Commit | Line | Data |
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252b5132 | 1 | /* COFF specific linker code. |
2571583a | 2 | Copyright (C) 1994-2017 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Ian Lance Taylor, Cygnus Support. |
4 | ||
8b956130 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
8b956130 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
8b956130 | 10 | (at your option) any later version. |
252b5132 | 11 | |
8b956130 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
8b956130 NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
252b5132 RH |
21 | |
22 | /* This file contains the COFF backend linker code. */ | |
23 | ||
252b5132 | 24 | #include "sysdep.h" |
3db64b00 | 25 | #include "bfd.h" |
252b5132 RH |
26 | #include "bfdlink.h" |
27 | #include "libbfd.h" | |
28 | #include "coff/internal.h" | |
29 | #include "libcoff.h" | |
a3aa4448 | 30 | #include "safe-ctype.h" |
252b5132 | 31 | |
13e570f8 AM |
32 | static bfd_boolean coff_link_add_object_symbols (bfd *, struct bfd_link_info *); |
33 | static bfd_boolean coff_link_check_archive_element | |
34 | (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, | |
35 | bfd_boolean *); | |
36 | static bfd_boolean coff_link_add_symbols (bfd *, struct bfd_link_info *); | |
252b5132 | 37 | |
b34976b6 | 38 | /* Return TRUE if SYM is a weak, external symbol. */ |
e4202681 NC |
39 | #define IS_WEAK_EXTERNAL(abfd, sym) \ |
40 | ((sym).n_sclass == C_WEAKEXT \ | |
41 | || (obj_pe (abfd) && (sym).n_sclass == C_NT_WEAK)) | |
42 | ||
b34976b6 | 43 | /* Return TRUE if SYM is an external symbol. */ |
e4202681 NC |
44 | #define IS_EXTERNAL(abfd, sym) \ |
45 | ((sym).n_sclass == C_EXT || IS_WEAK_EXTERNAL (abfd, sym)) | |
46 | ||
b2d638c7 ILT |
47 | /* Define macros so that the ISFCN, et. al., macros work correctly. |
48 | These macros are defined in include/coff/internal.h in terms of | |
49 | N_TMASK, etc. These definitions require a user to define local | |
50 | variables with the appropriate names, and with values from the | |
51 | coff_data (abfd) structure. */ | |
52 | ||
53 | #define N_TMASK n_tmask | |
54 | #define N_BTSHFT n_btshft | |
55 | #define N_BTMASK n_btmask | |
56 | ||
252b5132 RH |
57 | /* Create an entry in a COFF linker hash table. */ |
58 | ||
59 | struct bfd_hash_entry * | |
8b956130 NC |
60 | _bfd_coff_link_hash_newfunc (struct bfd_hash_entry *entry, |
61 | struct bfd_hash_table *table, | |
62 | const char *string) | |
252b5132 RH |
63 | { |
64 | struct coff_link_hash_entry *ret = (struct coff_link_hash_entry *) entry; | |
65 | ||
66 | /* Allocate the structure if it has not already been allocated by a | |
67 | subclass. */ | |
68 | if (ret == (struct coff_link_hash_entry *) NULL) | |
69 | ret = ((struct coff_link_hash_entry *) | |
70 | bfd_hash_allocate (table, sizeof (struct coff_link_hash_entry))); | |
71 | if (ret == (struct coff_link_hash_entry *) NULL) | |
72 | return (struct bfd_hash_entry *) ret; | |
73 | ||
74 | /* Call the allocation method of the superclass. */ | |
75 | ret = ((struct coff_link_hash_entry *) | |
76 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
77 | table, string)); | |
78 | if (ret != (struct coff_link_hash_entry *) NULL) | |
79 | { | |
80 | /* Set local fields. */ | |
81 | ret->indx = -1; | |
82 | ret->type = T_NULL; | |
96d56e9f | 83 | ret->symbol_class = C_NULL; |
252b5132 RH |
84 | ret->numaux = 0; |
85 | ret->auxbfd = NULL; | |
86 | ret->aux = NULL; | |
87 | } | |
88 | ||
89 | return (struct bfd_hash_entry *) ret; | |
90 | } | |
91 | ||
92 | /* Initialize a COFF linker hash table. */ | |
93 | ||
b34976b6 | 94 | bfd_boolean |
8b956130 NC |
95 | _bfd_coff_link_hash_table_init (struct coff_link_hash_table *table, |
96 | bfd *abfd, | |
97 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |
98 | struct bfd_hash_table *, | |
66eb6687 AM |
99 | const char *), |
100 | unsigned int entsize) | |
252b5132 | 101 | { |
3722b82f | 102 | memset (&table->stab_info, 0, sizeof (table->stab_info)); |
66eb6687 | 103 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize); |
252b5132 RH |
104 | } |
105 | ||
106 | /* Create a COFF linker hash table. */ | |
107 | ||
108 | struct bfd_link_hash_table * | |
8b956130 | 109 | _bfd_coff_link_hash_table_create (bfd *abfd) |
252b5132 RH |
110 | { |
111 | struct coff_link_hash_table *ret; | |
dc810e39 | 112 | bfd_size_type amt = sizeof (struct coff_link_hash_table); |
252b5132 | 113 | |
a50b1753 | 114 | ret = (struct coff_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
115 | if (ret == NULL) |
116 | return NULL; | |
8b956130 | 117 | |
252b5132 | 118 | if (! _bfd_coff_link_hash_table_init (ret, abfd, |
66eb6687 AM |
119 | _bfd_coff_link_hash_newfunc, |
120 | sizeof (struct coff_link_hash_entry))) | |
252b5132 | 121 | { |
e2d34d7d | 122 | free (ret); |
252b5132 RH |
123 | return (struct bfd_link_hash_table *) NULL; |
124 | } | |
125 | return &ret->root; | |
126 | } | |
127 | ||
128 | /* Create an entry in a COFF debug merge hash table. */ | |
129 | ||
130 | struct bfd_hash_entry * | |
8b956130 NC |
131 | _bfd_coff_debug_merge_hash_newfunc (struct bfd_hash_entry *entry, |
132 | struct bfd_hash_table *table, | |
133 | const char *string) | |
252b5132 RH |
134 | { |
135 | struct coff_debug_merge_hash_entry *ret = | |
136 | (struct coff_debug_merge_hash_entry *) entry; | |
137 | ||
138 | /* Allocate the structure if it has not already been allocated by a | |
139 | subclass. */ | |
140 | if (ret == (struct coff_debug_merge_hash_entry *) NULL) | |
141 | ret = ((struct coff_debug_merge_hash_entry *) | |
142 | bfd_hash_allocate (table, | |
143 | sizeof (struct coff_debug_merge_hash_entry))); | |
144 | if (ret == (struct coff_debug_merge_hash_entry *) NULL) | |
145 | return (struct bfd_hash_entry *) ret; | |
146 | ||
147 | /* Call the allocation method of the superclass. */ | |
148 | ret = ((struct coff_debug_merge_hash_entry *) | |
149 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
150 | if (ret != (struct coff_debug_merge_hash_entry *) NULL) | |
151 | { | |
152 | /* Set local fields. */ | |
153 | ret->types = NULL; | |
154 | } | |
155 | ||
156 | return (struct bfd_hash_entry *) ret; | |
157 | } | |
158 | ||
159 | /* Given a COFF BFD, add symbols to the global hash table as | |
160 | appropriate. */ | |
161 | ||
b34976b6 | 162 | bfd_boolean |
8b956130 | 163 | _bfd_coff_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
164 | { |
165 | switch (bfd_get_format (abfd)) | |
166 | { | |
167 | case bfd_object: | |
168 | return coff_link_add_object_symbols (abfd, info); | |
169 | case bfd_archive: | |
8b956130 NC |
170 | return _bfd_generic_link_add_archive_symbols |
171 | (abfd, info, coff_link_check_archive_element); | |
252b5132 RH |
172 | default: |
173 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 174 | return FALSE; |
252b5132 RH |
175 | } |
176 | } | |
177 | ||
178 | /* Add symbols from a COFF object file. */ | |
179 | ||
b34976b6 | 180 | static bfd_boolean |
8b956130 | 181 | coff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
182 | { |
183 | if (! _bfd_coff_get_external_symbols (abfd)) | |
b34976b6 | 184 | return FALSE; |
252b5132 | 185 | if (! coff_link_add_symbols (abfd, info)) |
b34976b6 | 186 | return FALSE; |
252b5132 | 187 | |
8b956130 NC |
188 | if (! info->keep_memory |
189 | && ! _bfd_coff_free_symbols (abfd)) | |
b34976b6 | 190 | return FALSE; |
252b5132 | 191 | |
b34976b6 | 192 | return TRUE; |
252b5132 RH |
193 | } |
194 | ||
8b956130 NC |
195 | /* Check a single archive element to see if we need to include it in |
196 | the link. *PNEEDED is set according to whether this element is | |
197 | needed in the link or not. This is called via | |
198 | _bfd_generic_link_add_archive_symbols. */ | |
199 | ||
200 | static bfd_boolean | |
201 | coff_link_check_archive_element (bfd *abfd, | |
202 | struct bfd_link_info *info, | |
13e570f8 AM |
203 | struct bfd_link_hash_entry *h, |
204 | const char *name, | |
8b956130 NC |
205 | bfd_boolean *pneeded) |
206 | { | |
13e570f8 | 207 | *pneeded = FALSE; |
5d3236ee | 208 | |
13e570f8 AM |
209 | /* We are only interested in symbols that are currently undefined. |
210 | If a symbol is currently known to be common, COFF linkers do not | |
211 | bring in an object file which defines it. */ | |
212 | if (h->type != bfd_link_hash_undefined) | |
213 | return TRUE; | |
8b956130 | 214 | |
b95a0a31 | 215 | /* Include this element? */ |
13e570f8 | 216 | if (!(*info->callbacks->add_archive_element) (info, abfd, name, &abfd)) |
b95a0a31 | 217 | return TRUE; |
13e570f8 | 218 | *pneeded = TRUE; |
8b956130 | 219 | |
13e570f8 | 220 | return coff_link_add_object_symbols (abfd, info); |
8b956130 NC |
221 | } |
222 | ||
252b5132 RH |
223 | /* Add all the symbols from an object file to the hash table. */ |
224 | ||
b34976b6 | 225 | static bfd_boolean |
8b956130 NC |
226 | coff_link_add_symbols (bfd *abfd, |
227 | struct bfd_link_info *info) | |
252b5132 | 228 | { |
b2d638c7 ILT |
229 | unsigned int n_tmask = coff_data (abfd)->local_n_tmask; |
230 | unsigned int n_btshft = coff_data (abfd)->local_n_btshft; | |
231 | unsigned int n_btmask = coff_data (abfd)->local_n_btmask; | |
b34976b6 AM |
232 | bfd_boolean keep_syms; |
233 | bfd_boolean default_copy; | |
252b5132 RH |
234 | bfd_size_type symcount; |
235 | struct coff_link_hash_entry **sym_hash; | |
236 | bfd_size_type symesz; | |
237 | bfd_byte *esym; | |
238 | bfd_byte *esym_end; | |
dc810e39 | 239 | bfd_size_type amt; |
252b5132 | 240 | |
d63388ff MS |
241 | symcount = obj_raw_syment_count (abfd); |
242 | ||
243 | if (symcount == 0) | |
244 | return TRUE; /* Nothing to do. */ | |
245 | ||
252b5132 RH |
246 | /* Keep the symbols during this function, in case the linker needs |
247 | to read the generic symbols in order to report an error message. */ | |
248 | keep_syms = obj_coff_keep_syms (abfd); | |
b34976b6 | 249 | obj_coff_keep_syms (abfd) = TRUE; |
252b5132 | 250 | |
252b5132 | 251 | if (info->keep_memory) |
b34976b6 | 252 | default_copy = FALSE; |
252b5132 | 253 | else |
b34976b6 | 254 | default_copy = TRUE; |
252b5132 | 255 | |
252b5132 RH |
256 | /* We keep a list of the linker hash table entries that correspond |
257 | to particular symbols. */ | |
dc810e39 | 258 | amt = symcount * sizeof (struct coff_link_hash_entry *); |
a50b1753 | 259 | sym_hash = (struct coff_link_hash_entry **) bfd_zalloc (abfd, amt); |
d63388ff | 260 | if (sym_hash == NULL) |
252b5132 RH |
261 | goto error_return; |
262 | obj_coff_sym_hashes (abfd) = sym_hash; | |
252b5132 RH |
263 | |
264 | symesz = bfd_coff_symesz (abfd); | |
265 | BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)); | |
266 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
267 | esym_end = esym + symcount * symesz; | |
268 | while (esym < esym_end) | |
269 | { | |
270 | struct internal_syment sym; | |
5d54c628 | 271 | enum coff_symbol_classification classification; |
b34976b6 | 272 | bfd_boolean copy; |
252b5132 | 273 | |
8b956130 | 274 | bfd_coff_swap_sym_in (abfd, esym, &sym); |
252b5132 | 275 | |
5d54c628 ILT |
276 | classification = bfd_coff_classify_symbol (abfd, &sym); |
277 | if (classification != COFF_SYMBOL_LOCAL) | |
252b5132 RH |
278 | { |
279 | const char *name; | |
280 | char buf[SYMNMLEN + 1]; | |
281 | flagword flags; | |
282 | asection *section; | |
283 | bfd_vma value; | |
b34976b6 | 284 | bfd_boolean addit; |
252b5132 RH |
285 | |
286 | /* This symbol is externally visible. */ | |
287 | ||
288 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); | |
289 | if (name == NULL) | |
290 | goto error_return; | |
291 | ||
292 | /* We must copy the name into memory if we got it from the | |
293 | syment itself, rather than the string table. */ | |
294 | copy = default_copy; | |
295 | if (sym._n._n_n._n_zeroes != 0 | |
296 | || sym._n._n_n._n_offset == 0) | |
b34976b6 | 297 | copy = TRUE; |
252b5132 RH |
298 | |
299 | value = sym.n_value; | |
300 | ||
5d54c628 | 301 | switch (classification) |
252b5132 | 302 | { |
5d54c628 ILT |
303 | default: |
304 | abort (); | |
305 | ||
306 | case COFF_SYMBOL_GLOBAL: | |
252b5132 RH |
307 | flags = BSF_EXPORT | BSF_GLOBAL; |
308 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
309 | if (! obj_pe (abfd)) | |
310 | value -= section->vma; | |
c77ec726 | 311 | break; |
5d54c628 ILT |
312 | |
313 | case COFF_SYMBOL_UNDEFINED: | |
314 | flags = 0; | |
315 | section = bfd_und_section_ptr; | |
316 | break; | |
317 | ||
318 | case COFF_SYMBOL_COMMON: | |
319 | flags = BSF_GLOBAL; | |
320 | section = bfd_com_section_ptr; | |
321 | break; | |
322 | ||
323 | case COFF_SYMBOL_PE_SECTION: | |
324 | flags = BSF_SECTION_SYM | BSF_GLOBAL; | |
325 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
326 | break; | |
252b5132 RH |
327 | } |
328 | ||
e4202681 | 329 | if (IS_WEAK_EXTERNAL (abfd, sym)) |
252b5132 RH |
330 | flags = BSF_WEAK; |
331 | ||
b34976b6 | 332 | addit = TRUE; |
7fd9c191 ILT |
333 | |
334 | /* In the PE format, section symbols actually refer to the | |
335 | start of the output section. We handle them specially | |
336 | here. */ | |
337 | if (obj_pe (abfd) && (flags & BSF_SECTION_SYM) != 0) | |
338 | { | |
339 | *sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
b34976b6 | 340 | name, FALSE, copy, FALSE); |
7fd9c191 ILT |
341 | if (*sym_hash != NULL) |
342 | { | |
343 | if (((*sym_hash)->coff_link_hash_flags | |
344 | & COFF_LINK_HASH_PE_SECTION_SYMBOL) == 0 | |
345 | && (*sym_hash)->root.type != bfd_link_hash_undefined | |
346 | && (*sym_hash)->root.type != bfd_link_hash_undefweak) | |
4eca0228 | 347 | _bfd_error_handler |
695344c0 | 348 | (_("Warning: symbol `%s' is both section and non-section"), |
7fd9c191 ILT |
349 | name); |
350 | ||
b34976b6 | 351 | addit = FALSE; |
7fd9c191 ILT |
352 | } |
353 | } | |
354 | ||
49147fca ILT |
355 | /* The Microsoft Visual C compiler does string pooling by |
356 | hashing the constants to an internal symbol name, and | |
08da05b0 | 357 | relying on the linker comdat support to discard |
49147fca ILT |
358 | duplicate names. However, if one string is a literal and |
359 | one is a data initializer, one will end up in the .data | |
360 | section and one will end up in the .rdata section. The | |
361 | Microsoft linker will combine them into the .data | |
362 | section, which seems to be wrong since it might cause the | |
363 | literal to change. | |
364 | ||
365 | As long as there are no external references to the | |
366 | symbols, which there shouldn't be, we can treat the .data | |
367 | and .rdata instances as separate symbols. The comdat | |
368 | code in the linker will do the appropriate merging. Here | |
369 | we avoid getting a multiple definition error for one of | |
370 | these special symbols. | |
371 | ||
372 | FIXME: I don't think this will work in the case where | |
373 | there are two object files which use the constants as a | |
374 | literal and two object files which use it as a data | |
375 | initializer. One or the other of the second object files | |
376 | is going to wind up with an inappropriate reference. */ | |
377 | if (obj_pe (abfd) | |
378 | && (classification == COFF_SYMBOL_GLOBAL | |
379 | || classification == COFF_SYMBOL_PE_SECTION) | |
271d0fc3 | 380 | && coff_section_data (abfd, section) != NULL |
082b7297 | 381 | && coff_section_data (abfd, section)->comdat != NULL |
0112cd26 | 382 | && CONST_STRNEQ (name, "??_") |
082b7297 | 383 | && strcmp (name, coff_section_data (abfd, section)->comdat->name) == 0) |
49147fca ILT |
384 | { |
385 | if (*sym_hash == NULL) | |
386 | *sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
b34976b6 | 387 | name, FALSE, copy, FALSE); |
49147fca ILT |
388 | if (*sym_hash != NULL |
389 | && (*sym_hash)->root.type == bfd_link_hash_defined | |
082b7297 L |
390 | && coff_section_data (abfd, (*sym_hash)->root.u.def.section)->comdat != NULL |
391 | && strcmp (coff_section_data (abfd, (*sym_hash)->root.u.def.section)->comdat->name, | |
392 | coff_section_data (abfd, section)->comdat->name) == 0) | |
b34976b6 | 393 | addit = FALSE; |
49147fca ILT |
394 | } |
395 | ||
7fd9c191 ILT |
396 | if (addit) |
397 | { | |
398 | if (! (bfd_coff_link_add_one_symbol | |
399 | (info, abfd, name, flags, section, value, | |
b34976b6 | 400 | (const char *) NULL, copy, FALSE, |
7fd9c191 ILT |
401 | (struct bfd_link_hash_entry **) sym_hash))) |
402 | goto error_return; | |
403 | } | |
404 | ||
405 | if (obj_pe (abfd) && (flags & BSF_SECTION_SYM) != 0) | |
406 | (*sym_hash)->coff_link_hash_flags |= | |
407 | COFF_LINK_HASH_PE_SECTION_SYMBOL; | |
252b5132 | 408 | |
2820a0b7 ILT |
409 | /* Limit the alignment of a common symbol to the possible |
410 | alignment of a section. There is no point to permitting | |
411 | a higher alignment for a common symbol: we can not | |
412 | guarantee it, and it may cause us to allocate extra space | |
413 | in the common section. */ | |
252b5132 RH |
414 | if (section == bfd_com_section_ptr |
415 | && (*sym_hash)->root.type == bfd_link_hash_common | |
416 | && ((*sym_hash)->root.u.c.p->alignment_power | |
417 | > bfd_coff_default_section_alignment_power (abfd))) | |
418 | (*sym_hash)->root.u.c.p->alignment_power | |
419 | = bfd_coff_default_section_alignment_power (abfd); | |
420 | ||
f13a99db | 421 | if (bfd_get_flavour (info->output_bfd) == bfd_get_flavour (abfd)) |
252b5132 | 422 | { |
5d3aaa74 ILT |
423 | /* If we don't have any symbol information currently in |
424 | the hash table, or if we are looking at a symbol | |
425 | definition, then update the symbol class and type in | |
426 | the hash table. */ | |
96d56e9f | 427 | if (((*sym_hash)->symbol_class == C_NULL |
5d3aaa74 ILT |
428 | && (*sym_hash)->type == T_NULL) |
429 | || sym.n_scnum != 0 | |
430 | || (sym.n_value != 0 | |
431 | && (*sym_hash)->root.type != bfd_link_hash_defined | |
432 | && (*sym_hash)->root.type != bfd_link_hash_defweak)) | |
433 | { | |
96d56e9f | 434 | (*sym_hash)->symbol_class = sym.n_sclass; |
5d3aaa74 ILT |
435 | if (sym.n_type != T_NULL) |
436 | { | |
437 | /* We want to warn if the type changed, but not | |
438 | if it changed from an unspecified type. | |
439 | Testing the whole type byte may work, but the | |
440 | change from (e.g.) a function of unspecified | |
441 | type to function of known type also wants to | |
442 | skip the warning. */ | |
443 | if ((*sym_hash)->type != T_NULL | |
444 | && (*sym_hash)->type != sym.n_type | |
445 | && !(DTYPE ((*sym_hash)->type) == DTYPE (sym.n_type) | |
446 | && (BTYPE ((*sym_hash)->type) == T_NULL | |
447 | || BTYPE (sym.n_type) == T_NULL))) | |
4eca0228 | 448 | _bfd_error_handler |
695344c0 | 449 | /* xgettext: c-format */ |
d003868e AM |
450 | (_("Warning: type of symbol `%s' changed from %d to %d in %B"), |
451 | abfd, name, (*sym_hash)->type, sym.n_type); | |
5d3aaa74 ILT |
452 | |
453 | /* We don't want to change from a meaningful | |
454 | base type to a null one, but if we know | |
455 | nothing, take what little we might now know. */ | |
456 | if (BTYPE (sym.n_type) != T_NULL | |
457 | || (*sym_hash)->type == T_NULL) | |
458 | (*sym_hash)->type = sym.n_type; | |
459 | } | |
460 | (*sym_hash)->auxbfd = abfd; | |
252b5132 RH |
461 | if (sym.n_numaux != 0) |
462 | { | |
463 | union internal_auxent *alloc; | |
464 | unsigned int i; | |
465 | bfd_byte *eaux; | |
466 | union internal_auxent *iaux; | |
467 | ||
468 | (*sym_hash)->numaux = sym.n_numaux; | |
469 | alloc = ((union internal_auxent *) | |
470 | bfd_hash_allocate (&info->hash->table, | |
471 | (sym.n_numaux | |
472 | * sizeof (*alloc)))); | |
473 | if (alloc == NULL) | |
474 | goto error_return; | |
475 | for (i = 0, eaux = esym + symesz, iaux = alloc; | |
476 | i < sym.n_numaux; | |
477 | i++, eaux += symesz, iaux++) | |
8b956130 | 478 | bfd_coff_swap_aux_in (abfd, eaux, sym.n_type, |
dc810e39 | 479 | sym.n_sclass, (int) i, |
8b956130 | 480 | sym.n_numaux, iaux); |
252b5132 RH |
481 | (*sym_hash)->aux = alloc; |
482 | } | |
483 | } | |
484 | } | |
5d54c628 ILT |
485 | |
486 | if (classification == COFF_SYMBOL_PE_SECTION | |
487 | && (*sym_hash)->numaux != 0) | |
488 | { | |
489 | /* Some PE sections (such as .bss) have a zero size in | |
490 | the section header, but a non-zero size in the AUX | |
491 | record. Correct that here. | |
492 | ||
493 | FIXME: This is not at all the right place to do this. | |
494 | For example, it won't help objdump. This needs to be | |
495 | done when we swap in the section header. */ | |
5d54c628 | 496 | BFD_ASSERT ((*sym_hash)->numaux == 1); |
eea6121a AM |
497 | if (section->size == 0) |
498 | section->size = (*sym_hash)->aux[0].x_scn.x_scnlen; | |
5d54c628 ILT |
499 | |
500 | /* FIXME: We could test whether the section sizes | |
501 | matches the size in the aux entry, but apparently | |
502 | that sometimes fails unexpectedly. */ | |
503 | } | |
252b5132 RH |
504 | } |
505 | ||
506 | esym += (sym.n_numaux + 1) * symesz; | |
507 | sym_hash += sym.n_numaux + 1; | |
508 | } | |
509 | ||
1049f94e | 510 | /* If this is a non-traditional, non-relocatable link, try to |
252b5132 | 511 | optimize the handling of any .stab/.stabstr sections. */ |
0e1862bb | 512 | if (! bfd_link_relocatable (info) |
252b5132 | 513 | && ! info->traditional_format |
f13a99db | 514 | && bfd_get_flavour (info->output_bfd) == bfd_get_flavour (abfd) |
252b5132 RH |
515 | && (info->strip != strip_all && info->strip != strip_debugger)) |
516 | { | |
29ca8dc5 | 517 | asection *stabstr; |
252b5132 | 518 | |
29ca8dc5 | 519 | stabstr = bfd_get_section_by_name (abfd, ".stabstr"); |
252b5132 | 520 | |
29ca8dc5 NS |
521 | if (stabstr != NULL) |
522 | { | |
523 | bfd_size_type string_offset = 0; | |
524 | asection *stab; | |
68ffbac6 | 525 | |
29ca8dc5 | 526 | for (stab = abfd->sections; stab; stab = stab->next) |
faa40977 | 527 | if (CONST_STRNEQ (stab->name, ".stab") |
29ca8dc5 | 528 | && (!stab->name[5] |
a3aa4448 | 529 | || (stab->name[5] == '.' && ISDIGIT (stab->name[6])))) |
252b5132 RH |
530 | { |
531 | struct coff_link_hash_table *table; | |
29ca8dc5 NS |
532 | struct coff_section_tdata *secdata |
533 | = coff_section_data (abfd, stab); | |
68ffbac6 | 534 | |
252b5132 RH |
535 | if (secdata == NULL) |
536 | { | |
dc810e39 | 537 | amt = sizeof (struct coff_section_tdata); |
8b956130 | 538 | stab->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
539 | if (stab->used_by_bfd == NULL) |
540 | goto error_return; | |
541 | secdata = coff_section_data (abfd, stab); | |
542 | } | |
543 | ||
544 | table = coff_hash_table (info); | |
545 | ||
546 | if (! _bfd_link_section_stabs (abfd, &table->stab_info, | |
547 | stab, stabstr, | |
29ca8dc5 NS |
548 | &secdata->stab_info, |
549 | &string_offset)) | |
252b5132 RH |
550 | goto error_return; |
551 | } | |
552 | } | |
553 | } | |
554 | ||
555 | obj_coff_keep_syms (abfd) = keep_syms; | |
556 | ||
b34976b6 | 557 | return TRUE; |
252b5132 RH |
558 | |
559 | error_return: | |
560 | obj_coff_keep_syms (abfd) = keep_syms; | |
b34976b6 | 561 | return FALSE; |
252b5132 RH |
562 | } |
563 | \f | |
564 | /* Do the final link step. */ | |
565 | ||
b34976b6 | 566 | bfd_boolean |
8b956130 NC |
567 | _bfd_coff_final_link (bfd *abfd, |
568 | struct bfd_link_info *info) | |
252b5132 RH |
569 | { |
570 | bfd_size_type symesz; | |
57402f1e | 571 | struct coff_final_link_info flaginfo; |
b34976b6 AM |
572 | bfd_boolean debug_merge_allocated; |
573 | bfd_boolean long_section_names; | |
252b5132 RH |
574 | asection *o; |
575 | struct bfd_link_order *p; | |
dc810e39 AM |
576 | bfd_size_type max_sym_count; |
577 | bfd_size_type max_lineno_count; | |
578 | bfd_size_type max_reloc_count; | |
579 | bfd_size_type max_output_reloc_count; | |
580 | bfd_size_type max_contents_size; | |
252b5132 RH |
581 | file_ptr rel_filepos; |
582 | unsigned int relsz; | |
583 | file_ptr line_filepos; | |
584 | unsigned int linesz; | |
585 | bfd *sub; | |
586 | bfd_byte *external_relocs = NULL; | |
587 | char strbuf[STRING_SIZE_SIZE]; | |
dc810e39 | 588 | bfd_size_type amt; |
252b5132 RH |
589 | |
590 | symesz = bfd_coff_symesz (abfd); | |
591 | ||
57402f1e NC |
592 | flaginfo.info = info; |
593 | flaginfo.output_bfd = abfd; | |
594 | flaginfo.strtab = NULL; | |
595 | flaginfo.section_info = NULL; | |
596 | flaginfo.last_file_index = -1; | |
597 | flaginfo.last_bf_index = -1; | |
598 | flaginfo.internal_syms = NULL; | |
599 | flaginfo.sec_ptrs = NULL; | |
600 | flaginfo.sym_indices = NULL; | |
601 | flaginfo.outsyms = NULL; | |
602 | flaginfo.linenos = NULL; | |
603 | flaginfo.contents = NULL; | |
604 | flaginfo.external_relocs = NULL; | |
605 | flaginfo.internal_relocs = NULL; | |
606 | flaginfo.global_to_static = FALSE; | |
b34976b6 | 607 | debug_merge_allocated = FALSE; |
252b5132 RH |
608 | |
609 | coff_data (abfd)->link_info = info; | |
610 | ||
57402f1e NC |
611 | flaginfo.strtab = _bfd_stringtab_init (); |
612 | if (flaginfo.strtab == NULL) | |
252b5132 RH |
613 | goto error_return; |
614 | ||
57402f1e | 615 | if (! coff_debug_merge_hash_table_init (&flaginfo.debug_merge)) |
252b5132 | 616 | goto error_return; |
b34976b6 | 617 | debug_merge_allocated = TRUE; |
252b5132 RH |
618 | |
619 | /* Compute the file positions for all the sections. */ | |
620 | if (! abfd->output_has_begun) | |
621 | { | |
622 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
623 | goto error_return; | |
624 | } | |
625 | ||
626 | /* Count the line numbers and relocation entries required for the | |
627 | output file. Set the file positions for the relocs. */ | |
628 | rel_filepos = obj_relocbase (abfd); | |
629 | relsz = bfd_coff_relsz (abfd); | |
630 | max_contents_size = 0; | |
631 | max_lineno_count = 0; | |
632 | max_reloc_count = 0; | |
633 | ||
b34976b6 | 634 | long_section_names = FALSE; |
252b5132 RH |
635 | for (o = abfd->sections; o != NULL; o = o->next) |
636 | { | |
637 | o->reloc_count = 0; | |
638 | o->lineno_count = 0; | |
8423293d | 639 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
252b5132 RH |
640 | { |
641 | if (p->type == bfd_indirect_link_order) | |
642 | { | |
643 | asection *sec; | |
644 | ||
645 | sec = p->u.indirect.section; | |
646 | ||
647 | /* Mark all sections which are to be included in the | |
648 | link. This will normally be every section. We need | |
649 | to do this so that we can identify any sections which | |
650 | the linker has decided to not include. */ | |
b34976b6 | 651 | sec->linker_mark = TRUE; |
252b5132 RH |
652 | |
653 | if (info->strip == strip_none | |
654 | || info->strip == strip_some) | |
655 | o->lineno_count += sec->lineno_count; | |
656 | ||
0e1862bb | 657 | if (bfd_link_relocatable (info)) |
252b5132 RH |
658 | o->reloc_count += sec->reloc_count; |
659 | ||
eea6121a AM |
660 | if (sec->rawsize > max_contents_size) |
661 | max_contents_size = sec->rawsize; | |
662 | if (sec->size > max_contents_size) | |
663 | max_contents_size = sec->size; | |
252b5132 RH |
664 | if (sec->lineno_count > max_lineno_count) |
665 | max_lineno_count = sec->lineno_count; | |
666 | if (sec->reloc_count > max_reloc_count) | |
667 | max_reloc_count = sec->reloc_count; | |
668 | } | |
0e1862bb | 669 | else if (bfd_link_relocatable (info) |
252b5132 RH |
670 | && (p->type == bfd_section_reloc_link_order |
671 | || p->type == bfd_symbol_reloc_link_order)) | |
672 | ++o->reloc_count; | |
673 | } | |
674 | if (o->reloc_count == 0) | |
675 | o->rel_filepos = 0; | |
676 | else | |
677 | { | |
678 | o->flags |= SEC_RELOC; | |
679 | o->rel_filepos = rel_filepos; | |
680 | rel_filepos += o->reloc_count * relsz; | |
e9168c1e MM |
681 | /* In PE COFF, if there are at least 0xffff relocations an |
682 | extra relocation will be written out to encode the count. */ | |
683 | if (obj_pe (abfd) && o->reloc_count >= 0xffff) | |
684 | rel_filepos += relsz; | |
252b5132 RH |
685 | } |
686 | ||
687 | if (bfd_coff_long_section_names (abfd) | |
688 | && strlen (o->name) > SCNNMLEN) | |
689 | { | |
690 | /* This section has a long name which must go in the string | |
691 | table. This must correspond to the code in | |
692 | coff_write_object_contents which puts the string index | |
693 | into the s_name field of the section header. That is why | |
b34976b6 | 694 | we pass hash as FALSE. */ |
57402f1e | 695 | if (_bfd_stringtab_add (flaginfo.strtab, o->name, FALSE, FALSE) |
252b5132 RH |
696 | == (bfd_size_type) -1) |
697 | goto error_return; | |
b34976b6 | 698 | long_section_names = TRUE; |
252b5132 RH |
699 | } |
700 | } | |
701 | ||
1049f94e | 702 | /* If doing a relocatable link, allocate space for the pointers we |
252b5132 | 703 | need to keep. */ |
0e1862bb | 704 | if (bfd_link_relocatable (info)) |
252b5132 RH |
705 | { |
706 | unsigned int i; | |
707 | ||
708 | /* We use section_count + 1, rather than section_count, because | |
709 | the target_index fields are 1 based. */ | |
dc810e39 AM |
710 | amt = abfd->section_count + 1; |
711 | amt *= sizeof (struct coff_link_section_info); | |
57402f1e NC |
712 | flaginfo.section_info = (struct coff_link_section_info *) bfd_malloc (amt); |
713 | if (flaginfo.section_info == NULL) | |
252b5132 RH |
714 | goto error_return; |
715 | for (i = 0; i <= abfd->section_count; i++) | |
716 | { | |
57402f1e NC |
717 | flaginfo.section_info[i].relocs = NULL; |
718 | flaginfo.section_info[i].rel_hashes = NULL; | |
252b5132 RH |
719 | } |
720 | } | |
721 | ||
722 | /* We now know the size of the relocs, so we can determine the file | |
723 | positions of the line numbers. */ | |
724 | line_filepos = rel_filepos; | |
725 | linesz = bfd_coff_linesz (abfd); | |
726 | max_output_reloc_count = 0; | |
727 | for (o = abfd->sections; o != NULL; o = o->next) | |
728 | { | |
729 | if (o->lineno_count == 0) | |
730 | o->line_filepos = 0; | |
731 | else | |
732 | { | |
733 | o->line_filepos = line_filepos; | |
734 | line_filepos += o->lineno_count * linesz; | |
735 | } | |
736 | ||
737 | if (o->reloc_count != 0) | |
738 | { | |
739 | /* We don't know the indices of global symbols until we have | |
740 | written out all the local symbols. For each section in | |
741 | the output file, we keep an array of pointers to hash | |
742 | table entries. Each entry in the array corresponds to a | |
743 | reloc. When we find a reloc against a global symbol, we | |
744 | set the corresponding entry in this array so that we can | |
745 | fix up the symbol index after we have written out all the | |
746 | local symbols. | |
747 | ||
748 | Because of this problem, we also keep the relocs in | |
749 | memory until the end of the link. This wastes memory, | |
1049f94e | 750 | but only when doing a relocatable link, which is not the |
252b5132 | 751 | common case. */ |
0e1862bb | 752 | BFD_ASSERT (bfd_link_relocatable (info)); |
dc810e39 AM |
753 | amt = o->reloc_count; |
754 | amt *= sizeof (struct internal_reloc); | |
57402f1e | 755 | flaginfo.section_info[o->target_index].relocs = |
a50b1753 | 756 | (struct internal_reloc *) bfd_malloc (amt); |
dc810e39 AM |
757 | amt = o->reloc_count; |
758 | amt *= sizeof (struct coff_link_hash_entry *); | |
57402f1e | 759 | flaginfo.section_info[o->target_index].rel_hashes = |
a50b1753 | 760 | (struct coff_link_hash_entry **) bfd_malloc (amt); |
57402f1e NC |
761 | if (flaginfo.section_info[o->target_index].relocs == NULL |
762 | || flaginfo.section_info[o->target_index].rel_hashes == NULL) | |
252b5132 RH |
763 | goto error_return; |
764 | ||
765 | if (o->reloc_count > max_output_reloc_count) | |
766 | max_output_reloc_count = o->reloc_count; | |
767 | } | |
768 | ||
769 | /* Reset the reloc and lineno counts, so that we can use them to | |
770 | count the number of entries we have output so far. */ | |
771 | o->reloc_count = 0; | |
772 | o->lineno_count = 0; | |
773 | } | |
774 | ||
775 | obj_sym_filepos (abfd) = line_filepos; | |
776 | ||
777 | /* Figure out the largest number of symbols in an input BFD. Take | |
778 | the opportunity to clear the output_has_begun fields of all the | |
779 | input BFD's. */ | |
780 | max_sym_count = 0; | |
c72f2fb2 | 781 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
252b5132 RH |
782 | { |
783 | size_t sz; | |
784 | ||
b34976b6 | 785 | sub->output_has_begun = FALSE; |
e7ebb214 | 786 | sz = bfd_family_coff (sub) ? obj_raw_syment_count (sub) : 2; |
252b5132 RH |
787 | if (sz > max_sym_count) |
788 | max_sym_count = sz; | |
789 | } | |
790 | ||
791 | /* Allocate some buffers used while linking. */ | |
dc810e39 | 792 | amt = max_sym_count * sizeof (struct internal_syment); |
57402f1e | 793 | flaginfo.internal_syms = (struct internal_syment *) bfd_malloc (amt); |
dc810e39 | 794 | amt = max_sym_count * sizeof (asection *); |
57402f1e | 795 | flaginfo.sec_ptrs = (asection **) bfd_malloc (amt); |
dc810e39 | 796 | amt = max_sym_count * sizeof (long); |
57402f1e NC |
797 | flaginfo.sym_indices = (long int *) bfd_malloc (amt); |
798 | flaginfo.outsyms = (bfd_byte *) bfd_malloc ((max_sym_count + 1) * symesz); | |
dc810e39 | 799 | amt = max_lineno_count * bfd_coff_linesz (abfd); |
57402f1e NC |
800 | flaginfo.linenos = (bfd_byte *) bfd_malloc (amt); |
801 | flaginfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); | |
dc810e39 | 802 | amt = max_reloc_count * relsz; |
57402f1e | 803 | flaginfo.external_relocs = (bfd_byte *) bfd_malloc (amt); |
0e1862bb | 804 | if (! bfd_link_relocatable (info)) |
dc810e39 AM |
805 | { |
806 | amt = max_reloc_count * sizeof (struct internal_reloc); | |
57402f1e | 807 | flaginfo.internal_relocs = (struct internal_reloc *) bfd_malloc (amt); |
dc810e39 | 808 | } |
57402f1e NC |
809 | if ((flaginfo.internal_syms == NULL && max_sym_count > 0) |
810 | || (flaginfo.sec_ptrs == NULL && max_sym_count > 0) | |
811 | || (flaginfo.sym_indices == NULL && max_sym_count > 0) | |
812 | || flaginfo.outsyms == NULL | |
813 | || (flaginfo.linenos == NULL && max_lineno_count > 0) | |
814 | || (flaginfo.contents == NULL && max_contents_size > 0) | |
815 | || (flaginfo.external_relocs == NULL && max_reloc_count > 0) | |
0e1862bb | 816 | || (! bfd_link_relocatable (info) |
57402f1e | 817 | && flaginfo.internal_relocs == NULL |
252b5132 RH |
818 | && max_reloc_count > 0)) |
819 | goto error_return; | |
820 | ||
821 | /* We now know the position of everything in the file, except that | |
822 | we don't know the size of the symbol table and therefore we don't | |
823 | know where the string table starts. We just build the string | |
824 | table in memory as we go along. We process all the relocations | |
825 | for a single input file at once. */ | |
826 | obj_raw_syment_count (abfd) = 0; | |
827 | ||
828 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) | |
829 | { | |
830 | if (! bfd_coff_start_final_link (abfd, info)) | |
831 | goto error_return; | |
832 | } | |
833 | ||
834 | for (o = abfd->sections; o != NULL; o = o->next) | |
835 | { | |
8423293d | 836 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
252b5132 RH |
837 | { |
838 | if (p->type == bfd_indirect_link_order | |
9bd09e22 | 839 | && bfd_family_coff (p->u.indirect.section->owner)) |
252b5132 RH |
840 | { |
841 | sub = p->u.indirect.section->owner; | |
57402f1e | 842 | if (! bfd_coff_link_output_has_begun (sub, & flaginfo)) |
252b5132 | 843 | { |
57402f1e | 844 | if (! _bfd_coff_link_input_bfd (&flaginfo, sub)) |
252b5132 | 845 | goto error_return; |
b34976b6 | 846 | sub->output_has_begun = TRUE; |
252b5132 RH |
847 | } |
848 | } | |
849 | else if (p->type == bfd_section_reloc_link_order | |
850 | || p->type == bfd_symbol_reloc_link_order) | |
851 | { | |
57402f1e | 852 | if (! _bfd_coff_reloc_link_order (abfd, &flaginfo, o, p)) |
252b5132 RH |
853 | goto error_return; |
854 | } | |
855 | else | |
856 | { | |
857 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
858 | goto error_return; | |
859 | } | |
860 | } | |
861 | } | |
862 | ||
57402f1e | 863 | if (flaginfo.info->strip != strip_all && flaginfo.info->discard != discard_all) |
e7ebb214 JB |
864 | { |
865 | /* Add local symbols from foreign inputs. */ | |
c72f2fb2 | 866 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
e7ebb214 JB |
867 | { |
868 | unsigned int i; | |
869 | ||
870 | if (bfd_family_coff (sub) || ! bfd_get_outsymbols (sub)) | |
871 | continue; | |
872 | for (i = 0; i < bfd_get_symcount (sub); ++i) | |
873 | { | |
874 | asymbol *sym = bfd_get_outsymbols (sub) [i]; | |
875 | file_ptr pos; | |
876 | struct internal_syment isym; | |
270f8245 JB |
877 | union internal_auxent iaux; |
878 | bfd_size_type string_size = 0, indx; | |
e7ebb214 | 879 | bfd_vma written = 0; |
270f8245 | 880 | bfd_boolean rewrite = FALSE, hash; |
e7ebb214 JB |
881 | |
882 | if (! (sym->flags & BSF_LOCAL) | |
883 | || (sym->flags & (BSF_SECTION_SYM | BSF_DEBUGGING_RELOC | |
884 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC | |
885 | | BSF_SYNTHETIC)) | |
886 | || ((sym->flags & BSF_DEBUGGING) | |
887 | && ! (sym->flags & BSF_FILE))) | |
888 | continue; | |
889 | ||
890 | /* See if we are discarding symbols with this name. */ | |
57402f1e NC |
891 | if ((flaginfo.info->strip == strip_some |
892 | && (bfd_hash_lookup (flaginfo.info->keep_hash, | |
e7ebb214 JB |
893 | bfd_asymbol_name(sym), FALSE, FALSE) |
894 | == NULL)) | |
57402f1e | 895 | || (((flaginfo.info->discard == discard_sec_merge |
e7ebb214 | 896 | && (bfd_get_section (sym)->flags & SEC_MERGE) |
0e1862bb | 897 | && ! bfd_link_relocatable (flaginfo.info)) |
57402f1e | 898 | || flaginfo.info->discard == discard_l) |
e7ebb214 JB |
899 | && bfd_is_local_label_name (sub, bfd_asymbol_name(sym)))) |
900 | continue; | |
901 | ||
902 | pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) | |
903 | * symesz; | |
904 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
905 | goto error_return; | |
270f8245 | 906 | if (! coff_write_alien_symbol(abfd, sym, &isym, &iaux, &written, |
e7ebb214 JB |
907 | &string_size, NULL, NULL)) |
908 | goto error_return; | |
909 | ||
270f8245 JB |
910 | hash = !flaginfo.info->traditional_format; |
911 | ||
912 | if (string_size >= 6 && isym.n_sclass == C_FILE | |
913 | && ! isym._n._n_n._n_zeroes && isym.n_numaux) | |
e7ebb214 | 914 | { |
270f8245 JB |
915 | indx = _bfd_stringtab_add (flaginfo.strtab, ".file", hash, |
916 | FALSE); | |
917 | if (indx == (bfd_size_type) -1) | |
918 | goto error_return; | |
919 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
920 | bfd_coff_swap_sym_out (abfd, &isym, flaginfo.outsyms); | |
921 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
922 | || bfd_bwrite (flaginfo.outsyms, symesz, | |
923 | abfd) != symesz) | |
924 | goto error_return; | |
925 | string_size -= 6; | |
926 | } | |
e7ebb214 | 927 | |
270f8245 JB |
928 | if (string_size) |
929 | { | |
57402f1e | 930 | indx = _bfd_stringtab_add (flaginfo.strtab, |
e7ebb214 JB |
931 | bfd_asymbol_name (sym), hash, |
932 | FALSE); | |
933 | if (indx == (bfd_size_type) -1) | |
934 | goto error_return; | |
270f8245 JB |
935 | if (isym.n_sclass != C_FILE) |
936 | { | |
937 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
938 | bfd_coff_swap_sym_out (abfd, &isym, flaginfo.outsyms); | |
939 | rewrite = TRUE; | |
940 | } | |
941 | else | |
942 | { | |
943 | BFD_ASSERT (isym.n_numaux == 1); | |
944 | iaux.x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; | |
945 | bfd_coff_swap_aux_out (abfd, &iaux, isym.n_type, C_FILE, | |
946 | 0, 1, flaginfo.outsyms + symesz); | |
947 | if (bfd_seek (abfd, pos + symesz, SEEK_SET) != 0 | |
948 | || bfd_bwrite (flaginfo.outsyms + symesz, symesz, | |
949 | abfd) != symesz) | |
950 | goto error_return; | |
951 | } | |
e7ebb214 JB |
952 | } |
953 | ||
954 | if (isym.n_sclass == C_FILE) | |
955 | { | |
57402f1e | 956 | if (flaginfo.last_file_index != -1) |
e7ebb214 | 957 | { |
57402f1e NC |
958 | flaginfo.last_file.n_value = obj_raw_syment_count (abfd); |
959 | bfd_coff_swap_sym_out (abfd, &flaginfo.last_file, | |
960 | flaginfo.outsyms); | |
961 | pos = obj_sym_filepos (abfd) + flaginfo.last_file_index | |
e7ebb214 JB |
962 | * symesz; |
963 | rewrite = TRUE; | |
964 | } | |
57402f1e NC |
965 | flaginfo.last_file_index = obj_raw_syment_count (abfd); |
966 | flaginfo.last_file = isym; | |
e7ebb214 JB |
967 | } |
968 | ||
969 | if (rewrite | |
970 | && (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
57402f1e | 971 | || bfd_bwrite (flaginfo.outsyms, symesz, abfd) != symesz)) |
e7ebb214 JB |
972 | goto error_return; |
973 | ||
974 | obj_raw_syment_count (abfd) += written; | |
975 | } | |
976 | } | |
977 | } | |
978 | ||
57402f1e | 979 | if (! bfd_coff_final_link_postscript (abfd, & flaginfo)) |
252b5132 | 980 | goto error_return; |
244148ad | 981 | |
252b5132 RH |
982 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ |
983 | ||
57402f1e | 984 | coff_debug_merge_hash_table_free (&flaginfo.debug_merge); |
b34976b6 | 985 | debug_merge_allocated = FALSE; |
252b5132 | 986 | |
57402f1e | 987 | if (flaginfo.internal_syms != NULL) |
252b5132 | 988 | { |
57402f1e NC |
989 | free (flaginfo.internal_syms); |
990 | flaginfo.internal_syms = NULL; | |
252b5132 | 991 | } |
57402f1e | 992 | if (flaginfo.sec_ptrs != NULL) |
252b5132 | 993 | { |
57402f1e NC |
994 | free (flaginfo.sec_ptrs); |
995 | flaginfo.sec_ptrs = NULL; | |
252b5132 | 996 | } |
57402f1e | 997 | if (flaginfo.sym_indices != NULL) |
252b5132 | 998 | { |
57402f1e NC |
999 | free (flaginfo.sym_indices); |
1000 | flaginfo.sym_indices = NULL; | |
252b5132 | 1001 | } |
57402f1e | 1002 | if (flaginfo.linenos != NULL) |
252b5132 | 1003 | { |
57402f1e NC |
1004 | free (flaginfo.linenos); |
1005 | flaginfo.linenos = NULL; | |
252b5132 | 1006 | } |
57402f1e | 1007 | if (flaginfo.contents != NULL) |
252b5132 | 1008 | { |
57402f1e NC |
1009 | free (flaginfo.contents); |
1010 | flaginfo.contents = NULL; | |
252b5132 | 1011 | } |
57402f1e | 1012 | if (flaginfo.external_relocs != NULL) |
252b5132 | 1013 | { |
57402f1e NC |
1014 | free (flaginfo.external_relocs); |
1015 | flaginfo.external_relocs = NULL; | |
252b5132 | 1016 | } |
57402f1e | 1017 | if (flaginfo.internal_relocs != NULL) |
252b5132 | 1018 | { |
57402f1e NC |
1019 | free (flaginfo.internal_relocs); |
1020 | flaginfo.internal_relocs = NULL; | |
252b5132 RH |
1021 | } |
1022 | ||
1023 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
1024 | index of the first external symbol. Write it out again if | |
1025 | necessary. */ | |
57402f1e NC |
1026 | if (flaginfo.last_file_index != -1 |
1027 | && (unsigned int) flaginfo.last_file.n_value != obj_raw_syment_count (abfd)) | |
252b5132 | 1028 | { |
dc810e39 AM |
1029 | file_ptr pos; |
1030 | ||
57402f1e NC |
1031 | flaginfo.last_file.n_value = obj_raw_syment_count (abfd); |
1032 | bfd_coff_swap_sym_out (abfd, &flaginfo.last_file, | |
1033 | flaginfo.outsyms); | |
dc810e39 | 1034 | |
57402f1e | 1035 | pos = obj_sym_filepos (abfd) + flaginfo.last_file_index * symesz; |
dc810e39 | 1036 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
57402f1e | 1037 | || bfd_bwrite (flaginfo.outsyms, symesz, abfd) != symesz) |
b34976b6 | 1038 | return FALSE; |
252b5132 RH |
1039 | } |
1040 | ||
1041 | /* If doing task linking (ld --task-link) then make a pass through the | |
1042 | global symbols, writing out any that are defined, and making them | |
244148ad | 1043 | static. */ |
252b5132 RH |
1044 | if (info->task_link) |
1045 | { | |
57402f1e | 1046 | flaginfo.failed = FALSE; |
e92d460e | 1047 | coff_link_hash_traverse (coff_hash_table (info), |
57402f1e NC |
1048 | _bfd_coff_write_task_globals, &flaginfo); |
1049 | if (flaginfo.failed) | |
252b5132 RH |
1050 | goto error_return; |
1051 | } | |
1052 | ||
1053 | /* Write out the global symbols. */ | |
57402f1e NC |
1054 | flaginfo.failed = FALSE; |
1055 | bfd_hash_traverse (&info->hash->table, _bfd_coff_write_global_sym, &flaginfo); | |
1056 | if (flaginfo.failed) | |
252b5132 RH |
1057 | goto error_return; |
1058 | ||
1059 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ | |
57402f1e | 1060 | if (flaginfo.outsyms != NULL) |
252b5132 | 1061 | { |
57402f1e NC |
1062 | free (flaginfo.outsyms); |
1063 | flaginfo.outsyms = NULL; | |
252b5132 RH |
1064 | } |
1065 | ||
0e1862bb | 1066 | if (bfd_link_relocatable (info) && max_output_reloc_count > 0) |
252b5132 RH |
1067 | { |
1068 | /* Now that we have written out all the global symbols, we know | |
1069 | the symbol indices to use for relocs against them, and we can | |
1070 | finally write out the relocs. */ | |
dc810e39 | 1071 | amt = max_output_reloc_count * relsz; |
a50b1753 | 1072 | external_relocs = (bfd_byte *) bfd_malloc (amt); |
252b5132 RH |
1073 | if (external_relocs == NULL) |
1074 | goto error_return; | |
1075 | ||
1076 | for (o = abfd->sections; o != NULL; o = o->next) | |
1077 | { | |
1078 | struct internal_reloc *irel; | |
1079 | struct internal_reloc *irelend; | |
1080 | struct coff_link_hash_entry **rel_hash; | |
1081 | bfd_byte *erel; | |
1082 | ||
1083 | if (o->reloc_count == 0) | |
1084 | continue; | |
1085 | ||
57402f1e | 1086 | irel = flaginfo.section_info[o->target_index].relocs; |
252b5132 | 1087 | irelend = irel + o->reloc_count; |
57402f1e | 1088 | rel_hash = flaginfo.section_info[o->target_index].rel_hashes; |
252b5132 RH |
1089 | erel = external_relocs; |
1090 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
1091 | { | |
1092 | if (*rel_hash != NULL) | |
1093 | { | |
1094 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
1095 | irel->r_symndx = (*rel_hash)->indx; | |
1096 | } | |
8b956130 | 1097 | bfd_coff_swap_reloc_out (abfd, irel, erel); |
252b5132 RH |
1098 | } |
1099 | ||
cd339148 NS |
1100 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0) |
1101 | goto error_return; | |
1102 | if (obj_pe (abfd) && o->reloc_count >= 0xffff) | |
1103 | { | |
1104 | /* In PE COFF, write the count of relocs as the first | |
1105 | reloc. The header overflow bit will be set | |
1106 | elsewhere. */ | |
1107 | struct internal_reloc incount; | |
1108 | bfd_byte *excount = (bfd_byte *)bfd_malloc (relsz); | |
68ffbac6 | 1109 | |
cd339148 NS |
1110 | memset (&incount, 0, sizeof (incount)); |
1111 | incount.r_vaddr = o->reloc_count + 1; | |
2c3fc389 | 1112 | bfd_coff_swap_reloc_out (abfd, &incount, excount); |
cd339148 NS |
1113 | if (bfd_bwrite (excount, relsz, abfd) != relsz) |
1114 | /* We'll leak, but it's an error anyway. */ | |
1115 | goto error_return; | |
1116 | free (excount); | |
1117 | } | |
1118 | if (bfd_bwrite (external_relocs, | |
1119 | (bfd_size_type) relsz * o->reloc_count, abfd) | |
1120 | != (bfd_size_type) relsz * o->reloc_count) | |
252b5132 RH |
1121 | goto error_return; |
1122 | } | |
1123 | ||
1124 | free (external_relocs); | |
1125 | external_relocs = NULL; | |
1126 | } | |
1127 | ||
1128 | /* Free up the section information. */ | |
57402f1e | 1129 | if (flaginfo.section_info != NULL) |
252b5132 RH |
1130 | { |
1131 | unsigned int i; | |
1132 | ||
1133 | for (i = 0; i < abfd->section_count; i++) | |
1134 | { | |
57402f1e NC |
1135 | if (flaginfo.section_info[i].relocs != NULL) |
1136 | free (flaginfo.section_info[i].relocs); | |
1137 | if (flaginfo.section_info[i].rel_hashes != NULL) | |
1138 | free (flaginfo.section_info[i].rel_hashes); | |
252b5132 | 1139 | } |
57402f1e NC |
1140 | free (flaginfo.section_info); |
1141 | flaginfo.section_info = NULL; | |
252b5132 RH |
1142 | } |
1143 | ||
1144 | /* If we have optimized stabs strings, output them. */ | |
3722b82f | 1145 | if (coff_hash_table (info)->stab_info.stabstr != NULL) |
252b5132 RH |
1146 | { |
1147 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) | |
b34976b6 | 1148 | return FALSE; |
252b5132 RH |
1149 | } |
1150 | ||
1151 | /* Write out the string table. */ | |
1152 | if (obj_raw_syment_count (abfd) != 0 || long_section_names) | |
1153 | { | |
dc810e39 AM |
1154 | file_ptr pos; |
1155 | ||
1156 | pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz; | |
1157 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
b34976b6 | 1158 | return FALSE; |
252b5132 RH |
1159 | |
1160 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1161 | H_PUT_32 (abfd, |
57402f1e | 1162 | _bfd_stringtab_size (flaginfo.strtab) + STRING_SIZE_SIZE, |
dc810e39 | 1163 | strbuf); |
252b5132 | 1164 | #else |
dc810e39 | 1165 | #error Change H_PUT_32 above |
252b5132 RH |
1166 | #endif |
1167 | ||
dc810e39 AM |
1168 | if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
1169 | != STRING_SIZE_SIZE) | |
b34976b6 | 1170 | return FALSE; |
252b5132 | 1171 | |
57402f1e | 1172 | if (! _bfd_stringtab_emit (abfd, flaginfo.strtab)) |
b34976b6 | 1173 | return FALSE; |
d71f672e | 1174 | |
b34976b6 | 1175 | obj_coff_strings_written (abfd) = TRUE; |
252b5132 RH |
1176 | } |
1177 | ||
57402f1e | 1178 | _bfd_stringtab_free (flaginfo.strtab); |
252b5132 RH |
1179 | |
1180 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
1181 | not try to write out the symbols. */ | |
1182 | bfd_get_symcount (abfd) = 0; | |
1183 | ||
b34976b6 | 1184 | return TRUE; |
252b5132 RH |
1185 | |
1186 | error_return: | |
1187 | if (debug_merge_allocated) | |
57402f1e NC |
1188 | coff_debug_merge_hash_table_free (&flaginfo.debug_merge); |
1189 | if (flaginfo.strtab != NULL) | |
1190 | _bfd_stringtab_free (flaginfo.strtab); | |
1191 | if (flaginfo.section_info != NULL) | |
252b5132 RH |
1192 | { |
1193 | unsigned int i; | |
1194 | ||
1195 | for (i = 0; i < abfd->section_count; i++) | |
1196 | { | |
57402f1e NC |
1197 | if (flaginfo.section_info[i].relocs != NULL) |
1198 | free (flaginfo.section_info[i].relocs); | |
1199 | if (flaginfo.section_info[i].rel_hashes != NULL) | |
1200 | free (flaginfo.section_info[i].rel_hashes); | |
252b5132 | 1201 | } |
57402f1e | 1202 | free (flaginfo.section_info); |
252b5132 | 1203 | } |
57402f1e NC |
1204 | if (flaginfo.internal_syms != NULL) |
1205 | free (flaginfo.internal_syms); | |
1206 | if (flaginfo.sec_ptrs != NULL) | |
1207 | free (flaginfo.sec_ptrs); | |
1208 | if (flaginfo.sym_indices != NULL) | |
1209 | free (flaginfo.sym_indices); | |
1210 | if (flaginfo.outsyms != NULL) | |
1211 | free (flaginfo.outsyms); | |
1212 | if (flaginfo.linenos != NULL) | |
1213 | free (flaginfo.linenos); | |
1214 | if (flaginfo.contents != NULL) | |
1215 | free (flaginfo.contents); | |
1216 | if (flaginfo.external_relocs != NULL) | |
1217 | free (flaginfo.external_relocs); | |
1218 | if (flaginfo.internal_relocs != NULL) | |
1219 | free (flaginfo.internal_relocs); | |
252b5132 RH |
1220 | if (external_relocs != NULL) |
1221 | free (external_relocs); | |
b34976b6 | 1222 | return FALSE; |
252b5132 RH |
1223 | } |
1224 | ||
8b956130 | 1225 | /* Parse out a -heap <reserved>,<commit> line. */ |
252b5132 RH |
1226 | |
1227 | static char * | |
8b956130 | 1228 | dores_com (char *ptr, bfd *output_bfd, int heap) |
252b5132 | 1229 | { |
244148ad | 1230 | if (coff_data(output_bfd)->pe) |
252b5132 RH |
1231 | { |
1232 | int val = strtoul (ptr, &ptr, 0); | |
8b956130 | 1233 | |
252b5132 | 1234 | if (heap) |
dc810e39 | 1235 | pe_data(output_bfd)->pe_opthdr.SizeOfHeapReserve = val; |
252b5132 | 1236 | else |
dc810e39 | 1237 | pe_data(output_bfd)->pe_opthdr.SizeOfStackReserve = val; |
252b5132 | 1238 | |
244148ad | 1239 | if (ptr[0] == ',') |
252b5132 | 1240 | { |
dc810e39 | 1241 | val = strtoul (ptr+1, &ptr, 0); |
252b5132 | 1242 | if (heap) |
dc810e39 | 1243 | pe_data(output_bfd)->pe_opthdr.SizeOfHeapCommit = val; |
252b5132 | 1244 | else |
dc810e39 | 1245 | pe_data(output_bfd)->pe_opthdr.SizeOfStackCommit = val; |
252b5132 RH |
1246 | } |
1247 | } | |
1248 | return ptr; | |
1249 | } | |
1250 | ||
8b956130 NC |
1251 | static char * |
1252 | get_name (char *ptr, char **dst) | |
252b5132 RH |
1253 | { |
1254 | while (*ptr == ' ') | |
1255 | ptr++; | |
1256 | *dst = ptr; | |
1257 | while (*ptr && *ptr != ' ') | |
1258 | ptr++; | |
1259 | *ptr = 0; | |
1260 | return ptr+1; | |
1261 | } | |
1262 | ||
8b956130 | 1263 | /* Process any magic embedded commands in a section called .drectve. */ |
244148ad | 1264 | |
252b5132 | 1265 | static int |
8b956130 NC |
1266 | process_embedded_commands (bfd *output_bfd, |
1267 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1268 | bfd *abfd) | |
252b5132 RH |
1269 | { |
1270 | asection *sec = bfd_get_section_by_name (abfd, ".drectve"); | |
1271 | char *s; | |
1272 | char *e; | |
eea6121a | 1273 | bfd_byte *copy; |
8b956130 | 1274 | |
244148ad | 1275 | if (!sec) |
252b5132 | 1276 | return 1; |
244148ad | 1277 | |
eea6121a | 1278 | if (!bfd_malloc_and_get_section (abfd, sec, ©)) |
252b5132 | 1279 | { |
eea6121a AM |
1280 | if (copy != NULL) |
1281 | free (copy); | |
252b5132 RH |
1282 | return 0; |
1283 | } | |
f075ee0c | 1284 | e = (char *) copy + sec->size; |
8b956130 | 1285 | |
f075ee0c | 1286 | for (s = (char *) copy; s < e ; ) |
252b5132 | 1287 | { |
f075ee0c | 1288 | if (s[0] != '-') |
8b956130 NC |
1289 | { |
1290 | s++; | |
1291 | continue; | |
1292 | } | |
0112cd26 | 1293 | if (CONST_STRNEQ (s, "-attr")) |
252b5132 RH |
1294 | { |
1295 | char *name; | |
1296 | char *attribs; | |
1297 | asection *asec; | |
252b5132 RH |
1298 | int loop = 1; |
1299 | int had_write = 0; | |
252b5132 | 1300 | int had_exec= 0; |
8b956130 | 1301 | |
252b5132 | 1302 | s += 5; |
8b956130 NC |
1303 | s = get_name (s, &name); |
1304 | s = get_name (s, &attribs); | |
1305 | ||
1306 | while (loop) | |
1307 | { | |
1308 | switch (*attribs++) | |
1309 | { | |
1310 | case 'W': | |
1311 | had_write = 1; | |
1312 | break; | |
1313 | case 'R': | |
8b956130 NC |
1314 | break; |
1315 | case 'S': | |
8b956130 NC |
1316 | break; |
1317 | case 'X': | |
1318 | had_exec = 1; | |
1319 | break; | |
1320 | default: | |
1321 | loop = 0; | |
1322 | } | |
1323 | } | |
252b5132 | 1324 | asec = bfd_get_section_by_name (abfd, name); |
8b956130 NC |
1325 | if (asec) |
1326 | { | |
1327 | if (had_exec) | |
1328 | asec->flags |= SEC_CODE; | |
1329 | if (!had_write) | |
1330 | asec->flags |= SEC_READONLY; | |
1331 | } | |
252b5132 | 1332 | } |
0112cd26 NC |
1333 | else if (CONST_STRNEQ (s, "-heap")) |
1334 | s = dores_com (s + 5, output_bfd, 1); | |
8b956130 | 1335 | |
0112cd26 NC |
1336 | else if (CONST_STRNEQ (s, "-stack")) |
1337 | s = dores_com (s + 6, output_bfd, 0); | |
8b956130 | 1338 | |
c1711530 DK |
1339 | /* GNU extension for aligned commons. */ |
1340 | else if (CONST_STRNEQ (s, "-aligncomm:")) | |
1341 | { | |
1342 | /* Common symbols must be aligned on reading, as it | |
1343 | is too late to do anything here, after they have | |
1344 | already been allocated, so just skip the directive. */ | |
1345 | s += 11; | |
1346 | } | |
1347 | ||
244148ad | 1348 | else |
252b5132 RH |
1349 | s++; |
1350 | } | |
1351 | free (copy); | |
1352 | return 1; | |
1353 | } | |
1354 | ||
1355 | /* Place a marker against all symbols which are used by relocations. | |
1356 | This marker can be picked up by the 'do we skip this symbol ?' | |
1357 | loop in _bfd_coff_link_input_bfd() and used to prevent skipping | |
8b956130 | 1358 | that symbol. */ |
252b5132 RH |
1359 | |
1360 | static void | |
57402f1e | 1361 | mark_relocs (struct coff_final_link_info *flaginfo, bfd *input_bfd) |
252b5132 RH |
1362 | { |
1363 | asection * a; | |
1364 | ||
1365 | if ((bfd_get_file_flags (input_bfd) & HAS_SYMS) == 0) | |
1366 | return; | |
244148ad | 1367 | |
252b5132 RH |
1368 | for (a = input_bfd->sections; a != (asection *) NULL; a = a->next) |
1369 | { | |
1370 | struct internal_reloc * internal_relocs; | |
1371 | struct internal_reloc * irel; | |
1372 | struct internal_reloc * irelend; | |
1373 | ||
a29a8af8 KT |
1374 | if ((a->flags & SEC_RELOC) == 0 || a->reloc_count < 1 |
1375 | || a->linker_mark == 0) | |
252b5132 | 1376 | continue; |
a8fcf378 NC |
1377 | /* Don't mark relocs in excluded sections. */ |
1378 | if (a->output_section == bfd_abs_section_ptr) | |
1379 | continue; | |
252b5132 RH |
1380 | |
1381 | /* Read in the relocs. */ | |
1382 | internal_relocs = _bfd_coff_read_internal_relocs | |
b34976b6 | 1383 | (input_bfd, a, FALSE, |
57402f1e | 1384 | flaginfo->external_relocs, |
0e1862bb L |
1385 | bfd_link_relocatable (flaginfo->info), |
1386 | (bfd_link_relocatable (flaginfo->info) | |
57402f1e NC |
1387 | ? (flaginfo->section_info[ a->output_section->target_index ].relocs + a->output_section->reloc_count) |
1388 | : flaginfo->internal_relocs) | |
252b5132 | 1389 | ); |
244148ad | 1390 | |
252b5132 RH |
1391 | if (internal_relocs == NULL) |
1392 | continue; | |
1393 | ||
1394 | irel = internal_relocs; | |
1395 | irelend = irel + a->reloc_count; | |
1396 | ||
1397 | /* Place a mark in the sym_indices array (whose entries have | |
1398 | been initialised to 0) for all of the symbols that are used | |
1399 | in the relocation table. This will then be picked up in the | |
8b956130 | 1400 | skip/don't-skip pass. */ |
252b5132 | 1401 | for (; irel < irelend; irel++) |
06ab6faf AM |
1402 | if ((unsigned long) irel->r_symndx < obj_raw_syment_count (input_bfd)) |
1403 | flaginfo->sym_indices[irel->r_symndx] = -1; | |
252b5132 RH |
1404 | } |
1405 | } | |
1406 | ||
1407 | /* Link an input file into the linker output file. This function | |
1408 | handles all the sections and relocations of the input file at once. */ | |
1409 | ||
b34976b6 | 1410 | bfd_boolean |
57402f1e | 1411 | _bfd_coff_link_input_bfd (struct coff_final_link_info *flaginfo, bfd *input_bfd) |
252b5132 | 1412 | { |
b2d638c7 ILT |
1413 | unsigned int n_tmask = coff_data (input_bfd)->local_n_tmask; |
1414 | unsigned int n_btshft = coff_data (input_bfd)->local_n_btshft; | |
b34976b6 | 1415 | bfd_boolean (*adjust_symndx) |
8b956130 NC |
1416 | (bfd *, struct bfd_link_info *, bfd *, asection *, |
1417 | struct internal_reloc *, bfd_boolean *); | |
252b5132 RH |
1418 | bfd *output_bfd; |
1419 | const char *strings; | |
1420 | bfd_size_type syment_base; | |
b34976b6 | 1421 | bfd_boolean copy, hash; |
252b5132 RH |
1422 | bfd_size_type isymesz; |
1423 | bfd_size_type osymesz; | |
1424 | bfd_size_type linesz; | |
1425 | bfd_byte *esym; | |
1426 | bfd_byte *esym_end; | |
1427 | struct internal_syment *isymp; | |
1428 | asection **secpp; | |
1429 | long *indexp; | |
1430 | unsigned long output_index; | |
1431 | bfd_byte *outsym; | |
1432 | struct coff_link_hash_entry **sym_hash; | |
1433 | asection *o; | |
1434 | ||
1435 | /* Move all the symbols to the output file. */ | |
1436 | ||
57402f1e | 1437 | output_bfd = flaginfo->output_bfd; |
252b5132 RH |
1438 | strings = NULL; |
1439 | syment_base = obj_raw_syment_count (output_bfd); | |
1440 | isymesz = bfd_coff_symesz (input_bfd); | |
1441 | osymesz = bfd_coff_symesz (output_bfd); | |
1442 | linesz = bfd_coff_linesz (input_bfd); | |
1443 | BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)); | |
1444 | ||
b34976b6 | 1445 | copy = FALSE; |
57402f1e | 1446 | if (! flaginfo->info->keep_memory) |
b34976b6 AM |
1447 | copy = TRUE; |
1448 | hash = TRUE; | |
b560e2ac | 1449 | if (flaginfo->info->traditional_format) |
b34976b6 | 1450 | hash = FALSE; |
252b5132 RH |
1451 | |
1452 | if (! _bfd_coff_get_external_symbols (input_bfd)) | |
b34976b6 | 1453 | return FALSE; |
252b5132 RH |
1454 | |
1455 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
1456 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
57402f1e NC |
1457 | isymp = flaginfo->internal_syms; |
1458 | secpp = flaginfo->sec_ptrs; | |
1459 | indexp = flaginfo->sym_indices; | |
252b5132 | 1460 | output_index = syment_base; |
57402f1e | 1461 | outsym = flaginfo->outsyms; |
252b5132 | 1462 | |
8b956130 | 1463 | if (coff_data (output_bfd)->pe |
57402f1e | 1464 | && ! process_embedded_commands (output_bfd, flaginfo->info, input_bfd)) |
8b956130 | 1465 | return FALSE; |
252b5132 | 1466 | |
8b956130 NC |
1467 | /* If we are going to perform relocations and also strip/discard some |
1468 | symbols then we must make sure that we do not strip/discard those | |
1469 | symbols that are going to be involved in the relocations. */ | |
57402f1e NC |
1470 | if (( flaginfo->info->strip != strip_none |
1471 | || flaginfo->info->discard != discard_none) | |
0e1862bb | 1472 | && bfd_link_relocatable (flaginfo->info)) |
252b5132 | 1473 | { |
8b956130 | 1474 | /* Mark the symbol array as 'not-used'. */ |
244148ad KH |
1475 | memset (indexp, 0, obj_raw_syment_count (input_bfd) * sizeof * indexp); |
1476 | ||
57402f1e | 1477 | mark_relocs (flaginfo, input_bfd); |
252b5132 RH |
1478 | } |
1479 | ||
1480 | while (esym < esym_end) | |
1481 | { | |
1482 | struct internal_syment isym; | |
5d54c628 | 1483 | enum coff_symbol_classification classification; |
b34976b6 AM |
1484 | bfd_boolean skip; |
1485 | bfd_boolean global; | |
1486 | bfd_boolean dont_skip_symbol; | |
252b5132 RH |
1487 | int add; |
1488 | ||
8b956130 | 1489 | bfd_coff_swap_sym_in (input_bfd, esym, isymp); |
252b5132 RH |
1490 | |
1491 | /* Make a copy of *isymp so that the relocate_section function | |
1492 | always sees the original values. This is more reliable than | |
1493 | always recomputing the symbol value even if we are stripping | |
1494 | the symbol. */ | |
1495 | isym = *isymp; | |
1496 | ||
5d54c628 ILT |
1497 | classification = bfd_coff_classify_symbol (input_bfd, &isym); |
1498 | switch (classification) | |
252b5132 | 1499 | { |
5d54c628 ILT |
1500 | default: |
1501 | abort (); | |
1502 | case COFF_SYMBOL_GLOBAL: | |
1503 | case COFF_SYMBOL_PE_SECTION: | |
1504 | case COFF_SYMBOL_LOCAL: | |
1505 | *secpp = coff_section_from_bfd_index (input_bfd, isym.n_scnum); | |
1506 | break; | |
1507 | case COFF_SYMBOL_COMMON: | |
1508 | *secpp = bfd_com_section_ptr; | |
1509 | break; | |
1510 | case COFF_SYMBOL_UNDEFINED: | |
1511 | *secpp = bfd_und_section_ptr; | |
1512 | break; | |
252b5132 RH |
1513 | } |
1514 | ||
1515 | /* Extract the flag indicating if this symbol is used by a | |
1516 | relocation. */ | |
57402f1e NC |
1517 | if ((flaginfo->info->strip != strip_none |
1518 | || flaginfo->info->discard != discard_none) | |
0e1862bb | 1519 | && bfd_link_relocatable (flaginfo->info)) |
252b5132 RH |
1520 | dont_skip_symbol = *indexp; |
1521 | else | |
b34976b6 | 1522 | dont_skip_symbol = FALSE; |
244148ad | 1523 | |
252b5132 RH |
1524 | *indexp = -1; |
1525 | ||
b34976b6 AM |
1526 | skip = FALSE; |
1527 | global = FALSE; | |
252b5132 RH |
1528 | add = 1 + isym.n_numaux; |
1529 | ||
1530 | /* If we are stripping all symbols, we want to skip this one. */ | |
57402f1e | 1531 | if (flaginfo->info->strip == strip_all && ! dont_skip_symbol) |
b34976b6 | 1532 | skip = TRUE; |
252b5132 RH |
1533 | |
1534 | if (! skip) | |
1535 | { | |
5d54c628 | 1536 | switch (classification) |
252b5132 | 1537 | { |
5d54c628 ILT |
1538 | default: |
1539 | abort (); | |
1540 | case COFF_SYMBOL_GLOBAL: | |
1541 | case COFF_SYMBOL_COMMON: | |
1542 | case COFF_SYMBOL_PE_SECTION: | |
252b5132 RH |
1543 | /* This is a global symbol. Global symbols come at the |
1544 | end of the symbol table, so skip them for now. | |
1545 | Locally defined function symbols, however, are an | |
1546 | exception, and are not moved to the end. */ | |
b34976b6 | 1547 | global = TRUE; |
5d54c628 | 1548 | if (! ISFCN (isym.n_type)) |
b34976b6 | 1549 | skip = TRUE; |
5d54c628 ILT |
1550 | break; |
1551 | ||
1552 | case COFF_SYMBOL_UNDEFINED: | |
1553 | /* Undefined symbols are left for the end. */ | |
b34976b6 AM |
1554 | global = TRUE; |
1555 | skip = TRUE; | |
5d54c628 ILT |
1556 | break; |
1557 | ||
1558 | case COFF_SYMBOL_LOCAL: | |
252b5132 RH |
1559 | /* This is a local symbol. Skip it if we are discarding |
1560 | local symbols. */ | |
57402f1e | 1561 | if (flaginfo->info->discard == discard_all && ! dont_skip_symbol) |
b34976b6 | 1562 | skip = TRUE; |
5d54c628 | 1563 | break; |
252b5132 RH |
1564 | } |
1565 | } | |
1566 | ||
440c4607 NC |
1567 | #ifndef COFF_WITH_PE |
1568 | /* Skip section symbols for sections which are not going to be | |
862517b6 | 1569 | emitted. */ |
440c4607 | 1570 | if (!skip |
f0803690 | 1571 | && !dont_skip_symbol |
440c4607 NC |
1572 | && isym.n_sclass == C_STAT |
1573 | && isym.n_type == T_NULL | |
f0803690 AM |
1574 | && isym.n_numaux > 0 |
1575 | && ((*secpp)->output_section == bfd_abs_section_ptr | |
1576 | || bfd_section_removed_from_list (output_bfd, | |
1577 | (*secpp)->output_section))) | |
3922a8c1 | 1578 | skip = TRUE; |
440c4607 NC |
1579 | #endif |
1580 | ||
252b5132 RH |
1581 | /* If we stripping debugging symbols, and this is a debugging |
1582 | symbol, then skip it. FIXME: gas sets the section to N_ABS | |
1583 | for some types of debugging symbols; I don't know if this is | |
1584 | a bug or not. In any case, we handle it here. */ | |
1585 | if (! skip | |
57402f1e | 1586 | && flaginfo->info->strip == strip_debugger |
252b5132 RH |
1587 | && ! dont_skip_symbol |
1588 | && (isym.n_scnum == N_DEBUG | |
1589 | || (isym.n_scnum == N_ABS | |
1590 | && (isym.n_sclass == C_AUTO | |
1591 | || isym.n_sclass == C_REG | |
1592 | || isym.n_sclass == C_MOS | |
1593 | || isym.n_sclass == C_MOE | |
1594 | || isym.n_sclass == C_MOU | |
1595 | || isym.n_sclass == C_ARG | |
1596 | || isym.n_sclass == C_REGPARM | |
1597 | || isym.n_sclass == C_FIELD | |
1598 | || isym.n_sclass == C_EOS)))) | |
b34976b6 | 1599 | skip = TRUE; |
252b5132 RH |
1600 | |
1601 | /* If some symbols are stripped based on the name, work out the | |
1602 | name and decide whether to skip this symbol. */ | |
1603 | if (! skip | |
57402f1e NC |
1604 | && (flaginfo->info->strip == strip_some |
1605 | || flaginfo->info->discard == discard_l)) | |
252b5132 RH |
1606 | { |
1607 | const char *name; | |
1608 | char buf[SYMNMLEN + 1]; | |
1609 | ||
1610 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); | |
1611 | if (name == NULL) | |
b34976b6 | 1612 | return FALSE; |
252b5132 RH |
1613 | |
1614 | if (! dont_skip_symbol | |
57402f1e NC |
1615 | && ((flaginfo->info->strip == strip_some |
1616 | && (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, | |
b34976b6 | 1617 | FALSE) == NULL)) |
252b5132 | 1618 | || (! global |
57402f1e | 1619 | && flaginfo->info->discard == discard_l |
252b5132 | 1620 | && bfd_is_local_label_name (input_bfd, name)))) |
b34976b6 | 1621 | skip = TRUE; |
252b5132 RH |
1622 | } |
1623 | ||
1624 | /* If this is an enum, struct, or union tag, see if we have | |
1625 | already output an identical type. */ | |
1626 | if (! skip | |
b560e2ac | 1627 | && !flaginfo->info->traditional_format |
252b5132 RH |
1628 | && (isym.n_sclass == C_ENTAG |
1629 | || isym.n_sclass == C_STRTAG | |
1630 | || isym.n_sclass == C_UNTAG) | |
1631 | && isym.n_numaux == 1) | |
1632 | { | |
1633 | const char *name; | |
1634 | char buf[SYMNMLEN + 1]; | |
1635 | struct coff_debug_merge_hash_entry *mh; | |
1636 | struct coff_debug_merge_type *mt; | |
1637 | union internal_auxent aux; | |
1638 | struct coff_debug_merge_element **epp; | |
1639 | bfd_byte *esl, *eslend; | |
1640 | struct internal_syment *islp; | |
dc810e39 | 1641 | bfd_size_type amt; |
252b5132 RH |
1642 | |
1643 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); | |
1644 | if (name == NULL) | |
b34976b6 | 1645 | return FALSE; |
252b5132 RH |
1646 | |
1647 | /* Ignore fake names invented by compiler; treat them all as | |
1648 | the same name. */ | |
1649 | if (*name == '~' || *name == '.' || *name == '$' | |
1650 | || (*name == bfd_get_symbol_leading_char (input_bfd) | |
1651 | && (name[1] == '~' || name[1] == '.' || name[1] == '$'))) | |
1652 | name = ""; | |
1653 | ||
57402f1e | 1654 | mh = coff_debug_merge_hash_lookup (&flaginfo->debug_merge, name, |
b34976b6 | 1655 | TRUE, TRUE); |
252b5132 | 1656 | if (mh == NULL) |
b34976b6 | 1657 | return FALSE; |
252b5132 RH |
1658 | |
1659 | /* Allocate memory to hold type information. If this turns | |
1660 | out to be a duplicate, we pass this address to | |
1661 | bfd_release. */ | |
dc810e39 | 1662 | amt = sizeof (struct coff_debug_merge_type); |
a50b1753 | 1663 | mt = (struct coff_debug_merge_type *) bfd_alloc (input_bfd, amt); |
252b5132 | 1664 | if (mt == NULL) |
b34976b6 | 1665 | return FALSE; |
96d56e9f | 1666 | mt->type_class = isym.n_sclass; |
252b5132 RH |
1667 | |
1668 | /* Pick up the aux entry, which points to the end of the tag | |
1669 | entries. */ | |
8b956130 | 1670 | bfd_coff_swap_aux_in (input_bfd, (esym + isymesz), |
252b5132 | 1671 | isym.n_type, isym.n_sclass, 0, isym.n_numaux, |
8b956130 | 1672 | &aux); |
252b5132 RH |
1673 | |
1674 | /* Gather the elements. */ | |
1675 | epp = &mt->elements; | |
1676 | mt->elements = NULL; | |
1677 | islp = isymp + 2; | |
1678 | esl = esym + 2 * isymesz; | |
1679 | eslend = ((bfd_byte *) obj_coff_external_syms (input_bfd) | |
1680 | + aux.x_sym.x_fcnary.x_fcn.x_endndx.l * isymesz); | |
1681 | while (esl < eslend) | |
1682 | { | |
1683 | const char *elename; | |
1684 | char elebuf[SYMNMLEN + 1]; | |
00692651 | 1685 | char *name_copy; |
252b5132 | 1686 | |
8b956130 | 1687 | bfd_coff_swap_sym_in (input_bfd, esl, islp); |
252b5132 | 1688 | |
dc810e39 | 1689 | amt = sizeof (struct coff_debug_merge_element); |
a50b1753 NC |
1690 | *epp = (struct coff_debug_merge_element *) |
1691 | bfd_alloc (input_bfd, amt); | |
252b5132 | 1692 | if (*epp == NULL) |
b34976b6 | 1693 | return FALSE; |
252b5132 RH |
1694 | |
1695 | elename = _bfd_coff_internal_syment_name (input_bfd, islp, | |
1696 | elebuf); | |
1697 | if (elename == NULL) | |
b34976b6 | 1698 | return FALSE; |
252b5132 | 1699 | |
dc810e39 | 1700 | amt = strlen (elename) + 1; |
a50b1753 | 1701 | name_copy = (char *) bfd_alloc (input_bfd, amt); |
00692651 | 1702 | if (name_copy == NULL) |
b34976b6 | 1703 | return FALSE; |
00692651 | 1704 | strcpy (name_copy, elename); |
252b5132 | 1705 | |
00692651 | 1706 | (*epp)->name = name_copy; |
252b5132 RH |
1707 | (*epp)->type = islp->n_type; |
1708 | (*epp)->tagndx = 0; | |
1709 | if (islp->n_numaux >= 1 | |
1710 | && islp->n_type != T_NULL | |
1711 | && islp->n_sclass != C_EOS) | |
1712 | { | |
1713 | union internal_auxent eleaux; | |
1714 | long indx; | |
1715 | ||
8b956130 | 1716 | bfd_coff_swap_aux_in (input_bfd, (esl + isymesz), |
252b5132 | 1717 | islp->n_type, islp->n_sclass, 0, |
8b956130 | 1718 | islp->n_numaux, &eleaux); |
252b5132 RH |
1719 | indx = eleaux.x_sym.x_tagndx.l; |
1720 | ||
1721 | /* FIXME: If this tagndx entry refers to a symbol | |
1722 | defined later in this file, we just ignore it. | |
1723 | Handling this correctly would be tedious, and may | |
1724 | not be required. */ | |
252b5132 RH |
1725 | if (indx > 0 |
1726 | && (indx | |
1727 | < ((esym - | |
1728 | (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
1729 | / (long) isymesz))) | |
1730 | { | |
57402f1e | 1731 | (*epp)->tagndx = flaginfo->sym_indices[indx]; |
252b5132 RH |
1732 | if ((*epp)->tagndx < 0) |
1733 | (*epp)->tagndx = 0; | |
1734 | } | |
1735 | } | |
1736 | epp = &(*epp)->next; | |
1737 | *epp = NULL; | |
1738 | ||
1739 | esl += (islp->n_numaux + 1) * isymesz; | |
1740 | islp += islp->n_numaux + 1; | |
1741 | } | |
1742 | ||
1743 | /* See if we already have a definition which matches this | |
1744 | type. We always output the type if it has no elements, | |
1745 | for simplicity. */ | |
1746 | if (mt->elements == NULL) | |
8b956130 | 1747 | bfd_release (input_bfd, mt); |
252b5132 RH |
1748 | else |
1749 | { | |
1750 | struct coff_debug_merge_type *mtl; | |
1751 | ||
1752 | for (mtl = mh->types; mtl != NULL; mtl = mtl->next) | |
1753 | { | |
1754 | struct coff_debug_merge_element *me, *mel; | |
1755 | ||
96d56e9f | 1756 | if (mtl->type_class != mt->type_class) |
252b5132 RH |
1757 | continue; |
1758 | ||
1759 | for (me = mt->elements, mel = mtl->elements; | |
1760 | me != NULL && mel != NULL; | |
1761 | me = me->next, mel = mel->next) | |
1762 | { | |
1763 | if (strcmp (me->name, mel->name) != 0 | |
1764 | || me->type != mel->type | |
1765 | || me->tagndx != mel->tagndx) | |
1766 | break; | |
1767 | } | |
1768 | ||
1769 | if (me == NULL && mel == NULL) | |
1770 | break; | |
1771 | } | |
1772 | ||
1773 | if (mtl == NULL || (bfd_size_type) mtl->indx >= syment_base) | |
1774 | { | |
1775 | /* This is the first definition of this type. */ | |
1776 | mt->indx = output_index; | |
1777 | mt->next = mh->types; | |
1778 | mh->types = mt; | |
1779 | } | |
1780 | else | |
1781 | { | |
1782 | /* This is a redefinition which can be merged. */ | |
8b956130 | 1783 | bfd_release (input_bfd, mt); |
252b5132 RH |
1784 | *indexp = mtl->indx; |
1785 | add = (eslend - esym) / isymesz; | |
b34976b6 | 1786 | skip = TRUE; |
252b5132 RH |
1787 | } |
1788 | } | |
1789 | } | |
1790 | ||
1791 | /* We now know whether we are to skip this symbol or not. */ | |
1792 | if (! skip) | |
1793 | { | |
1794 | /* Adjust the symbol in order to output it. */ | |
1795 | ||
1796 | if (isym._n._n_n._n_zeroes == 0 | |
1797 | && isym._n._n_n._n_offset != 0) | |
1798 | { | |
1799 | const char *name; | |
1800 | bfd_size_type indx; | |
1801 | ||
1802 | /* This symbol has a long name. Enter it in the string | |
1803 | table we are building. Note that we do not check | |
1804 | bfd_coff_symname_in_debug. That is only true for | |
1805 | XCOFF, and XCOFF requires different linking code | |
1806 | anyhow. */ | |
8b956130 | 1807 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, NULL); |
252b5132 | 1808 | if (name == NULL) |
b34976b6 | 1809 | return FALSE; |
57402f1e | 1810 | indx = _bfd_stringtab_add (flaginfo->strtab, name, hash, copy); |
252b5132 | 1811 | if (indx == (bfd_size_type) -1) |
b34976b6 | 1812 | return FALSE; |
252b5132 RH |
1813 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; |
1814 | } | |
1815 | ||
8add8e30 | 1816 | switch (isym.n_sclass) |
252b5132 | 1817 | { |
8add8e30 ILT |
1818 | case C_AUTO: |
1819 | case C_MOS: | |
1820 | case C_EOS: | |
1821 | case C_MOE: | |
1822 | case C_MOU: | |
1823 | case C_UNTAG: | |
1824 | case C_STRTAG: | |
1825 | case C_ENTAG: | |
1826 | case C_TPDEF: | |
1827 | case C_ARG: | |
1828 | case C_USTATIC: | |
1829 | case C_REG: | |
1830 | case C_REGPARM: | |
1831 | case C_FIELD: | |
1832 | /* The symbol value should not be modified. */ | |
1833 | break; | |
1834 | ||
1835 | case C_FCN: | |
1836 | if (obj_pe (input_bfd) | |
1837 | && strcmp (isym.n_name, ".bf") != 0 | |
1838 | && isym.n_scnum > 0) | |
1839 | { | |
1840 | /* For PE, .lf and .ef get their value left alone, | |
1841 | while .bf gets relocated. However, they all have | |
1842 | "real" section numbers, and need to be moved into | |
1843 | the new section. */ | |
1844 | isym.n_scnum = (*secpp)->output_section->target_index; | |
1845 | break; | |
1846 | } | |
1847 | /* Fall through. */ | |
1848 | default: | |
1849 | case C_LABEL: /* Not completely sure about these 2 */ | |
1850 | case C_EXTDEF: | |
1851 | case C_BLOCK: | |
1852 | case C_EFCN: | |
1853 | case C_NULL: | |
1854 | case C_EXT: | |
1855 | case C_STAT: | |
1856 | case C_SECTION: | |
1857 | case C_NT_WEAK: | |
1858 | /* Compute new symbol location. */ | |
1859 | if (isym.n_scnum > 0) | |
1860 | { | |
1861 | isym.n_scnum = (*secpp)->output_section->target_index; | |
1862 | isym.n_value += (*secpp)->output_offset; | |
1863 | if (! obj_pe (input_bfd)) | |
1864 | isym.n_value -= (*secpp)->vma; | |
57402f1e | 1865 | if (! obj_pe (flaginfo->output_bfd)) |
8add8e30 ILT |
1866 | isym.n_value += (*secpp)->output_section->vma; |
1867 | } | |
1868 | break; | |
1869 | ||
1870 | case C_FILE: | |
1871 | /* The value of a C_FILE symbol is the symbol index of | |
1872 | the next C_FILE symbol. The value of the last C_FILE | |
1873 | symbol is the symbol index to the first external | |
1874 | symbol (actually, coff_renumber_symbols does not get | |
1875 | this right--it just sets the value of the last C_FILE | |
1876 | symbol to zero--and nobody has ever complained about | |
1877 | it). We try to get this right, below, just before we | |
1878 | write the symbols out, but in the general case we may | |
1879 | have to write the symbol out twice. */ | |
57402f1e NC |
1880 | if (flaginfo->last_file_index != -1 |
1881 | && flaginfo->last_file.n_value != (bfd_vma) output_index) | |
252b5132 | 1882 | { |
8add8e30 ILT |
1883 | /* We must correct the value of the last C_FILE |
1884 | entry. */ | |
57402f1e NC |
1885 | flaginfo->last_file.n_value = output_index; |
1886 | if ((bfd_size_type) flaginfo->last_file_index >= syment_base) | |
252b5132 RH |
1887 | { |
1888 | /* The last C_FILE symbol is in this input file. */ | |
1889 | bfd_coff_swap_sym_out (output_bfd, | |
57402f1e NC |
1890 | &flaginfo->last_file, |
1891 | (flaginfo->outsyms | |
1892 | + ((flaginfo->last_file_index | |
8b956130 NC |
1893 | - syment_base) |
1894 | * osymesz))); | |
252b5132 RH |
1895 | } |
1896 | else | |
1897 | { | |
dc810e39 AM |
1898 | file_ptr pos; |
1899 | ||
252b5132 RH |
1900 | /* We have already written out the last C_FILE |
1901 | symbol. We need to write it out again. We | |
1902 | borrow *outsym temporarily. */ | |
1903 | bfd_coff_swap_sym_out (output_bfd, | |
57402f1e | 1904 | &flaginfo->last_file, outsym); |
dc810e39 | 1905 | pos = obj_sym_filepos (output_bfd); |
57402f1e | 1906 | pos += flaginfo->last_file_index * osymesz; |
dc810e39 AM |
1907 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
1908 | || bfd_bwrite (outsym, osymesz, output_bfd) != osymesz) | |
b34976b6 | 1909 | return FALSE; |
252b5132 RH |
1910 | } |
1911 | } | |
1912 | ||
57402f1e NC |
1913 | flaginfo->last_file_index = output_index; |
1914 | flaginfo->last_file = isym; | |
8add8e30 | 1915 | break; |
252b5132 RH |
1916 | } |
1917 | ||
1918 | /* If doing task linking, convert normal global function symbols to | |
e4202681 | 1919 | static functions. */ |
57402f1e | 1920 | if (flaginfo->info->task_link && IS_EXTERNAL (input_bfd, isym)) |
252b5132 RH |
1921 | isym.n_sclass = C_STAT; |
1922 | ||
1923 | /* Output the symbol. */ | |
8b956130 | 1924 | bfd_coff_swap_sym_out (output_bfd, &isym, outsym); |
252b5132 RH |
1925 | |
1926 | *indexp = output_index; | |
1927 | ||
1928 | if (global) | |
1929 | { | |
1930 | long indx; | |
1931 | struct coff_link_hash_entry *h; | |
1932 | ||
1933 | indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
1934 | / isymesz); | |
1935 | h = obj_coff_sym_hashes (input_bfd)[indx]; | |
1936 | if (h == NULL) | |
1937 | { | |
1938 | /* This can happen if there were errors earlier in | |
1939 | the link. */ | |
1940 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1941 | return FALSE; |
252b5132 RH |
1942 | } |
1943 | h->indx = output_index; | |
1944 | } | |
1945 | ||
1946 | output_index += add; | |
1947 | outsym += add * osymesz; | |
1948 | } | |
1949 | ||
1950 | esym += add * isymesz; | |
1951 | isymp += add; | |
1952 | ++secpp; | |
1953 | ++indexp; | |
1954 | for (--add; add > 0; --add) | |
1955 | { | |
1956 | *secpp++ = NULL; | |
1957 | *indexp++ = -1; | |
1958 | } | |
1959 | } | |
1960 | ||
1961 | /* Fix up the aux entries. This must be done in a separate pass, | |
1962 | because we don't know the correct symbol indices until we have | |
1963 | already decided which symbols we are going to keep. */ | |
252b5132 RH |
1964 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); |
1965 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
57402f1e NC |
1966 | isymp = flaginfo->internal_syms; |
1967 | indexp = flaginfo->sym_indices; | |
252b5132 | 1968 | sym_hash = obj_coff_sym_hashes (input_bfd); |
57402f1e | 1969 | outsym = flaginfo->outsyms; |
8b956130 | 1970 | |
252b5132 RH |
1971 | while (esym < esym_end) |
1972 | { | |
1973 | int add; | |
1974 | ||
1975 | add = 1 + isymp->n_numaux; | |
1976 | ||
1977 | if ((*indexp < 0 | |
1978 | || (bfd_size_type) *indexp < syment_base) | |
1979 | && (*sym_hash == NULL | |
1980 | || (*sym_hash)->auxbfd != input_bfd)) | |
1981 | esym += add * isymesz; | |
1982 | else | |
1983 | { | |
1984 | struct coff_link_hash_entry *h; | |
1985 | int i; | |
1986 | ||
1987 | h = NULL; | |
1988 | if (*indexp < 0) | |
1989 | { | |
1990 | h = *sym_hash; | |
1991 | ||
1992 | /* The m68k-motorola-sysv assembler will sometimes | |
1993 | generate two symbols with the same name, but only one | |
1994 | will have aux entries. */ | |
1995 | BFD_ASSERT (isymp->n_numaux == 0 | |
cfc9dfb1 | 1996 | || h->numaux == 0 |
252b5132 RH |
1997 | || h->numaux == isymp->n_numaux); |
1998 | } | |
1999 | ||
2000 | esym += isymesz; | |
2001 | ||
2002 | if (h == NULL) | |
2003 | outsym += osymesz; | |
2004 | ||
2005 | /* Handle the aux entries. This handling is based on | |
2006 | coff_pointerize_aux. I don't know if it always correct. */ | |
2007 | for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) | |
2008 | { | |
2009 | union internal_auxent aux; | |
2010 | union internal_auxent *auxp; | |
2011 | ||
cfc9dfb1 | 2012 | if (h != NULL && h->aux != NULL && (h->numaux > i)) |
252b5132 RH |
2013 | auxp = h->aux + i; |
2014 | else | |
2015 | { | |
8b956130 NC |
2016 | bfd_coff_swap_aux_in (input_bfd, esym, isymp->n_type, |
2017 | isymp->n_sclass, i, isymp->n_numaux, &aux); | |
252b5132 RH |
2018 | auxp = &aux; |
2019 | } | |
2020 | ||
2021 | if (isymp->n_sclass == C_FILE) | |
2022 | { | |
2023 | /* If this is a long filename, we must put it in the | |
2024 | string table. */ | |
2025 | if (auxp->x_file.x_n.x_zeroes == 0 | |
2026 | && auxp->x_file.x_n.x_offset != 0) | |
2027 | { | |
2028 | const char *filename; | |
2029 | bfd_size_type indx; | |
2030 | ||
2031 | BFD_ASSERT (auxp->x_file.x_n.x_offset | |
2032 | >= STRING_SIZE_SIZE); | |
2033 | if (strings == NULL) | |
2034 | { | |
2035 | strings = _bfd_coff_read_string_table (input_bfd); | |
2036 | if (strings == NULL) | |
b34976b6 | 2037 | return FALSE; |
252b5132 | 2038 | } |
5a3f568b NC |
2039 | if ((bfd_size_type) auxp->x_file.x_n.x_offset >= obj_coff_strings_len (input_bfd)) |
2040 | filename = _("<corrupt>"); | |
2041 | else | |
2042 | filename = strings + auxp->x_file.x_n.x_offset; | |
57402f1e | 2043 | indx = _bfd_stringtab_add (flaginfo->strtab, filename, |
252b5132 RH |
2044 | hash, copy); |
2045 | if (indx == (bfd_size_type) -1) | |
b34976b6 | 2046 | return FALSE; |
252b5132 RH |
2047 | auxp->x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; |
2048 | } | |
2049 | } | |
0c429e07 NC |
2050 | else if ((isymp->n_sclass != C_STAT || isymp->n_type != T_NULL) |
2051 | && isymp->n_sclass != C_NT_WEAK) | |
252b5132 RH |
2052 | { |
2053 | unsigned long indx; | |
2054 | ||
2055 | if (ISFCN (isymp->n_type) | |
2056 | || ISTAG (isymp->n_sclass) | |
2057 | || isymp->n_sclass == C_BLOCK | |
2058 | || isymp->n_sclass == C_FCN) | |
2059 | { | |
2060 | indx = auxp->x_sym.x_fcnary.x_fcn.x_endndx.l; | |
2061 | if (indx > 0 | |
2062 | && indx < obj_raw_syment_count (input_bfd)) | |
2063 | { | |
2064 | /* We look forward through the symbol for | |
2065 | the index of the next symbol we are going | |
2066 | to include. I don't know if this is | |
2067 | entirely right. */ | |
57402f1e NC |
2068 | while ((flaginfo->sym_indices[indx] < 0 |
2069 | || ((bfd_size_type) flaginfo->sym_indices[indx] | |
252b5132 RH |
2070 | < syment_base)) |
2071 | && indx < obj_raw_syment_count (input_bfd)) | |
2072 | ++indx; | |
2073 | if (indx >= obj_raw_syment_count (input_bfd)) | |
2074 | indx = output_index; | |
2075 | else | |
57402f1e | 2076 | indx = flaginfo->sym_indices[indx]; |
252b5132 RH |
2077 | auxp->x_sym.x_fcnary.x_fcn.x_endndx.l = indx; |
2078 | } | |
2079 | } | |
2080 | ||
2081 | indx = auxp->x_sym.x_tagndx.l; | |
2082 | if (indx > 0 && indx < obj_raw_syment_count (input_bfd)) | |
2083 | { | |
2084 | long symindx; | |
2085 | ||
57402f1e | 2086 | symindx = flaginfo->sym_indices[indx]; |
252b5132 RH |
2087 | if (symindx < 0) |
2088 | auxp->x_sym.x_tagndx.l = 0; | |
2089 | else | |
2090 | auxp->x_sym.x_tagndx.l = symindx; | |
2091 | } | |
2092 | ||
2093 | /* The .bf symbols are supposed to be linked through | |
2094 | the endndx field. We need to carry this list | |
2095 | across object files. */ | |
2096 | if (i == 0 | |
2097 | && h == NULL | |
2098 | && isymp->n_sclass == C_FCN | |
2099 | && (isymp->_n._n_n._n_zeroes != 0 | |
2100 | || isymp->_n._n_n._n_offset == 0) | |
2101 | && isymp->_n._n_name[0] == '.' | |
2102 | && isymp->_n._n_name[1] == 'b' | |
2103 | && isymp->_n._n_name[2] == 'f' | |
2104 | && isymp->_n._n_name[3] == '\0') | |
2105 | { | |
57402f1e | 2106 | if (flaginfo->last_bf_index != -1) |
252b5132 | 2107 | { |
57402f1e | 2108 | flaginfo->last_bf.x_sym.x_fcnary.x_fcn.x_endndx.l = |
252b5132 RH |
2109 | *indexp; |
2110 | ||
57402f1e | 2111 | if ((bfd_size_type) flaginfo->last_bf_index |
252b5132 RH |
2112 | >= syment_base) |
2113 | { | |
8b956130 | 2114 | void *auxout; |
252b5132 RH |
2115 | |
2116 | /* The last .bf symbol is in this input | |
2117 | file. This will only happen if the | |
2118 | assembler did not set up the .bf | |
2119 | endndx symbols correctly. */ | |
57402f1e NC |
2120 | auxout = (flaginfo->outsyms |
2121 | + ((flaginfo->last_bf_index | |
8b956130 NC |
2122 | - syment_base) |
2123 | * osymesz)); | |
2124 | ||
252b5132 | 2125 | bfd_coff_swap_aux_out (output_bfd, |
57402f1e | 2126 | &flaginfo->last_bf, |
252b5132 RH |
2127 | isymp->n_type, |
2128 | isymp->n_sclass, | |
2129 | 0, isymp->n_numaux, | |
2130 | auxout); | |
2131 | } | |
2132 | else | |
2133 | { | |
dc810e39 AM |
2134 | file_ptr pos; |
2135 | ||
252b5132 RH |
2136 | /* We have already written out the last |
2137 | .bf aux entry. We need to write it | |
2138 | out again. We borrow *outsym | |
2139 | temporarily. FIXME: This case should | |
2140 | be made faster. */ | |
2141 | bfd_coff_swap_aux_out (output_bfd, | |
57402f1e | 2142 | &flaginfo->last_bf, |
252b5132 RH |
2143 | isymp->n_type, |
2144 | isymp->n_sclass, | |
2145 | 0, isymp->n_numaux, | |
8b956130 | 2146 | outsym); |
dc810e39 | 2147 | pos = obj_sym_filepos (output_bfd); |
57402f1e | 2148 | pos += flaginfo->last_bf_index * osymesz; |
dc810e39 AM |
2149 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
2150 | || (bfd_bwrite (outsym, osymesz, output_bfd) | |
2151 | != osymesz)) | |
b34976b6 | 2152 | return FALSE; |
252b5132 RH |
2153 | } |
2154 | } | |
2155 | ||
2156 | if (auxp->x_sym.x_fcnary.x_fcn.x_endndx.l != 0) | |
57402f1e | 2157 | flaginfo->last_bf_index = -1; |
252b5132 RH |
2158 | else |
2159 | { | |
2160 | /* The endndx field of this aux entry must | |
2161 | be updated with the symbol number of the | |
2162 | next .bf symbol. */ | |
57402f1e NC |
2163 | flaginfo->last_bf = *auxp; |
2164 | flaginfo->last_bf_index = (((outsym - flaginfo->outsyms) | |
252b5132 RH |
2165 | / osymesz) |
2166 | + syment_base); | |
2167 | } | |
2168 | } | |
2169 | } | |
2170 | ||
2171 | if (h == NULL) | |
2172 | { | |
8b956130 | 2173 | bfd_coff_swap_aux_out (output_bfd, auxp, isymp->n_type, |
252b5132 | 2174 | isymp->n_sclass, i, isymp->n_numaux, |
8b956130 | 2175 | outsym); |
252b5132 RH |
2176 | outsym += osymesz; |
2177 | } | |
2178 | ||
2179 | esym += isymesz; | |
2180 | } | |
2181 | } | |
2182 | ||
2183 | indexp += add; | |
2184 | isymp += add; | |
2185 | sym_hash += add; | |
2186 | } | |
2187 | ||
2188 | /* Relocate the line numbers, unless we are stripping them. */ | |
57402f1e NC |
2189 | if (flaginfo->info->strip == strip_none |
2190 | || flaginfo->info->strip == strip_some) | |
252b5132 RH |
2191 | { |
2192 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
2193 | { | |
2194 | bfd_vma offset; | |
2195 | bfd_byte *eline; | |
2196 | bfd_byte *elineend; | |
b545f675 | 2197 | bfd_byte *oeline; |
b34976b6 | 2198 | bfd_boolean skipping; |
dc810e39 AM |
2199 | file_ptr pos; |
2200 | bfd_size_type amt; | |
252b5132 RH |
2201 | |
2202 | /* FIXME: If SEC_HAS_CONTENTS is not for the section, then | |
2203 | build_link_order in ldwrite.c will not have created a | |
2204 | link order, which means that we will not have seen this | |
2205 | input section in _bfd_coff_final_link, which means that | |
2206 | we will not have allocated space for the line numbers of | |
2207 | this section. I don't think line numbers can be | |
2208 | meaningful for a section which does not have | |
2209 | SEC_HAS_CONTENTS set, but, if they do, this must be | |
2210 | changed. */ | |
2211 | if (o->lineno_count == 0 | |
2212 | || (o->output_section->flags & SEC_HAS_CONTENTS) == 0) | |
2213 | continue; | |
2214 | ||
2215 | if (bfd_seek (input_bfd, o->line_filepos, SEEK_SET) != 0 | |
57402f1e | 2216 | || bfd_bread (flaginfo->linenos, linesz * o->lineno_count, |
252b5132 | 2217 | input_bfd) != linesz * o->lineno_count) |
b34976b6 | 2218 | return FALSE; |
252b5132 RH |
2219 | |
2220 | offset = o->output_section->vma + o->output_offset - o->vma; | |
57402f1e NC |
2221 | eline = flaginfo->linenos; |
2222 | oeline = flaginfo->linenos; | |
252b5132 | 2223 | elineend = eline + linesz * o->lineno_count; |
b34976b6 | 2224 | skipping = FALSE; |
252b5132 RH |
2225 | for (; eline < elineend; eline += linesz) |
2226 | { | |
2227 | struct internal_lineno iline; | |
2228 | ||
8b956130 | 2229 | bfd_coff_swap_lineno_in (input_bfd, eline, &iline); |
252b5132 RH |
2230 | |
2231 | if (iline.l_lnno != 0) | |
2232 | iline.l_addr.l_paddr += offset; | |
2233 | else if (iline.l_addr.l_symndx >= 0 | |
2234 | && ((unsigned long) iline.l_addr.l_symndx | |
2235 | < obj_raw_syment_count (input_bfd))) | |
2236 | { | |
2237 | long indx; | |
2238 | ||
57402f1e | 2239 | indx = flaginfo->sym_indices[iline.l_addr.l_symndx]; |
252b5132 RH |
2240 | |
2241 | if (indx < 0) | |
2242 | { | |
2243 | /* These line numbers are attached to a symbol | |
b545f675 ILT |
2244 | which we are stripping. We must discard the |
2245 | line numbers because reading them back with | |
2246 | no associated symbol (or associating them all | |
2247 | with symbol #0) will fail. We can't regain | |
2248 | the space in the output file, but at least | |
2249 | they're dense. */ | |
b34976b6 | 2250 | skipping = TRUE; |
252b5132 RH |
2251 | } |
2252 | else | |
2253 | { | |
2254 | struct internal_syment is; | |
2255 | union internal_auxent ia; | |
2256 | ||
2257 | /* Fix up the lnnoptr field in the aux entry of | |
2258 | the symbol. It turns out that we can't do | |
2259 | this when we modify the symbol aux entries, | |
2260 | because gas sometimes screws up the lnnoptr | |
2261 | field and makes it an offset from the start | |
2262 | of the line numbers rather than an absolute | |
2263 | file index. */ | |
2264 | bfd_coff_swap_sym_in (output_bfd, | |
57402f1e | 2265 | (flaginfo->outsyms |
8b956130 NC |
2266 | + ((indx - syment_base) |
2267 | * osymesz)), &is); | |
252b5132 RH |
2268 | if ((ISFCN (is.n_type) |
2269 | || is.n_sclass == C_BLOCK) | |
2270 | && is.n_numaux >= 1) | |
2271 | { | |
8b956130 | 2272 | void *auxptr; |
252b5132 | 2273 | |
57402f1e | 2274 | auxptr = (flaginfo->outsyms |
8b956130 NC |
2275 | + ((indx - syment_base + 1) |
2276 | * osymesz)); | |
252b5132 RH |
2277 | bfd_coff_swap_aux_in (output_bfd, auxptr, |
2278 | is.n_type, is.n_sclass, | |
8b956130 | 2279 | 0, is.n_numaux, &ia); |
252b5132 RH |
2280 | ia.x_sym.x_fcnary.x_fcn.x_lnnoptr = |
2281 | (o->output_section->line_filepos | |
2282 | + o->output_section->lineno_count * linesz | |
57402f1e | 2283 | + eline - flaginfo->linenos); |
8b956130 | 2284 | bfd_coff_swap_aux_out (output_bfd, &ia, |
252b5132 RH |
2285 | is.n_type, is.n_sclass, 0, |
2286 | is.n_numaux, auxptr); | |
2287 | } | |
b545f675 | 2288 | |
b34976b6 | 2289 | skipping = FALSE; |
252b5132 RH |
2290 | } |
2291 | ||
2292 | iline.l_addr.l_symndx = indx; | |
2293 | } | |
2294 | ||
b545f675 ILT |
2295 | if (!skipping) |
2296 | { | |
8b956130 | 2297 | bfd_coff_swap_lineno_out (output_bfd, &iline, oeline); |
b545f675 ILT |
2298 | oeline += linesz; |
2299 | } | |
252b5132 RH |
2300 | } |
2301 | ||
dc810e39 AM |
2302 | pos = o->output_section->line_filepos; |
2303 | pos += o->output_section->lineno_count * linesz; | |
57402f1e | 2304 | amt = oeline - flaginfo->linenos; |
dc810e39 | 2305 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
57402f1e | 2306 | || bfd_bwrite (flaginfo->linenos, amt, output_bfd) != amt) |
b34976b6 | 2307 | return FALSE; |
252b5132 | 2308 | |
dc810e39 | 2309 | o->output_section->lineno_count += amt / linesz; |
252b5132 RH |
2310 | } |
2311 | } | |
2312 | ||
2313 | /* If we swapped out a C_FILE symbol, guess that the next C_FILE | |
2314 | symbol will be the first symbol in the next input file. In the | |
2315 | normal case, this will save us from writing out the C_FILE symbol | |
2316 | again. */ | |
57402f1e NC |
2317 | if (flaginfo->last_file_index != -1 |
2318 | && (bfd_size_type) flaginfo->last_file_index >= syment_base) | |
252b5132 | 2319 | { |
57402f1e NC |
2320 | flaginfo->last_file.n_value = output_index; |
2321 | bfd_coff_swap_sym_out (output_bfd, &flaginfo->last_file, | |
2322 | (flaginfo->outsyms | |
2323 | + ((flaginfo->last_file_index - syment_base) | |
8b956130 | 2324 | * osymesz))); |
252b5132 RH |
2325 | } |
2326 | ||
2327 | /* Write the modified symbols to the output file. */ | |
57402f1e | 2328 | if (outsym > flaginfo->outsyms) |
252b5132 | 2329 | { |
dc810e39 AM |
2330 | file_ptr pos; |
2331 | bfd_size_type amt; | |
2332 | ||
2333 | pos = obj_sym_filepos (output_bfd) + syment_base * osymesz; | |
57402f1e | 2334 | amt = outsym - flaginfo->outsyms; |
dc810e39 | 2335 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
57402f1e | 2336 | || bfd_bwrite (flaginfo->outsyms, amt, output_bfd) != amt) |
b34976b6 | 2337 | return FALSE; |
252b5132 RH |
2338 | |
2339 | BFD_ASSERT ((obj_raw_syment_count (output_bfd) | |
57402f1e | 2340 | + (outsym - flaginfo->outsyms) / osymesz) |
252b5132 RH |
2341 | == output_index); |
2342 | ||
2343 | obj_raw_syment_count (output_bfd) = output_index; | |
2344 | } | |
2345 | ||
2346 | /* Relocate the contents of each section. */ | |
2347 | adjust_symndx = coff_backend_info (input_bfd)->_bfd_coff_adjust_symndx; | |
2348 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
2349 | { | |
2350 | bfd_byte *contents; | |
2351 | struct coff_section_tdata *secdata; | |
2352 | ||
2353 | if (! o->linker_mark) | |
8b956130 NC |
2354 | /* This section was omitted from the link. */ |
2355 | continue; | |
252b5132 | 2356 | |
3722b82f AM |
2357 | if ((o->flags & SEC_LINKER_CREATED) != 0) |
2358 | continue; | |
2359 | ||
252b5132 | 2360 | if ((o->flags & SEC_HAS_CONTENTS) == 0 |
eea6121a | 2361 | || (o->size == 0 && (o->flags & SEC_RELOC) == 0)) |
252b5132 RH |
2362 | { |
2363 | if ((o->flags & SEC_RELOC) != 0 | |
2364 | && o->reloc_count != 0) | |
2365 | { | |
4eca0228 | 2366 | _bfd_error_handler |
695344c0 | 2367 | /* xgettext: c-format */ |
d003868e AM |
2368 | (_("%B: relocs in section `%A', but it has no contents"), |
2369 | input_bfd, o); | |
252b5132 | 2370 | bfd_set_error (bfd_error_no_contents); |
b34976b6 | 2371 | return FALSE; |
252b5132 RH |
2372 | } |
2373 | ||
2374 | continue; | |
2375 | } | |
2376 | ||
2377 | secdata = coff_section_data (input_bfd, o); | |
2378 | if (secdata != NULL && secdata->contents != NULL) | |
2379 | contents = secdata->contents; | |
2380 | else | |
2381 | { | |
57402f1e | 2382 | contents = flaginfo->contents; |
a29a8af8 KT |
2383 | if (! bfd_get_full_section_contents (input_bfd, o, &contents)) |
2384 | return FALSE; | |
252b5132 RH |
2385 | } |
2386 | ||
2387 | if ((o->flags & SEC_RELOC) != 0) | |
2388 | { | |
2389 | int target_index; | |
2390 | struct internal_reloc *internal_relocs; | |
2391 | struct internal_reloc *irel; | |
2392 | ||
2393 | /* Read in the relocs. */ | |
2394 | target_index = o->output_section->target_index; | |
2395 | internal_relocs = (_bfd_coff_read_internal_relocs | |
57402f1e | 2396 | (input_bfd, o, FALSE, flaginfo->external_relocs, |
0e1862bb L |
2397 | bfd_link_relocatable (flaginfo->info), |
2398 | (bfd_link_relocatable (flaginfo->info) | |
57402f1e | 2399 | ? (flaginfo->section_info[target_index].relocs |
252b5132 | 2400 | + o->output_section->reloc_count) |
57402f1e | 2401 | : flaginfo->internal_relocs))); |
a29a8af8 KT |
2402 | if (internal_relocs == NULL |
2403 | && o->reloc_count > 0) | |
b34976b6 | 2404 | return FALSE; |
252b5132 | 2405 | |
730035f7 DK |
2406 | /* Run through the relocs looking for relocs against symbols |
2407 | coming from discarded sections and complain about them. */ | |
2408 | irel = internal_relocs; | |
2409 | for (; irel < &internal_relocs[o->reloc_count]; irel++) | |
2410 | { | |
2411 | struct coff_link_hash_entry *h; | |
2412 | asection *ps = NULL; | |
2413 | long symndx = irel->r_symndx; | |
2414 | if (symndx < 0) | |
2415 | continue; | |
2416 | h = obj_coff_sym_hashes (input_bfd)[symndx]; | |
2417 | if (h == NULL) | |
2418 | continue; | |
2419 | while (h->root.type == bfd_link_hash_indirect | |
2420 | || h->root.type == bfd_link_hash_warning) | |
2421 | h = (struct coff_link_hash_entry *) h->root.u.i.link; | |
2422 | if (h->root.type == bfd_link_hash_defined | |
2423 | || h->root.type == bfd_link_hash_defweak) | |
2424 | ps = h->root.u.def.section; | |
2425 | if (ps == NULL) | |
2426 | continue; | |
2427 | /* Complain if definition comes from an excluded section. */ | |
2428 | if (ps->flags & SEC_EXCLUDE) | |
57402f1e | 2429 | (*flaginfo->info->callbacks->einfo) |
695344c0 | 2430 | /* xgettext: c-format */ |
730035f7 DK |
2431 | (_("%X`%s' referenced in section `%A' of %B: " |
2432 | "defined in discarded section `%A' of %B\n"), | |
2433 | h->root.root.string, o, input_bfd, ps, ps->owner); | |
2434 | } | |
2435 | ||
252b5132 RH |
2436 | /* Call processor specific code to relocate the section |
2437 | contents. */ | |
57402f1e | 2438 | if (! bfd_coff_relocate_section (output_bfd, flaginfo->info, |
252b5132 RH |
2439 | input_bfd, o, |
2440 | contents, | |
2441 | internal_relocs, | |
57402f1e NC |
2442 | flaginfo->internal_syms, |
2443 | flaginfo->sec_ptrs)) | |
b34976b6 | 2444 | return FALSE; |
252b5132 | 2445 | |
0e1862bb | 2446 | if (bfd_link_relocatable (flaginfo->info)) |
252b5132 RH |
2447 | { |
2448 | bfd_vma offset; | |
2449 | struct internal_reloc *irelend; | |
2450 | struct coff_link_hash_entry **rel_hash; | |
2451 | ||
2452 | offset = o->output_section->vma + o->output_offset - o->vma; | |
2453 | irel = internal_relocs; | |
2454 | irelend = irel + o->reloc_count; | |
57402f1e | 2455 | rel_hash = (flaginfo->section_info[target_index].rel_hashes |
252b5132 RH |
2456 | + o->output_section->reloc_count); |
2457 | for (; irel < irelend; irel++, rel_hash++) | |
2458 | { | |
2459 | struct coff_link_hash_entry *h; | |
b34976b6 | 2460 | bfd_boolean adjusted; |
252b5132 RH |
2461 | |
2462 | *rel_hash = NULL; | |
2463 | ||
2464 | /* Adjust the reloc address and symbol index. */ | |
252b5132 RH |
2465 | irel->r_vaddr += offset; |
2466 | ||
2467 | if (irel->r_symndx == -1) | |
2468 | continue; | |
2469 | ||
2470 | if (adjust_symndx) | |
2471 | { | |
57402f1e | 2472 | if (! (*adjust_symndx) (output_bfd, flaginfo->info, |
252b5132 RH |
2473 | input_bfd, o, irel, |
2474 | &adjusted)) | |
b34976b6 | 2475 | return FALSE; |
252b5132 RH |
2476 | if (adjusted) |
2477 | continue; | |
2478 | } | |
2479 | ||
2480 | h = obj_coff_sym_hashes (input_bfd)[irel->r_symndx]; | |
2481 | if (h != NULL) | |
2482 | { | |
2483 | /* This is a global symbol. */ | |
2484 | if (h->indx >= 0) | |
2485 | irel->r_symndx = h->indx; | |
2486 | else | |
2487 | { | |
2488 | /* This symbol is being written at the end | |
2489 | of the file, and we do not yet know the | |
2490 | symbol index. We save the pointer to the | |
2491 | hash table entry in the rel_hash list. | |
2492 | We set the indx field to -2 to indicate | |
2493 | that this symbol must not be stripped. */ | |
2494 | *rel_hash = h; | |
2495 | h->indx = -2; | |
2496 | } | |
2497 | } | |
2498 | else | |
2499 | { | |
2500 | long indx; | |
2501 | ||
57402f1e | 2502 | indx = flaginfo->sym_indices[irel->r_symndx]; |
252b5132 RH |
2503 | if (indx != -1) |
2504 | irel->r_symndx = indx; | |
2505 | else | |
2506 | { | |
2507 | struct internal_syment *is; | |
2508 | const char *name; | |
2509 | char buf[SYMNMLEN + 1]; | |
2510 | ||
2511 | /* This reloc is against a symbol we are | |
2512 | stripping. This should have been handled | |
2513 | by the 'dont_skip_symbol' code in the while | |
244148ad | 2514 | loop at the top of this function. */ |
57402f1e | 2515 | is = flaginfo->internal_syms + irel->r_symndx; |
252b5132 RH |
2516 | |
2517 | name = (_bfd_coff_internal_syment_name | |
2518 | (input_bfd, is, buf)); | |
2519 | if (name == NULL) | |
b34976b6 | 2520 | return FALSE; |
252b5132 | 2521 | |
1a72702b AM |
2522 | (*flaginfo->info->callbacks->unattached_reloc) |
2523 | (flaginfo->info, name, input_bfd, o, irel->r_vaddr); | |
252b5132 RH |
2524 | } |
2525 | } | |
2526 | } | |
2527 | ||
2528 | o->output_section->reloc_count += o->reloc_count; | |
2529 | } | |
2530 | } | |
2531 | ||
2532 | /* Write out the modified section contents. */ | |
2533 | if (secdata == NULL || secdata->stab_info == NULL) | |
2534 | { | |
dc810e39 | 2535 | file_ptr loc = o->output_offset * bfd_octets_per_byte (output_bfd); |
252b5132 | 2536 | if (! bfd_set_section_contents (output_bfd, o->output_section, |
eea6121a | 2537 | contents, loc, o->size)) |
b34976b6 | 2538 | return FALSE; |
252b5132 RH |
2539 | } |
2540 | else | |
2541 | { | |
2542 | if (! (_bfd_write_section_stabs | |
57402f1e | 2543 | (output_bfd, &coff_hash_table (flaginfo->info)->stab_info, |
252b5132 | 2544 | o, &secdata->stab_info, contents))) |
b34976b6 | 2545 | return FALSE; |
252b5132 RH |
2546 | } |
2547 | } | |
2548 | ||
57402f1e | 2549 | if (! flaginfo->info->keep_memory |
8b956130 NC |
2550 | && ! _bfd_coff_free_symbols (input_bfd)) |
2551 | return FALSE; | |
252b5132 | 2552 | |
b34976b6 | 2553 | return TRUE; |
252b5132 RH |
2554 | } |
2555 | ||
7686d77d | 2556 | /* Write out a global symbol. Called via bfd_hash_traverse. */ |
252b5132 | 2557 | |
b34976b6 | 2558 | bfd_boolean |
7686d77d | 2559 | _bfd_coff_write_global_sym (struct bfd_hash_entry *bh, void *data) |
252b5132 | 2560 | { |
7686d77d | 2561 | struct coff_link_hash_entry *h = (struct coff_link_hash_entry *) bh; |
57402f1e | 2562 | struct coff_final_link_info *flaginfo = (struct coff_final_link_info *) data; |
252b5132 RH |
2563 | bfd *output_bfd; |
2564 | struct internal_syment isym; | |
2565 | bfd_size_type symesz; | |
2566 | unsigned int i; | |
dc810e39 | 2567 | file_ptr pos; |
252b5132 | 2568 | |
57402f1e | 2569 | output_bfd = flaginfo->output_bfd; |
252b5132 | 2570 | |
e92d460e AM |
2571 | if (h->root.type == bfd_link_hash_warning) |
2572 | { | |
2573 | h = (struct coff_link_hash_entry *) h->root.u.i.link; | |
2574 | if (h->root.type == bfd_link_hash_new) | |
b34976b6 | 2575 | return TRUE; |
e92d460e AM |
2576 | } |
2577 | ||
252b5132 | 2578 | if (h->indx >= 0) |
b34976b6 | 2579 | return TRUE; |
252b5132 RH |
2580 | |
2581 | if (h->indx != -2 | |
57402f1e NC |
2582 | && (flaginfo->info->strip == strip_all |
2583 | || (flaginfo->info->strip == strip_some | |
2584 | && (bfd_hash_lookup (flaginfo->info->keep_hash, | |
b34976b6 | 2585 | h->root.root.string, FALSE, FALSE) |
252b5132 | 2586 | == NULL)))) |
b34976b6 | 2587 | return TRUE; |
252b5132 RH |
2588 | |
2589 | switch (h->root.type) | |
2590 | { | |
2591 | default: | |
2592 | case bfd_link_hash_new: | |
e92d460e | 2593 | case bfd_link_hash_warning: |
252b5132 | 2594 | abort (); |
b34976b6 | 2595 | return FALSE; |
252b5132 RH |
2596 | |
2597 | case bfd_link_hash_undefined: | |
2598 | case bfd_link_hash_undefweak: | |
2599 | isym.n_scnum = N_UNDEF; | |
2600 | isym.n_value = 0; | |
2601 | break; | |
2602 | ||
2603 | case bfd_link_hash_defined: | |
2604 | case bfd_link_hash_defweak: | |
2605 | { | |
2606 | asection *sec; | |
2607 | ||
2608 | sec = h->root.u.def.section->output_section; | |
2609 | if (bfd_is_abs_section (sec)) | |
2610 | isym.n_scnum = N_ABS; | |
2611 | else | |
2612 | isym.n_scnum = sec->target_index; | |
2613 | isym.n_value = (h->root.u.def.value | |
2614 | + h->root.u.def.section->output_offset); | |
57402f1e | 2615 | if (! obj_pe (flaginfo->output_bfd)) |
252b5132 RH |
2616 | isym.n_value += sec->vma; |
2617 | } | |
2618 | break; | |
2619 | ||
2620 | case bfd_link_hash_common: | |
2621 | isym.n_scnum = N_UNDEF; | |
2622 | isym.n_value = h->root.u.c.size; | |
2623 | break; | |
2624 | ||
2625 | case bfd_link_hash_indirect: | |
252b5132 | 2626 | /* Just ignore these. They can't be handled anyhow. */ |
b34976b6 | 2627 | return TRUE; |
252b5132 RH |
2628 | } |
2629 | ||
2630 | if (strlen (h->root.root.string) <= SYMNMLEN) | |
2631 | strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN); | |
2632 | else | |
2633 | { | |
b34976b6 | 2634 | bfd_boolean hash; |
252b5132 RH |
2635 | bfd_size_type indx; |
2636 | ||
b34976b6 | 2637 | hash = TRUE; |
b560e2ac | 2638 | if (flaginfo->info->traditional_format) |
b34976b6 | 2639 | hash = FALSE; |
57402f1e | 2640 | indx = _bfd_stringtab_add (flaginfo->strtab, h->root.root.string, hash, |
b34976b6 | 2641 | FALSE); |
252b5132 RH |
2642 | if (indx == (bfd_size_type) -1) |
2643 | { | |
57402f1e | 2644 | flaginfo->failed = TRUE; |
b34976b6 | 2645 | return FALSE; |
252b5132 RH |
2646 | } |
2647 | isym._n._n_n._n_zeroes = 0; | |
2648 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
2649 | } | |
2650 | ||
96d56e9f | 2651 | isym.n_sclass = h->symbol_class; |
252b5132 RH |
2652 | isym.n_type = h->type; |
2653 | ||
2654 | if (isym.n_sclass == C_NULL) | |
2655 | isym.n_sclass = C_EXT; | |
2656 | ||
2657 | /* If doing task linking and this is the pass where we convert | |
2658 | defined globals to statics, then do that conversion now. If the | |
2659 | symbol is not being converted, just ignore it and it will be | |
e4202681 | 2660 | output during a later pass. */ |
57402f1e | 2661 | if (flaginfo->global_to_static) |
252b5132 | 2662 | { |
e4202681 | 2663 | if (! IS_EXTERNAL (output_bfd, isym)) |
b34976b6 | 2664 | return TRUE; |
e4202681 | 2665 | |
252b5132 RH |
2666 | isym.n_sclass = C_STAT; |
2667 | } | |
2668 | ||
5c4491d3 | 2669 | /* When a weak symbol is not overridden by a strong one, |
e4202681 | 2670 | turn it into an external symbol when not building a |
1049f94e | 2671 | shared or relocatable object. */ |
0e1862bb L |
2672 | if (! bfd_link_pic (flaginfo->info) |
2673 | && ! bfd_link_relocatable (flaginfo->info) | |
57402f1e | 2674 | && IS_WEAK_EXTERNAL (flaginfo->output_bfd, isym)) |
e4202681 NC |
2675 | isym.n_sclass = C_EXT; |
2676 | ||
252b5132 | 2677 | isym.n_numaux = h->numaux; |
244148ad | 2678 | |
57402f1e | 2679 | bfd_coff_swap_sym_out (output_bfd, &isym, flaginfo->outsyms); |
252b5132 RH |
2680 | |
2681 | symesz = bfd_coff_symesz (output_bfd); | |
2682 | ||
dc810e39 AM |
2683 | pos = obj_sym_filepos (output_bfd); |
2684 | pos += obj_raw_syment_count (output_bfd) * symesz; | |
2685 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
57402f1e | 2686 | || bfd_bwrite (flaginfo->outsyms, symesz, output_bfd) != symesz) |
252b5132 | 2687 | { |
57402f1e | 2688 | flaginfo->failed = TRUE; |
b34976b6 | 2689 | return FALSE; |
252b5132 RH |
2690 | } |
2691 | ||
2692 | h->indx = obj_raw_syment_count (output_bfd); | |
2693 | ||
2694 | ++obj_raw_syment_count (output_bfd); | |
2695 | ||
2c546cd8 ILT |
2696 | /* Write out any associated aux entries. Most of the aux entries |
2697 | will have been modified in _bfd_coff_link_input_bfd. We have to | |
2698 | handle section aux entries here, now that we have the final | |
2699 | relocation and line number counts. */ | |
252b5132 RH |
2700 | for (i = 0; i < isym.n_numaux; i++) |
2701 | { | |
2c546cd8 ILT |
2702 | union internal_auxent *auxp; |
2703 | ||
2704 | auxp = h->aux + i; | |
2705 | ||
2706 | /* Look for a section aux entry here using the same tests that | |
2707 | coff_swap_aux_out uses. */ | |
2708 | if (i == 0 | |
2709 | && (isym.n_sclass == C_STAT | |
2710 | || isym.n_sclass == C_HIDDEN) | |
2711 | && isym.n_type == T_NULL | |
2712 | && (h->root.type == bfd_link_hash_defined | |
2713 | || h->root.type == bfd_link_hash_defweak)) | |
2714 | { | |
2715 | asection *sec; | |
2716 | ||
2717 | sec = h->root.u.def.section->output_section; | |
2718 | if (sec != NULL) | |
2719 | { | |
eea6121a | 2720 | auxp->x_scn.x_scnlen = sec->size; |
2c546cd8 ILT |
2721 | |
2722 | /* For PE, an overflow on the final link reportedly does | |
2723 | not matter. FIXME: Why not? */ | |
2c546cd8 ILT |
2724 | if (sec->reloc_count > 0xffff |
2725 | && (! obj_pe (output_bfd) | |
0e1862bb | 2726 | || bfd_link_relocatable (flaginfo->info))) |
4eca0228 | 2727 | _bfd_error_handler |
695344c0 | 2728 | /* xgettext: c-format */ |
2c546cd8 ILT |
2729 | (_("%s: %s: reloc overflow: 0x%lx > 0xffff"), |
2730 | bfd_get_filename (output_bfd), | |
2731 | bfd_get_section_name (output_bfd, sec), | |
2732 | sec->reloc_count); | |
2733 | ||
2734 | if (sec->lineno_count > 0xffff | |
2735 | && (! obj_pe (output_bfd) | |
0e1862bb | 2736 | || bfd_link_relocatable (flaginfo->info))) |
4eca0228 | 2737 | _bfd_error_handler |
695344c0 | 2738 | /* xgettext: c-format */ |
2c546cd8 ILT |
2739 | (_("%s: warning: %s: line number overflow: 0x%lx > 0xffff"), |
2740 | bfd_get_filename (output_bfd), | |
2741 | bfd_get_section_name (output_bfd, sec), | |
2742 | sec->lineno_count); | |
2743 | ||
2744 | auxp->x_scn.x_nreloc = sec->reloc_count; | |
2745 | auxp->x_scn.x_nlinno = sec->lineno_count; | |
2746 | auxp->x_scn.x_checksum = 0; | |
2747 | auxp->x_scn.x_associated = 0; | |
2748 | auxp->x_scn.x_comdat = 0; | |
2749 | } | |
2750 | } | |
2751 | ||
8b956130 | 2752 | bfd_coff_swap_aux_out (output_bfd, auxp, isym.n_type, |
dc810e39 | 2753 | isym.n_sclass, (int) i, isym.n_numaux, |
57402f1e NC |
2754 | flaginfo->outsyms); |
2755 | if (bfd_bwrite (flaginfo->outsyms, symesz, output_bfd) != symesz) | |
252b5132 | 2756 | { |
57402f1e | 2757 | flaginfo->failed = TRUE; |
b34976b6 | 2758 | return FALSE; |
252b5132 RH |
2759 | } |
2760 | ++obj_raw_syment_count (output_bfd); | |
2761 | } | |
2762 | ||
b34976b6 | 2763 | return TRUE; |
252b5132 RH |
2764 | } |
2765 | ||
2766 | /* Write out task global symbols, converting them to statics. Called | |
2767 | via coff_link_hash_traverse. Calls bfd_coff_write_global_sym to do | |
244148ad | 2768 | the dirty work, if the symbol we are processing needs conversion. */ |
252b5132 | 2769 | |
b34976b6 | 2770 | bfd_boolean |
8b956130 | 2771 | _bfd_coff_write_task_globals (struct coff_link_hash_entry *h, void *data) |
252b5132 | 2772 | { |
57402f1e | 2773 | struct coff_final_link_info *flaginfo = (struct coff_final_link_info *) data; |
b34976b6 AM |
2774 | bfd_boolean rtnval = TRUE; |
2775 | bfd_boolean save_global_to_static; | |
252b5132 | 2776 | |
e92d460e AM |
2777 | if (h->root.type == bfd_link_hash_warning) |
2778 | h = (struct coff_link_hash_entry *) h->root.u.i.link; | |
2779 | ||
252b5132 RH |
2780 | if (h->indx < 0) |
2781 | { | |
2782 | switch (h->root.type) | |
2783 | { | |
2784 | case bfd_link_hash_defined: | |
2785 | case bfd_link_hash_defweak: | |
57402f1e NC |
2786 | save_global_to_static = flaginfo->global_to_static; |
2787 | flaginfo->global_to_static = TRUE; | |
7686d77d | 2788 | rtnval = _bfd_coff_write_global_sym (&h->root.root, data); |
57402f1e | 2789 | flaginfo->global_to_static = save_global_to_static; |
252b5132 RH |
2790 | break; |
2791 | default: | |
2792 | break; | |
2793 | } | |
2794 | } | |
2795 | return (rtnval); | |
2796 | } | |
2797 | ||
2798 | /* Handle a link order which is supposed to generate a reloc. */ | |
2799 | ||
b34976b6 | 2800 | bfd_boolean |
8b956130 | 2801 | _bfd_coff_reloc_link_order (bfd *output_bfd, |
57402f1e | 2802 | struct coff_final_link_info *flaginfo, |
8b956130 NC |
2803 | asection *output_section, |
2804 | struct bfd_link_order *link_order) | |
252b5132 RH |
2805 | { |
2806 | reloc_howto_type *howto; | |
2807 | struct internal_reloc *irel; | |
2808 | struct coff_link_hash_entry **rel_hash_ptr; | |
2809 | ||
2810 | howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
2811 | if (howto == NULL) | |
2812 | { | |
2813 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2814 | return FALSE; |
252b5132 RH |
2815 | } |
2816 | ||
2817 | if (link_order->u.reloc.p->addend != 0) | |
2818 | { | |
2819 | bfd_size_type size; | |
2820 | bfd_byte *buf; | |
2821 | bfd_reloc_status_type rstat; | |
b34976b6 | 2822 | bfd_boolean ok; |
dc810e39 | 2823 | file_ptr loc; |
252b5132 RH |
2824 | |
2825 | size = bfd_get_reloc_size (howto); | |
a50b1753 | 2826 | buf = (bfd_byte *) bfd_zmalloc (size); |
6346d5ca | 2827 | if (buf == NULL && size != 0) |
b34976b6 | 2828 | return FALSE; |
252b5132 RH |
2829 | |
2830 | rstat = _bfd_relocate_contents (howto, output_bfd, | |
dc810e39 AM |
2831 | (bfd_vma) link_order->u.reloc.p->addend,\ |
2832 | buf); | |
252b5132 RH |
2833 | switch (rstat) |
2834 | { | |
2835 | case bfd_reloc_ok: | |
2836 | break; | |
2837 | default: | |
2838 | case bfd_reloc_outofrange: | |
2839 | abort (); | |
2840 | case bfd_reloc_overflow: | |
1a72702b AM |
2841 | (*flaginfo->info->callbacks->reloc_overflow) |
2842 | (flaginfo->info, NULL, | |
2843 | (link_order->type == bfd_section_reloc_link_order | |
2844 | ? bfd_section_name (output_bfd, | |
2845 | link_order->u.reloc.p->u.section) | |
2846 | : link_order->u.reloc.p->u.name), | |
2847 | howto->name, link_order->u.reloc.p->addend, | |
2848 | (bfd *) NULL, (asection *) NULL, (bfd_vma) 0); | |
252b5132 RH |
2849 | break; |
2850 | } | |
dc810e39 | 2851 | loc = link_order->offset * bfd_octets_per_byte (output_bfd); |
8b956130 | 2852 | ok = bfd_set_section_contents (output_bfd, output_section, buf, |
dc810e39 | 2853 | loc, size); |
252b5132 RH |
2854 | free (buf); |
2855 | if (! ok) | |
b34976b6 | 2856 | return FALSE; |
252b5132 RH |
2857 | } |
2858 | ||
2859 | /* Store the reloc information in the right place. It will get | |
2860 | swapped and written out at the end of the final_link routine. */ | |
57402f1e | 2861 | irel = (flaginfo->section_info[output_section->target_index].relocs |
252b5132 | 2862 | + output_section->reloc_count); |
57402f1e | 2863 | rel_hash_ptr = (flaginfo->section_info[output_section->target_index].rel_hashes |
252b5132 RH |
2864 | + output_section->reloc_count); |
2865 | ||
2866 | memset (irel, 0, sizeof (struct internal_reloc)); | |
2867 | *rel_hash_ptr = NULL; | |
2868 | ||
2869 | irel->r_vaddr = output_section->vma + link_order->offset; | |
2870 | ||
2871 | if (link_order->type == bfd_section_reloc_link_order) | |
2872 | { | |
2873 | /* We need to somehow locate a symbol in the right section. The | |
2874 | symbol must either have a value of zero, or we must adjust | |
2875 | the addend by the value of the symbol. FIXME: Write this | |
2876 | when we need it. The old linker couldn't handle this anyhow. */ | |
2877 | abort (); | |
2878 | *rel_hash_ptr = NULL; | |
2879 | irel->r_symndx = 0; | |
2880 | } | |
2881 | else | |
2882 | { | |
2883 | struct coff_link_hash_entry *h; | |
2884 | ||
2885 | h = ((struct coff_link_hash_entry *) | |
57402f1e | 2886 | bfd_wrapped_link_hash_lookup (output_bfd, flaginfo->info, |
252b5132 | 2887 | link_order->u.reloc.p->u.name, |
b34976b6 | 2888 | FALSE, FALSE, TRUE)); |
252b5132 RH |
2889 | if (h != NULL) |
2890 | { | |
2891 | if (h->indx >= 0) | |
2892 | irel->r_symndx = h->indx; | |
2893 | else | |
2894 | { | |
2895 | /* Set the index to -2 to force this symbol to get | |
2896 | written out. */ | |
2897 | h->indx = -2; | |
2898 | *rel_hash_ptr = h; | |
2899 | irel->r_symndx = 0; | |
2900 | } | |
2901 | } | |
2902 | else | |
2903 | { | |
1a72702b AM |
2904 | (*flaginfo->info->callbacks->unattached_reloc) |
2905 | (flaginfo->info, link_order->u.reloc.p->u.name, | |
2906 | (bfd *) NULL, (asection *) NULL, (bfd_vma) 0); | |
252b5132 RH |
2907 | irel->r_symndx = 0; |
2908 | } | |
2909 | } | |
2910 | ||
2911 | /* FIXME: Is this always right? */ | |
2912 | irel->r_type = howto->type; | |
2913 | ||
2914 | /* r_size is only used on the RS/6000, which needs its own linker | |
2915 | routines anyhow. r_extern is only used for ECOFF. */ | |
2916 | ||
2917 | /* FIXME: What is the right value for r_offset? Is zero OK? */ | |
252b5132 RH |
2918 | ++output_section->reloc_count; |
2919 | ||
b34976b6 | 2920 | return TRUE; |
252b5132 RH |
2921 | } |
2922 | ||
2923 | /* A basic reloc handling routine which may be used by processors with | |
2924 | simple relocs. */ | |
2925 | ||
b34976b6 | 2926 | bfd_boolean |
8b956130 NC |
2927 | _bfd_coff_generic_relocate_section (bfd *output_bfd, |
2928 | struct bfd_link_info *info, | |
2929 | bfd *input_bfd, | |
2930 | asection *input_section, | |
2931 | bfd_byte *contents, | |
2932 | struct internal_reloc *relocs, | |
2933 | struct internal_syment *syms, | |
2934 | asection **sections) | |
252b5132 RH |
2935 | { |
2936 | struct internal_reloc *rel; | |
2937 | struct internal_reloc *relend; | |
2938 | ||
2939 | rel = relocs; | |
2940 | relend = rel + input_section->reloc_count; | |
2941 | for (; rel < relend; rel++) | |
2942 | { | |
2943 | long symndx; | |
2944 | struct coff_link_hash_entry *h; | |
2945 | struct internal_syment *sym; | |
2946 | bfd_vma addend; | |
2947 | bfd_vma val; | |
3a062fa1 | 2948 | asection *sec; |
252b5132 RH |
2949 | reloc_howto_type *howto; |
2950 | bfd_reloc_status_type rstat; | |
2951 | ||
2952 | symndx = rel->r_symndx; | |
2953 | ||
2954 | if (symndx == -1) | |
2955 | { | |
2956 | h = NULL; | |
2957 | sym = NULL; | |
2958 | } | |
75987f83 ILT |
2959 | else if (symndx < 0 |
2960 | || (unsigned long) symndx >= obj_raw_syment_count (input_bfd)) | |
2961 | { | |
4eca0228 | 2962 | _bfd_error_handler |
695344c0 NC |
2963 | /* xgettext: c-format */ |
2964 | (_("%B: illegal symbol index %ld in relocs"), input_bfd, symndx); | |
b34976b6 | 2965 | return FALSE; |
75987f83 | 2966 | } |
252b5132 | 2967 | else |
244148ad | 2968 | { |
252b5132 RH |
2969 | h = obj_coff_sym_hashes (input_bfd)[symndx]; |
2970 | sym = syms + symndx; | |
2971 | } | |
2972 | ||
2973 | /* COFF treats common symbols in one of two ways. Either the | |
2974 | size of the symbol is included in the section contents, or it | |
2975 | is not. We assume that the size is not included, and force | |
2976 | the rtype_to_howto function to adjust the addend as needed. */ | |
252b5132 RH |
2977 | if (sym != NULL && sym->n_scnum != 0) |
2978 | addend = - sym->n_value; | |
2979 | else | |
2980 | addend = 0; | |
2981 | ||
252b5132 RH |
2982 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, |
2983 | sym, &addend); | |
2984 | if (howto == NULL) | |
b34976b6 | 2985 | return FALSE; |
252b5132 | 2986 | |
1049f94e | 2987 | /* If we are doing a relocatable link, then we can just ignore |
252b5132 | 2988 | a PC relative reloc that is pcrel_offset. It will already |
1049f94e | 2989 | have the correct value. If this is not a relocatable link, |
252b5132 RH |
2990 | then we should ignore the symbol value. */ |
2991 | if (howto->pc_relative && howto->pcrel_offset) | |
2992 | { | |
0e1862bb | 2993 | if (bfd_link_relocatable (info)) |
252b5132 RH |
2994 | continue; |
2995 | if (sym != NULL && sym->n_scnum != 0) | |
2996 | addend += sym->n_value; | |
2997 | } | |
2998 | ||
2999 | val = 0; | |
3a062fa1 | 3000 | sec = NULL; |
252b5132 RH |
3001 | if (h == NULL) |
3002 | { | |
252b5132 RH |
3003 | if (symndx == -1) |
3004 | { | |
3005 | sec = bfd_abs_section_ptr; | |
3006 | val = 0; | |
3007 | } | |
3008 | else | |
3009 | { | |
3010 | sec = sections[symndx]; | |
26c62da0 LW |
3011 | |
3012 | /* PR 19623: Relocations against symbols in | |
3013 | the absolute sections should ignored. */ | |
3014 | if (bfd_is_abs_section (sec)) | |
3015 | continue; | |
3016 | ||
252b5132 RH |
3017 | val = (sec->output_section->vma |
3018 | + sec->output_offset | |
3019 | + sym->n_value); | |
3020 | if (! obj_pe (input_bfd)) | |
3021 | val -= sec->vma; | |
3022 | } | |
3023 | } | |
3024 | else | |
3025 | { | |
3026 | if (h->root.type == bfd_link_hash_defined | |
3027 | || h->root.type == bfd_link_hash_defweak) | |
3028 | { | |
c87db184 | 3029 | /* Defined weak symbols are a GNU extension. */ |
252b5132 RH |
3030 | sec = h->root.u.def.section; |
3031 | val = (h->root.u.def.value | |
3032 | + sec->output_section->vma | |
3033 | + sec->output_offset); | |
c87db184 | 3034 | } |
252b5132 | 3035 | |
bc7a577d | 3036 | else if (h->root.type == bfd_link_hash_undefweak) |
c87db184 | 3037 | { |
96d56e9f | 3038 | if (h->symbol_class == C_NT_WEAK && h->numaux == 1) |
c87db184 CF |
3039 | { |
3040 | /* See _Microsoft Portable Executable and Common Object | |
0c429e07 NC |
3041 | File Format Specification_, section 5.5.3. |
3042 | Note that weak symbols without aux records are a GNU | |
3043 | extension. | |
3044 | FIXME: All weak externals are treated as having | |
27198fa9 DS |
3045 | characteristic IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY (1). |
3046 | These behave as per SVR4 ABI: A library member | |
3047 | will resolve a weak external only if a normal | |
3048 | external causes the library member to be linked. | |
3049 | See also linker.c: generic_link_check_archive_element. */ | |
c87db184 | 3050 | struct coff_link_hash_entry *h2 = |
eb503a00 | 3051 | h->auxbfd->tdata.coff_obj_data->sym_hashes[ |
c87db184 CF |
3052 | h->aux->x_sym.x_tagndx.l]; |
3053 | ||
0c429e07 NC |
3054 | if (!h2 || h2->root.type == bfd_link_hash_undefined) |
3055 | { | |
3056 | sec = bfd_abs_section_ptr; | |
3057 | val = 0; | |
3058 | } | |
3059 | else | |
3060 | { | |
3061 | sec = h2->root.u.def.section; | |
3062 | val = h2->root.u.def.value | |
3063 | + sec->output_section->vma + sec->output_offset; | |
3064 | } | |
c87db184 CF |
3065 | } |
3066 | else | |
0c429e07 | 3067 | /* This is a GNU extension. */ |
c87db184 CF |
3068 | val = 0; |
3069 | } | |
bc7a577d | 3070 | |
0e1862bb | 3071 | else if (! bfd_link_relocatable (info)) |
1a72702b AM |
3072 | (*info->callbacks->undefined_symbol) |
3073 | (info, h->root.root.string, input_bfd, input_section, | |
3074 | rel->r_vaddr - input_section->vma, TRUE); | |
252b5132 RH |
3075 | } |
3076 | ||
3a062fa1 AM |
3077 | /* If the input section defining the symbol has been discarded |
3078 | then zero this reloc field. */ | |
3079 | if (sec != NULL && discarded_section (sec)) | |
3080 | { | |
3081 | _bfd_clear_contents (howto, input_bfd, input_section, | |
3082 | contents + (rel->r_vaddr - input_section->vma)); | |
3083 | continue; | |
3084 | } | |
3085 | ||
252b5132 RH |
3086 | if (info->base_file) |
3087 | { | |
244148ad | 3088 | /* Emit a reloc if the backend thinks it needs it. */ |
252b5132 RH |
3089 | if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto)) |
3090 | { | |
3091 | /* Relocation to a symbol in a section which isn't | |
3092 | absolute. We output the address here to a file. | |
3093 | This file is then read by dlltool when generating the | |
3094 | reloc section. Note that the base file is not | |
d078078d KT |
3095 | portable between systems. We write out a bfd_vma here, |
3096 | and dlltool reads in a bfd_vma. */ | |
3097 | bfd_vma addr = (rel->r_vaddr | |
244148ad KH |
3098 | - input_section->vma |
3099 | + input_section->output_offset | |
252b5132 RH |
3100 | + input_section->output_section->vma); |
3101 | if (coff_data (output_bfd)->pe) | |
3102 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
d078078d KT |
3103 | if (fwrite (&addr, 1, sizeof (bfd_vma), (FILE *) info->base_file) |
3104 | != sizeof (bfd_vma)) | |
252b5132 RH |
3105 | { |
3106 | bfd_set_error (bfd_error_system_call); | |
b34976b6 | 3107 | return FALSE; |
252b5132 RH |
3108 | } |
3109 | } | |
3110 | } | |
244148ad | 3111 | |
252b5132 RH |
3112 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3113 | contents, | |
3114 | rel->r_vaddr - input_section->vma, | |
3115 | val, addend); | |
3116 | ||
3117 | switch (rstat) | |
3118 | { | |
3119 | default: | |
3120 | abort (); | |
3121 | case bfd_reloc_ok: | |
3122 | break; | |
3123 | case bfd_reloc_outofrange: | |
4eca0228 | 3124 | _bfd_error_handler |
695344c0 | 3125 | /* xgettext: c-format */ |
d003868e AM |
3126 | (_("%B: bad reloc address 0x%lx in section `%A'"), |
3127 | input_bfd, input_section, (unsigned long) rel->r_vaddr); | |
b34976b6 | 3128 | return FALSE; |
252b5132 RH |
3129 | case bfd_reloc_overflow: |
3130 | { | |
3131 | const char *name; | |
3132 | char buf[SYMNMLEN + 1]; | |
3133 | ||
3134 | if (symndx == -1) | |
3135 | name = "*ABS*"; | |
3136 | else if (h != NULL) | |
dfeffb9f | 3137 | name = NULL; |
252b5132 RH |
3138 | else |
3139 | { | |
3140 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); | |
3141 | if (name == NULL) | |
b34976b6 | 3142 | return FALSE; |
252b5132 RH |
3143 | } |
3144 | ||
1a72702b AM |
3145 | (*info->callbacks->reloc_overflow) |
3146 | (info, (h ? &h->root : NULL), name, howto->name, | |
3147 | (bfd_vma) 0, input_bfd, input_section, | |
3148 | rel->r_vaddr - input_section->vma); | |
252b5132 RH |
3149 | } |
3150 | } | |
3151 | } | |
b34976b6 | 3152 | return TRUE; |
252b5132 | 3153 | } |