1/* Mach-O support for BFD.
2   Copyright (C) 1999-2022 Free Software Foundation, Inc.
3
4   This file is part of BFD, the Binary File Descriptor library.
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program; if not, write to the Free Software
18   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19   MA 02110-1301, USA.  */
20
21/* Define generic entry points here so that we don't need to duplicate the
22   defines in every target.  But define once as this file may be included
23   several times.  */
24#ifndef MACH_O_TARGET_COMMON_DEFINED
25#define MACH_O_TARGET_COMMON_DEFINED
26
27#define bfd_mach_o_bfd_free_cached_info		      _bfd_generic_bfd_free_cached_info
28#define bfd_mach_o_get_section_contents_in_window     _bfd_generic_get_section_contents_in_window
29#define bfd_mach_o_bfd_print_private_bfd_data	      bfd_mach_o_bfd_print_private_bfd_data
30#define bfd_mach_o_bfd_is_target_special_symbol	      _bfd_bool_bfd_asymbol_false
31#define bfd_mach_o_bfd_is_local_label_name	      bfd_generic_is_local_label_name
32#define bfd_mach_o_get_lineno			      _bfd_nosymbols_get_lineno
33#define bfd_mach_o_find_inliner_info		      _bfd_nosymbols_find_inliner_info
34#define bfd_mach_o_get_symbol_version_string	      _bfd_nosymbols_get_symbol_version_string
35#define bfd_mach_o_bfd_make_debug_symbol	      _bfd_nosymbols_bfd_make_debug_symbol
36#define bfd_mach_o_read_minisymbols		      _bfd_generic_read_minisymbols
37#define bfd_mach_o_minisymbol_to_symbol		      _bfd_generic_minisymbol_to_symbol
38#define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
39#define bfd_mach_o_bfd_relax_section		      bfd_generic_relax_section
40#define bfd_mach_o_bfd_link_hash_table_create	      _bfd_generic_link_hash_table_create
41#define bfd_mach_o_bfd_link_add_symbols		      _bfd_generic_link_add_symbols
42#define bfd_mach_o_bfd_link_just_syms		      _bfd_generic_link_just_syms
43#define bfd_mach_o_bfd_copy_link_hash_symbol_type \
44  _bfd_generic_copy_link_hash_symbol_type
45#define bfd_mach_o_bfd_final_link		      _bfd_generic_final_link
46#define bfd_mach_o_bfd_link_split_section	      _bfd_generic_link_split_section
47#define bfd_mach_o_bfd_link_check_relocs	      _bfd_generic_link_check_relocs
48#define bfd_mach_o_bfd_merge_private_bfd_data	      _bfd_generic_bfd_merge_private_bfd_data
49#define bfd_mach_o_bfd_set_private_flags	      bfd_mach_o_bfd_set_private_flags
50#define bfd_mach_o_get_section_contents		      _bfd_generic_get_section_contents
51#define bfd_mach_o_bfd_gc_sections		      bfd_generic_gc_sections
52#define bfd_mach_o_bfd_lookup_section_flags	      bfd_generic_lookup_section_flags
53#define bfd_mach_o_bfd_merge_sections		      bfd_generic_merge_sections
54#define bfd_mach_o_bfd_is_group_section		      bfd_generic_is_group_section
55#define bfd_mach_o_bfd_group_name		      bfd_generic_group_name
56#define bfd_mach_o_bfd_discard_group		      bfd_generic_discard_group
57#define bfd_mach_o_section_already_linked	      _bfd_generic_section_already_linked
58#define bfd_mach_o_bfd_define_common_symbol	      bfd_generic_define_common_symbol
59#define bfd_mach_o_bfd_link_hide_symbol		      _bfd_generic_link_hide_symbol
60#define bfd_mach_o_bfd_define_start_stop	      bfd_generic_define_start_stop
61#define bfd_mach_o_bfd_copy_private_bfd_data	      _bfd_generic_bfd_copy_private_bfd_data
62#define bfd_mach_o_core_file_matches_executable_p     generic_core_file_matches_executable_p
63#define bfd_mach_o_core_file_pid		      _bfd_nocore_core_file_pid
64#define bfd_mach_o_set_reloc			      _bfd_generic_set_reloc
65
66#define bfd_mach_o_get_dynamic_symtab_upper_bound     bfd_mach_o_get_symtab_upper_bound
67#define bfd_mach_o_canonicalize_dynamic_symtab	      bfd_mach_o_canonicalize_symtab
68
69/* For Mach-O special archives.  */
70#define bfd_mach_o_read_ar_hdr			  _bfd_noarchive_read_ar_hdr
71#define bfd_mach_o_write_ar_hdr			  _bfd_noarchive_write_ar_hdr
72#define bfd_mach_o_slurp_armap			  _bfd_noarchive_slurp_armap
73#define bfd_mach_o_slurp_extended_name_table	  _bfd_noarchive_slurp_extended_name_table
74#define bfd_mach_o_construct_extended_name_table  _bfd_noarchive_construct_extended_name_table
75#define bfd_mach_o_truncate_arname		  _bfd_noarchive_truncate_arname
76#define bfd_mach_o_write_armap			  _bfd_noarchive_write_armap
77#define bfd_mach_o_get_elt_at_index		  _bfd_noarchive_get_elt_at_index
78#define bfd_mach_o_update_armap_timestamp	  _bfd_noarchive_update_armap_timestamp
79
80#define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
81
82#endif /* MACH_O_TARGET_COMMON_DEFINED */
83
84#ifndef TARGET_NAME
85#error TARGET_NAME must be defined
86#endif /* TARGET_NAME */
87
88#ifndef TARGET_STRING
89#error TARGET_STRING must be defined
90#endif /* TARGET_STRING */
91
92#ifndef TARGET_ARCHITECTURE
93#error TARGET_ARCHITECTURE must be defined
94#endif /* TARGET_ARCHITECTURE */
95
96#ifndef TARGET_BIG_ENDIAN
97#error TARGET_BIG_ENDIAN must be defined
98#endif /* TARGET_BIG_ENDIAN */
99
100#ifndef TARGET_ARCHIVE
101#error TARGET_ARCHIVE must be defined
102#endif /* TARGET_ARCHIVE */
103
104#ifndef TARGET_PAGESIZE
105#error TARGET_PAGESIZE must be defined
106#endif
107
108static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
109{
110  TARGET_ARCHITECTURE,
111  TARGET_PAGESIZE,
112  bfd_mach_o_canonicalize_one_reloc,
113  bfd_mach_o_swap_reloc_out,
114  bfd_mach_o_print_thread,
115  bfd_mach_o_tgt_seg_table,
116  bfd_mach_o_section_type_valid_for_tgt
117};
118
119const bfd_target TARGET_NAME =
120{
121  TARGET_STRING,		/* Name.  */
122  bfd_target_mach_o_flavour,
123#if TARGET_BIG_ENDIAN
124  BFD_ENDIAN_BIG,		/* Target byte order.  */
125  BFD_ENDIAN_BIG,		/* Target headers byte order.  */
126#else
127  BFD_ENDIAN_LITTLE,		/* Target byte order.  */
128  BFD_ENDIAN_LITTLE,		/* Target headers byte order.  */
129#endif
130  (HAS_RELOC | EXEC_P |		/* Object flags.  */
131   HAS_LINENO | HAS_DEBUG |
132   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
133  (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
134   | SEC_ALLOC | SEC_LOAD | SEC_RELOC),	/* Section flags.  */
135  '_',				/* symbol_leading_char.  */
136  ' ',				/* ar_pad_char.  */
137  16,				/* ar_max_namelen.  */
138  TARGET_PRIORITY,	/* match priority.  */
139  TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols.  */
140
141#if TARGET_BIG_ENDIAN
142  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
143  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
144  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Data.  */
145  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
146  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
147  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Hdrs.  */
148#else
149  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
150  bfd_getl32, bfd_getl_signed_32, bfd_putl32,
151  bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* data */
152  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
153  bfd_getl32, bfd_getl_signed_32, bfd_putl32,
154  bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* hdrs */
155#endif /* TARGET_BIG_ENDIAN */
156
157  {				/* bfd_check_format.  */
158#if TARGET_ARCHIVE
159    _bfd_dummy_target,
160    _bfd_dummy_target,
161    bfd_mach_o_archive_p,
162    _bfd_dummy_target,
163#else
164    _bfd_dummy_target,
165    bfd_mach_o_object_p,
166    bfd_generic_archive_p,
167    bfd_mach_o_core_p
168#endif
169  },
170  {				/* bfd_set_format.  */
171    _bfd_bool_bfd_false_error,
172    bfd_mach_o_mkobject,
173    _bfd_generic_mkarchive,
174    bfd_mach_o_mkobject,
175  },
176  {				/* bfd_write_contents.  */
177    _bfd_bool_bfd_false_error,
178    bfd_mach_o_write_contents,
179    _bfd_write_archive_contents,
180    bfd_mach_o_write_contents,
181  },
182
183  BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
184  BFD_JUMP_TABLE_COPY (bfd_mach_o),
185  BFD_JUMP_TABLE_CORE (bfd_mach_o),
186#if TARGET_ARCHIVE
187  BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
188#else
189  BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
190#endif
191  BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
192  BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
193  BFD_JUMP_TABLE_WRITE (bfd_mach_o),
194  BFD_JUMP_TABLE_LINK (bfd_mach_o),
195  BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
196
197  /* Alternative endian target.  */
198  NULL,
199
200  /* Back-end data.  */
201  &TARGET_NAME_BACKEND
202};
203
204