File: | src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c |
Warning: | line 193, column 21 Access to field 'offset' results in a dereference of a null pointer (loaded from variable 'link_order') |
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1 | /* ldwrite.c -- write out the linked file | |||
2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2002, | |||
3 | 2003, 2004, 2005 Free Software Foundation, Inc. | |||
4 | Written by Steve Chamberlain sac@cygnus.com | |||
5 | ||||
6 | This file is part of GLD, the Gnu Linker. | |||
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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |||
21 | ||||
22 | #include "bfd.h" | |||
23 | #include "sysdep.h" | |||
24 | #include "bfdlink.h" | |||
25 | #include "libiberty.h" | |||
26 | #include "safe-ctype.h" | |||
27 | ||||
28 | #include "ld.h" | |||
29 | #include "ldexp.h" | |||
30 | #include "ldlang.h" | |||
31 | #include "ldwrite.h" | |||
32 | #include "ldmisc.h" | |||
33 | #include <ldgram.h> | |||
34 | #include "ldmain.h" | |||
35 | ||||
36 | /* Build link_order structures for the BFD linker. */ | |||
37 | ||||
38 | static void | |||
39 | build_link_order (lang_statement_union_type *statement) | |||
40 | { | |||
41 | switch (statement->header.type) | |||
| ||||
42 | { | |||
43 | case lang_data_statement_enum: | |||
44 | { | |||
45 | asection *output_section; | |||
46 | struct bfd_link_order *link_order; | |||
47 | bfd_vma value; | |||
48 | bfd_boolean big_endian = FALSE0; | |||
49 | ||||
50 | output_section = statement->data_statement.output_section; | |||
51 | ASSERT (output_section->owner == output_bfd)do { if (!(output_section->owner == output_bfd)) info_assert ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c",51); } while (0); | |||
52 | ||||
53 | link_order = bfd_new_link_order (output_bfd, output_section); | |||
54 | if (link_order == NULL((void*)0)) | |||
55 | einfo (_("%P%F: bfd_new_link_order failed\n")("%P%F: bfd_new_link_order failed\n")); | |||
56 | ||||
57 | link_order->type = bfd_data_link_order; | |||
58 | link_order->offset = statement->data_statement.output_offset; | |||
59 | link_order->u.data.contents = xmalloc (QUAD_SIZE(8)); | |||
60 | ||||
61 | value = statement->data_statement.value; | |||
62 | ||||
63 | /* If the endianness of the output BFD is not known, then we | |||
64 | base the endianness of the data on the first input file. | |||
65 | By convention, the bfd_put routines for an unknown | |||
66 | endianness are big endian, so we must swap here if the | |||
67 | input file is little endian. */ | |||
68 | if (bfd_big_endian (output_bfd)((output_bfd)->xvec->byteorder == BFD_ENDIAN_BIG)) | |||
69 | big_endian = TRUE1; | |||
70 | else if (bfd_little_endian (output_bfd)((output_bfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)) | |||
71 | big_endian = FALSE0; | |||
72 | else | |||
73 | { | |||
74 | bfd_boolean swap; | |||
75 | ||||
76 | swap = FALSE0; | |||
77 | if (command_line.endian == ENDIAN_BIG) | |||
78 | big_endian = TRUE1; | |||
79 | else if (command_line.endian == ENDIAN_LITTLE) | |||
80 | { | |||
81 | big_endian = FALSE0; | |||
82 | swap = TRUE1; | |||
83 | } | |||
84 | else if (command_line.endian == ENDIAN_UNSET) | |||
85 | { | |||
86 | big_endian = TRUE1; | |||
87 | { | |||
88 | LANG_FOR_EACH_INPUT_STATEMENT (s)lang_input_statement_type *s; for (s = (lang_input_statement_type *) file_chain.head; s != (lang_input_statement_type *) ((void *)0); s = (lang_input_statement_type *) s->next) | |||
89 | { | |||
90 | if (s->the_bfd != NULL((void*)0)) | |||
91 | { | |||
92 | if (bfd_little_endian (s->the_bfd)((s->the_bfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)) | |||
93 | { | |||
94 | big_endian = FALSE0; | |||
95 | swap = TRUE1; | |||
96 | } | |||
97 | break; | |||
98 | } | |||
99 | } | |||
100 | } | |||
101 | } | |||
102 | ||||
103 | if (swap) | |||
104 | { | |||
105 | bfd_byte buffer[8]; | |||
106 | ||||
107 | switch (statement->data_statement.type) | |||
108 | { | |||
109 | case QUAD281: | |||
110 | case SQUAD282: | |||
111 | if (sizeof (bfd_vma) >= QUAD_SIZE(8)) | |||
112 | { | |||
113 | bfd_putl64 (value, buffer); | |||
114 | value = bfd_getb64 (buffer); | |||
115 | break; | |||
116 | } | |||
117 | /* Fall through. */ | |||
118 | case LONG283: | |||
119 | bfd_putl32 (value, buffer); | |||
120 | value = bfd_getb32 (buffer); | |||
121 | break; | |||
122 | case SHORT284: | |||
123 | bfd_putl16 (value, buffer); | |||
124 | value = bfd_getb16 (buffer); | |||
125 | break; | |||
126 | case BYTE285: | |||
127 | break; | |||
128 | default: | |||
129 | abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c", 129 , __PRETTY_FUNCTION__); | |||
130 | } | |||
131 | } | |||
132 | } | |||
133 | ||||
134 | ASSERT (output_section->owner == output_bfd)do { if (!(output_section->owner == output_bfd)) info_assert ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c",134); } while (0); | |||
135 | switch (statement->data_statement.type) | |||
136 | { | |||
137 | case QUAD281: | |||
138 | case SQUAD282: | |||
139 | if (sizeof (bfd_vma) >= QUAD_SIZE(8)) | |||
140 | bfd_put_64 (output_bfd, value, link_order->u.data.contents)((*((output_bfd)->xvec->bfd_putx64)) ((value), (link_order ->u.data.contents))); | |||
141 | else | |||
142 | { | |||
143 | bfd_vma high; | |||
144 | ||||
145 | if (statement->data_statement.type == QUAD281) | |||
146 | high = 0; | |||
147 | else if ((value & 0x80000000) == 0) | |||
148 | high = 0; | |||
149 | else | |||
150 | high = (bfd_vma) -1; | |||
151 | bfd_put_32 (output_bfd, high,((*((output_bfd)->xvec->bfd_putx32)) ((high),((link_order ->u.data.contents + (big_endian ? 0 : 4))))) | |||
152 | (link_order->u.data.contents((*((output_bfd)->xvec->bfd_putx32)) ((high),((link_order ->u.data.contents + (big_endian ? 0 : 4))))) | |||
153 | + (big_endian ? 0 : 4)))((*((output_bfd)->xvec->bfd_putx32)) ((high),((link_order ->u.data.contents + (big_endian ? 0 : 4))))); | |||
154 | bfd_put_32 (output_bfd, value,((*((output_bfd)->xvec->bfd_putx32)) ((value),((link_order ->u.data.contents + (big_endian ? 4 : 0))))) | |||
155 | (link_order->u.data.contents((*((output_bfd)->xvec->bfd_putx32)) ((value),((link_order ->u.data.contents + (big_endian ? 4 : 0))))) | |||
156 | + (big_endian ? 4 : 0)))((*((output_bfd)->xvec->bfd_putx32)) ((value),((link_order ->u.data.contents + (big_endian ? 4 : 0))))); | |||
157 | } | |||
158 | link_order->size = QUAD_SIZE(8); | |||
159 | break; | |||
160 | case LONG283: | |||
161 | bfd_put_32 (output_bfd, value, link_order->u.data.contents)((*((output_bfd)->xvec->bfd_putx32)) ((value),(link_order ->u.data.contents))); | |||
162 | link_order->size = LONG_SIZE(4); | |||
163 | break; | |||
164 | case SHORT284: | |||
165 | bfd_put_16 (output_bfd, value, link_order->u.data.contents)((*((output_bfd)->xvec->bfd_putx16)) ((value),(link_order ->u.data.contents))); | |||
166 | link_order->size = SHORT_SIZE(2); | |||
167 | break; | |||
168 | case BYTE285: | |||
169 | bfd_put_8 (output_bfd, value, link_order->u.data.contents)((void) (*((unsigned char *) (link_order->u.data.contents) ) = (value) & 0xff)); | |||
170 | link_order->size = BYTE_SIZE(1); | |||
171 | break; | |||
172 | default: | |||
173 | abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c", 173 , __PRETTY_FUNCTION__); | |||
174 | } | |||
175 | } | |||
176 | break; | |||
177 | ||||
178 | case lang_reloc_statement_enum: | |||
179 | { | |||
180 | lang_reloc_statement_type *rs; | |||
181 | asection *output_section; | |||
182 | struct bfd_link_order *link_order; | |||
183 | ||||
184 | rs = &statement->reloc_statement; | |||
185 | ||||
186 | output_section = rs->output_section; | |||
187 | ASSERT (output_section->owner == output_bfd)do { if (!(output_section->owner == output_bfd)) info_assert ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c",187); } while (0); | |||
188 | ||||
189 | link_order = bfd_new_link_order (output_bfd, output_section); | |||
190 | if (link_order == NULL((void*)0)) | |||
191 | einfo (_("%P%F: bfd_new_link_order failed\n")("%P%F: bfd_new_link_order failed\n")); | |||
192 | ||||
193 | link_order->offset = rs->output_offset; | |||
| ||||
194 | link_order->size = bfd_get_reloc_size (rs->howto); | |||
195 | ||||
196 | link_order->u.reloc.p = xmalloc (sizeof (struct bfd_link_order_reloc)); | |||
197 | ||||
198 | link_order->u.reloc.p->reloc = rs->reloc; | |||
199 | link_order->u.reloc.p->addend = rs->addend_value; | |||
200 | ||||
201 | if (rs->name == NULL((void*)0)) | |||
202 | { | |||
203 | link_order->type = bfd_section_reloc_link_order; | |||
204 | if (rs->section->owner == output_bfd) | |||
205 | link_order->u.reloc.p->u.section = rs->section; | |||
206 | else | |||
207 | { | |||
208 | link_order->u.reloc.p->u.section = rs->section->output_section; | |||
209 | link_order->u.reloc.p->addend += rs->section->output_offset; | |||
210 | } | |||
211 | } | |||
212 | else | |||
213 | { | |||
214 | link_order->type = bfd_symbol_reloc_link_order; | |||
215 | link_order->u.reloc.p->u.name = rs->name; | |||
216 | } | |||
217 | } | |||
218 | break; | |||
219 | ||||
220 | case lang_input_section_enum: | |||
221 | { | |||
222 | /* Create a new link_order in the output section with this | |||
223 | attached */ | |||
224 | asection *i = statement->input_section.section; | |||
225 | ||||
226 | if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag | |||
227 | && (i->flags & SEC_EXCLUDE0x8000) == 0) | |||
228 | { | |||
229 | asection *output_section = i->output_section; | |||
230 | ||||
231 | ASSERT (output_section->owner == output_bfd)do { if (!(output_section->owner == output_bfd)) info_assert ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c",231); } while (0); | |||
232 | ||||
233 | if ((output_section->flags & SEC_HAS_CONTENTS0x100) != 0 | |||
234 | || ((output_section->flags & SEC_LOAD0x002) != 0 | |||
235 | && (output_section->flags & SEC_THREAD_LOCAL0x400))) | |||
236 | { | |||
237 | struct bfd_link_order *link_order; | |||
238 | ||||
239 | link_order = bfd_new_link_order (output_bfd, output_section); | |||
240 | ||||
241 | if (i->flags & SEC_NEVER_LOAD0x200) | |||
242 | { | |||
243 | /* We've got a never load section inside one which | |||
244 | is going to be output, we'll change it into a | |||
245 | fill. */ | |||
246 | link_order->type = bfd_data_link_order; | |||
247 | link_order->u.data.contents = (unsigned char *) ""; | |||
248 | link_order->u.data.size = 1; | |||
249 | } | |||
250 | else | |||
251 | { | |||
252 | link_order->type = bfd_indirect_link_order; | |||
253 | link_order->u.indirect.section = i; | |||
254 | ASSERT (i->output_section == output_section)do { if (!(i->output_section == output_section)) info_assert ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c",254); } while (0); | |||
255 | } | |||
256 | link_order->size = i->size; | |||
257 | link_order->offset = i->output_offset; | |||
258 | } | |||
259 | } | |||
260 | } | |||
261 | break; | |||
262 | ||||
263 | case lang_padding_statement_enum: | |||
264 | /* Make a new link_order with the right filler */ | |||
265 | { | |||
266 | asection *output_section; | |||
267 | struct bfd_link_order *link_order; | |||
268 | ||||
269 | output_section = statement->padding_statement.output_section; | |||
270 | ASSERT (statement->padding_statement.output_section->ownerdo { if (!(statement->padding_statement.output_section-> owner == output_bfd)) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c" ,271); } while (0) | |||
271 | == output_bfd)do { if (!(statement->padding_statement.output_section-> owner == output_bfd)) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c" ,271); } while (0); | |||
272 | if ((output_section->flags & SEC_HAS_CONTENTS0x100) != 0) | |||
273 | { | |||
274 | link_order = bfd_new_link_order (output_bfd, output_section); | |||
275 | link_order->type = bfd_data_link_order; | |||
276 | link_order->size = statement->padding_statement.size; | |||
277 | link_order->offset = statement->padding_statement.output_offset; | |||
278 | link_order->u.data.contents = statement->padding_statement.fill->data; | |||
279 | link_order->u.data.size = statement->padding_statement.fill->size; | |||
280 | } | |||
281 | } | |||
282 | break; | |||
283 | ||||
284 | default: | |||
285 | /* All the other ones fall through */ | |||
286 | break; | |||
287 | } | |||
288 | } | |||
289 | ||||
290 | /* Return true if NAME is the name of an unsplittable section. These | |||
291 | are the stabs strings, dwarf strings. */ | |||
292 | ||||
293 | static bfd_boolean | |||
294 | unsplittable_name (const char *name) | |||
295 | { | |||
296 | if (strncmp (name, ".stab", 5) == 0) | |||
297 | { | |||
298 | /* There are several stab like string sections. We pattern match on | |||
299 | ".stab...str" */ | |||
300 | unsigned len = strlen (name); | |||
301 | if (strcmp (&name[len-3], "str") == 0) | |||
302 | return TRUE1; | |||
303 | } | |||
304 | else if (strcmp (name, "$GDB_STRINGS$") == 0) | |||
305 | return TRUE1; | |||
306 | return FALSE0; | |||
307 | } | |||
308 | ||||
309 | /* Wander around the input sections, make sure that | |||
310 | we'll never try and create an output section with more relocs | |||
311 | than will fit.. Do this by always assuming the worst case, and | |||
312 | creating new output sections with all the right bits. */ | |||
313 | #define TESTIT1 1 | |||
314 | static asection * | |||
315 | clone_section (bfd *abfd, asection *s, const char *name, int *count) | |||
316 | { | |||
317 | char *tname; | |||
318 | char *sname; | |||
319 | unsigned int len; | |||
320 | asection *n; | |||
321 | struct bfd_link_hash_entry *h; | |||
322 | ||||
323 | /* Invent a section name from the section name and a dotted numeric | |||
324 | suffix. */ | |||
325 | len = strlen (name); | |||
326 | tname = xmalloc (len + 1); | |||
327 | memcpy (tname, name, len + 1); | |||
328 | /* Remove a dotted number suffix, from a previous split link. */ | |||
329 | while (len && ISDIGIT (tname[len-1])(_sch_istable[(tname[len-1]) & 0xff] & (unsigned short )(_sch_isdigit))) | |||
330 | len--; | |||
331 | if (len > 1 && tname[len-1] == '.') | |||
332 | /* It was a dotted number. */ | |||
333 | tname[len-1] = 0; | |||
334 | ||||
335 | /* We want to use the whole of the original section name for the | |||
336 | split name, but coff can be restricted to 8 character names. */ | |||
337 | if (bfd_family_coff (abfd)(((abfd)->xvec->flavour) == bfd_target_coff_flavour || ( (abfd)->xvec->flavour) == bfd_target_xcoff_flavour) && strlen (tname) > 5) | |||
338 | { | |||
339 | /* Some section names cannot be truncated, as the name is | |||
340 | used to locate some other section. */ | |||
341 | if (strncmp (name, ".stab", 5) == 0 | |||
342 | || strcmp (name, "$GDB_SYMBOLS$") == 0) | |||
343 | { | |||
344 | einfo (_ ("%F%P: cannot create split section name for %s\n")("%F%P: cannot create split section name for %s\n"), name); | |||
345 | /* Silence gcc warnings. einfo exits, so we never reach here. */ | |||
346 | return NULL((void*)0); | |||
347 | } | |||
348 | tname[5] = 0; | |||
349 | } | |||
350 | ||||
351 | if ((sname = bfd_get_unique_section_name (abfd, tname, count)) == NULL((void*)0) | |||
352 | || (n = bfd_make_section_anyway (abfd, sname)) == NULL((void*)0) | |||
353 | || (h = bfd_link_hash_lookup (link_info.hash, | |||
354 | sname, TRUE1, TRUE1, FALSE0)) == NULL((void*)0)) | |||
355 | { | |||
356 | einfo (_("%F%P: clone section failed: %E\n")("%F%P: clone section failed: %E\n")); | |||
357 | /* Silence gcc warnings. einfo exits, so we never reach here. */ | |||
358 | return NULL((void*)0); | |||
359 | } | |||
360 | free (tname); | |||
361 | ||||
362 | /* Set up section symbol. */ | |||
363 | h->type = bfd_link_hash_defined; | |||
364 | h->u.def.value = 0; | |||
365 | h->u.def.section = n; | |||
366 | ||||
367 | n->flags = s->flags; | |||
368 | n->vma = s->vma; | |||
369 | n->user_set_vma = s->user_set_vma; | |||
370 | n->lma = s->lma; | |||
371 | n->size = 0; | |||
372 | n->output_offset = s->output_offset; | |||
373 | n->output_section = n; | |||
374 | n->orelocation = 0; | |||
375 | n->reloc_count = 0; | |||
376 | n->alignment_power = s->alignment_power; | |||
377 | return n; | |||
378 | } | |||
379 | ||||
380 | #if TESTING | |||
381 | static void | |||
382 | ds (asection *s) | |||
383 | { | |||
384 | struct bfd_link_order *l = s->map_head.link_order; | |||
385 | printf ("vma %x size %x\n", s->vma, s->size); | |||
386 | while (l) | |||
387 | { | |||
388 | if (l->type == bfd_indirect_link_order) | |||
389 | { | |||
390 | printf ("%8x %s\n", l->offset, l->u.indirect.section->owner->filename); | |||
391 | } | |||
392 | else | |||
393 | { | |||
394 | printf (_("%8x something else\n")("%8x something else\n"), l->offset); | |||
395 | } | |||
396 | l = l->next; | |||
397 | } | |||
398 | printf ("\n"); | |||
399 | } | |||
400 | ||||
401 | dump (char *s, asection *a1, asection *a2) | |||
402 | { | |||
403 | printf ("%s\n", s); | |||
404 | ds (a1); | |||
405 | ds (a2); | |||
406 | } | |||
407 | ||||
408 | static void | |||
409 | sanity_check (bfd *abfd) | |||
410 | { | |||
411 | asection *s; | |||
412 | for (s = abfd->sections; s; s = s->next) | |||
413 | { | |||
414 | struct bfd_link_order *p; | |||
415 | bfd_vma prev = 0; | |||
416 | for (p = s->map_head.link_order; p; p = p->next) | |||
417 | { | |||
418 | if (p->offset > 100000) | |||
419 | abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c", 419 , __PRETTY_FUNCTION__); | |||
420 | if (p->offset < prev) | |||
421 | abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldwrite.c", 421 , __PRETTY_FUNCTION__); | |||
422 | prev = p->offset; | |||
423 | } | |||
424 | } | |||
425 | } | |||
426 | #else | |||
427 | #define sanity_check(a) | |||
428 | #define dump(a, b, c) | |||
429 | #endif | |||
430 | ||||
431 | static void | |||
432 | split_sections (bfd *abfd, struct bfd_link_info *info) | |||
433 | { | |||
434 | asection *original_sec; | |||
435 | int nsecs = abfd->section_count; | |||
436 | sanity_check (abfd); | |||
437 | /* Look through all the original sections. */ | |||
438 | for (original_sec = abfd->sections; | |||
439 | original_sec && nsecs; | |||
440 | original_sec = original_sec->next, nsecs--) | |||
441 | { | |||
442 | int count = 0; | |||
443 | unsigned int lines = 0; | |||
444 | unsigned int relocs = 0; | |||
445 | bfd_size_type sec_size = 0; | |||
446 | struct bfd_link_order *l; | |||
447 | struct bfd_link_order *p; | |||
448 | bfd_vma vma = original_sec->vma; | |||
449 | asection *cursor = original_sec; | |||
450 | ||||
451 | /* Count up the relocations and line entries to see if anything | |||
452 | would be too big to fit. Accumulate section size too. */ | |||
453 | for (l = NULL((void*)0), p = cursor->map_head.link_order; p != NULL((void*)0); p = l->next) | |||
454 | { | |||
455 | unsigned int thislines = 0; | |||
456 | unsigned int thisrelocs = 0; | |||
457 | bfd_size_type thissize = 0; | |||
458 | if (p->type == bfd_indirect_link_order) | |||
459 | { | |||
460 | asection *sec; | |||
461 | ||||
462 | sec = p->u.indirect.section; | |||
463 | ||||
464 | if (info->strip == strip_none | |||
465 | || info->strip == strip_some) | |||
466 | thislines = sec->lineno_count; | |||
467 | ||||
468 | if (info->relocatable) | |||
469 | thisrelocs = sec->reloc_count; | |||
470 | ||||
471 | thissize = sec->size; | |||
472 | ||||
473 | } | |||
474 | else if (info->relocatable | |||
475 | && (p->type == bfd_section_reloc_link_order | |||
476 | || p->type == bfd_symbol_reloc_link_order)) | |||
477 | thisrelocs++; | |||
478 | ||||
479 | if (l != NULL((void*)0) | |||
480 | && (thisrelocs + relocs >= config.split_by_reloc | |||
481 | || thislines + lines >= config.split_by_reloc | |||
482 | || (thissize + sec_size >= config.split_by_file)) | |||
483 | && !unsplittable_name (cursor->name)) | |||
484 | { | |||
485 | /* Create a new section and put this link order and the | |||
486 | following link orders into it. */ | |||
487 | bfd_vma shift_offset; | |||
488 | asection *n; | |||
489 | ||||
490 | n = clone_section (abfd, cursor, original_sec->name, &count); | |||
491 | ||||
492 | /* Attach the link orders to the new section and snip | |||
493 | them off from the old section. */ | |||
494 | n->map_head.link_order = p; | |||
495 | n->map_tail.link_order = cursor->map_tail.link_order; | |||
496 | cursor->map_tail.link_order = l; | |||
497 | l->next = NULL((void*)0); | |||
498 | l = p; | |||
499 | ||||
500 | /* Change the size of the original section and | |||
501 | update the vma of the new one. */ | |||
502 | ||||
503 | dump ("before snip", cursor, n); | |||
504 | ||||
505 | shift_offset = p->offset; | |||
506 | n->size = cursor->size - shift_offset; | |||
507 | cursor->size = shift_offset; | |||
508 | ||||
509 | vma += shift_offset; | |||
510 | n->lma = n->vma = vma; | |||
511 | ||||
512 | /* Run down the chain and change the output section to | |||
513 | the right one, update the offsets too. */ | |||
514 | do | |||
515 | { | |||
516 | p->offset -= shift_offset; | |||
517 | if (p->type == bfd_indirect_link_order) | |||
518 | { | |||
519 | p->u.indirect.section->output_section = n; | |||
520 | p->u.indirect.section->output_offset = p->offset; | |||
521 | } | |||
522 | p = p->next; | |||
523 | } | |||
524 | while (p); | |||
525 | ||||
526 | dump ("after snip", cursor, n); | |||
527 | cursor = n; | |||
528 | relocs = thisrelocs; | |||
529 | lines = thislines; | |||
530 | sec_size = thissize; | |||
531 | } | |||
532 | else | |||
533 | { | |||
534 | l = p; | |||
535 | relocs += thisrelocs; | |||
536 | lines += thislines; | |||
537 | sec_size += thissize; | |||
538 | } | |||
539 | } | |||
540 | } | |||
541 | sanity_check (abfd); | |||
542 | } | |||
543 | ||||
544 | /* Call BFD to write out the linked file. */ | |||
545 | ||||
546 | void | |||
547 | ldwrite (void) | |||
548 | { | |||
549 | /* Reset error indicator, which can typically something like invalid | |||
550 | format from opening up the .o files. */ | |||
551 | bfd_set_error (bfd_error_no_error); | |||
552 | lang_for_each_statement (build_link_order); | |||
553 | ||||
554 | if (config.split_by_reloc != (unsigned) -1 | |||
555 | || config.split_by_file != (bfd_size_type) -1) | |||
556 | split_sections (output_bfd, &link_info); | |||
557 | if (!bfd_final_link (output_bfd, &link_info)((*((output_bfd)->xvec->_bfd_final_link)) (output_bfd, & link_info))) | |||
558 | { | |||
559 | /* If there was an error recorded, print it out. Otherwise assume | |||
560 | an appropriate error message like unknown symbol was printed | |||
561 | out. */ | |||
562 | ||||
563 | if (bfd_get_error () != bfd_error_no_error) | |||
564 | einfo (_("%F%P: final link failed: %E\n")("%F%P: final link failed: %E\n")); | |||
565 | else | |||
566 | xexit (1); | |||
567 | } | |||
568 | } |