Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* POWER/PowerPC XCOFF linker support. |
66eb6687 | 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
43ecc30f | 3 | 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support. |
5 | ||
eb1e0e80 | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
eb1e0e80 NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
eb1e0e80 | 11 | (at your option) any later version. |
252b5132 | 12 | |
eb1e0e80 NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
eb1e0e80 NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
252b5132 RH |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "coff/internal.h" | |
beb1bf64 | 28 | #include "coff/xcoff.h" |
252b5132 | 29 | #include "libcoff.h" |
beb1bf64 | 30 | #include "libxcoff.h" |
24c611d1 | 31 | #include "libiberty.h" |
252b5132 RH |
32 | |
33 | /* This file holds the XCOFF linker code. */ | |
34 | ||
116c20d2 NC |
35 | #undef STRING_SIZE_SIZE |
36 | #define STRING_SIZE_SIZE 4 | |
252b5132 | 37 | |
252b5132 RH |
38 | /* We reuse the SEC_ROM flag as a mark flag for garbage collection. |
39 | This flag will only be used on input sections. */ | |
40 | ||
41 | #define SEC_MARK (SEC_ROM) | |
42 | ||
252b5132 RH |
43 | /* The list of import files. */ |
44 | ||
dc810e39 AM |
45 | struct xcoff_import_file |
46 | { | |
252b5132 RH |
47 | /* The next entry in the list. */ |
48 | struct xcoff_import_file *next; | |
49 | /* The path. */ | |
50 | const char *path; | |
51 | /* The file name. */ | |
52 | const char *file; | |
53 | /* The member name. */ | |
54 | const char *member; | |
55 | }; | |
56 | ||
252b5132 RH |
57 | /* Information we keep for each section in the output file during the |
58 | final link phase. */ | |
59 | ||
dc810e39 AM |
60 | struct xcoff_link_section_info |
61 | { | |
252b5132 RH |
62 | /* The relocs to be output. */ |
63 | struct internal_reloc *relocs; | |
64 | /* For each reloc against a global symbol whose index was not known | |
65 | when the reloc was handled, the global hash table entry. */ | |
66 | struct xcoff_link_hash_entry **rel_hashes; | |
67 | /* If there is a TOC relative reloc against a global symbol, and the | |
68 | index of the TOC symbol is not known when the reloc was handled, | |
69 | an entry is added to this linked list. This is not an array, | |
70 | like rel_hashes, because this case is quite uncommon. */ | |
116c20d2 NC |
71 | struct xcoff_toc_rel_hash |
72 | { | |
fbc4fff4 KH |
73 | struct xcoff_toc_rel_hash *next; |
74 | struct xcoff_link_hash_entry *h; | |
75 | struct internal_reloc *rel; | |
76 | } *toc_rel_hashes; | |
252b5132 RH |
77 | }; |
78 | ||
24c611d1 RS |
79 | /* Information that the XCOFF linker collects about an archive. */ |
80 | struct xcoff_archive_info | |
81 | { | |
82 | /* The archive described by this entry. */ | |
83 | bfd *archive; | |
84 | ||
85 | /* The import path and import filename to use when referring to | |
86 | this archive in the .loader section. */ | |
87 | const char *imppath; | |
88 | const char *impfile; | |
ee698300 RS |
89 | |
90 | /* True if the archive contains a dynamic object. */ | |
91 | unsigned int contains_shared_object_p : 1; | |
92 | ||
93 | /* True if the previous field is valid. */ | |
94 | unsigned int know_contains_shared_object_p : 1; | |
24c611d1 RS |
95 | }; |
96 | ||
d286971a RS |
97 | struct xcoff_link_hash_table |
98 | { | |
99 | struct bfd_link_hash_table root; | |
100 | ||
101 | /* The .debug string hash table. We need to compute this while | |
102 | reading the input files, so that we know how large the .debug | |
103 | section will be before we assign section positions. */ | |
104 | struct bfd_strtab_hash *debug_strtab; | |
105 | ||
106 | /* The .debug section we will use for the final output. */ | |
107 | asection *debug_section; | |
108 | ||
109 | /* The .loader section we will use for the final output. */ | |
110 | asection *loader_section; | |
111 | ||
112 | /* A count of non TOC relative relocs which will need to be | |
113 | allocated in the .loader section. */ | |
114 | size_t ldrel_count; | |
115 | ||
116 | /* The .loader section header. */ | |
117 | struct internal_ldhdr ldhdr; | |
118 | ||
119 | /* The .gl section we use to hold global linkage code. */ | |
120 | asection *linkage_section; | |
121 | ||
122 | /* The .tc section we use to hold toc entries we build for global | |
123 | linkage code. */ | |
124 | asection *toc_section; | |
125 | ||
126 | /* The .ds section we use to hold function descriptors which we | |
127 | create for exported symbols. */ | |
128 | asection *descriptor_section; | |
129 | ||
130 | /* The list of import files. */ | |
131 | struct xcoff_import_file *imports; | |
132 | ||
133 | /* Required alignment of sections within the output file. */ | |
134 | unsigned long file_align; | |
135 | ||
136 | /* Whether the .text section must be read-only. */ | |
137 | bfd_boolean textro; | |
138 | ||
139 | /* Whether -brtl was specified. */ | |
140 | bfd_boolean rtld; | |
141 | ||
142 | /* Whether garbage collection was done. */ | |
143 | bfd_boolean gc; | |
144 | ||
145 | /* A linked list of symbols for which we have size information. */ | |
146 | struct xcoff_link_size_list | |
147 | { | |
148 | struct xcoff_link_size_list *next; | |
149 | struct xcoff_link_hash_entry *h; | |
150 | bfd_size_type size; | |
151 | } | |
152 | *size_list; | |
153 | ||
24c611d1 RS |
154 | /* Information about archives. */ |
155 | htab_t archive_info; | |
156 | ||
d286971a RS |
157 | /* Magic sections: _text, _etext, _data, _edata, _end, end. */ |
158 | asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS]; | |
159 | }; | |
160 | ||
252b5132 RH |
161 | /* Information that we pass around while doing the final link step. */ |
162 | ||
dc810e39 AM |
163 | struct xcoff_final_link_info |
164 | { | |
252b5132 RH |
165 | /* General link information. */ |
166 | struct bfd_link_info *info; | |
167 | /* Output BFD. */ | |
168 | bfd *output_bfd; | |
169 | /* Hash table for long symbol names. */ | |
170 | struct bfd_strtab_hash *strtab; | |
171 | /* Array of information kept for each output section, indexed by the | |
172 | target_index field. */ | |
173 | struct xcoff_link_section_info *section_info; | |
174 | /* Symbol index of last C_FILE symbol (-1 if none). */ | |
175 | long last_file_index; | |
176 | /* Contents of last C_FILE symbol. */ | |
177 | struct internal_syment last_file; | |
178 | /* Symbol index of TOC symbol. */ | |
179 | long toc_symindx; | |
180 | /* Start of .loader symbols. */ | |
beb1bf64 | 181 | bfd_byte *ldsym; |
252b5132 | 182 | /* Next .loader reloc to swap out. */ |
beb1bf64 | 183 | bfd_byte *ldrel; |
252b5132 RH |
184 | /* File position of start of line numbers. */ |
185 | file_ptr line_filepos; | |
186 | /* Buffer large enough to hold swapped symbols of any input file. */ | |
187 | struct internal_syment *internal_syms; | |
188 | /* Buffer large enough to hold output indices of symbols of any | |
189 | input file. */ | |
190 | long *sym_indices; | |
191 | /* Buffer large enough to hold output symbols for any input file. */ | |
192 | bfd_byte *outsyms; | |
193 | /* Buffer large enough to hold external line numbers for any input | |
194 | section. */ | |
195 | bfd_byte *linenos; | |
196 | /* Buffer large enough to hold any input section. */ | |
197 | bfd_byte *contents; | |
198 | /* Buffer large enough to hold external relocs of any input section. */ | |
199 | bfd_byte *external_relocs; | |
200 | }; | |
201 | ||
116c20d2 NC |
202 | static bfd_boolean xcoff_mark (struct bfd_link_info *, asection *); |
203 | ||
252b5132 | 204 | \f |
252b5132 | 205 | |
252b5132 RH |
206 | /* Routines to read XCOFF dynamic information. This don't really |
207 | belong here, but we already have the ldsym manipulation routines | |
208 | here. */ | |
209 | ||
210 | /* Read the contents of a section. */ | |
211 | ||
b34976b6 | 212 | static bfd_boolean |
116c20d2 | 213 | xcoff_get_section_contents (bfd *abfd, asection *sec) |
252b5132 RH |
214 | { |
215 | if (coff_section_data (abfd, sec) == NULL) | |
216 | { | |
dc810e39 | 217 | bfd_size_type amt = sizeof (struct coff_section_tdata); |
116c20d2 | 218 | |
dc810e39 | 219 | sec->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 | 220 | if (sec->used_by_bfd == NULL) |
b34976b6 | 221 | return FALSE; |
252b5132 RH |
222 | } |
223 | ||
224 | if (coff_section_data (abfd, sec)->contents == NULL) | |
225 | { | |
eea6121a | 226 | bfd_byte *contents; |
116c20d2 NC |
227 | |
228 | if (! bfd_malloc_and_get_section (abfd, sec, &contents)) | |
eea6121a AM |
229 | { |
230 | if (contents != NULL) | |
231 | free (contents); | |
232 | return FALSE; | |
233 | } | |
234 | coff_section_data (abfd, sec)->contents = contents; | |
252b5132 RH |
235 | } |
236 | ||
b34976b6 | 237 | return TRUE; |
252b5132 RH |
238 | } |
239 | ||
240 | /* Get the size required to hold the dynamic symbols. */ | |
241 | ||
242 | long | |
116c20d2 | 243 | _bfd_xcoff_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
244 | { |
245 | asection *lsec; | |
246 | bfd_byte *contents; | |
247 | struct internal_ldhdr ldhdr; | |
248 | ||
249 | if ((abfd->flags & DYNAMIC) == 0) | |
250 | { | |
251 | bfd_set_error (bfd_error_invalid_operation); | |
252 | return -1; | |
253 | } | |
254 | ||
255 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
256 | if (lsec == NULL) | |
257 | { | |
258 | bfd_set_error (bfd_error_no_symbols); | |
259 | return -1; | |
260 | } | |
261 | ||
262 | if (! xcoff_get_section_contents (abfd, lsec)) | |
263 | return -1; | |
264 | contents = coff_section_data (abfd, lsec)->contents; | |
265 | ||
116c20d2 | 266 | bfd_xcoff_swap_ldhdr_in (abfd, (void *) contents, &ldhdr); |
252b5132 RH |
267 | |
268 | return (ldhdr.l_nsyms + 1) * sizeof (asymbol *); | |
269 | } | |
270 | ||
271 | /* Get the dynamic symbols. */ | |
272 | ||
273 | long | |
116c20d2 | 274 | _bfd_xcoff_canonicalize_dynamic_symtab (bfd *abfd, asymbol **psyms) |
252b5132 RH |
275 | { |
276 | asection *lsec; | |
277 | bfd_byte *contents; | |
278 | struct internal_ldhdr ldhdr; | |
279 | const char *strings; | |
beb1bf64 | 280 | bfd_byte *elsym, *elsymend; |
252b5132 RH |
281 | coff_symbol_type *symbuf; |
282 | ||
283 | if ((abfd->flags & DYNAMIC) == 0) | |
284 | { | |
285 | bfd_set_error (bfd_error_invalid_operation); | |
286 | return -1; | |
287 | } | |
288 | ||
289 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
290 | if (lsec == NULL) | |
291 | { | |
292 | bfd_set_error (bfd_error_no_symbols); | |
293 | return -1; | |
294 | } | |
295 | ||
296 | if (! xcoff_get_section_contents (abfd, lsec)) | |
297 | return -1; | |
298 | contents = coff_section_data (abfd, lsec)->contents; | |
299 | ||
b34976b6 | 300 | coff_section_data (abfd, lsec)->keep_contents = TRUE; |
252b5132 | 301 | |
beb1bf64 | 302 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
252b5132 RH |
303 | |
304 | strings = (char *) contents + ldhdr.l_stoff; | |
305 | ||
116c20d2 | 306 | symbuf = bfd_zalloc (abfd, ldhdr.l_nsyms * sizeof (* symbuf)); |
252b5132 RH |
307 | if (symbuf == NULL) |
308 | return -1; | |
309 | ||
beb1bf64 TR |
310 | elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr); |
311 | ||
312 | elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd); | |
313 | for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd), symbuf++, psyms++) | |
252b5132 RH |
314 | { |
315 | struct internal_ldsym ldsym; | |
316 | ||
beb1bf64 | 317 | bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym); |
252b5132 RH |
318 | |
319 | symbuf->symbol.the_bfd = abfd; | |
320 | ||
321 | if (ldsym._l._l_l._l_zeroes == 0) | |
322 | symbuf->symbol.name = strings + ldsym._l._l_l._l_offset; | |
323 | else | |
324 | { | |
beb1bf64 TR |
325 | char *c; |
326 | ||
dc810e39 | 327 | c = bfd_alloc (abfd, (bfd_size_type) SYMNMLEN + 1); |
beb1bf64 TR |
328 | if (c == NULL) |
329 | return -1; | |
330 | memcpy (c, ldsym._l._l_name, SYMNMLEN); | |
331 | c[SYMNMLEN] = '\0'; | |
332 | symbuf->symbol.name = c; | |
252b5132 RH |
333 | } |
334 | ||
335 | if (ldsym.l_smclas == XMC_XO) | |
336 | symbuf->symbol.section = bfd_abs_section_ptr; | |
337 | else | |
338 | symbuf->symbol.section = coff_section_from_bfd_index (abfd, | |
339 | ldsym.l_scnum); | |
340 | symbuf->symbol.value = ldsym.l_value - symbuf->symbol.section->vma; | |
341 | ||
342 | symbuf->symbol.flags = BSF_NO_FLAGS; | |
343 | if ((ldsym.l_smtype & L_EXPORT) != 0) | |
8602d4fe RS |
344 | { |
345 | if ((ldsym.l_smtype & L_WEAK) != 0) | |
346 | symbuf->symbol.flags |= BSF_WEAK; | |
347 | else | |
348 | symbuf->symbol.flags |= BSF_GLOBAL; | |
349 | } | |
252b5132 RH |
350 | |
351 | /* FIXME: We have no way to record the other information stored | |
b34976b6 | 352 | with the loader symbol. */ |
252b5132 RH |
353 | *psyms = (asymbol *) symbuf; |
354 | } | |
355 | ||
356 | *psyms = NULL; | |
357 | ||
358 | return ldhdr.l_nsyms; | |
359 | } | |
360 | ||
361 | /* Get the size required to hold the dynamic relocs. */ | |
362 | ||
363 | long | |
116c20d2 | 364 | _bfd_xcoff_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
365 | { |
366 | asection *lsec; | |
367 | bfd_byte *contents; | |
368 | struct internal_ldhdr ldhdr; | |
369 | ||
370 | if ((abfd->flags & DYNAMIC) == 0) | |
371 | { | |
372 | bfd_set_error (bfd_error_invalid_operation); | |
373 | return -1; | |
374 | } | |
375 | ||
376 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
377 | if (lsec == NULL) | |
378 | { | |
379 | bfd_set_error (bfd_error_no_symbols); | |
380 | return -1; | |
381 | } | |
382 | ||
383 | if (! xcoff_get_section_contents (abfd, lsec)) | |
384 | return -1; | |
385 | contents = coff_section_data (abfd, lsec)->contents; | |
386 | ||
beb1bf64 | 387 | bfd_xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) contents, &ldhdr); |
252b5132 RH |
388 | |
389 | return (ldhdr.l_nreloc + 1) * sizeof (arelent *); | |
390 | } | |
391 | ||
252b5132 RH |
392 | /* Get the dynamic relocs. */ |
393 | ||
394 | long | |
116c20d2 NC |
395 | _bfd_xcoff_canonicalize_dynamic_reloc (bfd *abfd, |
396 | arelent **prelocs, | |
397 | asymbol **syms) | |
252b5132 RH |
398 | { |
399 | asection *lsec; | |
400 | bfd_byte *contents; | |
401 | struct internal_ldhdr ldhdr; | |
402 | arelent *relbuf; | |
beb1bf64 | 403 | bfd_byte *elrel, *elrelend; |
252b5132 RH |
404 | |
405 | if ((abfd->flags & DYNAMIC) == 0) | |
406 | { | |
407 | bfd_set_error (bfd_error_invalid_operation); | |
408 | return -1; | |
409 | } | |
410 | ||
411 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
412 | if (lsec == NULL) | |
413 | { | |
414 | bfd_set_error (bfd_error_no_symbols); | |
415 | return -1; | |
416 | } | |
417 | ||
418 | if (! xcoff_get_section_contents (abfd, lsec)) | |
419 | return -1; | |
420 | contents = coff_section_data (abfd, lsec)->contents; | |
421 | ||
beb1bf64 | 422 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
252b5132 | 423 | |
116c20d2 | 424 | relbuf = bfd_alloc (abfd, ldhdr.l_nreloc * sizeof (arelent)); |
252b5132 RH |
425 | if (relbuf == NULL) |
426 | return -1; | |
427 | ||
beb1bf64 TR |
428 | elrel = contents + bfd_xcoff_loader_reloc_offset(abfd, &ldhdr); |
429 | ||
430 | elrelend = elrel + ldhdr.l_nreloc * bfd_xcoff_ldrelsz(abfd); | |
dc810e39 AM |
431 | for (; elrel < elrelend; elrel += bfd_xcoff_ldrelsz(abfd), relbuf++, |
432 | prelocs++) | |
252b5132 RH |
433 | { |
434 | struct internal_ldrel ldrel; | |
435 | ||
beb1bf64 | 436 | bfd_xcoff_swap_ldrel_in (abfd, elrel, &ldrel); |
252b5132 RH |
437 | |
438 | if (ldrel.l_symndx >= 3) | |
439 | relbuf->sym_ptr_ptr = syms + (ldrel.l_symndx - 3); | |
440 | else | |
441 | { | |
442 | const char *name; | |
443 | asection *sec; | |
444 | ||
445 | switch (ldrel.l_symndx) | |
446 | { | |
447 | case 0: | |
448 | name = ".text"; | |
449 | break; | |
450 | case 1: | |
451 | name = ".data"; | |
452 | break; | |
453 | case 2: | |
454 | name = ".bss"; | |
455 | break; | |
456 | default: | |
457 | abort (); | |
458 | break; | |
459 | } | |
460 | ||
461 | sec = bfd_get_section_by_name (abfd, name); | |
462 | if (sec == NULL) | |
463 | { | |
464 | bfd_set_error (bfd_error_bad_value); | |
465 | return -1; | |
466 | } | |
467 | ||
468 | relbuf->sym_ptr_ptr = sec->symbol_ptr_ptr; | |
469 | } | |
470 | ||
471 | relbuf->address = ldrel.l_vaddr; | |
472 | relbuf->addend = 0; | |
473 | ||
474 | /* Most dynamic relocs have the same type. FIXME: This is only | |
b34976b6 AM |
475 | correct if ldrel.l_rtype == 0. In other cases, we should use |
476 | a different howto. */ | |
beb1bf64 | 477 | relbuf->howto = bfd_xcoff_dynamic_reloc_howto(abfd); |
252b5132 RH |
478 | |
479 | /* FIXME: We have no way to record the l_rsecnm field. */ | |
480 | ||
481 | *prelocs = relbuf; | |
482 | } | |
483 | ||
484 | *prelocs = NULL; | |
485 | ||
486 | return ldhdr.l_nreloc; | |
487 | } | |
488 | \f | |
24c611d1 RS |
489 | /* Hash functions for xcoff_link_hash_table's archive_info. */ |
490 | ||
491 | static hashval_t | |
492 | xcoff_archive_info_hash (const void *data) | |
493 | { | |
494 | const struct xcoff_archive_info *info; | |
495 | ||
496 | info = (const struct xcoff_archive_info *) data; | |
497 | return htab_hash_pointer (info->archive); | |
498 | } | |
499 | ||
500 | static int | |
501 | xcoff_archive_info_eq (const void *data1, const void *data2) | |
502 | { | |
503 | const struct xcoff_archive_info *info1; | |
504 | const struct xcoff_archive_info *info2; | |
505 | ||
506 | info1 = (const struct xcoff_archive_info *) data1; | |
507 | info2 = (const struct xcoff_archive_info *) data2; | |
508 | return info1->archive == info2->archive; | |
509 | } | |
510 | ||
511 | /* Return information about archive ARCHIVE. Return NULL on error. */ | |
512 | ||
513 | static struct xcoff_archive_info * | |
514 | xcoff_get_archive_info (struct bfd_link_info *info, bfd *archive) | |
515 | { | |
516 | struct xcoff_link_hash_table *htab; | |
517 | struct xcoff_archive_info *entryp, entry; | |
518 | void **slot; | |
519 | ||
520 | htab = xcoff_hash_table (info); | |
521 | entry.archive = archive; | |
522 | slot = htab_find_slot (htab->archive_info, &entry, INSERT); | |
523 | if (!slot) | |
524 | return NULL; | |
525 | ||
526 | entryp = *slot; | |
527 | if (!entryp) | |
528 | { | |
529 | entryp = bfd_zalloc (archive, sizeof (entry)); | |
530 | if (!entryp) | |
531 | return NULL; | |
532 | ||
533 | entryp->archive = archive; | |
534 | *slot = entryp; | |
535 | } | |
536 | return entryp; | |
537 | } | |
538 | \f | |
252b5132 RH |
539 | /* Routine to create an entry in an XCOFF link hash table. */ |
540 | ||
541 | static struct bfd_hash_entry * | |
116c20d2 NC |
542 | xcoff_link_hash_newfunc (struct bfd_hash_entry *entry, |
543 | struct bfd_hash_table *table, | |
544 | const char *string) | |
252b5132 RH |
545 | { |
546 | struct xcoff_link_hash_entry *ret = (struct xcoff_link_hash_entry *) entry; | |
547 | ||
548 | /* Allocate the structure if it has not already been allocated by a | |
549 | subclass. */ | |
116c20d2 NC |
550 | if (ret == NULL) |
551 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
552 | if (ret == NULL) | |
553 | return NULL; | |
252b5132 RH |
554 | |
555 | /* Call the allocation method of the superclass. */ | |
556 | ret = ((struct xcoff_link_hash_entry *) | |
557 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
558 | table, string)); | |
559 | if (ret != NULL) | |
560 | { | |
561 | /* Set local fields. */ | |
562 | ret->indx = -1; | |
563 | ret->toc_section = NULL; | |
564 | ret->u.toc_indx = -1; | |
565 | ret->descriptor = NULL; | |
566 | ret->ldsym = NULL; | |
567 | ret->ldindx = -1; | |
568 | ret->flags = 0; | |
569 | ret->smclas = XMC_UA; | |
570 | } | |
571 | ||
572 | return (struct bfd_hash_entry *) ret; | |
573 | } | |
574 | ||
575 | /* Create a XCOFF link hash table. */ | |
576 | ||
577 | struct bfd_link_hash_table * | |
116c20d2 | 578 | _bfd_xcoff_bfd_link_hash_table_create (bfd *abfd) |
252b5132 RH |
579 | { |
580 | struct xcoff_link_hash_table *ret; | |
116c20d2 | 581 | bfd_size_type amt = sizeof (* ret); |
252b5132 | 582 | |
116c20d2 NC |
583 | ret = bfd_malloc (amt); |
584 | if (ret == NULL) | |
585 | return NULL; | |
66eb6687 AM |
586 | if (!_bfd_link_hash_table_init (&ret->root, abfd, xcoff_link_hash_newfunc, |
587 | sizeof (struct xcoff_link_hash_entry))) | |
252b5132 | 588 | { |
e2d34d7d | 589 | free (ret); |
116c20d2 | 590 | return NULL; |
252b5132 RH |
591 | } |
592 | ||
593 | ret->debug_strtab = _bfd_xcoff_stringtab_init (); | |
594 | ret->debug_section = NULL; | |
595 | ret->loader_section = NULL; | |
596 | ret->ldrel_count = 0; | |
597 | memset (&ret->ldhdr, 0, sizeof (struct internal_ldhdr)); | |
598 | ret->linkage_section = NULL; | |
599 | ret->toc_section = NULL; | |
600 | ret->descriptor_section = NULL; | |
601 | ret->imports = NULL; | |
602 | ret->file_align = 0; | |
b34976b6 AM |
603 | ret->textro = FALSE; |
604 | ret->gc = FALSE; | |
24c611d1 RS |
605 | ret->archive_info = htab_create (37, xcoff_archive_info_hash, |
606 | xcoff_archive_info_eq, NULL); | |
252b5132 RH |
607 | memset (ret->special_sections, 0, sizeof ret->special_sections); |
608 | ||
609 | /* The linker will always generate a full a.out header. We need to | |
610 | record that fact now, before the sizeof_headers routine could be | |
611 | called. */ | |
b34976b6 | 612 | xcoff_data (abfd)->full_aouthdr = TRUE; |
252b5132 RH |
613 | |
614 | return &ret->root; | |
615 | } | |
616 | ||
e2d34d7d DJ |
617 | /* Free a XCOFF link hash table. */ |
618 | ||
619 | void | |
116c20d2 | 620 | _bfd_xcoff_bfd_link_hash_table_free (struct bfd_link_hash_table *hash) |
e2d34d7d DJ |
621 | { |
622 | struct xcoff_link_hash_table *ret = (struct xcoff_link_hash_table *) hash; | |
623 | ||
624 | _bfd_stringtab_free (ret->debug_strtab); | |
625 | bfd_hash_table_free (&ret->root.table); | |
626 | free (ret); | |
627 | } | |
252b5132 RH |
628 | \f |
629 | /* Read internal relocs for an XCOFF csect. This is a wrapper around | |
630 | _bfd_coff_read_internal_relocs which tries to take advantage of any | |
631 | relocs which may have been cached for the enclosing section. */ | |
632 | ||
633 | static struct internal_reloc * | |
116c20d2 NC |
634 | xcoff_read_internal_relocs (bfd *abfd, |
635 | asection *sec, | |
636 | bfd_boolean cache, | |
637 | bfd_byte *external_relocs, | |
638 | bfd_boolean require_internal, | |
639 | struct internal_reloc *internal_relocs) | |
252b5132 RH |
640 | { |
641 | if (coff_section_data (abfd, sec) != NULL | |
642 | && coff_section_data (abfd, sec)->relocs == NULL | |
643 | && xcoff_section_data (abfd, sec) != NULL) | |
644 | { | |
645 | asection *enclosing; | |
646 | ||
647 | enclosing = xcoff_section_data (abfd, sec)->enclosing; | |
648 | ||
649 | if (enclosing != NULL | |
650 | && (coff_section_data (abfd, enclosing) == NULL | |
651 | || coff_section_data (abfd, enclosing)->relocs == NULL) | |
652 | && cache | |
653 | && enclosing->reloc_count > 0) | |
654 | { | |
b34976b6 | 655 | if (_bfd_coff_read_internal_relocs (abfd, enclosing, TRUE, |
116c20d2 | 656 | external_relocs, FALSE, NULL) |
252b5132 RH |
657 | == NULL) |
658 | return NULL; | |
659 | } | |
660 | ||
661 | if (enclosing != NULL | |
662 | && coff_section_data (abfd, enclosing) != NULL | |
663 | && coff_section_data (abfd, enclosing)->relocs != NULL) | |
664 | { | |
665 | size_t off; | |
666 | ||
667 | off = ((sec->rel_filepos - enclosing->rel_filepos) | |
668 | / bfd_coff_relsz (abfd)); | |
beb1bf64 | 669 | |
252b5132 RH |
670 | if (! require_internal) |
671 | return coff_section_data (abfd, enclosing)->relocs + off; | |
672 | memcpy (internal_relocs, | |
673 | coff_section_data (abfd, enclosing)->relocs + off, | |
674 | sec->reloc_count * sizeof (struct internal_reloc)); | |
675 | return internal_relocs; | |
676 | } | |
677 | } | |
678 | ||
679 | return _bfd_coff_read_internal_relocs (abfd, sec, cache, external_relocs, | |
680 | require_internal, internal_relocs); | |
681 | } | |
682 | \f | |
24c611d1 RS |
683 | /* Split FILENAME into an import path and an import filename, |
684 | storing them in *IMPPATH and *IMPFILE respectively. */ | |
685 | ||
686 | bfd_boolean | |
687 | bfd_xcoff_split_import_path (bfd *abfd, const char *filename, | |
688 | const char **imppath, const char **impfile) | |
689 | { | |
91d6fa6a | 690 | const char *base; |
24c611d1 RS |
691 | size_t length; |
692 | char *path; | |
693 | ||
91d6fa6a NC |
694 | base = lbasename (filename); |
695 | length = base - filename; | |
24c611d1 RS |
696 | if (length == 0) |
697 | /* The filename has no directory component, so use an empty path. */ | |
698 | *imppath = ""; | |
699 | else if (length == 1) | |
700 | /* The filename is in the root directory. */ | |
701 | *imppath = "/"; | |
702 | else | |
703 | { | |
704 | /* Extract the (non-empty) directory part. Note that we don't | |
705 | need to strip duplicate directory separators from any part | |
706 | of the string; the native linker doesn't do that either. */ | |
707 | path = bfd_alloc (abfd, length); | |
708 | if (path == NULL) | |
709 | return FALSE; | |
710 | memcpy (path, filename, length - 1); | |
711 | path[length - 1] = 0; | |
712 | *imppath = path; | |
713 | } | |
91d6fa6a | 714 | *impfile = base; |
24c611d1 RS |
715 | return TRUE; |
716 | } | |
717 | ||
718 | /* Set ARCHIVE's import path as though its filename had been given | |
719 | as FILENAME. */ | |
720 | ||
721 | bfd_boolean | |
722 | bfd_xcoff_set_archive_import_path (struct bfd_link_info *info, | |
723 | bfd *archive, const char *filename) | |
724 | { | |
725 | struct xcoff_archive_info *archive_info; | |
726 | ||
727 | archive_info = xcoff_get_archive_info (info, archive); | |
728 | return (archive_info != NULL | |
729 | && bfd_xcoff_split_import_path (archive, filename, | |
730 | &archive_info->imppath, | |
731 | &archive_info->impfile)); | |
732 | } | |
733 | ||
734 | /* H is an imported symbol. Set the import module's path, file and member | |
735 | to IMPATH, IMPFILE and IMPMEMBER respectively. All three are null if | |
736 | no specific import module is specified. */ | |
737 | ||
738 | static bfd_boolean | |
739 | xcoff_set_import_path (struct bfd_link_info *info, | |
740 | struct xcoff_link_hash_entry *h, | |
741 | const char *imppath, const char *impfile, | |
742 | const char *impmember) | |
743 | { | |
744 | unsigned int c; | |
745 | struct xcoff_import_file **pp; | |
746 | ||
747 | /* We overload the ldindx field to hold the l_ifile value for this | |
748 | symbol. */ | |
749 | BFD_ASSERT (h->ldsym == NULL); | |
750 | BFD_ASSERT ((h->flags & XCOFF_BUILT_LDSYM) == 0); | |
751 | if (imppath == NULL) | |
752 | h->ldindx = -1; | |
753 | else | |
754 | { | |
755 | /* We start c at 1 because the first entry in the import list is | |
756 | reserved for the library search path. */ | |
757 | for (pp = &xcoff_hash_table (info)->imports, c = 1; | |
758 | *pp != NULL; | |
759 | pp = &(*pp)->next, ++c) | |
760 | { | |
007d6189 KT |
761 | if (filename_cmp ((*pp)->path, imppath) == 0 |
762 | && filename_cmp ((*pp)->file, impfile) == 0 | |
763 | && filename_cmp ((*pp)->member, impmember) == 0) | |
24c611d1 RS |
764 | break; |
765 | } | |
766 | ||
767 | if (*pp == NULL) | |
768 | { | |
769 | struct xcoff_import_file *n; | |
770 | bfd_size_type amt = sizeof (* n); | |
771 | ||
772 | n = bfd_alloc (info->output_bfd, amt); | |
773 | if (n == NULL) | |
774 | return FALSE; | |
775 | n->next = NULL; | |
776 | n->path = imppath; | |
777 | n->file = impfile; | |
778 | n->member = impmember; | |
779 | *pp = n; | |
780 | } | |
781 | h->ldindx = c; | |
782 | } | |
783 | return TRUE; | |
784 | } | |
785 | \f | |
8602d4fe RS |
786 | /* H is the bfd symbol associated with exported .loader symbol LDSYM. |
787 | Return true if LDSYM defines H. */ | |
788 | ||
789 | static bfd_boolean | |
790 | xcoff_dynamic_definition_p (struct xcoff_link_hash_entry *h, | |
791 | struct internal_ldsym *ldsym) | |
792 | { | |
793 | /* If we didn't know about H before processing LDSYM, LDSYM | |
794 | definitely defines H. */ | |
795 | if (h->root.type == bfd_link_hash_new) | |
796 | return TRUE; | |
797 | ||
798 | /* If H is currently a weak dynamic symbol, and if LDSYM is a strong | |
799 | dynamic symbol, LDSYM trumps the current definition of H. */ | |
800 | if ((ldsym->l_smtype & L_WEAK) == 0 | |
801 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0 | |
802 | && (h->flags & XCOFF_DEF_REGULAR) == 0 | |
803 | && (h->root.type == bfd_link_hash_defweak | |
804 | || h->root.type == bfd_link_hash_undefweak)) | |
805 | return TRUE; | |
806 | ||
807 | /* If H is currently undefined, LDSYM defines it. */ | |
808 | if ((h->flags & XCOFF_DEF_DYNAMIC) == 0 | |
809 | && (h->root.type == bfd_link_hash_undefined | |
810 | || h->root.type == bfd_link_hash_undefweak)) | |
811 | return TRUE; | |
812 | ||
813 | return FALSE; | |
814 | } | |
815 | ||
116c20d2 NC |
816 | /* This function is used to add symbols from a dynamic object to the |
817 | global symbol table. */ | |
252b5132 | 818 | |
b34976b6 | 819 | static bfd_boolean |
116c20d2 | 820 | xcoff_link_add_dynamic_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
821 | { |
822 | asection *lsec; | |
beb1bf64 | 823 | bfd_byte *contents; |
252b5132 RH |
824 | struct internal_ldhdr ldhdr; |
825 | const char *strings; | |
beb1bf64 | 826 | bfd_byte *elsym, *elsymend; |
116c20d2 | 827 | struct xcoff_import_file *n; |
116c20d2 NC |
828 | unsigned int c; |
829 | struct xcoff_import_file **pp; | |
252b5132 | 830 | |
116c20d2 NC |
831 | /* We can only handle a dynamic object if we are generating an XCOFF |
832 | output file. */ | |
f13a99db | 833 | if (info->output_bfd->xvec != abfd->xvec) |
116c20d2 NC |
834 | { |
835 | (*_bfd_error_handler) | |
836 | (_("%s: XCOFF shared object when not producing XCOFF output"), | |
837 | bfd_get_filename (abfd)); | |
838 | bfd_set_error (bfd_error_invalid_operation); | |
839 | return FALSE; | |
840 | } | |
252b5132 | 841 | |
116c20d2 NC |
842 | /* The symbols we use from a dynamic object are not the symbols in |
843 | the normal symbol table, but, rather, the symbols in the export | |
844 | table. If there is a global symbol in a dynamic object which is | |
845 | not in the export table, the loader will not be able to find it, | |
846 | so we don't want to find it either. Also, on AIX 4.1.3, shr.o in | |
847 | libc.a has symbols in the export table which are not in the | |
848 | symbol table. */ | |
849 | ||
850 | /* Read in the .loader section. FIXME: We should really use the | |
851 | o_snloader field in the a.out header, rather than grabbing the | |
852 | section by name. */ | |
252b5132 RH |
853 | lsec = bfd_get_section_by_name (abfd, ".loader"); |
854 | if (lsec == NULL) | |
855 | { | |
116c20d2 NC |
856 | (*_bfd_error_handler) |
857 | (_("%s: dynamic object with no .loader section"), | |
858 | bfd_get_filename (abfd)); | |
859 | bfd_set_error (bfd_error_no_symbols); | |
860 | return FALSE; | |
252b5132 RH |
861 | } |
862 | ||
863 | if (! xcoff_get_section_contents (abfd, lsec)) | |
b34976b6 | 864 | return FALSE; |
beb1bf64 TR |
865 | contents = coff_section_data (abfd, lsec)->contents; |
866 | ||
116c20d2 NC |
867 | /* Remove the sections from this object, so that they do not get |
868 | included in the link. */ | |
869 | bfd_section_list_clear (abfd); | |
870 | ||
beb1bf64 | 871 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
252b5132 | 872 | |
beb1bf64 | 873 | strings = (char *) contents + ldhdr.l_stoff; |
252b5132 | 874 | |
beb1bf64 | 875 | elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr); |
252b5132 | 876 | |
beb1bf64 | 877 | elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd); |
116c20d2 | 878 | |
beb1bf64 | 879 | for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd)) |
252b5132 RH |
880 | { |
881 | struct internal_ldsym ldsym; | |
882 | char nambuf[SYMNMLEN + 1]; | |
883 | const char *name; | |
116c20d2 | 884 | struct xcoff_link_hash_entry *h; |
252b5132 | 885 | |
beb1bf64 | 886 | bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym); |
252b5132 RH |
887 | |
888 | /* We are only interested in exported symbols. */ | |
889 | if ((ldsym.l_smtype & L_EXPORT) == 0) | |
890 | continue; | |
891 | ||
892 | if (ldsym._l._l_l._l_zeroes == 0) | |
893 | name = strings + ldsym._l._l_l._l_offset; | |
894 | else | |
895 | { | |
896 | memcpy (nambuf, ldsym._l._l_name, SYMNMLEN); | |
897 | nambuf[SYMNMLEN] = '\0'; | |
898 | name = nambuf; | |
899 | } | |
900 | ||
116c20d2 NC |
901 | /* Normally we could not call xcoff_link_hash_lookup in an add |
902 | symbols routine, since we might not be using an XCOFF hash | |
903 | table. However, we verified above that we are using an XCOFF | |
b34976b6 | 904 | hash table. */ |
252b5132 | 905 | |
116c20d2 NC |
906 | h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, TRUE, |
907 | TRUE, TRUE); | |
908 | if (h == NULL) | |
909 | return FALSE; | |
252b5132 | 910 | |
8602d4fe RS |
911 | if (!xcoff_dynamic_definition_p (h, &ldsym)) |
912 | continue; | |
116c20d2 | 913 | |
8602d4fe RS |
914 | h->flags |= XCOFF_DEF_DYNAMIC; |
915 | h->smclas = ldsym.l_smclas; | |
916 | if (h->smclas == XMC_XO) | |
116c20d2 NC |
917 | { |
918 | /* This symbol has an absolute value. */ | |
8602d4fe RS |
919 | if ((ldsym.l_smtype & L_WEAK) != 0) |
920 | h->root.type = bfd_link_hash_defweak; | |
921 | else | |
922 | h->root.type = bfd_link_hash_defined; | |
116c20d2 NC |
923 | h->root.u.def.section = bfd_abs_section_ptr; |
924 | h->root.u.def.value = ldsym.l_value; | |
925 | } | |
8602d4fe RS |
926 | else |
927 | { | |
928 | /* Otherwise, we don't bother to actually define the symbol, | |
929 | since we don't have a section to put it in anyhow. | |
930 | We assume instead that an undefined XCOFF_DEF_DYNAMIC symbol | |
931 | should be imported from the symbol's undef.abfd. */ | |
932 | if ((ldsym.l_smtype & L_WEAK) != 0) | |
933 | h->root.type = bfd_link_hash_undefweak; | |
934 | else | |
935 | h->root.type = bfd_link_hash_undefined; | |
936 | h->root.u.undef.abfd = abfd; | |
937 | } | |
116c20d2 NC |
938 | |
939 | /* If this symbol defines a function descriptor, then it | |
940 | implicitly defines the function code as well. */ | |
941 | if (h->smclas == XMC_DS | |
942 | || (h->smclas == XMC_XO && name[0] != '.')) | |
943 | h->flags |= XCOFF_DESCRIPTOR; | |
944 | if ((h->flags & XCOFF_DESCRIPTOR) != 0) | |
945 | { | |
946 | struct xcoff_link_hash_entry *hds; | |
947 | ||
948 | hds = h->descriptor; | |
949 | if (hds == NULL) | |
950 | { | |
951 | char *dsnm; | |
952 | ||
953 | dsnm = bfd_malloc ((bfd_size_type) strlen (name) + 2); | |
954 | if (dsnm == NULL) | |
955 | return FALSE; | |
956 | dsnm[0] = '.'; | |
957 | strcpy (dsnm + 1, name); | |
958 | hds = xcoff_link_hash_lookup (xcoff_hash_table (info), dsnm, | |
959 | TRUE, TRUE, TRUE); | |
960 | free (dsnm); | |
961 | if (hds == NULL) | |
962 | return FALSE; | |
963 | ||
116c20d2 NC |
964 | hds->descriptor = h; |
965 | h->descriptor = hds; | |
966 | } | |
967 | ||
8602d4fe | 968 | if (xcoff_dynamic_definition_p (hds, &ldsym)) |
116c20d2 | 969 | { |
8602d4fe RS |
970 | hds->root.type = h->root.type; |
971 | hds->flags |= XCOFF_DEF_DYNAMIC; | |
972 | if (h->smclas == XMC_XO) | |
973 | { | |
974 | /* An absolute symbol appears to actually define code, not a | |
975 | function descriptor. This is how some math functions are | |
976 | implemented on AIX 4.1. */ | |
977 | hds->smclas = XMC_XO; | |
978 | hds->root.u.def.section = bfd_abs_section_ptr; | |
979 | hds->root.u.def.value = ldsym.l_value; | |
980 | } | |
981 | else | |
982 | { | |
983 | hds->smclas = XMC_PR; | |
984 | hds->root.u.undef.abfd = abfd; | |
985 | /* We do not want to add this to the undefined | |
986 | symbol list. */ | |
987 | } | |
116c20d2 NC |
988 | } |
989 | } | |
990 | } | |
991 | ||
992 | if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents) | |
252b5132 | 993 | { |
116c20d2 NC |
994 | free (coff_section_data (abfd, lsec)->contents); |
995 | coff_section_data (abfd, lsec)->contents = NULL; | |
252b5132 RH |
996 | } |
997 | ||
116c20d2 NC |
998 | /* Record this file in the import files. */ |
999 | n = bfd_alloc (abfd, (bfd_size_type) sizeof (struct xcoff_import_file)); | |
1000 | if (n == NULL) | |
1001 | return FALSE; | |
1002 | n->next = NULL; | |
252b5132 | 1003 | |
116c20d2 | 1004 | if (abfd->my_archive == NULL) |
252b5132 | 1005 | { |
24c611d1 RS |
1006 | if (!bfd_xcoff_split_import_path (abfd, abfd->filename, |
1007 | &n->path, &n->file)) | |
1008 | return FALSE; | |
1009 | n->member = ""; | |
116c20d2 NC |
1010 | } |
1011 | else | |
1012 | { | |
24c611d1 RS |
1013 | struct xcoff_archive_info *archive_info; |
1014 | ||
1015 | archive_info = xcoff_get_archive_info (info, abfd->my_archive); | |
1016 | if (!archive_info->impfile) | |
1017 | { | |
1018 | if (!bfd_xcoff_split_import_path (archive_info->archive, | |
1019 | archive_info->archive->filename, | |
1020 | &archive_info->imppath, | |
1021 | &archive_info->impfile)) | |
1022 | return FALSE; | |
1023 | } | |
1024 | n->path = archive_info->imppath; | |
1025 | n->file = archive_info->impfile; | |
1026 | n->member = bfd_get_filename (abfd); | |
252b5132 RH |
1027 | } |
1028 | ||
116c20d2 NC |
1029 | /* We start c at 1 because the first import file number is reserved |
1030 | for LIBPATH. */ | |
1031 | for (pp = &xcoff_hash_table (info)->imports, c = 1; | |
1032 | *pp != NULL; | |
1033 | pp = &(*pp)->next, ++c) | |
1034 | ; | |
1035 | *pp = n; | |
252b5132 | 1036 | |
116c20d2 | 1037 | xcoff_data (abfd)->import_file_id = c; |
252b5132 | 1038 | |
116c20d2 | 1039 | return TRUE; |
252b5132 RH |
1040 | } |
1041 | ||
dc810e39 AM |
1042 | /* xcoff_link_create_extra_sections |
1043 | ||
1044 | Takes care of creating the .loader, .gl, .ds, .debug and sections. */ | |
1045 | ||
b34976b6 | 1046 | static bfd_boolean |
116c20d2 | 1047 | xcoff_link_create_extra_sections (bfd * abfd, struct bfd_link_info *info) |
dc810e39 | 1048 | { |
b34976b6 | 1049 | bfd_boolean return_value = FALSE; |
beb1bf64 | 1050 | |
f13a99db | 1051 | if (info->output_bfd->xvec == abfd->xvec) |
dc810e39 | 1052 | { |
beb1bf64 TR |
1053 | /* We need to build a .loader section, so we do it here. This |
1054 | won't work if we're producing an XCOFF output file with no | |
1055 | XCOFF input files. FIXME. */ | |
1056 | ||
b3d1832c RS |
1057 | if (!info->relocatable |
1058 | && xcoff_hash_table (info)->loader_section == NULL) | |
dc810e39 AM |
1059 | { |
1060 | asection *lsec; | |
117ed4f8 | 1061 | flagword flags = SEC_HAS_CONTENTS | SEC_IN_MEMORY; |
dc810e39 | 1062 | |
117ed4f8 | 1063 | lsec = bfd_make_section_anyway_with_flags (abfd, ".loader", flags); |
dc810e39 | 1064 | if (lsec == NULL) |
116c20d2 NC |
1065 | goto end_return; |
1066 | ||
dc810e39 | 1067 | xcoff_hash_table (info)->loader_section = lsec; |
beb1bf64 | 1068 | } |
beb1bf64 TR |
1069 | |
1070 | /* Likewise for the linkage section. */ | |
dc810e39 AM |
1071 | if (xcoff_hash_table (info)->linkage_section == NULL) |
1072 | { | |
1073 | asection *lsec; | |
117ed4f8 AM |
1074 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
1075 | | SEC_IN_MEMORY); | |
beb1bf64 | 1076 | |
117ed4f8 | 1077 | lsec = bfd_make_section_anyway_with_flags (abfd, ".gl", flags); |
dc810e39 | 1078 | if (lsec == NULL) |
116c20d2 | 1079 | goto end_return; |
beb1bf64 | 1080 | |
dc810e39 | 1081 | xcoff_hash_table (info)->linkage_section = lsec; |
dc810e39 AM |
1082 | lsec->alignment_power = 2; |
1083 | } | |
beb1bf64 TR |
1084 | |
1085 | /* Likewise for the TOC section. */ | |
dc810e39 AM |
1086 | if (xcoff_hash_table (info)->toc_section == NULL) |
1087 | { | |
1088 | asection *tsec; | |
117ed4f8 AM |
1089 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
1090 | | SEC_IN_MEMORY); | |
beb1bf64 | 1091 | |
117ed4f8 | 1092 | tsec = bfd_make_section_anyway_with_flags (abfd, ".tc", flags); |
dc810e39 | 1093 | if (tsec == NULL) |
116c20d2 | 1094 | goto end_return; |
beb1bf64 | 1095 | |
dc810e39 | 1096 | xcoff_hash_table (info)->toc_section = tsec; |
dc810e39 | 1097 | tsec->alignment_power = 2; |
beb1bf64 TR |
1098 | } |
1099 | ||
dc810e39 AM |
1100 | /* Likewise for the descriptor section. */ |
1101 | if (xcoff_hash_table (info)->descriptor_section == NULL) | |
1102 | { | |
1103 | asection *dsec; | |
117ed4f8 AM |
1104 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
1105 | | SEC_IN_MEMORY); | |
dc810e39 | 1106 | |
117ed4f8 | 1107 | dsec = bfd_make_section_anyway_with_flags (abfd, ".ds", flags); |
dc810e39 | 1108 | if (dsec == NULL) |
116c20d2 | 1109 | goto end_return; |
dc810e39 AM |
1110 | |
1111 | xcoff_hash_table (info)->descriptor_section = dsec; | |
dc810e39 AM |
1112 | dsec->alignment_power = 2; |
1113 | } | |
beb1bf64 TR |
1114 | |
1115 | /* Likewise for the .debug section. */ | |
1116 | if (xcoff_hash_table (info)->debug_section == NULL | |
dc810e39 AM |
1117 | && info->strip != strip_all) |
1118 | { | |
1119 | asection *dsec; | |
117ed4f8 | 1120 | flagword flags = SEC_HAS_CONTENTS | SEC_IN_MEMORY; |
beb1bf64 | 1121 | |
117ed4f8 | 1122 | dsec = bfd_make_section_anyway_with_flags (abfd, ".debug", flags); |
dc810e39 | 1123 | if (dsec == NULL) |
116c20d2 NC |
1124 | goto end_return; |
1125 | ||
dc810e39 | 1126 | xcoff_hash_table (info)->debug_section = dsec; |
beb1bf64 | 1127 | } |
dc810e39 AM |
1128 | } |
1129 | ||
b34976b6 | 1130 | return_value = TRUE; |
beb1bf64 TR |
1131 | |
1132 | end_return: | |
1133 | ||
1134 | return return_value; | |
1135 | } | |
1136 | ||
116c20d2 NC |
1137 | /* Returns the index of reloc in RELOCS with the least address greater |
1138 | than or equal to ADDRESS. The relocs are sorted by address. */ | |
1139 | ||
1140 | static bfd_size_type | |
1141 | xcoff_find_reloc (struct internal_reloc *relocs, | |
1142 | bfd_size_type count, | |
1143 | bfd_vma address) | |
1144 | { | |
1145 | bfd_size_type min, max, this; | |
1146 | ||
1147 | if (count < 2) | |
1148 | { | |
1149 | if (count == 1 && relocs[0].r_vaddr < address) | |
1150 | return 1; | |
1151 | else | |
1152 | return 0; | |
1153 | } | |
1154 | ||
1155 | min = 0; | |
1156 | max = count; | |
1157 | ||
1158 | /* Do a binary search over (min,max]. */ | |
1159 | while (min + 1 < max) | |
1160 | { | |
1161 | bfd_vma raddr; | |
1162 | ||
1163 | this = (max + min) / 2; | |
1164 | raddr = relocs[this].r_vaddr; | |
1165 | if (raddr > address) | |
1166 | max = this; | |
1167 | else if (raddr < address) | |
1168 | min = this; | |
1169 | else | |
1170 | { | |
1171 | min = this; | |
1172 | break; | |
1173 | } | |
1174 | } | |
1175 | ||
1176 | if (relocs[min].r_vaddr < address) | |
1177 | return min + 1; | |
1178 | ||
1179 | while (min > 0 | |
1180 | && relocs[min - 1].r_vaddr == address) | |
1181 | --min; | |
1182 | ||
1183 | return min; | |
1184 | } | |
1185 | ||
252b5132 RH |
1186 | /* Add all the symbols from an object file to the hash table. |
1187 | ||
1188 | XCOFF is a weird format. A normal XCOFF .o files will have three | |
1189 | COFF sections--.text, .data, and .bss--but each COFF section will | |
1190 | contain many csects. These csects are described in the symbol | |
1191 | table. From the linker's point of view, each csect must be | |
1192 | considered a section in its own right. For example, a TOC entry is | |
1193 | handled as a small XMC_TC csect. The linker must be able to merge | |
1194 | different TOC entries together, which means that it must be able to | |
1195 | extract the XMC_TC csects from the .data section of the input .o | |
1196 | file. | |
1197 | ||
1198 | From the point of view of our linker, this is, of course, a hideous | |
1199 | nightmare. We cope by actually creating sections for each csect, | |
1200 | and discarding the original sections. We then have to handle the | |
1201 | relocation entries carefully, since the only way to tell which | |
1202 | csect they belong to is to examine the address. */ | |
1203 | ||
b34976b6 | 1204 | static bfd_boolean |
116c20d2 | 1205 | xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1206 | { |
1207 | unsigned int n_tmask; | |
1208 | unsigned int n_btshft; | |
b34976b6 | 1209 | bfd_boolean default_copy; |
252b5132 RH |
1210 | bfd_size_type symcount; |
1211 | struct xcoff_link_hash_entry **sym_hash; | |
1212 | asection **csect_cache; | |
3df13c4a | 1213 | unsigned int *lineno_counts; |
252b5132 RH |
1214 | bfd_size_type linesz; |
1215 | asection *o; | |
1216 | asection *last_real; | |
b34976b6 | 1217 | bfd_boolean keep_syms; |
252b5132 RH |
1218 | asection *csect; |
1219 | unsigned int csect_index; | |
1220 | asection *first_csect; | |
1221 | bfd_size_type symesz; | |
1222 | bfd_byte *esym; | |
1223 | bfd_byte *esym_end; | |
dc810e39 | 1224 | struct reloc_info_struct |
beb1bf64 TR |
1225 | { |
1226 | struct internal_reloc *relocs; | |
1227 | asection **csects; | |
1228 | bfd_byte *linenos; | |
1229 | } *reloc_info = NULL; | |
dc810e39 | 1230 | bfd_size_type amt; |
252b5132 RH |
1231 | |
1232 | keep_syms = obj_coff_keep_syms (abfd); | |
1233 | ||
1234 | if ((abfd->flags & DYNAMIC) != 0 | |
dc810e39 AM |
1235 | && ! info->static_link) |
1236 | { | |
1237 | if (! xcoff_link_add_dynamic_symbols (abfd, info)) | |
b34976b6 | 1238 | return FALSE; |
252b5132 RH |
1239 | } |
1240 | ||
116c20d2 | 1241 | /* Create the loader, toc, gl, ds and debug sections, if needed. */ |
b34976b6 | 1242 | if (! xcoff_link_create_extra_sections (abfd, info)) |
69f284c7 | 1243 | goto error_return; |
252b5132 RH |
1244 | |
1245 | if ((abfd->flags & DYNAMIC) != 0 | |
1246 | && ! info->static_link) | |
b34976b6 | 1247 | return TRUE; |
252b5132 RH |
1248 | |
1249 | n_tmask = coff_data (abfd)->local_n_tmask; | |
1250 | n_btshft = coff_data (abfd)->local_n_btshft; | |
1251 | ||
1252 | /* Define macros so that ISFCN, et. al., macros work correctly. */ | |
1253 | #define N_TMASK n_tmask | |
1254 | #define N_BTSHFT n_btshft | |
1255 | ||
1256 | if (info->keep_memory) | |
b34976b6 | 1257 | default_copy = FALSE; |
252b5132 | 1258 | else |
b34976b6 | 1259 | default_copy = TRUE; |
252b5132 | 1260 | |
dc810e39 | 1261 | symcount = obj_raw_syment_count (abfd); |
252b5132 RH |
1262 | |
1263 | /* We keep a list of the linker hash table entries that correspond | |
1264 | to each external symbol. */ | |
dc810e39 | 1265 | amt = symcount * sizeof (struct xcoff_link_hash_entry *); |
116c20d2 | 1266 | sym_hash = bfd_zalloc (abfd, amt); |
252b5132 RH |
1267 | if (sym_hash == NULL && symcount != 0) |
1268 | goto error_return; | |
1269 | coff_data (abfd)->sym_hashes = (struct coff_link_hash_entry **) sym_hash; | |
252b5132 RH |
1270 | |
1271 | /* Because of the weird stuff we are doing with XCOFF csects, we can | |
1272 | not easily determine which section a symbol is in, so we store | |
1273 | the information in the tdata for the input file. */ | |
dc810e39 | 1274 | amt = symcount * sizeof (asection *); |
116c20d2 | 1275 | csect_cache = bfd_zalloc (abfd, amt); |
252b5132 RH |
1276 | if (csect_cache == NULL && symcount != 0) |
1277 | goto error_return; | |
1278 | xcoff_data (abfd)->csects = csect_cache; | |
252b5132 | 1279 | |
3df13c4a RS |
1280 | /* We garbage-collect line-number information on a symbol-by-symbol |
1281 | basis, so we need to have quick access to the number of entries | |
1282 | per symbol. */ | |
1283 | amt = symcount * sizeof (unsigned int); | |
1284 | lineno_counts = bfd_zalloc (abfd, amt); | |
1285 | if (lineno_counts == NULL && symcount != 0) | |
1286 | goto error_return; | |
1287 | xcoff_data (abfd)->lineno_counts = lineno_counts; | |
1288 | ||
252b5132 RH |
1289 | /* While splitting sections into csects, we need to assign the |
1290 | relocs correctly. The relocs and the csects must both be in | |
1291 | order by VMA within a given section, so we handle this by | |
1292 | scanning along the relocs as we process the csects. We index | |
1293 | into reloc_info using the section target_index. */ | |
dc810e39 AM |
1294 | amt = abfd->section_count + 1; |
1295 | amt *= sizeof (struct reloc_info_struct); | |
116c20d2 | 1296 | reloc_info = bfd_zmalloc (amt); |
252b5132 RH |
1297 | if (reloc_info == NULL) |
1298 | goto error_return; | |
252b5132 RH |
1299 | |
1300 | /* Read in the relocs and line numbers for each section. */ | |
1301 | linesz = bfd_coff_linesz (abfd); | |
1302 | last_real = NULL; | |
dc810e39 AM |
1303 | for (o = abfd->sections; o != NULL; o = o->next) |
1304 | { | |
dc810e39 | 1305 | last_real = o; |
116c20d2 | 1306 | |
dc810e39 AM |
1307 | if ((o->flags & SEC_RELOC) != 0) |
1308 | { | |
dc810e39 | 1309 | reloc_info[o->target_index].relocs = |
116c20d2 | 1310 | xcoff_read_internal_relocs (abfd, o, TRUE, NULL, FALSE, NULL); |
dc810e39 AM |
1311 | amt = o->reloc_count; |
1312 | amt *= sizeof (asection *); | |
116c20d2 | 1313 | reloc_info[o->target_index].csects = bfd_zmalloc (amt); |
dc810e39 AM |
1314 | if (reloc_info[o->target_index].csects == NULL) |
1315 | goto error_return; | |
dc810e39 | 1316 | } |
beb1bf64 | 1317 | |
dc810e39 AM |
1318 | if ((info->strip == strip_none || info->strip == strip_some) |
1319 | && o->lineno_count > 0) | |
1320 | { | |
dc810e39 AM |
1321 | bfd_byte *linenos; |
1322 | ||
1323 | amt = linesz * o->lineno_count; | |
116c20d2 | 1324 | linenos = bfd_malloc (amt); |
dc810e39 AM |
1325 | if (linenos == NULL) |
1326 | goto error_return; | |
1327 | reloc_info[o->target_index].linenos = linenos; | |
1328 | if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0 | |
1329 | || bfd_bread (linenos, amt, abfd) != amt) | |
1330 | goto error_return; | |
dc810e39 | 1331 | } |
252b5132 | 1332 | } |
beb1bf64 | 1333 | |
252b5132 | 1334 | /* Don't let the linker relocation routines discard the symbols. */ |
b34976b6 | 1335 | obj_coff_keep_syms (abfd) = TRUE; |
252b5132 RH |
1336 | |
1337 | csect = NULL; | |
1338 | csect_index = 0; | |
1339 | first_csect = NULL; | |
1340 | ||
1341 | symesz = bfd_coff_symesz (abfd); | |
1342 | BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)); | |
1343 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
1344 | esym_end = esym + symcount * symesz; | |
252b5132 | 1345 | |
dc810e39 AM |
1346 | while (esym < esym_end) |
1347 | { | |
1348 | struct internal_syment sym; | |
1349 | union internal_auxent aux; | |
1350 | const char *name; | |
1351 | char buf[SYMNMLEN + 1]; | |
1352 | int smtyp; | |
dc810e39 AM |
1353 | asection *section; |
1354 | bfd_vma value; | |
1355 | struct xcoff_link_hash_entry *set_toc; | |
252b5132 | 1356 | |
116c20d2 | 1357 | bfd_coff_swap_sym_in (abfd, (void *) esym, (void *) &sym); |
dc810e39 AM |
1358 | |
1359 | /* In this pass we are only interested in symbols with csect | |
1360 | information. */ | |
8602d4fe | 1361 | if (!CSECT_SYM_P (sym.n_sclass)) |
dc810e39 | 1362 | { |
dc810e39 AM |
1363 | /* Set csect_cache, |
1364 | Normally csect is a .pr, .rw etc. created in the loop | |
1365 | If C_FILE or first time, handle special | |
252b5132 | 1366 | |
4cc02a02 RS |
1367 | Advance esym, sym_hash, csect_hash ptrs. */ |
1368 | if (sym.n_sclass == C_FILE) | |
1369 | csect = NULL; | |
dc810e39 AM |
1370 | if (csect != NULL) |
1371 | *csect_cache = csect; | |
1372 | else if (first_csect == NULL || sym.n_sclass == C_FILE) | |
1373 | *csect_cache = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
1374 | else | |
1375 | *csect_cache = NULL; | |
1376 | esym += (sym.n_numaux + 1) * symesz; | |
1377 | sym_hash += sym.n_numaux + 1; | |
1378 | csect_cache += sym.n_numaux + 1; | |
3df13c4a | 1379 | lineno_counts += sym.n_numaux + 1; |
dc810e39 AM |
1380 | |
1381 | continue; | |
1382 | } | |
1383 | ||
1384 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); | |
1385 | ||
1386 | if (name == NULL) | |
1387 | goto error_return; | |
252b5132 RH |
1388 | |
1389 | /* If this symbol has line number information attached to it, | |
b34976b6 AM |
1390 | and we're not stripping it, count the number of entries and |
1391 | add them to the count for this csect. In the final link pass | |
1392 | we are going to attach line number information by symbol, | |
1393 | rather than by section, in order to more easily handle | |
1394 | garbage collection. */ | |
dc810e39 AM |
1395 | if ((info->strip == strip_none || info->strip == strip_some) |
1396 | && sym.n_numaux > 1 | |
1397 | && csect != NULL | |
1398 | && ISFCN (sym.n_type)) | |
1399 | { | |
dc810e39 | 1400 | union internal_auxent auxlin; |
252b5132 | 1401 | |
116c20d2 | 1402 | bfd_coff_swap_aux_in (abfd, (void *) (esym + symesz), |
dc810e39 | 1403 | sym.n_type, sym.n_sclass, |
116c20d2 | 1404 | 0, sym.n_numaux, (void *) &auxlin); |
dc810e39 AM |
1405 | |
1406 | if (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) | |
1407 | { | |
1408 | asection *enclosing; | |
1409 | bfd_signed_vma linoff; | |
1410 | ||
1411 | enclosing = xcoff_section_data (abfd, csect)->enclosing; | |
1412 | if (enclosing == NULL) | |
1413 | { | |
1414 | (*_bfd_error_handler) | |
d003868e AM |
1415 | (_("%B: `%s' has line numbers but no enclosing section"), |
1416 | abfd, name); | |
dc810e39 AM |
1417 | bfd_set_error (bfd_error_bad_value); |
1418 | goto error_return; | |
1419 | } | |
1420 | linoff = (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr | |
1421 | - enclosing->line_filepos); | |
116c20d2 | 1422 | /* Explicit cast to bfd_signed_vma for compiler. */ |
dc810e39 AM |
1423 | if (linoff < (bfd_signed_vma) (enclosing->lineno_count * linesz)) |
1424 | { | |
1425 | struct internal_lineno lin; | |
1426 | bfd_byte *linpstart; | |
1427 | ||
1428 | linpstart = (reloc_info[enclosing->target_index].linenos | |
1429 | + linoff); | |
116c20d2 | 1430 | bfd_coff_swap_lineno_in (abfd, (void *) linpstart, (void *) &lin); |
dc810e39 AM |
1431 | if (lin.l_lnno == 0 |
1432 | && ((bfd_size_type) lin.l_addr.l_symndx | |
1433 | == ((esym | |
1434 | - (bfd_byte *) obj_coff_external_syms (abfd)) | |
1435 | / symesz))) | |
1436 | { | |
1437 | bfd_byte *linpend, *linp; | |
1438 | ||
1439 | linpend = (reloc_info[enclosing->target_index].linenos | |
1440 | + enclosing->lineno_count * linesz); | |
1441 | for (linp = linpstart + linesz; | |
1442 | linp < linpend; | |
1443 | linp += linesz) | |
1444 | { | |
116c20d2 NC |
1445 | bfd_coff_swap_lineno_in (abfd, (void *) linp, |
1446 | (void *) &lin); | |
dc810e39 AM |
1447 | if (lin.l_lnno == 0) |
1448 | break; | |
1449 | } | |
3df13c4a | 1450 | *lineno_counts = (linp - linpstart) / linesz; |
dc810e39 AM |
1451 | /* The setting of line_filepos will only be |
1452 | useful if all the line number entries for a | |
1453 | csect are contiguous; this only matters for | |
1454 | error reporting. */ | |
1455 | if (csect->line_filepos == 0) | |
1456 | csect->line_filepos = | |
1457 | auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
1458 | } | |
1459 | } | |
beb1bf64 | 1460 | } |
beb1bf64 | 1461 | } |
252b5132 | 1462 | |
dc810e39 | 1463 | /* Pick up the csect auxiliary information. */ |
dc810e39 AM |
1464 | if (sym.n_numaux == 0) |
1465 | { | |
1466 | (*_bfd_error_handler) | |
d003868e AM |
1467 | (_("%B: class %d symbol `%s' has no aux entries"), |
1468 | abfd, sym.n_sclass, name); | |
dc810e39 AM |
1469 | bfd_set_error (bfd_error_bad_value); |
1470 | goto error_return; | |
1471 | } | |
beb1bf64 | 1472 | |
dc810e39 | 1473 | bfd_coff_swap_aux_in (abfd, |
116c20d2 | 1474 | (void *) (esym + symesz * sym.n_numaux), |
dc810e39 | 1475 | sym.n_type, sym.n_sclass, |
252b5132 | 1476 | sym.n_numaux - 1, sym.n_numaux, |
116c20d2 | 1477 | (void *) &aux); |
252b5132 RH |
1478 | |
1479 | smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp); | |
1480 | ||
252b5132 RH |
1481 | section = NULL; |
1482 | value = 0; | |
1483 | set_toc = NULL; | |
1484 | ||
1485 | switch (smtyp) | |
1486 | { | |
1487 | default: | |
1488 | (*_bfd_error_handler) | |
d003868e AM |
1489 | (_("%B: symbol `%s' has unrecognized csect type %d"), |
1490 | abfd, name, smtyp); | |
252b5132 RH |
1491 | bfd_set_error (bfd_error_bad_value); |
1492 | goto error_return; | |
1493 | ||
1494 | case XTY_ER: | |
1495 | /* This is an external reference. */ | |
1496 | if (sym.n_sclass == C_HIDEXT | |
1497 | || sym.n_scnum != N_UNDEF | |
1498 | || aux.x_csect.x_scnlen.l != 0) | |
1499 | { | |
1500 | (*_bfd_error_handler) | |
d003868e AM |
1501 | (_("%B: bad XTY_ER symbol `%s': class %d scnum %d scnlen %d"), |
1502 | abfd, name, sym.n_sclass, sym.n_scnum, | |
252b5132 RH |
1503 | aux.x_csect.x_scnlen.l); |
1504 | bfd_set_error (bfd_error_bad_value); | |
1505 | goto error_return; | |
1506 | } | |
1507 | ||
1508 | /* An XMC_XO external reference is actually a reference to | |
b34976b6 | 1509 | an absolute location. */ |
252b5132 RH |
1510 | if (aux.x_csect.x_smclas != XMC_XO) |
1511 | section = bfd_und_section_ptr; | |
1512 | else | |
1513 | { | |
1514 | section = bfd_abs_section_ptr; | |
1515 | value = sym.n_value; | |
1516 | } | |
1517 | break; | |
1518 | ||
1519 | case XTY_SD: | |
252b5132 | 1520 | csect = NULL; |
dc810e39 | 1521 | csect_index = -(unsigned) 1; |
252b5132 RH |
1522 | |
1523 | /* When we see a TOC anchor, we record the TOC value. */ | |
1524 | if (aux.x_csect.x_smclas == XMC_TC0) | |
1525 | { | |
1526 | if (sym.n_sclass != C_HIDEXT | |
1527 | || aux.x_csect.x_scnlen.l != 0) | |
1528 | { | |
1529 | (*_bfd_error_handler) | |
d003868e AM |
1530 | (_("%B: XMC_TC0 symbol `%s' is class %d scnlen %d"), |
1531 | abfd, name, sym.n_sclass, aux.x_csect.x_scnlen.l); | |
252b5132 RH |
1532 | bfd_set_error (bfd_error_bad_value); |
1533 | goto error_return; | |
1534 | } | |
1535 | xcoff_data (abfd)->toc = sym.n_value; | |
1536 | } | |
1537 | ||
dc810e39 AM |
1538 | /* We must merge TOC entries for the same symbol. We can |
1539 | merge two TOC entries if they are both C_HIDEXT, they | |
1540 | both have the same name, they are both 4 or 8 bytes long, and | |
1541 | they both have a relocation table entry for an external | |
1542 | symbol with the same name. Unfortunately, this means | |
1543 | that we must look through the relocations. Ick. | |
1544 | ||
1545 | Logic for 32 bit vs 64 bit. | |
1546 | 32 bit has a csect length of 4 for TOC | |
1547 | 64 bit has a csect length of 8 for TOC | |
1548 | ||
1549 | The conditions to get past the if-check are not that bad. | |
1550 | They are what is used to create the TOC csects in the first | |
1551 | place. */ | |
1552 | if (aux.x_csect.x_smclas == XMC_TC | |
1553 | && sym.n_sclass == C_HIDEXT | |
f13a99db | 1554 | && info->output_bfd->xvec == abfd->xvec |
dc810e39 AM |
1555 | && ((bfd_xcoff_is_xcoff32 (abfd) |
1556 | && aux.x_csect.x_scnlen.l == 4) | |
1557 | || (bfd_xcoff_is_xcoff64 (abfd) | |
1558 | && aux.x_csect.x_scnlen.l == 8))) | |
1559 | { | |
1560 | asection *enclosing; | |
1561 | struct internal_reloc *relocs; | |
1562 | bfd_size_type relindx; | |
1563 | struct internal_reloc *rel; | |
252b5132 | 1564 | |
dc810e39 AM |
1565 | enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum); |
1566 | if (enclosing == NULL) | |
1567 | goto error_return; | |
252b5132 | 1568 | |
dc810e39 AM |
1569 | relocs = reloc_info[enclosing->target_index].relocs; |
1570 | amt = enclosing->reloc_count; | |
1571 | relindx = xcoff_find_reloc (relocs, amt, sym.n_value); | |
1572 | rel = relocs + relindx; | |
252b5132 | 1573 | |
dc810e39 AM |
1574 | /* 32 bit R_POS r_size is 31 |
1575 | 64 bit R_POS r_size is 63 */ | |
1576 | if (relindx < enclosing->reloc_count | |
1577 | && rel->r_vaddr == (bfd_vma) sym.n_value | |
1578 | && rel->r_type == R_POS | |
1579 | && ((bfd_xcoff_is_xcoff32 (abfd) | |
1580 | && rel->r_size == 31) | |
1581 | || (bfd_xcoff_is_xcoff64 (abfd) | |
1582 | && rel->r_size == 63))) | |
1583 | { | |
1584 | bfd_byte *erelsym; | |
1585 | ||
1586 | struct internal_syment relsym; | |
1587 | ||
1588 | erelsym = ((bfd_byte *) obj_coff_external_syms (abfd) | |
1589 | + rel->r_symndx * symesz); | |
116c20d2 | 1590 | bfd_coff_swap_sym_in (abfd, (void *) erelsym, (void *) &relsym); |
8602d4fe | 1591 | if (EXTERN_SYM_P (relsym.n_sclass)) |
dc810e39 AM |
1592 | { |
1593 | const char *relname; | |
1594 | char relbuf[SYMNMLEN + 1]; | |
b34976b6 | 1595 | bfd_boolean copy; |
dc810e39 AM |
1596 | struct xcoff_link_hash_entry *h; |
1597 | ||
1598 | /* At this point we know that the TOC entry is | |
1599 | for an externally visible symbol. */ | |
dc810e39 AM |
1600 | relname = _bfd_coff_internal_syment_name (abfd, &relsym, |
1601 | relbuf); | |
1602 | if (relname == NULL) | |
1603 | goto error_return; | |
1604 | ||
1605 | /* We only merge TOC entries if the TC name is | |
1606 | the same as the symbol name. This handles | |
1607 | the normal case, but not common cases like | |
1608 | SYM.P4 which gcc generates to store SYM + 4 | |
1609 | in the TOC. FIXME. */ | |
dc810e39 AM |
1610 | if (strcmp (name, relname) == 0) |
1611 | { | |
1612 | copy = (! info->keep_memory | |
1613 | || relsym._n._n_n._n_zeroes != 0 | |
1614 | || relsym._n._n_n._n_offset == 0); | |
1615 | h = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
b34976b6 AM |
1616 | relname, TRUE, copy, |
1617 | FALSE); | |
dc810e39 AM |
1618 | if (h == NULL) |
1619 | goto error_return; | |
1620 | ||
1621 | /* At this point h->root.type could be | |
1622 | bfd_link_hash_new. That should be OK, | |
1623 | since we know for sure that we will come | |
1624 | across this symbol as we step through the | |
1625 | file. */ | |
1626 | ||
1627 | /* We store h in *sym_hash for the | |
1628 | convenience of the relocate_section | |
1629 | function. */ | |
1630 | *sym_hash = h; | |
1631 | ||
1632 | if (h->toc_section != NULL) | |
1633 | { | |
1634 | asection **rel_csects; | |
1635 | ||
1636 | /* We already have a TOC entry for this | |
1637 | symbol, so we can just ignore this | |
1638 | one. */ | |
1639 | rel_csects = | |
1640 | reloc_info[enclosing->target_index].csects; | |
1641 | rel_csects[relindx] = bfd_und_section_ptr; | |
1642 | break; | |
1643 | } | |
1644 | ||
1645 | /* We are about to create a TOC entry for | |
1646 | this symbol. */ | |
1647 | set_toc = h; | |
116c20d2 NC |
1648 | } |
1649 | } | |
1650 | } | |
1651 | } | |
252b5132 | 1652 | |
252b5132 | 1653 | { |
252b5132 RH |
1654 | asection *enclosing; |
1655 | ||
beb1bf64 TR |
1656 | /* We need to create a new section. We get the name from |
1657 | the csect storage mapping class, so that the linker can | |
1658 | accumulate similar csects together. */ | |
252b5132 | 1659 | |
beb1bf64 | 1660 | csect = bfd_xcoff_create_csect_from_smclas(abfd, &aux, name); |
dc810e39 | 1661 | if (NULL == csect) |
116c20d2 | 1662 | goto error_return; |
beb1bf64 | 1663 | |
dc810e39 AM |
1664 | /* The enclosing section is the main section : .data, .text |
1665 | or .bss that the csect is coming from. */ | |
252b5132 RH |
1666 | enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum); |
1667 | if (enclosing == NULL) | |
1668 | goto error_return; | |
beb1bf64 | 1669 | |
dc810e39 AM |
1670 | if (! bfd_is_abs_section (enclosing) |
1671 | && ((bfd_vma) sym.n_value < enclosing->vma | |
1672 | || ((bfd_vma) sym.n_value + aux.x_csect.x_scnlen.l | |
eea6121a | 1673 | > enclosing->vma + enclosing->size))) |
dc810e39 AM |
1674 | { |
1675 | (*_bfd_error_handler) | |
d003868e AM |
1676 | (_("%B: csect `%s' not in enclosing section"), |
1677 | abfd, name); | |
dc810e39 AM |
1678 | bfd_set_error (bfd_error_bad_value); |
1679 | goto error_return; | |
1680 | } | |
252b5132 RH |
1681 | csect->vma = sym.n_value; |
1682 | csect->filepos = (enclosing->filepos | |
1683 | + sym.n_value | |
1684 | - enclosing->vma); | |
eea6121a | 1685 | csect->size = aux.x_csect.x_scnlen.l; |
252b5132 RH |
1686 | csect->flags |= SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS; |
1687 | csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp); | |
1688 | ||
1689 | /* Record the enclosing section in the tdata for this new | |
1690 | section. */ | |
dc810e39 | 1691 | amt = sizeof (struct coff_section_tdata); |
116c20d2 | 1692 | csect->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
1693 | if (csect->used_by_bfd == NULL) |
1694 | goto error_return; | |
dc810e39 AM |
1695 | amt = sizeof (struct xcoff_section_tdata); |
1696 | coff_section_data (abfd, csect)->tdata = bfd_zalloc (abfd, amt); | |
252b5132 RH |
1697 | if (coff_section_data (abfd, csect)->tdata == NULL) |
1698 | goto error_return; | |
1699 | xcoff_section_data (abfd, csect)->enclosing = enclosing; | |
1700 | xcoff_section_data (abfd, csect)->lineno_count = | |
1701 | enclosing->lineno_count; | |
1702 | ||
dc810e39 AM |
1703 | if (enclosing->owner == abfd) |
1704 | { | |
1705 | struct internal_reloc *relocs; | |
1706 | bfd_size_type relindx; | |
1707 | struct internal_reloc *rel; | |
1708 | asection **rel_csect; | |
1709 | ||
1710 | relocs = reloc_info[enclosing->target_index].relocs; | |
1711 | amt = enclosing->reloc_count; | |
1712 | relindx = xcoff_find_reloc (relocs, amt, csect->vma); | |
1713 | ||
1714 | rel = relocs + relindx; | |
1715 | rel_csect = (reloc_info[enclosing->target_index].csects | |
1716 | + relindx); | |
1717 | ||
1718 | csect->rel_filepos = (enclosing->rel_filepos | |
1719 | + relindx * bfd_coff_relsz (abfd)); | |
1720 | while (relindx < enclosing->reloc_count | |
1721 | && *rel_csect == NULL | |
eea6121a | 1722 | && rel->r_vaddr < csect->vma + csect->size) |
dc810e39 | 1723 | { |
beb1bf64 | 1724 | |
dc810e39 AM |
1725 | *rel_csect = csect; |
1726 | csect->flags |= SEC_RELOC; | |
1727 | ++csect->reloc_count; | |
1728 | ++relindx; | |
1729 | ++rel; | |
1730 | ++rel_csect; | |
1731 | } | |
252b5132 RH |
1732 | } |
1733 | ||
1734 | /* There are a number of other fields and section flags | |
1735 | which we do not bother to set. */ | |
1736 | ||
1737 | csect_index = ((esym | |
1738 | - (bfd_byte *) obj_coff_external_syms (abfd)) | |
1739 | / symesz); | |
1740 | ||
1741 | xcoff_section_data (abfd, csect)->first_symndx = csect_index; | |
1742 | ||
1743 | if (first_csect == NULL) | |
1744 | first_csect = csect; | |
1745 | ||
8602d4fe | 1746 | /* If this symbol is external, we treat it as starting at the |
252b5132 | 1747 | beginning of the newly created section. */ |
8602d4fe | 1748 | if (EXTERN_SYM_P (sym.n_sclass)) |
252b5132 RH |
1749 | { |
1750 | section = csect; | |
1751 | value = 0; | |
1752 | } | |
1753 | ||
1754 | /* If this is a TOC section for a symbol, record it. */ | |
1755 | if (set_toc != NULL) | |
1756 | set_toc->toc_section = csect; | |
1757 | } | |
1758 | break; | |
1759 | ||
1760 | case XTY_LD: | |
1761 | /* This is a label definition. The x_scnlen field is the | |
dc810e39 | 1762 | symbol index of the csect. Usually the XTY_LD symbol will |
8df8c619 TR |
1763 | follow its appropriate XTY_SD symbol. The .set pseudo op can |
1764 | cause the XTY_LD to not follow the XTY_SD symbol. */ | |
252b5132 | 1765 | { |
b34976b6 | 1766 | bfd_boolean bad; |
252b5132 | 1767 | |
b34976b6 | 1768 | bad = FALSE; |
252b5132 RH |
1769 | if (aux.x_csect.x_scnlen.l < 0 |
1770 | || (aux.x_csect.x_scnlen.l | |
1771 | >= esym - (bfd_byte *) obj_coff_external_syms (abfd))) | |
b34976b6 | 1772 | bad = TRUE; |
252b5132 RH |
1773 | if (! bad) |
1774 | { | |
1775 | section = xcoff_data (abfd)->csects[aux.x_csect.x_scnlen.l]; | |
1776 | if (section == NULL | |
1777 | || (section->flags & SEC_HAS_CONTENTS) == 0) | |
b34976b6 | 1778 | bad = TRUE; |
252b5132 RH |
1779 | } |
1780 | if (bad) | |
1781 | { | |
1782 | (*_bfd_error_handler) | |
d003868e AM |
1783 | (_("%B: misplaced XTY_LD `%s'"), |
1784 | abfd, name); | |
252b5132 RH |
1785 | bfd_set_error (bfd_error_bad_value); |
1786 | goto error_return; | |
1787 | } | |
8df8c619 | 1788 | csect = section; |
252b5132 RH |
1789 | value = sym.n_value - csect->vma; |
1790 | } | |
1791 | break; | |
1792 | ||
1793 | case XTY_CM: | |
1794 | /* This is an unitialized csect. We could base the name on | |
b34976b6 AM |
1795 | the storage mapping class, but we don't bother except for |
1796 | an XMC_TD symbol. If this csect is externally visible, | |
1797 | it is a common symbol. We put XMC_TD symbols in sections | |
1798 | named .tocbss, and rely on the linker script to put that | |
1799 | in the TOC area. */ | |
252b5132 | 1800 | |
dc810e39 AM |
1801 | if (aux.x_csect.x_smclas == XMC_TD) |
1802 | { | |
1803 | /* The linker script puts the .td section in the data | |
1804 | section after the .tc section. */ | |
117ed4f8 AM |
1805 | csect = bfd_make_section_anyway_with_flags (abfd, ".td", |
1806 | SEC_ALLOC); | |
dc810e39 AM |
1807 | } |
1808 | else | |
117ed4f8 AM |
1809 | csect = bfd_make_section_anyway_with_flags (abfd, ".bss", |
1810 | SEC_ALLOC); | |
116c20d2 | 1811 | |
252b5132 RH |
1812 | if (csect == NULL) |
1813 | goto error_return; | |
1814 | csect->vma = sym.n_value; | |
eea6121a | 1815 | csect->size = aux.x_csect.x_scnlen.l; |
252b5132 RH |
1816 | csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp); |
1817 | /* There are a number of other fields and section flags | |
1818 | which we do not bother to set. */ | |
1819 | ||
1820 | csect_index = ((esym | |
1821 | - (bfd_byte *) obj_coff_external_syms (abfd)) | |
1822 | / symesz); | |
1823 | ||
dc810e39 | 1824 | amt = sizeof (struct coff_section_tdata); |
116c20d2 | 1825 | csect->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
1826 | if (csect->used_by_bfd == NULL) |
1827 | goto error_return; | |
dc810e39 AM |
1828 | amt = sizeof (struct xcoff_section_tdata); |
1829 | coff_section_data (abfd, csect)->tdata = bfd_zalloc (abfd, amt); | |
252b5132 RH |
1830 | if (coff_section_data (abfd, csect)->tdata == NULL) |
1831 | goto error_return; | |
1832 | xcoff_section_data (abfd, csect)->first_symndx = csect_index; | |
1833 | ||
1834 | if (first_csect == NULL) | |
1835 | first_csect = csect; | |
1836 | ||
8602d4fe | 1837 | if (EXTERN_SYM_P (sym.n_sclass)) |
252b5132 RH |
1838 | { |
1839 | csect->flags |= SEC_IS_COMMON; | |
eea6121a | 1840 | csect->size = 0; |
252b5132 RH |
1841 | section = csect; |
1842 | value = aux.x_csect.x_scnlen.l; | |
1843 | } | |
1844 | ||
1845 | break; | |
1846 | } | |
1847 | ||
1848 | /* Check for magic symbol names. */ | |
dc810e39 AM |
1849 | if ((smtyp == XTY_SD || smtyp == XTY_CM) |
1850 | && aux.x_csect.x_smclas != XMC_TC | |
1851 | && aux.x_csect.x_smclas != XMC_TD) | |
1852 | { | |
dc810e39 AM |
1853 | int i = -1; |
1854 | ||
1855 | if (name[0] == '_') | |
1856 | { | |
1857 | if (strcmp (name, "_text") == 0) | |
1858 | i = XCOFF_SPECIAL_SECTION_TEXT; | |
1859 | else if (strcmp (name, "_etext") == 0) | |
1860 | i = XCOFF_SPECIAL_SECTION_ETEXT; | |
1861 | else if (strcmp (name, "_data") == 0) | |
1862 | i = XCOFF_SPECIAL_SECTION_DATA; | |
1863 | else if (strcmp (name, "_edata") == 0) | |
1864 | i = XCOFF_SPECIAL_SECTION_EDATA; | |
1865 | else if (strcmp (name, "_end") == 0) | |
1866 | i = XCOFF_SPECIAL_SECTION_END; | |
1867 | } | |
1868 | else if (name[0] == 'e' && strcmp (name, "end") == 0) | |
116c20d2 | 1869 | i = XCOFF_SPECIAL_SECTION_END2; |
dc810e39 AM |
1870 | |
1871 | if (i != -1) | |
116c20d2 | 1872 | xcoff_hash_table (info)->special_sections[i] = csect; |
dc810e39 | 1873 | } |
252b5132 RH |
1874 | |
1875 | /* Now we have enough information to add the symbol to the | |
b34976b6 | 1876 | linker hash table. */ |
252b5132 | 1877 | |
8602d4fe | 1878 | if (EXTERN_SYM_P (sym.n_sclass)) |
252b5132 | 1879 | { |
b34976b6 | 1880 | bfd_boolean copy; |
8602d4fe | 1881 | flagword flags; |
252b5132 RH |
1882 | |
1883 | BFD_ASSERT (section != NULL); | |
1884 | ||
1885 | /* We must copy the name into memory if we got it from the | |
b34976b6 | 1886 | syment itself, rather than the string table. */ |
252b5132 RH |
1887 | copy = default_copy; |
1888 | if (sym._n._n_n._n_zeroes != 0 | |
1889 | || sym._n._n_n._n_offset == 0) | |
b34976b6 | 1890 | copy = TRUE; |
252b5132 | 1891 | |
94313f36 RS |
1892 | /* Ignore global linkage code when linking statically. */ |
1893 | if (info->static_link | |
1894 | && (smtyp == XTY_SD || smtyp == XTY_LD) | |
1895 | && aux.x_csect.x_smclas == XMC_GL) | |
1896 | { | |
1897 | section = bfd_und_section_ptr; | |
1898 | value = 0; | |
1899 | } | |
1900 | ||
252b5132 RH |
1901 | /* The AIX linker appears to only detect multiple symbol |
1902 | definitions when there is a reference to the symbol. If | |
1903 | a symbol is defined multiple times, and the only | |
1904 | references are from the same object file, the AIX linker | |
1905 | appears to permit it. It does not merge the different | |
1906 | definitions, but handles them independently. On the | |
1907 | other hand, if there is a reference, the linker reports | |
1908 | an error. | |
1909 | ||
1910 | This matters because the AIX <net/net_globals.h> header | |
1911 | file actually defines an initialized array, so we have to | |
1912 | actually permit that to work. | |
1913 | ||
1914 | Just to make matters even more confusing, the AIX linker | |
1915 | appears to permit multiple symbol definitions whenever | |
1916 | the second definition is in an archive rather than an | |
1917 | object file. This may be a consequence of the manner in | |
1918 | which it handles archives: I think it may load the entire | |
1919 | archive in as separate csects, and then let garbage | |
1920 | collection discard symbols. | |
1921 | ||
1922 | We also have to handle the case of statically linking a | |
1923 | shared object, which will cause symbol redefinitions, | |
1924 | although this is an easier case to detect. */ | |
94313f36 | 1925 | else if (info->output_bfd->xvec == abfd->xvec) |
252b5132 RH |
1926 | { |
1927 | if (! bfd_is_und_section (section)) | |
116c20d2 NC |
1928 | *sym_hash = xcoff_link_hash_lookup (xcoff_hash_table (info), |
1929 | name, TRUE, copy, FALSE); | |
252b5132 | 1930 | else |
116c20d2 NC |
1931 | /* Make a copy of the symbol name to prevent problems with |
1932 | merging symbols. */ | |
1933 | *sym_hash = ((struct xcoff_link_hash_entry *) | |
1934 | bfd_wrapped_link_hash_lookup (abfd, info, name, | |
1935 | TRUE, TRUE, FALSE)); | |
1936 | ||
252b5132 RH |
1937 | if (*sym_hash == NULL) |
1938 | goto error_return; | |
1939 | if (((*sym_hash)->root.type == bfd_link_hash_defined | |
1940 | || (*sym_hash)->root.type == bfd_link_hash_defweak) | |
1941 | && ! bfd_is_und_section (section) | |
1942 | && ! bfd_is_com_section (section)) | |
1943 | { | |
1944 | /* This is a second definition of a defined symbol. */ | |
94313f36 RS |
1945 | if (((*sym_hash)->flags & XCOFF_DEF_REGULAR) == 0 |
1946 | && ((*sym_hash)->flags & XCOFF_DEF_DYNAMIC) != 0) | |
252b5132 RH |
1947 | { |
1948 | /* The existing symbol is from a shared library. | |
b34976b6 | 1949 | Replace it. */ |
252b5132 RH |
1950 | (*sym_hash)->root.type = bfd_link_hash_undefined; |
1951 | (*sym_hash)->root.u.undef.abfd = | |
1952 | (*sym_hash)->root.u.def.section->owner; | |
1953 | } | |
1954 | else if (abfd->my_archive != NULL) | |
1955 | { | |
1956 | /* This is a redefinition in an object contained | |
b34976b6 AM |
1957 | in an archive. Just ignore it. See the |
1958 | comment above. */ | |
252b5132 RH |
1959 | section = bfd_und_section_ptr; |
1960 | value = 0; | |
1961 | } | |
8602d4fe RS |
1962 | else if (sym.n_sclass == C_AIX_WEAKEXT |
1963 | || (*sym_hash)->root.type == bfd_link_hash_defweak) | |
1964 | { | |
1965 | /* At least one of the definitions is weak. | |
1966 | Allow the normal rules to take effect. */ | |
1967 | } | |
f6e332e6 | 1968 | else if ((*sym_hash)->root.u.undef.next != NULL |
252b5132 RH |
1969 | || info->hash->undefs_tail == &(*sym_hash)->root) |
1970 | { | |
1971 | /* This symbol has been referenced. In this | |
b34976b6 AM |
1972 | case, we just continue and permit the |
1973 | multiple definition error. See the comment | |
1974 | above about the behaviour of the AIX linker. */ | |
252b5132 RH |
1975 | } |
1976 | else if ((*sym_hash)->smclas == aux.x_csect.x_smclas) | |
1977 | { | |
1978 | /* The symbols are both csects of the same | |
b34976b6 AM |
1979 | class. There is at least a chance that this |
1980 | is a semi-legitimate redefinition. */ | |
252b5132 RH |
1981 | section = bfd_und_section_ptr; |
1982 | value = 0; | |
1983 | (*sym_hash)->flags |= XCOFF_MULTIPLY_DEFINED; | |
1984 | } | |
1985 | } | |
1986 | else if (((*sym_hash)->flags & XCOFF_MULTIPLY_DEFINED) != 0 | |
8602d4fe | 1987 | && (*sym_hash)->root.type == bfd_link_hash_defined |
252b5132 RH |
1988 | && (bfd_is_und_section (section) |
1989 | || bfd_is_com_section (section))) | |
1990 | { | |
1991 | /* This is a reference to a multiply defined symbol. | |
1992 | Report the error now. See the comment above | |
1993 | about the behaviour of the AIX linker. We could | |
1994 | also do this with warning symbols, but I'm not | |
1995 | sure the XCOFF linker is wholly prepared to | |
1996 | handle them, and that would only be a warning, | |
1997 | not an error. */ | |
1998 | if (! ((*info->callbacks->multiple_definition) | |
1999 | (info, (*sym_hash)->root.root.string, | |
116c20d2 | 2000 | NULL, NULL, (bfd_vma) 0, |
252b5132 RH |
2001 | (*sym_hash)->root.u.def.section->owner, |
2002 | (*sym_hash)->root.u.def.section, | |
2003 | (*sym_hash)->root.u.def.value))) | |
2004 | goto error_return; | |
2005 | /* Try not to give this error too many times. */ | |
2006 | (*sym_hash)->flags &= ~XCOFF_MULTIPLY_DEFINED; | |
2007 | } | |
2008 | } | |
2009 | ||
2010 | /* _bfd_generic_link_add_one_symbol may call the linker to | |
2011 | generate an error message, and the linker may try to read | |
2012 | the symbol table to give a good error. Right now, the | |
2013 | line numbers are in an inconsistent state, since they are | |
2014 | counted both in the real sections and in the new csects. | |
2015 | We need to leave the count in the real sections so that | |
2016 | the linker can report the line number of the error | |
2017 | correctly, so temporarily clobber the link to the csects | |
2018 | so that the linker will not try to read the line numbers | |
2019 | a second time from the csects. */ | |
2020 | BFD_ASSERT (last_real->next == first_csect); | |
2021 | last_real->next = NULL; | |
8602d4fe | 2022 | flags = (sym.n_sclass == C_EXT ? BSF_GLOBAL : BSF_WEAK); |
252b5132 RH |
2023 | if (! (_bfd_generic_link_add_one_symbol |
2024 | (info, abfd, name, flags, section, value, | |
116c20d2 | 2025 | NULL, copy, TRUE, |
252b5132 RH |
2026 | (struct bfd_link_hash_entry **) sym_hash))) |
2027 | goto error_return; | |
2028 | last_real->next = first_csect; | |
2029 | ||
2030 | if (smtyp == XTY_CM) | |
2031 | { | |
2032 | if ((*sym_hash)->root.type != bfd_link_hash_common | |
2033 | || (*sym_hash)->root.u.c.p->section != csect) | |
116c20d2 NC |
2034 | /* We don't need the common csect we just created. */ |
2035 | csect->size = 0; | |
252b5132 | 2036 | else |
116c20d2 NC |
2037 | (*sym_hash)->root.u.c.p->alignment_power |
2038 | = csect->alignment_power; | |
252b5132 RH |
2039 | } |
2040 | ||
f13a99db | 2041 | if (info->output_bfd->xvec == abfd->xvec) |
252b5132 RH |
2042 | { |
2043 | int flag; | |
2044 | ||
94313f36 RS |
2045 | if (smtyp == XTY_ER |
2046 | || smtyp == XTY_CM | |
2047 | || section == bfd_und_section_ptr) | |
252b5132 RH |
2048 | flag = XCOFF_REF_REGULAR; |
2049 | else | |
2050 | flag = XCOFF_DEF_REGULAR; | |
2051 | (*sym_hash)->flags |= flag; | |
2052 | ||
2053 | if ((*sym_hash)->smclas == XMC_UA | |
2054 | || flag == XCOFF_DEF_REGULAR) | |
2055 | (*sym_hash)->smclas = aux.x_csect.x_smclas; | |
2056 | } | |
2057 | } | |
2058 | ||
4cc02a02 RS |
2059 | if (smtyp == XTY_ER) |
2060 | *csect_cache = section; | |
2061 | else | |
2062 | { | |
2063 | *csect_cache = csect; | |
2064 | if (csect != NULL) | |
2065 | xcoff_section_data (abfd, csect)->last_symndx | |
2066 | = (esym - (bfd_byte *) obj_coff_external_syms (abfd)) / symesz; | |
2067 | } | |
252b5132 RH |
2068 | |
2069 | esym += (sym.n_numaux + 1) * symesz; | |
2070 | sym_hash += sym.n_numaux + 1; | |
2071 | csect_cache += sym.n_numaux + 1; | |
3df13c4a | 2072 | lineno_counts += sym.n_numaux + 1; |
252b5132 RH |
2073 | } |
2074 | ||
2075 | BFD_ASSERT (last_real == NULL || last_real->next == first_csect); | |
2076 | ||
2077 | /* Make sure that we have seen all the relocs. */ | |
2078 | for (o = abfd->sections; o != first_csect; o = o->next) | |
2079 | { | |
2080 | /* Reset the section size and the line number count, since the | |
2081 | data is now attached to the csects. Don't reset the size of | |
2082 | the .debug section, since we need to read it below in | |
2083 | bfd_xcoff_size_dynamic_sections. */ | |
2084 | if (strcmp (bfd_get_section_name (abfd, o), ".debug") != 0) | |
eea6121a | 2085 | o->size = 0; |
252b5132 RH |
2086 | o->lineno_count = 0; |
2087 | ||
2088 | if ((o->flags & SEC_RELOC) != 0) | |
2089 | { | |
2090 | bfd_size_type i; | |
2091 | struct internal_reloc *rel; | |
2092 | asection **rel_csect; | |
2093 | ||
2094 | rel = reloc_info[o->target_index].relocs; | |
2095 | rel_csect = reloc_info[o->target_index].csects; | |
beb1bf64 | 2096 | |
252b5132 RH |
2097 | for (i = 0; i < o->reloc_count; i++, rel++, rel_csect++) |
2098 | { | |
2099 | if (*rel_csect == NULL) | |
2100 | { | |
2101 | (*_bfd_error_handler) | |
d003868e AM |
2102 | (_("%B: reloc %s:%d not in csect"), |
2103 | abfd, o->name, i); | |
252b5132 RH |
2104 | bfd_set_error (bfd_error_bad_value); |
2105 | goto error_return; | |
2106 | } | |
2107 | ||
858ef0ce RS |
2108 | /* We identify all function symbols that are the target |
2109 | of a relocation, so that we can create glue code for | |
2110 | functions imported from dynamic objects. */ | |
f13a99db | 2111 | if (info->output_bfd->xvec == abfd->xvec |
252b5132 | 2112 | && *rel_csect != bfd_und_section_ptr |
252b5132 RH |
2113 | && obj_xcoff_sym_hashes (abfd)[rel->r_symndx] != NULL) |
2114 | { | |
2115 | struct xcoff_link_hash_entry *h; | |
2116 | ||
2117 | h = obj_xcoff_sym_hashes (abfd)[rel->r_symndx]; | |
252b5132 | 2118 | /* If the symbol name starts with a period, it is |
b34976b6 AM |
2119 | the code of a function. If the symbol is |
2120 | currently undefined, then add an undefined symbol | |
2121 | for the function descriptor. This should do no | |
2122 | harm, because any regular object that defines the | |
2123 | function should also define the function | |
2124 | descriptor. It helps, because it means that we | |
2125 | will identify the function descriptor with a | |
2126 | dynamic object if a dynamic object defines it. */ | |
252b5132 RH |
2127 | if (h->root.root.string[0] == '.' |
2128 | && h->descriptor == NULL) | |
2129 | { | |
2130 | struct xcoff_link_hash_entry *hds; | |
14a793b2 | 2131 | struct bfd_link_hash_entry *bh; |
252b5132 RH |
2132 | |
2133 | hds = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
2134 | h->root.root.string + 1, | |
b34976b6 | 2135 | TRUE, FALSE, TRUE); |
252b5132 RH |
2136 | if (hds == NULL) |
2137 | goto error_return; | |
2138 | if (hds->root.type == bfd_link_hash_new) | |
2139 | { | |
14a793b2 | 2140 | bh = &hds->root; |
252b5132 RH |
2141 | if (! (_bfd_generic_link_add_one_symbol |
2142 | (info, abfd, hds->root.root.string, | |
2143 | (flagword) 0, bfd_und_section_ptr, | |
116c20d2 | 2144 | (bfd_vma) 0, NULL, FALSE, |
b34976b6 | 2145 | TRUE, &bh))) |
252b5132 | 2146 | goto error_return; |
14a793b2 | 2147 | hds = (struct xcoff_link_hash_entry *) bh; |
252b5132 RH |
2148 | } |
2149 | hds->flags |= XCOFF_DESCRIPTOR; | |
858ef0ce | 2150 | BFD_ASSERT ((h->flags & XCOFF_DESCRIPTOR) == 0); |
252b5132 RH |
2151 | hds->descriptor = h; |
2152 | h->descriptor = hds; | |
2153 | } | |
858ef0ce RS |
2154 | if (h->root.root.string[0] == '.') |
2155 | h->flags |= XCOFF_CALLED; | |
252b5132 RH |
2156 | } |
2157 | } | |
2158 | ||
2159 | free (reloc_info[o->target_index].csects); | |
2160 | reloc_info[o->target_index].csects = NULL; | |
2161 | ||
2162 | /* Reset SEC_RELOC and the reloc_count, since the reloc | |
2163 | information is now attached to the csects. */ | |
beb1bf64 | 2164 | o->flags &=~ SEC_RELOC; |
252b5132 RH |
2165 | o->reloc_count = 0; |
2166 | ||
2167 | /* If we are not keeping memory, free the reloc information. */ | |
2168 | if (! info->keep_memory | |
2169 | && coff_section_data (abfd, o) != NULL | |
2170 | && coff_section_data (abfd, o)->relocs != NULL | |
2171 | && ! coff_section_data (abfd, o)->keep_relocs) | |
2172 | { | |
2173 | free (coff_section_data (abfd, o)->relocs); | |
2174 | coff_section_data (abfd, o)->relocs = NULL; | |
2175 | } | |
2176 | } | |
2177 | ||
2178 | /* Free up the line numbers. FIXME: We could cache these | |
b34976b6 | 2179 | somewhere for the final link, to avoid reading them again. */ |
252b5132 RH |
2180 | if (reloc_info[o->target_index].linenos != NULL) |
2181 | { | |
2182 | free (reloc_info[o->target_index].linenos); | |
2183 | reloc_info[o->target_index].linenos = NULL; | |
2184 | } | |
2185 | } | |
2186 | ||
2187 | free (reloc_info); | |
2188 | ||
2189 | obj_coff_keep_syms (abfd) = keep_syms; | |
2190 | ||
b34976b6 | 2191 | return TRUE; |
252b5132 RH |
2192 | |
2193 | error_return: | |
2194 | if (reloc_info != NULL) | |
2195 | { | |
2196 | for (o = abfd->sections; o != NULL; o = o->next) | |
2197 | { | |
2198 | if (reloc_info[o->target_index].csects != NULL) | |
2199 | free (reloc_info[o->target_index].csects); | |
2200 | if (reloc_info[o->target_index].linenos != NULL) | |
2201 | free (reloc_info[o->target_index].linenos); | |
2202 | } | |
dc810e39 | 2203 | free (reloc_info); |
252b5132 RH |
2204 | } |
2205 | obj_coff_keep_syms (abfd) = keep_syms; | |
b34976b6 | 2206 | return FALSE; |
252b5132 RH |
2207 | } |
2208 | ||
2209 | #undef N_TMASK | |
2210 | #undef N_BTSHFT | |
2211 | ||
116c20d2 | 2212 | /* Add symbols from an XCOFF object file. */ |
252b5132 | 2213 | |
b34976b6 | 2214 | static bfd_boolean |
116c20d2 | 2215 | xcoff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2216 | { |
116c20d2 NC |
2217 | if (! _bfd_coff_get_external_symbols (abfd)) |
2218 | return FALSE; | |
2219 | if (! xcoff_link_add_symbols (abfd, info)) | |
2220 | return FALSE; | |
2221 | if (! info->keep_memory) | |
252b5132 | 2222 | { |
116c20d2 NC |
2223 | if (! _bfd_coff_free_symbols (abfd)) |
2224 | return FALSE; | |
252b5132 | 2225 | } |
116c20d2 NC |
2226 | return TRUE; |
2227 | } | |
dc810e39 | 2228 | |
116c20d2 NC |
2229 | /* Look through the loader symbols to see if this dynamic object |
2230 | should be included in the link. The native linker uses the loader | |
2231 | symbols, not the normal symbol table, so we do too. */ | |
2232 | ||
2233 | static bfd_boolean | |
2234 | xcoff_link_check_dynamic_ar_symbols (bfd *abfd, | |
2235 | struct bfd_link_info *info, | |
5d3236ee DK |
2236 | bfd_boolean *pneeded, |
2237 | bfd **subsbfd) | |
116c20d2 NC |
2238 | { |
2239 | asection *lsec; | |
2240 | bfd_byte *contents; | |
2241 | struct internal_ldhdr ldhdr; | |
2242 | const char *strings; | |
2243 | bfd_byte *elsym, *elsymend; | |
2244 | ||
2245 | *pneeded = FALSE; | |
252b5132 | 2246 | |
252b5132 RH |
2247 | lsec = bfd_get_section_by_name (abfd, ".loader"); |
2248 | if (lsec == NULL) | |
116c20d2 NC |
2249 | /* There are no symbols, so don't try to include it. */ |
2250 | return TRUE; | |
beb1bf64 | 2251 | |
252b5132 | 2252 | if (! xcoff_get_section_contents (abfd, lsec)) |
b34976b6 | 2253 | return FALSE; |
beb1bf64 | 2254 | contents = coff_section_data (abfd, lsec)->contents; |
252b5132 | 2255 | |
beb1bf64 TR |
2256 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
2257 | ||
2258 | strings = (char *) contents + ldhdr.l_stoff; | |
2259 | ||
116c20d2 | 2260 | elsym = contents + bfd_xcoff_loader_symbol_offset (abfd, &ldhdr); |
252b5132 | 2261 | |
116c20d2 NC |
2262 | elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz (abfd); |
2263 | for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz (abfd)) | |
252b5132 RH |
2264 | { |
2265 | struct internal_ldsym ldsym; | |
2266 | char nambuf[SYMNMLEN + 1]; | |
2267 | const char *name; | |
116c20d2 | 2268 | struct bfd_link_hash_entry *h; |
252b5132 | 2269 | |
beb1bf64 | 2270 | bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym); |
252b5132 RH |
2271 | |
2272 | /* We are only interested in exported symbols. */ | |
2273 | if ((ldsym.l_smtype & L_EXPORT) == 0) | |
2274 | continue; | |
2275 | ||
2276 | if (ldsym._l._l_l._l_zeroes == 0) | |
2277 | name = strings + ldsym._l._l_l._l_offset; | |
2278 | else | |
2279 | { | |
2280 | memcpy (nambuf, ldsym._l._l_name, SYMNMLEN); | |
2281 | nambuf[SYMNMLEN] = '\0'; | |
2282 | name = nambuf; | |
2283 | } | |
2284 | ||
116c20d2 | 2285 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
252b5132 | 2286 | |
116c20d2 NC |
2287 | /* We are only interested in symbols that are currently |
2288 | undefined. At this point we know that we are using an XCOFF | |
2289 | hash table. */ | |
2290 | if (h != NULL | |
2291 | && h->type == bfd_link_hash_undefined | |
2292 | && (((struct xcoff_link_hash_entry *) h)->flags | |
2293 | & XCOFF_DEF_DYNAMIC) == 0) | |
252b5132 | 2294 | { |
0e144ba7 AM |
2295 | if (!(*info->callbacks |
2296 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
116c20d2 NC |
2297 | return FALSE; |
2298 | *pneeded = TRUE; | |
2299 | return TRUE; | |
252b5132 | 2300 | } |
116c20d2 | 2301 | } |
252b5132 | 2302 | |
116c20d2 NC |
2303 | /* We do not need this shared object. */ |
2304 | if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents) | |
2305 | { | |
2306 | free (coff_section_data (abfd, lsec)->contents); | |
2307 | coff_section_data (abfd, lsec)->contents = NULL; | |
2308 | } | |
252b5132 | 2309 | |
116c20d2 NC |
2310 | return TRUE; |
2311 | } | |
252b5132 | 2312 | |
116c20d2 NC |
2313 | /* Look through the symbols to see if this object file should be |
2314 | included in the link. */ | |
252b5132 | 2315 | |
116c20d2 NC |
2316 | static bfd_boolean |
2317 | xcoff_link_check_ar_symbols (bfd *abfd, | |
2318 | struct bfd_link_info *info, | |
5d3236ee DK |
2319 | bfd_boolean *pneeded, |
2320 | bfd **subsbfd) | |
116c20d2 NC |
2321 | { |
2322 | bfd_size_type symesz; | |
2323 | bfd_byte *esym; | |
2324 | bfd_byte *esym_end; | |
252b5132 | 2325 | |
116c20d2 | 2326 | *pneeded = FALSE; |
252b5132 | 2327 | |
116c20d2 NC |
2328 | if ((abfd->flags & DYNAMIC) != 0 |
2329 | && ! info->static_link | |
f13a99db | 2330 | && info->output_bfd->xvec == abfd->xvec) |
5d3236ee | 2331 | return xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded, subsbfd); |
252b5132 | 2332 | |
116c20d2 NC |
2333 | symesz = bfd_coff_symesz (abfd); |
2334 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
2335 | esym_end = esym + obj_raw_syment_count (abfd) * symesz; | |
2336 | while (esym < esym_end) | |
2337 | { | |
2338 | struct internal_syment sym; | |
252b5132 | 2339 | |
116c20d2 | 2340 | bfd_coff_swap_sym_in (abfd, (void *) esym, (void *) &sym); |
252b5132 | 2341 | |
8602d4fe | 2342 | if (EXTERN_SYM_P (sym.n_sclass) && sym.n_scnum != N_UNDEF) |
116c20d2 NC |
2343 | { |
2344 | const char *name; | |
2345 | char buf[SYMNMLEN + 1]; | |
2346 | struct bfd_link_hash_entry *h; | |
252b5132 | 2347 | |
116c20d2 NC |
2348 | /* This symbol is externally visible, and is defined by this |
2349 | object file. */ | |
2350 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); | |
2351 | ||
2352 | if (name == NULL) | |
2353 | return FALSE; | |
2354 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); | |
2355 | ||
2356 | /* We are only interested in symbols that are currently | |
2357 | undefined. If a symbol is currently known to be common, | |
2358 | XCOFF linkers do not bring in an object file which | |
2359 | defines it. We also don't bring in symbols to satisfy | |
2360 | undefined references in shared objects. */ | |
2361 | if (h != NULL | |
2362 | && h->type == bfd_link_hash_undefined | |
f13a99db | 2363 | && (info->output_bfd->xvec != abfd->xvec |
116c20d2 NC |
2364 | || (((struct xcoff_link_hash_entry *) h)->flags |
2365 | & XCOFF_DEF_DYNAMIC) == 0)) | |
252b5132 | 2366 | { |
0e144ba7 AM |
2367 | if (!(*info->callbacks |
2368 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
116c20d2 NC |
2369 | return FALSE; |
2370 | *pneeded = TRUE; | |
2371 | return TRUE; | |
252b5132 RH |
2372 | } |
2373 | } | |
252b5132 | 2374 | |
116c20d2 | 2375 | esym += (sym.n_numaux + 1) * symesz; |
252b5132 RH |
2376 | } |
2377 | ||
116c20d2 NC |
2378 | /* We do not need this object file. */ |
2379 | return TRUE; | |
2380 | } | |
252b5132 | 2381 | |
116c20d2 NC |
2382 | /* Check a single archive element to see if we need to include it in |
2383 | the link. *PNEEDED is set according to whether this element is | |
2384 | needed in the link or not. This is called via | |
2385 | _bfd_generic_link_add_archive_symbols. */ | |
2386 | ||
2387 | static bfd_boolean | |
2388 | xcoff_link_check_archive_element (bfd *abfd, | |
2389 | struct bfd_link_info *info, | |
2390 | bfd_boolean *pneeded) | |
2391 | { | |
f95942a3 | 2392 | bfd_boolean keep_syms_p; |
0e144ba7 | 2393 | bfd *oldbfd; |
f95942a3 RS |
2394 | |
2395 | keep_syms_p = (obj_coff_external_syms (abfd) != NULL); | |
0e144ba7 | 2396 | if (!_bfd_coff_get_external_symbols (abfd)) |
b34976b6 | 2397 | return FALSE; |
252b5132 | 2398 | |
0e144ba7 AM |
2399 | oldbfd = abfd; |
2400 | if (!xcoff_link_check_ar_symbols (abfd, info, pneeded, &abfd)) | |
116c20d2 NC |
2401 | return FALSE; |
2402 | ||
2403 | if (*pneeded) | |
252b5132 | 2404 | { |
5d3236ee DK |
2405 | /* Potentially, the add_archive_element hook may have set a |
2406 | substitute BFD for us. */ | |
0e144ba7 AM |
2407 | if (abfd != oldbfd) |
2408 | { | |
2409 | if (!keep_syms_p | |
2410 | && !_bfd_coff_free_symbols (oldbfd)) | |
2411 | return FALSE; | |
2412 | keep_syms_p = (obj_coff_external_syms (abfd) != NULL); | |
2413 | if (!_bfd_coff_get_external_symbols (abfd)) | |
2414 | return FALSE; | |
2415 | } | |
2416 | if (!xcoff_link_add_symbols (abfd, info)) | |
116c20d2 | 2417 | return FALSE; |
f95942a3 RS |
2418 | if (info->keep_memory) |
2419 | keep_syms_p = TRUE; | |
252b5132 | 2420 | } |
116c20d2 | 2421 | |
f95942a3 | 2422 | if (!keep_syms_p) |
252b5132 | 2423 | { |
0e144ba7 | 2424 | if (!_bfd_coff_free_symbols (abfd)) |
116c20d2 | 2425 | return FALSE; |
252b5132 | 2426 | } |
252b5132 | 2427 | |
116c20d2 NC |
2428 | return TRUE; |
2429 | } | |
252b5132 | 2430 | |
116c20d2 NC |
2431 | /* Given an XCOFF BFD, add symbols to the global hash table as |
2432 | appropriate. */ | |
252b5132 | 2433 | |
116c20d2 NC |
2434 | bfd_boolean |
2435 | _bfd_xcoff_bfd_link_add_symbols (bfd *abfd, struct bfd_link_info *info) | |
2436 | { | |
2437 | switch (bfd_get_format (abfd)) | |
2438 | { | |
2439 | case bfd_object: | |
2440 | return xcoff_link_add_object_symbols (abfd, info); | |
2441 | ||
2442 | case bfd_archive: | |
2443 | /* If the archive has a map, do the usual search. We then need | |
2444 | to check the archive for dynamic objects, because they may not | |
2445 | appear in the archive map even though they should, perhaps, be | |
2446 | included. If the archive has no map, we just consider each object | |
2447 | file in turn, since that apparently is what the AIX native linker | |
2448 | does. */ | |
2449 | if (bfd_has_map (abfd)) | |
2450 | { | |
2451 | if (! (_bfd_generic_link_add_archive_symbols | |
2452 | (abfd, info, xcoff_link_check_archive_element))) | |
2453 | return FALSE; | |
2454 | } | |
2455 | ||
2456 | { | |
2457 | bfd *member; | |
2458 | ||
2459 | member = bfd_openr_next_archived_file (abfd, NULL); | |
2460 | while (member != NULL) | |
2461 | { | |
2462 | if (bfd_check_format (member, bfd_object) | |
f13a99db | 2463 | && (info->output_bfd->xvec == member->xvec) |
116c20d2 NC |
2464 | && (! bfd_has_map (abfd) || (member->flags & DYNAMIC) != 0)) |
2465 | { | |
2466 | bfd_boolean needed; | |
2467 | ||
2468 | if (! xcoff_link_check_archive_element (member, info, | |
2469 | &needed)) | |
2470 | return FALSE; | |
2471 | if (needed) | |
2472 | member->archive_pass = -1; | |
2473 | } | |
2474 | member = bfd_openr_next_archived_file (abfd, member); | |
2475 | } | |
2476 | } | |
2477 | ||
2478 | return TRUE; | |
2479 | ||
2480 | default: | |
2481 | bfd_set_error (bfd_error_wrong_format); | |
2482 | return FALSE; | |
2483 | } | |
252b5132 RH |
2484 | } |
2485 | \f | |
3023e3f6 RS |
2486 | bfd_boolean |
2487 | _bfd_xcoff_define_common_symbol (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2488 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2489 | struct bfd_link_hash_entry *harg) | |
2490 | { | |
2491 | struct xcoff_link_hash_entry *h; | |
2492 | ||
2493 | if (!bfd_generic_define_common_symbol (output_bfd, info, harg)) | |
2494 | return FALSE; | |
2495 | ||
2496 | h = (struct xcoff_link_hash_entry *) harg; | |
2497 | h->flags |= XCOFF_DEF_REGULAR; | |
2498 | return TRUE; | |
2499 | } | |
2500 | \f | |
858ef0ce RS |
2501 | /* If symbol H has not been interpreted as a function descriptor, |
2502 | see whether it should be. Set up its descriptor information if so. */ | |
2503 | ||
2504 | static bfd_boolean | |
2505 | xcoff_find_function (struct bfd_link_info *info, | |
2506 | struct xcoff_link_hash_entry *h) | |
2507 | { | |
2508 | if ((h->flags & XCOFF_DESCRIPTOR) == 0 | |
2509 | && h->root.root.string[0] != '.') | |
2510 | { | |
2511 | char *fnname; | |
2512 | struct xcoff_link_hash_entry *hfn; | |
2513 | bfd_size_type amt; | |
2514 | ||
2515 | amt = strlen (h->root.root.string) + 2; | |
2516 | fnname = bfd_malloc (amt); | |
2517 | if (fnname == NULL) | |
2518 | return FALSE; | |
2519 | fnname[0] = '.'; | |
2520 | strcpy (fnname + 1, h->root.root.string); | |
2521 | hfn = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
2522 | fnname, FALSE, FALSE, TRUE); | |
2523 | free (fnname); | |
2524 | if (hfn != NULL | |
2525 | && hfn->smclas == XMC_PR | |
2526 | && (hfn->root.type == bfd_link_hash_defined | |
2527 | || hfn->root.type == bfd_link_hash_defweak)) | |
2528 | { | |
2529 | h->flags |= XCOFF_DESCRIPTOR; | |
2530 | h->descriptor = hfn; | |
2531 | hfn->descriptor = h; | |
2532 | } | |
2533 | } | |
2534 | return TRUE; | |
2535 | } | |
858ef0ce | 2536 | \f |
b64232cc RS |
2537 | /* Return true if the given bfd contains at least one shared object. */ |
2538 | ||
2539 | static bfd_boolean | |
ee698300 RS |
2540 | xcoff_archive_contains_shared_object_p (struct bfd_link_info *info, |
2541 | bfd *archive) | |
b64232cc | 2542 | { |
ee698300 | 2543 | struct xcoff_archive_info *archive_info; |
b64232cc RS |
2544 | bfd *member; |
2545 | ||
ee698300 RS |
2546 | archive_info = xcoff_get_archive_info (info, archive); |
2547 | if (!archive_info->know_contains_shared_object_p) | |
2548 | { | |
2549 | member = bfd_openr_next_archived_file (archive, NULL); | |
2550 | while (member != NULL && (member->flags & DYNAMIC) == 0) | |
2551 | member = bfd_openr_next_archived_file (archive, member); | |
2552 | ||
2553 | archive_info->contains_shared_object_p = (member != NULL); | |
2554 | archive_info->know_contains_shared_object_p = 1; | |
2555 | } | |
2556 | return archive_info->contains_shared_object_p; | |
b64232cc RS |
2557 | } |
2558 | ||
2559 | /* Symbol H qualifies for export by -bexpfull. Return true if it also | |
2560 | qualifies for export by -bexpall. */ | |
2561 | ||
2562 | static bfd_boolean | |
2563 | xcoff_covered_by_expall_p (struct xcoff_link_hash_entry *h) | |
2564 | { | |
2565 | /* Exclude symbols beginning with '_'. */ | |
2566 | if (h->root.root.string[0] == '_') | |
2567 | return FALSE; | |
2568 | ||
2569 | /* Exclude archive members that would otherwise be unreferenced. */ | |
2570 | if ((h->flags & XCOFF_MARK) == 0 | |
2571 | && (h->root.type == bfd_link_hash_defined | |
2572 | || h->root.type == bfd_link_hash_defweak) | |
2573 | && h->root.u.def.section->owner != NULL | |
2574 | && h->root.u.def.section->owner->my_archive != NULL) | |
2575 | return FALSE; | |
2576 | ||
2577 | return TRUE; | |
2578 | } | |
2579 | ||
2580 | /* Return true if symbol H qualifies for the forms of automatic export | |
2581 | specified by AUTO_EXPORT_FLAGS. */ | |
2582 | ||
2583 | static bfd_boolean | |
ee698300 RS |
2584 | xcoff_auto_export_p (struct bfd_link_info *info, |
2585 | struct xcoff_link_hash_entry *h, | |
b64232cc RS |
2586 | unsigned int auto_export_flags) |
2587 | { | |
2588 | /* Don't automatically export things that were explicitly exported. */ | |
2589 | if ((h->flags & XCOFF_EXPORT) != 0) | |
2590 | return FALSE; | |
2591 | ||
2592 | /* Don't export things that we don't define. */ | |
2593 | if ((h->flags & XCOFF_DEF_REGULAR) == 0) | |
2594 | return FALSE; | |
2595 | ||
2596 | /* Don't export functions; export their descriptors instead. */ | |
2597 | if (h->root.root.string[0] == '.') | |
2598 | return FALSE; | |
2599 | ||
2600 | /* We don't export a symbol which is being defined by an object | |
2601 | included from an archive which contains a shared object. The | |
2602 | rationale is that if an archive contains both an unshared and | |
2603 | a shared object, then there must be some reason that the | |
2604 | unshared object is unshared, and we don't want to start | |
2605 | providing a shared version of it. In particular, this solves | |
2606 | a bug involving the _savefNN set of functions. gcc will call | |
2607 | those functions without providing a slot to restore the TOC, | |
2608 | so it is essential that these functions be linked in directly | |
2609 | and not from a shared object, which means that a shared | |
2610 | object which also happens to link them in must not export | |
2611 | them. This is confusing, but I haven't been able to think of | |
2612 | a different approach. Note that the symbols can, of course, | |
2613 | be exported explicitly. */ | |
2614 | if (h->root.type == bfd_link_hash_defined | |
2615 | || h->root.type == bfd_link_hash_defweak) | |
2616 | { | |
2617 | bfd *owner; | |
2618 | ||
2619 | owner = h->root.u.def.section->owner; | |
2620 | if (owner != NULL | |
2621 | && owner->my_archive != NULL | |
ee698300 | 2622 | && xcoff_archive_contains_shared_object_p (info, owner->my_archive)) |
b64232cc RS |
2623 | return FALSE; |
2624 | } | |
2625 | ||
2626 | /* Otherwise, all symbols are exported by -bexpfull. */ | |
2627 | if ((auto_export_flags & XCOFF_EXPFULL) != 0) | |
2628 | return TRUE; | |
2629 | ||
2630 | /* Despite its name, -bexpall exports most but not all symbols. */ | |
2631 | if ((auto_export_flags & XCOFF_EXPALL) != 0 | |
2632 | && xcoff_covered_by_expall_p (h)) | |
2633 | return TRUE; | |
2634 | ||
2635 | return FALSE; | |
2636 | } | |
2637 | \f | |
b3d1832c RS |
2638 | /* Return true if relocation REL needs to be copied to the .loader section. |
2639 | If REL is against a global symbol, H is that symbol, otherwise it | |
2640 | is null. */ | |
2641 | ||
2642 | static bfd_boolean | |
2643 | xcoff_need_ldrel_p (struct bfd_link_info *info, struct internal_reloc *rel, | |
2644 | struct xcoff_link_hash_entry *h) | |
2645 | { | |
2646 | if (!xcoff_hash_table (info)->loader_section) | |
2647 | return FALSE; | |
2648 | ||
2649 | switch (rel->r_type) | |
2650 | { | |
2651 | case R_TOC: | |
2652 | case R_GL: | |
2653 | case R_TCL: | |
2654 | case R_TRL: | |
2655 | case R_TRLA: | |
2656 | /* We should never need a .loader reloc for a TOC-relative reloc. */ | |
2657 | return FALSE; | |
2658 | ||
2659 | default: | |
2660 | /* In this case, relocations against defined symbols can be resolved | |
2661 | statically. */ | |
2662 | if (h == NULL | |
2663 | || h->root.type == bfd_link_hash_defined | |
2664 | || h->root.type == bfd_link_hash_defweak | |
2665 | || h->root.type == bfd_link_hash_common) | |
2666 | return FALSE; | |
2667 | ||
2668 | /* We will always provide a local definition of function symbols, | |
2669 | even if we don't have one yet. */ | |
2670 | if ((h->flags & XCOFF_CALLED) != 0) | |
2671 | return FALSE; | |
2672 | ||
2673 | return TRUE; | |
2674 | ||
2675 | case R_POS: | |
2676 | case R_NEG: | |
2677 | case R_RL: | |
2678 | case R_RLA: | |
2679 | /* Absolute relocations against absolute symbols can be | |
2680 | resolved statically. */ | |
2681 | if (h != NULL | |
2682 | && (h->root.type == bfd_link_hash_defined | |
2683 | || h->root.type == bfd_link_hash_defweak) | |
2684 | && bfd_is_abs_section (h->root.u.def.section)) | |
2685 | return FALSE; | |
2686 | ||
2687 | return TRUE; | |
2688 | } | |
2689 | } | |
2690 | \f | |
252b5132 RH |
2691 | /* Mark a symbol as not being garbage, including the section in which |
2692 | it is defined. */ | |
2693 | ||
116c20d2 NC |
2694 | static inline bfd_boolean |
2695 | xcoff_mark_symbol (struct bfd_link_info *info, struct xcoff_link_hash_entry *h) | |
252b5132 RH |
2696 | { |
2697 | if ((h->flags & XCOFF_MARK) != 0) | |
b34976b6 | 2698 | return TRUE; |
252b5132 RH |
2699 | |
2700 | h->flags |= XCOFF_MARK; | |
858ef0ce RS |
2701 | |
2702 | /* If we're marking an undefined symbol, try find some way of | |
2703 | defining it. */ | |
2704 | if (!info->relocatable | |
2705 | && (h->flags & XCOFF_IMPORT) == 0 | |
2706 | && (h->flags & XCOFF_DEF_REGULAR) == 0 | |
2707 | && (h->root.type == bfd_link_hash_undefined | |
2708 | || h->root.type == bfd_link_hash_undefweak)) | |
2709 | { | |
2710 | /* First check whether this symbol can be interpreted as an | |
2711 | undefined function descriptor for a defined function symbol. */ | |
2712 | if (!xcoff_find_function (info, h)) | |
2713 | return FALSE; | |
2714 | ||
2715 | if ((h->flags & XCOFF_DESCRIPTOR) != 0 | |
2716 | && (h->descriptor->root.type == bfd_link_hash_defined | |
2717 | || h->descriptor->root.type == bfd_link_hash_defweak)) | |
2718 | { | |
2719 | /* This is a descriptor for a defined symbol, but the input | |
2720 | objects have not defined the descriptor itself. Fill in | |
2721 | the definition automatically. | |
2722 | ||
2723 | Note that we do this even if we found a dynamic definition | |
2724 | of H. The local function definition logically overrides | |
2725 | the dynamic one. */ | |
2726 | asection *sec; | |
2727 | ||
2728 | sec = xcoff_hash_table (info)->descriptor_section; | |
2729 | h->root.type = bfd_link_hash_defined; | |
2730 | h->root.u.def.section = sec; | |
2731 | h->root.u.def.value = sec->size; | |
2732 | h->smclas = XMC_DS; | |
2733 | h->flags |= XCOFF_DEF_REGULAR; | |
2734 | ||
2735 | /* The size of the function descriptor depends on whether this | |
2736 | is xcoff32 (12) or xcoff64 (24). */ | |
2737 | sec->size += bfd_xcoff_function_descriptor_size (sec->owner); | |
2738 | ||
2739 | /* A function descriptor uses two relocs: one for the | |
2740 | associated code, and one for the TOC address. */ | |
2741 | xcoff_hash_table (info)->ldrel_count += 2; | |
2742 | sec->reloc_count += 2; | |
2743 | ||
2744 | /* Mark the function itself. */ | |
2745 | if (!xcoff_mark_symbol (info, h->descriptor)) | |
2746 | return FALSE; | |
2747 | ||
47dfb2ca RS |
2748 | /* Mark the TOC section, so that we get an anchor |
2749 | to relocate against. */ | |
2750 | if (!xcoff_mark (info, xcoff_hash_table (info)->toc_section)) | |
2751 | return FALSE; | |
2752 | ||
858ef0ce RS |
2753 | /* We handle writing out the contents of the descriptor in |
2754 | xcoff_write_global_symbol. */ | |
2755 | } | |
94313f36 RS |
2756 | else if (info->static_link) |
2757 | /* We can't get a symbol value dynamically, so just assume | |
2758 | that it's undefined. */ | |
2759 | h->flags |= XCOFF_WAS_UNDEFINED; | |
858ef0ce RS |
2760 | else if ((h->flags & XCOFF_CALLED) != 0) |
2761 | { | |
2762 | /* This is a function symbol for which we need to create | |
2763 | linkage code. */ | |
2764 | asection *sec; | |
2765 | struct xcoff_link_hash_entry *hds; | |
2766 | ||
2767 | /* Mark the descriptor (and its TOC section). */ | |
2768 | hds = h->descriptor; | |
2769 | BFD_ASSERT ((hds->root.type == bfd_link_hash_undefined | |
2770 | || hds->root.type == bfd_link_hash_undefweak) | |
2771 | && (hds->flags & XCOFF_DEF_REGULAR) == 0); | |
2772 | if (!xcoff_mark_symbol (info, hds)) | |
2773 | return FALSE; | |
2774 | ||
2775 | /* Treat this symbol as undefined if the descriptor was. */ | |
2776 | if ((hds->flags & XCOFF_WAS_UNDEFINED) != 0) | |
2777 | h->flags |= XCOFF_WAS_UNDEFINED; | |
2778 | ||
2779 | /* Allocate room for the global linkage code itself. */ | |
2780 | sec = xcoff_hash_table (info)->linkage_section; | |
2781 | h->root.type = bfd_link_hash_defined; | |
2782 | h->root.u.def.section = sec; | |
2783 | h->root.u.def.value = sec->size; | |
2784 | h->smclas = XMC_GL; | |
2785 | h->flags |= XCOFF_DEF_REGULAR; | |
2786 | sec->size += bfd_xcoff_glink_code_size (info->output_bfd); | |
2787 | ||
2788 | /* The global linkage code requires a TOC entry for the | |
2789 | descriptor. */ | |
2790 | if (hds->toc_section == NULL) | |
2791 | { | |
2792 | int byte_size; | |
2793 | ||
2794 | /* 32 vs 64 | |
2795 | xcoff32 uses 4 bytes in the toc. | |
2796 | xcoff64 uses 8 bytes in the toc. */ | |
2797 | if (bfd_xcoff_is_xcoff64 (info->output_bfd)) | |
2798 | byte_size = 8; | |
2799 | else if (bfd_xcoff_is_xcoff32 (info->output_bfd)) | |
2800 | byte_size = 4; | |
2801 | else | |
2802 | return FALSE; | |
2803 | ||
2804 | /* Allocate room in the fallback TOC section. */ | |
2805 | hds->toc_section = xcoff_hash_table (info)->toc_section; | |
2806 | hds->u.toc_offset = hds->toc_section->size; | |
2807 | hds->toc_section->size += byte_size; | |
2808 | if (!xcoff_mark (info, hds->toc_section)) | |
2809 | return FALSE; | |
2810 | ||
2811 | /* Allocate room for a static and dynamic R_TOC | |
2812 | relocation. */ | |
2813 | ++xcoff_hash_table (info)->ldrel_count; | |
2814 | ++hds->toc_section->reloc_count; | |
2815 | ||
2816 | /* Set the index to -2 to force this symbol to | |
2817 | get written out. */ | |
2818 | hds->indx = -2; | |
2819 | hds->flags |= XCOFF_SET_TOC | XCOFF_LDREL; | |
2820 | } | |
2821 | } | |
2822 | else if ((h->flags & XCOFF_DEF_DYNAMIC) == 0) | |
2823 | { | |
2824 | /* Record that the symbol was undefined, then import it. | |
2825 | -brtl links use a special fake import file. */ | |
2826 | h->flags |= XCOFF_WAS_UNDEFINED | XCOFF_IMPORT; | |
2827 | if (xcoff_hash_table (info)->rtld) | |
2828 | { | |
2829 | if (!xcoff_set_import_path (info, h, "", "..", "")) | |
2830 | return FALSE; | |
2831 | } | |
2832 | else | |
2833 | { | |
2834 | if (!xcoff_set_import_path (info, h, NULL, NULL, NULL)) | |
2835 | return FALSE; | |
2836 | } | |
2837 | } | |
2838 | } | |
2839 | ||
252b5132 RH |
2840 | if (h->root.type == bfd_link_hash_defined |
2841 | || h->root.type == bfd_link_hash_defweak) | |
2842 | { | |
2843 | asection *hsec; | |
2844 | ||
2845 | hsec = h->root.u.def.section; | |
2846 | if (! bfd_is_abs_section (hsec) | |
2847 | && (hsec->flags & SEC_MARK) == 0) | |
2848 | { | |
2849 | if (! xcoff_mark (info, hsec)) | |
b34976b6 | 2850 | return FALSE; |
252b5132 RH |
2851 | } |
2852 | } | |
2853 | ||
2854 | if (h->toc_section != NULL | |
2855 | && (h->toc_section->flags & SEC_MARK) == 0) | |
2856 | { | |
2857 | if (! xcoff_mark (info, h->toc_section)) | |
b34976b6 | 2858 | return FALSE; |
252b5132 RH |
2859 | } |
2860 | ||
b34976b6 | 2861 | return TRUE; |
252b5132 RH |
2862 | } |
2863 | ||
7d504122 RS |
2864 | /* Look for a symbol called NAME. If the symbol is defined, mark it. |
2865 | If the symbol exists, set FLAGS. */ | |
2866 | ||
2867 | static bfd_boolean | |
2868 | xcoff_mark_symbol_by_name (struct bfd_link_info *info, | |
2869 | const char *name, unsigned int flags) | |
2870 | { | |
2871 | struct xcoff_link_hash_entry *h; | |
2872 | ||
2873 | h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, | |
2874 | FALSE, FALSE, TRUE); | |
2875 | if (h != NULL) | |
2876 | { | |
2877 | h->flags |= flags; | |
2878 | if (h->root.type == bfd_link_hash_defined | |
2879 | || h->root.type == bfd_link_hash_defweak) | |
2880 | { | |
2881 | if (!xcoff_mark (info, h->root.u.def.section)) | |
2882 | return FALSE; | |
2883 | } | |
2884 | } | |
2885 | return TRUE; | |
2886 | } | |
2887 | ||
252b5132 RH |
2888 | /* The mark phase of garbage collection. For a given section, mark |
2889 | it, and all the sections which define symbols to which it refers. | |
2890 | Because this function needs to look at the relocs, we also count | |
2891 | the number of relocs which need to be copied into the .loader | |
2892 | section. */ | |
2893 | ||
b34976b6 | 2894 | static bfd_boolean |
116c20d2 | 2895 | xcoff_mark (struct bfd_link_info *info, asection *sec) |
252b5132 RH |
2896 | { |
2897 | if (bfd_is_abs_section (sec) | |
2898 | || (sec->flags & SEC_MARK) != 0) | |
b34976b6 | 2899 | return TRUE; |
252b5132 RH |
2900 | |
2901 | sec->flags |= SEC_MARK; | |
2902 | ||
f13a99db | 2903 | if (sec->owner->xvec == info->output_bfd->xvec |
252b5132 RH |
2904 | && coff_section_data (sec->owner, sec) != NULL |
2905 | && xcoff_section_data (sec->owner, sec) != NULL) | |
2906 | { | |
4cc02a02 | 2907 | struct xcoff_link_hash_entry **syms; |
252b5132 | 2908 | struct internal_reloc *rel, *relend; |
4cc02a02 RS |
2909 | asection **csects; |
2910 | unsigned long i, first, last; | |
252b5132 RH |
2911 | |
2912 | /* Mark all the symbols in this section. */ | |
4cc02a02 RS |
2913 | syms = obj_xcoff_sym_hashes (sec->owner); |
2914 | csects = xcoff_data (sec->owner)->csects; | |
2915 | first = xcoff_section_data (sec->owner, sec)->first_symndx; | |
2916 | last = xcoff_section_data (sec->owner, sec)->last_symndx; | |
2917 | for (i = first; i <= last; i++) | |
2918 | if (csects[i] == sec | |
2919 | && syms[i] != NULL | |
2920 | && (syms[i]->flags & XCOFF_MARK) == 0) | |
2921 | { | |
2922 | if (!xcoff_mark_symbol (info, syms[i])) | |
2923 | return FALSE; | |
2924 | } | |
252b5132 RH |
2925 | |
2926 | /* Look through the section relocs. */ | |
252b5132 RH |
2927 | if ((sec->flags & SEC_RELOC) != 0 |
2928 | && sec->reloc_count > 0) | |
2929 | { | |
b34976b6 | 2930 | rel = xcoff_read_internal_relocs (sec->owner, sec, TRUE, |
116c20d2 | 2931 | NULL, FALSE, NULL); |
252b5132 | 2932 | if (rel == NULL) |
b34976b6 | 2933 | return FALSE; |
252b5132 RH |
2934 | relend = rel + sec->reloc_count; |
2935 | for (; rel < relend; rel++) | |
2936 | { | |
252b5132 RH |
2937 | struct xcoff_link_hash_entry *h; |
2938 | ||
2939 | if ((unsigned int) rel->r_symndx | |
2940 | > obj_raw_syment_count (sec->owner)) | |
2941 | continue; | |
2942 | ||
2943 | h = obj_xcoff_sym_hashes (sec->owner)[rel->r_symndx]; | |
5b49f6dc | 2944 | if (h != NULL) |
252b5132 | 2945 | { |
5b49f6dc RS |
2946 | if ((h->flags & XCOFF_MARK) == 0) |
2947 | { | |
2948 | if (!xcoff_mark_symbol (info, h)) | |
2949 | return FALSE; | |
2950 | } | |
252b5132 | 2951 | } |
5b49f6dc | 2952 | else |
252b5132 | 2953 | { |
5b49f6dc RS |
2954 | asection *rsec; |
2955 | ||
2956 | rsec = xcoff_data (sec->owner)->csects[rel->r_symndx]; | |
2957 | if (rsec != NULL | |
2958 | && (rsec->flags & SEC_MARK) == 0) | |
2959 | { | |
2960 | if (!xcoff_mark (info, rsec)) | |
2961 | return FALSE; | |
2962 | } | |
252b5132 RH |
2963 | } |
2964 | ||
2965 | /* See if this reloc needs to be copied into the .loader | |
b34976b6 | 2966 | section. */ |
b3d1832c | 2967 | if (xcoff_need_ldrel_p (info, rel, h)) |
252b5132 | 2968 | { |
252b5132 RH |
2969 | ++xcoff_hash_table (info)->ldrel_count; |
2970 | if (h != NULL) | |
2971 | h->flags |= XCOFF_LDREL; | |
252b5132 RH |
2972 | } |
2973 | } | |
2974 | ||
2975 | if (! info->keep_memory | |
2976 | && coff_section_data (sec->owner, sec) != NULL | |
2977 | && coff_section_data (sec->owner, sec)->relocs != NULL | |
2978 | && ! coff_section_data (sec->owner, sec)->keep_relocs) | |
2979 | { | |
2980 | free (coff_section_data (sec->owner, sec)->relocs); | |
2981 | coff_section_data (sec->owner, sec)->relocs = NULL; | |
2982 | } | |
2983 | } | |
2984 | } | |
2985 | ||
b34976b6 | 2986 | return TRUE; |
252b5132 RH |
2987 | } |
2988 | ||
116c20d2 NC |
2989 | /* Routines that are called after all the input files have been |
2990 | handled, but before the sections are laid out in memory. */ | |
2991 | ||
252b5132 RH |
2992 | /* The sweep phase of garbage collection. Remove all garbage |
2993 | sections. */ | |
2994 | ||
2995 | static void | |
116c20d2 | 2996 | xcoff_sweep (struct bfd_link_info *info) |
252b5132 RH |
2997 | { |
2998 | bfd *sub; | |
2999 | ||
3000 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
3001 | { | |
3002 | asection *o; | |
3003 | ||
3004 | for (o = sub->sections; o != NULL; o = o->next) | |
3005 | { | |
3006 | if ((o->flags & SEC_MARK) == 0) | |
3007 | { | |
3008 | /* Keep all sections from non-XCOFF input files. Keep | |
b34976b6 AM |
3009 | special sections. Keep .debug sections for the |
3010 | moment. */ | |
f13a99db | 3011 | if (sub->xvec != info->output_bfd->xvec |
252b5132 RH |
3012 | || o == xcoff_hash_table (info)->debug_section |
3013 | || o == xcoff_hash_table (info)->loader_section | |
3014 | || o == xcoff_hash_table (info)->linkage_section | |
252b5132 RH |
3015 | || o == xcoff_hash_table (info)->descriptor_section |
3016 | || strcmp (o->name, ".debug") == 0) | |
3017 | o->flags |= SEC_MARK; | |
3018 | else | |
3019 | { | |
eea6121a | 3020 | o->size = 0; |
252b5132 | 3021 | o->reloc_count = 0; |
252b5132 RH |
3022 | } |
3023 | } | |
3024 | } | |
3025 | } | |
3026 | } | |
3027 | ||
3028 | /* Record the number of elements in a set. This is used to output the | |
3029 | correct csect length. */ | |
3030 | ||
b34976b6 | 3031 | bfd_boolean |
116c20d2 NC |
3032 | bfd_xcoff_link_record_set (bfd *output_bfd, |
3033 | struct bfd_link_info *info, | |
3034 | struct bfd_link_hash_entry *harg, | |
3035 | bfd_size_type size) | |
252b5132 RH |
3036 | { |
3037 | struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; | |
3038 | struct xcoff_link_size_list *n; | |
dc810e39 | 3039 | bfd_size_type amt; |
252b5132 | 3040 | |
9bd09e22 | 3041 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 3042 | return TRUE; |
252b5132 RH |
3043 | |
3044 | /* This will hardly ever be called. I don't want to burn four bytes | |
3045 | per global symbol, so instead the size is kept on a linked list | |
3046 | attached to the hash table. */ | |
116c20d2 NC |
3047 | amt = sizeof (* n); |
3048 | n = bfd_alloc (output_bfd, amt); | |
252b5132 | 3049 | if (n == NULL) |
b34976b6 | 3050 | return FALSE; |
252b5132 RH |
3051 | n->next = xcoff_hash_table (info)->size_list; |
3052 | n->h = h; | |
3053 | n->size = size; | |
3054 | xcoff_hash_table (info)->size_list = n; | |
3055 | ||
3056 | h->flags |= XCOFF_HAS_SIZE; | |
3057 | ||
b34976b6 | 3058 | return TRUE; |
252b5132 RH |
3059 | } |
3060 | ||
3061 | /* Import a symbol. */ | |
3062 | ||
b34976b6 | 3063 | bfd_boolean |
116c20d2 NC |
3064 | bfd_xcoff_import_symbol (bfd *output_bfd, |
3065 | struct bfd_link_info *info, | |
3066 | struct bfd_link_hash_entry *harg, | |
3067 | bfd_vma val, | |
3068 | const char *imppath, | |
3069 | const char *impfile, | |
3070 | const char *impmember, | |
3071 | unsigned int syscall_flag) | |
252b5132 RH |
3072 | { |
3073 | struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; | |
3074 | ||
9bd09e22 | 3075 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 3076 | return TRUE; |
252b5132 RH |
3077 | |
3078 | /* A symbol name which starts with a period is the code for a | |
3079 | function. If the symbol is undefined, then add an undefined | |
3080 | symbol for the function descriptor, and import that instead. */ | |
3081 | if (h->root.root.string[0] == '.' | |
3082 | && h->root.type == bfd_link_hash_undefined | |
3083 | && val == (bfd_vma) -1) | |
3084 | { | |
3085 | struct xcoff_link_hash_entry *hds; | |
3086 | ||
3087 | hds = h->descriptor; | |
3088 | if (hds == NULL) | |
3089 | { | |
3090 | hds = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
3091 | h->root.root.string + 1, | |
b34976b6 | 3092 | TRUE, FALSE, TRUE); |
252b5132 | 3093 | if (hds == NULL) |
b34976b6 | 3094 | return FALSE; |
252b5132 RH |
3095 | if (hds->root.type == bfd_link_hash_new) |
3096 | { | |
3097 | hds->root.type = bfd_link_hash_undefined; | |
3098 | hds->root.u.undef.abfd = h->root.u.undef.abfd; | |
3099 | } | |
3100 | hds->flags |= XCOFF_DESCRIPTOR; | |
858ef0ce | 3101 | BFD_ASSERT ((h->flags & XCOFF_DESCRIPTOR) == 0); |
252b5132 RH |
3102 | hds->descriptor = h; |
3103 | h->descriptor = hds; | |
3104 | } | |
3105 | ||
3106 | /* Now, if the descriptor is undefined, import the descriptor | |
b34976b6 AM |
3107 | rather than the symbol we were told to import. FIXME: Is |
3108 | this correct in all cases? */ | |
252b5132 RH |
3109 | if (hds->root.type == bfd_link_hash_undefined) |
3110 | h = hds; | |
3111 | } | |
3112 | ||
1fdf0249 | 3113 | h->flags |= (XCOFF_IMPORT | syscall_flag); |
252b5132 RH |
3114 | |
3115 | if (val != (bfd_vma) -1) | |
3116 | { | |
3117 | if (h->root.type == bfd_link_hash_defined | |
3118 | && (! bfd_is_abs_section (h->root.u.def.section) | |
3119 | || h->root.u.def.value != val)) | |
3120 | { | |
3121 | if (! ((*info->callbacks->multiple_definition) | |
3122 | (info, h->root.root.string, h->root.u.def.section->owner, | |
3123 | h->root.u.def.section, h->root.u.def.value, | |
3124 | output_bfd, bfd_abs_section_ptr, val))) | |
b34976b6 | 3125 | return FALSE; |
252b5132 RH |
3126 | } |
3127 | ||
3128 | h->root.type = bfd_link_hash_defined; | |
3129 | h->root.u.def.section = bfd_abs_section_ptr; | |
3130 | h->root.u.def.value = val; | |
c4037431 | 3131 | h->smclas = XMC_XO; |
252b5132 RH |
3132 | } |
3133 | ||
858ef0ce RS |
3134 | if (!xcoff_set_import_path (info, h, imppath, impfile, impmember)) |
3135 | return FALSE; | |
252b5132 | 3136 | |
b34976b6 | 3137 | return TRUE; |
252b5132 RH |
3138 | } |
3139 | ||
3140 | /* Export a symbol. */ | |
3141 | ||
b34976b6 | 3142 | bfd_boolean |
116c20d2 NC |
3143 | bfd_xcoff_export_symbol (bfd *output_bfd, |
3144 | struct bfd_link_info *info, | |
3145 | struct bfd_link_hash_entry *harg) | |
252b5132 RH |
3146 | { |
3147 | struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; | |
3148 | ||
9bd09e22 | 3149 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 3150 | return TRUE; |
252b5132 RH |
3151 | |
3152 | h->flags |= XCOFF_EXPORT; | |
3153 | ||
3154 | /* FIXME: I'm not at all sure what syscall is supposed to mean, so | |
3155 | I'm just going to ignore it until somebody explains it. */ | |
3156 | ||
252b5132 RH |
3157 | /* Make sure we don't garbage collect this symbol. */ |
3158 | if (! xcoff_mark_symbol (info, h)) | |
b34976b6 | 3159 | return FALSE; |
252b5132 RH |
3160 | |
3161 | /* If this is a function descriptor, make sure we don't garbage | |
3162 | collect the associated function code. We normally don't have to | |
3163 | worry about this, because the descriptor will be attached to a | |
3164 | section with relocs, but if we are creating the descriptor | |
3165 | ourselves those relocs will not be visible to the mark code. */ | |
3166 | if ((h->flags & XCOFF_DESCRIPTOR) != 0) | |
3167 | { | |
3168 | if (! xcoff_mark_symbol (info, h->descriptor)) | |
b34976b6 | 3169 | return FALSE; |
252b5132 RH |
3170 | } |
3171 | ||
b34976b6 | 3172 | return TRUE; |
252b5132 RH |
3173 | } |
3174 | ||
3175 | /* Count a reloc against a symbol. This is called for relocs | |
3176 | generated by the linker script, typically for global constructors | |
3177 | and destructors. */ | |
3178 | ||
b34976b6 | 3179 | bfd_boolean |
116c20d2 NC |
3180 | bfd_xcoff_link_count_reloc (bfd *output_bfd, |
3181 | struct bfd_link_info *info, | |
3182 | const char *name) | |
252b5132 RH |
3183 | { |
3184 | struct xcoff_link_hash_entry *h; | |
3185 | ||
9bd09e22 | 3186 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 3187 | return TRUE; |
252b5132 RH |
3188 | |
3189 | h = ((struct xcoff_link_hash_entry *) | |
b34976b6 AM |
3190 | bfd_wrapped_link_hash_lookup (output_bfd, info, name, FALSE, FALSE, |
3191 | FALSE)); | |
252b5132 RH |
3192 | if (h == NULL) |
3193 | { | |
3194 | (*_bfd_error_handler) (_("%s: no such symbol"), name); | |
3195 | bfd_set_error (bfd_error_no_symbols); | |
b34976b6 | 3196 | return FALSE; |
252b5132 RH |
3197 | } |
3198 | ||
b3d1832c RS |
3199 | h->flags |= XCOFF_REF_REGULAR; |
3200 | if (xcoff_hash_table (info)->loader_section) | |
3201 | { | |
3202 | h->flags |= XCOFF_LDREL; | |
3203 | ++xcoff_hash_table (info)->ldrel_count; | |
3204 | } | |
fbc4fff4 | 3205 | |
252b5132 RH |
3206 | /* Mark the symbol to avoid garbage collection. */ |
3207 | if (! xcoff_mark_symbol (info, h)) | |
b34976b6 | 3208 | return FALSE; |
252b5132 | 3209 | |
b34976b6 | 3210 | return TRUE; |
252b5132 RH |
3211 | } |
3212 | ||
3213 | /* This function is called for each symbol to which the linker script | |
3214 | assigns a value. */ | |
3215 | ||
b34976b6 | 3216 | bfd_boolean |
116c20d2 NC |
3217 | bfd_xcoff_record_link_assignment (bfd *output_bfd, |
3218 | struct bfd_link_info *info, | |
3219 | const char *name) | |
252b5132 RH |
3220 | { |
3221 | struct xcoff_link_hash_entry *h; | |
3222 | ||
9bd09e22 | 3223 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 3224 | return TRUE; |
252b5132 | 3225 | |
b34976b6 AM |
3226 | h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, TRUE, TRUE, |
3227 | FALSE); | |
252b5132 | 3228 | if (h == NULL) |
b34976b6 | 3229 | return FALSE; |
252b5132 RH |
3230 | |
3231 | h->flags |= XCOFF_DEF_REGULAR; | |
3232 | ||
b34976b6 | 3233 | return TRUE; |
252b5132 RH |
3234 | } |
3235 | ||
b64232cc RS |
3236 | /* An xcoff_link_hash_traverse callback for which DATA points to an |
3237 | xcoff_loader_info. Mark all symbols that should be automatically | |
3238 | exported. */ | |
3239 | ||
3240 | static bfd_boolean | |
3241 | xcoff_mark_auto_exports (struct xcoff_link_hash_entry *h, void *data) | |
3242 | { | |
3243 | struct xcoff_loader_info *ldinfo; | |
3244 | ||
3245 | ldinfo = (struct xcoff_loader_info *) data; | |
ee698300 | 3246 | if (xcoff_auto_export_p (ldinfo->info, h, ldinfo->auto_export_flags)) |
b64232cc RS |
3247 | { |
3248 | if (!xcoff_mark_symbol (ldinfo->info, h)) | |
3249 | ldinfo->failed = TRUE; | |
3250 | } | |
3251 | return TRUE; | |
3252 | } | |
3253 | ||
116c20d2 | 3254 | /* Add a symbol to the .loader symbols, if necessary. */ |
252b5132 | 3255 | |
5b49f6dc RS |
3256 | /* INPUT_BFD has an external symbol associated with hash table entry H |
3257 | and csect CSECT. Return true if INPUT_BFD defines H. */ | |
3258 | ||
3259 | static bfd_boolean | |
3260 | xcoff_final_definition_p (bfd *input_bfd, struct xcoff_link_hash_entry *h, | |
3261 | asection *csect) | |
3262 | { | |
3263 | switch (h->root.type) | |
3264 | { | |
3265 | case bfd_link_hash_defined: | |
3266 | case bfd_link_hash_defweak: | |
3267 | /* No input bfd owns absolute symbols. They are written by | |
3268 | xcoff_write_global_symbol instead. */ | |
3269 | return (!bfd_is_abs_section (csect) | |
3270 | && h->root.u.def.section == csect); | |
3271 | ||
3272 | case bfd_link_hash_common: | |
3273 | return h->root.u.c.p->section->owner == input_bfd; | |
3274 | ||
3275 | case bfd_link_hash_undefined: | |
3276 | case bfd_link_hash_undefweak: | |
3277 | /* We can't treat undef.abfd as the owner because that bfd | |
3278 | might be a dynamic object. Allow any bfd to claim it. */ | |
3279 | return TRUE; | |
3280 | ||
3281 | default: | |
3282 | abort (); | |
3283 | } | |
3284 | } | |
3285 | ||
b3d1832c RS |
3286 | /* See if H should have a loader symbol associated with it. */ |
3287 | ||
116c20d2 | 3288 | static bfd_boolean |
b3d1832c RS |
3289 | xcoff_build_ldsym (struct xcoff_loader_info *ldinfo, |
3290 | struct xcoff_link_hash_entry *h) | |
252b5132 | 3291 | { |
dc810e39 | 3292 | bfd_size_type amt; |
252b5132 | 3293 | |
b3d1832c | 3294 | /* Warn if this symbol is exported but not defined. */ |
116c20d2 | 3295 | if ((h->flags & XCOFF_EXPORT) != 0 |
858ef0ce | 3296 | && (h->flags & XCOFF_WAS_UNDEFINED) != 0) |
116c20d2 | 3297 | { |
858ef0ce RS |
3298 | (*_bfd_error_handler) |
3299 | (_("warning: attempt to export undefined symbol `%s'"), | |
3300 | h->root.root.string); | |
858ef0ce | 3301 | return TRUE; |
252b5132 RH |
3302 | } |
3303 | ||
116c20d2 NC |
3304 | /* We need to add a symbol to the .loader section if it is mentioned |
3305 | in a reloc which we are copying to the .loader section and it was | |
3306 | not defined or common, or if it is the entry point, or if it is | |
3307 | being exported. */ | |
116c20d2 NC |
3308 | if (((h->flags & XCOFF_LDREL) == 0 |
3309 | || h->root.type == bfd_link_hash_defined | |
3310 | || h->root.type == bfd_link_hash_defweak | |
3311 | || h->root.type == bfd_link_hash_common) | |
3312 | && (h->flags & XCOFF_ENTRY) == 0 | |
3313 | && (h->flags & XCOFF_EXPORT) == 0) | |
116c20d2 | 3314 | return TRUE; |
252b5132 | 3315 | |
116c20d2 NC |
3316 | /* We need to add this symbol to the .loader symbols. */ |
3317 | ||
3318 | BFD_ASSERT (h->ldsym == NULL); | |
3319 | amt = sizeof (struct internal_ldsym); | |
3320 | h->ldsym = bfd_zalloc (ldinfo->output_bfd, amt); | |
3321 | if (h->ldsym == NULL) | |
252b5132 | 3322 | { |
116c20d2 NC |
3323 | ldinfo->failed = TRUE; |
3324 | return FALSE; | |
3325 | } | |
252b5132 | 3326 | |
116c20d2 | 3327 | if ((h->flags & XCOFF_IMPORT) != 0) |
670562e9 RS |
3328 | { |
3329 | /* Give imported descriptors class XMC_DS rather than XMC_UA. */ | |
3330 | if ((h->flags & XCOFF_DESCRIPTOR) != 0) | |
3331 | h->smclas = XMC_DS; | |
3332 | h->ldsym->l_ifile = h->ldindx; | |
3333 | } | |
252b5132 | 3334 | |
116c20d2 NC |
3335 | /* The first 3 symbol table indices are reserved to indicate the |
3336 | data, text and bss sections. */ | |
3337 | h->ldindx = ldinfo->ldsym_count + 3; | |
252b5132 | 3338 | |
116c20d2 | 3339 | ++ldinfo->ldsym_count; |
252b5132 | 3340 | |
116c20d2 NC |
3341 | if (! bfd_xcoff_put_ldsymbol_name (ldinfo->output_bfd, ldinfo, |
3342 | h->ldsym, h->root.root.string)) | |
3343 | return FALSE; | |
252b5132 | 3344 | |
116c20d2 | 3345 | h->flags |= XCOFF_BUILT_LDSYM; |
b3d1832c RS |
3346 | return TRUE; |
3347 | } | |
3348 | ||
3349 | /* An xcoff_htab_traverse callback that is called for each symbol | |
3350 | once garbage collection is complete. */ | |
3351 | ||
3352 | static bfd_boolean | |
3353 | xcoff_post_gc_symbol (struct xcoff_link_hash_entry *h, void * p) | |
3354 | { | |
3355 | struct xcoff_loader_info *ldinfo = (struct xcoff_loader_info *) p; | |
3356 | ||
3357 | if (h->root.type == bfd_link_hash_warning) | |
3358 | h = (struct xcoff_link_hash_entry *) h->root.u.i.link; | |
3359 | ||
3360 | /* __rtinit, this symbol has special handling. */ | |
3361 | if (h->flags & XCOFF_RTINIT) | |
3362 | return TRUE; | |
3363 | ||
b3d1832c RS |
3364 | /* We don't want to garbage collect symbols which are not defined in |
3365 | XCOFF files. This is a convenient place to mark them. */ | |
3366 | if (xcoff_hash_table (ldinfo->info)->gc | |
3367 | && (h->flags & XCOFF_MARK) == 0 | |
3368 | && (h->root.type == bfd_link_hash_defined | |
3369 | || h->root.type == bfd_link_hash_defweak) | |
3370 | && (h->root.u.def.section->owner == NULL | |
3371 | || (h->root.u.def.section->owner->xvec | |
3372 | != ldinfo->info->output_bfd->xvec))) | |
3373 | h->flags |= XCOFF_MARK; | |
3374 | ||
3375 | /* Skip discarded symbols. */ | |
3376 | if (xcoff_hash_table (ldinfo->info)->gc | |
3377 | && (h->flags & XCOFF_MARK) == 0) | |
3378 | return TRUE; | |
3379 | ||
3380 | /* If this is still a common symbol, and it wasn't garbage | |
3381 | collected, we need to actually allocate space for it in the .bss | |
3382 | section. */ | |
3383 | if (h->root.type == bfd_link_hash_common | |
3384 | && h->root.u.c.p->section->size == 0) | |
3385 | { | |
3386 | BFD_ASSERT (bfd_is_com_section (h->root.u.c.p->section)); | |
3387 | h->root.u.c.p->section->size = h->root.u.c.size; | |
3388 | } | |
3389 | ||
3390 | if (xcoff_hash_table (ldinfo->info)->loader_section) | |
3391 | { | |
ee698300 | 3392 | if (xcoff_auto_export_p (ldinfo->info, h, ldinfo->auto_export_flags)) |
b3d1832c RS |
3393 | h->flags |= XCOFF_EXPORT; |
3394 | ||
3395 | if (!xcoff_build_ldsym (ldinfo, h)) | |
3396 | return FALSE; | |
3397 | } | |
252b5132 | 3398 | |
116c20d2 NC |
3399 | return TRUE; |
3400 | } | |
e450936a RS |
3401 | |
3402 | /* INPUT_BFD includes XCOFF symbol ISYM, which is associated with linker | |
3403 | hash table entry H and csect CSECT. AUX contains ISYM's auxillary | |
3404 | csect information, if any. NAME is the function's name if the name | |
3405 | is stored in the .debug section, otherwise it is null. | |
3406 | ||
3407 | Return 1 if we should include an appropriately-adjusted ISYM | |
3408 | in the output file, 0 if we should discard ISYM, or -1 if an | |
3409 | error occured. */ | |
3410 | ||
3411 | static int | |
3412 | xcoff_keep_symbol_p (struct bfd_link_info *info, bfd *input_bfd, | |
3413 | struct internal_syment *isym, | |
3414 | union internal_auxent *aux, | |
3415 | struct xcoff_link_hash_entry *h, | |
3416 | asection *csect, const char *name) | |
3417 | { | |
3418 | int smtyp; | |
3419 | ||
3420 | /* If we are skipping this csect, we want to strip the symbol too. */ | |
3421 | if (csect == NULL) | |
3422 | return 0; | |
3423 | ||
3424 | /* Likewise if we garbage-collected the csect. */ | |
3425 | if (xcoff_hash_table (info)->gc | |
3426 | && !bfd_is_abs_section (csect) | |
3427 | && !bfd_is_und_section (csect) | |
3428 | && (csect->flags & SEC_MARK) == 0) | |
3429 | return 0; | |
3430 | ||
3431 | /* An XCOFF linker always removes C_STAT symbols. */ | |
3432 | if (isym->n_sclass == C_STAT) | |
3433 | return 0; | |
3434 | ||
3435 | /* We generate the TOC anchor separately. */ | |
3436 | if (isym->n_sclass == C_HIDEXT | |
3437 | && aux->x_csect.x_smclas == XMC_TC0) | |
3438 | return 0; | |
3439 | ||
3440 | /* If we are stripping all symbols, we want to discard this one. */ | |
3441 | if (info->strip == strip_all) | |
3442 | return 0; | |
3443 | ||
5b49f6dc | 3444 | /* Discard symbols that are defined elsewhere. */ |
8602d4fe | 3445 | if (EXTERN_SYM_P (isym->n_sclass)) |
5b49f6dc RS |
3446 | { |
3447 | if ((h->flags & XCOFF_ALLOCATED) != 0) | |
3448 | return 0; | |
3449 | if (!xcoff_final_definition_p (input_bfd, h, csect)) | |
3450 | return 0; | |
3451 | } | |
e450936a RS |
3452 | |
3453 | /* If we're discarding local symbols, check whether ISYM is local. */ | |
5b49f6dc | 3454 | smtyp = SMTYP_SMTYP (aux->x_csect.x_smtyp); |
e450936a | 3455 | if (info->discard == discard_all |
8602d4fe | 3456 | && !EXTERN_SYM_P (isym->n_sclass) |
e450936a RS |
3457 | && (isym->n_sclass != C_HIDEXT || smtyp != XTY_SD)) |
3458 | return 0; | |
3459 | ||
3460 | /* If we're stripping debugging symbols, check whether ISYM is one. */ | |
3461 | if (info->strip == strip_debugger | |
3462 | && isym->n_scnum == N_DEBUG) | |
3463 | return 0; | |
3464 | ||
3465 | /* If we are stripping symbols based on name, check how ISYM's | |
3466 | name should be handled. */ | |
3467 | if (info->strip == strip_some | |
3468 | || info->discard == discard_l) | |
3469 | { | |
3470 | char buf[SYMNMLEN + 1]; | |
3471 | ||
3472 | if (name == NULL) | |
3473 | { | |
3474 | name = _bfd_coff_internal_syment_name (input_bfd, isym, buf); | |
3475 | if (name == NULL) | |
3476 | return -1; | |
3477 | } | |
3478 | ||
3479 | if (info->strip == strip_some | |
3480 | && bfd_hash_lookup (info->keep_hash, name, FALSE, FALSE) == NULL) | |
3481 | return 0; | |
3482 | ||
3483 | if (info->discard == discard_l | |
8602d4fe | 3484 | && !EXTERN_SYM_P (isym->n_sclass) |
e450936a RS |
3485 | && (isym->n_sclass != C_HIDEXT || smtyp != XTY_SD) |
3486 | && bfd_is_local_label_name (input_bfd, name)) | |
3487 | return 0; | |
3488 | } | |
3489 | ||
3490 | return 1; | |
3491 | } | |
3492 | ||
b3d1832c RS |
3493 | /* Lay out the .loader section, filling in the header and the import paths. |
3494 | LIBPATH is as for bfd_xcoff_size_dynamic_sections. */ | |
3495 | ||
3496 | static bfd_boolean | |
3497 | xcoff_build_loader_section (struct xcoff_loader_info *ldinfo, | |
3498 | const char *libpath) | |
3499 | { | |
3500 | bfd *output_bfd; | |
3501 | struct xcoff_link_hash_table *htab; | |
3502 | struct internal_ldhdr *ldhdr; | |
3503 | struct xcoff_import_file *fl; | |
3504 | bfd_size_type stoff; | |
3505 | size_t impsize, impcount; | |
3506 | asection *lsec; | |
3507 | char *out; | |
3508 | ||
3509 | /* Work out the size of the import file names. Each import file ID | |
3510 | consists of three null terminated strings: the path, the file | |
3511 | name, and the archive member name. The first entry in the list | |
3512 | of names is the path to use to find objects, which the linker has | |
3513 | passed in as the libpath argument. For some reason, the path | |
3514 | entry in the other import file names appears to always be empty. */ | |
3515 | output_bfd = ldinfo->output_bfd; | |
3516 | htab = xcoff_hash_table (ldinfo->info); | |
3517 | impsize = strlen (libpath) + 3; | |
3518 | impcount = 1; | |
3519 | for (fl = htab->imports; fl != NULL; fl = fl->next) | |
3520 | { | |
3521 | ++impcount; | |
3522 | impsize += (strlen (fl->path) | |
3523 | + strlen (fl->file) | |
3524 | + strlen (fl->member) | |
3525 | + 3); | |
3526 | } | |
3527 | ||
3528 | /* Set up the .loader section header. */ | |
3529 | ldhdr = &htab->ldhdr; | |
3530 | ldhdr->l_version = bfd_xcoff_ldhdr_version(output_bfd); | |
3531 | ldhdr->l_nsyms = ldinfo->ldsym_count; | |
3532 | ldhdr->l_nreloc = htab->ldrel_count; | |
3533 | ldhdr->l_istlen = impsize; | |
3534 | ldhdr->l_nimpid = impcount; | |
3535 | ldhdr->l_impoff = (bfd_xcoff_ldhdrsz (output_bfd) | |
3536 | + ldhdr->l_nsyms * bfd_xcoff_ldsymsz (output_bfd) | |
3537 | + ldhdr->l_nreloc * bfd_xcoff_ldrelsz (output_bfd)); | |
3538 | ldhdr->l_stlen = ldinfo->string_size; | |
3539 | stoff = ldhdr->l_impoff + impsize; | |
3540 | if (ldinfo->string_size == 0) | |
3541 | ldhdr->l_stoff = 0; | |
3542 | else | |
3543 | ldhdr->l_stoff = stoff; | |
3544 | ||
3545 | /* 64 bit elements to ldhdr | |
3546 | The swap out routine for 32 bit will ignore them. | |
3547 | Nothing fancy, symbols come after the header and relocs come | |
3548 | after symbols. */ | |
3549 | ldhdr->l_symoff = bfd_xcoff_ldhdrsz (output_bfd); | |
3550 | ldhdr->l_rldoff = (bfd_xcoff_ldhdrsz (output_bfd) | |
3551 | + ldhdr->l_nsyms * bfd_xcoff_ldsymsz (output_bfd)); | |
3552 | ||
3553 | /* We now know the final size of the .loader section. Allocate | |
3554 | space for it. */ | |
3555 | lsec = htab->loader_section; | |
3556 | lsec->size = stoff + ldhdr->l_stlen; | |
3557 | lsec->contents = bfd_zalloc (output_bfd, lsec->size); | |
3558 | if (lsec->contents == NULL) | |
3559 | return FALSE; | |
3560 | ||
3561 | /* Set up the header. */ | |
3562 | bfd_xcoff_swap_ldhdr_out (output_bfd, ldhdr, lsec->contents); | |
3563 | ||
3564 | /* Set up the import file names. */ | |
3565 | out = (char *) lsec->contents + ldhdr->l_impoff; | |
3566 | strcpy (out, libpath); | |
3567 | out += strlen (libpath) + 1; | |
3568 | *out++ = '\0'; | |
3569 | *out++ = '\0'; | |
3570 | for (fl = htab->imports; fl != NULL; fl = fl->next) | |
3571 | { | |
3572 | const char *s; | |
3573 | ||
3574 | s = fl->path; | |
3575 | while ((*out++ = *s++) != '\0') | |
3576 | ; | |
3577 | s = fl->file; | |
3578 | while ((*out++ = *s++) != '\0') | |
3579 | ; | |
3580 | s = fl->member; | |
3581 | while ((*out++ = *s++) != '\0') | |
3582 | ; | |
3583 | } | |
3584 | ||
3585 | BFD_ASSERT ((bfd_size_type) ((bfd_byte *) out - lsec->contents) == stoff); | |
3586 | ||
3587 | /* Set up the symbol string table. */ | |
3588 | if (ldinfo->string_size > 0) | |
3589 | { | |
3590 | memcpy (out, ldinfo->strings, ldinfo->string_size); | |
3591 | free (ldinfo->strings); | |
3592 | ldinfo->strings = NULL; | |
3593 | } | |
3594 | ||
3595 | /* We can't set up the symbol table or the relocs yet, because we | |
3596 | don't yet know the final position of the various sections. The | |
3597 | .loader symbols are written out when the corresponding normal | |
3598 | symbols are written out in xcoff_link_input_bfd or | |
3599 | xcoff_write_global_symbol. The .loader relocs are written out | |
3600 | when the corresponding normal relocs are handled in | |
3601 | xcoff_link_input_bfd. */ | |
3602 | ||
3603 | return TRUE; | |
3604 | } | |
3605 | ||
116c20d2 NC |
3606 | /* Build the .loader section. This is called by the XCOFF linker |
3607 | emulation before_allocation routine. We must set the size of the | |
3608 | .loader section before the linker lays out the output file. | |
3609 | LIBPATH is the library path to search for shared objects; this is | |
3610 | normally built from the -L arguments passed to the linker. ENTRY | |
3611 | is the name of the entry point symbol (the -e linker option). | |
3612 | FILE_ALIGN is the alignment to use for sections within the file | |
3613 | (the -H linker option). MAXSTACK is the maximum stack size (the | |
3614 | -bmaxstack linker option). MAXDATA is the maximum data size (the | |
3615 | -bmaxdata linker option). GC is whether to do garbage collection | |
3616 | (the -bgc linker option). MODTYPE is the module type (the | |
3617 | -bmodtype linker option). TEXTRO is whether the text section must | |
b64232cc RS |
3618 | be read only (the -btextro linker option). AUTO_EXPORT_FLAGS |
3619 | is a mask of XCOFF_EXPALL and XCOFF_EXPFULL. SPECIAL_SECTIONS | |
3620 | is set by this routine to csects with magic names like _end. */ | |
252b5132 | 3621 | |
116c20d2 NC |
3622 | bfd_boolean |
3623 | bfd_xcoff_size_dynamic_sections (bfd *output_bfd, | |
3624 | struct bfd_link_info *info, | |
3625 | const char *libpath, | |
3626 | const char *entry, | |
3627 | unsigned long file_align, | |
3628 | unsigned long maxstack, | |
3629 | unsigned long maxdata, | |
3630 | bfd_boolean gc, | |
3631 | int modtype, | |
3632 | bfd_boolean textro, | |
b64232cc | 3633 | unsigned int auto_export_flags, |
116c20d2 NC |
3634 | asection **special_sections, |
3635 | bfd_boolean rtld) | |
3636 | { | |
116c20d2 NC |
3637 | struct xcoff_loader_info ldinfo; |
3638 | int i; | |
116c20d2 NC |
3639 | asection *sec; |
3640 | bfd *sub; | |
3641 | struct bfd_strtab_hash *debug_strtab; | |
3642 | bfd_byte *debug_contents = NULL; | |
3643 | bfd_size_type amt; | |
252b5132 | 3644 | |
116c20d2 NC |
3645 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
3646 | { | |
3647 | for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) | |
3648 | special_sections[i] = NULL; | |
3649 | return TRUE; | |
3650 | } | |
252b5132 | 3651 | |
116c20d2 NC |
3652 | ldinfo.failed = FALSE; |
3653 | ldinfo.output_bfd = output_bfd; | |
3654 | ldinfo.info = info; | |
b64232cc | 3655 | ldinfo.auto_export_flags = auto_export_flags; |
116c20d2 NC |
3656 | ldinfo.ldsym_count = 0; |
3657 | ldinfo.string_size = 0; | |
3658 | ldinfo.strings = NULL; | |
3659 | ldinfo.string_alc = 0; | |
252b5132 | 3660 | |
116c20d2 NC |
3661 | xcoff_data (output_bfd)->maxstack = maxstack; |
3662 | xcoff_data (output_bfd)->maxdata = maxdata; | |
3663 | xcoff_data (output_bfd)->modtype = modtype; | |
eb1e0e80 | 3664 | |
116c20d2 NC |
3665 | xcoff_hash_table (info)->file_align = file_align; |
3666 | xcoff_hash_table (info)->textro = textro; | |
858ef0ce | 3667 | xcoff_hash_table (info)->rtld = rtld; |
252b5132 | 3668 | |
116c20d2 | 3669 | /* __rtinit */ |
b3d1832c RS |
3670 | if (xcoff_hash_table (info)->loader_section |
3671 | && (info->init_function || info->fini_function || rtld)) | |
116c20d2 NC |
3672 | { |
3673 | struct xcoff_link_hash_entry *hsym; | |
3674 | struct internal_ldsym *ldsym; | |
252b5132 | 3675 | |
116c20d2 NC |
3676 | hsym = xcoff_link_hash_lookup (xcoff_hash_table (info), |
3677 | "__rtinit", FALSE, FALSE, TRUE); | |
3678 | if (hsym == NULL) | |
252b5132 | 3679 | { |
116c20d2 NC |
3680 | (*_bfd_error_handler) |
3681 | (_("error: undefined symbol __rtinit")); | |
3682 | return FALSE; | |
252b5132 | 3683 | } |
252b5132 | 3684 | |
116c20d2 NC |
3685 | xcoff_mark_symbol (info, hsym); |
3686 | hsym->flags |= (XCOFF_DEF_REGULAR | XCOFF_RTINIT); | |
252b5132 | 3687 | |
116c20d2 NC |
3688 | /* __rtinit initialized. */ |
3689 | amt = sizeof (* ldsym); | |
3690 | ldsym = bfd_malloc (amt); | |
252b5132 | 3691 | |
116c20d2 NC |
3692 | ldsym->l_value = 0; /* Will be filled in later. */ |
3693 | ldsym->l_scnum = 2; /* Data section. */ | |
3694 | ldsym->l_smtype = XTY_SD; /* Csect section definition. */ | |
3695 | ldsym->l_smclas = 5; /* .rw. */ | |
3696 | ldsym->l_ifile = 0; /* Special system loader symbol. */ | |
3697 | ldsym->l_parm = 0; /* NA. */ | |
252b5132 | 3698 | |
116c20d2 NC |
3699 | /* Force __rtinit to be the first symbol in the loader symbol table |
3700 | See xcoff_build_ldsyms | |
b34976b6 | 3701 | |
116c20d2 NC |
3702 | The first 3 symbol table indices are reserved to indicate the data, |
3703 | text and bss sections. */ | |
3704 | BFD_ASSERT (0 == ldinfo.ldsym_count); | |
9a4c7f16 | 3705 | |
116c20d2 NC |
3706 | hsym->ldindx = 3; |
3707 | ldinfo.ldsym_count = 1; | |
3708 | hsym->ldsym = ldsym; | |
9a4c7f16 | 3709 | |
116c20d2 NC |
3710 | if (! bfd_xcoff_put_ldsymbol_name (ldinfo.output_bfd, &ldinfo, |
3711 | hsym->ldsym, hsym->root.root.string)) | |
3712 | return FALSE; | |
9a4c7f16 | 3713 | |
116c20d2 NC |
3714 | /* This symbol is written out by xcoff_write_global_symbol |
3715 | Set stuff up so xcoff_write_global_symbol logic works. */ | |
3716 | hsym->flags |= XCOFF_DEF_REGULAR | XCOFF_MARK; | |
3717 | hsym->root.type = bfd_link_hash_defined; | |
3718 | hsym->root.u.def.value = 0; | |
3719 | } | |
9a4c7f16 | 3720 | |
116c20d2 | 3721 | /* Garbage collect unused sections. */ |
7d504122 | 3722 | if (info->relocatable || !gc) |
116c20d2 NC |
3723 | { |
3724 | gc = FALSE; | |
3725 | xcoff_hash_table (info)->gc = FALSE; | |
9a4c7f16 | 3726 | |
116c20d2 NC |
3727 | /* We still need to call xcoff_mark, in order to set ldrel_count |
3728 | correctly. */ | |
3729 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
3730 | { | |
3731 | asection *o; | |
9a4c7f16 | 3732 | |
116c20d2 NC |
3733 | for (o = sub->sections; o != NULL; o = o->next) |
3734 | { | |
47dfb2ca RS |
3735 | /* We shouldn't unconditionaly mark the TOC section. |
3736 | The output file should only have a TOC if either | |
3737 | (a) one of the input files did or (b) we end up | |
3738 | creating TOC references as part of the link process. */ | |
3739 | if (o != xcoff_hash_table (info)->toc_section | |
3740 | && (o->flags & SEC_MARK) == 0) | |
116c20d2 NC |
3741 | { |
3742 | if (! xcoff_mark (info, o)) | |
3743 | goto error_return; | |
3744 | } | |
3745 | } | |
3746 | } | |
3747 | } | |
3748 | else | |
3749 | { | |
7d504122 RS |
3750 | if (entry != NULL |
3751 | && !xcoff_mark_symbol_by_name (info, entry, XCOFF_ENTRY)) | |
3752 | goto error_return; | |
3753 | if (info->init_function != NULL | |
3754 | && !xcoff_mark_symbol_by_name (info, info->init_function, 0)) | |
3755 | goto error_return; | |
3756 | if (info->fini_function != NULL | |
3757 | && !xcoff_mark_symbol_by_name (info, info->fini_function, 0)) | |
116c20d2 | 3758 | goto error_return; |
b64232cc RS |
3759 | if (auto_export_flags != 0) |
3760 | { | |
3761 | xcoff_link_hash_traverse (xcoff_hash_table (info), | |
3762 | xcoff_mark_auto_exports, &ldinfo); | |
3763 | if (ldinfo.failed) | |
3764 | goto error_return; | |
3765 | } | |
116c20d2 NC |
3766 | xcoff_sweep (info); |
3767 | xcoff_hash_table (info)->gc = TRUE; | |
3768 | } | |
9a4c7f16 | 3769 | |
116c20d2 NC |
3770 | /* Return special sections to the caller. */ |
3771 | for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) | |
3772 | { | |
3773 | sec = xcoff_hash_table (info)->special_sections[i]; | |
252b5132 | 3774 | |
116c20d2 NC |
3775 | if (sec != NULL |
3776 | && gc | |
3777 | && (sec->flags & SEC_MARK) == 0) | |
3778 | sec = NULL; | |
252b5132 | 3779 | |
116c20d2 NC |
3780 | special_sections[i] = sec; |
3781 | } | |
e92d460e | 3782 | |
116c20d2 NC |
3783 | if (info->input_bfds == NULL) |
3784 | /* I'm not sure what to do in this bizarre case. */ | |
3785 | return TRUE; | |
dc810e39 | 3786 | |
b3d1832c | 3787 | xcoff_link_hash_traverse (xcoff_hash_table (info), xcoff_post_gc_symbol, |
116c20d2 NC |
3788 | (void *) &ldinfo); |
3789 | if (ldinfo.failed) | |
3790 | goto error_return; | |
252b5132 | 3791 | |
b3d1832c RS |
3792 | if (xcoff_hash_table (info)->loader_section |
3793 | && !xcoff_build_loader_section (&ldinfo, libpath)) | |
116c20d2 | 3794 | goto error_return; |
252b5132 | 3795 | |
116c20d2 NC |
3796 | /* Allocate space for the magic sections. */ |
3797 | sec = xcoff_hash_table (info)->linkage_section; | |
3798 | if (sec->size > 0) | |
3799 | { | |
3800 | sec->contents = bfd_zalloc (output_bfd, sec->size); | |
3801 | if (sec->contents == NULL) | |
3802 | goto error_return; | |
252b5132 | 3803 | } |
116c20d2 NC |
3804 | sec = xcoff_hash_table (info)->toc_section; |
3805 | if (sec->size > 0) | |
252b5132 | 3806 | { |
116c20d2 NC |
3807 | sec->contents = bfd_zalloc (output_bfd, sec->size); |
3808 | if (sec->contents == NULL) | |
3809 | goto error_return; | |
3810 | } | |
3811 | sec = xcoff_hash_table (info)->descriptor_section; | |
3812 | if (sec->size > 0) | |
3813 | { | |
3814 | sec->contents = bfd_zalloc (output_bfd, sec->size); | |
3815 | if (sec->contents == NULL) | |
3816 | goto error_return; | |
3817 | } | |
252b5132 | 3818 | |
e450936a RS |
3819 | /* Now that we've done garbage collection, decide which symbols to keep, |
3820 | and figure out the contents of the .debug section. */ | |
116c20d2 | 3821 | debug_strtab = xcoff_hash_table (info)->debug_strtab; |
252b5132 | 3822 | |
116c20d2 NC |
3823 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) |
3824 | { | |
3825 | asection *subdeb; | |
3826 | bfd_size_type symcount; | |
e450936a | 3827 | long *debug_index; |
116c20d2 | 3828 | asection **csectpp; |
3df13c4a | 3829 | unsigned int *lineno_counts; |
e450936a | 3830 | struct xcoff_link_hash_entry **sym_hash; |
116c20d2 NC |
3831 | bfd_byte *esym, *esymend; |
3832 | bfd_size_type symesz; | |
beb1bf64 | 3833 | |
f13a99db | 3834 | if (sub->xvec != info->output_bfd->xvec) |
116c20d2 | 3835 | continue; |
252b5132 | 3836 | |
e450936a RS |
3837 | if ((sub->flags & DYNAMIC) != 0 |
3838 | && !info->static_link) | |
3839 | continue; | |
252b5132 | 3840 | |
116c20d2 NC |
3841 | if (! _bfd_coff_get_external_symbols (sub)) |
3842 | goto error_return; | |
252b5132 | 3843 | |
116c20d2 | 3844 | symcount = obj_raw_syment_count (sub); |
e450936a | 3845 | debug_index = bfd_zalloc (sub, symcount * sizeof (long)); |
116c20d2 NC |
3846 | if (debug_index == NULL) |
3847 | goto error_return; | |
3848 | xcoff_data (sub)->debug_indices = debug_index; | |
252b5132 | 3849 | |
e450936a RS |
3850 | if (info->strip == strip_all |
3851 | || info->strip == strip_debugger | |
3852 | || info->discard == discard_all) | |
3853 | /* We're stripping all debugging information, so there's no need | |
3854 | to read SUB's .debug section. */ | |
3855 | subdeb = NULL; | |
3856 | else | |
3857 | { | |
3858 | /* Grab the contents of SUB's .debug section, if any. */ | |
3859 | subdeb = bfd_get_section_by_name (sub, ".debug"); | |
3860 | if (subdeb != NULL && subdeb->size > 0) | |
3861 | { | |
3862 | /* We use malloc and copy the names into the debug | |
3863 | stringtab, rather than bfd_alloc, because I expect | |
3864 | that, when linking many files together, many of the | |
3865 | strings will be the same. Storing the strings in the | |
3866 | hash table should save space in this case. */ | |
3867 | if (!bfd_malloc_and_get_section (sub, subdeb, &debug_contents)) | |
3868 | goto error_return; | |
3869 | } | |
3870 | } | |
252b5132 | 3871 | |
116c20d2 | 3872 | csectpp = xcoff_data (sub)->csects; |
3df13c4a | 3873 | lineno_counts = xcoff_data (sub)->lineno_counts; |
e450936a RS |
3874 | sym_hash = obj_xcoff_sym_hashes (sub); |
3875 | symesz = bfd_coff_symesz (sub); | |
3876 | esym = (bfd_byte *) obj_coff_external_syms (sub); | |
3877 | esymend = esym + symcount * symesz; | |
252b5132 | 3878 | |
e450936a | 3879 | while (esym < esymend) |
116c20d2 | 3880 | { |
e450936a RS |
3881 | struct internal_syment sym; |
3882 | union internal_auxent aux; | |
3df13c4a | 3883 | asection *csect; |
e450936a RS |
3884 | const char *name; |
3885 | int keep_p; | |
3886 | ||
3887 | bfd_coff_swap_sym_in (sub, esym, &sym); | |
252b5132 | 3888 | |
8602d4fe RS |
3889 | /* Read in the csect information, if any. */ |
3890 | if (CSECT_SYM_P (sym.n_sclass)) | |
116c20d2 | 3891 | { |
e450936a RS |
3892 | BFD_ASSERT (sym.n_numaux > 0); |
3893 | bfd_coff_swap_aux_in (sub, esym + symesz * sym.n_numaux, | |
3894 | sym.n_type, sym.n_sclass, | |
3895 | sym.n_numaux - 1, sym.n_numaux, &aux); | |
3896 | } | |
252b5132 | 3897 | |
e450936a RS |
3898 | /* If this symbol's name is stored in the debug section, |
3899 | get a pointer to it. */ | |
3900 | if (debug_contents != NULL | |
3901 | && sym._n._n_n._n_zeroes == 0 | |
3902 | && bfd_coff_symname_in_debug (sub, &sym)) | |
3903 | name = (const char *) debug_contents + sym._n._n_n._n_offset; | |
3904 | else | |
3905 | name = NULL; | |
252b5132 | 3906 | |
e450936a | 3907 | /* Decide whether to copy this symbol to the output file. */ |
3df13c4a | 3908 | csect = *csectpp; |
e450936a | 3909 | keep_p = xcoff_keep_symbol_p (info, sub, &sym, &aux, |
3df13c4a | 3910 | *sym_hash, csect, name); |
e450936a RS |
3911 | if (keep_p < 0) |
3912 | return FALSE; | |
252b5132 | 3913 | |
e450936a RS |
3914 | if (!keep_p) |
3915 | /* Use a debug_index of -2 to record that a symbol should | |
3916 | be stripped. */ | |
3917 | *debug_index = -2; | |
3918 | else | |
3919 | { | |
3920 | /* See whether we should store the symbol name in the | |
3921 | output .debug section. */ | |
3922 | if (name != NULL) | |
116c20d2 | 3923 | { |
116c20d2 | 3924 | bfd_size_type indx; |
252b5132 | 3925 | |
116c20d2 NC |
3926 | indx = _bfd_stringtab_add (debug_strtab, name, TRUE, TRUE); |
3927 | if (indx == (bfd_size_type) -1) | |
3928 | goto error_return; | |
3929 | *debug_index = indx; | |
3930 | } | |
e450936a RS |
3931 | else |
3932 | *debug_index = -1; | |
5b49f6dc RS |
3933 | if (*sym_hash != 0) |
3934 | (*sym_hash)->flags |= XCOFF_ALLOCATED; | |
3df13c4a RS |
3935 | if (*lineno_counts > 0) |
3936 | csect->output_section->lineno_count += *lineno_counts; | |
116c20d2 | 3937 | } |
e450936a RS |
3938 | |
3939 | esym += (sym.n_numaux + 1) * symesz; | |
3940 | csectpp += sym.n_numaux + 1; | |
3941 | sym_hash += sym.n_numaux + 1; | |
3df13c4a | 3942 | lineno_counts += sym.n_numaux + 1; |
e450936a | 3943 | debug_index += sym.n_numaux + 1; |
116c20d2 NC |
3944 | } |
3945 | ||
e450936a RS |
3946 | if (debug_contents) |
3947 | { | |
3948 | free (debug_contents); | |
3949 | debug_contents = NULL; | |
116c20d2 | 3950 | |
e450936a RS |
3951 | /* Clear the size of subdeb, so that it is not included directly |
3952 | in the output file. */ | |
3953 | subdeb->size = 0; | |
3954 | } | |
116c20d2 NC |
3955 | |
3956 | if (! info->keep_memory) | |
3957 | { | |
3958 | if (! _bfd_coff_free_symbols (sub)) | |
3959 | goto error_return; | |
3960 | } | |
dc810e39 | 3961 | } |
252b5132 | 3962 | |
116c20d2 NC |
3963 | if (info->strip != strip_all) |
3964 | xcoff_hash_table (info)->debug_section->size = | |
3965 | _bfd_stringtab_size (debug_strtab); | |
252b5132 | 3966 | |
b34976b6 | 3967 | return TRUE; |
116c20d2 NC |
3968 | |
3969 | error_return: | |
3970 | if (ldinfo.strings != NULL) | |
3971 | free (ldinfo.strings); | |
3972 | if (debug_contents != NULL) | |
3973 | free (debug_contents); | |
3974 | return FALSE; | |
252b5132 | 3975 | } |
252b5132 | 3976 | |
b34976b6 | 3977 | bfd_boolean |
116c20d2 NC |
3978 | bfd_xcoff_link_generate_rtinit (bfd *abfd, |
3979 | const char *init, | |
3980 | const char *fini, | |
3981 | bfd_boolean rtld) | |
252b5132 | 3982 | { |
116c20d2 | 3983 | struct bfd_in_memory *bim; |
252b5132 | 3984 | |
116c20d2 NC |
3985 | bim = bfd_malloc ((bfd_size_type) sizeof (* bim)); |
3986 | if (bim == NULL) | |
3987 | return FALSE; | |
252b5132 | 3988 | |
116c20d2 NC |
3989 | bim->size = 0; |
3990 | bim->buffer = 0; | |
252b5132 | 3991 | |
116c20d2 NC |
3992 | abfd->link_next = 0; |
3993 | abfd->format = bfd_object; | |
3994 | abfd->iostream = (void *) bim; | |
3995 | abfd->flags = BFD_IN_MEMORY; | |
65077aa8 | 3996 | abfd->iovec = &_bfd_memory_iovec; |
116c20d2 | 3997 | abfd->direction = write_direction; |
65077aa8 | 3998 | abfd->origin = 0; |
116c20d2 | 3999 | abfd->where = 0; |
252b5132 | 4000 | |
116c20d2 NC |
4001 | if (! bfd_xcoff_generate_rtinit (abfd, init, fini, rtld)) |
4002 | return FALSE; | |
252b5132 | 4003 | |
116c20d2 NC |
4004 | /* need to reset to unknown or it will not be read back in correctly */ |
4005 | abfd->format = bfd_unknown; | |
4006 | abfd->direction = read_direction; | |
4007 | abfd->where = 0; | |
252b5132 | 4008 | |
116c20d2 NC |
4009 | return TRUE; |
4010 | } | |
4011 | \f | |
b3d1832c RS |
4012 | /* Return the section that defines H. Return null if no section does. */ |
4013 | ||
4014 | static asection * | |
4015 | xcoff_symbol_section (struct xcoff_link_hash_entry *h) | |
4016 | { | |
4017 | switch (h->root.type) | |
4018 | { | |
4019 | case bfd_link_hash_defined: | |
4020 | case bfd_link_hash_defweak: | |
4021 | return h->root.u.def.section; | |
4022 | ||
4023 | case bfd_link_hash_common: | |
4024 | return h->root.u.c.p->section; | |
4025 | ||
4026 | default: | |
4027 | return NULL; | |
4028 | } | |
4029 | } | |
4030 | ||
4031 | /* Add a .loader relocation for input relocation IREL. If the loader | |
4032 | relocation should be against an output section, HSEC points to the | |
4033 | input section that IREL is against, otherwise HSEC is null. H is the | |
4034 | symbol that IREL is against, or null if it isn't against a global symbol. | |
4035 | REFERENCE_BFD is the bfd to use in error messages about the relocation. */ | |
4036 | ||
4037 | static bfd_boolean | |
baf9bed3 | 4038 | xcoff_create_ldrel (bfd *output_bfd, struct xcoff_final_link_info *flinfo, |
b3d1832c RS |
4039 | asection *output_section, bfd *reference_bfd, |
4040 | struct internal_reloc *irel, asection *hsec, | |
4041 | struct xcoff_link_hash_entry *h) | |
4042 | { | |
4043 | struct internal_ldrel ldrel; | |
4044 | ||
4045 | ldrel.l_vaddr = irel->r_vaddr; | |
4046 | if (hsec != NULL) | |
4047 | { | |
4048 | const char *secname; | |
4049 | ||
4050 | secname = hsec->output_section->name; | |
4051 | if (strcmp (secname, ".text") == 0) | |
4052 | ldrel.l_symndx = 0; | |
4053 | else if (strcmp (secname, ".data") == 0) | |
4054 | ldrel.l_symndx = 1; | |
4055 | else if (strcmp (secname, ".bss") == 0) | |
4056 | ldrel.l_symndx = 2; | |
4057 | else | |
4058 | { | |
4059 | (*_bfd_error_handler) | |
4060 | (_("%B: loader reloc in unrecognized section `%s'"), | |
4061 | reference_bfd, secname); | |
4062 | bfd_set_error (bfd_error_nonrepresentable_section); | |
4063 | return FALSE; | |
4064 | } | |
4065 | } | |
4066 | else if (h != NULL) | |
4067 | { | |
4068 | if (h->ldindx < 0) | |
4069 | { | |
4070 | (*_bfd_error_handler) | |
4071 | (_("%B: `%s' in loader reloc but not loader sym"), | |
4072 | reference_bfd, h->root.root.string); | |
4073 | bfd_set_error (bfd_error_bad_value); | |
4074 | return FALSE; | |
4075 | } | |
4076 | ldrel.l_symndx = h->ldindx; | |
4077 | } | |
4078 | else | |
4079 | ldrel.l_symndx = -(bfd_size_type) 1; | |
4080 | ||
4081 | ldrel.l_rtype = (irel->r_size << 8) | irel->r_type; | |
4082 | ldrel.l_rsecnm = output_section->target_index; | |
baf9bed3 | 4083 | if (xcoff_hash_table (flinfo->info)->textro |
b3d1832c RS |
4084 | && strcmp (output_section->name, ".text") == 0) |
4085 | { | |
4086 | (*_bfd_error_handler) | |
4087 | (_("%B: loader reloc in read-only section %A"), | |
4088 | reference_bfd, output_section); | |
4089 | bfd_set_error (bfd_error_invalid_operation); | |
4090 | return FALSE; | |
4091 | } | |
baf9bed3 JB |
4092 | bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, flinfo->ldrel); |
4093 | flinfo->ldrel += bfd_xcoff_ldrelsz (output_bfd); | |
b3d1832c RS |
4094 | return TRUE; |
4095 | } | |
4096 | ||
116c20d2 NC |
4097 | /* Link an input file into the linker output file. This function |
4098 | handles all the sections and relocations of the input file at once. */ | |
252b5132 | 4099 | |
116c20d2 | 4100 | static bfd_boolean |
baf9bed3 | 4101 | xcoff_link_input_bfd (struct xcoff_final_link_info *flinfo, |
116c20d2 NC |
4102 | bfd *input_bfd) |
4103 | { | |
4104 | bfd *output_bfd; | |
4105 | const char *strings; | |
4106 | bfd_size_type syment_base; | |
4107 | unsigned int n_tmask; | |
4108 | unsigned int n_btshft; | |
4109 | bfd_boolean copy, hash; | |
4110 | bfd_size_type isymesz; | |
4111 | bfd_size_type osymesz; | |
4112 | bfd_size_type linesz; | |
4113 | bfd_byte *esym; | |
4114 | bfd_byte *esym_end; | |
4115 | struct xcoff_link_hash_entry **sym_hash; | |
4116 | struct internal_syment *isymp; | |
4117 | asection **csectpp; | |
3df13c4a | 4118 | unsigned int *lineno_counts; |
e450936a | 4119 | long *debug_index; |
116c20d2 NC |
4120 | long *indexp; |
4121 | unsigned long output_index; | |
4122 | bfd_byte *outsym; | |
4123 | unsigned int incls; | |
4124 | asection *oline; | |
4125 | bfd_boolean keep_syms; | |
4126 | asection *o; | |
252b5132 | 4127 | |
116c20d2 NC |
4128 | /* We can just skip DYNAMIC files, unless this is a static link. */ |
4129 | if ((input_bfd->flags & DYNAMIC) != 0 | |
baf9bed3 | 4130 | && ! flinfo->info->static_link) |
116c20d2 | 4131 | return TRUE; |
252b5132 | 4132 | |
116c20d2 | 4133 | /* Move all the symbols to the output file. */ |
baf9bed3 | 4134 | output_bfd = flinfo->output_bfd; |
116c20d2 NC |
4135 | strings = NULL; |
4136 | syment_base = obj_raw_syment_count (output_bfd); | |
4137 | isymesz = bfd_coff_symesz (input_bfd); | |
4138 | osymesz = bfd_coff_symesz (output_bfd); | |
4139 | linesz = bfd_coff_linesz (input_bfd); | |
4140 | BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)); | |
252b5132 | 4141 | |
116c20d2 NC |
4142 | n_tmask = coff_data (input_bfd)->local_n_tmask; |
4143 | n_btshft = coff_data (input_bfd)->local_n_btshft; | |
252b5132 | 4144 | |
116c20d2 NC |
4145 | /* Define macros so that ISFCN, et. al., macros work correctly. */ |
4146 | #define N_TMASK n_tmask | |
4147 | #define N_BTSHFT n_btshft | |
252b5132 | 4148 | |
116c20d2 | 4149 | copy = FALSE; |
baf9bed3 | 4150 | if (! flinfo->info->keep_memory) |
116c20d2 NC |
4151 | copy = TRUE; |
4152 | hash = TRUE; | |
4153 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) | |
4154 | hash = FALSE; | |
252b5132 | 4155 | |
116c20d2 NC |
4156 | if (! _bfd_coff_get_external_symbols (input_bfd)) |
4157 | return FALSE; | |
4158 | ||
e450936a RS |
4159 | /* Make one pass over the symbols and assign indices to symbols that |
4160 | we have decided to keep. Also use create .loader symbol information | |
4161 | and update information in hash table entries. */ | |
116c20d2 NC |
4162 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); |
4163 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
4164 | sym_hash = obj_xcoff_sym_hashes (input_bfd); | |
4165 | csectpp = xcoff_data (input_bfd)->csects; | |
4166 | debug_index = xcoff_data (input_bfd)->debug_indices; | |
baf9bed3 JB |
4167 | isymp = flinfo->internal_syms; |
4168 | indexp = flinfo->sym_indices; | |
116c20d2 | 4169 | output_index = syment_base; |
116c20d2 | 4170 | while (esym < esym_end) |
252b5132 | 4171 | { |
116c20d2 NC |
4172 | union internal_auxent aux; |
4173 | int smtyp = 0; | |
116c20d2 | 4174 | int add; |
252b5132 | 4175 | |
116c20d2 | 4176 | bfd_coff_swap_sym_in (input_bfd, (void *) esym, (void *) isymp); |
b34976b6 | 4177 | |
8602d4fe RS |
4178 | /* Read in the csect information, if any. */ |
4179 | if (CSECT_SYM_P (isymp->n_sclass)) | |
116c20d2 NC |
4180 | { |
4181 | BFD_ASSERT (isymp->n_numaux > 0); | |
4182 | bfd_coff_swap_aux_in (input_bfd, | |
4183 | (void *) (esym + isymesz * isymp->n_numaux), | |
4184 | isymp->n_type, isymp->n_sclass, | |
4185 | isymp->n_numaux - 1, isymp->n_numaux, | |
4186 | (void *) &aux); | |
b34976b6 | 4187 | |
116c20d2 NC |
4188 | smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp); |
4189 | } | |
b34976b6 | 4190 | |
116c20d2 NC |
4191 | /* If this symbol is in the .loader section, swap out the |
4192 | .loader symbol information. If this is an external symbol | |
4193 | reference to a defined symbol, though, then wait until we get | |
4194 | to the definition. */ | |
8602d4fe | 4195 | if (EXTERN_SYM_P (isymp->n_sclass) |
116c20d2 NC |
4196 | && *sym_hash != NULL |
4197 | && (*sym_hash)->ldsym != NULL | |
5b49f6dc | 4198 | && xcoff_final_definition_p (input_bfd, *sym_hash, *csectpp)) |
116c20d2 NC |
4199 | { |
4200 | struct xcoff_link_hash_entry *h; | |
4201 | struct internal_ldsym *ldsym; | |
9e7b37b3 | 4202 | |
116c20d2 NC |
4203 | h = *sym_hash; |
4204 | ldsym = h->ldsym; | |
e450936a | 4205 | if (isymp->n_scnum > 0) |
116c20d2 NC |
4206 | { |
4207 | ldsym->l_scnum = (*csectpp)->output_section->target_index; | |
e450936a | 4208 | ldsym->l_value = (isymp->n_value |
116c20d2 NC |
4209 | + (*csectpp)->output_section->vma |
4210 | + (*csectpp)->output_offset | |
4211 | - (*csectpp)->vma); | |
252b5132 | 4212 | } |
116c20d2 | 4213 | else |
252b5132 | 4214 | { |
e450936a RS |
4215 | ldsym->l_scnum = isymp->n_scnum; |
4216 | ldsym->l_value = isymp->n_value; | |
252b5132 | 4217 | } |
252b5132 | 4218 | |
116c20d2 NC |
4219 | ldsym->l_smtype = smtyp; |
4220 | if (((h->flags & XCOFF_DEF_REGULAR) == 0 | |
4221 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
4222 | || (h->flags & XCOFF_IMPORT) != 0) | |
4223 | ldsym->l_smtype |= L_IMPORT; | |
4224 | if (((h->flags & XCOFF_DEF_REGULAR) != 0 | |
4225 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
4226 | || (h->flags & XCOFF_EXPORT) != 0) | |
4227 | ldsym->l_smtype |= L_EXPORT; | |
4228 | if ((h->flags & XCOFF_ENTRY) != 0) | |
4229 | ldsym->l_smtype |= L_ENTRY; | |
8602d4fe RS |
4230 | if (isymp->n_sclass == C_AIX_WEAKEXT) |
4231 | ldsym->l_smtype |= L_WEAK; | |
dc810e39 | 4232 | |
116c20d2 NC |
4233 | ldsym->l_smclas = aux.x_csect.x_smclas; |
4234 | ||
4235 | if (ldsym->l_ifile == (bfd_size_type) -1) | |
4236 | ldsym->l_ifile = 0; | |
4237 | else if (ldsym->l_ifile == 0) | |
252b5132 | 4238 | { |
116c20d2 NC |
4239 | if ((ldsym->l_smtype & L_IMPORT) == 0) |
4240 | ldsym->l_ifile = 0; | |
4241 | else | |
252b5132 | 4242 | { |
116c20d2 | 4243 | bfd *impbfd; |
252b5132 | 4244 | |
116c20d2 NC |
4245 | if (h->root.type == bfd_link_hash_defined |
4246 | || h->root.type == bfd_link_hash_defweak) | |
4247 | impbfd = h->root.u.def.section->owner; | |
4248 | else if (h->root.type == bfd_link_hash_undefined | |
4249 | || h->root.type == bfd_link_hash_undefweak) | |
4250 | impbfd = h->root.u.undef.abfd; | |
4251 | else | |
4252 | impbfd = NULL; | |
4253 | ||
4254 | if (impbfd == NULL) | |
4255 | ldsym->l_ifile = 0; | |
4256 | else | |
252b5132 | 4257 | { |
baf9bed3 | 4258 | BFD_ASSERT (impbfd->xvec == flinfo->output_bfd->xvec); |
116c20d2 | 4259 | ldsym->l_ifile = xcoff_data (impbfd)->import_file_id; |
252b5132 RH |
4260 | } |
4261 | } | |
116c20d2 NC |
4262 | } |
4263 | ||
4264 | ldsym->l_parm = 0; | |
4265 | ||
4266 | BFD_ASSERT (h->ldindx >= 0); | |
baf9bed3 JB |
4267 | bfd_xcoff_swap_ldsym_out (flinfo->output_bfd, ldsym, |
4268 | (flinfo->ldsym | |
116c20d2 | 4269 | + ((h->ldindx - 3) |
baf9bed3 | 4270 | * bfd_xcoff_ldsymsz (flinfo->output_bfd)))); |
116c20d2 NC |
4271 | h->ldsym = NULL; |
4272 | ||
4273 | /* Fill in snentry now that we know the target_index. */ | |
4274 | if ((h->flags & XCOFF_ENTRY) != 0 | |
4275 | && (h->root.type == bfd_link_hash_defined | |
4276 | || h->root.type == bfd_link_hash_defweak)) | |
4277 | { | |
4278 | xcoff_data (output_bfd)->snentry = | |
4279 | h->root.u.def.section->output_section->target_index; | |
252b5132 RH |
4280 | } |
4281 | } | |
4282 | ||
e450936a RS |
4283 | add = 1 + isymp->n_numaux; |
4284 | ||
4285 | if (*debug_index == -2) | |
4286 | /* We've decided to strip this symbol. */ | |
4287 | *indexp = -1; | |
4288 | else | |
116c20d2 | 4289 | { |
e450936a RS |
4290 | /* Assign the next unused index to this symbol. */ |
4291 | *indexp = output_index; | |
dc810e39 | 4292 | |
8602d4fe | 4293 | if (EXTERN_SYM_P (isymp->n_sclass)) |
e450936a RS |
4294 | { |
4295 | BFD_ASSERT (*sym_hash != NULL); | |
4296 | (*sym_hash)->indx = output_index; | |
4297 | } | |
dc810e39 | 4298 | |
e450936a RS |
4299 | /* If this is a symbol in the TOC which we may have merged |
4300 | (class XMC_TC), remember the symbol index of the TOC | |
4301 | symbol. */ | |
4302 | if (isymp->n_sclass == C_HIDEXT | |
4303 | && aux.x_csect.x_smclas == XMC_TC | |
4304 | && *sym_hash != NULL) | |
4305 | { | |
4306 | BFD_ASSERT (((*sym_hash)->flags & XCOFF_SET_TOC) == 0); | |
4307 | BFD_ASSERT ((*sym_hash)->toc_section != NULL); | |
4308 | (*sym_hash)->u.toc_indx = output_index; | |
4309 | } | |
252b5132 | 4310 | |
e450936a | 4311 | output_index += add; |
116c20d2 | 4312 | } |
252b5132 | 4313 | |
e450936a RS |
4314 | esym += add * isymesz; |
4315 | isymp += add; | |
4316 | csectpp += add; | |
4317 | sym_hash += add; | |
4318 | debug_index += add; | |
4319 | ++indexp; | |
4320 | for (--add; add > 0; --add) | |
4321 | *indexp++ = -1; | |
4322 | } | |
4323 | ||
4324 | /* Now write out the symbols that we decided to keep. */ | |
4325 | ||
4326 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
4327 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
54e2dbe0 | 4328 | sym_hash = obj_xcoff_sym_hashes (input_bfd); |
baf9bed3 JB |
4329 | isymp = flinfo->internal_syms; |
4330 | indexp = flinfo->sym_indices; | |
e450936a | 4331 | csectpp = xcoff_data (input_bfd)->csects; |
3df13c4a | 4332 | lineno_counts = xcoff_data (input_bfd)->lineno_counts; |
e450936a | 4333 | debug_index = xcoff_data (input_bfd)->debug_indices; |
baf9bed3 | 4334 | outsym = flinfo->outsyms; |
e450936a RS |
4335 | incls = 0; |
4336 | oline = NULL; | |
4337 | while (esym < esym_end) | |
4338 | { | |
4339 | int add; | |
4340 | ||
4341 | add = 1 + isymp->n_numaux; | |
4342 | ||
4343 | if (*indexp < 0) | |
4344 | esym += add * isymesz; | |
4345 | else | |
252b5132 | 4346 | { |
e450936a RS |
4347 | struct internal_syment isym; |
4348 | int i; | |
116c20d2 | 4349 | |
e450936a RS |
4350 | /* Adjust the symbol in order to output it. */ |
4351 | isym = *isymp; | |
116c20d2 NC |
4352 | if (isym._n._n_n._n_zeroes == 0 |
4353 | && isym._n._n_n._n_offset != 0) | |
252b5132 | 4354 | { |
116c20d2 NC |
4355 | /* This symbol has a long name. Enter it in the string |
4356 | table we are building. If *debug_index != -1, the | |
4357 | name has already been entered in the .debug section. */ | |
e450936a | 4358 | if (*debug_index >= 0) |
116c20d2 NC |
4359 | isym._n._n_n._n_offset = *debug_index; |
4360 | else | |
4361 | { | |
4362 | const char *name; | |
4363 | bfd_size_type indx; | |
4364 | ||
4365 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, NULL); | |
4366 | ||
4367 | if (name == NULL) | |
4368 | return FALSE; | |
baf9bed3 | 4369 | indx = _bfd_stringtab_add (flinfo->strtab, name, hash, copy); |
116c20d2 NC |
4370 | if (indx == (bfd_size_type) -1) |
4371 | return FALSE; | |
4372 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
252b5132 RH |
4373 | } |
4374 | } | |
116c20d2 | 4375 | |
54e2dbe0 RS |
4376 | /* Make __rtinit C_HIDEXT rather than C_EXT. This avoids |
4377 | multiple definition problems when linking a shared object | |
4378 | statically. (The native linker doesn't enter __rtinit into | |
4379 | the normal table at all, but having a local symbol can make | |
4380 | the objdump output easier to read.) */ | |
4381 | if (isym.n_sclass == C_EXT | |
4382 | && *sym_hash | |
4383 | && ((*sym_hash)->flags & XCOFF_RTINIT) != 0) | |
4384 | isym.n_sclass = C_HIDEXT; | |
4385 | ||
116c20d2 NC |
4386 | /* The value of a C_FILE symbol is the symbol index of the |
4387 | next C_FILE symbol. The value of the last C_FILE symbol | |
4388 | is -1. We try to get this right, below, just before we | |
4389 | write the symbols out, but in the general case we may | |
4390 | have to write the symbol out twice. */ | |
4391 | if (isym.n_sclass == C_FILE) | |
4392 | { | |
baf9bed3 JB |
4393 | if (flinfo->last_file_index != -1 |
4394 | && flinfo->last_file.n_value != (bfd_vma) *indexp) | |
116c20d2 NC |
4395 | { |
4396 | /* We must correct the value of the last C_FILE entry. */ | |
baf9bed3 JB |
4397 | flinfo->last_file.n_value = *indexp; |
4398 | if ((bfd_size_type) flinfo->last_file_index >= syment_base) | |
116c20d2 NC |
4399 | { |
4400 | /* The last C_FILE symbol is in this input file. */ | |
4401 | bfd_coff_swap_sym_out (output_bfd, | |
baf9bed3 JB |
4402 | (void *) &flinfo->last_file, |
4403 | (void *) (flinfo->outsyms | |
4404 | + ((flinfo->last_file_index | |
116c20d2 NC |
4405 | - syment_base) |
4406 | * osymesz))); | |
4407 | } | |
4408 | else | |
4409 | { | |
4410 | /* We have already written out the last C_FILE | |
4411 | symbol. We need to write it out again. We | |
4412 | borrow *outsym temporarily. */ | |
4413 | file_ptr pos; | |
252b5132 | 4414 | |
116c20d2 | 4415 | bfd_coff_swap_sym_out (output_bfd, |
baf9bed3 | 4416 | (void *) &flinfo->last_file, |
116c20d2 | 4417 | (void *) outsym); |
beb1bf64 | 4418 | |
116c20d2 | 4419 | pos = obj_sym_filepos (output_bfd); |
baf9bed3 | 4420 | pos += flinfo->last_file_index * osymesz; |
116c20d2 NC |
4421 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
4422 | || (bfd_bwrite (outsym, osymesz, output_bfd) | |
4423 | != osymesz)) | |
4424 | return FALSE; | |
4425 | } | |
4426 | } | |
252b5132 | 4427 | |
baf9bed3 JB |
4428 | flinfo->last_file_index = *indexp; |
4429 | flinfo->last_file = isym; | |
116c20d2 | 4430 | } |
252b5132 | 4431 | |
116c20d2 NC |
4432 | /* The value of a C_BINCL or C_EINCL symbol is a file offset |
4433 | into the line numbers. We update the symbol values when | |
4434 | we handle the line numbers. */ | |
4435 | if (isym.n_sclass == C_BINCL | |
4436 | || isym.n_sclass == C_EINCL) | |
4437 | { | |
baf9bed3 | 4438 | isym.n_value = flinfo->line_filepos; |
116c20d2 NC |
4439 | ++incls; |
4440 | } | |
e450936a RS |
4441 | /* The value of a C_BSTAT symbol is the symbol table |
4442 | index of the containing csect. */ | |
4443 | else if (isym.n_sclass == C_BSTAT) | |
116c20d2 | 4444 | { |
116c20d2 | 4445 | bfd_vma indx; |
252b5132 | 4446 | |
116c20d2 NC |
4447 | indx = isym.n_value; |
4448 | if (indx < obj_raw_syment_count (input_bfd)) | |
4449 | { | |
4450 | long symindx; | |
252b5132 | 4451 | |
baf9bed3 | 4452 | symindx = flinfo->sym_indices[indx]; |
116c20d2 NC |
4453 | if (symindx < 0) |
4454 | isym.n_value = 0; | |
4455 | else | |
4456 | isym.n_value = symindx; | |
116c20d2 NC |
4457 | } |
4458 | } | |
e450936a RS |
4459 | else if (isym.n_sclass != C_ESTAT |
4460 | && isym.n_sclass != C_DECL | |
4461 | && isym.n_scnum > 0) | |
4462 | { | |
4463 | isym.n_scnum = (*csectpp)->output_section->target_index; | |
4464 | isym.n_value += ((*csectpp)->output_section->vma | |
4465 | + (*csectpp)->output_offset | |
4466 | - (*csectpp)->vma); | |
4467 | } | |
4468 | ||
4469 | /* Output the symbol. */ | |
4470 | bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym); | |
dc810e39 | 4471 | |
116c20d2 NC |
4472 | esym += isymesz; |
4473 | outsym += osymesz; | |
dc810e39 | 4474 | |
116c20d2 NC |
4475 | for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) |
4476 | { | |
4477 | union internal_auxent aux; | |
dc810e39 | 4478 | |
116c20d2 NC |
4479 | bfd_coff_swap_aux_in (input_bfd, (void *) esym, isymp->n_type, |
4480 | isymp->n_sclass, i, isymp->n_numaux, | |
4481 | (void *) &aux); | |
252b5132 | 4482 | |
116c20d2 NC |
4483 | if (isymp->n_sclass == C_FILE) |
4484 | { | |
4485 | /* This is the file name (or some comment put in by | |
4486 | the compiler). If it is long, we must put it in | |
4487 | the string table. */ | |
4488 | if (aux.x_file.x_n.x_zeroes == 0 | |
4489 | && aux.x_file.x_n.x_offset != 0) | |
4490 | { | |
4491 | const char *filename; | |
4492 | bfd_size_type indx; | |
dc810e39 | 4493 | |
116c20d2 NC |
4494 | BFD_ASSERT (aux.x_file.x_n.x_offset |
4495 | >= STRING_SIZE_SIZE); | |
4496 | if (strings == NULL) | |
4497 | { | |
4498 | strings = _bfd_coff_read_string_table (input_bfd); | |
4499 | if (strings == NULL) | |
4500 | return FALSE; | |
4501 | } | |
4502 | filename = strings + aux.x_file.x_n.x_offset; | |
baf9bed3 | 4503 | indx = _bfd_stringtab_add (flinfo->strtab, filename, |
116c20d2 NC |
4504 | hash, copy); |
4505 | if (indx == (bfd_size_type) -1) | |
4506 | return FALSE; | |
4507 | aux.x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; | |
4508 | } | |
4509 | } | |
8602d4fe | 4510 | else if (CSECT_SYM_P (isymp->n_sclass) |
116c20d2 NC |
4511 | && i + 1 == isymp->n_numaux) |
4512 | { | |
dc810e39 | 4513 | |
116c20d2 NC |
4514 | /* We don't support type checking. I don't know if |
4515 | anybody does. */ | |
4516 | aux.x_csect.x_parmhash = 0; | |
4517 | /* I don't think anybody uses these fields, but we'd | |
4518 | better clobber them just in case. */ | |
4519 | aux.x_csect.x_stab = 0; | |
4520 | aux.x_csect.x_snstab = 0; | |
dc810e39 | 4521 | |
116c20d2 NC |
4522 | if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_LD) |
4523 | { | |
4524 | unsigned long indx; | |
252b5132 | 4525 | |
116c20d2 NC |
4526 | indx = aux.x_csect.x_scnlen.l; |
4527 | if (indx < obj_raw_syment_count (input_bfd)) | |
4528 | { | |
4529 | long symindx; | |
252b5132 | 4530 | |
baf9bed3 | 4531 | symindx = flinfo->sym_indices[indx]; |
116c20d2 NC |
4532 | if (symindx < 0) |
4533 | { | |
4534 | aux.x_csect.x_scnlen.l = 0; | |
4535 | } | |
4536 | else | |
4537 | { | |
4538 | aux.x_csect.x_scnlen.l = symindx; | |
4539 | } | |
4540 | } | |
4541 | } | |
4542 | } | |
4543 | else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL) | |
4544 | { | |
4545 | unsigned long indx; | |
252b5132 | 4546 | |
116c20d2 NC |
4547 | if (ISFCN (isymp->n_type) |
4548 | || ISTAG (isymp->n_sclass) | |
4549 | || isymp->n_sclass == C_BLOCK | |
4550 | || isymp->n_sclass == C_FCN) | |
4551 | { | |
4552 | indx = aux.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
4553 | if (indx > 0 | |
4554 | && indx < obj_raw_syment_count (input_bfd)) | |
4555 | { | |
4556 | /* We look forward through the symbol for | |
4557 | the index of the next symbol we are going | |
4558 | to include. I don't know if this is | |
4559 | entirely right. */ | |
baf9bed3 | 4560 | while (flinfo->sym_indices[indx] < 0 |
116c20d2 NC |
4561 | && indx < obj_raw_syment_count (input_bfd)) |
4562 | ++indx; | |
4563 | if (indx >= obj_raw_syment_count (input_bfd)) | |
4564 | indx = output_index; | |
4565 | else | |
baf9bed3 | 4566 | indx = flinfo->sym_indices[indx]; |
116c20d2 | 4567 | aux.x_sym.x_fcnary.x_fcn.x_endndx.l = indx; |
252b5132 | 4568 | |
116c20d2 NC |
4569 | } |
4570 | } | |
252b5132 | 4571 | |
116c20d2 NC |
4572 | indx = aux.x_sym.x_tagndx.l; |
4573 | if (indx > 0 && indx < obj_raw_syment_count (input_bfd)) | |
4574 | { | |
4575 | long symindx; | |
252b5132 | 4576 | |
baf9bed3 | 4577 | symindx = flinfo->sym_indices[indx]; |
116c20d2 NC |
4578 | if (symindx < 0) |
4579 | aux.x_sym.x_tagndx.l = 0; | |
4580 | else | |
4581 | aux.x_sym.x_tagndx.l = symindx; | |
4582 | } | |
252b5132 | 4583 | |
116c20d2 | 4584 | } |
252b5132 | 4585 | |
116c20d2 NC |
4586 | /* Copy over the line numbers, unless we are stripping |
4587 | them. We do this on a symbol by symbol basis in | |
4588 | order to more easily handle garbage collection. */ | |
8602d4fe | 4589 | if (CSECT_SYM_P (isymp->n_sclass) |
116c20d2 NC |
4590 | && i == 0 |
4591 | && isymp->n_numaux > 1 | |
4592 | && ISFCN (isymp->n_type) | |
4593 | && aux.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) | |
4594 | { | |
3df13c4a | 4595 | if (*lineno_counts == 0) |
116c20d2 NC |
4596 | aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0; |
4597 | else | |
4598 | { | |
4599 | asection *enclosing; | |
4600 | unsigned int enc_count; | |
4601 | bfd_signed_vma linoff; | |
4602 | struct internal_lineno lin; | |
3df13c4a RS |
4603 | bfd_byte *linp; |
4604 | bfd_byte *linpend; | |
4605 | bfd_vma offset; | |
4606 | file_ptr pos; | |
4607 | bfd_size_type amt; | |
252b5132 | 4608 | |
3df13c4a RS |
4609 | /* Read in the enclosing section's line-number |
4610 | information, if we haven't already. */ | |
116c20d2 NC |
4611 | o = *csectpp; |
4612 | enclosing = xcoff_section_data (abfd, o)->enclosing; | |
4613 | enc_count = xcoff_section_data (abfd, o)->lineno_count; | |
4614 | if (oline != enclosing) | |
4615 | { | |
3df13c4a RS |
4616 | pos = enclosing->line_filepos; |
4617 | amt = linesz * enc_count; | |
116c20d2 | 4618 | if (bfd_seek (input_bfd, pos, SEEK_SET) != 0 |
baf9bed3 | 4619 | || (bfd_bread (flinfo->linenos, amt, input_bfd) |
116c20d2 NC |
4620 | != amt)) |
4621 | return FALSE; | |
4622 | oline = enclosing; | |
4623 | } | |
beb1bf64 | 4624 | |
3df13c4a RS |
4625 | /* Copy across the first entry, adjusting its |
4626 | symbol index. */ | |
116c20d2 NC |
4627 | linoff = (aux.x_sym.x_fcnary.x_fcn.x_lnnoptr |
4628 | - enclosing->line_filepos); | |
baf9bed3 | 4629 | linp = flinfo->linenos + linoff; |
3df13c4a RS |
4630 | bfd_coff_swap_lineno_in (input_bfd, linp, &lin); |
4631 | lin.l_addr.l_symndx = *indexp; | |
4632 | bfd_coff_swap_lineno_out (output_bfd, &lin, linp); | |
3df13c4a RS |
4633 | |
4634 | /* Copy the other entries, adjusting their addresses. */ | |
4635 | linpend = linp + *lineno_counts * linesz; | |
4636 | offset = (o->output_section->vma | |
4637 | + o->output_offset | |
4638 | - o->vma); | |
8707bb87 | 4639 | for (linp += linesz; linp < linpend; linp += linesz) |
116c20d2 | 4640 | { |
3df13c4a RS |
4641 | bfd_coff_swap_lineno_in (input_bfd, linp, &lin); |
4642 | lin.l_addr.l_paddr += offset; | |
4643 | bfd_coff_swap_lineno_out (output_bfd, &lin, linp); | |
4644 | } | |
252b5132 | 4645 | |
3df13c4a RS |
4646 | /* Write out the entries we've just processed. */ |
4647 | pos = (o->output_section->line_filepos | |
116c20d2 | 4648 | + o->output_section->lineno_count * linesz); |
3df13c4a RS |
4649 | amt = linesz * *lineno_counts; |
4650 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
baf9bed3 | 4651 | || bfd_bwrite (flinfo->linenos + linoff, |
3df13c4a RS |
4652 | amt, output_bfd) != amt) |
4653 | return FALSE; | |
4654 | o->output_section->lineno_count += *lineno_counts; | |
252b5132 | 4655 | |
3df13c4a RS |
4656 | /* Record the offset of the symbol's line numbers |
4657 | in the output file. */ | |
4658 | aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = pos; | |
252b5132 | 4659 | |
3df13c4a RS |
4660 | if (incls > 0) |
4661 | { | |
4662 | struct internal_syment *iisp, *iispend; | |
4663 | long *iindp; | |
4664 | bfd_byte *oos; | |
4665 | bfd_vma range_start, range_end; | |
4666 | int iiadd; | |
4667 | ||
4668 | /* Update any C_BINCL or C_EINCL symbols | |
4669 | that refer to a line number in the | |
4670 | range we just output. */ | |
baf9bed3 | 4671 | iisp = flinfo->internal_syms; |
3df13c4a | 4672 | iispend = iisp + obj_raw_syment_count (input_bfd); |
baf9bed3 JB |
4673 | iindp = flinfo->sym_indices; |
4674 | oos = flinfo->outsyms; | |
3df13c4a RS |
4675 | range_start = enclosing->line_filepos + linoff; |
4676 | range_end = range_start + *lineno_counts * linesz; | |
4677 | while (iisp < iispend) | |
116c20d2 | 4678 | { |
3df13c4a RS |
4679 | if (*iindp >= 0 |
4680 | && (iisp->n_sclass == C_BINCL | |
4681 | || iisp->n_sclass == C_EINCL) | |
4682 | && iisp->n_value >= range_start | |
4683 | && iisp->n_value < range_end) | |
116c20d2 | 4684 | { |
3df13c4a RS |
4685 | struct internal_syment iis; |
4686 | ||
4687 | bfd_coff_swap_sym_in (output_bfd, oos, &iis); | |
4688 | iis.n_value = (iisp->n_value | |
4689 | - range_start | |
4690 | + pos); | |
4691 | bfd_coff_swap_sym_out (output_bfd, | |
4692 | &iis, oos); | |
4693 | --incls; | |
116c20d2 | 4694 | } |
3df13c4a RS |
4695 | |
4696 | iiadd = 1 + iisp->n_numaux; | |
4697 | if (*iindp >= 0) | |
4698 | oos += iiadd * osymesz; | |
4699 | iisp += iiadd; | |
4700 | iindp += iiadd; | |
116c20d2 NC |
4701 | } |
4702 | } | |
252b5132 RH |
4703 | } |
4704 | } | |
252b5132 | 4705 | |
116c20d2 NC |
4706 | bfd_coff_swap_aux_out (output_bfd, (void *) &aux, isymp->n_type, |
4707 | isymp->n_sclass, i, isymp->n_numaux, | |
4708 | (void *) outsym); | |
4709 | outsym += osymesz; | |
4710 | esym += isymesz; | |
dc810e39 | 4711 | } |
252b5132 RH |
4712 | } |
4713 | ||
54e2dbe0 | 4714 | sym_hash += add; |
116c20d2 NC |
4715 | indexp += add; |
4716 | isymp += add; | |
4717 | csectpp += add; | |
3df13c4a | 4718 | lineno_counts += add; |
e450936a | 4719 | debug_index += add; |
116c20d2 | 4720 | } |
252b5132 | 4721 | |
116c20d2 NC |
4722 | /* If we swapped out a C_FILE symbol, guess that the next C_FILE |
4723 | symbol will be the first symbol in the next input file. In the | |
4724 | normal case, this will save us from writing out the C_FILE symbol | |
4725 | again. */ | |
baf9bed3 JB |
4726 | if (flinfo->last_file_index != -1 |
4727 | && (bfd_size_type) flinfo->last_file_index >= syment_base) | |
116c20d2 | 4728 | { |
baf9bed3 JB |
4729 | flinfo->last_file.n_value = output_index; |
4730 | bfd_coff_swap_sym_out (output_bfd, (void *) &flinfo->last_file, | |
4731 | (void *) (flinfo->outsyms | |
4732 | + ((flinfo->last_file_index - syment_base) | |
116c20d2 NC |
4733 | * osymesz))); |
4734 | } | |
492055e6 | 4735 | |
116c20d2 | 4736 | /* Write the modified symbols to the output file. */ |
baf9bed3 | 4737 | if (outsym > flinfo->outsyms) |
116c20d2 NC |
4738 | { |
4739 | file_ptr pos = obj_sym_filepos (output_bfd) + syment_base * osymesz; | |
baf9bed3 | 4740 | bfd_size_type amt = outsym - flinfo->outsyms; |
116c20d2 | 4741 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
baf9bed3 | 4742 | || bfd_bwrite (flinfo->outsyms, amt, output_bfd) != amt) |
116c20d2 | 4743 | return FALSE; |
fbc4fff4 | 4744 | |
116c20d2 | 4745 | BFD_ASSERT ((obj_raw_syment_count (output_bfd) |
baf9bed3 | 4746 | + (outsym - flinfo->outsyms) / osymesz) |
116c20d2 | 4747 | == output_index); |
fbc4fff4 | 4748 | |
116c20d2 NC |
4749 | obj_raw_syment_count (output_bfd) = output_index; |
4750 | } | |
fbc4fff4 | 4751 | |
116c20d2 NC |
4752 | /* Don't let the linker relocation routines discard the symbols. */ |
4753 | keep_syms = obj_coff_keep_syms (input_bfd); | |
4754 | obj_coff_keep_syms (input_bfd) = TRUE; | |
252b5132 | 4755 | |
116c20d2 NC |
4756 | /* Relocate the contents of each section. */ |
4757 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
4758 | { | |
4759 | bfd_byte *contents; | |
252b5132 | 4760 | |
116c20d2 NC |
4761 | if (! o->linker_mark) |
4762 | /* This section was omitted from the link. */ | |
4763 | continue; | |
252b5132 | 4764 | |
116c20d2 NC |
4765 | if ((o->flags & SEC_HAS_CONTENTS) == 0 |
4766 | || o->size == 0 | |
4767 | || (o->flags & SEC_IN_MEMORY) != 0) | |
4768 | continue; | |
dc810e39 | 4769 | |
116c20d2 NC |
4770 | /* We have set filepos correctly for the sections we created to |
4771 | represent csects, so bfd_get_section_contents should work. */ | |
4772 | if (coff_section_data (input_bfd, o) != NULL | |
4773 | && coff_section_data (input_bfd, o)->contents != NULL) | |
4774 | contents = coff_section_data (input_bfd, o)->contents; | |
4775 | else | |
4776 | { | |
4777 | bfd_size_type sz = o->rawsize ? o->rawsize : o->size; | |
baf9bed3 | 4778 | if (!bfd_get_section_contents (input_bfd, o, flinfo->contents, 0, sz)) |
116c20d2 | 4779 | return FALSE; |
baf9bed3 | 4780 | contents = flinfo->contents; |
252b5132 RH |
4781 | } |
4782 | ||
116c20d2 | 4783 | if ((o->flags & SEC_RELOC) != 0) |
252b5132 | 4784 | { |
116c20d2 NC |
4785 | int target_index; |
4786 | struct internal_reloc *internal_relocs; | |
4787 | struct internal_reloc *irel; | |
4788 | bfd_vma offset; | |
4789 | struct internal_reloc *irelend; | |
4790 | struct xcoff_link_hash_entry **rel_hash; | |
4791 | long r_symndx; | |
252b5132 | 4792 | |
116c20d2 NC |
4793 | /* Read in the relocs. */ |
4794 | target_index = o->output_section->target_index; | |
4795 | internal_relocs = (xcoff_read_internal_relocs | |
baf9bed3 | 4796 | (input_bfd, o, FALSE, flinfo->external_relocs, |
116c20d2 | 4797 | TRUE, |
baf9bed3 | 4798 | (flinfo->section_info[target_index].relocs |
116c20d2 NC |
4799 | + o->output_section->reloc_count))); |
4800 | if (internal_relocs == NULL) | |
4801 | return FALSE; | |
beb1bf64 | 4802 | |
116c20d2 NC |
4803 | /* Call processor specific code to relocate the section |
4804 | contents. */ | |
baf9bed3 | 4805 | if (! bfd_coff_relocate_section (output_bfd, flinfo->info, |
116c20d2 NC |
4806 | input_bfd, o, |
4807 | contents, | |
4808 | internal_relocs, | |
baf9bed3 | 4809 | flinfo->internal_syms, |
116c20d2 | 4810 | xcoff_data (input_bfd)->csects)) |
b34976b6 | 4811 | return FALSE; |
252b5132 | 4812 | |
116c20d2 NC |
4813 | offset = o->output_section->vma + o->output_offset - o->vma; |
4814 | irel = internal_relocs; | |
4815 | irelend = irel + o->reloc_count; | |
baf9bed3 | 4816 | rel_hash = (flinfo->section_info[target_index].rel_hashes |
116c20d2 NC |
4817 | + o->output_section->reloc_count); |
4818 | for (; irel < irelend; irel++, rel_hash++) | |
4819 | { | |
4820 | struct xcoff_link_hash_entry *h = NULL; | |
252b5132 | 4821 | |
116c20d2 | 4822 | *rel_hash = NULL; |
252b5132 | 4823 | |
116c20d2 | 4824 | /* Adjust the reloc address and symbol index. */ |
252b5132 | 4825 | |
116c20d2 | 4826 | irel->r_vaddr += offset; |
252b5132 | 4827 | |
116c20d2 | 4828 | r_symndx = irel->r_symndx; |
beb1bf64 | 4829 | |
116c20d2 NC |
4830 | if (r_symndx == -1) |
4831 | h = NULL; | |
4832 | else | |
4833 | h = obj_xcoff_sym_hashes (input_bfd)[r_symndx]; | |
252b5132 | 4834 | |
baf9bed3 | 4835 | if (r_symndx != -1 && flinfo->info->strip != strip_all) |
252b5132 | 4836 | { |
116c20d2 NC |
4837 | if (h != NULL |
4838 | && h->smclas != XMC_TD | |
4839 | && (irel->r_type == R_TOC | |
4840 | || irel->r_type == R_GL | |
4841 | || irel->r_type == R_TCL | |
4842 | || irel->r_type == R_TRL | |
4843 | || irel->r_type == R_TRLA)) | |
252b5132 | 4844 | { |
116c20d2 NC |
4845 | /* This is a TOC relative reloc with a symbol |
4846 | attached. The symbol should be the one which | |
4847 | this reloc is for. We want to make this | |
4848 | reloc against the TOC address of the symbol, | |
4849 | not the symbol itself. */ | |
4850 | BFD_ASSERT (h->toc_section != NULL); | |
4851 | BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0); | |
4852 | if (h->u.toc_indx != -1) | |
4853 | irel->r_symndx = h->u.toc_indx; | |
4854 | else | |
4855 | { | |
4856 | struct xcoff_toc_rel_hash *n; | |
4857 | struct xcoff_link_section_info *si; | |
4858 | bfd_size_type amt; | |
4859 | ||
4860 | amt = sizeof (* n); | |
baf9bed3 | 4861 | n = bfd_alloc (flinfo->output_bfd, amt); |
116c20d2 NC |
4862 | if (n == NULL) |
4863 | return FALSE; | |
baf9bed3 | 4864 | si = flinfo->section_info + target_index; |
116c20d2 NC |
4865 | n->next = si->toc_rel_hashes; |
4866 | n->h = h; | |
4867 | n->rel = irel; | |
4868 | si->toc_rel_hashes = n; | |
4869 | } | |
252b5132 | 4870 | } |
116c20d2 | 4871 | else if (h != NULL) |
252b5132 | 4872 | { |
116c20d2 NC |
4873 | /* This is a global symbol. */ |
4874 | if (h->indx >= 0) | |
4875 | irel->r_symndx = h->indx; | |
4876 | else | |
4877 | { | |
4878 | /* This symbol is being written at the end | |
4879 | of the file, and we do not yet know the | |
4880 | symbol index. We save the pointer to the | |
4881 | hash table entry in the rel_hash list. | |
4882 | We set the indx field to -2 to indicate | |
4883 | that this symbol must not be stripped. */ | |
4884 | *rel_hash = h; | |
4885 | h->indx = -2; | |
4886 | } | |
252b5132 | 4887 | } |
116c20d2 NC |
4888 | else |
4889 | { | |
4890 | long indx; | |
252b5132 | 4891 | |
baf9bed3 | 4892 | indx = flinfo->sym_indices[r_symndx]; |
252b5132 | 4893 | |
116c20d2 NC |
4894 | if (indx == -1) |
4895 | { | |
4896 | struct internal_syment *is; | |
252b5132 | 4897 | |
116c20d2 NC |
4898 | /* Relocations against a TC0 TOC anchor are |
4899 | automatically transformed to be against | |
4900 | the TOC anchor in the output file. */ | |
baf9bed3 | 4901 | is = flinfo->internal_syms + r_symndx; |
116c20d2 NC |
4902 | if (is->n_sclass == C_HIDEXT |
4903 | && is->n_numaux > 0) | |
4904 | { | |
4905 | void * auxptr; | |
4906 | union internal_auxent aux; | |
252b5132 | 4907 | |
116c20d2 NC |
4908 | auxptr = ((void *) |
4909 | (((bfd_byte *) | |
4910 | obj_coff_external_syms (input_bfd)) | |
4911 | + ((r_symndx + is->n_numaux) | |
4912 | * isymesz))); | |
4913 | bfd_coff_swap_aux_in (input_bfd, auxptr, | |
4914 | is->n_type, is->n_sclass, | |
4915 | is->n_numaux - 1, | |
4916 | is->n_numaux, | |
4917 | (void *) &aux); | |
4918 | if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_SD | |
4919 | && aux.x_csect.x_smclas == XMC_TC0) | |
baf9bed3 | 4920 | indx = flinfo->toc_symindx; |
116c20d2 NC |
4921 | } |
4922 | } | |
252b5132 | 4923 | |
116c20d2 NC |
4924 | if (indx != -1) |
4925 | irel->r_symndx = indx; | |
4926 | else | |
4927 | { | |
252b5132 | 4928 | |
116c20d2 | 4929 | struct internal_syment *is; |
252b5132 | 4930 | |
116c20d2 NC |
4931 | const char *name; |
4932 | char buf[SYMNMLEN + 1]; | |
252b5132 | 4933 | |
116c20d2 NC |
4934 | /* This reloc is against a symbol we are |
4935 | stripping. It would be possible to handle | |
4936 | this case, but I don't think it's worth it. */ | |
baf9bed3 | 4937 | is = flinfo->internal_syms + r_symndx; |
beb1bf64 | 4938 | |
116c20d2 NC |
4939 | name = (_bfd_coff_internal_syment_name |
4940 | (input_bfd, is, buf)); | |
252b5132 | 4941 | |
116c20d2 NC |
4942 | if (name == NULL) |
4943 | return FALSE; | |
252b5132 | 4944 | |
baf9bed3 JB |
4945 | if (! ((*flinfo->info->callbacks->unattached_reloc) |
4946 | (flinfo->info, name, input_bfd, o, | |
116c20d2 NC |
4947 | irel->r_vaddr))) |
4948 | return FALSE; | |
4949 | } | |
4950 | } | |
252b5132 | 4951 | } |
252b5132 | 4952 | |
baf9bed3 | 4953 | if (xcoff_need_ldrel_p (flinfo->info, irel, h)) |
252b5132 | 4954 | { |
b3d1832c | 4955 | asection *sec; |
252b5132 | 4956 | |
b3d1832c RS |
4957 | if (r_symndx == -1) |
4958 | sec = NULL; | |
4959 | else if (h == NULL) | |
4960 | sec = xcoff_data (input_bfd)->csects[r_symndx]; | |
116c20d2 | 4961 | else |
b3d1832c | 4962 | sec = xcoff_symbol_section (h); |
baf9bed3 | 4963 | if (!xcoff_create_ldrel (output_bfd, flinfo, |
b3d1832c RS |
4964 | o->output_section, input_bfd, |
4965 | irel, sec, h)) | |
4966 | return FALSE; | |
116c20d2 NC |
4967 | } |
4968 | } | |
252b5132 | 4969 | |
116c20d2 NC |
4970 | o->output_section->reloc_count += o->reloc_count; |
4971 | } | |
252b5132 | 4972 | |
116c20d2 NC |
4973 | /* Write out the modified section contents. */ |
4974 | if (! bfd_set_section_contents (output_bfd, o->output_section, | |
4975 | contents, (file_ptr) o->output_offset, | |
4976 | o->size)) | |
4977 | return FALSE; | |
4978 | } | |
252b5132 | 4979 | |
116c20d2 | 4980 | obj_coff_keep_syms (input_bfd) = keep_syms; |
252b5132 | 4981 | |
baf9bed3 | 4982 | if (! flinfo->info->keep_memory) |
116c20d2 NC |
4983 | { |
4984 | if (! _bfd_coff_free_symbols (input_bfd)) | |
4985 | return FALSE; | |
4986 | } | |
252b5132 | 4987 | |
116c20d2 NC |
4988 | return TRUE; |
4989 | } | |
252b5132 | 4990 | |
116c20d2 NC |
4991 | #undef N_TMASK |
4992 | #undef N_BTSHFT | |
252b5132 | 4993 | |
116c20d2 | 4994 | /* Sort relocs by VMA. This is called via qsort. */ |
252b5132 | 4995 | |
116c20d2 NC |
4996 | static int |
4997 | xcoff_sort_relocs (const void * p1, const void * p2) | |
4998 | { | |
4999 | const struct internal_reloc *r1 = (const struct internal_reloc *) p1; | |
5000 | const struct internal_reloc *r2 = (const struct internal_reloc *) p2; | |
252b5132 | 5001 | |
116c20d2 NC |
5002 | if (r1->r_vaddr > r2->r_vaddr) |
5003 | return 1; | |
5004 | else if (r1->r_vaddr < r2->r_vaddr) | |
5005 | return -1; | |
5006 | else | |
5007 | return 0; | |
5008 | } | |
252b5132 | 5009 | |
47dfb2ca RS |
5010 | /* Return true if section SEC is a TOC section. */ |
5011 | ||
5012 | static inline bfd_boolean | |
5013 | xcoff_toc_section_p (asection *sec) | |
5014 | { | |
5015 | const char *name; | |
5016 | ||
5017 | name = sec->name; | |
5018 | if (name[0] == '.' && name[1] == 't') | |
5019 | { | |
5020 | if (name[2] == 'c') | |
5021 | { | |
5022 | if (name[3] == '0' && name[4] == 0) | |
5023 | return TRUE; | |
5024 | if (name[3] == 0) | |
5025 | return TRUE; | |
5026 | } | |
5027 | if (name[2] == 'd' && name[3] == 0) | |
5028 | return TRUE; | |
5029 | } | |
5030 | return FALSE; | |
5031 | } | |
5032 | ||
5033 | /* See if the link requires a TOC (it usually does!). If so, find a | |
5034 | good place to put the TOC anchor csect, and write out the associated | |
5035 | symbol. */ | |
5036 | ||
5037 | static bfd_boolean | |
baf9bed3 | 5038 | xcoff_find_tc0 (bfd *output_bfd, struct xcoff_final_link_info *flinfo) |
47dfb2ca RS |
5039 | { |
5040 | bfd_vma toc_start, toc_end, start, end, best_address; | |
5041 | asection *sec; | |
5042 | bfd *input_bfd; | |
5043 | int section_index; | |
5044 | struct internal_syment irsym; | |
5045 | union internal_auxent iraux; | |
5046 | file_ptr pos; | |
5047 | size_t size; | |
5048 | ||
5049 | /* Set [TOC_START, TOC_END) to the range of the TOC. Record the | |
5050 | index of a csect at the beginning of the TOC. */ | |
5051 | toc_start = ~(bfd_vma) 0; | |
5052 | toc_end = 0; | |
5053 | section_index = -1; | |
baf9bed3 | 5054 | for (input_bfd = flinfo->info->input_bfds; |
47dfb2ca RS |
5055 | input_bfd != NULL; |
5056 | input_bfd = input_bfd->link_next) | |
5057 | for (sec = input_bfd->sections; sec != NULL; sec = sec->next) | |
5058 | if ((sec->flags & SEC_MARK) != 0 && xcoff_toc_section_p (sec)) | |
5059 | { | |
5060 | start = sec->output_section->vma + sec->output_offset; | |
5061 | if (toc_start > start) | |
5062 | { | |
5063 | toc_start = start; | |
5064 | section_index = sec->output_section->target_index; | |
5065 | } | |
5066 | ||
5067 | end = start + sec->size; | |
5068 | if (toc_end < end) | |
5069 | toc_end = end; | |
5070 | } | |
5071 | ||
5072 | /* There's no need for a TC0 symbol if we don't have a TOC. */ | |
5073 | if (toc_end < toc_start) | |
5074 | { | |
5075 | xcoff_data (output_bfd)->toc = toc_start; | |
5076 | return TRUE; | |
5077 | } | |
5078 | ||
5079 | if (toc_end - toc_start < 0x8000) | |
5080 | /* Every TOC csect can be accessed from TOC_START. */ | |
5081 | best_address = toc_start; | |
5082 | else | |
5083 | { | |
5084 | /* Find the lowest TOC csect that is still within range of TOC_END. */ | |
5085 | best_address = toc_end; | |
baf9bed3 | 5086 | for (input_bfd = flinfo->info->input_bfds; |
47dfb2ca RS |
5087 | input_bfd != NULL; |
5088 | input_bfd = input_bfd->link_next) | |
5089 | for (sec = input_bfd->sections; sec != NULL; sec = sec->next) | |
5090 | if ((sec->flags & SEC_MARK) != 0 && xcoff_toc_section_p (sec)) | |
5091 | { | |
5092 | start = sec->output_section->vma + sec->output_offset; | |
5093 | if (start < best_address | |
5094 | && start + 0x8000 >= toc_end) | |
5095 | { | |
5096 | best_address = start; | |
5097 | section_index = sec->output_section->target_index; | |
5098 | } | |
5099 | } | |
5100 | ||
5101 | /* Make sure that the start of the TOC is also within range. */ | |
5102 | if (best_address > toc_start + 0x8000) | |
5103 | { | |
5104 | (*_bfd_error_handler) | |
5105 | (_("TOC overflow: 0x%lx > 0x10000; try -mminimal-toc " | |
5106 | "when compiling"), | |
5107 | (unsigned long) (toc_end - toc_start)); | |
5108 | bfd_set_error (bfd_error_file_too_big); | |
5109 | return FALSE; | |
5110 | } | |
5111 | } | |
5112 | ||
5113 | /* Record the chosen TOC value. */ | |
baf9bed3 | 5114 | flinfo->toc_symindx = obj_raw_syment_count (output_bfd); |
47dfb2ca RS |
5115 | xcoff_data (output_bfd)->toc = best_address; |
5116 | xcoff_data (output_bfd)->sntoc = section_index; | |
5117 | ||
5118 | /* Fill out the TC0 symbol. */ | |
baf9bed3 | 5119 | if (!bfd_xcoff_put_symbol_name (output_bfd, flinfo->strtab, &irsym, "TOC")) |
47dfb2ca RS |
5120 | return FALSE; |
5121 | irsym.n_value = best_address; | |
5122 | irsym.n_scnum = section_index; | |
5123 | irsym.n_sclass = C_HIDEXT; | |
5124 | irsym.n_type = T_NULL; | |
5125 | irsym.n_numaux = 1; | |
baf9bed3 | 5126 | bfd_coff_swap_sym_out (output_bfd, &irsym, flinfo->outsyms); |
47dfb2ca RS |
5127 | |
5128 | /* Fill out the auxillary csect information. */ | |
5129 | memset (&iraux, 0, sizeof iraux); | |
5130 | iraux.x_csect.x_smtyp = XTY_SD; | |
5131 | iraux.x_csect.x_smclas = XMC_TC0; | |
5132 | iraux.x_csect.x_scnlen.l = 0; | |
5133 | bfd_coff_swap_aux_out (output_bfd, &iraux, T_NULL, C_HIDEXT, 0, 1, | |
baf9bed3 | 5134 | flinfo->outsyms + bfd_coff_symesz (output_bfd)); |
47dfb2ca RS |
5135 | |
5136 | /* Write the contents to the file. */ | |
5137 | pos = obj_sym_filepos (output_bfd); | |
5138 | pos += obj_raw_syment_count (output_bfd) * bfd_coff_symesz (output_bfd); | |
5139 | size = 2 * bfd_coff_symesz (output_bfd); | |
5140 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
baf9bed3 | 5141 | || bfd_bwrite (flinfo->outsyms, size, output_bfd) != size) |
47dfb2ca RS |
5142 | return FALSE; |
5143 | obj_raw_syment_count (output_bfd) += 2; | |
5144 | ||
5145 | return TRUE; | |
5146 | } | |
5147 | ||
116c20d2 | 5148 | /* Write out a non-XCOFF global symbol. */ |
252b5132 | 5149 | |
116c20d2 NC |
5150 | static bfd_boolean |
5151 | xcoff_write_global_symbol (struct xcoff_link_hash_entry *h, void * inf) | |
5152 | { | |
baf9bed3 | 5153 | struct xcoff_final_link_info *flinfo = (struct xcoff_final_link_info *) inf; |
116c20d2 NC |
5154 | bfd *output_bfd; |
5155 | bfd_byte *outsym; | |
5156 | struct internal_syment isym; | |
5157 | union internal_auxent aux; | |
5158 | bfd_boolean result; | |
5159 | file_ptr pos; | |
5160 | bfd_size_type amt; | |
252b5132 | 5161 | |
baf9bed3 JB |
5162 | output_bfd = flinfo->output_bfd; |
5163 | outsym = flinfo->outsyms; | |
252b5132 | 5164 | |
116c20d2 | 5165 | if (h->root.type == bfd_link_hash_warning) |
252b5132 | 5166 | { |
116c20d2 NC |
5167 | h = (struct xcoff_link_hash_entry *) h->root.u.i.link; |
5168 | if (h->root.type == bfd_link_hash_new) | |
5169 | return TRUE; | |
252b5132 RH |
5170 | } |
5171 | ||
116c20d2 | 5172 | /* If this symbol was garbage collected, just skip it. */ |
baf9bed3 | 5173 | if (xcoff_hash_table (flinfo->info)->gc |
116c20d2 NC |
5174 | && (h->flags & XCOFF_MARK) == 0) |
5175 | return TRUE; | |
5176 | ||
5177 | /* If we need a .loader section entry, write it out. */ | |
5178 | if (h->ldsym != NULL) | |
252b5132 | 5179 | { |
116c20d2 NC |
5180 | struct internal_ldsym *ldsym; |
5181 | bfd *impbfd; | |
252b5132 | 5182 | |
116c20d2 | 5183 | ldsym = h->ldsym; |
252b5132 | 5184 | |
116c20d2 NC |
5185 | if (h->root.type == bfd_link_hash_undefined |
5186 | || h->root.type == bfd_link_hash_undefweak) | |
5187 | { | |
252b5132 | 5188 | |
116c20d2 NC |
5189 | ldsym->l_value = 0; |
5190 | ldsym->l_scnum = N_UNDEF; | |
5191 | ldsym->l_smtype = XTY_ER; | |
5192 | impbfd = h->root.u.undef.abfd; | |
252b5132 | 5193 | |
116c20d2 NC |
5194 | } |
5195 | else if (h->root.type == bfd_link_hash_defined | |
5196 | || h->root.type == bfd_link_hash_defweak) | |
5197 | { | |
5198 | asection *sec; | |
252b5132 | 5199 | |
116c20d2 NC |
5200 | sec = h->root.u.def.section; |
5201 | ldsym->l_value = (sec->output_section->vma | |
5202 | + sec->output_offset | |
5203 | + h->root.u.def.value); | |
5204 | ldsym->l_scnum = sec->output_section->target_index; | |
5205 | ldsym->l_smtype = XTY_SD; | |
5206 | impbfd = sec->owner; | |
252b5132 | 5207 | |
dc810e39 | 5208 | } |
116c20d2 NC |
5209 | else |
5210 | abort (); | |
252b5132 | 5211 | |
116c20d2 NC |
5212 | if (((h->flags & XCOFF_DEF_REGULAR) == 0 |
5213 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
5214 | || (h->flags & XCOFF_IMPORT) != 0) | |
5215 | /* Clear l_smtype | |
5216 | Import symbols are defined so the check above will make | |
5217 | the l_smtype XTY_SD. But this is not correct, it should | |
5218 | be cleared. */ | |
5219 | ldsym->l_smtype |= L_IMPORT; | |
252b5132 | 5220 | |
116c20d2 NC |
5221 | if (((h->flags & XCOFF_DEF_REGULAR) != 0 |
5222 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
5223 | || (h->flags & XCOFF_EXPORT) != 0) | |
5224 | ldsym->l_smtype |= L_EXPORT; | |
252b5132 | 5225 | |
116c20d2 NC |
5226 | if ((h->flags & XCOFF_ENTRY) != 0) |
5227 | ldsym->l_smtype |= L_ENTRY; | |
5228 | ||
5229 | if ((h->flags & XCOFF_RTINIT) != 0) | |
5230 | ldsym->l_smtype = XTY_SD; | |
5231 | ||
5232 | ldsym->l_smclas = h->smclas; | |
5233 | ||
5234 | if (ldsym->l_smtype & L_IMPORT) | |
dc810e39 | 5235 | { |
116c20d2 NC |
5236 | if ((h->root.type == bfd_link_hash_defined |
5237 | || h->root.type == bfd_link_hash_defweak) | |
5238 | && (h->root.u.def.value != 0)) | |
5239 | ldsym->l_smclas = XMC_XO; | |
dc810e39 | 5240 | |
116c20d2 NC |
5241 | else if ((h->flags & (XCOFF_SYSCALL32 | XCOFF_SYSCALL64)) == |
5242 | (XCOFF_SYSCALL32 | XCOFF_SYSCALL64)) | |
5243 | ldsym->l_smclas = XMC_SV3264; | |
252b5132 | 5244 | |
116c20d2 NC |
5245 | else if (h->flags & XCOFF_SYSCALL32) |
5246 | ldsym->l_smclas = XMC_SV; | |
252b5132 | 5247 | |
116c20d2 NC |
5248 | else if (h->flags & XCOFF_SYSCALL64) |
5249 | ldsym->l_smclas = XMC_SV64; | |
5250 | } | |
5251 | ||
5252 | if (ldsym->l_ifile == -(bfd_size_type) 1) | |
5253 | { | |
5254 | ldsym->l_ifile = 0; | |
5255 | } | |
5256 | else if (ldsym->l_ifile == 0) | |
5257 | { | |
5258 | if ((ldsym->l_smtype & L_IMPORT) == 0) | |
5259 | ldsym->l_ifile = 0; | |
5260 | else if (impbfd == NULL) | |
5261 | ldsym->l_ifile = 0; | |
5262 | else | |
dc810e39 | 5263 | { |
116c20d2 NC |
5264 | BFD_ASSERT (impbfd->xvec == output_bfd->xvec); |
5265 | ldsym->l_ifile = xcoff_data (impbfd)->import_file_id; | |
5266 | } | |
5267 | } | |
252b5132 | 5268 | |
116c20d2 | 5269 | ldsym->l_parm = 0; |
252b5132 | 5270 | |
116c20d2 | 5271 | BFD_ASSERT (h->ldindx >= 0); |
252b5132 | 5272 | |
116c20d2 | 5273 | bfd_xcoff_swap_ldsym_out (output_bfd, ldsym, |
baf9bed3 | 5274 | (flinfo->ldsym + |
116c20d2 | 5275 | (h->ldindx - 3) |
baf9bed3 | 5276 | * bfd_xcoff_ldsymsz(flinfo->output_bfd))); |
116c20d2 NC |
5277 | h->ldsym = NULL; |
5278 | } | |
252b5132 | 5279 | |
116c20d2 NC |
5280 | /* If this symbol needs global linkage code, write it out. */ |
5281 | if (h->root.type == bfd_link_hash_defined | |
5282 | && (h->root.u.def.section | |
baf9bed3 | 5283 | == xcoff_hash_table (flinfo->info)->linkage_section)) |
116c20d2 NC |
5284 | { |
5285 | bfd_byte *p; | |
5286 | bfd_vma tocoff; | |
5287 | unsigned int i; | |
252b5132 | 5288 | |
116c20d2 | 5289 | p = h->root.u.def.section->contents + h->root.u.def.value; |
252b5132 | 5290 | |
116c20d2 NC |
5291 | /* The first instruction in the global linkage code loads a |
5292 | specific TOC element. */ | |
5293 | tocoff = (h->descriptor->toc_section->output_section->vma | |
5294 | + h->descriptor->toc_section->output_offset | |
5295 | - xcoff_data (output_bfd)->toc); | |
dc810e39 | 5296 | |
116c20d2 NC |
5297 | if ((h->descriptor->flags & XCOFF_SET_TOC) != 0) |
5298 | tocoff += h->descriptor->u.toc_offset; | |
252b5132 | 5299 | |
116c20d2 NC |
5300 | /* The first instruction in the glink code needs to be |
5301 | cooked to to hold the correct offset in the toc. The | |
5302 | rest are just output raw. */ | |
5303 | bfd_put_32 (output_bfd, | |
5304 | bfd_xcoff_glink_code(output_bfd, 0) | (tocoff & 0xffff), p); | |
252b5132 | 5305 | |
116c20d2 NC |
5306 | /* Start with i == 1 to get past the first instruction done above |
5307 | The /4 is because the glink code is in bytes and we are going | |
5308 | 4 at a pop. */ | |
5309 | for (i = 1; i < bfd_xcoff_glink_code_size(output_bfd) / 4; i++) | |
5310 | bfd_put_32 (output_bfd, | |
5311 | (bfd_vma) bfd_xcoff_glink_code(output_bfd, i), | |
5312 | &p[4 * i]); | |
5313 | } | |
dc810e39 | 5314 | |
116c20d2 NC |
5315 | /* If we created a TOC entry for this symbol, write out the required |
5316 | relocs. */ | |
5317 | if ((h->flags & XCOFF_SET_TOC) != 0) | |
5318 | { | |
5319 | asection *tocsec; | |
5320 | asection *osec; | |
5321 | int oindx; | |
5322 | struct internal_reloc *irel; | |
116c20d2 NC |
5323 | struct internal_syment irsym; |
5324 | union internal_auxent iraux; | |
dc810e39 | 5325 | |
116c20d2 NC |
5326 | tocsec = h->toc_section; |
5327 | osec = tocsec->output_section; | |
5328 | oindx = osec->target_index; | |
baf9bed3 | 5329 | irel = flinfo->section_info[oindx].relocs + osec->reloc_count; |
116c20d2 NC |
5330 | irel->r_vaddr = (osec->vma |
5331 | + tocsec->output_offset | |
5332 | + h->u.toc_offset); | |
5333 | ||
5334 | if (h->indx >= 0) | |
5335 | irel->r_symndx = h->indx; | |
5336 | else | |
5337 | { | |
5338 | h->indx = -2; | |
5339 | irel->r_symndx = obj_raw_syment_count (output_bfd); | |
5340 | } | |
5341 | ||
5342 | BFD_ASSERT (h->ldindx >= 0); | |
5343 | ||
5344 | /* Initialize the aux union here instead of closer to when it is | |
5345 | written out below because the length of the csect depends on | |
5346 | whether the output is 32 or 64 bit. */ | |
5347 | memset (&iraux, 0, sizeof iraux); | |
5348 | iraux.x_csect.x_smtyp = XTY_SD; | |
5349 | /* iraux.x_csect.x_scnlen.l = 4 or 8, see below. */ | |
5350 | iraux.x_csect.x_smclas = XMC_TC; | |
5351 | ||
5352 | /* 32 bit uses a 32 bit R_POS to do the relocations | |
5353 | 64 bit uses a 64 bit R_POS to do the relocations | |
5354 | ||
5355 | Also needs to change the csect size : 4 for 32 bit, 8 for 64 bit | |
5356 | ||
5357 | Which one is determined by the backend. */ | |
5358 | if (bfd_xcoff_is_xcoff64 (output_bfd)) | |
5359 | { | |
5360 | irel->r_size = 63; | |
5361 | iraux.x_csect.x_scnlen.l = 8; | |
5362 | } | |
5363 | else if (bfd_xcoff_is_xcoff32 (output_bfd)) | |
5364 | { | |
5365 | irel->r_size = 31; | |
5366 | iraux.x_csect.x_scnlen.l = 4; | |
5367 | } | |
5368 | else | |
5369 | return FALSE; | |
5370 | ||
5371 | irel->r_type = R_POS; | |
baf9bed3 | 5372 | flinfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; |
116c20d2 NC |
5373 | ++osec->reloc_count; |
5374 | ||
baf9bed3 | 5375 | if (!xcoff_create_ldrel (output_bfd, flinfo, osec, |
b3d1832c RS |
5376 | output_bfd, irel, NULL, h)) |
5377 | return FALSE; | |
116c20d2 NC |
5378 | |
5379 | /* We need to emit a symbol to define a csect which holds | |
5380 | the reloc. */ | |
baf9bed3 | 5381 | if (flinfo->info->strip != strip_all) |
116c20d2 | 5382 | { |
baf9bed3 | 5383 | result = bfd_xcoff_put_symbol_name (output_bfd, flinfo->strtab, |
116c20d2 NC |
5384 | &irsym, h->root.root.string); |
5385 | if (!result) | |
5386 | return FALSE; | |
5387 | ||
5388 | irsym.n_value = irel->r_vaddr; | |
5389 | irsym.n_scnum = osec->target_index; | |
5390 | irsym.n_sclass = C_HIDEXT; | |
5391 | irsym.n_type = T_NULL; | |
5392 | irsym.n_numaux = 1; | |
5393 | ||
5394 | bfd_coff_swap_sym_out (output_bfd, (void *) &irsym, (void *) outsym); | |
5395 | outsym += bfd_coff_symesz (output_bfd); | |
5396 | ||
5397 | /* Note : iraux is initialized above. */ | |
5398 | bfd_coff_swap_aux_out (output_bfd, (void *) &iraux, T_NULL, C_HIDEXT, | |
5399 | 0, 1, (void *) outsym); | |
5400 | outsym += bfd_coff_auxesz (output_bfd); | |
5401 | ||
5402 | if (h->indx >= 0) | |
5403 | { | |
5404 | /* We aren't going to write out the symbols below, so we | |
5405 | need to write them out now. */ | |
5406 | pos = obj_sym_filepos (output_bfd); | |
5407 | pos += (obj_raw_syment_count (output_bfd) | |
5408 | * bfd_coff_symesz (output_bfd)); | |
baf9bed3 | 5409 | amt = outsym - flinfo->outsyms; |
116c20d2 | 5410 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
baf9bed3 | 5411 | || bfd_bwrite (flinfo->outsyms, amt, output_bfd) != amt) |
116c20d2 NC |
5412 | return FALSE; |
5413 | obj_raw_syment_count (output_bfd) += | |
baf9bed3 | 5414 | (outsym - flinfo->outsyms) / bfd_coff_symesz (output_bfd); |
116c20d2 | 5415 | |
baf9bed3 | 5416 | outsym = flinfo->outsyms; |
116c20d2 NC |
5417 | } |
5418 | } | |
5419 | } | |
5420 | ||
5421 | /* If this symbol is a specially defined function descriptor, write | |
5422 | it out. The first word is the address of the function code | |
5423 | itself, the second word is the address of the TOC, and the third | |
5424 | word is zero. | |
5425 | ||
5426 | 32 bit vs 64 bit | |
5427 | The addresses for the 32 bit will take 4 bytes and the addresses | |
5428 | for 64 bit will take 8 bytes. Similar for the relocs. This type | |
5429 | of logic was also done above to create a TOC entry in | |
5430 | xcoff_write_global_symbol. */ | |
5431 | if ((h->flags & XCOFF_DESCRIPTOR) != 0 | |
5432 | && h->root.type == bfd_link_hash_defined | |
5433 | && (h->root.u.def.section | |
baf9bed3 | 5434 | == xcoff_hash_table (flinfo->info)->descriptor_section)) |
116c20d2 NC |
5435 | { |
5436 | asection *sec; | |
5437 | asection *osec; | |
5438 | int oindx; | |
5439 | bfd_byte *p; | |
5440 | struct xcoff_link_hash_entry *hentry; | |
5441 | asection *esec; | |
5442 | struct internal_reloc *irel; | |
116c20d2 NC |
5443 | asection *tsec; |
5444 | unsigned int reloc_size, byte_size; | |
5445 | ||
5446 | if (bfd_xcoff_is_xcoff64 (output_bfd)) | |
5447 | { | |
5448 | reloc_size = 63; | |
5449 | byte_size = 8; | |
5450 | } | |
5451 | else if (bfd_xcoff_is_xcoff32 (output_bfd)) | |
5452 | { | |
5453 | reloc_size = 31; | |
5454 | byte_size = 4; | |
5455 | } | |
5456 | else | |
5457 | return FALSE; | |
5458 | ||
5459 | sec = h->root.u.def.section; | |
5460 | osec = sec->output_section; | |
5461 | oindx = osec->target_index; | |
5462 | p = sec->contents + h->root.u.def.value; | |
5463 | ||
5464 | hentry = h->descriptor; | |
5465 | BFD_ASSERT (hentry != NULL | |
5466 | && (hentry->root.type == bfd_link_hash_defined | |
5467 | || hentry->root.type == bfd_link_hash_defweak)); | |
5468 | esec = hentry->root.u.def.section; | |
5469 | ||
baf9bed3 | 5470 | irel = flinfo->section_info[oindx].relocs + osec->reloc_count; |
116c20d2 NC |
5471 | irel->r_vaddr = (osec->vma |
5472 | + sec->output_offset | |
5473 | + h->root.u.def.value); | |
5474 | irel->r_symndx = esec->output_section->target_index; | |
5475 | irel->r_type = R_POS; | |
5476 | irel->r_size = reloc_size; | |
baf9bed3 | 5477 | flinfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; |
116c20d2 NC |
5478 | ++osec->reloc_count; |
5479 | ||
baf9bed3 | 5480 | if (!xcoff_create_ldrel (output_bfd, flinfo, osec, |
b3d1832c RS |
5481 | output_bfd, irel, esec, NULL)) |
5482 | return FALSE; | |
116c20d2 NC |
5483 | |
5484 | /* There are three items to write out, | |
5485 | the address of the code | |
5486 | the address of the toc anchor | |
5487 | the environment pointer. | |
5488 | We are ignoring the environment pointer. So set it to zero. */ | |
5489 | if (bfd_xcoff_is_xcoff64 (output_bfd)) | |
5490 | { | |
5491 | bfd_put_64 (output_bfd, | |
5492 | (esec->output_section->vma + esec->output_offset | |
5493 | + hentry->root.u.def.value), | |
5494 | p); | |
5495 | bfd_put_64 (output_bfd, xcoff_data (output_bfd)->toc, p + 8); | |
5496 | bfd_put_64 (output_bfd, (bfd_vma) 0, p + 16); | |
5497 | } | |
5498 | else | |
5499 | { | |
5500 | /* 32 bit backend | |
5501 | This logic was already called above so the error case where | |
5502 | the backend is neither has already been checked. */ | |
5503 | bfd_put_32 (output_bfd, | |
5504 | (esec->output_section->vma + esec->output_offset | |
5505 | + hentry->root.u.def.value), | |
5506 | p); | |
5507 | bfd_put_32 (output_bfd, xcoff_data (output_bfd)->toc, p + 4); | |
5508 | bfd_put_32 (output_bfd, (bfd_vma) 0, p + 8); | |
5509 | } | |
252b5132 | 5510 | |
116c20d2 NC |
5511 | tsec = coff_section_from_bfd_index (output_bfd, |
5512 | xcoff_data (output_bfd)->sntoc); | |
252b5132 | 5513 | |
116c20d2 NC |
5514 | ++irel; |
5515 | irel->r_vaddr = (osec->vma | |
5516 | + sec->output_offset | |
5517 | + h->root.u.def.value | |
5518 | + byte_size); | |
5519 | irel->r_symndx = tsec->output_section->target_index; | |
5520 | irel->r_type = R_POS; | |
5521 | irel->r_size = reloc_size; | |
baf9bed3 | 5522 | flinfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; |
116c20d2 | 5523 | ++osec->reloc_count; |
252b5132 | 5524 | |
baf9bed3 | 5525 | if (!xcoff_create_ldrel (output_bfd, flinfo, osec, |
b3d1832c RS |
5526 | output_bfd, irel, tsec, NULL)) |
5527 | return FALSE; | |
116c20d2 | 5528 | } |
252b5132 | 5529 | |
baf9bed3 | 5530 | if (h->indx >= 0 || flinfo->info->strip == strip_all) |
116c20d2 | 5531 | { |
baf9bed3 | 5532 | BFD_ASSERT (outsym == flinfo->outsyms); |
116c20d2 NC |
5533 | return TRUE; |
5534 | } | |
beb1bf64 | 5535 | |
116c20d2 | 5536 | if (h->indx != -2 |
baf9bed3 JB |
5537 | && (flinfo->info->strip == strip_all |
5538 | || (flinfo->info->strip == strip_some | |
5539 | && bfd_hash_lookup (flinfo->info->keep_hash, h->root.root.string, | |
116c20d2 NC |
5540 | FALSE, FALSE) == NULL))) |
5541 | { | |
baf9bed3 | 5542 | BFD_ASSERT (outsym == flinfo->outsyms); |
116c20d2 NC |
5543 | return TRUE; |
5544 | } | |
dc810e39 | 5545 | |
116c20d2 NC |
5546 | if (h->indx != -2 |
5547 | && (h->flags & (XCOFF_REF_REGULAR | XCOFF_DEF_REGULAR)) == 0) | |
5548 | { | |
baf9bed3 | 5549 | BFD_ASSERT (outsym == flinfo->outsyms); |
116c20d2 NC |
5550 | return TRUE; |
5551 | } | |
dc810e39 | 5552 | |
116c20d2 | 5553 | memset (&aux, 0, sizeof aux); |
252b5132 | 5554 | |
116c20d2 | 5555 | h->indx = obj_raw_syment_count (output_bfd); |
dc810e39 | 5556 | |
baf9bed3 | 5557 | result = bfd_xcoff_put_symbol_name (output_bfd, flinfo->strtab, &isym, |
116c20d2 NC |
5558 | h->root.root.string); |
5559 | if (!result) | |
5560 | return FALSE; | |
dc810e39 | 5561 | |
116c20d2 NC |
5562 | if (h->root.type == bfd_link_hash_undefined |
5563 | || h->root.type == bfd_link_hash_undefweak) | |
5564 | { | |
5565 | isym.n_value = 0; | |
5566 | isym.n_scnum = N_UNDEF; | |
8602d4fe RS |
5567 | if (h->root.type == bfd_link_hash_undefweak |
5568 | && C_WEAKEXT == C_AIX_WEAKEXT) | |
5569 | isym.n_sclass = C_WEAKEXT; | |
5570 | else | |
5571 | isym.n_sclass = C_EXT; | |
116c20d2 NC |
5572 | aux.x_csect.x_smtyp = XTY_ER; |
5573 | } | |
5574 | else if ((h->root.type == bfd_link_hash_defined | |
5575 | || h->root.type == bfd_link_hash_defweak) | |
5576 | && h->smclas == XMC_XO) | |
5577 | { | |
5578 | BFD_ASSERT (bfd_is_abs_section (h->root.u.def.section)); | |
5579 | isym.n_value = h->root.u.def.value; | |
5580 | isym.n_scnum = N_UNDEF; | |
8602d4fe RS |
5581 | if (h->root.type == bfd_link_hash_undefweak |
5582 | && C_WEAKEXT == C_AIX_WEAKEXT) | |
5583 | isym.n_sclass = C_WEAKEXT; | |
5584 | else | |
5585 | isym.n_sclass = C_EXT; | |
116c20d2 NC |
5586 | aux.x_csect.x_smtyp = XTY_ER; |
5587 | } | |
5588 | else if (h->root.type == bfd_link_hash_defined | |
5589 | || h->root.type == bfd_link_hash_defweak) | |
5590 | { | |
5591 | struct xcoff_link_size_list *l; | |
252b5132 | 5592 | |
116c20d2 NC |
5593 | isym.n_value = (h->root.u.def.section->output_section->vma |
5594 | + h->root.u.def.section->output_offset | |
5595 | + h->root.u.def.value); | |
5596 | if (bfd_is_abs_section (h->root.u.def.section->output_section)) | |
5597 | isym.n_scnum = N_ABS; | |
5598 | else | |
5599 | isym.n_scnum = h->root.u.def.section->output_section->target_index; | |
5600 | isym.n_sclass = C_HIDEXT; | |
5601 | aux.x_csect.x_smtyp = XTY_SD; | |
252b5132 | 5602 | |
116c20d2 NC |
5603 | if ((h->flags & XCOFF_HAS_SIZE) != 0) |
5604 | { | |
baf9bed3 | 5605 | for (l = xcoff_hash_table (flinfo->info)->size_list; |
116c20d2 NC |
5606 | l != NULL; |
5607 | l = l->next) | |
5608 | { | |
5609 | if (l->h == h) | |
5610 | { | |
5611 | aux.x_csect.x_scnlen.l = l->size; | |
dc810e39 AM |
5612 | break; |
5613 | } | |
5614 | } | |
dc810e39 | 5615 | } |
252b5132 | 5616 | } |
116c20d2 NC |
5617 | else if (h->root.type == bfd_link_hash_common) |
5618 | { | |
5619 | isym.n_value = (h->root.u.c.p->section->output_section->vma | |
5620 | + h->root.u.c.p->section->output_offset); | |
5621 | isym.n_scnum = h->root.u.c.p->section->output_section->target_index; | |
5622 | isym.n_sclass = C_EXT; | |
5623 | aux.x_csect.x_smtyp = XTY_CM; | |
5624 | aux.x_csect.x_scnlen.l = h->root.u.c.size; | |
5625 | } | |
5626 | else | |
5627 | abort (); | |
5628 | ||
5629 | isym.n_type = T_NULL; | |
5630 | isym.n_numaux = 1; | |
5631 | ||
5632 | bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym); | |
5633 | outsym += bfd_coff_symesz (output_bfd); | |
5634 | ||
5635 | aux.x_csect.x_smclas = h->smclas; | |
5636 | bfd_coff_swap_aux_out (output_bfd, (void *) &aux, T_NULL, isym.n_sclass, 0, 1, | |
5637 | (void *) outsym); | |
5638 | outsym += bfd_coff_auxesz (output_bfd); | |
5639 | ||
5640 | if ((h->root.type == bfd_link_hash_defined | |
5641 | || h->root.type == bfd_link_hash_defweak) | |
5642 | && h->smclas != XMC_XO) | |
5643 | { | |
5644 | /* We just output an SD symbol. Now output an LD symbol. */ | |
5645 | h->indx += 2; | |
252b5132 | 5646 | |
8602d4fe RS |
5647 | if (h->root.type == bfd_link_hash_undefweak |
5648 | && C_WEAKEXT == C_AIX_WEAKEXT) | |
5649 | isym.n_sclass = C_WEAKEXT; | |
5650 | else | |
5651 | isym.n_sclass = C_EXT; | |
116c20d2 NC |
5652 | bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym); |
5653 | outsym += bfd_coff_symesz (output_bfd); | |
252b5132 | 5654 | |
116c20d2 NC |
5655 | aux.x_csect.x_smtyp = XTY_LD; |
5656 | aux.x_csect.x_scnlen.l = obj_raw_syment_count (output_bfd); | |
5657 | bfd_coff_swap_aux_out (output_bfd, (void *) &aux, T_NULL, C_EXT, 0, 1, | |
5658 | (void *) outsym); | |
5659 | outsym += bfd_coff_auxesz (output_bfd); | |
252b5132 RH |
5660 | } |
5661 | ||
116c20d2 NC |
5662 | pos = obj_sym_filepos (output_bfd); |
5663 | pos += obj_raw_syment_count (output_bfd) * bfd_coff_symesz (output_bfd); | |
baf9bed3 | 5664 | amt = outsym - flinfo->outsyms; |
116c20d2 | 5665 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
baf9bed3 | 5666 | || bfd_bwrite (flinfo->outsyms, amt, output_bfd) != amt) |
116c20d2 NC |
5667 | return FALSE; |
5668 | obj_raw_syment_count (output_bfd) += | |
baf9bed3 | 5669 | (outsym - flinfo->outsyms) / bfd_coff_symesz (output_bfd); |
116c20d2 | 5670 | |
b34976b6 | 5671 | return TRUE; |
252b5132 RH |
5672 | } |
5673 | ||
116c20d2 | 5674 | /* Handle a link order which is supposed to generate a reloc. */ |
beb1bf64 | 5675 | |
b34976b6 | 5676 | static bfd_boolean |
116c20d2 | 5677 | xcoff_reloc_link_order (bfd *output_bfd, |
baf9bed3 | 5678 | struct xcoff_final_link_info *flinfo, |
116c20d2 NC |
5679 | asection *output_section, |
5680 | struct bfd_link_order *link_order) | |
252b5132 | 5681 | { |
116c20d2 NC |
5682 | reloc_howto_type *howto; |
5683 | struct xcoff_link_hash_entry *h; | |
5684 | asection *hsec; | |
5685 | bfd_vma hval; | |
5686 | bfd_vma addend; | |
5687 | struct internal_reloc *irel; | |
5688 | struct xcoff_link_hash_entry **rel_hash_ptr; | |
252b5132 | 5689 | |
116c20d2 NC |
5690 | if (link_order->type == bfd_section_reloc_link_order) |
5691 | /* We need to somehow locate a symbol in the right section. The | |
5692 | symbol must either have a value of zero, or we must adjust | |
5693 | the addend by the value of the symbol. FIXME: Write this | |
5694 | when we need it. The old linker couldn't handle this anyhow. */ | |
5695 | abort (); | |
252b5132 | 5696 | |
116c20d2 NC |
5697 | howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); |
5698 | if (howto == NULL) | |
e92d460e | 5699 | { |
116c20d2 NC |
5700 | bfd_set_error (bfd_error_bad_value); |
5701 | return FALSE; | |
e92d460e AM |
5702 | } |
5703 | ||
116c20d2 | 5704 | h = ((struct xcoff_link_hash_entry *) |
baf9bed3 | 5705 | bfd_wrapped_link_hash_lookup (output_bfd, flinfo->info, |
116c20d2 NC |
5706 | link_order->u.reloc.p->u.name, |
5707 | FALSE, FALSE, TRUE)); | |
5708 | if (h == NULL) | |
5709 | { | |
baf9bed3 JB |
5710 | if (! ((*flinfo->info->callbacks->unattached_reloc) |
5711 | (flinfo->info, link_order->u.reloc.p->u.name, NULL, NULL, (bfd_vma) 0))) | |
116c20d2 NC |
5712 | return FALSE; |
5713 | return TRUE; | |
5714 | } | |
252b5132 | 5715 | |
b3d1832c RS |
5716 | hsec = xcoff_symbol_section (h); |
5717 | if (h->root.type == bfd_link_hash_defined | |
5718 | || h->root.type == bfd_link_hash_defweak) | |
5719 | hval = h->root.u.def.value; | |
116c20d2 | 5720 | else |
b3d1832c | 5721 | hval = 0; |
252b5132 | 5722 | |
116c20d2 NC |
5723 | addend = link_order->u.reloc.p->addend; |
5724 | if (hsec != NULL) | |
5725 | addend += (hsec->output_section->vma | |
5726 | + hsec->output_offset | |
5727 | + hval); | |
252b5132 | 5728 | |
116c20d2 NC |
5729 | if (addend != 0) |
5730 | { | |
5731 | bfd_size_type size; | |
5732 | bfd_byte *buf; | |
5733 | bfd_reloc_status_type rstat; | |
5734 | bfd_boolean ok; | |
252b5132 | 5735 | |
116c20d2 NC |
5736 | size = bfd_get_reloc_size (howto); |
5737 | buf = bfd_zmalloc (size); | |
5738 | if (buf == NULL) | |
5739 | return FALSE; | |
252b5132 | 5740 | |
116c20d2 NC |
5741 | rstat = _bfd_relocate_contents (howto, output_bfd, addend, buf); |
5742 | switch (rstat) | |
dc810e39 | 5743 | { |
116c20d2 NC |
5744 | case bfd_reloc_ok: |
5745 | break; | |
5746 | default: | |
5747 | case bfd_reloc_outofrange: | |
5748 | abort (); | |
5749 | case bfd_reloc_overflow: | |
baf9bed3 JB |
5750 | if (! ((*flinfo->info->callbacks->reloc_overflow) |
5751 | (flinfo->info, NULL, link_order->u.reloc.p->u.name, | |
116c20d2 NC |
5752 | howto->name, addend, NULL, NULL, (bfd_vma) 0))) |
5753 | { | |
5754 | free (buf); | |
5755 | return FALSE; | |
5756 | } | |
5757 | break; | |
5758 | } | |
5759 | ok = bfd_set_section_contents (output_bfd, output_section, (void *) buf, | |
5760 | (file_ptr) link_order->offset, size); | |
5761 | free (buf); | |
5762 | if (! ok) | |
5763 | return FALSE; | |
5764 | } | |
252b5132 | 5765 | |
116c20d2 NC |
5766 | /* Store the reloc information in the right place. It will get |
5767 | swapped and written out at the end of the final_link routine. */ | |
baf9bed3 | 5768 | irel = (flinfo->section_info[output_section->target_index].relocs |
116c20d2 | 5769 | + output_section->reloc_count); |
baf9bed3 | 5770 | rel_hash_ptr = (flinfo->section_info[output_section->target_index].rel_hashes |
116c20d2 | 5771 | + output_section->reloc_count); |
252b5132 | 5772 | |
116c20d2 NC |
5773 | memset (irel, 0, sizeof (struct internal_reloc)); |
5774 | *rel_hash_ptr = NULL; | |
252b5132 | 5775 | |
116c20d2 | 5776 | irel->r_vaddr = output_section->vma + link_order->offset; |
252b5132 | 5777 | |
116c20d2 NC |
5778 | if (h->indx >= 0) |
5779 | irel->r_symndx = h->indx; | |
5780 | else | |
5781 | { | |
5782 | /* Set the index to -2 to force this symbol to get written out. */ | |
5783 | h->indx = -2; | |
5784 | *rel_hash_ptr = h; | |
5785 | irel->r_symndx = 0; | |
5786 | } | |
252b5132 | 5787 | |
116c20d2 NC |
5788 | irel->r_type = howto->type; |
5789 | irel->r_size = howto->bitsize - 1; | |
5790 | if (howto->complain_on_overflow == complain_overflow_signed) | |
5791 | irel->r_size |= 0x80; | |
beb1bf64 | 5792 | |
116c20d2 | 5793 | ++output_section->reloc_count; |
dc810e39 | 5794 | |
116c20d2 | 5795 | /* Now output the reloc to the .loader section. */ |
baf9bed3 | 5796 | if (xcoff_hash_table (flinfo->info)->loader_section) |
116c20d2 | 5797 | { |
baf9bed3 | 5798 | if (!xcoff_create_ldrel (output_bfd, flinfo, output_section, |
b3d1832c RS |
5799 | output_bfd, irel, hsec, h)) |
5800 | return FALSE; | |
beb1bf64 | 5801 | } |
dc810e39 | 5802 | |
116c20d2 NC |
5803 | return TRUE; |
5804 | } | |
beb1bf64 | 5805 | |
116c20d2 | 5806 | /* Do the final link step. */ |
beb1bf64 | 5807 | |
116c20d2 NC |
5808 | bfd_boolean |
5809 | _bfd_xcoff_bfd_final_link (bfd *abfd, struct bfd_link_info *info) | |
5810 | { | |
5811 | bfd_size_type symesz; | |
baf9bed3 | 5812 | struct xcoff_final_link_info flinfo; |
116c20d2 NC |
5813 | asection *o; |
5814 | struct bfd_link_order *p; | |
5815 | bfd_size_type max_contents_size; | |
5816 | bfd_size_type max_sym_count; | |
5817 | bfd_size_type max_lineno_count; | |
5818 | bfd_size_type max_reloc_count; | |
5819 | bfd_size_type max_output_reloc_count; | |
5820 | file_ptr rel_filepos; | |
5821 | unsigned int relsz; | |
5822 | file_ptr line_filepos; | |
5823 | unsigned int linesz; | |
5824 | bfd *sub; | |
5825 | bfd_byte *external_relocs = NULL; | |
5826 | char strbuf[STRING_SIZE_SIZE]; | |
5827 | file_ptr pos; | |
5828 | bfd_size_type amt; | |
dc810e39 | 5829 | |
116c20d2 NC |
5830 | if (info->shared) |
5831 | abfd->flags |= DYNAMIC; | |
dc810e39 | 5832 | |
116c20d2 | 5833 | symesz = bfd_coff_symesz (abfd); |
dc810e39 | 5834 | |
baf9bed3 JB |
5835 | flinfo.info = info; |
5836 | flinfo.output_bfd = abfd; | |
5837 | flinfo.strtab = NULL; | |
5838 | flinfo.section_info = NULL; | |
5839 | flinfo.last_file_index = -1; | |
5840 | flinfo.toc_symindx = -1; | |
5841 | flinfo.internal_syms = NULL; | |
5842 | flinfo.sym_indices = NULL; | |
5843 | flinfo.outsyms = NULL; | |
5844 | flinfo.linenos = NULL; | |
5845 | flinfo.contents = NULL; | |
5846 | flinfo.external_relocs = NULL; | |
252b5132 | 5847 | |
b3d1832c RS |
5848 | if (xcoff_hash_table (info)->loader_section) |
5849 | { | |
baf9bed3 | 5850 | flinfo.ldsym = (xcoff_hash_table (info)->loader_section->contents |
b3d1832c | 5851 | + bfd_xcoff_ldhdrsz (abfd)); |
baf9bed3 | 5852 | flinfo.ldrel = (xcoff_hash_table (info)->loader_section->contents |
b3d1832c RS |
5853 | + bfd_xcoff_ldhdrsz (abfd) |
5854 | + (xcoff_hash_table (info)->ldhdr.l_nsyms | |
5855 | * bfd_xcoff_ldsymsz (abfd))); | |
5856 | } | |
5857 | else | |
5858 | { | |
baf9bed3 JB |
5859 | flinfo.ldsym = NULL; |
5860 | flinfo.ldrel = NULL; | |
b3d1832c | 5861 | } |
252b5132 | 5862 | |
116c20d2 | 5863 | xcoff_data (abfd)->coff.link_info = info; |
beb1bf64 | 5864 | |
baf9bed3 JB |
5865 | flinfo.strtab = _bfd_stringtab_init (); |
5866 | if (flinfo.strtab == NULL) | |
116c20d2 | 5867 | goto error_return; |
beb1bf64 | 5868 | |
3df13c4a RS |
5869 | /* Count the relocation entries required for the output file. |
5870 | (We've already counted the line numbers.) Determine a few | |
5871 | maximum sizes. */ | |
116c20d2 NC |
5872 | max_contents_size = 0; |
5873 | max_lineno_count = 0; | |
5874 | max_reloc_count = 0; | |
5875 | for (o = abfd->sections; o != NULL; o = o->next) | |
5876 | { | |
5877 | o->reloc_count = 0; | |
8423293d | 5878 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
dc810e39 | 5879 | { |
116c20d2 NC |
5880 | if (p->type == bfd_indirect_link_order) |
5881 | { | |
5882 | asection *sec; | |
dc810e39 | 5883 | |
116c20d2 | 5884 | sec = p->u.indirect.section; |
beb1bf64 | 5885 | |
116c20d2 NC |
5886 | /* Mark all sections which are to be included in the |
5887 | link. This will normally be every section. We need | |
5888 | to do this so that we can identify any sections which | |
5889 | the linker has decided to not include. */ | |
5890 | sec->linker_mark = TRUE; | |
beb1bf64 | 5891 | |
116c20d2 | 5892 | o->reloc_count += sec->reloc_count; |
dc810e39 | 5893 | |
9ea2b942 RS |
5894 | if ((sec->flags & SEC_IN_MEMORY) == 0) |
5895 | { | |
5896 | if (sec->rawsize > max_contents_size) | |
5897 | max_contents_size = sec->rawsize; | |
5898 | if (sec->size > max_contents_size) | |
5899 | max_contents_size = sec->size; | |
5900 | } | |
116c20d2 NC |
5901 | if (coff_section_data (sec->owner, sec) != NULL |
5902 | && xcoff_section_data (sec->owner, sec) != NULL | |
5903 | && (xcoff_section_data (sec->owner, sec)->lineno_count | |
5904 | > max_lineno_count)) | |
5905 | max_lineno_count = | |
5906 | xcoff_section_data (sec->owner, sec)->lineno_count; | |
5907 | if (sec->reloc_count > max_reloc_count) | |
5908 | max_reloc_count = sec->reloc_count; | |
5909 | } | |
5910 | else if (p->type == bfd_section_reloc_link_order | |
5911 | || p->type == bfd_symbol_reloc_link_order) | |
5912 | ++o->reloc_count; | |
dc810e39 | 5913 | } |
116c20d2 | 5914 | } |
252b5132 | 5915 | |
116c20d2 NC |
5916 | /* Compute the file positions for all the sections. */ |
5917 | if (abfd->output_has_begun) | |
5918 | { | |
5919 | if (xcoff_hash_table (info)->file_align != 0) | |
5920 | abort (); | |
5921 | } | |
5922 | else | |
5923 | { | |
5924 | bfd_vma file_align; | |
252b5132 | 5925 | |
116c20d2 NC |
5926 | file_align = xcoff_hash_table (info)->file_align; |
5927 | if (file_align != 0) | |
dc810e39 | 5928 | { |
116c20d2 NC |
5929 | bfd_boolean saw_contents; |
5930 | int indx; | |
116c20d2 | 5931 | file_ptr sofar; |
252b5132 | 5932 | |
116c20d2 NC |
5933 | /* Insert .pad sections before every section which has |
5934 | contents and is loaded, if it is preceded by some other | |
5935 | section which has contents and is loaded. */ | |
5936 | saw_contents = TRUE; | |
04dd1667 | 5937 | for (o = abfd->sections; o != NULL; o = o->next) |
116c20d2 | 5938 | { |
04dd1667 | 5939 | if (strcmp (o->name, ".pad") == 0) |
116c20d2 | 5940 | saw_contents = FALSE; |
04dd1667 AM |
5941 | else if ((o->flags & SEC_HAS_CONTENTS) != 0 |
5942 | && (o->flags & SEC_LOAD) != 0) | |
116c20d2 NC |
5943 | { |
5944 | if (! saw_contents) | |
5945 | saw_contents = TRUE; | |
5946 | else | |
5947 | { | |
5daa8fe7 | 5948 | asection *n; |
252b5132 | 5949 | |
116c20d2 NC |
5950 | /* Create a pad section and place it before the section |
5951 | that needs padding. This requires unlinking and | |
5952 | relinking the bfd's section list. */ | |
252b5132 | 5953 | |
117ed4f8 AM |
5954 | n = bfd_make_section_anyway_with_flags (abfd, ".pad", |
5955 | SEC_HAS_CONTENTS); | |
116c20d2 | 5956 | n->alignment_power = 0; |
252b5132 | 5957 | |
5daa8fe7 | 5958 | bfd_section_list_remove (abfd, n); |
04dd1667 | 5959 | bfd_section_list_insert_before (abfd, o, n); |
116c20d2 NC |
5960 | saw_contents = FALSE; |
5961 | } | |
5962 | } | |
5963 | } | |
5964 | ||
5965 | /* Reset the section indices after inserting the new | |
5966 | sections. */ | |
5967 | indx = 0; | |
5968 | for (o = abfd->sections; o != NULL; o = o->next) | |
5969 | { | |
5970 | ++indx; | |
5971 | o->target_index = indx; | |
5972 | } | |
5973 | BFD_ASSERT ((unsigned int) indx == abfd->section_count); | |
5974 | ||
5975 | /* Work out appropriate sizes for the .pad sections to force | |
5976 | each section to land on a page boundary. This bit of | |
5977 | code knows what compute_section_file_positions is going | |
5978 | to do. */ | |
5979 | sofar = bfd_coff_filhsz (abfd); | |
5980 | sofar += bfd_coff_aoutsz (abfd); | |
5981 | sofar += abfd->section_count * bfd_coff_scnhsz (abfd); | |
5982 | for (o = abfd->sections; o != NULL; o = o->next) | |
5983 | if ((bfd_xcoff_is_reloc_count_overflow | |
5984 | (abfd, (bfd_vma) o->reloc_count)) | |
5985 | || (bfd_xcoff_is_lineno_count_overflow | |
5986 | (abfd, (bfd_vma) o->lineno_count))) | |
5987 | /* 64 does not overflow, need to check if 32 does */ | |
5988 | sofar += bfd_coff_scnhsz (abfd); | |
252b5132 | 5989 | |
116c20d2 | 5990 | for (o = abfd->sections; o != NULL; o = o->next) |
dc810e39 | 5991 | { |
116c20d2 NC |
5992 | if (strcmp (o->name, ".pad") == 0) |
5993 | { | |
5994 | bfd_vma pageoff; | |
252b5132 | 5995 | |
116c20d2 NC |
5996 | BFD_ASSERT (o->size == 0); |
5997 | pageoff = sofar & (file_align - 1); | |
5998 | if (pageoff != 0) | |
5999 | { | |
6000 | o->size = file_align - pageoff; | |
6001 | sofar += file_align - pageoff; | |
6002 | o->flags |= SEC_HAS_CONTENTS; | |
6003 | } | |
6004 | } | |
6005 | else | |
6006 | { | |
6007 | if ((o->flags & SEC_HAS_CONTENTS) != 0) | |
6008 | sofar += BFD_ALIGN (o->size, | |
6009 | 1 << o->alignment_power); | |
6010 | } | |
252b5132 RH |
6011 | } |
6012 | } | |
116c20d2 NC |
6013 | |
6014 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
6015 | goto error_return; | |
252b5132 RH |
6016 | } |
6017 | ||
116c20d2 NC |
6018 | /* Allocate space for the pointers we need to keep for the relocs. */ |
6019 | { | |
6020 | unsigned int i; | |
dc810e39 | 6021 | |
116c20d2 NC |
6022 | /* We use section_count + 1, rather than section_count, because |
6023 | the target_index fields are 1 based. */ | |
6024 | amt = abfd->section_count + 1; | |
6025 | amt *= sizeof (struct xcoff_link_section_info); | |
baf9bed3 JB |
6026 | flinfo.section_info = bfd_malloc (amt); |
6027 | if (flinfo.section_info == NULL) | |
116c20d2 NC |
6028 | goto error_return; |
6029 | for (i = 0; i <= abfd->section_count; i++) | |
6030 | { | |
baf9bed3 JB |
6031 | flinfo.section_info[i].relocs = NULL; |
6032 | flinfo.section_info[i].rel_hashes = NULL; | |
6033 | flinfo.section_info[i].toc_rel_hashes = NULL; | |
116c20d2 NC |
6034 | } |
6035 | } | |
beb1bf64 | 6036 | |
116c20d2 NC |
6037 | /* Set the file positions for the relocs. */ |
6038 | rel_filepos = obj_relocbase (abfd); | |
6039 | relsz = bfd_coff_relsz (abfd); | |
6040 | max_output_reloc_count = 0; | |
6041 | for (o = abfd->sections; o != NULL; o = o->next) | |
6042 | { | |
6043 | if (o->reloc_count == 0) | |
6044 | o->rel_filepos = 0; | |
dc810e39 AM |
6045 | else |
6046 | { | |
116c20d2 NC |
6047 | /* A stripped file has no relocs. However, we still |
6048 | allocate the buffers, so that later code doesn't have to | |
6049 | worry about whether we are stripping or not. */ | |
6050 | if (info->strip == strip_all) | |
6051 | o->rel_filepos = 0; | |
6052 | else | |
6053 | { | |
6054 | o->flags |= SEC_RELOC; | |
6055 | o->rel_filepos = rel_filepos; | |
6056 | rel_filepos += o->reloc_count * relsz; | |
6057 | } | |
252b5132 | 6058 | |
116c20d2 NC |
6059 | /* We don't know the indices of global symbols until we have |
6060 | written out all the local symbols. For each section in | |
6061 | the output file, we keep an array of pointers to hash | |
6062 | table entries. Each entry in the array corresponds to a | |
6063 | reloc. When we find a reloc against a global symbol, we | |
6064 | set the corresponding entry in this array so that we can | |
6065 | fix up the symbol index after we have written out all the | |
6066 | local symbols. | |
252b5132 | 6067 | |
116c20d2 NC |
6068 | Because of this problem, we also keep the relocs in |
6069 | memory until the end of the link. This wastes memory. | |
6070 | We could backpatch the file later, I suppose, although it | |
6071 | would be slow. */ | |
6072 | amt = o->reloc_count; | |
6073 | amt *= sizeof (struct internal_reloc); | |
baf9bed3 | 6074 | flinfo.section_info[o->target_index].relocs = bfd_malloc (amt); |
252b5132 | 6075 | |
116c20d2 NC |
6076 | amt = o->reloc_count; |
6077 | amt *= sizeof (struct xcoff_link_hash_entry *); | |
baf9bed3 | 6078 | flinfo.section_info[o->target_index].rel_hashes = bfd_malloc (amt); |
252b5132 | 6079 | |
baf9bed3 JB |
6080 | if (flinfo.section_info[o->target_index].relocs == NULL |
6081 | || flinfo.section_info[o->target_index].rel_hashes == NULL) | |
116c20d2 | 6082 | goto error_return; |
beb1bf64 | 6083 | |
116c20d2 NC |
6084 | if (o->reloc_count > max_output_reloc_count) |
6085 | max_output_reloc_count = o->reloc_count; | |
dc810e39 | 6086 | } |
116c20d2 | 6087 | } |
dc810e39 | 6088 | |
116c20d2 NC |
6089 | /* We now know the size of the relocs, so we can determine the file |
6090 | positions of the line numbers. */ | |
6091 | line_filepos = rel_filepos; | |
baf9bed3 | 6092 | flinfo.line_filepos = line_filepos; |
116c20d2 NC |
6093 | linesz = bfd_coff_linesz (abfd); |
6094 | for (o = abfd->sections; o != NULL; o = o->next) | |
6095 | { | |
6096 | if (o->lineno_count == 0) | |
6097 | o->line_filepos = 0; | |
252b5132 RH |
6098 | else |
6099 | { | |
116c20d2 NC |
6100 | o->line_filepos = line_filepos; |
6101 | line_filepos += o->lineno_count * linesz; | |
252b5132 | 6102 | } |
252b5132 | 6103 | |
116c20d2 NC |
6104 | /* Reset the reloc and lineno counts, so that we can use them to |
6105 | count the number of entries we have output so far. */ | |
6106 | o->reloc_count = 0; | |
6107 | o->lineno_count = 0; | |
252b5132 RH |
6108 | } |
6109 | ||
116c20d2 | 6110 | obj_sym_filepos (abfd) = line_filepos; |
252b5132 | 6111 | |
116c20d2 NC |
6112 | /* Figure out the largest number of symbols in an input BFD. Take |
6113 | the opportunity to clear the output_has_begun fields of all the | |
6114 | input BFD's. We want at least 6 symbols, since that is the | |
6115 | number which xcoff_write_global_symbol may need. */ | |
6116 | max_sym_count = 6; | |
6117 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
252b5132 | 6118 | { |
116c20d2 NC |
6119 | bfd_size_type sz; |
6120 | ||
6121 | sub->output_has_begun = FALSE; | |
6122 | sz = obj_raw_syment_count (sub); | |
6123 | if (sz > max_sym_count) | |
6124 | max_sym_count = sz; | |
252b5132 RH |
6125 | } |
6126 | ||
116c20d2 NC |
6127 | /* Allocate some buffers used while linking. */ |
6128 | amt = max_sym_count * sizeof (struct internal_syment); | |
baf9bed3 | 6129 | flinfo.internal_syms = bfd_malloc (amt); |
252b5132 | 6130 | |
116c20d2 | 6131 | amt = max_sym_count * sizeof (long); |
baf9bed3 | 6132 | flinfo.sym_indices = bfd_malloc (amt); |
252b5132 | 6133 | |
116c20d2 | 6134 | amt = (max_sym_count + 1) * symesz; |
baf9bed3 | 6135 | flinfo.outsyms = bfd_malloc (amt); |
252b5132 | 6136 | |
116c20d2 | 6137 | amt = max_lineno_count * bfd_coff_linesz (abfd); |
baf9bed3 | 6138 | flinfo.linenos = bfd_malloc (amt); |
252b5132 | 6139 | |
116c20d2 | 6140 | amt = max_contents_size; |
baf9bed3 | 6141 | flinfo.contents = bfd_malloc (amt); |
252b5132 | 6142 | |
116c20d2 | 6143 | amt = max_reloc_count * relsz; |
baf9bed3 JB |
6144 | flinfo.external_relocs = bfd_malloc (amt); |
6145 | ||
6146 | if ((flinfo.internal_syms == NULL && max_sym_count > 0) | |
6147 | || (flinfo.sym_indices == NULL && max_sym_count > 0) | |
6148 | || flinfo.outsyms == NULL | |
6149 | || (flinfo.linenos == NULL && max_lineno_count > 0) | |
6150 | || (flinfo.contents == NULL && max_contents_size > 0) | |
6151 | || (flinfo.external_relocs == NULL && max_reloc_count > 0)) | |
116c20d2 NC |
6152 | goto error_return; |
6153 | ||
6154 | obj_raw_syment_count (abfd) = 0; | |
47dfb2ca RS |
6155 | |
6156 | /* Find a TOC symbol, if we need one. */ | |
baf9bed3 | 6157 | if (!xcoff_find_tc0 (abfd, &flinfo)) |
47dfb2ca | 6158 | goto error_return; |
116c20d2 NC |
6159 | |
6160 | /* We now know the position of everything in the file, except that | |
6161 | we don't know the size of the symbol table and therefore we don't | |
6162 | know where the string table starts. We just build the string | |
6163 | table in memory as we go along. We process all the relocations | |
6164 | for a single input file at once. */ | |
6165 | for (o = abfd->sections; o != NULL; o = o->next) | |
6166 | { | |
8423293d | 6167 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
252b5132 | 6168 | { |
116c20d2 NC |
6169 | if (p->type == bfd_indirect_link_order |
6170 | && p->u.indirect.section->owner->xvec == abfd->xvec) | |
252b5132 | 6171 | { |
116c20d2 NC |
6172 | sub = p->u.indirect.section->owner; |
6173 | if (! sub->output_has_begun) | |
252b5132 | 6174 | { |
baf9bed3 | 6175 | if (! xcoff_link_input_bfd (&flinfo, sub)) |
116c20d2 NC |
6176 | goto error_return; |
6177 | sub->output_has_begun = TRUE; | |
252b5132 RH |
6178 | } |
6179 | } | |
116c20d2 NC |
6180 | else if (p->type == bfd_section_reloc_link_order |
6181 | || p->type == bfd_symbol_reloc_link_order) | |
6182 | { | |
baf9bed3 | 6183 | if (! xcoff_reloc_link_order (abfd, &flinfo, o, p)) |
116c20d2 NC |
6184 | goto error_return; |
6185 | } | |
6186 | else | |
6187 | { | |
6188 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
6189 | goto error_return; | |
6190 | } | |
252b5132 RH |
6191 | } |
6192 | } | |
116c20d2 NC |
6193 | |
6194 | /* Free up the buffers used by xcoff_link_input_bfd. */ | |
baf9bed3 | 6195 | if (flinfo.internal_syms != NULL) |
252b5132 | 6196 | { |
baf9bed3 JB |
6197 | free (flinfo.internal_syms); |
6198 | flinfo.internal_syms = NULL; | |
116c20d2 | 6199 | } |
baf9bed3 | 6200 | if (flinfo.sym_indices != NULL) |
116c20d2 | 6201 | { |
baf9bed3 JB |
6202 | free (flinfo.sym_indices); |
6203 | flinfo.sym_indices = NULL; | |
116c20d2 | 6204 | } |
baf9bed3 | 6205 | if (flinfo.linenos != NULL) |
116c20d2 | 6206 | { |
baf9bed3 JB |
6207 | free (flinfo.linenos); |
6208 | flinfo.linenos = NULL; | |
116c20d2 | 6209 | } |
baf9bed3 | 6210 | if (flinfo.contents != NULL) |
116c20d2 | 6211 | { |
baf9bed3 JB |
6212 | free (flinfo.contents); |
6213 | flinfo.contents = NULL; | |
116c20d2 | 6214 | } |
baf9bed3 | 6215 | if (flinfo.external_relocs != NULL) |
116c20d2 | 6216 | { |
baf9bed3 JB |
6217 | free (flinfo.external_relocs); |
6218 | flinfo.external_relocs = NULL; | |
252b5132 | 6219 | } |
252b5132 | 6220 | |
116c20d2 NC |
6221 | /* The value of the last C_FILE symbol is supposed to be -1. Write |
6222 | it out again. */ | |
baf9bed3 | 6223 | if (flinfo.last_file_index != -1) |
116c20d2 | 6224 | { |
baf9bed3 JB |
6225 | flinfo.last_file.n_value = -(bfd_vma) 1; |
6226 | bfd_coff_swap_sym_out (abfd, (void *) &flinfo.last_file, | |
6227 | (void *) flinfo.outsyms); | |
6228 | pos = obj_sym_filepos (abfd) + flinfo.last_file_index * symesz; | |
116c20d2 | 6229 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
baf9bed3 | 6230 | || bfd_bwrite (flinfo.outsyms, symesz, abfd) != symesz) |
116c20d2 NC |
6231 | goto error_return; |
6232 | } | |
252b5132 | 6233 | |
116c20d2 NC |
6234 | /* Write out all the global symbols which do not come from XCOFF |
6235 | input files. */ | |
6236 | xcoff_link_hash_traverse (xcoff_hash_table (info), | |
6237 | xcoff_write_global_symbol, | |
baf9bed3 | 6238 | (void *) &flinfo); |
252b5132 | 6239 | |
baf9bed3 | 6240 | if (flinfo.outsyms != NULL) |
252b5132 | 6241 | { |
baf9bed3 JB |
6242 | free (flinfo.outsyms); |
6243 | flinfo.outsyms = NULL; | |
116c20d2 | 6244 | } |
252b5132 | 6245 | |
116c20d2 NC |
6246 | /* Now that we have written out all the global symbols, we know the |
6247 | symbol indices to use for relocs against them, and we can finally | |
6248 | write out the relocs. */ | |
6249 | amt = max_output_reloc_count * relsz; | |
6250 | external_relocs = bfd_malloc (amt); | |
6251 | if (external_relocs == NULL && max_output_reloc_count != 0) | |
6252 | goto error_return; | |
252b5132 | 6253 | |
116c20d2 NC |
6254 | for (o = abfd->sections; o != NULL; o = o->next) |
6255 | { | |
6256 | struct internal_reloc *irel; | |
6257 | struct internal_reloc *irelend; | |
6258 | struct xcoff_link_hash_entry **rel_hash; | |
6259 | struct xcoff_toc_rel_hash *toc_rel_hash; | |
6260 | bfd_byte *erel; | |
6261 | bfd_size_type rel_size; | |
252b5132 | 6262 | |
116c20d2 NC |
6263 | /* A stripped file has no relocs. */ |
6264 | if (info->strip == strip_all) | |
6265 | { | |
6266 | o->reloc_count = 0; | |
6267 | continue; | |
6268 | } | |
252b5132 | 6269 | |
116c20d2 NC |
6270 | if (o->reloc_count == 0) |
6271 | continue; | |
252b5132 | 6272 | |
baf9bed3 | 6273 | irel = flinfo.section_info[o->target_index].relocs; |
116c20d2 | 6274 | irelend = irel + o->reloc_count; |
baf9bed3 | 6275 | rel_hash = flinfo.section_info[o->target_index].rel_hashes; |
116c20d2 NC |
6276 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) |
6277 | { | |
6278 | if (*rel_hash != NULL) | |
6279 | { | |
6280 | if ((*rel_hash)->indx < 0) | |
6281 | { | |
6282 | if (! ((*info->callbacks->unattached_reloc) | |
6283 | (info, (*rel_hash)->root.root.string, | |
6284 | NULL, o, irel->r_vaddr))) | |
6285 | goto error_return; | |
6286 | (*rel_hash)->indx = 0; | |
6287 | } | |
6288 | irel->r_symndx = (*rel_hash)->indx; | |
6289 | } | |
6290 | } | |
252b5132 | 6291 | |
baf9bed3 | 6292 | for (toc_rel_hash = flinfo.section_info[o->target_index].toc_rel_hashes; |
116c20d2 NC |
6293 | toc_rel_hash != NULL; |
6294 | toc_rel_hash = toc_rel_hash->next) | |
6295 | { | |
6296 | if (toc_rel_hash->h->u.toc_indx < 0) | |
6297 | { | |
6298 | if (! ((*info->callbacks->unattached_reloc) | |
6299 | (info, toc_rel_hash->h->root.root.string, | |
6300 | NULL, o, toc_rel_hash->rel->r_vaddr))) | |
6301 | goto error_return; | |
6302 | toc_rel_hash->h->u.toc_indx = 0; | |
6303 | } | |
6304 | toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx; | |
6305 | } | |
252b5132 | 6306 | |
116c20d2 NC |
6307 | /* XCOFF requires that the relocs be sorted by address. We tend |
6308 | to produce them in the order in which their containing csects | |
6309 | appear in the symbol table, which is not necessarily by | |
6310 | address. So we sort them here. There may be a better way to | |
6311 | do this. */ | |
baf9bed3 | 6312 | qsort ((void *) flinfo.section_info[o->target_index].relocs, |
116c20d2 NC |
6313 | o->reloc_count, sizeof (struct internal_reloc), |
6314 | xcoff_sort_relocs); | |
252b5132 | 6315 | |
baf9bed3 | 6316 | irel = flinfo.section_info[o->target_index].relocs; |
116c20d2 NC |
6317 | irelend = irel + o->reloc_count; |
6318 | erel = external_relocs; | |
6319 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
6320 | bfd_coff_swap_reloc_out (abfd, (void *) irel, (void *) erel); | |
252b5132 | 6321 | |
116c20d2 NC |
6322 | rel_size = relsz * o->reloc_count; |
6323 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
6324 | || bfd_bwrite ((void *) external_relocs, rel_size, abfd) != rel_size) | |
6325 | goto error_return; | |
252b5132 RH |
6326 | } |
6327 | ||
116c20d2 | 6328 | if (external_relocs != NULL) |
252b5132 | 6329 | { |
116c20d2 NC |
6330 | free (external_relocs); |
6331 | external_relocs = NULL; | |
252b5132 RH |
6332 | } |
6333 | ||
116c20d2 | 6334 | /* Free up the section information. */ |
baf9bed3 | 6335 | if (flinfo.section_info != NULL) |
252b5132 | 6336 | { |
116c20d2 | 6337 | unsigned int i; |
252b5132 | 6338 | |
116c20d2 | 6339 | for (i = 0; i < abfd->section_count; i++) |
252b5132 | 6340 | { |
baf9bed3 JB |
6341 | if (flinfo.section_info[i].relocs != NULL) |
6342 | free (flinfo.section_info[i].relocs); | |
6343 | if (flinfo.section_info[i].rel_hashes != NULL) | |
6344 | free (flinfo.section_info[i].rel_hashes); | |
252b5132 | 6345 | } |
baf9bed3 JB |
6346 | free (flinfo.section_info); |
6347 | flinfo.section_info = NULL; | |
252b5132 RH |
6348 | } |
6349 | ||
116c20d2 | 6350 | /* Write out the loader section contents. */ |
116c20d2 | 6351 | o = xcoff_hash_table (info)->loader_section; |
b3d1832c RS |
6352 | if (o) |
6353 | { | |
baf9bed3 | 6354 | BFD_ASSERT ((bfd_byte *) flinfo.ldrel |
b3d1832c RS |
6355 | == (xcoff_hash_table (info)->loader_section->contents |
6356 | + xcoff_hash_table (info)->ldhdr.l_impoff)); | |
6357 | if (!bfd_set_section_contents (abfd, o->output_section, o->contents, | |
6358 | (file_ptr) o->output_offset, o->size)) | |
6359 | goto error_return; | |
6360 | } | |
252b5132 | 6361 | |
116c20d2 NC |
6362 | /* Write out the magic sections. */ |
6363 | o = xcoff_hash_table (info)->linkage_section; | |
6364 | if (o->size > 0 | |
6365 | && ! bfd_set_section_contents (abfd, o->output_section, o->contents, | |
6366 | (file_ptr) o->output_offset, | |
6367 | o->size)) | |
6368 | goto error_return; | |
6369 | o = xcoff_hash_table (info)->toc_section; | |
6370 | if (o->size > 0 | |
6371 | && ! bfd_set_section_contents (abfd, o->output_section, o->contents, | |
6372 | (file_ptr) o->output_offset, | |
6373 | o->size)) | |
6374 | goto error_return; | |
6375 | o = xcoff_hash_table (info)->descriptor_section; | |
6376 | if (o->size > 0 | |
6377 | && ! bfd_set_section_contents (abfd, o->output_section, o->contents, | |
6378 | (file_ptr) o->output_offset, | |
6379 | o->size)) | |
6380 | goto error_return; | |
252b5132 | 6381 | |
116c20d2 NC |
6382 | /* Write out the string table. */ |
6383 | pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz; | |
6384 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
6385 | goto error_return; | |
6386 | H_PUT_32 (abfd, | |
baf9bed3 | 6387 | _bfd_stringtab_size (flinfo.strtab) + STRING_SIZE_SIZE, |
116c20d2 NC |
6388 | strbuf); |
6389 | amt = STRING_SIZE_SIZE; | |
6390 | if (bfd_bwrite (strbuf, amt, abfd) != amt) | |
6391 | goto error_return; | |
baf9bed3 | 6392 | if (! _bfd_stringtab_emit (abfd, flinfo.strtab)) |
116c20d2 | 6393 | goto error_return; |
252b5132 | 6394 | |
baf9bed3 | 6395 | _bfd_stringtab_free (flinfo.strtab); |
252b5132 | 6396 | |
116c20d2 NC |
6397 | /* Write out the debugging string table. */ |
6398 | o = xcoff_hash_table (info)->debug_section; | |
6399 | if (o != NULL) | |
252b5132 | 6400 | { |
116c20d2 | 6401 | struct bfd_strtab_hash *debug_strtab; |
252b5132 | 6402 | |
116c20d2 NC |
6403 | debug_strtab = xcoff_hash_table (info)->debug_strtab; |
6404 | BFD_ASSERT (o->output_section->size - o->output_offset | |
6405 | >= _bfd_stringtab_size (debug_strtab)); | |
6406 | pos = o->output_section->filepos + o->output_offset; | |
6407 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
6408 | goto error_return; | |
6409 | if (! _bfd_stringtab_emit (abfd, debug_strtab)) | |
6410 | goto error_return; | |
6411 | } | |
252b5132 | 6412 | |
116c20d2 NC |
6413 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to |
6414 | not try to write out the symbols. */ | |
6415 | bfd_get_symcount (abfd) = 0; | |
252b5132 | 6416 | |
116c20d2 | 6417 | return TRUE; |
252b5132 | 6418 | |
116c20d2 | 6419 | error_return: |
baf9bed3 JB |
6420 | if (flinfo.strtab != NULL) |
6421 | _bfd_stringtab_free (flinfo.strtab); | |
252b5132 | 6422 | |
baf9bed3 | 6423 | if (flinfo.section_info != NULL) |
252b5132 | 6424 | { |
116c20d2 | 6425 | unsigned int i; |
252b5132 | 6426 | |
116c20d2 | 6427 | for (i = 0; i < abfd->section_count; i++) |
252b5132 | 6428 | { |
baf9bed3 JB |
6429 | if (flinfo.section_info[i].relocs != NULL) |
6430 | free (flinfo.section_info[i].relocs); | |
6431 | if (flinfo.section_info[i].rel_hashes != NULL) | |
6432 | free (flinfo.section_info[i].rel_hashes); | |
252b5132 | 6433 | } |
baf9bed3 JB |
6434 | free (flinfo.section_info); |
6435 | } | |
6436 | ||
6437 | if (flinfo.internal_syms != NULL) | |
6438 | free (flinfo.internal_syms); | |
6439 | if (flinfo.sym_indices != NULL) | |
6440 | free (flinfo.sym_indices); | |
6441 | if (flinfo.outsyms != NULL) | |
6442 | free (flinfo.outsyms); | |
6443 | if (flinfo.linenos != NULL) | |
6444 | free (flinfo.linenos); | |
6445 | if (flinfo.contents != NULL) | |
6446 | free (flinfo.contents); | |
6447 | if (flinfo.external_relocs != NULL) | |
6448 | free (flinfo.external_relocs); | |
116c20d2 NC |
6449 | if (external_relocs != NULL) |
6450 | free (external_relocs); | |
6451 | return FALSE; | |
252b5132 | 6452 | } |