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3af9a47b | 1 | /* Mach-O support for BFD. |
250d07de | 2 | Copyright (C) 1999-2021 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 | |
0a1b45a2 | 41 | static bool |
c9ffd2ea TG |
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 | ||
0a1b45a2 | 55 | bool |
116c20d2 | 56 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
57 | { |
58 | if (abfd == NULL || abfd->xvec == NULL) | |
0a1b45a2 | 59 | return false; |
3af9a47b | 60 | |
154a1ee5 | 61 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
0a1b45a2 | 62 | return false; |
3af9a47b | 63 | |
046b007d | 64 | if (bfd_mach_o_get_data (abfd) == NULL) |
0a1b45a2 AM |
65 | return false; |
66 | return true; | |
154a1ee5 TG |
67 | } |
68 | ||
0a1b45a2 | 69 | static INLINE bool |
c2f09c75 TG |
70 | mach_o_wide_p (bfd_mach_o_header *header) |
71 | { | |
72 | switch (header->version) | |
73 | { | |
74 | case 1: | |
0a1b45a2 | 75 | return false; |
c2f09c75 | 76 | case 2: |
0a1b45a2 | 77 | return true; |
c2f09c75 TG |
78 | default: |
79 | BFD_FAIL (); | |
0a1b45a2 | 80 | return false; |
c2f09c75 TG |
81 | } |
82 | } | |
83 | ||
0a1b45a2 | 84 | static INLINE bool |
c2f09c75 TG |
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 | ||
0a1b45a2 | 554 | bool |
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 | |
0a1b45a2 | 569 | return true; |
3af9a47b NC |
570 | } |
571 | ||
572 | /* Copy any private info we understand from the input section | |
573 | to the output section. */ | |
574 | ||
0a1b45a2 | 575 | bool |
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) | |
0a1b45a2 | 584 | return true; |
c9ffd2ea TG |
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 | |
0a1b45a2 | 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 * | |
7fbd5f4e | 621 | cpusubtype (unsigned long cpu_type, unsigned long cpu_subtype, char *buffer) |
c6643fcc | 622 | { |
c6643fcc | 623 | buffer[0] = 0; |
4bb7a87e | 624 | switch (cpu_subtype & BFD_MACH_O_CPU_SUBTYPE_MASK) |
c6643fcc NC |
625 | { |
626 | case 0: | |
627 | break; | |
628 | case BFD_MACH_O_CPU_SUBTYPE_LIB64: | |
629 | sprintf (buffer, " (LIB64)"); break; | |
630 | default: | |
631 | sprintf (buffer, _("<unknown mask flags>")); break; | |
632 | } | |
633 | ||
4bb7a87e | 634 | cpu_subtype &= ~ BFD_MACH_O_CPU_SUBTYPE_MASK; |
c6643fcc | 635 | |
4bb7a87e | 636 | switch (cpu_type) |
c6643fcc NC |
637 | { |
638 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
639 | case BFD_MACH_O_CPU_TYPE_I386: | |
4bb7a87e | 640 | switch (cpu_subtype) |
c6643fcc NC |
641 | { |
642 | case BFD_MACH_O_CPU_SUBTYPE_X86_ALL: | |
643 | return strcat (buffer, " (X86_ALL)"); | |
644 | default: | |
645 | break; | |
646 | } | |
647 | break; | |
4b24dd1a | 648 | |
c6643fcc | 649 | case BFD_MACH_O_CPU_TYPE_ARM: |
4bb7a87e | 650 | switch (cpu_subtype) |
c6643fcc NC |
651 | { |
652 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
653 | return strcat (buffer, " (ARM_ALL)"); | |
654 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
655 | return strcat (buffer, " (ARM_V4T)"); | |
656 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
657 | return strcat (buffer, " (ARM_V6)"); | |
658 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
659 | return strcat (buffer, " (ARM_V5TEJ)"); | |
660 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
661 | return strcat (buffer, " (ARM_XSCALE)"); | |
662 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
663 | return strcat (buffer, " (ARM_V7)"); | |
664 | default: | |
665 | break; | |
666 | } | |
667 | break; | |
4b24dd1a | 668 | |
c6643fcc | 669 | case BFD_MACH_O_CPU_TYPE_ARM64: |
4bb7a87e | 670 | switch (cpu_subtype) |
c6643fcc NC |
671 | { |
672 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL: | |
673 | return strcat (buffer, " (ARM64_ALL)"); | |
674 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8: | |
675 | return strcat (buffer, " (ARM64_V8)"); | |
676 | default: | |
677 | break; | |
678 | } | |
679 | break; | |
680 | ||
681 | default: | |
682 | break; | |
683 | } | |
684 | ||
4bb7a87e | 685 | if (cpu_subtype != 0) |
c6643fcc NC |
686 | return strcat (buffer, _(" (<unknown>)")); |
687 | ||
688 | return buffer; | |
689 | } | |
690 | ||
0a1b45a2 | 691 | bool |
c6643fcc NC |
692 | bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr) |
693 | { | |
694 | FILE * file = (FILE *) ptr; | |
695 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
7fbd5f4e | 696 | char buff[128]; |
c6643fcc NC |
697 | |
698 | fprintf (file, _(" MACH-O header:\n")); | |
699 | fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic); | |
700 | fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype, | |
701 | cputype (mdata->header.cputype)); | |
702 | fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype, | |
7fbd5f4e | 703 | cpusubtype (mdata->header.cputype, mdata->header.cpusubtype, buff)); |
c6643fcc NC |
704 | fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype); |
705 | fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds); | |
706 | fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds); | |
707 | fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags); | |
708 | fprintf (file, _(" version: %x\n"), mdata->header.version); | |
4b24dd1a | 709 | |
0a1b45a2 | 710 | return true; |
c6643fcc NC |
711 | } |
712 | ||
3af9a47b NC |
713 | /* Copy any private info we understand from the input bfd |
714 | to the output bfd. */ | |
715 | ||
0a1b45a2 | 716 | bool |
967b2c53 | 717 | bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 718 | { |
c9ffd2ea TG |
719 | bfd_mach_o_data_struct *imdata; |
720 | bfd_mach_o_data_struct *omdata; | |
721 | bfd_mach_o_load_command *icmd; | |
722 | ||
154a1ee5 TG |
723 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
724 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
0a1b45a2 | 725 | return true; |
154a1ee5 | 726 | |
3af9a47b NC |
727 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
728 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
729 | ||
c9ffd2ea TG |
730 | imdata = bfd_mach_o_get_data (ibfd); |
731 | omdata = bfd_mach_o_get_data (obfd); | |
732 | ||
733 | /* Copy header flags. */ | |
734 | omdata->header.flags = imdata->header.flags; | |
735 | ||
c6643fcc NC |
736 | /* PR 23299. Copy the cputype. */ |
737 | if (imdata->header.cputype != omdata->header.cputype) | |
738 | { | |
739 | if (omdata->header.cputype == 0) | |
740 | omdata->header.cputype = imdata->header.cputype; | |
741 | else if (imdata->header.cputype != 0) | |
742 | /* Urg - what has happened ? */ | |
743 | _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"), | |
744 | (long) imdata->header.cputype, | |
745 | (long) omdata->header.cputype); | |
746 | } | |
747 | ||
748 | /* Copy the cpusubtype. */ | |
749 | omdata->header.cpusubtype = imdata->header.cpusubtype; | |
4b24dd1a | 750 | |
c9ffd2ea TG |
751 | /* Copy commands. */ |
752 | for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next) | |
753 | { | |
754 | bfd_mach_o_load_command *ocmd; | |
755 | ||
756 | switch (icmd->type) | |
757 | { | |
758 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
759 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
760 | case BFD_MACH_O_LC_DYLD_INFO: | |
761 | /* Command is copied. */ | |
762 | ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command)); | |
763 | if (ocmd == NULL) | |
0a1b45a2 | 764 | return false; |
c9ffd2ea TG |
765 | |
766 | /* Copy common fields. */ | |
767 | ocmd->type = icmd->type; | |
768 | ocmd->type_required = icmd->type_required; | |
769 | ocmd->offset = 0; | |
770 | ocmd->len = icmd->len; | |
771 | break; | |
772 | ||
773 | default: | |
774 | /* Command is not copied. */ | |
775 | continue; | |
776 | break; | |
777 | } | |
778 | ||
779 | switch (icmd->type) | |
780 | { | |
781 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
782 | { | |
783 | bfd_mach_o_dylib_command *idy = &icmd->command.dylib; | |
784 | bfd_mach_o_dylib_command *ody = &ocmd->command.dylib; | |
785 | ||
786 | ody->name_offset = idy->name_offset; | |
787 | ody->timestamp = idy->timestamp; | |
788 | ody->current_version = idy->current_version; | |
789 | ody->compatibility_version = idy->compatibility_version; | |
790 | ody->name_str = idy->name_str; | |
791 | } | |
792 | break; | |
793 | ||
794 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
795 | { | |
796 | bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker; | |
797 | bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker; | |
798 | ||
799 | ody->name_offset = idy->name_offset; | |
800 | ody->name_str = idy->name_str; | |
801 | } | |
802 | break; | |
803 | ||
804 | case BFD_MACH_O_LC_DYLD_INFO: | |
805 | { | |
806 | bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info; | |
807 | bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info; | |
808 | ||
809 | if (bfd_mach_o_read_dyld_content (ibfd, idy)) | |
810 | { | |
811 | ody->rebase_size = idy->rebase_size; | |
812 | ody->rebase_content = idy->rebase_content; | |
813 | ||
814 | ody->bind_size = idy->bind_size; | |
815 | ody->bind_content = idy->bind_content; | |
816 | ||
817 | ody->weak_bind_size = idy->weak_bind_size; | |
818 | ody->weak_bind_content = idy->weak_bind_content; | |
819 | ||
820 | ody->lazy_bind_size = idy->lazy_bind_size; | |
821 | ody->lazy_bind_content = idy->lazy_bind_content; | |
822 | ||
823 | ody->export_size = idy->export_size; | |
824 | ody->export_content = idy->export_content; | |
825 | } | |
86eafac0 NC |
826 | /* PR 17512L: file: 730e492d. */ |
827 | else | |
828 | { | |
1b786873 L |
829 | ody->rebase_size = |
830 | ody->bind_size = | |
831 | ody->weak_bind_size = | |
832 | ody->lazy_bind_size = | |
86eafac0 | 833 | ody->export_size = 0; |
1b786873 L |
834 | ody->rebase_content = |
835 | ody->bind_content = | |
836 | ody->weak_bind_content = | |
837 | ody->lazy_bind_content = | |
86eafac0 NC |
838 | ody->export_content = NULL; |
839 | } | |
c9ffd2ea TG |
840 | } |
841 | break; | |
842 | ||
843 | default: | |
844 | /* That command should be handled. */ | |
845 | abort (); | |
846 | } | |
847 | ||
848 | /* Insert command. */ | |
849 | bfd_mach_o_append_command (obfd, ocmd); | |
850 | } | |
154a1ee5 | 851 | |
0a1b45a2 | 852 | return true; |
3af9a47b NC |
853 | } |
854 | ||
0c9ef0f0 TG |
855 | /* This allows us to set up to 32 bits of flags (unless we invent some |
856 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
857 | without error checking - just overwrite. */ | |
68ffbac6 | 858 | |
0a1b45a2 | 859 | bool |
0c9ef0f0 TG |
860 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) |
861 | { | |
862 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
863 | ||
864 | if (!mdata) | |
0a1b45a2 | 865 | return false; |
0c9ef0f0 TG |
866 | |
867 | mdata->header.flags = flags; | |
0a1b45a2 | 868 | return true; |
0c9ef0f0 TG |
869 | } |
870 | ||
046b007d | 871 | /* Count the total number of symbols. */ |
154a1ee5 | 872 | |
3af9a47b | 873 | static long |
116c20d2 | 874 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 875 | { |
046b007d | 876 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 877 | |
046b007d TG |
878 | if (mdata->symtab == NULL) |
879 | return 0; | |
880 | return mdata->symtab->nsyms; | |
3af9a47b NC |
881 | } |
882 | ||
154a1ee5 | 883 | long |
116c20d2 | 884 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
885 | { |
886 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
887 | ||
3af9a47b NC |
888 | return ((nsyms + 1) * sizeof (asymbol *)); |
889 | } | |
890 | ||
154a1ee5 | 891 | long |
116c20d2 | 892 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 893 | { |
046b007d | 894 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 895 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
896 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
897 | unsigned long j; | |
3af9a47b NC |
898 | |
899 | if (nsyms < 0) | |
900 | return nsyms; | |
901 | ||
092d27ff TG |
902 | if (nsyms == 0) |
903 | { | |
904 | /* Do not try to read symbols if there are none. */ | |
905 | alocation[0] = NULL; | |
906 | return 0; | |
907 | } | |
908 | ||
afbb9e17 | 909 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 910 | { |
4eca0228 | 911 | _bfd_error_handler |
07d6d2b8 | 912 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); |
046b007d TG |
913 | return 0; |
914 | } | |
3af9a47b | 915 | |
046b007d | 916 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 917 | |
046b007d TG |
918 | for (j = 0; j < sym->nsyms; j++) |
919 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 920 | |
046b007d | 921 | alocation[j] = NULL; |
a95a4550 | 922 | |
3af9a47b NC |
923 | return nsyms; |
924 | } | |
925 | ||
aeefa1c9 TG |
926 | /* Create synthetic symbols for indirect symbols. */ |
927 | ||
b2b62060 TG |
928 | long |
929 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
07d6d2b8 AM |
930 | long symcount ATTRIBUTE_UNUSED, |
931 | asymbol **syms ATTRIBUTE_UNUSED, | |
932 | long dynsymcount ATTRIBUTE_UNUSED, | |
933 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
934 | asymbol **ret) | |
b2b62060 TG |
935 | { |
936 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
937 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
938 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
939 | asymbol *s; | |
896ca098 NC |
940 | char * s_start; |
941 | char * s_end; | |
b2b62060 TG |
942 | unsigned long count, i, j, n; |
943 | size_t size; | |
944 | char *names; | |
945 | char *nul_name; | |
896ca098 | 946 | const char stub [] = "$stub"; |
b2b62060 TG |
947 | |
948 | *ret = NULL; | |
949 | ||
aeefa1c9 | 950 | /* Stop now if no symbols or no indirect symbols. */ |
896ca098 NC |
951 | if (dysymtab == NULL || dysymtab->nindirectsyms == 0 |
952 | || symtab == NULL || symtab->symbols == NULL) | |
b2b62060 TG |
953 | return 0; |
954 | ||
aeefa1c9 TG |
955 | /* We need to allocate a bfd symbol for every indirect symbol and to |
956 | allocate the memory for its name. */ | |
b2b62060 TG |
957 | count = dysymtab->nindirectsyms; |
958 | size = count * sizeof (asymbol) + 1; | |
959 | ||
960 | for (j = 0; j < count; j++) | |
961 | { | |
896ca098 | 962 | const char * strng; |
b2b62060 | 963 | unsigned int isym = dysymtab->indirect_syms[j]; |
aeefa1c9 TG |
964 | |
965 | /* Some indirect symbols are anonymous. */ | |
896ca098 NC |
966 | if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name)) |
967 | /* PR 17512: file: f5b8eeba. */ | |
968 | size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub); | |
b2b62060 TG |
969 | } |
970 | ||
896ca098 NC |
971 | s_start = bfd_malloc (size); |
972 | s = *ret = (asymbol *) s_start; | |
b2b62060 TG |
973 | if (s == NULL) |
974 | return -1; | |
975 | names = (char *) (s + count); | |
976 | nul_name = names; | |
977 | *names++ = 0; | |
896ca098 | 978 | s_end = s_start + size; |
68ffbac6 | 979 | |
b2b62060 TG |
980 | n = 0; |
981 | for (i = 0; i < mdata->nsects; i++) | |
982 | { | |
983 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 984 | unsigned int first, last; |
b2b62060 TG |
985 | bfd_vma addr; |
986 | bfd_vma entry_size; | |
68ffbac6 | 987 | |
b2b62060 | 988 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
07d6d2b8 AM |
989 | { |
990 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
991 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
992 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
993 | /* Only these sections have indirect symbols. */ | |
994 | first = sec->reserved1; | |
995 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
996 | addr = sec->addr; | |
997 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
896ca098 NC |
998 | |
999 | /* PR 17512: file: 08e15eec. */ | |
1000 | if (first >= count || last >= count || first > last) | |
1001 | goto fail; | |
1002 | ||
07d6d2b8 AM |
1003 | for (j = first; j < last; j++) |
1004 | { | |
1005 | unsigned int isym = dysymtab->indirect_syms[j]; | |
b2b62060 | 1006 | |
896ca098 NC |
1007 | /* PR 17512: file: 04d64d9b. */ |
1008 | if (((char *) s) + sizeof (* s) > s_end) | |
1009 | goto fail; | |
1010 | ||
07d6d2b8 AM |
1011 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
1012 | s->section = sec->bfdsection; | |
1013 | s->value = addr - sec->addr; | |
1014 | s->udata.p = NULL; | |
68ffbac6 | 1015 | |
07d6d2b8 AM |
1016 | if (isym < symtab->nsyms |
1017 | && symtab->symbols[isym].symbol.name) | |
1018 | { | |
1019 | const char *sym = symtab->symbols[isym].symbol.name; | |
1020 | size_t len; | |
b2b62060 | 1021 | |
07d6d2b8 AM |
1022 | s->name = names; |
1023 | len = strlen (sym); | |
896ca098 NC |
1024 | /* PR 17512: file: 47dfd4d2. */ |
1025 | if (names + len >= s_end) | |
1026 | goto fail; | |
07d6d2b8 AM |
1027 | memcpy (names, sym, len); |
1028 | names += len; | |
896ca098 NC |
1029 | /* PR 17512: file: 18f340a4. */ |
1030 | if (names + sizeof (stub) >= s_end) | |
1031 | goto fail; | |
07d6d2b8 AM |
1032 | memcpy (names, stub, sizeof (stub)); |
1033 | names += sizeof (stub); | |
1034 | } | |
1035 | else | |
1036 | s->name = nul_name; | |
1037 | ||
1038 | addr += entry_size; | |
1039 | s++; | |
1040 | n++; | |
1041 | } | |
1042 | break; | |
1043 | default: | |
1044 | break; | |
1045 | } | |
b2b62060 TG |
1046 | } |
1047 | ||
1048 | return n; | |
896ca098 NC |
1049 | |
1050 | fail: | |
1051 | free (s_start); | |
1052 | * ret = NULL; | |
1053 | return -1; | |
b2b62060 TG |
1054 | } |
1055 | ||
154a1ee5 | 1056 | void |
116c20d2 NC |
1057 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
1058 | asymbol *symbol, | |
1059 | symbol_info *ret) | |
3af9a47b NC |
1060 | { |
1061 | bfd_symbol_info (symbol, ret); | |
1062 | } | |
1063 | ||
154a1ee5 | 1064 | void |
116c20d2 | 1065 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 1066 | void * afile, |
116c20d2 NC |
1067 | asymbol *symbol, |
1068 | bfd_print_symbol_type how) | |
3af9a47b NC |
1069 | { |
1070 | FILE *file = (FILE *) afile; | |
15e1c58a | 1071 | const char *name; |
92bc0e80 | 1072 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
1073 | |
1074 | switch (how) | |
1075 | { | |
1076 | case bfd_print_symbol_name: | |
1077 | fprintf (file, "%s", symbol->name); | |
1078 | break; | |
1079 | default: | |
91d6fa6a | 1080 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
1081 | if (asym->n_type & BFD_MACH_O_N_STAB) |
1082 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 1083 | else |
92bc0e80 | 1084 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
1085 | { |
1086 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
1087 | if (symbol->value == 0) |
1088 | name = "UND"; | |
1089 | else | |
1090 | name = "COM"; | |
15e1c58a TG |
1091 | break; |
1092 | case BFD_MACH_O_N_ABS: | |
1093 | name = "ABS"; | |
1094 | break; | |
1095 | case BFD_MACH_O_N_INDR: | |
1096 | name = "INDR"; | |
1097 | break; | |
1098 | case BFD_MACH_O_N_PBUD: | |
1099 | name = "PBUD"; | |
1100 | break; | |
1101 | case BFD_MACH_O_N_SECT: | |
1102 | name = "SECT"; | |
1103 | break; | |
1104 | default: | |
1105 | name = "???"; | |
1106 | break; | |
1107 | } | |
1108 | if (name == NULL) | |
1109 | name = ""; | |
92bc0e80 | 1110 | fprintf (file, " %02x %-6s %02x %04x", |
07d6d2b8 | 1111 | asym->n_type, name, asym->n_sect, asym->n_desc); |
92bc0e80 TG |
1112 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 |
1113 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 1114 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 1115 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
1116 | } |
1117 | } | |
1118 | ||
1119 | static void | |
116c20d2 | 1120 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 1121 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
1122 | enum bfd_architecture *type, |
1123 | unsigned long *subtype) | |
3af9a47b NC |
1124 | { |
1125 | *subtype = bfd_arch_unknown; | |
1126 | ||
1127 | switch (mtype) | |
1128 | { | |
0b2de107 TG |
1129 | case BFD_MACH_O_CPU_TYPE_VAX: |
1130 | *type = bfd_arch_vax; | |
1131 | break; | |
1132 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1133 | *type = bfd_arch_m68k; | |
1134 | break; | |
1e8a024a TG |
1135 | case BFD_MACH_O_CPU_TYPE_I386: |
1136 | *type = bfd_arch_i386; | |
1137 | *subtype = bfd_mach_i386_i386; | |
1138 | break; | |
1139 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
1140 | *type = bfd_arch_i386; | |
1141 | *subtype = bfd_mach_x86_64; | |
1142 | break; | |
0b2de107 TG |
1143 | case BFD_MACH_O_CPU_TYPE_MIPS: |
1144 | *type = bfd_arch_mips; | |
1145 | break; | |
1146 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
1147 | *type = bfd_arch_m98k; | |
1148 | break; | |
1149 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
1150 | *type = bfd_arch_hppa; | |
1151 | break; | |
1152 | case BFD_MACH_O_CPU_TYPE_ARM: | |
1153 | *type = bfd_arch_arm; | |
1154 | switch (msubtype) | |
07d6d2b8 AM |
1155 | { |
1156 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
1157 | *subtype = bfd_mach_arm_4T; | |
1158 | break; | |
1159 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
1160 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
1161 | break; | |
1162 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
1163 | *subtype = bfd_mach_arm_5TE; | |
1164 | break; | |
1165 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
1166 | *subtype = bfd_mach_arm_XScale; | |
1167 | break; | |
1168 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
1169 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
1170 | break; | |
1171 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
1172 | default: | |
1173 | break; | |
1174 | } | |
0b2de107 | 1175 | break; |
1e8a024a TG |
1176 | case BFD_MACH_O_CPU_TYPE_SPARC: |
1177 | *type = bfd_arch_sparc; | |
1178 | *subtype = bfd_mach_sparc; | |
1179 | break; | |
0b2de107 TG |
1180 | case BFD_MACH_O_CPU_TYPE_ALPHA: |
1181 | *type = bfd_arch_alpha; | |
1182 | break; | |
1e8a024a TG |
1183 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
1184 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1185 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
1186 | break; |
1187 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
1188 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1189 | *subtype = bfd_mach_ppc64; |
1e8a024a | 1190 | break; |
d8028530 TG |
1191 | case BFD_MACH_O_CPU_TYPE_ARM64: |
1192 | *type = bfd_arch_aarch64; | |
1193 | *subtype = bfd_mach_aarch64; | |
1194 | break; | |
3af9a47b | 1195 | default: |
1e8a024a TG |
1196 | *type = bfd_arch_unknown; |
1197 | break; | |
3af9a47b NC |
1198 | } |
1199 | } | |
a95a4550 | 1200 | |
c9ffd2ea TG |
1201 | /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the |
1202 | number of bytes written or -1 in case of error. */ | |
1203 | ||
1204 | static int | |
1205 | bfd_mach_o_pad4 (bfd *abfd, unsigned int len) | |
1206 | { | |
1207 | if (len % 4 != 0) | |
1208 | { | |
1209 | char pad[4] = {0,0,0,0}; | |
1210 | unsigned int padlen = 4 - (len % 4); | |
1211 | ||
1212 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1213 | return -1; | |
1214 | ||
1215 | return padlen; | |
1216 | } | |
1217 | else | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | /* Likewise, but for a command. */ | |
1222 | ||
1223 | static int | |
1224 | bfd_mach_o_pad_command (bfd *abfd, unsigned int len) | |
1225 | { | |
1226 | unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
1227 | ||
1228 | if (len % align != 0) | |
1229 | { | |
1230 | char pad[8] = {0}; | |
1231 | unsigned int padlen = align - (len % align); | |
1232 | ||
1233 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1234 | return -1; | |
1235 | ||
1236 | return padlen; | |
1237 | } | |
1238 | else | |
1239 | return 0; | |
1240 | } | |
1241 | ||
0a1b45a2 | 1242 | static bool |
116c20d2 NC |
1243 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
1244 | { | |
46d1c23b | 1245 | struct mach_o_header_external raw; |
1e8a024a TG |
1246 | unsigned int size; |
1247 | ||
c2f09c75 | 1248 | size = mach_o_wide_p (header) ? |
154a1ee5 | 1249 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 1250 | |
46d1c23b TG |
1251 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
1252 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
1253 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
1254 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
1255 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
1256 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
1257 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 1258 | |
c2f09c75 | 1259 | if (mach_o_wide_p (header)) |
46d1c23b | 1260 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 1261 | |
c2f09c75 | 1262 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1263 | || bfd_bwrite (&raw, size, abfd) != size) |
0a1b45a2 | 1264 | return false; |
116c20d2 | 1265 | |
0a1b45a2 | 1266 | return true; |
116c20d2 NC |
1267 | } |
1268 | ||
0a1b45a2 | 1269 | static bool |
ab273af8 | 1270 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
1271 | { |
1272 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1273 | unsigned int i; | |
46d1c23b | 1274 | struct mach_o_thread_command_external raw; |
92bc0e80 | 1275 | unsigned int offset; |
116c20d2 NC |
1276 | |
1277 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1278 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1279 | ||
c9ffd2ea | 1280 | offset = BFD_MACH_O_LC_SIZE; |
116c20d2 NC |
1281 | for (i = 0; i < cmd->nflavours; i++) |
1282 | { | |
1283 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b | 1284 | BFD_ASSERT (cmd->flavours[i].offset == |
07d6d2b8 | 1285 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); |
116c20d2 | 1286 | |
46d1c23b TG |
1287 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
1288 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 1289 | |
c2f09c75 | 1290 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 1291 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 1292 | return false; |
116c20d2 | 1293 | |
46d1c23b | 1294 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
1295 | } |
1296 | ||
0a1b45a2 | 1297 | return true; |
116c20d2 NC |
1298 | } |
1299 | ||
0a1b45a2 | 1300 | static bool |
c9ffd2ea TG |
1301 | bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
1302 | { | |
1303 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
1304 | struct mach_o_str_command_external raw; | |
1305 | unsigned int namelen; | |
1306 | ||
1307 | bfd_h_put_32 (abfd, cmd->name_offset, raw.str); | |
1308 | ||
1309 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1310 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 1311 | return false; |
c9ffd2ea TG |
1312 | |
1313 | namelen = strlen (cmd->name_str) + 1; | |
1314 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
0a1b45a2 | 1315 | return false; |
c9ffd2ea TG |
1316 | |
1317 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
0a1b45a2 | 1318 | return false; |
c9ffd2ea | 1319 | |
0a1b45a2 | 1320 | return true; |
c9ffd2ea TG |
1321 | } |
1322 | ||
0a1b45a2 | 1323 | static bool |
c9ffd2ea TG |
1324 | bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
1325 | { | |
1326 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
1327 | struct mach_o_dylib_command_external raw; | |
1328 | unsigned int namelen; | |
1329 | ||
1330 | bfd_h_put_32 (abfd, cmd->name_offset, raw.name); | |
1331 | bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp); | |
1332 | bfd_h_put_32 (abfd, cmd->current_version, raw.current_version); | |
1333 | bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version); | |
1334 | ||
1335 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1336 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 1337 | return false; |
c9ffd2ea TG |
1338 | |
1339 | namelen = strlen (cmd->name_str) + 1; | |
1340 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
0a1b45a2 | 1341 | return false; |
c9ffd2ea TG |
1342 | |
1343 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
0a1b45a2 | 1344 | return false; |
c9ffd2ea | 1345 | |
0a1b45a2 | 1346 | return true; |
c9ffd2ea TG |
1347 | } |
1348 | ||
0a1b45a2 | 1349 | static bool |
c9ffd2ea TG |
1350 | bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command) |
1351 | { | |
1352 | bfd_mach_o_main_command *cmd = &command->command.main; | |
1353 | struct mach_o_entry_point_command_external raw; | |
1354 | ||
1355 | bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff); | |
1356 | bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize); | |
1357 | ||
1358 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1359 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 1360 | return false; |
c9ffd2ea | 1361 | |
0a1b45a2 | 1362 | return true; |
c9ffd2ea TG |
1363 | } |
1364 | ||
0a1b45a2 | 1365 | static bool |
c9ffd2ea TG |
1366 | bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
1367 | { | |
1368 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
1369 | struct mach_o_dyld_info_command_external raw; | |
1370 | ||
1371 | bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off); | |
1372 | bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size); | |
1373 | bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off); | |
1374 | bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size); | |
1375 | bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off); | |
1376 | bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size); | |
1377 | bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off); | |
1378 | bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size); | |
1379 | bfd_h_put_32 (abfd, cmd->export_off, raw.export_off); | |
1380 | bfd_h_put_32 (abfd, cmd->export_size, raw.export_size); | |
1381 | ||
1382 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1383 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 1384 | return false; |
c9ffd2ea TG |
1385 | |
1386 | if (cmd->rebase_size != 0) | |
1387 | if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0 | |
1388 | || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) != | |
1389 | cmd->rebase_size)) | |
0a1b45a2 | 1390 | return false; |
c9ffd2ea TG |
1391 | |
1392 | if (cmd->bind_size != 0) | |
1393 | if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0 | |
1394 | || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) != | |
1395 | cmd->bind_size)) | |
0a1b45a2 | 1396 | return false; |
c9ffd2ea TG |
1397 | |
1398 | if (cmd->weak_bind_size != 0) | |
1399 | if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0 | |
1400 | || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) != | |
1401 | cmd->weak_bind_size)) | |
0a1b45a2 | 1402 | return false; |
c9ffd2ea TG |
1403 | |
1404 | if (cmd->lazy_bind_size != 0) | |
1405 | if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0 | |
1406 | || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) != | |
1407 | cmd->lazy_bind_size)) | |
0a1b45a2 | 1408 | return false; |
c9ffd2ea TG |
1409 | |
1410 | if (cmd->export_size != 0) | |
1411 | if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0 | |
1412 | || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) != | |
1413 | cmd->export_size)) | |
0a1b45a2 | 1414 | return false; |
c9ffd2ea | 1415 | |
0a1b45a2 | 1416 | return true; |
c9ffd2ea TG |
1417 | } |
1418 | ||
92bc0e80 TG |
1419 | long |
1420 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 1421 | asection *asect) |
92bc0e80 | 1422 | { |
242a1159 | 1423 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
1424 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
1425 | { | |
1426 | bfd_set_error (bfd_error_file_too_big); | |
1427 | return -1; | |
1428 | } | |
242a1159 | 1429 | #endif |
7a6e0d89 | 1430 | return (asect->reloc_count + 1) * sizeof (arelent *); |
92bc0e80 TG |
1431 | } |
1432 | ||
19765f52 IS |
1433 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1434 | of the fields in the relocation information vary per target endian-ness. */ | |
1435 | ||
bcb51645 | 1436 | void |
19765f52 | 1437 | bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel, |
c6643fcc | 1438 | unsigned char *fields) |
19765f52 IS |
1439 | { |
1440 | unsigned char info = fields[3]; | |
1441 | ||
1442 | if (bfd_big_endian (abfd)) | |
1443 | { | |
1444 | rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2]; | |
1445 | rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1446 | rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0; | |
68ffbac6 | 1447 | rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT) |
19765f52 IS |
1448 | & BFD_MACH_O_LENGTH_MASK; |
1449 | rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0; | |
1450 | } | |
1451 | else | |
1452 | { | |
1453 | rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0]; | |
1454 | rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1455 | rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0; | |
68ffbac6 | 1456 | rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT) |
19765f52 IS |
1457 | & BFD_MACH_O_LENGTH_MASK; |
1458 | rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0; | |
1459 | } | |
1460 | } | |
1461 | ||
bcb51645 TG |
1462 | /* Set syms_ptr_ptr and addend of RES. */ |
1463 | ||
0a1b45a2 | 1464 | bool |
bcb51645 TG |
1465 | bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd, |
1466 | bfd_mach_o_reloc_info *reloc, | |
1467 | arelent *res, asymbol **syms) | |
92bc0e80 | 1468 | { |
046b007d | 1469 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bcb51645 | 1470 | unsigned int num; |
b32e07d7 TG |
1471 | asymbol **sym; |
1472 | ||
bcb51645 TG |
1473 | /* Non-scattered relocation. */ |
1474 | reloc->r_scattered = 0; | |
1475 | res->addend = 0; | |
1476 | ||
1477 | num = reloc->r_value; | |
1478 | ||
1479 | if (reloc->r_extern) | |
1480 | { | |
1481 | /* PR 17512: file: 8396-1185-0.004. */ | |
1482 | if (num >= (unsigned) bfd_mach_o_count_symbols (abfd)) | |
1483 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1484 | else if (syms == NULL) | |
1485 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1486 | else | |
1487 | /* An external symbol number. */ | |
1488 | sym = syms + num; | |
1489 | } | |
1490 | else if (num == 0x00ffffff || num == 0) | |
1491 | { | |
1492 | /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this | |
1493 | is generic code, we don't know wether this is really a PAIR. | |
1494 | This value is almost certainly not a valid section number, hence | |
1495 | this specific case to avoid an assertion failure. | |
1496 | Target specific swap_reloc_in routine should adjust that. */ | |
1497 | sym = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1498 | } | |
1499 | else | |
1500 | { | |
1501 | /* PR 17512: file: 006-2964-0.004. */ | |
1502 | if (num > mdata->nsects) | |
a68aa5d3 NC |
1503 | { |
1504 | _bfd_error_handler (_("\ | |
1505 | malformed mach-o reloc: section index is greater than the number of sections")); | |
0a1b45a2 | 1506 | return false; |
a68aa5d3 | 1507 | } |
bcb51645 TG |
1508 | |
1509 | /* A section number. */ | |
1510 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1511 | /* For a symbol defined in section S, the addend (stored in the | |
1512 | binary) contains the address of the section. To comply with | |
1513 | bfd convention, subtract the section address. | |
1514 | Use the address from the header, so that the user can modify | |
07d6d2b8 | 1515 | the vma of the section. */ |
bcb51645 TG |
1516 | res->addend = -mdata->sections[num - 1]->addr; |
1517 | } | |
1518 | ||
1519 | /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset | |
1520 | in the lower 16bits of the address value. So we have to find the | |
1521 | 'symbol' from the preceding reloc. We do this even though the | |
1522 | section symbol is probably not needed here, because NULL symbol | |
1523 | values cause an assert in generic BFD code. This must be done in | |
1524 | the PPC swap_reloc_in routine. */ | |
1525 | res->sym_ptr_ptr = sym; | |
1526 | ||
0a1b45a2 | 1527 | return true; |
bcb51645 TG |
1528 | } |
1529 | ||
1530 | /* Do most of the work for canonicalize_relocs on RAW: create internal | |
1531 | representation RELOC and set most fields of RES using symbol table SYMS. | |
1532 | Each target still has to set the howto of RES and possibly adjust other | |
1533 | fields. | |
1534 | Previously the Mach-O hook point was simply swap_in, but some targets | |
1535 | (like arm64) don't follow the generic rules (symnum is a value for the | |
1536 | non-scattered relocation ADDEND). */ | |
1537 | ||
0a1b45a2 | 1538 | bool |
bcb51645 TG |
1539 | bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd, |
1540 | struct mach_o_reloc_info_external *raw, | |
1541 | bfd_mach_o_reloc_info *reloc, | |
1542 | arelent *res, asymbol **syms) | |
1543 | { | |
1544 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1545 | bfd_vma addr; | |
1546 | ||
46d1c23b | 1547 | addr = bfd_get_32 (abfd, raw->r_address); |
19765f52 IS |
1548 | res->sym_ptr_ptr = NULL; |
1549 | res->addend = 0; | |
f4716ee2 | 1550 | |
b32e07d7 TG |
1551 | if (addr & BFD_MACH_O_SR_SCATTERED) |
1552 | { | |
1553 | unsigned int j; | |
19765f52 | 1554 | bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum); |
b32e07d7 | 1555 | |
19765f52 | 1556 | /* Scattered relocation, can't be extern. */ |
bcb51645 TG |
1557 | reloc->r_scattered = 1; |
1558 | reloc->r_extern = 0; | |
19765f52 IS |
1559 | |
1560 | /* Extract section and offset from r_value (symnum). */ | |
bcb51645 | 1561 | reloc->r_value = symnum; |
19765f52 IS |
1562 | /* FIXME: This breaks when a symbol in a reloc exactly follows the |
1563 | end of the data for the section (e.g. in a calculation of section | |
1564 | data length). At present, the symbol will end up associated with | |
1565 | the following section or, if it falls within alignment padding, as | |
1566 | null - which will assert later. */ | |
b32e07d7 | 1567 | for (j = 0; j < mdata->nsects; j++) |
07d6d2b8 AM |
1568 | { |
1569 | bfd_mach_o_section *sect = mdata->sections[j]; | |
1570 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
1571 | { | |
1572 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1573 | res->addend = symnum - sect->addr; | |
1574 | break; | |
1575 | } | |
1576 | } | |
19765f52 IS |
1577 | |
1578 | /* Extract the info and address fields from r_address. */ | |
bcb51645 TG |
1579 | reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
1580 | reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1581 | reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
1582 | reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr); | |
19765f52 | 1583 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); |
b32e07d7 TG |
1584 | } |
1585 | else | |
1586 | { | |
19765f52 | 1587 | /* Non-scattered relocation. */ |
bcb51645 TG |
1588 | reloc->r_scattered = 0; |
1589 | reloc->r_address = addr; | |
1590 | res->address = addr; | |
f4716ee2 | 1591 | |
19765f52 | 1592 | /* The value and info fields have to be extracted dependent on target |
07d6d2b8 | 1593 | endian-ness. */ |
bcb51645 | 1594 | bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum); |
19765f52 | 1595 | |
bcb51645 TG |
1596 | if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc, |
1597 | res, syms)) | |
0a1b45a2 | 1598 | return false; |
b32e07d7 | 1599 | } |
f4716ee2 TG |
1600 | |
1601 | /* We have set up a reloc with all the information present, so the swapper | |
1602 | can modify address, value and addend fields, if necessary, to convey | |
1603 | information in the generic BFD reloc that is mach-o specific. */ | |
19765f52 | 1604 | |
0a1b45a2 | 1605 | return true; |
b32e07d7 TG |
1606 | } |
1607 | ||
1608 | static int | |
1609 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
07d6d2b8 AM |
1610 | unsigned long count, |
1611 | arelent *res, asymbol **syms) | |
b32e07d7 | 1612 | { |
bcb51645 | 1613 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
92bc0e80 | 1614 | unsigned long i; |
a68aa5d3 | 1615 | struct mach_o_reloc_info_external *native_relocs = NULL; |
a4425a57 | 1616 | size_t native_size; |
92bc0e80 | 1617 | |
92bc0e80 | 1618 | /* Allocate and read relocs. */ |
a4425a57 AM |
1619 | if (_bfd_mul_overflow (count, BFD_MACH_O_RELENT_SIZE, &native_size)) |
1620 | /* PR 17512: file: 09477b57. */ | |
a68aa5d3 | 1621 | goto err; |
64d29018 | 1622 | |
2bb3687b AM |
1623 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) |
1624 | return -1; | |
1625 | native_relocs = (struct mach_o_reloc_info_external *) | |
1626 | _bfd_malloc_and_read (abfd, native_size, native_size); | |
92bc0e80 TG |
1627 | if (native_relocs == NULL) |
1628 | return -1; | |
1629 | ||
b32e07d7 | 1630 | for (i = 0; i < count; i++) |
92bc0e80 | 1631 | { |
bcb51645 | 1632 | if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i], |
ca4cf9b9 | 1633 | &res[i], syms, res)) |
07d6d2b8 | 1634 | goto err; |
92bc0e80 | 1635 | } |
b32e07d7 TG |
1636 | free (native_relocs); |
1637 | return i; | |
a68aa5d3 | 1638 | |
b32e07d7 TG |
1639 | err: |
1640 | free (native_relocs); | |
a68aa5d3 NC |
1641 | if (bfd_get_error () == bfd_error_no_error) |
1642 | bfd_set_error (bfd_error_invalid_operation); | |
b32e07d7 TG |
1643 | return -1; |
1644 | } | |
1645 | ||
1646 | long | |
1647 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
07d6d2b8 | 1648 | arelent **rels, asymbol **syms) |
b32e07d7 TG |
1649 | { |
1650 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1651 | unsigned long i; | |
1652 | arelent *res; | |
1653 | ||
1654 | if (asect->reloc_count == 0) | |
1655 | return 0; | |
1656 | ||
1657 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1658 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 | 1659 | return 0; |
92bc0e80 | 1660 | |
dff55db0 | 1661 | if (asect->relocation == NULL) |
92bc0e80 | 1662 | { |
a4425a57 AM |
1663 | size_t amt; |
1664 | ||
1665 | if (_bfd_mul_overflow (asect->reloc_count, sizeof (arelent), &amt)) | |
64d29018 | 1666 | return -1; |
a4425a57 | 1667 | res = bfd_malloc (amt); |
dff55db0 | 1668 | if (res == NULL) |
07d6d2b8 | 1669 | return -1; |
dff55db0 TG |
1670 | |
1671 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
07d6d2b8 AM |
1672 | asect->reloc_count, res, syms) < 0) |
1673 | { | |
1674 | free (res); | |
1675 | return -1; | |
1676 | } | |
dff55db0 | 1677 | asect->relocation = res; |
92bc0e80 TG |
1678 | } |
1679 | ||
dff55db0 | 1680 | res = asect->relocation; |
92bc0e80 | 1681 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1682 | rels[i] = &res[i]; |
1683 | rels[i] = NULL; | |
92bc0e80 | 1684 | |
b32e07d7 TG |
1685 | return i; |
1686 | } | |
92bc0e80 | 1687 | |
b32e07d7 TG |
1688 | long |
1689 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1690 | { | |
1691 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1692 | |
b32e07d7 TG |
1693 | if (mdata->dysymtab == NULL) |
1694 | return 1; | |
dff55db0 | 1695 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1696 | * sizeof (arelent *); |
1697 | } | |
92bc0e80 | 1698 | |
b32e07d7 TG |
1699 | long |
1700 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
07d6d2b8 | 1701 | struct bfd_symbol **syms) |
b32e07d7 TG |
1702 | { |
1703 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1704 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1705 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1706 | unsigned long i; | |
1707 | arelent *res; | |
1708 | ||
1709 | if (dysymtab == NULL) | |
1710 | return 0; | |
1711 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1712 | return 0; | |
1713 | ||
1714 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1715 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 TG |
1716 | return 0; |
1717 | ||
dff55db0 | 1718 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1719 | { |
a4425a57 AM |
1720 | ufile_ptr filesize = bfd_get_file_size (abfd); |
1721 | size_t amt; | |
1722 | ||
1723 | if (filesize != 0) | |
1724 | { | |
1725 | if (dysymtab->extreloff > filesize | |
1726 | || dysymtab->nextrel > ((filesize - dysymtab->extreloff) | |
1727 | / BFD_MACH_O_RELENT_SIZE) | |
1728 | || dysymtab->locreloff > filesize | |
1729 | || dysymtab->nlocrel > ((filesize - dysymtab->locreloff) | |
1730 | / BFD_MACH_O_RELENT_SIZE)) | |
1731 | { | |
1732 | bfd_set_error (bfd_error_file_truncated); | |
1733 | return -1; | |
1734 | } | |
1735 | } | |
1736 | if (_bfd_mul_overflow (dysymtab->nextrel + dysymtab->nlocrel, | |
1737 | sizeof (arelent), &amt)) | |
1738 | { | |
1739 | bfd_set_error (bfd_error_file_too_big); | |
1740 | return -1; | |
1741 | } | |
64d29018 | 1742 | |
a4425a57 | 1743 | res = bfd_malloc (amt); |
dff55db0 | 1744 | if (res == NULL) |
07d6d2b8 | 1745 | return -1; |
b32e07d7 | 1746 | |
dff55db0 | 1747 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
07d6d2b8 AM |
1748 | dysymtab->nextrel, res, syms) < 0) |
1749 | { | |
1750 | free (res); | |
1751 | return -1; | |
1752 | } | |
dff55db0 TG |
1753 | |
1754 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
07d6d2b8 AM |
1755 | dysymtab->nlocrel, |
1756 | res + dysymtab->nextrel, syms) < 0) | |
1757 | { | |
1758 | free (res); | |
1759 | return -1; | |
1760 | } | |
dff55db0 TG |
1761 | |
1762 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1763 | } |
1764 | ||
dff55db0 | 1765 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1766 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1767 | rels[i] = &res[i]; | |
1768 | rels[i] = NULL; | |
92bc0e80 TG |
1769 | return i; |
1770 | } | |
1771 | ||
19765f52 IS |
1772 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1773 | of the fields in the relocation information vary per target endian-ness. */ | |
1774 | ||
1775 | static void | |
1776 | bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields, | |
c6643fcc | 1777 | bfd_mach_o_reloc_info *rel) |
19765f52 IS |
1778 | { |
1779 | unsigned char info = 0; | |
1780 | ||
1781 | BFD_ASSERT (rel->r_type <= 15); | |
1782 | BFD_ASSERT (rel->r_length <= 3); | |
1783 | ||
1784 | if (bfd_big_endian (abfd)) | |
1785 | { | |
1786 | fields[0] = (rel->r_value >> 16) & 0xff; | |
1787 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1788 | fields[2] = rel->r_value & 0xff; | |
1789 | info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT; | |
1790 | info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0; | |
1791 | info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT; | |
1792 | info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0; | |
1793 | } | |
1794 | else | |
1795 | { | |
1796 | fields[2] = (rel->r_value >> 16) & 0xff; | |
1797 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1798 | fields[0] = rel->r_value & 0xff; | |
1799 | info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT; | |
1800 | info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0; | |
1801 | info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT; | |
1802 | info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0; | |
1803 | } | |
1804 | fields[3] = info; | |
1805 | } | |
1806 | ||
0a1b45a2 | 1807 | static bool |
ab273af8 | 1808 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1809 | { |
92bc0e80 TG |
1810 | unsigned int i; |
1811 | arelent **entries; | |
1812 | asection *sec; | |
1813 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1814 | ||
1815 | sec = section->bfdsection; | |
1816 | if (sec->reloc_count == 0) | |
0a1b45a2 | 1817 | return true; |
92bc0e80 TG |
1818 | |
1819 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
0a1b45a2 | 1820 | return true; |
92bc0e80 | 1821 | |
92bc0e80 | 1822 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
0a1b45a2 | 1823 | return false; |
92bc0e80 TG |
1824 | |
1825 | /* Convert and write. */ | |
1826 | entries = section->bfdsection->orelocation; | |
1827 | for (i = 0; i < section->nreloc; i++) | |
1828 | { | |
1829 | arelent *rel = entries[i]; | |
46d1c23b | 1830 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1831 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1832 | ||
1833 | /* Convert relocation to an intermediate representation. */ | |
1834 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
0a1b45a2 | 1835 | return false; |
92bc0e80 TG |
1836 | |
1837 | /* Lower the relocation info. */ | |
1838 | if (pinfo->r_scattered) | |
07d6d2b8 AM |
1839 | { |
1840 | unsigned long v; | |
1841 | ||
1842 | v = BFD_MACH_O_SR_SCATTERED | |
1843 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1844 | | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length) | |
1845 | | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type) | |
1846 | | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address); | |
1847 | /* Note: scattered relocs have field in reverse order... */ | |
1848 | bfd_put_32 (abfd, v, raw.r_address); | |
1849 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
1850 | } | |
92bc0e80 | 1851 | else |
07d6d2b8 AM |
1852 | { |
1853 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); | |
1854 | bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum, | |
19765f52 | 1855 | pinfo); |
07d6d2b8 | 1856 | } |
92bc0e80 | 1857 | |
46d1c23b | 1858 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
07d6d2b8 | 1859 | != BFD_MACH_O_RELENT_SIZE) |
0a1b45a2 | 1860 | return false; |
92bc0e80 | 1861 | } |
0a1b45a2 | 1862 | return true; |
92bc0e80 TG |
1863 | } |
1864 | ||
0a1b45a2 | 1865 | static bool |
ab273af8 | 1866 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1867 | { |
46d1c23b TG |
1868 | struct mach_o_section_32_external raw; |
1869 | ||
1870 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1871 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1872 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1873 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1874 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1875 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1876 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1877 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1878 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1879 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1880 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1881 | ||
1882 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1883 | != BFD_MACH_O_SECTION_SIZE) |
0a1b45a2 | 1884 | return false; |
116c20d2 | 1885 | |
0a1b45a2 | 1886 | return true; |
116c20d2 NC |
1887 | } |
1888 | ||
0a1b45a2 | 1889 | static bool |
ab273af8 | 1890 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1891 | { |
46d1c23b TG |
1892 | struct mach_o_section_64_external raw; |
1893 | ||
1894 | memcpy (raw.sectname, section->sectname, 16); | |
1895 | memcpy (raw.segname, section->segname, 16); | |
1896 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1897 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1898 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1899 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1900 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1901 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1902 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1903 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1904 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1905 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1906 | ||
1907 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1908 | != BFD_MACH_O_SECTION_64_SIZE) |
0a1b45a2 | 1909 | return false; |
116c20d2 | 1910 | |
0a1b45a2 | 1911 | return true; |
1e8a024a TG |
1912 | } |
1913 | ||
0a1b45a2 | 1914 | static bool |
ab273af8 | 1915 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1916 | { |
46d1c23b | 1917 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1918 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1919 | bfd_mach_o_section *sec; |
1e8a024a | 1920 | |
c2f09c75 TG |
1921 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1922 | ||
f1bde64c TG |
1923 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1924 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
0a1b45a2 | 1925 | return false; |
c2f09c75 | 1926 | |
46d1c23b TG |
1927 | memcpy (raw.segname, seg->segname, 16); |
1928 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1929 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1930 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1931 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1932 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1933 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1934 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1935 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
68ffbac6 | 1936 | |
46d1c23b TG |
1937 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1938 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 1939 | return false; |
1e8a024a | 1940 | |
f1bde64c | 1941 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab | 1942 | if (!bfd_mach_o_write_section_32 (abfd, sec)) |
0a1b45a2 | 1943 | return false; |
1e8a024a | 1944 | |
0a1b45a2 | 1945 | return true; |
116c20d2 NC |
1946 | } |
1947 | ||
0a1b45a2 | 1948 | static bool |
ab273af8 | 1949 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1950 | { |
46d1c23b | 1951 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1952 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1953 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1954 | |
1955 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1956 | ||
f1bde64c TG |
1957 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1958 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
0a1b45a2 | 1959 | return false; |
c2f09c75 | 1960 | |
46d1c23b TG |
1961 | memcpy (raw.segname, seg->segname, 16); |
1962 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1963 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1964 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1965 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1966 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1967 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1968 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1969 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1970 | ||
1971 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1972 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 1973 | return false; |
c2f09c75 | 1974 | |
f1bde64c | 1975 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab | 1976 | if (!bfd_mach_o_write_section_64 (abfd, sec)) |
0a1b45a2 | 1977 | return false; |
c2f09c75 | 1978 | |
0a1b45a2 | 1979 | return true; |
1e8a024a TG |
1980 | } |
1981 | ||
0a1b45a2 | 1982 | static bool |
c9ffd2ea | 1983 | bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym) |
116c20d2 | 1984 | { |
046b007d | 1985 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1986 | unsigned long i; |
c2f09c75 | 1987 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
c2f09c75 TG |
1988 | struct bfd_strtab_hash *strtab; |
1989 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
c9ffd2ea | 1990 | int padlen; |
c2f09c75 TG |
1991 | |
1992 | /* Write the symbols first. */ | |
1993 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) | |
0a1b45a2 | 1994 | return false; |
c2f09c75 | 1995 | |
c2f09c75 TG |
1996 | strtab = _bfd_stringtab_init (); |
1997 | if (strtab == NULL) | |
0a1b45a2 | 1998 | return false; |
116c20d2 | 1999 | |
a4551119 TG |
2000 | if (sym->nsyms > 0) |
2001 | /* Although we don't strictly need to do this, for compatibility with | |
2002 | Darwin system tools, actually output an empty string for the index | |
2003 | 0 entry. */ | |
0a1b45a2 | 2004 | _bfd_stringtab_add (strtab, "", true, false); |
a4551119 | 2005 | |
116c20d2 NC |
2006 | for (i = 0; i < sym->nsyms; i++) |
2007 | { | |
91d6fa6a | 2008 | bfd_size_type str_index; |
92bc0e80 | 2009 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
68ffbac6 | 2010 | |
92bc0e80 | 2011 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 2012 | /* An index of 0 always means the empty string. */ |
07d6d2b8 | 2013 | str_index = 0; |
c2f09c75 | 2014 | else |
07d6d2b8 | 2015 | { |
0a1b45a2 | 2016 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, true, false); |
7f307238 | 2017 | |
07d6d2b8 AM |
2018 | if (str_index == (bfd_size_type) -1) |
2019 | goto err; | |
2020 | } | |
46d1c23b | 2021 | |
c2f09c75 | 2022 | if (wide) |
07d6d2b8 AM |
2023 | { |
2024 | struct mach_o_nlist_64_external raw; | |
2025 | ||
2026 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
2027 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
2028 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
2029 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2030 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
2031 | raw.n_value); | |
2032 | ||
2033 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2034 | goto err; | |
2035 | } | |
c2f09c75 | 2036 | else |
07d6d2b8 AM |
2037 | { |
2038 | struct mach_o_nlist_external raw; | |
116c20d2 | 2039 | |
07d6d2b8 AM |
2040 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
2041 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
2042 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
2043 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2044 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
2045 | raw.n_value); | |
46d1c23b | 2046 | |
07d6d2b8 AM |
2047 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
2048 | goto err; | |
2049 | } | |
116c20d2 | 2050 | } |
c2f09c75 | 2051 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
2052 | sym->stroff = mdata->filelen; |
2053 | mdata->filelen += sym->strsize; | |
116c20d2 | 2054 | |
c9ffd2ea | 2055 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
64d29018 | 2056 | goto err; |
c9ffd2ea | 2057 | |
535b785f | 2058 | if (!_bfd_stringtab_emit (abfd, strtab)) |
c2f09c75 | 2059 | goto err; |
116c20d2 | 2060 | |
c9ffd2ea TG |
2061 | /* Pad string table. */ |
2062 | padlen = bfd_mach_o_pad4 (abfd, sym->strsize); | |
2063 | if (padlen < 0) | |
0a1b45a2 | 2064 | return false; |
c9ffd2ea TG |
2065 | mdata->filelen += padlen; |
2066 | sym->strsize += padlen; | |
116c20d2 | 2067 | |
0a1b45a2 | 2068 | return true; |
116c20d2 | 2069 | |
c2f09c75 TG |
2070 | err: |
2071 | _bfd_stringtab_free (strtab); | |
64d29018 | 2072 | sym->strsize = 0; |
0a1b45a2 | 2073 | return false; |
116c20d2 NC |
2074 | } |
2075 | ||
0a1b45a2 | 2076 | static bool |
c9ffd2ea TG |
2077 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
2078 | { | |
2079 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
2080 | struct mach_o_symtab_command_external raw; | |
2081 | ||
2082 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
2083 | ||
2084 | /* The command. */ | |
2085 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); | |
2086 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
2087 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
2088 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
2089 | ||
2090 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
2091 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 2092 | return false; |
c9ffd2ea | 2093 | |
0a1b45a2 | 2094 | return true; |
c9ffd2ea TG |
2095 | } |
2096 | ||
2097 | /* Count the number of indirect symbols in the image. | |
2098 | Requires that the sections are in their final order. */ | |
2099 | ||
2100 | static unsigned int | |
2101 | bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2102 | { | |
2103 | unsigned int i; | |
2104 | unsigned int nisyms = 0; | |
2105 | ||
2106 | for (i = 0; i < mdata->nsects; ++i) | |
2107 | { | |
2108 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2109 | ||
2110 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2111 | { | |
2112 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2113 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2114 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2115 | nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2116 | break; | |
2117 | default: | |
2118 | break; | |
2119 | } | |
2120 | } | |
2121 | return nisyms; | |
2122 | } | |
2123 | ||
2124 | /* Create the dysymtab. */ | |
2125 | ||
0a1b45a2 | 2126 | static bool |
c9ffd2ea TG |
2127 | bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd) |
2128 | { | |
2129 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2130 | ||
2131 | /* TODO: | |
2132 | We are not going to try and fill these in yet and, moreover, we are | |
2133 | going to bail if they are already set. */ | |
2134 | if (cmd->nmodtab != 0 | |
2135 | || cmd->ntoc != 0 | |
2136 | || cmd->nextrefsyms != 0) | |
2137 | { | |
4eca0228 AM |
2138 | _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet" |
2139 | " implemented for dysymtab commands.")); | |
0a1b45a2 | 2140 | return false; |
c9ffd2ea TG |
2141 | } |
2142 | ||
2143 | cmd->ilocalsym = 0; | |
2144 | ||
2145 | if (bfd_get_symcount (abfd) > 0) | |
2146 | { | |
2147 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2148 | unsigned long i; | |
2149 | ||
2150 | /* Count the number of each kind of symbol. */ | |
2151 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
2152 | { | |
2153 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2154 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
2155 | break; | |
2156 | } | |
2157 | cmd->nlocalsym = i; | |
2158 | cmd->iextdefsym = i; | |
2159 | for (; i < bfd_get_symcount (abfd); ++i) | |
2160 | { | |
2161 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2162 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
2163 | break; | |
2164 | } | |
2165 | cmd->nextdefsym = i - cmd->nlocalsym; | |
2166 | cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym; | |
2167 | cmd->nundefsym = bfd_get_symcount (abfd) | |
2168 | - cmd->nlocalsym | |
2169 | - cmd->nextdefsym; | |
2170 | } | |
2171 | else | |
2172 | { | |
2173 | cmd->nlocalsym = 0; | |
2174 | cmd->iextdefsym = 0; | |
2175 | cmd->nextdefsym = 0; | |
2176 | cmd->iundefsym = 0; | |
2177 | cmd->nundefsym = 0; | |
2178 | } | |
2179 | ||
2180 | cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata); | |
2181 | if (cmd->nindirectsyms > 0) | |
2182 | { | |
2183 | unsigned i; | |
2184 | unsigned n; | |
a4425a57 | 2185 | size_t amt; |
c9ffd2ea TG |
2186 | |
2187 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2188 | cmd->indirectsymoff = mdata->filelen; | |
a4425a57 | 2189 | if (_bfd_mul_overflow (cmd->nindirectsyms, 4, &amt)) |
0a1b45a2 | 2190 | return false; |
a4425a57 AM |
2191 | mdata->filelen += amt; |
2192 | ||
2193 | cmd->indirect_syms = bfd_zalloc (abfd, amt); | |
c9ffd2ea | 2194 | if (cmd->indirect_syms == NULL) |
0a1b45a2 | 2195 | return false; |
c9ffd2ea TG |
2196 | |
2197 | n = 0; | |
2198 | for (i = 0; i < mdata->nsects; ++i) | |
2199 | { | |
2200 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2201 | ||
2202 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2203 | { | |
2204 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2205 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2206 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2207 | { | |
2208 | unsigned j, num; | |
2209 | bfd_mach_o_asymbol **isyms = sec->indirect_syms; | |
2210 | ||
2211 | num = bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2212 | if (isyms == NULL || num == 0) | |
2213 | break; | |
2214 | /* Record the starting index in the reserved1 field. */ | |
2215 | sec->reserved1 = n; | |
2216 | for (j = 0; j < num; j++, n++) | |
2217 | { | |
2218 | if (isyms[j] == NULL) | |
07d6d2b8 | 2219 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL; |
c9ffd2ea TG |
2220 | else if (isyms[j]->symbol.section == bfd_abs_section_ptr |
2221 | && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT)) | |
07d6d2b8 | 2222 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL |
c9ffd2ea TG |
2223 | | BFD_MACH_O_INDIRECT_SYM_ABS; |
2224 | else | |
07d6d2b8 | 2225 | cmd->indirect_syms[n] = isyms[j]->symbol.udata.i; |
c9ffd2ea TG |
2226 | } |
2227 | } | |
2228 | break; | |
2229 | default: | |
2230 | break; | |
2231 | } | |
2232 | } | |
2233 | } | |
2234 | ||
0a1b45a2 | 2235 | return true; |
c9ffd2ea TG |
2236 | } |
2237 | ||
7f307238 IS |
2238 | /* Write a dysymtab command. |
2239 | TODO: Possibly coalesce writes of smaller objects. */ | |
2240 | ||
0a1b45a2 | 2241 | static bool |
7f307238 IS |
2242 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
2243 | { | |
2244 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
2245 | ||
2246 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
2247 | ||
2248 | if (cmd->nmodtab != 0) | |
2249 | { | |
2250 | unsigned int i; | |
2251 | ||
2252 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
0a1b45a2 | 2253 | return false; |
7f307238 IS |
2254 | |
2255 | for (i = 0; i < cmd->nmodtab; i++) | |
2256 | { | |
2257 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
2258 | unsigned int iinit; | |
2259 | unsigned int ninit; | |
2260 | ||
2261 | iinit = module->iinit & 0xffff; | |
2262 | iinit |= ((module->iterm & 0xffff) << 16); | |
2263 | ||
2264 | ninit = module->ninit & 0xffff; | |
2265 | ninit |= ((module->nterm & 0xffff) << 16); | |
2266 | ||
2267 | if (bfd_mach_o_wide_p (abfd)) | |
2268 | { | |
2269 | struct mach_o_dylib_module_64_external w; | |
2270 | ||
2271 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
2272 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
2273 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
2274 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
2275 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
2276 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
2277 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
2278 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
2279 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
2280 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
2281 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
2282 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
2283 | &w.objc_module_info_addr); | |
2284 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2285 | &w.objc_module_info_size); | |
2286 | ||
2287 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
0a1b45a2 | 2288 | return false; |
7f307238 IS |
2289 | } |
2290 | else | |
2291 | { | |
2292 | struct mach_o_dylib_module_external n; | |
2293 | ||
2294 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
2295 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
2296 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
2297 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
2298 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
2299 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
2300 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
2301 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
2302 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
2303 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
2304 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
2305 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
2306 | &n.objc_module_info_addr); | |
2307 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2308 | &n.objc_module_info_size); | |
2309 | ||
2310 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
0a1b45a2 | 2311 | return false; |
7f307238 IS |
2312 | } |
2313 | } | |
2314 | } | |
2315 | ||
2316 | if (cmd->ntoc != 0) | |
2317 | { | |
2318 | unsigned int i; | |
2319 | ||
2320 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
0a1b45a2 | 2321 | return false; |
7f307238 IS |
2322 | |
2323 | for (i = 0; i < cmd->ntoc; i++) | |
2324 | { | |
2325 | struct mach_o_dylib_table_of_contents_external raw; | |
2326 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
2327 | ||
2328 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
2329 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
2330 | ||
2331 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 2332 | return false; |
7f307238 IS |
2333 | } |
2334 | } | |
68ffbac6 | 2335 | |
7f307238 IS |
2336 | if (cmd->nindirectsyms > 0) |
2337 | { | |
2338 | unsigned int i; | |
2339 | ||
2340 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
0a1b45a2 | 2341 | return false; |
7f307238 IS |
2342 | |
2343 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
2344 | { | |
2345 | unsigned char raw[4]; | |
2346 | ||
2347 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
2348 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 2349 | return false; |
68ffbac6 | 2350 | } |
7f307238 IS |
2351 | } |
2352 | ||
2353 | if (cmd->nextrefsyms != 0) | |
2354 | { | |
2355 | unsigned int i; | |
2356 | ||
2357 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
0a1b45a2 | 2358 | return false; |
7f307238 IS |
2359 | |
2360 | for (i = 0; i < cmd->nextrefsyms; i++) | |
2361 | { | |
2362 | unsigned long v; | |
2363 | unsigned char raw[4]; | |
2364 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
2365 | ||
2366 | /* Fields isym and flags are written as bit-fields, thus we need | |
2367 | a specific processing for endianness. */ | |
2368 | ||
2369 | if (bfd_big_endian (abfd)) | |
2370 | { | |
2371 | v = ((ref->isym & 0xffffff) << 8); | |
2372 | v |= ref->flags & 0xff; | |
2373 | } | |
2374 | else | |
2375 | { | |
2376 | v = ref->isym & 0xffffff; | |
2377 | v |= ((ref->flags & 0xff) << 24); | |
2378 | } | |
2379 | ||
2380 | bfd_h_put_32 (abfd, v, raw); | |
2381 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 2382 | return false; |
7f307238 IS |
2383 | } |
2384 | } | |
2385 | ||
2386 | /* The command. */ | |
2387 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
0a1b45a2 | 2388 | return false; |
7f307238 IS |
2389 | else |
2390 | { | |
2391 | struct mach_o_dysymtab_command_external raw; | |
2392 | ||
2393 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
2394 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
2395 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
2396 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
2397 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
2398 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
2399 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
2400 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
2401 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
2402 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
2403 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
2404 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
2405 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
2406 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
2407 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
2408 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
2409 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
2410 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
2411 | ||
2412 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 2413 | return false; |
7f307238 IS |
2414 | } |
2415 | ||
0a1b45a2 | 2416 | return true; |
7f307238 IS |
2417 | } |
2418 | ||
2419 | static unsigned | |
b22161d6 | 2420 | bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s) |
7f307238 | 2421 | { |
b22161d6 | 2422 | unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE; |
68588f95 IS |
2423 | |
2424 | /* Just leave debug symbols where they are (pretend they are local, and | |
2425 | then they will just be sorted on position). */ | |
b22161d6 | 2426 | if (s->n_type & BFD_MACH_O_N_STAB) |
68588f95 IS |
2427 | return 0; |
2428 | ||
7f307238 | 2429 | /* Local (we should never see an undefined local AFAICT). */ |
b22161d6 | 2430 | if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
2431 | return 0; |
2432 | ||
2433 | /* Common symbols look like undefined externs. */ | |
68588f95 | 2434 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
2435 | return 2; |
2436 | ||
b22161d6 | 2437 | /* A defined non-local, non-debug symbol. */ |
7f307238 IS |
2438 | return 1; |
2439 | } | |
2440 | ||
2441 | static int | |
2442 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
2443 | { | |
2444 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
2445 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
2446 | unsigned int soa, sob; | |
2447 | ||
b22161d6 IS |
2448 | soa = bfd_mach_o_primary_symbol_sort_key (sa); |
2449 | sob = bfd_mach_o_primary_symbol_sort_key (sb); | |
7f307238 IS |
2450 | if (soa < sob) |
2451 | return -1; | |
2452 | ||
2453 | if (soa > sob) | |
2454 | return 1; | |
2455 | ||
68588f95 | 2456 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
2457 | if (soa == 0) |
2458 | { | |
2459 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
07d6d2b8 | 2460 | return -1; |
7f307238 | 2461 | if (sa->symbol.udata.i > sb->symbol.udata.i) |
07d6d2b8 | 2462 | return 1; |
b22161d6 IS |
2463 | |
2464 | /* This is probably an error. */ | |
7f307238 IS |
2465 | return 0; |
2466 | } | |
2467 | ||
b22161d6 IS |
2468 | /* The second sort key is name. */ |
2469 | return strcmp (sa->symbol.name, sb->symbol.name); | |
7f307238 IS |
2470 | } |
2471 | ||
2472 | /* Process the symbols. | |
2473 | ||
2474 | This should be OK for single-module files - but it is not likely to work | |
2475 | for multi-module shared libraries. | |
2476 | ||
2477 | (a) If the application has not filled in the relevant mach-o fields, make | |
2478 | an estimate. | |
2479 | ||
2480 | (b) Order them, like this: | |
2481 | ( i) local. | |
2482 | (unsorted) | |
2483 | ( ii) external defined | |
2484 | (by name) | |
b22161d6 | 2485 | (iii) external undefined/common |
7f307238 IS |
2486 | (by name) |
2487 | ( iv) common | |
2488 | (by name) | |
b22161d6 | 2489 | */ |
92bc0e80 | 2490 | |
0a1b45a2 | 2491 | static bool |
b22161d6 | 2492 | bfd_mach_o_mangle_symbols (bfd *abfd) |
92bc0e80 TG |
2493 | { |
2494 | unsigned long i; | |
2495 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2496 | ||
7f307238 | 2497 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
0a1b45a2 | 2498 | return true; |
7f307238 | 2499 | |
92bc0e80 TG |
2500 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
2501 | { | |
2502 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2503 | ||
b22161d6 IS |
2504 | /* We use this value, which is out-of-range as a symbol index, to signal |
2505 | that the mach-o-specific data are not filled in and need to be created | |
2506 | from the bfd values. It is much preferable for the application to do | |
2507 | this, since more meaningful diagnostics can be made that way. */ | |
2508 | ||
2509 | if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET) | |
07d6d2b8 AM |
2510 | { |
2511 | /* No symbol information has been set - therefore determine | |
2512 | it from the bfd symbol flags/info. */ | |
2513 | if (s->symbol.section == bfd_abs_section_ptr) | |
2514 | s->n_type = BFD_MACH_O_N_ABS; | |
2515 | else if (s->symbol.section == bfd_und_section_ptr) | |
2516 | { | |
2517 | s->n_type = BFD_MACH_O_N_UNDF; | |
2518 | if (s->symbol.flags & BSF_WEAK) | |
2519 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
2520 | /* mach-o automatically makes undefined symbols extern. */ | |
7f307238 | 2521 | s->n_type |= BFD_MACH_O_N_EXT; |
b22161d6 | 2522 | s->symbol.flags |= BSF_GLOBAL; |
07d6d2b8 AM |
2523 | } |
2524 | else if (s->symbol.section == bfd_com_section_ptr) | |
b22161d6 | 2525 | { |
07d6d2b8 AM |
2526 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; |
2527 | s->symbol.flags |= BSF_GLOBAL; | |
2528 | } | |
2529 | else | |
2530 | s->n_type = BFD_MACH_O_N_SECT; | |
07d6d2b8 | 2531 | } |
92bc0e80 | 2532 | |
ae19acf3 | 2533 | /* Update external symbol bit in case objcopy changed it. */ |
2534 | if (s->symbol.flags & BSF_GLOBAL) | |
2535 | s->n_type |= BFD_MACH_O_N_EXT; | |
2536 | else | |
2537 | s->n_type &= ~BFD_MACH_O_N_EXT; | |
2538 | ||
7f307238 | 2539 | /* Put the section index in, where required. */ |
68588f95 | 2540 | if ((s->symbol.section != bfd_abs_section_ptr |
07d6d2b8 AM |
2541 | && s->symbol.section != bfd_und_section_ptr |
2542 | && s->symbol.section != bfd_com_section_ptr) | |
2543 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 | |
2544 | && s->symbol.name == NULL)) | |
707e555b | 2545 | s->n_sect = s->symbol.section->output_section->target_index; |
92bc0e80 | 2546 | |
b22161d6 IS |
2547 | /* Number to preserve order for local and debug syms. */ |
2548 | s->symbol.udata.i = i; | |
7f307238 IS |
2549 | } |
2550 | ||
b22161d6 IS |
2551 | /* Sort the symbols. */ |
2552 | qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd), | |
2553 | sizeof (asymbol *), bfd_mach_o_cf_symbols); | |
7f307238 | 2554 | |
b22161d6 IS |
2555 | for (i = 0; i < bfd_get_symcount (abfd); ++i) |
2556 | { | |
2557 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2558 | s->symbol.udata.i = i; /* renumber. */ | |
7f307238 IS |
2559 | } |
2560 | ||
0a1b45a2 | 2561 | return true; |
7f307238 IS |
2562 | } |
2563 | ||
2564 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
2565 | Fill in the section number and other mach-o-specific data. */ | |
2566 | ||
0a1b45a2 | 2567 | static bool |
7f307238 IS |
2568 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) |
2569 | { | |
2570 | asection *sec; | |
2571 | unsigned target_index; | |
2572 | unsigned nsect; | |
1f4361a7 | 2573 | size_t amt; |
7f307238 IS |
2574 | |
2575 | nsect = bfd_count_sections (abfd); | |
68ffbac6 | 2576 | |
7f307238 IS |
2577 | /* Don't do it if it's already set - assume the application knows what it's |
2578 | doing. */ | |
2579 | if (mdata->nsects == nsect | |
2580 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
0a1b45a2 | 2581 | return true; |
7f307238 | 2582 | |
a1165289 NC |
2583 | /* We need to check that this can be done... */ |
2584 | if (nsect > 255) | |
2585 | { | |
4eca0228 AM |
2586 | _bfd_error_handler (_("mach-o: there are too many sections (%u)" |
2587 | " maximum is 255,\n"), nsect); | |
0a1b45a2 | 2588 | return false; |
a1165289 NC |
2589 | } |
2590 | ||
7f307238 | 2591 | mdata->nsects = nsect; |
a4425a57 | 2592 | amt = mdata->nsects * sizeof (bfd_mach_o_section *); |
1f4361a7 | 2593 | mdata->sections = bfd_alloc (abfd, amt); |
7f307238 | 2594 | if (mdata->sections == NULL) |
0a1b45a2 | 2595 | return false; |
7f307238 | 2596 | |
7f307238 | 2597 | /* Create Mach-O sections. |
68ffbac6 | 2598 | Section type, attribute and align should have been set when the |
7f307238 IS |
2599 | section was created - either read in or specified. */ |
2600 | target_index = 0; | |
2601 | for (sec = abfd->sections; sec; sec = sec->next) | |
2602 | { | |
fd361982 | 2603 | unsigned bfd_align = bfd_section_alignment (sec); |
7f307238 IS |
2604 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); |
2605 | ||
2606 | mdata->sections[target_index] = msect; | |
2607 | ||
fd361982 AM |
2608 | msect->addr = bfd_section_vma (sec); |
2609 | msect->size = bfd_section_size (sec); | |
7f307238 | 2610 | |
68ffbac6 | 2611 | /* Use the largest alignment set, in case it was bumped after the |
7f307238 IS |
2612 | section was created. */ |
2613 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
2614 | ||
2615 | msect->offset = 0; | |
2616 | sec->target_index = ++target_index; | |
92bc0e80 | 2617 | } |
7f307238 | 2618 | |
0a1b45a2 | 2619 | return true; |
92bc0e80 TG |
2620 | } |
2621 | ||
0a1b45a2 | 2622 | bool |
116c20d2 | 2623 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b | 2624 | { |
046b007d | 2625 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
2626 | bfd_mach_o_load_command *cmd; |
2627 | bfd_mach_o_symtab_command *symtab = NULL; | |
2628 | bfd_mach_o_dysymtab_command *dysymtab = NULL; | |
2629 | bfd_mach_o_segment_command *linkedit = NULL; | |
3af9a47b | 2630 | |
7f307238 | 2631 | /* Make the commands, if not already present. */ |
c9ffd2ea | 2632 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
0a1b45a2 AM |
2633 | return false; |
2634 | abfd->output_has_begun = true; | |
92bc0e80 | 2635 | |
c9ffd2ea | 2636 | /* Write the header. */ |
154a1ee5 | 2637 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
0a1b45a2 | 2638 | return false; |
3af9a47b | 2639 | |
c9ffd2ea TG |
2640 | /* First pass: allocate the linkedit segment. */ |
2641 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
2642 | switch (cmd->type) | |
2643 | { | |
2644 | case BFD_MACH_O_LC_SEGMENT_64: | |
2645 | case BFD_MACH_O_LC_SEGMENT: | |
2646 | if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0) | |
2647 | linkedit = &cmd->command.segment; | |
2648 | break; | |
2649 | case BFD_MACH_O_LC_SYMTAB: | |
2650 | symtab = &cmd->command.symtab; | |
2651 | break; | |
2652 | case BFD_MACH_O_LC_DYSYMTAB: | |
2653 | dysymtab = &cmd->command.dysymtab; | |
2654 | break; | |
2655 | case BFD_MACH_O_LC_DYLD_INFO: | |
2656 | { | |
2657 | bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info; | |
2658 | ||
2659 | if (di->rebase_size != 0) | |
2660 | { | |
2661 | di->rebase_off = mdata->filelen; | |
2662 | mdata->filelen += di->rebase_size; | |
2663 | } | |
2664 | if (di->bind_size != 0) | |
2665 | { | |
2666 | di->bind_off = mdata->filelen; | |
2667 | mdata->filelen += di->bind_size; | |
2668 | } | |
2669 | if (di->weak_bind_size != 0) | |
2670 | { | |
2671 | di->weak_bind_off = mdata->filelen; | |
2672 | mdata->filelen += di->weak_bind_size; | |
2673 | } | |
2674 | if (di->lazy_bind_size != 0) | |
2675 | { | |
2676 | di->lazy_bind_off = mdata->filelen; | |
2677 | mdata->filelen += di->lazy_bind_size; | |
2678 | } | |
2679 | if (di->export_size != 0) | |
2680 | { | |
2681 | di->export_off = mdata->filelen; | |
2682 | mdata->filelen += di->export_size; | |
2683 | } | |
2684 | } | |
2685 | break; | |
2686 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2687 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2688 | case BFD_MACH_O_LC_MAIN: | |
2689 | /* Nothing to do. */ | |
2690 | break; | |
2691 | default: | |
4eca0228 | 2692 | _bfd_error_handler |
d42c267e AM |
2693 | (_("unable to allocate data for load command %#x"), |
2694 | cmd->type); | |
c9ffd2ea TG |
2695 | break; |
2696 | } | |
2697 | ||
2698 | /* Specially handle symtab and dysymtab. */ | |
2699 | ||
2700 | /* Pre-allocate the symbol table (but not the string table). The reason | |
2701 | is that the dysymtab is after the symbol table but before the string | |
2702 | table (required by the native strip tool). */ | |
2703 | if (symtab != NULL) | |
2704 | { | |
2705 | unsigned int symlen; | |
2706 | unsigned int wide = bfd_mach_o_wide_p (abfd); | |
2707 | ||
2708 | symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
2709 | ||
2710 | /* Align for symbols. */ | |
2711 | mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2); | |
2712 | symtab->symoff = mdata->filelen; | |
2713 | ||
2714 | symtab->nsyms = bfd_get_symcount (abfd); | |
2715 | mdata->filelen += symtab->nsyms * symlen; | |
2716 | } | |
2717 | ||
2718 | /* Build the dysymtab. */ | |
2719 | if (dysymtab != NULL) | |
2720 | if (!bfd_mach_o_build_dysymtab (abfd, dysymtab)) | |
0a1b45a2 | 2721 | return false; |
c9ffd2ea TG |
2722 | |
2723 | /* Write symtab and strtab. */ | |
2724 | if (symtab != NULL) | |
2725 | if (!bfd_mach_o_write_symtab_content (abfd, symtab)) | |
0a1b45a2 | 2726 | return false; |
c9ffd2ea TG |
2727 | |
2728 | /* Adjust linkedit size. */ | |
2729 | if (linkedit != NULL) | |
2730 | { | |
2731 | /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */ | |
2732 | ||
2733 | linkedit->vmsize = mdata->filelen - linkedit->fileoff; | |
2734 | /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */ | |
2735 | linkedit->filesize = mdata->filelen - linkedit->fileoff; | |
2736 | ||
2737 | linkedit->initprot = BFD_MACH_O_PROT_READ; | |
2738 | linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2739 | | BFD_MACH_O_PROT_EXECUTE; | |
2740 | } | |
2741 | ||
2742 | /* Second pass: write commands. */ | |
2743 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
3af9a47b | 2744 | { |
46d1c23b | 2745 | struct mach_o_load_command_external raw; |
3af9a47b NC |
2746 | unsigned long typeflag; |
2747 | ||
c9ffd2ea | 2748 | typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 2749 | |
46d1c23b | 2750 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
c9ffd2ea | 2751 | bfd_h_put_32 (abfd, cmd->len, raw.cmdsize); |
3af9a47b | 2752 | |
c9ffd2ea | 2753 | if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0 |
07d6d2b8 | 2754 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
0a1b45a2 | 2755 | return false; |
3af9a47b | 2756 | |
c9ffd2ea | 2757 | switch (cmd->type) |
3af9a47b NC |
2758 | { |
2759 | case BFD_MACH_O_LC_SEGMENT: | |
c9ffd2ea | 2760 | if (!bfd_mach_o_write_segment_32 (abfd, cmd)) |
0a1b45a2 | 2761 | return false; |
1e8a024a TG |
2762 | break; |
2763 | case BFD_MACH_O_LC_SEGMENT_64: | |
c9ffd2ea | 2764 | if (!bfd_mach_o_write_segment_64 (abfd, cmd)) |
0a1b45a2 | 2765 | return false; |
3af9a47b NC |
2766 | break; |
2767 | case BFD_MACH_O_LC_SYMTAB: | |
c9ffd2ea | 2768 | if (!bfd_mach_o_write_symtab (abfd, cmd)) |
0a1b45a2 | 2769 | return false; |
3af9a47b | 2770 | break; |
7f307238 | 2771 | case BFD_MACH_O_LC_DYSYMTAB: |
c9ffd2ea | 2772 | if (!bfd_mach_o_write_dysymtab (abfd, cmd)) |
0a1b45a2 | 2773 | return false; |
7f307238 | 2774 | break; |
3af9a47b NC |
2775 | case BFD_MACH_O_LC_THREAD: |
2776 | case BFD_MACH_O_LC_UNIXTHREAD: | |
c9ffd2ea | 2777 | if (!bfd_mach_o_write_thread (abfd, cmd)) |
0a1b45a2 | 2778 | return false; |
3af9a47b | 2779 | break; |
3af9a47b | 2780 | case BFD_MACH_O_LC_LOAD_DYLIB: |
c9ffd2ea | 2781 | if (!bfd_mach_o_write_dylib (abfd, cmd)) |
0a1b45a2 | 2782 | return false; |
c9ffd2ea | 2783 | break; |
3af9a47b | 2784 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
c9ffd2ea | 2785 | if (!bfd_mach_o_write_dylinker (abfd, cmd)) |
0a1b45a2 | 2786 | return false; |
c9ffd2ea TG |
2787 | break; |
2788 | case BFD_MACH_O_LC_MAIN: | |
2789 | if (!bfd_mach_o_write_main (abfd, cmd)) | |
0a1b45a2 | 2790 | return false; |
c9ffd2ea TG |
2791 | break; |
2792 | case BFD_MACH_O_LC_DYLD_INFO: | |
2793 | if (!bfd_mach_o_write_dyld_info (abfd, cmd)) | |
0a1b45a2 | 2794 | return false; |
3af9a47b NC |
2795 | break; |
2796 | default: | |
4eca0228 | 2797 | _bfd_error_handler |
d42c267e AM |
2798 | (_("unable to write unknown load command %#x"), |
2799 | cmd->type); | |
0a1b45a2 | 2800 | return false; |
3af9a47b NC |
2801 | } |
2802 | } | |
2803 | ||
0a1b45a2 | 2804 | return true; |
3af9a47b NC |
2805 | } |
2806 | ||
f1bde64c TG |
2807 | static void |
2808 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
07d6d2b8 | 2809 | bfd_mach_o_section *s) |
f1bde64c | 2810 | { |
f1bde64c TG |
2811 | if (seg->sect_head == NULL) |
2812 | seg->sect_head = s; | |
2813 | else | |
2814 | seg->sect_tail->next = s; | |
2815 | seg->sect_tail = s; | |
2816 | } | |
2817 | ||
2818 | /* Create section Mach-O flags from BFD flags. */ | |
2819 | ||
2820 | static void | |
3cc27770 TG |
2821 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, |
2822 | asection *sec) | |
f1bde64c TG |
2823 | { |
2824 | flagword bfd_flags; | |
2825 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2826 | ||
2827 | /* Create default flags. */ | |
fd361982 | 2828 | bfd_flags = bfd_section_flags (sec); |
f1bde64c TG |
2829 | if ((bfd_flags & SEC_CODE) == SEC_CODE) |
2830 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2831 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2832 | | BFD_MACH_O_S_REGULAR; | |
2833 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2834 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2835 | else if (bfd_flags & SEC_DEBUGGING) | |
2836 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2837 | else | |
2838 | s->flags = BFD_MACH_O_S_REGULAR; | |
2839 | } | |
2840 | ||
0a1b45a2 | 2841 | static bool |
c9ffd2ea | 2842 | bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) |
7f307238 | 2843 | { |
c9ffd2ea TG |
2844 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2845 | unsigned int i, j; | |
7f307238 | 2846 | |
7f307238 | 2847 | seg->vmaddr = 0; |
7f307238 | 2848 | seg->fileoff = mdata->filelen; |
c9ffd2ea TG |
2849 | seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE |
2850 | | BFD_MACH_O_PROT_EXECUTE; | |
2851 | seg->maxprot = seg->initprot; | |
7f307238 | 2852 | |
68ffbac6 | 2853 | /* Append sections to the segment. |
09903f4b IS |
2854 | |
2855 | This is a little tedious, we have to honor the need to account zerofill | |
2856 | sections after all the rest. This forces us to do the calculation of | |
68ffbac6 | 2857 | total vmsize in three passes so that any alignment increments are |
09903f4b | 2858 | properly accounted. */ |
7f307238 IS |
2859 | for (i = 0; i < mdata->nsects; ++i) |
2860 | { | |
2861 | bfd_mach_o_section *s = mdata->sections[i]; | |
2862 | asection *sec = s->bfdsection; | |
2863 | ||
09903f4b IS |
2864 | /* Although we account for zerofill section sizes in vm order, they are |
2865 | placed in the file in source sequence. */ | |
c9ffd2ea | 2866 | bfd_mach_o_append_section_to_segment (seg, s); |
e5081f2f | 2867 | s->offset = 0; |
68ffbac6 | 2868 | |
c9ffd2ea TG |
2869 | /* Zerofill sections have zero file size & offset, the only content |
2870 | written to the file is the symbols. */ | |
e5081f2f | 2871 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL |
07d6d2b8 | 2872 | || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2873 | == BFD_MACH_O_S_GB_ZEROFILL)) |
07d6d2b8 | 2874 | continue; |
e5081f2f | 2875 | |
c9ffd2ea TG |
2876 | /* The Darwin system tools (in MH_OBJECT files, at least) always account |
2877 | sections, even those with zero size. */ | |
e5081f2f | 2878 | if (s->size > 0) |
c9ffd2ea | 2879 | { |
09903f4b IS |
2880 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); |
2881 | seg->vmsize += s->size; | |
2882 | ||
c9ffd2ea TG |
2883 | /* MH_OBJECT files have unaligned content. */ |
2884 | if (1) | |
2885 | { | |
2886 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
07d6d2b8 AM |
2887 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2888 | } | |
09903f4b IS |
2889 | seg->filesize += s->size; |
2890 | ||
c9ffd2ea TG |
2891 | /* The system tools write even zero-sized sections with an offset |
2892 | field set to the current file position. */ | |
07d6d2b8 | 2893 | s->offset = mdata->filelen; |
c9ffd2ea | 2894 | } |
7f307238 IS |
2895 | |
2896 | sec->filepos = s->offset; | |
7f307238 IS |
2897 | mdata->filelen += s->size; |
2898 | } | |
2899 | ||
3cc27770 | 2900 | /* Now pass through again, for zerofill, only now we just update the |
c9ffd2ea TG |
2901 | vmsize, and then for zerofill_GB. */ |
2902 | for (j = 0; j < 2; j++) | |
09903f4b | 2903 | { |
c9ffd2ea | 2904 | unsigned int stype; |
68ffbac6 | 2905 | |
c9ffd2ea TG |
2906 | if (j == 0) |
2907 | stype = BFD_MACH_O_S_ZEROFILL; | |
2908 | else | |
2909 | stype = BFD_MACH_O_S_GB_ZEROFILL; | |
09903f4b | 2910 | |
c9ffd2ea TG |
2911 | for (i = 0; i < mdata->nsects; ++i) |
2912 | { | |
2913 | bfd_mach_o_section *s = mdata->sections[i]; | |
2914 | ||
2915 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype) | |
2916 | continue; | |
2917 | ||
2918 | if (s->size > 0) | |
2919 | { | |
2920 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2921 | seg->vmsize += s->size; | |
2922 | } | |
09903f4b IS |
2923 | } |
2924 | } | |
bb76d940 | 2925 | |
09903f4b | 2926 | /* Allocate space for the relocations. */ |
707e555b | 2927 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); |
bb76d940 IS |
2928 | |
2929 | for (i = 0; i < mdata->nsects; ++i) | |
2930 | { | |
2931 | bfd_mach_o_section *ms = mdata->sections[i]; | |
2932 | asection *sec = ms->bfdsection; | |
68ffbac6 | 2933 | |
c9ffd2ea TG |
2934 | ms->nreloc = sec->reloc_count; |
2935 | if (ms->nreloc == 0) | |
07d6d2b8 | 2936 | { |
c9ffd2ea | 2937 | /* Clear nreloc and reloff if there is no relocs. */ |
bb76d940 IS |
2938 | ms->reloff = 0; |
2939 | continue; | |
07d6d2b8 | 2940 | } |
bb76d940 IS |
2941 | sec->rel_filepos = mdata->filelen; |
2942 | ms->reloff = sec->rel_filepos; | |
2943 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
2944 | } | |
7f307238 | 2945 | |
0a1b45a2 | 2946 | return true; |
7f307238 IS |
2947 | } |
2948 | ||
0a1b45a2 | 2949 | static bool |
c9ffd2ea | 2950 | bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) |
50d10658 | 2951 | { |
c9ffd2ea | 2952 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
50d10658 | 2953 | unsigned int i; |
c9ffd2ea TG |
2954 | bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; |
2955 | bfd_vma vma; | |
2956 | bfd_mach_o_section *s; | |
2957 | ||
2958 | seg->vmsize = 0; | |
50d10658 | 2959 | |
c9ffd2ea TG |
2960 | seg->fileoff = mdata->filelen; |
2961 | seg->maxprot = 0; | |
2962 | seg->initprot = 0; | |
2963 | seg->flags = 0; | |
2964 | ||
2965 | /* Append sections to the segment. We assume they are properly ordered | |
2966 | by vma (but we check that). */ | |
2967 | vma = 0; | |
50d10658 IS |
2968 | for (i = 0; i < mdata->nsects; ++i) |
2969 | { | |
c9ffd2ea | 2970 | s = mdata->sections[i]; |
50d10658 | 2971 | |
c9ffd2ea TG |
2972 | /* Consider only sections for this segment. */ |
2973 | if (strcmp (seg->segname, s->segname) != 0) | |
2974 | continue; | |
50d10658 | 2975 | |
c9ffd2ea | 2976 | bfd_mach_o_append_section_to_segment (seg, s); |
7f307238 | 2977 | |
86eafac0 NC |
2978 | if (s->addr < vma) |
2979 | { | |
4eca0228 | 2980 | _bfd_error_handler |
695344c0 | 2981 | /* xgettext:c-format */ |
2dcf00ce AM |
2982 | (_("section address (%#" PRIx64 ") " |
2983 | "below start of segment (%#" PRIx64 ")"), | |
2984 | (uint64_t) s->addr, (uint64_t) vma); | |
0a1b45a2 | 2985 | return false; |
86eafac0 NC |
2986 | } |
2987 | ||
c9ffd2ea | 2988 | vma = s->addr + s->size; |
7f307238 IS |
2989 | } |
2990 | ||
c9ffd2ea TG |
2991 | /* Set segment file offset: make it page aligned. */ |
2992 | vma = seg->sect_head->addr; | |
2993 | seg->vmaddr = vma & ~pagemask; | |
2994 | if ((mdata->filelen & pagemask) > (vma & pagemask)) | |
2995 | mdata->filelen += pagemask + 1; | |
2996 | seg->fileoff = mdata->filelen & ~pagemask; | |
2997 | mdata->filelen = seg->fileoff + (vma & pagemask); | |
7f307238 | 2998 | |
c9ffd2ea TG |
2999 | /* Set section file offset. */ |
3000 | for (s = seg->sect_head; s != NULL; s = s->next) | |
7f307238 | 3001 | { |
c9ffd2ea | 3002 | asection *sec = s->bfdsection; |
fd361982 | 3003 | flagword flags = bfd_section_flags (sec); |
b22161d6 | 3004 | |
c9ffd2ea TG |
3005 | /* Adjust segment size. */ |
3006 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
3007 | seg->vmsize += s->size; | |
3008 | ||
3009 | /* File offset and length. */ | |
3010 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
3011 | ||
3012 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL | |
07d6d2b8 | 3013 | && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 3014 | != BFD_MACH_O_S_GB_ZEROFILL)) |
b22161d6 | 3015 | { |
c9ffd2ea TG |
3016 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
3017 | ||
3018 | s->offset = mdata->filelen; | |
3019 | s->bfdsection->filepos = s->offset; | |
3020 | ||
3021 | seg->filesize += s->size; | |
3022 | mdata->filelen += s->size; | |
b22161d6 | 3023 | } |
c9ffd2ea | 3024 | else |
b22161d6 | 3025 | { |
c9ffd2ea TG |
3026 | s->offset = 0; |
3027 | s->bfdsection->filepos = 0; | |
3028 | } | |
3029 | ||
3030 | /* Set protection. */ | |
3031 | if (flags & SEC_LOAD) | |
3032 | { | |
3033 | if (flags & SEC_CODE) | |
3034 | seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE; | |
3035 | if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA) | |
3036 | seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ; | |
b22161d6 | 3037 | } |
c9ffd2ea TG |
3038 | |
3039 | /* Relocs shouldn't appear in non-object files. */ | |
3040 | if (s->bfdsection->reloc_count != 0) | |
0a1b45a2 | 3041 | return false; |
b22161d6 | 3042 | } |
c9ffd2ea TG |
3043 | |
3044 | /* Set maxprot. */ | |
3045 | if (seg->initprot != 0) | |
3046 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
3047 | | BFD_MACH_O_PROT_EXECUTE; | |
b22161d6 | 3048 | else |
c9ffd2ea | 3049 | seg->maxprot = 0; |
b22161d6 | 3050 | |
c9ffd2ea TG |
3051 | /* Round segment size (and file size). */ |
3052 | seg->vmsize = (seg->vmsize + pagemask) & ~pagemask; | |
3053 | seg->filesize = (seg->filesize + pagemask) & ~pagemask; | |
3054 | mdata->filelen = (mdata->filelen + pagemask) & ~pagemask; | |
7f307238 | 3055 | |
0a1b45a2 | 3056 | return true; |
c9ffd2ea | 3057 | } |
68ffbac6 | 3058 | |
c9ffd2ea TG |
3059 | /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds |
3060 | fields in header. */ | |
68ffbac6 | 3061 | |
0a1b45a2 | 3062 | static bool |
c9ffd2ea TG |
3063 | bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata) |
3064 | { | |
3065 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3066 | unsigned int hdrlen; | |
3067 | ufile_ptr offset; | |
3068 | bfd_mach_o_load_command *cmd; | |
3069 | unsigned int align; | |
0a1b45a2 | 3070 | bool ret = true; |
c9ffd2ea TG |
3071 | |
3072 | hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; | |
3073 | align = wide ? 8 - 1 : 4 - 1; | |
3074 | offset = hdrlen; | |
3075 | mdata->header.ncmds = 0; | |
50d10658 | 3076 | |
c9ffd2ea TG |
3077 | for (cmd = mdata->first_command; cmd; cmd = cmd->next) |
3078 | { | |
3079 | mdata->header.ncmds++; | |
3080 | cmd->offset = offset; | |
68ffbac6 | 3081 | |
c9ffd2ea TG |
3082 | switch (cmd->type) |
3083 | { | |
3084 | case BFD_MACH_O_LC_SEGMENT_64: | |
3085 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
3086 | + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects; | |
3087 | break; | |
3088 | case BFD_MACH_O_LC_SEGMENT: | |
3089 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
3090 | + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects; | |
3091 | break; | |
3092 | case BFD_MACH_O_LC_SYMTAB: | |
3093 | cmd->len = sizeof (struct mach_o_symtab_command_external) | |
3094 | + BFD_MACH_O_LC_SIZE; | |
3095 | break; | |
3096 | case BFD_MACH_O_LC_DYSYMTAB: | |
3097 | cmd->len = sizeof (struct mach_o_dysymtab_command_external) | |
3098 | + BFD_MACH_O_LC_SIZE; | |
3099 | break; | |
3100 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
3101 | cmd->len = sizeof (struct mach_o_dylib_command_external) | |
3102 | + BFD_MACH_O_LC_SIZE; | |
3103 | cmd->command.dylib.name_offset = cmd->len; | |
3104 | cmd->len += strlen (cmd->command.dylib.name_str); | |
3105 | cmd->len = (cmd->len + align) & ~align; | |
3106 | break; | |
3107 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
3108 | cmd->len = sizeof (struct mach_o_str_command_external) | |
3109 | + BFD_MACH_O_LC_SIZE; | |
3110 | cmd->command.dylinker.name_offset = cmd->len; | |
3111 | cmd->len += strlen (cmd->command.dylinker.name_str); | |
3112 | cmd->len = (cmd->len + align) & ~align; | |
3113 | break; | |
3114 | case BFD_MACH_O_LC_MAIN: | |
3115 | cmd->len = sizeof (struct mach_o_entry_point_command_external) | |
3116 | + BFD_MACH_O_LC_SIZE; | |
3117 | break; | |
3118 | case BFD_MACH_O_LC_DYLD_INFO: | |
3119 | cmd->len = sizeof (struct mach_o_dyld_info_command_external) | |
3120 | + BFD_MACH_O_LC_SIZE; | |
3121 | break; | |
3122 | default: | |
4eca0228 | 3123 | _bfd_error_handler |
d42c267e AM |
3124 | (_("unable to layout unknown load command %#x"), |
3125 | cmd->type); | |
0a1b45a2 | 3126 | ret = false; |
c9ffd2ea | 3127 | break; |
7f307238 | 3128 | } |
c9ffd2ea TG |
3129 | |
3130 | BFD_ASSERT (cmd->len % (align + 1) == 0); | |
3131 | offset += cmd->len; | |
7f307238 | 3132 | } |
c9ffd2ea TG |
3133 | mdata->header.sizeofcmds = offset - hdrlen; |
3134 | mdata->filelen = offset; | |
86eafac0 NC |
3135 | |
3136 | return ret; | |
c9ffd2ea | 3137 | } |
7f307238 | 3138 | |
c9ffd2ea TG |
3139 | /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a |
3140 | segment. */ | |
3141 | ||
3142 | static void | |
3143 | bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata, | |
3144 | bfd_mach_o_load_command *cmd, | |
3145 | const char *segname, unsigned int nbr_sect) | |
3146 | { | |
3147 | bfd_mach_o_segment_command *seg = &cmd->command.segment; | |
3148 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3149 | ||
3150 | /* Init segment command. */ | |
3151 | cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT; | |
0a1b45a2 | 3152 | cmd->type_required = false; |
c9ffd2ea TG |
3153 | |
3154 | strcpy (seg->segname, segname); | |
3155 | seg->nsects = nbr_sect; | |
3156 | ||
3157 | seg->vmaddr = 0; | |
3158 | seg->vmsize = 0; | |
3159 | ||
3160 | seg->fileoff = 0; | |
3161 | seg->filesize = 0; | |
3162 | seg->maxprot = 0; | |
3163 | seg->initprot = 0; | |
3164 | seg->flags = 0; | |
3165 | seg->sect_head = NULL; | |
3166 | seg->sect_tail = NULL; | |
7f307238 IS |
3167 | } |
3168 | ||
3169 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
3170 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
3171 | and copy functionality. */ | |
154a1ee5 | 3172 | |
0a1b45a2 | 3173 | bool |
154a1ee5 TG |
3174 | bfd_mach_o_build_commands (bfd *abfd) |
3175 | { | |
046b007d | 3176 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bbd56171 | 3177 | unsigned wide = mach_o_wide_p (&mdata->header); |
c9ffd2ea TG |
3178 | unsigned int nbr_segcmd = 0; |
3179 | bfd_mach_o_load_command *commands; | |
3180 | unsigned int nbr_commands; | |
bbd56171 IS |
3181 | int symtab_idx = -1; |
3182 | int dysymtab_idx = -1; | |
c9ffd2ea TG |
3183 | int main_idx = -1; |
3184 | unsigned int i; | |
154a1ee5 | 3185 | |
c9ffd2ea TG |
3186 | /* Return now if already built. */ |
3187 | if (mdata->header.ncmds != 0) | |
0a1b45a2 | 3188 | return true; |
154a1ee5 | 3189 | |
7f307238 | 3190 | /* Fill in the file type, if not already set. */ |
7f307238 | 3191 | if (mdata->header.filetype == 0) |
154a1ee5 | 3192 | { |
7f307238 | 3193 | if (abfd->flags & EXEC_P) |
07d6d2b8 | 3194 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; |
7f307238 | 3195 | else if (abfd->flags & DYNAMIC) |
07d6d2b8 | 3196 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; |
7f307238 | 3197 | else |
07d6d2b8 | 3198 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; |
154a1ee5 | 3199 | } |
7f307238 IS |
3200 | |
3201 | /* If hasn't already been done, flatten sections list, and sort | |
3202 | if/when required. Must be done before the symbol table is adjusted, | |
3203 | since that depends on properly numbered sections. */ | |
3204 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
3205 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
0a1b45a2 | 3206 | return false; |
7f307238 IS |
3207 | |
3208 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
3209 | partition out any indirect symbols. */ | |
b22161d6 | 3210 | if (!bfd_mach_o_mangle_symbols (abfd)) |
0a1b45a2 | 3211 | return false; |
7f307238 | 3212 | |
c9ffd2ea TG |
3213 | /* Segment commands. */ |
3214 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) | |
3215 | { | |
3216 | /* Only one segment for all the sections. But the segment is | |
3217 | optional if there is no sections. */ | |
3218 | nbr_segcmd = (mdata->nsects > 0) ? 1 : 0; | |
3219 | } | |
3220 | else | |
3221 | { | |
3222 | bfd_mach_o_section *prev_sect = NULL; | |
bbd56171 | 3223 | |
c9ffd2ea TG |
3224 | /* One pagezero segment and one linkedit segment. */ |
3225 | nbr_segcmd = 2; | |
bbd56171 | 3226 | |
c9ffd2ea TG |
3227 | /* Create one segment for associated segment name in sections. |
3228 | Assume that sections with the same segment name are consecutive. */ | |
3229 | for (i = 0; i < mdata->nsects; i++) | |
3230 | { | |
3231 | bfd_mach_o_section *this_sect = mdata->sections[i]; | |
bbd56171 | 3232 | |
c9ffd2ea TG |
3233 | if (prev_sect == NULL |
3234 | || strcmp (prev_sect->segname, this_sect->segname) != 0) | |
3235 | { | |
3236 | nbr_segcmd++; | |
3237 | prev_sect = this_sect; | |
3238 | } | |
3239 | } | |
154a1ee5 | 3240 | } |
154a1ee5 | 3241 | |
c9ffd2ea TG |
3242 | nbr_commands = nbr_segcmd; |
3243 | ||
3244 | /* One command for the symbol table (only if there are symbols. */ | |
7f307238 | 3245 | if (bfd_get_symcount (abfd) > 0) |
c9ffd2ea | 3246 | symtab_idx = nbr_commands++; |
c2f09c75 | 3247 | |
bbd56171 IS |
3248 | /* FIXME: |
3249 | This is a rather crude test for whether we should build a dysymtab. */ | |
3250 | if (bfd_mach_o_should_emit_dysymtab () | |
3251 | && bfd_get_symcount (abfd)) | |
3252 | { | |
bbd56171 IS |
3253 | /* If there should be a case where a dysymtab could be emitted without |
3254 | a symtab (seems improbable), this would need amending. */ | |
c9ffd2ea | 3255 | dysymtab_idx = nbr_commands++; |
bbd56171 | 3256 | } |
154a1ee5 | 3257 | |
c9ffd2ea TG |
3258 | /* Add an entry point command. */ |
3259 | if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE | |
3260 | && bfd_get_start_address (abfd) != 0) | |
3261 | main_idx = nbr_commands++; | |
c2f09c75 | 3262 | |
bbd56171 | 3263 | /* Well, we must have a header, at least. */ |
c9ffd2ea | 3264 | mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
f1bde64c | 3265 | |
bbd56171 | 3266 | /* A bit unusual, but no content is valid; |
7f307238 | 3267 | as -n empty.s -o empty.o */ |
c9ffd2ea TG |
3268 | if (nbr_commands == 0) |
3269 | { | |
3270 | /* Layout commands (well none...) and set headers command fields. */ | |
86eafac0 | 3271 | return bfd_mach_o_layout_commands (mdata); |
c9ffd2ea | 3272 | } |
f1bde64c | 3273 | |
c9ffd2ea TG |
3274 | /* Create commands for segments (and symtabs), prepend them. */ |
3275 | commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command)); | |
3276 | if (commands == NULL) | |
0a1b45a2 | 3277 | return false; |
c9ffd2ea TG |
3278 | for (i = 0; i < nbr_commands - 1; i++) |
3279 | commands[i].next = &commands[i + 1]; | |
3280 | commands[nbr_commands - 1].next = mdata->first_command; | |
3281 | if (mdata->first_command == NULL) | |
3282 | mdata->last_command = &commands[nbr_commands - 1]; | |
3283 | mdata->first_command = &commands[0]; | |
3284 | ||
3285 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0) | |
3286 | { | |
3287 | /* For object file, there is only one segment. */ | |
3288 | bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects); | |
3289 | } | |
3290 | else if (nbr_segcmd != 0) | |
68ffbac6 | 3291 | { |
c9ffd2ea | 3292 | bfd_mach_o_load_command *cmd; |
7f307238 | 3293 | |
c9ffd2ea | 3294 | BFD_ASSERT (nbr_segcmd >= 2); |
7f307238 | 3295 | |
c9ffd2ea TG |
3296 | /* The pagezero. */ |
3297 | cmd = &commands[0]; | |
3298 | bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0); | |
3299 | ||
3300 | /* Segments from sections. */ | |
3301 | cmd++; | |
3302 | for (i = 0; i < mdata->nsects;) | |
7f307238 | 3303 | { |
c9ffd2ea TG |
3304 | const char *segname = mdata->sections[i]->segname; |
3305 | unsigned int nbr_sect = 1; | |
3306 | ||
3307 | /* Count number of sections for this segment. */ | |
3308 | for (i++; i < mdata->nsects; i++) | |
3309 | if (strcmp (mdata->sections[i]->segname, segname) == 0) | |
3310 | nbr_sect++; | |
3311 | else | |
3312 | break; | |
3313 | ||
3314 | bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect); | |
3315 | cmd++; | |
7f307238 | 3316 | } |
bbd56171 | 3317 | |
c9ffd2ea TG |
3318 | /* The linkedit. */ |
3319 | bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0); | |
7f307238 | 3320 | } |
f1bde64c | 3321 | |
bbd56171 | 3322 | if (symtab_idx >= 0) |
7f307238 IS |
3323 | { |
3324 | /* Init symtab command. */ | |
c9ffd2ea | 3325 | bfd_mach_o_load_command *cmd = &commands[symtab_idx]; |
68ffbac6 | 3326 | |
bbd56171 | 3327 | cmd->type = BFD_MACH_O_LC_SYMTAB; |
0a1b45a2 | 3328 | cmd->type_required = false; |
7f307238 | 3329 | } |
154a1ee5 | 3330 | |
bbd56171 IS |
3331 | /* If required, setup symtab command, see comment above about the quality |
3332 | of this test. */ | |
3333 | if (dysymtab_idx >= 0) | |
7f307238 | 3334 | { |
c9ffd2ea | 3335 | bfd_mach_o_load_command *cmd = &commands[dysymtab_idx]; |
bbd56171 | 3336 | |
7f307238 | 3337 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; |
0a1b45a2 | 3338 | cmd->type_required = false; |
c9ffd2ea TG |
3339 | } |
3340 | ||
3341 | /* Create the main command. */ | |
3342 | if (main_idx >= 0) | |
3343 | { | |
3344 | bfd_mach_o_load_command *cmd = &commands[main_idx]; | |
7f307238 | 3345 | |
c9ffd2ea | 3346 | cmd->type = BFD_MACH_O_LC_MAIN; |
0a1b45a2 | 3347 | cmd->type_required = true; |
c9ffd2ea TG |
3348 | |
3349 | cmd->command.main.entryoff = 0; | |
3350 | cmd->command.main.stacksize = 0; | |
154a1ee5 | 3351 | } |
154a1ee5 | 3352 | |
c9ffd2ea | 3353 | /* Layout commands. */ |
86eafac0 | 3354 | if (! bfd_mach_o_layout_commands (mdata)) |
0a1b45a2 | 3355 | return false; |
c9ffd2ea | 3356 | |
7f307238 IS |
3357 | /* So, now we have sized the commands and the filelen set to that. |
3358 | Now we can build the segment command and set the section file offsets. */ | |
c9ffd2ea TG |
3359 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) |
3360 | { | |
3361 | for (i = 0; i < nbr_segcmd; i++) | |
3362 | if (!bfd_mach_o_build_obj_seg_command | |
3363 | (abfd, &commands[i].command.segment)) | |
0a1b45a2 | 3364 | return false; |
c9ffd2ea TG |
3365 | } |
3366 | else | |
3367 | { | |
3368 | bfd_vma maxvma = 0; | |
7f307238 | 3369 | |
c9ffd2ea TG |
3370 | /* Skip pagezero and linkedit segments. */ |
3371 | for (i = 1; i < nbr_segcmd - 1; i++) | |
3372 | { | |
3373 | bfd_mach_o_segment_command *seg = &commands[i].command.segment; | |
3374 | ||
3375 | if (!bfd_mach_o_build_exec_seg_command (abfd, seg)) | |
0a1b45a2 | 3376 | return false; |
c9ffd2ea TG |
3377 | |
3378 | if (seg->vmaddr + seg->vmsize > maxvma) | |
3379 | maxvma = seg->vmaddr + seg->vmsize; | |
3380 | } | |
3381 | ||
3382 | /* Set the size of __PAGEZERO. */ | |
3383 | commands[0].command.segment.vmsize = | |
3384 | commands[1].command.segment.vmaddr; | |
3385 | ||
3386 | /* Set the vma and fileoff of __LINKEDIT. */ | |
3387 | commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma; | |
3388 | commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen; | |
3389 | ||
3390 | /* Set entry point (once segments have been laid out). */ | |
3391 | if (main_idx >= 0) | |
3392 | commands[main_idx].command.main.entryoff = | |
3393 | bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr; | |
3394 | } | |
7f307238 | 3395 | |
0a1b45a2 | 3396 | return true; |
154a1ee5 TG |
3397 | } |
3398 | ||
3399 | /* Set the contents of a section. */ | |
3400 | ||
0a1b45a2 | 3401 | bool |
154a1ee5 TG |
3402 | bfd_mach_o_set_section_contents (bfd *abfd, |
3403 | asection *section, | |
3404 | const void * location, | |
3405 | file_ptr offset, | |
3406 | bfd_size_type count) | |
3407 | { | |
3408 | file_ptr pos; | |
3409 | ||
7f307238 IS |
3410 | /* Trying to write the first section contents will trigger the creation of |
3411 | the load commands if they are not already present. */ | |
c9ffd2ea | 3412 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
0a1b45a2 | 3413 | return false; |
154a1ee5 TG |
3414 | |
3415 | if (count == 0) | |
0a1b45a2 | 3416 | return true; |
154a1ee5 TG |
3417 | |
3418 | pos = section->filepos + offset; | |
3419 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
3420 | || bfd_bwrite (location, count, abfd) != count) | |
0a1b45a2 | 3421 | return false; |
154a1ee5 | 3422 | |
0a1b45a2 | 3423 | return true; |
154a1ee5 TG |
3424 | } |
3425 | ||
3426 | int | |
116c20d2 | 3427 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 3428 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
3429 | { |
3430 | return 0; | |
3431 | } | |
3432 | ||
3433 | /* Make an empty symbol. This is required only because | |
3434 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
3435 | ||
154a1ee5 | 3436 | asymbol * |
116c20d2 | 3437 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 3438 | { |
d3ce72d0 NC |
3439 | asymbol *new_symbol; |
3440 | ||
3441 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
3442 | if (new_symbol == NULL) | |
3443 | return new_symbol; | |
3444 | new_symbol->the_bfd = abfd; | |
b22161d6 | 3445 | new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET; |
d3ce72d0 | 3446 | return new_symbol; |
3af9a47b NC |
3447 | } |
3448 | ||
0a1b45a2 | 3449 | static bool |
47daa70f | 3450 | bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header) |
3af9a47b | 3451 | { |
46d1c23b | 3452 | struct mach_o_header_external raw; |
1e8a024a | 3453 | unsigned int size; |
edeb6e24 | 3454 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 3455 | |
1e8a024a | 3456 | /* Just read the magic number. */ |
47daa70f | 3457 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3458 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
0a1b45a2 | 3459 | return false; |
3af9a47b | 3460 | |
46d1c23b | 3461 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
3462 | { |
3463 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3464 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 3465 | header->version = 1; |
3af9a47b NC |
3466 | get32 = bfd_getb32; |
3467 | } | |
46d1c23b | 3468 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 3469 | { |
a95a4550 | 3470 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 3471 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
3472 | header->version = 1; |
3473 | get32 = bfd_getl32; | |
3474 | } | |
46d1c23b | 3475 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3476 | { |
3477 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3478 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
3479 | header->version = 2; |
3480 | get32 = bfd_getb32; | |
3481 | } | |
46d1c23b | 3482 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3483 | { |
3484 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 3485 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 3486 | header->version = 2; |
3af9a47b NC |
3487 | get32 = bfd_getl32; |
3488 | } | |
3489 | else | |
3490 | { | |
3491 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
0a1b45a2 | 3492 | return false; |
3af9a47b | 3493 | } |
a95a4550 | 3494 | |
1e8a024a | 3495 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 3496 | size = mach_o_wide_p (header) ? |
154a1ee5 | 3497 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 3498 | |
47daa70f | 3499 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3500 | || bfd_bread (&raw, size, abfd) != size) |
0a1b45a2 | 3501 | return false; |
1e8a024a | 3502 | |
46d1c23b TG |
3503 | header->cputype = (*get32) (raw.cputype); |
3504 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
3505 | header->filetype = (*get32) (raw.filetype); | |
3506 | header->ncmds = (*get32) (raw.ncmds); | |
3507 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
3508 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 3509 | |
c2f09c75 | 3510 | if (mach_o_wide_p (header)) |
46d1c23b | 3511 | header->reserved = (*get32) (raw.reserved); |
facf03f2 TG |
3512 | else |
3513 | header->reserved = 0; | |
1e8a024a | 3514 | |
0a1b45a2 | 3515 | return true; |
3af9a47b NC |
3516 | } |
3517 | ||
0a1b45a2 | 3518 | bool |
f1bde64c TG |
3519 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) |
3520 | { | |
3521 | bfd_mach_o_section *s; | |
fd361982 | 3522 | unsigned bfdalign = bfd_section_alignment (sec); |
f1bde64c TG |
3523 | |
3524 | s = bfd_mach_o_get_mach_o_section (sec); | |
3525 | if (s == NULL) | |
3526 | { | |
3527 | flagword bfd_flags; | |
a4551119 | 3528 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
3529 | |
3530 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
3531 | if (s == NULL) | |
0a1b45a2 | 3532 | return false; |
f1bde64c TG |
3533 | sec->used_by_bfd = s; |
3534 | s->bfdsection = sec; | |
3535 | ||
a4551119 TG |
3536 | /* Create the Darwin seg/sect name pair from the bfd name. |
3537 | If this is a canonical name for which a specific paiting exists | |
3538 | there will also be defined flags, type, attribute and alignment | |
3539 | values. */ | |
3540 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
3541 | if (xlat != NULL) | |
3542 | { | |
3543 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
68ffbac6 | 3544 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign |
a4551119 | 3545 | : bfdalign; |
fd361982 AM |
3546 | bfd_set_section_alignment (sec, s->align); |
3547 | bfd_flags = bfd_section_flags (sec); | |
a4551119 | 3548 | if (bfd_flags == SEC_NO_FLAGS) |
fd361982 | 3549 | bfd_set_section_flags (sec, xlat->bfd_flags); |
a4551119 | 3550 | } |
f1bde64c | 3551 | else |
a4551119 TG |
3552 | /* Create default flags. */ |
3553 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
3554 | } |
3555 | ||
3556 | return _bfd_generic_new_section_hook (abfd, sec); | |
3557 | } | |
3558 | ||
3559 | static void | |
fd361982 | 3560 | bfd_mach_o_init_section_from_mach_o (asection *sec, unsigned long prot) |
3af9a47b | 3561 | { |
117ed4f8 | 3562 | flagword flags; |
f1bde64c | 3563 | bfd_mach_o_section *section; |
3af9a47b | 3564 | |
fd361982 | 3565 | flags = bfd_section_flags (sec); |
f1bde64c | 3566 | section = bfd_mach_o_get_mach_o_section (sec); |
3af9a47b | 3567 | |
a4551119 TG |
3568 | /* TODO: see if we should use the xlat system for doing this by |
3569 | preference and fall back to this for unknown sections. */ | |
3570 | ||
8462aec7 | 3571 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 3572 | { |
8462aec7 TG |
3573 | /* Try to guess flags. */ |
3574 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
07d6d2b8 | 3575 | flags = SEC_DEBUGGING; |
8462aec7 | 3576 | else |
07d6d2b8 AM |
3577 | { |
3578 | flags = SEC_ALLOC; | |
3579 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
3580 | != BFD_MACH_O_S_ZEROFILL) | |
3581 | { | |
3582 | flags |= SEC_LOAD; | |
3583 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
3584 | flags |= SEC_CODE; | |
3585 | if (prot & BFD_MACH_O_PROT_WRITE) | |
3586 | flags |= SEC_DATA; | |
3587 | else if (prot & BFD_MACH_O_PROT_READ) | |
3588 | flags |= SEC_READONLY; | |
3589 | } | |
3590 | } | |
ef17cb22 | 3591 | } |
15e1c58a TG |
3592 | else |
3593 | { | |
8462aec7 | 3594 | if ((flags & SEC_DEBUGGING) == 0) |
07d6d2b8 | 3595 | flags |= SEC_ALLOC; |
15e1c58a | 3596 | } |
8462aec7 TG |
3597 | |
3598 | if (section->offset != 0) | |
3599 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
3600 | if (section->nreloc != 0) |
3601 | flags |= SEC_RELOC; | |
3602 | ||
fd361982 | 3603 | bfd_set_section_flags (sec, flags); |
f1bde64c TG |
3604 | |
3605 | sec->vma = section->addr; | |
3606 | sec->lma = section->addr; | |
3607 | sec->size = section->size; | |
3608 | sec->filepos = section->offset; | |
3609 | sec->alignment_power = section->align; | |
3610 | sec->segment_mark = 0; | |
3611 | sec->reloc_count = section->nreloc; | |
3612 | sec->rel_filepos = section->reloff; | |
3613 | } | |
3614 | ||
3615 | static asection * | |
3616 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
07d6d2b8 AM |
3617 | const unsigned char *segname, |
3618 | const unsigned char *sectname) | |
f1bde64c TG |
3619 | { |
3620 | const char *sname; | |
3621 | flagword flags; | |
a95a4550 | 3622 | |
f1bde64c TG |
3623 | bfd_mach_o_convert_section_name_to_bfd |
3624 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
3625 | if (sname == NULL) | |
3626 | return NULL; | |
3af9a47b | 3627 | |
f1bde64c | 3628 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
3629 | } |
3630 | ||
f1bde64c | 3631 | static asection * |
47daa70f | 3632 | bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot) |
3af9a47b | 3633 | { |
46d1c23b | 3634 | struct mach_o_section_32_external raw; |
f1bde64c TG |
3635 | asection *sec; |
3636 | bfd_mach_o_section *section; | |
3af9a47b | 3637 | |
47daa70f TG |
3638 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
3639 | != BFD_MACH_O_SECTION_SIZE) | |
f1bde64c | 3640 | return NULL; |
a95a4550 | 3641 | |
5a5cbf72 | 3642 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3643 | if (sec == NULL) |
3644 | return NULL; | |
3645 | ||
3646 | section = bfd_mach_o_get_mach_o_section (sec); | |
3647 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3648 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3649 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3650 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3651 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
3652 | section->size = bfd_h_get_32 (abfd, raw.size); | |
3653 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3654 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3655 | /* PR 17512: file: 0017eb76. */ |
3656 | if (section->align > 64) | |
3657 | { | |
4eca0228 | 3658 | _bfd_error_handler |
d42c267e | 3659 | (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, " |
4eca0228 | 3660 | "using 32 instead"), section->align); |
c86934ce NC |
3661 | section->align = 32; |
3662 | } | |
46d1c23b TG |
3663 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3664 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3665 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3666 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3667 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 3668 | section->reserved3 = 0; |
1e8a024a | 3669 | |
fd361982 | 3670 | bfd_mach_o_init_section_from_mach_o (sec, prot); |
1e8a024a | 3671 | |
f1bde64c | 3672 | return sec; |
1e8a024a TG |
3673 | } |
3674 | ||
f1bde64c | 3675 | static asection * |
47daa70f | 3676 | bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot) |
1e8a024a | 3677 | { |
46d1c23b | 3678 | struct mach_o_section_64_external raw; |
f1bde64c TG |
3679 | asection *sec; |
3680 | bfd_mach_o_section *section; | |
1e8a024a | 3681 | |
47daa70f TG |
3682 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
3683 | != BFD_MACH_O_SECTION_64_SIZE) | |
f1bde64c TG |
3684 | return NULL; |
3685 | ||
5a5cbf72 | 3686 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3687 | if (sec == NULL) |
3688 | return NULL; | |
1e8a024a | 3689 | |
f1bde64c TG |
3690 | section = bfd_mach_o_get_mach_o_section (sec); |
3691 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3692 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3693 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3694 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3695 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
3696 | section->size = bfd_h_get_64 (abfd, raw.size); | |
3697 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3698 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3699 | if (section->align > 64) |
3700 | { | |
4eca0228 | 3701 | _bfd_error_handler |
d42c267e | 3702 | (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, " |
4eca0228 | 3703 | "using 32 instead"), section->align); |
c86934ce NC |
3704 | section->align = 32; |
3705 | } | |
46d1c23b TG |
3706 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3707 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3708 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3709 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3710 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
3711 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 3712 | |
fd361982 | 3713 | bfd_mach_o_init_section_from_mach_o (sec, prot); |
3af9a47b | 3714 | |
f1bde64c | 3715 | return sec; |
3af9a47b NC |
3716 | } |
3717 | ||
f1bde64c | 3718 | static asection * |
47daa70f | 3719 | bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide) |
1e8a024a TG |
3720 | { |
3721 | if (wide) | |
47daa70f | 3722 | return bfd_mach_o_read_section_64 (abfd, prot); |
1e8a024a | 3723 | else |
47daa70f | 3724 | return bfd_mach_o_read_section_32 (abfd, prot); |
1e8a024a TG |
3725 | } |
3726 | ||
0a1b45a2 | 3727 | static bool |
ab273af8 | 3728 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
07d6d2b8 AM |
3729 | bfd_mach_o_symtab_command *sym, |
3730 | bfd_mach_o_asymbol *s, | |
3731 | unsigned long i) | |
3af9a47b | 3732 | { |
046b007d | 3733 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 3734 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
3735 | unsigned int symwidth = |
3736 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 3737 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 3738 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
3739 | unsigned char type = -1; |
3740 | unsigned char section = -1; | |
3741 | short desc = -1; | |
1e8a024a | 3742 | symvalue value = -1; |
3af9a47b NC |
3743 | unsigned long stroff = -1; |
3744 | unsigned int symtype = -1; | |
3745 | ||
3746 | BFD_ASSERT (sym->strtab != NULL); | |
3747 | ||
c2f09c75 | 3748 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 3749 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 3750 | { |
4eca0228 | 3751 | _bfd_error_handler |
695344c0 | 3752 | /* xgettext:c-format */ |
07d6d2b8 AM |
3753 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"), |
3754 | symwidth, symoff); | |
0a1b45a2 | 3755 | return false; |
3af9a47b NC |
3756 | } |
3757 | ||
46d1c23b TG |
3758 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
3759 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 3760 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
3761 | section = bfd_h_get_8 (abfd, raw.n_sect); |
3762 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 3763 | if (wide) |
46d1c23b | 3764 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 3765 | else |
46d1c23b | 3766 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
3767 | |
3768 | if (stroff >= sym->strsize) | |
3769 | { | |
4eca0228 | 3770 | _bfd_error_handler |
695344c0 | 3771 | /* xgettext:c-format */ |
07d6d2b8 AM |
3772 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"), |
3773 | stroff, | |
3774 | sym->strsize); | |
0a1b45a2 | 3775 | return false; |
3af9a47b NC |
3776 | } |
3777 | ||
92bc0e80 TG |
3778 | s->symbol.the_bfd = abfd; |
3779 | s->symbol.name = sym->strtab + stroff; | |
3780 | s->symbol.value = value; | |
3781 | s->symbol.flags = 0x0; | |
b22161d6 | 3782 | s->symbol.udata.i = i; |
92bc0e80 TG |
3783 | s->n_type = type; |
3784 | s->n_sect = section; | |
3785 | s->n_desc = desc; | |
3af9a47b NC |
3786 | |
3787 | if (type & BFD_MACH_O_N_STAB) | |
3788 | { | |
92bc0e80 TG |
3789 | s->symbol.flags |= BSF_DEBUGGING; |
3790 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
3791 | switch (type) |
3792 | { | |
3793 | case N_FUN: | |
3794 | case N_STSYM: | |
3795 | case N_LCSYM: | |
3796 | case N_BNSYM: | |
3797 | case N_SLINE: | |
3798 | case N_ENSYM: | |
3799 | case N_ECOMM: | |
3800 | case N_ECOML: | |
3801 | case N_GSYM: | |
3802 | if ((section > 0) && (section <= mdata->nsects)) | |
3803 | { | |
92bc0e80 TG |
3804 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3805 | s->symbol.value = | |
07d6d2b8 | 3806 | s->symbol.value - mdata->sections[section - 1]->addr; |
15e1c58a TG |
3807 | } |
3808 | break; | |
3809 | } | |
3af9a47b NC |
3810 | } |
3811 | else | |
3812 | { | |
b22161d6 | 3813 | if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)) |
92bc0e80 | 3814 | s->symbol.flags |= BSF_GLOBAL; |
b22161d6 | 3815 | else |
92bc0e80 | 3816 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
3817 | |
3818 | switch (symtype) | |
3819 | { | |
3820 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
3821 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
3822 | && s->symbol.value != 0) | |
3823 | { | |
3824 | /* A common symbol. */ | |
3825 | s->symbol.section = bfd_com_section_ptr; | |
3826 | s->symbol.flags = BSF_NO_FLAGS; | |
3827 | } | |
3828 | else | |
3829 | { | |
3830 | s->symbol.section = bfd_und_section_ptr; | |
3831 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
3832 | s->symbol.flags |= BSF_WEAK; | |
3833 | } | |
3af9a47b NC |
3834 | break; |
3835 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 3836 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3837 | break; |
3838 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 3839 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
3840 | break; |
3841 | case BFD_MACH_O_N_SECT: | |
3842 | if ((section > 0) && (section <= mdata->nsects)) | |
3843 | { | |
92bc0e80 TG |
3844 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3845 | s->symbol.value = | |
07d6d2b8 | 3846 | s->symbol.value - mdata->sections[section - 1]->addr; |
3af9a47b NC |
3847 | } |
3848 | else | |
3849 | { | |
3850 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
3851 | if (section != 0) | |
3852 | { | |
4eca0228 | 3853 | _bfd_error_handler |
695344c0 | 3854 | /* xgettext:c-format */ |
4eca0228 AM |
3855 | (_("bfd_mach_o_read_symtab_symbol: " |
3856 | "symbol \"%s\" specified invalid section %d (max %lu): " | |
3857 | "setting to undefined"), | |
3858 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 3859 | } |
92bc0e80 | 3860 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3861 | } |
3862 | break; | |
3863 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
3864 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
3865 | won't be followed by the referenced one. This looks harmless | |
3866 | unless we start using the linker. */ | |
3867 | s->symbol.flags |= BSF_INDIRECT; | |
3868 | s->symbol.section = bfd_ind_section_ptr; | |
3869 | s->symbol.value = 0; | |
3af9a47b NC |
3870 | break; |
3871 | default: | |
4eca0228 | 3872 | _bfd_error_handler |
695344c0 | 3873 | /* xgettext:c-format */ |
4eca0228 AM |
3874 | (_("bfd_mach_o_read_symtab_symbol: " |
3875 | "symbol \"%s\" specified invalid type field 0x%x: " | |
3876 | "setting to undefined"), s->symbol.name, symtype); | |
92bc0e80 | 3877 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3878 | break; |
3879 | } | |
3880 | } | |
3881 | ||
0a1b45a2 | 3882 | return true; |
3af9a47b NC |
3883 | } |
3884 | ||
0a1b45a2 | 3885 | bool |
ab273af8 | 3886 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 3887 | { |
046b007d TG |
3888 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3889 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3890 | ||
3891 | /* Fail if there is no symtab. */ | |
3892 | if (sym == NULL) | |
0a1b45a2 | 3893 | return false; |
046b007d TG |
3894 | |
3895 | /* Success if already loaded. */ | |
3896 | if (sym->strtab) | |
0a1b45a2 | 3897 | return true; |
3af9a47b NC |
3898 | |
3899 | if (abfd->flags & BFD_IN_MEMORY) | |
3900 | { | |
3901 | struct bfd_in_memory *b; | |
3902 | ||
3903 | b = (struct bfd_in_memory *) abfd->iostream; | |
3904 | ||
3905 | if ((sym->stroff + sym->strsize) > b->size) | |
3906 | { | |
3907 | bfd_set_error (bfd_error_file_truncated); | |
0a1b45a2 | 3908 | return false; |
3af9a47b | 3909 | } |
f075ee0c | 3910 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 3911 | } |
046b007d | 3912 | else |
3af9a47b | 3913 | { |
8bdf0be1 NC |
3914 | /* See PR 21840 for a reproducer. */ |
3915 | if ((sym->strsize + 1) == 0) | |
0a1b45a2 | 3916 | return false; |
2bb3687b | 3917 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
0a1b45a2 | 3918 | return false; |
2bb3687b AM |
3919 | sym->strtab = (char *) _bfd_alloc_and_read (abfd, sym->strsize + 1, |
3920 | sym->strsize); | |
046b007d | 3921 | if (sym->strtab == NULL) |
0a1b45a2 | 3922 | return false; |
046b007d | 3923 | |
e7287c7f NC |
3924 | /* Zero terminate the string table. */ |
3925 | sym->strtab[sym->strsize] = 0; | |
3af9a47b NC |
3926 | } |
3927 | ||
0a1b45a2 | 3928 | return true; |
3af9a47b NC |
3929 | } |
3930 | ||
0a1b45a2 | 3931 | bool |
ab273af8 | 3932 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 3933 | { |
046b007d TG |
3934 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3935 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 3936 | unsigned long i; |
1f4361a7 | 3937 | size_t amt; |
a4425a57 | 3938 | ufile_ptr filesize; |
3af9a47b | 3939 | |
a4425a57 | 3940 | if (sym == NULL || sym->nsyms == 0 || sym->symbols) |
0a9d414a | 3941 | /* Return now if there are no symbols or if already loaded. */ |
0a1b45a2 | 3942 | return true; |
046b007d | 3943 | |
a4425a57 AM |
3944 | filesize = bfd_get_file_size (abfd); |
3945 | if (filesize != 0) | |
3946 | { | |
3947 | unsigned int wide = mach_o_wide_p (&mdata->header); | |
3948 | unsigned int symwidth | |
3949 | = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
3950 | ||
3951 | if (sym->symoff > filesize | |
3952 | || sym->nsyms > (filesize - sym->symoff) / symwidth) | |
3953 | { | |
3954 | bfd_set_error (bfd_error_file_truncated); | |
3955 | sym->nsyms = 0; | |
0a1b45a2 | 3956 | return false; |
a4425a57 AM |
3957 | } |
3958 | } | |
1f4361a7 AM |
3959 | if (_bfd_mul_overflow (sym->nsyms, sizeof (bfd_mach_o_asymbol), &amt) |
3960 | || (sym->symbols = bfd_alloc (abfd, amt)) == NULL) | |
3af9a47b | 3961 | { |
1f4361a7 | 3962 | bfd_set_error (bfd_error_no_memory); |
64d29018 | 3963 | sym->nsyms = 0; |
0a1b45a2 | 3964 | return false; |
3af9a47b | 3965 | } |
a95a4550 | 3966 | |
afbb9e17 | 3967 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
64d29018 | 3968 | goto fail; |
3af9a47b NC |
3969 | |
3970 | for (i = 0; i < sym->nsyms; i++) | |
64d29018 NC |
3971 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
3972 | goto fail; | |
a95a4550 | 3973 | |
0a1b45a2 | 3974 | return true; |
64d29018 NC |
3975 | |
3976 | fail: | |
3977 | bfd_release (abfd, sym->symbols); | |
3978 | sym->symbols = NULL; | |
3979 | sym->nsyms = 0; | |
0a1b45a2 | 3980 | return false; |
3af9a47b NC |
3981 | } |
3982 | ||
3983 | static const char * | |
116c20d2 | 3984 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
3985 | { |
3986 | switch ((int) flavour) | |
3987 | { | |
15e1c58a TG |
3988 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
3989 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
3990 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
3991 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
3992 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
3993 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
3994 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
3995 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
3996 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
3997 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
3998 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
3999 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 4000 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
4001 | default: return "UNKNOWN"; |
4002 | } | |
4003 | } | |
4004 | ||
4005 | static const char * | |
116c20d2 | 4006 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
4007 | { |
4008 | switch ((int) flavour) | |
4009 | { | |
b32e07d7 TG |
4010 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
4011 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
4012 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
4013 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
4014 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
4015 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
4016 | default: return "UNKNOWN"; |
4017 | } | |
4018 | } | |
4019 | ||
806470a2 AM |
4020 | static unsigned char * |
4021 | bfd_mach_o_alloc_and_read (bfd *abfd, file_ptr filepos, size_t size) | |
4022 | { | |
2bb3687b | 4023 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) |
806470a2 | 4024 | return NULL; |
2bb3687b | 4025 | return _bfd_alloc_and_read (abfd, size, size); |
806470a2 AM |
4026 | } |
4027 | ||
0a1b45a2 | 4028 | static bool |
ab273af8 | 4029 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
4030 | { |
4031 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 4032 | struct mach_o_str_command_external raw; |
3af9a47b | 4033 | unsigned int nameoff; |
4525c51a | 4034 | unsigned int namelen; |
3af9a47b | 4035 | |
3e6aa775 | 4036 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4037 | return false; |
47daa70f | 4038 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4039 | return false; |
3af9a47b | 4040 | |
46d1c23b | 4041 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3e6aa775 | 4042 | if (nameoff > command->len) |
0a1b45a2 | 4043 | return false; |
3af9a47b | 4044 | |
4525c51a TG |
4045 | cmd->name_offset = nameoff; |
4046 | namelen = command->len - nameoff; | |
4047 | nameoff += command->offset; | |
806470a2 AM |
4048 | cmd->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, nameoff, namelen); |
4049 | return cmd->name_str != NULL; | |
3af9a47b NC |
4050 | } |
4051 | ||
0a1b45a2 | 4052 | static bool |
ab273af8 | 4053 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4054 | { |
47daa70f | 4055 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4056 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
46d1c23b | 4057 | struct mach_o_dylib_command_external raw; |
3af9a47b | 4058 | unsigned int nameoff; |
4525c51a | 4059 | unsigned int namelen; |
806470a2 | 4060 | file_ptr pos; |
3af9a47b | 4061 | |
3e6aa775 | 4062 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4063 | return false; |
046b007d TG |
4064 | switch (command->type) |
4065 | { | |
4066 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4067 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
046b007d | 4068 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 4069 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 4070 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4071 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
4072 | break; |
4073 | default: | |
b32e07d7 | 4074 | BFD_FAIL (); |
0a1b45a2 | 4075 | return false; |
046b007d | 4076 | } |
3af9a47b | 4077 | |
47daa70f | 4078 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4079 | return false; |
3af9a47b | 4080 | |
46d1c23b | 4081 | nameoff = bfd_h_get_32 (abfd, raw.name); |
3e6aa775 | 4082 | if (nameoff > command->len) |
0a1b45a2 | 4083 | return false; |
46d1c23b TG |
4084 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); |
4085 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
4086 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
4087 | |
4088 | cmd->name_offset = command->offset + nameoff; | |
4525c51a | 4089 | namelen = command->len - nameoff; |
806470a2 AM |
4090 | pos = mdata->hdr_offset + cmd->name_offset; |
4091 | cmd->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, pos, namelen); | |
4092 | return cmd->name_str != NULL; | |
3af9a47b NC |
4093 | } |
4094 | ||
0a1b45a2 | 4095 | static bool |
7a79c514 | 4096 | bfd_mach_o_read_prebound_dylib (bfd *abfd, |
07d6d2b8 | 4097 | bfd_mach_o_load_command *command) |
3af9a47b | 4098 | { |
7a79c514 TG |
4099 | bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; |
4100 | struct mach_o_prebound_dylib_command_external raw; | |
4101 | unsigned int nameoff; | |
4102 | unsigned int modoff; | |
4103 | unsigned int str_len; | |
4104 | unsigned char *str; | |
4105 | ||
3e6aa775 | 4106 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4107 | return false; |
47daa70f | 4108 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4109 | return false; |
7a79c514 TG |
4110 | |
4111 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
4112 | modoff = bfd_h_get_32 (abfd, raw.linked_modules); | |
4113 | if (nameoff > command->len || modoff > command->len) | |
0a1b45a2 | 4114 | return false; |
7a79c514 TG |
4115 | |
4116 | str_len = command->len - sizeof (raw); | |
2bb3687b | 4117 | str = _bfd_alloc_and_read (abfd, str_len, str_len); |
7a79c514 | 4118 | if (str == NULL) |
0a1b45a2 | 4119 | return false; |
7a79c514 TG |
4120 | |
4121 | cmd->name_offset = command->offset + nameoff; | |
4122 | cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules); | |
4123 | cmd->linked_modules_offset = command->offset + modoff; | |
4124 | ||
4125 | cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
4126 | cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
0a1b45a2 | 4127 | return true; |
7a79c514 TG |
4128 | } |
4129 | ||
0a1b45a2 | 4130 | static bool |
7a79c514 TG |
4131 | bfd_mach_o_read_prebind_cksum (bfd *abfd, |
4132 | bfd_mach_o_load_command *command) | |
4133 | { | |
4134 | bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum; | |
4135 | struct mach_o_prebind_cksum_command_external raw; | |
3af9a47b | 4136 | |
3e6aa775 | 4137 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4138 | return false; |
47daa70f | 4139 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4140 | return false; |
7a79c514 TG |
4141 | |
4142 | cmd->cksum = bfd_get_32 (abfd, raw.cksum); | |
0a1b45a2 | 4143 | return true; |
7a79c514 TG |
4144 | } |
4145 | ||
0a1b45a2 | 4146 | static bool |
7a79c514 TG |
4147 | bfd_mach_o_read_twolevel_hints (bfd *abfd, |
4148 | bfd_mach_o_load_command *command) | |
4149 | { | |
4150 | bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints; | |
4151 | struct mach_o_twolevel_hints_command_external raw; | |
4152 | ||
3e6aa775 | 4153 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4154 | return false; |
47daa70f | 4155 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4156 | return false; |
7a79c514 TG |
4157 | |
4158 | cmd->offset = bfd_get_32 (abfd, raw.offset); | |
4159 | cmd->nhints = bfd_get_32 (abfd, raw.nhints); | |
0a1b45a2 | 4160 | return true; |
3af9a47b NC |
4161 | } |
4162 | ||
0a1b45a2 | 4163 | static bool |
9f4a5bd1 TG |
4164 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) |
4165 | { | |
4166 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
4167 | struct mach_o_fvmlib_command_external raw; | |
4168 | unsigned int nameoff; | |
4525c51a | 4169 | unsigned int namelen; |
9f4a5bd1 | 4170 | |
3e6aa775 | 4171 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4172 | return false; |
47daa70f | 4173 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4174 | return false; |
9f4a5bd1 TG |
4175 | |
4176 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3e6aa775 | 4177 | if (nameoff > command->len) |
0a1b45a2 | 4178 | return false; |
9f4a5bd1 TG |
4179 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); |
4180 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
4181 | ||
4182 | fvm->name_offset = command->offset + nameoff; | |
4525c51a | 4183 | namelen = command->len - nameoff; |
806470a2 AM |
4184 | fvm->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, fvm->name_offset, |
4185 | namelen); | |
4186 | return fvm->name_str != NULL; | |
9f4a5bd1 TG |
4187 | } |
4188 | ||
0a1b45a2 | 4189 | static bool |
ab273af8 | 4190 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4191 | { |
b32e07d7 | 4192 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4193 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 4194 | unsigned int offset; |
3af9a47b NC |
4195 | unsigned int nflavours; |
4196 | unsigned int i; | |
3e6aa775 | 4197 | struct mach_o_thread_command_external raw; |
1f4361a7 | 4198 | size_t amt; |
3af9a47b NC |
4199 | |
4200 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
4201 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
4202 | ||
b32e07d7 | 4203 | /* Count the number of threads. */ |
3af9a47b NC |
4204 | offset = 8; |
4205 | nflavours = 0; | |
3e6aa775 | 4206 | while (offset + sizeof (raw) <= command->len) |
3af9a47b | 4207 | { |
3e6aa775 | 4208 | unsigned int count; |
3af9a47b | 4209 | |
c2f09c75 | 4210 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4211 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4212 | return false; |
3af9a47b | 4213 | |
3e6aa775 AM |
4214 | count = bfd_h_get_32 (abfd, raw.count); |
4215 | if (count > (unsigned) -1 / 4 | |
4216 | || command->len - (offset + sizeof (raw)) < count * 4) | |
0a1b45a2 | 4217 | return false; |
3e6aa775 | 4218 | offset += sizeof (raw) + count * 4; |
3af9a47b NC |
4219 | nflavours++; |
4220 | } | |
3e6aa775 | 4221 | if (nflavours == 0 || offset != command->len) |
0a1b45a2 | 4222 | return false; |
3af9a47b | 4223 | |
b32e07d7 | 4224 | /* Allocate threads. */ |
1f4361a7 AM |
4225 | if (_bfd_mul_overflow (nflavours, sizeof (bfd_mach_o_thread_flavour), &amt)) |
4226 | { | |
4227 | bfd_set_error (bfd_error_file_too_big); | |
0a1b45a2 | 4228 | return false; |
1f4361a7 AM |
4229 | } |
4230 | cmd->flavours = bfd_alloc (abfd, amt); | |
3af9a47b | 4231 | if (cmd->flavours == NULL) |
0a1b45a2 | 4232 | return false; |
3af9a47b NC |
4233 | cmd->nflavours = nflavours; |
4234 | ||
4235 | offset = 8; | |
4236 | nflavours = 0; | |
4237 | while (offset != command->len) | |
4238 | { | |
c2f09c75 | 4239 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4240 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4241 | return false; |
3af9a47b | 4242 | |
46d1c23b TG |
4243 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
4244 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
4245 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
4246 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
4247 | nflavours++; |
4248 | } | |
4249 | ||
4250 | for (i = 0; i < nflavours; i++) | |
4251 | { | |
4252 | asection *bfdsec; | |
4253 | unsigned int snamelen; | |
4254 | char *sname; | |
4255 | const char *flavourstr; | |
4256 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
4257 | unsigned int j = 0; |
4258 | ||
3af9a47b NC |
4259 | switch (mdata->header.cputype) |
4260 | { | |
4261 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 4262 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
707e555b TG |
4263 | flavourstr = |
4264 | bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4265 | break; |
4266 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 4267 | case BFD_MACH_O_CPU_TYPE_X86_64: |
707e555b TG |
4268 | flavourstr = |
4269 | bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4270 | break; |
4271 | default: | |
4272 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
4273 | break; | |
4274 | } | |
a95a4550 | 4275 | |
3af9a47b | 4276 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 4277 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b | 4278 | if (sname == NULL) |
0a1b45a2 | 4279 | return false; |
3af9a47b NC |
4280 | |
4281 | for (;;) | |
4282 | { | |
a95a4550 AM |
4283 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
4284 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 4285 | break; |
a95a4550 | 4286 | j++; |
3af9a47b NC |
4287 | } |
4288 | ||
117ed4f8 | 4289 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 4290 | |
3af9a47b NC |
4291 | bfdsec->vma = 0; |
4292 | bfdsec->lma = 0; | |
eea6121a | 4293 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
4294 | bfdsec->filepos = cmd->flavours[i].offset; |
4295 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
4296 | |
4297 | cmd->section = bfdsec; | |
4298 | } | |
4299 | ||
0a1b45a2 | 4300 | return true; |
3af9a47b NC |
4301 | } |
4302 | ||
0a1b45a2 | 4303 | static bool |
a4425a57 AM |
4304 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command, |
4305 | ufile_ptr filesize) | |
3af9a47b | 4306 | { |
046b007d | 4307 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 4308 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4309 | |
4310 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
4311 | ||
46d1c23b TG |
4312 | { |
4313 | struct mach_o_dysymtab_command_external raw; | |
4314 | ||
3e6aa775 | 4315 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4316 | return false; |
47daa70f | 4317 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4318 | return false; |
3af9a47b | 4319 | |
46d1c23b TG |
4320 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
4321 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
4322 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
4323 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
4324 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
4325 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
4326 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
4327 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
4328 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
4329 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
4330 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
4331 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
4332 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
4333 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
4334 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
4335 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
4336 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
4337 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
4338 | } | |
046b007d TG |
4339 | |
4340 | if (cmd->nmodtab != 0) | |
4341 | { | |
046b007d TG |
4342 | unsigned int i; |
4343 | int wide = bfd_mach_o_wide_p (abfd); | |
4344 | unsigned int module_len = wide ? 56 : 52; | |
1f4361a7 | 4345 | size_t amt; |
046b007d | 4346 | |
a4425a57 AM |
4347 | if (cmd->modtaboff > filesize |
4348 | || cmd->nmodtab > (filesize - cmd->modtaboff) / module_len) | |
4349 | { | |
4350 | bfd_set_error (bfd_error_file_truncated); | |
0a1b45a2 | 4351 | return false; |
a4425a57 | 4352 | } |
1f4361a7 AM |
4353 | if (_bfd_mul_overflow (cmd->nmodtab, |
4354 | sizeof (bfd_mach_o_dylib_module), &amt)) | |
4355 | { | |
4356 | bfd_set_error (bfd_error_file_too_big); | |
0a1b45a2 | 4357 | return false; |
1f4361a7 AM |
4358 | } |
4359 | cmd->dylib_module = bfd_alloc (abfd, amt); | |
046b007d | 4360 | if (cmd->dylib_module == NULL) |
0a1b45a2 | 4361 | return false; |
046b007d TG |
4362 | |
4363 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
0a1b45a2 | 4364 | return false; |
046b007d TG |
4365 | |
4366 | for (i = 0; i < cmd->nmodtab; i++) | |
07d6d2b8 AM |
4367 | { |
4368 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
4369 | unsigned long v; | |
4370 | unsigned char buf[56]; | |
4371 | ||
4372 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) | |
0a1b45a2 | 4373 | return false; |
07d6d2b8 AM |
4374 | |
4375 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
4376 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
4377 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
4378 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
4379 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
4380 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
4381 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
4382 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
4383 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
4384 | v = bfd_h_get_32 (abfd, buf +36); | |
4385 | module->iinit = v & 0xffff; | |
4386 | module->iterm = (v >> 16) & 0xffff; | |
4387 | v = bfd_h_get_32 (abfd, buf + 40); | |
4388 | module->ninit = v & 0xffff; | |
4389 | module->nterm = (v >> 16) & 0xffff; | |
4390 | if (wide) | |
4391 | { | |
4392 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
4393 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
4394 | } | |
4395 | else | |
4396 | { | |
4397 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
4398 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
4399 | } | |
4400 | } | |
046b007d | 4401 | } |
afbb9e17 | 4402 | |
046b007d TG |
4403 | if (cmd->ntoc != 0) |
4404 | { | |
64d29018 | 4405 | unsigned long i; |
1f4361a7 | 4406 | size_t amt; |
a4425a57 | 4407 | struct mach_o_dylib_table_of_contents_external raw; |
046b007d | 4408 | |
a4425a57 AM |
4409 | if (cmd->tocoff > filesize |
4410 | || cmd->ntoc > (filesize - cmd->tocoff) / sizeof (raw)) | |
4411 | { | |
4412 | bfd_set_error (bfd_error_file_truncated); | |
0a1b45a2 | 4413 | return false; |
a4425a57 | 4414 | } |
1f4361a7 AM |
4415 | if (_bfd_mul_overflow (cmd->ntoc, |
4416 | sizeof (bfd_mach_o_dylib_table_of_content), &amt)) | |
4417 | { | |
4418 | bfd_set_error (bfd_error_file_too_big); | |
0a1b45a2 | 4419 | return false; |
1f4361a7 AM |
4420 | } |
4421 | cmd->dylib_toc = bfd_alloc (abfd, amt); | |
046b007d | 4422 | if (cmd->dylib_toc == NULL) |
0a1b45a2 | 4423 | return false; |
046b007d TG |
4424 | |
4425 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
0a1b45a2 | 4426 | return false; |
046b007d TG |
4427 | |
4428 | for (i = 0; i < cmd->ntoc; i++) | |
07d6d2b8 | 4429 | { |
07d6d2b8 | 4430 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; |
046b007d | 4431 | |
07d6d2b8 | 4432 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4433 | return false; |
046b007d | 4434 | |
07d6d2b8 AM |
4435 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
4436 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
4437 | } | |
046b007d TG |
4438 | } |
4439 | ||
4440 | if (cmd->nindirectsyms != 0) | |
4441 | { | |
046b007d | 4442 | unsigned int i; |
1f4361a7 | 4443 | size_t amt; |
046b007d | 4444 | |
a4425a57 AM |
4445 | if (cmd->indirectsymoff > filesize |
4446 | || cmd->nindirectsyms > (filesize - cmd->indirectsymoff) / 4) | |
4447 | { | |
4448 | bfd_set_error (bfd_error_file_truncated); | |
0a1b45a2 | 4449 | return false; |
a4425a57 | 4450 | } |
1f4361a7 AM |
4451 | if (_bfd_mul_overflow (cmd->nindirectsyms, sizeof (unsigned int), &amt)) |
4452 | { | |
4453 | bfd_set_error (bfd_error_file_too_big); | |
0a1b45a2 | 4454 | return false; |
1f4361a7 AM |
4455 | } |
4456 | cmd->indirect_syms = bfd_alloc (abfd, amt); | |
046b007d | 4457 | if (cmd->indirect_syms == NULL) |
0a1b45a2 | 4458 | return false; |
046b007d TG |
4459 | |
4460 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
0a1b45a2 | 4461 | return false; |
046b007d TG |
4462 | |
4463 | for (i = 0; i < cmd->nindirectsyms; i++) | |
07d6d2b8 AM |
4464 | { |
4465 | unsigned char raw[4]; | |
4466 | unsigned int *is = &cmd->indirect_syms[i]; | |
046b007d | 4467 | |
07d6d2b8 | 4468 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4469 | return false; |
046b007d | 4470 | |
07d6d2b8 AM |
4471 | *is = bfd_h_get_32 (abfd, raw); |
4472 | } | |
046b007d TG |
4473 | } |
4474 | ||
4475 | if (cmd->nextrefsyms != 0) | |
4476 | { | |
046b007d TG |
4477 | unsigned long v; |
4478 | unsigned int i; | |
1f4361a7 | 4479 | size_t amt; |
046b007d | 4480 | |
a4425a57 AM |
4481 | if (cmd->extrefsymoff > filesize |
4482 | || cmd->nextrefsyms > (filesize - cmd->extrefsymoff) / 4) | |
4483 | { | |
4484 | bfd_set_error (bfd_error_file_truncated); | |
0a1b45a2 | 4485 | return false; |
a4425a57 | 4486 | } |
1f4361a7 AM |
4487 | if (_bfd_mul_overflow (cmd->nextrefsyms, |
4488 | sizeof (bfd_mach_o_dylib_reference), &amt)) | |
4489 | { | |
4490 | bfd_set_error (bfd_error_file_too_big); | |
0a1b45a2 | 4491 | return false; |
1f4361a7 AM |
4492 | } |
4493 | cmd->ext_refs = bfd_alloc (abfd, amt); | |
046b007d | 4494 | if (cmd->ext_refs == NULL) |
0a1b45a2 | 4495 | return false; |
046b007d TG |
4496 | |
4497 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
0a1b45a2 | 4498 | return false; |
046b007d TG |
4499 | |
4500 | for (i = 0; i < cmd->nextrefsyms; i++) | |
07d6d2b8 AM |
4501 | { |
4502 | unsigned char raw[4]; | |
4503 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
4504 | ||
4505 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) | |
0a1b45a2 | 4506 | return false; |
07d6d2b8 AM |
4507 | |
4508 | /* Fields isym and flags are written as bit-fields, thus we need | |
4509 | a specific processing for endianness. */ | |
4510 | v = bfd_h_get_32 (abfd, raw); | |
4511 | if (bfd_big_endian (abfd)) | |
4512 | { | |
4513 | ref->isym = (v >> 8) & 0xffffff; | |
4514 | ref->flags = v & 0xff; | |
4515 | } | |
4516 | else | |
4517 | { | |
4518 | ref->isym = v & 0xffffff; | |
4519 | ref->flags = (v >> 24) & 0xff; | |
4520 | } | |
4521 | } | |
046b007d | 4522 | } |
3af9a47b | 4523 | |
b32e07d7 | 4524 | if (mdata->dysymtab) |
0a1b45a2 | 4525 | return false; |
b32e07d7 TG |
4526 | mdata->dysymtab = cmd; |
4527 | ||
0a1b45a2 | 4528 | return true; |
3af9a47b NC |
4529 | } |
4530 | ||
0a1b45a2 | 4531 | static bool |
a4425a57 AM |
4532 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command, |
4533 | ufile_ptr filesize) | |
3af9a47b | 4534 | { |
046b007d TG |
4535 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
4536 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 4537 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
4538 | |
4539 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
4540 | ||
3e6aa775 | 4541 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4542 | return false; |
47daa70f | 4543 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4544 | return false; |
a95a4550 | 4545 | |
46d1c23b TG |
4546 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
4547 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
4548 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
4549 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
4550 | symtab->symbols = NULL; |
4551 | symtab->strtab = NULL; | |
3af9a47b | 4552 | |
a4425a57 AM |
4553 | if (symtab->symoff > filesize |
4554 | || symtab->nsyms > (filesize - symtab->symoff) / BFD_MACH_O_NLIST_SIZE | |
4555 | || symtab->stroff > filesize | |
4556 | || symtab->strsize > filesize - symtab->stroff) | |
4557 | { | |
4558 | bfd_set_error (bfd_error_file_truncated); | |
0a1b45a2 | 4559 | return false; |
a4425a57 AM |
4560 | } |
4561 | ||
046b007d | 4562 | if (symtab->nsyms != 0) |
15e1c58a TG |
4563 | abfd->flags |= HAS_SYMS; |
4564 | ||
046b007d | 4565 | if (mdata->symtab) |
0a1b45a2 | 4566 | return false; |
046b007d | 4567 | mdata->symtab = symtab; |
0a1b45a2 | 4568 | return true; |
3af9a47b NC |
4569 | } |
4570 | ||
0a1b45a2 | 4571 | static bool |
ab273af8 | 4572 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
4573 | { |
4574 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
4575 | |
4576 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
4577 | ||
3e6aa775 | 4578 | if (command->len < 16 + 8) |
0a1b45a2 | 4579 | return false; |
47daa70f | 4580 | if (bfd_bread (cmd->uuid, 16, abfd) != 16) |
0a1b45a2 | 4581 | return false; |
15e1c58a | 4582 | |
0a1b45a2 | 4583 | return true; |
15e1c58a TG |
4584 | } |
4585 | ||
0a1b45a2 | 4586 | static bool |
ab273af8 | 4587 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4588 | { |
4589 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 4590 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 4591 | |
3e6aa775 | 4592 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4593 | return false; |
47daa70f | 4594 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4595 | return false; |
046b007d | 4596 | |
46d1c23b TG |
4597 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
4598 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
0a1b45a2 | 4599 | return true; |
046b007d TG |
4600 | } |
4601 | ||
0a1b45a2 | 4602 | static bool |
ab273af8 | 4603 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4604 | { |
4605 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 4606 | struct mach_o_str_command_external raw; |
046b007d TG |
4607 | unsigned long off; |
4608 | ||
3e6aa775 | 4609 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4610 | return false; |
47daa70f | 4611 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4612 | return false; |
046b007d | 4613 | |
46d1c23b | 4614 | off = bfd_get_32 (abfd, raw.str); |
3e6aa775 | 4615 | if (off > command->len) |
0a1b45a2 | 4616 | return false; |
3e6aa775 | 4617 | |
046b007d TG |
4618 | cmd->stroff = command->offset + off; |
4619 | cmd->str_len = command->len - off; | |
806470a2 AM |
4620 | cmd->str = (char *) bfd_mach_o_alloc_and_read (abfd, cmd->stroff, |
4621 | cmd->str_len); | |
4622 | return cmd->str != NULL; | |
c9ffd2ea TG |
4623 | } |
4624 | ||
0a1b45a2 | 4625 | static bool |
c9ffd2ea TG |
4626 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd) |
4627 | { | |
4628 | /* Read rebase content. */ | |
4629 | if (cmd->rebase_content == NULL && cmd->rebase_size != 0) | |
4630 | { | |
2bb3687b AM |
4631 | cmd->rebase_content |
4632 | = bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size); | |
c9ffd2ea | 4633 | if (cmd->rebase_content == NULL) |
0a1b45a2 | 4634 | return false; |
c9ffd2ea TG |
4635 | } |
4636 | ||
4637 | /* Read bind content. */ | |
4638 | if (cmd->bind_content == NULL && cmd->bind_size != 0) | |
4639 | { | |
2bb3687b AM |
4640 | cmd->bind_content |
4641 | = bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size); | |
c9ffd2ea | 4642 | if (cmd->bind_content == NULL) |
0a1b45a2 | 4643 | return false; |
c9ffd2ea TG |
4644 | } |
4645 | ||
4646 | /* Read weak bind content. */ | |
4647 | if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0) | |
4648 | { | |
4649 | cmd->weak_bind_content = bfd_mach_o_alloc_and_read | |
4650 | (abfd, cmd->weak_bind_off, cmd->weak_bind_size); | |
4651 | if (cmd->weak_bind_content == NULL) | |
0a1b45a2 | 4652 | return false; |
c9ffd2ea TG |
4653 | } |
4654 | ||
4655 | /* Read lazy bind content. */ | |
4656 | if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0) | |
4657 | { | |
4658 | cmd->lazy_bind_content = bfd_mach_o_alloc_and_read | |
4659 | (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size); | |
4660 | if (cmd->lazy_bind_content == NULL) | |
0a1b45a2 | 4661 | return false; |
c9ffd2ea TG |
4662 | } |
4663 | ||
4664 | /* Read export content. */ | |
4665 | if (cmd->export_content == NULL && cmd->export_size != 0) | |
4666 | { | |
4667 | cmd->export_content = bfd_mach_o_alloc_and_read | |
4668 | (abfd, cmd->export_off, cmd->export_size); | |
4669 | if (cmd->export_content == NULL) | |
0a1b45a2 | 4670 | return false; |
c9ffd2ea TG |
4671 | } |
4672 | ||
0a1b45a2 | 4673 | return true; |
c9ffd2ea TG |
4674 | } |
4675 | ||
0a1b45a2 | 4676 | static bool |
ab273af8 | 4677 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
4678 | { |
4679 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 4680 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 4681 | |
3e6aa775 | 4682 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4683 | return false; |
47daa70f | 4684 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4685 | return false; |
ad86f1fb | 4686 | |
46d1c23b TG |
4687 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
4688 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
c9ffd2ea | 4689 | cmd->rebase_content = NULL; |
46d1c23b TG |
4690 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); |
4691 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
c9ffd2ea | 4692 | cmd->bind_content = NULL; |
46d1c23b TG |
4693 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); |
4694 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
c9ffd2ea | 4695 | cmd->weak_bind_content = NULL; |
46d1c23b TG |
4696 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); |
4697 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
c9ffd2ea | 4698 | cmd->lazy_bind_content = NULL; |
46d1c23b TG |
4699 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); |
4700 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
c9ffd2ea | 4701 | cmd->export_content = NULL; |
0a1b45a2 | 4702 | return true; |
ad86f1fb TG |
4703 | } |
4704 | ||
0a1b45a2 | 4705 | static bool |
edbdea0e TG |
4706 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) |
4707 | { | |
4708 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
4709 | struct mach_o_version_min_command_external raw; | |
edbdea0e | 4710 | |
3e6aa775 | 4711 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4712 | return false; |
47daa70f | 4713 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4714 | return false; |
edbdea0e | 4715 | |
fc7b364a RB |
4716 | cmd->version = bfd_get_32 (abfd, raw.version); |
4717 | cmd->sdk = bfd_get_32 (abfd, raw.sdk); | |
0a1b45a2 | 4718 | return true; |
edbdea0e TG |
4719 | } |
4720 | ||
0a1b45a2 | 4721 | static bool |
fc55a902 TG |
4722 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) |
4723 | { | |
4724 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4725 | struct mach_o_encryption_info_command_external raw; | |
4726 | ||
3e6aa775 | 4727 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4728 | return false; |
47daa70f | 4729 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4730 | return false; |
47daa70f TG |
4731 | |
4732 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4733 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4734 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
0a1b45a2 | 4735 | return true; |
47daa70f TG |
4736 | } |
4737 | ||
0a1b45a2 | 4738 | static bool |
47daa70f TG |
4739 | bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command) |
4740 | { | |
4741 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4742 | struct mach_o_encryption_info_64_command_external raw; | |
4743 | ||
3e6aa775 | 4744 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4745 | return false; |
47daa70f | 4746 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4747 | return false; |
fc55a902 TG |
4748 | |
4749 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4750 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4751 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
0a1b45a2 | 4752 | return true; |
fc55a902 TG |
4753 | } |
4754 | ||
0a1b45a2 | 4755 | static bool |
1778ad74 TG |
4756 | bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command) |
4757 | { | |
4758 | bfd_mach_o_main_command *cmd = &command->command.main; | |
4759 | struct mach_o_entry_point_command_external raw; | |
4760 | ||
3e6aa775 | 4761 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4762 | return false; |
47daa70f | 4763 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4764 | return false; |
1778ad74 TG |
4765 | |
4766 | cmd->entryoff = bfd_get_64 (abfd, raw.entryoff); | |
4767 | cmd->stacksize = bfd_get_64 (abfd, raw.stacksize); | |
0a1b45a2 | 4768 | return true; |
1778ad74 TG |
4769 | } |
4770 | ||
0a1b45a2 | 4771 | static bool |
1778ad74 TG |
4772 | bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command) |
4773 | { | |
4774 | bfd_mach_o_source_version_command *cmd = &command->command.source_version; | |
4775 | struct mach_o_source_version_command_external raw; | |
4776 | bfd_uint64_t ver; | |
4777 | ||
3e6aa775 | 4778 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4779 | return false; |
47daa70f | 4780 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4781 | return false; |
1778ad74 TG |
4782 | |
4783 | ver = bfd_get_64 (abfd, raw.version); | |
4784 | /* Note: we use a serie of shift to avoid shift > 32 (for which gcc | |
4785 | generates warnings) in case of the host doesn't support 64 bit | |
4786 | integers. */ | |
4787 | cmd->e = ver & 0x3ff; | |
4788 | ver >>= 10; | |
4789 | cmd->d = ver & 0x3ff; | |
4790 | ver >>= 10; | |
4791 | cmd->c = ver & 0x3ff; | |
4792 | ver >>= 10; | |
4793 | cmd->b = ver & 0x3ff; | |
4794 | ver >>= 10; | |
4795 | cmd->a = ver & 0xffffff; | |
0a1b45a2 | 4796 | return true; |
1778ad74 TG |
4797 | } |
4798 | ||
0a1b45a2 | 4799 | static bool |
fc7b364a RB |
4800 | bfd_mach_o_read_note (bfd *abfd, bfd_mach_o_load_command *command) |
4801 | { | |
4802 | bfd_mach_o_note_command *cmd = &command->command.note; | |
4803 | struct mach_o_note_command_external raw; | |
4804 | ||
3e6aa775 | 4805 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4806 | return false; |
fc7b364a | 4807 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4808 | return false; |
fc7b364a RB |
4809 | |
4810 | memcpy (cmd->data_owner, raw.data_owner, 16); | |
4811 | cmd->offset = bfd_get_64 (abfd, raw.offset); | |
4812 | cmd->size = bfd_get_64 (abfd, raw.size); | |
0a1b45a2 | 4813 | return true; |
fc7b364a RB |
4814 | } |
4815 | ||
0a1b45a2 | 4816 | static bool |
fc7b364a RB |
4817 | bfd_mach_o_read_build_version (bfd *abfd, bfd_mach_o_load_command *command) |
4818 | { | |
4819 | bfd_mach_o_build_version_command *cmd = &command->command.build_version; | |
4820 | struct mach_o_build_version_command_external raw; | |
4821 | ||
3e6aa775 | 4822 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4823 | return false; |
fc7b364a | 4824 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4825 | return false; |
fc7b364a RB |
4826 | |
4827 | cmd->platform = bfd_get_32 (abfd, raw.platform); | |
4828 | cmd->minos = bfd_get_32 (abfd, raw.minos); | |
4829 | cmd->sdk = bfd_get_32 (abfd, raw.sdk); | |
4830 | cmd->ntools = bfd_get_32 (abfd, raw.ntools); | |
0a1b45a2 | 4831 | return true; |
fc7b364a RB |
4832 | } |
4833 | ||
0a1b45a2 | 4834 | static bool |
ab273af8 | 4835 | bfd_mach_o_read_segment (bfd *abfd, |
07d6d2b8 AM |
4836 | bfd_mach_o_load_command *command, |
4837 | unsigned int wide) | |
3af9a47b | 4838 | { |
3af9a47b NC |
4839 | bfd_mach_o_segment_command *seg = &command->command.segment; |
4840 | unsigned long i; | |
a95a4550 | 4841 | |
1e8a024a TG |
4842 | if (wide) |
4843 | { | |
46d1c23b TG |
4844 | struct mach_o_segment_command_64_external raw; |
4845 | ||
1e8a024a | 4846 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 4847 | |
3e6aa775 | 4848 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4849 | return false; |
47daa70f | 4850 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4851 | return false; |
3af9a47b | 4852 | |
46d1c23b | 4853 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4854 | seg->segname[16] = '\0'; |
1e8a024a | 4855 | |
46d1c23b TG |
4856 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
4857 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
4858 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
4859 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
4860 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4861 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4862 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4863 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
4864 | } |
4865 | else | |
4866 | { | |
46d1c23b TG |
4867 | struct mach_o_segment_command_32_external raw; |
4868 | ||
1e8a024a TG |
4869 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
4870 | ||
3e6aa775 | 4871 | if (command->len < sizeof (raw) + 8) |
0a1b45a2 | 4872 | return false; |
47daa70f | 4873 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
0a1b45a2 | 4874 | return false; |
1e8a024a | 4875 | |
46d1c23b | 4876 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4877 | seg->segname[16] = '\0'; |
1e8a024a | 4878 | |
46d1c23b TG |
4879 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
4880 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
4881 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
4882 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
4883 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4884 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4885 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4886 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 4887 | } |
9d4b6009 TG |
4888 | seg->sect_head = NULL; |
4889 | seg->sect_tail = NULL; | |
3af9a47b | 4890 | |
f1bde64c | 4891 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 4892 | { |
f1bde64c | 4893 | asection *sec; |
a95a4550 | 4894 | |
47daa70f | 4895 | sec = bfd_mach_o_read_section (abfd, seg->initprot, wide); |
f1bde64c | 4896 | if (sec == NULL) |
0a1b45a2 | 4897 | return false; |
f1bde64c | 4898 | |
c9ffd2ea TG |
4899 | bfd_mach_o_append_section_to_segment |
4900 | (seg, bfd_mach_o_get_mach_o_section (sec)); | |
3af9a47b NC |
4901 | } |
4902 | ||
0a1b45a2 | 4903 | return true; |
3af9a47b NC |
4904 | } |
4905 | ||
0a1b45a2 | 4906 | static bool |
ab273af8 | 4907 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4908 | { |
ab273af8 | 4909 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
4910 | } |
4911 | ||
0a1b45a2 | 4912 | static bool |
ab273af8 | 4913 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4914 | { |
ab273af8 | 4915 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
4916 | } |
4917 | ||
0a1b45a2 | 4918 | static bool |
a4425a57 AM |
4919 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command, |
4920 | ufile_ptr filesize) | |
3af9a47b | 4921 | { |
47daa70f | 4922 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
46d1c23b TG |
4923 | struct mach_o_load_command_external raw; |
4924 | unsigned int cmd; | |
3af9a47b | 4925 | |
046b007d | 4926 | /* Read command type and length. */ |
47daa70f | 4927 | if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0 |
46d1c23b | 4928 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
0a1b45a2 | 4929 | return false; |
3af9a47b | 4930 | |
46d1c23b | 4931 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
3e6aa775 | 4932 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; |
63b4cc53 | 4933 | command->type_required = (cmd & BFD_MACH_O_LC_REQ_DYLD) != 0; |
46d1c23b | 4934 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); |
3e6aa775 | 4935 | if (command->len < 8 || command->len % 4 != 0) |
0a1b45a2 | 4936 | return false; |
3af9a47b NC |
4937 | |
4938 | switch (command->type) | |
4939 | { | |
4940 | case BFD_MACH_O_LC_SEGMENT: | |
452216ab | 4941 | if (!bfd_mach_o_read_segment_32 (abfd, command)) |
0a1b45a2 | 4942 | return false; |
1e8a024a TG |
4943 | break; |
4944 | case BFD_MACH_O_LC_SEGMENT_64: | |
452216ab | 4945 | if (!bfd_mach_o_read_segment_64 (abfd, command)) |
0a1b45a2 | 4946 | return false; |
3af9a47b NC |
4947 | break; |
4948 | case BFD_MACH_O_LC_SYMTAB: | |
a4425a57 | 4949 | if (!bfd_mach_o_read_symtab (abfd, command, filesize)) |
0a1b45a2 | 4950 | return false; |
3af9a47b NC |
4951 | break; |
4952 | case BFD_MACH_O_LC_SYMSEG: | |
4953 | break; | |
4954 | case BFD_MACH_O_LC_THREAD: | |
4955 | case BFD_MACH_O_LC_UNIXTHREAD: | |
452216ab | 4956 | if (!bfd_mach_o_read_thread (abfd, command)) |
0a1b45a2 | 4957 | return false; |
3af9a47b NC |
4958 | break; |
4959 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
4960 | case BFD_MACH_O_LC_ID_DYLINKER: | |
10be66a4 | 4961 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
452216ab | 4962 | if (!bfd_mach_o_read_dylinker (abfd, command)) |
0a1b45a2 | 4963 | return false; |
3af9a47b NC |
4964 | break; |
4965 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4966 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
3af9a47b NC |
4967 | case BFD_MACH_O_LC_ID_DYLIB: |
4968 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 4969 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4970 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
452216ab | 4971 | if (!bfd_mach_o_read_dylib (abfd, command)) |
0a1b45a2 | 4972 | return false; |
3af9a47b NC |
4973 | break; |
4974 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
452216ab | 4975 | if (!bfd_mach_o_read_prebound_dylib (abfd, command)) |
0a1b45a2 | 4976 | return false; |
3af9a47b NC |
4977 | break; |
4978 | case BFD_MACH_O_LC_LOADFVMLIB: | |
4979 | case BFD_MACH_O_LC_IDFVMLIB: | |
452216ab | 4980 | if (!bfd_mach_o_read_fvmlib (abfd, command)) |
0a1b45a2 | 4981 | return false; |
9f4a5bd1 | 4982 | break; |
3af9a47b NC |
4983 | case BFD_MACH_O_LC_IDENT: |
4984 | case BFD_MACH_O_LC_FVMFILE: | |
4985 | case BFD_MACH_O_LC_PREPAGE: | |
4986 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 4987 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 4988 | break; |
3af9a47b | 4989 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
4990 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
4991 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
4992 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 4993 | case BFD_MACH_O_LC_RPATH: |
452216ab | 4994 | if (!bfd_mach_o_read_str (abfd, command)) |
0a1b45a2 | 4995 | return false; |
3af9a47b NC |
4996 | break; |
4997 | case BFD_MACH_O_LC_DYSYMTAB: | |
a4425a57 | 4998 | if (!bfd_mach_o_read_dysymtab (abfd, command, filesize)) |
0a1b45a2 | 4999 | return false; |
3af9a47b | 5000 | break; |
3af9a47b | 5001 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
452216ab | 5002 | if (!bfd_mach_o_read_prebind_cksum (abfd, command)) |
0a1b45a2 | 5003 | return false; |
7a79c514 TG |
5004 | break; |
5005 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
452216ab | 5006 | if (!bfd_mach_o_read_twolevel_hints (abfd, command)) |
0a1b45a2 | 5007 | return false; |
3af9a47b | 5008 | break; |
15e1c58a | 5009 | case BFD_MACH_O_LC_UUID: |
452216ab | 5010 | if (!bfd_mach_o_read_uuid (abfd, command)) |
0a1b45a2 | 5011 | return false; |
15e1c58a TG |
5012 | break; |
5013 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 5014 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 5015 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
1778ad74 TG |
5016 | case BFD_MACH_O_LC_DATA_IN_CODE: |
5017 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: | |
47daa70f | 5018 | case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT: |
d768f160 SJ |
5019 | case BFD_MACH_O_LC_DYLD_EXPORTS_TRIE: |
5020 | case BFD_MACH_O_LC_DYLD_CHAINED_FIXUPS: | |
452216ab | 5021 | if (!bfd_mach_o_read_linkedit (abfd, command)) |
0a1b45a2 | 5022 | return false; |
15e1c58a | 5023 | break; |
fc55a902 TG |
5024 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
5025 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
0a1b45a2 | 5026 | return false; |
fc55a902 | 5027 | break; |
47daa70f TG |
5028 | case BFD_MACH_O_LC_ENCRYPTION_INFO_64: |
5029 | if (!bfd_mach_o_read_encryption_info_64 (abfd, command)) | |
0a1b45a2 | 5030 | return false; |
47daa70f | 5031 | break; |
ad86f1fb | 5032 | case BFD_MACH_O_LC_DYLD_INFO: |
452216ab | 5033 | if (!bfd_mach_o_read_dyld_info (abfd, command)) |
0a1b45a2 | 5034 | return false; |
ad86f1fb | 5035 | break; |
edbdea0e TG |
5036 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
5037 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
47daa70f | 5038 | case BFD_MACH_O_LC_VERSION_MIN_WATCHOS: |
fc7b364a | 5039 | case BFD_MACH_O_LC_VERSION_MIN_TVOS: |
edbdea0e | 5040 | if (!bfd_mach_o_read_version_min (abfd, command)) |
0a1b45a2 | 5041 | return false; |
edbdea0e | 5042 | break; |
1778ad74 TG |
5043 | case BFD_MACH_O_LC_MAIN: |
5044 | if (!bfd_mach_o_read_main (abfd, command)) | |
0a1b45a2 | 5045 | return false; |
1778ad74 TG |
5046 | break; |
5047 | case BFD_MACH_O_LC_SOURCE_VERSION: | |
5048 | if (!bfd_mach_o_read_source_version (abfd, command)) | |
0a1b45a2 | 5049 | return false; |
1778ad74 | 5050 | break; |
ddea148b | 5051 | case BFD_MACH_O_LC_LINKER_OPTIONS: |
fc7b364a RB |
5052 | break; |
5053 | case BFD_MACH_O_LC_NOTE: | |
5054 | if (!bfd_mach_o_read_note (abfd, command)) | |
0a1b45a2 | 5055 | return false; |
fc7b364a | 5056 | break; |
ddea148b | 5057 | case BFD_MACH_O_LC_BUILD_VERSION: |
fc7b364a | 5058 | if (!bfd_mach_o_read_build_version (abfd, command)) |
0a1b45a2 | 5059 | return false; |
ddea148b | 5060 | break; |
3af9a47b | 5061 | default: |
86eafac0 | 5062 | command->len = 0; |
871b3ab2 | 5063 | _bfd_error_handler (_("%pB: unknown load command %#x"), |
d42c267e | 5064 | abfd, command->type); |
0a1b45a2 | 5065 | return false; |
3af9a47b NC |
5066 | } |
5067 | ||
0a1b45a2 | 5068 | return true; |
3af9a47b NC |
5069 | } |
5070 | ||
0a1b45a2 | 5071 | static bool |
116c20d2 | 5072 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 5073 | { |
046b007d | 5074 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea | 5075 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5076 | long csect = 0; |
1f4361a7 | 5077 | size_t amt; |
a95a4550 | 5078 | |
15e1c58a | 5079 | /* Count total number of sections. */ |
3af9a47b NC |
5080 | mdata->nsects = 0; |
5081 | ||
c9ffd2ea | 5082 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5083 | { |
c9ffd2ea TG |
5084 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
5085 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 5086 | { |
c9ffd2ea | 5087 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
e84d6fca | 5088 | |
3af9a47b NC |
5089 | mdata->nsects += seg->nsects; |
5090 | } | |
5091 | } | |
5092 | ||
15e1c58a | 5093 | /* Allocate sections array. */ |
1f4361a7 AM |
5094 | if (_bfd_mul_overflow (mdata->nsects, sizeof (bfd_mach_o_section *), &amt)) |
5095 | { | |
5096 | bfd_set_error (bfd_error_file_too_big); | |
0a1b45a2 | 5097 | return false; |
1f4361a7 AM |
5098 | } |
5099 | mdata->sections = bfd_alloc (abfd, amt); | |
96d3b80f | 5100 | if (mdata->sections == NULL && mdata->nsects != 0) |
0a1b45a2 | 5101 | return false; |
15e1c58a TG |
5102 | |
5103 | /* Fill the array. */ | |
3af9a47b NC |
5104 | csect = 0; |
5105 | ||
c9ffd2ea | 5106 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5107 | { |
c9ffd2ea TG |
5108 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
5109 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 5110 | { |
c9ffd2ea | 5111 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
07d6d2b8 | 5112 | bfd_mach_o_section *sec; |
3af9a47b NC |
5113 | |
5114 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); | |
5115 | ||
07d6d2b8 | 5116 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
f1bde64c | 5117 | mdata->sections[csect++] = sec; |
3af9a47b NC |
5118 | } |
5119 | } | |
0a1b45a2 | 5120 | return true; |
3af9a47b NC |
5121 | } |
5122 | ||
0a1b45a2 | 5123 | static bool |
116c20d2 | 5124 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 5125 | { |
046b007d | 5126 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
5127 | bfd_mach_o_thread_command *thr = NULL; |
5128 | bfd_mach_o_load_command *cmd; | |
3af9a47b NC |
5129 | unsigned long i; |
5130 | ||
c9ffd2ea TG |
5131 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
5132 | if (cmd->type == BFD_MACH_O_LC_THREAD | |
5133 | || cmd->type == BFD_MACH_O_LC_UNIXTHREAD) | |
afbb9e17 | 5134 | { |
07d6d2b8 AM |
5135 | thr = &cmd->command.thread; |
5136 | break; | |
afbb9e17 | 5137 | } |
c9ffd2ea | 5138 | else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1) |
c0fd7846 | 5139 | { |
c9ffd2ea | 5140 | bfd_mach_o_main_command *main_cmd = &cmd->command.main; |
c0fd7846 | 5141 | bfd_mach_o_section *text_sect = mdata->sections[0]; |
c9ffd2ea | 5142 | |
c0fd7846 TG |
5143 | if (text_sect) |
5144 | { | |
5145 | abfd->start_address = main_cmd->entryoff | |
5146 | + (text_sect->addr - text_sect->offset); | |
0a1b45a2 | 5147 | return true; |
c0fd7846 TG |
5148 | } |
5149 | } | |
3af9a47b | 5150 | |
5ee43bc4 | 5151 | /* An object file has no start address, so do not fail if not found. */ |
c9ffd2ea | 5152 | if (thr == NULL) |
0a1b45a2 | 5153 | return true; |
3af9a47b | 5154 | |
afbb9e17 | 5155 | /* FIXME: create a subtarget hook ? */ |
c9ffd2ea | 5156 | for (i = 0; i < thr->nflavours; i++) |
3af9a47b | 5157 | { |
a95a4550 | 5158 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
c9ffd2ea | 5159 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
5160 | { |
5161 | unsigned char buf[4]; | |
5162 | ||
c9ffd2ea | 5163 | if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0 |
07d6d2b8 | 5164 | || bfd_bread (buf, 4, abfd) != 4) |
0a1b45a2 | 5165 | return false; |
3af9a47b NC |
5166 | |
5167 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
5168 | } | |
a95a4550 | 5169 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
c9ffd2ea | 5170 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3af9a47b NC |
5171 | { |
5172 | unsigned char buf[4]; | |
5173 | ||
c9ffd2ea | 5174 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
07d6d2b8 | 5175 | || bfd_bread (buf, 4, abfd) != 4) |
0a1b45a2 | 5176 | return false; |
3af9a47b NC |
5177 | |
5178 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
5179 | } | |
1e8a024a | 5180 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
07d6d2b8 AM |
5181 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
5182 | { | |
5183 | unsigned char buf[8]; | |
1e8a024a | 5184 | |
07d6d2b8 AM |
5185 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
5186 | || bfd_bread (buf, 8, abfd) != 8) | |
0a1b45a2 | 5187 | return false; |
1e8a024a | 5188 | |
07d6d2b8 AM |
5189 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5190 | } | |
1e8a024a | 5191 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) |
07d6d2b8 AM |
5192 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) |
5193 | { | |
5194 | unsigned char buf[8]; | |
1e8a024a | 5195 | |
07d6d2b8 AM |
5196 | if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
5197 | || bfd_bread (buf, 8, abfd) != 8) | |
0a1b45a2 | 5198 | return false; |
1e8a024a | 5199 | |
07d6d2b8 AM |
5200 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5201 | } | |
3af9a47b NC |
5202 | } |
5203 | ||
0a1b45a2 | 5204 | return true; |
3af9a47b NC |
5205 | } |
5206 | ||
0a1b45a2 | 5207 | bool |
42fa0891 | 5208 | bfd_mach_o_set_arch_mach (bfd *abfd, |
07d6d2b8 AM |
5209 | enum bfd_architecture arch, |
5210 | unsigned long machine) | |
42fa0891 TG |
5211 | { |
5212 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
5213 | ||
5214 | /* If this isn't the right architecture for this backend, and this | |
5215 | isn't the generic backend, fail. */ | |
5216 | if (arch != bed->arch | |
5217 | && arch != bfd_arch_unknown | |
5218 | && bed->arch != bfd_arch_unknown) | |
0a1b45a2 | 5219 | return false; |
42fa0891 TG |
5220 | |
5221 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
5222 | } | |
5223 | ||
0a1b45a2 | 5224 | static bool |
116c20d2 NC |
5225 | bfd_mach_o_scan (bfd *abfd, |
5226 | bfd_mach_o_header *header, | |
5227 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
5228 | { |
5229 | unsigned int i; | |
4bb7a87e JB |
5230 | enum bfd_architecture cpu_type; |
5231 | unsigned long cpu_subtype; | |
1e8a024a TG |
5232 | unsigned int hdrsize; |
5233 | ||
c2f09c75 | 5234 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 5235 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 5236 | |
3af9a47b | 5237 | mdata->header = *header; |
3af9a47b | 5238 | |
154a1ee5 | 5239 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
5240 | switch (header->filetype) |
5241 | { | |
5242 | case BFD_MACH_O_MH_OBJECT: | |
5243 | abfd->flags |= HAS_RELOC; | |
5244 | break; | |
5245 | case BFD_MACH_O_MH_EXECUTE: | |
5246 | abfd->flags |= EXEC_P; | |
5247 | break; | |
5248 | case BFD_MACH_O_MH_DYLIB: | |
5249 | case BFD_MACH_O_MH_BUNDLE: | |
5250 | abfd->flags |= DYNAMIC; | |
5251 | break; | |
5252 | } | |
5253 | ||
3af9a47b NC |
5254 | abfd->tdata.mach_o_data = mdata; |
5255 | ||
e84d6fca | 5256 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
4bb7a87e JB |
5257 | &cpu_type, &cpu_subtype); |
5258 | if (cpu_type == bfd_arch_unknown) | |
3af9a47b | 5259 | { |
4eca0228 | 5260 | _bfd_error_handler |
695344c0 | 5261 | /* xgettext:c-format */ |
07d6d2b8 AM |
5262 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), |
5263 | header->cputype, header->cpusubtype); | |
0a1b45a2 | 5264 | return false; |
3af9a47b NC |
5265 | } |
5266 | ||
4bb7a87e | 5267 | bfd_set_arch_mach (abfd, cpu_type, cpu_subtype); |
a95a4550 | 5268 | |
3af9a47b NC |
5269 | if (header->ncmds != 0) |
5270 | { | |
c9ffd2ea | 5271 | bfd_mach_o_load_command *cmd; |
1f4361a7 | 5272 | size_t amt; |
a4425a57 AM |
5273 | ufile_ptr filesize = bfd_get_file_size (abfd); |
5274 | ||
5275 | if (filesize == 0) | |
5276 | filesize = (ufile_ptr) -1; | |
c9ffd2ea TG |
5277 | |
5278 | mdata->first_command = NULL; | |
5279 | mdata->last_command = NULL; | |
64d29018 | 5280 | |
a4425a57 AM |
5281 | if (header->ncmds > (filesize - hdrsize) / BFD_MACH_O_LC_SIZE) |
5282 | { | |
5283 | bfd_set_error (bfd_error_file_truncated); | |
0a1b45a2 | 5284 | return false; |
a4425a57 | 5285 | } |
1f4361a7 AM |
5286 | if (_bfd_mul_overflow (header->ncmds, |
5287 | sizeof (bfd_mach_o_load_command), &amt)) | |
5288 | { | |
5289 | bfd_set_error (bfd_error_file_too_big); | |
0a1b45a2 | 5290 | return false; |
1f4361a7 AM |
5291 | } |
5292 | cmd = bfd_alloc (abfd, amt); | |
c9ffd2ea | 5293 | if (cmd == NULL) |
0a1b45a2 | 5294 | return false; |
a95a4550 | 5295 | |
3af9a47b NC |
5296 | for (i = 0; i < header->ncmds; i++) |
5297 | { | |
c9ffd2ea TG |
5298 | bfd_mach_o_load_command *cur = &cmd[i]; |
5299 | ||
5300 | bfd_mach_o_append_command (abfd, cur); | |
3af9a47b NC |
5301 | |
5302 | if (i == 0) | |
1e8a024a | 5303 | cur->offset = hdrsize; |
3af9a47b NC |
5304 | else |
5305 | { | |
c9ffd2ea | 5306 | bfd_mach_o_load_command *prev = &cmd[i - 1]; |
3af9a47b NC |
5307 | cur->offset = prev->offset + prev->len; |
5308 | } | |
5309 | ||
a4425a57 | 5310 | if (!bfd_mach_o_read_command (abfd, cur, filesize)) |
0a1b45a2 | 5311 | return false; |
a95a4550 | 5312 | } |
3af9a47b NC |
5313 | } |
5314 | ||
c0fd7846 | 5315 | /* Sections should be flatten before scanning start address. */ |
96d3b80f | 5316 | if (!bfd_mach_o_flatten_sections (abfd)) |
0a1b45a2 | 5317 | return false; |
c0fd7846 | 5318 | if (!bfd_mach_o_scan_start_address (abfd)) |
0a1b45a2 | 5319 | return false; |
3af9a47b | 5320 | |
0a1b45a2 | 5321 | return true; |
3af9a47b NC |
5322 | } |
5323 | ||
0a1b45a2 | 5324 | bool |
154a1ee5 | 5325 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
5326 | { |
5327 | bfd_mach_o_data_struct *mdata = NULL; | |
5328 | ||
b30a5d18 | 5329 | mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 5330 | if (mdata == NULL) |
0a1b45a2 | 5331 | return false; |
3af9a47b NC |
5332 | abfd->tdata.mach_o_data = mdata; |
5333 | ||
5334 | mdata->header.magic = 0; | |
5335 | mdata->header.cputype = 0; | |
5336 | mdata->header.cpusubtype = 0; | |
5337 | mdata->header.filetype = 0; | |
5338 | mdata->header.ncmds = 0; | |
5339 | mdata->header.sizeofcmds = 0; | |
5340 | mdata->header.flags = 0; | |
5341 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
c9ffd2ea TG |
5342 | mdata->first_command = NULL; |
5343 | mdata->last_command = NULL; | |
3af9a47b NC |
5344 | mdata->nsects = 0; |
5345 | mdata->sections = NULL; | |
4434114c | 5346 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 5347 | |
0a1b45a2 | 5348 | return true; |
3af9a47b NC |
5349 | } |
5350 | ||
0a1b45a2 | 5351 | static bool |
42fa0891 TG |
5352 | bfd_mach_o_gen_mkobject (bfd *abfd) |
5353 | { | |
5354 | bfd_mach_o_data_struct *mdata; | |
5355 | ||
5356 | if (!bfd_mach_o_mkobject_init (abfd)) | |
0a1b45a2 | 5357 | return false; |
42fa0891 TG |
5358 | |
5359 | mdata = bfd_mach_o_get_data (abfd); | |
5360 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
5361 | mdata->header.cputype = 0; | |
5362 | mdata->header.cpusubtype = 0; | |
5363 | mdata->header.byteorder = abfd->xvec->byteorder; | |
5364 | mdata->header.version = 1; | |
5365 | ||
0a1b45a2 | 5366 | return true; |
42fa0891 TG |
5367 | } |
5368 | ||
cb001c0d | 5369 | bfd_cleanup |
154a1ee5 | 5370 | bfd_mach_o_header_p (bfd *abfd, |
47daa70f | 5371 | file_ptr hdr_off, |
4bb7a87e JB |
5372 | bfd_mach_o_filetype file_type, |
5373 | bfd_mach_o_cpu_type cpu_type) | |
3af9a47b NC |
5374 | { |
5375 | bfd_mach_o_header header; | |
c9ba0c87 | 5376 | bfd_mach_o_data_struct *mdata; |
3af9a47b | 5377 | |
47daa70f | 5378 | if (!bfd_mach_o_read_header (abfd, hdr_off, &header)) |
e84d6fca | 5379 | goto wrong; |
3af9a47b | 5380 | |
e84d6fca AM |
5381 | if (! (header.byteorder == BFD_ENDIAN_BIG |
5382 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 5383 | { |
d42c267e AM |
5384 | _bfd_error_handler (_("unknown header byte-order value %#x"), |
5385 | header.byteorder); | |
e84d6fca | 5386 | goto wrong; |
3af9a47b NC |
5387 | } |
5388 | ||
e84d6fca AM |
5389 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
5390 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
5391 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
5392 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
5393 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
5394 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
5395 | goto wrong; | |
3af9a47b | 5396 | |
154a1ee5 TG |
5397 | /* Check cputype and filetype. |
5398 | In case of wildcard, do not accept magics that are handled by existing | |
5399 | targets. */ | |
4bb7a87e | 5400 | if (cpu_type) |
154a1ee5 | 5401 | { |
4bb7a87e | 5402 | if (header.cputype != cpu_type) |
07d6d2b8 | 5403 | goto wrong; |
154a1ee5 | 5404 | } |
26954155 TG |
5405 | else |
5406 | { | |
5407 | #ifndef BFD64 | |
5408 | /* Do not recognize 64 architectures if not configured for 64bit targets. | |
5409 | This could happen only for generic targets. */ | |
5410 | if (mach_o_wide_p (&header)) | |
5411 | goto wrong; | |
5412 | #endif | |
5413 | } | |
b22161d6 | 5414 | |
4bb7a87e | 5415 | if (file_type) |
154a1ee5 | 5416 | { |
4bb7a87e | 5417 | if (header.filetype != file_type) |
07d6d2b8 | 5418 | goto wrong; |
154a1ee5 TG |
5419 | } |
5420 | else | |
5421 | { | |
5422 | switch (header.filetype) | |
07d6d2b8 AM |
5423 | { |
5424 | case BFD_MACH_O_MH_CORE: | |
5425 | /* Handled by core_p */ | |
5426 | goto wrong; | |
5427 | default: | |
5428 | break; | |
5429 | } | |
154a1ee5 TG |
5430 | } |
5431 | ||
c9ba0c87 AM |
5432 | mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata)); |
5433 | if (mdata == NULL) | |
e84d6fca | 5434 | goto fail; |
47daa70f | 5435 | mdata->hdr_offset = hdr_off; |
3af9a47b | 5436 | |
c9ba0c87 | 5437 | if (!bfd_mach_o_scan (abfd, &header, mdata)) |
e84d6fca | 5438 | goto wrong; |
a95a4550 | 5439 | |
cb001c0d | 5440 | return _bfd_no_cleanup; |
e84d6fca AM |
5441 | |
5442 | wrong: | |
5443 | bfd_set_error (bfd_error_wrong_format); | |
5444 | ||
5445 | fail: | |
e84d6fca | 5446 | return NULL; |
3af9a47b NC |
5447 | } |
5448 | ||
cb001c0d | 5449 | static bfd_cleanup |
154a1ee5 | 5450 | bfd_mach_o_gen_object_p (bfd *abfd) |
3af9a47b | 5451 | { |
47daa70f | 5452 | return bfd_mach_o_header_p (abfd, 0, 0, 0); |
154a1ee5 | 5453 | } |
e84d6fca | 5454 | |
cb001c0d | 5455 | static bfd_cleanup |
154a1ee5 TG |
5456 | bfd_mach_o_gen_core_p (bfd *abfd) |
5457 | { | |
47daa70f | 5458 | return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0); |
3af9a47b NC |
5459 | } |
5460 | ||
3cc27770 TG |
5461 | /* Return the base address of ABFD, ie the address at which the image is |
5462 | mapped. The possible initial pagezero is ignored. */ | |
5463 | ||
5464 | bfd_vma | |
5465 | bfd_mach_o_get_base_address (bfd *abfd) | |
5466 | { | |
5467 | bfd_mach_o_data_struct *mdata; | |
c9ffd2ea | 5468 | bfd_mach_o_load_command *cmd; |
3cc27770 TG |
5469 | |
5470 | /* Check for Mach-O. */ | |
5471 | if (!bfd_mach_o_valid (abfd)) | |
5472 | return 0; | |
5473 | mdata = bfd_mach_o_get_data (abfd); | |
5474 | ||
c9ffd2ea | 5475 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3cc27770 | 5476 | { |
3cc27770 TG |
5477 | if ((cmd->type == BFD_MACH_O_LC_SEGMENT |
5478 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64)) | |
5479 | { | |
5480 | struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment; | |
5481 | ||
5482 | if (segcmd->initprot != 0) | |
5483 | return segcmd->vmaddr; | |
5484 | } | |
5485 | } | |
5486 | return 0; | |
5487 | } | |
5488 | ||
3af9a47b NC |
5489 | typedef struct mach_o_fat_archentry |
5490 | { | |
5491 | unsigned long cputype; | |
5492 | unsigned long cpusubtype; | |
5493 | unsigned long offset; | |
5494 | unsigned long size; | |
5495 | unsigned long align; | |
3af9a47b NC |
5496 | } mach_o_fat_archentry; |
5497 | ||
5498 | typedef struct mach_o_fat_data_struct | |
5499 | { | |
5500 | unsigned long magic; | |
5501 | unsigned long nfat_arch; | |
5502 | mach_o_fat_archentry *archentries; | |
5503 | } mach_o_fat_data_struct; | |
5504 | ||
cb001c0d | 5505 | bfd_cleanup |
47daa70f | 5506 | bfd_mach_o_fat_archive_p (bfd *abfd) |
3af9a47b | 5507 | { |
e84d6fca | 5508 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 5509 | struct mach_o_fat_header_external hdr; |
3af9a47b | 5510 | unsigned long i; |
1f4361a7 | 5511 | size_t amt; |
3af9a47b | 5512 | |
c2f09c75 | 5513 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 5514 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 5515 | goto error; |
3af9a47b | 5516 | |
116c20d2 | 5517 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 5518 | if (adata == NULL) |
e84d6fca | 5519 | goto error; |
a95a4550 | 5520 | |
46d1c23b TG |
5521 | adata->magic = bfd_getb32 (hdr.magic); |
5522 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 5523 | if (adata->magic != 0xcafebabe) |
e84d6fca | 5524 | goto error; |
27cc28f9 AS |
5525 | /* Avoid matching Java bytecode files, which have the same magic number. |
5526 | In the Java bytecode file format this field contains the JVM version, | |
5527 | which starts at 43.0. */ | |
5528 | if (adata->nfat_arch > 30) | |
5529 | goto error; | |
3af9a47b | 5530 | |
1f4361a7 AM |
5531 | if (_bfd_mul_overflow (adata->nfat_arch, |
5532 | sizeof (mach_o_fat_archentry), &amt)) | |
5533 | { | |
5534 | bfd_set_error (bfd_error_file_too_big); | |
5535 | goto error; | |
5536 | } | |
5537 | adata->archentries = bfd_alloc (abfd, amt); | |
3af9a47b | 5538 | if (adata->archentries == NULL) |
e84d6fca | 5539 | goto error; |
3af9a47b NC |
5540 | |
5541 | for (i = 0; i < adata->nfat_arch; i++) | |
5542 | { | |
46d1c23b TG |
5543 | struct mach_o_fat_arch_external arch; |
5544 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 5545 | goto error; |
46d1c23b TG |
5546 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
5547 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
5548 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
5549 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
5550 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
5551 | } |
5552 | ||
5553 | abfd->tdata.mach_o_fat_data = adata; | |
64d29018 | 5554 | |
cb001c0d | 5555 | return _bfd_no_cleanup; |
e84d6fca AM |
5556 | |
5557 | error: | |
5558 | if (adata != NULL) | |
5559 | bfd_release (abfd, adata); | |
5560 | bfd_set_error (bfd_error_wrong_format); | |
5561 | return NULL; | |
3af9a47b NC |
5562 | } |
5563 | ||
a4e241ca TG |
5564 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
5565 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
5566 | Set arelt_data and origin fields too. */ | |
5567 | ||
0a1b45a2 | 5568 | static bool |
a4e241ca | 5569 | bfd_mach_o_fat_member_init (bfd *abfd, |
07d6d2b8 AM |
5570 | enum bfd_architecture arch_type, |
5571 | unsigned long arch_subtype, | |
5572 | mach_o_fat_archentry *entry) | |
a4e241ca TG |
5573 | { |
5574 | struct areltdata *areltdata; | |
5575 | /* Create the member filename. Use ARCH_NAME. */ | |
5576 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
7b958a48 | 5577 | const char *filename; |
a4e241ca TG |
5578 | |
5579 | if (ap) | |
5580 | { | |
5581 | /* Use the architecture name if known. */ | |
7b958a48 | 5582 | filename = bfd_set_filename (abfd, ap->printable_name); |
a4e241ca TG |
5583 | } |
5584 | else | |
5585 | { | |
5586 | /* Forge a uniq id. */ | |
7b958a48 AM |
5587 | char buf[2 + 8 + 1 + 2 + 8 + 1]; |
5588 | snprintf (buf, sizeof (buf), "0x%lx-0x%lx", | |
07d6d2b8 | 5589 | entry->cputype, entry->cpusubtype); |
7b958a48 | 5590 | filename = bfd_set_filename (abfd, buf); |
a4e241ca | 5591 | } |
7b958a48 | 5592 | if (!filename) |
0a1b45a2 | 5593 | return false; |
a4e241ca | 5594 | |
06e7acd7 | 5595 | areltdata = bfd_zmalloc (sizeof (struct areltdata)); |
90d92a63 | 5596 | if (areltdata == NULL) |
0a1b45a2 | 5597 | return false; |
a4e241ca TG |
5598 | areltdata->parsed_size = entry->size; |
5599 | abfd->arelt_data = areltdata; | |
5600 | abfd->iostream = NULL; | |
5601 | abfd->origin = entry->offset; | |
0a1b45a2 | 5602 | return true; |
a4e241ca TG |
5603 | } |
5604 | ||
3af9a47b | 5605 | bfd * |
47daa70f | 5606 | bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 5607 | { |
e84d6fca | 5608 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
5609 | mach_o_fat_archentry *entry = NULL; |
5610 | unsigned long i; | |
15e1c58a | 5611 | bfd *nbfd; |
15e1c58a TG |
5612 | enum bfd_architecture arch_type; |
5613 | unsigned long arch_subtype; | |
3af9a47b | 5614 | |
e84d6fca | 5615 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
5616 | BFD_ASSERT (adata != NULL); |
5617 | ||
5618 | /* Find index of previous entry. */ | |
5619 | if (prev == NULL) | |
a4e241ca TG |
5620 | { |
5621 | /* Start at first one. */ | |
5622 | i = 0; | |
5623 | } | |
3af9a47b NC |
5624 | else |
5625 | { | |
a4e241ca | 5626 | /* Find index of PREV. */ |
3af9a47b NC |
5627 | for (i = 0; i < adata->nfat_arch; i++) |
5628 | { | |
15e1c58a | 5629 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
5630 | break; |
5631 | } | |
5632 | ||
5633 | if (i == adata->nfat_arch) | |
5634 | { | |
5635 | /* Not found. */ | |
5636 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 5637 | return NULL; |
3af9a47b | 5638 | } |
a4e241ca TG |
5639 | |
5640 | /* Get next entry. */ | |
5641 | i++; | |
5642 | } | |
a95a4550 | 5643 | |
3af9a47b NC |
5644 | if (i >= adata->nfat_arch) |
5645 | { | |
5646 | bfd_set_error (bfd_error_no_more_archived_files); | |
5647 | return NULL; | |
5648 | } | |
5649 | ||
5650 | entry = &adata->archentries[i]; | |
15e1c58a TG |
5651 | nbfd = _bfd_new_bfd_contained_in (archive); |
5652 | if (nbfd == NULL) | |
5653 | return NULL; | |
5654 | ||
15e1c58a TG |
5655 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
5656 | &arch_type, &arch_subtype); | |
846b9259 | 5657 | |
90d92a63 AM |
5658 | if (!bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry)) |
5659 | { | |
5660 | bfd_close (nbfd); | |
5661 | return NULL; | |
5662 | } | |
a4e241ca | 5663 | |
846b9259 | 5664 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 5665 | |
15e1c58a | 5666 | return nbfd; |
3af9a47b NC |
5667 | } |
5668 | ||
15bbba8d TG |
5669 | /* Analogous to stat call. */ |
5670 | ||
5671 | static int | |
5672 | bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf) | |
5673 | { | |
5674 | if (abfd->arelt_data == NULL) | |
5675 | { | |
5676 | bfd_set_error (bfd_error_invalid_operation); | |
5677 | return -1; | |
5678 | } | |
5679 | ||
5680 | buf->st_mtime = 0; | |
5681 | buf->st_uid = 0; | |
5682 | buf->st_gid = 0; | |
5683 | buf->st_mode = 0644; | |
5684 | buf->st_size = arelt_size (abfd); | |
5685 | ||
5686 | return 0; | |
5687 | } | |
5688 | ||
846b9259 TG |
5689 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
5690 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
5691 | and ARCH, returns it. | |
5692 | In other case, returns NULL. | |
5693 | This function allows transparent uses of fat images. */ | |
a4e241ca | 5694 | |
846b9259 TG |
5695 | bfd * |
5696 | bfd_mach_o_fat_extract (bfd *abfd, | |
5697 | bfd_format format, | |
5698 | const bfd_arch_info_type *arch) | |
5699 | { | |
5700 | bfd *res; | |
5701 | mach_o_fat_data_struct *adata; | |
5702 | unsigned int i; | |
5703 | ||
5704 | if (bfd_check_format (abfd, format)) | |
5705 | { | |
5706 | if (bfd_get_arch_info (abfd) == arch) | |
5707 | return abfd; | |
5708 | return NULL; | |
5709 | } | |
5710 | if (!bfd_check_format (abfd, bfd_archive) | |
5711 | || abfd->xvec != &mach_o_fat_vec) | |
5712 | return NULL; | |
c2f09c75 | 5713 | |
846b9259 TG |
5714 | /* This is a Mach-O fat image. */ |
5715 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
5716 | BFD_ASSERT (adata != NULL); | |
5717 | ||
5718 | for (i = 0; i < adata->nfat_arch; i++) | |
5719 | { | |
5720 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
5721 | enum bfd_architecture cpu_type; | |
5722 | unsigned long cpu_subtype; | |
5723 | ||
5724 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
5725 | &cpu_type, &cpu_subtype); | |
5726 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
5727 | continue; | |
5728 | ||
5729 | /* The architecture is found. */ | |
5730 | res = _bfd_new_bfd_contained_in (abfd); | |
5731 | if (res == NULL) | |
5732 | return NULL; | |
5733 | ||
90d92a63 AM |
5734 | if (bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e) |
5735 | && bfd_check_format (res, format)) | |
846b9259 TG |
5736 | { |
5737 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
5738 | return res; | |
5739 | } | |
5740 | bfd_close (res); | |
5741 | return NULL; | |
5742 | } | |
5743 | ||
5744 | return NULL; | |
5745 | } | |
5746 | ||
0a1b45a2 | 5747 | static bool |
eac61af6 TT |
5748 | bfd_mach_o_fat_close_and_cleanup (bfd *abfd) |
5749 | { | |
5750 | _bfd_unlink_from_archive_parent (abfd); | |
0a1b45a2 | 5751 | return true; |
eac61af6 TT |
5752 | } |
5753 | ||
3af9a47b | 5754 | int |
116c20d2 NC |
5755 | bfd_mach_o_lookup_command (bfd *abfd, |
5756 | bfd_mach_o_load_command_type type, | |
5757 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 5758 | { |
c9ffd2ea TG |
5759 | struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
5760 | struct bfd_mach_o_load_command *cmd; | |
5761 | unsigned int num; | |
3af9a47b | 5762 | |
c9ffd2ea | 5763 | BFD_ASSERT (mdata != NULL); |
3af9a47b NC |
5764 | BFD_ASSERT (mcommand != NULL); |
5765 | ||
5766 | num = 0; | |
c9ffd2ea | 5767 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5768 | { |
3af9a47b NC |
5769 | if (cmd->type != type) |
5770 | continue; | |
5771 | ||
5772 | if (num == 0) | |
c9ffd2ea | 5773 | *mcommand = cmd; |
3af9a47b NC |
5774 | num++; |
5775 | } | |
5776 | ||
3af9a47b NC |
5777 | return num; |
5778 | } | |
5779 | ||
5780 | unsigned long | |
116c20d2 | 5781 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
5782 | { |
5783 | switch (type) | |
5784 | { | |
5785 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
5786 | return 0x04000000; | |
3af9a47b NC |
5787 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
5788 | return 0xc0000000; | |
5789 | case BFD_MACH_O_CPU_TYPE_I386: | |
5790 | return 0xc0000000; | |
5791 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
5792 | return 0xf0000000; | |
3af9a47b | 5793 | case BFD_MACH_O_CPU_TYPE_HPPA: |
e84d6fca | 5794 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
5795 | default: |
5796 | return 0; | |
5797 | } | |
5798 | } | |
5799 | ||
ab76eeaf IS |
5800 | /* The following two tables should be kept, as far as possible, in order of |
5801 | most frequently used entries to optimize their use from gas. */ | |
5802 | ||
c5012cd8 | 5803 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
5804 | { |
5805 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 5806 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
5807 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
5808 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
5809 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
5810 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 5811 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 5812 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
5813 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
5814 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
5815 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
5816 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 5817 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
5818 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
5819 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 5820 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
5821 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
5822 | { NULL, 0} | |
5823 | }; | |
5824 | ||
c5012cd8 | 5825 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 5826 | { |
ab76eeaf IS |
5827 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
5828 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
5829 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
5830 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 5831 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
5832 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
5833 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
5834 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
5835 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 5836 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 5837 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
5838 | { NULL, 0} |
5839 | }; | |
5840 | ||
a4551119 | 5841 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
5842 | |
5843 | unsigned int | |
ab76eeaf | 5844 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 5845 | { |
afbb9e17 | 5846 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 5847 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
5848 | |
5849 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
5850 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
5851 | { |
5852 | /* We found it... does the target support it? */ | |
5853 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
5854 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
5855 | return x->val; /* OK. */ | |
5856 | else | |
5857 | break; /* Not supported. */ | |
5858 | } | |
a4551119 TG |
5859 | /* Maximum section ID = 0xff. */ |
5860 | return 256; | |
53d58d96 TG |
5861 | } |
5862 | ||
5863 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
5864 | ||
5865 | unsigned int | |
5866 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
5867 | { | |
afbb9e17 | 5868 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
5869 | |
5870 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
5871 | if (strcmp (x->name, name) == 0) | |
5872 | return x->val; | |
5873 | return (unsigned int)-1; | |
5874 | } | |
5875 | ||
3af9a47b | 5876 | int |
116c20d2 NC |
5877 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
5878 | unsigned char **rbuf, | |
5879 | unsigned int *rlen) | |
3af9a47b | 5880 | { |
046b007d | 5881 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 5882 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
c9ffd2ea | 5883 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5884 | |
c9ffd2ea | 5885 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5886 | { |
c9ffd2ea | 5887 | bfd_mach_o_segment_command *seg; |
3af9a47b | 5888 | |
c9ffd2ea | 5889 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) |
3af9a47b NC |
5890 | continue; |
5891 | ||
c9ffd2ea | 5892 | seg = &cmd->command.segment; |
3af9a47b NC |
5893 | |
5894 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
5895 | { | |
5896 | unsigned long start = seg->fileoff; | |
5897 | unsigned long end = seg->fileoff + seg->filesize; | |
5898 | unsigned char *buf = bfd_malloc (1024); | |
5899 | unsigned long size = 1024; | |
5900 | ||
7a0fb7be NC |
5901 | if (buf == NULL) |
5902 | return -1; | |
3af9a47b NC |
5903 | for (;;) |
5904 | { | |
5905 | bfd_size_type nread = 0; | |
5906 | unsigned long offset; | |
5907 | int found_nonnull = 0; | |
5908 | ||
5909 | if (size > (end - start)) | |
5910 | size = (end - start); | |
5911 | ||
515ef31d NC |
5912 | buf = bfd_realloc_or_free (buf, size); |
5913 | if (buf == NULL) | |
5914 | return -1; | |
c2f09c75 TG |
5915 | |
5916 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
07d6d2b8 AM |
5917 | { |
5918 | free (buf); | |
5919 | return -1; | |
5920 | } | |
c2f09c75 | 5921 | |
3af9a47b | 5922 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 5923 | |
3af9a47b | 5924 | if (nread != size) |
515ef31d NC |
5925 | { |
5926 | free (buf); | |
5927 | return -1; | |
5928 | } | |
a95a4550 | 5929 | |
3af9a47b NC |
5930 | for (offset = 4; offset <= size; offset += 4) |
5931 | { | |
e84d6fca | 5932 | unsigned long val; |
3af9a47b | 5933 | |
e84d6fca | 5934 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
5935 | if (! found_nonnull) |
5936 | { | |
5937 | if (val != 0) | |
5938 | found_nonnull = 1; | |
5939 | } | |
5940 | else if (val == 0x0) | |
5941 | { | |
e84d6fca AM |
5942 | unsigned long bottom; |
5943 | unsigned long top; | |
3af9a47b | 5944 | |
e84d6fca AM |
5945 | bottom = seg->fileoff + seg->filesize - offset; |
5946 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b | 5947 | *rbuf = bfd_malloc (top - bottom); |
7a0fb7be NC |
5948 | if (*rbuf == NULL) |
5949 | return -1; | |
3af9a47b NC |
5950 | *rlen = top - bottom; |
5951 | ||
5952 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 5953 | free (buf); |
3af9a47b NC |
5954 | return 0; |
5955 | } | |
5956 | } | |
5957 | ||
5958 | if (size == (end - start)) | |
5959 | break; | |
5960 | ||
5961 | size *= 2; | |
5962 | } | |
515ef31d NC |
5963 | |
5964 | free (buf); | |
3af9a47b NC |
5965 | } |
5966 | } | |
5967 | ||
5968 | return -1; | |
5969 | } | |
5970 | ||
5971 | char * | |
116c20d2 | 5972 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
5973 | { |
5974 | unsigned char *buf = NULL; | |
5975 | unsigned int len = 0; | |
452216ab | 5976 | int ret; |
3af9a47b NC |
5977 | |
5978 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
5979 | if (ret < 0) | |
5980 | return NULL; | |
5981 | ||
f075ee0c | 5982 | return (char *) buf; |
3af9a47b NC |
5983 | } |
5984 | ||
5985 | int | |
116c20d2 | 5986 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
5987 | { |
5988 | return 0; | |
5989 | } | |
5990 | ||
2ca7691a TG |
5991 | static bfd_mach_o_uuid_command * |
5992 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
5993 | { | |
09fe2662 | 5994 | bfd_mach_o_load_command *uuid_cmd = NULL; |
2ca7691a | 5995 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); |
09fe2662 | 5996 | if (ncmd != 1 || uuid_cmd == NULL) |
0a1b45a2 | 5997 | return false; |
2ca7691a TG |
5998 | return &uuid_cmd->command.uuid; |
5999 | } | |
6000 | ||
6001 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
6002 | ||
0a1b45a2 | 6003 | static bool |
2ca7691a TG |
6004 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) |
6005 | { | |
6006 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
6007 | ||
6008 | BFD_ASSERT (abfd); | |
6009 | BFD_ASSERT (uuid_cmd); | |
6010 | ||
6011 | if (!bfd_check_format (abfd, bfd_object)) | |
0a1b45a2 | 6012 | return false; |
2ca7691a TG |
6013 | |
6014 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
6015 | || bfd_mach_o_get_data (abfd) == NULL | |
6016 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
0a1b45a2 | 6017 | return false; |
2ca7691a TG |
6018 | |
6019 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
6020 | if (dsym_uuid_cmd == NULL) | |
0a1b45a2 | 6021 | return false; |
2ca7691a TG |
6022 | |
6023 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
07d6d2b8 | 6024 | sizeof (uuid_cmd->uuid)) != 0) |
0a1b45a2 | 6025 | return false; |
2ca7691a | 6026 | |
0a1b45a2 | 6027 | return true; |
2ca7691a TG |
6028 | } |
6029 | ||
6030 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
6031 | The caller is responsible for closing the returned BFD object and | |
6032 | its my_archive if the returned BFD is in a fat dSYM. */ | |
6033 | ||
6034 | static bfd * | |
6035 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
07d6d2b8 AM |
6036 | const bfd_mach_o_uuid_command *uuid_cmd, |
6037 | const bfd_arch_info_type *arch) | |
2ca7691a TG |
6038 | { |
6039 | bfd *base_dsym_bfd, *dsym_bfd; | |
6040 | ||
6041 | BFD_ASSERT (uuid_cmd); | |
6042 | ||
6043 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
6044 | if (base_dsym_bfd == NULL) | |
6045 | return NULL; | |
6046 | ||
6047 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
6048 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
6049 | return dsym_bfd; | |
6050 | ||
6051 | bfd_close (dsym_bfd); | |
6052 | if (base_dsym_bfd != dsym_bfd) | |
6053 | bfd_close (base_dsym_bfd); | |
6054 | ||
6055 | return NULL; | |
6056 | } | |
6057 | ||
6058 | /* Return a BFD created from a dSYM file for ABFD. | |
6059 | The caller is responsible for closing the returned BFD object, its | |
6060 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
6061 | ||
6062 | static bfd * | |
6063 | bfd_mach_o_follow_dsym (bfd *abfd) | |
6064 | { | |
6065 | char *dsym_filename; | |
6066 | bfd_mach_o_uuid_command *uuid_cmd; | |
6067 | bfd *dsym_bfd, *base_bfd = abfd; | |
6068 | const char *base_basename; | |
6069 | ||
6070 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
6071 | return NULL; | |
6072 | ||
b0cffb47 | 6073 | if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive)) |
2ca7691a TG |
6074 | base_bfd = abfd->my_archive; |
6075 | /* BFD may have been opened from a stream. */ | |
765cf5f6 | 6076 | if (bfd_get_filename (base_bfd) == NULL) |
2ca7691a TG |
6077 | { |
6078 | bfd_set_error (bfd_error_invalid_operation); | |
6079 | return NULL; | |
6080 | } | |
765cf5f6 | 6081 | base_basename = lbasename (bfd_get_filename (base_bfd)); |
2ca7691a TG |
6082 | |
6083 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
6084 | if (uuid_cmd == NULL) | |
6085 | return NULL; | |
6086 | ||
6087 | /* TODO: We assume the DWARF file has the same as the binary's. | |
6088 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
6089 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
6090 | */ | |
765cf5f6 | 6091 | dsym_filename = (char *)bfd_malloc (strlen (bfd_get_filename (base_bfd)) |
07d6d2b8 AM |
6092 | + strlen (dsym_subdir) + 1 |
6093 | + strlen (base_basename) + 1); | |
7a0fb7be NC |
6094 | if (dsym_filename == NULL) |
6095 | return NULL; | |
6096 | ||
2ca7691a | 6097 | sprintf (dsym_filename, "%s%s/%s", |
765cf5f6 | 6098 | bfd_get_filename (base_bfd), dsym_subdir, base_basename); |
2ca7691a TG |
6099 | |
6100 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
07d6d2b8 | 6101 | bfd_get_arch_info (abfd)); |
2ca7691a TG |
6102 | if (dsym_bfd == NULL) |
6103 | free (dsym_filename); | |
6104 | ||
6105 | return dsym_bfd; | |
6106 | } | |
6107 | ||
0a1b45a2 | 6108 | bool |
d9071b0c | 6109 | bfd_mach_o_find_nearest_line (bfd *abfd, |
d9071b0c | 6110 | asymbol **symbols, |
fb167eb2 | 6111 | asection *section, |
d9071b0c TG |
6112 | bfd_vma offset, |
6113 | const char **filename_ptr, | |
6114 | const char **functionname_ptr, | |
fb167eb2 AM |
6115 | unsigned int *line_ptr, |
6116 | unsigned int *discriminator_ptr) | |
d9071b0c TG |
6117 | { |
6118 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 6119 | if (mdata == NULL) |
0a1b45a2 | 6120 | return false; |
2ca7691a TG |
6121 | switch (mdata->header.filetype) |
6122 | { | |
6123 | case BFD_MACH_O_MH_OBJECT: | |
6124 | break; | |
6125 | case BFD_MACH_O_MH_EXECUTE: | |
6126 | case BFD_MACH_O_MH_DYLIB: | |
6127 | case BFD_MACH_O_MH_BUNDLE: | |
6128 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
6129 | if (mdata->dwarf2_find_line_info == NULL) | |
07d6d2b8 AM |
6130 | { |
6131 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
6132 | /* When we couldn't find dSYM for this binary, we look for | |
6133 | the debug information in the binary itself. In this way, | |
6134 | we won't try finding separated dSYM again because | |
6135 | mdata->dwarf2_find_line_info will be filled. */ | |
6136 | if (! mdata->dsym_bfd) | |
6137 | break; | |
6138 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
6139 | dwarf_debug_sections, symbols, | |
6140 | &mdata->dwarf2_find_line_info, | |
0a1b45a2 AM |
6141 | false)) |
6142 | return false; | |
07d6d2b8 | 6143 | } |
2ca7691a TG |
6144 | break; |
6145 | default: | |
0a1b45a2 | 6146 | return false; |
2ca7691a | 6147 | } |
fb167eb2 AM |
6148 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
6149 | filename_ptr, functionname_ptr, | |
6150 | line_ptr, discriminator_ptr, | |
9defd221 | 6151 | dwarf_debug_sections, |
fb167eb2 | 6152 | &mdata->dwarf2_find_line_info); |
d9071b0c TG |
6153 | } |
6154 | ||
0a1b45a2 | 6155 | bool |
d9071b0c TG |
6156 | bfd_mach_o_close_and_cleanup (bfd *abfd) |
6157 | { | |
6158 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
6159 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
6160 | { |
6161 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
6162 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a | 6163 | if (mdata->dsym_bfd != NULL) |
07d6d2b8 AM |
6164 | { |
6165 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
cf466c2a NC |
6166 | #if 0 |
6167 | /* FIXME: PR 19435: This calculation to find the memory allocated by | |
6168 | bfd_mach_o_follow_dsym for the filename does not always end up | |
6169 | selecting the correct pointer. Unfortunately this problem is | |
6170 | very hard to reproduce on a non Mach-O native system, so until it | |
6171 | can be traced and fixed on such a system, this code will remain | |
6172 | commented out. This does mean that there will be a memory leak, | |
6173 | but it is small, and happens when we are closing down, so it | |
c244074c | 6174 | should not matter too much. */ |
07d6d2b8 | 6175 | char *dsym_filename = (char *)(fat_bfd |
765cf5f6 AM |
6176 | ? bfd_get_filename (fat_bfd) |
6177 | : bfd_get_filename (mdata->dsym_bfd)); | |
cf466c2a | 6178 | #endif |
07d6d2b8 AM |
6179 | bfd_close (mdata->dsym_bfd); |
6180 | mdata->dsym_bfd = NULL; | |
6181 | if (fat_bfd) | |
6182 | bfd_close (fat_bfd); | |
cf466c2a | 6183 | #if 0 |
07d6d2b8 | 6184 | free (dsym_filename); |
cf466c2a | 6185 | #endif |
07d6d2b8 | 6186 | } |
4434114c | 6187 | } |
dff55db0 | 6188 | |
d9071b0c TG |
6189 | return _bfd_generic_close_and_cleanup (abfd); |
6190 | } | |
6191 | ||
0a1b45a2 | 6192 | bool |
c6643fcc | 6193 | bfd_mach_o_free_cached_info (bfd *abfd) |
dff55db0 TG |
6194 | { |
6195 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
6196 | asection *asect; | |
6197 | free (mdata->dyn_reloc_cache); | |
6198 | mdata->dyn_reloc_cache = NULL; | |
6199 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
6200 | { | |
6201 | free (asect->relocation); | |
6202 | asect->relocation = NULL; | |
6203 | } | |
6204 | ||
0a1b45a2 | 6205 | return true; |
dff55db0 TG |
6206 | } |
6207 | ||
68ffbac6 | 6208 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
92bc0e80 TG |
6209 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
6210 | ||
bcb51645 | 6211 | #define bfd_mach_o_canonicalize_one_reloc NULL |
92bc0e80 | 6212 | #define bfd_mach_o_swap_reloc_out NULL |
b32e07d7 | 6213 | #define bfd_mach_o_print_thread NULL |
a4551119 | 6214 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 6215 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 6216 | |
07d6d2b8 AM |
6217 | #define TARGET_NAME mach_o_be_vec |
6218 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 6219 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6220 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6221 | #define TARGET_BIG_ENDIAN 1 |
6222 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 6223 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
6224 | #include "mach-o-target.c" |
6225 | ||
6226 | #undef TARGET_NAME | |
6227 | #undef TARGET_STRING | |
42fa0891 | 6228 | #undef TARGET_ARCHITECTURE |
4384b284 | 6229 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6230 | #undef TARGET_BIG_ENDIAN |
6231 | #undef TARGET_ARCHIVE | |
b93a1992 | 6232 | #undef TARGET_PRIORITY |
3af9a47b | 6233 | |
07d6d2b8 AM |
6234 | #define TARGET_NAME mach_o_le_vec |
6235 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 6236 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6237 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6238 | #define TARGET_BIG_ENDIAN 0 |
6239 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 6240 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
6241 | |
6242 | #include "mach-o-target.c" | |
6243 | ||
6244 | #undef TARGET_NAME | |
6245 | #undef TARGET_STRING | |
42fa0891 | 6246 | #undef TARGET_ARCHITECTURE |
4384b284 | 6247 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6248 | #undef TARGET_BIG_ENDIAN |
6249 | #undef TARGET_ARCHIVE | |
b93a1992 | 6250 | #undef TARGET_PRIORITY |
3af9a47b | 6251 | |
8f95b6e4 | 6252 | /* Not yet handled: creating an archive. */ |
07d6d2b8 | 6253 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
8f95b6e4 | 6254 | |
eac61af6 | 6255 | #define bfd_mach_o_close_and_cleanup bfd_mach_o_fat_close_and_cleanup |
47daa70f | 6256 | |
8f95b6e4 | 6257 | /* Not used. */ |
07d6d2b8 | 6258 | #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt |
47daa70f TG |
6259 | #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file |
6260 | #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p | |
8f95b6e4 | 6261 | |
07d6d2b8 AM |
6262 | #define TARGET_NAME mach_o_fat_vec |
6263 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 6264 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6265 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6266 | #define TARGET_BIG_ENDIAN 1 |
6267 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 6268 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
6269 | |
6270 | #include "mach-o-target.c" | |
6271 | ||
6272 | #undef TARGET_NAME | |
6273 | #undef TARGET_STRING | |
42fa0891 | 6274 | #undef TARGET_ARCHITECTURE |
4384b284 | 6275 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6276 | #undef TARGET_BIG_ENDIAN |
6277 | #undef TARGET_ARCHIVE | |
b93a1992 | 6278 | #undef TARGET_PRIORITY |