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3af9a47b | 1 | /* Mach-O support for BFD. |
b3adc24a | 2 | Copyright (C) 1999-2020 Free Software Foundation, Inc. |
3af9a47b NC |
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 | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b NC |
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 | |
a95a4550 | 17 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
3af9a47b | 20 | |
3db64b00 | 21 | #include "sysdep.h" |
7a6e0d89 | 22 | #include <limits.h> |
3af9a47b | 23 | #include "bfd.h" |
3af9a47b NC |
24 | #include "libbfd.h" |
25 | #include "libiberty.h" | |
2d5d5a8f | 26 | #include "mach-o.h" |
15e1c58a | 27 | #include "aout/stab_gnu.h" |
46d1c23b TG |
28 | #include "mach-o/reloc.h" |
29 | #include "mach-o/external.h" | |
3af9a47b | 30 | #include <ctype.h> |
7f307238 IS |
31 | #include <stdlib.h> |
32 | #include <string.h> | |
3af9a47b | 33 | |
154a1ee5 TG |
34 | #define bfd_mach_o_object_p bfd_mach_o_gen_object_p |
35 | #define bfd_mach_o_core_p bfd_mach_o_gen_core_p | |
42fa0891 | 36 | #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject |
116c20d2 | 37 | |
92bc0e80 | 38 | #define FILE_ALIGN(off, algn) \ |
b6518b38 | 39 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn))) |
92bc0e80 | 40 | |
c9ffd2ea TG |
41 | static bfd_boolean |
42 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd); | |
43 | ||
c2f09c75 | 44 | unsigned int |
1e8a024a TG |
45 | bfd_mach_o_version (bfd *abfd) |
46 | { | |
47 | bfd_mach_o_data_struct *mdata = NULL; | |
48 | ||
49 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
046b007d | 50 | mdata = bfd_mach_o_get_data (abfd); |
1e8a024a TG |
51 | |
52 | return mdata->header.version; | |
53 | } | |
54 | ||
b34976b6 | 55 | bfd_boolean |
116c20d2 | 56 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
57 | { |
58 | if (abfd == NULL || abfd->xvec == NULL) | |
154a1ee5 | 59 | return FALSE; |
3af9a47b | 60 | |
154a1ee5 TG |
61 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
62 | return FALSE; | |
3af9a47b | 63 | |
046b007d | 64 | if (bfd_mach_o_get_data (abfd) == NULL) |
154a1ee5 TG |
65 | return FALSE; |
66 | return TRUE; | |
67 | } | |
68 | ||
c2f09c75 TG |
69 | static INLINE bfd_boolean |
70 | mach_o_wide_p (bfd_mach_o_header *header) | |
71 | { | |
72 | switch (header->version) | |
73 | { | |
74 | case 1: | |
75 | return FALSE; | |
76 | case 2: | |
77 | return TRUE; | |
78 | default: | |
79 | BFD_FAIL (); | |
80 | return FALSE; | |
81 | } | |
82 | } | |
83 | ||
84 | static INLINE bfd_boolean | |
85 | bfd_mach_o_wide_p (bfd *abfd) | |
86 | { | |
046b007d | 87 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
c2f09c75 | 88 | } |
68ffbac6 | 89 | |
154a1ee5 TG |
90 | /* Tables to translate well known Mach-O segment/section names to bfd |
91 | names. Use of canonical names (such as .text or .debug_frame) is required | |
92 | by gdb. */ | |
93 | ||
a4551119 TG |
94 | /* __TEXT Segment. */ |
95 | static const mach_o_section_name_xlat text_section_names_xlat[] = | |
154a1ee5 | 96 | { |
68ffbac6 | 97 | { ".text", "__text", |
a4551119 TG |
98 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, |
99 | BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0}, | |
100 | { ".const", "__const", | |
101 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
102 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
103 | { ".static_const", "__static_const", | |
104 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
105 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
106 | { ".cstring", "__cstring", | |
107 | SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS, | |
108 | BFD_MACH_O_S_CSTRING_LITERALS, | |
109 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
110 | { ".literal4", "__literal4", | |
111 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS, | |
112 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
113 | { ".literal8", "__literal8", | |
114 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS, | |
115 | BFD_MACH_O_S_ATTR_NONE, 3}, | |
116 | { ".literal16", "__literal16", | |
117 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS, | |
118 | BFD_MACH_O_S_ATTR_NONE, 4}, | |
119 | { ".constructor", "__constructor", | |
120 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
121 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
122 | { ".destructor", "__destructor", | |
123 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
124 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
125 | { ".eh_frame", "__eh_frame", | |
632039e0 | 126 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED, |
a4551119 TG |
127 | BFD_MACH_O_S_ATTR_LIVE_SUPPORT |
128 | | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS | |
632039e0 | 129 | | BFD_MACH_O_S_ATTR_NO_TOC, 2}, |
a4551119 | 130 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
131 | }; |
132 | ||
a4551119 TG |
133 | /* __DATA Segment. */ |
134 | static const mach_o_section_name_xlat data_section_names_xlat[] = | |
154a1ee5 | 135 | { |
a4551119 TG |
136 | { ".data", "__data", |
137 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
138 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
139 | { ".bss", "__bss", | |
140 | SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL, | |
141 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
142 | { ".const_data", "__const", | |
143 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
144 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
145 | { ".static_data", "__static_data", | |
146 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
147 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
148 | { ".mod_init_func", "__mod_init_func", | |
149 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS, | |
150 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
151 | { ".mod_term_func", "__mod_term_func", | |
152 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS, | |
153 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
154 | { ".dyld", "__dyld", | |
155 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
156 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
157 | { ".cfstring", "__cfstring", | |
158 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
159 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
160 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
161 | }; |
162 | ||
a4551119 TG |
163 | /* __DWARF Segment. */ |
164 | static const mach_o_section_name_xlat dwarf_section_names_xlat[] = | |
154a1ee5 | 165 | { |
a4551119 TG |
166 | { ".debug_frame", "__debug_frame", |
167 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
168 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
169 | { ".debug_info", "__debug_info", | |
170 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
171 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
172 | { ".debug_abbrev", "__debug_abbrev", | |
173 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
174 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
175 | { ".debug_aranges", "__debug_aranges", | |
176 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
177 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
178 | { ".debug_macinfo", "__debug_macinfo", | |
179 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
180 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
181 | { ".debug_line", "__debug_line", | |
182 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
183 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
184 | { ".debug_loc", "__debug_loc", | |
185 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
186 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
187 | { ".debug_pubnames", "__debug_pubnames", | |
188 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
189 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
190 | { ".debug_pubtypes", "__debug_pubtypes", | |
191 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
192 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
193 | { ".debug_str", "__debug_str", | |
194 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
195 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
196 | { ".debug_ranges", "__debug_ranges", | |
197 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
198 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
199 | { ".debug_macro", "__debug_macro", | |
200 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
201 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
671a6cbe NC |
202 | { ".debug_gdb_scripts", "__debug_gdb_scri", |
203 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
204 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
a4551119 | 205 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
206 | }; |
207 | ||
a4551119 TG |
208 | /* __OBJC Segment. */ |
209 | static const mach_o_section_name_xlat objc_section_names_xlat[] = | |
210 | { | |
211 | { ".objc_class", "__class", | |
212 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
213 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
214 | { ".objc_meta_class", "__meta_class", | |
215 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
216 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
217 | { ".objc_cat_cls_meth", "__cat_cls_meth", | |
218 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
219 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
220 | { ".objc_cat_inst_meth", "__cat_inst_meth", | |
221 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
222 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
223 | { ".objc_protocol", "__protocol", | |
224 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
225 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
226 | { ".objc_string_object", "__string_object", | |
227 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
228 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
229 | { ".objc_cls_meth", "__cls_meth", | |
230 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
231 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
232 | { ".objc_inst_meth", "__inst_meth", | |
233 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
234 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
235 | { ".objc_cls_refs", "__cls_refs", | |
236 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
237 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
238 | { ".objc_message_refs", "__message_refs", | |
239 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
240 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
241 | { ".objc_symbols", "__symbols", | |
242 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
243 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
244 | { ".objc_category", "__category", | |
245 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
246 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
247 | { ".objc_class_vars", "__class_vars", | |
248 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
249 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
250 | { ".objc_instance_vars", "__instance_vars", | |
251 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
252 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
253 | { ".objc_module_info", "__module_info", | |
254 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
255 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
256 | { ".objc_selector_strs", "__selector_strs", | |
257 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS, | |
258 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
259 | { ".objc_image_info", "__image_info", | |
260 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
261 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
262 | { ".objc_selector_fixup", "__sel_fixup", | |
263 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
264 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
265 | /* Objc V1 */ | |
266 | { ".objc1_class_ext", "__class_ext", | |
267 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
268 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
269 | { ".objc1_property_list", "__property", | |
270 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
271 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
272 | { ".objc1_protocol_ext", "__protocol_ext", | |
273 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
274 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
275 | { NULL, NULL, 0, 0, 0, 0} | |
276 | }; | |
5a5cbf72 | 277 | |
a4551119 | 278 | static const mach_o_segment_name_xlat segsec_names_xlat[] = |
154a1ee5 | 279 | { |
154a1ee5 TG |
280 | { "__TEXT", text_section_names_xlat }, |
281 | { "__DATA", data_section_names_xlat }, | |
5a5cbf72 | 282 | { "__DWARF", dwarf_section_names_xlat }, |
a4551119 | 283 | { "__OBJC", objc_section_names_xlat }, |
154a1ee5 TG |
284 | { NULL, NULL } |
285 | }; | |
286 | ||
2ca7691a TG |
287 | static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF"; |
288 | ||
a4551119 TG |
289 | /* For both cases bfd-name => mach-o name and vice versa, the specific target |
290 | is checked before the generic. This allows a target (e.g. ppc for cstring) | |
291 | to override the generic definition with a more specific one. */ | |
154a1ee5 | 292 | |
a4551119 TG |
293 | /* Fetch the translation from a Mach-O section designation (segment, section) |
294 | as a bfd short name, if one exists. Otherwise return NULL. | |
68ffbac6 | 295 | |
a4551119 TG |
296 | Allow the segment and section names to be unterminated 16 byte arrays. */ |
297 | ||
298 | const mach_o_section_name_xlat * | |
299 | bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname, | |
300 | const char *sectname) | |
154a1ee5 TG |
301 | { |
302 | const struct mach_o_segment_name_xlat *seg; | |
a4551119 TG |
303 | const mach_o_section_name_xlat *sec; |
304 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
154a1ee5 | 305 | |
a4551119 TG |
306 | /* First try any target-specific translations defined... */ |
307 | if (bed->segsec_names_xlat) | |
308 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
309 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
310 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
311 | if (strncmp (sec->mach_o_name, sectname, | |
312 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
313 | return sec; | |
8462aec7 | 314 | |
a4551119 | 315 | /* ... and then the Mach-O generic ones. */ |
154a1ee5 | 316 | for (seg = segsec_names_xlat; seg->segname; seg++) |
a4551119 TG |
317 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) |
318 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
07d6d2b8 | 319 | if (strncmp (sec->mach_o_name, sectname, |
a4551119 | 320 | BFD_MACH_O_SECTNAME_SIZE) == 0) |
07d6d2b8 | 321 | return sec; |
154a1ee5 | 322 | |
68ffbac6 | 323 | return NULL; |
53d58d96 TG |
324 | } |
325 | ||
a4551119 | 326 | /* If the bfd_name for this section is a 'canonical' form for which we |
68ffbac6 | 327 | know the Mach-O data, return the segment name and the data for the |
a4551119 | 328 | Mach-O equivalent. Otherwise return NULL. */ |
7ba695a9 | 329 | |
a4551119 TG |
330 | const mach_o_section_name_xlat * |
331 | bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name, | |
332 | const char **segname) | |
53d58d96 | 333 | { |
a4551119 TG |
334 | const struct mach_o_segment_name_xlat *seg; |
335 | const mach_o_section_name_xlat *sec; | |
336 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
337 | *segname = NULL; | |
338 | ||
339 | if (bfd_name[0] != '.') | |
340 | return NULL; | |
341 | ||
342 | /* First try any target-specific translations defined... */ | |
343 | if (bed->segsec_names_xlat) | |
344 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
345 | for (sec = seg->sections; sec->bfd_name; sec++) | |
346 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
347 | { | |
348 | *segname = seg->segname; | |
349 | return sec; | |
350 | } | |
351 | ||
352 | /* ... and then the Mach-O generic ones. */ | |
353 | for (seg = segsec_names_xlat; seg->segname; seg++) | |
354 | for (sec = seg->sections; sec->bfd_name; sec++) | |
355 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
356 | { | |
357 | *segname = seg->segname; | |
358 | return sec; | |
359 | } | |
360 | ||
68ffbac6 | 361 | return NULL; |
a4551119 TG |
362 | } |
363 | ||
364 | /* Convert Mach-O section name to BFD. | |
365 | ||
68ffbac6 | 366 | Try to use standard/canonical names, for which we have tables including |
a4551119 TG |
367 | default flag settings - which are returned. Otherwise forge a new name |
368 | in the form "<segmentname>.<sectionname>" this will be prefixed with | |
369 | LC_SEGMENT. if the segment name does not begin with an underscore. | |
370 | ||
371 | SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL- | |
372 | terminated if the name length is exactly 16 bytes - but must be if the name | |
373 | length is less than 16 characters). */ | |
374 | ||
375 | void | |
376 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname, | |
377 | const char *secname, const char **name, | |
378 | flagword *flags) | |
379 | { | |
380 | const mach_o_section_name_xlat *xlat; | |
53d58d96 TG |
381 | char *res; |
382 | unsigned int len; | |
383 | const char *pfx = ""; | |
384 | ||
a4551119 TG |
385 | *name = NULL; |
386 | *flags = SEC_NO_FLAGS; | |
53d58d96 | 387 | |
68ffbac6 | 388 | /* First search for a canonical name... |
a4551119 TG |
389 | xlat will be non-null if there is an entry for segname, secname. */ |
390 | xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname); | |
391 | if (xlat) | |
392 | { | |
393 | len = strlen (xlat->bfd_name); | |
64d29018 | 394 | res = bfd_alloc (abfd, len + 1); |
a4551119 TG |
395 | if (res == NULL) |
396 | return; | |
397 | memcpy (res, xlat->bfd_name, len+1); | |
398 | *name = res; | |
399 | *flags = xlat->bfd_flags; | |
400 | return; | |
401 | } | |
402 | ||
403 | /* ... else we make up a bfd name from the segment concatenated with the | |
404 | section. */ | |
154a1ee5 | 405 | |
7ba695a9 | 406 | len = 16 + 1 + 16 + 1; |
154a1ee5 | 407 | |
c2f09c75 TG |
408 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
409 | with an underscore. */ | |
f1bde64c | 410 | if (segname[0] != '_') |
c2f09c75 TG |
411 | { |
412 | static const char seg_pfx[] = "LC_SEGMENT."; | |
413 | ||
414 | pfx = seg_pfx; | |
415 | len += sizeof (seg_pfx) - 1; | |
416 | } | |
417 | ||
154a1ee5 TG |
418 | res = bfd_alloc (abfd, len); |
419 | if (res == NULL) | |
8462aec7 | 420 | return; |
a4551119 | 421 | snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname); |
8462aec7 | 422 | *name = res; |
154a1ee5 TG |
423 | } |
424 | ||
a4551119 | 425 | /* Convert a bfd section name to a Mach-O segment + section name. |
154a1ee5 | 426 | |
a4551119 TG |
427 | If the name is a canonical one for which we have a Darwin match |
428 | return the translation table - which contains defaults for flags, | |
429 | type, attribute and default alignment data. | |
430 | ||
68ffbac6 | 431 | Otherwise, expand the bfd_name (assumed to be in the form |
a4551119 TG |
432 | "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */ |
433 | ||
434 | static const mach_o_section_name_xlat * | |
154a1ee5 | 435 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
07d6d2b8 AM |
436 | asection *sect, |
437 | bfd_mach_o_section *section) | |
154a1ee5 | 438 | { |
a4551119 | 439 | const mach_o_section_name_xlat *xlat; |
fd361982 | 440 | const char *name = bfd_section_name (sect); |
a4551119 | 441 | const char *segname; |
154a1ee5 TG |
442 | const char *dot; |
443 | unsigned int len; | |
444 | unsigned int seglen; | |
445 | unsigned int seclen; | |
446 | ||
a4551119 TG |
447 | memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1); |
448 | memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1); | |
449 | ||
450 | /* See if is a canonical name ... */ | |
451 | xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname); | |
452 | if (xlat) | |
453 | { | |
454 | strcpy (section->segname, segname); | |
455 | strcpy (section->sectname, xlat->mach_o_name); | |
456 | return xlat; | |
457 | } | |
154a1ee5 | 458 | |
a4551119 TG |
459 | /* .. else we convert our constructed one back to Mach-O. |
460 | Strip LC_SEGMENT. prefix, if present. */ | |
154a1ee5 TG |
461 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
462 | name += 11; | |
463 | ||
464 | /* Find a dot. */ | |
465 | dot = strchr (name, '.'); | |
466 | len = strlen (name); | |
467 | ||
468 | /* Try to split name into segment and section names. */ | |
469 | if (dot && dot != name) | |
470 | { | |
471 | seglen = dot - name; | |
472 | seclen = len - (dot + 1 - name); | |
473 | ||
ca148c5a TG |
474 | if (seglen <= BFD_MACH_O_SEGNAME_SIZE |
475 | && seclen <= BFD_MACH_O_SECTNAME_SIZE) | |
07d6d2b8 AM |
476 | { |
477 | memcpy (section->segname, name, seglen); | |
478 | section->segname[seglen] = 0; | |
479 | memcpy (section->sectname, dot + 1, seclen); | |
480 | section->sectname[seclen] = 0; | |
481 | return NULL; | |
482 | } | |
154a1ee5 TG |
483 | } |
484 | ||
a4551119 TG |
485 | /* The segment and section names are both missing - don't make them |
486 | into dots. */ | |
487 | if (dot && dot == name) | |
488 | return NULL; | |
489 | ||
490 | /* Just duplicate the name into both segment and section. */ | |
154a1ee5 TG |
491 | if (len > 16) |
492 | len = 16; | |
493 | memcpy (section->segname, name, len); | |
494 | section->segname[len] = 0; | |
495 | memcpy (section->sectname, name, len); | |
496 | section->sectname[len] = 0; | |
a4551119 | 497 | return NULL; |
3af9a47b NC |
498 | } |
499 | ||
b2b62060 TG |
500 | /* Return the size of an entry for section SEC. |
501 | Must be called only for symbol pointer section and symbol stubs | |
502 | sections. */ | |
503 | ||
c5012cd8 | 504 | unsigned int |
b2b62060 TG |
505 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
506 | { | |
507 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
508 | { | |
509 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
510 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
511 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
512 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
513 | return sec->reserved2; | |
514 | default: | |
515 | BFD_FAIL (); | |
516 | return 0; | |
517 | } | |
518 | } | |
519 | ||
520 | /* Return the number of indirect symbols for a section. | |
521 | Must be called only for symbol pointer section and symbol stubs | |
522 | sections. */ | |
523 | ||
c5012cd8 | 524 | unsigned int |
b2b62060 TG |
525 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
526 | { | |
527 | unsigned int elsz; | |
528 | ||
529 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); | |
530 | if (elsz == 0) | |
531 | return 0; | |
532 | else | |
533 | return sec->size / elsz; | |
534 | } | |
535 | ||
c9ffd2ea TG |
536 | /* Append command CMD to ABFD. Note that header.ncmds is not updated. */ |
537 | ||
538 | static void | |
539 | bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd) | |
540 | { | |
541 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
542 | ||
543 | if (mdata->last_command != NULL) | |
544 | mdata->last_command->next = cmd; | |
545 | else | |
546 | mdata->first_command = cmd; | |
547 | mdata->last_command = cmd; | |
548 | cmd->next = NULL; | |
549 | } | |
b2b62060 | 550 | |
3af9a47b NC |
551 | /* Copy any private info we understand from the input symbol |
552 | to the output symbol. */ | |
553 | ||
154a1ee5 | 554 | bfd_boolean |
116c20d2 | 555 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
b22161d6 | 556 | asymbol *isymbol, |
116c20d2 | 557 | bfd *obfd ATTRIBUTE_UNUSED, |
b22161d6 IS |
558 | asymbol *osymbol) |
559 | { | |
560 | bfd_mach_o_asymbol *os, *is; | |
c9ffd2ea | 561 | |
b22161d6 IS |
562 | os = (bfd_mach_o_asymbol *)osymbol; |
563 | is = (bfd_mach_o_asymbol *)isymbol; | |
564 | os->n_type = is->n_type; | |
565 | os->n_sect = is->n_sect; | |
566 | os->n_desc = is->n_desc; | |
567 | os->symbol.udata.i = is->symbol.udata.i; | |
c9ffd2ea | 568 | |
b34976b6 | 569 | return TRUE; |
3af9a47b NC |
570 | } |
571 | ||
572 | /* Copy any private info we understand from the input section | |
573 | to the output section. */ | |
574 | ||
154a1ee5 | 575 | bfd_boolean |
c9ffd2ea TG |
576 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection, |
577 | bfd *obfd, asection *osection) | |
a4551119 | 578 | { |
c9ffd2ea TG |
579 | bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection); |
580 | bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection); | |
68ffbac6 | 581 | |
c9ffd2ea TG |
582 | if (ibfd->xvec->flavour != bfd_target_mach_o_flavour |
583 | || obfd->xvec->flavour != bfd_target_mach_o_flavour) | |
584 | return TRUE; | |
585 | ||
586 | BFD_ASSERT (is != NULL && os != NULL); | |
587 | ||
588 | os->flags = is->flags; | |
589 | os->reserved1 = is->reserved1; | |
590 | os->reserved2 = is->reserved2; | |
591 | os->reserved3 = is->reserved3; | |
a4551119 | 592 | |
b34976b6 | 593 | return TRUE; |
3af9a47b NC |
594 | } |
595 | ||
c6643fcc NC |
596 | static const char * |
597 | cputype (unsigned long value) | |
598 | { | |
599 | switch (value) | |
600 | { | |
601 | case BFD_MACH_O_CPU_TYPE_VAX: return "VAX"; | |
602 | case BFD_MACH_O_CPU_TYPE_MC680x0: return "MC68k"; | |
603 | case BFD_MACH_O_CPU_TYPE_I386: return "I386"; | |
604 | case BFD_MACH_O_CPU_TYPE_MIPS: return "MIPS"; | |
605 | case BFD_MACH_O_CPU_TYPE_MC98000: return "MC98k"; | |
606 | case BFD_MACH_O_CPU_TYPE_HPPA: return "HPPA"; | |
607 | case BFD_MACH_O_CPU_TYPE_ARM: return "ARM"; | |
608 | case BFD_MACH_O_CPU_TYPE_MC88000: return "MC88K"; | |
609 | case BFD_MACH_O_CPU_TYPE_SPARC: return "SPARC"; | |
610 | case BFD_MACH_O_CPU_TYPE_I860: return "I860"; | |
611 | case BFD_MACH_O_CPU_TYPE_ALPHA: return "ALPHA"; | |
612 | case BFD_MACH_O_CPU_TYPE_POWERPC: return "PPC"; | |
613 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: return "PPC64"; | |
614 | case BFD_MACH_O_CPU_TYPE_X86_64: return "X86_64"; | |
615 | case BFD_MACH_O_CPU_TYPE_ARM64: return "ARM64"; | |
616 | default: return _("<unknown>"); | |
617 | } | |
618 | } | |
619 | ||
620 | static const char * | |
4bb7a87e | 621 | cpusubtype (unsigned long cpu_type, unsigned long cpu_subtype) |
c6643fcc NC |
622 | { |
623 | static char buffer[128]; | |
624 | ||
625 | buffer[0] = 0; | |
4bb7a87e | 626 | switch (cpu_subtype & BFD_MACH_O_CPU_SUBTYPE_MASK) |
c6643fcc NC |
627 | { |
628 | case 0: | |
629 | break; | |
630 | case BFD_MACH_O_CPU_SUBTYPE_LIB64: | |
631 | sprintf (buffer, " (LIB64)"); break; | |
632 | default: | |
633 | sprintf (buffer, _("<unknown mask flags>")); break; | |
634 | } | |
635 | ||
4bb7a87e | 636 | cpu_subtype &= ~ BFD_MACH_O_CPU_SUBTYPE_MASK; |
c6643fcc | 637 | |
4bb7a87e | 638 | switch (cpu_type) |
c6643fcc NC |
639 | { |
640 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
641 | case BFD_MACH_O_CPU_TYPE_I386: | |
4bb7a87e | 642 | switch (cpu_subtype) |
c6643fcc NC |
643 | { |
644 | case BFD_MACH_O_CPU_SUBTYPE_X86_ALL: | |
645 | return strcat (buffer, " (X86_ALL)"); | |
646 | default: | |
647 | break; | |
648 | } | |
649 | break; | |
4b24dd1a | 650 | |
c6643fcc | 651 | case BFD_MACH_O_CPU_TYPE_ARM: |
4bb7a87e | 652 | switch (cpu_subtype) |
c6643fcc NC |
653 | { |
654 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
655 | return strcat (buffer, " (ARM_ALL)"); | |
656 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
657 | return strcat (buffer, " (ARM_V4T)"); | |
658 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
659 | return strcat (buffer, " (ARM_V6)"); | |
660 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
661 | return strcat (buffer, " (ARM_V5TEJ)"); | |
662 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
663 | return strcat (buffer, " (ARM_XSCALE)"); | |
664 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
665 | return strcat (buffer, " (ARM_V7)"); | |
666 | default: | |
667 | break; | |
668 | } | |
669 | break; | |
4b24dd1a | 670 | |
c6643fcc | 671 | case BFD_MACH_O_CPU_TYPE_ARM64: |
4bb7a87e | 672 | switch (cpu_subtype) |
c6643fcc NC |
673 | { |
674 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL: | |
675 | return strcat (buffer, " (ARM64_ALL)"); | |
676 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8: | |
677 | return strcat (buffer, " (ARM64_V8)"); | |
678 | default: | |
679 | break; | |
680 | } | |
681 | break; | |
682 | ||
683 | default: | |
684 | break; | |
685 | } | |
686 | ||
4bb7a87e | 687 | if (cpu_subtype != 0) |
c6643fcc NC |
688 | return strcat (buffer, _(" (<unknown>)")); |
689 | ||
690 | return buffer; | |
691 | } | |
692 | ||
693 | bfd_boolean | |
694 | bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr) | |
695 | { | |
696 | FILE * file = (FILE *) ptr; | |
697 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
698 | ||
699 | fprintf (file, _(" MACH-O header:\n")); | |
700 | fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic); | |
701 | fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype, | |
702 | cputype (mdata->header.cputype)); | |
703 | fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype, | |
704 | cpusubtype (mdata->header.cputype, mdata->header.cpusubtype)); | |
705 | fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype); | |
706 | fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds); | |
707 | fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds); | |
708 | fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags); | |
709 | fprintf (file, _(" version: %x\n"), mdata->header.version); | |
4b24dd1a | 710 | |
c6643fcc NC |
711 | return TRUE; |
712 | } | |
713 | ||
3af9a47b NC |
714 | /* Copy any private info we understand from the input bfd |
715 | to the output bfd. */ | |
716 | ||
154a1ee5 | 717 | bfd_boolean |
967b2c53 | 718 | bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 719 | { |
c9ffd2ea TG |
720 | bfd_mach_o_data_struct *imdata; |
721 | bfd_mach_o_data_struct *omdata; | |
722 | bfd_mach_o_load_command *icmd; | |
723 | ||
154a1ee5 TG |
724 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
725 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
726 | return TRUE; | |
727 | ||
3af9a47b NC |
728 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
729 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
730 | ||
c9ffd2ea TG |
731 | imdata = bfd_mach_o_get_data (ibfd); |
732 | omdata = bfd_mach_o_get_data (obfd); | |
733 | ||
734 | /* Copy header flags. */ | |
735 | omdata->header.flags = imdata->header.flags; | |
736 | ||
c6643fcc NC |
737 | /* PR 23299. Copy the cputype. */ |
738 | if (imdata->header.cputype != omdata->header.cputype) | |
739 | { | |
740 | if (omdata->header.cputype == 0) | |
741 | omdata->header.cputype = imdata->header.cputype; | |
742 | else if (imdata->header.cputype != 0) | |
743 | /* Urg - what has happened ? */ | |
744 | _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"), | |
745 | (long) imdata->header.cputype, | |
746 | (long) omdata->header.cputype); | |
747 | } | |
748 | ||
749 | /* Copy the cpusubtype. */ | |
750 | omdata->header.cpusubtype = imdata->header.cpusubtype; | |
4b24dd1a | 751 | |
c9ffd2ea TG |
752 | /* Copy commands. */ |
753 | for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next) | |
754 | { | |
755 | bfd_mach_o_load_command *ocmd; | |
756 | ||
757 | switch (icmd->type) | |
758 | { | |
759 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
760 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
761 | case BFD_MACH_O_LC_DYLD_INFO: | |
762 | /* Command is copied. */ | |
763 | ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command)); | |
764 | if (ocmd == NULL) | |
765 | return FALSE; | |
766 | ||
767 | /* Copy common fields. */ | |
768 | ocmd->type = icmd->type; | |
769 | ocmd->type_required = icmd->type_required; | |
770 | ocmd->offset = 0; | |
771 | ocmd->len = icmd->len; | |
772 | break; | |
773 | ||
774 | default: | |
775 | /* Command is not copied. */ | |
776 | continue; | |
777 | break; | |
778 | } | |
779 | ||
780 | switch (icmd->type) | |
781 | { | |
782 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
783 | { | |
784 | bfd_mach_o_dylib_command *idy = &icmd->command.dylib; | |
785 | bfd_mach_o_dylib_command *ody = &ocmd->command.dylib; | |
786 | ||
787 | ody->name_offset = idy->name_offset; | |
788 | ody->timestamp = idy->timestamp; | |
789 | ody->current_version = idy->current_version; | |
790 | ody->compatibility_version = idy->compatibility_version; | |
791 | ody->name_str = idy->name_str; | |
792 | } | |
793 | break; | |
794 | ||
795 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
796 | { | |
797 | bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker; | |
798 | bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker; | |
799 | ||
800 | ody->name_offset = idy->name_offset; | |
801 | ody->name_str = idy->name_str; | |
802 | } | |
803 | break; | |
804 | ||
805 | case BFD_MACH_O_LC_DYLD_INFO: | |
806 | { | |
807 | bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info; | |
808 | bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info; | |
809 | ||
810 | if (bfd_mach_o_read_dyld_content (ibfd, idy)) | |
811 | { | |
812 | ody->rebase_size = idy->rebase_size; | |
813 | ody->rebase_content = idy->rebase_content; | |
814 | ||
815 | ody->bind_size = idy->bind_size; | |
816 | ody->bind_content = idy->bind_content; | |
817 | ||
818 | ody->weak_bind_size = idy->weak_bind_size; | |
819 | ody->weak_bind_content = idy->weak_bind_content; | |
820 | ||
821 | ody->lazy_bind_size = idy->lazy_bind_size; | |
822 | ody->lazy_bind_content = idy->lazy_bind_content; | |
823 | ||
824 | ody->export_size = idy->export_size; | |
825 | ody->export_content = idy->export_content; | |
826 | } | |
86eafac0 NC |
827 | /* PR 17512L: file: 730e492d. */ |
828 | else | |
829 | { | |
1b786873 L |
830 | ody->rebase_size = |
831 | ody->bind_size = | |
832 | ody->weak_bind_size = | |
833 | ody->lazy_bind_size = | |
86eafac0 | 834 | ody->export_size = 0; |
1b786873 L |
835 | ody->rebase_content = |
836 | ody->bind_content = | |
837 | ody->weak_bind_content = | |
838 | ody->lazy_bind_content = | |
86eafac0 NC |
839 | ody->export_content = NULL; |
840 | } | |
c9ffd2ea TG |
841 | } |
842 | break; | |
843 | ||
844 | default: | |
845 | /* That command should be handled. */ | |
846 | abort (); | |
847 | } | |
848 | ||
849 | /* Insert command. */ | |
850 | bfd_mach_o_append_command (obfd, ocmd); | |
851 | } | |
154a1ee5 | 852 | |
b34976b6 | 853 | return TRUE; |
3af9a47b NC |
854 | } |
855 | ||
0c9ef0f0 TG |
856 | /* This allows us to set up to 32 bits of flags (unless we invent some |
857 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
858 | without error checking - just overwrite. */ | |
68ffbac6 | 859 | |
0c9ef0f0 TG |
860 | bfd_boolean |
861 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) | |
862 | { | |
863 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
864 | ||
865 | if (!mdata) | |
866 | return FALSE; | |
867 | ||
868 | mdata->header.flags = flags; | |
869 | return TRUE; | |
870 | } | |
871 | ||
046b007d | 872 | /* Count the total number of symbols. */ |
154a1ee5 | 873 | |
3af9a47b | 874 | static long |
116c20d2 | 875 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 876 | { |
046b007d | 877 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 878 | |
046b007d TG |
879 | if (mdata->symtab == NULL) |
880 | return 0; | |
881 | return mdata->symtab->nsyms; | |
3af9a47b NC |
882 | } |
883 | ||
154a1ee5 | 884 | long |
116c20d2 | 885 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
886 | { |
887 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
888 | ||
3af9a47b NC |
889 | return ((nsyms + 1) * sizeof (asymbol *)); |
890 | } | |
891 | ||
154a1ee5 | 892 | long |
116c20d2 | 893 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 894 | { |
046b007d | 895 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 896 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
897 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
898 | unsigned long j; | |
3af9a47b NC |
899 | |
900 | if (nsyms < 0) | |
901 | return nsyms; | |
902 | ||
092d27ff TG |
903 | if (nsyms == 0) |
904 | { | |
905 | /* Do not try to read symbols if there are none. */ | |
906 | alocation[0] = NULL; | |
907 | return 0; | |
908 | } | |
909 | ||
afbb9e17 | 910 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 911 | { |
4eca0228 | 912 | _bfd_error_handler |
07d6d2b8 | 913 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); |
046b007d TG |
914 | return 0; |
915 | } | |
3af9a47b | 916 | |
046b007d | 917 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 918 | |
046b007d TG |
919 | for (j = 0; j < sym->nsyms; j++) |
920 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 921 | |
046b007d | 922 | alocation[j] = NULL; |
a95a4550 | 923 | |
3af9a47b NC |
924 | return nsyms; |
925 | } | |
926 | ||
aeefa1c9 TG |
927 | /* Create synthetic symbols for indirect symbols. */ |
928 | ||
b2b62060 TG |
929 | long |
930 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
07d6d2b8 AM |
931 | long symcount ATTRIBUTE_UNUSED, |
932 | asymbol **syms ATTRIBUTE_UNUSED, | |
933 | long dynsymcount ATTRIBUTE_UNUSED, | |
934 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
935 | asymbol **ret) | |
b2b62060 TG |
936 | { |
937 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
938 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
939 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
940 | asymbol *s; | |
896ca098 NC |
941 | char * s_start; |
942 | char * s_end; | |
b2b62060 TG |
943 | unsigned long count, i, j, n; |
944 | size_t size; | |
945 | char *names; | |
946 | char *nul_name; | |
896ca098 | 947 | const char stub [] = "$stub"; |
b2b62060 TG |
948 | |
949 | *ret = NULL; | |
950 | ||
aeefa1c9 | 951 | /* Stop now if no symbols or no indirect symbols. */ |
896ca098 NC |
952 | if (dysymtab == NULL || dysymtab->nindirectsyms == 0 |
953 | || symtab == NULL || symtab->symbols == NULL) | |
b2b62060 TG |
954 | return 0; |
955 | ||
aeefa1c9 TG |
956 | /* We need to allocate a bfd symbol for every indirect symbol and to |
957 | allocate the memory for its name. */ | |
b2b62060 TG |
958 | count = dysymtab->nindirectsyms; |
959 | size = count * sizeof (asymbol) + 1; | |
960 | ||
961 | for (j = 0; j < count; j++) | |
962 | { | |
896ca098 | 963 | const char * strng; |
b2b62060 | 964 | unsigned int isym = dysymtab->indirect_syms[j]; |
aeefa1c9 TG |
965 | |
966 | /* Some indirect symbols are anonymous. */ | |
896ca098 NC |
967 | if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name)) |
968 | /* PR 17512: file: f5b8eeba. */ | |
969 | size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub); | |
b2b62060 TG |
970 | } |
971 | ||
896ca098 NC |
972 | s_start = bfd_malloc (size); |
973 | s = *ret = (asymbol *) s_start; | |
b2b62060 TG |
974 | if (s == NULL) |
975 | return -1; | |
976 | names = (char *) (s + count); | |
977 | nul_name = names; | |
978 | *names++ = 0; | |
896ca098 | 979 | s_end = s_start + size; |
68ffbac6 | 980 | |
b2b62060 TG |
981 | n = 0; |
982 | for (i = 0; i < mdata->nsects; i++) | |
983 | { | |
984 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 985 | unsigned int first, last; |
b2b62060 TG |
986 | bfd_vma addr; |
987 | bfd_vma entry_size; | |
68ffbac6 | 988 | |
b2b62060 | 989 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
07d6d2b8 AM |
990 | { |
991 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
992 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
993 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
994 | /* Only these sections have indirect symbols. */ | |
995 | first = sec->reserved1; | |
996 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
997 | addr = sec->addr; | |
998 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
896ca098 NC |
999 | |
1000 | /* PR 17512: file: 08e15eec. */ | |
1001 | if (first >= count || last >= count || first > last) | |
1002 | goto fail; | |
1003 | ||
07d6d2b8 AM |
1004 | for (j = first; j < last; j++) |
1005 | { | |
1006 | unsigned int isym = dysymtab->indirect_syms[j]; | |
b2b62060 | 1007 | |
896ca098 NC |
1008 | /* PR 17512: file: 04d64d9b. */ |
1009 | if (((char *) s) + sizeof (* s) > s_end) | |
1010 | goto fail; | |
1011 | ||
07d6d2b8 AM |
1012 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
1013 | s->section = sec->bfdsection; | |
1014 | s->value = addr - sec->addr; | |
1015 | s->udata.p = NULL; | |
68ffbac6 | 1016 | |
07d6d2b8 AM |
1017 | if (isym < symtab->nsyms |
1018 | && symtab->symbols[isym].symbol.name) | |
1019 | { | |
1020 | const char *sym = symtab->symbols[isym].symbol.name; | |
1021 | size_t len; | |
b2b62060 | 1022 | |
07d6d2b8 AM |
1023 | s->name = names; |
1024 | len = strlen (sym); | |
896ca098 NC |
1025 | /* PR 17512: file: 47dfd4d2. */ |
1026 | if (names + len >= s_end) | |
1027 | goto fail; | |
07d6d2b8 AM |
1028 | memcpy (names, sym, len); |
1029 | names += len; | |
896ca098 NC |
1030 | /* PR 17512: file: 18f340a4. */ |
1031 | if (names + sizeof (stub) >= s_end) | |
1032 | goto fail; | |
07d6d2b8 AM |
1033 | memcpy (names, stub, sizeof (stub)); |
1034 | names += sizeof (stub); | |
1035 | } | |
1036 | else | |
1037 | s->name = nul_name; | |
1038 | ||
1039 | addr += entry_size; | |
1040 | s++; | |
1041 | n++; | |
1042 | } | |
1043 | break; | |
1044 | default: | |
1045 | break; | |
1046 | } | |
b2b62060 TG |
1047 | } |
1048 | ||
1049 | return n; | |
896ca098 NC |
1050 | |
1051 | fail: | |
1052 | free (s_start); | |
1053 | * ret = NULL; | |
1054 | return -1; | |
b2b62060 TG |
1055 | } |
1056 | ||
154a1ee5 | 1057 | void |
116c20d2 NC |
1058 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
1059 | asymbol *symbol, | |
1060 | symbol_info *ret) | |
3af9a47b NC |
1061 | { |
1062 | bfd_symbol_info (symbol, ret); | |
1063 | } | |
1064 | ||
154a1ee5 | 1065 | void |
116c20d2 | 1066 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 1067 | void * afile, |
116c20d2 NC |
1068 | asymbol *symbol, |
1069 | bfd_print_symbol_type how) | |
3af9a47b NC |
1070 | { |
1071 | FILE *file = (FILE *) afile; | |
15e1c58a | 1072 | const char *name; |
92bc0e80 | 1073 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
1074 | |
1075 | switch (how) | |
1076 | { | |
1077 | case bfd_print_symbol_name: | |
1078 | fprintf (file, "%s", symbol->name); | |
1079 | break; | |
1080 | default: | |
91d6fa6a | 1081 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
1082 | if (asym->n_type & BFD_MACH_O_N_STAB) |
1083 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 1084 | else |
92bc0e80 | 1085 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
1086 | { |
1087 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
1088 | if (symbol->value == 0) |
1089 | name = "UND"; | |
1090 | else | |
1091 | name = "COM"; | |
15e1c58a TG |
1092 | break; |
1093 | case BFD_MACH_O_N_ABS: | |
1094 | name = "ABS"; | |
1095 | break; | |
1096 | case BFD_MACH_O_N_INDR: | |
1097 | name = "INDR"; | |
1098 | break; | |
1099 | case BFD_MACH_O_N_PBUD: | |
1100 | name = "PBUD"; | |
1101 | break; | |
1102 | case BFD_MACH_O_N_SECT: | |
1103 | name = "SECT"; | |
1104 | break; | |
1105 | default: | |
1106 | name = "???"; | |
1107 | break; | |
1108 | } | |
1109 | if (name == NULL) | |
1110 | name = ""; | |
92bc0e80 | 1111 | fprintf (file, " %02x %-6s %02x %04x", |
07d6d2b8 | 1112 | asym->n_type, name, asym->n_sect, asym->n_desc); |
92bc0e80 TG |
1113 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 |
1114 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 1115 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 1116 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
1117 | } |
1118 | } | |
1119 | ||
1120 | static void | |
116c20d2 | 1121 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 1122 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
1123 | enum bfd_architecture *type, |
1124 | unsigned long *subtype) | |
3af9a47b NC |
1125 | { |
1126 | *subtype = bfd_arch_unknown; | |
1127 | ||
1128 | switch (mtype) | |
1129 | { | |
0b2de107 TG |
1130 | case BFD_MACH_O_CPU_TYPE_VAX: |
1131 | *type = bfd_arch_vax; | |
1132 | break; | |
1133 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1134 | *type = bfd_arch_m68k; | |
1135 | break; | |
1e8a024a TG |
1136 | case BFD_MACH_O_CPU_TYPE_I386: |
1137 | *type = bfd_arch_i386; | |
1138 | *subtype = bfd_mach_i386_i386; | |
1139 | break; | |
1140 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
1141 | *type = bfd_arch_i386; | |
1142 | *subtype = bfd_mach_x86_64; | |
1143 | break; | |
0b2de107 TG |
1144 | case BFD_MACH_O_CPU_TYPE_MIPS: |
1145 | *type = bfd_arch_mips; | |
1146 | break; | |
1147 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
1148 | *type = bfd_arch_m98k; | |
1149 | break; | |
1150 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
1151 | *type = bfd_arch_hppa; | |
1152 | break; | |
1153 | case BFD_MACH_O_CPU_TYPE_ARM: | |
1154 | *type = bfd_arch_arm; | |
1155 | switch (msubtype) | |
07d6d2b8 AM |
1156 | { |
1157 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
1158 | *subtype = bfd_mach_arm_4T; | |
1159 | break; | |
1160 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
1161 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
1162 | break; | |
1163 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
1164 | *subtype = bfd_mach_arm_5TE; | |
1165 | break; | |
1166 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
1167 | *subtype = bfd_mach_arm_XScale; | |
1168 | break; | |
1169 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
1170 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
1171 | break; | |
1172 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
1173 | default: | |
1174 | break; | |
1175 | } | |
0b2de107 | 1176 | break; |
1e8a024a TG |
1177 | case BFD_MACH_O_CPU_TYPE_SPARC: |
1178 | *type = bfd_arch_sparc; | |
1179 | *subtype = bfd_mach_sparc; | |
1180 | break; | |
0b2de107 TG |
1181 | case BFD_MACH_O_CPU_TYPE_ALPHA: |
1182 | *type = bfd_arch_alpha; | |
1183 | break; | |
1e8a024a TG |
1184 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
1185 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1186 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
1187 | break; |
1188 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
1189 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1190 | *subtype = bfd_mach_ppc64; |
1e8a024a | 1191 | break; |
d8028530 TG |
1192 | case BFD_MACH_O_CPU_TYPE_ARM64: |
1193 | *type = bfd_arch_aarch64; | |
1194 | *subtype = bfd_mach_aarch64; | |
1195 | break; | |
3af9a47b | 1196 | default: |
1e8a024a TG |
1197 | *type = bfd_arch_unknown; |
1198 | break; | |
3af9a47b NC |
1199 | } |
1200 | } | |
a95a4550 | 1201 | |
c9ffd2ea TG |
1202 | /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the |
1203 | number of bytes written or -1 in case of error. */ | |
1204 | ||
1205 | static int | |
1206 | bfd_mach_o_pad4 (bfd *abfd, unsigned int len) | |
1207 | { | |
1208 | if (len % 4 != 0) | |
1209 | { | |
1210 | char pad[4] = {0,0,0,0}; | |
1211 | unsigned int padlen = 4 - (len % 4); | |
1212 | ||
1213 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1214 | return -1; | |
1215 | ||
1216 | return padlen; | |
1217 | } | |
1218 | else | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | /* Likewise, but for a command. */ | |
1223 | ||
1224 | static int | |
1225 | bfd_mach_o_pad_command (bfd *abfd, unsigned int len) | |
1226 | { | |
1227 | unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
1228 | ||
1229 | if (len % align != 0) | |
1230 | { | |
1231 | char pad[8] = {0}; | |
1232 | unsigned int padlen = align - (len % align); | |
1233 | ||
1234 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1235 | return -1; | |
1236 | ||
1237 | return padlen; | |
1238 | } | |
1239 | else | |
1240 | return 0; | |
1241 | } | |
1242 | ||
154a1ee5 | 1243 | static bfd_boolean |
116c20d2 NC |
1244 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
1245 | { | |
46d1c23b | 1246 | struct mach_o_header_external raw; |
1e8a024a TG |
1247 | unsigned int size; |
1248 | ||
c2f09c75 | 1249 | size = mach_o_wide_p (header) ? |
154a1ee5 | 1250 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 1251 | |
46d1c23b TG |
1252 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
1253 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
1254 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
1255 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
1256 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
1257 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
1258 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 1259 | |
c2f09c75 | 1260 | if (mach_o_wide_p (header)) |
46d1c23b | 1261 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 1262 | |
c2f09c75 | 1263 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1264 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 1265 | return FALSE; |
116c20d2 | 1266 | |
154a1ee5 | 1267 | return TRUE; |
116c20d2 NC |
1268 | } |
1269 | ||
452216ab | 1270 | static bfd_boolean |
ab273af8 | 1271 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
1272 | { |
1273 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1274 | unsigned int i; | |
46d1c23b | 1275 | struct mach_o_thread_command_external raw; |
92bc0e80 | 1276 | unsigned int offset; |
116c20d2 NC |
1277 | |
1278 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1279 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1280 | ||
c9ffd2ea | 1281 | offset = BFD_MACH_O_LC_SIZE; |
116c20d2 NC |
1282 | for (i = 0; i < cmd->nflavours; i++) |
1283 | { | |
1284 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b | 1285 | BFD_ASSERT (cmd->flavours[i].offset == |
07d6d2b8 | 1286 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); |
116c20d2 | 1287 | |
46d1c23b TG |
1288 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
1289 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 1290 | |
c2f09c75 | 1291 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 1292 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 1293 | return FALSE; |
116c20d2 | 1294 | |
46d1c23b | 1295 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
1296 | } |
1297 | ||
452216ab | 1298 | return TRUE; |
116c20d2 NC |
1299 | } |
1300 | ||
c9ffd2ea TG |
1301 | static bfd_boolean |
1302 | bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command) | |
1303 | { | |
1304 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
1305 | struct mach_o_str_command_external raw; | |
1306 | unsigned int namelen; | |
1307 | ||
1308 | bfd_h_put_32 (abfd, cmd->name_offset, raw.str); | |
1309 | ||
1310 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1311 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1312 | return FALSE; | |
1313 | ||
1314 | namelen = strlen (cmd->name_str) + 1; | |
1315 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1316 | return FALSE; | |
1317 | ||
1318 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1319 | return FALSE; | |
1320 | ||
1321 | return TRUE; | |
1322 | } | |
1323 | ||
1324 | static bfd_boolean | |
1325 | bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command) | |
1326 | { | |
1327 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
1328 | struct mach_o_dylib_command_external raw; | |
1329 | unsigned int namelen; | |
1330 | ||
1331 | bfd_h_put_32 (abfd, cmd->name_offset, raw.name); | |
1332 | bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp); | |
1333 | bfd_h_put_32 (abfd, cmd->current_version, raw.current_version); | |
1334 | bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version); | |
1335 | ||
1336 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1337 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1338 | return FALSE; | |
1339 | ||
1340 | namelen = strlen (cmd->name_str) + 1; | |
1341 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1342 | return FALSE; | |
1343 | ||
1344 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1345 | return FALSE; | |
1346 | ||
1347 | return TRUE; | |
1348 | } | |
1349 | ||
1350 | static bfd_boolean | |
1351 | bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command) | |
1352 | { | |
1353 | bfd_mach_o_main_command *cmd = &command->command.main; | |
1354 | struct mach_o_entry_point_command_external raw; | |
1355 | ||
1356 | bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff); | |
1357 | bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize); | |
1358 | ||
1359 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1360 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1361 | return FALSE; | |
1362 | ||
1363 | return TRUE; | |
1364 | } | |
1365 | ||
1366 | static bfd_boolean | |
1367 | bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) | |
1368 | { | |
1369 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
1370 | struct mach_o_dyld_info_command_external raw; | |
1371 | ||
1372 | bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off); | |
1373 | bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size); | |
1374 | bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off); | |
1375 | bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size); | |
1376 | bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off); | |
1377 | bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size); | |
1378 | bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off); | |
1379 | bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size); | |
1380 | bfd_h_put_32 (abfd, cmd->export_off, raw.export_off); | |
1381 | bfd_h_put_32 (abfd, cmd->export_size, raw.export_size); | |
1382 | ||
1383 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1384 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1385 | return FALSE; | |
1386 | ||
1387 | if (cmd->rebase_size != 0) | |
1388 | if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0 | |
1389 | || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) != | |
1390 | cmd->rebase_size)) | |
1391 | return FALSE; | |
1392 | ||
1393 | if (cmd->bind_size != 0) | |
1394 | if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0 | |
1395 | || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) != | |
1396 | cmd->bind_size)) | |
1397 | return FALSE; | |
1398 | ||
1399 | if (cmd->weak_bind_size != 0) | |
1400 | if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0 | |
1401 | || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) != | |
1402 | cmd->weak_bind_size)) | |
1403 | return FALSE; | |
1404 | ||
1405 | if (cmd->lazy_bind_size != 0) | |
1406 | if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0 | |
1407 | || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) != | |
1408 | cmd->lazy_bind_size)) | |
1409 | return FALSE; | |
1410 | ||
1411 | if (cmd->export_size != 0) | |
1412 | if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0 | |
1413 | || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) != | |
1414 | cmd->export_size)) | |
1415 | return FALSE; | |
1416 | ||
1417 | return TRUE; | |
1418 | } | |
1419 | ||
92bc0e80 TG |
1420 | long |
1421 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 1422 | asection *asect) |
92bc0e80 | 1423 | { |
242a1159 | 1424 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
1425 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
1426 | { | |
1427 | bfd_set_error (bfd_error_file_too_big); | |
1428 | return -1; | |
1429 | } | |
242a1159 | 1430 | #endif |
7a6e0d89 | 1431 | return (asect->reloc_count + 1) * sizeof (arelent *); |
92bc0e80 TG |
1432 | } |
1433 | ||
19765f52 IS |
1434 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1435 | of the fields in the relocation information vary per target endian-ness. */ | |
1436 | ||
bcb51645 | 1437 | void |
19765f52 | 1438 | bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel, |
c6643fcc | 1439 | unsigned char *fields) |
19765f52 IS |
1440 | { |
1441 | unsigned char info = fields[3]; | |
1442 | ||
1443 | if (bfd_big_endian (abfd)) | |
1444 | { | |
1445 | rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2]; | |
1446 | rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1447 | rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0; | |
68ffbac6 | 1448 | rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT) |
19765f52 IS |
1449 | & BFD_MACH_O_LENGTH_MASK; |
1450 | rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0; | |
1451 | } | |
1452 | else | |
1453 | { | |
1454 | rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0]; | |
1455 | rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1456 | rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0; | |
68ffbac6 | 1457 | rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT) |
19765f52 IS |
1458 | & BFD_MACH_O_LENGTH_MASK; |
1459 | rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0; | |
1460 | } | |
1461 | } | |
1462 | ||
bcb51645 TG |
1463 | /* Set syms_ptr_ptr and addend of RES. */ |
1464 | ||
1465 | bfd_boolean | |
1466 | bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd, | |
1467 | bfd_mach_o_reloc_info *reloc, | |
1468 | arelent *res, asymbol **syms) | |
92bc0e80 | 1469 | { |
046b007d | 1470 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bcb51645 | 1471 | unsigned int num; |
b32e07d7 TG |
1472 | asymbol **sym; |
1473 | ||
bcb51645 TG |
1474 | /* Non-scattered relocation. */ |
1475 | reloc->r_scattered = 0; | |
1476 | res->addend = 0; | |
1477 | ||
1478 | num = reloc->r_value; | |
1479 | ||
1480 | if (reloc->r_extern) | |
1481 | { | |
1482 | /* PR 17512: file: 8396-1185-0.004. */ | |
1483 | if (num >= (unsigned) bfd_mach_o_count_symbols (abfd)) | |
1484 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1485 | else if (syms == NULL) | |
1486 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1487 | else | |
1488 | /* An external symbol number. */ | |
1489 | sym = syms + num; | |
1490 | } | |
1491 | else if (num == 0x00ffffff || num == 0) | |
1492 | { | |
1493 | /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this | |
1494 | is generic code, we don't know wether this is really a PAIR. | |
1495 | This value is almost certainly not a valid section number, hence | |
1496 | this specific case to avoid an assertion failure. | |
1497 | Target specific swap_reloc_in routine should adjust that. */ | |
1498 | sym = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1499 | } | |
1500 | else | |
1501 | { | |
1502 | /* PR 17512: file: 006-2964-0.004. */ | |
1503 | if (num > mdata->nsects) | |
a68aa5d3 NC |
1504 | { |
1505 | _bfd_error_handler (_("\ | |
1506 | malformed mach-o reloc: section index is greater than the number of sections")); | |
1507 | return FALSE; | |
1508 | } | |
bcb51645 TG |
1509 | |
1510 | /* A section number. */ | |
1511 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1512 | /* For a symbol defined in section S, the addend (stored in the | |
1513 | binary) contains the address of the section. To comply with | |
1514 | bfd convention, subtract the section address. | |
1515 | Use the address from the header, so that the user can modify | |
07d6d2b8 | 1516 | the vma of the section. */ |
bcb51645 TG |
1517 | res->addend = -mdata->sections[num - 1]->addr; |
1518 | } | |
1519 | ||
1520 | /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset | |
1521 | in the lower 16bits of the address value. So we have to find the | |
1522 | 'symbol' from the preceding reloc. We do this even though the | |
1523 | section symbol is probably not needed here, because NULL symbol | |
1524 | values cause an assert in generic BFD code. This must be done in | |
1525 | the PPC swap_reloc_in routine. */ | |
1526 | res->sym_ptr_ptr = sym; | |
1527 | ||
1528 | return TRUE; | |
1529 | } | |
1530 | ||
1531 | /* Do most of the work for canonicalize_relocs on RAW: create internal | |
1532 | representation RELOC and set most fields of RES using symbol table SYMS. | |
1533 | Each target still has to set the howto of RES and possibly adjust other | |
1534 | fields. | |
1535 | Previously the Mach-O hook point was simply swap_in, but some targets | |
1536 | (like arm64) don't follow the generic rules (symnum is a value for the | |
1537 | non-scattered relocation ADDEND). */ | |
1538 | ||
1539 | bfd_boolean | |
1540 | bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd, | |
1541 | struct mach_o_reloc_info_external *raw, | |
1542 | bfd_mach_o_reloc_info *reloc, | |
1543 | arelent *res, asymbol **syms) | |
1544 | { | |
1545 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1546 | bfd_vma addr; | |
1547 | ||
46d1c23b | 1548 | addr = bfd_get_32 (abfd, raw->r_address); |
19765f52 IS |
1549 | res->sym_ptr_ptr = NULL; |
1550 | res->addend = 0; | |
f4716ee2 | 1551 | |
b32e07d7 TG |
1552 | if (addr & BFD_MACH_O_SR_SCATTERED) |
1553 | { | |
1554 | unsigned int j; | |
19765f52 | 1555 | bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum); |
b32e07d7 | 1556 | |
19765f52 | 1557 | /* Scattered relocation, can't be extern. */ |
bcb51645 TG |
1558 | reloc->r_scattered = 1; |
1559 | reloc->r_extern = 0; | |
19765f52 IS |
1560 | |
1561 | /* Extract section and offset from r_value (symnum). */ | |
bcb51645 | 1562 | reloc->r_value = symnum; |
19765f52 IS |
1563 | /* FIXME: This breaks when a symbol in a reloc exactly follows the |
1564 | end of the data for the section (e.g. in a calculation of section | |
1565 | data length). At present, the symbol will end up associated with | |
1566 | the following section or, if it falls within alignment padding, as | |
1567 | null - which will assert later. */ | |
b32e07d7 | 1568 | for (j = 0; j < mdata->nsects; j++) |
07d6d2b8 AM |
1569 | { |
1570 | bfd_mach_o_section *sect = mdata->sections[j]; | |
1571 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
1572 | { | |
1573 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1574 | res->addend = symnum - sect->addr; | |
1575 | break; | |
1576 | } | |
1577 | } | |
19765f52 IS |
1578 | |
1579 | /* Extract the info and address fields from r_address. */ | |
bcb51645 TG |
1580 | reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
1581 | reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1582 | reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
1583 | reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr); | |
19765f52 | 1584 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); |
b32e07d7 TG |
1585 | } |
1586 | else | |
1587 | { | |
19765f52 | 1588 | /* Non-scattered relocation. */ |
bcb51645 TG |
1589 | reloc->r_scattered = 0; |
1590 | reloc->r_address = addr; | |
1591 | res->address = addr; | |
f4716ee2 | 1592 | |
19765f52 | 1593 | /* The value and info fields have to be extracted dependent on target |
07d6d2b8 | 1594 | endian-ness. */ |
bcb51645 | 1595 | bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum); |
19765f52 | 1596 | |
bcb51645 TG |
1597 | if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc, |
1598 | res, syms)) | |
1599 | return FALSE; | |
b32e07d7 | 1600 | } |
f4716ee2 TG |
1601 | |
1602 | /* We have set up a reloc with all the information present, so the swapper | |
1603 | can modify address, value and addend fields, if necessary, to convey | |
1604 | information in the generic BFD reloc that is mach-o specific. */ | |
19765f52 | 1605 | |
bcb51645 | 1606 | return TRUE; |
b32e07d7 TG |
1607 | } |
1608 | ||
1609 | static int | |
1610 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
07d6d2b8 AM |
1611 | unsigned long count, |
1612 | arelent *res, asymbol **syms) | |
b32e07d7 | 1613 | { |
bcb51645 | 1614 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
92bc0e80 | 1615 | unsigned long i; |
a68aa5d3 | 1616 | struct mach_o_reloc_info_external *native_relocs = NULL; |
a4425a57 | 1617 | size_t native_size; |
92bc0e80 | 1618 | |
92bc0e80 | 1619 | /* Allocate and read relocs. */ |
a4425a57 AM |
1620 | if (_bfd_mul_overflow (count, BFD_MACH_O_RELENT_SIZE, &native_size)) |
1621 | /* PR 17512: file: 09477b57. */ | |
a68aa5d3 | 1622 | goto err; |
64d29018 | 1623 | |
2bb3687b AM |
1624 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) |
1625 | return -1; | |
1626 | native_relocs = (struct mach_o_reloc_info_external *) | |
1627 | _bfd_malloc_and_read (abfd, native_size, native_size); | |
92bc0e80 TG |
1628 | if (native_relocs == NULL) |
1629 | return -1; | |
1630 | ||
b32e07d7 | 1631 | for (i = 0; i < count; i++) |
92bc0e80 | 1632 | { |
bcb51645 | 1633 | if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i], |
ca4cf9b9 | 1634 | &res[i], syms, res)) |
07d6d2b8 | 1635 | goto err; |
92bc0e80 | 1636 | } |
b32e07d7 TG |
1637 | free (native_relocs); |
1638 | return i; | |
a68aa5d3 | 1639 | |
b32e07d7 TG |
1640 | err: |
1641 | free (native_relocs); | |
a68aa5d3 NC |
1642 | if (bfd_get_error () == bfd_error_no_error) |
1643 | bfd_set_error (bfd_error_invalid_operation); | |
b32e07d7 TG |
1644 | return -1; |
1645 | } | |
1646 | ||
1647 | long | |
1648 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
07d6d2b8 | 1649 | arelent **rels, asymbol **syms) |
b32e07d7 TG |
1650 | { |
1651 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1652 | unsigned long i; | |
1653 | arelent *res; | |
1654 | ||
1655 | if (asect->reloc_count == 0) | |
1656 | return 0; | |
1657 | ||
1658 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1659 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 | 1660 | return 0; |
92bc0e80 | 1661 | |
dff55db0 | 1662 | if (asect->relocation == NULL) |
92bc0e80 | 1663 | { |
a4425a57 AM |
1664 | size_t amt; |
1665 | ||
1666 | if (_bfd_mul_overflow (asect->reloc_count, sizeof (arelent), &amt)) | |
64d29018 | 1667 | return -1; |
a4425a57 | 1668 | res = bfd_malloc (amt); |
dff55db0 | 1669 | if (res == NULL) |
07d6d2b8 | 1670 | return -1; |
dff55db0 TG |
1671 | |
1672 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
07d6d2b8 AM |
1673 | asect->reloc_count, res, syms) < 0) |
1674 | { | |
1675 | free (res); | |
1676 | return -1; | |
1677 | } | |
dff55db0 | 1678 | asect->relocation = res; |
92bc0e80 TG |
1679 | } |
1680 | ||
dff55db0 | 1681 | res = asect->relocation; |
92bc0e80 | 1682 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1683 | rels[i] = &res[i]; |
1684 | rels[i] = NULL; | |
92bc0e80 | 1685 | |
b32e07d7 TG |
1686 | return i; |
1687 | } | |
92bc0e80 | 1688 | |
b32e07d7 TG |
1689 | long |
1690 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1691 | { | |
1692 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1693 | |
b32e07d7 TG |
1694 | if (mdata->dysymtab == NULL) |
1695 | return 1; | |
dff55db0 | 1696 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1697 | * sizeof (arelent *); |
1698 | } | |
92bc0e80 | 1699 | |
b32e07d7 TG |
1700 | long |
1701 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
07d6d2b8 | 1702 | struct bfd_symbol **syms) |
b32e07d7 TG |
1703 | { |
1704 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1705 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1706 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1707 | unsigned long i; | |
1708 | arelent *res; | |
1709 | ||
1710 | if (dysymtab == NULL) | |
1711 | return 0; | |
1712 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1713 | return 0; | |
1714 | ||
1715 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1716 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 TG |
1717 | return 0; |
1718 | ||
dff55db0 | 1719 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1720 | { |
a4425a57 AM |
1721 | ufile_ptr filesize = bfd_get_file_size (abfd); |
1722 | size_t amt; | |
1723 | ||
1724 | if (filesize != 0) | |
1725 | { | |
1726 | if (dysymtab->extreloff > filesize | |
1727 | || dysymtab->nextrel > ((filesize - dysymtab->extreloff) | |
1728 | / BFD_MACH_O_RELENT_SIZE) | |
1729 | || dysymtab->locreloff > filesize | |
1730 | || dysymtab->nlocrel > ((filesize - dysymtab->locreloff) | |
1731 | / BFD_MACH_O_RELENT_SIZE)) | |
1732 | { | |
1733 | bfd_set_error (bfd_error_file_truncated); | |
1734 | return -1; | |
1735 | } | |
1736 | } | |
1737 | if (_bfd_mul_overflow (dysymtab->nextrel + dysymtab->nlocrel, | |
1738 | sizeof (arelent), &amt)) | |
1739 | { | |
1740 | bfd_set_error (bfd_error_file_too_big); | |
1741 | return -1; | |
1742 | } | |
64d29018 | 1743 | |
a4425a57 | 1744 | res = bfd_malloc (amt); |
dff55db0 | 1745 | if (res == NULL) |
07d6d2b8 | 1746 | return -1; |
b32e07d7 | 1747 | |
dff55db0 | 1748 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
07d6d2b8 AM |
1749 | dysymtab->nextrel, res, syms) < 0) |
1750 | { | |
1751 | free (res); | |
1752 | return -1; | |
1753 | } | |
dff55db0 TG |
1754 | |
1755 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
07d6d2b8 AM |
1756 | dysymtab->nlocrel, |
1757 | res + dysymtab->nextrel, syms) < 0) | |
1758 | { | |
1759 | free (res); | |
1760 | return -1; | |
1761 | } | |
dff55db0 TG |
1762 | |
1763 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1764 | } |
1765 | ||
dff55db0 | 1766 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1767 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1768 | rels[i] = &res[i]; | |
1769 | rels[i] = NULL; | |
92bc0e80 TG |
1770 | return i; |
1771 | } | |
1772 | ||
19765f52 IS |
1773 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1774 | of the fields in the relocation information vary per target endian-ness. */ | |
1775 | ||
1776 | static void | |
1777 | bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields, | |
c6643fcc | 1778 | bfd_mach_o_reloc_info *rel) |
19765f52 IS |
1779 | { |
1780 | unsigned char info = 0; | |
1781 | ||
1782 | BFD_ASSERT (rel->r_type <= 15); | |
1783 | BFD_ASSERT (rel->r_length <= 3); | |
1784 | ||
1785 | if (bfd_big_endian (abfd)) | |
1786 | { | |
1787 | fields[0] = (rel->r_value >> 16) & 0xff; | |
1788 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1789 | fields[2] = rel->r_value & 0xff; | |
1790 | info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT; | |
1791 | info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0; | |
1792 | info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT; | |
1793 | info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0; | |
1794 | } | |
1795 | else | |
1796 | { | |
1797 | fields[2] = (rel->r_value >> 16) & 0xff; | |
1798 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1799 | fields[0] = rel->r_value & 0xff; | |
1800 | info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT; | |
1801 | info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0; | |
1802 | info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT; | |
1803 | info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0; | |
1804 | } | |
1805 | fields[3] = info; | |
1806 | } | |
1807 | ||
92bc0e80 | 1808 | static bfd_boolean |
ab273af8 | 1809 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1810 | { |
92bc0e80 TG |
1811 | unsigned int i; |
1812 | arelent **entries; | |
1813 | asection *sec; | |
1814 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1815 | ||
1816 | sec = section->bfdsection; | |
1817 | if (sec->reloc_count == 0) | |
1818 | return TRUE; | |
1819 | ||
1820 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1821 | return TRUE; | |
1822 | ||
92bc0e80 TG |
1823 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
1824 | return FALSE; | |
1825 | ||
1826 | /* Convert and write. */ | |
1827 | entries = section->bfdsection->orelocation; | |
1828 | for (i = 0; i < section->nreloc; i++) | |
1829 | { | |
1830 | arelent *rel = entries[i]; | |
46d1c23b | 1831 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1832 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1833 | ||
1834 | /* Convert relocation to an intermediate representation. */ | |
1835 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
07d6d2b8 | 1836 | return FALSE; |
92bc0e80 TG |
1837 | |
1838 | /* Lower the relocation info. */ | |
1839 | if (pinfo->r_scattered) | |
07d6d2b8 AM |
1840 | { |
1841 | unsigned long v; | |
1842 | ||
1843 | v = BFD_MACH_O_SR_SCATTERED | |
1844 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1845 | | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length) | |
1846 | | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type) | |
1847 | | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address); | |
1848 | /* Note: scattered relocs have field in reverse order... */ | |
1849 | bfd_put_32 (abfd, v, raw.r_address); | |
1850 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
1851 | } | |
92bc0e80 | 1852 | else |
07d6d2b8 AM |
1853 | { |
1854 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); | |
1855 | bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum, | |
19765f52 | 1856 | pinfo); |
07d6d2b8 | 1857 | } |
92bc0e80 | 1858 | |
46d1c23b | 1859 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
07d6d2b8 AM |
1860 | != BFD_MACH_O_RELENT_SIZE) |
1861 | return FALSE; | |
92bc0e80 TG |
1862 | } |
1863 | return TRUE; | |
1864 | } | |
1865 | ||
452216ab | 1866 | static bfd_boolean |
ab273af8 | 1867 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1868 | { |
46d1c23b TG |
1869 | struct mach_o_section_32_external raw; |
1870 | ||
1871 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1872 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1873 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1874 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1875 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1876 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1877 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1878 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1879 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1880 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1881 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1882 | ||
1883 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1884 | != BFD_MACH_O_SECTION_SIZE) |
452216ab | 1885 | return FALSE; |
116c20d2 | 1886 | |
452216ab | 1887 | return TRUE; |
116c20d2 NC |
1888 | } |
1889 | ||
452216ab | 1890 | static bfd_boolean |
ab273af8 | 1891 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1892 | { |
46d1c23b TG |
1893 | struct mach_o_section_64_external raw; |
1894 | ||
1895 | memcpy (raw.sectname, section->sectname, 16); | |
1896 | memcpy (raw.segname, section->segname, 16); | |
1897 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1898 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1899 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1900 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1901 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1902 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1903 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1904 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1905 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1906 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1907 | ||
1908 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1909 | != BFD_MACH_O_SECTION_64_SIZE) |
452216ab | 1910 | return FALSE; |
116c20d2 | 1911 | |
452216ab | 1912 | return TRUE; |
1e8a024a TG |
1913 | } |
1914 | ||
452216ab | 1915 | static bfd_boolean |
ab273af8 | 1916 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1917 | { |
46d1c23b | 1918 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1919 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1920 | bfd_mach_o_section *sec; |
1e8a024a | 1921 | |
c2f09c75 TG |
1922 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1923 | ||
f1bde64c TG |
1924 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1925 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1926 | return FALSE; |
c2f09c75 | 1927 | |
46d1c23b TG |
1928 | memcpy (raw.segname, seg->segname, 16); |
1929 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1930 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1931 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1932 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1933 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1934 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1935 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1936 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
68ffbac6 | 1937 | |
46d1c23b TG |
1938 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1939 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1940 | return FALSE; |
1e8a024a | 1941 | |
f1bde64c | 1942 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1943 | if (!bfd_mach_o_write_section_32 (abfd, sec)) |
1944 | return FALSE; | |
1e8a024a | 1945 | |
452216ab | 1946 | return TRUE; |
116c20d2 NC |
1947 | } |
1948 | ||
452216ab | 1949 | static bfd_boolean |
ab273af8 | 1950 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1951 | { |
46d1c23b | 1952 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1953 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1954 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1955 | |
1956 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1957 | ||
f1bde64c TG |
1958 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1959 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1960 | return FALSE; |
c2f09c75 | 1961 | |
46d1c23b TG |
1962 | memcpy (raw.segname, seg->segname, 16); |
1963 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1964 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1965 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1966 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1967 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1968 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1969 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1970 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1971 | ||
1972 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1973 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1974 | return FALSE; |
c2f09c75 | 1975 | |
f1bde64c | 1976 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1977 | if (!bfd_mach_o_write_section_64 (abfd, sec)) |
1978 | return FALSE; | |
c2f09c75 | 1979 | |
452216ab | 1980 | return TRUE; |
1e8a024a TG |
1981 | } |
1982 | ||
c2f09c75 | 1983 | static bfd_boolean |
c9ffd2ea | 1984 | bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym) |
116c20d2 | 1985 | { |
046b007d | 1986 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1987 | unsigned long i; |
c2f09c75 | 1988 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
c2f09c75 TG |
1989 | struct bfd_strtab_hash *strtab; |
1990 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
c9ffd2ea | 1991 | int padlen; |
c2f09c75 TG |
1992 | |
1993 | /* Write the symbols first. */ | |
1994 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) | |
1995 | return FALSE; | |
1996 | ||
c2f09c75 TG |
1997 | strtab = _bfd_stringtab_init (); |
1998 | if (strtab == NULL) | |
1999 | return FALSE; | |
116c20d2 | 2000 | |
a4551119 TG |
2001 | if (sym->nsyms > 0) |
2002 | /* Although we don't strictly need to do this, for compatibility with | |
2003 | Darwin system tools, actually output an empty string for the index | |
2004 | 0 entry. */ | |
2005 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
2006 | ||
116c20d2 NC |
2007 | for (i = 0; i < sym->nsyms; i++) |
2008 | { | |
91d6fa6a | 2009 | bfd_size_type str_index; |
92bc0e80 | 2010 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
68ffbac6 | 2011 | |
92bc0e80 | 2012 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 2013 | /* An index of 0 always means the empty string. */ |
07d6d2b8 | 2014 | str_index = 0; |
c2f09c75 | 2015 | else |
07d6d2b8 AM |
2016 | { |
2017 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); | |
7f307238 | 2018 | |
07d6d2b8 AM |
2019 | if (str_index == (bfd_size_type) -1) |
2020 | goto err; | |
2021 | } | |
46d1c23b | 2022 | |
c2f09c75 | 2023 | if (wide) |
07d6d2b8 AM |
2024 | { |
2025 | struct mach_o_nlist_64_external raw; | |
2026 | ||
2027 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
2028 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
2029 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
2030 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2031 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
2032 | raw.n_value); | |
2033 | ||
2034 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2035 | goto err; | |
2036 | } | |
c2f09c75 | 2037 | else |
07d6d2b8 AM |
2038 | { |
2039 | struct mach_o_nlist_external raw; | |
116c20d2 | 2040 | |
07d6d2b8 AM |
2041 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
2042 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
2043 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
2044 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2045 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
2046 | raw.n_value); | |
46d1c23b | 2047 | |
07d6d2b8 AM |
2048 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
2049 | goto err; | |
2050 | } | |
116c20d2 | 2051 | } |
c2f09c75 | 2052 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
2053 | sym->stroff = mdata->filelen; |
2054 | mdata->filelen += sym->strsize; | |
116c20d2 | 2055 | |
c9ffd2ea | 2056 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
64d29018 | 2057 | goto err; |
c9ffd2ea | 2058 | |
535b785f | 2059 | if (!_bfd_stringtab_emit (abfd, strtab)) |
c2f09c75 | 2060 | goto err; |
116c20d2 | 2061 | |
c9ffd2ea TG |
2062 | /* Pad string table. */ |
2063 | padlen = bfd_mach_o_pad4 (abfd, sym->strsize); | |
2064 | if (padlen < 0) | |
2065 | return FALSE; | |
2066 | mdata->filelen += padlen; | |
2067 | sym->strsize += padlen; | |
116c20d2 | 2068 | |
c2f09c75 | 2069 | return TRUE; |
116c20d2 | 2070 | |
c2f09c75 TG |
2071 | err: |
2072 | _bfd_stringtab_free (strtab); | |
64d29018 | 2073 | sym->strsize = 0; |
c2f09c75 | 2074 | return FALSE; |
116c20d2 NC |
2075 | } |
2076 | ||
c9ffd2ea TG |
2077 | static bfd_boolean |
2078 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2079 | { | |
2080 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
2081 | struct mach_o_symtab_command_external raw; | |
2082 | ||
2083 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
2084 | ||
2085 | /* The command. */ | |
2086 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); | |
2087 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
2088 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
2089 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
2090 | ||
2091 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
2092 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2093 | return FALSE; | |
2094 | ||
2095 | return TRUE; | |
2096 | } | |
2097 | ||
2098 | /* Count the number of indirect symbols in the image. | |
2099 | Requires that the sections are in their final order. */ | |
2100 | ||
2101 | static unsigned int | |
2102 | bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2103 | { | |
2104 | unsigned int i; | |
2105 | unsigned int nisyms = 0; | |
2106 | ||
2107 | for (i = 0; i < mdata->nsects; ++i) | |
2108 | { | |
2109 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2110 | ||
2111 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2112 | { | |
2113 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2114 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2115 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2116 | nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2117 | break; | |
2118 | default: | |
2119 | break; | |
2120 | } | |
2121 | } | |
2122 | return nisyms; | |
2123 | } | |
2124 | ||
2125 | /* Create the dysymtab. */ | |
2126 | ||
2127 | static bfd_boolean | |
2128 | bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd) | |
2129 | { | |
2130 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2131 | ||
2132 | /* TODO: | |
2133 | We are not going to try and fill these in yet and, moreover, we are | |
2134 | going to bail if they are already set. */ | |
2135 | if (cmd->nmodtab != 0 | |
2136 | || cmd->ntoc != 0 | |
2137 | || cmd->nextrefsyms != 0) | |
2138 | { | |
4eca0228 AM |
2139 | _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet" |
2140 | " implemented for dysymtab commands.")); | |
c9ffd2ea TG |
2141 | return FALSE; |
2142 | } | |
2143 | ||
2144 | cmd->ilocalsym = 0; | |
2145 | ||
2146 | if (bfd_get_symcount (abfd) > 0) | |
2147 | { | |
2148 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2149 | unsigned long i; | |
2150 | ||
2151 | /* Count the number of each kind of symbol. */ | |
2152 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
2153 | { | |
2154 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2155 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
2156 | break; | |
2157 | } | |
2158 | cmd->nlocalsym = i; | |
2159 | cmd->iextdefsym = i; | |
2160 | for (; i < bfd_get_symcount (abfd); ++i) | |
2161 | { | |
2162 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2163 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
2164 | break; | |
2165 | } | |
2166 | cmd->nextdefsym = i - cmd->nlocalsym; | |
2167 | cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym; | |
2168 | cmd->nundefsym = bfd_get_symcount (abfd) | |
2169 | - cmd->nlocalsym | |
2170 | - cmd->nextdefsym; | |
2171 | } | |
2172 | else | |
2173 | { | |
2174 | cmd->nlocalsym = 0; | |
2175 | cmd->iextdefsym = 0; | |
2176 | cmd->nextdefsym = 0; | |
2177 | cmd->iundefsym = 0; | |
2178 | cmd->nundefsym = 0; | |
2179 | } | |
2180 | ||
2181 | cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata); | |
2182 | if (cmd->nindirectsyms > 0) | |
2183 | { | |
2184 | unsigned i; | |
2185 | unsigned n; | |
a4425a57 | 2186 | size_t amt; |
c9ffd2ea TG |
2187 | |
2188 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2189 | cmd->indirectsymoff = mdata->filelen; | |
a4425a57 | 2190 | if (_bfd_mul_overflow (cmd->nindirectsyms, 4, &amt)) |
64d29018 | 2191 | return FALSE; |
a4425a57 AM |
2192 | mdata->filelen += amt; |
2193 | ||
2194 | cmd->indirect_syms = bfd_zalloc (abfd, amt); | |
c9ffd2ea | 2195 | if (cmd->indirect_syms == NULL) |
07d6d2b8 | 2196 | return FALSE; |
c9ffd2ea TG |
2197 | |
2198 | n = 0; | |
2199 | for (i = 0; i < mdata->nsects; ++i) | |
2200 | { | |
2201 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2202 | ||
2203 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2204 | { | |
2205 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2206 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2207 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2208 | { | |
2209 | unsigned j, num; | |
2210 | bfd_mach_o_asymbol **isyms = sec->indirect_syms; | |
2211 | ||
2212 | num = bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2213 | if (isyms == NULL || num == 0) | |
2214 | break; | |
2215 | /* Record the starting index in the reserved1 field. */ | |
2216 | sec->reserved1 = n; | |
2217 | for (j = 0; j < num; j++, n++) | |
2218 | { | |
2219 | if (isyms[j] == NULL) | |
07d6d2b8 | 2220 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL; |
c9ffd2ea TG |
2221 | else if (isyms[j]->symbol.section == bfd_abs_section_ptr |
2222 | && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT)) | |
07d6d2b8 | 2223 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL |
c9ffd2ea TG |
2224 | | BFD_MACH_O_INDIRECT_SYM_ABS; |
2225 | else | |
07d6d2b8 | 2226 | cmd->indirect_syms[n] = isyms[j]->symbol.udata.i; |
c9ffd2ea TG |
2227 | } |
2228 | } | |
2229 | break; | |
2230 | default: | |
2231 | break; | |
2232 | } | |
2233 | } | |
2234 | } | |
2235 | ||
2236 | return TRUE; | |
2237 | } | |
2238 | ||
7f307238 IS |
2239 | /* Write a dysymtab command. |
2240 | TODO: Possibly coalesce writes of smaller objects. */ | |
2241 | ||
2242 | static bfd_boolean | |
2243 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2244 | { | |
2245 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
2246 | ||
2247 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
2248 | ||
2249 | if (cmd->nmodtab != 0) | |
2250 | { | |
2251 | unsigned int i; | |
2252 | ||
2253 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
2254 | return FALSE; | |
2255 | ||
2256 | for (i = 0; i < cmd->nmodtab; i++) | |
2257 | { | |
2258 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
2259 | unsigned int iinit; | |
2260 | unsigned int ninit; | |
2261 | ||
2262 | iinit = module->iinit & 0xffff; | |
2263 | iinit |= ((module->iterm & 0xffff) << 16); | |
2264 | ||
2265 | ninit = module->ninit & 0xffff; | |
2266 | ninit |= ((module->nterm & 0xffff) << 16); | |
2267 | ||
2268 | if (bfd_mach_o_wide_p (abfd)) | |
2269 | { | |
2270 | struct mach_o_dylib_module_64_external w; | |
2271 | ||
2272 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
2273 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
2274 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
2275 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
2276 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
2277 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
2278 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
2279 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
2280 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
2281 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
2282 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
2283 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
2284 | &w.objc_module_info_addr); | |
2285 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2286 | &w.objc_module_info_size); | |
2287 | ||
2288 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
2289 | return FALSE; | |
2290 | } | |
2291 | else | |
2292 | { | |
2293 | struct mach_o_dylib_module_external n; | |
2294 | ||
2295 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
2296 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
2297 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
2298 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
2299 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
2300 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
2301 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
2302 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
2303 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
2304 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
2305 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
2306 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
2307 | &n.objc_module_info_addr); | |
2308 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2309 | &n.objc_module_info_size); | |
2310 | ||
2311 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
2312 | return FALSE; | |
2313 | } | |
2314 | } | |
2315 | } | |
2316 | ||
2317 | if (cmd->ntoc != 0) | |
2318 | { | |
2319 | unsigned int i; | |
2320 | ||
2321 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
2322 | return FALSE; | |
2323 | ||
2324 | for (i = 0; i < cmd->ntoc; i++) | |
2325 | { | |
2326 | struct mach_o_dylib_table_of_contents_external raw; | |
2327 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
2328 | ||
2329 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
2330 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
2331 | ||
2332 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2333 | return FALSE; | |
2334 | } | |
2335 | } | |
68ffbac6 | 2336 | |
7f307238 IS |
2337 | if (cmd->nindirectsyms > 0) |
2338 | { | |
2339 | unsigned int i; | |
2340 | ||
2341 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
2342 | return FALSE; | |
2343 | ||
2344 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
2345 | { | |
2346 | unsigned char raw[4]; | |
2347 | ||
2348 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
2349 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2350 | return FALSE; | |
68ffbac6 | 2351 | } |
7f307238 IS |
2352 | } |
2353 | ||
2354 | if (cmd->nextrefsyms != 0) | |
2355 | { | |
2356 | unsigned int i; | |
2357 | ||
2358 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
2359 | return FALSE; | |
2360 | ||
2361 | for (i = 0; i < cmd->nextrefsyms; i++) | |
2362 | { | |
2363 | unsigned long v; | |
2364 | unsigned char raw[4]; | |
2365 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
2366 | ||
2367 | /* Fields isym and flags are written as bit-fields, thus we need | |
2368 | a specific processing for endianness. */ | |
2369 | ||
2370 | if (bfd_big_endian (abfd)) | |
2371 | { | |
2372 | v = ((ref->isym & 0xffffff) << 8); | |
2373 | v |= ref->flags & 0xff; | |
2374 | } | |
2375 | else | |
2376 | { | |
2377 | v = ref->isym & 0xffffff; | |
2378 | v |= ((ref->flags & 0xff) << 24); | |
2379 | } | |
2380 | ||
2381 | bfd_h_put_32 (abfd, v, raw); | |
2382 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2383 | return FALSE; | |
2384 | } | |
2385 | } | |
2386 | ||
2387 | /* The command. */ | |
2388 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
2389 | return FALSE; | |
2390 | else | |
2391 | { | |
2392 | struct mach_o_dysymtab_command_external raw; | |
2393 | ||
2394 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
2395 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
2396 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
2397 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
2398 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
2399 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
2400 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
2401 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
2402 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
2403 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
2404 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
2405 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
2406 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
2407 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
2408 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
2409 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
2410 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
2411 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
2412 | ||
2413 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2414 | return FALSE; | |
2415 | } | |
2416 | ||
2417 | return TRUE; | |
2418 | } | |
2419 | ||
2420 | static unsigned | |
b22161d6 | 2421 | bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s) |
7f307238 | 2422 | { |
b22161d6 | 2423 | unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE; |
68588f95 IS |
2424 | |
2425 | /* Just leave debug symbols where they are (pretend they are local, and | |
2426 | then they will just be sorted on position). */ | |
b22161d6 | 2427 | if (s->n_type & BFD_MACH_O_N_STAB) |
68588f95 IS |
2428 | return 0; |
2429 | ||
7f307238 | 2430 | /* Local (we should never see an undefined local AFAICT). */ |
b22161d6 | 2431 | if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
2432 | return 0; |
2433 | ||
2434 | /* Common symbols look like undefined externs. */ | |
68588f95 | 2435 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
2436 | return 2; |
2437 | ||
b22161d6 | 2438 | /* A defined non-local, non-debug symbol. */ |
7f307238 IS |
2439 | return 1; |
2440 | } | |
2441 | ||
2442 | static int | |
2443 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
2444 | { | |
2445 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
2446 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
2447 | unsigned int soa, sob; | |
2448 | ||
b22161d6 IS |
2449 | soa = bfd_mach_o_primary_symbol_sort_key (sa); |
2450 | sob = bfd_mach_o_primary_symbol_sort_key (sb); | |
7f307238 IS |
2451 | if (soa < sob) |
2452 | return -1; | |
2453 | ||
2454 | if (soa > sob) | |
2455 | return 1; | |
2456 | ||
68588f95 | 2457 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
2458 | if (soa == 0) |
2459 | { | |
2460 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
07d6d2b8 | 2461 | return -1; |
7f307238 | 2462 | if (sa->symbol.udata.i > sb->symbol.udata.i) |
07d6d2b8 | 2463 | return 1; |
b22161d6 IS |
2464 | |
2465 | /* This is probably an error. */ | |
7f307238 IS |
2466 | return 0; |
2467 | } | |
2468 | ||
b22161d6 IS |
2469 | /* The second sort key is name. */ |
2470 | return strcmp (sa->symbol.name, sb->symbol.name); | |
7f307238 IS |
2471 | } |
2472 | ||
2473 | /* Process the symbols. | |
2474 | ||
2475 | This should be OK for single-module files - but it is not likely to work | |
2476 | for multi-module shared libraries. | |
2477 | ||
2478 | (a) If the application has not filled in the relevant mach-o fields, make | |
2479 | an estimate. | |
2480 | ||
2481 | (b) Order them, like this: | |
2482 | ( i) local. | |
2483 | (unsorted) | |
2484 | ( ii) external defined | |
2485 | (by name) | |
b22161d6 | 2486 | (iii) external undefined/common |
7f307238 IS |
2487 | (by name) |
2488 | ( iv) common | |
2489 | (by name) | |
b22161d6 | 2490 | */ |
92bc0e80 TG |
2491 | |
2492 | static bfd_boolean | |
b22161d6 | 2493 | bfd_mach_o_mangle_symbols (bfd *abfd) |
92bc0e80 TG |
2494 | { |
2495 | unsigned long i; | |
2496 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2497 | ||
7f307238 IS |
2498 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
2499 | return TRUE; | |
2500 | ||
92bc0e80 TG |
2501 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
2502 | { | |
2503 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2504 | ||
b22161d6 IS |
2505 | /* We use this value, which is out-of-range as a symbol index, to signal |
2506 | that the mach-o-specific data are not filled in and need to be created | |
2507 | from the bfd values. It is much preferable for the application to do | |
2508 | this, since more meaningful diagnostics can be made that way. */ | |
2509 | ||
2510 | if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET) | |
07d6d2b8 AM |
2511 | { |
2512 | /* No symbol information has been set - therefore determine | |
2513 | it from the bfd symbol flags/info. */ | |
2514 | if (s->symbol.section == bfd_abs_section_ptr) | |
2515 | s->n_type = BFD_MACH_O_N_ABS; | |
2516 | else if (s->symbol.section == bfd_und_section_ptr) | |
2517 | { | |
2518 | s->n_type = BFD_MACH_O_N_UNDF; | |
2519 | if (s->symbol.flags & BSF_WEAK) | |
2520 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
2521 | /* mach-o automatically makes undefined symbols extern. */ | |
7f307238 | 2522 | s->n_type |= BFD_MACH_O_N_EXT; |
b22161d6 | 2523 | s->symbol.flags |= BSF_GLOBAL; |
07d6d2b8 AM |
2524 | } |
2525 | else if (s->symbol.section == bfd_com_section_ptr) | |
b22161d6 | 2526 | { |
07d6d2b8 AM |
2527 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; |
2528 | s->symbol.flags |= BSF_GLOBAL; | |
2529 | } | |
2530 | else | |
2531 | s->n_type = BFD_MACH_O_N_SECT; | |
07d6d2b8 | 2532 | } |
92bc0e80 | 2533 | |
ae19acf3 | 2534 | /* Update external symbol bit in case objcopy changed it. */ |
2535 | if (s->symbol.flags & BSF_GLOBAL) | |
2536 | s->n_type |= BFD_MACH_O_N_EXT; | |
2537 | else | |
2538 | s->n_type &= ~BFD_MACH_O_N_EXT; | |
2539 | ||
7f307238 | 2540 | /* Put the section index in, where required. */ |
68588f95 | 2541 | if ((s->symbol.section != bfd_abs_section_ptr |
07d6d2b8 AM |
2542 | && s->symbol.section != bfd_und_section_ptr |
2543 | && s->symbol.section != bfd_com_section_ptr) | |
2544 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 | |
2545 | && s->symbol.name == NULL)) | |
707e555b | 2546 | s->n_sect = s->symbol.section->output_section->target_index; |
92bc0e80 | 2547 | |
b22161d6 IS |
2548 | /* Number to preserve order for local and debug syms. */ |
2549 | s->symbol.udata.i = i; | |
7f307238 IS |
2550 | } |
2551 | ||
b22161d6 IS |
2552 | /* Sort the symbols. */ |
2553 | qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd), | |
2554 | sizeof (asymbol *), bfd_mach_o_cf_symbols); | |
7f307238 | 2555 | |
b22161d6 IS |
2556 | for (i = 0; i < bfd_get_symcount (abfd); ++i) |
2557 | { | |
2558 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2559 | s->symbol.udata.i = i; /* renumber. */ | |
7f307238 IS |
2560 | } |
2561 | ||
2562 | return TRUE; | |
2563 | } | |
2564 | ||
2565 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
2566 | Fill in the section number and other mach-o-specific data. */ | |
2567 | ||
2568 | static bfd_boolean | |
2569 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2570 | { | |
2571 | asection *sec; | |
2572 | unsigned target_index; | |
2573 | unsigned nsect; | |
1f4361a7 | 2574 | size_t amt; |
7f307238 IS |
2575 | |
2576 | nsect = bfd_count_sections (abfd); | |
68ffbac6 | 2577 | |
7f307238 IS |
2578 | /* Don't do it if it's already set - assume the application knows what it's |
2579 | doing. */ | |
2580 | if (mdata->nsects == nsect | |
2581 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
2582 | return TRUE; | |
2583 | ||
a1165289 NC |
2584 | /* We need to check that this can be done... */ |
2585 | if (nsect > 255) | |
2586 | { | |
4eca0228 AM |
2587 | _bfd_error_handler (_("mach-o: there are too many sections (%u)" |
2588 | " maximum is 255,\n"), nsect); | |
a1165289 NC |
2589 | return FALSE; |
2590 | } | |
2591 | ||
7f307238 | 2592 | mdata->nsects = nsect; |
a4425a57 | 2593 | amt = mdata->nsects * sizeof (bfd_mach_o_section *); |
1f4361a7 | 2594 | mdata->sections = bfd_alloc (abfd, amt); |
7f307238 IS |
2595 | if (mdata->sections == NULL) |
2596 | return FALSE; | |
2597 | ||
7f307238 | 2598 | /* Create Mach-O sections. |
68ffbac6 | 2599 | Section type, attribute and align should have been set when the |
7f307238 IS |
2600 | section was created - either read in or specified. */ |
2601 | target_index = 0; | |
2602 | for (sec = abfd->sections; sec; sec = sec->next) | |
2603 | { | |
fd361982 | 2604 | unsigned bfd_align = bfd_section_alignment (sec); |
7f307238 IS |
2605 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); |
2606 | ||
2607 | mdata->sections[target_index] = msect; | |
2608 | ||
fd361982 AM |
2609 | msect->addr = bfd_section_vma (sec); |
2610 | msect->size = bfd_section_size (sec); | |
7f307238 | 2611 | |
68ffbac6 | 2612 | /* Use the largest alignment set, in case it was bumped after the |
7f307238 IS |
2613 | section was created. */ |
2614 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
2615 | ||
2616 | msect->offset = 0; | |
2617 | sec->target_index = ++target_index; | |
92bc0e80 | 2618 | } |
7f307238 | 2619 | |
92bc0e80 TG |
2620 | return TRUE; |
2621 | } | |
2622 | ||
154a1ee5 | 2623 | bfd_boolean |
116c20d2 | 2624 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b | 2625 | { |
046b007d | 2626 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
2627 | bfd_mach_o_load_command *cmd; |
2628 | bfd_mach_o_symtab_command *symtab = NULL; | |
2629 | bfd_mach_o_dysymtab_command *dysymtab = NULL; | |
2630 | bfd_mach_o_segment_command *linkedit = NULL; | |
3af9a47b | 2631 | |
7f307238 | 2632 | /* Make the commands, if not already present. */ |
c9ffd2ea TG |
2633 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
2634 | return FALSE; | |
2635 | abfd->output_has_begun = TRUE; | |
92bc0e80 | 2636 | |
c9ffd2ea | 2637 | /* Write the header. */ |
154a1ee5 | 2638 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 2639 | return FALSE; |
3af9a47b | 2640 | |
c9ffd2ea TG |
2641 | /* First pass: allocate the linkedit segment. */ |
2642 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
2643 | switch (cmd->type) | |
2644 | { | |
2645 | case BFD_MACH_O_LC_SEGMENT_64: | |
2646 | case BFD_MACH_O_LC_SEGMENT: | |
2647 | if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0) | |
2648 | linkedit = &cmd->command.segment; | |
2649 | break; | |
2650 | case BFD_MACH_O_LC_SYMTAB: | |
2651 | symtab = &cmd->command.symtab; | |
2652 | break; | |
2653 | case BFD_MACH_O_LC_DYSYMTAB: | |
2654 | dysymtab = &cmd->command.dysymtab; | |
2655 | break; | |
2656 | case BFD_MACH_O_LC_DYLD_INFO: | |
2657 | { | |
2658 | bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info; | |
2659 | ||
2660 | if (di->rebase_size != 0) | |
2661 | { | |
2662 | di->rebase_off = mdata->filelen; | |
2663 | mdata->filelen += di->rebase_size; | |
2664 | } | |
2665 | if (di->bind_size != 0) | |
2666 | { | |
2667 | di->bind_off = mdata->filelen; | |
2668 | mdata->filelen += di->bind_size; | |
2669 | } | |
2670 | if (di->weak_bind_size != 0) | |
2671 | { | |
2672 | di->weak_bind_off = mdata->filelen; | |
2673 | mdata->filelen += di->weak_bind_size; | |
2674 | } | |
2675 | if (di->lazy_bind_size != 0) | |
2676 | { | |
2677 | di->lazy_bind_off = mdata->filelen; | |
2678 | mdata->filelen += di->lazy_bind_size; | |
2679 | } | |
2680 | if (di->export_size != 0) | |
2681 | { | |
2682 | di->export_off = mdata->filelen; | |
2683 | mdata->filelen += di->export_size; | |
2684 | } | |
2685 | } | |
2686 | break; | |
2687 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2688 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2689 | case BFD_MACH_O_LC_MAIN: | |
2690 | /* Nothing to do. */ | |
2691 | break; | |
2692 | default: | |
4eca0228 | 2693 | _bfd_error_handler |
d42c267e AM |
2694 | (_("unable to allocate data for load command %#x"), |
2695 | cmd->type); | |
c9ffd2ea TG |
2696 | break; |
2697 | } | |
2698 | ||
2699 | /* Specially handle symtab and dysymtab. */ | |
2700 | ||
2701 | /* Pre-allocate the symbol table (but not the string table). The reason | |
2702 | is that the dysymtab is after the symbol table but before the string | |
2703 | table (required by the native strip tool). */ | |
2704 | if (symtab != NULL) | |
2705 | { | |
2706 | unsigned int symlen; | |
2707 | unsigned int wide = bfd_mach_o_wide_p (abfd); | |
2708 | ||
2709 | symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
2710 | ||
2711 | /* Align for symbols. */ | |
2712 | mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2); | |
2713 | symtab->symoff = mdata->filelen; | |
2714 | ||
2715 | symtab->nsyms = bfd_get_symcount (abfd); | |
2716 | mdata->filelen += symtab->nsyms * symlen; | |
2717 | } | |
2718 | ||
2719 | /* Build the dysymtab. */ | |
2720 | if (dysymtab != NULL) | |
2721 | if (!bfd_mach_o_build_dysymtab (abfd, dysymtab)) | |
2722 | return FALSE; | |
2723 | ||
2724 | /* Write symtab and strtab. */ | |
2725 | if (symtab != NULL) | |
2726 | if (!bfd_mach_o_write_symtab_content (abfd, symtab)) | |
2727 | return FALSE; | |
2728 | ||
2729 | /* Adjust linkedit size. */ | |
2730 | if (linkedit != NULL) | |
2731 | { | |
2732 | /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */ | |
2733 | ||
2734 | linkedit->vmsize = mdata->filelen - linkedit->fileoff; | |
2735 | /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */ | |
2736 | linkedit->filesize = mdata->filelen - linkedit->fileoff; | |
2737 | ||
2738 | linkedit->initprot = BFD_MACH_O_PROT_READ; | |
2739 | linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2740 | | BFD_MACH_O_PROT_EXECUTE; | |
2741 | } | |
2742 | ||
2743 | /* Second pass: write commands. */ | |
2744 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
3af9a47b | 2745 | { |
46d1c23b | 2746 | struct mach_o_load_command_external raw; |
3af9a47b NC |
2747 | unsigned long typeflag; |
2748 | ||
c9ffd2ea | 2749 | typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 2750 | |
46d1c23b | 2751 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
c9ffd2ea | 2752 | bfd_h_put_32 (abfd, cmd->len, raw.cmdsize); |
3af9a47b | 2753 | |
c9ffd2ea | 2754 | if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0 |
07d6d2b8 | 2755 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 2756 | return FALSE; |
3af9a47b | 2757 | |
c9ffd2ea | 2758 | switch (cmd->type) |
3af9a47b NC |
2759 | { |
2760 | case BFD_MACH_O_LC_SEGMENT: | |
c9ffd2ea | 2761 | if (!bfd_mach_o_write_segment_32 (abfd, cmd)) |
1e8a024a TG |
2762 | return FALSE; |
2763 | break; | |
2764 | case BFD_MACH_O_LC_SEGMENT_64: | |
c9ffd2ea | 2765 | if (!bfd_mach_o_write_segment_64 (abfd, cmd)) |
b34976b6 | 2766 | return FALSE; |
3af9a47b NC |
2767 | break; |
2768 | case BFD_MACH_O_LC_SYMTAB: | |
c9ffd2ea | 2769 | if (!bfd_mach_o_write_symtab (abfd, cmd)) |
b34976b6 | 2770 | return FALSE; |
3af9a47b | 2771 | break; |
7f307238 | 2772 | case BFD_MACH_O_LC_DYSYMTAB: |
c9ffd2ea | 2773 | if (!bfd_mach_o_write_dysymtab (abfd, cmd)) |
7f307238 IS |
2774 | return FALSE; |
2775 | break; | |
3af9a47b NC |
2776 | case BFD_MACH_O_LC_THREAD: |
2777 | case BFD_MACH_O_LC_UNIXTHREAD: | |
c9ffd2ea | 2778 | if (!bfd_mach_o_write_thread (abfd, cmd)) |
b34976b6 | 2779 | return FALSE; |
3af9a47b | 2780 | break; |
3af9a47b | 2781 | case BFD_MACH_O_LC_LOAD_DYLIB: |
c9ffd2ea TG |
2782 | if (!bfd_mach_o_write_dylib (abfd, cmd)) |
2783 | return FALSE; | |
2784 | break; | |
3af9a47b | 2785 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
c9ffd2ea TG |
2786 | if (!bfd_mach_o_write_dylinker (abfd, cmd)) |
2787 | return FALSE; | |
2788 | break; | |
2789 | case BFD_MACH_O_LC_MAIN: | |
2790 | if (!bfd_mach_o_write_main (abfd, cmd)) | |
2791 | return FALSE; | |
2792 | break; | |
2793 | case BFD_MACH_O_LC_DYLD_INFO: | |
2794 | if (!bfd_mach_o_write_dyld_info (abfd, cmd)) | |
2795 | return FALSE; | |
3af9a47b NC |
2796 | break; |
2797 | default: | |
4eca0228 | 2798 | _bfd_error_handler |
d42c267e AM |
2799 | (_("unable to write unknown load command %#x"), |
2800 | cmd->type); | |
b34976b6 | 2801 | return FALSE; |
3af9a47b NC |
2802 | } |
2803 | } | |
2804 | ||
b34976b6 | 2805 | return TRUE; |
3af9a47b NC |
2806 | } |
2807 | ||
f1bde64c TG |
2808 | static void |
2809 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
07d6d2b8 | 2810 | bfd_mach_o_section *s) |
f1bde64c | 2811 | { |
f1bde64c TG |
2812 | if (seg->sect_head == NULL) |
2813 | seg->sect_head = s; | |
2814 | else | |
2815 | seg->sect_tail->next = s; | |
2816 | seg->sect_tail = s; | |
2817 | } | |
2818 | ||
2819 | /* Create section Mach-O flags from BFD flags. */ | |
2820 | ||
2821 | static void | |
3cc27770 TG |
2822 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, |
2823 | asection *sec) | |
f1bde64c TG |
2824 | { |
2825 | flagword bfd_flags; | |
2826 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2827 | ||
2828 | /* Create default flags. */ | |
fd361982 | 2829 | bfd_flags = bfd_section_flags (sec); |
f1bde64c TG |
2830 | if ((bfd_flags & SEC_CODE) == SEC_CODE) |
2831 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2832 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2833 | | BFD_MACH_O_S_REGULAR; | |
2834 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2835 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2836 | else if (bfd_flags & SEC_DEBUGGING) | |
2837 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2838 | else | |
2839 | s->flags = BFD_MACH_O_S_REGULAR; | |
2840 | } | |
2841 | ||
7f307238 | 2842 | static bfd_boolean |
c9ffd2ea | 2843 | bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) |
7f307238 | 2844 | { |
c9ffd2ea TG |
2845 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2846 | unsigned int i, j; | |
7f307238 | 2847 | |
7f307238 | 2848 | seg->vmaddr = 0; |
7f307238 | 2849 | seg->fileoff = mdata->filelen; |
c9ffd2ea TG |
2850 | seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE |
2851 | | BFD_MACH_O_PROT_EXECUTE; | |
2852 | seg->maxprot = seg->initprot; | |
7f307238 | 2853 | |
68ffbac6 | 2854 | /* Append sections to the segment. |
09903f4b IS |
2855 | |
2856 | This is a little tedious, we have to honor the need to account zerofill | |
2857 | sections after all the rest. This forces us to do the calculation of | |
68ffbac6 | 2858 | total vmsize in three passes so that any alignment increments are |
09903f4b | 2859 | properly accounted. */ |
7f307238 IS |
2860 | for (i = 0; i < mdata->nsects; ++i) |
2861 | { | |
2862 | bfd_mach_o_section *s = mdata->sections[i]; | |
2863 | asection *sec = s->bfdsection; | |
2864 | ||
09903f4b IS |
2865 | /* Although we account for zerofill section sizes in vm order, they are |
2866 | placed in the file in source sequence. */ | |
c9ffd2ea | 2867 | bfd_mach_o_append_section_to_segment (seg, s); |
e5081f2f | 2868 | s->offset = 0; |
68ffbac6 | 2869 | |
c9ffd2ea TG |
2870 | /* Zerofill sections have zero file size & offset, the only content |
2871 | written to the file is the symbols. */ | |
e5081f2f | 2872 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL |
07d6d2b8 | 2873 | || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2874 | == BFD_MACH_O_S_GB_ZEROFILL)) |
07d6d2b8 | 2875 | continue; |
e5081f2f | 2876 | |
c9ffd2ea TG |
2877 | /* The Darwin system tools (in MH_OBJECT files, at least) always account |
2878 | sections, even those with zero size. */ | |
e5081f2f | 2879 | if (s->size > 0) |
c9ffd2ea | 2880 | { |
09903f4b IS |
2881 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); |
2882 | seg->vmsize += s->size; | |
2883 | ||
c9ffd2ea TG |
2884 | /* MH_OBJECT files have unaligned content. */ |
2885 | if (1) | |
2886 | { | |
2887 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
07d6d2b8 AM |
2888 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2889 | } | |
09903f4b IS |
2890 | seg->filesize += s->size; |
2891 | ||
c9ffd2ea TG |
2892 | /* The system tools write even zero-sized sections with an offset |
2893 | field set to the current file position. */ | |
07d6d2b8 | 2894 | s->offset = mdata->filelen; |
c9ffd2ea | 2895 | } |
7f307238 IS |
2896 | |
2897 | sec->filepos = s->offset; | |
7f307238 IS |
2898 | mdata->filelen += s->size; |
2899 | } | |
2900 | ||
3cc27770 | 2901 | /* Now pass through again, for zerofill, only now we just update the |
c9ffd2ea TG |
2902 | vmsize, and then for zerofill_GB. */ |
2903 | for (j = 0; j < 2; j++) | |
09903f4b | 2904 | { |
c9ffd2ea | 2905 | unsigned int stype; |
68ffbac6 | 2906 | |
c9ffd2ea TG |
2907 | if (j == 0) |
2908 | stype = BFD_MACH_O_S_ZEROFILL; | |
2909 | else | |
2910 | stype = BFD_MACH_O_S_GB_ZEROFILL; | |
09903f4b | 2911 | |
c9ffd2ea TG |
2912 | for (i = 0; i < mdata->nsects; ++i) |
2913 | { | |
2914 | bfd_mach_o_section *s = mdata->sections[i]; | |
2915 | ||
2916 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype) | |
2917 | continue; | |
2918 | ||
2919 | if (s->size > 0) | |
2920 | { | |
2921 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2922 | seg->vmsize += s->size; | |
2923 | } | |
09903f4b IS |
2924 | } |
2925 | } | |
bb76d940 | 2926 | |
09903f4b | 2927 | /* Allocate space for the relocations. */ |
707e555b | 2928 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); |
bb76d940 IS |
2929 | |
2930 | for (i = 0; i < mdata->nsects; ++i) | |
2931 | { | |
2932 | bfd_mach_o_section *ms = mdata->sections[i]; | |
2933 | asection *sec = ms->bfdsection; | |
68ffbac6 | 2934 | |
c9ffd2ea TG |
2935 | ms->nreloc = sec->reloc_count; |
2936 | if (ms->nreloc == 0) | |
07d6d2b8 | 2937 | { |
c9ffd2ea | 2938 | /* Clear nreloc and reloff if there is no relocs. */ |
bb76d940 IS |
2939 | ms->reloff = 0; |
2940 | continue; | |
07d6d2b8 | 2941 | } |
bb76d940 IS |
2942 | sec->rel_filepos = mdata->filelen; |
2943 | ms->reloff = sec->rel_filepos; | |
2944 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
2945 | } | |
7f307238 IS |
2946 | |
2947 | return TRUE; | |
2948 | } | |
2949 | ||
c9ffd2ea TG |
2950 | static bfd_boolean |
2951 | bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) | |
50d10658 | 2952 | { |
c9ffd2ea | 2953 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
50d10658 | 2954 | unsigned int i; |
c9ffd2ea TG |
2955 | bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; |
2956 | bfd_vma vma; | |
2957 | bfd_mach_o_section *s; | |
2958 | ||
2959 | seg->vmsize = 0; | |
50d10658 | 2960 | |
c9ffd2ea TG |
2961 | seg->fileoff = mdata->filelen; |
2962 | seg->maxprot = 0; | |
2963 | seg->initprot = 0; | |
2964 | seg->flags = 0; | |
2965 | ||
2966 | /* Append sections to the segment. We assume they are properly ordered | |
2967 | by vma (but we check that). */ | |
2968 | vma = 0; | |
50d10658 IS |
2969 | for (i = 0; i < mdata->nsects; ++i) |
2970 | { | |
c9ffd2ea | 2971 | s = mdata->sections[i]; |
50d10658 | 2972 | |
c9ffd2ea TG |
2973 | /* Consider only sections for this segment. */ |
2974 | if (strcmp (seg->segname, s->segname) != 0) | |
2975 | continue; | |
50d10658 | 2976 | |
c9ffd2ea | 2977 | bfd_mach_o_append_section_to_segment (seg, s); |
7f307238 | 2978 | |
86eafac0 NC |
2979 | if (s->addr < vma) |
2980 | { | |
4eca0228 | 2981 | _bfd_error_handler |
695344c0 | 2982 | /* xgettext:c-format */ |
2dcf00ce AM |
2983 | (_("section address (%#" PRIx64 ") " |
2984 | "below start of segment (%#" PRIx64 ")"), | |
2985 | (uint64_t) s->addr, (uint64_t) vma); | |
86eafac0 NC |
2986 | return FALSE; |
2987 | } | |
2988 | ||
c9ffd2ea | 2989 | vma = s->addr + s->size; |
7f307238 IS |
2990 | } |
2991 | ||
c9ffd2ea TG |
2992 | /* Set segment file offset: make it page aligned. */ |
2993 | vma = seg->sect_head->addr; | |
2994 | seg->vmaddr = vma & ~pagemask; | |
2995 | if ((mdata->filelen & pagemask) > (vma & pagemask)) | |
2996 | mdata->filelen += pagemask + 1; | |
2997 | seg->fileoff = mdata->filelen & ~pagemask; | |
2998 | mdata->filelen = seg->fileoff + (vma & pagemask); | |
7f307238 | 2999 | |
c9ffd2ea TG |
3000 | /* Set section file offset. */ |
3001 | for (s = seg->sect_head; s != NULL; s = s->next) | |
7f307238 | 3002 | { |
c9ffd2ea | 3003 | asection *sec = s->bfdsection; |
fd361982 | 3004 | flagword flags = bfd_section_flags (sec); |
b22161d6 | 3005 | |
c9ffd2ea TG |
3006 | /* Adjust segment size. */ |
3007 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
3008 | seg->vmsize += s->size; | |
3009 | ||
3010 | /* File offset and length. */ | |
3011 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
3012 | ||
3013 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL | |
07d6d2b8 | 3014 | && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 3015 | != BFD_MACH_O_S_GB_ZEROFILL)) |
b22161d6 | 3016 | { |
c9ffd2ea TG |
3017 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
3018 | ||
3019 | s->offset = mdata->filelen; | |
3020 | s->bfdsection->filepos = s->offset; | |
3021 | ||
3022 | seg->filesize += s->size; | |
3023 | mdata->filelen += s->size; | |
b22161d6 | 3024 | } |
c9ffd2ea | 3025 | else |
b22161d6 | 3026 | { |
c9ffd2ea TG |
3027 | s->offset = 0; |
3028 | s->bfdsection->filepos = 0; | |
3029 | } | |
3030 | ||
3031 | /* Set protection. */ | |
3032 | if (flags & SEC_LOAD) | |
3033 | { | |
3034 | if (flags & SEC_CODE) | |
3035 | seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE; | |
3036 | if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA) | |
3037 | seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ; | |
b22161d6 | 3038 | } |
c9ffd2ea TG |
3039 | |
3040 | /* Relocs shouldn't appear in non-object files. */ | |
3041 | if (s->bfdsection->reloc_count != 0) | |
3042 | return FALSE; | |
b22161d6 | 3043 | } |
c9ffd2ea TG |
3044 | |
3045 | /* Set maxprot. */ | |
3046 | if (seg->initprot != 0) | |
3047 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
3048 | | BFD_MACH_O_PROT_EXECUTE; | |
b22161d6 | 3049 | else |
c9ffd2ea | 3050 | seg->maxprot = 0; |
b22161d6 | 3051 | |
c9ffd2ea TG |
3052 | /* Round segment size (and file size). */ |
3053 | seg->vmsize = (seg->vmsize + pagemask) & ~pagemask; | |
3054 | seg->filesize = (seg->filesize + pagemask) & ~pagemask; | |
3055 | mdata->filelen = (mdata->filelen + pagemask) & ~pagemask; | |
7f307238 | 3056 | |
c9ffd2ea TG |
3057 | return TRUE; |
3058 | } | |
68ffbac6 | 3059 | |
c9ffd2ea TG |
3060 | /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds |
3061 | fields in header. */ | |
68ffbac6 | 3062 | |
86eafac0 | 3063 | static bfd_boolean |
c9ffd2ea TG |
3064 | bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata) |
3065 | { | |
3066 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3067 | unsigned int hdrlen; | |
3068 | ufile_ptr offset; | |
3069 | bfd_mach_o_load_command *cmd; | |
3070 | unsigned int align; | |
86eafac0 | 3071 | bfd_boolean ret = TRUE; |
c9ffd2ea TG |
3072 | |
3073 | hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; | |
3074 | align = wide ? 8 - 1 : 4 - 1; | |
3075 | offset = hdrlen; | |
3076 | mdata->header.ncmds = 0; | |
50d10658 | 3077 | |
c9ffd2ea TG |
3078 | for (cmd = mdata->first_command; cmd; cmd = cmd->next) |
3079 | { | |
3080 | mdata->header.ncmds++; | |
3081 | cmd->offset = offset; | |
68ffbac6 | 3082 | |
c9ffd2ea TG |
3083 | switch (cmd->type) |
3084 | { | |
3085 | case BFD_MACH_O_LC_SEGMENT_64: | |
3086 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
3087 | + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects; | |
3088 | break; | |
3089 | case BFD_MACH_O_LC_SEGMENT: | |
3090 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
3091 | + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects; | |
3092 | break; | |
3093 | case BFD_MACH_O_LC_SYMTAB: | |
3094 | cmd->len = sizeof (struct mach_o_symtab_command_external) | |
3095 | + BFD_MACH_O_LC_SIZE; | |
3096 | break; | |
3097 | case BFD_MACH_O_LC_DYSYMTAB: | |
3098 | cmd->len = sizeof (struct mach_o_dysymtab_command_external) | |
3099 | + BFD_MACH_O_LC_SIZE; | |
3100 | break; | |
3101 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
3102 | cmd->len = sizeof (struct mach_o_dylib_command_external) | |
3103 | + BFD_MACH_O_LC_SIZE; | |
3104 | cmd->command.dylib.name_offset = cmd->len; | |
3105 | cmd->len += strlen (cmd->command.dylib.name_str); | |
3106 | cmd->len = (cmd->len + align) & ~align; | |
3107 | break; | |
3108 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
3109 | cmd->len = sizeof (struct mach_o_str_command_external) | |
3110 | + BFD_MACH_O_LC_SIZE; | |
3111 | cmd->command.dylinker.name_offset = cmd->len; | |
3112 | cmd->len += strlen (cmd->command.dylinker.name_str); | |
3113 | cmd->len = (cmd->len + align) & ~align; | |
3114 | break; | |
3115 | case BFD_MACH_O_LC_MAIN: | |
3116 | cmd->len = sizeof (struct mach_o_entry_point_command_external) | |
3117 | + BFD_MACH_O_LC_SIZE; | |
3118 | break; | |
3119 | case BFD_MACH_O_LC_DYLD_INFO: | |
3120 | cmd->len = sizeof (struct mach_o_dyld_info_command_external) | |
3121 | + BFD_MACH_O_LC_SIZE; | |
3122 | break; | |
3123 | default: | |
4eca0228 | 3124 | _bfd_error_handler |
d42c267e AM |
3125 | (_("unable to layout unknown load command %#x"), |
3126 | cmd->type); | |
86eafac0 | 3127 | ret = FALSE; |
c9ffd2ea | 3128 | break; |
7f307238 | 3129 | } |
c9ffd2ea TG |
3130 | |
3131 | BFD_ASSERT (cmd->len % (align + 1) == 0); | |
3132 | offset += cmd->len; | |
7f307238 | 3133 | } |
c9ffd2ea TG |
3134 | mdata->header.sizeofcmds = offset - hdrlen; |
3135 | mdata->filelen = offset; | |
86eafac0 NC |
3136 | |
3137 | return ret; | |
c9ffd2ea | 3138 | } |
7f307238 | 3139 | |
c9ffd2ea TG |
3140 | /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a |
3141 | segment. */ | |
3142 | ||
3143 | static void | |
3144 | bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata, | |
3145 | bfd_mach_o_load_command *cmd, | |
3146 | const char *segname, unsigned int nbr_sect) | |
3147 | { | |
3148 | bfd_mach_o_segment_command *seg = &cmd->command.segment; | |
3149 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3150 | ||
3151 | /* Init segment command. */ | |
3152 | cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT; | |
3153 | cmd->type_required = FALSE; | |
3154 | ||
3155 | strcpy (seg->segname, segname); | |
3156 | seg->nsects = nbr_sect; | |
3157 | ||
3158 | seg->vmaddr = 0; | |
3159 | seg->vmsize = 0; | |
3160 | ||
3161 | seg->fileoff = 0; | |
3162 | seg->filesize = 0; | |
3163 | seg->maxprot = 0; | |
3164 | seg->initprot = 0; | |
3165 | seg->flags = 0; | |
3166 | seg->sect_head = NULL; | |
3167 | seg->sect_tail = NULL; | |
7f307238 IS |
3168 | } |
3169 | ||
3170 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
3171 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
3172 | and copy functionality. */ | |
154a1ee5 TG |
3173 | |
3174 | bfd_boolean | |
3175 | bfd_mach_o_build_commands (bfd *abfd) | |
3176 | { | |
046b007d | 3177 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bbd56171 | 3178 | unsigned wide = mach_o_wide_p (&mdata->header); |
c9ffd2ea TG |
3179 | unsigned int nbr_segcmd = 0; |
3180 | bfd_mach_o_load_command *commands; | |
3181 | unsigned int nbr_commands; | |
bbd56171 IS |
3182 | int symtab_idx = -1; |
3183 | int dysymtab_idx = -1; | |
c9ffd2ea TG |
3184 | int main_idx = -1; |
3185 | unsigned int i; | |
154a1ee5 | 3186 | |
c9ffd2ea TG |
3187 | /* Return now if already built. */ |
3188 | if (mdata->header.ncmds != 0) | |
3189 | return TRUE; | |
154a1ee5 | 3190 | |
7f307238 | 3191 | /* Fill in the file type, if not already set. */ |
7f307238 | 3192 | if (mdata->header.filetype == 0) |
154a1ee5 | 3193 | { |
7f307238 | 3194 | if (abfd->flags & EXEC_P) |
07d6d2b8 | 3195 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; |
7f307238 | 3196 | else if (abfd->flags & DYNAMIC) |
07d6d2b8 | 3197 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; |
7f307238 | 3198 | else |
07d6d2b8 | 3199 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; |
154a1ee5 | 3200 | } |
7f307238 IS |
3201 | |
3202 | /* If hasn't already been done, flatten sections list, and sort | |
3203 | if/when required. Must be done before the symbol table is adjusted, | |
3204 | since that depends on properly numbered sections. */ | |
3205 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
3206 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
3207 | return FALSE; | |
3208 | ||
3209 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
3210 | partition out any indirect symbols. */ | |
b22161d6 | 3211 | if (!bfd_mach_o_mangle_symbols (abfd)) |
7f307238 IS |
3212 | return FALSE; |
3213 | ||
c9ffd2ea TG |
3214 | /* Segment commands. */ |
3215 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) | |
3216 | { | |
3217 | /* Only one segment for all the sections. But the segment is | |
3218 | optional if there is no sections. */ | |
3219 | nbr_segcmd = (mdata->nsects > 0) ? 1 : 0; | |
3220 | } | |
3221 | else | |
3222 | { | |
3223 | bfd_mach_o_section *prev_sect = NULL; | |
bbd56171 | 3224 | |
c9ffd2ea TG |
3225 | /* One pagezero segment and one linkedit segment. */ |
3226 | nbr_segcmd = 2; | |
bbd56171 | 3227 | |
c9ffd2ea TG |
3228 | /* Create one segment for associated segment name in sections. |
3229 | Assume that sections with the same segment name are consecutive. */ | |
3230 | for (i = 0; i < mdata->nsects; i++) | |
3231 | { | |
3232 | bfd_mach_o_section *this_sect = mdata->sections[i]; | |
bbd56171 | 3233 | |
c9ffd2ea TG |
3234 | if (prev_sect == NULL |
3235 | || strcmp (prev_sect->segname, this_sect->segname) != 0) | |
3236 | { | |
3237 | nbr_segcmd++; | |
3238 | prev_sect = this_sect; | |
3239 | } | |
3240 | } | |
154a1ee5 | 3241 | } |
154a1ee5 | 3242 | |
c9ffd2ea TG |
3243 | nbr_commands = nbr_segcmd; |
3244 | ||
3245 | /* One command for the symbol table (only if there are symbols. */ | |
7f307238 | 3246 | if (bfd_get_symcount (abfd) > 0) |
c9ffd2ea | 3247 | symtab_idx = nbr_commands++; |
c2f09c75 | 3248 | |
bbd56171 IS |
3249 | /* FIXME: |
3250 | This is a rather crude test for whether we should build a dysymtab. */ | |
3251 | if (bfd_mach_o_should_emit_dysymtab () | |
3252 | && bfd_get_symcount (abfd)) | |
3253 | { | |
bbd56171 IS |
3254 | /* If there should be a case where a dysymtab could be emitted without |
3255 | a symtab (seems improbable), this would need amending. */ | |
c9ffd2ea | 3256 | dysymtab_idx = nbr_commands++; |
bbd56171 | 3257 | } |
154a1ee5 | 3258 | |
c9ffd2ea TG |
3259 | /* Add an entry point command. */ |
3260 | if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE | |
3261 | && bfd_get_start_address (abfd) != 0) | |
3262 | main_idx = nbr_commands++; | |
c2f09c75 | 3263 | |
bbd56171 | 3264 | /* Well, we must have a header, at least. */ |
c9ffd2ea | 3265 | mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
f1bde64c | 3266 | |
bbd56171 | 3267 | /* A bit unusual, but no content is valid; |
7f307238 | 3268 | as -n empty.s -o empty.o */ |
c9ffd2ea TG |
3269 | if (nbr_commands == 0) |
3270 | { | |
3271 | /* Layout commands (well none...) and set headers command fields. */ | |
86eafac0 | 3272 | return bfd_mach_o_layout_commands (mdata); |
c9ffd2ea | 3273 | } |
f1bde64c | 3274 | |
c9ffd2ea TG |
3275 | /* Create commands for segments (and symtabs), prepend them. */ |
3276 | commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command)); | |
3277 | if (commands == NULL) | |
7f307238 | 3278 | return FALSE; |
c9ffd2ea TG |
3279 | for (i = 0; i < nbr_commands - 1; i++) |
3280 | commands[i].next = &commands[i + 1]; | |
3281 | commands[nbr_commands - 1].next = mdata->first_command; | |
3282 | if (mdata->first_command == NULL) | |
3283 | mdata->last_command = &commands[nbr_commands - 1]; | |
3284 | mdata->first_command = &commands[0]; | |
3285 | ||
3286 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0) | |
3287 | { | |
3288 | /* For object file, there is only one segment. */ | |
3289 | bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects); | |
3290 | } | |
3291 | else if (nbr_segcmd != 0) | |
68ffbac6 | 3292 | { |
c9ffd2ea | 3293 | bfd_mach_o_load_command *cmd; |
7f307238 | 3294 | |
c9ffd2ea | 3295 | BFD_ASSERT (nbr_segcmd >= 2); |
7f307238 | 3296 | |
c9ffd2ea TG |
3297 | /* The pagezero. */ |
3298 | cmd = &commands[0]; | |
3299 | bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0); | |
3300 | ||
3301 | /* Segments from sections. */ | |
3302 | cmd++; | |
3303 | for (i = 0; i < mdata->nsects;) | |
7f307238 | 3304 | { |
c9ffd2ea TG |
3305 | const char *segname = mdata->sections[i]->segname; |
3306 | unsigned int nbr_sect = 1; | |
3307 | ||
3308 | /* Count number of sections for this segment. */ | |
3309 | for (i++; i < mdata->nsects; i++) | |
3310 | if (strcmp (mdata->sections[i]->segname, segname) == 0) | |
3311 | nbr_sect++; | |
3312 | else | |
3313 | break; | |
3314 | ||
3315 | bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect); | |
3316 | cmd++; | |
7f307238 | 3317 | } |
bbd56171 | 3318 | |
c9ffd2ea TG |
3319 | /* The linkedit. */ |
3320 | bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0); | |
7f307238 | 3321 | } |
f1bde64c | 3322 | |
bbd56171 | 3323 | if (symtab_idx >= 0) |
7f307238 IS |
3324 | { |
3325 | /* Init symtab command. */ | |
c9ffd2ea | 3326 | bfd_mach_o_load_command *cmd = &commands[symtab_idx]; |
68ffbac6 | 3327 | |
bbd56171 | 3328 | cmd->type = BFD_MACH_O_LC_SYMTAB; |
bbd56171 | 3329 | cmd->type_required = FALSE; |
7f307238 | 3330 | } |
154a1ee5 | 3331 | |
bbd56171 IS |
3332 | /* If required, setup symtab command, see comment above about the quality |
3333 | of this test. */ | |
3334 | if (dysymtab_idx >= 0) | |
7f307238 | 3335 | { |
c9ffd2ea | 3336 | bfd_mach_o_load_command *cmd = &commands[dysymtab_idx]; |
bbd56171 | 3337 | |
7f307238 | 3338 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; |
7f307238 | 3339 | cmd->type_required = FALSE; |
c9ffd2ea TG |
3340 | } |
3341 | ||
3342 | /* Create the main command. */ | |
3343 | if (main_idx >= 0) | |
3344 | { | |
3345 | bfd_mach_o_load_command *cmd = &commands[main_idx]; | |
7f307238 | 3346 | |
c9ffd2ea TG |
3347 | cmd->type = BFD_MACH_O_LC_MAIN; |
3348 | cmd->type_required = TRUE; | |
3349 | ||
3350 | cmd->command.main.entryoff = 0; | |
3351 | cmd->command.main.stacksize = 0; | |
154a1ee5 | 3352 | } |
154a1ee5 | 3353 | |
c9ffd2ea | 3354 | /* Layout commands. */ |
86eafac0 NC |
3355 | if (! bfd_mach_o_layout_commands (mdata)) |
3356 | return FALSE; | |
c9ffd2ea | 3357 | |
7f307238 IS |
3358 | /* So, now we have sized the commands and the filelen set to that. |
3359 | Now we can build the segment command and set the section file offsets. */ | |
c9ffd2ea TG |
3360 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) |
3361 | { | |
3362 | for (i = 0; i < nbr_segcmd; i++) | |
3363 | if (!bfd_mach_o_build_obj_seg_command | |
3364 | (abfd, &commands[i].command.segment)) | |
3365 | return FALSE; | |
3366 | } | |
3367 | else | |
3368 | { | |
3369 | bfd_vma maxvma = 0; | |
7f307238 | 3370 | |
c9ffd2ea TG |
3371 | /* Skip pagezero and linkedit segments. */ |
3372 | for (i = 1; i < nbr_segcmd - 1; i++) | |
3373 | { | |
3374 | bfd_mach_o_segment_command *seg = &commands[i].command.segment; | |
3375 | ||
3376 | if (!bfd_mach_o_build_exec_seg_command (abfd, seg)) | |
3377 | return FALSE; | |
3378 | ||
3379 | if (seg->vmaddr + seg->vmsize > maxvma) | |
3380 | maxvma = seg->vmaddr + seg->vmsize; | |
3381 | } | |
3382 | ||
3383 | /* Set the size of __PAGEZERO. */ | |
3384 | commands[0].command.segment.vmsize = | |
3385 | commands[1].command.segment.vmaddr; | |
3386 | ||
3387 | /* Set the vma and fileoff of __LINKEDIT. */ | |
3388 | commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma; | |
3389 | commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen; | |
3390 | ||
3391 | /* Set entry point (once segments have been laid out). */ | |
3392 | if (main_idx >= 0) | |
3393 | commands[main_idx].command.main.entryoff = | |
3394 | bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr; | |
3395 | } | |
7f307238 | 3396 | |
154a1ee5 TG |
3397 | return TRUE; |
3398 | } | |
3399 | ||
3400 | /* Set the contents of a section. */ | |
3401 | ||
3402 | bfd_boolean | |
3403 | bfd_mach_o_set_section_contents (bfd *abfd, | |
3404 | asection *section, | |
3405 | const void * location, | |
3406 | file_ptr offset, | |
3407 | bfd_size_type count) | |
3408 | { | |
3409 | file_ptr pos; | |
3410 | ||
7f307238 IS |
3411 | /* Trying to write the first section contents will trigger the creation of |
3412 | the load commands if they are not already present. */ | |
c9ffd2ea | 3413 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
154a1ee5 TG |
3414 | return FALSE; |
3415 | ||
3416 | if (count == 0) | |
3417 | return TRUE; | |
3418 | ||
3419 | pos = section->filepos + offset; | |
3420 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
3421 | || bfd_bwrite (location, count, abfd) != count) | |
3422 | return FALSE; | |
3423 | ||
3424 | return TRUE; | |
3425 | } | |
3426 | ||
3427 | int | |
116c20d2 | 3428 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 3429 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
3430 | { |
3431 | return 0; | |
3432 | } | |
3433 | ||
3434 | /* Make an empty symbol. This is required only because | |
3435 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
3436 | ||
154a1ee5 | 3437 | asymbol * |
116c20d2 | 3438 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 3439 | { |
d3ce72d0 NC |
3440 | asymbol *new_symbol; |
3441 | ||
3442 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
3443 | if (new_symbol == NULL) | |
3444 | return new_symbol; | |
3445 | new_symbol->the_bfd = abfd; | |
b22161d6 | 3446 | new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET; |
d3ce72d0 | 3447 | return new_symbol; |
3af9a47b NC |
3448 | } |
3449 | ||
154a1ee5 | 3450 | static bfd_boolean |
47daa70f | 3451 | bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header) |
3af9a47b | 3452 | { |
46d1c23b | 3453 | struct mach_o_header_external raw; |
1e8a024a | 3454 | unsigned int size; |
edeb6e24 | 3455 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 3456 | |
1e8a024a | 3457 | /* Just read the magic number. */ |
47daa70f | 3458 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3459 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 3460 | return FALSE; |
3af9a47b | 3461 | |
46d1c23b | 3462 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
3463 | { |
3464 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3465 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 3466 | header->version = 1; |
3af9a47b NC |
3467 | get32 = bfd_getb32; |
3468 | } | |
46d1c23b | 3469 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 3470 | { |
a95a4550 | 3471 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 3472 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
3473 | header->version = 1; |
3474 | get32 = bfd_getl32; | |
3475 | } | |
46d1c23b | 3476 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3477 | { |
3478 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3479 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
3480 | header->version = 2; |
3481 | get32 = bfd_getb32; | |
3482 | } | |
46d1c23b | 3483 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3484 | { |
3485 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 3486 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 3487 | header->version = 2; |
3af9a47b NC |
3488 | get32 = bfd_getl32; |
3489 | } | |
3490 | else | |
3491 | { | |
3492 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 3493 | return FALSE; |
3af9a47b | 3494 | } |
a95a4550 | 3495 | |
1e8a024a | 3496 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 3497 | size = mach_o_wide_p (header) ? |
154a1ee5 | 3498 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 3499 | |
47daa70f | 3500 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3501 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 3502 | return FALSE; |
1e8a024a | 3503 | |
46d1c23b TG |
3504 | header->cputype = (*get32) (raw.cputype); |
3505 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
3506 | header->filetype = (*get32) (raw.filetype); | |
3507 | header->ncmds = (*get32) (raw.ncmds); | |
3508 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
3509 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 3510 | |
c2f09c75 | 3511 | if (mach_o_wide_p (header)) |
46d1c23b | 3512 | header->reserved = (*get32) (raw.reserved); |
facf03f2 TG |
3513 | else |
3514 | header->reserved = 0; | |
1e8a024a | 3515 | |
154a1ee5 | 3516 | return TRUE; |
3af9a47b NC |
3517 | } |
3518 | ||
f1bde64c TG |
3519 | bfd_boolean |
3520 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
3521 | { | |
3522 | bfd_mach_o_section *s; | |
fd361982 | 3523 | unsigned bfdalign = bfd_section_alignment (sec); |
f1bde64c TG |
3524 | |
3525 | s = bfd_mach_o_get_mach_o_section (sec); | |
3526 | if (s == NULL) | |
3527 | { | |
3528 | flagword bfd_flags; | |
a4551119 | 3529 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
3530 | |
3531 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
3532 | if (s == NULL) | |
3533 | return FALSE; | |
3534 | sec->used_by_bfd = s; | |
3535 | s->bfdsection = sec; | |
3536 | ||
a4551119 TG |
3537 | /* Create the Darwin seg/sect name pair from the bfd name. |
3538 | If this is a canonical name for which a specific paiting exists | |
3539 | there will also be defined flags, type, attribute and alignment | |
3540 | values. */ | |
3541 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
3542 | if (xlat != NULL) | |
3543 | { | |
3544 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
68ffbac6 | 3545 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign |
a4551119 | 3546 | : bfdalign; |
fd361982 AM |
3547 | bfd_set_section_alignment (sec, s->align); |
3548 | bfd_flags = bfd_section_flags (sec); | |
a4551119 | 3549 | if (bfd_flags == SEC_NO_FLAGS) |
fd361982 | 3550 | bfd_set_section_flags (sec, xlat->bfd_flags); |
a4551119 | 3551 | } |
f1bde64c | 3552 | else |
a4551119 TG |
3553 | /* Create default flags. */ |
3554 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
3555 | } |
3556 | ||
3557 | return _bfd_generic_new_section_hook (abfd, sec); | |
3558 | } | |
3559 | ||
3560 | static void | |
fd361982 | 3561 | bfd_mach_o_init_section_from_mach_o (asection *sec, unsigned long prot) |
3af9a47b | 3562 | { |
117ed4f8 | 3563 | flagword flags; |
f1bde64c | 3564 | bfd_mach_o_section *section; |
3af9a47b | 3565 | |
fd361982 | 3566 | flags = bfd_section_flags (sec); |
f1bde64c | 3567 | section = bfd_mach_o_get_mach_o_section (sec); |
3af9a47b | 3568 | |
a4551119 TG |
3569 | /* TODO: see if we should use the xlat system for doing this by |
3570 | preference and fall back to this for unknown sections. */ | |
3571 | ||
8462aec7 | 3572 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 3573 | { |
8462aec7 TG |
3574 | /* Try to guess flags. */ |
3575 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
07d6d2b8 | 3576 | flags = SEC_DEBUGGING; |
8462aec7 | 3577 | else |
07d6d2b8 AM |
3578 | { |
3579 | flags = SEC_ALLOC; | |
3580 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
3581 | != BFD_MACH_O_S_ZEROFILL) | |
3582 | { | |
3583 | flags |= SEC_LOAD; | |
3584 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
3585 | flags |= SEC_CODE; | |
3586 | if (prot & BFD_MACH_O_PROT_WRITE) | |
3587 | flags |= SEC_DATA; | |
3588 | else if (prot & BFD_MACH_O_PROT_READ) | |
3589 | flags |= SEC_READONLY; | |
3590 | } | |
3591 | } | |
ef17cb22 | 3592 | } |
15e1c58a TG |
3593 | else |
3594 | { | |
8462aec7 | 3595 | if ((flags & SEC_DEBUGGING) == 0) |
07d6d2b8 | 3596 | flags |= SEC_ALLOC; |
15e1c58a | 3597 | } |
8462aec7 TG |
3598 | |
3599 | if (section->offset != 0) | |
3600 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
3601 | if (section->nreloc != 0) |
3602 | flags |= SEC_RELOC; | |
3603 | ||
fd361982 | 3604 | bfd_set_section_flags (sec, flags); |
f1bde64c TG |
3605 | |
3606 | sec->vma = section->addr; | |
3607 | sec->lma = section->addr; | |
3608 | sec->size = section->size; | |
3609 | sec->filepos = section->offset; | |
3610 | sec->alignment_power = section->align; | |
3611 | sec->segment_mark = 0; | |
3612 | sec->reloc_count = section->nreloc; | |
3613 | sec->rel_filepos = section->reloff; | |
3614 | } | |
3615 | ||
3616 | static asection * | |
3617 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
07d6d2b8 AM |
3618 | const unsigned char *segname, |
3619 | const unsigned char *sectname) | |
f1bde64c TG |
3620 | { |
3621 | const char *sname; | |
3622 | flagword flags; | |
a95a4550 | 3623 | |
f1bde64c TG |
3624 | bfd_mach_o_convert_section_name_to_bfd |
3625 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
3626 | if (sname == NULL) | |
3627 | return NULL; | |
3af9a47b | 3628 | |
f1bde64c | 3629 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
3630 | } |
3631 | ||
f1bde64c | 3632 | static asection * |
47daa70f | 3633 | bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot) |
3af9a47b | 3634 | { |
46d1c23b | 3635 | struct mach_o_section_32_external raw; |
f1bde64c TG |
3636 | asection *sec; |
3637 | bfd_mach_o_section *section; | |
3af9a47b | 3638 | |
47daa70f TG |
3639 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
3640 | != BFD_MACH_O_SECTION_SIZE) | |
f1bde64c | 3641 | return NULL; |
a95a4550 | 3642 | |
5a5cbf72 | 3643 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3644 | if (sec == NULL) |
3645 | return NULL; | |
3646 | ||
3647 | section = bfd_mach_o_get_mach_o_section (sec); | |
3648 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3649 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3650 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3651 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3652 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
3653 | section->size = bfd_h_get_32 (abfd, raw.size); | |
3654 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3655 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3656 | /* PR 17512: file: 0017eb76. */ |
3657 | if (section->align > 64) | |
3658 | { | |
4eca0228 | 3659 | _bfd_error_handler |
d42c267e | 3660 | (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, " |
4eca0228 | 3661 | "using 32 instead"), section->align); |
c86934ce NC |
3662 | section->align = 32; |
3663 | } | |
46d1c23b TG |
3664 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3665 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3666 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3667 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3668 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 3669 | section->reserved3 = 0; |
1e8a024a | 3670 | |
fd361982 | 3671 | bfd_mach_o_init_section_from_mach_o (sec, prot); |
1e8a024a | 3672 | |
f1bde64c | 3673 | return sec; |
1e8a024a TG |
3674 | } |
3675 | ||
f1bde64c | 3676 | static asection * |
47daa70f | 3677 | bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot) |
1e8a024a | 3678 | { |
46d1c23b | 3679 | struct mach_o_section_64_external raw; |
f1bde64c TG |
3680 | asection *sec; |
3681 | bfd_mach_o_section *section; | |
1e8a024a | 3682 | |
47daa70f TG |
3683 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
3684 | != BFD_MACH_O_SECTION_64_SIZE) | |
f1bde64c TG |
3685 | return NULL; |
3686 | ||
5a5cbf72 | 3687 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3688 | if (sec == NULL) |
3689 | return NULL; | |
1e8a024a | 3690 | |
f1bde64c TG |
3691 | section = bfd_mach_o_get_mach_o_section (sec); |
3692 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3693 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3694 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3695 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3696 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
3697 | section->size = bfd_h_get_64 (abfd, raw.size); | |
3698 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3699 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3700 | if (section->align > 64) |
3701 | { | |
4eca0228 | 3702 | _bfd_error_handler |
d42c267e | 3703 | (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, " |
4eca0228 | 3704 | "using 32 instead"), section->align); |
c86934ce NC |
3705 | section->align = 32; |
3706 | } | |
46d1c23b TG |
3707 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3708 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3709 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3710 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3711 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
3712 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 3713 | |
fd361982 | 3714 | bfd_mach_o_init_section_from_mach_o (sec, prot); |
3af9a47b | 3715 | |
f1bde64c | 3716 | return sec; |
3af9a47b NC |
3717 | } |
3718 | ||
f1bde64c | 3719 | static asection * |
47daa70f | 3720 | bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide) |
1e8a024a TG |
3721 | { |
3722 | if (wide) | |
47daa70f | 3723 | return bfd_mach_o_read_section_64 (abfd, prot); |
1e8a024a | 3724 | else |
47daa70f | 3725 | return bfd_mach_o_read_section_32 (abfd, prot); |
1e8a024a TG |
3726 | } |
3727 | ||
afbb9e17 | 3728 | static bfd_boolean |
ab273af8 | 3729 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
07d6d2b8 AM |
3730 | bfd_mach_o_symtab_command *sym, |
3731 | bfd_mach_o_asymbol *s, | |
3732 | unsigned long i) | |
3af9a47b | 3733 | { |
046b007d | 3734 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 3735 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
3736 | unsigned int symwidth = |
3737 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 3738 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 3739 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
3740 | unsigned char type = -1; |
3741 | unsigned char section = -1; | |
3742 | short desc = -1; | |
1e8a024a | 3743 | symvalue value = -1; |
3af9a47b NC |
3744 | unsigned long stroff = -1; |
3745 | unsigned int symtype = -1; | |
3746 | ||
3747 | BFD_ASSERT (sym->strtab != NULL); | |
3748 | ||
c2f09c75 | 3749 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 3750 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 3751 | { |
4eca0228 | 3752 | _bfd_error_handler |
695344c0 | 3753 | /* xgettext:c-format */ |
07d6d2b8 AM |
3754 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"), |
3755 | symwidth, symoff); | |
afbb9e17 | 3756 | return FALSE; |
3af9a47b NC |
3757 | } |
3758 | ||
46d1c23b TG |
3759 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
3760 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 3761 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
3762 | section = bfd_h_get_8 (abfd, raw.n_sect); |
3763 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 3764 | if (wide) |
46d1c23b | 3765 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 3766 | else |
46d1c23b | 3767 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
3768 | |
3769 | if (stroff >= sym->strsize) | |
3770 | { | |
4eca0228 | 3771 | _bfd_error_handler |
695344c0 | 3772 | /* xgettext:c-format */ |
07d6d2b8 AM |
3773 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"), |
3774 | stroff, | |
3775 | sym->strsize); | |
afbb9e17 | 3776 | return FALSE; |
3af9a47b NC |
3777 | } |
3778 | ||
92bc0e80 TG |
3779 | s->symbol.the_bfd = abfd; |
3780 | s->symbol.name = sym->strtab + stroff; | |
3781 | s->symbol.value = value; | |
3782 | s->symbol.flags = 0x0; | |
b22161d6 | 3783 | s->symbol.udata.i = i; |
92bc0e80 TG |
3784 | s->n_type = type; |
3785 | s->n_sect = section; | |
3786 | s->n_desc = desc; | |
3af9a47b NC |
3787 | |
3788 | if (type & BFD_MACH_O_N_STAB) | |
3789 | { | |
92bc0e80 TG |
3790 | s->symbol.flags |= BSF_DEBUGGING; |
3791 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
3792 | switch (type) |
3793 | { | |
3794 | case N_FUN: | |
3795 | case N_STSYM: | |
3796 | case N_LCSYM: | |
3797 | case N_BNSYM: | |
3798 | case N_SLINE: | |
3799 | case N_ENSYM: | |
3800 | case N_ECOMM: | |
3801 | case N_ECOML: | |
3802 | case N_GSYM: | |
3803 | if ((section > 0) && (section <= mdata->nsects)) | |
3804 | { | |
92bc0e80 TG |
3805 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3806 | s->symbol.value = | |
07d6d2b8 | 3807 | s->symbol.value - mdata->sections[section - 1]->addr; |
15e1c58a TG |
3808 | } |
3809 | break; | |
3810 | } | |
3af9a47b NC |
3811 | } |
3812 | else | |
3813 | { | |
b22161d6 | 3814 | if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)) |
92bc0e80 | 3815 | s->symbol.flags |= BSF_GLOBAL; |
b22161d6 | 3816 | else |
92bc0e80 | 3817 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
3818 | |
3819 | switch (symtype) | |
3820 | { | |
3821 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
3822 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
3823 | && s->symbol.value != 0) | |
3824 | { | |
3825 | /* A common symbol. */ | |
3826 | s->symbol.section = bfd_com_section_ptr; | |
3827 | s->symbol.flags = BSF_NO_FLAGS; | |
3828 | } | |
3829 | else | |
3830 | { | |
3831 | s->symbol.section = bfd_und_section_ptr; | |
3832 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
3833 | s->symbol.flags |= BSF_WEAK; | |
3834 | } | |
3af9a47b NC |
3835 | break; |
3836 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 3837 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3838 | break; |
3839 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 3840 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
3841 | break; |
3842 | case BFD_MACH_O_N_SECT: | |
3843 | if ((section > 0) && (section <= mdata->nsects)) | |
3844 | { | |
92bc0e80 TG |
3845 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3846 | s->symbol.value = | |
07d6d2b8 | 3847 | s->symbol.value - mdata->sections[section - 1]->addr; |
3af9a47b NC |
3848 | } |
3849 | else | |
3850 | { | |
3851 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
3852 | if (section != 0) | |
3853 | { | |
4eca0228 | 3854 | _bfd_error_handler |
695344c0 | 3855 | /* xgettext:c-format */ |
4eca0228 AM |
3856 | (_("bfd_mach_o_read_symtab_symbol: " |
3857 | "symbol \"%s\" specified invalid section %d (max %lu): " | |
3858 | "setting to undefined"), | |
3859 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 3860 | } |
92bc0e80 | 3861 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3862 | } |
3863 | break; | |
3864 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
3865 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
3866 | won't be followed by the referenced one. This looks harmless | |
3867 | unless we start using the linker. */ | |
3868 | s->symbol.flags |= BSF_INDIRECT; | |
3869 | s->symbol.section = bfd_ind_section_ptr; | |
3870 | s->symbol.value = 0; | |
3af9a47b NC |
3871 | break; |
3872 | default: | |
4eca0228 | 3873 | _bfd_error_handler |
695344c0 | 3874 | /* xgettext:c-format */ |
4eca0228 AM |
3875 | (_("bfd_mach_o_read_symtab_symbol: " |
3876 | "symbol \"%s\" specified invalid type field 0x%x: " | |
3877 | "setting to undefined"), s->symbol.name, symtype); | |
92bc0e80 | 3878 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3879 | break; |
3880 | } | |
3881 | } | |
3882 | ||
afbb9e17 | 3883 | return TRUE; |
3af9a47b NC |
3884 | } |
3885 | ||
c5012cd8 | 3886 | bfd_boolean |
ab273af8 | 3887 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 3888 | { |
046b007d TG |
3889 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3890 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3891 | ||
3892 | /* Fail if there is no symtab. */ | |
3893 | if (sym == NULL) | |
afbb9e17 | 3894 | return FALSE; |
046b007d TG |
3895 | |
3896 | /* Success if already loaded. */ | |
3897 | if (sym->strtab) | |
afbb9e17 | 3898 | return TRUE; |
3af9a47b NC |
3899 | |
3900 | if (abfd->flags & BFD_IN_MEMORY) | |
3901 | { | |
3902 | struct bfd_in_memory *b; | |
3903 | ||
3904 | b = (struct bfd_in_memory *) abfd->iostream; | |
3905 | ||
3906 | if ((sym->stroff + sym->strsize) > b->size) | |
3907 | { | |
3908 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 3909 | return FALSE; |
3af9a47b | 3910 | } |
f075ee0c | 3911 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 3912 | } |
046b007d | 3913 | else |
3af9a47b | 3914 | { |
8bdf0be1 NC |
3915 | /* See PR 21840 for a reproducer. */ |
3916 | if ((sym->strsize + 1) == 0) | |
3917 | return FALSE; | |
2bb3687b AM |
3918 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
3919 | return FALSE; | |
3920 | sym->strtab = (char *) _bfd_alloc_and_read (abfd, sym->strsize + 1, | |
3921 | sym->strsize); | |
046b007d | 3922 | if (sym->strtab == NULL) |
07d6d2b8 | 3923 | return FALSE; |
046b007d | 3924 | |
e7287c7f NC |
3925 | /* Zero terminate the string table. */ |
3926 | sym->strtab[sym->strsize] = 0; | |
3af9a47b NC |
3927 | } |
3928 | ||
afbb9e17 | 3929 | return TRUE; |
3af9a47b NC |
3930 | } |
3931 | ||
c5012cd8 | 3932 | bfd_boolean |
ab273af8 | 3933 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 3934 | { |
046b007d TG |
3935 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3936 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 3937 | unsigned long i; |
1f4361a7 | 3938 | size_t amt; |
a4425a57 | 3939 | ufile_ptr filesize; |
3af9a47b | 3940 | |
a4425a57 | 3941 | if (sym == NULL || sym->nsyms == 0 || sym->symbols) |
0a9d414a NC |
3942 | /* Return now if there are no symbols or if already loaded. */ |
3943 | return TRUE; | |
046b007d | 3944 | |
a4425a57 AM |
3945 | filesize = bfd_get_file_size (abfd); |
3946 | if (filesize != 0) | |
3947 | { | |
3948 | unsigned int wide = mach_o_wide_p (&mdata->header); | |
3949 | unsigned int symwidth | |
3950 | = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
3951 | ||
3952 | if (sym->symoff > filesize | |
3953 | || sym->nsyms > (filesize - sym->symoff) / symwidth) | |
3954 | { | |
3955 | bfd_set_error (bfd_error_file_truncated); | |
3956 | sym->nsyms = 0; | |
3957 | return FALSE; | |
3958 | } | |
3959 | } | |
1f4361a7 AM |
3960 | if (_bfd_mul_overflow (sym->nsyms, sizeof (bfd_mach_o_asymbol), &amt) |
3961 | || (sym->symbols = bfd_alloc (abfd, amt)) == NULL) | |
3af9a47b | 3962 | { |
1f4361a7 | 3963 | bfd_set_error (bfd_error_no_memory); |
64d29018 | 3964 | sym->nsyms = 0; |
afbb9e17 | 3965 | return FALSE; |
3af9a47b | 3966 | } |
a95a4550 | 3967 | |
afbb9e17 | 3968 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
64d29018 | 3969 | goto fail; |
3af9a47b NC |
3970 | |
3971 | for (i = 0; i < sym->nsyms; i++) | |
64d29018 NC |
3972 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
3973 | goto fail; | |
a95a4550 | 3974 | |
afbb9e17 | 3975 | return TRUE; |
64d29018 NC |
3976 | |
3977 | fail: | |
3978 | bfd_release (abfd, sym->symbols); | |
3979 | sym->symbols = NULL; | |
3980 | sym->nsyms = 0; | |
3981 | return FALSE; | |
3af9a47b NC |
3982 | } |
3983 | ||
3984 | static const char * | |
116c20d2 | 3985 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
3986 | { |
3987 | switch ((int) flavour) | |
3988 | { | |
15e1c58a TG |
3989 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
3990 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
3991 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
3992 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
3993 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
3994 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
3995 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
3996 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
3997 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
3998 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
3999 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
4000 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 4001 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
4002 | default: return "UNKNOWN"; |
4003 | } | |
4004 | } | |
4005 | ||
4006 | static const char * | |
116c20d2 | 4007 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
4008 | { |
4009 | switch ((int) flavour) | |
4010 | { | |
b32e07d7 TG |
4011 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
4012 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
4013 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
4014 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
4015 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
4016 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
4017 | default: return "UNKNOWN"; |
4018 | } | |
4019 | } | |
4020 | ||
806470a2 AM |
4021 | static unsigned char * |
4022 | bfd_mach_o_alloc_and_read (bfd *abfd, file_ptr filepos, size_t size) | |
4023 | { | |
2bb3687b | 4024 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) |
806470a2 | 4025 | return NULL; |
2bb3687b | 4026 | return _bfd_alloc_and_read (abfd, size, size); |
806470a2 AM |
4027 | } |
4028 | ||
452216ab | 4029 | static bfd_boolean |
ab273af8 | 4030 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
4031 | { |
4032 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 4033 | struct mach_o_str_command_external raw; |
3af9a47b | 4034 | unsigned int nameoff; |
4525c51a | 4035 | unsigned int namelen; |
3af9a47b | 4036 | |
3e6aa775 AM |
4037 | if (command->len < sizeof (raw) + 8) |
4038 | return FALSE; | |
47daa70f | 4039 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4040 | return FALSE; |
3af9a47b | 4041 | |
46d1c23b | 4042 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3e6aa775 AM |
4043 | if (nameoff > command->len) |
4044 | return FALSE; | |
3af9a47b | 4045 | |
4525c51a TG |
4046 | cmd->name_offset = nameoff; |
4047 | namelen = command->len - nameoff; | |
4048 | nameoff += command->offset; | |
806470a2 AM |
4049 | cmd->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, nameoff, namelen); |
4050 | return cmd->name_str != NULL; | |
3af9a47b NC |
4051 | } |
4052 | ||
452216ab | 4053 | static bfd_boolean |
ab273af8 | 4054 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4055 | { |
47daa70f | 4056 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4057 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
46d1c23b | 4058 | struct mach_o_dylib_command_external raw; |
3af9a47b | 4059 | unsigned int nameoff; |
4525c51a | 4060 | unsigned int namelen; |
806470a2 | 4061 | file_ptr pos; |
3af9a47b | 4062 | |
3e6aa775 AM |
4063 | if (command->len < sizeof (raw) + 8) |
4064 | return FALSE; | |
046b007d TG |
4065 | switch (command->type) |
4066 | { | |
4067 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4068 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
046b007d | 4069 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 4070 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 4071 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4072 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
4073 | break; |
4074 | default: | |
b32e07d7 | 4075 | BFD_FAIL (); |
452216ab | 4076 | return FALSE; |
046b007d | 4077 | } |
3af9a47b | 4078 | |
47daa70f | 4079 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4080 | return FALSE; |
3af9a47b | 4081 | |
46d1c23b | 4082 | nameoff = bfd_h_get_32 (abfd, raw.name); |
3e6aa775 AM |
4083 | if (nameoff > command->len) |
4084 | return FALSE; | |
46d1c23b TG |
4085 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); |
4086 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
4087 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
4088 | |
4089 | cmd->name_offset = command->offset + nameoff; | |
4525c51a | 4090 | namelen = command->len - nameoff; |
806470a2 AM |
4091 | pos = mdata->hdr_offset + cmd->name_offset; |
4092 | cmd->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, pos, namelen); | |
4093 | return cmd->name_str != NULL; | |
3af9a47b NC |
4094 | } |
4095 | ||
452216ab | 4096 | static bfd_boolean |
7a79c514 | 4097 | bfd_mach_o_read_prebound_dylib (bfd *abfd, |
07d6d2b8 | 4098 | bfd_mach_o_load_command *command) |
3af9a47b | 4099 | { |
7a79c514 TG |
4100 | bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; |
4101 | struct mach_o_prebound_dylib_command_external raw; | |
4102 | unsigned int nameoff; | |
4103 | unsigned int modoff; | |
4104 | unsigned int str_len; | |
4105 | unsigned char *str; | |
4106 | ||
3e6aa775 AM |
4107 | if (command->len < sizeof (raw) + 8) |
4108 | return FALSE; | |
47daa70f | 4109 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4110 | return FALSE; |
7a79c514 TG |
4111 | |
4112 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
4113 | modoff = bfd_h_get_32 (abfd, raw.linked_modules); | |
4114 | if (nameoff > command->len || modoff > command->len) | |
452216ab | 4115 | return FALSE; |
7a79c514 TG |
4116 | |
4117 | str_len = command->len - sizeof (raw); | |
2bb3687b | 4118 | str = _bfd_alloc_and_read (abfd, str_len, str_len); |
7a79c514 | 4119 | if (str == NULL) |
452216ab | 4120 | return FALSE; |
7a79c514 TG |
4121 | |
4122 | cmd->name_offset = command->offset + nameoff; | |
4123 | cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules); | |
4124 | cmd->linked_modules_offset = command->offset + modoff; | |
4125 | ||
4126 | cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
4127 | cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
452216ab | 4128 | return TRUE; |
7a79c514 TG |
4129 | } |
4130 | ||
452216ab | 4131 | static bfd_boolean |
7a79c514 TG |
4132 | bfd_mach_o_read_prebind_cksum (bfd *abfd, |
4133 | bfd_mach_o_load_command *command) | |
4134 | { | |
4135 | bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum; | |
4136 | struct mach_o_prebind_cksum_command_external raw; | |
3af9a47b | 4137 | |
3e6aa775 AM |
4138 | if (command->len < sizeof (raw) + 8) |
4139 | return FALSE; | |
47daa70f | 4140 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4141 | return FALSE; |
7a79c514 TG |
4142 | |
4143 | cmd->cksum = bfd_get_32 (abfd, raw.cksum); | |
452216ab | 4144 | return TRUE; |
7a79c514 TG |
4145 | } |
4146 | ||
452216ab | 4147 | static bfd_boolean |
7a79c514 TG |
4148 | bfd_mach_o_read_twolevel_hints (bfd *abfd, |
4149 | bfd_mach_o_load_command *command) | |
4150 | { | |
4151 | bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints; | |
4152 | struct mach_o_twolevel_hints_command_external raw; | |
4153 | ||
3e6aa775 AM |
4154 | if (command->len < sizeof (raw) + 8) |
4155 | return FALSE; | |
47daa70f | 4156 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4157 | return FALSE; |
7a79c514 TG |
4158 | |
4159 | cmd->offset = bfd_get_32 (abfd, raw.offset); | |
4160 | cmd->nhints = bfd_get_32 (abfd, raw.nhints); | |
452216ab | 4161 | return TRUE; |
3af9a47b NC |
4162 | } |
4163 | ||
452216ab | 4164 | static bfd_boolean |
9f4a5bd1 TG |
4165 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) |
4166 | { | |
4167 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
4168 | struct mach_o_fvmlib_command_external raw; | |
4169 | unsigned int nameoff; | |
4525c51a | 4170 | unsigned int namelen; |
9f4a5bd1 | 4171 | |
3e6aa775 AM |
4172 | if (command->len < sizeof (raw) + 8) |
4173 | return FALSE; | |
47daa70f | 4174 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4175 | return FALSE; |
9f4a5bd1 TG |
4176 | |
4177 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3e6aa775 AM |
4178 | if (nameoff > command->len) |
4179 | return FALSE; | |
9f4a5bd1 TG |
4180 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); |
4181 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
4182 | ||
4183 | fvm->name_offset = command->offset + nameoff; | |
4525c51a | 4184 | namelen = command->len - nameoff; |
806470a2 AM |
4185 | fvm->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, fvm->name_offset, |
4186 | namelen); | |
4187 | return fvm->name_str != NULL; | |
9f4a5bd1 TG |
4188 | } |
4189 | ||
452216ab | 4190 | static bfd_boolean |
ab273af8 | 4191 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4192 | { |
b32e07d7 | 4193 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4194 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 4195 | unsigned int offset; |
3af9a47b NC |
4196 | unsigned int nflavours; |
4197 | unsigned int i; | |
3e6aa775 | 4198 | struct mach_o_thread_command_external raw; |
1f4361a7 | 4199 | size_t amt; |
3af9a47b NC |
4200 | |
4201 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
4202 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
4203 | ||
b32e07d7 | 4204 | /* Count the number of threads. */ |
3af9a47b NC |
4205 | offset = 8; |
4206 | nflavours = 0; | |
3e6aa775 | 4207 | while (offset + sizeof (raw) <= command->len) |
3af9a47b | 4208 | { |
3e6aa775 | 4209 | unsigned int count; |
3af9a47b | 4210 | |
c2f09c75 | 4211 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4212 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4213 | return FALSE; |
3af9a47b | 4214 | |
3e6aa775 AM |
4215 | count = bfd_h_get_32 (abfd, raw.count); |
4216 | if (count > (unsigned) -1 / 4 | |
4217 | || command->len - (offset + sizeof (raw)) < count * 4) | |
4218 | return FALSE; | |
4219 | offset += sizeof (raw) + count * 4; | |
3af9a47b NC |
4220 | nflavours++; |
4221 | } | |
3e6aa775 AM |
4222 | if (nflavours == 0 || offset != command->len) |
4223 | return FALSE; | |
3af9a47b | 4224 | |
b32e07d7 | 4225 | /* Allocate threads. */ |
1f4361a7 AM |
4226 | if (_bfd_mul_overflow (nflavours, sizeof (bfd_mach_o_thread_flavour), &amt)) |
4227 | { | |
4228 | bfd_set_error (bfd_error_file_too_big); | |
4229 | return FALSE; | |
4230 | } | |
4231 | cmd->flavours = bfd_alloc (abfd, amt); | |
3af9a47b | 4232 | if (cmd->flavours == NULL) |
452216ab | 4233 | return FALSE; |
3af9a47b NC |
4234 | cmd->nflavours = nflavours; |
4235 | ||
4236 | offset = 8; | |
4237 | nflavours = 0; | |
4238 | while (offset != command->len) | |
4239 | { | |
c2f09c75 | 4240 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4241 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4242 | return FALSE; |
3af9a47b | 4243 | |
46d1c23b TG |
4244 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
4245 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
4246 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
4247 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
4248 | nflavours++; |
4249 | } | |
4250 | ||
4251 | for (i = 0; i < nflavours; i++) | |
4252 | { | |
4253 | asection *bfdsec; | |
4254 | unsigned int snamelen; | |
4255 | char *sname; | |
4256 | const char *flavourstr; | |
4257 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
4258 | unsigned int j = 0; |
4259 | ||
3af9a47b NC |
4260 | switch (mdata->header.cputype) |
4261 | { | |
4262 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 4263 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
707e555b TG |
4264 | flavourstr = |
4265 | bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4266 | break; |
4267 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 4268 | case BFD_MACH_O_CPU_TYPE_X86_64: |
707e555b TG |
4269 | flavourstr = |
4270 | bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4271 | break; |
4272 | default: | |
4273 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
4274 | break; | |
4275 | } | |
a95a4550 | 4276 | |
3af9a47b | 4277 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 4278 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b | 4279 | if (sname == NULL) |
452216ab | 4280 | return FALSE; |
3af9a47b NC |
4281 | |
4282 | for (;;) | |
4283 | { | |
a95a4550 AM |
4284 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
4285 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 4286 | break; |
a95a4550 | 4287 | j++; |
3af9a47b NC |
4288 | } |
4289 | ||
117ed4f8 | 4290 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 4291 | |
3af9a47b NC |
4292 | bfdsec->vma = 0; |
4293 | bfdsec->lma = 0; | |
eea6121a | 4294 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
4295 | bfdsec->filepos = cmd->flavours[i].offset; |
4296 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
4297 | |
4298 | cmd->section = bfdsec; | |
4299 | } | |
4300 | ||
452216ab | 4301 | return TRUE; |
3af9a47b NC |
4302 | } |
4303 | ||
452216ab | 4304 | static bfd_boolean |
a4425a57 AM |
4305 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command, |
4306 | ufile_ptr filesize) | |
3af9a47b | 4307 | { |
046b007d | 4308 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 4309 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4310 | |
4311 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
4312 | ||
46d1c23b TG |
4313 | { |
4314 | struct mach_o_dysymtab_command_external raw; | |
4315 | ||
3e6aa775 AM |
4316 | if (command->len < sizeof (raw) + 8) |
4317 | return FALSE; | |
47daa70f | 4318 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4319 | return FALSE; |
3af9a47b | 4320 | |
46d1c23b TG |
4321 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
4322 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
4323 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
4324 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
4325 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
4326 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
4327 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
4328 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
4329 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
4330 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
4331 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
4332 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
4333 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
4334 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
4335 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
4336 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
4337 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
4338 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
4339 | } | |
046b007d TG |
4340 | |
4341 | if (cmd->nmodtab != 0) | |
4342 | { | |
046b007d TG |
4343 | unsigned int i; |
4344 | int wide = bfd_mach_o_wide_p (abfd); | |
4345 | unsigned int module_len = wide ? 56 : 52; | |
1f4361a7 | 4346 | size_t amt; |
046b007d | 4347 | |
a4425a57 AM |
4348 | if (cmd->modtaboff > filesize |
4349 | || cmd->nmodtab > (filesize - cmd->modtaboff) / module_len) | |
4350 | { | |
4351 | bfd_set_error (bfd_error_file_truncated); | |
4352 | return FALSE; | |
4353 | } | |
1f4361a7 AM |
4354 | if (_bfd_mul_overflow (cmd->nmodtab, |
4355 | sizeof (bfd_mach_o_dylib_module), &amt)) | |
4356 | { | |
4357 | bfd_set_error (bfd_error_file_too_big); | |
4358 | return FALSE; | |
4359 | } | |
4360 | cmd->dylib_module = bfd_alloc (abfd, amt); | |
046b007d | 4361 | if (cmd->dylib_module == NULL) |
07d6d2b8 | 4362 | return FALSE; |
046b007d TG |
4363 | |
4364 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
07d6d2b8 | 4365 | return FALSE; |
046b007d TG |
4366 | |
4367 | for (i = 0; i < cmd->nmodtab; i++) | |
07d6d2b8 AM |
4368 | { |
4369 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
4370 | unsigned long v; | |
4371 | unsigned char buf[56]; | |
4372 | ||
4373 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) | |
4374 | return FALSE; | |
4375 | ||
4376 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
4377 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
4378 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
4379 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
4380 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
4381 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
4382 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
4383 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
4384 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
4385 | v = bfd_h_get_32 (abfd, buf +36); | |
4386 | module->iinit = v & 0xffff; | |
4387 | module->iterm = (v >> 16) & 0xffff; | |
4388 | v = bfd_h_get_32 (abfd, buf + 40); | |
4389 | module->ninit = v & 0xffff; | |
4390 | module->nterm = (v >> 16) & 0xffff; | |
4391 | if (wide) | |
4392 | { | |
4393 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
4394 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
4395 | } | |
4396 | else | |
4397 | { | |
4398 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
4399 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
4400 | } | |
4401 | } | |
046b007d | 4402 | } |
afbb9e17 | 4403 | |
046b007d TG |
4404 | if (cmd->ntoc != 0) |
4405 | { | |
64d29018 | 4406 | unsigned long i; |
1f4361a7 | 4407 | size_t amt; |
a4425a57 | 4408 | struct mach_o_dylib_table_of_contents_external raw; |
046b007d | 4409 | |
a4425a57 AM |
4410 | if (cmd->tocoff > filesize |
4411 | || cmd->ntoc > (filesize - cmd->tocoff) / sizeof (raw)) | |
4412 | { | |
4413 | bfd_set_error (bfd_error_file_truncated); | |
4414 | return FALSE; | |
4415 | } | |
1f4361a7 AM |
4416 | if (_bfd_mul_overflow (cmd->ntoc, |
4417 | sizeof (bfd_mach_o_dylib_table_of_content), &amt)) | |
4418 | { | |
4419 | bfd_set_error (bfd_error_file_too_big); | |
4420 | return FALSE; | |
4421 | } | |
4422 | cmd->dylib_toc = bfd_alloc (abfd, amt); | |
046b007d | 4423 | if (cmd->dylib_toc == NULL) |
07d6d2b8 | 4424 | return FALSE; |
046b007d TG |
4425 | |
4426 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
07d6d2b8 | 4427 | return FALSE; |
046b007d TG |
4428 | |
4429 | for (i = 0; i < cmd->ntoc; i++) | |
07d6d2b8 | 4430 | { |
07d6d2b8 | 4431 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; |
046b007d | 4432 | |
07d6d2b8 AM |
4433 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4434 | return FALSE; | |
046b007d | 4435 | |
07d6d2b8 AM |
4436 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
4437 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
4438 | } | |
046b007d TG |
4439 | } |
4440 | ||
4441 | if (cmd->nindirectsyms != 0) | |
4442 | { | |
046b007d | 4443 | unsigned int i; |
1f4361a7 | 4444 | size_t amt; |
046b007d | 4445 | |
a4425a57 AM |
4446 | if (cmd->indirectsymoff > filesize |
4447 | || cmd->nindirectsyms > (filesize - cmd->indirectsymoff) / 4) | |
4448 | { | |
4449 | bfd_set_error (bfd_error_file_truncated); | |
4450 | return FALSE; | |
4451 | } | |
1f4361a7 AM |
4452 | if (_bfd_mul_overflow (cmd->nindirectsyms, sizeof (unsigned int), &amt)) |
4453 | { | |
4454 | bfd_set_error (bfd_error_file_too_big); | |
4455 | return FALSE; | |
4456 | } | |
4457 | cmd->indirect_syms = bfd_alloc (abfd, amt); | |
046b007d | 4458 | if (cmd->indirect_syms == NULL) |
07d6d2b8 | 4459 | return FALSE; |
046b007d TG |
4460 | |
4461 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4462 | return FALSE; |
046b007d TG |
4463 | |
4464 | for (i = 0; i < cmd->nindirectsyms; i++) | |
07d6d2b8 AM |
4465 | { |
4466 | unsigned char raw[4]; | |
4467 | unsigned int *is = &cmd->indirect_syms[i]; | |
046b007d | 4468 | |
07d6d2b8 AM |
4469 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
4470 | return FALSE; | |
046b007d | 4471 | |
07d6d2b8 AM |
4472 | *is = bfd_h_get_32 (abfd, raw); |
4473 | } | |
046b007d TG |
4474 | } |
4475 | ||
4476 | if (cmd->nextrefsyms != 0) | |
4477 | { | |
046b007d TG |
4478 | unsigned long v; |
4479 | unsigned int i; | |
1f4361a7 | 4480 | size_t amt; |
046b007d | 4481 | |
a4425a57 AM |
4482 | if (cmd->extrefsymoff > filesize |
4483 | || cmd->nextrefsyms > (filesize - cmd->extrefsymoff) / 4) | |
4484 | { | |
4485 | bfd_set_error (bfd_error_file_truncated); | |
4486 | return FALSE; | |
4487 | } | |
1f4361a7 AM |
4488 | if (_bfd_mul_overflow (cmd->nextrefsyms, |
4489 | sizeof (bfd_mach_o_dylib_reference), &amt)) | |
4490 | { | |
4491 | bfd_set_error (bfd_error_file_too_big); | |
4492 | return FALSE; | |
4493 | } | |
4494 | cmd->ext_refs = bfd_alloc (abfd, amt); | |
046b007d | 4495 | if (cmd->ext_refs == NULL) |
07d6d2b8 | 4496 | return FALSE; |
046b007d TG |
4497 | |
4498 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4499 | return FALSE; |
046b007d TG |
4500 | |
4501 | for (i = 0; i < cmd->nextrefsyms; i++) | |
07d6d2b8 AM |
4502 | { |
4503 | unsigned char raw[4]; | |
4504 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
4505 | ||
4506 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) | |
4507 | return FALSE; | |
4508 | ||
4509 | /* Fields isym and flags are written as bit-fields, thus we need | |
4510 | a specific processing for endianness. */ | |
4511 | v = bfd_h_get_32 (abfd, raw); | |
4512 | if (bfd_big_endian (abfd)) | |
4513 | { | |
4514 | ref->isym = (v >> 8) & 0xffffff; | |
4515 | ref->flags = v & 0xff; | |
4516 | } | |
4517 | else | |
4518 | { | |
4519 | ref->isym = v & 0xffffff; | |
4520 | ref->flags = (v >> 24) & 0xff; | |
4521 | } | |
4522 | } | |
046b007d | 4523 | } |
3af9a47b | 4524 | |
b32e07d7 | 4525 | if (mdata->dysymtab) |
452216ab | 4526 | return FALSE; |
b32e07d7 TG |
4527 | mdata->dysymtab = cmd; |
4528 | ||
452216ab | 4529 | return TRUE; |
3af9a47b NC |
4530 | } |
4531 | ||
452216ab | 4532 | static bfd_boolean |
a4425a57 AM |
4533 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command, |
4534 | ufile_ptr filesize) | |
3af9a47b | 4535 | { |
046b007d TG |
4536 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
4537 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 4538 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
4539 | |
4540 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
4541 | ||
3e6aa775 AM |
4542 | if (command->len < sizeof (raw) + 8) |
4543 | return FALSE; | |
47daa70f | 4544 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4545 | return FALSE; |
a95a4550 | 4546 | |
46d1c23b TG |
4547 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
4548 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
4549 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
4550 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
4551 | symtab->symbols = NULL; |
4552 | symtab->strtab = NULL; | |
3af9a47b | 4553 | |
a4425a57 AM |
4554 | if (symtab->symoff > filesize |
4555 | || symtab->nsyms > (filesize - symtab->symoff) / BFD_MACH_O_NLIST_SIZE | |
4556 | || symtab->stroff > filesize | |
4557 | || symtab->strsize > filesize - symtab->stroff) | |
4558 | { | |
4559 | bfd_set_error (bfd_error_file_truncated); | |
4560 | return FALSE; | |
4561 | } | |
4562 | ||
046b007d | 4563 | if (symtab->nsyms != 0) |
15e1c58a TG |
4564 | abfd->flags |= HAS_SYMS; |
4565 | ||
046b007d | 4566 | if (mdata->symtab) |
452216ab | 4567 | return FALSE; |
046b007d | 4568 | mdata->symtab = symtab; |
452216ab | 4569 | return TRUE; |
3af9a47b NC |
4570 | } |
4571 | ||
452216ab | 4572 | static bfd_boolean |
ab273af8 | 4573 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
4574 | { |
4575 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
4576 | |
4577 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
4578 | ||
3e6aa775 AM |
4579 | if (command->len < 16 + 8) |
4580 | return FALSE; | |
47daa70f | 4581 | if (bfd_bread (cmd->uuid, 16, abfd) != 16) |
452216ab | 4582 | return FALSE; |
15e1c58a | 4583 | |
452216ab | 4584 | return TRUE; |
15e1c58a TG |
4585 | } |
4586 | ||
452216ab | 4587 | static bfd_boolean |
ab273af8 | 4588 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4589 | { |
4590 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 4591 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 4592 | |
3e6aa775 AM |
4593 | if (command->len < sizeof (raw) + 8) |
4594 | return FALSE; | |
47daa70f | 4595 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4596 | return FALSE; |
046b007d | 4597 | |
46d1c23b TG |
4598 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
4599 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
452216ab | 4600 | return TRUE; |
046b007d TG |
4601 | } |
4602 | ||
452216ab | 4603 | static bfd_boolean |
ab273af8 | 4604 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4605 | { |
4606 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 4607 | struct mach_o_str_command_external raw; |
046b007d TG |
4608 | unsigned long off; |
4609 | ||
3e6aa775 AM |
4610 | if (command->len < sizeof (raw) + 8) |
4611 | return FALSE; | |
47daa70f | 4612 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4613 | return FALSE; |
046b007d | 4614 | |
46d1c23b | 4615 | off = bfd_get_32 (abfd, raw.str); |
3e6aa775 AM |
4616 | if (off > command->len) |
4617 | return FALSE; | |
4618 | ||
046b007d TG |
4619 | cmd->stroff = command->offset + off; |
4620 | cmd->str_len = command->len - off; | |
806470a2 AM |
4621 | cmd->str = (char *) bfd_mach_o_alloc_and_read (abfd, cmd->stroff, |
4622 | cmd->str_len); | |
4623 | return cmd->str != NULL; | |
c9ffd2ea TG |
4624 | } |
4625 | ||
4626 | static bfd_boolean | |
4627 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd) | |
4628 | { | |
4629 | /* Read rebase content. */ | |
4630 | if (cmd->rebase_content == NULL && cmd->rebase_size != 0) | |
4631 | { | |
2bb3687b AM |
4632 | cmd->rebase_content |
4633 | = bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size); | |
c9ffd2ea TG |
4634 | if (cmd->rebase_content == NULL) |
4635 | return FALSE; | |
4636 | } | |
4637 | ||
4638 | /* Read bind content. */ | |
4639 | if (cmd->bind_content == NULL && cmd->bind_size != 0) | |
4640 | { | |
2bb3687b AM |
4641 | cmd->bind_content |
4642 | = bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size); | |
c9ffd2ea TG |
4643 | if (cmd->bind_content == NULL) |
4644 | return FALSE; | |
4645 | } | |
4646 | ||
4647 | /* Read weak bind content. */ | |
4648 | if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0) | |
4649 | { | |
4650 | cmd->weak_bind_content = bfd_mach_o_alloc_and_read | |
4651 | (abfd, cmd->weak_bind_off, cmd->weak_bind_size); | |
4652 | if (cmd->weak_bind_content == NULL) | |
4653 | return FALSE; | |
4654 | } | |
4655 | ||
4656 | /* Read lazy bind content. */ | |
4657 | if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0) | |
4658 | { | |
4659 | cmd->lazy_bind_content = bfd_mach_o_alloc_and_read | |
4660 | (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size); | |
4661 | if (cmd->lazy_bind_content == NULL) | |
4662 | return FALSE; | |
4663 | } | |
4664 | ||
4665 | /* Read export content. */ | |
4666 | if (cmd->export_content == NULL && cmd->export_size != 0) | |
4667 | { | |
4668 | cmd->export_content = bfd_mach_o_alloc_and_read | |
4669 | (abfd, cmd->export_off, cmd->export_size); | |
4670 | if (cmd->export_content == NULL) | |
4671 | return FALSE; | |
4672 | } | |
4673 | ||
4674 | return TRUE; | |
4675 | } | |
4676 | ||
452216ab | 4677 | static bfd_boolean |
ab273af8 | 4678 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
4679 | { |
4680 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 4681 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 4682 | |
3e6aa775 AM |
4683 | if (command->len < sizeof (raw) + 8) |
4684 | return FALSE; | |
47daa70f | 4685 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4686 | return FALSE; |
ad86f1fb | 4687 | |
46d1c23b TG |
4688 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
4689 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
c9ffd2ea | 4690 | cmd->rebase_content = NULL; |
46d1c23b TG |
4691 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); |
4692 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
c9ffd2ea | 4693 | cmd->bind_content = NULL; |
46d1c23b TG |
4694 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); |
4695 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
c9ffd2ea | 4696 | cmd->weak_bind_content = NULL; |
46d1c23b TG |
4697 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); |
4698 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
c9ffd2ea | 4699 | cmd->lazy_bind_content = NULL; |
46d1c23b TG |
4700 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); |
4701 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
c9ffd2ea | 4702 | cmd->export_content = NULL; |
452216ab | 4703 | return TRUE; |
ad86f1fb TG |
4704 | } |
4705 | ||
edbdea0e TG |
4706 | static bfd_boolean |
4707 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
4708 | { | |
4709 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
4710 | struct mach_o_version_min_command_external raw; | |
edbdea0e | 4711 | |
3e6aa775 AM |
4712 | if (command->len < sizeof (raw) + 8) |
4713 | return FALSE; | |
47daa70f | 4714 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
edbdea0e TG |
4715 | return FALSE; |
4716 | ||
fc7b364a RB |
4717 | cmd->version = bfd_get_32 (abfd, raw.version); |
4718 | cmd->sdk = bfd_get_32 (abfd, raw.sdk); | |
edbdea0e TG |
4719 | return TRUE; |
4720 | } | |
4721 | ||
fc55a902 TG |
4722 | static bfd_boolean |
4723 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) | |
4724 | { | |
4725 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4726 | struct mach_o_encryption_info_command_external raw; | |
4727 | ||
3e6aa775 AM |
4728 | if (command->len < sizeof (raw) + 8) |
4729 | return FALSE; | |
47daa70f TG |
4730 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4731 | return FALSE; | |
4732 | ||
4733 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4734 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4735 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4736 | return TRUE; | |
4737 | } | |
4738 | ||
4739 | static bfd_boolean | |
4740 | bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command) | |
4741 | { | |
4742 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4743 | struct mach_o_encryption_info_64_command_external raw; | |
4744 | ||
3e6aa775 AM |
4745 | if (command->len < sizeof (raw) + 8) |
4746 | return FALSE; | |
47daa70f | 4747 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
fc55a902 TG |
4748 | return FALSE; |
4749 | ||
4750 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4751 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4752 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4753 | return TRUE; | |
4754 | } | |
4755 | ||
1778ad74 TG |
4756 | static bfd_boolean |
4757 | bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command) | |
4758 | { | |
4759 | bfd_mach_o_main_command *cmd = &command->command.main; | |
4760 | struct mach_o_entry_point_command_external raw; | |
4761 | ||
3e6aa775 AM |
4762 | if (command->len < sizeof (raw) + 8) |
4763 | return FALSE; | |
47daa70f | 4764 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4765 | return FALSE; |
4766 | ||
4767 | cmd->entryoff = bfd_get_64 (abfd, raw.entryoff); | |
4768 | cmd->stacksize = bfd_get_64 (abfd, raw.stacksize); | |
4769 | return TRUE; | |
4770 | } | |
4771 | ||
4772 | static bfd_boolean | |
4773 | bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command) | |
4774 | { | |
4775 | bfd_mach_o_source_version_command *cmd = &command->command.source_version; | |
4776 | struct mach_o_source_version_command_external raw; | |
4777 | bfd_uint64_t ver; | |
4778 | ||
3e6aa775 AM |
4779 | if (command->len < sizeof (raw) + 8) |
4780 | return FALSE; | |
47daa70f | 4781 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4782 | return FALSE; |
4783 | ||
4784 | ver = bfd_get_64 (abfd, raw.version); | |
4785 | /* Note: we use a serie of shift to avoid shift > 32 (for which gcc | |
4786 | generates warnings) in case of the host doesn't support 64 bit | |
4787 | integers. */ | |
4788 | cmd->e = ver & 0x3ff; | |
4789 | ver >>= 10; | |
4790 | cmd->d = ver & 0x3ff; | |
4791 | ver >>= 10; | |
4792 | cmd->c = ver & 0x3ff; | |
4793 | ver >>= 10; | |
4794 | cmd->b = ver & 0x3ff; | |
4795 | ver >>= 10; | |
4796 | cmd->a = ver & 0xffffff; | |
4797 | return TRUE; | |
4798 | } | |
4799 | ||
fc7b364a RB |
4800 | static bfd_boolean |
4801 | bfd_mach_o_read_note (bfd *abfd, bfd_mach_o_load_command *command) | |
4802 | { | |
4803 | bfd_mach_o_note_command *cmd = &command->command.note; | |
4804 | struct mach_o_note_command_external raw; | |
4805 | ||
3e6aa775 AM |
4806 | if (command->len < sizeof (raw) + 8) |
4807 | return FALSE; | |
fc7b364a RB |
4808 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4809 | return FALSE; | |
4810 | ||
4811 | memcpy (cmd->data_owner, raw.data_owner, 16); | |
4812 | cmd->offset = bfd_get_64 (abfd, raw.offset); | |
4813 | cmd->size = bfd_get_64 (abfd, raw.size); | |
4814 | return TRUE; | |
4815 | } | |
4816 | ||
4817 | static bfd_boolean | |
4818 | bfd_mach_o_read_build_version (bfd *abfd, bfd_mach_o_load_command *command) | |
4819 | { | |
4820 | bfd_mach_o_build_version_command *cmd = &command->command.build_version; | |
4821 | struct mach_o_build_version_command_external raw; | |
4822 | ||
3e6aa775 AM |
4823 | if (command->len < sizeof (raw) + 8) |
4824 | return FALSE; | |
fc7b364a RB |
4825 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4826 | return FALSE; | |
4827 | ||
4828 | cmd->platform = bfd_get_32 (abfd, raw.platform); | |
4829 | cmd->minos = bfd_get_32 (abfd, raw.minos); | |
4830 | cmd->sdk = bfd_get_32 (abfd, raw.sdk); | |
4831 | cmd->ntools = bfd_get_32 (abfd, raw.ntools); | |
4832 | return TRUE; | |
4833 | } | |
4834 | ||
452216ab | 4835 | static bfd_boolean |
ab273af8 | 4836 | bfd_mach_o_read_segment (bfd *abfd, |
07d6d2b8 AM |
4837 | bfd_mach_o_load_command *command, |
4838 | unsigned int wide) | |
3af9a47b | 4839 | { |
3af9a47b NC |
4840 | bfd_mach_o_segment_command *seg = &command->command.segment; |
4841 | unsigned long i; | |
a95a4550 | 4842 | |
1e8a024a TG |
4843 | if (wide) |
4844 | { | |
46d1c23b TG |
4845 | struct mach_o_segment_command_64_external raw; |
4846 | ||
1e8a024a | 4847 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 4848 | |
3e6aa775 AM |
4849 | if (command->len < sizeof (raw) + 8) |
4850 | return FALSE; | |
47daa70f | 4851 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4852 | return FALSE; |
3af9a47b | 4853 | |
46d1c23b | 4854 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4855 | seg->segname[16] = '\0'; |
1e8a024a | 4856 | |
46d1c23b TG |
4857 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
4858 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
4859 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
4860 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
4861 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4862 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4863 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4864 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
4865 | } |
4866 | else | |
4867 | { | |
46d1c23b TG |
4868 | struct mach_o_segment_command_32_external raw; |
4869 | ||
1e8a024a TG |
4870 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
4871 | ||
3e6aa775 AM |
4872 | if (command->len < sizeof (raw) + 8) |
4873 | return FALSE; | |
47daa70f | 4874 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4875 | return FALSE; |
1e8a024a | 4876 | |
46d1c23b | 4877 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4878 | seg->segname[16] = '\0'; |
1e8a024a | 4879 | |
46d1c23b TG |
4880 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
4881 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
4882 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
4883 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
4884 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4885 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4886 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4887 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 4888 | } |
9d4b6009 TG |
4889 | seg->sect_head = NULL; |
4890 | seg->sect_tail = NULL; | |
3af9a47b | 4891 | |
f1bde64c | 4892 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 4893 | { |
f1bde64c | 4894 | asection *sec; |
a95a4550 | 4895 | |
47daa70f | 4896 | sec = bfd_mach_o_read_section (abfd, seg->initprot, wide); |
f1bde64c | 4897 | if (sec == NULL) |
07d6d2b8 | 4898 | return FALSE; |
f1bde64c | 4899 | |
c9ffd2ea TG |
4900 | bfd_mach_o_append_section_to_segment |
4901 | (seg, bfd_mach_o_get_mach_o_section (sec)); | |
3af9a47b NC |
4902 | } |
4903 | ||
452216ab | 4904 | return TRUE; |
3af9a47b NC |
4905 | } |
4906 | ||
452216ab | 4907 | static bfd_boolean |
ab273af8 | 4908 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4909 | { |
ab273af8 | 4910 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
4911 | } |
4912 | ||
452216ab | 4913 | static bfd_boolean |
ab273af8 | 4914 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4915 | { |
ab273af8 | 4916 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
4917 | } |
4918 | ||
452216ab | 4919 | static bfd_boolean |
a4425a57 AM |
4920 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command, |
4921 | ufile_ptr filesize) | |
3af9a47b | 4922 | { |
47daa70f | 4923 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
46d1c23b TG |
4924 | struct mach_o_load_command_external raw; |
4925 | unsigned int cmd; | |
3af9a47b | 4926 | |
046b007d | 4927 | /* Read command type and length. */ |
47daa70f | 4928 | if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0 |
46d1c23b | 4929 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
452216ab | 4930 | return FALSE; |
3af9a47b | 4931 | |
46d1c23b | 4932 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
3e6aa775 | 4933 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; |
46d1c23b TG |
4934 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; |
4935 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3e6aa775 AM |
4936 | if (command->len < 8 || command->len % 4 != 0) |
4937 | return FALSE; | |
3af9a47b NC |
4938 | |
4939 | switch (command->type) | |
4940 | { | |
4941 | case BFD_MACH_O_LC_SEGMENT: | |
452216ab TG |
4942 | if (!bfd_mach_o_read_segment_32 (abfd, command)) |
4943 | return FALSE; | |
1e8a024a TG |
4944 | break; |
4945 | case BFD_MACH_O_LC_SEGMENT_64: | |
452216ab TG |
4946 | if (!bfd_mach_o_read_segment_64 (abfd, command)) |
4947 | return FALSE; | |
3af9a47b NC |
4948 | break; |
4949 | case BFD_MACH_O_LC_SYMTAB: | |
a4425a57 | 4950 | if (!bfd_mach_o_read_symtab (abfd, command, filesize)) |
452216ab | 4951 | return FALSE; |
3af9a47b NC |
4952 | break; |
4953 | case BFD_MACH_O_LC_SYMSEG: | |
4954 | break; | |
4955 | case BFD_MACH_O_LC_THREAD: | |
4956 | case BFD_MACH_O_LC_UNIXTHREAD: | |
452216ab TG |
4957 | if (!bfd_mach_o_read_thread (abfd, command)) |
4958 | return FALSE; | |
3af9a47b NC |
4959 | break; |
4960 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
4961 | case BFD_MACH_O_LC_ID_DYLINKER: | |
10be66a4 | 4962 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
452216ab TG |
4963 | if (!bfd_mach_o_read_dylinker (abfd, command)) |
4964 | return FALSE; | |
3af9a47b NC |
4965 | break; |
4966 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4967 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
3af9a47b NC |
4968 | case BFD_MACH_O_LC_ID_DYLIB: |
4969 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 4970 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4971 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
452216ab TG |
4972 | if (!bfd_mach_o_read_dylib (abfd, command)) |
4973 | return FALSE; | |
3af9a47b NC |
4974 | break; |
4975 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
452216ab TG |
4976 | if (!bfd_mach_o_read_prebound_dylib (abfd, command)) |
4977 | return FALSE; | |
3af9a47b NC |
4978 | break; |
4979 | case BFD_MACH_O_LC_LOADFVMLIB: | |
4980 | case BFD_MACH_O_LC_IDFVMLIB: | |
452216ab TG |
4981 | if (!bfd_mach_o_read_fvmlib (abfd, command)) |
4982 | return FALSE; | |
9f4a5bd1 | 4983 | break; |
3af9a47b NC |
4984 | case BFD_MACH_O_LC_IDENT: |
4985 | case BFD_MACH_O_LC_FVMFILE: | |
4986 | case BFD_MACH_O_LC_PREPAGE: | |
4987 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 4988 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 4989 | break; |
3af9a47b | 4990 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
4991 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
4992 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
4993 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 4994 | case BFD_MACH_O_LC_RPATH: |
452216ab | 4995 | if (!bfd_mach_o_read_str (abfd, command)) |
07d6d2b8 | 4996 | return FALSE; |
3af9a47b NC |
4997 | break; |
4998 | case BFD_MACH_O_LC_DYSYMTAB: | |
a4425a57 | 4999 | if (!bfd_mach_o_read_dysymtab (abfd, command, filesize)) |
452216ab | 5000 | return FALSE; |
3af9a47b | 5001 | break; |
3af9a47b | 5002 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
452216ab TG |
5003 | if (!bfd_mach_o_read_prebind_cksum (abfd, command)) |
5004 | return FALSE; | |
7a79c514 TG |
5005 | break; |
5006 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
452216ab TG |
5007 | if (!bfd_mach_o_read_twolevel_hints (abfd, command)) |
5008 | return FALSE; | |
3af9a47b | 5009 | break; |
15e1c58a | 5010 | case BFD_MACH_O_LC_UUID: |
452216ab TG |
5011 | if (!bfd_mach_o_read_uuid (abfd, command)) |
5012 | return FALSE; | |
15e1c58a TG |
5013 | break; |
5014 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 5015 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 5016 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
1778ad74 TG |
5017 | case BFD_MACH_O_LC_DATA_IN_CODE: |
5018 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: | |
47daa70f | 5019 | case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT: |
452216ab TG |
5020 | if (!bfd_mach_o_read_linkedit (abfd, command)) |
5021 | return FALSE; | |
15e1c58a | 5022 | break; |
fc55a902 TG |
5023 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
5024 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
452216ab | 5025 | return FALSE; |
fc55a902 | 5026 | break; |
47daa70f TG |
5027 | case BFD_MACH_O_LC_ENCRYPTION_INFO_64: |
5028 | if (!bfd_mach_o_read_encryption_info_64 (abfd, command)) | |
5029 | return FALSE; | |
5030 | break; | |
ad86f1fb | 5031 | case BFD_MACH_O_LC_DYLD_INFO: |
452216ab TG |
5032 | if (!bfd_mach_o_read_dyld_info (abfd, command)) |
5033 | return FALSE; | |
ad86f1fb | 5034 | break; |
edbdea0e TG |
5035 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
5036 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
47daa70f | 5037 | case BFD_MACH_O_LC_VERSION_MIN_WATCHOS: |
fc7b364a | 5038 | case BFD_MACH_O_LC_VERSION_MIN_TVOS: |
edbdea0e | 5039 | if (!bfd_mach_o_read_version_min (abfd, command)) |
452216ab | 5040 | return FALSE; |
edbdea0e | 5041 | break; |
1778ad74 TG |
5042 | case BFD_MACH_O_LC_MAIN: |
5043 | if (!bfd_mach_o_read_main (abfd, command)) | |
452216ab | 5044 | return FALSE; |
1778ad74 TG |
5045 | break; |
5046 | case BFD_MACH_O_LC_SOURCE_VERSION: | |
5047 | if (!bfd_mach_o_read_source_version (abfd, command)) | |
452216ab | 5048 | return FALSE; |
1778ad74 | 5049 | break; |
ddea148b | 5050 | case BFD_MACH_O_LC_LINKER_OPTIONS: |
fc7b364a RB |
5051 | break; |
5052 | case BFD_MACH_O_LC_NOTE: | |
5053 | if (!bfd_mach_o_read_note (abfd, command)) | |
4b24dd1a | 5054 | return FALSE; |
fc7b364a | 5055 | break; |
ddea148b | 5056 | case BFD_MACH_O_LC_BUILD_VERSION: |
fc7b364a | 5057 | if (!bfd_mach_o_read_build_version (abfd, command)) |
4b24dd1a | 5058 | return FALSE; |
ddea148b | 5059 | break; |
3af9a47b | 5060 | default: |
86eafac0 | 5061 | command->len = 0; |
871b3ab2 | 5062 | _bfd_error_handler (_("%pB: unknown load command %#x"), |
d42c267e | 5063 | abfd, command->type); |
86eafac0 | 5064 | return FALSE; |
3af9a47b NC |
5065 | } |
5066 | ||
452216ab | 5067 | return TRUE; |
3af9a47b NC |
5068 | } |
5069 | ||
96d3b80f | 5070 | static bfd_boolean |
116c20d2 | 5071 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 5072 | { |
046b007d | 5073 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea | 5074 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5075 | long csect = 0; |
1f4361a7 | 5076 | size_t amt; |
a95a4550 | 5077 | |
15e1c58a | 5078 | /* Count total number of sections. */ |
3af9a47b NC |
5079 | mdata->nsects = 0; |
5080 | ||
c9ffd2ea | 5081 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5082 | { |
c9ffd2ea TG |
5083 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
5084 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 5085 | { |
c9ffd2ea | 5086 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
e84d6fca | 5087 | |
3af9a47b NC |
5088 | mdata->nsects += seg->nsects; |
5089 | } | |
5090 | } | |
5091 | ||
15e1c58a | 5092 | /* Allocate sections array. */ |
1f4361a7 AM |
5093 | if (_bfd_mul_overflow (mdata->nsects, sizeof (bfd_mach_o_section *), &amt)) |
5094 | { | |
5095 | bfd_set_error (bfd_error_file_too_big); | |
5096 | return FALSE; | |
5097 | } | |
5098 | mdata->sections = bfd_alloc (abfd, amt); | |
96d3b80f AM |
5099 | if (mdata->sections == NULL && mdata->nsects != 0) |
5100 | return FALSE; | |
15e1c58a TG |
5101 | |
5102 | /* Fill the array. */ | |
3af9a47b NC |
5103 | csect = 0; |
5104 | ||
c9ffd2ea | 5105 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5106 | { |
c9ffd2ea TG |
5107 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
5108 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 5109 | { |
c9ffd2ea | 5110 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
07d6d2b8 | 5111 | bfd_mach_o_section *sec; |
3af9a47b NC |
5112 | |
5113 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); | |
5114 | ||
07d6d2b8 | 5115 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
f1bde64c | 5116 | mdata->sections[csect++] = sec; |
3af9a47b NC |
5117 | } |
5118 | } | |
96d3b80f | 5119 | return TRUE; |
3af9a47b NC |
5120 | } |
5121 | ||
afbb9e17 | 5122 | static bfd_boolean |
116c20d2 | 5123 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 5124 | { |
046b007d | 5125 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
5126 | bfd_mach_o_thread_command *thr = NULL; |
5127 | bfd_mach_o_load_command *cmd; | |
3af9a47b NC |
5128 | unsigned long i; |
5129 | ||
c9ffd2ea TG |
5130 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
5131 | if (cmd->type == BFD_MACH_O_LC_THREAD | |
5132 | || cmd->type == BFD_MACH_O_LC_UNIXTHREAD) | |
afbb9e17 | 5133 | { |
07d6d2b8 AM |
5134 | thr = &cmd->command.thread; |
5135 | break; | |
afbb9e17 | 5136 | } |
c9ffd2ea | 5137 | else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1) |
c0fd7846 | 5138 | { |
c9ffd2ea | 5139 | bfd_mach_o_main_command *main_cmd = &cmd->command.main; |
c0fd7846 | 5140 | bfd_mach_o_section *text_sect = mdata->sections[0]; |
c9ffd2ea | 5141 | |
c0fd7846 TG |
5142 | if (text_sect) |
5143 | { | |
5144 | abfd->start_address = main_cmd->entryoff | |
5145 | + (text_sect->addr - text_sect->offset); | |
5146 | return TRUE; | |
5147 | } | |
5148 | } | |
3af9a47b | 5149 | |
5ee43bc4 | 5150 | /* An object file has no start address, so do not fail if not found. */ |
c9ffd2ea | 5151 | if (thr == NULL) |
5ee43bc4 | 5152 | return TRUE; |
3af9a47b | 5153 | |
afbb9e17 | 5154 | /* FIXME: create a subtarget hook ? */ |
c9ffd2ea | 5155 | for (i = 0; i < thr->nflavours; i++) |
3af9a47b | 5156 | { |
a95a4550 | 5157 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
c9ffd2ea | 5158 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
5159 | { |
5160 | unsigned char buf[4]; | |
5161 | ||
c9ffd2ea | 5162 | if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0 |
07d6d2b8 | 5163 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 5164 | return FALSE; |
3af9a47b NC |
5165 | |
5166 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
5167 | } | |
a95a4550 | 5168 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
c9ffd2ea | 5169 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3af9a47b NC |
5170 | { |
5171 | unsigned char buf[4]; | |
5172 | ||
c9ffd2ea | 5173 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
07d6d2b8 | 5174 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 5175 | return FALSE; |
3af9a47b NC |
5176 | |
5177 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
5178 | } | |
1e8a024a | 5179 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
07d6d2b8 AM |
5180 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
5181 | { | |
5182 | unsigned char buf[8]; | |
1e8a024a | 5183 | |
07d6d2b8 AM |
5184 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
5185 | || bfd_bread (buf, 8, abfd) != 8) | |
5186 | return FALSE; | |
1e8a024a | 5187 | |
07d6d2b8 AM |
5188 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5189 | } | |
1e8a024a | 5190 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) |
07d6d2b8 AM |
5191 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) |
5192 | { | |
5193 | unsigned char buf[8]; | |
1e8a024a | 5194 | |
07d6d2b8 AM |
5195 | if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
5196 | || bfd_bread (buf, 8, abfd) != 8) | |
5197 | return FALSE; | |
1e8a024a | 5198 | |
07d6d2b8 AM |
5199 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5200 | } | |
3af9a47b NC |
5201 | } |
5202 | ||
afbb9e17 | 5203 | return TRUE; |
3af9a47b NC |
5204 | } |
5205 | ||
42fa0891 TG |
5206 | bfd_boolean |
5207 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
07d6d2b8 AM |
5208 | enum bfd_architecture arch, |
5209 | unsigned long machine) | |
42fa0891 TG |
5210 | { |
5211 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
5212 | ||
5213 | /* If this isn't the right architecture for this backend, and this | |
5214 | isn't the generic backend, fail. */ | |
5215 | if (arch != bed->arch | |
5216 | && arch != bfd_arch_unknown | |
5217 | && bed->arch != bfd_arch_unknown) | |
5218 | return FALSE; | |
5219 | ||
5220 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
5221 | } | |
5222 | ||
afbb9e17 | 5223 | static bfd_boolean |
116c20d2 NC |
5224 | bfd_mach_o_scan (bfd *abfd, |
5225 | bfd_mach_o_header *header, | |
5226 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
5227 | { |
5228 | unsigned int i; | |
4bb7a87e JB |
5229 | enum bfd_architecture cpu_type; |
5230 | unsigned long cpu_subtype; | |
1e8a024a TG |
5231 | unsigned int hdrsize; |
5232 | ||
c2f09c75 | 5233 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 5234 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 5235 | |
3af9a47b | 5236 | mdata->header = *header; |
3af9a47b | 5237 | |
154a1ee5 | 5238 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
5239 | switch (header->filetype) |
5240 | { | |
5241 | case BFD_MACH_O_MH_OBJECT: | |
5242 | abfd->flags |= HAS_RELOC; | |
5243 | break; | |
5244 | case BFD_MACH_O_MH_EXECUTE: | |
5245 | abfd->flags |= EXEC_P; | |
5246 | break; | |
5247 | case BFD_MACH_O_MH_DYLIB: | |
5248 | case BFD_MACH_O_MH_BUNDLE: | |
5249 | abfd->flags |= DYNAMIC; | |
5250 | break; | |
5251 | } | |
5252 | ||
3af9a47b NC |
5253 | abfd->tdata.mach_o_data = mdata; |
5254 | ||
e84d6fca | 5255 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
4bb7a87e JB |
5256 | &cpu_type, &cpu_subtype); |
5257 | if (cpu_type == bfd_arch_unknown) | |
3af9a47b | 5258 | { |
4eca0228 | 5259 | _bfd_error_handler |
695344c0 | 5260 | /* xgettext:c-format */ |
07d6d2b8 AM |
5261 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), |
5262 | header->cputype, header->cpusubtype); | |
afbb9e17 | 5263 | return FALSE; |
3af9a47b NC |
5264 | } |
5265 | ||
4bb7a87e | 5266 | bfd_set_arch_mach (abfd, cpu_type, cpu_subtype); |
a95a4550 | 5267 | |
3af9a47b NC |
5268 | if (header->ncmds != 0) |
5269 | { | |
c9ffd2ea | 5270 | bfd_mach_o_load_command *cmd; |
1f4361a7 | 5271 | size_t amt; |
a4425a57 AM |
5272 | ufile_ptr filesize = bfd_get_file_size (abfd); |
5273 | ||
5274 | if (filesize == 0) | |
5275 | filesize = (ufile_ptr) -1; | |
c9ffd2ea TG |
5276 | |
5277 | mdata->first_command = NULL; | |
5278 | mdata->last_command = NULL; | |
64d29018 | 5279 | |
a4425a57 AM |
5280 | if (header->ncmds > (filesize - hdrsize) / BFD_MACH_O_LC_SIZE) |
5281 | { | |
5282 | bfd_set_error (bfd_error_file_truncated); | |
5283 | return FALSE; | |
5284 | } | |
1f4361a7 AM |
5285 | if (_bfd_mul_overflow (header->ncmds, |
5286 | sizeof (bfd_mach_o_load_command), &amt)) | |
5287 | { | |
5288 | bfd_set_error (bfd_error_file_too_big); | |
5289 | return FALSE; | |
5290 | } | |
5291 | cmd = bfd_alloc (abfd, amt); | |
c9ffd2ea | 5292 | if (cmd == NULL) |
afbb9e17 | 5293 | return FALSE; |
a95a4550 | 5294 | |
3af9a47b NC |
5295 | for (i = 0; i < header->ncmds; i++) |
5296 | { | |
c9ffd2ea TG |
5297 | bfd_mach_o_load_command *cur = &cmd[i]; |
5298 | ||
5299 | bfd_mach_o_append_command (abfd, cur); | |
3af9a47b NC |
5300 | |
5301 | if (i == 0) | |
1e8a024a | 5302 | cur->offset = hdrsize; |
3af9a47b NC |
5303 | else |
5304 | { | |
c9ffd2ea | 5305 | bfd_mach_o_load_command *prev = &cmd[i - 1]; |
3af9a47b NC |
5306 | cur->offset = prev->offset + prev->len; |
5307 | } | |
5308 | ||
a4425a57 | 5309 | if (!bfd_mach_o_read_command (abfd, cur, filesize)) |
afbb9e17 | 5310 | return FALSE; |
a95a4550 | 5311 | } |
3af9a47b NC |
5312 | } |
5313 | ||
c0fd7846 | 5314 | /* Sections should be flatten before scanning start address. */ |
96d3b80f AM |
5315 | if (!bfd_mach_o_flatten_sections (abfd)) |
5316 | return FALSE; | |
c0fd7846 | 5317 | if (!bfd_mach_o_scan_start_address (abfd)) |
afbb9e17 | 5318 | return FALSE; |
3af9a47b | 5319 | |
afbb9e17 | 5320 | return TRUE; |
3af9a47b NC |
5321 | } |
5322 | ||
b34976b6 | 5323 | bfd_boolean |
154a1ee5 | 5324 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
5325 | { |
5326 | bfd_mach_o_data_struct *mdata = NULL; | |
5327 | ||
b30a5d18 | 5328 | mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 5329 | if (mdata == NULL) |
b34976b6 | 5330 | return FALSE; |
3af9a47b NC |
5331 | abfd->tdata.mach_o_data = mdata; |
5332 | ||
5333 | mdata->header.magic = 0; | |
5334 | mdata->header.cputype = 0; | |
5335 | mdata->header.cpusubtype = 0; | |
5336 | mdata->header.filetype = 0; | |
5337 | mdata->header.ncmds = 0; | |
5338 | mdata->header.sizeofcmds = 0; | |
5339 | mdata->header.flags = 0; | |
5340 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
c9ffd2ea TG |
5341 | mdata->first_command = NULL; |
5342 | mdata->last_command = NULL; | |
3af9a47b NC |
5343 | mdata->nsects = 0; |
5344 | mdata->sections = NULL; | |
4434114c | 5345 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 5346 | |
b34976b6 | 5347 | return TRUE; |
3af9a47b NC |
5348 | } |
5349 | ||
42fa0891 TG |
5350 | static bfd_boolean |
5351 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
5352 | { | |
5353 | bfd_mach_o_data_struct *mdata; | |
5354 | ||
5355 | if (!bfd_mach_o_mkobject_init (abfd)) | |
5356 | return FALSE; | |
5357 | ||
5358 | mdata = bfd_mach_o_get_data (abfd); | |
5359 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
5360 | mdata->header.cputype = 0; | |
5361 | mdata->header.cpusubtype = 0; | |
5362 | mdata->header.byteorder = abfd->xvec->byteorder; | |
5363 | mdata->header.version = 1; | |
5364 | ||
5365 | return TRUE; | |
5366 | } | |
5367 | ||
cb001c0d | 5368 | bfd_cleanup |
154a1ee5 | 5369 | bfd_mach_o_header_p (bfd *abfd, |
47daa70f | 5370 | file_ptr hdr_off, |
4bb7a87e JB |
5371 | bfd_mach_o_filetype file_type, |
5372 | bfd_mach_o_cpu_type cpu_type) | |
3af9a47b NC |
5373 | { |
5374 | bfd_mach_o_header header; | |
c9ba0c87 | 5375 | bfd_mach_o_data_struct *mdata; |
3af9a47b | 5376 | |
47daa70f | 5377 | if (!bfd_mach_o_read_header (abfd, hdr_off, &header)) |
e84d6fca | 5378 | goto wrong; |
3af9a47b | 5379 | |
e84d6fca AM |
5380 | if (! (header.byteorder == BFD_ENDIAN_BIG |
5381 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 5382 | { |
d42c267e AM |
5383 | _bfd_error_handler (_("unknown header byte-order value %#x"), |
5384 | header.byteorder); | |
e84d6fca | 5385 | goto wrong; |
3af9a47b NC |
5386 | } |
5387 | ||
e84d6fca AM |
5388 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
5389 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
5390 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
5391 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
5392 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
5393 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
5394 | goto wrong; | |
3af9a47b | 5395 | |
154a1ee5 TG |
5396 | /* Check cputype and filetype. |
5397 | In case of wildcard, do not accept magics that are handled by existing | |
5398 | targets. */ | |
4bb7a87e | 5399 | if (cpu_type) |
154a1ee5 | 5400 | { |
4bb7a87e | 5401 | if (header.cputype != cpu_type) |
07d6d2b8 | 5402 | goto wrong; |
154a1ee5 | 5403 | } |
26954155 TG |
5404 | else |
5405 | { | |
5406 | #ifndef BFD64 | |
5407 | /* Do not recognize 64 architectures if not configured for 64bit targets. | |
5408 | This could happen only for generic targets. */ | |
5409 | if (mach_o_wide_p (&header)) | |
5410 | goto wrong; | |
5411 | #endif | |
5412 | } | |
b22161d6 | 5413 | |
4bb7a87e | 5414 | if (file_type) |
154a1ee5 | 5415 | { |
4bb7a87e | 5416 | if (header.filetype != file_type) |
07d6d2b8 | 5417 | goto wrong; |
154a1ee5 TG |
5418 | } |
5419 | else | |
5420 | { | |
5421 | switch (header.filetype) | |
07d6d2b8 AM |
5422 | { |
5423 | case BFD_MACH_O_MH_CORE: | |
5424 | /* Handled by core_p */ | |
5425 | goto wrong; | |
5426 | default: | |
5427 | break; | |
5428 | } | |
154a1ee5 TG |
5429 | } |
5430 | ||
c9ba0c87 AM |
5431 | mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata)); |
5432 | if (mdata == NULL) | |
e84d6fca | 5433 | goto fail; |
47daa70f | 5434 | mdata->hdr_offset = hdr_off; |
3af9a47b | 5435 | |
c9ba0c87 | 5436 | if (!bfd_mach_o_scan (abfd, &header, mdata)) |
e84d6fca | 5437 | goto wrong; |
a95a4550 | 5438 | |
cb001c0d | 5439 | return _bfd_no_cleanup; |
e84d6fca AM |
5440 | |
5441 | wrong: | |
5442 | bfd_set_error (bfd_error_wrong_format); | |
5443 | ||
5444 | fail: | |
e84d6fca | 5445 | return NULL; |
3af9a47b NC |
5446 | } |
5447 | ||
cb001c0d | 5448 | static bfd_cleanup |
154a1ee5 | 5449 | bfd_mach_o_gen_object_p (bfd *abfd) |
3af9a47b | 5450 | { |
47daa70f | 5451 | return bfd_mach_o_header_p (abfd, 0, 0, 0); |
154a1ee5 | 5452 | } |
e84d6fca | 5453 | |
cb001c0d | 5454 | static bfd_cleanup |
154a1ee5 TG |
5455 | bfd_mach_o_gen_core_p (bfd *abfd) |
5456 | { | |
47daa70f | 5457 | return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0); |
3af9a47b NC |
5458 | } |
5459 | ||
3cc27770 TG |
5460 | /* Return the base address of ABFD, ie the address at which the image is |
5461 | mapped. The possible initial pagezero is ignored. */ | |
5462 | ||
5463 | bfd_vma | |
5464 | bfd_mach_o_get_base_address (bfd *abfd) | |
5465 | { | |
5466 | bfd_mach_o_data_struct *mdata; | |
c9ffd2ea | 5467 | bfd_mach_o_load_command *cmd; |
3cc27770 TG |
5468 | |
5469 | /* Check for Mach-O. */ | |
5470 | if (!bfd_mach_o_valid (abfd)) | |
5471 | return 0; | |
5472 | mdata = bfd_mach_o_get_data (abfd); | |
5473 | ||
c9ffd2ea | 5474 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3cc27770 | 5475 | { |
3cc27770 TG |
5476 | if ((cmd->type == BFD_MACH_O_LC_SEGMENT |
5477 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64)) | |
5478 | { | |
5479 | struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment; | |
5480 | ||
5481 | if (segcmd->initprot != 0) | |
5482 | return segcmd->vmaddr; | |
5483 | } | |
5484 | } | |
5485 | return 0; | |
5486 | } | |
5487 | ||
3af9a47b NC |
5488 | typedef struct mach_o_fat_archentry |
5489 | { | |
5490 | unsigned long cputype; | |
5491 | unsigned long cpusubtype; | |
5492 | unsigned long offset; | |
5493 | unsigned long size; | |
5494 | unsigned long align; | |
3af9a47b NC |
5495 | } mach_o_fat_archentry; |
5496 | ||
5497 | typedef struct mach_o_fat_data_struct | |
5498 | { | |
5499 | unsigned long magic; | |
5500 | unsigned long nfat_arch; | |
5501 | mach_o_fat_archentry *archentries; | |
5502 | } mach_o_fat_data_struct; | |
5503 | ||
cb001c0d | 5504 | bfd_cleanup |
47daa70f | 5505 | bfd_mach_o_fat_archive_p (bfd *abfd) |
3af9a47b | 5506 | { |
e84d6fca | 5507 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 5508 | struct mach_o_fat_header_external hdr; |
3af9a47b | 5509 | unsigned long i; |
1f4361a7 | 5510 | size_t amt; |
3af9a47b | 5511 | |
c2f09c75 | 5512 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 5513 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 5514 | goto error; |
3af9a47b | 5515 | |
116c20d2 | 5516 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 5517 | if (adata == NULL) |
e84d6fca | 5518 | goto error; |
a95a4550 | 5519 | |
46d1c23b TG |
5520 | adata->magic = bfd_getb32 (hdr.magic); |
5521 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 5522 | if (adata->magic != 0xcafebabe) |
e84d6fca | 5523 | goto error; |
27cc28f9 AS |
5524 | /* Avoid matching Java bytecode files, which have the same magic number. |
5525 | In the Java bytecode file format this field contains the JVM version, | |
5526 | which starts at 43.0. */ | |
5527 | if (adata->nfat_arch > 30) | |
5528 | goto error; | |
3af9a47b | 5529 | |
1f4361a7 AM |
5530 | if (_bfd_mul_overflow (adata->nfat_arch, |
5531 | sizeof (mach_o_fat_archentry), &amt)) | |
5532 | { | |
5533 | bfd_set_error (bfd_error_file_too_big); | |
5534 | goto error; | |
5535 | } | |
5536 | adata->archentries = bfd_alloc (abfd, amt); | |
3af9a47b | 5537 | if (adata->archentries == NULL) |
e84d6fca | 5538 | goto error; |
3af9a47b NC |
5539 | |
5540 | for (i = 0; i < adata->nfat_arch; i++) | |
5541 | { | |
46d1c23b TG |
5542 | struct mach_o_fat_arch_external arch; |
5543 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 5544 | goto error; |
46d1c23b TG |
5545 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
5546 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
5547 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
5548 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
5549 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
5550 | } |
5551 | ||
5552 | abfd->tdata.mach_o_fat_data = adata; | |
64d29018 | 5553 | |
cb001c0d | 5554 | return _bfd_no_cleanup; |
e84d6fca AM |
5555 | |
5556 | error: | |
5557 | if (adata != NULL) | |
5558 | bfd_release (abfd, adata); | |
5559 | bfd_set_error (bfd_error_wrong_format); | |
5560 | return NULL; | |
3af9a47b NC |
5561 | } |
5562 | ||
a4e241ca TG |
5563 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
5564 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
5565 | Set arelt_data and origin fields too. */ | |
5566 | ||
90d92a63 | 5567 | static bfd_boolean |
a4e241ca | 5568 | bfd_mach_o_fat_member_init (bfd *abfd, |
07d6d2b8 AM |
5569 | enum bfd_architecture arch_type, |
5570 | unsigned long arch_subtype, | |
5571 | mach_o_fat_archentry *entry) | |
a4e241ca TG |
5572 | { |
5573 | struct areltdata *areltdata; | |
5574 | /* Create the member filename. Use ARCH_NAME. */ | |
5575 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
7b958a48 | 5576 | const char *filename; |
a4e241ca TG |
5577 | |
5578 | if (ap) | |
5579 | { | |
5580 | /* Use the architecture name if known. */ | |
7b958a48 | 5581 | filename = bfd_set_filename (abfd, ap->printable_name); |
a4e241ca TG |
5582 | } |
5583 | else | |
5584 | { | |
5585 | /* Forge a uniq id. */ | |
7b958a48 AM |
5586 | char buf[2 + 8 + 1 + 2 + 8 + 1]; |
5587 | snprintf (buf, sizeof (buf), "0x%lx-0x%lx", | |
07d6d2b8 | 5588 | entry->cputype, entry->cpusubtype); |
7b958a48 | 5589 | filename = bfd_set_filename (abfd, buf); |
a4e241ca | 5590 | } |
7b958a48 AM |
5591 | if (!filename) |
5592 | return FALSE; | |
a4e241ca | 5593 | |
06e7acd7 | 5594 | areltdata = bfd_zmalloc (sizeof (struct areltdata)); |
90d92a63 AM |
5595 | if (areltdata == NULL) |
5596 | return FALSE; | |
a4e241ca TG |
5597 | areltdata->parsed_size = entry->size; |
5598 | abfd->arelt_data = areltdata; | |
5599 | abfd->iostream = NULL; | |
5600 | abfd->origin = entry->offset; | |
90d92a63 | 5601 | return TRUE; |
a4e241ca TG |
5602 | } |
5603 | ||
3af9a47b | 5604 | bfd * |
47daa70f | 5605 | bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 5606 | { |
e84d6fca | 5607 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
5608 | mach_o_fat_archentry *entry = NULL; |
5609 | unsigned long i; | |
15e1c58a | 5610 | bfd *nbfd; |
15e1c58a TG |
5611 | enum bfd_architecture arch_type; |
5612 | unsigned long arch_subtype; | |
3af9a47b | 5613 | |
e84d6fca | 5614 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
5615 | BFD_ASSERT (adata != NULL); |
5616 | ||
5617 | /* Find index of previous entry. */ | |
5618 | if (prev == NULL) | |
a4e241ca TG |
5619 | { |
5620 | /* Start at first one. */ | |
5621 | i = 0; | |
5622 | } | |
3af9a47b NC |
5623 | else |
5624 | { | |
a4e241ca | 5625 | /* Find index of PREV. */ |
3af9a47b NC |
5626 | for (i = 0; i < adata->nfat_arch; i++) |
5627 | { | |
15e1c58a | 5628 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
5629 | break; |
5630 | } | |
5631 | ||
5632 | if (i == adata->nfat_arch) | |
5633 | { | |
5634 | /* Not found. */ | |
5635 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 5636 | return NULL; |
3af9a47b | 5637 | } |
a4e241ca TG |
5638 | |
5639 | /* Get next entry. */ | |
5640 | i++; | |
5641 | } | |
a95a4550 | 5642 | |
3af9a47b NC |
5643 | if (i >= adata->nfat_arch) |
5644 | { | |
5645 | bfd_set_error (bfd_error_no_more_archived_files); | |
5646 | return NULL; | |
5647 | } | |
5648 | ||
5649 | entry = &adata->archentries[i]; | |
15e1c58a TG |
5650 | nbfd = _bfd_new_bfd_contained_in (archive); |
5651 | if (nbfd == NULL) | |
5652 | return NULL; | |
5653 | ||
15e1c58a TG |
5654 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
5655 | &arch_type, &arch_subtype); | |
846b9259 | 5656 | |
90d92a63 AM |
5657 | if (!bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry)) |
5658 | { | |
5659 | bfd_close (nbfd); | |
5660 | return NULL; | |
5661 | } | |
a4e241ca | 5662 | |
846b9259 | 5663 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 5664 | |
15e1c58a | 5665 | return nbfd; |
3af9a47b NC |
5666 | } |
5667 | ||
15bbba8d TG |
5668 | /* Analogous to stat call. */ |
5669 | ||
5670 | static int | |
5671 | bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf) | |
5672 | { | |
5673 | if (abfd->arelt_data == NULL) | |
5674 | { | |
5675 | bfd_set_error (bfd_error_invalid_operation); | |
5676 | return -1; | |
5677 | } | |
5678 | ||
5679 | buf->st_mtime = 0; | |
5680 | buf->st_uid = 0; | |
5681 | buf->st_gid = 0; | |
5682 | buf->st_mode = 0644; | |
5683 | buf->st_size = arelt_size (abfd); | |
5684 | ||
5685 | return 0; | |
5686 | } | |
5687 | ||
846b9259 TG |
5688 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
5689 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
5690 | and ARCH, returns it. | |
5691 | In other case, returns NULL. | |
5692 | This function allows transparent uses of fat images. */ | |
a4e241ca | 5693 | |
846b9259 TG |
5694 | bfd * |
5695 | bfd_mach_o_fat_extract (bfd *abfd, | |
5696 | bfd_format format, | |
5697 | const bfd_arch_info_type *arch) | |
5698 | { | |
5699 | bfd *res; | |
5700 | mach_o_fat_data_struct *adata; | |
5701 | unsigned int i; | |
5702 | ||
5703 | if (bfd_check_format (abfd, format)) | |
5704 | { | |
5705 | if (bfd_get_arch_info (abfd) == arch) | |
5706 | return abfd; | |
5707 | return NULL; | |
5708 | } | |
5709 | if (!bfd_check_format (abfd, bfd_archive) | |
5710 | || abfd->xvec != &mach_o_fat_vec) | |
5711 | return NULL; | |
c2f09c75 | 5712 | |
846b9259 TG |
5713 | /* This is a Mach-O fat image. */ |
5714 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
5715 | BFD_ASSERT (adata != NULL); | |
5716 | ||
5717 | for (i = 0; i < adata->nfat_arch; i++) | |
5718 | { | |
5719 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
5720 | enum bfd_architecture cpu_type; | |
5721 | unsigned long cpu_subtype; | |
5722 | ||
5723 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
5724 | &cpu_type, &cpu_subtype); | |
5725 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
5726 | continue; | |
5727 | ||
5728 | /* The architecture is found. */ | |
5729 | res = _bfd_new_bfd_contained_in (abfd); | |
5730 | if (res == NULL) | |
5731 | return NULL; | |
5732 | ||
90d92a63 AM |
5733 | if (bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e) |
5734 | && bfd_check_format (res, format)) | |
846b9259 TG |
5735 | { |
5736 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
5737 | return res; | |
5738 | } | |
5739 | bfd_close (res); | |
5740 | return NULL; | |
5741 | } | |
5742 | ||
5743 | return NULL; | |
5744 | } | |
5745 | ||
eac61af6 TT |
5746 | static bfd_boolean |
5747 | bfd_mach_o_fat_close_and_cleanup (bfd *abfd) | |
5748 | { | |
5749 | _bfd_unlink_from_archive_parent (abfd); | |
5750 | return TRUE; | |
5751 | } | |
5752 | ||
3af9a47b | 5753 | int |
116c20d2 NC |
5754 | bfd_mach_o_lookup_command (bfd *abfd, |
5755 | bfd_mach_o_load_command_type type, | |
5756 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 5757 | { |
c9ffd2ea TG |
5758 | struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
5759 | struct bfd_mach_o_load_command *cmd; | |
5760 | unsigned int num; | |
3af9a47b | 5761 | |
c9ffd2ea | 5762 | BFD_ASSERT (mdata != NULL); |
3af9a47b NC |
5763 | BFD_ASSERT (mcommand != NULL); |
5764 | ||
5765 | num = 0; | |
c9ffd2ea | 5766 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5767 | { |
3af9a47b NC |
5768 | if (cmd->type != type) |
5769 | continue; | |
5770 | ||
5771 | if (num == 0) | |
c9ffd2ea | 5772 | *mcommand = cmd; |
3af9a47b NC |
5773 | num++; |
5774 | } | |
5775 | ||
3af9a47b NC |
5776 | return num; |
5777 | } | |
5778 | ||
5779 | unsigned long | |
116c20d2 | 5780 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
5781 | { |
5782 | switch (type) | |
5783 | { | |
5784 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
5785 | return 0x04000000; | |
3af9a47b NC |
5786 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
5787 | return 0xc0000000; | |
5788 | case BFD_MACH_O_CPU_TYPE_I386: | |
5789 | return 0xc0000000; | |
5790 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
5791 | return 0xf0000000; | |
3af9a47b | 5792 | case BFD_MACH_O_CPU_TYPE_HPPA: |
e84d6fca | 5793 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
5794 | default: |
5795 | return 0; | |
5796 | } | |
5797 | } | |
5798 | ||
ab76eeaf IS |
5799 | /* The following two tables should be kept, as far as possible, in order of |
5800 | most frequently used entries to optimize their use from gas. */ | |
5801 | ||
c5012cd8 | 5802 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
5803 | { |
5804 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 5805 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
5806 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
5807 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
5808 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
5809 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 5810 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 5811 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
5812 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
5813 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
5814 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
5815 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 5816 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
5817 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
5818 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 5819 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
5820 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
5821 | { NULL, 0} | |
5822 | }; | |
5823 | ||
c5012cd8 | 5824 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 5825 | { |
ab76eeaf IS |
5826 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
5827 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
5828 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
5829 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 5830 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
5831 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
5832 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
5833 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
5834 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 5835 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 5836 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
5837 | { NULL, 0} |
5838 | }; | |
5839 | ||
a4551119 | 5840 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
5841 | |
5842 | unsigned int | |
ab76eeaf | 5843 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 5844 | { |
afbb9e17 | 5845 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 5846 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
5847 | |
5848 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
5849 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
5850 | { |
5851 | /* We found it... does the target support it? */ | |
5852 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
5853 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
5854 | return x->val; /* OK. */ | |
5855 | else | |
5856 | break; /* Not supported. */ | |
5857 | } | |
a4551119 TG |
5858 | /* Maximum section ID = 0xff. */ |
5859 | return 256; | |
53d58d96 TG |
5860 | } |
5861 | ||
5862 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
5863 | ||
5864 | unsigned int | |
5865 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
5866 | { | |
afbb9e17 | 5867 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
5868 | |
5869 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
5870 | if (strcmp (x->name, name) == 0) | |
5871 | return x->val; | |
5872 | return (unsigned int)-1; | |
5873 | } | |
5874 | ||
3af9a47b | 5875 | int |
116c20d2 NC |
5876 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
5877 | unsigned char **rbuf, | |
5878 | unsigned int *rlen) | |
3af9a47b | 5879 | { |
046b007d | 5880 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 5881 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
c9ffd2ea | 5882 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5883 | |
c9ffd2ea | 5884 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5885 | { |
c9ffd2ea | 5886 | bfd_mach_o_segment_command *seg; |
3af9a47b | 5887 | |
c9ffd2ea | 5888 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) |
3af9a47b NC |
5889 | continue; |
5890 | ||
c9ffd2ea | 5891 | seg = &cmd->command.segment; |
3af9a47b NC |
5892 | |
5893 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
5894 | { | |
5895 | unsigned long start = seg->fileoff; | |
5896 | unsigned long end = seg->fileoff + seg->filesize; | |
5897 | unsigned char *buf = bfd_malloc (1024); | |
5898 | unsigned long size = 1024; | |
5899 | ||
7a0fb7be NC |
5900 | if (buf == NULL) |
5901 | return -1; | |
3af9a47b NC |
5902 | for (;;) |
5903 | { | |
5904 | bfd_size_type nread = 0; | |
5905 | unsigned long offset; | |
5906 | int found_nonnull = 0; | |
5907 | ||
5908 | if (size > (end - start)) | |
5909 | size = (end - start); | |
5910 | ||
515ef31d NC |
5911 | buf = bfd_realloc_or_free (buf, size); |
5912 | if (buf == NULL) | |
5913 | return -1; | |
c2f09c75 TG |
5914 | |
5915 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
07d6d2b8 AM |
5916 | { |
5917 | free (buf); | |
5918 | return -1; | |
5919 | } | |
c2f09c75 | 5920 | |
3af9a47b | 5921 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 5922 | |
3af9a47b | 5923 | if (nread != size) |
515ef31d NC |
5924 | { |
5925 | free (buf); | |
5926 | return -1; | |
5927 | } | |
a95a4550 | 5928 | |
3af9a47b NC |
5929 | for (offset = 4; offset <= size; offset += 4) |
5930 | { | |
e84d6fca | 5931 | unsigned long val; |
3af9a47b | 5932 | |
e84d6fca | 5933 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
5934 | if (! found_nonnull) |
5935 | { | |
5936 | if (val != 0) | |
5937 | found_nonnull = 1; | |
5938 | } | |
5939 | else if (val == 0x0) | |
5940 | { | |
e84d6fca AM |
5941 | unsigned long bottom; |
5942 | unsigned long top; | |
3af9a47b | 5943 | |
e84d6fca AM |
5944 | bottom = seg->fileoff + seg->filesize - offset; |
5945 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b | 5946 | *rbuf = bfd_malloc (top - bottom); |
7a0fb7be NC |
5947 | if (*rbuf == NULL) |
5948 | return -1; | |
3af9a47b NC |
5949 | *rlen = top - bottom; |
5950 | ||
5951 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 5952 | free (buf); |
3af9a47b NC |
5953 | return 0; |
5954 | } | |
5955 | } | |
5956 | ||
5957 | if (size == (end - start)) | |
5958 | break; | |
5959 | ||
5960 | size *= 2; | |
5961 | } | |
515ef31d NC |
5962 | |
5963 | free (buf); | |
3af9a47b NC |
5964 | } |
5965 | } | |
5966 | ||
5967 | return -1; | |
5968 | } | |
5969 | ||
5970 | char * | |
116c20d2 | 5971 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
5972 | { |
5973 | unsigned char *buf = NULL; | |
5974 | unsigned int len = 0; | |
452216ab | 5975 | int ret; |
3af9a47b NC |
5976 | |
5977 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
5978 | if (ret < 0) | |
5979 | return NULL; | |
5980 | ||
f075ee0c | 5981 | return (char *) buf; |
3af9a47b NC |
5982 | } |
5983 | ||
5984 | int | |
116c20d2 | 5985 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
5986 | { |
5987 | return 0; | |
5988 | } | |
5989 | ||
2ca7691a TG |
5990 | static bfd_mach_o_uuid_command * |
5991 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
5992 | { | |
09fe2662 | 5993 | bfd_mach_o_load_command *uuid_cmd = NULL; |
2ca7691a | 5994 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); |
09fe2662 | 5995 | if (ncmd != 1 || uuid_cmd == NULL) |
2ca7691a TG |
5996 | return FALSE; |
5997 | return &uuid_cmd->command.uuid; | |
5998 | } | |
5999 | ||
6000 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
6001 | ||
6002 | static bfd_boolean | |
6003 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) | |
6004 | { | |
6005 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
6006 | ||
6007 | BFD_ASSERT (abfd); | |
6008 | BFD_ASSERT (uuid_cmd); | |
6009 | ||
6010 | if (!bfd_check_format (abfd, bfd_object)) | |
6011 | return FALSE; | |
6012 | ||
6013 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
6014 | || bfd_mach_o_get_data (abfd) == NULL | |
6015 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
6016 | return FALSE; | |
6017 | ||
6018 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
6019 | if (dsym_uuid_cmd == NULL) | |
6020 | return FALSE; | |
6021 | ||
6022 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
07d6d2b8 | 6023 | sizeof (uuid_cmd->uuid)) != 0) |
2ca7691a TG |
6024 | return FALSE; |
6025 | ||
6026 | return TRUE; | |
6027 | } | |
6028 | ||
6029 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
6030 | The caller is responsible for closing the returned BFD object and | |
6031 | its my_archive if the returned BFD is in a fat dSYM. */ | |
6032 | ||
6033 | static bfd * | |
6034 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
07d6d2b8 AM |
6035 | const bfd_mach_o_uuid_command *uuid_cmd, |
6036 | const bfd_arch_info_type *arch) | |
2ca7691a TG |
6037 | { |
6038 | bfd *base_dsym_bfd, *dsym_bfd; | |
6039 | ||
6040 | BFD_ASSERT (uuid_cmd); | |
6041 | ||
6042 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
6043 | if (base_dsym_bfd == NULL) | |
6044 | return NULL; | |
6045 | ||
6046 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
6047 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
6048 | return dsym_bfd; | |
6049 | ||
6050 | bfd_close (dsym_bfd); | |
6051 | if (base_dsym_bfd != dsym_bfd) | |
6052 | bfd_close (base_dsym_bfd); | |
6053 | ||
6054 | return NULL; | |
6055 | } | |
6056 | ||
6057 | /* Return a BFD created from a dSYM file for ABFD. | |
6058 | The caller is responsible for closing the returned BFD object, its | |
6059 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
6060 | ||
6061 | static bfd * | |
6062 | bfd_mach_o_follow_dsym (bfd *abfd) | |
6063 | { | |
6064 | char *dsym_filename; | |
6065 | bfd_mach_o_uuid_command *uuid_cmd; | |
6066 | bfd *dsym_bfd, *base_bfd = abfd; | |
6067 | const char *base_basename; | |
6068 | ||
6069 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
6070 | return NULL; | |
6071 | ||
b0cffb47 | 6072 | if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive)) |
2ca7691a TG |
6073 | base_bfd = abfd->my_archive; |
6074 | /* BFD may have been opened from a stream. */ | |
765cf5f6 | 6075 | if (bfd_get_filename (base_bfd) == NULL) |
2ca7691a TG |
6076 | { |
6077 | bfd_set_error (bfd_error_invalid_operation); | |
6078 | return NULL; | |
6079 | } | |
765cf5f6 | 6080 | base_basename = lbasename (bfd_get_filename (base_bfd)); |
2ca7691a TG |
6081 | |
6082 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
6083 | if (uuid_cmd == NULL) | |
6084 | return NULL; | |
6085 | ||
6086 | /* TODO: We assume the DWARF file has the same as the binary's. | |
6087 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
6088 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
6089 | */ | |
765cf5f6 | 6090 | dsym_filename = (char *)bfd_malloc (strlen (bfd_get_filename (base_bfd)) |
07d6d2b8 AM |
6091 | + strlen (dsym_subdir) + 1 |
6092 | + strlen (base_basename) + 1); | |
7a0fb7be NC |
6093 | if (dsym_filename == NULL) |
6094 | return NULL; | |
6095 | ||
2ca7691a | 6096 | sprintf (dsym_filename, "%s%s/%s", |
765cf5f6 | 6097 | bfd_get_filename (base_bfd), dsym_subdir, base_basename); |
2ca7691a TG |
6098 | |
6099 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
07d6d2b8 | 6100 | bfd_get_arch_info (abfd)); |
2ca7691a TG |
6101 | if (dsym_bfd == NULL) |
6102 | free (dsym_filename); | |
6103 | ||
6104 | return dsym_bfd; | |
6105 | } | |
6106 | ||
d9071b0c TG |
6107 | bfd_boolean |
6108 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
d9071b0c | 6109 | asymbol **symbols, |
fb167eb2 | 6110 | asection *section, |
d9071b0c TG |
6111 | bfd_vma offset, |
6112 | const char **filename_ptr, | |
6113 | const char **functionname_ptr, | |
fb167eb2 AM |
6114 | unsigned int *line_ptr, |
6115 | unsigned int *discriminator_ptr) | |
d9071b0c TG |
6116 | { |
6117 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 6118 | if (mdata == NULL) |
d9071b0c | 6119 | return FALSE; |
2ca7691a TG |
6120 | switch (mdata->header.filetype) |
6121 | { | |
6122 | case BFD_MACH_O_MH_OBJECT: | |
6123 | break; | |
6124 | case BFD_MACH_O_MH_EXECUTE: | |
6125 | case BFD_MACH_O_MH_DYLIB: | |
6126 | case BFD_MACH_O_MH_BUNDLE: | |
6127 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
6128 | if (mdata->dwarf2_find_line_info == NULL) | |
07d6d2b8 AM |
6129 | { |
6130 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
6131 | /* When we couldn't find dSYM for this binary, we look for | |
6132 | the debug information in the binary itself. In this way, | |
6133 | we won't try finding separated dSYM again because | |
6134 | mdata->dwarf2_find_line_info will be filled. */ | |
6135 | if (! mdata->dsym_bfd) | |
6136 | break; | |
6137 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
6138 | dwarf_debug_sections, symbols, | |
6139 | &mdata->dwarf2_find_line_info, | |
93ee1e36 | 6140 | FALSE)) |
07d6d2b8 AM |
6141 | return FALSE; |
6142 | } | |
2ca7691a TG |
6143 | break; |
6144 | default: | |
6145 | return FALSE; | |
6146 | } | |
fb167eb2 AM |
6147 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
6148 | filename_ptr, functionname_ptr, | |
6149 | line_ptr, discriminator_ptr, | |
9defd221 | 6150 | dwarf_debug_sections, |
fb167eb2 | 6151 | &mdata->dwarf2_find_line_info); |
d9071b0c TG |
6152 | } |
6153 | ||
6154 | bfd_boolean | |
6155 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
6156 | { | |
6157 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
6158 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
6159 | { |
6160 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
6161 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a | 6162 | if (mdata->dsym_bfd != NULL) |
07d6d2b8 AM |
6163 | { |
6164 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
cf466c2a NC |
6165 | #if 0 |
6166 | /* FIXME: PR 19435: This calculation to find the memory allocated by | |
6167 | bfd_mach_o_follow_dsym for the filename does not always end up | |
6168 | selecting the correct pointer. Unfortunately this problem is | |
6169 | very hard to reproduce on a non Mach-O native system, so until it | |
6170 | can be traced and fixed on such a system, this code will remain | |
6171 | commented out. This does mean that there will be a memory leak, | |
6172 | but it is small, and happens when we are closing down, so it | |
c244074c | 6173 | should not matter too much. */ |
07d6d2b8 | 6174 | char *dsym_filename = (char *)(fat_bfd |
765cf5f6 AM |
6175 | ? bfd_get_filename (fat_bfd) |
6176 | : bfd_get_filename (mdata->dsym_bfd)); | |
cf466c2a | 6177 | #endif |
07d6d2b8 AM |
6178 | bfd_close (mdata->dsym_bfd); |
6179 | mdata->dsym_bfd = NULL; | |
6180 | if (fat_bfd) | |
6181 | bfd_close (fat_bfd); | |
cf466c2a | 6182 | #if 0 |
07d6d2b8 | 6183 | free (dsym_filename); |
cf466c2a | 6184 | #endif |
07d6d2b8 | 6185 | } |
4434114c | 6186 | } |
dff55db0 | 6187 | |
d9071b0c TG |
6188 | return _bfd_generic_close_and_cleanup (abfd); |
6189 | } | |
6190 | ||
c6643fcc NC |
6191 | bfd_boolean |
6192 | bfd_mach_o_free_cached_info (bfd *abfd) | |
dff55db0 TG |
6193 | { |
6194 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
6195 | asection *asect; | |
6196 | free (mdata->dyn_reloc_cache); | |
6197 | mdata->dyn_reloc_cache = NULL; | |
6198 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
6199 | { | |
6200 | free (asect->relocation); | |
6201 | asect->relocation = NULL; | |
6202 | } | |
6203 | ||
6204 | return TRUE; | |
6205 | } | |
6206 | ||
68ffbac6 | 6207 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
92bc0e80 TG |
6208 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
6209 | ||
bcb51645 | 6210 | #define bfd_mach_o_canonicalize_one_reloc NULL |
92bc0e80 | 6211 | #define bfd_mach_o_swap_reloc_out NULL |
b32e07d7 | 6212 | #define bfd_mach_o_print_thread NULL |
a4551119 | 6213 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 6214 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 6215 | |
07d6d2b8 AM |
6216 | #define TARGET_NAME mach_o_be_vec |
6217 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 6218 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6219 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6220 | #define TARGET_BIG_ENDIAN 1 |
6221 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 6222 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
6223 | #include "mach-o-target.c" |
6224 | ||
6225 | #undef TARGET_NAME | |
6226 | #undef TARGET_STRING | |
42fa0891 | 6227 | #undef TARGET_ARCHITECTURE |
4384b284 | 6228 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6229 | #undef TARGET_BIG_ENDIAN |
6230 | #undef TARGET_ARCHIVE | |
b93a1992 | 6231 | #undef TARGET_PRIORITY |
3af9a47b | 6232 | |
07d6d2b8 AM |
6233 | #define TARGET_NAME mach_o_le_vec |
6234 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 6235 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6236 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6237 | #define TARGET_BIG_ENDIAN 0 |
6238 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 6239 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
6240 | |
6241 | #include "mach-o-target.c" | |
6242 | ||
6243 | #undef TARGET_NAME | |
6244 | #undef TARGET_STRING | |
42fa0891 | 6245 | #undef TARGET_ARCHITECTURE |
4384b284 | 6246 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6247 | #undef TARGET_BIG_ENDIAN |
6248 | #undef TARGET_ARCHIVE | |
b93a1992 | 6249 | #undef TARGET_PRIORITY |
3af9a47b | 6250 | |
8f95b6e4 | 6251 | /* Not yet handled: creating an archive. */ |
07d6d2b8 | 6252 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
8f95b6e4 | 6253 | |
eac61af6 | 6254 | #define bfd_mach_o_close_and_cleanup bfd_mach_o_fat_close_and_cleanup |
47daa70f | 6255 | |
8f95b6e4 | 6256 | /* Not used. */ |
07d6d2b8 | 6257 | #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt |
47daa70f TG |
6258 | #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file |
6259 | #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p | |
8f95b6e4 | 6260 | |
07d6d2b8 AM |
6261 | #define TARGET_NAME mach_o_fat_vec |
6262 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 6263 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6264 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6265 | #define TARGET_BIG_ENDIAN 1 |
6266 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 6267 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
6268 | |
6269 | #include "mach-o-target.c" | |
6270 | ||
6271 | #undef TARGET_NAME | |
6272 | #undef TARGET_STRING | |
42fa0891 | 6273 | #undef TARGET_ARCHITECTURE |
4384b284 | 6274 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6275 | #undef TARGET_BIG_ENDIAN |
6276 | #undef TARGET_ARCHIVE | |
b93a1992 | 6277 | #undef TARGET_PRIORITY |