2009-11-23 Paul Brook <paul@codesourcery.com>
[external/binutils.git] / bfd / mach-o-target.c
1 /* Mach-O support for BFD.
2    Copyright 1999, 2000, 2001, 2002, 2005, 2007, 2008, 2009
3    Free Software Foundation, Inc.
4
5    This file is part of BFD, the Binary File Descriptor library.
6
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software 
19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20    MA 02110-1301, USA.  */
21
22 /* Define generic entry points here so that we don't need to duplicate the
23    defines in every target.  But define once as this file may be included
24    several times.  */
25 #ifndef MACH_O_TARGET_COMMON_DEFINED
26 #define MACH_O_TARGET_COMMON_DEFINED
27
28 #define bfd_mach_o_mkarchive                          _bfd_noarchive_mkarchive
29 #define bfd_mach_o_read_ar_hdr                        _bfd_noarchive_read_ar_hdr
30 #define bfd_mach_o_slurp_armap                        _bfd_noarchive_slurp_armap
31 #define bfd_mach_o_slurp_extended_name_table          _bfd_noarchive_slurp_extended_name_table
32 #define bfd_mach_o_construct_extended_name_table      _bfd_noarchive_construct_extended_name_table
33 #define bfd_mach_o_truncate_arname                    _bfd_noarchive_truncate_arname
34 #define bfd_mach_o_write_armap                        _bfd_noarchive_write_armap
35 #define bfd_mach_o_get_elt_at_index                   _bfd_noarchive_get_elt_at_index
36 #define bfd_mach_o_generic_stat_arch_elt              _bfd_noarchive_generic_stat_arch_elt
37 #define bfd_mach_o_update_armap_timestamp             _bfd_noarchive_update_armap_timestamp
38 #define bfd_mach_o_close_and_cleanup                  _bfd_generic_close_and_cleanup
39 #define bfd_mach_o_bfd_free_cached_info               _bfd_generic_bfd_free_cached_info
40 #define bfd_mach_o_new_section_hook                   _bfd_generic_new_section_hook
41 #define bfd_mach_o_get_section_contents_in_window     _bfd_generic_get_section_contents_in_window
42 #define bfd_mach_o_bfd_is_target_special_symbol       ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
43 #define bfd_mach_o_bfd_is_local_label_name            bfd_generic_is_local_label_name
44 #define bfd_mach_o_get_lineno                         _bfd_nosymbols_get_lineno
45 #define bfd_mach_o_find_nearest_line                  _bfd_nosymbols_find_nearest_line
46 #define bfd_mach_o_find_inliner_info                  _bfd_nosymbols_find_inliner_info
47 #define bfd_mach_o_bfd_make_debug_symbol              _bfd_nosymbols_bfd_make_debug_symbol
48 #define bfd_mach_o_read_minisymbols                   _bfd_generic_read_minisymbols
49 #define bfd_mach_o_minisymbol_to_symbol               _bfd_generic_minisymbol_to_symbol
50 #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
51 #define bfd_mach_o_bfd_relax_section                  bfd_generic_relax_section
52 #define bfd_mach_o_bfd_link_hash_table_create         _bfd_generic_link_hash_table_create
53 #define bfd_mach_o_bfd_link_hash_table_free           _bfd_generic_link_hash_table_free
54 #define bfd_mach_o_bfd_link_add_symbols               _bfd_generic_link_add_symbols
55 #define bfd_mach_o_bfd_link_just_syms                 _bfd_generic_link_just_syms
56 #define bfd_mach_o_bfd_copy_link_hash_symbol_type \
57   _bfd_generic_copy_link_hash_symbol_type
58 #define bfd_mach_o_bfd_final_link                     _bfd_generic_final_link
59 #define bfd_mach_o_bfd_link_split_section             _bfd_generic_link_split_section
60 #define bfd_mach_o_set_arch_mach                      bfd_default_set_arch_mach
61 #define bfd_mach_o_bfd_merge_private_bfd_data         _bfd_generic_bfd_merge_private_bfd_data
62 #define bfd_mach_o_bfd_set_private_flags              _bfd_generic_bfd_set_private_flags
63 #define bfd_mach_o_get_section_contents               _bfd_generic_get_section_contents
64 #define bfd_mach_o_bfd_gc_sections                    bfd_generic_gc_sections
65 #define bfd_mach_o_bfd_merge_sections                 bfd_generic_merge_sections
66 #define bfd_mach_o_bfd_is_group_section               bfd_generic_is_group_section
67 #define bfd_mach_o_bfd_discard_group                  bfd_generic_discard_group
68 #define bfd_mach_o_section_already_linked             _bfd_generic_section_already_linked
69 #define bfd_mach_o_bfd_define_common_symbol           bfd_generic_define_common_symbol
70 #define bfd_mach_o_bfd_copy_private_header_data       _bfd_generic_bfd_copy_private_header_data
71 #define bfd_mach_o_core_file_matches_executable_p     generic_core_file_matches_executable_p
72
73 #define bfd_mach_o_get_dynamic_symtab_upper_bound     bfd_mach_o_get_symtab_upper_bound
74 #define bfd_mach_o_canonicalize_dynamic_symtab        bfd_mach_o_canonicalize_symtab
75
76 #define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
77
78 #endif /* MACH_O_TARGET_COMMON_DEFINED */
79
80 #ifndef TARGET_NAME
81 #error TARGET_NAME must be defined
82 #endif /* TARGET_NAME */
83
84 #ifndef TARGET_STRING
85 #error TARGET_STRING must be defined
86 #endif /* TARGET_STRING */
87
88 #ifndef TARGET_BIG_ENDIAN
89 #error TARGET_BIG_ENDIAN must be defined
90 #endif /* TARGET_BIG_ENDIAN */
91
92 #ifndef TARGET_ARCHIVE
93 #error TARGET_ARCHIVE must be defined
94 #endif /* TARGET_ARCHIVE */
95
96 #if ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN))
97 #error Mach-O fat files must always be big-endian.
98 #endif /* ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN)) */
99
100 static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
101 {
102   bfd_mach_o_swap_reloc_in,
103   bfd_mach_o_swap_reloc_out,
104   bfd_mach_o_print_thread
105 };
106
107 const bfd_target TARGET_NAME =
108 {
109   TARGET_STRING,                /* Name.  */
110   bfd_target_mach_o_flavour,
111 #if TARGET_BIG_ENDIAN
112   BFD_ENDIAN_BIG,               /* Target byte order.  */
113   BFD_ENDIAN_BIG,               /* Target headers byte order.  */
114 #else
115   BFD_ENDIAN_LITTLE,            /* Target byte order.  */
116   BFD_ENDIAN_LITTLE,            /* Target headers byte order.  */
117 #endif
118   (HAS_RELOC | EXEC_P |         /* Object flags.  */
119    HAS_LINENO | HAS_DEBUG |
120    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
121   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
122    | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags.  */
123   '_',                          /* symbol_leading_char.  */
124   ' ',                          /* ar_pad_char.  */
125   16,                           /* ar_max_namelen.  */
126
127 #if TARGET_BIG_ENDIAN
128   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
129   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
130   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
131   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
132   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
133   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Hdrs.  */
134 #else
135   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
136   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
137   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* data */
138   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
139   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
140   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* hdrs */
141 #endif /* TARGET_BIG_ENDIAN */
142
143   {                             /* bfd_check_format.  */
144 #if TARGET_ARCHIVE
145     _bfd_dummy_target,
146     _bfd_dummy_target,
147     bfd_mach_o_archive_p,
148     _bfd_dummy_target,
149 #else
150     _bfd_dummy_target,
151     bfd_mach_o_object_p,
152     bfd_generic_archive_p,
153     bfd_mach_o_core_p
154 #endif
155   },
156   {                             /* bfd_set_format.  */
157     bfd_false,
158     bfd_mach_o_mkobject,
159     _bfd_generic_mkarchive,
160     bfd_mach_o_mkobject,
161   },
162   {                             /* bfd_write_contents.  */
163     bfd_false,
164     bfd_mach_o_write_contents,
165     _bfd_write_archive_contents,
166     bfd_mach_o_write_contents,
167   },
168
169   BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
170   BFD_JUMP_TABLE_COPY (bfd_mach_o),
171   BFD_JUMP_TABLE_CORE (bfd_mach_o),
172 #if TARGET_ARCHIVE
173   BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
174 #else
175   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
176 #endif
177   BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
178   BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
179   BFD_JUMP_TABLE_WRITE (bfd_mach_o),
180   BFD_JUMP_TABLE_LINK (bfd_mach_o),
181   BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
182
183   /* Alternative endian target.  */
184   NULL,
185
186   /* Back-end data.  */
187   &TARGET_NAME_BACKEND
188 };
189