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, |
4a97a0e5 | 3 | 2009, 2010, 2011 |
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 NC |
31 | #include <ctype.h> |
32 | ||
154a1ee5 TG |
33 | #define bfd_mach_o_object_p bfd_mach_o_gen_object_p |
34 | #define bfd_mach_o_core_p bfd_mach_o_gen_core_p | |
42fa0891 | 35 | #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject |
116c20d2 | 36 | |
92bc0e80 TG |
37 | #define FILE_ALIGN(off, algn) \ |
38 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn))) | |
39 | ||
c2f09c75 | 40 | unsigned int |
1e8a024a TG |
41 | bfd_mach_o_version (bfd *abfd) |
42 | { | |
43 | bfd_mach_o_data_struct *mdata = NULL; | |
44 | ||
45 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
046b007d | 46 | mdata = bfd_mach_o_get_data (abfd); |
1e8a024a TG |
47 | |
48 | return mdata->header.version; | |
49 | } | |
50 | ||
b34976b6 | 51 | bfd_boolean |
116c20d2 | 52 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
53 | { |
54 | if (abfd == NULL || abfd->xvec == NULL) | |
154a1ee5 | 55 | return FALSE; |
3af9a47b | 56 | |
154a1ee5 TG |
57 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
58 | return FALSE; | |
3af9a47b | 59 | |
046b007d | 60 | if (bfd_mach_o_get_data (abfd) == NULL) |
154a1ee5 TG |
61 | return FALSE; |
62 | return TRUE; | |
63 | } | |
64 | ||
c2f09c75 TG |
65 | static INLINE bfd_boolean |
66 | mach_o_wide_p (bfd_mach_o_header *header) | |
67 | { | |
68 | switch (header->version) | |
69 | { | |
70 | case 1: | |
71 | return FALSE; | |
72 | case 2: | |
73 | return TRUE; | |
74 | default: | |
75 | BFD_FAIL (); | |
76 | return FALSE; | |
77 | } | |
78 | } | |
79 | ||
80 | static INLINE bfd_boolean | |
81 | bfd_mach_o_wide_p (bfd *abfd) | |
82 | { | |
046b007d | 83 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
c2f09c75 TG |
84 | } |
85 | ||
154a1ee5 TG |
86 | /* Tables to translate well known Mach-O segment/section names to bfd |
87 | names. Use of canonical names (such as .text or .debug_frame) is required | |
88 | by gdb. */ | |
89 | ||
a4551119 TG |
90 | /* __TEXT Segment. */ |
91 | static const mach_o_section_name_xlat text_section_names_xlat[] = | |
154a1ee5 | 92 | { |
a4551119 TG |
93 | { ".text", "__text", |
94 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
95 | BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0}, | |
96 | { ".const", "__const", | |
97 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
98 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
99 | { ".static_const", "__static_const", | |
100 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
101 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
102 | { ".cstring", "__cstring", | |
103 | SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS, | |
104 | BFD_MACH_O_S_CSTRING_LITERALS, | |
105 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
106 | { ".literal4", "__literal4", | |
107 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS, | |
108 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
109 | { ".literal8", "__literal8", | |
110 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS, | |
111 | BFD_MACH_O_S_ATTR_NONE, 3}, | |
112 | { ".literal16", "__literal16", | |
113 | SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS, | |
114 | BFD_MACH_O_S_ATTR_NONE, 4}, | |
115 | { ".constructor", "__constructor", | |
116 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
117 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
118 | { ".destructor", "__destructor", | |
119 | SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
120 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
121 | { ".eh_frame", "__eh_frame", | |
122 | SEC_READONLY | SEC_LOAD, BFD_MACH_O_S_COALESCED, | |
123 | BFD_MACH_O_S_ATTR_LIVE_SUPPORT | |
124 | | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS | |
125 | | BFD_MACH_O_S_ATTR_NO_TOC, 3}, | |
126 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
127 | }; |
128 | ||
a4551119 TG |
129 | /* __DATA Segment. */ |
130 | static const mach_o_section_name_xlat data_section_names_xlat[] = | |
154a1ee5 | 131 | { |
a4551119 TG |
132 | { ".data", "__data", |
133 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
134 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
135 | { ".bss", "__bss", | |
136 | SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL, | |
137 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
138 | { ".const_data", "__const", | |
139 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
140 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
141 | { ".static_data", "__static_data", | |
142 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
143 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
144 | { ".mod_init_func", "__mod_init_func", | |
145 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS, | |
146 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
147 | { ".mod_term_func", "__mod_term_func", | |
148 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS, | |
149 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
150 | { ".dyld", "__dyld", | |
151 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
152 | BFD_MACH_O_S_ATTR_NONE, 0}, | |
153 | { ".cfstring", "__cfstring", | |
154 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
155 | BFD_MACH_O_S_ATTR_NONE, 2}, | |
156 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
157 | }; |
158 | ||
a4551119 TG |
159 | /* __DWARF Segment. */ |
160 | static const mach_o_section_name_xlat dwarf_section_names_xlat[] = | |
154a1ee5 | 161 | { |
a4551119 TG |
162 | { ".debug_frame", "__debug_frame", |
163 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
164 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
165 | { ".debug_info", "__debug_info", | |
166 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
167 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
168 | { ".debug_abbrev", "__debug_abbrev", | |
169 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
170 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
171 | { ".debug_aranges", "__debug_aranges", | |
172 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
173 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
174 | { ".debug_macinfo", "__debug_macinfo", | |
175 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
176 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
177 | { ".debug_line", "__debug_line", | |
178 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
179 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
180 | { ".debug_loc", "__debug_loc", | |
181 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
182 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
183 | { ".debug_pubnames", "__debug_pubnames", | |
184 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
185 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
186 | { ".debug_pubtypes", "__debug_pubtypes", | |
187 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
188 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
189 | { ".debug_str", "__debug_str", | |
190 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
191 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
192 | { ".debug_ranges", "__debug_ranges", | |
193 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
194 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
195 | { ".debug_macro", "__debug_macro", | |
196 | SEC_DEBUGGING, BFD_MACH_O_S_REGULAR, | |
197 | BFD_MACH_O_S_ATTR_DEBUG, 0}, | |
198 | { NULL, NULL, 0, 0, 0, 0} | |
154a1ee5 TG |
199 | }; |
200 | ||
a4551119 TG |
201 | /* __OBJC Segment. */ |
202 | static const mach_o_section_name_xlat objc_section_names_xlat[] = | |
203 | { | |
204 | { ".objc_class", "__class", | |
205 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
206 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
207 | { ".objc_meta_class", "__meta_class", | |
208 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
209 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
210 | { ".objc_cat_cls_meth", "__cat_cls_meth", | |
211 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
212 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
213 | { ".objc_cat_inst_meth", "__cat_inst_meth", | |
214 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
215 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
216 | { ".objc_protocol", "__protocol", | |
217 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
218 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
219 | { ".objc_string_object", "__string_object", | |
220 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
221 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
222 | { ".objc_cls_meth", "__cls_meth", | |
223 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
224 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
225 | { ".objc_inst_meth", "__inst_meth", | |
226 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
227 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
228 | { ".objc_cls_refs", "__cls_refs", | |
229 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
230 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
231 | { ".objc_message_refs", "__message_refs", | |
232 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS, | |
233 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
234 | { ".objc_symbols", "__symbols", | |
235 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
236 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
237 | { ".objc_category", "__category", | |
238 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
239 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
240 | { ".objc_class_vars", "__class_vars", | |
241 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
242 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
243 | { ".objc_instance_vars", "__instance_vars", | |
244 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
245 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
246 | { ".objc_module_info", "__module_info", | |
247 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
248 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
249 | { ".objc_selector_strs", "__selector_strs", | |
250 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS, | |
251 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
252 | { ".objc_image_info", "__image_info", | |
253 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
254 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
255 | { ".objc_selector_fixup", "__sel_fixup", | |
256 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
257 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
258 | /* Objc V1 */ | |
259 | { ".objc1_class_ext", "__class_ext", | |
260 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
261 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
262 | { ".objc1_property_list", "__property", | |
263 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
264 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
265 | { ".objc1_protocol_ext", "__protocol_ext", | |
266 | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR, | |
267 | BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0}, | |
268 | { NULL, NULL, 0, 0, 0, 0} | |
269 | }; | |
5a5cbf72 | 270 | |
a4551119 | 271 | static const mach_o_segment_name_xlat segsec_names_xlat[] = |
154a1ee5 | 272 | { |
154a1ee5 TG |
273 | { "__TEXT", text_section_names_xlat }, |
274 | { "__DATA", data_section_names_xlat }, | |
5a5cbf72 | 275 | { "__DWARF", dwarf_section_names_xlat }, |
a4551119 | 276 | { "__OBJC", objc_section_names_xlat }, |
154a1ee5 TG |
277 | { NULL, NULL } |
278 | }; | |
279 | ||
a4551119 TG |
280 | /* For both cases bfd-name => mach-o name and vice versa, the specific target |
281 | is checked before the generic. This allows a target (e.g. ppc for cstring) | |
282 | to override the generic definition with a more specific one. */ | |
154a1ee5 | 283 | |
a4551119 TG |
284 | /* Fetch the translation from a Mach-O section designation (segment, section) |
285 | as a bfd short name, if one exists. Otherwise return NULL. | |
286 | ||
287 | Allow the segment and section names to be unterminated 16 byte arrays. */ | |
288 | ||
289 | const mach_o_section_name_xlat * | |
290 | bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname, | |
291 | const char *sectname) | |
154a1ee5 TG |
292 | { |
293 | const struct mach_o_segment_name_xlat *seg; | |
a4551119 TG |
294 | const mach_o_section_name_xlat *sec; |
295 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
154a1ee5 | 296 | |
a4551119 TG |
297 | /* First try any target-specific translations defined... */ |
298 | if (bed->segsec_names_xlat) | |
299 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
300 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) | |
301 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
302 | if (strncmp (sec->mach_o_name, sectname, | |
303 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
304 | return sec; | |
8462aec7 | 305 | |
a4551119 | 306 | /* ... and then the Mach-O generic ones. */ |
154a1ee5 | 307 | for (seg = segsec_names_xlat; seg->segname; seg++) |
a4551119 TG |
308 | if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0) |
309 | for (sec = seg->sections; sec->mach_o_name; sec++) | |
310 | if (strncmp (sec->mach_o_name, sectname, | |
311 | BFD_MACH_O_SECTNAME_SIZE) == 0) | |
312 | return sec; | |
154a1ee5 | 313 | |
a4551119 | 314 | return NULL; |
53d58d96 TG |
315 | } |
316 | ||
a4551119 TG |
317 | /* If the bfd_name for this section is a 'canonical' form for which we |
318 | know the Mach-O data, return the segment name and the data for the | |
319 | Mach-O equivalent. Otherwise return NULL. */ | |
7ba695a9 | 320 | |
a4551119 TG |
321 | const mach_o_section_name_xlat * |
322 | bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name, | |
323 | const char **segname) | |
53d58d96 | 324 | { |
a4551119 TG |
325 | const struct mach_o_segment_name_xlat *seg; |
326 | const mach_o_section_name_xlat *sec; | |
327 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
328 | *segname = NULL; | |
329 | ||
330 | if (bfd_name[0] != '.') | |
331 | return NULL; | |
332 | ||
333 | /* First try any target-specific translations defined... */ | |
334 | if (bed->segsec_names_xlat) | |
335 | for (seg = bed->segsec_names_xlat; seg->segname; seg++) | |
336 | for (sec = seg->sections; sec->bfd_name; sec++) | |
337 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
338 | { | |
339 | *segname = seg->segname; | |
340 | return sec; | |
341 | } | |
342 | ||
343 | /* ... and then the Mach-O generic ones. */ | |
344 | for (seg = segsec_names_xlat; seg->segname; seg++) | |
345 | for (sec = seg->sections; sec->bfd_name; sec++) | |
346 | if (strcmp (bfd_name, sec->bfd_name) == 0) | |
347 | { | |
348 | *segname = seg->segname; | |
349 | return sec; | |
350 | } | |
351 | ||
352 | return NULL; | |
353 | } | |
354 | ||
355 | /* Convert Mach-O section name to BFD. | |
356 | ||
357 | Try to use standard/canonical names, for which we have tables including | |
358 | default flag settings - which are returned. Otherwise forge a new name | |
359 | in the form "<segmentname>.<sectionname>" this will be prefixed with | |
360 | LC_SEGMENT. if the segment name does not begin with an underscore. | |
361 | ||
362 | SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL- | |
363 | terminated if the name length is exactly 16 bytes - but must be if the name | |
364 | length is less than 16 characters). */ | |
365 | ||
366 | void | |
367 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname, | |
368 | const char *secname, const char **name, | |
369 | flagword *flags) | |
370 | { | |
371 | const mach_o_section_name_xlat *xlat; | |
53d58d96 TG |
372 | char *res; |
373 | unsigned int len; | |
374 | const char *pfx = ""; | |
375 | ||
a4551119 TG |
376 | *name = NULL; |
377 | *flags = SEC_NO_FLAGS; | |
53d58d96 | 378 | |
a4551119 TG |
379 | /* First search for a canonical name... |
380 | xlat will be non-null if there is an entry for segname, secname. */ | |
381 | xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname); | |
382 | if (xlat) | |
383 | { | |
384 | len = strlen (xlat->bfd_name); | |
385 | res = bfd_alloc (abfd, len+1); | |
386 | if (res == NULL) | |
387 | return; | |
388 | memcpy (res, xlat->bfd_name, len+1); | |
389 | *name = res; | |
390 | *flags = xlat->bfd_flags; | |
391 | return; | |
392 | } | |
393 | ||
394 | /* ... else we make up a bfd name from the segment concatenated with the | |
395 | section. */ | |
154a1ee5 | 396 | |
7ba695a9 | 397 | len = 16 + 1 + 16 + 1; |
154a1ee5 | 398 | |
c2f09c75 TG |
399 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
400 | with an underscore. */ | |
f1bde64c | 401 | if (segname[0] != '_') |
c2f09c75 TG |
402 | { |
403 | static const char seg_pfx[] = "LC_SEGMENT."; | |
404 | ||
405 | pfx = seg_pfx; | |
406 | len += sizeof (seg_pfx) - 1; | |
407 | } | |
408 | ||
154a1ee5 TG |
409 | res = bfd_alloc (abfd, len); |
410 | if (res == NULL) | |
8462aec7 | 411 | return; |
a4551119 | 412 | snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname); |
8462aec7 | 413 | *name = res; |
154a1ee5 TG |
414 | } |
415 | ||
a4551119 | 416 | /* Convert a bfd section name to a Mach-O segment + section name. |
154a1ee5 | 417 | |
a4551119 TG |
418 | If the name is a canonical one for which we have a Darwin match |
419 | return the translation table - which contains defaults for flags, | |
420 | type, attribute and default alignment data. | |
421 | ||
422 | Otherwise, expand the bfd_name (assumed to be in the form | |
423 | "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */ | |
424 | ||
425 | static const mach_o_section_name_xlat * | |
154a1ee5 TG |
426 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
427 | asection *sect, | |
428 | bfd_mach_o_section *section) | |
429 | { | |
a4551119 | 430 | const mach_o_section_name_xlat *xlat; |
154a1ee5 | 431 | const char *name = bfd_get_section_name (abfd, sect); |
a4551119 | 432 | const char *segname; |
154a1ee5 TG |
433 | const char *dot; |
434 | unsigned int len; | |
435 | unsigned int seglen; | |
436 | unsigned int seclen; | |
437 | ||
a4551119 TG |
438 | memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1); |
439 | memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1); | |
440 | ||
441 | /* See if is a canonical name ... */ | |
442 | xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname); | |
443 | if (xlat) | |
444 | { | |
445 | strcpy (section->segname, segname); | |
446 | strcpy (section->sectname, xlat->mach_o_name); | |
447 | return xlat; | |
448 | } | |
154a1ee5 | 449 | |
a4551119 TG |
450 | /* .. else we convert our constructed one back to Mach-O. |
451 | Strip LC_SEGMENT. prefix, if present. */ | |
154a1ee5 TG |
452 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
453 | name += 11; | |
454 | ||
455 | /* Find a dot. */ | |
456 | dot = strchr (name, '.'); | |
457 | len = strlen (name); | |
458 | ||
459 | /* Try to split name into segment and section names. */ | |
460 | if (dot && dot != name) | |
461 | { | |
462 | seglen = dot - name; | |
463 | seclen = len - (dot + 1 - name); | |
464 | ||
465 | if (seglen < 16 && seclen < 16) | |
466 | { | |
467 | memcpy (section->segname, name, seglen); | |
468 | section->segname[seglen] = 0; | |
469 | memcpy (section->sectname, dot + 1, seclen); | |
470 | section->sectname[seclen] = 0; | |
a4551119 | 471 | return NULL; |
154a1ee5 TG |
472 | } |
473 | } | |
474 | ||
a4551119 TG |
475 | /* The segment and section names are both missing - don't make them |
476 | into dots. */ | |
477 | if (dot && dot == name) | |
478 | return NULL; | |
479 | ||
480 | /* Just duplicate the name into both segment and section. */ | |
154a1ee5 TG |
481 | if (len > 16) |
482 | len = 16; | |
483 | memcpy (section->segname, name, len); | |
484 | section->segname[len] = 0; | |
485 | memcpy (section->sectname, name, len); | |
486 | section->sectname[len] = 0; | |
a4551119 | 487 | return NULL; |
3af9a47b NC |
488 | } |
489 | ||
b2b62060 TG |
490 | /* Return the size of an entry for section SEC. |
491 | Must be called only for symbol pointer section and symbol stubs | |
492 | sections. */ | |
493 | ||
c5012cd8 | 494 | unsigned int |
b2b62060 TG |
495 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
496 | { | |
497 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
498 | { | |
499 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
500 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
501 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; | |
502 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
503 | return sec->reserved2; | |
504 | default: | |
505 | BFD_FAIL (); | |
506 | return 0; | |
507 | } | |
508 | } | |
509 | ||
510 | /* Return the number of indirect symbols for a section. | |
511 | Must be called only for symbol pointer section and symbol stubs | |
512 | sections. */ | |
513 | ||
c5012cd8 | 514 | unsigned int |
b2b62060 TG |
515 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
516 | { | |
517 | unsigned int elsz; | |
518 | ||
519 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); | |
520 | if (elsz == 0) | |
521 | return 0; | |
522 | else | |
523 | return sec->size / elsz; | |
524 | } | |
525 | ||
526 | ||
3af9a47b NC |
527 | /* Copy any private info we understand from the input symbol |
528 | to the output symbol. */ | |
529 | ||
154a1ee5 | 530 | bfd_boolean |
116c20d2 NC |
531 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
532 | asymbol *isymbol ATTRIBUTE_UNUSED, | |
533 | bfd *obfd ATTRIBUTE_UNUSED, | |
534 | asymbol *osymbol ATTRIBUTE_UNUSED) | |
3af9a47b | 535 | { |
b34976b6 | 536 | return TRUE; |
3af9a47b NC |
537 | } |
538 | ||
539 | /* Copy any private info we understand from the input section | |
540 | to the output section. */ | |
541 | ||
154a1ee5 | 542 | bfd_boolean |
116c20d2 | 543 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, |
a4551119 | 544 | asection *isection, |
116c20d2 | 545 | bfd *obfd ATTRIBUTE_UNUSED, |
a4551119 TG |
546 | asection *osection) |
547 | { | |
548 | if (osection->used_by_bfd == NULL) | |
549 | osection->used_by_bfd = isection->used_by_bfd; | |
550 | else | |
551 | if (isection->used_by_bfd != NULL) | |
552 | memcpy (osection->used_by_bfd, isection->used_by_bfd, | |
553 | sizeof (bfd_mach_o_section)); | |
554 | ||
555 | if (osection->used_by_bfd != NULL) | |
556 | ((bfd_mach_o_section *)osection->used_by_bfd)->bfdsection = osection; | |
557 | ||
b34976b6 | 558 | return TRUE; |
3af9a47b NC |
559 | } |
560 | ||
561 | /* Copy any private info we understand from the input bfd | |
562 | to the output bfd. */ | |
563 | ||
154a1ee5 | 564 | bfd_boolean |
116c20d2 | 565 | bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
3af9a47b | 566 | { |
154a1ee5 TG |
567 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
568 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) | |
569 | return TRUE; | |
570 | ||
3af9a47b NC |
571 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
572 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
573 | ||
154a1ee5 TG |
574 | /* FIXME: copy commands. */ |
575 | ||
b34976b6 | 576 | return TRUE; |
3af9a47b NC |
577 | } |
578 | ||
046b007d | 579 | /* Count the total number of symbols. */ |
154a1ee5 | 580 | |
3af9a47b | 581 | static long |
116c20d2 | 582 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b | 583 | { |
046b007d | 584 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 585 | |
046b007d TG |
586 | if (mdata->symtab == NULL) |
587 | return 0; | |
588 | return mdata->symtab->nsyms; | |
3af9a47b NC |
589 | } |
590 | ||
154a1ee5 | 591 | long |
116c20d2 | 592 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
593 | { |
594 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
595 | ||
3af9a47b NC |
596 | return ((nsyms + 1) * sizeof (asymbol *)); |
597 | } | |
598 | ||
154a1ee5 | 599 | long |
116c20d2 | 600 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b | 601 | { |
046b007d | 602 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 603 | long nsyms = bfd_mach_o_count_symbols (abfd); |
046b007d TG |
604 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
605 | unsigned long j; | |
3af9a47b NC |
606 | |
607 | if (nsyms < 0) | |
608 | return nsyms; | |
609 | ||
092d27ff TG |
610 | if (nsyms == 0) |
611 | { | |
612 | /* Do not try to read symbols if there are none. */ | |
613 | alocation[0] = NULL; | |
614 | return 0; | |
615 | } | |
616 | ||
afbb9e17 | 617 | if (!bfd_mach_o_read_symtab_symbols (abfd)) |
3af9a47b | 618 | { |
afbb9e17 TG |
619 | (*_bfd_error_handler) |
620 | (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); | |
046b007d TG |
621 | return 0; |
622 | } | |
3af9a47b | 623 | |
046b007d | 624 | BFD_ASSERT (sym->symbols != NULL); |
3af9a47b | 625 | |
046b007d TG |
626 | for (j = 0; j < sym->nsyms; j++) |
627 | alocation[j] = &sym->symbols[j].symbol; | |
3af9a47b | 628 | |
046b007d | 629 | alocation[j] = NULL; |
a95a4550 | 630 | |
3af9a47b NC |
631 | return nsyms; |
632 | } | |
633 | ||
b2b62060 TG |
634 | long |
635 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, | |
636 | long symcount ATTRIBUTE_UNUSED, | |
637 | asymbol **syms ATTRIBUTE_UNUSED, | |
638 | long dynsymcount ATTRIBUTE_UNUSED, | |
639 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
640 | asymbol **ret) | |
641 | { | |
642 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
643 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
644 | bfd_mach_o_symtab_command *symtab = mdata->symtab; | |
645 | asymbol *s; | |
646 | unsigned long count, i, j, n; | |
647 | size_t size; | |
648 | char *names; | |
649 | char *nul_name; | |
650 | ||
651 | *ret = NULL; | |
652 | ||
653 | if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL) | |
654 | return 0; | |
655 | ||
656 | if (dysymtab->nindirectsyms == 0) | |
657 | return 0; | |
658 | ||
659 | count = dysymtab->nindirectsyms; | |
660 | size = count * sizeof (asymbol) + 1; | |
661 | ||
662 | for (j = 0; j < count; j++) | |
663 | { | |
664 | unsigned int isym = dysymtab->indirect_syms[j]; | |
665 | ||
666 | if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name) | |
667 | size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub"); | |
668 | } | |
669 | ||
670 | s = *ret = (asymbol *) bfd_malloc (size); | |
671 | if (s == NULL) | |
672 | return -1; | |
673 | names = (char *) (s + count); | |
674 | nul_name = names; | |
675 | *names++ = 0; | |
676 | ||
677 | n = 0; | |
678 | for (i = 0; i < mdata->nsects; i++) | |
679 | { | |
680 | bfd_mach_o_section *sec = mdata->sections[i]; | |
91d6fa6a | 681 | unsigned int first, last; |
b2b62060 TG |
682 | bfd_vma addr; |
683 | bfd_vma entry_size; | |
684 | ||
685 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
686 | { | |
687 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: | |
688 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: | |
689 | case BFD_MACH_O_S_SYMBOL_STUBS: | |
690 | first = sec->reserved1; | |
691 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); | |
692 | addr = sec->addr; | |
693 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); | |
694 | for (j = first; j < last; j++) | |
695 | { | |
696 | unsigned int isym = dysymtab->indirect_syms[j]; | |
697 | ||
698 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; | |
699 | s->section = sec->bfdsection; | |
700 | s->value = addr - sec->addr; | |
701 | s->udata.p = NULL; | |
702 | ||
703 | if (isym < symtab->nsyms | |
704 | && symtab->symbols[isym].symbol.name) | |
705 | { | |
706 | const char *sym = symtab->symbols[isym].symbol.name; | |
707 | size_t len; | |
708 | ||
709 | s->name = names; | |
710 | len = strlen (sym); | |
711 | memcpy (names, sym, len); | |
712 | names += len; | |
713 | memcpy (names, "$stub", sizeof ("$stub")); | |
714 | names += sizeof ("$stub"); | |
715 | } | |
716 | else | |
717 | s->name = nul_name; | |
718 | ||
719 | addr += entry_size; | |
720 | s++; | |
721 | n++; | |
722 | } | |
723 | break; | |
724 | default: | |
725 | break; | |
726 | } | |
727 | } | |
728 | ||
729 | return n; | |
730 | } | |
731 | ||
154a1ee5 | 732 | void |
116c20d2 NC |
733 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
734 | asymbol *symbol, | |
735 | symbol_info *ret) | |
3af9a47b NC |
736 | { |
737 | bfd_symbol_info (symbol, ret); | |
738 | } | |
739 | ||
154a1ee5 | 740 | void |
116c20d2 | 741 | bfd_mach_o_print_symbol (bfd *abfd, |
91d6fa6a | 742 | void * afile, |
116c20d2 NC |
743 | asymbol *symbol, |
744 | bfd_print_symbol_type how) | |
3af9a47b NC |
745 | { |
746 | FILE *file = (FILE *) afile; | |
15e1c58a | 747 | const char *name; |
92bc0e80 | 748 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
3af9a47b NC |
749 | |
750 | switch (how) | |
751 | { | |
752 | case bfd_print_symbol_name: | |
753 | fprintf (file, "%s", symbol->name); | |
754 | break; | |
755 | default: | |
91d6fa6a | 756 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
92bc0e80 TG |
757 | if (asym->n_type & BFD_MACH_O_N_STAB) |
758 | name = bfd_get_stab_name (asym->n_type); | |
15e1c58a | 759 | else |
92bc0e80 | 760 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
15e1c58a TG |
761 | { |
762 | case BFD_MACH_O_N_UNDF: | |
e0ce1005 TG |
763 | if (symbol->value == 0) |
764 | name = "UND"; | |
765 | else | |
766 | name = "COM"; | |
15e1c58a TG |
767 | break; |
768 | case BFD_MACH_O_N_ABS: | |
769 | name = "ABS"; | |
770 | break; | |
771 | case BFD_MACH_O_N_INDR: | |
772 | name = "INDR"; | |
773 | break; | |
774 | case BFD_MACH_O_N_PBUD: | |
775 | name = "PBUD"; | |
776 | break; | |
777 | case BFD_MACH_O_N_SECT: | |
778 | name = "SECT"; | |
779 | break; | |
780 | default: | |
781 | name = "???"; | |
782 | break; | |
783 | } | |
784 | if (name == NULL) | |
785 | name = ""; | |
92bc0e80 TG |
786 | fprintf (file, " %02x %-6s %02x %04x", |
787 | asym->n_type, name, asym->n_sect, asym->n_desc); | |
788 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 | |
789 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) | |
e0ce1005 | 790 | fprintf (file, " [%s]", symbol->section->name); |
15e1c58a | 791 | fprintf (file, " %s", symbol->name); |
3af9a47b NC |
792 | } |
793 | } | |
794 | ||
795 | static void | |
116c20d2 NC |
796 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
797 | bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED, | |
798 | enum bfd_architecture *type, | |
799 | unsigned long *subtype) | |
3af9a47b NC |
800 | { |
801 | *subtype = bfd_arch_unknown; | |
802 | ||
803 | switch (mtype) | |
804 | { | |
805 | case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break; | |
806 | case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break; | |
1e8a024a TG |
807 | case BFD_MACH_O_CPU_TYPE_I386: |
808 | *type = bfd_arch_i386; | |
809 | *subtype = bfd_mach_i386_i386; | |
810 | break; | |
811 | case BFD_MACH_O_CPU_TYPE_X86_64: | |
812 | *type = bfd_arch_i386; | |
813 | *subtype = bfd_mach_x86_64; | |
814 | break; | |
3af9a47b NC |
815 | case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break; |
816 | case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break; | |
817 | case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break; | |
818 | case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break; | |
819 | case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break; | |
1e8a024a TG |
820 | case BFD_MACH_O_CPU_TYPE_SPARC: |
821 | *type = bfd_arch_sparc; | |
822 | *subtype = bfd_mach_sparc; | |
823 | break; | |
3af9a47b NC |
824 | case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break; |
825 | case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break; | |
1e8a024a TG |
826 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
827 | *type = bfd_arch_powerpc; | |
c2f09c75 | 828 | *subtype = bfd_mach_ppc; |
1e8a024a TG |
829 | break; |
830 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: | |
831 | *type = bfd_arch_powerpc; | |
c2f09c75 | 832 | *subtype = bfd_mach_ppc64; |
1e8a024a | 833 | break; |
3af9a47b | 834 | default: |
1e8a024a TG |
835 | *type = bfd_arch_unknown; |
836 | break; | |
3af9a47b NC |
837 | } |
838 | } | |
a95a4550 | 839 | |
154a1ee5 | 840 | static bfd_boolean |
116c20d2 NC |
841 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
842 | { | |
46d1c23b | 843 | struct mach_o_header_external raw; |
1e8a024a TG |
844 | unsigned int size; |
845 | ||
c2f09c75 | 846 | size = mach_o_wide_p (header) ? |
154a1ee5 | 847 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
116c20d2 | 848 | |
46d1c23b TG |
849 | bfd_h_put_32 (abfd, header->magic, raw.magic); |
850 | bfd_h_put_32 (abfd, header->cputype, raw.cputype); | |
851 | bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype); | |
852 | bfd_h_put_32 (abfd, header->filetype, raw.filetype); | |
853 | bfd_h_put_32 (abfd, header->ncmds, raw.ncmds); | |
854 | bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds); | |
855 | bfd_h_put_32 (abfd, header->flags, raw.flags); | |
116c20d2 | 856 | |
c2f09c75 | 857 | if (mach_o_wide_p (header)) |
46d1c23b | 858 | bfd_h_put_32 (abfd, header->reserved, raw.reserved); |
1e8a024a | 859 | |
c2f09c75 | 860 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 861 | || bfd_bwrite (&raw, size, abfd) != size) |
154a1ee5 | 862 | return FALSE; |
116c20d2 | 863 | |
154a1ee5 | 864 | return TRUE; |
116c20d2 NC |
865 | } |
866 | ||
867 | static int | |
ab273af8 | 868 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 NC |
869 | { |
870 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
871 | unsigned int i; | |
46d1c23b | 872 | struct mach_o_thread_command_external raw; |
92bc0e80 | 873 | unsigned int offset; |
116c20d2 NC |
874 | |
875 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
876 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
877 | ||
878 | offset = 8; | |
116c20d2 NC |
879 | for (i = 0; i < cmd->nflavours; i++) |
880 | { | |
881 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
46d1c23b TG |
882 | BFD_ASSERT (cmd->flavours[i].offset == |
883 | (command->offset + offset + BFD_MACH_O_LC_SIZE)); | |
116c20d2 | 884 | |
46d1c23b TG |
885 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour); |
886 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count); | |
116c20d2 | 887 | |
c2f09c75 | 888 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 889 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) |
116c20d2 NC |
890 | return -1; |
891 | ||
46d1c23b | 892 | offset += cmd->flavours[i].size + sizeof (raw); |
116c20d2 NC |
893 | } |
894 | ||
895 | return 0; | |
896 | } | |
897 | ||
92bc0e80 TG |
898 | long |
899 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
900 | asection *asect) | |
901 | { | |
902 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
903 | } | |
904 | ||
b32e07d7 | 905 | static int |
46d1c23b TG |
906 | bfd_mach_o_canonicalize_one_reloc (bfd *abfd, |
907 | struct mach_o_reloc_info_external *raw, | |
b32e07d7 | 908 | arelent *res, asymbol **syms) |
92bc0e80 | 909 | { |
046b007d | 910 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
92bc0e80 | 911 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
b32e07d7 TG |
912 | bfd_mach_o_reloc_info reloc; |
913 | bfd_vma addr; | |
914 | bfd_vma symnum; | |
915 | asymbol **sym; | |
916 | ||
46d1c23b TG |
917 | addr = bfd_get_32 (abfd, raw->r_address); |
918 | symnum = bfd_get_32 (abfd, raw->r_symbolnum); | |
b32e07d7 TG |
919 | |
920 | if (addr & BFD_MACH_O_SR_SCATTERED) | |
921 | { | |
922 | unsigned int j; | |
923 | ||
924 | /* Scattered relocation. | |
925 | Extract section and offset from r_value. */ | |
926 | res->sym_ptr_ptr = NULL; | |
927 | res->addend = 0; | |
928 | for (j = 0; j < mdata->nsects; j++) | |
929 | { | |
930 | bfd_mach_o_section *sect = mdata->sections[j]; | |
931 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) | |
932 | { | |
933 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; | |
934 | res->addend = symnum - sect->addr; | |
935 | break; | |
936 | } | |
937 | } | |
938 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); | |
939 | reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr); | |
940 | reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr); | |
941 | reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL; | |
942 | reloc.r_scattered = 1; | |
943 | } | |
944 | else | |
945 | { | |
946 | unsigned int num = BFD_MACH_O_GET_R_SYMBOLNUM (symnum); | |
947 | res->addend = 0; | |
948 | res->address = addr; | |
949 | if (symnum & BFD_MACH_O_R_EXTERN) | |
06988dfc TG |
950 | { |
951 | sym = syms + num; | |
952 | reloc.r_extern = 1; | |
953 | } | |
b32e07d7 TG |
954 | else |
955 | { | |
956 | BFD_ASSERT (num != 0); | |
957 | BFD_ASSERT (num <= mdata->nsects); | |
958 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; | |
1523fa24 TG |
959 | /* For a symbol defined in section S, the addend (stored in the |
960 | binary) contains the address of the section. To comply with | |
961 | bfd conventio, substract the section address. | |
962 | Use the address from the header, so that the user can modify | |
963 | the vma of the section. */ | |
964 | res->addend = -mdata->sections[num - 1]->addr; | |
06988dfc | 965 | reloc.r_extern = 0; |
b32e07d7 TG |
966 | } |
967 | res->sym_ptr_ptr = sym; | |
968 | reloc.r_type = BFD_MACH_O_GET_R_TYPE (symnum); | |
969 | reloc.r_length = BFD_MACH_O_GET_R_LENGTH (symnum); | |
970 | reloc.r_pcrel = (symnum & BFD_MACH_O_R_PCREL) ? 1 : 0; | |
971 | reloc.r_scattered = 0; | |
972 | } | |
973 | ||
974 | if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc)) | |
975 | return -1; | |
976 | return 0; | |
977 | } | |
978 | ||
979 | static int | |
980 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, | |
981 | unsigned long count, | |
982 | arelent *res, asymbol **syms) | |
983 | { | |
92bc0e80 | 984 | unsigned long i; |
46d1c23b | 985 | struct mach_o_reloc_info_external *native_relocs; |
92bc0e80 TG |
986 | bfd_size_type native_size; |
987 | ||
92bc0e80 | 988 | /* Allocate and read relocs. */ |
b32e07d7 | 989 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
46d1c23b TG |
990 | native_relocs = |
991 | (struct mach_o_reloc_info_external *) bfd_malloc (native_size); | |
92bc0e80 TG |
992 | if (native_relocs == NULL) |
993 | return -1; | |
994 | ||
b32e07d7 | 995 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
92bc0e80 | 996 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
b32e07d7 TG |
997 | goto err; |
998 | ||
999 | for (i = 0; i < count; i++) | |
92bc0e80 | 1000 | { |
46d1c23b TG |
1001 | if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i], |
1002 | &res[i], syms) < 0) | |
b32e07d7 | 1003 | goto err; |
92bc0e80 | 1004 | } |
b32e07d7 TG |
1005 | free (native_relocs); |
1006 | return i; | |
1007 | err: | |
1008 | free (native_relocs); | |
1009 | return -1; | |
1010 | } | |
1011 | ||
1012 | long | |
1013 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
1014 | arelent **rels, asymbol **syms) | |
1015 | { | |
1016 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1017 | unsigned long i; | |
1018 | arelent *res; | |
1019 | ||
1020 | if (asect->reloc_count == 0) | |
1021 | return 0; | |
1022 | ||
1023 | /* No need to go further if we don't know how to read relocs. */ | |
1024 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) | |
1025 | return 0; | |
92bc0e80 TG |
1026 | |
1027 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); | |
1028 | if (res == NULL) | |
b32e07d7 TG |
1029 | return -1; |
1030 | ||
1031 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, | |
1032 | asect->reloc_count, res, syms) < 0) | |
92bc0e80 | 1033 | { |
b32e07d7 | 1034 | free (res); |
92bc0e80 TG |
1035 | return -1; |
1036 | } | |
1037 | ||
1038 | for (i = 0; i < asect->reloc_count; i++) | |
b32e07d7 TG |
1039 | rels[i] = &res[i]; |
1040 | rels[i] = NULL; | |
1041 | asect->relocation = res; | |
92bc0e80 | 1042 | |
b32e07d7 TG |
1043 | return i; |
1044 | } | |
92bc0e80 | 1045 | |
b32e07d7 TG |
1046 | long |
1047 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) | |
1048 | { | |
1049 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
92bc0e80 | 1050 | |
b32e07d7 TG |
1051 | if (mdata->dysymtab == NULL) |
1052 | return 1; | |
1053 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel) | |
1054 | * sizeof (arelent *); | |
1055 | } | |
92bc0e80 | 1056 | |
b32e07d7 TG |
1057 | long |
1058 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, | |
1059 | struct bfd_symbol **syms) | |
1060 | { | |
1061 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
1062 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; | |
1063 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1064 | unsigned long i; | |
1065 | arelent *res; | |
1066 | ||
1067 | if (dysymtab == NULL) | |
1068 | return 0; | |
1069 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) | |
1070 | return 0; | |
1071 | ||
1072 | /* No need to go further if we don't know how to read relocs. */ | |
1073 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) | |
1074 | return 0; | |
1075 | ||
1076 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)); | |
1077 | if (res == NULL) | |
1078 | return -1; | |
1079 | ||
1080 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, | |
1081 | dysymtab->nextrel, res, syms) < 0) | |
1082 | { | |
1083 | free (res); | |
1084 | return -1; | |
92bc0e80 | 1085 | } |
b32e07d7 TG |
1086 | |
1087 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, | |
1088 | dysymtab->nlocrel, | |
1089 | res + dysymtab->nextrel, syms) < 0) | |
1090 | { | |
1091 | free (res); | |
1092 | return -1; | |
1093 | } | |
1094 | ||
1095 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) | |
1096 | rels[i] = &res[i]; | |
1097 | rels[i] = NULL; | |
92bc0e80 TG |
1098 | return i; |
1099 | } | |
1100 | ||
1101 | static bfd_boolean | |
ab273af8 | 1102 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
92bc0e80 | 1103 | { |
046b007d | 1104 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
92bc0e80 TG |
1105 | unsigned int i; |
1106 | arelent **entries; | |
1107 | asection *sec; | |
1108 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
1109 | ||
1110 | sec = section->bfdsection; | |
1111 | if (sec->reloc_count == 0) | |
1112 | return TRUE; | |
1113 | ||
1114 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) | |
1115 | return TRUE; | |
1116 | ||
1117 | /* Allocate relocation room. */ | |
1118 | mdata->filelen = FILE_ALIGN(mdata->filelen, 2); | |
1119 | section->nreloc = sec->reloc_count; | |
1120 | sec->rel_filepos = mdata->filelen; | |
1121 | section->reloff = sec->rel_filepos; | |
1122 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; | |
1123 | ||
1124 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) | |
1125 | return FALSE; | |
1126 | ||
1127 | /* Convert and write. */ | |
1128 | entries = section->bfdsection->orelocation; | |
1129 | for (i = 0; i < section->nreloc; i++) | |
1130 | { | |
1131 | arelent *rel = entries[i]; | |
46d1c23b | 1132 | struct mach_o_reloc_info_external raw; |
92bc0e80 TG |
1133 | bfd_mach_o_reloc_info info, *pinfo = &info; |
1134 | ||
1135 | /* Convert relocation to an intermediate representation. */ | |
1136 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) | |
1137 | return FALSE; | |
1138 | ||
1139 | /* Lower the relocation info. */ | |
1140 | if (pinfo->r_scattered) | |
1141 | { | |
1142 | unsigned long v; | |
1143 | ||
1144 | v = BFD_MACH_O_SR_SCATTERED | |
1145 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) | |
1146 | | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length) | |
1147 | | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type) | |
1148 | | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address); | |
46d1c23b TG |
1149 | /* Note: scattered relocs have field in reverse order... */ |
1150 | bfd_put_32 (abfd, v, raw.r_address); | |
1151 | bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum); | |
92bc0e80 TG |
1152 | } |
1153 | else | |
1154 | { | |
1155 | unsigned long v; | |
1156 | ||
46d1c23b | 1157 | bfd_put_32 (abfd, pinfo->r_address, raw.r_address); |
92bc0e80 TG |
1158 | v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value) |
1159 | | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0) | |
1160 | | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length) | |
1161 | | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0) | |
1162 | | BFD_MACH_O_SET_R_TYPE (pinfo->r_type); | |
46d1c23b | 1163 | bfd_put_32 (abfd, v, raw.r_symbolnum); |
92bc0e80 TG |
1164 | } |
1165 | ||
46d1c23b | 1166 | if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd) |
92bc0e80 TG |
1167 | != BFD_MACH_O_RELENT_SIZE) |
1168 | return FALSE; | |
1169 | } | |
1170 | return TRUE; | |
1171 | } | |
1172 | ||
116c20d2 | 1173 | static int |
ab273af8 | 1174 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1175 | { |
46d1c23b TG |
1176 | struct mach_o_section_32_external raw; |
1177 | ||
1178 | memcpy (raw.sectname, section->sectname, 16); | |
72b5104c | 1179 | memcpy (raw.segname, section->segname, 16); |
46d1c23b TG |
1180 | bfd_h_put_32 (abfd, section->addr, raw.addr); |
1181 | bfd_h_put_32 (abfd, section->size, raw.size); | |
1182 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1183 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1184 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1185 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1186 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1187 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1188 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1189 | ||
1190 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd) | |
92bc0e80 | 1191 | != BFD_MACH_O_SECTION_SIZE) |
116c20d2 NC |
1192 | return -1; |
1193 | ||
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | static int | |
ab273af8 | 1198 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
116c20d2 | 1199 | { |
46d1c23b TG |
1200 | struct mach_o_section_64_external raw; |
1201 | ||
1202 | memcpy (raw.sectname, section->sectname, 16); | |
1203 | memcpy (raw.segname, section->segname, 16); | |
1204 | bfd_h_put_64 (abfd, section->addr, raw.addr); | |
1205 | bfd_h_put_64 (abfd, section->size, raw.size); | |
1206 | bfd_h_put_32 (abfd, section->offset, raw.offset); | |
1207 | bfd_h_put_32 (abfd, section->align, raw.align); | |
1208 | bfd_h_put_32 (abfd, section->reloff, raw.reloff); | |
1209 | bfd_h_put_32 (abfd, section->nreloc, raw.nreloc); | |
1210 | bfd_h_put_32 (abfd, section->flags, raw.flags); | |
1211 | bfd_h_put_32 (abfd, section->reserved1, raw.reserved1); | |
1212 | bfd_h_put_32 (abfd, section->reserved2, raw.reserved2); | |
1213 | bfd_h_put_32 (abfd, section->reserved3, raw.reserved3); | |
1214 | ||
1215 | if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) | |
92bc0e80 | 1216 | != BFD_MACH_O_SECTION_64_SIZE) |
116c20d2 NC |
1217 | return -1; |
1218 | ||
1e8a024a TG |
1219 | return 0; |
1220 | } | |
1221 | ||
1222 | static int | |
ab273af8 | 1223 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1224 | { |
46d1c23b | 1225 | struct mach_o_segment_command_32_external raw; |
1e8a024a | 1226 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1227 | bfd_mach_o_section *sec; |
1e8a024a | 1228 | |
c2f09c75 TG |
1229 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1230 | ||
f1bde64c TG |
1231 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1232 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
92bc0e80 | 1233 | return -1; |
c2f09c75 | 1234 | |
46d1c23b TG |
1235 | memcpy (raw.segname, seg->segname, 16); |
1236 | bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr); | |
1237 | bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize); | |
1238 | bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff); | |
1239 | bfd_h_put_32 (abfd, seg->filesize, raw.filesize); | |
1240 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1241 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1242 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1243 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
c2f09c75 | 1244 | |
46d1c23b TG |
1245 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
1246 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
c2f09c75 | 1247 | return -1; |
1e8a024a | 1248 | |
f1bde64c TG |
1249 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1250 | if (bfd_mach_o_write_section_32 (abfd, sec)) | |
92bc0e80 | 1251 | return -1; |
1e8a024a | 1252 | |
116c20d2 NC |
1253 | return 0; |
1254 | } | |
1255 | ||
1e8a024a | 1256 | static int |
ab273af8 | 1257 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 1258 | { |
46d1c23b | 1259 | struct mach_o_segment_command_64_external raw; |
c2f09c75 | 1260 | bfd_mach_o_segment_command *seg = &command->command.segment; |
f1bde64c | 1261 | bfd_mach_o_section *sec; |
c2f09c75 TG |
1262 | |
1263 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); | |
1264 | ||
f1bde64c TG |
1265 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1266 | if (!bfd_mach_o_write_relocs (abfd, sec)) | |
92bc0e80 | 1267 | return -1; |
c2f09c75 | 1268 | |
46d1c23b TG |
1269 | memcpy (raw.segname, seg->segname, 16); |
1270 | bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr); | |
1271 | bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize); | |
1272 | bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff); | |
1273 | bfd_h_put_64 (abfd, seg->filesize, raw.filesize); | |
1274 | bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot); | |
1275 | bfd_h_put_32 (abfd, seg->initprot, raw.initprot); | |
1276 | bfd_h_put_32 (abfd, seg->nsects, raw.nsects); | |
1277 | bfd_h_put_32 (abfd, seg->flags, raw.flags); | |
1278 | ||
1279 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1280 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
c2f09c75 TG |
1281 | return -1; |
1282 | ||
f1bde64c TG |
1283 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
1284 | if (bfd_mach_o_write_section_64 (abfd, sec)) | |
92bc0e80 | 1285 | return -1; |
c2f09c75 | 1286 | |
c2f09c75 | 1287 | return 0; |
1e8a024a TG |
1288 | } |
1289 | ||
c2f09c75 | 1290 | static bfd_boolean |
ab273af8 | 1291 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
116c20d2 | 1292 | { |
046b007d | 1293 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
116c20d2 | 1294 | bfd_mach_o_symtab_command *sym = &command->command.symtab; |
116c20d2 | 1295 | unsigned long i; |
c2f09c75 | 1296 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
046b007d | 1297 | unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; |
c2f09c75 TG |
1298 | struct bfd_strtab_hash *strtab; |
1299 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1300 | ||
1301 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
1302 | ||
1303 | /* Write the symbols first. */ | |
92bc0e80 TG |
1304 | mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2); |
1305 | sym->symoff = mdata->filelen; | |
c2f09c75 TG |
1306 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) |
1307 | return FALSE; | |
1308 | ||
1309 | sym->nsyms = bfd_get_symcount (abfd); | |
92bc0e80 | 1310 | mdata->filelen += sym->nsyms * symlen; |
c2f09c75 TG |
1311 | |
1312 | strtab = _bfd_stringtab_init (); | |
1313 | if (strtab == NULL) | |
1314 | return FALSE; | |
116c20d2 | 1315 | |
a4551119 TG |
1316 | if (sym->nsyms > 0) |
1317 | /* Although we don't strictly need to do this, for compatibility with | |
1318 | Darwin system tools, actually output an empty string for the index | |
1319 | 0 entry. */ | |
1320 | _bfd_stringtab_add (strtab, "", TRUE, FALSE); | |
1321 | ||
116c20d2 NC |
1322 | for (i = 0; i < sym->nsyms; i++) |
1323 | { | |
91d6fa6a | 1324 | bfd_size_type str_index; |
92bc0e80 | 1325 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
c2f09c75 | 1326 | |
92bc0e80 | 1327 | /* Compute name index. */ |
c2f09c75 | 1328 | /* An index of 0 always means the empty string. */ |
92bc0e80 | 1329 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
91d6fa6a | 1330 | str_index = 0; |
c2f09c75 TG |
1331 | else |
1332 | { | |
91d6fa6a NC |
1333 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); |
1334 | if (str_index == (bfd_size_type) -1) | |
c2f09c75 TG |
1335 | goto err; |
1336 | } | |
46d1c23b | 1337 | |
c2f09c75 | 1338 | if (wide) |
46d1c23b TG |
1339 | { |
1340 | struct mach_o_nlist_64_external raw; | |
1341 | ||
1342 | bfd_h_put_32 (abfd, str_index, raw.n_strx); | |
1343 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1344 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1345 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1346 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, | |
1347 | raw.n_value); | |
1348 | ||
1349 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1350 | goto err; | |
1351 | } | |
c2f09c75 | 1352 | else |
46d1c23b TG |
1353 | { |
1354 | struct mach_o_nlist_external raw; | |
116c20d2 | 1355 | |
46d1c23b TG |
1356 | bfd_h_put_32 (abfd, str_index, raw.n_strx); |
1357 | bfd_h_put_8 (abfd, s->n_type, raw.n_type); | |
1358 | bfd_h_put_8 (abfd, s->n_sect, raw.n_sect); | |
1359 | bfd_h_put_16 (abfd, s->n_desc, raw.n_desc); | |
1360 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, | |
1361 | raw.n_value); | |
1362 | ||
1363 | if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1364 | goto err; | |
1365 | } | |
116c20d2 | 1366 | } |
c2f09c75 | 1367 | sym->strsize = _bfd_stringtab_size (strtab); |
92bc0e80 TG |
1368 | sym->stroff = mdata->filelen; |
1369 | mdata->filelen += sym->strsize; | |
116c20d2 | 1370 | |
c2f09c75 TG |
1371 | if (_bfd_stringtab_emit (abfd, strtab) != TRUE) |
1372 | goto err; | |
1373 | _bfd_stringtab_free (strtab); | |
116c20d2 | 1374 | |
c2f09c75 | 1375 | /* The command. */ |
46d1c23b TG |
1376 | { |
1377 | struct mach_o_symtab_command_external raw; | |
116c20d2 | 1378 | |
46d1c23b TG |
1379 | bfd_h_put_32 (abfd, sym->symoff, raw.symoff); |
1380 | bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms); | |
1381 | bfd_h_put_32 (abfd, sym->stroff, raw.stroff); | |
1382 | bfd_h_put_32 (abfd, sym->strsize, raw.strsize); | |
1383 | ||
1384 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
1385 | || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
1386 | return FALSE; | |
1387 | } | |
116c20d2 | 1388 | |
c2f09c75 | 1389 | return TRUE; |
116c20d2 | 1390 | |
c2f09c75 TG |
1391 | err: |
1392 | _bfd_stringtab_free (strtab); | |
1393 | return FALSE; | |
116c20d2 NC |
1394 | } |
1395 | ||
92bc0e80 TG |
1396 | /* Process the symbols and generate Mach-O specific fields. |
1397 | Number them. */ | |
1398 | ||
1399 | static bfd_boolean | |
1400 | bfd_mach_o_mangle_symbols (bfd *abfd) | |
1401 | { | |
1402 | unsigned long i; | |
1403 | asymbol **symbols = bfd_get_outsymbols (abfd); | |
1404 | ||
1405 | for (i = 0; i < bfd_get_symcount (abfd); i++) | |
1406 | { | |
1407 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; | |
1408 | ||
1409 | if (s->n_type == BFD_MACH_O_N_UNDF && !(s->symbol.flags & BSF_DEBUGGING)) | |
1410 | { | |
1411 | /* As genuine Mach-O symbols type shouldn't be N_UNDF (undefined | |
1412 | symbols should be N_UNDEF | N_EXT), we suppose the back-end | |
1413 | values haven't been set. */ | |
1414 | if (s->symbol.section == bfd_abs_section_ptr) | |
1415 | s->n_type = BFD_MACH_O_N_ABS; | |
1416 | else if (s->symbol.section == bfd_und_section_ptr) | |
1417 | { | |
1418 | s->n_type = BFD_MACH_O_N_UNDF; | |
1419 | if (s->symbol.flags & BSF_WEAK) | |
1420 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; | |
1421 | } | |
1422 | else if (s->symbol.section == bfd_com_section_ptr) | |
1423 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; | |
1424 | else | |
1425 | s->n_type = BFD_MACH_O_N_SECT; | |
1426 | ||
1427 | if (s->symbol.flags & BSF_GLOBAL) | |
1428 | s->n_type |= BFD_MACH_O_N_EXT; | |
1429 | } | |
1430 | ||
1431 | /* Compute section index. */ | |
1432 | if (s->symbol.section != bfd_abs_section_ptr | |
1433 | && s->symbol.section != bfd_und_section_ptr | |
1434 | && s->symbol.section != bfd_com_section_ptr) | |
1435 | s->n_sect = s->symbol.section->target_index; | |
1436 | ||
1437 | /* Number symbols. */ | |
1438 | s->symbol.udata.i = i; | |
1439 | } | |
1440 | return TRUE; | |
1441 | } | |
1442 | ||
154a1ee5 | 1443 | bfd_boolean |
116c20d2 | 1444 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b NC |
1445 | { |
1446 | unsigned int i; | |
046b007d | 1447 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 1448 | |
92bc0e80 TG |
1449 | if (mdata->header.ncmds == 0) |
1450 | if (!bfd_mach_o_build_commands (abfd)) | |
1451 | return FALSE; | |
1452 | ||
3af9a47b | 1453 | /* Now write header information. */ |
c2f09c75 TG |
1454 | if (mdata->header.filetype == 0) |
1455 | { | |
1456 | if (abfd->flags & EXEC_P) | |
1457 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; | |
1458 | else if (abfd->flags & DYNAMIC) | |
1459 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; | |
1460 | else | |
1461 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; | |
1462 | } | |
154a1ee5 | 1463 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
b34976b6 | 1464 | return FALSE; |
3af9a47b | 1465 | |
92bc0e80 TG |
1466 | /* Assign a number to each symbols. */ |
1467 | if (!bfd_mach_o_mangle_symbols (abfd)) | |
1468 | return FALSE; | |
1469 | ||
3af9a47b NC |
1470 | for (i = 0; i < mdata->header.ncmds; i++) |
1471 | { | |
46d1c23b | 1472 | struct mach_o_load_command_external raw; |
3af9a47b NC |
1473 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
1474 | unsigned long typeflag; | |
1475 | ||
154a1ee5 | 1476 | typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
3af9a47b | 1477 | |
46d1c23b TG |
1478 | bfd_h_put_32 (abfd, typeflag, raw.cmd); |
1479 | bfd_h_put_32 (abfd, cur->len, raw.cmdsize); | |
3af9a47b | 1480 | |
c2f09c75 | 1481 | if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0 |
46d1c23b | 1482 | || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8) |
b34976b6 | 1483 | return FALSE; |
3af9a47b NC |
1484 | |
1485 | switch (cur->type) | |
1486 | { | |
1487 | case BFD_MACH_O_LC_SEGMENT: | |
ab273af8 | 1488 | if (bfd_mach_o_write_segment_32 (abfd, cur) != 0) |
1e8a024a TG |
1489 | return FALSE; |
1490 | break; | |
1491 | case BFD_MACH_O_LC_SEGMENT_64: | |
ab273af8 | 1492 | if (bfd_mach_o_write_segment_64 (abfd, cur) != 0) |
b34976b6 | 1493 | return FALSE; |
3af9a47b NC |
1494 | break; |
1495 | case BFD_MACH_O_LC_SYMTAB: | |
ab273af8 | 1496 | if (!bfd_mach_o_write_symtab (abfd, cur)) |
b34976b6 | 1497 | return FALSE; |
3af9a47b NC |
1498 | break; |
1499 | case BFD_MACH_O_LC_SYMSEG: | |
1500 | break; | |
1501 | case BFD_MACH_O_LC_THREAD: | |
1502 | case BFD_MACH_O_LC_UNIXTHREAD: | |
ab273af8 | 1503 | if (bfd_mach_o_write_thread (abfd, cur) != 0) |
b34976b6 | 1504 | return FALSE; |
3af9a47b NC |
1505 | break; |
1506 | case BFD_MACH_O_LC_LOADFVMLIB: | |
1507 | case BFD_MACH_O_LC_IDFVMLIB: | |
1508 | case BFD_MACH_O_LC_IDENT: | |
1509 | case BFD_MACH_O_LC_FVMFILE: | |
1510 | case BFD_MACH_O_LC_PREPAGE: | |
1511 | case BFD_MACH_O_LC_DYSYMTAB: | |
1512 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
1513 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
1514 | case BFD_MACH_O_LC_ID_DYLIB: | |
046b007d | 1515 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 1516 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
3af9a47b NC |
1517 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
1518 | case BFD_MACH_O_LC_ID_DYLINKER: | |
1519 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
1520 | case BFD_MACH_O_LC_ROUTINES: | |
1521 | case BFD_MACH_O_LC_SUB_FRAMEWORK: | |
1522 | break; | |
1523 | default: | |
4a97a0e5 AM |
1524 | (*_bfd_error_handler) (_("unable to write unknown load command 0x%lx"), |
1525 | (unsigned long) cur->type); | |
b34976b6 | 1526 | return FALSE; |
3af9a47b NC |
1527 | } |
1528 | } | |
1529 | ||
b34976b6 | 1530 | return TRUE; |
3af9a47b NC |
1531 | } |
1532 | ||
f1bde64c TG |
1533 | static void |
1534 | bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg, | |
1535 | asection *sec) | |
1536 | { | |
1537 | bfd_mach_o_section *s = (bfd_mach_o_section *)sec->used_by_bfd; | |
1538 | if (seg->sect_head == NULL) | |
1539 | seg->sect_head = s; | |
1540 | else | |
1541 | seg->sect_tail->next = s; | |
1542 | seg->sect_tail = s; | |
1543 | } | |
1544 | ||
1545 | /* Create section Mach-O flags from BFD flags. */ | |
1546 | ||
1547 | static void | |
1548 | bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
1549 | { | |
1550 | flagword bfd_flags; | |
1551 | bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec); | |
1552 | ||
1553 | /* Create default flags. */ | |
1554 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
1555 | if ((bfd_flags & SEC_CODE) == SEC_CODE) | |
1556 | s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS | |
1557 | | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS | |
1558 | | BFD_MACH_O_S_REGULAR; | |
1559 | else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC) | |
1560 | s->flags = BFD_MACH_O_S_ZEROFILL; | |
1561 | else if (bfd_flags & SEC_DEBUGGING) | |
1562 | s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG; | |
1563 | else | |
1564 | s->flags = BFD_MACH_O_S_REGULAR; | |
1565 | } | |
1566 | ||
154a1ee5 TG |
1567 | /* Build Mach-O load commands from the sections. */ |
1568 | ||
1569 | bfd_boolean | |
1570 | bfd_mach_o_build_commands (bfd *abfd) | |
1571 | { | |
046b007d | 1572 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 1573 | unsigned int wide = mach_o_wide_p (&mdata->header); |
154a1ee5 | 1574 | bfd_mach_o_segment_command *seg; |
154a1ee5 | 1575 | asection *sec; |
c2f09c75 TG |
1576 | bfd_mach_o_load_command *cmd; |
1577 | bfd_mach_o_load_command *symtab_cmd; | |
1578 | int target_index; | |
154a1ee5 TG |
1579 | |
1580 | /* Return now if commands are already built. */ | |
1581 | if (mdata->header.ncmds) | |
1582 | return FALSE; | |
1583 | ||
f1bde64c TG |
1584 | /* Very simple version: a command (segment) to contain all the sections and |
1585 | a command for the symbol table. */ | |
c2f09c75 TG |
1586 | mdata->header.ncmds = 2; |
1587 | mdata->commands = bfd_alloc (abfd, mdata->header.ncmds | |
154a1ee5 TG |
1588 | * sizeof (bfd_mach_o_load_command)); |
1589 | if (mdata->commands == NULL) | |
1590 | return FALSE; | |
c2f09c75 TG |
1591 | cmd = &mdata->commands[0]; |
1592 | seg = &cmd->command.segment; | |
1593 | ||
154a1ee5 | 1594 | seg->nsects = bfd_count_sections (abfd); |
154a1ee5 TG |
1595 | |
1596 | /* Set segment command. */ | |
1597 | if (wide) | |
1598 | { | |
c2f09c75 TG |
1599 | cmd->type = BFD_MACH_O_LC_SEGMENT_64; |
1600 | cmd->offset = BFD_MACH_O_HEADER_64_SIZE; | |
1601 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE | |
154a1ee5 TG |
1602 | + BFD_MACH_O_SECTION_64_SIZE * seg->nsects; |
1603 | } | |
1604 | else | |
1605 | { | |
c2f09c75 TG |
1606 | cmd->type = BFD_MACH_O_LC_SEGMENT; |
1607 | cmd->offset = BFD_MACH_O_HEADER_SIZE; | |
1608 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE | |
154a1ee5 TG |
1609 | + BFD_MACH_O_SECTION_SIZE * seg->nsects; |
1610 | } | |
c2f09c75 TG |
1611 | cmd->type_required = FALSE; |
1612 | mdata->header.sizeofcmds = cmd->len; | |
92bc0e80 | 1613 | mdata->filelen = cmd->offset + cmd->len; |
154a1ee5 | 1614 | |
c2f09c75 TG |
1615 | /* Set symtab command. */ |
1616 | symtab_cmd = &mdata->commands[1]; | |
1617 | ||
1618 | symtab_cmd->type = BFD_MACH_O_LC_SYMTAB; | |
1619 | symtab_cmd->offset = cmd->offset + cmd->len; | |
1620 | symtab_cmd->len = 6 * 4; | |
1621 | symtab_cmd->type_required = FALSE; | |
1622 | ||
1623 | mdata->header.sizeofcmds += symtab_cmd->len; | |
92bc0e80 | 1624 | mdata->filelen += symtab_cmd->len; |
c2f09c75 TG |
1625 | |
1626 | /* Fill segment command. */ | |
154a1ee5 TG |
1627 | memset (seg->segname, 0, sizeof (seg->segname)); |
1628 | seg->vmaddr = 0; | |
92bc0e80 | 1629 | seg->fileoff = mdata->filelen; |
154a1ee5 TG |
1630 | seg->filesize = 0; |
1631 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE | |
1632 | | BFD_MACH_O_PROT_EXECUTE; | |
1633 | seg->initprot = seg->maxprot; | |
1634 | seg->flags = 0; | |
7ba695a9 TG |
1635 | seg->sect_head = NULL; |
1636 | seg->sect_tail = NULL; | |
154a1ee5 | 1637 | |
a4551119 TG |
1638 | /* Create Mach-O sections. |
1639 | Section type, attribute and align should have been set when the | |
1640 | section was created - either read in or specified. */ | |
c2f09c75 | 1641 | target_index = 0; |
154a1ee5 TG |
1642 | for (sec = abfd->sections; sec; sec = sec->next) |
1643 | { | |
a4551119 | 1644 | unsigned bfd_align = bfd_get_section_alignment (abfd, sec); |
f1bde64c | 1645 | bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec); |
c2f09c75 | 1646 | |
f1bde64c TG |
1647 | bfd_mach_o_append_section_to_segment (seg, sec); |
1648 | ||
f1bde64c TG |
1649 | msect->addr = bfd_get_section_vma (abfd, sec); |
1650 | msect->size = bfd_get_section_size (sec); | |
a4551119 TG |
1651 | /* Use the largest alignment set, in case it was bumped after the |
1652 | section was created. */ | |
1653 | msect->align = msect->align > bfd_align ? msect->align : bfd_align; | |
f1bde64c TG |
1654 | |
1655 | if (msect->size != 0) | |
1656 | { | |
1657 | mdata->filelen = FILE_ALIGN (mdata->filelen, msect->align); | |
1658 | msect->offset = mdata->filelen; | |
92bc0e80 TG |
1659 | } |
1660 | else | |
f1bde64c TG |
1661 | msect->offset = 0; |
1662 | ||
1663 | sec->filepos = msect->offset; | |
c2f09c75 | 1664 | sec->target_index = ++target_index; |
154a1ee5 | 1665 | |
f1bde64c | 1666 | mdata->filelen += msect->size; |
154a1ee5 | 1667 | } |
92bc0e80 | 1668 | seg->filesize = mdata->filelen - seg->fileoff; |
154a1ee5 TG |
1669 | seg->vmsize = seg->filesize; |
1670 | ||
1671 | return TRUE; | |
1672 | } | |
1673 | ||
1674 | /* Set the contents of a section. */ | |
1675 | ||
1676 | bfd_boolean | |
1677 | bfd_mach_o_set_section_contents (bfd *abfd, | |
1678 | asection *section, | |
1679 | const void * location, | |
1680 | file_ptr offset, | |
1681 | bfd_size_type count) | |
1682 | { | |
1683 | file_ptr pos; | |
1684 | ||
1685 | /* This must be done first, because bfd_set_section_contents is | |
1686 | going to set output_has_begun to TRUE. */ | |
1687 | if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd)) | |
1688 | return FALSE; | |
1689 | ||
1690 | if (count == 0) | |
1691 | return TRUE; | |
1692 | ||
1693 | pos = section->filepos + offset; | |
1694 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
1695 | || bfd_bwrite (location, count, abfd) != count) | |
1696 | return FALSE; | |
1697 | ||
1698 | return TRUE; | |
1699 | } | |
1700 | ||
1701 | int | |
116c20d2 | 1702 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
a6b96beb | 1703 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3af9a47b NC |
1704 | { |
1705 | return 0; | |
1706 | } | |
1707 | ||
1708 | /* Make an empty symbol. This is required only because | |
1709 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
1710 | ||
154a1ee5 | 1711 | asymbol * |
116c20d2 | 1712 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b | 1713 | { |
d3ce72d0 NC |
1714 | asymbol *new_symbol; |
1715 | ||
1716 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); | |
1717 | if (new_symbol == NULL) | |
1718 | return new_symbol; | |
1719 | new_symbol->the_bfd = abfd; | |
1720 | new_symbol->udata.i = 0; | |
1721 | return new_symbol; | |
3af9a47b NC |
1722 | } |
1723 | ||
154a1ee5 | 1724 | static bfd_boolean |
116c20d2 | 1725 | bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header) |
3af9a47b | 1726 | { |
46d1c23b | 1727 | struct mach_o_header_external raw; |
1e8a024a | 1728 | unsigned int size; |
edeb6e24 | 1729 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b | 1730 | |
1e8a024a | 1731 | /* Just read the magic number. */ |
c2f09c75 | 1732 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1733 | || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4) |
154a1ee5 | 1734 | return FALSE; |
3af9a47b | 1735 | |
46d1c23b | 1736 | if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b NC |
1737 | { |
1738 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 1739 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a | 1740 | header->version = 1; |
3af9a47b NC |
1741 | get32 = bfd_getb32; |
1742 | } | |
46d1c23b | 1743 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC) |
3af9a47b | 1744 | { |
a95a4550 | 1745 | header->byteorder = BFD_ENDIAN_LITTLE; |
154a1ee5 | 1746 | header->magic = BFD_MACH_O_MH_MAGIC; |
1e8a024a TG |
1747 | header->version = 1; |
1748 | get32 = bfd_getl32; | |
1749 | } | |
46d1c23b | 1750 | else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
1751 | { |
1752 | header->byteorder = BFD_ENDIAN_BIG; | |
154a1ee5 | 1753 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a TG |
1754 | header->version = 2; |
1755 | get32 = bfd_getb32; | |
1756 | } | |
46d1c23b | 1757 | else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64) |
1e8a024a TG |
1758 | { |
1759 | header->byteorder = BFD_ENDIAN_LITTLE; | |
154a1ee5 | 1760 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
1e8a024a | 1761 | header->version = 2; |
3af9a47b NC |
1762 | get32 = bfd_getl32; |
1763 | } | |
1764 | else | |
1765 | { | |
1766 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
154a1ee5 | 1767 | return FALSE; |
3af9a47b | 1768 | } |
a95a4550 | 1769 | |
1e8a024a | 1770 | /* Once the size of the header is known, read the full header. */ |
c2f09c75 | 1771 | size = mach_o_wide_p (header) ? |
154a1ee5 | 1772 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
1e8a024a | 1773 | |
c2f09c75 | 1774 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 1775 | || bfd_bread (&raw, size, abfd) != size) |
154a1ee5 | 1776 | return FALSE; |
1e8a024a | 1777 | |
46d1c23b TG |
1778 | header->cputype = (*get32) (raw.cputype); |
1779 | header->cpusubtype = (*get32) (raw.cpusubtype); | |
1780 | header->filetype = (*get32) (raw.filetype); | |
1781 | header->ncmds = (*get32) (raw.ncmds); | |
1782 | header->sizeofcmds = (*get32) (raw.sizeofcmds); | |
1783 | header->flags = (*get32) (raw.flags); | |
3af9a47b | 1784 | |
c2f09c75 | 1785 | if (mach_o_wide_p (header)) |
46d1c23b | 1786 | header->reserved = (*get32) (raw.reserved); |
1e8a024a | 1787 | |
154a1ee5 | 1788 | return TRUE; |
3af9a47b NC |
1789 | } |
1790 | ||
f1bde64c TG |
1791 | bfd_boolean |
1792 | bfd_mach_o_new_section_hook (bfd *abfd, asection *sec) | |
1793 | { | |
1794 | bfd_mach_o_section *s; | |
a4551119 | 1795 | unsigned bfdalign = bfd_get_section_alignment (abfd, sec); |
f1bde64c TG |
1796 | |
1797 | s = bfd_mach_o_get_mach_o_section (sec); | |
1798 | if (s == NULL) | |
1799 | { | |
1800 | flagword bfd_flags; | |
a4551119 | 1801 | static const mach_o_section_name_xlat * xlat; |
f1bde64c TG |
1802 | |
1803 | s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s)); | |
1804 | if (s == NULL) | |
1805 | return FALSE; | |
1806 | sec->used_by_bfd = s; | |
1807 | s->bfdsection = sec; | |
1808 | ||
a4551119 TG |
1809 | /* Create the Darwin seg/sect name pair from the bfd name. |
1810 | If this is a canonical name for which a specific paiting exists | |
1811 | there will also be defined flags, type, attribute and alignment | |
1812 | values. */ | |
1813 | xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s); | |
1814 | if (xlat != NULL) | |
1815 | { | |
1816 | s->flags = xlat->macho_sectype | xlat->macho_secattr; | |
1817 | s->align = xlat->sectalign > bfdalign ? xlat->sectalign | |
1818 | : bfdalign; | |
1819 | bfd_set_section_alignment (abfd, sec, s->align); | |
1820 | bfd_flags = bfd_get_section_flags (abfd, sec); | |
1821 | if (bfd_flags == SEC_NO_FLAGS) | |
1822 | bfd_set_section_flags (abfd, sec, xlat->bfd_flags); | |
1823 | } | |
f1bde64c | 1824 | else |
a4551119 TG |
1825 | /* Create default flags. */ |
1826 | bfd_mach_o_set_section_flags_from_bfd (abfd, sec); | |
f1bde64c TG |
1827 | } |
1828 | ||
1829 | return _bfd_generic_new_section_hook (abfd, sec); | |
1830 | } | |
1831 | ||
1832 | static void | |
1833 | bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec, | |
1834 | unsigned long prot) | |
3af9a47b | 1835 | { |
117ed4f8 | 1836 | flagword flags; |
f1bde64c | 1837 | bfd_mach_o_section *section; |
3af9a47b | 1838 | |
f1bde64c TG |
1839 | flags = bfd_get_section_flags (abfd, sec); |
1840 | section = bfd_mach_o_get_mach_o_section (sec); | |
3af9a47b | 1841 | |
a4551119 TG |
1842 | /* TODO: see if we should use the xlat system for doing this by |
1843 | preference and fall back to this for unknown sections. */ | |
1844 | ||
8462aec7 | 1845 | if (flags == SEC_NO_FLAGS) |
ef17cb22 | 1846 | { |
8462aec7 TG |
1847 | /* Try to guess flags. */ |
1848 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) | |
1849 | flags = SEC_DEBUGGING; | |
1850 | else | |
1851 | { | |
1852 | flags = SEC_ALLOC; | |
1853 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) | |
1854 | != BFD_MACH_O_S_ZEROFILL) | |
1855 | { | |
1856 | flags |= SEC_LOAD; | |
1857 | if (prot & BFD_MACH_O_PROT_EXECUTE) | |
1858 | flags |= SEC_CODE; | |
1859 | if (prot & BFD_MACH_O_PROT_WRITE) | |
1860 | flags |= SEC_DATA; | |
1861 | else if (prot & BFD_MACH_O_PROT_READ) | |
1862 | flags |= SEC_READONLY; | |
1863 | } | |
1864 | } | |
ef17cb22 | 1865 | } |
15e1c58a TG |
1866 | else |
1867 | { | |
8462aec7 TG |
1868 | if ((flags & SEC_DEBUGGING) == 0) |
1869 | flags |= SEC_ALLOC; | |
15e1c58a | 1870 | } |
8462aec7 TG |
1871 | |
1872 | if (section->offset != 0) | |
1873 | flags |= SEC_HAS_CONTENTS; | |
92bc0e80 TG |
1874 | if (section->nreloc != 0) |
1875 | flags |= SEC_RELOC; | |
1876 | ||
f1bde64c TG |
1877 | bfd_set_section_flags (abfd, sec, flags); |
1878 | ||
1879 | sec->vma = section->addr; | |
1880 | sec->lma = section->addr; | |
1881 | sec->size = section->size; | |
1882 | sec->filepos = section->offset; | |
1883 | sec->alignment_power = section->align; | |
1884 | sec->segment_mark = 0; | |
1885 | sec->reloc_count = section->nreloc; | |
1886 | sec->rel_filepos = section->reloff; | |
1887 | } | |
1888 | ||
1889 | static asection * | |
1890 | bfd_mach_o_make_bfd_section (bfd *abfd, | |
1891 | const unsigned char *segname, | |
1892 | const unsigned char *sectname) | |
1893 | { | |
1894 | const char *sname; | |
1895 | flagword flags; | |
a95a4550 | 1896 | |
f1bde64c TG |
1897 | bfd_mach_o_convert_section_name_to_bfd |
1898 | (abfd, (const char *)segname, (const char *)sectname, &sname, &flags); | |
1899 | if (sname == NULL) | |
1900 | return NULL; | |
3af9a47b | 1901 | |
f1bde64c | 1902 | return bfd_make_section_anyway_with_flags (abfd, sname, flags); |
3af9a47b NC |
1903 | } |
1904 | ||
f1bde64c | 1905 | static asection * |
ab273af8 | 1906 | bfd_mach_o_read_section_32 (bfd *abfd, |
ab273af8 TG |
1907 | unsigned int offset, |
1908 | unsigned long prot) | |
3af9a47b | 1909 | { |
46d1c23b | 1910 | struct mach_o_section_32_external raw; |
f1bde64c TG |
1911 | asection *sec; |
1912 | bfd_mach_o_section *section; | |
3af9a47b | 1913 | |
c2f09c75 | 1914 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
46d1c23b | 1915 | || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd) |
c2f09c75 | 1916 | != BFD_MACH_O_SECTION_SIZE)) |
f1bde64c | 1917 | return NULL; |
a95a4550 | 1918 | |
5a5cbf72 | 1919 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
1920 | if (sec == NULL) |
1921 | return NULL; | |
1922 | ||
1923 | section = bfd_mach_o_get_mach_o_section (sec); | |
1924 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
1925 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
1926 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 1927 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
1928 | section->addr = bfd_h_get_32 (abfd, raw.addr); |
1929 | section->size = bfd_h_get_32 (abfd, raw.size); | |
1930 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
1931 | section->align = bfd_h_get_32 (abfd, raw.align); | |
1932 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); | |
1933 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
1934 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
1935 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
1936 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1e8a024a | 1937 | section->reserved3 = 0; |
1e8a024a | 1938 | |
f1bde64c | 1939 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
1e8a024a | 1940 | |
f1bde64c | 1941 | return sec; |
1e8a024a TG |
1942 | } |
1943 | ||
f1bde64c | 1944 | static asection * |
ab273af8 | 1945 | bfd_mach_o_read_section_64 (bfd *abfd, |
ab273af8 TG |
1946 | unsigned int offset, |
1947 | unsigned long prot) | |
1e8a024a | 1948 | { |
46d1c23b | 1949 | struct mach_o_section_64_external raw; |
f1bde64c TG |
1950 | asection *sec; |
1951 | bfd_mach_o_section *section; | |
1e8a024a | 1952 | |
c2f09c75 | 1953 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
46d1c23b | 1954 | || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd) |
c2f09c75 | 1955 | != BFD_MACH_O_SECTION_64_SIZE)) |
f1bde64c TG |
1956 | return NULL; |
1957 | ||
5a5cbf72 | 1958 | sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname); |
f1bde64c TG |
1959 | if (sec == NULL) |
1960 | return NULL; | |
1e8a024a | 1961 | |
f1bde64c TG |
1962 | section = bfd_mach_o_get_mach_o_section (sec); |
1963 | memcpy (section->segname, raw.segname, sizeof (raw.segname)); | |
1964 | section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0; | |
1965 | memcpy (section->sectname, raw.sectname, sizeof (raw.sectname)); | |
69499dca | 1966 | section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0; |
46d1c23b TG |
1967 | section->addr = bfd_h_get_64 (abfd, raw.addr); |
1968 | section->size = bfd_h_get_64 (abfd, raw.size); | |
1969 | section->offset = bfd_h_get_32 (abfd, raw.offset); | |
1970 | section->align = bfd_h_get_32 (abfd, raw.align); | |
1971 | section->reloff = bfd_h_get_32 (abfd, raw.reloff); | |
1972 | section->nreloc = bfd_h_get_32 (abfd, raw.nreloc); | |
1973 | section->flags = bfd_h_get_32 (abfd, raw.flags); | |
1974 | section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1); | |
1975 | section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2); | |
1976 | section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3); | |
3af9a47b | 1977 | |
f1bde64c | 1978 | bfd_mach_o_init_section_from_mach_o (abfd, sec, prot); |
3af9a47b | 1979 | |
f1bde64c | 1980 | return sec; |
3af9a47b NC |
1981 | } |
1982 | ||
f1bde64c | 1983 | static asection * |
ab273af8 | 1984 | bfd_mach_o_read_section (bfd *abfd, |
ab273af8 TG |
1985 | unsigned int offset, |
1986 | unsigned long prot, | |
1987 | unsigned int wide) | |
1e8a024a TG |
1988 | { |
1989 | if (wide) | |
f1bde64c | 1990 | return bfd_mach_o_read_section_64 (abfd, offset, prot); |
1e8a024a | 1991 | else |
f1bde64c | 1992 | return bfd_mach_o_read_section_32 (abfd, offset, prot); |
1e8a024a TG |
1993 | } |
1994 | ||
afbb9e17 | 1995 | static bfd_boolean |
ab273af8 TG |
1996 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
1997 | bfd_mach_o_symtab_command *sym, | |
1998 | bfd_mach_o_asymbol *s, | |
1999 | unsigned long i) | |
3af9a47b | 2000 | { |
046b007d | 2001 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
c2f09c75 | 2002 | unsigned int wide = mach_o_wide_p (&mdata->header); |
046b007d TG |
2003 | unsigned int symwidth = |
2004 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; | |
92bc0e80 | 2005 | unsigned int symoff = sym->symoff + (i * symwidth); |
46d1c23b | 2006 | struct mach_o_nlist_64_external raw; |
3af9a47b NC |
2007 | unsigned char type = -1; |
2008 | unsigned char section = -1; | |
2009 | short desc = -1; | |
1e8a024a | 2010 | symvalue value = -1; |
3af9a47b NC |
2011 | unsigned long stroff = -1; |
2012 | unsigned int symtype = -1; | |
2013 | ||
2014 | BFD_ASSERT (sym->strtab != NULL); | |
2015 | ||
c2f09c75 | 2016 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
46d1c23b | 2017 | || bfd_bread (&raw, symwidth, abfd) != symwidth) |
3af9a47b | 2018 | { |
46d1c23b TG |
2019 | (*_bfd_error_handler) |
2020 | (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"), | |
2021 | symwidth, (unsigned long) symoff); | |
afbb9e17 | 2022 | return FALSE; |
3af9a47b NC |
2023 | } |
2024 | ||
46d1c23b TG |
2025 | stroff = bfd_h_get_32 (abfd, raw.n_strx); |
2026 | type = bfd_h_get_8 (abfd, raw.n_type); | |
c2f09c75 | 2027 | symtype = type & BFD_MACH_O_N_TYPE; |
46d1c23b TG |
2028 | section = bfd_h_get_8 (abfd, raw.n_sect); |
2029 | desc = bfd_h_get_16 (abfd, raw.n_desc); | |
1e8a024a | 2030 | if (wide) |
46d1c23b | 2031 | value = bfd_h_get_64 (abfd, raw.n_value); |
1e8a024a | 2032 | else |
46d1c23b | 2033 | value = bfd_h_get_32 (abfd, raw.n_value); |
3af9a47b NC |
2034 | |
2035 | if (stroff >= sym->strsize) | |
2036 | { | |
46d1c23b TG |
2037 | (*_bfd_error_handler) |
2038 | (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"), | |
2039 | (unsigned long) stroff, | |
2040 | (unsigned long) sym->strsize); | |
afbb9e17 | 2041 | return FALSE; |
3af9a47b NC |
2042 | } |
2043 | ||
92bc0e80 TG |
2044 | s->symbol.the_bfd = abfd; |
2045 | s->symbol.name = sym->strtab + stroff; | |
2046 | s->symbol.value = value; | |
2047 | s->symbol.flags = 0x0; | |
2048 | s->symbol.udata.i = 0; | |
2049 | s->n_type = type; | |
2050 | s->n_sect = section; | |
2051 | s->n_desc = desc; | |
3af9a47b NC |
2052 | |
2053 | if (type & BFD_MACH_O_N_STAB) | |
2054 | { | |
92bc0e80 TG |
2055 | s->symbol.flags |= BSF_DEBUGGING; |
2056 | s->symbol.section = bfd_und_section_ptr; | |
15e1c58a TG |
2057 | switch (type) |
2058 | { | |
2059 | case N_FUN: | |
2060 | case N_STSYM: | |
2061 | case N_LCSYM: | |
2062 | case N_BNSYM: | |
2063 | case N_SLINE: | |
2064 | case N_ENSYM: | |
2065 | case N_ECOMM: | |
2066 | case N_ECOML: | |
2067 | case N_GSYM: | |
2068 | if ((section > 0) && (section <= mdata->nsects)) | |
2069 | { | |
92bc0e80 TG |
2070 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
2071 | s->symbol.value = | |
2072 | s->symbol.value - mdata->sections[section - 1]->addr; | |
15e1c58a TG |
2073 | } |
2074 | break; | |
2075 | } | |
3af9a47b NC |
2076 | } |
2077 | else | |
2078 | { | |
2079 | if (type & BFD_MACH_O_N_PEXT) | |
92bc0e80 | 2080 | s->symbol.flags |= BSF_GLOBAL; |
c2f09c75 | 2081 | |
3af9a47b | 2082 | if (type & BFD_MACH_O_N_EXT) |
92bc0e80 | 2083 | s->symbol.flags |= BSF_GLOBAL; |
15e1c58a TG |
2084 | |
2085 | if (!(type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))) | |
92bc0e80 | 2086 | s->symbol.flags |= BSF_LOCAL; |
3af9a47b NC |
2087 | |
2088 | switch (symtype) | |
2089 | { | |
2090 | case BFD_MACH_O_N_UNDF: | |
c2f09c75 | 2091 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
92bc0e80 | 2092 | && s->symbol.value != 0) |
c2f09c75 TG |
2093 | { |
2094 | /* A common symbol. */ | |
92bc0e80 TG |
2095 | s->symbol.section = bfd_com_section_ptr; |
2096 | s->symbol.flags = BSF_NO_FLAGS; | |
c2f09c75 TG |
2097 | } |
2098 | else | |
92bc0e80 TG |
2099 | { |
2100 | s->symbol.section = bfd_und_section_ptr; | |
2101 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) | |
2102 | s->symbol.flags |= BSF_WEAK; | |
2103 | } | |
3af9a47b NC |
2104 | break; |
2105 | case BFD_MACH_O_N_PBUD: | |
92bc0e80 | 2106 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
2107 | break; |
2108 | case BFD_MACH_O_N_ABS: | |
92bc0e80 | 2109 | s->symbol.section = bfd_abs_section_ptr; |
3af9a47b NC |
2110 | break; |
2111 | case BFD_MACH_O_N_SECT: | |
2112 | if ((section > 0) && (section <= mdata->nsects)) | |
2113 | { | |
92bc0e80 TG |
2114 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
2115 | s->symbol.value = | |
2116 | s->symbol.value - mdata->sections[section - 1]->addr; | |
3af9a47b NC |
2117 | } |
2118 | else | |
2119 | { | |
2120 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
2121 | if (section != 0) | |
2122 | { | |
4a97a0e5 AM |
2123 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
2124 | "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"), | |
2125 | s->symbol.name, section, mdata->nsects); | |
3af9a47b | 2126 | } |
92bc0e80 | 2127 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
2128 | } |
2129 | break; | |
2130 | case BFD_MACH_O_N_INDR: | |
0596a831 TG |
2131 | /* FIXME: we don't follow the BFD convention as this indirect symbol |
2132 | won't be followed by the referenced one. This looks harmless | |
2133 | unless we start using the linker. */ | |
2134 | s->symbol.flags |= BSF_INDIRECT; | |
2135 | s->symbol.section = bfd_ind_section_ptr; | |
2136 | s->symbol.value = 0; | |
3af9a47b NC |
2137 | break; |
2138 | default: | |
4a97a0e5 AM |
2139 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
2140 | "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"), | |
2141 | s->symbol.name, symtype); | |
92bc0e80 | 2142 | s->symbol.section = bfd_und_section_ptr; |
3af9a47b NC |
2143 | break; |
2144 | } | |
2145 | } | |
2146 | ||
afbb9e17 | 2147 | return TRUE; |
3af9a47b NC |
2148 | } |
2149 | ||
c5012cd8 | 2150 | bfd_boolean |
ab273af8 | 2151 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
3af9a47b | 2152 | { |
046b007d TG |
2153 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2154 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
2155 | ||
2156 | /* Fail if there is no symtab. */ | |
2157 | if (sym == NULL) | |
afbb9e17 | 2158 | return FALSE; |
046b007d TG |
2159 | |
2160 | /* Success if already loaded. */ | |
2161 | if (sym->strtab) | |
afbb9e17 | 2162 | return TRUE; |
3af9a47b NC |
2163 | |
2164 | if (abfd->flags & BFD_IN_MEMORY) | |
2165 | { | |
2166 | struct bfd_in_memory *b; | |
2167 | ||
2168 | b = (struct bfd_in_memory *) abfd->iostream; | |
2169 | ||
2170 | if ((sym->stroff + sym->strsize) > b->size) | |
2171 | { | |
2172 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 2173 | return FALSE; |
3af9a47b | 2174 | } |
f075ee0c | 2175 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b | 2176 | } |
046b007d | 2177 | else |
3af9a47b | 2178 | { |
046b007d TG |
2179 | sym->strtab = bfd_alloc (abfd, sym->strsize); |
2180 | if (sym->strtab == NULL) | |
afbb9e17 | 2181 | return FALSE; |
046b007d TG |
2182 | |
2183 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 | |
afbb9e17 | 2184 | || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize) |
046b007d TG |
2185 | { |
2186 | bfd_set_error (bfd_error_file_truncated); | |
afbb9e17 | 2187 | return FALSE; |
046b007d | 2188 | } |
3af9a47b NC |
2189 | } |
2190 | ||
afbb9e17 | 2191 | return TRUE; |
3af9a47b NC |
2192 | } |
2193 | ||
c5012cd8 | 2194 | bfd_boolean |
ab273af8 | 2195 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
3af9a47b | 2196 | { |
046b007d TG |
2197 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
2198 | bfd_mach_o_symtab_command *sym = mdata->symtab; | |
3af9a47b | 2199 | unsigned long i; |
3af9a47b | 2200 | |
092d27ff TG |
2201 | if (sym == NULL || sym->symbols) |
2202 | { | |
2203 | /* Return now if there are no symbols or if already loaded. */ | |
afbb9e17 | 2204 | return TRUE; |
092d27ff | 2205 | } |
046b007d | 2206 | |
92bc0e80 | 2207 | sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol)); |
3af9a47b NC |
2208 | |
2209 | if (sym->symbols == NULL) | |
2210 | { | |
4a97a0e5 | 2211 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols")); |
afbb9e17 | 2212 | return FALSE; |
3af9a47b | 2213 | } |
a95a4550 | 2214 | |
afbb9e17 TG |
2215 | if (!bfd_mach_o_read_symtab_strtab (abfd)) |
2216 | return FALSE; | |
3af9a47b NC |
2217 | |
2218 | for (i = 0; i < sym->nsyms; i++) | |
2219 | { | |
afbb9e17 TG |
2220 | if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i)) |
2221 | return FALSE; | |
3af9a47b | 2222 | } |
a95a4550 | 2223 | |
afbb9e17 | 2224 | return TRUE; |
3af9a47b NC |
2225 | } |
2226 | ||
2227 | static const char * | |
116c20d2 | 2228 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
2229 | { |
2230 | switch ((int) flavour) | |
2231 | { | |
15e1c58a TG |
2232 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
2233 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; | |
2234 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; | |
2235 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; | |
2236 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; | |
2237 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; | |
2238 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; | |
2239 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; | |
2240 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; | |
2241 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; | |
2242 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; | |
2243 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; | |
b32e07d7 | 2244 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
3af9a47b NC |
2245 | default: return "UNKNOWN"; |
2246 | } | |
2247 | } | |
2248 | ||
2249 | static const char * | |
116c20d2 | 2250 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
2251 | { |
2252 | switch ((int) flavour) | |
2253 | { | |
b32e07d7 TG |
2254 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
2255 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
2256 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
2257 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
2258 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; | |
2259 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; | |
3af9a47b NC |
2260 | default: return "UNKNOWN"; |
2261 | } | |
2262 | } | |
2263 | ||
2264 | static int | |
ab273af8 | 2265 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
2266 | { |
2267 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
46d1c23b | 2268 | struct mach_o_str_command_external raw; |
3af9a47b | 2269 | unsigned int nameoff; |
3af9a47b NC |
2270 | |
2271 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER) | |
2272 | || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)); | |
2273 | ||
46d1c23b TG |
2274 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2275 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b NC |
2276 | return -1; |
2277 | ||
46d1c23b | 2278 | nameoff = bfd_h_get_32 (abfd, raw.str); |
3af9a47b NC |
2279 | |
2280 | cmd->name_offset = command->offset + nameoff; | |
2281 | cmd->name_len = command->len - nameoff; | |
b32e07d7 TG |
2282 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
2283 | if (cmd->name_str == NULL) | |
3af9a47b | 2284 | return -1; |
b32e07d7 TG |
2285 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
2286 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) | |
3af9a47b | 2287 | return -1; |
3af9a47b NC |
2288 | return 0; |
2289 | } | |
2290 | ||
2291 | static int | |
ab273af8 | 2292 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
2293 | { |
2294 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
46d1c23b | 2295 | struct mach_o_dylib_command_external raw; |
3af9a47b | 2296 | unsigned int nameoff; |
3af9a47b | 2297 | |
046b007d TG |
2298 | switch (command->type) |
2299 | { | |
2300 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
046b007d | 2301 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
046b007d | 2302 | case BFD_MACH_O_LC_ID_DYLIB: |
046b007d | 2303 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 2304 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
046b007d TG |
2305 | break; |
2306 | default: | |
b32e07d7 TG |
2307 | BFD_FAIL (); |
2308 | return -1; | |
046b007d | 2309 | } |
3af9a47b | 2310 | |
46d1c23b TG |
2311 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2312 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b NC |
2313 | return -1; |
2314 | ||
46d1c23b TG |
2315 | nameoff = bfd_h_get_32 (abfd, raw.name); |
2316 | cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp); | |
2317 | cmd->current_version = bfd_h_get_32 (abfd, raw.current_version); | |
2318 | cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version); | |
3af9a47b NC |
2319 | |
2320 | cmd->name_offset = command->offset + nameoff; | |
2321 | cmd->name_len = command->len - nameoff; | |
b32e07d7 TG |
2322 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
2323 | if (cmd->name_str == NULL) | |
3af9a47b | 2324 | return -1; |
b32e07d7 TG |
2325 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
2326 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) | |
3af9a47b | 2327 | return -1; |
3af9a47b NC |
2328 | return 0; |
2329 | } | |
2330 | ||
2331 | static int | |
ab273af8 TG |
2332 | bfd_mach_o_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED, |
2333 | bfd_mach_o_load_command *command ATTRIBUTE_UNUSED) | |
3af9a47b NC |
2334 | { |
2335 | /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */ | |
2336 | ||
2337 | BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB); | |
2338 | return 0; | |
2339 | } | |
2340 | ||
2341 | static int | |
ab273af8 | 2342 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 2343 | { |
b32e07d7 | 2344 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 2345 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
92bc0e80 | 2346 | unsigned int offset; |
3af9a47b NC |
2347 | unsigned int nflavours; |
2348 | unsigned int i; | |
2349 | ||
2350 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
2351 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
2352 | ||
b32e07d7 | 2353 | /* Count the number of threads. */ |
3af9a47b NC |
2354 | offset = 8; |
2355 | nflavours = 0; | |
2356 | while (offset != command->len) | |
2357 | { | |
46d1c23b TG |
2358 | struct mach_o_thread_command_external raw; |
2359 | ||
3af9a47b NC |
2360 | if (offset >= command->len) |
2361 | return -1; | |
2362 | ||
c2f09c75 | 2363 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 2364 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
3af9a47b NC |
2365 | return -1; |
2366 | ||
46d1c23b | 2367 | offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4; |
3af9a47b NC |
2368 | nflavours++; |
2369 | } | |
2370 | ||
b32e07d7 TG |
2371 | /* Allocate threads. */ |
2372 | cmd->flavours = bfd_alloc | |
2373 | (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)); | |
3af9a47b NC |
2374 | if (cmd->flavours == NULL) |
2375 | return -1; | |
2376 | cmd->nflavours = nflavours; | |
2377 | ||
2378 | offset = 8; | |
2379 | nflavours = 0; | |
2380 | while (offset != command->len) | |
2381 | { | |
46d1c23b TG |
2382 | struct mach_o_thread_command_external raw; |
2383 | ||
3af9a47b NC |
2384 | if (offset >= command->len) |
2385 | return -1; | |
2386 | ||
2387 | if (nflavours >= cmd->nflavours) | |
2388 | return -1; | |
2389 | ||
c2f09c75 | 2390 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
46d1c23b | 2391 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
3af9a47b NC |
2392 | return -1; |
2393 | ||
46d1c23b TG |
2394 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour); |
2395 | cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw); | |
2396 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4; | |
2397 | offset += cmd->flavours[nflavours].size + sizeof (raw); | |
3af9a47b NC |
2398 | nflavours++; |
2399 | } | |
2400 | ||
2401 | for (i = 0; i < nflavours; i++) | |
2402 | { | |
2403 | asection *bfdsec; | |
2404 | unsigned int snamelen; | |
2405 | char *sname; | |
2406 | const char *flavourstr; | |
2407 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
2408 | unsigned int j = 0; |
2409 | ||
3af9a47b NC |
2410 | switch (mdata->header.cputype) |
2411 | { | |
2412 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1e8a024a | 2413 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
3af9a47b NC |
2414 | flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); |
2415 | break; | |
2416 | case BFD_MACH_O_CPU_TYPE_I386: | |
1e8a024a | 2417 | case BFD_MACH_O_CPU_TYPE_X86_64: |
3af9a47b NC |
2418 | flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); |
2419 | break; | |
2420 | default: | |
2421 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
2422 | break; | |
2423 | } | |
a95a4550 | 2424 | |
3af9a47b | 2425 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 2426 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
2427 | if (sname == NULL) |
2428 | return -1; | |
2429 | ||
2430 | for (;;) | |
2431 | { | |
a95a4550 AM |
2432 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
2433 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 2434 | break; |
a95a4550 | 2435 | j++; |
3af9a47b NC |
2436 | } |
2437 | ||
117ed4f8 | 2438 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
a95a4550 | 2439 | |
3af9a47b NC |
2440 | bfdsec->vma = 0; |
2441 | bfdsec->lma = 0; | |
eea6121a | 2442 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
2443 | bfdsec->filepos = cmd->flavours[i].offset; |
2444 | bfdsec->alignment_power = 0x0; | |
3af9a47b NC |
2445 | |
2446 | cmd->section = bfdsec; | |
2447 | } | |
2448 | ||
2449 | return 0; | |
2450 | } | |
2451 | ||
a95a4550 | 2452 | static int |
ab273af8 | 2453 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 2454 | { |
046b007d | 2455 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
b32e07d7 | 2456 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
2457 | |
2458 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
2459 | ||
46d1c23b TG |
2460 | { |
2461 | struct mach_o_dysymtab_command_external raw; | |
2462 | ||
2463 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
2464 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2465 | return -1; | |
3af9a47b | 2466 | |
46d1c23b TG |
2467 | cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym); |
2468 | cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym); | |
2469 | cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym); | |
2470 | cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym); | |
2471 | cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym); | |
2472 | cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym); | |
2473 | cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff); | |
2474 | cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc); | |
2475 | cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff); | |
2476 | cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab); | |
2477 | cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff); | |
2478 | cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms); | |
2479 | cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff); | |
2480 | cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms); | |
2481 | cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff); | |
2482 | cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel); | |
2483 | cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff); | |
2484 | cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel); | |
2485 | } | |
046b007d TG |
2486 | |
2487 | if (cmd->nmodtab != 0) | |
2488 | { | |
046b007d TG |
2489 | unsigned int i; |
2490 | int wide = bfd_mach_o_wide_p (abfd); | |
2491 | unsigned int module_len = wide ? 56 : 52; | |
2492 | ||
2493 | cmd->dylib_module = | |
2494 | bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module)); | |
2495 | if (cmd->dylib_module == NULL) | |
2496 | return -1; | |
2497 | ||
2498 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) | |
2499 | return -1; | |
2500 | ||
2501 | for (i = 0; i < cmd->nmodtab; i++) | |
2502 | { | |
2503 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; | |
2504 | unsigned long v; | |
46d1c23b | 2505 | unsigned char buf[56]; |
046b007d | 2506 | |
91d6fa6a | 2507 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) |
046b007d TG |
2508 | return -1; |
2509 | ||
2510 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); | |
2511 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); | |
2512 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
2513 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); | |
2514 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); | |
2515 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); | |
2516 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); | |
2517 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); | |
2518 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); | |
2519 | v = bfd_h_get_32 (abfd, buf +36); | |
2520 | module->iinit = v & 0xffff; | |
2521 | module->iterm = (v >> 16) & 0xffff; | |
2522 | v = bfd_h_get_32 (abfd, buf + 40); | |
2523 | module->ninit = v & 0xffff; | |
2524 | module->nterm = (v >> 16) & 0xffff; | |
2525 | if (wide) | |
2526 | { | |
2527 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); | |
2528 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); | |
2529 | } | |
2530 | else | |
2531 | { | |
2532 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); | |
2533 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); | |
2534 | } | |
2535 | } | |
2536 | } | |
afbb9e17 | 2537 | |
046b007d TG |
2538 | if (cmd->ntoc != 0) |
2539 | { | |
046b007d TG |
2540 | unsigned int i; |
2541 | ||
2542 | cmd->dylib_toc = bfd_alloc | |
2543 | (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content)); | |
2544 | if (cmd->dylib_toc == NULL) | |
2545 | return -1; | |
2546 | ||
2547 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) | |
2548 | return -1; | |
2549 | ||
2550 | for (i = 0; i < cmd->ntoc; i++) | |
2551 | { | |
46d1c23b | 2552 | struct mach_o_dylib_table_of_contents_external raw; |
046b007d TG |
2553 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; |
2554 | ||
46d1c23b | 2555 | if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
2556 | return -1; |
2557 | ||
46d1c23b TG |
2558 | toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index); |
2559 | toc->module_index = bfd_h_get_32 (abfd, raw.module_index); | |
046b007d TG |
2560 | } |
2561 | } | |
2562 | ||
2563 | if (cmd->nindirectsyms != 0) | |
2564 | { | |
046b007d TG |
2565 | unsigned int i; |
2566 | ||
2567 | cmd->indirect_syms = bfd_alloc | |
2568 | (abfd, cmd->nindirectsyms * sizeof (unsigned int)); | |
2569 | if (cmd->indirect_syms == NULL) | |
2570 | return -1; | |
2571 | ||
2572 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) | |
2573 | return -1; | |
2574 | ||
2575 | for (i = 0; i < cmd->nindirectsyms; i++) | |
2576 | { | |
46d1c23b | 2577 | unsigned char raw[4]; |
046b007d TG |
2578 | unsigned int *is = &cmd->indirect_syms[i]; |
2579 | ||
46d1c23b | 2580 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
2581 | return -1; |
2582 | ||
46d1c23b | 2583 | *is = bfd_h_get_32 (abfd, raw); |
046b007d TG |
2584 | } |
2585 | } | |
2586 | ||
2587 | if (cmd->nextrefsyms != 0) | |
2588 | { | |
046b007d TG |
2589 | unsigned long v; |
2590 | unsigned int i; | |
2591 | ||
2592 | cmd->ext_refs = bfd_alloc | |
2593 | (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference)); | |
2594 | if (cmd->ext_refs == NULL) | |
2595 | return -1; | |
2596 | ||
2597 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) | |
2598 | return -1; | |
2599 | ||
2600 | for (i = 0; i < cmd->nextrefsyms; i++) | |
2601 | { | |
46d1c23b | 2602 | unsigned char raw[4]; |
046b007d TG |
2603 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; |
2604 | ||
46d1c23b | 2605 | if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw)) |
046b007d TG |
2606 | return -1; |
2607 | ||
b32e07d7 TG |
2608 | /* Fields isym and flags are written as bit-fields, thus we need |
2609 | a specific processing for endianness. */ | |
46d1c23b | 2610 | v = bfd_h_get_32 (abfd, raw); |
b32e07d7 TG |
2611 | if (bfd_big_endian (abfd)) |
2612 | { | |
2613 | ref->isym = (v >> 8) & 0xffffff; | |
2614 | ref->flags = v & 0xff; | |
2615 | } | |
2616 | else | |
2617 | { | |
2618 | ref->isym = v & 0xffffff; | |
2619 | ref->flags = (v >> 24) & 0xff; | |
2620 | } | |
046b007d TG |
2621 | } |
2622 | } | |
3af9a47b | 2623 | |
b32e07d7 TG |
2624 | if (mdata->dysymtab) |
2625 | return -1; | |
2626 | mdata->dysymtab = cmd; | |
2627 | ||
3af9a47b NC |
2628 | return 0; |
2629 | } | |
2630 | ||
a95a4550 | 2631 | static int |
ab273af8 | 2632 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 2633 | { |
046b007d TG |
2634 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
2635 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
46d1c23b | 2636 | struct mach_o_symtab_command_external raw; |
3af9a47b NC |
2637 | |
2638 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
2639 | ||
46d1c23b TG |
2640 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2641 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
3af9a47b | 2642 | return -1; |
a95a4550 | 2643 | |
46d1c23b TG |
2644 | symtab->symoff = bfd_h_get_32 (abfd, raw.symoff); |
2645 | symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms); | |
2646 | symtab->stroff = bfd_h_get_32 (abfd, raw.stroff); | |
2647 | symtab->strsize = bfd_h_get_32 (abfd, raw.strsize); | |
046b007d TG |
2648 | symtab->symbols = NULL; |
2649 | symtab->strtab = NULL; | |
3af9a47b | 2650 | |
046b007d | 2651 | if (symtab->nsyms != 0) |
15e1c58a TG |
2652 | abfd->flags |= HAS_SYMS; |
2653 | ||
046b007d TG |
2654 | if (mdata->symtab) |
2655 | return -1; | |
2656 | mdata->symtab = symtab; | |
3af9a47b NC |
2657 | return 0; |
2658 | } | |
2659 | ||
15e1c58a | 2660 | static int |
ab273af8 | 2661 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
15e1c58a TG |
2662 | { |
2663 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; | |
15e1c58a TG |
2664 | |
2665 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); | |
2666 | ||
46d1c23b TG |
2667 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2668 | || bfd_bread (cmd->uuid, 16, abfd) != 16) | |
15e1c58a TG |
2669 | return -1; |
2670 | ||
15e1c58a TG |
2671 | return 0; |
2672 | } | |
2673 | ||
046b007d | 2674 | static int |
ab273af8 | 2675 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
2676 | { |
2677 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; | |
46d1c23b | 2678 | struct mach_o_linkedit_data_command_external raw; |
046b007d | 2679 | |
46d1c23b TG |
2680 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2681 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
046b007d TG |
2682 | return -1; |
2683 | ||
46d1c23b TG |
2684 | cmd->dataoff = bfd_get_32 (abfd, raw.dataoff); |
2685 | cmd->datasize = bfd_get_32 (abfd, raw.datasize); | |
046b007d TG |
2686 | return 0; |
2687 | } | |
2688 | ||
2689 | static int | |
ab273af8 | 2690 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
046b007d TG |
2691 | { |
2692 | bfd_mach_o_str_command *cmd = &command->command.str; | |
46d1c23b | 2693 | struct mach_o_str_command_external raw; |
046b007d TG |
2694 | unsigned long off; |
2695 | ||
46d1c23b TG |
2696 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2697 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
046b007d TG |
2698 | return -1; |
2699 | ||
46d1c23b | 2700 | off = bfd_get_32 (abfd, raw.str); |
046b007d TG |
2701 | cmd->stroff = command->offset + off; |
2702 | cmd->str_len = command->len - off; | |
2703 | cmd->str = bfd_alloc (abfd, cmd->str_len); | |
2704 | if (cmd->str == NULL) | |
2705 | return -1; | |
2706 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 | |
91d6fa6a | 2707 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
046b007d TG |
2708 | return -1; |
2709 | return 0; | |
2710 | } | |
2711 | ||
ad86f1fb | 2712 | static int |
ab273af8 | 2713 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
ad86f1fb TG |
2714 | { |
2715 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; | |
46d1c23b | 2716 | struct mach_o_dyld_info_command_external raw; |
ad86f1fb | 2717 | |
46d1c23b TG |
2718 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2719 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
ad86f1fb TG |
2720 | return -1; |
2721 | ||
46d1c23b TG |
2722 | cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off); |
2723 | cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size); | |
2724 | cmd->bind_off = bfd_get_32 (abfd, raw.bind_off); | |
2725 | cmd->bind_size = bfd_get_32 (abfd, raw.bind_size); | |
2726 | cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off); | |
2727 | cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size); | |
2728 | cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off); | |
2729 | cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size); | |
2730 | cmd->export_off = bfd_get_32 (abfd, raw.export_off); | |
2731 | cmd->export_size = bfd_get_32 (abfd, raw.export_size); | |
ad86f1fb TG |
2732 | return 0; |
2733 | } | |
2734 | ||
edbdea0e TG |
2735 | static bfd_boolean |
2736 | bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command) | |
2737 | { | |
2738 | bfd_mach_o_version_min_command *cmd = &command->command.version_min; | |
2739 | struct mach_o_version_min_command_external raw; | |
2740 | unsigned int ver; | |
2741 | ||
2742 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 | |
2743 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2744 | return FALSE; | |
2745 | ||
2746 | ver = bfd_get_32 (abfd, raw.version); | |
2747 | cmd->rel = ver >> 16; | |
2748 | cmd->maj = ver >> 8; | |
2749 | cmd->min = ver; | |
2750 | cmd->reserved = bfd_get_32 (abfd, raw.reserved); | |
2751 | return TRUE; | |
2752 | } | |
2753 | ||
3af9a47b | 2754 | static int |
ab273af8 TG |
2755 | bfd_mach_o_read_segment (bfd *abfd, |
2756 | bfd_mach_o_load_command *command, | |
2757 | unsigned int wide) | |
3af9a47b | 2758 | { |
3af9a47b NC |
2759 | bfd_mach_o_segment_command *seg = &command->command.segment; |
2760 | unsigned long i; | |
a95a4550 | 2761 | |
1e8a024a TG |
2762 | if (wide) |
2763 | { | |
46d1c23b TG |
2764 | struct mach_o_segment_command_64_external raw; |
2765 | ||
1e8a024a | 2766 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
3af9a47b | 2767 | |
46d1c23b TG |
2768 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2769 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2770 | return -1; | |
3af9a47b | 2771 | |
46d1c23b | 2772 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 2773 | seg->segname[16] = '\0'; |
1e8a024a | 2774 | |
46d1c23b TG |
2775 | seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr); |
2776 | seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize); | |
2777 | seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff); | |
2778 | seg->filesize = bfd_h_get_64 (abfd, raw.filesize); | |
2779 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
2780 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
2781 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
2782 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a TG |
2783 | } |
2784 | else | |
2785 | { | |
46d1c23b TG |
2786 | struct mach_o_segment_command_32_external raw; |
2787 | ||
1e8a024a TG |
2788 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
2789 | ||
46d1c23b TG |
2790 | if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0 |
2791 | || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw)) | |
2792 | return -1; | |
1e8a024a | 2793 | |
46d1c23b | 2794 | memcpy (seg->segname, raw.segname, 16); |
15e1c58a | 2795 | seg->segname[16] = '\0'; |
1e8a024a | 2796 | |
46d1c23b TG |
2797 | seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr); |
2798 | seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize); | |
2799 | seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff); | |
2800 | seg->filesize = bfd_h_get_32 (abfd, raw.filesize); | |
2801 | seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot); | |
2802 | seg->initprot = bfd_h_get_32 (abfd, raw.initprot); | |
2803 | seg->nsects = bfd_h_get_32 (abfd, raw.nsects); | |
2804 | seg->flags = bfd_h_get_32 (abfd, raw.flags); | |
1e8a024a | 2805 | } |
9d4b6009 TG |
2806 | seg->sect_head = NULL; |
2807 | seg->sect_tail = NULL; | |
3af9a47b | 2808 | |
f1bde64c | 2809 | for (i = 0; i < seg->nsects; i++) |
3af9a47b | 2810 | { |
f1bde64c TG |
2811 | bfd_vma segoff; |
2812 | asection *sec; | |
a95a4550 | 2813 | |
f1bde64c TG |
2814 | if (wide) |
2815 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE | |
2816 | + (i * BFD_MACH_O_SECTION_64_SIZE); | |
2817 | else | |
2818 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE | |
2819 | + (i * BFD_MACH_O_SECTION_SIZE); | |
3af9a47b | 2820 | |
f1bde64c TG |
2821 | sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide); |
2822 | if (sec == NULL) | |
2823 | return -1; | |
2824 | ||
2825 | bfd_mach_o_append_section_to_segment (seg, sec); | |
3af9a47b NC |
2826 | } |
2827 | ||
2828 | return 0; | |
2829 | } | |
2830 | ||
1e8a024a | 2831 | static int |
ab273af8 | 2832 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 2833 | { |
ab273af8 | 2834 | return bfd_mach_o_read_segment (abfd, command, 0); |
1e8a024a TG |
2835 | } |
2836 | ||
2837 | static int | |
ab273af8 | 2838 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
1e8a024a | 2839 | { |
ab273af8 | 2840 | return bfd_mach_o_read_segment (abfd, command, 1); |
1e8a024a TG |
2841 | } |
2842 | ||
3af9a47b | 2843 | static int |
ab273af8 | 2844 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b | 2845 | { |
46d1c23b TG |
2846 | struct mach_o_load_command_external raw; |
2847 | unsigned int cmd; | |
3af9a47b | 2848 | |
046b007d | 2849 | /* Read command type and length. */ |
c2f09c75 | 2850 | if (bfd_seek (abfd, command->offset, SEEK_SET) != 0 |
46d1c23b | 2851 | || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE) |
3af9a47b NC |
2852 | return -1; |
2853 | ||
46d1c23b TG |
2854 | cmd = bfd_h_get_32 (abfd, raw.cmd); |
2855 | command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD; | |
2856 | command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE; | |
2857 | command->len = bfd_h_get_32 (abfd, raw.cmdsize); | |
3af9a47b NC |
2858 | |
2859 | switch (command->type) | |
2860 | { | |
2861 | case BFD_MACH_O_LC_SEGMENT: | |
ab273af8 | 2862 | if (bfd_mach_o_read_segment_32 (abfd, command) != 0) |
1e8a024a TG |
2863 | return -1; |
2864 | break; | |
2865 | case BFD_MACH_O_LC_SEGMENT_64: | |
ab273af8 | 2866 | if (bfd_mach_o_read_segment_64 (abfd, command) != 0) |
3af9a47b NC |
2867 | return -1; |
2868 | break; | |
2869 | case BFD_MACH_O_LC_SYMTAB: | |
ab273af8 | 2870 | if (bfd_mach_o_read_symtab (abfd, command) != 0) |
3af9a47b NC |
2871 | return -1; |
2872 | break; | |
2873 | case BFD_MACH_O_LC_SYMSEG: | |
2874 | break; | |
2875 | case BFD_MACH_O_LC_THREAD: | |
2876 | case BFD_MACH_O_LC_UNIXTHREAD: | |
ab273af8 | 2877 | if (bfd_mach_o_read_thread (abfd, command) != 0) |
3af9a47b NC |
2878 | return -1; |
2879 | break; | |
2880 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
2881 | case BFD_MACH_O_LC_ID_DYLINKER: | |
ab273af8 | 2882 | if (bfd_mach_o_read_dylinker (abfd, command) != 0) |
3af9a47b NC |
2883 | return -1; |
2884 | break; | |
2885 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
2886 | case BFD_MACH_O_LC_ID_DYLIB: | |
2887 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
046b007d | 2888 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
73017762 | 2889 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
ab273af8 | 2890 | if (bfd_mach_o_read_dylib (abfd, command) != 0) |
3af9a47b NC |
2891 | return -1; |
2892 | break; | |
2893 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
ab273af8 | 2894 | if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0) |
3af9a47b NC |
2895 | return -1; |
2896 | break; | |
2897 | case BFD_MACH_O_LC_LOADFVMLIB: | |
2898 | case BFD_MACH_O_LC_IDFVMLIB: | |
2899 | case BFD_MACH_O_LC_IDENT: | |
2900 | case BFD_MACH_O_LC_FVMFILE: | |
2901 | case BFD_MACH_O_LC_PREPAGE: | |
2902 | case BFD_MACH_O_LC_ROUTINES: | |
9b02d212 | 2903 | case BFD_MACH_O_LC_ROUTINES_64: |
046b007d | 2904 | break; |
3af9a47b | 2905 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
046b007d TG |
2906 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
2907 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
2908 | case BFD_MACH_O_LC_SUB_CLIENT: | |
0c9b2b4c | 2909 | case BFD_MACH_O_LC_RPATH: |
ab273af8 | 2910 | if (bfd_mach_o_read_str (abfd, command) != 0) |
046b007d | 2911 | return -1; |
3af9a47b NC |
2912 | break; |
2913 | case BFD_MACH_O_LC_DYSYMTAB: | |
ab273af8 | 2914 | if (bfd_mach_o_read_dysymtab (abfd, command) != 0) |
3af9a47b NC |
2915 | return -1; |
2916 | break; | |
3af9a47b NC |
2917 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: |
2918 | case BFD_MACH_O_LC_PREBIND_CKSUM: | |
2919 | break; | |
15e1c58a | 2920 | case BFD_MACH_O_LC_UUID: |
ab273af8 | 2921 | if (bfd_mach_o_read_uuid (abfd, command) != 0) |
15e1c58a TG |
2922 | return -1; |
2923 | break; | |
2924 | case BFD_MACH_O_LC_CODE_SIGNATURE: | |
846b9259 | 2925 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
edbdea0e | 2926 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
ab273af8 | 2927 | if (bfd_mach_o_read_linkedit (abfd, command) != 0) |
046b007d | 2928 | return -1; |
15e1c58a | 2929 | break; |
ad86f1fb | 2930 | case BFD_MACH_O_LC_DYLD_INFO: |
ab273af8 | 2931 | if (bfd_mach_o_read_dyld_info (abfd, command) != 0) |
ad86f1fb TG |
2932 | return -1; |
2933 | break; | |
edbdea0e TG |
2934 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
2935 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: | |
2936 | if (!bfd_mach_o_read_version_min (abfd, command)) | |
2937 | return -1; | |
2938 | break; | |
3af9a47b | 2939 | default: |
c0d9d051 TG |
2940 | (*_bfd_error_handler)(_("%B: unable to read unknown load command 0x%lx"), |
2941 | abfd, (unsigned long) command->type); | |
3af9a47b NC |
2942 | break; |
2943 | } | |
2944 | ||
2945 | return 0; | |
2946 | } | |
2947 | ||
2948 | static void | |
116c20d2 | 2949 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b | 2950 | { |
046b007d | 2951 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b | 2952 | long csect = 0; |
f1bde64c | 2953 | unsigned long i; |
a95a4550 | 2954 | |
15e1c58a | 2955 | /* Count total number of sections. */ |
3af9a47b NC |
2956 | mdata->nsects = 0; |
2957 | ||
2958 | for (i = 0; i < mdata->header.ncmds; i++) | |
2959 | { | |
1e8a024a TG |
2960 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
2961 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 2962 | { |
e84d6fca AM |
2963 | bfd_mach_o_segment_command *seg; |
2964 | ||
2965 | seg = &mdata->commands[i].command.segment; | |
3af9a47b NC |
2966 | mdata->nsects += seg->nsects; |
2967 | } | |
2968 | } | |
2969 | ||
15e1c58a | 2970 | /* Allocate sections array. */ |
e84d6fca AM |
2971 | mdata->sections = bfd_alloc (abfd, |
2972 | mdata->nsects * sizeof (bfd_mach_o_section *)); | |
15e1c58a TG |
2973 | |
2974 | /* Fill the array. */ | |
3af9a47b NC |
2975 | csect = 0; |
2976 | ||
2977 | for (i = 0; i < mdata->header.ncmds; i++) | |
2978 | { | |
1e8a024a TG |
2979 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
2980 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) | |
3af9a47b | 2981 | { |
e84d6fca | 2982 | bfd_mach_o_segment_command *seg; |
f1bde64c | 2983 | bfd_mach_o_section *sec; |
3af9a47b | 2984 | |
e84d6fca | 2985 | seg = &mdata->commands[i].command.segment; |
3af9a47b NC |
2986 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); |
2987 | ||
f1bde64c TG |
2988 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
2989 | mdata->sections[csect++] = sec; | |
3af9a47b NC |
2990 | } |
2991 | } | |
2992 | } | |
2993 | ||
afbb9e17 | 2994 | static bfd_boolean |
116c20d2 | 2995 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b | 2996 | { |
046b007d | 2997 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
2998 | bfd_mach_o_thread_command *cmd = NULL; |
2999 | unsigned long i; | |
3000 | ||
3001 | for (i = 0; i < mdata->header.ncmds; i++) | |
afbb9e17 TG |
3002 | if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || |
3003 | (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) | |
3004 | { | |
3005 | cmd = &mdata->commands[i].command.thread; | |
3006 | break; | |
3007 | } | |
3af9a47b NC |
3008 | |
3009 | if (cmd == NULL) | |
afbb9e17 | 3010 | return FALSE; |
3af9a47b | 3011 | |
afbb9e17 | 3012 | /* FIXME: create a subtarget hook ? */ |
3af9a47b NC |
3013 | for (i = 0; i < cmd->nflavours; i++) |
3014 | { | |
a95a4550 | 3015 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
e84d6fca | 3016 | && (cmd->flavours[i].flavour |
15e1c58a | 3017 | == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32)) |
3af9a47b NC |
3018 | { |
3019 | unsigned char buf[4]; | |
3020 | ||
c2f09c75 TG |
3021 | if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0 |
3022 | || bfd_bread (buf, 4, abfd) != 4) | |
afbb9e17 | 3023 | return FALSE; |
3af9a47b NC |
3024 | |
3025 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
3026 | } | |
a95a4550 | 3027 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
3af9a47b NC |
3028 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
3029 | { | |
3030 | unsigned char buf[4]; | |
3031 | ||
c2f09c75 TG |
3032 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
3033 | || bfd_bread (buf, 4, abfd) != 4) | |
afbb9e17 | 3034 | return FALSE; |
3af9a47b NC |
3035 | |
3036 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
3037 | } | |
1e8a024a | 3038 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
b32e07d7 | 3039 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
1e8a024a TG |
3040 | { |
3041 | unsigned char buf[8]; | |
3042 | ||
c2f09c75 TG |
3043 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
3044 | || bfd_bread (buf, 8, abfd) != 8) | |
afbb9e17 | 3045 | return FALSE; |
1e8a024a TG |
3046 | |
3047 | abfd->start_address = bfd_h_get_64 (abfd, buf); | |
3048 | } | |
3049 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) | |
3050 | && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) | |
3051 | { | |
3052 | unsigned char buf[8]; | |
3053 | ||
c2f09c75 TG |
3054 | if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
3055 | || bfd_bread (buf, 8, abfd) != 8) | |
afbb9e17 | 3056 | return FALSE; |
1e8a024a TG |
3057 | |
3058 | abfd->start_address = bfd_h_get_64 (abfd, buf); | |
3059 | } | |
3af9a47b NC |
3060 | } |
3061 | ||
afbb9e17 | 3062 | return TRUE; |
3af9a47b NC |
3063 | } |
3064 | ||
42fa0891 TG |
3065 | bfd_boolean |
3066 | bfd_mach_o_set_arch_mach (bfd *abfd, | |
3067 | enum bfd_architecture arch, | |
3068 | unsigned long machine) | |
3069 | { | |
3070 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); | |
3071 | ||
3072 | /* If this isn't the right architecture for this backend, and this | |
3073 | isn't the generic backend, fail. */ | |
3074 | if (arch != bed->arch | |
3075 | && arch != bfd_arch_unknown | |
3076 | && bed->arch != bfd_arch_unknown) | |
3077 | return FALSE; | |
3078 | ||
3079 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
3080 | } | |
3081 | ||
afbb9e17 | 3082 | static bfd_boolean |
116c20d2 NC |
3083 | bfd_mach_o_scan (bfd *abfd, |
3084 | bfd_mach_o_header *header, | |
3085 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
3086 | { |
3087 | unsigned int i; | |
3af9a47b NC |
3088 | enum bfd_architecture cputype; |
3089 | unsigned long cpusubtype; | |
1e8a024a TG |
3090 | unsigned int hdrsize; |
3091 | ||
c2f09c75 | 3092 | hdrsize = mach_o_wide_p (header) ? |
154a1ee5 | 3093 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
3af9a47b | 3094 | |
3af9a47b | 3095 | mdata->header = *header; |
3af9a47b | 3096 | |
154a1ee5 | 3097 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
15e1c58a TG |
3098 | switch (header->filetype) |
3099 | { | |
3100 | case BFD_MACH_O_MH_OBJECT: | |
3101 | abfd->flags |= HAS_RELOC; | |
3102 | break; | |
3103 | case BFD_MACH_O_MH_EXECUTE: | |
3104 | abfd->flags |= EXEC_P; | |
3105 | break; | |
3106 | case BFD_MACH_O_MH_DYLIB: | |
3107 | case BFD_MACH_O_MH_BUNDLE: | |
3108 | abfd->flags |= DYNAMIC; | |
3109 | break; | |
3110 | } | |
3111 | ||
3af9a47b NC |
3112 | abfd->tdata.mach_o_data = mdata; |
3113 | ||
e84d6fca AM |
3114 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
3115 | &cputype, &cpusubtype); | |
3af9a47b NC |
3116 | if (cputype == bfd_arch_unknown) |
3117 | { | |
afbb9e17 TG |
3118 | (*_bfd_error_handler) |
3119 | (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), | |
3120 | header->cputype, header->cpusubtype); | |
3121 | return FALSE; | |
3af9a47b NC |
3122 | } |
3123 | ||
3124 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 3125 | |
3af9a47b NC |
3126 | if (header->ncmds != 0) |
3127 | { | |
046b007d TG |
3128 | mdata->commands = bfd_alloc |
3129 | (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)); | |
3af9a47b | 3130 | if (mdata->commands == NULL) |
afbb9e17 | 3131 | return FALSE; |
a95a4550 | 3132 | |
3af9a47b NC |
3133 | for (i = 0; i < header->ncmds; i++) |
3134 | { | |
3135 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
3136 | ||
3137 | if (i == 0) | |
1e8a024a | 3138 | cur->offset = hdrsize; |
3af9a47b NC |
3139 | else |
3140 | { | |
3141 | bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; | |
3142 | cur->offset = prev->offset + prev->len; | |
3143 | } | |
3144 | ||
ab273af8 | 3145 | if (bfd_mach_o_read_command (abfd, cur) < 0) |
afbb9e17 | 3146 | return FALSE; |
a95a4550 | 3147 | } |
3af9a47b NC |
3148 | } |
3149 | ||
3150 | if (bfd_mach_o_scan_start_address (abfd) < 0) | |
afbb9e17 | 3151 | return FALSE; |
3af9a47b NC |
3152 | |
3153 | bfd_mach_o_flatten_sections (abfd); | |
afbb9e17 | 3154 | return TRUE; |
3af9a47b NC |
3155 | } |
3156 | ||
b34976b6 | 3157 | bfd_boolean |
154a1ee5 | 3158 | bfd_mach_o_mkobject_init (bfd *abfd) |
3af9a47b NC |
3159 | { |
3160 | bfd_mach_o_data_struct *mdata = NULL; | |
3161 | ||
116c20d2 | 3162 | mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 3163 | if (mdata == NULL) |
b34976b6 | 3164 | return FALSE; |
3af9a47b NC |
3165 | abfd->tdata.mach_o_data = mdata; |
3166 | ||
3167 | mdata->header.magic = 0; | |
3168 | mdata->header.cputype = 0; | |
3169 | mdata->header.cpusubtype = 0; | |
3170 | mdata->header.filetype = 0; | |
3171 | mdata->header.ncmds = 0; | |
3172 | mdata->header.sizeofcmds = 0; | |
3173 | mdata->header.flags = 0; | |
3174 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
3175 | mdata->commands = NULL; | |
3af9a47b NC |
3176 | mdata->nsects = 0; |
3177 | mdata->sections = NULL; | |
3af9a47b | 3178 | |
b34976b6 | 3179 | return TRUE; |
3af9a47b NC |
3180 | } |
3181 | ||
42fa0891 TG |
3182 | static bfd_boolean |
3183 | bfd_mach_o_gen_mkobject (bfd *abfd) | |
3184 | { | |
3185 | bfd_mach_o_data_struct *mdata; | |
3186 | ||
3187 | if (!bfd_mach_o_mkobject_init (abfd)) | |
3188 | return FALSE; | |
3189 | ||
3190 | mdata = bfd_mach_o_get_data (abfd); | |
3191 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; | |
3192 | mdata->header.cputype = 0; | |
3193 | mdata->header.cpusubtype = 0; | |
3194 | mdata->header.byteorder = abfd->xvec->byteorder; | |
3195 | mdata->header.version = 1; | |
3196 | ||
3197 | return TRUE; | |
3198 | } | |
3199 | ||
3af9a47b | 3200 | const bfd_target * |
154a1ee5 TG |
3201 | bfd_mach_o_header_p (bfd *abfd, |
3202 | bfd_mach_o_filetype filetype, | |
3203 | bfd_mach_o_cpu_type cputype) | |
3af9a47b | 3204 | { |
e84d6fca | 3205 | struct bfd_preserve preserve; |
3af9a47b NC |
3206 | bfd_mach_o_header header; |
3207 | ||
e84d6fca | 3208 | preserve.marker = NULL; |
154a1ee5 | 3209 | if (!bfd_mach_o_read_header (abfd, &header)) |
e84d6fca | 3210 | goto wrong; |
3af9a47b | 3211 | |
e84d6fca AM |
3212 | if (! (header.byteorder == BFD_ENDIAN_BIG |
3213 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 3214 | { |
4a97a0e5 AM |
3215 | (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"), |
3216 | (unsigned long) header.byteorder); | |
e84d6fca | 3217 | goto wrong; |
3af9a47b NC |
3218 | } |
3219 | ||
e84d6fca AM |
3220 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
3221 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
3222 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
3223 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
3224 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
3225 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
3226 | goto wrong; | |
3af9a47b | 3227 | |
154a1ee5 TG |
3228 | /* Check cputype and filetype. |
3229 | In case of wildcard, do not accept magics that are handled by existing | |
3230 | targets. */ | |
3231 | if (cputype) | |
3232 | { | |
3233 | if (header.cputype != cputype) | |
3234 | goto wrong; | |
3235 | } | |
3236 | else | |
3237 | { | |
3238 | switch (header.cputype) | |
3239 | { | |
3240 | case BFD_MACH_O_CPU_TYPE_I386: | |
3241 | /* Handled by mach-o-i386 */ | |
3242 | goto wrong; | |
3243 | default: | |
3244 | break; | |
3245 | } | |
3246 | } | |
3247 | if (filetype) | |
3248 | { | |
3249 | if (header.filetype != filetype) | |
3250 | goto wrong; | |
3251 | } | |
3252 | else | |
3253 | { | |
3254 | switch (header.filetype) | |
3255 | { | |
3256 | case BFD_MACH_O_MH_CORE: | |
3257 | /* Handled by core_p */ | |
3258 | goto wrong; | |
3259 | default: | |
3260 | break; | |
3261 | } | |
3262 | } | |
3263 | ||
e84d6fca AM |
3264 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3265 | if (preserve.marker == NULL | |
3266 | || !bfd_preserve_save (abfd, &preserve)) | |
3267 | goto fail; | |
3af9a47b | 3268 | |
afbb9e17 TG |
3269 | if (!bfd_mach_o_scan (abfd, &header, |
3270 | (bfd_mach_o_data_struct *) preserve.marker)) | |
e84d6fca | 3271 | goto wrong; |
a95a4550 | 3272 | |
e84d6fca | 3273 | bfd_preserve_finish (abfd, &preserve); |
3af9a47b | 3274 | return abfd->xvec; |
e84d6fca AM |
3275 | |
3276 | wrong: | |
3277 | bfd_set_error (bfd_error_wrong_format); | |
3278 | ||
3279 | fail: | |
3280 | if (preserve.marker != NULL) | |
3281 | bfd_preserve_restore (abfd, &preserve); | |
3282 | return NULL; | |
3af9a47b NC |
3283 | } |
3284 | ||
154a1ee5 TG |
3285 | static const bfd_target * |
3286 | bfd_mach_o_gen_object_p (bfd *abfd) | |
3af9a47b | 3287 | { |
154a1ee5 TG |
3288 | return bfd_mach_o_header_p (abfd, 0, 0); |
3289 | } | |
e84d6fca | 3290 | |
154a1ee5 TG |
3291 | static const bfd_target * |
3292 | bfd_mach_o_gen_core_p (bfd *abfd) | |
3293 | { | |
3294 | return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0); | |
3af9a47b NC |
3295 | } |
3296 | ||
3297 | typedef struct mach_o_fat_archentry | |
3298 | { | |
3299 | unsigned long cputype; | |
3300 | unsigned long cpusubtype; | |
3301 | unsigned long offset; | |
3302 | unsigned long size; | |
3303 | unsigned long align; | |
3af9a47b NC |
3304 | } mach_o_fat_archentry; |
3305 | ||
3306 | typedef struct mach_o_fat_data_struct | |
3307 | { | |
3308 | unsigned long magic; | |
3309 | unsigned long nfat_arch; | |
3310 | mach_o_fat_archentry *archentries; | |
3311 | } mach_o_fat_data_struct; | |
3312 | ||
3313 | const bfd_target * | |
116c20d2 | 3314 | bfd_mach_o_archive_p (bfd *abfd) |
3af9a47b | 3315 | { |
e84d6fca | 3316 | mach_o_fat_data_struct *adata = NULL; |
46d1c23b | 3317 | struct mach_o_fat_header_external hdr; |
3af9a47b NC |
3318 | unsigned long i; |
3319 | ||
c2f09c75 | 3320 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
46d1c23b | 3321 | || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr)) |
e84d6fca | 3322 | goto error; |
3af9a47b | 3323 | |
116c20d2 | 3324 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 3325 | if (adata == NULL) |
e84d6fca | 3326 | goto error; |
a95a4550 | 3327 | |
46d1c23b TG |
3328 | adata->magic = bfd_getb32 (hdr.magic); |
3329 | adata->nfat_arch = bfd_getb32 (hdr.nfat_arch); | |
3af9a47b | 3330 | if (adata->magic != 0xcafebabe) |
e84d6fca | 3331 | goto error; |
27cc28f9 AS |
3332 | /* Avoid matching Java bytecode files, which have the same magic number. |
3333 | In the Java bytecode file format this field contains the JVM version, | |
3334 | which starts at 43.0. */ | |
3335 | if (adata->nfat_arch > 30) | |
3336 | goto error; | |
3af9a47b | 3337 | |
c2f09c75 | 3338 | adata->archentries = |
3af9a47b NC |
3339 | bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); |
3340 | if (adata->archentries == NULL) | |
e84d6fca | 3341 | goto error; |
3af9a47b NC |
3342 | |
3343 | for (i = 0; i < adata->nfat_arch; i++) | |
3344 | { | |
46d1c23b TG |
3345 | struct mach_o_fat_arch_external arch; |
3346 | if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch)) | |
e84d6fca | 3347 | goto error; |
46d1c23b TG |
3348 | adata->archentries[i].cputype = bfd_getb32 (arch.cputype); |
3349 | adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype); | |
3350 | adata->archentries[i].offset = bfd_getb32 (arch.offset); | |
3351 | adata->archentries[i].size = bfd_getb32 (arch.size); | |
3352 | adata->archentries[i].align = bfd_getb32 (arch.align); | |
3af9a47b NC |
3353 | } |
3354 | ||
3355 | abfd->tdata.mach_o_fat_data = adata; | |
3356 | return abfd->xvec; | |
e84d6fca AM |
3357 | |
3358 | error: | |
3359 | if (adata != NULL) | |
3360 | bfd_release (abfd, adata); | |
3361 | bfd_set_error (bfd_error_wrong_format); | |
3362 | return NULL; | |
3af9a47b NC |
3363 | } |
3364 | ||
3365 | bfd * | |
116c20d2 | 3366 | bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 3367 | { |
e84d6fca | 3368 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
3369 | mach_o_fat_archentry *entry = NULL; |
3370 | unsigned long i; | |
15e1c58a | 3371 | bfd *nbfd; |
15e1c58a TG |
3372 | enum bfd_architecture arch_type; |
3373 | unsigned long arch_subtype; | |
3af9a47b | 3374 | |
e84d6fca | 3375 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
3376 | BFD_ASSERT (adata != NULL); |
3377 | ||
3378 | /* Find index of previous entry. */ | |
3379 | if (prev == NULL) | |
3380 | i = 0; /* Start at first one. */ | |
3381 | else | |
3382 | { | |
3383 | for (i = 0; i < adata->nfat_arch; i++) | |
3384 | { | |
15e1c58a | 3385 | if (adata->archentries[i].offset == prev->origin) |
3af9a47b NC |
3386 | break; |
3387 | } | |
3388 | ||
3389 | if (i == adata->nfat_arch) | |
3390 | { | |
3391 | /* Not found. */ | |
3392 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 3393 | return NULL; |
3af9a47b NC |
3394 | } |
3395 | i++; /* Get next entry. */ | |
3396 | } | |
a95a4550 | 3397 | |
3af9a47b NC |
3398 | if (i >= adata->nfat_arch) |
3399 | { | |
3400 | bfd_set_error (bfd_error_no_more_archived_files); | |
3401 | return NULL; | |
3402 | } | |
3403 | ||
3404 | entry = &adata->archentries[i]; | |
15e1c58a TG |
3405 | nbfd = _bfd_new_bfd_contained_in (archive); |
3406 | if (nbfd == NULL) | |
3407 | return NULL; | |
3408 | ||
3409 | nbfd->origin = entry->offset; | |
3410 | ||
3411 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, | |
3412 | &arch_type, &arch_subtype); | |
846b9259 | 3413 | |
c0d9d051 TG |
3414 | /* Create the member filename. Use ARCH_NAME. */ |
3415 | nbfd->filename = bfd_printable_arch_mach (arch_type, arch_subtype); | |
15e1c58a | 3416 | nbfd->iostream = NULL; |
846b9259 | 3417 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
3af9a47b | 3418 | |
15e1c58a | 3419 | return nbfd; |
3af9a47b NC |
3420 | } |
3421 | ||
846b9259 TG |
3422 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
3423 | If ABFD is a fat image containing a member that corresponds to FORMAT | |
3424 | and ARCH, returns it. | |
3425 | In other case, returns NULL. | |
3426 | This function allows transparent uses of fat images. */ | |
3427 | bfd * | |
3428 | bfd_mach_o_fat_extract (bfd *abfd, | |
3429 | bfd_format format, | |
3430 | const bfd_arch_info_type *arch) | |
3431 | { | |
3432 | bfd *res; | |
3433 | mach_o_fat_data_struct *adata; | |
3434 | unsigned int i; | |
3435 | ||
3436 | if (bfd_check_format (abfd, format)) | |
3437 | { | |
3438 | if (bfd_get_arch_info (abfd) == arch) | |
3439 | return abfd; | |
3440 | return NULL; | |
3441 | } | |
3442 | if (!bfd_check_format (abfd, bfd_archive) | |
3443 | || abfd->xvec != &mach_o_fat_vec) | |
3444 | return NULL; | |
c2f09c75 | 3445 | |
846b9259 TG |
3446 | /* This is a Mach-O fat image. */ |
3447 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; | |
3448 | BFD_ASSERT (adata != NULL); | |
3449 | ||
3450 | for (i = 0; i < adata->nfat_arch; i++) | |
3451 | { | |
3452 | struct mach_o_fat_archentry *e = &adata->archentries[i]; | |
3453 | enum bfd_architecture cpu_type; | |
3454 | unsigned long cpu_subtype; | |
3455 | ||
3456 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, | |
3457 | &cpu_type, &cpu_subtype); | |
3458 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) | |
3459 | continue; | |
3460 | ||
3461 | /* The architecture is found. */ | |
3462 | res = _bfd_new_bfd_contained_in (abfd); | |
3463 | if (res == NULL) | |
3464 | return NULL; | |
3465 | ||
3466 | res->origin = e->offset; | |
3467 | ||
c0d9d051 | 3468 | res->filename = bfd_printable_arch_mach (cpu_type, cpu_subtype); |
846b9259 TG |
3469 | res->iostream = NULL; |
3470 | ||
3471 | if (bfd_check_format (res, format)) | |
3472 | { | |
3473 | BFD_ASSERT (bfd_get_arch_info (res) == arch); | |
3474 | return res; | |
3475 | } | |
3476 | bfd_close (res); | |
3477 | return NULL; | |
3478 | } | |
3479 | ||
3480 | return NULL; | |
3481 | } | |
3482 | ||
3af9a47b | 3483 | int |
116c20d2 NC |
3484 | bfd_mach_o_lookup_command (bfd *abfd, |
3485 | bfd_mach_o_load_command_type type, | |
3486 | bfd_mach_o_load_command **mcommand) | |
3af9a47b | 3487 | { |
046b007d | 3488 | struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
3489 | bfd_mach_o_load_command *ncmd = NULL; |
3490 | unsigned int i, num; | |
3491 | ||
3af9a47b NC |
3492 | BFD_ASSERT (md != NULL); |
3493 | BFD_ASSERT (mcommand != NULL); | |
3494 | ||
3495 | num = 0; | |
3496 | for (i = 0; i < md->header.ncmds; i++) | |
3497 | { | |
3498 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; | |
3499 | ||
3500 | if (cmd->type != type) | |
3501 | continue; | |
3502 | ||
3503 | if (num == 0) | |
3504 | ncmd = cmd; | |
3505 | num++; | |
3506 | } | |
3507 | ||
3508 | *mcommand = ncmd; | |
3509 | return num; | |
3510 | } | |
3511 | ||
3512 | unsigned long | |
116c20d2 | 3513 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
3514 | { |
3515 | switch (type) | |
3516 | { | |
3517 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
3518 | return 0x04000000; | |
3519 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
3520 | return 0xffffe000; | |
3521 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
3522 | return 0xc0000000; | |
3523 | case BFD_MACH_O_CPU_TYPE_I386: | |
3524 | return 0xc0000000; | |
3525 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
3526 | return 0xf0000000; | |
3527 | case BFD_MACH_O_CPU_TYPE_I860: | |
3528 | return 0; | |
3529 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
e84d6fca | 3530 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
3531 | default: |
3532 | return 0; | |
3533 | } | |
3534 | } | |
3535 | ||
c5012cd8 | 3536 | const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
046b007d TG |
3537 | { |
3538 | { "regular", BFD_MACH_O_S_REGULAR}, | |
3539 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, | |
3540 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, | |
3541 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, | |
3542 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, | |
3543 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, | |
3544 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, | |
3545 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, | |
3546 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, | |
3547 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, | |
3548 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, | |
3549 | { "coalesced", BFD_MACH_O_S_COALESCED}, | |
3550 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, | |
3551 | { "interposing", BFD_MACH_O_S_INTERPOSING}, | |
3552 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, | |
3553 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, | |
a4551119 | 3554 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
046b007d TG |
3555 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
3556 | { NULL, 0} | |
3557 | }; | |
3558 | ||
c5012cd8 | 3559 | const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
046b007d TG |
3560 | { |
3561 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, | |
3562 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, | |
3563 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, | |
3564 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, | |
3565 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, | |
3566 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, | |
3567 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, | |
3568 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, | |
3569 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, | |
3570 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, | |
a4551119 | 3571 | { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
046b007d TG |
3572 | { NULL, 0} |
3573 | }; | |
3574 | ||
a4551119 | 3575 | /* Get the section type from NAME. Return 256 if NAME is unknown. */ |
53d58d96 TG |
3576 | |
3577 | unsigned int | |
3578 | bfd_mach_o_get_section_type_from_name (const char *name) | |
3579 | { | |
afbb9e17 | 3580 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
3581 | |
3582 | for (x = bfd_mach_o_section_type_name; x->name; x++) | |
3583 | if (strcmp (x->name, name) == 0) | |
3584 | return x->val; | |
a4551119 TG |
3585 | /* Maximum section ID = 0xff. */ |
3586 | return 256; | |
53d58d96 TG |
3587 | } |
3588 | ||
3589 | /* Get the section attribute from NAME. Return -1 if NAME is unknown. */ | |
3590 | ||
3591 | unsigned int | |
3592 | bfd_mach_o_get_section_attribute_from_name (const char *name) | |
3593 | { | |
afbb9e17 | 3594 | const bfd_mach_o_xlat_name *x; |
53d58d96 TG |
3595 | |
3596 | for (x = bfd_mach_o_section_attribute_name; x->name; x++) | |
3597 | if (strcmp (x->name, name) == 0) | |
3598 | return x->val; | |
3599 | return (unsigned int)-1; | |
3600 | } | |
3601 | ||
3af9a47b | 3602 | int |
116c20d2 NC |
3603 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
3604 | unsigned char **rbuf, | |
3605 | unsigned int *rlen) | |
3af9a47b | 3606 | { |
046b007d | 3607 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
3af9a47b NC |
3608 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
3609 | unsigned int i = 0; | |
3610 | ||
3611 | for (i = 0; i < mdata->header.ncmds; i++) | |
3612 | { | |
3613 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
3614 | bfd_mach_o_segment_command *seg = NULL; | |
3615 | ||
3616 | if (cur->type != BFD_MACH_O_LC_SEGMENT) | |
3617 | continue; | |
3618 | ||
3619 | seg = &cur->command.segment; | |
3620 | ||
3621 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
3622 | { | |
3623 | unsigned long start = seg->fileoff; | |
3624 | unsigned long end = seg->fileoff + seg->filesize; | |
3625 | unsigned char *buf = bfd_malloc (1024); | |
3626 | unsigned long size = 1024; | |
3627 | ||
3628 | for (;;) | |
3629 | { | |
3630 | bfd_size_type nread = 0; | |
3631 | unsigned long offset; | |
3632 | int found_nonnull = 0; | |
3633 | ||
3634 | if (size > (end - start)) | |
3635 | size = (end - start); | |
3636 | ||
515ef31d NC |
3637 | buf = bfd_realloc_or_free (buf, size); |
3638 | if (buf == NULL) | |
3639 | return -1; | |
c2f09c75 TG |
3640 | |
3641 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) | |
3642 | { | |
3643 | free (buf); | |
3644 | return -1; | |
3645 | } | |
3646 | ||
3af9a47b | 3647 | nread = bfd_bread (buf, size, abfd); |
a95a4550 | 3648 | |
3af9a47b | 3649 | if (nread != size) |
515ef31d NC |
3650 | { |
3651 | free (buf); | |
3652 | return -1; | |
3653 | } | |
a95a4550 | 3654 | |
3af9a47b NC |
3655 | for (offset = 4; offset <= size; offset += 4) |
3656 | { | |
e84d6fca | 3657 | unsigned long val; |
3af9a47b | 3658 | |
e84d6fca | 3659 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
3660 | if (! found_nonnull) |
3661 | { | |
3662 | if (val != 0) | |
3663 | found_nonnull = 1; | |
3664 | } | |
3665 | else if (val == 0x0) | |
3666 | { | |
e84d6fca AM |
3667 | unsigned long bottom; |
3668 | unsigned long top; | |
3af9a47b | 3669 | |
e84d6fca AM |
3670 | bottom = seg->fileoff + seg->filesize - offset; |
3671 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
3672 | *rbuf = bfd_malloc (top - bottom); |
3673 | *rlen = top - bottom; | |
3674 | ||
3675 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
515ef31d | 3676 | free (buf); |
3af9a47b NC |
3677 | return 0; |
3678 | } | |
3679 | } | |
3680 | ||
3681 | if (size == (end - start)) | |
3682 | break; | |
3683 | ||
3684 | size *= 2; | |
3685 | } | |
515ef31d NC |
3686 | |
3687 | free (buf); | |
3af9a47b NC |
3688 | } |
3689 | } | |
3690 | ||
3691 | return -1; | |
3692 | } | |
3693 | ||
3694 | char * | |
116c20d2 | 3695 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
3696 | { |
3697 | unsigned char *buf = NULL; | |
3698 | unsigned int len = 0; | |
3699 | int ret = -1; | |
3700 | ||
3701 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
3702 | if (ret < 0) | |
3703 | return NULL; | |
3704 | ||
f075ee0c | 3705 | return (char *) buf; |
3af9a47b NC |
3706 | } |
3707 | ||
3708 | int | |
116c20d2 | 3709 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
3710 | { |
3711 | return 0; | |
3712 | } | |
3713 | ||
d9071b0c TG |
3714 | bfd_boolean |
3715 | bfd_mach_o_find_nearest_line (bfd *abfd, | |
3716 | asection *section, | |
3717 | asymbol **symbols, | |
3718 | bfd_vma offset, | |
3719 | const char **filename_ptr, | |
3720 | const char **functionname_ptr, | |
3721 | unsigned int *line_ptr) | |
3722 | { | |
3723 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
3724 | /* TODO: Handle executables and dylibs by using dSYMs. */ | |
3725 | if (mdata->header.filetype != BFD_MACH_O_MH_OBJECT) | |
3726 | return FALSE; | |
3727 | if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections, | |
3728 | section, symbols, offset, | |
3729 | filename_ptr, functionname_ptr, | |
3730 | line_ptr, 0, | |
3731 | &mdata->dwarf2_find_line_info)) | |
3732 | return TRUE; | |
3733 | return FALSE; | |
3734 | } | |
3735 | ||
3736 | bfd_boolean | |
3737 | bfd_mach_o_close_and_cleanup (bfd *abfd) | |
3738 | { | |
3739 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); | |
3740 | if (bfd_get_format (abfd) == bfd_object && mdata != NULL) | |
3741 | _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info); | |
3742 | ||
3743 | return _bfd_generic_close_and_cleanup (abfd); | |
3744 | } | |
3745 | ||
92bc0e80 TG |
3746 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
3747 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup | |
3748 | ||
3749 | #define bfd_mach_o_swap_reloc_in NULL | |
3750 | #define bfd_mach_o_swap_reloc_out NULL | |
b32e07d7 | 3751 | #define bfd_mach_o_print_thread NULL |
a4551119 | 3752 | #define bfd_mach_o_tgt_seg_table NULL |
92bc0e80 | 3753 | |
116c20d2 NC |
3754 | #define TARGET_NAME mach_o_be_vec |
3755 | #define TARGET_STRING "mach-o-be" | |
42fa0891 | 3756 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
3757 | #define TARGET_BIG_ENDIAN 1 |
3758 | #define TARGET_ARCHIVE 0 | |
3af9a47b NC |
3759 | #include "mach-o-target.c" |
3760 | ||
3761 | #undef TARGET_NAME | |
3762 | #undef TARGET_STRING | |
42fa0891 | 3763 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
3764 | #undef TARGET_BIG_ENDIAN |
3765 | #undef TARGET_ARCHIVE | |
3766 | ||
116c20d2 NC |
3767 | #define TARGET_NAME mach_o_le_vec |
3768 | #define TARGET_STRING "mach-o-le" | |
42fa0891 | 3769 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
3770 | #define TARGET_BIG_ENDIAN 0 |
3771 | #define TARGET_ARCHIVE 0 | |
3af9a47b NC |
3772 | |
3773 | #include "mach-o-target.c" | |
3774 | ||
3775 | #undef TARGET_NAME | |
3776 | #undef TARGET_STRING | |
42fa0891 | 3777 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
3778 | #undef TARGET_BIG_ENDIAN |
3779 | #undef TARGET_ARCHIVE | |
3780 | ||
8f95b6e4 TG |
3781 | /* Not yet handled: creating an archive. */ |
3782 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive | |
3783 | ||
3784 | /* Not used. */ | |
3785 | #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr | |
3786 | #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr | |
3787 | #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap | |
3788 | #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table | |
3789 | #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table | |
3790 | #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname | |
3791 | #define bfd_mach_o_write_armap _bfd_noarchive_write_armap | |
3792 | #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index | |
3793 | #define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt | |
3794 | #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp | |
3795 | ||
116c20d2 NC |
3796 | #define TARGET_NAME mach_o_fat_vec |
3797 | #define TARGET_STRING "mach-o-fat" | |
42fa0891 | 3798 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
116c20d2 NC |
3799 | #define TARGET_BIG_ENDIAN 1 |
3800 | #define TARGET_ARCHIVE 1 | |
3af9a47b NC |
3801 | |
3802 | #include "mach-o-target.c" | |
3803 | ||
3804 | #undef TARGET_NAME | |
3805 | #undef TARGET_STRING | |
42fa0891 | 3806 | #undef TARGET_ARCHITECTURE |
3af9a47b NC |
3807 | #undef TARGET_BIG_ENDIAN |
3808 | #undef TARGET_ARCHIVE |