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3af9a47b | 1 | /* Mach-O support for BFD. |
219d1afa | 2 | Copyright (C) 1999-2018 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" |
3af9a47b NC |
22 | #include "mach-o.h" |
23 | #include "bfd.h" | |
3af9a47b NC |
24 | #include "libbfd.h" |
25 | #include "libiberty.h" | |
15e1c58a | 26 | #include "aout/stab_gnu.h" |
46d1c23b TG |
27 | #include "mach-o/reloc.h" |
28 | #include "mach-o/external.h" | |
3af9a47b | 29 | #include <ctype.h> |
7f307238 IS |
30 | #include <stdlib.h> |
31 | #include <string.h> | |
3af9a47b | 32 | |
154a1ee5 TG |
33 | #define bfd_mach_o_object_p bfd_mach_o_gen_object_p |
34 | #define bfd_mach_o_core_p bfd_mach_o_gen_core_p | |
42fa0891 | 35 | #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject |
116c20d2 | 36 | |
92bc0e80 | 37 | #define FILE_ALIGN(off, algn) \ |
b6518b38 | 38 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn))) |
92bc0e80 | 39 | |
c9ffd2ea TG |
40 | static bfd_boolean |
41 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd); | |
42 | ||
c2f09c75 | 43 | unsigned int |
1e8a024a TG |
44 | bfd_mach_o_version (bfd *abfd) |
45 | { | |
46 | bfd_mach_o_data_struct *mdata = NULL; | |
47 | ||
48 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
046b007d | 49 | mdata = bfd_mach_o_get_data (abfd); |
1e8a024a TG |
50 | |
51 | return mdata->header.version; | |
52 | } | |
53 | ||
b34976b6 | 54 | bfd_boolean |
116c20d2 | 55 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
56 | { |
57 | if (abfd == NULL || abfd->xvec == NULL) | |
154a1ee5 | 58 | return FALSE; |
3af9a47b | 59 | |
154a1ee5 TG |
60 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
61 | return FALSE; | |
3af9a47b | 62 | |
046b007d | 63 | if (bfd_mach_o_get_data (abfd) == NULL) |
154a1ee5 TG |
64 | return FALSE; |
65 | return TRUE; | |
66 | } | |
67 | ||
c2f09c75 TG |
68 | static INLINE bfd_boolean |
69 | mach_o_wide_p (bfd_mach_o_header *header) | |
70 | { | |
71 | switch (header->version) | |
72 | { | |
73 | case 1: | |
74 | return FALSE; | |
75 | case 2: | |
76 | return TRUE; | |
77 | default: | |
78 | BFD_FAIL (); | |
79 | return FALSE; | |
80 | } | |
81 | } | |
82 | ||
83 | static INLINE bfd_boolean | |
84 | bfd_mach_o_wide_p (bfd *abfd) | |
85 | { | |
046b007d | 86 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
c2f09c75 | 87 | } |
68ffbac6 | 88 | |
154a1ee5 TG |
89 | /* Tables to translate well known Mach-O segment/section names to bfd |
90 | names. Use of canonical names (such as .text or .debug_frame) is required | |
91 | by gdb. */ | |
92 | ||
a4551119 TG |
93 | /* __TEXT Segment. */ |
94 | static const mach_o_section_name_xlat text_section_names_xlat[] = | |
154a1ee5 | 95 | { |
68ffbac6 | 96 | { ".text", "__text", |
a4551119 TG |
97 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, |
98 | BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0}, | |
99 | { ".const", "__const", | |
100 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
101 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
102 | { ".static_const", "__static_const", | |
103 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
104 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
105 | { ".cstring", "__cstring", | |
106 | SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS, | |
107 | BFD_MACH_O_S_CSTRING_LITERALS, | |
108 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
109 | { ".literal4", "__literal4", | |
110 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS, | |
111 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
112 | { ".literal8", "__literal8", | |
113 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS, | |
114 | BFD_MACH_O_S_ATTR_NONE, 3}, | |
115 | { ".literal16", "__literal16", | |
116 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS, | |
117 | BFD_MACH_O_S_ATTR_NONE, 4}, | |
118 | { ".constructor", "__constructor", | |
119 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
120 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
121 | { ".destructor", "__destructor", | |
122 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
123 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
124 | { ".eh_frame", "__eh_frame", | |
632039e0 | 125 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED, |
a4551119 TG |
126 | BFD_MACH_O_S_ATTR_LIVE_SUPPORT |
127 | | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS | |
632039e0 | 128 | | BFD_MACH_O_S_ATTR_NO_TOC, 2}, |
a4551119 | 129 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
130 | }; |
131 | ||
a4551119 TG |
132 | /* __DATA Segment. */ |
133 | static const mach_o_section_name_xlat data_section_names_xlat[] = | |
154a1ee5 | 134 | { |
a4551119 TG |
135 | { ".data", "__data", |
136 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
137 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
138 | { ".bss", "__bss", | |
139 | SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL, | |
140 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
141 | { ".const_data", "__const", | |
142 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
143 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
144 | { ".static_data", "__static_data", | |
145 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
146 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
147 | { ".mod_init_func", "__mod_init_func", | |
148 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS, | |
149 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
150 | { ".mod_term_func", "__mod_term_func", | |
151 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS, | |
152 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
153 | { ".dyld", "__dyld", | |
154 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
155 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
156 | { ".cfstring", "__cfstring", | |
157 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
158 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
159 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
160 | }; |
161 | ||
a4551119 TG |
162 | /* __DWARF Segment. */ |
163 | static const mach_o_section_name_xlat dwarf_section_names_xlat[] = | |
154a1ee5 | 164 | { |
a4551119 TG |
165 | { ".debug_frame", "__debug_frame", |
166 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
167 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
168 | { ".debug_info", "__debug_info", | |
169 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
170 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
171 | { ".debug_abbrev", "__debug_abbrev", | |
172 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
173 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
174 | { ".debug_aranges", "__debug_aranges", | |
175 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
176 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
177 | { ".debug_macinfo", "__debug_macinfo", | |
178 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
179 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
180 | { ".debug_line", "__debug_line", | |
181 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
182 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
183 | { ".debug_loc", "__debug_loc", | |
184 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
185 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
186 | { ".debug_pubnames", "__debug_pubnames", | |
187 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
188 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
189 | { ".debug_pubtypes", "__debug_pubtypes", | |
190 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
191 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
192 | { ".debug_str", "__debug_str", | |
193 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
194 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
195 | { ".debug_ranges", "__debug_ranges", | |
196 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
197 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
198 | { ".debug_macro", "__debug_macro", | |
199 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
200 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
671a6cbe NC |
201 | { ".debug_gdb_scripts", "__debug_gdb_scri", |
202 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
203 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
a4551119 | 204 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
205 | }; |
206 | ||
a4551119 TG |
207 | /* __OBJC Segment. */ |
208 | static const mach_o_section_name_xlat objc_section_names_xlat[] = | |
209 | { | |
210 | { ".objc_class", "__class", | |
211 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
212 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
213 | { ".objc_meta_class", "__meta_class", | |
214 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
215 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
216 | { ".objc_cat_cls_meth", "__cat_cls_meth", | |
217 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
218 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
219 | { ".objc_cat_inst_meth", "__cat_inst_meth", | |
220 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
221 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
222 | { ".objc_protocol", "__protocol", | |
223 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
224 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
225 | { ".objc_string_object", "__string_object", | |
226 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
227 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
228 | { ".objc_cls_meth", "__cls_meth", | |
229 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
230 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
231 | { ".objc_inst_meth", "__inst_meth", | |
232 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
233 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
234 | { ".objc_cls_refs", "__cls_refs", | |
235 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
236 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
237 | { ".objc_message_refs", "__message_refs", | |
238 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
239 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
240 | { ".objc_symbols", "__symbols", | |
241 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
242 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
243 | { ".objc_category", "__category", | |
244 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
245 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
246 | { ".objc_class_vars", "__class_vars", | |
247 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
248 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
249 | { ".objc_instance_vars", "__instance_vars", | |
250 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
251 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
252 | { ".objc_module_info", "__module_info", | |
253 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
254 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
255 | { ".objc_selector_strs", "__selector_strs", | |
256 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS, | |
257 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
258 | { ".objc_image_info", "__image_info", | |
259 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
260 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
261 | { ".objc_selector_fixup", "__sel_fixup", | |
262 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
263 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
264 | /* Objc V1 */ | |
265 | { ".objc1_class_ext", "__class_ext", | |
266 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
267 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
268 | { ".objc1_property_list", "__property", | |
269 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
270 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
271 | { ".objc1_protocol_ext", "__protocol_ext", | |
272 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
273 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
274 | { NULL, NULL, 0, 0, 0, 0} | |
275 | }; | |
5a5cbf72 | 276 | |
a4551119 | 277 | static const mach_o_segment_name_xlat segsec_names_xlat[] = |
154a1ee5 | 278 | { |
154a1ee5 TG |
279 | { "__TEXT", text_section_names_xlat }, |
280 | { "__DATA", data_section_names_xlat }, | |
5a5cbf72 | 281 | { "__DWARF", dwarf_section_names_xlat }, |
a4551119 | 282 | { "__OBJC", objc_section_names_xlat }, |
154a1ee5 TG |
283 | { NULL, NULL } |
284 | }; | |
285 | ||
2ca7691a TG |
286 | static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF"; |
287 | ||
a4551119 TG |
288 | /* For both cases bfd-name => mach-o name and vice versa, the specific target |
289 | is checked before the generic. This allows a target (e.g. ppc for cstring) | |
290 | to override the generic definition with a more specific one. */ | |
154a1ee5 | 291 | |
a4551119 TG |
292 | /* Fetch the translation from a Mach-O section designation (segment, section) |
293 | as a bfd short name, if one exists. Otherwise return NULL. | |
68ffbac6 | 294 | |
a4551119 TG |
295 | Allow the segment and section names to be unterminated 16 byte arrays. */ |
296 | ||
297 | const mach_o_section_name_xlat * | |
298 | bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname, | |
299 | const char *sectname) | |
154a1ee5 TG |
300 | { |
301 | const struct mach_o_segment_name_xlat *seg; | |
a4551119 TG |
302 | const mach_o_section_name_xlat *sec; |
303 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
154a1ee5 | 304 | |
a4551119 TG |
305 | /* First try any target-specific translations defined... */ |
306 | if (bed->segsec_names_xlat) | |
307 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
308 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
309 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
310 | if (strncmp (sec->mach_o_name, sectname, | |
311 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
312 | return sec; | |
8462aec7 | 313 | |
a4551119 | 314 | /* ... and then the Mach-O generic ones. */ |
154a1ee5 | 315 | for (seg = segsec_names_xlat; seg->segname; seg++) |
a4551119 TG |
316 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) |
317 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
07d6d2b8 | 318 | if (strncmp (sec->mach_o_name, sectname, |
a4551119 | 319 | BFD_MACH_O_SECTNAME_SIZE) == 0) |
07d6d2b8 | 320 | return sec; |
154a1ee5 | 321 | |
68ffbac6 | 322 | return NULL; |
53d58d96 TG |
323 | } |
324 | ||
a4551119 | 325 | /* If the bfd_name for this section is a 'canonical' form for which we |
68ffbac6 | 326 | know the Mach-O data, return the segment name and the data for the |
a4551119 | 327 | Mach-O equivalent. Otherwise return NULL. */ |
7ba695a9 | 328 | |
a4551119 TG |
329 | const mach_o_section_name_xlat * |
330 | bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name, | |
331 | const char **segname) | |
53d58d96 | 332 | { |
a4551119 TG |
333 | const struct mach_o_segment_name_xlat *seg; |
334 | const mach_o_section_name_xlat *sec; | |
335 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
336 | *segname = NULL; | |
337 | ||
338 | if (bfd_name[0] != '.') | |
339 | return NULL; | |
340 | ||
341 | /* First try any target-specific translations defined... */ | |
342 | if (bed->segsec_names_xlat) | |
343 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
344 | for (sec = seg->sections; sec->bfd_name; sec++) | |
345 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
346 | { | |
347 | *segname = seg->segname; | |
348 | return sec; | |
349 | } | |
350 | ||
351 | /* ... and then the Mach-O generic ones. */ | |
352 | for (seg = segsec_names_xlat; seg->segname; seg++) | |
353 | for (sec = seg->sections; sec->bfd_name; sec++) | |
354 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
355 | { | |
356 | *segname = seg->segname; | |
357 | return sec; | |
358 | } | |
359 | ||
68ffbac6 | 360 | return NULL; |
a4551119 TG |
361 | } |
362 | ||
363 | /* Convert Mach-O section name to BFD. | |
364 | ||
68ffbac6 | 365 | Try to use standard/canonical names, for which we have tables including |
a4551119 TG |
366 | default flag settings - which are returned. Otherwise forge a new name |
367 | in the form "<segmentname>.<sectionname>" this will be prefixed with | |
368 | LC_SEGMENT. if the segment name does not begin with an underscore. | |
369 | ||
370 | SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL- | |
371 | terminated if the name length is exactly 16 bytes - but must be if the name | |
372 | length is less than 16 characters). */ | |
373 | ||
374 | void | |
375 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname, | |
376 | const char *secname, const char **name, | |
377 | flagword *flags) | |
378 | { | |
379 | const mach_o_section_name_xlat *xlat; | |
53d58d96 TG |
380 | char *res; |
381 | unsigned int len; | |
382 | const char *pfx = ""; | |
383 | ||
a4551119 TG |
384 | *name = NULL; |
385 | *flags = SEC_NO_FLAGS; | |
53d58d96 | 386 | |
68ffbac6 | 387 | /* First search for a canonical name... |
a4551119 TG |
388 | xlat will be non-null if there is an entry for segname, secname. */ |
389 | xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname); | |
390 | if (xlat) | |
391 | { | |
392 | len = strlen (xlat->bfd_name); | |
64d29018 | 393 | res = bfd_alloc (abfd, len + 1); |
a4551119 TG |
394 | if (res == NULL) |
395 | return; | |
396 | memcpy (res, xlat->bfd_name, len+1); | |
397 | *name = res; | |
398 | *flags = xlat->bfd_flags; | |
399 | return; | |
400 | } | |
401 | ||
402 | /* ... else we make up a bfd name from the segment concatenated with the | |
403 | section. */ | |
154a1ee5 | 404 | |
7ba695a9 | 405 | len = 16 + 1 + 16 + 1; |
154a1ee5 | 406 | |
c2f09c75 TG |
407 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
408 | with an underscore. */ | |
f1bde64c | 409 | if (segname[0] != '_') |
c2f09c75 TG |
410 | { |
411 | static const char seg_pfx[] = "LC_SEGMENT."; | |
412 | ||
413 | pfx = seg_pfx; | |
414 | len += sizeof (seg_pfx) - 1; | |
415 | } | |
416 | ||
154a1ee5 TG |
417 | res = bfd_alloc (abfd, len); |
418 | if (res == NULL) | |
8462aec7 | 419 | return; |
a4551119 | 420 | snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname); |
8462aec7 | 421 | *name = res; |
154a1ee5 TG |
422 | } |
423 | ||
a4551119 | 424 | /* Convert a bfd section name to a Mach-O segment + section name. |
154a1ee5 | 425 | |
a4551119 TG |
426 | If the name is a canonical one for which we have a Darwin match |
427 | return the translation table - which contains defaults for flags, | |
428 | type, attribute and default alignment data. | |
429 | ||
68ffbac6 | 430 | Otherwise, expand the bfd_name (assumed to be in the form |
a4551119 TG |
431 | "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */ |
432 | ||
433 | static const mach_o_section_name_xlat * | |
154a1ee5 | 434 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
07d6d2b8 AM |
435 | asection *sect, |
436 | bfd_mach_o_section *section) | |
154a1ee5 | 437 | { |
a4551119 | 438 | const mach_o_section_name_xlat *xlat; |
154a1ee5 | 439 | const char *name = bfd_get_section_name (abfd, sect); |
a4551119 | 440 | const char *segname; |
154a1ee5 TG |
441 | const char *dot; |
442 | unsigned int len; | |
443 | unsigned int seglen; | |
444 | unsigned int seclen; | |
445 | ||
a4551119 TG |
446 | memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1); |
447 | memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1); | |
448 | ||
449 | /* See if is a canonical name ... */ | |
450 | xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname); | |
451 | if (xlat) | |
452 | { | |
453 | strcpy (section->segname, segname); | |
454 | strcpy (section->sectname, xlat->mach_o_name); | |
455 | return xlat; | |
456 | } | |
154a1ee5 | 457 | |
a4551119 TG |
458 | /* .. else we convert our constructed one back to Mach-O. |
459 | Strip LC_SEGMENT. prefix, if present. */ | |
154a1ee5 TG |
460 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
461 | name += 11; | |
462 | ||
463 | /* Find a dot. */ | |
464 | dot = strchr (name, '.'); | |
465 | len = strlen (name); | |
466 | ||
467 | /* Try to split name into segment and section names. */ | |
468 | if (dot && dot != name) | |
469 | { | |
470 | seglen = dot - name; | |
471 | seclen = len - (dot + 1 - name); | |
472 | ||
ca148c5a TG |
473 | if (seglen <= BFD_MACH_O_SEGNAME_SIZE |
474 | && seclen <= BFD_MACH_O_SECTNAME_SIZE) | |
07d6d2b8 AM |
475 | { |
476 | memcpy (section->segname, name, seglen); | |
477 | section->segname[seglen] = 0; | |
478 | memcpy (section->sectname, dot + 1, seclen); | |
479 | section->sectname[seclen] = 0; | |
480 | return NULL; | |
481 | } | |
154a1ee5 TG |
482 | } |
483 | ||
a4551119 TG |
484 | /* The segment and section names are both missing - don't make them |
485 | into dots. */ | |
486 | if (dot && dot == name) | |
487 | return NULL; | |
488 | ||
489 | /* Just duplicate the name into both segment and section. */ | |
154a1ee5 TG |
490 | if (len > 16) |
491 | len = 16; | |
492 | memcpy (section->segname, name, len); | |
493 | section->segname[len] = 0; | |
494 | memcpy (section->sectname, name, len); | |
495 | section->sectname[len] = 0; | |
a4551119 | 496 | return NULL; |
3af9a47b NC |
497 | } |
498 | ||
b2b62060 TG |
499 | /* Return the size of an entry for section SEC. |
500 | Must be called only for symbol pointer section and symbol stubs | |
501 | sections. */ | |
502 | ||
c5012cd8 | 503 | unsigned int |
b2b62060 TG |
504 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
505 | { | |
506 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
507 | { | |
508 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
509 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
510 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
511 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
512 | return sec->reserved2; | |
513 | default: | |
514 | BFD_FAIL (); | |
515 | return 0; | |
516 | } | |
517 | } | |
518 | ||
519 | /* Return the number of indirect symbols for a section. | |
520 | Must be called only for symbol pointer section and symbol stubs | |
521 | sections. */ | |
522 | ||
c5012cd8 | 523 | unsigned int |
b2b62060 TG |
524 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
525 | { | |
526 | unsigned int elsz; | |
527 | ||
528 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); | |
529 | if (elsz == 0) | |
530 | return 0; | |
531 | else | |
532 | return sec->size / elsz; | |
533 | } | |
534 | ||
c9ffd2ea TG |
535 | /* Append command CMD to ABFD. Note that header.ncmds is not updated. */ |
536 | ||
537 | static void | |
538 | bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd) | |
539 | { | |
540 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
541 | ||
542 | if (mdata->last_command != NULL) | |
543 | mdata->last_command->next = cmd; | |
544 | else | |
545 | mdata->first_command = cmd; | |
546 | mdata->last_command = cmd; | |
547 | cmd->next = NULL; | |
548 | } | |
b2b62060 | 549 | |
3af9a47b NC |
550 | /* Copy any private info we understand from the input symbol |
551 | to the output symbol. */ | |
552 | ||
154a1ee5 | 553 | bfd_boolean |
116c20d2 | 554 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
b22161d6 | 555 | asymbol *isymbol, |
116c20d2 | 556 | bfd *obfd ATTRIBUTE_UNUSED, |
b22161d6 IS |
557 | asymbol *osymbol) |
558 | { | |
559 | bfd_mach_o_asymbol *os, *is; | |
c9ffd2ea | 560 | |
b22161d6 IS |
561 | os = (bfd_mach_o_asymbol *)osymbol; |
562 | is = (bfd_mach_o_asymbol *)isymbol; | |
563 | os->n_type = is->n_type; | |
564 | os->n_sect = is->n_sect; | |
565 | os->n_desc = is->n_desc; | |
566 | os->symbol.udata.i = is->symbol.udata.i; | |
c9ffd2ea | 567 | |
b34976b6 | 568 | return TRUE; |
3af9a47b NC |
569 | } |
570 | ||
571 | /* Copy any private info we understand from the input section | |
572 | to the output section. */ | |
573 | ||
154a1ee5 | 574 | bfd_boolean |
c9ffd2ea TG |
575 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection, |
576 | bfd *obfd, asection *osection) | |
a4551119 | 577 | { |
c9ffd2ea TG |
578 | bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection); |
579 | bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection); | |
68ffbac6 | 580 | |
c9ffd2ea TG |
581 | if (ibfd->xvec->flavour != bfd_target_mach_o_flavour |
582 | || obfd->xvec->flavour != bfd_target_mach_o_flavour) | |
583 | return TRUE; | |
584 | ||
585 | BFD_ASSERT (is != NULL && os != NULL); | |
586 | ||
587 | os->flags = is->flags; | |
588 | os->reserved1 = is->reserved1; | |
589 | os->reserved2 = is->reserved2; | |
590 | os->reserved3 = is->reserved3; | |
a4551119 | 591 | |
b34976b6 | 592 | return TRUE; |
3af9a47b NC |
593 | } |
594 | ||
595 | /* Copy any private info we understand from the input bfd | |
596 | to the output bfd. */ | |
597 | ||
154a1ee5 | 598 | bfd_boolean |
967b2c53 | 599 | bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 600 | { |
c9ffd2ea TG |
601 | bfd_mach_o_data_struct *imdata; |
602 | bfd_mach_o_data_struct *omdata; | |
603 | bfd_mach_o_load_command *icmd; | |
604 | ||
154a1ee5 TG |
605 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
606 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
607 | return TRUE; | |
608 | ||
3af9a47b NC |
609 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
610 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
611 | ||
c9ffd2ea TG |
612 | imdata = bfd_mach_o_get_data (ibfd); |
613 | omdata = bfd_mach_o_get_data (obfd); | |
614 | ||
615 | /* Copy header flags. */ | |
616 | omdata->header.flags = imdata->header.flags; | |
617 | ||
618 | /* Copy commands. */ | |
619 | for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next) | |
620 | { | |
621 | bfd_mach_o_load_command *ocmd; | |
622 | ||
623 | switch (icmd->type) | |
624 | { | |
625 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
626 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
627 | case BFD_MACH_O_LC_DYLD_INFO: | |
628 | /* Command is copied. */ | |
629 | ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command)); | |
630 | if (ocmd == NULL) | |
631 | return FALSE; | |
632 | ||
633 | /* Copy common fields. */ | |
634 | ocmd->type = icmd->type; | |
635 | ocmd->type_required = icmd->type_required; | |
636 | ocmd->offset = 0; | |
637 | ocmd->len = icmd->len; | |
638 | break; | |
639 | ||
640 | default: | |
641 | /* Command is not copied. */ | |
642 | continue; | |
643 | break; | |
644 | } | |
645 | ||
646 | switch (icmd->type) | |
647 | { | |
648 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
649 | { | |
650 | bfd_mach_o_dylib_command *idy = &icmd->command.dylib; | |
651 | bfd_mach_o_dylib_command *ody = &ocmd->command.dylib; | |
652 | ||
653 | ody->name_offset = idy->name_offset; | |
654 | ody->timestamp = idy->timestamp; | |
655 | ody->current_version = idy->current_version; | |
656 | ody->compatibility_version = idy->compatibility_version; | |
657 | ody->name_str = idy->name_str; | |
658 | } | |
659 | break; | |
660 | ||
661 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
662 | { | |
663 | bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker; | |
664 | bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker; | |
665 | ||
666 | ody->name_offset = idy->name_offset; | |
667 | ody->name_str = idy->name_str; | |
668 | } | |
669 | break; | |
670 | ||
671 | case BFD_MACH_O_LC_DYLD_INFO: | |
672 | { | |
673 | bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info; | |
674 | bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info; | |
675 | ||
676 | if (bfd_mach_o_read_dyld_content (ibfd, idy)) | |
677 | { | |
678 | ody->rebase_size = idy->rebase_size; | |
679 | ody->rebase_content = idy->rebase_content; | |
680 | ||
681 | ody->bind_size = idy->bind_size; | |
682 | ody->bind_content = idy->bind_content; | |
683 | ||
684 | ody->weak_bind_size = idy->weak_bind_size; | |
685 | ody->weak_bind_content = idy->weak_bind_content; | |
686 | ||
687 | ody->lazy_bind_size = idy->lazy_bind_size; | |
688 | ody->lazy_bind_content = idy->lazy_bind_content; | |
689 | ||
690 | ody->export_size = idy->export_size; | |
691 | ody->export_content = idy->export_content; | |
692 | } | |
86eafac0 NC |
693 | /* PR 17512L: file: 730e492d. */ |
694 | else | |
695 | { | |
1b786873 L |
696 | ody->rebase_size = |
697 | ody->bind_size = | |
698 | ody->weak_bind_size = | |
699 | ody->lazy_bind_size = | |
86eafac0 | 700 | ody->export_size = 0; |
1b786873 L |
701 | ody->rebase_content = |
702 | ody->bind_content = | |
703 | ody->weak_bind_content = | |
704 | ody->lazy_bind_content = | |
86eafac0 NC |
705 | ody->export_content = NULL; |
706 | } | |
c9ffd2ea TG |
707 | } |
708 | break; | |
709 | ||
710 | default: | |
711 | /* That command should be handled. */ | |
712 | abort (); | |
713 | } | |
714 | ||
715 | /* Insert command. */ | |
716 | bfd_mach_o_append_command (obfd, ocmd); | |
717 | } | |
154a1ee5 | 718 | |
b34976b6 | 719 | return TRUE; |
3af9a47b NC |
720 | } |
721 | ||
0c9ef0f0 TG |
722 | /* This allows us to set up to 32 bits of flags (unless we invent some |
723 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
724 | without error checking - just overwrite. */ | |
68ffbac6 | 725 | |
0c9ef0f0 TG |
726 | bfd_boolean |
727 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) | |
728 | { | |
729 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
730 | ||
731 | if (!mdata) | |
732 | return FALSE; | |
733 | ||
734 | mdata->header.flags = flags; | |
735 | return TRUE; | |
736 | } | |
737 | ||
046b007d | 738 | /* Count the total number of symbols. */ |
154a1ee5 | 739 | |
3af9a47b | 740 | static long |
116c20d2 | 741 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 742 | { |
046b007d | 743 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 744 | |
046b007d TG |
745 | if (mdata->symtab == NULL) |
746 | return 0; | |
747 | return mdata->symtab->nsyms; | |
3af9a47b NC |
748 | } |
749 | ||
154a1ee5 | 750 | long |
116c20d2 | 751 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
752 | { |
753 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
754 | ||
3af9a47b NC |
755 | return ((nsyms + 1) * sizeof (asymbol *)); |
756 | } | |
757 | ||
154a1ee5 | 758 | long |
116c20d2 | 759 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 760 | { |
046b007d | 761 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 762 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
763 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
764 | unsigned long j; | |
3af9a47b NC |
765 | |
766 | if (nsyms < 0) | |
767 | return nsyms; | |
768 | ||
092d27ff TG |
769 | if (nsyms == 0) |
770 | { | |
771 | /* Do not try to read symbols if there are none. */ | |
772 | alocation[0] = NULL; | |
773 | return 0; | |
774 | } | |
775 | ||
afbb9e17 | 776 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 777 | { |
4eca0228 | 778 | _bfd_error_handler |
07d6d2b8 | 779 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); |
046b007d TG |
780 | return 0; |
781 | } | |
3af9a47b | 782 | |
046b007d | 783 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 784 | |
046b007d TG |
785 | for (j = 0; j < sym->nsyms; j++) |
786 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 787 | |
046b007d | 788 | alocation[j] = NULL; |
a95a4550 | 789 | |
3af9a47b NC |
790 | return nsyms; |
791 | } | |
792 | ||
aeefa1c9 TG |
793 | /* Create synthetic symbols for indirect symbols. */ |
794 | ||
b2b62060 TG |
795 | long |
796 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
07d6d2b8 AM |
797 | long symcount ATTRIBUTE_UNUSED, |
798 | asymbol **syms ATTRIBUTE_UNUSED, | |
799 | long dynsymcount ATTRIBUTE_UNUSED, | |
800 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
801 | asymbol **ret) | |
b2b62060 TG |
802 | { |
803 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
804 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
805 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
806 | asymbol *s; | |
896ca098 NC |
807 | char * s_start; |
808 | char * s_end; | |
b2b62060 TG |
809 | unsigned long count, i, j, n; |
810 | size_t size; | |
811 | char *names; | |
812 | char *nul_name; | |
896ca098 | 813 | const char stub [] = "$stub"; |
b2b62060 TG |
814 | |
815 | *ret = NULL; | |
816 | ||
aeefa1c9 | 817 | /* Stop now if no symbols or no indirect symbols. */ |
896ca098 NC |
818 | if (dysymtab == NULL || dysymtab->nindirectsyms == 0 |
819 | || symtab == NULL || symtab->symbols == NULL) | |
b2b62060 TG |
820 | return 0; |
821 | ||
aeefa1c9 TG |
822 | /* We need to allocate a bfd symbol for every indirect symbol and to |
823 | allocate the memory for its name. */ | |
b2b62060 TG |
824 | count = dysymtab->nindirectsyms; |
825 | size = count * sizeof (asymbol) + 1; | |
826 | ||
827 | for (j = 0; j < count; j++) | |
828 | { | |
896ca098 | 829 | const char * strng; |
b2b62060 | 830 | unsigned int isym = dysymtab->indirect_syms[j]; |
aeefa1c9 TG |
831 | |
832 | /* Some indirect symbols are anonymous. */ | |
896ca098 NC |
833 | if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name)) |
834 | /* PR 17512: file: f5b8eeba. */ | |
835 | size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub); | |
b2b62060 TG |
836 | } |
837 | ||
896ca098 NC |
838 | s_start = bfd_malloc (size); |
839 | s = *ret = (asymbol *) s_start; | |
b2b62060 TG |
840 | if (s == NULL) |
841 | return -1; | |
842 | names = (char *) (s + count); | |
843 | nul_name = names; | |
844 | *names++ = 0; | |
896ca098 | 845 | s_end = s_start + size; |
68ffbac6 | 846 | |
b2b62060 TG |
847 | n = 0; |
848 | for (i = 0; i < mdata->nsects; i++) | |
849 | { | |
850 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 851 | unsigned int first, last; |
b2b62060 TG |
852 | bfd_vma addr; |
853 | bfd_vma entry_size; | |
68ffbac6 | 854 | |
b2b62060 | 855 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
07d6d2b8 AM |
856 | { |
857 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
858 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
859 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
860 | /* Only these sections have indirect symbols. */ | |
861 | first = sec->reserved1; | |
862 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
863 | addr = sec->addr; | |
864 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
896ca098 NC |
865 | |
866 | /* PR 17512: file: 08e15eec. */ | |
867 | if (first >= count || last >= count || first > last) | |
868 | goto fail; | |
869 | ||
07d6d2b8 AM |
870 | for (j = first; j < last; j++) |
871 | { | |
872 | unsigned int isym = dysymtab->indirect_syms[j]; | |
b2b62060 | 873 | |
896ca098 NC |
874 | /* PR 17512: file: 04d64d9b. */ |
875 | if (((char *) s) + sizeof (* s) > s_end) | |
876 | goto fail; | |
877 | ||
07d6d2b8 AM |
878 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
879 | s->section = sec->bfdsection; | |
880 | s->value = addr - sec->addr; | |
881 | s->udata.p = NULL; | |
68ffbac6 | 882 | |
07d6d2b8 AM |
883 | if (isym < symtab->nsyms |
884 | && symtab->symbols[isym].symbol.name) | |
885 | { | |
886 | const char *sym = symtab->symbols[isym].symbol.name; | |
887 | size_t len; | |
b2b62060 | 888 | |
07d6d2b8 AM |
889 | s->name = names; |
890 | len = strlen (sym); | |
896ca098 NC |
891 | /* PR 17512: file: 47dfd4d2. */ |
892 | if (names + len >= s_end) | |
893 | goto fail; | |
07d6d2b8 AM |
894 | memcpy (names, sym, len); |
895 | names += len; | |
896ca098 NC |
896 | /* PR 17512: file: 18f340a4. */ |
897 | if (names + sizeof (stub) >= s_end) | |
898 | goto fail; | |
07d6d2b8 AM |
899 | memcpy (names, stub, sizeof (stub)); |
900 | names += sizeof (stub); | |
901 | } | |
902 | else | |
903 | s->name = nul_name; | |
904 | ||
905 | addr += entry_size; | |
906 | s++; | |
907 | n++; | |
908 | } | |
909 | break; | |
910 | default: | |
911 | break; | |
912 | } | |
b2b62060 TG |
913 | } |
914 | ||
915 | return n; | |
896ca098 NC |
916 | |
917 | fail: | |
918 | free (s_start); | |
919 | * ret = NULL; | |
920 | return -1; | |
b2b62060 TG |
921 | } |
922 | ||
154a1ee5 | 923 | void |
116c20d2 NC |
924 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
925 | asymbol *symbol, | |
926 | symbol_info *ret) | |
3af9a47b NC |
927 | { |
928 | bfd_symbol_info (symbol, ret); | |
929 | } | |
930 | ||
154a1ee5 | 931 | void |
116c20d2 | 932 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 933 | void * afile, |
116c20d2 NC |
934 | asymbol *symbol, |
935 | bfd_print_symbol_type how) | |
3af9a47b NC |
936 | { |
937 | FILE *file = (FILE *) afile; | |
15e1c58a | 938 | const char *name; |
92bc0e80 | 939 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
940 | |
941 | switch (how) | |
942 | { | |
943 | case bfd_print_symbol_name: | |
944 | fprintf (file, "%s", symbol->name); | |
945 | break; | |
946 | default: | |
91d6fa6a | 947 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
948 | if (asym->n_type & BFD_MACH_O_N_STAB) |
949 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 950 | else |
92bc0e80 | 951 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
952 | { |
953 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
954 | if (symbol->value == 0) |
955 | name = "UND"; | |
956 | else | |
957 | name = "COM"; | |
15e1c58a TG |
958 | break; |
959 | case BFD_MACH_O_N_ABS: | |
960 | name = "ABS"; | |
961 | break; | |
962 | case BFD_MACH_O_N_INDR: | |
963 | name = "INDR"; | |
964 | break; | |
965 | case BFD_MACH_O_N_PBUD: | |
966 | name = "PBUD"; | |
967 | break; | |
968 | case BFD_MACH_O_N_SECT: | |
969 | name = "SECT"; | |
970 | break; | |
971 | default: | |
972 | name = "???"; | |
973 | break; | |
974 | } | |
975 | if (name == NULL) | |
976 | name = ""; | |
92bc0e80 | 977 | fprintf (file, " %02x %-6s %02x %04x", |
07d6d2b8 | 978 | asym->n_type, name, asym->n_sect, asym->n_desc); |
92bc0e80 TG |
979 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 |
980 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 981 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 982 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
983 | } |
984 | } | |
985 | ||
986 | static void | |
116c20d2 | 987 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 988 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
989 | enum bfd_architecture *type, |
990 | unsigned long *subtype) | |
3af9a47b NC |
991 | { |
992 | *subtype = bfd_arch_unknown; | |
993 | ||
994 | switch (mtype) | |
995 | { | |
0b2de107 TG |
996 | case BFD_MACH_O_CPU_TYPE_VAX: |
997 | *type = bfd_arch_vax; | |
998 | break; | |
999 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1000 | *type = bfd_arch_m68k; | |
1001 | break; | |
1e8a024a TG |
1002 | case BFD_MACH_O_CPU_TYPE_I386: |
1003 | *type = bfd_arch_i386; | |
1004 | *subtype = bfd_mach_i386_i386; | |
1005 | break; | |
1006 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
1007 | *type = bfd_arch_i386; | |
1008 | *subtype = bfd_mach_x86_64; | |
1009 | break; | |
0b2de107 TG |
1010 | case BFD_MACH_O_CPU_TYPE_MIPS: |
1011 | *type = bfd_arch_mips; | |
1012 | break; | |
1013 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
1014 | *type = bfd_arch_m98k; | |
1015 | break; | |
1016 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
1017 | *type = bfd_arch_hppa; | |
1018 | break; | |
1019 | case BFD_MACH_O_CPU_TYPE_ARM: | |
1020 | *type = bfd_arch_arm; | |
1021 | switch (msubtype) | |
07d6d2b8 AM |
1022 | { |
1023 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
1024 | *subtype = bfd_mach_arm_4T; | |
1025 | break; | |
1026 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
1027 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
1028 | break; | |
1029 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
1030 | *subtype = bfd_mach_arm_5TE; | |
1031 | break; | |
1032 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
1033 | *subtype = bfd_mach_arm_XScale; | |
1034 | break; | |
1035 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
1036 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
1037 | break; | |
1038 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
1039 | default: | |
1040 | break; | |
1041 | } | |
0b2de107 TG |
1042 | break; |
1043 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
1044 | *type = bfd_arch_m88k; | |
1045 | break; | |
1e8a024a TG |
1046 | case BFD_MACH_O_CPU_TYPE_SPARC: |
1047 | *type = bfd_arch_sparc; | |
1048 | *subtype = bfd_mach_sparc; | |
1049 | break; | |
0b2de107 TG |
1050 | case BFD_MACH_O_CPU_TYPE_I860: |
1051 | *type = bfd_arch_i860; | |
1052 | break; | |
1053 | case BFD_MACH_O_CPU_TYPE_ALPHA: | |
1054 | *type = bfd_arch_alpha; | |
1055 | break; | |
1e8a024a TG |
1056 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
1057 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1058 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
1059 | break; |
1060 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
1061 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1062 | *subtype = bfd_mach_ppc64; |
1e8a024a | 1063 | break; |
d8028530 TG |
1064 | case BFD_MACH_O_CPU_TYPE_ARM64: |
1065 | *type = bfd_arch_aarch64; | |
1066 | *subtype = bfd_mach_aarch64; | |
1067 | break; | |
3af9a47b | 1068 | default: |
1e8a024a TG |
1069 | *type = bfd_arch_unknown; |
1070 | break; | |
3af9a47b NC |
1071 | } |
1072 | } | |
a95a4550 | 1073 | |
c9ffd2ea TG |
1074 | /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the |
1075 | number of bytes written or -1 in case of error. */ | |
1076 | ||
1077 | static int | |
1078 | bfd_mach_o_pad4 (bfd *abfd, unsigned int len) | |
1079 | { | |
1080 | if (len % 4 != 0) | |
1081 | { | |
1082 | char pad[4] = {0,0,0,0}; | |
1083 | unsigned int padlen = 4 - (len % 4); | |
1084 | ||
1085 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1086 | return -1; | |
1087 | ||
1088 | return padlen; | |
1089 | } | |
1090 | else | |
1091 | return 0; | |
1092 | } | |
1093 | ||
1094 | /* Likewise, but for a command. */ | |
1095 | ||
1096 | static int | |
1097 | bfd_mach_o_pad_command (bfd *abfd, unsigned int len) | |
1098 | { | |
1099 | unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
1100 | ||
1101 | if (len % align != 0) | |
1102 | { | |
1103 | char pad[8] = {0}; | |
1104 | unsigned int padlen = align - (len % align); | |
1105 | ||
1106 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1107 | return -1; | |
1108 | ||
1109 | return padlen; | |
1110 | } | |
1111 | else | |
1112 | return 0; | |
1113 | } | |
1114 | ||
154a1ee5 | 1115 | static bfd_boolean |
116c20d2 NC |
1116 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
1117 | { | |
46d1c23b | 1118 | struct mach_o_header_external raw; |
1e8a024a TG |
1119 | unsigned int size; |
1120 | ||
c2f09c75 | 1121 | size = mach_o_wide_p (header) ? |
154a1ee5 | 1122 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 1123 | |
46d1c23b TG |
1124 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
1125 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
1126 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
1127 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
1128 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
1129 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
1130 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 1131 | |
c2f09c75 | 1132 | if (mach_o_wide_p (header)) |
46d1c23b | 1133 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 1134 | |
c2f09c75 | 1135 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1136 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 1137 | return FALSE; |
116c20d2 | 1138 | |
154a1ee5 | 1139 | return TRUE; |
116c20d2 NC |
1140 | } |
1141 | ||
452216ab | 1142 | static bfd_boolean |
ab273af8 | 1143 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
1144 | { |
1145 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1146 | unsigned int i; | |
46d1c23b | 1147 | struct mach_o_thread_command_external raw; |
92bc0e80 | 1148 | unsigned int offset; |
116c20d2 NC |
1149 | |
1150 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1151 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1152 | ||
c9ffd2ea | 1153 | offset = BFD_MACH_O_LC_SIZE; |
116c20d2 NC |
1154 | for (i = 0; i < cmd->nflavours; i++) |
1155 | { | |
1156 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b | 1157 | BFD_ASSERT (cmd->flavours[i].offset == |
07d6d2b8 | 1158 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); |
116c20d2 | 1159 | |
46d1c23b TG |
1160 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
1161 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 1162 | |
c2f09c75 | 1163 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 1164 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 1165 | return FALSE; |
116c20d2 | 1166 | |
46d1c23b | 1167 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
1168 | } |
1169 | ||
452216ab | 1170 | return TRUE; |
116c20d2 NC |
1171 | } |
1172 | ||
c9ffd2ea TG |
1173 | static bfd_boolean |
1174 | bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command) | |
1175 | { | |
1176 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
1177 | struct mach_o_str_command_external raw; | |
1178 | unsigned int namelen; | |
1179 | ||
1180 | bfd_h_put_32 (abfd, cmd->name_offset, raw.str); | |
1181 | ||
1182 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1183 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1184 | return FALSE; | |
1185 | ||
1186 | namelen = strlen (cmd->name_str) + 1; | |
1187 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1188 | return FALSE; | |
1189 | ||
1190 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1191 | return FALSE; | |
1192 | ||
1193 | return TRUE; | |
1194 | } | |
1195 | ||
1196 | static bfd_boolean | |
1197 | bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command) | |
1198 | { | |
1199 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
1200 | struct mach_o_dylib_command_external raw; | |
1201 | unsigned int namelen; | |
1202 | ||
1203 | bfd_h_put_32 (abfd, cmd->name_offset, raw.name); | |
1204 | bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp); | |
1205 | bfd_h_put_32 (abfd, cmd->current_version, raw.current_version); | |
1206 | bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version); | |
1207 | ||
1208 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1209 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1210 | return FALSE; | |
1211 | ||
1212 | namelen = strlen (cmd->name_str) + 1; | |
1213 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1214 | return FALSE; | |
1215 | ||
1216 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1217 | return FALSE; | |
1218 | ||
1219 | return TRUE; | |
1220 | } | |
1221 | ||
1222 | static bfd_boolean | |
1223 | bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command) | |
1224 | { | |
1225 | bfd_mach_o_main_command *cmd = &command->command.main; | |
1226 | struct mach_o_entry_point_command_external raw; | |
1227 | ||
1228 | bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff); | |
1229 | bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize); | |
1230 | ||
1231 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1232 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1233 | return FALSE; | |
1234 | ||
1235 | return TRUE; | |
1236 | } | |
1237 | ||
1238 | static bfd_boolean | |
1239 | bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) | |
1240 | { | |
1241 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
1242 | struct mach_o_dyld_info_command_external raw; | |
1243 | ||
1244 | bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off); | |
1245 | bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size); | |
1246 | bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off); | |
1247 | bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size); | |
1248 | bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off); | |
1249 | bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size); | |
1250 | bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off); | |
1251 | bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size); | |
1252 | bfd_h_put_32 (abfd, cmd->export_off, raw.export_off); | |
1253 | bfd_h_put_32 (abfd, cmd->export_size, raw.export_size); | |
1254 | ||
1255 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1256 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1257 | return FALSE; | |
1258 | ||
1259 | if (cmd->rebase_size != 0) | |
1260 | if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0 | |
1261 | || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) != | |
1262 | cmd->rebase_size)) | |
1263 | return FALSE; | |
1264 | ||
1265 | if (cmd->bind_size != 0) | |
1266 | if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0 | |
1267 | || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) != | |
1268 | cmd->bind_size)) | |
1269 | return FALSE; | |
1270 | ||
1271 | if (cmd->weak_bind_size != 0) | |
1272 | if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0 | |
1273 | || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) != | |
1274 | cmd->weak_bind_size)) | |
1275 | return FALSE; | |
1276 | ||
1277 | if (cmd->lazy_bind_size != 0) | |
1278 | if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0 | |
1279 | || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) != | |
1280 | cmd->lazy_bind_size)) | |
1281 | return FALSE; | |
1282 | ||
1283 | if (cmd->export_size != 0) | |
1284 | if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0 | |
1285 | || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) != | |
1286 | cmd->export_size)) | |
1287 | return FALSE; | |
1288 | ||
1289 | return TRUE; | |
1290 | } | |
1291 | ||
92bc0e80 TG |
1292 | long |
1293 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 1294 | asection *asect) |
92bc0e80 TG |
1295 | { |
1296 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1297 | } | |
1298 | ||
19765f52 IS |
1299 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1300 | of the fields in the relocation information vary per target endian-ness. */ | |
1301 | ||
bcb51645 | 1302 | void |
19765f52 IS |
1303 | bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel, |
1304 | unsigned char *fields) | |
1305 | { | |
1306 | unsigned char info = fields[3]; | |
1307 | ||
1308 | if (bfd_big_endian (abfd)) | |
1309 | { | |
1310 | rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2]; | |
1311 | rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1312 | rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0; | |
68ffbac6 | 1313 | rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT) |
19765f52 IS |
1314 | & BFD_MACH_O_LENGTH_MASK; |
1315 | rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0; | |
1316 | } | |
1317 | else | |
1318 | { | |
1319 | rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0]; | |
1320 | rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1321 | rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0; | |
68ffbac6 | 1322 | rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT) |
19765f52 IS |
1323 | & BFD_MACH_O_LENGTH_MASK; |
1324 | rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0; | |
1325 | } | |
1326 | } | |
1327 | ||
bcb51645 TG |
1328 | /* Set syms_ptr_ptr and addend of RES. */ |
1329 | ||
1330 | bfd_boolean | |
1331 | bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd, | |
1332 | bfd_mach_o_reloc_info *reloc, | |
1333 | arelent *res, asymbol **syms) | |
92bc0e80 | 1334 | { |
046b007d | 1335 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bcb51645 | 1336 | unsigned int num; |
b32e07d7 TG |
1337 | asymbol **sym; |
1338 | ||
bcb51645 TG |
1339 | /* Non-scattered relocation. */ |
1340 | reloc->r_scattered = 0; | |
1341 | res->addend = 0; | |
1342 | ||
1343 | num = reloc->r_value; | |
1344 | ||
1345 | if (reloc->r_extern) | |
1346 | { | |
1347 | /* PR 17512: file: 8396-1185-0.004. */ | |
1348 | if (num >= (unsigned) bfd_mach_o_count_symbols (abfd)) | |
1349 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1350 | else if (syms == NULL) | |
1351 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1352 | else | |
1353 | /* An external symbol number. */ | |
1354 | sym = syms + num; | |
1355 | } | |
1356 | else if (num == 0x00ffffff || num == 0) | |
1357 | { | |
1358 | /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this | |
1359 | is generic code, we don't know wether this is really a PAIR. | |
1360 | This value is almost certainly not a valid section number, hence | |
1361 | this specific case to avoid an assertion failure. | |
1362 | Target specific swap_reloc_in routine should adjust that. */ | |
1363 | sym = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1364 | } | |
1365 | else | |
1366 | { | |
1367 | /* PR 17512: file: 006-2964-0.004. */ | |
1368 | if (num > mdata->nsects) | |
1369 | return FALSE; | |
1370 | ||
1371 | /* A section number. */ | |
1372 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1373 | /* For a symbol defined in section S, the addend (stored in the | |
1374 | binary) contains the address of the section. To comply with | |
1375 | bfd convention, subtract the section address. | |
1376 | Use the address from the header, so that the user can modify | |
07d6d2b8 | 1377 | the vma of the section. */ |
bcb51645 TG |
1378 | res->addend = -mdata->sections[num - 1]->addr; |
1379 | } | |
1380 | ||
1381 | /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset | |
1382 | in the lower 16bits of the address value. So we have to find the | |
1383 | 'symbol' from the preceding reloc. We do this even though the | |
1384 | section symbol is probably not needed here, because NULL symbol | |
1385 | values cause an assert in generic BFD code. This must be done in | |
1386 | the PPC swap_reloc_in routine. */ | |
1387 | res->sym_ptr_ptr = sym; | |
1388 | ||
1389 | return TRUE; | |
1390 | } | |
1391 | ||
1392 | /* Do most of the work for canonicalize_relocs on RAW: create internal | |
1393 | representation RELOC and set most fields of RES using symbol table SYMS. | |
1394 | Each target still has to set the howto of RES and possibly adjust other | |
1395 | fields. | |
1396 | Previously the Mach-O hook point was simply swap_in, but some targets | |
1397 | (like arm64) don't follow the generic rules (symnum is a value for the | |
1398 | non-scattered relocation ADDEND). */ | |
1399 | ||
1400 | bfd_boolean | |
1401 | bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd, | |
1402 | struct mach_o_reloc_info_external *raw, | |
1403 | bfd_mach_o_reloc_info *reloc, | |
1404 | arelent *res, asymbol **syms) | |
1405 | { | |
1406 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1407 | bfd_vma addr; | |
1408 | ||
46d1c23b | 1409 | addr = bfd_get_32 (abfd, raw->r_address); |
19765f52 IS |
1410 | res->sym_ptr_ptr = NULL; |
1411 | res->addend = 0; | |
f4716ee2 | 1412 | |
b32e07d7 TG |
1413 | if (addr & BFD_MACH_O_SR_SCATTERED) |
1414 | { | |
1415 | unsigned int j; | |
19765f52 | 1416 | bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum); |
b32e07d7 | 1417 | |
19765f52 | 1418 | /* Scattered relocation, can't be extern. */ |
bcb51645 TG |
1419 | reloc->r_scattered = 1; |
1420 | reloc->r_extern = 0; | |
19765f52 IS |
1421 | |
1422 | /* Extract section and offset from r_value (symnum). */ | |
bcb51645 | 1423 | reloc->r_value = symnum; |
19765f52 IS |
1424 | /* FIXME: This breaks when a symbol in a reloc exactly follows the |
1425 | end of the data for the section (e.g. in a calculation of section | |
1426 | data length). At present, the symbol will end up associated with | |
1427 | the following section or, if it falls within alignment padding, as | |
1428 | null - which will assert later. */ | |
b32e07d7 | 1429 | for (j = 0; j < mdata->nsects; j++) |
07d6d2b8 AM |
1430 | { |
1431 | bfd_mach_o_section *sect = mdata->sections[j]; | |
1432 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
1433 | { | |
1434 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1435 | res->addend = symnum - sect->addr; | |
1436 | break; | |
1437 | } | |
1438 | } | |
19765f52 IS |
1439 | |
1440 | /* Extract the info and address fields from r_address. */ | |
bcb51645 TG |
1441 | reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
1442 | reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1443 | reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
1444 | reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr); | |
19765f52 | 1445 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); |
b32e07d7 TG |
1446 | } |
1447 | else | |
1448 | { | |
19765f52 | 1449 | /* Non-scattered relocation. */ |
bcb51645 TG |
1450 | reloc->r_scattered = 0; |
1451 | reloc->r_address = addr; | |
1452 | res->address = addr; | |
f4716ee2 | 1453 | |
19765f52 | 1454 | /* The value and info fields have to be extracted dependent on target |
07d6d2b8 | 1455 | endian-ness. */ |
bcb51645 | 1456 | bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum); |
19765f52 | 1457 | |
bcb51645 TG |
1458 | if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc, |
1459 | res, syms)) | |
1460 | return FALSE; | |
b32e07d7 | 1461 | } |
f4716ee2 TG |
1462 | |
1463 | /* We have set up a reloc with all the information present, so the swapper | |
1464 | can modify address, value and addend fields, if necessary, to convey | |
1465 | information in the generic BFD reloc that is mach-o specific. */ | |
19765f52 | 1466 | |
bcb51645 | 1467 | return TRUE; |
b32e07d7 TG |
1468 | } |
1469 | ||
1470 | static int | |
1471 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
07d6d2b8 AM |
1472 | unsigned long count, |
1473 | arelent *res, asymbol **syms) | |
b32e07d7 | 1474 | { |
bcb51645 | 1475 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
92bc0e80 | 1476 | unsigned long i; |
46d1c23b | 1477 | struct mach_o_reloc_info_external *native_relocs; |
92bc0e80 TG |
1478 | bfd_size_type native_size; |
1479 | ||
92bc0e80 | 1480 | /* Allocate and read relocs. */ |
b32e07d7 | 1481 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
033539e2 | 1482 | |
64d29018 NC |
1483 | /* PR 17512: file: 09477b57. */ |
1484 | if (native_size < count) | |
1485 | return -1; | |
1486 | ||
46d1c23b TG |
1487 | native_relocs = |
1488 | (struct mach_o_reloc_info_external *) bfd_malloc (native_size); | |
92bc0e80 TG |
1489 | if (native_relocs == NULL) |
1490 | return -1; | |
1491 | ||
b32e07d7 | 1492 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
92bc0e80 | 1493 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
b32e07d7 TG |
1494 | goto err; |
1495 | ||
1496 | for (i = 0; i < count; i++) | |
92bc0e80 | 1497 | { |
bcb51645 | 1498 | if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i], |
ca4cf9b9 | 1499 | &res[i], syms, res)) |
07d6d2b8 | 1500 | goto err; |
92bc0e80 | 1501 | } |
b32e07d7 TG |
1502 | free (native_relocs); |
1503 | return i; | |
1504 | err: | |
1505 | free (native_relocs); | |
1506 | return -1; | |
1507 | } | |
1508 | ||
1509 | long | |
1510 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
07d6d2b8 | 1511 | arelent **rels, asymbol **syms) |
b32e07d7 TG |
1512 | { |
1513 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1514 | unsigned long i; | |
1515 | arelent *res; | |
1516 | ||
1517 | if (asect->reloc_count == 0) | |
1518 | return 0; | |
1519 | ||
1520 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1521 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 | 1522 | return 0; |
92bc0e80 | 1523 | |
dff55db0 | 1524 | if (asect->relocation == NULL) |
92bc0e80 | 1525 | { |
64d29018 NC |
1526 | if (asect->reloc_count * sizeof (arelent) < asect->reloc_count) |
1527 | return -1; | |
dff55db0 TG |
1528 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); |
1529 | if (res == NULL) | |
07d6d2b8 | 1530 | return -1; |
dff55db0 TG |
1531 | |
1532 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
07d6d2b8 AM |
1533 | asect->reloc_count, res, syms) < 0) |
1534 | { | |
1535 | free (res); | |
1536 | return -1; | |
1537 | } | |
dff55db0 | 1538 | asect->relocation = res; |
92bc0e80 TG |
1539 | } |
1540 | ||
dff55db0 | 1541 | res = asect->relocation; |
92bc0e80 | 1542 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1543 | rels[i] = &res[i]; |
1544 | rels[i] = NULL; | |
92bc0e80 | 1545 | |
b32e07d7 TG |
1546 | return i; |
1547 | } | |
92bc0e80 | 1548 | |
b32e07d7 TG |
1549 | long |
1550 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1551 | { | |
1552 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1553 | |
b32e07d7 TG |
1554 | if (mdata->dysymtab == NULL) |
1555 | return 1; | |
dff55db0 | 1556 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1557 | * sizeof (arelent *); |
1558 | } | |
92bc0e80 | 1559 | |
b32e07d7 TG |
1560 | long |
1561 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
07d6d2b8 | 1562 | struct bfd_symbol **syms) |
b32e07d7 TG |
1563 | { |
1564 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1565 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1566 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1567 | unsigned long i; | |
1568 | arelent *res; | |
1569 | ||
1570 | if (dysymtab == NULL) | |
1571 | return 0; | |
1572 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1573 | return 0; | |
1574 | ||
1575 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1576 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 TG |
1577 | return 0; |
1578 | ||
dff55db0 | 1579 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1580 | { |
64d29018 NC |
1581 | if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent) |
1582 | < (dysymtab->nextrel + dysymtab->nlocrel)) | |
1583 | return -1; | |
1584 | ||
dff55db0 | 1585 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) |
07d6d2b8 | 1586 | * sizeof (arelent)); |
dff55db0 | 1587 | if (res == NULL) |
07d6d2b8 | 1588 | return -1; |
b32e07d7 | 1589 | |
dff55db0 | 1590 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
07d6d2b8 AM |
1591 | dysymtab->nextrel, res, syms) < 0) |
1592 | { | |
1593 | free (res); | |
1594 | return -1; | |
1595 | } | |
dff55db0 TG |
1596 | |
1597 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
07d6d2b8 AM |
1598 | dysymtab->nlocrel, |
1599 | res + dysymtab->nextrel, syms) < 0) | |
1600 | { | |
1601 | free (res); | |
1602 | return -1; | |
1603 | } | |
dff55db0 TG |
1604 | |
1605 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1606 | } |
1607 | ||
dff55db0 | 1608 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1609 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1610 | rels[i] = &res[i]; | |
1611 | rels[i] = NULL; | |
92bc0e80 TG |
1612 | return i; |
1613 | } | |
1614 | ||
19765f52 IS |
1615 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1616 | of the fields in the relocation information vary per target endian-ness. */ | |
1617 | ||
1618 | static void | |
1619 | bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields, | |
1620 | bfd_mach_o_reloc_info *rel) | |
1621 | { | |
1622 | unsigned char info = 0; | |
1623 | ||
1624 | BFD_ASSERT (rel->r_type <= 15); | |
1625 | BFD_ASSERT (rel->r_length <= 3); | |
1626 | ||
1627 | if (bfd_big_endian (abfd)) | |
1628 | { | |
1629 | fields[0] = (rel->r_value >> 16) & 0xff; | |
1630 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1631 | fields[2] = rel->r_value & 0xff; | |
1632 | info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT; | |
1633 | info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0; | |
1634 | info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT; | |
1635 | info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0; | |
1636 | } | |
1637 | else | |
1638 | { | |
1639 | fields[2] = (rel->r_value >> 16) & 0xff; | |
1640 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1641 | fields[0] = rel->r_value & 0xff; | |
1642 | info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT; | |
1643 | info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0; | |
1644 | info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT; | |
1645 | info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0; | |
1646 | } | |
1647 | fields[3] = info; | |
1648 | } | |
1649 | ||
92bc0e80 | 1650 | static bfd_boolean |
ab273af8 | 1651 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1652 | { |
92bc0e80 TG |
1653 | unsigned int i; |
1654 | arelent **entries; | |
1655 | asection *sec; | |
1656 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1657 | ||
1658 | sec = section->bfdsection; | |
1659 | if (sec->reloc_count == 0) | |
1660 | return TRUE; | |
1661 | ||
1662 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1663 | return TRUE; | |
1664 | ||
92bc0e80 TG |
1665 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
1666 | return FALSE; | |
1667 | ||
1668 | /* Convert and write. */ | |
1669 | entries = section->bfdsection->orelocation; | |
1670 | for (i = 0; i < section->nreloc; i++) | |
1671 | { | |
1672 | arelent *rel = entries[i]; | |
46d1c23b | 1673 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1674 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1675 | ||
1676 | /* Convert relocation to an intermediate representation. */ | |
1677 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
07d6d2b8 | 1678 | return FALSE; |
92bc0e80 TG |
1679 | |
1680 | /* Lower the relocation info. */ | |
1681 | if (pinfo->r_scattered) | |
07d6d2b8 AM |
1682 | { |
1683 | unsigned long v; | |
1684 | ||
1685 | v = BFD_MACH_O_SR_SCATTERED | |
1686 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1687 | | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length) | |
1688 | | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type) | |
1689 | | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address); | |
1690 | /* Note: scattered relocs have field in reverse order... */ | |
1691 | bfd_put_32 (abfd, v, raw.r_address); | |
1692 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
1693 | } | |
92bc0e80 | 1694 | else |
07d6d2b8 AM |
1695 | { |
1696 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); | |
1697 | bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum, | |
19765f52 | 1698 | pinfo); |
07d6d2b8 | 1699 | } |
92bc0e80 | 1700 | |
46d1c23b | 1701 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
07d6d2b8 AM |
1702 | != BFD_MACH_O_RELENT_SIZE) |
1703 | return FALSE; | |
92bc0e80 TG |
1704 | } |
1705 | return TRUE; | |
1706 | } | |
1707 | ||
452216ab | 1708 | static bfd_boolean |
ab273af8 | 1709 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1710 | { |
46d1c23b TG |
1711 | struct mach_o_section_32_external raw; |
1712 | ||
1713 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1714 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1715 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1716 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1717 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1718 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1719 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1720 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1721 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1722 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1723 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1724 | ||
1725 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1726 | != BFD_MACH_O_SECTION_SIZE) |
452216ab | 1727 | return FALSE; |
116c20d2 | 1728 | |
452216ab | 1729 | return TRUE; |
116c20d2 NC |
1730 | } |
1731 | ||
452216ab | 1732 | static bfd_boolean |
ab273af8 | 1733 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1734 | { |
46d1c23b TG |
1735 | struct mach_o_section_64_external raw; |
1736 | ||
1737 | memcpy (raw.sectname, section->sectname, 16); | |
1738 | memcpy (raw.segname, section->segname, 16); | |
1739 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1740 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1741 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1742 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1743 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1744 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1745 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1746 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1747 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1748 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1749 | ||
1750 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1751 | != BFD_MACH_O_SECTION_64_SIZE) |
452216ab | 1752 | return FALSE; |
116c20d2 | 1753 | |
452216ab | 1754 | return TRUE; |
1e8a024a TG |
1755 | } |
1756 | ||
452216ab | 1757 | static bfd_boolean |
ab273af8 | 1758 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1759 | { |
46d1c23b | 1760 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1761 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1762 | bfd_mach_o_section *sec; |
1e8a024a | 1763 | |
c2f09c75 TG |
1764 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1765 | ||
f1bde64c TG |
1766 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1767 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1768 | return FALSE; |
c2f09c75 | 1769 | |
46d1c23b TG |
1770 | memcpy (raw.segname, seg->segname, 16); |
1771 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1772 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1773 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1774 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1775 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1776 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1777 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1778 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
68ffbac6 | 1779 | |
46d1c23b TG |
1780 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1781 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1782 | return FALSE; |
1e8a024a | 1783 | |
f1bde64c | 1784 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1785 | if (!bfd_mach_o_write_section_32 (abfd, sec)) |
1786 | return FALSE; | |
1e8a024a | 1787 | |
452216ab | 1788 | return TRUE; |
116c20d2 NC |
1789 | } |
1790 | ||
452216ab | 1791 | static bfd_boolean |
ab273af8 | 1792 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1793 | { |
46d1c23b | 1794 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1795 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1796 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1797 | |
1798 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1799 | ||
f1bde64c TG |
1800 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1801 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1802 | return FALSE; |
c2f09c75 | 1803 | |
46d1c23b TG |
1804 | memcpy (raw.segname, seg->segname, 16); |
1805 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1806 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1807 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1808 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1809 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1810 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1811 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1812 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1813 | ||
1814 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1815 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1816 | return FALSE; |
c2f09c75 | 1817 | |
f1bde64c | 1818 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1819 | if (!bfd_mach_o_write_section_64 (abfd, sec)) |
1820 | return FALSE; | |
c2f09c75 | 1821 | |
452216ab | 1822 | return TRUE; |
1e8a024a TG |
1823 | } |
1824 | ||
c2f09c75 | 1825 | static bfd_boolean |
c9ffd2ea | 1826 | bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym) |
116c20d2 | 1827 | { |
046b007d | 1828 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1829 | unsigned long i; |
c2f09c75 | 1830 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
c2f09c75 TG |
1831 | struct bfd_strtab_hash *strtab; |
1832 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
c9ffd2ea | 1833 | int padlen; |
c2f09c75 TG |
1834 | |
1835 | /* Write the symbols first. */ | |
1836 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) | |
1837 | return FALSE; | |
1838 | ||
c2f09c75 TG |
1839 | strtab = _bfd_stringtab_init (); |
1840 | if (strtab == NULL) | |
1841 | return FALSE; | |
116c20d2 | 1842 | |
a4551119 TG |
1843 | if (sym->nsyms > 0) |
1844 | /* Although we don't strictly need to do this, for compatibility with | |
1845 | Darwin system tools, actually output an empty string for the index | |
1846 | 0 entry. */ | |
1847 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
1848 | ||
116c20d2 NC |
1849 | for (i = 0; i < sym->nsyms; i++) |
1850 | { | |
91d6fa6a | 1851 | bfd_size_type str_index; |
92bc0e80 | 1852 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
68ffbac6 | 1853 | |
92bc0e80 | 1854 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 1855 | /* An index of 0 always means the empty string. */ |
07d6d2b8 | 1856 | str_index = 0; |
c2f09c75 | 1857 | else |
07d6d2b8 AM |
1858 | { |
1859 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); | |
7f307238 | 1860 | |
07d6d2b8 AM |
1861 | if (str_index == (bfd_size_type) -1) |
1862 | goto err; | |
1863 | } | |
46d1c23b | 1864 | |
c2f09c75 | 1865 | if (wide) |
07d6d2b8 AM |
1866 | { |
1867 | struct mach_o_nlist_64_external raw; | |
1868 | ||
1869 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
1870 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1871 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1872 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1873 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
1874 | raw.n_value); | |
1875 | ||
1876 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1877 | goto err; | |
1878 | } | |
c2f09c75 | 1879 | else |
07d6d2b8 AM |
1880 | { |
1881 | struct mach_o_nlist_external raw; | |
116c20d2 | 1882 | |
07d6d2b8 AM |
1883 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
1884 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1885 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1886 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1887 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
1888 | raw.n_value); | |
46d1c23b | 1889 | |
07d6d2b8 AM |
1890 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1891 | goto err; | |
1892 | } | |
116c20d2 | 1893 | } |
c2f09c75 | 1894 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
1895 | sym->stroff = mdata->filelen; |
1896 | mdata->filelen += sym->strsize; | |
116c20d2 | 1897 | |
c9ffd2ea | 1898 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
64d29018 | 1899 | goto err; |
c9ffd2ea | 1900 | |
535b785f | 1901 | if (!_bfd_stringtab_emit (abfd, strtab)) |
c2f09c75 | 1902 | goto err; |
116c20d2 | 1903 | |
c9ffd2ea TG |
1904 | /* Pad string table. */ |
1905 | padlen = bfd_mach_o_pad4 (abfd, sym->strsize); | |
1906 | if (padlen < 0) | |
1907 | return FALSE; | |
1908 | mdata->filelen += padlen; | |
1909 | sym->strsize += padlen; | |
116c20d2 | 1910 | |
c2f09c75 | 1911 | return TRUE; |
116c20d2 | 1912 | |
c2f09c75 TG |
1913 | err: |
1914 | _bfd_stringtab_free (strtab); | |
64d29018 | 1915 | sym->strsize = 0; |
c2f09c75 | 1916 | return FALSE; |
116c20d2 NC |
1917 | } |
1918 | ||
c9ffd2ea TG |
1919 | static bfd_boolean |
1920 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) | |
1921 | { | |
1922 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
1923 | struct mach_o_symtab_command_external raw; | |
1924 | ||
1925 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
1926 | ||
1927 | /* The command. */ | |
1928 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); | |
1929 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
1930 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
1931 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
1932 | ||
1933 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1934 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1935 | return FALSE; | |
1936 | ||
1937 | return TRUE; | |
1938 | } | |
1939 | ||
1940 | /* Count the number of indirect symbols in the image. | |
1941 | Requires that the sections are in their final order. */ | |
1942 | ||
1943 | static unsigned int | |
1944 | bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
1945 | { | |
1946 | unsigned int i; | |
1947 | unsigned int nisyms = 0; | |
1948 | ||
1949 | for (i = 0; i < mdata->nsects; ++i) | |
1950 | { | |
1951 | bfd_mach_o_section *sec = mdata->sections[i]; | |
1952 | ||
1953 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
1954 | { | |
1955 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
1956 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
1957 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
1958 | nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
1959 | break; | |
1960 | default: | |
1961 | break; | |
1962 | } | |
1963 | } | |
1964 | return nisyms; | |
1965 | } | |
1966 | ||
1967 | /* Create the dysymtab. */ | |
1968 | ||
1969 | static bfd_boolean | |
1970 | bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd) | |
1971 | { | |
1972 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1973 | ||
1974 | /* TODO: | |
1975 | We are not going to try and fill these in yet and, moreover, we are | |
1976 | going to bail if they are already set. */ | |
1977 | if (cmd->nmodtab != 0 | |
1978 | || cmd->ntoc != 0 | |
1979 | || cmd->nextrefsyms != 0) | |
1980 | { | |
4eca0228 AM |
1981 | _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet" |
1982 | " implemented for dysymtab commands.")); | |
c9ffd2ea TG |
1983 | return FALSE; |
1984 | } | |
1985 | ||
1986 | cmd->ilocalsym = 0; | |
1987 | ||
1988 | if (bfd_get_symcount (abfd) > 0) | |
1989 | { | |
1990 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1991 | unsigned long i; | |
1992 | ||
1993 | /* Count the number of each kind of symbol. */ | |
1994 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
1995 | { | |
1996 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1997 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
1998 | break; | |
1999 | } | |
2000 | cmd->nlocalsym = i; | |
2001 | cmd->iextdefsym = i; | |
2002 | for (; i < bfd_get_symcount (abfd); ++i) | |
2003 | { | |
2004 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2005 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
2006 | break; | |
2007 | } | |
2008 | cmd->nextdefsym = i - cmd->nlocalsym; | |
2009 | cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym; | |
2010 | cmd->nundefsym = bfd_get_symcount (abfd) | |
2011 | - cmd->nlocalsym | |
2012 | - cmd->nextdefsym; | |
2013 | } | |
2014 | else | |
2015 | { | |
2016 | cmd->nlocalsym = 0; | |
2017 | cmd->iextdefsym = 0; | |
2018 | cmd->nextdefsym = 0; | |
2019 | cmd->iundefsym = 0; | |
2020 | cmd->nundefsym = 0; | |
2021 | } | |
2022 | ||
2023 | cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata); | |
2024 | if (cmd->nindirectsyms > 0) | |
2025 | { | |
2026 | unsigned i; | |
2027 | unsigned n; | |
2028 | ||
2029 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2030 | cmd->indirectsymoff = mdata->filelen; | |
2031 | mdata->filelen += cmd->nindirectsyms * 4; | |
2032 | ||
64d29018 NC |
2033 | if (cmd->nindirectsyms * 4 < cmd->nindirectsyms) |
2034 | return FALSE; | |
c9ffd2ea TG |
2035 | cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4); |
2036 | if (cmd->indirect_syms == NULL) | |
07d6d2b8 | 2037 | return FALSE; |
c9ffd2ea TG |
2038 | |
2039 | n = 0; | |
2040 | for (i = 0; i < mdata->nsects; ++i) | |
2041 | { | |
2042 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2043 | ||
2044 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2045 | { | |
2046 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2047 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2048 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2049 | { | |
2050 | unsigned j, num; | |
2051 | bfd_mach_o_asymbol **isyms = sec->indirect_syms; | |
2052 | ||
2053 | num = bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2054 | if (isyms == NULL || num == 0) | |
2055 | break; | |
2056 | /* Record the starting index in the reserved1 field. */ | |
2057 | sec->reserved1 = n; | |
2058 | for (j = 0; j < num; j++, n++) | |
2059 | { | |
2060 | if (isyms[j] == NULL) | |
07d6d2b8 | 2061 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL; |
c9ffd2ea TG |
2062 | else if (isyms[j]->symbol.section == bfd_abs_section_ptr |
2063 | && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT)) | |
07d6d2b8 | 2064 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL |
c9ffd2ea TG |
2065 | | BFD_MACH_O_INDIRECT_SYM_ABS; |
2066 | else | |
07d6d2b8 | 2067 | cmd->indirect_syms[n] = isyms[j]->symbol.udata.i; |
c9ffd2ea TG |
2068 | } |
2069 | } | |
2070 | break; | |
2071 | default: | |
2072 | break; | |
2073 | } | |
2074 | } | |
2075 | } | |
2076 | ||
2077 | return TRUE; | |
2078 | } | |
2079 | ||
7f307238 IS |
2080 | /* Write a dysymtab command. |
2081 | TODO: Possibly coalesce writes of smaller objects. */ | |
2082 | ||
2083 | static bfd_boolean | |
2084 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2085 | { | |
2086 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
2087 | ||
2088 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
2089 | ||
2090 | if (cmd->nmodtab != 0) | |
2091 | { | |
2092 | unsigned int i; | |
2093 | ||
2094 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
2095 | return FALSE; | |
2096 | ||
2097 | for (i = 0; i < cmd->nmodtab; i++) | |
2098 | { | |
2099 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
2100 | unsigned int iinit; | |
2101 | unsigned int ninit; | |
2102 | ||
2103 | iinit = module->iinit & 0xffff; | |
2104 | iinit |= ((module->iterm & 0xffff) << 16); | |
2105 | ||
2106 | ninit = module->ninit & 0xffff; | |
2107 | ninit |= ((module->nterm & 0xffff) << 16); | |
2108 | ||
2109 | if (bfd_mach_o_wide_p (abfd)) | |
2110 | { | |
2111 | struct mach_o_dylib_module_64_external w; | |
2112 | ||
2113 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
2114 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
2115 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
2116 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
2117 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
2118 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
2119 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
2120 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
2121 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
2122 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
2123 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
2124 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
2125 | &w.objc_module_info_addr); | |
2126 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2127 | &w.objc_module_info_size); | |
2128 | ||
2129 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
2130 | return FALSE; | |
2131 | } | |
2132 | else | |
2133 | { | |
2134 | struct mach_o_dylib_module_external n; | |
2135 | ||
2136 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
2137 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
2138 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
2139 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
2140 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
2141 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
2142 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
2143 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
2144 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
2145 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
2146 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
2147 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
2148 | &n.objc_module_info_addr); | |
2149 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2150 | &n.objc_module_info_size); | |
2151 | ||
2152 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
2153 | return FALSE; | |
2154 | } | |
2155 | } | |
2156 | } | |
2157 | ||
2158 | if (cmd->ntoc != 0) | |
2159 | { | |
2160 | unsigned int i; | |
2161 | ||
2162 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
2163 | return FALSE; | |
2164 | ||
2165 | for (i = 0; i < cmd->ntoc; i++) | |
2166 | { | |
2167 | struct mach_o_dylib_table_of_contents_external raw; | |
2168 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
2169 | ||
2170 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
2171 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
2172 | ||
2173 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2174 | return FALSE; | |
2175 | } | |
2176 | } | |
68ffbac6 | 2177 | |
7f307238 IS |
2178 | if (cmd->nindirectsyms > 0) |
2179 | { | |
2180 | unsigned int i; | |
2181 | ||
2182 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
2183 | return FALSE; | |
2184 | ||
2185 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
2186 | { | |
2187 | unsigned char raw[4]; | |
2188 | ||
2189 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
2190 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2191 | return FALSE; | |
68ffbac6 | 2192 | } |
7f307238 IS |
2193 | } |
2194 | ||
2195 | if (cmd->nextrefsyms != 0) | |
2196 | { | |
2197 | unsigned int i; | |
2198 | ||
2199 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
2200 | return FALSE; | |
2201 | ||
2202 | for (i = 0; i < cmd->nextrefsyms; i++) | |
2203 | { | |
2204 | unsigned long v; | |
2205 | unsigned char raw[4]; | |
2206 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
2207 | ||
2208 | /* Fields isym and flags are written as bit-fields, thus we need | |
2209 | a specific processing for endianness. */ | |
2210 | ||
2211 | if (bfd_big_endian (abfd)) | |
2212 | { | |
2213 | v = ((ref->isym & 0xffffff) << 8); | |
2214 | v |= ref->flags & 0xff; | |
2215 | } | |
2216 | else | |
2217 | { | |
2218 | v = ref->isym & 0xffffff; | |
2219 | v |= ((ref->flags & 0xff) << 24); | |
2220 | } | |
2221 | ||
2222 | bfd_h_put_32 (abfd, v, raw); | |
2223 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2224 | return FALSE; | |
2225 | } | |
2226 | } | |
2227 | ||
2228 | /* The command. */ | |
2229 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
2230 | return FALSE; | |
2231 | else | |
2232 | { | |
2233 | struct mach_o_dysymtab_command_external raw; | |
2234 | ||
2235 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
2236 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
2237 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
2238 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
2239 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
2240 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
2241 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
2242 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
2243 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
2244 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
2245 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
2246 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
2247 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
2248 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
2249 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
2250 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
2251 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
2252 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
2253 | ||
2254 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2255 | return FALSE; | |
2256 | } | |
2257 | ||
2258 | return TRUE; | |
2259 | } | |
2260 | ||
2261 | static unsigned | |
b22161d6 | 2262 | bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s) |
7f307238 | 2263 | { |
b22161d6 | 2264 | unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE; |
68588f95 IS |
2265 | |
2266 | /* Just leave debug symbols where they are (pretend they are local, and | |
2267 | then they will just be sorted on position). */ | |
b22161d6 | 2268 | if (s->n_type & BFD_MACH_O_N_STAB) |
68588f95 IS |
2269 | return 0; |
2270 | ||
7f307238 | 2271 | /* Local (we should never see an undefined local AFAICT). */ |
b22161d6 | 2272 | if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
2273 | return 0; |
2274 | ||
2275 | /* Common symbols look like undefined externs. */ | |
68588f95 | 2276 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
2277 | return 2; |
2278 | ||
b22161d6 | 2279 | /* A defined non-local, non-debug symbol. */ |
7f307238 IS |
2280 | return 1; |
2281 | } | |
2282 | ||
2283 | static int | |
2284 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
2285 | { | |
2286 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
2287 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
2288 | unsigned int soa, sob; | |
2289 | ||
b22161d6 IS |
2290 | soa = bfd_mach_o_primary_symbol_sort_key (sa); |
2291 | sob = bfd_mach_o_primary_symbol_sort_key (sb); | |
7f307238 IS |
2292 | if (soa < sob) |
2293 | return -1; | |
2294 | ||
2295 | if (soa > sob) | |
2296 | return 1; | |
2297 | ||
68588f95 | 2298 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
2299 | if (soa == 0) |
2300 | { | |
2301 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
07d6d2b8 | 2302 | return -1; |
7f307238 | 2303 | if (sa->symbol.udata.i > sb->symbol.udata.i) |
07d6d2b8 | 2304 | return 1; |
b22161d6 IS |
2305 | |
2306 | /* This is probably an error. */ | |
7f307238 IS |
2307 | return 0; |
2308 | } | |
2309 | ||
b22161d6 IS |
2310 | /* The second sort key is name. */ |
2311 | return strcmp (sa->symbol.name, sb->symbol.name); | |
7f307238 IS |
2312 | } |
2313 | ||
2314 | /* Process the symbols. | |
2315 | ||
2316 | This should be OK for single-module files - but it is not likely to work | |
2317 | for multi-module shared libraries. | |
2318 | ||
2319 | (a) If the application has not filled in the relevant mach-o fields, make | |
2320 | an estimate. | |
2321 | ||
2322 | (b) Order them, like this: | |
2323 | ( i) local. | |
2324 | (unsorted) | |
2325 | ( ii) external defined | |
2326 | (by name) | |
b22161d6 | 2327 | (iii) external undefined/common |
7f307238 IS |
2328 | (by name) |
2329 | ( iv) common | |
2330 | (by name) | |
b22161d6 | 2331 | */ |
92bc0e80 TG |
2332 | |
2333 | static bfd_boolean | |
b22161d6 | 2334 | bfd_mach_o_mangle_symbols (bfd *abfd) |
92bc0e80 TG |
2335 | { |
2336 | unsigned long i; | |
2337 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2338 | ||
7f307238 IS |
2339 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
2340 | return TRUE; | |
2341 | ||
92bc0e80 TG |
2342 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
2343 | { | |
2344 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2345 | ||
b22161d6 IS |
2346 | /* We use this value, which is out-of-range as a symbol index, to signal |
2347 | that the mach-o-specific data are not filled in and need to be created | |
2348 | from the bfd values. It is much preferable for the application to do | |
2349 | this, since more meaningful diagnostics can be made that way. */ | |
2350 | ||
2351 | if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET) | |
07d6d2b8 AM |
2352 | { |
2353 | /* No symbol information has been set - therefore determine | |
2354 | it from the bfd symbol flags/info. */ | |
2355 | if (s->symbol.section == bfd_abs_section_ptr) | |
2356 | s->n_type = BFD_MACH_O_N_ABS; | |
2357 | else if (s->symbol.section == bfd_und_section_ptr) | |
2358 | { | |
2359 | s->n_type = BFD_MACH_O_N_UNDF; | |
2360 | if (s->symbol.flags & BSF_WEAK) | |
2361 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
2362 | /* mach-o automatically makes undefined symbols extern. */ | |
7f307238 | 2363 | s->n_type |= BFD_MACH_O_N_EXT; |
b22161d6 | 2364 | s->symbol.flags |= BSF_GLOBAL; |
07d6d2b8 AM |
2365 | } |
2366 | else if (s->symbol.section == bfd_com_section_ptr) | |
b22161d6 | 2367 | { |
07d6d2b8 AM |
2368 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; |
2369 | s->symbol.flags |= BSF_GLOBAL; | |
2370 | } | |
2371 | else | |
2372 | s->n_type = BFD_MACH_O_N_SECT; | |
68ffbac6 | 2373 | |
07d6d2b8 AM |
2374 | if (s->symbol.flags & BSF_GLOBAL) |
2375 | s->n_type |= BFD_MACH_O_N_EXT; | |
2376 | } | |
92bc0e80 | 2377 | |
7f307238 | 2378 | /* Put the section index in, where required. */ |
68588f95 | 2379 | if ((s->symbol.section != bfd_abs_section_ptr |
07d6d2b8 AM |
2380 | && s->symbol.section != bfd_und_section_ptr |
2381 | && s->symbol.section != bfd_com_section_ptr) | |
2382 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 | |
2383 | && s->symbol.name == NULL)) | |
707e555b | 2384 | s->n_sect = s->symbol.section->output_section->target_index; |
92bc0e80 | 2385 | |
b22161d6 IS |
2386 | /* Number to preserve order for local and debug syms. */ |
2387 | s->symbol.udata.i = i; | |
7f307238 IS |
2388 | } |
2389 | ||
b22161d6 IS |
2390 | /* Sort the symbols. */ |
2391 | qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd), | |
2392 | sizeof (asymbol *), bfd_mach_o_cf_symbols); | |
7f307238 | 2393 | |
b22161d6 IS |
2394 | for (i = 0; i < bfd_get_symcount (abfd); ++i) |
2395 | { | |
2396 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2397 | s->symbol.udata.i = i; /* renumber. */ | |
7f307238 IS |
2398 | } |
2399 | ||
2400 | return TRUE; | |
2401 | } | |
2402 | ||
2403 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
2404 | Fill in the section number and other mach-o-specific data. */ | |
2405 | ||
2406 | static bfd_boolean | |
2407 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2408 | { | |
2409 | asection *sec; | |
2410 | unsigned target_index; | |
2411 | unsigned nsect; | |
2412 | ||
2413 | nsect = bfd_count_sections (abfd); | |
68ffbac6 | 2414 | |
7f307238 IS |
2415 | /* Don't do it if it's already set - assume the application knows what it's |
2416 | doing. */ | |
2417 | if (mdata->nsects == nsect | |
2418 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
2419 | return TRUE; | |
2420 | ||
a1165289 NC |
2421 | /* We need to check that this can be done... */ |
2422 | if (nsect > 255) | |
2423 | { | |
4eca0228 AM |
2424 | _bfd_error_handler (_("mach-o: there are too many sections (%u)" |
2425 | " maximum is 255,\n"), nsect); | |
a1165289 NC |
2426 | return FALSE; |
2427 | } | |
2428 | ||
7f307238 | 2429 | mdata->nsects = nsect; |
64d29018 NC |
2430 | mdata->sections = bfd_alloc2 (abfd, |
2431 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
7f307238 IS |
2432 | if (mdata->sections == NULL) |
2433 | return FALSE; | |
2434 | ||
7f307238 | 2435 | /* Create Mach-O sections. |
68ffbac6 | 2436 | Section type, attribute and align should have been set when the |
7f307238 IS |
2437 | section was created - either read in or specified. */ |
2438 | target_index = 0; | |
2439 | for (sec = abfd->sections; sec; sec = sec->next) | |
2440 | { | |
2441 | unsigned bfd_align = bfd_get_section_alignment (abfd, sec); | |
2442 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); | |
2443 | ||
2444 | mdata->sections[target_index] = msect; | |
2445 | ||
2446 | msect->addr = bfd_get_section_vma (abfd, sec); | |
2447 | msect->size = bfd_get_section_size (sec); | |
2448 | ||
68ffbac6 | 2449 | /* Use the largest alignment set, in case it was bumped after the |
7f307238 IS |
2450 | section was created. */ |
2451 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
2452 | ||
2453 | msect->offset = 0; | |
2454 | sec->target_index = ++target_index; | |
92bc0e80 | 2455 | } |
7f307238 | 2456 | |
92bc0e80 TG |
2457 | return TRUE; |
2458 | } | |
2459 | ||
154a1ee5 | 2460 | bfd_boolean |
116c20d2 | 2461 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b | 2462 | { |
046b007d | 2463 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
2464 | bfd_mach_o_load_command *cmd; |
2465 | bfd_mach_o_symtab_command *symtab = NULL; | |
2466 | bfd_mach_o_dysymtab_command *dysymtab = NULL; | |
2467 | bfd_mach_o_segment_command *linkedit = NULL; | |
3af9a47b | 2468 | |
7f307238 | 2469 | /* Make the commands, if not already present. */ |
c9ffd2ea TG |
2470 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
2471 | return FALSE; | |
2472 | abfd->output_has_begun = TRUE; | |
92bc0e80 | 2473 | |
c9ffd2ea | 2474 | /* Write the header. */ |
154a1ee5 | 2475 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 2476 | return FALSE; |
3af9a47b | 2477 | |
c9ffd2ea TG |
2478 | /* First pass: allocate the linkedit segment. */ |
2479 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
2480 | switch (cmd->type) | |
2481 | { | |
2482 | case BFD_MACH_O_LC_SEGMENT_64: | |
2483 | case BFD_MACH_O_LC_SEGMENT: | |
2484 | if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0) | |
2485 | linkedit = &cmd->command.segment; | |
2486 | break; | |
2487 | case BFD_MACH_O_LC_SYMTAB: | |
2488 | symtab = &cmd->command.symtab; | |
2489 | break; | |
2490 | case BFD_MACH_O_LC_DYSYMTAB: | |
2491 | dysymtab = &cmd->command.dysymtab; | |
2492 | break; | |
2493 | case BFD_MACH_O_LC_DYLD_INFO: | |
2494 | { | |
2495 | bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info; | |
2496 | ||
2497 | if (di->rebase_size != 0) | |
2498 | { | |
2499 | di->rebase_off = mdata->filelen; | |
2500 | mdata->filelen += di->rebase_size; | |
2501 | } | |
2502 | if (di->bind_size != 0) | |
2503 | { | |
2504 | di->bind_off = mdata->filelen; | |
2505 | mdata->filelen += di->bind_size; | |
2506 | } | |
2507 | if (di->weak_bind_size != 0) | |
2508 | { | |
2509 | di->weak_bind_off = mdata->filelen; | |
2510 | mdata->filelen += di->weak_bind_size; | |
2511 | } | |
2512 | if (di->lazy_bind_size != 0) | |
2513 | { | |
2514 | di->lazy_bind_off = mdata->filelen; | |
2515 | mdata->filelen += di->lazy_bind_size; | |
2516 | } | |
2517 | if (di->export_size != 0) | |
2518 | { | |
2519 | di->export_off = mdata->filelen; | |
2520 | mdata->filelen += di->export_size; | |
2521 | } | |
2522 | } | |
2523 | break; | |
2524 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2525 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2526 | case BFD_MACH_O_LC_MAIN: | |
2527 | /* Nothing to do. */ | |
2528 | break; | |
2529 | default: | |
4eca0228 | 2530 | _bfd_error_handler |
d42c267e AM |
2531 | (_("unable to allocate data for load command %#x"), |
2532 | cmd->type); | |
c9ffd2ea TG |
2533 | break; |
2534 | } | |
2535 | ||
2536 | /* Specially handle symtab and dysymtab. */ | |
2537 | ||
2538 | /* Pre-allocate the symbol table (but not the string table). The reason | |
2539 | is that the dysymtab is after the symbol table but before the string | |
2540 | table (required by the native strip tool). */ | |
2541 | if (symtab != NULL) | |
2542 | { | |
2543 | unsigned int symlen; | |
2544 | unsigned int wide = bfd_mach_o_wide_p (abfd); | |
2545 | ||
2546 | symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
2547 | ||
2548 | /* Align for symbols. */ | |
2549 | mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2); | |
2550 | symtab->symoff = mdata->filelen; | |
2551 | ||
2552 | symtab->nsyms = bfd_get_symcount (abfd); | |
2553 | mdata->filelen += symtab->nsyms * symlen; | |
2554 | } | |
2555 | ||
2556 | /* Build the dysymtab. */ | |
2557 | if (dysymtab != NULL) | |
2558 | if (!bfd_mach_o_build_dysymtab (abfd, dysymtab)) | |
2559 | return FALSE; | |
2560 | ||
2561 | /* Write symtab and strtab. */ | |
2562 | if (symtab != NULL) | |
2563 | if (!bfd_mach_o_write_symtab_content (abfd, symtab)) | |
2564 | return FALSE; | |
2565 | ||
2566 | /* Adjust linkedit size. */ | |
2567 | if (linkedit != NULL) | |
2568 | { | |
2569 | /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */ | |
2570 | ||
2571 | linkedit->vmsize = mdata->filelen - linkedit->fileoff; | |
2572 | /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */ | |
2573 | linkedit->filesize = mdata->filelen - linkedit->fileoff; | |
2574 | ||
2575 | linkedit->initprot = BFD_MACH_O_PROT_READ; | |
2576 | linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2577 | | BFD_MACH_O_PROT_EXECUTE; | |
2578 | } | |
2579 | ||
2580 | /* Second pass: write commands. */ | |
2581 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
3af9a47b | 2582 | { |
46d1c23b | 2583 | struct mach_o_load_command_external raw; |
3af9a47b NC |
2584 | unsigned long typeflag; |
2585 | ||
c9ffd2ea | 2586 | typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 2587 | |
46d1c23b | 2588 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
c9ffd2ea | 2589 | bfd_h_put_32 (abfd, cmd->len, raw.cmdsize); |
3af9a47b | 2590 | |
c9ffd2ea | 2591 | if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0 |
07d6d2b8 | 2592 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 2593 | return FALSE; |
3af9a47b | 2594 | |
c9ffd2ea | 2595 | switch (cmd->type) |
3af9a47b NC |
2596 | { |
2597 | case BFD_MACH_O_LC_SEGMENT: | |
c9ffd2ea | 2598 | if (!bfd_mach_o_write_segment_32 (abfd, cmd)) |
1e8a024a TG |
2599 | return FALSE; |
2600 | break; | |
2601 | case BFD_MACH_O_LC_SEGMENT_64: | |
c9ffd2ea | 2602 | if (!bfd_mach_o_write_segment_64 (abfd, cmd)) |
b34976b6 | 2603 | return FALSE; |
3af9a47b NC |
2604 | break; |
2605 | case BFD_MACH_O_LC_SYMTAB: | |
c9ffd2ea | 2606 | if (!bfd_mach_o_write_symtab (abfd, cmd)) |
b34976b6 | 2607 | return FALSE; |
3af9a47b | 2608 | break; |
7f307238 | 2609 | case BFD_MACH_O_LC_DYSYMTAB: |
c9ffd2ea | 2610 | if (!bfd_mach_o_write_dysymtab (abfd, cmd)) |
7f307238 IS |
2611 | return FALSE; |
2612 | break; | |
3af9a47b NC |
2613 | case BFD_MACH_O_LC_THREAD: |
2614 | case BFD_MACH_O_LC_UNIXTHREAD: | |
c9ffd2ea | 2615 | if (!bfd_mach_o_write_thread (abfd, cmd)) |
b34976b6 | 2616 | return FALSE; |
3af9a47b | 2617 | break; |
3af9a47b | 2618 | case BFD_MACH_O_LC_LOAD_DYLIB: |
c9ffd2ea TG |
2619 | if (!bfd_mach_o_write_dylib (abfd, cmd)) |
2620 | return FALSE; | |
2621 | break; | |
3af9a47b | 2622 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
c9ffd2ea TG |
2623 | if (!bfd_mach_o_write_dylinker (abfd, cmd)) |
2624 | return FALSE; | |
2625 | break; | |
2626 | case BFD_MACH_O_LC_MAIN: | |
2627 | if (!bfd_mach_o_write_main (abfd, cmd)) | |
2628 | return FALSE; | |
2629 | break; | |
2630 | case BFD_MACH_O_LC_DYLD_INFO: | |
2631 | if (!bfd_mach_o_write_dyld_info (abfd, cmd)) | |
2632 | return FALSE; | |
3af9a47b NC |
2633 | break; |
2634 | default: | |
4eca0228 | 2635 | _bfd_error_handler |
d42c267e AM |
2636 | (_("unable to write unknown load command %#x"), |
2637 | cmd->type); | |
b34976b6 | 2638 | return FALSE; |
3af9a47b NC |
2639 | } |
2640 | } | |
2641 | ||
b34976b6 | 2642 | return TRUE; |
3af9a47b NC |
2643 | } |
2644 | ||
f1bde64c TG |
2645 | static void |
2646 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
07d6d2b8 | 2647 | bfd_mach_o_section *s) |
f1bde64c | 2648 | { |
f1bde64c TG |
2649 | if (seg->sect_head == NULL) |
2650 | seg->sect_head = s; | |
2651 | else | |
2652 | seg->sect_tail->next = s; | |
2653 | seg->sect_tail = s; | |
2654 | } | |
2655 | ||
2656 | /* Create section Mach-O flags from BFD flags. */ | |
2657 | ||
2658 | static void | |
3cc27770 TG |
2659 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, |
2660 | asection *sec) | |
f1bde64c TG |
2661 | { |
2662 | flagword bfd_flags; | |
2663 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2664 | ||
2665 | /* Create default flags. */ | |
2666 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
2667 | if ((bfd_flags & SEC_CODE) == SEC_CODE) | |
2668 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2669 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2670 | | BFD_MACH_O_S_REGULAR; | |
2671 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2672 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2673 | else if (bfd_flags & SEC_DEBUGGING) | |
2674 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2675 | else | |
2676 | s->flags = BFD_MACH_O_S_REGULAR; | |
2677 | } | |
2678 | ||
7f307238 | 2679 | static bfd_boolean |
c9ffd2ea | 2680 | bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) |
7f307238 | 2681 | { |
c9ffd2ea TG |
2682 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2683 | unsigned int i, j; | |
7f307238 | 2684 | |
7f307238 | 2685 | seg->vmaddr = 0; |
7f307238 | 2686 | seg->fileoff = mdata->filelen; |
c9ffd2ea TG |
2687 | seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE |
2688 | | BFD_MACH_O_PROT_EXECUTE; | |
2689 | seg->maxprot = seg->initprot; | |
7f307238 | 2690 | |
68ffbac6 | 2691 | /* Append sections to the segment. |
09903f4b IS |
2692 | |
2693 | This is a little tedious, we have to honor the need to account zerofill | |
2694 | sections after all the rest. This forces us to do the calculation of | |
68ffbac6 | 2695 | total vmsize in three passes so that any alignment increments are |
09903f4b | 2696 | properly accounted. */ |
7f307238 IS |
2697 | for (i = 0; i < mdata->nsects; ++i) |
2698 | { | |
2699 | bfd_mach_o_section *s = mdata->sections[i]; | |
2700 | asection *sec = s->bfdsection; | |
2701 | ||
09903f4b IS |
2702 | /* Although we account for zerofill section sizes in vm order, they are |
2703 | placed in the file in source sequence. */ | |
c9ffd2ea | 2704 | bfd_mach_o_append_section_to_segment (seg, s); |
e5081f2f | 2705 | s->offset = 0; |
68ffbac6 | 2706 | |
c9ffd2ea TG |
2707 | /* Zerofill sections have zero file size & offset, the only content |
2708 | written to the file is the symbols. */ | |
e5081f2f | 2709 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL |
07d6d2b8 | 2710 | || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2711 | == BFD_MACH_O_S_GB_ZEROFILL)) |
07d6d2b8 | 2712 | continue; |
e5081f2f | 2713 | |
c9ffd2ea TG |
2714 | /* The Darwin system tools (in MH_OBJECT files, at least) always account |
2715 | sections, even those with zero size. */ | |
e5081f2f | 2716 | if (s->size > 0) |
c9ffd2ea | 2717 | { |
09903f4b IS |
2718 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); |
2719 | seg->vmsize += s->size; | |
2720 | ||
c9ffd2ea TG |
2721 | /* MH_OBJECT files have unaligned content. */ |
2722 | if (1) | |
2723 | { | |
2724 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
07d6d2b8 AM |
2725 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2726 | } | |
09903f4b IS |
2727 | seg->filesize += s->size; |
2728 | ||
c9ffd2ea TG |
2729 | /* The system tools write even zero-sized sections with an offset |
2730 | field set to the current file position. */ | |
07d6d2b8 | 2731 | s->offset = mdata->filelen; |
c9ffd2ea | 2732 | } |
7f307238 IS |
2733 | |
2734 | sec->filepos = s->offset; | |
7f307238 IS |
2735 | mdata->filelen += s->size; |
2736 | } | |
2737 | ||
3cc27770 | 2738 | /* Now pass through again, for zerofill, only now we just update the |
c9ffd2ea TG |
2739 | vmsize, and then for zerofill_GB. */ |
2740 | for (j = 0; j < 2; j++) | |
09903f4b | 2741 | { |
c9ffd2ea | 2742 | unsigned int stype; |
68ffbac6 | 2743 | |
c9ffd2ea TG |
2744 | if (j == 0) |
2745 | stype = BFD_MACH_O_S_ZEROFILL; | |
2746 | else | |
2747 | stype = BFD_MACH_O_S_GB_ZEROFILL; | |
09903f4b | 2748 | |
c9ffd2ea TG |
2749 | for (i = 0; i < mdata->nsects; ++i) |
2750 | { | |
2751 | bfd_mach_o_section *s = mdata->sections[i]; | |
2752 | ||
2753 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype) | |
2754 | continue; | |
2755 | ||
2756 | if (s->size > 0) | |
2757 | { | |
2758 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2759 | seg->vmsize += s->size; | |
2760 | } | |
09903f4b IS |
2761 | } |
2762 | } | |
bb76d940 | 2763 | |
09903f4b | 2764 | /* Allocate space for the relocations. */ |
707e555b | 2765 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); |
bb76d940 IS |
2766 | |
2767 | for (i = 0; i < mdata->nsects; ++i) | |
2768 | { | |
2769 | bfd_mach_o_section *ms = mdata->sections[i]; | |
2770 | asection *sec = ms->bfdsection; | |
68ffbac6 | 2771 | |
c9ffd2ea TG |
2772 | ms->nreloc = sec->reloc_count; |
2773 | if (ms->nreloc == 0) | |
07d6d2b8 | 2774 | { |
c9ffd2ea | 2775 | /* Clear nreloc and reloff if there is no relocs. */ |
bb76d940 IS |
2776 | ms->reloff = 0; |
2777 | continue; | |
07d6d2b8 | 2778 | } |
bb76d940 IS |
2779 | sec->rel_filepos = mdata->filelen; |
2780 | ms->reloff = sec->rel_filepos; | |
2781 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
2782 | } | |
7f307238 IS |
2783 | |
2784 | return TRUE; | |
2785 | } | |
2786 | ||
c9ffd2ea TG |
2787 | static bfd_boolean |
2788 | bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) | |
50d10658 | 2789 | { |
c9ffd2ea | 2790 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
50d10658 | 2791 | unsigned int i; |
c9ffd2ea TG |
2792 | bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; |
2793 | bfd_vma vma; | |
2794 | bfd_mach_o_section *s; | |
2795 | ||
2796 | seg->vmsize = 0; | |
50d10658 | 2797 | |
c9ffd2ea TG |
2798 | seg->fileoff = mdata->filelen; |
2799 | seg->maxprot = 0; | |
2800 | seg->initprot = 0; | |
2801 | seg->flags = 0; | |
2802 | ||
2803 | /* Append sections to the segment. We assume they are properly ordered | |
2804 | by vma (but we check that). */ | |
2805 | vma = 0; | |
50d10658 IS |
2806 | for (i = 0; i < mdata->nsects; ++i) |
2807 | { | |
c9ffd2ea | 2808 | s = mdata->sections[i]; |
50d10658 | 2809 | |
c9ffd2ea TG |
2810 | /* Consider only sections for this segment. */ |
2811 | if (strcmp (seg->segname, s->segname) != 0) | |
2812 | continue; | |
50d10658 | 2813 | |
c9ffd2ea | 2814 | bfd_mach_o_append_section_to_segment (seg, s); |
7f307238 | 2815 | |
86eafac0 NC |
2816 | if (s->addr < vma) |
2817 | { | |
4eca0228 | 2818 | _bfd_error_handler |
695344c0 | 2819 | /* xgettext:c-format */ |
2dcf00ce AM |
2820 | (_("section address (%#" PRIx64 ") " |
2821 | "below start of segment (%#" PRIx64 ")"), | |
2822 | (uint64_t) s->addr, (uint64_t) vma); | |
86eafac0 NC |
2823 | return FALSE; |
2824 | } | |
2825 | ||
c9ffd2ea | 2826 | vma = s->addr + s->size; |
7f307238 IS |
2827 | } |
2828 | ||
c9ffd2ea TG |
2829 | /* Set segment file offset: make it page aligned. */ |
2830 | vma = seg->sect_head->addr; | |
2831 | seg->vmaddr = vma & ~pagemask; | |
2832 | if ((mdata->filelen & pagemask) > (vma & pagemask)) | |
2833 | mdata->filelen += pagemask + 1; | |
2834 | seg->fileoff = mdata->filelen & ~pagemask; | |
2835 | mdata->filelen = seg->fileoff + (vma & pagemask); | |
7f307238 | 2836 | |
c9ffd2ea TG |
2837 | /* Set section file offset. */ |
2838 | for (s = seg->sect_head; s != NULL; s = s->next) | |
7f307238 | 2839 | { |
c9ffd2ea TG |
2840 | asection *sec = s->bfdsection; |
2841 | flagword flags = bfd_get_section_flags (abfd, sec); | |
b22161d6 | 2842 | |
c9ffd2ea TG |
2843 | /* Adjust segment size. */ |
2844 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2845 | seg->vmsize += s->size; | |
2846 | ||
2847 | /* File offset and length. */ | |
2848 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
2849 | ||
2850 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL | |
07d6d2b8 | 2851 | && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2852 | != BFD_MACH_O_S_GB_ZEROFILL)) |
b22161d6 | 2853 | { |
c9ffd2ea TG |
2854 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2855 | ||
2856 | s->offset = mdata->filelen; | |
2857 | s->bfdsection->filepos = s->offset; | |
2858 | ||
2859 | seg->filesize += s->size; | |
2860 | mdata->filelen += s->size; | |
b22161d6 | 2861 | } |
c9ffd2ea | 2862 | else |
b22161d6 | 2863 | { |
c9ffd2ea TG |
2864 | s->offset = 0; |
2865 | s->bfdsection->filepos = 0; | |
2866 | } | |
2867 | ||
2868 | /* Set protection. */ | |
2869 | if (flags & SEC_LOAD) | |
2870 | { | |
2871 | if (flags & SEC_CODE) | |
2872 | seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE; | |
2873 | if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA) | |
2874 | seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ; | |
b22161d6 | 2875 | } |
c9ffd2ea TG |
2876 | |
2877 | /* Relocs shouldn't appear in non-object files. */ | |
2878 | if (s->bfdsection->reloc_count != 0) | |
2879 | return FALSE; | |
b22161d6 | 2880 | } |
c9ffd2ea TG |
2881 | |
2882 | /* Set maxprot. */ | |
2883 | if (seg->initprot != 0) | |
2884 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2885 | | BFD_MACH_O_PROT_EXECUTE; | |
b22161d6 | 2886 | else |
c9ffd2ea | 2887 | seg->maxprot = 0; |
b22161d6 | 2888 | |
c9ffd2ea TG |
2889 | /* Round segment size (and file size). */ |
2890 | seg->vmsize = (seg->vmsize + pagemask) & ~pagemask; | |
2891 | seg->filesize = (seg->filesize + pagemask) & ~pagemask; | |
2892 | mdata->filelen = (mdata->filelen + pagemask) & ~pagemask; | |
7f307238 | 2893 | |
c9ffd2ea TG |
2894 | return TRUE; |
2895 | } | |
68ffbac6 | 2896 | |
c9ffd2ea TG |
2897 | /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds |
2898 | fields in header. */ | |
68ffbac6 | 2899 | |
86eafac0 | 2900 | static bfd_boolean |
c9ffd2ea TG |
2901 | bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata) |
2902 | { | |
2903 | unsigned wide = mach_o_wide_p (&mdata->header); | |
2904 | unsigned int hdrlen; | |
2905 | ufile_ptr offset; | |
2906 | bfd_mach_o_load_command *cmd; | |
2907 | unsigned int align; | |
86eafac0 | 2908 | bfd_boolean ret = TRUE; |
c9ffd2ea TG |
2909 | |
2910 | hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; | |
2911 | align = wide ? 8 - 1 : 4 - 1; | |
2912 | offset = hdrlen; | |
2913 | mdata->header.ncmds = 0; | |
50d10658 | 2914 | |
c9ffd2ea TG |
2915 | for (cmd = mdata->first_command; cmd; cmd = cmd->next) |
2916 | { | |
2917 | mdata->header.ncmds++; | |
2918 | cmd->offset = offset; | |
68ffbac6 | 2919 | |
c9ffd2ea TG |
2920 | switch (cmd->type) |
2921 | { | |
2922 | case BFD_MACH_O_LC_SEGMENT_64: | |
2923 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
2924 | + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects; | |
2925 | break; | |
2926 | case BFD_MACH_O_LC_SEGMENT: | |
2927 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
2928 | + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects; | |
2929 | break; | |
2930 | case BFD_MACH_O_LC_SYMTAB: | |
2931 | cmd->len = sizeof (struct mach_o_symtab_command_external) | |
2932 | + BFD_MACH_O_LC_SIZE; | |
2933 | break; | |
2934 | case BFD_MACH_O_LC_DYSYMTAB: | |
2935 | cmd->len = sizeof (struct mach_o_dysymtab_command_external) | |
2936 | + BFD_MACH_O_LC_SIZE; | |
2937 | break; | |
2938 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2939 | cmd->len = sizeof (struct mach_o_dylib_command_external) | |
2940 | + BFD_MACH_O_LC_SIZE; | |
2941 | cmd->command.dylib.name_offset = cmd->len; | |
2942 | cmd->len += strlen (cmd->command.dylib.name_str); | |
2943 | cmd->len = (cmd->len + align) & ~align; | |
2944 | break; | |
2945 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2946 | cmd->len = sizeof (struct mach_o_str_command_external) | |
2947 | + BFD_MACH_O_LC_SIZE; | |
2948 | cmd->command.dylinker.name_offset = cmd->len; | |
2949 | cmd->len += strlen (cmd->command.dylinker.name_str); | |
2950 | cmd->len = (cmd->len + align) & ~align; | |
2951 | break; | |
2952 | case BFD_MACH_O_LC_MAIN: | |
2953 | cmd->len = sizeof (struct mach_o_entry_point_command_external) | |
2954 | + BFD_MACH_O_LC_SIZE; | |
2955 | break; | |
2956 | case BFD_MACH_O_LC_DYLD_INFO: | |
2957 | cmd->len = sizeof (struct mach_o_dyld_info_command_external) | |
2958 | + BFD_MACH_O_LC_SIZE; | |
2959 | break; | |
2960 | default: | |
4eca0228 | 2961 | _bfd_error_handler |
d42c267e AM |
2962 | (_("unable to layout unknown load command %#x"), |
2963 | cmd->type); | |
86eafac0 | 2964 | ret = FALSE; |
c9ffd2ea | 2965 | break; |
7f307238 | 2966 | } |
c9ffd2ea TG |
2967 | |
2968 | BFD_ASSERT (cmd->len % (align + 1) == 0); | |
2969 | offset += cmd->len; | |
7f307238 | 2970 | } |
c9ffd2ea TG |
2971 | mdata->header.sizeofcmds = offset - hdrlen; |
2972 | mdata->filelen = offset; | |
86eafac0 NC |
2973 | |
2974 | return ret; | |
c9ffd2ea | 2975 | } |
7f307238 | 2976 | |
c9ffd2ea TG |
2977 | /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a |
2978 | segment. */ | |
2979 | ||
2980 | static void | |
2981 | bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata, | |
2982 | bfd_mach_o_load_command *cmd, | |
2983 | const char *segname, unsigned int nbr_sect) | |
2984 | { | |
2985 | bfd_mach_o_segment_command *seg = &cmd->command.segment; | |
2986 | unsigned wide = mach_o_wide_p (&mdata->header); | |
2987 | ||
2988 | /* Init segment command. */ | |
2989 | cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT; | |
2990 | cmd->type_required = FALSE; | |
2991 | ||
2992 | strcpy (seg->segname, segname); | |
2993 | seg->nsects = nbr_sect; | |
2994 | ||
2995 | seg->vmaddr = 0; | |
2996 | seg->vmsize = 0; | |
2997 | ||
2998 | seg->fileoff = 0; | |
2999 | seg->filesize = 0; | |
3000 | seg->maxprot = 0; | |
3001 | seg->initprot = 0; | |
3002 | seg->flags = 0; | |
3003 | seg->sect_head = NULL; | |
3004 | seg->sect_tail = NULL; | |
7f307238 IS |
3005 | } |
3006 | ||
3007 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
3008 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
3009 | and copy functionality. */ | |
154a1ee5 TG |
3010 | |
3011 | bfd_boolean | |
3012 | bfd_mach_o_build_commands (bfd *abfd) | |
3013 | { | |
046b007d | 3014 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bbd56171 | 3015 | unsigned wide = mach_o_wide_p (&mdata->header); |
c9ffd2ea TG |
3016 | unsigned int nbr_segcmd = 0; |
3017 | bfd_mach_o_load_command *commands; | |
3018 | unsigned int nbr_commands; | |
bbd56171 IS |
3019 | int symtab_idx = -1; |
3020 | int dysymtab_idx = -1; | |
c9ffd2ea TG |
3021 | int main_idx = -1; |
3022 | unsigned int i; | |
154a1ee5 | 3023 | |
c9ffd2ea TG |
3024 | /* Return now if already built. */ |
3025 | if (mdata->header.ncmds != 0) | |
3026 | return TRUE; | |
154a1ee5 | 3027 | |
7f307238 | 3028 | /* Fill in the file type, if not already set. */ |
7f307238 | 3029 | if (mdata->header.filetype == 0) |
154a1ee5 | 3030 | { |
7f307238 | 3031 | if (abfd->flags & EXEC_P) |
07d6d2b8 | 3032 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; |
7f307238 | 3033 | else if (abfd->flags & DYNAMIC) |
07d6d2b8 | 3034 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; |
7f307238 | 3035 | else |
07d6d2b8 | 3036 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; |
154a1ee5 | 3037 | } |
7f307238 IS |
3038 | |
3039 | /* If hasn't already been done, flatten sections list, and sort | |
3040 | if/when required. Must be done before the symbol table is adjusted, | |
3041 | since that depends on properly numbered sections. */ | |
3042 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
3043 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
3044 | return FALSE; | |
3045 | ||
3046 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
3047 | partition out any indirect symbols. */ | |
b22161d6 | 3048 | if (!bfd_mach_o_mangle_symbols (abfd)) |
7f307238 IS |
3049 | return FALSE; |
3050 | ||
c9ffd2ea TG |
3051 | /* Segment commands. */ |
3052 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) | |
3053 | { | |
3054 | /* Only one segment for all the sections. But the segment is | |
3055 | optional if there is no sections. */ | |
3056 | nbr_segcmd = (mdata->nsects > 0) ? 1 : 0; | |
3057 | } | |
3058 | else | |
3059 | { | |
3060 | bfd_mach_o_section *prev_sect = NULL; | |
bbd56171 | 3061 | |
c9ffd2ea TG |
3062 | /* One pagezero segment and one linkedit segment. */ |
3063 | nbr_segcmd = 2; | |
bbd56171 | 3064 | |
c9ffd2ea TG |
3065 | /* Create one segment for associated segment name in sections. |
3066 | Assume that sections with the same segment name are consecutive. */ | |
3067 | for (i = 0; i < mdata->nsects; i++) | |
3068 | { | |
3069 | bfd_mach_o_section *this_sect = mdata->sections[i]; | |
bbd56171 | 3070 | |
c9ffd2ea TG |
3071 | if (prev_sect == NULL |
3072 | || strcmp (prev_sect->segname, this_sect->segname) != 0) | |
3073 | { | |
3074 | nbr_segcmd++; | |
3075 | prev_sect = this_sect; | |
3076 | } | |
3077 | } | |
154a1ee5 | 3078 | } |
154a1ee5 | 3079 | |
c9ffd2ea TG |
3080 | nbr_commands = nbr_segcmd; |
3081 | ||
3082 | /* One command for the symbol table (only if there are symbols. */ | |
7f307238 | 3083 | if (bfd_get_symcount (abfd) > 0) |
c9ffd2ea | 3084 | symtab_idx = nbr_commands++; |
c2f09c75 | 3085 | |
bbd56171 IS |
3086 | /* FIXME: |
3087 | This is a rather crude test for whether we should build a dysymtab. */ | |
3088 | if (bfd_mach_o_should_emit_dysymtab () | |
3089 | && bfd_get_symcount (abfd)) | |
3090 | { | |
bbd56171 IS |
3091 | /* If there should be a case where a dysymtab could be emitted without |
3092 | a symtab (seems improbable), this would need amending. */ | |
c9ffd2ea | 3093 | dysymtab_idx = nbr_commands++; |
bbd56171 | 3094 | } |
154a1ee5 | 3095 | |
c9ffd2ea TG |
3096 | /* Add an entry point command. */ |
3097 | if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE | |
3098 | && bfd_get_start_address (abfd) != 0) | |
3099 | main_idx = nbr_commands++; | |
c2f09c75 | 3100 | |
bbd56171 | 3101 | /* Well, we must have a header, at least. */ |
c9ffd2ea | 3102 | mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
f1bde64c | 3103 | |
bbd56171 | 3104 | /* A bit unusual, but no content is valid; |
7f307238 | 3105 | as -n empty.s -o empty.o */ |
c9ffd2ea TG |
3106 | if (nbr_commands == 0) |
3107 | { | |
3108 | /* Layout commands (well none...) and set headers command fields. */ | |
86eafac0 | 3109 | return bfd_mach_o_layout_commands (mdata); |
c9ffd2ea | 3110 | } |
f1bde64c | 3111 | |
c9ffd2ea TG |
3112 | /* Create commands for segments (and symtabs), prepend them. */ |
3113 | commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command)); | |
3114 | if (commands == NULL) | |
7f307238 | 3115 | return FALSE; |
c9ffd2ea TG |
3116 | for (i = 0; i < nbr_commands - 1; i++) |
3117 | commands[i].next = &commands[i + 1]; | |
3118 | commands[nbr_commands - 1].next = mdata->first_command; | |
3119 | if (mdata->first_command == NULL) | |
3120 | mdata->last_command = &commands[nbr_commands - 1]; | |
3121 | mdata->first_command = &commands[0]; | |
3122 | ||
3123 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0) | |
3124 | { | |
3125 | /* For object file, there is only one segment. */ | |
3126 | bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects); | |
3127 | } | |
3128 | else if (nbr_segcmd != 0) | |
68ffbac6 | 3129 | { |
c9ffd2ea | 3130 | bfd_mach_o_load_command *cmd; |
7f307238 | 3131 | |
c9ffd2ea | 3132 | BFD_ASSERT (nbr_segcmd >= 2); |
7f307238 | 3133 | |
c9ffd2ea TG |
3134 | /* The pagezero. */ |
3135 | cmd = &commands[0]; | |
3136 | bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0); | |
3137 | ||
3138 | /* Segments from sections. */ | |
3139 | cmd++; | |
3140 | for (i = 0; i < mdata->nsects;) | |
7f307238 | 3141 | { |
c9ffd2ea TG |
3142 | const char *segname = mdata->sections[i]->segname; |
3143 | unsigned int nbr_sect = 1; | |
3144 | ||
3145 | /* Count number of sections for this segment. */ | |
3146 | for (i++; i < mdata->nsects; i++) | |
3147 | if (strcmp (mdata->sections[i]->segname, segname) == 0) | |
3148 | nbr_sect++; | |
3149 | else | |
3150 | break; | |
3151 | ||
3152 | bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect); | |
3153 | cmd++; | |
7f307238 | 3154 | } |
bbd56171 | 3155 | |
c9ffd2ea TG |
3156 | /* The linkedit. */ |
3157 | bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0); | |
7f307238 | 3158 | } |
f1bde64c | 3159 | |
bbd56171 | 3160 | if (symtab_idx >= 0) |
7f307238 IS |
3161 | { |
3162 | /* Init symtab command. */ | |
c9ffd2ea | 3163 | bfd_mach_o_load_command *cmd = &commands[symtab_idx]; |
68ffbac6 | 3164 | |
bbd56171 | 3165 | cmd->type = BFD_MACH_O_LC_SYMTAB; |
bbd56171 | 3166 | cmd->type_required = FALSE; |
7f307238 | 3167 | } |
154a1ee5 | 3168 | |
bbd56171 IS |
3169 | /* If required, setup symtab command, see comment above about the quality |
3170 | of this test. */ | |
3171 | if (dysymtab_idx >= 0) | |
7f307238 | 3172 | { |
c9ffd2ea | 3173 | bfd_mach_o_load_command *cmd = &commands[dysymtab_idx]; |
bbd56171 | 3174 | |
7f307238 | 3175 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; |
7f307238 | 3176 | cmd->type_required = FALSE; |
c9ffd2ea TG |
3177 | } |
3178 | ||
3179 | /* Create the main command. */ | |
3180 | if (main_idx >= 0) | |
3181 | { | |
3182 | bfd_mach_o_load_command *cmd = &commands[main_idx]; | |
7f307238 | 3183 | |
c9ffd2ea TG |
3184 | cmd->type = BFD_MACH_O_LC_MAIN; |
3185 | cmd->type_required = TRUE; | |
3186 | ||
3187 | cmd->command.main.entryoff = 0; | |
3188 | cmd->command.main.stacksize = 0; | |
154a1ee5 | 3189 | } |
154a1ee5 | 3190 | |
c9ffd2ea | 3191 | /* Layout commands. */ |
86eafac0 NC |
3192 | if (! bfd_mach_o_layout_commands (mdata)) |
3193 | return FALSE; | |
c9ffd2ea | 3194 | |
7f307238 IS |
3195 | /* So, now we have sized the commands and the filelen set to that. |
3196 | Now we can build the segment command and set the section file offsets. */ | |
c9ffd2ea TG |
3197 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) |
3198 | { | |
3199 | for (i = 0; i < nbr_segcmd; i++) | |
3200 | if (!bfd_mach_o_build_obj_seg_command | |
3201 | (abfd, &commands[i].command.segment)) | |
3202 | return FALSE; | |
3203 | } | |
3204 | else | |
3205 | { | |
3206 | bfd_vma maxvma = 0; | |
7f307238 | 3207 | |
c9ffd2ea TG |
3208 | /* Skip pagezero and linkedit segments. */ |
3209 | for (i = 1; i < nbr_segcmd - 1; i++) | |
3210 | { | |
3211 | bfd_mach_o_segment_command *seg = &commands[i].command.segment; | |
3212 | ||
3213 | if (!bfd_mach_o_build_exec_seg_command (abfd, seg)) | |
3214 | return FALSE; | |
3215 | ||
3216 | if (seg->vmaddr + seg->vmsize > maxvma) | |
3217 | maxvma = seg->vmaddr + seg->vmsize; | |
3218 | } | |
3219 | ||
3220 | /* Set the size of __PAGEZERO. */ | |
3221 | commands[0].command.segment.vmsize = | |
3222 | commands[1].command.segment.vmaddr; | |
3223 | ||
3224 | /* Set the vma and fileoff of __LINKEDIT. */ | |
3225 | commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma; | |
3226 | commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen; | |
3227 | ||
3228 | /* Set entry point (once segments have been laid out). */ | |
3229 | if (main_idx >= 0) | |
3230 | commands[main_idx].command.main.entryoff = | |
3231 | bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr; | |
3232 | } | |
7f307238 | 3233 | |
154a1ee5 TG |
3234 | return TRUE; |
3235 | } | |
3236 | ||
3237 | /* Set the contents of a section. */ | |
3238 | ||
3239 | bfd_boolean | |
3240 | bfd_mach_o_set_section_contents (bfd *abfd, | |
3241 | asection *section, | |
3242 | const void * location, | |
3243 | file_ptr offset, | |
3244 | bfd_size_type count) | |
3245 | { | |
3246 | file_ptr pos; | |
3247 | ||
7f307238 IS |
3248 | /* Trying to write the first section contents will trigger the creation of |
3249 | the load commands if they are not already present. */ | |
c9ffd2ea | 3250 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
154a1ee5 TG |
3251 | return FALSE; |
3252 | ||
3253 | if (count == 0) | |
3254 | return TRUE; | |
3255 | ||
3256 | pos = section->filepos + offset; | |
3257 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
3258 | || bfd_bwrite (location, count, abfd) != count) | |
3259 | return FALSE; | |
3260 | ||
3261 | return TRUE; | |
3262 | } | |
3263 | ||
3264 | int | |
116c20d2 | 3265 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 3266 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
3267 | { |
3268 | return 0; | |
3269 | } | |
3270 | ||
3271 | /* Make an empty symbol. This is required only because | |
3272 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
3273 | ||
154a1ee5 | 3274 | asymbol * |
116c20d2 | 3275 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 3276 | { |
d3ce72d0 NC |
3277 | asymbol *new_symbol; |
3278 | ||
3279 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
3280 | if (new_symbol == NULL) | |
3281 | return new_symbol; | |
3282 | new_symbol->the_bfd = abfd; | |
b22161d6 | 3283 | new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET; |
d3ce72d0 | 3284 | return new_symbol; |
3af9a47b NC |
3285 | } |
3286 | ||
154a1ee5 | 3287 | static bfd_boolean |
47daa70f | 3288 | bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header) |
3af9a47b | 3289 | { |
46d1c23b | 3290 | struct mach_o_header_external raw; |
1e8a024a | 3291 | unsigned int size; |
edeb6e24 | 3292 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 3293 | |
1e8a024a | 3294 | /* Just read the magic number. */ |
47daa70f | 3295 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3296 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 3297 | return FALSE; |
3af9a47b | 3298 | |
46d1c23b | 3299 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
3300 | { |
3301 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3302 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 3303 | header->version = 1; |
3af9a47b NC |
3304 | get32 = bfd_getb32; |
3305 | } | |
46d1c23b | 3306 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 3307 | { |
a95a4550 | 3308 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 3309 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
3310 | header->version = 1; |
3311 | get32 = bfd_getl32; | |
3312 | } | |
46d1c23b | 3313 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3314 | { |
3315 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3316 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
3317 | header->version = 2; |
3318 | get32 = bfd_getb32; | |
3319 | } | |
46d1c23b | 3320 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3321 | { |
3322 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 3323 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 3324 | header->version = 2; |
3af9a47b NC |
3325 | get32 = bfd_getl32; |
3326 | } | |
3327 | else | |
3328 | { | |
3329 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 3330 | return FALSE; |
3af9a47b | 3331 | } |
a95a4550 | 3332 | |
1e8a024a | 3333 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 3334 | size = mach_o_wide_p (header) ? |
154a1ee5 | 3335 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 3336 | |
47daa70f | 3337 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3338 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 3339 | return FALSE; |
1e8a024a | 3340 | |
46d1c23b TG |
3341 | header->cputype = (*get32) (raw.cputype); |
3342 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
3343 | header->filetype = (*get32) (raw.filetype); | |
3344 | header->ncmds = (*get32) (raw.ncmds); | |
3345 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
3346 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 3347 | |
c2f09c75 | 3348 | if (mach_o_wide_p (header)) |
46d1c23b | 3349 | header->reserved = (*get32) (raw.reserved); |
facf03f2 TG |
3350 | else |
3351 | header->reserved = 0; | |
1e8a024a | 3352 | |
154a1ee5 | 3353 | return TRUE; |
3af9a47b NC |
3354 | } |
3355 | ||
f1bde64c TG |
3356 | bfd_boolean |
3357 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
3358 | { | |
3359 | bfd_mach_o_section *s; | |
a4551119 | 3360 | unsigned bfdalign = bfd_get_section_alignment (abfd, sec); |
f1bde64c TG |
3361 | |
3362 | s = bfd_mach_o_get_mach_o_section (sec); | |
3363 | if (s == NULL) | |
3364 | { | |
3365 | flagword bfd_flags; | |
a4551119 | 3366 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
3367 | |
3368 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
3369 | if (s == NULL) | |
3370 | return FALSE; | |
3371 | sec->used_by_bfd = s; | |
3372 | s->bfdsection = sec; | |
3373 | ||
a4551119 TG |
3374 | /* Create the Darwin seg/sect name pair from the bfd name. |
3375 | If this is a canonical name for which a specific paiting exists | |
3376 | there will also be defined flags, type, attribute and alignment | |
3377 | values. */ | |
3378 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
3379 | if (xlat != NULL) | |
3380 | { | |
3381 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
68ffbac6 | 3382 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign |
a4551119 | 3383 | : bfdalign; |
a253d456 | 3384 | (void) bfd_set_section_alignment (abfd, sec, s->align); |
a4551119 TG |
3385 | bfd_flags = bfd_get_section_flags (abfd, sec); |
3386 | if (bfd_flags == SEC_NO_FLAGS) | |
3387 | bfd_set_section_flags (abfd, sec, xlat->bfd_flags); | |
3388 | } | |
f1bde64c | 3389 | else |
a4551119 TG |
3390 | /* Create default flags. */ |
3391 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
3392 | } |
3393 | ||
3394 | return _bfd_generic_new_section_hook (abfd, sec); | |
3395 | } | |
3396 | ||
3397 | static void | |
3398 | bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec, | |
07d6d2b8 | 3399 | unsigned long prot) |
3af9a47b | 3400 | { |
117ed4f8 | 3401 | flagword flags; |
f1bde64c | 3402 | bfd_mach_o_section *section; |
3af9a47b | 3403 | |
f1bde64c TG |
3404 | flags = bfd_get_section_flags (abfd, sec); |
3405 | section = bfd_mach_o_get_mach_o_section (sec); | |
3af9a47b | 3406 | |
a4551119 TG |
3407 | /* TODO: see if we should use the xlat system for doing this by |
3408 | preference and fall back to this for unknown sections. */ | |
3409 | ||
8462aec7 | 3410 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 3411 | { |
8462aec7 TG |
3412 | /* Try to guess flags. */ |
3413 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
07d6d2b8 | 3414 | flags = SEC_DEBUGGING; |
8462aec7 | 3415 | else |
07d6d2b8 AM |
3416 | { |
3417 | flags = SEC_ALLOC; | |
3418 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
3419 | != BFD_MACH_O_S_ZEROFILL) | |
3420 | { | |
3421 | flags |= SEC_LOAD; | |
3422 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
3423 | flags |= SEC_CODE; | |
3424 | if (prot & BFD_MACH_O_PROT_WRITE) | |
3425 | flags |= SEC_DATA; | |
3426 | else if (prot & BFD_MACH_O_PROT_READ) | |
3427 | flags |= SEC_READONLY; | |
3428 | } | |
3429 | } | |
ef17cb22 | 3430 | } |
15e1c58a TG |
3431 | else |
3432 | { | |
8462aec7 | 3433 | if ((flags & SEC_DEBUGGING) == 0) |
07d6d2b8 | 3434 | flags |= SEC_ALLOC; |
15e1c58a | 3435 | } |
8462aec7 TG |
3436 | |
3437 | if (section->offset != 0) | |
3438 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
3439 | if (section->nreloc != 0) |
3440 | flags |= SEC_RELOC; | |
3441 | ||
f1bde64c TG |
3442 | bfd_set_section_flags (abfd, sec, flags); |
3443 | ||
3444 | sec->vma = section->addr; | |
3445 | sec->lma = section->addr; | |
3446 | sec->size = section->size; | |
3447 | sec->filepos = section->offset; | |
3448 | sec->alignment_power = section->align; | |
3449 | sec->segment_mark = 0; | |
3450 | sec->reloc_count = section->nreloc; | |
3451 | sec->rel_filepos = section->reloff; | |
3452 | } | |
3453 | ||
3454 | static asection * | |
3455 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
07d6d2b8 AM |
3456 | const unsigned char *segname, |
3457 | const unsigned char *sectname) | |
f1bde64c TG |
3458 | { |
3459 | const char *sname; | |
3460 | flagword flags; | |
a95a4550 | 3461 | |
f1bde64c TG |
3462 | bfd_mach_o_convert_section_name_to_bfd |
3463 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
3464 | if (sname == NULL) | |
3465 | return NULL; | |
3af9a47b | 3466 | |
f1bde64c | 3467 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
3468 | } |
3469 | ||
f1bde64c | 3470 | static asection * |
47daa70f | 3471 | bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot) |
3af9a47b | 3472 | { |
46d1c23b | 3473 | struct mach_o_section_32_external raw; |
f1bde64c TG |
3474 | asection *sec; |
3475 | bfd_mach_o_section *section; | |
3af9a47b | 3476 | |
47daa70f TG |
3477 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
3478 | != BFD_MACH_O_SECTION_SIZE) | |
f1bde64c | 3479 | return NULL; |
a95a4550 | 3480 | |
5a5cbf72 | 3481 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3482 | if (sec == NULL) |
3483 | return NULL; | |
3484 | ||
3485 | section = bfd_mach_o_get_mach_o_section (sec); | |
3486 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3487 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3488 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3489 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3490 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
3491 | section->size = bfd_h_get_32 (abfd, raw.size); | |
3492 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3493 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3494 | /* PR 17512: file: 0017eb76. */ |
3495 | if (section->align > 64) | |
3496 | { | |
4eca0228 | 3497 | _bfd_error_handler |
d42c267e | 3498 | (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, " |
4eca0228 | 3499 | "using 32 instead"), section->align); |
c86934ce NC |
3500 | section->align = 32; |
3501 | } | |
46d1c23b TG |
3502 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3503 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3504 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3505 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3506 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 3507 | section->reserved3 = 0; |
1e8a024a | 3508 | |
f1bde64c | 3509 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
1e8a024a | 3510 | |
f1bde64c | 3511 | return sec; |
1e8a024a TG |
3512 | } |
3513 | ||
f1bde64c | 3514 | static asection * |
47daa70f | 3515 | bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot) |
1e8a024a | 3516 | { |
46d1c23b | 3517 | struct mach_o_section_64_external raw; |
f1bde64c TG |
3518 | asection *sec; |
3519 | bfd_mach_o_section *section; | |
1e8a024a | 3520 | |
47daa70f TG |
3521 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
3522 | != BFD_MACH_O_SECTION_64_SIZE) | |
f1bde64c TG |
3523 | return NULL; |
3524 | ||
5a5cbf72 | 3525 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3526 | if (sec == NULL) |
3527 | return NULL; | |
1e8a024a | 3528 | |
f1bde64c TG |
3529 | section = bfd_mach_o_get_mach_o_section (sec); |
3530 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3531 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3532 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3533 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3534 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
3535 | section->size = bfd_h_get_64 (abfd, raw.size); | |
3536 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3537 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3538 | if (section->align > 64) |
3539 | { | |
4eca0228 | 3540 | _bfd_error_handler |
d42c267e | 3541 | (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, " |
4eca0228 | 3542 | "using 32 instead"), section->align); |
c86934ce NC |
3543 | section->align = 32; |
3544 | } | |
46d1c23b TG |
3545 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3546 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3547 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3548 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3549 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
3550 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 3551 | |
f1bde64c | 3552 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
3af9a47b | 3553 | |
f1bde64c | 3554 | return sec; |
3af9a47b NC |
3555 | } |
3556 | ||
f1bde64c | 3557 | static asection * |
47daa70f | 3558 | bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide) |
1e8a024a TG |
3559 | { |
3560 | if (wide) | |
47daa70f | 3561 | return bfd_mach_o_read_section_64 (abfd, prot); |
1e8a024a | 3562 | else |
47daa70f | 3563 | return bfd_mach_o_read_section_32 (abfd, prot); |
1e8a024a TG |
3564 | } |
3565 | ||
afbb9e17 | 3566 | static bfd_boolean |
ab273af8 | 3567 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
07d6d2b8 AM |
3568 | bfd_mach_o_symtab_command *sym, |
3569 | bfd_mach_o_asymbol *s, | |
3570 | unsigned long i) | |
3af9a47b | 3571 | { |
046b007d | 3572 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 3573 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
3574 | unsigned int symwidth = |
3575 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 3576 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 3577 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
3578 | unsigned char type = -1; |
3579 | unsigned char section = -1; | |
3580 | short desc = -1; | |
1e8a024a | 3581 | symvalue value = -1; |
3af9a47b NC |
3582 | unsigned long stroff = -1; |
3583 | unsigned int symtype = -1; | |
3584 | ||
3585 | BFD_ASSERT (sym->strtab != NULL); | |
3586 | ||
c2f09c75 | 3587 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 3588 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 3589 | { |
4eca0228 | 3590 | _bfd_error_handler |
695344c0 | 3591 | /* xgettext:c-format */ |
07d6d2b8 AM |
3592 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"), |
3593 | symwidth, symoff); | |
afbb9e17 | 3594 | return FALSE; |
3af9a47b NC |
3595 | } |
3596 | ||
46d1c23b TG |
3597 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
3598 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 3599 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
3600 | section = bfd_h_get_8 (abfd, raw.n_sect); |
3601 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 3602 | if (wide) |
46d1c23b | 3603 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 3604 | else |
46d1c23b | 3605 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
3606 | |
3607 | if (stroff >= sym->strsize) | |
3608 | { | |
4eca0228 | 3609 | _bfd_error_handler |
695344c0 | 3610 | /* xgettext:c-format */ |
07d6d2b8 AM |
3611 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"), |
3612 | stroff, | |
3613 | sym->strsize); | |
afbb9e17 | 3614 | return FALSE; |
3af9a47b NC |
3615 | } |
3616 | ||
92bc0e80 TG |
3617 | s->symbol.the_bfd = abfd; |
3618 | s->symbol.name = sym->strtab + stroff; | |
3619 | s->symbol.value = value; | |
3620 | s->symbol.flags = 0x0; | |
b22161d6 | 3621 | s->symbol.udata.i = i; |
92bc0e80 TG |
3622 | s->n_type = type; |
3623 | s->n_sect = section; | |
3624 | s->n_desc = desc; | |
3af9a47b NC |
3625 | |
3626 | if (type & BFD_MACH_O_N_STAB) | |
3627 | { | |
92bc0e80 TG |
3628 | s->symbol.flags |= BSF_DEBUGGING; |
3629 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
3630 | switch (type) |
3631 | { | |
3632 | case N_FUN: | |
3633 | case N_STSYM: | |
3634 | case N_LCSYM: | |
3635 | case N_BNSYM: | |
3636 | case N_SLINE: | |
3637 | case N_ENSYM: | |
3638 | case N_ECOMM: | |
3639 | case N_ECOML: | |
3640 | case N_GSYM: | |
3641 | if ((section > 0) && (section <= mdata->nsects)) | |
3642 | { | |
92bc0e80 TG |
3643 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3644 | s->symbol.value = | |
07d6d2b8 | 3645 | s->symbol.value - mdata->sections[section - 1]->addr; |
15e1c58a TG |
3646 | } |
3647 | break; | |
3648 | } | |
3af9a47b NC |
3649 | } |
3650 | else | |
3651 | { | |
b22161d6 | 3652 | if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)) |
92bc0e80 | 3653 | s->symbol.flags |= BSF_GLOBAL; |
b22161d6 | 3654 | else |
92bc0e80 | 3655 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
3656 | |
3657 | switch (symtype) | |
3658 | { | |
3659 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
3660 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
3661 | && s->symbol.value != 0) | |
3662 | { | |
3663 | /* A common symbol. */ | |
3664 | s->symbol.section = bfd_com_section_ptr; | |
3665 | s->symbol.flags = BSF_NO_FLAGS; | |
3666 | } | |
3667 | else | |
3668 | { | |
3669 | s->symbol.section = bfd_und_section_ptr; | |
3670 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
3671 | s->symbol.flags |= BSF_WEAK; | |
3672 | } | |
3af9a47b NC |
3673 | break; |
3674 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 3675 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3676 | break; |
3677 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 3678 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
3679 | break; |
3680 | case BFD_MACH_O_N_SECT: | |
3681 | if ((section > 0) && (section <= mdata->nsects)) | |
3682 | { | |
92bc0e80 TG |
3683 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3684 | s->symbol.value = | |
07d6d2b8 | 3685 | s->symbol.value - mdata->sections[section - 1]->addr; |
3af9a47b NC |
3686 | } |
3687 | else | |
3688 | { | |
3689 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
3690 | if (section != 0) | |
3691 | { | |
4eca0228 | 3692 | _bfd_error_handler |
695344c0 | 3693 | /* xgettext:c-format */ |
4eca0228 AM |
3694 | (_("bfd_mach_o_read_symtab_symbol: " |
3695 | "symbol \"%s\" specified invalid section %d (max %lu): " | |
3696 | "setting to undefined"), | |
3697 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 3698 | } |
92bc0e80 | 3699 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3700 | } |
3701 | break; | |
3702 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
3703 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
3704 | won't be followed by the referenced one. This looks harmless | |
3705 | unless we start using the linker. */ | |
3706 | s->symbol.flags |= BSF_INDIRECT; | |
3707 | s->symbol.section = bfd_ind_section_ptr; | |
3708 | s->symbol.value = 0; | |
3af9a47b NC |
3709 | break; |
3710 | default: | |
4eca0228 | 3711 | _bfd_error_handler |
695344c0 | 3712 | /* xgettext:c-format */ |
4eca0228 AM |
3713 | (_("bfd_mach_o_read_symtab_symbol: " |
3714 | "symbol \"%s\" specified invalid type field 0x%x: " | |
3715 | "setting to undefined"), s->symbol.name, symtype); | |
92bc0e80 | 3716 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3717 | break; |
3718 | } | |
3719 | } | |
3720 | ||
afbb9e17 | 3721 | return TRUE; |
3af9a47b NC |
3722 | } |
3723 | ||
c5012cd8 | 3724 | bfd_boolean |
ab273af8 | 3725 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 3726 | { |
046b007d TG |
3727 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3728 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3729 | ||
3730 | /* Fail if there is no symtab. */ | |
3731 | if (sym == NULL) | |
afbb9e17 | 3732 | return FALSE; |
046b007d TG |
3733 | |
3734 | /* Success if already loaded. */ | |
3735 | if (sym->strtab) | |
afbb9e17 | 3736 | return TRUE; |
3af9a47b NC |
3737 | |
3738 | if (abfd->flags & BFD_IN_MEMORY) | |
3739 | { | |
3740 | struct bfd_in_memory *b; | |
3741 | ||
3742 | b = (struct bfd_in_memory *) abfd->iostream; | |
3743 | ||
3744 | if ((sym->stroff + sym->strsize) > b->size) | |
3745 | { | |
3746 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 3747 | return FALSE; |
3af9a47b | 3748 | } |
f075ee0c | 3749 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 3750 | } |
046b007d | 3751 | else |
3af9a47b | 3752 | { |
8bdf0be1 NC |
3753 | /* See PR 21840 for a reproducer. */ |
3754 | if ((sym->strsize + 1) == 0) | |
3755 | return FALSE; | |
e7287c7f | 3756 | sym->strtab = bfd_alloc (abfd, sym->strsize + 1); |
046b007d | 3757 | if (sym->strtab == NULL) |
07d6d2b8 | 3758 | return FALSE; |
046b007d TG |
3759 | |
3760 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 | |
07d6d2b8 AM |
3761 | || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize) |
3762 | { | |
a1165289 NC |
3763 | /* PR 17512: file: 10888-1609-0.004. */ |
3764 | bfd_release (abfd, sym->strtab); | |
3765 | sym->strtab = NULL; | |
07d6d2b8 AM |
3766 | bfd_set_error (bfd_error_file_truncated); |
3767 | return FALSE; | |
3768 | } | |
e7287c7f NC |
3769 | /* Zero terminate the string table. */ |
3770 | sym->strtab[sym->strsize] = 0; | |
3af9a47b NC |
3771 | } |
3772 | ||
afbb9e17 | 3773 | return TRUE; |
3af9a47b NC |
3774 | } |
3775 | ||
c5012cd8 | 3776 | bfd_boolean |
ab273af8 | 3777 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 3778 | { |
046b007d TG |
3779 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3780 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 3781 | unsigned long i; |
3af9a47b | 3782 | |
092d27ff | 3783 | if (sym == NULL || sym->symbols) |
0a9d414a NC |
3784 | /* Return now if there are no symbols or if already loaded. */ |
3785 | return TRUE; | |
046b007d | 3786 | |
64d29018 | 3787 | sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol)); |
3af9a47b NC |
3788 | if (sym->symbols == NULL) |
3789 | { | |
4eca0228 AM |
3790 | _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: " |
3791 | "unable to allocate memory for symbols")); | |
64d29018 | 3792 | sym->nsyms = 0; |
afbb9e17 | 3793 | return FALSE; |
3af9a47b | 3794 | } |
a95a4550 | 3795 | |
afbb9e17 | 3796 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
64d29018 | 3797 | goto fail; |
3af9a47b NC |
3798 | |
3799 | for (i = 0; i < sym->nsyms; i++) | |
64d29018 NC |
3800 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
3801 | goto fail; | |
a95a4550 | 3802 | |
afbb9e17 | 3803 | return TRUE; |
64d29018 NC |
3804 | |
3805 | fail: | |
3806 | bfd_release (abfd, sym->symbols); | |
3807 | sym->symbols = NULL; | |
3808 | sym->nsyms = 0; | |
3809 | return FALSE; | |
3af9a47b NC |
3810 | } |
3811 | ||
3812 | static const char * | |
116c20d2 | 3813 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
3814 | { |
3815 | switch ((int) flavour) | |
3816 | { | |
15e1c58a TG |
3817 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
3818 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
3819 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
3820 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
3821 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
3822 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
3823 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
3824 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
3825 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
3826 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
3827 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
3828 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 3829 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
3830 | default: return "UNKNOWN"; |
3831 | } | |
3832 | } | |
3833 | ||
3834 | static const char * | |
116c20d2 | 3835 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
3836 | { |
3837 | switch ((int) flavour) | |
3838 | { | |
b32e07d7 TG |
3839 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
3840 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
3841 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
3842 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
3843 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
3844 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
3845 | default: return "UNKNOWN"; |
3846 | } | |
3847 | } | |
3848 | ||
452216ab | 3849 | static bfd_boolean |
ab273af8 | 3850 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
3851 | { |
3852 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 3853 | struct mach_o_str_command_external raw; |
3af9a47b | 3854 | unsigned int nameoff; |
4525c51a | 3855 | unsigned int namelen; |
3af9a47b | 3856 | |
47daa70f | 3857 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3858 | return FALSE; |
3af9a47b | 3859 | |
46d1c23b | 3860 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3af9a47b | 3861 | |
4525c51a TG |
3862 | cmd->name_offset = nameoff; |
3863 | namelen = command->len - nameoff; | |
3864 | nameoff += command->offset; | |
3865 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 3866 | if (cmd->name_str == NULL) |
452216ab | 3867 | return FALSE; |
4525c51a TG |
3868 | if (bfd_seek (abfd, nameoff, SEEK_SET) != 0 |
3869 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) | |
452216ab TG |
3870 | return FALSE; |
3871 | return TRUE; | |
3af9a47b NC |
3872 | } |
3873 | ||
452216ab | 3874 | static bfd_boolean |
ab273af8 | 3875 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3876 | { |
47daa70f | 3877 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 3878 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
46d1c23b | 3879 | struct mach_o_dylib_command_external raw; |
3af9a47b | 3880 | unsigned int nameoff; |
4525c51a | 3881 | unsigned int namelen; |
3af9a47b | 3882 | |
046b007d TG |
3883 | switch (command->type) |
3884 | { | |
3885 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 3886 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
046b007d | 3887 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 3888 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 3889 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 3890 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
3891 | break; |
3892 | default: | |
b32e07d7 | 3893 | BFD_FAIL (); |
452216ab | 3894 | return FALSE; |
046b007d | 3895 | } |
3af9a47b | 3896 | |
47daa70f | 3897 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3898 | return FALSE; |
3af9a47b | 3899 | |
46d1c23b TG |
3900 | nameoff = bfd_h_get_32 (abfd, raw.name); |
3901 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); | |
3902 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
3903 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
3904 | |
3905 | cmd->name_offset = command->offset + nameoff; | |
4525c51a TG |
3906 | namelen = command->len - nameoff; |
3907 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 3908 | if (cmd->name_str == NULL) |
452216ab | 3909 | return FALSE; |
47daa70f | 3910 | if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0 |
4525c51a | 3911 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) |
452216ab TG |
3912 | return FALSE; |
3913 | return TRUE; | |
3af9a47b NC |
3914 | } |
3915 | ||
452216ab | 3916 | static bfd_boolean |
7a79c514 | 3917 | bfd_mach_o_read_prebound_dylib (bfd *abfd, |
07d6d2b8 | 3918 | bfd_mach_o_load_command *command) |
3af9a47b | 3919 | { |
7a79c514 TG |
3920 | bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; |
3921 | struct mach_o_prebound_dylib_command_external raw; | |
3922 | unsigned int nameoff; | |
3923 | unsigned int modoff; | |
3924 | unsigned int str_len; | |
3925 | unsigned char *str; | |
3926 | ||
47daa70f | 3927 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3928 | return FALSE; |
7a79c514 TG |
3929 | |
3930 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3931 | modoff = bfd_h_get_32 (abfd, raw.linked_modules); | |
3932 | if (nameoff > command->len || modoff > command->len) | |
452216ab | 3933 | return FALSE; |
7a79c514 TG |
3934 | |
3935 | str_len = command->len - sizeof (raw); | |
3936 | str = bfd_alloc (abfd, str_len); | |
3937 | if (str == NULL) | |
452216ab | 3938 | return FALSE; |
7a79c514 | 3939 | if (bfd_bread (str, str_len, abfd) != str_len) |
452216ab | 3940 | return FALSE; |
7a79c514 TG |
3941 | |
3942 | cmd->name_offset = command->offset + nameoff; | |
3943 | cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules); | |
3944 | cmd->linked_modules_offset = command->offset + modoff; | |
3945 | ||
3946 | cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
3947 | cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
452216ab | 3948 | return TRUE; |
7a79c514 TG |
3949 | } |
3950 | ||
452216ab | 3951 | static bfd_boolean |
7a79c514 TG |
3952 | bfd_mach_o_read_prebind_cksum (bfd *abfd, |
3953 | bfd_mach_o_load_command *command) | |
3954 | { | |
3955 | bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum; | |
3956 | struct mach_o_prebind_cksum_command_external raw; | |
3af9a47b | 3957 | |
47daa70f | 3958 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3959 | return FALSE; |
7a79c514 TG |
3960 | |
3961 | cmd->cksum = bfd_get_32 (abfd, raw.cksum); | |
452216ab | 3962 | return TRUE; |
7a79c514 TG |
3963 | } |
3964 | ||
452216ab | 3965 | static bfd_boolean |
7a79c514 TG |
3966 | bfd_mach_o_read_twolevel_hints (bfd *abfd, |
3967 | bfd_mach_o_load_command *command) | |
3968 | { | |
3969 | bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints; | |
3970 | struct mach_o_twolevel_hints_command_external raw; | |
3971 | ||
47daa70f | 3972 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3973 | return FALSE; |
7a79c514 TG |
3974 | |
3975 | cmd->offset = bfd_get_32 (abfd, raw.offset); | |
3976 | cmd->nhints = bfd_get_32 (abfd, raw.nhints); | |
452216ab | 3977 | return TRUE; |
3af9a47b NC |
3978 | } |
3979 | ||
452216ab | 3980 | static bfd_boolean |
9f4a5bd1 TG |
3981 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) |
3982 | { | |
3983 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
3984 | struct mach_o_fvmlib_command_external raw; | |
3985 | unsigned int nameoff; | |
4525c51a | 3986 | unsigned int namelen; |
9f4a5bd1 | 3987 | |
47daa70f | 3988 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3989 | return FALSE; |
9f4a5bd1 TG |
3990 | |
3991 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3992 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); | |
3993 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
3994 | ||
3995 | fvm->name_offset = command->offset + nameoff; | |
4525c51a TG |
3996 | namelen = command->len - nameoff; |
3997 | fvm->name_str = bfd_alloc (abfd, namelen); | |
9f4a5bd1 | 3998 | if (fvm->name_str == NULL) |
452216ab | 3999 | return FALSE; |
9f4a5bd1 | 4000 | if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0 |
4525c51a | 4001 | || bfd_bread (fvm->name_str, namelen, abfd) != namelen) |
452216ab TG |
4002 | return FALSE; |
4003 | return TRUE; | |
9f4a5bd1 TG |
4004 | } |
4005 | ||
452216ab | 4006 | static bfd_boolean |
ab273af8 | 4007 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4008 | { |
b32e07d7 | 4009 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4010 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 4011 | unsigned int offset; |
3af9a47b NC |
4012 | unsigned int nflavours; |
4013 | unsigned int i; | |
4014 | ||
4015 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
4016 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
4017 | ||
b32e07d7 | 4018 | /* Count the number of threads. */ |
3af9a47b NC |
4019 | offset = 8; |
4020 | nflavours = 0; | |
4021 | while (offset != command->len) | |
4022 | { | |
46d1c23b TG |
4023 | struct mach_o_thread_command_external raw; |
4024 | ||
3af9a47b | 4025 | if (offset >= command->len) |
452216ab | 4026 | return FALSE; |
3af9a47b | 4027 | |
c2f09c75 | 4028 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4029 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4030 | return FALSE; |
3af9a47b | 4031 | |
46d1c23b | 4032 | offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4; |
3af9a47b NC |
4033 | nflavours++; |
4034 | } | |
4035 | ||
b32e07d7 | 4036 | /* Allocate threads. */ |
64d29018 NC |
4037 | cmd->flavours = bfd_alloc2 |
4038 | (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour)); | |
3af9a47b | 4039 | if (cmd->flavours == NULL) |
452216ab | 4040 | return FALSE; |
3af9a47b NC |
4041 | cmd->nflavours = nflavours; |
4042 | ||
4043 | offset = 8; | |
4044 | nflavours = 0; | |
4045 | while (offset != command->len) | |
4046 | { | |
46d1c23b TG |
4047 | struct mach_o_thread_command_external raw; |
4048 | ||
3af9a47b | 4049 | if (offset >= command->len) |
452216ab | 4050 | return FALSE; |
3af9a47b NC |
4051 | |
4052 | if (nflavours >= cmd->nflavours) | |
452216ab | 4053 | return FALSE; |
3af9a47b | 4054 | |
c2f09c75 | 4055 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4056 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4057 | return FALSE; |
3af9a47b | 4058 | |
46d1c23b TG |
4059 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
4060 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
4061 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
4062 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
4063 | nflavours++; |
4064 | } | |
4065 | ||
4066 | for (i = 0; i < nflavours; i++) | |
4067 | { | |
4068 | asection *bfdsec; | |
4069 | unsigned int snamelen; | |
4070 | char *sname; | |
4071 | const char *flavourstr; | |
4072 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
4073 | unsigned int j = 0; |
4074 | ||
3af9a47b NC |
4075 | switch (mdata->header.cputype) |
4076 | { | |
4077 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 4078 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
707e555b TG |
4079 | flavourstr = |
4080 | bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4081 | break; |
4082 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 4083 | case BFD_MACH_O_CPU_TYPE_X86_64: |
707e555b TG |
4084 | flavourstr = |
4085 | bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4086 | break; |
4087 | default: | |
4088 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
4089 | break; | |
4090 | } | |
a95a4550 | 4091 | |
3af9a47b | 4092 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 4093 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b | 4094 | if (sname == NULL) |
452216ab | 4095 | return FALSE; |
3af9a47b NC |
4096 | |
4097 | for (;;) | |
4098 | { | |
a95a4550 AM |
4099 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
4100 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 4101 | break; |
a95a4550 | 4102 | j++; |
3af9a47b NC |
4103 | } |
4104 | ||
117ed4f8 | 4105 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 4106 | |
3af9a47b NC |
4107 | bfdsec->vma = 0; |
4108 | bfdsec->lma = 0; | |
eea6121a | 4109 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
4110 | bfdsec->filepos = cmd->flavours[i].offset; |
4111 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
4112 | |
4113 | cmd->section = bfdsec; | |
4114 | } | |
4115 | ||
452216ab | 4116 | return TRUE; |
3af9a47b NC |
4117 | } |
4118 | ||
452216ab | 4119 | static bfd_boolean |
ab273af8 | 4120 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4121 | { |
046b007d | 4122 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 4123 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4124 | |
4125 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
4126 | ||
46d1c23b TG |
4127 | { |
4128 | struct mach_o_dysymtab_command_external raw; | |
4129 | ||
47daa70f | 4130 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4131 | return FALSE; |
3af9a47b | 4132 | |
46d1c23b TG |
4133 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
4134 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
4135 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
4136 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
4137 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
4138 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
4139 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
4140 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
4141 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
4142 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
4143 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
4144 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
4145 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
4146 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
4147 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
4148 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
4149 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
4150 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
4151 | } | |
046b007d TG |
4152 | |
4153 | if (cmd->nmodtab != 0) | |
4154 | { | |
046b007d TG |
4155 | unsigned int i; |
4156 | int wide = bfd_mach_o_wide_p (abfd); | |
4157 | unsigned int module_len = wide ? 56 : 52; | |
4158 | ||
4159 | cmd->dylib_module = | |
07d6d2b8 | 4160 | bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module)); |
046b007d | 4161 | if (cmd->dylib_module == NULL) |
07d6d2b8 | 4162 | return FALSE; |
046b007d TG |
4163 | |
4164 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
07d6d2b8 | 4165 | return FALSE; |
046b007d TG |
4166 | |
4167 | for (i = 0; i < cmd->nmodtab; i++) | |
07d6d2b8 AM |
4168 | { |
4169 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
4170 | unsigned long v; | |
4171 | unsigned char buf[56]; | |
4172 | ||
4173 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) | |
4174 | return FALSE; | |
4175 | ||
4176 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
4177 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
4178 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
4179 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
4180 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
4181 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
4182 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
4183 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
4184 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
4185 | v = bfd_h_get_32 (abfd, buf +36); | |
4186 | module->iinit = v & 0xffff; | |
4187 | module->iterm = (v >> 16) & 0xffff; | |
4188 | v = bfd_h_get_32 (abfd, buf + 40); | |
4189 | module->ninit = v & 0xffff; | |
4190 | module->nterm = (v >> 16) & 0xffff; | |
4191 | if (wide) | |
4192 | { | |
4193 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
4194 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
4195 | } | |
4196 | else | |
4197 | { | |
4198 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
4199 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
4200 | } | |
4201 | } | |
046b007d | 4202 | } |
afbb9e17 | 4203 | |
046b007d TG |
4204 | if (cmd->ntoc != 0) |
4205 | { | |
64d29018 | 4206 | unsigned long i; |
046b007d | 4207 | |
64d29018 | 4208 | cmd->dylib_toc = bfd_alloc2 |
07d6d2b8 | 4209 | (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content)); |
046b007d | 4210 | if (cmd->dylib_toc == NULL) |
07d6d2b8 | 4211 | return FALSE; |
046b007d TG |
4212 | |
4213 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
07d6d2b8 | 4214 | return FALSE; |
046b007d TG |
4215 | |
4216 | for (i = 0; i < cmd->ntoc; i++) | |
07d6d2b8 AM |
4217 | { |
4218 | struct mach_o_dylib_table_of_contents_external raw; | |
4219 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
046b007d | 4220 | |
07d6d2b8 AM |
4221 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4222 | return FALSE; | |
046b007d | 4223 | |
07d6d2b8 AM |
4224 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
4225 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
4226 | } | |
046b007d TG |
4227 | } |
4228 | ||
4229 | if (cmd->nindirectsyms != 0) | |
4230 | { | |
046b007d TG |
4231 | unsigned int i; |
4232 | ||
64d29018 | 4233 | cmd->indirect_syms = bfd_alloc2 |
07d6d2b8 | 4234 | (abfd, cmd->nindirectsyms, sizeof (unsigned int)); |
046b007d | 4235 | if (cmd->indirect_syms == NULL) |
07d6d2b8 | 4236 | return FALSE; |
046b007d TG |
4237 | |
4238 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4239 | return FALSE; |
046b007d TG |
4240 | |
4241 | for (i = 0; i < cmd->nindirectsyms; i++) | |
07d6d2b8 AM |
4242 | { |
4243 | unsigned char raw[4]; | |
4244 | unsigned int *is = &cmd->indirect_syms[i]; | |
046b007d | 4245 | |
07d6d2b8 AM |
4246 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
4247 | return FALSE; | |
046b007d | 4248 | |
07d6d2b8 AM |
4249 | *is = bfd_h_get_32 (abfd, raw); |
4250 | } | |
046b007d TG |
4251 | } |
4252 | ||
4253 | if (cmd->nextrefsyms != 0) | |
4254 | { | |
046b007d TG |
4255 | unsigned long v; |
4256 | unsigned int i; | |
4257 | ||
64d29018 | 4258 | cmd->ext_refs = bfd_alloc2 |
07d6d2b8 | 4259 | (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference)); |
046b007d | 4260 | if (cmd->ext_refs == NULL) |
07d6d2b8 | 4261 | return FALSE; |
046b007d TG |
4262 | |
4263 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4264 | return FALSE; |
046b007d TG |
4265 | |
4266 | for (i = 0; i < cmd->nextrefsyms; i++) | |
07d6d2b8 AM |
4267 | { |
4268 | unsigned char raw[4]; | |
4269 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
4270 | ||
4271 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) | |
4272 | return FALSE; | |
4273 | ||
4274 | /* Fields isym and flags are written as bit-fields, thus we need | |
4275 | a specific processing for endianness. */ | |
4276 | v = bfd_h_get_32 (abfd, raw); | |
4277 | if (bfd_big_endian (abfd)) | |
4278 | { | |
4279 | ref->isym = (v >> 8) & 0xffffff; | |
4280 | ref->flags = v & 0xff; | |
4281 | } | |
4282 | else | |
4283 | { | |
4284 | ref->isym = v & 0xffffff; | |
4285 | ref->flags = (v >> 24) & 0xff; | |
4286 | } | |
4287 | } | |
046b007d | 4288 | } |
3af9a47b | 4289 | |
b32e07d7 | 4290 | if (mdata->dysymtab) |
452216ab | 4291 | return FALSE; |
b32e07d7 TG |
4292 | mdata->dysymtab = cmd; |
4293 | ||
452216ab | 4294 | return TRUE; |
3af9a47b NC |
4295 | } |
4296 | ||
452216ab | 4297 | static bfd_boolean |
ab273af8 | 4298 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4299 | { |
046b007d TG |
4300 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
4301 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 4302 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
4303 | |
4304 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
4305 | ||
47daa70f | 4306 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4307 | return FALSE; |
a95a4550 | 4308 | |
46d1c23b TG |
4309 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
4310 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
4311 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
4312 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
4313 | symtab->symbols = NULL; |
4314 | symtab->strtab = NULL; | |
3af9a47b | 4315 | |
046b007d | 4316 | if (symtab->nsyms != 0) |
15e1c58a TG |
4317 | abfd->flags |= HAS_SYMS; |
4318 | ||
046b007d | 4319 | if (mdata->symtab) |
452216ab | 4320 | return FALSE; |
046b007d | 4321 | mdata->symtab = symtab; |
452216ab | 4322 | return TRUE; |
3af9a47b NC |
4323 | } |
4324 | ||
452216ab | 4325 | static bfd_boolean |
ab273af8 | 4326 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
4327 | { |
4328 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
4329 | |
4330 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
4331 | ||
47daa70f | 4332 | if (bfd_bread (cmd->uuid, 16, abfd) != 16) |
452216ab | 4333 | return FALSE; |
15e1c58a | 4334 | |
452216ab | 4335 | return TRUE; |
15e1c58a TG |
4336 | } |
4337 | ||
452216ab | 4338 | static bfd_boolean |
ab273af8 | 4339 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4340 | { |
4341 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 4342 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 4343 | |
47daa70f | 4344 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4345 | return FALSE; |
046b007d | 4346 | |
46d1c23b TG |
4347 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
4348 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
452216ab | 4349 | return TRUE; |
046b007d TG |
4350 | } |
4351 | ||
452216ab | 4352 | static bfd_boolean |
ab273af8 | 4353 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4354 | { |
4355 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 4356 | struct mach_o_str_command_external raw; |
046b007d TG |
4357 | unsigned long off; |
4358 | ||
47daa70f | 4359 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4360 | return FALSE; |
046b007d | 4361 | |
46d1c23b | 4362 | off = bfd_get_32 (abfd, raw.str); |
046b007d TG |
4363 | cmd->stroff = command->offset + off; |
4364 | cmd->str_len = command->len - off; | |
4365 | cmd->str = bfd_alloc (abfd, cmd->str_len); | |
4366 | if (cmd->str == NULL) | |
452216ab | 4367 | return FALSE; |
046b007d | 4368 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 |
91d6fa6a | 4369 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
452216ab TG |
4370 | return FALSE; |
4371 | return TRUE; | |
046b007d TG |
4372 | } |
4373 | ||
c9ffd2ea TG |
4374 | static unsigned char * |
4375 | bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size) | |
4376 | { | |
4377 | unsigned char *buf; | |
4378 | ||
4379 | buf = bfd_alloc (abfd, size); | |
4380 | if (buf == NULL) | |
4381 | return NULL; | |
4382 | if (bfd_seek (abfd, off, SEEK_SET) != 0 | |
4383 | || bfd_bread (buf, size, abfd) != size) | |
4384 | return NULL; | |
4385 | return buf; | |
4386 | } | |
4387 | ||
4388 | static bfd_boolean | |
4389 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd) | |
4390 | { | |
4391 | /* Read rebase content. */ | |
4392 | if (cmd->rebase_content == NULL && cmd->rebase_size != 0) | |
4393 | { | |
4394 | cmd->rebase_content = | |
4395 | bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size); | |
4396 | if (cmd->rebase_content == NULL) | |
4397 | return FALSE; | |
4398 | } | |
4399 | ||
4400 | /* Read bind content. */ | |
4401 | if (cmd->bind_content == NULL && cmd->bind_size != 0) | |
4402 | { | |
4403 | cmd->bind_content = | |
4404 | bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size); | |
4405 | if (cmd->bind_content == NULL) | |
4406 | return FALSE; | |
4407 | } | |
4408 | ||
4409 | /* Read weak bind content. */ | |
4410 | if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0) | |
4411 | { | |
4412 | cmd->weak_bind_content = bfd_mach_o_alloc_and_read | |
4413 | (abfd, cmd->weak_bind_off, cmd->weak_bind_size); | |
4414 | if (cmd->weak_bind_content == NULL) | |
4415 | return FALSE; | |
4416 | } | |
4417 | ||
4418 | /* Read lazy bind content. */ | |
4419 | if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0) | |
4420 | { | |
4421 | cmd->lazy_bind_content = bfd_mach_o_alloc_and_read | |
4422 | (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size); | |
4423 | if (cmd->lazy_bind_content == NULL) | |
4424 | return FALSE; | |
4425 | } | |
4426 | ||
4427 | /* Read export content. */ | |
4428 | if (cmd->export_content == NULL && cmd->export_size != 0) | |
4429 | { | |
4430 | cmd->export_content = bfd_mach_o_alloc_and_read | |
4431 | (abfd, cmd->export_off, cmd->export_size); | |
4432 | if (cmd->export_content == NULL) | |
4433 | return FALSE; | |
4434 | } | |
4435 | ||
4436 | return TRUE; | |
4437 | } | |
4438 | ||
452216ab | 4439 | static bfd_boolean |
ab273af8 | 4440 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
4441 | { |
4442 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 4443 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 4444 | |
47daa70f | 4445 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4446 | return FALSE; |
ad86f1fb | 4447 | |
46d1c23b TG |
4448 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
4449 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
c9ffd2ea | 4450 | cmd->rebase_content = NULL; |
46d1c23b TG |
4451 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); |
4452 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
c9ffd2ea | 4453 | cmd->bind_content = NULL; |
46d1c23b TG |
4454 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); |
4455 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
c9ffd2ea | 4456 | cmd->weak_bind_content = NULL; |
46d1c23b TG |
4457 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); |
4458 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
c9ffd2ea | 4459 | cmd->lazy_bind_content = NULL; |
46d1c23b TG |
4460 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); |
4461 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
c9ffd2ea | 4462 | cmd->export_content = NULL; |
452216ab | 4463 | return TRUE; |
ad86f1fb TG |
4464 | } |
4465 | ||
edbdea0e TG |
4466 | static bfd_boolean |
4467 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
4468 | { | |
4469 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
4470 | struct mach_o_version_min_command_external raw; | |
4471 | unsigned int ver; | |
4472 | ||
47daa70f | 4473 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
edbdea0e TG |
4474 | return FALSE; |
4475 | ||
4476 | ver = bfd_get_32 (abfd, raw.version); | |
4477 | cmd->rel = ver >> 16; | |
4478 | cmd->maj = ver >> 8; | |
4479 | cmd->min = ver; | |
4480 | cmd->reserved = bfd_get_32 (abfd, raw.reserved); | |
4481 | return TRUE; | |
4482 | } | |
4483 | ||
fc55a902 TG |
4484 | static bfd_boolean |
4485 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) | |
4486 | { | |
4487 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4488 | struct mach_o_encryption_info_command_external raw; | |
4489 | ||
47daa70f TG |
4490 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4491 | return FALSE; | |
4492 | ||
4493 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4494 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4495 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4496 | return TRUE; | |
4497 | } | |
4498 | ||
4499 | static bfd_boolean | |
4500 | bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command) | |
4501 | { | |
4502 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4503 | struct mach_o_encryption_info_64_command_external raw; | |
4504 | ||
4505 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
fc55a902 TG |
4506 | return FALSE; |
4507 | ||
4508 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4509 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4510 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4511 | return TRUE; | |
4512 | } | |
4513 | ||
1778ad74 TG |
4514 | static bfd_boolean |
4515 | bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command) | |
4516 | { | |
4517 | bfd_mach_o_main_command *cmd = &command->command.main; | |
4518 | struct mach_o_entry_point_command_external raw; | |
4519 | ||
47daa70f | 4520 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4521 | return FALSE; |
4522 | ||
4523 | cmd->entryoff = bfd_get_64 (abfd, raw.entryoff); | |
4524 | cmd->stacksize = bfd_get_64 (abfd, raw.stacksize); | |
4525 | return TRUE; | |
4526 | } | |
4527 | ||
4528 | static bfd_boolean | |
4529 | bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command) | |
4530 | { | |
4531 | bfd_mach_o_source_version_command *cmd = &command->command.source_version; | |
4532 | struct mach_o_source_version_command_external raw; | |
4533 | bfd_uint64_t ver; | |
4534 | ||
47daa70f | 4535 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4536 | return FALSE; |
4537 | ||
4538 | ver = bfd_get_64 (abfd, raw.version); | |
4539 | /* Note: we use a serie of shift to avoid shift > 32 (for which gcc | |
4540 | generates warnings) in case of the host doesn't support 64 bit | |
4541 | integers. */ | |
4542 | cmd->e = ver & 0x3ff; | |
4543 | ver >>= 10; | |
4544 | cmd->d = ver & 0x3ff; | |
4545 | ver >>= 10; | |
4546 | cmd->c = ver & 0x3ff; | |
4547 | ver >>= 10; | |
4548 | cmd->b = ver & 0x3ff; | |
4549 | ver >>= 10; | |
4550 | cmd->a = ver & 0xffffff; | |
4551 | return TRUE; | |
4552 | } | |
4553 | ||
452216ab | 4554 | static bfd_boolean |
ab273af8 | 4555 | bfd_mach_o_read_segment (bfd *abfd, |
07d6d2b8 AM |
4556 | bfd_mach_o_load_command *command, |
4557 | unsigned int wide) | |
3af9a47b | 4558 | { |
3af9a47b NC |
4559 | bfd_mach_o_segment_command *seg = &command->command.segment; |
4560 | unsigned long i; | |
a95a4550 | 4561 | |
1e8a024a TG |
4562 | if (wide) |
4563 | { | |
46d1c23b TG |
4564 | struct mach_o_segment_command_64_external raw; |
4565 | ||
1e8a024a | 4566 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 4567 | |
47daa70f | 4568 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4569 | return FALSE; |
3af9a47b | 4570 | |
46d1c23b | 4571 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4572 | seg->segname[16] = '\0'; |
1e8a024a | 4573 | |
46d1c23b TG |
4574 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
4575 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
4576 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
4577 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
4578 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4579 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4580 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4581 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
4582 | } |
4583 | else | |
4584 | { | |
46d1c23b TG |
4585 | struct mach_o_segment_command_32_external raw; |
4586 | ||
1e8a024a TG |
4587 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
4588 | ||
47daa70f | 4589 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4590 | return FALSE; |
1e8a024a | 4591 | |
46d1c23b | 4592 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4593 | seg->segname[16] = '\0'; |
1e8a024a | 4594 | |
46d1c23b TG |
4595 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
4596 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
4597 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
4598 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
4599 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4600 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4601 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4602 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 4603 | } |
9d4b6009 TG |
4604 | seg->sect_head = NULL; |
4605 | seg->sect_tail = NULL; | |
3af9a47b | 4606 | |
f1bde64c | 4607 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 4608 | { |
f1bde64c | 4609 | asection *sec; |
a95a4550 | 4610 | |
47daa70f | 4611 | sec = bfd_mach_o_read_section (abfd, seg->initprot, wide); |
f1bde64c | 4612 | if (sec == NULL) |
07d6d2b8 | 4613 | return FALSE; |
f1bde64c | 4614 | |
c9ffd2ea TG |
4615 | bfd_mach_o_append_section_to_segment |
4616 | (seg, bfd_mach_o_get_mach_o_section (sec)); | |
3af9a47b NC |
4617 | } |
4618 | ||
452216ab | 4619 | return TRUE; |
3af9a47b NC |
4620 | } |
4621 | ||
452216ab | 4622 | static bfd_boolean |
ab273af8 | 4623 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4624 | { |
ab273af8 | 4625 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
4626 | } |
4627 | ||
452216ab | 4628 | static bfd_boolean |
ab273af8 | 4629 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4630 | { |
ab273af8 | 4631 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
4632 | } |
4633 | ||
452216ab | 4634 | static bfd_boolean |
ab273af8 | 4635 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4636 | { |
47daa70f | 4637 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
46d1c23b TG |
4638 | struct mach_o_load_command_external raw; |
4639 | unsigned int cmd; | |
3af9a47b | 4640 | |
046b007d | 4641 | /* Read command type and length. */ |
47daa70f | 4642 | if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0 |
46d1c23b | 4643 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
452216ab | 4644 | return FALSE; |
3af9a47b | 4645 | |
46d1c23b TG |
4646 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
4647 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; | |
4648 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; | |
4649 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3af9a47b NC |
4650 | |
4651 | switch (command->type) | |
4652 | { | |
4653 | case BFD_MACH_O_LC_SEGMENT: | |
452216ab TG |
4654 | if (!bfd_mach_o_read_segment_32 (abfd, command)) |
4655 | return FALSE; | |
1e8a024a TG |
4656 | break; |
4657 | case BFD_MACH_O_LC_SEGMENT_64: | |
452216ab TG |
4658 | if (!bfd_mach_o_read_segment_64 (abfd, command)) |
4659 | return FALSE; | |
3af9a47b NC |
4660 | break; |
4661 | case BFD_MACH_O_LC_SYMTAB: | |
452216ab TG |
4662 | if (!bfd_mach_o_read_symtab (abfd, command)) |
4663 | return FALSE; | |
3af9a47b NC |
4664 | break; |
4665 | case BFD_MACH_O_LC_SYMSEG: | |
4666 | break; | |
4667 | case BFD_MACH_O_LC_THREAD: | |
4668 | case BFD_MACH_O_LC_UNIXTHREAD: | |
452216ab TG |
4669 | if (!bfd_mach_o_read_thread (abfd, command)) |
4670 | return FALSE; | |
3af9a47b NC |
4671 | break; |
4672 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
4673 | case BFD_MACH_O_LC_ID_DYLINKER: | |
10be66a4 | 4674 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
452216ab TG |
4675 | if (!bfd_mach_o_read_dylinker (abfd, command)) |
4676 | return FALSE; | |
3af9a47b NC |
4677 | break; |
4678 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4679 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
3af9a47b NC |
4680 | case BFD_MACH_O_LC_ID_DYLIB: |
4681 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 4682 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4683 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
452216ab TG |
4684 | if (!bfd_mach_o_read_dylib (abfd, command)) |
4685 | return FALSE; | |
3af9a47b NC |
4686 | break; |
4687 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
452216ab TG |
4688 | if (!bfd_mach_o_read_prebound_dylib (abfd, command)) |
4689 | return FALSE; | |
3af9a47b NC |
4690 | break; |
4691 | case BFD_MACH_O_LC_LOADFVMLIB: | |
4692 | case BFD_MACH_O_LC_IDFVMLIB: | |
452216ab TG |
4693 | if (!bfd_mach_o_read_fvmlib (abfd, command)) |
4694 | return FALSE; | |
9f4a5bd1 | 4695 | break; |
3af9a47b NC |
4696 | case BFD_MACH_O_LC_IDENT: |
4697 | case BFD_MACH_O_LC_FVMFILE: | |
4698 | case BFD_MACH_O_LC_PREPAGE: | |
4699 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 4700 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 4701 | break; |
3af9a47b | 4702 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
4703 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
4704 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
4705 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 4706 | case BFD_MACH_O_LC_RPATH: |
452216ab | 4707 | if (!bfd_mach_o_read_str (abfd, command)) |
07d6d2b8 | 4708 | return FALSE; |
3af9a47b NC |
4709 | break; |
4710 | case BFD_MACH_O_LC_DYSYMTAB: | |
452216ab TG |
4711 | if (!bfd_mach_o_read_dysymtab (abfd, command)) |
4712 | return FALSE; | |
3af9a47b | 4713 | break; |
3af9a47b | 4714 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
452216ab TG |
4715 | if (!bfd_mach_o_read_prebind_cksum (abfd, command)) |
4716 | return FALSE; | |
7a79c514 TG |
4717 | break; |
4718 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
452216ab TG |
4719 | if (!bfd_mach_o_read_twolevel_hints (abfd, command)) |
4720 | return FALSE; | |
3af9a47b | 4721 | break; |
15e1c58a | 4722 | case BFD_MACH_O_LC_UUID: |
452216ab TG |
4723 | if (!bfd_mach_o_read_uuid (abfd, command)) |
4724 | return FALSE; | |
15e1c58a TG |
4725 | break; |
4726 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 4727 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 4728 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
1778ad74 TG |
4729 | case BFD_MACH_O_LC_DATA_IN_CODE: |
4730 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: | |
47daa70f | 4731 | case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT: |
452216ab TG |
4732 | if (!bfd_mach_o_read_linkedit (abfd, command)) |
4733 | return FALSE; | |
15e1c58a | 4734 | break; |
fc55a902 TG |
4735 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
4736 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
452216ab | 4737 | return FALSE; |
fc55a902 | 4738 | break; |
47daa70f TG |
4739 | case BFD_MACH_O_LC_ENCRYPTION_INFO_64: |
4740 | if (!bfd_mach_o_read_encryption_info_64 (abfd, command)) | |
4741 | return FALSE; | |
4742 | break; | |
ad86f1fb | 4743 | case BFD_MACH_O_LC_DYLD_INFO: |
452216ab TG |
4744 | if (!bfd_mach_o_read_dyld_info (abfd, command)) |
4745 | return FALSE; | |
ad86f1fb | 4746 | break; |
edbdea0e TG |
4747 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
4748 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
47daa70f | 4749 | case BFD_MACH_O_LC_VERSION_MIN_WATCHOS: |
edbdea0e | 4750 | if (!bfd_mach_o_read_version_min (abfd, command)) |
452216ab | 4751 | return FALSE; |
edbdea0e | 4752 | break; |
1778ad74 TG |
4753 | case BFD_MACH_O_LC_MAIN: |
4754 | if (!bfd_mach_o_read_main (abfd, command)) | |
452216ab | 4755 | return FALSE; |
1778ad74 TG |
4756 | break; |
4757 | case BFD_MACH_O_LC_SOURCE_VERSION: | |
4758 | if (!bfd_mach_o_read_source_version (abfd, command)) | |
452216ab | 4759 | return FALSE; |
1778ad74 | 4760 | break; |
3af9a47b | 4761 | default: |
86eafac0 | 4762 | command->len = 0; |
871b3ab2 | 4763 | _bfd_error_handler (_("%pB: unknown load command %#x"), |
d42c267e | 4764 | abfd, command->type); |
86eafac0 | 4765 | return FALSE; |
3af9a47b NC |
4766 | } |
4767 | ||
452216ab | 4768 | return TRUE; |
3af9a47b NC |
4769 | } |
4770 | ||
4771 | static void | |
116c20d2 | 4772 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 4773 | { |
046b007d | 4774 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea | 4775 | bfd_mach_o_load_command *cmd; |
3af9a47b | 4776 | long csect = 0; |
a95a4550 | 4777 | |
15e1c58a | 4778 | /* Count total number of sections. */ |
3af9a47b NC |
4779 | mdata->nsects = 0; |
4780 | ||
c9ffd2ea | 4781 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4782 | { |
c9ffd2ea TG |
4783 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4784 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4785 | { |
c9ffd2ea | 4786 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
e84d6fca | 4787 | |
3af9a47b NC |
4788 | mdata->nsects += seg->nsects; |
4789 | } | |
4790 | } | |
4791 | ||
15e1c58a | 4792 | /* Allocate sections array. */ |
64d29018 NC |
4793 | mdata->sections = bfd_alloc2 (abfd, |
4794 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
15e1c58a TG |
4795 | |
4796 | /* Fill the array. */ | |
3af9a47b NC |
4797 | csect = 0; |
4798 | ||
c9ffd2ea | 4799 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4800 | { |
c9ffd2ea TG |
4801 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4802 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4803 | { |
c9ffd2ea | 4804 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
07d6d2b8 | 4805 | bfd_mach_o_section *sec; |
3af9a47b NC |
4806 | |
4807 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); | |
4808 | ||
07d6d2b8 | 4809 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
f1bde64c | 4810 | mdata->sections[csect++] = sec; |
3af9a47b NC |
4811 | } |
4812 | } | |
4813 | } | |
4814 | ||
afbb9e17 | 4815 | static bfd_boolean |
116c20d2 | 4816 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 4817 | { |
046b007d | 4818 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
4819 | bfd_mach_o_thread_command *thr = NULL; |
4820 | bfd_mach_o_load_command *cmd; | |
3af9a47b NC |
4821 | unsigned long i; |
4822 | ||
c9ffd2ea TG |
4823 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
4824 | if (cmd->type == BFD_MACH_O_LC_THREAD | |
4825 | || cmd->type == BFD_MACH_O_LC_UNIXTHREAD) | |
afbb9e17 | 4826 | { |
07d6d2b8 AM |
4827 | thr = &cmd->command.thread; |
4828 | break; | |
afbb9e17 | 4829 | } |
c9ffd2ea | 4830 | else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1) |
c0fd7846 | 4831 | { |
c9ffd2ea | 4832 | bfd_mach_o_main_command *main_cmd = &cmd->command.main; |
c0fd7846 | 4833 | bfd_mach_o_section *text_sect = mdata->sections[0]; |
c9ffd2ea | 4834 | |
c0fd7846 TG |
4835 | if (text_sect) |
4836 | { | |
4837 | abfd->start_address = main_cmd->entryoff | |
4838 | + (text_sect->addr - text_sect->offset); | |
4839 | return TRUE; | |
4840 | } | |
4841 | } | |
3af9a47b | 4842 | |
5ee43bc4 | 4843 | /* An object file has no start address, so do not fail if not found. */ |
c9ffd2ea | 4844 | if (thr == NULL) |
5ee43bc4 | 4845 | return TRUE; |
3af9a47b | 4846 | |
afbb9e17 | 4847 | /* FIXME: create a subtarget hook ? */ |
c9ffd2ea | 4848 | for (i = 0; i < thr->nflavours; i++) |
3af9a47b | 4849 | { |
a95a4550 | 4850 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
c9ffd2ea | 4851 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
4852 | { |
4853 | unsigned char buf[4]; | |
4854 | ||
c9ffd2ea | 4855 | if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0 |
07d6d2b8 | 4856 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 4857 | return FALSE; |
3af9a47b NC |
4858 | |
4859 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4860 | } | |
a95a4550 | 4861 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
c9ffd2ea | 4862 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3af9a47b NC |
4863 | { |
4864 | unsigned char buf[4]; | |
4865 | ||
c9ffd2ea | 4866 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
07d6d2b8 | 4867 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 4868 | return FALSE; |
3af9a47b NC |
4869 | |
4870 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4871 | } | |
1e8a024a | 4872 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
07d6d2b8 AM |
4873 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
4874 | { | |
4875 | unsigned char buf[8]; | |
1e8a024a | 4876 | |
07d6d2b8 AM |
4877 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
4878 | || bfd_bread (buf, 8, abfd) != 8) | |
4879 | return FALSE; | |
1e8a024a | 4880 | |
07d6d2b8 AM |
4881 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
4882 | } | |
1e8a024a | 4883 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) |
07d6d2b8 AM |
4884 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) |
4885 | { | |
4886 | unsigned char buf[8]; | |
1e8a024a | 4887 | |
07d6d2b8 AM |
4888 | if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
4889 | || bfd_bread (buf, 8, abfd) != 8) | |
4890 | return FALSE; | |
1e8a024a | 4891 | |
07d6d2b8 AM |
4892 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
4893 | } | |
3af9a47b NC |
4894 | } |
4895 | ||
afbb9e17 | 4896 | return TRUE; |
3af9a47b NC |
4897 | } |
4898 | ||
42fa0891 TG |
4899 | bfd_boolean |
4900 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
07d6d2b8 AM |
4901 | enum bfd_architecture arch, |
4902 | unsigned long machine) | |
42fa0891 TG |
4903 | { |
4904 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
4905 | ||
4906 | /* If this isn't the right architecture for this backend, and this | |
4907 | isn't the generic backend, fail. */ | |
4908 | if (arch != bed->arch | |
4909 | && arch != bfd_arch_unknown | |
4910 | && bed->arch != bfd_arch_unknown) | |
4911 | return FALSE; | |
4912 | ||
4913 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
4914 | } | |
4915 | ||
afbb9e17 | 4916 | static bfd_boolean |
116c20d2 NC |
4917 | bfd_mach_o_scan (bfd *abfd, |
4918 | bfd_mach_o_header *header, | |
4919 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
4920 | { |
4921 | unsigned int i; | |
3af9a47b NC |
4922 | enum bfd_architecture cputype; |
4923 | unsigned long cpusubtype; | |
1e8a024a TG |
4924 | unsigned int hdrsize; |
4925 | ||
c2f09c75 | 4926 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 4927 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 4928 | |
3af9a47b | 4929 | mdata->header = *header; |
3af9a47b | 4930 | |
154a1ee5 | 4931 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
4932 | switch (header->filetype) |
4933 | { | |
4934 | case BFD_MACH_O_MH_OBJECT: | |
4935 | abfd->flags |= HAS_RELOC; | |
4936 | break; | |
4937 | case BFD_MACH_O_MH_EXECUTE: | |
4938 | abfd->flags |= EXEC_P; | |
4939 | break; | |
4940 | case BFD_MACH_O_MH_DYLIB: | |
4941 | case BFD_MACH_O_MH_BUNDLE: | |
4942 | abfd->flags |= DYNAMIC; | |
4943 | break; | |
4944 | } | |
4945 | ||
3af9a47b NC |
4946 | abfd->tdata.mach_o_data = mdata; |
4947 | ||
e84d6fca AM |
4948 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
4949 | &cputype, &cpusubtype); | |
3af9a47b NC |
4950 | if (cputype == bfd_arch_unknown) |
4951 | { | |
4eca0228 | 4952 | _bfd_error_handler |
695344c0 | 4953 | /* xgettext:c-format */ |
07d6d2b8 AM |
4954 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), |
4955 | header->cputype, header->cpusubtype); | |
afbb9e17 | 4956 | return FALSE; |
3af9a47b NC |
4957 | } |
4958 | ||
4959 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 4960 | |
3af9a47b NC |
4961 | if (header->ncmds != 0) |
4962 | { | |
c9ffd2ea TG |
4963 | bfd_mach_o_load_command *cmd; |
4964 | ||
4965 | mdata->first_command = NULL; | |
4966 | mdata->last_command = NULL; | |
64d29018 NC |
4967 | |
4968 | cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command)); | |
c9ffd2ea | 4969 | if (cmd == NULL) |
afbb9e17 | 4970 | return FALSE; |
a95a4550 | 4971 | |
3af9a47b NC |
4972 | for (i = 0; i < header->ncmds; i++) |
4973 | { | |
c9ffd2ea TG |
4974 | bfd_mach_o_load_command *cur = &cmd[i]; |
4975 | ||
4976 | bfd_mach_o_append_command (abfd, cur); | |
3af9a47b NC |
4977 | |
4978 | if (i == 0) | |
1e8a024a | 4979 | cur->offset = hdrsize; |
3af9a47b NC |
4980 | else |
4981 | { | |
c9ffd2ea | 4982 | bfd_mach_o_load_command *prev = &cmd[i - 1]; |
3af9a47b NC |
4983 | cur->offset = prev->offset + prev->len; |
4984 | } | |
4985 | ||
452216ab | 4986 | if (!bfd_mach_o_read_command (abfd, cur)) |
afbb9e17 | 4987 | return FALSE; |
a95a4550 | 4988 | } |
3af9a47b NC |
4989 | } |
4990 | ||
c0fd7846 TG |
4991 | /* Sections should be flatten before scanning start address. */ |
4992 | bfd_mach_o_flatten_sections (abfd); | |
4993 | if (!bfd_mach_o_scan_start_address (abfd)) | |
afbb9e17 | 4994 | return FALSE; |
3af9a47b | 4995 | |
afbb9e17 | 4996 | return TRUE; |
3af9a47b NC |
4997 | } |
4998 | ||
b34976b6 | 4999 | bfd_boolean |
154a1ee5 | 5000 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
5001 | { |
5002 | bfd_mach_o_data_struct *mdata = NULL; | |
5003 | ||
b30a5d18 | 5004 | mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 5005 | if (mdata == NULL) |
b34976b6 | 5006 | return FALSE; |
3af9a47b NC |
5007 | abfd->tdata.mach_o_data = mdata; |
5008 | ||
5009 | mdata->header.magic = 0; | |
5010 | mdata->header.cputype = 0; | |
5011 | mdata->header.cpusubtype = 0; | |
5012 | mdata->header.filetype = 0; | |
5013 | mdata->header.ncmds = 0; | |
5014 | mdata->header.sizeofcmds = 0; | |
5015 | mdata->header.flags = 0; | |
5016 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
c9ffd2ea TG |
5017 | mdata->first_command = NULL; |
5018 | mdata->last_command = NULL; | |
3af9a47b NC |
5019 | mdata->nsects = 0; |
5020 | mdata->sections = NULL; | |
4434114c | 5021 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 5022 | |
b34976b6 | 5023 | return TRUE; |
3af9a47b NC |
5024 | } |
5025 | ||
42fa0891 TG |
5026 | static bfd_boolean |
5027 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
5028 | { | |
5029 | bfd_mach_o_data_struct *mdata; | |
5030 | ||
5031 | if (!bfd_mach_o_mkobject_init (abfd)) | |
5032 | return FALSE; | |
5033 | ||
5034 | mdata = bfd_mach_o_get_data (abfd); | |
5035 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
5036 | mdata->header.cputype = 0; | |
5037 | mdata->header.cpusubtype = 0; | |
5038 | mdata->header.byteorder = abfd->xvec->byteorder; | |
5039 | mdata->header.version = 1; | |
5040 | ||
5041 | return TRUE; | |
5042 | } | |
5043 | ||
3af9a47b | 5044 | const bfd_target * |
154a1ee5 | 5045 | bfd_mach_o_header_p (bfd *abfd, |
47daa70f | 5046 | file_ptr hdr_off, |
07d6d2b8 AM |
5047 | bfd_mach_o_filetype filetype, |
5048 | bfd_mach_o_cpu_type cputype) | |
3af9a47b NC |
5049 | { |
5050 | bfd_mach_o_header header; | |
c9ba0c87 | 5051 | bfd_mach_o_data_struct *mdata; |
3af9a47b | 5052 | |
47daa70f | 5053 | if (!bfd_mach_o_read_header (abfd, hdr_off, &header)) |
e84d6fca | 5054 | goto wrong; |
3af9a47b | 5055 | |
e84d6fca AM |
5056 | if (! (header.byteorder == BFD_ENDIAN_BIG |
5057 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 5058 | { |
d42c267e AM |
5059 | _bfd_error_handler (_("unknown header byte-order value %#x"), |
5060 | header.byteorder); | |
e84d6fca | 5061 | goto wrong; |
3af9a47b NC |
5062 | } |
5063 | ||
e84d6fca AM |
5064 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
5065 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
5066 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
5067 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
5068 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
5069 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
5070 | goto wrong; | |
3af9a47b | 5071 | |
154a1ee5 TG |
5072 | /* Check cputype and filetype. |
5073 | In case of wildcard, do not accept magics that are handled by existing | |
5074 | targets. */ | |
5075 | if (cputype) | |
5076 | { | |
5077 | if (header.cputype != cputype) | |
07d6d2b8 | 5078 | goto wrong; |
154a1ee5 | 5079 | } |
26954155 TG |
5080 | else |
5081 | { | |
5082 | #ifndef BFD64 | |
5083 | /* Do not recognize 64 architectures if not configured for 64bit targets. | |
5084 | This could happen only for generic targets. */ | |
5085 | if (mach_o_wide_p (&header)) | |
5086 | goto wrong; | |
5087 | #endif | |
5088 | } | |
b22161d6 | 5089 | |
154a1ee5 TG |
5090 | if (filetype) |
5091 | { | |
5092 | if (header.filetype != filetype) | |
07d6d2b8 | 5093 | goto wrong; |
154a1ee5 TG |
5094 | } |
5095 | else | |
5096 | { | |
5097 | switch (header.filetype) | |
07d6d2b8 AM |
5098 | { |
5099 | case BFD_MACH_O_MH_CORE: | |
5100 | /* Handled by core_p */ | |
5101 | goto wrong; | |
5102 | default: | |
5103 | break; | |
5104 | } | |
154a1ee5 TG |
5105 | } |
5106 | ||
c9ba0c87 AM |
5107 | mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata)); |
5108 | if (mdata == NULL) | |
e84d6fca | 5109 | goto fail; |
47daa70f | 5110 | mdata->hdr_offset = hdr_off; |
3af9a47b | 5111 | |
c9ba0c87 | 5112 | if (!bfd_mach_o_scan (abfd, &header, mdata)) |
e84d6fca | 5113 | goto wrong; |
a95a4550 | 5114 | |
3af9a47b | 5115 | return abfd->xvec; |
e84d6fca AM |
5116 | |
5117 | wrong: | |
5118 | bfd_set_error (bfd_error_wrong_format); | |
5119 | ||
5120 | fail: | |
e84d6fca | 5121 | return NULL; |
3af9a47b NC |
5122 | } |
5123 | ||
154a1ee5 TG |
5124 | static const bfd_target * |
5125 | bfd_mach_o_gen_object_p (bfd *abfd) | |
3af9a47b | 5126 | { |
47daa70f | 5127 | return bfd_mach_o_header_p (abfd, 0, 0, 0); |
154a1ee5 | 5128 | } |
e84d6fca | 5129 | |
154a1ee5 TG |
5130 | static const bfd_target * |
5131 | bfd_mach_o_gen_core_p (bfd *abfd) | |
5132 | { | |
47daa70f | 5133 | return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0); |
3af9a47b NC |
5134 | } |
5135 | ||
3cc27770 TG |
5136 | /* Return the base address of ABFD, ie the address at which the image is |
5137 | mapped. The possible initial pagezero is ignored. */ | |
5138 | ||
5139 | bfd_vma | |
5140 | bfd_mach_o_get_base_address (bfd *abfd) | |
5141 | { | |
5142 | bfd_mach_o_data_struct *mdata; | |
c9ffd2ea | 5143 | bfd_mach_o_load_command *cmd; |
3cc27770 TG |
5144 | |
5145 | /* Check for Mach-O. */ | |
5146 | if (!bfd_mach_o_valid (abfd)) | |
5147 | return 0; | |
5148 | mdata = bfd_mach_o_get_data (abfd); | |
5149 | ||
c9ffd2ea | 5150 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3cc27770 | 5151 | { |
3cc27770 TG |
5152 | if ((cmd->type == BFD_MACH_O_LC_SEGMENT |
5153 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64)) | |
5154 | { | |
5155 | struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment; | |
5156 | ||
5157 | if (segcmd->initprot != 0) | |
5158 | return segcmd->vmaddr; | |
5159 | } | |
5160 | } | |
5161 | return 0; | |
5162 | } | |
5163 | ||
3af9a47b NC |
5164 | typedef struct mach_o_fat_archentry |
5165 | { | |
5166 | unsigned long cputype; | |
5167 | unsigned long cpusubtype; | |
5168 | unsigned long offset; | |
5169 | unsigned long size; | |
5170 | unsigned long align; | |
3af9a47b NC |
5171 | } mach_o_fat_archentry; |
5172 | ||
5173 | typedef struct mach_o_fat_data_struct | |
5174 | { | |
5175 | unsigned long magic; | |
5176 | unsigned long nfat_arch; | |
5177 | mach_o_fat_archentry *archentries; | |
5178 | } mach_o_fat_data_struct; | |
5179 | ||
5180 | const bfd_target * | |
47daa70f | 5181 | bfd_mach_o_fat_archive_p (bfd *abfd) |
3af9a47b | 5182 | { |
e84d6fca | 5183 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 5184 | struct mach_o_fat_header_external hdr; |
3af9a47b NC |
5185 | unsigned long i; |
5186 | ||
c2f09c75 | 5187 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 5188 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 5189 | goto error; |
3af9a47b | 5190 | |
116c20d2 | 5191 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 5192 | if (adata == NULL) |
e84d6fca | 5193 | goto error; |
a95a4550 | 5194 | |
46d1c23b TG |
5195 | adata->magic = bfd_getb32 (hdr.magic); |
5196 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 5197 | if (adata->magic != 0xcafebabe) |
e84d6fca | 5198 | goto error; |
27cc28f9 AS |
5199 | /* Avoid matching Java bytecode files, which have the same magic number. |
5200 | In the Java bytecode file format this field contains the JVM version, | |
5201 | which starts at 43.0. */ | |
5202 | if (adata->nfat_arch > 30) | |
5203 | goto error; | |
3af9a47b | 5204 | |
c2f09c75 | 5205 | adata->archentries = |
64d29018 | 5206 | bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry)); |
3af9a47b | 5207 | if (adata->archentries == NULL) |
e84d6fca | 5208 | goto error; |
3af9a47b NC |
5209 | |
5210 | for (i = 0; i < adata->nfat_arch; i++) | |
5211 | { | |
46d1c23b TG |
5212 | struct mach_o_fat_arch_external arch; |
5213 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 5214 | goto error; |
46d1c23b TG |
5215 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
5216 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
5217 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
5218 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
5219 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
5220 | } |
5221 | ||
5222 | abfd->tdata.mach_o_fat_data = adata; | |
64d29018 | 5223 | |
3af9a47b | 5224 | return abfd->xvec; |
e84d6fca AM |
5225 | |
5226 | error: | |
5227 | if (adata != NULL) | |
5228 | bfd_release (abfd, adata); | |
5229 | bfd_set_error (bfd_error_wrong_format); | |
5230 | return NULL; | |
3af9a47b NC |
5231 | } |
5232 | ||
a4e241ca TG |
5233 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
5234 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
5235 | Set arelt_data and origin fields too. */ | |
5236 | ||
5237 | static void | |
5238 | bfd_mach_o_fat_member_init (bfd *abfd, | |
07d6d2b8 AM |
5239 | enum bfd_architecture arch_type, |
5240 | unsigned long arch_subtype, | |
5241 | mach_o_fat_archentry *entry) | |
a4e241ca TG |
5242 | { |
5243 | struct areltdata *areltdata; | |
5244 | /* Create the member filename. Use ARCH_NAME. */ | |
5245 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
5246 | ||
5247 | if (ap) | |
5248 | { | |
5249 | /* Use the architecture name if known. */ | |
1be5090b | 5250 | abfd->filename = xstrdup (ap->printable_name); |
a4e241ca TG |
5251 | } |
5252 | else | |
5253 | { | |
5254 | /* Forge a uniq id. */ | |
5255 | const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1; | |
1be5090b | 5256 | char *name = xmalloc (namelen); |
a4e241ca | 5257 | snprintf (name, namelen, "0x%lx-0x%lx", |
07d6d2b8 | 5258 | entry->cputype, entry->cpusubtype); |
a4e241ca TG |
5259 | abfd->filename = name; |
5260 | } | |
5261 | ||
06e7acd7 | 5262 | areltdata = bfd_zmalloc (sizeof (struct areltdata)); |
a4e241ca TG |
5263 | areltdata->parsed_size = entry->size; |
5264 | abfd->arelt_data = areltdata; | |
5265 | abfd->iostream = NULL; | |
5266 | abfd->origin = entry->offset; | |
5267 | } | |
5268 | ||
3af9a47b | 5269 | bfd * |
47daa70f | 5270 | bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 5271 | { |
e84d6fca | 5272 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
5273 | mach_o_fat_archentry *entry = NULL; |
5274 | unsigned long i; | |
15e1c58a | 5275 | bfd *nbfd; |
15e1c58a TG |
5276 | enum bfd_architecture arch_type; |
5277 | unsigned long arch_subtype; | |
3af9a47b | 5278 | |
e84d6fca | 5279 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
5280 | BFD_ASSERT (adata != NULL); |
5281 | ||
5282 | /* Find index of previous entry. */ | |
5283 | if (prev == NULL) | |
a4e241ca TG |
5284 | { |
5285 | /* Start at first one. */ | |
5286 | i = 0; | |
5287 | } | |
3af9a47b NC |
5288 | else |
5289 | { | |
a4e241ca | 5290 | /* Find index of PREV. */ |
3af9a47b NC |
5291 | for (i = 0; i < adata->nfat_arch; i++) |
5292 | { | |
15e1c58a | 5293 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
5294 | break; |
5295 | } | |
5296 | ||
5297 | if (i == adata->nfat_arch) | |
5298 | { | |
5299 | /* Not found. */ | |
5300 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 5301 | return NULL; |
3af9a47b | 5302 | } |
a4e241ca TG |
5303 | |
5304 | /* Get next entry. */ | |
5305 | i++; | |
5306 | } | |
a95a4550 | 5307 | |
3af9a47b NC |
5308 | if (i >= adata->nfat_arch) |
5309 | { | |
5310 | bfd_set_error (bfd_error_no_more_archived_files); | |
5311 | return NULL; | |
5312 | } | |
5313 | ||
5314 | entry = &adata->archentries[i]; | |
15e1c58a TG |
5315 | nbfd = _bfd_new_bfd_contained_in (archive); |
5316 | if (nbfd == NULL) | |
5317 | return NULL; | |
5318 | ||
15e1c58a TG |
5319 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
5320 | &arch_type, &arch_subtype); | |
846b9259 | 5321 | |
a4e241ca TG |
5322 | bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry); |
5323 | ||
846b9259 | 5324 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 5325 | |
15e1c58a | 5326 | return nbfd; |
3af9a47b NC |
5327 | } |
5328 | ||
15bbba8d TG |
5329 | /* Analogous to stat call. */ |
5330 | ||
5331 | static int | |
5332 | bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf) | |
5333 | { | |
5334 | if (abfd->arelt_data == NULL) | |
5335 | { | |
5336 | bfd_set_error (bfd_error_invalid_operation); | |
5337 | return -1; | |
5338 | } | |
5339 | ||
5340 | buf->st_mtime = 0; | |
5341 | buf->st_uid = 0; | |
5342 | buf->st_gid = 0; | |
5343 | buf->st_mode = 0644; | |
5344 | buf->st_size = arelt_size (abfd); | |
5345 | ||
5346 | return 0; | |
5347 | } | |
5348 | ||
846b9259 TG |
5349 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
5350 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
5351 | and ARCH, returns it. | |
5352 | In other case, returns NULL. | |
5353 | This function allows transparent uses of fat images. */ | |
a4e241ca | 5354 | |
846b9259 TG |
5355 | bfd * |
5356 | bfd_mach_o_fat_extract (bfd *abfd, | |
5357 | bfd_format format, | |
5358 | const bfd_arch_info_type *arch) | |
5359 | { | |
5360 | bfd *res; | |
5361 | mach_o_fat_data_struct *adata; | |
5362 | unsigned int i; | |
5363 | ||
5364 | if (bfd_check_format (abfd, format)) | |
5365 | { | |
5366 | if (bfd_get_arch_info (abfd) == arch) | |
5367 | return abfd; | |
5368 | return NULL; | |
5369 | } | |
5370 | if (!bfd_check_format (abfd, bfd_archive) | |
5371 | || abfd->xvec != &mach_o_fat_vec) | |
5372 | return NULL; | |
c2f09c75 | 5373 | |
846b9259 TG |
5374 | /* This is a Mach-O fat image. */ |
5375 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
5376 | BFD_ASSERT (adata != NULL); | |
5377 | ||
5378 | for (i = 0; i < adata->nfat_arch; i++) | |
5379 | { | |
5380 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
5381 | enum bfd_architecture cpu_type; | |
5382 | unsigned long cpu_subtype; | |
5383 | ||
5384 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
5385 | &cpu_type, &cpu_subtype); | |
5386 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
5387 | continue; | |
5388 | ||
5389 | /* The architecture is found. */ | |
5390 | res = _bfd_new_bfd_contained_in (abfd); | |
5391 | if (res == NULL) | |
5392 | return NULL; | |
5393 | ||
a4e241ca | 5394 | bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e); |
846b9259 TG |
5395 | |
5396 | if (bfd_check_format (res, format)) | |
5397 | { | |
5398 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
5399 | return res; | |
5400 | } | |
5401 | bfd_close (res); | |
5402 | return NULL; | |
5403 | } | |
5404 | ||
5405 | return NULL; | |
5406 | } | |
5407 | ||
3af9a47b | 5408 | int |
116c20d2 NC |
5409 | bfd_mach_o_lookup_command (bfd *abfd, |
5410 | bfd_mach_o_load_command_type type, | |
5411 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 5412 | { |
c9ffd2ea TG |
5413 | struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
5414 | struct bfd_mach_o_load_command *cmd; | |
5415 | unsigned int num; | |
3af9a47b | 5416 | |
c9ffd2ea | 5417 | BFD_ASSERT (mdata != NULL); |
3af9a47b NC |
5418 | BFD_ASSERT (mcommand != NULL); |
5419 | ||
5420 | num = 0; | |
c9ffd2ea | 5421 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5422 | { |
3af9a47b NC |
5423 | if (cmd->type != type) |
5424 | continue; | |
5425 | ||
5426 | if (num == 0) | |
c9ffd2ea | 5427 | *mcommand = cmd; |
3af9a47b NC |
5428 | num++; |
5429 | } | |
5430 | ||
3af9a47b NC |
5431 | return num; |
5432 | } | |
5433 | ||
5434 | unsigned long | |
116c20d2 | 5435 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
5436 | { |
5437 | switch (type) | |
5438 | { | |
5439 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
5440 | return 0x04000000; | |
5441 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
5442 | return 0xffffe000; | |
5443 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
5444 | return 0xc0000000; | |
5445 | case BFD_MACH_O_CPU_TYPE_I386: | |
5446 | return 0xc0000000; | |
5447 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
5448 | return 0xf0000000; | |
5449 | case BFD_MACH_O_CPU_TYPE_I860: | |
5450 | return 0; | |
5451 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
e84d6fca | 5452 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
5453 | default: |
5454 | return 0; | |
5455 | } | |
5456 | } | |
5457 | ||
ab76eeaf IS |
5458 | /* The following two tables should be kept, as far as possible, in order of |
5459 | most frequently used entries to optimize their use from gas. */ | |
5460 | ||
c5012cd8 | 5461 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
5462 | { |
5463 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 5464 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
5465 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
5466 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
5467 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
5468 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 5469 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 5470 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
5471 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
5472 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
5473 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
5474 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 5475 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
5476 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
5477 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 5478 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
5479 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
5480 | { NULL, 0} | |
5481 | }; | |
5482 | ||
c5012cd8 | 5483 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 5484 | { |
ab76eeaf IS |
5485 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
5486 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
5487 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
5488 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 5489 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
5490 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
5491 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
5492 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
5493 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 5494 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 5495 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
5496 | { NULL, 0} |
5497 | }; | |
5498 | ||
a4551119 | 5499 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
5500 | |
5501 | unsigned int | |
ab76eeaf | 5502 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 5503 | { |
afbb9e17 | 5504 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 5505 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
5506 | |
5507 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
5508 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
5509 | { |
5510 | /* We found it... does the target support it? */ | |
5511 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
5512 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
5513 | return x->val; /* OK. */ | |
5514 | else | |
5515 | break; /* Not supported. */ | |
5516 | } | |
a4551119 TG |
5517 | /* Maximum section ID = 0xff. */ |
5518 | return 256; | |
53d58d96 TG |
5519 | } |
5520 | ||
5521 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
5522 | ||
5523 | unsigned int | |
5524 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
5525 | { | |
afbb9e17 | 5526 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
5527 | |
5528 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
5529 | if (strcmp (x->name, name) == 0) | |
5530 | return x->val; | |
5531 | return (unsigned int)-1; | |
5532 | } | |
5533 | ||
3af9a47b | 5534 | int |
116c20d2 NC |
5535 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
5536 | unsigned char **rbuf, | |
5537 | unsigned int *rlen) | |
3af9a47b | 5538 | { |
046b007d | 5539 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 5540 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
c9ffd2ea | 5541 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5542 | |
c9ffd2ea | 5543 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5544 | { |
c9ffd2ea | 5545 | bfd_mach_o_segment_command *seg; |
3af9a47b | 5546 | |
c9ffd2ea | 5547 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) |
3af9a47b NC |
5548 | continue; |
5549 | ||
c9ffd2ea | 5550 | seg = &cmd->command.segment; |
3af9a47b NC |
5551 | |
5552 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
5553 | { | |
5554 | unsigned long start = seg->fileoff; | |
5555 | unsigned long end = seg->fileoff + seg->filesize; | |
5556 | unsigned char *buf = bfd_malloc (1024); | |
5557 | unsigned long size = 1024; | |
5558 | ||
5559 | for (;;) | |
5560 | { | |
5561 | bfd_size_type nread = 0; | |
5562 | unsigned long offset; | |
5563 | int found_nonnull = 0; | |
5564 | ||
5565 | if (size > (end - start)) | |
5566 | size = (end - start); | |
5567 | ||
515ef31d NC |
5568 | buf = bfd_realloc_or_free (buf, size); |
5569 | if (buf == NULL) | |
5570 | return -1; | |
c2f09c75 TG |
5571 | |
5572 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
07d6d2b8 AM |
5573 | { |
5574 | free (buf); | |
5575 | return -1; | |
5576 | } | |
c2f09c75 | 5577 | |
3af9a47b | 5578 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 5579 | |
3af9a47b | 5580 | if (nread != size) |
515ef31d NC |
5581 | { |
5582 | free (buf); | |
5583 | return -1; | |
5584 | } | |
a95a4550 | 5585 | |
3af9a47b NC |
5586 | for (offset = 4; offset <= size; offset += 4) |
5587 | { | |
e84d6fca | 5588 | unsigned long val; |
3af9a47b | 5589 | |
e84d6fca | 5590 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
5591 | if (! found_nonnull) |
5592 | { | |
5593 | if (val != 0) | |
5594 | found_nonnull = 1; | |
5595 | } | |
5596 | else if (val == 0x0) | |
5597 | { | |
e84d6fca AM |
5598 | unsigned long bottom; |
5599 | unsigned long top; | |
3af9a47b | 5600 | |
e84d6fca AM |
5601 | bottom = seg->fileoff + seg->filesize - offset; |
5602 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
5603 | *rbuf = bfd_malloc (top - bottom); |
5604 | *rlen = top - bottom; | |
5605 | ||
5606 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 5607 | free (buf); |
3af9a47b NC |
5608 | return 0; |
5609 | } | |
5610 | } | |
5611 | ||
5612 | if (size == (end - start)) | |
5613 | break; | |
5614 | ||
5615 | size *= 2; | |
5616 | } | |
515ef31d NC |
5617 | |
5618 | free (buf); | |
3af9a47b NC |
5619 | } |
5620 | } | |
5621 | ||
5622 | return -1; | |
5623 | } | |
5624 | ||
5625 | char * | |
116c20d2 | 5626 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
5627 | { |
5628 | unsigned char *buf = NULL; | |
5629 | unsigned int len = 0; | |
452216ab | 5630 | int ret; |
3af9a47b NC |
5631 | |
5632 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
5633 | if (ret < 0) | |
5634 | return NULL; | |
5635 | ||
f075ee0c | 5636 | return (char *) buf; |
3af9a47b NC |
5637 | } |
5638 | ||
5639 | int | |
116c20d2 | 5640 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
5641 | { |
5642 | return 0; | |
5643 | } | |
5644 | ||
2ca7691a TG |
5645 | static bfd_mach_o_uuid_command * |
5646 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
5647 | { | |
09fe2662 | 5648 | bfd_mach_o_load_command *uuid_cmd = NULL; |
2ca7691a | 5649 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); |
09fe2662 | 5650 | if (ncmd != 1 || uuid_cmd == NULL) |
2ca7691a TG |
5651 | return FALSE; |
5652 | return &uuid_cmd->command.uuid; | |
5653 | } | |
5654 | ||
5655 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
5656 | ||
5657 | static bfd_boolean | |
5658 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) | |
5659 | { | |
5660 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
5661 | ||
5662 | BFD_ASSERT (abfd); | |
5663 | BFD_ASSERT (uuid_cmd); | |
5664 | ||
5665 | if (!bfd_check_format (abfd, bfd_object)) | |
5666 | return FALSE; | |
5667 | ||
5668 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
5669 | || bfd_mach_o_get_data (abfd) == NULL | |
5670 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
5671 | return FALSE; | |
5672 | ||
5673 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5674 | if (dsym_uuid_cmd == NULL) | |
5675 | return FALSE; | |
5676 | ||
5677 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
07d6d2b8 | 5678 | sizeof (uuid_cmd->uuid)) != 0) |
2ca7691a TG |
5679 | return FALSE; |
5680 | ||
5681 | return TRUE; | |
5682 | } | |
5683 | ||
5684 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
5685 | The caller is responsible for closing the returned BFD object and | |
5686 | its my_archive if the returned BFD is in a fat dSYM. */ | |
5687 | ||
5688 | static bfd * | |
5689 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
07d6d2b8 AM |
5690 | const bfd_mach_o_uuid_command *uuid_cmd, |
5691 | const bfd_arch_info_type *arch) | |
2ca7691a TG |
5692 | { |
5693 | bfd *base_dsym_bfd, *dsym_bfd; | |
5694 | ||
5695 | BFD_ASSERT (uuid_cmd); | |
5696 | ||
5697 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
5698 | if (base_dsym_bfd == NULL) | |
5699 | return NULL; | |
5700 | ||
5701 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
5702 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
5703 | return dsym_bfd; | |
5704 | ||
5705 | bfd_close (dsym_bfd); | |
5706 | if (base_dsym_bfd != dsym_bfd) | |
5707 | bfd_close (base_dsym_bfd); | |
5708 | ||
5709 | return NULL; | |
5710 | } | |
5711 | ||
5712 | /* Return a BFD created from a dSYM file for ABFD. | |
5713 | The caller is responsible for closing the returned BFD object, its | |
5714 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
5715 | ||
5716 | static bfd * | |
5717 | bfd_mach_o_follow_dsym (bfd *abfd) | |
5718 | { | |
5719 | char *dsym_filename; | |
5720 | bfd_mach_o_uuid_command *uuid_cmd; | |
5721 | bfd *dsym_bfd, *base_bfd = abfd; | |
5722 | const char *base_basename; | |
5723 | ||
5724 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
5725 | return NULL; | |
5726 | ||
b0cffb47 | 5727 | if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive)) |
2ca7691a TG |
5728 | base_bfd = abfd->my_archive; |
5729 | /* BFD may have been opened from a stream. */ | |
5730 | if (base_bfd->filename == NULL) | |
5731 | { | |
5732 | bfd_set_error (bfd_error_invalid_operation); | |
5733 | return NULL; | |
5734 | } | |
5735 | base_basename = lbasename (base_bfd->filename); | |
5736 | ||
5737 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5738 | if (uuid_cmd == NULL) | |
5739 | return NULL; | |
5740 | ||
5741 | /* TODO: We assume the DWARF file has the same as the binary's. | |
5742 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
5743 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
5744 | */ | |
5745 | dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename) | |
07d6d2b8 AM |
5746 | + strlen (dsym_subdir) + 1 |
5747 | + strlen (base_basename) + 1); | |
2ca7691a | 5748 | sprintf (dsym_filename, "%s%s/%s", |
07d6d2b8 | 5749 | base_bfd->filename, dsym_subdir, base_basename); |
2ca7691a TG |
5750 | |
5751 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
07d6d2b8 | 5752 | bfd_get_arch_info (abfd)); |
2ca7691a TG |
5753 | if (dsym_bfd == NULL) |
5754 | free (dsym_filename); | |
5755 | ||
5756 | return dsym_bfd; | |
5757 | } | |
5758 | ||
d9071b0c TG |
5759 | bfd_boolean |
5760 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
d9071b0c | 5761 | asymbol **symbols, |
fb167eb2 | 5762 | asection *section, |
d9071b0c TG |
5763 | bfd_vma offset, |
5764 | const char **filename_ptr, | |
5765 | const char **functionname_ptr, | |
fb167eb2 AM |
5766 | unsigned int *line_ptr, |
5767 | unsigned int *discriminator_ptr) | |
d9071b0c TG |
5768 | { |
5769 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 5770 | if (mdata == NULL) |
d9071b0c | 5771 | return FALSE; |
2ca7691a TG |
5772 | switch (mdata->header.filetype) |
5773 | { | |
5774 | case BFD_MACH_O_MH_OBJECT: | |
5775 | break; | |
5776 | case BFD_MACH_O_MH_EXECUTE: | |
5777 | case BFD_MACH_O_MH_DYLIB: | |
5778 | case BFD_MACH_O_MH_BUNDLE: | |
5779 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
5780 | if (mdata->dwarf2_find_line_info == NULL) | |
07d6d2b8 AM |
5781 | { |
5782 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
5783 | /* When we couldn't find dSYM for this binary, we look for | |
5784 | the debug information in the binary itself. In this way, | |
5785 | we won't try finding separated dSYM again because | |
5786 | mdata->dwarf2_find_line_info will be filled. */ | |
5787 | if (! mdata->dsym_bfd) | |
5788 | break; | |
5789 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
5790 | dwarf_debug_sections, symbols, | |
5791 | &mdata->dwarf2_find_line_info, | |
93ee1e36 | 5792 | FALSE)) |
07d6d2b8 AM |
5793 | return FALSE; |
5794 | } | |
2ca7691a TG |
5795 | break; |
5796 | default: | |
5797 | return FALSE; | |
5798 | } | |
fb167eb2 AM |
5799 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
5800 | filename_ptr, functionname_ptr, | |
5801 | line_ptr, discriminator_ptr, | |
5802 | dwarf_debug_sections, 0, | |
5803 | &mdata->dwarf2_find_line_info); | |
d9071b0c TG |
5804 | } |
5805 | ||
5806 | bfd_boolean | |
5807 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
5808 | { | |
5809 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5810 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
5811 | { |
5812 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
5813 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a | 5814 | if (mdata->dsym_bfd != NULL) |
07d6d2b8 AM |
5815 | { |
5816 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
cf466c2a NC |
5817 | #if 0 |
5818 | /* FIXME: PR 19435: This calculation to find the memory allocated by | |
5819 | bfd_mach_o_follow_dsym for the filename does not always end up | |
5820 | selecting the correct pointer. Unfortunately this problem is | |
5821 | very hard to reproduce on a non Mach-O native system, so until it | |
5822 | can be traced and fixed on such a system, this code will remain | |
5823 | commented out. This does mean that there will be a memory leak, | |
5824 | but it is small, and happens when we are closing down, so it | |
c244074c | 5825 | should not matter too much. */ |
07d6d2b8 AM |
5826 | char *dsym_filename = (char *)(fat_bfd |
5827 | ? fat_bfd->filename | |
5828 | : mdata->dsym_bfd->filename); | |
cf466c2a | 5829 | #endif |
07d6d2b8 AM |
5830 | bfd_close (mdata->dsym_bfd); |
5831 | mdata->dsym_bfd = NULL; | |
5832 | if (fat_bfd) | |
5833 | bfd_close (fat_bfd); | |
cf466c2a | 5834 | #if 0 |
07d6d2b8 | 5835 | free (dsym_filename); |
cf466c2a | 5836 | #endif |
07d6d2b8 | 5837 | } |
4434114c | 5838 | } |
dff55db0 | 5839 | |
d9071b0c TG |
5840 | return _bfd_generic_close_and_cleanup (abfd); |
5841 | } | |
5842 | ||
dff55db0 TG |
5843 | bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd) |
5844 | { | |
5845 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5846 | asection *asect; | |
5847 | free (mdata->dyn_reloc_cache); | |
5848 | mdata->dyn_reloc_cache = NULL; | |
5849 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
5850 | { | |
5851 | free (asect->relocation); | |
5852 | asect->relocation = NULL; | |
5853 | } | |
5854 | ||
5855 | return TRUE; | |
5856 | } | |
5857 | ||
68ffbac6 | 5858 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
92bc0e80 TG |
5859 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
5860 | ||
bcb51645 | 5861 | #define bfd_mach_o_canonicalize_one_reloc NULL |
92bc0e80 | 5862 | #define bfd_mach_o_swap_reloc_out NULL |
b32e07d7 | 5863 | #define bfd_mach_o_print_thread NULL |
a4551119 | 5864 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 5865 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 5866 | |
07d6d2b8 AM |
5867 | #define TARGET_NAME mach_o_be_vec |
5868 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 5869 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 5870 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
5871 | #define TARGET_BIG_ENDIAN 1 |
5872 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 5873 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
5874 | #include "mach-o-target.c" |
5875 | ||
5876 | #undef TARGET_NAME | |
5877 | #undef TARGET_STRING | |
42fa0891 | 5878 | #undef TARGET_ARCHITECTURE |
4384b284 | 5879 | #undef TARGET_PAGESIZE |
3af9a47b NC |
5880 | #undef TARGET_BIG_ENDIAN |
5881 | #undef TARGET_ARCHIVE | |
b93a1992 | 5882 | #undef TARGET_PRIORITY |
3af9a47b | 5883 | |
07d6d2b8 AM |
5884 | #define TARGET_NAME mach_o_le_vec |
5885 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 5886 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 5887 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
5888 | #define TARGET_BIG_ENDIAN 0 |
5889 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 5890 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
5891 | |
5892 | #include "mach-o-target.c" | |
5893 | ||
5894 | #undef TARGET_NAME | |
5895 | #undef TARGET_STRING | |
42fa0891 | 5896 | #undef TARGET_ARCHITECTURE |
4384b284 | 5897 | #undef TARGET_PAGESIZE |
3af9a47b NC |
5898 | #undef TARGET_BIG_ENDIAN |
5899 | #undef TARGET_ARCHIVE | |
b93a1992 | 5900 | #undef TARGET_PRIORITY |
3af9a47b | 5901 | |
8f95b6e4 | 5902 | /* Not yet handled: creating an archive. */ |
07d6d2b8 | 5903 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
8f95b6e4 | 5904 | |
d00dd7dc | 5905 | #define bfd_mach_o_close_and_cleanup _bfd_bool_bfd_true |
47daa70f | 5906 | |
8f95b6e4 | 5907 | /* Not used. */ |
07d6d2b8 | 5908 | #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt |
47daa70f TG |
5909 | #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file |
5910 | #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p | |
8f95b6e4 | 5911 | |
07d6d2b8 AM |
5912 | #define TARGET_NAME mach_o_fat_vec |
5913 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 5914 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 5915 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
5916 | #define TARGET_BIG_ENDIAN 1 |
5917 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 5918 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
5919 | |
5920 | #include "mach-o-target.c" | |
5921 | ||
5922 | #undef TARGET_NAME | |
5923 | #undef TARGET_STRING | |
42fa0891 | 5924 | #undef TARGET_ARCHITECTURE |
4384b284 | 5925 | #undef TARGET_PAGESIZE |
3af9a47b NC |
5926 | #undef TARGET_BIG_ENDIAN |
5927 | #undef TARGET_ARCHIVE | |
b93a1992 | 5928 | #undef TARGET_PRIORITY |