Commit | Line | Data |
---|---|---|
3af9a47b | 1 | /* Mach-O support for BFD. |
4b95cf5c | 2 | Copyright (C) 1999-2014 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 TG |
37 | #define FILE_ALIGN(off, algn) \ |
38 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn))) | |
39 | ||
c2f09c75 | 40 | unsigned int |
1e8a024a TG |
41 | bfd_mach_o_version (bfd *abfd) |
42 | { | |
43 | bfd_mach_o_data_struct *mdata = NULL; | |
44 | ||
45 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
046b007d | 46 | mdata = bfd_mach_o_get_data (abfd); |
1e8a024a TG |
47 | |
48 | return mdata->header.version; | |
49 | } | |
50 | ||
b34976b6 | 51 | bfd_boolean |
116c20d2 | 52 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
53 | { |
54 | if (abfd == NULL || abfd->xvec == NULL) | |
154a1ee5 | 55 | return FALSE; |
3af9a47b | 56 | |
154a1ee5 TG |
57 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
58 | return FALSE; | |
3af9a47b | 59 | |
046b007d | 60 | if (bfd_mach_o_get_data (abfd) == NULL) |
154a1ee5 TG |
61 | return FALSE; |
62 | return TRUE; | |
63 | } | |
64 | ||
c2f09c75 TG |
65 | static INLINE bfd_boolean |
66 | mach_o_wide_p (bfd_mach_o_header *header) | |
67 | { | |
68 | switch (header->version) | |
69 | { | |
70 | case 1: | |
71 | return FALSE; | |
72 | case 2: | |
73 | return TRUE; | |
74 | default: | |
75 | BFD_FAIL (); | |
76 | return FALSE; | |
77 | } | |
78 | } | |
79 | ||
80 | static INLINE bfd_boolean | |
81 | bfd_mach_o_wide_p (bfd *abfd) | |
82 | { | |
046b007d | 83 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
c2f09c75 | 84 | } |
68ffbac6 | 85 | |
154a1ee5 TG |
86 | /* Tables to translate well known Mach-O segment/section names to bfd |
87 | names. Use of canonical names (such as .text or .debug_frame) is required | |
88 | by gdb. */ | |
89 | ||
a4551119 TG |
90 | /* __TEXT Segment. */ |
91 | static const mach_o_section_name_xlat text_section_names_xlat[] = | |
154a1ee5 | 92 | { |
68ffbac6 | 93 | { ".text", "__text", |
a4551119 TG |
94 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, |
95 | BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0}, | |
96 | { ".const", "__const", | |
97 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
98 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
99 | { ".static_const", "__static_const", | |
100 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
101 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
102 | { ".cstring", "__cstring", | |
103 | SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS, | |
104 | BFD_MACH_O_S_CSTRING_LITERALS, | |
105 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
106 | { ".literal4", "__literal4", | |
107 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS, | |
108 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
109 | { ".literal8", "__literal8", | |
110 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS, | |
111 | BFD_MACH_O_S_ATTR_NONE, 3}, | |
112 | { ".literal16", "__literal16", | |
113 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS, | |
114 | BFD_MACH_O_S_ATTR_NONE, 4}, | |
115 | { ".constructor", "__constructor", | |
116 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
117 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
118 | { ".destructor", "__destructor", | |
119 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
120 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
121 | { ".eh_frame", "__eh_frame", | |
632039e0 | 122 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED, |
a4551119 TG |
123 | BFD_MACH_O_S_ATTR_LIVE_SUPPORT |
124 | | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS | |
632039e0 | 125 | | BFD_MACH_O_S_ATTR_NO_TOC, 2}, |
a4551119 | 126 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
127 | }; |
128 | ||
a4551119 TG |
129 | /* __DATA Segment. */ |
130 | static const mach_o_section_name_xlat data_section_names_xlat[] = | |
154a1ee5 | 131 | { |
a4551119 TG |
132 | { ".data", "__data", |
133 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
134 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
135 | { ".bss", "__bss", | |
136 | SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL, | |
137 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
138 | { ".const_data", "__const", | |
139 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
140 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
141 | { ".static_data", "__static_data", | |
142 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
143 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
144 | { ".mod_init_func", "__mod_init_func", | |
145 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS, | |
146 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
147 | { ".mod_term_func", "__mod_term_func", | |
148 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS, | |
149 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
150 | { ".dyld", "__dyld", | |
151 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
152 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
153 | { ".cfstring", "__cfstring", | |
154 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
155 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
156 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
157 | }; |
158 | ||
a4551119 TG |
159 | /* __DWARF Segment. */ |
160 | static const mach_o_section_name_xlat dwarf_section_names_xlat[] = | |
154a1ee5 | 161 | { |
a4551119 TG |
162 | { ".debug_frame", "__debug_frame", |
163 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
164 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
165 | { ".debug_info", "__debug_info", | |
166 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
167 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
168 | { ".debug_abbrev", "__debug_abbrev", | |
169 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
170 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
171 | { ".debug_aranges", "__debug_aranges", | |
172 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
173 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
174 | { ".debug_macinfo", "__debug_macinfo", | |
175 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
176 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
177 | { ".debug_line", "__debug_line", | |
178 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
179 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
180 | { ".debug_loc", "__debug_loc", | |
181 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
182 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
183 | { ".debug_pubnames", "__debug_pubnames", | |
184 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
185 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
186 | { ".debug_pubtypes", "__debug_pubtypes", | |
187 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
188 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
189 | { ".debug_str", "__debug_str", | |
190 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
191 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
192 | { ".debug_ranges", "__debug_ranges", | |
193 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
194 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
195 | { ".debug_macro", "__debug_macro", | |
196 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
197 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
671a6cbe NC |
198 | { ".debug_gdb_scripts", "__debug_gdb_scri", |
199 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
200 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
a4551119 | 201 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
202 | }; |
203 | ||
a4551119 TG |
204 | /* __OBJC Segment. */ |
205 | static const mach_o_section_name_xlat objc_section_names_xlat[] = | |
206 | { | |
207 | { ".objc_class", "__class", | |
208 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
209 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
210 | { ".objc_meta_class", "__meta_class", | |
211 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
212 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
213 | { ".objc_cat_cls_meth", "__cat_cls_meth", | |
214 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
215 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
216 | { ".objc_cat_inst_meth", "__cat_inst_meth", | |
217 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
218 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
219 | { ".objc_protocol", "__protocol", | |
220 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
221 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
222 | { ".objc_string_object", "__string_object", | |
223 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
224 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
225 | { ".objc_cls_meth", "__cls_meth", | |
226 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
227 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
228 | { ".objc_inst_meth", "__inst_meth", | |
229 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
230 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
231 | { ".objc_cls_refs", "__cls_refs", | |
232 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
233 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
234 | { ".objc_message_refs", "__message_refs", | |
235 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
236 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
237 | { ".objc_symbols", "__symbols", | |
238 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
239 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
240 | { ".objc_category", "__category", | |
241 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
242 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
243 | { ".objc_class_vars", "__class_vars", | |
244 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
245 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
246 | { ".objc_instance_vars", "__instance_vars", | |
247 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
248 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
249 | { ".objc_module_info", "__module_info", | |
250 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
251 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
252 | { ".objc_selector_strs", "__selector_strs", | |
253 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS, | |
254 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
255 | { ".objc_image_info", "__image_info", | |
256 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
257 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
258 | { ".objc_selector_fixup", "__sel_fixup", | |
259 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
260 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
261 | /* Objc V1 */ | |
262 | { ".objc1_class_ext", "__class_ext", | |
263 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
264 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
265 | { ".objc1_property_list", "__property", | |
266 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
267 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
268 | { ".objc1_protocol_ext", "__protocol_ext", | |
269 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
270 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
271 | { NULL, NULL, 0, 0, 0, 0} | |
272 | }; | |
5a5cbf72 | 273 | |
a4551119 | 274 | static const mach_o_segment_name_xlat segsec_names_xlat[] = |
154a1ee5 | 275 | { |
154a1ee5 TG |
276 | { "__TEXT", text_section_names_xlat }, |
277 | { "__DATA", data_section_names_xlat }, | |
5a5cbf72 | 278 | { "__DWARF", dwarf_section_names_xlat }, |
a4551119 | 279 | { "__OBJC", objc_section_names_xlat }, |
154a1ee5 TG |
280 | { NULL, NULL } |
281 | }; | |
282 | ||
2ca7691a TG |
283 | static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF"; |
284 | ||
a4551119 TG |
285 | /* For both cases bfd-name => mach-o name and vice versa, the specific target |
286 | is checked before the generic. This allows a target (e.g. ppc for cstring) | |
287 | to override the generic definition with a more specific one. */ | |
154a1ee5 | 288 | |
a4551119 TG |
289 | /* Fetch the translation from a Mach-O section designation (segment, section) |
290 | as a bfd short name, if one exists. Otherwise return NULL. | |
68ffbac6 | 291 | |
a4551119 TG |
292 | Allow the segment and section names to be unterminated 16 byte arrays. */ |
293 | ||
294 | const mach_o_section_name_xlat * | |
295 | bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname, | |
296 | const char *sectname) | |
154a1ee5 TG |
297 | { |
298 | const struct mach_o_segment_name_xlat *seg; | |
a4551119 TG |
299 | const mach_o_section_name_xlat *sec; |
300 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
154a1ee5 | 301 | |
a4551119 TG |
302 | /* First try any target-specific translations defined... */ |
303 | if (bed->segsec_names_xlat) | |
304 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
305 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
306 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
307 | if (strncmp (sec->mach_o_name, sectname, | |
308 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
309 | return sec; | |
8462aec7 | 310 | |
a4551119 | 311 | /* ... and then the Mach-O generic ones. */ |
154a1ee5 | 312 | for (seg = segsec_names_xlat; seg->segname; seg++) |
a4551119 TG |
313 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) |
314 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
315 | if (strncmp (sec->mach_o_name, sectname, | |
316 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
317 | return sec; | |
154a1ee5 | 318 | |
68ffbac6 | 319 | return NULL; |
53d58d96 TG |
320 | } |
321 | ||
a4551119 | 322 | /* If the bfd_name for this section is a 'canonical' form for which we |
68ffbac6 | 323 | know the Mach-O data, return the segment name and the data for the |
a4551119 | 324 | Mach-O equivalent. Otherwise return NULL. */ |
7ba695a9 | 325 | |
a4551119 TG |
326 | const mach_o_section_name_xlat * |
327 | bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name, | |
328 | const char **segname) | |
53d58d96 | 329 | { |
a4551119 TG |
330 | const struct mach_o_segment_name_xlat *seg; |
331 | const mach_o_section_name_xlat *sec; | |
332 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
333 | *segname = NULL; | |
334 | ||
335 | if (bfd_name[0] != '.') | |
336 | return NULL; | |
337 | ||
338 | /* First try any target-specific translations defined... */ | |
339 | if (bed->segsec_names_xlat) | |
340 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
341 | for (sec = seg->sections; sec->bfd_name; sec++) | |
342 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
343 | { | |
344 | *segname = seg->segname; | |
345 | return sec; | |
346 | } | |
347 | ||
348 | /* ... and then the Mach-O generic ones. */ | |
349 | for (seg = segsec_names_xlat; seg->segname; seg++) | |
350 | for (sec = seg->sections; sec->bfd_name; sec++) | |
351 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
352 | { | |
353 | *segname = seg->segname; | |
354 | return sec; | |
355 | } | |
356 | ||
68ffbac6 | 357 | return NULL; |
a4551119 TG |
358 | } |
359 | ||
360 | /* Convert Mach-O section name to BFD. | |
361 | ||
68ffbac6 | 362 | Try to use standard/canonical names, for which we have tables including |
a4551119 TG |
363 | default flag settings - which are returned. Otherwise forge a new name |
364 | in the form "<segmentname>.<sectionname>" this will be prefixed with | |
365 | LC_SEGMENT. if the segment name does not begin with an underscore. | |
366 | ||
367 | SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL- | |
368 | terminated if the name length is exactly 16 bytes - but must be if the name | |
369 | length is less than 16 characters). */ | |
370 | ||
371 | void | |
372 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname, | |
373 | const char *secname, const char **name, | |
374 | flagword *flags) | |
375 | { | |
376 | const mach_o_section_name_xlat *xlat; | |
53d58d96 TG |
377 | char *res; |
378 | unsigned int len; | |
379 | const char *pfx = ""; | |
380 | ||
a4551119 TG |
381 | *name = NULL; |
382 | *flags = SEC_NO_FLAGS; | |
53d58d96 | 383 | |
68ffbac6 | 384 | /* First search for a canonical name... |
a4551119 TG |
385 | xlat will be non-null if there is an entry for segname, secname. */ |
386 | xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname); | |
387 | if (xlat) | |
388 | { | |
389 | len = strlen (xlat->bfd_name); | |
390 | res = bfd_alloc (abfd, len+1); | |
391 | if (res == NULL) | |
392 | return; | |
393 | memcpy (res, xlat->bfd_name, len+1); | |
394 | *name = res; | |
395 | *flags = xlat->bfd_flags; | |
396 | return; | |
397 | } | |
398 | ||
399 | /* ... else we make up a bfd name from the segment concatenated with the | |
400 | section. */ | |
154a1ee5 | 401 | |
7ba695a9 | 402 | len = 16 + 1 + 16 + 1; |
154a1ee5 | 403 | |
c2f09c75 TG |
404 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
405 | with an underscore. */ | |
f1bde64c | 406 | if (segname[0] != '_') |
c2f09c75 TG |
407 | { |
408 | static const char seg_pfx[] = "LC_SEGMENT."; | |
409 | ||
410 | pfx = seg_pfx; | |
411 | len += sizeof (seg_pfx) - 1; | |
412 | } | |
413 | ||
154a1ee5 TG |
414 | res = bfd_alloc (abfd, len); |
415 | if (res == NULL) | |
8462aec7 | 416 | return; |
a4551119 | 417 | snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname); |
8462aec7 | 418 | *name = res; |
154a1ee5 TG |
419 | } |
420 | ||
a4551119 | 421 | /* Convert a bfd section name to a Mach-O segment + section name. |
154a1ee5 | 422 | |
a4551119 TG |
423 | If the name is a canonical one for which we have a Darwin match |
424 | return the translation table - which contains defaults for flags, | |
425 | type, attribute and default alignment data. | |
426 | ||
68ffbac6 | 427 | Otherwise, expand the bfd_name (assumed to be in the form |
a4551119 TG |
428 | "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */ |
429 | ||
430 | static const mach_o_section_name_xlat * | |
154a1ee5 TG |
431 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
432 | asection *sect, | |
433 | bfd_mach_o_section *section) | |
434 | { | |
a4551119 | 435 | const mach_o_section_name_xlat *xlat; |
154a1ee5 | 436 | const char *name = bfd_get_section_name (abfd, sect); |
a4551119 | 437 | const char *segname; |
154a1ee5 TG |
438 | const char *dot; |
439 | unsigned int len; | |
440 | unsigned int seglen; | |
441 | unsigned int seclen; | |
442 | ||
a4551119 TG |
443 | memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1); |
444 | memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1); | |
445 | ||
446 | /* See if is a canonical name ... */ | |
447 | xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname); | |
448 | if (xlat) | |
449 | { | |
450 | strcpy (section->segname, segname); | |
451 | strcpy (section->sectname, xlat->mach_o_name); | |
452 | return xlat; | |
453 | } | |
154a1ee5 | 454 | |
a4551119 TG |
455 | /* .. else we convert our constructed one back to Mach-O. |
456 | Strip LC_SEGMENT. prefix, if present. */ | |
154a1ee5 TG |
457 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
458 | name += 11; | |
459 | ||
460 | /* Find a dot. */ | |
461 | dot = strchr (name, '.'); | |
462 | len = strlen (name); | |
463 | ||
464 | /* Try to split name into segment and section names. */ | |
465 | if (dot && dot != name) | |
466 | { | |
467 | seglen = dot - name; | |
468 | seclen = len - (dot + 1 - name); | |
469 | ||
ca148c5a TG |
470 | if (seglen <= BFD_MACH_O_SEGNAME_SIZE |
471 | && seclen <= BFD_MACH_O_SECTNAME_SIZE) | |
154a1ee5 TG |
472 | { |
473 | memcpy (section->segname, name, seglen); | |
474 | section->segname[seglen] = 0; | |
475 | memcpy (section->sectname, dot + 1, seclen); | |
476 | section->sectname[seclen] = 0; | |
a4551119 | 477 | return NULL; |
154a1ee5 TG |
478 | } |
479 | } | |
480 | ||
a4551119 TG |
481 | /* The segment and section names are both missing - don't make them |
482 | into dots. */ | |
483 | if (dot && dot == name) | |
484 | return NULL; | |
485 | ||
486 | /* Just duplicate the name into both segment and section. */ | |
154a1ee5 TG |
487 | if (len > 16) |
488 | len = 16; | |
489 | memcpy (section->segname, name, len); | |
490 | section->segname[len] = 0; | |
491 | memcpy (section->sectname, name, len); | |
492 | section->sectname[len] = 0; | |
a4551119 | 493 | return NULL; |
3af9a47b NC |
494 | } |
495 | ||
b2b62060 TG |
496 | /* Return the size of an entry for section SEC. |
497 | Must be called only for symbol pointer section and symbol stubs | |
498 | sections. */ | |
499 | ||
c5012cd8 | 500 | unsigned int |
b2b62060 TG |
501 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
502 | { | |
503 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
504 | { | |
505 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
506 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
507 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
508 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
509 | return sec->reserved2; | |
510 | default: | |
511 | BFD_FAIL (); | |
512 | return 0; | |
513 | } | |
514 | } | |
515 | ||
516 | /* Return the number of indirect symbols for a section. | |
517 | Must be called only for symbol pointer section and symbol stubs | |
518 | sections. */ | |
519 | ||
c5012cd8 | 520 | unsigned int |
b2b62060 TG |
521 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
522 | { | |
523 | unsigned int elsz; | |
524 | ||
525 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); | |
526 | if (elsz == 0) | |
527 | return 0; | |
528 | else | |
529 | return sec->size / elsz; | |
530 | } | |
531 | ||
532 | ||
3af9a47b NC |
533 | /* Copy any private info we understand from the input symbol |
534 | to the output symbol. */ | |
535 | ||
154a1ee5 | 536 | bfd_boolean |
116c20d2 | 537 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
b22161d6 | 538 | asymbol *isymbol, |
116c20d2 | 539 | bfd *obfd ATTRIBUTE_UNUSED, |
b22161d6 IS |
540 | asymbol *osymbol) |
541 | { | |
542 | bfd_mach_o_asymbol *os, *is; | |
543 | os = (bfd_mach_o_asymbol *)osymbol; | |
544 | is = (bfd_mach_o_asymbol *)isymbol; | |
545 | os->n_type = is->n_type; | |
546 | os->n_sect = is->n_sect; | |
547 | os->n_desc = is->n_desc; | |
548 | os->symbol.udata.i = is->symbol.udata.i; | |
b34976b6 | 549 | return TRUE; |
3af9a47b NC |
550 | } |
551 | ||
552 | /* Copy any private info we understand from the input section | |
553 | to the output section. */ | |
554 | ||
154a1ee5 | 555 | bfd_boolean |
116c20d2 | 556 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, |
a4551119 | 557 | asection *isection, |
116c20d2 | 558 | bfd *obfd ATTRIBUTE_UNUSED, |
a4551119 TG |
559 | asection *osection) |
560 | { | |
561 | if (osection->used_by_bfd == NULL) | |
562 | osection->used_by_bfd = isection->used_by_bfd; | |
68ffbac6 | 563 | else |
a4551119 | 564 | if (isection->used_by_bfd != NULL) |
68ffbac6 | 565 | memcpy (osection->used_by_bfd, isection->used_by_bfd, |
a4551119 | 566 | sizeof (bfd_mach_o_section)); |
68ffbac6 | 567 | |
a4551119 TG |
568 | if (osection->used_by_bfd != NULL) |
569 | ((bfd_mach_o_section *)osection->used_by_bfd)->bfdsection = osection; | |
570 | ||
b34976b6 | 571 | return TRUE; |
3af9a47b NC |
572 | } |
573 | ||
574 | /* Copy any private info we understand from the input bfd | |
575 | to the output bfd. */ | |
576 | ||
154a1ee5 | 577 | bfd_boolean |
116c20d2 | 578 | bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 579 | { |
154a1ee5 TG |
580 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
581 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
582 | return TRUE; | |
583 | ||
3af9a47b NC |
584 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
585 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
586 | ||
154a1ee5 TG |
587 | /* FIXME: copy commands. */ |
588 | ||
b34976b6 | 589 | return TRUE; |
3af9a47b NC |
590 | } |
591 | ||
0c9ef0f0 TG |
592 | /* This allows us to set up to 32 bits of flags (unless we invent some |
593 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
594 | without error checking - just overwrite. */ | |
68ffbac6 | 595 | |
0c9ef0f0 TG |
596 | bfd_boolean |
597 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) | |
598 | { | |
599 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
600 | ||
601 | if (!mdata) | |
602 | return FALSE; | |
603 | ||
604 | mdata->header.flags = flags; | |
605 | return TRUE; | |
606 | } | |
607 | ||
046b007d | 608 | /* Count the total number of symbols. */ |
154a1ee5 | 609 | |
3af9a47b | 610 | static long |
116c20d2 | 611 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 612 | { |
046b007d | 613 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 614 | |
046b007d TG |
615 | if (mdata->symtab == NULL) |
616 | return 0; | |
617 | return mdata->symtab->nsyms; | |
3af9a47b NC |
618 | } |
619 | ||
154a1ee5 | 620 | long |
116c20d2 | 621 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
622 | { |
623 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
624 | ||
3af9a47b NC |
625 | return ((nsyms + 1) * sizeof (asymbol *)); |
626 | } | |
627 | ||
154a1ee5 | 628 | long |
116c20d2 | 629 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 630 | { |
046b007d | 631 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 632 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
633 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
634 | unsigned long j; | |
3af9a47b NC |
635 | |
636 | if (nsyms < 0) | |
637 | return nsyms; | |
638 | ||
092d27ff TG |
639 | if (nsyms == 0) |
640 | { | |
641 | /* Do not try to read symbols if there are none. */ | |
642 | alocation[0] = NULL; | |
643 | return 0; | |
644 | } | |
645 | ||
afbb9e17 | 646 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 647 | { |
afbb9e17 TG |
648 | (*_bfd_error_handler) |
649 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); | |
046b007d TG |
650 | return 0; |
651 | } | |
3af9a47b | 652 | |
046b007d | 653 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 654 | |
046b007d TG |
655 | for (j = 0; j < sym->nsyms; j++) |
656 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 657 | |
046b007d | 658 | alocation[j] = NULL; |
a95a4550 | 659 | |
3af9a47b NC |
660 | return nsyms; |
661 | } | |
662 | ||
aeefa1c9 TG |
663 | /* Create synthetic symbols for indirect symbols. */ |
664 | ||
b2b62060 TG |
665 | long |
666 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
667 | long symcount ATTRIBUTE_UNUSED, | |
668 | asymbol **syms ATTRIBUTE_UNUSED, | |
669 | long dynsymcount ATTRIBUTE_UNUSED, | |
670 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
671 | asymbol **ret) | |
672 | { | |
673 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
674 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
675 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
676 | asymbol *s; | |
677 | unsigned long count, i, j, n; | |
678 | size_t size; | |
679 | char *names; | |
680 | char *nul_name; | |
681 | ||
682 | *ret = NULL; | |
683 | ||
aeefa1c9 | 684 | /* Stop now if no symbols or no indirect symbols. */ |
b2b62060 TG |
685 | if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL) |
686 | return 0; | |
687 | ||
688 | if (dysymtab->nindirectsyms == 0) | |
689 | return 0; | |
690 | ||
aeefa1c9 TG |
691 | /* We need to allocate a bfd symbol for every indirect symbol and to |
692 | allocate the memory for its name. */ | |
b2b62060 TG |
693 | count = dysymtab->nindirectsyms; |
694 | size = count * sizeof (asymbol) + 1; | |
695 | ||
696 | for (j = 0; j < count; j++) | |
697 | { | |
698 | unsigned int isym = dysymtab->indirect_syms[j]; | |
aeefa1c9 TG |
699 | |
700 | /* Some indirect symbols are anonymous. */ | |
b2b62060 TG |
701 | if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name) |
702 | size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub"); | |
703 | } | |
704 | ||
705 | s = *ret = (asymbol *) bfd_malloc (size); | |
706 | if (s == NULL) | |
707 | return -1; | |
708 | names = (char *) (s + count); | |
709 | nul_name = names; | |
710 | *names++ = 0; | |
68ffbac6 | 711 | |
b2b62060 TG |
712 | n = 0; |
713 | for (i = 0; i < mdata->nsects; i++) | |
714 | { | |
715 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 716 | unsigned int first, last; |
b2b62060 TG |
717 | bfd_vma addr; |
718 | bfd_vma entry_size; | |
68ffbac6 | 719 | |
b2b62060 TG |
720 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
721 | { | |
722 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
723 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
724 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
aeefa1c9 | 725 | /* Only these sections have indirect symbols. */ |
b2b62060 TG |
726 | first = sec->reserved1; |
727 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
728 | addr = sec->addr; | |
729 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
730 | for (j = first; j < last; j++) | |
731 | { | |
732 | unsigned int isym = dysymtab->indirect_syms[j]; | |
733 | ||
734 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; | |
735 | s->section = sec->bfdsection; | |
736 | s->value = addr - sec->addr; | |
737 | s->udata.p = NULL; | |
68ffbac6 | 738 | |
b2b62060 TG |
739 | if (isym < symtab->nsyms |
740 | && symtab->symbols[isym].symbol.name) | |
741 | { | |
742 | const char *sym = symtab->symbols[isym].symbol.name; | |
743 | size_t len; | |
744 | ||
745 | s->name = names; | |
746 | len = strlen (sym); | |
747 | memcpy (names, sym, len); | |
748 | names += len; | |
749 | memcpy (names, "$stub", sizeof ("$stub")); | |
750 | names += sizeof ("$stub"); | |
751 | } | |
752 | else | |
753 | s->name = nul_name; | |
754 | ||
755 | addr += entry_size; | |
756 | s++; | |
757 | n++; | |
758 | } | |
759 | break; | |
760 | default: | |
761 | break; | |
762 | } | |
763 | } | |
764 | ||
765 | return n; | |
766 | } | |
767 | ||
154a1ee5 | 768 | void |
116c20d2 NC |
769 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
770 | asymbol *symbol, | |
771 | symbol_info *ret) | |
3af9a47b NC |
772 | { |
773 | bfd_symbol_info (symbol, ret); | |
774 | } | |
775 | ||
154a1ee5 | 776 | void |
116c20d2 | 777 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 778 | void * afile, |
116c20d2 NC |
779 | asymbol *symbol, |
780 | bfd_print_symbol_type how) | |
3af9a47b NC |
781 | { |
782 | FILE *file = (FILE *) afile; | |
15e1c58a | 783 | const char *name; |
92bc0e80 | 784 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
785 | |
786 | switch (how) | |
787 | { | |
788 | case bfd_print_symbol_name: | |
789 | fprintf (file, "%s", symbol->name); | |
790 | break; | |
791 | default: | |
91d6fa6a | 792 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
793 | if (asym->n_type & BFD_MACH_O_N_STAB) |
794 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 795 | else |
92bc0e80 | 796 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
797 | { |
798 | case BFD_MACH_O_N_UNDF: | |
e0ce1005 TG |
799 | if (symbol->value == 0) |
800 | name = "UND"; | |
801 | else | |
802 | name = "COM"; | |
15e1c58a TG |
803 | break; |
804 | case BFD_MACH_O_N_ABS: | |
805 | name = "ABS"; | |
806 | break; | |
807 | case BFD_MACH_O_N_INDR: | |
808 | name = "INDR"; | |
809 | break; | |
810 | case BFD_MACH_O_N_PBUD: | |
811 | name = "PBUD"; | |
812 | break; | |
813 | case BFD_MACH_O_N_SECT: | |
814 | name = "SECT"; | |
815 | break; | |
816 | default: | |
817 | name = "???"; | |
818 | break; | |
819 | } | |
820 | if (name == NULL) | |
821 | name = ""; | |
92bc0e80 TG |
822 | fprintf (file, " %02x %-6s %02x %04x", |
823 | asym->n_type, name, asym->n_sect, asym->n_desc); | |
824 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 | |
825 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 826 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 827 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
828 | } |
829 | } | |
830 | ||
831 | static void | |
116c20d2 | 832 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 833 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
834 | enum bfd_architecture *type, |
835 | unsigned long *subtype) | |
3af9a47b NC |
836 | { |
837 | *subtype = bfd_arch_unknown; | |
838 | ||
839 | switch (mtype) | |
840 | { | |
0b2de107 TG |
841 | case BFD_MACH_O_CPU_TYPE_VAX: |
842 | *type = bfd_arch_vax; | |
843 | break; | |
844 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
845 | *type = bfd_arch_m68k; | |
846 | break; | |
1e8a024a TG |
847 | case BFD_MACH_O_CPU_TYPE_I386: |
848 | *type = bfd_arch_i386; | |
849 | *subtype = bfd_mach_i386_i386; | |
850 | break; | |
851 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
852 | *type = bfd_arch_i386; | |
853 | *subtype = bfd_mach_x86_64; | |
854 | break; | |
0b2de107 TG |
855 | case BFD_MACH_O_CPU_TYPE_MIPS: |
856 | *type = bfd_arch_mips; | |
857 | break; | |
858 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
859 | *type = bfd_arch_m98k; | |
860 | break; | |
861 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
862 | *type = bfd_arch_hppa; | |
863 | break; | |
864 | case BFD_MACH_O_CPU_TYPE_ARM: | |
865 | *type = bfd_arch_arm; | |
866 | switch (msubtype) | |
867 | { | |
868 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
869 | *subtype = bfd_mach_arm_4T; | |
870 | break; | |
871 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
872 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
873 | break; | |
874 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
875 | *subtype = bfd_mach_arm_5TE; | |
876 | break; | |
877 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
878 | *subtype = bfd_mach_arm_XScale; | |
879 | break; | |
880 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
881 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
882 | break; | |
883 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
884 | default: | |
885 | break; | |
886 | } | |
887 | break; | |
888 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
889 | *type = bfd_arch_m88k; | |
890 | break; | |
1e8a024a TG |
891 | case BFD_MACH_O_CPU_TYPE_SPARC: |
892 | *type = bfd_arch_sparc; | |
893 | *subtype = bfd_mach_sparc; | |
894 | break; | |
0b2de107 TG |
895 | case BFD_MACH_O_CPU_TYPE_I860: |
896 | *type = bfd_arch_i860; | |
897 | break; | |
898 | case BFD_MACH_O_CPU_TYPE_ALPHA: | |
899 | *type = bfd_arch_alpha; | |
900 | break; | |
1e8a024a TG |
901 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
902 | *type = bfd_arch_powerpc; | |
c2f09c75 | 903 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
904 | break; |
905 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
906 | *type = bfd_arch_powerpc; | |
c2f09c75 | 907 | *subtype = bfd_mach_ppc64; |
1e8a024a | 908 | break; |
d8028530 TG |
909 | case BFD_MACH_O_CPU_TYPE_ARM64: |
910 | *type = bfd_arch_aarch64; | |
911 | *subtype = bfd_mach_aarch64; | |
912 | break; | |
3af9a47b | 913 | default: |
1e8a024a TG |
914 | *type = bfd_arch_unknown; |
915 | break; | |
3af9a47b NC |
916 | } |
917 | } | |
a95a4550 | 918 | |
154a1ee5 | 919 | static bfd_boolean |
116c20d2 NC |
920 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
921 | { | |
46d1c23b | 922 | struct mach_o_header_external raw; |
1e8a024a TG |
923 | unsigned int size; |
924 | ||
c2f09c75 | 925 | size = mach_o_wide_p (header) ? |
154a1ee5 | 926 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 927 | |
46d1c23b TG |
928 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
929 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
930 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
931 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
932 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
933 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
934 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 935 | |
c2f09c75 | 936 | if (mach_o_wide_p (header)) |
46d1c23b | 937 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 938 | |
c2f09c75 | 939 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 940 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 941 | return FALSE; |
116c20d2 | 942 | |
154a1ee5 | 943 | return TRUE; |
116c20d2 NC |
944 | } |
945 | ||
946 | static int | |
ab273af8 | 947 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
948 | { |
949 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
950 | unsigned int i; | |
46d1c23b | 951 | struct mach_o_thread_command_external raw; |
92bc0e80 | 952 | unsigned int offset; |
116c20d2 NC |
953 | |
954 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
955 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
956 | ||
957 | offset = 8; | |
116c20d2 NC |
958 | for (i = 0; i < cmd->nflavours; i++) |
959 | { | |
960 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b TG |
961 | BFD_ASSERT (cmd->flavours[i].offset == |
962 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); | |
116c20d2 | 963 | |
46d1c23b TG |
964 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
965 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 966 | |
c2f09c75 | 967 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 968 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
116c20d2 NC |
969 | return -1; |
970 | ||
46d1c23b | 971 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
972 | } |
973 | ||
974 | return 0; | |
975 | } | |
976 | ||
92bc0e80 TG |
977 | long |
978 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
979 | asection *asect) | |
980 | { | |
981 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
982 | } | |
983 | ||
19765f52 IS |
984 | /* In addition to the need to byte-swap the symbol number, the bit positions |
985 | of the fields in the relocation information vary per target endian-ness. */ | |
986 | ||
987 | static void | |
988 | bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel, | |
989 | unsigned char *fields) | |
990 | { | |
991 | unsigned char info = fields[3]; | |
992 | ||
993 | if (bfd_big_endian (abfd)) | |
994 | { | |
995 | rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2]; | |
996 | rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
997 | rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0; | |
68ffbac6 | 998 | rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT) |
19765f52 IS |
999 | & BFD_MACH_O_LENGTH_MASK; |
1000 | rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0; | |
1001 | } | |
1002 | else | |
1003 | { | |
1004 | rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0]; | |
1005 | rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1006 | rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0; | |
68ffbac6 | 1007 | rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT) |
19765f52 IS |
1008 | & BFD_MACH_O_LENGTH_MASK; |
1009 | rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0; | |
1010 | } | |
1011 | } | |
1012 | ||
b32e07d7 | 1013 | static int |
46d1c23b TG |
1014 | bfd_mach_o_canonicalize_one_reloc (bfd *abfd, |
1015 | struct mach_o_reloc_info_external *raw, | |
b32e07d7 | 1016 | arelent *res, asymbol **syms) |
92bc0e80 | 1017 | { |
046b007d | 1018 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
92bc0e80 | 1019 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
b32e07d7 TG |
1020 | bfd_mach_o_reloc_info reloc; |
1021 | bfd_vma addr; | |
b32e07d7 TG |
1022 | asymbol **sym; |
1023 | ||
46d1c23b | 1024 | addr = bfd_get_32 (abfd, raw->r_address); |
19765f52 IS |
1025 | res->sym_ptr_ptr = NULL; |
1026 | res->addend = 0; | |
f4716ee2 | 1027 | |
b32e07d7 TG |
1028 | if (addr & BFD_MACH_O_SR_SCATTERED) |
1029 | { | |
1030 | unsigned int j; | |
19765f52 | 1031 | bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum); |
b32e07d7 | 1032 | |
19765f52 IS |
1033 | /* Scattered relocation, can't be extern. */ |
1034 | reloc.r_scattered = 1; | |
1035 | reloc.r_extern = 0; | |
1036 | ||
1037 | /* Extract section and offset from r_value (symnum). */ | |
1038 | reloc.r_value = symnum; | |
1039 | /* FIXME: This breaks when a symbol in a reloc exactly follows the | |
1040 | end of the data for the section (e.g. in a calculation of section | |
1041 | data length). At present, the symbol will end up associated with | |
1042 | the following section or, if it falls within alignment padding, as | |
1043 | null - which will assert later. */ | |
b32e07d7 TG |
1044 | for (j = 0; j < mdata->nsects; j++) |
1045 | { | |
1046 | bfd_mach_o_section *sect = mdata->sections[j]; | |
1047 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
1048 | { | |
1049 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1050 | res->addend = symnum - sect->addr; | |
1051 | break; | |
1052 | } | |
1053 | } | |
19765f52 IS |
1054 | |
1055 | /* Extract the info and address fields from r_address. */ | |
b32e07d7 TG |
1056 | reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
1057 | reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1058 | reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
19765f52 IS |
1059 | reloc.r_address = BFD_MACH_O_GET_SR_TYPE (addr); |
1060 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); | |
b32e07d7 TG |
1061 | } |
1062 | else | |
1063 | { | |
19765f52 | 1064 | unsigned int num; |
f4716ee2 | 1065 | |
19765f52 IS |
1066 | /* Non-scattered relocation. */ |
1067 | reloc.r_scattered = 0; | |
f4716ee2 | 1068 | |
19765f52 IS |
1069 | /* The value and info fields have to be extracted dependent on target |
1070 | endian-ness. */ | |
1071 | bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum); | |
1072 | num = reloc.r_value; | |
1073 | ||
1074 | if (reloc.r_extern) | |
f4716ee2 TG |
1075 | { |
1076 | /* An external symbol number. */ | |
1077 | sym = syms + num; | |
1078 | } | |
23d72939 | 1079 | else if (num == 0x00ffffff || num == 0) |
f4716ee2 TG |
1080 | { |
1081 | /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this | |
1082 | is generic code, we don't know wether this is really a PAIR. | |
1083 | This value is almost certainly not a valid section number, hence | |
1084 | this specific case to avoid an assertion failure. | |
1085 | Target specific swap_reloc_in routine should adjust that. */ | |
1086 | sym = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1087 | } | |
1088 | else | |
b32e07d7 | 1089 | { |
f4716ee2 | 1090 | /* A section number. */ |
b32e07d7 | 1091 | BFD_ASSERT (num <= mdata->nsects); |
f4716ee2 | 1092 | |
b32e07d7 | 1093 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; |
1523fa24 TG |
1094 | /* For a symbol defined in section S, the addend (stored in the |
1095 | binary) contains the address of the section. To comply with | |
19765f52 | 1096 | bfd convention, subtract the section address. |
1523fa24 TG |
1097 | Use the address from the header, so that the user can modify |
1098 | the vma of the section. */ | |
1099 | res->addend = -mdata->sections[num - 1]->addr; | |
19765f52 | 1100 | } |
f4716ee2 TG |
1101 | /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset |
1102 | in the lower 16bits of the address value. So we have to find the | |
1103 | 'symbol' from the preceding reloc. We do this even though the | |
1104 | section symbol is probably not needed here, because NULL symbol | |
1105 | values cause an assert in generic BFD code. This must be done in | |
1106 | the PPC swap_reloc_in routine. */ | |
b32e07d7 | 1107 | res->sym_ptr_ptr = sym; |
f4716ee2 | 1108 | |
19765f52 IS |
1109 | /* The 'address' is just r_address. |
1110 | ??? maybe this should be masked with 0xffffff for safety. */ | |
1111 | res->address = addr; | |
1112 | reloc.r_address = addr; | |
b32e07d7 | 1113 | } |
f4716ee2 TG |
1114 | |
1115 | /* We have set up a reloc with all the information present, so the swapper | |
1116 | can modify address, value and addend fields, if necessary, to convey | |
1117 | information in the generic BFD reloc that is mach-o specific. */ | |
19765f52 | 1118 | |
b32e07d7 TG |
1119 | if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc)) |
1120 | return -1; | |
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | static int | |
1125 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
1126 | unsigned long count, | |
1127 | arelent *res, asymbol **syms) | |
1128 | { | |
92bc0e80 | 1129 | unsigned long i; |
46d1c23b | 1130 | struct mach_o_reloc_info_external *native_relocs; |
92bc0e80 TG |
1131 | bfd_size_type native_size; |
1132 | ||
92bc0e80 | 1133 | /* Allocate and read relocs. */ |
b32e07d7 | 1134 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
46d1c23b TG |
1135 | native_relocs = |
1136 | (struct mach_o_reloc_info_external *) bfd_malloc (native_size); | |
92bc0e80 TG |
1137 | if (native_relocs == NULL) |
1138 | return -1; | |
1139 | ||
b32e07d7 | 1140 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
92bc0e80 | 1141 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
b32e07d7 TG |
1142 | goto err; |
1143 | ||
1144 | for (i = 0; i < count; i++) | |
92bc0e80 | 1145 | { |
46d1c23b TG |
1146 | if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i], |
1147 | &res[i], syms) < 0) | |
b32e07d7 | 1148 | goto err; |
92bc0e80 | 1149 | } |
b32e07d7 TG |
1150 | free (native_relocs); |
1151 | return i; | |
1152 | err: | |
1153 | free (native_relocs); | |
1154 | return -1; | |
1155 | } | |
1156 | ||
1157 | long | |
1158 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
1159 | arelent **rels, asymbol **syms) | |
1160 | { | |
1161 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1162 | unsigned long i; | |
1163 | arelent *res; | |
1164 | ||
1165 | if (asect->reloc_count == 0) | |
1166 | return 0; | |
1167 | ||
1168 | /* No need to go further if we don't know how to read relocs. */ | |
1169 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) | |
1170 | return 0; | |
92bc0e80 | 1171 | |
dff55db0 | 1172 | if (asect->relocation == NULL) |
92bc0e80 | 1173 | { |
dff55db0 TG |
1174 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); |
1175 | if (res == NULL) | |
1176 | return -1; | |
1177 | ||
1178 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
1179 | asect->reloc_count, res, syms) < 0) | |
1180 | { | |
1181 | free (res); | |
1182 | return -1; | |
1183 | } | |
1184 | asect->relocation = res; | |
92bc0e80 TG |
1185 | } |
1186 | ||
dff55db0 | 1187 | res = asect->relocation; |
92bc0e80 | 1188 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1189 | rels[i] = &res[i]; |
1190 | rels[i] = NULL; | |
92bc0e80 | 1191 | |
b32e07d7 TG |
1192 | return i; |
1193 | } | |
92bc0e80 | 1194 | |
b32e07d7 TG |
1195 | long |
1196 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1197 | { | |
1198 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1199 | |
b32e07d7 TG |
1200 | if (mdata->dysymtab == NULL) |
1201 | return 1; | |
dff55db0 | 1202 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1203 | * sizeof (arelent *); |
1204 | } | |
92bc0e80 | 1205 | |
b32e07d7 TG |
1206 | long |
1207 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
1208 | struct bfd_symbol **syms) | |
1209 | { | |
1210 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1211 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1212 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1213 | unsigned long i; | |
1214 | arelent *res; | |
1215 | ||
1216 | if (dysymtab == NULL) | |
1217 | return 0; | |
1218 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1219 | return 0; | |
1220 | ||
1221 | /* No need to go further if we don't know how to read relocs. */ | |
1222 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) | |
1223 | return 0; | |
1224 | ||
dff55db0 | 1225 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1226 | { |
dff55db0 TG |
1227 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) |
1228 | * sizeof (arelent)); | |
1229 | if (res == NULL) | |
1230 | return -1; | |
b32e07d7 | 1231 | |
dff55db0 TG |
1232 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
1233 | dysymtab->nextrel, res, syms) < 0) | |
1234 | { | |
1235 | free (res); | |
1236 | return -1; | |
1237 | } | |
1238 | ||
1239 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
1240 | dysymtab->nlocrel, | |
1241 | res + dysymtab->nextrel, syms) < 0) | |
1242 | { | |
1243 | free (res); | |
1244 | return -1; | |
1245 | } | |
1246 | ||
1247 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1248 | } |
1249 | ||
dff55db0 | 1250 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1251 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1252 | rels[i] = &res[i]; | |
1253 | rels[i] = NULL; | |
92bc0e80 TG |
1254 | return i; |
1255 | } | |
1256 | ||
19765f52 IS |
1257 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1258 | of the fields in the relocation information vary per target endian-ness. */ | |
1259 | ||
1260 | static void | |
1261 | bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields, | |
1262 | bfd_mach_o_reloc_info *rel) | |
1263 | { | |
1264 | unsigned char info = 0; | |
1265 | ||
1266 | BFD_ASSERT (rel->r_type <= 15); | |
1267 | BFD_ASSERT (rel->r_length <= 3); | |
1268 | ||
1269 | if (bfd_big_endian (abfd)) | |
1270 | { | |
1271 | fields[0] = (rel->r_value >> 16) & 0xff; | |
1272 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1273 | fields[2] = rel->r_value & 0xff; | |
1274 | info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT; | |
1275 | info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0; | |
1276 | info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT; | |
1277 | info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0; | |
1278 | } | |
1279 | else | |
1280 | { | |
1281 | fields[2] = (rel->r_value >> 16) & 0xff; | |
1282 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1283 | fields[0] = rel->r_value & 0xff; | |
1284 | info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT; | |
1285 | info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0; | |
1286 | info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT; | |
1287 | info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0; | |
1288 | } | |
1289 | fields[3] = info; | |
1290 | } | |
1291 | ||
92bc0e80 | 1292 | static bfd_boolean |
ab273af8 | 1293 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1294 | { |
92bc0e80 TG |
1295 | unsigned int i; |
1296 | arelent **entries; | |
1297 | asection *sec; | |
1298 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1299 | ||
1300 | sec = section->bfdsection; | |
1301 | if (sec->reloc_count == 0) | |
1302 | return TRUE; | |
1303 | ||
1304 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1305 | return TRUE; | |
1306 | ||
92bc0e80 TG |
1307 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
1308 | return FALSE; | |
1309 | ||
1310 | /* Convert and write. */ | |
1311 | entries = section->bfdsection->orelocation; | |
1312 | for (i = 0; i < section->nreloc; i++) | |
1313 | { | |
1314 | arelent *rel = entries[i]; | |
46d1c23b | 1315 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1316 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1317 | ||
1318 | /* Convert relocation to an intermediate representation. */ | |
1319 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
1320 | return FALSE; | |
1321 | ||
1322 | /* Lower the relocation info. */ | |
1323 | if (pinfo->r_scattered) | |
1324 | { | |
1325 | unsigned long v; | |
1326 | ||
1327 | v = BFD_MACH_O_SR_SCATTERED | |
1328 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
ca148c5a TG |
1329 | | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length) |
1330 | | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type) | |
1331 | | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address); | |
46d1c23b TG |
1332 | /* Note: scattered relocs have field in reverse order... */ |
1333 | bfd_put_32 (abfd, v, raw.r_address); | |
1334 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
92bc0e80 TG |
1335 | } |
1336 | else | |
1337 | { | |
46d1c23b | 1338 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); |
19765f52 IS |
1339 | bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum, |
1340 | pinfo); | |
92bc0e80 TG |
1341 | } |
1342 | ||
46d1c23b | 1343 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
92bc0e80 TG |
1344 | != BFD_MACH_O_RELENT_SIZE) |
1345 | return FALSE; | |
1346 | } | |
1347 | return TRUE; | |
1348 | } | |
1349 | ||
116c20d2 | 1350 | static int |
ab273af8 | 1351 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1352 | { |
46d1c23b TG |
1353 | struct mach_o_section_32_external raw; |
1354 | ||
1355 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1356 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1357 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1358 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1359 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1360 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1361 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1362 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1363 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1364 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1365 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1366 | ||
1367 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1368 | != BFD_MACH_O_SECTION_SIZE) |
116c20d2 NC |
1369 | return -1; |
1370 | ||
1371 | return 0; | |
1372 | } | |
1373 | ||
1374 | static int | |
ab273af8 | 1375 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1376 | { |
46d1c23b TG |
1377 | struct mach_o_section_64_external raw; |
1378 | ||
1379 | memcpy (raw.sectname, section->sectname, 16); | |
1380 | memcpy (raw.segname, section->segname, 16); | |
1381 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1382 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1383 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1384 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1385 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1386 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1387 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1388 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1389 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1390 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1391 | ||
1392 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1393 | != BFD_MACH_O_SECTION_64_SIZE) |
116c20d2 NC |
1394 | return -1; |
1395 | ||
1e8a024a TG |
1396 | return 0; |
1397 | } | |
1398 | ||
1399 | static int | |
ab273af8 | 1400 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1401 | { |
46d1c23b | 1402 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1403 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1404 | bfd_mach_o_section *sec; |
1e8a024a | 1405 | |
c2f09c75 TG |
1406 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1407 | ||
f1bde64c TG |
1408 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1409 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
92bc0e80 | 1410 | return -1; |
c2f09c75 | 1411 | |
46d1c23b TG |
1412 | memcpy (raw.segname, seg->segname, 16); |
1413 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1414 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1415 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1416 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1417 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1418 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1419 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1420 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
68ffbac6 | 1421 | |
46d1c23b TG |
1422 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1423 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
c2f09c75 | 1424 | return -1; |
1e8a024a | 1425 | |
f1bde64c TG |
1426 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1427 | if (bfd_mach_o_write_section_32 (abfd, sec)) | |
92bc0e80 | 1428 | return -1; |
1e8a024a | 1429 | |
116c20d2 NC |
1430 | return 0; |
1431 | } | |
1432 | ||
1e8a024a | 1433 | static int |
ab273af8 | 1434 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1435 | { |
46d1c23b | 1436 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1437 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1438 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1439 | |
1440 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1441 | ||
f1bde64c TG |
1442 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1443 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
92bc0e80 | 1444 | return -1; |
c2f09c75 | 1445 | |
46d1c23b TG |
1446 | memcpy (raw.segname, seg->segname, 16); |
1447 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1448 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1449 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1450 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1451 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1452 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1453 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1454 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1455 | ||
1456 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1457 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
c2f09c75 TG |
1458 | return -1; |
1459 | ||
f1bde64c TG |
1460 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1461 | if (bfd_mach_o_write_section_64 (abfd, sec)) | |
92bc0e80 | 1462 | return -1; |
c2f09c75 | 1463 | |
c2f09c75 | 1464 | return 0; |
1e8a024a TG |
1465 | } |
1466 | ||
c2f09c75 | 1467 | static bfd_boolean |
ab273af8 | 1468 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 | 1469 | { |
046b007d | 1470 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1471 | bfd_mach_o_symtab_command *sym = &command->command.symtab; |
116c20d2 | 1472 | unsigned long i; |
c2f09c75 | 1473 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
046b007d | 1474 | unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; |
c2f09c75 TG |
1475 | struct bfd_strtab_hash *strtab; |
1476 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1477 | ||
1478 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
1479 | ||
1480 | /* Write the symbols first. */ | |
3cc27770 | 1481 | mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2); |
92bc0e80 | 1482 | sym->symoff = mdata->filelen; |
c2f09c75 TG |
1483 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) |
1484 | return FALSE; | |
1485 | ||
1486 | sym->nsyms = bfd_get_symcount (abfd); | |
92bc0e80 | 1487 | mdata->filelen += sym->nsyms * symlen; |
c2f09c75 TG |
1488 | |
1489 | strtab = _bfd_stringtab_init (); | |
1490 | if (strtab == NULL) | |
1491 | return FALSE; | |
116c20d2 | 1492 | |
a4551119 TG |
1493 | if (sym->nsyms > 0) |
1494 | /* Although we don't strictly need to do this, for compatibility with | |
1495 | Darwin system tools, actually output an empty string for the index | |
1496 | 0 entry. */ | |
1497 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
1498 | ||
116c20d2 NC |
1499 | for (i = 0; i < sym->nsyms; i++) |
1500 | { | |
91d6fa6a | 1501 | bfd_size_type str_index; |
92bc0e80 | 1502 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
68ffbac6 | 1503 | |
92bc0e80 | 1504 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 1505 | /* An index of 0 always means the empty string. */ |
91d6fa6a | 1506 | str_index = 0; |
c2f09c75 TG |
1507 | else |
1508 | { | |
91d6fa6a | 1509 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); |
7f307238 | 1510 | |
91d6fa6a | 1511 | if (str_index == (bfd_size_type) -1) |
c2f09c75 TG |
1512 | goto err; |
1513 | } | |
46d1c23b | 1514 | |
c2f09c75 | 1515 | if (wide) |
46d1c23b TG |
1516 | { |
1517 | struct mach_o_nlist_64_external raw; | |
1518 | ||
1519 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
1520 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1521 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1522 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1523 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
1524 | raw.n_value); | |
1525 | ||
1526 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1527 | goto err; | |
1528 | } | |
c2f09c75 | 1529 | else |
46d1c23b TG |
1530 | { |
1531 | struct mach_o_nlist_external raw; | |
116c20d2 | 1532 | |
46d1c23b TG |
1533 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
1534 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1535 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1536 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1537 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
1538 | raw.n_value); | |
1539 | ||
1540 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1541 | goto err; | |
1542 | } | |
116c20d2 | 1543 | } |
c2f09c75 | 1544 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
1545 | sym->stroff = mdata->filelen; |
1546 | mdata->filelen += sym->strsize; | |
116c20d2 | 1547 | |
c2f09c75 TG |
1548 | if (_bfd_stringtab_emit (abfd, strtab) != TRUE) |
1549 | goto err; | |
1550 | _bfd_stringtab_free (strtab); | |
116c20d2 | 1551 | |
c2f09c75 | 1552 | /* The command. */ |
46d1c23b TG |
1553 | { |
1554 | struct mach_o_symtab_command_external raw; | |
116c20d2 | 1555 | |
46d1c23b TG |
1556 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); |
1557 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
1558 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
1559 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
1560 | ||
1561 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1562 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1563 | return FALSE; | |
1564 | } | |
116c20d2 | 1565 | |
c2f09c75 | 1566 | return TRUE; |
116c20d2 | 1567 | |
c2f09c75 TG |
1568 | err: |
1569 | _bfd_stringtab_free (strtab); | |
1570 | return FALSE; | |
116c20d2 NC |
1571 | } |
1572 | ||
7f307238 IS |
1573 | /* Write a dysymtab command. |
1574 | TODO: Possibly coalesce writes of smaller objects. */ | |
1575 | ||
1576 | static bfd_boolean | |
1577 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) | |
1578 | { | |
1579 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
1580 | ||
1581 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
1582 | ||
1583 | if (cmd->nmodtab != 0) | |
1584 | { | |
1585 | unsigned int i; | |
1586 | ||
1587 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
1588 | return FALSE; | |
1589 | ||
1590 | for (i = 0; i < cmd->nmodtab; i++) | |
1591 | { | |
1592 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
1593 | unsigned int iinit; | |
1594 | unsigned int ninit; | |
1595 | ||
1596 | iinit = module->iinit & 0xffff; | |
1597 | iinit |= ((module->iterm & 0xffff) << 16); | |
1598 | ||
1599 | ninit = module->ninit & 0xffff; | |
1600 | ninit |= ((module->nterm & 0xffff) << 16); | |
1601 | ||
1602 | if (bfd_mach_o_wide_p (abfd)) | |
1603 | { | |
1604 | struct mach_o_dylib_module_64_external w; | |
1605 | ||
1606 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
1607 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
1608 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
1609 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
1610 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
1611 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
1612 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
1613 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
1614 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
1615 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
1616 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
1617 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
1618 | &w.objc_module_info_addr); | |
1619 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
1620 | &w.objc_module_info_size); | |
1621 | ||
1622 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
1623 | return FALSE; | |
1624 | } | |
1625 | else | |
1626 | { | |
1627 | struct mach_o_dylib_module_external n; | |
1628 | ||
1629 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
1630 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
1631 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
1632 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
1633 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
1634 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
1635 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
1636 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
1637 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
1638 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
1639 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
1640 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
1641 | &n.objc_module_info_addr); | |
1642 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
1643 | &n.objc_module_info_size); | |
1644 | ||
1645 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
1646 | return FALSE; | |
1647 | } | |
1648 | } | |
1649 | } | |
1650 | ||
1651 | if (cmd->ntoc != 0) | |
1652 | { | |
1653 | unsigned int i; | |
1654 | ||
1655 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
1656 | return FALSE; | |
1657 | ||
1658 | for (i = 0; i < cmd->ntoc; i++) | |
1659 | { | |
1660 | struct mach_o_dylib_table_of_contents_external raw; | |
1661 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
1662 | ||
1663 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
1664 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
1665 | ||
1666 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1667 | return FALSE; | |
1668 | } | |
1669 | } | |
68ffbac6 | 1670 | |
7f307238 IS |
1671 | if (cmd->nindirectsyms > 0) |
1672 | { | |
1673 | unsigned int i; | |
1674 | ||
1675 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
1676 | return FALSE; | |
1677 | ||
1678 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
1679 | { | |
1680 | unsigned char raw[4]; | |
1681 | ||
1682 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
1683 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
1684 | return FALSE; | |
68ffbac6 | 1685 | } |
7f307238 IS |
1686 | } |
1687 | ||
1688 | if (cmd->nextrefsyms != 0) | |
1689 | { | |
1690 | unsigned int i; | |
1691 | ||
1692 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
1693 | return FALSE; | |
1694 | ||
1695 | for (i = 0; i < cmd->nextrefsyms; i++) | |
1696 | { | |
1697 | unsigned long v; | |
1698 | unsigned char raw[4]; | |
1699 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
1700 | ||
1701 | /* Fields isym and flags are written as bit-fields, thus we need | |
1702 | a specific processing for endianness. */ | |
1703 | ||
1704 | if (bfd_big_endian (abfd)) | |
1705 | { | |
1706 | v = ((ref->isym & 0xffffff) << 8); | |
1707 | v |= ref->flags & 0xff; | |
1708 | } | |
1709 | else | |
1710 | { | |
1711 | v = ref->isym & 0xffffff; | |
1712 | v |= ((ref->flags & 0xff) << 24); | |
1713 | } | |
1714 | ||
1715 | bfd_h_put_32 (abfd, v, raw); | |
1716 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
1717 | return FALSE; | |
1718 | } | |
1719 | } | |
1720 | ||
1721 | /* The command. */ | |
1722 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
1723 | return FALSE; | |
1724 | else | |
1725 | { | |
1726 | struct mach_o_dysymtab_command_external raw; | |
1727 | ||
1728 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
1729 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
1730 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
1731 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
1732 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
1733 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
1734 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
1735 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
1736 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
1737 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
1738 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
1739 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
1740 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
1741 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
1742 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
1743 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
1744 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
1745 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
1746 | ||
1747 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1748 | return FALSE; | |
1749 | } | |
1750 | ||
1751 | return TRUE; | |
1752 | } | |
1753 | ||
1754 | static unsigned | |
b22161d6 | 1755 | bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s) |
7f307238 | 1756 | { |
b22161d6 | 1757 | unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE; |
68588f95 IS |
1758 | |
1759 | /* Just leave debug symbols where they are (pretend they are local, and | |
1760 | then they will just be sorted on position). */ | |
b22161d6 | 1761 | if (s->n_type & BFD_MACH_O_N_STAB) |
68588f95 IS |
1762 | return 0; |
1763 | ||
7f307238 | 1764 | /* Local (we should never see an undefined local AFAICT). */ |
b22161d6 | 1765 | if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
1766 | return 0; |
1767 | ||
1768 | /* Common symbols look like undefined externs. */ | |
68588f95 | 1769 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
1770 | return 2; |
1771 | ||
b22161d6 | 1772 | /* A defined non-local, non-debug symbol. */ |
7f307238 IS |
1773 | return 1; |
1774 | } | |
1775 | ||
1776 | static int | |
1777 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
1778 | { | |
1779 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
1780 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
1781 | unsigned int soa, sob; | |
1782 | ||
b22161d6 IS |
1783 | soa = bfd_mach_o_primary_symbol_sort_key (sa); |
1784 | sob = bfd_mach_o_primary_symbol_sort_key (sb); | |
7f307238 IS |
1785 | if (soa < sob) |
1786 | return -1; | |
1787 | ||
1788 | if (soa > sob) | |
1789 | return 1; | |
1790 | ||
68588f95 | 1791 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
1792 | if (soa == 0) |
1793 | { | |
1794 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
1795 | return -1; | |
1796 | if (sa->symbol.udata.i > sb->symbol.udata.i) | |
1797 | return 1; | |
b22161d6 IS |
1798 | |
1799 | /* This is probably an error. */ | |
7f307238 IS |
1800 | return 0; |
1801 | } | |
1802 | ||
b22161d6 IS |
1803 | /* The second sort key is name. */ |
1804 | return strcmp (sa->symbol.name, sb->symbol.name); | |
7f307238 IS |
1805 | } |
1806 | ||
1807 | /* Process the symbols. | |
1808 | ||
1809 | This should be OK for single-module files - but it is not likely to work | |
1810 | for multi-module shared libraries. | |
1811 | ||
1812 | (a) If the application has not filled in the relevant mach-o fields, make | |
1813 | an estimate. | |
1814 | ||
1815 | (b) Order them, like this: | |
1816 | ( i) local. | |
1817 | (unsorted) | |
1818 | ( ii) external defined | |
1819 | (by name) | |
b22161d6 | 1820 | (iii) external undefined/common |
7f307238 IS |
1821 | (by name) |
1822 | ( iv) common | |
1823 | (by name) | |
b22161d6 | 1824 | */ |
92bc0e80 TG |
1825 | |
1826 | static bfd_boolean | |
b22161d6 | 1827 | bfd_mach_o_mangle_symbols (bfd *abfd) |
92bc0e80 TG |
1828 | { |
1829 | unsigned long i; | |
1830 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1831 | ||
7f307238 IS |
1832 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
1833 | return TRUE; | |
1834 | ||
92bc0e80 TG |
1835 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
1836 | { | |
1837 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1838 | ||
b22161d6 IS |
1839 | /* We use this value, which is out-of-range as a symbol index, to signal |
1840 | that the mach-o-specific data are not filled in and need to be created | |
1841 | from the bfd values. It is much preferable for the application to do | |
1842 | this, since more meaningful diagnostics can be made that way. */ | |
1843 | ||
1844 | if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET) | |
92bc0e80 | 1845 | { |
b22161d6 IS |
1846 | /* No symbol information has been set - therefore determine |
1847 | it from the bfd symbol flags/info. */ | |
92bc0e80 TG |
1848 | if (s->symbol.section == bfd_abs_section_ptr) |
1849 | s->n_type = BFD_MACH_O_N_ABS; | |
1850 | else if (s->symbol.section == bfd_und_section_ptr) | |
1851 | { | |
1852 | s->n_type = BFD_MACH_O_N_UNDF; | |
1853 | if (s->symbol.flags & BSF_WEAK) | |
1854 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
7f307238 IS |
1855 | /* mach-o automatically makes undefined symbols extern. */ |
1856 | s->n_type |= BFD_MACH_O_N_EXT; | |
b22161d6 | 1857 | s->symbol.flags |= BSF_GLOBAL; |
92bc0e80 TG |
1858 | } |
1859 | else if (s->symbol.section == bfd_com_section_ptr) | |
b22161d6 IS |
1860 | { |
1861 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; | |
1862 | s->symbol.flags |= BSF_GLOBAL; | |
1863 | } | |
92bc0e80 TG |
1864 | else |
1865 | s->n_type = BFD_MACH_O_N_SECT; | |
68ffbac6 | 1866 | |
92bc0e80 TG |
1867 | if (s->symbol.flags & BSF_GLOBAL) |
1868 | s->n_type |= BFD_MACH_O_N_EXT; | |
1869 | } | |
1870 | ||
7f307238 | 1871 | /* Put the section index in, where required. */ |
68588f95 | 1872 | if ((s->symbol.section != bfd_abs_section_ptr |
92bc0e80 TG |
1873 | && s->symbol.section != bfd_und_section_ptr |
1874 | && s->symbol.section != bfd_com_section_ptr) | |
68588f95 IS |
1875 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 |
1876 | && s->symbol.name == NULL)) | |
707e555b | 1877 | s->n_sect = s->symbol.section->output_section->target_index; |
92bc0e80 | 1878 | |
b22161d6 IS |
1879 | /* Number to preserve order for local and debug syms. */ |
1880 | s->symbol.udata.i = i; | |
7f307238 IS |
1881 | } |
1882 | ||
b22161d6 IS |
1883 | /* Sort the symbols. */ |
1884 | qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd), | |
1885 | sizeof (asymbol *), bfd_mach_o_cf_symbols); | |
7f307238 | 1886 | |
b22161d6 IS |
1887 | for (i = 0; i < bfd_get_symcount (abfd); ++i) |
1888 | { | |
1889 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1890 | s->symbol.udata.i = i; /* renumber. */ | |
7f307238 IS |
1891 | } |
1892 | ||
1893 | return TRUE; | |
1894 | } | |
1895 | ||
1896 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
1897 | Fill in the section number and other mach-o-specific data. */ | |
1898 | ||
1899 | static bfd_boolean | |
1900 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
1901 | { | |
1902 | asection *sec; | |
1903 | unsigned target_index; | |
1904 | unsigned nsect; | |
1905 | ||
1906 | nsect = bfd_count_sections (abfd); | |
68ffbac6 | 1907 | |
7f307238 IS |
1908 | /* Don't do it if it's already set - assume the application knows what it's |
1909 | doing. */ | |
1910 | if (mdata->nsects == nsect | |
1911 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
1912 | return TRUE; | |
1913 | ||
1914 | mdata->nsects = nsect; | |
68ffbac6 | 1915 | mdata->sections = bfd_alloc (abfd, |
7f307238 IS |
1916 | mdata->nsects * sizeof (bfd_mach_o_section *)); |
1917 | if (mdata->sections == NULL) | |
1918 | return FALSE; | |
1919 | ||
1920 | /* We need to check that this can be done... */ | |
1921 | if (nsect > 255) | |
1922 | (*_bfd_error_handler) (_("mach-o: there are too many sections (%d)" | |
1923 | " maximum is 255,\n"), nsect); | |
1924 | ||
1925 | /* Create Mach-O sections. | |
68ffbac6 | 1926 | Section type, attribute and align should have been set when the |
7f307238 IS |
1927 | section was created - either read in or specified. */ |
1928 | target_index = 0; | |
1929 | for (sec = abfd->sections; sec; sec = sec->next) | |
1930 | { | |
1931 | unsigned bfd_align = bfd_get_section_alignment (abfd, sec); | |
1932 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); | |
1933 | ||
1934 | mdata->sections[target_index] = msect; | |
1935 | ||
1936 | msect->addr = bfd_get_section_vma (abfd, sec); | |
1937 | msect->size = bfd_get_section_size (sec); | |
1938 | ||
68ffbac6 | 1939 | /* Use the largest alignment set, in case it was bumped after the |
7f307238 IS |
1940 | section was created. */ |
1941 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
1942 | ||
1943 | msect->offset = 0; | |
1944 | sec->target_index = ++target_index; | |
92bc0e80 | 1945 | } |
7f307238 | 1946 | |
92bc0e80 TG |
1947 | return TRUE; |
1948 | } | |
1949 | ||
154a1ee5 | 1950 | bfd_boolean |
116c20d2 | 1951 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b NC |
1952 | { |
1953 | unsigned int i; | |
046b007d | 1954 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 1955 | |
7f307238 | 1956 | /* Make the commands, if not already present. */ |
92bc0e80 TG |
1957 | if (mdata->header.ncmds == 0) |
1958 | if (!bfd_mach_o_build_commands (abfd)) | |
1959 | return FALSE; | |
1960 | ||
154a1ee5 | 1961 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 1962 | return FALSE; |
3af9a47b NC |
1963 | |
1964 | for (i = 0; i < mdata->header.ncmds; i++) | |
1965 | { | |
46d1c23b | 1966 | struct mach_o_load_command_external raw; |
3af9a47b NC |
1967 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
1968 | unsigned long typeflag; | |
1969 | ||
154a1ee5 | 1970 | typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 1971 | |
46d1c23b TG |
1972 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
1973 | bfd_h_put_32 (abfd, cur->len, raw.cmdsize); | |
3af9a47b | 1974 | |
c2f09c75 | 1975 | if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0 |
46d1c23b | 1976 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 1977 | return FALSE; |
3af9a47b NC |
1978 | |
1979 | switch (cur->type) | |
1980 | { | |
1981 | case BFD_MACH_O_LC_SEGMENT: | |
ab273af8 | 1982 | if (bfd_mach_o_write_segment_32 (abfd, cur) != 0) |
1e8a024a TG |
1983 | return FALSE; |
1984 | break; | |
1985 | case BFD_MACH_O_LC_SEGMENT_64: | |
ab273af8 | 1986 | if (bfd_mach_o_write_segment_64 (abfd, cur) != 0) |
b34976b6 | 1987 | return FALSE; |
3af9a47b NC |
1988 | break; |
1989 | case BFD_MACH_O_LC_SYMTAB: | |
ab273af8 | 1990 | if (!bfd_mach_o_write_symtab (abfd, cur)) |
b34976b6 | 1991 | return FALSE; |
3af9a47b | 1992 | break; |
7f307238 IS |
1993 | case BFD_MACH_O_LC_DYSYMTAB: |
1994 | if (!bfd_mach_o_write_dysymtab (abfd, cur)) | |
1995 | return FALSE; | |
1996 | break; | |
3af9a47b NC |
1997 | case BFD_MACH_O_LC_SYMSEG: |
1998 | break; | |
1999 | case BFD_MACH_O_LC_THREAD: | |
2000 | case BFD_MACH_O_LC_UNIXTHREAD: | |
ab273af8 | 2001 | if (bfd_mach_o_write_thread (abfd, cur) != 0) |
b34976b6 | 2002 | return FALSE; |
3af9a47b NC |
2003 | break; |
2004 | case BFD_MACH_O_LC_LOADFVMLIB: | |
2005 | case BFD_MACH_O_LC_IDFVMLIB: | |
2006 | case BFD_MACH_O_LC_IDENT: | |
2007 | case BFD_MACH_O_LC_FVMFILE: | |
2008 | case BFD_MACH_O_LC_PREPAGE: | |
3af9a47b NC |
2009 | case BFD_MACH_O_LC_LOAD_DYLIB: |
2010 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
2011 | case BFD_MACH_O_LC_ID_DYLIB: | |
046b007d | 2012 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 2013 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
3af9a47b NC |
2014 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
2015 | case BFD_MACH_O_LC_ID_DYLINKER: | |
2016 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
2017 | case BFD_MACH_O_LC_ROUTINES: | |
2018 | case BFD_MACH_O_LC_SUB_FRAMEWORK: | |
2019 | break; | |
2020 | default: | |
3cc27770 TG |
2021 | (*_bfd_error_handler) |
2022 | (_("unable to write unknown load command 0x%lx"), | |
2023 | (unsigned long) cur->type); | |
b34976b6 | 2024 | return FALSE; |
3af9a47b NC |
2025 | } |
2026 | } | |
2027 | ||
b34976b6 | 2028 | return TRUE; |
3af9a47b NC |
2029 | } |
2030 | ||
f1bde64c TG |
2031 | static void |
2032 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
2033 | asection *sec) | |
2034 | { | |
2035 | bfd_mach_o_section *s = (bfd_mach_o_section *)sec->used_by_bfd; | |
2036 | if (seg->sect_head == NULL) | |
2037 | seg->sect_head = s; | |
2038 | else | |
2039 | seg->sect_tail->next = s; | |
2040 | seg->sect_tail = s; | |
2041 | } | |
2042 | ||
2043 | /* Create section Mach-O flags from BFD flags. */ | |
2044 | ||
2045 | static void | |
3cc27770 TG |
2046 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, |
2047 | asection *sec) | |
f1bde64c TG |
2048 | { |
2049 | flagword bfd_flags; | |
2050 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2051 | ||
2052 | /* Create default flags. */ | |
2053 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
2054 | if ((bfd_flags & SEC_CODE) == SEC_CODE) | |
2055 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2056 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2057 | | BFD_MACH_O_S_REGULAR; | |
2058 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2059 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2060 | else if (bfd_flags & SEC_DEBUGGING) | |
2061 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2062 | else | |
2063 | s->flags = BFD_MACH_O_S_REGULAR; | |
2064 | } | |
2065 | ||
7f307238 IS |
2066 | /* Count the number of sections in the list for the segment named. |
2067 | ||
2068 | The special case of NULL or "" for the segment name is valid for | |
68ffbac6 L |
2069 | an MH_OBJECT file and means 'all sections available'. |
2070 | ||
2071 | Requires that the sections table in mdata be filled in. | |
7f307238 IS |
2072 | |
2073 | Returns the number of sections (0 is valid). | |
2074 | Any number > 255 signals an invalid section count, although we will, | |
2075 | perhaps, allow the file to be written (in line with Darwin tools up | |
68ffbac6 L |
2076 | to XCode 4). |
2077 | ||
7f307238 IS |
2078 | A section count of (unsigned long) -1 signals a definite error. */ |
2079 | ||
2080 | static unsigned long | |
2081 | bfd_mach_o_count_sections_for_seg (const char *segment, | |
2082 | bfd_mach_o_data_struct *mdata) | |
2083 | { | |
2084 | unsigned i,j; | |
2085 | if (mdata == NULL || mdata->sections == NULL) | |
2086 | return (unsigned long) -1; | |
2087 | ||
2088 | /* The MH_OBJECT case, all sections are considered; Although nsects is | |
2089 | is an unsigned long, the maximum valid section count is 255 and this | |
2090 | will have been checked already by mangle_sections. */ | |
2091 | if (segment == NULL || segment[0] == '\0') | |
2092 | return mdata->nsects; | |
2093 | ||
2094 | /* Count the number of sections we see in this segment. */ | |
2095 | j = 0; | |
2096 | for (i = 0; i < mdata->nsects; ++i) | |
2097 | { | |
2098 | bfd_mach_o_section *s = mdata->sections[i]; | |
2099 | if (strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
2100 | j++; | |
2101 | } | |
2102 | return j; | |
2103 | } | |
2104 | ||
2105 | static bfd_boolean | |
2106 | bfd_mach_o_build_seg_command (const char *segment, | |
2107 | bfd_mach_o_data_struct *mdata, | |
2108 | bfd_mach_o_segment_command *seg) | |
2109 | { | |
2110 | unsigned i; | |
2111 | int is_mho = (segment == NULL || segment[0] == '\0'); | |
2112 | ||
2113 | /* Fill segment command. */ | |
2114 | if (is_mho) | |
2115 | memset (seg->segname, 0, sizeof (seg->segname)); | |
2116 | else | |
2117 | strncpy (seg->segname, segment, sizeof (seg->segname)); | |
2118 | ||
2119 | /* TODO: fix this up for non-MH_OBJECT cases. */ | |
2120 | seg->vmaddr = 0; | |
e5081f2f | 2121 | seg->vmsize = 0; |
7f307238 IS |
2122 | |
2123 | seg->fileoff = mdata->filelen; | |
2124 | seg->filesize = 0; | |
2125 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2126 | | BFD_MACH_O_PROT_EXECUTE; | |
2127 | seg->initprot = seg->maxprot; | |
2128 | seg->flags = 0; | |
2129 | seg->sect_head = NULL; | |
2130 | seg->sect_tail = NULL; | |
2131 | ||
68ffbac6 | 2132 | /* Append sections to the segment. |
09903f4b IS |
2133 | |
2134 | This is a little tedious, we have to honor the need to account zerofill | |
2135 | sections after all the rest. This forces us to do the calculation of | |
68ffbac6 | 2136 | total vmsize in three passes so that any alignment increments are |
09903f4b | 2137 | properly accounted. */ |
7f307238 IS |
2138 | |
2139 | for (i = 0; i < mdata->nsects; ++i) | |
2140 | { | |
2141 | bfd_mach_o_section *s = mdata->sections[i]; | |
2142 | asection *sec = s->bfdsection; | |
2143 | ||
2144 | /* If we're not making an MH_OBJECT, check whether this section is from | |
2145 | our segment, and skip if not. Otherwise, just add all sections. */ | |
68ffbac6 | 2146 | if (! is_mho |
7f307238 IS |
2147 | && strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) != 0) |
2148 | continue; | |
2149 | ||
09903f4b IS |
2150 | /* Although we account for zerofill section sizes in vm order, they are |
2151 | placed in the file in source sequence. */ | |
7f307238 | 2152 | bfd_mach_o_append_section_to_segment (seg, sec); |
e5081f2f | 2153 | s->offset = 0; |
68ffbac6 L |
2154 | |
2155 | /* Zerofill sections have zero file size & offset, | |
e5081f2f IS |
2156 | and are not written. */ |
2157 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL | |
68ffbac6 | 2158 | || (s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
e5081f2f IS |
2159 | == BFD_MACH_O_S_GB_ZEROFILL) |
2160 | continue; | |
2161 | ||
2162 | if (s->size > 0) | |
7f307238 | 2163 | { |
09903f4b IS |
2164 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); |
2165 | seg->vmsize += s->size; | |
2166 | ||
2167 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
2168 | seg->filesize += s->size; | |
2169 | ||
707e555b | 2170 | /* Note: follow alignment even for object file. */ |
7f307238 IS |
2171 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2172 | s->offset = mdata->filelen; | |
2173 | } | |
2174 | ||
2175 | sec->filepos = s->offset; | |
7f307238 IS |
2176 | mdata->filelen += s->size; |
2177 | } | |
2178 | ||
707e555b TG |
2179 | /* Be sure the file offset of the segment is the file offset of its first |
2180 | section (may have changed due to alignment). */ | |
2181 | if (seg->sect_head != NULL) | |
2182 | seg->fileoff = seg->sect_head->offset; | |
2183 | ||
3cc27770 TG |
2184 | /* Now pass through again, for zerofill, only now we just update the |
2185 | vmsize. */ | |
09903f4b IS |
2186 | for (i = 0; i < mdata->nsects; ++i) |
2187 | { | |
2188 | bfd_mach_o_section *s = mdata->sections[i]; | |
2189 | ||
2190 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL) | |
2191 | continue; | |
2192 | ||
68ffbac6 | 2193 | if (! is_mho |
707e555b TG |
2194 | && strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) != 0) |
2195 | continue; | |
09903f4b IS |
2196 | |
2197 | if (s->size > 0) | |
2198 | { | |
2199 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2200 | seg->vmsize += s->size; | |
2201 | } | |
2202 | } | |
2203 | ||
2204 | /* Now pass through again, for zerofill_GB. */ | |
2205 | for (i = 0; i < mdata->nsects; ++i) | |
2206 | { | |
2207 | bfd_mach_o_section *s = mdata->sections[i]; | |
68ffbac6 | 2208 | |
09903f4b IS |
2209 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_GB_ZEROFILL) |
2210 | continue; | |
2211 | ||
68ffbac6 | 2212 | if (! is_mho |
09903f4b IS |
2213 | && strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) != 0) |
2214 | continue; | |
2215 | ||
2216 | if (s->size > 0) | |
2217 | { | |
2218 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2219 | seg->vmsize += s->size; | |
2220 | } | |
2221 | } | |
bb76d940 | 2222 | |
09903f4b | 2223 | /* Allocate space for the relocations. */ |
707e555b | 2224 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); |
bb76d940 IS |
2225 | |
2226 | for (i = 0; i < mdata->nsects; ++i) | |
2227 | { | |
2228 | bfd_mach_o_section *ms = mdata->sections[i]; | |
2229 | asection *sec = ms->bfdsection; | |
68ffbac6 | 2230 | |
bb76d940 IS |
2231 | if ((ms->nreloc = sec->reloc_count) == 0) |
2232 | { | |
2233 | ms->reloff = 0; | |
2234 | continue; | |
2235 | } | |
2236 | sec->rel_filepos = mdata->filelen; | |
2237 | ms->reloff = sec->rel_filepos; | |
2238 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
2239 | } | |
7f307238 IS |
2240 | |
2241 | return TRUE; | |
2242 | } | |
2243 | ||
50d10658 IS |
2244 | /* Count the number of indirect symbols in the image. |
2245 | Requires that the sections are in their final order. */ | |
2246 | ||
2247 | static unsigned int | |
2248 | bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2249 | { | |
2250 | unsigned int i; | |
2251 | unsigned int nisyms = 0; | |
2252 | ||
2253 | for (i = 0; i < mdata->nsects; ++i) | |
2254 | { | |
2255 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2256 | ||
2257 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2258 | { | |
2259 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2260 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2261 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2262 | nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2263 | break; | |
2264 | default: | |
2265 | break; | |
2266 | } | |
2267 | } | |
2268 | return nisyms; | |
2269 | } | |
2270 | ||
7f307238 IS |
2271 | static bfd_boolean |
2272 | bfd_mach_o_build_dysymtab_command (bfd *abfd, | |
2273 | bfd_mach_o_data_struct *mdata, | |
2274 | bfd_mach_o_load_command *cmd) | |
2275 | { | |
2276 | bfd_mach_o_dysymtab_command *dsym = &cmd->command.dysymtab; | |
2277 | ||
2278 | /* TODO: | |
2279 | We are not going to try and fill these in yet and, moreover, we are | |
2280 | going to bail if they are already set. */ | |
2281 | if (dsym->nmodtab != 0 | |
2282 | || dsym->ntoc != 0 | |
2283 | || dsym->nextrefsyms != 0) | |
2284 | { | |
2285 | (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet" | |
2286 | " implemented for dysymtab commands.")); | |
2287 | return FALSE; | |
2288 | } | |
2289 | ||
2290 | dsym->ilocalsym = 0; | |
7f307238 | 2291 | |
b22161d6 | 2292 | if (bfd_get_symcount (abfd) > 0) |
7f307238 | 2293 | { |
b22161d6 IS |
2294 | asymbol **symbols = bfd_get_outsymbols (abfd); |
2295 | unsigned long i; | |
2296 | ||
2297 | /* Count the number of each kind of symbol. */ | |
2298 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
2299 | { | |
2300 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2301 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
2302 | break; | |
2303 | } | |
2304 | dsym->nlocalsym = i; | |
2305 | dsym->iextdefsym = i; | |
2306 | for (; i < bfd_get_symcount (abfd); ++i) | |
2307 | { | |
2308 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2309 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
2310 | break; | |
2311 | } | |
2312 | dsym->nextdefsym = i - dsym->nlocalsym; | |
2313 | dsym->iundefsym = dsym->nextdefsym + dsym->iextdefsym; | |
68ffbac6 L |
2314 | dsym->nundefsym = bfd_get_symcount (abfd) |
2315 | - dsym->nlocalsym | |
b22161d6 IS |
2316 | - dsym->nextdefsym; |
2317 | } | |
2318 | else | |
2319 | { | |
2320 | dsym->nlocalsym = 0; | |
2321 | dsym->iextdefsym = 0; | |
2322 | dsym->nextdefsym = 0; | |
2323 | dsym->iundefsym = 0; | |
2324 | dsym->nundefsym = 0; | |
2325 | } | |
2326 | ||
50d10658 | 2327 | dsym->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata); |
b22161d6 IS |
2328 | if (dsym->nindirectsyms > 0) |
2329 | { | |
2330 | unsigned i; | |
50d10658 | 2331 | unsigned n; |
7f307238 IS |
2332 | |
2333 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2334 | dsym->indirectsymoff = mdata->filelen; | |
b22161d6 | 2335 | mdata->filelen += dsym->nindirectsyms * 4; |
68ffbac6 | 2336 | |
b22161d6 | 2337 | dsym->indirect_syms = bfd_zalloc (abfd, dsym->nindirectsyms * 4); |
7f307238 IS |
2338 | if (dsym->indirect_syms == NULL) |
2339 | return FALSE; | |
68ffbac6 | 2340 | |
50d10658 IS |
2341 | n = 0; |
2342 | for (i = 0; i < mdata->nsects; ++i) | |
7f307238 | 2343 | { |
50d10658 IS |
2344 | bfd_mach_o_section *sec = mdata->sections[i]; |
2345 | ||
2346 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2347 | { | |
2348 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2349 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2350 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2351 | { | |
2352 | unsigned j, num; | |
2353 | bfd_mach_o_asymbol **isyms = sec->indirect_syms; | |
68ffbac6 | 2354 | |
50d10658 IS |
2355 | num = bfd_mach_o_section_get_nbr_indirect (abfd, sec); |
2356 | if (isyms == NULL || num == 0) | |
2357 | break; | |
2358 | /* Record the starting index in the reserved1 field. */ | |
2359 | sec->reserved1 = n; | |
2360 | for (j = 0; j < num; j++, n++) | |
2361 | { | |
2362 | if (isyms[j] == NULL) | |
2363 | dsym->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL; | |
687be931 IS |
2364 | else if (isyms[j]->symbol.section == bfd_abs_section_ptr |
2365 | && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT)) | |
2366 | dsym->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL | |
2367 | | BFD_MACH_O_INDIRECT_SYM_ABS; | |
50d10658 IS |
2368 | else |
2369 | dsym->indirect_syms[n] = isyms[j]->symbol.udata.i; | |
2370 | } | |
2371 | } | |
2372 | break; | |
2373 | default: | |
2374 | break; | |
2375 | } | |
7f307238 IS |
2376 | } |
2377 | } | |
2378 | ||
2379 | return TRUE; | |
2380 | } | |
2381 | ||
2382 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
2383 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
2384 | and copy functionality. */ | |
154a1ee5 TG |
2385 | |
2386 | bfd_boolean | |
2387 | bfd_mach_o_build_commands (bfd *abfd) | |
2388 | { | |
046b007d | 2389 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bbd56171 IS |
2390 | unsigned wide = mach_o_wide_p (&mdata->header); |
2391 | int segcmd_idx = -1; | |
2392 | int symtab_idx = -1; | |
2393 | int dysymtab_idx = -1; | |
2394 | unsigned long base_offset = 0; | |
154a1ee5 | 2395 | |
7f307238 | 2396 | /* Return now if commands are already present. */ |
154a1ee5 TG |
2397 | if (mdata->header.ncmds) |
2398 | return FALSE; | |
2399 | ||
7f307238 | 2400 | /* Fill in the file type, if not already set. */ |
154a1ee5 | 2401 | |
7f307238 | 2402 | if (mdata->header.filetype == 0) |
154a1ee5 | 2403 | { |
7f307238 IS |
2404 | if (abfd->flags & EXEC_P) |
2405 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; | |
2406 | else if (abfd->flags & DYNAMIC) | |
2407 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; | |
2408 | else | |
2409 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; | |
154a1ee5 | 2410 | } |
7f307238 IS |
2411 | |
2412 | /* If hasn't already been done, flatten sections list, and sort | |
2413 | if/when required. Must be done before the symbol table is adjusted, | |
2414 | since that depends on properly numbered sections. */ | |
2415 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
2416 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
2417 | return FALSE; | |
2418 | ||
2419 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
2420 | partition out any indirect symbols. */ | |
b22161d6 | 2421 | if (!bfd_mach_o_mangle_symbols (abfd)) |
7f307238 IS |
2422 | return FALSE; |
2423 | ||
bbd56171 IS |
2424 | /* Very simple command set (only really applicable to MH_OBJECTs): |
2425 | All the commands are optional - present only when there is suitable data. | |
2426 | (i.e. it is valid to have an empty file) | |
2427 | ||
2428 | a command (segment) to contain all the sections, | |
2429 | command for the symbol table, | |
68ffbac6 | 2430 | a command for the dysymtab. |
bbd56171 IS |
2431 | |
2432 | ??? maybe we should assert that this is an MH_OBJECT? */ | |
2433 | ||
7f307238 | 2434 | if (mdata->nsects > 0) |
154a1ee5 | 2435 | { |
bbd56171 | 2436 | segcmd_idx = 0; |
7f307238 | 2437 | mdata->header.ncmds = 1; |
154a1ee5 | 2438 | } |
154a1ee5 | 2439 | |
7f307238 | 2440 | if (bfd_get_symcount (abfd) > 0) |
bbd56171 IS |
2441 | { |
2442 | mdata->header.ncmds++; | |
2443 | symtab_idx = segcmd_idx + 1; /* 0 if the seg command is absent. */ | |
2444 | } | |
c2f09c75 | 2445 | |
bbd56171 IS |
2446 | /* FIXME: |
2447 | This is a rather crude test for whether we should build a dysymtab. */ | |
2448 | if (bfd_mach_o_should_emit_dysymtab () | |
2449 | && bfd_get_symcount (abfd)) | |
2450 | { | |
2451 | mdata->header.ncmds++; | |
2452 | /* If there should be a case where a dysymtab could be emitted without | |
2453 | a symtab (seems improbable), this would need amending. */ | |
2454 | dysymtab_idx = symtab_idx + 1; | |
2455 | } | |
154a1ee5 | 2456 | |
bbd56171 IS |
2457 | if (wide) |
2458 | base_offset = BFD_MACH_O_HEADER_64_SIZE; | |
2459 | else | |
2460 | base_offset = BFD_MACH_O_HEADER_SIZE; | |
c2f09c75 | 2461 | |
bbd56171 IS |
2462 | /* Well, we must have a header, at least. */ |
2463 | mdata->filelen = base_offset; | |
f1bde64c | 2464 | |
bbd56171 | 2465 | /* A bit unusual, but no content is valid; |
7f307238 IS |
2466 | as -n empty.s -o empty.o */ |
2467 | if (mdata->header.ncmds == 0) | |
2468 | return TRUE; | |
f1bde64c | 2469 | |
7f307238 IS |
2470 | mdata->commands = bfd_zalloc (abfd, mdata->header.ncmds |
2471 | * sizeof (bfd_mach_o_load_command)); | |
2472 | if (mdata->commands == NULL) | |
2473 | return FALSE; | |
2474 | ||
bbd56171 | 2475 | if (segcmd_idx >= 0) |
68ffbac6 | 2476 | { |
bbd56171 IS |
2477 | bfd_mach_o_load_command *cmd = &mdata->commands[segcmd_idx]; |
2478 | bfd_mach_o_segment_command *seg = &cmd->command.segment; | |
7f307238 | 2479 | |
707e555b TG |
2480 | /* Count the segctions in the special blank segment used |
2481 | for MH_OBJECT. */ | |
7f307238 IS |
2482 | seg->nsects = bfd_mach_o_count_sections_for_seg (NULL, mdata); |
2483 | if (seg->nsects == (unsigned long) -1) | |
2484 | return FALSE; | |
2485 | ||
2486 | /* Init segment command. */ | |
bbd56171 | 2487 | cmd->offset = base_offset; |
7f307238 IS |
2488 | if (wide) |
2489 | { | |
2490 | cmd->type = BFD_MACH_O_LC_SEGMENT_64; | |
7f307238 IS |
2491 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE |
2492 | + BFD_MACH_O_SECTION_64_SIZE * seg->nsects; | |
2493 | } | |
92bc0e80 | 2494 | else |
7f307238 IS |
2495 | { |
2496 | cmd->type = BFD_MACH_O_LC_SEGMENT; | |
7f307238 IS |
2497 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE |
2498 | + BFD_MACH_O_SECTION_SIZE * seg->nsects; | |
2499 | } | |
bbd56171 | 2500 | |
7f307238 IS |
2501 | cmd->type_required = FALSE; |
2502 | mdata->header.sizeofcmds = cmd->len; | |
bbd56171 | 2503 | mdata->filelen += cmd->len; |
7f307238 | 2504 | } |
f1bde64c | 2505 | |
bbd56171 | 2506 | if (symtab_idx >= 0) |
7f307238 IS |
2507 | { |
2508 | /* Init symtab command. */ | |
bbd56171 | 2509 | bfd_mach_o_load_command *cmd = &mdata->commands[symtab_idx]; |
68ffbac6 | 2510 | |
bbd56171 IS |
2511 | cmd->type = BFD_MACH_O_LC_SYMTAB; |
2512 | cmd->offset = base_offset; | |
2513 | if (segcmd_idx >= 0) | |
2514 | cmd->offset += mdata->commands[segcmd_idx].len; | |
2515 | ||
2516 | cmd->len = sizeof (struct mach_o_symtab_command_external) | |
2517 | + BFD_MACH_O_LC_SIZE; | |
2518 | cmd->type_required = FALSE; | |
2519 | mdata->header.sizeofcmds += cmd->len; | |
2520 | mdata->filelen += cmd->len; | |
7f307238 | 2521 | } |
154a1ee5 | 2522 | |
bbd56171 IS |
2523 | /* If required, setup symtab command, see comment above about the quality |
2524 | of this test. */ | |
2525 | if (dysymtab_idx >= 0) | |
7f307238 | 2526 | { |
bbd56171 IS |
2527 | bfd_mach_o_load_command *cmd = &mdata->commands[dysymtab_idx]; |
2528 | ||
7f307238 | 2529 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; |
bbd56171 | 2530 | if (symtab_idx >= 0) |
68ffbac6 | 2531 | cmd->offset = mdata->commands[symtab_idx].offset |
bbd56171 IS |
2532 | + mdata->commands[symtab_idx].len; |
2533 | else if (segcmd_idx >= 0) | |
68ffbac6 | 2534 | cmd->offset = mdata->commands[segcmd_idx].offset |
bbd56171 IS |
2535 | + mdata->commands[segcmd_idx].len; |
2536 | else | |
2537 | cmd->offset = base_offset; | |
2538 | ||
7f307238 | 2539 | cmd->type_required = FALSE; |
bbd56171 IS |
2540 | cmd->len = sizeof (struct mach_o_dysymtab_command_external) |
2541 | + BFD_MACH_O_LC_SIZE; | |
7f307238 IS |
2542 | |
2543 | mdata->header.sizeofcmds += cmd->len; | |
2544 | mdata->filelen += cmd->len; | |
154a1ee5 | 2545 | } |
154a1ee5 | 2546 | |
7f307238 IS |
2547 | /* So, now we have sized the commands and the filelen set to that. |
2548 | Now we can build the segment command and set the section file offsets. */ | |
bbd56171 | 2549 | if (segcmd_idx >= 0 |
68ffbac6 | 2550 | && ! bfd_mach_o_build_seg_command |
bbd56171 | 2551 | (NULL, mdata, &mdata->commands[segcmd_idx].command.segment)) |
7f307238 IS |
2552 | return FALSE; |
2553 | ||
2554 | /* If we're doing a dysymtab, cmd points to its load command. */ | |
bbd56171 | 2555 | if (dysymtab_idx >= 0 |
68ffbac6 | 2556 | && ! bfd_mach_o_build_dysymtab_command (abfd, mdata, |
bbd56171 | 2557 | &mdata->commands[dysymtab_idx])) |
7f307238 IS |
2558 | return FALSE; |
2559 | ||
2560 | /* The symtab command is filled in when the symtab is written. */ | |
154a1ee5 TG |
2561 | return TRUE; |
2562 | } | |
2563 | ||
2564 | /* Set the contents of a section. */ | |
2565 | ||
2566 | bfd_boolean | |
2567 | bfd_mach_o_set_section_contents (bfd *abfd, | |
2568 | asection *section, | |
2569 | const void * location, | |
2570 | file_ptr offset, | |
2571 | bfd_size_type count) | |
2572 | { | |
2573 | file_ptr pos; | |
2574 | ||
7f307238 IS |
2575 | /* Trying to write the first section contents will trigger the creation of |
2576 | the load commands if they are not already present. */ | |
154a1ee5 TG |
2577 | if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd)) |
2578 | return FALSE; | |
2579 | ||
2580 | if (count == 0) | |
2581 | return TRUE; | |
2582 | ||
2583 | pos = section->filepos + offset; | |
2584 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
2585 | || bfd_bwrite (location, count, abfd) != count) | |
2586 | return FALSE; | |
2587 | ||
2588 | return TRUE; | |
2589 | } | |
2590 | ||
2591 | int | |
116c20d2 | 2592 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 2593 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
2594 | { |
2595 | return 0; | |
2596 | } | |
2597 | ||
2598 | /* Make an empty symbol. This is required only because | |
2599 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
2600 | ||
154a1ee5 | 2601 | asymbol * |
116c20d2 | 2602 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 2603 | { |
d3ce72d0 NC |
2604 | asymbol *new_symbol; |
2605 | ||
2606 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
2607 | if (new_symbol == NULL) | |
2608 | return new_symbol; | |
2609 | new_symbol->the_bfd = abfd; | |
b22161d6 | 2610 | new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET; |
d3ce72d0 | 2611 | return new_symbol; |
3af9a47b NC |
2612 | } |
2613 | ||
154a1ee5 | 2614 | static bfd_boolean |
116c20d2 | 2615 | bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header) |
3af9a47b | 2616 | { |
46d1c23b | 2617 | struct mach_o_header_external raw; |
1e8a024a | 2618 | unsigned int size; |
edeb6e24 | 2619 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 2620 | |
1e8a024a | 2621 | /* Just read the magic number. */ |
c2f09c75 | 2622 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 2623 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 2624 | return FALSE; |
3af9a47b | 2625 | |
46d1c23b | 2626 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
2627 | { |
2628 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 2629 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 2630 | header->version = 1; |
3af9a47b NC |
2631 | get32 = bfd_getb32; |
2632 | } | |
46d1c23b | 2633 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 2634 | { |
a95a4550 | 2635 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 2636 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
2637 | header->version = 1; |
2638 | get32 = bfd_getl32; | |
2639 | } | |
46d1c23b | 2640 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
2641 | { |
2642 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 2643 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
2644 | header->version = 2; |
2645 | get32 = bfd_getb32; | |
2646 | } | |
46d1c23b | 2647 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
2648 | { |
2649 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 2650 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 2651 | header->version = 2; |
3af9a47b NC |
2652 | get32 = bfd_getl32; |
2653 | } | |
2654 | else | |
2655 | { | |
2656 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 2657 | return FALSE; |
3af9a47b | 2658 | } |
a95a4550 | 2659 | |
1e8a024a | 2660 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 2661 | size = mach_o_wide_p (header) ? |
154a1ee5 | 2662 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 2663 | |
c2f09c75 | 2664 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 2665 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 2666 | return FALSE; |
1e8a024a | 2667 | |
46d1c23b TG |
2668 | header->cputype = (*get32) (raw.cputype); |
2669 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
2670 | header->filetype = (*get32) (raw.filetype); | |
2671 | header->ncmds = (*get32) (raw.ncmds); | |
2672 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
2673 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 2674 | |
c2f09c75 | 2675 | if (mach_o_wide_p (header)) |
46d1c23b | 2676 | header->reserved = (*get32) (raw.reserved); |
facf03f2 TG |
2677 | else |
2678 | header->reserved = 0; | |
1e8a024a | 2679 | |
154a1ee5 | 2680 | return TRUE; |
3af9a47b NC |
2681 | } |
2682 | ||
f1bde64c TG |
2683 | bfd_boolean |
2684 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
2685 | { | |
2686 | bfd_mach_o_section *s; | |
a4551119 | 2687 | unsigned bfdalign = bfd_get_section_alignment (abfd, sec); |
f1bde64c TG |
2688 | |
2689 | s = bfd_mach_o_get_mach_o_section (sec); | |
2690 | if (s == NULL) | |
2691 | { | |
2692 | flagword bfd_flags; | |
a4551119 | 2693 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
2694 | |
2695 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
2696 | if (s == NULL) | |
2697 | return FALSE; | |
2698 | sec->used_by_bfd = s; | |
2699 | s->bfdsection = sec; | |
2700 | ||
a4551119 TG |
2701 | /* Create the Darwin seg/sect name pair from the bfd name. |
2702 | If this is a canonical name for which a specific paiting exists | |
2703 | there will also be defined flags, type, attribute and alignment | |
2704 | values. */ | |
2705 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
2706 | if (xlat != NULL) | |
2707 | { | |
2708 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
68ffbac6 | 2709 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign |
a4551119 | 2710 | : bfdalign; |
a253d456 | 2711 | (void) bfd_set_section_alignment (abfd, sec, s->align); |
a4551119 TG |
2712 | bfd_flags = bfd_get_section_flags (abfd, sec); |
2713 | if (bfd_flags == SEC_NO_FLAGS) | |
2714 | bfd_set_section_flags (abfd, sec, xlat->bfd_flags); | |
2715 | } | |
f1bde64c | 2716 | else |
a4551119 TG |
2717 | /* Create default flags. */ |
2718 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
2719 | } |
2720 | ||
2721 | return _bfd_generic_new_section_hook (abfd, sec); | |
2722 | } | |
2723 | ||
2724 | static void | |
2725 | bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec, | |
2726 | unsigned long prot) | |
3af9a47b | 2727 | { |
117ed4f8 | 2728 | flagword flags; |
f1bde64c | 2729 | bfd_mach_o_section *section; |
3af9a47b | 2730 | |
f1bde64c TG |
2731 | flags = bfd_get_section_flags (abfd, sec); |
2732 | section = bfd_mach_o_get_mach_o_section (sec); | |
3af9a47b | 2733 | |
a4551119 TG |
2734 | /* TODO: see if we should use the xlat system for doing this by |
2735 | preference and fall back to this for unknown sections. */ | |
2736 | ||
8462aec7 | 2737 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 2738 | { |
8462aec7 TG |
2739 | /* Try to guess flags. */ |
2740 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
2741 | flags = SEC_DEBUGGING; | |
2742 | else | |
2743 | { | |
2744 | flags = SEC_ALLOC; | |
2745 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2746 | != BFD_MACH_O_S_ZEROFILL) | |
2747 | { | |
2748 | flags |= SEC_LOAD; | |
2749 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
2750 | flags |= SEC_CODE; | |
2751 | if (prot & BFD_MACH_O_PROT_WRITE) | |
2752 | flags |= SEC_DATA; | |
2753 | else if (prot & BFD_MACH_O_PROT_READ) | |
2754 | flags |= SEC_READONLY; | |
2755 | } | |
2756 | } | |
ef17cb22 | 2757 | } |
15e1c58a TG |
2758 | else |
2759 | { | |
8462aec7 TG |
2760 | if ((flags & SEC_DEBUGGING) == 0) |
2761 | flags |= SEC_ALLOC; | |
15e1c58a | 2762 | } |
8462aec7 TG |
2763 | |
2764 | if (section->offset != 0) | |
2765 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
2766 | if (section->nreloc != 0) |
2767 | flags |= SEC_RELOC; | |
2768 | ||
f1bde64c TG |
2769 | bfd_set_section_flags (abfd, sec, flags); |
2770 | ||
2771 | sec->vma = section->addr; | |
2772 | sec->lma = section->addr; | |
2773 | sec->size = section->size; | |
2774 | sec->filepos = section->offset; | |
2775 | sec->alignment_power = section->align; | |
2776 | sec->segment_mark = 0; | |
2777 | sec->reloc_count = section->nreloc; | |
2778 | sec->rel_filepos = section->reloff; | |
2779 | } | |
2780 | ||
2781 | static asection * | |
2782 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
2783 | const unsigned char *segname, | |
2784 | const unsigned char *sectname) | |
2785 | { | |
2786 | const char *sname; | |
2787 | flagword flags; | |
a95a4550 | 2788 | |
f1bde64c TG |
2789 | bfd_mach_o_convert_section_name_to_bfd |
2790 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
2791 | if (sname == NULL) | |
2792 | return NULL; | |
3af9a47b | 2793 | |
f1bde64c | 2794 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
2795 | } |
2796 | ||
f1bde64c | 2797 | static asection * |
ab273af8 | 2798 | bfd_mach_o_read_section_32 (bfd *abfd, |
ab273af8 TG |
2799 | unsigned int offset, |
2800 | unsigned long prot) | |
3af9a47b | 2801 | { |
46d1c23b | 2802 | struct mach_o_section_32_external raw; |
f1bde64c TG |
2803 | asection *sec; |
2804 | bfd_mach_o_section *section; | |
3af9a47b | 2805 | |
c2f09c75 | 2806 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
46d1c23b | 2807 | || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
c2f09c75 | 2808 | != BFD_MACH_O_SECTION_SIZE)) |
f1bde64c | 2809 | return NULL; |
a95a4550 | 2810 | |
5a5cbf72 | 2811 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
2812 | if (sec == NULL) |
2813 | return NULL; | |
2814 | ||
2815 | section = bfd_mach_o_get_mach_o_section (sec); | |
2816 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
2817 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
2818 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 2819 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
2820 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
2821 | section->size = bfd_h_get_32 (abfd, raw.size); | |
2822 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
2823 | section->align = bfd_h_get_32 (abfd, raw.align); | |
2824 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); | |
2825 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
2826 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
2827 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
2828 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 2829 | section->reserved3 = 0; |
1e8a024a | 2830 | |
f1bde64c | 2831 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
1e8a024a | 2832 | |
f1bde64c | 2833 | return sec; |
1e8a024a TG |
2834 | } |
2835 | ||
f1bde64c | 2836 | static asection * |
ab273af8 | 2837 | bfd_mach_o_read_section_64 (bfd *abfd, |
ab273af8 TG |
2838 | unsigned int offset, |
2839 | unsigned long prot) | |
1e8a024a | 2840 | { |
46d1c23b | 2841 | struct mach_o_section_64_external raw; |
f1bde64c TG |
2842 | asection *sec; |
2843 | bfd_mach_o_section *section; | |
1e8a024a | 2844 | |
c2f09c75 | 2845 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
46d1c23b | 2846 | || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
c2f09c75 | 2847 | != BFD_MACH_O_SECTION_64_SIZE)) |
f1bde64c TG |
2848 | return NULL; |
2849 | ||
5a5cbf72 | 2850 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
2851 | if (sec == NULL) |
2852 | return NULL; | |
1e8a024a | 2853 | |
f1bde64c TG |
2854 | section = bfd_mach_o_get_mach_o_section (sec); |
2855 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
2856 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
2857 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 2858 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
2859 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
2860 | section->size = bfd_h_get_64 (abfd, raw.size); | |
2861 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
2862 | section->align = bfd_h_get_32 (abfd, raw.align); | |
2863 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); | |
2864 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
2865 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
2866 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
2867 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
2868 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 2869 | |
f1bde64c | 2870 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
3af9a47b | 2871 | |
f1bde64c | 2872 | return sec; |
3af9a47b NC |
2873 | } |
2874 | ||
f1bde64c | 2875 | static asection * |
ab273af8 | 2876 | bfd_mach_o_read_section (bfd *abfd, |
ab273af8 TG |
2877 | unsigned int offset, |
2878 | unsigned long prot, | |
2879 | unsigned int wide) | |
1e8a024a TG |
2880 | { |
2881 | if (wide) | |
f1bde64c | 2882 | return bfd_mach_o_read_section_64 (abfd, offset, prot); |
1e8a024a | 2883 | else |
f1bde64c | 2884 | return bfd_mach_o_read_section_32 (abfd, offset, prot); |
1e8a024a TG |
2885 | } |
2886 | ||
afbb9e17 | 2887 | static bfd_boolean |
ab273af8 TG |
2888 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
2889 | bfd_mach_o_symtab_command *sym, | |
2890 | bfd_mach_o_asymbol *s, | |
2891 | unsigned long i) | |
3af9a47b | 2892 | { |
046b007d | 2893 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 2894 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
2895 | unsigned int symwidth = |
2896 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 2897 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 2898 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
2899 | unsigned char type = -1; |
2900 | unsigned char section = -1; | |
2901 | short desc = -1; | |
1e8a024a | 2902 | symvalue value = -1; |
3af9a47b NC |
2903 | unsigned long stroff = -1; |
2904 | unsigned int symtype = -1; | |
2905 | ||
2906 | BFD_ASSERT (sym->strtab != NULL); | |
2907 | ||
c2f09c75 | 2908 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 2909 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 2910 | { |
46d1c23b TG |
2911 | (*_bfd_error_handler) |
2912 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"), | |
2913 | symwidth, (unsigned long) symoff); | |
afbb9e17 | 2914 | return FALSE; |
3af9a47b NC |
2915 | } |
2916 | ||
46d1c23b TG |
2917 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
2918 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 2919 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
2920 | section = bfd_h_get_8 (abfd, raw.n_sect); |
2921 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 2922 | if (wide) |
46d1c23b | 2923 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 2924 | else |
46d1c23b | 2925 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
2926 | |
2927 | if (stroff >= sym->strsize) | |
2928 | { | |
46d1c23b TG |
2929 | (*_bfd_error_handler) |
2930 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"), | |
2931 | (unsigned long) stroff, | |
2932 | (unsigned long) sym->strsize); | |
afbb9e17 | 2933 | return FALSE; |
3af9a47b NC |
2934 | } |
2935 | ||
92bc0e80 TG |
2936 | s->symbol.the_bfd = abfd; |
2937 | s->symbol.name = sym->strtab + stroff; | |
2938 | s->symbol.value = value; | |
2939 | s->symbol.flags = 0x0; | |
b22161d6 | 2940 | s->symbol.udata.i = i; |
92bc0e80 TG |
2941 | s->n_type = type; |
2942 | s->n_sect = section; | |
2943 | s->n_desc = desc; | |
3af9a47b NC |
2944 | |
2945 | if (type & BFD_MACH_O_N_STAB) | |
2946 | { | |
92bc0e80 TG |
2947 | s->symbol.flags |= BSF_DEBUGGING; |
2948 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
2949 | switch (type) |
2950 | { | |
2951 | case N_FUN: | |
2952 | case N_STSYM: | |
2953 | case N_LCSYM: | |
2954 | case N_BNSYM: | |
2955 | case N_SLINE: | |
2956 | case N_ENSYM: | |
2957 | case N_ECOMM: | |
2958 | case N_ECOML: | |
2959 | case N_GSYM: | |
2960 | if ((section > 0) && (section <= mdata->nsects)) | |
2961 | { | |
92bc0e80 TG |
2962 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
2963 | s->symbol.value = | |
2964 | s->symbol.value - mdata->sections[section - 1]->addr; | |
15e1c58a TG |
2965 | } |
2966 | break; | |
2967 | } | |
3af9a47b NC |
2968 | } |
2969 | else | |
2970 | { | |
b22161d6 | 2971 | if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)) |
92bc0e80 | 2972 | s->symbol.flags |= BSF_GLOBAL; |
b22161d6 | 2973 | else |
92bc0e80 | 2974 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
2975 | |
2976 | switch (symtype) | |
2977 | { | |
2978 | case BFD_MACH_O_N_UNDF: | |
c2f09c75 | 2979 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
92bc0e80 | 2980 | && s->symbol.value != 0) |
c2f09c75 TG |
2981 | { |
2982 | /* A common symbol. */ | |
92bc0e80 TG |
2983 | s->symbol.section = bfd_com_section_ptr; |
2984 | s->symbol.flags = BSF_NO_FLAGS; | |
c2f09c75 TG |
2985 | } |
2986 | else | |
92bc0e80 TG |
2987 | { |
2988 | s->symbol.section = bfd_und_section_ptr; | |
2989 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
2990 | s->symbol.flags |= BSF_WEAK; | |
2991 | } | |
3af9a47b NC |
2992 | break; |
2993 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 2994 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
2995 | break; |
2996 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 2997 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
2998 | break; |
2999 | case BFD_MACH_O_N_SECT: | |
3000 | if ((section > 0) && (section <= mdata->nsects)) | |
3001 | { | |
92bc0e80 TG |
3002 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3003 | s->symbol.value = | |
3004 | s->symbol.value - mdata->sections[section - 1]->addr; | |
3af9a47b NC |
3005 | } |
3006 | else | |
3007 | { | |
3008 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
3009 | if (section != 0) | |
3010 | { | |
4a97a0e5 AM |
3011 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
3012 | "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"), | |
3013 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 3014 | } |
92bc0e80 | 3015 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3016 | } |
3017 | break; | |
3018 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
3019 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
3020 | won't be followed by the referenced one. This looks harmless | |
3021 | unless we start using the linker. */ | |
3022 | s->symbol.flags |= BSF_INDIRECT; | |
3023 | s->symbol.section = bfd_ind_section_ptr; | |
3024 | s->symbol.value = 0; | |
3af9a47b NC |
3025 | break; |
3026 | default: | |
4a97a0e5 AM |
3027 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
3028 | "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"), | |
3029 | s->symbol.name, symtype); | |
92bc0e80 | 3030 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3031 | break; |
3032 | } | |
3033 | } | |
3034 | ||
afbb9e17 | 3035 | return TRUE; |
3af9a47b NC |
3036 | } |
3037 | ||
c5012cd8 | 3038 | bfd_boolean |
ab273af8 | 3039 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 3040 | { |
046b007d TG |
3041 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3042 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3043 | ||
3044 | /* Fail if there is no symtab. */ | |
3045 | if (sym == NULL) | |
afbb9e17 | 3046 | return FALSE; |
046b007d TG |
3047 | |
3048 | /* Success if already loaded. */ | |
3049 | if (sym->strtab) | |
afbb9e17 | 3050 | return TRUE; |
3af9a47b NC |
3051 | |
3052 | if (abfd->flags & BFD_IN_MEMORY) | |
3053 | { | |
3054 | struct bfd_in_memory *b; | |
3055 | ||
3056 | b = (struct bfd_in_memory *) abfd->iostream; | |
3057 | ||
3058 | if ((sym->stroff + sym->strsize) > b->size) | |
3059 | { | |
3060 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 3061 | return FALSE; |
3af9a47b | 3062 | } |
f075ee0c | 3063 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 3064 | } |
046b007d | 3065 | else |
3af9a47b | 3066 | { |
046b007d TG |
3067 | sym->strtab = bfd_alloc (abfd, sym->strsize); |
3068 | if (sym->strtab == NULL) | |
afbb9e17 | 3069 | return FALSE; |
046b007d TG |
3070 | |
3071 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 | |
afbb9e17 | 3072 | || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize) |
046b007d TG |
3073 | { |
3074 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 3075 | return FALSE; |
046b007d | 3076 | } |
3af9a47b NC |
3077 | } |
3078 | ||
afbb9e17 | 3079 | return TRUE; |
3af9a47b NC |
3080 | } |
3081 | ||
c5012cd8 | 3082 | bfd_boolean |
ab273af8 | 3083 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 3084 | { |
046b007d TG |
3085 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3086 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 3087 | unsigned long i; |
3af9a47b | 3088 | |
092d27ff TG |
3089 | if (sym == NULL || sym->symbols) |
3090 | { | |
3091 | /* Return now if there are no symbols or if already loaded. */ | |
afbb9e17 | 3092 | return TRUE; |
092d27ff | 3093 | } |
046b007d | 3094 | |
92bc0e80 | 3095 | sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol)); |
3af9a47b NC |
3096 | |
3097 | if (sym->symbols == NULL) | |
3098 | { | |
4a97a0e5 | 3099 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols")); |
afbb9e17 | 3100 | return FALSE; |
3af9a47b | 3101 | } |
a95a4550 | 3102 | |
afbb9e17 TG |
3103 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
3104 | return FALSE; | |
3af9a47b NC |
3105 | |
3106 | for (i = 0; i < sym->nsyms; i++) | |
3107 | { | |
afbb9e17 TG |
3108 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
3109 | return FALSE; | |
3af9a47b | 3110 | } |
a95a4550 | 3111 | |
afbb9e17 | 3112 | return TRUE; |
3af9a47b NC |
3113 | } |
3114 | ||
3115 | static const char * | |
116c20d2 | 3116 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
3117 | { |
3118 | switch ((int) flavour) | |
3119 | { | |
15e1c58a TG |
3120 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
3121 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
3122 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
3123 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
3124 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
3125 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
3126 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
3127 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
3128 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
3129 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
3130 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
3131 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 3132 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
3133 | default: return "UNKNOWN"; |
3134 | } | |
3135 | } | |
3136 | ||
3137 | static const char * | |
116c20d2 | 3138 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
3139 | { |
3140 | switch ((int) flavour) | |
3141 | { | |
b32e07d7 TG |
3142 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
3143 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
3144 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
3145 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
3146 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
3147 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
3148 | default: return "UNKNOWN"; |
3149 | } | |
3150 | } | |
3151 | ||
3152 | static int | |
ab273af8 | 3153 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
3154 | { |
3155 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 3156 | struct mach_o_str_command_external raw; |
3af9a47b | 3157 | unsigned int nameoff; |
3af9a47b | 3158 | |
46d1c23b TG |
3159 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3160 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b NC |
3161 | return -1; |
3162 | ||
46d1c23b | 3163 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3af9a47b NC |
3164 | |
3165 | cmd->name_offset = command->offset + nameoff; | |
3166 | cmd->name_len = command->len - nameoff; | |
b32e07d7 TG |
3167 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
3168 | if (cmd->name_str == NULL) | |
3af9a47b | 3169 | return -1; |
b32e07d7 TG |
3170 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
3171 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) | |
3af9a47b | 3172 | return -1; |
3af9a47b NC |
3173 | return 0; |
3174 | } | |
3175 | ||
3176 | static int | |
ab273af8 | 3177 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
3178 | { |
3179 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
46d1c23b | 3180 | struct mach_o_dylib_command_external raw; |
3af9a47b | 3181 | unsigned int nameoff; |
3af9a47b | 3182 | |
046b007d TG |
3183 | switch (command->type) |
3184 | { | |
3185 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 3186 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
046b007d | 3187 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 3188 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 3189 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 3190 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
3191 | break; |
3192 | default: | |
b32e07d7 TG |
3193 | BFD_FAIL (); |
3194 | return -1; | |
046b007d | 3195 | } |
3af9a47b | 3196 | |
46d1c23b TG |
3197 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3198 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b NC |
3199 | return -1; |
3200 | ||
46d1c23b TG |
3201 | nameoff = bfd_h_get_32 (abfd, raw.name); |
3202 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); | |
3203 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
3204 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
3205 | |
3206 | cmd->name_offset = command->offset + nameoff; | |
3207 | cmd->name_len = command->len - nameoff; | |
b32e07d7 TG |
3208 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
3209 | if (cmd->name_str == NULL) | |
3af9a47b | 3210 | return -1; |
b32e07d7 TG |
3211 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
3212 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) | |
3af9a47b | 3213 | return -1; |
3af9a47b NC |
3214 | return 0; |
3215 | } | |
3216 | ||
3217 | static int | |
7a79c514 TG |
3218 | bfd_mach_o_read_prebound_dylib (bfd *abfd, |
3219 | bfd_mach_o_load_command *command) | |
3af9a47b | 3220 | { |
7a79c514 TG |
3221 | bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; |
3222 | struct mach_o_prebound_dylib_command_external raw; | |
3223 | unsigned int nameoff; | |
3224 | unsigned int modoff; | |
3225 | unsigned int str_len; | |
3226 | unsigned char *str; | |
3227 | ||
3228 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3229 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3230 | return -1; | |
3231 | ||
3232 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3233 | modoff = bfd_h_get_32 (abfd, raw.linked_modules); | |
3234 | if (nameoff > command->len || modoff > command->len) | |
3235 | return -1; | |
3236 | ||
3237 | str_len = command->len - sizeof (raw); | |
3238 | str = bfd_alloc (abfd, str_len); | |
3239 | if (str == NULL) | |
3240 | return -1; | |
3241 | if (bfd_bread (str, str_len, abfd) != str_len) | |
3242 | return -1; | |
3243 | ||
3244 | cmd->name_offset = command->offset + nameoff; | |
3245 | cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules); | |
3246 | cmd->linked_modules_offset = command->offset + modoff; | |
3247 | ||
3248 | cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
3249 | cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
3250 | return 0; | |
3251 | } | |
3252 | ||
3253 | static int | |
3254 | bfd_mach_o_read_prebind_cksum (bfd *abfd, | |
3255 | bfd_mach_o_load_command *command) | |
3256 | { | |
3257 | bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum; | |
3258 | struct mach_o_prebind_cksum_command_external raw; | |
3af9a47b | 3259 | |
7a79c514 TG |
3260 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3261 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3262 | return -1; | |
3263 | ||
3264 | cmd->cksum = bfd_get_32 (abfd, raw.cksum); | |
3265 | return 0; | |
3266 | } | |
3267 | ||
3268 | static int | |
3269 | bfd_mach_o_read_twolevel_hints (bfd *abfd, | |
3270 | bfd_mach_o_load_command *command) | |
3271 | { | |
3272 | bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints; | |
3273 | struct mach_o_twolevel_hints_command_external raw; | |
3274 | ||
3275 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3276 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3277 | return -1; | |
3278 | ||
3279 | cmd->offset = bfd_get_32 (abfd, raw.offset); | |
3280 | cmd->nhints = bfd_get_32 (abfd, raw.nhints); | |
3af9a47b NC |
3281 | return 0; |
3282 | } | |
3283 | ||
9f4a5bd1 TG |
3284 | static int |
3285 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) | |
3286 | { | |
3287 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
3288 | struct mach_o_fvmlib_command_external raw; | |
3289 | unsigned int nameoff; | |
3290 | ||
3291 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3292 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3293 | return -1; | |
3294 | ||
3295 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3296 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); | |
3297 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
3298 | ||
3299 | fvm->name_offset = command->offset + nameoff; | |
3300 | fvm->name_len = command->len - nameoff; | |
3301 | fvm->name_str = bfd_alloc (abfd, fvm->name_len); | |
3302 | if (fvm->name_str == NULL) | |
3303 | return -1; | |
3304 | if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0 | |
3305 | || bfd_bread (fvm->name_str, fvm->name_len, abfd) != fvm->name_len) | |
3306 | return -1; | |
3307 | return 0; | |
3308 | } | |
3309 | ||
3af9a47b | 3310 | static int |
ab273af8 | 3311 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3312 | { |
b32e07d7 | 3313 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 3314 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 3315 | unsigned int offset; |
3af9a47b NC |
3316 | unsigned int nflavours; |
3317 | unsigned int i; | |
3318 | ||
3319 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
3320 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
3321 | ||
b32e07d7 | 3322 | /* Count the number of threads. */ |
3af9a47b NC |
3323 | offset = 8; |
3324 | nflavours = 0; | |
3325 | while (offset != command->len) | |
3326 | { | |
46d1c23b TG |
3327 | struct mach_o_thread_command_external raw; |
3328 | ||
3af9a47b NC |
3329 | if (offset >= command->len) |
3330 | return -1; | |
3331 | ||
c2f09c75 | 3332 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 3333 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
3af9a47b NC |
3334 | return -1; |
3335 | ||
46d1c23b | 3336 | offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4; |
3af9a47b NC |
3337 | nflavours++; |
3338 | } | |
3339 | ||
b32e07d7 TG |
3340 | /* Allocate threads. */ |
3341 | cmd->flavours = bfd_alloc | |
3342 | (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)); | |
3af9a47b NC |
3343 | if (cmd->flavours == NULL) |
3344 | return -1; | |
3345 | cmd->nflavours = nflavours; | |
3346 | ||
3347 | offset = 8; | |
3348 | nflavours = 0; | |
3349 | while (offset != command->len) | |
3350 | { | |
46d1c23b TG |
3351 | struct mach_o_thread_command_external raw; |
3352 | ||
3af9a47b NC |
3353 | if (offset >= command->len) |
3354 | return -1; | |
3355 | ||
3356 | if (nflavours >= cmd->nflavours) | |
3357 | return -1; | |
3358 | ||
c2f09c75 | 3359 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 3360 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
3af9a47b NC |
3361 | return -1; |
3362 | ||
46d1c23b TG |
3363 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
3364 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
3365 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
3366 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
3367 | nflavours++; |
3368 | } | |
3369 | ||
3370 | for (i = 0; i < nflavours; i++) | |
3371 | { | |
3372 | asection *bfdsec; | |
3373 | unsigned int snamelen; | |
3374 | char *sname; | |
3375 | const char *flavourstr; | |
3376 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
3377 | unsigned int j = 0; |
3378 | ||
3af9a47b NC |
3379 | switch (mdata->header.cputype) |
3380 | { | |
3381 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 3382 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
707e555b TG |
3383 | flavourstr = |
3384 | bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
3385 | break; |
3386 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 3387 | case BFD_MACH_O_CPU_TYPE_X86_64: |
707e555b TG |
3388 | flavourstr = |
3389 | bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
3390 | break; |
3391 | default: | |
3392 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
3393 | break; | |
3394 | } | |
a95a4550 | 3395 | |
3af9a47b | 3396 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 3397 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
3398 | if (sname == NULL) |
3399 | return -1; | |
3400 | ||
3401 | for (;;) | |
3402 | { | |
a95a4550 AM |
3403 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
3404 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 3405 | break; |
a95a4550 | 3406 | j++; |
3af9a47b NC |
3407 | } |
3408 | ||
117ed4f8 | 3409 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 3410 | |
3af9a47b NC |
3411 | bfdsec->vma = 0; |
3412 | bfdsec->lma = 0; | |
eea6121a | 3413 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
3414 | bfdsec->filepos = cmd->flavours[i].offset; |
3415 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
3416 | |
3417 | cmd->section = bfdsec; | |
3418 | } | |
3419 | ||
3420 | return 0; | |
3421 | } | |
3422 | ||
a95a4550 | 3423 | static int |
ab273af8 | 3424 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3425 | { |
046b007d | 3426 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 3427 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
3428 | |
3429 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
3430 | ||
46d1c23b TG |
3431 | { |
3432 | struct mach_o_dysymtab_command_external raw; | |
3433 | ||
3434 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3435 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3436 | return -1; | |
3af9a47b | 3437 | |
46d1c23b TG |
3438 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
3439 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
3440 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
3441 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
3442 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
3443 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
3444 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
3445 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
3446 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
3447 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
3448 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
3449 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
3450 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
3451 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
3452 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
3453 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
3454 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
3455 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
3456 | } | |
046b007d TG |
3457 | |
3458 | if (cmd->nmodtab != 0) | |
3459 | { | |
046b007d TG |
3460 | unsigned int i; |
3461 | int wide = bfd_mach_o_wide_p (abfd); | |
3462 | unsigned int module_len = wide ? 56 : 52; | |
3463 | ||
3464 | cmd->dylib_module = | |
3465 | bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module)); | |
3466 | if (cmd->dylib_module == NULL) | |
3467 | return -1; | |
3468 | ||
3469 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
3470 | return -1; | |
3471 | ||
3472 | for (i = 0; i < cmd->nmodtab; i++) | |
3473 | { | |
3474 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
3475 | unsigned long v; | |
46d1c23b | 3476 | unsigned char buf[56]; |
046b007d | 3477 | |
91d6fa6a | 3478 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) |
046b007d TG |
3479 | return -1; |
3480 | ||
3481 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
3482 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
3483 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
3484 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
3485 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
3486 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
3487 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
3488 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
3489 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
3490 | v = bfd_h_get_32 (abfd, buf +36); | |
3491 | module->iinit = v & 0xffff; | |
3492 | module->iterm = (v >> 16) & 0xffff; | |
3493 | v = bfd_h_get_32 (abfd, buf + 40); | |
3494 | module->ninit = v & 0xffff; | |
3495 | module->nterm = (v >> 16) & 0xffff; | |
3496 | if (wide) | |
3497 | { | |
3498 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
3499 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
3500 | } | |
3501 | else | |
3502 | { | |
3503 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
3504 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
3505 | } | |
3506 | } | |
3507 | } | |
afbb9e17 | 3508 | |
046b007d TG |
3509 | if (cmd->ntoc != 0) |
3510 | { | |
046b007d TG |
3511 | unsigned int i; |
3512 | ||
3513 | cmd->dylib_toc = bfd_alloc | |
3514 | (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content)); | |
3515 | if (cmd->dylib_toc == NULL) | |
3516 | return -1; | |
3517 | ||
3518 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
3519 | return -1; | |
3520 | ||
3521 | for (i = 0; i < cmd->ntoc; i++) | |
3522 | { | |
46d1c23b | 3523 | struct mach_o_dylib_table_of_contents_external raw; |
046b007d TG |
3524 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; |
3525 | ||
46d1c23b | 3526 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
3527 | return -1; |
3528 | ||
46d1c23b TG |
3529 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
3530 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
046b007d TG |
3531 | } |
3532 | } | |
3533 | ||
3534 | if (cmd->nindirectsyms != 0) | |
3535 | { | |
046b007d TG |
3536 | unsigned int i; |
3537 | ||
3538 | cmd->indirect_syms = bfd_alloc | |
3539 | (abfd, cmd->nindirectsyms * sizeof (unsigned int)); | |
3540 | if (cmd->indirect_syms == NULL) | |
3541 | return -1; | |
3542 | ||
3543 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
3544 | return -1; | |
3545 | ||
3546 | for (i = 0; i < cmd->nindirectsyms; i++) | |
3547 | { | |
46d1c23b | 3548 | unsigned char raw[4]; |
046b007d TG |
3549 | unsigned int *is = &cmd->indirect_syms[i]; |
3550 | ||
46d1c23b | 3551 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
3552 | return -1; |
3553 | ||
46d1c23b | 3554 | *is = bfd_h_get_32 (abfd, raw); |
046b007d TG |
3555 | } |
3556 | } | |
3557 | ||
3558 | if (cmd->nextrefsyms != 0) | |
3559 | { | |
046b007d TG |
3560 | unsigned long v; |
3561 | unsigned int i; | |
3562 | ||
3563 | cmd->ext_refs = bfd_alloc | |
3564 | (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference)); | |
3565 | if (cmd->ext_refs == NULL) | |
3566 | return -1; | |
3567 | ||
3568 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
3569 | return -1; | |
3570 | ||
3571 | for (i = 0; i < cmd->nextrefsyms; i++) | |
3572 | { | |
46d1c23b | 3573 | unsigned char raw[4]; |
046b007d TG |
3574 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; |
3575 | ||
46d1c23b | 3576 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
3577 | return -1; |
3578 | ||
b32e07d7 TG |
3579 | /* Fields isym and flags are written as bit-fields, thus we need |
3580 | a specific processing for endianness. */ | |
46d1c23b | 3581 | v = bfd_h_get_32 (abfd, raw); |
b32e07d7 TG |
3582 | if (bfd_big_endian (abfd)) |
3583 | { | |
3584 | ref->isym = (v >> 8) & 0xffffff; | |
3585 | ref->flags = v & 0xff; | |
3586 | } | |
3587 | else | |
3588 | { | |
3589 | ref->isym = v & 0xffffff; | |
3590 | ref->flags = (v >> 24) & 0xff; | |
3591 | } | |
046b007d TG |
3592 | } |
3593 | } | |
3af9a47b | 3594 | |
b32e07d7 TG |
3595 | if (mdata->dysymtab) |
3596 | return -1; | |
3597 | mdata->dysymtab = cmd; | |
3598 | ||
3af9a47b NC |
3599 | return 0; |
3600 | } | |
3601 | ||
a95a4550 | 3602 | static int |
ab273af8 | 3603 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3604 | { |
046b007d TG |
3605 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
3606 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 3607 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
3608 | |
3609 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
3610 | ||
46d1c23b TG |
3611 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3612 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b | 3613 | return -1; |
a95a4550 | 3614 | |
46d1c23b TG |
3615 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
3616 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
3617 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
3618 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
3619 | symtab->symbols = NULL; |
3620 | symtab->strtab = NULL; | |
3af9a47b | 3621 | |
046b007d | 3622 | if (symtab->nsyms != 0) |
15e1c58a TG |
3623 | abfd->flags |= HAS_SYMS; |
3624 | ||
046b007d TG |
3625 | if (mdata->symtab) |
3626 | return -1; | |
3627 | mdata->symtab = symtab; | |
3af9a47b NC |
3628 | return 0; |
3629 | } | |
3630 | ||
15e1c58a | 3631 | static int |
ab273af8 | 3632 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
3633 | { |
3634 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
3635 | |
3636 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
3637 | ||
46d1c23b TG |
3638 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3639 | || bfd_bread (cmd->uuid, 16, abfd) != 16) | |
15e1c58a TG |
3640 | return -1; |
3641 | ||
15e1c58a TG |
3642 | return 0; |
3643 | } | |
3644 | ||
046b007d | 3645 | static int |
ab273af8 | 3646 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
3647 | { |
3648 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 3649 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 3650 | |
46d1c23b TG |
3651 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3652 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
046b007d TG |
3653 | return -1; |
3654 | ||
46d1c23b TG |
3655 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
3656 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
046b007d TG |
3657 | return 0; |
3658 | } | |
3659 | ||
3660 | static int | |
ab273af8 | 3661 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
3662 | { |
3663 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 3664 | struct mach_o_str_command_external raw; |
046b007d TG |
3665 | unsigned long off; |
3666 | ||
46d1c23b TG |
3667 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3668 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
046b007d TG |
3669 | return -1; |
3670 | ||
46d1c23b | 3671 | off = bfd_get_32 (abfd, raw.str); |
046b007d TG |
3672 | cmd->stroff = command->offset + off; |
3673 | cmd->str_len = command->len - off; | |
3674 | cmd->str = bfd_alloc (abfd, cmd->str_len); | |
3675 | if (cmd->str == NULL) | |
3676 | return -1; | |
3677 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 | |
91d6fa6a | 3678 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
046b007d TG |
3679 | return -1; |
3680 | return 0; | |
3681 | } | |
3682 | ||
ad86f1fb | 3683 | static int |
ab273af8 | 3684 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
3685 | { |
3686 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 3687 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 3688 | |
46d1c23b TG |
3689 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3690 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
ad86f1fb TG |
3691 | return -1; |
3692 | ||
46d1c23b TG |
3693 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
3694 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
3695 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); | |
3696 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
3697 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); | |
3698 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
3699 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); | |
3700 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
3701 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); | |
3702 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
ad86f1fb TG |
3703 | return 0; |
3704 | } | |
3705 | ||
edbdea0e TG |
3706 | static bfd_boolean |
3707 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
3708 | { | |
3709 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
3710 | struct mach_o_version_min_command_external raw; | |
3711 | unsigned int ver; | |
3712 | ||
3713 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3714 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3715 | return FALSE; | |
3716 | ||
3717 | ver = bfd_get_32 (abfd, raw.version); | |
3718 | cmd->rel = ver >> 16; | |
3719 | cmd->maj = ver >> 8; | |
3720 | cmd->min = ver; | |
3721 | cmd->reserved = bfd_get_32 (abfd, raw.reserved); | |
3722 | return TRUE; | |
3723 | } | |
3724 | ||
fc55a902 TG |
3725 | static bfd_boolean |
3726 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) | |
3727 | { | |
3728 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
3729 | struct mach_o_encryption_info_command_external raw; | |
3730 | ||
3731 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3732 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3733 | return FALSE; | |
3734 | ||
3735 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
3736 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
3737 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
3738 | return TRUE; | |
3739 | } | |
3740 | ||
1778ad74 TG |
3741 | static bfd_boolean |
3742 | bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command) | |
3743 | { | |
3744 | bfd_mach_o_main_command *cmd = &command->command.main; | |
3745 | struct mach_o_entry_point_command_external raw; | |
3746 | ||
3747 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3748 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3749 | return FALSE; | |
3750 | ||
3751 | cmd->entryoff = bfd_get_64 (abfd, raw.entryoff); | |
3752 | cmd->stacksize = bfd_get_64 (abfd, raw.stacksize); | |
3753 | return TRUE; | |
3754 | } | |
3755 | ||
3756 | static bfd_boolean | |
3757 | bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command) | |
3758 | { | |
3759 | bfd_mach_o_source_version_command *cmd = &command->command.source_version; | |
3760 | struct mach_o_source_version_command_external raw; | |
3761 | bfd_uint64_t ver; | |
3762 | ||
3763 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3764 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3765 | return FALSE; | |
3766 | ||
3767 | ver = bfd_get_64 (abfd, raw.version); | |
3768 | /* Note: we use a serie of shift to avoid shift > 32 (for which gcc | |
3769 | generates warnings) in case of the host doesn't support 64 bit | |
3770 | integers. */ | |
3771 | cmd->e = ver & 0x3ff; | |
3772 | ver >>= 10; | |
3773 | cmd->d = ver & 0x3ff; | |
3774 | ver >>= 10; | |
3775 | cmd->c = ver & 0x3ff; | |
3776 | ver >>= 10; | |
3777 | cmd->b = ver & 0x3ff; | |
3778 | ver >>= 10; | |
3779 | cmd->a = ver & 0xffffff; | |
3780 | return TRUE; | |
3781 | } | |
3782 | ||
3af9a47b | 3783 | static int |
ab273af8 TG |
3784 | bfd_mach_o_read_segment (bfd *abfd, |
3785 | bfd_mach_o_load_command *command, | |
3786 | unsigned int wide) | |
3af9a47b | 3787 | { |
3af9a47b NC |
3788 | bfd_mach_o_segment_command *seg = &command->command.segment; |
3789 | unsigned long i; | |
a95a4550 | 3790 | |
1e8a024a TG |
3791 | if (wide) |
3792 | { | |
46d1c23b TG |
3793 | struct mach_o_segment_command_64_external raw; |
3794 | ||
1e8a024a | 3795 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 3796 | |
46d1c23b TG |
3797 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3798 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3799 | return -1; | |
3af9a47b | 3800 | |
46d1c23b | 3801 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 3802 | seg->segname[16] = '\0'; |
1e8a024a | 3803 | |
46d1c23b TG |
3804 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
3805 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
3806 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
3807 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
3808 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
3809 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
3810 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
3811 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
3812 | } |
3813 | else | |
3814 | { | |
46d1c23b TG |
3815 | struct mach_o_segment_command_32_external raw; |
3816 | ||
1e8a024a TG |
3817 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
3818 | ||
46d1c23b TG |
3819 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3820 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3821 | return -1; | |
1e8a024a | 3822 | |
46d1c23b | 3823 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 3824 | seg->segname[16] = '\0'; |
1e8a024a | 3825 | |
46d1c23b TG |
3826 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
3827 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
3828 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
3829 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
3830 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
3831 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
3832 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
3833 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 3834 | } |
9d4b6009 TG |
3835 | seg->sect_head = NULL; |
3836 | seg->sect_tail = NULL; | |
3af9a47b | 3837 | |
f1bde64c | 3838 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 3839 | { |
f1bde64c TG |
3840 | bfd_vma segoff; |
3841 | asection *sec; | |
a95a4550 | 3842 | |
f1bde64c TG |
3843 | if (wide) |
3844 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE | |
3845 | + (i * BFD_MACH_O_SECTION_64_SIZE); | |
3846 | else | |
3847 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE | |
3848 | + (i * BFD_MACH_O_SECTION_SIZE); | |
3af9a47b | 3849 | |
f1bde64c TG |
3850 | sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide); |
3851 | if (sec == NULL) | |
3852 | return -1; | |
3853 | ||
3854 | bfd_mach_o_append_section_to_segment (seg, sec); | |
3af9a47b NC |
3855 | } |
3856 | ||
3857 | return 0; | |
3858 | } | |
3859 | ||
1e8a024a | 3860 | static int |
ab273af8 | 3861 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 3862 | { |
ab273af8 | 3863 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
3864 | } |
3865 | ||
3866 | static int | |
ab273af8 | 3867 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 3868 | { |
ab273af8 | 3869 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
3870 | } |
3871 | ||
3af9a47b | 3872 | static int |
ab273af8 | 3873 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3874 | { |
46d1c23b TG |
3875 | struct mach_o_load_command_external raw; |
3876 | unsigned int cmd; | |
3af9a47b | 3877 | |
046b007d | 3878 | /* Read command type and length. */ |
c2f09c75 | 3879 | if (bfd_seek (abfd, command->offset, SEEK_SET) != 0 |
46d1c23b | 3880 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
3af9a47b NC |
3881 | return -1; |
3882 | ||
46d1c23b TG |
3883 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
3884 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; | |
3885 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; | |
3886 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3af9a47b NC |
3887 | |
3888 | switch (command->type) | |
3889 | { | |
3890 | case BFD_MACH_O_LC_SEGMENT: | |
ab273af8 | 3891 | if (bfd_mach_o_read_segment_32 (abfd, command) != 0) |
1e8a024a TG |
3892 | return -1; |
3893 | break; | |
3894 | case BFD_MACH_O_LC_SEGMENT_64: | |
ab273af8 | 3895 | if (bfd_mach_o_read_segment_64 (abfd, command) != 0) |
3af9a47b NC |
3896 | return -1; |
3897 | break; | |
3898 | case BFD_MACH_O_LC_SYMTAB: | |
ab273af8 | 3899 | if (bfd_mach_o_read_symtab (abfd, command) != 0) |
3af9a47b NC |
3900 | return -1; |
3901 | break; | |
3902 | case BFD_MACH_O_LC_SYMSEG: | |
3903 | break; | |
3904 | case BFD_MACH_O_LC_THREAD: | |
3905 | case BFD_MACH_O_LC_UNIXTHREAD: | |
ab273af8 | 3906 | if (bfd_mach_o_read_thread (abfd, command) != 0) |
3af9a47b NC |
3907 | return -1; |
3908 | break; | |
3909 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
3910 | case BFD_MACH_O_LC_ID_DYLINKER: | |
10be66a4 | 3911 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
ab273af8 | 3912 | if (bfd_mach_o_read_dylinker (abfd, command) != 0) |
3af9a47b NC |
3913 | return -1; |
3914 | break; | |
3915 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 3916 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
3af9a47b NC |
3917 | case BFD_MACH_O_LC_ID_DYLIB: |
3918 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 3919 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 3920 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
ab273af8 | 3921 | if (bfd_mach_o_read_dylib (abfd, command) != 0) |
3af9a47b NC |
3922 | return -1; |
3923 | break; | |
3924 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
ab273af8 | 3925 | if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0) |
3af9a47b NC |
3926 | return -1; |
3927 | break; | |
3928 | case BFD_MACH_O_LC_LOADFVMLIB: | |
3929 | case BFD_MACH_O_LC_IDFVMLIB: | |
9f4a5bd1 TG |
3930 | if (bfd_mach_o_read_fvmlib (abfd, command) != 0) |
3931 | return -1; | |
3932 | break; | |
3af9a47b NC |
3933 | case BFD_MACH_O_LC_IDENT: |
3934 | case BFD_MACH_O_LC_FVMFILE: | |
3935 | case BFD_MACH_O_LC_PREPAGE: | |
3936 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 3937 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 3938 | break; |
3af9a47b | 3939 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
3940 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
3941 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
3942 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 3943 | case BFD_MACH_O_LC_RPATH: |
ab273af8 | 3944 | if (bfd_mach_o_read_str (abfd, command) != 0) |
046b007d | 3945 | return -1; |
3af9a47b NC |
3946 | break; |
3947 | case BFD_MACH_O_LC_DYSYMTAB: | |
ab273af8 | 3948 | if (bfd_mach_o_read_dysymtab (abfd, command) != 0) |
3af9a47b NC |
3949 | return -1; |
3950 | break; | |
3af9a47b | 3951 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
7a79c514 TG |
3952 | if (bfd_mach_o_read_prebind_cksum (abfd, command) != 0) |
3953 | return -1; | |
3954 | break; | |
3955 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
3956 | if (bfd_mach_o_read_twolevel_hints (abfd, command) != 0) | |
3957 | return -1; | |
3af9a47b | 3958 | break; |
15e1c58a | 3959 | case BFD_MACH_O_LC_UUID: |
ab273af8 | 3960 | if (bfd_mach_o_read_uuid (abfd, command) != 0) |
15e1c58a TG |
3961 | return -1; |
3962 | break; | |
3963 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 3964 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 3965 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
1778ad74 TG |
3966 | case BFD_MACH_O_LC_DATA_IN_CODE: |
3967 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: | |
ab273af8 | 3968 | if (bfd_mach_o_read_linkedit (abfd, command) != 0) |
046b007d | 3969 | return -1; |
15e1c58a | 3970 | break; |
fc55a902 TG |
3971 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
3972 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
3973 | return -1; | |
3974 | break; | |
ad86f1fb | 3975 | case BFD_MACH_O_LC_DYLD_INFO: |
ab273af8 | 3976 | if (bfd_mach_o_read_dyld_info (abfd, command) != 0) |
ad86f1fb TG |
3977 | return -1; |
3978 | break; | |
edbdea0e TG |
3979 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
3980 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
3981 | if (!bfd_mach_o_read_version_min (abfd, command)) | |
3982 | return -1; | |
3983 | break; | |
1778ad74 TG |
3984 | case BFD_MACH_O_LC_MAIN: |
3985 | if (!bfd_mach_o_read_main (abfd, command)) | |
3986 | return -1; | |
3987 | break; | |
3988 | case BFD_MACH_O_LC_SOURCE_VERSION: | |
3989 | if (!bfd_mach_o_read_source_version (abfd, command)) | |
3990 | return -1; | |
3991 | break; | |
3af9a47b | 3992 | default: |
fc55a902 | 3993 | (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"), |
c0d9d051 | 3994 | abfd, (unsigned long) command->type); |
3af9a47b NC |
3995 | break; |
3996 | } | |
3997 | ||
3998 | return 0; | |
3999 | } | |
4000 | ||
4001 | static void | |
116c20d2 | 4002 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 4003 | { |
046b007d | 4004 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4005 | long csect = 0; |
f1bde64c | 4006 | unsigned long i; |
a95a4550 | 4007 | |
15e1c58a | 4008 | /* Count total number of sections. */ |
3af9a47b NC |
4009 | mdata->nsects = 0; |
4010 | ||
4011 | for (i = 0; i < mdata->header.ncmds; i++) | |
4012 | { | |
1e8a024a TG |
4013 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
4014 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4015 | { |
e84d6fca AM |
4016 | bfd_mach_o_segment_command *seg; |
4017 | ||
4018 | seg = &mdata->commands[i].command.segment; | |
3af9a47b NC |
4019 | mdata->nsects += seg->nsects; |
4020 | } | |
4021 | } | |
4022 | ||
15e1c58a | 4023 | /* Allocate sections array. */ |
e84d6fca AM |
4024 | mdata->sections = bfd_alloc (abfd, |
4025 | mdata->nsects * sizeof (bfd_mach_o_section *)); | |
15e1c58a TG |
4026 | |
4027 | /* Fill the array. */ | |
3af9a47b NC |
4028 | csect = 0; |
4029 | ||
4030 | for (i = 0; i < mdata->header.ncmds; i++) | |
4031 | { | |
1e8a024a TG |
4032 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
4033 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4034 | { |
e84d6fca | 4035 | bfd_mach_o_segment_command *seg; |
f1bde64c | 4036 | bfd_mach_o_section *sec; |
3af9a47b | 4037 | |
e84d6fca | 4038 | seg = &mdata->commands[i].command.segment; |
3af9a47b NC |
4039 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); |
4040 | ||
f1bde64c TG |
4041 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
4042 | mdata->sections[csect++] = sec; | |
3af9a47b NC |
4043 | } |
4044 | } | |
4045 | } | |
4046 | ||
afbb9e17 | 4047 | static bfd_boolean |
116c20d2 | 4048 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 4049 | { |
046b007d | 4050 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4051 | bfd_mach_o_thread_command *cmd = NULL; |
4052 | unsigned long i; | |
4053 | ||
4054 | for (i = 0; i < mdata->header.ncmds; i++) | |
afbb9e17 TG |
4055 | if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || |
4056 | (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) | |
4057 | { | |
4058 | cmd = &mdata->commands[i].command.thread; | |
4059 | break; | |
4060 | } | |
c0fd7846 TG |
4061 | else if (mdata->commands[i].type == BFD_MACH_O_LC_MAIN |
4062 | && mdata->nsects > 1) | |
4063 | { | |
4064 | bfd_mach_o_main_command *main_cmd = &mdata->commands[i].command.main; | |
4065 | bfd_mach_o_section *text_sect = mdata->sections[0]; | |
4066 | if (text_sect) | |
4067 | { | |
4068 | abfd->start_address = main_cmd->entryoff | |
4069 | + (text_sect->addr - text_sect->offset); | |
4070 | return TRUE; | |
4071 | } | |
4072 | } | |
3af9a47b | 4073 | |
5ee43bc4 | 4074 | /* An object file has no start address, so do not fail if not found. */ |
3af9a47b | 4075 | if (cmd == NULL) |
5ee43bc4 | 4076 | return TRUE; |
3af9a47b | 4077 | |
afbb9e17 | 4078 | /* FIXME: create a subtarget hook ? */ |
3af9a47b NC |
4079 | for (i = 0; i < cmd->nflavours; i++) |
4080 | { | |
a95a4550 | 4081 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
e84d6fca | 4082 | && (cmd->flavours[i].flavour |
15e1c58a | 4083 | == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
4084 | { |
4085 | unsigned char buf[4]; | |
4086 | ||
c2f09c75 TG |
4087 | if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0 |
4088 | || bfd_bread (buf, 4, abfd) != 4) | |
afbb9e17 | 4089 | return FALSE; |
3af9a47b NC |
4090 | |
4091 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4092 | } | |
a95a4550 | 4093 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
3af9a47b NC |
4094 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
4095 | { | |
4096 | unsigned char buf[4]; | |
4097 | ||
c2f09c75 TG |
4098 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
4099 | || bfd_bread (buf, 4, abfd) != 4) | |
afbb9e17 | 4100 | return FALSE; |
3af9a47b NC |
4101 | |
4102 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4103 | } | |
1e8a024a | 4104 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
b32e07d7 | 4105 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
1e8a024a TG |
4106 | { |
4107 | unsigned char buf[8]; | |
4108 | ||
c2f09c75 TG |
4109 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
4110 | || bfd_bread (buf, 8, abfd) != 8) | |
afbb9e17 | 4111 | return FALSE; |
1e8a024a TG |
4112 | |
4113 | abfd->start_address = bfd_h_get_64 (abfd, buf); | |
4114 | } | |
4115 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) | |
4116 | && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) | |
4117 | { | |
4118 | unsigned char buf[8]; | |
4119 | ||
c2f09c75 TG |
4120 | if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
4121 | || bfd_bread (buf, 8, abfd) != 8) | |
afbb9e17 | 4122 | return FALSE; |
1e8a024a TG |
4123 | |
4124 | abfd->start_address = bfd_h_get_64 (abfd, buf); | |
4125 | } | |
3af9a47b NC |
4126 | } |
4127 | ||
afbb9e17 | 4128 | return TRUE; |
3af9a47b NC |
4129 | } |
4130 | ||
42fa0891 TG |
4131 | bfd_boolean |
4132 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
4133 | enum bfd_architecture arch, | |
4134 | unsigned long machine) | |
4135 | { | |
4136 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
4137 | ||
4138 | /* If this isn't the right architecture for this backend, and this | |
4139 | isn't the generic backend, fail. */ | |
4140 | if (arch != bed->arch | |
4141 | && arch != bfd_arch_unknown | |
4142 | && bed->arch != bfd_arch_unknown) | |
4143 | return FALSE; | |
4144 | ||
4145 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
4146 | } | |
4147 | ||
afbb9e17 | 4148 | static bfd_boolean |
116c20d2 NC |
4149 | bfd_mach_o_scan (bfd *abfd, |
4150 | bfd_mach_o_header *header, | |
4151 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
4152 | { |
4153 | unsigned int i; | |
3af9a47b NC |
4154 | enum bfd_architecture cputype; |
4155 | unsigned long cpusubtype; | |
1e8a024a TG |
4156 | unsigned int hdrsize; |
4157 | ||
c2f09c75 | 4158 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 4159 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 4160 | |
3af9a47b | 4161 | mdata->header = *header; |
3af9a47b | 4162 | |
154a1ee5 | 4163 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
4164 | switch (header->filetype) |
4165 | { | |
4166 | case BFD_MACH_O_MH_OBJECT: | |
4167 | abfd->flags |= HAS_RELOC; | |
4168 | break; | |
4169 | case BFD_MACH_O_MH_EXECUTE: | |
4170 | abfd->flags |= EXEC_P; | |
4171 | break; | |
4172 | case BFD_MACH_O_MH_DYLIB: | |
4173 | case BFD_MACH_O_MH_BUNDLE: | |
4174 | abfd->flags |= DYNAMIC; | |
4175 | break; | |
4176 | } | |
4177 | ||
3af9a47b NC |
4178 | abfd->tdata.mach_o_data = mdata; |
4179 | ||
e84d6fca AM |
4180 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
4181 | &cputype, &cpusubtype); | |
3af9a47b NC |
4182 | if (cputype == bfd_arch_unknown) |
4183 | { | |
afbb9e17 TG |
4184 | (*_bfd_error_handler) |
4185 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), | |
4186 | header->cputype, header->cpusubtype); | |
4187 | return FALSE; | |
3af9a47b NC |
4188 | } |
4189 | ||
4190 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 4191 | |
3af9a47b NC |
4192 | if (header->ncmds != 0) |
4193 | { | |
046b007d TG |
4194 | mdata->commands = bfd_alloc |
4195 | (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)); | |
3af9a47b | 4196 | if (mdata->commands == NULL) |
afbb9e17 | 4197 | return FALSE; |
a95a4550 | 4198 | |
3af9a47b NC |
4199 | for (i = 0; i < header->ncmds; i++) |
4200 | { | |
4201 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
4202 | ||
4203 | if (i == 0) | |
1e8a024a | 4204 | cur->offset = hdrsize; |
3af9a47b NC |
4205 | else |
4206 | { | |
4207 | bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; | |
4208 | cur->offset = prev->offset + prev->len; | |
4209 | } | |
4210 | ||
ab273af8 | 4211 | if (bfd_mach_o_read_command (abfd, cur) < 0) |
afbb9e17 | 4212 | return FALSE; |
a95a4550 | 4213 | } |
3af9a47b NC |
4214 | } |
4215 | ||
c0fd7846 TG |
4216 | /* Sections should be flatten before scanning start address. */ |
4217 | bfd_mach_o_flatten_sections (abfd); | |
4218 | if (!bfd_mach_o_scan_start_address (abfd)) | |
afbb9e17 | 4219 | return FALSE; |
3af9a47b | 4220 | |
afbb9e17 | 4221 | return TRUE; |
3af9a47b NC |
4222 | } |
4223 | ||
b34976b6 | 4224 | bfd_boolean |
154a1ee5 | 4225 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
4226 | { |
4227 | bfd_mach_o_data_struct *mdata = NULL; | |
4228 | ||
b30a5d18 | 4229 | mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 4230 | if (mdata == NULL) |
b34976b6 | 4231 | return FALSE; |
3af9a47b NC |
4232 | abfd->tdata.mach_o_data = mdata; |
4233 | ||
4234 | mdata->header.magic = 0; | |
4235 | mdata->header.cputype = 0; | |
4236 | mdata->header.cpusubtype = 0; | |
4237 | mdata->header.filetype = 0; | |
4238 | mdata->header.ncmds = 0; | |
4239 | mdata->header.sizeofcmds = 0; | |
4240 | mdata->header.flags = 0; | |
4241 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
4242 | mdata->commands = NULL; | |
3af9a47b NC |
4243 | mdata->nsects = 0; |
4244 | mdata->sections = NULL; | |
4434114c | 4245 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 4246 | |
b34976b6 | 4247 | return TRUE; |
3af9a47b NC |
4248 | } |
4249 | ||
42fa0891 TG |
4250 | static bfd_boolean |
4251 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
4252 | { | |
4253 | bfd_mach_o_data_struct *mdata; | |
4254 | ||
4255 | if (!bfd_mach_o_mkobject_init (abfd)) | |
4256 | return FALSE; | |
4257 | ||
4258 | mdata = bfd_mach_o_get_data (abfd); | |
4259 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
4260 | mdata->header.cputype = 0; | |
4261 | mdata->header.cpusubtype = 0; | |
4262 | mdata->header.byteorder = abfd->xvec->byteorder; | |
4263 | mdata->header.version = 1; | |
4264 | ||
4265 | return TRUE; | |
4266 | } | |
4267 | ||
3af9a47b | 4268 | const bfd_target * |
154a1ee5 TG |
4269 | bfd_mach_o_header_p (bfd *abfd, |
4270 | bfd_mach_o_filetype filetype, | |
4271 | bfd_mach_o_cpu_type cputype) | |
3af9a47b NC |
4272 | { |
4273 | bfd_mach_o_header header; | |
c9ba0c87 | 4274 | bfd_mach_o_data_struct *mdata; |
3af9a47b | 4275 | |
154a1ee5 | 4276 | if (!bfd_mach_o_read_header (abfd, &header)) |
e84d6fca | 4277 | goto wrong; |
3af9a47b | 4278 | |
e84d6fca AM |
4279 | if (! (header.byteorder == BFD_ENDIAN_BIG |
4280 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 4281 | { |
4a97a0e5 AM |
4282 | (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"), |
4283 | (unsigned long) header.byteorder); | |
e84d6fca | 4284 | goto wrong; |
3af9a47b NC |
4285 | } |
4286 | ||
e84d6fca AM |
4287 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
4288 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
4289 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
4290 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
4291 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
4292 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
4293 | goto wrong; | |
3af9a47b | 4294 | |
154a1ee5 TG |
4295 | /* Check cputype and filetype. |
4296 | In case of wildcard, do not accept magics that are handled by existing | |
4297 | targets. */ | |
4298 | if (cputype) | |
4299 | { | |
4300 | if (header.cputype != cputype) | |
4301 | goto wrong; | |
4302 | } | |
26954155 TG |
4303 | else |
4304 | { | |
4305 | #ifndef BFD64 | |
4306 | /* Do not recognize 64 architectures if not configured for 64bit targets. | |
4307 | This could happen only for generic targets. */ | |
4308 | if (mach_o_wide_p (&header)) | |
4309 | goto wrong; | |
4310 | #endif | |
4311 | } | |
b22161d6 | 4312 | |
154a1ee5 TG |
4313 | if (filetype) |
4314 | { | |
4315 | if (header.filetype != filetype) | |
4316 | goto wrong; | |
4317 | } | |
4318 | else | |
4319 | { | |
4320 | switch (header.filetype) | |
4321 | { | |
4322 | case BFD_MACH_O_MH_CORE: | |
4323 | /* Handled by core_p */ | |
4324 | goto wrong; | |
4325 | default: | |
4326 | break; | |
4327 | } | |
4328 | } | |
4329 | ||
c9ba0c87 AM |
4330 | mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata)); |
4331 | if (mdata == NULL) | |
e84d6fca | 4332 | goto fail; |
3af9a47b | 4333 | |
c9ba0c87 | 4334 | if (!bfd_mach_o_scan (abfd, &header, mdata)) |
e84d6fca | 4335 | goto wrong; |
a95a4550 | 4336 | |
3af9a47b | 4337 | return abfd->xvec; |
e84d6fca AM |
4338 | |
4339 | wrong: | |
4340 | bfd_set_error (bfd_error_wrong_format); | |
4341 | ||
4342 | fail: | |
e84d6fca | 4343 | return NULL; |
3af9a47b NC |
4344 | } |
4345 | ||
154a1ee5 TG |
4346 | static const bfd_target * |
4347 | bfd_mach_o_gen_object_p (bfd *abfd) | |
3af9a47b | 4348 | { |
154a1ee5 TG |
4349 | return bfd_mach_o_header_p (abfd, 0, 0); |
4350 | } | |
e84d6fca | 4351 | |
154a1ee5 TG |
4352 | static const bfd_target * |
4353 | bfd_mach_o_gen_core_p (bfd *abfd) | |
4354 | { | |
4355 | return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0); | |
3af9a47b NC |
4356 | } |
4357 | ||
3cc27770 TG |
4358 | /* Return the base address of ABFD, ie the address at which the image is |
4359 | mapped. The possible initial pagezero is ignored. */ | |
4360 | ||
4361 | bfd_vma | |
4362 | bfd_mach_o_get_base_address (bfd *abfd) | |
4363 | { | |
4364 | bfd_mach_o_data_struct *mdata; | |
4365 | unsigned int i; | |
4366 | ||
4367 | /* Check for Mach-O. */ | |
4368 | if (!bfd_mach_o_valid (abfd)) | |
4369 | return 0; | |
4370 | mdata = bfd_mach_o_get_data (abfd); | |
4371 | ||
4372 | for (i = 0; i < mdata->header.ncmds; i++) | |
4373 | { | |
4374 | bfd_mach_o_load_command *cmd = &mdata->commands[i]; | |
4375 | if ((cmd->type == BFD_MACH_O_LC_SEGMENT | |
4376 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64)) | |
4377 | { | |
4378 | struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment; | |
4379 | ||
4380 | if (segcmd->initprot != 0) | |
4381 | return segcmd->vmaddr; | |
4382 | } | |
4383 | } | |
4384 | return 0; | |
4385 | } | |
4386 | ||
3af9a47b NC |
4387 | typedef struct mach_o_fat_archentry |
4388 | { | |
4389 | unsigned long cputype; | |
4390 | unsigned long cpusubtype; | |
4391 | unsigned long offset; | |
4392 | unsigned long size; | |
4393 | unsigned long align; | |
3af9a47b NC |
4394 | } mach_o_fat_archentry; |
4395 | ||
4396 | typedef struct mach_o_fat_data_struct | |
4397 | { | |
4398 | unsigned long magic; | |
4399 | unsigned long nfat_arch; | |
4400 | mach_o_fat_archentry *archentries; | |
4401 | } mach_o_fat_data_struct; | |
4402 | ||
4403 | const bfd_target * | |
116c20d2 | 4404 | bfd_mach_o_archive_p (bfd *abfd) |
3af9a47b | 4405 | { |
e84d6fca | 4406 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 4407 | struct mach_o_fat_header_external hdr; |
3af9a47b NC |
4408 | unsigned long i; |
4409 | ||
c2f09c75 | 4410 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 4411 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 4412 | goto error; |
3af9a47b | 4413 | |
116c20d2 | 4414 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 4415 | if (adata == NULL) |
e84d6fca | 4416 | goto error; |
a95a4550 | 4417 | |
46d1c23b TG |
4418 | adata->magic = bfd_getb32 (hdr.magic); |
4419 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 4420 | if (adata->magic != 0xcafebabe) |
e84d6fca | 4421 | goto error; |
27cc28f9 AS |
4422 | /* Avoid matching Java bytecode files, which have the same magic number. |
4423 | In the Java bytecode file format this field contains the JVM version, | |
4424 | which starts at 43.0. */ | |
4425 | if (adata->nfat_arch > 30) | |
4426 | goto error; | |
3af9a47b | 4427 | |
c2f09c75 | 4428 | adata->archentries = |
3af9a47b NC |
4429 | bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); |
4430 | if (adata->archentries == NULL) | |
e84d6fca | 4431 | goto error; |
3af9a47b NC |
4432 | |
4433 | for (i = 0; i < adata->nfat_arch; i++) | |
4434 | { | |
46d1c23b TG |
4435 | struct mach_o_fat_arch_external arch; |
4436 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 4437 | goto error; |
46d1c23b TG |
4438 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
4439 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
4440 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
4441 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
4442 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
4443 | } |
4444 | ||
4445 | abfd->tdata.mach_o_fat_data = adata; | |
4446 | return abfd->xvec; | |
e84d6fca AM |
4447 | |
4448 | error: | |
4449 | if (adata != NULL) | |
4450 | bfd_release (abfd, adata); | |
4451 | bfd_set_error (bfd_error_wrong_format); | |
4452 | return NULL; | |
3af9a47b NC |
4453 | } |
4454 | ||
a4e241ca TG |
4455 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
4456 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
4457 | Set arelt_data and origin fields too. */ | |
4458 | ||
4459 | static void | |
4460 | bfd_mach_o_fat_member_init (bfd *abfd, | |
4461 | enum bfd_architecture arch_type, | |
4462 | unsigned long arch_subtype, | |
4463 | mach_o_fat_archentry *entry) | |
4464 | { | |
4465 | struct areltdata *areltdata; | |
4466 | /* Create the member filename. Use ARCH_NAME. */ | |
4467 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
4468 | ||
4469 | if (ap) | |
4470 | { | |
4471 | /* Use the architecture name if known. */ | |
1be5090b | 4472 | abfd->filename = xstrdup (ap->printable_name); |
a4e241ca TG |
4473 | } |
4474 | else | |
4475 | { | |
4476 | /* Forge a uniq id. */ | |
4477 | const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1; | |
1be5090b | 4478 | char *name = xmalloc (namelen); |
a4e241ca TG |
4479 | snprintf (name, namelen, "0x%lx-0x%lx", |
4480 | entry->cputype, entry->cpusubtype); | |
4481 | abfd->filename = name; | |
4482 | } | |
4483 | ||
06e7acd7 | 4484 | areltdata = bfd_zmalloc (sizeof (struct areltdata)); |
a4e241ca TG |
4485 | areltdata->parsed_size = entry->size; |
4486 | abfd->arelt_data = areltdata; | |
4487 | abfd->iostream = NULL; | |
4488 | abfd->origin = entry->offset; | |
4489 | } | |
4490 | ||
3af9a47b | 4491 | bfd * |
116c20d2 | 4492 | bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 4493 | { |
e84d6fca | 4494 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
4495 | mach_o_fat_archentry *entry = NULL; |
4496 | unsigned long i; | |
15e1c58a | 4497 | bfd *nbfd; |
15e1c58a TG |
4498 | enum bfd_architecture arch_type; |
4499 | unsigned long arch_subtype; | |
3af9a47b | 4500 | |
e84d6fca | 4501 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
4502 | BFD_ASSERT (adata != NULL); |
4503 | ||
4504 | /* Find index of previous entry. */ | |
4505 | if (prev == NULL) | |
a4e241ca TG |
4506 | { |
4507 | /* Start at first one. */ | |
4508 | i = 0; | |
4509 | } | |
3af9a47b NC |
4510 | else |
4511 | { | |
a4e241ca | 4512 | /* Find index of PREV. */ |
3af9a47b NC |
4513 | for (i = 0; i < adata->nfat_arch; i++) |
4514 | { | |
15e1c58a | 4515 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
4516 | break; |
4517 | } | |
4518 | ||
4519 | if (i == adata->nfat_arch) | |
4520 | { | |
4521 | /* Not found. */ | |
4522 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 4523 | return NULL; |
3af9a47b | 4524 | } |
a4e241ca TG |
4525 | |
4526 | /* Get next entry. */ | |
4527 | i++; | |
4528 | } | |
a95a4550 | 4529 | |
3af9a47b NC |
4530 | if (i >= adata->nfat_arch) |
4531 | { | |
4532 | bfd_set_error (bfd_error_no_more_archived_files); | |
4533 | return NULL; | |
4534 | } | |
4535 | ||
4536 | entry = &adata->archentries[i]; | |
15e1c58a TG |
4537 | nbfd = _bfd_new_bfd_contained_in (archive); |
4538 | if (nbfd == NULL) | |
4539 | return NULL; | |
4540 | ||
15e1c58a TG |
4541 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
4542 | &arch_type, &arch_subtype); | |
846b9259 | 4543 | |
a4e241ca TG |
4544 | bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry); |
4545 | ||
846b9259 | 4546 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 4547 | |
15e1c58a | 4548 | return nbfd; |
3af9a47b NC |
4549 | } |
4550 | ||
15bbba8d TG |
4551 | /* Analogous to stat call. */ |
4552 | ||
4553 | static int | |
4554 | bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf) | |
4555 | { | |
4556 | if (abfd->arelt_data == NULL) | |
4557 | { | |
4558 | bfd_set_error (bfd_error_invalid_operation); | |
4559 | return -1; | |
4560 | } | |
4561 | ||
4562 | buf->st_mtime = 0; | |
4563 | buf->st_uid = 0; | |
4564 | buf->st_gid = 0; | |
4565 | buf->st_mode = 0644; | |
4566 | buf->st_size = arelt_size (abfd); | |
4567 | ||
4568 | return 0; | |
4569 | } | |
4570 | ||
846b9259 TG |
4571 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
4572 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
4573 | and ARCH, returns it. | |
4574 | In other case, returns NULL. | |
4575 | This function allows transparent uses of fat images. */ | |
a4e241ca | 4576 | |
846b9259 TG |
4577 | bfd * |
4578 | bfd_mach_o_fat_extract (bfd *abfd, | |
4579 | bfd_format format, | |
4580 | const bfd_arch_info_type *arch) | |
4581 | { | |
4582 | bfd *res; | |
4583 | mach_o_fat_data_struct *adata; | |
4584 | unsigned int i; | |
4585 | ||
4586 | if (bfd_check_format (abfd, format)) | |
4587 | { | |
4588 | if (bfd_get_arch_info (abfd) == arch) | |
4589 | return abfd; | |
4590 | return NULL; | |
4591 | } | |
4592 | if (!bfd_check_format (abfd, bfd_archive) | |
4593 | || abfd->xvec != &mach_o_fat_vec) | |
4594 | return NULL; | |
c2f09c75 | 4595 | |
846b9259 TG |
4596 | /* This is a Mach-O fat image. */ |
4597 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
4598 | BFD_ASSERT (adata != NULL); | |
4599 | ||
4600 | for (i = 0; i < adata->nfat_arch; i++) | |
4601 | { | |
4602 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
4603 | enum bfd_architecture cpu_type; | |
4604 | unsigned long cpu_subtype; | |
4605 | ||
4606 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
4607 | &cpu_type, &cpu_subtype); | |
4608 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
4609 | continue; | |
4610 | ||
4611 | /* The architecture is found. */ | |
4612 | res = _bfd_new_bfd_contained_in (abfd); | |
4613 | if (res == NULL) | |
4614 | return NULL; | |
4615 | ||
a4e241ca | 4616 | bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e); |
846b9259 TG |
4617 | |
4618 | if (bfd_check_format (res, format)) | |
4619 | { | |
4620 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
4621 | return res; | |
4622 | } | |
4623 | bfd_close (res); | |
4624 | return NULL; | |
4625 | } | |
4626 | ||
4627 | return NULL; | |
4628 | } | |
4629 | ||
3af9a47b | 4630 | int |
116c20d2 NC |
4631 | bfd_mach_o_lookup_command (bfd *abfd, |
4632 | bfd_mach_o_load_command_type type, | |
4633 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 4634 | { |
046b007d | 4635 | struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4636 | bfd_mach_o_load_command *ncmd = NULL; |
4637 | unsigned int i, num; | |
4638 | ||
3af9a47b NC |
4639 | BFD_ASSERT (md != NULL); |
4640 | BFD_ASSERT (mcommand != NULL); | |
4641 | ||
4642 | num = 0; | |
4643 | for (i = 0; i < md->header.ncmds; i++) | |
4644 | { | |
4645 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; | |
4646 | ||
4647 | if (cmd->type != type) | |
4648 | continue; | |
4649 | ||
4650 | if (num == 0) | |
4651 | ncmd = cmd; | |
4652 | num++; | |
4653 | } | |
4654 | ||
4655 | *mcommand = ncmd; | |
4656 | return num; | |
4657 | } | |
4658 | ||
4659 | unsigned long | |
116c20d2 | 4660 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
4661 | { |
4662 | switch (type) | |
4663 | { | |
4664 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
4665 | return 0x04000000; | |
4666 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
4667 | return 0xffffe000; | |
4668 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
4669 | return 0xc0000000; | |
4670 | case BFD_MACH_O_CPU_TYPE_I386: | |
4671 | return 0xc0000000; | |
4672 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
4673 | return 0xf0000000; | |
4674 | case BFD_MACH_O_CPU_TYPE_I860: | |
4675 | return 0; | |
4676 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
e84d6fca | 4677 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
4678 | default: |
4679 | return 0; | |
4680 | } | |
4681 | } | |
4682 | ||
ab76eeaf IS |
4683 | /* The following two tables should be kept, as far as possible, in order of |
4684 | most frequently used entries to optimize their use from gas. */ | |
4685 | ||
c5012cd8 | 4686 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
4687 | { |
4688 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 4689 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
4690 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
4691 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
4692 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
4693 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 4694 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 4695 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
4696 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
4697 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
4698 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
4699 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 4700 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
4701 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
4702 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 4703 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
4704 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
4705 | { NULL, 0} | |
4706 | }; | |
4707 | ||
c5012cd8 | 4708 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 4709 | { |
ab76eeaf IS |
4710 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
4711 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
4712 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
4713 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 4714 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
4715 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
4716 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
4717 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
4718 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 4719 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 4720 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
4721 | { NULL, 0} |
4722 | }; | |
4723 | ||
a4551119 | 4724 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
4725 | |
4726 | unsigned int | |
ab76eeaf | 4727 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 4728 | { |
afbb9e17 | 4729 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 4730 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
4731 | |
4732 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
4733 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
4734 | { |
4735 | /* We found it... does the target support it? */ | |
4736 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
4737 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
4738 | return x->val; /* OK. */ | |
4739 | else | |
4740 | break; /* Not supported. */ | |
4741 | } | |
a4551119 TG |
4742 | /* Maximum section ID = 0xff. */ |
4743 | return 256; | |
53d58d96 TG |
4744 | } |
4745 | ||
4746 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
4747 | ||
4748 | unsigned int | |
4749 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
4750 | { | |
afbb9e17 | 4751 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
4752 | |
4753 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
4754 | if (strcmp (x->name, name) == 0) | |
4755 | return x->val; | |
4756 | return (unsigned int)-1; | |
4757 | } | |
4758 | ||
3af9a47b | 4759 | int |
116c20d2 NC |
4760 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
4761 | unsigned char **rbuf, | |
4762 | unsigned int *rlen) | |
3af9a47b | 4763 | { |
046b007d | 4764 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4765 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
4766 | unsigned int i = 0; | |
4767 | ||
4768 | for (i = 0; i < mdata->header.ncmds; i++) | |
4769 | { | |
4770 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
4771 | bfd_mach_o_segment_command *seg = NULL; | |
4772 | ||
4773 | if (cur->type != BFD_MACH_O_LC_SEGMENT) | |
4774 | continue; | |
4775 | ||
4776 | seg = &cur->command.segment; | |
4777 | ||
4778 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
4779 | { | |
4780 | unsigned long start = seg->fileoff; | |
4781 | unsigned long end = seg->fileoff + seg->filesize; | |
4782 | unsigned char *buf = bfd_malloc (1024); | |
4783 | unsigned long size = 1024; | |
4784 | ||
4785 | for (;;) | |
4786 | { | |
4787 | bfd_size_type nread = 0; | |
4788 | unsigned long offset; | |
4789 | int found_nonnull = 0; | |
4790 | ||
4791 | if (size > (end - start)) | |
4792 | size = (end - start); | |
4793 | ||
515ef31d NC |
4794 | buf = bfd_realloc_or_free (buf, size); |
4795 | if (buf == NULL) | |
4796 | return -1; | |
c2f09c75 TG |
4797 | |
4798 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
4799 | { | |
4800 | free (buf); | |
4801 | return -1; | |
4802 | } | |
4803 | ||
3af9a47b | 4804 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 4805 | |
3af9a47b | 4806 | if (nread != size) |
515ef31d NC |
4807 | { |
4808 | free (buf); | |
4809 | return -1; | |
4810 | } | |
a95a4550 | 4811 | |
3af9a47b NC |
4812 | for (offset = 4; offset <= size; offset += 4) |
4813 | { | |
e84d6fca | 4814 | unsigned long val; |
3af9a47b | 4815 | |
e84d6fca | 4816 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
4817 | if (! found_nonnull) |
4818 | { | |
4819 | if (val != 0) | |
4820 | found_nonnull = 1; | |
4821 | } | |
4822 | else if (val == 0x0) | |
4823 | { | |
e84d6fca AM |
4824 | unsigned long bottom; |
4825 | unsigned long top; | |
3af9a47b | 4826 | |
e84d6fca AM |
4827 | bottom = seg->fileoff + seg->filesize - offset; |
4828 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
4829 | *rbuf = bfd_malloc (top - bottom); |
4830 | *rlen = top - bottom; | |
4831 | ||
4832 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 4833 | free (buf); |
3af9a47b NC |
4834 | return 0; |
4835 | } | |
4836 | } | |
4837 | ||
4838 | if (size == (end - start)) | |
4839 | break; | |
4840 | ||
4841 | size *= 2; | |
4842 | } | |
515ef31d NC |
4843 | |
4844 | free (buf); | |
3af9a47b NC |
4845 | } |
4846 | } | |
4847 | ||
4848 | return -1; | |
4849 | } | |
4850 | ||
4851 | char * | |
116c20d2 | 4852 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
4853 | { |
4854 | unsigned char *buf = NULL; | |
4855 | unsigned int len = 0; | |
4856 | int ret = -1; | |
4857 | ||
4858 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
4859 | if (ret < 0) | |
4860 | return NULL; | |
4861 | ||
f075ee0c | 4862 | return (char *) buf; |
3af9a47b NC |
4863 | } |
4864 | ||
4865 | int | |
116c20d2 | 4866 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
4867 | { |
4868 | return 0; | |
4869 | } | |
4870 | ||
2ca7691a TG |
4871 | static bfd_mach_o_uuid_command * |
4872 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
4873 | { | |
4874 | bfd_mach_o_load_command *uuid_cmd; | |
4875 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); | |
4876 | if (ncmd != 1) | |
4877 | return FALSE; | |
4878 | return &uuid_cmd->command.uuid; | |
4879 | } | |
4880 | ||
4881 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
4882 | ||
4883 | static bfd_boolean | |
4884 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) | |
4885 | { | |
4886 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
4887 | ||
4888 | BFD_ASSERT (abfd); | |
4889 | BFD_ASSERT (uuid_cmd); | |
4890 | ||
4891 | if (!bfd_check_format (abfd, bfd_object)) | |
4892 | return FALSE; | |
4893 | ||
4894 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
4895 | || bfd_mach_o_get_data (abfd) == NULL | |
4896 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
4897 | return FALSE; | |
4898 | ||
4899 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
4900 | if (dsym_uuid_cmd == NULL) | |
4901 | return FALSE; | |
4902 | ||
4903 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
4904 | sizeof (uuid_cmd->uuid)) != 0) | |
4905 | return FALSE; | |
4906 | ||
4907 | return TRUE; | |
4908 | } | |
4909 | ||
4910 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
4911 | The caller is responsible for closing the returned BFD object and | |
4912 | its my_archive if the returned BFD is in a fat dSYM. */ | |
4913 | ||
4914 | static bfd * | |
4915 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
4916 | const bfd_mach_o_uuid_command *uuid_cmd, | |
4917 | const bfd_arch_info_type *arch) | |
4918 | { | |
4919 | bfd *base_dsym_bfd, *dsym_bfd; | |
4920 | ||
4921 | BFD_ASSERT (uuid_cmd); | |
4922 | ||
4923 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
4924 | if (base_dsym_bfd == NULL) | |
4925 | return NULL; | |
4926 | ||
4927 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
4928 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
4929 | return dsym_bfd; | |
4930 | ||
4931 | bfd_close (dsym_bfd); | |
4932 | if (base_dsym_bfd != dsym_bfd) | |
4933 | bfd_close (base_dsym_bfd); | |
4934 | ||
4935 | return NULL; | |
4936 | } | |
4937 | ||
4938 | /* Return a BFD created from a dSYM file for ABFD. | |
4939 | The caller is responsible for closing the returned BFD object, its | |
4940 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
4941 | ||
4942 | static bfd * | |
4943 | bfd_mach_o_follow_dsym (bfd *abfd) | |
4944 | { | |
4945 | char *dsym_filename; | |
4946 | bfd_mach_o_uuid_command *uuid_cmd; | |
4947 | bfd *dsym_bfd, *base_bfd = abfd; | |
4948 | const char *base_basename; | |
4949 | ||
4950 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
4951 | return NULL; | |
4952 | ||
4953 | if (abfd->my_archive) | |
4954 | base_bfd = abfd->my_archive; | |
4955 | /* BFD may have been opened from a stream. */ | |
4956 | if (base_bfd->filename == NULL) | |
4957 | { | |
4958 | bfd_set_error (bfd_error_invalid_operation); | |
4959 | return NULL; | |
4960 | } | |
4961 | base_basename = lbasename (base_bfd->filename); | |
4962 | ||
4963 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
4964 | if (uuid_cmd == NULL) | |
4965 | return NULL; | |
4966 | ||
4967 | /* TODO: We assume the DWARF file has the same as the binary's. | |
4968 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
4969 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
4970 | */ | |
4971 | dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename) | |
4972 | + strlen (dsym_subdir) + 1 | |
4973 | + strlen (base_basename) + 1); | |
4974 | sprintf (dsym_filename, "%s%s/%s", | |
4975 | base_bfd->filename, dsym_subdir, base_basename); | |
4976 | ||
4977 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
4978 | bfd_get_arch_info (abfd)); | |
4979 | if (dsym_bfd == NULL) | |
4980 | free (dsym_filename); | |
4981 | ||
4982 | return dsym_bfd; | |
4983 | } | |
4984 | ||
d9071b0c TG |
4985 | bfd_boolean |
4986 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
4987 | asection *section, | |
4988 | asymbol **symbols, | |
4989 | bfd_vma offset, | |
4990 | const char **filename_ptr, | |
4991 | const char **functionname_ptr, | |
4992 | unsigned int *line_ptr) | |
4993 | { | |
4994 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 4995 | if (mdata == NULL) |
d9071b0c | 4996 | return FALSE; |
2ca7691a TG |
4997 | switch (mdata->header.filetype) |
4998 | { | |
4999 | case BFD_MACH_O_MH_OBJECT: | |
5000 | break; | |
5001 | case BFD_MACH_O_MH_EXECUTE: | |
5002 | case BFD_MACH_O_MH_DYLIB: | |
5003 | case BFD_MACH_O_MH_BUNDLE: | |
5004 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
5005 | if (mdata->dwarf2_find_line_info == NULL) | |
5006 | { | |
5007 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
5008 | /* When we couldn't find dSYM for this binary, we look for | |
5009 | the debug information in the binary itself. In this way, | |
5010 | we won't try finding separated dSYM again because | |
5011 | mdata->dwarf2_find_line_info will be filled. */ | |
5012 | if (! mdata->dsym_bfd) | |
5013 | break; | |
5014 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
5015 | dwarf_debug_sections, symbols, | |
5016 | &mdata->dwarf2_find_line_info)) | |
5017 | return FALSE; | |
5018 | } | |
5019 | break; | |
5020 | default: | |
5021 | return FALSE; | |
5022 | } | |
d9071b0c TG |
5023 | if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections, |
5024 | section, symbols, offset, | |
5025 | filename_ptr, functionname_ptr, | |
9b8d1a36 | 5026 | line_ptr, NULL, 0, |
d9071b0c TG |
5027 | &mdata->dwarf2_find_line_info)) |
5028 | return TRUE; | |
5029 | return FALSE; | |
5030 | } | |
5031 | ||
5032 | bfd_boolean | |
5033 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
5034 | { | |
5035 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5036 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
5037 | { |
5038 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
5039 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a TG |
5040 | if (mdata->dsym_bfd != NULL) |
5041 | { | |
5042 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
5043 | char *dsym_filename = (char *)(fat_bfd | |
5044 | ? fat_bfd->filename | |
5045 | : mdata->dsym_bfd->filename); | |
5046 | bfd_close (mdata->dsym_bfd); | |
5047 | mdata->dsym_bfd = NULL; | |
5048 | if (fat_bfd) | |
5049 | bfd_close (fat_bfd); | |
5050 | free (dsym_filename); | |
5051 | } | |
4434114c | 5052 | } |
dff55db0 | 5053 | |
8c746b96 AM |
5054 | if (bfd_get_format (abfd) == bfd_archive |
5055 | && abfd->xvec == &mach_o_fat_vec) | |
5056 | return TRUE; | |
d9071b0c TG |
5057 | return _bfd_generic_close_and_cleanup (abfd); |
5058 | } | |
5059 | ||
dff55db0 TG |
5060 | bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd) |
5061 | { | |
5062 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5063 | asection *asect; | |
5064 | free (mdata->dyn_reloc_cache); | |
5065 | mdata->dyn_reloc_cache = NULL; | |
5066 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
5067 | { | |
5068 | free (asect->relocation); | |
5069 | asect->relocation = NULL; | |
5070 | } | |
5071 | ||
5072 | return TRUE; | |
5073 | } | |
5074 | ||
68ffbac6 | 5075 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
92bc0e80 TG |
5076 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
5077 | ||
5078 | #define bfd_mach_o_swap_reloc_in NULL | |
5079 | #define bfd_mach_o_swap_reloc_out NULL | |
b32e07d7 | 5080 | #define bfd_mach_o_print_thread NULL |
a4551119 | 5081 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 5082 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 5083 | |
116c20d2 NC |
5084 | #define TARGET_NAME mach_o_be_vec |
5085 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 5086 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
5087 | #define TARGET_BIG_ENDIAN 1 |
5088 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 5089 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
5090 | #include "mach-o-target.c" |
5091 | ||
5092 | #undef TARGET_NAME | |
5093 | #undef TARGET_STRING | |
42fa0891 | 5094 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
5095 | #undef TARGET_BIG_ENDIAN |
5096 | #undef TARGET_ARCHIVE | |
b93a1992 | 5097 | #undef TARGET_PRIORITY |
3af9a47b | 5098 | |
116c20d2 NC |
5099 | #define TARGET_NAME mach_o_le_vec |
5100 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 5101 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
5102 | #define TARGET_BIG_ENDIAN 0 |
5103 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 5104 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
5105 | |
5106 | #include "mach-o-target.c" | |
5107 | ||
5108 | #undef TARGET_NAME | |
5109 | #undef TARGET_STRING | |
42fa0891 | 5110 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
5111 | #undef TARGET_BIG_ENDIAN |
5112 | #undef TARGET_ARCHIVE | |
b93a1992 | 5113 | #undef TARGET_PRIORITY |
3af9a47b | 5114 | |
8f95b6e4 TG |
5115 | /* Not yet handled: creating an archive. */ |
5116 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive | |
5117 | ||
5118 | /* Not used. */ | |
5119 | #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr | |
5120 | #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr | |
5121 | #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap | |
5122 | #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table | |
5123 | #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table | |
5124 | #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname | |
5125 | #define bfd_mach_o_write_armap _bfd_noarchive_write_armap | |
5126 | #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index | |
15bbba8d | 5127 | #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt |
8f95b6e4 TG |
5128 | #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp |
5129 | ||
116c20d2 NC |
5130 | #define TARGET_NAME mach_o_fat_vec |
5131 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 5132 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
5133 | #define TARGET_BIG_ENDIAN 1 |
5134 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 5135 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
5136 | |
5137 | #include "mach-o-target.c" | |
5138 | ||
5139 | #undef TARGET_NAME | |
5140 | #undef TARGET_STRING | |
42fa0891 | 5141 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
5142 | #undef TARGET_BIG_ENDIAN |
5143 | #undef TARGET_ARCHIVE | |
b93a1992 | 5144 | #undef TARGET_PRIORITY |