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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 | ||
c6643fcc NC |
595 | static const char * |
596 | cputype (unsigned long value) | |
597 | { | |
598 | switch (value) | |
599 | { | |
600 | case BFD_MACH_O_CPU_TYPE_VAX: return "VAX"; | |
601 | case BFD_MACH_O_CPU_TYPE_MC680x0: return "MC68k"; | |
602 | case BFD_MACH_O_CPU_TYPE_I386: return "I386"; | |
603 | case BFD_MACH_O_CPU_TYPE_MIPS: return "MIPS"; | |
604 | case BFD_MACH_O_CPU_TYPE_MC98000: return "MC98k"; | |
605 | case BFD_MACH_O_CPU_TYPE_HPPA: return "HPPA"; | |
606 | case BFD_MACH_O_CPU_TYPE_ARM: return "ARM"; | |
607 | case BFD_MACH_O_CPU_TYPE_MC88000: return "MC88K"; | |
608 | case BFD_MACH_O_CPU_TYPE_SPARC: return "SPARC"; | |
609 | case BFD_MACH_O_CPU_TYPE_I860: return "I860"; | |
610 | case BFD_MACH_O_CPU_TYPE_ALPHA: return "ALPHA"; | |
611 | case BFD_MACH_O_CPU_TYPE_POWERPC: return "PPC"; | |
612 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: return "PPC64"; | |
613 | case BFD_MACH_O_CPU_TYPE_X86_64: return "X86_64"; | |
614 | case BFD_MACH_O_CPU_TYPE_ARM64: return "ARM64"; | |
615 | default: return _("<unknown>"); | |
616 | } | |
617 | } | |
618 | ||
619 | static const char * | |
620 | cpusubtype (unsigned long cputype, unsigned long cpusubtype) | |
621 | { | |
622 | static char buffer[128]; | |
623 | ||
624 | buffer[0] = 0; | |
625 | switch (cpusubtype & BFD_MACH_O_CPU_SUBTYPE_MASK) | |
626 | { | |
627 | case 0: | |
628 | break; | |
629 | case BFD_MACH_O_CPU_SUBTYPE_LIB64: | |
630 | sprintf (buffer, " (LIB64)"); break; | |
631 | default: | |
632 | sprintf (buffer, _("<unknown mask flags>")); break; | |
633 | } | |
634 | ||
635 | cpusubtype &= ~ BFD_MACH_O_CPU_SUBTYPE_MASK; | |
636 | ||
637 | switch (cputype) | |
638 | { | |
639 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
640 | case BFD_MACH_O_CPU_TYPE_I386: | |
641 | switch (cpusubtype) | |
642 | { | |
643 | case BFD_MACH_O_CPU_SUBTYPE_X86_ALL: | |
644 | return strcat (buffer, " (X86_ALL)"); | |
645 | default: | |
646 | break; | |
647 | } | |
648 | break; | |
649 | ||
650 | case BFD_MACH_O_CPU_TYPE_ARM: | |
651 | switch (cpusubtype) | |
652 | { | |
653 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
654 | return strcat (buffer, " (ARM_ALL)"); | |
655 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
656 | return strcat (buffer, " (ARM_V4T)"); | |
657 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
658 | return strcat (buffer, " (ARM_V6)"); | |
659 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
660 | return strcat (buffer, " (ARM_V5TEJ)"); | |
661 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
662 | return strcat (buffer, " (ARM_XSCALE)"); | |
663 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
664 | return strcat (buffer, " (ARM_V7)"); | |
665 | default: | |
666 | break; | |
667 | } | |
668 | break; | |
669 | ||
670 | case BFD_MACH_O_CPU_TYPE_ARM64: | |
671 | switch (cpusubtype) | |
672 | { | |
673 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL: | |
674 | return strcat (buffer, " (ARM64_ALL)"); | |
675 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8: | |
676 | return strcat (buffer, " (ARM64_V8)"); | |
677 | default: | |
678 | break; | |
679 | } | |
680 | break; | |
681 | ||
682 | default: | |
683 | break; | |
684 | } | |
685 | ||
686 | if (cpusubtype != 0) | |
687 | return strcat (buffer, _(" (<unknown>)")); | |
688 | ||
689 | return buffer; | |
690 | } | |
691 | ||
692 | bfd_boolean | |
693 | bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr) | |
694 | { | |
695 | FILE * file = (FILE *) ptr; | |
696 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
697 | ||
698 | fprintf (file, _(" MACH-O header:\n")); | |
699 | fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic); | |
700 | fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype, | |
701 | cputype (mdata->header.cputype)); | |
702 | fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype, | |
703 | cpusubtype (mdata->header.cputype, mdata->header.cpusubtype)); | |
704 | fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype); | |
705 | fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds); | |
706 | fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds); | |
707 | fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags); | |
708 | fprintf (file, _(" version: %x\n"), mdata->header.version); | |
709 | ||
710 | return TRUE; | |
711 | } | |
712 | ||
3af9a47b NC |
713 | /* Copy any private info we understand from the input bfd |
714 | to the output bfd. */ | |
715 | ||
154a1ee5 | 716 | bfd_boolean |
967b2c53 | 717 | bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 718 | { |
c9ffd2ea TG |
719 | bfd_mach_o_data_struct *imdata; |
720 | bfd_mach_o_data_struct *omdata; | |
721 | bfd_mach_o_load_command *icmd; | |
722 | ||
154a1ee5 TG |
723 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
724 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
725 | return TRUE; | |
726 | ||
3af9a47b NC |
727 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
728 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
729 | ||
c9ffd2ea TG |
730 | imdata = bfd_mach_o_get_data (ibfd); |
731 | omdata = bfd_mach_o_get_data (obfd); | |
732 | ||
733 | /* Copy header flags. */ | |
734 | omdata->header.flags = imdata->header.flags; | |
735 | ||
c6643fcc NC |
736 | /* PR 23299. Copy the cputype. */ |
737 | if (imdata->header.cputype != omdata->header.cputype) | |
738 | { | |
739 | if (omdata->header.cputype == 0) | |
740 | omdata->header.cputype = imdata->header.cputype; | |
741 | else if (imdata->header.cputype != 0) | |
742 | /* Urg - what has happened ? */ | |
743 | _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"), | |
744 | (long) imdata->header.cputype, | |
745 | (long) omdata->header.cputype); | |
746 | } | |
747 | ||
748 | /* Copy the cpusubtype. */ | |
749 | omdata->header.cpusubtype = imdata->header.cpusubtype; | |
750 | ||
c9ffd2ea TG |
751 | /* Copy commands. */ |
752 | for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next) | |
753 | { | |
754 | bfd_mach_o_load_command *ocmd; | |
755 | ||
756 | switch (icmd->type) | |
757 | { | |
758 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
759 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
760 | case BFD_MACH_O_LC_DYLD_INFO: | |
761 | /* Command is copied. */ | |
762 | ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command)); | |
763 | if (ocmd == NULL) | |
764 | return FALSE; | |
765 | ||
766 | /* Copy common fields. */ | |
767 | ocmd->type = icmd->type; | |
768 | ocmd->type_required = icmd->type_required; | |
769 | ocmd->offset = 0; | |
770 | ocmd->len = icmd->len; | |
771 | break; | |
772 | ||
773 | default: | |
774 | /* Command is not copied. */ | |
775 | continue; | |
776 | break; | |
777 | } | |
778 | ||
779 | switch (icmd->type) | |
780 | { | |
781 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
782 | { | |
783 | bfd_mach_o_dylib_command *idy = &icmd->command.dylib; | |
784 | bfd_mach_o_dylib_command *ody = &ocmd->command.dylib; | |
785 | ||
786 | ody->name_offset = idy->name_offset; | |
787 | ody->timestamp = idy->timestamp; | |
788 | ody->current_version = idy->current_version; | |
789 | ody->compatibility_version = idy->compatibility_version; | |
790 | ody->name_str = idy->name_str; | |
791 | } | |
792 | break; | |
793 | ||
794 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
795 | { | |
796 | bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker; | |
797 | bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker; | |
798 | ||
799 | ody->name_offset = idy->name_offset; | |
800 | ody->name_str = idy->name_str; | |
801 | } | |
802 | break; | |
803 | ||
804 | case BFD_MACH_O_LC_DYLD_INFO: | |
805 | { | |
806 | bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info; | |
807 | bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info; | |
808 | ||
809 | if (bfd_mach_o_read_dyld_content (ibfd, idy)) | |
810 | { | |
811 | ody->rebase_size = idy->rebase_size; | |
812 | ody->rebase_content = idy->rebase_content; | |
813 | ||
814 | ody->bind_size = idy->bind_size; | |
815 | ody->bind_content = idy->bind_content; | |
816 | ||
817 | ody->weak_bind_size = idy->weak_bind_size; | |
818 | ody->weak_bind_content = idy->weak_bind_content; | |
819 | ||
820 | ody->lazy_bind_size = idy->lazy_bind_size; | |
821 | ody->lazy_bind_content = idy->lazy_bind_content; | |
822 | ||
823 | ody->export_size = idy->export_size; | |
824 | ody->export_content = idy->export_content; | |
825 | } | |
86eafac0 NC |
826 | /* PR 17512L: file: 730e492d. */ |
827 | else | |
828 | { | |
1b786873 L |
829 | ody->rebase_size = |
830 | ody->bind_size = | |
831 | ody->weak_bind_size = | |
832 | ody->lazy_bind_size = | |
86eafac0 | 833 | ody->export_size = 0; |
1b786873 L |
834 | ody->rebase_content = |
835 | ody->bind_content = | |
836 | ody->weak_bind_content = | |
837 | ody->lazy_bind_content = | |
86eafac0 NC |
838 | ody->export_content = NULL; |
839 | } | |
c9ffd2ea TG |
840 | } |
841 | break; | |
842 | ||
843 | default: | |
844 | /* That command should be handled. */ | |
845 | abort (); | |
846 | } | |
847 | ||
848 | /* Insert command. */ | |
849 | bfd_mach_o_append_command (obfd, ocmd); | |
850 | } | |
154a1ee5 | 851 | |
b34976b6 | 852 | return TRUE; |
3af9a47b NC |
853 | } |
854 | ||
0c9ef0f0 TG |
855 | /* This allows us to set up to 32 bits of flags (unless we invent some |
856 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
857 | without error checking - just overwrite. */ | |
68ffbac6 | 858 | |
0c9ef0f0 TG |
859 | bfd_boolean |
860 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) | |
861 | { | |
862 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
863 | ||
864 | if (!mdata) | |
865 | return FALSE; | |
866 | ||
867 | mdata->header.flags = flags; | |
868 | return TRUE; | |
869 | } | |
870 | ||
046b007d | 871 | /* Count the total number of symbols. */ |
154a1ee5 | 872 | |
3af9a47b | 873 | static long |
116c20d2 | 874 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 875 | { |
046b007d | 876 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 877 | |
046b007d TG |
878 | if (mdata->symtab == NULL) |
879 | return 0; | |
880 | return mdata->symtab->nsyms; | |
3af9a47b NC |
881 | } |
882 | ||
154a1ee5 | 883 | long |
116c20d2 | 884 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
885 | { |
886 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
887 | ||
3af9a47b NC |
888 | return ((nsyms + 1) * sizeof (asymbol *)); |
889 | } | |
890 | ||
154a1ee5 | 891 | long |
116c20d2 | 892 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 893 | { |
046b007d | 894 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 895 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
896 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
897 | unsigned long j; | |
3af9a47b NC |
898 | |
899 | if (nsyms < 0) | |
900 | return nsyms; | |
901 | ||
092d27ff TG |
902 | if (nsyms == 0) |
903 | { | |
904 | /* Do not try to read symbols if there are none. */ | |
905 | alocation[0] = NULL; | |
906 | return 0; | |
907 | } | |
908 | ||
afbb9e17 | 909 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 910 | { |
4eca0228 | 911 | _bfd_error_handler |
07d6d2b8 | 912 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); |
046b007d TG |
913 | return 0; |
914 | } | |
3af9a47b | 915 | |
046b007d | 916 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 917 | |
046b007d TG |
918 | for (j = 0; j < sym->nsyms; j++) |
919 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 920 | |
046b007d | 921 | alocation[j] = NULL; |
a95a4550 | 922 | |
3af9a47b NC |
923 | return nsyms; |
924 | } | |
925 | ||
aeefa1c9 TG |
926 | /* Create synthetic symbols for indirect symbols. */ |
927 | ||
b2b62060 TG |
928 | long |
929 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
07d6d2b8 AM |
930 | long symcount ATTRIBUTE_UNUSED, |
931 | asymbol **syms ATTRIBUTE_UNUSED, | |
932 | long dynsymcount ATTRIBUTE_UNUSED, | |
933 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
934 | asymbol **ret) | |
b2b62060 TG |
935 | { |
936 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
937 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
938 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
939 | asymbol *s; | |
896ca098 NC |
940 | char * s_start; |
941 | char * s_end; | |
b2b62060 TG |
942 | unsigned long count, i, j, n; |
943 | size_t size; | |
944 | char *names; | |
945 | char *nul_name; | |
896ca098 | 946 | const char stub [] = "$stub"; |
b2b62060 TG |
947 | |
948 | *ret = NULL; | |
949 | ||
aeefa1c9 | 950 | /* Stop now if no symbols or no indirect symbols. */ |
896ca098 NC |
951 | if (dysymtab == NULL || dysymtab->nindirectsyms == 0 |
952 | || symtab == NULL || symtab->symbols == NULL) | |
b2b62060 TG |
953 | return 0; |
954 | ||
aeefa1c9 TG |
955 | /* We need to allocate a bfd symbol for every indirect symbol and to |
956 | allocate the memory for its name. */ | |
b2b62060 TG |
957 | count = dysymtab->nindirectsyms; |
958 | size = count * sizeof (asymbol) + 1; | |
959 | ||
960 | for (j = 0; j < count; j++) | |
961 | { | |
896ca098 | 962 | const char * strng; |
b2b62060 | 963 | unsigned int isym = dysymtab->indirect_syms[j]; |
aeefa1c9 TG |
964 | |
965 | /* Some indirect symbols are anonymous. */ | |
896ca098 NC |
966 | if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name)) |
967 | /* PR 17512: file: f5b8eeba. */ | |
968 | size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub); | |
b2b62060 TG |
969 | } |
970 | ||
896ca098 NC |
971 | s_start = bfd_malloc (size); |
972 | s = *ret = (asymbol *) s_start; | |
b2b62060 TG |
973 | if (s == NULL) |
974 | return -1; | |
975 | names = (char *) (s + count); | |
976 | nul_name = names; | |
977 | *names++ = 0; | |
896ca098 | 978 | s_end = s_start + size; |
68ffbac6 | 979 | |
b2b62060 TG |
980 | n = 0; |
981 | for (i = 0; i < mdata->nsects; i++) | |
982 | { | |
983 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 984 | unsigned int first, last; |
b2b62060 TG |
985 | bfd_vma addr; |
986 | bfd_vma entry_size; | |
68ffbac6 | 987 | |
b2b62060 | 988 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
07d6d2b8 AM |
989 | { |
990 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
991 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
992 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
993 | /* Only these sections have indirect symbols. */ | |
994 | first = sec->reserved1; | |
995 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
996 | addr = sec->addr; | |
997 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
896ca098 NC |
998 | |
999 | /* PR 17512: file: 08e15eec. */ | |
1000 | if (first >= count || last >= count || first > last) | |
1001 | goto fail; | |
1002 | ||
07d6d2b8 AM |
1003 | for (j = first; j < last; j++) |
1004 | { | |
1005 | unsigned int isym = dysymtab->indirect_syms[j]; | |
b2b62060 | 1006 | |
896ca098 NC |
1007 | /* PR 17512: file: 04d64d9b. */ |
1008 | if (((char *) s) + sizeof (* s) > s_end) | |
1009 | goto fail; | |
1010 | ||
07d6d2b8 AM |
1011 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
1012 | s->section = sec->bfdsection; | |
1013 | s->value = addr - sec->addr; | |
1014 | s->udata.p = NULL; | |
68ffbac6 | 1015 | |
07d6d2b8 AM |
1016 | if (isym < symtab->nsyms |
1017 | && symtab->symbols[isym].symbol.name) | |
1018 | { | |
1019 | const char *sym = symtab->symbols[isym].symbol.name; | |
1020 | size_t len; | |
b2b62060 | 1021 | |
07d6d2b8 AM |
1022 | s->name = names; |
1023 | len = strlen (sym); | |
896ca098 NC |
1024 | /* PR 17512: file: 47dfd4d2. */ |
1025 | if (names + len >= s_end) | |
1026 | goto fail; | |
07d6d2b8 AM |
1027 | memcpy (names, sym, len); |
1028 | names += len; | |
896ca098 NC |
1029 | /* PR 17512: file: 18f340a4. */ |
1030 | if (names + sizeof (stub) >= s_end) | |
1031 | goto fail; | |
07d6d2b8 AM |
1032 | memcpy (names, stub, sizeof (stub)); |
1033 | names += sizeof (stub); | |
1034 | } | |
1035 | else | |
1036 | s->name = nul_name; | |
1037 | ||
1038 | addr += entry_size; | |
1039 | s++; | |
1040 | n++; | |
1041 | } | |
1042 | break; | |
1043 | default: | |
1044 | break; | |
1045 | } | |
b2b62060 TG |
1046 | } |
1047 | ||
1048 | return n; | |
896ca098 NC |
1049 | |
1050 | fail: | |
1051 | free (s_start); | |
1052 | * ret = NULL; | |
1053 | return -1; | |
b2b62060 TG |
1054 | } |
1055 | ||
154a1ee5 | 1056 | void |
116c20d2 NC |
1057 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
1058 | asymbol *symbol, | |
1059 | symbol_info *ret) | |
3af9a47b NC |
1060 | { |
1061 | bfd_symbol_info (symbol, ret); | |
1062 | } | |
1063 | ||
154a1ee5 | 1064 | void |
116c20d2 | 1065 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 1066 | void * afile, |
116c20d2 NC |
1067 | asymbol *symbol, |
1068 | bfd_print_symbol_type how) | |
3af9a47b NC |
1069 | { |
1070 | FILE *file = (FILE *) afile; | |
15e1c58a | 1071 | const char *name; |
92bc0e80 | 1072 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
1073 | |
1074 | switch (how) | |
1075 | { | |
1076 | case bfd_print_symbol_name: | |
1077 | fprintf (file, "%s", symbol->name); | |
1078 | break; | |
1079 | default: | |
91d6fa6a | 1080 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
1081 | if (asym->n_type & BFD_MACH_O_N_STAB) |
1082 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 1083 | else |
92bc0e80 | 1084 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
1085 | { |
1086 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
1087 | if (symbol->value == 0) |
1088 | name = "UND"; | |
1089 | else | |
1090 | name = "COM"; | |
15e1c58a TG |
1091 | break; |
1092 | case BFD_MACH_O_N_ABS: | |
1093 | name = "ABS"; | |
1094 | break; | |
1095 | case BFD_MACH_O_N_INDR: | |
1096 | name = "INDR"; | |
1097 | break; | |
1098 | case BFD_MACH_O_N_PBUD: | |
1099 | name = "PBUD"; | |
1100 | break; | |
1101 | case BFD_MACH_O_N_SECT: | |
1102 | name = "SECT"; | |
1103 | break; | |
1104 | default: | |
1105 | name = "???"; | |
1106 | break; | |
1107 | } | |
1108 | if (name == NULL) | |
1109 | name = ""; | |
92bc0e80 | 1110 | fprintf (file, " %02x %-6s %02x %04x", |
07d6d2b8 | 1111 | asym->n_type, name, asym->n_sect, asym->n_desc); |
92bc0e80 TG |
1112 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 |
1113 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 1114 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 1115 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
1116 | } |
1117 | } | |
1118 | ||
1119 | static void | |
116c20d2 | 1120 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 1121 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
1122 | enum bfd_architecture *type, |
1123 | unsigned long *subtype) | |
3af9a47b NC |
1124 | { |
1125 | *subtype = bfd_arch_unknown; | |
1126 | ||
1127 | switch (mtype) | |
1128 | { | |
0b2de107 TG |
1129 | case BFD_MACH_O_CPU_TYPE_VAX: |
1130 | *type = bfd_arch_vax; | |
1131 | break; | |
1132 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1133 | *type = bfd_arch_m68k; | |
1134 | break; | |
1e8a024a TG |
1135 | case BFD_MACH_O_CPU_TYPE_I386: |
1136 | *type = bfd_arch_i386; | |
1137 | *subtype = bfd_mach_i386_i386; | |
1138 | break; | |
1139 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
1140 | *type = bfd_arch_i386; | |
1141 | *subtype = bfd_mach_x86_64; | |
1142 | break; | |
0b2de107 TG |
1143 | case BFD_MACH_O_CPU_TYPE_MIPS: |
1144 | *type = bfd_arch_mips; | |
1145 | break; | |
1146 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
1147 | *type = bfd_arch_m98k; | |
1148 | break; | |
1149 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
1150 | *type = bfd_arch_hppa; | |
1151 | break; | |
1152 | case BFD_MACH_O_CPU_TYPE_ARM: | |
1153 | *type = bfd_arch_arm; | |
1154 | switch (msubtype) | |
07d6d2b8 AM |
1155 | { |
1156 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
1157 | *subtype = bfd_mach_arm_4T; | |
1158 | break; | |
1159 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
1160 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
1161 | break; | |
1162 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
1163 | *subtype = bfd_mach_arm_5TE; | |
1164 | break; | |
1165 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
1166 | *subtype = bfd_mach_arm_XScale; | |
1167 | break; | |
1168 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
1169 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
1170 | break; | |
1171 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
1172 | default: | |
1173 | break; | |
1174 | } | |
0b2de107 | 1175 | break; |
1e8a024a TG |
1176 | case BFD_MACH_O_CPU_TYPE_SPARC: |
1177 | *type = bfd_arch_sparc; | |
1178 | *subtype = bfd_mach_sparc; | |
1179 | break; | |
0b2de107 TG |
1180 | case BFD_MACH_O_CPU_TYPE_ALPHA: |
1181 | *type = bfd_arch_alpha; | |
1182 | break; | |
1e8a024a TG |
1183 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
1184 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1185 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
1186 | break; |
1187 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
1188 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1189 | *subtype = bfd_mach_ppc64; |
1e8a024a | 1190 | break; |
d8028530 TG |
1191 | case BFD_MACH_O_CPU_TYPE_ARM64: |
1192 | *type = bfd_arch_aarch64; | |
1193 | *subtype = bfd_mach_aarch64; | |
1194 | break; | |
3af9a47b | 1195 | default: |
1e8a024a TG |
1196 | *type = bfd_arch_unknown; |
1197 | break; | |
3af9a47b NC |
1198 | } |
1199 | } | |
a95a4550 | 1200 | |
c9ffd2ea TG |
1201 | /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the |
1202 | number of bytes written or -1 in case of error. */ | |
1203 | ||
1204 | static int | |
1205 | bfd_mach_o_pad4 (bfd *abfd, unsigned int len) | |
1206 | { | |
1207 | if (len % 4 != 0) | |
1208 | { | |
1209 | char pad[4] = {0,0,0,0}; | |
1210 | unsigned int padlen = 4 - (len % 4); | |
1211 | ||
1212 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1213 | return -1; | |
1214 | ||
1215 | return padlen; | |
1216 | } | |
1217 | else | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | /* Likewise, but for a command. */ | |
1222 | ||
1223 | static int | |
1224 | bfd_mach_o_pad_command (bfd *abfd, unsigned int len) | |
1225 | { | |
1226 | unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
1227 | ||
1228 | if (len % align != 0) | |
1229 | { | |
1230 | char pad[8] = {0}; | |
1231 | unsigned int padlen = align - (len % align); | |
1232 | ||
1233 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1234 | return -1; | |
1235 | ||
1236 | return padlen; | |
1237 | } | |
1238 | else | |
1239 | return 0; | |
1240 | } | |
1241 | ||
154a1ee5 | 1242 | static bfd_boolean |
116c20d2 NC |
1243 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
1244 | { | |
46d1c23b | 1245 | struct mach_o_header_external raw; |
1e8a024a TG |
1246 | unsigned int size; |
1247 | ||
c2f09c75 | 1248 | size = mach_o_wide_p (header) ? |
154a1ee5 | 1249 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 1250 | |
46d1c23b TG |
1251 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
1252 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
1253 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
1254 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
1255 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
1256 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
1257 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 1258 | |
c2f09c75 | 1259 | if (mach_o_wide_p (header)) |
46d1c23b | 1260 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 1261 | |
c2f09c75 | 1262 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1263 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 1264 | return FALSE; |
116c20d2 | 1265 | |
154a1ee5 | 1266 | return TRUE; |
116c20d2 NC |
1267 | } |
1268 | ||
452216ab | 1269 | static bfd_boolean |
ab273af8 | 1270 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
1271 | { |
1272 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1273 | unsigned int i; | |
46d1c23b | 1274 | struct mach_o_thread_command_external raw; |
92bc0e80 | 1275 | unsigned int offset; |
116c20d2 NC |
1276 | |
1277 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1278 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1279 | ||
c9ffd2ea | 1280 | offset = BFD_MACH_O_LC_SIZE; |
116c20d2 NC |
1281 | for (i = 0; i < cmd->nflavours; i++) |
1282 | { | |
1283 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b | 1284 | BFD_ASSERT (cmd->flavours[i].offset == |
07d6d2b8 | 1285 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); |
116c20d2 | 1286 | |
46d1c23b TG |
1287 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
1288 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 1289 | |
c2f09c75 | 1290 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 1291 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 1292 | return FALSE; |
116c20d2 | 1293 | |
46d1c23b | 1294 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
1295 | } |
1296 | ||
452216ab | 1297 | return TRUE; |
116c20d2 NC |
1298 | } |
1299 | ||
c9ffd2ea TG |
1300 | static bfd_boolean |
1301 | bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command) | |
1302 | { | |
1303 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
1304 | struct mach_o_str_command_external raw; | |
1305 | unsigned int namelen; | |
1306 | ||
1307 | bfd_h_put_32 (abfd, cmd->name_offset, raw.str); | |
1308 | ||
1309 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1310 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1311 | return FALSE; | |
1312 | ||
1313 | namelen = strlen (cmd->name_str) + 1; | |
1314 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1315 | return FALSE; | |
1316 | ||
1317 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1318 | return FALSE; | |
1319 | ||
1320 | return TRUE; | |
1321 | } | |
1322 | ||
1323 | static bfd_boolean | |
1324 | bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command) | |
1325 | { | |
1326 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
1327 | struct mach_o_dylib_command_external raw; | |
1328 | unsigned int namelen; | |
1329 | ||
1330 | bfd_h_put_32 (abfd, cmd->name_offset, raw.name); | |
1331 | bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp); | |
1332 | bfd_h_put_32 (abfd, cmd->current_version, raw.current_version); | |
1333 | bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version); | |
1334 | ||
1335 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1336 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1337 | return FALSE; | |
1338 | ||
1339 | namelen = strlen (cmd->name_str) + 1; | |
1340 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1341 | return FALSE; | |
1342 | ||
1343 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1344 | return FALSE; | |
1345 | ||
1346 | return TRUE; | |
1347 | } | |
1348 | ||
1349 | static bfd_boolean | |
1350 | bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command) | |
1351 | { | |
1352 | bfd_mach_o_main_command *cmd = &command->command.main; | |
1353 | struct mach_o_entry_point_command_external raw; | |
1354 | ||
1355 | bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff); | |
1356 | bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize); | |
1357 | ||
1358 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1359 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1360 | return FALSE; | |
1361 | ||
1362 | return TRUE; | |
1363 | } | |
1364 | ||
1365 | static bfd_boolean | |
1366 | bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) | |
1367 | { | |
1368 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
1369 | struct mach_o_dyld_info_command_external raw; | |
1370 | ||
1371 | bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off); | |
1372 | bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size); | |
1373 | bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off); | |
1374 | bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size); | |
1375 | bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off); | |
1376 | bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size); | |
1377 | bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off); | |
1378 | bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size); | |
1379 | bfd_h_put_32 (abfd, cmd->export_off, raw.export_off); | |
1380 | bfd_h_put_32 (abfd, cmd->export_size, raw.export_size); | |
1381 | ||
1382 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1383 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1384 | return FALSE; | |
1385 | ||
1386 | if (cmd->rebase_size != 0) | |
1387 | if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0 | |
1388 | || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) != | |
1389 | cmd->rebase_size)) | |
1390 | return FALSE; | |
1391 | ||
1392 | if (cmd->bind_size != 0) | |
1393 | if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0 | |
1394 | || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) != | |
1395 | cmd->bind_size)) | |
1396 | return FALSE; | |
1397 | ||
1398 | if (cmd->weak_bind_size != 0) | |
1399 | if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0 | |
1400 | || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) != | |
1401 | cmd->weak_bind_size)) | |
1402 | return FALSE; | |
1403 | ||
1404 | if (cmd->lazy_bind_size != 0) | |
1405 | if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0 | |
1406 | || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) != | |
1407 | cmd->lazy_bind_size)) | |
1408 | return FALSE; | |
1409 | ||
1410 | if (cmd->export_size != 0) | |
1411 | if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0 | |
1412 | || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) != | |
1413 | cmd->export_size)) | |
1414 | return FALSE; | |
1415 | ||
1416 | return TRUE; | |
1417 | } | |
1418 | ||
92bc0e80 TG |
1419 | long |
1420 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 1421 | asection *asect) |
92bc0e80 TG |
1422 | { |
1423 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1424 | } | |
1425 | ||
19765f52 IS |
1426 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1427 | of the fields in the relocation information vary per target endian-ness. */ | |
1428 | ||
bcb51645 | 1429 | void |
19765f52 | 1430 | bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel, |
c6643fcc | 1431 | unsigned char *fields) |
19765f52 IS |
1432 | { |
1433 | unsigned char info = fields[3]; | |
1434 | ||
1435 | if (bfd_big_endian (abfd)) | |
1436 | { | |
1437 | rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2]; | |
1438 | rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1439 | rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0; | |
68ffbac6 | 1440 | rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT) |
19765f52 IS |
1441 | & BFD_MACH_O_LENGTH_MASK; |
1442 | rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0; | |
1443 | } | |
1444 | else | |
1445 | { | |
1446 | rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0]; | |
1447 | rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1448 | rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0; | |
68ffbac6 | 1449 | rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT) |
19765f52 IS |
1450 | & BFD_MACH_O_LENGTH_MASK; |
1451 | rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0; | |
1452 | } | |
1453 | } | |
1454 | ||
bcb51645 TG |
1455 | /* Set syms_ptr_ptr and addend of RES. */ |
1456 | ||
1457 | bfd_boolean | |
1458 | bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd, | |
1459 | bfd_mach_o_reloc_info *reloc, | |
1460 | arelent *res, asymbol **syms) | |
92bc0e80 | 1461 | { |
046b007d | 1462 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bcb51645 | 1463 | unsigned int num; |
b32e07d7 TG |
1464 | asymbol **sym; |
1465 | ||
bcb51645 TG |
1466 | /* Non-scattered relocation. */ |
1467 | reloc->r_scattered = 0; | |
1468 | res->addend = 0; | |
1469 | ||
1470 | num = reloc->r_value; | |
1471 | ||
1472 | if (reloc->r_extern) | |
1473 | { | |
1474 | /* PR 17512: file: 8396-1185-0.004. */ | |
1475 | if (num >= (unsigned) bfd_mach_o_count_symbols (abfd)) | |
1476 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1477 | else if (syms == NULL) | |
1478 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1479 | else | |
1480 | /* An external symbol number. */ | |
1481 | sym = syms + num; | |
1482 | } | |
1483 | else if (num == 0x00ffffff || num == 0) | |
1484 | { | |
1485 | /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this | |
1486 | is generic code, we don't know wether this is really a PAIR. | |
1487 | This value is almost certainly not a valid section number, hence | |
1488 | this specific case to avoid an assertion failure. | |
1489 | Target specific swap_reloc_in routine should adjust that. */ | |
1490 | sym = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1491 | } | |
1492 | else | |
1493 | { | |
1494 | /* PR 17512: file: 006-2964-0.004. */ | |
1495 | if (num > mdata->nsects) | |
1496 | return FALSE; | |
1497 | ||
1498 | /* A section number. */ | |
1499 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1500 | /* For a symbol defined in section S, the addend (stored in the | |
1501 | binary) contains the address of the section. To comply with | |
1502 | bfd convention, subtract the section address. | |
1503 | Use the address from the header, so that the user can modify | |
07d6d2b8 | 1504 | the vma of the section. */ |
bcb51645 TG |
1505 | res->addend = -mdata->sections[num - 1]->addr; |
1506 | } | |
1507 | ||
1508 | /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset | |
1509 | in the lower 16bits of the address value. So we have to find the | |
1510 | 'symbol' from the preceding reloc. We do this even though the | |
1511 | section symbol is probably not needed here, because NULL symbol | |
1512 | values cause an assert in generic BFD code. This must be done in | |
1513 | the PPC swap_reloc_in routine. */ | |
1514 | res->sym_ptr_ptr = sym; | |
1515 | ||
1516 | return TRUE; | |
1517 | } | |
1518 | ||
1519 | /* Do most of the work for canonicalize_relocs on RAW: create internal | |
1520 | representation RELOC and set most fields of RES using symbol table SYMS. | |
1521 | Each target still has to set the howto of RES and possibly adjust other | |
1522 | fields. | |
1523 | Previously the Mach-O hook point was simply swap_in, but some targets | |
1524 | (like arm64) don't follow the generic rules (symnum is a value for the | |
1525 | non-scattered relocation ADDEND). */ | |
1526 | ||
1527 | bfd_boolean | |
1528 | bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd, | |
1529 | struct mach_o_reloc_info_external *raw, | |
1530 | bfd_mach_o_reloc_info *reloc, | |
1531 | arelent *res, asymbol **syms) | |
1532 | { | |
1533 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1534 | bfd_vma addr; | |
1535 | ||
46d1c23b | 1536 | addr = bfd_get_32 (abfd, raw->r_address); |
19765f52 IS |
1537 | res->sym_ptr_ptr = NULL; |
1538 | res->addend = 0; | |
f4716ee2 | 1539 | |
b32e07d7 TG |
1540 | if (addr & BFD_MACH_O_SR_SCATTERED) |
1541 | { | |
1542 | unsigned int j; | |
19765f52 | 1543 | bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum); |
b32e07d7 | 1544 | |
19765f52 | 1545 | /* Scattered relocation, can't be extern. */ |
bcb51645 TG |
1546 | reloc->r_scattered = 1; |
1547 | reloc->r_extern = 0; | |
19765f52 IS |
1548 | |
1549 | /* Extract section and offset from r_value (symnum). */ | |
bcb51645 | 1550 | reloc->r_value = symnum; |
19765f52 IS |
1551 | /* FIXME: This breaks when a symbol in a reloc exactly follows the |
1552 | end of the data for the section (e.g. in a calculation of section | |
1553 | data length). At present, the symbol will end up associated with | |
1554 | the following section or, if it falls within alignment padding, as | |
1555 | null - which will assert later. */ | |
b32e07d7 | 1556 | for (j = 0; j < mdata->nsects; j++) |
07d6d2b8 AM |
1557 | { |
1558 | bfd_mach_o_section *sect = mdata->sections[j]; | |
1559 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
1560 | { | |
1561 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1562 | res->addend = symnum - sect->addr; | |
1563 | break; | |
1564 | } | |
1565 | } | |
19765f52 IS |
1566 | |
1567 | /* Extract the info and address fields from r_address. */ | |
bcb51645 TG |
1568 | reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
1569 | reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1570 | reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
1571 | reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr); | |
19765f52 | 1572 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); |
b32e07d7 TG |
1573 | } |
1574 | else | |
1575 | { | |
19765f52 | 1576 | /* Non-scattered relocation. */ |
bcb51645 TG |
1577 | reloc->r_scattered = 0; |
1578 | reloc->r_address = addr; | |
1579 | res->address = addr; | |
f4716ee2 | 1580 | |
19765f52 | 1581 | /* The value and info fields have to be extracted dependent on target |
07d6d2b8 | 1582 | endian-ness. */ |
bcb51645 | 1583 | bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum); |
19765f52 | 1584 | |
bcb51645 TG |
1585 | if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc, |
1586 | res, syms)) | |
1587 | return FALSE; | |
b32e07d7 | 1588 | } |
f4716ee2 TG |
1589 | |
1590 | /* We have set up a reloc with all the information present, so the swapper | |
1591 | can modify address, value and addend fields, if necessary, to convey | |
1592 | information in the generic BFD reloc that is mach-o specific. */ | |
19765f52 | 1593 | |
bcb51645 | 1594 | return TRUE; |
b32e07d7 TG |
1595 | } |
1596 | ||
1597 | static int | |
1598 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
07d6d2b8 AM |
1599 | unsigned long count, |
1600 | arelent *res, asymbol **syms) | |
b32e07d7 | 1601 | { |
bcb51645 | 1602 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
92bc0e80 | 1603 | unsigned long i; |
46d1c23b | 1604 | struct mach_o_reloc_info_external *native_relocs; |
92bc0e80 TG |
1605 | bfd_size_type native_size; |
1606 | ||
92bc0e80 | 1607 | /* Allocate and read relocs. */ |
b32e07d7 | 1608 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
033539e2 | 1609 | |
64d29018 NC |
1610 | /* PR 17512: file: 09477b57. */ |
1611 | if (native_size < count) | |
1612 | return -1; | |
1613 | ||
46d1c23b TG |
1614 | native_relocs = |
1615 | (struct mach_o_reloc_info_external *) bfd_malloc (native_size); | |
92bc0e80 TG |
1616 | if (native_relocs == NULL) |
1617 | return -1; | |
1618 | ||
b32e07d7 | 1619 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
92bc0e80 | 1620 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
b32e07d7 TG |
1621 | goto err; |
1622 | ||
1623 | for (i = 0; i < count; i++) | |
92bc0e80 | 1624 | { |
bcb51645 | 1625 | if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i], |
ca4cf9b9 | 1626 | &res[i], syms, res)) |
07d6d2b8 | 1627 | goto err; |
92bc0e80 | 1628 | } |
b32e07d7 TG |
1629 | free (native_relocs); |
1630 | return i; | |
1631 | err: | |
1632 | free (native_relocs); | |
1633 | return -1; | |
1634 | } | |
1635 | ||
1636 | long | |
1637 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
07d6d2b8 | 1638 | arelent **rels, asymbol **syms) |
b32e07d7 TG |
1639 | { |
1640 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1641 | unsigned long i; | |
1642 | arelent *res; | |
1643 | ||
1644 | if (asect->reloc_count == 0) | |
1645 | return 0; | |
1646 | ||
1647 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1648 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 | 1649 | return 0; |
92bc0e80 | 1650 | |
dff55db0 | 1651 | if (asect->relocation == NULL) |
92bc0e80 | 1652 | { |
64d29018 NC |
1653 | if (asect->reloc_count * sizeof (arelent) < asect->reloc_count) |
1654 | return -1; | |
dff55db0 TG |
1655 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); |
1656 | if (res == NULL) | |
07d6d2b8 | 1657 | return -1; |
dff55db0 TG |
1658 | |
1659 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
07d6d2b8 AM |
1660 | asect->reloc_count, res, syms) < 0) |
1661 | { | |
1662 | free (res); | |
1663 | return -1; | |
1664 | } | |
dff55db0 | 1665 | asect->relocation = res; |
92bc0e80 TG |
1666 | } |
1667 | ||
dff55db0 | 1668 | res = asect->relocation; |
92bc0e80 | 1669 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1670 | rels[i] = &res[i]; |
1671 | rels[i] = NULL; | |
92bc0e80 | 1672 | |
b32e07d7 TG |
1673 | return i; |
1674 | } | |
92bc0e80 | 1675 | |
b32e07d7 TG |
1676 | long |
1677 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1678 | { | |
1679 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1680 | |
b32e07d7 TG |
1681 | if (mdata->dysymtab == NULL) |
1682 | return 1; | |
dff55db0 | 1683 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1684 | * sizeof (arelent *); |
1685 | } | |
92bc0e80 | 1686 | |
b32e07d7 TG |
1687 | long |
1688 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
07d6d2b8 | 1689 | struct bfd_symbol **syms) |
b32e07d7 TG |
1690 | { |
1691 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1692 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1693 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1694 | unsigned long i; | |
1695 | arelent *res; | |
1696 | ||
1697 | if (dysymtab == NULL) | |
1698 | return 0; | |
1699 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1700 | return 0; | |
1701 | ||
1702 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1703 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 TG |
1704 | return 0; |
1705 | ||
dff55db0 | 1706 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1707 | { |
64d29018 NC |
1708 | if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent) |
1709 | < (dysymtab->nextrel + dysymtab->nlocrel)) | |
1710 | return -1; | |
1711 | ||
dff55db0 | 1712 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) |
07d6d2b8 | 1713 | * sizeof (arelent)); |
dff55db0 | 1714 | if (res == NULL) |
07d6d2b8 | 1715 | return -1; |
b32e07d7 | 1716 | |
dff55db0 | 1717 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
07d6d2b8 AM |
1718 | dysymtab->nextrel, res, syms) < 0) |
1719 | { | |
1720 | free (res); | |
1721 | return -1; | |
1722 | } | |
dff55db0 TG |
1723 | |
1724 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
07d6d2b8 AM |
1725 | dysymtab->nlocrel, |
1726 | res + dysymtab->nextrel, syms) < 0) | |
1727 | { | |
1728 | free (res); | |
1729 | return -1; | |
1730 | } | |
dff55db0 TG |
1731 | |
1732 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1733 | } |
1734 | ||
dff55db0 | 1735 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1736 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1737 | rels[i] = &res[i]; | |
1738 | rels[i] = NULL; | |
92bc0e80 TG |
1739 | return i; |
1740 | } | |
1741 | ||
19765f52 IS |
1742 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1743 | of the fields in the relocation information vary per target endian-ness. */ | |
1744 | ||
1745 | static void | |
1746 | bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields, | |
c6643fcc | 1747 | bfd_mach_o_reloc_info *rel) |
19765f52 IS |
1748 | { |
1749 | unsigned char info = 0; | |
1750 | ||
1751 | BFD_ASSERT (rel->r_type <= 15); | |
1752 | BFD_ASSERT (rel->r_length <= 3); | |
1753 | ||
1754 | if (bfd_big_endian (abfd)) | |
1755 | { | |
1756 | fields[0] = (rel->r_value >> 16) & 0xff; | |
1757 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1758 | fields[2] = rel->r_value & 0xff; | |
1759 | info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT; | |
1760 | info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0; | |
1761 | info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT; | |
1762 | info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0; | |
1763 | } | |
1764 | else | |
1765 | { | |
1766 | fields[2] = (rel->r_value >> 16) & 0xff; | |
1767 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1768 | fields[0] = rel->r_value & 0xff; | |
1769 | info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT; | |
1770 | info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0; | |
1771 | info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT; | |
1772 | info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0; | |
1773 | } | |
1774 | fields[3] = info; | |
1775 | } | |
1776 | ||
92bc0e80 | 1777 | static bfd_boolean |
ab273af8 | 1778 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1779 | { |
92bc0e80 TG |
1780 | unsigned int i; |
1781 | arelent **entries; | |
1782 | asection *sec; | |
1783 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1784 | ||
1785 | sec = section->bfdsection; | |
1786 | if (sec->reloc_count == 0) | |
1787 | return TRUE; | |
1788 | ||
1789 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1790 | return TRUE; | |
1791 | ||
92bc0e80 TG |
1792 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
1793 | return FALSE; | |
1794 | ||
1795 | /* Convert and write. */ | |
1796 | entries = section->bfdsection->orelocation; | |
1797 | for (i = 0; i < section->nreloc; i++) | |
1798 | { | |
1799 | arelent *rel = entries[i]; | |
46d1c23b | 1800 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1801 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1802 | ||
1803 | /* Convert relocation to an intermediate representation. */ | |
1804 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
07d6d2b8 | 1805 | return FALSE; |
92bc0e80 TG |
1806 | |
1807 | /* Lower the relocation info. */ | |
1808 | if (pinfo->r_scattered) | |
07d6d2b8 AM |
1809 | { |
1810 | unsigned long v; | |
1811 | ||
1812 | v = BFD_MACH_O_SR_SCATTERED | |
1813 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1814 | | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length) | |
1815 | | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type) | |
1816 | | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address); | |
1817 | /* Note: scattered relocs have field in reverse order... */ | |
1818 | bfd_put_32 (abfd, v, raw.r_address); | |
1819 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
1820 | } | |
92bc0e80 | 1821 | else |
07d6d2b8 AM |
1822 | { |
1823 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); | |
1824 | bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum, | |
19765f52 | 1825 | pinfo); |
07d6d2b8 | 1826 | } |
92bc0e80 | 1827 | |
46d1c23b | 1828 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
07d6d2b8 AM |
1829 | != BFD_MACH_O_RELENT_SIZE) |
1830 | return FALSE; | |
92bc0e80 TG |
1831 | } |
1832 | return TRUE; | |
1833 | } | |
1834 | ||
452216ab | 1835 | static bfd_boolean |
ab273af8 | 1836 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1837 | { |
46d1c23b TG |
1838 | struct mach_o_section_32_external raw; |
1839 | ||
1840 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1841 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1842 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1843 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1844 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1845 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1846 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1847 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1848 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1849 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1850 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1851 | ||
1852 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1853 | != BFD_MACH_O_SECTION_SIZE) |
452216ab | 1854 | return FALSE; |
116c20d2 | 1855 | |
452216ab | 1856 | return TRUE; |
116c20d2 NC |
1857 | } |
1858 | ||
452216ab | 1859 | static bfd_boolean |
ab273af8 | 1860 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1861 | { |
46d1c23b TG |
1862 | struct mach_o_section_64_external raw; |
1863 | ||
1864 | memcpy (raw.sectname, section->sectname, 16); | |
1865 | memcpy (raw.segname, section->segname, 16); | |
1866 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1867 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1868 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1869 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1870 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1871 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1872 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1873 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1874 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1875 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1876 | ||
1877 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1878 | != BFD_MACH_O_SECTION_64_SIZE) |
452216ab | 1879 | return FALSE; |
116c20d2 | 1880 | |
452216ab | 1881 | return TRUE; |
1e8a024a TG |
1882 | } |
1883 | ||
452216ab | 1884 | static bfd_boolean |
ab273af8 | 1885 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1886 | { |
46d1c23b | 1887 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1888 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1889 | bfd_mach_o_section *sec; |
1e8a024a | 1890 | |
c2f09c75 TG |
1891 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1892 | ||
f1bde64c TG |
1893 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1894 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1895 | return FALSE; |
c2f09c75 | 1896 | |
46d1c23b TG |
1897 | memcpy (raw.segname, seg->segname, 16); |
1898 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1899 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1900 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1901 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1902 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1903 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1904 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1905 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
68ffbac6 | 1906 | |
46d1c23b TG |
1907 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1908 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1909 | return FALSE; |
1e8a024a | 1910 | |
f1bde64c | 1911 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1912 | if (!bfd_mach_o_write_section_32 (abfd, sec)) |
1913 | return FALSE; | |
1e8a024a | 1914 | |
452216ab | 1915 | return TRUE; |
116c20d2 NC |
1916 | } |
1917 | ||
452216ab | 1918 | static bfd_boolean |
ab273af8 | 1919 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1920 | { |
46d1c23b | 1921 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1922 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1923 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1924 | |
1925 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1926 | ||
f1bde64c TG |
1927 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1928 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1929 | return FALSE; |
c2f09c75 | 1930 | |
46d1c23b TG |
1931 | memcpy (raw.segname, seg->segname, 16); |
1932 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1933 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1934 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1935 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1936 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1937 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1938 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1939 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1940 | ||
1941 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1942 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1943 | return FALSE; |
c2f09c75 | 1944 | |
f1bde64c | 1945 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1946 | if (!bfd_mach_o_write_section_64 (abfd, sec)) |
1947 | return FALSE; | |
c2f09c75 | 1948 | |
452216ab | 1949 | return TRUE; |
1e8a024a TG |
1950 | } |
1951 | ||
c2f09c75 | 1952 | static bfd_boolean |
c9ffd2ea | 1953 | bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym) |
116c20d2 | 1954 | { |
046b007d | 1955 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1956 | unsigned long i; |
c2f09c75 | 1957 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
c2f09c75 TG |
1958 | struct bfd_strtab_hash *strtab; |
1959 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
c9ffd2ea | 1960 | int padlen; |
c2f09c75 TG |
1961 | |
1962 | /* Write the symbols first. */ | |
1963 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) | |
1964 | return FALSE; | |
1965 | ||
c2f09c75 TG |
1966 | strtab = _bfd_stringtab_init (); |
1967 | if (strtab == NULL) | |
1968 | return FALSE; | |
116c20d2 | 1969 | |
a4551119 TG |
1970 | if (sym->nsyms > 0) |
1971 | /* Although we don't strictly need to do this, for compatibility with | |
1972 | Darwin system tools, actually output an empty string for the index | |
1973 | 0 entry. */ | |
1974 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
1975 | ||
116c20d2 NC |
1976 | for (i = 0; i < sym->nsyms; i++) |
1977 | { | |
91d6fa6a | 1978 | bfd_size_type str_index; |
92bc0e80 | 1979 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
68ffbac6 | 1980 | |
92bc0e80 | 1981 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 1982 | /* An index of 0 always means the empty string. */ |
07d6d2b8 | 1983 | str_index = 0; |
c2f09c75 | 1984 | else |
07d6d2b8 AM |
1985 | { |
1986 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); | |
7f307238 | 1987 | |
07d6d2b8 AM |
1988 | if (str_index == (bfd_size_type) -1) |
1989 | goto err; | |
1990 | } | |
46d1c23b | 1991 | |
c2f09c75 | 1992 | if (wide) |
07d6d2b8 AM |
1993 | { |
1994 | struct mach_o_nlist_64_external raw; | |
1995 | ||
1996 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
1997 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1998 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1999 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2000 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
2001 | raw.n_value); | |
2002 | ||
2003 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2004 | goto err; | |
2005 | } | |
c2f09c75 | 2006 | else |
07d6d2b8 AM |
2007 | { |
2008 | struct mach_o_nlist_external raw; | |
116c20d2 | 2009 | |
07d6d2b8 AM |
2010 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
2011 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
2012 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
2013 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2014 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
2015 | raw.n_value); | |
46d1c23b | 2016 | |
07d6d2b8 AM |
2017 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
2018 | goto err; | |
2019 | } | |
116c20d2 | 2020 | } |
c2f09c75 | 2021 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
2022 | sym->stroff = mdata->filelen; |
2023 | mdata->filelen += sym->strsize; | |
116c20d2 | 2024 | |
c9ffd2ea | 2025 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
64d29018 | 2026 | goto err; |
c9ffd2ea | 2027 | |
535b785f | 2028 | if (!_bfd_stringtab_emit (abfd, strtab)) |
c2f09c75 | 2029 | goto err; |
116c20d2 | 2030 | |
c9ffd2ea TG |
2031 | /* Pad string table. */ |
2032 | padlen = bfd_mach_o_pad4 (abfd, sym->strsize); | |
2033 | if (padlen < 0) | |
2034 | return FALSE; | |
2035 | mdata->filelen += padlen; | |
2036 | sym->strsize += padlen; | |
116c20d2 | 2037 | |
c2f09c75 | 2038 | return TRUE; |
116c20d2 | 2039 | |
c2f09c75 TG |
2040 | err: |
2041 | _bfd_stringtab_free (strtab); | |
64d29018 | 2042 | sym->strsize = 0; |
c2f09c75 | 2043 | return FALSE; |
116c20d2 NC |
2044 | } |
2045 | ||
c9ffd2ea TG |
2046 | static bfd_boolean |
2047 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2048 | { | |
2049 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
2050 | struct mach_o_symtab_command_external raw; | |
2051 | ||
2052 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
2053 | ||
2054 | /* The command. */ | |
2055 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); | |
2056 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
2057 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
2058 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
2059 | ||
2060 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
2061 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2062 | return FALSE; | |
2063 | ||
2064 | return TRUE; | |
2065 | } | |
2066 | ||
2067 | /* Count the number of indirect symbols in the image. | |
2068 | Requires that the sections are in their final order. */ | |
2069 | ||
2070 | static unsigned int | |
2071 | bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2072 | { | |
2073 | unsigned int i; | |
2074 | unsigned int nisyms = 0; | |
2075 | ||
2076 | for (i = 0; i < mdata->nsects; ++i) | |
2077 | { | |
2078 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2079 | ||
2080 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2081 | { | |
2082 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2083 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2084 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2085 | nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2086 | break; | |
2087 | default: | |
2088 | break; | |
2089 | } | |
2090 | } | |
2091 | return nisyms; | |
2092 | } | |
2093 | ||
2094 | /* Create the dysymtab. */ | |
2095 | ||
2096 | static bfd_boolean | |
2097 | bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd) | |
2098 | { | |
2099 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2100 | ||
2101 | /* TODO: | |
2102 | We are not going to try and fill these in yet and, moreover, we are | |
2103 | going to bail if they are already set. */ | |
2104 | if (cmd->nmodtab != 0 | |
2105 | || cmd->ntoc != 0 | |
2106 | || cmd->nextrefsyms != 0) | |
2107 | { | |
4eca0228 AM |
2108 | _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet" |
2109 | " implemented for dysymtab commands.")); | |
c9ffd2ea TG |
2110 | return FALSE; |
2111 | } | |
2112 | ||
2113 | cmd->ilocalsym = 0; | |
2114 | ||
2115 | if (bfd_get_symcount (abfd) > 0) | |
2116 | { | |
2117 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2118 | unsigned long i; | |
2119 | ||
2120 | /* Count the number of each kind of symbol. */ | |
2121 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
2122 | { | |
2123 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2124 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
2125 | break; | |
2126 | } | |
2127 | cmd->nlocalsym = i; | |
2128 | cmd->iextdefsym = i; | |
2129 | for (; i < bfd_get_symcount (abfd); ++i) | |
2130 | { | |
2131 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2132 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
2133 | break; | |
2134 | } | |
2135 | cmd->nextdefsym = i - cmd->nlocalsym; | |
2136 | cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym; | |
2137 | cmd->nundefsym = bfd_get_symcount (abfd) | |
2138 | - cmd->nlocalsym | |
2139 | - cmd->nextdefsym; | |
2140 | } | |
2141 | else | |
2142 | { | |
2143 | cmd->nlocalsym = 0; | |
2144 | cmd->iextdefsym = 0; | |
2145 | cmd->nextdefsym = 0; | |
2146 | cmd->iundefsym = 0; | |
2147 | cmd->nundefsym = 0; | |
2148 | } | |
2149 | ||
2150 | cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata); | |
2151 | if (cmd->nindirectsyms > 0) | |
2152 | { | |
2153 | unsigned i; | |
2154 | unsigned n; | |
2155 | ||
2156 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2157 | cmd->indirectsymoff = mdata->filelen; | |
2158 | mdata->filelen += cmd->nindirectsyms * 4; | |
2159 | ||
64d29018 NC |
2160 | if (cmd->nindirectsyms * 4 < cmd->nindirectsyms) |
2161 | return FALSE; | |
c9ffd2ea TG |
2162 | cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4); |
2163 | if (cmd->indirect_syms == NULL) | |
07d6d2b8 | 2164 | return FALSE; |
c9ffd2ea TG |
2165 | |
2166 | n = 0; | |
2167 | for (i = 0; i < mdata->nsects; ++i) | |
2168 | { | |
2169 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2170 | ||
2171 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2172 | { | |
2173 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2174 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2175 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2176 | { | |
2177 | unsigned j, num; | |
2178 | bfd_mach_o_asymbol **isyms = sec->indirect_syms; | |
2179 | ||
2180 | num = bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2181 | if (isyms == NULL || num == 0) | |
2182 | break; | |
2183 | /* Record the starting index in the reserved1 field. */ | |
2184 | sec->reserved1 = n; | |
2185 | for (j = 0; j < num; j++, n++) | |
2186 | { | |
2187 | if (isyms[j] == NULL) | |
07d6d2b8 | 2188 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL; |
c9ffd2ea TG |
2189 | else if (isyms[j]->symbol.section == bfd_abs_section_ptr |
2190 | && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT)) | |
07d6d2b8 | 2191 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL |
c9ffd2ea TG |
2192 | | BFD_MACH_O_INDIRECT_SYM_ABS; |
2193 | else | |
07d6d2b8 | 2194 | cmd->indirect_syms[n] = isyms[j]->symbol.udata.i; |
c9ffd2ea TG |
2195 | } |
2196 | } | |
2197 | break; | |
2198 | default: | |
2199 | break; | |
2200 | } | |
2201 | } | |
2202 | } | |
2203 | ||
2204 | return TRUE; | |
2205 | } | |
2206 | ||
7f307238 IS |
2207 | /* Write a dysymtab command. |
2208 | TODO: Possibly coalesce writes of smaller objects. */ | |
2209 | ||
2210 | static bfd_boolean | |
2211 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2212 | { | |
2213 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
2214 | ||
2215 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
2216 | ||
2217 | if (cmd->nmodtab != 0) | |
2218 | { | |
2219 | unsigned int i; | |
2220 | ||
2221 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
2222 | return FALSE; | |
2223 | ||
2224 | for (i = 0; i < cmd->nmodtab; i++) | |
2225 | { | |
2226 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
2227 | unsigned int iinit; | |
2228 | unsigned int ninit; | |
2229 | ||
2230 | iinit = module->iinit & 0xffff; | |
2231 | iinit |= ((module->iterm & 0xffff) << 16); | |
2232 | ||
2233 | ninit = module->ninit & 0xffff; | |
2234 | ninit |= ((module->nterm & 0xffff) << 16); | |
2235 | ||
2236 | if (bfd_mach_o_wide_p (abfd)) | |
2237 | { | |
2238 | struct mach_o_dylib_module_64_external w; | |
2239 | ||
2240 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
2241 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
2242 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
2243 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
2244 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
2245 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
2246 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
2247 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
2248 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
2249 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
2250 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
2251 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
2252 | &w.objc_module_info_addr); | |
2253 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2254 | &w.objc_module_info_size); | |
2255 | ||
2256 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
2257 | return FALSE; | |
2258 | } | |
2259 | else | |
2260 | { | |
2261 | struct mach_o_dylib_module_external n; | |
2262 | ||
2263 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
2264 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
2265 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
2266 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
2267 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
2268 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
2269 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
2270 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
2271 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
2272 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
2273 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
2274 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
2275 | &n.objc_module_info_addr); | |
2276 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2277 | &n.objc_module_info_size); | |
2278 | ||
2279 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
2280 | return FALSE; | |
2281 | } | |
2282 | } | |
2283 | } | |
2284 | ||
2285 | if (cmd->ntoc != 0) | |
2286 | { | |
2287 | unsigned int i; | |
2288 | ||
2289 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
2290 | return FALSE; | |
2291 | ||
2292 | for (i = 0; i < cmd->ntoc; i++) | |
2293 | { | |
2294 | struct mach_o_dylib_table_of_contents_external raw; | |
2295 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
2296 | ||
2297 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
2298 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
2299 | ||
2300 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2301 | return FALSE; | |
2302 | } | |
2303 | } | |
68ffbac6 | 2304 | |
7f307238 IS |
2305 | if (cmd->nindirectsyms > 0) |
2306 | { | |
2307 | unsigned int i; | |
2308 | ||
2309 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
2310 | return FALSE; | |
2311 | ||
2312 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
2313 | { | |
2314 | unsigned char raw[4]; | |
2315 | ||
2316 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
2317 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2318 | return FALSE; | |
68ffbac6 | 2319 | } |
7f307238 IS |
2320 | } |
2321 | ||
2322 | if (cmd->nextrefsyms != 0) | |
2323 | { | |
2324 | unsigned int i; | |
2325 | ||
2326 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
2327 | return FALSE; | |
2328 | ||
2329 | for (i = 0; i < cmd->nextrefsyms; i++) | |
2330 | { | |
2331 | unsigned long v; | |
2332 | unsigned char raw[4]; | |
2333 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
2334 | ||
2335 | /* Fields isym and flags are written as bit-fields, thus we need | |
2336 | a specific processing for endianness. */ | |
2337 | ||
2338 | if (bfd_big_endian (abfd)) | |
2339 | { | |
2340 | v = ((ref->isym & 0xffffff) << 8); | |
2341 | v |= ref->flags & 0xff; | |
2342 | } | |
2343 | else | |
2344 | { | |
2345 | v = ref->isym & 0xffffff; | |
2346 | v |= ((ref->flags & 0xff) << 24); | |
2347 | } | |
2348 | ||
2349 | bfd_h_put_32 (abfd, v, raw); | |
2350 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2351 | return FALSE; | |
2352 | } | |
2353 | } | |
2354 | ||
2355 | /* The command. */ | |
2356 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
2357 | return FALSE; | |
2358 | else | |
2359 | { | |
2360 | struct mach_o_dysymtab_command_external raw; | |
2361 | ||
2362 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
2363 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
2364 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
2365 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
2366 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
2367 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
2368 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
2369 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
2370 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
2371 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
2372 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
2373 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
2374 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
2375 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
2376 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
2377 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
2378 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
2379 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
2380 | ||
2381 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2382 | return FALSE; | |
2383 | } | |
2384 | ||
2385 | return TRUE; | |
2386 | } | |
2387 | ||
2388 | static unsigned | |
b22161d6 | 2389 | bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s) |
7f307238 | 2390 | { |
b22161d6 | 2391 | unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE; |
68588f95 IS |
2392 | |
2393 | /* Just leave debug symbols where they are (pretend they are local, and | |
2394 | then they will just be sorted on position). */ | |
b22161d6 | 2395 | if (s->n_type & BFD_MACH_O_N_STAB) |
68588f95 IS |
2396 | return 0; |
2397 | ||
7f307238 | 2398 | /* Local (we should never see an undefined local AFAICT). */ |
b22161d6 | 2399 | if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
2400 | return 0; |
2401 | ||
2402 | /* Common symbols look like undefined externs. */ | |
68588f95 | 2403 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
2404 | return 2; |
2405 | ||
b22161d6 | 2406 | /* A defined non-local, non-debug symbol. */ |
7f307238 IS |
2407 | return 1; |
2408 | } | |
2409 | ||
2410 | static int | |
2411 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
2412 | { | |
2413 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
2414 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
2415 | unsigned int soa, sob; | |
2416 | ||
b22161d6 IS |
2417 | soa = bfd_mach_o_primary_symbol_sort_key (sa); |
2418 | sob = bfd_mach_o_primary_symbol_sort_key (sb); | |
7f307238 IS |
2419 | if (soa < sob) |
2420 | return -1; | |
2421 | ||
2422 | if (soa > sob) | |
2423 | return 1; | |
2424 | ||
68588f95 | 2425 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
2426 | if (soa == 0) |
2427 | { | |
2428 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
07d6d2b8 | 2429 | return -1; |
7f307238 | 2430 | if (sa->symbol.udata.i > sb->symbol.udata.i) |
07d6d2b8 | 2431 | return 1; |
b22161d6 IS |
2432 | |
2433 | /* This is probably an error. */ | |
7f307238 IS |
2434 | return 0; |
2435 | } | |
2436 | ||
b22161d6 IS |
2437 | /* The second sort key is name. */ |
2438 | return strcmp (sa->symbol.name, sb->symbol.name); | |
7f307238 IS |
2439 | } |
2440 | ||
2441 | /* Process the symbols. | |
2442 | ||
2443 | This should be OK for single-module files - but it is not likely to work | |
2444 | for multi-module shared libraries. | |
2445 | ||
2446 | (a) If the application has not filled in the relevant mach-o fields, make | |
2447 | an estimate. | |
2448 | ||
2449 | (b) Order them, like this: | |
2450 | ( i) local. | |
2451 | (unsorted) | |
2452 | ( ii) external defined | |
2453 | (by name) | |
b22161d6 | 2454 | (iii) external undefined/common |
7f307238 IS |
2455 | (by name) |
2456 | ( iv) common | |
2457 | (by name) | |
b22161d6 | 2458 | */ |
92bc0e80 TG |
2459 | |
2460 | static bfd_boolean | |
b22161d6 | 2461 | bfd_mach_o_mangle_symbols (bfd *abfd) |
92bc0e80 TG |
2462 | { |
2463 | unsigned long i; | |
2464 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2465 | ||
7f307238 IS |
2466 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
2467 | return TRUE; | |
2468 | ||
92bc0e80 TG |
2469 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
2470 | { | |
2471 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2472 | ||
b22161d6 IS |
2473 | /* We use this value, which is out-of-range as a symbol index, to signal |
2474 | that the mach-o-specific data are not filled in and need to be created | |
2475 | from the bfd values. It is much preferable for the application to do | |
2476 | this, since more meaningful diagnostics can be made that way. */ | |
2477 | ||
2478 | if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET) | |
07d6d2b8 AM |
2479 | { |
2480 | /* No symbol information has been set - therefore determine | |
2481 | it from the bfd symbol flags/info. */ | |
2482 | if (s->symbol.section == bfd_abs_section_ptr) | |
2483 | s->n_type = BFD_MACH_O_N_ABS; | |
2484 | else if (s->symbol.section == bfd_und_section_ptr) | |
2485 | { | |
2486 | s->n_type = BFD_MACH_O_N_UNDF; | |
2487 | if (s->symbol.flags & BSF_WEAK) | |
2488 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
2489 | /* mach-o automatically makes undefined symbols extern. */ | |
7f307238 | 2490 | s->n_type |= BFD_MACH_O_N_EXT; |
b22161d6 | 2491 | s->symbol.flags |= BSF_GLOBAL; |
07d6d2b8 AM |
2492 | } |
2493 | else if (s->symbol.section == bfd_com_section_ptr) | |
b22161d6 | 2494 | { |
07d6d2b8 AM |
2495 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; |
2496 | s->symbol.flags |= BSF_GLOBAL; | |
2497 | } | |
2498 | else | |
2499 | s->n_type = BFD_MACH_O_N_SECT; | |
68ffbac6 | 2500 | |
07d6d2b8 AM |
2501 | if (s->symbol.flags & BSF_GLOBAL) |
2502 | s->n_type |= BFD_MACH_O_N_EXT; | |
2503 | } | |
92bc0e80 | 2504 | |
7f307238 | 2505 | /* Put the section index in, where required. */ |
68588f95 | 2506 | if ((s->symbol.section != bfd_abs_section_ptr |
07d6d2b8 AM |
2507 | && s->symbol.section != bfd_und_section_ptr |
2508 | && s->symbol.section != bfd_com_section_ptr) | |
2509 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 | |
2510 | && s->symbol.name == NULL)) | |
707e555b | 2511 | s->n_sect = s->symbol.section->output_section->target_index; |
92bc0e80 | 2512 | |
b22161d6 IS |
2513 | /* Number to preserve order for local and debug syms. */ |
2514 | s->symbol.udata.i = i; | |
7f307238 IS |
2515 | } |
2516 | ||
b22161d6 IS |
2517 | /* Sort the symbols. */ |
2518 | qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd), | |
2519 | sizeof (asymbol *), bfd_mach_o_cf_symbols); | |
7f307238 | 2520 | |
b22161d6 IS |
2521 | for (i = 0; i < bfd_get_symcount (abfd); ++i) |
2522 | { | |
2523 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2524 | s->symbol.udata.i = i; /* renumber. */ | |
7f307238 IS |
2525 | } |
2526 | ||
2527 | return TRUE; | |
2528 | } | |
2529 | ||
2530 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
2531 | Fill in the section number and other mach-o-specific data. */ | |
2532 | ||
2533 | static bfd_boolean | |
2534 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2535 | { | |
2536 | asection *sec; | |
2537 | unsigned target_index; | |
2538 | unsigned nsect; | |
2539 | ||
2540 | nsect = bfd_count_sections (abfd); | |
68ffbac6 | 2541 | |
7f307238 IS |
2542 | /* Don't do it if it's already set - assume the application knows what it's |
2543 | doing. */ | |
2544 | if (mdata->nsects == nsect | |
2545 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
2546 | return TRUE; | |
2547 | ||
a1165289 NC |
2548 | /* We need to check that this can be done... */ |
2549 | if (nsect > 255) | |
2550 | { | |
4eca0228 AM |
2551 | _bfd_error_handler (_("mach-o: there are too many sections (%u)" |
2552 | " maximum is 255,\n"), nsect); | |
a1165289 NC |
2553 | return FALSE; |
2554 | } | |
2555 | ||
7f307238 | 2556 | mdata->nsects = nsect; |
64d29018 NC |
2557 | mdata->sections = bfd_alloc2 (abfd, |
2558 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
7f307238 IS |
2559 | if (mdata->sections == NULL) |
2560 | return FALSE; | |
2561 | ||
7f307238 | 2562 | /* Create Mach-O sections. |
68ffbac6 | 2563 | Section type, attribute and align should have been set when the |
7f307238 IS |
2564 | section was created - either read in or specified. */ |
2565 | target_index = 0; | |
2566 | for (sec = abfd->sections; sec; sec = sec->next) | |
2567 | { | |
2568 | unsigned bfd_align = bfd_get_section_alignment (abfd, sec); | |
2569 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); | |
2570 | ||
2571 | mdata->sections[target_index] = msect; | |
2572 | ||
2573 | msect->addr = bfd_get_section_vma (abfd, sec); | |
2574 | msect->size = bfd_get_section_size (sec); | |
2575 | ||
68ffbac6 | 2576 | /* Use the largest alignment set, in case it was bumped after the |
7f307238 IS |
2577 | section was created. */ |
2578 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
2579 | ||
2580 | msect->offset = 0; | |
2581 | sec->target_index = ++target_index; | |
92bc0e80 | 2582 | } |
7f307238 | 2583 | |
92bc0e80 TG |
2584 | return TRUE; |
2585 | } | |
2586 | ||
154a1ee5 | 2587 | bfd_boolean |
116c20d2 | 2588 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b | 2589 | { |
046b007d | 2590 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
2591 | bfd_mach_o_load_command *cmd; |
2592 | bfd_mach_o_symtab_command *symtab = NULL; | |
2593 | bfd_mach_o_dysymtab_command *dysymtab = NULL; | |
2594 | bfd_mach_o_segment_command *linkedit = NULL; | |
3af9a47b | 2595 | |
7f307238 | 2596 | /* Make the commands, if not already present. */ |
c9ffd2ea TG |
2597 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
2598 | return FALSE; | |
2599 | abfd->output_has_begun = TRUE; | |
92bc0e80 | 2600 | |
c9ffd2ea | 2601 | /* Write the header. */ |
154a1ee5 | 2602 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 2603 | return FALSE; |
3af9a47b | 2604 | |
c9ffd2ea TG |
2605 | /* First pass: allocate the linkedit segment. */ |
2606 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
2607 | switch (cmd->type) | |
2608 | { | |
2609 | case BFD_MACH_O_LC_SEGMENT_64: | |
2610 | case BFD_MACH_O_LC_SEGMENT: | |
2611 | if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0) | |
2612 | linkedit = &cmd->command.segment; | |
2613 | break; | |
2614 | case BFD_MACH_O_LC_SYMTAB: | |
2615 | symtab = &cmd->command.symtab; | |
2616 | break; | |
2617 | case BFD_MACH_O_LC_DYSYMTAB: | |
2618 | dysymtab = &cmd->command.dysymtab; | |
2619 | break; | |
2620 | case BFD_MACH_O_LC_DYLD_INFO: | |
2621 | { | |
2622 | bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info; | |
2623 | ||
2624 | if (di->rebase_size != 0) | |
2625 | { | |
2626 | di->rebase_off = mdata->filelen; | |
2627 | mdata->filelen += di->rebase_size; | |
2628 | } | |
2629 | if (di->bind_size != 0) | |
2630 | { | |
2631 | di->bind_off = mdata->filelen; | |
2632 | mdata->filelen += di->bind_size; | |
2633 | } | |
2634 | if (di->weak_bind_size != 0) | |
2635 | { | |
2636 | di->weak_bind_off = mdata->filelen; | |
2637 | mdata->filelen += di->weak_bind_size; | |
2638 | } | |
2639 | if (di->lazy_bind_size != 0) | |
2640 | { | |
2641 | di->lazy_bind_off = mdata->filelen; | |
2642 | mdata->filelen += di->lazy_bind_size; | |
2643 | } | |
2644 | if (di->export_size != 0) | |
2645 | { | |
2646 | di->export_off = mdata->filelen; | |
2647 | mdata->filelen += di->export_size; | |
2648 | } | |
2649 | } | |
2650 | break; | |
2651 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2652 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2653 | case BFD_MACH_O_LC_MAIN: | |
2654 | /* Nothing to do. */ | |
2655 | break; | |
2656 | default: | |
4eca0228 | 2657 | _bfd_error_handler |
d42c267e AM |
2658 | (_("unable to allocate data for load command %#x"), |
2659 | cmd->type); | |
c9ffd2ea TG |
2660 | break; |
2661 | } | |
2662 | ||
2663 | /* Specially handle symtab and dysymtab. */ | |
2664 | ||
2665 | /* Pre-allocate the symbol table (but not the string table). The reason | |
2666 | is that the dysymtab is after the symbol table but before the string | |
2667 | table (required by the native strip tool). */ | |
2668 | if (symtab != NULL) | |
2669 | { | |
2670 | unsigned int symlen; | |
2671 | unsigned int wide = bfd_mach_o_wide_p (abfd); | |
2672 | ||
2673 | symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
2674 | ||
2675 | /* Align for symbols. */ | |
2676 | mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2); | |
2677 | symtab->symoff = mdata->filelen; | |
2678 | ||
2679 | symtab->nsyms = bfd_get_symcount (abfd); | |
2680 | mdata->filelen += symtab->nsyms * symlen; | |
2681 | } | |
2682 | ||
2683 | /* Build the dysymtab. */ | |
2684 | if (dysymtab != NULL) | |
2685 | if (!bfd_mach_o_build_dysymtab (abfd, dysymtab)) | |
2686 | return FALSE; | |
2687 | ||
2688 | /* Write symtab and strtab. */ | |
2689 | if (symtab != NULL) | |
2690 | if (!bfd_mach_o_write_symtab_content (abfd, symtab)) | |
2691 | return FALSE; | |
2692 | ||
2693 | /* Adjust linkedit size. */ | |
2694 | if (linkedit != NULL) | |
2695 | { | |
2696 | /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */ | |
2697 | ||
2698 | linkedit->vmsize = mdata->filelen - linkedit->fileoff; | |
2699 | /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */ | |
2700 | linkedit->filesize = mdata->filelen - linkedit->fileoff; | |
2701 | ||
2702 | linkedit->initprot = BFD_MACH_O_PROT_READ; | |
2703 | linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2704 | | BFD_MACH_O_PROT_EXECUTE; | |
2705 | } | |
2706 | ||
2707 | /* Second pass: write commands. */ | |
2708 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
3af9a47b | 2709 | { |
46d1c23b | 2710 | struct mach_o_load_command_external raw; |
3af9a47b NC |
2711 | unsigned long typeflag; |
2712 | ||
c9ffd2ea | 2713 | typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 2714 | |
46d1c23b | 2715 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
c9ffd2ea | 2716 | bfd_h_put_32 (abfd, cmd->len, raw.cmdsize); |
3af9a47b | 2717 | |
c9ffd2ea | 2718 | if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0 |
07d6d2b8 | 2719 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 2720 | return FALSE; |
3af9a47b | 2721 | |
c9ffd2ea | 2722 | switch (cmd->type) |
3af9a47b NC |
2723 | { |
2724 | case BFD_MACH_O_LC_SEGMENT: | |
c9ffd2ea | 2725 | if (!bfd_mach_o_write_segment_32 (abfd, cmd)) |
1e8a024a TG |
2726 | return FALSE; |
2727 | break; | |
2728 | case BFD_MACH_O_LC_SEGMENT_64: | |
c9ffd2ea | 2729 | if (!bfd_mach_o_write_segment_64 (abfd, cmd)) |
b34976b6 | 2730 | return FALSE; |
3af9a47b NC |
2731 | break; |
2732 | case BFD_MACH_O_LC_SYMTAB: | |
c9ffd2ea | 2733 | if (!bfd_mach_o_write_symtab (abfd, cmd)) |
b34976b6 | 2734 | return FALSE; |
3af9a47b | 2735 | break; |
7f307238 | 2736 | case BFD_MACH_O_LC_DYSYMTAB: |
c9ffd2ea | 2737 | if (!bfd_mach_o_write_dysymtab (abfd, cmd)) |
7f307238 IS |
2738 | return FALSE; |
2739 | break; | |
3af9a47b NC |
2740 | case BFD_MACH_O_LC_THREAD: |
2741 | case BFD_MACH_O_LC_UNIXTHREAD: | |
c9ffd2ea | 2742 | if (!bfd_mach_o_write_thread (abfd, cmd)) |
b34976b6 | 2743 | return FALSE; |
3af9a47b | 2744 | break; |
3af9a47b | 2745 | case BFD_MACH_O_LC_LOAD_DYLIB: |
c9ffd2ea TG |
2746 | if (!bfd_mach_o_write_dylib (abfd, cmd)) |
2747 | return FALSE; | |
2748 | break; | |
3af9a47b | 2749 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
c9ffd2ea TG |
2750 | if (!bfd_mach_o_write_dylinker (abfd, cmd)) |
2751 | return FALSE; | |
2752 | break; | |
2753 | case BFD_MACH_O_LC_MAIN: | |
2754 | if (!bfd_mach_o_write_main (abfd, cmd)) | |
2755 | return FALSE; | |
2756 | break; | |
2757 | case BFD_MACH_O_LC_DYLD_INFO: | |
2758 | if (!bfd_mach_o_write_dyld_info (abfd, cmd)) | |
2759 | return FALSE; | |
3af9a47b NC |
2760 | break; |
2761 | default: | |
4eca0228 | 2762 | _bfd_error_handler |
d42c267e AM |
2763 | (_("unable to write unknown load command %#x"), |
2764 | cmd->type); | |
b34976b6 | 2765 | return FALSE; |
3af9a47b NC |
2766 | } |
2767 | } | |
2768 | ||
b34976b6 | 2769 | return TRUE; |
3af9a47b NC |
2770 | } |
2771 | ||
f1bde64c TG |
2772 | static void |
2773 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
07d6d2b8 | 2774 | bfd_mach_o_section *s) |
f1bde64c | 2775 | { |
f1bde64c TG |
2776 | if (seg->sect_head == NULL) |
2777 | seg->sect_head = s; | |
2778 | else | |
2779 | seg->sect_tail->next = s; | |
2780 | seg->sect_tail = s; | |
2781 | } | |
2782 | ||
2783 | /* Create section Mach-O flags from BFD flags. */ | |
2784 | ||
2785 | static void | |
3cc27770 TG |
2786 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, |
2787 | asection *sec) | |
f1bde64c TG |
2788 | { |
2789 | flagword bfd_flags; | |
2790 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2791 | ||
2792 | /* Create default flags. */ | |
2793 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
2794 | if ((bfd_flags & SEC_CODE) == SEC_CODE) | |
2795 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2796 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2797 | | BFD_MACH_O_S_REGULAR; | |
2798 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2799 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2800 | else if (bfd_flags & SEC_DEBUGGING) | |
2801 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2802 | else | |
2803 | s->flags = BFD_MACH_O_S_REGULAR; | |
2804 | } | |
2805 | ||
7f307238 | 2806 | static bfd_boolean |
c9ffd2ea | 2807 | bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) |
7f307238 | 2808 | { |
c9ffd2ea TG |
2809 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2810 | unsigned int i, j; | |
7f307238 | 2811 | |
7f307238 | 2812 | seg->vmaddr = 0; |
7f307238 | 2813 | seg->fileoff = mdata->filelen; |
c9ffd2ea TG |
2814 | seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE |
2815 | | BFD_MACH_O_PROT_EXECUTE; | |
2816 | seg->maxprot = seg->initprot; | |
7f307238 | 2817 | |
68ffbac6 | 2818 | /* Append sections to the segment. |
09903f4b IS |
2819 | |
2820 | This is a little tedious, we have to honor the need to account zerofill | |
2821 | sections after all the rest. This forces us to do the calculation of | |
68ffbac6 | 2822 | total vmsize in three passes so that any alignment increments are |
09903f4b | 2823 | properly accounted. */ |
7f307238 IS |
2824 | for (i = 0; i < mdata->nsects; ++i) |
2825 | { | |
2826 | bfd_mach_o_section *s = mdata->sections[i]; | |
2827 | asection *sec = s->bfdsection; | |
2828 | ||
09903f4b IS |
2829 | /* Although we account for zerofill section sizes in vm order, they are |
2830 | placed in the file in source sequence. */ | |
c9ffd2ea | 2831 | bfd_mach_o_append_section_to_segment (seg, s); |
e5081f2f | 2832 | s->offset = 0; |
68ffbac6 | 2833 | |
c9ffd2ea TG |
2834 | /* Zerofill sections have zero file size & offset, the only content |
2835 | written to the file is the symbols. */ | |
e5081f2f | 2836 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL |
07d6d2b8 | 2837 | || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2838 | == BFD_MACH_O_S_GB_ZEROFILL)) |
07d6d2b8 | 2839 | continue; |
e5081f2f | 2840 | |
c9ffd2ea TG |
2841 | /* The Darwin system tools (in MH_OBJECT files, at least) always account |
2842 | sections, even those with zero size. */ | |
e5081f2f | 2843 | if (s->size > 0) |
c9ffd2ea | 2844 | { |
09903f4b IS |
2845 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); |
2846 | seg->vmsize += s->size; | |
2847 | ||
c9ffd2ea TG |
2848 | /* MH_OBJECT files have unaligned content. */ |
2849 | if (1) | |
2850 | { | |
2851 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
07d6d2b8 AM |
2852 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2853 | } | |
09903f4b IS |
2854 | seg->filesize += s->size; |
2855 | ||
c9ffd2ea TG |
2856 | /* The system tools write even zero-sized sections with an offset |
2857 | field set to the current file position. */ | |
07d6d2b8 | 2858 | s->offset = mdata->filelen; |
c9ffd2ea | 2859 | } |
7f307238 IS |
2860 | |
2861 | sec->filepos = s->offset; | |
7f307238 IS |
2862 | mdata->filelen += s->size; |
2863 | } | |
2864 | ||
3cc27770 | 2865 | /* Now pass through again, for zerofill, only now we just update the |
c9ffd2ea TG |
2866 | vmsize, and then for zerofill_GB. */ |
2867 | for (j = 0; j < 2; j++) | |
09903f4b | 2868 | { |
c9ffd2ea | 2869 | unsigned int stype; |
68ffbac6 | 2870 | |
c9ffd2ea TG |
2871 | if (j == 0) |
2872 | stype = BFD_MACH_O_S_ZEROFILL; | |
2873 | else | |
2874 | stype = BFD_MACH_O_S_GB_ZEROFILL; | |
09903f4b | 2875 | |
c9ffd2ea TG |
2876 | for (i = 0; i < mdata->nsects; ++i) |
2877 | { | |
2878 | bfd_mach_o_section *s = mdata->sections[i]; | |
2879 | ||
2880 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype) | |
2881 | continue; | |
2882 | ||
2883 | if (s->size > 0) | |
2884 | { | |
2885 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2886 | seg->vmsize += s->size; | |
2887 | } | |
09903f4b IS |
2888 | } |
2889 | } | |
bb76d940 | 2890 | |
09903f4b | 2891 | /* Allocate space for the relocations. */ |
707e555b | 2892 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); |
bb76d940 IS |
2893 | |
2894 | for (i = 0; i < mdata->nsects; ++i) | |
2895 | { | |
2896 | bfd_mach_o_section *ms = mdata->sections[i]; | |
2897 | asection *sec = ms->bfdsection; | |
68ffbac6 | 2898 | |
c9ffd2ea TG |
2899 | ms->nreloc = sec->reloc_count; |
2900 | if (ms->nreloc == 0) | |
07d6d2b8 | 2901 | { |
c9ffd2ea | 2902 | /* Clear nreloc and reloff if there is no relocs. */ |
bb76d940 IS |
2903 | ms->reloff = 0; |
2904 | continue; | |
07d6d2b8 | 2905 | } |
bb76d940 IS |
2906 | sec->rel_filepos = mdata->filelen; |
2907 | ms->reloff = sec->rel_filepos; | |
2908 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
2909 | } | |
7f307238 IS |
2910 | |
2911 | return TRUE; | |
2912 | } | |
2913 | ||
c9ffd2ea TG |
2914 | static bfd_boolean |
2915 | bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) | |
50d10658 | 2916 | { |
c9ffd2ea | 2917 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
50d10658 | 2918 | unsigned int i; |
c9ffd2ea TG |
2919 | bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; |
2920 | bfd_vma vma; | |
2921 | bfd_mach_o_section *s; | |
2922 | ||
2923 | seg->vmsize = 0; | |
50d10658 | 2924 | |
c9ffd2ea TG |
2925 | seg->fileoff = mdata->filelen; |
2926 | seg->maxprot = 0; | |
2927 | seg->initprot = 0; | |
2928 | seg->flags = 0; | |
2929 | ||
2930 | /* Append sections to the segment. We assume they are properly ordered | |
2931 | by vma (but we check that). */ | |
2932 | vma = 0; | |
50d10658 IS |
2933 | for (i = 0; i < mdata->nsects; ++i) |
2934 | { | |
c9ffd2ea | 2935 | s = mdata->sections[i]; |
50d10658 | 2936 | |
c9ffd2ea TG |
2937 | /* Consider only sections for this segment. */ |
2938 | if (strcmp (seg->segname, s->segname) != 0) | |
2939 | continue; | |
50d10658 | 2940 | |
c9ffd2ea | 2941 | bfd_mach_o_append_section_to_segment (seg, s); |
7f307238 | 2942 | |
86eafac0 NC |
2943 | if (s->addr < vma) |
2944 | { | |
4eca0228 | 2945 | _bfd_error_handler |
695344c0 | 2946 | /* xgettext:c-format */ |
2dcf00ce AM |
2947 | (_("section address (%#" PRIx64 ") " |
2948 | "below start of segment (%#" PRIx64 ")"), | |
2949 | (uint64_t) s->addr, (uint64_t) vma); | |
86eafac0 NC |
2950 | return FALSE; |
2951 | } | |
2952 | ||
c9ffd2ea | 2953 | vma = s->addr + s->size; |
7f307238 IS |
2954 | } |
2955 | ||
c9ffd2ea TG |
2956 | /* Set segment file offset: make it page aligned. */ |
2957 | vma = seg->sect_head->addr; | |
2958 | seg->vmaddr = vma & ~pagemask; | |
2959 | if ((mdata->filelen & pagemask) > (vma & pagemask)) | |
2960 | mdata->filelen += pagemask + 1; | |
2961 | seg->fileoff = mdata->filelen & ~pagemask; | |
2962 | mdata->filelen = seg->fileoff + (vma & pagemask); | |
7f307238 | 2963 | |
c9ffd2ea TG |
2964 | /* Set section file offset. */ |
2965 | for (s = seg->sect_head; s != NULL; s = s->next) | |
7f307238 | 2966 | { |
c9ffd2ea TG |
2967 | asection *sec = s->bfdsection; |
2968 | flagword flags = bfd_get_section_flags (abfd, sec); | |
b22161d6 | 2969 | |
c9ffd2ea TG |
2970 | /* Adjust segment size. */ |
2971 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2972 | seg->vmsize += s->size; | |
2973 | ||
2974 | /* File offset and length. */ | |
2975 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
2976 | ||
2977 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL | |
07d6d2b8 | 2978 | && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2979 | != BFD_MACH_O_S_GB_ZEROFILL)) |
b22161d6 | 2980 | { |
c9ffd2ea TG |
2981 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2982 | ||
2983 | s->offset = mdata->filelen; | |
2984 | s->bfdsection->filepos = s->offset; | |
2985 | ||
2986 | seg->filesize += s->size; | |
2987 | mdata->filelen += s->size; | |
b22161d6 | 2988 | } |
c9ffd2ea | 2989 | else |
b22161d6 | 2990 | { |
c9ffd2ea TG |
2991 | s->offset = 0; |
2992 | s->bfdsection->filepos = 0; | |
2993 | } | |
2994 | ||
2995 | /* Set protection. */ | |
2996 | if (flags & SEC_LOAD) | |
2997 | { | |
2998 | if (flags & SEC_CODE) | |
2999 | seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE; | |
3000 | if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA) | |
3001 | seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ; | |
b22161d6 | 3002 | } |
c9ffd2ea TG |
3003 | |
3004 | /* Relocs shouldn't appear in non-object files. */ | |
3005 | if (s->bfdsection->reloc_count != 0) | |
3006 | return FALSE; | |
b22161d6 | 3007 | } |
c9ffd2ea TG |
3008 | |
3009 | /* Set maxprot. */ | |
3010 | if (seg->initprot != 0) | |
3011 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
3012 | | BFD_MACH_O_PROT_EXECUTE; | |
b22161d6 | 3013 | else |
c9ffd2ea | 3014 | seg->maxprot = 0; |
b22161d6 | 3015 | |
c9ffd2ea TG |
3016 | /* Round segment size (and file size). */ |
3017 | seg->vmsize = (seg->vmsize + pagemask) & ~pagemask; | |
3018 | seg->filesize = (seg->filesize + pagemask) & ~pagemask; | |
3019 | mdata->filelen = (mdata->filelen + pagemask) & ~pagemask; | |
7f307238 | 3020 | |
c9ffd2ea TG |
3021 | return TRUE; |
3022 | } | |
68ffbac6 | 3023 | |
c9ffd2ea TG |
3024 | /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds |
3025 | fields in header. */ | |
68ffbac6 | 3026 | |
86eafac0 | 3027 | static bfd_boolean |
c9ffd2ea TG |
3028 | bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata) |
3029 | { | |
3030 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3031 | unsigned int hdrlen; | |
3032 | ufile_ptr offset; | |
3033 | bfd_mach_o_load_command *cmd; | |
3034 | unsigned int align; | |
86eafac0 | 3035 | bfd_boolean ret = TRUE; |
c9ffd2ea TG |
3036 | |
3037 | hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; | |
3038 | align = wide ? 8 - 1 : 4 - 1; | |
3039 | offset = hdrlen; | |
3040 | mdata->header.ncmds = 0; | |
50d10658 | 3041 | |
c9ffd2ea TG |
3042 | for (cmd = mdata->first_command; cmd; cmd = cmd->next) |
3043 | { | |
3044 | mdata->header.ncmds++; | |
3045 | cmd->offset = offset; | |
68ffbac6 | 3046 | |
c9ffd2ea TG |
3047 | switch (cmd->type) |
3048 | { | |
3049 | case BFD_MACH_O_LC_SEGMENT_64: | |
3050 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
3051 | + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects; | |
3052 | break; | |
3053 | case BFD_MACH_O_LC_SEGMENT: | |
3054 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
3055 | + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects; | |
3056 | break; | |
3057 | case BFD_MACH_O_LC_SYMTAB: | |
3058 | cmd->len = sizeof (struct mach_o_symtab_command_external) | |
3059 | + BFD_MACH_O_LC_SIZE; | |
3060 | break; | |
3061 | case BFD_MACH_O_LC_DYSYMTAB: | |
3062 | cmd->len = sizeof (struct mach_o_dysymtab_command_external) | |
3063 | + BFD_MACH_O_LC_SIZE; | |
3064 | break; | |
3065 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
3066 | cmd->len = sizeof (struct mach_o_dylib_command_external) | |
3067 | + BFD_MACH_O_LC_SIZE; | |
3068 | cmd->command.dylib.name_offset = cmd->len; | |
3069 | cmd->len += strlen (cmd->command.dylib.name_str); | |
3070 | cmd->len = (cmd->len + align) & ~align; | |
3071 | break; | |
3072 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
3073 | cmd->len = sizeof (struct mach_o_str_command_external) | |
3074 | + BFD_MACH_O_LC_SIZE; | |
3075 | cmd->command.dylinker.name_offset = cmd->len; | |
3076 | cmd->len += strlen (cmd->command.dylinker.name_str); | |
3077 | cmd->len = (cmd->len + align) & ~align; | |
3078 | break; | |
3079 | case BFD_MACH_O_LC_MAIN: | |
3080 | cmd->len = sizeof (struct mach_o_entry_point_command_external) | |
3081 | + BFD_MACH_O_LC_SIZE; | |
3082 | break; | |
3083 | case BFD_MACH_O_LC_DYLD_INFO: | |
3084 | cmd->len = sizeof (struct mach_o_dyld_info_command_external) | |
3085 | + BFD_MACH_O_LC_SIZE; | |
3086 | break; | |
3087 | default: | |
4eca0228 | 3088 | _bfd_error_handler |
d42c267e AM |
3089 | (_("unable to layout unknown load command %#x"), |
3090 | cmd->type); | |
86eafac0 | 3091 | ret = FALSE; |
c9ffd2ea | 3092 | break; |
7f307238 | 3093 | } |
c9ffd2ea TG |
3094 | |
3095 | BFD_ASSERT (cmd->len % (align + 1) == 0); | |
3096 | offset += cmd->len; | |
7f307238 | 3097 | } |
c9ffd2ea TG |
3098 | mdata->header.sizeofcmds = offset - hdrlen; |
3099 | mdata->filelen = offset; | |
86eafac0 NC |
3100 | |
3101 | return ret; | |
c9ffd2ea | 3102 | } |
7f307238 | 3103 | |
c9ffd2ea TG |
3104 | /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a |
3105 | segment. */ | |
3106 | ||
3107 | static void | |
3108 | bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata, | |
3109 | bfd_mach_o_load_command *cmd, | |
3110 | const char *segname, unsigned int nbr_sect) | |
3111 | { | |
3112 | bfd_mach_o_segment_command *seg = &cmd->command.segment; | |
3113 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3114 | ||
3115 | /* Init segment command. */ | |
3116 | cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT; | |
3117 | cmd->type_required = FALSE; | |
3118 | ||
3119 | strcpy (seg->segname, segname); | |
3120 | seg->nsects = nbr_sect; | |
3121 | ||
3122 | seg->vmaddr = 0; | |
3123 | seg->vmsize = 0; | |
3124 | ||
3125 | seg->fileoff = 0; | |
3126 | seg->filesize = 0; | |
3127 | seg->maxprot = 0; | |
3128 | seg->initprot = 0; | |
3129 | seg->flags = 0; | |
3130 | seg->sect_head = NULL; | |
3131 | seg->sect_tail = NULL; | |
7f307238 IS |
3132 | } |
3133 | ||
3134 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
3135 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
3136 | and copy functionality. */ | |
154a1ee5 TG |
3137 | |
3138 | bfd_boolean | |
3139 | bfd_mach_o_build_commands (bfd *abfd) | |
3140 | { | |
046b007d | 3141 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bbd56171 | 3142 | unsigned wide = mach_o_wide_p (&mdata->header); |
c9ffd2ea TG |
3143 | unsigned int nbr_segcmd = 0; |
3144 | bfd_mach_o_load_command *commands; | |
3145 | unsigned int nbr_commands; | |
bbd56171 IS |
3146 | int symtab_idx = -1; |
3147 | int dysymtab_idx = -1; | |
c9ffd2ea TG |
3148 | int main_idx = -1; |
3149 | unsigned int i; | |
154a1ee5 | 3150 | |
c9ffd2ea TG |
3151 | /* Return now if already built. */ |
3152 | if (mdata->header.ncmds != 0) | |
3153 | return TRUE; | |
154a1ee5 | 3154 | |
7f307238 | 3155 | /* Fill in the file type, if not already set. */ |
7f307238 | 3156 | if (mdata->header.filetype == 0) |
154a1ee5 | 3157 | { |
7f307238 | 3158 | if (abfd->flags & EXEC_P) |
07d6d2b8 | 3159 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; |
7f307238 | 3160 | else if (abfd->flags & DYNAMIC) |
07d6d2b8 | 3161 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; |
7f307238 | 3162 | else |
07d6d2b8 | 3163 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; |
154a1ee5 | 3164 | } |
7f307238 IS |
3165 | |
3166 | /* If hasn't already been done, flatten sections list, and sort | |
3167 | if/when required. Must be done before the symbol table is adjusted, | |
3168 | since that depends on properly numbered sections. */ | |
3169 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
3170 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
3171 | return FALSE; | |
3172 | ||
3173 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
3174 | partition out any indirect symbols. */ | |
b22161d6 | 3175 | if (!bfd_mach_o_mangle_symbols (abfd)) |
7f307238 IS |
3176 | return FALSE; |
3177 | ||
c9ffd2ea TG |
3178 | /* Segment commands. */ |
3179 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) | |
3180 | { | |
3181 | /* Only one segment for all the sections. But the segment is | |
3182 | optional if there is no sections. */ | |
3183 | nbr_segcmd = (mdata->nsects > 0) ? 1 : 0; | |
3184 | } | |
3185 | else | |
3186 | { | |
3187 | bfd_mach_o_section *prev_sect = NULL; | |
bbd56171 | 3188 | |
c9ffd2ea TG |
3189 | /* One pagezero segment and one linkedit segment. */ |
3190 | nbr_segcmd = 2; | |
bbd56171 | 3191 | |
c9ffd2ea TG |
3192 | /* Create one segment for associated segment name in sections. |
3193 | Assume that sections with the same segment name are consecutive. */ | |
3194 | for (i = 0; i < mdata->nsects; i++) | |
3195 | { | |
3196 | bfd_mach_o_section *this_sect = mdata->sections[i]; | |
bbd56171 | 3197 | |
c9ffd2ea TG |
3198 | if (prev_sect == NULL |
3199 | || strcmp (prev_sect->segname, this_sect->segname) != 0) | |
3200 | { | |
3201 | nbr_segcmd++; | |
3202 | prev_sect = this_sect; | |
3203 | } | |
3204 | } | |
154a1ee5 | 3205 | } |
154a1ee5 | 3206 | |
c9ffd2ea TG |
3207 | nbr_commands = nbr_segcmd; |
3208 | ||
3209 | /* One command for the symbol table (only if there are symbols. */ | |
7f307238 | 3210 | if (bfd_get_symcount (abfd) > 0) |
c9ffd2ea | 3211 | symtab_idx = nbr_commands++; |
c2f09c75 | 3212 | |
bbd56171 IS |
3213 | /* FIXME: |
3214 | This is a rather crude test for whether we should build a dysymtab. */ | |
3215 | if (bfd_mach_o_should_emit_dysymtab () | |
3216 | && bfd_get_symcount (abfd)) | |
3217 | { | |
bbd56171 IS |
3218 | /* If there should be a case where a dysymtab could be emitted without |
3219 | a symtab (seems improbable), this would need amending. */ | |
c9ffd2ea | 3220 | dysymtab_idx = nbr_commands++; |
bbd56171 | 3221 | } |
154a1ee5 | 3222 | |
c9ffd2ea TG |
3223 | /* Add an entry point command. */ |
3224 | if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE | |
3225 | && bfd_get_start_address (abfd) != 0) | |
3226 | main_idx = nbr_commands++; | |
c2f09c75 | 3227 | |
bbd56171 | 3228 | /* Well, we must have a header, at least. */ |
c9ffd2ea | 3229 | mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
f1bde64c | 3230 | |
bbd56171 | 3231 | /* A bit unusual, but no content is valid; |
7f307238 | 3232 | as -n empty.s -o empty.o */ |
c9ffd2ea TG |
3233 | if (nbr_commands == 0) |
3234 | { | |
3235 | /* Layout commands (well none...) and set headers command fields. */ | |
86eafac0 | 3236 | return bfd_mach_o_layout_commands (mdata); |
c9ffd2ea | 3237 | } |
f1bde64c | 3238 | |
c9ffd2ea TG |
3239 | /* Create commands for segments (and symtabs), prepend them. */ |
3240 | commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command)); | |
3241 | if (commands == NULL) | |
7f307238 | 3242 | return FALSE; |
c9ffd2ea TG |
3243 | for (i = 0; i < nbr_commands - 1; i++) |
3244 | commands[i].next = &commands[i + 1]; | |
3245 | commands[nbr_commands - 1].next = mdata->first_command; | |
3246 | if (mdata->first_command == NULL) | |
3247 | mdata->last_command = &commands[nbr_commands - 1]; | |
3248 | mdata->first_command = &commands[0]; | |
3249 | ||
3250 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0) | |
3251 | { | |
3252 | /* For object file, there is only one segment. */ | |
3253 | bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects); | |
3254 | } | |
3255 | else if (nbr_segcmd != 0) | |
68ffbac6 | 3256 | { |
c9ffd2ea | 3257 | bfd_mach_o_load_command *cmd; |
7f307238 | 3258 | |
c9ffd2ea | 3259 | BFD_ASSERT (nbr_segcmd >= 2); |
7f307238 | 3260 | |
c9ffd2ea TG |
3261 | /* The pagezero. */ |
3262 | cmd = &commands[0]; | |
3263 | bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0); | |
3264 | ||
3265 | /* Segments from sections. */ | |
3266 | cmd++; | |
3267 | for (i = 0; i < mdata->nsects;) | |
7f307238 | 3268 | { |
c9ffd2ea TG |
3269 | const char *segname = mdata->sections[i]->segname; |
3270 | unsigned int nbr_sect = 1; | |
3271 | ||
3272 | /* Count number of sections for this segment. */ | |
3273 | for (i++; i < mdata->nsects; i++) | |
3274 | if (strcmp (mdata->sections[i]->segname, segname) == 0) | |
3275 | nbr_sect++; | |
3276 | else | |
3277 | break; | |
3278 | ||
3279 | bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect); | |
3280 | cmd++; | |
7f307238 | 3281 | } |
bbd56171 | 3282 | |
c9ffd2ea TG |
3283 | /* The linkedit. */ |
3284 | bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0); | |
7f307238 | 3285 | } |
f1bde64c | 3286 | |
bbd56171 | 3287 | if (symtab_idx >= 0) |
7f307238 IS |
3288 | { |
3289 | /* Init symtab command. */ | |
c9ffd2ea | 3290 | bfd_mach_o_load_command *cmd = &commands[symtab_idx]; |
68ffbac6 | 3291 | |
bbd56171 | 3292 | cmd->type = BFD_MACH_O_LC_SYMTAB; |
bbd56171 | 3293 | cmd->type_required = FALSE; |
7f307238 | 3294 | } |
154a1ee5 | 3295 | |
bbd56171 IS |
3296 | /* If required, setup symtab command, see comment above about the quality |
3297 | of this test. */ | |
3298 | if (dysymtab_idx >= 0) | |
7f307238 | 3299 | { |
c9ffd2ea | 3300 | bfd_mach_o_load_command *cmd = &commands[dysymtab_idx]; |
bbd56171 | 3301 | |
7f307238 | 3302 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; |
7f307238 | 3303 | cmd->type_required = FALSE; |
c9ffd2ea TG |
3304 | } |
3305 | ||
3306 | /* Create the main command. */ | |
3307 | if (main_idx >= 0) | |
3308 | { | |
3309 | bfd_mach_o_load_command *cmd = &commands[main_idx]; | |
7f307238 | 3310 | |
c9ffd2ea TG |
3311 | cmd->type = BFD_MACH_O_LC_MAIN; |
3312 | cmd->type_required = TRUE; | |
3313 | ||
3314 | cmd->command.main.entryoff = 0; | |
3315 | cmd->command.main.stacksize = 0; | |
154a1ee5 | 3316 | } |
154a1ee5 | 3317 | |
c9ffd2ea | 3318 | /* Layout commands. */ |
86eafac0 NC |
3319 | if (! bfd_mach_o_layout_commands (mdata)) |
3320 | return FALSE; | |
c9ffd2ea | 3321 | |
7f307238 IS |
3322 | /* So, now we have sized the commands and the filelen set to that. |
3323 | Now we can build the segment command and set the section file offsets. */ | |
c9ffd2ea TG |
3324 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) |
3325 | { | |
3326 | for (i = 0; i < nbr_segcmd; i++) | |
3327 | if (!bfd_mach_o_build_obj_seg_command | |
3328 | (abfd, &commands[i].command.segment)) | |
3329 | return FALSE; | |
3330 | } | |
3331 | else | |
3332 | { | |
3333 | bfd_vma maxvma = 0; | |
7f307238 | 3334 | |
c9ffd2ea TG |
3335 | /* Skip pagezero and linkedit segments. */ |
3336 | for (i = 1; i < nbr_segcmd - 1; i++) | |
3337 | { | |
3338 | bfd_mach_o_segment_command *seg = &commands[i].command.segment; | |
3339 | ||
3340 | if (!bfd_mach_o_build_exec_seg_command (abfd, seg)) | |
3341 | return FALSE; | |
3342 | ||
3343 | if (seg->vmaddr + seg->vmsize > maxvma) | |
3344 | maxvma = seg->vmaddr + seg->vmsize; | |
3345 | } | |
3346 | ||
3347 | /* Set the size of __PAGEZERO. */ | |
3348 | commands[0].command.segment.vmsize = | |
3349 | commands[1].command.segment.vmaddr; | |
3350 | ||
3351 | /* Set the vma and fileoff of __LINKEDIT. */ | |
3352 | commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma; | |
3353 | commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen; | |
3354 | ||
3355 | /* Set entry point (once segments have been laid out). */ | |
3356 | if (main_idx >= 0) | |
3357 | commands[main_idx].command.main.entryoff = | |
3358 | bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr; | |
3359 | } | |
7f307238 | 3360 | |
154a1ee5 TG |
3361 | return TRUE; |
3362 | } | |
3363 | ||
3364 | /* Set the contents of a section. */ | |
3365 | ||
3366 | bfd_boolean | |
3367 | bfd_mach_o_set_section_contents (bfd *abfd, | |
3368 | asection *section, | |
3369 | const void * location, | |
3370 | file_ptr offset, | |
3371 | bfd_size_type count) | |
3372 | { | |
3373 | file_ptr pos; | |
3374 | ||
7f307238 IS |
3375 | /* Trying to write the first section contents will trigger the creation of |
3376 | the load commands if they are not already present. */ | |
c9ffd2ea | 3377 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
154a1ee5 TG |
3378 | return FALSE; |
3379 | ||
3380 | if (count == 0) | |
3381 | return TRUE; | |
3382 | ||
3383 | pos = section->filepos + offset; | |
3384 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
3385 | || bfd_bwrite (location, count, abfd) != count) | |
3386 | return FALSE; | |
3387 | ||
3388 | return TRUE; | |
3389 | } | |
3390 | ||
3391 | int | |
116c20d2 | 3392 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 3393 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
3394 | { |
3395 | return 0; | |
3396 | } | |
3397 | ||
3398 | /* Make an empty symbol. This is required only because | |
3399 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
3400 | ||
154a1ee5 | 3401 | asymbol * |
116c20d2 | 3402 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 3403 | { |
d3ce72d0 NC |
3404 | asymbol *new_symbol; |
3405 | ||
3406 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
3407 | if (new_symbol == NULL) | |
3408 | return new_symbol; | |
3409 | new_symbol->the_bfd = abfd; | |
b22161d6 | 3410 | new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET; |
d3ce72d0 | 3411 | return new_symbol; |
3af9a47b NC |
3412 | } |
3413 | ||
154a1ee5 | 3414 | static bfd_boolean |
47daa70f | 3415 | bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header) |
3af9a47b | 3416 | { |
46d1c23b | 3417 | struct mach_o_header_external raw; |
1e8a024a | 3418 | unsigned int size; |
edeb6e24 | 3419 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 3420 | |
1e8a024a | 3421 | /* Just read the magic number. */ |
47daa70f | 3422 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3423 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 3424 | return FALSE; |
3af9a47b | 3425 | |
46d1c23b | 3426 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
3427 | { |
3428 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3429 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 3430 | header->version = 1; |
3af9a47b NC |
3431 | get32 = bfd_getb32; |
3432 | } | |
46d1c23b | 3433 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 3434 | { |
a95a4550 | 3435 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 3436 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
3437 | header->version = 1; |
3438 | get32 = bfd_getl32; | |
3439 | } | |
46d1c23b | 3440 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3441 | { |
3442 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3443 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
3444 | header->version = 2; |
3445 | get32 = bfd_getb32; | |
3446 | } | |
46d1c23b | 3447 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3448 | { |
3449 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 3450 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 3451 | header->version = 2; |
3af9a47b NC |
3452 | get32 = bfd_getl32; |
3453 | } | |
3454 | else | |
3455 | { | |
3456 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 3457 | return FALSE; |
3af9a47b | 3458 | } |
a95a4550 | 3459 | |
1e8a024a | 3460 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 3461 | size = mach_o_wide_p (header) ? |
154a1ee5 | 3462 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 3463 | |
47daa70f | 3464 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3465 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 3466 | return FALSE; |
1e8a024a | 3467 | |
46d1c23b TG |
3468 | header->cputype = (*get32) (raw.cputype); |
3469 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
3470 | header->filetype = (*get32) (raw.filetype); | |
3471 | header->ncmds = (*get32) (raw.ncmds); | |
3472 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
3473 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 3474 | |
c2f09c75 | 3475 | if (mach_o_wide_p (header)) |
46d1c23b | 3476 | header->reserved = (*get32) (raw.reserved); |
facf03f2 TG |
3477 | else |
3478 | header->reserved = 0; | |
1e8a024a | 3479 | |
154a1ee5 | 3480 | return TRUE; |
3af9a47b NC |
3481 | } |
3482 | ||
f1bde64c TG |
3483 | bfd_boolean |
3484 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
3485 | { | |
3486 | bfd_mach_o_section *s; | |
a4551119 | 3487 | unsigned bfdalign = bfd_get_section_alignment (abfd, sec); |
f1bde64c TG |
3488 | |
3489 | s = bfd_mach_o_get_mach_o_section (sec); | |
3490 | if (s == NULL) | |
3491 | { | |
3492 | flagword bfd_flags; | |
a4551119 | 3493 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
3494 | |
3495 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
3496 | if (s == NULL) | |
3497 | return FALSE; | |
3498 | sec->used_by_bfd = s; | |
3499 | s->bfdsection = sec; | |
3500 | ||
a4551119 TG |
3501 | /* Create the Darwin seg/sect name pair from the bfd name. |
3502 | If this is a canonical name for which a specific paiting exists | |
3503 | there will also be defined flags, type, attribute and alignment | |
3504 | values. */ | |
3505 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
3506 | if (xlat != NULL) | |
3507 | { | |
3508 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
68ffbac6 | 3509 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign |
a4551119 | 3510 | : bfdalign; |
a253d456 | 3511 | (void) bfd_set_section_alignment (abfd, sec, s->align); |
a4551119 TG |
3512 | bfd_flags = bfd_get_section_flags (abfd, sec); |
3513 | if (bfd_flags == SEC_NO_FLAGS) | |
3514 | bfd_set_section_flags (abfd, sec, xlat->bfd_flags); | |
3515 | } | |
f1bde64c | 3516 | else |
a4551119 TG |
3517 | /* Create default flags. */ |
3518 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
3519 | } |
3520 | ||
3521 | return _bfd_generic_new_section_hook (abfd, sec); | |
3522 | } | |
3523 | ||
3524 | static void | |
3525 | bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec, | |
07d6d2b8 | 3526 | unsigned long prot) |
3af9a47b | 3527 | { |
117ed4f8 | 3528 | flagword flags; |
f1bde64c | 3529 | bfd_mach_o_section *section; |
3af9a47b | 3530 | |
f1bde64c TG |
3531 | flags = bfd_get_section_flags (abfd, sec); |
3532 | section = bfd_mach_o_get_mach_o_section (sec); | |
3af9a47b | 3533 | |
a4551119 TG |
3534 | /* TODO: see if we should use the xlat system for doing this by |
3535 | preference and fall back to this for unknown sections. */ | |
3536 | ||
8462aec7 | 3537 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 3538 | { |
8462aec7 TG |
3539 | /* Try to guess flags. */ |
3540 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
07d6d2b8 | 3541 | flags = SEC_DEBUGGING; |
8462aec7 | 3542 | else |
07d6d2b8 AM |
3543 | { |
3544 | flags = SEC_ALLOC; | |
3545 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
3546 | != BFD_MACH_O_S_ZEROFILL) | |
3547 | { | |
3548 | flags |= SEC_LOAD; | |
3549 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
3550 | flags |= SEC_CODE; | |
3551 | if (prot & BFD_MACH_O_PROT_WRITE) | |
3552 | flags |= SEC_DATA; | |
3553 | else if (prot & BFD_MACH_O_PROT_READ) | |
3554 | flags |= SEC_READONLY; | |
3555 | } | |
3556 | } | |
ef17cb22 | 3557 | } |
15e1c58a TG |
3558 | else |
3559 | { | |
8462aec7 | 3560 | if ((flags & SEC_DEBUGGING) == 0) |
07d6d2b8 | 3561 | flags |= SEC_ALLOC; |
15e1c58a | 3562 | } |
8462aec7 TG |
3563 | |
3564 | if (section->offset != 0) | |
3565 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
3566 | if (section->nreloc != 0) |
3567 | flags |= SEC_RELOC; | |
3568 | ||
f1bde64c TG |
3569 | bfd_set_section_flags (abfd, sec, flags); |
3570 | ||
3571 | sec->vma = section->addr; | |
3572 | sec->lma = section->addr; | |
3573 | sec->size = section->size; | |
3574 | sec->filepos = section->offset; | |
3575 | sec->alignment_power = section->align; | |
3576 | sec->segment_mark = 0; | |
3577 | sec->reloc_count = section->nreloc; | |
3578 | sec->rel_filepos = section->reloff; | |
3579 | } | |
3580 | ||
3581 | static asection * | |
3582 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
07d6d2b8 AM |
3583 | const unsigned char *segname, |
3584 | const unsigned char *sectname) | |
f1bde64c TG |
3585 | { |
3586 | const char *sname; | |
3587 | flagword flags; | |
a95a4550 | 3588 | |
f1bde64c TG |
3589 | bfd_mach_o_convert_section_name_to_bfd |
3590 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
3591 | if (sname == NULL) | |
3592 | return NULL; | |
3af9a47b | 3593 | |
f1bde64c | 3594 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
3595 | } |
3596 | ||
f1bde64c | 3597 | static asection * |
47daa70f | 3598 | bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot) |
3af9a47b | 3599 | { |
46d1c23b | 3600 | struct mach_o_section_32_external raw; |
f1bde64c TG |
3601 | asection *sec; |
3602 | bfd_mach_o_section *section; | |
3af9a47b | 3603 | |
47daa70f TG |
3604 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
3605 | != BFD_MACH_O_SECTION_SIZE) | |
f1bde64c | 3606 | return NULL; |
a95a4550 | 3607 | |
5a5cbf72 | 3608 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3609 | if (sec == NULL) |
3610 | return NULL; | |
3611 | ||
3612 | section = bfd_mach_o_get_mach_o_section (sec); | |
3613 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3614 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3615 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3616 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3617 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
3618 | section->size = bfd_h_get_32 (abfd, raw.size); | |
3619 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3620 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3621 | /* PR 17512: file: 0017eb76. */ |
3622 | if (section->align > 64) | |
3623 | { | |
4eca0228 | 3624 | _bfd_error_handler |
d42c267e | 3625 | (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, " |
4eca0228 | 3626 | "using 32 instead"), section->align); |
c86934ce NC |
3627 | section->align = 32; |
3628 | } | |
46d1c23b TG |
3629 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3630 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3631 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3632 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3633 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 3634 | section->reserved3 = 0; |
1e8a024a | 3635 | |
f1bde64c | 3636 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
1e8a024a | 3637 | |
f1bde64c | 3638 | return sec; |
1e8a024a TG |
3639 | } |
3640 | ||
f1bde64c | 3641 | static asection * |
47daa70f | 3642 | bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot) |
1e8a024a | 3643 | { |
46d1c23b | 3644 | struct mach_o_section_64_external raw; |
f1bde64c TG |
3645 | asection *sec; |
3646 | bfd_mach_o_section *section; | |
1e8a024a | 3647 | |
47daa70f TG |
3648 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
3649 | != BFD_MACH_O_SECTION_64_SIZE) | |
f1bde64c TG |
3650 | return NULL; |
3651 | ||
5a5cbf72 | 3652 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3653 | if (sec == NULL) |
3654 | return NULL; | |
1e8a024a | 3655 | |
f1bde64c TG |
3656 | section = bfd_mach_o_get_mach_o_section (sec); |
3657 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3658 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3659 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3660 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3661 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
3662 | section->size = bfd_h_get_64 (abfd, raw.size); | |
3663 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3664 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3665 | if (section->align > 64) |
3666 | { | |
4eca0228 | 3667 | _bfd_error_handler |
d42c267e | 3668 | (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, " |
4eca0228 | 3669 | "using 32 instead"), section->align); |
c86934ce NC |
3670 | section->align = 32; |
3671 | } | |
46d1c23b TG |
3672 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3673 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3674 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3675 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3676 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
3677 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 3678 | |
f1bde64c | 3679 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
3af9a47b | 3680 | |
f1bde64c | 3681 | return sec; |
3af9a47b NC |
3682 | } |
3683 | ||
f1bde64c | 3684 | static asection * |
47daa70f | 3685 | bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide) |
1e8a024a TG |
3686 | { |
3687 | if (wide) | |
47daa70f | 3688 | return bfd_mach_o_read_section_64 (abfd, prot); |
1e8a024a | 3689 | else |
47daa70f | 3690 | return bfd_mach_o_read_section_32 (abfd, prot); |
1e8a024a TG |
3691 | } |
3692 | ||
afbb9e17 | 3693 | static bfd_boolean |
ab273af8 | 3694 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
07d6d2b8 AM |
3695 | bfd_mach_o_symtab_command *sym, |
3696 | bfd_mach_o_asymbol *s, | |
3697 | unsigned long i) | |
3af9a47b | 3698 | { |
046b007d | 3699 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 3700 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
3701 | unsigned int symwidth = |
3702 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 3703 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 3704 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
3705 | unsigned char type = -1; |
3706 | unsigned char section = -1; | |
3707 | short desc = -1; | |
1e8a024a | 3708 | symvalue value = -1; |
3af9a47b NC |
3709 | unsigned long stroff = -1; |
3710 | unsigned int symtype = -1; | |
3711 | ||
3712 | BFD_ASSERT (sym->strtab != NULL); | |
3713 | ||
c2f09c75 | 3714 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 3715 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 3716 | { |
4eca0228 | 3717 | _bfd_error_handler |
695344c0 | 3718 | /* xgettext:c-format */ |
07d6d2b8 AM |
3719 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"), |
3720 | symwidth, symoff); | |
afbb9e17 | 3721 | return FALSE; |
3af9a47b NC |
3722 | } |
3723 | ||
46d1c23b TG |
3724 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
3725 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 3726 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
3727 | section = bfd_h_get_8 (abfd, raw.n_sect); |
3728 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 3729 | if (wide) |
46d1c23b | 3730 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 3731 | else |
46d1c23b | 3732 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
3733 | |
3734 | if (stroff >= sym->strsize) | |
3735 | { | |
4eca0228 | 3736 | _bfd_error_handler |
695344c0 | 3737 | /* xgettext:c-format */ |
07d6d2b8 AM |
3738 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"), |
3739 | stroff, | |
3740 | sym->strsize); | |
afbb9e17 | 3741 | return FALSE; |
3af9a47b NC |
3742 | } |
3743 | ||
92bc0e80 TG |
3744 | s->symbol.the_bfd = abfd; |
3745 | s->symbol.name = sym->strtab + stroff; | |
3746 | s->symbol.value = value; | |
3747 | s->symbol.flags = 0x0; | |
b22161d6 | 3748 | s->symbol.udata.i = i; |
92bc0e80 TG |
3749 | s->n_type = type; |
3750 | s->n_sect = section; | |
3751 | s->n_desc = desc; | |
3af9a47b NC |
3752 | |
3753 | if (type & BFD_MACH_O_N_STAB) | |
3754 | { | |
92bc0e80 TG |
3755 | s->symbol.flags |= BSF_DEBUGGING; |
3756 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
3757 | switch (type) |
3758 | { | |
3759 | case N_FUN: | |
3760 | case N_STSYM: | |
3761 | case N_LCSYM: | |
3762 | case N_BNSYM: | |
3763 | case N_SLINE: | |
3764 | case N_ENSYM: | |
3765 | case N_ECOMM: | |
3766 | case N_ECOML: | |
3767 | case N_GSYM: | |
3768 | if ((section > 0) && (section <= mdata->nsects)) | |
3769 | { | |
92bc0e80 TG |
3770 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3771 | s->symbol.value = | |
07d6d2b8 | 3772 | s->symbol.value - mdata->sections[section - 1]->addr; |
15e1c58a TG |
3773 | } |
3774 | break; | |
3775 | } | |
3af9a47b NC |
3776 | } |
3777 | else | |
3778 | { | |
b22161d6 | 3779 | if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)) |
92bc0e80 | 3780 | s->symbol.flags |= BSF_GLOBAL; |
b22161d6 | 3781 | else |
92bc0e80 | 3782 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
3783 | |
3784 | switch (symtype) | |
3785 | { | |
3786 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
3787 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
3788 | && s->symbol.value != 0) | |
3789 | { | |
3790 | /* A common symbol. */ | |
3791 | s->symbol.section = bfd_com_section_ptr; | |
3792 | s->symbol.flags = BSF_NO_FLAGS; | |
3793 | } | |
3794 | else | |
3795 | { | |
3796 | s->symbol.section = bfd_und_section_ptr; | |
3797 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
3798 | s->symbol.flags |= BSF_WEAK; | |
3799 | } | |
3af9a47b NC |
3800 | break; |
3801 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 3802 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3803 | break; |
3804 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 3805 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
3806 | break; |
3807 | case BFD_MACH_O_N_SECT: | |
3808 | if ((section > 0) && (section <= mdata->nsects)) | |
3809 | { | |
92bc0e80 TG |
3810 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3811 | s->symbol.value = | |
07d6d2b8 | 3812 | s->symbol.value - mdata->sections[section - 1]->addr; |
3af9a47b NC |
3813 | } |
3814 | else | |
3815 | { | |
3816 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
3817 | if (section != 0) | |
3818 | { | |
4eca0228 | 3819 | _bfd_error_handler |
695344c0 | 3820 | /* xgettext:c-format */ |
4eca0228 AM |
3821 | (_("bfd_mach_o_read_symtab_symbol: " |
3822 | "symbol \"%s\" specified invalid section %d (max %lu): " | |
3823 | "setting to undefined"), | |
3824 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 3825 | } |
92bc0e80 | 3826 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3827 | } |
3828 | break; | |
3829 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
3830 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
3831 | won't be followed by the referenced one. This looks harmless | |
3832 | unless we start using the linker. */ | |
3833 | s->symbol.flags |= BSF_INDIRECT; | |
3834 | s->symbol.section = bfd_ind_section_ptr; | |
3835 | s->symbol.value = 0; | |
3af9a47b NC |
3836 | break; |
3837 | default: | |
4eca0228 | 3838 | _bfd_error_handler |
695344c0 | 3839 | /* xgettext:c-format */ |
4eca0228 AM |
3840 | (_("bfd_mach_o_read_symtab_symbol: " |
3841 | "symbol \"%s\" specified invalid type field 0x%x: " | |
3842 | "setting to undefined"), s->symbol.name, symtype); | |
92bc0e80 | 3843 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3844 | break; |
3845 | } | |
3846 | } | |
3847 | ||
afbb9e17 | 3848 | return TRUE; |
3af9a47b NC |
3849 | } |
3850 | ||
c5012cd8 | 3851 | bfd_boolean |
ab273af8 | 3852 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 3853 | { |
046b007d TG |
3854 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3855 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3856 | ||
3857 | /* Fail if there is no symtab. */ | |
3858 | if (sym == NULL) | |
afbb9e17 | 3859 | return FALSE; |
046b007d TG |
3860 | |
3861 | /* Success if already loaded. */ | |
3862 | if (sym->strtab) | |
afbb9e17 | 3863 | return TRUE; |
3af9a47b NC |
3864 | |
3865 | if (abfd->flags & BFD_IN_MEMORY) | |
3866 | { | |
3867 | struct bfd_in_memory *b; | |
3868 | ||
3869 | b = (struct bfd_in_memory *) abfd->iostream; | |
3870 | ||
3871 | if ((sym->stroff + sym->strsize) > b->size) | |
3872 | { | |
3873 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 3874 | return FALSE; |
3af9a47b | 3875 | } |
f075ee0c | 3876 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 3877 | } |
046b007d | 3878 | else |
3af9a47b | 3879 | { |
8bdf0be1 NC |
3880 | /* See PR 21840 for a reproducer. */ |
3881 | if ((sym->strsize + 1) == 0) | |
3882 | return FALSE; | |
e7287c7f | 3883 | sym->strtab = bfd_alloc (abfd, sym->strsize + 1); |
046b007d | 3884 | if (sym->strtab == NULL) |
07d6d2b8 | 3885 | return FALSE; |
046b007d TG |
3886 | |
3887 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 | |
07d6d2b8 AM |
3888 | || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize) |
3889 | { | |
a1165289 NC |
3890 | /* PR 17512: file: 10888-1609-0.004. */ |
3891 | bfd_release (abfd, sym->strtab); | |
3892 | sym->strtab = NULL; | |
07d6d2b8 AM |
3893 | bfd_set_error (bfd_error_file_truncated); |
3894 | return FALSE; | |
3895 | } | |
e7287c7f NC |
3896 | /* Zero terminate the string table. */ |
3897 | sym->strtab[sym->strsize] = 0; | |
3af9a47b NC |
3898 | } |
3899 | ||
afbb9e17 | 3900 | return TRUE; |
3af9a47b NC |
3901 | } |
3902 | ||
c5012cd8 | 3903 | bfd_boolean |
ab273af8 | 3904 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 3905 | { |
046b007d TG |
3906 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3907 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 3908 | unsigned long i; |
3af9a47b | 3909 | |
092d27ff | 3910 | if (sym == NULL || sym->symbols) |
0a9d414a NC |
3911 | /* Return now if there are no symbols or if already loaded. */ |
3912 | return TRUE; | |
046b007d | 3913 | |
64d29018 | 3914 | sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol)); |
3af9a47b NC |
3915 | if (sym->symbols == NULL) |
3916 | { | |
4eca0228 AM |
3917 | _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: " |
3918 | "unable to allocate memory for symbols")); | |
64d29018 | 3919 | sym->nsyms = 0; |
afbb9e17 | 3920 | return FALSE; |
3af9a47b | 3921 | } |
a95a4550 | 3922 | |
afbb9e17 | 3923 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
64d29018 | 3924 | goto fail; |
3af9a47b NC |
3925 | |
3926 | for (i = 0; i < sym->nsyms; i++) | |
64d29018 NC |
3927 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
3928 | goto fail; | |
a95a4550 | 3929 | |
afbb9e17 | 3930 | return TRUE; |
64d29018 NC |
3931 | |
3932 | fail: | |
3933 | bfd_release (abfd, sym->symbols); | |
3934 | sym->symbols = NULL; | |
3935 | sym->nsyms = 0; | |
3936 | return FALSE; | |
3af9a47b NC |
3937 | } |
3938 | ||
3939 | static const char * | |
116c20d2 | 3940 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
3941 | { |
3942 | switch ((int) flavour) | |
3943 | { | |
15e1c58a TG |
3944 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
3945 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
3946 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
3947 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
3948 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
3949 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
3950 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
3951 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
3952 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
3953 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
3954 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
3955 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 3956 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
3957 | default: return "UNKNOWN"; |
3958 | } | |
3959 | } | |
3960 | ||
3961 | static const char * | |
116c20d2 | 3962 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
3963 | { |
3964 | switch ((int) flavour) | |
3965 | { | |
b32e07d7 TG |
3966 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
3967 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
3968 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
3969 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
3970 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
3971 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
3972 | default: return "UNKNOWN"; |
3973 | } | |
3974 | } | |
3975 | ||
452216ab | 3976 | static bfd_boolean |
ab273af8 | 3977 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
3978 | { |
3979 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 3980 | struct mach_o_str_command_external raw; |
3af9a47b | 3981 | unsigned int nameoff; |
4525c51a | 3982 | unsigned int namelen; |
3af9a47b | 3983 | |
47daa70f | 3984 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 3985 | return FALSE; |
3af9a47b | 3986 | |
46d1c23b | 3987 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3af9a47b | 3988 | |
4525c51a TG |
3989 | cmd->name_offset = nameoff; |
3990 | namelen = command->len - nameoff; | |
3991 | nameoff += command->offset; | |
3992 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 3993 | if (cmd->name_str == NULL) |
452216ab | 3994 | return FALSE; |
4525c51a TG |
3995 | if (bfd_seek (abfd, nameoff, SEEK_SET) != 0 |
3996 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) | |
452216ab TG |
3997 | return FALSE; |
3998 | return TRUE; | |
3af9a47b NC |
3999 | } |
4000 | ||
452216ab | 4001 | static bfd_boolean |
ab273af8 | 4002 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4003 | { |
47daa70f | 4004 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4005 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
46d1c23b | 4006 | struct mach_o_dylib_command_external raw; |
3af9a47b | 4007 | unsigned int nameoff; |
4525c51a | 4008 | unsigned int namelen; |
3af9a47b | 4009 | |
046b007d TG |
4010 | switch (command->type) |
4011 | { | |
4012 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4013 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
046b007d | 4014 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 4015 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 4016 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4017 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
4018 | break; |
4019 | default: | |
b32e07d7 | 4020 | BFD_FAIL (); |
452216ab | 4021 | return FALSE; |
046b007d | 4022 | } |
3af9a47b | 4023 | |
47daa70f | 4024 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4025 | return FALSE; |
3af9a47b | 4026 | |
46d1c23b TG |
4027 | nameoff = bfd_h_get_32 (abfd, raw.name); |
4028 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); | |
4029 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
4030 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
4031 | |
4032 | cmd->name_offset = command->offset + nameoff; | |
4525c51a TG |
4033 | namelen = command->len - nameoff; |
4034 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 4035 | if (cmd->name_str == NULL) |
452216ab | 4036 | return FALSE; |
47daa70f | 4037 | if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0 |
4525c51a | 4038 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) |
452216ab TG |
4039 | return FALSE; |
4040 | return TRUE; | |
3af9a47b NC |
4041 | } |
4042 | ||
452216ab | 4043 | static bfd_boolean |
7a79c514 | 4044 | bfd_mach_o_read_prebound_dylib (bfd *abfd, |
07d6d2b8 | 4045 | bfd_mach_o_load_command *command) |
3af9a47b | 4046 | { |
7a79c514 TG |
4047 | bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; |
4048 | struct mach_o_prebound_dylib_command_external raw; | |
4049 | unsigned int nameoff; | |
4050 | unsigned int modoff; | |
4051 | unsigned int str_len; | |
4052 | unsigned char *str; | |
4053 | ||
47daa70f | 4054 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4055 | return FALSE; |
7a79c514 TG |
4056 | |
4057 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
4058 | modoff = bfd_h_get_32 (abfd, raw.linked_modules); | |
4059 | if (nameoff > command->len || modoff > command->len) | |
452216ab | 4060 | return FALSE; |
7a79c514 TG |
4061 | |
4062 | str_len = command->len - sizeof (raw); | |
4063 | str = bfd_alloc (abfd, str_len); | |
4064 | if (str == NULL) | |
452216ab | 4065 | return FALSE; |
7a79c514 | 4066 | if (bfd_bread (str, str_len, abfd) != str_len) |
452216ab | 4067 | return FALSE; |
7a79c514 TG |
4068 | |
4069 | cmd->name_offset = command->offset + nameoff; | |
4070 | cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules); | |
4071 | cmd->linked_modules_offset = command->offset + modoff; | |
4072 | ||
4073 | cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
4074 | cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
452216ab | 4075 | return TRUE; |
7a79c514 TG |
4076 | } |
4077 | ||
452216ab | 4078 | static bfd_boolean |
7a79c514 TG |
4079 | bfd_mach_o_read_prebind_cksum (bfd *abfd, |
4080 | bfd_mach_o_load_command *command) | |
4081 | { | |
4082 | bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum; | |
4083 | struct mach_o_prebind_cksum_command_external raw; | |
3af9a47b | 4084 | |
47daa70f | 4085 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4086 | return FALSE; |
7a79c514 TG |
4087 | |
4088 | cmd->cksum = bfd_get_32 (abfd, raw.cksum); | |
452216ab | 4089 | return TRUE; |
7a79c514 TG |
4090 | } |
4091 | ||
452216ab | 4092 | static bfd_boolean |
7a79c514 TG |
4093 | bfd_mach_o_read_twolevel_hints (bfd *abfd, |
4094 | bfd_mach_o_load_command *command) | |
4095 | { | |
4096 | bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints; | |
4097 | struct mach_o_twolevel_hints_command_external raw; | |
4098 | ||
47daa70f | 4099 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4100 | return FALSE; |
7a79c514 TG |
4101 | |
4102 | cmd->offset = bfd_get_32 (abfd, raw.offset); | |
4103 | cmd->nhints = bfd_get_32 (abfd, raw.nhints); | |
452216ab | 4104 | return TRUE; |
3af9a47b NC |
4105 | } |
4106 | ||
452216ab | 4107 | static bfd_boolean |
9f4a5bd1 TG |
4108 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) |
4109 | { | |
4110 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
4111 | struct mach_o_fvmlib_command_external raw; | |
4112 | unsigned int nameoff; | |
4525c51a | 4113 | unsigned int namelen; |
9f4a5bd1 | 4114 | |
47daa70f | 4115 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4116 | return FALSE; |
9f4a5bd1 TG |
4117 | |
4118 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
4119 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); | |
4120 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
4121 | ||
4122 | fvm->name_offset = command->offset + nameoff; | |
4525c51a TG |
4123 | namelen = command->len - nameoff; |
4124 | fvm->name_str = bfd_alloc (abfd, namelen); | |
9f4a5bd1 | 4125 | if (fvm->name_str == NULL) |
452216ab | 4126 | return FALSE; |
9f4a5bd1 | 4127 | if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0 |
4525c51a | 4128 | || bfd_bread (fvm->name_str, namelen, abfd) != namelen) |
452216ab TG |
4129 | return FALSE; |
4130 | return TRUE; | |
9f4a5bd1 TG |
4131 | } |
4132 | ||
452216ab | 4133 | static bfd_boolean |
ab273af8 | 4134 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4135 | { |
b32e07d7 | 4136 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4137 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 4138 | unsigned int offset; |
3af9a47b NC |
4139 | unsigned int nflavours; |
4140 | unsigned int i; | |
4141 | ||
4142 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
4143 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
4144 | ||
b32e07d7 | 4145 | /* Count the number of threads. */ |
3af9a47b NC |
4146 | offset = 8; |
4147 | nflavours = 0; | |
4148 | while (offset != command->len) | |
4149 | { | |
46d1c23b TG |
4150 | struct mach_o_thread_command_external raw; |
4151 | ||
3af9a47b | 4152 | if (offset >= command->len) |
452216ab | 4153 | return FALSE; |
3af9a47b | 4154 | |
c2f09c75 | 4155 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4156 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4157 | return FALSE; |
3af9a47b | 4158 | |
46d1c23b | 4159 | offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4; |
3af9a47b NC |
4160 | nflavours++; |
4161 | } | |
4162 | ||
b32e07d7 | 4163 | /* Allocate threads. */ |
64d29018 NC |
4164 | cmd->flavours = bfd_alloc2 |
4165 | (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour)); | |
3af9a47b | 4166 | if (cmd->flavours == NULL) |
452216ab | 4167 | return FALSE; |
3af9a47b NC |
4168 | cmd->nflavours = nflavours; |
4169 | ||
4170 | offset = 8; | |
4171 | nflavours = 0; | |
4172 | while (offset != command->len) | |
4173 | { | |
46d1c23b TG |
4174 | struct mach_o_thread_command_external raw; |
4175 | ||
3af9a47b | 4176 | if (offset >= command->len) |
452216ab | 4177 | return FALSE; |
3af9a47b NC |
4178 | |
4179 | if (nflavours >= cmd->nflavours) | |
452216ab | 4180 | return FALSE; |
3af9a47b | 4181 | |
c2f09c75 | 4182 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4183 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4184 | return FALSE; |
3af9a47b | 4185 | |
46d1c23b TG |
4186 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
4187 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
4188 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
4189 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
4190 | nflavours++; |
4191 | } | |
4192 | ||
4193 | for (i = 0; i < nflavours; i++) | |
4194 | { | |
4195 | asection *bfdsec; | |
4196 | unsigned int snamelen; | |
4197 | char *sname; | |
4198 | const char *flavourstr; | |
4199 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
4200 | unsigned int j = 0; |
4201 | ||
3af9a47b NC |
4202 | switch (mdata->header.cputype) |
4203 | { | |
4204 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 4205 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
707e555b TG |
4206 | flavourstr = |
4207 | bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4208 | break; |
4209 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 4210 | case BFD_MACH_O_CPU_TYPE_X86_64: |
707e555b TG |
4211 | flavourstr = |
4212 | bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4213 | break; |
4214 | default: | |
4215 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
4216 | break; | |
4217 | } | |
a95a4550 | 4218 | |
3af9a47b | 4219 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 4220 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b | 4221 | if (sname == NULL) |
452216ab | 4222 | return FALSE; |
3af9a47b NC |
4223 | |
4224 | for (;;) | |
4225 | { | |
a95a4550 AM |
4226 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
4227 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 4228 | break; |
a95a4550 | 4229 | j++; |
3af9a47b NC |
4230 | } |
4231 | ||
117ed4f8 | 4232 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 4233 | |
3af9a47b NC |
4234 | bfdsec->vma = 0; |
4235 | bfdsec->lma = 0; | |
eea6121a | 4236 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
4237 | bfdsec->filepos = cmd->flavours[i].offset; |
4238 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
4239 | |
4240 | cmd->section = bfdsec; | |
4241 | } | |
4242 | ||
452216ab | 4243 | return TRUE; |
3af9a47b NC |
4244 | } |
4245 | ||
452216ab | 4246 | static bfd_boolean |
ab273af8 | 4247 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4248 | { |
046b007d | 4249 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 4250 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4251 | |
4252 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
4253 | ||
46d1c23b TG |
4254 | { |
4255 | struct mach_o_dysymtab_command_external raw; | |
4256 | ||
47daa70f | 4257 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4258 | return FALSE; |
3af9a47b | 4259 | |
46d1c23b TG |
4260 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
4261 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
4262 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
4263 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
4264 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
4265 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
4266 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
4267 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
4268 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
4269 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
4270 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
4271 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
4272 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
4273 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
4274 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
4275 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
4276 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
4277 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
4278 | } | |
046b007d TG |
4279 | |
4280 | if (cmd->nmodtab != 0) | |
4281 | { | |
046b007d TG |
4282 | unsigned int i; |
4283 | int wide = bfd_mach_o_wide_p (abfd); | |
4284 | unsigned int module_len = wide ? 56 : 52; | |
4285 | ||
4286 | cmd->dylib_module = | |
07d6d2b8 | 4287 | bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module)); |
046b007d | 4288 | if (cmd->dylib_module == NULL) |
07d6d2b8 | 4289 | return FALSE; |
046b007d TG |
4290 | |
4291 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
07d6d2b8 | 4292 | return FALSE; |
046b007d TG |
4293 | |
4294 | for (i = 0; i < cmd->nmodtab; i++) | |
07d6d2b8 AM |
4295 | { |
4296 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
4297 | unsigned long v; | |
4298 | unsigned char buf[56]; | |
4299 | ||
4300 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) | |
4301 | return FALSE; | |
4302 | ||
4303 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
4304 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
4305 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
4306 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
4307 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
4308 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
4309 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
4310 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
4311 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
4312 | v = bfd_h_get_32 (abfd, buf +36); | |
4313 | module->iinit = v & 0xffff; | |
4314 | module->iterm = (v >> 16) & 0xffff; | |
4315 | v = bfd_h_get_32 (abfd, buf + 40); | |
4316 | module->ninit = v & 0xffff; | |
4317 | module->nterm = (v >> 16) & 0xffff; | |
4318 | if (wide) | |
4319 | { | |
4320 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
4321 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
4322 | } | |
4323 | else | |
4324 | { | |
4325 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
4326 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
4327 | } | |
4328 | } | |
046b007d | 4329 | } |
afbb9e17 | 4330 | |
046b007d TG |
4331 | if (cmd->ntoc != 0) |
4332 | { | |
64d29018 | 4333 | unsigned long i; |
046b007d | 4334 | |
64d29018 | 4335 | cmd->dylib_toc = bfd_alloc2 |
07d6d2b8 | 4336 | (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content)); |
046b007d | 4337 | if (cmd->dylib_toc == NULL) |
07d6d2b8 | 4338 | return FALSE; |
046b007d TG |
4339 | |
4340 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
07d6d2b8 | 4341 | return FALSE; |
046b007d TG |
4342 | |
4343 | for (i = 0; i < cmd->ntoc; i++) | |
07d6d2b8 AM |
4344 | { |
4345 | struct mach_o_dylib_table_of_contents_external raw; | |
4346 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
046b007d | 4347 | |
07d6d2b8 AM |
4348 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4349 | return FALSE; | |
046b007d | 4350 | |
07d6d2b8 AM |
4351 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
4352 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
4353 | } | |
046b007d TG |
4354 | } |
4355 | ||
4356 | if (cmd->nindirectsyms != 0) | |
4357 | { | |
046b007d TG |
4358 | unsigned int i; |
4359 | ||
64d29018 | 4360 | cmd->indirect_syms = bfd_alloc2 |
07d6d2b8 | 4361 | (abfd, cmd->nindirectsyms, sizeof (unsigned int)); |
046b007d | 4362 | if (cmd->indirect_syms == NULL) |
07d6d2b8 | 4363 | return FALSE; |
046b007d TG |
4364 | |
4365 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4366 | return FALSE; |
046b007d TG |
4367 | |
4368 | for (i = 0; i < cmd->nindirectsyms; i++) | |
07d6d2b8 AM |
4369 | { |
4370 | unsigned char raw[4]; | |
4371 | unsigned int *is = &cmd->indirect_syms[i]; | |
046b007d | 4372 | |
07d6d2b8 AM |
4373 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
4374 | return FALSE; | |
046b007d | 4375 | |
07d6d2b8 AM |
4376 | *is = bfd_h_get_32 (abfd, raw); |
4377 | } | |
046b007d TG |
4378 | } |
4379 | ||
4380 | if (cmd->nextrefsyms != 0) | |
4381 | { | |
046b007d TG |
4382 | unsigned long v; |
4383 | unsigned int i; | |
4384 | ||
64d29018 | 4385 | cmd->ext_refs = bfd_alloc2 |
07d6d2b8 | 4386 | (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference)); |
046b007d | 4387 | if (cmd->ext_refs == NULL) |
07d6d2b8 | 4388 | return FALSE; |
046b007d TG |
4389 | |
4390 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4391 | return FALSE; |
046b007d TG |
4392 | |
4393 | for (i = 0; i < cmd->nextrefsyms; i++) | |
07d6d2b8 AM |
4394 | { |
4395 | unsigned char raw[4]; | |
4396 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
4397 | ||
4398 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) | |
4399 | return FALSE; | |
4400 | ||
4401 | /* Fields isym and flags are written as bit-fields, thus we need | |
4402 | a specific processing for endianness. */ | |
4403 | v = bfd_h_get_32 (abfd, raw); | |
4404 | if (bfd_big_endian (abfd)) | |
4405 | { | |
4406 | ref->isym = (v >> 8) & 0xffffff; | |
4407 | ref->flags = v & 0xff; | |
4408 | } | |
4409 | else | |
4410 | { | |
4411 | ref->isym = v & 0xffffff; | |
4412 | ref->flags = (v >> 24) & 0xff; | |
4413 | } | |
4414 | } | |
046b007d | 4415 | } |
3af9a47b | 4416 | |
b32e07d7 | 4417 | if (mdata->dysymtab) |
452216ab | 4418 | return FALSE; |
b32e07d7 TG |
4419 | mdata->dysymtab = cmd; |
4420 | ||
452216ab | 4421 | return TRUE; |
3af9a47b NC |
4422 | } |
4423 | ||
452216ab | 4424 | static bfd_boolean |
ab273af8 | 4425 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4426 | { |
046b007d TG |
4427 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
4428 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 4429 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
4430 | |
4431 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
4432 | ||
47daa70f | 4433 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4434 | return FALSE; |
a95a4550 | 4435 | |
46d1c23b TG |
4436 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
4437 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
4438 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
4439 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
4440 | symtab->symbols = NULL; |
4441 | symtab->strtab = NULL; | |
3af9a47b | 4442 | |
046b007d | 4443 | if (symtab->nsyms != 0) |
15e1c58a TG |
4444 | abfd->flags |= HAS_SYMS; |
4445 | ||
046b007d | 4446 | if (mdata->symtab) |
452216ab | 4447 | return FALSE; |
046b007d | 4448 | mdata->symtab = symtab; |
452216ab | 4449 | return TRUE; |
3af9a47b NC |
4450 | } |
4451 | ||
452216ab | 4452 | static bfd_boolean |
ab273af8 | 4453 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
4454 | { |
4455 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
4456 | |
4457 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
4458 | ||
47daa70f | 4459 | if (bfd_bread (cmd->uuid, 16, abfd) != 16) |
452216ab | 4460 | return FALSE; |
15e1c58a | 4461 | |
452216ab | 4462 | return TRUE; |
15e1c58a TG |
4463 | } |
4464 | ||
452216ab | 4465 | static bfd_boolean |
ab273af8 | 4466 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4467 | { |
4468 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 4469 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 4470 | |
47daa70f | 4471 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4472 | return FALSE; |
046b007d | 4473 | |
46d1c23b TG |
4474 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
4475 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
452216ab | 4476 | return TRUE; |
046b007d TG |
4477 | } |
4478 | ||
452216ab | 4479 | static bfd_boolean |
ab273af8 | 4480 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4481 | { |
4482 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 4483 | struct mach_o_str_command_external raw; |
046b007d TG |
4484 | unsigned long off; |
4485 | ||
47daa70f | 4486 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4487 | return FALSE; |
046b007d | 4488 | |
46d1c23b | 4489 | off = bfd_get_32 (abfd, raw.str); |
046b007d TG |
4490 | cmd->stroff = command->offset + off; |
4491 | cmd->str_len = command->len - off; | |
4492 | cmd->str = bfd_alloc (abfd, cmd->str_len); | |
4493 | if (cmd->str == NULL) | |
452216ab | 4494 | return FALSE; |
046b007d | 4495 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 |
91d6fa6a | 4496 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
452216ab TG |
4497 | return FALSE; |
4498 | return TRUE; | |
046b007d TG |
4499 | } |
4500 | ||
c9ffd2ea TG |
4501 | static unsigned char * |
4502 | bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size) | |
4503 | { | |
4504 | unsigned char *buf; | |
4505 | ||
4506 | buf = bfd_alloc (abfd, size); | |
4507 | if (buf == NULL) | |
4508 | return NULL; | |
4509 | if (bfd_seek (abfd, off, SEEK_SET) != 0 | |
4510 | || bfd_bread (buf, size, abfd) != size) | |
4511 | return NULL; | |
4512 | return buf; | |
4513 | } | |
4514 | ||
4515 | static bfd_boolean | |
4516 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd) | |
4517 | { | |
4518 | /* Read rebase content. */ | |
4519 | if (cmd->rebase_content == NULL && cmd->rebase_size != 0) | |
4520 | { | |
4521 | cmd->rebase_content = | |
4522 | bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size); | |
4523 | if (cmd->rebase_content == NULL) | |
4524 | return FALSE; | |
4525 | } | |
4526 | ||
4527 | /* Read bind content. */ | |
4528 | if (cmd->bind_content == NULL && cmd->bind_size != 0) | |
4529 | { | |
4530 | cmd->bind_content = | |
4531 | bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size); | |
4532 | if (cmd->bind_content == NULL) | |
4533 | return FALSE; | |
4534 | } | |
4535 | ||
4536 | /* Read weak bind content. */ | |
4537 | if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0) | |
4538 | { | |
4539 | cmd->weak_bind_content = bfd_mach_o_alloc_and_read | |
4540 | (abfd, cmd->weak_bind_off, cmd->weak_bind_size); | |
4541 | if (cmd->weak_bind_content == NULL) | |
4542 | return FALSE; | |
4543 | } | |
4544 | ||
4545 | /* Read lazy bind content. */ | |
4546 | if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0) | |
4547 | { | |
4548 | cmd->lazy_bind_content = bfd_mach_o_alloc_and_read | |
4549 | (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size); | |
4550 | if (cmd->lazy_bind_content == NULL) | |
4551 | return FALSE; | |
4552 | } | |
4553 | ||
4554 | /* Read export content. */ | |
4555 | if (cmd->export_content == NULL && cmd->export_size != 0) | |
4556 | { | |
4557 | cmd->export_content = bfd_mach_o_alloc_and_read | |
4558 | (abfd, cmd->export_off, cmd->export_size); | |
4559 | if (cmd->export_content == NULL) | |
4560 | return FALSE; | |
4561 | } | |
4562 | ||
4563 | return TRUE; | |
4564 | } | |
4565 | ||
452216ab | 4566 | static bfd_boolean |
ab273af8 | 4567 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
4568 | { |
4569 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 4570 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 4571 | |
47daa70f | 4572 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4573 | return FALSE; |
ad86f1fb | 4574 | |
46d1c23b TG |
4575 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
4576 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
c9ffd2ea | 4577 | cmd->rebase_content = NULL; |
46d1c23b TG |
4578 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); |
4579 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
c9ffd2ea | 4580 | cmd->bind_content = NULL; |
46d1c23b TG |
4581 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); |
4582 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
c9ffd2ea | 4583 | cmd->weak_bind_content = NULL; |
46d1c23b TG |
4584 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); |
4585 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
c9ffd2ea | 4586 | cmd->lazy_bind_content = NULL; |
46d1c23b TG |
4587 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); |
4588 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
c9ffd2ea | 4589 | cmd->export_content = NULL; |
452216ab | 4590 | return TRUE; |
ad86f1fb TG |
4591 | } |
4592 | ||
edbdea0e TG |
4593 | static bfd_boolean |
4594 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
4595 | { | |
4596 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
4597 | struct mach_o_version_min_command_external raw; | |
4598 | unsigned int ver; | |
4599 | ||
47daa70f | 4600 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
edbdea0e TG |
4601 | return FALSE; |
4602 | ||
4603 | ver = bfd_get_32 (abfd, raw.version); | |
4604 | cmd->rel = ver >> 16; | |
4605 | cmd->maj = ver >> 8; | |
4606 | cmd->min = ver; | |
4607 | cmd->reserved = bfd_get_32 (abfd, raw.reserved); | |
4608 | return TRUE; | |
4609 | } | |
4610 | ||
fc55a902 TG |
4611 | static bfd_boolean |
4612 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) | |
4613 | { | |
4614 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4615 | struct mach_o_encryption_info_command_external raw; | |
4616 | ||
47daa70f TG |
4617 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4618 | return FALSE; | |
4619 | ||
4620 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4621 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4622 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4623 | return TRUE; | |
4624 | } | |
4625 | ||
4626 | static bfd_boolean | |
4627 | bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command) | |
4628 | { | |
4629 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4630 | struct mach_o_encryption_info_64_command_external raw; | |
4631 | ||
4632 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
fc55a902 TG |
4633 | return FALSE; |
4634 | ||
4635 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4636 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4637 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4638 | return TRUE; | |
4639 | } | |
4640 | ||
1778ad74 TG |
4641 | static bfd_boolean |
4642 | bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command) | |
4643 | { | |
4644 | bfd_mach_o_main_command *cmd = &command->command.main; | |
4645 | struct mach_o_entry_point_command_external raw; | |
4646 | ||
47daa70f | 4647 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4648 | return FALSE; |
4649 | ||
4650 | cmd->entryoff = bfd_get_64 (abfd, raw.entryoff); | |
4651 | cmd->stacksize = bfd_get_64 (abfd, raw.stacksize); | |
4652 | return TRUE; | |
4653 | } | |
4654 | ||
4655 | static bfd_boolean | |
4656 | bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command) | |
4657 | { | |
4658 | bfd_mach_o_source_version_command *cmd = &command->command.source_version; | |
4659 | struct mach_o_source_version_command_external raw; | |
4660 | bfd_uint64_t ver; | |
4661 | ||
47daa70f | 4662 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4663 | return FALSE; |
4664 | ||
4665 | ver = bfd_get_64 (abfd, raw.version); | |
4666 | /* Note: we use a serie of shift to avoid shift > 32 (for which gcc | |
4667 | generates warnings) in case of the host doesn't support 64 bit | |
4668 | integers. */ | |
4669 | cmd->e = ver & 0x3ff; | |
4670 | ver >>= 10; | |
4671 | cmd->d = ver & 0x3ff; | |
4672 | ver >>= 10; | |
4673 | cmd->c = ver & 0x3ff; | |
4674 | ver >>= 10; | |
4675 | cmd->b = ver & 0x3ff; | |
4676 | ver >>= 10; | |
4677 | cmd->a = ver & 0xffffff; | |
4678 | return TRUE; | |
4679 | } | |
4680 | ||
452216ab | 4681 | static bfd_boolean |
ab273af8 | 4682 | bfd_mach_o_read_segment (bfd *abfd, |
07d6d2b8 AM |
4683 | bfd_mach_o_load_command *command, |
4684 | unsigned int wide) | |
3af9a47b | 4685 | { |
3af9a47b NC |
4686 | bfd_mach_o_segment_command *seg = &command->command.segment; |
4687 | unsigned long i; | |
a95a4550 | 4688 | |
1e8a024a TG |
4689 | if (wide) |
4690 | { | |
46d1c23b TG |
4691 | struct mach_o_segment_command_64_external raw; |
4692 | ||
1e8a024a | 4693 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 4694 | |
47daa70f | 4695 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4696 | return FALSE; |
3af9a47b | 4697 | |
46d1c23b | 4698 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4699 | seg->segname[16] = '\0'; |
1e8a024a | 4700 | |
46d1c23b TG |
4701 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
4702 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
4703 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
4704 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
4705 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4706 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4707 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4708 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
4709 | } |
4710 | else | |
4711 | { | |
46d1c23b TG |
4712 | struct mach_o_segment_command_32_external raw; |
4713 | ||
1e8a024a TG |
4714 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
4715 | ||
47daa70f | 4716 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4717 | return FALSE; |
1e8a024a | 4718 | |
46d1c23b | 4719 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4720 | seg->segname[16] = '\0'; |
1e8a024a | 4721 | |
46d1c23b TG |
4722 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
4723 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
4724 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
4725 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
4726 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4727 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4728 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4729 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 4730 | } |
9d4b6009 TG |
4731 | seg->sect_head = NULL; |
4732 | seg->sect_tail = NULL; | |
3af9a47b | 4733 | |
f1bde64c | 4734 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 4735 | { |
f1bde64c | 4736 | asection *sec; |
a95a4550 | 4737 | |
47daa70f | 4738 | sec = bfd_mach_o_read_section (abfd, seg->initprot, wide); |
f1bde64c | 4739 | if (sec == NULL) |
07d6d2b8 | 4740 | return FALSE; |
f1bde64c | 4741 | |
c9ffd2ea TG |
4742 | bfd_mach_o_append_section_to_segment |
4743 | (seg, bfd_mach_o_get_mach_o_section (sec)); | |
3af9a47b NC |
4744 | } |
4745 | ||
452216ab | 4746 | return TRUE; |
3af9a47b NC |
4747 | } |
4748 | ||
452216ab | 4749 | static bfd_boolean |
ab273af8 | 4750 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4751 | { |
ab273af8 | 4752 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
4753 | } |
4754 | ||
452216ab | 4755 | static bfd_boolean |
ab273af8 | 4756 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4757 | { |
ab273af8 | 4758 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
4759 | } |
4760 | ||
452216ab | 4761 | static bfd_boolean |
ab273af8 | 4762 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4763 | { |
47daa70f | 4764 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
46d1c23b TG |
4765 | struct mach_o_load_command_external raw; |
4766 | unsigned int cmd; | |
3af9a47b | 4767 | |
046b007d | 4768 | /* Read command type and length. */ |
47daa70f | 4769 | if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0 |
46d1c23b | 4770 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
452216ab | 4771 | return FALSE; |
3af9a47b | 4772 | |
46d1c23b TG |
4773 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
4774 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; | |
4775 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; | |
4776 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3af9a47b NC |
4777 | |
4778 | switch (command->type) | |
4779 | { | |
4780 | case BFD_MACH_O_LC_SEGMENT: | |
452216ab TG |
4781 | if (!bfd_mach_o_read_segment_32 (abfd, command)) |
4782 | return FALSE; | |
1e8a024a TG |
4783 | break; |
4784 | case BFD_MACH_O_LC_SEGMENT_64: | |
452216ab TG |
4785 | if (!bfd_mach_o_read_segment_64 (abfd, command)) |
4786 | return FALSE; | |
3af9a47b NC |
4787 | break; |
4788 | case BFD_MACH_O_LC_SYMTAB: | |
452216ab TG |
4789 | if (!bfd_mach_o_read_symtab (abfd, command)) |
4790 | return FALSE; | |
3af9a47b NC |
4791 | break; |
4792 | case BFD_MACH_O_LC_SYMSEG: | |
4793 | break; | |
4794 | case BFD_MACH_O_LC_THREAD: | |
4795 | case BFD_MACH_O_LC_UNIXTHREAD: | |
452216ab TG |
4796 | if (!bfd_mach_o_read_thread (abfd, command)) |
4797 | return FALSE; | |
3af9a47b NC |
4798 | break; |
4799 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
4800 | case BFD_MACH_O_LC_ID_DYLINKER: | |
10be66a4 | 4801 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
452216ab TG |
4802 | if (!bfd_mach_o_read_dylinker (abfd, command)) |
4803 | return FALSE; | |
3af9a47b NC |
4804 | break; |
4805 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4806 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
3af9a47b NC |
4807 | case BFD_MACH_O_LC_ID_DYLIB: |
4808 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 4809 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4810 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
452216ab TG |
4811 | if (!bfd_mach_o_read_dylib (abfd, command)) |
4812 | return FALSE; | |
3af9a47b NC |
4813 | break; |
4814 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
452216ab TG |
4815 | if (!bfd_mach_o_read_prebound_dylib (abfd, command)) |
4816 | return FALSE; | |
3af9a47b NC |
4817 | break; |
4818 | case BFD_MACH_O_LC_LOADFVMLIB: | |
4819 | case BFD_MACH_O_LC_IDFVMLIB: | |
452216ab TG |
4820 | if (!bfd_mach_o_read_fvmlib (abfd, command)) |
4821 | return FALSE; | |
9f4a5bd1 | 4822 | break; |
3af9a47b NC |
4823 | case BFD_MACH_O_LC_IDENT: |
4824 | case BFD_MACH_O_LC_FVMFILE: | |
4825 | case BFD_MACH_O_LC_PREPAGE: | |
4826 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 4827 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 4828 | break; |
3af9a47b | 4829 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
4830 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
4831 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
4832 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 4833 | case BFD_MACH_O_LC_RPATH: |
452216ab | 4834 | if (!bfd_mach_o_read_str (abfd, command)) |
07d6d2b8 | 4835 | return FALSE; |
3af9a47b NC |
4836 | break; |
4837 | case BFD_MACH_O_LC_DYSYMTAB: | |
452216ab TG |
4838 | if (!bfd_mach_o_read_dysymtab (abfd, command)) |
4839 | return FALSE; | |
3af9a47b | 4840 | break; |
3af9a47b | 4841 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
452216ab TG |
4842 | if (!bfd_mach_o_read_prebind_cksum (abfd, command)) |
4843 | return FALSE; | |
7a79c514 TG |
4844 | break; |
4845 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
452216ab TG |
4846 | if (!bfd_mach_o_read_twolevel_hints (abfd, command)) |
4847 | return FALSE; | |
3af9a47b | 4848 | break; |
15e1c58a | 4849 | case BFD_MACH_O_LC_UUID: |
452216ab TG |
4850 | if (!bfd_mach_o_read_uuid (abfd, command)) |
4851 | return FALSE; | |
15e1c58a TG |
4852 | break; |
4853 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 4854 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 4855 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
1778ad74 TG |
4856 | case BFD_MACH_O_LC_DATA_IN_CODE: |
4857 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: | |
47daa70f | 4858 | case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT: |
452216ab TG |
4859 | if (!bfd_mach_o_read_linkedit (abfd, command)) |
4860 | return FALSE; | |
15e1c58a | 4861 | break; |
fc55a902 TG |
4862 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
4863 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
452216ab | 4864 | return FALSE; |
fc55a902 | 4865 | break; |
47daa70f TG |
4866 | case BFD_MACH_O_LC_ENCRYPTION_INFO_64: |
4867 | if (!bfd_mach_o_read_encryption_info_64 (abfd, command)) | |
4868 | return FALSE; | |
4869 | break; | |
ad86f1fb | 4870 | case BFD_MACH_O_LC_DYLD_INFO: |
452216ab TG |
4871 | if (!bfd_mach_o_read_dyld_info (abfd, command)) |
4872 | return FALSE; | |
ad86f1fb | 4873 | break; |
edbdea0e TG |
4874 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
4875 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
47daa70f | 4876 | case BFD_MACH_O_LC_VERSION_MIN_WATCHOS: |
edbdea0e | 4877 | if (!bfd_mach_o_read_version_min (abfd, command)) |
452216ab | 4878 | return FALSE; |
edbdea0e | 4879 | break; |
1778ad74 TG |
4880 | case BFD_MACH_O_LC_MAIN: |
4881 | if (!bfd_mach_o_read_main (abfd, command)) | |
452216ab | 4882 | return FALSE; |
1778ad74 TG |
4883 | break; |
4884 | case BFD_MACH_O_LC_SOURCE_VERSION: | |
4885 | if (!bfd_mach_o_read_source_version (abfd, command)) | |
452216ab | 4886 | return FALSE; |
1778ad74 | 4887 | break; |
3af9a47b | 4888 | default: |
86eafac0 | 4889 | command->len = 0; |
871b3ab2 | 4890 | _bfd_error_handler (_("%pB: unknown load command %#x"), |
d42c267e | 4891 | abfd, command->type); |
86eafac0 | 4892 | return FALSE; |
3af9a47b NC |
4893 | } |
4894 | ||
452216ab | 4895 | return TRUE; |
3af9a47b NC |
4896 | } |
4897 | ||
4898 | static void | |
116c20d2 | 4899 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 4900 | { |
046b007d | 4901 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea | 4902 | bfd_mach_o_load_command *cmd; |
3af9a47b | 4903 | long csect = 0; |
a95a4550 | 4904 | |
15e1c58a | 4905 | /* Count total number of sections. */ |
3af9a47b NC |
4906 | mdata->nsects = 0; |
4907 | ||
c9ffd2ea | 4908 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4909 | { |
c9ffd2ea TG |
4910 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4911 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4912 | { |
c9ffd2ea | 4913 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
e84d6fca | 4914 | |
3af9a47b NC |
4915 | mdata->nsects += seg->nsects; |
4916 | } | |
4917 | } | |
4918 | ||
15e1c58a | 4919 | /* Allocate sections array. */ |
64d29018 NC |
4920 | mdata->sections = bfd_alloc2 (abfd, |
4921 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
15e1c58a TG |
4922 | |
4923 | /* Fill the array. */ | |
3af9a47b NC |
4924 | csect = 0; |
4925 | ||
c9ffd2ea | 4926 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4927 | { |
c9ffd2ea TG |
4928 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4929 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4930 | { |
c9ffd2ea | 4931 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
07d6d2b8 | 4932 | bfd_mach_o_section *sec; |
3af9a47b NC |
4933 | |
4934 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); | |
4935 | ||
07d6d2b8 | 4936 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
f1bde64c | 4937 | mdata->sections[csect++] = sec; |
3af9a47b NC |
4938 | } |
4939 | } | |
4940 | } | |
4941 | ||
afbb9e17 | 4942 | static bfd_boolean |
116c20d2 | 4943 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 4944 | { |
046b007d | 4945 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
4946 | bfd_mach_o_thread_command *thr = NULL; |
4947 | bfd_mach_o_load_command *cmd; | |
3af9a47b NC |
4948 | unsigned long i; |
4949 | ||
c9ffd2ea TG |
4950 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
4951 | if (cmd->type == BFD_MACH_O_LC_THREAD | |
4952 | || cmd->type == BFD_MACH_O_LC_UNIXTHREAD) | |
afbb9e17 | 4953 | { |
07d6d2b8 AM |
4954 | thr = &cmd->command.thread; |
4955 | break; | |
afbb9e17 | 4956 | } |
c9ffd2ea | 4957 | else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1) |
c0fd7846 | 4958 | { |
c9ffd2ea | 4959 | bfd_mach_o_main_command *main_cmd = &cmd->command.main; |
c0fd7846 | 4960 | bfd_mach_o_section *text_sect = mdata->sections[0]; |
c9ffd2ea | 4961 | |
c0fd7846 TG |
4962 | if (text_sect) |
4963 | { | |
4964 | abfd->start_address = main_cmd->entryoff | |
4965 | + (text_sect->addr - text_sect->offset); | |
4966 | return TRUE; | |
4967 | } | |
4968 | } | |
3af9a47b | 4969 | |
5ee43bc4 | 4970 | /* An object file has no start address, so do not fail if not found. */ |
c9ffd2ea | 4971 | if (thr == NULL) |
5ee43bc4 | 4972 | return TRUE; |
3af9a47b | 4973 | |
afbb9e17 | 4974 | /* FIXME: create a subtarget hook ? */ |
c9ffd2ea | 4975 | for (i = 0; i < thr->nflavours; i++) |
3af9a47b | 4976 | { |
a95a4550 | 4977 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
c9ffd2ea | 4978 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
4979 | { |
4980 | unsigned char buf[4]; | |
4981 | ||
c9ffd2ea | 4982 | if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0 |
07d6d2b8 | 4983 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 4984 | return FALSE; |
3af9a47b NC |
4985 | |
4986 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4987 | } | |
a95a4550 | 4988 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
c9ffd2ea | 4989 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3af9a47b NC |
4990 | { |
4991 | unsigned char buf[4]; | |
4992 | ||
c9ffd2ea | 4993 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
07d6d2b8 | 4994 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 4995 | return FALSE; |
3af9a47b NC |
4996 | |
4997 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
4998 | } | |
1e8a024a | 4999 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
07d6d2b8 AM |
5000 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
5001 | { | |
5002 | unsigned char buf[8]; | |
1e8a024a | 5003 | |
07d6d2b8 AM |
5004 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
5005 | || bfd_bread (buf, 8, abfd) != 8) | |
5006 | return FALSE; | |
1e8a024a | 5007 | |
07d6d2b8 AM |
5008 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5009 | } | |
1e8a024a | 5010 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) |
07d6d2b8 AM |
5011 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) |
5012 | { | |
5013 | unsigned char buf[8]; | |
1e8a024a | 5014 | |
07d6d2b8 AM |
5015 | if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
5016 | || bfd_bread (buf, 8, abfd) != 8) | |
5017 | return FALSE; | |
1e8a024a | 5018 | |
07d6d2b8 AM |
5019 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5020 | } | |
3af9a47b NC |
5021 | } |
5022 | ||
afbb9e17 | 5023 | return TRUE; |
3af9a47b NC |
5024 | } |
5025 | ||
42fa0891 TG |
5026 | bfd_boolean |
5027 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
07d6d2b8 AM |
5028 | enum bfd_architecture arch, |
5029 | unsigned long machine) | |
42fa0891 TG |
5030 | { |
5031 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
5032 | ||
5033 | /* If this isn't the right architecture for this backend, and this | |
5034 | isn't the generic backend, fail. */ | |
5035 | if (arch != bed->arch | |
5036 | && arch != bfd_arch_unknown | |
5037 | && bed->arch != bfd_arch_unknown) | |
5038 | return FALSE; | |
5039 | ||
5040 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
5041 | } | |
5042 | ||
afbb9e17 | 5043 | static bfd_boolean |
116c20d2 NC |
5044 | bfd_mach_o_scan (bfd *abfd, |
5045 | bfd_mach_o_header *header, | |
5046 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
5047 | { |
5048 | unsigned int i; | |
3af9a47b NC |
5049 | enum bfd_architecture cputype; |
5050 | unsigned long cpusubtype; | |
1e8a024a TG |
5051 | unsigned int hdrsize; |
5052 | ||
c2f09c75 | 5053 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 5054 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 5055 | |
3af9a47b | 5056 | mdata->header = *header; |
3af9a47b | 5057 | |
154a1ee5 | 5058 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
5059 | switch (header->filetype) |
5060 | { | |
5061 | case BFD_MACH_O_MH_OBJECT: | |
5062 | abfd->flags |= HAS_RELOC; | |
5063 | break; | |
5064 | case BFD_MACH_O_MH_EXECUTE: | |
5065 | abfd->flags |= EXEC_P; | |
5066 | break; | |
5067 | case BFD_MACH_O_MH_DYLIB: | |
5068 | case BFD_MACH_O_MH_BUNDLE: | |
5069 | abfd->flags |= DYNAMIC; | |
5070 | break; | |
5071 | } | |
5072 | ||
3af9a47b NC |
5073 | abfd->tdata.mach_o_data = mdata; |
5074 | ||
e84d6fca AM |
5075 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
5076 | &cputype, &cpusubtype); | |
3af9a47b NC |
5077 | if (cputype == bfd_arch_unknown) |
5078 | { | |
4eca0228 | 5079 | _bfd_error_handler |
695344c0 | 5080 | /* xgettext:c-format */ |
07d6d2b8 AM |
5081 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), |
5082 | header->cputype, header->cpusubtype); | |
afbb9e17 | 5083 | return FALSE; |
3af9a47b NC |
5084 | } |
5085 | ||
5086 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 5087 | |
3af9a47b NC |
5088 | if (header->ncmds != 0) |
5089 | { | |
c9ffd2ea TG |
5090 | bfd_mach_o_load_command *cmd; |
5091 | ||
5092 | mdata->first_command = NULL; | |
5093 | mdata->last_command = NULL; | |
64d29018 NC |
5094 | |
5095 | cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command)); | |
c9ffd2ea | 5096 | if (cmd == NULL) |
afbb9e17 | 5097 | return FALSE; |
a95a4550 | 5098 | |
3af9a47b NC |
5099 | for (i = 0; i < header->ncmds; i++) |
5100 | { | |
c9ffd2ea TG |
5101 | bfd_mach_o_load_command *cur = &cmd[i]; |
5102 | ||
5103 | bfd_mach_o_append_command (abfd, cur); | |
3af9a47b NC |
5104 | |
5105 | if (i == 0) | |
1e8a024a | 5106 | cur->offset = hdrsize; |
3af9a47b NC |
5107 | else |
5108 | { | |
c9ffd2ea | 5109 | bfd_mach_o_load_command *prev = &cmd[i - 1]; |
3af9a47b NC |
5110 | cur->offset = prev->offset + prev->len; |
5111 | } | |
5112 | ||
452216ab | 5113 | if (!bfd_mach_o_read_command (abfd, cur)) |
afbb9e17 | 5114 | return FALSE; |
a95a4550 | 5115 | } |
3af9a47b NC |
5116 | } |
5117 | ||
c0fd7846 TG |
5118 | /* Sections should be flatten before scanning start address. */ |
5119 | bfd_mach_o_flatten_sections (abfd); | |
5120 | if (!bfd_mach_o_scan_start_address (abfd)) | |
afbb9e17 | 5121 | return FALSE; |
3af9a47b | 5122 | |
afbb9e17 | 5123 | return TRUE; |
3af9a47b NC |
5124 | } |
5125 | ||
b34976b6 | 5126 | bfd_boolean |
154a1ee5 | 5127 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
5128 | { |
5129 | bfd_mach_o_data_struct *mdata = NULL; | |
5130 | ||
b30a5d18 | 5131 | mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 5132 | if (mdata == NULL) |
b34976b6 | 5133 | return FALSE; |
3af9a47b NC |
5134 | abfd->tdata.mach_o_data = mdata; |
5135 | ||
5136 | mdata->header.magic = 0; | |
5137 | mdata->header.cputype = 0; | |
5138 | mdata->header.cpusubtype = 0; | |
5139 | mdata->header.filetype = 0; | |
5140 | mdata->header.ncmds = 0; | |
5141 | mdata->header.sizeofcmds = 0; | |
5142 | mdata->header.flags = 0; | |
5143 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
c9ffd2ea TG |
5144 | mdata->first_command = NULL; |
5145 | mdata->last_command = NULL; | |
3af9a47b NC |
5146 | mdata->nsects = 0; |
5147 | mdata->sections = NULL; | |
4434114c | 5148 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 5149 | |
b34976b6 | 5150 | return TRUE; |
3af9a47b NC |
5151 | } |
5152 | ||
42fa0891 TG |
5153 | static bfd_boolean |
5154 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
5155 | { | |
5156 | bfd_mach_o_data_struct *mdata; | |
5157 | ||
5158 | if (!bfd_mach_o_mkobject_init (abfd)) | |
5159 | return FALSE; | |
5160 | ||
5161 | mdata = bfd_mach_o_get_data (abfd); | |
5162 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
5163 | mdata->header.cputype = 0; | |
5164 | mdata->header.cpusubtype = 0; | |
5165 | mdata->header.byteorder = abfd->xvec->byteorder; | |
5166 | mdata->header.version = 1; | |
5167 | ||
5168 | return TRUE; | |
5169 | } | |
5170 | ||
3af9a47b | 5171 | const bfd_target * |
154a1ee5 | 5172 | bfd_mach_o_header_p (bfd *abfd, |
47daa70f | 5173 | file_ptr hdr_off, |
07d6d2b8 AM |
5174 | bfd_mach_o_filetype filetype, |
5175 | bfd_mach_o_cpu_type cputype) | |
3af9a47b NC |
5176 | { |
5177 | bfd_mach_o_header header; | |
c9ba0c87 | 5178 | bfd_mach_o_data_struct *mdata; |
3af9a47b | 5179 | |
47daa70f | 5180 | if (!bfd_mach_o_read_header (abfd, hdr_off, &header)) |
e84d6fca | 5181 | goto wrong; |
3af9a47b | 5182 | |
e84d6fca AM |
5183 | if (! (header.byteorder == BFD_ENDIAN_BIG |
5184 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 5185 | { |
d42c267e AM |
5186 | _bfd_error_handler (_("unknown header byte-order value %#x"), |
5187 | header.byteorder); | |
e84d6fca | 5188 | goto wrong; |
3af9a47b NC |
5189 | } |
5190 | ||
e84d6fca AM |
5191 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
5192 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
5193 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
5194 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
5195 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
5196 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
5197 | goto wrong; | |
3af9a47b | 5198 | |
154a1ee5 TG |
5199 | /* Check cputype and filetype. |
5200 | In case of wildcard, do not accept magics that are handled by existing | |
5201 | targets. */ | |
5202 | if (cputype) | |
5203 | { | |
5204 | if (header.cputype != cputype) | |
07d6d2b8 | 5205 | goto wrong; |
154a1ee5 | 5206 | } |
26954155 TG |
5207 | else |
5208 | { | |
5209 | #ifndef BFD64 | |
5210 | /* Do not recognize 64 architectures if not configured for 64bit targets. | |
5211 | This could happen only for generic targets. */ | |
5212 | if (mach_o_wide_p (&header)) | |
5213 | goto wrong; | |
5214 | #endif | |
5215 | } | |
b22161d6 | 5216 | |
154a1ee5 TG |
5217 | if (filetype) |
5218 | { | |
5219 | if (header.filetype != filetype) | |
07d6d2b8 | 5220 | goto wrong; |
154a1ee5 TG |
5221 | } |
5222 | else | |
5223 | { | |
5224 | switch (header.filetype) | |
07d6d2b8 AM |
5225 | { |
5226 | case BFD_MACH_O_MH_CORE: | |
5227 | /* Handled by core_p */ | |
5228 | goto wrong; | |
5229 | default: | |
5230 | break; | |
5231 | } | |
154a1ee5 TG |
5232 | } |
5233 | ||
c9ba0c87 AM |
5234 | mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata)); |
5235 | if (mdata == NULL) | |
e84d6fca | 5236 | goto fail; |
47daa70f | 5237 | mdata->hdr_offset = hdr_off; |
3af9a47b | 5238 | |
c9ba0c87 | 5239 | if (!bfd_mach_o_scan (abfd, &header, mdata)) |
e84d6fca | 5240 | goto wrong; |
a95a4550 | 5241 | |
3af9a47b | 5242 | return abfd->xvec; |
e84d6fca AM |
5243 | |
5244 | wrong: | |
5245 | bfd_set_error (bfd_error_wrong_format); | |
5246 | ||
5247 | fail: | |
e84d6fca | 5248 | return NULL; |
3af9a47b NC |
5249 | } |
5250 | ||
154a1ee5 TG |
5251 | static const bfd_target * |
5252 | bfd_mach_o_gen_object_p (bfd *abfd) | |
3af9a47b | 5253 | { |
47daa70f | 5254 | return bfd_mach_o_header_p (abfd, 0, 0, 0); |
154a1ee5 | 5255 | } |
e84d6fca | 5256 | |
154a1ee5 TG |
5257 | static const bfd_target * |
5258 | bfd_mach_o_gen_core_p (bfd *abfd) | |
5259 | { | |
47daa70f | 5260 | return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0); |
3af9a47b NC |
5261 | } |
5262 | ||
3cc27770 TG |
5263 | /* Return the base address of ABFD, ie the address at which the image is |
5264 | mapped. The possible initial pagezero is ignored. */ | |
5265 | ||
5266 | bfd_vma | |
5267 | bfd_mach_o_get_base_address (bfd *abfd) | |
5268 | { | |
5269 | bfd_mach_o_data_struct *mdata; | |
c9ffd2ea | 5270 | bfd_mach_o_load_command *cmd; |
3cc27770 TG |
5271 | |
5272 | /* Check for Mach-O. */ | |
5273 | if (!bfd_mach_o_valid (abfd)) | |
5274 | return 0; | |
5275 | mdata = bfd_mach_o_get_data (abfd); | |
5276 | ||
c9ffd2ea | 5277 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3cc27770 | 5278 | { |
3cc27770 TG |
5279 | if ((cmd->type == BFD_MACH_O_LC_SEGMENT |
5280 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64)) | |
5281 | { | |
5282 | struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment; | |
5283 | ||
5284 | if (segcmd->initprot != 0) | |
5285 | return segcmd->vmaddr; | |
5286 | } | |
5287 | } | |
5288 | return 0; | |
5289 | } | |
5290 | ||
3af9a47b NC |
5291 | typedef struct mach_o_fat_archentry |
5292 | { | |
5293 | unsigned long cputype; | |
5294 | unsigned long cpusubtype; | |
5295 | unsigned long offset; | |
5296 | unsigned long size; | |
5297 | unsigned long align; | |
3af9a47b NC |
5298 | } mach_o_fat_archentry; |
5299 | ||
5300 | typedef struct mach_o_fat_data_struct | |
5301 | { | |
5302 | unsigned long magic; | |
5303 | unsigned long nfat_arch; | |
5304 | mach_o_fat_archentry *archentries; | |
5305 | } mach_o_fat_data_struct; | |
5306 | ||
5307 | const bfd_target * | |
47daa70f | 5308 | bfd_mach_o_fat_archive_p (bfd *abfd) |
3af9a47b | 5309 | { |
e84d6fca | 5310 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 5311 | struct mach_o_fat_header_external hdr; |
3af9a47b NC |
5312 | unsigned long i; |
5313 | ||
c2f09c75 | 5314 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 5315 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 5316 | goto error; |
3af9a47b | 5317 | |
116c20d2 | 5318 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 5319 | if (adata == NULL) |
e84d6fca | 5320 | goto error; |
a95a4550 | 5321 | |
46d1c23b TG |
5322 | adata->magic = bfd_getb32 (hdr.magic); |
5323 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 5324 | if (adata->magic != 0xcafebabe) |
e84d6fca | 5325 | goto error; |
27cc28f9 AS |
5326 | /* Avoid matching Java bytecode files, which have the same magic number. |
5327 | In the Java bytecode file format this field contains the JVM version, | |
5328 | which starts at 43.0. */ | |
5329 | if (adata->nfat_arch > 30) | |
5330 | goto error; | |
3af9a47b | 5331 | |
c2f09c75 | 5332 | adata->archentries = |
64d29018 | 5333 | bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry)); |
3af9a47b | 5334 | if (adata->archentries == NULL) |
e84d6fca | 5335 | goto error; |
3af9a47b NC |
5336 | |
5337 | for (i = 0; i < adata->nfat_arch; i++) | |
5338 | { | |
46d1c23b TG |
5339 | struct mach_o_fat_arch_external arch; |
5340 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 5341 | goto error; |
46d1c23b TG |
5342 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
5343 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
5344 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
5345 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
5346 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
5347 | } |
5348 | ||
5349 | abfd->tdata.mach_o_fat_data = adata; | |
64d29018 | 5350 | |
3af9a47b | 5351 | return abfd->xvec; |
e84d6fca AM |
5352 | |
5353 | error: | |
5354 | if (adata != NULL) | |
5355 | bfd_release (abfd, adata); | |
5356 | bfd_set_error (bfd_error_wrong_format); | |
5357 | return NULL; | |
3af9a47b NC |
5358 | } |
5359 | ||
a4e241ca TG |
5360 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
5361 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
5362 | Set arelt_data and origin fields too. */ | |
5363 | ||
5364 | static void | |
5365 | bfd_mach_o_fat_member_init (bfd *abfd, | |
07d6d2b8 AM |
5366 | enum bfd_architecture arch_type, |
5367 | unsigned long arch_subtype, | |
5368 | mach_o_fat_archentry *entry) | |
a4e241ca TG |
5369 | { |
5370 | struct areltdata *areltdata; | |
5371 | /* Create the member filename. Use ARCH_NAME. */ | |
5372 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
5373 | ||
5374 | if (ap) | |
5375 | { | |
5376 | /* Use the architecture name if known. */ | |
1be5090b | 5377 | abfd->filename = xstrdup (ap->printable_name); |
a4e241ca TG |
5378 | } |
5379 | else | |
5380 | { | |
5381 | /* Forge a uniq id. */ | |
5382 | const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1; | |
1be5090b | 5383 | char *name = xmalloc (namelen); |
a4e241ca | 5384 | snprintf (name, namelen, "0x%lx-0x%lx", |
07d6d2b8 | 5385 | entry->cputype, entry->cpusubtype); |
a4e241ca TG |
5386 | abfd->filename = name; |
5387 | } | |
5388 | ||
06e7acd7 | 5389 | areltdata = bfd_zmalloc (sizeof (struct areltdata)); |
a4e241ca TG |
5390 | areltdata->parsed_size = entry->size; |
5391 | abfd->arelt_data = areltdata; | |
5392 | abfd->iostream = NULL; | |
5393 | abfd->origin = entry->offset; | |
5394 | } | |
5395 | ||
3af9a47b | 5396 | bfd * |
47daa70f | 5397 | bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 5398 | { |
e84d6fca | 5399 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
5400 | mach_o_fat_archentry *entry = NULL; |
5401 | unsigned long i; | |
15e1c58a | 5402 | bfd *nbfd; |
15e1c58a TG |
5403 | enum bfd_architecture arch_type; |
5404 | unsigned long arch_subtype; | |
3af9a47b | 5405 | |
e84d6fca | 5406 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
5407 | BFD_ASSERT (adata != NULL); |
5408 | ||
5409 | /* Find index of previous entry. */ | |
5410 | if (prev == NULL) | |
a4e241ca TG |
5411 | { |
5412 | /* Start at first one. */ | |
5413 | i = 0; | |
5414 | } | |
3af9a47b NC |
5415 | else |
5416 | { | |
a4e241ca | 5417 | /* Find index of PREV. */ |
3af9a47b NC |
5418 | for (i = 0; i < adata->nfat_arch; i++) |
5419 | { | |
15e1c58a | 5420 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
5421 | break; |
5422 | } | |
5423 | ||
5424 | if (i == adata->nfat_arch) | |
5425 | { | |
5426 | /* Not found. */ | |
5427 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 5428 | return NULL; |
3af9a47b | 5429 | } |
a4e241ca TG |
5430 | |
5431 | /* Get next entry. */ | |
5432 | i++; | |
5433 | } | |
a95a4550 | 5434 | |
3af9a47b NC |
5435 | if (i >= adata->nfat_arch) |
5436 | { | |
5437 | bfd_set_error (bfd_error_no_more_archived_files); | |
5438 | return NULL; | |
5439 | } | |
5440 | ||
5441 | entry = &adata->archentries[i]; | |
15e1c58a TG |
5442 | nbfd = _bfd_new_bfd_contained_in (archive); |
5443 | if (nbfd == NULL) | |
5444 | return NULL; | |
5445 | ||
15e1c58a TG |
5446 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
5447 | &arch_type, &arch_subtype); | |
846b9259 | 5448 | |
a4e241ca TG |
5449 | bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry); |
5450 | ||
846b9259 | 5451 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 5452 | |
15e1c58a | 5453 | return nbfd; |
3af9a47b NC |
5454 | } |
5455 | ||
15bbba8d TG |
5456 | /* Analogous to stat call. */ |
5457 | ||
5458 | static int | |
5459 | bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf) | |
5460 | { | |
5461 | if (abfd->arelt_data == NULL) | |
5462 | { | |
5463 | bfd_set_error (bfd_error_invalid_operation); | |
5464 | return -1; | |
5465 | } | |
5466 | ||
5467 | buf->st_mtime = 0; | |
5468 | buf->st_uid = 0; | |
5469 | buf->st_gid = 0; | |
5470 | buf->st_mode = 0644; | |
5471 | buf->st_size = arelt_size (abfd); | |
5472 | ||
5473 | return 0; | |
5474 | } | |
5475 | ||
846b9259 TG |
5476 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
5477 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
5478 | and ARCH, returns it. | |
5479 | In other case, returns NULL. | |
5480 | This function allows transparent uses of fat images. */ | |
a4e241ca | 5481 | |
846b9259 TG |
5482 | bfd * |
5483 | bfd_mach_o_fat_extract (bfd *abfd, | |
5484 | bfd_format format, | |
5485 | const bfd_arch_info_type *arch) | |
5486 | { | |
5487 | bfd *res; | |
5488 | mach_o_fat_data_struct *adata; | |
5489 | unsigned int i; | |
5490 | ||
5491 | if (bfd_check_format (abfd, format)) | |
5492 | { | |
5493 | if (bfd_get_arch_info (abfd) == arch) | |
5494 | return abfd; | |
5495 | return NULL; | |
5496 | } | |
5497 | if (!bfd_check_format (abfd, bfd_archive) | |
5498 | || abfd->xvec != &mach_o_fat_vec) | |
5499 | return NULL; | |
c2f09c75 | 5500 | |
846b9259 TG |
5501 | /* This is a Mach-O fat image. */ |
5502 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
5503 | BFD_ASSERT (adata != NULL); | |
5504 | ||
5505 | for (i = 0; i < adata->nfat_arch; i++) | |
5506 | { | |
5507 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
5508 | enum bfd_architecture cpu_type; | |
5509 | unsigned long cpu_subtype; | |
5510 | ||
5511 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
5512 | &cpu_type, &cpu_subtype); | |
5513 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
5514 | continue; | |
5515 | ||
5516 | /* The architecture is found. */ | |
5517 | res = _bfd_new_bfd_contained_in (abfd); | |
5518 | if (res == NULL) | |
5519 | return NULL; | |
5520 | ||
a4e241ca | 5521 | bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e); |
846b9259 TG |
5522 | |
5523 | if (bfd_check_format (res, format)) | |
5524 | { | |
5525 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
5526 | return res; | |
5527 | } | |
5528 | bfd_close (res); | |
5529 | return NULL; | |
5530 | } | |
5531 | ||
5532 | return NULL; | |
5533 | } | |
5534 | ||
3af9a47b | 5535 | int |
116c20d2 NC |
5536 | bfd_mach_o_lookup_command (bfd *abfd, |
5537 | bfd_mach_o_load_command_type type, | |
5538 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 5539 | { |
c9ffd2ea TG |
5540 | struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
5541 | struct bfd_mach_o_load_command *cmd; | |
5542 | unsigned int num; | |
3af9a47b | 5543 | |
c9ffd2ea | 5544 | BFD_ASSERT (mdata != NULL); |
3af9a47b NC |
5545 | BFD_ASSERT (mcommand != NULL); |
5546 | ||
5547 | num = 0; | |
c9ffd2ea | 5548 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5549 | { |
3af9a47b NC |
5550 | if (cmd->type != type) |
5551 | continue; | |
5552 | ||
5553 | if (num == 0) | |
c9ffd2ea | 5554 | *mcommand = cmd; |
3af9a47b NC |
5555 | num++; |
5556 | } | |
5557 | ||
3af9a47b NC |
5558 | return num; |
5559 | } | |
5560 | ||
5561 | unsigned long | |
116c20d2 | 5562 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
5563 | { |
5564 | switch (type) | |
5565 | { | |
5566 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
5567 | return 0x04000000; | |
3af9a47b NC |
5568 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
5569 | return 0xc0000000; | |
5570 | case BFD_MACH_O_CPU_TYPE_I386: | |
5571 | return 0xc0000000; | |
5572 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
5573 | return 0xf0000000; | |
3af9a47b | 5574 | case BFD_MACH_O_CPU_TYPE_HPPA: |
e84d6fca | 5575 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
5576 | default: |
5577 | return 0; | |
5578 | } | |
5579 | } | |
5580 | ||
ab76eeaf IS |
5581 | /* The following two tables should be kept, as far as possible, in order of |
5582 | most frequently used entries to optimize their use from gas. */ | |
5583 | ||
c5012cd8 | 5584 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
5585 | { |
5586 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 5587 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
5588 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
5589 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
5590 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
5591 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 5592 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 5593 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
5594 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
5595 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
5596 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
5597 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 5598 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
5599 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
5600 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 5601 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
5602 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
5603 | { NULL, 0} | |
5604 | }; | |
5605 | ||
c5012cd8 | 5606 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 5607 | { |
ab76eeaf IS |
5608 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
5609 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
5610 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
5611 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 5612 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
5613 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
5614 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
5615 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
5616 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 5617 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 5618 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
5619 | { NULL, 0} |
5620 | }; | |
5621 | ||
a4551119 | 5622 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
5623 | |
5624 | unsigned int | |
ab76eeaf | 5625 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 5626 | { |
afbb9e17 | 5627 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 5628 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
5629 | |
5630 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
5631 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
5632 | { |
5633 | /* We found it... does the target support it? */ | |
5634 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
5635 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
5636 | return x->val; /* OK. */ | |
5637 | else | |
5638 | break; /* Not supported. */ | |
5639 | } | |
a4551119 TG |
5640 | /* Maximum section ID = 0xff. */ |
5641 | return 256; | |
53d58d96 TG |
5642 | } |
5643 | ||
5644 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
5645 | ||
5646 | unsigned int | |
5647 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
5648 | { | |
afbb9e17 | 5649 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
5650 | |
5651 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
5652 | if (strcmp (x->name, name) == 0) | |
5653 | return x->val; | |
5654 | return (unsigned int)-1; | |
5655 | } | |
5656 | ||
3af9a47b | 5657 | int |
116c20d2 NC |
5658 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
5659 | unsigned char **rbuf, | |
5660 | unsigned int *rlen) | |
3af9a47b | 5661 | { |
046b007d | 5662 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 5663 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
c9ffd2ea | 5664 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5665 | |
c9ffd2ea | 5666 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5667 | { |
c9ffd2ea | 5668 | bfd_mach_o_segment_command *seg; |
3af9a47b | 5669 | |
c9ffd2ea | 5670 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) |
3af9a47b NC |
5671 | continue; |
5672 | ||
c9ffd2ea | 5673 | seg = &cmd->command.segment; |
3af9a47b NC |
5674 | |
5675 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
5676 | { | |
5677 | unsigned long start = seg->fileoff; | |
5678 | unsigned long end = seg->fileoff + seg->filesize; | |
5679 | unsigned char *buf = bfd_malloc (1024); | |
5680 | unsigned long size = 1024; | |
5681 | ||
5682 | for (;;) | |
5683 | { | |
5684 | bfd_size_type nread = 0; | |
5685 | unsigned long offset; | |
5686 | int found_nonnull = 0; | |
5687 | ||
5688 | if (size > (end - start)) | |
5689 | size = (end - start); | |
5690 | ||
515ef31d NC |
5691 | buf = bfd_realloc_or_free (buf, size); |
5692 | if (buf == NULL) | |
5693 | return -1; | |
c2f09c75 TG |
5694 | |
5695 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
07d6d2b8 AM |
5696 | { |
5697 | free (buf); | |
5698 | return -1; | |
5699 | } | |
c2f09c75 | 5700 | |
3af9a47b | 5701 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 5702 | |
3af9a47b | 5703 | if (nread != size) |
515ef31d NC |
5704 | { |
5705 | free (buf); | |
5706 | return -1; | |
5707 | } | |
a95a4550 | 5708 | |
3af9a47b NC |
5709 | for (offset = 4; offset <= size; offset += 4) |
5710 | { | |
e84d6fca | 5711 | unsigned long val; |
3af9a47b | 5712 | |
e84d6fca | 5713 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
5714 | if (! found_nonnull) |
5715 | { | |
5716 | if (val != 0) | |
5717 | found_nonnull = 1; | |
5718 | } | |
5719 | else if (val == 0x0) | |
5720 | { | |
e84d6fca AM |
5721 | unsigned long bottom; |
5722 | unsigned long top; | |
3af9a47b | 5723 | |
e84d6fca AM |
5724 | bottom = seg->fileoff + seg->filesize - offset; |
5725 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
5726 | *rbuf = bfd_malloc (top - bottom); |
5727 | *rlen = top - bottom; | |
5728 | ||
5729 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 5730 | free (buf); |
3af9a47b NC |
5731 | return 0; |
5732 | } | |
5733 | } | |
5734 | ||
5735 | if (size == (end - start)) | |
5736 | break; | |
5737 | ||
5738 | size *= 2; | |
5739 | } | |
515ef31d NC |
5740 | |
5741 | free (buf); | |
3af9a47b NC |
5742 | } |
5743 | } | |
5744 | ||
5745 | return -1; | |
5746 | } | |
5747 | ||
5748 | char * | |
116c20d2 | 5749 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
5750 | { |
5751 | unsigned char *buf = NULL; | |
5752 | unsigned int len = 0; | |
452216ab | 5753 | int ret; |
3af9a47b NC |
5754 | |
5755 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
5756 | if (ret < 0) | |
5757 | return NULL; | |
5758 | ||
f075ee0c | 5759 | return (char *) buf; |
3af9a47b NC |
5760 | } |
5761 | ||
5762 | int | |
116c20d2 | 5763 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
5764 | { |
5765 | return 0; | |
5766 | } | |
5767 | ||
2ca7691a TG |
5768 | static bfd_mach_o_uuid_command * |
5769 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
5770 | { | |
09fe2662 | 5771 | bfd_mach_o_load_command *uuid_cmd = NULL; |
2ca7691a | 5772 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); |
09fe2662 | 5773 | if (ncmd != 1 || uuid_cmd == NULL) |
2ca7691a TG |
5774 | return FALSE; |
5775 | return &uuid_cmd->command.uuid; | |
5776 | } | |
5777 | ||
5778 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
5779 | ||
5780 | static bfd_boolean | |
5781 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) | |
5782 | { | |
5783 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
5784 | ||
5785 | BFD_ASSERT (abfd); | |
5786 | BFD_ASSERT (uuid_cmd); | |
5787 | ||
5788 | if (!bfd_check_format (abfd, bfd_object)) | |
5789 | return FALSE; | |
5790 | ||
5791 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
5792 | || bfd_mach_o_get_data (abfd) == NULL | |
5793 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
5794 | return FALSE; | |
5795 | ||
5796 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5797 | if (dsym_uuid_cmd == NULL) | |
5798 | return FALSE; | |
5799 | ||
5800 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
07d6d2b8 | 5801 | sizeof (uuid_cmd->uuid)) != 0) |
2ca7691a TG |
5802 | return FALSE; |
5803 | ||
5804 | return TRUE; | |
5805 | } | |
5806 | ||
5807 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
5808 | The caller is responsible for closing the returned BFD object and | |
5809 | its my_archive if the returned BFD is in a fat dSYM. */ | |
5810 | ||
5811 | static bfd * | |
5812 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
07d6d2b8 AM |
5813 | const bfd_mach_o_uuid_command *uuid_cmd, |
5814 | const bfd_arch_info_type *arch) | |
2ca7691a TG |
5815 | { |
5816 | bfd *base_dsym_bfd, *dsym_bfd; | |
5817 | ||
5818 | BFD_ASSERT (uuid_cmd); | |
5819 | ||
5820 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
5821 | if (base_dsym_bfd == NULL) | |
5822 | return NULL; | |
5823 | ||
5824 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
5825 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
5826 | return dsym_bfd; | |
5827 | ||
5828 | bfd_close (dsym_bfd); | |
5829 | if (base_dsym_bfd != dsym_bfd) | |
5830 | bfd_close (base_dsym_bfd); | |
5831 | ||
5832 | return NULL; | |
5833 | } | |
5834 | ||
5835 | /* Return a BFD created from a dSYM file for ABFD. | |
5836 | The caller is responsible for closing the returned BFD object, its | |
5837 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
5838 | ||
5839 | static bfd * | |
5840 | bfd_mach_o_follow_dsym (bfd *abfd) | |
5841 | { | |
5842 | char *dsym_filename; | |
5843 | bfd_mach_o_uuid_command *uuid_cmd; | |
5844 | bfd *dsym_bfd, *base_bfd = abfd; | |
5845 | const char *base_basename; | |
5846 | ||
5847 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
5848 | return NULL; | |
5849 | ||
b0cffb47 | 5850 | if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive)) |
2ca7691a TG |
5851 | base_bfd = abfd->my_archive; |
5852 | /* BFD may have been opened from a stream. */ | |
5853 | if (base_bfd->filename == NULL) | |
5854 | { | |
5855 | bfd_set_error (bfd_error_invalid_operation); | |
5856 | return NULL; | |
5857 | } | |
5858 | base_basename = lbasename (base_bfd->filename); | |
5859 | ||
5860 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5861 | if (uuid_cmd == NULL) | |
5862 | return NULL; | |
5863 | ||
5864 | /* TODO: We assume the DWARF file has the same as the binary's. | |
5865 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
5866 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
5867 | */ | |
5868 | dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename) | |
07d6d2b8 AM |
5869 | + strlen (dsym_subdir) + 1 |
5870 | + strlen (base_basename) + 1); | |
2ca7691a | 5871 | sprintf (dsym_filename, "%s%s/%s", |
07d6d2b8 | 5872 | base_bfd->filename, dsym_subdir, base_basename); |
2ca7691a TG |
5873 | |
5874 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
07d6d2b8 | 5875 | bfd_get_arch_info (abfd)); |
2ca7691a TG |
5876 | if (dsym_bfd == NULL) |
5877 | free (dsym_filename); | |
5878 | ||
5879 | return dsym_bfd; | |
5880 | } | |
5881 | ||
d9071b0c TG |
5882 | bfd_boolean |
5883 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
d9071b0c | 5884 | asymbol **symbols, |
fb167eb2 | 5885 | asection *section, |
d9071b0c TG |
5886 | bfd_vma offset, |
5887 | const char **filename_ptr, | |
5888 | const char **functionname_ptr, | |
fb167eb2 AM |
5889 | unsigned int *line_ptr, |
5890 | unsigned int *discriminator_ptr) | |
d9071b0c TG |
5891 | { |
5892 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 5893 | if (mdata == NULL) |
d9071b0c | 5894 | return FALSE; |
2ca7691a TG |
5895 | switch (mdata->header.filetype) |
5896 | { | |
5897 | case BFD_MACH_O_MH_OBJECT: | |
5898 | break; | |
5899 | case BFD_MACH_O_MH_EXECUTE: | |
5900 | case BFD_MACH_O_MH_DYLIB: | |
5901 | case BFD_MACH_O_MH_BUNDLE: | |
5902 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
5903 | if (mdata->dwarf2_find_line_info == NULL) | |
07d6d2b8 AM |
5904 | { |
5905 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
5906 | /* When we couldn't find dSYM for this binary, we look for | |
5907 | the debug information in the binary itself. In this way, | |
5908 | we won't try finding separated dSYM again because | |
5909 | mdata->dwarf2_find_line_info will be filled. */ | |
5910 | if (! mdata->dsym_bfd) | |
5911 | break; | |
5912 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
5913 | dwarf_debug_sections, symbols, | |
5914 | &mdata->dwarf2_find_line_info, | |
93ee1e36 | 5915 | FALSE)) |
07d6d2b8 AM |
5916 | return FALSE; |
5917 | } | |
2ca7691a TG |
5918 | break; |
5919 | default: | |
5920 | return FALSE; | |
5921 | } | |
fb167eb2 AM |
5922 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
5923 | filename_ptr, functionname_ptr, | |
5924 | line_ptr, discriminator_ptr, | |
5925 | dwarf_debug_sections, 0, | |
5926 | &mdata->dwarf2_find_line_info); | |
d9071b0c TG |
5927 | } |
5928 | ||
5929 | bfd_boolean | |
5930 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
5931 | { | |
5932 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5933 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
5934 | { |
5935 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
5936 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a | 5937 | if (mdata->dsym_bfd != NULL) |
07d6d2b8 AM |
5938 | { |
5939 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
cf466c2a NC |
5940 | #if 0 |
5941 | /* FIXME: PR 19435: This calculation to find the memory allocated by | |
5942 | bfd_mach_o_follow_dsym for the filename does not always end up | |
5943 | selecting the correct pointer. Unfortunately this problem is | |
5944 | very hard to reproduce on a non Mach-O native system, so until it | |
5945 | can be traced and fixed on such a system, this code will remain | |
5946 | commented out. This does mean that there will be a memory leak, | |
5947 | but it is small, and happens when we are closing down, so it | |
c244074c | 5948 | should not matter too much. */ |
07d6d2b8 AM |
5949 | char *dsym_filename = (char *)(fat_bfd |
5950 | ? fat_bfd->filename | |
5951 | : mdata->dsym_bfd->filename); | |
cf466c2a | 5952 | #endif |
07d6d2b8 AM |
5953 | bfd_close (mdata->dsym_bfd); |
5954 | mdata->dsym_bfd = NULL; | |
5955 | if (fat_bfd) | |
5956 | bfd_close (fat_bfd); | |
cf466c2a | 5957 | #if 0 |
07d6d2b8 | 5958 | free (dsym_filename); |
cf466c2a | 5959 | #endif |
07d6d2b8 | 5960 | } |
4434114c | 5961 | } |
dff55db0 | 5962 | |
d9071b0c TG |
5963 | return _bfd_generic_close_and_cleanup (abfd); |
5964 | } | |
5965 | ||
c6643fcc NC |
5966 | bfd_boolean |
5967 | bfd_mach_o_free_cached_info (bfd *abfd) | |
dff55db0 TG |
5968 | { |
5969 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5970 | asection *asect; | |
5971 | free (mdata->dyn_reloc_cache); | |
5972 | mdata->dyn_reloc_cache = NULL; | |
5973 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
5974 | { | |
5975 | free (asect->relocation); | |
5976 | asect->relocation = NULL; | |
5977 | } | |
5978 | ||
5979 | return TRUE; | |
5980 | } | |
5981 | ||
68ffbac6 | 5982 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
92bc0e80 TG |
5983 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
5984 | ||
bcb51645 | 5985 | #define bfd_mach_o_canonicalize_one_reloc NULL |
92bc0e80 | 5986 | #define bfd_mach_o_swap_reloc_out NULL |
b32e07d7 | 5987 | #define bfd_mach_o_print_thread NULL |
a4551119 | 5988 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 5989 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 5990 | |
07d6d2b8 AM |
5991 | #define TARGET_NAME mach_o_be_vec |
5992 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 5993 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 5994 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
5995 | #define TARGET_BIG_ENDIAN 1 |
5996 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 5997 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
5998 | #include "mach-o-target.c" |
5999 | ||
6000 | #undef TARGET_NAME | |
6001 | #undef TARGET_STRING | |
42fa0891 | 6002 | #undef TARGET_ARCHITECTURE |
4384b284 | 6003 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6004 | #undef TARGET_BIG_ENDIAN |
6005 | #undef TARGET_ARCHIVE | |
b93a1992 | 6006 | #undef TARGET_PRIORITY |
3af9a47b | 6007 | |
07d6d2b8 AM |
6008 | #define TARGET_NAME mach_o_le_vec |
6009 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 6010 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6011 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6012 | #define TARGET_BIG_ENDIAN 0 |
6013 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 6014 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
6015 | |
6016 | #include "mach-o-target.c" | |
6017 | ||
6018 | #undef TARGET_NAME | |
6019 | #undef TARGET_STRING | |
42fa0891 | 6020 | #undef TARGET_ARCHITECTURE |
4384b284 | 6021 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6022 | #undef TARGET_BIG_ENDIAN |
6023 | #undef TARGET_ARCHIVE | |
b93a1992 | 6024 | #undef TARGET_PRIORITY |
3af9a47b | 6025 | |
8f95b6e4 | 6026 | /* Not yet handled: creating an archive. */ |
07d6d2b8 | 6027 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
8f95b6e4 | 6028 | |
d00dd7dc | 6029 | #define bfd_mach_o_close_and_cleanup _bfd_bool_bfd_true |
47daa70f | 6030 | |
8f95b6e4 | 6031 | /* Not used. */ |
07d6d2b8 | 6032 | #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt |
47daa70f TG |
6033 | #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file |
6034 | #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p | |
8f95b6e4 | 6035 | |
07d6d2b8 AM |
6036 | #define TARGET_NAME mach_o_fat_vec |
6037 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 6038 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6039 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6040 | #define TARGET_BIG_ENDIAN 1 |
6041 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 6042 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
6043 | |
6044 | #include "mach-o-target.c" | |
6045 | ||
6046 | #undef TARGET_NAME | |
6047 | #undef TARGET_STRING | |
42fa0891 | 6048 | #undef TARGET_ARCHITECTURE |
4384b284 | 6049 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6050 | #undef TARGET_BIG_ENDIAN |
6051 | #undef TARGET_ARCHIVE | |
b93a1992 | 6052 | #undef TARGET_PRIORITY |