma = 1;
  vma = obj_datasec (abfd)->vma;
  obj_datasec (abfd)->filepos = vma + adata (abfd).exec_bytes_size;
  execp->a_text = vma - obj_textsec (abfd)->vma;
  obj_textsec (abfd)->_raw_size = execp->a_text;

  /* Since BSS follows data immediately, see if it needs alignment.  */
  vma += obj_datasec (abfd)->_raw_size;
  pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
  obj_datasec (abfd)->_raw_size += pad;
  pos += obj_datasec (abfd)->_raw_size;
  execp->a_data = obj_datasec (abfd)->_raw_size;

  /* BSS.  */
  obj_bsssec (abfd)->vma = vma;
  obj_bsssec (abfd)->user_set_vma = 1;

  /* We are fully resized, so don't readjust in final_link.  */
  adata (abfd).magic = z_magic;

  return NAME (aout, final_link) (abfd, info, MY_final_link_callback);
}

#endif

enum machine_type
tic30_aout_machine_type (arch, machine, unknown)
     enum bfd_architecture arch;
     unsigned long machine ATTRIBUTE_UNUSED;
     boolean *unknown;
{
  enum machine_type arch_flags;

  arch_flags = M_UNKNOWN;
  *unknown = true;

  switch (arch)
    {
    case bfd_arch_tic30:
      *unknown = false;
      break;
    default:
      arch_flags = M_UNKNOWN;
    }
  if (arch_flags != M_UNKNOWN)
    *unknown = false;
  return arch_flags;
}

boolean
tic30_aout_set_arch_mach (abfd, arch, machine)
     bfd *abfd;
     enum bfd_architecture arch;
     unsigned long machine;
{
  if (!bfd_default_set_arch_mach (abfd, arch, machine))
    return false;
  if (arch != bfd_arch_unknown)
    {
      boolean unknown;
      tic30_aout_machine_type (arch, machine, &unknown);
      if (unknown)
	return false;
    }
  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
  return (*aout_backend_info (abfd)->set_sizes) (abfd);
}

/* We assume BFD generic archive files.  */
#ifndef	MY_openr_next_archived_file
#define	MY_openr_next_archived_file	bfd_generic_openr_next_archived_file
#endif
#ifndef MY_get_elt_at_index
#define MY_get_elt_at_index		_bfd_generic_get_elt_at_index
#endif
#ifndef	MY_generic_stat_arch_elt
#define	MY_generic_stat_arch_elt	bfd_generic_stat_arch_elt
#endif
#ifndef	MY_slurp_armap
#define	MY_slurp_armap			bfd_slurp_bsd_armap
#endif
#ifndef	MY_slurp_extended_name_table
#define	MY_slurp_extended_name_table	_bfd_slurp_extended_name_table
#endif
#ifndef MY_construct_extended_name_table
#define MY_construct_extended_name_table \
  _bfd_archive_bsd_construct_extended_name_table
#endif
#ifndef	MY_write_armap
#define	MY_write_armap		bsd_write_armap
#endif
#ifndef MY_read_ar_hdr
#define MY_read_ar_hdr		_bfd_generic_read_ar_hdr
#endif
#ifndef	MY_truncate_arname
#define	MY_truncate_arname		bfd_bsd_truncate_arname
#endif
#ifndef MY_update_armap_timestamp
#define MY_update_armap_timestamp _bfd_archive_bsd_update_armap_timestamp
#endif

/* No core file defined here -- configure in trad-core.c separately.  */
#ifndef	MY_core_file_failing_command
#define	MY_core_file_failing_command _bfd_nocore_core_file_failing_command
#endif
#ifndef	MY_core_file_failing_signal
#define	MY_core_file_failing_signal	_bfd_nocore_core_file_failing_signal
#endif
#ifndef	MY_core_file_matches_executable_p
#define	MY_core_file_matches_executable_p	\
				_bfd_nocore_core_file_matches_executable_p
#endif
#ifndef	MY_core_file_p
#define	MY_core_file_p		_bfd_dummy_target
#endif

#ifndef MY_bfd_debug_info_start
#define MY_bfd_debug_info_start		bfd_void
#endif
#ifndef MY_bfd_debug_info_end
#define MY_bfd_debug_info_end		bfd_void
#endif
#ifndef MY_bfd_debug_info_accumulate
#define MY_bfd_debug_info_accumulate	\
			(void (*) PARAMS ((bfd*, struct sec *))) bfd_void
#endif

#ifndef MY_core_file_failing_command
#define MY_core_file_failing_command NAME(aout,core_file_failing_command)
#endif
#ifndef MY_core_file_failing_signal
#define MY_core_file_failing_signal NAME(aout,core_file_failing_signal)
#endif
#ifndef MY_core_file_matches_executable_p
#define MY_core_file_matches_executable_p NAME(aout,core_file_matches_executable_p)
#endif
#ifndef MY_set_section_contents
#define MY_set_section_contents NAME(aout,set_section_contents)
#endif
#ifndef MY_get_section_contents
#define MY_get_section_contents aout_32_get_section_contents
#endif
#ifndef MY_get_section_contents_in_window
#define MY_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
#endif
#ifndef MY_new_section_hook
#define MY_new_section_hook NAME(aout,new_section_hook)
#endif
#ifndef MY_get_symtab_upper_bound
#define MY_get_symtab_upper_bound NAME(aout,get_symtab_upper_bound)
#endif
#ifndef MY_get_symtab
#define MY_get_symtab NAME(aout,get_symtab)
#endif
#ifndef MY_get_reloc_upper_bound
#define MY_get_reloc_upper_bound NAME(aout,get_reloc_upper_bound)
#endif
#ifndef MY_canonicalize_reloc
#define MY_canonicalize_reloc NAME(aout,canonicalize_reloc)
#endif
#ifndef MY_make_empty_symbol
#define MY_make_empty_symbol NAME(aout,make_empty_symbol)
#endif
#ifndef MY_print_symbol
#define MY_print_symbol NAME(aout,print_symbol)
#endif
#ifndef MY_get_symbol_info
#define MY_get_symbol_info NAME(aout,get_symbol_info)
#endif
#ifndef MY_get_lineno
#define MY_get_lineno NAME(aout,get_lineno)
#endif
#ifndef MY_set_arch_mach
#define MY_set_arch_mach tic30_aout_set_arch_mach
#endif
#ifndef MY_find_nearest_line
#define MY_find_nearest_line NAME(aout,find_nearest_line)
#endif
#ifndef MY_sizeof_headers
#define MY_sizeof_headers NAME(aout,sizeof_headers)
#endif
#ifndef MY_bfd_get_relocated_section_contents
#define MY_bfd_get_relocated_section_contents \
			bfd_generic_get_relocated_section_contents
#endif
#ifndef MY_bfd_relax_section
#define MY_bfd_relax_section bfd_generic_relax_section
#endif
#ifndef MY_bfd_gc_sections
#define MY_bfd_gc_sections bfd_generic_gc_sections
#endif
#ifndef MY_bfd_reloc_type_lookup
#define MY_bfd_reloc_type_lookup tic30_aout_reloc_type_lookup
#endif
#ifndef MY_bfd_make_debug_symbol
#define MY_bfd_make_debug_symbol 0
#endif
#ifndef MY_read_minisymbols
#define MY_read_minisymbols NAME(aout,read_minisymbols)
#endif
#ifndef MY_minisymbol_to_symbol
#define MY_minisymbol_to_symbol NAME(aout,minisymbol_to_symbol)
#endif
#ifndef MY_bfd_link_hash_table_create
#define MY_bfd_link_hash_table_create NAME(aout,link_hash_table_create)
#endif
#ifndef MY_bfd_link_add_symbols
#define MY_bfd_link_add_symbols NAME(aout,link_add_symbols)
#endif
#ifndef MY_bfd_link_split_section
#define MY_bfd_link_split_section  _bfd_generic_link_split_section
#endif

#ifndef MY_bfd_copy_private_bfd_data
#define MY_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
#endif

#ifndef MY_bfd_merge_private_bfd_data
#define MY_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
#endif

#ifndef MY_bfd_copy_private_symbol_data
#define MY_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
#endif

#ifndef MY_bfd_print_private_bfd_data
#define MY_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
#endif

#ifndef MY_bfd_set_private_flags
#define MY_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
#endif

#ifndef MY_bfd_is_local_label_name
#define MY_bfd_is_local_label_name bfd_generic_is_local_label_name
#endif

#ifndef MY_bfd_free_cached_info
#define MY_bfd_free_cached_info NAME(aout,bfd_free_cached_info)
#endif

#ifndef MY_close_and_cleanup
#define MY_close_and_cleanup MY_bfd_free_cached_info
#endif

#ifndef MY_get_dynamic_symtab_upper_bound
#define MY_get_dynamic_symtab_upper_bound \
  _bfd_nodynamic_get_dynamic_symtab_upper_bound
#endif
#ifndef MY_canonicalize_dynamic_symtab
#define MY_canonicalize_dynamic_symtab \
  _bfd_nodynamic_canonicalize_dynamic_symtab
#endif
#ifndef MY_get_dynamic_reloc_upper_bound
#define MY_get_dynamic_reloc_upper_bound \
  _bfd_nodynamic_get_dynamic_reloc_upper_bound
#endif
#ifndef MY_canonicalize_dynamic_reloc
#define MY_canonicalize_dynamic_reloc \
  _bfd_nodynamic_canonicalize_dynamic_reloc
#endif

/* Aout symbols normally have leading underscores */
#ifndef MY_symbol_leading_char
#define MY_symbol_leading_char '_'
#endif

/* Aout archives normally use spaces for padding */
#ifndef AR_PAD_CHAR
#define AR_PAD_CHAR ' '
#endif

#ifndef MY_BFD_TARGET
const bfd_target tic30_aout_vec =
{
  TARGETNAME,			/* name */
  bfd_target_aout_flavour,
  BFD_ENDIAN_BIG,		/* target byte order (big) */
  BFD_ENDIAN_BIG,		/* target headers byte order (big) */
  (HAS_RELOC |			/* object flags */
   HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC),	/* section flags */
  MY_symbol_leading_char,
  AR_PAD_CHAR,			/* ar_pad_char */
  15,				/* ar_max_namelen */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* data */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* hdrs */
  {_bfd_dummy_target, MY_object_p,	/* bfd_check_format */
   bfd_generic_archive_p, MY_core_file_p},
  {bfd_false, MY_mkobject,	/* bfd_set_format */
   _bfd_generic_mkarchive, bfd_false},
  {bfd_false, MY_write_object_contents,		/* bfd_write_contents */
   _bfd_write_archive_contents, bfd_false},

  BFD_JUMP_TABLE_GENERIC (MY),
  BFD_JUMP_TABLE_COPY (MY),
  BFD_JUMP_TABLE_CORE (MY),
  BFD_JUMP_TABLE_ARCHIVE (MY),
  BFD_JUMP_TABLE_SYMBOLS (MY),
  BFD_JUMP_TABLE_RELOCS (MY),
  BFD_JUMP_TABLE_WRITE (MY),
  BFD_JUMP_TABLE_LINK (MY),
  BFD_JUMP_TABLE_DYNAMIC (MY),

  NULL,

  (PTR) MY_backend_data
};
#endif /* MY_BFD_TARGET */