Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* COFF specific linker code. |
eea6121a | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
7686d77d | 3 | 2004, 2005, 2006, 2007, 2008, 2009, 2011 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | ||
8b956130 | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
8b956130 NC |
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 |
8b956130 | 11 | (at your option) any later version. |
252b5132 | 12 | |
8b956130 NC |
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. | |
252b5132 | 17 | |
8b956130 NC |
18 | You should have received a copy of the GNU General Public License |
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. */ | |
252b5132 RH |
22 | |
23 | /* This file contains the COFF backend linker code. */ | |
24 | ||
252b5132 | 25 | #include "sysdep.h" |
3db64b00 | 26 | #include "bfd.h" |
252b5132 RH |
27 | #include "bfdlink.h" |
28 | #include "libbfd.h" | |
29 | #include "coff/internal.h" | |
30 | #include "libcoff.h" | |
a3aa4448 | 31 | #include "safe-ctype.h" |
252b5132 | 32 | |
8b956130 NC |
33 | static bfd_boolean coff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info); |
34 | static bfd_boolean coff_link_check_archive_element (bfd *abfd, struct bfd_link_info *info, bfd_boolean *pneeded); | |
35 | static bfd_boolean coff_link_add_symbols (bfd *abfd, struct bfd_link_info *info); | |
252b5132 | 36 | |
b34976b6 | 37 | /* Return TRUE if SYM is a weak, external symbol. */ |
e4202681 NC |
38 | #define IS_WEAK_EXTERNAL(abfd, sym) \ |
39 | ((sym).n_sclass == C_WEAKEXT \ | |
40 | || (obj_pe (abfd) && (sym).n_sclass == C_NT_WEAK)) | |
41 | ||
b34976b6 | 42 | /* Return TRUE if SYM is an external symbol. */ |
e4202681 NC |
43 | #define IS_EXTERNAL(abfd, sym) \ |
44 | ((sym).n_sclass == C_EXT || IS_WEAK_EXTERNAL (abfd, sym)) | |
45 | ||
b2d638c7 ILT |
46 | /* Define macros so that the ISFCN, et. al., macros work correctly. |
47 | These macros are defined in include/coff/internal.h in terms of | |
48 | N_TMASK, etc. These definitions require a user to define local | |
49 | variables with the appropriate names, and with values from the | |
50 | coff_data (abfd) structure. */ | |
51 | ||
52 | #define N_TMASK n_tmask | |
53 | #define N_BTSHFT n_btshft | |
54 | #define N_BTMASK n_btmask | |
55 | ||
252b5132 RH |
56 | /* Create an entry in a COFF linker hash table. */ |
57 | ||
58 | struct bfd_hash_entry * | |
8b956130 NC |
59 | _bfd_coff_link_hash_newfunc (struct bfd_hash_entry *entry, |
60 | struct bfd_hash_table *table, | |
61 | const char *string) | |
252b5132 RH |
62 | { |
63 | struct coff_link_hash_entry *ret = (struct coff_link_hash_entry *) entry; | |
64 | ||
65 | /* Allocate the structure if it has not already been allocated by a | |
66 | subclass. */ | |
67 | if (ret == (struct coff_link_hash_entry *) NULL) | |
68 | ret = ((struct coff_link_hash_entry *) | |
69 | bfd_hash_allocate (table, sizeof (struct coff_link_hash_entry))); | |
70 | if (ret == (struct coff_link_hash_entry *) NULL) | |
71 | return (struct bfd_hash_entry *) ret; | |
72 | ||
73 | /* Call the allocation method of the superclass. */ | |
74 | ret = ((struct coff_link_hash_entry *) | |
75 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
76 | table, string)); | |
77 | if (ret != (struct coff_link_hash_entry *) NULL) | |
78 | { | |
79 | /* Set local fields. */ | |
80 | ret->indx = -1; | |
81 | ret->type = T_NULL; | |
96d56e9f | 82 | ret->symbol_class = C_NULL; |
252b5132 RH |
83 | ret->numaux = 0; |
84 | ret->auxbfd = NULL; | |
85 | ret->aux = NULL; | |
86 | } | |
87 | ||
88 | return (struct bfd_hash_entry *) ret; | |
89 | } | |
90 | ||
91 | /* Initialize a COFF linker hash table. */ | |
92 | ||
b34976b6 | 93 | bfd_boolean |
8b956130 NC |
94 | _bfd_coff_link_hash_table_init (struct coff_link_hash_table *table, |
95 | bfd *abfd, | |
96 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |
97 | struct bfd_hash_table *, | |
66eb6687 AM |
98 | const char *), |
99 | unsigned int entsize) | |
252b5132 | 100 | { |
3722b82f | 101 | memset (&table->stab_info, 0, sizeof (table->stab_info)); |
66eb6687 | 102 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize); |
252b5132 RH |
103 | } |
104 | ||
105 | /* Create a COFF linker hash table. */ | |
106 | ||
107 | struct bfd_link_hash_table * | |
8b956130 | 108 | _bfd_coff_link_hash_table_create (bfd *abfd) |
252b5132 RH |
109 | { |
110 | struct coff_link_hash_table *ret; | |
dc810e39 | 111 | bfd_size_type amt = sizeof (struct coff_link_hash_table); |
252b5132 | 112 | |
a50b1753 | 113 | ret = (struct coff_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
114 | if (ret == NULL) |
115 | return NULL; | |
8b956130 | 116 | |
252b5132 | 117 | if (! _bfd_coff_link_hash_table_init (ret, abfd, |
66eb6687 AM |
118 | _bfd_coff_link_hash_newfunc, |
119 | sizeof (struct coff_link_hash_entry))) | |
252b5132 | 120 | { |
e2d34d7d | 121 | free (ret); |
252b5132 RH |
122 | return (struct bfd_link_hash_table *) NULL; |
123 | } | |
124 | return &ret->root; | |
125 | } | |
126 | ||
127 | /* Create an entry in a COFF debug merge hash table. */ | |
128 | ||
129 | struct bfd_hash_entry * | |
8b956130 NC |
130 | _bfd_coff_debug_merge_hash_newfunc (struct bfd_hash_entry *entry, |
131 | struct bfd_hash_table *table, | |
132 | const char *string) | |
252b5132 RH |
133 | { |
134 | struct coff_debug_merge_hash_entry *ret = | |
135 | (struct coff_debug_merge_hash_entry *) entry; | |
136 | ||
137 | /* Allocate the structure if it has not already been allocated by a | |
138 | subclass. */ | |
139 | if (ret == (struct coff_debug_merge_hash_entry *) NULL) | |
140 | ret = ((struct coff_debug_merge_hash_entry *) | |
141 | bfd_hash_allocate (table, | |
142 | sizeof (struct coff_debug_merge_hash_entry))); | |
143 | if (ret == (struct coff_debug_merge_hash_entry *) NULL) | |
144 | return (struct bfd_hash_entry *) ret; | |
145 | ||
146 | /* Call the allocation method of the superclass. */ | |
147 | ret = ((struct coff_debug_merge_hash_entry *) | |
148 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
149 | if (ret != (struct coff_debug_merge_hash_entry *) NULL) | |
150 | { | |
151 | /* Set local fields. */ | |
152 | ret->types = NULL; | |
153 | } | |
154 | ||
155 | return (struct bfd_hash_entry *) ret; | |
156 | } | |
157 | ||
158 | /* Given a COFF BFD, add symbols to the global hash table as | |
159 | appropriate. */ | |
160 | ||
b34976b6 | 161 | bfd_boolean |
8b956130 | 162 | _bfd_coff_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
163 | { |
164 | switch (bfd_get_format (abfd)) | |
165 | { | |
166 | case bfd_object: | |
167 | return coff_link_add_object_symbols (abfd, info); | |
168 | case bfd_archive: | |
8b956130 NC |
169 | return _bfd_generic_link_add_archive_symbols |
170 | (abfd, info, coff_link_check_archive_element); | |
252b5132 RH |
171 | default: |
172 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 173 | return FALSE; |
252b5132 RH |
174 | } |
175 | } | |
176 | ||
177 | /* Add symbols from a COFF object file. */ | |
178 | ||
b34976b6 | 179 | static bfd_boolean |
8b956130 | 180 | coff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
181 | { |
182 | if (! _bfd_coff_get_external_symbols (abfd)) | |
b34976b6 | 183 | return FALSE; |
252b5132 | 184 | if (! coff_link_add_symbols (abfd, info)) |
b34976b6 | 185 | return FALSE; |
252b5132 | 186 | |
8b956130 NC |
187 | if (! info->keep_memory |
188 | && ! _bfd_coff_free_symbols (abfd)) | |
b34976b6 | 189 | return FALSE; |
252b5132 | 190 | |
b34976b6 | 191 | return TRUE; |
252b5132 RH |
192 | } |
193 | ||
194 | /* Look through the symbols to see if this object file should be | |
195 | included in the link. */ | |
196 | ||
b34976b6 | 197 | static bfd_boolean |
8b956130 NC |
198 | coff_link_check_ar_symbols (bfd *abfd, |
199 | struct bfd_link_info *info, | |
5d3236ee DK |
200 | bfd_boolean *pneeded, |
201 | bfd **subsbfd) | |
252b5132 | 202 | { |
252b5132 RH |
203 | bfd_size_type symesz; |
204 | bfd_byte *esym; | |
205 | bfd_byte *esym_end; | |
206 | ||
b34976b6 | 207 | *pneeded = FALSE; |
252b5132 | 208 | |
252b5132 RH |
209 | symesz = bfd_coff_symesz (abfd); |
210 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
211 | esym_end = esym + obj_raw_syment_count (abfd) * symesz; | |
212 | while (esym < esym_end) | |
213 | { | |
214 | struct internal_syment sym; | |
5d54c628 | 215 | enum coff_symbol_classification classification; |
252b5132 | 216 | |
8b956130 | 217 | bfd_coff_swap_sym_in (abfd, esym, &sym); |
252b5132 | 218 | |
5d54c628 ILT |
219 | classification = bfd_coff_classify_symbol (abfd, &sym); |
220 | if (classification == COFF_SYMBOL_GLOBAL | |
221 | || classification == COFF_SYMBOL_COMMON) | |
252b5132 RH |
222 | { |
223 | const char *name; | |
224 | char buf[SYMNMLEN + 1]; | |
225 | struct bfd_link_hash_entry *h; | |
226 | ||
227 | /* This symbol is externally visible, and is defined by this | |
228 | object file. */ | |
252b5132 RH |
229 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); |
230 | if (name == NULL) | |
b34976b6 AM |
231 | return FALSE; |
232 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); | |
252b5132 | 233 | |
8b956130 NC |
234 | /* Auto import. */ |
235 | if (!h | |
236 | && info->pei386_auto_import | |
0112cd26 | 237 | && CONST_STRNEQ (name, "__imp_")) |
8b956130 NC |
238 | h = bfd_link_hash_lookup (info->hash, name + 6, FALSE, FALSE, TRUE); |
239 | ||
252b5132 RH |
240 | /* We are only interested in symbols that are currently |
241 | undefined. If a symbol is currently known to be common, | |
242 | COFF linkers do not bring in an object file which defines | |
243 | it. */ | |
244 | if (h != (struct bfd_link_hash_entry *) NULL | |
245 | && h->type == bfd_link_hash_undefined) | |
246 | { | |
0e144ba7 AM |
247 | if (!(*info->callbacks |
248 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b34976b6 AM |
249 | return FALSE; |
250 | *pneeded = TRUE; | |
251 | return TRUE; | |
252b5132 RH |
252 | } |
253 | } | |
254 | ||
255 | esym += (sym.n_numaux + 1) * symesz; | |
256 | } | |
257 | ||
258 | /* We do not need this object file. */ | |
b34976b6 | 259 | return TRUE; |
252b5132 RH |
260 | } |
261 | ||
8b956130 NC |
262 | /* Check a single archive element to see if we need to include it in |
263 | the link. *PNEEDED is set according to whether this element is | |
264 | needed in the link or not. This is called via | |
265 | _bfd_generic_link_add_archive_symbols. */ | |
266 | ||
267 | static bfd_boolean | |
268 | coff_link_check_archive_element (bfd *abfd, | |
269 | struct bfd_link_info *info, | |
270 | bfd_boolean *pneeded) | |
271 | { | |
0e144ba7 AM |
272 | bfd *oldbfd; |
273 | bfd_boolean needed; | |
5d3236ee | 274 | |
0e144ba7 | 275 | if (!_bfd_coff_get_external_symbols (abfd)) |
8b956130 NC |
276 | return FALSE; |
277 | ||
0e144ba7 AM |
278 | oldbfd = abfd; |
279 | if (!coff_link_check_ar_symbols (abfd, info, pneeded, &abfd)) | |
8b956130 NC |
280 | return FALSE; |
281 | ||
0e144ba7 AM |
282 | needed = *pneeded; |
283 | if (needed) | |
284 | { | |
285 | /* Potentially, the add_archive_element hook may have set a | |
286 | substitute BFD for us. */ | |
287 | if (abfd != oldbfd) | |
288 | { | |
289 | if (!info->keep_memory | |
290 | && !_bfd_coff_free_symbols (oldbfd)) | |
291 | return FALSE; | |
292 | if (!_bfd_coff_get_external_symbols (abfd)) | |
293 | return FALSE; | |
294 | } | |
295 | if (!coff_link_add_symbols (abfd, info)) | |
296 | return FALSE; | |
297 | } | |
8b956130 | 298 | |
0e144ba7 AM |
299 | if (!info->keep_memory || !needed) |
300 | { | |
301 | if (!_bfd_coff_free_symbols (abfd)) | |
302 | return FALSE; | |
303 | } | |
8b956130 NC |
304 | return TRUE; |
305 | } | |
306 | ||
252b5132 RH |
307 | /* Add all the symbols from an object file to the hash table. */ |
308 | ||
b34976b6 | 309 | static bfd_boolean |
8b956130 NC |
310 | coff_link_add_symbols (bfd *abfd, |
311 | struct bfd_link_info *info) | |
252b5132 | 312 | { |
b2d638c7 ILT |
313 | unsigned int n_tmask = coff_data (abfd)->local_n_tmask; |
314 | unsigned int n_btshft = coff_data (abfd)->local_n_btshft; | |
315 | unsigned int n_btmask = coff_data (abfd)->local_n_btmask; | |
b34976b6 AM |
316 | bfd_boolean keep_syms; |
317 | bfd_boolean default_copy; | |
252b5132 RH |
318 | bfd_size_type symcount; |
319 | struct coff_link_hash_entry **sym_hash; | |
320 | bfd_size_type symesz; | |
321 | bfd_byte *esym; | |
322 | bfd_byte *esym_end; | |
dc810e39 | 323 | bfd_size_type amt; |
252b5132 | 324 | |
d63388ff MS |
325 | symcount = obj_raw_syment_count (abfd); |
326 | ||
327 | if (symcount == 0) | |
328 | return TRUE; /* Nothing to do. */ | |
329 | ||
252b5132 RH |
330 | /* Keep the symbols during this function, in case the linker needs |
331 | to read the generic symbols in order to report an error message. */ | |
332 | keep_syms = obj_coff_keep_syms (abfd); | |
b34976b6 | 333 | obj_coff_keep_syms (abfd) = TRUE; |
252b5132 | 334 | |
252b5132 | 335 | if (info->keep_memory) |
b34976b6 | 336 | default_copy = FALSE; |
252b5132 | 337 | else |
b34976b6 | 338 | default_copy = TRUE; |
252b5132 | 339 | |
252b5132 RH |
340 | /* We keep a list of the linker hash table entries that correspond |
341 | to particular symbols. */ | |
dc810e39 | 342 | amt = symcount * sizeof (struct coff_link_hash_entry *); |
a50b1753 | 343 | sym_hash = (struct coff_link_hash_entry **) bfd_zalloc (abfd, amt); |
d63388ff | 344 | if (sym_hash == NULL) |
252b5132 RH |
345 | goto error_return; |
346 | obj_coff_sym_hashes (abfd) = sym_hash; | |
252b5132 RH |
347 | |
348 | symesz = bfd_coff_symesz (abfd); | |
349 | BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)); | |
350 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
351 | esym_end = esym + symcount * symesz; | |
352 | while (esym < esym_end) | |
353 | { | |
354 | struct internal_syment sym; | |
5d54c628 | 355 | enum coff_symbol_classification classification; |
b34976b6 | 356 | bfd_boolean copy; |
252b5132 | 357 | |
8b956130 | 358 | bfd_coff_swap_sym_in (abfd, esym, &sym); |
252b5132 | 359 | |
5d54c628 ILT |
360 | classification = bfd_coff_classify_symbol (abfd, &sym); |
361 | if (classification != COFF_SYMBOL_LOCAL) | |
252b5132 RH |
362 | { |
363 | const char *name; | |
364 | char buf[SYMNMLEN + 1]; | |
365 | flagword flags; | |
366 | asection *section; | |
367 | bfd_vma value; | |
b34976b6 | 368 | bfd_boolean addit; |
252b5132 RH |
369 | |
370 | /* This symbol is externally visible. */ | |
371 | ||
372 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); | |
373 | if (name == NULL) | |
374 | goto error_return; | |
375 | ||
376 | /* We must copy the name into memory if we got it from the | |
377 | syment itself, rather than the string table. */ | |
378 | copy = default_copy; | |
379 | if (sym._n._n_n._n_zeroes != 0 | |
380 | || sym._n._n_n._n_offset == 0) | |
b34976b6 | 381 | copy = TRUE; |
252b5132 RH |
382 | |
383 | value = sym.n_value; | |
384 | ||
5d54c628 | 385 | switch (classification) |
252b5132 | 386 | { |
5d54c628 ILT |
387 | default: |
388 | abort (); | |
389 | ||
390 | case COFF_SYMBOL_GLOBAL: | |
252b5132 RH |
391 | flags = BSF_EXPORT | BSF_GLOBAL; |
392 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
393 | if (! obj_pe (abfd)) | |
394 | value -= section->vma; | |
0c511000 AM |
395 | /* Treat a symbol from a discarded section as undefined. */ |
396 | if (bfd_is_abs_section (section) | |
397 | || !bfd_is_abs_section (section->output_section)) | |
398 | break; | |
399 | /* Fall thru */ | |
5d54c628 ILT |
400 | |
401 | case COFF_SYMBOL_UNDEFINED: | |
402 | flags = 0; | |
403 | section = bfd_und_section_ptr; | |
404 | break; | |
405 | ||
406 | case COFF_SYMBOL_COMMON: | |
407 | flags = BSF_GLOBAL; | |
408 | section = bfd_com_section_ptr; | |
409 | break; | |
410 | ||
411 | case COFF_SYMBOL_PE_SECTION: | |
412 | flags = BSF_SECTION_SYM | BSF_GLOBAL; | |
413 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
414 | break; | |
252b5132 RH |
415 | } |
416 | ||
e4202681 | 417 | if (IS_WEAK_EXTERNAL (abfd, sym)) |
252b5132 RH |
418 | flags = BSF_WEAK; |
419 | ||
b34976b6 | 420 | addit = TRUE; |
7fd9c191 ILT |
421 | |
422 | /* In the PE format, section symbols actually refer to the | |
423 | start of the output section. We handle them specially | |
424 | here. */ | |
425 | if (obj_pe (abfd) && (flags & BSF_SECTION_SYM) != 0) | |
426 | { | |
427 | *sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
b34976b6 | 428 | name, FALSE, copy, FALSE); |
7fd9c191 ILT |
429 | if (*sym_hash != NULL) |
430 | { | |
431 | if (((*sym_hash)->coff_link_hash_flags | |
432 | & COFF_LINK_HASH_PE_SECTION_SYMBOL) == 0 | |
433 | && (*sym_hash)->root.type != bfd_link_hash_undefined | |
434 | && (*sym_hash)->root.type != bfd_link_hash_undefweak) | |
435 | (*_bfd_error_handler) | |
436 | ("Warning: symbol `%s' is both section and non-section", | |
437 | name); | |
438 | ||
b34976b6 | 439 | addit = FALSE; |
7fd9c191 ILT |
440 | } |
441 | } | |
442 | ||
49147fca ILT |
443 | /* The Microsoft Visual C compiler does string pooling by |
444 | hashing the constants to an internal symbol name, and | |
08da05b0 | 445 | relying on the linker comdat support to discard |
49147fca ILT |
446 | duplicate names. However, if one string is a literal and |
447 | one is a data initializer, one will end up in the .data | |
448 | section and one will end up in the .rdata section. The | |
449 | Microsoft linker will combine them into the .data | |
450 | section, which seems to be wrong since it might cause the | |
451 | literal to change. | |
452 | ||
453 | As long as there are no external references to the | |
454 | symbols, which there shouldn't be, we can treat the .data | |
455 | and .rdata instances as separate symbols. The comdat | |
456 | code in the linker will do the appropriate merging. Here | |
457 | we avoid getting a multiple definition error for one of | |
458 | these special symbols. | |
459 | ||
460 | FIXME: I don't think this will work in the case where | |
461 | there are two object files which use the constants as a | |
462 | literal and two object files which use it as a data | |
463 | initializer. One or the other of the second object files | |
464 | is going to wind up with an inappropriate reference. */ | |
465 | if (obj_pe (abfd) | |
466 | && (classification == COFF_SYMBOL_GLOBAL | |
467 | || classification == COFF_SYMBOL_PE_SECTION) | |
271d0fc3 | 468 | && coff_section_data (abfd, section) != NULL |
082b7297 | 469 | && coff_section_data (abfd, section)->comdat != NULL |
0112cd26 | 470 | && CONST_STRNEQ (name, "??_") |
082b7297 | 471 | && strcmp (name, coff_section_data (abfd, section)->comdat->name) == 0) |
49147fca ILT |
472 | { |
473 | if (*sym_hash == NULL) | |
474 | *sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
b34976b6 | 475 | name, FALSE, copy, FALSE); |
49147fca ILT |
476 | if (*sym_hash != NULL |
477 | && (*sym_hash)->root.type == bfd_link_hash_defined | |
082b7297 L |
478 | && coff_section_data (abfd, (*sym_hash)->root.u.def.section)->comdat != NULL |
479 | && strcmp (coff_section_data (abfd, (*sym_hash)->root.u.def.section)->comdat->name, | |
480 | coff_section_data (abfd, section)->comdat->name) == 0) | |
b34976b6 | 481 | addit = FALSE; |
49147fca ILT |
482 | } |
483 | ||
7fd9c191 ILT |
484 | if (addit) |
485 | { | |
486 | if (! (bfd_coff_link_add_one_symbol | |
487 | (info, abfd, name, flags, section, value, | |
b34976b6 | 488 | (const char *) NULL, copy, FALSE, |
7fd9c191 ILT |
489 | (struct bfd_link_hash_entry **) sym_hash))) |
490 | goto error_return; | |
491 | } | |
492 | ||
493 | if (obj_pe (abfd) && (flags & BSF_SECTION_SYM) != 0) | |
494 | (*sym_hash)->coff_link_hash_flags |= | |
495 | COFF_LINK_HASH_PE_SECTION_SYMBOL; | |
252b5132 | 496 | |
2820a0b7 ILT |
497 | /* Limit the alignment of a common symbol to the possible |
498 | alignment of a section. There is no point to permitting | |
499 | a higher alignment for a common symbol: we can not | |
500 | guarantee it, and it may cause us to allocate extra space | |
501 | in the common section. */ | |
252b5132 RH |
502 | if (section == bfd_com_section_ptr |
503 | && (*sym_hash)->root.type == bfd_link_hash_common | |
504 | && ((*sym_hash)->root.u.c.p->alignment_power | |
505 | > bfd_coff_default_section_alignment_power (abfd))) | |
506 | (*sym_hash)->root.u.c.p->alignment_power | |
507 | = bfd_coff_default_section_alignment_power (abfd); | |
508 | ||
f13a99db | 509 | if (bfd_get_flavour (info->output_bfd) == bfd_get_flavour (abfd)) |
252b5132 | 510 | { |
5d3aaa74 ILT |
511 | /* If we don't have any symbol information currently in |
512 | the hash table, or if we are looking at a symbol | |
513 | definition, then update the symbol class and type in | |
514 | the hash table. */ | |
96d56e9f | 515 | if (((*sym_hash)->symbol_class == C_NULL |
5d3aaa74 ILT |
516 | && (*sym_hash)->type == T_NULL) |
517 | || sym.n_scnum != 0 | |
518 | || (sym.n_value != 0 | |
519 | && (*sym_hash)->root.type != bfd_link_hash_defined | |
520 | && (*sym_hash)->root.type != bfd_link_hash_defweak)) | |
521 | { | |
96d56e9f | 522 | (*sym_hash)->symbol_class = sym.n_sclass; |
5d3aaa74 ILT |
523 | if (sym.n_type != T_NULL) |
524 | { | |
525 | /* We want to warn if the type changed, but not | |
526 | if it changed from an unspecified type. | |
527 | Testing the whole type byte may work, but the | |
528 | change from (e.g.) a function of unspecified | |
529 | type to function of known type also wants to | |
530 | skip the warning. */ | |
531 | if ((*sym_hash)->type != T_NULL | |
532 | && (*sym_hash)->type != sym.n_type | |
533 | && !(DTYPE ((*sym_hash)->type) == DTYPE (sym.n_type) | |
534 | && (BTYPE ((*sym_hash)->type) == T_NULL | |
535 | || BTYPE (sym.n_type) == T_NULL))) | |
536 | (*_bfd_error_handler) | |
d003868e AM |
537 | (_("Warning: type of symbol `%s' changed from %d to %d in %B"), |
538 | abfd, name, (*sym_hash)->type, sym.n_type); | |
5d3aaa74 ILT |
539 | |
540 | /* We don't want to change from a meaningful | |
541 | base type to a null one, but if we know | |
542 | nothing, take what little we might now know. */ | |
543 | if (BTYPE (sym.n_type) != T_NULL | |
544 | || (*sym_hash)->type == T_NULL) | |
545 | (*sym_hash)->type = sym.n_type; | |
546 | } | |
547 | (*sym_hash)->auxbfd = abfd; | |
252b5132 RH |
548 | if (sym.n_numaux != 0) |
549 | { | |
550 | union internal_auxent *alloc; | |
551 | unsigned int i; | |
552 | bfd_byte *eaux; | |
553 | union internal_auxent *iaux; | |
554 | ||
555 | (*sym_hash)->numaux = sym.n_numaux; | |
556 | alloc = ((union internal_auxent *) | |
557 | bfd_hash_allocate (&info->hash->table, | |
558 | (sym.n_numaux | |
559 | * sizeof (*alloc)))); | |
560 | if (alloc == NULL) | |
561 | goto error_return; | |
562 | for (i = 0, eaux = esym + symesz, iaux = alloc; | |
563 | i < sym.n_numaux; | |
564 | i++, eaux += symesz, iaux++) | |
8b956130 | 565 | bfd_coff_swap_aux_in (abfd, eaux, sym.n_type, |
dc810e39 | 566 | sym.n_sclass, (int) i, |
8b956130 | 567 | sym.n_numaux, iaux); |
252b5132 RH |
568 | (*sym_hash)->aux = alloc; |
569 | } | |
570 | } | |
571 | } | |
5d54c628 ILT |
572 | |
573 | if (classification == COFF_SYMBOL_PE_SECTION | |
574 | && (*sym_hash)->numaux != 0) | |
575 | { | |
576 | /* Some PE sections (such as .bss) have a zero size in | |
577 | the section header, but a non-zero size in the AUX | |
578 | record. Correct that here. | |
579 | ||
580 | FIXME: This is not at all the right place to do this. | |
581 | For example, it won't help objdump. This needs to be | |
582 | done when we swap in the section header. */ | |
5d54c628 | 583 | BFD_ASSERT ((*sym_hash)->numaux == 1); |
eea6121a AM |
584 | if (section->size == 0) |
585 | section->size = (*sym_hash)->aux[0].x_scn.x_scnlen; | |
5d54c628 ILT |
586 | |
587 | /* FIXME: We could test whether the section sizes | |
588 | matches the size in the aux entry, but apparently | |
589 | that sometimes fails unexpectedly. */ | |
590 | } | |
252b5132 RH |
591 | } |
592 | ||
593 | esym += (sym.n_numaux + 1) * symesz; | |
594 | sym_hash += sym.n_numaux + 1; | |
595 | } | |
596 | ||
1049f94e | 597 | /* If this is a non-traditional, non-relocatable link, try to |
252b5132 | 598 | optimize the handling of any .stab/.stabstr sections. */ |
1049f94e | 599 | if (! info->relocatable |
252b5132 | 600 | && ! info->traditional_format |
f13a99db | 601 | && bfd_get_flavour (info->output_bfd) == bfd_get_flavour (abfd) |
252b5132 RH |
602 | && (info->strip != strip_all && info->strip != strip_debugger)) |
603 | { | |
29ca8dc5 | 604 | asection *stabstr; |
252b5132 | 605 | |
29ca8dc5 | 606 | stabstr = bfd_get_section_by_name (abfd, ".stabstr"); |
252b5132 | 607 | |
29ca8dc5 NS |
608 | if (stabstr != NULL) |
609 | { | |
610 | bfd_size_type string_offset = 0; | |
611 | asection *stab; | |
612 | ||
613 | for (stab = abfd->sections; stab; stab = stab->next) | |
faa40977 | 614 | if (CONST_STRNEQ (stab->name, ".stab") |
29ca8dc5 | 615 | && (!stab->name[5] |
a3aa4448 | 616 | || (stab->name[5] == '.' && ISDIGIT (stab->name[6])))) |
252b5132 RH |
617 | { |
618 | struct coff_link_hash_table *table; | |
29ca8dc5 NS |
619 | struct coff_section_tdata *secdata |
620 | = coff_section_data (abfd, stab); | |
621 | ||
252b5132 RH |
622 | if (secdata == NULL) |
623 | { | |
dc810e39 | 624 | amt = sizeof (struct coff_section_tdata); |
8b956130 | 625 | stab->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
626 | if (stab->used_by_bfd == NULL) |
627 | goto error_return; | |
628 | secdata = coff_section_data (abfd, stab); | |
629 | } | |
630 | ||
631 | table = coff_hash_table (info); | |
632 | ||
633 | if (! _bfd_link_section_stabs (abfd, &table->stab_info, | |
634 | stab, stabstr, | |
29ca8dc5 NS |
635 | &secdata->stab_info, |
636 | &string_offset)) | |
252b5132 RH |
637 | goto error_return; |
638 | } | |
639 | } | |
640 | } | |
641 | ||
642 | obj_coff_keep_syms (abfd) = keep_syms; | |
643 | ||
b34976b6 | 644 | return TRUE; |
252b5132 RH |
645 | |
646 | error_return: | |
647 | obj_coff_keep_syms (abfd) = keep_syms; | |
b34976b6 | 648 | return FALSE; |
252b5132 RH |
649 | } |
650 | \f | |
651 | /* Do the final link step. */ | |
652 | ||
b34976b6 | 653 | bfd_boolean |
8b956130 NC |
654 | _bfd_coff_final_link (bfd *abfd, |
655 | struct bfd_link_info *info) | |
252b5132 RH |
656 | { |
657 | bfd_size_type symesz; | |
658 | struct coff_final_link_info finfo; | |
b34976b6 AM |
659 | bfd_boolean debug_merge_allocated; |
660 | bfd_boolean long_section_names; | |
252b5132 RH |
661 | asection *o; |
662 | struct bfd_link_order *p; | |
dc810e39 AM |
663 | bfd_size_type max_sym_count; |
664 | bfd_size_type max_lineno_count; | |
665 | bfd_size_type max_reloc_count; | |
666 | bfd_size_type max_output_reloc_count; | |
667 | bfd_size_type max_contents_size; | |
252b5132 RH |
668 | file_ptr rel_filepos; |
669 | unsigned int relsz; | |
670 | file_ptr line_filepos; | |
671 | unsigned int linesz; | |
672 | bfd *sub; | |
673 | bfd_byte *external_relocs = NULL; | |
674 | char strbuf[STRING_SIZE_SIZE]; | |
dc810e39 | 675 | bfd_size_type amt; |
252b5132 RH |
676 | |
677 | symesz = bfd_coff_symesz (abfd); | |
678 | ||
679 | finfo.info = info; | |
680 | finfo.output_bfd = abfd; | |
681 | finfo.strtab = NULL; | |
682 | finfo.section_info = NULL; | |
683 | finfo.last_file_index = -1; | |
684 | finfo.last_bf_index = -1; | |
685 | finfo.internal_syms = NULL; | |
686 | finfo.sec_ptrs = NULL; | |
687 | finfo.sym_indices = NULL; | |
688 | finfo.outsyms = NULL; | |
689 | finfo.linenos = NULL; | |
690 | finfo.contents = NULL; | |
691 | finfo.external_relocs = NULL; | |
692 | finfo.internal_relocs = NULL; | |
b34976b6 AM |
693 | finfo.global_to_static = FALSE; |
694 | debug_merge_allocated = FALSE; | |
252b5132 RH |
695 | |
696 | coff_data (abfd)->link_info = info; | |
697 | ||
698 | finfo.strtab = _bfd_stringtab_init (); | |
699 | if (finfo.strtab == NULL) | |
700 | goto error_return; | |
701 | ||
702 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)) | |
703 | goto error_return; | |
b34976b6 | 704 | debug_merge_allocated = TRUE; |
252b5132 RH |
705 | |
706 | /* Compute the file positions for all the sections. */ | |
707 | if (! abfd->output_has_begun) | |
708 | { | |
709 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
710 | goto error_return; | |
711 | } | |
712 | ||
713 | /* Count the line numbers and relocation entries required for the | |
714 | output file. Set the file positions for the relocs. */ | |
715 | rel_filepos = obj_relocbase (abfd); | |
716 | relsz = bfd_coff_relsz (abfd); | |
717 | max_contents_size = 0; | |
718 | max_lineno_count = 0; | |
719 | max_reloc_count = 0; | |
720 | ||
b34976b6 | 721 | long_section_names = FALSE; |
252b5132 RH |
722 | for (o = abfd->sections; o != NULL; o = o->next) |
723 | { | |
724 | o->reloc_count = 0; | |
725 | o->lineno_count = 0; | |
8423293d | 726 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
252b5132 RH |
727 | { |
728 | if (p->type == bfd_indirect_link_order) | |
729 | { | |
730 | asection *sec; | |
731 | ||
732 | sec = p->u.indirect.section; | |
733 | ||
734 | /* Mark all sections which are to be included in the | |
735 | link. This will normally be every section. We need | |
736 | to do this so that we can identify any sections which | |
737 | the linker has decided to not include. */ | |
b34976b6 | 738 | sec->linker_mark = TRUE; |
252b5132 RH |
739 | |
740 | if (info->strip == strip_none | |
741 | || info->strip == strip_some) | |
742 | o->lineno_count += sec->lineno_count; | |
743 | ||
1049f94e | 744 | if (info->relocatable) |
252b5132 RH |
745 | o->reloc_count += sec->reloc_count; |
746 | ||
eea6121a AM |
747 | if (sec->rawsize > max_contents_size) |
748 | max_contents_size = sec->rawsize; | |
749 | if (sec->size > max_contents_size) | |
750 | max_contents_size = sec->size; | |
252b5132 RH |
751 | if (sec->lineno_count > max_lineno_count) |
752 | max_lineno_count = sec->lineno_count; | |
753 | if (sec->reloc_count > max_reloc_count) | |
754 | max_reloc_count = sec->reloc_count; | |
755 | } | |
1049f94e | 756 | else if (info->relocatable |
252b5132 RH |
757 | && (p->type == bfd_section_reloc_link_order |
758 | || p->type == bfd_symbol_reloc_link_order)) | |
759 | ++o->reloc_count; | |
760 | } | |
761 | if (o->reloc_count == 0) | |
762 | o->rel_filepos = 0; | |
763 | else | |
764 | { | |
765 | o->flags |= SEC_RELOC; | |
766 | o->rel_filepos = rel_filepos; | |
767 | rel_filepos += o->reloc_count * relsz; | |
e9168c1e MM |
768 | /* In PE COFF, if there are at least 0xffff relocations an |
769 | extra relocation will be written out to encode the count. */ | |
770 | if (obj_pe (abfd) && o->reloc_count >= 0xffff) | |
771 | rel_filepos += relsz; | |
252b5132 RH |
772 | } |
773 | ||
774 | if (bfd_coff_long_section_names (abfd) | |
775 | && strlen (o->name) > SCNNMLEN) | |
776 | { | |
777 | /* This section has a long name which must go in the string | |
778 | table. This must correspond to the code in | |
779 | coff_write_object_contents which puts the string index | |
780 | into the s_name field of the section header. That is why | |
b34976b6 AM |
781 | we pass hash as FALSE. */ |
782 | if (_bfd_stringtab_add (finfo.strtab, o->name, FALSE, FALSE) | |
252b5132 RH |
783 | == (bfd_size_type) -1) |
784 | goto error_return; | |
b34976b6 | 785 | long_section_names = TRUE; |
252b5132 RH |
786 | } |
787 | } | |
788 | ||
1049f94e | 789 | /* If doing a relocatable link, allocate space for the pointers we |
252b5132 | 790 | need to keep. */ |
1049f94e | 791 | if (info->relocatable) |
252b5132 RH |
792 | { |
793 | unsigned int i; | |
794 | ||
795 | /* We use section_count + 1, rather than section_count, because | |
796 | the target_index fields are 1 based. */ | |
dc810e39 AM |
797 | amt = abfd->section_count + 1; |
798 | amt *= sizeof (struct coff_link_section_info); | |
a50b1753 | 799 | finfo.section_info = (struct coff_link_section_info *) bfd_malloc (amt); |
252b5132 RH |
800 | if (finfo.section_info == NULL) |
801 | goto error_return; | |
802 | for (i = 0; i <= abfd->section_count; i++) | |
803 | { | |
804 | finfo.section_info[i].relocs = NULL; | |
805 | finfo.section_info[i].rel_hashes = NULL; | |
806 | } | |
807 | } | |
808 | ||
809 | /* We now know the size of the relocs, so we can determine the file | |
810 | positions of the line numbers. */ | |
811 | line_filepos = rel_filepos; | |
812 | linesz = bfd_coff_linesz (abfd); | |
813 | max_output_reloc_count = 0; | |
814 | for (o = abfd->sections; o != NULL; o = o->next) | |
815 | { | |
816 | if (o->lineno_count == 0) | |
817 | o->line_filepos = 0; | |
818 | else | |
819 | { | |
820 | o->line_filepos = line_filepos; | |
821 | line_filepos += o->lineno_count * linesz; | |
822 | } | |
823 | ||
824 | if (o->reloc_count != 0) | |
825 | { | |
826 | /* We don't know the indices of global symbols until we have | |
827 | written out all the local symbols. For each section in | |
828 | the output file, we keep an array of pointers to hash | |
829 | table entries. Each entry in the array corresponds to a | |
830 | reloc. When we find a reloc against a global symbol, we | |
831 | set the corresponding entry in this array so that we can | |
832 | fix up the symbol index after we have written out all the | |
833 | local symbols. | |
834 | ||
835 | Because of this problem, we also keep the relocs in | |
836 | memory until the end of the link. This wastes memory, | |
1049f94e | 837 | but only when doing a relocatable link, which is not the |
252b5132 | 838 | common case. */ |
1049f94e | 839 | BFD_ASSERT (info->relocatable); |
dc810e39 AM |
840 | amt = o->reloc_count; |
841 | amt *= sizeof (struct internal_reloc); | |
a50b1753 NC |
842 | finfo.section_info[o->target_index].relocs = |
843 | (struct internal_reloc *) bfd_malloc (amt); | |
dc810e39 AM |
844 | amt = o->reloc_count; |
845 | amt *= sizeof (struct coff_link_hash_entry *); | |
a50b1753 NC |
846 | finfo.section_info[o->target_index].rel_hashes = |
847 | (struct coff_link_hash_entry **) bfd_malloc (amt); | |
252b5132 RH |
848 | if (finfo.section_info[o->target_index].relocs == NULL |
849 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
850 | goto error_return; | |
851 | ||
852 | if (o->reloc_count > max_output_reloc_count) | |
853 | max_output_reloc_count = o->reloc_count; | |
854 | } | |
855 | ||
856 | /* Reset the reloc and lineno counts, so that we can use them to | |
857 | count the number of entries we have output so far. */ | |
858 | o->reloc_count = 0; | |
859 | o->lineno_count = 0; | |
860 | } | |
861 | ||
862 | obj_sym_filepos (abfd) = line_filepos; | |
863 | ||
864 | /* Figure out the largest number of symbols in an input BFD. Take | |
865 | the opportunity to clear the output_has_begun fields of all the | |
866 | input BFD's. */ | |
867 | max_sym_count = 0; | |
868 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
869 | { | |
870 | size_t sz; | |
871 | ||
b34976b6 | 872 | sub->output_has_begun = FALSE; |
252b5132 RH |
873 | sz = obj_raw_syment_count (sub); |
874 | if (sz > max_sym_count) | |
875 | max_sym_count = sz; | |
876 | } | |
877 | ||
878 | /* Allocate some buffers used while linking. */ | |
dc810e39 | 879 | amt = max_sym_count * sizeof (struct internal_syment); |
a50b1753 | 880 | finfo.internal_syms = (struct internal_syment *) bfd_malloc (amt); |
dc810e39 | 881 | amt = max_sym_count * sizeof (asection *); |
a50b1753 | 882 | finfo.sec_ptrs = (asection **) bfd_malloc (amt); |
dc810e39 | 883 | amt = max_sym_count * sizeof (long); |
a50b1753 NC |
884 | finfo.sym_indices = (long int *) bfd_malloc (amt); |
885 | finfo.outsyms = (bfd_byte *) bfd_malloc ((max_sym_count + 1) * symesz); | |
dc810e39 | 886 | amt = max_lineno_count * bfd_coff_linesz (abfd); |
a50b1753 NC |
887 | finfo.linenos = (bfd_byte *) bfd_malloc (amt); |
888 | finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); | |
dc810e39 | 889 | amt = max_reloc_count * relsz; |
a50b1753 | 890 | finfo.external_relocs = (bfd_byte *) bfd_malloc (amt); |
1049f94e | 891 | if (! info->relocatable) |
dc810e39 AM |
892 | { |
893 | amt = max_reloc_count * sizeof (struct internal_reloc); | |
a50b1753 | 894 | finfo.internal_relocs = (struct internal_reloc *) bfd_malloc (amt); |
dc810e39 | 895 | } |
252b5132 RH |
896 | if ((finfo.internal_syms == NULL && max_sym_count > 0) |
897 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) | |
898 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
899 | || finfo.outsyms == NULL | |
900 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
901 | || (finfo.contents == NULL && max_contents_size > 0) | |
902 | || (finfo.external_relocs == NULL && max_reloc_count > 0) | |
1049f94e | 903 | || (! info->relocatable |
252b5132 RH |
904 | && finfo.internal_relocs == NULL |
905 | && max_reloc_count > 0)) | |
906 | goto error_return; | |
907 | ||
908 | /* We now know the position of everything in the file, except that | |
909 | we don't know the size of the symbol table and therefore we don't | |
910 | know where the string table starts. We just build the string | |
911 | table in memory as we go along. We process all the relocations | |
912 | for a single input file at once. */ | |
913 | obj_raw_syment_count (abfd) = 0; | |
914 | ||
915 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) | |
916 | { | |
917 | if (! bfd_coff_start_final_link (abfd, info)) | |
918 | goto error_return; | |
919 | } | |
920 | ||
921 | for (o = abfd->sections; o != NULL; o = o->next) | |
922 | { | |
8423293d | 923 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
252b5132 RH |
924 | { |
925 | if (p->type == bfd_indirect_link_order | |
9bd09e22 | 926 | && bfd_family_coff (p->u.indirect.section->owner)) |
252b5132 RH |
927 | { |
928 | sub = p->u.indirect.section->owner; | |
929 | if (! bfd_coff_link_output_has_begun (sub, & finfo)) | |
930 | { | |
931 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) | |
932 | goto error_return; | |
b34976b6 | 933 | sub->output_has_begun = TRUE; |
252b5132 RH |
934 | } |
935 | } | |
936 | else if (p->type == bfd_section_reloc_link_order | |
937 | || p->type == bfd_symbol_reloc_link_order) | |
938 | { | |
939 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) | |
940 | goto error_return; | |
941 | } | |
942 | else | |
943 | { | |
944 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
945 | goto error_return; | |
946 | } | |
947 | } | |
948 | } | |
949 | ||
950 | if (! bfd_coff_final_link_postscript (abfd, & finfo)) | |
951 | goto error_return; | |
244148ad | 952 | |
252b5132 RH |
953 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ |
954 | ||
955 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
b34976b6 | 956 | debug_merge_allocated = FALSE; |
252b5132 RH |
957 | |
958 | if (finfo.internal_syms != NULL) | |
959 | { | |
960 | free (finfo.internal_syms); | |
961 | finfo.internal_syms = NULL; | |
962 | } | |
963 | if (finfo.sec_ptrs != NULL) | |
964 | { | |
965 | free (finfo.sec_ptrs); | |
966 | finfo.sec_ptrs = NULL; | |
967 | } | |
968 | if (finfo.sym_indices != NULL) | |
969 | { | |
970 | free (finfo.sym_indices); | |
971 | finfo.sym_indices = NULL; | |
972 | } | |
973 | if (finfo.linenos != NULL) | |
974 | { | |
975 | free (finfo.linenos); | |
976 | finfo.linenos = NULL; | |
977 | } | |
978 | if (finfo.contents != NULL) | |
979 | { | |
980 | free (finfo.contents); | |
981 | finfo.contents = NULL; | |
982 | } | |
983 | if (finfo.external_relocs != NULL) | |
984 | { | |
985 | free (finfo.external_relocs); | |
986 | finfo.external_relocs = NULL; | |
987 | } | |
988 | if (finfo.internal_relocs != NULL) | |
989 | { | |
990 | free (finfo.internal_relocs); | |
991 | finfo.internal_relocs = NULL; | |
992 | } | |
993 | ||
994 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
995 | index of the first external symbol. Write it out again if | |
996 | necessary. */ | |
997 | if (finfo.last_file_index != -1 | |
998 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)) | |
999 | { | |
dc810e39 AM |
1000 | file_ptr pos; |
1001 | ||
252b5132 | 1002 | finfo.last_file.n_value = obj_raw_syment_count (abfd); |
8b956130 NC |
1003 | bfd_coff_swap_sym_out (abfd, &finfo.last_file, |
1004 | finfo.outsyms); | |
dc810e39 AM |
1005 | |
1006 | pos = obj_sym_filepos (abfd) + finfo.last_file_index * symesz; | |
1007 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
1008 | || bfd_bwrite (finfo.outsyms, symesz, abfd) != symesz) | |
b34976b6 | 1009 | return FALSE; |
252b5132 RH |
1010 | } |
1011 | ||
1012 | /* If doing task linking (ld --task-link) then make a pass through the | |
1013 | global symbols, writing out any that are defined, and making them | |
244148ad | 1014 | static. */ |
252b5132 RH |
1015 | if (info->task_link) |
1016 | { | |
b34976b6 | 1017 | finfo.failed = FALSE; |
e92d460e | 1018 | coff_link_hash_traverse (coff_hash_table (info), |
8b956130 | 1019 | _bfd_coff_write_task_globals, &finfo); |
252b5132 RH |
1020 | if (finfo.failed) |
1021 | goto error_return; | |
1022 | } | |
1023 | ||
1024 | /* Write out the global symbols. */ | |
b34976b6 | 1025 | finfo.failed = FALSE; |
7686d77d | 1026 | bfd_hash_traverse (&info->hash->table, _bfd_coff_write_global_sym, &finfo); |
252b5132 RH |
1027 | if (finfo.failed) |
1028 | goto error_return; | |
1029 | ||
1030 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ | |
1031 | if (finfo.outsyms != NULL) | |
1032 | { | |
1033 | free (finfo.outsyms); | |
1034 | finfo.outsyms = NULL; | |
1035 | } | |
1036 | ||
1049f94e | 1037 | if (info->relocatable && max_output_reloc_count > 0) |
252b5132 RH |
1038 | { |
1039 | /* Now that we have written out all the global symbols, we know | |
1040 | the symbol indices to use for relocs against them, and we can | |
1041 | finally write out the relocs. */ | |
dc810e39 | 1042 | amt = max_output_reloc_count * relsz; |
a50b1753 | 1043 | external_relocs = (bfd_byte *) bfd_malloc (amt); |
252b5132 RH |
1044 | if (external_relocs == NULL) |
1045 | goto error_return; | |
1046 | ||
1047 | for (o = abfd->sections; o != NULL; o = o->next) | |
1048 | { | |
1049 | struct internal_reloc *irel; | |
1050 | struct internal_reloc *irelend; | |
1051 | struct coff_link_hash_entry **rel_hash; | |
1052 | bfd_byte *erel; | |
1053 | ||
1054 | if (o->reloc_count == 0) | |
1055 | continue; | |
1056 | ||
1057 | irel = finfo.section_info[o->target_index].relocs; | |
1058 | irelend = irel + o->reloc_count; | |
1059 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
1060 | erel = external_relocs; | |
1061 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
1062 | { | |
1063 | if (*rel_hash != NULL) | |
1064 | { | |
1065 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
1066 | irel->r_symndx = (*rel_hash)->indx; | |
1067 | } | |
8b956130 | 1068 | bfd_coff_swap_reloc_out (abfd, irel, erel); |
252b5132 RH |
1069 | } |
1070 | ||
cd339148 NS |
1071 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0) |
1072 | goto error_return; | |
1073 | if (obj_pe (abfd) && o->reloc_count >= 0xffff) | |
1074 | { | |
1075 | /* In PE COFF, write the count of relocs as the first | |
1076 | reloc. The header overflow bit will be set | |
1077 | elsewhere. */ | |
1078 | struct internal_reloc incount; | |
1079 | bfd_byte *excount = (bfd_byte *)bfd_malloc (relsz); | |
1080 | ||
1081 | memset (&incount, 0, sizeof (incount)); | |
1082 | incount.r_vaddr = o->reloc_count + 1; | |
1083 | bfd_coff_swap_reloc_out (abfd, (PTR) &incount, (PTR) excount); | |
1084 | if (bfd_bwrite (excount, relsz, abfd) != relsz) | |
1085 | /* We'll leak, but it's an error anyway. */ | |
1086 | goto error_return; | |
1087 | free (excount); | |
1088 | } | |
1089 | if (bfd_bwrite (external_relocs, | |
1090 | (bfd_size_type) relsz * o->reloc_count, abfd) | |
1091 | != (bfd_size_type) relsz * o->reloc_count) | |
252b5132 RH |
1092 | goto error_return; |
1093 | } | |
1094 | ||
1095 | free (external_relocs); | |
1096 | external_relocs = NULL; | |
1097 | } | |
1098 | ||
1099 | /* Free up the section information. */ | |
1100 | if (finfo.section_info != NULL) | |
1101 | { | |
1102 | unsigned int i; | |
1103 | ||
1104 | for (i = 0; i < abfd->section_count; i++) | |
1105 | { | |
1106 | if (finfo.section_info[i].relocs != NULL) | |
1107 | free (finfo.section_info[i].relocs); | |
1108 | if (finfo.section_info[i].rel_hashes != NULL) | |
1109 | free (finfo.section_info[i].rel_hashes); | |
1110 | } | |
1111 | free (finfo.section_info); | |
1112 | finfo.section_info = NULL; | |
1113 | } | |
1114 | ||
1115 | /* If we have optimized stabs strings, output them. */ | |
3722b82f | 1116 | if (coff_hash_table (info)->stab_info.stabstr != NULL) |
252b5132 RH |
1117 | { |
1118 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) | |
b34976b6 | 1119 | return FALSE; |
252b5132 RH |
1120 | } |
1121 | ||
1122 | /* Write out the string table. */ | |
1123 | if (obj_raw_syment_count (abfd) != 0 || long_section_names) | |
1124 | { | |
dc810e39 AM |
1125 | file_ptr pos; |
1126 | ||
1127 | pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz; | |
1128 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
b34976b6 | 1129 | return FALSE; |
252b5132 RH |
1130 | |
1131 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 AM |
1132 | H_PUT_32 (abfd, |
1133 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
1134 | strbuf); | |
252b5132 | 1135 | #else |
dc810e39 | 1136 | #error Change H_PUT_32 above |
252b5132 RH |
1137 | #endif |
1138 | ||
dc810e39 AM |
1139 | if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
1140 | != STRING_SIZE_SIZE) | |
b34976b6 | 1141 | return FALSE; |
252b5132 RH |
1142 | |
1143 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) | |
b34976b6 | 1144 | return FALSE; |
d71f672e | 1145 | |
b34976b6 | 1146 | obj_coff_strings_written (abfd) = TRUE; |
252b5132 RH |
1147 | } |
1148 | ||
1149 | _bfd_stringtab_free (finfo.strtab); | |
1150 | ||
1151 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
1152 | not try to write out the symbols. */ | |
1153 | bfd_get_symcount (abfd) = 0; | |
1154 | ||
b34976b6 | 1155 | return TRUE; |
252b5132 RH |
1156 | |
1157 | error_return: | |
1158 | if (debug_merge_allocated) | |
1159 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
1160 | if (finfo.strtab != NULL) | |
1161 | _bfd_stringtab_free (finfo.strtab); | |
1162 | if (finfo.section_info != NULL) | |
1163 | { | |
1164 | unsigned int i; | |
1165 | ||
1166 | for (i = 0; i < abfd->section_count; i++) | |
1167 | { | |
1168 | if (finfo.section_info[i].relocs != NULL) | |
1169 | free (finfo.section_info[i].relocs); | |
1170 | if (finfo.section_info[i].rel_hashes != NULL) | |
1171 | free (finfo.section_info[i].rel_hashes); | |
1172 | } | |
1173 | free (finfo.section_info); | |
1174 | } | |
1175 | if (finfo.internal_syms != NULL) | |
1176 | free (finfo.internal_syms); | |
1177 | if (finfo.sec_ptrs != NULL) | |
1178 | free (finfo.sec_ptrs); | |
1179 | if (finfo.sym_indices != NULL) | |
1180 | free (finfo.sym_indices); | |
1181 | if (finfo.outsyms != NULL) | |
1182 | free (finfo.outsyms); | |
1183 | if (finfo.linenos != NULL) | |
1184 | free (finfo.linenos); | |
1185 | if (finfo.contents != NULL) | |
1186 | free (finfo.contents); | |
1187 | if (finfo.external_relocs != NULL) | |
1188 | free (finfo.external_relocs); | |
1189 | if (finfo.internal_relocs != NULL) | |
1190 | free (finfo.internal_relocs); | |
1191 | if (external_relocs != NULL) | |
1192 | free (external_relocs); | |
b34976b6 | 1193 | return FALSE; |
252b5132 RH |
1194 | } |
1195 | ||
8b956130 | 1196 | /* Parse out a -heap <reserved>,<commit> line. */ |
252b5132 RH |
1197 | |
1198 | static char * | |
8b956130 | 1199 | dores_com (char *ptr, bfd *output_bfd, int heap) |
252b5132 | 1200 | { |
244148ad | 1201 | if (coff_data(output_bfd)->pe) |
252b5132 RH |
1202 | { |
1203 | int val = strtoul (ptr, &ptr, 0); | |
8b956130 | 1204 | |
252b5132 | 1205 | if (heap) |
dc810e39 | 1206 | pe_data(output_bfd)->pe_opthdr.SizeOfHeapReserve = val; |
252b5132 | 1207 | else |
dc810e39 | 1208 | pe_data(output_bfd)->pe_opthdr.SizeOfStackReserve = val; |
252b5132 | 1209 | |
244148ad | 1210 | if (ptr[0] == ',') |
252b5132 | 1211 | { |
dc810e39 | 1212 | val = strtoul (ptr+1, &ptr, 0); |
252b5132 | 1213 | if (heap) |
dc810e39 | 1214 | pe_data(output_bfd)->pe_opthdr.SizeOfHeapCommit = val; |
252b5132 | 1215 | else |
dc810e39 | 1216 | pe_data(output_bfd)->pe_opthdr.SizeOfStackCommit = val; |
252b5132 RH |
1217 | } |
1218 | } | |
1219 | return ptr; | |
1220 | } | |
1221 | ||
8b956130 NC |
1222 | static char * |
1223 | get_name (char *ptr, char **dst) | |
252b5132 RH |
1224 | { |
1225 | while (*ptr == ' ') | |
1226 | ptr++; | |
1227 | *dst = ptr; | |
1228 | while (*ptr && *ptr != ' ') | |
1229 | ptr++; | |
1230 | *ptr = 0; | |
1231 | return ptr+1; | |
1232 | } | |
1233 | ||
8b956130 | 1234 | /* Process any magic embedded commands in a section called .drectve. */ |
244148ad | 1235 | |
252b5132 | 1236 | static int |
8b956130 NC |
1237 | process_embedded_commands (bfd *output_bfd, |
1238 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1239 | bfd *abfd) | |
252b5132 RH |
1240 | { |
1241 | asection *sec = bfd_get_section_by_name (abfd, ".drectve"); | |
1242 | char *s; | |
1243 | char *e; | |
eea6121a | 1244 | bfd_byte *copy; |
8b956130 | 1245 | |
244148ad | 1246 | if (!sec) |
252b5132 | 1247 | return 1; |
244148ad | 1248 | |
eea6121a | 1249 | if (!bfd_malloc_and_get_section (abfd, sec, ©)) |
252b5132 | 1250 | { |
eea6121a AM |
1251 | if (copy != NULL) |
1252 | free (copy); | |
252b5132 RH |
1253 | return 0; |
1254 | } | |
f075ee0c | 1255 | e = (char *) copy + sec->size; |
8b956130 | 1256 | |
f075ee0c | 1257 | for (s = (char *) copy; s < e ; ) |
252b5132 | 1258 | { |
f075ee0c | 1259 | if (s[0] != '-') |
8b956130 NC |
1260 | { |
1261 | s++; | |
1262 | continue; | |
1263 | } | |
0112cd26 | 1264 | if (CONST_STRNEQ (s, "-attr")) |
252b5132 RH |
1265 | { |
1266 | char *name; | |
1267 | char *attribs; | |
1268 | asection *asec; | |
252b5132 RH |
1269 | int loop = 1; |
1270 | int had_write = 0; | |
252b5132 | 1271 | int had_exec= 0; |
8b956130 | 1272 | |
252b5132 | 1273 | s += 5; |
8b956130 NC |
1274 | s = get_name (s, &name); |
1275 | s = get_name (s, &attribs); | |
1276 | ||
1277 | while (loop) | |
1278 | { | |
1279 | switch (*attribs++) | |
1280 | { | |
1281 | case 'W': | |
1282 | had_write = 1; | |
1283 | break; | |
1284 | case 'R': | |
8b956130 NC |
1285 | break; |
1286 | case 'S': | |
8b956130 NC |
1287 | break; |
1288 | case 'X': | |
1289 | had_exec = 1; | |
1290 | break; | |
1291 | default: | |
1292 | loop = 0; | |
1293 | } | |
1294 | } | |
252b5132 | 1295 | asec = bfd_get_section_by_name (abfd, name); |
8b956130 NC |
1296 | if (asec) |
1297 | { | |
1298 | if (had_exec) | |
1299 | asec->flags |= SEC_CODE; | |
1300 | if (!had_write) | |
1301 | asec->flags |= SEC_READONLY; | |
1302 | } | |
252b5132 | 1303 | } |
0112cd26 NC |
1304 | else if (CONST_STRNEQ (s, "-heap")) |
1305 | s = dores_com (s + 5, output_bfd, 1); | |
8b956130 | 1306 | |
0112cd26 NC |
1307 | else if (CONST_STRNEQ (s, "-stack")) |
1308 | s = dores_com (s + 6, output_bfd, 0); | |
8b956130 | 1309 | |
c1711530 DK |
1310 | /* GNU extension for aligned commons. */ |
1311 | else if (CONST_STRNEQ (s, "-aligncomm:")) | |
1312 | { | |
1313 | /* Common symbols must be aligned on reading, as it | |
1314 | is too late to do anything here, after they have | |
1315 | already been allocated, so just skip the directive. */ | |
1316 | s += 11; | |
1317 | } | |
1318 | ||
244148ad | 1319 | else |
252b5132 RH |
1320 | s++; |
1321 | } | |
1322 | free (copy); | |
1323 | return 1; | |
1324 | } | |
1325 | ||
1326 | /* Place a marker against all symbols which are used by relocations. | |
1327 | This marker can be picked up by the 'do we skip this symbol ?' | |
1328 | loop in _bfd_coff_link_input_bfd() and used to prevent skipping | |
8b956130 | 1329 | that symbol. */ |
252b5132 RH |
1330 | |
1331 | static void | |
8b956130 | 1332 | mark_relocs (struct coff_final_link_info *finfo, bfd *input_bfd) |
252b5132 RH |
1333 | { |
1334 | asection * a; | |
1335 | ||
1336 | if ((bfd_get_file_flags (input_bfd) & HAS_SYMS) == 0) | |
1337 | return; | |
244148ad | 1338 | |
252b5132 RH |
1339 | for (a = input_bfd->sections; a != (asection *) NULL; a = a->next) |
1340 | { | |
1341 | struct internal_reloc * internal_relocs; | |
1342 | struct internal_reloc * irel; | |
1343 | struct internal_reloc * irelend; | |
1344 | ||
252b5132 RH |
1345 | if ((a->flags & SEC_RELOC) == 0 || a->reloc_count < 1) |
1346 | continue; | |
a8fcf378 NC |
1347 | /* Don't mark relocs in excluded sections. */ |
1348 | if (a->output_section == bfd_abs_section_ptr) | |
1349 | continue; | |
252b5132 RH |
1350 | |
1351 | /* Read in the relocs. */ | |
1352 | internal_relocs = _bfd_coff_read_internal_relocs | |
b34976b6 | 1353 | (input_bfd, a, FALSE, |
252b5132 | 1354 | finfo->external_relocs, |
1049f94e AM |
1355 | finfo->info->relocatable, |
1356 | (finfo->info->relocatable | |
252b5132 RH |
1357 | ? (finfo->section_info[ a->output_section->target_index ].relocs + a->output_section->reloc_count) |
1358 | : finfo->internal_relocs) | |
1359 | ); | |
244148ad | 1360 | |
252b5132 RH |
1361 | if (internal_relocs == NULL) |
1362 | continue; | |
1363 | ||
1364 | irel = internal_relocs; | |
1365 | irelend = irel + a->reloc_count; | |
1366 | ||
1367 | /* Place a mark in the sym_indices array (whose entries have | |
1368 | been initialised to 0) for all of the symbols that are used | |
1369 | in the relocation table. This will then be picked up in the | |
8b956130 | 1370 | skip/don't-skip pass. */ |
252b5132 | 1371 | for (; irel < irelend; irel++) |
8b956130 | 1372 | finfo->sym_indices[ irel->r_symndx ] = -1; |
252b5132 RH |
1373 | } |
1374 | } | |
1375 | ||
1376 | /* Link an input file into the linker output file. This function | |
1377 | handles all the sections and relocations of the input file at once. */ | |
1378 | ||
b34976b6 | 1379 | bfd_boolean |
8b956130 | 1380 | _bfd_coff_link_input_bfd (struct coff_final_link_info *finfo, bfd *input_bfd) |
252b5132 | 1381 | { |
b2d638c7 ILT |
1382 | unsigned int n_tmask = coff_data (input_bfd)->local_n_tmask; |
1383 | unsigned int n_btshft = coff_data (input_bfd)->local_n_btshft; | |
b34976b6 | 1384 | bfd_boolean (*adjust_symndx) |
8b956130 NC |
1385 | (bfd *, struct bfd_link_info *, bfd *, asection *, |
1386 | struct internal_reloc *, bfd_boolean *); | |
252b5132 RH |
1387 | bfd *output_bfd; |
1388 | const char *strings; | |
1389 | bfd_size_type syment_base; | |
b34976b6 | 1390 | bfd_boolean copy, hash; |
252b5132 RH |
1391 | bfd_size_type isymesz; |
1392 | bfd_size_type osymesz; | |
1393 | bfd_size_type linesz; | |
1394 | bfd_byte *esym; | |
1395 | bfd_byte *esym_end; | |
1396 | struct internal_syment *isymp; | |
1397 | asection **secpp; | |
1398 | long *indexp; | |
1399 | unsigned long output_index; | |
1400 | bfd_byte *outsym; | |
1401 | struct coff_link_hash_entry **sym_hash; | |
1402 | asection *o; | |
1403 | ||
1404 | /* Move all the symbols to the output file. */ | |
1405 | ||
1406 | output_bfd = finfo->output_bfd; | |
252b5132 RH |
1407 | strings = NULL; |
1408 | syment_base = obj_raw_syment_count (output_bfd); | |
1409 | isymesz = bfd_coff_symesz (input_bfd); | |
1410 | osymesz = bfd_coff_symesz (output_bfd); | |
1411 | linesz = bfd_coff_linesz (input_bfd); | |
1412 | BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)); | |
1413 | ||
b34976b6 | 1414 | copy = FALSE; |
252b5132 | 1415 | if (! finfo->info->keep_memory) |
b34976b6 AM |
1416 | copy = TRUE; |
1417 | hash = TRUE; | |
252b5132 | 1418 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) |
b34976b6 | 1419 | hash = FALSE; |
252b5132 RH |
1420 | |
1421 | if (! _bfd_coff_get_external_symbols (input_bfd)) | |
b34976b6 | 1422 | return FALSE; |
252b5132 RH |
1423 | |
1424 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
1425 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
1426 | isymp = finfo->internal_syms; | |
1427 | secpp = finfo->sec_ptrs; | |
1428 | indexp = finfo->sym_indices; | |
1429 | output_index = syment_base; | |
1430 | outsym = finfo->outsyms; | |
1431 | ||
8b956130 NC |
1432 | if (coff_data (output_bfd)->pe |
1433 | && ! process_embedded_commands (output_bfd, finfo->info, input_bfd)) | |
1434 | return FALSE; | |
252b5132 | 1435 | |
8b956130 NC |
1436 | /* If we are going to perform relocations and also strip/discard some |
1437 | symbols then we must make sure that we do not strip/discard those | |
1438 | symbols that are going to be involved in the relocations. */ | |
252b5132 RH |
1439 | if (( finfo->info->strip != strip_none |
1440 | || finfo->info->discard != discard_none) | |
1049f94e | 1441 | && finfo->info->relocatable) |
252b5132 | 1442 | { |
8b956130 | 1443 | /* Mark the symbol array as 'not-used'. */ |
244148ad KH |
1444 | memset (indexp, 0, obj_raw_syment_count (input_bfd) * sizeof * indexp); |
1445 | ||
252b5132 RH |
1446 | mark_relocs (finfo, input_bfd); |
1447 | } | |
1448 | ||
1449 | while (esym < esym_end) | |
1450 | { | |
1451 | struct internal_syment isym; | |
5d54c628 | 1452 | enum coff_symbol_classification classification; |
b34976b6 AM |
1453 | bfd_boolean skip; |
1454 | bfd_boolean global; | |
1455 | bfd_boolean dont_skip_symbol; | |
252b5132 RH |
1456 | int add; |
1457 | ||
8b956130 | 1458 | bfd_coff_swap_sym_in (input_bfd, esym, isymp); |
252b5132 RH |
1459 | |
1460 | /* Make a copy of *isymp so that the relocate_section function | |
1461 | always sees the original values. This is more reliable than | |
1462 | always recomputing the symbol value even if we are stripping | |
1463 | the symbol. */ | |
1464 | isym = *isymp; | |
1465 | ||
5d54c628 ILT |
1466 | classification = bfd_coff_classify_symbol (input_bfd, &isym); |
1467 | switch (classification) | |
252b5132 | 1468 | { |
5d54c628 ILT |
1469 | default: |
1470 | abort (); | |
1471 | case COFF_SYMBOL_GLOBAL: | |
1472 | case COFF_SYMBOL_PE_SECTION: | |
1473 | case COFF_SYMBOL_LOCAL: | |
1474 | *secpp = coff_section_from_bfd_index (input_bfd, isym.n_scnum); | |
1475 | break; | |
1476 | case COFF_SYMBOL_COMMON: | |
1477 | *secpp = bfd_com_section_ptr; | |
1478 | break; | |
1479 | case COFF_SYMBOL_UNDEFINED: | |
1480 | *secpp = bfd_und_section_ptr; | |
1481 | break; | |
252b5132 RH |
1482 | } |
1483 | ||
1484 | /* Extract the flag indicating if this symbol is used by a | |
1485 | relocation. */ | |
1486 | if ((finfo->info->strip != strip_none | |
1487 | || finfo->info->discard != discard_none) | |
1049f94e | 1488 | && finfo->info->relocatable) |
252b5132 RH |
1489 | dont_skip_symbol = *indexp; |
1490 | else | |
b34976b6 | 1491 | dont_skip_symbol = FALSE; |
244148ad | 1492 | |
252b5132 RH |
1493 | *indexp = -1; |
1494 | ||
b34976b6 AM |
1495 | skip = FALSE; |
1496 | global = FALSE; | |
252b5132 RH |
1497 | add = 1 + isym.n_numaux; |
1498 | ||
1499 | /* If we are stripping all symbols, we want to skip this one. */ | |
1500 | if (finfo->info->strip == strip_all && ! dont_skip_symbol) | |
b34976b6 | 1501 | skip = TRUE; |
252b5132 RH |
1502 | |
1503 | if (! skip) | |
1504 | { | |
5d54c628 | 1505 | switch (classification) |
252b5132 | 1506 | { |
5d54c628 ILT |
1507 | default: |
1508 | abort (); | |
1509 | case COFF_SYMBOL_GLOBAL: | |
1510 | case COFF_SYMBOL_COMMON: | |
1511 | case COFF_SYMBOL_PE_SECTION: | |
252b5132 RH |
1512 | /* This is a global symbol. Global symbols come at the |
1513 | end of the symbol table, so skip them for now. | |
1514 | Locally defined function symbols, however, are an | |
1515 | exception, and are not moved to the end. */ | |
b34976b6 | 1516 | global = TRUE; |
5d54c628 | 1517 | if (! ISFCN (isym.n_type)) |
b34976b6 | 1518 | skip = TRUE; |
5d54c628 ILT |
1519 | break; |
1520 | ||
1521 | case COFF_SYMBOL_UNDEFINED: | |
1522 | /* Undefined symbols are left for the end. */ | |
b34976b6 AM |
1523 | global = TRUE; |
1524 | skip = TRUE; | |
5d54c628 ILT |
1525 | break; |
1526 | ||
1527 | case COFF_SYMBOL_LOCAL: | |
252b5132 RH |
1528 | /* This is a local symbol. Skip it if we are discarding |
1529 | local symbols. */ | |
1530 | if (finfo->info->discard == discard_all && ! dont_skip_symbol) | |
b34976b6 | 1531 | skip = TRUE; |
5d54c628 | 1532 | break; |
252b5132 RH |
1533 | } |
1534 | } | |
1535 | ||
440c4607 NC |
1536 | #ifndef COFF_WITH_PE |
1537 | /* Skip section symbols for sections which are not going to be | |
862517b6 | 1538 | emitted. */ |
440c4607 | 1539 | if (!skip |
f0803690 | 1540 | && !dont_skip_symbol |
440c4607 NC |
1541 | && isym.n_sclass == C_STAT |
1542 | && isym.n_type == T_NULL | |
f0803690 AM |
1543 | && isym.n_numaux > 0 |
1544 | && ((*secpp)->output_section == bfd_abs_section_ptr | |
1545 | || bfd_section_removed_from_list (output_bfd, | |
1546 | (*secpp)->output_section))) | |
3922a8c1 | 1547 | skip = TRUE; |
440c4607 NC |
1548 | #endif |
1549 | ||
252b5132 RH |
1550 | /* If we stripping debugging symbols, and this is a debugging |
1551 | symbol, then skip it. FIXME: gas sets the section to N_ABS | |
1552 | for some types of debugging symbols; I don't know if this is | |
1553 | a bug or not. In any case, we handle it here. */ | |
1554 | if (! skip | |
1555 | && finfo->info->strip == strip_debugger | |
1556 | && ! dont_skip_symbol | |
1557 | && (isym.n_scnum == N_DEBUG | |
1558 | || (isym.n_scnum == N_ABS | |
1559 | && (isym.n_sclass == C_AUTO | |
1560 | || isym.n_sclass == C_REG | |
1561 | || isym.n_sclass == C_MOS | |
1562 | || isym.n_sclass == C_MOE | |
1563 | || isym.n_sclass == C_MOU | |
1564 | || isym.n_sclass == C_ARG | |
1565 | || isym.n_sclass == C_REGPARM | |
1566 | || isym.n_sclass == C_FIELD | |
1567 | || isym.n_sclass == C_EOS)))) | |
b34976b6 | 1568 | skip = TRUE; |
252b5132 RH |
1569 | |
1570 | /* If some symbols are stripped based on the name, work out the | |
1571 | name and decide whether to skip this symbol. */ | |
1572 | if (! skip | |
1573 | && (finfo->info->strip == strip_some | |
1574 | || finfo->info->discard == discard_l)) | |
1575 | { | |
1576 | const char *name; | |
1577 | char buf[SYMNMLEN + 1]; | |
1578 | ||
1579 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); | |
1580 | if (name == NULL) | |
b34976b6 | 1581 | return FALSE; |
252b5132 RH |
1582 | |
1583 | if (! dont_skip_symbol | |
1584 | && ((finfo->info->strip == strip_some | |
b34976b6 AM |
1585 | && (bfd_hash_lookup (finfo->info->keep_hash, name, FALSE, |
1586 | FALSE) == NULL)) | |
252b5132 RH |
1587 | || (! global |
1588 | && finfo->info->discard == discard_l | |
1589 | && bfd_is_local_label_name (input_bfd, name)))) | |
b34976b6 | 1590 | skip = TRUE; |
252b5132 RH |
1591 | } |
1592 | ||
1593 | /* If this is an enum, struct, or union tag, see if we have | |
1594 | already output an identical type. */ | |
1595 | if (! skip | |
1596 | && (finfo->output_bfd->flags & BFD_TRADITIONAL_FORMAT) == 0 | |
1597 | && (isym.n_sclass == C_ENTAG | |
1598 | || isym.n_sclass == C_STRTAG | |
1599 | || isym.n_sclass == C_UNTAG) | |
1600 | && isym.n_numaux == 1) | |
1601 | { | |
1602 | const char *name; | |
1603 | char buf[SYMNMLEN + 1]; | |
1604 | struct coff_debug_merge_hash_entry *mh; | |
1605 | struct coff_debug_merge_type *mt; | |
1606 | union internal_auxent aux; | |
1607 | struct coff_debug_merge_element **epp; | |
1608 | bfd_byte *esl, *eslend; | |
1609 | struct internal_syment *islp; | |
dc810e39 | 1610 | bfd_size_type amt; |
252b5132 RH |
1611 | |
1612 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); | |
1613 | if (name == NULL) | |
b34976b6 | 1614 | return FALSE; |
252b5132 RH |
1615 | |
1616 | /* Ignore fake names invented by compiler; treat them all as | |
1617 | the same name. */ | |
1618 | if (*name == '~' || *name == '.' || *name == '$' | |
1619 | || (*name == bfd_get_symbol_leading_char (input_bfd) | |
1620 | && (name[1] == '~' || name[1] == '.' || name[1] == '$'))) | |
1621 | name = ""; | |
1622 | ||
1623 | mh = coff_debug_merge_hash_lookup (&finfo->debug_merge, name, | |
b34976b6 | 1624 | TRUE, TRUE); |
252b5132 | 1625 | if (mh == NULL) |
b34976b6 | 1626 | return FALSE; |
252b5132 RH |
1627 | |
1628 | /* Allocate memory to hold type information. If this turns | |
1629 | out to be a duplicate, we pass this address to | |
1630 | bfd_release. */ | |
dc810e39 | 1631 | amt = sizeof (struct coff_debug_merge_type); |
a50b1753 | 1632 | mt = (struct coff_debug_merge_type *) bfd_alloc (input_bfd, amt); |
252b5132 | 1633 | if (mt == NULL) |
b34976b6 | 1634 | return FALSE; |
96d56e9f | 1635 | mt->type_class = isym.n_sclass; |
252b5132 RH |
1636 | |
1637 | /* Pick up the aux entry, which points to the end of the tag | |
1638 | entries. */ | |
8b956130 | 1639 | bfd_coff_swap_aux_in (input_bfd, (esym + isymesz), |
252b5132 | 1640 | isym.n_type, isym.n_sclass, 0, isym.n_numaux, |
8b956130 | 1641 | &aux); |
252b5132 RH |
1642 | |
1643 | /* Gather the elements. */ | |
1644 | epp = &mt->elements; | |
1645 | mt->elements = NULL; | |
1646 | islp = isymp + 2; | |
1647 | esl = esym + 2 * isymesz; | |
1648 | eslend = ((bfd_byte *) obj_coff_external_syms (input_bfd) | |
1649 | + aux.x_sym.x_fcnary.x_fcn.x_endndx.l * isymesz); | |
1650 | while (esl < eslend) | |
1651 | { | |
1652 | const char *elename; | |
1653 | char elebuf[SYMNMLEN + 1]; | |
00692651 | 1654 | char *name_copy; |
252b5132 | 1655 | |
8b956130 | 1656 | bfd_coff_swap_sym_in (input_bfd, esl, islp); |
252b5132 | 1657 | |
dc810e39 | 1658 | amt = sizeof (struct coff_debug_merge_element); |
a50b1753 NC |
1659 | *epp = (struct coff_debug_merge_element *) |
1660 | bfd_alloc (input_bfd, amt); | |
252b5132 | 1661 | if (*epp == NULL) |
b34976b6 | 1662 | return FALSE; |
252b5132 RH |
1663 | |
1664 | elename = _bfd_coff_internal_syment_name (input_bfd, islp, | |
1665 | elebuf); | |
1666 | if (elename == NULL) | |
b34976b6 | 1667 | return FALSE; |
252b5132 | 1668 | |
dc810e39 | 1669 | amt = strlen (elename) + 1; |
a50b1753 | 1670 | name_copy = (char *) bfd_alloc (input_bfd, amt); |
00692651 | 1671 | if (name_copy == NULL) |
b34976b6 | 1672 | return FALSE; |
00692651 | 1673 | strcpy (name_copy, elename); |
252b5132 | 1674 | |
00692651 | 1675 | (*epp)->name = name_copy; |
252b5132 RH |
1676 | (*epp)->type = islp->n_type; |
1677 | (*epp)->tagndx = 0; | |
1678 | if (islp->n_numaux >= 1 | |
1679 | && islp->n_type != T_NULL | |
1680 | && islp->n_sclass != C_EOS) | |
1681 | { | |
1682 | union internal_auxent eleaux; | |
1683 | long indx; | |
1684 | ||
8b956130 | 1685 | bfd_coff_swap_aux_in (input_bfd, (esl + isymesz), |
252b5132 | 1686 | islp->n_type, islp->n_sclass, 0, |
8b956130 | 1687 | islp->n_numaux, &eleaux); |
252b5132 RH |
1688 | indx = eleaux.x_sym.x_tagndx.l; |
1689 | ||
1690 | /* FIXME: If this tagndx entry refers to a symbol | |
1691 | defined later in this file, we just ignore it. | |
1692 | Handling this correctly would be tedious, and may | |
1693 | not be required. */ | |
252b5132 RH |
1694 | if (indx > 0 |
1695 | && (indx | |
1696 | < ((esym - | |
1697 | (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
1698 | / (long) isymesz))) | |
1699 | { | |
1700 | (*epp)->tagndx = finfo->sym_indices[indx]; | |
1701 | if ((*epp)->tagndx < 0) | |
1702 | (*epp)->tagndx = 0; | |
1703 | } | |
1704 | } | |
1705 | epp = &(*epp)->next; | |
1706 | *epp = NULL; | |
1707 | ||
1708 | esl += (islp->n_numaux + 1) * isymesz; | |
1709 | islp += islp->n_numaux + 1; | |
1710 | } | |
1711 | ||
1712 | /* See if we already have a definition which matches this | |
1713 | type. We always output the type if it has no elements, | |
1714 | for simplicity. */ | |
1715 | if (mt->elements == NULL) | |
8b956130 | 1716 | bfd_release (input_bfd, mt); |
252b5132 RH |
1717 | else |
1718 | { | |
1719 | struct coff_debug_merge_type *mtl; | |
1720 | ||
1721 | for (mtl = mh->types; mtl != NULL; mtl = mtl->next) | |
1722 | { | |
1723 | struct coff_debug_merge_element *me, *mel; | |
1724 | ||
96d56e9f | 1725 | if (mtl->type_class != mt->type_class) |
252b5132 RH |
1726 | continue; |
1727 | ||
1728 | for (me = mt->elements, mel = mtl->elements; | |
1729 | me != NULL && mel != NULL; | |
1730 | me = me->next, mel = mel->next) | |
1731 | { | |
1732 | if (strcmp (me->name, mel->name) != 0 | |
1733 | || me->type != mel->type | |
1734 | || me->tagndx != mel->tagndx) | |
1735 | break; | |
1736 | } | |
1737 | ||
1738 | if (me == NULL && mel == NULL) | |
1739 | break; | |
1740 | } | |
1741 | ||
1742 | if (mtl == NULL || (bfd_size_type) mtl->indx >= syment_base) | |
1743 | { | |
1744 | /* This is the first definition of this type. */ | |
1745 | mt->indx = output_index; | |
1746 | mt->next = mh->types; | |
1747 | mh->types = mt; | |
1748 | } | |
1749 | else | |
1750 | { | |
1751 | /* This is a redefinition which can be merged. */ | |
8b956130 | 1752 | bfd_release (input_bfd, mt); |
252b5132 RH |
1753 | *indexp = mtl->indx; |
1754 | add = (eslend - esym) / isymesz; | |
b34976b6 | 1755 | skip = TRUE; |
252b5132 RH |
1756 | } |
1757 | } | |
1758 | } | |
1759 | ||
1760 | /* We now know whether we are to skip this symbol or not. */ | |
1761 | if (! skip) | |
1762 | { | |
1763 | /* Adjust the symbol in order to output it. */ | |
1764 | ||
1765 | if (isym._n._n_n._n_zeroes == 0 | |
1766 | && isym._n._n_n._n_offset != 0) | |
1767 | { | |
1768 | const char *name; | |
1769 | bfd_size_type indx; | |
1770 | ||
1771 | /* This symbol has a long name. Enter it in the string | |
1772 | table we are building. Note that we do not check | |
1773 | bfd_coff_symname_in_debug. That is only true for | |
1774 | XCOFF, and XCOFF requires different linking code | |
1775 | anyhow. */ | |
8b956130 | 1776 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, NULL); |
252b5132 | 1777 | if (name == NULL) |
b34976b6 | 1778 | return FALSE; |
252b5132 RH |
1779 | indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy); |
1780 | if (indx == (bfd_size_type) -1) | |
b34976b6 | 1781 | return FALSE; |
252b5132 RH |
1782 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; |
1783 | } | |
1784 | ||
8add8e30 | 1785 | switch (isym.n_sclass) |
252b5132 | 1786 | { |
8add8e30 ILT |
1787 | case C_AUTO: |
1788 | case C_MOS: | |
1789 | case C_EOS: | |
1790 | case C_MOE: | |
1791 | case C_MOU: | |
1792 | case C_UNTAG: | |
1793 | case C_STRTAG: | |
1794 | case C_ENTAG: | |
1795 | case C_TPDEF: | |
1796 | case C_ARG: | |
1797 | case C_USTATIC: | |
1798 | case C_REG: | |
1799 | case C_REGPARM: | |
1800 | case C_FIELD: | |
1801 | /* The symbol value should not be modified. */ | |
1802 | break; | |
1803 | ||
1804 | case C_FCN: | |
1805 | if (obj_pe (input_bfd) | |
1806 | && strcmp (isym.n_name, ".bf") != 0 | |
1807 | && isym.n_scnum > 0) | |
1808 | { | |
1809 | /* For PE, .lf and .ef get their value left alone, | |
1810 | while .bf gets relocated. However, they all have | |
1811 | "real" section numbers, and need to be moved into | |
1812 | the new section. */ | |
1813 | isym.n_scnum = (*secpp)->output_section->target_index; | |
1814 | break; | |
1815 | } | |
1816 | /* Fall through. */ | |
1817 | default: | |
1818 | case C_LABEL: /* Not completely sure about these 2 */ | |
1819 | case C_EXTDEF: | |
1820 | case C_BLOCK: | |
1821 | case C_EFCN: | |
1822 | case C_NULL: | |
1823 | case C_EXT: | |
1824 | case C_STAT: | |
1825 | case C_SECTION: | |
1826 | case C_NT_WEAK: | |
1827 | /* Compute new symbol location. */ | |
1828 | if (isym.n_scnum > 0) | |
1829 | { | |
1830 | isym.n_scnum = (*secpp)->output_section->target_index; | |
1831 | isym.n_value += (*secpp)->output_offset; | |
1832 | if (! obj_pe (input_bfd)) | |
1833 | isym.n_value -= (*secpp)->vma; | |
1834 | if (! obj_pe (finfo->output_bfd)) | |
1835 | isym.n_value += (*secpp)->output_section->vma; | |
1836 | } | |
1837 | break; | |
1838 | ||
1839 | case C_FILE: | |
1840 | /* The value of a C_FILE symbol is the symbol index of | |
1841 | the next C_FILE symbol. The value of the last C_FILE | |
1842 | symbol is the symbol index to the first external | |
1843 | symbol (actually, coff_renumber_symbols does not get | |
1844 | this right--it just sets the value of the last C_FILE | |
1845 | symbol to zero--and nobody has ever complained about | |
1846 | it). We try to get this right, below, just before we | |
1847 | write the symbols out, but in the general case we may | |
1848 | have to write the symbol out twice. */ | |
252b5132 | 1849 | if (finfo->last_file_index != -1 |
cea4409c | 1850 | && finfo->last_file.n_value != (bfd_vma) output_index) |
252b5132 | 1851 | { |
8add8e30 ILT |
1852 | /* We must correct the value of the last C_FILE |
1853 | entry. */ | |
252b5132 RH |
1854 | finfo->last_file.n_value = output_index; |
1855 | if ((bfd_size_type) finfo->last_file_index >= syment_base) | |
1856 | { | |
1857 | /* The last C_FILE symbol is in this input file. */ | |
1858 | bfd_coff_swap_sym_out (output_bfd, | |
8b956130 NC |
1859 | &finfo->last_file, |
1860 | (finfo->outsyms | |
1861 | + ((finfo->last_file_index | |
1862 | - syment_base) | |
1863 | * osymesz))); | |
252b5132 RH |
1864 | } |
1865 | else | |
1866 | { | |
dc810e39 AM |
1867 | file_ptr pos; |
1868 | ||
252b5132 RH |
1869 | /* We have already written out the last C_FILE |
1870 | symbol. We need to write it out again. We | |
1871 | borrow *outsym temporarily. */ | |
1872 | bfd_coff_swap_sym_out (output_bfd, | |
8b956130 | 1873 | &finfo->last_file, outsym); |
dc810e39 AM |
1874 | pos = obj_sym_filepos (output_bfd); |
1875 | pos += finfo->last_file_index * osymesz; | |
1876 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
1877 | || bfd_bwrite (outsym, osymesz, output_bfd) != osymesz) | |
b34976b6 | 1878 | return FALSE; |
252b5132 RH |
1879 | } |
1880 | } | |
1881 | ||
1882 | finfo->last_file_index = output_index; | |
1883 | finfo->last_file = isym; | |
8add8e30 | 1884 | break; |
252b5132 RH |
1885 | } |
1886 | ||
1887 | /* If doing task linking, convert normal global function symbols to | |
e4202681 NC |
1888 | static functions. */ |
1889 | if (finfo->info->task_link && IS_EXTERNAL (input_bfd, isym)) | |
252b5132 RH |
1890 | isym.n_sclass = C_STAT; |
1891 | ||
1892 | /* Output the symbol. */ | |
8b956130 | 1893 | bfd_coff_swap_sym_out (output_bfd, &isym, outsym); |
252b5132 RH |
1894 | |
1895 | *indexp = output_index; | |
1896 | ||
1897 | if (global) | |
1898 | { | |
1899 | long indx; | |
1900 | struct coff_link_hash_entry *h; | |
1901 | ||
1902 | indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
1903 | / isymesz); | |
1904 | h = obj_coff_sym_hashes (input_bfd)[indx]; | |
1905 | if (h == NULL) | |
1906 | { | |
1907 | /* This can happen if there were errors earlier in | |
1908 | the link. */ | |
1909 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1910 | return FALSE; |
252b5132 RH |
1911 | } |
1912 | h->indx = output_index; | |
1913 | } | |
1914 | ||
1915 | output_index += add; | |
1916 | outsym += add * osymesz; | |
1917 | } | |
1918 | ||
1919 | esym += add * isymesz; | |
1920 | isymp += add; | |
1921 | ++secpp; | |
1922 | ++indexp; | |
1923 | for (--add; add > 0; --add) | |
1924 | { | |
1925 | *secpp++ = NULL; | |
1926 | *indexp++ = -1; | |
1927 | } | |
1928 | } | |
1929 | ||
1930 | /* Fix up the aux entries. This must be done in a separate pass, | |
1931 | because we don't know the correct symbol indices until we have | |
1932 | already decided which symbols we are going to keep. */ | |
252b5132 RH |
1933 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); |
1934 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
1935 | isymp = finfo->internal_syms; | |
1936 | indexp = finfo->sym_indices; | |
1937 | sym_hash = obj_coff_sym_hashes (input_bfd); | |
1938 | outsym = finfo->outsyms; | |
8b956130 | 1939 | |
252b5132 RH |
1940 | while (esym < esym_end) |
1941 | { | |
1942 | int add; | |
1943 | ||
1944 | add = 1 + isymp->n_numaux; | |
1945 | ||
1946 | if ((*indexp < 0 | |
1947 | || (bfd_size_type) *indexp < syment_base) | |
1948 | && (*sym_hash == NULL | |
1949 | || (*sym_hash)->auxbfd != input_bfd)) | |
1950 | esym += add * isymesz; | |
1951 | else | |
1952 | { | |
1953 | struct coff_link_hash_entry *h; | |
1954 | int i; | |
1955 | ||
1956 | h = NULL; | |
1957 | if (*indexp < 0) | |
1958 | { | |
1959 | h = *sym_hash; | |
1960 | ||
1961 | /* The m68k-motorola-sysv assembler will sometimes | |
1962 | generate two symbols with the same name, but only one | |
1963 | will have aux entries. */ | |
1964 | BFD_ASSERT (isymp->n_numaux == 0 | |
cfc9dfb1 | 1965 | || h->numaux == 0 |
252b5132 RH |
1966 | || h->numaux == isymp->n_numaux); |
1967 | } | |
1968 | ||
1969 | esym += isymesz; | |
1970 | ||
1971 | if (h == NULL) | |
1972 | outsym += osymesz; | |
1973 | ||
1974 | /* Handle the aux entries. This handling is based on | |
1975 | coff_pointerize_aux. I don't know if it always correct. */ | |
1976 | for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) | |
1977 | { | |
1978 | union internal_auxent aux; | |
1979 | union internal_auxent *auxp; | |
1980 | ||
cfc9dfb1 | 1981 | if (h != NULL && h->aux != NULL && (h->numaux > i)) |
252b5132 RH |
1982 | auxp = h->aux + i; |
1983 | else | |
1984 | { | |
8b956130 NC |
1985 | bfd_coff_swap_aux_in (input_bfd, esym, isymp->n_type, |
1986 | isymp->n_sclass, i, isymp->n_numaux, &aux); | |
252b5132 RH |
1987 | auxp = &aux; |
1988 | } | |
1989 | ||
1990 | if (isymp->n_sclass == C_FILE) | |
1991 | { | |
1992 | /* If this is a long filename, we must put it in the | |
1993 | string table. */ | |
1994 | if (auxp->x_file.x_n.x_zeroes == 0 | |
1995 | && auxp->x_file.x_n.x_offset != 0) | |
1996 | { | |
1997 | const char *filename; | |
1998 | bfd_size_type indx; | |
1999 | ||
2000 | BFD_ASSERT (auxp->x_file.x_n.x_offset | |
2001 | >= STRING_SIZE_SIZE); | |
2002 | if (strings == NULL) | |
2003 | { | |
2004 | strings = _bfd_coff_read_string_table (input_bfd); | |
2005 | if (strings == NULL) | |
b34976b6 | 2006 | return FALSE; |
252b5132 RH |
2007 | } |
2008 | filename = strings + auxp->x_file.x_n.x_offset; | |
2009 | indx = _bfd_stringtab_add (finfo->strtab, filename, | |
2010 | hash, copy); | |
2011 | if (indx == (bfd_size_type) -1) | |
b34976b6 | 2012 | return FALSE; |
252b5132 RH |
2013 | auxp->x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; |
2014 | } | |
2015 | } | |
0c429e07 NC |
2016 | else if ((isymp->n_sclass != C_STAT || isymp->n_type != T_NULL) |
2017 | && isymp->n_sclass != C_NT_WEAK) | |
252b5132 RH |
2018 | { |
2019 | unsigned long indx; | |
2020 | ||
2021 | if (ISFCN (isymp->n_type) | |
2022 | || ISTAG (isymp->n_sclass) | |
2023 | || isymp->n_sclass == C_BLOCK | |
2024 | || isymp->n_sclass == C_FCN) | |
2025 | { | |
2026 | indx = auxp->x_sym.x_fcnary.x_fcn.x_endndx.l; | |
2027 | if (indx > 0 | |
2028 | && indx < obj_raw_syment_count (input_bfd)) | |
2029 | { | |
2030 | /* We look forward through the symbol for | |
2031 | the index of the next symbol we are going | |
2032 | to include. I don't know if this is | |
2033 | entirely right. */ | |
2034 | while ((finfo->sym_indices[indx] < 0 | |
2035 | || ((bfd_size_type) finfo->sym_indices[indx] | |
2036 | < syment_base)) | |
2037 | && indx < obj_raw_syment_count (input_bfd)) | |
2038 | ++indx; | |
2039 | if (indx >= obj_raw_syment_count (input_bfd)) | |
2040 | indx = output_index; | |
2041 | else | |
2042 | indx = finfo->sym_indices[indx]; | |
2043 | auxp->x_sym.x_fcnary.x_fcn.x_endndx.l = indx; | |
2044 | } | |
2045 | } | |
2046 | ||
2047 | indx = auxp->x_sym.x_tagndx.l; | |
2048 | if (indx > 0 && indx < obj_raw_syment_count (input_bfd)) | |
2049 | { | |
2050 | long symindx; | |
2051 | ||
2052 | symindx = finfo->sym_indices[indx]; | |
2053 | if (symindx < 0) | |
2054 | auxp->x_sym.x_tagndx.l = 0; | |
2055 | else | |
2056 | auxp->x_sym.x_tagndx.l = symindx; | |
2057 | } | |
2058 | ||
2059 | /* The .bf symbols are supposed to be linked through | |
2060 | the endndx field. We need to carry this list | |
2061 | across object files. */ | |
2062 | if (i == 0 | |
2063 | && h == NULL | |
2064 | && isymp->n_sclass == C_FCN | |
2065 | && (isymp->_n._n_n._n_zeroes != 0 | |
2066 | || isymp->_n._n_n._n_offset == 0) | |
2067 | && isymp->_n._n_name[0] == '.' | |
2068 | && isymp->_n._n_name[1] == 'b' | |
2069 | && isymp->_n._n_name[2] == 'f' | |
2070 | && isymp->_n._n_name[3] == '\0') | |
2071 | { | |
2072 | if (finfo->last_bf_index != -1) | |
2073 | { | |
2074 | finfo->last_bf.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
2075 | *indexp; | |
2076 | ||
2077 | if ((bfd_size_type) finfo->last_bf_index | |
2078 | >= syment_base) | |
2079 | { | |
8b956130 | 2080 | void *auxout; |
252b5132 RH |
2081 | |
2082 | /* The last .bf symbol is in this input | |
2083 | file. This will only happen if the | |
2084 | assembler did not set up the .bf | |
2085 | endndx symbols correctly. */ | |
8b956130 NC |
2086 | auxout = (finfo->outsyms |
2087 | + ((finfo->last_bf_index | |
2088 | - syment_base) | |
2089 | * osymesz)); | |
2090 | ||
252b5132 | 2091 | bfd_coff_swap_aux_out (output_bfd, |
8b956130 | 2092 | &finfo->last_bf, |
252b5132 RH |
2093 | isymp->n_type, |
2094 | isymp->n_sclass, | |
2095 | 0, isymp->n_numaux, | |
2096 | auxout); | |
2097 | } | |
2098 | else | |
2099 | { | |
dc810e39 AM |
2100 | file_ptr pos; |
2101 | ||
252b5132 RH |
2102 | /* We have already written out the last |
2103 | .bf aux entry. We need to write it | |
2104 | out again. We borrow *outsym | |
2105 | temporarily. FIXME: This case should | |
2106 | be made faster. */ | |
2107 | bfd_coff_swap_aux_out (output_bfd, | |
8b956130 | 2108 | &finfo->last_bf, |
252b5132 RH |
2109 | isymp->n_type, |
2110 | isymp->n_sclass, | |
2111 | 0, isymp->n_numaux, | |
8b956130 | 2112 | outsym); |
dc810e39 AM |
2113 | pos = obj_sym_filepos (output_bfd); |
2114 | pos += finfo->last_bf_index * osymesz; | |
2115 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
2116 | || (bfd_bwrite (outsym, osymesz, output_bfd) | |
2117 | != osymesz)) | |
b34976b6 | 2118 | return FALSE; |
252b5132 RH |
2119 | } |
2120 | } | |
2121 | ||
2122 | if (auxp->x_sym.x_fcnary.x_fcn.x_endndx.l != 0) | |
2123 | finfo->last_bf_index = -1; | |
2124 | else | |
2125 | { | |
2126 | /* The endndx field of this aux entry must | |
2127 | be updated with the symbol number of the | |
2128 | next .bf symbol. */ | |
2129 | finfo->last_bf = *auxp; | |
2130 | finfo->last_bf_index = (((outsym - finfo->outsyms) | |
2131 | / osymesz) | |
2132 | + syment_base); | |
2133 | } | |
2134 | } | |
2135 | } | |
2136 | ||
2137 | if (h == NULL) | |
2138 | { | |
8b956130 | 2139 | bfd_coff_swap_aux_out (output_bfd, auxp, isymp->n_type, |
252b5132 | 2140 | isymp->n_sclass, i, isymp->n_numaux, |
8b956130 | 2141 | outsym); |
252b5132 RH |
2142 | outsym += osymesz; |
2143 | } | |
2144 | ||
2145 | esym += isymesz; | |
2146 | } | |
2147 | } | |
2148 | ||
2149 | indexp += add; | |
2150 | isymp += add; | |
2151 | sym_hash += add; | |
2152 | } | |
2153 | ||
2154 | /* Relocate the line numbers, unless we are stripping them. */ | |
2155 | if (finfo->info->strip == strip_none | |
2156 | || finfo->info->strip == strip_some) | |
2157 | { | |
2158 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
2159 | { | |
2160 | bfd_vma offset; | |
2161 | bfd_byte *eline; | |
2162 | bfd_byte *elineend; | |
b545f675 | 2163 | bfd_byte *oeline; |
b34976b6 | 2164 | bfd_boolean skipping; |
dc810e39 AM |
2165 | file_ptr pos; |
2166 | bfd_size_type amt; | |
252b5132 RH |
2167 | |
2168 | /* FIXME: If SEC_HAS_CONTENTS is not for the section, then | |
2169 | build_link_order in ldwrite.c will not have created a | |
2170 | link order, which means that we will not have seen this | |
2171 | input section in _bfd_coff_final_link, which means that | |
2172 | we will not have allocated space for the line numbers of | |
2173 | this section. I don't think line numbers can be | |
2174 | meaningful for a section which does not have | |
2175 | SEC_HAS_CONTENTS set, but, if they do, this must be | |
2176 | changed. */ | |
2177 | if (o->lineno_count == 0 | |
2178 | || (o->output_section->flags & SEC_HAS_CONTENTS) == 0) | |
2179 | continue; | |
2180 | ||
2181 | if (bfd_seek (input_bfd, o->line_filepos, SEEK_SET) != 0 | |
dc810e39 | 2182 | || bfd_bread (finfo->linenos, linesz * o->lineno_count, |
252b5132 | 2183 | input_bfd) != linesz * o->lineno_count) |
b34976b6 | 2184 | return FALSE; |
252b5132 RH |
2185 | |
2186 | offset = o->output_section->vma + o->output_offset - o->vma; | |
2187 | eline = finfo->linenos; | |
b545f675 | 2188 | oeline = finfo->linenos; |
252b5132 | 2189 | elineend = eline + linesz * o->lineno_count; |
b34976b6 | 2190 | skipping = FALSE; |
252b5132 RH |
2191 | for (; eline < elineend; eline += linesz) |
2192 | { | |
2193 | struct internal_lineno iline; | |
2194 | ||
8b956130 | 2195 | bfd_coff_swap_lineno_in (input_bfd, eline, &iline); |
252b5132 RH |
2196 | |
2197 | if (iline.l_lnno != 0) | |
2198 | iline.l_addr.l_paddr += offset; | |
2199 | else if (iline.l_addr.l_symndx >= 0 | |
2200 | && ((unsigned long) iline.l_addr.l_symndx | |
2201 | < obj_raw_syment_count (input_bfd))) | |
2202 | { | |
2203 | long indx; | |
2204 | ||
2205 | indx = finfo->sym_indices[iline.l_addr.l_symndx]; | |
2206 | ||
2207 | if (indx < 0) | |
2208 | { | |
2209 | /* These line numbers are attached to a symbol | |
b545f675 ILT |
2210 | which we are stripping. We must discard the |
2211 | line numbers because reading them back with | |
2212 | no associated symbol (or associating them all | |
2213 | with symbol #0) will fail. We can't regain | |
2214 | the space in the output file, but at least | |
2215 | they're dense. */ | |
b34976b6 | 2216 | skipping = TRUE; |
252b5132 RH |
2217 | } |
2218 | else | |
2219 | { | |
2220 | struct internal_syment is; | |
2221 | union internal_auxent ia; | |
2222 | ||
2223 | /* Fix up the lnnoptr field in the aux entry of | |
2224 | the symbol. It turns out that we can't do | |
2225 | this when we modify the symbol aux entries, | |
2226 | because gas sometimes screws up the lnnoptr | |
2227 | field and makes it an offset from the start | |
2228 | of the line numbers rather than an absolute | |
2229 | file index. */ | |
2230 | bfd_coff_swap_sym_in (output_bfd, | |
8b956130 NC |
2231 | (finfo->outsyms |
2232 | + ((indx - syment_base) | |
2233 | * osymesz)), &is); | |
252b5132 RH |
2234 | if ((ISFCN (is.n_type) |
2235 | || is.n_sclass == C_BLOCK) | |
2236 | && is.n_numaux >= 1) | |
2237 | { | |
8b956130 | 2238 | void *auxptr; |
252b5132 | 2239 | |
8b956130 NC |
2240 | auxptr = (finfo->outsyms |
2241 | + ((indx - syment_base + 1) | |
2242 | * osymesz)); | |
252b5132 RH |
2243 | bfd_coff_swap_aux_in (output_bfd, auxptr, |
2244 | is.n_type, is.n_sclass, | |
8b956130 | 2245 | 0, is.n_numaux, &ia); |
252b5132 RH |
2246 | ia.x_sym.x_fcnary.x_fcn.x_lnnoptr = |
2247 | (o->output_section->line_filepos | |
2248 | + o->output_section->lineno_count * linesz | |
2249 | + eline - finfo->linenos); | |
8b956130 | 2250 | bfd_coff_swap_aux_out (output_bfd, &ia, |
252b5132 RH |
2251 | is.n_type, is.n_sclass, 0, |
2252 | is.n_numaux, auxptr); | |
2253 | } | |
b545f675 | 2254 | |
b34976b6 | 2255 | skipping = FALSE; |
252b5132 RH |
2256 | } |
2257 | ||
2258 | iline.l_addr.l_symndx = indx; | |
2259 | } | |
2260 | ||
b545f675 ILT |
2261 | if (!skipping) |
2262 | { | |
8b956130 | 2263 | bfd_coff_swap_lineno_out (output_bfd, &iline, oeline); |
b545f675 ILT |
2264 | oeline += linesz; |
2265 | } | |
252b5132 RH |
2266 | } |
2267 | ||
dc810e39 AM |
2268 | pos = o->output_section->line_filepos; |
2269 | pos += o->output_section->lineno_count * linesz; | |
2270 | amt = oeline - finfo->linenos; | |
2271 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
2272 | || bfd_bwrite (finfo->linenos, amt, output_bfd) != amt) | |
b34976b6 | 2273 | return FALSE; |
252b5132 | 2274 | |
dc810e39 | 2275 | o->output_section->lineno_count += amt / linesz; |
252b5132 RH |
2276 | } |
2277 | } | |
2278 | ||
2279 | /* If we swapped out a C_FILE symbol, guess that the next C_FILE | |
2280 | symbol will be the first symbol in the next input file. In the | |
2281 | normal case, this will save us from writing out the C_FILE symbol | |
2282 | again. */ | |
2283 | if (finfo->last_file_index != -1 | |
2284 | && (bfd_size_type) finfo->last_file_index >= syment_base) | |
2285 | { | |
2286 | finfo->last_file.n_value = output_index; | |
8b956130 NC |
2287 | bfd_coff_swap_sym_out (output_bfd, &finfo->last_file, |
2288 | (finfo->outsyms | |
2289 | + ((finfo->last_file_index - syment_base) | |
2290 | * osymesz))); | |
252b5132 RH |
2291 | } |
2292 | ||
2293 | /* Write the modified symbols to the output file. */ | |
2294 | if (outsym > finfo->outsyms) | |
2295 | { | |
dc810e39 AM |
2296 | file_ptr pos; |
2297 | bfd_size_type amt; | |
2298 | ||
2299 | pos = obj_sym_filepos (output_bfd) + syment_base * osymesz; | |
2300 | amt = outsym - finfo->outsyms; | |
2301 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
2302 | || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt) | |
b34976b6 | 2303 | return FALSE; |
252b5132 RH |
2304 | |
2305 | BFD_ASSERT ((obj_raw_syment_count (output_bfd) | |
2306 | + (outsym - finfo->outsyms) / osymesz) | |
2307 | == output_index); | |
2308 | ||
2309 | obj_raw_syment_count (output_bfd) = output_index; | |
2310 | } | |
2311 | ||
2312 | /* Relocate the contents of each section. */ | |
2313 | adjust_symndx = coff_backend_info (input_bfd)->_bfd_coff_adjust_symndx; | |
2314 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
2315 | { | |
2316 | bfd_byte *contents; | |
2317 | struct coff_section_tdata *secdata; | |
2318 | ||
2319 | if (! o->linker_mark) | |
8b956130 NC |
2320 | /* This section was omitted from the link. */ |
2321 | continue; | |
252b5132 | 2322 | |
3722b82f AM |
2323 | if ((o->flags & SEC_LINKER_CREATED) != 0) |
2324 | continue; | |
2325 | ||
252b5132 | 2326 | if ((o->flags & SEC_HAS_CONTENTS) == 0 |
eea6121a | 2327 | || (o->size == 0 && (o->flags & SEC_RELOC) == 0)) |
252b5132 RH |
2328 | { |
2329 | if ((o->flags & SEC_RELOC) != 0 | |
2330 | && o->reloc_count != 0) | |
2331 | { | |
d003868e AM |
2332 | (*_bfd_error_handler) |
2333 | (_("%B: relocs in section `%A', but it has no contents"), | |
2334 | input_bfd, o); | |
252b5132 | 2335 | bfd_set_error (bfd_error_no_contents); |
b34976b6 | 2336 | return FALSE; |
252b5132 RH |
2337 | } |
2338 | ||
2339 | continue; | |
2340 | } | |
2341 | ||
2342 | secdata = coff_section_data (input_bfd, o); | |
2343 | if (secdata != NULL && secdata->contents != NULL) | |
2344 | contents = secdata->contents; | |
2345 | else | |
2346 | { | |
eea6121a AM |
2347 | bfd_size_type x = o->rawsize ? o->rawsize : o->size; |
2348 | if (! bfd_get_section_contents (input_bfd, o, finfo->contents, 0, x)) | |
b34976b6 | 2349 | return FALSE; |
252b5132 RH |
2350 | contents = finfo->contents; |
2351 | } | |
2352 | ||
2353 | if ((o->flags & SEC_RELOC) != 0) | |
2354 | { | |
2355 | int target_index; | |
2356 | struct internal_reloc *internal_relocs; | |
2357 | struct internal_reloc *irel; | |
2358 | ||
2359 | /* Read in the relocs. */ | |
2360 | target_index = o->output_section->target_index; | |
2361 | internal_relocs = (_bfd_coff_read_internal_relocs | |
b34976b6 | 2362 | (input_bfd, o, FALSE, finfo->external_relocs, |
1049f94e AM |
2363 | finfo->info->relocatable, |
2364 | (finfo->info->relocatable | |
252b5132 RH |
2365 | ? (finfo->section_info[target_index].relocs |
2366 | + o->output_section->reloc_count) | |
2367 | : finfo->internal_relocs))); | |
2368 | if (internal_relocs == NULL) | |
b34976b6 | 2369 | return FALSE; |
252b5132 | 2370 | |
730035f7 DK |
2371 | /* Run through the relocs looking for relocs against symbols |
2372 | coming from discarded sections and complain about them. */ | |
2373 | irel = internal_relocs; | |
2374 | for (; irel < &internal_relocs[o->reloc_count]; irel++) | |
2375 | { | |
2376 | struct coff_link_hash_entry *h; | |
2377 | asection *ps = NULL; | |
2378 | long symndx = irel->r_symndx; | |
2379 | if (symndx < 0) | |
2380 | continue; | |
2381 | h = obj_coff_sym_hashes (input_bfd)[symndx]; | |
2382 | if (h == NULL) | |
2383 | continue; | |
2384 | while (h->root.type == bfd_link_hash_indirect | |
2385 | || h->root.type == bfd_link_hash_warning) | |
2386 | h = (struct coff_link_hash_entry *) h->root.u.i.link; | |
2387 | if (h->root.type == bfd_link_hash_defined | |
2388 | || h->root.type == bfd_link_hash_defweak) | |
2389 | ps = h->root.u.def.section; | |
2390 | if (ps == NULL) | |
2391 | continue; | |
2392 | /* Complain if definition comes from an excluded section. */ | |
2393 | if (ps->flags & SEC_EXCLUDE) | |
2394 | (*finfo->info->callbacks->einfo) | |
2395 | (_("%X`%s' referenced in section `%A' of %B: " | |
2396 | "defined in discarded section `%A' of %B\n"), | |
2397 | h->root.root.string, o, input_bfd, ps, ps->owner); | |
2398 | } | |
2399 | ||
252b5132 RH |
2400 | /* Call processor specific code to relocate the section |
2401 | contents. */ | |
2402 | if (! bfd_coff_relocate_section (output_bfd, finfo->info, | |
2403 | input_bfd, o, | |
2404 | contents, | |
2405 | internal_relocs, | |
2406 | finfo->internal_syms, | |
2407 | finfo->sec_ptrs)) | |
b34976b6 | 2408 | return FALSE; |
252b5132 | 2409 | |
1049f94e | 2410 | if (finfo->info->relocatable) |
252b5132 RH |
2411 | { |
2412 | bfd_vma offset; | |
2413 | struct internal_reloc *irelend; | |
2414 | struct coff_link_hash_entry **rel_hash; | |
2415 | ||
2416 | offset = o->output_section->vma + o->output_offset - o->vma; | |
2417 | irel = internal_relocs; | |
2418 | irelend = irel + o->reloc_count; | |
2419 | rel_hash = (finfo->section_info[target_index].rel_hashes | |
2420 | + o->output_section->reloc_count); | |
2421 | for (; irel < irelend; irel++, rel_hash++) | |
2422 | { | |
2423 | struct coff_link_hash_entry *h; | |
b34976b6 | 2424 | bfd_boolean adjusted; |
252b5132 RH |
2425 | |
2426 | *rel_hash = NULL; | |
2427 | ||
2428 | /* Adjust the reloc address and symbol index. */ | |
252b5132 RH |
2429 | irel->r_vaddr += offset; |
2430 | ||
2431 | if (irel->r_symndx == -1) | |
2432 | continue; | |
2433 | ||
2434 | if (adjust_symndx) | |
2435 | { | |
2436 | if (! (*adjust_symndx) (output_bfd, finfo->info, | |
2437 | input_bfd, o, irel, | |
2438 | &adjusted)) | |
b34976b6 | 2439 | return FALSE; |
252b5132 RH |
2440 | if (adjusted) |
2441 | continue; | |
2442 | } | |
2443 | ||
2444 | h = obj_coff_sym_hashes (input_bfd)[irel->r_symndx]; | |
2445 | if (h != NULL) | |
2446 | { | |
2447 | /* This is a global symbol. */ | |
2448 | if (h->indx >= 0) | |
2449 | irel->r_symndx = h->indx; | |
2450 | else | |
2451 | { | |
2452 | /* This symbol is being written at the end | |
2453 | of the file, and we do not yet know the | |
2454 | symbol index. We save the pointer to the | |
2455 | hash table entry in the rel_hash list. | |
2456 | We set the indx field to -2 to indicate | |
2457 | that this symbol must not be stripped. */ | |
2458 | *rel_hash = h; | |
2459 | h->indx = -2; | |
2460 | } | |
2461 | } | |
2462 | else | |
2463 | { | |
2464 | long indx; | |
2465 | ||
2466 | indx = finfo->sym_indices[irel->r_symndx]; | |
2467 | if (indx != -1) | |
2468 | irel->r_symndx = indx; | |
2469 | else | |
2470 | { | |
2471 | struct internal_syment *is; | |
2472 | const char *name; | |
2473 | char buf[SYMNMLEN + 1]; | |
2474 | ||
2475 | /* This reloc is against a symbol we are | |
2476 | stripping. This should have been handled | |
2477 | by the 'dont_skip_symbol' code in the while | |
244148ad | 2478 | loop at the top of this function. */ |
252b5132 RH |
2479 | is = finfo->internal_syms + irel->r_symndx; |
2480 | ||
2481 | name = (_bfd_coff_internal_syment_name | |
2482 | (input_bfd, is, buf)); | |
2483 | if (name == NULL) | |
b34976b6 | 2484 | return FALSE; |
252b5132 RH |
2485 | |
2486 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
2487 | (finfo->info, name, input_bfd, o, | |
2488 | irel->r_vaddr))) | |
b34976b6 | 2489 | return FALSE; |
252b5132 RH |
2490 | } |
2491 | } | |
2492 | } | |
2493 | ||
2494 | o->output_section->reloc_count += o->reloc_count; | |
2495 | } | |
2496 | } | |
2497 | ||
2498 | /* Write out the modified section contents. */ | |
2499 | if (secdata == NULL || secdata->stab_info == NULL) | |
2500 | { | |
dc810e39 | 2501 | file_ptr loc = o->output_offset * bfd_octets_per_byte (output_bfd); |
252b5132 | 2502 | if (! bfd_set_section_contents (output_bfd, o->output_section, |
eea6121a | 2503 | contents, loc, o->size)) |
b34976b6 | 2504 | return FALSE; |
252b5132 RH |
2505 | } |
2506 | else | |
2507 | { | |
2508 | if (! (_bfd_write_section_stabs | |
2509 | (output_bfd, &coff_hash_table (finfo->info)->stab_info, | |
2510 | o, &secdata->stab_info, contents))) | |
b34976b6 | 2511 | return FALSE; |
252b5132 RH |
2512 | } |
2513 | } | |
2514 | ||
8b956130 NC |
2515 | if (! finfo->info->keep_memory |
2516 | && ! _bfd_coff_free_symbols (input_bfd)) | |
2517 | return FALSE; | |
252b5132 | 2518 | |
b34976b6 | 2519 | return TRUE; |
252b5132 RH |
2520 | } |
2521 | ||
7686d77d | 2522 | /* Write out a global symbol. Called via bfd_hash_traverse. */ |
252b5132 | 2523 | |
b34976b6 | 2524 | bfd_boolean |
7686d77d | 2525 | _bfd_coff_write_global_sym (struct bfd_hash_entry *bh, void *data) |
252b5132 | 2526 | { |
7686d77d | 2527 | struct coff_link_hash_entry *h = (struct coff_link_hash_entry *) bh; |
252b5132 RH |
2528 | struct coff_final_link_info *finfo = (struct coff_final_link_info *) data; |
2529 | bfd *output_bfd; | |
2530 | struct internal_syment isym; | |
2531 | bfd_size_type symesz; | |
2532 | unsigned int i; | |
dc810e39 | 2533 | file_ptr pos; |
252b5132 RH |
2534 | |
2535 | output_bfd = finfo->output_bfd; | |
2536 | ||
e92d460e AM |
2537 | if (h->root.type == bfd_link_hash_warning) |
2538 | { | |
2539 | h = (struct coff_link_hash_entry *) h->root.u.i.link; | |
2540 | if (h->root.type == bfd_link_hash_new) | |
b34976b6 | 2541 | return TRUE; |
e92d460e AM |
2542 | } |
2543 | ||
252b5132 | 2544 | if (h->indx >= 0) |
b34976b6 | 2545 | return TRUE; |
252b5132 RH |
2546 | |
2547 | if (h->indx != -2 | |
2548 | && (finfo->info->strip == strip_all | |
2549 | || (finfo->info->strip == strip_some | |
2550 | && (bfd_hash_lookup (finfo->info->keep_hash, | |
b34976b6 | 2551 | h->root.root.string, FALSE, FALSE) |
252b5132 | 2552 | == NULL)))) |
b34976b6 | 2553 | return TRUE; |
252b5132 RH |
2554 | |
2555 | switch (h->root.type) | |
2556 | { | |
2557 | default: | |
2558 | case bfd_link_hash_new: | |
e92d460e | 2559 | case bfd_link_hash_warning: |
252b5132 | 2560 | abort (); |
b34976b6 | 2561 | return FALSE; |
252b5132 RH |
2562 | |
2563 | case bfd_link_hash_undefined: | |
2564 | case bfd_link_hash_undefweak: | |
2565 | isym.n_scnum = N_UNDEF; | |
2566 | isym.n_value = 0; | |
2567 | break; | |
2568 | ||
2569 | case bfd_link_hash_defined: | |
2570 | case bfd_link_hash_defweak: | |
2571 | { | |
2572 | asection *sec; | |
2573 | ||
2574 | sec = h->root.u.def.section->output_section; | |
2575 | if (bfd_is_abs_section (sec)) | |
2576 | isym.n_scnum = N_ABS; | |
2577 | else | |
2578 | isym.n_scnum = sec->target_index; | |
2579 | isym.n_value = (h->root.u.def.value | |
2580 | + h->root.u.def.section->output_offset); | |
2581 | if (! obj_pe (finfo->output_bfd)) | |
2582 | isym.n_value += sec->vma; | |
2583 | } | |
2584 | break; | |
2585 | ||
2586 | case bfd_link_hash_common: | |
2587 | isym.n_scnum = N_UNDEF; | |
2588 | isym.n_value = h->root.u.c.size; | |
2589 | break; | |
2590 | ||
2591 | case bfd_link_hash_indirect: | |
252b5132 | 2592 | /* Just ignore these. They can't be handled anyhow. */ |
b34976b6 | 2593 | return TRUE; |
252b5132 RH |
2594 | } |
2595 | ||
2596 | if (strlen (h->root.root.string) <= SYMNMLEN) | |
2597 | strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN); | |
2598 | else | |
2599 | { | |
b34976b6 | 2600 | bfd_boolean hash; |
252b5132 RH |
2601 | bfd_size_type indx; |
2602 | ||
b34976b6 | 2603 | hash = TRUE; |
252b5132 | 2604 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) |
b34976b6 | 2605 | hash = FALSE; |
252b5132 | 2606 | indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, hash, |
b34976b6 | 2607 | FALSE); |
252b5132 RH |
2608 | if (indx == (bfd_size_type) -1) |
2609 | { | |
b34976b6 AM |
2610 | finfo->failed = TRUE; |
2611 | return FALSE; | |
252b5132 RH |
2612 | } |
2613 | isym._n._n_n._n_zeroes = 0; | |
2614 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
2615 | } | |
2616 | ||
96d56e9f | 2617 | isym.n_sclass = h->symbol_class; |
252b5132 RH |
2618 | isym.n_type = h->type; |
2619 | ||
2620 | if (isym.n_sclass == C_NULL) | |
2621 | isym.n_sclass = C_EXT; | |
2622 | ||
2623 | /* If doing task linking and this is the pass where we convert | |
2624 | defined globals to statics, then do that conversion now. If the | |
2625 | symbol is not being converted, just ignore it and it will be | |
e4202681 | 2626 | output during a later pass. */ |
252b5132 RH |
2627 | if (finfo->global_to_static) |
2628 | { | |
e4202681 | 2629 | if (! IS_EXTERNAL (output_bfd, isym)) |
b34976b6 | 2630 | return TRUE; |
e4202681 | 2631 | |
252b5132 RH |
2632 | isym.n_sclass = C_STAT; |
2633 | } | |
2634 | ||
5c4491d3 | 2635 | /* When a weak symbol is not overridden by a strong one, |
e4202681 | 2636 | turn it into an external symbol when not building a |
1049f94e | 2637 | shared or relocatable object. */ |
e4202681 | 2638 | if (! finfo->info->shared |
1049f94e | 2639 | && ! finfo->info->relocatable |
e4202681 NC |
2640 | && IS_WEAK_EXTERNAL (finfo->output_bfd, isym)) |
2641 | isym.n_sclass = C_EXT; | |
2642 | ||
252b5132 | 2643 | isym.n_numaux = h->numaux; |
244148ad | 2644 | |
8b956130 | 2645 | bfd_coff_swap_sym_out (output_bfd, &isym, finfo->outsyms); |
252b5132 RH |
2646 | |
2647 | symesz = bfd_coff_symesz (output_bfd); | |
2648 | ||
dc810e39 AM |
2649 | pos = obj_sym_filepos (output_bfd); |
2650 | pos += obj_raw_syment_count (output_bfd) * symesz; | |
2651 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
2652 | || bfd_bwrite (finfo->outsyms, symesz, output_bfd) != symesz) | |
252b5132 | 2653 | { |
b34976b6 AM |
2654 | finfo->failed = TRUE; |
2655 | return FALSE; | |
252b5132 RH |
2656 | } |
2657 | ||
2658 | h->indx = obj_raw_syment_count (output_bfd); | |
2659 | ||
2660 | ++obj_raw_syment_count (output_bfd); | |
2661 | ||
2c546cd8 ILT |
2662 | /* Write out any associated aux entries. Most of the aux entries |
2663 | will have been modified in _bfd_coff_link_input_bfd. We have to | |
2664 | handle section aux entries here, now that we have the final | |
2665 | relocation and line number counts. */ | |
252b5132 RH |
2666 | for (i = 0; i < isym.n_numaux; i++) |
2667 | { | |
2c546cd8 ILT |
2668 | union internal_auxent *auxp; |
2669 | ||
2670 | auxp = h->aux + i; | |
2671 | ||
2672 | /* Look for a section aux entry here using the same tests that | |
2673 | coff_swap_aux_out uses. */ | |
2674 | if (i == 0 | |
2675 | && (isym.n_sclass == C_STAT | |
2676 | || isym.n_sclass == C_HIDDEN) | |
2677 | && isym.n_type == T_NULL | |
2678 | && (h->root.type == bfd_link_hash_defined | |
2679 | || h->root.type == bfd_link_hash_defweak)) | |
2680 | { | |
2681 | asection *sec; | |
2682 | ||
2683 | sec = h->root.u.def.section->output_section; | |
2684 | if (sec != NULL) | |
2685 | { | |
eea6121a | 2686 | auxp->x_scn.x_scnlen = sec->size; |
2c546cd8 ILT |
2687 | |
2688 | /* For PE, an overflow on the final link reportedly does | |
2689 | not matter. FIXME: Why not? */ | |
2c546cd8 ILT |
2690 | if (sec->reloc_count > 0xffff |
2691 | && (! obj_pe (output_bfd) | |
1049f94e | 2692 | || finfo->info->relocatable)) |
2c546cd8 ILT |
2693 | (*_bfd_error_handler) |
2694 | (_("%s: %s: reloc overflow: 0x%lx > 0xffff"), | |
2695 | bfd_get_filename (output_bfd), | |
2696 | bfd_get_section_name (output_bfd, sec), | |
2697 | sec->reloc_count); | |
2698 | ||
2699 | if (sec->lineno_count > 0xffff | |
2700 | && (! obj_pe (output_bfd) | |
1049f94e | 2701 | || finfo->info->relocatable)) |
2c546cd8 ILT |
2702 | (*_bfd_error_handler) |
2703 | (_("%s: warning: %s: line number overflow: 0x%lx > 0xffff"), | |
2704 | bfd_get_filename (output_bfd), | |
2705 | bfd_get_section_name (output_bfd, sec), | |
2706 | sec->lineno_count); | |
2707 | ||
2708 | auxp->x_scn.x_nreloc = sec->reloc_count; | |
2709 | auxp->x_scn.x_nlinno = sec->lineno_count; | |
2710 | auxp->x_scn.x_checksum = 0; | |
2711 | auxp->x_scn.x_associated = 0; | |
2712 | auxp->x_scn.x_comdat = 0; | |
2713 | } | |
2714 | } | |
2715 | ||
8b956130 | 2716 | bfd_coff_swap_aux_out (output_bfd, auxp, isym.n_type, |
dc810e39 | 2717 | isym.n_sclass, (int) i, isym.n_numaux, |
8b956130 | 2718 | finfo->outsyms); |
dc810e39 | 2719 | if (bfd_bwrite (finfo->outsyms, symesz, output_bfd) != symesz) |
252b5132 | 2720 | { |
b34976b6 AM |
2721 | finfo->failed = TRUE; |
2722 | return FALSE; | |
252b5132 RH |
2723 | } |
2724 | ++obj_raw_syment_count (output_bfd); | |
2725 | } | |
2726 | ||
b34976b6 | 2727 | return TRUE; |
252b5132 RH |
2728 | } |
2729 | ||
2730 | /* Write out task global symbols, converting them to statics. Called | |
2731 | via coff_link_hash_traverse. Calls bfd_coff_write_global_sym to do | |
244148ad | 2732 | the dirty work, if the symbol we are processing needs conversion. */ |
252b5132 | 2733 | |
b34976b6 | 2734 | bfd_boolean |
8b956130 | 2735 | _bfd_coff_write_task_globals (struct coff_link_hash_entry *h, void *data) |
252b5132 RH |
2736 | { |
2737 | struct coff_final_link_info *finfo = (struct coff_final_link_info *) data; | |
b34976b6 AM |
2738 | bfd_boolean rtnval = TRUE; |
2739 | bfd_boolean save_global_to_static; | |
252b5132 | 2740 | |
e92d460e AM |
2741 | if (h->root.type == bfd_link_hash_warning) |
2742 | h = (struct coff_link_hash_entry *) h->root.u.i.link; | |
2743 | ||
252b5132 RH |
2744 | if (h->indx < 0) |
2745 | { | |
2746 | switch (h->root.type) | |
2747 | { | |
2748 | case bfd_link_hash_defined: | |
2749 | case bfd_link_hash_defweak: | |
2750 | save_global_to_static = finfo->global_to_static; | |
b34976b6 | 2751 | finfo->global_to_static = TRUE; |
7686d77d | 2752 | rtnval = _bfd_coff_write_global_sym (&h->root.root, data); |
252b5132 RH |
2753 | finfo->global_to_static = save_global_to_static; |
2754 | break; | |
2755 | default: | |
2756 | break; | |
2757 | } | |
2758 | } | |
2759 | return (rtnval); | |
2760 | } | |
2761 | ||
2762 | /* Handle a link order which is supposed to generate a reloc. */ | |
2763 | ||
b34976b6 | 2764 | bfd_boolean |
8b956130 NC |
2765 | _bfd_coff_reloc_link_order (bfd *output_bfd, |
2766 | struct coff_final_link_info *finfo, | |
2767 | asection *output_section, | |
2768 | struct bfd_link_order *link_order) | |
252b5132 RH |
2769 | { |
2770 | reloc_howto_type *howto; | |
2771 | struct internal_reloc *irel; | |
2772 | struct coff_link_hash_entry **rel_hash_ptr; | |
2773 | ||
2774 | howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
2775 | if (howto == NULL) | |
2776 | { | |
2777 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2778 | return FALSE; |
252b5132 RH |
2779 | } |
2780 | ||
2781 | if (link_order->u.reloc.p->addend != 0) | |
2782 | { | |
2783 | bfd_size_type size; | |
2784 | bfd_byte *buf; | |
2785 | bfd_reloc_status_type rstat; | |
b34976b6 | 2786 | bfd_boolean ok; |
dc810e39 | 2787 | file_ptr loc; |
252b5132 RH |
2788 | |
2789 | size = bfd_get_reloc_size (howto); | |
a50b1753 | 2790 | buf = (bfd_byte *) bfd_zmalloc (size); |
252b5132 | 2791 | if (buf == NULL) |
b34976b6 | 2792 | return FALSE; |
252b5132 RH |
2793 | |
2794 | rstat = _bfd_relocate_contents (howto, output_bfd, | |
dc810e39 AM |
2795 | (bfd_vma) link_order->u.reloc.p->addend,\ |
2796 | buf); | |
252b5132 RH |
2797 | switch (rstat) |
2798 | { | |
2799 | case bfd_reloc_ok: | |
2800 | break; | |
2801 | default: | |
2802 | case bfd_reloc_outofrange: | |
2803 | abort (); | |
2804 | case bfd_reloc_overflow: | |
2805 | if (! ((*finfo->info->callbacks->reloc_overflow) | |
dfeffb9f | 2806 | (finfo->info, NULL, |
252b5132 RH |
2807 | (link_order->type == bfd_section_reloc_link_order |
2808 | ? bfd_section_name (output_bfd, | |
2809 | link_order->u.reloc.p->u.section) | |
2810 | : link_order->u.reloc.p->u.name), | |
2811 | howto->name, link_order->u.reloc.p->addend, | |
2812 | (bfd *) NULL, (asection *) NULL, (bfd_vma) 0))) | |
2813 | { | |
2814 | free (buf); | |
b34976b6 | 2815 | return FALSE; |
252b5132 RH |
2816 | } |
2817 | break; | |
2818 | } | |
dc810e39 | 2819 | loc = link_order->offset * bfd_octets_per_byte (output_bfd); |
8b956130 | 2820 | ok = bfd_set_section_contents (output_bfd, output_section, buf, |
dc810e39 | 2821 | loc, size); |
252b5132 RH |
2822 | free (buf); |
2823 | if (! ok) | |
b34976b6 | 2824 | return FALSE; |
252b5132 RH |
2825 | } |
2826 | ||
2827 | /* Store the reloc information in the right place. It will get | |
2828 | swapped and written out at the end of the final_link routine. */ | |
252b5132 RH |
2829 | irel = (finfo->section_info[output_section->target_index].relocs |
2830 | + output_section->reloc_count); | |
2831 | rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes | |
2832 | + output_section->reloc_count); | |
2833 | ||
2834 | memset (irel, 0, sizeof (struct internal_reloc)); | |
2835 | *rel_hash_ptr = NULL; | |
2836 | ||
2837 | irel->r_vaddr = output_section->vma + link_order->offset; | |
2838 | ||
2839 | if (link_order->type == bfd_section_reloc_link_order) | |
2840 | { | |
2841 | /* We need to somehow locate a symbol in the right section. The | |
2842 | symbol must either have a value of zero, or we must adjust | |
2843 | the addend by the value of the symbol. FIXME: Write this | |
2844 | when we need it. The old linker couldn't handle this anyhow. */ | |
2845 | abort (); | |
2846 | *rel_hash_ptr = NULL; | |
2847 | irel->r_symndx = 0; | |
2848 | } | |
2849 | else | |
2850 | { | |
2851 | struct coff_link_hash_entry *h; | |
2852 | ||
2853 | h = ((struct coff_link_hash_entry *) | |
2854 | bfd_wrapped_link_hash_lookup (output_bfd, finfo->info, | |
2855 | link_order->u.reloc.p->u.name, | |
b34976b6 | 2856 | FALSE, FALSE, TRUE)); |
252b5132 RH |
2857 | if (h != NULL) |
2858 | { | |
2859 | if (h->indx >= 0) | |
2860 | irel->r_symndx = h->indx; | |
2861 | else | |
2862 | { | |
2863 | /* Set the index to -2 to force this symbol to get | |
2864 | written out. */ | |
2865 | h->indx = -2; | |
2866 | *rel_hash_ptr = h; | |
2867 | irel->r_symndx = 0; | |
2868 | } | |
2869 | } | |
2870 | else | |
2871 | { | |
2872 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
2873 | (finfo->info, link_order->u.reloc.p->u.name, (bfd *) NULL, | |
2874 | (asection *) NULL, (bfd_vma) 0))) | |
b34976b6 | 2875 | return FALSE; |
252b5132 RH |
2876 | irel->r_symndx = 0; |
2877 | } | |
2878 | } | |
2879 | ||
2880 | /* FIXME: Is this always right? */ | |
2881 | irel->r_type = howto->type; | |
2882 | ||
2883 | /* r_size is only used on the RS/6000, which needs its own linker | |
2884 | routines anyhow. r_extern is only used for ECOFF. */ | |
2885 | ||
2886 | /* FIXME: What is the right value for r_offset? Is zero OK? */ | |
252b5132 RH |
2887 | ++output_section->reloc_count; |
2888 | ||
b34976b6 | 2889 | return TRUE; |
252b5132 RH |
2890 | } |
2891 | ||
2892 | /* A basic reloc handling routine which may be used by processors with | |
2893 | simple relocs. */ | |
2894 | ||
b34976b6 | 2895 | bfd_boolean |
8b956130 NC |
2896 | _bfd_coff_generic_relocate_section (bfd *output_bfd, |
2897 | struct bfd_link_info *info, | |
2898 | bfd *input_bfd, | |
2899 | asection *input_section, | |
2900 | bfd_byte *contents, | |
2901 | struct internal_reloc *relocs, | |
2902 | struct internal_syment *syms, | |
2903 | asection **sections) | |
252b5132 RH |
2904 | { |
2905 | struct internal_reloc *rel; | |
2906 | struct internal_reloc *relend; | |
2907 | ||
2908 | rel = relocs; | |
2909 | relend = rel + input_section->reloc_count; | |
2910 | for (; rel < relend; rel++) | |
2911 | { | |
2912 | long symndx; | |
2913 | struct coff_link_hash_entry *h; | |
2914 | struct internal_syment *sym; | |
2915 | bfd_vma addend; | |
2916 | bfd_vma val; | |
2917 | reloc_howto_type *howto; | |
2918 | bfd_reloc_status_type rstat; | |
2919 | ||
2920 | symndx = rel->r_symndx; | |
2921 | ||
2922 | if (symndx == -1) | |
2923 | { | |
2924 | h = NULL; | |
2925 | sym = NULL; | |
2926 | } | |
75987f83 ILT |
2927 | else if (symndx < 0 |
2928 | || (unsigned long) symndx >= obj_raw_syment_count (input_bfd)) | |
2929 | { | |
2930 | (*_bfd_error_handler) | |
d003868e | 2931 | ("%B: illegal symbol index %ld in relocs", input_bfd, symndx); |
b34976b6 | 2932 | return FALSE; |
75987f83 | 2933 | } |
252b5132 | 2934 | else |
244148ad | 2935 | { |
252b5132 RH |
2936 | h = obj_coff_sym_hashes (input_bfd)[symndx]; |
2937 | sym = syms + symndx; | |
2938 | } | |
2939 | ||
2940 | /* COFF treats common symbols in one of two ways. Either the | |
2941 | size of the symbol is included in the section contents, or it | |
2942 | is not. We assume that the size is not included, and force | |
2943 | the rtype_to_howto function to adjust the addend as needed. */ | |
252b5132 RH |
2944 | if (sym != NULL && sym->n_scnum != 0) |
2945 | addend = - sym->n_value; | |
2946 | else | |
2947 | addend = 0; | |
2948 | ||
252b5132 RH |
2949 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, |
2950 | sym, &addend); | |
2951 | if (howto == NULL) | |
b34976b6 | 2952 | return FALSE; |
252b5132 | 2953 | |
1049f94e | 2954 | /* If we are doing a relocatable link, then we can just ignore |
252b5132 | 2955 | a PC relative reloc that is pcrel_offset. It will already |
1049f94e | 2956 | have the correct value. If this is not a relocatable link, |
252b5132 RH |
2957 | then we should ignore the symbol value. */ |
2958 | if (howto->pc_relative && howto->pcrel_offset) | |
2959 | { | |
1049f94e | 2960 | if (info->relocatable) |
252b5132 RH |
2961 | continue; |
2962 | if (sym != NULL && sym->n_scnum != 0) | |
2963 | addend += sym->n_value; | |
2964 | } | |
2965 | ||
2966 | val = 0; | |
2967 | ||
2968 | if (h == NULL) | |
2969 | { | |
2970 | asection *sec; | |
2971 | ||
2972 | if (symndx == -1) | |
2973 | { | |
2974 | sec = bfd_abs_section_ptr; | |
2975 | val = 0; | |
2976 | } | |
2977 | else | |
2978 | { | |
2979 | sec = sections[symndx]; | |
2980 | val = (sec->output_section->vma | |
2981 | + sec->output_offset | |
2982 | + sym->n_value); | |
2983 | if (! obj_pe (input_bfd)) | |
2984 | val -= sec->vma; | |
2985 | } | |
2986 | } | |
2987 | else | |
2988 | { | |
2989 | if (h->root.type == bfd_link_hash_defined | |
2990 | || h->root.type == bfd_link_hash_defweak) | |
2991 | { | |
c87db184 | 2992 | /* Defined weak symbols are a GNU extension. */ |
252b5132 RH |
2993 | asection *sec; |
2994 | ||
2995 | sec = h->root.u.def.section; | |
2996 | val = (h->root.u.def.value | |
2997 | + sec->output_section->vma | |
2998 | + sec->output_offset); | |
c87db184 | 2999 | } |
252b5132 | 3000 | |
bc7a577d | 3001 | else if (h->root.type == bfd_link_hash_undefweak) |
c87db184 | 3002 | { |
96d56e9f | 3003 | if (h->symbol_class == C_NT_WEAK && h->numaux == 1) |
c87db184 CF |
3004 | { |
3005 | /* See _Microsoft Portable Executable and Common Object | |
0c429e07 NC |
3006 | File Format Specification_, section 5.5.3. |
3007 | Note that weak symbols without aux records are a GNU | |
3008 | extension. | |
3009 | FIXME: All weak externals are treated as having | |
27198fa9 DS |
3010 | characteristic IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY (1). |
3011 | These behave as per SVR4 ABI: A library member | |
3012 | will resolve a weak external only if a normal | |
3013 | external causes the library member to be linked. | |
3014 | See also linker.c: generic_link_check_archive_element. */ | |
c87db184 CF |
3015 | asection *sec; |
3016 | struct coff_link_hash_entry *h2 = | |
eb503a00 | 3017 | h->auxbfd->tdata.coff_obj_data->sym_hashes[ |
c87db184 CF |
3018 | h->aux->x_sym.x_tagndx.l]; |
3019 | ||
0c429e07 NC |
3020 | if (!h2 || h2->root.type == bfd_link_hash_undefined) |
3021 | { | |
3022 | sec = bfd_abs_section_ptr; | |
3023 | val = 0; | |
3024 | } | |
3025 | else | |
3026 | { | |
3027 | sec = h2->root.u.def.section; | |
3028 | val = h2->root.u.def.value | |
3029 | + sec->output_section->vma + sec->output_offset; | |
3030 | } | |
c87db184 CF |
3031 | } |
3032 | else | |
0c429e07 | 3033 | /* This is a GNU extension. */ |
c87db184 CF |
3034 | val = 0; |
3035 | } | |
bc7a577d | 3036 | |
1049f94e | 3037 | else if (! info->relocatable) |
252b5132 RH |
3038 | { |
3039 | if (! ((*info->callbacks->undefined_symbol) | |
3040 | (info, h->root.root.string, input_bfd, input_section, | |
b34976b6 AM |
3041 | rel->r_vaddr - input_section->vma, TRUE))) |
3042 | return FALSE; | |
252b5132 RH |
3043 | } |
3044 | } | |
3045 | ||
3046 | if (info->base_file) | |
3047 | { | |
244148ad | 3048 | /* Emit a reloc if the backend thinks it needs it. */ |
252b5132 RH |
3049 | if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto)) |
3050 | { | |
3051 | /* Relocation to a symbol in a section which isn't | |
3052 | absolute. We output the address here to a file. | |
3053 | This file is then read by dlltool when generating the | |
3054 | reloc section. Note that the base file is not | |
d078078d KT |
3055 | portable between systems. We write out a bfd_vma here, |
3056 | and dlltool reads in a bfd_vma. */ | |
3057 | bfd_vma addr = (rel->r_vaddr | |
244148ad KH |
3058 | - input_section->vma |
3059 | + input_section->output_offset | |
252b5132 RH |
3060 | + input_section->output_section->vma); |
3061 | if (coff_data (output_bfd)->pe) | |
3062 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
d078078d KT |
3063 | if (fwrite (&addr, 1, sizeof (bfd_vma), (FILE *) info->base_file) |
3064 | != sizeof (bfd_vma)) | |
252b5132 RH |
3065 | { |
3066 | bfd_set_error (bfd_error_system_call); | |
b34976b6 | 3067 | return FALSE; |
252b5132 RH |
3068 | } |
3069 | } | |
3070 | } | |
244148ad | 3071 | |
252b5132 RH |
3072 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3073 | contents, | |
3074 | rel->r_vaddr - input_section->vma, | |
3075 | val, addend); | |
3076 | ||
3077 | switch (rstat) | |
3078 | { | |
3079 | default: | |
3080 | abort (); | |
3081 | case bfd_reloc_ok: | |
3082 | break; | |
3083 | case bfd_reloc_outofrange: | |
3084 | (*_bfd_error_handler) | |
d003868e AM |
3085 | (_("%B: bad reloc address 0x%lx in section `%A'"), |
3086 | input_bfd, input_section, (unsigned long) rel->r_vaddr); | |
b34976b6 | 3087 | return FALSE; |
252b5132 RH |
3088 | case bfd_reloc_overflow: |
3089 | { | |
3090 | const char *name; | |
3091 | char buf[SYMNMLEN + 1]; | |
3092 | ||
3093 | if (symndx == -1) | |
3094 | name = "*ABS*"; | |
3095 | else if (h != NULL) | |
dfeffb9f | 3096 | name = NULL; |
252b5132 RH |
3097 | else |
3098 | { | |
3099 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); | |
3100 | if (name == NULL) | |
b34976b6 | 3101 | return FALSE; |
252b5132 RH |
3102 | } |
3103 | ||
3104 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
3105 | (info, (h ? &h->root : NULL), name, howto->name, |
3106 | (bfd_vma) 0, input_bfd, input_section, | |
3107 | rel->r_vaddr - input_section->vma))) | |
b34976b6 | 3108 | return FALSE; |
252b5132 RH |
3109 | } |
3110 | } | |
3111 | } | |
b34976b6 | 3112 | return TRUE; |
252b5132 | 3113 | } |