bfd/mach-o-target.c - binutils-gdb - Git at Google

 /* Mach-O support for BFD.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.

    This file is part of BFD, the Binary File Descriptor library.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
    MA 02110-1301, USA.  */

 /* Define generic entry points here so that we don't need to duplicate the
    defines in every target.  But define once as this file may be included
    several times.  */
 #ifndef MACH_O_TARGET_COMMON_DEFINED
 #define MACH_O_TARGET_COMMON_DEFINED

 #define bfd_mach_o_bfd_free_cached_info		      _bfd_generic_bfd_free_cached_info
 #define bfd_mach_o_get_section_contents_in_window     _bfd_generic_get_section_contents_in_window
 #define bfd_mach_o_bfd_print_private_bfd_data	      bfd_mach_o_bfd_print_private_bfd_data
 #define bfd_mach_o_bfd_is_target_special_symbol	      _bfd_bool_bfd_asymbol_false
 #define bfd_mach_o_bfd_is_local_label_name	      bfd_generic_is_local_label_name
 #define bfd_mach_o_get_lineno			      _bfd_nosymbols_get_lineno
 #define bfd_mach_o_find_inliner_info		      _bfd_nosymbols_find_inliner_info
 #define bfd_mach_o_get_symbol_version_string	      _bfd_nosymbols_get_symbol_version_string
 #define bfd_mach_o_bfd_make_debug_symbol	      _bfd_nosymbols_bfd_make_debug_symbol
 #define bfd_mach_o_read_minisymbols		      _bfd_generic_read_minisymbols
 #define bfd_mach_o_minisymbol_to_symbol		      _bfd_generic_minisymbol_to_symbol
 #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
 #define bfd_mach_o_bfd_relax_section		      bfd_generic_relax_section
 #define bfd_mach_o_bfd_link_hash_table_create	      _bfd_generic_link_hash_table_create
 #define bfd_mach_o_bfd_link_add_symbols		      _bfd_generic_link_add_symbols
 #define bfd_mach_o_bfd_link_just_syms		      _bfd_generic_link_just_syms
 #define bfd_mach_o_bfd_copy_link_hash_symbol_type \
   _bfd_generic_copy_link_hash_symbol_type
 #define bfd_mach_o_bfd_final_link		      _bfd_generic_final_link
 #define bfd_mach_o_bfd_link_split_section	      _bfd_generic_link_split_section
 #define bfd_mach_o_bfd_link_check_relocs	      _bfd_generic_link_check_relocs
 #define bfd_mach_o_bfd_merge_private_bfd_data	      _bfd_generic_bfd_merge_private_bfd_data
 #define bfd_mach_o_bfd_set_private_flags	      bfd_mach_o_bfd_set_private_flags
 #define bfd_mach_o_get_section_contents		      _bfd_generic_get_section_contents
 #define bfd_mach_o_bfd_gc_sections		      bfd_generic_gc_sections
 #define bfd_mach_o_bfd_lookup_section_flags	      bfd_generic_lookup_section_flags
 #define bfd_mach_o_bfd_merge_sections		      bfd_generic_merge_sections
 #define bfd_mach_o_bfd_is_group_section		      bfd_generic_is_group_section
 #define bfd_mach_o_bfd_group_name		      bfd_generic_group_name
 #define bfd_mach_o_bfd_discard_group		      bfd_generic_discard_group
 #define bfd_mach_o_section_already_linked	      _bfd_generic_section_already_linked
 #define bfd_mach_o_bfd_define_common_symbol	      bfd_generic_define_common_symbol
 #define bfd_mach_o_bfd_link_hide_symbol		      _bfd_generic_link_hide_symbol
 #define bfd_mach_o_bfd_define_start_stop	      bfd_generic_define_start_stop
 #define bfd_mach_o_bfd_copy_private_bfd_data	      _bfd_generic_bfd_copy_private_bfd_data
 #define bfd_mach_o_core_file_matches_executable_p     generic_core_file_matches_executable_p
 #define bfd_mach_o_core_file_pid		      _bfd_nocore_core_file_pid
 #define bfd_mach_o_set_reloc			      _bfd_generic_set_reloc

 #define bfd_mach_o_get_dynamic_symtab_upper_bound     bfd_mach_o_get_symtab_upper_bound
 #define bfd_mach_o_canonicalize_dynamic_symtab	      bfd_mach_o_canonicalize_symtab

 /* For Mach-O special archives.  */
 #define bfd_mach_o_read_ar_hdr			  _bfd_noarchive_read_ar_hdr
 #define bfd_mach_o_write_ar_hdr			  _bfd_noarchive_write_ar_hdr
 #define bfd_mach_o_slurp_armap			  _bfd_noarchive_slurp_armap
 #define bfd_mach_o_slurp_extended_name_table	  _bfd_noarchive_slurp_extended_name_table
 #define bfd_mach_o_construct_extended_name_table  _bfd_noarchive_construct_extended_name_table
 #define bfd_mach_o_truncate_arname		  _bfd_noarchive_truncate_arname
 #define bfd_mach_o_write_armap			  _bfd_noarchive_write_armap
 #define bfd_mach_o_get_elt_at_index		  _bfd_noarchive_get_elt_at_index
 #define bfd_mach_o_update_armap_timestamp	  _bfd_noarchive_update_armap_timestamp

 #define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)

 #endif /* MACH_O_TARGET_COMMON_DEFINED */

 #ifndef TARGET_NAME
 #error TARGET_NAME must be defined
 #endif /* TARGET_NAME */

 #ifndef TARGET_STRING
 #error TARGET_STRING must be defined
 #endif /* TARGET_STRING */

 #ifndef TARGET_ARCHITECTURE
 #error TARGET_ARCHITECTURE must be defined
 #endif /* TARGET_ARCHITECTURE */

 #ifndef TARGET_BIG_ENDIAN
 #error TARGET_BIG_ENDIAN must be defined
 #endif /* TARGET_BIG_ENDIAN */

 #ifndef TARGET_ARCHIVE
 #error TARGET_ARCHIVE must be defined
 #endif /* TARGET_ARCHIVE */

 #ifndef TARGET_PAGESIZE
 #error TARGET_PAGESIZE must be defined
 #endif

 static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
 {
   TARGET_ARCHITECTURE,
   TARGET_PAGESIZE,
   bfd_mach_o_canonicalize_one_reloc,
   bfd_mach_o_swap_reloc_out,
   bfd_mach_o_print_thread,
   bfd_mach_o_tgt_seg_table,
   bfd_mach_o_section_type_valid_for_tgt
 };

 const bfd_target TARGET_NAME =
 {
   TARGET_STRING,		/* Name.  */
   bfd_target_mach_o_flavour,
 #if TARGET_BIG_ENDIAN
   BFD_ENDIAN_BIG,		/* Target byte order.  */
   BFD_ENDIAN_BIG,		/* Target headers byte order.  */
 #else
   BFD_ENDIAN_LITTLE,		/* Target byte order.  */
   BFD_ENDIAN_LITTLE,		/* Target headers byte order.  */
 #endif
   (HAS_RELOC | EXEC_P |		/* Object flags.  */
    HAS_LINENO | HAS_DEBUG |
    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
    | SEC_ALLOC | SEC_LOAD | SEC_RELOC),	/* Section flags.  */
   '_',				/* symbol_leading_char.  */
   ' ',				/* ar_pad_char.  */
   16,				/* ar_max_namelen.  */
   TARGET_PRIORITY,	/* match priority.  */
   TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols.  */

 #if TARGET_BIG_ENDIAN
   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.  */
 #else
   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
   bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* data */
   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
   bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* hdrs */
 #endif /* TARGET_BIG_ENDIAN */

   {				/* bfd_check_format.  */
 #if TARGET_ARCHIVE
     _bfd_dummy_target,
     _bfd_dummy_target,
     bfd_mach_o_archive_p,
     _bfd_dummy_target,
 #else
     _bfd_dummy_target,
     bfd_mach_o_object_p,
     bfd_generic_archive_p,
     bfd_mach_o_core_p
 #endif
   },
   {				/* bfd_set_format.  */
     _bfd_bool_bfd_false_error,
     bfd_mach_o_mkobject,
     _bfd_generic_mkarchive,
     bfd_mach_o_mkobject,
   },
   {				/* bfd_write_contents.  */
     _bfd_bool_bfd_false_error,
     bfd_mach_o_write_contents,
     _bfd_write_archive_contents,
     bfd_mach_o_write_contents,
   },

   BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
   BFD_JUMP_TABLE_COPY (bfd_mach_o),
   BFD_JUMP_TABLE_CORE (bfd_mach_o),
 #if TARGET_ARCHIVE
   BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
 #else
   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
 #endif
   BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
   BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
   BFD_JUMP_TABLE_WRITE (bfd_mach_o),
   BFD_JUMP_TABLE_LINK (bfd_mach_o),
   BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),

   /* Alternative endian target.  */
   NULL,

   /* Back-end data.  */
   &TARGET_NAME_BACKEND
 };
	/* Mach-O support for BFD.
	Copyright (C) 1999-2021 Free Software Foundation, Inc.

	This file is part of BFD, the Binary File Descriptor library.

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	MA 02110-1301, USA. */

	/* Define generic entry points here so that we don't need to duplicate the
	defines in every target. But define once as this file may be included
	several times. */
	#ifndef MACH_O_TARGET_COMMON_DEFINED
	#define MACH_O_TARGET_COMMON_DEFINED

	#define bfd_mach_o_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
	#define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
	#define bfd_mach_o_bfd_print_private_bfd_data bfd_mach_o_bfd_print_private_bfd_data
	#define bfd_mach_o_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
	#define bfd_mach_o_bfd_is_local_label_name bfd_generic_is_local_label_name
	#define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno
	#define bfd_mach_o_find_inliner_info _bfd_nosymbols_find_inliner_info
	#define bfd_mach_o_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string
	#define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
	#define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols
	#define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
	#define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
	#define bfd_mach_o_bfd_relax_section bfd_generic_relax_section
	#define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
	#define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols
	#define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms
	#define bfd_mach_o_bfd_copy_link_hash_symbol_type \
	_bfd_generic_copy_link_hash_symbol_type
	#define bfd_mach_o_bfd_final_link _bfd_generic_final_link
	#define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section
	#define bfd_mach_o_bfd_link_check_relocs _bfd_generic_link_check_relocs
	#define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
	#define bfd_mach_o_bfd_set_private_flags bfd_mach_o_bfd_set_private_flags
	#define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents
	#define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections
	#define bfd_mach_o_bfd_lookup_section_flags bfd_generic_lookup_section_flags
	#define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections
	#define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section
	#define bfd_mach_o_bfd_group_name bfd_generic_group_name
	#define bfd_mach_o_bfd_discard_group bfd_generic_discard_group
	#define bfd_mach_o_section_already_linked _bfd_generic_section_already_linked
	#define bfd_mach_o_bfd_define_common_symbol bfd_generic_define_common_symbol
	#define bfd_mach_o_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
	#define bfd_mach_o_bfd_define_start_stop bfd_generic_define_start_stop
	#define bfd_mach_o_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
	#define bfd_mach_o_core_file_matches_executable_p generic_core_file_matches_executable_p
	#define bfd_mach_o_core_file_pid _bfd_nocore_core_file_pid
	#define bfd_mach_o_set_reloc _bfd_generic_set_reloc

	#define bfd_mach_o_get_dynamic_symtab_upper_bound bfd_mach_o_get_symtab_upper_bound
	#define bfd_mach_o_canonicalize_dynamic_symtab bfd_mach_o_canonicalize_symtab

	/* For Mach-O special archives. */
	#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
	#define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
	#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
	#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
	#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
	#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
	#define bfd_mach_o_write_armap _bfd_noarchive_write_armap
	#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
	#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp

	#define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)

	#endif /* MACH_O_TARGET_COMMON_DEFINED */

	#ifndef TARGET_NAME
	#error TARGET_NAME must be defined
	#endif /* TARGET_NAME */

	#ifndef TARGET_STRING
	#error TARGET_STRING must be defined
	#endif /* TARGET_STRING */

	#ifndef TARGET_ARCHITECTURE
	#error TARGET_ARCHITECTURE must be defined
	#endif /* TARGET_ARCHITECTURE */

	#ifndef TARGET_BIG_ENDIAN
	#error TARGET_BIG_ENDIAN must be defined
	#endif /* TARGET_BIG_ENDIAN */

	#ifndef TARGET_ARCHIVE
	#error TARGET_ARCHIVE must be defined
	#endif /* TARGET_ARCHIVE */

	#ifndef TARGET_PAGESIZE
	#error TARGET_PAGESIZE must be defined
	#endif

	static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
	{
	TARGET_ARCHITECTURE,
	TARGET_PAGESIZE,
	bfd_mach_o_canonicalize_one_reloc,
	bfd_mach_o_swap_reloc_out,
	bfd_mach_o_print_thread,
	bfd_mach_o_tgt_seg_table,
	bfd_mach_o_section_type_valid_for_tgt
	};

	const bfd_target TARGET_NAME =
	{
	TARGET_STRING, /* Name. */
	bfd_target_mach_o_flavour,
	#if TARGET_BIG_ENDIAN
	BFD_ENDIAN_BIG, /* Target byte order. */
	BFD_ENDIAN_BIG, /* Target headers byte order. */
	#else
	BFD_ENDIAN_LITTLE, /* Target byte order. */
	BFD_ENDIAN_LITTLE, /* Target headers byte order. */
	#endif
	(HAS_RELOC \| EXEC_P \| /* Object flags. */
	HAS_LINENO \| HAS_DEBUG \|
	HAS_SYMS \| HAS_LOCALS \| DYNAMIC \| WP_TEXT \| D_PAGED),
	(SEC_CODE \| SEC_DATA \| SEC_ROM \| SEC_HAS_CONTENTS
	\| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* Section flags. */
	'_', /* symbol_leading_char. */
	' ', /* ar_pad_char. */
	16, /* ar_max_namelen. */
	TARGET_PRIORITY, /* match priority. */
	TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */

	#if TARGET_BIG_ENDIAN
	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. */
	#else
	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
	#endif /* TARGET_BIG_ENDIAN */

	{ /* bfd_check_format. */
	#if TARGET_ARCHIVE
	_bfd_dummy_target,
	_bfd_dummy_target,
	bfd_mach_o_archive_p,
	_bfd_dummy_target,
	#else
	_bfd_dummy_target,
	bfd_mach_o_object_p,
	bfd_generic_archive_p,
	bfd_mach_o_core_p
	#endif
	},
	{ /* bfd_set_format. */
	_bfd_bool_bfd_false_error,
	bfd_mach_o_mkobject,
	_bfd_generic_mkarchive,
	bfd_mach_o_mkobject,
	},
	{ /* bfd_write_contents. */
	_bfd_bool_bfd_false_error,
	bfd_mach_o_write_contents,
	_bfd_write_archive_contents,
	bfd_mach_o_write_contents,
	},

	BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
	BFD_JUMP_TABLE_COPY (bfd_mach_o),
	BFD_JUMP_TABLE_CORE (bfd_mach_o),
	#if TARGET_ARCHIVE
	BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
	#else
	BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
	#endif
	BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
	BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
	BFD_JUMP_TABLE_WRITE (bfd_mach_o),
	BFD_JUMP_TABLE_LINK (bfd_mach_o),
	BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),

	/* Alternative endian target. */
	NULL,

	/* Back-end data. */
	&TARGET_NAME_BACKEND
	};