File: | src/gnu/usr.bin/binutils/bfd/cofflink.c |
Warning: | line 1257, column 5 Value stored to 'had_read' is never read |
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1 | /* COFF specific linker code. |
2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 |
3 | Free Software Foundation, Inc. |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | |
6 | This file is part of BFD, the Binary File Descriptor library. |
7 | |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 2 of the License, or |
11 | (at your option) any later version. |
12 | |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
21 | |
22 | /* This file contains the COFF backend linker code. */ |
23 | |
24 | #include "bfd.h" |
25 | #include "sysdep.h" |
26 | #include "bfdlink.h" |
27 | #include "libbfd.h" |
28 | #include "coff/internal.h" |
29 | #include "libcoff.h" |
30 | #include "safe-ctype.h" |
31 | |
32 | static bfd_boolean coff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info); |
33 | static bfd_boolean coff_link_check_archive_element (bfd *abfd, struct bfd_link_info *info, bfd_boolean *pneeded); |
34 | static bfd_boolean coff_link_add_symbols (bfd *abfd, struct bfd_link_info *info); |
35 | |
36 | /* Return TRUE if SYM is a weak, external symbol. */ |
37 | #define IS_WEAK_EXTERNAL(abfd, sym)((sym).n_sclass == 127 || ((((abfd)->tdata.coff_obj_data)-> pe) && (sym).n_sclass == 105)) \ |
38 | ((sym).n_sclass == C_WEAKEXT127 \ |
39 | || (obj_pe (abfd)(((abfd)->tdata.coff_obj_data)->pe) && (sym).n_sclass == C_NT_WEAK105)) |
40 | |
41 | /* Return TRUE if SYM is an external symbol. */ |
42 | #define IS_EXTERNAL(abfd, sym)((sym).n_sclass == 2 || ((sym).n_sclass == 127 || ((((abfd)-> tdata.coff_obj_data)->pe) && (sym).n_sclass == 105 ))) \ |
43 | ((sym).n_sclass == C_EXT2 || IS_WEAK_EXTERNAL (abfd, sym)((sym).n_sclass == 127 || ((((abfd)->tdata.coff_obj_data)-> pe) && (sym).n_sclass == 105))) |
44 | |
45 | /* Define macros so that the ISFCN, et. al., macros work correctly. |
46 | These macros are defined in include/coff/internal.h in terms of |
47 | N_TMASK, etc. These definitions require a user to define local |
48 | variables with the appropriate names, and with values from the |
49 | coff_data (abfd) structure. */ |
50 | |
51 | #define N_TMASKn_tmask n_tmask |
52 | #define N_BTSHFTn_btshft n_btshft |
53 | #define N_BTMASKn_btmask n_btmask |
54 | |
55 | /* Create an entry in a COFF linker hash table. */ |
56 | |
57 | struct bfd_hash_entry * |
58 | _bfd_coff_link_hash_newfunc (struct bfd_hash_entry *entry, |
59 | struct bfd_hash_table *table, |
60 | const char *string) |
61 | { |
62 | struct coff_link_hash_entry *ret = (struct coff_link_hash_entry *) entry; |
63 | |
64 | /* Allocate the structure if it has not already been allocated by a |
65 | subclass. */ |
66 | if (ret == (struct coff_link_hash_entry *) NULL((void*)0)) |
67 | ret = ((struct coff_link_hash_entry *) |
68 | bfd_hash_allocate (table, sizeof (struct coff_link_hash_entry))); |
69 | if (ret == (struct coff_link_hash_entry *) NULL((void*)0)) |
70 | return (struct bfd_hash_entry *) ret; |
71 | |
72 | /* Call the allocation method of the superclass. */ |
73 | ret = ((struct coff_link_hash_entry *) |
74 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
75 | table, string)); |
76 | if (ret != (struct coff_link_hash_entry *) NULL((void*)0)) |
77 | { |
78 | /* Set local fields. */ |
79 | ret->indx = -1; |
80 | ret->type = T_NULL0; |
81 | ret->class = C_NULL0; |
82 | ret->numaux = 0; |
83 | ret->auxbfd = NULL((void*)0); |
84 | ret->aux = NULL((void*)0); |
85 | } |
86 | |
87 | return (struct bfd_hash_entry *) ret; |
88 | } |
89 | |
90 | /* Initialize a COFF linker hash table. */ |
91 | |
92 | bfd_boolean |
93 | _bfd_coff_link_hash_table_init (struct coff_link_hash_table *table, |
94 | bfd *abfd, |
95 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, |
96 | struct bfd_hash_table *, |
97 | const char *)) |
98 | { |
99 | table->stab_info = NULL((void*)0); |
100 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc); |
101 | } |
102 | |
103 | /* Create a COFF linker hash table. */ |
104 | |
105 | struct bfd_link_hash_table * |
106 | _bfd_coff_link_hash_table_create (bfd *abfd) |
107 | { |
108 | struct coff_link_hash_table *ret; |
109 | bfd_size_type amt = sizeof (struct coff_link_hash_table); |
110 | |
111 | ret = bfd_malloc (amt); |
112 | if (ret == NULL((void*)0)) |
113 | return NULL((void*)0); |
114 | |
115 | if (! _bfd_coff_link_hash_table_init (ret, abfd, |
116 | _bfd_coff_link_hash_newfunc)) |
117 | { |
118 | free (ret); |
119 | return (struct bfd_link_hash_table *) NULL((void*)0); |
120 | } |
121 | return &ret->root; |
122 | } |
123 | |
124 | /* Create an entry in a COFF debug merge hash table. */ |
125 | |
126 | struct bfd_hash_entry * |
127 | _bfd_coff_debug_merge_hash_newfunc (struct bfd_hash_entry *entry, |
128 | struct bfd_hash_table *table, |
129 | const char *string) |
130 | { |
131 | struct coff_debug_merge_hash_entry *ret = |
132 | (struct coff_debug_merge_hash_entry *) entry; |
133 | |
134 | /* Allocate the structure if it has not already been allocated by a |
135 | subclass. */ |
136 | if (ret == (struct coff_debug_merge_hash_entry *) NULL((void*)0)) |
137 | ret = ((struct coff_debug_merge_hash_entry *) |
138 | bfd_hash_allocate (table, |
139 | sizeof (struct coff_debug_merge_hash_entry))); |
140 | if (ret == (struct coff_debug_merge_hash_entry *) NULL((void*)0)) |
141 | return (struct bfd_hash_entry *) ret; |
142 | |
143 | /* Call the allocation method of the superclass. */ |
144 | ret = ((struct coff_debug_merge_hash_entry *) |
145 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); |
146 | if (ret != (struct coff_debug_merge_hash_entry *) NULL((void*)0)) |
147 | { |
148 | /* Set local fields. */ |
149 | ret->types = NULL((void*)0); |
150 | } |
151 | |
152 | return (struct bfd_hash_entry *) ret; |
153 | } |
154 | |
155 | /* Given a COFF BFD, add symbols to the global hash table as |
156 | appropriate. */ |
157 | |
158 | bfd_boolean |
159 | _bfd_coff_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
160 | { |
161 | switch (bfd_get_format (abfd)((abfd)->format)) |
162 | { |
163 | case bfd_object: |
164 | return coff_link_add_object_symbols (abfd, info); |
165 | case bfd_archive: |
166 | return _bfd_generic_link_add_archive_symbols |
167 | (abfd, info, coff_link_check_archive_element); |
168 | default: |
169 | bfd_set_error (bfd_error_wrong_format); |
170 | return FALSE0; |
171 | } |
172 | } |
173 | |
174 | /* Add symbols from a COFF object file. */ |
175 | |
176 | static bfd_boolean |
177 | coff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
178 | { |
179 | if (! _bfd_coff_get_external_symbols (abfd)) |
180 | return FALSE0; |
181 | if (! coff_link_add_symbols (abfd, info)) |
182 | return FALSE0; |
183 | |
184 | if (! info->keep_memory |
185 | && ! _bfd_coff_free_symbols (abfd)) |
186 | return FALSE0; |
187 | |
188 | return TRUE1; |
189 | } |
190 | |
191 | /* Look through the symbols to see if this object file should be |
192 | included in the link. */ |
193 | |
194 | static bfd_boolean |
195 | coff_link_check_ar_symbols (bfd *abfd, |
196 | struct bfd_link_info *info, |
197 | bfd_boolean *pneeded) |
198 | { |
199 | bfd_size_type symesz; |
200 | bfd_byte *esym; |
201 | bfd_byte *esym_end; |
202 | |
203 | *pneeded = FALSE0; |
204 | |
205 | symesz = bfd_coff_symesz (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_symesz); |
206 | esym = (bfd_byte *) obj_coff_external_syms (abfd)(((abfd)->tdata.coff_obj_data)->external_syms); |
207 | esym_end = esym + obj_raw_syment_count (abfd)(((abfd)->tdata.coff_obj_data)->raw_syment_count) * symesz; |
208 | while (esym < esym_end) |
209 | { |
210 | struct internal_syment sym; |
211 | enum coff_symbol_classification classification; |
212 | |
213 | bfd_coff_swap_sym_in (abfd, esym, &sym)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (abfd,esym,&sym)); |
214 | |
215 | classification = bfd_coff_classify_symbol (abfd, &sym)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_classify_symbol) (abfd, &sym)); |
216 | if (classification == COFF_SYMBOL_GLOBAL |
217 | || classification == COFF_SYMBOL_COMMON) |
218 | { |
219 | const char *name; |
220 | char buf[SYMNMLEN8 + 1]; |
221 | struct bfd_link_hash_entry *h; |
222 | |
223 | /* This symbol is externally visible, and is defined by this |
224 | object file. */ |
225 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); |
226 | if (name == NULL((void*)0)) |
227 | return FALSE0; |
228 | h = bfd_link_hash_lookup (info->hash, name, FALSE0, FALSE0, TRUE1); |
229 | |
230 | /* Auto import. */ |
231 | if (!h |
232 | && info->pei386_auto_import |
233 | && !strncmp (name,"__imp_", 6)) |
234 | h = bfd_link_hash_lookup (info->hash, name + 6, FALSE0, FALSE0, TRUE1); |
235 | |
236 | /* We are only interested in symbols that are currently |
237 | undefined. If a symbol is currently known to be common, |
238 | COFF linkers do not bring in an object file which defines |
239 | it. */ |
240 | if (h != (struct bfd_link_hash_entry *) NULL((void*)0) |
241 | && h->type == bfd_link_hash_undefined) |
242 | { |
243 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) |
244 | return FALSE0; |
245 | *pneeded = TRUE1; |
246 | return TRUE1; |
247 | } |
248 | } |
249 | |
250 | esym += (sym.n_numaux + 1) * symesz; |
251 | } |
252 | |
253 | /* We do not need this object file. */ |
254 | return TRUE1; |
255 | } |
256 | |
257 | /* Check a single archive element to see if we need to include it in |
258 | the link. *PNEEDED is set according to whether this element is |
259 | needed in the link or not. This is called via |
260 | _bfd_generic_link_add_archive_symbols. */ |
261 | |
262 | static bfd_boolean |
263 | coff_link_check_archive_element (bfd *abfd, |
264 | struct bfd_link_info *info, |
265 | bfd_boolean *pneeded) |
266 | { |
267 | if (! _bfd_coff_get_external_symbols (abfd)) |
268 | return FALSE0; |
269 | |
270 | if (! coff_link_check_ar_symbols (abfd, info, pneeded)) |
271 | return FALSE0; |
272 | |
273 | if (*pneeded |
274 | && ! coff_link_add_symbols (abfd, info)) |
275 | return FALSE0; |
276 | |
277 | if ((! info->keep_memory || ! *pneeded) |
278 | && ! _bfd_coff_free_symbols (abfd)) |
279 | return FALSE0; |
280 | |
281 | return TRUE1; |
282 | } |
283 | |
284 | /* Add all the symbols from an object file to the hash table. */ |
285 | |
286 | static bfd_boolean |
287 | coff_link_add_symbols (bfd *abfd, |
288 | struct bfd_link_info *info) |
289 | { |
290 | unsigned int n_tmask = coff_data (abfd)((abfd)->tdata.coff_obj_data)->local_n_tmask; |
291 | unsigned int n_btshft = coff_data (abfd)((abfd)->tdata.coff_obj_data)->local_n_btshft; |
292 | unsigned int n_btmask = coff_data (abfd)((abfd)->tdata.coff_obj_data)->local_n_btmask; |
293 | bfd_boolean keep_syms; |
294 | bfd_boolean default_copy; |
295 | bfd_size_type symcount; |
296 | struct coff_link_hash_entry **sym_hash; |
297 | bfd_size_type symesz; |
298 | bfd_byte *esym; |
299 | bfd_byte *esym_end; |
300 | bfd_size_type amt; |
301 | |
302 | /* Keep the symbols during this function, in case the linker needs |
303 | to read the generic symbols in order to report an error message. */ |
304 | keep_syms = obj_coff_keep_syms (abfd)(((abfd)->tdata.coff_obj_data)->keep_syms); |
305 | obj_coff_keep_syms (abfd)(((abfd)->tdata.coff_obj_data)->keep_syms) = TRUE1; |
306 | |
307 | if (info->keep_memory) |
308 | default_copy = FALSE0; |
309 | else |
310 | default_copy = TRUE1; |
311 | |
312 | symcount = obj_raw_syment_count (abfd)(((abfd)->tdata.coff_obj_data)->raw_syment_count); |
313 | |
314 | /* We keep a list of the linker hash table entries that correspond |
315 | to particular symbols. */ |
316 | amt = symcount * sizeof (struct coff_link_hash_entry *); |
317 | sym_hash = bfd_zalloc (abfd, amt); |
318 | if (sym_hash == NULL((void*)0) && symcount != 0) |
319 | goto error_return; |
320 | obj_coff_sym_hashes (abfd)(((abfd)->tdata.coff_obj_data)->sym_hashes) = sym_hash; |
321 | |
322 | symesz = bfd_coff_symesz (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_symesz); |
323 | BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)){ if (!(symesz == (((bfd_coff_backend_data *) (abfd)->xvec ->backend_data)->_bfd_auxesz))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,323); }; |
324 | esym = (bfd_byte *) obj_coff_external_syms (abfd)(((abfd)->tdata.coff_obj_data)->external_syms); |
325 | esym_end = esym + symcount * symesz; |
326 | while (esym < esym_end) |
327 | { |
328 | struct internal_syment sym; |
329 | enum coff_symbol_classification classification; |
330 | bfd_boolean copy; |
331 | |
332 | bfd_coff_swap_sym_in (abfd, esym, &sym)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (abfd,esym,&sym)); |
333 | |
334 | classification = bfd_coff_classify_symbol (abfd, &sym)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_classify_symbol) (abfd, &sym)); |
335 | if (classification != COFF_SYMBOL_LOCAL) |
336 | { |
337 | const char *name; |
338 | char buf[SYMNMLEN8 + 1]; |
339 | flagword flags; |
340 | asection *section; |
341 | bfd_vma value; |
342 | bfd_boolean addit; |
343 | |
344 | /* This symbol is externally visible. */ |
345 | |
346 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); |
347 | if (name == NULL((void*)0)) |
348 | goto error_return; |
349 | |
350 | /* We must copy the name into memory if we got it from the |
351 | syment itself, rather than the string table. */ |
352 | copy = default_copy; |
353 | if (sym._n._n_n._n_zeroes != 0 |
354 | || sym._n._n_n._n_offset == 0) |
355 | copy = TRUE1; |
356 | |
357 | value = sym.n_value; |
358 | |
359 | switch (classification) |
360 | { |
361 | default: |
362 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c", 362 , __PRETTY_FUNCTION__); |
363 | |
364 | case COFF_SYMBOL_GLOBAL: |
365 | flags = BSF_EXPORT0x02 | BSF_GLOBAL0x02; |
366 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); |
367 | if (! obj_pe (abfd)(((abfd)->tdata.coff_obj_data)->pe)) |
368 | value -= section->vma; |
369 | break; |
370 | |
371 | case COFF_SYMBOL_UNDEFINED: |
372 | flags = 0; |
373 | section = bfd_und_section_ptr((asection *) &bfd_und_section); |
374 | break; |
375 | |
376 | case COFF_SYMBOL_COMMON: |
377 | flags = BSF_GLOBAL0x02; |
378 | section = bfd_com_section_ptr((asection *) &bfd_com_section); |
379 | break; |
380 | |
381 | case COFF_SYMBOL_PE_SECTION: |
382 | flags = BSF_SECTION_SYM0x100 | BSF_GLOBAL0x02; |
383 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); |
384 | break; |
385 | } |
386 | |
387 | if (IS_WEAK_EXTERNAL (abfd, sym)((sym).n_sclass == 127 || ((((abfd)->tdata.coff_obj_data)-> pe) && (sym).n_sclass == 105))) |
388 | flags = BSF_WEAK0x80; |
389 | |
390 | addit = TRUE1; |
391 | |
392 | /* In the PE format, section symbols actually refer to the |
393 | start of the output section. We handle them specially |
394 | here. */ |
395 | if (obj_pe (abfd)(((abfd)->tdata.coff_obj_data)->pe) && (flags & BSF_SECTION_SYM0x100) != 0) |
396 | { |
397 | *sym_hash = coff_link_hash_lookup (coff_hash_table (info),((struct coff_link_hash_entry *) bfd_link_hash_lookup (&( ((struct coff_link_hash_table *) ((info)->hash)))->root , (name), (0), (copy), (0))) |
398 | name, FALSE, copy, FALSE)((struct coff_link_hash_entry *) bfd_link_hash_lookup (&( ((struct coff_link_hash_table *) ((info)->hash)))->root , (name), (0), (copy), (0))); |
399 | if (*sym_hash != NULL((void*)0)) |
400 | { |
401 | if (((*sym_hash)->coff_link_hash_flags |
402 | & COFF_LINK_HASH_PE_SECTION_SYMBOL(01)) == 0 |
403 | && (*sym_hash)->root.type != bfd_link_hash_undefined |
404 | && (*sym_hash)->root.type != bfd_link_hash_undefweak) |
405 | (*_bfd_error_handler) |
406 | ("Warning: symbol `%s' is both section and non-section", |
407 | name); |
408 | |
409 | addit = FALSE0; |
410 | } |
411 | } |
412 | |
413 | /* The Microsoft Visual C compiler does string pooling by |
414 | hashing the constants to an internal symbol name, and |
415 | relying on the linker comdat support to discard |
416 | duplicate names. However, if one string is a literal and |
417 | one is a data initializer, one will end up in the .data |
418 | section and one will end up in the .rdata section. The |
419 | Microsoft linker will combine them into the .data |
420 | section, which seems to be wrong since it might cause the |
421 | literal to change. |
422 | |
423 | As long as there are no external references to the |
424 | symbols, which there shouldn't be, we can treat the .data |
425 | and .rdata instances as separate symbols. The comdat |
426 | code in the linker will do the appropriate merging. Here |
427 | we avoid getting a multiple definition error for one of |
428 | these special symbols. |
429 | |
430 | FIXME: I don't think this will work in the case where |
431 | there are two object files which use the constants as a |
432 | literal and two object files which use it as a data |
433 | initializer. One or the other of the second object files |
434 | is going to wind up with an inappropriate reference. */ |
435 | if (obj_pe (abfd)(((abfd)->tdata.coff_obj_data)->pe) |
436 | && (classification == COFF_SYMBOL_GLOBAL |
437 | || classification == COFF_SYMBOL_PE_SECTION) |
438 | && section->comdat != NULL((void*)0) |
439 | && strncmp (name, "??_", 3) == 0 |
440 | && strcmp (name, section->comdat->name) == 0) |
441 | { |
442 | if (*sym_hash == NULL((void*)0)) |
443 | *sym_hash = coff_link_hash_lookup (coff_hash_table (info),((struct coff_link_hash_entry *) bfd_link_hash_lookup (&( ((struct coff_link_hash_table *) ((info)->hash)))->root , (name), (0), (copy), (0))) |
444 | name, FALSE, copy, FALSE)((struct coff_link_hash_entry *) bfd_link_hash_lookup (&( ((struct coff_link_hash_table *) ((info)->hash)))->root , (name), (0), (copy), (0))); |
445 | if (*sym_hash != NULL((void*)0) |
446 | && (*sym_hash)->root.type == bfd_link_hash_defined |
447 | && (*sym_hash)->root.u.def.section->comdat != NULL((void*)0) |
448 | && strcmp ((*sym_hash)->root.u.def.section->comdat->name, |
449 | section->comdat->name) == 0) |
450 | addit = FALSE0; |
451 | } |
452 | |
453 | if (addit) |
454 | { |
455 | if (! (bfd_coff_link_add_one_symbol((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_link_add_one_symbol) (info, abfd, name, flags , section, value, (const char *) ((void*)0), copy, 0, (struct bfd_link_hash_entry **) sym_hash)) |
456 | (info, abfd, name, flags, section, value,((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_link_add_one_symbol) (info, abfd, name, flags , section, value, (const char *) ((void*)0), copy, 0, (struct bfd_link_hash_entry **) sym_hash)) |
457 | (const char *) NULL, copy, FALSE,((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_link_add_one_symbol) (info, abfd, name, flags , section, value, (const char *) ((void*)0), copy, 0, (struct bfd_link_hash_entry **) sym_hash)) |
458 | (struct bfd_link_hash_entry **) sym_hash)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_link_add_one_symbol) (info, abfd, name, flags , section, value, (const char *) ((void*)0), copy, 0, (struct bfd_link_hash_entry **) sym_hash)))) |
459 | goto error_return; |
460 | } |
461 | |
462 | if (obj_pe (abfd)(((abfd)->tdata.coff_obj_data)->pe) && (flags & BSF_SECTION_SYM0x100) != 0) |
463 | (*sym_hash)->coff_link_hash_flags |= |
464 | COFF_LINK_HASH_PE_SECTION_SYMBOL(01); |
465 | |
466 | /* Limit the alignment of a common symbol to the possible |
467 | alignment of a section. There is no point to permitting |
468 | a higher alignment for a common symbol: we can not |
469 | guarantee it, and it may cause us to allocate extra space |
470 | in the common section. */ |
471 | if (section == bfd_com_section_ptr((asection *) &bfd_com_section) |
472 | && (*sym_hash)->root.type == bfd_link_hash_common |
473 | && ((*sym_hash)->root.u.c.p->alignment_power |
474 | > bfd_coff_default_section_alignment_power (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_coff_default_section_alignment_power))) |
475 | (*sym_hash)->root.u.c.p->alignment_power |
476 | = bfd_coff_default_section_alignment_power (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_coff_default_section_alignment_power); |
477 | |
478 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)((abfd)->xvec->flavour)) |
479 | { |
480 | /* If we don't have any symbol information currently in |
481 | the hash table, or if we are looking at a symbol |
482 | definition, then update the symbol class and type in |
483 | the hash table. */ |
484 | if (((*sym_hash)->class == C_NULL0 |
485 | && (*sym_hash)->type == T_NULL0) |
486 | || sym.n_scnum != 0 |
487 | || (sym.n_value != 0 |
488 | && (*sym_hash)->root.type != bfd_link_hash_defined |
489 | && (*sym_hash)->root.type != bfd_link_hash_defweak)) |
490 | { |
491 | (*sym_hash)->class = sym.n_sclass; |
492 | if (sym.n_type != T_NULL0) |
493 | { |
494 | /* We want to warn if the type changed, but not |
495 | if it changed from an unspecified type. |
496 | Testing the whole type byte may work, but the |
497 | change from (e.g.) a function of unspecified |
498 | type to function of known type also wants to |
499 | skip the warning. */ |
500 | if ((*sym_hash)->type != T_NULL0 |
501 | && (*sym_hash)->type != sym.n_type |
502 | && !(DTYPE ((*sym_hash)->type)((((*sym_hash)->type) & n_tmask) >> n_btshft) == DTYPE (sym.n_type)(((sym.n_type) & n_tmask) >> n_btshft) |
503 | && (BTYPE ((*sym_hash)->type)(((*sym_hash)->type) & n_btmask) == T_NULL0 |
504 | || BTYPE (sym.n_type)((sym.n_type) & n_btmask) == T_NULL0))) |
505 | (*_bfd_error_handler) |
506 | (_("Warning: type of symbol `%s' changed from %d to %d in %s")("Warning: type of symbol `%s' changed from %d to %d in %s"), |
507 | name, (*sym_hash)->type, sym.n_type, |
508 | bfd_archive_filename (abfd)); |
509 | |
510 | /* We don't want to change from a meaningful |
511 | base type to a null one, but if we know |
512 | nothing, take what little we might now know. */ |
513 | if (BTYPE (sym.n_type)((sym.n_type) & n_btmask) != T_NULL0 |
514 | || (*sym_hash)->type == T_NULL0) |
515 | (*sym_hash)->type = sym.n_type; |
516 | } |
517 | (*sym_hash)->auxbfd = abfd; |
518 | if (sym.n_numaux != 0) |
519 | { |
520 | union internal_auxent *alloc; |
521 | unsigned int i; |
522 | bfd_byte *eaux; |
523 | union internal_auxent *iaux; |
524 | |
525 | (*sym_hash)->numaux = sym.n_numaux; |
526 | alloc = ((union internal_auxent *) |
527 | bfd_hash_allocate (&info->hash->table, |
528 | (sym.n_numaux |
529 | * sizeof (*alloc)))); |
530 | if (alloc == NULL((void*)0)) |
531 | goto error_return; |
532 | for (i = 0, eaux = esym + symesz, iaux = alloc; |
533 | i < sym.n_numaux; |
534 | i++, eaux += symesz, iaux++) |
535 | bfd_coff_swap_aux_in (abfd, eaux, sym.n_type,((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (abfd,eaux,sym.n_type,sym.n_sclass ,(int) i,sym.n_numaux,iaux)) |
536 | sym.n_sclass, (int) i,((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (abfd,eaux,sym.n_type,sym.n_sclass ,(int) i,sym.n_numaux,iaux)) |
537 | sym.n_numaux, iaux)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (abfd,eaux,sym.n_type,sym.n_sclass ,(int) i,sym.n_numaux,iaux)); |
538 | (*sym_hash)->aux = alloc; |
539 | } |
540 | } |
541 | } |
542 | |
543 | if (classification == COFF_SYMBOL_PE_SECTION |
544 | && (*sym_hash)->numaux != 0) |
545 | { |
546 | /* Some PE sections (such as .bss) have a zero size in |
547 | the section header, but a non-zero size in the AUX |
548 | record. Correct that here. |
549 | |
550 | FIXME: This is not at all the right place to do this. |
551 | For example, it won't help objdump. This needs to be |
552 | done when we swap in the section header. */ |
553 | BFD_ASSERT ((*sym_hash)->numaux == 1){ if (!((*sym_hash)->numaux == 1)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,553); }; |
554 | if (section->_raw_size == 0) |
555 | section->_raw_size = (*sym_hash)->aux[0].x_scn.x_scnlen; |
556 | |
557 | /* FIXME: We could test whether the section sizes |
558 | matches the size in the aux entry, but apparently |
559 | that sometimes fails unexpectedly. */ |
560 | } |
561 | } |
562 | |
563 | esym += (sym.n_numaux + 1) * symesz; |
564 | sym_hash += sym.n_numaux + 1; |
565 | } |
566 | |
567 | /* If this is a non-traditional, non-relocatable link, try to |
568 | optimize the handling of any .stab/.stabstr sections. */ |
569 | if (! info->relocatable |
570 | && ! info->traditional_format |
571 | && info->hash->creator->flavour == bfd_get_flavour (abfd)((abfd)->xvec->flavour) |
572 | && (info->strip != strip_all && info->strip != strip_debugger)) |
573 | { |
574 | asection *stabstr; |
575 | |
576 | stabstr = bfd_get_section_by_name (abfd, ".stabstr"); |
577 | |
578 | if (stabstr != NULL((void*)0)) |
579 | { |
580 | bfd_size_type string_offset = 0; |
581 | asection *stab; |
582 | |
583 | for (stab = abfd->sections; stab; stab = stab->next) |
584 | if (strncmp (".stab", stab->name, 5) == 0 |
585 | && (!stab->name[5] |
586 | || (stab->name[5] == '.' && ISDIGIT (stab->name[6])(_sch_istable[(stab->name[6]) & 0xff] & (unsigned short )(_sch_isdigit))))) |
587 | { |
588 | struct coff_link_hash_table *table; |
589 | struct coff_section_tdata *secdata |
590 | = coff_section_data (abfd, stab)((struct coff_section_tdata *) (stab)->used_by_bfd); |
591 | |
592 | if (secdata == NULL((void*)0)) |
593 | { |
594 | amt = sizeof (struct coff_section_tdata); |
595 | stab->used_by_bfd = bfd_zalloc (abfd, amt); |
596 | if (stab->used_by_bfd == NULL((void*)0)) |
597 | goto error_return; |
598 | secdata = coff_section_data (abfd, stab)((struct coff_section_tdata *) (stab)->used_by_bfd); |
599 | } |
600 | |
601 | table = coff_hash_table (info)((struct coff_link_hash_table *) ((info)->hash)); |
602 | |
603 | if (! _bfd_link_section_stabs (abfd, &table->stab_info, |
604 | stab, stabstr, |
605 | &secdata->stab_info, |
606 | &string_offset)) |
607 | goto error_return; |
608 | } |
609 | } |
610 | } |
611 | |
612 | obj_coff_keep_syms (abfd)(((abfd)->tdata.coff_obj_data)->keep_syms) = keep_syms; |
613 | |
614 | return TRUE1; |
615 | |
616 | error_return: |
617 | obj_coff_keep_syms (abfd)(((abfd)->tdata.coff_obj_data)->keep_syms) = keep_syms; |
618 | return FALSE0; |
619 | } |
620 | |
621 | /* Do the final link step. */ |
622 | |
623 | bfd_boolean |
624 | _bfd_coff_final_link (bfd *abfd, |
625 | struct bfd_link_info *info) |
626 | { |
627 | bfd_size_type symesz; |
628 | struct coff_final_link_info finfo; |
629 | bfd_boolean debug_merge_allocated; |
630 | bfd_boolean long_section_names; |
631 | asection *o; |
632 | struct bfd_link_order *p; |
633 | bfd_size_type max_sym_count; |
634 | bfd_size_type max_lineno_count; |
635 | bfd_size_type max_reloc_count; |
636 | bfd_size_type max_output_reloc_count; |
637 | bfd_size_type max_contents_size; |
638 | file_ptr rel_filepos; |
639 | unsigned int relsz; |
640 | file_ptr line_filepos; |
641 | unsigned int linesz; |
642 | bfd *sub; |
643 | bfd_byte *external_relocs = NULL((void*)0); |
644 | char strbuf[STRING_SIZE_SIZE(4)]; |
645 | bfd_size_type amt; |
646 | |
647 | symesz = bfd_coff_symesz (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_symesz); |
648 | |
649 | finfo.info = info; |
650 | finfo.output_bfd = abfd; |
651 | finfo.strtab = NULL((void*)0); |
652 | finfo.section_info = NULL((void*)0); |
653 | finfo.last_file_index = -1; |
654 | finfo.last_bf_index = -1; |
655 | finfo.internal_syms = NULL((void*)0); |
656 | finfo.sec_ptrs = NULL((void*)0); |
657 | finfo.sym_indices = NULL((void*)0); |
658 | finfo.outsyms = NULL((void*)0); |
659 | finfo.linenos = NULL((void*)0); |
660 | finfo.contents = NULL((void*)0); |
661 | finfo.external_relocs = NULL((void*)0); |
662 | finfo.internal_relocs = NULL((void*)0); |
663 | finfo.global_to_static = FALSE0; |
664 | debug_merge_allocated = FALSE0; |
665 | |
666 | coff_data (abfd)((abfd)->tdata.coff_obj_data)->link_info = info; |
667 | |
668 | finfo.strtab = _bfd_stringtab_init (); |
669 | if (finfo.strtab == NULL((void*)0)) |
670 | goto error_return; |
671 | |
672 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)(bfd_hash_table_init (&(&finfo.debug_merge)->root, _bfd_coff_debug_merge_hash_newfunc))) |
673 | goto error_return; |
674 | debug_merge_allocated = TRUE1; |
675 | |
676 | /* Compute the file positions for all the sections. */ |
677 | if (! abfd->output_has_begun) |
678 | { |
679 | if (! bfd_coff_compute_section_file_positions (abfd)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_compute_section_file_positions) (abfd))) |
680 | goto error_return; |
681 | } |
682 | |
683 | /* Count the line numbers and relocation entries required for the |
684 | output file. Set the file positions for the relocs. */ |
685 | rel_filepos = obj_relocbase (abfd)(((abfd)->tdata.coff_obj_data)->relocbase); |
686 | relsz = bfd_coff_relsz (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_relsz); |
687 | max_contents_size = 0; |
688 | max_lineno_count = 0; |
689 | max_reloc_count = 0; |
690 | |
691 | long_section_names = FALSE0; |
692 | for (o = abfd->sections; o != NULL((void*)0); o = o->next) |
693 | { |
694 | o->reloc_count = 0; |
695 | o->lineno_count = 0; |
696 | for (p = o->link_order_head; p != NULL((void*)0); p = p->next) |
697 | { |
698 | if (p->type == bfd_indirect_link_order) |
699 | { |
700 | asection *sec; |
701 | |
702 | sec = p->u.indirect.section; |
703 | |
704 | /* Mark all sections which are to be included in the |
705 | link. This will normally be every section. We need |
706 | to do this so that we can identify any sections which |
707 | the linker has decided to not include. */ |
708 | sec->linker_mark = TRUE1; |
709 | |
710 | if (info->strip == strip_none |
711 | || info->strip == strip_some) |
712 | o->lineno_count += sec->lineno_count; |
713 | |
714 | if (info->relocatable) |
715 | o->reloc_count += sec->reloc_count; |
716 | |
717 | if (sec->_raw_size > max_contents_size) |
718 | max_contents_size = sec->_raw_size; |
719 | if (sec->lineno_count > max_lineno_count) |
720 | max_lineno_count = sec->lineno_count; |
721 | if (sec->reloc_count > max_reloc_count) |
722 | max_reloc_count = sec->reloc_count; |
723 | } |
724 | else if (info->relocatable |
725 | && (p->type == bfd_section_reloc_link_order |
726 | || p->type == bfd_symbol_reloc_link_order)) |
727 | ++o->reloc_count; |
728 | } |
729 | if (o->reloc_count == 0) |
730 | o->rel_filepos = 0; |
731 | else |
732 | { |
733 | o->flags |= SEC_RELOC0x004; |
734 | o->rel_filepos = rel_filepos; |
735 | rel_filepos += o->reloc_count * relsz; |
736 | /* In PE COFF, if there are at least 0xffff relocations an |
737 | extra relocation will be written out to encode the count. */ |
738 | if (obj_pe (abfd)(((abfd)->tdata.coff_obj_data)->pe) && o->reloc_count >= 0xffff) |
739 | rel_filepos += relsz; |
740 | } |
741 | |
742 | if (bfd_coff_long_section_names (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_coff_long_section_names) |
743 | && strlen (o->name) > SCNNMLEN(8)) |
744 | { |
745 | /* This section has a long name which must go in the string |
746 | table. This must correspond to the code in |
747 | coff_write_object_contents which puts the string index |
748 | into the s_name field of the section header. That is why |
749 | we pass hash as FALSE. */ |
750 | if (_bfd_stringtab_add (finfo.strtab, o->name, FALSE0, FALSE0) |
751 | == (bfd_size_type) -1) |
752 | goto error_return; |
753 | long_section_names = TRUE1; |
754 | } |
755 | } |
756 | |
757 | /* If doing a relocatable link, allocate space for the pointers we |
758 | need to keep. */ |
759 | if (info->relocatable) |
760 | { |
761 | unsigned int i; |
762 | |
763 | /* We use section_count + 1, rather than section_count, because |
764 | the target_index fields are 1 based. */ |
765 | amt = abfd->section_count + 1; |
766 | amt *= sizeof (struct coff_link_section_info); |
767 | finfo.section_info = bfd_malloc (amt); |
768 | if (finfo.section_info == NULL((void*)0)) |
769 | goto error_return; |
770 | for (i = 0; i <= abfd->section_count; i++) |
771 | { |
772 | finfo.section_info[i].relocs = NULL((void*)0); |
773 | finfo.section_info[i].rel_hashes = NULL((void*)0); |
774 | } |
775 | } |
776 | |
777 | /* We now know the size of the relocs, so we can determine the file |
778 | positions of the line numbers. */ |
779 | line_filepos = rel_filepos; |
780 | linesz = bfd_coff_linesz (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_linesz); |
781 | max_output_reloc_count = 0; |
782 | for (o = abfd->sections; o != NULL((void*)0); o = o->next) |
783 | { |
784 | if (o->lineno_count == 0) |
785 | o->line_filepos = 0; |
786 | else |
787 | { |
788 | o->line_filepos = line_filepos; |
789 | line_filepos += o->lineno_count * linesz; |
790 | } |
791 | |
792 | if (o->reloc_count != 0) |
793 | { |
794 | /* We don't know the indices of global symbols until we have |
795 | written out all the local symbols. For each section in |
796 | the output file, we keep an array of pointers to hash |
797 | table entries. Each entry in the array corresponds to a |
798 | reloc. When we find a reloc against a global symbol, we |
799 | set the corresponding entry in this array so that we can |
800 | fix up the symbol index after we have written out all the |
801 | local symbols. |
802 | |
803 | Because of this problem, we also keep the relocs in |
804 | memory until the end of the link. This wastes memory, |
805 | but only when doing a relocatable link, which is not the |
806 | common case. */ |
807 | BFD_ASSERT (info->relocatable){ if (!(info->relocatable)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,807); }; |
808 | amt = o->reloc_count; |
809 | amt *= sizeof (struct internal_reloc); |
810 | finfo.section_info[o->target_index].relocs = bfd_malloc (amt); |
811 | amt = o->reloc_count; |
812 | amt *= sizeof (struct coff_link_hash_entry *); |
813 | finfo.section_info[o->target_index].rel_hashes = bfd_malloc (amt); |
814 | if (finfo.section_info[o->target_index].relocs == NULL((void*)0) |
815 | || finfo.section_info[o->target_index].rel_hashes == NULL((void*)0)) |
816 | goto error_return; |
817 | |
818 | if (o->reloc_count > max_output_reloc_count) |
819 | max_output_reloc_count = o->reloc_count; |
820 | } |
821 | |
822 | /* Reset the reloc and lineno counts, so that we can use them to |
823 | count the number of entries we have output so far. */ |
824 | o->reloc_count = 0; |
825 | o->lineno_count = 0; |
826 | } |
827 | |
828 | obj_sym_filepos (abfd)(((abfd)->tdata.coff_obj_data)->sym_filepos) = line_filepos; |
829 | |
830 | /* Figure out the largest number of symbols in an input BFD. Take |
831 | the opportunity to clear the output_has_begun fields of all the |
832 | input BFD's. */ |
833 | max_sym_count = 0; |
834 | for (sub = info->input_bfds; sub != NULL((void*)0); sub = sub->link_next) |
835 | { |
836 | size_t sz; |
837 | |
838 | sub->output_has_begun = FALSE0; |
839 | sz = obj_raw_syment_count (sub)(((sub)->tdata.coff_obj_data)->raw_syment_count); |
840 | if (sz > max_sym_count) |
841 | max_sym_count = sz; |
842 | } |
843 | |
844 | /* Allocate some buffers used while linking. */ |
845 | amt = max_sym_count * sizeof (struct internal_syment); |
846 | finfo.internal_syms = bfd_malloc (amt); |
847 | amt = max_sym_count * sizeof (asection *); |
848 | finfo.sec_ptrs = bfd_malloc (amt); |
849 | amt = max_sym_count * sizeof (long); |
850 | finfo.sym_indices = bfd_malloc (amt); |
851 | finfo.outsyms = bfd_malloc ((max_sym_count + 1) * symesz); |
852 | amt = max_lineno_count * bfd_coff_linesz (abfd)(((bfd_coff_backend_data *) (abfd)->xvec->backend_data) ->_bfd_linesz); |
853 | finfo.linenos = bfd_malloc (amt); |
854 | finfo.contents = bfd_malloc (max_contents_size); |
855 | amt = max_reloc_count * relsz; |
856 | finfo.external_relocs = bfd_malloc (amt); |
857 | if (! info->relocatable) |
858 | { |
859 | amt = max_reloc_count * sizeof (struct internal_reloc); |
860 | finfo.internal_relocs = bfd_malloc (amt); |
861 | } |
862 | if ((finfo.internal_syms == NULL((void*)0) && max_sym_count > 0) |
863 | || (finfo.sec_ptrs == NULL((void*)0) && max_sym_count > 0) |
864 | || (finfo.sym_indices == NULL((void*)0) && max_sym_count > 0) |
865 | || finfo.outsyms == NULL((void*)0) |
866 | || (finfo.linenos == NULL((void*)0) && max_lineno_count > 0) |
867 | || (finfo.contents == NULL((void*)0) && max_contents_size > 0) |
868 | || (finfo.external_relocs == NULL((void*)0) && max_reloc_count > 0) |
869 | || (! info->relocatable |
870 | && finfo.internal_relocs == NULL((void*)0) |
871 | && max_reloc_count > 0)) |
872 | goto error_return; |
873 | |
874 | /* We now know the position of everything in the file, except that |
875 | we don't know the size of the symbol table and therefore we don't |
876 | know where the string table starts. We just build the string |
877 | table in memory as we go along. We process all the relocations |
878 | for a single input file at once. */ |
879 | obj_raw_syment_count (abfd)(((abfd)->tdata.coff_obj_data)->raw_syment_count) = 0; |
880 | |
881 | if (coff_backend_info (abfd)((bfd_coff_backend_data *) (abfd)->xvec->backend_data)->_bfd_coff_start_final_link) |
882 | { |
883 | if (! bfd_coff_start_final_link (abfd, info)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_start_final_link) (abfd, info))) |
884 | goto error_return; |
885 | } |
886 | |
887 | for (o = abfd->sections; o != NULL((void*)0); o = o->next) |
888 | { |
889 | for (p = o->link_order_head; p != NULL((void*)0); p = p->next) |
890 | { |
891 | if (p->type == bfd_indirect_link_order |
892 | && bfd_family_coff (p->u.indirect.section->owner)(((p->u.indirect.section->owner)->xvec->flavour) == bfd_target_coff_flavour || ((p->u.indirect.section->owner )->xvec->flavour) == bfd_target_xcoff_flavour)) |
893 | { |
894 | sub = p->u.indirect.section->owner; |
895 | if (! bfd_coff_link_output_has_begun (sub, & finfo)((((bfd_coff_backend_data *) (sub)->xvec->backend_data) ->_bfd_coff_link_output_has_begun) (sub,& finfo))) |
896 | { |
897 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) |
898 | goto error_return; |
899 | sub->output_has_begun = TRUE1; |
900 | } |
901 | } |
902 | else if (p->type == bfd_section_reloc_link_order |
903 | || p->type == bfd_symbol_reloc_link_order) |
904 | { |
905 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) |
906 | goto error_return; |
907 | } |
908 | else |
909 | { |
910 | if (! _bfd_default_link_order (abfd, info, o, p)) |
911 | goto error_return; |
912 | } |
913 | } |
914 | } |
915 | |
916 | if (! bfd_coff_final_link_postscript (abfd, & finfo)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_final_link_postscript) (abfd,& finfo))) |
917 | goto error_return; |
918 | |
919 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ |
920 | |
921 | coff_debug_merge_hash_table_free (&finfo.debug_merge)(bfd_hash_table_free (&(&finfo.debug_merge)->root) ); |
922 | debug_merge_allocated = FALSE0; |
923 | |
924 | if (finfo.internal_syms != NULL((void*)0)) |
925 | { |
926 | free (finfo.internal_syms); |
927 | finfo.internal_syms = NULL((void*)0); |
928 | } |
929 | if (finfo.sec_ptrs != NULL((void*)0)) |
930 | { |
931 | free (finfo.sec_ptrs); |
932 | finfo.sec_ptrs = NULL((void*)0); |
933 | } |
934 | if (finfo.sym_indices != NULL((void*)0)) |
935 | { |
936 | free (finfo.sym_indices); |
937 | finfo.sym_indices = NULL((void*)0); |
938 | } |
939 | if (finfo.linenos != NULL((void*)0)) |
940 | { |
941 | free (finfo.linenos); |
942 | finfo.linenos = NULL((void*)0); |
943 | } |
944 | if (finfo.contents != NULL((void*)0)) |
945 | { |
946 | free (finfo.contents); |
947 | finfo.contents = NULL((void*)0); |
948 | } |
949 | if (finfo.external_relocs != NULL((void*)0)) |
950 | { |
951 | free (finfo.external_relocs); |
952 | finfo.external_relocs = NULL((void*)0); |
953 | } |
954 | if (finfo.internal_relocs != NULL((void*)0)) |
955 | { |
956 | free (finfo.internal_relocs); |
957 | finfo.internal_relocs = NULL((void*)0); |
958 | } |
959 | |
960 | /* The value of the last C_FILE symbol is supposed to be the symbol |
961 | index of the first external symbol. Write it out again if |
962 | necessary. */ |
963 | if (finfo.last_file_index != -1 |
964 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)(((abfd)->tdata.coff_obj_data)->raw_syment_count)) |
965 | { |
966 | file_ptr pos; |
967 | |
968 | finfo.last_file.n_value = obj_raw_syment_count (abfd)(((abfd)->tdata.coff_obj_data)->raw_syment_count); |
969 | bfd_coff_swap_sym_out (abfd, &finfo.last_file,((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (abfd, &finfo.last_file, finfo .outsyms)) |
970 | finfo.outsyms)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (abfd, &finfo.last_file, finfo .outsyms)); |
971 | |
972 | pos = obj_sym_filepos (abfd)(((abfd)->tdata.coff_obj_data)->sym_filepos) + finfo.last_file_index * symesz; |
973 | if (bfd_seek (abfd, pos, SEEK_SET0) != 0 |
974 | || bfd_bwrite (finfo.outsyms, symesz, abfd) != symesz) |
975 | return FALSE0; |
976 | } |
977 | |
978 | /* If doing task linking (ld --task-link) then make a pass through the |
979 | global symbols, writing out any that are defined, and making them |
980 | static. */ |
981 | if (info->task_link) |
982 | { |
983 | finfo.failed = FALSE0; |
984 | coff_link_hash_traverse (coff_hash_table (info),(bfd_link_hash_traverse (&(((struct coff_link_hash_table * ) ((info)->hash)))->root, (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (_bfd_coff_write_task_globals), (&finfo))) |
985 | _bfd_coff_write_task_globals, &finfo)(bfd_link_hash_traverse (&(((struct coff_link_hash_table * ) ((info)->hash)))->root, (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (_bfd_coff_write_task_globals), (&finfo))); |
986 | if (finfo.failed) |
987 | goto error_return; |
988 | } |
989 | |
990 | /* Write out the global symbols. */ |
991 | finfo.failed = FALSE0; |
992 | coff_link_hash_traverse (coff_hash_table (info),(bfd_link_hash_traverse (&(((struct coff_link_hash_table * ) ((info)->hash)))->root, (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (_bfd_coff_write_global_sym), (&finfo))) |
993 | _bfd_coff_write_global_sym, &finfo)(bfd_link_hash_traverse (&(((struct coff_link_hash_table * ) ((info)->hash)))->root, (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (_bfd_coff_write_global_sym), (&finfo))); |
994 | if (finfo.failed) |
995 | goto error_return; |
996 | |
997 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ |
998 | if (finfo.outsyms != NULL((void*)0)) |
999 | { |
1000 | free (finfo.outsyms); |
1001 | finfo.outsyms = NULL((void*)0); |
1002 | } |
1003 | |
1004 | if (info->relocatable && max_output_reloc_count > 0) |
1005 | { |
1006 | /* Now that we have written out all the global symbols, we know |
1007 | the symbol indices to use for relocs against them, and we can |
1008 | finally write out the relocs. */ |
1009 | amt = max_output_reloc_count * relsz; |
1010 | external_relocs = bfd_malloc (amt); |
1011 | if (external_relocs == NULL((void*)0)) |
1012 | goto error_return; |
1013 | |
1014 | for (o = abfd->sections; o != NULL((void*)0); o = o->next) |
1015 | { |
1016 | struct internal_reloc *irel; |
1017 | struct internal_reloc *irelend; |
1018 | struct coff_link_hash_entry **rel_hash; |
1019 | bfd_byte *erel; |
1020 | |
1021 | if (o->reloc_count == 0) |
1022 | continue; |
1023 | |
1024 | irel = finfo.section_info[o->target_index].relocs; |
1025 | irelend = irel + o->reloc_count; |
1026 | rel_hash = finfo.section_info[o->target_index].rel_hashes; |
1027 | erel = external_relocs; |
1028 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) |
1029 | { |
1030 | if (*rel_hash != NULL((void*)0)) |
1031 | { |
1032 | BFD_ASSERT ((*rel_hash)->indx >= 0){ if (!((*rel_hash)->indx >= 0)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,1032); }; |
1033 | irel->r_symndx = (*rel_hash)->indx; |
1034 | } |
1035 | bfd_coff_swap_reloc_out (abfd, irel, erel)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_reloc_out) (abfd, irel, erel)); |
1036 | } |
1037 | |
1038 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET0) != 0) |
1039 | goto error_return; |
1040 | if (obj_pe (abfd)(((abfd)->tdata.coff_obj_data)->pe) && o->reloc_count >= 0xffff) |
1041 | { |
1042 | /* In PE COFF, write the count of relocs as the first |
1043 | reloc. The header overflow bit will be set |
1044 | elsewhere. */ |
1045 | struct internal_reloc incount; |
1046 | bfd_byte *excount = (bfd_byte *)bfd_malloc (relsz); |
1047 | |
1048 | memset (&incount, 0, sizeof (incount)); |
1049 | incount.r_vaddr = o->reloc_count + 1; |
1050 | bfd_coff_swap_reloc_out (abfd, (PTR) &incount, (PTR) excount)((((bfd_coff_backend_data *) (abfd)->xvec->backend_data )->_bfd_coff_swap_reloc_out) (abfd, (void *) &incount, (void *) excount)); |
1051 | if (bfd_bwrite (excount, relsz, abfd) != relsz) |
1052 | /* We'll leak, but it's an error anyway. */ |
1053 | goto error_return; |
1054 | free (excount); |
1055 | } |
1056 | if (bfd_bwrite (external_relocs, |
1057 | (bfd_size_type) relsz * o->reloc_count, abfd) |
1058 | != (bfd_size_type) relsz * o->reloc_count) |
1059 | goto error_return; |
1060 | } |
1061 | |
1062 | free (external_relocs); |
1063 | external_relocs = NULL((void*)0); |
1064 | } |
1065 | |
1066 | /* Free up the section information. */ |
1067 | if (finfo.section_info != NULL((void*)0)) |
1068 | { |
1069 | unsigned int i; |
1070 | |
1071 | for (i = 0; i < abfd->section_count; i++) |
1072 | { |
1073 | if (finfo.section_info[i].relocs != NULL((void*)0)) |
1074 | free (finfo.section_info[i].relocs); |
1075 | if (finfo.section_info[i].rel_hashes != NULL((void*)0)) |
1076 | free (finfo.section_info[i].rel_hashes); |
1077 | } |
1078 | free (finfo.section_info); |
1079 | finfo.section_info = NULL((void*)0); |
1080 | } |
1081 | |
1082 | /* If we have optimized stabs strings, output them. */ |
1083 | if (coff_hash_table (info)((struct coff_link_hash_table *) ((info)->hash))->stab_info != NULL((void*)0)) |
1084 | { |
1085 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)((struct coff_link_hash_table *) ((info)->hash))->stab_info)) |
1086 | return FALSE0; |
1087 | } |
1088 | |
1089 | /* Write out the string table. */ |
1090 | if (obj_raw_syment_count (abfd)(((abfd)->tdata.coff_obj_data)->raw_syment_count) != 0 || long_section_names) |
1091 | { |
1092 | file_ptr pos; |
1093 | |
1094 | pos = obj_sym_filepos (abfd)(((abfd)->tdata.coff_obj_data)->sym_filepos) + obj_raw_syment_count (abfd)(((abfd)->tdata.coff_obj_data)->raw_syment_count) * symesz; |
1095 | if (bfd_seek (abfd, pos, SEEK_SET0) != 0) |
1096 | return FALSE0; |
1097 | |
1098 | #if STRING_SIZE_SIZE(4) == 4 |
1099 | H_PUT_32 (abfd,((*((abfd)->xvec->bfd_h_putx32)) (_bfd_stringtab_size ( finfo.strtab) + (4), strbuf)) |
1100 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,((*((abfd)->xvec->bfd_h_putx32)) (_bfd_stringtab_size ( finfo.strtab) + (4), strbuf)) |
1101 | strbuf)((*((abfd)->xvec->bfd_h_putx32)) (_bfd_stringtab_size ( finfo.strtab) + (4), strbuf)); |
1102 | #else |
1103 | #error Change H_PUT_32bfd_h_put_32 above |
1104 | #endif |
1105 | |
1106 | if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE(4), abfd) |
1107 | != STRING_SIZE_SIZE(4)) |
1108 | return FALSE0; |
1109 | |
1110 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) |
1111 | return FALSE0; |
1112 | |
1113 | obj_coff_strings_written (abfd)(((abfd)->tdata.coff_obj_data)->strings_written) = TRUE1; |
1114 | } |
1115 | |
1116 | _bfd_stringtab_free (finfo.strtab); |
1117 | |
1118 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to |
1119 | not try to write out the symbols. */ |
1120 | bfd_get_symcount (abfd)((abfd)->symcount) = 0; |
1121 | |
1122 | return TRUE1; |
1123 | |
1124 | error_return: |
1125 | if (debug_merge_allocated) |
1126 | coff_debug_merge_hash_table_free (&finfo.debug_merge)(bfd_hash_table_free (&(&finfo.debug_merge)->root) ); |
1127 | if (finfo.strtab != NULL((void*)0)) |
1128 | _bfd_stringtab_free (finfo.strtab); |
1129 | if (finfo.section_info != NULL((void*)0)) |
1130 | { |
1131 | unsigned int i; |
1132 | |
1133 | for (i = 0; i < abfd->section_count; i++) |
1134 | { |
1135 | if (finfo.section_info[i].relocs != NULL((void*)0)) |
1136 | free (finfo.section_info[i].relocs); |
1137 | if (finfo.section_info[i].rel_hashes != NULL((void*)0)) |
1138 | free (finfo.section_info[i].rel_hashes); |
1139 | } |
1140 | free (finfo.section_info); |
1141 | } |
1142 | if (finfo.internal_syms != NULL((void*)0)) |
1143 | free (finfo.internal_syms); |
1144 | if (finfo.sec_ptrs != NULL((void*)0)) |
1145 | free (finfo.sec_ptrs); |
1146 | if (finfo.sym_indices != NULL((void*)0)) |
1147 | free (finfo.sym_indices); |
1148 | if (finfo.outsyms != NULL((void*)0)) |
1149 | free (finfo.outsyms); |
1150 | if (finfo.linenos != NULL((void*)0)) |
1151 | free (finfo.linenos); |
1152 | if (finfo.contents != NULL((void*)0)) |
1153 | free (finfo.contents); |
1154 | if (finfo.external_relocs != NULL((void*)0)) |
1155 | free (finfo.external_relocs); |
1156 | if (finfo.internal_relocs != NULL((void*)0)) |
1157 | free (finfo.internal_relocs); |
1158 | if (external_relocs != NULL((void*)0)) |
1159 | free (external_relocs); |
1160 | return FALSE0; |
1161 | } |
1162 | |
1163 | /* Parse out a -heap <reserved>,<commit> line. */ |
1164 | |
1165 | static char * |
1166 | dores_com (char *ptr, bfd *output_bfd, int heap) |
1167 | { |
1168 | if (coff_data(output_bfd)((output_bfd)->tdata.coff_obj_data)->pe) |
1169 | { |
1170 | int val = strtoul (ptr, &ptr, 0); |
1171 | |
1172 | if (heap) |
1173 | pe_data(output_bfd)((output_bfd)->tdata.pe_obj_data)->pe_opthdr.SizeOfHeapReserve = val; |
1174 | else |
1175 | pe_data(output_bfd)((output_bfd)->tdata.pe_obj_data)->pe_opthdr.SizeOfStackReserve = val; |
1176 | |
1177 | if (ptr[0] == ',') |
1178 | { |
1179 | val = strtoul (ptr+1, &ptr, 0); |
1180 | if (heap) |
1181 | pe_data(output_bfd)((output_bfd)->tdata.pe_obj_data)->pe_opthdr.SizeOfHeapCommit = val; |
1182 | else |
1183 | pe_data(output_bfd)((output_bfd)->tdata.pe_obj_data)->pe_opthdr.SizeOfStackCommit = val; |
1184 | } |
1185 | } |
1186 | return ptr; |
1187 | } |
1188 | |
1189 | static char * |
1190 | get_name (char *ptr, char **dst) |
1191 | { |
1192 | while (*ptr == ' ') |
1193 | ptr++; |
1194 | *dst = ptr; |
1195 | while (*ptr && *ptr != ' ') |
1196 | ptr++; |
1197 | *ptr = 0; |
1198 | return ptr+1; |
1199 | } |
1200 | |
1201 | /* Process any magic embedded commands in a section called .drectve. */ |
1202 | |
1203 | static int |
1204 | process_embedded_commands (bfd *output_bfd, |
1205 | struct bfd_link_info *info ATTRIBUTE_UNUSED__attribute__ ((__unused__)), |
1206 | bfd *abfd) |
1207 | { |
1208 | asection *sec = bfd_get_section_by_name (abfd, ".drectve"); |
1209 | char *s; |
1210 | char *e; |
1211 | char *copy; |
1212 | |
1213 | if (!sec) |
1214 | return 1; |
1215 | |
1216 | copy = bfd_malloc (sec->_raw_size); |
1217 | if (!copy) |
1218 | return 0; |
1219 | |
1220 | if (! bfd_get_section_contents (abfd, sec, copy, (bfd_vma) 0, sec->_raw_size)) |
1221 | { |
1222 | free (copy); |
1223 | return 0; |
1224 | } |
1225 | e = copy + sec->_raw_size; |
1226 | |
1227 | for (s = copy; s < e ; ) |
1228 | { |
1229 | if (s[0]!= '-') |
1230 | { |
1231 | s++; |
1232 | continue; |
1233 | } |
1234 | if (strncmp (s,"-attr", 5) == 0) |
1235 | { |
1236 | char *name; |
1237 | char *attribs; |
1238 | asection *asec; |
1239 | int loop = 1; |
1240 | int had_write = 0; |
1241 | int had_read = 0; |
1242 | int had_exec= 0; |
1243 | int had_shared= 0; |
1244 | |
1245 | s += 5; |
1246 | s = get_name (s, &name); |
1247 | s = get_name (s, &attribs); |
1248 | |
1249 | while (loop) |
1250 | { |
1251 | switch (*attribs++) |
1252 | { |
1253 | case 'W': |
1254 | had_write = 1; |
1255 | break; |
1256 | case 'R': |
1257 | had_read = 1; |
Value stored to 'had_read' is never read | |
1258 | break; |
1259 | case 'S': |
1260 | had_shared = 1; |
1261 | break; |
1262 | case 'X': |
1263 | had_exec = 1; |
1264 | break; |
1265 | default: |
1266 | loop = 0; |
1267 | } |
1268 | } |
1269 | asec = bfd_get_section_by_name (abfd, name); |
1270 | if (asec) |
1271 | { |
1272 | if (had_exec) |
1273 | asec->flags |= SEC_CODE0x020; |
1274 | if (!had_write) |
1275 | asec->flags |= SEC_READONLY0x010; |
1276 | } |
1277 | } |
1278 | else if (strncmp (s,"-heap", 5) == 0) |
1279 | s = dores_com (s+5, output_bfd, 1); |
1280 | |
1281 | else if (strncmp (s,"-stack", 6) == 0) |
1282 | s = dores_com (s+6, output_bfd, 0); |
1283 | |
1284 | else |
1285 | s++; |
1286 | } |
1287 | free (copy); |
1288 | return 1; |
1289 | } |
1290 | |
1291 | /* Place a marker against all symbols which are used by relocations. |
1292 | This marker can be picked up by the 'do we skip this symbol ?' |
1293 | loop in _bfd_coff_link_input_bfd() and used to prevent skipping |
1294 | that symbol. */ |
1295 | |
1296 | static void |
1297 | mark_relocs (struct coff_final_link_info *finfo, bfd *input_bfd) |
1298 | { |
1299 | asection * a; |
1300 | |
1301 | if ((bfd_get_file_flags (input_bfd)((input_bfd)->flags) & HAS_SYMS0x10) == 0) |
1302 | return; |
1303 | |
1304 | for (a = input_bfd->sections; a != (asection *) NULL((void*)0); a = a->next) |
1305 | { |
1306 | struct internal_reloc * internal_relocs; |
1307 | struct internal_reloc * irel; |
1308 | struct internal_reloc * irelend; |
1309 | |
1310 | if ((a->flags & SEC_RELOC0x004) == 0 || a->reloc_count < 1) |
1311 | continue; |
1312 | /* Don't mark relocs in excluded sections. */ |
1313 | if (a->output_section == bfd_abs_section_ptr((asection *) &bfd_abs_section)) |
1314 | continue; |
1315 | |
1316 | /* Read in the relocs. */ |
1317 | internal_relocs = _bfd_coff_read_internal_relocs |
1318 | (input_bfd, a, FALSE0, |
1319 | finfo->external_relocs, |
1320 | finfo->info->relocatable, |
1321 | (finfo->info->relocatable |
1322 | ? (finfo->section_info[ a->output_section->target_index ].relocs + a->output_section->reloc_count) |
1323 | : finfo->internal_relocs) |
1324 | ); |
1325 | |
1326 | if (internal_relocs == NULL((void*)0)) |
1327 | continue; |
1328 | |
1329 | irel = internal_relocs; |
1330 | irelend = irel + a->reloc_count; |
1331 | |
1332 | /* Place a mark in the sym_indices array (whose entries have |
1333 | been initialised to 0) for all of the symbols that are used |
1334 | in the relocation table. This will then be picked up in the |
1335 | skip/don't-skip pass. */ |
1336 | for (; irel < irelend; irel++) |
1337 | finfo->sym_indices[ irel->r_symndx ] = -1; |
1338 | } |
1339 | } |
1340 | |
1341 | /* Link an input file into the linker output file. This function |
1342 | handles all the sections and relocations of the input file at once. */ |
1343 | |
1344 | bfd_boolean |
1345 | _bfd_coff_link_input_bfd (struct coff_final_link_info *finfo, bfd *input_bfd) |
1346 | { |
1347 | unsigned int n_tmask = coff_data (input_bfd)((input_bfd)->tdata.coff_obj_data)->local_n_tmask; |
1348 | unsigned int n_btshft = coff_data (input_bfd)((input_bfd)->tdata.coff_obj_data)->local_n_btshft; |
1349 | #if 0 |
1350 | unsigned int n_btmask = coff_data (input_bfd)((input_bfd)->tdata.coff_obj_data)->local_n_btmask; |
1351 | #endif |
1352 | bfd_boolean (*adjust_symndx) |
1353 | (bfd *, struct bfd_link_info *, bfd *, asection *, |
1354 | struct internal_reloc *, bfd_boolean *); |
1355 | bfd *output_bfd; |
1356 | const char *strings; |
1357 | bfd_size_type syment_base; |
1358 | bfd_boolean copy, hash; |
1359 | bfd_size_type isymesz; |
1360 | bfd_size_type osymesz; |
1361 | bfd_size_type linesz; |
1362 | bfd_byte *esym; |
1363 | bfd_byte *esym_end; |
1364 | struct internal_syment *isymp; |
1365 | asection **secpp; |
1366 | long *indexp; |
1367 | unsigned long output_index; |
1368 | bfd_byte *outsym; |
1369 | struct coff_link_hash_entry **sym_hash; |
1370 | asection *o; |
1371 | |
1372 | /* Move all the symbols to the output file. */ |
1373 | |
1374 | output_bfd = finfo->output_bfd; |
1375 | strings = NULL((void*)0); |
1376 | syment_base = obj_raw_syment_count (output_bfd)(((output_bfd)->tdata.coff_obj_data)->raw_syment_count); |
1377 | isymesz = bfd_coff_symesz (input_bfd)(((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_symesz); |
1378 | osymesz = bfd_coff_symesz (output_bfd)(((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_symesz); |
1379 | linesz = bfd_coff_linesz (input_bfd)(((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_linesz); |
1380 | BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)){ if (!(linesz == (((bfd_coff_backend_data *) (output_bfd)-> xvec->backend_data)->_bfd_linesz))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,1380); }; |
1381 | |
1382 | copy = FALSE0; |
1383 | if (! finfo->info->keep_memory) |
1384 | copy = TRUE1; |
1385 | hash = TRUE1; |
1386 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT0x400) != 0) |
1387 | hash = FALSE0; |
1388 | |
1389 | if (! _bfd_coff_get_external_symbols (input_bfd)) |
1390 | return FALSE0; |
1391 | |
1392 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd)(((input_bfd)->tdata.coff_obj_data)->external_syms); |
1393 | esym_end = esym + obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count) * isymesz; |
1394 | isymp = finfo->internal_syms; |
1395 | secpp = finfo->sec_ptrs; |
1396 | indexp = finfo->sym_indices; |
1397 | output_index = syment_base; |
1398 | outsym = finfo->outsyms; |
1399 | |
1400 | if (coff_data (output_bfd)((output_bfd)->tdata.coff_obj_data)->pe |
1401 | && ! process_embedded_commands (output_bfd, finfo->info, input_bfd)) |
1402 | return FALSE0; |
1403 | |
1404 | /* If we are going to perform relocations and also strip/discard some |
1405 | symbols then we must make sure that we do not strip/discard those |
1406 | symbols that are going to be involved in the relocations. */ |
1407 | if (( finfo->info->strip != strip_none |
1408 | || finfo->info->discard != discard_none) |
1409 | && finfo->info->relocatable) |
1410 | { |
1411 | /* Mark the symbol array as 'not-used'. */ |
1412 | memset (indexp, 0, obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count) * sizeof * indexp); |
1413 | |
1414 | mark_relocs (finfo, input_bfd); |
1415 | } |
1416 | |
1417 | while (esym < esym_end) |
1418 | { |
1419 | struct internal_syment isym; |
1420 | enum coff_symbol_classification classification; |
1421 | bfd_boolean skip; |
1422 | bfd_boolean global; |
1423 | bfd_boolean dont_skip_symbol; |
1424 | int add; |
1425 | |
1426 | bfd_coff_swap_sym_in (input_bfd, esym, isymp)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (input_bfd,esym,isymp)); |
1427 | |
1428 | /* Make a copy of *isymp so that the relocate_section function |
1429 | always sees the original values. This is more reliable than |
1430 | always recomputing the symbol value even if we are stripping |
1431 | the symbol. */ |
1432 | isym = *isymp; |
1433 | |
1434 | classification = bfd_coff_classify_symbol (input_bfd, &isym)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_classify_symbol) (input_bfd, &isym)); |
1435 | switch (classification) |
1436 | { |
1437 | default: |
1438 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c", 1438 , __PRETTY_FUNCTION__); |
1439 | case COFF_SYMBOL_GLOBAL: |
1440 | case COFF_SYMBOL_PE_SECTION: |
1441 | case COFF_SYMBOL_LOCAL: |
1442 | *secpp = coff_section_from_bfd_index (input_bfd, isym.n_scnum); |
1443 | break; |
1444 | case COFF_SYMBOL_COMMON: |
1445 | *secpp = bfd_com_section_ptr((asection *) &bfd_com_section); |
1446 | break; |
1447 | case COFF_SYMBOL_UNDEFINED: |
1448 | *secpp = bfd_und_section_ptr((asection *) &bfd_und_section); |
1449 | break; |
1450 | } |
1451 | |
1452 | /* Extract the flag indicating if this symbol is used by a |
1453 | relocation. */ |
1454 | if ((finfo->info->strip != strip_none |
1455 | || finfo->info->discard != discard_none) |
1456 | && finfo->info->relocatable) |
1457 | dont_skip_symbol = *indexp; |
1458 | else |
1459 | dont_skip_symbol = FALSE0; |
1460 | |
1461 | *indexp = -1; |
1462 | |
1463 | skip = FALSE0; |
1464 | global = FALSE0; |
1465 | add = 1 + isym.n_numaux; |
1466 | |
1467 | /* If we are stripping all symbols, we want to skip this one. */ |
1468 | if (finfo->info->strip == strip_all && ! dont_skip_symbol) |
1469 | skip = TRUE1; |
1470 | |
1471 | if (! skip) |
1472 | { |
1473 | switch (classification) |
1474 | { |
1475 | default: |
1476 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c", 1476 , __PRETTY_FUNCTION__); |
1477 | case COFF_SYMBOL_GLOBAL: |
1478 | case COFF_SYMBOL_COMMON: |
1479 | case COFF_SYMBOL_PE_SECTION: |
1480 | /* This is a global symbol. Global symbols come at the |
1481 | end of the symbol table, so skip them for now. |
1482 | Locally defined function symbols, however, are an |
1483 | exception, and are not moved to the end. */ |
1484 | global = TRUE1; |
1485 | if (! ISFCN (isym.n_type)(((unsigned long) (isym.n_type) & n_tmask) == ((unsigned long ) (2) << n_btshft))) |
1486 | skip = TRUE1; |
1487 | break; |
1488 | |
1489 | case COFF_SYMBOL_UNDEFINED: |
1490 | /* Undefined symbols are left for the end. */ |
1491 | global = TRUE1; |
1492 | skip = TRUE1; |
1493 | break; |
1494 | |
1495 | case COFF_SYMBOL_LOCAL: |
1496 | /* This is a local symbol. Skip it if we are discarding |
1497 | local symbols. */ |
1498 | if (finfo->info->discard == discard_all && ! dont_skip_symbol) |
1499 | skip = TRUE1; |
1500 | break; |
1501 | } |
1502 | } |
1503 | |
1504 | #ifndef COFF_WITH_PE |
1505 | /* Skip section symbols for sections which are not going to be |
1506 | emitted. */ |
1507 | if (!skip |
1508 | && dont_skip_symbol == 0 |
1509 | && isym.n_sclass == C_STAT3 |
1510 | && isym.n_type == T_NULL0 |
1511 | && isym.n_numaux > 0 |
1512 | && (*secpp)->output_section == bfd_abs_section_ptr((asection *) &bfd_abs_section)) |
1513 | skip = TRUE1; |
1514 | #endif |
1515 | |
1516 | /* If we stripping debugging symbols, and this is a debugging |
1517 | symbol, then skip it. FIXME: gas sets the section to N_ABS |
1518 | for some types of debugging symbols; I don't know if this is |
1519 | a bug or not. In any case, we handle it here. */ |
1520 | if (! skip |
1521 | && finfo->info->strip == strip_debugger |
1522 | && ! dont_skip_symbol |
1523 | && (isym.n_scnum == N_DEBUG((short)-2) |
1524 | || (isym.n_scnum == N_ABS((short)-1) |
1525 | && (isym.n_sclass == C_AUTO1 |
1526 | || isym.n_sclass == C_REG4 |
1527 | || isym.n_sclass == C_MOS8 |
1528 | || isym.n_sclass == C_MOE16 |
1529 | || isym.n_sclass == C_MOU11 |
1530 | || isym.n_sclass == C_ARG9 |
1531 | || isym.n_sclass == C_REGPARM17 |
1532 | || isym.n_sclass == C_FIELD18 |
1533 | || isym.n_sclass == C_EOS102)))) |
1534 | skip = TRUE1; |
1535 | |
1536 | /* If some symbols are stripped based on the name, work out the |
1537 | name and decide whether to skip this symbol. */ |
1538 | if (! skip |
1539 | && (finfo->info->strip == strip_some |
1540 | || finfo->info->discard == discard_l)) |
1541 | { |
1542 | const char *name; |
1543 | char buf[SYMNMLEN8 + 1]; |
1544 | |
1545 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); |
1546 | if (name == NULL((void*)0)) |
1547 | return FALSE0; |
1548 | |
1549 | if (! dont_skip_symbol |
1550 | && ((finfo->info->strip == strip_some |
1551 | && (bfd_hash_lookup (finfo->info->keep_hash, name, FALSE0, |
1552 | FALSE0) == NULL((void*)0))) |
1553 | || (! global |
1554 | && finfo->info->discard == discard_l |
1555 | && bfd_is_local_label_name (input_bfd, name)((*((input_bfd)->xvec->_bfd_is_local_label_name)) (input_bfd , name))))) |
1556 | skip = TRUE1; |
1557 | } |
1558 | |
1559 | /* If this is an enum, struct, or union tag, see if we have |
1560 | already output an identical type. */ |
1561 | if (! skip |
1562 | && (finfo->output_bfd->flags & BFD_TRADITIONAL_FORMAT0x400) == 0 |
1563 | && (isym.n_sclass == C_ENTAG15 |
1564 | || isym.n_sclass == C_STRTAG10 |
1565 | || isym.n_sclass == C_UNTAG12) |
1566 | && isym.n_numaux == 1) |
1567 | { |
1568 | const char *name; |
1569 | char buf[SYMNMLEN8 + 1]; |
1570 | struct coff_debug_merge_hash_entry *mh; |
1571 | struct coff_debug_merge_type *mt; |
1572 | union internal_auxent aux; |
1573 | struct coff_debug_merge_element **epp; |
1574 | bfd_byte *esl, *eslend; |
1575 | struct internal_syment *islp; |
1576 | bfd_size_type amt; |
1577 | |
1578 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); |
1579 | if (name == NULL((void*)0)) |
1580 | return FALSE0; |
1581 | |
1582 | /* Ignore fake names invented by compiler; treat them all as |
1583 | the same name. */ |
1584 | if (*name == '~' || *name == '.' || *name == '$' |
1585 | || (*name == bfd_get_symbol_leading_char (input_bfd)((input_bfd)->xvec->symbol_leading_char) |
1586 | && (name[1] == '~' || name[1] == '.' || name[1] == '$'))) |
1587 | name = ""; |
1588 | |
1589 | mh = coff_debug_merge_hash_lookup (&finfo->debug_merge, name,((struct coff_debug_merge_hash_entry *) bfd_hash_lookup (& (&finfo->debug_merge)->root, (name), (1), (1))) |
1590 | TRUE, TRUE)((struct coff_debug_merge_hash_entry *) bfd_hash_lookup (& (&finfo->debug_merge)->root, (name), (1), (1))); |
1591 | if (mh == NULL((void*)0)) |
1592 | return FALSE0; |
1593 | |
1594 | /* Allocate memory to hold type information. If this turns |
1595 | out to be a duplicate, we pass this address to |
1596 | bfd_release. */ |
1597 | amt = sizeof (struct coff_debug_merge_type); |
1598 | mt = bfd_alloc (input_bfd, amt); |
1599 | if (mt == NULL((void*)0)) |
1600 | return FALSE0; |
1601 | mt->class = isym.n_sclass; |
1602 | |
1603 | /* Pick up the aux entry, which points to the end of the tag |
1604 | entries. */ |
1605 | bfd_coff_swap_aux_in (input_bfd, (esym + isymesz),((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,(esym + isymesz),isym .n_type,isym.n_sclass,0,isym.n_numaux,&aux)) |
1606 | isym.n_type, isym.n_sclass, 0, isym.n_numaux,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,(esym + isymesz),isym .n_type,isym.n_sclass,0,isym.n_numaux,&aux)) |
1607 | &aux)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,(esym + isymesz),isym .n_type,isym.n_sclass,0,isym.n_numaux,&aux)); |
1608 | |
1609 | /* Gather the elements. */ |
1610 | epp = &mt->elements; |
1611 | mt->elements = NULL((void*)0); |
1612 | islp = isymp + 2; |
1613 | esl = esym + 2 * isymesz; |
1614 | eslend = ((bfd_byte *) obj_coff_external_syms (input_bfd)(((input_bfd)->tdata.coff_obj_data)->external_syms) |
1615 | + aux.x_sym.x_fcnary.x_fcn.x_endndx.l * isymesz); |
1616 | while (esl < eslend) |
1617 | { |
1618 | const char *elename; |
1619 | char elebuf[SYMNMLEN8 + 1]; |
1620 | char *name_copy; |
1621 | |
1622 | bfd_coff_swap_sym_in (input_bfd, esl, islp)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (input_bfd,esl,islp)); |
1623 | |
1624 | amt = sizeof (struct coff_debug_merge_element); |
1625 | *epp = bfd_alloc (input_bfd, amt); |
1626 | if (*epp == NULL((void*)0)) |
1627 | return FALSE0; |
1628 | |
1629 | elename = _bfd_coff_internal_syment_name (input_bfd, islp, |
1630 | elebuf); |
1631 | if (elename == NULL((void*)0)) |
1632 | return FALSE0; |
1633 | |
1634 | amt = strlen (elename) + 1; |
1635 | name_copy = bfd_alloc (input_bfd, amt); |
1636 | if (name_copy == NULL((void*)0)) |
1637 | return FALSE0; |
1638 | strcpy (name_copy, elename); |
1639 | |
1640 | (*epp)->name = name_copy; |
1641 | (*epp)->type = islp->n_type; |
1642 | (*epp)->tagndx = 0; |
1643 | if (islp->n_numaux >= 1 |
1644 | && islp->n_type != T_NULL0 |
1645 | && islp->n_sclass != C_EOS102) |
1646 | { |
1647 | union internal_auxent eleaux; |
1648 | long indx; |
1649 | |
1650 | bfd_coff_swap_aux_in (input_bfd, (esl + isymesz),((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,(esl + isymesz),islp-> n_type,islp->n_sclass,0,islp->n_numaux,&eleaux)) |
1651 | islp->n_type, islp->n_sclass, 0,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,(esl + isymesz),islp-> n_type,islp->n_sclass,0,islp->n_numaux,&eleaux)) |
1652 | islp->n_numaux, &eleaux)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,(esl + isymesz),islp-> n_type,islp->n_sclass,0,islp->n_numaux,&eleaux)); |
1653 | indx = eleaux.x_sym.x_tagndx.l; |
1654 | |
1655 | /* FIXME: If this tagndx entry refers to a symbol |
1656 | defined later in this file, we just ignore it. |
1657 | Handling this correctly would be tedious, and may |
1658 | not be required. */ |
1659 | if (indx > 0 |
1660 | && (indx |
1661 | < ((esym - |
1662 | (bfd_byte *) obj_coff_external_syms (input_bfd)(((input_bfd)->tdata.coff_obj_data)->external_syms)) |
1663 | / (long) isymesz))) |
1664 | { |
1665 | (*epp)->tagndx = finfo->sym_indices[indx]; |
1666 | if ((*epp)->tagndx < 0) |
1667 | (*epp)->tagndx = 0; |
1668 | } |
1669 | } |
1670 | epp = &(*epp)->next; |
1671 | *epp = NULL((void*)0); |
1672 | |
1673 | esl += (islp->n_numaux + 1) * isymesz; |
1674 | islp += islp->n_numaux + 1; |
1675 | } |
1676 | |
1677 | /* See if we already have a definition which matches this |
1678 | type. We always output the type if it has no elements, |
1679 | for simplicity. */ |
1680 | if (mt->elements == NULL((void*)0)) |
1681 | bfd_release (input_bfd, mt); |
1682 | else |
1683 | { |
1684 | struct coff_debug_merge_type *mtl; |
1685 | |
1686 | for (mtl = mh->types; mtl != NULL((void*)0); mtl = mtl->next) |
1687 | { |
1688 | struct coff_debug_merge_element *me, *mel; |
1689 | |
1690 | if (mtl->class != mt->class) |
1691 | continue; |
1692 | |
1693 | for (me = mt->elements, mel = mtl->elements; |
1694 | me != NULL((void*)0) && mel != NULL((void*)0); |
1695 | me = me->next, mel = mel->next) |
1696 | { |
1697 | if (strcmp (me->name, mel->name) != 0 |
1698 | || me->type != mel->type |
1699 | || me->tagndx != mel->tagndx) |
1700 | break; |
1701 | } |
1702 | |
1703 | if (me == NULL((void*)0) && mel == NULL((void*)0)) |
1704 | break; |
1705 | } |
1706 | |
1707 | if (mtl == NULL((void*)0) || (bfd_size_type) mtl->indx >= syment_base) |
1708 | { |
1709 | /* This is the first definition of this type. */ |
1710 | mt->indx = output_index; |
1711 | mt->next = mh->types; |
1712 | mh->types = mt; |
1713 | } |
1714 | else |
1715 | { |
1716 | /* This is a redefinition which can be merged. */ |
1717 | bfd_release (input_bfd, mt); |
1718 | *indexp = mtl->indx; |
1719 | add = (eslend - esym) / isymesz; |
1720 | skip = TRUE1; |
1721 | } |
1722 | } |
1723 | } |
1724 | |
1725 | /* We now know whether we are to skip this symbol or not. */ |
1726 | if (! skip) |
1727 | { |
1728 | /* Adjust the symbol in order to output it. */ |
1729 | |
1730 | if (isym._n._n_n._n_zeroes == 0 |
1731 | && isym._n._n_n._n_offset != 0) |
1732 | { |
1733 | const char *name; |
1734 | bfd_size_type indx; |
1735 | |
1736 | /* This symbol has a long name. Enter it in the string |
1737 | table we are building. Note that we do not check |
1738 | bfd_coff_symname_in_debug. That is only true for |
1739 | XCOFF, and XCOFF requires different linking code |
1740 | anyhow. */ |
1741 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, NULL((void*)0)); |
1742 | if (name == NULL((void*)0)) |
1743 | return FALSE0; |
1744 | indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy); |
1745 | if (indx == (bfd_size_type) -1) |
1746 | return FALSE0; |
1747 | isym._n._n_n._n_offset = STRING_SIZE_SIZE(4) + indx; |
1748 | } |
1749 | |
1750 | switch (isym.n_sclass) |
1751 | { |
1752 | case C_AUTO1: |
1753 | case C_MOS8: |
1754 | case C_EOS102: |
1755 | case C_MOE16: |
1756 | case C_MOU11: |
1757 | case C_UNTAG12: |
1758 | case C_STRTAG10: |
1759 | case C_ENTAG15: |
1760 | case C_TPDEF13: |
1761 | case C_ARG9: |
1762 | case C_USTATIC14: |
1763 | case C_REG4: |
1764 | case C_REGPARM17: |
1765 | case C_FIELD18: |
1766 | /* The symbol value should not be modified. */ |
1767 | break; |
1768 | |
1769 | case C_FCN101: |
1770 | if (obj_pe (input_bfd)(((input_bfd)->tdata.coff_obj_data)->pe) |
1771 | && strcmp (isym.n_name_n._n_name, ".bf") != 0 |
1772 | && isym.n_scnum > 0) |
1773 | { |
1774 | /* For PE, .lf and .ef get their value left alone, |
1775 | while .bf gets relocated. However, they all have |
1776 | "real" section numbers, and need to be moved into |
1777 | the new section. */ |
1778 | isym.n_scnum = (*secpp)->output_section->target_index; |
1779 | break; |
1780 | } |
1781 | /* Fall through. */ |
1782 | default: |
1783 | case C_LABEL6: /* Not completely sure about these 2 */ |
1784 | case C_EXTDEF5: |
1785 | case C_BLOCK100: |
1786 | case C_EFCN0xff: |
1787 | case C_NULL0: |
1788 | case C_EXT2: |
1789 | case C_STAT3: |
1790 | case C_SECTION104: |
1791 | case C_NT_WEAK105: |
1792 | /* Compute new symbol location. */ |
1793 | if (isym.n_scnum > 0) |
1794 | { |
1795 | isym.n_scnum = (*secpp)->output_section->target_index; |
1796 | isym.n_value += (*secpp)->output_offset; |
1797 | if (! obj_pe (input_bfd)(((input_bfd)->tdata.coff_obj_data)->pe)) |
1798 | isym.n_value -= (*secpp)->vma; |
1799 | if (! obj_pe (finfo->output_bfd)(((finfo->output_bfd)->tdata.coff_obj_data)->pe)) |
1800 | isym.n_value += (*secpp)->output_section->vma; |
1801 | } |
1802 | break; |
1803 | |
1804 | case C_FILE103: |
1805 | /* The value of a C_FILE symbol is the symbol index of |
1806 | the next C_FILE symbol. The value of the last C_FILE |
1807 | symbol is the symbol index to the first external |
1808 | symbol (actually, coff_renumber_symbols does not get |
1809 | this right--it just sets the value of the last C_FILE |
1810 | symbol to zero--and nobody has ever complained about |
1811 | it). We try to get this right, below, just before we |
1812 | write the symbols out, but in the general case we may |
1813 | have to write the symbol out twice. */ |
1814 | if (finfo->last_file_index != -1 |
1815 | && finfo->last_file.n_value != (bfd_vma) output_index) |
1816 | { |
1817 | /* We must correct the value of the last C_FILE |
1818 | entry. */ |
1819 | finfo->last_file.n_value = output_index; |
1820 | if ((bfd_size_type) finfo->last_file_index >= syment_base) |
1821 | { |
1822 | /* The last C_FILE symbol is in this input file. */ |
1823 | bfd_coff_swap_sym_out (output_bfd,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
1824 | &finfo->last_file,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
1825 | (finfo->outsyms((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
1826 | + ((finfo->last_file_index((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
1827 | - syment_base)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
1828 | * osymesz)))((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))); |
1829 | } |
1830 | else |
1831 | { |
1832 | file_ptr pos; |
1833 | |
1834 | /* We have already written out the last C_FILE |
1835 | symbol. We need to write it out again. We |
1836 | borrow *outsym temporarily. */ |
1837 | bfd_coff_swap_sym_out (output_bfd,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , outsym)) |
1838 | &finfo->last_file, outsym)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , outsym)); |
1839 | pos = obj_sym_filepos (output_bfd)(((output_bfd)->tdata.coff_obj_data)->sym_filepos); |
1840 | pos += finfo->last_file_index * osymesz; |
1841 | if (bfd_seek (output_bfd, pos, SEEK_SET0) != 0 |
1842 | || bfd_bwrite (outsym, osymesz, output_bfd) != osymesz) |
1843 | return FALSE0; |
1844 | } |
1845 | } |
1846 | |
1847 | finfo->last_file_index = output_index; |
1848 | finfo->last_file = isym; |
1849 | break; |
1850 | } |
1851 | |
1852 | /* If doing task linking, convert normal global function symbols to |
1853 | static functions. */ |
1854 | if (finfo->info->task_link && IS_EXTERNAL (input_bfd, isym)((isym).n_sclass == 2 || ((isym).n_sclass == 127 || ((((input_bfd )->tdata.coff_obj_data)->pe) && (isym).n_sclass == 105)))) |
1855 | isym.n_sclass = C_STAT3; |
1856 | |
1857 | /* Output the symbol. */ |
1858 | bfd_coff_swap_sym_out (output_bfd, &isym, outsym)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &isym, outsym) ); |
1859 | |
1860 | *indexp = output_index; |
1861 | |
1862 | if (global) |
1863 | { |
1864 | long indx; |
1865 | struct coff_link_hash_entry *h; |
1866 | |
1867 | indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd)(((input_bfd)->tdata.coff_obj_data)->external_syms)) |
1868 | / isymesz); |
1869 | h = obj_coff_sym_hashes (input_bfd)(((input_bfd)->tdata.coff_obj_data)->sym_hashes)[indx]; |
1870 | if (h == NULL((void*)0)) |
1871 | { |
1872 | /* This can happen if there were errors earlier in |
1873 | the link. */ |
1874 | bfd_set_error (bfd_error_bad_value); |
1875 | return FALSE0; |
1876 | } |
1877 | h->indx = output_index; |
1878 | } |
1879 | |
1880 | output_index += add; |
1881 | outsym += add * osymesz; |
1882 | } |
1883 | |
1884 | esym += add * isymesz; |
1885 | isymp += add; |
1886 | ++secpp; |
1887 | ++indexp; |
1888 | for (--add; add > 0; --add) |
1889 | { |
1890 | *secpp++ = NULL((void*)0); |
1891 | *indexp++ = -1; |
1892 | } |
1893 | } |
1894 | |
1895 | /* Fix up the aux entries. This must be done in a separate pass, |
1896 | because we don't know the correct symbol indices until we have |
1897 | already decided which symbols we are going to keep. */ |
1898 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd)(((input_bfd)->tdata.coff_obj_data)->external_syms); |
1899 | esym_end = esym + obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count) * isymesz; |
1900 | isymp = finfo->internal_syms; |
1901 | indexp = finfo->sym_indices; |
1902 | sym_hash = obj_coff_sym_hashes (input_bfd)(((input_bfd)->tdata.coff_obj_data)->sym_hashes); |
1903 | outsym = finfo->outsyms; |
1904 | |
1905 | while (esym < esym_end) |
1906 | { |
1907 | int add; |
1908 | |
1909 | add = 1 + isymp->n_numaux; |
1910 | |
1911 | if ((*indexp < 0 |
1912 | || (bfd_size_type) *indexp < syment_base) |
1913 | && (*sym_hash == NULL((void*)0) |
1914 | || (*sym_hash)->auxbfd != input_bfd)) |
1915 | esym += add * isymesz; |
1916 | else |
1917 | { |
1918 | struct coff_link_hash_entry *h; |
1919 | int i; |
1920 | |
1921 | h = NULL((void*)0); |
1922 | if (*indexp < 0) |
1923 | { |
1924 | h = *sym_hash; |
1925 | |
1926 | /* The m68k-motorola-sysv assembler will sometimes |
1927 | generate two symbols with the same name, but only one |
1928 | will have aux entries. */ |
1929 | BFD_ASSERT (isymp->n_numaux == 0{ if (!(isymp->n_numaux == 0 || h->numaux == isymp-> n_numaux)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,1930); } |
1930 | || h->numaux == isymp->n_numaux){ if (!(isymp->n_numaux == 0 || h->numaux == isymp-> n_numaux)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,1930); }; |
1931 | } |
1932 | |
1933 | esym += isymesz; |
1934 | |
1935 | if (h == NULL((void*)0)) |
1936 | outsym += osymesz; |
1937 | |
1938 | /* Handle the aux entries. This handling is based on |
1939 | coff_pointerize_aux. I don't know if it always correct. */ |
1940 | for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) |
1941 | { |
1942 | union internal_auxent aux; |
1943 | union internal_auxent *auxp; |
1944 | |
1945 | if (h != NULL((void*)0)) |
1946 | auxp = h->aux + i; |
1947 | else |
1948 | { |
1949 | bfd_coff_swap_aux_in (input_bfd, esym, isymp->n_type,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,esym,isymp->n_type ,isymp->n_sclass,i,isymp->n_numaux,&aux)) |
1950 | isymp->n_sclass, i, isymp->n_numaux, &aux)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (input_bfd,esym,isymp->n_type ,isymp->n_sclass,i,isymp->n_numaux,&aux)); |
1951 | auxp = &aux; |
1952 | } |
1953 | |
1954 | if (isymp->n_sclass == C_FILE103) |
1955 | { |
1956 | /* If this is a long filename, we must put it in the |
1957 | string table. */ |
1958 | if (auxp->x_file.x_n.x_zeroes == 0 |
1959 | && auxp->x_file.x_n.x_offset != 0) |
1960 | { |
1961 | const char *filename; |
1962 | bfd_size_type indx; |
1963 | |
1964 | BFD_ASSERT (auxp->x_file.x_n.x_offset{ if (!(auxp->x_file.x_n.x_offset >= (4))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,1965); } |
1965 | >= STRING_SIZE_SIZE){ if (!(auxp->x_file.x_n.x_offset >= (4))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c" ,1965); }; |
1966 | if (strings == NULL((void*)0)) |
1967 | { |
1968 | strings = _bfd_coff_read_string_table (input_bfd); |
1969 | if (strings == NULL((void*)0)) |
1970 | return FALSE0; |
1971 | } |
1972 | filename = strings + auxp->x_file.x_n.x_offset; |
1973 | indx = _bfd_stringtab_add (finfo->strtab, filename, |
1974 | hash, copy); |
1975 | if (indx == (bfd_size_type) -1) |
1976 | return FALSE0; |
1977 | auxp->x_file.x_n.x_offset = STRING_SIZE_SIZE(4) + indx; |
1978 | } |
1979 | } |
1980 | else if (isymp->n_sclass != C_STAT3 || isymp->n_type != T_NULL0) |
1981 | { |
1982 | unsigned long indx; |
1983 | |
1984 | if (ISFCN (isymp->n_type)(((unsigned long) (isymp->n_type) & n_tmask) == ((unsigned long) (2) << n_btshft)) |
1985 | || ISTAG (isymp->n_sclass)((isymp->n_sclass) == 10 || (isymp->n_sclass) == 12 || ( isymp->n_sclass) == 15) |
1986 | || isymp->n_sclass == C_BLOCK100 |
1987 | || isymp->n_sclass == C_FCN101) |
1988 | { |
1989 | indx = auxp->x_sym.x_fcnary.x_fcn.x_endndx.l; |
1990 | if (indx > 0 |
1991 | && indx < obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count)) |
1992 | { |
1993 | /* We look forward through the symbol for |
1994 | the index of the next symbol we are going |
1995 | to include. I don't know if this is |
1996 | entirely right. */ |
1997 | while ((finfo->sym_indices[indx] < 0 |
1998 | || ((bfd_size_type) finfo->sym_indices[indx] |
1999 | < syment_base)) |
2000 | && indx < obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count)) |
2001 | ++indx; |
2002 | if (indx >= obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count)) |
2003 | indx = output_index; |
2004 | else |
2005 | indx = finfo->sym_indices[indx]; |
2006 | auxp->x_sym.x_fcnary.x_fcn.x_endndx.l = indx; |
2007 | } |
2008 | } |
2009 | |
2010 | indx = auxp->x_sym.x_tagndx.l; |
2011 | if (indx > 0 && indx < obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count)) |
2012 | { |
2013 | long symindx; |
2014 | |
2015 | symindx = finfo->sym_indices[indx]; |
2016 | if (symindx < 0) |
2017 | auxp->x_sym.x_tagndx.l = 0; |
2018 | else |
2019 | auxp->x_sym.x_tagndx.l = symindx; |
2020 | } |
2021 | |
2022 | /* The .bf symbols are supposed to be linked through |
2023 | the endndx field. We need to carry this list |
2024 | across object files. */ |
2025 | if (i == 0 |
2026 | && h == NULL((void*)0) |
2027 | && isymp->n_sclass == C_FCN101 |
2028 | && (isymp->_n._n_n._n_zeroes != 0 |
2029 | || isymp->_n._n_n._n_offset == 0) |
2030 | && isymp->_n._n_name[0] == '.' |
2031 | && isymp->_n._n_name[1] == 'b' |
2032 | && isymp->_n._n_name[2] == 'f' |
2033 | && isymp->_n._n_name[3] == '\0') |
2034 | { |
2035 | if (finfo->last_bf_index != -1) |
2036 | { |
2037 | finfo->last_bf.x_sym.x_fcnary.x_fcn.x_endndx.l = |
2038 | *indexp; |
2039 | |
2040 | if ((bfd_size_type) finfo->last_bf_index |
2041 | >= syment_base) |
2042 | { |
2043 | void *auxout; |
2044 | |
2045 | /* The last .bf symbol is in this input |
2046 | file. This will only happen if the |
2047 | assembler did not set up the .bf |
2048 | endndx symbols correctly. */ |
2049 | auxout = (finfo->outsyms |
2050 | + ((finfo->last_bf_index |
2051 | - syment_base) |
2052 | * osymesz)); |
2053 | |
2054 | bfd_coff_swap_aux_out (output_bfd,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,auxout )) |
2055 | &finfo->last_bf,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,auxout )) |
2056 | isymp->n_type,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,auxout )) |
2057 | isymp->n_sclass,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,auxout )) |
2058 | 0, isymp->n_numaux,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,auxout )) |
2059 | auxout)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,auxout )); |
2060 | } |
2061 | else |
2062 | { |
2063 | file_ptr pos; |
2064 | |
2065 | /* We have already written out the last |
2066 | .bf aux entry. We need to write it |
2067 | out again. We borrow *outsym |
2068 | temporarily. FIXME: This case should |
2069 | be made faster. */ |
2070 | bfd_coff_swap_aux_out (output_bfd,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,outsym )) |
2071 | &finfo->last_bf,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,outsym )) |
2072 | isymp->n_type,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,outsym )) |
2073 | isymp->n_sclass,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,outsym )) |
2074 | 0, isymp->n_numaux,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,outsym )) |
2075 | outsym)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&finfo->last_bf ,isymp->n_type,isymp->n_sclass,0,isymp->n_numaux,outsym )); |
2076 | pos = obj_sym_filepos (output_bfd)(((output_bfd)->tdata.coff_obj_data)->sym_filepos); |
2077 | pos += finfo->last_bf_index * osymesz; |
2078 | if (bfd_seek (output_bfd, pos, SEEK_SET0) != 0 |
2079 | || (bfd_bwrite (outsym, osymesz, output_bfd) |
2080 | != osymesz)) |
2081 | return FALSE0; |
2082 | } |
2083 | } |
2084 | |
2085 | if (auxp->x_sym.x_fcnary.x_fcn.x_endndx.l != 0) |
2086 | finfo->last_bf_index = -1; |
2087 | else |
2088 | { |
2089 | /* The endndx field of this aux entry must |
2090 | be updated with the symbol number of the |
2091 | next .bf symbol. */ |
2092 | finfo->last_bf = *auxp; |
2093 | finfo->last_bf_index = (((outsym - finfo->outsyms) |
2094 | / osymesz) |
2095 | + syment_base); |
2096 | } |
2097 | } |
2098 | } |
2099 | |
2100 | if (h == NULL((void*)0)) |
2101 | { |
2102 | bfd_coff_swap_aux_out (output_bfd, auxp, isymp->n_type,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,auxp,isymp->n_type ,isymp->n_sclass,i,isymp->n_numaux,outsym)) |
2103 | isymp->n_sclass, i, isymp->n_numaux,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,auxp,isymp->n_type ,isymp->n_sclass,i,isymp->n_numaux,outsym)) |
2104 | outsym)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,auxp,isymp->n_type ,isymp->n_sclass,i,isymp->n_numaux,outsym)); |
2105 | outsym += osymesz; |
2106 | } |
2107 | |
2108 | esym += isymesz; |
2109 | } |
2110 | } |
2111 | |
2112 | indexp += add; |
2113 | isymp += add; |
2114 | sym_hash += add; |
2115 | } |
2116 | |
2117 | /* Relocate the line numbers, unless we are stripping them. */ |
2118 | if (finfo->info->strip == strip_none |
2119 | || finfo->info->strip == strip_some) |
2120 | { |
2121 | for (o = input_bfd->sections; o != NULL((void*)0); o = o->next) |
2122 | { |
2123 | bfd_vma offset; |
2124 | bfd_byte *eline; |
2125 | bfd_byte *elineend; |
2126 | bfd_byte *oeline; |
2127 | bfd_boolean skipping; |
2128 | file_ptr pos; |
2129 | bfd_size_type amt; |
2130 | |
2131 | /* FIXME: If SEC_HAS_CONTENTS is not for the section, then |
2132 | build_link_order in ldwrite.c will not have created a |
2133 | link order, which means that we will not have seen this |
2134 | input section in _bfd_coff_final_link, which means that |
2135 | we will not have allocated space for the line numbers of |
2136 | this section. I don't think line numbers can be |
2137 | meaningful for a section which does not have |
2138 | SEC_HAS_CONTENTS set, but, if they do, this must be |
2139 | changed. */ |
2140 | if (o->lineno_count == 0 |
2141 | || (o->output_section->flags & SEC_HAS_CONTENTS0x200) == 0) |
2142 | continue; |
2143 | |
2144 | if (bfd_seek (input_bfd, o->line_filepos, SEEK_SET0) != 0 |
2145 | || bfd_bread (finfo->linenos, linesz * o->lineno_count, |
2146 | input_bfd) != linesz * o->lineno_count) |
2147 | return FALSE0; |
2148 | |
2149 | offset = o->output_section->vma + o->output_offset - o->vma; |
2150 | eline = finfo->linenos; |
2151 | oeline = finfo->linenos; |
2152 | elineend = eline + linesz * o->lineno_count; |
2153 | skipping = FALSE0; |
2154 | for (; eline < elineend; eline += linesz) |
2155 | { |
2156 | struct internal_lineno iline; |
2157 | |
2158 | bfd_coff_swap_lineno_in (input_bfd, eline, &iline)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_swap_lineno_in) (input_bfd,eline,&iline)); |
2159 | |
2160 | if (iline.l_lnno != 0) |
2161 | iline.l_addr.l_paddr += offset; |
2162 | else if (iline.l_addr.l_symndx >= 0 |
2163 | && ((unsigned long) iline.l_addr.l_symndx |
2164 | < obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count))) |
2165 | { |
2166 | long indx; |
2167 | |
2168 | indx = finfo->sym_indices[iline.l_addr.l_symndx]; |
2169 | |
2170 | if (indx < 0) |
2171 | { |
2172 | /* These line numbers are attached to a symbol |
2173 | which we are stripping. We must discard the |
2174 | line numbers because reading them back with |
2175 | no associated symbol (or associating them all |
2176 | with symbol #0) will fail. We can't regain |
2177 | the space in the output file, but at least |
2178 | they're dense. */ |
2179 | skipping = TRUE1; |
2180 | } |
2181 | else |
2182 | { |
2183 | struct internal_syment is; |
2184 | union internal_auxent ia; |
2185 | |
2186 | /* Fix up the lnnoptr field in the aux entry of |
2187 | the symbol. It turns out that we can't do |
2188 | this when we modify the symbol aux entries, |
2189 | because gas sometimes screws up the lnnoptr |
2190 | field and makes it an offset from the start |
2191 | of the line numbers rather than an absolute |
2192 | file index. */ |
2193 | bfd_coff_swap_sym_in (output_bfd,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (output_bfd,(finfo->outsyms + ((indx - syment_base) * osymesz)),&is)) |
2194 | (finfo->outsyms((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (output_bfd,(finfo->outsyms + ((indx - syment_base) * osymesz)),&is)) |
2195 | + ((indx - syment_base)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (output_bfd,(finfo->outsyms + ((indx - syment_base) * osymesz)),&is)) |
2196 | * osymesz)), &is)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (output_bfd,(finfo->outsyms + ((indx - syment_base) * osymesz)),&is)); |
2197 | if ((ISFCN (is.n_type)(((unsigned long) (is.n_type) & n_tmask) == ((unsigned long ) (2) << n_btshft)) |
2198 | || is.n_sclass == C_BLOCK100) |
2199 | && is.n_numaux >= 1) |
2200 | { |
2201 | void *auxptr; |
2202 | |
2203 | auxptr = (finfo->outsyms |
2204 | + ((indx - syment_base + 1) |
2205 | * osymesz)); |
2206 | bfd_coff_swap_aux_in (output_bfd, auxptr,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (output_bfd,auxptr,is.n_type,is. n_sclass,0,is.n_numaux,&ia)) |
2207 | is.n_type, is.n_sclass,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (output_bfd,auxptr,is.n_type,is. n_sclass,0,is.n_numaux,&ia)) |
2208 | 0, is.n_numaux, &ia)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (output_bfd,auxptr,is.n_type,is. n_sclass,0,is.n_numaux,&ia)); |
2209 | ia.x_sym.x_fcnary.x_fcn.x_lnnoptr = |
2210 | (o->output_section->line_filepos |
2211 | + o->output_section->lineno_count * linesz |
2212 | + eline - finfo->linenos); |
2213 | bfd_coff_swap_aux_out (output_bfd, &ia,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&ia,is.n_type,is .n_sclass,0,is.n_numaux,auxptr)) |
2214 | is.n_type, is.n_sclass, 0,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&ia,is.n_type,is .n_sclass,0,is.n_numaux,auxptr)) |
2215 | is.n_numaux, auxptr)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,&ia,is.n_type,is .n_sclass,0,is.n_numaux,auxptr)); |
2216 | } |
2217 | |
2218 | skipping = FALSE0; |
2219 | } |
2220 | |
2221 | iline.l_addr.l_symndx = indx; |
2222 | } |
2223 | |
2224 | if (!skipping) |
2225 | { |
2226 | bfd_coff_swap_lineno_out (output_bfd, &iline, oeline)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_lineno_out) (output_bfd, &iline, oeline )); |
2227 | oeline += linesz; |
2228 | } |
2229 | } |
2230 | |
2231 | pos = o->output_section->line_filepos; |
2232 | pos += o->output_section->lineno_count * linesz; |
2233 | amt = oeline - finfo->linenos; |
2234 | if (bfd_seek (output_bfd, pos, SEEK_SET0) != 0 |
2235 | || bfd_bwrite (finfo->linenos, amt, output_bfd) != amt) |
2236 | return FALSE0; |
2237 | |
2238 | o->output_section->lineno_count += amt / linesz; |
2239 | } |
2240 | } |
2241 | |
2242 | /* If we swapped out a C_FILE symbol, guess that the next C_FILE |
2243 | symbol will be the first symbol in the next input file. In the |
2244 | normal case, this will save us from writing out the C_FILE symbol |
2245 | again. */ |
2246 | if (finfo->last_file_index != -1 |
2247 | && (bfd_size_type) finfo->last_file_index >= syment_base) |
2248 | { |
2249 | finfo->last_file.n_value = output_index; |
2250 | bfd_coff_swap_sym_out (output_bfd, &finfo->last_file,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
2251 | (finfo->outsyms((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
2252 | + ((finfo->last_file_index - syment_base)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))) |
2253 | * osymesz)))((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &finfo->last_file , (finfo->outsyms + ((finfo->last_file_index - syment_base ) * osymesz)))); |
2254 | } |
2255 | |
2256 | /* Write the modified symbols to the output file. */ |
2257 | if (outsym > finfo->outsyms) |
2258 | { |
2259 | file_ptr pos; |
2260 | bfd_size_type amt; |
2261 | |
2262 | pos = obj_sym_filepos (output_bfd)(((output_bfd)->tdata.coff_obj_data)->sym_filepos) + syment_base * osymesz; |
2263 | amt = outsym - finfo->outsyms; |
2264 | if (bfd_seek (output_bfd, pos, SEEK_SET0) != 0 |
2265 | || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt) |
2266 | return FALSE0; |
2267 | |
2268 | BFD_ASSERT ((obj_raw_syment_count (output_bfd){ if (!(((((output_bfd)->tdata.coff_obj_data)->raw_syment_count ) + (outsym - finfo->outsyms) / osymesz) == output_index)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c",2270 ); } |
2269 | + (outsym - finfo->outsyms) / osymesz){ if (!(((((output_bfd)->tdata.coff_obj_data)->raw_syment_count ) + (outsym - finfo->outsyms) / osymesz) == output_index)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c",2270 ); } |
2270 | == output_index){ if (!(((((output_bfd)->tdata.coff_obj_data)->raw_syment_count ) + (outsym - finfo->outsyms) / osymesz) == output_index)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c",2270 ); }; |
2271 | |
2272 | obj_raw_syment_count (output_bfd)(((output_bfd)->tdata.coff_obj_data)->raw_syment_count) = output_index; |
2273 | } |
2274 | |
2275 | /* Relocate the contents of each section. */ |
2276 | adjust_symndx = coff_backend_info (input_bfd)((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_adjust_symndx; |
2277 | for (o = input_bfd->sections; o != NULL((void*)0); o = o->next) |
2278 | { |
2279 | bfd_byte *contents; |
2280 | struct coff_section_tdata *secdata; |
2281 | |
2282 | if (! o->linker_mark) |
2283 | /* This section was omitted from the link. */ |
2284 | continue; |
2285 | |
2286 | if ((o->flags & SEC_HAS_CONTENTS0x200) == 0 |
2287 | || (o->_raw_size == 0 && (o->flags & SEC_RELOC0x004) == 0)) |
2288 | { |
2289 | if ((o->flags & SEC_RELOC0x004) != 0 |
2290 | && o->reloc_count != 0) |
2291 | { |
2292 | ((*_bfd_error_handler) |
2293 | (_("%s: relocs in section `%s', but it has no contents")("%s: relocs in section `%s', but it has no contents"), |
2294 | bfd_archive_filename (input_bfd), |
2295 | bfd_get_section_name (input_bfd, o)((o)->name + 0))); |
2296 | bfd_set_error (bfd_error_no_contents); |
2297 | return FALSE0; |
2298 | } |
2299 | |
2300 | continue; |
2301 | } |
2302 | |
2303 | secdata = coff_section_data (input_bfd, o)((struct coff_section_tdata *) (o)->used_by_bfd); |
2304 | if (secdata != NULL((void*)0) && secdata->contents != NULL((void*)0)) |
2305 | contents = secdata->contents; |
2306 | else |
2307 | { |
2308 | if (! bfd_get_section_contents (input_bfd, o, finfo->contents, |
2309 | (file_ptr) 0, o->_raw_size)) |
2310 | return FALSE0; |
2311 | contents = finfo->contents; |
2312 | } |
2313 | |
2314 | if ((o->flags & SEC_RELOC0x004) != 0) |
2315 | { |
2316 | int target_index; |
2317 | struct internal_reloc *internal_relocs; |
2318 | struct internal_reloc *irel; |
2319 | |
2320 | /* Read in the relocs. */ |
2321 | target_index = o->output_section->target_index; |
2322 | internal_relocs = (_bfd_coff_read_internal_relocs |
2323 | (input_bfd, o, FALSE0, finfo->external_relocs, |
2324 | finfo->info->relocatable, |
2325 | (finfo->info->relocatable |
2326 | ? (finfo->section_info[target_index].relocs |
2327 | + o->output_section->reloc_count) |
2328 | : finfo->internal_relocs))); |
2329 | if (internal_relocs == NULL((void*)0)) |
2330 | return FALSE0; |
2331 | |
2332 | /* Call processor specific code to relocate the section |
2333 | contents. */ |
2334 | if (! bfd_coff_relocate_section (output_bfd, finfo->info,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_relocate_section) (output_bfd, finfo->info , input_bfd, o, contents, internal_relocs, finfo->internal_syms , finfo->sec_ptrs)) |
2335 | input_bfd, o,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_relocate_section) (output_bfd, finfo->info , input_bfd, o, contents, internal_relocs, finfo->internal_syms , finfo->sec_ptrs)) |
2336 | contents,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_relocate_section) (output_bfd, finfo->info , input_bfd, o, contents, internal_relocs, finfo->internal_syms , finfo->sec_ptrs)) |
2337 | internal_relocs,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_relocate_section) (output_bfd, finfo->info , input_bfd, o, contents, internal_relocs, finfo->internal_syms , finfo->sec_ptrs)) |
2338 | finfo->internal_syms,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_relocate_section) (output_bfd, finfo->info , input_bfd, o, contents, internal_relocs, finfo->internal_syms , finfo->sec_ptrs)) |
2339 | finfo->sec_ptrs)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_relocate_section) (output_bfd, finfo->info , input_bfd, o, contents, internal_relocs, finfo->internal_syms , finfo->sec_ptrs))) |
2340 | return FALSE0; |
2341 | |
2342 | if (finfo->info->relocatable) |
2343 | { |
2344 | bfd_vma offset; |
2345 | struct internal_reloc *irelend; |
2346 | struct coff_link_hash_entry **rel_hash; |
2347 | |
2348 | offset = o->output_section->vma + o->output_offset - o->vma; |
2349 | irel = internal_relocs; |
2350 | irelend = irel + o->reloc_count; |
2351 | rel_hash = (finfo->section_info[target_index].rel_hashes |
2352 | + o->output_section->reloc_count); |
2353 | for (; irel < irelend; irel++, rel_hash++) |
2354 | { |
2355 | struct coff_link_hash_entry *h; |
2356 | bfd_boolean adjusted; |
2357 | |
2358 | *rel_hash = NULL((void*)0); |
2359 | |
2360 | /* Adjust the reloc address and symbol index. */ |
2361 | irel->r_vaddr += offset; |
2362 | |
2363 | if (irel->r_symndx == -1) |
2364 | continue; |
2365 | |
2366 | if (adjust_symndx) |
2367 | { |
2368 | if (! (*adjust_symndx) (output_bfd, finfo->info, |
2369 | input_bfd, o, irel, |
2370 | &adjusted)) |
2371 | return FALSE0; |
2372 | if (adjusted) |
2373 | continue; |
2374 | } |
2375 | |
2376 | h = obj_coff_sym_hashes (input_bfd)(((input_bfd)->tdata.coff_obj_data)->sym_hashes)[irel->r_symndx]; |
2377 | if (h != NULL((void*)0)) |
2378 | { |
2379 | /* This is a global symbol. */ |
2380 | if (h->indx >= 0) |
2381 | irel->r_symndx = h->indx; |
2382 | else |
2383 | { |
2384 | /* This symbol is being written at the end |
2385 | of the file, and we do not yet know the |
2386 | symbol index. We save the pointer to the |
2387 | hash table entry in the rel_hash list. |
2388 | We set the indx field to -2 to indicate |
2389 | that this symbol must not be stripped. */ |
2390 | *rel_hash = h; |
2391 | h->indx = -2; |
2392 | } |
2393 | } |
2394 | else |
2395 | { |
2396 | long indx; |
2397 | |
2398 | indx = finfo->sym_indices[irel->r_symndx]; |
2399 | if (indx != -1) |
2400 | irel->r_symndx = indx; |
2401 | else |
2402 | { |
2403 | struct internal_syment *is; |
2404 | const char *name; |
2405 | char buf[SYMNMLEN8 + 1]; |
2406 | |
2407 | /* This reloc is against a symbol we are |
2408 | stripping. This should have been handled |
2409 | by the 'dont_skip_symbol' code in the while |
2410 | loop at the top of this function. */ |
2411 | is = finfo->internal_syms + irel->r_symndx; |
2412 | |
2413 | name = (_bfd_coff_internal_syment_name |
2414 | (input_bfd, is, buf)); |
2415 | if (name == NULL((void*)0)) |
2416 | return FALSE0; |
2417 | |
2418 | if (! ((*finfo->info->callbacks->unattached_reloc) |
2419 | (finfo->info, name, input_bfd, o, |
2420 | irel->r_vaddr))) |
2421 | return FALSE0; |
2422 | } |
2423 | } |
2424 | } |
2425 | |
2426 | o->output_section->reloc_count += o->reloc_count; |
2427 | } |
2428 | } |
2429 | |
2430 | /* Write out the modified section contents. */ |
2431 | if (secdata == NULL((void*)0) || secdata->stab_info == NULL((void*)0)) |
2432 | { |
2433 | file_ptr loc = o->output_offset * bfd_octets_per_byte (output_bfd); |
2434 | bfd_size_type amt = (o->_cooked_size != 0 |
2435 | ? o->_cooked_size : o->_raw_size); |
2436 | if (! bfd_set_section_contents (output_bfd, o->output_section, |
2437 | contents, loc, amt)) |
2438 | return FALSE0; |
2439 | } |
2440 | else |
2441 | { |
2442 | if (! (_bfd_write_section_stabs |
2443 | (output_bfd, &coff_hash_table (finfo->info)((struct coff_link_hash_table *) ((finfo->info)->hash))->stab_info, |
2444 | o, &secdata->stab_info, contents))) |
2445 | return FALSE0; |
2446 | } |
2447 | } |
2448 | |
2449 | if (! finfo->info->keep_memory |
2450 | && ! _bfd_coff_free_symbols (input_bfd)) |
2451 | return FALSE0; |
2452 | |
2453 | return TRUE1; |
2454 | } |
2455 | |
2456 | /* Write out a global symbol. Called via coff_link_hash_traverse. */ |
2457 | |
2458 | bfd_boolean |
2459 | _bfd_coff_write_global_sym (struct coff_link_hash_entry *h, void *data) |
2460 | { |
2461 | struct coff_final_link_info *finfo = (struct coff_final_link_info *) data; |
2462 | bfd *output_bfd; |
2463 | struct internal_syment isym; |
2464 | bfd_size_type symesz; |
2465 | unsigned int i; |
2466 | file_ptr pos; |
2467 | |
2468 | output_bfd = finfo->output_bfd; |
2469 | |
2470 | if (h->root.type == bfd_link_hash_warning) |
2471 | { |
2472 | h = (struct coff_link_hash_entry *) h->root.u.i.link; |
2473 | if (h->root.type == bfd_link_hash_new) |
2474 | return TRUE1; |
2475 | } |
2476 | |
2477 | if (h->indx >= 0) |
2478 | return TRUE1; |
2479 | |
2480 | if (h->indx != -2 |
2481 | && (finfo->info->strip == strip_all |
2482 | || (finfo->info->strip == strip_some |
2483 | && (bfd_hash_lookup (finfo->info->keep_hash, |
2484 | h->root.root.string, FALSE0, FALSE0) |
2485 | == NULL((void*)0))))) |
2486 | return TRUE1; |
2487 | |
2488 | switch (h->root.type) |
2489 | { |
2490 | default: |
2491 | case bfd_link_hash_new: |
2492 | case bfd_link_hash_warning: |
2493 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c", 2493 , __PRETTY_FUNCTION__); |
2494 | return FALSE0; |
2495 | |
2496 | case bfd_link_hash_undefined: |
2497 | case bfd_link_hash_undefweak: |
2498 | isym.n_scnum = N_UNDEF((short)0); |
2499 | isym.n_value = 0; |
2500 | break; |
2501 | |
2502 | case bfd_link_hash_defined: |
2503 | case bfd_link_hash_defweak: |
2504 | { |
2505 | asection *sec; |
2506 | |
2507 | sec = h->root.u.def.section->output_section; |
2508 | if (bfd_is_abs_section (sec)((sec) == ((asection *) &bfd_abs_section))) |
2509 | isym.n_scnum = N_ABS((short)-1); |
2510 | else |
2511 | isym.n_scnum = sec->target_index; |
2512 | isym.n_value = (h->root.u.def.value |
2513 | + h->root.u.def.section->output_offset); |
2514 | if (! obj_pe (finfo->output_bfd)(((finfo->output_bfd)->tdata.coff_obj_data)->pe)) |
2515 | isym.n_value += sec->vma; |
2516 | } |
2517 | break; |
2518 | |
2519 | case bfd_link_hash_common: |
2520 | isym.n_scnum = N_UNDEF((short)0); |
2521 | isym.n_value = h->root.u.c.size; |
2522 | break; |
2523 | |
2524 | case bfd_link_hash_indirect: |
2525 | /* Just ignore these. They can't be handled anyhow. */ |
2526 | return TRUE1; |
2527 | } |
2528 | |
2529 | if (strlen (h->root.root.string) <= SYMNMLEN8) |
2530 | strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN8); |
2531 | else |
2532 | { |
2533 | bfd_boolean hash; |
2534 | bfd_size_type indx; |
2535 | |
2536 | hash = TRUE1; |
2537 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT0x400) != 0) |
2538 | hash = FALSE0; |
2539 | indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, hash, |
2540 | FALSE0); |
2541 | if (indx == (bfd_size_type) -1) |
2542 | { |
2543 | finfo->failed = TRUE1; |
2544 | return FALSE0; |
2545 | } |
2546 | isym._n._n_n._n_zeroes = 0; |
2547 | isym._n._n_n._n_offset = STRING_SIZE_SIZE(4) + indx; |
2548 | } |
2549 | |
2550 | isym.n_sclass = h->class; |
2551 | isym.n_type = h->type; |
2552 | |
2553 | if (isym.n_sclass == C_NULL0) |
2554 | isym.n_sclass = C_EXT2; |
2555 | |
2556 | /* If doing task linking and this is the pass where we convert |
2557 | defined globals to statics, then do that conversion now. If the |
2558 | symbol is not being converted, just ignore it and it will be |
2559 | output during a later pass. */ |
2560 | if (finfo->global_to_static) |
2561 | { |
2562 | if (! IS_EXTERNAL (output_bfd, isym)((isym).n_sclass == 2 || ((isym).n_sclass == 127 || ((((output_bfd )->tdata.coff_obj_data)->pe) && (isym).n_sclass == 105)))) |
2563 | return TRUE1; |
2564 | |
2565 | isym.n_sclass = C_STAT3; |
2566 | } |
2567 | |
2568 | /* When a weak symbol is not overridden by a strong one, |
2569 | turn it into an external symbol when not building a |
2570 | shared or relocatable object. */ |
2571 | if (! finfo->info->shared |
2572 | && ! finfo->info->relocatable |
2573 | && IS_WEAK_EXTERNAL (finfo->output_bfd, isym)((isym).n_sclass == 127 || ((((finfo->output_bfd)->tdata .coff_obj_data)->pe) && (isym).n_sclass == 105))) |
2574 | isym.n_sclass = C_EXT2; |
2575 | |
2576 | isym.n_numaux = h->numaux; |
2577 | |
2578 | bfd_coff_swap_sym_out (output_bfd, &isym, finfo->outsyms)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_out) (output_bfd, &isym, finfo-> outsyms)); |
2579 | |
2580 | symesz = bfd_coff_symesz (output_bfd)(((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_symesz); |
2581 | |
2582 | pos = obj_sym_filepos (output_bfd)(((output_bfd)->tdata.coff_obj_data)->sym_filepos); |
2583 | pos += obj_raw_syment_count (output_bfd)(((output_bfd)->tdata.coff_obj_data)->raw_syment_count) * symesz; |
2584 | if (bfd_seek (output_bfd, pos, SEEK_SET0) != 0 |
2585 | || bfd_bwrite (finfo->outsyms, symesz, output_bfd) != symesz) |
2586 | { |
2587 | finfo->failed = TRUE1; |
2588 | return FALSE0; |
2589 | } |
2590 | |
2591 | h->indx = obj_raw_syment_count (output_bfd)(((output_bfd)->tdata.coff_obj_data)->raw_syment_count); |
2592 | |
2593 | ++obj_raw_syment_count (output_bfd)(((output_bfd)->tdata.coff_obj_data)->raw_syment_count); |
2594 | |
2595 | /* Write out any associated aux entries. Most of the aux entries |
2596 | will have been modified in _bfd_coff_link_input_bfd. We have to |
2597 | handle section aux entries here, now that we have the final |
2598 | relocation and line number counts. */ |
2599 | for (i = 0; i < isym.n_numaux; i++) |
2600 | { |
2601 | union internal_auxent *auxp; |
2602 | |
2603 | auxp = h->aux + i; |
2604 | |
2605 | /* Look for a section aux entry here using the same tests that |
2606 | coff_swap_aux_out uses. */ |
2607 | if (i == 0 |
2608 | && (isym.n_sclass == C_STAT3 |
2609 | || isym.n_sclass == C_HIDDEN106) |
2610 | && isym.n_type == T_NULL0 |
2611 | && (h->root.type == bfd_link_hash_defined |
2612 | || h->root.type == bfd_link_hash_defweak)) |
2613 | { |
2614 | asection *sec; |
2615 | |
2616 | sec = h->root.u.def.section->output_section; |
2617 | if (sec != NULL((void*)0)) |
2618 | { |
2619 | auxp->x_scn.x_scnlen = (sec->_cooked_size != 0 |
2620 | ? sec->_cooked_size |
2621 | : sec->_raw_size); |
2622 | |
2623 | /* For PE, an overflow on the final link reportedly does |
2624 | not matter. FIXME: Why not? */ |
2625 | if (sec->reloc_count > 0xffff |
2626 | && (! obj_pe (output_bfd)(((output_bfd)->tdata.coff_obj_data)->pe) |
2627 | || finfo->info->relocatable)) |
2628 | (*_bfd_error_handler) |
2629 | (_("%s: %s: reloc overflow: 0x%lx > 0xffff")("%s: %s: reloc overflow: 0x%lx > 0xffff"), |
2630 | bfd_get_filename (output_bfd)((char *) (output_bfd)->filename), |
2631 | bfd_get_section_name (output_bfd, sec)((sec)->name + 0), |
2632 | sec->reloc_count); |
2633 | |
2634 | if (sec->lineno_count > 0xffff |
2635 | && (! obj_pe (output_bfd)(((output_bfd)->tdata.coff_obj_data)->pe) |
2636 | || finfo->info->relocatable)) |
2637 | (*_bfd_error_handler) |
2638 | (_("%s: warning: %s: line number overflow: 0x%lx > 0xffff")("%s: warning: %s: line number overflow: 0x%lx > 0xffff"), |
2639 | bfd_get_filename (output_bfd)((char *) (output_bfd)->filename), |
2640 | bfd_get_section_name (output_bfd, sec)((sec)->name + 0), |
2641 | sec->lineno_count); |
2642 | |
2643 | auxp->x_scn.x_nreloc = sec->reloc_count; |
2644 | auxp->x_scn.x_nlinno = sec->lineno_count; |
2645 | auxp->x_scn.x_checksum = 0; |
2646 | auxp->x_scn.x_associated = 0; |
2647 | auxp->x_scn.x_comdat = 0; |
2648 | } |
2649 | } |
2650 | |
2651 | bfd_coff_swap_aux_out (output_bfd, auxp, isym.n_type,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,auxp,isym.n_type,isym .n_sclass,(int) i,isym.n_numaux,finfo->outsyms)) |
2652 | isym.n_sclass, (int) i, isym.n_numaux,((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,auxp,isym.n_type,isym .n_sclass,(int) i,isym.n_numaux,finfo->outsyms)) |
2653 | finfo->outsyms)((((bfd_coff_backend_data *) (output_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_out) (output_bfd,auxp,isym.n_type,isym .n_sclass,(int) i,isym.n_numaux,finfo->outsyms)); |
2654 | if (bfd_bwrite (finfo->outsyms, symesz, output_bfd) != symesz) |
2655 | { |
2656 | finfo->failed = TRUE1; |
2657 | return FALSE0; |
2658 | } |
2659 | ++obj_raw_syment_count (output_bfd)(((output_bfd)->tdata.coff_obj_data)->raw_syment_count); |
2660 | } |
2661 | |
2662 | return TRUE1; |
2663 | } |
2664 | |
2665 | /* Write out task global symbols, converting them to statics. Called |
2666 | via coff_link_hash_traverse. Calls bfd_coff_write_global_sym to do |
2667 | the dirty work, if the symbol we are processing needs conversion. */ |
2668 | |
2669 | bfd_boolean |
2670 | _bfd_coff_write_task_globals (struct coff_link_hash_entry *h, void *data) |
2671 | { |
2672 | struct coff_final_link_info *finfo = (struct coff_final_link_info *) data; |
2673 | bfd_boolean rtnval = TRUE1; |
2674 | bfd_boolean save_global_to_static; |
2675 | |
2676 | if (h->root.type == bfd_link_hash_warning) |
2677 | h = (struct coff_link_hash_entry *) h->root.u.i.link; |
2678 | |
2679 | if (h->indx < 0) |
2680 | { |
2681 | switch (h->root.type) |
2682 | { |
2683 | case bfd_link_hash_defined: |
2684 | case bfd_link_hash_defweak: |
2685 | save_global_to_static = finfo->global_to_static; |
2686 | finfo->global_to_static = TRUE1; |
2687 | rtnval = _bfd_coff_write_global_sym (h, data); |
2688 | finfo->global_to_static = save_global_to_static; |
2689 | break; |
2690 | default: |
2691 | break; |
2692 | } |
2693 | } |
2694 | return (rtnval); |
2695 | } |
2696 | |
2697 | /* Handle a link order which is supposed to generate a reloc. */ |
2698 | |
2699 | bfd_boolean |
2700 | _bfd_coff_reloc_link_order (bfd *output_bfd, |
2701 | struct coff_final_link_info *finfo, |
2702 | asection *output_section, |
2703 | struct bfd_link_order *link_order) |
2704 | { |
2705 | reloc_howto_type *howto; |
2706 | struct internal_reloc *irel; |
2707 | struct coff_link_hash_entry **rel_hash_ptr; |
2708 | |
2709 | howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); |
2710 | if (howto == NULL((void*)0)) |
2711 | { |
2712 | bfd_set_error (bfd_error_bad_value); |
2713 | return FALSE0; |
2714 | } |
2715 | |
2716 | if (link_order->u.reloc.p->addend != 0) |
2717 | { |
2718 | bfd_size_type size; |
2719 | bfd_byte *buf; |
2720 | bfd_reloc_status_type rstat; |
2721 | bfd_boolean ok; |
2722 | file_ptr loc; |
2723 | |
2724 | size = bfd_get_reloc_size (howto); |
2725 | buf = bfd_zmalloc (size); |
2726 | if (buf == NULL((void*)0)) |
2727 | return FALSE0; |
2728 | |
2729 | rstat = _bfd_relocate_contents (howto, output_bfd, |
2730 | (bfd_vma) link_order->u.reloc.p->addend,\ |
2731 | buf); |
2732 | switch (rstat) |
2733 | { |
2734 | case bfd_reloc_ok: |
2735 | break; |
2736 | default: |
2737 | case bfd_reloc_outofrange: |
2738 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c", 2738 , __PRETTY_FUNCTION__); |
2739 | case bfd_reloc_overflow: |
2740 | if (! ((*finfo->info->callbacks->reloc_overflow) |
2741 | (finfo->info, |
2742 | (link_order->type == bfd_section_reloc_link_order |
2743 | ? bfd_section_name (output_bfd,((link_order->u.reloc.p->u.section)->name) |
2744 | link_order->u.reloc.p->u.section)((link_order->u.reloc.p->u.section)->name) |
2745 | : link_order->u.reloc.p->u.name), |
2746 | howto->name, link_order->u.reloc.p->addend, |
2747 | (bfd *) NULL((void*)0), (asection *) NULL((void*)0), (bfd_vma) 0))) |
2748 | { |
2749 | free (buf); |
2750 | return FALSE0; |
2751 | } |
2752 | break; |
2753 | } |
2754 | loc = link_order->offset * bfd_octets_per_byte (output_bfd); |
2755 | ok = bfd_set_section_contents (output_bfd, output_section, buf, |
2756 | loc, size); |
2757 | free (buf); |
2758 | if (! ok) |
2759 | return FALSE0; |
2760 | } |
2761 | |
2762 | /* Store the reloc information in the right place. It will get |
2763 | swapped and written out at the end of the final_link routine. */ |
2764 | irel = (finfo->section_info[output_section->target_index].relocs |
2765 | + output_section->reloc_count); |
2766 | rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes |
2767 | + output_section->reloc_count); |
2768 | |
2769 | memset (irel, 0, sizeof (struct internal_reloc)); |
2770 | *rel_hash_ptr = NULL((void*)0); |
2771 | |
2772 | irel->r_vaddr = output_section->vma + link_order->offset; |
2773 | |
2774 | if (link_order->type == bfd_section_reloc_link_order) |
2775 | { |
2776 | /* We need to somehow locate a symbol in the right section. The |
2777 | symbol must either have a value of zero, or we must adjust |
2778 | the addend by the value of the symbol. FIXME: Write this |
2779 | when we need it. The old linker couldn't handle this anyhow. */ |
2780 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c", 2780 , __PRETTY_FUNCTION__); |
2781 | *rel_hash_ptr = NULL((void*)0); |
2782 | irel->r_symndx = 0; |
2783 | } |
2784 | else |
2785 | { |
2786 | struct coff_link_hash_entry *h; |
2787 | |
2788 | h = ((struct coff_link_hash_entry *) |
2789 | bfd_wrapped_link_hash_lookup (output_bfd, finfo->info, |
2790 | link_order->u.reloc.p->u.name, |
2791 | FALSE0, FALSE0, TRUE1)); |
2792 | if (h != NULL((void*)0)) |
2793 | { |
2794 | if (h->indx >= 0) |
2795 | irel->r_symndx = h->indx; |
2796 | else |
2797 | { |
2798 | /* Set the index to -2 to force this symbol to get |
2799 | written out. */ |
2800 | h->indx = -2; |
2801 | *rel_hash_ptr = h; |
2802 | irel->r_symndx = 0; |
2803 | } |
2804 | } |
2805 | else |
2806 | { |
2807 | if (! ((*finfo->info->callbacks->unattached_reloc) |
2808 | (finfo->info, link_order->u.reloc.p->u.name, (bfd *) NULL((void*)0), |
2809 | (asection *) NULL((void*)0), (bfd_vma) 0))) |
2810 | return FALSE0; |
2811 | irel->r_symndx = 0; |
2812 | } |
2813 | } |
2814 | |
2815 | /* FIXME: Is this always right? */ |
2816 | irel->r_type = howto->type; |
2817 | |
2818 | /* r_size is only used on the RS/6000, which needs its own linker |
2819 | routines anyhow. r_extern is only used for ECOFF. */ |
2820 | |
2821 | /* FIXME: What is the right value for r_offset? Is zero OK? */ |
2822 | ++output_section->reloc_count; |
2823 | |
2824 | return TRUE1; |
2825 | } |
2826 | |
2827 | /* A basic reloc handling routine which may be used by processors with |
2828 | simple relocs. */ |
2829 | |
2830 | bfd_boolean |
2831 | _bfd_coff_generic_relocate_section (bfd *output_bfd, |
2832 | struct bfd_link_info *info, |
2833 | bfd *input_bfd, |
2834 | asection *input_section, |
2835 | bfd_byte *contents, |
2836 | struct internal_reloc *relocs, |
2837 | struct internal_syment *syms, |
2838 | asection **sections) |
2839 | { |
2840 | struct internal_reloc *rel; |
2841 | struct internal_reloc *relend; |
2842 | |
2843 | rel = relocs; |
2844 | relend = rel + input_section->reloc_count; |
2845 | for (; rel < relend; rel++) |
2846 | { |
2847 | long symndx; |
2848 | struct coff_link_hash_entry *h; |
2849 | struct internal_syment *sym; |
2850 | bfd_vma addend; |
2851 | bfd_vma val; |
2852 | reloc_howto_type *howto; |
2853 | bfd_reloc_status_type rstat; |
2854 | |
2855 | symndx = rel->r_symndx; |
2856 | |
2857 | if (symndx == -1) |
2858 | { |
2859 | h = NULL((void*)0); |
2860 | sym = NULL((void*)0); |
2861 | } |
2862 | else if (symndx < 0 |
2863 | || (unsigned long) symndx >= obj_raw_syment_count (input_bfd)(((input_bfd)->tdata.coff_obj_data)->raw_syment_count)) |
2864 | { |
2865 | (*_bfd_error_handler) |
2866 | ("%s: illegal symbol index %ld in relocs", |
2867 | bfd_archive_filename (input_bfd), symndx); |
2868 | return FALSE0; |
2869 | } |
2870 | else |
2871 | { |
2872 | h = obj_coff_sym_hashes (input_bfd)(((input_bfd)->tdata.coff_obj_data)->sym_hashes)[symndx]; |
2873 | sym = syms + symndx; |
2874 | } |
2875 | |
2876 | /* COFF treats common symbols in one of two ways. Either the |
2877 | size of the symbol is included in the section contents, or it |
2878 | is not. We assume that the size is not included, and force |
2879 | the rtype_to_howto function to adjust the addend as needed. */ |
2880 | if (sym != NULL((void*)0) && sym->n_scnum != 0) |
2881 | addend = - sym->n_value; |
2882 | else |
2883 | addend = 0; |
2884 | |
2885 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_rtype_to_howto) (input_bfd, input_section, rel , h, sym, &addend)) |
2886 | sym, &addend)((((bfd_coff_backend_data *) (input_bfd)->xvec->backend_data )->_bfd_coff_rtype_to_howto) (input_bfd, input_section, rel , h, sym, &addend)); |
2887 | if (howto == NULL((void*)0)) |
2888 | return FALSE0; |
2889 | |
2890 | /* If we are doing a relocatable link, then we can just ignore |
2891 | a PC relative reloc that is pcrel_offset. It will already |
2892 | have the correct value. If this is not a relocatable link, |
2893 | then we should ignore the symbol value. */ |
2894 | if (howto->pc_relative && howto->pcrel_offset) |
2895 | { |
2896 | if (info->relocatable) |
2897 | continue; |
2898 | if (sym != NULL((void*)0) && sym->n_scnum != 0) |
2899 | addend += sym->n_value; |
2900 | } |
2901 | |
2902 | val = 0; |
2903 | |
2904 | if (h == NULL((void*)0)) |
2905 | { |
2906 | asection *sec; |
2907 | |
2908 | if (symndx == -1) |
2909 | { |
2910 | sec = bfd_abs_section_ptr((asection *) &bfd_abs_section); |
2911 | val = 0; |
2912 | } |
2913 | else |
2914 | { |
2915 | sec = sections[symndx]; |
2916 | val = (sec->output_section->vma |
2917 | + sec->output_offset |
2918 | + sym->n_value); |
2919 | if (! obj_pe (input_bfd)(((input_bfd)->tdata.coff_obj_data)->pe)) |
2920 | val -= sec->vma; |
2921 | } |
2922 | } |
2923 | else |
2924 | { |
2925 | if (h->root.type == bfd_link_hash_defined |
2926 | || h->root.type == bfd_link_hash_defweak) |
2927 | { |
2928 | asection *sec; |
2929 | |
2930 | sec = h->root.u.def.section; |
2931 | val = (h->root.u.def.value |
2932 | + sec->output_section->vma |
2933 | + sec->output_offset); |
2934 | } |
2935 | |
2936 | else if (h->root.type == bfd_link_hash_undefweak) |
2937 | val = 0; |
2938 | |
2939 | else if (! info->relocatable) |
2940 | { |
2941 | if (! ((*info->callbacks->undefined_symbol) |
2942 | (info, h->root.root.string, input_bfd, input_section, |
2943 | rel->r_vaddr - input_section->vma, TRUE1))) |
2944 | return FALSE0; |
2945 | } |
2946 | } |
2947 | |
2948 | if (info->base_file) |
2949 | { |
2950 | /* Emit a reloc if the backend thinks it needs it. */ |
2951 | if (sym && pe_data (output_bfd)((output_bfd)->tdata.pe_obj_data)->in_reloc_p (output_bfd, howto)) |
2952 | { |
2953 | /* Relocation to a symbol in a section which isn't |
2954 | absolute. We output the address here to a file. |
2955 | This file is then read by dlltool when generating the |
2956 | reloc section. Note that the base file is not |
2957 | portable between systems. We write out a long here, |
2958 | and dlltool reads in a long. */ |
2959 | long addr = (rel->r_vaddr |
2960 | - input_section->vma |
2961 | + input_section->output_offset |
2962 | + input_section->output_section->vma); |
2963 | if (coff_data (output_bfd)((output_bfd)->tdata.coff_obj_data)->pe) |
2964 | addr -= pe_data(output_bfd)((output_bfd)->tdata.pe_obj_data)->pe_opthdr.ImageBase; |
2965 | if (fwrite (&addr, 1, sizeof (long), (FILE *) info->base_file) |
2966 | != sizeof (long)) |
2967 | { |
2968 | bfd_set_error (bfd_error_system_call); |
2969 | return FALSE0; |
2970 | } |
2971 | } |
2972 | } |
2973 | |
2974 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, |
2975 | contents, |
2976 | rel->r_vaddr - input_section->vma, |
2977 | val, addend); |
2978 | |
2979 | switch (rstat) |
2980 | { |
2981 | default: |
2982 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/cofflink.c", 2982 , __PRETTY_FUNCTION__); |
2983 | case bfd_reloc_ok: |
2984 | break; |
2985 | case bfd_reloc_outofrange: |
2986 | (*_bfd_error_handler) |
2987 | (_("%s: bad reloc address 0x%lx in section `%s'")("%s: bad reloc address 0x%lx in section `%s'"), |
2988 | bfd_archive_filename (input_bfd), |
2989 | (unsigned long) rel->r_vaddr, |
2990 | bfd_get_section_name (input_bfd, input_section)((input_section)->name + 0)); |
2991 | return FALSE0; |
2992 | case bfd_reloc_overflow: |
2993 | { |
2994 | const char *name; |
2995 | char buf[SYMNMLEN8 + 1]; |
2996 | |
2997 | if (symndx == -1) |
2998 | name = "*ABS*"; |
2999 | else if (h != NULL((void*)0)) |
3000 | name = h->root.root.string; |
3001 | else |
3002 | { |
3003 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); |
3004 | if (name == NULL((void*)0)) |
3005 | return FALSE0; |
3006 | } |
3007 | |
3008 | if (! ((*info->callbacks->reloc_overflow) |
3009 | (info, name, howto->name, (bfd_vma) 0, input_bfd, |
3010 | input_section, rel->r_vaddr - input_section->vma))) |
3011 | return FALSE0; |
3012 | } |
3013 | } |
3014 | } |
3015 | return TRUE1; |
3016 | } |