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3af9a47b | 1 | /* Mach-O support for BFD. |
82704155 | 2 | Copyright (C) 1999-2019 Free Software Foundation, Inc. |
3af9a47b NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b NC |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
a95a4550 | 17 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
3af9a47b | 20 | |
3db64b00 | 21 | #include "sysdep.h" |
7a6e0d89 | 22 | #include <limits.h> |
3af9a47b | 23 | #include "bfd.h" |
3af9a47b NC |
24 | #include "libbfd.h" |
25 | #include "libiberty.h" | |
2d5d5a8f | 26 | #include "mach-o.h" |
15e1c58a | 27 | #include "aout/stab_gnu.h" |
46d1c23b TG |
28 | #include "mach-o/reloc.h" |
29 | #include "mach-o/external.h" | |
3af9a47b | 30 | #include <ctype.h> |
7f307238 IS |
31 | #include <stdlib.h> |
32 | #include <string.h> | |
3af9a47b | 33 | |
154a1ee5 TG |
34 | #define bfd_mach_o_object_p bfd_mach_o_gen_object_p |
35 | #define bfd_mach_o_core_p bfd_mach_o_gen_core_p | |
42fa0891 | 36 | #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject |
116c20d2 | 37 | |
92bc0e80 | 38 | #define FILE_ALIGN(off, algn) \ |
b6518b38 | 39 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn))) |
92bc0e80 | 40 | |
c9ffd2ea TG |
41 | static bfd_boolean |
42 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd); | |
43 | ||
c2f09c75 | 44 | unsigned int |
1e8a024a TG |
45 | bfd_mach_o_version (bfd *abfd) |
46 | { | |
47 | bfd_mach_o_data_struct *mdata = NULL; | |
48 | ||
49 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
046b007d | 50 | mdata = bfd_mach_o_get_data (abfd); |
1e8a024a TG |
51 | |
52 | return mdata->header.version; | |
53 | } | |
54 | ||
b34976b6 | 55 | bfd_boolean |
116c20d2 | 56 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
57 | { |
58 | if (abfd == NULL || abfd->xvec == NULL) | |
154a1ee5 | 59 | return FALSE; |
3af9a47b | 60 | |
154a1ee5 TG |
61 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
62 | return FALSE; | |
3af9a47b | 63 | |
046b007d | 64 | if (bfd_mach_o_get_data (abfd) == NULL) |
154a1ee5 TG |
65 | return FALSE; |
66 | return TRUE; | |
67 | } | |
68 | ||
c2f09c75 TG |
69 | static INLINE bfd_boolean |
70 | mach_o_wide_p (bfd_mach_o_header *header) | |
71 | { | |
72 | switch (header->version) | |
73 | { | |
74 | case 1: | |
75 | return FALSE; | |
76 | case 2: | |
77 | return TRUE; | |
78 | default: | |
79 | BFD_FAIL (); | |
80 | return FALSE; | |
81 | } | |
82 | } | |
83 | ||
84 | static INLINE bfd_boolean | |
85 | bfd_mach_o_wide_p (bfd *abfd) | |
86 | { | |
046b007d | 87 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
c2f09c75 | 88 | } |
68ffbac6 | 89 | |
154a1ee5 TG |
90 | /* Tables to translate well known Mach-O segment/section names to bfd |
91 | names. Use of canonical names (such as .text or .debug_frame) is required | |
92 | by gdb. */ | |
93 | ||
a4551119 TG |
94 | /* __TEXT Segment. */ |
95 | static const mach_o_section_name_xlat text_section_names_xlat[] = | |
154a1ee5 | 96 | { |
68ffbac6 | 97 | { ".text", "__text", |
a4551119 TG |
98 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, |
99 | BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0}, | |
100 | { ".const", "__const", | |
101 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
102 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
103 | { ".static_const", "__static_const", | |
104 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
105 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
106 | { ".cstring", "__cstring", | |
107 | SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS, | |
108 | BFD_MACH_O_S_CSTRING_LITERALS, | |
109 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
110 | { ".literal4", "__literal4", | |
111 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS, | |
112 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
113 | { ".literal8", "__literal8", | |
114 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS, | |
115 | BFD_MACH_O_S_ATTR_NONE, 3}, | |
116 | { ".literal16", "__literal16", | |
117 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS, | |
118 | BFD_MACH_O_S_ATTR_NONE, 4}, | |
119 | { ".constructor", "__constructor", | |
120 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
121 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
122 | { ".destructor", "__destructor", | |
123 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
124 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
125 | { ".eh_frame", "__eh_frame", | |
632039e0 | 126 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED, |
a4551119 TG |
127 | BFD_MACH_O_S_ATTR_LIVE_SUPPORT |
128 | | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS | |
632039e0 | 129 | | BFD_MACH_O_S_ATTR_NO_TOC, 2}, |
a4551119 | 130 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
131 | }; |
132 | ||
a4551119 TG |
133 | /* __DATA Segment. */ |
134 | static const mach_o_section_name_xlat data_section_names_xlat[] = | |
154a1ee5 | 135 | { |
a4551119 TG |
136 | { ".data", "__data", |
137 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
138 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
139 | { ".bss", "__bss", | |
140 | SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL, | |
141 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
142 | { ".const_data", "__const", | |
143 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
144 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
145 | { ".static_data", "__static_data", | |
146 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
147 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
148 | { ".mod_init_func", "__mod_init_func", | |
149 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS, | |
150 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
151 | { ".mod_term_func", "__mod_term_func", | |
152 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS, | |
153 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
154 | { ".dyld", "__dyld", | |
155 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
156 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
157 | { ".cfstring", "__cfstring", | |
158 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
159 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
160 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
161 | }; |
162 | ||
a4551119 TG |
163 | /* __DWARF Segment. */ |
164 | static const mach_o_section_name_xlat dwarf_section_names_xlat[] = | |
154a1ee5 | 165 | { |
a4551119 TG |
166 | { ".debug_frame", "__debug_frame", |
167 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
168 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
169 | { ".debug_info", "__debug_info", | |
170 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
171 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
172 | { ".debug_abbrev", "__debug_abbrev", | |
173 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
174 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
175 | { ".debug_aranges", "__debug_aranges", | |
176 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
177 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
178 | { ".debug_macinfo", "__debug_macinfo", | |
179 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
180 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
181 | { ".debug_line", "__debug_line", | |
182 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
183 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
184 | { ".debug_loc", "__debug_loc", | |
185 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
186 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
187 | { ".debug_pubnames", "__debug_pubnames", | |
188 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
189 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
190 | { ".debug_pubtypes", "__debug_pubtypes", | |
191 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
192 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
193 | { ".debug_str", "__debug_str", | |
194 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
195 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
196 | { ".debug_ranges", "__debug_ranges", | |
197 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
198 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
199 | { ".debug_macro", "__debug_macro", | |
200 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
201 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
671a6cbe NC |
202 | { ".debug_gdb_scripts", "__debug_gdb_scri", |
203 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
204 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
a4551119 | 205 | { NULL, NULL, 0, 0, 0, 0} |
154a1ee5 TG |
206 | }; |
207 | ||
a4551119 TG |
208 | /* __OBJC Segment. */ |
209 | static const mach_o_section_name_xlat objc_section_names_xlat[] = | |
210 | { | |
211 | { ".objc_class", "__class", | |
212 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
213 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
214 | { ".objc_meta_class", "__meta_class", | |
215 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
216 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
217 | { ".objc_cat_cls_meth", "__cat_cls_meth", | |
218 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
219 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
220 | { ".objc_cat_inst_meth", "__cat_inst_meth", | |
221 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
222 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
223 | { ".objc_protocol", "__protocol", | |
224 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
225 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
226 | { ".objc_string_object", "__string_object", | |
227 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
228 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
229 | { ".objc_cls_meth", "__cls_meth", | |
230 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
231 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
232 | { ".objc_inst_meth", "__inst_meth", | |
233 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
234 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
235 | { ".objc_cls_refs", "__cls_refs", | |
236 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
237 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
238 | { ".objc_message_refs", "__message_refs", | |
239 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
240 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
241 | { ".objc_symbols", "__symbols", | |
242 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
243 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
244 | { ".objc_category", "__category", | |
245 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
246 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
247 | { ".objc_class_vars", "__class_vars", | |
248 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
249 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
250 | { ".objc_instance_vars", "__instance_vars", | |
251 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
252 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
253 | { ".objc_module_info", "__module_info", | |
254 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
255 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
256 | { ".objc_selector_strs", "__selector_strs", | |
257 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS, | |
258 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
259 | { ".objc_image_info", "__image_info", | |
260 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
261 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
262 | { ".objc_selector_fixup", "__sel_fixup", | |
263 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
264 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
265 | /* Objc V1 */ | |
266 | { ".objc1_class_ext", "__class_ext", | |
267 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
268 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
269 | { ".objc1_property_list", "__property", | |
270 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
271 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
272 | { ".objc1_protocol_ext", "__protocol_ext", | |
273 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
274 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
275 | { NULL, NULL, 0, 0, 0, 0} | |
276 | }; | |
5a5cbf72 | 277 | |
a4551119 | 278 | static const mach_o_segment_name_xlat segsec_names_xlat[] = |
154a1ee5 | 279 | { |
154a1ee5 TG |
280 | { "__TEXT", text_section_names_xlat }, |
281 | { "__DATA", data_section_names_xlat }, | |
5a5cbf72 | 282 | { "__DWARF", dwarf_section_names_xlat }, |
a4551119 | 283 | { "__OBJC", objc_section_names_xlat }, |
154a1ee5 TG |
284 | { NULL, NULL } |
285 | }; | |
286 | ||
2ca7691a TG |
287 | static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF"; |
288 | ||
a4551119 TG |
289 | /* For both cases bfd-name => mach-o name and vice versa, the specific target |
290 | is checked before the generic. This allows a target (e.g. ppc for cstring) | |
291 | to override the generic definition with a more specific one. */ | |
154a1ee5 | 292 | |
a4551119 TG |
293 | /* Fetch the translation from a Mach-O section designation (segment, section) |
294 | as a bfd short name, if one exists. Otherwise return NULL. | |
68ffbac6 | 295 | |
a4551119 TG |
296 | Allow the segment and section names to be unterminated 16 byte arrays. */ |
297 | ||
298 | const mach_o_section_name_xlat * | |
299 | bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname, | |
300 | const char *sectname) | |
154a1ee5 TG |
301 | { |
302 | const struct mach_o_segment_name_xlat *seg; | |
a4551119 TG |
303 | const mach_o_section_name_xlat *sec; |
304 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
154a1ee5 | 305 | |
a4551119 TG |
306 | /* First try any target-specific translations defined... */ |
307 | if (bed->segsec_names_xlat) | |
308 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
309 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
310 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
311 | if (strncmp (sec->mach_o_name, sectname, | |
312 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
313 | return sec; | |
8462aec7 | 314 | |
a4551119 | 315 | /* ... and then the Mach-O generic ones. */ |
154a1ee5 | 316 | for (seg = segsec_names_xlat; seg->segname; seg++) |
a4551119 TG |
317 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) |
318 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
07d6d2b8 | 319 | if (strncmp (sec->mach_o_name, sectname, |
a4551119 | 320 | BFD_MACH_O_SECTNAME_SIZE) == 0) |
07d6d2b8 | 321 | return sec; |
154a1ee5 | 322 | |
68ffbac6 | 323 | return NULL; |
53d58d96 TG |
324 | } |
325 | ||
a4551119 | 326 | /* If the bfd_name for this section is a 'canonical' form for which we |
68ffbac6 | 327 | know the Mach-O data, return the segment name and the data for the |
a4551119 | 328 | Mach-O equivalent. Otherwise return NULL. */ |
7ba695a9 | 329 | |
a4551119 TG |
330 | const mach_o_section_name_xlat * |
331 | bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name, | |
332 | const char **segname) | |
53d58d96 | 333 | { |
a4551119 TG |
334 | const struct mach_o_segment_name_xlat *seg; |
335 | const mach_o_section_name_xlat *sec; | |
336 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
337 | *segname = NULL; | |
338 | ||
339 | if (bfd_name[0] != '.') | |
340 | return NULL; | |
341 | ||
342 | /* First try any target-specific translations defined... */ | |
343 | if (bed->segsec_names_xlat) | |
344 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
345 | for (sec = seg->sections; sec->bfd_name; sec++) | |
346 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
347 | { | |
348 | *segname = seg->segname; | |
349 | return sec; | |
350 | } | |
351 | ||
352 | /* ... and then the Mach-O generic ones. */ | |
353 | for (seg = segsec_names_xlat; seg->segname; seg++) | |
354 | for (sec = seg->sections; sec->bfd_name; sec++) | |
355 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
356 | { | |
357 | *segname = seg->segname; | |
358 | return sec; | |
359 | } | |
360 | ||
68ffbac6 | 361 | return NULL; |
a4551119 TG |
362 | } |
363 | ||
364 | /* Convert Mach-O section name to BFD. | |
365 | ||
68ffbac6 | 366 | Try to use standard/canonical names, for which we have tables including |
a4551119 TG |
367 | default flag settings - which are returned. Otherwise forge a new name |
368 | in the form "<segmentname>.<sectionname>" this will be prefixed with | |
369 | LC_SEGMENT. if the segment name does not begin with an underscore. | |
370 | ||
371 | SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL- | |
372 | terminated if the name length is exactly 16 bytes - but must be if the name | |
373 | length is less than 16 characters). */ | |
374 | ||
375 | void | |
376 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname, | |
377 | const char *secname, const char **name, | |
378 | flagword *flags) | |
379 | { | |
380 | const mach_o_section_name_xlat *xlat; | |
53d58d96 TG |
381 | char *res; |
382 | unsigned int len; | |
383 | const char *pfx = ""; | |
384 | ||
a4551119 TG |
385 | *name = NULL; |
386 | *flags = SEC_NO_FLAGS; | |
53d58d96 | 387 | |
68ffbac6 | 388 | /* First search for a canonical name... |
a4551119 TG |
389 | xlat will be non-null if there is an entry for segname, secname. */ |
390 | xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname); | |
391 | if (xlat) | |
392 | { | |
393 | len = strlen (xlat->bfd_name); | |
64d29018 | 394 | res = bfd_alloc (abfd, len + 1); |
a4551119 TG |
395 | if (res == NULL) |
396 | return; | |
397 | memcpy (res, xlat->bfd_name, len+1); | |
398 | *name = res; | |
399 | *flags = xlat->bfd_flags; | |
400 | return; | |
401 | } | |
402 | ||
403 | /* ... else we make up a bfd name from the segment concatenated with the | |
404 | section. */ | |
154a1ee5 | 405 | |
7ba695a9 | 406 | len = 16 + 1 + 16 + 1; |
154a1ee5 | 407 | |
c2f09c75 TG |
408 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
409 | with an underscore. */ | |
f1bde64c | 410 | if (segname[0] != '_') |
c2f09c75 TG |
411 | { |
412 | static const char seg_pfx[] = "LC_SEGMENT."; | |
413 | ||
414 | pfx = seg_pfx; | |
415 | len += sizeof (seg_pfx) - 1; | |
416 | } | |
417 | ||
154a1ee5 TG |
418 | res = bfd_alloc (abfd, len); |
419 | if (res == NULL) | |
8462aec7 | 420 | return; |
a4551119 | 421 | snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname); |
8462aec7 | 422 | *name = res; |
154a1ee5 TG |
423 | } |
424 | ||
a4551119 | 425 | /* Convert a bfd section name to a Mach-O segment + section name. |
154a1ee5 | 426 | |
a4551119 TG |
427 | If the name is a canonical one for which we have a Darwin match |
428 | return the translation table - which contains defaults for flags, | |
429 | type, attribute and default alignment data. | |
430 | ||
68ffbac6 | 431 | Otherwise, expand the bfd_name (assumed to be in the form |
a4551119 TG |
432 | "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */ |
433 | ||
434 | static const mach_o_section_name_xlat * | |
154a1ee5 | 435 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
07d6d2b8 AM |
436 | asection *sect, |
437 | bfd_mach_o_section *section) | |
154a1ee5 | 438 | { |
a4551119 | 439 | const mach_o_section_name_xlat *xlat; |
154a1ee5 | 440 | const char *name = bfd_get_section_name (abfd, sect); |
a4551119 | 441 | const char *segname; |
154a1ee5 TG |
442 | const char *dot; |
443 | unsigned int len; | |
444 | unsigned int seglen; | |
445 | unsigned int seclen; | |
446 | ||
a4551119 TG |
447 | memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1); |
448 | memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1); | |
449 | ||
450 | /* See if is a canonical name ... */ | |
451 | xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname); | |
452 | if (xlat) | |
453 | { | |
454 | strcpy (section->segname, segname); | |
455 | strcpy (section->sectname, xlat->mach_o_name); | |
456 | return xlat; | |
457 | } | |
154a1ee5 | 458 | |
a4551119 TG |
459 | /* .. else we convert our constructed one back to Mach-O. |
460 | Strip LC_SEGMENT. prefix, if present. */ | |
154a1ee5 TG |
461 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
462 | name += 11; | |
463 | ||
464 | /* Find a dot. */ | |
465 | dot = strchr (name, '.'); | |
466 | len = strlen (name); | |
467 | ||
468 | /* Try to split name into segment and section names. */ | |
469 | if (dot && dot != name) | |
470 | { | |
471 | seglen = dot - name; | |
472 | seclen = len - (dot + 1 - name); | |
473 | ||
ca148c5a TG |
474 | if (seglen <= BFD_MACH_O_SEGNAME_SIZE |
475 | && seclen <= BFD_MACH_O_SECTNAME_SIZE) | |
07d6d2b8 AM |
476 | { |
477 | memcpy (section->segname, name, seglen); | |
478 | section->segname[seglen] = 0; | |
479 | memcpy (section->sectname, dot + 1, seclen); | |
480 | section->sectname[seclen] = 0; | |
481 | return NULL; | |
482 | } | |
154a1ee5 TG |
483 | } |
484 | ||
a4551119 TG |
485 | /* The segment and section names are both missing - don't make them |
486 | into dots. */ | |
487 | if (dot && dot == name) | |
488 | return NULL; | |
489 | ||
490 | /* Just duplicate the name into both segment and section. */ | |
154a1ee5 TG |
491 | if (len > 16) |
492 | len = 16; | |
493 | memcpy (section->segname, name, len); | |
494 | section->segname[len] = 0; | |
495 | memcpy (section->sectname, name, len); | |
496 | section->sectname[len] = 0; | |
a4551119 | 497 | return NULL; |
3af9a47b NC |
498 | } |
499 | ||
b2b62060 TG |
500 | /* Return the size of an entry for section SEC. |
501 | Must be called only for symbol pointer section and symbol stubs | |
502 | sections. */ | |
503 | ||
c5012cd8 | 504 | unsigned int |
b2b62060 TG |
505 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
506 | { | |
507 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
508 | { | |
509 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
510 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
511 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
512 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
513 | return sec->reserved2; | |
514 | default: | |
515 | BFD_FAIL (); | |
516 | return 0; | |
517 | } | |
518 | } | |
519 | ||
520 | /* Return the number of indirect symbols for a section. | |
521 | Must be called only for symbol pointer section and symbol stubs | |
522 | sections. */ | |
523 | ||
c5012cd8 | 524 | unsigned int |
b2b62060 TG |
525 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
526 | { | |
527 | unsigned int elsz; | |
528 | ||
529 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); | |
530 | if (elsz == 0) | |
531 | return 0; | |
532 | else | |
533 | return sec->size / elsz; | |
534 | } | |
535 | ||
c9ffd2ea TG |
536 | /* Append command CMD to ABFD. Note that header.ncmds is not updated. */ |
537 | ||
538 | static void | |
539 | bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd) | |
540 | { | |
541 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
542 | ||
543 | if (mdata->last_command != NULL) | |
544 | mdata->last_command->next = cmd; | |
545 | else | |
546 | mdata->first_command = cmd; | |
547 | mdata->last_command = cmd; | |
548 | cmd->next = NULL; | |
549 | } | |
b2b62060 | 550 | |
3af9a47b NC |
551 | /* Copy any private info we understand from the input symbol |
552 | to the output symbol. */ | |
553 | ||
154a1ee5 | 554 | bfd_boolean |
116c20d2 | 555 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
b22161d6 | 556 | asymbol *isymbol, |
116c20d2 | 557 | bfd *obfd ATTRIBUTE_UNUSED, |
b22161d6 IS |
558 | asymbol *osymbol) |
559 | { | |
560 | bfd_mach_o_asymbol *os, *is; | |
c9ffd2ea | 561 | |
b22161d6 IS |
562 | os = (bfd_mach_o_asymbol *)osymbol; |
563 | is = (bfd_mach_o_asymbol *)isymbol; | |
564 | os->n_type = is->n_type; | |
565 | os->n_sect = is->n_sect; | |
566 | os->n_desc = is->n_desc; | |
567 | os->symbol.udata.i = is->symbol.udata.i; | |
c9ffd2ea | 568 | |
b34976b6 | 569 | return TRUE; |
3af9a47b NC |
570 | } |
571 | ||
572 | /* Copy any private info we understand from the input section | |
573 | to the output section. */ | |
574 | ||
154a1ee5 | 575 | bfd_boolean |
c9ffd2ea TG |
576 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection, |
577 | bfd *obfd, asection *osection) | |
a4551119 | 578 | { |
c9ffd2ea TG |
579 | bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection); |
580 | bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection); | |
68ffbac6 | 581 | |
c9ffd2ea TG |
582 | if (ibfd->xvec->flavour != bfd_target_mach_o_flavour |
583 | || obfd->xvec->flavour != bfd_target_mach_o_flavour) | |
584 | return TRUE; | |
585 | ||
586 | BFD_ASSERT (is != NULL && os != NULL); | |
587 | ||
588 | os->flags = is->flags; | |
589 | os->reserved1 = is->reserved1; | |
590 | os->reserved2 = is->reserved2; | |
591 | os->reserved3 = is->reserved3; | |
a4551119 | 592 | |
b34976b6 | 593 | return TRUE; |
3af9a47b NC |
594 | } |
595 | ||
c6643fcc NC |
596 | static const char * |
597 | cputype (unsigned long value) | |
598 | { | |
599 | switch (value) | |
600 | { | |
601 | case BFD_MACH_O_CPU_TYPE_VAX: return "VAX"; | |
602 | case BFD_MACH_O_CPU_TYPE_MC680x0: return "MC68k"; | |
603 | case BFD_MACH_O_CPU_TYPE_I386: return "I386"; | |
604 | case BFD_MACH_O_CPU_TYPE_MIPS: return "MIPS"; | |
605 | case BFD_MACH_O_CPU_TYPE_MC98000: return "MC98k"; | |
606 | case BFD_MACH_O_CPU_TYPE_HPPA: return "HPPA"; | |
607 | case BFD_MACH_O_CPU_TYPE_ARM: return "ARM"; | |
608 | case BFD_MACH_O_CPU_TYPE_MC88000: return "MC88K"; | |
609 | case BFD_MACH_O_CPU_TYPE_SPARC: return "SPARC"; | |
610 | case BFD_MACH_O_CPU_TYPE_I860: return "I860"; | |
611 | case BFD_MACH_O_CPU_TYPE_ALPHA: return "ALPHA"; | |
612 | case BFD_MACH_O_CPU_TYPE_POWERPC: return "PPC"; | |
613 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: return "PPC64"; | |
614 | case BFD_MACH_O_CPU_TYPE_X86_64: return "X86_64"; | |
615 | case BFD_MACH_O_CPU_TYPE_ARM64: return "ARM64"; | |
616 | default: return _("<unknown>"); | |
617 | } | |
618 | } | |
619 | ||
620 | static const char * | |
621 | cpusubtype (unsigned long cputype, unsigned long cpusubtype) | |
622 | { | |
623 | static char buffer[128]; | |
624 | ||
625 | buffer[0] = 0; | |
626 | switch (cpusubtype & BFD_MACH_O_CPU_SUBTYPE_MASK) | |
627 | { | |
628 | case 0: | |
629 | break; | |
630 | case BFD_MACH_O_CPU_SUBTYPE_LIB64: | |
631 | sprintf (buffer, " (LIB64)"); break; | |
632 | default: | |
633 | sprintf (buffer, _("<unknown mask flags>")); break; | |
634 | } | |
635 | ||
636 | cpusubtype &= ~ BFD_MACH_O_CPU_SUBTYPE_MASK; | |
637 | ||
638 | switch (cputype) | |
639 | { | |
640 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
641 | case BFD_MACH_O_CPU_TYPE_I386: | |
642 | switch (cpusubtype) | |
643 | { | |
644 | case BFD_MACH_O_CPU_SUBTYPE_X86_ALL: | |
645 | return strcat (buffer, " (X86_ALL)"); | |
646 | default: | |
647 | break; | |
648 | } | |
649 | break; | |
650 | ||
651 | case BFD_MACH_O_CPU_TYPE_ARM: | |
652 | switch (cpusubtype) | |
653 | { | |
654 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
655 | return strcat (buffer, " (ARM_ALL)"); | |
656 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
657 | return strcat (buffer, " (ARM_V4T)"); | |
658 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
659 | return strcat (buffer, " (ARM_V6)"); | |
660 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
661 | return strcat (buffer, " (ARM_V5TEJ)"); | |
662 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
663 | return strcat (buffer, " (ARM_XSCALE)"); | |
664 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
665 | return strcat (buffer, " (ARM_V7)"); | |
666 | default: | |
667 | break; | |
668 | } | |
669 | break; | |
670 | ||
671 | case BFD_MACH_O_CPU_TYPE_ARM64: | |
672 | switch (cpusubtype) | |
673 | { | |
674 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL: | |
675 | return strcat (buffer, " (ARM64_ALL)"); | |
676 | case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8: | |
677 | return strcat (buffer, " (ARM64_V8)"); | |
678 | default: | |
679 | break; | |
680 | } | |
681 | break; | |
682 | ||
683 | default: | |
684 | break; | |
685 | } | |
686 | ||
687 | if (cpusubtype != 0) | |
688 | return strcat (buffer, _(" (<unknown>)")); | |
689 | ||
690 | return buffer; | |
691 | } | |
692 | ||
693 | bfd_boolean | |
694 | bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr) | |
695 | { | |
696 | FILE * file = (FILE *) ptr; | |
697 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
698 | ||
699 | fprintf (file, _(" MACH-O header:\n")); | |
700 | fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic); | |
701 | fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype, | |
702 | cputype (mdata->header.cputype)); | |
703 | fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype, | |
704 | cpusubtype (mdata->header.cputype, mdata->header.cpusubtype)); | |
705 | fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype); | |
706 | fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds); | |
707 | fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds); | |
708 | fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags); | |
709 | fprintf (file, _(" version: %x\n"), mdata->header.version); | |
710 | ||
711 | return TRUE; | |
712 | } | |
713 | ||
3af9a47b NC |
714 | /* Copy any private info we understand from the input bfd |
715 | to the output bfd. */ | |
716 | ||
154a1ee5 | 717 | bfd_boolean |
967b2c53 | 718 | bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 719 | { |
c9ffd2ea TG |
720 | bfd_mach_o_data_struct *imdata; |
721 | bfd_mach_o_data_struct *omdata; | |
722 | bfd_mach_o_load_command *icmd; | |
723 | ||
154a1ee5 TG |
724 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
725 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
726 | return TRUE; | |
727 | ||
3af9a47b NC |
728 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
729 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
730 | ||
c9ffd2ea TG |
731 | imdata = bfd_mach_o_get_data (ibfd); |
732 | omdata = bfd_mach_o_get_data (obfd); | |
733 | ||
734 | /* Copy header flags. */ | |
735 | omdata->header.flags = imdata->header.flags; | |
736 | ||
c6643fcc NC |
737 | /* PR 23299. Copy the cputype. */ |
738 | if (imdata->header.cputype != omdata->header.cputype) | |
739 | { | |
740 | if (omdata->header.cputype == 0) | |
741 | omdata->header.cputype = imdata->header.cputype; | |
742 | else if (imdata->header.cputype != 0) | |
743 | /* Urg - what has happened ? */ | |
744 | _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"), | |
745 | (long) imdata->header.cputype, | |
746 | (long) omdata->header.cputype); | |
747 | } | |
748 | ||
749 | /* Copy the cpusubtype. */ | |
750 | omdata->header.cpusubtype = imdata->header.cpusubtype; | |
751 | ||
c9ffd2ea TG |
752 | /* Copy commands. */ |
753 | for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next) | |
754 | { | |
755 | bfd_mach_o_load_command *ocmd; | |
756 | ||
757 | switch (icmd->type) | |
758 | { | |
759 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
760 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
761 | case BFD_MACH_O_LC_DYLD_INFO: | |
762 | /* Command is copied. */ | |
763 | ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command)); | |
764 | if (ocmd == NULL) | |
765 | return FALSE; | |
766 | ||
767 | /* Copy common fields. */ | |
768 | ocmd->type = icmd->type; | |
769 | ocmd->type_required = icmd->type_required; | |
770 | ocmd->offset = 0; | |
771 | ocmd->len = icmd->len; | |
772 | break; | |
773 | ||
774 | default: | |
775 | /* Command is not copied. */ | |
776 | continue; | |
777 | break; | |
778 | } | |
779 | ||
780 | switch (icmd->type) | |
781 | { | |
782 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
783 | { | |
784 | bfd_mach_o_dylib_command *idy = &icmd->command.dylib; | |
785 | bfd_mach_o_dylib_command *ody = &ocmd->command.dylib; | |
786 | ||
787 | ody->name_offset = idy->name_offset; | |
788 | ody->timestamp = idy->timestamp; | |
789 | ody->current_version = idy->current_version; | |
790 | ody->compatibility_version = idy->compatibility_version; | |
791 | ody->name_str = idy->name_str; | |
792 | } | |
793 | break; | |
794 | ||
795 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
796 | { | |
797 | bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker; | |
798 | bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker; | |
799 | ||
800 | ody->name_offset = idy->name_offset; | |
801 | ody->name_str = idy->name_str; | |
802 | } | |
803 | break; | |
804 | ||
805 | case BFD_MACH_O_LC_DYLD_INFO: | |
806 | { | |
807 | bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info; | |
808 | bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info; | |
809 | ||
810 | if (bfd_mach_o_read_dyld_content (ibfd, idy)) | |
811 | { | |
812 | ody->rebase_size = idy->rebase_size; | |
813 | ody->rebase_content = idy->rebase_content; | |
814 | ||
815 | ody->bind_size = idy->bind_size; | |
816 | ody->bind_content = idy->bind_content; | |
817 | ||
818 | ody->weak_bind_size = idy->weak_bind_size; | |
819 | ody->weak_bind_content = idy->weak_bind_content; | |
820 | ||
821 | ody->lazy_bind_size = idy->lazy_bind_size; | |
822 | ody->lazy_bind_content = idy->lazy_bind_content; | |
823 | ||
824 | ody->export_size = idy->export_size; | |
825 | ody->export_content = idy->export_content; | |
826 | } | |
86eafac0 NC |
827 | /* PR 17512L: file: 730e492d. */ |
828 | else | |
829 | { | |
1b786873 L |
830 | ody->rebase_size = |
831 | ody->bind_size = | |
832 | ody->weak_bind_size = | |
833 | ody->lazy_bind_size = | |
86eafac0 | 834 | ody->export_size = 0; |
1b786873 L |
835 | ody->rebase_content = |
836 | ody->bind_content = | |
837 | ody->weak_bind_content = | |
838 | ody->lazy_bind_content = | |
86eafac0 NC |
839 | ody->export_content = NULL; |
840 | } | |
c9ffd2ea TG |
841 | } |
842 | break; | |
843 | ||
844 | default: | |
845 | /* That command should be handled. */ | |
846 | abort (); | |
847 | } | |
848 | ||
849 | /* Insert command. */ | |
850 | bfd_mach_o_append_command (obfd, ocmd); | |
851 | } | |
154a1ee5 | 852 | |
b34976b6 | 853 | return TRUE; |
3af9a47b NC |
854 | } |
855 | ||
0c9ef0f0 TG |
856 | /* This allows us to set up to 32 bits of flags (unless we invent some |
857 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
858 | without error checking - just overwrite. */ | |
68ffbac6 | 859 | |
0c9ef0f0 TG |
860 | bfd_boolean |
861 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) | |
862 | { | |
863 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
864 | ||
865 | if (!mdata) | |
866 | return FALSE; | |
867 | ||
868 | mdata->header.flags = flags; | |
869 | return TRUE; | |
870 | } | |
871 | ||
046b007d | 872 | /* Count the total number of symbols. */ |
154a1ee5 | 873 | |
3af9a47b | 874 | static long |
116c20d2 | 875 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 876 | { |
046b007d | 877 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 878 | |
046b007d TG |
879 | if (mdata->symtab == NULL) |
880 | return 0; | |
881 | return mdata->symtab->nsyms; | |
3af9a47b NC |
882 | } |
883 | ||
154a1ee5 | 884 | long |
116c20d2 | 885 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
886 | { |
887 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
888 | ||
3af9a47b NC |
889 | return ((nsyms + 1) * sizeof (asymbol *)); |
890 | } | |
891 | ||
154a1ee5 | 892 | long |
116c20d2 | 893 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 894 | { |
046b007d | 895 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 896 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
897 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
898 | unsigned long j; | |
3af9a47b NC |
899 | |
900 | if (nsyms < 0) | |
901 | return nsyms; | |
902 | ||
092d27ff TG |
903 | if (nsyms == 0) |
904 | { | |
905 | /* Do not try to read symbols if there are none. */ | |
906 | alocation[0] = NULL; | |
907 | return 0; | |
908 | } | |
909 | ||
afbb9e17 | 910 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 911 | { |
4eca0228 | 912 | _bfd_error_handler |
07d6d2b8 | 913 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); |
046b007d TG |
914 | return 0; |
915 | } | |
3af9a47b | 916 | |
046b007d | 917 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 918 | |
046b007d TG |
919 | for (j = 0; j < sym->nsyms; j++) |
920 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 921 | |
046b007d | 922 | alocation[j] = NULL; |
a95a4550 | 923 | |
3af9a47b NC |
924 | return nsyms; |
925 | } | |
926 | ||
aeefa1c9 TG |
927 | /* Create synthetic symbols for indirect symbols. */ |
928 | ||
b2b62060 TG |
929 | long |
930 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
07d6d2b8 AM |
931 | long symcount ATTRIBUTE_UNUSED, |
932 | asymbol **syms ATTRIBUTE_UNUSED, | |
933 | long dynsymcount ATTRIBUTE_UNUSED, | |
934 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
935 | asymbol **ret) | |
b2b62060 TG |
936 | { |
937 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
938 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
939 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
940 | asymbol *s; | |
896ca098 NC |
941 | char * s_start; |
942 | char * s_end; | |
b2b62060 TG |
943 | unsigned long count, i, j, n; |
944 | size_t size; | |
945 | char *names; | |
946 | char *nul_name; | |
896ca098 | 947 | const char stub [] = "$stub"; |
b2b62060 TG |
948 | |
949 | *ret = NULL; | |
950 | ||
aeefa1c9 | 951 | /* Stop now if no symbols or no indirect symbols. */ |
896ca098 NC |
952 | if (dysymtab == NULL || dysymtab->nindirectsyms == 0 |
953 | || symtab == NULL || symtab->symbols == NULL) | |
b2b62060 TG |
954 | return 0; |
955 | ||
aeefa1c9 TG |
956 | /* We need to allocate a bfd symbol for every indirect symbol and to |
957 | allocate the memory for its name. */ | |
b2b62060 TG |
958 | count = dysymtab->nindirectsyms; |
959 | size = count * sizeof (asymbol) + 1; | |
960 | ||
961 | for (j = 0; j < count; j++) | |
962 | { | |
896ca098 | 963 | const char * strng; |
b2b62060 | 964 | unsigned int isym = dysymtab->indirect_syms[j]; |
aeefa1c9 TG |
965 | |
966 | /* Some indirect symbols are anonymous. */ | |
896ca098 NC |
967 | if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name)) |
968 | /* PR 17512: file: f5b8eeba. */ | |
969 | size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub); | |
b2b62060 TG |
970 | } |
971 | ||
896ca098 NC |
972 | s_start = bfd_malloc (size); |
973 | s = *ret = (asymbol *) s_start; | |
b2b62060 TG |
974 | if (s == NULL) |
975 | return -1; | |
976 | names = (char *) (s + count); | |
977 | nul_name = names; | |
978 | *names++ = 0; | |
896ca098 | 979 | s_end = s_start + size; |
68ffbac6 | 980 | |
b2b62060 TG |
981 | n = 0; |
982 | for (i = 0; i < mdata->nsects; i++) | |
983 | { | |
984 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 985 | unsigned int first, last; |
b2b62060 TG |
986 | bfd_vma addr; |
987 | bfd_vma entry_size; | |
68ffbac6 | 988 | |
b2b62060 | 989 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
07d6d2b8 AM |
990 | { |
991 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
992 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
993 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
994 | /* Only these sections have indirect symbols. */ | |
995 | first = sec->reserved1; | |
996 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
997 | addr = sec->addr; | |
998 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
896ca098 NC |
999 | |
1000 | /* PR 17512: file: 08e15eec. */ | |
1001 | if (first >= count || last >= count || first > last) | |
1002 | goto fail; | |
1003 | ||
07d6d2b8 AM |
1004 | for (j = first; j < last; j++) |
1005 | { | |
1006 | unsigned int isym = dysymtab->indirect_syms[j]; | |
b2b62060 | 1007 | |
896ca098 NC |
1008 | /* PR 17512: file: 04d64d9b. */ |
1009 | if (((char *) s) + sizeof (* s) > s_end) | |
1010 | goto fail; | |
1011 | ||
07d6d2b8 AM |
1012 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
1013 | s->section = sec->bfdsection; | |
1014 | s->value = addr - sec->addr; | |
1015 | s->udata.p = NULL; | |
68ffbac6 | 1016 | |
07d6d2b8 AM |
1017 | if (isym < symtab->nsyms |
1018 | && symtab->symbols[isym].symbol.name) | |
1019 | { | |
1020 | const char *sym = symtab->symbols[isym].symbol.name; | |
1021 | size_t len; | |
b2b62060 | 1022 | |
07d6d2b8 AM |
1023 | s->name = names; |
1024 | len = strlen (sym); | |
896ca098 NC |
1025 | /* PR 17512: file: 47dfd4d2. */ |
1026 | if (names + len >= s_end) | |
1027 | goto fail; | |
07d6d2b8 AM |
1028 | memcpy (names, sym, len); |
1029 | names += len; | |
896ca098 NC |
1030 | /* PR 17512: file: 18f340a4. */ |
1031 | if (names + sizeof (stub) >= s_end) | |
1032 | goto fail; | |
07d6d2b8 AM |
1033 | memcpy (names, stub, sizeof (stub)); |
1034 | names += sizeof (stub); | |
1035 | } | |
1036 | else | |
1037 | s->name = nul_name; | |
1038 | ||
1039 | addr += entry_size; | |
1040 | s++; | |
1041 | n++; | |
1042 | } | |
1043 | break; | |
1044 | default: | |
1045 | break; | |
1046 | } | |
b2b62060 TG |
1047 | } |
1048 | ||
1049 | return n; | |
896ca098 NC |
1050 | |
1051 | fail: | |
1052 | free (s_start); | |
1053 | * ret = NULL; | |
1054 | return -1; | |
b2b62060 TG |
1055 | } |
1056 | ||
154a1ee5 | 1057 | void |
116c20d2 NC |
1058 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
1059 | asymbol *symbol, | |
1060 | symbol_info *ret) | |
3af9a47b NC |
1061 | { |
1062 | bfd_symbol_info (symbol, ret); | |
1063 | } | |
1064 | ||
154a1ee5 | 1065 | void |
116c20d2 | 1066 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 1067 | void * afile, |
116c20d2 NC |
1068 | asymbol *symbol, |
1069 | bfd_print_symbol_type how) | |
3af9a47b NC |
1070 | { |
1071 | FILE *file = (FILE *) afile; | |
15e1c58a | 1072 | const char *name; |
92bc0e80 | 1073 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
1074 | |
1075 | switch (how) | |
1076 | { | |
1077 | case bfd_print_symbol_name: | |
1078 | fprintf (file, "%s", symbol->name); | |
1079 | break; | |
1080 | default: | |
91d6fa6a | 1081 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
1082 | if (asym->n_type & BFD_MACH_O_N_STAB) |
1083 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 1084 | else |
92bc0e80 | 1085 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
1086 | { |
1087 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
1088 | if (symbol->value == 0) |
1089 | name = "UND"; | |
1090 | else | |
1091 | name = "COM"; | |
15e1c58a TG |
1092 | break; |
1093 | case BFD_MACH_O_N_ABS: | |
1094 | name = "ABS"; | |
1095 | break; | |
1096 | case BFD_MACH_O_N_INDR: | |
1097 | name = "INDR"; | |
1098 | break; | |
1099 | case BFD_MACH_O_N_PBUD: | |
1100 | name = "PBUD"; | |
1101 | break; | |
1102 | case BFD_MACH_O_N_SECT: | |
1103 | name = "SECT"; | |
1104 | break; | |
1105 | default: | |
1106 | name = "???"; | |
1107 | break; | |
1108 | } | |
1109 | if (name == NULL) | |
1110 | name = ""; | |
92bc0e80 | 1111 | fprintf (file, " %02x %-6s %02x %04x", |
07d6d2b8 | 1112 | asym->n_type, name, asym->n_sect, asym->n_desc); |
92bc0e80 TG |
1113 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 |
1114 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 1115 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 1116 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
1117 | } |
1118 | } | |
1119 | ||
1120 | static void | |
116c20d2 | 1121 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 1122 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
1123 | enum bfd_architecture *type, |
1124 | unsigned long *subtype) | |
3af9a47b NC |
1125 | { |
1126 | *subtype = bfd_arch_unknown; | |
1127 | ||
1128 | switch (mtype) | |
1129 | { | |
0b2de107 TG |
1130 | case BFD_MACH_O_CPU_TYPE_VAX: |
1131 | *type = bfd_arch_vax; | |
1132 | break; | |
1133 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1134 | *type = bfd_arch_m68k; | |
1135 | break; | |
1e8a024a TG |
1136 | case BFD_MACH_O_CPU_TYPE_I386: |
1137 | *type = bfd_arch_i386; | |
1138 | *subtype = bfd_mach_i386_i386; | |
1139 | break; | |
1140 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
1141 | *type = bfd_arch_i386; | |
1142 | *subtype = bfd_mach_x86_64; | |
1143 | break; | |
0b2de107 TG |
1144 | case BFD_MACH_O_CPU_TYPE_MIPS: |
1145 | *type = bfd_arch_mips; | |
1146 | break; | |
1147 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
1148 | *type = bfd_arch_m98k; | |
1149 | break; | |
1150 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
1151 | *type = bfd_arch_hppa; | |
1152 | break; | |
1153 | case BFD_MACH_O_CPU_TYPE_ARM: | |
1154 | *type = bfd_arch_arm; | |
1155 | switch (msubtype) | |
07d6d2b8 AM |
1156 | { |
1157 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
1158 | *subtype = bfd_mach_arm_4T; | |
1159 | break; | |
1160 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
1161 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
1162 | break; | |
1163 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
1164 | *subtype = bfd_mach_arm_5TE; | |
1165 | break; | |
1166 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
1167 | *subtype = bfd_mach_arm_XScale; | |
1168 | break; | |
1169 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
1170 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
1171 | break; | |
1172 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
1173 | default: | |
1174 | break; | |
1175 | } | |
0b2de107 | 1176 | break; |
1e8a024a TG |
1177 | case BFD_MACH_O_CPU_TYPE_SPARC: |
1178 | *type = bfd_arch_sparc; | |
1179 | *subtype = bfd_mach_sparc; | |
1180 | break; | |
0b2de107 TG |
1181 | case BFD_MACH_O_CPU_TYPE_ALPHA: |
1182 | *type = bfd_arch_alpha; | |
1183 | break; | |
1e8a024a TG |
1184 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
1185 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1186 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
1187 | break; |
1188 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
1189 | *type = bfd_arch_powerpc; | |
c2f09c75 | 1190 | *subtype = bfd_mach_ppc64; |
1e8a024a | 1191 | break; |
d8028530 TG |
1192 | case BFD_MACH_O_CPU_TYPE_ARM64: |
1193 | *type = bfd_arch_aarch64; | |
1194 | *subtype = bfd_mach_aarch64; | |
1195 | break; | |
3af9a47b | 1196 | default: |
1e8a024a TG |
1197 | *type = bfd_arch_unknown; |
1198 | break; | |
3af9a47b NC |
1199 | } |
1200 | } | |
a95a4550 | 1201 | |
c9ffd2ea TG |
1202 | /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the |
1203 | number of bytes written or -1 in case of error. */ | |
1204 | ||
1205 | static int | |
1206 | bfd_mach_o_pad4 (bfd *abfd, unsigned int len) | |
1207 | { | |
1208 | if (len % 4 != 0) | |
1209 | { | |
1210 | char pad[4] = {0,0,0,0}; | |
1211 | unsigned int padlen = 4 - (len % 4); | |
1212 | ||
1213 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1214 | return -1; | |
1215 | ||
1216 | return padlen; | |
1217 | } | |
1218 | else | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | /* Likewise, but for a command. */ | |
1223 | ||
1224 | static int | |
1225 | bfd_mach_o_pad_command (bfd *abfd, unsigned int len) | |
1226 | { | |
1227 | unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
1228 | ||
1229 | if (len % align != 0) | |
1230 | { | |
1231 | char pad[8] = {0}; | |
1232 | unsigned int padlen = align - (len % align); | |
1233 | ||
1234 | if (bfd_bwrite (pad, padlen, abfd) != padlen) | |
1235 | return -1; | |
1236 | ||
1237 | return padlen; | |
1238 | } | |
1239 | else | |
1240 | return 0; | |
1241 | } | |
1242 | ||
154a1ee5 | 1243 | static bfd_boolean |
116c20d2 NC |
1244 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
1245 | { | |
46d1c23b | 1246 | struct mach_o_header_external raw; |
1e8a024a TG |
1247 | unsigned int size; |
1248 | ||
c2f09c75 | 1249 | size = mach_o_wide_p (header) ? |
154a1ee5 | 1250 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 1251 | |
46d1c23b TG |
1252 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
1253 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
1254 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
1255 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
1256 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
1257 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
1258 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 1259 | |
c2f09c75 | 1260 | if (mach_o_wide_p (header)) |
46d1c23b | 1261 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 1262 | |
c2f09c75 | 1263 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1264 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 1265 | return FALSE; |
116c20d2 | 1266 | |
154a1ee5 | 1267 | return TRUE; |
116c20d2 NC |
1268 | } |
1269 | ||
452216ab | 1270 | static bfd_boolean |
ab273af8 | 1271 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
1272 | { |
1273 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1274 | unsigned int i; | |
46d1c23b | 1275 | struct mach_o_thread_command_external raw; |
92bc0e80 | 1276 | unsigned int offset; |
116c20d2 NC |
1277 | |
1278 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1279 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1280 | ||
c9ffd2ea | 1281 | offset = BFD_MACH_O_LC_SIZE; |
116c20d2 NC |
1282 | for (i = 0; i < cmd->nflavours; i++) |
1283 | { | |
1284 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b | 1285 | BFD_ASSERT (cmd->flavours[i].offset == |
07d6d2b8 | 1286 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); |
116c20d2 | 1287 | |
46d1c23b TG |
1288 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
1289 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 1290 | |
c2f09c75 | 1291 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 1292 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 1293 | return FALSE; |
116c20d2 | 1294 | |
46d1c23b | 1295 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
1296 | } |
1297 | ||
452216ab | 1298 | return TRUE; |
116c20d2 NC |
1299 | } |
1300 | ||
c9ffd2ea TG |
1301 | static bfd_boolean |
1302 | bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command) | |
1303 | { | |
1304 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
1305 | struct mach_o_str_command_external raw; | |
1306 | unsigned int namelen; | |
1307 | ||
1308 | bfd_h_put_32 (abfd, cmd->name_offset, raw.str); | |
1309 | ||
1310 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1311 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1312 | return FALSE; | |
1313 | ||
1314 | namelen = strlen (cmd->name_str) + 1; | |
1315 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1316 | return FALSE; | |
1317 | ||
1318 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1319 | return FALSE; | |
1320 | ||
1321 | return TRUE; | |
1322 | } | |
1323 | ||
1324 | static bfd_boolean | |
1325 | bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command) | |
1326 | { | |
1327 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
1328 | struct mach_o_dylib_command_external raw; | |
1329 | unsigned int namelen; | |
1330 | ||
1331 | bfd_h_put_32 (abfd, cmd->name_offset, raw.name); | |
1332 | bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp); | |
1333 | bfd_h_put_32 (abfd, cmd->current_version, raw.current_version); | |
1334 | bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version); | |
1335 | ||
1336 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1337 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1338 | return FALSE; | |
1339 | ||
1340 | namelen = strlen (cmd->name_str) + 1; | |
1341 | if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen) | |
1342 | return FALSE; | |
1343 | ||
1344 | if (bfd_mach_o_pad_command (abfd, namelen) < 0) | |
1345 | return FALSE; | |
1346 | ||
1347 | return TRUE; | |
1348 | } | |
1349 | ||
1350 | static bfd_boolean | |
1351 | bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command) | |
1352 | { | |
1353 | bfd_mach_o_main_command *cmd = &command->command.main; | |
1354 | struct mach_o_entry_point_command_external raw; | |
1355 | ||
1356 | bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff); | |
1357 | bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize); | |
1358 | ||
1359 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1360 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1361 | return FALSE; | |
1362 | ||
1363 | return TRUE; | |
1364 | } | |
1365 | ||
1366 | static bfd_boolean | |
1367 | bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) | |
1368 | { | |
1369 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
1370 | struct mach_o_dyld_info_command_external raw; | |
1371 | ||
1372 | bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off); | |
1373 | bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size); | |
1374 | bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off); | |
1375 | bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size); | |
1376 | bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off); | |
1377 | bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size); | |
1378 | bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off); | |
1379 | bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size); | |
1380 | bfd_h_put_32 (abfd, cmd->export_off, raw.export_off); | |
1381 | bfd_h_put_32 (abfd, cmd->export_size, raw.export_size); | |
1382 | ||
1383 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1384 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1385 | return FALSE; | |
1386 | ||
1387 | if (cmd->rebase_size != 0) | |
1388 | if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0 | |
1389 | || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) != | |
1390 | cmd->rebase_size)) | |
1391 | return FALSE; | |
1392 | ||
1393 | if (cmd->bind_size != 0) | |
1394 | if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0 | |
1395 | || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) != | |
1396 | cmd->bind_size)) | |
1397 | return FALSE; | |
1398 | ||
1399 | if (cmd->weak_bind_size != 0) | |
1400 | if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0 | |
1401 | || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) != | |
1402 | cmd->weak_bind_size)) | |
1403 | return FALSE; | |
1404 | ||
1405 | if (cmd->lazy_bind_size != 0) | |
1406 | if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0 | |
1407 | || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) != | |
1408 | cmd->lazy_bind_size)) | |
1409 | return FALSE; | |
1410 | ||
1411 | if (cmd->export_size != 0) | |
1412 | if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0 | |
1413 | || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) != | |
1414 | cmd->export_size)) | |
1415 | return FALSE; | |
1416 | ||
1417 | return TRUE; | |
1418 | } | |
1419 | ||
7a6e0d89 AM |
1420 | #if GCC_VERSION >= 4003 |
1421 | # pragma GCC diagnostic push | |
1422 | # pragma GCC diagnostic ignored "-Wtype-limits" | |
1423 | #endif | |
92bc0e80 TG |
1424 | long |
1425 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 1426 | asection *asect) |
92bc0e80 | 1427 | { |
7a6e0d89 AM |
1428 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
1429 | { | |
1430 | bfd_set_error (bfd_error_file_too_big); | |
1431 | return -1; | |
1432 | } | |
1433 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
92bc0e80 | 1434 | } |
7a6e0d89 AM |
1435 | #if GCC_VERSION >= 4003 |
1436 | # pragma GCC diagnostic pop | |
1437 | #endif | |
92bc0e80 | 1438 | |
19765f52 IS |
1439 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1440 | of the fields in the relocation information vary per target endian-ness. */ | |
1441 | ||
bcb51645 | 1442 | void |
19765f52 | 1443 | bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel, |
c6643fcc | 1444 | unsigned char *fields) |
19765f52 IS |
1445 | { |
1446 | unsigned char info = fields[3]; | |
1447 | ||
1448 | if (bfd_big_endian (abfd)) | |
1449 | { | |
1450 | rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2]; | |
1451 | rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1452 | rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0; | |
68ffbac6 | 1453 | rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT) |
19765f52 IS |
1454 | & BFD_MACH_O_LENGTH_MASK; |
1455 | rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0; | |
1456 | } | |
1457 | else | |
1458 | { | |
1459 | rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0]; | |
1460 | rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK; | |
1461 | rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0; | |
68ffbac6 | 1462 | rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT) |
19765f52 IS |
1463 | & BFD_MACH_O_LENGTH_MASK; |
1464 | rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0; | |
1465 | } | |
1466 | } | |
1467 | ||
bcb51645 TG |
1468 | /* Set syms_ptr_ptr and addend of RES. */ |
1469 | ||
1470 | bfd_boolean | |
1471 | bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd, | |
1472 | bfd_mach_o_reloc_info *reloc, | |
1473 | arelent *res, asymbol **syms) | |
92bc0e80 | 1474 | { |
046b007d | 1475 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bcb51645 | 1476 | unsigned int num; |
b32e07d7 TG |
1477 | asymbol **sym; |
1478 | ||
bcb51645 TG |
1479 | /* Non-scattered relocation. */ |
1480 | reloc->r_scattered = 0; | |
1481 | res->addend = 0; | |
1482 | ||
1483 | num = reloc->r_value; | |
1484 | ||
1485 | if (reloc->r_extern) | |
1486 | { | |
1487 | /* PR 17512: file: 8396-1185-0.004. */ | |
1488 | if (num >= (unsigned) bfd_mach_o_count_symbols (abfd)) | |
1489 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1490 | else if (syms == NULL) | |
1491 | sym = bfd_und_section_ptr->symbol_ptr_ptr; | |
1492 | else | |
1493 | /* An external symbol number. */ | |
1494 | sym = syms + num; | |
1495 | } | |
1496 | else if (num == 0x00ffffff || num == 0) | |
1497 | { | |
1498 | /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this | |
1499 | is generic code, we don't know wether this is really a PAIR. | |
1500 | This value is almost certainly not a valid section number, hence | |
1501 | this specific case to avoid an assertion failure. | |
1502 | Target specific swap_reloc_in routine should adjust that. */ | |
1503 | sym = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1504 | } | |
1505 | else | |
1506 | { | |
1507 | /* PR 17512: file: 006-2964-0.004. */ | |
1508 | if (num > mdata->nsects) | |
1509 | return FALSE; | |
1510 | ||
1511 | /* A section number. */ | |
1512 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1513 | /* For a symbol defined in section S, the addend (stored in the | |
1514 | binary) contains the address of the section. To comply with | |
1515 | bfd convention, subtract the section address. | |
1516 | Use the address from the header, so that the user can modify | |
07d6d2b8 | 1517 | the vma of the section. */ |
bcb51645 TG |
1518 | res->addend = -mdata->sections[num - 1]->addr; |
1519 | } | |
1520 | ||
1521 | /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset | |
1522 | in the lower 16bits of the address value. So we have to find the | |
1523 | 'symbol' from the preceding reloc. We do this even though the | |
1524 | section symbol is probably not needed here, because NULL symbol | |
1525 | values cause an assert in generic BFD code. This must be done in | |
1526 | the PPC swap_reloc_in routine. */ | |
1527 | res->sym_ptr_ptr = sym; | |
1528 | ||
1529 | return TRUE; | |
1530 | } | |
1531 | ||
1532 | /* Do most of the work for canonicalize_relocs on RAW: create internal | |
1533 | representation RELOC and set most fields of RES using symbol table SYMS. | |
1534 | Each target still has to set the howto of RES and possibly adjust other | |
1535 | fields. | |
1536 | Previously the Mach-O hook point was simply swap_in, but some targets | |
1537 | (like arm64) don't follow the generic rules (symnum is a value for the | |
1538 | non-scattered relocation ADDEND). */ | |
1539 | ||
1540 | bfd_boolean | |
1541 | bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd, | |
1542 | struct mach_o_reloc_info_external *raw, | |
1543 | bfd_mach_o_reloc_info *reloc, | |
1544 | arelent *res, asymbol **syms) | |
1545 | { | |
1546 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1547 | bfd_vma addr; | |
1548 | ||
46d1c23b | 1549 | addr = bfd_get_32 (abfd, raw->r_address); |
19765f52 IS |
1550 | res->sym_ptr_ptr = NULL; |
1551 | res->addend = 0; | |
f4716ee2 | 1552 | |
b32e07d7 TG |
1553 | if (addr & BFD_MACH_O_SR_SCATTERED) |
1554 | { | |
1555 | unsigned int j; | |
19765f52 | 1556 | bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum); |
b32e07d7 | 1557 | |
19765f52 | 1558 | /* Scattered relocation, can't be extern. */ |
bcb51645 TG |
1559 | reloc->r_scattered = 1; |
1560 | reloc->r_extern = 0; | |
19765f52 IS |
1561 | |
1562 | /* Extract section and offset from r_value (symnum). */ | |
bcb51645 | 1563 | reloc->r_value = symnum; |
19765f52 IS |
1564 | /* FIXME: This breaks when a symbol in a reloc exactly follows the |
1565 | end of the data for the section (e.g. in a calculation of section | |
1566 | data length). At present, the symbol will end up associated with | |
1567 | the following section or, if it falls within alignment padding, as | |
1568 | null - which will assert later. */ | |
b32e07d7 | 1569 | for (j = 0; j < mdata->nsects; j++) |
07d6d2b8 AM |
1570 | { |
1571 | bfd_mach_o_section *sect = mdata->sections[j]; | |
1572 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
1573 | { | |
1574 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1575 | res->addend = symnum - sect->addr; | |
1576 | break; | |
1577 | } | |
1578 | } | |
19765f52 IS |
1579 | |
1580 | /* Extract the info and address fields from r_address. */ | |
bcb51645 TG |
1581 | reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
1582 | reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1583 | reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
1584 | reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr); | |
19765f52 | 1585 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); |
b32e07d7 TG |
1586 | } |
1587 | else | |
1588 | { | |
19765f52 | 1589 | /* Non-scattered relocation. */ |
bcb51645 TG |
1590 | reloc->r_scattered = 0; |
1591 | reloc->r_address = addr; | |
1592 | res->address = addr; | |
f4716ee2 | 1593 | |
19765f52 | 1594 | /* The value and info fields have to be extracted dependent on target |
07d6d2b8 | 1595 | endian-ness. */ |
bcb51645 | 1596 | bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum); |
19765f52 | 1597 | |
bcb51645 TG |
1598 | if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc, |
1599 | res, syms)) | |
1600 | return FALSE; | |
b32e07d7 | 1601 | } |
f4716ee2 TG |
1602 | |
1603 | /* We have set up a reloc with all the information present, so the swapper | |
1604 | can modify address, value and addend fields, if necessary, to convey | |
1605 | information in the generic BFD reloc that is mach-o specific. */ | |
19765f52 | 1606 | |
bcb51645 | 1607 | return TRUE; |
b32e07d7 TG |
1608 | } |
1609 | ||
1610 | static int | |
1611 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
07d6d2b8 AM |
1612 | unsigned long count, |
1613 | arelent *res, asymbol **syms) | |
b32e07d7 | 1614 | { |
bcb51645 | 1615 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
92bc0e80 | 1616 | unsigned long i; |
46d1c23b | 1617 | struct mach_o_reloc_info_external *native_relocs; |
92bc0e80 TG |
1618 | bfd_size_type native_size; |
1619 | ||
92bc0e80 | 1620 | /* Allocate and read relocs. */ |
b32e07d7 | 1621 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
033539e2 | 1622 | |
64d29018 NC |
1623 | /* PR 17512: file: 09477b57. */ |
1624 | if (native_size < count) | |
1625 | return -1; | |
1626 | ||
46d1c23b TG |
1627 | native_relocs = |
1628 | (struct mach_o_reloc_info_external *) bfd_malloc (native_size); | |
92bc0e80 TG |
1629 | if (native_relocs == NULL) |
1630 | return -1; | |
1631 | ||
b32e07d7 | 1632 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
92bc0e80 | 1633 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
b32e07d7 TG |
1634 | goto err; |
1635 | ||
1636 | for (i = 0; i < count; i++) | |
92bc0e80 | 1637 | { |
bcb51645 | 1638 | if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i], |
ca4cf9b9 | 1639 | &res[i], syms, res)) |
07d6d2b8 | 1640 | goto err; |
92bc0e80 | 1641 | } |
b32e07d7 TG |
1642 | free (native_relocs); |
1643 | return i; | |
1644 | err: | |
1645 | free (native_relocs); | |
1646 | return -1; | |
1647 | } | |
1648 | ||
1649 | long | |
1650 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
07d6d2b8 | 1651 | arelent **rels, asymbol **syms) |
b32e07d7 TG |
1652 | { |
1653 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1654 | unsigned long i; | |
1655 | arelent *res; | |
1656 | ||
1657 | if (asect->reloc_count == 0) | |
1658 | return 0; | |
1659 | ||
1660 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1661 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 | 1662 | return 0; |
92bc0e80 | 1663 | |
dff55db0 | 1664 | if (asect->relocation == NULL) |
92bc0e80 | 1665 | { |
64d29018 NC |
1666 | if (asect->reloc_count * sizeof (arelent) < asect->reloc_count) |
1667 | return -1; | |
dff55db0 TG |
1668 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); |
1669 | if (res == NULL) | |
07d6d2b8 | 1670 | return -1; |
dff55db0 TG |
1671 | |
1672 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
07d6d2b8 AM |
1673 | asect->reloc_count, res, syms) < 0) |
1674 | { | |
1675 | free (res); | |
1676 | return -1; | |
1677 | } | |
dff55db0 | 1678 | asect->relocation = res; |
92bc0e80 TG |
1679 | } |
1680 | ||
dff55db0 | 1681 | res = asect->relocation; |
92bc0e80 | 1682 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1683 | rels[i] = &res[i]; |
1684 | rels[i] = NULL; | |
92bc0e80 | 1685 | |
b32e07d7 TG |
1686 | return i; |
1687 | } | |
92bc0e80 | 1688 | |
b32e07d7 TG |
1689 | long |
1690 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1691 | { | |
1692 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1693 | |
b32e07d7 TG |
1694 | if (mdata->dysymtab == NULL) |
1695 | return 1; | |
dff55db0 | 1696 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1697 | * sizeof (arelent *); |
1698 | } | |
92bc0e80 | 1699 | |
b32e07d7 TG |
1700 | long |
1701 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
07d6d2b8 | 1702 | struct bfd_symbol **syms) |
b32e07d7 TG |
1703 | { |
1704 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1705 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1706 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1707 | unsigned long i; | |
1708 | arelent *res; | |
1709 | ||
1710 | if (dysymtab == NULL) | |
1711 | return 0; | |
1712 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1713 | return 0; | |
1714 | ||
1715 | /* No need to go further if we don't know how to read relocs. */ | |
bcb51645 | 1716 | if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL) |
b32e07d7 TG |
1717 | return 0; |
1718 | ||
dff55db0 | 1719 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1720 | { |
64d29018 NC |
1721 | if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent) |
1722 | < (dysymtab->nextrel + dysymtab->nlocrel)) | |
1723 | return -1; | |
1724 | ||
dff55db0 | 1725 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) |
07d6d2b8 | 1726 | * sizeof (arelent)); |
dff55db0 | 1727 | if (res == NULL) |
07d6d2b8 | 1728 | return -1; |
b32e07d7 | 1729 | |
dff55db0 | 1730 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
07d6d2b8 AM |
1731 | dysymtab->nextrel, res, syms) < 0) |
1732 | { | |
1733 | free (res); | |
1734 | return -1; | |
1735 | } | |
dff55db0 TG |
1736 | |
1737 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
07d6d2b8 AM |
1738 | dysymtab->nlocrel, |
1739 | res + dysymtab->nextrel, syms) < 0) | |
1740 | { | |
1741 | free (res); | |
1742 | return -1; | |
1743 | } | |
dff55db0 TG |
1744 | |
1745 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1746 | } |
1747 | ||
dff55db0 | 1748 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1749 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1750 | rels[i] = &res[i]; | |
1751 | rels[i] = NULL; | |
92bc0e80 TG |
1752 | return i; |
1753 | } | |
1754 | ||
19765f52 IS |
1755 | /* In addition to the need to byte-swap the symbol number, the bit positions |
1756 | of the fields in the relocation information vary per target endian-ness. */ | |
1757 | ||
1758 | static void | |
1759 | bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields, | |
c6643fcc | 1760 | bfd_mach_o_reloc_info *rel) |
19765f52 IS |
1761 | { |
1762 | unsigned char info = 0; | |
1763 | ||
1764 | BFD_ASSERT (rel->r_type <= 15); | |
1765 | BFD_ASSERT (rel->r_length <= 3); | |
1766 | ||
1767 | if (bfd_big_endian (abfd)) | |
1768 | { | |
1769 | fields[0] = (rel->r_value >> 16) & 0xff; | |
1770 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1771 | fields[2] = rel->r_value & 0xff; | |
1772 | info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT; | |
1773 | info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0; | |
1774 | info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT; | |
1775 | info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0; | |
1776 | } | |
1777 | else | |
1778 | { | |
1779 | fields[2] = (rel->r_value >> 16) & 0xff; | |
1780 | fields[1] = (rel->r_value >> 8) & 0xff; | |
1781 | fields[0] = rel->r_value & 0xff; | |
1782 | info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT; | |
1783 | info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0; | |
1784 | info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT; | |
1785 | info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0; | |
1786 | } | |
1787 | fields[3] = info; | |
1788 | } | |
1789 | ||
92bc0e80 | 1790 | static bfd_boolean |
ab273af8 | 1791 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1792 | { |
92bc0e80 TG |
1793 | unsigned int i; |
1794 | arelent **entries; | |
1795 | asection *sec; | |
1796 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1797 | ||
1798 | sec = section->bfdsection; | |
1799 | if (sec->reloc_count == 0) | |
1800 | return TRUE; | |
1801 | ||
1802 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1803 | return TRUE; | |
1804 | ||
92bc0e80 TG |
1805 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
1806 | return FALSE; | |
1807 | ||
1808 | /* Convert and write. */ | |
1809 | entries = section->bfdsection->orelocation; | |
1810 | for (i = 0; i < section->nreloc; i++) | |
1811 | { | |
1812 | arelent *rel = entries[i]; | |
46d1c23b | 1813 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1814 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1815 | ||
1816 | /* Convert relocation to an intermediate representation. */ | |
1817 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
07d6d2b8 | 1818 | return FALSE; |
92bc0e80 TG |
1819 | |
1820 | /* Lower the relocation info. */ | |
1821 | if (pinfo->r_scattered) | |
07d6d2b8 AM |
1822 | { |
1823 | unsigned long v; | |
1824 | ||
1825 | v = BFD_MACH_O_SR_SCATTERED | |
1826 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1827 | | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length) | |
1828 | | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type) | |
1829 | | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address); | |
1830 | /* Note: scattered relocs have field in reverse order... */ | |
1831 | bfd_put_32 (abfd, v, raw.r_address); | |
1832 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
1833 | } | |
92bc0e80 | 1834 | else |
07d6d2b8 AM |
1835 | { |
1836 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); | |
1837 | bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum, | |
19765f52 | 1838 | pinfo); |
07d6d2b8 | 1839 | } |
92bc0e80 | 1840 | |
46d1c23b | 1841 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
07d6d2b8 AM |
1842 | != BFD_MACH_O_RELENT_SIZE) |
1843 | return FALSE; | |
92bc0e80 TG |
1844 | } |
1845 | return TRUE; | |
1846 | } | |
1847 | ||
452216ab | 1848 | static bfd_boolean |
ab273af8 | 1849 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1850 | { |
46d1c23b TG |
1851 | struct mach_o_section_32_external raw; |
1852 | ||
1853 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1854 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1855 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1856 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1857 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1858 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1859 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1860 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1861 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1862 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1863 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1864 | ||
1865 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1866 | != BFD_MACH_O_SECTION_SIZE) |
452216ab | 1867 | return FALSE; |
116c20d2 | 1868 | |
452216ab | 1869 | return TRUE; |
116c20d2 NC |
1870 | } |
1871 | ||
452216ab | 1872 | static bfd_boolean |
ab273af8 | 1873 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1874 | { |
46d1c23b TG |
1875 | struct mach_o_section_64_external raw; |
1876 | ||
1877 | memcpy (raw.sectname, section->sectname, 16); | |
1878 | memcpy (raw.segname, section->segname, 16); | |
1879 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1880 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1881 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1882 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1883 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1884 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1885 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1886 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1887 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1888 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1889 | ||
1890 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1891 | != BFD_MACH_O_SECTION_64_SIZE) |
452216ab | 1892 | return FALSE; |
116c20d2 | 1893 | |
452216ab | 1894 | return TRUE; |
1e8a024a TG |
1895 | } |
1896 | ||
452216ab | 1897 | static bfd_boolean |
ab273af8 | 1898 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1899 | { |
46d1c23b | 1900 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1901 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1902 | bfd_mach_o_section *sec; |
1e8a024a | 1903 | |
c2f09c75 TG |
1904 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1905 | ||
f1bde64c TG |
1906 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1907 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1908 | return FALSE; |
c2f09c75 | 1909 | |
46d1c23b TG |
1910 | memcpy (raw.segname, seg->segname, 16); |
1911 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1912 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1913 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1914 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1915 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1916 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1917 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1918 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
68ffbac6 | 1919 | |
46d1c23b TG |
1920 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1921 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1922 | return FALSE; |
1e8a024a | 1923 | |
f1bde64c | 1924 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1925 | if (!bfd_mach_o_write_section_32 (abfd, sec)) |
1926 | return FALSE; | |
1e8a024a | 1927 | |
452216ab | 1928 | return TRUE; |
116c20d2 NC |
1929 | } |
1930 | ||
452216ab | 1931 | static bfd_boolean |
ab273af8 | 1932 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1933 | { |
46d1c23b | 1934 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1935 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1936 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1937 | |
1938 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1939 | ||
f1bde64c TG |
1940 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1941 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
452216ab | 1942 | return FALSE; |
c2f09c75 | 1943 | |
46d1c23b TG |
1944 | memcpy (raw.segname, seg->segname, 16); |
1945 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1946 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1947 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1948 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1949 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1950 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1951 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1952 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1953 | ||
1954 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1955 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
452216ab | 1956 | return FALSE; |
c2f09c75 | 1957 | |
f1bde64c | 1958 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
452216ab TG |
1959 | if (!bfd_mach_o_write_section_64 (abfd, sec)) |
1960 | return FALSE; | |
c2f09c75 | 1961 | |
452216ab | 1962 | return TRUE; |
1e8a024a TG |
1963 | } |
1964 | ||
c2f09c75 | 1965 | static bfd_boolean |
c9ffd2ea | 1966 | bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym) |
116c20d2 | 1967 | { |
046b007d | 1968 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1969 | unsigned long i; |
c2f09c75 | 1970 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
c2f09c75 TG |
1971 | struct bfd_strtab_hash *strtab; |
1972 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
c9ffd2ea | 1973 | int padlen; |
c2f09c75 TG |
1974 | |
1975 | /* Write the symbols first. */ | |
1976 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) | |
1977 | return FALSE; | |
1978 | ||
c2f09c75 TG |
1979 | strtab = _bfd_stringtab_init (); |
1980 | if (strtab == NULL) | |
1981 | return FALSE; | |
116c20d2 | 1982 | |
a4551119 TG |
1983 | if (sym->nsyms > 0) |
1984 | /* Although we don't strictly need to do this, for compatibility with | |
1985 | Darwin system tools, actually output an empty string for the index | |
1986 | 0 entry. */ | |
1987 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
1988 | ||
116c20d2 NC |
1989 | for (i = 0; i < sym->nsyms; i++) |
1990 | { | |
91d6fa6a | 1991 | bfd_size_type str_index; |
92bc0e80 | 1992 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
68ffbac6 | 1993 | |
92bc0e80 | 1994 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 1995 | /* An index of 0 always means the empty string. */ |
07d6d2b8 | 1996 | str_index = 0; |
c2f09c75 | 1997 | else |
07d6d2b8 AM |
1998 | { |
1999 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); | |
7f307238 | 2000 | |
07d6d2b8 AM |
2001 | if (str_index == (bfd_size_type) -1) |
2002 | goto err; | |
2003 | } | |
46d1c23b | 2004 | |
c2f09c75 | 2005 | if (wide) |
07d6d2b8 AM |
2006 | { |
2007 | struct mach_o_nlist_64_external raw; | |
2008 | ||
2009 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
2010 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
2011 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
2012 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2013 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
2014 | raw.n_value); | |
2015 | ||
2016 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2017 | goto err; | |
2018 | } | |
c2f09c75 | 2019 | else |
07d6d2b8 AM |
2020 | { |
2021 | struct mach_o_nlist_external raw; | |
116c20d2 | 2022 | |
07d6d2b8 AM |
2023 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
2024 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
2025 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
2026 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
2027 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
2028 | raw.n_value); | |
46d1c23b | 2029 | |
07d6d2b8 AM |
2030 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
2031 | goto err; | |
2032 | } | |
116c20d2 | 2033 | } |
c2f09c75 | 2034 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
2035 | sym->stroff = mdata->filelen; |
2036 | mdata->filelen += sym->strsize; | |
116c20d2 | 2037 | |
c9ffd2ea | 2038 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0) |
64d29018 | 2039 | goto err; |
c9ffd2ea | 2040 | |
535b785f | 2041 | if (!_bfd_stringtab_emit (abfd, strtab)) |
c2f09c75 | 2042 | goto err; |
116c20d2 | 2043 | |
c9ffd2ea TG |
2044 | /* Pad string table. */ |
2045 | padlen = bfd_mach_o_pad4 (abfd, sym->strsize); | |
2046 | if (padlen < 0) | |
2047 | return FALSE; | |
2048 | mdata->filelen += padlen; | |
2049 | sym->strsize += padlen; | |
116c20d2 | 2050 | |
c2f09c75 | 2051 | return TRUE; |
116c20d2 | 2052 | |
c2f09c75 TG |
2053 | err: |
2054 | _bfd_stringtab_free (strtab); | |
64d29018 | 2055 | sym->strsize = 0; |
c2f09c75 | 2056 | return FALSE; |
116c20d2 NC |
2057 | } |
2058 | ||
c9ffd2ea TG |
2059 | static bfd_boolean |
2060 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2061 | { | |
2062 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
2063 | struct mach_o_symtab_command_external raw; | |
2064 | ||
2065 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
2066 | ||
2067 | /* The command. */ | |
2068 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); | |
2069 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
2070 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
2071 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
2072 | ||
2073 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
2074 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2075 | return FALSE; | |
2076 | ||
2077 | return TRUE; | |
2078 | } | |
2079 | ||
2080 | /* Count the number of indirect symbols in the image. | |
2081 | Requires that the sections are in their final order. */ | |
2082 | ||
2083 | static unsigned int | |
2084 | bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2085 | { | |
2086 | unsigned int i; | |
2087 | unsigned int nisyms = 0; | |
2088 | ||
2089 | for (i = 0; i < mdata->nsects; ++i) | |
2090 | { | |
2091 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2092 | ||
2093 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2094 | { | |
2095 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2096 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2097 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2098 | nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2099 | break; | |
2100 | default: | |
2101 | break; | |
2102 | } | |
2103 | } | |
2104 | return nisyms; | |
2105 | } | |
2106 | ||
2107 | /* Create the dysymtab. */ | |
2108 | ||
2109 | static bfd_boolean | |
2110 | bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd) | |
2111 | { | |
2112 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2113 | ||
2114 | /* TODO: | |
2115 | We are not going to try and fill these in yet and, moreover, we are | |
2116 | going to bail if they are already set. */ | |
2117 | if (cmd->nmodtab != 0 | |
2118 | || cmd->ntoc != 0 | |
2119 | || cmd->nextrefsyms != 0) | |
2120 | { | |
4eca0228 AM |
2121 | _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet" |
2122 | " implemented for dysymtab commands.")); | |
c9ffd2ea TG |
2123 | return FALSE; |
2124 | } | |
2125 | ||
2126 | cmd->ilocalsym = 0; | |
2127 | ||
2128 | if (bfd_get_symcount (abfd) > 0) | |
2129 | { | |
2130 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2131 | unsigned long i; | |
2132 | ||
2133 | /* Count the number of each kind of symbol. */ | |
2134 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
2135 | { | |
2136 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2137 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
2138 | break; | |
2139 | } | |
2140 | cmd->nlocalsym = i; | |
2141 | cmd->iextdefsym = i; | |
2142 | for (; i < bfd_get_symcount (abfd); ++i) | |
2143 | { | |
2144 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2145 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
2146 | break; | |
2147 | } | |
2148 | cmd->nextdefsym = i - cmd->nlocalsym; | |
2149 | cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym; | |
2150 | cmd->nundefsym = bfd_get_symcount (abfd) | |
2151 | - cmd->nlocalsym | |
2152 | - cmd->nextdefsym; | |
2153 | } | |
2154 | else | |
2155 | { | |
2156 | cmd->nlocalsym = 0; | |
2157 | cmd->iextdefsym = 0; | |
2158 | cmd->nextdefsym = 0; | |
2159 | cmd->iundefsym = 0; | |
2160 | cmd->nundefsym = 0; | |
2161 | } | |
2162 | ||
2163 | cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata); | |
2164 | if (cmd->nindirectsyms > 0) | |
2165 | { | |
2166 | unsigned i; | |
2167 | unsigned n; | |
2168 | ||
2169 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2170 | cmd->indirectsymoff = mdata->filelen; | |
2171 | mdata->filelen += cmd->nindirectsyms * 4; | |
2172 | ||
64d29018 NC |
2173 | if (cmd->nindirectsyms * 4 < cmd->nindirectsyms) |
2174 | return FALSE; | |
c9ffd2ea TG |
2175 | cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4); |
2176 | if (cmd->indirect_syms == NULL) | |
07d6d2b8 | 2177 | return FALSE; |
c9ffd2ea TG |
2178 | |
2179 | n = 0; | |
2180 | for (i = 0; i < mdata->nsects; ++i) | |
2181 | { | |
2182 | bfd_mach_o_section *sec = mdata->sections[i]; | |
2183 | ||
2184 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2185 | { | |
2186 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
2187 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
2188 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
2189 | { | |
2190 | unsigned j, num; | |
2191 | bfd_mach_o_asymbol **isyms = sec->indirect_syms; | |
2192 | ||
2193 | num = bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
2194 | if (isyms == NULL || num == 0) | |
2195 | break; | |
2196 | /* Record the starting index in the reserved1 field. */ | |
2197 | sec->reserved1 = n; | |
2198 | for (j = 0; j < num; j++, n++) | |
2199 | { | |
2200 | if (isyms[j] == NULL) | |
07d6d2b8 | 2201 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL; |
c9ffd2ea TG |
2202 | else if (isyms[j]->symbol.section == bfd_abs_section_ptr |
2203 | && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT)) | |
07d6d2b8 | 2204 | cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL |
c9ffd2ea TG |
2205 | | BFD_MACH_O_INDIRECT_SYM_ABS; |
2206 | else | |
07d6d2b8 | 2207 | cmd->indirect_syms[n] = isyms[j]->symbol.udata.i; |
c9ffd2ea TG |
2208 | } |
2209 | } | |
2210 | break; | |
2211 | default: | |
2212 | break; | |
2213 | } | |
2214 | } | |
2215 | } | |
2216 | ||
2217 | return TRUE; | |
2218 | } | |
2219 | ||
7f307238 IS |
2220 | /* Write a dysymtab command. |
2221 | TODO: Possibly coalesce writes of smaller objects. */ | |
2222 | ||
2223 | static bfd_boolean | |
2224 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) | |
2225 | { | |
2226 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
2227 | ||
2228 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
2229 | ||
2230 | if (cmd->nmodtab != 0) | |
2231 | { | |
2232 | unsigned int i; | |
2233 | ||
2234 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
2235 | return FALSE; | |
2236 | ||
2237 | for (i = 0; i < cmd->nmodtab; i++) | |
2238 | { | |
2239 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
2240 | unsigned int iinit; | |
2241 | unsigned int ninit; | |
2242 | ||
2243 | iinit = module->iinit & 0xffff; | |
2244 | iinit |= ((module->iterm & 0xffff) << 16); | |
2245 | ||
2246 | ninit = module->ninit & 0xffff; | |
2247 | ninit |= ((module->nterm & 0xffff) << 16); | |
2248 | ||
2249 | if (bfd_mach_o_wide_p (abfd)) | |
2250 | { | |
2251 | struct mach_o_dylib_module_64_external w; | |
2252 | ||
2253 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
2254 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
2255 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
2256 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
2257 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
2258 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
2259 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
2260 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
2261 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
2262 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
2263 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
2264 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
2265 | &w.objc_module_info_addr); | |
2266 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2267 | &w.objc_module_info_size); | |
2268 | ||
2269 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
2270 | return FALSE; | |
2271 | } | |
2272 | else | |
2273 | { | |
2274 | struct mach_o_dylib_module_external n; | |
2275 | ||
2276 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
2277 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
2278 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
2279 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
2280 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
2281 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
2282 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
2283 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
2284 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
2285 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
2286 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
2287 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
2288 | &n.objc_module_info_addr); | |
2289 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
2290 | &n.objc_module_info_size); | |
2291 | ||
2292 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
2293 | return FALSE; | |
2294 | } | |
2295 | } | |
2296 | } | |
2297 | ||
2298 | if (cmd->ntoc != 0) | |
2299 | { | |
2300 | unsigned int i; | |
2301 | ||
2302 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
2303 | return FALSE; | |
2304 | ||
2305 | for (i = 0; i < cmd->ntoc; i++) | |
2306 | { | |
2307 | struct mach_o_dylib_table_of_contents_external raw; | |
2308 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
2309 | ||
2310 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
2311 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
2312 | ||
2313 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2314 | return FALSE; | |
2315 | } | |
2316 | } | |
68ffbac6 | 2317 | |
7f307238 IS |
2318 | if (cmd->nindirectsyms > 0) |
2319 | { | |
2320 | unsigned int i; | |
2321 | ||
2322 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
2323 | return FALSE; | |
2324 | ||
2325 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
2326 | { | |
2327 | unsigned char raw[4]; | |
2328 | ||
2329 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
2330 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2331 | return FALSE; | |
68ffbac6 | 2332 | } |
7f307238 IS |
2333 | } |
2334 | ||
2335 | if (cmd->nextrefsyms != 0) | |
2336 | { | |
2337 | unsigned int i; | |
2338 | ||
2339 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
2340 | return FALSE; | |
2341 | ||
2342 | for (i = 0; i < cmd->nextrefsyms; i++) | |
2343 | { | |
2344 | unsigned long v; | |
2345 | unsigned char raw[4]; | |
2346 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
2347 | ||
2348 | /* Fields isym and flags are written as bit-fields, thus we need | |
2349 | a specific processing for endianness. */ | |
2350 | ||
2351 | if (bfd_big_endian (abfd)) | |
2352 | { | |
2353 | v = ((ref->isym & 0xffffff) << 8); | |
2354 | v |= ref->flags & 0xff; | |
2355 | } | |
2356 | else | |
2357 | { | |
2358 | v = ref->isym & 0xffffff; | |
2359 | v |= ((ref->flags & 0xff) << 24); | |
2360 | } | |
2361 | ||
2362 | bfd_h_put_32 (abfd, v, raw); | |
2363 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
2364 | return FALSE; | |
2365 | } | |
2366 | } | |
2367 | ||
2368 | /* The command. */ | |
2369 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
2370 | return FALSE; | |
2371 | else | |
2372 | { | |
2373 | struct mach_o_dysymtab_command_external raw; | |
2374 | ||
2375 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
2376 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
2377 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
2378 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
2379 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
2380 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
2381 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
2382 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
2383 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
2384 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
2385 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
2386 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
2387 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
2388 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
2389 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
2390 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
2391 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
2392 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
2393 | ||
2394 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2395 | return FALSE; | |
2396 | } | |
2397 | ||
2398 | return TRUE; | |
2399 | } | |
2400 | ||
2401 | static unsigned | |
b22161d6 | 2402 | bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s) |
7f307238 | 2403 | { |
b22161d6 | 2404 | unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE; |
68588f95 IS |
2405 | |
2406 | /* Just leave debug symbols where they are (pretend they are local, and | |
2407 | then they will just be sorted on position). */ | |
b22161d6 | 2408 | if (s->n_type & BFD_MACH_O_N_STAB) |
68588f95 IS |
2409 | return 0; |
2410 | ||
7f307238 | 2411 | /* Local (we should never see an undefined local AFAICT). */ |
b22161d6 | 2412 | if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
2413 | return 0; |
2414 | ||
2415 | /* Common symbols look like undefined externs. */ | |
68588f95 | 2416 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
2417 | return 2; |
2418 | ||
b22161d6 | 2419 | /* A defined non-local, non-debug symbol. */ |
7f307238 IS |
2420 | return 1; |
2421 | } | |
2422 | ||
2423 | static int | |
2424 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
2425 | { | |
2426 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
2427 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
2428 | unsigned int soa, sob; | |
2429 | ||
b22161d6 IS |
2430 | soa = bfd_mach_o_primary_symbol_sort_key (sa); |
2431 | sob = bfd_mach_o_primary_symbol_sort_key (sb); | |
7f307238 IS |
2432 | if (soa < sob) |
2433 | return -1; | |
2434 | ||
2435 | if (soa > sob) | |
2436 | return 1; | |
2437 | ||
68588f95 | 2438 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
2439 | if (soa == 0) |
2440 | { | |
2441 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
07d6d2b8 | 2442 | return -1; |
7f307238 | 2443 | if (sa->symbol.udata.i > sb->symbol.udata.i) |
07d6d2b8 | 2444 | return 1; |
b22161d6 IS |
2445 | |
2446 | /* This is probably an error. */ | |
7f307238 IS |
2447 | return 0; |
2448 | } | |
2449 | ||
b22161d6 IS |
2450 | /* The second sort key is name. */ |
2451 | return strcmp (sa->symbol.name, sb->symbol.name); | |
7f307238 IS |
2452 | } |
2453 | ||
2454 | /* Process the symbols. | |
2455 | ||
2456 | This should be OK for single-module files - but it is not likely to work | |
2457 | for multi-module shared libraries. | |
2458 | ||
2459 | (a) If the application has not filled in the relevant mach-o fields, make | |
2460 | an estimate. | |
2461 | ||
2462 | (b) Order them, like this: | |
2463 | ( i) local. | |
2464 | (unsorted) | |
2465 | ( ii) external defined | |
2466 | (by name) | |
b22161d6 | 2467 | (iii) external undefined/common |
7f307238 IS |
2468 | (by name) |
2469 | ( iv) common | |
2470 | (by name) | |
b22161d6 | 2471 | */ |
92bc0e80 TG |
2472 | |
2473 | static bfd_boolean | |
b22161d6 | 2474 | bfd_mach_o_mangle_symbols (bfd *abfd) |
92bc0e80 TG |
2475 | { |
2476 | unsigned long i; | |
2477 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
2478 | ||
7f307238 IS |
2479 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
2480 | return TRUE; | |
2481 | ||
92bc0e80 TG |
2482 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
2483 | { | |
2484 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2485 | ||
b22161d6 IS |
2486 | /* We use this value, which is out-of-range as a symbol index, to signal |
2487 | that the mach-o-specific data are not filled in and need to be created | |
2488 | from the bfd values. It is much preferable for the application to do | |
2489 | this, since more meaningful diagnostics can be made that way. */ | |
2490 | ||
2491 | if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET) | |
07d6d2b8 AM |
2492 | { |
2493 | /* No symbol information has been set - therefore determine | |
2494 | it from the bfd symbol flags/info. */ | |
2495 | if (s->symbol.section == bfd_abs_section_ptr) | |
2496 | s->n_type = BFD_MACH_O_N_ABS; | |
2497 | else if (s->symbol.section == bfd_und_section_ptr) | |
2498 | { | |
2499 | s->n_type = BFD_MACH_O_N_UNDF; | |
2500 | if (s->symbol.flags & BSF_WEAK) | |
2501 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
2502 | /* mach-o automatically makes undefined symbols extern. */ | |
7f307238 | 2503 | s->n_type |= BFD_MACH_O_N_EXT; |
b22161d6 | 2504 | s->symbol.flags |= BSF_GLOBAL; |
07d6d2b8 AM |
2505 | } |
2506 | else if (s->symbol.section == bfd_com_section_ptr) | |
b22161d6 | 2507 | { |
07d6d2b8 AM |
2508 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; |
2509 | s->symbol.flags |= BSF_GLOBAL; | |
2510 | } | |
2511 | else | |
2512 | s->n_type = BFD_MACH_O_N_SECT; | |
07d6d2b8 | 2513 | } |
92bc0e80 | 2514 | |
ae19acf3 | 2515 | /* Update external symbol bit in case objcopy changed it. */ |
2516 | if (s->symbol.flags & BSF_GLOBAL) | |
2517 | s->n_type |= BFD_MACH_O_N_EXT; | |
2518 | else | |
2519 | s->n_type &= ~BFD_MACH_O_N_EXT; | |
2520 | ||
7f307238 | 2521 | /* Put the section index in, where required. */ |
68588f95 | 2522 | if ((s->symbol.section != bfd_abs_section_ptr |
07d6d2b8 AM |
2523 | && s->symbol.section != bfd_und_section_ptr |
2524 | && s->symbol.section != bfd_com_section_ptr) | |
2525 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 | |
2526 | && s->symbol.name == NULL)) | |
707e555b | 2527 | s->n_sect = s->symbol.section->output_section->target_index; |
92bc0e80 | 2528 | |
b22161d6 IS |
2529 | /* Number to preserve order for local and debug syms. */ |
2530 | s->symbol.udata.i = i; | |
7f307238 IS |
2531 | } |
2532 | ||
b22161d6 IS |
2533 | /* Sort the symbols. */ |
2534 | qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd), | |
2535 | sizeof (asymbol *), bfd_mach_o_cf_symbols); | |
7f307238 | 2536 | |
b22161d6 IS |
2537 | for (i = 0; i < bfd_get_symcount (abfd); ++i) |
2538 | { | |
2539 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
2540 | s->symbol.udata.i = i; /* renumber. */ | |
7f307238 IS |
2541 | } |
2542 | ||
2543 | return TRUE; | |
2544 | } | |
2545 | ||
2546 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
2547 | Fill in the section number and other mach-o-specific data. */ | |
2548 | ||
2549 | static bfd_boolean | |
2550 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
2551 | { | |
2552 | asection *sec; | |
2553 | unsigned target_index; | |
2554 | unsigned nsect; | |
2555 | ||
2556 | nsect = bfd_count_sections (abfd); | |
68ffbac6 | 2557 | |
7f307238 IS |
2558 | /* Don't do it if it's already set - assume the application knows what it's |
2559 | doing. */ | |
2560 | if (mdata->nsects == nsect | |
2561 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
2562 | return TRUE; | |
2563 | ||
a1165289 NC |
2564 | /* We need to check that this can be done... */ |
2565 | if (nsect > 255) | |
2566 | { | |
4eca0228 AM |
2567 | _bfd_error_handler (_("mach-o: there are too many sections (%u)" |
2568 | " maximum is 255,\n"), nsect); | |
a1165289 NC |
2569 | return FALSE; |
2570 | } | |
2571 | ||
7f307238 | 2572 | mdata->nsects = nsect; |
64d29018 NC |
2573 | mdata->sections = bfd_alloc2 (abfd, |
2574 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
7f307238 IS |
2575 | if (mdata->sections == NULL) |
2576 | return FALSE; | |
2577 | ||
7f307238 | 2578 | /* Create Mach-O sections. |
68ffbac6 | 2579 | Section type, attribute and align should have been set when the |
7f307238 IS |
2580 | section was created - either read in or specified. */ |
2581 | target_index = 0; | |
2582 | for (sec = abfd->sections; sec; sec = sec->next) | |
2583 | { | |
2584 | unsigned bfd_align = bfd_get_section_alignment (abfd, sec); | |
2585 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); | |
2586 | ||
2587 | mdata->sections[target_index] = msect; | |
2588 | ||
2589 | msect->addr = bfd_get_section_vma (abfd, sec); | |
2590 | msect->size = bfd_get_section_size (sec); | |
2591 | ||
68ffbac6 | 2592 | /* Use the largest alignment set, in case it was bumped after the |
7f307238 IS |
2593 | section was created. */ |
2594 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
2595 | ||
2596 | msect->offset = 0; | |
2597 | sec->target_index = ++target_index; | |
92bc0e80 | 2598 | } |
7f307238 | 2599 | |
92bc0e80 TG |
2600 | return TRUE; |
2601 | } | |
2602 | ||
154a1ee5 | 2603 | bfd_boolean |
116c20d2 | 2604 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b | 2605 | { |
046b007d | 2606 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
2607 | bfd_mach_o_load_command *cmd; |
2608 | bfd_mach_o_symtab_command *symtab = NULL; | |
2609 | bfd_mach_o_dysymtab_command *dysymtab = NULL; | |
2610 | bfd_mach_o_segment_command *linkedit = NULL; | |
3af9a47b | 2611 | |
7f307238 | 2612 | /* Make the commands, if not already present. */ |
c9ffd2ea TG |
2613 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
2614 | return FALSE; | |
2615 | abfd->output_has_begun = TRUE; | |
92bc0e80 | 2616 | |
c9ffd2ea | 2617 | /* Write the header. */ |
154a1ee5 | 2618 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 2619 | return FALSE; |
3af9a47b | 2620 | |
c9ffd2ea TG |
2621 | /* First pass: allocate the linkedit segment. */ |
2622 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
2623 | switch (cmd->type) | |
2624 | { | |
2625 | case BFD_MACH_O_LC_SEGMENT_64: | |
2626 | case BFD_MACH_O_LC_SEGMENT: | |
2627 | if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0) | |
2628 | linkedit = &cmd->command.segment; | |
2629 | break; | |
2630 | case BFD_MACH_O_LC_SYMTAB: | |
2631 | symtab = &cmd->command.symtab; | |
2632 | break; | |
2633 | case BFD_MACH_O_LC_DYSYMTAB: | |
2634 | dysymtab = &cmd->command.dysymtab; | |
2635 | break; | |
2636 | case BFD_MACH_O_LC_DYLD_INFO: | |
2637 | { | |
2638 | bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info; | |
2639 | ||
2640 | if (di->rebase_size != 0) | |
2641 | { | |
2642 | di->rebase_off = mdata->filelen; | |
2643 | mdata->filelen += di->rebase_size; | |
2644 | } | |
2645 | if (di->bind_size != 0) | |
2646 | { | |
2647 | di->bind_off = mdata->filelen; | |
2648 | mdata->filelen += di->bind_size; | |
2649 | } | |
2650 | if (di->weak_bind_size != 0) | |
2651 | { | |
2652 | di->weak_bind_off = mdata->filelen; | |
2653 | mdata->filelen += di->weak_bind_size; | |
2654 | } | |
2655 | if (di->lazy_bind_size != 0) | |
2656 | { | |
2657 | di->lazy_bind_off = mdata->filelen; | |
2658 | mdata->filelen += di->lazy_bind_size; | |
2659 | } | |
2660 | if (di->export_size != 0) | |
2661 | { | |
2662 | di->export_off = mdata->filelen; | |
2663 | mdata->filelen += di->export_size; | |
2664 | } | |
2665 | } | |
2666 | break; | |
2667 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2668 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2669 | case BFD_MACH_O_LC_MAIN: | |
2670 | /* Nothing to do. */ | |
2671 | break; | |
2672 | default: | |
4eca0228 | 2673 | _bfd_error_handler |
d42c267e AM |
2674 | (_("unable to allocate data for load command %#x"), |
2675 | cmd->type); | |
c9ffd2ea TG |
2676 | break; |
2677 | } | |
2678 | ||
2679 | /* Specially handle symtab and dysymtab. */ | |
2680 | ||
2681 | /* Pre-allocate the symbol table (but not the string table). The reason | |
2682 | is that the dysymtab is after the symbol table but before the string | |
2683 | table (required by the native strip tool). */ | |
2684 | if (symtab != NULL) | |
2685 | { | |
2686 | unsigned int symlen; | |
2687 | unsigned int wide = bfd_mach_o_wide_p (abfd); | |
2688 | ||
2689 | symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
2690 | ||
2691 | /* Align for symbols. */ | |
2692 | mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2); | |
2693 | symtab->symoff = mdata->filelen; | |
2694 | ||
2695 | symtab->nsyms = bfd_get_symcount (abfd); | |
2696 | mdata->filelen += symtab->nsyms * symlen; | |
2697 | } | |
2698 | ||
2699 | /* Build the dysymtab. */ | |
2700 | if (dysymtab != NULL) | |
2701 | if (!bfd_mach_o_build_dysymtab (abfd, dysymtab)) | |
2702 | return FALSE; | |
2703 | ||
2704 | /* Write symtab and strtab. */ | |
2705 | if (symtab != NULL) | |
2706 | if (!bfd_mach_o_write_symtab_content (abfd, symtab)) | |
2707 | return FALSE; | |
2708 | ||
2709 | /* Adjust linkedit size. */ | |
2710 | if (linkedit != NULL) | |
2711 | { | |
2712 | /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */ | |
2713 | ||
2714 | linkedit->vmsize = mdata->filelen - linkedit->fileoff; | |
2715 | /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */ | |
2716 | linkedit->filesize = mdata->filelen - linkedit->fileoff; | |
2717 | ||
2718 | linkedit->initprot = BFD_MACH_O_PROT_READ; | |
2719 | linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2720 | | BFD_MACH_O_PROT_EXECUTE; | |
2721 | } | |
2722 | ||
2723 | /* Second pass: write commands. */ | |
2724 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) | |
3af9a47b | 2725 | { |
46d1c23b | 2726 | struct mach_o_load_command_external raw; |
3af9a47b NC |
2727 | unsigned long typeflag; |
2728 | ||
c9ffd2ea | 2729 | typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 2730 | |
46d1c23b | 2731 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
c9ffd2ea | 2732 | bfd_h_put_32 (abfd, cmd->len, raw.cmdsize); |
3af9a47b | 2733 | |
c9ffd2ea | 2734 | if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0 |
07d6d2b8 | 2735 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 2736 | return FALSE; |
3af9a47b | 2737 | |
c9ffd2ea | 2738 | switch (cmd->type) |
3af9a47b NC |
2739 | { |
2740 | case BFD_MACH_O_LC_SEGMENT: | |
c9ffd2ea | 2741 | if (!bfd_mach_o_write_segment_32 (abfd, cmd)) |
1e8a024a TG |
2742 | return FALSE; |
2743 | break; | |
2744 | case BFD_MACH_O_LC_SEGMENT_64: | |
c9ffd2ea | 2745 | if (!bfd_mach_o_write_segment_64 (abfd, cmd)) |
b34976b6 | 2746 | return FALSE; |
3af9a47b NC |
2747 | break; |
2748 | case BFD_MACH_O_LC_SYMTAB: | |
c9ffd2ea | 2749 | if (!bfd_mach_o_write_symtab (abfd, cmd)) |
b34976b6 | 2750 | return FALSE; |
3af9a47b | 2751 | break; |
7f307238 | 2752 | case BFD_MACH_O_LC_DYSYMTAB: |
c9ffd2ea | 2753 | if (!bfd_mach_o_write_dysymtab (abfd, cmd)) |
7f307238 IS |
2754 | return FALSE; |
2755 | break; | |
3af9a47b NC |
2756 | case BFD_MACH_O_LC_THREAD: |
2757 | case BFD_MACH_O_LC_UNIXTHREAD: | |
c9ffd2ea | 2758 | if (!bfd_mach_o_write_thread (abfd, cmd)) |
b34976b6 | 2759 | return FALSE; |
3af9a47b | 2760 | break; |
3af9a47b | 2761 | case BFD_MACH_O_LC_LOAD_DYLIB: |
c9ffd2ea TG |
2762 | if (!bfd_mach_o_write_dylib (abfd, cmd)) |
2763 | return FALSE; | |
2764 | break; | |
3af9a47b | 2765 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
c9ffd2ea TG |
2766 | if (!bfd_mach_o_write_dylinker (abfd, cmd)) |
2767 | return FALSE; | |
2768 | break; | |
2769 | case BFD_MACH_O_LC_MAIN: | |
2770 | if (!bfd_mach_o_write_main (abfd, cmd)) | |
2771 | return FALSE; | |
2772 | break; | |
2773 | case BFD_MACH_O_LC_DYLD_INFO: | |
2774 | if (!bfd_mach_o_write_dyld_info (abfd, cmd)) | |
2775 | return FALSE; | |
3af9a47b NC |
2776 | break; |
2777 | default: | |
4eca0228 | 2778 | _bfd_error_handler |
d42c267e AM |
2779 | (_("unable to write unknown load command %#x"), |
2780 | cmd->type); | |
b34976b6 | 2781 | return FALSE; |
3af9a47b NC |
2782 | } |
2783 | } | |
2784 | ||
b34976b6 | 2785 | return TRUE; |
3af9a47b NC |
2786 | } |
2787 | ||
f1bde64c TG |
2788 | static void |
2789 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
07d6d2b8 | 2790 | bfd_mach_o_section *s) |
f1bde64c | 2791 | { |
f1bde64c TG |
2792 | if (seg->sect_head == NULL) |
2793 | seg->sect_head = s; | |
2794 | else | |
2795 | seg->sect_tail->next = s; | |
2796 | seg->sect_tail = s; | |
2797 | } | |
2798 | ||
2799 | /* Create section Mach-O flags from BFD flags. */ | |
2800 | ||
2801 | static void | |
3cc27770 TG |
2802 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, |
2803 | asection *sec) | |
f1bde64c TG |
2804 | { |
2805 | flagword bfd_flags; | |
2806 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2807 | ||
2808 | /* Create default flags. */ | |
2809 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
2810 | if ((bfd_flags & SEC_CODE) == SEC_CODE) | |
2811 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2812 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2813 | | BFD_MACH_O_S_REGULAR; | |
2814 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2815 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2816 | else if (bfd_flags & SEC_DEBUGGING) | |
2817 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2818 | else | |
2819 | s->flags = BFD_MACH_O_S_REGULAR; | |
2820 | } | |
2821 | ||
7f307238 | 2822 | static bfd_boolean |
c9ffd2ea | 2823 | bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) |
7f307238 | 2824 | { |
c9ffd2ea TG |
2825 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2826 | unsigned int i, j; | |
7f307238 | 2827 | |
7f307238 | 2828 | seg->vmaddr = 0; |
7f307238 | 2829 | seg->fileoff = mdata->filelen; |
c9ffd2ea TG |
2830 | seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE |
2831 | | BFD_MACH_O_PROT_EXECUTE; | |
2832 | seg->maxprot = seg->initprot; | |
7f307238 | 2833 | |
68ffbac6 | 2834 | /* Append sections to the segment. |
09903f4b IS |
2835 | |
2836 | This is a little tedious, we have to honor the need to account zerofill | |
2837 | sections after all the rest. This forces us to do the calculation of | |
68ffbac6 | 2838 | total vmsize in three passes so that any alignment increments are |
09903f4b | 2839 | properly accounted. */ |
7f307238 IS |
2840 | for (i = 0; i < mdata->nsects; ++i) |
2841 | { | |
2842 | bfd_mach_o_section *s = mdata->sections[i]; | |
2843 | asection *sec = s->bfdsection; | |
2844 | ||
09903f4b IS |
2845 | /* Although we account for zerofill section sizes in vm order, they are |
2846 | placed in the file in source sequence. */ | |
c9ffd2ea | 2847 | bfd_mach_o_append_section_to_segment (seg, s); |
e5081f2f | 2848 | s->offset = 0; |
68ffbac6 | 2849 | |
c9ffd2ea TG |
2850 | /* Zerofill sections have zero file size & offset, the only content |
2851 | written to the file is the symbols. */ | |
e5081f2f | 2852 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL |
07d6d2b8 | 2853 | || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2854 | == BFD_MACH_O_S_GB_ZEROFILL)) |
07d6d2b8 | 2855 | continue; |
e5081f2f | 2856 | |
c9ffd2ea TG |
2857 | /* The Darwin system tools (in MH_OBJECT files, at least) always account |
2858 | sections, even those with zero size. */ | |
e5081f2f | 2859 | if (s->size > 0) |
c9ffd2ea | 2860 | { |
09903f4b IS |
2861 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); |
2862 | seg->vmsize += s->size; | |
2863 | ||
c9ffd2ea TG |
2864 | /* MH_OBJECT files have unaligned content. */ |
2865 | if (1) | |
2866 | { | |
2867 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
07d6d2b8 AM |
2868 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2869 | } | |
09903f4b IS |
2870 | seg->filesize += s->size; |
2871 | ||
c9ffd2ea TG |
2872 | /* The system tools write even zero-sized sections with an offset |
2873 | field set to the current file position. */ | |
07d6d2b8 | 2874 | s->offset = mdata->filelen; |
c9ffd2ea | 2875 | } |
7f307238 IS |
2876 | |
2877 | sec->filepos = s->offset; | |
7f307238 IS |
2878 | mdata->filelen += s->size; |
2879 | } | |
2880 | ||
3cc27770 | 2881 | /* Now pass through again, for zerofill, only now we just update the |
c9ffd2ea TG |
2882 | vmsize, and then for zerofill_GB. */ |
2883 | for (j = 0; j < 2; j++) | |
09903f4b | 2884 | { |
c9ffd2ea | 2885 | unsigned int stype; |
68ffbac6 | 2886 | |
c9ffd2ea TG |
2887 | if (j == 0) |
2888 | stype = BFD_MACH_O_S_ZEROFILL; | |
2889 | else | |
2890 | stype = BFD_MACH_O_S_GB_ZEROFILL; | |
09903f4b | 2891 | |
c9ffd2ea TG |
2892 | for (i = 0; i < mdata->nsects; ++i) |
2893 | { | |
2894 | bfd_mach_o_section *s = mdata->sections[i]; | |
2895 | ||
2896 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype) | |
2897 | continue; | |
2898 | ||
2899 | if (s->size > 0) | |
2900 | { | |
2901 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2902 | seg->vmsize += s->size; | |
2903 | } | |
09903f4b IS |
2904 | } |
2905 | } | |
bb76d940 | 2906 | |
09903f4b | 2907 | /* Allocate space for the relocations. */ |
707e555b | 2908 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); |
bb76d940 IS |
2909 | |
2910 | for (i = 0; i < mdata->nsects; ++i) | |
2911 | { | |
2912 | bfd_mach_o_section *ms = mdata->sections[i]; | |
2913 | asection *sec = ms->bfdsection; | |
68ffbac6 | 2914 | |
c9ffd2ea TG |
2915 | ms->nreloc = sec->reloc_count; |
2916 | if (ms->nreloc == 0) | |
07d6d2b8 | 2917 | { |
c9ffd2ea | 2918 | /* Clear nreloc and reloff if there is no relocs. */ |
bb76d940 IS |
2919 | ms->reloff = 0; |
2920 | continue; | |
07d6d2b8 | 2921 | } |
bb76d940 IS |
2922 | sec->rel_filepos = mdata->filelen; |
2923 | ms->reloff = sec->rel_filepos; | |
2924 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
2925 | } | |
7f307238 IS |
2926 | |
2927 | return TRUE; | |
2928 | } | |
2929 | ||
c9ffd2ea TG |
2930 | static bfd_boolean |
2931 | bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg) | |
50d10658 | 2932 | { |
c9ffd2ea | 2933 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
50d10658 | 2934 | unsigned int i; |
c9ffd2ea TG |
2935 | bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; |
2936 | bfd_vma vma; | |
2937 | bfd_mach_o_section *s; | |
2938 | ||
2939 | seg->vmsize = 0; | |
50d10658 | 2940 | |
c9ffd2ea TG |
2941 | seg->fileoff = mdata->filelen; |
2942 | seg->maxprot = 0; | |
2943 | seg->initprot = 0; | |
2944 | seg->flags = 0; | |
2945 | ||
2946 | /* Append sections to the segment. We assume they are properly ordered | |
2947 | by vma (but we check that). */ | |
2948 | vma = 0; | |
50d10658 IS |
2949 | for (i = 0; i < mdata->nsects; ++i) |
2950 | { | |
c9ffd2ea | 2951 | s = mdata->sections[i]; |
50d10658 | 2952 | |
c9ffd2ea TG |
2953 | /* Consider only sections for this segment. */ |
2954 | if (strcmp (seg->segname, s->segname) != 0) | |
2955 | continue; | |
50d10658 | 2956 | |
c9ffd2ea | 2957 | bfd_mach_o_append_section_to_segment (seg, s); |
7f307238 | 2958 | |
86eafac0 NC |
2959 | if (s->addr < vma) |
2960 | { | |
4eca0228 | 2961 | _bfd_error_handler |
695344c0 | 2962 | /* xgettext:c-format */ |
2dcf00ce AM |
2963 | (_("section address (%#" PRIx64 ") " |
2964 | "below start of segment (%#" PRIx64 ")"), | |
2965 | (uint64_t) s->addr, (uint64_t) vma); | |
86eafac0 NC |
2966 | return FALSE; |
2967 | } | |
2968 | ||
c9ffd2ea | 2969 | vma = s->addr + s->size; |
7f307238 IS |
2970 | } |
2971 | ||
c9ffd2ea TG |
2972 | /* Set segment file offset: make it page aligned. */ |
2973 | vma = seg->sect_head->addr; | |
2974 | seg->vmaddr = vma & ~pagemask; | |
2975 | if ((mdata->filelen & pagemask) > (vma & pagemask)) | |
2976 | mdata->filelen += pagemask + 1; | |
2977 | seg->fileoff = mdata->filelen & ~pagemask; | |
2978 | mdata->filelen = seg->fileoff + (vma & pagemask); | |
7f307238 | 2979 | |
c9ffd2ea TG |
2980 | /* Set section file offset. */ |
2981 | for (s = seg->sect_head; s != NULL; s = s->next) | |
7f307238 | 2982 | { |
c9ffd2ea TG |
2983 | asection *sec = s->bfdsection; |
2984 | flagword flags = bfd_get_section_flags (abfd, sec); | |
b22161d6 | 2985 | |
c9ffd2ea TG |
2986 | /* Adjust segment size. */ |
2987 | seg->vmsize = FILE_ALIGN (seg->vmsize, s->align); | |
2988 | seg->vmsize += s->size; | |
2989 | ||
2990 | /* File offset and length. */ | |
2991 | seg->filesize = FILE_ALIGN (seg->filesize, s->align); | |
2992 | ||
2993 | if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL | |
07d6d2b8 | 2994 | && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
c9ffd2ea | 2995 | != BFD_MACH_O_S_GB_ZEROFILL)) |
b22161d6 | 2996 | { |
c9ffd2ea TG |
2997 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); |
2998 | ||
2999 | s->offset = mdata->filelen; | |
3000 | s->bfdsection->filepos = s->offset; | |
3001 | ||
3002 | seg->filesize += s->size; | |
3003 | mdata->filelen += s->size; | |
b22161d6 | 3004 | } |
c9ffd2ea | 3005 | else |
b22161d6 | 3006 | { |
c9ffd2ea TG |
3007 | s->offset = 0; |
3008 | s->bfdsection->filepos = 0; | |
3009 | } | |
3010 | ||
3011 | /* Set protection. */ | |
3012 | if (flags & SEC_LOAD) | |
3013 | { | |
3014 | if (flags & SEC_CODE) | |
3015 | seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE; | |
3016 | if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA) | |
3017 | seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ; | |
b22161d6 | 3018 | } |
c9ffd2ea TG |
3019 | |
3020 | /* Relocs shouldn't appear in non-object files. */ | |
3021 | if (s->bfdsection->reloc_count != 0) | |
3022 | return FALSE; | |
b22161d6 | 3023 | } |
c9ffd2ea TG |
3024 | |
3025 | /* Set maxprot. */ | |
3026 | if (seg->initprot != 0) | |
3027 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
3028 | | BFD_MACH_O_PROT_EXECUTE; | |
b22161d6 | 3029 | else |
c9ffd2ea | 3030 | seg->maxprot = 0; |
b22161d6 | 3031 | |
c9ffd2ea TG |
3032 | /* Round segment size (and file size). */ |
3033 | seg->vmsize = (seg->vmsize + pagemask) & ~pagemask; | |
3034 | seg->filesize = (seg->filesize + pagemask) & ~pagemask; | |
3035 | mdata->filelen = (mdata->filelen + pagemask) & ~pagemask; | |
7f307238 | 3036 | |
c9ffd2ea TG |
3037 | return TRUE; |
3038 | } | |
68ffbac6 | 3039 | |
c9ffd2ea TG |
3040 | /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds |
3041 | fields in header. */ | |
68ffbac6 | 3042 | |
86eafac0 | 3043 | static bfd_boolean |
c9ffd2ea TG |
3044 | bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata) |
3045 | { | |
3046 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3047 | unsigned int hdrlen; | |
3048 | ufile_ptr offset; | |
3049 | bfd_mach_o_load_command *cmd; | |
3050 | unsigned int align; | |
86eafac0 | 3051 | bfd_boolean ret = TRUE; |
c9ffd2ea TG |
3052 | |
3053 | hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; | |
3054 | align = wide ? 8 - 1 : 4 - 1; | |
3055 | offset = hdrlen; | |
3056 | mdata->header.ncmds = 0; | |
50d10658 | 3057 | |
c9ffd2ea TG |
3058 | for (cmd = mdata->first_command; cmd; cmd = cmd->next) |
3059 | { | |
3060 | mdata->header.ncmds++; | |
3061 | cmd->offset = offset; | |
68ffbac6 | 3062 | |
c9ffd2ea TG |
3063 | switch (cmd->type) |
3064 | { | |
3065 | case BFD_MACH_O_LC_SEGMENT_64: | |
3066 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
3067 | + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects; | |
3068 | break; | |
3069 | case BFD_MACH_O_LC_SEGMENT: | |
3070 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
3071 | + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects; | |
3072 | break; | |
3073 | case BFD_MACH_O_LC_SYMTAB: | |
3074 | cmd->len = sizeof (struct mach_o_symtab_command_external) | |
3075 | + BFD_MACH_O_LC_SIZE; | |
3076 | break; | |
3077 | case BFD_MACH_O_LC_DYSYMTAB: | |
3078 | cmd->len = sizeof (struct mach_o_dysymtab_command_external) | |
3079 | + BFD_MACH_O_LC_SIZE; | |
3080 | break; | |
3081 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
3082 | cmd->len = sizeof (struct mach_o_dylib_command_external) | |
3083 | + BFD_MACH_O_LC_SIZE; | |
3084 | cmd->command.dylib.name_offset = cmd->len; | |
3085 | cmd->len += strlen (cmd->command.dylib.name_str); | |
3086 | cmd->len = (cmd->len + align) & ~align; | |
3087 | break; | |
3088 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
3089 | cmd->len = sizeof (struct mach_o_str_command_external) | |
3090 | + BFD_MACH_O_LC_SIZE; | |
3091 | cmd->command.dylinker.name_offset = cmd->len; | |
3092 | cmd->len += strlen (cmd->command.dylinker.name_str); | |
3093 | cmd->len = (cmd->len + align) & ~align; | |
3094 | break; | |
3095 | case BFD_MACH_O_LC_MAIN: | |
3096 | cmd->len = sizeof (struct mach_o_entry_point_command_external) | |
3097 | + BFD_MACH_O_LC_SIZE; | |
3098 | break; | |
3099 | case BFD_MACH_O_LC_DYLD_INFO: | |
3100 | cmd->len = sizeof (struct mach_o_dyld_info_command_external) | |
3101 | + BFD_MACH_O_LC_SIZE; | |
3102 | break; | |
3103 | default: | |
4eca0228 | 3104 | _bfd_error_handler |
d42c267e AM |
3105 | (_("unable to layout unknown load command %#x"), |
3106 | cmd->type); | |
86eafac0 | 3107 | ret = FALSE; |
c9ffd2ea | 3108 | break; |
7f307238 | 3109 | } |
c9ffd2ea TG |
3110 | |
3111 | BFD_ASSERT (cmd->len % (align + 1) == 0); | |
3112 | offset += cmd->len; | |
7f307238 | 3113 | } |
c9ffd2ea TG |
3114 | mdata->header.sizeofcmds = offset - hdrlen; |
3115 | mdata->filelen = offset; | |
86eafac0 NC |
3116 | |
3117 | return ret; | |
c9ffd2ea | 3118 | } |
7f307238 | 3119 | |
c9ffd2ea TG |
3120 | /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a |
3121 | segment. */ | |
3122 | ||
3123 | static void | |
3124 | bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata, | |
3125 | bfd_mach_o_load_command *cmd, | |
3126 | const char *segname, unsigned int nbr_sect) | |
3127 | { | |
3128 | bfd_mach_o_segment_command *seg = &cmd->command.segment; | |
3129 | unsigned wide = mach_o_wide_p (&mdata->header); | |
3130 | ||
3131 | /* Init segment command. */ | |
3132 | cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT; | |
3133 | cmd->type_required = FALSE; | |
3134 | ||
3135 | strcpy (seg->segname, segname); | |
3136 | seg->nsects = nbr_sect; | |
3137 | ||
3138 | seg->vmaddr = 0; | |
3139 | seg->vmsize = 0; | |
3140 | ||
3141 | seg->fileoff = 0; | |
3142 | seg->filesize = 0; | |
3143 | seg->maxprot = 0; | |
3144 | seg->initprot = 0; | |
3145 | seg->flags = 0; | |
3146 | seg->sect_head = NULL; | |
3147 | seg->sect_tail = NULL; | |
7f307238 IS |
3148 | } |
3149 | ||
3150 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
3151 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
3152 | and copy functionality. */ | |
154a1ee5 TG |
3153 | |
3154 | bfd_boolean | |
3155 | bfd_mach_o_build_commands (bfd *abfd) | |
3156 | { | |
046b007d | 3157 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
bbd56171 | 3158 | unsigned wide = mach_o_wide_p (&mdata->header); |
c9ffd2ea TG |
3159 | unsigned int nbr_segcmd = 0; |
3160 | bfd_mach_o_load_command *commands; | |
3161 | unsigned int nbr_commands; | |
bbd56171 IS |
3162 | int symtab_idx = -1; |
3163 | int dysymtab_idx = -1; | |
c9ffd2ea TG |
3164 | int main_idx = -1; |
3165 | unsigned int i; | |
154a1ee5 | 3166 | |
c9ffd2ea TG |
3167 | /* Return now if already built. */ |
3168 | if (mdata->header.ncmds != 0) | |
3169 | return TRUE; | |
154a1ee5 | 3170 | |
7f307238 | 3171 | /* Fill in the file type, if not already set. */ |
7f307238 | 3172 | if (mdata->header.filetype == 0) |
154a1ee5 | 3173 | { |
7f307238 | 3174 | if (abfd->flags & EXEC_P) |
07d6d2b8 | 3175 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; |
7f307238 | 3176 | else if (abfd->flags & DYNAMIC) |
07d6d2b8 | 3177 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; |
7f307238 | 3178 | else |
07d6d2b8 | 3179 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; |
154a1ee5 | 3180 | } |
7f307238 IS |
3181 | |
3182 | /* If hasn't already been done, flatten sections list, and sort | |
3183 | if/when required. Must be done before the symbol table is adjusted, | |
3184 | since that depends on properly numbered sections. */ | |
3185 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
3186 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
3187 | return FALSE; | |
3188 | ||
3189 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
3190 | partition out any indirect symbols. */ | |
b22161d6 | 3191 | if (!bfd_mach_o_mangle_symbols (abfd)) |
7f307238 IS |
3192 | return FALSE; |
3193 | ||
c9ffd2ea TG |
3194 | /* Segment commands. */ |
3195 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) | |
3196 | { | |
3197 | /* Only one segment for all the sections. But the segment is | |
3198 | optional if there is no sections. */ | |
3199 | nbr_segcmd = (mdata->nsects > 0) ? 1 : 0; | |
3200 | } | |
3201 | else | |
3202 | { | |
3203 | bfd_mach_o_section *prev_sect = NULL; | |
bbd56171 | 3204 | |
c9ffd2ea TG |
3205 | /* One pagezero segment and one linkedit segment. */ |
3206 | nbr_segcmd = 2; | |
bbd56171 | 3207 | |
c9ffd2ea TG |
3208 | /* Create one segment for associated segment name in sections. |
3209 | Assume that sections with the same segment name are consecutive. */ | |
3210 | for (i = 0; i < mdata->nsects; i++) | |
3211 | { | |
3212 | bfd_mach_o_section *this_sect = mdata->sections[i]; | |
bbd56171 | 3213 | |
c9ffd2ea TG |
3214 | if (prev_sect == NULL |
3215 | || strcmp (prev_sect->segname, this_sect->segname) != 0) | |
3216 | { | |
3217 | nbr_segcmd++; | |
3218 | prev_sect = this_sect; | |
3219 | } | |
3220 | } | |
154a1ee5 | 3221 | } |
154a1ee5 | 3222 | |
c9ffd2ea TG |
3223 | nbr_commands = nbr_segcmd; |
3224 | ||
3225 | /* One command for the symbol table (only if there are symbols. */ | |
7f307238 | 3226 | if (bfd_get_symcount (abfd) > 0) |
c9ffd2ea | 3227 | symtab_idx = nbr_commands++; |
c2f09c75 | 3228 | |
bbd56171 IS |
3229 | /* FIXME: |
3230 | This is a rather crude test for whether we should build a dysymtab. */ | |
3231 | if (bfd_mach_o_should_emit_dysymtab () | |
3232 | && bfd_get_symcount (abfd)) | |
3233 | { | |
bbd56171 IS |
3234 | /* If there should be a case where a dysymtab could be emitted without |
3235 | a symtab (seems improbable), this would need amending. */ | |
c9ffd2ea | 3236 | dysymtab_idx = nbr_commands++; |
bbd56171 | 3237 | } |
154a1ee5 | 3238 | |
c9ffd2ea TG |
3239 | /* Add an entry point command. */ |
3240 | if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE | |
3241 | && bfd_get_start_address (abfd) != 0) | |
3242 | main_idx = nbr_commands++; | |
c2f09c75 | 3243 | |
bbd56171 | 3244 | /* Well, we must have a header, at least. */ |
c9ffd2ea | 3245 | mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
f1bde64c | 3246 | |
bbd56171 | 3247 | /* A bit unusual, but no content is valid; |
7f307238 | 3248 | as -n empty.s -o empty.o */ |
c9ffd2ea TG |
3249 | if (nbr_commands == 0) |
3250 | { | |
3251 | /* Layout commands (well none...) and set headers command fields. */ | |
86eafac0 | 3252 | return bfd_mach_o_layout_commands (mdata); |
c9ffd2ea | 3253 | } |
f1bde64c | 3254 | |
c9ffd2ea TG |
3255 | /* Create commands for segments (and symtabs), prepend them. */ |
3256 | commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command)); | |
3257 | if (commands == NULL) | |
7f307238 | 3258 | return FALSE; |
c9ffd2ea TG |
3259 | for (i = 0; i < nbr_commands - 1; i++) |
3260 | commands[i].next = &commands[i + 1]; | |
3261 | commands[nbr_commands - 1].next = mdata->first_command; | |
3262 | if (mdata->first_command == NULL) | |
3263 | mdata->last_command = &commands[nbr_commands - 1]; | |
3264 | mdata->first_command = &commands[0]; | |
3265 | ||
3266 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0) | |
3267 | { | |
3268 | /* For object file, there is only one segment. */ | |
3269 | bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects); | |
3270 | } | |
3271 | else if (nbr_segcmd != 0) | |
68ffbac6 | 3272 | { |
c9ffd2ea | 3273 | bfd_mach_o_load_command *cmd; |
7f307238 | 3274 | |
c9ffd2ea | 3275 | BFD_ASSERT (nbr_segcmd >= 2); |
7f307238 | 3276 | |
c9ffd2ea TG |
3277 | /* The pagezero. */ |
3278 | cmd = &commands[0]; | |
3279 | bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0); | |
3280 | ||
3281 | /* Segments from sections. */ | |
3282 | cmd++; | |
3283 | for (i = 0; i < mdata->nsects;) | |
7f307238 | 3284 | { |
c9ffd2ea TG |
3285 | const char *segname = mdata->sections[i]->segname; |
3286 | unsigned int nbr_sect = 1; | |
3287 | ||
3288 | /* Count number of sections for this segment. */ | |
3289 | for (i++; i < mdata->nsects; i++) | |
3290 | if (strcmp (mdata->sections[i]->segname, segname) == 0) | |
3291 | nbr_sect++; | |
3292 | else | |
3293 | break; | |
3294 | ||
3295 | bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect); | |
3296 | cmd++; | |
7f307238 | 3297 | } |
bbd56171 | 3298 | |
c9ffd2ea TG |
3299 | /* The linkedit. */ |
3300 | bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0); | |
7f307238 | 3301 | } |
f1bde64c | 3302 | |
bbd56171 | 3303 | if (symtab_idx >= 0) |
7f307238 IS |
3304 | { |
3305 | /* Init symtab command. */ | |
c9ffd2ea | 3306 | bfd_mach_o_load_command *cmd = &commands[symtab_idx]; |
68ffbac6 | 3307 | |
bbd56171 | 3308 | cmd->type = BFD_MACH_O_LC_SYMTAB; |
bbd56171 | 3309 | cmd->type_required = FALSE; |
7f307238 | 3310 | } |
154a1ee5 | 3311 | |
bbd56171 IS |
3312 | /* If required, setup symtab command, see comment above about the quality |
3313 | of this test. */ | |
3314 | if (dysymtab_idx >= 0) | |
7f307238 | 3315 | { |
c9ffd2ea | 3316 | bfd_mach_o_load_command *cmd = &commands[dysymtab_idx]; |
bbd56171 | 3317 | |
7f307238 | 3318 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; |
7f307238 | 3319 | cmd->type_required = FALSE; |
c9ffd2ea TG |
3320 | } |
3321 | ||
3322 | /* Create the main command. */ | |
3323 | if (main_idx >= 0) | |
3324 | { | |
3325 | bfd_mach_o_load_command *cmd = &commands[main_idx]; | |
7f307238 | 3326 | |
c9ffd2ea TG |
3327 | cmd->type = BFD_MACH_O_LC_MAIN; |
3328 | cmd->type_required = TRUE; | |
3329 | ||
3330 | cmd->command.main.entryoff = 0; | |
3331 | cmd->command.main.stacksize = 0; | |
154a1ee5 | 3332 | } |
154a1ee5 | 3333 | |
c9ffd2ea | 3334 | /* Layout commands. */ |
86eafac0 NC |
3335 | if (! bfd_mach_o_layout_commands (mdata)) |
3336 | return FALSE; | |
c9ffd2ea | 3337 | |
7f307238 IS |
3338 | /* So, now we have sized the commands and the filelen set to that. |
3339 | Now we can build the segment command and set the section file offsets. */ | |
c9ffd2ea TG |
3340 | if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT) |
3341 | { | |
3342 | for (i = 0; i < nbr_segcmd; i++) | |
3343 | if (!bfd_mach_o_build_obj_seg_command | |
3344 | (abfd, &commands[i].command.segment)) | |
3345 | return FALSE; | |
3346 | } | |
3347 | else | |
3348 | { | |
3349 | bfd_vma maxvma = 0; | |
7f307238 | 3350 | |
c9ffd2ea TG |
3351 | /* Skip pagezero and linkedit segments. */ |
3352 | for (i = 1; i < nbr_segcmd - 1; i++) | |
3353 | { | |
3354 | bfd_mach_o_segment_command *seg = &commands[i].command.segment; | |
3355 | ||
3356 | if (!bfd_mach_o_build_exec_seg_command (abfd, seg)) | |
3357 | return FALSE; | |
3358 | ||
3359 | if (seg->vmaddr + seg->vmsize > maxvma) | |
3360 | maxvma = seg->vmaddr + seg->vmsize; | |
3361 | } | |
3362 | ||
3363 | /* Set the size of __PAGEZERO. */ | |
3364 | commands[0].command.segment.vmsize = | |
3365 | commands[1].command.segment.vmaddr; | |
3366 | ||
3367 | /* Set the vma and fileoff of __LINKEDIT. */ | |
3368 | commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma; | |
3369 | commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen; | |
3370 | ||
3371 | /* Set entry point (once segments have been laid out). */ | |
3372 | if (main_idx >= 0) | |
3373 | commands[main_idx].command.main.entryoff = | |
3374 | bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr; | |
3375 | } | |
7f307238 | 3376 | |
154a1ee5 TG |
3377 | return TRUE; |
3378 | } | |
3379 | ||
3380 | /* Set the contents of a section. */ | |
3381 | ||
3382 | bfd_boolean | |
3383 | bfd_mach_o_set_section_contents (bfd *abfd, | |
3384 | asection *section, | |
3385 | const void * location, | |
3386 | file_ptr offset, | |
3387 | bfd_size_type count) | |
3388 | { | |
3389 | file_ptr pos; | |
3390 | ||
7f307238 IS |
3391 | /* Trying to write the first section contents will trigger the creation of |
3392 | the load commands if they are not already present. */ | |
c9ffd2ea | 3393 | if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd)) |
154a1ee5 TG |
3394 | return FALSE; |
3395 | ||
3396 | if (count == 0) | |
3397 | return TRUE; | |
3398 | ||
3399 | pos = section->filepos + offset; | |
3400 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
3401 | || bfd_bwrite (location, count, abfd) != count) | |
3402 | return FALSE; | |
3403 | ||
3404 | return TRUE; | |
3405 | } | |
3406 | ||
3407 | int | |
116c20d2 | 3408 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 3409 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
3410 | { |
3411 | return 0; | |
3412 | } | |
3413 | ||
3414 | /* Make an empty symbol. This is required only because | |
3415 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
3416 | ||
154a1ee5 | 3417 | asymbol * |
116c20d2 | 3418 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 3419 | { |
d3ce72d0 NC |
3420 | asymbol *new_symbol; |
3421 | ||
3422 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
3423 | if (new_symbol == NULL) | |
3424 | return new_symbol; | |
3425 | new_symbol->the_bfd = abfd; | |
b22161d6 | 3426 | new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET; |
d3ce72d0 | 3427 | return new_symbol; |
3af9a47b NC |
3428 | } |
3429 | ||
154a1ee5 | 3430 | static bfd_boolean |
47daa70f | 3431 | bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header) |
3af9a47b | 3432 | { |
46d1c23b | 3433 | struct mach_o_header_external raw; |
1e8a024a | 3434 | unsigned int size; |
edeb6e24 | 3435 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 3436 | |
1e8a024a | 3437 | /* Just read the magic number. */ |
47daa70f | 3438 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3439 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 3440 | return FALSE; |
3af9a47b | 3441 | |
46d1c23b | 3442 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
3443 | { |
3444 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3445 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 3446 | header->version = 1; |
3af9a47b NC |
3447 | get32 = bfd_getb32; |
3448 | } | |
46d1c23b | 3449 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 3450 | { |
a95a4550 | 3451 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 3452 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
3453 | header->version = 1; |
3454 | get32 = bfd_getl32; | |
3455 | } | |
46d1c23b | 3456 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3457 | { |
3458 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 3459 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
3460 | header->version = 2; |
3461 | get32 = bfd_getb32; | |
3462 | } | |
46d1c23b | 3463 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
3464 | { |
3465 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 3466 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 3467 | header->version = 2; |
3af9a47b NC |
3468 | get32 = bfd_getl32; |
3469 | } | |
3470 | else | |
3471 | { | |
3472 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 3473 | return FALSE; |
3af9a47b | 3474 | } |
a95a4550 | 3475 | |
1e8a024a | 3476 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 3477 | size = mach_o_wide_p (header) ? |
154a1ee5 | 3478 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 3479 | |
47daa70f | 3480 | if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0 |
46d1c23b | 3481 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 3482 | return FALSE; |
1e8a024a | 3483 | |
46d1c23b TG |
3484 | header->cputype = (*get32) (raw.cputype); |
3485 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
3486 | header->filetype = (*get32) (raw.filetype); | |
3487 | header->ncmds = (*get32) (raw.ncmds); | |
3488 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
3489 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 3490 | |
c2f09c75 | 3491 | if (mach_o_wide_p (header)) |
46d1c23b | 3492 | header->reserved = (*get32) (raw.reserved); |
facf03f2 TG |
3493 | else |
3494 | header->reserved = 0; | |
1e8a024a | 3495 | |
154a1ee5 | 3496 | return TRUE; |
3af9a47b NC |
3497 | } |
3498 | ||
f1bde64c TG |
3499 | bfd_boolean |
3500 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
3501 | { | |
3502 | bfd_mach_o_section *s; | |
a4551119 | 3503 | unsigned bfdalign = bfd_get_section_alignment (abfd, sec); |
f1bde64c TG |
3504 | |
3505 | s = bfd_mach_o_get_mach_o_section (sec); | |
3506 | if (s == NULL) | |
3507 | { | |
3508 | flagword bfd_flags; | |
a4551119 | 3509 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
3510 | |
3511 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
3512 | if (s == NULL) | |
3513 | return FALSE; | |
3514 | sec->used_by_bfd = s; | |
3515 | s->bfdsection = sec; | |
3516 | ||
a4551119 TG |
3517 | /* Create the Darwin seg/sect name pair from the bfd name. |
3518 | If this is a canonical name for which a specific paiting exists | |
3519 | there will also be defined flags, type, attribute and alignment | |
3520 | values. */ | |
3521 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
3522 | if (xlat != NULL) | |
3523 | { | |
3524 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
68ffbac6 | 3525 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign |
a4551119 | 3526 | : bfdalign; |
a253d456 | 3527 | (void) bfd_set_section_alignment (abfd, sec, s->align); |
a4551119 TG |
3528 | bfd_flags = bfd_get_section_flags (abfd, sec); |
3529 | if (bfd_flags == SEC_NO_FLAGS) | |
3530 | bfd_set_section_flags (abfd, sec, xlat->bfd_flags); | |
3531 | } | |
f1bde64c | 3532 | else |
a4551119 TG |
3533 | /* Create default flags. */ |
3534 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
3535 | } |
3536 | ||
3537 | return _bfd_generic_new_section_hook (abfd, sec); | |
3538 | } | |
3539 | ||
3540 | static void | |
3541 | bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec, | |
07d6d2b8 | 3542 | unsigned long prot) |
3af9a47b | 3543 | { |
117ed4f8 | 3544 | flagword flags; |
f1bde64c | 3545 | bfd_mach_o_section *section; |
3af9a47b | 3546 | |
f1bde64c TG |
3547 | flags = bfd_get_section_flags (abfd, sec); |
3548 | section = bfd_mach_o_get_mach_o_section (sec); | |
3af9a47b | 3549 | |
a4551119 TG |
3550 | /* TODO: see if we should use the xlat system for doing this by |
3551 | preference and fall back to this for unknown sections. */ | |
3552 | ||
8462aec7 | 3553 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 3554 | { |
8462aec7 TG |
3555 | /* Try to guess flags. */ |
3556 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
07d6d2b8 | 3557 | flags = SEC_DEBUGGING; |
8462aec7 | 3558 | else |
07d6d2b8 AM |
3559 | { |
3560 | flags = SEC_ALLOC; | |
3561 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
3562 | != BFD_MACH_O_S_ZEROFILL) | |
3563 | { | |
3564 | flags |= SEC_LOAD; | |
3565 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
3566 | flags |= SEC_CODE; | |
3567 | if (prot & BFD_MACH_O_PROT_WRITE) | |
3568 | flags |= SEC_DATA; | |
3569 | else if (prot & BFD_MACH_O_PROT_READ) | |
3570 | flags |= SEC_READONLY; | |
3571 | } | |
3572 | } | |
ef17cb22 | 3573 | } |
15e1c58a TG |
3574 | else |
3575 | { | |
8462aec7 | 3576 | if ((flags & SEC_DEBUGGING) == 0) |
07d6d2b8 | 3577 | flags |= SEC_ALLOC; |
15e1c58a | 3578 | } |
8462aec7 TG |
3579 | |
3580 | if (section->offset != 0) | |
3581 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
3582 | if (section->nreloc != 0) |
3583 | flags |= SEC_RELOC; | |
3584 | ||
f1bde64c TG |
3585 | bfd_set_section_flags (abfd, sec, flags); |
3586 | ||
3587 | sec->vma = section->addr; | |
3588 | sec->lma = section->addr; | |
3589 | sec->size = section->size; | |
3590 | sec->filepos = section->offset; | |
3591 | sec->alignment_power = section->align; | |
3592 | sec->segment_mark = 0; | |
3593 | sec->reloc_count = section->nreloc; | |
3594 | sec->rel_filepos = section->reloff; | |
3595 | } | |
3596 | ||
3597 | static asection * | |
3598 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
07d6d2b8 AM |
3599 | const unsigned char *segname, |
3600 | const unsigned char *sectname) | |
f1bde64c TG |
3601 | { |
3602 | const char *sname; | |
3603 | flagword flags; | |
a95a4550 | 3604 | |
f1bde64c TG |
3605 | bfd_mach_o_convert_section_name_to_bfd |
3606 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
3607 | if (sname == NULL) | |
3608 | return NULL; | |
3af9a47b | 3609 | |
f1bde64c | 3610 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
3611 | } |
3612 | ||
f1bde64c | 3613 | static asection * |
47daa70f | 3614 | bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot) |
3af9a47b | 3615 | { |
46d1c23b | 3616 | struct mach_o_section_32_external raw; |
f1bde64c TG |
3617 | asection *sec; |
3618 | bfd_mach_o_section *section; | |
3af9a47b | 3619 | |
47daa70f TG |
3620 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
3621 | != BFD_MACH_O_SECTION_SIZE) | |
f1bde64c | 3622 | return NULL; |
a95a4550 | 3623 | |
5a5cbf72 | 3624 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3625 | if (sec == NULL) |
3626 | return NULL; | |
3627 | ||
3628 | section = bfd_mach_o_get_mach_o_section (sec); | |
3629 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3630 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3631 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3632 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3633 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
3634 | section->size = bfd_h_get_32 (abfd, raw.size); | |
3635 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3636 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3637 | /* PR 17512: file: 0017eb76. */ |
3638 | if (section->align > 64) | |
3639 | { | |
4eca0228 | 3640 | _bfd_error_handler |
d42c267e | 3641 | (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, " |
4eca0228 | 3642 | "using 32 instead"), section->align); |
c86934ce NC |
3643 | section->align = 32; |
3644 | } | |
46d1c23b TG |
3645 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3646 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3647 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3648 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3649 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 3650 | section->reserved3 = 0; |
1e8a024a | 3651 | |
f1bde64c | 3652 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
1e8a024a | 3653 | |
f1bde64c | 3654 | return sec; |
1e8a024a TG |
3655 | } |
3656 | ||
f1bde64c | 3657 | static asection * |
47daa70f | 3658 | bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot) |
1e8a024a | 3659 | { |
46d1c23b | 3660 | struct mach_o_section_64_external raw; |
f1bde64c TG |
3661 | asection *sec; |
3662 | bfd_mach_o_section *section; | |
1e8a024a | 3663 | |
47daa70f TG |
3664 | if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
3665 | != BFD_MACH_O_SECTION_64_SIZE) | |
f1bde64c TG |
3666 | return NULL; |
3667 | ||
5a5cbf72 | 3668 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
3669 | if (sec == NULL) |
3670 | return NULL; | |
1e8a024a | 3671 | |
f1bde64c TG |
3672 | section = bfd_mach_o_get_mach_o_section (sec); |
3673 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
3674 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
3675 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 3676 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
3677 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
3678 | section->size = bfd_h_get_64 (abfd, raw.size); | |
3679 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
3680 | section->align = bfd_h_get_32 (abfd, raw.align); | |
c86934ce NC |
3681 | if (section->align > 64) |
3682 | { | |
4eca0228 | 3683 | _bfd_error_handler |
d42c267e | 3684 | (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, " |
4eca0228 | 3685 | "using 32 instead"), section->align); |
c86934ce NC |
3686 | section->align = 32; |
3687 | } | |
46d1c23b TG |
3688 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); |
3689 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
3690 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
3691 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
3692 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
3693 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 3694 | |
f1bde64c | 3695 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
3af9a47b | 3696 | |
f1bde64c | 3697 | return sec; |
3af9a47b NC |
3698 | } |
3699 | ||
f1bde64c | 3700 | static asection * |
47daa70f | 3701 | bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide) |
1e8a024a TG |
3702 | { |
3703 | if (wide) | |
47daa70f | 3704 | return bfd_mach_o_read_section_64 (abfd, prot); |
1e8a024a | 3705 | else |
47daa70f | 3706 | return bfd_mach_o_read_section_32 (abfd, prot); |
1e8a024a TG |
3707 | } |
3708 | ||
afbb9e17 | 3709 | static bfd_boolean |
ab273af8 | 3710 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
07d6d2b8 AM |
3711 | bfd_mach_o_symtab_command *sym, |
3712 | bfd_mach_o_asymbol *s, | |
3713 | unsigned long i) | |
3af9a47b | 3714 | { |
046b007d | 3715 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 3716 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
3717 | unsigned int symwidth = |
3718 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 3719 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 3720 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
3721 | unsigned char type = -1; |
3722 | unsigned char section = -1; | |
3723 | short desc = -1; | |
1e8a024a | 3724 | symvalue value = -1; |
3af9a47b NC |
3725 | unsigned long stroff = -1; |
3726 | unsigned int symtype = -1; | |
3727 | ||
3728 | BFD_ASSERT (sym->strtab != NULL); | |
3729 | ||
c2f09c75 | 3730 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 3731 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 3732 | { |
4eca0228 | 3733 | _bfd_error_handler |
695344c0 | 3734 | /* xgettext:c-format */ |
07d6d2b8 AM |
3735 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"), |
3736 | symwidth, symoff); | |
afbb9e17 | 3737 | return FALSE; |
3af9a47b NC |
3738 | } |
3739 | ||
46d1c23b TG |
3740 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
3741 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 3742 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
3743 | section = bfd_h_get_8 (abfd, raw.n_sect); |
3744 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 3745 | if (wide) |
46d1c23b | 3746 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 3747 | else |
46d1c23b | 3748 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
3749 | |
3750 | if (stroff >= sym->strsize) | |
3751 | { | |
4eca0228 | 3752 | _bfd_error_handler |
695344c0 | 3753 | /* xgettext:c-format */ |
07d6d2b8 AM |
3754 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"), |
3755 | stroff, | |
3756 | sym->strsize); | |
afbb9e17 | 3757 | return FALSE; |
3af9a47b NC |
3758 | } |
3759 | ||
92bc0e80 TG |
3760 | s->symbol.the_bfd = abfd; |
3761 | s->symbol.name = sym->strtab + stroff; | |
3762 | s->symbol.value = value; | |
3763 | s->symbol.flags = 0x0; | |
b22161d6 | 3764 | s->symbol.udata.i = i; |
92bc0e80 TG |
3765 | s->n_type = type; |
3766 | s->n_sect = section; | |
3767 | s->n_desc = desc; | |
3af9a47b NC |
3768 | |
3769 | if (type & BFD_MACH_O_N_STAB) | |
3770 | { | |
92bc0e80 TG |
3771 | s->symbol.flags |= BSF_DEBUGGING; |
3772 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
3773 | switch (type) |
3774 | { | |
3775 | case N_FUN: | |
3776 | case N_STSYM: | |
3777 | case N_LCSYM: | |
3778 | case N_BNSYM: | |
3779 | case N_SLINE: | |
3780 | case N_ENSYM: | |
3781 | case N_ECOMM: | |
3782 | case N_ECOML: | |
3783 | case N_GSYM: | |
3784 | if ((section > 0) && (section <= mdata->nsects)) | |
3785 | { | |
92bc0e80 TG |
3786 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3787 | s->symbol.value = | |
07d6d2b8 | 3788 | s->symbol.value - mdata->sections[section - 1]->addr; |
15e1c58a TG |
3789 | } |
3790 | break; | |
3791 | } | |
3af9a47b NC |
3792 | } |
3793 | else | |
3794 | { | |
b22161d6 | 3795 | if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)) |
92bc0e80 | 3796 | s->symbol.flags |= BSF_GLOBAL; |
b22161d6 | 3797 | else |
92bc0e80 | 3798 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
3799 | |
3800 | switch (symtype) | |
3801 | { | |
3802 | case BFD_MACH_O_N_UNDF: | |
07d6d2b8 AM |
3803 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
3804 | && s->symbol.value != 0) | |
3805 | { | |
3806 | /* A common symbol. */ | |
3807 | s->symbol.section = bfd_com_section_ptr; | |
3808 | s->symbol.flags = BSF_NO_FLAGS; | |
3809 | } | |
3810 | else | |
3811 | { | |
3812 | s->symbol.section = bfd_und_section_ptr; | |
3813 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
3814 | s->symbol.flags |= BSF_WEAK; | |
3815 | } | |
3af9a47b NC |
3816 | break; |
3817 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 3818 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3819 | break; |
3820 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 3821 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
3822 | break; |
3823 | case BFD_MACH_O_N_SECT: | |
3824 | if ((section > 0) && (section <= mdata->nsects)) | |
3825 | { | |
92bc0e80 TG |
3826 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
3827 | s->symbol.value = | |
07d6d2b8 | 3828 | s->symbol.value - mdata->sections[section - 1]->addr; |
3af9a47b NC |
3829 | } |
3830 | else | |
3831 | { | |
3832 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
3833 | if (section != 0) | |
3834 | { | |
4eca0228 | 3835 | _bfd_error_handler |
695344c0 | 3836 | /* xgettext:c-format */ |
4eca0228 AM |
3837 | (_("bfd_mach_o_read_symtab_symbol: " |
3838 | "symbol \"%s\" specified invalid section %d (max %lu): " | |
3839 | "setting to undefined"), | |
3840 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 3841 | } |
92bc0e80 | 3842 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3843 | } |
3844 | break; | |
3845 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
3846 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
3847 | won't be followed by the referenced one. This looks harmless | |
3848 | unless we start using the linker. */ | |
3849 | s->symbol.flags |= BSF_INDIRECT; | |
3850 | s->symbol.section = bfd_ind_section_ptr; | |
3851 | s->symbol.value = 0; | |
3af9a47b NC |
3852 | break; |
3853 | default: | |
4eca0228 | 3854 | _bfd_error_handler |
695344c0 | 3855 | /* xgettext:c-format */ |
4eca0228 AM |
3856 | (_("bfd_mach_o_read_symtab_symbol: " |
3857 | "symbol \"%s\" specified invalid type field 0x%x: " | |
3858 | "setting to undefined"), s->symbol.name, symtype); | |
92bc0e80 | 3859 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
3860 | break; |
3861 | } | |
3862 | } | |
3863 | ||
afbb9e17 | 3864 | return TRUE; |
3af9a47b NC |
3865 | } |
3866 | ||
c5012cd8 | 3867 | bfd_boolean |
ab273af8 | 3868 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 3869 | { |
046b007d TG |
3870 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3871 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3872 | ||
3873 | /* Fail if there is no symtab. */ | |
3874 | if (sym == NULL) | |
afbb9e17 | 3875 | return FALSE; |
046b007d TG |
3876 | |
3877 | /* Success if already loaded. */ | |
3878 | if (sym->strtab) | |
afbb9e17 | 3879 | return TRUE; |
3af9a47b NC |
3880 | |
3881 | if (abfd->flags & BFD_IN_MEMORY) | |
3882 | { | |
3883 | struct bfd_in_memory *b; | |
3884 | ||
3885 | b = (struct bfd_in_memory *) abfd->iostream; | |
3886 | ||
3887 | if ((sym->stroff + sym->strsize) > b->size) | |
3888 | { | |
3889 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 3890 | return FALSE; |
3af9a47b | 3891 | } |
f075ee0c | 3892 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 3893 | } |
046b007d | 3894 | else |
3af9a47b | 3895 | { |
8bdf0be1 NC |
3896 | /* See PR 21840 for a reproducer. */ |
3897 | if ((sym->strsize + 1) == 0) | |
3898 | return FALSE; | |
e7287c7f | 3899 | sym->strtab = bfd_alloc (abfd, sym->strsize + 1); |
046b007d | 3900 | if (sym->strtab == NULL) |
07d6d2b8 | 3901 | return FALSE; |
046b007d TG |
3902 | |
3903 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 | |
07d6d2b8 AM |
3904 | || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize) |
3905 | { | |
a1165289 NC |
3906 | /* PR 17512: file: 10888-1609-0.004. */ |
3907 | bfd_release (abfd, sym->strtab); | |
3908 | sym->strtab = NULL; | |
07d6d2b8 AM |
3909 | bfd_set_error (bfd_error_file_truncated); |
3910 | return FALSE; | |
3911 | } | |
e7287c7f NC |
3912 | /* Zero terminate the string table. */ |
3913 | sym->strtab[sym->strsize] = 0; | |
3af9a47b NC |
3914 | } |
3915 | ||
afbb9e17 | 3916 | return TRUE; |
3af9a47b NC |
3917 | } |
3918 | ||
c5012cd8 | 3919 | bfd_boolean |
ab273af8 | 3920 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 3921 | { |
046b007d TG |
3922 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3923 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 3924 | unsigned long i; |
3af9a47b | 3925 | |
092d27ff | 3926 | if (sym == NULL || sym->symbols) |
0a9d414a NC |
3927 | /* Return now if there are no symbols or if already loaded. */ |
3928 | return TRUE; | |
046b007d | 3929 | |
64d29018 | 3930 | sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol)); |
3af9a47b NC |
3931 | if (sym->symbols == NULL) |
3932 | { | |
4eca0228 AM |
3933 | _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: " |
3934 | "unable to allocate memory for symbols")); | |
64d29018 | 3935 | sym->nsyms = 0; |
afbb9e17 | 3936 | return FALSE; |
3af9a47b | 3937 | } |
a95a4550 | 3938 | |
afbb9e17 | 3939 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
64d29018 | 3940 | goto fail; |
3af9a47b NC |
3941 | |
3942 | for (i = 0; i < sym->nsyms; i++) | |
64d29018 NC |
3943 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
3944 | goto fail; | |
a95a4550 | 3945 | |
afbb9e17 | 3946 | return TRUE; |
64d29018 NC |
3947 | |
3948 | fail: | |
3949 | bfd_release (abfd, sym->symbols); | |
3950 | sym->symbols = NULL; | |
3951 | sym->nsyms = 0; | |
3952 | return FALSE; | |
3af9a47b NC |
3953 | } |
3954 | ||
3955 | static const char * | |
116c20d2 | 3956 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
3957 | { |
3958 | switch ((int) flavour) | |
3959 | { | |
15e1c58a TG |
3960 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
3961 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
3962 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
3963 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
3964 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
3965 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
3966 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
3967 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
3968 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
3969 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
3970 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
3971 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 3972 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
3973 | default: return "UNKNOWN"; |
3974 | } | |
3975 | } | |
3976 | ||
3977 | static const char * | |
116c20d2 | 3978 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
3979 | { |
3980 | switch ((int) flavour) | |
3981 | { | |
b32e07d7 TG |
3982 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
3983 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
3984 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
3985 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
3986 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
3987 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
3988 | default: return "UNKNOWN"; |
3989 | } | |
3990 | } | |
3991 | ||
452216ab | 3992 | static bfd_boolean |
ab273af8 | 3993 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
3994 | { |
3995 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 3996 | struct mach_o_str_command_external raw; |
3af9a47b | 3997 | unsigned int nameoff; |
4525c51a | 3998 | unsigned int namelen; |
3af9a47b | 3999 | |
47daa70f | 4000 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4001 | return FALSE; |
3af9a47b | 4002 | |
46d1c23b | 4003 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3af9a47b | 4004 | |
4525c51a TG |
4005 | cmd->name_offset = nameoff; |
4006 | namelen = command->len - nameoff; | |
4007 | nameoff += command->offset; | |
4008 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 4009 | if (cmd->name_str == NULL) |
452216ab | 4010 | return FALSE; |
4525c51a TG |
4011 | if (bfd_seek (abfd, nameoff, SEEK_SET) != 0 |
4012 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) | |
452216ab TG |
4013 | return FALSE; |
4014 | return TRUE; | |
3af9a47b NC |
4015 | } |
4016 | ||
452216ab | 4017 | static bfd_boolean |
ab273af8 | 4018 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4019 | { |
47daa70f | 4020 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4021 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
46d1c23b | 4022 | struct mach_o_dylib_command_external raw; |
3af9a47b | 4023 | unsigned int nameoff; |
4525c51a | 4024 | unsigned int namelen; |
3af9a47b | 4025 | |
046b007d TG |
4026 | switch (command->type) |
4027 | { | |
4028 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4029 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
046b007d | 4030 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 4031 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 4032 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4033 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
4034 | break; |
4035 | default: | |
b32e07d7 | 4036 | BFD_FAIL (); |
452216ab | 4037 | return FALSE; |
046b007d | 4038 | } |
3af9a47b | 4039 | |
47daa70f | 4040 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4041 | return FALSE; |
3af9a47b | 4042 | |
46d1c23b TG |
4043 | nameoff = bfd_h_get_32 (abfd, raw.name); |
4044 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); | |
4045 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
4046 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
4047 | |
4048 | cmd->name_offset = command->offset + nameoff; | |
4525c51a TG |
4049 | namelen = command->len - nameoff; |
4050 | cmd->name_str = bfd_alloc (abfd, namelen); | |
b32e07d7 | 4051 | if (cmd->name_str == NULL) |
452216ab | 4052 | return FALSE; |
47daa70f | 4053 | if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0 |
4525c51a | 4054 | || bfd_bread (cmd->name_str, namelen, abfd) != namelen) |
452216ab TG |
4055 | return FALSE; |
4056 | return TRUE; | |
3af9a47b NC |
4057 | } |
4058 | ||
452216ab | 4059 | static bfd_boolean |
7a79c514 | 4060 | bfd_mach_o_read_prebound_dylib (bfd *abfd, |
07d6d2b8 | 4061 | bfd_mach_o_load_command *command) |
3af9a47b | 4062 | { |
7a79c514 TG |
4063 | bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; |
4064 | struct mach_o_prebound_dylib_command_external raw; | |
4065 | unsigned int nameoff; | |
4066 | unsigned int modoff; | |
4067 | unsigned int str_len; | |
4068 | unsigned char *str; | |
4069 | ||
47daa70f | 4070 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4071 | return FALSE; |
7a79c514 TG |
4072 | |
4073 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
4074 | modoff = bfd_h_get_32 (abfd, raw.linked_modules); | |
4075 | if (nameoff > command->len || modoff > command->len) | |
452216ab | 4076 | return FALSE; |
7a79c514 TG |
4077 | |
4078 | str_len = command->len - sizeof (raw); | |
4079 | str = bfd_alloc (abfd, str_len); | |
4080 | if (str == NULL) | |
452216ab | 4081 | return FALSE; |
7a79c514 | 4082 | if (bfd_bread (str, str_len, abfd) != str_len) |
452216ab | 4083 | return FALSE; |
7a79c514 TG |
4084 | |
4085 | cmd->name_offset = command->offset + nameoff; | |
4086 | cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules); | |
4087 | cmd->linked_modules_offset = command->offset + modoff; | |
4088 | ||
4089 | cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
4090 | cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE); | |
452216ab | 4091 | return TRUE; |
7a79c514 TG |
4092 | } |
4093 | ||
452216ab | 4094 | static bfd_boolean |
7a79c514 TG |
4095 | bfd_mach_o_read_prebind_cksum (bfd *abfd, |
4096 | bfd_mach_o_load_command *command) | |
4097 | { | |
4098 | bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum; | |
4099 | struct mach_o_prebind_cksum_command_external raw; | |
3af9a47b | 4100 | |
47daa70f | 4101 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4102 | return FALSE; |
7a79c514 TG |
4103 | |
4104 | cmd->cksum = bfd_get_32 (abfd, raw.cksum); | |
452216ab | 4105 | return TRUE; |
7a79c514 TG |
4106 | } |
4107 | ||
452216ab | 4108 | static bfd_boolean |
7a79c514 TG |
4109 | bfd_mach_o_read_twolevel_hints (bfd *abfd, |
4110 | bfd_mach_o_load_command *command) | |
4111 | { | |
4112 | bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints; | |
4113 | struct mach_o_twolevel_hints_command_external raw; | |
4114 | ||
47daa70f | 4115 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4116 | return FALSE; |
7a79c514 TG |
4117 | |
4118 | cmd->offset = bfd_get_32 (abfd, raw.offset); | |
4119 | cmd->nhints = bfd_get_32 (abfd, raw.nhints); | |
452216ab | 4120 | return TRUE; |
3af9a47b NC |
4121 | } |
4122 | ||
452216ab | 4123 | static bfd_boolean |
9f4a5bd1 TG |
4124 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) |
4125 | { | |
4126 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
4127 | struct mach_o_fvmlib_command_external raw; | |
4128 | unsigned int nameoff; | |
4525c51a | 4129 | unsigned int namelen; |
9f4a5bd1 | 4130 | |
47daa70f | 4131 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4132 | return FALSE; |
9f4a5bd1 TG |
4133 | |
4134 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
4135 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); | |
4136 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
4137 | ||
4138 | fvm->name_offset = command->offset + nameoff; | |
4525c51a TG |
4139 | namelen = command->len - nameoff; |
4140 | fvm->name_str = bfd_alloc (abfd, namelen); | |
9f4a5bd1 | 4141 | if (fvm->name_str == NULL) |
452216ab | 4142 | return FALSE; |
9f4a5bd1 | 4143 | if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0 |
4525c51a | 4144 | || bfd_bread (fvm->name_str, namelen, abfd) != namelen) |
452216ab TG |
4145 | return FALSE; |
4146 | return TRUE; | |
9f4a5bd1 TG |
4147 | } |
4148 | ||
452216ab | 4149 | static bfd_boolean |
ab273af8 | 4150 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4151 | { |
b32e07d7 | 4152 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 4153 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 4154 | unsigned int offset; |
3af9a47b NC |
4155 | unsigned int nflavours; |
4156 | unsigned int i; | |
4157 | ||
4158 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
4159 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
4160 | ||
b32e07d7 | 4161 | /* Count the number of threads. */ |
3af9a47b NC |
4162 | offset = 8; |
4163 | nflavours = 0; | |
4164 | while (offset != command->len) | |
4165 | { | |
46d1c23b TG |
4166 | struct mach_o_thread_command_external raw; |
4167 | ||
3af9a47b | 4168 | if (offset >= command->len) |
452216ab | 4169 | return FALSE; |
3af9a47b | 4170 | |
c2f09c75 | 4171 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4172 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4173 | return FALSE; |
3af9a47b | 4174 | |
46d1c23b | 4175 | offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4; |
3af9a47b NC |
4176 | nflavours++; |
4177 | } | |
4178 | ||
b32e07d7 | 4179 | /* Allocate threads. */ |
64d29018 NC |
4180 | cmd->flavours = bfd_alloc2 |
4181 | (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour)); | |
3af9a47b | 4182 | if (cmd->flavours == NULL) |
452216ab | 4183 | return FALSE; |
3af9a47b NC |
4184 | cmd->nflavours = nflavours; |
4185 | ||
4186 | offset = 8; | |
4187 | nflavours = 0; | |
4188 | while (offset != command->len) | |
4189 | { | |
46d1c23b TG |
4190 | struct mach_o_thread_command_external raw; |
4191 | ||
3af9a47b | 4192 | if (offset >= command->len) |
452216ab | 4193 | return FALSE; |
3af9a47b NC |
4194 | |
4195 | if (nflavours >= cmd->nflavours) | |
452216ab | 4196 | return FALSE; |
3af9a47b | 4197 | |
c2f09c75 | 4198 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
07d6d2b8 | 4199 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4200 | return FALSE; |
3af9a47b | 4201 | |
46d1c23b TG |
4202 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
4203 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
4204 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
4205 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
4206 | nflavours++; |
4207 | } | |
4208 | ||
4209 | for (i = 0; i < nflavours; i++) | |
4210 | { | |
4211 | asection *bfdsec; | |
4212 | unsigned int snamelen; | |
4213 | char *sname; | |
4214 | const char *flavourstr; | |
4215 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
4216 | unsigned int j = 0; |
4217 | ||
3af9a47b NC |
4218 | switch (mdata->header.cputype) |
4219 | { | |
4220 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 4221 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
707e555b TG |
4222 | flavourstr = |
4223 | bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4224 | break; |
4225 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 4226 | case BFD_MACH_O_CPU_TYPE_X86_64: |
707e555b TG |
4227 | flavourstr = |
4228 | bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
3af9a47b NC |
4229 | break; |
4230 | default: | |
4231 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
4232 | break; | |
4233 | } | |
a95a4550 | 4234 | |
3af9a47b | 4235 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 4236 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b | 4237 | if (sname == NULL) |
452216ab | 4238 | return FALSE; |
3af9a47b NC |
4239 | |
4240 | for (;;) | |
4241 | { | |
a95a4550 AM |
4242 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
4243 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 4244 | break; |
a95a4550 | 4245 | j++; |
3af9a47b NC |
4246 | } |
4247 | ||
117ed4f8 | 4248 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 4249 | |
3af9a47b NC |
4250 | bfdsec->vma = 0; |
4251 | bfdsec->lma = 0; | |
eea6121a | 4252 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
4253 | bfdsec->filepos = cmd->flavours[i].offset; |
4254 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
4255 | |
4256 | cmd->section = bfdsec; | |
4257 | } | |
4258 | ||
452216ab | 4259 | return TRUE; |
3af9a47b NC |
4260 | } |
4261 | ||
452216ab | 4262 | static bfd_boolean |
ab273af8 | 4263 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4264 | { |
046b007d | 4265 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 4266 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4267 | |
4268 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
4269 | ||
46d1c23b TG |
4270 | { |
4271 | struct mach_o_dysymtab_command_external raw; | |
4272 | ||
47daa70f | 4273 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4274 | return FALSE; |
3af9a47b | 4275 | |
46d1c23b TG |
4276 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
4277 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
4278 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
4279 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
4280 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
4281 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
4282 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
4283 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
4284 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
4285 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
4286 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
4287 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
4288 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
4289 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
4290 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
4291 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
4292 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
4293 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
4294 | } | |
046b007d TG |
4295 | |
4296 | if (cmd->nmodtab != 0) | |
4297 | { | |
046b007d TG |
4298 | unsigned int i; |
4299 | int wide = bfd_mach_o_wide_p (abfd); | |
4300 | unsigned int module_len = wide ? 56 : 52; | |
4301 | ||
4302 | cmd->dylib_module = | |
07d6d2b8 | 4303 | bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module)); |
046b007d | 4304 | if (cmd->dylib_module == NULL) |
07d6d2b8 | 4305 | return FALSE; |
046b007d TG |
4306 | |
4307 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
07d6d2b8 | 4308 | return FALSE; |
046b007d TG |
4309 | |
4310 | for (i = 0; i < cmd->nmodtab; i++) | |
07d6d2b8 AM |
4311 | { |
4312 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
4313 | unsigned long v; | |
4314 | unsigned char buf[56]; | |
4315 | ||
4316 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) | |
4317 | return FALSE; | |
4318 | ||
4319 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
4320 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
4321 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
4322 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
4323 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
4324 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
4325 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
4326 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
4327 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
4328 | v = bfd_h_get_32 (abfd, buf +36); | |
4329 | module->iinit = v & 0xffff; | |
4330 | module->iterm = (v >> 16) & 0xffff; | |
4331 | v = bfd_h_get_32 (abfd, buf + 40); | |
4332 | module->ninit = v & 0xffff; | |
4333 | module->nterm = (v >> 16) & 0xffff; | |
4334 | if (wide) | |
4335 | { | |
4336 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
4337 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
4338 | } | |
4339 | else | |
4340 | { | |
4341 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
4342 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
4343 | } | |
4344 | } | |
046b007d | 4345 | } |
afbb9e17 | 4346 | |
046b007d TG |
4347 | if (cmd->ntoc != 0) |
4348 | { | |
64d29018 | 4349 | unsigned long i; |
046b007d | 4350 | |
64d29018 | 4351 | cmd->dylib_toc = bfd_alloc2 |
07d6d2b8 | 4352 | (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content)); |
046b007d | 4353 | if (cmd->dylib_toc == NULL) |
07d6d2b8 | 4354 | return FALSE; |
046b007d TG |
4355 | |
4356 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
07d6d2b8 | 4357 | return FALSE; |
046b007d TG |
4358 | |
4359 | for (i = 0; i < cmd->ntoc; i++) | |
07d6d2b8 AM |
4360 | { |
4361 | struct mach_o_dylib_table_of_contents_external raw; | |
4362 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
046b007d | 4363 | |
07d6d2b8 AM |
4364 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4365 | return FALSE; | |
046b007d | 4366 | |
07d6d2b8 AM |
4367 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
4368 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
4369 | } | |
046b007d TG |
4370 | } |
4371 | ||
4372 | if (cmd->nindirectsyms != 0) | |
4373 | { | |
046b007d TG |
4374 | unsigned int i; |
4375 | ||
64d29018 | 4376 | cmd->indirect_syms = bfd_alloc2 |
07d6d2b8 | 4377 | (abfd, cmd->nindirectsyms, sizeof (unsigned int)); |
046b007d | 4378 | if (cmd->indirect_syms == NULL) |
07d6d2b8 | 4379 | return FALSE; |
046b007d TG |
4380 | |
4381 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4382 | return FALSE; |
046b007d TG |
4383 | |
4384 | for (i = 0; i < cmd->nindirectsyms; i++) | |
07d6d2b8 AM |
4385 | { |
4386 | unsigned char raw[4]; | |
4387 | unsigned int *is = &cmd->indirect_syms[i]; | |
046b007d | 4388 | |
07d6d2b8 AM |
4389 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
4390 | return FALSE; | |
046b007d | 4391 | |
07d6d2b8 AM |
4392 | *is = bfd_h_get_32 (abfd, raw); |
4393 | } | |
046b007d TG |
4394 | } |
4395 | ||
4396 | if (cmd->nextrefsyms != 0) | |
4397 | { | |
046b007d TG |
4398 | unsigned long v; |
4399 | unsigned int i; | |
4400 | ||
64d29018 | 4401 | cmd->ext_refs = bfd_alloc2 |
07d6d2b8 | 4402 | (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference)); |
046b007d | 4403 | if (cmd->ext_refs == NULL) |
07d6d2b8 | 4404 | return FALSE; |
046b007d TG |
4405 | |
4406 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
07d6d2b8 | 4407 | return FALSE; |
046b007d TG |
4408 | |
4409 | for (i = 0; i < cmd->nextrefsyms; i++) | |
07d6d2b8 AM |
4410 | { |
4411 | unsigned char raw[4]; | |
4412 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
4413 | ||
4414 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) | |
4415 | return FALSE; | |
4416 | ||
4417 | /* Fields isym and flags are written as bit-fields, thus we need | |
4418 | a specific processing for endianness. */ | |
4419 | v = bfd_h_get_32 (abfd, raw); | |
4420 | if (bfd_big_endian (abfd)) | |
4421 | { | |
4422 | ref->isym = (v >> 8) & 0xffffff; | |
4423 | ref->flags = v & 0xff; | |
4424 | } | |
4425 | else | |
4426 | { | |
4427 | ref->isym = v & 0xffffff; | |
4428 | ref->flags = (v >> 24) & 0xff; | |
4429 | } | |
4430 | } | |
046b007d | 4431 | } |
3af9a47b | 4432 | |
b32e07d7 | 4433 | if (mdata->dysymtab) |
452216ab | 4434 | return FALSE; |
b32e07d7 TG |
4435 | mdata->dysymtab = cmd; |
4436 | ||
452216ab | 4437 | return TRUE; |
3af9a47b NC |
4438 | } |
4439 | ||
452216ab | 4440 | static bfd_boolean |
ab273af8 | 4441 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4442 | { |
046b007d TG |
4443 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
4444 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 4445 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
4446 | |
4447 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
4448 | ||
47daa70f | 4449 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4450 | return FALSE; |
a95a4550 | 4451 | |
46d1c23b TG |
4452 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
4453 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
4454 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
4455 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
4456 | symtab->symbols = NULL; |
4457 | symtab->strtab = NULL; | |
3af9a47b | 4458 | |
046b007d | 4459 | if (symtab->nsyms != 0) |
15e1c58a TG |
4460 | abfd->flags |= HAS_SYMS; |
4461 | ||
046b007d | 4462 | if (mdata->symtab) |
452216ab | 4463 | return FALSE; |
046b007d | 4464 | mdata->symtab = symtab; |
452216ab | 4465 | return TRUE; |
3af9a47b NC |
4466 | } |
4467 | ||
452216ab | 4468 | static bfd_boolean |
ab273af8 | 4469 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
4470 | { |
4471 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
4472 | |
4473 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
4474 | ||
47daa70f | 4475 | if (bfd_bread (cmd->uuid, 16, abfd) != 16) |
452216ab | 4476 | return FALSE; |
15e1c58a | 4477 | |
452216ab | 4478 | return TRUE; |
15e1c58a TG |
4479 | } |
4480 | ||
452216ab | 4481 | static bfd_boolean |
ab273af8 | 4482 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4483 | { |
4484 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 4485 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 4486 | |
47daa70f | 4487 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4488 | return FALSE; |
046b007d | 4489 | |
46d1c23b TG |
4490 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
4491 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
452216ab | 4492 | return TRUE; |
046b007d TG |
4493 | } |
4494 | ||
452216ab | 4495 | static bfd_boolean |
ab273af8 | 4496 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
4497 | { |
4498 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 4499 | struct mach_o_str_command_external raw; |
046b007d TG |
4500 | unsigned long off; |
4501 | ||
47daa70f | 4502 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4503 | return FALSE; |
046b007d | 4504 | |
46d1c23b | 4505 | off = bfd_get_32 (abfd, raw.str); |
046b007d TG |
4506 | cmd->stroff = command->offset + off; |
4507 | cmd->str_len = command->len - off; | |
4508 | cmd->str = bfd_alloc (abfd, cmd->str_len); | |
4509 | if (cmd->str == NULL) | |
452216ab | 4510 | return FALSE; |
046b007d | 4511 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 |
91d6fa6a | 4512 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
452216ab TG |
4513 | return FALSE; |
4514 | return TRUE; | |
046b007d TG |
4515 | } |
4516 | ||
c9ffd2ea TG |
4517 | static unsigned char * |
4518 | bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size) | |
4519 | { | |
4520 | unsigned char *buf; | |
4521 | ||
4522 | buf = bfd_alloc (abfd, size); | |
4523 | if (buf == NULL) | |
4524 | return NULL; | |
4525 | if (bfd_seek (abfd, off, SEEK_SET) != 0 | |
4526 | || bfd_bread (buf, size, abfd) != size) | |
4527 | return NULL; | |
4528 | return buf; | |
4529 | } | |
4530 | ||
4531 | static bfd_boolean | |
4532 | bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd) | |
4533 | { | |
4534 | /* Read rebase content. */ | |
4535 | if (cmd->rebase_content == NULL && cmd->rebase_size != 0) | |
4536 | { | |
4537 | cmd->rebase_content = | |
4538 | bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size); | |
4539 | if (cmd->rebase_content == NULL) | |
4540 | return FALSE; | |
4541 | } | |
4542 | ||
4543 | /* Read bind content. */ | |
4544 | if (cmd->bind_content == NULL && cmd->bind_size != 0) | |
4545 | { | |
4546 | cmd->bind_content = | |
4547 | bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size); | |
4548 | if (cmd->bind_content == NULL) | |
4549 | return FALSE; | |
4550 | } | |
4551 | ||
4552 | /* Read weak bind content. */ | |
4553 | if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0) | |
4554 | { | |
4555 | cmd->weak_bind_content = bfd_mach_o_alloc_and_read | |
4556 | (abfd, cmd->weak_bind_off, cmd->weak_bind_size); | |
4557 | if (cmd->weak_bind_content == NULL) | |
4558 | return FALSE; | |
4559 | } | |
4560 | ||
4561 | /* Read lazy bind content. */ | |
4562 | if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0) | |
4563 | { | |
4564 | cmd->lazy_bind_content = bfd_mach_o_alloc_and_read | |
4565 | (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size); | |
4566 | if (cmd->lazy_bind_content == NULL) | |
4567 | return FALSE; | |
4568 | } | |
4569 | ||
4570 | /* Read export content. */ | |
4571 | if (cmd->export_content == NULL && cmd->export_size != 0) | |
4572 | { | |
4573 | cmd->export_content = bfd_mach_o_alloc_and_read | |
4574 | (abfd, cmd->export_off, cmd->export_size); | |
4575 | if (cmd->export_content == NULL) | |
4576 | return FALSE; | |
4577 | } | |
4578 | ||
4579 | return TRUE; | |
4580 | } | |
4581 | ||
452216ab | 4582 | static bfd_boolean |
ab273af8 | 4583 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
4584 | { |
4585 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 4586 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 4587 | |
47daa70f | 4588 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
452216ab | 4589 | return FALSE; |
ad86f1fb | 4590 | |
46d1c23b TG |
4591 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
4592 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
c9ffd2ea | 4593 | cmd->rebase_content = NULL; |
46d1c23b TG |
4594 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); |
4595 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
c9ffd2ea | 4596 | cmd->bind_content = NULL; |
46d1c23b TG |
4597 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); |
4598 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
c9ffd2ea | 4599 | cmd->weak_bind_content = NULL; |
46d1c23b TG |
4600 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); |
4601 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
c9ffd2ea | 4602 | cmd->lazy_bind_content = NULL; |
46d1c23b TG |
4603 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); |
4604 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
c9ffd2ea | 4605 | cmd->export_content = NULL; |
452216ab | 4606 | return TRUE; |
ad86f1fb TG |
4607 | } |
4608 | ||
edbdea0e TG |
4609 | static bfd_boolean |
4610 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
4611 | { | |
4612 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
4613 | struct mach_o_version_min_command_external raw; | |
edbdea0e | 4614 | |
47daa70f | 4615 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
edbdea0e TG |
4616 | return FALSE; |
4617 | ||
fc7b364a RB |
4618 | cmd->version = bfd_get_32 (abfd, raw.version); |
4619 | cmd->sdk = bfd_get_32 (abfd, raw.sdk); | |
edbdea0e TG |
4620 | return TRUE; |
4621 | } | |
4622 | ||
fc55a902 TG |
4623 | static bfd_boolean |
4624 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) | |
4625 | { | |
4626 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4627 | struct mach_o_encryption_info_command_external raw; | |
4628 | ||
47daa70f TG |
4629 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
4630 | return FALSE; | |
4631 | ||
4632 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4633 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4634 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4635 | return TRUE; | |
4636 | } | |
4637 | ||
4638 | static bfd_boolean | |
4639 | bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command) | |
4640 | { | |
4641 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
4642 | struct mach_o_encryption_info_64_command_external raw; | |
4643 | ||
4644 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
fc55a902 TG |
4645 | return FALSE; |
4646 | ||
4647 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
4648 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
4649 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
4650 | return TRUE; | |
4651 | } | |
4652 | ||
1778ad74 TG |
4653 | static bfd_boolean |
4654 | bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command) | |
4655 | { | |
4656 | bfd_mach_o_main_command *cmd = &command->command.main; | |
4657 | struct mach_o_entry_point_command_external raw; | |
4658 | ||
47daa70f | 4659 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4660 | return FALSE; |
4661 | ||
4662 | cmd->entryoff = bfd_get_64 (abfd, raw.entryoff); | |
4663 | cmd->stacksize = bfd_get_64 (abfd, raw.stacksize); | |
4664 | return TRUE; | |
4665 | } | |
4666 | ||
4667 | static bfd_boolean | |
4668 | bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command) | |
4669 | { | |
4670 | bfd_mach_o_source_version_command *cmd = &command->command.source_version; | |
4671 | struct mach_o_source_version_command_external raw; | |
4672 | bfd_uint64_t ver; | |
4673 | ||
47daa70f | 4674 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
1778ad74 TG |
4675 | return FALSE; |
4676 | ||
4677 | ver = bfd_get_64 (abfd, raw.version); | |
4678 | /* Note: we use a serie of shift to avoid shift > 32 (for which gcc | |
4679 | generates warnings) in case of the host doesn't support 64 bit | |
4680 | integers. */ | |
4681 | cmd->e = ver & 0x3ff; | |
4682 | ver >>= 10; | |
4683 | cmd->d = ver & 0x3ff; | |
4684 | ver >>= 10; | |
4685 | cmd->c = ver & 0x3ff; | |
4686 | ver >>= 10; | |
4687 | cmd->b = ver & 0x3ff; | |
4688 | ver >>= 10; | |
4689 | cmd->a = ver & 0xffffff; | |
4690 | return TRUE; | |
4691 | } | |
4692 | ||
fc7b364a RB |
4693 | static bfd_boolean |
4694 | bfd_mach_o_read_note (bfd *abfd, bfd_mach_o_load_command *command) | |
4695 | { | |
4696 | bfd_mach_o_note_command *cmd = &command->command.note; | |
4697 | struct mach_o_note_command_external raw; | |
4698 | ||
4699 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
4700 | return FALSE; | |
4701 | ||
4702 | memcpy (cmd->data_owner, raw.data_owner, 16); | |
4703 | cmd->offset = bfd_get_64 (abfd, raw.offset); | |
4704 | cmd->size = bfd_get_64 (abfd, raw.size); | |
4705 | return TRUE; | |
4706 | } | |
4707 | ||
4708 | static bfd_boolean | |
4709 | bfd_mach_o_read_build_version (bfd *abfd, bfd_mach_o_load_command *command) | |
4710 | { | |
4711 | bfd_mach_o_build_version_command *cmd = &command->command.build_version; | |
4712 | struct mach_o_build_version_command_external raw; | |
4713 | ||
4714 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
4715 | return FALSE; | |
4716 | ||
4717 | cmd->platform = bfd_get_32 (abfd, raw.platform); | |
4718 | cmd->minos = bfd_get_32 (abfd, raw.minos); | |
4719 | cmd->sdk = bfd_get_32 (abfd, raw.sdk); | |
4720 | cmd->ntools = bfd_get_32 (abfd, raw.ntools); | |
4721 | return TRUE; | |
4722 | } | |
4723 | ||
452216ab | 4724 | static bfd_boolean |
ab273af8 | 4725 | bfd_mach_o_read_segment (bfd *abfd, |
07d6d2b8 AM |
4726 | bfd_mach_o_load_command *command, |
4727 | unsigned int wide) | |
3af9a47b | 4728 | { |
3af9a47b NC |
4729 | bfd_mach_o_segment_command *seg = &command->command.segment; |
4730 | unsigned long i; | |
a95a4550 | 4731 | |
1e8a024a TG |
4732 | if (wide) |
4733 | { | |
46d1c23b TG |
4734 | struct mach_o_segment_command_64_external raw; |
4735 | ||
1e8a024a | 4736 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 4737 | |
47daa70f | 4738 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4739 | return FALSE; |
3af9a47b | 4740 | |
46d1c23b | 4741 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4742 | seg->segname[16] = '\0'; |
1e8a024a | 4743 | |
46d1c23b TG |
4744 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
4745 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
4746 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
4747 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
4748 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4749 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4750 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4751 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
4752 | } |
4753 | else | |
4754 | { | |
46d1c23b TG |
4755 | struct mach_o_segment_command_32_external raw; |
4756 | ||
1e8a024a TG |
4757 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
4758 | ||
47daa70f | 4759 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
07d6d2b8 | 4760 | return FALSE; |
1e8a024a | 4761 | |
46d1c23b | 4762 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 4763 | seg->segname[16] = '\0'; |
1e8a024a | 4764 | |
46d1c23b TG |
4765 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
4766 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
4767 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
4768 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
4769 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
4770 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
4771 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
4772 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 4773 | } |
9d4b6009 TG |
4774 | seg->sect_head = NULL; |
4775 | seg->sect_tail = NULL; | |
3af9a47b | 4776 | |
f1bde64c | 4777 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 4778 | { |
f1bde64c | 4779 | asection *sec; |
a95a4550 | 4780 | |
47daa70f | 4781 | sec = bfd_mach_o_read_section (abfd, seg->initprot, wide); |
f1bde64c | 4782 | if (sec == NULL) |
07d6d2b8 | 4783 | return FALSE; |
f1bde64c | 4784 | |
c9ffd2ea TG |
4785 | bfd_mach_o_append_section_to_segment |
4786 | (seg, bfd_mach_o_get_mach_o_section (sec)); | |
3af9a47b NC |
4787 | } |
4788 | ||
452216ab | 4789 | return TRUE; |
3af9a47b NC |
4790 | } |
4791 | ||
452216ab | 4792 | static bfd_boolean |
ab273af8 | 4793 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4794 | { |
ab273af8 | 4795 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
4796 | } |
4797 | ||
452216ab | 4798 | static bfd_boolean |
ab273af8 | 4799 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 4800 | { |
ab273af8 | 4801 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
4802 | } |
4803 | ||
452216ab | 4804 | static bfd_boolean |
ab273af8 | 4805 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 4806 | { |
47daa70f | 4807 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
46d1c23b TG |
4808 | struct mach_o_load_command_external raw; |
4809 | unsigned int cmd; | |
3af9a47b | 4810 | |
046b007d | 4811 | /* Read command type and length. */ |
47daa70f | 4812 | if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0 |
46d1c23b | 4813 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
452216ab | 4814 | return FALSE; |
3af9a47b | 4815 | |
46d1c23b TG |
4816 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
4817 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; | |
4818 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; | |
4819 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3af9a47b NC |
4820 | |
4821 | switch (command->type) | |
4822 | { | |
4823 | case BFD_MACH_O_LC_SEGMENT: | |
452216ab TG |
4824 | if (!bfd_mach_o_read_segment_32 (abfd, command)) |
4825 | return FALSE; | |
1e8a024a TG |
4826 | break; |
4827 | case BFD_MACH_O_LC_SEGMENT_64: | |
452216ab TG |
4828 | if (!bfd_mach_o_read_segment_64 (abfd, command)) |
4829 | return FALSE; | |
3af9a47b NC |
4830 | break; |
4831 | case BFD_MACH_O_LC_SYMTAB: | |
452216ab TG |
4832 | if (!bfd_mach_o_read_symtab (abfd, command)) |
4833 | return FALSE; | |
3af9a47b NC |
4834 | break; |
4835 | case BFD_MACH_O_LC_SYMSEG: | |
4836 | break; | |
4837 | case BFD_MACH_O_LC_THREAD: | |
4838 | case BFD_MACH_O_LC_UNIXTHREAD: | |
452216ab TG |
4839 | if (!bfd_mach_o_read_thread (abfd, command)) |
4840 | return FALSE; | |
3af9a47b NC |
4841 | break; |
4842 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
4843 | case BFD_MACH_O_LC_ID_DYLINKER: | |
10be66a4 | 4844 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
452216ab TG |
4845 | if (!bfd_mach_o_read_dylinker (abfd, command)) |
4846 | return FALSE; | |
3af9a47b NC |
4847 | break; |
4848 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
fbe383b9 | 4849 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
3af9a47b NC |
4850 | case BFD_MACH_O_LC_ID_DYLIB: |
4851 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 4852 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 4853 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
452216ab TG |
4854 | if (!bfd_mach_o_read_dylib (abfd, command)) |
4855 | return FALSE; | |
3af9a47b NC |
4856 | break; |
4857 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
452216ab TG |
4858 | if (!bfd_mach_o_read_prebound_dylib (abfd, command)) |
4859 | return FALSE; | |
3af9a47b NC |
4860 | break; |
4861 | case BFD_MACH_O_LC_LOADFVMLIB: | |
4862 | case BFD_MACH_O_LC_IDFVMLIB: | |
452216ab TG |
4863 | if (!bfd_mach_o_read_fvmlib (abfd, command)) |
4864 | return FALSE; | |
9f4a5bd1 | 4865 | break; |
3af9a47b NC |
4866 | case BFD_MACH_O_LC_IDENT: |
4867 | case BFD_MACH_O_LC_FVMFILE: | |
4868 | case BFD_MACH_O_LC_PREPAGE: | |
4869 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 4870 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 4871 | break; |
3af9a47b | 4872 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
4873 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
4874 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
4875 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 4876 | case BFD_MACH_O_LC_RPATH: |
452216ab | 4877 | if (!bfd_mach_o_read_str (abfd, command)) |
07d6d2b8 | 4878 | return FALSE; |
3af9a47b NC |
4879 | break; |
4880 | case BFD_MACH_O_LC_DYSYMTAB: | |
452216ab TG |
4881 | if (!bfd_mach_o_read_dysymtab (abfd, command)) |
4882 | return FALSE; | |
3af9a47b | 4883 | break; |
3af9a47b | 4884 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
452216ab TG |
4885 | if (!bfd_mach_o_read_prebind_cksum (abfd, command)) |
4886 | return FALSE; | |
7a79c514 TG |
4887 | break; |
4888 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
452216ab TG |
4889 | if (!bfd_mach_o_read_twolevel_hints (abfd, command)) |
4890 | return FALSE; | |
3af9a47b | 4891 | break; |
15e1c58a | 4892 | case BFD_MACH_O_LC_UUID: |
452216ab TG |
4893 | if (!bfd_mach_o_read_uuid (abfd, command)) |
4894 | return FALSE; | |
15e1c58a TG |
4895 | break; |
4896 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 4897 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 4898 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
1778ad74 TG |
4899 | case BFD_MACH_O_LC_DATA_IN_CODE: |
4900 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: | |
47daa70f | 4901 | case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT: |
452216ab TG |
4902 | if (!bfd_mach_o_read_linkedit (abfd, command)) |
4903 | return FALSE; | |
15e1c58a | 4904 | break; |
fc55a902 TG |
4905 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
4906 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
452216ab | 4907 | return FALSE; |
fc55a902 | 4908 | break; |
47daa70f TG |
4909 | case BFD_MACH_O_LC_ENCRYPTION_INFO_64: |
4910 | if (!bfd_mach_o_read_encryption_info_64 (abfd, command)) | |
4911 | return FALSE; | |
4912 | break; | |
ad86f1fb | 4913 | case BFD_MACH_O_LC_DYLD_INFO: |
452216ab TG |
4914 | if (!bfd_mach_o_read_dyld_info (abfd, command)) |
4915 | return FALSE; | |
ad86f1fb | 4916 | break; |
edbdea0e TG |
4917 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
4918 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
47daa70f | 4919 | case BFD_MACH_O_LC_VERSION_MIN_WATCHOS: |
fc7b364a | 4920 | case BFD_MACH_O_LC_VERSION_MIN_TVOS: |
edbdea0e | 4921 | if (!bfd_mach_o_read_version_min (abfd, command)) |
452216ab | 4922 | return FALSE; |
edbdea0e | 4923 | break; |
1778ad74 TG |
4924 | case BFD_MACH_O_LC_MAIN: |
4925 | if (!bfd_mach_o_read_main (abfd, command)) | |
452216ab | 4926 | return FALSE; |
1778ad74 TG |
4927 | break; |
4928 | case BFD_MACH_O_LC_SOURCE_VERSION: | |
4929 | if (!bfd_mach_o_read_source_version (abfd, command)) | |
452216ab | 4930 | return FALSE; |
1778ad74 | 4931 | break; |
ddea148b | 4932 | case BFD_MACH_O_LC_LINKER_OPTIONS: |
fc7b364a RB |
4933 | break; |
4934 | case BFD_MACH_O_LC_NOTE: | |
4935 | if (!bfd_mach_o_read_note (abfd, command)) | |
4936 | return FALSE; | |
4937 | break; | |
ddea148b | 4938 | case BFD_MACH_O_LC_BUILD_VERSION: |
fc7b364a RB |
4939 | if (!bfd_mach_o_read_build_version (abfd, command)) |
4940 | return FALSE; | |
ddea148b | 4941 | break; |
3af9a47b | 4942 | default: |
86eafac0 | 4943 | command->len = 0; |
871b3ab2 | 4944 | _bfd_error_handler (_("%pB: unknown load command %#x"), |
d42c267e | 4945 | abfd, command->type); |
86eafac0 | 4946 | return FALSE; |
3af9a47b NC |
4947 | } |
4948 | ||
452216ab | 4949 | return TRUE; |
3af9a47b NC |
4950 | } |
4951 | ||
4952 | static void | |
116c20d2 | 4953 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 4954 | { |
046b007d | 4955 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea | 4956 | bfd_mach_o_load_command *cmd; |
3af9a47b | 4957 | long csect = 0; |
a95a4550 | 4958 | |
15e1c58a | 4959 | /* Count total number of sections. */ |
3af9a47b NC |
4960 | mdata->nsects = 0; |
4961 | ||
c9ffd2ea | 4962 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4963 | { |
c9ffd2ea TG |
4964 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4965 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4966 | { |
c9ffd2ea | 4967 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
e84d6fca | 4968 | |
3af9a47b NC |
4969 | mdata->nsects += seg->nsects; |
4970 | } | |
4971 | } | |
4972 | ||
15e1c58a | 4973 | /* Allocate sections array. */ |
64d29018 NC |
4974 | mdata->sections = bfd_alloc2 (abfd, |
4975 | mdata->nsects, sizeof (bfd_mach_o_section *)); | |
15e1c58a TG |
4976 | |
4977 | /* Fill the array. */ | |
3af9a47b NC |
4978 | csect = 0; |
4979 | ||
c9ffd2ea | 4980 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 4981 | { |
c9ffd2ea TG |
4982 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
4983 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 4984 | { |
c9ffd2ea | 4985 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
07d6d2b8 | 4986 | bfd_mach_o_section *sec; |
3af9a47b NC |
4987 | |
4988 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); | |
4989 | ||
07d6d2b8 | 4990 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
f1bde64c | 4991 | mdata->sections[csect++] = sec; |
3af9a47b NC |
4992 | } |
4993 | } | |
4994 | } | |
4995 | ||
afbb9e17 | 4996 | static bfd_boolean |
116c20d2 | 4997 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 4998 | { |
046b007d | 4999 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c9ffd2ea TG |
5000 | bfd_mach_o_thread_command *thr = NULL; |
5001 | bfd_mach_o_load_command *cmd; | |
3af9a47b NC |
5002 | unsigned long i; |
5003 | ||
c9ffd2ea TG |
5004 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
5005 | if (cmd->type == BFD_MACH_O_LC_THREAD | |
5006 | || cmd->type == BFD_MACH_O_LC_UNIXTHREAD) | |
afbb9e17 | 5007 | { |
07d6d2b8 AM |
5008 | thr = &cmd->command.thread; |
5009 | break; | |
afbb9e17 | 5010 | } |
c9ffd2ea | 5011 | else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1) |
c0fd7846 | 5012 | { |
c9ffd2ea | 5013 | bfd_mach_o_main_command *main_cmd = &cmd->command.main; |
c0fd7846 | 5014 | bfd_mach_o_section *text_sect = mdata->sections[0]; |
c9ffd2ea | 5015 | |
c0fd7846 TG |
5016 | if (text_sect) |
5017 | { | |
5018 | abfd->start_address = main_cmd->entryoff | |
5019 | + (text_sect->addr - text_sect->offset); | |
5020 | return TRUE; | |
5021 | } | |
5022 | } | |
3af9a47b | 5023 | |
5ee43bc4 | 5024 | /* An object file has no start address, so do not fail if not found. */ |
c9ffd2ea | 5025 | if (thr == NULL) |
5ee43bc4 | 5026 | return TRUE; |
3af9a47b | 5027 | |
afbb9e17 | 5028 | /* FIXME: create a subtarget hook ? */ |
c9ffd2ea | 5029 | for (i = 0; i < thr->nflavours; i++) |
3af9a47b | 5030 | { |
a95a4550 | 5031 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
c9ffd2ea | 5032 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
5033 | { |
5034 | unsigned char buf[4]; | |
5035 | ||
c9ffd2ea | 5036 | if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0 |
07d6d2b8 | 5037 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 5038 | return FALSE; |
3af9a47b NC |
5039 | |
5040 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
5041 | } | |
a95a4550 | 5042 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
c9ffd2ea | 5043 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3af9a47b NC |
5044 | { |
5045 | unsigned char buf[4]; | |
5046 | ||
c9ffd2ea | 5047 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
07d6d2b8 | 5048 | || bfd_bread (buf, 4, abfd) != 4) |
afbb9e17 | 5049 | return FALSE; |
3af9a47b NC |
5050 | |
5051 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
5052 | } | |
1e8a024a | 5053 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
07d6d2b8 AM |
5054 | && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
5055 | { | |
5056 | unsigned char buf[8]; | |
1e8a024a | 5057 | |
07d6d2b8 AM |
5058 | if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0 |
5059 | || bfd_bread (buf, 8, abfd) != 8) | |
5060 | return FALSE; | |
1e8a024a | 5061 | |
07d6d2b8 AM |
5062 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5063 | } | |
1e8a024a | 5064 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) |
07d6d2b8 AM |
5065 | && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) |
5066 | { | |
5067 | unsigned char buf[8]; | |
1e8a024a | 5068 | |
07d6d2b8 AM |
5069 | if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
5070 | || bfd_bread (buf, 8, abfd) != 8) | |
5071 | return FALSE; | |
1e8a024a | 5072 | |
07d6d2b8 AM |
5073 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
5074 | } | |
3af9a47b NC |
5075 | } |
5076 | ||
afbb9e17 | 5077 | return TRUE; |
3af9a47b NC |
5078 | } |
5079 | ||
42fa0891 TG |
5080 | bfd_boolean |
5081 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
07d6d2b8 AM |
5082 | enum bfd_architecture arch, |
5083 | unsigned long machine) | |
42fa0891 TG |
5084 | { |
5085 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
5086 | ||
5087 | /* If this isn't the right architecture for this backend, and this | |
5088 | isn't the generic backend, fail. */ | |
5089 | if (arch != bed->arch | |
5090 | && arch != bfd_arch_unknown | |
5091 | && bed->arch != bfd_arch_unknown) | |
5092 | return FALSE; | |
5093 | ||
5094 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
5095 | } | |
5096 | ||
afbb9e17 | 5097 | static bfd_boolean |
116c20d2 NC |
5098 | bfd_mach_o_scan (bfd *abfd, |
5099 | bfd_mach_o_header *header, | |
5100 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
5101 | { |
5102 | unsigned int i; | |
3af9a47b NC |
5103 | enum bfd_architecture cputype; |
5104 | unsigned long cpusubtype; | |
1e8a024a TG |
5105 | unsigned int hdrsize; |
5106 | ||
c2f09c75 | 5107 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 5108 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 5109 | |
3af9a47b | 5110 | mdata->header = *header; |
3af9a47b | 5111 | |
154a1ee5 | 5112 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
5113 | switch (header->filetype) |
5114 | { | |
5115 | case BFD_MACH_O_MH_OBJECT: | |
5116 | abfd->flags |= HAS_RELOC; | |
5117 | break; | |
5118 | case BFD_MACH_O_MH_EXECUTE: | |
5119 | abfd->flags |= EXEC_P; | |
5120 | break; | |
5121 | case BFD_MACH_O_MH_DYLIB: | |
5122 | case BFD_MACH_O_MH_BUNDLE: | |
5123 | abfd->flags |= DYNAMIC; | |
5124 | break; | |
5125 | } | |
5126 | ||
3af9a47b NC |
5127 | abfd->tdata.mach_o_data = mdata; |
5128 | ||
e84d6fca AM |
5129 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
5130 | &cputype, &cpusubtype); | |
3af9a47b NC |
5131 | if (cputype == bfd_arch_unknown) |
5132 | { | |
4eca0228 | 5133 | _bfd_error_handler |
695344c0 | 5134 | /* xgettext:c-format */ |
07d6d2b8 AM |
5135 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), |
5136 | header->cputype, header->cpusubtype); | |
afbb9e17 | 5137 | return FALSE; |
3af9a47b NC |
5138 | } |
5139 | ||
5140 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 5141 | |
3af9a47b NC |
5142 | if (header->ncmds != 0) |
5143 | { | |
c9ffd2ea TG |
5144 | bfd_mach_o_load_command *cmd; |
5145 | ||
5146 | mdata->first_command = NULL; | |
5147 | mdata->last_command = NULL; | |
64d29018 NC |
5148 | |
5149 | cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command)); | |
c9ffd2ea | 5150 | if (cmd == NULL) |
afbb9e17 | 5151 | return FALSE; |
a95a4550 | 5152 | |
3af9a47b NC |
5153 | for (i = 0; i < header->ncmds; i++) |
5154 | { | |
c9ffd2ea TG |
5155 | bfd_mach_o_load_command *cur = &cmd[i]; |
5156 | ||
5157 | bfd_mach_o_append_command (abfd, cur); | |
3af9a47b NC |
5158 | |
5159 | if (i == 0) | |
1e8a024a | 5160 | cur->offset = hdrsize; |
3af9a47b NC |
5161 | else |
5162 | { | |
c9ffd2ea | 5163 | bfd_mach_o_load_command *prev = &cmd[i - 1]; |
3af9a47b NC |
5164 | cur->offset = prev->offset + prev->len; |
5165 | } | |
5166 | ||
452216ab | 5167 | if (!bfd_mach_o_read_command (abfd, cur)) |
afbb9e17 | 5168 | return FALSE; |
a95a4550 | 5169 | } |
3af9a47b NC |
5170 | } |
5171 | ||
c0fd7846 TG |
5172 | /* Sections should be flatten before scanning start address. */ |
5173 | bfd_mach_o_flatten_sections (abfd); | |
5174 | if (!bfd_mach_o_scan_start_address (abfd)) | |
afbb9e17 | 5175 | return FALSE; |
3af9a47b | 5176 | |
afbb9e17 | 5177 | return TRUE; |
3af9a47b NC |
5178 | } |
5179 | ||
b34976b6 | 5180 | bfd_boolean |
154a1ee5 | 5181 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
5182 | { |
5183 | bfd_mach_o_data_struct *mdata = NULL; | |
5184 | ||
b30a5d18 | 5185 | mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 5186 | if (mdata == NULL) |
b34976b6 | 5187 | return FALSE; |
3af9a47b NC |
5188 | abfd->tdata.mach_o_data = mdata; |
5189 | ||
5190 | mdata->header.magic = 0; | |
5191 | mdata->header.cputype = 0; | |
5192 | mdata->header.cpusubtype = 0; | |
5193 | mdata->header.filetype = 0; | |
5194 | mdata->header.ncmds = 0; | |
5195 | mdata->header.sizeofcmds = 0; | |
5196 | mdata->header.flags = 0; | |
5197 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
c9ffd2ea TG |
5198 | mdata->first_command = NULL; |
5199 | mdata->last_command = NULL; | |
3af9a47b NC |
5200 | mdata->nsects = 0; |
5201 | mdata->sections = NULL; | |
4434114c | 5202 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 5203 | |
b34976b6 | 5204 | return TRUE; |
3af9a47b NC |
5205 | } |
5206 | ||
42fa0891 TG |
5207 | static bfd_boolean |
5208 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
5209 | { | |
5210 | bfd_mach_o_data_struct *mdata; | |
5211 | ||
5212 | if (!bfd_mach_o_mkobject_init (abfd)) | |
5213 | return FALSE; | |
5214 | ||
5215 | mdata = bfd_mach_o_get_data (abfd); | |
5216 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
5217 | mdata->header.cputype = 0; | |
5218 | mdata->header.cpusubtype = 0; | |
5219 | mdata->header.byteorder = abfd->xvec->byteorder; | |
5220 | mdata->header.version = 1; | |
5221 | ||
5222 | return TRUE; | |
5223 | } | |
5224 | ||
3af9a47b | 5225 | const bfd_target * |
154a1ee5 | 5226 | bfd_mach_o_header_p (bfd *abfd, |
47daa70f | 5227 | file_ptr hdr_off, |
07d6d2b8 AM |
5228 | bfd_mach_o_filetype filetype, |
5229 | bfd_mach_o_cpu_type cputype) | |
3af9a47b NC |
5230 | { |
5231 | bfd_mach_o_header header; | |
c9ba0c87 | 5232 | bfd_mach_o_data_struct *mdata; |
3af9a47b | 5233 | |
47daa70f | 5234 | if (!bfd_mach_o_read_header (abfd, hdr_off, &header)) |
e84d6fca | 5235 | goto wrong; |
3af9a47b | 5236 | |
e84d6fca AM |
5237 | if (! (header.byteorder == BFD_ENDIAN_BIG |
5238 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 5239 | { |
d42c267e AM |
5240 | _bfd_error_handler (_("unknown header byte-order value %#x"), |
5241 | header.byteorder); | |
e84d6fca | 5242 | goto wrong; |
3af9a47b NC |
5243 | } |
5244 | ||
e84d6fca AM |
5245 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
5246 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
5247 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
5248 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
5249 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
5250 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
5251 | goto wrong; | |
3af9a47b | 5252 | |
154a1ee5 TG |
5253 | /* Check cputype and filetype. |
5254 | In case of wildcard, do not accept magics that are handled by existing | |
5255 | targets. */ | |
5256 | if (cputype) | |
5257 | { | |
5258 | if (header.cputype != cputype) | |
07d6d2b8 | 5259 | goto wrong; |
154a1ee5 | 5260 | } |
26954155 TG |
5261 | else |
5262 | { | |
5263 | #ifndef BFD64 | |
5264 | /* Do not recognize 64 architectures if not configured for 64bit targets. | |
5265 | This could happen only for generic targets. */ | |
5266 | if (mach_o_wide_p (&header)) | |
5267 | goto wrong; | |
5268 | #endif | |
5269 | } | |
b22161d6 | 5270 | |
154a1ee5 TG |
5271 | if (filetype) |
5272 | { | |
5273 | if (header.filetype != filetype) | |
07d6d2b8 | 5274 | goto wrong; |
154a1ee5 TG |
5275 | } |
5276 | else | |
5277 | { | |
5278 | switch (header.filetype) | |
07d6d2b8 AM |
5279 | { |
5280 | case BFD_MACH_O_MH_CORE: | |
5281 | /* Handled by core_p */ | |
5282 | goto wrong; | |
5283 | default: | |
5284 | break; | |
5285 | } | |
154a1ee5 TG |
5286 | } |
5287 | ||
c9ba0c87 AM |
5288 | mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata)); |
5289 | if (mdata == NULL) | |
e84d6fca | 5290 | goto fail; |
47daa70f | 5291 | mdata->hdr_offset = hdr_off; |
3af9a47b | 5292 | |
c9ba0c87 | 5293 | if (!bfd_mach_o_scan (abfd, &header, mdata)) |
e84d6fca | 5294 | goto wrong; |
a95a4550 | 5295 | |
3af9a47b | 5296 | return abfd->xvec; |
e84d6fca AM |
5297 | |
5298 | wrong: | |
5299 | bfd_set_error (bfd_error_wrong_format); | |
5300 | ||
5301 | fail: | |
e84d6fca | 5302 | return NULL; |
3af9a47b NC |
5303 | } |
5304 | ||
154a1ee5 TG |
5305 | static const bfd_target * |
5306 | bfd_mach_o_gen_object_p (bfd *abfd) | |
3af9a47b | 5307 | { |
47daa70f | 5308 | return bfd_mach_o_header_p (abfd, 0, 0, 0); |
154a1ee5 | 5309 | } |
e84d6fca | 5310 | |
154a1ee5 TG |
5311 | static const bfd_target * |
5312 | bfd_mach_o_gen_core_p (bfd *abfd) | |
5313 | { | |
47daa70f | 5314 | return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0); |
3af9a47b NC |
5315 | } |
5316 | ||
3cc27770 TG |
5317 | /* Return the base address of ABFD, ie the address at which the image is |
5318 | mapped. The possible initial pagezero is ignored. */ | |
5319 | ||
5320 | bfd_vma | |
5321 | bfd_mach_o_get_base_address (bfd *abfd) | |
5322 | { | |
5323 | bfd_mach_o_data_struct *mdata; | |
c9ffd2ea | 5324 | bfd_mach_o_load_command *cmd; |
3cc27770 TG |
5325 | |
5326 | /* Check for Mach-O. */ | |
5327 | if (!bfd_mach_o_valid (abfd)) | |
5328 | return 0; | |
5329 | mdata = bfd_mach_o_get_data (abfd); | |
5330 | ||
c9ffd2ea | 5331 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3cc27770 | 5332 | { |
3cc27770 TG |
5333 | if ((cmd->type == BFD_MACH_O_LC_SEGMENT |
5334 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64)) | |
5335 | { | |
5336 | struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment; | |
5337 | ||
5338 | if (segcmd->initprot != 0) | |
5339 | return segcmd->vmaddr; | |
5340 | } | |
5341 | } | |
5342 | return 0; | |
5343 | } | |
5344 | ||
3af9a47b NC |
5345 | typedef struct mach_o_fat_archentry |
5346 | { | |
5347 | unsigned long cputype; | |
5348 | unsigned long cpusubtype; | |
5349 | unsigned long offset; | |
5350 | unsigned long size; | |
5351 | unsigned long align; | |
3af9a47b NC |
5352 | } mach_o_fat_archentry; |
5353 | ||
5354 | typedef struct mach_o_fat_data_struct | |
5355 | { | |
5356 | unsigned long magic; | |
5357 | unsigned long nfat_arch; | |
5358 | mach_o_fat_archentry *archentries; | |
5359 | } mach_o_fat_data_struct; | |
5360 | ||
5361 | const bfd_target * | |
47daa70f | 5362 | bfd_mach_o_fat_archive_p (bfd *abfd) |
3af9a47b | 5363 | { |
e84d6fca | 5364 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 5365 | struct mach_o_fat_header_external hdr; |
3af9a47b NC |
5366 | unsigned long i; |
5367 | ||
c2f09c75 | 5368 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 5369 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 5370 | goto error; |
3af9a47b | 5371 | |
116c20d2 | 5372 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 5373 | if (adata == NULL) |
e84d6fca | 5374 | goto error; |
a95a4550 | 5375 | |
46d1c23b TG |
5376 | adata->magic = bfd_getb32 (hdr.magic); |
5377 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 5378 | if (adata->magic != 0xcafebabe) |
e84d6fca | 5379 | goto error; |
27cc28f9 AS |
5380 | /* Avoid matching Java bytecode files, which have the same magic number. |
5381 | In the Java bytecode file format this field contains the JVM version, | |
5382 | which starts at 43.0. */ | |
5383 | if (adata->nfat_arch > 30) | |
5384 | goto error; | |
3af9a47b | 5385 | |
c2f09c75 | 5386 | adata->archentries = |
64d29018 | 5387 | bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry)); |
3af9a47b | 5388 | if (adata->archentries == NULL) |
e84d6fca | 5389 | goto error; |
3af9a47b NC |
5390 | |
5391 | for (i = 0; i < adata->nfat_arch; i++) | |
5392 | { | |
46d1c23b TG |
5393 | struct mach_o_fat_arch_external arch; |
5394 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 5395 | goto error; |
46d1c23b TG |
5396 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
5397 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
5398 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
5399 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
5400 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
5401 | } |
5402 | ||
5403 | abfd->tdata.mach_o_fat_data = adata; | |
64d29018 | 5404 | |
3af9a47b | 5405 | return abfd->xvec; |
e84d6fca AM |
5406 | |
5407 | error: | |
5408 | if (adata != NULL) | |
5409 | bfd_release (abfd, adata); | |
5410 | bfd_set_error (bfd_error_wrong_format); | |
5411 | return NULL; | |
3af9a47b NC |
5412 | } |
5413 | ||
a4e241ca TG |
5414 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
5415 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
5416 | Set arelt_data and origin fields too. */ | |
5417 | ||
5418 | static void | |
5419 | bfd_mach_o_fat_member_init (bfd *abfd, | |
07d6d2b8 AM |
5420 | enum bfd_architecture arch_type, |
5421 | unsigned long arch_subtype, | |
5422 | mach_o_fat_archentry *entry) | |
a4e241ca TG |
5423 | { |
5424 | struct areltdata *areltdata; | |
5425 | /* Create the member filename. Use ARCH_NAME. */ | |
5426 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
5427 | ||
5428 | if (ap) | |
5429 | { | |
5430 | /* Use the architecture name if known. */ | |
1be5090b | 5431 | abfd->filename = xstrdup (ap->printable_name); |
a4e241ca TG |
5432 | } |
5433 | else | |
5434 | { | |
5435 | /* Forge a uniq id. */ | |
5436 | const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1; | |
1be5090b | 5437 | char *name = xmalloc (namelen); |
a4e241ca | 5438 | snprintf (name, namelen, "0x%lx-0x%lx", |
07d6d2b8 | 5439 | entry->cputype, entry->cpusubtype); |
a4e241ca TG |
5440 | abfd->filename = name; |
5441 | } | |
5442 | ||
06e7acd7 | 5443 | areltdata = bfd_zmalloc (sizeof (struct areltdata)); |
a4e241ca TG |
5444 | areltdata->parsed_size = entry->size; |
5445 | abfd->arelt_data = areltdata; | |
5446 | abfd->iostream = NULL; | |
5447 | abfd->origin = entry->offset; | |
5448 | } | |
5449 | ||
3af9a47b | 5450 | bfd * |
47daa70f | 5451 | bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 5452 | { |
e84d6fca | 5453 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
5454 | mach_o_fat_archentry *entry = NULL; |
5455 | unsigned long i; | |
15e1c58a | 5456 | bfd *nbfd; |
15e1c58a TG |
5457 | enum bfd_architecture arch_type; |
5458 | unsigned long arch_subtype; | |
3af9a47b | 5459 | |
e84d6fca | 5460 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
5461 | BFD_ASSERT (adata != NULL); |
5462 | ||
5463 | /* Find index of previous entry. */ | |
5464 | if (prev == NULL) | |
a4e241ca TG |
5465 | { |
5466 | /* Start at first one. */ | |
5467 | i = 0; | |
5468 | } | |
3af9a47b NC |
5469 | else |
5470 | { | |
a4e241ca | 5471 | /* Find index of PREV. */ |
3af9a47b NC |
5472 | for (i = 0; i < adata->nfat_arch; i++) |
5473 | { | |
15e1c58a | 5474 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
5475 | break; |
5476 | } | |
5477 | ||
5478 | if (i == adata->nfat_arch) | |
5479 | { | |
5480 | /* Not found. */ | |
5481 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 5482 | return NULL; |
3af9a47b | 5483 | } |
a4e241ca TG |
5484 | |
5485 | /* Get next entry. */ | |
5486 | i++; | |
5487 | } | |
a95a4550 | 5488 | |
3af9a47b NC |
5489 | if (i >= adata->nfat_arch) |
5490 | { | |
5491 | bfd_set_error (bfd_error_no_more_archived_files); | |
5492 | return NULL; | |
5493 | } | |
5494 | ||
5495 | entry = &adata->archentries[i]; | |
15e1c58a TG |
5496 | nbfd = _bfd_new_bfd_contained_in (archive); |
5497 | if (nbfd == NULL) | |
5498 | return NULL; | |
5499 | ||
15e1c58a TG |
5500 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
5501 | &arch_type, &arch_subtype); | |
846b9259 | 5502 | |
a4e241ca TG |
5503 | bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry); |
5504 | ||
846b9259 | 5505 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 5506 | |
15e1c58a | 5507 | return nbfd; |
3af9a47b NC |
5508 | } |
5509 | ||
15bbba8d TG |
5510 | /* Analogous to stat call. */ |
5511 | ||
5512 | static int | |
5513 | bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf) | |
5514 | { | |
5515 | if (abfd->arelt_data == NULL) | |
5516 | { | |
5517 | bfd_set_error (bfd_error_invalid_operation); | |
5518 | return -1; | |
5519 | } | |
5520 | ||
5521 | buf->st_mtime = 0; | |
5522 | buf->st_uid = 0; | |
5523 | buf->st_gid = 0; | |
5524 | buf->st_mode = 0644; | |
5525 | buf->st_size = arelt_size (abfd); | |
5526 | ||
5527 | return 0; | |
5528 | } | |
5529 | ||
846b9259 TG |
5530 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
5531 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
5532 | and ARCH, returns it. | |
5533 | In other case, returns NULL. | |
5534 | This function allows transparent uses of fat images. */ | |
a4e241ca | 5535 | |
846b9259 TG |
5536 | bfd * |
5537 | bfd_mach_o_fat_extract (bfd *abfd, | |
5538 | bfd_format format, | |
5539 | const bfd_arch_info_type *arch) | |
5540 | { | |
5541 | bfd *res; | |
5542 | mach_o_fat_data_struct *adata; | |
5543 | unsigned int i; | |
5544 | ||
5545 | if (bfd_check_format (abfd, format)) | |
5546 | { | |
5547 | if (bfd_get_arch_info (abfd) == arch) | |
5548 | return abfd; | |
5549 | return NULL; | |
5550 | } | |
5551 | if (!bfd_check_format (abfd, bfd_archive) | |
5552 | || abfd->xvec != &mach_o_fat_vec) | |
5553 | return NULL; | |
c2f09c75 | 5554 | |
846b9259 TG |
5555 | /* This is a Mach-O fat image. */ |
5556 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
5557 | BFD_ASSERT (adata != NULL); | |
5558 | ||
5559 | for (i = 0; i < adata->nfat_arch; i++) | |
5560 | { | |
5561 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
5562 | enum bfd_architecture cpu_type; | |
5563 | unsigned long cpu_subtype; | |
5564 | ||
5565 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
5566 | &cpu_type, &cpu_subtype); | |
5567 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
5568 | continue; | |
5569 | ||
5570 | /* The architecture is found. */ | |
5571 | res = _bfd_new_bfd_contained_in (abfd); | |
5572 | if (res == NULL) | |
5573 | return NULL; | |
5574 | ||
a4e241ca | 5575 | bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e); |
846b9259 TG |
5576 | |
5577 | if (bfd_check_format (res, format)) | |
5578 | { | |
5579 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
5580 | return res; | |
5581 | } | |
5582 | bfd_close (res); | |
5583 | return NULL; | |
5584 | } | |
5585 | ||
5586 | return NULL; | |
5587 | } | |
5588 | ||
eac61af6 TT |
5589 | static bfd_boolean |
5590 | bfd_mach_o_fat_close_and_cleanup (bfd *abfd) | |
5591 | { | |
5592 | _bfd_unlink_from_archive_parent (abfd); | |
5593 | return TRUE; | |
5594 | } | |
5595 | ||
3af9a47b | 5596 | int |
116c20d2 NC |
5597 | bfd_mach_o_lookup_command (bfd *abfd, |
5598 | bfd_mach_o_load_command_type type, | |
5599 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 5600 | { |
c9ffd2ea TG |
5601 | struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
5602 | struct bfd_mach_o_load_command *cmd; | |
5603 | unsigned int num; | |
3af9a47b | 5604 | |
c9ffd2ea | 5605 | BFD_ASSERT (mdata != NULL); |
3af9a47b NC |
5606 | BFD_ASSERT (mcommand != NULL); |
5607 | ||
5608 | num = 0; | |
c9ffd2ea | 5609 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5610 | { |
3af9a47b NC |
5611 | if (cmd->type != type) |
5612 | continue; | |
5613 | ||
5614 | if (num == 0) | |
c9ffd2ea | 5615 | *mcommand = cmd; |
3af9a47b NC |
5616 | num++; |
5617 | } | |
5618 | ||
3af9a47b NC |
5619 | return num; |
5620 | } | |
5621 | ||
5622 | unsigned long | |
116c20d2 | 5623 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
5624 | { |
5625 | switch (type) | |
5626 | { | |
5627 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
5628 | return 0x04000000; | |
3af9a47b NC |
5629 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
5630 | return 0xc0000000; | |
5631 | case BFD_MACH_O_CPU_TYPE_I386: | |
5632 | return 0xc0000000; | |
5633 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
5634 | return 0xf0000000; | |
3af9a47b | 5635 | case BFD_MACH_O_CPU_TYPE_HPPA: |
e84d6fca | 5636 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
5637 | default: |
5638 | return 0; | |
5639 | } | |
5640 | } | |
5641 | ||
ab76eeaf IS |
5642 | /* The following two tables should be kept, as far as possible, in order of |
5643 | most frequently used entries to optimize their use from gas. */ | |
5644 | ||
c5012cd8 | 5645 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
5646 | { |
5647 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 5648 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
5649 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
5650 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
5651 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
5652 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 5653 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 5654 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
5655 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
5656 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
5657 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
5658 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 5659 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
5660 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
5661 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 5662 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
5663 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
5664 | { NULL, 0} | |
5665 | }; | |
5666 | ||
c5012cd8 | 5667 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 5668 | { |
ab76eeaf IS |
5669 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
5670 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
5671 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
5672 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 5673 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
5674 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
5675 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
5676 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
5677 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 5678 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 5679 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
5680 | { NULL, 0} |
5681 | }; | |
5682 | ||
a4551119 | 5683 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
5684 | |
5685 | unsigned int | |
ab76eeaf | 5686 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 5687 | { |
afbb9e17 | 5688 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 5689 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
5690 | |
5691 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
5692 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
5693 | { |
5694 | /* We found it... does the target support it? */ | |
5695 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
5696 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
5697 | return x->val; /* OK. */ | |
5698 | else | |
5699 | break; /* Not supported. */ | |
5700 | } | |
a4551119 TG |
5701 | /* Maximum section ID = 0xff. */ |
5702 | return 256; | |
53d58d96 TG |
5703 | } |
5704 | ||
5705 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
5706 | ||
5707 | unsigned int | |
5708 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
5709 | { | |
afbb9e17 | 5710 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
5711 | |
5712 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
5713 | if (strcmp (x->name, name) == 0) | |
5714 | return x->val; | |
5715 | return (unsigned int)-1; | |
5716 | } | |
5717 | ||
3af9a47b | 5718 | int |
116c20d2 NC |
5719 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
5720 | unsigned char **rbuf, | |
5721 | unsigned int *rlen) | |
3af9a47b | 5722 | { |
046b007d | 5723 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 5724 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
c9ffd2ea | 5725 | bfd_mach_o_load_command *cmd; |
3af9a47b | 5726 | |
c9ffd2ea | 5727 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
3af9a47b | 5728 | { |
c9ffd2ea | 5729 | bfd_mach_o_segment_command *seg; |
3af9a47b | 5730 | |
c9ffd2ea | 5731 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) |
3af9a47b NC |
5732 | continue; |
5733 | ||
c9ffd2ea | 5734 | seg = &cmd->command.segment; |
3af9a47b NC |
5735 | |
5736 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
5737 | { | |
5738 | unsigned long start = seg->fileoff; | |
5739 | unsigned long end = seg->fileoff + seg->filesize; | |
5740 | unsigned char *buf = bfd_malloc (1024); | |
5741 | unsigned long size = 1024; | |
5742 | ||
5743 | for (;;) | |
5744 | { | |
5745 | bfd_size_type nread = 0; | |
5746 | unsigned long offset; | |
5747 | int found_nonnull = 0; | |
5748 | ||
5749 | if (size > (end - start)) | |
5750 | size = (end - start); | |
5751 | ||
515ef31d NC |
5752 | buf = bfd_realloc_or_free (buf, size); |
5753 | if (buf == NULL) | |
5754 | return -1; | |
c2f09c75 TG |
5755 | |
5756 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
07d6d2b8 AM |
5757 | { |
5758 | free (buf); | |
5759 | return -1; | |
5760 | } | |
c2f09c75 | 5761 | |
3af9a47b | 5762 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 5763 | |
3af9a47b | 5764 | if (nread != size) |
515ef31d NC |
5765 | { |
5766 | free (buf); | |
5767 | return -1; | |
5768 | } | |
a95a4550 | 5769 | |
3af9a47b NC |
5770 | for (offset = 4; offset <= size; offset += 4) |
5771 | { | |
e84d6fca | 5772 | unsigned long val; |
3af9a47b | 5773 | |
e84d6fca | 5774 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
5775 | if (! found_nonnull) |
5776 | { | |
5777 | if (val != 0) | |
5778 | found_nonnull = 1; | |
5779 | } | |
5780 | else if (val == 0x0) | |
5781 | { | |
e84d6fca AM |
5782 | unsigned long bottom; |
5783 | unsigned long top; | |
3af9a47b | 5784 | |
e84d6fca AM |
5785 | bottom = seg->fileoff + seg->filesize - offset; |
5786 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
5787 | *rbuf = bfd_malloc (top - bottom); |
5788 | *rlen = top - bottom; | |
5789 | ||
5790 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 5791 | free (buf); |
3af9a47b NC |
5792 | return 0; |
5793 | } | |
5794 | } | |
5795 | ||
5796 | if (size == (end - start)) | |
5797 | break; | |
5798 | ||
5799 | size *= 2; | |
5800 | } | |
515ef31d NC |
5801 | |
5802 | free (buf); | |
3af9a47b NC |
5803 | } |
5804 | } | |
5805 | ||
5806 | return -1; | |
5807 | } | |
5808 | ||
5809 | char * | |
116c20d2 | 5810 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
5811 | { |
5812 | unsigned char *buf = NULL; | |
5813 | unsigned int len = 0; | |
452216ab | 5814 | int ret; |
3af9a47b NC |
5815 | |
5816 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
5817 | if (ret < 0) | |
5818 | return NULL; | |
5819 | ||
f075ee0c | 5820 | return (char *) buf; |
3af9a47b NC |
5821 | } |
5822 | ||
5823 | int | |
116c20d2 | 5824 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
5825 | { |
5826 | return 0; | |
5827 | } | |
5828 | ||
2ca7691a TG |
5829 | static bfd_mach_o_uuid_command * |
5830 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
5831 | { | |
09fe2662 | 5832 | bfd_mach_o_load_command *uuid_cmd = NULL; |
2ca7691a | 5833 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); |
09fe2662 | 5834 | if (ncmd != 1 || uuid_cmd == NULL) |
2ca7691a TG |
5835 | return FALSE; |
5836 | return &uuid_cmd->command.uuid; | |
5837 | } | |
5838 | ||
5839 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
5840 | ||
5841 | static bfd_boolean | |
5842 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) | |
5843 | { | |
5844 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
5845 | ||
5846 | BFD_ASSERT (abfd); | |
5847 | BFD_ASSERT (uuid_cmd); | |
5848 | ||
5849 | if (!bfd_check_format (abfd, bfd_object)) | |
5850 | return FALSE; | |
5851 | ||
5852 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
5853 | || bfd_mach_o_get_data (abfd) == NULL | |
5854 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
5855 | return FALSE; | |
5856 | ||
5857 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5858 | if (dsym_uuid_cmd == NULL) | |
5859 | return FALSE; | |
5860 | ||
5861 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
07d6d2b8 | 5862 | sizeof (uuid_cmd->uuid)) != 0) |
2ca7691a TG |
5863 | return FALSE; |
5864 | ||
5865 | return TRUE; | |
5866 | } | |
5867 | ||
5868 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
5869 | The caller is responsible for closing the returned BFD object and | |
5870 | its my_archive if the returned BFD is in a fat dSYM. */ | |
5871 | ||
5872 | static bfd * | |
5873 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
07d6d2b8 AM |
5874 | const bfd_mach_o_uuid_command *uuid_cmd, |
5875 | const bfd_arch_info_type *arch) | |
2ca7691a TG |
5876 | { |
5877 | bfd *base_dsym_bfd, *dsym_bfd; | |
5878 | ||
5879 | BFD_ASSERT (uuid_cmd); | |
5880 | ||
5881 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
5882 | if (base_dsym_bfd == NULL) | |
5883 | return NULL; | |
5884 | ||
5885 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
5886 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
5887 | return dsym_bfd; | |
5888 | ||
5889 | bfd_close (dsym_bfd); | |
5890 | if (base_dsym_bfd != dsym_bfd) | |
5891 | bfd_close (base_dsym_bfd); | |
5892 | ||
5893 | return NULL; | |
5894 | } | |
5895 | ||
5896 | /* Return a BFD created from a dSYM file for ABFD. | |
5897 | The caller is responsible for closing the returned BFD object, its | |
5898 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
5899 | ||
5900 | static bfd * | |
5901 | bfd_mach_o_follow_dsym (bfd *abfd) | |
5902 | { | |
5903 | char *dsym_filename; | |
5904 | bfd_mach_o_uuid_command *uuid_cmd; | |
5905 | bfd *dsym_bfd, *base_bfd = abfd; | |
5906 | const char *base_basename; | |
5907 | ||
5908 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
5909 | return NULL; | |
5910 | ||
b0cffb47 | 5911 | if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive)) |
2ca7691a TG |
5912 | base_bfd = abfd->my_archive; |
5913 | /* BFD may have been opened from a stream. */ | |
5914 | if (base_bfd->filename == NULL) | |
5915 | { | |
5916 | bfd_set_error (bfd_error_invalid_operation); | |
5917 | return NULL; | |
5918 | } | |
5919 | base_basename = lbasename (base_bfd->filename); | |
5920 | ||
5921 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
5922 | if (uuid_cmd == NULL) | |
5923 | return NULL; | |
5924 | ||
5925 | /* TODO: We assume the DWARF file has the same as the binary's. | |
5926 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
5927 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
5928 | */ | |
5929 | dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename) | |
07d6d2b8 AM |
5930 | + strlen (dsym_subdir) + 1 |
5931 | + strlen (base_basename) + 1); | |
2ca7691a | 5932 | sprintf (dsym_filename, "%s%s/%s", |
07d6d2b8 | 5933 | base_bfd->filename, dsym_subdir, base_basename); |
2ca7691a TG |
5934 | |
5935 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
07d6d2b8 | 5936 | bfd_get_arch_info (abfd)); |
2ca7691a TG |
5937 | if (dsym_bfd == NULL) |
5938 | free (dsym_filename); | |
5939 | ||
5940 | return dsym_bfd; | |
5941 | } | |
5942 | ||
d9071b0c TG |
5943 | bfd_boolean |
5944 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
d9071b0c | 5945 | asymbol **symbols, |
fb167eb2 | 5946 | asection *section, |
d9071b0c TG |
5947 | bfd_vma offset, |
5948 | const char **filename_ptr, | |
5949 | const char **functionname_ptr, | |
fb167eb2 AM |
5950 | unsigned int *line_ptr, |
5951 | unsigned int *discriminator_ptr) | |
d9071b0c TG |
5952 | { |
5953 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 5954 | if (mdata == NULL) |
d9071b0c | 5955 | return FALSE; |
2ca7691a TG |
5956 | switch (mdata->header.filetype) |
5957 | { | |
5958 | case BFD_MACH_O_MH_OBJECT: | |
5959 | break; | |
5960 | case BFD_MACH_O_MH_EXECUTE: | |
5961 | case BFD_MACH_O_MH_DYLIB: | |
5962 | case BFD_MACH_O_MH_BUNDLE: | |
5963 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
5964 | if (mdata->dwarf2_find_line_info == NULL) | |
07d6d2b8 AM |
5965 | { |
5966 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
5967 | /* When we couldn't find dSYM for this binary, we look for | |
5968 | the debug information in the binary itself. In this way, | |
5969 | we won't try finding separated dSYM again because | |
5970 | mdata->dwarf2_find_line_info will be filled. */ | |
5971 | if (! mdata->dsym_bfd) | |
5972 | break; | |
5973 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
5974 | dwarf_debug_sections, symbols, | |
5975 | &mdata->dwarf2_find_line_info, | |
93ee1e36 | 5976 | FALSE)) |
07d6d2b8 AM |
5977 | return FALSE; |
5978 | } | |
2ca7691a TG |
5979 | break; |
5980 | default: | |
5981 | return FALSE; | |
5982 | } | |
fb167eb2 AM |
5983 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
5984 | filename_ptr, functionname_ptr, | |
5985 | line_ptr, discriminator_ptr, | |
5986 | dwarf_debug_sections, 0, | |
5987 | &mdata->dwarf2_find_line_info); | |
d9071b0c TG |
5988 | } |
5989 | ||
5990 | bfd_boolean | |
5991 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
5992 | { | |
5993 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
5994 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
5995 | { |
5996 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
5997 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a | 5998 | if (mdata->dsym_bfd != NULL) |
07d6d2b8 AM |
5999 | { |
6000 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
cf466c2a NC |
6001 | #if 0 |
6002 | /* FIXME: PR 19435: This calculation to find the memory allocated by | |
6003 | bfd_mach_o_follow_dsym for the filename does not always end up | |
6004 | selecting the correct pointer. Unfortunately this problem is | |
6005 | very hard to reproduce on a non Mach-O native system, so until it | |
6006 | can be traced and fixed on such a system, this code will remain | |
6007 | commented out. This does mean that there will be a memory leak, | |
6008 | but it is small, and happens when we are closing down, so it | |
c244074c | 6009 | should not matter too much. */ |
07d6d2b8 AM |
6010 | char *dsym_filename = (char *)(fat_bfd |
6011 | ? fat_bfd->filename | |
6012 | : mdata->dsym_bfd->filename); | |
cf466c2a | 6013 | #endif |
07d6d2b8 AM |
6014 | bfd_close (mdata->dsym_bfd); |
6015 | mdata->dsym_bfd = NULL; | |
6016 | if (fat_bfd) | |
6017 | bfd_close (fat_bfd); | |
cf466c2a | 6018 | #if 0 |
07d6d2b8 | 6019 | free (dsym_filename); |
cf466c2a | 6020 | #endif |
07d6d2b8 | 6021 | } |
4434114c | 6022 | } |
dff55db0 | 6023 | |
d9071b0c TG |
6024 | return _bfd_generic_close_and_cleanup (abfd); |
6025 | } | |
6026 | ||
c6643fcc NC |
6027 | bfd_boolean |
6028 | bfd_mach_o_free_cached_info (bfd *abfd) | |
dff55db0 TG |
6029 | { |
6030 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
6031 | asection *asect; | |
6032 | free (mdata->dyn_reloc_cache); | |
6033 | mdata->dyn_reloc_cache = NULL; | |
6034 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
6035 | { | |
6036 | free (asect->relocation); | |
6037 | asect->relocation = NULL; | |
6038 | } | |
6039 | ||
6040 | return TRUE; | |
6041 | } | |
6042 | ||
68ffbac6 | 6043 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
92bc0e80 TG |
6044 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
6045 | ||
bcb51645 | 6046 | #define bfd_mach_o_canonicalize_one_reloc NULL |
92bc0e80 | 6047 | #define bfd_mach_o_swap_reloc_out NULL |
b32e07d7 | 6048 | #define bfd_mach_o_print_thread NULL |
a4551119 | 6049 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 6050 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 6051 | |
07d6d2b8 AM |
6052 | #define TARGET_NAME mach_o_be_vec |
6053 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 6054 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6055 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6056 | #define TARGET_BIG_ENDIAN 1 |
6057 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 6058 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
6059 | #include "mach-o-target.c" |
6060 | ||
6061 | #undef TARGET_NAME | |
6062 | #undef TARGET_STRING | |
42fa0891 | 6063 | #undef TARGET_ARCHITECTURE |
4384b284 | 6064 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6065 | #undef TARGET_BIG_ENDIAN |
6066 | #undef TARGET_ARCHIVE | |
b93a1992 | 6067 | #undef TARGET_PRIORITY |
3af9a47b | 6068 | |
07d6d2b8 AM |
6069 | #define TARGET_NAME mach_o_le_vec |
6070 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 6071 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6072 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6073 | #define TARGET_BIG_ENDIAN 0 |
6074 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 6075 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
6076 | |
6077 | #include "mach-o-target.c" | |
6078 | ||
6079 | #undef TARGET_NAME | |
6080 | #undef TARGET_STRING | |
42fa0891 | 6081 | #undef TARGET_ARCHITECTURE |
4384b284 | 6082 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6083 | #undef TARGET_BIG_ENDIAN |
6084 | #undef TARGET_ARCHIVE | |
b93a1992 | 6085 | #undef TARGET_PRIORITY |
3af9a47b | 6086 | |
8f95b6e4 | 6087 | /* Not yet handled: creating an archive. */ |
07d6d2b8 | 6088 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
8f95b6e4 | 6089 | |
eac61af6 | 6090 | #define bfd_mach_o_close_and_cleanup bfd_mach_o_fat_close_and_cleanup |
47daa70f | 6091 | |
8f95b6e4 | 6092 | /* Not used. */ |
07d6d2b8 | 6093 | #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt |
47daa70f TG |
6094 | #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file |
6095 | #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p | |
8f95b6e4 | 6096 | |
07d6d2b8 AM |
6097 | #define TARGET_NAME mach_o_fat_vec |
6098 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 6099 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
4384b284 | 6100 | #define TARGET_PAGESIZE 1 |
07d6d2b8 AM |
6101 | #define TARGET_BIG_ENDIAN 1 |
6102 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 6103 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
6104 | |
6105 | #include "mach-o-target.c" | |
6106 | ||
6107 | #undef TARGET_NAME | |
6108 | #undef TARGET_STRING | |
42fa0891 | 6109 | #undef TARGET_ARCHITECTURE |
4384b284 | 6110 | #undef TARGET_PAGESIZE |
3af9a47b NC |
6111 | #undef TARGET_BIG_ENDIAN |
6112 | #undef TARGET_ARCHIVE | |
b93a1992 | 6113 | #undef TARGET_PRIORITY |