GNU Binutils v2.34
[binutils.git] / bfd / mach-o-target.c
1 /* Mach-O support for BFD.
2    Copyright (C) 1999-2020 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
108 static 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
119 const 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
140 #if TARGET_BIG_ENDIAN
141   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
142   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
143   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
144   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
145   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
146   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Hdrs.  */
147 #else
148   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
149   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
150   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* data */
151   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
152   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
153   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* hdrs */
154 #endif /* TARGET_BIG_ENDIAN */
155
156   {                             /* bfd_check_format.  */
157 #if TARGET_ARCHIVE
158     _bfd_dummy_target,
159     _bfd_dummy_target,
160     bfd_mach_o_archive_p,
161     _bfd_dummy_target,
162 #else
163     _bfd_dummy_target,
164     bfd_mach_o_object_p,
165     bfd_generic_archive_p,
166     bfd_mach_o_core_p
167 #endif
168   },
169   {                             /* bfd_set_format.  */
170     _bfd_bool_bfd_false_error,
171     bfd_mach_o_mkobject,
172     _bfd_generic_mkarchive,
173     bfd_mach_o_mkobject,
174   },
175   {                             /* bfd_write_contents.  */
176     _bfd_bool_bfd_false_error,
177     bfd_mach_o_write_contents,
178     _bfd_write_archive_contents,
179     bfd_mach_o_write_contents,
180   },
181
182   BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
183   BFD_JUMP_TABLE_COPY (bfd_mach_o),
184   BFD_JUMP_TABLE_CORE (bfd_mach_o),
185 #if TARGET_ARCHIVE
186   BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
187 #else
188   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
189 #endif
190   BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
191   BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
192   BFD_JUMP_TABLE_WRITE (bfd_mach_o),
193   BFD_JUMP_TABLE_LINK (bfd_mach_o),
194   BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
195
196   /* Alternative endian target.  */
197   NULL,
198
199   /* Back-end data.  */
200   &TARGET_NAME_BACKEND
201 };
202