Commit | Line | Data |
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3af9a47b | 1 | /* Mach-O support for BFD. |
4f608e79 | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
7f307238 | 3 | 2009, 2010, 2011, 2012 |
3af9a47b NC |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b NC |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a95a4550 | 19 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
3af9a47b | 22 | |
3db64b00 | 23 | #include "sysdep.h" |
3af9a47b NC |
24 | #include "mach-o.h" |
25 | #include "bfd.h" | |
3af9a47b NC |
26 | #include "libbfd.h" |
27 | #include "libiberty.h" | |
15e1c58a | 28 | #include "aout/stab_gnu.h" |
46d1c23b TG |
29 | #include "mach-o/reloc.h" |
30 | #include "mach-o/external.h" | |
3af9a47b | 31 | #include <ctype.h> |
7f307238 IS |
32 | #include <stdlib.h> |
33 | #include <string.h> | |
3af9a47b | 34 | |
154a1ee5 TG |
35 | #define bfd_mach_o_object_p bfd_mach_o_gen_object_p |
36 | #define bfd_mach_o_core_p bfd_mach_o_gen_core_p | |
42fa0891 | 37 | #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject |
116c20d2 | 38 | |
92bc0e80 TG |
39 | #define FILE_ALIGN(off, algn) \ |
40 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn))) | |
41 | ||
c2f09c75 | 42 | unsigned int |
1e8a024a TG |
43 | bfd_mach_o_version (bfd *abfd) |
44 | { | |
45 | bfd_mach_o_data_struct *mdata = NULL; | |
46 | ||
47 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
046b007d | 48 | mdata = bfd_mach_o_get_data (abfd); |
1e8a024a TG |
49 | |
50 | return mdata->header.version; | |
51 | } | |
52 | ||
b34976b6 | 53 | bfd_boolean |
116c20d2 | 54 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
55 | { |
56 | if (abfd == NULL || abfd->xvec == NULL) | |
154a1ee5 | 57 | return FALSE; |
3af9a47b | 58 | |
154a1ee5 TG |
59 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
60 | return FALSE; | |
3af9a47b | 61 | |
046b007d | 62 | if (bfd_mach_o_get_data (abfd) == NULL) |
154a1ee5 TG |
63 | return FALSE; |
64 | return TRUE; | |
65 | } | |
66 | ||
c2f09c75 TG |
67 | static INLINE bfd_boolean |
68 | mach_o_wide_p (bfd_mach_o_header *header) | |
69 | { | |
70 | switch (header->version) | |
71 | { | |
72 | case 1: | |
73 | return FALSE; | |
74 | case 2: | |
75 | return TRUE; | |
76 | default: | |
77 | BFD_FAIL (); | |
78 | return FALSE; | |
79 | } | |
80 | } | |
81 | ||
82 | static INLINE bfd_boolean | |
83 | bfd_mach_o_wide_p (bfd *abfd) | |
84 | { | |
046b007d | 85 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
c2f09c75 TG |
86 | } |
87 | ||
154a1ee5 TG |
88 | /* Tables to translate well known Mach-O segment/section names to bfd |
89 | names. Use of canonical names (such as .text or .debug_frame) is required | |
90 | by gdb. */ | |
91 | ||
a4551119 TG |
92 | /* __TEXT Segment. */ |
93 | static const mach_o_section_name_xlat text_section_names_xlat[] = | |
154a1ee5 | 94 | { |
a4551119 TG |
95 | { ".text", "__text", |
96 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
97 | BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0}, | |
98 | { ".const", "__const", | |
99 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
100 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
101 | { ".static_const", "__static_const", | |
102 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
103 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
104 | { ".cstring", "__cstring", | |
105 | SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS, | |
106 | BFD_MACH_O_S_CSTRING_LITERALS, | |
107 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
108 | { ".literal4", "__literal4", | |
109 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS, | |
110 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
111 | { ".literal8", "__literal8", | |
112 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS, | |
113 | BFD_MACH_O_S_ATTR_NONE, 3}, | |
114 | { ".literal16", "__literal16", | |
115 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS, | |
116 | BFD_MACH_O_S_ATTR_NONE, 4}, | |
117 | { ".constructor", "__constructor", | |
118 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
119 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
120 | { ".destructor", "__destructor", | |
121 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
122 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
123 | { ".eh_frame", "__eh_frame", | |
124 | SEC_READONLY | SEC_LOAD, BFD_MACH_O_S_COALESCED, | |
125 | BFD_MACH_O_S_ATTR_LIVE_SUPPORT | |
126 | | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS | |
127 | | BFD_MACH_O_S_ATTR_NO_TOC, 3}, | |
128 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
129 | }; |
130 | ||
a4551119 TG |
131 | /* __DATA Segment. */ |
132 | static const mach_o_section_name_xlat data_section_names_xlat[] = | |
154a1ee5 | 133 | { |
a4551119 TG |
134 | { ".data", "__data", |
135 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
136 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
137 | { ".bss", "__bss", | |
138 | SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL, | |
139 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
140 | { ".const_data", "__const", | |
141 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
142 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
143 | { ".static_data", "__static_data", | |
144 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
145 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
146 | { ".mod_init_func", "__mod_init_func", | |
147 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS, | |
148 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
149 | { ".mod_term_func", "__mod_term_func", | |
150 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS, | |
151 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
152 | { ".dyld", "__dyld", | |
153 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
154 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
155 | { ".cfstring", "__cfstring", | |
156 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
157 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
158 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
159 | }; |
160 | ||
a4551119 TG |
161 | /* __DWARF Segment. */ |
162 | static const mach_o_section_name_xlat dwarf_section_names_xlat[] = | |
154a1ee5 | 163 | { |
a4551119 TG |
164 | { ".debug_frame", "__debug_frame", |
165 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
166 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
167 | { ".debug_info", "__debug_info", | |
168 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
169 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
170 | { ".debug_abbrev", "__debug_abbrev", | |
171 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
172 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
173 | { ".debug_aranges", "__debug_aranges", | |
174 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
175 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
176 | { ".debug_macinfo", "__debug_macinfo", | |
177 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
178 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
179 | { ".debug_line", "__debug_line", | |
180 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
181 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
182 | { ".debug_loc", "__debug_loc", | |
183 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
184 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
185 | { ".debug_pubnames", "__debug_pubnames", | |
186 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
187 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
188 | { ".debug_pubtypes", "__debug_pubtypes", | |
189 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
190 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
191 | { ".debug_str", "__debug_str", | |
192 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
193 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
194 | { ".debug_ranges", "__debug_ranges", | |
195 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
196 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
197 | { ".debug_macro", "__debug_macro", | |
198 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
199 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
200 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
201 | }; |
202 | ||
a4551119 TG |
203 | /* __OBJC Segment. */ |
204 | static const mach_o_section_name_xlat objc_section_names_xlat[] = | |
205 | { | |
206 | { ".objc_class", "__class", | |
207 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
208 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
209 | { ".objc_meta_class", "__meta_class", | |
210 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
211 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
212 | { ".objc_cat_cls_meth", "__cat_cls_meth", | |
213 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
214 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
215 | { ".objc_cat_inst_meth", "__cat_inst_meth", | |
216 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
217 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
218 | { ".objc_protocol", "__protocol", | |
219 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
220 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
221 | { ".objc_string_object", "__string_object", | |
222 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
223 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
224 | { ".objc_cls_meth", "__cls_meth", | |
225 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
226 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
227 | { ".objc_inst_meth", "__inst_meth", | |
228 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
229 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
230 | { ".objc_cls_refs", "__cls_refs", | |
231 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
232 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
233 | { ".objc_message_refs", "__message_refs", | |
234 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
235 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
236 | { ".objc_symbols", "__symbols", | |
237 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
238 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
239 | { ".objc_category", "__category", | |
240 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
241 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
242 | { ".objc_class_vars", "__class_vars", | |
243 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
244 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
245 | { ".objc_instance_vars", "__instance_vars", | |
246 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
247 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
248 | { ".objc_module_info", "__module_info", | |
249 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
250 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
251 | { ".objc_selector_strs", "__selector_strs", | |
252 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS, | |
253 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
254 | { ".objc_image_info", "__image_info", | |
255 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
256 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
257 | { ".objc_selector_fixup", "__sel_fixup", | |
258 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
259 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
260 | /* Objc V1 */ | |
261 | { ".objc1_class_ext", "__class_ext", | |
262 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
263 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
264 | { ".objc1_property_list", "__property", | |
265 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
266 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
267 | { ".objc1_protocol_ext", "__protocol_ext", | |
268 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
269 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
270 | { NULL, NULL, 0, 0, 0, 0} | |
271 | }; | |
5a5cbf72 | 272 | |
a4551119 | 273 | static const mach_o_segment_name_xlat segsec_names_xlat[] = |
154a1ee5 | 274 | { |
154a1ee5 TG |
275 | { "__TEXT", text_section_names_xlat }, |
276 | { "__DATA", data_section_names_xlat }, | |
5a5cbf72 | 277 | { "__DWARF", dwarf_section_names_xlat }, |
a4551119 | 278 | { "__OBJC", objc_section_names_xlat }, |
154a1ee5 TG |
279 | { NULL, NULL } |
280 | }; | |
281 | ||
2ca7691a TG |
282 | static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF"; |
283 | ||
a4551119 TG |
284 | /* For both cases bfd-name => mach-o name and vice versa, the specific target |
285 | is checked before the generic. This allows a target (e.g. ppc for cstring) | |
286 | to override the generic definition with a more specific one. */ | |
154a1ee5 | 287 | |
a4551119 TG |
288 | /* Fetch the translation from a Mach-O section designation (segment, section) |
289 | as a bfd short name, if one exists. Otherwise return NULL. | |
290 | ||
291 | Allow the segment and section names to be unterminated 16 byte arrays. */ | |
292 | ||
293 | const mach_o_section_name_xlat * | |
294 | bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname, | |
295 | const char *sectname) | |
154a1ee5 TG |
296 | { |
297 | const struct mach_o_segment_name_xlat *seg; | |
a4551119 TG |
298 | const mach_o_section_name_xlat *sec; |
299 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
154a1ee5 | 300 | |
a4551119 TG |
301 | /* First try any target-specific translations defined... */ |
302 | if (bed->segsec_names_xlat) | |
303 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
304 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
305 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
306 | if (strncmp (sec->mach_o_name, sectname, | |
307 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
308 | return sec; | |
8462aec7 | 309 | |
a4551119 | 310 | /* ... and then the Mach-O generic ones. */ |
154a1ee5 | 311 | for (seg = segsec_names_xlat; seg->segname; seg++) |
a4551119 TG |
312 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) |
313 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
314 | if (strncmp (sec->mach_o_name, sectname, | |
315 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
316 | return sec; | |
154a1ee5 | 317 | |
a4551119 | 318 | return NULL; |
53d58d96 TG |
319 | } |
320 | ||
a4551119 TG |
321 | /* If the bfd_name for this section is a 'canonical' form for which we |
322 | know the Mach-O data, return the segment name and the data for the | |
323 | Mach-O equivalent. Otherwise return NULL. */ | |
7ba695a9 | 324 | |
a4551119 TG |
325 | const mach_o_section_name_xlat * |
326 | bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name, | |
327 | const char **segname) | |
53d58d96 | 328 | { |
a4551119 TG |
329 | const struct mach_o_segment_name_xlat *seg; |
330 | const mach_o_section_name_xlat *sec; | |
331 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
332 | *segname = NULL; | |
333 | ||
334 | if (bfd_name[0] != '.') | |
335 | return NULL; | |
336 | ||
337 | /* First try any target-specific translations defined... */ | |
338 | if (bed->segsec_names_xlat) | |
339 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
340 | for (sec = seg->sections; sec->bfd_name; sec++) | |
341 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
342 | { | |
343 | *segname = seg->segname; | |
344 | return sec; | |
345 | } | |
346 | ||
347 | /* ... and then the Mach-O generic ones. */ | |
348 | for (seg = segsec_names_xlat; seg->segname; seg++) | |
349 | for (sec = seg->sections; sec->bfd_name; sec++) | |
350 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
351 | { | |
352 | *segname = seg->segname; | |
353 | return sec; | |
354 | } | |
355 | ||
356 | return NULL; | |
357 | } | |
358 | ||
359 | /* Convert Mach-O section name to BFD. | |
360 | ||
361 | Try to use standard/canonical names, for which we have tables including | |
362 | default flag settings - which are returned. Otherwise forge a new name | |
363 | in the form "<segmentname>.<sectionname>" this will be prefixed with | |
364 | LC_SEGMENT. if the segment name does not begin with an underscore. | |
365 | ||
366 | SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL- | |
367 | terminated if the name length is exactly 16 bytes - but must be if the name | |
368 | length is less than 16 characters). */ | |
369 | ||
370 | void | |
371 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname, | |
372 | const char *secname, const char **name, | |
373 | flagword *flags) | |
374 | { | |
375 | const mach_o_section_name_xlat *xlat; | |
53d58d96 TG |
376 | char *res; |
377 | unsigned int len; | |
378 | const char *pfx = ""; | |
379 | ||
a4551119 TG |
380 | *name = NULL; |
381 | *flags = SEC_NO_FLAGS; | |
53d58d96 | 382 | |
a4551119 TG |
383 | /* First search for a canonical name... |
384 | xlat will be non-null if there is an entry for segname, secname. */ | |
385 | xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname); | |
386 | if (xlat) | |
387 | { | |
388 | len = strlen (xlat->bfd_name); | |
389 | res = bfd_alloc (abfd, len+1); | |
390 | if (res == NULL) | |
391 | return; | |
392 | memcpy (res, xlat->bfd_name, len+1); | |
393 | *name = res; | |
394 | *flags = xlat->bfd_flags; | |
395 | return; | |
396 | } | |
397 | ||
398 | /* ... else we make up a bfd name from the segment concatenated with the | |
399 | section. */ | |
154a1ee5 | 400 | |
7ba695a9 | 401 | len = 16 + 1 + 16 + 1; |
154a1ee5 | 402 | |
c2f09c75 TG |
403 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
404 | with an underscore. */ | |
f1bde64c | 405 | if (segname[0] != '_') |
c2f09c75 TG |
406 | { |
407 | static const char seg_pfx[] = "LC_SEGMENT."; | |
408 | ||
409 | pfx = seg_pfx; | |
410 | len += sizeof (seg_pfx) - 1; | |
411 | } | |
412 | ||
154a1ee5 TG |
413 | res = bfd_alloc (abfd, len); |
414 | if (res == NULL) | |
8462aec7 | 415 | return; |
a4551119 | 416 | snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname); |
8462aec7 | 417 | *name = res; |
154a1ee5 TG |
418 | } |
419 | ||
a4551119 | 420 | /* Convert a bfd section name to a Mach-O segment + section name. |
154a1ee5 | 421 | |
a4551119 TG |
422 | If the name is a canonical one for which we have a Darwin match |
423 | return the translation table - which contains defaults for flags, | |
424 | type, attribute and default alignment data. | |
425 | ||
426 | Otherwise, expand the bfd_name (assumed to be in the form | |
427 | "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */ | |
428 | ||
429 | static const mach_o_section_name_xlat * | |
154a1ee5 TG |
430 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
431 | asection *sect, | |
432 | bfd_mach_o_section *section) | |
433 | { | |
a4551119 | 434 | const mach_o_section_name_xlat *xlat; |
154a1ee5 | 435 | const char *name = bfd_get_section_name (abfd, sect); |
a4551119 | 436 | const char *segname; |
154a1ee5 TG |
437 | const char *dot; |
438 | unsigned int len; | |
439 | unsigned int seglen; | |
440 | unsigned int seclen; | |
441 | ||
a4551119 TG |
442 | memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1); |
443 | memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1); | |
444 | ||
445 | /* See if is a canonical name ... */ | |
446 | xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname); | |
447 | if (xlat) | |
448 | { | |
449 | strcpy (section->segname, segname); | |
450 | strcpy (section->sectname, xlat->mach_o_name); | |
451 | return xlat; | |
452 | } | |
154a1ee5 | 453 | |
a4551119 TG |
454 | /* .. else we convert our constructed one back to Mach-O. |
455 | Strip LC_SEGMENT. prefix, if present. */ | |
154a1ee5 TG |
456 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
457 | name += 11; | |
458 | ||
459 | /* Find a dot. */ | |
460 | dot = strchr (name, '.'); | |
461 | len = strlen (name); | |
462 | ||
463 | /* Try to split name into segment and section names. */ | |
464 | if (dot && dot != name) | |
465 | { | |
466 | seglen = dot - name; | |
467 | seclen = len - (dot + 1 - name); | |
468 | ||
469 | if (seglen < 16 && seclen < 16) | |
470 | { | |
471 | memcpy (section->segname, name, seglen); | |
472 | section->segname[seglen] = 0; | |
473 | memcpy (section->sectname, dot + 1, seclen); | |
474 | section->sectname[seclen] = 0; | |
a4551119 | 475 | return NULL; |
154a1ee5 TG |
476 | } |
477 | } | |
478 | ||
a4551119 TG |
479 | /* The segment and section names are both missing - don't make them |
480 | into dots. */ | |
481 | if (dot && dot == name) | |
482 | return NULL; | |
483 | ||
484 | /* Just duplicate the name into both segment and section. */ | |
154a1ee5 TG |
485 | if (len > 16) |
486 | len = 16; | |
487 | memcpy (section->segname, name, len); | |
488 | section->segname[len] = 0; | |
489 | memcpy (section->sectname, name, len); | |
490 | section->sectname[len] = 0; | |
a4551119 | 491 | return NULL; |
3af9a47b NC |
492 | } |
493 | ||
b2b62060 TG |
494 | /* Return the size of an entry for section SEC. |
495 | Must be called only for symbol pointer section and symbol stubs | |
496 | sections. */ | |
497 | ||
c5012cd8 | 498 | unsigned int |
b2b62060 TG |
499 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
500 | { | |
501 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
502 | { | |
503 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
504 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
505 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
506 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
507 | return sec->reserved2; | |
508 | default: | |
509 | BFD_FAIL (); | |
510 | return 0; | |
511 | } | |
512 | } | |
513 | ||
514 | /* Return the number of indirect symbols for a section. | |
515 | Must be called only for symbol pointer section and symbol stubs | |
516 | sections. */ | |
517 | ||
c5012cd8 | 518 | unsigned int |
b2b62060 TG |
519 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
520 | { | |
521 | unsigned int elsz; | |
522 | ||
523 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); | |
524 | if (elsz == 0) | |
525 | return 0; | |
526 | else | |
527 | return sec->size / elsz; | |
528 | } | |
529 | ||
530 | ||
3af9a47b NC |
531 | /* Copy any private info we understand from the input symbol |
532 | to the output symbol. */ | |
533 | ||
154a1ee5 | 534 | bfd_boolean |
116c20d2 NC |
535 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
536 | asymbol *isymbol ATTRIBUTE_UNUSED, | |
537 | bfd *obfd ATTRIBUTE_UNUSED, | |
538 | asymbol *osymbol ATTRIBUTE_UNUSED) | |
3af9a47b | 539 | { |
b34976b6 | 540 | return TRUE; |
3af9a47b NC |
541 | } |
542 | ||
543 | /* Copy any private info we understand from the input section | |
544 | to the output section. */ | |
545 | ||
154a1ee5 | 546 | bfd_boolean |
116c20d2 | 547 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, |
a4551119 | 548 | asection *isection, |
116c20d2 | 549 | bfd *obfd ATTRIBUTE_UNUSED, |
a4551119 TG |
550 | asection *osection) |
551 | { | |
552 | if (osection->used_by_bfd == NULL) | |
553 | osection->used_by_bfd = isection->used_by_bfd; | |
554 | else | |
555 | if (isection->used_by_bfd != NULL) | |
556 | memcpy (osection->used_by_bfd, isection->used_by_bfd, | |
557 | sizeof (bfd_mach_o_section)); | |
558 | ||
559 | if (osection->used_by_bfd != NULL) | |
560 | ((bfd_mach_o_section *)osection->used_by_bfd)->bfdsection = osection; | |
561 | ||
b34976b6 | 562 | return TRUE; |
3af9a47b NC |
563 | } |
564 | ||
565 | /* Copy any private info we understand from the input bfd | |
566 | to the output bfd. */ | |
567 | ||
154a1ee5 | 568 | bfd_boolean |
116c20d2 | 569 | bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 570 | { |
154a1ee5 TG |
571 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
572 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
573 | return TRUE; | |
574 | ||
3af9a47b NC |
575 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
576 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
577 | ||
154a1ee5 TG |
578 | /* FIXME: copy commands. */ |
579 | ||
b34976b6 | 580 | return TRUE; |
3af9a47b NC |
581 | } |
582 | ||
0c9ef0f0 TG |
583 | /* This allows us to set up to 32 bits of flags (unless we invent some |
584 | fiendish scheme to subdivide). For now, we'll just set the file flags | |
585 | without error checking - just overwrite. */ | |
586 | ||
587 | bfd_boolean | |
588 | bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags) | |
589 | { | |
590 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
591 | ||
592 | if (!mdata) | |
593 | return FALSE; | |
594 | ||
595 | mdata->header.flags = flags; | |
596 | return TRUE; | |
597 | } | |
598 | ||
046b007d | 599 | /* Count the total number of symbols. */ |
154a1ee5 | 600 | |
3af9a47b | 601 | static long |
116c20d2 | 602 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 603 | { |
046b007d | 604 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 605 | |
046b007d TG |
606 | if (mdata->symtab == NULL) |
607 | return 0; | |
608 | return mdata->symtab->nsyms; | |
3af9a47b NC |
609 | } |
610 | ||
154a1ee5 | 611 | long |
116c20d2 | 612 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
613 | { |
614 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
615 | ||
3af9a47b NC |
616 | return ((nsyms + 1) * sizeof (asymbol *)); |
617 | } | |
618 | ||
154a1ee5 | 619 | long |
116c20d2 | 620 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 621 | { |
046b007d | 622 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 623 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
624 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
625 | unsigned long j; | |
3af9a47b NC |
626 | |
627 | if (nsyms < 0) | |
628 | return nsyms; | |
629 | ||
092d27ff TG |
630 | if (nsyms == 0) |
631 | { | |
632 | /* Do not try to read symbols if there are none. */ | |
633 | alocation[0] = NULL; | |
634 | return 0; | |
635 | } | |
636 | ||
afbb9e17 | 637 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 638 | { |
afbb9e17 TG |
639 | (*_bfd_error_handler) |
640 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); | |
046b007d TG |
641 | return 0; |
642 | } | |
3af9a47b | 643 | |
046b007d | 644 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 645 | |
046b007d TG |
646 | for (j = 0; j < sym->nsyms; j++) |
647 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 648 | |
046b007d | 649 | alocation[j] = NULL; |
a95a4550 | 650 | |
3af9a47b NC |
651 | return nsyms; |
652 | } | |
653 | ||
aeefa1c9 TG |
654 | /* Create synthetic symbols for indirect symbols. */ |
655 | ||
b2b62060 TG |
656 | long |
657 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
658 | long symcount ATTRIBUTE_UNUSED, | |
659 | asymbol **syms ATTRIBUTE_UNUSED, | |
660 | long dynsymcount ATTRIBUTE_UNUSED, | |
661 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
662 | asymbol **ret) | |
663 | { | |
664 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
665 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
666 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
667 | asymbol *s; | |
668 | unsigned long count, i, j, n; | |
669 | size_t size; | |
670 | char *names; | |
671 | char *nul_name; | |
672 | ||
673 | *ret = NULL; | |
674 | ||
aeefa1c9 | 675 | /* Stop now if no symbols or no indirect symbols. */ |
b2b62060 TG |
676 | if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL) |
677 | return 0; | |
678 | ||
679 | if (dysymtab->nindirectsyms == 0) | |
680 | return 0; | |
681 | ||
aeefa1c9 TG |
682 | /* We need to allocate a bfd symbol for every indirect symbol and to |
683 | allocate the memory for its name. */ | |
b2b62060 TG |
684 | count = dysymtab->nindirectsyms; |
685 | size = count * sizeof (asymbol) + 1; | |
686 | ||
687 | for (j = 0; j < count; j++) | |
688 | { | |
689 | unsigned int isym = dysymtab->indirect_syms[j]; | |
aeefa1c9 TG |
690 | |
691 | /* Some indirect symbols are anonymous. */ | |
b2b62060 TG |
692 | if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name) |
693 | size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub"); | |
694 | } | |
695 | ||
696 | s = *ret = (asymbol *) bfd_malloc (size); | |
697 | if (s == NULL) | |
698 | return -1; | |
699 | names = (char *) (s + count); | |
700 | nul_name = names; | |
701 | *names++ = 0; | |
702 | ||
703 | n = 0; | |
704 | for (i = 0; i < mdata->nsects; i++) | |
705 | { | |
706 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 707 | unsigned int first, last; |
b2b62060 TG |
708 | bfd_vma addr; |
709 | bfd_vma entry_size; | |
710 | ||
711 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
712 | { | |
713 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
714 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
715 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
aeefa1c9 | 716 | /* Only these sections have indirect symbols. */ |
b2b62060 TG |
717 | first = sec->reserved1; |
718 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
719 | addr = sec->addr; | |
720 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
721 | for (j = first; j < last; j++) | |
722 | { | |
723 | unsigned int isym = dysymtab->indirect_syms[j]; | |
724 | ||
725 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; | |
726 | s->section = sec->bfdsection; | |
727 | s->value = addr - sec->addr; | |
728 | s->udata.p = NULL; | |
729 | ||
730 | if (isym < symtab->nsyms | |
731 | && symtab->symbols[isym].symbol.name) | |
732 | { | |
733 | const char *sym = symtab->symbols[isym].symbol.name; | |
734 | size_t len; | |
735 | ||
736 | s->name = names; | |
737 | len = strlen (sym); | |
738 | memcpy (names, sym, len); | |
739 | names += len; | |
740 | memcpy (names, "$stub", sizeof ("$stub")); | |
741 | names += sizeof ("$stub"); | |
742 | } | |
743 | else | |
744 | s->name = nul_name; | |
745 | ||
746 | addr += entry_size; | |
747 | s++; | |
748 | n++; | |
749 | } | |
750 | break; | |
751 | default: | |
752 | break; | |
753 | } | |
754 | } | |
755 | ||
756 | return n; | |
757 | } | |
758 | ||
154a1ee5 | 759 | void |
116c20d2 NC |
760 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
761 | asymbol *symbol, | |
762 | symbol_info *ret) | |
3af9a47b NC |
763 | { |
764 | bfd_symbol_info (symbol, ret); | |
765 | } | |
766 | ||
154a1ee5 | 767 | void |
116c20d2 | 768 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 769 | void * afile, |
116c20d2 NC |
770 | asymbol *symbol, |
771 | bfd_print_symbol_type how) | |
3af9a47b NC |
772 | { |
773 | FILE *file = (FILE *) afile; | |
15e1c58a | 774 | const char *name; |
92bc0e80 | 775 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
776 | |
777 | switch (how) | |
778 | { | |
779 | case bfd_print_symbol_name: | |
780 | fprintf (file, "%s", symbol->name); | |
781 | break; | |
782 | default: | |
91d6fa6a | 783 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
784 | if (asym->n_type & BFD_MACH_O_N_STAB) |
785 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 786 | else |
92bc0e80 | 787 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
788 | { |
789 | case BFD_MACH_O_N_UNDF: | |
e0ce1005 TG |
790 | if (symbol->value == 0) |
791 | name = "UND"; | |
792 | else | |
793 | name = "COM"; | |
15e1c58a TG |
794 | break; |
795 | case BFD_MACH_O_N_ABS: | |
796 | name = "ABS"; | |
797 | break; | |
798 | case BFD_MACH_O_N_INDR: | |
799 | name = "INDR"; | |
800 | break; | |
801 | case BFD_MACH_O_N_PBUD: | |
802 | name = "PBUD"; | |
803 | break; | |
804 | case BFD_MACH_O_N_SECT: | |
805 | name = "SECT"; | |
806 | break; | |
807 | default: | |
808 | name = "???"; | |
809 | break; | |
810 | } | |
811 | if (name == NULL) | |
812 | name = ""; | |
92bc0e80 TG |
813 | fprintf (file, " %02x %-6s %02x %04x", |
814 | asym->n_type, name, asym->n_sect, asym->n_desc); | |
815 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 | |
816 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 817 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 818 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
819 | } |
820 | } | |
821 | ||
822 | static void | |
116c20d2 | 823 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
0b2de107 | 824 | bfd_mach_o_cpu_subtype msubtype, |
116c20d2 NC |
825 | enum bfd_architecture *type, |
826 | unsigned long *subtype) | |
3af9a47b NC |
827 | { |
828 | *subtype = bfd_arch_unknown; | |
829 | ||
830 | switch (mtype) | |
831 | { | |
0b2de107 TG |
832 | case BFD_MACH_O_CPU_TYPE_VAX: |
833 | *type = bfd_arch_vax; | |
834 | break; | |
835 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
836 | *type = bfd_arch_m68k; | |
837 | break; | |
1e8a024a TG |
838 | case BFD_MACH_O_CPU_TYPE_I386: |
839 | *type = bfd_arch_i386; | |
840 | *subtype = bfd_mach_i386_i386; | |
841 | break; | |
842 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
843 | *type = bfd_arch_i386; | |
844 | *subtype = bfd_mach_x86_64; | |
845 | break; | |
0b2de107 TG |
846 | case BFD_MACH_O_CPU_TYPE_MIPS: |
847 | *type = bfd_arch_mips; | |
848 | break; | |
849 | case BFD_MACH_O_CPU_TYPE_MC98000: | |
850 | *type = bfd_arch_m98k; | |
851 | break; | |
852 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
853 | *type = bfd_arch_hppa; | |
854 | break; | |
855 | case BFD_MACH_O_CPU_TYPE_ARM: | |
856 | *type = bfd_arch_arm; | |
857 | switch (msubtype) | |
858 | { | |
859 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T: | |
860 | *subtype = bfd_mach_arm_4T; | |
861 | break; | |
862 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V6: | |
863 | *subtype = bfd_mach_arm_4T; /* Best fit ? */ | |
864 | break; | |
865 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ: | |
866 | *subtype = bfd_mach_arm_5TE; | |
867 | break; | |
868 | case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE: | |
869 | *subtype = bfd_mach_arm_XScale; | |
870 | break; | |
871 | case BFD_MACH_O_CPU_SUBTYPE_ARM_V7: | |
872 | *subtype = bfd_mach_arm_5TE; /* Best fit ? */ | |
873 | break; | |
874 | case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL: | |
875 | default: | |
876 | break; | |
877 | } | |
878 | break; | |
879 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
880 | *type = bfd_arch_m88k; | |
881 | break; | |
1e8a024a TG |
882 | case BFD_MACH_O_CPU_TYPE_SPARC: |
883 | *type = bfd_arch_sparc; | |
884 | *subtype = bfd_mach_sparc; | |
885 | break; | |
0b2de107 TG |
886 | case BFD_MACH_O_CPU_TYPE_I860: |
887 | *type = bfd_arch_i860; | |
888 | break; | |
889 | case BFD_MACH_O_CPU_TYPE_ALPHA: | |
890 | *type = bfd_arch_alpha; | |
891 | break; | |
1e8a024a TG |
892 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
893 | *type = bfd_arch_powerpc; | |
c2f09c75 | 894 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
895 | break; |
896 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
897 | *type = bfd_arch_powerpc; | |
c2f09c75 | 898 | *subtype = bfd_mach_ppc64; |
1e8a024a | 899 | break; |
3af9a47b | 900 | default: |
1e8a024a TG |
901 | *type = bfd_arch_unknown; |
902 | break; | |
3af9a47b NC |
903 | } |
904 | } | |
a95a4550 | 905 | |
154a1ee5 | 906 | static bfd_boolean |
116c20d2 NC |
907 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
908 | { | |
46d1c23b | 909 | struct mach_o_header_external raw; |
1e8a024a TG |
910 | unsigned int size; |
911 | ||
c2f09c75 | 912 | size = mach_o_wide_p (header) ? |
154a1ee5 | 913 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 914 | |
46d1c23b TG |
915 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
916 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
917 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
918 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
919 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
920 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
921 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 922 | |
c2f09c75 | 923 | if (mach_o_wide_p (header)) |
46d1c23b | 924 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 925 | |
c2f09c75 | 926 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 927 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 928 | return FALSE; |
116c20d2 | 929 | |
154a1ee5 | 930 | return TRUE; |
116c20d2 NC |
931 | } |
932 | ||
933 | static int | |
ab273af8 | 934 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
935 | { |
936 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
937 | unsigned int i; | |
46d1c23b | 938 | struct mach_o_thread_command_external raw; |
92bc0e80 | 939 | unsigned int offset; |
116c20d2 NC |
940 | |
941 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
942 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
943 | ||
944 | offset = 8; | |
116c20d2 NC |
945 | for (i = 0; i < cmd->nflavours; i++) |
946 | { | |
947 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b TG |
948 | BFD_ASSERT (cmd->flavours[i].offset == |
949 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); | |
116c20d2 | 950 | |
46d1c23b TG |
951 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
952 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 953 | |
c2f09c75 | 954 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 955 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
116c20d2 NC |
956 | return -1; |
957 | ||
46d1c23b | 958 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
959 | } |
960 | ||
961 | return 0; | |
962 | } | |
963 | ||
92bc0e80 TG |
964 | long |
965 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
966 | asection *asect) | |
967 | { | |
968 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
969 | } | |
970 | ||
b32e07d7 | 971 | static int |
46d1c23b TG |
972 | bfd_mach_o_canonicalize_one_reloc (bfd *abfd, |
973 | struct mach_o_reloc_info_external *raw, | |
b32e07d7 | 974 | arelent *res, asymbol **syms) |
92bc0e80 | 975 | { |
046b007d | 976 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
92bc0e80 | 977 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
b32e07d7 TG |
978 | bfd_mach_o_reloc_info reloc; |
979 | bfd_vma addr; | |
980 | bfd_vma symnum; | |
981 | asymbol **sym; | |
982 | ||
46d1c23b TG |
983 | addr = bfd_get_32 (abfd, raw->r_address); |
984 | symnum = bfd_get_32 (abfd, raw->r_symbolnum); | |
b32e07d7 TG |
985 | |
986 | if (addr & BFD_MACH_O_SR_SCATTERED) | |
987 | { | |
988 | unsigned int j; | |
989 | ||
990 | /* Scattered relocation. | |
991 | Extract section and offset from r_value. */ | |
992 | res->sym_ptr_ptr = NULL; | |
993 | res->addend = 0; | |
994 | for (j = 0; j < mdata->nsects; j++) | |
995 | { | |
996 | bfd_mach_o_section *sect = mdata->sections[j]; | |
997 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
998 | { | |
999 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
1000 | res->addend = symnum - sect->addr; | |
1001 | break; | |
1002 | } | |
1003 | } | |
1004 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); | |
1005 | reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr); | |
1006 | reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
1007 | reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
1008 | reloc.r_scattered = 1; | |
1009 | } | |
1010 | else | |
1011 | { | |
1012 | unsigned int num = BFD_MACH_O_GET_R_SYMBOLNUM (symnum); | |
1013 | res->addend = 0; | |
1014 | res->address = addr; | |
1015 | if (symnum & BFD_MACH_O_R_EXTERN) | |
06988dfc TG |
1016 | { |
1017 | sym = syms + num; | |
1018 | reloc.r_extern = 1; | |
1019 | } | |
b32e07d7 TG |
1020 | else |
1021 | { | |
1022 | BFD_ASSERT (num != 0); | |
1023 | BFD_ASSERT (num <= mdata->nsects); | |
1024 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1523fa24 TG |
1025 | /* For a symbol defined in section S, the addend (stored in the |
1026 | binary) contains the address of the section. To comply with | |
1027 | bfd conventio, substract the section address. | |
1028 | Use the address from the header, so that the user can modify | |
1029 | the vma of the section. */ | |
1030 | res->addend = -mdata->sections[num - 1]->addr; | |
06988dfc | 1031 | reloc.r_extern = 0; |
b32e07d7 TG |
1032 | } |
1033 | res->sym_ptr_ptr = sym; | |
1034 | reloc.r_type = BFD_MACH_O_GET_R_TYPE (symnum); | |
1035 | reloc.r_length = BFD_MACH_O_GET_R_LENGTH (symnum); | |
1036 | reloc.r_pcrel = (symnum & BFD_MACH_O_R_PCREL) ? 1 : 0; | |
1037 | reloc.r_scattered = 0; | |
1038 | } | |
1039 | ||
1040 | if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc)) | |
1041 | return -1; | |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | static int | |
1046 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
1047 | unsigned long count, | |
1048 | arelent *res, asymbol **syms) | |
1049 | { | |
92bc0e80 | 1050 | unsigned long i; |
46d1c23b | 1051 | struct mach_o_reloc_info_external *native_relocs; |
92bc0e80 TG |
1052 | bfd_size_type native_size; |
1053 | ||
92bc0e80 | 1054 | /* Allocate and read relocs. */ |
b32e07d7 | 1055 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
46d1c23b TG |
1056 | native_relocs = |
1057 | (struct mach_o_reloc_info_external *) bfd_malloc (native_size); | |
92bc0e80 TG |
1058 | if (native_relocs == NULL) |
1059 | return -1; | |
1060 | ||
b32e07d7 | 1061 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
92bc0e80 | 1062 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
b32e07d7 TG |
1063 | goto err; |
1064 | ||
1065 | for (i = 0; i < count; i++) | |
92bc0e80 | 1066 | { |
46d1c23b TG |
1067 | if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i], |
1068 | &res[i], syms) < 0) | |
b32e07d7 | 1069 | goto err; |
92bc0e80 | 1070 | } |
b32e07d7 TG |
1071 | free (native_relocs); |
1072 | return i; | |
1073 | err: | |
1074 | free (native_relocs); | |
1075 | return -1; | |
1076 | } | |
1077 | ||
1078 | long | |
1079 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
1080 | arelent **rels, asymbol **syms) | |
1081 | { | |
1082 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1083 | unsigned long i; | |
1084 | arelent *res; | |
1085 | ||
1086 | if (asect->reloc_count == 0) | |
1087 | return 0; | |
1088 | ||
1089 | /* No need to go further if we don't know how to read relocs. */ | |
1090 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) | |
1091 | return 0; | |
92bc0e80 | 1092 | |
dff55db0 | 1093 | if (asect->relocation == NULL) |
92bc0e80 | 1094 | { |
dff55db0 TG |
1095 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); |
1096 | if (res == NULL) | |
1097 | return -1; | |
1098 | ||
1099 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
1100 | asect->reloc_count, res, syms) < 0) | |
1101 | { | |
1102 | free (res); | |
1103 | return -1; | |
1104 | } | |
1105 | asect->relocation = res; | |
92bc0e80 TG |
1106 | } |
1107 | ||
dff55db0 | 1108 | res = asect->relocation; |
92bc0e80 | 1109 | for (i = 0; i < asect->reloc_count; i++) |
b32e07d7 TG |
1110 | rels[i] = &res[i]; |
1111 | rels[i] = NULL; | |
92bc0e80 | 1112 | |
b32e07d7 TG |
1113 | return i; |
1114 | } | |
92bc0e80 | 1115 | |
b32e07d7 TG |
1116 | long |
1117 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1118 | { | |
1119 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1120 | |
b32e07d7 TG |
1121 | if (mdata->dysymtab == NULL) |
1122 | return 1; | |
dff55db0 | 1123 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1) |
b32e07d7 TG |
1124 | * sizeof (arelent *); |
1125 | } | |
92bc0e80 | 1126 | |
b32e07d7 TG |
1127 | long |
1128 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
1129 | struct bfd_symbol **syms) | |
1130 | { | |
1131 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1132 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1133 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1134 | unsigned long i; | |
1135 | arelent *res; | |
1136 | ||
1137 | if (dysymtab == NULL) | |
1138 | return 0; | |
1139 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1140 | return 0; | |
1141 | ||
1142 | /* No need to go further if we don't know how to read relocs. */ | |
1143 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) | |
1144 | return 0; | |
1145 | ||
dff55db0 | 1146 | if (mdata->dyn_reloc_cache == NULL) |
b32e07d7 | 1147 | { |
dff55db0 TG |
1148 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) |
1149 | * sizeof (arelent)); | |
1150 | if (res == NULL) | |
1151 | return -1; | |
b32e07d7 | 1152 | |
dff55db0 TG |
1153 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
1154 | dysymtab->nextrel, res, syms) < 0) | |
1155 | { | |
1156 | free (res); | |
1157 | return -1; | |
1158 | } | |
1159 | ||
1160 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
1161 | dysymtab->nlocrel, | |
1162 | res + dysymtab->nextrel, syms) < 0) | |
1163 | { | |
1164 | free (res); | |
1165 | return -1; | |
1166 | } | |
1167 | ||
1168 | mdata->dyn_reloc_cache = res; | |
b32e07d7 TG |
1169 | } |
1170 | ||
dff55db0 | 1171 | res = mdata->dyn_reloc_cache; |
b32e07d7 TG |
1172 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
1173 | rels[i] = &res[i]; | |
1174 | rels[i] = NULL; | |
92bc0e80 TG |
1175 | return i; |
1176 | } | |
1177 | ||
1178 | static bfd_boolean | |
ab273af8 | 1179 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1180 | { |
046b007d | 1181 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
92bc0e80 TG |
1182 | unsigned int i; |
1183 | arelent **entries; | |
1184 | asection *sec; | |
1185 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1186 | ||
1187 | sec = section->bfdsection; | |
1188 | if (sec->reloc_count == 0) | |
1189 | return TRUE; | |
1190 | ||
1191 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1192 | return TRUE; | |
1193 | ||
1194 | /* Allocate relocation room. */ | |
1195 | mdata->filelen = FILE_ALIGN(mdata->filelen, 2); | |
1196 | section->nreloc = sec->reloc_count; | |
1197 | sec->rel_filepos = mdata->filelen; | |
1198 | section->reloff = sec->rel_filepos; | |
1199 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
1200 | ||
1201 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) | |
1202 | return FALSE; | |
1203 | ||
1204 | /* Convert and write. */ | |
1205 | entries = section->bfdsection->orelocation; | |
1206 | for (i = 0; i < section->nreloc; i++) | |
1207 | { | |
1208 | arelent *rel = entries[i]; | |
46d1c23b | 1209 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1210 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1211 | ||
1212 | /* Convert relocation to an intermediate representation. */ | |
1213 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
1214 | return FALSE; | |
1215 | ||
1216 | /* Lower the relocation info. */ | |
1217 | if (pinfo->r_scattered) | |
1218 | { | |
1219 | unsigned long v; | |
1220 | ||
1221 | v = BFD_MACH_O_SR_SCATTERED | |
1222 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1223 | | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length) | |
1224 | | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type) | |
1225 | | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address); | |
46d1c23b TG |
1226 | /* Note: scattered relocs have field in reverse order... */ |
1227 | bfd_put_32 (abfd, v, raw.r_address); | |
1228 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
92bc0e80 TG |
1229 | } |
1230 | else | |
1231 | { | |
1232 | unsigned long v; | |
1233 | ||
46d1c23b | 1234 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); |
92bc0e80 TG |
1235 | v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value) |
1236 | | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0) | |
1237 | | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length) | |
1238 | | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0) | |
1239 | | BFD_MACH_O_SET_R_TYPE (pinfo->r_type); | |
46d1c23b | 1240 | bfd_put_32 (abfd, v, raw.r_symbolnum); |
92bc0e80 TG |
1241 | } |
1242 | ||
46d1c23b | 1243 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
92bc0e80 TG |
1244 | != BFD_MACH_O_RELENT_SIZE) |
1245 | return FALSE; | |
1246 | } | |
1247 | return TRUE; | |
1248 | } | |
1249 | ||
116c20d2 | 1250 | static int |
ab273af8 | 1251 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1252 | { |
46d1c23b TG |
1253 | struct mach_o_section_32_external raw; |
1254 | ||
1255 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1256 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1257 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1258 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1259 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1260 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1261 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1262 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1263 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1264 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1265 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1266 | ||
1267 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1268 | != BFD_MACH_O_SECTION_SIZE) |
116c20d2 NC |
1269 | return -1; |
1270 | ||
1271 | return 0; | |
1272 | } | |
1273 | ||
1274 | static int | |
ab273af8 | 1275 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1276 | { |
46d1c23b TG |
1277 | struct mach_o_section_64_external raw; |
1278 | ||
1279 | memcpy (raw.sectname, section->sectname, 16); | |
1280 | memcpy (raw.segname, section->segname, 16); | |
1281 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1282 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1283 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1284 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1285 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1286 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1287 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1288 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1289 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1290 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1291 | ||
1292 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1293 | != BFD_MACH_O_SECTION_64_SIZE) |
116c20d2 NC |
1294 | return -1; |
1295 | ||
1e8a024a TG |
1296 | return 0; |
1297 | } | |
1298 | ||
1299 | static int | |
ab273af8 | 1300 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1301 | { |
46d1c23b | 1302 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1303 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1304 | bfd_mach_o_section *sec; |
1e8a024a | 1305 | |
c2f09c75 TG |
1306 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1307 | ||
f1bde64c TG |
1308 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1309 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
92bc0e80 | 1310 | return -1; |
c2f09c75 | 1311 | |
46d1c23b TG |
1312 | memcpy (raw.segname, seg->segname, 16); |
1313 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1314 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1315 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1316 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1317 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1318 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1319 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1320 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
c2f09c75 | 1321 | |
46d1c23b TG |
1322 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1323 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
c2f09c75 | 1324 | return -1; |
1e8a024a | 1325 | |
f1bde64c TG |
1326 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1327 | if (bfd_mach_o_write_section_32 (abfd, sec)) | |
92bc0e80 | 1328 | return -1; |
1e8a024a | 1329 | |
116c20d2 NC |
1330 | return 0; |
1331 | } | |
1332 | ||
1e8a024a | 1333 | static int |
ab273af8 | 1334 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1335 | { |
46d1c23b | 1336 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1337 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1338 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1339 | |
1340 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1341 | ||
f1bde64c TG |
1342 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1343 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
92bc0e80 | 1344 | return -1; |
c2f09c75 | 1345 | |
46d1c23b TG |
1346 | memcpy (raw.segname, seg->segname, 16); |
1347 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1348 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1349 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1350 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1351 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1352 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1353 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1354 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1355 | ||
1356 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1357 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
c2f09c75 TG |
1358 | return -1; |
1359 | ||
f1bde64c TG |
1360 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1361 | if (bfd_mach_o_write_section_64 (abfd, sec)) | |
92bc0e80 | 1362 | return -1; |
c2f09c75 | 1363 | |
c2f09c75 | 1364 | return 0; |
1e8a024a TG |
1365 | } |
1366 | ||
c2f09c75 | 1367 | static bfd_boolean |
ab273af8 | 1368 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 | 1369 | { |
046b007d | 1370 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1371 | bfd_mach_o_symtab_command *sym = &command->command.symtab; |
116c20d2 | 1372 | unsigned long i; |
c2f09c75 | 1373 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
046b007d | 1374 | unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; |
c2f09c75 TG |
1375 | struct bfd_strtab_hash *strtab; |
1376 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1377 | ||
1378 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
1379 | ||
1380 | /* Write the symbols first. */ | |
92bc0e80 TG |
1381 | mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2); |
1382 | sym->symoff = mdata->filelen; | |
c2f09c75 TG |
1383 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) |
1384 | return FALSE; | |
1385 | ||
1386 | sym->nsyms = bfd_get_symcount (abfd); | |
92bc0e80 | 1387 | mdata->filelen += sym->nsyms * symlen; |
c2f09c75 TG |
1388 | |
1389 | strtab = _bfd_stringtab_init (); | |
1390 | if (strtab == NULL) | |
1391 | return FALSE; | |
116c20d2 | 1392 | |
a4551119 TG |
1393 | if (sym->nsyms > 0) |
1394 | /* Although we don't strictly need to do this, for compatibility with | |
1395 | Darwin system tools, actually output an empty string for the index | |
1396 | 0 entry. */ | |
1397 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
1398 | ||
116c20d2 NC |
1399 | for (i = 0; i < sym->nsyms; i++) |
1400 | { | |
91d6fa6a | 1401 | bfd_size_type str_index; |
92bc0e80 | 1402 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
c2f09c75 | 1403 | |
7f307238 IS |
1404 | /* For a bare indirect symbol, the system tools expect that the symbol |
1405 | value will be the string table offset for its referenced counterpart. | |
1406 | ||
1407 | Normally, indirect syms will not be written this way, but rather as | |
1408 | part of the dysymtab command. | |
1409 | ||
1410 | In either case, correct operation depends on the symbol table being | |
1411 | sorted such that the indirect symbols are at the end (since the | |
1412 | string table index is filled in below). */ | |
1413 | ||
1414 | if (IS_MACHO_INDIRECT (s->n_type)) | |
1415 | /* A pointer to the referenced symbol will be stored in the udata | |
1416 | field. Use that to find the string index. */ | |
1417 | s->symbol.value = | |
1418 | ((bfd_mach_o_asymbol *)s->symbol.udata.p)->symbol.udata.i; | |
1419 | ||
92bc0e80 | 1420 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
7f307238 | 1421 | /* An index of 0 always means the empty string. */ |
91d6fa6a | 1422 | str_index = 0; |
c2f09c75 TG |
1423 | else |
1424 | { | |
91d6fa6a | 1425 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); |
7f307238 IS |
1426 | /* Record the string index. This can be looked up by an indirect sym |
1427 | which retains a pointer to its referenced counterpart, until it is | |
1428 | actually output. */ | |
1429 | if (IS_MACHO_INDIRECT (s->n_type)) | |
1430 | s->symbol.udata.i = str_index; | |
1431 | ||
91d6fa6a | 1432 | if (str_index == (bfd_size_type) -1) |
c2f09c75 TG |
1433 | goto err; |
1434 | } | |
46d1c23b | 1435 | |
c2f09c75 | 1436 | if (wide) |
46d1c23b TG |
1437 | { |
1438 | struct mach_o_nlist_64_external raw; | |
1439 | ||
1440 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
1441 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1442 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1443 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1444 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
1445 | raw.n_value); | |
1446 | ||
1447 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1448 | goto err; | |
1449 | } | |
c2f09c75 | 1450 | else |
46d1c23b TG |
1451 | { |
1452 | struct mach_o_nlist_external raw; | |
116c20d2 | 1453 | |
46d1c23b TG |
1454 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
1455 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1456 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1457 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1458 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
1459 | raw.n_value); | |
1460 | ||
1461 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1462 | goto err; | |
1463 | } | |
116c20d2 | 1464 | } |
c2f09c75 | 1465 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
1466 | sym->stroff = mdata->filelen; |
1467 | mdata->filelen += sym->strsize; | |
116c20d2 | 1468 | |
c2f09c75 TG |
1469 | if (_bfd_stringtab_emit (abfd, strtab) != TRUE) |
1470 | goto err; | |
1471 | _bfd_stringtab_free (strtab); | |
116c20d2 | 1472 | |
c2f09c75 | 1473 | /* The command. */ |
46d1c23b TG |
1474 | { |
1475 | struct mach_o_symtab_command_external raw; | |
116c20d2 | 1476 | |
46d1c23b TG |
1477 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); |
1478 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
1479 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
1480 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
1481 | ||
1482 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1483 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1484 | return FALSE; | |
1485 | } | |
116c20d2 | 1486 | |
c2f09c75 | 1487 | return TRUE; |
116c20d2 | 1488 | |
c2f09c75 TG |
1489 | err: |
1490 | _bfd_stringtab_free (strtab); | |
1491 | return FALSE; | |
116c20d2 NC |
1492 | } |
1493 | ||
7f307238 IS |
1494 | /* Write a dysymtab command. |
1495 | TODO: Possibly coalesce writes of smaller objects. */ | |
1496 | ||
1497 | static bfd_boolean | |
1498 | bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) | |
1499 | { | |
1500 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; | |
1501 | ||
1502 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
1503 | ||
1504 | if (cmd->nmodtab != 0) | |
1505 | { | |
1506 | unsigned int i; | |
1507 | ||
1508 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
1509 | return FALSE; | |
1510 | ||
1511 | for (i = 0; i < cmd->nmodtab; i++) | |
1512 | { | |
1513 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
1514 | unsigned int iinit; | |
1515 | unsigned int ninit; | |
1516 | ||
1517 | iinit = module->iinit & 0xffff; | |
1518 | iinit |= ((module->iterm & 0xffff) << 16); | |
1519 | ||
1520 | ninit = module->ninit & 0xffff; | |
1521 | ninit |= ((module->nterm & 0xffff) << 16); | |
1522 | ||
1523 | if (bfd_mach_o_wide_p (abfd)) | |
1524 | { | |
1525 | struct mach_o_dylib_module_64_external w; | |
1526 | ||
1527 | bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name); | |
1528 | bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym); | |
1529 | bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym); | |
1530 | bfd_h_put_32 (abfd, module->irefsym, &w.irefsym); | |
1531 | bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym); | |
1532 | bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym); | |
1533 | bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym); | |
1534 | bfd_h_put_32 (abfd, module->iextrel, &w.iextrel); | |
1535 | bfd_h_put_32 (abfd, module->nextrel, &w.nextrel); | |
1536 | bfd_h_put_32 (abfd, iinit, &w.iinit_iterm); | |
1537 | bfd_h_put_32 (abfd, ninit, &w.ninit_nterm); | |
1538 | bfd_h_put_64 (abfd, module->objc_module_info_addr, | |
1539 | &w.objc_module_info_addr); | |
1540 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
1541 | &w.objc_module_info_size); | |
1542 | ||
1543 | if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w)) | |
1544 | return FALSE; | |
1545 | } | |
1546 | else | |
1547 | { | |
1548 | struct mach_o_dylib_module_external n; | |
1549 | ||
1550 | bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name); | |
1551 | bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym); | |
1552 | bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym); | |
1553 | bfd_h_put_32 (abfd, module->irefsym, &n.irefsym); | |
1554 | bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym); | |
1555 | bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym); | |
1556 | bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym); | |
1557 | bfd_h_put_32 (abfd, module->iextrel, &n.iextrel); | |
1558 | bfd_h_put_32 (abfd, module->nextrel, &n.nextrel); | |
1559 | bfd_h_put_32 (abfd, iinit, &n.iinit_iterm); | |
1560 | bfd_h_put_32 (abfd, ninit, &n.ninit_nterm); | |
1561 | bfd_h_put_32 (abfd, module->objc_module_info_addr, | |
1562 | &n.objc_module_info_addr); | |
1563 | bfd_h_put_32 (abfd, module->objc_module_info_size, | |
1564 | &n.objc_module_info_size); | |
1565 | ||
1566 | if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n)) | |
1567 | return FALSE; | |
1568 | } | |
1569 | } | |
1570 | } | |
1571 | ||
1572 | if (cmd->ntoc != 0) | |
1573 | { | |
1574 | unsigned int i; | |
1575 | ||
1576 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
1577 | return FALSE; | |
1578 | ||
1579 | for (i = 0; i < cmd->ntoc; i++) | |
1580 | { | |
1581 | struct mach_o_dylib_table_of_contents_external raw; | |
1582 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; | |
1583 | ||
1584 | bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index); | |
1585 | bfd_h_put_32 (abfd, toc->module_index, &raw.module_index); | |
1586 | ||
1587 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1588 | return FALSE; | |
1589 | } | |
1590 | } | |
1591 | ||
1592 | if (cmd->nindirectsyms > 0) | |
1593 | { | |
1594 | unsigned int i; | |
1595 | ||
1596 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
1597 | return FALSE; | |
1598 | ||
1599 | for (i = 0; i < cmd->nindirectsyms; ++i) | |
1600 | { | |
1601 | unsigned char raw[4]; | |
1602 | ||
1603 | bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw); | |
1604 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
1605 | return FALSE; | |
1606 | } | |
1607 | } | |
1608 | ||
1609 | if (cmd->nextrefsyms != 0) | |
1610 | { | |
1611 | unsigned int i; | |
1612 | ||
1613 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
1614 | return FALSE; | |
1615 | ||
1616 | for (i = 0; i < cmd->nextrefsyms; i++) | |
1617 | { | |
1618 | unsigned long v; | |
1619 | unsigned char raw[4]; | |
1620 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; | |
1621 | ||
1622 | /* Fields isym and flags are written as bit-fields, thus we need | |
1623 | a specific processing for endianness. */ | |
1624 | ||
1625 | if (bfd_big_endian (abfd)) | |
1626 | { | |
1627 | v = ((ref->isym & 0xffffff) << 8); | |
1628 | v |= ref->flags & 0xff; | |
1629 | } | |
1630 | else | |
1631 | { | |
1632 | v = ref->isym & 0xffffff; | |
1633 | v |= ((ref->flags & 0xff) << 24); | |
1634 | } | |
1635 | ||
1636 | bfd_h_put_32 (abfd, v, raw); | |
1637 | if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw)) | |
1638 | return FALSE; | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | /* The command. */ | |
1643 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0) | |
1644 | return FALSE; | |
1645 | else | |
1646 | { | |
1647 | struct mach_o_dysymtab_command_external raw; | |
1648 | ||
1649 | bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym); | |
1650 | bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym); | |
1651 | bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym); | |
1652 | bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym); | |
1653 | bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym); | |
1654 | bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym); | |
1655 | bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff); | |
1656 | bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc); | |
1657 | bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff); | |
1658 | bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab); | |
1659 | bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff); | |
1660 | bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms); | |
1661 | bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff); | |
1662 | bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms); | |
1663 | bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff); | |
1664 | bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel); | |
1665 | bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff); | |
1666 | bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel); | |
1667 | ||
1668 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1669 | return FALSE; | |
1670 | } | |
1671 | ||
1672 | return TRUE; | |
1673 | } | |
1674 | ||
1675 | static unsigned | |
68588f95 | 1676 | bfd_mach_o_primary_symbol_sort_key (unsigned type) |
7f307238 | 1677 | { |
68588f95 IS |
1678 | unsigned mtyp = type & BFD_MACH_O_N_TYPE; |
1679 | ||
1680 | /* Just leave debug symbols where they are (pretend they are local, and | |
1681 | then they will just be sorted on position). */ | |
1682 | if (type & BFD_MACH_O_N_STAB) | |
1683 | return 0; | |
1684 | ||
1685 | /* Sort indirects to last. */ | |
1686 | if (mtyp == BFD_MACH_O_N_INDR) | |
7f307238 IS |
1687 | return 3; |
1688 | ||
1689 | /* Local (we should never see an undefined local AFAICT). */ | |
68588f95 | 1690 | if (! (type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) |
7f307238 IS |
1691 | return 0; |
1692 | ||
1693 | /* Common symbols look like undefined externs. */ | |
68588f95 | 1694 | if (mtyp == BFD_MACH_O_N_UNDF) |
7f307238 IS |
1695 | return 2; |
1696 | ||
1697 | /* A defined symbol that's not indirect or extern. */ | |
1698 | return 1; | |
1699 | } | |
1700 | ||
1701 | static int | |
1702 | bfd_mach_o_cf_symbols (const void *a, const void *b) | |
1703 | { | |
1704 | bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a; | |
1705 | bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; | |
1706 | unsigned int soa, sob; | |
1707 | ||
68588f95 IS |
1708 | soa = bfd_mach_o_primary_symbol_sort_key (sa->n_type); |
1709 | sob = bfd_mach_o_primary_symbol_sort_key (sb->n_type); | |
7f307238 IS |
1710 | if (soa < sob) |
1711 | return -1; | |
1712 | ||
1713 | if (soa > sob) | |
1714 | return 1; | |
1715 | ||
68588f95 | 1716 | /* If it's local or stab, just preserve the input order. */ |
7f307238 IS |
1717 | if (soa == 0) |
1718 | { | |
1719 | if (sa->symbol.udata.i < sb->symbol.udata.i) | |
1720 | return -1; | |
1721 | if (sa->symbol.udata.i > sb->symbol.udata.i) | |
1722 | return 1; | |
1723 | return 0; | |
1724 | } | |
1725 | ||
1726 | /* Unless it's an indirect the second sort key is name. */ | |
1727 | if (soa < 3) | |
1728 | return strcmp (sa->symbol.name, sb->symbol.name); | |
1729 | ||
1730 | /* Here be indirect symbols, which have different sort rules. */ | |
1731 | ||
1732 | /* Next sort key for indirect, is the section index. */ | |
1733 | if (sa->n_sect < sb->n_sect) | |
1734 | return -1; | |
1735 | ||
1736 | if (sa->n_sect > sb->n_sect) | |
1737 | return 1; | |
1738 | ||
1739 | /* Last sort key is the order of definition - which should be in line with | |
1740 | the value, since a stub size of 0 is meaninglesss. */ | |
1741 | ||
1742 | if (sa->symbol.value < sb->symbol.value) | |
1743 | return -1; | |
1744 | ||
1745 | if (sa->symbol.value > sb->symbol.value) | |
1746 | return 1; | |
1747 | ||
1748 | /* In the final analysis, this is probably an error ... but leave it alone | |
1749 | for now. */ | |
1750 | return 0; | |
1751 | } | |
1752 | ||
1753 | /* When this is finished, return the number of non-indirect symbols. */ | |
1754 | ||
1755 | static unsigned int | |
1756 | bfd_mach_o_sort_symbol_table (asymbol **symbols, unsigned int nin) | |
1757 | { | |
1758 | qsort (symbols, (size_t) nin, sizeof (void *), bfd_mach_o_cf_symbols); | |
1759 | ||
1760 | /* Find the last non-indirect symbol. | |
1761 | There must be at least one non-indirect symbol otherwise there's | |
1762 | nothing for the indirect(s) to refer to. */ | |
1763 | do | |
1764 | { | |
1765 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[nin - 1]; | |
1766 | if (IS_MACHO_INDIRECT (s->n_type)) | |
1767 | nin--; | |
1768 | else | |
1769 | break; | |
1770 | } while (nin - 1 > 0); | |
1771 | return nin; | |
1772 | } | |
1773 | ||
1774 | /* Process the symbols. | |
1775 | ||
1776 | This should be OK for single-module files - but it is not likely to work | |
1777 | for multi-module shared libraries. | |
1778 | ||
1779 | (a) If the application has not filled in the relevant mach-o fields, make | |
1780 | an estimate. | |
1781 | ||
1782 | (b) Order them, like this: | |
1783 | ( i) local. | |
1784 | (unsorted) | |
1785 | ( ii) external defined | |
1786 | (by name) | |
1787 | (iii) external undefined | |
1788 | (by name) | |
1789 | ( iv) common | |
1790 | (by name) | |
1791 | ( v) indirect | |
1792 | (by section) | |
1793 | (by position within section). | |
1794 | ||
1795 | (c) Indirect symbols are moved to the end of the list. */ | |
92bc0e80 TG |
1796 | |
1797 | static bfd_boolean | |
7f307238 | 1798 | bfd_mach_o_mangle_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) |
92bc0e80 TG |
1799 | { |
1800 | unsigned long i; | |
1801 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1802 | ||
7f307238 IS |
1803 | if (symbols == NULL || bfd_get_symcount (abfd) == 0) |
1804 | return TRUE; | |
1805 | ||
92bc0e80 TG |
1806 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
1807 | { | |
1808 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1809 | ||
1810 | if (s->n_type == BFD_MACH_O_N_UNDF && !(s->symbol.flags & BSF_DEBUGGING)) | |
1811 | { | |
1812 | /* As genuine Mach-O symbols type shouldn't be N_UNDF (undefined | |
1813 | symbols should be N_UNDEF | N_EXT), we suppose the back-end | |
1814 | values haven't been set. */ | |
1815 | if (s->symbol.section == bfd_abs_section_ptr) | |
1816 | s->n_type = BFD_MACH_O_N_ABS; | |
1817 | else if (s->symbol.section == bfd_und_section_ptr) | |
1818 | { | |
1819 | s->n_type = BFD_MACH_O_N_UNDF; | |
1820 | if (s->symbol.flags & BSF_WEAK) | |
1821 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
7f307238 IS |
1822 | /* mach-o automatically makes undefined symbols extern. */ |
1823 | s->n_type |= BFD_MACH_O_N_EXT; | |
92bc0e80 TG |
1824 | } |
1825 | else if (s->symbol.section == bfd_com_section_ptr) | |
1826 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; | |
1827 | else | |
1828 | s->n_type = BFD_MACH_O_N_SECT; | |
1829 | ||
1830 | if (s->symbol.flags & BSF_GLOBAL) | |
1831 | s->n_type |= BFD_MACH_O_N_EXT; | |
1832 | } | |
1833 | ||
7f307238 | 1834 | /* Put the section index in, where required. */ |
68588f95 | 1835 | if ((s->symbol.section != bfd_abs_section_ptr |
92bc0e80 TG |
1836 | && s->symbol.section != bfd_und_section_ptr |
1837 | && s->symbol.section != bfd_com_section_ptr) | |
68588f95 IS |
1838 | || ((s->n_type & BFD_MACH_O_N_STAB) != 0 |
1839 | && s->symbol.name == NULL)) | |
1840 | s->n_sect = s->symbol.section->target_index; | |
92bc0e80 | 1841 | |
7f307238 IS |
1842 | /* Unless we're looking at an indirect sym, note the input ordering. |
1843 | We use this to keep local symbols ordered as per the input. */ | |
f2b324f1 | 1844 | if (! IS_MACHO_INDIRECT (s->n_type)) |
7f307238 IS |
1845 | s->symbol.udata.i = i; |
1846 | } | |
1847 | ||
1848 | /* Sort the symbols and determine how many will remain in the main symbol | |
1849 | table, and how many will be emitted as indirect (assuming that we will | |
1850 | be emitting a dysymtab). Renumber the sorted symbols so that the right | |
1851 | index will be found during indirection. */ | |
1852 | i = bfd_mach_o_sort_symbol_table (symbols, bfd_get_symcount (abfd)); | |
1853 | if (bfd_mach_o_should_emit_dysymtab ()) | |
1854 | { | |
1855 | /* Point at the first indirect symbol. */ | |
1856 | if (i < bfd_get_symcount (abfd)) | |
1857 | { | |
1858 | mdata->indirect_syms = &symbols[i]; | |
1859 | mdata->nindirect = bfd_get_symcount (abfd) - i; | |
1860 | /* This is, essentially, local to the output section of mach-o, | |
1861 | and therefore should be safe. */ | |
1862 | abfd->symcount = i; | |
1863 | } | |
1864 | ||
1865 | /* Now setup the counts for each type of symbol. */ | |
1866 | for (i = 0; i < bfd_get_symcount (abfd); ++i) | |
1867 | { | |
1868 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1869 | s->symbol.udata.i = i; /* renumber. */ | |
1870 | if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)) | |
1871 | break; | |
1872 | } | |
1873 | mdata->nlocal = i; | |
1874 | for (; i < bfd_get_symcount (abfd); ++i) | |
1875 | { | |
1876 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1877 | s->symbol.udata.i = i; /* renumber. */ | |
1878 | if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF) | |
1879 | break; | |
1880 | } | |
1881 | mdata->ndefext = i - mdata->nlocal; | |
1882 | mdata->nundefext = bfd_get_symcount (abfd) | |
1883 | - mdata->ndefext | |
1884 | - mdata->nlocal; | |
1885 | for (; i < bfd_get_symcount (abfd); ++i) | |
1886 | { | |
1887 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1888 | s->symbol.udata.i = i; /* renumber. */ | |
1889 | } | |
1890 | } | |
1891 | ||
1892 | return TRUE; | |
1893 | } | |
1894 | ||
1895 | /* We build a flat table of sections, which can be re-ordered if necessary. | |
1896 | Fill in the section number and other mach-o-specific data. */ | |
1897 | ||
1898 | static bfd_boolean | |
1899 | bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata) | |
1900 | { | |
1901 | asection *sec; | |
1902 | unsigned target_index; | |
1903 | unsigned nsect; | |
1904 | ||
1905 | nsect = bfd_count_sections (abfd); | |
1906 | ||
1907 | /* Don't do it if it's already set - assume the application knows what it's | |
1908 | doing. */ | |
1909 | if (mdata->nsects == nsect | |
1910 | && (mdata->nsects == 0 || mdata->sections != NULL)) | |
1911 | return TRUE; | |
1912 | ||
1913 | mdata->nsects = nsect; | |
1914 | mdata->sections = bfd_alloc (abfd, | |
1915 | mdata->nsects * sizeof (bfd_mach_o_section *)); | |
1916 | if (mdata->sections == NULL) | |
1917 | return FALSE; | |
1918 | ||
1919 | /* We need to check that this can be done... */ | |
1920 | if (nsect > 255) | |
1921 | (*_bfd_error_handler) (_("mach-o: there are too many sections (%d)" | |
1922 | " maximum is 255,\n"), nsect); | |
1923 | ||
1924 | /* Create Mach-O sections. | |
1925 | Section type, attribute and align should have been set when the | |
1926 | section was created - either read in or specified. */ | |
1927 | target_index = 0; | |
1928 | for (sec = abfd->sections; sec; sec = sec->next) | |
1929 | { | |
1930 | unsigned bfd_align = bfd_get_section_alignment (abfd, sec); | |
1931 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); | |
1932 | ||
1933 | mdata->sections[target_index] = msect; | |
1934 | ||
1935 | msect->addr = bfd_get_section_vma (abfd, sec); | |
1936 | msect->size = bfd_get_section_size (sec); | |
1937 | ||
1938 | /* Use the largest alignment set, in case it was bumped after the | |
1939 | section was created. */ | |
1940 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
1941 | ||
1942 | msect->offset = 0; | |
1943 | sec->target_index = ++target_index; | |
92bc0e80 | 1944 | } |
7f307238 | 1945 | |
92bc0e80 TG |
1946 | return TRUE; |
1947 | } | |
1948 | ||
154a1ee5 | 1949 | bfd_boolean |
116c20d2 | 1950 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b NC |
1951 | { |
1952 | unsigned int i; | |
046b007d | 1953 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 1954 | |
7f307238 | 1955 | /* Make the commands, if not already present. */ |
92bc0e80 TG |
1956 | if (mdata->header.ncmds == 0) |
1957 | if (!bfd_mach_o_build_commands (abfd)) | |
1958 | return FALSE; | |
1959 | ||
154a1ee5 | 1960 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 1961 | return FALSE; |
3af9a47b NC |
1962 | |
1963 | for (i = 0; i < mdata->header.ncmds; i++) | |
1964 | { | |
46d1c23b | 1965 | struct mach_o_load_command_external raw; |
3af9a47b NC |
1966 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
1967 | unsigned long typeflag; | |
1968 | ||
154a1ee5 | 1969 | typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 1970 | |
46d1c23b TG |
1971 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
1972 | bfd_h_put_32 (abfd, cur->len, raw.cmdsize); | |
3af9a47b | 1973 | |
c2f09c75 | 1974 | if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0 |
46d1c23b | 1975 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 1976 | return FALSE; |
3af9a47b NC |
1977 | |
1978 | switch (cur->type) | |
1979 | { | |
1980 | case BFD_MACH_O_LC_SEGMENT: | |
ab273af8 | 1981 | if (bfd_mach_o_write_segment_32 (abfd, cur) != 0) |
1e8a024a TG |
1982 | return FALSE; |
1983 | break; | |
1984 | case BFD_MACH_O_LC_SEGMENT_64: | |
ab273af8 | 1985 | if (bfd_mach_o_write_segment_64 (abfd, cur) != 0) |
b34976b6 | 1986 | return FALSE; |
3af9a47b NC |
1987 | break; |
1988 | case BFD_MACH_O_LC_SYMTAB: | |
ab273af8 | 1989 | if (!bfd_mach_o_write_symtab (abfd, cur)) |
b34976b6 | 1990 | return FALSE; |
3af9a47b | 1991 | break; |
7f307238 IS |
1992 | case BFD_MACH_O_LC_DYSYMTAB: |
1993 | if (!bfd_mach_o_write_dysymtab (abfd, cur)) | |
1994 | return FALSE; | |
1995 | break; | |
3af9a47b NC |
1996 | case BFD_MACH_O_LC_SYMSEG: |
1997 | break; | |
1998 | case BFD_MACH_O_LC_THREAD: | |
1999 | case BFD_MACH_O_LC_UNIXTHREAD: | |
ab273af8 | 2000 | if (bfd_mach_o_write_thread (abfd, cur) != 0) |
b34976b6 | 2001 | return FALSE; |
3af9a47b NC |
2002 | break; |
2003 | case BFD_MACH_O_LC_LOADFVMLIB: | |
2004 | case BFD_MACH_O_LC_IDFVMLIB: | |
2005 | case BFD_MACH_O_LC_IDENT: | |
2006 | case BFD_MACH_O_LC_FVMFILE: | |
2007 | case BFD_MACH_O_LC_PREPAGE: | |
3af9a47b NC |
2008 | case BFD_MACH_O_LC_LOAD_DYLIB: |
2009 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
2010 | case BFD_MACH_O_LC_ID_DYLIB: | |
046b007d | 2011 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 2012 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
3af9a47b NC |
2013 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
2014 | case BFD_MACH_O_LC_ID_DYLINKER: | |
2015 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
2016 | case BFD_MACH_O_LC_ROUTINES: | |
2017 | case BFD_MACH_O_LC_SUB_FRAMEWORK: | |
2018 | break; | |
2019 | default: | |
4a97a0e5 AM |
2020 | (*_bfd_error_handler) (_("unable to write unknown load command 0x%lx"), |
2021 | (unsigned long) cur->type); | |
b34976b6 | 2022 | return FALSE; |
3af9a47b NC |
2023 | } |
2024 | } | |
2025 | ||
b34976b6 | 2026 | return TRUE; |
3af9a47b NC |
2027 | } |
2028 | ||
f1bde64c TG |
2029 | static void |
2030 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
2031 | asection *sec) | |
2032 | { | |
2033 | bfd_mach_o_section *s = (bfd_mach_o_section *)sec->used_by_bfd; | |
2034 | if (seg->sect_head == NULL) | |
2035 | seg->sect_head = s; | |
2036 | else | |
2037 | seg->sect_tail->next = s; | |
2038 | seg->sect_tail = s; | |
2039 | } | |
2040 | ||
2041 | /* Create section Mach-O flags from BFD flags. */ | |
2042 | ||
2043 | static void | |
2044 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
2045 | { | |
2046 | flagword bfd_flags; | |
2047 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
2048 | ||
2049 | /* Create default flags. */ | |
2050 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
2051 | if ((bfd_flags & SEC_CODE) == SEC_CODE) | |
2052 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
2053 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
2054 | | BFD_MACH_O_S_REGULAR; | |
2055 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
2056 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
2057 | else if (bfd_flags & SEC_DEBUGGING) | |
2058 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
2059 | else | |
2060 | s->flags = BFD_MACH_O_S_REGULAR; | |
2061 | } | |
2062 | ||
7f307238 IS |
2063 | /* Count the number of sections in the list for the segment named. |
2064 | ||
2065 | The special case of NULL or "" for the segment name is valid for | |
2066 | an MH_OBJECT file and means 'all sections available'. | |
2067 | ||
2068 | Requires that the sections table in mdata be filled in. | |
2069 | ||
2070 | Returns the number of sections (0 is valid). | |
2071 | Any number > 255 signals an invalid section count, although we will, | |
2072 | perhaps, allow the file to be written (in line with Darwin tools up | |
2073 | to XCode 4). | |
2074 | ||
2075 | A section count of (unsigned long) -1 signals a definite error. */ | |
2076 | ||
2077 | static unsigned long | |
2078 | bfd_mach_o_count_sections_for_seg (const char *segment, | |
2079 | bfd_mach_o_data_struct *mdata) | |
2080 | { | |
2081 | unsigned i,j; | |
2082 | if (mdata == NULL || mdata->sections == NULL) | |
2083 | return (unsigned long) -1; | |
2084 | ||
2085 | /* The MH_OBJECT case, all sections are considered; Although nsects is | |
2086 | is an unsigned long, the maximum valid section count is 255 and this | |
2087 | will have been checked already by mangle_sections. */ | |
2088 | if (segment == NULL || segment[0] == '\0') | |
2089 | return mdata->nsects; | |
2090 | ||
2091 | /* Count the number of sections we see in this segment. */ | |
2092 | j = 0; | |
2093 | for (i = 0; i < mdata->nsects; ++i) | |
2094 | { | |
2095 | bfd_mach_o_section *s = mdata->sections[i]; | |
2096 | if (strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
2097 | j++; | |
2098 | } | |
2099 | return j; | |
2100 | } | |
2101 | ||
2102 | static bfd_boolean | |
2103 | bfd_mach_o_build_seg_command (const char *segment, | |
2104 | bfd_mach_o_data_struct *mdata, | |
2105 | bfd_mach_o_segment_command *seg) | |
2106 | { | |
2107 | unsigned i; | |
2108 | int is_mho = (segment == NULL || segment[0] == '\0'); | |
2109 | ||
2110 | /* Fill segment command. */ | |
2111 | if (is_mho) | |
2112 | memset (seg->segname, 0, sizeof (seg->segname)); | |
2113 | else | |
2114 | strncpy (seg->segname, segment, sizeof (seg->segname)); | |
2115 | ||
2116 | /* TODO: fix this up for non-MH_OBJECT cases. */ | |
2117 | seg->vmaddr = 0; | |
2118 | ||
2119 | seg->fileoff = mdata->filelen; | |
2120 | seg->filesize = 0; | |
2121 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
2122 | | BFD_MACH_O_PROT_EXECUTE; | |
2123 | seg->initprot = seg->maxprot; | |
2124 | seg->flags = 0; | |
2125 | seg->sect_head = NULL; | |
2126 | seg->sect_tail = NULL; | |
2127 | ||
2128 | /* Append sections to the segment. */ | |
2129 | ||
2130 | for (i = 0; i < mdata->nsects; ++i) | |
2131 | { | |
2132 | bfd_mach_o_section *s = mdata->sections[i]; | |
2133 | asection *sec = s->bfdsection; | |
2134 | ||
2135 | /* If we're not making an MH_OBJECT, check whether this section is from | |
2136 | our segment, and skip if not. Otherwise, just add all sections. */ | |
2137 | if (! is_mho | |
2138 | && strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) != 0) | |
2139 | continue; | |
2140 | ||
2141 | bfd_mach_o_append_section_to_segment (seg, sec); | |
2142 | ||
2143 | if (s->size == 0) | |
2144 | s->offset = 0; | |
2145 | else | |
2146 | { | |
2147 | mdata->filelen = FILE_ALIGN (mdata->filelen, s->align); | |
2148 | s->offset = mdata->filelen; | |
2149 | } | |
2150 | ||
2151 | sec->filepos = s->offset; | |
2152 | ||
2153 | mdata->filelen += s->size; | |
2154 | } | |
2155 | ||
2156 | seg->filesize = mdata->filelen - seg->fileoff; | |
2157 | seg->vmsize = seg->filesize; | |
2158 | ||
2159 | return TRUE; | |
2160 | } | |
2161 | ||
2162 | static bfd_boolean | |
2163 | bfd_mach_o_build_dysymtab_command (bfd *abfd, | |
2164 | bfd_mach_o_data_struct *mdata, | |
2165 | bfd_mach_o_load_command *cmd) | |
2166 | { | |
2167 | bfd_mach_o_dysymtab_command *dsym = &cmd->command.dysymtab; | |
2168 | ||
2169 | /* TODO: | |
2170 | We are not going to try and fill these in yet and, moreover, we are | |
2171 | going to bail if they are already set. */ | |
2172 | if (dsym->nmodtab != 0 | |
2173 | || dsym->ntoc != 0 | |
2174 | || dsym->nextrefsyms != 0) | |
2175 | { | |
2176 | (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet" | |
2177 | " implemented for dysymtab commands.")); | |
2178 | return FALSE; | |
2179 | } | |
2180 | ||
2181 | dsym->ilocalsym = 0; | |
2182 | dsym->nlocalsym = mdata->nlocal; | |
2183 | dsym->iextdefsym = dsym->nlocalsym; | |
2184 | dsym->nextdefsym = mdata->ndefext; | |
2185 | dsym->iundefsym = dsym->nextdefsym + dsym->iextdefsym; | |
2186 | dsym->nundefsym = mdata->nundefext; | |
2187 | ||
2188 | if (mdata->nindirect > 0) | |
2189 | { | |
2190 | unsigned i, sect; | |
2191 | ||
2192 | mdata->filelen = FILE_ALIGN (mdata->filelen, 2); | |
2193 | dsym->indirectsymoff = mdata->filelen; | |
2194 | mdata->filelen += mdata->nindirect * 4; | |
2195 | ||
2196 | dsym->indirect_syms = bfd_zalloc (abfd, mdata->nindirect * 4); | |
2197 | if (dsym->indirect_syms == NULL) | |
2198 | return FALSE; | |
2199 | dsym->nindirectsyms = mdata->nindirect; | |
2200 | ||
2201 | /* So fill in the indices, and point the section reserved1 fields | |
2202 | at the right one. */ | |
2203 | sect = (unsigned) -1; | |
2204 | for (i = 0; i < mdata->nindirect; ++i) | |
2205 | { | |
2206 | bfd_mach_o_asymbol *s = | |
2207 | (bfd_mach_o_asymbol *) mdata->indirect_syms[i]; | |
2208 | /* Lookup the index of the referenced symbol. */ | |
2209 | dsym->indirect_syms[i] = | |
2210 | ((bfd_mach_o_asymbol *) s->symbol.udata.p)->symbol.udata.i; | |
2211 | if (s->n_sect != sect) | |
2212 | { | |
2213 | /* Mach-o sections are 1-based, but the section table | |
2214 | is 0-based. */ | |
2215 | bfd_mach_o_section *sc = mdata->sections[s->n_sect-1]; | |
2216 | sc->reserved1 = i; | |
2217 | sect = s->n_sect; | |
2218 | } | |
2219 | } | |
2220 | } | |
2221 | ||
2222 | return TRUE; | |
2223 | } | |
2224 | ||
2225 | /* Build Mach-O load commands (currently assuming an MH_OBJECT file). | |
2226 | TODO: Other file formats, rebuilding symtab/dysymtab commands for strip | |
2227 | and copy functionality. */ | |
154a1ee5 TG |
2228 | |
2229 | bfd_boolean | |
2230 | bfd_mach_o_build_commands (bfd *abfd) | |
2231 | { | |
046b007d | 2232 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 2233 | unsigned int wide = mach_o_wide_p (&mdata->header); |
154a1ee5 | 2234 | bfd_mach_o_segment_command *seg; |
c2f09c75 TG |
2235 | bfd_mach_o_load_command *cmd; |
2236 | bfd_mach_o_load_command *symtab_cmd; | |
7f307238 | 2237 | unsigned symcind; |
154a1ee5 | 2238 | |
7f307238 | 2239 | /* Return now if commands are already present. */ |
154a1ee5 TG |
2240 | if (mdata->header.ncmds) |
2241 | return FALSE; | |
2242 | ||
7f307238 | 2243 | /* Fill in the file type, if not already set. */ |
154a1ee5 | 2244 | |
7f307238 | 2245 | if (mdata->header.filetype == 0) |
154a1ee5 | 2246 | { |
7f307238 IS |
2247 | if (abfd->flags & EXEC_P) |
2248 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; | |
2249 | else if (abfd->flags & DYNAMIC) | |
2250 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; | |
2251 | else | |
2252 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; | |
154a1ee5 | 2253 | } |
7f307238 IS |
2254 | |
2255 | /* If hasn't already been done, flatten sections list, and sort | |
2256 | if/when required. Must be done before the symbol table is adjusted, | |
2257 | since that depends on properly numbered sections. */ | |
2258 | if (mdata->nsects == 0 || mdata->sections == NULL) | |
2259 | if (! bfd_mach_o_mangle_sections (abfd, mdata)) | |
2260 | return FALSE; | |
2261 | ||
2262 | /* Order the symbol table, fill-in/check mach-o specific fields and | |
2263 | partition out any indirect symbols. */ | |
2264 | if (!bfd_mach_o_mangle_symbols (abfd, mdata)) | |
2265 | return FALSE; | |
2266 | ||
2267 | /* It's valid to have a file with only absolute symbols... */ | |
2268 | if (mdata->nsects > 0) | |
154a1ee5 | 2269 | { |
7f307238 IS |
2270 | mdata->header.ncmds = 1; |
2271 | symcind = 1; | |
154a1ee5 | 2272 | } |
7f307238 IS |
2273 | else |
2274 | symcind = 0; | |
154a1ee5 | 2275 | |
7f307238 IS |
2276 | /* It's OK to have a file with only section statements. */ |
2277 | if (bfd_get_symcount (abfd) > 0) | |
2278 | mdata->header.ncmds += 1; | |
c2f09c75 | 2279 | |
7f307238 IS |
2280 | /* Very simple version (only really applicable to MH_OBJECTs): |
2281 | a command (segment) to contain all the sections, | |
2282 | a command for the symbol table | |
2283 | a n (optional) command for the dysymtab. | |
154a1ee5 | 2284 | |
7f307238 | 2285 | ??? maybe we should assert that this is an MH_OBJECT? */ |
c2f09c75 | 2286 | |
7f307238 IS |
2287 | if (bfd_mach_o_should_emit_dysymtab () |
2288 | && bfd_get_symcount (abfd) > 0) | |
2289 | mdata->header.ncmds += 1; | |
f1bde64c | 2290 | |
7f307238 IS |
2291 | /* A bit weird, but looks like no content; |
2292 | as -n empty.s -o empty.o */ | |
2293 | if (mdata->header.ncmds == 0) | |
2294 | return TRUE; | |
f1bde64c | 2295 | |
7f307238 IS |
2296 | mdata->commands = bfd_zalloc (abfd, mdata->header.ncmds |
2297 | * sizeof (bfd_mach_o_load_command)); | |
2298 | if (mdata->commands == NULL) | |
2299 | return FALSE; | |
2300 | ||
2301 | if (mdata->nsects > 0) | |
2302 | { | |
2303 | cmd = &mdata->commands[0]; | |
2304 | seg = &cmd->command.segment; | |
2305 | ||
2306 | /* Count the segctions in the special blank segment used for MH_OBJECT. */ | |
2307 | seg->nsects = bfd_mach_o_count_sections_for_seg (NULL, mdata); | |
2308 | if (seg->nsects == (unsigned long) -1) | |
2309 | return FALSE; | |
2310 | ||
2311 | /* Init segment command. */ | |
2312 | if (wide) | |
2313 | { | |
2314 | cmd->type = BFD_MACH_O_LC_SEGMENT_64; | |
2315 | cmd->offset = BFD_MACH_O_HEADER_64_SIZE; | |
2316 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
2317 | + BFD_MACH_O_SECTION_64_SIZE * seg->nsects; | |
2318 | } | |
92bc0e80 | 2319 | else |
7f307238 IS |
2320 | { |
2321 | cmd->type = BFD_MACH_O_LC_SEGMENT; | |
2322 | cmd->offset = BFD_MACH_O_HEADER_SIZE; | |
2323 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
2324 | + BFD_MACH_O_SECTION_SIZE * seg->nsects; | |
2325 | } | |
2326 | cmd->type_required = FALSE; | |
2327 | mdata->header.sizeofcmds = cmd->len; | |
2328 | mdata->filelen = cmd->offset + cmd->len; | |
2329 | } | |
f1bde64c | 2330 | |
7f307238 IS |
2331 | if (bfd_get_symcount (abfd) > 0) |
2332 | { | |
2333 | /* Init symtab command. */ | |
2334 | symtab_cmd = &mdata->commands[symcind]; | |
2335 | ||
2336 | symtab_cmd->type = BFD_MACH_O_LC_SYMTAB; | |
2337 | if (symcind > 0) | |
2338 | symtab_cmd->offset = mdata->commands[0].offset | |
2339 | + mdata->commands[0].len; | |
2340 | else | |
2341 | symtab_cmd->offset = 0; | |
2342 | symtab_cmd->len = 6 * 4; | |
2343 | symtab_cmd->type_required = FALSE; | |
2344 | ||
2345 | mdata->header.sizeofcmds += symtab_cmd->len; | |
2346 | mdata->filelen += symtab_cmd->len; | |
2347 | } | |
154a1ee5 | 2348 | |
7f307238 IS |
2349 | /* If required, setup symtab command. */ |
2350 | if (bfd_mach_o_should_emit_dysymtab () | |
2351 | && bfd_get_symcount (abfd) > 0) | |
2352 | { | |
2353 | cmd = &mdata->commands[symcind+1]; | |
2354 | cmd->type = BFD_MACH_O_LC_DYSYMTAB; | |
2355 | cmd->offset = symtab_cmd->offset + symtab_cmd->len; | |
2356 | cmd->type_required = FALSE; | |
2357 | cmd->len = 18 * 4 + BFD_MACH_O_LC_SIZE; | |
2358 | ||
2359 | mdata->header.sizeofcmds += cmd->len; | |
2360 | mdata->filelen += cmd->len; | |
154a1ee5 | 2361 | } |
154a1ee5 | 2362 | |
7f307238 IS |
2363 | /* So, now we have sized the commands and the filelen set to that. |
2364 | Now we can build the segment command and set the section file offsets. */ | |
2365 | if (mdata->nsects > 0 | |
2366 | && ! bfd_mach_o_build_seg_command (NULL, mdata, seg)) | |
2367 | return FALSE; | |
2368 | ||
2369 | /* If we're doing a dysymtab, cmd points to its load command. */ | |
2370 | if (bfd_mach_o_should_emit_dysymtab () | |
2371 | && bfd_get_symcount (abfd) > 0 | |
2372 | && ! bfd_mach_o_build_dysymtab_command (abfd, mdata, | |
2373 | &mdata->commands[symcind+1])) | |
2374 | return FALSE; | |
2375 | ||
2376 | /* The symtab command is filled in when the symtab is written. */ | |
154a1ee5 TG |
2377 | return TRUE; |
2378 | } | |
2379 | ||
2380 | /* Set the contents of a section. */ | |
2381 | ||
2382 | bfd_boolean | |
2383 | bfd_mach_o_set_section_contents (bfd *abfd, | |
2384 | asection *section, | |
2385 | const void * location, | |
2386 | file_ptr offset, | |
2387 | bfd_size_type count) | |
2388 | { | |
2389 | file_ptr pos; | |
2390 | ||
7f307238 IS |
2391 | /* Trying to write the first section contents will trigger the creation of |
2392 | the load commands if they are not already present. */ | |
154a1ee5 TG |
2393 | if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd)) |
2394 | return FALSE; | |
2395 | ||
2396 | if (count == 0) | |
2397 | return TRUE; | |
2398 | ||
2399 | pos = section->filepos + offset; | |
2400 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
2401 | || bfd_bwrite (location, count, abfd) != count) | |
2402 | return FALSE; | |
2403 | ||
2404 | return TRUE; | |
2405 | } | |
2406 | ||
2407 | int | |
116c20d2 | 2408 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 2409 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
2410 | { |
2411 | return 0; | |
2412 | } | |
2413 | ||
2414 | /* Make an empty symbol. This is required only because | |
2415 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
2416 | ||
154a1ee5 | 2417 | asymbol * |
116c20d2 | 2418 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 2419 | { |
d3ce72d0 NC |
2420 | asymbol *new_symbol; |
2421 | ||
2422 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
2423 | if (new_symbol == NULL) | |
2424 | return new_symbol; | |
2425 | new_symbol->the_bfd = abfd; | |
2426 | new_symbol->udata.i = 0; | |
2427 | return new_symbol; | |
3af9a47b NC |
2428 | } |
2429 | ||
154a1ee5 | 2430 | static bfd_boolean |
116c20d2 | 2431 | bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header) |
3af9a47b | 2432 | { |
46d1c23b | 2433 | struct mach_o_header_external raw; |
1e8a024a | 2434 | unsigned int size; |
edeb6e24 | 2435 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 2436 | |
1e8a024a | 2437 | /* Just read the magic number. */ |
c2f09c75 | 2438 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 2439 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 2440 | return FALSE; |
3af9a47b | 2441 | |
46d1c23b | 2442 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
2443 | { |
2444 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 2445 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 2446 | header->version = 1; |
3af9a47b NC |
2447 | get32 = bfd_getb32; |
2448 | } | |
46d1c23b | 2449 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 2450 | { |
a95a4550 | 2451 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 2452 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
2453 | header->version = 1; |
2454 | get32 = bfd_getl32; | |
2455 | } | |
46d1c23b | 2456 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
2457 | { |
2458 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 2459 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
2460 | header->version = 2; |
2461 | get32 = bfd_getb32; | |
2462 | } | |
46d1c23b | 2463 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
2464 | { |
2465 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 2466 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 2467 | header->version = 2; |
3af9a47b NC |
2468 | get32 = bfd_getl32; |
2469 | } | |
2470 | else | |
2471 | { | |
2472 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 2473 | return FALSE; |
3af9a47b | 2474 | } |
a95a4550 | 2475 | |
1e8a024a | 2476 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 2477 | size = mach_o_wide_p (header) ? |
154a1ee5 | 2478 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 2479 | |
c2f09c75 | 2480 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 2481 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 2482 | return FALSE; |
1e8a024a | 2483 | |
46d1c23b TG |
2484 | header->cputype = (*get32) (raw.cputype); |
2485 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
2486 | header->filetype = (*get32) (raw.filetype); | |
2487 | header->ncmds = (*get32) (raw.ncmds); | |
2488 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
2489 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 2490 | |
c2f09c75 | 2491 | if (mach_o_wide_p (header)) |
46d1c23b | 2492 | header->reserved = (*get32) (raw.reserved); |
1e8a024a | 2493 | |
154a1ee5 | 2494 | return TRUE; |
3af9a47b NC |
2495 | } |
2496 | ||
f1bde64c TG |
2497 | bfd_boolean |
2498 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
2499 | { | |
2500 | bfd_mach_o_section *s; | |
a4551119 | 2501 | unsigned bfdalign = bfd_get_section_alignment (abfd, sec); |
f1bde64c TG |
2502 | |
2503 | s = bfd_mach_o_get_mach_o_section (sec); | |
2504 | if (s == NULL) | |
2505 | { | |
2506 | flagword bfd_flags; | |
a4551119 | 2507 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
2508 | |
2509 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
2510 | if (s == NULL) | |
2511 | return FALSE; | |
2512 | sec->used_by_bfd = s; | |
2513 | s->bfdsection = sec; | |
2514 | ||
a4551119 TG |
2515 | /* Create the Darwin seg/sect name pair from the bfd name. |
2516 | If this is a canonical name for which a specific paiting exists | |
2517 | there will also be defined flags, type, attribute and alignment | |
2518 | values. */ | |
2519 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
2520 | if (xlat != NULL) | |
2521 | { | |
2522 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
2523 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign | |
2524 | : bfdalign; | |
2525 | bfd_set_section_alignment (abfd, sec, s->align); | |
2526 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
2527 | if (bfd_flags == SEC_NO_FLAGS) | |
2528 | bfd_set_section_flags (abfd, sec, xlat->bfd_flags); | |
2529 | } | |
f1bde64c | 2530 | else |
a4551119 TG |
2531 | /* Create default flags. */ |
2532 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
2533 | } |
2534 | ||
2535 | return _bfd_generic_new_section_hook (abfd, sec); | |
2536 | } | |
2537 | ||
2538 | static void | |
2539 | bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec, | |
2540 | unsigned long prot) | |
3af9a47b | 2541 | { |
117ed4f8 | 2542 | flagword flags; |
f1bde64c | 2543 | bfd_mach_o_section *section; |
3af9a47b | 2544 | |
f1bde64c TG |
2545 | flags = bfd_get_section_flags (abfd, sec); |
2546 | section = bfd_mach_o_get_mach_o_section (sec); | |
3af9a47b | 2547 | |
a4551119 TG |
2548 | /* TODO: see if we should use the xlat system for doing this by |
2549 | preference and fall back to this for unknown sections. */ | |
2550 | ||
8462aec7 | 2551 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 2552 | { |
8462aec7 TG |
2553 | /* Try to guess flags. */ |
2554 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
2555 | flags = SEC_DEBUGGING; | |
2556 | else | |
2557 | { | |
2558 | flags = SEC_ALLOC; | |
2559 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
2560 | != BFD_MACH_O_S_ZEROFILL) | |
2561 | { | |
2562 | flags |= SEC_LOAD; | |
2563 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
2564 | flags |= SEC_CODE; | |
2565 | if (prot & BFD_MACH_O_PROT_WRITE) | |
2566 | flags |= SEC_DATA; | |
2567 | else if (prot & BFD_MACH_O_PROT_READ) | |
2568 | flags |= SEC_READONLY; | |
2569 | } | |
2570 | } | |
ef17cb22 | 2571 | } |
15e1c58a TG |
2572 | else |
2573 | { | |
8462aec7 TG |
2574 | if ((flags & SEC_DEBUGGING) == 0) |
2575 | flags |= SEC_ALLOC; | |
15e1c58a | 2576 | } |
8462aec7 TG |
2577 | |
2578 | if (section->offset != 0) | |
2579 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
2580 | if (section->nreloc != 0) |
2581 | flags |= SEC_RELOC; | |
2582 | ||
f1bde64c TG |
2583 | bfd_set_section_flags (abfd, sec, flags); |
2584 | ||
2585 | sec->vma = section->addr; | |
2586 | sec->lma = section->addr; | |
2587 | sec->size = section->size; | |
2588 | sec->filepos = section->offset; | |
2589 | sec->alignment_power = section->align; | |
2590 | sec->segment_mark = 0; | |
2591 | sec->reloc_count = section->nreloc; | |
2592 | sec->rel_filepos = section->reloff; | |
2593 | } | |
2594 | ||
2595 | static asection * | |
2596 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
2597 | const unsigned char *segname, | |
2598 | const unsigned char *sectname) | |
2599 | { | |
2600 | const char *sname; | |
2601 | flagword flags; | |
a95a4550 | 2602 | |
f1bde64c TG |
2603 | bfd_mach_o_convert_section_name_to_bfd |
2604 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
2605 | if (sname == NULL) | |
2606 | return NULL; | |
3af9a47b | 2607 | |
f1bde64c | 2608 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
2609 | } |
2610 | ||
f1bde64c | 2611 | static asection * |
ab273af8 | 2612 | bfd_mach_o_read_section_32 (bfd *abfd, |
ab273af8 TG |
2613 | unsigned int offset, |
2614 | unsigned long prot) | |
3af9a47b | 2615 | { |
46d1c23b | 2616 | struct mach_o_section_32_external raw; |
f1bde64c TG |
2617 | asection *sec; |
2618 | bfd_mach_o_section *section; | |
3af9a47b | 2619 | |
c2f09c75 | 2620 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
46d1c23b | 2621 | || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
c2f09c75 | 2622 | != BFD_MACH_O_SECTION_SIZE)) |
f1bde64c | 2623 | return NULL; |
a95a4550 | 2624 | |
5a5cbf72 | 2625 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
2626 | if (sec == NULL) |
2627 | return NULL; | |
2628 | ||
2629 | section = bfd_mach_o_get_mach_o_section (sec); | |
2630 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
2631 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
2632 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 2633 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
2634 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
2635 | section->size = bfd_h_get_32 (abfd, raw.size); | |
2636 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
2637 | section->align = bfd_h_get_32 (abfd, raw.align); | |
2638 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); | |
2639 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
2640 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
2641 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
2642 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 2643 | section->reserved3 = 0; |
1e8a024a | 2644 | |
f1bde64c | 2645 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
1e8a024a | 2646 | |
f1bde64c | 2647 | return sec; |
1e8a024a TG |
2648 | } |
2649 | ||
f1bde64c | 2650 | static asection * |
ab273af8 | 2651 | bfd_mach_o_read_section_64 (bfd *abfd, |
ab273af8 TG |
2652 | unsigned int offset, |
2653 | unsigned long prot) | |
1e8a024a | 2654 | { |
46d1c23b | 2655 | struct mach_o_section_64_external raw; |
f1bde64c TG |
2656 | asection *sec; |
2657 | bfd_mach_o_section *section; | |
1e8a024a | 2658 | |
c2f09c75 | 2659 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
46d1c23b | 2660 | || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
c2f09c75 | 2661 | != BFD_MACH_O_SECTION_64_SIZE)) |
f1bde64c TG |
2662 | return NULL; |
2663 | ||
5a5cbf72 | 2664 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
2665 | if (sec == NULL) |
2666 | return NULL; | |
1e8a024a | 2667 | |
f1bde64c TG |
2668 | section = bfd_mach_o_get_mach_o_section (sec); |
2669 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
2670 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
2671 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 2672 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
2673 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
2674 | section->size = bfd_h_get_64 (abfd, raw.size); | |
2675 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
2676 | section->align = bfd_h_get_32 (abfd, raw.align); | |
2677 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); | |
2678 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
2679 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
2680 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
2681 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
2682 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 2683 | |
f1bde64c | 2684 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
3af9a47b | 2685 | |
f1bde64c | 2686 | return sec; |
3af9a47b NC |
2687 | } |
2688 | ||
f1bde64c | 2689 | static asection * |
ab273af8 | 2690 | bfd_mach_o_read_section (bfd *abfd, |
ab273af8 TG |
2691 | unsigned int offset, |
2692 | unsigned long prot, | |
2693 | unsigned int wide) | |
1e8a024a TG |
2694 | { |
2695 | if (wide) | |
f1bde64c | 2696 | return bfd_mach_o_read_section_64 (abfd, offset, prot); |
1e8a024a | 2697 | else |
f1bde64c | 2698 | return bfd_mach_o_read_section_32 (abfd, offset, prot); |
1e8a024a TG |
2699 | } |
2700 | ||
afbb9e17 | 2701 | static bfd_boolean |
ab273af8 TG |
2702 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
2703 | bfd_mach_o_symtab_command *sym, | |
2704 | bfd_mach_o_asymbol *s, | |
2705 | unsigned long i) | |
3af9a47b | 2706 | { |
046b007d | 2707 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 2708 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
2709 | unsigned int symwidth = |
2710 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 2711 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 2712 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
2713 | unsigned char type = -1; |
2714 | unsigned char section = -1; | |
2715 | short desc = -1; | |
1e8a024a | 2716 | symvalue value = -1; |
3af9a47b NC |
2717 | unsigned long stroff = -1; |
2718 | unsigned int symtype = -1; | |
2719 | ||
2720 | BFD_ASSERT (sym->strtab != NULL); | |
2721 | ||
c2f09c75 | 2722 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 2723 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 2724 | { |
46d1c23b TG |
2725 | (*_bfd_error_handler) |
2726 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"), | |
2727 | symwidth, (unsigned long) symoff); | |
afbb9e17 | 2728 | return FALSE; |
3af9a47b NC |
2729 | } |
2730 | ||
46d1c23b TG |
2731 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
2732 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 2733 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
2734 | section = bfd_h_get_8 (abfd, raw.n_sect); |
2735 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 2736 | if (wide) |
46d1c23b | 2737 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 2738 | else |
46d1c23b | 2739 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
2740 | |
2741 | if (stroff >= sym->strsize) | |
2742 | { | |
46d1c23b TG |
2743 | (*_bfd_error_handler) |
2744 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"), | |
2745 | (unsigned long) stroff, | |
2746 | (unsigned long) sym->strsize); | |
afbb9e17 | 2747 | return FALSE; |
3af9a47b NC |
2748 | } |
2749 | ||
92bc0e80 TG |
2750 | s->symbol.the_bfd = abfd; |
2751 | s->symbol.name = sym->strtab + stroff; | |
2752 | s->symbol.value = value; | |
2753 | s->symbol.flags = 0x0; | |
2754 | s->symbol.udata.i = 0; | |
2755 | s->n_type = type; | |
2756 | s->n_sect = section; | |
2757 | s->n_desc = desc; | |
3af9a47b NC |
2758 | |
2759 | if (type & BFD_MACH_O_N_STAB) | |
2760 | { | |
92bc0e80 TG |
2761 | s->symbol.flags |= BSF_DEBUGGING; |
2762 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
2763 | switch (type) |
2764 | { | |
2765 | case N_FUN: | |
2766 | case N_STSYM: | |
2767 | case N_LCSYM: | |
2768 | case N_BNSYM: | |
2769 | case N_SLINE: | |
2770 | case N_ENSYM: | |
2771 | case N_ECOMM: | |
2772 | case N_ECOML: | |
2773 | case N_GSYM: | |
2774 | if ((section > 0) && (section <= mdata->nsects)) | |
2775 | { | |
92bc0e80 TG |
2776 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
2777 | s->symbol.value = | |
2778 | s->symbol.value - mdata->sections[section - 1]->addr; | |
15e1c58a TG |
2779 | } |
2780 | break; | |
2781 | } | |
3af9a47b NC |
2782 | } |
2783 | else | |
2784 | { | |
2785 | if (type & BFD_MACH_O_N_PEXT) | |
92bc0e80 | 2786 | s->symbol.flags |= BSF_GLOBAL; |
c2f09c75 | 2787 | |
3af9a47b | 2788 | if (type & BFD_MACH_O_N_EXT) |
92bc0e80 | 2789 | s->symbol.flags |= BSF_GLOBAL; |
15e1c58a TG |
2790 | |
2791 | if (!(type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))) | |
92bc0e80 | 2792 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
2793 | |
2794 | switch (symtype) | |
2795 | { | |
2796 | case BFD_MACH_O_N_UNDF: | |
c2f09c75 | 2797 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
92bc0e80 | 2798 | && s->symbol.value != 0) |
c2f09c75 TG |
2799 | { |
2800 | /* A common symbol. */ | |
92bc0e80 TG |
2801 | s->symbol.section = bfd_com_section_ptr; |
2802 | s->symbol.flags = BSF_NO_FLAGS; | |
c2f09c75 TG |
2803 | } |
2804 | else | |
92bc0e80 TG |
2805 | { |
2806 | s->symbol.section = bfd_und_section_ptr; | |
2807 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
2808 | s->symbol.flags |= BSF_WEAK; | |
2809 | } | |
3af9a47b NC |
2810 | break; |
2811 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 2812 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
2813 | break; |
2814 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 2815 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
2816 | break; |
2817 | case BFD_MACH_O_N_SECT: | |
2818 | if ((section > 0) && (section <= mdata->nsects)) | |
2819 | { | |
92bc0e80 TG |
2820 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
2821 | s->symbol.value = | |
2822 | s->symbol.value - mdata->sections[section - 1]->addr; | |
3af9a47b NC |
2823 | } |
2824 | else | |
2825 | { | |
2826 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
2827 | if (section != 0) | |
2828 | { | |
4a97a0e5 AM |
2829 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
2830 | "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"), | |
2831 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 2832 | } |
92bc0e80 | 2833 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
2834 | } |
2835 | break; | |
2836 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
2837 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
2838 | won't be followed by the referenced one. This looks harmless | |
2839 | unless we start using the linker. */ | |
2840 | s->symbol.flags |= BSF_INDIRECT; | |
2841 | s->symbol.section = bfd_ind_section_ptr; | |
2842 | s->symbol.value = 0; | |
3af9a47b NC |
2843 | break; |
2844 | default: | |
4a97a0e5 AM |
2845 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
2846 | "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"), | |
2847 | s->symbol.name, symtype); | |
92bc0e80 | 2848 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
2849 | break; |
2850 | } | |
2851 | } | |
2852 | ||
afbb9e17 | 2853 | return TRUE; |
3af9a47b NC |
2854 | } |
2855 | ||
c5012cd8 | 2856 | bfd_boolean |
ab273af8 | 2857 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 2858 | { |
046b007d TG |
2859 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2860 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
2861 | ||
2862 | /* Fail if there is no symtab. */ | |
2863 | if (sym == NULL) | |
afbb9e17 | 2864 | return FALSE; |
046b007d TG |
2865 | |
2866 | /* Success if already loaded. */ | |
2867 | if (sym->strtab) | |
afbb9e17 | 2868 | return TRUE; |
3af9a47b NC |
2869 | |
2870 | if (abfd->flags & BFD_IN_MEMORY) | |
2871 | { | |
2872 | struct bfd_in_memory *b; | |
2873 | ||
2874 | b = (struct bfd_in_memory *) abfd->iostream; | |
2875 | ||
2876 | if ((sym->stroff + sym->strsize) > b->size) | |
2877 | { | |
2878 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 2879 | return FALSE; |
3af9a47b | 2880 | } |
f075ee0c | 2881 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 2882 | } |
046b007d | 2883 | else |
3af9a47b | 2884 | { |
046b007d TG |
2885 | sym->strtab = bfd_alloc (abfd, sym->strsize); |
2886 | if (sym->strtab == NULL) | |
afbb9e17 | 2887 | return FALSE; |
046b007d TG |
2888 | |
2889 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 | |
afbb9e17 | 2890 | || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize) |
046b007d TG |
2891 | { |
2892 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 2893 | return FALSE; |
046b007d | 2894 | } |
3af9a47b NC |
2895 | } |
2896 | ||
afbb9e17 | 2897 | return TRUE; |
3af9a47b NC |
2898 | } |
2899 | ||
c5012cd8 | 2900 | bfd_boolean |
ab273af8 | 2901 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 2902 | { |
046b007d TG |
2903 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2904 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 2905 | unsigned long i; |
3af9a47b | 2906 | |
092d27ff TG |
2907 | if (sym == NULL || sym->symbols) |
2908 | { | |
2909 | /* Return now if there are no symbols or if already loaded. */ | |
afbb9e17 | 2910 | return TRUE; |
092d27ff | 2911 | } |
046b007d | 2912 | |
92bc0e80 | 2913 | sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol)); |
3af9a47b NC |
2914 | |
2915 | if (sym->symbols == NULL) | |
2916 | { | |
4a97a0e5 | 2917 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols")); |
afbb9e17 | 2918 | return FALSE; |
3af9a47b | 2919 | } |
a95a4550 | 2920 | |
afbb9e17 TG |
2921 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
2922 | return FALSE; | |
3af9a47b NC |
2923 | |
2924 | for (i = 0; i < sym->nsyms; i++) | |
2925 | { | |
afbb9e17 TG |
2926 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
2927 | return FALSE; | |
3af9a47b | 2928 | } |
a95a4550 | 2929 | |
afbb9e17 | 2930 | return TRUE; |
3af9a47b NC |
2931 | } |
2932 | ||
2933 | static const char * | |
116c20d2 | 2934 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
2935 | { |
2936 | switch ((int) flavour) | |
2937 | { | |
15e1c58a TG |
2938 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
2939 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
2940 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
2941 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
2942 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
2943 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
2944 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
2945 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
2946 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
2947 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
2948 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
2949 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 2950 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
2951 | default: return "UNKNOWN"; |
2952 | } | |
2953 | } | |
2954 | ||
2955 | static const char * | |
116c20d2 | 2956 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
2957 | { |
2958 | switch ((int) flavour) | |
2959 | { | |
b32e07d7 TG |
2960 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
2961 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
2962 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
2963 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
2964 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
2965 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
2966 | default: return "UNKNOWN"; |
2967 | } | |
2968 | } | |
2969 | ||
2970 | static int | |
ab273af8 | 2971 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
2972 | { |
2973 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 2974 | struct mach_o_str_command_external raw; |
3af9a47b | 2975 | unsigned int nameoff; |
3af9a47b NC |
2976 | |
2977 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER) | |
2978 | || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)); | |
2979 | ||
46d1c23b TG |
2980 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2981 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b NC |
2982 | return -1; |
2983 | ||
46d1c23b | 2984 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3af9a47b NC |
2985 | |
2986 | cmd->name_offset = command->offset + nameoff; | |
2987 | cmd->name_len = command->len - nameoff; | |
b32e07d7 TG |
2988 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
2989 | if (cmd->name_str == NULL) | |
3af9a47b | 2990 | return -1; |
b32e07d7 TG |
2991 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
2992 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) | |
3af9a47b | 2993 | return -1; |
3af9a47b NC |
2994 | return 0; |
2995 | } | |
2996 | ||
2997 | static int | |
ab273af8 | 2998 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
2999 | { |
3000 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
46d1c23b | 3001 | struct mach_o_dylib_command_external raw; |
3af9a47b | 3002 | unsigned int nameoff; |
3af9a47b | 3003 | |
046b007d TG |
3004 | switch (command->type) |
3005 | { | |
3006 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
046b007d | 3007 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 3008 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 3009 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 3010 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
3011 | break; |
3012 | default: | |
b32e07d7 TG |
3013 | BFD_FAIL (); |
3014 | return -1; | |
046b007d | 3015 | } |
3af9a47b | 3016 | |
46d1c23b TG |
3017 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3018 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b NC |
3019 | return -1; |
3020 | ||
46d1c23b TG |
3021 | nameoff = bfd_h_get_32 (abfd, raw.name); |
3022 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); | |
3023 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
3024 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
3025 | |
3026 | cmd->name_offset = command->offset + nameoff; | |
3027 | cmd->name_len = command->len - nameoff; | |
b32e07d7 TG |
3028 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
3029 | if (cmd->name_str == NULL) | |
3af9a47b | 3030 | return -1; |
b32e07d7 TG |
3031 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
3032 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) | |
3af9a47b | 3033 | return -1; |
3af9a47b NC |
3034 | return 0; |
3035 | } | |
3036 | ||
3037 | static int | |
ab273af8 TG |
3038 | bfd_mach_o_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED, |
3039 | bfd_mach_o_load_command *command ATTRIBUTE_UNUSED) | |
3af9a47b NC |
3040 | { |
3041 | /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */ | |
3042 | ||
3043 | BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB); | |
3044 | return 0; | |
3045 | } | |
3046 | ||
9f4a5bd1 TG |
3047 | static int |
3048 | bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command) | |
3049 | { | |
3050 | bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib; | |
3051 | struct mach_o_fvmlib_command_external raw; | |
3052 | unsigned int nameoff; | |
3053 | ||
3054 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3055 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3056 | return -1; | |
3057 | ||
3058 | nameoff = bfd_h_get_32 (abfd, raw.name); | |
3059 | fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version); | |
3060 | fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr); | |
3061 | ||
3062 | fvm->name_offset = command->offset + nameoff; | |
3063 | fvm->name_len = command->len - nameoff; | |
3064 | fvm->name_str = bfd_alloc (abfd, fvm->name_len); | |
3065 | if (fvm->name_str == NULL) | |
3066 | return -1; | |
3067 | if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0 | |
3068 | || bfd_bread (fvm->name_str, fvm->name_len, abfd) != fvm->name_len) | |
3069 | return -1; | |
3070 | return 0; | |
3071 | } | |
3072 | ||
3af9a47b | 3073 | static int |
ab273af8 | 3074 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3075 | { |
b32e07d7 | 3076 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 3077 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 3078 | unsigned int offset; |
3af9a47b NC |
3079 | unsigned int nflavours; |
3080 | unsigned int i; | |
3081 | ||
3082 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
3083 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
3084 | ||
b32e07d7 | 3085 | /* Count the number of threads. */ |
3af9a47b NC |
3086 | offset = 8; |
3087 | nflavours = 0; | |
3088 | while (offset != command->len) | |
3089 | { | |
46d1c23b TG |
3090 | struct mach_o_thread_command_external raw; |
3091 | ||
3af9a47b NC |
3092 | if (offset >= command->len) |
3093 | return -1; | |
3094 | ||
c2f09c75 | 3095 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 3096 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
3af9a47b NC |
3097 | return -1; |
3098 | ||
46d1c23b | 3099 | offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4; |
3af9a47b NC |
3100 | nflavours++; |
3101 | } | |
3102 | ||
b32e07d7 TG |
3103 | /* Allocate threads. */ |
3104 | cmd->flavours = bfd_alloc | |
3105 | (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)); | |
3af9a47b NC |
3106 | if (cmd->flavours == NULL) |
3107 | return -1; | |
3108 | cmd->nflavours = nflavours; | |
3109 | ||
3110 | offset = 8; | |
3111 | nflavours = 0; | |
3112 | while (offset != command->len) | |
3113 | { | |
46d1c23b TG |
3114 | struct mach_o_thread_command_external raw; |
3115 | ||
3af9a47b NC |
3116 | if (offset >= command->len) |
3117 | return -1; | |
3118 | ||
3119 | if (nflavours >= cmd->nflavours) | |
3120 | return -1; | |
3121 | ||
c2f09c75 | 3122 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 3123 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
3af9a47b NC |
3124 | return -1; |
3125 | ||
46d1c23b TG |
3126 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
3127 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
3128 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
3129 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
3130 | nflavours++; |
3131 | } | |
3132 | ||
3133 | for (i = 0; i < nflavours; i++) | |
3134 | { | |
3135 | asection *bfdsec; | |
3136 | unsigned int snamelen; | |
3137 | char *sname; | |
3138 | const char *flavourstr; | |
3139 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
3140 | unsigned int j = 0; |
3141 | ||
3af9a47b NC |
3142 | switch (mdata->header.cputype) |
3143 | { | |
3144 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 3145 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
3af9a47b NC |
3146 | flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); |
3147 | break; | |
3148 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 3149 | case BFD_MACH_O_CPU_TYPE_X86_64: |
3af9a47b NC |
3150 | flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); |
3151 | break; | |
3152 | default: | |
3153 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
3154 | break; | |
3155 | } | |
a95a4550 | 3156 | |
3af9a47b | 3157 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 3158 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
3159 | if (sname == NULL) |
3160 | return -1; | |
3161 | ||
3162 | for (;;) | |
3163 | { | |
a95a4550 AM |
3164 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
3165 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 3166 | break; |
a95a4550 | 3167 | j++; |
3af9a47b NC |
3168 | } |
3169 | ||
117ed4f8 | 3170 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 3171 | |
3af9a47b NC |
3172 | bfdsec->vma = 0; |
3173 | bfdsec->lma = 0; | |
eea6121a | 3174 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
3175 | bfdsec->filepos = cmd->flavours[i].offset; |
3176 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
3177 | |
3178 | cmd->section = bfdsec; | |
3179 | } | |
3180 | ||
3181 | return 0; | |
3182 | } | |
3183 | ||
a95a4550 | 3184 | static int |
ab273af8 | 3185 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3186 | { |
046b007d | 3187 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 3188 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
3189 | |
3190 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
3191 | ||
46d1c23b TG |
3192 | { |
3193 | struct mach_o_dysymtab_command_external raw; | |
3194 | ||
3195 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3196 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3197 | return -1; | |
3af9a47b | 3198 | |
46d1c23b TG |
3199 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
3200 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
3201 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
3202 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
3203 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
3204 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
3205 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
3206 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
3207 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
3208 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
3209 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
3210 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
3211 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
3212 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
3213 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
3214 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
3215 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
3216 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
3217 | } | |
046b007d TG |
3218 | |
3219 | if (cmd->nmodtab != 0) | |
3220 | { | |
046b007d TG |
3221 | unsigned int i; |
3222 | int wide = bfd_mach_o_wide_p (abfd); | |
3223 | unsigned int module_len = wide ? 56 : 52; | |
3224 | ||
3225 | cmd->dylib_module = | |
3226 | bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module)); | |
3227 | if (cmd->dylib_module == NULL) | |
3228 | return -1; | |
3229 | ||
3230 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
3231 | return -1; | |
3232 | ||
3233 | for (i = 0; i < cmd->nmodtab; i++) | |
3234 | { | |
3235 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
3236 | unsigned long v; | |
46d1c23b | 3237 | unsigned char buf[56]; |
046b007d | 3238 | |
91d6fa6a | 3239 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) |
046b007d TG |
3240 | return -1; |
3241 | ||
3242 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
3243 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
3244 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
3245 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
3246 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
3247 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
3248 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
3249 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
3250 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
3251 | v = bfd_h_get_32 (abfd, buf +36); | |
3252 | module->iinit = v & 0xffff; | |
3253 | module->iterm = (v >> 16) & 0xffff; | |
3254 | v = bfd_h_get_32 (abfd, buf + 40); | |
3255 | module->ninit = v & 0xffff; | |
3256 | module->nterm = (v >> 16) & 0xffff; | |
3257 | if (wide) | |
3258 | { | |
3259 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
3260 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
3261 | } | |
3262 | else | |
3263 | { | |
3264 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
3265 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
3266 | } | |
3267 | } | |
3268 | } | |
afbb9e17 | 3269 | |
046b007d TG |
3270 | if (cmd->ntoc != 0) |
3271 | { | |
046b007d TG |
3272 | unsigned int i; |
3273 | ||
3274 | cmd->dylib_toc = bfd_alloc | |
3275 | (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content)); | |
3276 | if (cmd->dylib_toc == NULL) | |
3277 | return -1; | |
3278 | ||
3279 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
3280 | return -1; | |
3281 | ||
3282 | for (i = 0; i < cmd->ntoc; i++) | |
3283 | { | |
46d1c23b | 3284 | struct mach_o_dylib_table_of_contents_external raw; |
046b007d TG |
3285 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; |
3286 | ||
46d1c23b | 3287 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
3288 | return -1; |
3289 | ||
46d1c23b TG |
3290 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
3291 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
046b007d TG |
3292 | } |
3293 | } | |
3294 | ||
3295 | if (cmd->nindirectsyms != 0) | |
3296 | { | |
046b007d TG |
3297 | unsigned int i; |
3298 | ||
3299 | cmd->indirect_syms = bfd_alloc | |
3300 | (abfd, cmd->nindirectsyms * sizeof (unsigned int)); | |
3301 | if (cmd->indirect_syms == NULL) | |
3302 | return -1; | |
3303 | ||
3304 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
3305 | return -1; | |
3306 | ||
3307 | for (i = 0; i < cmd->nindirectsyms; i++) | |
3308 | { | |
46d1c23b | 3309 | unsigned char raw[4]; |
046b007d TG |
3310 | unsigned int *is = &cmd->indirect_syms[i]; |
3311 | ||
46d1c23b | 3312 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
3313 | return -1; |
3314 | ||
46d1c23b | 3315 | *is = bfd_h_get_32 (abfd, raw); |
046b007d TG |
3316 | } |
3317 | } | |
3318 | ||
3319 | if (cmd->nextrefsyms != 0) | |
3320 | { | |
046b007d TG |
3321 | unsigned long v; |
3322 | unsigned int i; | |
3323 | ||
3324 | cmd->ext_refs = bfd_alloc | |
3325 | (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference)); | |
3326 | if (cmd->ext_refs == NULL) | |
3327 | return -1; | |
3328 | ||
3329 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
3330 | return -1; | |
3331 | ||
3332 | for (i = 0; i < cmd->nextrefsyms; i++) | |
3333 | { | |
46d1c23b | 3334 | unsigned char raw[4]; |
046b007d TG |
3335 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; |
3336 | ||
46d1c23b | 3337 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
3338 | return -1; |
3339 | ||
b32e07d7 TG |
3340 | /* Fields isym and flags are written as bit-fields, thus we need |
3341 | a specific processing for endianness. */ | |
46d1c23b | 3342 | v = bfd_h_get_32 (abfd, raw); |
b32e07d7 TG |
3343 | if (bfd_big_endian (abfd)) |
3344 | { | |
3345 | ref->isym = (v >> 8) & 0xffffff; | |
3346 | ref->flags = v & 0xff; | |
3347 | } | |
3348 | else | |
3349 | { | |
3350 | ref->isym = v & 0xffffff; | |
3351 | ref->flags = (v >> 24) & 0xff; | |
3352 | } | |
046b007d TG |
3353 | } |
3354 | } | |
3af9a47b | 3355 | |
b32e07d7 TG |
3356 | if (mdata->dysymtab) |
3357 | return -1; | |
3358 | mdata->dysymtab = cmd; | |
3359 | ||
3af9a47b NC |
3360 | return 0; |
3361 | } | |
3362 | ||
a95a4550 | 3363 | static int |
ab273af8 | 3364 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3365 | { |
046b007d TG |
3366 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
3367 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 3368 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
3369 | |
3370 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
3371 | ||
46d1c23b TG |
3372 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3373 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b | 3374 | return -1; |
a95a4550 | 3375 | |
46d1c23b TG |
3376 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
3377 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
3378 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
3379 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
3380 | symtab->symbols = NULL; |
3381 | symtab->strtab = NULL; | |
3af9a47b | 3382 | |
046b007d | 3383 | if (symtab->nsyms != 0) |
15e1c58a TG |
3384 | abfd->flags |= HAS_SYMS; |
3385 | ||
046b007d TG |
3386 | if (mdata->symtab) |
3387 | return -1; | |
3388 | mdata->symtab = symtab; | |
3af9a47b NC |
3389 | return 0; |
3390 | } | |
3391 | ||
15e1c58a | 3392 | static int |
ab273af8 | 3393 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
3394 | { |
3395 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
3396 | |
3397 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
3398 | ||
46d1c23b TG |
3399 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3400 | || bfd_bread (cmd->uuid, 16, abfd) != 16) | |
15e1c58a TG |
3401 | return -1; |
3402 | ||
15e1c58a TG |
3403 | return 0; |
3404 | } | |
3405 | ||
046b007d | 3406 | static int |
ab273af8 | 3407 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
3408 | { |
3409 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 3410 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 3411 | |
46d1c23b TG |
3412 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3413 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
046b007d TG |
3414 | return -1; |
3415 | ||
46d1c23b TG |
3416 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
3417 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
046b007d TG |
3418 | return 0; |
3419 | } | |
3420 | ||
3421 | static int | |
ab273af8 | 3422 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
3423 | { |
3424 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 3425 | struct mach_o_str_command_external raw; |
046b007d TG |
3426 | unsigned long off; |
3427 | ||
46d1c23b TG |
3428 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3429 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
046b007d TG |
3430 | return -1; |
3431 | ||
46d1c23b | 3432 | off = bfd_get_32 (abfd, raw.str); |
046b007d TG |
3433 | cmd->stroff = command->offset + off; |
3434 | cmd->str_len = command->len - off; | |
3435 | cmd->str = bfd_alloc (abfd, cmd->str_len); | |
3436 | if (cmd->str == NULL) | |
3437 | return -1; | |
3438 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 | |
91d6fa6a | 3439 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
046b007d TG |
3440 | return -1; |
3441 | return 0; | |
3442 | } | |
3443 | ||
ad86f1fb | 3444 | static int |
ab273af8 | 3445 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
3446 | { |
3447 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 3448 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 3449 | |
46d1c23b TG |
3450 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3451 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
ad86f1fb TG |
3452 | return -1; |
3453 | ||
46d1c23b TG |
3454 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
3455 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
3456 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); | |
3457 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
3458 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); | |
3459 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
3460 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); | |
3461 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
3462 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); | |
3463 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
ad86f1fb TG |
3464 | return 0; |
3465 | } | |
3466 | ||
edbdea0e TG |
3467 | static bfd_boolean |
3468 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
3469 | { | |
3470 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
3471 | struct mach_o_version_min_command_external raw; | |
3472 | unsigned int ver; | |
3473 | ||
3474 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3475 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3476 | return FALSE; | |
3477 | ||
3478 | ver = bfd_get_32 (abfd, raw.version); | |
3479 | cmd->rel = ver >> 16; | |
3480 | cmd->maj = ver >> 8; | |
3481 | cmd->min = ver; | |
3482 | cmd->reserved = bfd_get_32 (abfd, raw.reserved); | |
3483 | return TRUE; | |
3484 | } | |
3485 | ||
fc55a902 TG |
3486 | static bfd_boolean |
3487 | bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command) | |
3488 | { | |
3489 | bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info; | |
3490 | struct mach_o_encryption_info_command_external raw; | |
3491 | ||
3492 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
3493 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3494 | return FALSE; | |
3495 | ||
3496 | cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff); | |
3497 | cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize); | |
3498 | cmd->cryptid = bfd_get_32 (abfd, raw.cryptid); | |
3499 | return TRUE; | |
3500 | } | |
3501 | ||
3af9a47b | 3502 | static int |
ab273af8 TG |
3503 | bfd_mach_o_read_segment (bfd *abfd, |
3504 | bfd_mach_o_load_command *command, | |
3505 | unsigned int wide) | |
3af9a47b | 3506 | { |
3af9a47b NC |
3507 | bfd_mach_o_segment_command *seg = &command->command.segment; |
3508 | unsigned long i; | |
a95a4550 | 3509 | |
1e8a024a TG |
3510 | if (wide) |
3511 | { | |
46d1c23b TG |
3512 | struct mach_o_segment_command_64_external raw; |
3513 | ||
1e8a024a | 3514 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 3515 | |
46d1c23b TG |
3516 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3517 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3518 | return -1; | |
3af9a47b | 3519 | |
46d1c23b | 3520 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 3521 | seg->segname[16] = '\0'; |
1e8a024a | 3522 | |
46d1c23b TG |
3523 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
3524 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
3525 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
3526 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
3527 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
3528 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
3529 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
3530 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
3531 | } |
3532 | else | |
3533 | { | |
46d1c23b TG |
3534 | struct mach_o_segment_command_32_external raw; |
3535 | ||
1e8a024a TG |
3536 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
3537 | ||
46d1c23b TG |
3538 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
3539 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3540 | return -1; | |
1e8a024a | 3541 | |
46d1c23b | 3542 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 3543 | seg->segname[16] = '\0'; |
1e8a024a | 3544 | |
46d1c23b TG |
3545 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
3546 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
3547 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
3548 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
3549 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
3550 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
3551 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
3552 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 3553 | } |
9d4b6009 TG |
3554 | seg->sect_head = NULL; |
3555 | seg->sect_tail = NULL; | |
3af9a47b | 3556 | |
f1bde64c | 3557 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 3558 | { |
f1bde64c TG |
3559 | bfd_vma segoff; |
3560 | asection *sec; | |
a95a4550 | 3561 | |
f1bde64c TG |
3562 | if (wide) |
3563 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE | |
3564 | + (i * BFD_MACH_O_SECTION_64_SIZE); | |
3565 | else | |
3566 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE | |
3567 | + (i * BFD_MACH_O_SECTION_SIZE); | |
3af9a47b | 3568 | |
f1bde64c TG |
3569 | sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide); |
3570 | if (sec == NULL) | |
3571 | return -1; | |
3572 | ||
3573 | bfd_mach_o_append_section_to_segment (seg, sec); | |
3af9a47b NC |
3574 | } |
3575 | ||
3576 | return 0; | |
3577 | } | |
3578 | ||
1e8a024a | 3579 | static int |
ab273af8 | 3580 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 3581 | { |
ab273af8 | 3582 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
3583 | } |
3584 | ||
3585 | static int | |
ab273af8 | 3586 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 3587 | { |
ab273af8 | 3588 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
3589 | } |
3590 | ||
3af9a47b | 3591 | static int |
ab273af8 | 3592 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 3593 | { |
46d1c23b TG |
3594 | struct mach_o_load_command_external raw; |
3595 | unsigned int cmd; | |
3af9a47b | 3596 | |
046b007d | 3597 | /* Read command type and length. */ |
c2f09c75 | 3598 | if (bfd_seek (abfd, command->offset, SEEK_SET) != 0 |
46d1c23b | 3599 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
3af9a47b NC |
3600 | return -1; |
3601 | ||
46d1c23b TG |
3602 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
3603 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; | |
3604 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; | |
3605 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3af9a47b NC |
3606 | |
3607 | switch (command->type) | |
3608 | { | |
3609 | case BFD_MACH_O_LC_SEGMENT: | |
ab273af8 | 3610 | if (bfd_mach_o_read_segment_32 (abfd, command) != 0) |
1e8a024a TG |
3611 | return -1; |
3612 | break; | |
3613 | case BFD_MACH_O_LC_SEGMENT_64: | |
ab273af8 | 3614 | if (bfd_mach_o_read_segment_64 (abfd, command) != 0) |
3af9a47b NC |
3615 | return -1; |
3616 | break; | |
3617 | case BFD_MACH_O_LC_SYMTAB: | |
ab273af8 | 3618 | if (bfd_mach_o_read_symtab (abfd, command) != 0) |
3af9a47b NC |
3619 | return -1; |
3620 | break; | |
3621 | case BFD_MACH_O_LC_SYMSEG: | |
3622 | break; | |
3623 | case BFD_MACH_O_LC_THREAD: | |
3624 | case BFD_MACH_O_LC_UNIXTHREAD: | |
ab273af8 | 3625 | if (bfd_mach_o_read_thread (abfd, command) != 0) |
3af9a47b NC |
3626 | return -1; |
3627 | break; | |
3628 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
3629 | case BFD_MACH_O_LC_ID_DYLINKER: | |
ab273af8 | 3630 | if (bfd_mach_o_read_dylinker (abfd, command) != 0) |
3af9a47b NC |
3631 | return -1; |
3632 | break; | |
3633 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
3634 | case BFD_MACH_O_LC_ID_DYLIB: | |
3635 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 3636 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 3637 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
ab273af8 | 3638 | if (bfd_mach_o_read_dylib (abfd, command) != 0) |
3af9a47b NC |
3639 | return -1; |
3640 | break; | |
3641 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
ab273af8 | 3642 | if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0) |
3af9a47b NC |
3643 | return -1; |
3644 | break; | |
3645 | case BFD_MACH_O_LC_LOADFVMLIB: | |
3646 | case BFD_MACH_O_LC_IDFVMLIB: | |
9f4a5bd1 TG |
3647 | if (bfd_mach_o_read_fvmlib (abfd, command) != 0) |
3648 | return -1; | |
3649 | break; | |
3af9a47b NC |
3650 | case BFD_MACH_O_LC_IDENT: |
3651 | case BFD_MACH_O_LC_FVMFILE: | |
3652 | case BFD_MACH_O_LC_PREPAGE: | |
3653 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 3654 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 3655 | break; |
3af9a47b | 3656 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
3657 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
3658 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
3659 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 3660 | case BFD_MACH_O_LC_RPATH: |
ab273af8 | 3661 | if (bfd_mach_o_read_str (abfd, command) != 0) |
046b007d | 3662 | return -1; |
3af9a47b NC |
3663 | break; |
3664 | case BFD_MACH_O_LC_DYSYMTAB: | |
ab273af8 | 3665 | if (bfd_mach_o_read_dysymtab (abfd, command) != 0) |
3af9a47b NC |
3666 | return -1; |
3667 | break; | |
3af9a47b NC |
3668 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: |
3669 | case BFD_MACH_O_LC_PREBIND_CKSUM: | |
3670 | break; | |
15e1c58a | 3671 | case BFD_MACH_O_LC_UUID: |
ab273af8 | 3672 | if (bfd_mach_o_read_uuid (abfd, command) != 0) |
15e1c58a TG |
3673 | return -1; |
3674 | break; | |
3675 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 3676 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 3677 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
ab273af8 | 3678 | if (bfd_mach_o_read_linkedit (abfd, command) != 0) |
046b007d | 3679 | return -1; |
15e1c58a | 3680 | break; |
fc55a902 TG |
3681 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
3682 | if (!bfd_mach_o_read_encryption_info (abfd, command)) | |
3683 | return -1; | |
3684 | break; | |
ad86f1fb | 3685 | case BFD_MACH_O_LC_DYLD_INFO: |
ab273af8 | 3686 | if (bfd_mach_o_read_dyld_info (abfd, command) != 0) |
ad86f1fb TG |
3687 | return -1; |
3688 | break; | |
edbdea0e TG |
3689 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
3690 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
3691 | if (!bfd_mach_o_read_version_min (abfd, command)) | |
3692 | return -1; | |
3693 | break; | |
3af9a47b | 3694 | default: |
fc55a902 | 3695 | (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"), |
c0d9d051 | 3696 | abfd, (unsigned long) command->type); |
3af9a47b NC |
3697 | break; |
3698 | } | |
3699 | ||
3700 | return 0; | |
3701 | } | |
3702 | ||
3703 | static void | |
116c20d2 | 3704 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 3705 | { |
046b007d | 3706 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 3707 | long csect = 0; |
f1bde64c | 3708 | unsigned long i; |
a95a4550 | 3709 | |
15e1c58a | 3710 | /* Count total number of sections. */ |
3af9a47b NC |
3711 | mdata->nsects = 0; |
3712 | ||
3713 | for (i = 0; i < mdata->header.ncmds; i++) | |
3714 | { | |
1e8a024a TG |
3715 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
3716 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 3717 | { |
e84d6fca AM |
3718 | bfd_mach_o_segment_command *seg; |
3719 | ||
3720 | seg = &mdata->commands[i].command.segment; | |
3af9a47b NC |
3721 | mdata->nsects += seg->nsects; |
3722 | } | |
3723 | } | |
3724 | ||
15e1c58a | 3725 | /* Allocate sections array. */ |
e84d6fca AM |
3726 | mdata->sections = bfd_alloc (abfd, |
3727 | mdata->nsects * sizeof (bfd_mach_o_section *)); | |
15e1c58a TG |
3728 | |
3729 | /* Fill the array. */ | |
3af9a47b NC |
3730 | csect = 0; |
3731 | ||
3732 | for (i = 0; i < mdata->header.ncmds; i++) | |
3733 | { | |
1e8a024a TG |
3734 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
3735 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 3736 | { |
e84d6fca | 3737 | bfd_mach_o_segment_command *seg; |
f1bde64c | 3738 | bfd_mach_o_section *sec; |
3af9a47b | 3739 | |
e84d6fca | 3740 | seg = &mdata->commands[i].command.segment; |
3af9a47b NC |
3741 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); |
3742 | ||
f1bde64c TG |
3743 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
3744 | mdata->sections[csect++] = sec; | |
3af9a47b NC |
3745 | } |
3746 | } | |
3747 | } | |
3748 | ||
afbb9e17 | 3749 | static bfd_boolean |
116c20d2 | 3750 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 3751 | { |
046b007d | 3752 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
3753 | bfd_mach_o_thread_command *cmd = NULL; |
3754 | unsigned long i; | |
3755 | ||
3756 | for (i = 0; i < mdata->header.ncmds; i++) | |
afbb9e17 TG |
3757 | if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || |
3758 | (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) | |
3759 | { | |
3760 | cmd = &mdata->commands[i].command.thread; | |
3761 | break; | |
3762 | } | |
3af9a47b NC |
3763 | |
3764 | if (cmd == NULL) | |
afbb9e17 | 3765 | return FALSE; |
3af9a47b | 3766 | |
afbb9e17 | 3767 | /* FIXME: create a subtarget hook ? */ |
3af9a47b NC |
3768 | for (i = 0; i < cmd->nflavours; i++) |
3769 | { | |
a95a4550 | 3770 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
e84d6fca | 3771 | && (cmd->flavours[i].flavour |
15e1c58a | 3772 | == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
3773 | { |
3774 | unsigned char buf[4]; | |
3775 | ||
c2f09c75 TG |
3776 | if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0 |
3777 | || bfd_bread (buf, 4, abfd) != 4) | |
afbb9e17 | 3778 | return FALSE; |
3af9a47b NC |
3779 | |
3780 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
3781 | } | |
a95a4550 | 3782 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
3af9a47b NC |
3783 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3784 | { | |
3785 | unsigned char buf[4]; | |
3786 | ||
c2f09c75 TG |
3787 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
3788 | || bfd_bread (buf, 4, abfd) != 4) | |
afbb9e17 | 3789 | return FALSE; |
3af9a47b NC |
3790 | |
3791 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
3792 | } | |
1e8a024a | 3793 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
b32e07d7 | 3794 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
1e8a024a TG |
3795 | { |
3796 | unsigned char buf[8]; | |
3797 | ||
c2f09c75 TG |
3798 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
3799 | || bfd_bread (buf, 8, abfd) != 8) | |
afbb9e17 | 3800 | return FALSE; |
1e8a024a TG |
3801 | |
3802 | abfd->start_address = bfd_h_get_64 (abfd, buf); | |
3803 | } | |
3804 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) | |
3805 | && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) | |
3806 | { | |
3807 | unsigned char buf[8]; | |
3808 | ||
c2f09c75 TG |
3809 | if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
3810 | || bfd_bread (buf, 8, abfd) != 8) | |
afbb9e17 | 3811 | return FALSE; |
1e8a024a TG |
3812 | |
3813 | abfd->start_address = bfd_h_get_64 (abfd, buf); | |
3814 | } | |
3af9a47b NC |
3815 | } |
3816 | ||
afbb9e17 | 3817 | return TRUE; |
3af9a47b NC |
3818 | } |
3819 | ||
42fa0891 TG |
3820 | bfd_boolean |
3821 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
3822 | enum bfd_architecture arch, | |
3823 | unsigned long machine) | |
3824 | { | |
3825 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
3826 | ||
3827 | /* If this isn't the right architecture for this backend, and this | |
3828 | isn't the generic backend, fail. */ | |
3829 | if (arch != bed->arch | |
3830 | && arch != bfd_arch_unknown | |
3831 | && bed->arch != bfd_arch_unknown) | |
3832 | return FALSE; | |
3833 | ||
3834 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
3835 | } | |
3836 | ||
afbb9e17 | 3837 | static bfd_boolean |
116c20d2 NC |
3838 | bfd_mach_o_scan (bfd *abfd, |
3839 | bfd_mach_o_header *header, | |
3840 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
3841 | { |
3842 | unsigned int i; | |
3af9a47b NC |
3843 | enum bfd_architecture cputype; |
3844 | unsigned long cpusubtype; | |
1e8a024a TG |
3845 | unsigned int hdrsize; |
3846 | ||
c2f09c75 | 3847 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 3848 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 3849 | |
3af9a47b | 3850 | mdata->header = *header; |
3af9a47b | 3851 | |
154a1ee5 | 3852 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
3853 | switch (header->filetype) |
3854 | { | |
3855 | case BFD_MACH_O_MH_OBJECT: | |
3856 | abfd->flags |= HAS_RELOC; | |
3857 | break; | |
3858 | case BFD_MACH_O_MH_EXECUTE: | |
3859 | abfd->flags |= EXEC_P; | |
3860 | break; | |
3861 | case BFD_MACH_O_MH_DYLIB: | |
3862 | case BFD_MACH_O_MH_BUNDLE: | |
3863 | abfd->flags |= DYNAMIC; | |
3864 | break; | |
3865 | } | |
3866 | ||
3af9a47b NC |
3867 | abfd->tdata.mach_o_data = mdata; |
3868 | ||
e84d6fca AM |
3869 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
3870 | &cputype, &cpusubtype); | |
3af9a47b NC |
3871 | if (cputype == bfd_arch_unknown) |
3872 | { | |
afbb9e17 TG |
3873 | (*_bfd_error_handler) |
3874 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), | |
3875 | header->cputype, header->cpusubtype); | |
3876 | return FALSE; | |
3af9a47b NC |
3877 | } |
3878 | ||
3879 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 3880 | |
3af9a47b NC |
3881 | if (header->ncmds != 0) |
3882 | { | |
046b007d TG |
3883 | mdata->commands = bfd_alloc |
3884 | (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)); | |
3af9a47b | 3885 | if (mdata->commands == NULL) |
afbb9e17 | 3886 | return FALSE; |
a95a4550 | 3887 | |
3af9a47b NC |
3888 | for (i = 0; i < header->ncmds; i++) |
3889 | { | |
3890 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
3891 | ||
3892 | if (i == 0) | |
1e8a024a | 3893 | cur->offset = hdrsize; |
3af9a47b NC |
3894 | else |
3895 | { | |
3896 | bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; | |
3897 | cur->offset = prev->offset + prev->len; | |
3898 | } | |
3899 | ||
ab273af8 | 3900 | if (bfd_mach_o_read_command (abfd, cur) < 0) |
afbb9e17 | 3901 | return FALSE; |
a95a4550 | 3902 | } |
3af9a47b NC |
3903 | } |
3904 | ||
3905 | if (bfd_mach_o_scan_start_address (abfd) < 0) | |
afbb9e17 | 3906 | return FALSE; |
3af9a47b NC |
3907 | |
3908 | bfd_mach_o_flatten_sections (abfd); | |
afbb9e17 | 3909 | return TRUE; |
3af9a47b NC |
3910 | } |
3911 | ||
b34976b6 | 3912 | bfd_boolean |
154a1ee5 | 3913 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
3914 | { |
3915 | bfd_mach_o_data_struct *mdata = NULL; | |
3916 | ||
116c20d2 | 3917 | mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 3918 | if (mdata == NULL) |
b34976b6 | 3919 | return FALSE; |
3af9a47b NC |
3920 | abfd->tdata.mach_o_data = mdata; |
3921 | ||
3922 | mdata->header.magic = 0; | |
3923 | mdata->header.cputype = 0; | |
3924 | mdata->header.cpusubtype = 0; | |
3925 | mdata->header.filetype = 0; | |
3926 | mdata->header.ncmds = 0; | |
3927 | mdata->header.sizeofcmds = 0; | |
3928 | mdata->header.flags = 0; | |
3929 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
3930 | mdata->commands = NULL; | |
3af9a47b NC |
3931 | mdata->nsects = 0; |
3932 | mdata->sections = NULL; | |
4434114c | 3933 | mdata->dyn_reloc_cache = NULL; |
3af9a47b | 3934 | |
b34976b6 | 3935 | return TRUE; |
3af9a47b NC |
3936 | } |
3937 | ||
42fa0891 TG |
3938 | static bfd_boolean |
3939 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
3940 | { | |
3941 | bfd_mach_o_data_struct *mdata; | |
3942 | ||
3943 | if (!bfd_mach_o_mkobject_init (abfd)) | |
3944 | return FALSE; | |
3945 | ||
3946 | mdata = bfd_mach_o_get_data (abfd); | |
3947 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
3948 | mdata->header.cputype = 0; | |
3949 | mdata->header.cpusubtype = 0; | |
3950 | mdata->header.byteorder = abfd->xvec->byteorder; | |
3951 | mdata->header.version = 1; | |
3952 | ||
3953 | return TRUE; | |
3954 | } | |
3955 | ||
3af9a47b | 3956 | const bfd_target * |
154a1ee5 TG |
3957 | bfd_mach_o_header_p (bfd *abfd, |
3958 | bfd_mach_o_filetype filetype, | |
3959 | bfd_mach_o_cpu_type cputype) | |
3af9a47b | 3960 | { |
e84d6fca | 3961 | struct bfd_preserve preserve; |
3af9a47b NC |
3962 | bfd_mach_o_header header; |
3963 | ||
e84d6fca | 3964 | preserve.marker = NULL; |
154a1ee5 | 3965 | if (!bfd_mach_o_read_header (abfd, &header)) |
e84d6fca | 3966 | goto wrong; |
3af9a47b | 3967 | |
e84d6fca AM |
3968 | if (! (header.byteorder == BFD_ENDIAN_BIG |
3969 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 3970 | { |
4a97a0e5 AM |
3971 | (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"), |
3972 | (unsigned long) header.byteorder); | |
e84d6fca | 3973 | goto wrong; |
3af9a47b NC |
3974 | } |
3975 | ||
e84d6fca AM |
3976 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
3977 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
3978 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
3979 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
3980 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
3981 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
3982 | goto wrong; | |
3af9a47b | 3983 | |
154a1ee5 TG |
3984 | /* Check cputype and filetype. |
3985 | In case of wildcard, do not accept magics that are handled by existing | |
3986 | targets. */ | |
3987 | if (cputype) | |
3988 | { | |
3989 | if (header.cputype != cputype) | |
3990 | goto wrong; | |
3991 | } | |
154a1ee5 TG |
3992 | if (filetype) |
3993 | { | |
3994 | if (header.filetype != filetype) | |
3995 | goto wrong; | |
3996 | } | |
3997 | else | |
3998 | { | |
3999 | switch (header.filetype) | |
4000 | { | |
4001 | case BFD_MACH_O_MH_CORE: | |
4002 | /* Handled by core_p */ | |
4003 | goto wrong; | |
4004 | default: | |
4005 | break; | |
4006 | } | |
4007 | } | |
4008 | ||
e84d6fca AM |
4009 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
4010 | if (preserve.marker == NULL | |
4011 | || !bfd_preserve_save (abfd, &preserve)) | |
4012 | goto fail; | |
3af9a47b | 4013 | |
afbb9e17 TG |
4014 | if (!bfd_mach_o_scan (abfd, &header, |
4015 | (bfd_mach_o_data_struct *) preserve.marker)) | |
e84d6fca | 4016 | goto wrong; |
a95a4550 | 4017 | |
e84d6fca | 4018 | bfd_preserve_finish (abfd, &preserve); |
3af9a47b | 4019 | return abfd->xvec; |
e84d6fca AM |
4020 | |
4021 | wrong: | |
4022 | bfd_set_error (bfd_error_wrong_format); | |
4023 | ||
4024 | fail: | |
4025 | if (preserve.marker != NULL) | |
4026 | bfd_preserve_restore (abfd, &preserve); | |
4027 | return NULL; | |
3af9a47b NC |
4028 | } |
4029 | ||
154a1ee5 TG |
4030 | static const bfd_target * |
4031 | bfd_mach_o_gen_object_p (bfd *abfd) | |
3af9a47b | 4032 | { |
154a1ee5 TG |
4033 | return bfd_mach_o_header_p (abfd, 0, 0); |
4034 | } | |
e84d6fca | 4035 | |
154a1ee5 TG |
4036 | static const bfd_target * |
4037 | bfd_mach_o_gen_core_p (bfd *abfd) | |
4038 | { | |
4039 | return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0); | |
3af9a47b NC |
4040 | } |
4041 | ||
4042 | typedef struct mach_o_fat_archentry | |
4043 | { | |
4044 | unsigned long cputype; | |
4045 | unsigned long cpusubtype; | |
4046 | unsigned long offset; | |
4047 | unsigned long size; | |
4048 | unsigned long align; | |
3af9a47b NC |
4049 | } mach_o_fat_archentry; |
4050 | ||
4051 | typedef struct mach_o_fat_data_struct | |
4052 | { | |
4053 | unsigned long magic; | |
4054 | unsigned long nfat_arch; | |
4055 | mach_o_fat_archentry *archentries; | |
4056 | } mach_o_fat_data_struct; | |
4057 | ||
4058 | const bfd_target * | |
116c20d2 | 4059 | bfd_mach_o_archive_p (bfd *abfd) |
3af9a47b | 4060 | { |
e84d6fca | 4061 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 4062 | struct mach_o_fat_header_external hdr; |
3af9a47b NC |
4063 | unsigned long i; |
4064 | ||
c2f09c75 | 4065 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 4066 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 4067 | goto error; |
3af9a47b | 4068 | |
116c20d2 | 4069 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 4070 | if (adata == NULL) |
e84d6fca | 4071 | goto error; |
a95a4550 | 4072 | |
46d1c23b TG |
4073 | adata->magic = bfd_getb32 (hdr.magic); |
4074 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 4075 | if (adata->magic != 0xcafebabe) |
e84d6fca | 4076 | goto error; |
27cc28f9 AS |
4077 | /* Avoid matching Java bytecode files, which have the same magic number. |
4078 | In the Java bytecode file format this field contains the JVM version, | |
4079 | which starts at 43.0. */ | |
4080 | if (adata->nfat_arch > 30) | |
4081 | goto error; | |
3af9a47b | 4082 | |
c2f09c75 | 4083 | adata->archentries = |
3af9a47b NC |
4084 | bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); |
4085 | if (adata->archentries == NULL) | |
e84d6fca | 4086 | goto error; |
3af9a47b NC |
4087 | |
4088 | for (i = 0; i < adata->nfat_arch; i++) | |
4089 | { | |
46d1c23b TG |
4090 | struct mach_o_fat_arch_external arch; |
4091 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 4092 | goto error; |
46d1c23b TG |
4093 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
4094 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
4095 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
4096 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
4097 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
4098 | } |
4099 | ||
4100 | abfd->tdata.mach_o_fat_data = adata; | |
4101 | return abfd->xvec; | |
e84d6fca AM |
4102 | |
4103 | error: | |
4104 | if (adata != NULL) | |
4105 | bfd_release (abfd, adata); | |
4106 | bfd_set_error (bfd_error_wrong_format); | |
4107 | return NULL; | |
3af9a47b NC |
4108 | } |
4109 | ||
a4e241ca TG |
4110 | /* Set the filename for a fat binary member ABFD, whose bfd architecture is |
4111 | ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY. | |
4112 | Set arelt_data and origin fields too. */ | |
4113 | ||
4114 | static void | |
4115 | bfd_mach_o_fat_member_init (bfd *abfd, | |
4116 | enum bfd_architecture arch_type, | |
4117 | unsigned long arch_subtype, | |
4118 | mach_o_fat_archentry *entry) | |
4119 | { | |
4120 | struct areltdata *areltdata; | |
4121 | /* Create the member filename. Use ARCH_NAME. */ | |
4122 | const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype); | |
4123 | ||
4124 | if (ap) | |
4125 | { | |
4126 | /* Use the architecture name if known. */ | |
4127 | abfd->filename = ap->printable_name; | |
4128 | } | |
4129 | else | |
4130 | { | |
4131 | /* Forge a uniq id. */ | |
4132 | const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1; | |
4133 | char *name = bfd_alloc (abfd, namelen); | |
4134 | snprintf (name, namelen, "0x%lx-0x%lx", | |
4135 | entry->cputype, entry->cpusubtype); | |
4136 | abfd->filename = name; | |
4137 | } | |
4138 | ||
4139 | areltdata = bfd_zalloc (abfd, sizeof (struct areltdata)); | |
4140 | areltdata->parsed_size = entry->size; | |
4141 | abfd->arelt_data = areltdata; | |
4142 | abfd->iostream = NULL; | |
4143 | abfd->origin = entry->offset; | |
4144 | } | |
4145 | ||
3af9a47b | 4146 | bfd * |
116c20d2 | 4147 | bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 4148 | { |
e84d6fca | 4149 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
4150 | mach_o_fat_archentry *entry = NULL; |
4151 | unsigned long i; | |
15e1c58a | 4152 | bfd *nbfd; |
15e1c58a TG |
4153 | enum bfd_architecture arch_type; |
4154 | unsigned long arch_subtype; | |
3af9a47b | 4155 | |
e84d6fca | 4156 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
4157 | BFD_ASSERT (adata != NULL); |
4158 | ||
4159 | /* Find index of previous entry. */ | |
4160 | if (prev == NULL) | |
a4e241ca TG |
4161 | { |
4162 | /* Start at first one. */ | |
4163 | i = 0; | |
4164 | } | |
3af9a47b NC |
4165 | else |
4166 | { | |
a4e241ca | 4167 | /* Find index of PREV. */ |
3af9a47b NC |
4168 | for (i = 0; i < adata->nfat_arch; i++) |
4169 | { | |
15e1c58a | 4170 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
4171 | break; |
4172 | } | |
4173 | ||
4174 | if (i == adata->nfat_arch) | |
4175 | { | |
4176 | /* Not found. */ | |
4177 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 4178 | return NULL; |
3af9a47b | 4179 | } |
a4e241ca TG |
4180 | |
4181 | /* Get next entry. */ | |
4182 | i++; | |
4183 | } | |
a95a4550 | 4184 | |
3af9a47b NC |
4185 | if (i >= adata->nfat_arch) |
4186 | { | |
4187 | bfd_set_error (bfd_error_no_more_archived_files); | |
4188 | return NULL; | |
4189 | } | |
4190 | ||
4191 | entry = &adata->archentries[i]; | |
15e1c58a TG |
4192 | nbfd = _bfd_new_bfd_contained_in (archive); |
4193 | if (nbfd == NULL) | |
4194 | return NULL; | |
4195 | ||
15e1c58a TG |
4196 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
4197 | &arch_type, &arch_subtype); | |
846b9259 | 4198 | |
a4e241ca TG |
4199 | bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry); |
4200 | ||
846b9259 | 4201 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 4202 | |
15e1c58a | 4203 | return nbfd; |
3af9a47b NC |
4204 | } |
4205 | ||
846b9259 TG |
4206 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
4207 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
4208 | and ARCH, returns it. | |
4209 | In other case, returns NULL. | |
4210 | This function allows transparent uses of fat images. */ | |
a4e241ca | 4211 | |
846b9259 TG |
4212 | bfd * |
4213 | bfd_mach_o_fat_extract (bfd *abfd, | |
4214 | bfd_format format, | |
4215 | const bfd_arch_info_type *arch) | |
4216 | { | |
4217 | bfd *res; | |
4218 | mach_o_fat_data_struct *adata; | |
4219 | unsigned int i; | |
4220 | ||
4221 | if (bfd_check_format (abfd, format)) | |
4222 | { | |
4223 | if (bfd_get_arch_info (abfd) == arch) | |
4224 | return abfd; | |
4225 | return NULL; | |
4226 | } | |
4227 | if (!bfd_check_format (abfd, bfd_archive) | |
4228 | || abfd->xvec != &mach_o_fat_vec) | |
4229 | return NULL; | |
c2f09c75 | 4230 | |
846b9259 TG |
4231 | /* This is a Mach-O fat image. */ |
4232 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
4233 | BFD_ASSERT (adata != NULL); | |
4234 | ||
4235 | for (i = 0; i < adata->nfat_arch; i++) | |
4236 | { | |
4237 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
4238 | enum bfd_architecture cpu_type; | |
4239 | unsigned long cpu_subtype; | |
4240 | ||
4241 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
4242 | &cpu_type, &cpu_subtype); | |
4243 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
4244 | continue; | |
4245 | ||
4246 | /* The architecture is found. */ | |
4247 | res = _bfd_new_bfd_contained_in (abfd); | |
4248 | if (res == NULL) | |
4249 | return NULL; | |
4250 | ||
a4e241ca | 4251 | bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e); |
846b9259 TG |
4252 | |
4253 | if (bfd_check_format (res, format)) | |
4254 | { | |
4255 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
4256 | return res; | |
4257 | } | |
4258 | bfd_close (res); | |
4259 | return NULL; | |
4260 | } | |
4261 | ||
4262 | return NULL; | |
4263 | } | |
4264 | ||
3af9a47b | 4265 | int |
116c20d2 NC |
4266 | bfd_mach_o_lookup_command (bfd *abfd, |
4267 | bfd_mach_o_load_command_type type, | |
4268 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 4269 | { |
046b007d | 4270 | struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4271 | bfd_mach_o_load_command *ncmd = NULL; |
4272 | unsigned int i, num; | |
4273 | ||
3af9a47b NC |
4274 | BFD_ASSERT (md != NULL); |
4275 | BFD_ASSERT (mcommand != NULL); | |
4276 | ||
4277 | num = 0; | |
4278 | for (i = 0; i < md->header.ncmds; i++) | |
4279 | { | |
4280 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; | |
4281 | ||
4282 | if (cmd->type != type) | |
4283 | continue; | |
4284 | ||
4285 | if (num == 0) | |
4286 | ncmd = cmd; | |
4287 | num++; | |
4288 | } | |
4289 | ||
4290 | *mcommand = ncmd; | |
4291 | return num; | |
4292 | } | |
4293 | ||
4294 | unsigned long | |
116c20d2 | 4295 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
4296 | { |
4297 | switch (type) | |
4298 | { | |
4299 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
4300 | return 0x04000000; | |
4301 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
4302 | return 0xffffe000; | |
4303 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
4304 | return 0xc0000000; | |
4305 | case BFD_MACH_O_CPU_TYPE_I386: | |
4306 | return 0xc0000000; | |
4307 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
4308 | return 0xf0000000; | |
4309 | case BFD_MACH_O_CPU_TYPE_I860: | |
4310 | return 0; | |
4311 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
e84d6fca | 4312 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
4313 | default: |
4314 | return 0; | |
4315 | } | |
4316 | } | |
4317 | ||
ab76eeaf IS |
4318 | /* The following two tables should be kept, as far as possible, in order of |
4319 | most frequently used entries to optimize their use from gas. */ | |
4320 | ||
c5012cd8 | 4321 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
4322 | { |
4323 | { "regular", BFD_MACH_O_S_REGULAR}, | |
ab76eeaf | 4324 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
046b007d TG |
4325 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
4326 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
4327 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
4328 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
ab76eeaf | 4329 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
046b007d | 4330 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
046b007d TG |
4331 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
4332 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
046b007d TG |
4333 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
4334 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
046b007d | 4335 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
ab76eeaf IS |
4336 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
4337 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
a4551119 | 4338 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
4339 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
4340 | { NULL, 0} | |
4341 | }; | |
4342 | ||
c5012cd8 | 4343 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d | 4344 | { |
ab76eeaf IS |
4345 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
4346 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
046b007d TG |
4347 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
4348 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
046b007d | 4349 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
046b007d TG |
4350 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
4351 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
4352 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
4353 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
a4551119 | 4354 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
ab76eeaf | 4355 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
4356 | { NULL, 0} |
4357 | }; | |
4358 | ||
a4551119 | 4359 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
4360 | |
4361 | unsigned int | |
ab76eeaf | 4362 | bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name) |
53d58d96 | 4363 | { |
afbb9e17 | 4364 | const bfd_mach_o_xlat_name *x; |
ab76eeaf | 4365 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
53d58d96 TG |
4366 | |
4367 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
4368 | if (strcmp (x->name, name) == 0) | |
ab76eeaf IS |
4369 | { |
4370 | /* We found it... does the target support it? */ | |
4371 | if (bed->bfd_mach_o_section_type_valid_for_target == NULL | |
4372 | || bed->bfd_mach_o_section_type_valid_for_target (x->val)) | |
4373 | return x->val; /* OK. */ | |
4374 | else | |
4375 | break; /* Not supported. */ | |
4376 | } | |
a4551119 TG |
4377 | /* Maximum section ID = 0xff. */ |
4378 | return 256; | |
53d58d96 TG |
4379 | } |
4380 | ||
4381 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
4382 | ||
4383 | unsigned int | |
4384 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
4385 | { | |
afbb9e17 | 4386 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
4387 | |
4388 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
4389 | if (strcmp (x->name, name) == 0) | |
4390 | return x->val; | |
4391 | return (unsigned int)-1; | |
4392 | } | |
4393 | ||
3af9a47b | 4394 | int |
116c20d2 NC |
4395 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
4396 | unsigned char **rbuf, | |
4397 | unsigned int *rlen) | |
3af9a47b | 4398 | { |
046b007d | 4399 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
4400 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
4401 | unsigned int i = 0; | |
4402 | ||
4403 | for (i = 0; i < mdata->header.ncmds; i++) | |
4404 | { | |
4405 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
4406 | bfd_mach_o_segment_command *seg = NULL; | |
4407 | ||
4408 | if (cur->type != BFD_MACH_O_LC_SEGMENT) | |
4409 | continue; | |
4410 | ||
4411 | seg = &cur->command.segment; | |
4412 | ||
4413 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
4414 | { | |
4415 | unsigned long start = seg->fileoff; | |
4416 | unsigned long end = seg->fileoff + seg->filesize; | |
4417 | unsigned char *buf = bfd_malloc (1024); | |
4418 | unsigned long size = 1024; | |
4419 | ||
4420 | for (;;) | |
4421 | { | |
4422 | bfd_size_type nread = 0; | |
4423 | unsigned long offset; | |
4424 | int found_nonnull = 0; | |
4425 | ||
4426 | if (size > (end - start)) | |
4427 | size = (end - start); | |
4428 | ||
515ef31d NC |
4429 | buf = bfd_realloc_or_free (buf, size); |
4430 | if (buf == NULL) | |
4431 | return -1; | |
c2f09c75 TG |
4432 | |
4433 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
4434 | { | |
4435 | free (buf); | |
4436 | return -1; | |
4437 | } | |
4438 | ||
3af9a47b | 4439 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 4440 | |
3af9a47b | 4441 | if (nread != size) |
515ef31d NC |
4442 | { |
4443 | free (buf); | |
4444 | return -1; | |
4445 | } | |
a95a4550 | 4446 | |
3af9a47b NC |
4447 | for (offset = 4; offset <= size; offset += 4) |
4448 | { | |
e84d6fca | 4449 | unsigned long val; |
3af9a47b | 4450 | |
e84d6fca | 4451 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
4452 | if (! found_nonnull) |
4453 | { | |
4454 | if (val != 0) | |
4455 | found_nonnull = 1; | |
4456 | } | |
4457 | else if (val == 0x0) | |
4458 | { | |
e84d6fca AM |
4459 | unsigned long bottom; |
4460 | unsigned long top; | |
3af9a47b | 4461 | |
e84d6fca AM |
4462 | bottom = seg->fileoff + seg->filesize - offset; |
4463 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
4464 | *rbuf = bfd_malloc (top - bottom); |
4465 | *rlen = top - bottom; | |
4466 | ||
4467 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 4468 | free (buf); |
3af9a47b NC |
4469 | return 0; |
4470 | } | |
4471 | } | |
4472 | ||
4473 | if (size == (end - start)) | |
4474 | break; | |
4475 | ||
4476 | size *= 2; | |
4477 | } | |
515ef31d NC |
4478 | |
4479 | free (buf); | |
3af9a47b NC |
4480 | } |
4481 | } | |
4482 | ||
4483 | return -1; | |
4484 | } | |
4485 | ||
4486 | char * | |
116c20d2 | 4487 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
4488 | { |
4489 | unsigned char *buf = NULL; | |
4490 | unsigned int len = 0; | |
4491 | int ret = -1; | |
4492 | ||
4493 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
4494 | if (ret < 0) | |
4495 | return NULL; | |
4496 | ||
f075ee0c | 4497 | return (char *) buf; |
3af9a47b NC |
4498 | } |
4499 | ||
4500 | int | |
116c20d2 | 4501 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
4502 | { |
4503 | return 0; | |
4504 | } | |
4505 | ||
2ca7691a TG |
4506 | static bfd_mach_o_uuid_command * |
4507 | bfd_mach_o_lookup_uuid_command (bfd *abfd) | |
4508 | { | |
4509 | bfd_mach_o_load_command *uuid_cmd; | |
4510 | int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd); | |
4511 | if (ncmd != 1) | |
4512 | return FALSE; | |
4513 | return &uuid_cmd->command.uuid; | |
4514 | } | |
4515 | ||
4516 | /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */ | |
4517 | ||
4518 | static bfd_boolean | |
4519 | bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd) | |
4520 | { | |
4521 | bfd_mach_o_uuid_command *dsym_uuid_cmd; | |
4522 | ||
4523 | BFD_ASSERT (abfd); | |
4524 | BFD_ASSERT (uuid_cmd); | |
4525 | ||
4526 | if (!bfd_check_format (abfd, bfd_object)) | |
4527 | return FALSE; | |
4528 | ||
4529 | if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour | |
4530 | || bfd_mach_o_get_data (abfd) == NULL | |
4531 | || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM) | |
4532 | return FALSE; | |
4533 | ||
4534 | dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
4535 | if (dsym_uuid_cmd == NULL) | |
4536 | return FALSE; | |
4537 | ||
4538 | if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid, | |
4539 | sizeof (uuid_cmd->uuid)) != 0) | |
4540 | return FALSE; | |
4541 | ||
4542 | return TRUE; | |
4543 | } | |
4544 | ||
4545 | /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD. | |
4546 | The caller is responsible for closing the returned BFD object and | |
4547 | its my_archive if the returned BFD is in a fat dSYM. */ | |
4548 | ||
4549 | static bfd * | |
4550 | bfd_mach_o_find_dsym (const char *dsym_filename, | |
4551 | const bfd_mach_o_uuid_command *uuid_cmd, | |
4552 | const bfd_arch_info_type *arch) | |
4553 | { | |
4554 | bfd *base_dsym_bfd, *dsym_bfd; | |
4555 | ||
4556 | BFD_ASSERT (uuid_cmd); | |
4557 | ||
4558 | base_dsym_bfd = bfd_openr (dsym_filename, NULL); | |
4559 | if (base_dsym_bfd == NULL) | |
4560 | return NULL; | |
4561 | ||
4562 | dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch); | |
4563 | if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd)) | |
4564 | return dsym_bfd; | |
4565 | ||
4566 | bfd_close (dsym_bfd); | |
4567 | if (base_dsym_bfd != dsym_bfd) | |
4568 | bfd_close (base_dsym_bfd); | |
4569 | ||
4570 | return NULL; | |
4571 | } | |
4572 | ||
4573 | /* Return a BFD created from a dSYM file for ABFD. | |
4574 | The caller is responsible for closing the returned BFD object, its | |
4575 | filename, and its my_archive if the returned BFD is in a fat dSYM. */ | |
4576 | ||
4577 | static bfd * | |
4578 | bfd_mach_o_follow_dsym (bfd *abfd) | |
4579 | { | |
4580 | char *dsym_filename; | |
4581 | bfd_mach_o_uuid_command *uuid_cmd; | |
4582 | bfd *dsym_bfd, *base_bfd = abfd; | |
4583 | const char *base_basename; | |
4584 | ||
4585 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour) | |
4586 | return NULL; | |
4587 | ||
4588 | if (abfd->my_archive) | |
4589 | base_bfd = abfd->my_archive; | |
4590 | /* BFD may have been opened from a stream. */ | |
4591 | if (base_bfd->filename == NULL) | |
4592 | { | |
4593 | bfd_set_error (bfd_error_invalid_operation); | |
4594 | return NULL; | |
4595 | } | |
4596 | base_basename = lbasename (base_bfd->filename); | |
4597 | ||
4598 | uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd); | |
4599 | if (uuid_cmd == NULL) | |
4600 | return NULL; | |
4601 | ||
4602 | /* TODO: We assume the DWARF file has the same as the binary's. | |
4603 | It seems apple's GDB checks all files in the dSYM bundle directory. | |
4604 | http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c | |
4605 | */ | |
4606 | dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename) | |
4607 | + strlen (dsym_subdir) + 1 | |
4608 | + strlen (base_basename) + 1); | |
4609 | sprintf (dsym_filename, "%s%s/%s", | |
4610 | base_bfd->filename, dsym_subdir, base_basename); | |
4611 | ||
4612 | dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd, | |
4613 | bfd_get_arch_info (abfd)); | |
4614 | if (dsym_bfd == NULL) | |
4615 | free (dsym_filename); | |
4616 | ||
4617 | return dsym_bfd; | |
4618 | } | |
4619 | ||
d9071b0c TG |
4620 | bfd_boolean |
4621 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
4622 | asection *section, | |
4623 | asymbol **symbols, | |
4624 | bfd_vma offset, | |
4625 | const char **filename_ptr, | |
4626 | const char **functionname_ptr, | |
4627 | unsigned int *line_ptr) | |
4628 | { | |
4629 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
2ca7691a | 4630 | if (mdata == NULL) |
d9071b0c | 4631 | return FALSE; |
2ca7691a TG |
4632 | switch (mdata->header.filetype) |
4633 | { | |
4634 | case BFD_MACH_O_MH_OBJECT: | |
4635 | break; | |
4636 | case BFD_MACH_O_MH_EXECUTE: | |
4637 | case BFD_MACH_O_MH_DYLIB: | |
4638 | case BFD_MACH_O_MH_BUNDLE: | |
4639 | case BFD_MACH_O_MH_KEXT_BUNDLE: | |
4640 | if (mdata->dwarf2_find_line_info == NULL) | |
4641 | { | |
4642 | mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd); | |
4643 | /* When we couldn't find dSYM for this binary, we look for | |
4644 | the debug information in the binary itself. In this way, | |
4645 | we won't try finding separated dSYM again because | |
4646 | mdata->dwarf2_find_line_info will be filled. */ | |
4647 | if (! mdata->dsym_bfd) | |
4648 | break; | |
4649 | if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd, | |
4650 | dwarf_debug_sections, symbols, | |
4651 | &mdata->dwarf2_find_line_info)) | |
4652 | return FALSE; | |
4653 | } | |
4654 | break; | |
4655 | default: | |
4656 | return FALSE; | |
4657 | } | |
d9071b0c TG |
4658 | if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections, |
4659 | section, symbols, offset, | |
4660 | filename_ptr, functionname_ptr, | |
4661 | line_ptr, 0, | |
4662 | &mdata->dwarf2_find_line_info)) | |
4663 | return TRUE; | |
4664 | return FALSE; | |
4665 | } | |
4666 | ||
4667 | bfd_boolean | |
4668 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
4669 | { | |
4670 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
4671 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
4434114c TG |
4672 | { |
4673 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
4674 | bfd_mach_o_free_cached_info (abfd); | |
2ca7691a TG |
4675 | if (mdata->dsym_bfd != NULL) |
4676 | { | |
4677 | bfd *fat_bfd = mdata->dsym_bfd->my_archive; | |
4678 | char *dsym_filename = (char *)(fat_bfd | |
4679 | ? fat_bfd->filename | |
4680 | : mdata->dsym_bfd->filename); | |
4681 | bfd_close (mdata->dsym_bfd); | |
4682 | mdata->dsym_bfd = NULL; | |
4683 | if (fat_bfd) | |
4684 | bfd_close (fat_bfd); | |
4685 | free (dsym_filename); | |
4686 | } | |
4434114c | 4687 | } |
dff55db0 | 4688 | |
d9071b0c TG |
4689 | return _bfd_generic_close_and_cleanup (abfd); |
4690 | } | |
4691 | ||
dff55db0 TG |
4692 | bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd) |
4693 | { | |
4694 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
4695 | asection *asect; | |
4696 | free (mdata->dyn_reloc_cache); | |
4697 | mdata->dyn_reloc_cache = NULL; | |
4698 | for (asect = abfd->sections; asect != NULL; asect = asect->next) | |
4699 | { | |
4700 | free (asect->relocation); | |
4701 | asect->relocation = NULL; | |
4702 | } | |
4703 | ||
4704 | return TRUE; | |
4705 | } | |
4706 | ||
92bc0e80 TG |
4707 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
4708 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup | |
4709 | ||
4710 | #define bfd_mach_o_swap_reloc_in NULL | |
4711 | #define bfd_mach_o_swap_reloc_out NULL | |
b32e07d7 | 4712 | #define bfd_mach_o_print_thread NULL |
a4551119 | 4713 | #define bfd_mach_o_tgt_seg_table NULL |
ab76eeaf | 4714 | #define bfd_mach_o_section_type_valid_for_tgt NULL |
92bc0e80 | 4715 | |
116c20d2 NC |
4716 | #define TARGET_NAME mach_o_be_vec |
4717 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 4718 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
4719 | #define TARGET_BIG_ENDIAN 1 |
4720 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 4721 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
4722 | #include "mach-o-target.c" |
4723 | ||
4724 | #undef TARGET_NAME | |
4725 | #undef TARGET_STRING | |
42fa0891 | 4726 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
4727 | #undef TARGET_BIG_ENDIAN |
4728 | #undef TARGET_ARCHIVE | |
b93a1992 | 4729 | #undef TARGET_PRIORITY |
3af9a47b | 4730 | |
116c20d2 NC |
4731 | #define TARGET_NAME mach_o_le_vec |
4732 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 4733 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
4734 | #define TARGET_BIG_ENDIAN 0 |
4735 | #define TARGET_ARCHIVE 0 | |
b93a1992 | 4736 | #define TARGET_PRIORITY 1 |
3af9a47b NC |
4737 | |
4738 | #include "mach-o-target.c" | |
4739 | ||
4740 | #undef TARGET_NAME | |
4741 | #undef TARGET_STRING | |
42fa0891 | 4742 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
4743 | #undef TARGET_BIG_ENDIAN |
4744 | #undef TARGET_ARCHIVE | |
b93a1992 | 4745 | #undef TARGET_PRIORITY |
3af9a47b | 4746 | |
8f95b6e4 TG |
4747 | /* Not yet handled: creating an archive. */ |
4748 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive | |
4749 | ||
4750 | /* Not used. */ | |
4751 | #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr | |
4752 | #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr | |
4753 | #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap | |
4754 | #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table | |
4755 | #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table | |
4756 | #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname | |
4757 | #define bfd_mach_o_write_armap _bfd_noarchive_write_armap | |
4758 | #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index | |
4759 | #define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt | |
4760 | #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp | |
4761 | ||
116c20d2 NC |
4762 | #define TARGET_NAME mach_o_fat_vec |
4763 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 4764 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
4765 | #define TARGET_BIG_ENDIAN 1 |
4766 | #define TARGET_ARCHIVE 1 | |
b93a1992 | 4767 | #define TARGET_PRIORITY 0 |
3af9a47b NC |
4768 | |
4769 | #include "mach-o-target.c" | |
4770 | ||
4771 | #undef TARGET_NAME | |
4772 | #undef TARGET_STRING | |
42fa0891 | 4773 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
4774 | #undef TARGET_BIG_ENDIAN |
4775 | #undef TARGET_ARCHIVE | |
b93a1992 | 4776 | #undef TARGET_PRIORITY |