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3af9a47b | 1 | /* Mach-O support for BFD. |
219d1afa | 2 | Copyright (C) 1999-2018 Free Software Foundation, Inc. |
3af9a47b NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b NC |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
a95a4550 | 17 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
3af9a47b | 20 | |
3db64b00 | 21 | #include "sysdep.h" |
3af9a47b NC |
22 | #include "mach-o.h" |
23 | #include "bfd.h" | |
3af9a47b NC |
24 | #include "libbfd.h" |
25 | #include "libiberty.h" | |
15e1c58a | 26 | #include "aout/stab_gnu.h" |
46d1c23b TG |
27 | #include "mach-o/reloc.h" |
28 | #include "mach-o/external.h" | |
3af9a47b | 29 | #include <ctype.h> |
7f307238 IS |
30 | #include <stdlib.h> |
31 | #include <string.h> | |
3af9a47b | 32 | |
154a1ee5 TG |
33 | #define bfd_mach_o_object_p bfd_mach_o_gen_object_p |
34 | #define bfd_mach_o_core_p bfd_mach_o_gen_core_p | |
42fa0891 | 35 | #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject |
116c20d2 | 36 | |
92bc0e80 | 37 | #define FILE_ALIGN(off, algn) \ |
b6518b38 | 38 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn))) |
92bc0e80 | 39 | |
c9ffd2ea TG |
40 | static bfd_boolean |
41 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd); | |
42 | ||
c2f09c75 | 43 | unsigned int |
1e8a024a TG |
44 | bfd_mach_o_version (bfd *abfd) |
45 | { | |
46 | bfd_mach_o_data_struct *mdata = NULL; | |
47 | ||
48 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
046b007d | 49 | mdata = bfd_mach_o_get_data (abfd); |
1e8a024a TG |
50 | |
51 | return mdata->header.version; | |
52 | } | |
53 | ||
b34976b6 | 54 | bfd_boolean |
116c20d2 | 55 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
56 | { |
57 | if (abfd == NULL || abfd->xvec == NULL) | |
154a1ee5 | 58 | return FALSE; |
3af9a47b | 59 | |
154a1ee5 TG |
60 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
61 | return FALSE; | |
3af9a47b | 62 | |
046b007d | 63 | if (bfd_mach_o_get_data (abfd) == NULL) |
154a1ee5 TG |
64 | return FALSE; |
65 | return TRUE; | |
66 | } | |
67 | ||
c2f09c75 TG |
68 | static INLINE bfd_boolean |
69 | mach_o_wide_p (bfd_mach_o_header *header) | |
70 | { | |
71 | switch (header->version) | |
72 | { | |
73 | case 1: | |
74 | return FALSE; | |
75 | case 2: | |
76 | return TRUE; | |
77 | default: | |
78 | BFD_FAIL (); | |
79 | return FALSE; | |
80 | } | |
81 | } | |
82 | ||
83 | static INLINE bfd_boolean | |
84 | bfd_mach_o_wide_p (bfd *abfd) | |
85 | { | |
046b007d | 86 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
c2f09c75 | 87 | } |
68ffbac6 | 88 | |
154a1ee5 TG |
89 | /* Tables to translate well known Mach-O segment/section names to bfd |
90 | names. Use of canonical names (such as .text or .debug_frame) is required | |
91 | by gdb. */ | |
92 | ||
a4551119 TG |
93 | /* __TEXT Segment. */ |
94 | static const mach_o_section_name_xlat text_section_names_xlat[] = | |
154a1ee5 | 95 | { |
68ffbac6 | 96 | { ".text", "__text", |
a4551119 TG |
97 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, |
98 | BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0}, | |
99 | { ".const", "__const", | |
100 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
101 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
102 | { ".static_const", "__static_const", | |
103 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
104 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
105 | { ".cstring", "__cstring", | |
106 | SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS, | |
107 | BFD_MACH_O_S_CSTRING_LITERALS, | |
108 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
109 | { ".literal4", "__literal4", | |
110 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS, | |
111 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
112 | { ".literal8", "__literal8", | |
113 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS, | |
114 | BFD_MACH_O_S_ATTR_NONE, 3}, | |
115 | { ".literal16", "__literal16", | |
116 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS, | |
117 | BFD_MACH_O_S_ATTR_NONE, 4}, | |
118 | { ".constructor", "__constructor", | |
119 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
120 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
121 | { ".destructor", "__destructor", | |
122 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
123 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
124 | { ".eh_frame", "__eh_frame", | |
632039e0 | 125 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED, |
a4551119 TG |
126 | BFD_MACH_O_S_ATTR_LIVE_SUPPORT |
127 | | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS | |
632039e0 | 128 | | BFD_MACH_O_S_ATTR_NO_TOC, 2}, |
a4551119 | 129 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
130 | }; |
131 | ||
a4551119 TG |
132 | /* __DATA Segment. */ |
133 | static const mach_o_section_name_xlat data_section_names_xlat[] = | |
154a1ee5 | 134 | { |
a4551119 TG |
135 | { ".data", "__data", |
136 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
137 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
138 | { ".bss", "__bss", | |
139 | SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL, | |
140 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
141 | { ".const_data", "__const", | |
142 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
143 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
144 | { ".static_data", "__static_data", | |
145 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
146 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
147 | { ".mod_init_func", "__mod_init_func", | |
148 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS, | |
149 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
150 | { ".mod_term_func", "__mod_term_func", | |
151 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS, | |
152 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
153 | { ".dyld", "__dyld", | |
154 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
155 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
156 | { ".cfstring", "__cfstring", | |
157 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
158 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
159 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
160 | }; |
161 | ||
a4551119 TG |
162 | /* __DWARF Segment. */ |
163 | static const mach_o_section_name_xlat dwarf_section_names_xlat[] = | |
154a1ee5 | 164 | { |
a4551119 TG |
165 | { ".debug_frame", "__debug_frame", |
166 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
167 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
168 | { ".debug_info", "__debug_info", | |
169 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
170 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
171 | { ".debug_abbrev", "__debug_abbrev", | |
172 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
173 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
174 | { ".debug_aranges", "__debug_aranges", | |
175 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
176 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
177 | { ".debug_macinfo", "__debug_macinfo", | |
178 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
179 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
180 | { ".debug_line", "__debug_line", | |
181 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
182 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
183 | { ".debug_loc", "__debug_loc", | |
184 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
185 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
186 | { ".debug_pubnames", "__debug_pubnames", | |
187 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
188 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
189 | { ".debug_pubtypes", "__debug_pubtypes", | |
190 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
191 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
192 | { ".debug_str", "__debug_str", | |
193 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
194 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
195 | { ".debug_ranges", "__debug_ranges", | |
196 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
197 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
198 | { ".debug_macro", "__debug_macro", | |
199 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
200 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
671a6cbe NC |
201 | { ".debug_gdb_scripts", "__debug_gdb_scri", |
202 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
203 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
a4551119 | 204 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
205 | }; |
206 | ||
a4551119 TG |
207 | /* __OBJC Segment. */ |
208 | static const mach_o_section_name_xlat objc_section_names_xlat[] = | |
209 | { | |
210 | { ".objc_class", "__class", | |
211 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
212 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
213 | { ".objc_meta_class", "__meta_class", | |
214 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
215 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
216 | { ".objc_cat_cls_meth", "__cat_cls_meth", | |
217 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
218 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
219 | { ".objc_cat_inst_meth", "__cat_inst_meth", | |
220 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
221 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
222 | { ".objc_protocol", "__protocol", | |
223 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
224 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
225 | { ".objc_string_object", "__string_object", | |
226 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
227 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
228 | { ".objc_cls_meth", "__cls_meth", | |
229 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
230 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
231 | { ".objc_inst_meth", "__inst_meth", | |
232 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
233 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
234 | { ".objc_cls_refs", "__cls_refs", | |
235 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
236 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
237 | { ".objc_message_refs", "__message_refs", | |
238 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
239 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
240 | { ".objc_symbols", "__symbols", | |
241 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
242 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
243 | { ".objc_category", "__category", | |
244 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
245 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
246 | { ".objc_class_vars", "__class_vars", | |
247 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
248 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
249 | { ".objc_instance_vars", "__instance_vars", | |
250 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
251 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
252 | { ".objc_module_info", "__module_info", | |
253 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
254 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
255 | { ".objc_selector_strs", "__selector_strs", | |
256 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS, | |
257 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
258 | { ".objc_image_info", "__image_info", | |
259 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
260 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
261 | { ".objc_selector_fixup", "__sel_fixup", | |
262 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
263 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
264 | /* Objc V1 */ | |
265 | { ".objc1_class_ext", "__class_ext", | |
266 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
267 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
268 | { ".objc1_property_list", "__property", | |
269 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
270 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
271 | { ".objc1_protocol_ext", "__protocol_ext", | |
272 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
273 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
274 | { NULL, NULL, 0, 0, 0, 0} | |
275 | }; | |
5a5cbf72 | 276 | |
a4551119 | 277 | static const mach_o_segment_name_xlat segsec_names_xlat[] = |
154a1ee5 | 278 | { |
154a1ee5 TG |
279 | { "__TEXT", text_section_names_xlat }, |
280 | { "__DATA", data_section_names_xlat }, | |
5a5cbf72 | 281 | { "__DWARF", dwarf_section_names_xlat }, |
a4551119 | 282 | { "__OBJC", objc_section_names_xlat }, |
154a1ee5 TG |
283 | { NULL, NULL } |
284 | }; | |
285 | ||
2ca7691a TG |
286 | static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF"; |
287 | ||
a4551119 TG |
288 | /* For both cases bfd-name => mach-o name and vice versa, the specific target |
289 | is checked before the generic. This allows a target (e.g. ppc for cstring) | |
290 | to override the generic definition with a more specific one. */ | |
154a1ee5 | 291 | |
a4551119 TG |
292 | /* Fetch the translation from a Mach-O section designation (segment, section) |
293 | as a bfd short name, if one exists. Otherwise return NULL. | |
68ffbac6 | 294 | |
a4551119 TG |
295 | Allow the segment and section names to be unterminated 16 byte arrays. */ |
296 | ||
297 | const mach_o_section_name_xlat * | |
298 | bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname, | |
299 | const char *sectname) | |
154a1ee5 TG |
300 | { |
301 | const struct mach_o_segment_name_xlat *seg; | |
a4551119 TG |
302 | const mach_o_section_name_xlat *sec; |
303 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
154a1ee5 | 304 | |
a4551119 TG |
305 | /* First try any target-specific translations defined... */ |
306 | if (bed->segsec_names_xlat) | |
307 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
308 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
309 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
310 | if (strncmp (sec->mach_o_name, sectname, | |
311 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
312 | return sec; | |
8462aec7 | 313 | |
a4551119 | 314 | /* ... and then the Mach-O generic ones. */ |
154a1ee5 | 315 | for (seg = segsec_names_xlat; seg->segname; seg++) |
a4551119 TG |
316 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) |
317 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
07d6d2b8 | 318 | if (strncmp (sec->mach_o_name, sectname, |
a4551119 | 319 | BFD_MACH_O_SECTNAME_SIZE) == 0) |
07d6d2b8 | 320 | return sec; |
154a1ee5 | 321 | |
68ffbac6 | 322 | return NULL; |
53d58d96 TG |
323 | } |
324 | ||
a4551119 | 325 | /* If the bfd_name for this section is a 'canonical' form for which we |
68ffbac6 | 326 | know the Mach-O data, return the segment name and the data for the |
a4551119 | 327 | Mach-O equivalent. Otherwise return NULL. */ |
7ba695a9 | 328 | |
a4551119 TG |
329 | const mach_o_section_name_xlat * |
330 | bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name, | |
331 | const char **segname) | |
53d58d96 | 332 | { |
a4551119 TG |
333 | const struct mach_o_segment_name_xlat *seg; |
334 | const mach_o_section_name_xlat *sec; | |
335 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
336 | *segname = NULL; | |
337 | ||
338 | if (bfd_name[0] != '.') | |
339 | return NULL; | |
340 | ||
341 | /* First try any target-specific translations defined... */ | |
342 | if (bed->segsec_names_xlat) | |
343 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
344 | for (sec = seg->sections; sec->bfd_name; sec++) | |
345 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
346 | { | |
347 | *segname = seg->segname; | |
348 | return sec; | |
349 | } | |
350 | ||
351 | /* ... and then the Mach-O generic ones. */ | |
352 | for (seg = segsec_names_xlat; seg->segname; seg++) | |
353 | for (sec = seg->sections; sec->bfd_name; sec++) | |
354 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
355 | { | |
356 | *segname = seg->segname; | |
357 | return sec; | |
358 | } | |
359 | ||
68ffbac6 | 360 | return NULL; |
a4551119 TG |
361 | } |
362 | ||
363 | /* Convert Mach-O section name to BFD. | |
364 | ||
68ffbac6 | 365 | Try to use standard/canonical names, for which we have tables including |
a4551119 TG |
366 | default flag settings - which are returned. Otherwise forge a new name |
367 | in the form "<segmentname>.<sectionname>" this will be prefixed with | |
368 | LC_SEGMENT. if the segment name does not begin with an underscore. | |
369 | ||
370 | SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL- | |
371 | terminated if the name length is exactly 16 bytes - but must be if the name | |
372 | length is less than 16 characters). */ | |
373 | ||
374 | void | |
375 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname, | |
376 | const char *secname, const char **name, | |
377 | flagword *flags) | |
378 | { | |
379 | const mach_o_section_name_xlat *xlat; | |
53d58d96 TG |
380 | char *res; |
381 | unsigned int len; | |
382 | const char *pfx = ""; | |
383 | ||
a4551119 TG |
384 | *name = NULL; |
385 | *flags = SEC_NO_FLAGS; | |
53d58d96 | 386 | |
68ffbac6 | 387 | /* First search for a canonical name... |
a4551119 TG |
388 | xlat will be non-null if there is an entry for segname, secname. */ |
389 | xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname); | |
390 | if (xlat) | |
391 | { | |
392 | len = strlen (xlat->bfd_name); | |
64d29018 | 393 | res = bfd_alloc (abfd, len + 1); |
a4551119 TG |
394 | if (res == NULL) |
395 | return; | |
396 | memcpy (res, xlat->bfd_name, len+1); | |
397 | *name = res; | |
398 | *flags = xlat->bfd_flags; | |
399 | return; | |
400 | } | |
401 | ||
402 | /* ... else we make up a bfd name from the segment concatenated with the | |
403 | section. */ | |
154a1ee5 | 404 | |
7ba695a9 | 405 | len = 16 + 1 + 16 + 1; |
154a1ee5 | 406 | |
c2f09c75 TG |
407 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
408 | with an underscore. */ | |
f1bde64c | 409 | if (segname[0] != '_') |
c2f09c75 TG |
410 | { |
411 | static const char seg_pfx[] = "LC_SEGMENT."; | |
412 | ||
413 | pfx = seg_pfx; | |
414 | len += sizeof (seg_pfx) - 1; | |
415 | } | |
416 | ||
154a1ee5 TG |
417 | res = bfd_alloc (abfd, len); |
418 | if (res == NULL) | |
8462aec7 | 419 | return; |
a4551119 | 420 | snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname); |
8462aec7 | 421 | *name = res; |
154a1ee5 TG |
422 | } |
423 | ||
a4551119 | 424 | /* Convert a bfd section name to a Mach-O segment + section name. |
154a1ee5 | 425 | |
a4551119 TG |
426 | If the name is a canonical one for which we have a Darwin match |
427 | return the translation table - which contains defaults for flags, | |
428 | type, attribute and default alignment data. | |
429 | ||
68ffbac6 | 430 | Otherwise, expand the bfd_name (assumed to be in the form |
a4551119 TG |
431 | "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */ |
432 | ||
433 | static const mach_o_section_name_xlat * | |
154a1ee5 | 434 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
07d6d2b8 AM |
435 | asection *sect, |
436 | bfd_mach_o_section *section) | |
154a1ee5 | 437 | { |
a4551119 | 438 | const mach_o_section_name_xlat *xlat; |
154a1ee5 | 439 | const char *name = bfd_get_section_name (abfd, sect); |
a4551119 | 440 | const char *segname; |
154a1ee5 TG |
441 | const char *dot; |
442 | unsigned int len; | |
443 | unsigned int seglen; | |
444 | unsigned int seclen; | |
445 | ||
a4551119 TG |
446 | memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1); |
447 | memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1); | |
448 | ||
449 | /* See if is a canonical name ... */ | |
450 | xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname); | |
451 | if (xlat) | |
452 | { | |
453 | strcpy (section->segname, segname); | |
454 | strcpy (section->sectname, xlat->mach_o_name); | |
455 | return xlat; | |
456 | } | |
154a1ee5 | 457 | |
a4551119 TG |
458 | /* .. else we convert our constructed one back to Mach-O. |
459 | Strip LC_SEGMENT. prefix, if present. */ | |
154a1ee5 TG |
460 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
461 | name += 11; | |
462 | ||
463 | /* Find a dot. */ | |
464 | dot = strchr (name, '.'); | |
465 | len = strlen (name); | |
466 | ||
467 | /* Try to split name into segment and section names. */ | |
468 | if (dot && dot != name) | |
469 | { | |
470 | seglen = dot - name; | |
471 | seclen = len - (dot + 1 - name); | |
472 | ||
ca148c5a TG |
473 | if (seglen <= BFD_MACH_O_SEGNAME_SIZE |
474 | && seclen <= BFD_MACH_O_SECTNAME_SIZE) | |
07d6d2b8 AM |
475 | { |
476 | memcpy (section->segname, name, seglen); | |
477 | section->segname[seglen] = 0; | |
478 | memcpy (section->sectname, dot + 1, seclen); | |
479 | section->sectname[seclen] = 0; | |
480 | return NULL; | |
481 | } | |
154a1ee5 TG |
482 | } |
483 | ||
a4551119 TG |
484 | /* The segment and section names are both missing - don't make them |
485 | into dots. */ | |
486 | if (dot && dot == name) | |
487 | return NULL; | |
488 | ||
489 | /* Just duplicate the name into both segment and section. */ | |
154a1ee5 TG |
490 | if (len > 16) |
491 | len = 16; | |
492 | memcpy (section->segname, name, len); | |
493 | section->segname[len] = 0; | |
494 | memcpy (section->sectname, name, len); | |
495 | section->sectname[len] = 0; | |
a4551119 | 496 | return NULL; |
3af9a47b NC |
497 | } |
498 | ||
b2b62060 TG |
499 | /* Return the size of an entry for section SEC. |
500 | Must be called only for symbol pointer section and symbol stubs | |
501 | sections. */ | |
502 | ||
c5012cd8 | 503 | unsigned int |
b2b62060 TG |
504 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
505 | { | |
506 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
507 | { | |
508 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
509 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
510 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
511 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
512 | return sec->reserved2; | |
513 | default: | |
514 | BFD_FAIL (); | |
515 | return 0; | |
516 | } | |
517 | } | |
518 | ||
519 | /* Return the number of indirect symbols for a section. | |
520 | Must be called only for symbol pointer section and symbol stubs | |
521 | sections. */ | |
522 | ||
c5012cd8 | 523 | unsigned int |
b2b62060 TG |
524 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
525 | { | |
526 | unsigned int elsz; | |
527 | ||
528 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); | |
529 | if (elsz == 0) | |
530 | return 0; | |
531 | else | |
532 | return sec->size / elsz; | |
533 | } | |
534 | ||
c9ffd2ea TG |
535 | /* Append command CMD to ABFD. Note that header.ncmds is not updated. */ |
536 | ||
537 | static void | |
538 | bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd) | |
539 | { | |
540 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
541 | ||
542 | if (mdata->last_command != NULL) | |
543 | mdata->last_command->next = cmd; | |
544 | else | |
545 | mdata->first_command = cmd; | |
546 | mdata->last_command = cmd; | |
547 | cmd->next = NULL; | |
548 | } | |
b2b62060 | 549 | |
3af9a47b NC |
550 | /* Copy any private info we understand from the input symbol |
551 | to the output symbol. */ | |
552 | ||
154a1ee5 | 553 | bfd_boolean |
116c20d2 | 554 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
b22161d6 | 555 | asymbol *isymbol, |
116c20d2 | 556 | bfd *obfd ATTRIBUTE_UNUSED, |
b22161d6 IS |
557 | asymbol *osymbol) |
558 | { | |
559 | bfd_mach_o_asymbol *os, *is; | |
c9ffd2ea | 560 | |
b22161d6 IS |
561 | os = (bfd_mach_o_asymbol *)osymbol; |
562 | is = (bfd_mach_o_asymbol *)isymbol; | |
563 | os->n_type = is->n_type; | |
564 | os->n_sect = is->n_sect; | |
565 | os->n_desc = is->n_desc; | |
566 | os->symbol.udata.i = is->symbol.udata.i; | |
c9ffd2ea | 567 | |
b34976b6 | 568 | return TRUE; |
3af9a47b NC |
569 | } |
570 | ||
571 | /* Copy any private info we understand from the input section | |
572 | to the output section. */ | |
573 | ||
154a1ee5 | 574 | bfd_boolean |
c9ffd2ea TG |
575 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection, |
576 | bfd *obfd, asection *osection) | |
a4551119 | 577 | { |
c9ffd2ea TG |
578 | bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection); |
579 | bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection); | |
68ffbac6 | 580 | |
c9ffd2ea TG |
581 | if (ibfd->xvec->flavour != bfd_target_mach_o_flavour |
582 | || obfd->xvec->flavour != bfd_target_mach_o_flavour) | |
583 | return TRUE; | |
584 | ||
585 | BFD_ASSERT (is != NULL && os != NULL); | |
586 | ||
587 | os->flags = is->flags; | |
588 | os->reserved1 = is->reserved1; | |
589 | os->reserved2 = is->reserved2; | |
590 | os->reserved3 = is->reserved3; | |
a4551119 | 591 | |
b34976b6 | 592 | return TRUE; |
3af9a47b NC |
593 | } |
594 | ||
595 | /* Copy any private info we understand from the input bfd | |
596 | to the output bfd. */ | |
597 | ||
154a1ee5 | 598 | bfd_boolean |
967b2c53 | 599 | bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 600 | { |
c9ffd2ea TG |
601 | bfd_mach_o_data_struct *imdata; |
602 | bfd_mach_o_data_struct *omdata; | |
603 | bfd_mach_o_load_command *icmd; | |
604 | ||
154a1ee5 TG |
605 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
606 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
607 | return TRUE; | |
608 | ||
3af9a47b NC |
609 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
610 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
611 | ||
c9ffd2ea TG |
612 | imdata = bfd_mach_o_get_data (ibfd); |
613 | omdata = bfd_mach_o_get_data (obfd); | |
614 | ||
615 | /* Copy header flags. */ | |
616 | omdata->header.flags = imdata->header.flags; | |
617 | ||
618 | /* Copy commands. */ | |
619 | for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next) | |
620 | { | |
621 | bfd_mach_o_load_command *ocmd; | |
622 | ||
623 | switch (icmd->type) | |
624 | { | |
625 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
626 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
627 | case BFD_MACH_O_LC_DYLD_INFO: | |
628 | /* Command is copied. */ | |
629 | ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command)); | |
630 | if (ocmd == NULL) | |
631 | return FALSE; | |
632 | ||
633 | /* Copy common fields. */ | |
634 | ocmd->type = icmd->type; | |
635 | ocmd->type_required = icmd->type_required; | |
636 | ocmd->offset = 0; | |
637 | ocmd->len = icmd->len; | |
638 | break; | |
639 | ||
640 | default: | |
641 | /* Command is not copied. */ | |
642 | continue; | |
643 | break; | |
644 | } | |
645 | ||
646 | switch (icmd->type) | |
647 | { | |
648 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
649 | { | |
650 | bfd_mach_o_dylib_command *idy = &icmd->command.dylib; | |
651 | bfd_mach_o_dylib_command *ody = &ocmd->command.dylib; | |
652 | ||
653 | ody->name_offset = idy->name_offset; | |
654 | ody->timestamp = idy->timestamp; | |
655 | ody->current_version = idy->current_version; | |
656 | ody->compatibility_version = idy->compatibility_version; | |
657 | ody->name_str = idy->name_str; | |
658 | } | |
659 | break; | |
660 | ||
661 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
662 | { | |
663 | bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker; | |
664 | bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker; | |
665 | ||
666 | ody->name_offset = idy->name_offset; | |
667 | ody->name_str = idy->name_str; | |
668 | } | |
669 | break; | |
670 | ||
671 | case BFD_MACH_O_LC_DYLD_INFO: | |
672 | { | |
673 | bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info; | |
674 | bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info; | |
675 | ||
676 | if (bfd_mach_o_read_dyld_content (ibfd, idy)) | |
677 | { | |
678 | ody->rebase_size = idy->rebase_size; | |
679 | ody->rebase_content = idy->rebase_content; | |
680 | ||
681 | ody->bind_size = idy->bind_size; | |
682 | ody->bind_content = idy->bind_content; | |
683 | ||
684 | ody->weak_bind_size = idy->weak_bind_size; | |
685 | ody->weak_bind_content = idy->weak_bind_content; | |
686 | ||
687 | ody->lazy_bind_size = idy->lazy_bind_size; | |
688 | ody->lazy_bind_content = idy->lazy_bind_content; | |
689 | ||
690 | ody->export_size = idy->export_size; | |
691 | ody->export_content = idy->export_content; | |
692 | } | |
86eafac0 NC |
693 | /* PR 17512L: file: 730e492d. */ |
694 | else | |
695 | { | |
1b786873 L |
696 | ody->rebase_size = |
697 | ody->bind_size = | |
698 | ody->weak_bind_size = | |
699 | ody->lazy_bind_size = | |
86eafac0 | 700 | ody->export_size = 0; |
1b786873 L |
701 | ody->rebase_content = |
702 | ody->bind_content = | |
703 | ody->weak_bind_content = | |
704 | ody->lazy_bind_content = | |
86eafac0 NC |
705 | ody->export_content = NULL; |
706 | } | |
c9ffd2ea TG |
707 | } |
708 | break; | |
709 | ||
710 | default: | |
711 | /* That command should be handled. */ | |
712 | abort (); | |
713 | } | |
714 | ||
715 | /* Insert command. */ | |
716 | bfd_mach_o_append_command (obfd, ocmd); | |
717 | } | |
154a1ee5 | 718 | |
b34976b6 | 719 | return TRUE; |
3af9a47b NC |
720 | } |
721 | ||
0c9ef0f0 TG |
722 | /* This allows us to set up to 32 bits of flags (unless we invent some |
723 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
724 | without error checking - just overwrite. */ | |
68ffbac6 | 725 | |
0c9ef0f0 TG |
726 | bfd_boolean |
727 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) | |
728 | { | |
729 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
730 | ||
731 | if (!mdata) | |
732 | return FALSE; | |
733 | ||
734 | mdata->header.flags = flags; | |
735 | return TRUE; | |
736 | } | |
737 | ||
046b007d | 738 | /* Count the total number of symbols. */ |
154a1ee5 | 739 | |
3af9a47b | 740 | static long |
116c20d2 | 741 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 742 | { |
046b007d | 743 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 744 | |
046b007d TG |
745 | if (mdata->symtab == NULL) |
746 | return 0; | |
747 | return mdata->symtab->nsyms; | |
3af9a47b NC |
748 | } |
749 | ||
154a1ee5 | 750 | long |
116c20d2 | 751 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
752 | { |
753 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
754 | ||
3af9a47b NC |
755 | return ((nsyms + 1) * sizeof (asymbol *)); |
756 | } | |
757 | ||
154a1ee5 | 758 | long |
116c20d2 | 759 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 760 | { |
046b007d | 761 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 762 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
763 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
764 | unsigned long j; | |
3af9a47b NC |
765 | |
766 | if (nsyms < 0) | |
767 | return nsyms; | |
768 | ||
092d27ff TG |
769 | if (nsyms == 0) |
770 | { | |
771 | /* Do not try to read symbols if there are none. */ | |
772 | alocation[0] = NULL; | |
773 | return 0; | |
774 | } | |
775 | ||
afbb9e17 | 776 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 777 | { |
4eca0228 | 778 | _bfd_error_handler |
07d6d2b8 | 779 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); |
046b007d TG |
780 | return 0; |
781 | } | |
3af9a47b | 782 | |
046b007d | 783 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 784 | |
046b007d TG |
785 | for (j = 0; j < sym->nsyms; j++) |
786 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 787 | |
046b007d | 788 | alocation[j] = NULL; |
a95a4550 | 789 | |
3af9a47b NC |
790 | return nsyms; |
791 | } | |
792 | ||
aeefa1c9 TG |
793 | /* Create synthetic symbols for indirect symbols. */ |
794 | ||
b2b62060 TG |
795 | long |
796 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
07d6d2b8 AM |
797 | long symcount ATTRIBUTE_UNUSED, |
798 | asymbol **syms ATTRIBUTE_UNUSED, | |
799 | long dynsymcount ATTRIBUTE_UNUSED, | |
800 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
801 | asymbol **ret) | |
b2b62060 TG |
802 | { |
803 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
804 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
805 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
806 | asymbol *s; | |
896ca098 NC |
807 | char * s_start; |
808 | char * s_end; | |
b2b62060 TG |
809 | unsigned long count, i, j, n; |
810 | size_t size; | |
811 | char *names; | |
812 | char *nul_name; | |
896ca098 | 813 | const char stub [] = "$stub"; |
b2b62060 TG |
814 | |
815 | *ret = NULL; | |
816 | ||
aeefa1c9 | 817 | /* Stop now if no symbols or no indirect symbols. */ |
896ca098 NC |
818 | if (dysymtab == NULL || dysymtab->nindirectsyms == 0 |
819 | || symtab == NULL || symtab->symbols == NULL) | |
b2b62060 TG |
820 | return 0; |
821 | ||
aeefa1c9 TG |
822 | /* We need to allocate a bfd symbol for every indirect symbol and to |
823 | allocate the memory for its name. */ | |
b2b62060 TG |
824 | count = dysymtab->nindirectsyms; |
825 | size = count * sizeof (asymbol) + 1; | |
826 | ||
827 | for (j = 0; j < count; j++) | |
828 | { | |
896ca098 | 829 | const char * strng; |
b2b62060 | 830 | unsigned int isym = dysymtab->indirect_syms[j]; |
aeefa1c9 TG |
831 | |
832 | /* Some indirect symbols are anonymous. */ | |
896ca098 NC |
833 | if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name)) |
834 | /* PR 17512: file: f5b8eeba. */ | |
835 | size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub); | |
b2b62060 TG |
836 | } |
837 | ||
896ca098 NC |
838 | s_start = bfd_malloc (size); |
839 | s = *ret = (asymbol *) s_start; | |
b2b62060 TG |
840 | if (s == NULL) |
841 | return -1; | |
842 | names = (char *) (s + count); | |
843 | nul_name = names; | |
844 | *names++ = 0; | |
896ca098 | 845 | s_end = s_start + size; |
68ffbac6 | 846 | |
b2b62060 TG |
847 | n = 0; |
848 | for (i = 0; i < mdata->nsects; i++) | |
849 | { | |
850 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 851 | unsigned int first, last; |
b2b62060 TG |
852 | bfd_vma addr; |
853 | bfd_vma entry_size; | |
68ffbac6 | 854 | |
b2b62060 | 855 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
07d6d2b8 AM |
856 | { |
857 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
858 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
859 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
860 | /* Only these sections have indirect symbols. */ | |
861 | first = sec->reserved1; | |
862 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
863 | addr = sec->addr; | |
864 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
896ca098 NC |
865 | |
866 | /* PR 17512: file: 08e15eec. */ | |
867 | if (first >= count || last >= count || first > last) | |
868 | goto fail; | |
869 | ||
07d6d2b8 AM |
870 | for (j = first; j < last; j++) |
871 | { | |
872 | unsigned int isym = dysymtab->indirect_syms[j]; | |
b2b62060 | 873 | |
896ca098 NC |
874 | /* PR 17512: file: 04d64d9b. */ |
875 | if (((char *) s) + sizeof (* s) > s_end) | |
876 | goto fail; | |
877 | ||
07d6d2b8 AM |
878 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
879 | s->section = sec->bfdsection; | |
880 | s->value = addr - sec->addr; | |
881 | s->udata.p = NULL; | |
68ffbac6 | 882 | |
07d6d2b8 AM |
883 | if (isym < symtab->nsyms |
884 | && symtab->symbols[isym].symbol.name) | |
885 | { | |
886 | const char *sym = symtab->symbols[isym].symbol.name; | |
887 | size_t len; | |
b2b62060 | 888 | |
07d6d2b8 AM |
889 | s->name = names; |
890 | len = strlen (sym); | |
896ca098 NC |
891 | /* PR 17512: file: 47dfd4d2. */ |
892 | if (names + len >= s_end) | |
893 | goto fail; | |
07d6d2b8 AM |
894 | memcpy (names, sym, len); |
895 | names += len; | |
896ca098 NC |
896 | /* PR 17512: file: 18f340a4. */ |
897 | if (names + sizeof (stub) >= s_end) | |
898 | goto fail; | |
07d6d2b8 AM |
899 | memcpy (names, stub, sizeof (stub)); |
900 | names += sizeof (stub); | |
901 | } | |
902 | else | |
903 | s->name = nul_name; | |
904 | ||
905 | addr += entry_size; | |
906 | s++; | |
907 | n++; | |
908 | } | |
909 | break; | |
910 | default: | |
911 | break; | |
912 | } | |
b2b62060 TG |
913 | } |
914 | ||
915 | return n; | |
896ca098 NC |
916 | |
917 | fail: | |
918 | free (s_start); | |
919 | * ret = NULL; | |
920 | return -1; | |
b2b62060 TG |
921 | } |
922 | ||
154a1ee5 | 923 | void |
116c20d2 NC |
924 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
925 | asymbol *symbol, | |
926 | symbol_info *ret) | |
3af9a47b NC |
927 | { |
928 | bfd_symbol_info (symbol, ret); | |
929 | } | |
930 | ||
154a1ee5 | 931 | void |
116c20d2 | 932 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 933 | void * afile, |
116c20d2 NC |
934 | asymbol *symbol, |
935 | bfd_print_symbol_type how) | |
3af9a47b NC |
936 | { |
937 | FILE *file = (FILE *) afile; | |
15e1c58a | 938 | const char *name; |
92bc0e80 | 939 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
940 | |
941 | switch (how) | |
942 | { | |
943 | case bfd_print_symbol_name: | |
944 | fprintf (file, "%s", symbol->name); | |
945 | break; | |
946 | default: | |
91d6fa6a | 947 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
948 | if (asym->n_type & BFD_MACH_O_N_STAB) |
949 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 950 | else |
92bc0e80 | 951 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
952 | { |
953 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
954 | if (symbol->value == 0) |
955 | name = "UND"; | |
956 | else | |
957 | name = "COM"; | |
15e1c58a TG |
958 | break; |
959 | case BFD_MACH_O_N_ABS: | |
960 | name = "ABS"; | |
961 | break; | |
962 | case BFD_MACH_O_N_INDR: | |
963 | name = "INDR"; | |
964 | break; | |
965 | case BFD_MACH_O_N_PBUD: | |
966 | name = "PBUD"; | |
967 | break; | |
968 | case BFD_MACH_O_N_SECT: | |
969 | name = "SECT"; | |
970 | break; | |
971 | default: | |
972 | name = "???"; | |
973 | break; | |
974 | } | |
975 | if (name == NULL) | |
976 | name = ""; | |
92bc0e80 | 977 | fprintf (file, " %02x %-6s %02x %04x", |
07d6d2b8 | 978 | asym->n_type, name, asym->n_sect, asym->n_desc); |
92bc0e80 TG |
979 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 |
980 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 981 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 982 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
983 | } |
984 | } | |
985 | ||
986 | static void | |
116c20d2 | 987 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 988 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
989 | enum bfd_architecture *type, |
990 | unsigned long *subtype) | |
3af9a47b NC |
991 | { |
992 | *subtype = bfd_arch_unknown; | |
993 | ||
994 | switch (mtype) | |
995 | { | |
0b2de107 TG |
996 | case BFD_MACH_O_CPU_TYPE_VAX: |
997 | *type = bfd_arch_vax; | |
998 | break; | |
999 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1000 | *type = bfd_arch_m68k; | |
1001 | break; | |
1e8a024a TG |
1002 | case BFD_MACH_O_CPU_TYPE_I386: |
1003 | *type = bfd_arch_i386; | |
1004 | *subtype = bfd_mach_i386_i386; | |
1005 | break; | |
1006 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
1007 | *type = bfd_arch_i386; | |
1008 | *subtype = bfd_mach_x86_64; | |
1009 | break; | |
0b2de107 TG |
1010 | case BFD_MACH_O_CPU_TYPE_MIPS: |
1011 | *type = bfd_arch_mips; | |
1012 | break; | |
1013 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
1014 | *type = bfd_arch_m98k; | |
1015 | break; | |
1016 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
1017 | *type = bfd_arch_hppa; | |
1018 | break; | |
1019 | case BFD_MACH_O_CPU_TYPE_ARM: | |
1020 | *type = bfd_arch_arm; | |
1021 | switch (msubtype) | |
07d6d2b8 AM |
1022 | { |
1023 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
1024 | *subtype = bfd_mach_arm_4T; | |
1025 | break; | |
1026 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
1027 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
1028 | break; | |
1029 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
1030 | *subtype = bfd_mach_arm_5TE; | |
1031 | break; | |
1032 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
1033 | *subtype = bfd_mach_arm_XScale; | |
1034 | break; | |
1035 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
1036 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
1037 | break; | |
1038 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
1039 | default: | |
1040 | break; | |
1041 | } | |
0b2de107 | 1042 | break; |
1e8a024a TG |
1043 | case BFD_MACH_O_CPU_TYPE_SPARC: |
1044 | *type = bfd_arch_sparc; | |
1045 | *subtype = bfd_mach_sparc; | |
1046 | break; | |
0b2de107 TG |
1047 | case BFD_MACH_O_CPU_TYPE_ALPHA: |
1048 | *type = bfd_arch_alpha; | |
1049 | break; | |
1e8a024a TG |
1050 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
1051 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1052 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
1053 | break; |
1054 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
1055 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1056 | *subtype = bfd_mach_ppc64; |
1e8a024a | 1057 | break; |
d8028530 TG |
1058 | case BFD_MACH_O_CPU_TYPE_ARM64: |
1059 | *type = bfd_arch_aarch64; | |
1060 | *subtype = bfd_mach_aarch64; | |
1061 | break; | |
3af9a47b | 1062 | default: |
1e8a024a TG |
1063 | *type = bfd_arch_unknown; |
1064 | break; | |
3af9a47b NC |
1065 | } |
1066 | } | |
a95a4550 | 1067 | |
c9ffd2ea TG |
1068 | /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the |
1069 | number of bytes written or -1 in case of error. */ | |
1070 | ||
1071 | static int | |
1072 | bfd_mach_o_pad4 (bfd *abfd, unsigned int len) | |
1073 | { | |
1074 | if (len % 4 != 0) | |
1075 | { | |
1076 | char pad[4] = {0,0,0,0}; | |
1077 | unsigned int padlen = 4 - (len % 4); | |
1078 | ||
1079 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1080 | return -1; | |
1081 | ||
1082 | return padlen; | |
1083 | } | |
1084 | else | |
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | /* Likewise, but for a command. */ | |
1089 | ||
1090 | static int | |
1091 | bfd_mach_o_pad_command (bfd *abfd, unsigned int len) | |
1092 | { | |
1093 | unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
1094 | ||
1095 | if (len % align != 0) | |
1096 | { | |
1097 | char pad[8] = {0}; | |
1098 | unsigned int padlen = align - (len % align); | |
1099 | ||
1100 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1101 | return -1; | |
1102 | ||
1103 | return padlen; | |
1104 | } | |
1105 | else | |
1106 | return 0; | |
1107 | } | |
1108 | ||
154a1ee5 | 1109 | static bfd_boolean |
116c20d2 NC |
1110 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
1111 | { | |
46d1c23b | 1112 | struct mach_o_header_external raw; |
1e8a024a TG |
1113 | unsigned int size; |
1114 | ||
c2f09c75 | 1115 | size = mach_o_wide_p (header) ? |
154a1ee5 | 1116 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 1117 | |
46d1c23b TG |
1118 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
1119 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
1120 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
1121 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
1122 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
1123 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
1124 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 1125 | |
c2f09c75 | 1126 | if (mach_o_wide_p (header)) |
46d1c23b | 1127 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 1128 | |
c2f09c75 | 1129 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1130 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 1131 | return FALSE; |
116c20d2 | 1132 | |
154a1ee5 | 1133 | return TRUE; |
116c20d2 NC |
1134 | } |
1135 | ||
452216ab | 1136 | static bfd_boolean |
ab273af8 | 1137 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
1138 | { |
1139 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1140 | unsigned int i; | |
46d1c23b | 1141 | struct mach_o_thread_command_external raw; |
92bc0e80 | 1142 | unsigned int offset; |
116c20d2 NC |
1143 | |
1144 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1145 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1146 | ||
c9ffd2ea | 1147 | offset = BFD_MACH_O_LC_SIZE; |
116c20d2 NC |
1148 | for (i = 0; i < cmd->nflavours; i++) |
1149 | { | |
1150 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b | 1151 | BFD_ASSERT (cmd->flavours[i].offset == |
07d6d2b8 | 1152 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); |
116c20d2 | 1153 | |
46d1c23b TG |
1154 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
1155 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 1156 | |
c2f09c75 | 1157 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 1158 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 1159 | return FALSE; |
116c20d2 | 1160 | |
46d1c23b | 1161 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
1162 | } |
1163 | ||
452216ab | 1164 | return TRUE; |
116c20d2 NC |
1165 | } |
1166 | ||
c9ffd2ea TG |
1167 | static bfd_boolean |
1168 | bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command) | |
1169 | { | |
1170 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
1171 | struct mach_o_str_command_external raw; | |
1172 | unsigned int namelen; | |
1173 | ||
1174 | bfd_h_put_32 (abfd, cmd->name_offset, raw.str); | |
1175 | ||
1176 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1177 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1178 | return FALSE; | |
1179 | ||
1180 | namelen = strlen (cmd->name_str) + 1; | |
1181 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1182 | return FALSE; | |
1183 | ||
1184 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1185 | return FALSE; | |
1186 | ||
1187 | return TRUE; | |
1188 | } | |
1189 | ||
1190 | static bfd_boolean | |
1191 | bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command) | |
1192 | { | |
1193 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
1194 | struct mach_o_dylib_command_external raw; | |
1195 | unsigned int namelen; | |
1196 | ||
1197 | bfd_h_put_32 (abfd, cmd->name_offset, raw.name); | |
1198 | bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp); | |
1199 | bfd_h_put_32 (abfd, cmd->current_version, raw.current_version); | |
1200 | bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version); | |
1201 | ||
1202 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1203 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1204 | return FALSE; | |
1205 | ||
1206 | namelen = strlen (cmd->name_str) + 1; | |
1207 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1208 | return FALSE; | |
1209 | ||
1210 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1211 | return FALSE; | |
1212 | ||
1213 | return TRUE; | |
1214 | } | |
1215 | ||
1216 | static bfd_boolean | |
1217 | bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command) | |
1218 | { | |
1219 | bfd_mach_o_main_command *cmd = &command->command.main; | |
1220 | struct mach_o_entry_point_command_external raw; | |
1221 | ||
1222 | bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff); | |
1223 | bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize); | |
1224 | ||
1225 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1226 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1227 | return FALSE; | |
1228 | ||
1229 | return TRUE; | |
1230 | } | |
1231 | ||
1232 | static bfd_boolean | |
1233 | bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) | |
1234 | { | |
1235 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
1236 | struct mach_o_dyld_info_command_external raw; | |
1237 | ||
1238 | bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off); | |
1239 | bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size); | |
1240 | bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off); | |
1241 | bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size); | |
1242 | bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off); | |
1243 | bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size); | |
1244 | bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off); | |
1245 | bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size); | |
1246 | bfd_h_put_32 (abfd, cmd->export_off, raw.export_off); | |
1247 | bfd_h_put_32 (abfd, cmd->export_size, raw.export_size); | |
1248 | ||
1249 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1250 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1251 | return FALSE; | |
1252 | ||
1253 | if (cmd->rebase_size != 0) | |
1254 | if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0 | |
1255 | || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) != | |
1256 | cmd->rebase_size)) | |
1257 | return FALSE; | |
1258 | ||
1259 | if (cmd->bind_size != 0) | |
1260 | if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0 | |
1261 | || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) != | |
1262 | cmd->bind_size)) | |
1263 | return FALSE; | |
1264 | ||
1265 | if (cmd->weak_bind_size != 0) | |
1266 | if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0 | |
1267 | || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) != | |
1268 | cmd->weak_bind_size)) | |
1269 | return FALSE; | |
1270 | ||
1271 | if (cmd->lazy_bind_size != 0) | |
1272 | if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0 | |
1273 | || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) != | |
1274 | cmd->lazy_bind_size)) | |
1275 | return FALSE; | |
1276 | ||
1277 | if (cmd->export_size != 0) | |
1278 | if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0 | |
1279 | || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) != | |
1280 | cmd->export_size)) | |
1281 | return FALSE; | |
1282 | ||
1283 | return TRUE; | |
1284 | } | |
1285 | ||
92bc0e80 TG |
1286 | long |
1287 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 1288 | asection *asect) |
92bc0e80 TG |
1289 | { |
1290 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1291 | } | |
1292 | ||
19765f52 IS |
1293 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1294 | of the fields in the relocation information vary per target endian-ness. */ | |
1295 | ||
bcb51645 | 1296 | void |
19765f52 IS |
1297 | bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel, |
1298 | unsigned char *fields) | |
1299 | { | |
1300 | unsigned char info = fields[3]; | |
1301 | ||
1302 | if (bfd_big_endian (abfd)) | |
1303 | { | |
1304 | rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2]; | |
1305 | rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1306 | rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0; | |
68ffbac6 | 1307 | rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT) |
19765f52 IS |
1308 | & BFD_MACH_O_LENGTH_MASK; |
1309 | rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0; | |
1310 | } | |
1311 | else | |
1312 | { | |
1313 | rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0]; | |
1314 | rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1315 | rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0; | |
68ffbac6 | 1316 | rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT) |
19765f52 IS |
1317 | & BFD_MACH_O_LENGTH_MASK; |
1318 | rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0; | |
1319 | } | |
1320 | } | |
1321 | ||
bcb51645 TG |
1322 | /* Set syms_ptr_ptr and addend of RES. */ |
1323 | ||
1324 | bfd_boolean | |
1325 | bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd, | |
1326 | bfd_mach_o_reloc_info *reloc, | |
1327 | arelent *res, asymbol **syms) | |
92bc0e80 | 1328 | { |
046b007d | 1329 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bcb51645 | 1330 | unsigned int num; |
b32e07d7 TG |
1331 | asymbol **sym; |
1332 | ||
bcb51645 TG |
1333 | /* Non-scattered relocation. */ |
1334 | reloc->r_scattered = 0; | |
1335 | res->addend = 0; | |
1336 | ||
1337 | num = reloc->r_value; | |
1338 | ||
1339 | if (reloc->r_extern) | |
1340 | { | |
1341 | /* PR 17512: file: 8396-1185-0.004. */ | |
1342 | if (num >= (unsigned) bfd_mach_o_count_symbols (abfd)) | |
1343 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1344 | else if (syms == NULL) | |
1345 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1346 | else | |
1347 | /* An external symbol number. */ | |
1348 | sym = syms + num; | |
1349 | } | |
1350 | else if (num == 0x00ffffff || num == 0) | |
1351 | { | |
1352 | /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this | |
1353 | is generic code, we don't know wether this is really a PAIR. | |
1354 | This value is almost certainly not a valid section number, hence | |
1355 | this specific case to avoid an assertion failure. | |
1356 | Target specific swap_reloc_in routine should adjust that. */ | |
1357 | sym = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1358 | } | |
1359 | else | |
1360 | { | |
1361 | /* PR 17512: file: 006-2964-0.004. */ | |
1362 | if (num > mdata->nsects) | |
1363 | return FALSE; | |
1364 | ||
1365 | /* A section number. */ | |
1366 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1367 | /* For a symbol defined in section S, the addend (stored in the | |
1368 | binary) contains the address of the section. To comply with | |
1369 | bfd convention, subtract the section address. | |
1370 | Use the address from the header, so that the user can modify | |
07d6d2b8 | 1371 | the vma of the section. */ |
bcb51645 TG |
1372 | res->addend = -mdata->sections[num - 1]->addr; |
1373 | } | |
1374 | ||
1375 | /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset | |
1376 | in the lower 16bits of the address value. So we have to find the | |
1377 | 'symbol' from the preceding reloc. We do this even though the | |
1378 | section symbol is probably not needed here, because NULL symbol | |
1379 | values cause an assert in generic BFD code. This must be done in | |
1380 | the PPC swap_reloc_in routine. */ | |
1381 | res->sym_ptr_ptr = sym; | |
1382 | ||
1383 | return TRUE; | |
1384 | } | |
1385 | ||
1386 | /* Do most of the work for canonicalize_relocs on RAW: create internal | |
1387 | representation RELOC and set most fields of RES using symbol table SYMS. | |
1388 | Each target still has to set the howto of RES and possibly adjust other | |
1389 | fields. | |
1390 | Previously the Mach-O hook point was simply swap_in, but some targets | |
1391 | (like arm64) don't follow the generic rules (symnum is a value for the | |
1392 | non-scattered relocation ADDEND). */ | |
1393 | ||
1394 | bfd_boolean | |
1395 | bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd, | |
1396 | struct mach_o_reloc_info_external *raw, | |
1397 | bfd_mach_o_reloc_info *reloc, | |
1398 | arelent *res, asymbol **syms) | |
1399 | { | |
1400 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1401 | bfd_vma addr; | |
1402 | ||
46d1c23b | 1403 | addr = bfd_get_32 (abfd, raw->r_address); |
19765f52 IS |
1404 | res->sym_ptr_ptr = NULL; |
1405 | res->addend = 0; | |
f4716ee2 | 1406 | |
b32e07d7 TG |
1407 | if (addr & BFD_MACH_O_SR_SCATTERED) |
1408 | { | |
1409 | unsigned int j; | |
19765f52 | 1410 | bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum); |
b32e07d7 | 1411 | |
19765f52 | 1412 | /* Scattered relocation, can't be extern. */ |
bcb51645 TG |
1413 | reloc->r_scattered = 1; |
1414 | reloc->r_extern = 0; | |
19765f52 IS |
1415 | |
1416 | /* Extract section and offset from r_value (symnum). */ | |
bcb51645 | 1417 | reloc->r_value = symnum; |
19765f52 IS |
1418 | /* FIXME: This breaks when a symbol in a reloc exactly follows the |
1419 | end of the data for the section (e.g. in a calculation of section | |
1420 | data length). At present, the symbol will end up associated with | |
1421 | the following section or, if it falls within alignment padding, as | |
1422 | null - which will assert later. */ | |
b32e07d7 | 1423 | for (j = 0; j < mdata->nsects; j++) |
07d6d2b8 AM |
1424 | { |
1425 | bfd_mach_o_section *sect = mdata->sections[j]; | |
1426 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
1427 | { | |
1428 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1429 | res->addend = symnum - sect->addr; | |
1430 | break; | |
1431 | } | |
1432 | } | |
19765f52 IS |
1433 | |
1434 | /* Extract the info and address fields from r_address. */ | |
bcb51645 TG |
1435 | reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
1436 | reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1437 | reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
1438 | reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr); | |
19765f52 | 1439 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); |
b32e07d7 TG |
1440 | } |
1441 | else | |
1442 | { | |
19765f52 | 1443 | /* Non-scattered relocation. */ |
bcb51645 TG |
1444 | reloc->r_scattered = 0; |
1445 | reloc->r_address = addr; | |
1446 | res->address = addr; | |
f4716ee2 | 1447 | |
19765f52 | 1448 | /* The value and info fields have to be extracted dependent on target |
07d6d2b8 | 1449 | endian-ness. */ |
bcb51645 | 1450 | bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum); |
19765f52 | 1451 | |
bcb51645 TG |
1452 | if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc, |
1453 | res, syms)) | |
1454 | return FALSE; | |
b32e07d7 | 1455 | } |
f4716ee2 TG |
1456 | |
1457 | /* We have set up a reloc with all the information present, so the swapper | |
1458 | can modify address, value and addend fields, if necessary, to convey | |
1459 | information in the generic BFD reloc that is mach-o specific. */ | |
19765f52 | 1460 | |
bcb51645 | 1461 | return TRUE; |
b32e07d7 TG |
1462 | } |
1463 | ||
1464 | static int | |
1465 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
07d6d2b8 AM |
1466 | unsigned long count, |
1467 | arelent *res, asymbol **syms) | |
b32e07d7 | 1468 | { |
bcb51645 | 1469 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
92bc0e80 | 1470 | unsigned long i; |
46d1c23b | 1471 | struct mach_o_reloc_info_external *native_relocs; |
92bc0e80 TG |
1472 | bfd_size_type native_size; |
1473 | ||
92bc0e80 | 1474 | /* Allocate and read relocs. */ |
b32e07d7 | 1475 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
033539e2 | 1476 | |
64d29018 NC |
1477 | /* PR 17512: file: 09477b57. */ |
1478 | if (native_size < count) | |
1479 | return -1; | |
1480 | ||
46d1c23b TG |
1481 | native_relocs = |
1482 | (struct mach_o_reloc_info_external *) bfd_malloc (native_size); | |
92bc0e80 TG |
1483 | if (native_relocs == NULL) |
1484 | return -1; | |
1485 | ||
b32e07d7 | 1486 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
92bc0e80 | 1487 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
b32e07d7 TG |
1488 | goto err; |
1489 | ||
1490 | for (i = 0; i < count; i++) | |
92bc0e80 | 1491 | { |
bcb51645 | 1492 | if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i], |
ca4cf9b9 | 1493 | &res[i], syms, res)) |
07d6d2b8 | 1494 | goto err; |
92bc0e80 | 1495 | } |
b32e07d7 TG |
1496 | free (native_relocs); |
1497 | return i; | |
1498 | err: | |
1499 | free (native_relocs); | |
1500 | return -1; | |
1501 | } | |
1502 | ||
1503 | long | |
1504 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
07d6d2b8 | 1505 | arelent **rels, asymbol **syms) |
b32e07d7 TG |
1506 | { |
1507 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1508 | unsigned long i; | |
1509 | arelent *res; | |
1510 | ||
1511 | if (asect->reloc_count == 0) | |
1512 | return 0; | |
1513 | ||
1514 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1515 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 | 1516 | return 0; |
92bc0e80 | 1517 | |
dff55db0 | 1518 | if (asect->relocation == NULL) |
92bc0e80 | 1519 | { |
64d29018 NC |
1520 | if (asect->reloc_count * sizeof (arelent) < asect->reloc_count) |
1521 | return -1; | |
dff55db0 TG |
1522 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); |
1523 | if (res == NULL) | |
07d6d2b8 | 1524 | return -1; |
dff55db0 TG |
1525 | |
1526 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
07d6d2b8 AM |
1527 | asect->reloc_count, res, syms) < 0) |
1528 | { | |
1529 | free (res); | |
1530 | return -1; | |
1531 | } | |
dff55db0 | 1532 | asect->relocation = res; |
92bc0e80 TG |
1533 | } |
1534 | ||
dff55db0 | 1535 | res = asect->relocation; |
92bc0e80 | 1536 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1537 | rels[i] = &res[i]; |
1538 | rels[i] = NULL; | |
92bc0e80 | 1539 | |
b32e07d7 TG |
1540 | return i; |
1541 | } | |
92bc0e80 | 1542 | |
b32e07d7 TG |
1543 | long |
1544 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1545 | { | |
1546 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1547 | |
b32e07d7 TG |
1548 | if (mdata->dysymtab == NULL) |
1549 | return 1; | |
dff55db0 | 1550 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1551 | * sizeof (arelent *); |
1552 | } | |
92bc0e80 | 1553 | |
b32e07d7 TG |
1554 | long |
1555 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
07d6d2b8 | 1556 | struct bfd_symbol **syms) |
b32e07d7 TG |
1557 | { |
1558 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1559 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1560 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1561 | unsigned long i; | |
1562 | arelent *res; | |
1563 | ||
1564 | if (dysymtab == NULL) | |
1565 | return 0; | |
1566 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1567 | return 0; | |
1568 | ||
1569 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1570 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 TG |
1571 | return 0; |
1572 | ||
dff55db0 | 1573 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1574 | { |
64d29018 NC |
1575 | if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent) |
1576 | < (dysymtab->nextrel + dysymtab->nlocrel)) | |
1577 | return -1; | |
1578 | ||
dff55db0 | 1579 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) |
07d6d2b8 | 1580 | * sizeof (arelent)); |
dff55db0 | 1581 | if (res == NULL) |
07d6d2b8 | 1582 | return -1; |
b32e07d7 | 1583 | |
dff55db0 | 1584 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
07d6d2b8 AM |
1585 | dysymtab->nextrel, res, syms) < 0) |
1586 | { | |
1587 | free (res); | |
1588 | return -1; | |
1589 | } | |
dff55db0 TG |
1590 | |
1591 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
07d6d2b8 AM |
1592 | dysymtab->nlocrel, |
1593 | res + dysymtab->nextrel, syms) < 0) | |
1594 | { | |
1595 | free (res); | |
1596 | return -1; | |
1597 | } | |
dff55db0 TG |
1598 | |
1599 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1600 | } |
1601 | ||
dff55db0 | 1602 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1603 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1604 | rels[i] = &res[i]; | |
1605 | rels[i] = NULL; | |
92bc0e80 TG |
1606 | return i; |
1607 | } | |
1608 | ||
19765f52 IS |
1609 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1610 | of the fields in the relocation information vary per target endian-ness. */ | |
1611 | ||
1612 | static void | |
1613 | bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields, | |
1614 | bfd_mach_o_reloc_info *rel) | |
1615 | { | |
1616 | unsigned char info = 0; | |
1617 | ||
1618 | BFD_ASSERT (rel->r_type <= 15); | |
1619 | BFD_ASSERT (rel->r_length <= 3); | |
1620 | ||
1621 | if (bfd_big_endian (abfd)) | |
1622 | { | |
1623 | fields[0] = (rel->r_value >> 16) & 0xff; | |
1624 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1625 | fields[2] = rel->r_value & 0xff; | |
1626 | info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT; | |
1627 | info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0; | |
1628 | info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT; | |
1629 | info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0; | |
1630 | } | |
1631 | else | |
1632 | { | |
1633 | fields[2] = (rel->r_value >> 16) & 0xff; | |
1634 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1635 | fields[0] = rel->r_value & 0xff; | |
1636 | info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT; | |
1637 | info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0; | |
1638 | info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT; | |
1639 | info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0; | |
1640 | } | |
1641 | fields[3] = info; | |
1642 | } | |
1643 | ||
92bc0e80 | 1644 | static bfd_boolean |
ab273af8 | 1645 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1646 | { |
92bc0e80 TG |
1647 | unsigned int i; |
1648 | arelent **entries; | |
1649 | asection *sec; | |
1650 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1651 | ||
1652 | sec = section->bfdsection; | |
1653 | if (sec->reloc_count == 0) | |
1654 | return TRUE; | |
1655 | ||
1656 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1657 | return TRUE; | |
1658 | ||
92bc0e80 TG |
1659 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
1660 | return FALSE; | |
1661 | ||
1662 | /* Convert and write. */ | |
1663 | entries = section->bfdsection->orelocation; | |
1664 | for (i = 0; i < section->nreloc; i++) | |
1665 | { | |
1666 | arelent *rel = entries[i]; | |
46d1c23b | 1667 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1668 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1669 | ||
1670 | /* Convert relocation to an intermediate representation. */ | |
1671 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
07d6d2b8 | 1672 | return FALSE; |
92bc0e80 TG |
1673 | |
1674 | /* Lower the relocation info. */ | |
1675 | if (pinfo->r_scattered) | |
07d6d2b8 AM |
1676 | { |
1677 | unsigned long v; | |
1678 | ||
1679 | v = BFD_MACH_O_SR_SCATTERED | |
1680 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1681 | | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length) | |
1682 | | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type) | |
1683 | | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address); | |
1684 | /* Note: scattered relocs have field in reverse order... */ | |
1685 | bfd_put_32 (abfd, v, raw.r_address); | |
1686 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
1687 | } | |
92bc0e80 | 1688 | else |
07d6d2b8 AM |
1689 | { |
1690 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); | |
1691 | bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum, | |
19765f52 | 1692 | pinfo); |
07d6d2b8 | 1693 | } |
92bc0e80 | 1694 | |
46d1c23b | 1695 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
07d6d2b8 AM |
1696 | != BFD_MACH_O_RELENT_SIZE) |
1697 | return FALSE; | |
92bc0e80 TG |
1698 | } |
1699 | return TRUE; | |
1700 | } | |
1701 | ||
452216ab | 1702 | static bfd_boolean |
ab273af8 | 1703 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1704 | { |
46d1c23b TG |
1705 | struct mach_o_section_32_external raw; |
1706 | ||
1707 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1708 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1709 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1710 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1711 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1712 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1713 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1714 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1715 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1716 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1717 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1718 | ||
1719 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1720 | != BFD_MACH_O_SECTION_SIZE) |
452216ab | 1721 | return FALSE; |
116c20d2 | 1722 | |
452216ab | 1723 | return TRUE; |
116c20d2 NC |
1724 | } |
1725 | ||
452216ab | 1726 | static bfd_boolean |
ab273af8 | 1727 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1728 | { |
46d1c23b TG |
1729 | struct mach_o_section_64_external raw; |
1730 | ||
1731 | memcpy (raw.sectname, section->sectname, 16); | |
1732 | memcpy (raw.segname, section->segname, 16); | |
1733 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1734 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1735 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1736 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1737 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1738 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1739 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1740 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1741 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1742 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1743 | ||
1744 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1745 | != BFD_MACH_O_SECTION_64_SIZE) |
452216ab | 1746 | return FALSE; |
116c20d2 | 1747 | |
452216ab | 1748 | return TRUE; |
1e8a024a TG |
1749 | } |
1750 | ||
452216ab | 1751 | static bfd_boolean |
ab273af8 | 1752 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1753 | { |
46d1c23b | 1754 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1755 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1756 | bfd_mach_o_section *sec; |
1e8a024a | 1757 | |
c2f09c75 TG |
1758 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1759 | ||
f1bde64c TG |
1760 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1761 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1762 | return FALSE; |
c2f09c75 | 1763 | |
46d1c23b TG |
1764 | memcpy (raw.segname, seg->segname, 16); |
1765 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1766 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1767 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1768 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1769 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1770 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1771 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1772 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
68ffbac6 | 1773 | |
46d1c23b TG |
1774 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1775 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1776 | return FALSE; |
1e8a024a | 1777 | |
f1bde64c | 1778 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1779 | if (!bfd_mach_o_write_section_32 (abfd, sec)) |
1780 | return FALSE; | |
1e8a024a | 1781 | |
452216ab | 1782 | return TRUE; |
116c20d2 NC |
1783 | } |
1784 | ||
452216ab | 1785 | static bfd_boolean |
ab273af8 | 1786 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1787 | { |
46d1c23b | 1788 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1789 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1790 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1791 | |
1792 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1793 | ||
f1bde64c TG |
1794 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1795 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1796 | return FALSE; |
c2f09c75 | 1797 | |
46d1c23b TG |
1798 | memcpy (raw.segname, seg->segname, 16); |
1799 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1800 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1801 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1802 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1803 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1804 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1805 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1806 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1807 | ||
1808 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1809 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1810 | return FALSE; |
c2f09c75 | 1811 | |
f1bde64c | 1812 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1813 | if (!bfd_mach_o_write_section_64 (abfd, sec)) |
1814 | return FALSE; | |
c2f09c75 | 1815 | |
452216ab | 1816 | return TRUE; |
1e8a024a TG |
1817 | } |
1818 | ||
c2f09c75 | 1819 | static bfd_boolean |
c9ffd2ea | 1820 | bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym) |
116c20d2 | 1821 | { |
046b007d | 1822 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1823 | unsigned long i; |
c2f09c75 | 1824 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
c2f09c75 TG |
1825 | struct bfd_strtab_hash *strtab; |
1826 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
c9ffd2ea | 1827 | int padlen; |
c2f09c75 TG |
1828 | |
1829 | /* Write the symbols first. */ | |
1830 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) | |
1831 | return FALSE; | |
1832 | ||
c2f09c75 TG |
1833 | strtab = _bfd_stringtab_init (); |
1834 | if (strtab == NULL) | |
1835 | return FALSE; | |
116c20d2 | 1836 | |
a4551119 TG |
1837 | if (sym->nsyms > 0) |
1838 | /* Although we don't strictly need to do this, for compatibility with | |
1839 | Darwin system tools, actually output an empty string for the index | |
1840 | 0 entry. */ | |
1841 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
1842 | ||
116c20d2 NC |
1843 | for (i = 0; i < sym->nsyms; i++) |
1844 | { | |
91d6fa6a | 1845 | bfd_size_type str_index; |
92bc0e80 | 1846 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
68ffbac6 | 1847 | |
92bc0e80 | 1848 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 1849 | /* An index of 0 always means the empty string. */ |
07d6d2b8 | 1850 | str_index = 0; |
c2f09c75 | 1851 | else |
07d6d2b8 AM |
1852 | { |
1853 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); | |
7f307238 | 1854 | |
07d6d2b8 AM |
1855 | if (str_index == (bfd_size_type) -1) |
1856 | goto err; | |
1857 | } | |
46d1c23b | 1858 | |
c2f09c75 | 1859 | if (wide) |
07d6d2b8 AM |
1860 | { |
1861 | struct mach_o_nlist_64_external raw; | |
1862 | ||
1863 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
1864 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1865 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1866 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1867 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
1868 | raw.n_value); | |
1869 | ||
1870 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1871 | goto err; | |
1872 | } | |
c2f09c75 | 1873 | else |
07d6d2b8 AM |
1874 | { |
1875 | struct mach_o_nlist_external raw; | |
116c20d2 | 1876 | |
07d6d2b8 AM |
1877 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
1878 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1879 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1880 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1881 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
1882 | raw.n_value); | |
46d1c23b | 1883 | |
07d6d2b8 AM |
1884 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1885 | goto err; | |
1886 | } | |
116c20d2 | 1887 | } |
c2f09c75 | 1888 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
1889 | sym->stroff = mdata->filelen; |
1890 | mdata->filelen += sym->strsize; | |
116c20d2 | 1891 | |
c9ffd2ea | 1892 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
64d29018 | 1893 | goto err; |
c9ffd2ea | 1894 | |
535b785f | 1895 | if (!_bfd_stringtab_emit (abfd, strtab)) |
c2f09c75 | 1896 | goto err; |
116c20d2 | 1897 | |
c9ffd2ea TG |
1898 | /* Pad string table. */ |
1899 | padlen = bfd_mach_o_pad4 (abfd, sym->strsize); | |
1900 | if (padlen < 0) | |
1901 | return FALSE; | |
1902 | mdata->filelen += padlen; | |
1903 | sym->strsize += padlen; | |
116c20d2 | 1904 | |
c2f09c75 | 1905 | return TRUE; |
116c20d2 | 1906 | |
c2f09c75 TG |
1907 | err: |
1908 | _bfd_stringtab_free (strtab); | |
64d29018 | 1909 | sym->strsize = 0; |
c2f09c75 | 1910 | return FALSE; |
116c20d2 NC |
1911 | } |
1912 | ||
c9ffd2ea TG |
1913 | static bfd_boolean |
1914 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) | |
1915 | { | |
1916 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
1917 | struct mach_o_symtab_command_external raw; | |
1918 | ||
1919 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
1920 | ||
1921 | /* The command. */ | |
1922 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); | |
1923 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
1924 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
1925 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
1926 | ||
1927 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1928 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1929 | return FALSE; | |
1930 | ||
1931 | return TRUE; | |
1932 | } | |
1933 | ||
1934 | /* Count the number of indirect symbols in the image. | |
1935 | Requires that the sections are in their final order. */ | |
1936 | ||
1937 | static unsigned int | |
1938 | bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
1939 | { | |
1940 | unsigned int i; | |
1941 | unsigned int nisyms = 0; | |
1942 | ||
1943 | for (i = 0; i < mdata->nsects; ++i) | |
1944 | { | |
1945 | bfd_mach_o_section *sec = mdata->sections[i]; | |
1946 | ||
1947 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
1948 | { | |
1949 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
1950 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
1951 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
1952 | nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
1953 | break; | |
1954 | default: | |
1955 | break; | |
1956 | } | |
1957 | } | |
1958 | return nisyms; | |
1959 | } | |
1960 | ||
1961 | /* Create the dysymtab. */ | |
1962 | ||
1963 | static bfd_boolean | |
1964 | bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd) | |
1965 | { | |
1966 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1967 | ||
1968 | /* TODO: | |
1969 | We are not going to try and fill these in yet and, moreover, we are | |
1970 | going to bail if they are already set. */ | |
1971 | if (cmd->nmodtab != 0 | |
1972 | || cmd->ntoc != 0 | |
1973 | || cmd->nextrefsyms != 0) | |
1974 | { | |
4eca0228 AM |
1975 | _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet" |
1976 | " implemented for dysymtab commands.")); | |
c9ffd2ea TG |
1977 | return FALSE; |
1978 | } | |
1979 | ||
1980 | cmd->ilocalsym = 0; | |
1981 | ||
1982 | if (bfd_get_symcount (abfd) > 0) | |
1983 | { | |
1984 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1985 | unsigned long i; | |
1986 | ||
1987 | /* Count the number of each kind of symbol. */ | |
1988 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
1989 | { | |
1990 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1991 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
1992 | break; | |
1993 | } | |
1994 | cmd->nlocalsym = i; | |
1995 | cmd->iextdefsym = i; | |
1996 | for (; i < bfd_get_symcount (abfd); ++i) | |
1997 | { | |
1998 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1999 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
2000 | break; | |
2001 | } | |
2002 | cmd->nextdefsym = i - cmd->nlocalsym; | |
2003 | cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym; | |
2004 | cmd->nundefsym = bfd_get_symcount (abfd) | |
2005 | - cmd->nlocalsym | |
2006 | - cmd->nextdefsym; | |
2007 | } | |
2008 | else | |
2009 | { | |
2010 | cmd->nlocalsym = 0; | |
2011 | cmd->iextdefsym = 0; | |
2012 | cmd->nextdefsym = 0; | |
2013 | cmd->iundefsym = 0; | |
2014 | cmd->nundefsym = 0; | |
2015 | } | |
2016 | ||
2017 | cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata); | |
2018 | if (cmd->nindirectsyms > 0) | |
2019 | { | |
2020 | unsigned i; | |
2021 | unsigned n; | |
2022 | ||
2023 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2024 | cmd->indirectsymoff = mdata->filelen; | |
2025 | mdata->filelen += cmd->nindirectsyms * 4; | |
2026 | ||
64d29018 NC |
2027 | if (cmd->nindirectsyms * 4 < cmd->nindirectsyms) |
2028 | return FALSE; | |
c9ffd2ea TG |
2029 | cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4); |
2030 | if (cmd->indirect_syms == NULL) | |
07d6d2b8 | 2031 | return FALSE; |
c9ffd2ea TG |
2032 | |
2033 | n = 0; | |
2034 | for (i = 0; i < mdata->nsects; ++i) | |
2035 | { | |
2036 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2037 | ||
2038 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2039 | { | |
2040 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2041 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2042 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2043 | { | |
2044 | unsigned j, num; | |
2045 | bfd_mach_o_asymbol **isyms = sec->indirect_syms; | |
2046 | ||
2047 | num = bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2048 | if (isyms == NULL || num == 0) | |
2049 | break; | |
2050 | /* Record the starting index in the reserved1 field. */ | |
2051 | sec->reserved1 = n; | |
2052 | for (j = 0; j < num; j++, n++) | |
2053 | { | |
2054 | if (isyms[j] == NULL) | |
07d6d2b8 | 2055 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL; |
c9ffd2ea TG |
2056 | else if (isyms[j]->symbol.section == bfd_abs_section_ptr |
2057 | && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT)) | |
07d6d2b8 | 2058 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL |
c9ffd2ea TG |
2059 | | BFD_MACH_O_INDIRECT_SYM_ABS; |
2060 | else | |
07d6d2b8 | 2061 | cmd->indirect_syms[n] = isyms[j]->symbol.udata.i; |
c9ffd2ea TG |
2062 | } |
2063 | } | |
2064 | break; | |
2065 | default: | |
2066 | break; | |
2067 | } | |
2068 | } | |
2069 | } | |
2070 | ||
2071 | return TRUE; | |
2072 | } | |
2073 | ||
7f307238 IS |
2074 | /* Write a dysymtab command. |
2075 | TODO: Possibly coalesce writes of smaller objects. */ | |
2076 | ||
2077 | static bfd_boolean | |
2078 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2079 | { | |
2080 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
2081 | ||
2082 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
2083 | ||
2084 | if (cmd->nmodtab != 0) | |
2085 | { | |
2086 | unsigned int i; | |
2087 | ||
2088 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
2089 | return FALSE; | |
2090 | ||
2091 | for (i = 0; i < cmd->nmodtab; i++) | |
2092 | { | |
2093 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
2094 | unsigned int iinit; | |
2095 | unsigned int ninit; | |
2096 | ||
2097 | iinit = module->iinit & 0xffff; | |
2098 | iinit |= ((module->iterm & 0xffff) << 16); | |
2099 | ||
2100 | ninit = module->ninit & 0xffff; | |
2101 | ninit |= ((module->nterm & 0xffff) << 16); | |
2102 | ||
2103 | if (bfd_mach_o_wide_p (abfd)) | |
2104 | { | |
2105 | struct mach_o_dylib_module_64_external w; | |
2106 | ||
2107 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
2108 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
2109 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
2110 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
2111 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
2112 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
2113 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
2114 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
2115 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
2116 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
2117 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
2118 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
2119 | &w.objc_module_info_addr); | |
2120 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2121 | &w.objc_module_info_size); | |
2122 | ||
2123 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
2124 | return FALSE; | |
2125 | } | |
2126 | else | |
2127 | { | |
2128 | struct mach_o_dylib_module_external n; | |
2129 | ||
2130 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
2131 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
2132 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
2133 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
2134 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
2135 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
2136 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
2137 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
2138 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
2139 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
2140 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
2141 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
2142 | &n.objc_module_info_addr); | |
2143 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2144 | &n.objc_module_info_size); | |
2145 | ||
2146 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
2147 | return FALSE; | |
2148 | } | |
2149 | } | |
2150 | } | |
2151 | ||
2152 | if (cmd->ntoc != 0) | |
2153 | { | |
2154 | unsigned int i; | |
2155 | ||
2156 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
2157 | return FALSE; | |
2158 | ||
2159 | for (i = 0; i < cmd->ntoc; i++) | |
2160 | { | |
2161 | struct mach_o_dylib_table_of_contents_external raw; | |
2162 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
2163 | ||
2164 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
2165 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
2166 | ||
2167 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2168 | return FALSE; | |
2169 | } | |
2170 | } | |
68ffbac6 | 2171 | |
7f307238 IS |
2172 | if (cmd->nindirectsyms > 0) |
2173 | { | |
2174 | unsigned int i; | |
2175 | ||
2176 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
2177 | return FALSE; | |
2178 | ||
2179 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
2180 | { | |
2181 | unsigned char raw[4]; | |
2182 | ||
2183 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
2184 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2185 | return FALSE; | |
68ffbac6 | 2186 | } |
7f307238 IS |
2187 | } |
2188 | ||
2189 | if (cmd->nextrefsyms != 0) | |
2190 | { | |
2191 | unsigned int i; | |
2192 | ||
2193 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
2194 | return FALSE; | |
2195 | ||
2196 | for (i = 0; i < cmd->nextrefsyms; i++) | |
2197 | { | |
2198 | unsigned long v; | |
2199 | unsigned char raw[4]; | |
2200 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
2201 | ||
2202 | /* Fields isym and flags are written as bit-fields, thus we need | |
2203 | a specific processing for endianness. */ | |
2204 | ||
2205 | if (bfd_big_endian (abfd)) | |
2206 | { | |
2207 | v = ((ref->isym & 0xffffff) << 8); | |
2208 | v |= ref->flags & 0xff; | |
2209 | } | |
2210 | else | |
2211 | { | |
2212 | v = ref->isym & 0xffffff; | |
2213 | v |= ((ref->flags & 0xff) << 24); | |
2214 | } | |
2215 | ||
2216 | bfd_h_put_32 (abfd, v, raw); | |
2217 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2218 | return FALSE; | |
2219 | } | |
2220 | } | |
2221 | ||
2222 | /* The command. */ | |
2223 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
2224 | return FALSE; | |
2225 | else | |
2226 | { | |
2227 | struct mach_o_dysymtab_command_external raw; | |
2228 | ||
2229 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
2230 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
2231 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
2232 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
2233 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
2234 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
2235 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
2236 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
2237 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
2238 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
2239 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
2240 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
2241 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
2242 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
2243 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
2244 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
2245 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
2246 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
2247 | ||
2248 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2249 | return FALSE; | |
2250 | } | |
2251 | ||
2252 | return TRUE; | |
2253 | } | |
2254 | ||
2255 | static unsigned | |
b22161d6 | 2256 | bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s) |
7f307238 | 2257 | { |
b22161d6 | 2258 | unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE; |
68588f95 IS |
2259 | |
2260 | /* Just leave debug symbols where they are (pretend they are local, and | |
2261 | then they will just be sorted on position). */ | |
b22161d6 | 2262 | if (s->n_type & BFD_MACH_O_N_STAB) |
68588f95 IS |
2263 | return 0; |
2264 | ||
7f307238 | 2265 | /* Local (we should never see an undefined local AFAICT). */ |
b22161d6 | 2266 | if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
2267 | return 0; |
2268 | ||
2269 | /* Common symbols look like undefined externs. */ | |
68588f95 | 2270 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
2271 | return 2; |
2272 | ||
b22161d6 | 2273 | /* A defined non-local, non-debug symbol. */ |
7f307238 IS |
2274 | return 1; |
2275 | } | |
2276 | ||
2277 | static int | |
2278 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
2279 | { | |
2280 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
2281 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
2282 | unsigned int soa, sob; | |
2283 | ||
b22161d6 IS |
2284 | soa = bfd_mach_o_primary_symbol_sort_key (sa); |
2285 | sob = bfd_mach_o_primary_symbol_sort_key (sb); | |
7f307238 IS |
2286 | if (soa < sob) |
2287 | return -1; | |
2288 | ||
2289 | if (soa > sob) | |
2290 | return 1; | |
2291 | ||
68588f95 | 2292 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
2293 | if (soa == 0) |
2294 | { | |
2295 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
07d6d2b8 | 2296 | return -1; |
7f307238 | 2297 | if (sa->symbol.udata.i > sb->symbol.udata.i) |
07d6d2b8 | 2298 | return 1; |
b22161d6 IS |
2299 | |
2300 | /* This is probably an error. */ | |
7f307238 IS |
2301 | return 0; |
2302 | } | |
2303 | ||
b22161d6 IS |
2304 | /* The second sort key is name. */ |
2305 | return strcmp (sa->symbol.name, sb->symbol.name); | |
7f307238 IS |
2306 | } |
2307 | ||
2308 | /* Process the symbols. | |
2309 | ||
2310 | This should be OK for single-module files - but it is not likely to work | |
2311 | for multi-module shared libraries. | |
2312 | ||
2313 | (a) If the application has not filled in the relevant mach-o fields, make | |
2314 | an estimate. | |
2315 | ||
2316 | (b) Order them, like this: | |
2317 | ( i) local. | |
2318 | (unsorted) | |
2319 | ( ii) external defined | |
2320 | (by name) | |
b22161d6 | 2321 | (iii) external undefined/common |
7f307238 IS |
2322 | (by name) |
2323 | ( iv) common | |
2324 | (by name) | |
b22161d6 | 2325 | */ |
92bc0e80 TG |
2326 | |
2327 | static bfd_boolean | |
b22161d6 | 2328 | bfd_mach_o_mangle_symbols (bfd *abfd) |
92bc0e80 TG |
2329 | { |
2330 | unsigned long i; | |
2331 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2332 | ||
7f307238 IS |
2333 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
2334 | return TRUE; | |
2335 | ||
92bc0e80 TG |
2336 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
2337 | { | |
2338 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2339 | ||
b22161d6 IS |
2340 | /* We use this value, which is out-of-range as a symbol index, to signal |
2341 | that the mach-o-specific data are not filled in and need to be created | |
2342 | from the bfd values. It is much preferable for the application to do | |
2343 | this, since more meaningful diagnostics can be made that way. */ | |
2344 | ||
2345 | if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET) | |
07d6d2b8 AM |
2346 | { |
2347 | /* No symbol information has been set - therefore determine | |
2348 | it from the bfd symbol flags/info. */ | |
2349 | if (s->symbol.section == bfd_abs_section_ptr) | |
2350 | s->n_type = BFD_MACH_O_N_ABS; | |
2351 | else if (s->symbol.section == bfd_und_section_ptr) | |
2352 | { | |
2353 | s->n_type = BFD_MACH_O_N_UNDF; | |
2354 | if (s->symbol.flags & BSF_WEAK) | |
2355 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
2356 | /* mach-o automatically makes undefined symbols extern. */ | |
7f307238 | 2357 | s->n_type |= BFD_MACH_O_N_EXT; |
b22161d6 | 2358 | s->symbol.flags |= BSF_GLOBAL; |
07d6d2b8 AM |
2359 | } |
2360 | else if (s->symbol.section == bfd_com_section_ptr) | |
b22161d6 | 2361 | { |
07d6d2b8 AM |
2362 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; |
2363 | s->symbol.flags |= BSF_GLOBAL; | |
2364 | } | |
2365 | else | |
2366 | s->n_type = BFD_MACH_O_N_SECT; | |
68ffbac6 | 2367 | |
07d6d2b8 AM |
2368 | if (s->symbol.flags & BSF_GLOBAL) |
2369 | s->n_type |= BFD_MACH_O_N_EXT; | |
2370 | } | |
92bc0e80 | 2371 | |
7f307238 | 2372 | /* Put the section index in, where required. */ |
68588f95 | 2373 | if ((s->symbol.section != bfd_abs_section_ptr |
07d6d2b8 AM |
2374 | && s->symbol.section != bfd_und_section_ptr |
2375 | && s->symbol.section != bfd_com_section_ptr) | |
2376 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 | |
2377 | && s->symbol.name == NULL)) | |
707e555b | 2378 | s->n_sect = s->symbol.section->output_section->target_index; |
92bc0e80 | 2379 | |
b22161d6 IS |
2380 | /* Number to preserve order for local and debug syms. */ |
2381 | s->symbol.udata.i = i; | |
7f307238 IS |
2382 | } |
2383 | ||
b22161d6 IS |
2384 | /* Sort the symbols. */ |
2385 | qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd), | |
2386 | sizeof (asymbol *), bfd_mach_o_cf_symbols); | |
7f307238 | 2387 | |
b22161d6 IS |
2388 | for (i = 0; i < bfd_get_symcount (abfd); ++i) |
2389 | { | |
2390 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2391 | s->symbol.udata.i = i; /* renumber. */ | |
7f307238 IS |
2392 | } |
2393 | ||
2394 | return TRUE; | |
2395 | } | |
2396 | ||
2397 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
2398 | Fill in the section number and other mach-o-specific data. */ | |
2399 | ||
2400 | static bfd_boolean | |
2401 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2402 | { | |
2403 | asection *sec; | |
2404 | unsigned target_index; | |
2405 | unsigned nsect; | |
2406 | ||
2407 | nsect = bfd_count_sections (abfd); | |
68ffbac6 | 2408 | |
7f307238 IS |
2409 | /* Don't do it if it's already set - assume the application knows what it's |
2410 | doing. */ | |
2411 | if (mdata->nsects == nsect | |
2412 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
2413 | return TRUE; | |
2414 | ||
a1165289 NC |
2415 | /* We need to check that this can be done... */ |
2416 | if (nsect > 255) | |
2417 | { | |
4eca0228 AM |
2418 | _bfd_error_handler (_("mach-o: there are too many sections (%u)" |
2419 | " maximum is 255,\n"), nsect); | |
a1165289 NC |
2420 | return FALSE; |
2421 | } | |
2422 | ||
7f307238 | 2423 | mdata->nsects = nsect; |
64d29018 NC |
2424 | mdata->sections = bfd_alloc2 (abfd, |
2425 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
7f307238 IS |
2426 | if (mdata->sections == NULL) |
2427 | return FALSE; | |
2428 | ||
7f307238 | 2429 | /* Create Mach-O sections. |
68ffbac6 | 2430 | Section type, attribute and align should have been set when the |
7f307238 IS |
2431 | section was created - either read in or specified. */ |
2432 | target_index = 0; | |
2433 | for (sec = abfd->sections; sec; sec = sec->next) | |
2434 | { | |
2435 | unsigned bfd_align = bfd_get_section_alignment (abfd, sec); | |
2436 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); | |
2437 | ||
2438 | mdata->sections[target_index] = msect; | |
2439 | ||
2440 | msect->addr = bfd_get_section_vma (abfd, sec); | |
2441 | msect->size = bfd_get_section_size (sec); | |
2442 | ||
68ffbac6 | 2443 | /* Use the largest alignment set, in case it was bumped after the |
7f307238 IS |
2444 | section was created. */ |
2445 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
2446 | ||
2447 | msect->offset = 0; | |
2448 | sec->target_index = ++target_index; | |
92bc0e80 | 2449 | } |
7f307238 | 2450 | |
92bc0e80 TG |
2451 | return TRUE; |
2452 | } | |
2453 | ||
154a1ee5 | 2454 | bfd_boolean |
116c20d2 | 2455 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b | 2456 | { |
046b007d | 2457 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
2458 | bfd_mach_o_load_command *cmd; |
2459 | bfd_mach_o_symtab_command *symtab = NULL; | |
2460 | bfd_mach_o_dysymtab_command *dysymtab = NULL; | |
2461 | bfd_mach_o_segment_command *linkedit = NULL; | |
3af9a47b | 2462 | |
7f307238 | 2463 | /* Make the commands, if not already present. */ |
c9ffd2ea TG |
2464 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
2465 | return FALSE; | |
2466 | abfd->output_has_begun = TRUE; | |
92bc0e80 | 2467 | |
c9ffd2ea | 2468 | /* Write the header. */ |
154a1ee5 | 2469 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 2470 | return FALSE; |
3af9a47b | 2471 | |
c9ffd2ea TG |
2472 | /* First pass: allocate the linkedit segment. */ |
2473 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
2474 | switch (cmd->type) | |
2475 | { | |
2476 | case BFD_MACH_O_LC_SEGMENT_64: | |
2477 | case BFD_MACH_O_LC_SEGMENT: | |
2478 | if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0) | |
2479 | linkedit = &cmd->command.segment; | |
2480 | break; | |
2481 | case BFD_MACH_O_LC_SYMTAB: | |
2482 | symtab = &cmd->command.symtab; | |
2483 | break; | |
2484 | case BFD_MACH_O_LC_DYSYMTAB: | |
2485 | dysymtab = &cmd->command.dysymtab; | |
2486 | break; | |
2487 | case BFD_MACH_O_LC_DYLD_INFO: | |
2488 | { | |
2489 | bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info; | |
2490 | ||
2491 | if (di->rebase_size != 0) | |
2492 | { | |
2493 | di->rebase_off = mdata->filelen; | |
2494 | mdata->filelen += di->rebase_size; | |
2495 | } | |
2496 | if (di->bind_size != 0) | |
2497 | { | |
2498 | di->bind_off = mdata->filelen; | |
2499 | mdata->filelen += di->bind_size; | |
2500 | } | |
2501 | if (di->weak_bind_size != 0) | |
2502 | { | |
2503 | di->weak_bind_off = mdata->filelen; | |
2504 | mdata->filelen += di->weak_bind_size; | |
2505 | } | |
2506 | if (di->lazy_bind_size != 0) | |
2507 | { | |
2508 | di->lazy_bind_off = mdata->filelen; | |
2509 | mdata->filelen += di->lazy_bind_size; | |
2510 | } | |
2511 | if (di->export_size != 0) | |
2512 | { | |
2513 | di->export_off = mdata->filelen; | |
2514 | mdata->filelen += di->export_size; | |
2515 | } | |
2516 | } | |
2517 | break; | |
2518 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2519 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2520 | case BFD_MACH_O_LC_MAIN: | |
2521 | /* Nothing to do. */ | |
2522 | break; | |
2523 | default: | |
4eca0228 | 2524 | _bfd_error_handler |
d42c267e AM |
2525 | (_("unable to allocate data for load command %#x"), |
2526 | cmd->type); | |
c9ffd2ea TG |
2527 | break; |
2528 | } | |
2529 | ||
2530 | /* Specially handle symtab and dysymtab. */ | |
2531 | ||
2532 | /* Pre-allocate the symbol table (but not the string table). The reason | |
2533 | is that the dysymtab is after the symbol table but before the string | |
2534 | table (required by the native strip tool). */ | |
2535 | if (symtab != NULL) | |
2536 | { | |
2537 | unsigned int symlen; | |
2538 | unsigned int wide = bfd_mach_o_wide_p (abfd); | |
2539 | ||
2540 | symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
2541 | ||
2542 | /* Align for symbols. */ | |
2543 | mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2); | |
2544 | symtab->symoff = mdata->filelen; | |
2545 | ||
2546 | symtab->nsyms = bfd_get_symcount (abfd); | |
2547 | mdata->filelen += symtab->nsyms * symlen; | |
2548 | } | |
2549 | ||
2550 | /* Build the dysymtab. */ | |
2551 | if (dysymtab != NULL) | |
2552 | if (!bfd_mach_o_build_dysymtab (abfd, dysymtab)) | |
2553 | return FALSE; | |
2554 | ||
2555 | /* Write symtab and strtab. */ | |
2556 | if (symtab != NULL) | |
2557 | if (!bfd_mach_o_write_symtab_content (abfd, symtab)) | |
2558 | return FALSE; | |
2559 | ||
2560 | /* Adjust linkedit size. */ | |
2561 | if (linkedit != NULL) | |
2562 | { | |
2563 | /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */ | |
2564 | ||
2565 | linkedit->vmsize = mdata->filelen - linkedit->fileoff; | |
2566 | /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */ | |
2567 | linkedit->filesize = mdata->filelen - linkedit->fileoff; | |
2568 | ||
2569 | linkedit->initprot = BFD_MACH_O_PROT_READ; | |
2570 | linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2571 | | BFD_MACH_O_PROT_EXECUTE; | |
2572 | } | |
2573 | ||
2574 | /* Second pass: write commands. */ | |
2575 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
3af9a47b | 2576 | { |
46d1c23b | 2577 | struct mach_o_load_command_external raw; |
3af9a47b NC |
2578 | unsigned long typeflag; |
2579 | ||
c9ffd2ea | 2580 | typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 2581 | |
46d1c23b | 2582 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
c9ffd2ea | 2583 | bfd_h_put_32 (abfd, cmd->len, raw.cmdsize); |
3af9a47b | 2584 | |
c9ffd2ea | 2585 | if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0 |
07d6d2b8 | 2586 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 2587 | return FALSE; |
3af9a47b | 2588 | |
c9ffd2ea | 2589 | switch (cmd->type) |
3af9a47b NC |
2590 | { |
2591 | case BFD_MACH_O_LC_SEGMENT: | |
c9ffd2ea | 2592 | if (!bfd_mach_o_write_segment_32 (abfd, cmd)) |
1e8a024a TG |
2593 | return FALSE; |
2594 | break; | |
2595 | case BFD_MACH_O_LC_SEGMENT_64: | |
c9ffd2ea | 2596 | if (!bfd_mach_o_write_segment_64 (abfd, cmd)) |
b34976b6 | 2597 | return FALSE; |
3af9a47b NC |
2598 | break; |
2599 | case BFD_MACH_O_LC_SYMTAB: | |
c9ffd2ea | 2600 | if (!bfd_mach_o_write_symtab (abfd, cmd)) |
b34976b6 | 2601 | return FALSE; |
3af9a47b | 2602 | break; |
7f307238 | 2603 | case BFD_MACH_O_LC_DYSYMTAB: |
c9ffd2ea | 2604 | if (!bfd_mach_o_write_dysymtab (abfd, cmd)) |
7f307238 IS |
2605 | return FALSE; |
2606 | break; | |
3af9a47b NC |
2607 | case BFD_MACH_O_LC_THREAD: |
2608 | case BFD_MACH_O_LC_UNIXTHREAD: | |
c9ffd2ea | 2609 | if (!bfd_mach_o_write_thread (abfd, cmd)) |
b34976b6 | 2610 | return FALSE; |
3af9a47b | 2611 | break; |
3af9a47b | 2612 | case BFD_MACH_O_LC_LOAD_DYLIB: |
c9ffd2ea TG |
2613 | if (!bfd_mach_o_write_dylib (abfd, cmd)) |
2614 | return FALSE; | |
2615 | break; | |
3af9a47b | 2616 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
c9ffd2ea TG |
2617 | if (!bfd_mach_o_write_dylinker (abfd, cmd)) |
2618 | return FALSE; | |
2619 | break; | |
2620 | case BFD_MACH_O_LC_MAIN: | |
2621 | if (!bfd_mach_o_write_main (abfd, cmd)) | |
2622 | return FALSE; | |
2623 | break; | |
2624 | case BFD_MACH_O_LC_DYLD_INFO: | |
2625 | if (!bfd_mach_o_write_dyld_info (abfd, cmd)) | |
2626 | return FALSE; | |
3af9a47b NC |
2627 | break; |
2628 | default: | |
4eca0228 | 2629 | _bfd_error_handler |
d42c267e AM |
2630 | (_("unable to write unknown load command %#x"), |
2631 | cmd->type); | |
b34976b6 | 2632 | return FALSE; |
3af9a47b NC |
2633 | } |
2634 | } | |
2635 | ||
b34976b6 | 2636 | return TRUE; |
3af9a47b NC |
2637 | } |
2638 | ||
f1bde64c TG |
2639 | static void |
2640 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
07d6d2b8 | 2641 | bfd_mach_o_section *s) |
f1bde64c | 2642 | { |
f1bde64c TG |
2643 | if (seg->sect_head == NULL) |
2644 | seg->sect_head = s; | |
2645 | else | |
2646 | seg->sect_tail->next = s; | |
2647 | seg->sect_tail = s; | |
2648 | } | |
2649 | ||
2650 | /* Create section Mach-O flags from BFD flags. */ | |
2651 | ||
2652 | static void | |
3cc27770 TG |
2653 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, |
2654 | asection *sec) | |
f1bde64c TG |
2655 | { |
2656 | flagword bfd_flags; | |
2657 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2658 | ||
2659 | /* Create default flags. */ | |
2660 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
2661 | if ((bfd_flags & SEC_CODE) == SEC_CODE) | |
2662 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2663 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2664 | | BFD_MACH_O_S_REGULAR; | |
2665 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2666 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2667 | else if (bfd_flags & SEC_DEBUGGING) | |
2668 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2669 | else | |
2670 | s->flags = BFD_MACH_O_S_REGULAR; | |
2671 | } | |
2672 | ||
7f307238 | 2673 | static bfd_boolean |
c9ffd2ea | 2674 | bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) |
7f307238 | 2675 | { |
c9ffd2ea TG |
2676 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2677 | unsigned int i, j; | |
7f307238 | 2678 | |
7f307238 | 2679 | seg->vmaddr = 0; |
7f307238 | 2680 | seg->fileoff = mdata->filelen; |
c9ffd2ea TG |
2681 | seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE |
2682 | | BFD_MACH_O_PROT_EXECUTE; | |
2683 | seg->maxprot = seg->initprot; | |
7f307238 | 2684 | |
68ffbac6 | 2685 | /* Append sections to the segment. |
09903f4b IS |
2686 | |
2687 | This is a little tedious, we have to honor the need to account zerofill | |
2688 | sections after all the rest. This forces us to do the calculation of | |
68ffbac6 | 2689 | total vmsize in three passes so that any alignment increments are |
09903f4b | 2690 | properly accounted. */ |
7f307238 IS |
2691 | for (i = 0; i < mdata->nsects; ++i) |
2692 | { | |
2693 | bfd_mach_o_section *s = mdata->sections[i]; | |
2694 | asection *sec = s->bfdsection; | |
2695 | ||
09903f4b IS |
2696 | /* Although we account for zerofill section sizes in vm order, they are |
2697 | placed in the file in source sequence. */ | |
c9ffd2ea | 2698 | bfd_mach_o_append_section_to_segment (seg, s); |
e5081f2f | 2699 | s->offset = 0; |
68ffbac6 | 2700 | |
c9ffd2ea TG |
2701 | /* Zerofill sections have zero file size & offset, the only content |
2702 | written to the file is the symbols. */ | |
e5081f2f | 2703 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL |
07d6d2b8 | 2704 | || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2705 | == BFD_MACH_O_S_GB_ZEROFILL)) |
07d6d2b8 | 2706 | continue; |
e5081f2f | 2707 | |
c9ffd2ea TG |
2708 | /* The Darwin system tools (in MH_OBJECT files, at least) always account |
2709 | sections, even those with zero size. */ | |
e5081f2f | 2710 | if (s->size > 0) |
c9ffd2ea | 2711 | { |
09903f4b IS |
2712 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); |
2713 | seg->vmsize += s->size; | |
2714 | ||
c9ffd2ea TG |
2715 | /* MH_OBJECT files have unaligned content. */ |
2716 | if (1) | |
2717 | { | |
2718 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
07d6d2b8 AM |
2719 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2720 | } | |
09903f4b IS |
2721 | seg->filesize += s->size; |
2722 | ||
c9ffd2ea TG |
2723 | /* The system tools write even zero-sized sections with an offset |
2724 | field set to the current file position. */ | |
07d6d2b8 | 2725 | s->offset = mdata->filelen; |
c9ffd2ea | 2726 | } |
7f307238 IS |
2727 | |
2728 | sec->filepos = s->offset; | |
7f307238 IS |
2729 | mdata->filelen += s->size; |
2730 | } | |
2731 | ||
3cc27770 | 2732 | /* Now pass through again, for zerofill, only now we just update the |
c9ffd2ea TG |
2733 | vmsize, and then for zerofill_GB. */ |
2734 | for (j = 0; j < 2; j++) | |
09903f4b | 2735 | { |
c9ffd2ea | 2736 | unsigned int stype; |
68ffbac6 | 2737 | |
c9ffd2ea TG |
2738 | if (j == 0) |
2739 | stype = BFD_MACH_O_S_ZEROFILL; | |
2740 | else | |
2741 | stype = BFD_MACH_O_S_GB_ZEROFILL; | |
09903f4b | 2742 | |
c9ffd2ea TG |
2743 | for (i = 0; i < mdata->nsects; ++i) |
2744 | { | |
2745 | bfd_mach_o_section *s = mdata->sections[i]; | |
2746 | ||
2747 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype) | |
2748 | continue; | |
2749 | ||
2750 | if (s->size > 0) | |
2751 | { | |
2752 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2753 | seg->vmsize += s->size; | |
2754 | } | |
09903f4b IS |
2755 | } |
2756 | } | |
bb76d940 | 2757 | |
09903f4b | 2758 | /* Allocate space for the relocations. */ |
707e555b | 2759 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); |
bb76d940 IS |
2760 | |
2761 | for (i = 0; i < mdata->nsects; ++i) | |
2762 | { | |
2763 | bfd_mach_o_section *ms = mdata->sections[i]; | |
2764 | asection *sec = ms->bfdsection; | |
68ffbac6 | 2765 | |
c9ffd2ea TG |
2766 | ms->nreloc = sec->reloc_count; |
2767 | if (ms->nreloc == 0) | |
07d6d2b8 | 2768 | { |
c9ffd2ea | 2769 | /* Clear nreloc and reloff if there is no relocs. */ |
bb76d940 IS |
2770 | ms->reloff = 0; |
2771 | continue; | |
07d6d2b8 | 2772 | } |
bb76d940 IS |
2773 | sec->rel_filepos = mdata->filelen; |
2774 | ms->reloff = sec->rel_filepos; | |
2775 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
2776 | } | |
7f307238 IS |
2777 | |
2778 | return TRUE; | |
2779 | } | |
2780 | ||
c9ffd2ea TG |
2781 | static bfd_boolean |
2782 | bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) | |
50d10658 | 2783 | { |
c9ffd2ea | 2784 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
50d10658 | 2785 | unsigned int i; |
c9ffd2ea TG |
2786 | bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; |
2787 | bfd_vma vma; | |
2788 | bfd_mach_o_section *s; | |
2789 | ||
2790 | seg->vmsize = 0; | |
50d10658 | 2791 | |
c9ffd2ea TG |
2792 | seg->fileoff = mdata->filelen; |
2793 | seg->maxprot = 0; | |
2794 | seg->initprot = 0; | |
2795 | seg->flags = 0; | |
2796 | ||
2797 | /* Append sections to the segment. We assume they are properly ordered | |
2798 | by vma (but we check that). */ | |
2799 | vma = 0; | |
50d10658 IS |
2800 | for (i = 0; i < mdata->nsects; ++i) |
2801 | { | |
c9ffd2ea | 2802 | s = mdata->sections[i]; |
50d10658 | 2803 | |
c9ffd2ea TG |
2804 | /* Consider only sections for this segment. */ |
2805 | if (strcmp (seg->segname, s->segname) != 0) | |
2806 | continue; | |
50d10658 | 2807 | |
c9ffd2ea | 2808 | bfd_mach_o_append_section_to_segment (seg, s); |
7f307238 | 2809 | |
86eafac0 NC |
2810 | if (s->addr < vma) |
2811 | { | |
4eca0228 | 2812 | _bfd_error_handler |
695344c0 | 2813 | /* xgettext:c-format */ |
2dcf00ce AM |
2814 | (_("section address (%#" PRIx64 ") " |
2815 | "below start of segment (%#" PRIx64 ")"), | |
2816 | (uint64_t) s->addr, (uint64_t) vma); | |
86eafac0 NC |
2817 | return FALSE; |
2818 | } | |
2819 | ||
c9ffd2ea | 2820 | vma = s->addr + s->size; |
7f307238 IS |
2821 | } |
2822 | ||
c9ffd2ea TG |
2823 | /* Set segment file offset: make it page aligned. */ |
2824 | vma = seg->sect_head->addr; | |
2825 | seg->vmaddr = vma & ~pagemask; | |
2826 | if ((mdata->filelen & pagemask) > (vma & pagemask)) | |
2827 | mdata->filelen += pagemask + 1; | |
2828 | seg->fileoff = mdata->filelen & ~pagemask; | |
2829 | mdata->filelen = seg->fileoff + (vma & pagemask); | |
7f307238 | 2830 | |
c9ffd2ea TG |
2831 | /* Set section file offset. */ |
2832 | for (s = seg->sect_head; s != NULL; s = s->next) | |
7f307238 | 2833 | { |
c9ffd2ea TG |
2834 | asection *sec = s->bfdsection; |
2835 | flagword flags = bfd_get_section_flags (abfd, sec); | |
b22161d6 | 2836 | |
c9ffd2ea TG |
2837 | /* Adjust segment size. */ |
2838 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2839 | seg->vmsize += s->size; | |
2840 | ||
2841 | /* File offset and length. */ | |
2842 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
2843 | ||
2844 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL | |
07d6d2b8 | 2845 | && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2846 | != BFD_MACH_O_S_GB_ZEROFILL)) |
b22161d6 | 2847 | { |
c9ffd2ea TG |
2848 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2849 | ||
2850 | s->offset = mdata->filelen; | |
2851 | s->bfdsection->filepos = s->offset; | |
2852 | ||
2853 | seg->filesize += s->size; | |
2854 | mdata->filelen += s->size; | |
b22161d6 | 2855 | } |
c9ffd2ea | 2856 | else |
b22161d6 | 2857 | { |
c9ffd2ea TG |
2858 | s->offset = 0; |
2859 | s->bfdsection->filepos = 0; | |
2860 | } | |
2861 | ||
2862 | /* Set protection. */ | |
2863 | if (flags & SEC_LOAD) | |
2864 | { | |
2865 | if (flags & SEC_CODE) | |
2866 | seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE; | |
2867 | if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA) | |
2868 | seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ; | |
b22161d6 | 2869 | } |
c9ffd2ea TG |
2870 | |
2871 | /* Relocs shouldn't appear in non-object files. */ | |
2872 | if (s->bfdsection->reloc_count != 0) | |
2873 | return FALSE; | |
b22161d6 | 2874 | } |
c9ffd2ea TG |
2875 | |
2876 | /* Set maxprot. */ | |
2877 | if (seg->initprot != 0) | |
2878 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2879 | | BFD_MACH_O_PROT_EXECUTE; | |
b22161d6 | 2880 | else |
c9ffd2ea | 2881 | seg->maxprot = 0; |
b22161d6 | 2882 | |
c9ffd2ea TG |
2883 | /* Round segment size (and file size). */ |
2884 | seg->vmsize = (seg->vmsize + pagemask) & ~pagemask; | |
2885 | seg->filesize = (seg->filesize + pagemask) & ~pagemask; | |
2886 | mdata->filelen = (mdata->filelen + pagemask) & ~pagemask; | |
7f307238 | 2887 | |
c9ffd2ea TG |
2888 | return TRUE; |
2889 | } | |
68ffbac6 | 2890 | |
c9ffd2ea TG |
2891 | /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds |
2892 | fields in header. */ | |
68ffbac6 | 2893 | |
86eafac0 | 2894 | static bfd_boolean |
c9ffd2ea TG |
2895 | bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata) |
2896 | { | |
2897 | unsigned wide = mach_o_wide_p (&mdata->header); | |
2898 | unsigned int hdrlen; | |
2899 | ufile_ptr offset; | |
2900 | bfd_mach_o_load_command *cmd; | |
2901 | unsigned int align; | |
86eafac0 | 2902 | bfd_boolean ret = TRUE; |
c9ffd2ea TG |
2903 | |
2904 | hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; | |
2905 | align = wide ? 8 - 1 : 4 - 1; | |
2906 | offset = hdrlen; | |
2907 | mdata->header.ncmds = 0; | |
50d10658 | 2908 | |
c9ffd2ea TG |
2909 | for (cmd = mdata->first_command; cmd; cmd = cmd->next) |
2910 | { | |
2911 | mdata->header.ncmds++; | |
2912 | cmd->offset = offset; | |
68ffbac6 | 2913 | |
c9ffd2ea TG |
2914 | switch (cmd->type) |
2915 | { | |
2916 | case BFD_MACH_O_LC_SEGMENT_64: | |
2917 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
2918 | + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects; | |
2919 | break; | |
2920 | case BFD_MACH_O_LC_SEGMENT: | |
2921 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
2922 | + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects; | |
2923 | break; | |
2924 | case BFD_MACH_O_LC_SYMTAB: | |
2925 | cmd->len = sizeof (struct mach_o_symtab_command_external) | |
2926 | + BFD_MACH_O_LC_SIZE; | |
2927 | break; | |
2928 | case BFD_MACH_O_LC_DYSYMTAB: | |
2929 | cmd->len = sizeof (struct mach_o_dysymtab_command_external) | |
2930 | + BFD_MACH_O_LC_SIZE; | |
2931 | break; | |
2932 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2933 | cmd->len = sizeof (struct mach_o_dylib_command_external) | |
2934 | + BFD_MACH_O_LC_SIZE; | |
2935 | cmd->command.dylib.name_offset = cmd->len; | |
2936 | cmd->len += strlen (cmd->command.dylib.name_str); | |
2937 | cmd->len = (cmd->len + align) & ~align; | |
2938 | break; | |
2939 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2940 | cmd->len = sizeof (struct mach_o_str_command_external) | |
2941 | + BFD_MACH_O_LC_SIZE; | |
2942 | cmd->command.dylinker.name_offset = cmd->len; | |
2943 | cmd->len += strlen (cmd->command.dylinker.name_str); | |
2944 | cmd->len = (cmd->len + align) & ~align; | |
2945 | break; | |
2946 | case BFD_MACH_O_LC_MAIN: | |
2947 | cmd->len = sizeof (struct mach_o_entry_point_command_external) | |
2948 | + BFD_MACH_O_LC_SIZE; | |
2949 | break; | |
2950 | case BFD_MACH_O_LC_DYLD_INFO: | |
2951 | cmd->len = sizeof (struct mach_o_dyld_info_command_external) | |
2952 | + BFD_MACH_O_LC_SIZE; | |
2953 | break; | |
2954 | default: | |
4eca0228 | 2955 | _bfd_error_handler |
d42c267e AM |
2956 | (_("unable to layout unknown load command %#x"), |
2957 | cmd->type); | |
86eafac0 | 2958 | ret = FALSE; |
c9ffd2ea | 2959 | break; |
7f307238 | 2960 | } |
c9ffd2ea TG |
2961 | |
2962 | BFD_ASSERT (cmd->len % (align + 1) == 0); | |
2963 | offset += cmd->len; | |
7f307238 | 2964 | } |
c9ffd2ea TG |
2965 | mdata->header.sizeofcmds = offset - hdrlen; |
2966 | mdata->filelen = offset; | |
86eafac0 NC |
2967 | |
2968 | return ret; | |
c9ffd2ea | 2969 | } |
7f307238 | 2970 | |
c9ffd2ea TG |
2971 | /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a |
2972 | segment. */ | |
2973 | ||
2974 | static void | |
2975 | bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata, | |
2976 | bfd_mach_o_load_command *cmd, | |
2977 | const char *segname, unsigned int nbr_sect) | |
2978 | { | |
2979 | bfd_mach_o_segment_command *seg = &cmd->command.segment; | |
2980 | unsigned wide = mach_o_wide_p (&mdata->header); | |
2981 | ||
2982 | /* Init segment command. */ | |
2983 | cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT; | |
2984 | cmd->type_required = FALSE; | |
2985 | ||
2986 | strcpy (seg->segname, segname); | |
2987 | seg->nsects = nbr_sect; | |
2988 | ||
2989 | seg->vmaddr = 0; | |
2990 | seg->vmsize = 0; | |
2991 | ||
2992 | seg->fileoff = 0; | |
2993 | seg->filesize = 0; | |
2994 | seg->maxprot = 0; | |
2995 | seg->initprot = 0; | |
2996 | seg->flags = 0; | |
2997 | seg->sect_head = NULL; | |
2998 | seg->sect_tail = NULL; | |
7f307238 IS |
2999 | } |
3000 | ||
3001 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
3002 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
3003 | and copy functionality. */ | |
154a1ee5 TG |
3004 | |
3005 | bfd_boolean | |
3006 | bfd_mach_o_build_commands (bfd *abfd) | |
3007 | { | |
046b007d | 3008 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bbd56171 | 3009 | unsigned wide = mach_o_wide_p (&mdata->header); |
c9ffd2ea TG |
3010 | unsigned int nbr_segcmd = 0; |
3011 | bfd_mach_o_load_command *commands; | |
3012 | unsigned int nbr_commands; | |
bbd56171 IS |
3013 | int symtab_idx = -1; |
3014 | int dysymtab_idx = -1; | |
c9ffd2ea TG |
3015 | int main_idx = -1; |
3016 | unsigned int i; | |
154a1ee5 | 3017 | |
c9ffd2ea TG |
3018 | /* Return now if already built. */ |
3019 | if (mdata->header.ncmds != 0) | |
3020 | return TRUE; | |
154a1ee5 | 3021 | |
7f307238 | 3022 | /* Fill in the file type, if not already set. */ |
7f307238 | 3023 | if (mdata->header.filetype == 0) |
154a1ee5 | 3024 | { |
7f307238 | 3025 | if (abfd->flags & EXEC_P) |
07d6d2b8 | 3026 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; |
7f307238 | 3027 | else if (abfd->flags & DYNAMIC) |
07d6d2b8 | 3028 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; |
7f307238 | 3029 | else |
07d6d2b8 | 3030 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; |
154a1ee5 | 3031 | } |
7f307238 IS |
3032 | |
3033 | /* If hasn't already been done, flatten sections list, and sort | |
3034 | if/when required. Must be done before the symbol table is adjusted, | |
3035 | since that depends on properly numbered sections. */ | |
3036 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
3037 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
3038 | return FALSE; | |
3039 | ||
3040 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
3041 | partition out any indirect symbols. */ | |
b22161d6 | 3042 | if (!bfd_mach_o_mangle_symbols (abfd)) |
7f307238 IS |
3043 | return FALSE; |
3044 | ||
c9ffd2ea TG |
3045 | /* Segment commands. */ |
3046 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) | |
3047 | { | |
3048 | /* Only one segment for all the sections. But the segment is | |
3049 | optional if there is no sections. */ | |
3050 | nbr_segcmd = (mdata->nsects > 0) ? 1 : 0; | |
3051 | } | |
3052 | else | |
3053 | { | |
3054 | bfd_mach_o_section *prev_sect = NULL; | |
bbd56171 | 3055 | |
c9ffd2ea TG |
3056 | /* One pagezero segment and one linkedit segment. */ |
3057 | nbr_segcmd = 2; | |
bbd56171 | 3058 | |
c9ffd2ea TG |
3059 | /* Create one segment for associated segment name in sections. |
3060 | Assume that sections with the same segment name are consecutive. */ | |
3061 | for (i = 0; i < mdata->nsects; i++) | |
3062 | { | |
3063 | bfd_mach_o_section *this_sect = mdata->sections[i]; | |
bbd56171 | 3064 | |
c9ffd2ea TG |
3065 | if (prev_sect == NULL |
3066 | || strcmp (prev_sect->segname, this_sect->segname) != 0) | |
3067 | { | |
3068 | nbr_segcmd++; | |
3069 | prev_sect = this_sect; | |
3070 | } | |
3071 | } | |
154a1ee5 | 3072 | } |
154a1ee5 | 3073 | |
c9ffd2ea TG |
3074 | nbr_commands = nbr_segcmd; |
3075 | ||
3076 | /* One command for the symbol table (only if there are symbols. */ | |
7f307238 | 3077 | if (bfd_get_symcount (abfd) > 0) |
c9ffd2ea | 3078 | symtab_idx = nbr_commands++; |
c2f09c75 | 3079 | |
bbd56171 IS |
3080 | /* FIXME: |
3081 | This is a rather crude test for whether we should build a dysymtab. */ | |
3082 | if (bfd_mach_o_should_emit_dysymtab () | |
3083 | && bfd_get_symcount (abfd)) | |
3084 | { | |
bbd56171 IS |
3085 | /* If there should be a case where a dysymtab could be emitted without |
3086 | a symtab (seems improbable), this would need amending. */ | |
c9ffd2ea | 3087 | dysymtab_idx = nbr_commands++; |
bbd56171 | 3088 | } |
154a1ee5 | 3089 | |
c9ffd2ea TG |
3090 | /* Add an entry point command. */ |
3091 | if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE | |
3092 | && bfd_get_start_address (abfd) != 0) | |
3093 | main_idx = nbr_commands++; | |
c2f09c75 | 3094 | |
bbd56171 | 3095 | /* Well, we must have a header, at least. */ |
c9ffd2ea | 3096 | mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
f1bde64c | 3097 | |
bbd56171 | 3098 | /* A bit unusual, but no content is valid; |
7f307238 | 3099 | as -n empty.s -o empty.o */ |
c9ffd2ea TG |
3100 | if (nbr_commands == 0) |
3101 | { | |
3102 | /* Layout commands (well none...) and set headers command fields. */ | |
86eafac0 | 3103 | return bfd_mach_o_layout_commands (mdata); |
c9ffd2ea | 3104 | } |
f1bde64c | 3105 | |
c9ffd2ea TG |
3106 | /* Create commands for segments (and symtabs), prepend them. */ |
3107 | commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command)); | |
3108 | if (commands == NULL) | |
7f307238 | 3109 | return FALSE; |
c9ffd2ea TG |
3110 | for (i = 0; i < nbr_commands - 1; i++) |
3111 | commands[i].next = &commands[i + 1]; | |
3112 | commands[nbr_commands - 1].next = mdata->first_command; | |
3113 | if (mdata->first_command == NULL) | |
3114 | mdata->last_command = &commands[nbr_commands - 1]; | |
3115 | mdata->first_command = &commands[0]; | |
3116 | ||
3117 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0) | |
3118 | { | |
3119 | /* For object file, there is only one segment. */ | |
3120 | bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects); | |
3121 | } | |
3122 | else if (nbr_segcmd != 0) | |
68ffbac6 | 3123 | { |
c9ffd2ea | 3124 | bfd_mach_o_load_command *cmd; |
7f307238 | 3125 | |
c9ffd2ea | 3126 | BFD_ASSERT (nbr_segcmd >= 2); |
7f307238 | 3127 | |
c9ffd2ea TG |
3128 | /* The pagezero. */ |
3129 | cmd = &commands[0]; | |
3130 | bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0); | |
3131 | ||
3132 | /* Segments from sections. */ | |
3133 | cmd++; | |
3134 | for (i = 0; i < mdata->nsects;) | |
7f307238 | 3135 | { |
c9ffd2ea TG |
3136 | const char *segname = mdata->sections[i]->segname; |
3137 | unsigned int nbr_sect = 1; | |
3138 | ||
3139 | /* Count number of sections for this segment. */ | |
3140 | for (i++; i < mdata->nsects; i++) | |
3141 | if (strcmp (mdata->sections[i]->segname, segname) == 0) | |
3142 | nbr_sect++; | |
3143 | else | |
3144 | break; | |
3145 | ||
3146 | bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect); | |
3147 | cmd++; | |
7f307238 | 3148 | } |
bbd56171 | 3149 | |
c9ffd2ea TG |
3150 | /* The linkedit. */ |
3151 | bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0); | |
7f307238 | 3152 | } |
f1bde64c | 3153 | |
bbd56171 | 3154 | if (symtab_idx >= 0) |
7f307238 IS |
3155 | { |
3156 | /* Init symtab command. */ | |
c9ffd2ea | 3157 | bfd_mach_o_load_command *cmd = &commands[symtab_idx]; |
68ffbac6 | 3158 | |
bbd56171 | 3159 | cmd->type = BFD_MACH_O_LC_SYMTAB; |
bbd56171 | 3160 | cmd->type_required = FALSE; |
7f307238 | 3161 | } |
154a1ee5 | 3162 | |
bbd56171 IS |
3163 | /* If required, setup symtab command, see comment above about the quality |
3164 | of this test. */ | |
3165 | if (dysymtab_idx >= 0) | |
7f307238 | 3166 | { |
c9ffd2ea | 3167 | bfd_mach_o_load_command *cmd = &commands[dysymtab_idx]; |
bbd56171 | 3168 | |
7f307238 | 3169 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; |
7f307238 | 3170 | cmd->type_required = FALSE; |
c9ffd2ea TG |
3171 | } |
3172 | ||
3173 | /* Create the main command. */ | |
3174 | if (main_idx >= 0) | |
3175 | { | |
3176 | bfd_mach_o_load_command *cmd = &commands[main_idx]; | |
7f307238 | 3177 | |
c9ffd2ea TG |
3178 | cmd->type = BFD_MACH_O_LC_MAIN; |
3179 | cmd->type_required = TRUE; | |
3180 | ||
3181 | cmd->command.main.entryoff = 0; | |
3182 | cmd->command.main.stacksize = 0; | |
154a1ee5 | 3183 | } |
154a1ee5 | 3184 | |
c9ffd2ea | 3185 | /* Layout commands. */ |
86eafac0 NC |
3186 | if (! bfd_mach_o_layout_commands (mdata)) |
3187 | return FALSE; | |
c9ffd2ea | 3188 | |
7f307238 IS |
3189 | /* So, now we have sized the commands and the filelen set to that. |
3190 | Now we can build the segment command and set the section file offsets. */ | |
c9ffd2ea TG |
3191 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) |
3192 | { | |
3193 | for (i = 0; i < nbr_segcmd; i++) | |
3194 | if (!bfd_mach_o_build_obj_seg_command | |
3195 | (abfd, &commands[i].command.segment)) | |
3196 | return FALSE; | |
3197 | } | |
3198 | else | |
3199 | { | |
3200 | bfd_vma maxvma = 0; | |
7f307238 | 3201 | |
c9ffd2ea TG |
3202 | /* Skip pagezero and linkedit segments. */ |
3203 | for (i = 1; i < nbr_segcmd - 1; i++) | |
3204 | { | |
3205 | bfd_mach_o_segment_command *seg = &commands[i].command.segment; | |
3206 | ||
3207 | if (!bfd_mach_o_build_exec_seg_command (abfd, seg)) | |
3208 | return FALSE; | |
3209 | ||
3210 | if (seg->vmaddr + seg->vmsize > maxvma) | |
3211 | maxvma = seg->vmaddr + seg->vmsize; | |
3212 | } | |
3213 | ||
3214 | /* Set the size of __PAGEZERO. */ | |
3215 | commands[0].command.segment.vmsize = | |
3216 | commands[1].command.segment.vmaddr; | |
3217 | ||
3218 | /* Set the vma and fileoff of __LINKEDIT. */ | |
3219 | commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma; | |
3220 | commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen; | |
3221 | ||
3222 | /* Set entry point (once segments have been laid out). */ | |
3223 | if (main_idx >= 0) | |
3224 | commands[main_idx].command.main.entryoff = | |
3225 | bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr; | |
3226 | } | |
7f307238 | 3227 | |
154a1ee5 TG |
3228 | return TRUE; |
3229 | } | |
3230 | ||
3231 | /* Set the contents of a section. */ | |
3232 | ||
3233 | bfd_boolean | |
3234 | bfd_mach_o_set_section_contents (bfd *abfd, | |
3235 | asection *section, | |
3236 | const void * location, | |
3237 | file_ptr offset, | |
3238 | bfd_size_type count) | |
3239 | { | |
3240 | file_ptr pos; | |
3241 | ||
7f307238 IS |
3242 | /* Trying to write the first section contents will trigger the creation of |
3243 | the load commands if they are not already present. */ | |
c9ffd2ea | 3244 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
154a1ee5 TG |
3245 | return FALSE; |
3246 | ||
3247 | if (count == 0) | |
3248 | return TRUE; | |
3249 | ||
3250 | pos = section->filepos + offset; | |
3251 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
3252 | || bfd_bwrite (location, count, abfd) != count) | |
3253 | return FALSE; | |
3254 | ||
3255 | return TRUE; | |
3256 | } | |
3257 | ||
3258 | int | |
116c20d2 | 3259 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 3260 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
3261 | { |
3262 | return 0; | |
3263 | } | |
3264 | ||
3265 | /* Make an empty symbol. This is required only because | |
3266 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
3267 | ||
154a1ee5 | 3268 | asymbol * |
116c20d2 | 3269 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 3270 | { |
d3ce72d0 NC |
3271 | asymbol *new_symbol; |
3272 | ||
3273 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
3274 | if (new_symbol == NULL) | |
3275 | return new_symbol; | |
3276 | new_symbol->the_bfd = abfd; | |
b22161d6 | 3277 | new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET; |
d3ce72d0 | 3278 | return new_symbol; |
3af9a47b NC |
3279 | } |
3280 | ||
154a1ee5 | 3281 | static bfd_boolean |
47daa70f | 3282 | bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header) |
3af9a47b | 3283 | { |
46d1c23b | 3284 | struct mach_o_header_external raw; |
1e8a024a | 3285 | unsigned int size; |
edeb6e24 | 3286 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 3287 | |
1e8a024a | 3288 | /* Just read the magic number. */ |
47daa70f | 3289 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3290 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 3291 | return FALSE; |
3af9a47b | 3292 | |
46d1c23b | 3293 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
3294 | { |
3295 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3296 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 3297 | header->version = 1; |
3af9a47b NC |
3298 | get32 = bfd_getb32; |
3299 | } | |
46d1c23b | 3300 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 3301 | { |
a95a4550 | 3302 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 3303 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
3304 | header->version = 1; |
3305 | get32 = bfd_getl32; | |
3306 | } | |
46d1c23b | 3307 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3308 | { |
3309 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3310 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
3311 | header->version = 2; |
3312 | get32 = bfd_getb32; | |
3313 | } | |
46d1c23b | 3314 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3315 | { |
3316 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 3317 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 3318 | header->version = 2; |
3af9a47b NC |
3319 | get32 = bfd_getl32; |
3320 | } | |
3321 | else | |
3322 | { | |
3323 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 3324 | return FALSE; |
3af9a47b | 3325 | } |
a95a4550 | 3326 | |
1e8a024a | 3327 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 3328 | size = mach_o_wide_p (header) ? |
154a1ee5 | 3329 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 3330 | |
47daa70f | 3331 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3332 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 3333 | return FALSE; |
1e8a024a | 3334 | |
46d1c23b TG |
3335 | header->cputype = (*get32) (raw.cputype); |
3336 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
3337 | header->filetype = (*get32) (raw.filetype); | |
3338 | header->ncmds = (*get32) (raw.ncmds); | |
3339 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
3340 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 3341 | |
c2f09c75 | 3342 | if (mach_o_wide_p (header)) |
46d1c23b | 3343 | header->reserved = (*get32) (raw.reserved); |
facf03f2 TG |
3344 | else |
3345 | header->reserved = 0; | |
1e8a024a | 3346 | |
154a1ee5 | 3347 | return TRUE; |
3af9a47b NC |
3348 | } |
3349 | ||
f1bde64c TG |
3350 | bfd_boolean |
3351 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
3352 | { | |
3353 | bfd_mach_o_section *s; | |
a4551119 | 3354 | unsigned bfdalign = bfd_get_section_alignment (abfd, sec); |
f1bde64c TG |
3355 | |
3356 | s = bfd_mach_o_get_mach_o_section (sec); | |
3357 | if (s == NULL) | |
3358 | { | |
3359 | flagword bfd_flags; | |
a4551119 | 3360 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
3361 | |
3362 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
3363 | if (s == NULL) | |
3364 | return FALSE; | |
3365 | sec->used_by_bfd = s; | |
3366 | s->bfdsection = sec; | |
3367 | ||
a4551119 TG |
3368 | /* Create the Darwin seg/sect name pair from the bfd name. |
3369 | If this is a canonical name for which a specific paiting exists | |
3370 | there will also be defined flags, type, attribute and alignment | |
3371 | values. */ | |
3372 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
3373 | if (xlat != NULL) | |
3374 | { | |
3375 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
68ffbac6 | 3376 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign |
a4551119 | 3377 | : bfdalign; |
a253d456 | 3378 | (void) bfd_set_section_alignment (abfd, sec, s->align); |
a4551119 TG |
3379 | bfd_flags = bfd_get_section_flags (abfd, sec); |
3380 | if (bfd_flags == SEC_NO_FLAGS) | |
3381 | bfd_set_section_flags (abfd, sec, xlat->bfd_flags); | |
3382 | } | |
f1bde64c | 3383 | else |
a4551119 TG |
3384 | /* Create default flags. */ |
3385 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
3386 | } |
3387 | ||
3388 | return _bfd_generic_new_section_hook (abfd, sec); | |
3389 | } | |
3390 | ||
3391 | static void | |
3392 | bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec, | |
07d6d2b8 | 3393 | unsigned long prot) |
3af9a47b | 3394 | { |
117ed4f8 | 3395 | flagword flags; |
f1bde64c | 3396 | bfd_mach_o_section *section; |
3af9a47b | 3397 | |
f1bde64c TG |
3398 | flags = bfd_get_section_flags (abfd, sec); |
3399 | section = bfd_mach_o_get_mach_o_section (sec); | |
3af9a47b | 3400 | |
a4551119 TG |
3401 | /* TODO: see if we should use the xlat system for doing this by |
3402 | preference and fall back to this for unknown sections. */ | |
3403 | ||
8462aec7 | 3404 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 3405 | { |
8462aec7 TG |
3406 | /* Try to guess flags. */ |
3407 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
07d6d2b8 | 3408 | flags = SEC_DEBUGGING; |
8462aec7 | 3409 | else |
07d6d2b8 AM |
3410 | { |
3411 | flags = SEC_ALLOC; | |
3412 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
3413 | != BFD_MACH_O_S_ZEROFILL) | |
3414 | { | |
3415 | flags |= SEC_LOAD; | |
3416 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
3417 | flags |= SEC_CODE; | |
3418 | if (prot & BFD_MACH_O_PROT_WRITE) | |
3419 | flags |= SEC_DATA; | |
3420 | else if (prot & BFD_MACH_O_PROT_READ) | |
3421 | flags |= SEC_READONLY; | |
3422 | } | |
3423 | } | |
ef17cb22 | 3424 | } |
15e1c58a TG |
3425 | else |
3426 | { | |
8462aec7 | 3427 | if ((flags & SEC_DEBUGGING) == 0) |
07d6d2b8 | 3428 | flags |= SEC_ALLOC; |
15e1c58a | 3429 | } |
8462aec7 TG |
3430 | |
3431 | if (section->offset != 0) | |
3432 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
3433 | if (section->nreloc != 0) |
3434 | flags |= SEC_RELOC; | |
3435 | ||
f1bde64c TG |
3436 | bfd_set_section_flags (abfd, sec, flags); |
3437 | ||
3438 | sec->vma = section->addr; | |
3439 | sec->lma = section->addr; | |
3440 | sec->size = section->size; | |
3441 | sec->filepos = section->offset; | |
3442 | sec->alignment_power = section->align; | |
3443 | sec->segment_mark = 0; | |
3444 | sec->reloc_count = section->nreloc; | |
3445 | sec->rel_filepos = section->reloff; | |
3446 | } | |
3447 | ||
3448 | static asection * | |
3449 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
07d6d2b8 AM |
3450 | const unsigned char *segname, |
3451 | const unsigned char *sectname) | |
f1bde64c TG |
3452 | { |
3453 | const char *sname; | |
3454 | flagword flags; | |
a95a4550 | 3455 | |
f1bde64c TG |
3456 | bfd_mach_o_convert_section_name_to_bfd |
3457 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
3458 | if (sname == NULL) | |
3459 | return NULL; | |
3af9a47b | 3460 | |
f1bde64c | 3461 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
3462 | } |
3463 | ||
f1bde64c | 3464 | static asection * |
47daa70f | 3465 | bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot) |
3af9a47b | 3466 | { |
46d1c23b | 3467 | struct mach_o_section_32_external raw; |
f1bde64c TG |
3468 | asection *sec; |
3469 | bfd_mach_o_section *section; | |
3af9a47b | 3470 | |
47daa70f TG |
3471 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
3472 | != BFD_MACH_O_SECTION_SIZE) | |
f1bde64c | 3473 | return NULL; |
a95a4550 | 3474 | |
5a5cbf72 | 3475 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3476 | if (sec == NULL) |
3477 | return NULL; | |
3478 | ||
3479 | section = bfd_mach_o_get_mach_o_section (sec); | |
3480 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3481 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3482 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3483 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3484 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
3485 | section->size = bfd_h_get_32 (abfd, raw.size); | |
3486 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3487 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3488 | /* PR 17512: file: 0017eb76. */ |
3489 | if (section->align > 64) | |
3490 | { | |
4eca0228 | 3491 | _bfd_error_handler |
d42c267e | 3492 | (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, " |
4eca0228 | 3493 | "using 32 instead"), section->align); |
c86934ce NC |
3494 | section->align = 32; |
3495 | } | |
46d1c23b TG |
3496 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3497 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3498 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3499 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3500 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 3501 | section->reserved3 = 0; |
1e8a024a | 3502 | |
f1bde64c | 3503 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
1e8a024a | 3504 | |
f1bde64c | 3505 | return sec; |
1e8a024a TG |
3506 | } |
3507 | ||
f1bde64c | 3508 | static asection * |
47daa70f | 3509 | bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot) |
1e8a024a | 3510 | { |
46d1c23b | 3511 | struct mach_o_section_64_external raw; |
f1bde64c TG |
3512 | asection *sec; |
3513 | bfd_mach_o_section *section; | |
1e8a024a | 3514 | |
47daa70f TG |
3515 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
3516 | != BFD_MACH_O_SECTION_64_SIZE) | |
f1bde64c TG |
3517 | return NULL; |
3518 | ||
5a5cbf72 | 3519 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3520 | if (sec == NULL) |
3521 | return NULL; | |
1e8a024a | 3522 | |
f1bde64c TG |
3523 | section = bfd_mach_o_get_mach_o_section (sec); |
3524 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3525 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3526 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3527 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3528 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
3529 | section->size = bfd_h_get_64 (abfd, raw.size); | |
3530 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3531 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3532 | if (section->align > 64) |
3533 | { | |
4eca0228 | 3534 | _bfd_error_handler |
d42c267e | 3535 | (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, " |
4eca0228 | 3536 | "using 32 instead"), section->align); |
c86934ce NC |
3537 | section->align = 32; |
3538 | } | |
46d1c23b TG |
3539 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3540 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3541 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3542 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3543 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
3544 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 3545 | |
f1bde64c | 3546 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
3af9a47b | 3547 | |
f1bde64c | 3548 | return sec; |
3af9a47b NC |
3549 | } |
3550 | ||
f1bde64c | 3551 | static asection * |
47daa70f | 3552 | bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide) |
1e8a024a TG |
3553 | { |
3554 | if (wide) | |
47daa70f | 3555 | return bfd_mach_o_read_section_64 (abfd, prot); |
1e8a024a | 3556 | else |
47daa70f | 3557 | return bfd_mach_o_read_section_32 (abfd, prot); |
1e8a024a TG |
3558 | } |
3559 | ||
afbb9e17 | 3560 | static bfd_boolean |
ab273af8 | 3561 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
07d6d2b8 AM |
3562 | bfd_mach_o_symtab_command *sym, |
3563 | bfd_mach_o_asymbol *s, | |
3564 | unsigned long i) | |
3af9a47b | 3565 | { |
046b007d | 3566 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 3567 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
3568 | unsigned int symwidth = |
3569 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 3570 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 3571 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
3572 | unsigned char type = -1; |
3573 | unsigned char section = -1; | |
3574 | short desc = -1; | |
1e8a024a | 3575 | symvalue value = -1; |
3af9a47b NC |
3576 | unsigned long stroff = -1; |
3577 | unsigned int symtype = -1; | |
3578 | ||
3579 | BFD_ASSERT (sym->strtab != NULL); | |
3580 | ||
c2f09c75 | 3581 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 3582 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 3583 | { |
4eca0228 | 3584 | _bfd_error_handler |
695344c0 | 3585 | /* xgettext:c-format */ |
07d6d2b8 AM |
3586 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"), |
3587 | symwidth, symoff); | |
afbb9e17 | 3588 | return FALSE; |
3af9a47b NC |
3589 | } |
3590 | ||
46d1c23b TG |
3591 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
3592 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 3593 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
3594 | section = bfd_h_get_8 (abfd, raw.n_sect); |
3595 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 3596 | if (wide) |
46d1c23b | 3597 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 3598 | else |
46d1c23b | 3599 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
3600 | |
3601 | if (stroff >= sym->strsize) | |
3602 | { | |
4eca0228 | 3603 | _bfd_error_handler |
695344c0 | 3604 | /* xgettext:c-format */ |
07d6d2b8 AM |
3605 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"), |
3606 | stroff, | |
3607 | sym->strsize); | |
afbb9e17 | 3608 | return FALSE; |
3af9a47b NC |
3609 | } |
3610 | ||
92bc0e80 TG |
3611 | s->symbol.the_bfd = abfd; |
3612 | s->symbol.name = sym->strtab + stroff; | |
3613 | s->symbol.value = value; | |
3614 | s->symbol.flags = 0x0; | |
b22161d6 | 3615 | s->symbol.udata.i = i; |
92bc0e80 TG |
3616 | s->n_type = type; |
3617 | s->n_sect = section; | |
3618 | s->n_desc = desc; | |
3af9a47b NC |
3619 | |
3620 | if (type & BFD_MACH_O_N_STAB) | |
3621 | { | |
92bc0e80 TG |
3622 | s->symbol.flags |= BSF_DEBUGGING; |
3623 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
3624 | switch (type) |
3625 | { | |
3626 | case N_FUN: | |
3627 | case N_STSYM: | |
3628 | case N_LCSYM: | |
3629 | case N_BNSYM: | |
3630 | case N_SLINE: | |
3631 | case N_ENSYM: | |
3632 | case N_ECOMM: | |
3633 | case N_ECOML: | |
3634 | case N_GSYM: | |
3635 | if ((section > 0) && (section <= mdata->nsects)) | |
3636 | { | |
92bc0e80 TG |
3637 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3638 | s->symbol.value = | |
07d6d2b8 | 3639 | s->symbol.value - mdata->sections[section - 1]->addr; |
15e1c58a TG |
3640 | } |
3641 | break; | |
3642 | } | |
3af9a47b NC |
3643 | } |
3644 | else | |
3645 | { | |
b22161d6 | 3646 | if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)) |
92bc0e80 | 3647 | s->symbol.flags |= BSF_GLOBAL; |
b22161d6 | 3648 | else |
92bc0e80 | 3649 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
3650 | |
3651 | switch (symtype) | |
3652 | { | |
3653 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
3654 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
3655 | && s->symbol.value != 0) | |
3656 | { | |
3657 | /* A common symbol. */ | |
3658 | s->symbol.section = bfd_com_section_ptr; | |
3659 | s->symbol.flags = BSF_NO_FLAGS; | |
3660 | } | |
3661 | else | |
3662 | { | |
3663 | s->symbol.section = bfd_und_section_ptr; | |
3664 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
3665 | s->symbol.flags |= BSF_WEAK; | |
3666 | } | |
3af9a47b NC |
3667 | break; |
3668 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 3669 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3670 | break; |
3671 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 3672 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
3673 | break; |
3674 | case BFD_MACH_O_N_SECT: | |
3675 | if ((section > 0) && (section <= mdata->nsects)) | |
3676 | { | |
92bc0e80 TG |
3677 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3678 | s->symbol.value = | |
07d6d2b8 | 3679 | s->symbol.value - mdata->sections[section - 1]->addr; |
3af9a47b NC |
3680 | } |
3681 | else | |
3682 | { | |
3683 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
3684 | if (section != 0) | |
3685 | { | |
4eca0228 | 3686 | _bfd_error_handler |
695344c0 | 3687 | /* xgettext:c-format */ |
4eca0228 AM |
3688 | (_("bfd_mach_o_read_symtab_symbol: " |
3689 | "symbol \"%s\" specified invalid section %d (max %lu): " | |
3690 | "setting to undefined"), | |
3691 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 3692 | } |
92bc0e80 | 3693 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3694 | } |
3695 | break; | |
3696 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
3697 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
3698 | won't be followed by the referenced one. This looks harmless | |
3699 | unless we start using the linker. */ | |
3700 | s->symbol.flags |= BSF_INDIRECT; | |
3701 | s->symbol.section = bfd_ind_section_ptr; | |
3702 | s->symbol.value = 0; | |
3af9a47b NC |
3703 | break; |
3704 | default: | |
4eca0228 | 3705 | _bfd_error_handler |
695344c0 | 3706 | /* xgettext:c-format */ |
4eca0228 AM |
3707 | (_("bfd_mach_o_read_symtab_symbol: " |
3708 | "symbol \"%s\" specified invalid type field 0x%x: " | |
3709 | "setting to undefined"), s->symbol.name, symtype); | |
92bc0e80 | 3710 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3711 | break; |
3712 | } | |
3713 | } | |
3714 | ||
afbb9e17 | 3715 | return TRUE; |
3af9a47b NC |
3716 | } |
3717 | ||
c5012cd8 | 3718 | bfd_boolean |
ab273af8 | 3719 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 3720 | { |
046b007d TG |
3721 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3722 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3723 | ||
3724 | /* Fail if there is no symtab. */ | |
3725 | if (sym == NULL) | |
afbb9e17 | 3726 | return FALSE; |
046b007d TG |
3727 | |
3728 | /* Success if already loaded. */ | |
3729 | if (sym->strtab) | |
afbb9e17 | 3730 | return TRUE; |
3af9a47b NC |
3731 | |
3732 | if (abfd->flags & BFD_IN_MEMORY) | |
3733 | { | |
3734 | struct bfd_in_memory *b; | |
3735 | ||
3736 | b = (struct bfd_in_memory *) abfd->iostream; | |
3737 | ||
3738 | if ((sym->stroff + sym->strsize) > b->size) | |
3739 | { | |
3740 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 3741 | return FALSE; |
3af9a47b | 3742 | } |
f075ee0c | 3743 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 3744 | } |
046b007d | 3745 | else |
3af9a47b | 3746 | { |
8bdf0be1 NC |
3747 | /* See PR 21840 for a reproducer. */ |
3748 | if ((sym->strsize + 1) == 0) | |
3749 | return FALSE; | |
e7287c7f | 3750 | sym->strtab = bfd_alloc (abfd, sym->strsize + 1); |
046b007d | 3751 | if (sym->strtab == NULL) |
07d6d2b8 | 3752 | return FALSE; |
046b007d TG |
3753 | |
3754 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 | |
07d6d2b8 AM |
3755 | || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize) |
3756 | { | |
a1165289 NC |
3757 | /* PR 17512: file: 10888-1609-0.004. */ |
3758 | bfd_release (abfd, sym->strtab); | |
3759 | sym->strtab = NULL; | |
07d6d2b8 AM |
3760 | bfd_set_error (bfd_error_file_truncated); |
3761 | return FALSE; | |
3762 | } | |
e7287c7f NC |
3763 | /* Zero terminate the string table. */ |
3764 | sym->strtab[sym->strsize] = 0; | |
3af9a47b NC |
3765 | } |
3766 | ||
afbb9e17 | 3767 | return TRUE; |
3af9a47b NC |
3768 | } |
3769 | ||
c5012cd8 | 3770 | bfd_boolean |
ab273af8 | 3771 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 3772 | { |
046b007d TG |
3773 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3774 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 3775 | unsigned long i; |
3af9a47b | 3776 | |
092d27ff | 3777 | if (sym == NULL || sym->symbols) |
0a9d414a NC |
3778 | /* Return now if there are no symbols or if already loaded. */ |
3779 | return TRUE; | |
046b007d | 3780 | |
64d29018 | 3781 | sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol)); |
3af9a47b NC |
3782 | if (sym->symbols == NULL) |
3783 | { | |
4eca0228 AM |
3784 | _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: " |
3785 | "unable to allocate memory for symbols")); | |
64d29018 | 3786 | sym->nsyms = 0; |
afbb9e17 | 3787 | return FALSE; |
3af9a47b | 3788 | } |
a95a4550 | 3789 | |
afbb9e17 | 3790 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
64d29018 | 3791 | goto fail; |
3af9a47b NC |
3792 | |
3793 | for (i = 0; i < sym->nsyms; i++) | |
64d29018 NC |
3794 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
3795 | goto fail; | |
a95a4550 | 3796 | |
afbb9e17 | 3797 | return TRUE; |
64d29018 NC |
3798 | |
3799 | fail: | |
3800 | bfd_release (abfd, sym->symbols); | |
3801 | sym->symbols = NULL; | |
3802 | sym->nsyms = 0; | |
3803 | return FALSE; | |
3af9a47b NC |
3804 | } |
3805 | ||
3806 | static const char * | |
116c20d2 | 3807 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
3808 | { |
3809 | switch ((int) flavour) | |
3810 | { | |
15e1c58a TG |
3811 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
3812 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
3813 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
3814 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
3815 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
3816 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
3817 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
3818 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
3819 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
3820 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
3821 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
3822 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 3823 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
3824 | default: return "UNKNOWN"; |
3825 | } | |
3826 | } | |
3827 | ||
3828 | static const char * | |
116c20d2 | 3829 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
3830 | { |
3831 | switch ((int) flavour) | |
3832 | { | |
b32e07d7 TG |
3833 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
3834 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
3835 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
3836 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
3837 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
3838 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
3839 | default: return "UNKNOWN"; |
3840 | } | |
3841 | } | |
3842 | ||
452216ab | 3843 | static bfd_boolean |
ab273af8 | 3844 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
3845 | { |
3846 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 3847 | struct mach_o_str_command_external raw; |
3af9a47b | 3848 | unsigned int nameoff; |
4525c51a | 3849 | unsigned int namelen; |
3af9a47b | 3850 | |
47daa70f | 3851 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3852 | return FALSE; |
3af9a47b | 3853 | |
46d1c23b | 3854 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3af9a47b | 3855 | |
4525c51a TG |
3856 | cmd->name_offset = nameoff; |
3857 | namelen = command->len - nameoff; | |
3858 | nameoff += command->offset; | |
3859 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 3860 | if (cmd->name_str == NULL) |
452216ab | 3861 | return FALSE; |
4525c51a TG |
3862 | if (bfd_seek (abfd, nameoff, SEEK_SET) != 0 |
3863 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) | |
452216ab TG |
3864 | return FALSE; |
3865 | return TRUE; | |
3af9a47b NC |
3866 | } |
3867 | ||
452216ab | 3868 | static bfd_boolean |
ab273af8 | 3869 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3870 | { |
47daa70f | 3871 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 3872 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
46d1c23b | 3873 | struct mach_o_dylib_command_external raw; |
3af9a47b | 3874 | unsigned int nameoff; |
4525c51a | 3875 | unsigned int namelen; |
3af9a47b | 3876 | |
046b007d TG |
3877 | switch (command->type) |
3878 | { | |
3879 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 3880 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
046b007d | 3881 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 3882 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 3883 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 3884 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
3885 | break; |
3886 | default: | |
b32e07d7 | 3887 | BFD_FAIL (); |
452216ab | 3888 | return FALSE; |
046b007d | 3889 | } |
3af9a47b | 3890 | |
47daa70f | 3891 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3892 | return FALSE; |
3af9a47b | 3893 | |
46d1c23b TG |
3894 | nameoff = bfd_h_get_32 (abfd, raw.name); |
3895 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); | |
3896 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
3897 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
3898 | |
3899 | cmd->name_offset = command->offset + nameoff; | |
4525c51a TG |
3900 | namelen = command->len - nameoff; |
3901 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 3902 | if (cmd->name_str == NULL) |
452216ab | 3903 | return FALSE; |
47daa70f | 3904 | if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0 |
4525c51a | 3905 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) |
452216ab TG |
3906 | return FALSE; |
3907 | return TRUE; | |
3af9a47b NC |
3908 | } |
3909 | ||
452216ab | 3910 | static bfd_boolean |
7a79c514 | 3911 | bfd_mach_o_read_prebound_dylib (bfd *abfd, |
07d6d2b8 | 3912 | bfd_mach_o_load_command *command) |
3af9a47b | 3913 | { |
7a79c514 TG |
3914 | bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; |
3915 | struct mach_o_prebound_dylib_command_external raw; | |
3916 | unsigned int nameoff; | |
3917 | unsigned int modoff; | |
3918 | unsigned int str_len; | |
3919 | unsigned char *str; | |
3920 | ||
47daa70f | 3921 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3922 | return FALSE; |
7a79c514 TG |
3923 | |
3924 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3925 | modoff = bfd_h_get_32 (abfd, raw.linked_modules); | |
3926 | if (nameoff > command->len || modoff > command->len) | |
452216ab | 3927 | return FALSE; |
7a79c514 TG |
3928 | |
3929 | str_len = command->len - sizeof (raw); | |
3930 | str = bfd_alloc (abfd, str_len); | |
3931 | if (str == NULL) | |
452216ab | 3932 | return FALSE; |
7a79c514 | 3933 | if (bfd_bread (str, str_len, abfd) != str_len) |
452216ab | 3934 | return FALSE; |
7a79c514 TG |
3935 | |
3936 | cmd->name_offset = command->offset + nameoff; | |
3937 | cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules); | |
3938 | cmd->linked_modules_offset = command->offset + modoff; | |
3939 | ||
3940 | cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
3941 | cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
452216ab | 3942 | return TRUE; |
7a79c514 TG |
3943 | } |
3944 | ||
452216ab | 3945 | static bfd_boolean |
7a79c514 TG |
3946 | bfd_mach_o_read_prebind_cksum (bfd *abfd, |
3947 | bfd_mach_o_load_command *command) | |
3948 | { | |
3949 | bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum; | |
3950 | struct mach_o_prebind_cksum_command_external raw; | |
3af9a47b | 3951 | |
47daa70f | 3952 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3953 | return FALSE; |
7a79c514 TG |
3954 | |
3955 | cmd->cksum = bfd_get_32 (abfd, raw.cksum); | |
452216ab | 3956 | return TRUE; |
7a79c514 TG |
3957 | } |
3958 | ||
452216ab | 3959 | static bfd_boolean |
7a79c514 TG |
3960 | bfd_mach_o_read_twolevel_hints (bfd *abfd, |
3961 | bfd_mach_o_load_command *command) | |
3962 | { | |
3963 | bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints; | |
3964 | struct mach_o_twolevel_hints_command_external raw; | |
3965 | ||
47daa70f | 3966 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3967 | return FALSE; |
7a79c514 TG |
3968 | |
3969 | cmd->offset = bfd_get_32 (abfd, raw.offset); | |
3970 | cmd->nhints = bfd_get_32 (abfd, raw.nhints); | |
452216ab | 3971 | return TRUE; |
3af9a47b NC |
3972 | } |
3973 | ||
452216ab | 3974 | static bfd_boolean |
9f4a5bd1 TG |
3975 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) |
3976 | { | |
3977 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
3978 | struct mach_o_fvmlib_command_external raw; | |
3979 | unsigned int nameoff; | |
4525c51a | 3980 | unsigned int namelen; |
9f4a5bd1 | 3981 | |
47daa70f | 3982 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3983 | return FALSE; |
9f4a5bd1 TG |
3984 | |
3985 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3986 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); | |
3987 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
3988 | ||
3989 | fvm->name_offset = command->offset + nameoff; | |
4525c51a TG |
3990 | namelen = command->len - nameoff; |
3991 | fvm->name_str = bfd_alloc (abfd, namelen); | |
9f4a5bd1 | 3992 | if (fvm->name_str == NULL) |
452216ab | 3993 | return FALSE; |
9f4a5bd1 | 3994 | if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0 |
4525c51a | 3995 | || bfd_bread (fvm->name_str, namelen, abfd) != namelen) |
452216ab TG |
3996 | return FALSE; |
3997 | return TRUE; | |
9f4a5bd1 TG |
3998 | } |
3999 | ||
452216ab | 4000 | static bfd_boolean |
ab273af8 | 4001 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4002 | { |
b32e07d7 | 4003 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4004 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 4005 | unsigned int offset; |
3af9a47b NC |
4006 | unsigned int nflavours; |
4007 | unsigned int i; | |
4008 | ||
4009 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
4010 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
4011 | ||
b32e07d7 | 4012 | /* Count the number of threads. */ |
3af9a47b NC |
4013 | offset = 8; |
4014 | nflavours = 0; | |
4015 | while (offset != command->len) | |
4016 | { | |
46d1c23b TG |
4017 | struct mach_o_thread_command_external raw; |
4018 | ||
3af9a47b | 4019 | if (offset >= command->len) |
452216ab | 4020 | return FALSE; |
3af9a47b | 4021 | |
c2f09c75 | 4022 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4023 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4024 | return FALSE; |
3af9a47b | 4025 | |
46d1c23b | 4026 | offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4; |
3af9a47b NC |
4027 | nflavours++; |
4028 | } | |
4029 | ||
b32e07d7 | 4030 | /* Allocate threads. */ |
64d29018 NC |
4031 | cmd->flavours = bfd_alloc2 |
4032 | (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour)); | |
3af9a47b | 4033 | if (cmd->flavours == NULL) |
452216ab | 4034 | return FALSE; |
3af9a47b NC |
4035 | cmd->nflavours = nflavours; |
4036 | ||
4037 | offset = 8; | |
4038 | nflavours = 0; | |
4039 | while (offset != command->len) | |
4040 | { | |
46d1c23b TG |
4041 | struct mach_o_thread_command_external raw; |
4042 | ||
3af9a47b | 4043 | if (offset >= command->len) |
452216ab | 4044 | return FALSE; |
3af9a47b NC |
4045 | |
4046 | if (nflavours >= cmd->nflavours) | |
452216ab | 4047 | return FALSE; |
3af9a47b | 4048 | |
c2f09c75 | 4049 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4050 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4051 | return FALSE; |
3af9a47b | 4052 | |
46d1c23b TG |
4053 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
4054 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
4055 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
4056 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
4057 | nflavours++; |
4058 | } | |
4059 | ||
4060 | for (i = 0; i < nflavours; i++) | |
4061 | { | |
4062 | asection *bfdsec; | |
4063 | unsigned int snamelen; | |
4064 | char *sname; | |
4065 | const char *flavourstr; | |
4066 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
4067 | unsigned int j = 0; |
4068 | ||
3af9a47b NC |
4069 | switch (mdata->header.cputype) |
4070 | { | |
4071 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 4072 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
707e555b TG |
4073 | flavourstr = |
4074 | bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4075 | break; |
4076 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 4077 | case BFD_MACH_O_CPU_TYPE_X86_64: |
707e555b TG |
4078 | flavourstr = |
4079 | bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4080 | break; |
4081 | default: | |
4082 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
4083 | break; | |
4084 | } | |
a95a4550 | 4085 | |
3af9a47b | 4086 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 4087 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b | 4088 | if (sname == NULL) |
452216ab | 4089 | return FALSE; |
3af9a47b NC |
4090 | |
4091 | for (;;) | |
4092 | { | |
a95a4550 AM |
4093 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
4094 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 4095 | break; |
a95a4550 | 4096 | j++; |
3af9a47b NC |
4097 | } |
4098 | ||
117ed4f8 | 4099 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 4100 | |
3af9a47b NC |
4101 | bfdsec->vma = 0; |
4102 | bfdsec->lma = 0; | |
eea6121a | 4103 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
4104 | bfdsec->filepos = cmd->flavours[i].offset; |
4105 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
4106 | |
4107 | cmd->section = bfdsec; | |
4108 | } | |
4109 | ||
452216ab | 4110 | return TRUE; |
3af9a47b NC |
4111 | } |
4112 | ||
452216ab | 4113 | static bfd_boolean |
ab273af8 | 4114 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4115 | { |
046b007d | 4116 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 4117 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4118 | |
4119 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
4120 | ||
46d1c23b TG |
4121 | { |
4122 | struct mach_o_dysymtab_command_external raw; | |
4123 | ||
47daa70f | 4124 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4125 | return FALSE; |
3af9a47b | 4126 | |
46d1c23b TG |
4127 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
4128 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
4129 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
4130 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
4131 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
4132 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
4133 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
4134 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
4135 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
4136 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
4137 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
4138 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
4139 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
4140 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
4141 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
4142 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
4143 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
4144 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
4145 | } | |
046b007d TG |
4146 | |
4147 | if (cmd->nmodtab != 0) | |
4148 | { | |
046b007d TG |
4149 | unsigned int i; |
4150 | int wide = bfd_mach_o_wide_p (abfd); | |
4151 | unsigned int module_len = wide ? 56 : 52; | |
4152 | ||
4153 | cmd->dylib_module = | |
07d6d2b8 | 4154 | bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module)); |
046b007d | 4155 | if (cmd->dylib_module == NULL) |
07d6d2b8 | 4156 | return FALSE; |
046b007d TG |
4157 | |
4158 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
07d6d2b8 | 4159 | return FALSE; |
046b007d TG |
4160 | |
4161 | for (i = 0; i < cmd->nmodtab; i++) | |
07d6d2b8 AM |
4162 | { |
4163 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
4164 | unsigned long v; | |
4165 | unsigned char buf[56]; | |
4166 | ||
4167 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) | |
4168 | return FALSE; | |
4169 | ||
4170 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
4171 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
4172 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
4173 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
4174 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
4175 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
4176 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
4177 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
4178 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
4179 | v = bfd_h_get_32 (abfd, buf +36); | |
4180 | module->iinit = v & 0xffff; | |
4181 | module->iterm = (v >> 16) & 0xffff; | |
4182 | v = bfd_h_get_32 (abfd, buf + 40); | |
4183 | module->ninit = v & 0xffff; | |
4184 | module->nterm = (v >> 16) & 0xffff; | |
4185 | if (wide) | |
4186 | { | |
4187 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
4188 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
4189 | } | |
4190 | else | |
4191 | { | |
4192 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
4193 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
4194 | } | |
4195 | } | |
046b007d | 4196 | } |
afbb9e17 | 4197 | |
046b007d TG |
4198 | if (cmd->ntoc != 0) |
4199 | { | |
64d29018 | 4200 | unsigned long i; |
046b007d | 4201 | |
64d29018 | 4202 | cmd->dylib_toc = bfd_alloc2 |
07d6d2b8 | 4203 | (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content)); |
046b007d | 4204 | if (cmd->dylib_toc == NULL) |
07d6d2b8 | 4205 | return FALSE; |
046b007d TG |
4206 | |
4207 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
07d6d2b8 | 4208 | return FALSE; |
046b007d TG |
4209 | |
4210 | for (i = 0; i < cmd->ntoc; i++) | |
07d6d2b8 AM |
4211 | { |
4212 | struct mach_o_dylib_table_of_contents_external raw; | |
4213 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
046b007d | 4214 | |
07d6d2b8 AM |
4215 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4216 | return FALSE; | |
046b007d | 4217 | |
07d6d2b8 AM |
4218 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
4219 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
4220 | } | |
046b007d TG |
4221 | } |
4222 | ||
4223 | if (cmd->nindirectsyms != 0) | |
4224 | { | |
046b007d TG |
4225 | unsigned int i; |
4226 | ||
64d29018 | 4227 | cmd->indirect_syms = bfd_alloc2 |
07d6d2b8 | 4228 | (abfd, cmd->nindirectsyms, sizeof (unsigned int)); |
046b007d | 4229 | if (cmd->indirect_syms == NULL) |
07d6d2b8 | 4230 | return FALSE; |
046b007d TG |
4231 | |
4232 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4233 | return FALSE; |
046b007d TG |
4234 | |
4235 | for (i = 0; i < cmd->nindirectsyms; i++) | |
07d6d2b8 AM |
4236 | { |
4237 | unsigned char raw[4]; | |
4238 | unsigned int *is = &cmd->indirect_syms[i]; | |
046b007d | 4239 | |
07d6d2b8 AM |
4240 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
4241 | return FALSE; | |
046b007d | 4242 | |
07d6d2b8 AM |
4243 | *is = bfd_h_get_32 (abfd, raw); |
4244 | } | |
046b007d TG |
4245 | } |
4246 | ||
4247 | if (cmd->nextrefsyms != 0) | |
4248 | { | |
046b007d TG |
4249 | unsigned long v; |
4250 | unsigned int i; | |
4251 | ||
64d29018 | 4252 | cmd->ext_refs = bfd_alloc2 |
07d6d2b8 | 4253 | (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference)); |
046b007d | 4254 | if (cmd->ext_refs == NULL) |
07d6d2b8 | 4255 | return FALSE; |
046b007d TG |
4256 | |
4257 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4258 | return FALSE; |
046b007d TG |
4259 | |
4260 | for (i = 0; i < cmd->nextrefsyms; i++) | |
07d6d2b8 AM |
4261 | { |
4262 | unsigned char raw[4]; | |
4263 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
4264 | ||
4265 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) | |
4266 | return FALSE; | |
4267 | ||
4268 | /* Fields isym and flags are written as bit-fields, thus we need | |
4269 | a specific processing for endianness. */ | |
4270 | v = bfd_h_get_32 (abfd, raw); | |
4271 | if (bfd_big_endian (abfd)) | |
4272 | { | |
4273 | ref->isym = (v >> 8) & 0xffffff; | |
4274 | ref->flags = v & 0xff; | |
4275 | } | |
4276 | else | |
4277 | { | |
4278 | ref->isym = v & 0xffffff; | |
4279 | ref->flags = (v >> 24) & 0xff; | |
4280 | } | |
4281 | } | |
046b007d | 4282 | } |
3af9a47b | 4283 | |
b32e07d7 | 4284 | if (mdata->dysymtab) |
452216ab | 4285 | return FALSE; |
b32e07d7 TG |
4286 | mdata->dysymtab = cmd; |
4287 | ||
452216ab | 4288 | return TRUE; |
3af9a47b NC |
4289 | } |
4290 | ||
452216ab | 4291 | static bfd_boolean |
ab273af8 | 4292 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4293 | { |
046b007d TG |
4294 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
4295 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 4296 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
4297 | |
4298 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
4299 | ||
47daa70f | 4300 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4301 | return FALSE; |
a95a4550 | 4302 | |
46d1c23b TG |
4303 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
4304 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
4305 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
4306 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
4307 | symtab->symbols = NULL; |
4308 | symtab->strtab = NULL; | |
3af9a47b | 4309 | |
046b007d | 4310 | if (symtab->nsyms != 0) |
15e1c58a TG |
4311 | abfd->flags |= HAS_SYMS; |
4312 | ||
046b007d | 4313 | if (mdata->symtab) |
452216ab | 4314 | return FALSE; |
046b007d | 4315 | mdata->symtab = symtab; |
452216ab | 4316 | return TRUE; |
3af9a47b NC |
4317 | } |
4318 | ||
452216ab | 4319 | static bfd_boolean |
ab273af8 | 4320 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
4321 | { |
4322 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
4323 | |
4324 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
4325 | ||
47daa70f | 4326 | if (bfd_bread (cmd->uuid, 16, abfd) != 16) |
452216ab | 4327 | return FALSE; |
15e1c58a | 4328 | |
452216ab | 4329 | return TRUE; |
15e1c58a TG |
4330 | } |
4331 | ||
452216ab | 4332 | static bfd_boolean |
ab273af8 | 4333 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4334 | { |
4335 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 4336 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 4337 | |
47daa70f | 4338 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4339 | return FALSE; |
046b007d | 4340 | |
46d1c23b TG |
4341 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
4342 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
452216ab | 4343 | return TRUE; |
046b007d TG |
4344 | } |
4345 | ||
452216ab | 4346 | static bfd_boolean |
ab273af8 | 4347 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4348 | { |
4349 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 4350 | struct mach_o_str_command_external raw; |
046b007d TG |
4351 | unsigned long off; |
4352 | ||
47daa70f | 4353 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4354 | return FALSE; |
046b007d | 4355 | |
46d1c23b | 4356 | off = bfd_get_32 (abfd, raw.str); |
046b007d TG |
4357 | cmd->stroff = command->offset + off; |
4358 | cmd->str_len = command->len - off; | |
4359 | cmd->str = bfd_alloc (abfd, cmd->str_len); | |
4360 | if (cmd->str == NULL) | |
452216ab | 4361 | return FALSE; |
046b007d | 4362 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 |
91d6fa6a | 4363 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
452216ab TG |
4364 | return FALSE; |
4365 | return TRUE; | |
046b007d TG |
4366 | } |
4367 | ||
c9ffd2ea TG |
4368 | static unsigned char * |
4369 | bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size) | |
4370 | { | |
4371 | unsigned char *buf; | |
4372 | ||
4373 | buf = bfd_alloc (abfd, size); | |
4374 | if (buf == NULL) | |
4375 | return NULL; | |
4376 | if (bfd_seek (abfd, off, SEEK_SET) != 0 | |
4377 | || bfd_bread (buf, size, abfd) != size) | |
4378 | return NULL; | |
4379 | return buf; | |
4380 | } | |
4381 | ||
4382 | static bfd_boolean | |
4383 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd) | |
4384 | { | |
4385 | /* Read rebase content. */ | |
4386 | if (cmd->rebase_content == NULL && cmd->rebase_size != 0) | |
4387 | { | |
4388 | cmd->rebase_content = | |
4389 | bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size); | |
4390 | if (cmd->rebase_content == NULL) | |
4391 | return FALSE; | |
4392 | } | |
4393 | ||
4394 | /* Read bind content. */ | |
4395 | if (cmd->bind_content == NULL && cmd->bind_size != 0) | |
4396 | { | |
4397 | cmd->bind_content = | |
4398 | bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size); | |
4399 | if (cmd->bind_content == NULL) | |
4400 | return FALSE; | |
4401 | } | |
4402 | ||
4403 | /* Read weak bind content. */ | |
4404 | if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0) | |
4405 | { | |
4406 | cmd->weak_bind_content = bfd_mach_o_alloc_and_read | |
4407 | (abfd, cmd->weak_bind_off, cmd->weak_bind_size); | |
4408 | if (cmd->weak_bind_content == NULL) | |
4409 | return FALSE; | |
4410 | } | |
4411 | ||
4412 | /* Read lazy bind content. */ | |
4413 | if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0) | |
4414 | { | |
4415 | cmd->lazy_bind_content = bfd_mach_o_alloc_and_read | |
4416 | (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size); | |
4417 | if (cmd->lazy_bind_content == NULL) | |
4418 | return FALSE; | |
4419 | } | |
4420 | ||
4421 | /* Read export content. */ | |
4422 | if (cmd->export_content == NULL && cmd->export_size != 0) | |
4423 | { | |
4424 | cmd->export_content = bfd_mach_o_alloc_and_read | |
4425 | (abfd, cmd->export_off, cmd->export_size); | |
4426 | if (cmd->export_content == NULL) | |
4427 | return FALSE; | |
4428 | } | |
4429 | ||
4430 | return TRUE; | |
4431 | } | |
4432 | ||
452216ab | 4433 | static bfd_boolean |
ab273af8 | 4434 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
4435 | { |
4436 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 4437 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 4438 | |
47daa70f | 4439 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4440 | return FALSE; |
ad86f1fb | 4441 | |
46d1c23b TG |
4442 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
4443 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
c9ffd2ea | 4444 | cmd->rebase_content = NULL; |
46d1c23b TG |
4445 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); |
4446 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
c9ffd2ea | 4447 | cmd->bind_content = NULL; |
46d1c23b TG |
4448 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); |
4449 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
c9ffd2ea | 4450 | cmd->weak_bind_content = NULL; |
46d1c23b TG |
4451 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); |
4452 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
c9ffd2ea | 4453 | cmd->lazy_bind_content = NULL; |
46d1c23b TG |
4454 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); |
4455 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
c9ffd2ea | 4456 | cmd->export_content = NULL; |
452216ab | 4457 | return TRUE; |
ad86f1fb TG |
4458 | } |
4459 | ||
edbdea0e TG |
4460 | static bfd_boolean |
4461 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
4462 | { | |
4463 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
4464 | struct mach_o_version_min_command_external raw; | |
4465 | unsigned int ver; | |
4466 | ||
47daa70f | 4467 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
edbdea0e TG |
4468 | return FALSE; |
4469 | ||
4470 | ver = bfd_get_32 (abfd, raw.version); | |
4471 | cmd->rel = ver >> 16; | |
4472 | cmd->maj = ver >> 8; | |
4473 | cmd->min = ver; | |
4474 | cmd->reserved = bfd_get_32 (abfd, raw.reserved); | |
4475 | return TRUE; | |
4476 | } | |
4477 | ||
fc55a902 TG |
4478 | static bfd_boolean |
4479 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) | |
4480 | { | |
4481 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4482 | struct mach_o_encryption_info_command_external raw; | |
4483 | ||
47daa70f TG |
4484 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4485 | return FALSE; | |
4486 | ||
4487 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4488 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4489 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4490 | return TRUE; | |
4491 | } | |
4492 | ||
4493 | static bfd_boolean | |
4494 | bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command) | |
4495 | { | |
4496 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4497 | struct mach_o_encryption_info_64_command_external raw; | |
4498 | ||
4499 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
fc55a902 TG |
4500 | return FALSE; |
4501 | ||
4502 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4503 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4504 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4505 | return TRUE; | |
4506 | } | |
4507 | ||
1778ad74 TG |
4508 | static bfd_boolean |
4509 | bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command) | |
4510 | { | |
4511 | bfd_mach_o_main_command *cmd = &command->command.main; | |
4512 | struct mach_o_entry_point_command_external raw; | |
4513 | ||
47daa70f | 4514 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4515 | return FALSE; |
4516 | ||
4517 | cmd->entryoff = bfd_get_64 (abfd, raw.entryoff); | |
4518 | cmd->stacksize = bfd_get_64 (abfd, raw.stacksize); | |
4519 | return TRUE; | |
4520 | } | |
4521 | ||
4522 | static bfd_boolean | |
4523 | bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command) | |
4524 | { | |
4525 | bfd_mach_o_source_version_command *cmd = &command->command.source_version; | |
4526 | struct mach_o_source_version_command_external raw; | |
4527 | bfd_uint64_t ver; | |
4528 | ||
47daa70f | 4529 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4530 | return FALSE; |
4531 | ||
4532 | ver = bfd_get_64 (abfd, raw.version); | |
4533 | /* Note: we use a serie of shift to avoid shift > 32 (for which gcc | |
4534 | generates warnings) in case of the host doesn't support 64 bit | |
4535 | integers. */ | |
4536 | cmd->e = ver & 0x3ff; | |
4537 | ver >>= 10; | |
4538 | cmd->d = ver & 0x3ff; | |
4539 | ver >>= 10; | |
4540 | cmd->c = ver & 0x3ff; | |
4541 | ver >>= 10; | |
4542 | cmd->b = ver & 0x3ff; | |
4543 | ver >>= 10; | |
4544 | cmd->a = ver & 0xffffff; | |
4545 | return TRUE; | |
4546 | } | |
4547 | ||
452216ab | 4548 | static bfd_boolean |
ab273af8 | 4549 | bfd_mach_o_read_segment (bfd *abfd, |
07d6d2b8 AM |
4550 | bfd_mach_o_load_command *command, |
4551 | unsigned int wide) | |
3af9a47b | 4552 | { |
3af9a47b NC |
4553 | bfd_mach_o_segment_command *seg = &command->command.segment; |
4554 | unsigned long i; | |
a95a4550 | 4555 | |
1e8a024a TG |
4556 | if (wide) |
4557 | { | |
46d1c23b TG |
4558 | struct mach_o_segment_command_64_external raw; |
4559 | ||
1e8a024a | 4560 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 4561 | |
47daa70f | 4562 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4563 | return FALSE; |
3af9a47b | 4564 | |
46d1c23b | 4565 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4566 | seg->segname[16] = '\0'; |
1e8a024a | 4567 | |
46d1c23b TG |
4568 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
4569 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
4570 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
4571 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
4572 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4573 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4574 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4575 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
4576 | } |
4577 | else | |
4578 | { | |
46d1c23b TG |
4579 | struct mach_o_segment_command_32_external raw; |
4580 | ||
1e8a024a TG |
4581 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
4582 | ||
47daa70f | 4583 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4584 | return FALSE; |
1e8a024a | 4585 | |
46d1c23b | 4586 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4587 | seg->segname[16] = '\0'; |
1e8a024a | 4588 | |
46d1c23b TG |
4589 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
4590 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
4591 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
4592 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
4593 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4594 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4595 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4596 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 4597 | } |
9d4b6009 TG |
4598 | seg->sect_head = NULL; |
4599 | seg->sect_tail = NULL; | |
3af9a47b | 4600 | |
f1bde64c | 4601 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 4602 | { |
f1bde64c | 4603 | asection *sec; |
a95a4550 | 4604 | |
47daa70f | 4605 | sec = bfd_mach_o_read_section (abfd, seg->initprot, wide); |
f1bde64c | 4606 | if (sec == NULL) |
07d6d2b8 | 4607 | return FALSE; |
f1bde64c | 4608 | |
c9ffd2ea TG |
4609 | bfd_mach_o_append_section_to_segment |
4610 | (seg, bfd_mach_o_get_mach_o_section (sec)); | |
3af9a47b NC |
4611 | } |
4612 | ||
452216ab | 4613 | return TRUE; |
3af9a47b NC |
4614 | } |
4615 | ||
452216ab | 4616 | static bfd_boolean |
ab273af8 | 4617 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4618 | { |
ab273af8 | 4619 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
4620 | } |
4621 | ||
452216ab | 4622 | static bfd_boolean |
ab273af8 | 4623 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4624 | { |
ab273af8 | 4625 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
4626 | } |
4627 | ||
452216ab | 4628 | static bfd_boolean |
ab273af8 | 4629 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4630 | { |
47daa70f | 4631 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
46d1c23b TG |
4632 | struct mach_o_load_command_external raw; |
4633 | unsigned int cmd; | |
3af9a47b | 4634 | |
046b007d | 4635 | /* Read command type and length. */ |
47daa70f | 4636 | if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0 |
46d1c23b | 4637 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
452216ab | 4638 | return FALSE; |
3af9a47b | 4639 | |
46d1c23b TG |
4640 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
4641 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; | |
4642 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; | |
4643 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3af9a47b NC |
4644 | |
4645 | switch (command->type) | |
4646 | { | |
4647 | case BFD_MACH_O_LC_SEGMENT: | |
452216ab TG |
4648 | if (!bfd_mach_o_read_segment_32 (abfd, command)) |
4649 | return FALSE; | |
1e8a024a TG |
4650 | break; |
4651 | case BFD_MACH_O_LC_SEGMENT_64: | |
452216ab TG |
4652 | if (!bfd_mach_o_read_segment_64 (abfd, command)) |
4653 | return FALSE; | |
3af9a47b NC |
4654 | break; |
4655 | case BFD_MACH_O_LC_SYMTAB: | |
452216ab TG |
4656 | if (!bfd_mach_o_read_symtab (abfd, command)) |
4657 | return FALSE; | |
3af9a47b NC |
4658 | break; |
4659 | case BFD_MACH_O_LC_SYMSEG: | |
4660 | break; | |
4661 | case BFD_MACH_O_LC_THREAD: | |
4662 | case BFD_MACH_O_LC_UNIXTHREAD: | |
452216ab TG |
4663 | if (!bfd_mach_o_read_thread (abfd, command)) |
4664 | return FALSE; | |
3af9a47b NC |
4665 | break; |
4666 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
4667 | case BFD_MACH_O_LC_ID_DYLINKER: | |
10be66a4 | 4668 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
452216ab TG |
4669 | if (!bfd_mach_o_read_dylinker (abfd, command)) |
4670 | return FALSE; | |
3af9a47b NC |
4671 | break; |
4672 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4673 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
3af9a47b NC |
4674 | case BFD_MACH_O_LC_ID_DYLIB: |
4675 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 4676 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4677 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
452216ab TG |
4678 | if (!bfd_mach_o_read_dylib (abfd, command)) |
4679 | return FALSE; | |
3af9a47b NC |
4680 | break; |
4681 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
452216ab TG |
4682 | if (!bfd_mach_o_read_prebound_dylib (abfd, command)) |
4683 | return FALSE; | |
3af9a47b NC |
4684 | break; |
4685 | case BFD_MACH_O_LC_LOADFVMLIB: | |
4686 | case BFD_MACH_O_LC_IDFVMLIB: | |
452216ab TG |
4687 | if (!bfd_mach_o_read_fvmlib (abfd, command)) |
4688 | return FALSE; | |
9f4a5bd1 | 4689 | break; |
3af9a47b NC |
4690 | case BFD_MACH_O_LC_IDENT: |
4691 | case BFD_MACH_O_LC_FVMFILE: | |
4692 | case BFD_MACH_O_LC_PREPAGE: | |
4693 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 4694 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 4695 | break; |
3af9a47b | 4696 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
4697 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
4698 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
4699 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 4700 | case BFD_MACH_O_LC_RPATH: |
452216ab | 4701 | if (!bfd_mach_o_read_str (abfd, command)) |
07d6d2b8 | 4702 | return FALSE; |
3af9a47b NC |
4703 | break; |
4704 | case BFD_MACH_O_LC_DYSYMTAB: | |
452216ab TG |
4705 | if (!bfd_mach_o_read_dysymtab (abfd, command)) |
4706 | return FALSE; | |
3af9a47b | 4707 | break; |
3af9a47b | 4708 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
452216ab TG |
4709 | if (!bfd_mach_o_read_prebind_cksum (abfd, command)) |
4710 | return FALSE; | |
7a79c514 TG |
4711 | break; |
4712 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
452216ab TG |
4713 | if (!bfd_mach_o_read_twolevel_hints (abfd, command)) |
4714 | return FALSE; | |
3af9a47b | 4715 | break; |
15e1c58a | 4716 | case BFD_MACH_O_LC_UUID: |
452216ab TG |
4717 | if (!bfd_mach_o_read_uuid (abfd, command)) |
4718 | return FALSE; | |
15e1c58a TG |
4719 | break; |
4720 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 4721 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 4722 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
1778ad74 TG |
4723 | case BFD_MACH_O_LC_DATA_IN_CODE: |
4724 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: | |
47daa70f | 4725 | case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT: |
452216ab TG |
4726 | if (!bfd_mach_o_read_linkedit (abfd, command)) |
4727 | return FALSE; | |
15e1c58a | 4728 | break; |
fc55a902 TG |
4729 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
4730 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
452216ab | 4731 | return FALSE; |
fc55a902 | 4732 | break; |
47daa70f TG |
4733 | case BFD_MACH_O_LC_ENCRYPTION_INFO_64: |
4734 | if (!bfd_mach_o_read_encryption_info_64 (abfd, command)) | |
4735 | return FALSE; | |
4736 | break; | |
ad86f1fb | 4737 | case BFD_MACH_O_LC_DYLD_INFO: |
452216ab TG |
4738 | if (!bfd_mach_o_read_dyld_info (abfd, command)) |
4739 | return FALSE; | |
ad86f1fb | 4740 | break; |
edbdea0e TG |
4741 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
4742 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
47daa70f | 4743 | case BFD_MACH_O_LC_VERSION_MIN_WATCHOS: |
edbdea0e | 4744 | if (!bfd_mach_o_read_version_min (abfd, command)) |
452216ab | 4745 | return FALSE; |
edbdea0e | 4746 | break; |
1778ad74 TG |
4747 | case BFD_MACH_O_LC_MAIN: |
4748 | if (!bfd_mach_o_read_main (abfd, command)) | |
452216ab | 4749 | return FALSE; |
1778ad74 TG |
4750 | break; |
4751 | case BFD_MACH_O_LC_SOURCE_VERSION: | |
4752 | if (!bfd_mach_o_read_source_version (abfd, command)) | |
452216ab | 4753 | return FALSE; |
1778ad74 | 4754 | break; |
3af9a47b | 4755 | default: |
86eafac0 | 4756 | command->len = 0; |
871b3ab2 | 4757 | _bfd_error_handler (_("%pB: unknown load command %#x"), |
d42c267e | 4758 | abfd, command->type); |
86eafac0 | 4759 | return FALSE; |
3af9a47b NC |
4760 | } |
4761 | ||
452216ab | 4762 | return TRUE; |
3af9a47b NC |
4763 | } |
4764 | ||
4765 | static void | |
116c20d2 | 4766 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 4767 | { |
046b007d | 4768 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea | 4769 | bfd_mach_o_load_command *cmd; |
3af9a47b | 4770 | long csect = 0; |
a95a4550 | 4771 | |
15e1c58a | 4772 | /* Count total number of sections. */ |
3af9a47b NC |
4773 | mdata->nsects = 0; |
4774 | ||
c9ffd2ea | 4775 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4776 | { |
c9ffd2ea TG |
4777 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4778 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4779 | { |
c9ffd2ea | 4780 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
e84d6fca | 4781 | |
3af9a47b NC |
4782 | mdata->nsects += seg->nsects; |
4783 | } | |
4784 | } | |
4785 | ||
15e1c58a | 4786 | /* Allocate sections array. */ |
64d29018 NC |
4787 | mdata->sections = bfd_alloc2 (abfd, |
4788 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
15e1c58a TG |
4789 | |
4790 | /* Fill the array. */ | |
3af9a47b NC |
4791 | csect = 0; |
4792 | ||
c9ffd2ea | 4793 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4794 | { |
c9ffd2ea TG |
4795 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4796 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4797 | { |
c9ffd2ea | 4798 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
07d6d2b8 | 4799 | bfd_mach_o_section *sec; |
3af9a47b NC |
4800 | |
4801 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); | |
4802 | ||
07d6d2b8 | 4803 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
f1bde64c | 4804 | mdata->sections[csect++] = sec; |
3af9a47b NC |
4805 | } |
4806 | } | |
4807 | } | |
4808 | ||
afbb9e17 | 4809 | static bfd_boolean |
116c20d2 | 4810 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 4811 | { |
046b007d | 4812 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
4813 | bfd_mach_o_thread_command *thr = NULL; |
4814 | bfd_mach_o_load_command *cmd; | |
3af9a47b NC |
4815 | unsigned long i; |
4816 | ||
c9ffd2ea TG |
4817 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
4818 | if (cmd->type == BFD_MACH_O_LC_THREAD | |
4819 | || cmd->type == BFD_MACH_O_LC_UNIXTHREAD) | |
afbb9e17 | 4820 | { |
07d6d2b8 AM |
4821 | thr = &cmd->command.thread; |
4822 | break; | |
afbb9e17 | 4823 | } |
c9ffd2ea | 4824 | else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1) |
c0fd7846 | 4825 | { |
c9ffd2ea | 4826 | bfd_mach_o_main_command *main_cmd = &cmd->command.main; |
c0fd7846 | 4827 | bfd_mach_o_section *text_sect = mdata->sections[0]; |
c9ffd2ea | 4828 | |
c0fd7846 TG |
4829 | if (text_sect) |
4830 | { | |
4831 | abfd->start_address = main_cmd->entryoff | |
4832 | + (text_sect->addr - text_sect->offset); | |
4833 | return TRUE; | |
4834 | } | |
4835 | } | |
3af9a47b | 4836 | |
5ee43bc4 | 4837 | /* An object file has no start address, so do not fail if not found. */ |
c9ffd2ea | 4838 | if (thr == NULL) |
5ee43bc4 | 4839 | return TRUE; |
3af9a47b | 4840 | |
afbb9e17 | 4841 | /* FIXME: create a subtarget hook ? */ |
c9ffd2ea | 4842 | for (i = 0; i < thr->nflavours; i++) |
3af9a47b | 4843 | { |
a95a4550 | 4844 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
c9ffd2ea | 4845 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
4846 | { |
4847 | unsigned char buf[4]; | |
4848 | ||
c9ffd2ea | 4849 | if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0 |
07d6d2b8 | 4850 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 4851 | return FALSE; |
3af9a47b NC |
4852 | |
4853 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4854 | } | |
a95a4550 | 4855 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
c9ffd2ea | 4856 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3af9a47b NC |
4857 | { |
4858 | unsigned char buf[4]; | |
4859 | ||
c9ffd2ea | 4860 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
07d6d2b8 | 4861 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 4862 | return FALSE; |
3af9a47b NC |
4863 | |
4864 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4865 | } | |
1e8a024a | 4866 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
07d6d2b8 AM |
4867 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
4868 | { | |
4869 | unsigned char buf[8]; | |
1e8a024a | 4870 | |
07d6d2b8 AM |
4871 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
4872 | || bfd_bread (buf, 8, abfd) != 8) | |
4873 | return FALSE; | |
1e8a024a | 4874 | |
07d6d2b8 AM |
4875 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
4876 | } | |
1e8a024a | 4877 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) |
07d6d2b8 AM |
4878 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) |
4879 | { | |
4880 | unsigned char buf[8]; | |
1e8a024a | 4881 | |
07d6d2b8 AM |
4882 | if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
4883 | || bfd_bread (buf, 8, abfd) != 8) | |
4884 | return FALSE; | |
1e8a024a | 4885 | |
07d6d2b8 AM |
4886 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
4887 | } | |
3af9a47b NC |
4888 | } |
4889 | ||
afbb9e17 | 4890 | return TRUE; |
3af9a47b NC |
4891 | } |
4892 | ||
42fa0891 TG |
4893 | bfd_boolean |
4894 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
07d6d2b8 AM |
4895 | enum bfd_architecture arch, |
4896 | unsigned long machine) | |
42fa0891 TG |
4897 | { |
4898 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
4899 | ||
4900 | /* If this isn't the right architecture for this backend, and this | |
4901 | isn't the generic backend, fail. */ | |
4902 | if (arch != bed->arch | |
4903 | && arch != bfd_arch_unknown | |
4904 | && bed->arch != bfd_arch_unknown) | |
4905 | return FALSE; | |
4906 | ||
4907 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
4908 | } | |
4909 | ||
afbb9e17 | 4910 | static bfd_boolean |
116c20d2 NC |
4911 | bfd_mach_o_scan (bfd *abfd, |
4912 | bfd_mach_o_header *header, | |
4913 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
4914 | { |
4915 | unsigned int i; | |
3af9a47b NC |
4916 | enum bfd_architecture cputype; |
4917 | unsigned long cpusubtype; | |
1e8a024a TG |
4918 | unsigned int hdrsize; |
4919 | ||
c2f09c75 | 4920 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 4921 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 4922 | |
3af9a47b | 4923 | mdata->header = *header; |
3af9a47b | 4924 | |
154a1ee5 | 4925 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
4926 | switch (header->filetype) |
4927 | { | |
4928 | case BFD_MACH_O_MH_OBJECT: | |
4929 | abfd->flags |= HAS_RELOC; | |
4930 | break; | |
4931 | case BFD_MACH_O_MH_EXECUTE: | |
4932 | abfd->flags |= EXEC_P; | |
4933 | break; | |
4934 | case BFD_MACH_O_MH_DYLIB: | |
4935 | case BFD_MACH_O_MH_BUNDLE: | |
4936 | abfd->flags |= DYNAMIC; | |
4937 | break; | |
4938 | } | |
4939 | ||
3af9a47b NC |
4940 | abfd->tdata.mach_o_data = mdata; |
4941 | ||
e84d6fca AM |
4942 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
4943 | &cputype, &cpusubtype); | |
3af9a47b NC |
4944 | if (cputype == bfd_arch_unknown) |
4945 | { | |
4eca0228 | 4946 | _bfd_error_handler |
695344c0 | 4947 | /* xgettext:c-format */ |
07d6d2b8 AM |
4948 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), |
4949 | header->cputype, header->cpusubtype); | |
afbb9e17 | 4950 | return FALSE; |
3af9a47b NC |
4951 | } |
4952 | ||
4953 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 4954 | |
3af9a47b NC |
4955 | if (header->ncmds != 0) |
4956 | { | |
c9ffd2ea TG |
4957 | bfd_mach_o_load_command *cmd; |
4958 | ||
4959 | mdata->first_command = NULL; | |
4960 | mdata->last_command = NULL; | |
64d29018 NC |
4961 | |
4962 | cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command)); | |
c9ffd2ea | 4963 | if (cmd == NULL) |
afbb9e17 | 4964 | return FALSE; |
a95a4550 | 4965 | |
3af9a47b NC |
4966 | for (i = 0; i < header->ncmds; i++) |
4967 | { | |
c9ffd2ea TG |
4968 | bfd_mach_o_load_command *cur = &cmd[i]; |
4969 | ||
4970 | bfd_mach_o_append_command (abfd, cur); | |
3af9a47b NC |
4971 | |
4972 | if (i == 0) | |
1e8a024a | 4973 | cur->offset = hdrsize; |
3af9a47b NC |
4974 | else |
4975 | { | |
c9ffd2ea | 4976 | bfd_mach_o_load_command *prev = &cmd[i - 1]; |
3af9a47b NC |
4977 | cur->offset = prev->offset + prev->len; |
4978 | } | |
4979 | ||
452216ab | 4980 | if (!bfd_mach_o_read_command (abfd, cur)) |
afbb9e17 | 4981 | return FALSE; |
a95a4550 | 4982 | } |
3af9a47b NC |
4983 | } |
4984 | ||
c0fd7846 TG |
4985 | /* Sections should be flatten before scanning start address. */ |
4986 | bfd_mach_o_flatten_sections (abfd); | |
4987 | if (!bfd_mach_o_scan_start_address (abfd)) | |
afbb9e17 | 4988 | return FALSE; |
3af9a47b | 4989 | |
afbb9e17 | 4990 | return TRUE; |
3af9a47b NC |
4991 | } |
4992 | ||
b34976b6 | 4993 | bfd_boolean |
154a1ee5 | 4994 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
4995 | { |
4996 | bfd_mach_o_data_struct *mdata = NULL; | |
4997 | ||
b30a5d18 | 4998 | mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 4999 | if (mdata == NULL) |
b34976b6 | 5000 | return FALSE; |
3af9a47b NC |
5001 | abfd->tdata.mach_o_data = mdata; |
5002 | ||
5003 | mdata->header.magic = 0; | |
5004 | mdata->header.cputype = 0; | |
5005 | mdata->header.cpusubtype = 0; | |
5006 | mdata->header.filetype = 0; | |
5007 | mdata->header.ncmds = 0; | |
5008 | mdata->header.sizeofcmds = 0; | |
5009 | mdata->header.flags = 0; | |
5010 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
c9ffd2ea TG |
5011 | mdata->first_command = NULL; |
5012 | mdata->last_command = NULL; | |
3af9a47b NC |
5013 | mdata->nsects = 0; |
5014 | mdata->sections = NULL; | |
4434114c | 5015 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 5016 | |
b34976b6 | 5017 | return TRUE; |
3af9a47b NC |
5018 | } |
5019 | ||
42fa0891 TG |
5020 | static bfd_boolean |
5021 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
5022 | { | |
5023 | bfd_mach_o_data_struct *mdata; | |
5024 | ||
5025 | if (!bfd_mach_o_mkobject_init (abfd)) | |
5026 | return FALSE; | |
5027 | ||
5028 | mdata = bfd_mach_o_get_data (abfd); | |
5029 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
5030 | mdata->header.cputype = 0; | |
5031 | mdata->header.cpusubtype = 0; | |
5032 | mdata->header.byteorder = abfd->xvec->byteorder; | |
5033 | mdata->header.version = 1; | |
5034 | ||
5035 | return TRUE; | |
5036 | } | |
5037 | ||
3af9a47b | 5038 | const bfd_target * |
154a1ee5 | 5039 | bfd_mach_o_header_p (bfd *abfd, |
47daa70f | 5040 | file_ptr hdr_off, |
07d6d2b8 AM |
5041 | bfd_mach_o_filetype filetype, |
5042 | bfd_mach_o_cpu_type cputype) | |
3af9a47b NC |
5043 | { |
5044 | bfd_mach_o_header header; | |
c9ba0c87 | 5045 | bfd_mach_o_data_struct *mdata; |
3af9a47b | 5046 | |
47daa70f | 5047 | if (!bfd_mach_o_read_header (abfd, hdr_off, &header)) |
e84d6fca | 5048 | goto wrong; |
3af9a47b | 5049 | |
e84d6fca AM |
5050 | if (! (header.byteorder == BFD_ENDIAN_BIG |
5051 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 5052 | { |
d42c267e AM |
5053 | _bfd_error_handler (_("unknown header byte-order value %#x"), |
5054 | header.byteorder); | |
e84d6fca | 5055 | goto wrong; |
3af9a47b NC |
5056 | } |
5057 | ||
e84d6fca AM |
5058 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
5059 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
5060 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
5061 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
5062 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
5063 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
5064 | goto wrong; | |
3af9a47b | 5065 | |
154a1ee5 TG |
5066 | /* Check cputype and filetype. |
5067 | In case of wildcard, do not accept magics that are handled by existing | |
5068 | targets. */ | |
5069 | if (cputype) | |
5070 | { | |
5071 | if (header.cputype != cputype) | |
07d6d2b8 | 5072 | goto wrong; |
154a1ee5 | 5073 | } |
26954155 TG |
5074 | else |
5075 | { | |
5076 | #ifndef BFD64 | |
5077 | /* Do not recognize 64 architectures if not configured for 64bit targets. | |
5078 | This could happen only for generic targets. */ | |
5079 | if (mach_o_wide_p (&header)) | |
5080 | goto wrong; | |
5081 | #endif | |
5082 | } | |
b22161d6 | 5083 | |
154a1ee5 TG |
5084 | if (filetype) |
5085 | { | |
5086 | if (header.filetype != filetype) | |
07d6d2b8 | 5087 | goto wrong; |
154a1ee5 TG |
5088 | } |
5089 | else | |
5090 | { | |
5091 | switch (header.filetype) | |
07d6d2b8 AM |
5092 | { |
5093 | case BFD_MACH_O_MH_CORE: | |
5094 | /* Handled by core_p */ | |
5095 | goto wrong; | |
5096 | default: | |
5097 | break; | |
5098 | } | |
154a1ee5 TG |
5099 | } |
5100 | ||
c9ba0c87 AM |
5101 | mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata)); |
5102 | if (mdata == NULL) | |
e84d6fca | 5103 | goto fail; |
47daa70f | 5104 | mdata->hdr_offset = hdr_off; |
3af9a47b | 5105 | |
c9ba0c87 | 5106 | if (!bfd_mach_o_scan (abfd, &header, mdata)) |
e84d6fca | 5107 | goto wrong; |
a95a4550 | 5108 | |
3af9a47b | 5109 | return abfd->xvec; |
e84d6fca AM |
5110 | |
5111 | wrong: | |
5112 | bfd_set_error (bfd_error_wrong_format); | |
5113 | ||
5114 | fail: | |
e84d6fca | 5115 | return NULL; |
3af9a47b NC |
5116 | } |
5117 | ||
154a1ee5 TG |
5118 | static const bfd_target * |
5119 | bfd_mach_o_gen_object_p (bfd *abfd) | |
3af9a47b | 5120 | { |
47daa70f | 5121 | return bfd_mach_o_header_p (abfd, 0, 0, 0); |
154a1ee5 | 5122 | } |
e84d6fca | 5123 | |
154a1ee5 TG |
5124 | static const bfd_target * |
5125 | bfd_mach_o_gen_core_p (bfd *abfd) | |
5126 | { | |
47daa70f | 5127 | return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0); |
3af9a47b NC |
5128 | } |
5129 | ||
3cc27770 TG |
5130 | /* Return the base address of ABFD, ie the address at which the image is |
5131 | mapped. The possible initial pagezero is ignored. */ | |
5132 | ||
5133 | bfd_vma | |
5134 | bfd_mach_o_get_base_address (bfd *abfd) | |
5135 | { | |
5136 | bfd_mach_o_data_struct *mdata; | |
c9ffd2ea | 5137 | bfd_mach_o_load_command *cmd; |
3cc27770 TG |
5138 | |
5139 | /* Check for Mach-O. */ | |
5140 | if (!bfd_mach_o_valid (abfd)) | |
5141 | return 0; | |
5142 | mdata = bfd_mach_o_get_data (abfd); | |
5143 | ||
c9ffd2ea | 5144 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3cc27770 | 5145 | { |
3cc27770 TG |
5146 | if ((cmd->type == BFD_MACH_O_LC_SEGMENT |
5147 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64)) | |
5148 | { | |
5149 | struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment; | |
5150 | ||
5151 | if (segcmd->initprot != 0) | |
5152 | return segcmd->vmaddr; | |
5153 | } | |
5154 | } | |
5155 | return 0; | |
5156 | } | |
5157 | ||
3af9a47b NC |
5158 | typedef struct mach_o_fat_archentry |
5159 | { | |
5160 | unsigned long cputype; | |
5161 | unsigned long cpusubtype; | |
5162 | unsigned long offset; | |
5163 | unsigned long size; | |
5164 | unsigned long align; | |
3af9a47b NC |
5165 | } mach_o_fat_archentry; |
5166 | ||
5167 | typedef struct mach_o_fat_data_struct | |
5168 | { | |
5169 | unsigned long magic; | |
5170 | unsigned long nfat_arch; | |
5171 | mach_o_fat_archentry *archentries; | |
5172 | } mach_o_fat_data_struct; | |
5173 | ||
5174 | const bfd_target * | |
47daa70f | 5175 | bfd_mach_o_fat_archive_p (bfd *abfd) |
3af9a47b | 5176 | { |
e84d6fca | 5177 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 5178 | struct mach_o_fat_header_external hdr; |
3af9a47b NC |
5179 | unsigned long i; |
5180 | ||
c2f09c75 | 5181 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 5182 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 5183 | goto error; |
3af9a47b | 5184 | |
116c20d2 | 5185 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 5186 | if (adata == NULL) |
e84d6fca | 5187 | goto error; |
a95a4550 | 5188 | |
46d1c23b TG |
5189 | adata->magic = bfd_getb32 (hdr.magic); |
5190 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 5191 | if (adata->magic != 0xcafebabe) |
e84d6fca | 5192 | goto error; |
27cc28f9 AS |
5193 | /* Avoid matching Java bytecode files, which have the same magic number. |
5194 | In the Java bytecode file format this field contains the JVM version, | |
5195 | which starts at 43.0. */ | |
5196 | if (adata->nfat_arch > 30) | |
5197 | goto error; | |
3af9a47b | 5198 | |
c2f09c75 | 5199 | adata->archentries = |
64d29018 | 5200 | bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry)); |
3af9a47b | 5201 | if (adata->archentries == NULL) |
e84d6fca | 5202 | goto error; |
3af9a47b NC |
5203 | |
5204 | for (i = 0; i < adata->nfat_arch; i++) | |
5205 | { | |
46d1c23b TG |
5206 | struct mach_o_fat_arch_external arch; |
5207 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 5208 | goto error; |
46d1c23b TG |
5209 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
5210 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
5211 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
5212 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
5213 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
5214 | } |
5215 | ||
5216 | abfd->tdata.mach_o_fat_data = adata; | |
64d29018 | 5217 | |
3af9a47b | 5218 | return abfd->xvec; |
e84d6fca AM |
5219 | |
5220 | error: | |
5221 | if (adata != NULL) | |
5222 | bfd_release (abfd, adata); | |
5223 | bfd_set_error (bfd_error_wrong_format); | |
5224 | return NULL; | |
3af9a47b NC |
5225 | } |
5226 | ||
a4e241ca TG |
5227 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
5228 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
5229 | Set arelt_data and origin fields too. */ | |
5230 | ||
5231 | static void | |
5232 | bfd_mach_o_fat_member_init (bfd *abfd, | |
07d6d2b8 AM |
5233 | enum bfd_architecture arch_type, |
5234 | unsigned long arch_subtype, | |
5235 | mach_o_fat_archentry *entry) | |
a4e241ca TG |
5236 | { |
5237 | struct areltdata *areltdata; | |
5238 | /* Create the member filename. Use ARCH_NAME. */ | |
5239 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
5240 | ||
5241 | if (ap) | |
5242 | { | |
5243 | /* Use the architecture name if known. */ | |
1be5090b | 5244 | abfd->filename = xstrdup (ap->printable_name); |
a4e241ca TG |
5245 | } |
5246 | else | |
5247 | { | |
5248 | /* Forge a uniq id. */ | |
5249 | const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1; | |
1be5090b | 5250 | char *name = xmalloc (namelen); |
a4e241ca | 5251 | snprintf (name, namelen, "0x%lx-0x%lx", |
07d6d2b8 | 5252 | entry->cputype, entry->cpusubtype); |
a4e241ca TG |
5253 | abfd->filename = name; |
5254 | } | |
5255 | ||
06e7acd7 | 5256 | areltdata = bfd_zmalloc (sizeof (struct areltdata)); |
a4e241ca TG |
5257 | areltdata->parsed_size = entry->size; |
5258 | abfd->arelt_data = areltdata; | |
5259 | abfd->iostream = NULL; | |
5260 | abfd->origin = entry->offset; | |
5261 | } | |
5262 | ||
3af9a47b | 5263 | bfd * |
47daa70f | 5264 | bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 5265 | { |
e84d6fca | 5266 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
5267 | mach_o_fat_archentry *entry = NULL; |
5268 | unsigned long i; | |
15e1c58a | 5269 | bfd *nbfd; |
15e1c58a TG |
5270 | enum bfd_architecture arch_type; |
5271 | unsigned long arch_subtype; | |
3af9a47b | 5272 | |
e84d6fca | 5273 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
5274 | BFD_ASSERT (adata != NULL); |
5275 | ||
5276 | /* Find index of previous entry. */ | |
5277 | if (prev == NULL) | |
a4e241ca TG |
5278 | { |
5279 | /* Start at first one. */ | |
5280 | i = 0; | |
5281 | } | |
3af9a47b NC |
5282 | else |
5283 | { | |
a4e241ca | 5284 | /* Find index of PREV. */ |
3af9a47b NC |
5285 | for (i = 0; i < adata->nfat_arch; i++) |
5286 | { | |
15e1c58a | 5287 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
5288 | break; |
5289 | } | |
5290 | ||
5291 | if (i == adata->nfat_arch) | |
5292 | { | |
5293 | /* Not found. */ | |
5294 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 5295 | return NULL; |
3af9a47b | 5296 | } |
a4e241ca TG |
5297 | |
5298 | /* Get next entry. */ | |
5299 | i++; | |
5300 | } | |
a95a4550 | 5301 | |
3af9a47b NC |
5302 | if (i >= adata->nfat_arch) |
5303 | { | |
5304 | bfd_set_error (bfd_error_no_more_archived_files); | |
5305 | return NULL; | |
5306 | } | |
5307 | ||
5308 | entry = &adata->archentries[i]; | |
15e1c58a TG |
5309 | nbfd = _bfd_new_bfd_contained_in (archive); |
5310 | if (nbfd == NULL) | |
5311 | return NULL; | |
5312 | ||
15e1c58a TG |
5313 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
5314 | &arch_type, &arch_subtype); | |
846b9259 | 5315 | |
a4e241ca TG |
5316 | bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry); |
5317 | ||
846b9259 | 5318 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 5319 | |
15e1c58a | 5320 | return nbfd; |
3af9a47b NC |
5321 | } |
5322 | ||
15bbba8d TG |
5323 | /* Analogous to stat call. */ |
5324 | ||
5325 | static int | |
5326 | bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf) | |
5327 | { | |
5328 | if (abfd->arelt_data == NULL) | |
5329 | { | |
5330 | bfd_set_error (bfd_error_invalid_operation); | |
5331 | return -1; | |
5332 | } | |
5333 | ||
5334 | buf->st_mtime = 0; | |
5335 | buf->st_uid = 0; | |
5336 | buf->st_gid = 0; | |
5337 | buf->st_mode = 0644; | |
5338 | buf->st_size = arelt_size (abfd); | |
5339 | ||
5340 | return 0; | |
5341 | } | |
5342 | ||
846b9259 TG |
5343 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
5344 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
5345 | and ARCH, returns it. | |
5346 | In other case, returns NULL. | |
5347 | This function allows transparent uses of fat images. */ | |
a4e241ca | 5348 | |
846b9259 TG |
5349 | bfd * |
5350 | bfd_mach_o_fat_extract (bfd *abfd, | |
5351 | bfd_format format, | |
5352 | const bfd_arch_info_type *arch) | |
5353 | { | |
5354 | bfd *res; | |
5355 | mach_o_fat_data_struct *adata; | |
5356 | unsigned int i; | |
5357 | ||
5358 | if (bfd_check_format (abfd, format)) | |
5359 | { | |
5360 | if (bfd_get_arch_info (abfd) == arch) | |
5361 | return abfd; | |
5362 | return NULL; | |
5363 | } | |
5364 | if (!bfd_check_format (abfd, bfd_archive) | |
5365 | || abfd->xvec != &mach_o_fat_vec) | |
5366 | return NULL; | |
c2f09c75 | 5367 | |
846b9259 TG |
5368 | /* This is a Mach-O fat image. */ |
5369 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
5370 | BFD_ASSERT (adata != NULL); | |
5371 | ||
5372 | for (i = 0; i < adata->nfat_arch; i++) | |
5373 | { | |
5374 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
5375 | enum bfd_architecture cpu_type; | |
5376 | unsigned long cpu_subtype; | |
5377 | ||
5378 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
5379 | &cpu_type, &cpu_subtype); | |
5380 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
5381 | continue; | |
5382 | ||
5383 | /* The architecture is found. */ | |
5384 | res = _bfd_new_bfd_contained_in (abfd); | |
5385 | if (res == NULL) | |
5386 | return NULL; | |
5387 | ||
a4e241ca | 5388 | bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e); |
846b9259 TG |
5389 | |
5390 | if (bfd_check_format (res, format)) | |
5391 | { | |
5392 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
5393 | return res; | |
5394 | } | |
5395 | bfd_close (res); | |
5396 | return NULL; | |
5397 | } | |
5398 | ||
5399 | return NULL; | |
5400 | } | |
5401 | ||
3af9a47b | 5402 | int |
116c20d2 NC |
5403 | bfd_mach_o_lookup_command (bfd *abfd, |
5404 | bfd_mach_o_load_command_type type, | |
5405 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 5406 | { |
c9ffd2ea TG |
5407 | struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
5408 | struct bfd_mach_o_load_command *cmd; | |
5409 | unsigned int num; | |
3af9a47b | 5410 | |
c9ffd2ea | 5411 | BFD_ASSERT (mdata != NULL); |
3af9a47b NC |
5412 | BFD_ASSERT (mcommand != NULL); |
5413 | ||
5414 | num = 0; | |
c9ffd2ea | 5415 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5416 | { |
3af9a47b NC |
5417 | if (cmd->type != type) |
5418 | continue; | |
5419 | ||
5420 | if (num == 0) | |
c9ffd2ea | 5421 | *mcommand = cmd; |
3af9a47b NC |
5422 | num++; |
5423 | } | |
5424 | ||
3af9a47b NC |
5425 | return num; |
5426 | } | |
5427 | ||
5428 | unsigned long | |
116c20d2 | 5429 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
5430 | { |
5431 | switch (type) | |
5432 | { | |
5433 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
5434 | return 0x04000000; | |
3af9a47b NC |
5435 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
5436 | return 0xc0000000; | |
5437 | case BFD_MACH_O_CPU_TYPE_I386: | |
5438 | return 0xc0000000; | |
5439 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
5440 | return 0xf0000000; | |
3af9a47b | 5441 | case BFD_MACH_O_CPU_TYPE_HPPA: |
e84d6fca | 5442 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
5443 | default: |
5444 | return 0; | |
5445 | } | |
5446 | } | |
5447 | ||
ab76eeaf IS |
5448 | /* The following two tables should be kept, as far as possible, in order of |
5449 | most frequently used entries to optimize their use from gas. */ | |
5450 | ||
c5012cd8 | 5451 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
5452 | { |
5453 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 5454 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
5455 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
5456 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
5457 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
5458 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 5459 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 5460 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
5461 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
5462 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
5463 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
5464 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 5465 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
5466 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
5467 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 5468 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
5469 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
5470 | { NULL, 0} | |
5471 | }; | |
5472 | ||
c5012cd8 | 5473 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 5474 | { |
ab76eeaf IS |
5475 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
5476 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
5477 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
5478 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 5479 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
5480 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
5481 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
5482 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
5483 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 5484 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 5485 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
5486 | { NULL, 0} |
5487 | }; | |
5488 | ||
a4551119 | 5489 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
5490 | |
5491 | unsigned int | |
ab76eeaf | 5492 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 5493 | { |
afbb9e17 | 5494 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 5495 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
5496 | |
5497 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
5498 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
5499 | { |
5500 | /* We found it... does the target support it? */ | |
5501 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
5502 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
5503 | return x->val; /* OK. */ | |
5504 | else | |
5505 | break; /* Not supported. */ | |
5506 | } | |
a4551119 TG |
5507 | /* Maximum section ID = 0xff. */ |
5508 | return 256; | |
53d58d96 TG |
5509 | } |
5510 | ||
5511 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
5512 | ||
5513 | unsigned int | |
5514 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
5515 | { | |
afbb9e17 | 5516 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
5517 | |
5518 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
5519 | if (strcmp (x->name, name) == 0) | |
5520 | return x->val; | |
5521 | return (unsigned int)-1; | |
5522 | } | |
5523 | ||
3af9a47b | 5524 | int |
116c20d2 NC |
5525 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
5526 | unsigned char **rbuf, | |
5527 | unsigned int *rlen) | |
3af9a47b | 5528 | { |
046b007d | 5529 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 5530 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
c9ffd2ea | 5531 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5532 | |
c9ffd2ea | 5533 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5534 | { |
c9ffd2ea | 5535 | bfd_mach_o_segment_command *seg; |
3af9a47b | 5536 | |
c9ffd2ea | 5537 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) |
3af9a47b NC |
5538 | continue; |
5539 | ||
c9ffd2ea | 5540 | seg = &cmd->command.segment; |
3af9a47b NC |
5541 | |
5542 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
5543 | { | |
5544 | unsigned long start = seg->fileoff; | |
5545 | unsigned long end = seg->fileoff + seg->filesize; | |
5546 | unsigned char *buf = bfd_malloc (1024); | |
5547 | unsigned long size = 1024; | |
5548 | ||
5549 | for (;;) | |
5550 | { | |
5551 | bfd_size_type nread = 0; | |
5552 | unsigned long offset; | |
5553 | int found_nonnull = 0; | |
5554 | ||
5555 | if (size > (end - start)) | |
5556 | size = (end - start); | |
5557 | ||
515ef31d NC |
5558 | buf = bfd_realloc_or_free (buf, size); |
5559 | if (buf == NULL) | |
5560 | return -1; | |
c2f09c75 TG |
5561 | |
5562 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
07d6d2b8 AM |
5563 | { |
5564 | free (buf); | |
5565 | return -1; | |
5566 | } | |
c2f09c75 | 5567 | |
3af9a47b | 5568 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 5569 | |
3af9a47b | 5570 | if (nread != size) |
515ef31d NC |
5571 | { |
5572 | free (buf); | |
5573 | return -1; | |
5574 | } | |
a95a4550 | 5575 | |
3af9a47b NC |
5576 | for (offset = 4; offset <= size; offset += 4) |
5577 | { | |
e84d6fca | 5578 | unsigned long val; |
3af9a47b | 5579 | |
e84d6fca | 5580 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
5581 | if (! found_nonnull) |
5582 | { | |
5583 | if (val != 0) | |
5584 | found_nonnull = 1; | |
5585 | } | |
5586 | else if (val == 0x0) | |
5587 | { | |
e84d6fca AM |
5588 | unsigned long bottom; |
5589 | unsigned long top; | |
3af9a47b | 5590 | |
e84d6fca AM |
5591 | bottom = seg->fileoff + seg->filesize - offset; |
5592 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
5593 | *rbuf = bfd_malloc (top - bottom); |
5594 | *rlen = top - bottom; | |
5595 | ||
5596 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 5597 | free (buf); |
3af9a47b NC |
5598 | return 0; |
5599 | } | |
5600 | } | |
5601 | ||
5602 | if (size == (end - start)) | |
5603 | break; | |
5604 | ||
5605 | size *= 2; | |
5606 | } | |
515ef31d NC |
5607 | |
5608 | free (buf); | |
3af9a47b NC |
5609 | } |
5610 | } | |
5611 | ||
5612 | return -1; | |
5613 | } | |
5614 | ||
5615 | char * | |
116c20d2 | 5616 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
5617 | { |
5618 | unsigned char *buf = NULL; | |
5619 | unsigned int len = 0; | |
452216ab | 5620 | int ret; |
3af9a47b NC |
5621 | |
5622 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
5623 | if (ret < 0) | |
5624 | return NULL; | |
5625 | ||
f075ee0c | 5626 | return (char *) buf; |
3af9a47b NC |
5627 | } |
5628 | ||
5629 | int | |
116c20d2 | 5630 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
5631 | { |
5632 | return 0; | |
5633 | } | |
5634 | ||
2ca7691a TG |
5635 | static bfd_mach_o_uuid_command * |
5636 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
5637 | { | |
09fe2662 | 5638 | bfd_mach_o_load_command *uuid_cmd = NULL; |
2ca7691a | 5639 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); |
09fe2662 | 5640 | if (ncmd != 1 || uuid_cmd == NULL) |
2ca7691a TG |
5641 | return FALSE; |
5642 | return &uuid_cmd->command.uuid; | |
5643 | } | |
5644 | ||
5645 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
5646 | ||
5647 | static bfd_boolean | |
5648 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) | |
5649 | { | |
5650 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
5651 | ||
5652 | BFD_ASSERT (abfd); | |
5653 | BFD_ASSERT (uuid_cmd); | |
5654 | ||
5655 | if (!bfd_check_format (abfd, bfd_object)) | |
5656 | return FALSE; | |
5657 | ||
5658 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
5659 | || bfd_mach_o_get_data (abfd) == NULL | |
5660 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
5661 | return FALSE; | |
5662 | ||
5663 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5664 | if (dsym_uuid_cmd == NULL) | |
5665 | return FALSE; | |
5666 | ||
5667 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
07d6d2b8 | 5668 | sizeof (uuid_cmd->uuid)) != 0) |
2ca7691a TG |
5669 | return FALSE; |
5670 | ||
5671 | return TRUE; | |
5672 | } | |
5673 | ||
5674 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
5675 | The caller is responsible for closing the returned BFD object and | |
5676 | its my_archive if the returned BFD is in a fat dSYM. */ | |
5677 | ||
5678 | static bfd * | |
5679 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
07d6d2b8 AM |
5680 | const bfd_mach_o_uuid_command *uuid_cmd, |
5681 | const bfd_arch_info_type *arch) | |
2ca7691a TG |
5682 | { |
5683 | bfd *base_dsym_bfd, *dsym_bfd; | |
5684 | ||
5685 | BFD_ASSERT (uuid_cmd); | |
5686 | ||
5687 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
5688 | if (base_dsym_bfd == NULL) | |
5689 | return NULL; | |
5690 | ||
5691 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
5692 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
5693 | return dsym_bfd; | |
5694 | ||
5695 | bfd_close (dsym_bfd); | |
5696 | if (base_dsym_bfd != dsym_bfd) | |
5697 | bfd_close (base_dsym_bfd); | |
5698 | ||
5699 | return NULL; | |
5700 | } | |
5701 | ||
5702 | /* Return a BFD created from a dSYM file for ABFD. | |
5703 | The caller is responsible for closing the returned BFD object, its | |
5704 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
5705 | ||
5706 | static bfd * | |
5707 | bfd_mach_o_follow_dsym (bfd *abfd) | |
5708 | { | |
5709 | char *dsym_filename; | |
5710 | bfd_mach_o_uuid_command *uuid_cmd; | |
5711 | bfd *dsym_bfd, *base_bfd = abfd; | |
5712 | const char *base_basename; | |
5713 | ||
5714 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
5715 | return NULL; | |
5716 | ||
b0cffb47 | 5717 | if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive)) |
2ca7691a TG |
5718 | base_bfd = abfd->my_archive; |
5719 | /* BFD may have been opened from a stream. */ | |
5720 | if (base_bfd->filename == NULL) | |
5721 | { | |
5722 | bfd_set_error (bfd_error_invalid_operation); | |
5723 | return NULL; | |
5724 | } | |
5725 | base_basename = lbasename (base_bfd->filename); | |
5726 | ||
5727 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5728 | if (uuid_cmd == NULL) | |
5729 | return NULL; | |
5730 | ||
5731 | /* TODO: We assume the DWARF file has the same as the binary's. | |
5732 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
5733 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
5734 | */ | |
5735 | dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename) | |
07d6d2b8 AM |
5736 | + strlen (dsym_subdir) + 1 |
5737 | + strlen (base_basename) + 1); | |
2ca7691a | 5738 | sprintf (dsym_filename, "%s%s/%s", |
07d6d2b8 | 5739 | base_bfd->filename, dsym_subdir, base_basename); |
2ca7691a TG |
5740 | |
5741 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
07d6d2b8 | 5742 | bfd_get_arch_info (abfd)); |
2ca7691a TG |
5743 | if (dsym_bfd == NULL) |
5744 | free (dsym_filename); | |
5745 | ||
5746 | return dsym_bfd; | |
5747 | } | |
5748 | ||
d9071b0c TG |
5749 | bfd_boolean |
5750 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
d9071b0c | 5751 | asymbol **symbols, |
fb167eb2 | 5752 | asection *section, |
d9071b0c TG |
5753 | bfd_vma offset, |
5754 | const char **filename_ptr, | |
5755 | const char **functionname_ptr, | |
fb167eb2 AM |
5756 | unsigned int *line_ptr, |
5757 | unsigned int *discriminator_ptr) | |
d9071b0c TG |
5758 | { |
5759 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 5760 | if (mdata == NULL) |
d9071b0c | 5761 | return FALSE; |
2ca7691a TG |
5762 | switch (mdata->header.filetype) |
5763 | { | |
5764 | case BFD_MACH_O_MH_OBJECT: | |
5765 | break; | |
5766 | case BFD_MACH_O_MH_EXECUTE: | |
5767 | case BFD_MACH_O_MH_DYLIB: | |
5768 | case BFD_MACH_O_MH_BUNDLE: | |
5769 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
5770 | if (mdata->dwarf2_find_line_info == NULL) | |
07d6d2b8 AM |
5771 | { |
5772 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
5773 | /* When we couldn't find dSYM for this binary, we look for | |
5774 | the debug information in the binary itself. In this way, | |
5775 | we won't try finding separated dSYM again because | |
5776 | mdata->dwarf2_find_line_info will be filled. */ | |
5777 | if (! mdata->dsym_bfd) | |
5778 | break; | |
5779 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
5780 | dwarf_debug_sections, symbols, | |
5781 | &mdata->dwarf2_find_line_info, | |
93ee1e36 | 5782 | FALSE)) |
07d6d2b8 AM |
5783 | return FALSE; |
5784 | } | |
2ca7691a TG |
5785 | break; |
5786 | default: | |
5787 | return FALSE; | |
5788 | } | |
fb167eb2 AM |
5789 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
5790 | filename_ptr, functionname_ptr, | |
5791 | line_ptr, discriminator_ptr, | |
5792 | dwarf_debug_sections, 0, | |
5793 | &mdata->dwarf2_find_line_info); | |
d9071b0c TG |
5794 | } |
5795 | ||
5796 | bfd_boolean | |
5797 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
5798 | { | |
5799 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5800 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
5801 | { |
5802 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
5803 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a | 5804 | if (mdata->dsym_bfd != NULL) |
07d6d2b8 AM |
5805 | { |
5806 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
cf466c2a NC |
5807 | #if 0 |
5808 | /* FIXME: PR 19435: This calculation to find the memory allocated by | |
5809 | bfd_mach_o_follow_dsym for the filename does not always end up | |
5810 | selecting the correct pointer. Unfortunately this problem is | |
5811 | very hard to reproduce on a non Mach-O native system, so until it | |
5812 | can be traced and fixed on such a system, this code will remain | |
5813 | commented out. This does mean that there will be a memory leak, | |
5814 | but it is small, and happens when we are closing down, so it | |
c244074c | 5815 | should not matter too much. */ |
07d6d2b8 AM |
5816 | char *dsym_filename = (char *)(fat_bfd |
5817 | ? fat_bfd->filename | |
5818 | : mdata->dsym_bfd->filename); | |
cf466c2a | 5819 | #endif |
07d6d2b8 AM |
5820 | bfd_close (mdata->dsym_bfd); |
5821 | mdata->dsym_bfd = NULL; | |
5822 | if (fat_bfd) | |
5823 | bfd_close (fat_bfd); | |
cf466c2a | 5824 | #if 0 |
07d6d2b8 | 5825 | free (dsym_filename); |
cf466c2a | 5826 | #endif |
07d6d2b8 | 5827 | } |
4434114c | 5828 | } |
dff55db0 | 5829 | |
d9071b0c TG |
5830 | return _bfd_generic_close_and_cleanup (abfd); |
5831 | } | |
5832 | ||
dff55db0 TG |
5833 | bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd) |
5834 | { | |
5835 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5836 | asection *asect; | |
5837 | free (mdata->dyn_reloc_cache); | |
5838 | mdata->dyn_reloc_cache = NULL; | |
5839 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
5840 | { | |
5841 | free (asect->relocation); | |
5842 | asect->relocation = NULL; | |
5843 | } | |
5844 | ||
5845 | return TRUE; | |
5846 | } | |
5847 | ||
68ffbac6 | 5848 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
92bc0e80 TG |
5849 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
5850 | ||
bcb51645 | 5851 | #define bfd_mach_o_canonicalize_one_reloc NULL |
92bc0e80 | 5852 | #define bfd_mach_o_swap_reloc_out NULL |
b32e07d7 | 5853 | #define bfd_mach_o_print_thread NULL |
a4551119 | 5854 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 5855 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 5856 | |
07d6d2b8 AM |
5857 | #define TARGET_NAME mach_o_be_vec |
5858 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 5859 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 5860 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
5861 | #define TARGET_BIG_ENDIAN 1 |
5862 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 5863 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
5864 | #include "mach-o-target.c" |
5865 | ||
5866 | #undef TARGET_NAME | |
5867 | #undef TARGET_STRING | |
42fa0891 | 5868 | #undef TARGET_ARCHITECTURE |
4384b284 | 5869 | #undef TARGET_PAGESIZE |
3af9a47b NC |
5870 | #undef TARGET_BIG_ENDIAN |
5871 | #undef TARGET_ARCHIVE | |
b93a1992 | 5872 | #undef TARGET_PRIORITY |
3af9a47b | 5873 | |
07d6d2b8 AM |
5874 | #define TARGET_NAME mach_o_le_vec |
5875 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 5876 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 5877 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
5878 | #define TARGET_BIG_ENDIAN 0 |
5879 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 5880 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
5881 | |
5882 | #include "mach-o-target.c" | |
5883 | ||
5884 | #undef TARGET_NAME | |
5885 | #undef TARGET_STRING | |
42fa0891 | 5886 | #undef TARGET_ARCHITECTURE |
4384b284 | 5887 | #undef TARGET_PAGESIZE |
3af9a47b NC |
5888 | #undef TARGET_BIG_ENDIAN |
5889 | #undef TARGET_ARCHIVE | |
b93a1992 | 5890 | #undef TARGET_PRIORITY |
3af9a47b | 5891 | |
8f95b6e4 | 5892 | /* Not yet handled: creating an archive. */ |
07d6d2b8 | 5893 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
8f95b6e4 | 5894 | |
d00dd7dc | 5895 | #define bfd_mach_o_close_and_cleanup _bfd_bool_bfd_true |
47daa70f | 5896 | |
8f95b6e4 | 5897 | /* Not used. */ |
07d6d2b8 | 5898 | #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt |
47daa70f TG |
5899 | #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file |
5900 | #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p | |
8f95b6e4 | 5901 | |
07d6d2b8 AM |
5902 | #define TARGET_NAME mach_o_fat_vec |
5903 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 5904 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 5905 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
5906 | #define TARGET_BIG_ENDIAN 1 |
5907 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 5908 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
5909 | |
5910 | #include "mach-o-target.c" | |
5911 | ||
5912 | #undef TARGET_NAME | |
5913 | #undef TARGET_STRING | |
42fa0891 | 5914 | #undef TARGET_ARCHITECTURE |
4384b284 | 5915 | #undef TARGET_PAGESIZE |
3af9a47b NC |
5916 | #undef TARGET_BIG_ENDIAN |
5917 | #undef TARGET_ARCHIVE | |
b93a1992 | 5918 | #undef TARGET_PRIORITY |