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ELF output symbol hooks int vs. bfd_boolean
[deliverable/binutils-gdb.git] / bfd / elfnn-ia64.c
CommitLineData
cbe79dfe 1/* IA-64 support for 64-bit ELF
250d07de 2 Copyright (C) 1998-2021 Free Software Foundation, Inc.
cbe79dfe
TG		 3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22#include "sysdep.h"
23#include "bfd.h"
24#include "libbfd.h"
25#include "elf-bfd.h"
26#include "opcode/ia64.h"
27#include "elf/ia64.h"
28#include "objalloc.h"
29#include "hashtab.h"
cbe79dfe
TG		 30#include "elfxx-ia64.h"
31
32#define ARCH_SIZE NN
33
34#if ARCH_SIZE == 64
35#define LOG_SECTION_ALIGN 3
36#endif
37
38#if ARCH_SIZE == 32
39#define LOG_SECTION_ALIGN 2
40#endif
41
b26a3d58
ST		 42#define is_ia64_elf(bfd) \
43 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
44 && elf_object_id (bfd) == IA64_ELF_DATA)
45
cbe79dfe
TG		 46typedef struct bfd_hash_entry *(*new_hash_entry_func)
47 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
48
49/* In dynamically (linker-) created sections, we generally need to keep track
50 of the place a symbol or expression got allocated to. This is done via hash
51 tables that store entries of the following type. */
52
53struct elfNN_ia64_dyn_sym_info
54{
55 /* The addend for which this entry is relevant. */
56 bfd_vma addend;
57
58 bfd_vma got_offset;
59 bfd_vma fptr_offset;
60 bfd_vma pltoff_offset;
61 bfd_vma plt_offset;
62 bfd_vma plt2_offset;
63 bfd_vma tprel_offset;
64 bfd_vma dtpmod_offset;
65 bfd_vma dtprel_offset;
66
67 /* The symbol table entry, if any, that this was derived from. */
68 struct elf_link_hash_entry *h;
69
70 /* Used to count non-got, non-plt relocations for delayed sizing
71 of relocation sections. */
72 struct elfNN_ia64_dyn_reloc_entry
73 {
74 struct elfNN_ia64_dyn_reloc_entry *next;
75 asection *srel;
76 int type;
77 int count;
78
79 /* Is this reloc against readonly section? */
80 bfd_boolean reltext;
81 } *reloc_entries;
82
83 /* TRUE when the section contents have been updated. */
84 unsigned got_done : 1;
85 unsigned fptr_done : 1;
86 unsigned pltoff_done : 1;
87 unsigned tprel_done : 1;
88 unsigned dtpmod_done : 1;
89 unsigned dtprel_done : 1;
90
91 /* TRUE for the different kinds of linker data we want created. */
92 unsigned want_got : 1;
93 unsigned want_gotx : 1;
94 unsigned want_fptr : 1;
95 unsigned want_ltoff_fptr : 1;
96 unsigned want_plt : 1;
97 unsigned want_plt2 : 1;
98 unsigned want_pltoff : 1;
99 unsigned want_tprel : 1;
100 unsigned want_dtpmod : 1;
101 unsigned want_dtprel : 1;
102};
103
104struct elfNN_ia64_local_hash_entry
105{
106 int id;
107 unsigned int r_sym;
108 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
109 unsigned int count;
110 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
111 unsigned int sorted_count;
112 /* The size of elfNN_ia64_dyn_sym_info array. */
113 unsigned int size;
114 /* The array of elfNN_ia64_dyn_sym_info. */
115 struct elfNN_ia64_dyn_sym_info *info;
116
117 /* TRUE if this hash entry's addends was translated for
118 SHF_MERGE optimization. */
119 unsigned sec_merge_done : 1;
120};
121
122struct elfNN_ia64_link_hash_entry
123{
124 struct elf_link_hash_entry root;
125 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
126 unsigned int count;
127 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
128 unsigned int sorted_count;
129 /* The size of elfNN_ia64_dyn_sym_info array. */
130 unsigned int size;
131 /* The array of elfNN_ia64_dyn_sym_info. */
132 struct elfNN_ia64_dyn_sym_info *info;
133};
134
135struct elfNN_ia64_link_hash_table
136{
137 /* The main hash table. */
138 struct elf_link_hash_table root;
139
140 asection *fptr_sec; /* Function descriptor table (or NULL). */
141 asection *rel_fptr_sec; /* Dynamic relocation section for same. */
142 asection *pltoff_sec; /* Private descriptors for plt (or NULL). */
143 asection *rel_pltoff_sec; /* Dynamic relocation section for same. */
144
145 bfd_size_type minplt_entries; /* Number of minplt entries. */
cbe79dfe
TG		 146 unsigned self_dtpmod_done : 1;/* Has self DTPMOD entry been finished? */
147 bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry. */
148 /* There are maybe R_IA64_GPREL22 relocations, including those
149 optimized from R_IA64_LTOFF22X, against non-SHF_IA_64_SHORT
150 sections. We need to record those sections so that we can choose
151 a proper GP to cover all R_IA64_GPREL22 relocations. */
152 asection *max_short_sec; /* Maximum short output section. */
153 bfd_vma max_short_offset; /* Maximum short offset. */
154 asection *min_short_sec; /* Minimum short output section. */
155 bfd_vma min_short_offset; /* Minimum short offset. */
156
157 htab_t loc_hash_table;
158 void *loc_hash_memory;
159};
160
161struct elfNN_ia64_allocate_data
162{
163 struct bfd_link_info *info;
164 bfd_size_type ofs;
165 bfd_boolean only_got;
166};
167
168#define elfNN_ia64_hash_table(p) \
0f55320b
AM		 169 ((is_elf_hash_table ((p)->hash) \
170 && elf_hash_table_id (elf_hash_table (p)) == IA64_ELF_DATA) \
171 ? (struct elfNN_ia64_link_hash_table *) (p)->hash : NULL)
cbe79dfe
TG		 172
173static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
174 (struct elfNN_ia64_link_hash_table *ia64_info,
175 struct elf_link_hash_entry *h,
176 bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create);
177static bfd_boolean elfNN_ia64_dynamic_symbol_p
178 (struct elf_link_hash_entry *h, struct bfd_link_info *info, int);
179static bfd_boolean elfNN_ia64_choose_gp
180 (bfd *abfd, struct bfd_link_info *info, bfd_boolean final);
181static void elfNN_ia64_dyn_sym_traverse
182 (struct elfNN_ia64_link_hash_table *ia64_info,
2c3fc389
NC		 183 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
184 void * info);
cbe79dfe 185static bfd_boolean allocate_global_data_got
2c3fc389 186 (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
cbe79dfe 187static bfd_boolean allocate_global_fptr_got
2c3fc389 188 (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
cbe79dfe 189static bfd_boolean allocate_local_got
2c3fc389 190 (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
cbe79dfe
TG		 191static bfd_boolean elfNN_ia64_hpux_vec
192 (const bfd_target *vec);
193static bfd_boolean allocate_dynrel_entries
2c3fc389 194 (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
cbe79dfe
TG		 195static asection *get_pltoff
196 (bfd *abfd, struct bfd_link_info *info,
197 struct elfNN_ia64_link_hash_table *ia64_info);
198\f
199/* ia64-specific relocation. */
200
201/* Given a ELF reloc, return the matching HOWTO structure. */
202
f3185997 203static bfd_boolean
cbe79dfe
TG		 204elfNN_ia64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
205 arelent *bfd_reloc,
206 Elf_Internal_Rela *elf_reloc)
207{
f3185997
NC		 208 unsigned int r_type = ELF32_R_TYPE (elf_reloc->r_info);
209
210 bfd_reloc->howto = ia64_elf_lookup_howto (r_type);
211 if (bfd_reloc->howto == NULL)
212 {
213 /* xgettext:c-format */
214 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
215 abfd, r_type);
216 bfd_set_error (bfd_error_bad_value);
217 return FALSE;
218 }
219
220 return TRUE;
cbe79dfe
TG		 221}
222\f
223#define PLT_HEADER_SIZE (3 * 16)
224#define PLT_MIN_ENTRY_SIZE (1 * 16)
225#define PLT_FULL_ENTRY_SIZE (2 * 16)
226#define PLT_RESERVED_WORDS 3
227
228static const bfd_byte plt_header[PLT_HEADER_SIZE] =
229{
07d6d2b8
AM		 230 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
231 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
232 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
233 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
234 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
235 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
236 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
237 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
238 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
cbe79dfe
TG		 239};
240
241static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
242{
07d6d2b8
AM		 243 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
244 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
245 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
cbe79dfe
TG		 246};
247
248static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
249{
07d6d2b8
AM		 250 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
251 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
252 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
253 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
254 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
255 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
cbe79dfe
TG		 256};
257
258#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
259
260static const bfd_byte oor_brl[16] =
261{
07d6d2b8
AM		 262 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
cbe79dfe
TG		 264 0x00, 0x00, 0x00, 0xc0
265};
266
267static const bfd_byte oor_ip[48] =
268{
07d6d2b8
AM		 269 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
270 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
cbe79dfe 271 0x01, 0x00, 0x00, 0x60,
07d6d2b8
AM		 272 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
273 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
274 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
275 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
276 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
277 0x60, 0x00, 0x80, 0x00 /* br b6;; */
cbe79dfe
TG		 278};
279
280static size_t oor_branch_size = sizeof (oor_brl);
281
282void
283bfd_elfNN_ia64_after_parse (int itanium)
284{
285 oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
286}
287\f
288
289/* Rename some of the generic section flags to better document how they
290 are used here. */
291#define skip_relax_pass_0 sec_flg0
292#define skip_relax_pass_1 sec_flg1
293
294/* These functions do relaxation for IA-64 ELF. */
295
296static void
297elfNN_ia64_update_short_info (asection *sec, bfd_vma offset,
298 struct elfNN_ia64_link_hash_table *ia64_info)
299{
300 /* Skip ABS and SHF_IA_64_SHORT sections. */
301 if (sec == bfd_abs_section_ptr
302 || (sec->flags & SEC_SMALL_DATA) != 0)
303 return;
304
305 if (!ia64_info->min_short_sec)
306 {
307 ia64_info->max_short_sec = sec;
308 ia64_info->max_short_offset = offset;
309 ia64_info->min_short_sec = sec;
310 ia64_info->min_short_offset = offset;
311 }
312 else if (sec == ia64_info->max_short_sec
313 && offset > ia64_info->max_short_offset)
314 ia64_info->max_short_offset = offset;
315 else if (sec == ia64_info->min_short_sec
316 && offset < ia64_info->min_short_offset)
317 ia64_info->min_short_offset = offset;
318 else if (sec->output_section->vma
319 > ia64_info->max_short_sec->vma)
320 {
321 ia64_info->max_short_sec = sec;
322 ia64_info->max_short_offset = offset;
323 }
324 else if (sec->output_section->vma
325 < ia64_info->min_short_sec->vma)
326 {
327 ia64_info->min_short_sec = sec;
328 ia64_info->min_short_offset = offset;
329 }
330}
331
332static bfd_boolean
333elfNN_ia64_relax_section (bfd *abfd, asection *sec,
334 struct bfd_link_info *link_info,
335 bfd_boolean *again)
336{
337 struct one_fixup
338 {
339 struct one_fixup *next;
340 asection *tsec;
341 bfd_vma toff;
342 bfd_vma trampoff;
343 };
344
345 Elf_Internal_Shdr *symtab_hdr;
346 Elf_Internal_Rela *internal_relocs;
347 Elf_Internal_Rela *irel, *irelend;
348 bfd_byte *contents;
349 Elf_Internal_Sym *isymbuf = NULL;
350 struct elfNN_ia64_link_hash_table *ia64_info;
351 struct one_fixup *fixups = NULL;
352 bfd_boolean changed_contents = FALSE;
353 bfd_boolean changed_relocs = FALSE;
354 bfd_boolean changed_got = FALSE;
355 bfd_boolean skip_relax_pass_0 = TRUE;
356 bfd_boolean skip_relax_pass_1 = TRUE;
357 bfd_vma gp = 0;
358
359 /* Assume we're not going to change any sizes, and we'll only need
360 one pass. */
361 *again = FALSE;
362
0e1862bb 363 if (bfd_link_relocatable (link_info))
cbe79dfe
TG		 364 (*link_info->callbacks->einfo)
365 (_("%P%F: --relax and -r may not be used together\n"));
366
367 /* Don't even try to relax for non-ELF outputs. */
368 if (!is_elf_hash_table (link_info->hash))
369 return FALSE;
370
371 /* Nothing to do if there are no relocations or there is no need for
372 the current pass. */
373 if ((sec->flags & SEC_RELOC) == 0
374 || sec->reloc_count == 0
375 || (link_info->relax_pass == 0 && sec->skip_relax_pass_0)
376 || (link_info->relax_pass == 1 && sec->skip_relax_pass_1))
377 return TRUE;
378
379 ia64_info = elfNN_ia64_hash_table (link_info);
380 if (ia64_info == NULL)
381 return FALSE;
382
383 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
384
385 /* Load the relocations for this section. */
386 internal_relocs = (_bfd_elf_link_read_relocs
387 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
388 link_info->keep_memory));
389 if (internal_relocs == NULL)
390 return FALSE;
391
392 irelend = internal_relocs + sec->reloc_count;
393
394 /* Get the section contents. */
395 if (elf_section_data (sec)->this_hdr.contents != NULL)
396 contents = elf_section_data (sec)->this_hdr.contents;
397 else
398 {
399 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
400 goto error_return;
401 }
402
403 for (irel = internal_relocs; irel < irelend; irel++)
404 {
405 unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
406 bfd_vma symaddr, reladdr, trampoff, toff, roff;
407 asection *tsec;
408 struct one_fixup *f;
409 bfd_size_type amt;
410 bfd_boolean is_branch;
411 struct elfNN_ia64_dyn_sym_info *dyn_i;
412 char symtype;
413
414 switch (r_type)
415 {
416 case R_IA64_PCREL21B:
417 case R_IA64_PCREL21BI:
418 case R_IA64_PCREL21M:
419 case R_IA64_PCREL21F:
420 /* In pass 1, all br relaxations are done. We can skip it. */
421 if (link_info->relax_pass == 1)
422 continue;
423 skip_relax_pass_0 = FALSE;
424 is_branch = TRUE;
425 break;
426
427 case R_IA64_PCREL60B:
428 /* We can't optimize brl to br in pass 0 since br relaxations
429 will increase the code size. Defer it to pass 1. */
430 if (link_info->relax_pass == 0)
431 {
432 skip_relax_pass_1 = FALSE;
433 continue;
434 }
435 is_branch = TRUE;
436 break;
437
438 case R_IA64_GPREL22:
439 /* Update max_short_sec/min_short_sec. */
440
441 case R_IA64_LTOFF22X:
442 case R_IA64_LDXMOV:
443 /* We can't relax ldx/mov in pass 0 since br relaxations will
444 increase the code size. Defer it to pass 1. */
445 if (link_info->relax_pass == 0)
446 {
447 skip_relax_pass_1 = FALSE;
448 continue;
449 }
450 is_branch = FALSE;
451 break;
452
453 default:
454 continue;
455 }
456
457 /* Get the value of the symbol referred to by the reloc. */
458 if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
459 {
460 /* A local symbol. */
461 Elf_Internal_Sym *isym;
462
463 /* Read this BFD's local symbols. */
464 if (isymbuf == NULL)
465 {
466 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
467 if (isymbuf == NULL)
468 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
469 symtab_hdr->sh_info, 0,
470 NULL, NULL, NULL);
471 if (isymbuf == 0)
472 goto error_return;
473 }
474
475 isym = isymbuf + ELFNN_R_SYM (irel->r_info);
476 if (isym->st_shndx == SHN_UNDEF)
477 continue; /* We can't do anything with undefined symbols. */
478 else if (isym->st_shndx == SHN_ABS)
479 tsec = bfd_abs_section_ptr;
480 else if (isym->st_shndx == SHN_COMMON)
481 tsec = bfd_com_section_ptr;
482 else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON)
483 tsec = bfd_com_section_ptr;
484 else
485 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
486
487 toff = isym->st_value;
488 dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
489 symtype = ELF_ST_TYPE (isym->st_info);
490 }
491 else
492 {
493 unsigned long indx;
494 struct elf_link_hash_entry *h;
495
496 indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
497 h = elf_sym_hashes (abfd)[indx];
498 BFD_ASSERT (h != NULL);
499
500 while (h->root.type == bfd_link_hash_indirect
501 || h->root.type == bfd_link_hash_warning)
502 h = (struct elf_link_hash_entry *) h->root.u.i.link;
503
504 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE);
505
506 /* For branches to dynamic symbols, we're interested instead
507 in a branch to the PLT entry. */
508 if (is_branch && dyn_i && dyn_i->want_plt2)
509 {
510 /* Internal branches shouldn't be sent to the PLT.
511 Leave this for now and we'll give an error later. */
512 if (r_type != R_IA64_PCREL21B)
513 continue;
514
515 tsec = ia64_info->root.splt;
516 toff = dyn_i->plt2_offset;
517 BFD_ASSERT (irel->r_addend == 0);
518 }
519
520 /* Can't do anything else with dynamic symbols. */
521 else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
522 continue;
523
524 else
525 {
526 /* We can't do anything with undefined symbols. */
527 if (h->root.type == bfd_link_hash_undefined
528 || h->root.type == bfd_link_hash_undefweak)
529 continue;
530
531 tsec = h->root.u.def.section;
532 toff = h->root.u.def.value;
533 }
534
535 symtype = h->type;
536 }
537
dbaa2011 538 if (tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
cbe79dfe
TG		 539 {
540 /* At this stage in linking, no SEC_MERGE symbol has been
541 adjusted, so all references to such symbols need to be
542 passed through _bfd_merged_section_offset. (Later, in
543 relocate_section, all SEC_MERGE symbols *except* for
544 section symbols have been adjusted.)
545
546 gas may reduce relocations against symbols in SEC_MERGE
547 sections to a relocation against the section symbol when
548 the original addend was zero. When the reloc is against
549 a section symbol we should include the addend in the
550 offset passed to _bfd_merged_section_offset, since the
551 location of interest is the original symbol. On the
552 other hand, an access to "sym+addend" where "sym" is not
553 a section symbol should not include the addend; Such an
554 access is presumed to be an offset from "sym"; The
555 location of interest is just "sym". */
556 if (symtype == STT_SECTION)
557 toff += irel->r_addend;
558
559 toff = _bfd_merged_section_offset (abfd, &tsec,
560 elf_section_data (tsec)->sec_info,
561 toff);
562
563 if (symtype != STT_SECTION)
564 toff += irel->r_addend;
565 }
566 else
567 toff += irel->r_addend;
568
569 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
570
571 roff = irel->r_offset;
572
573 if (is_branch)
574 {
575 bfd_signed_vma offset;
576
577 reladdr = (sec->output_section->vma
578 + sec->output_offset
579 + roff) & (bfd_vma) -4;
580
581 /* The .plt section is aligned at 32byte and the .text section
582 is aligned at 64byte. The .text section is right after the
583 .plt section. After the first relaxation pass, linker may
584 increase the gap between the .plt and .text sections up
585 to 32byte. We assume linker will always insert 32byte
a8685210 586 between the .plt and .text sections after the first
cbe79dfe
TG		 587 relaxation pass. */
588 if (tsec == ia64_info->root.splt)
589 offset = -0x1000000 + 32;
590 else
591 offset = -0x1000000;
592
593 /* If the branch is in range, no need to do anything. */
d17fe7b7 594 if ((bfd_signed_vma) (symaddr - reladdr) >= offset
cbe79dfe
TG		 595 && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
596 {
597 /* If the 60-bit branch is in 21-bit range, optimize it. */
598 if (r_type == R_IA64_PCREL60B)
599 {
600 ia64_elf_relax_brl (contents, roff);
601
602 irel->r_info
603 = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
604 R_IA64_PCREL21B);
605
606 /* If the original relocation offset points to slot
607 1, change it to slot 2. */
608 if ((irel->r_offset & 3) == 1)
609 irel->r_offset += 1;
6f6372fa
JW		 610
611 changed_contents = TRUE;
612 changed_relocs = TRUE;
cbe79dfe
TG		 613 }
614
615 continue;
616 }
617 else if (r_type == R_IA64_PCREL60B)
618 continue;
619 else if (ia64_elf_relax_br (contents, roff))
620 {
621 irel->r_info
622 = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
623 R_IA64_PCREL60B);
624
625 /* Make the relocation offset point to slot 1. */
626 irel->r_offset = (irel->r_offset & ~((bfd_vma) 0x3)) + 1;
6f6372fa
JW		 627
628 changed_contents = TRUE;
629 changed_relocs = TRUE;
cbe79dfe
TG		 630 continue;
631 }
632
633 /* We can't put a trampoline in a .init/.fini section. Issue
634 an error. */
635 if (strcmp (sec->output_section->name, ".init") == 0
636 || strcmp (sec->output_section->name, ".fini") == 0)
637 {
4eca0228 638 _bfd_error_handler
695344c0 639 /* xgettext:c-format */
38f14ab8
AM		 640 (_("%pB: can't relax br at %#" PRIx64 " in section `%pA';"
641 " please use brl or indirect branch"),
2dcf00ce 642 sec->owner, (uint64_t) roff, sec);
cbe79dfe
TG		 643 bfd_set_error (bfd_error_bad_value);
644 goto error_return;
645 }
646
647 /* If the branch and target are in the same section, you've
648 got one honking big section and we can't help you unless
649 you are branching backwards. You'll get an error message
650 later. */
651 if (tsec == sec && toff > roff)
652 continue;
653
654 /* Look for an existing fixup to this address. */
655 for (f = fixups; f ; f = f->next)
656 if (f->tsec == tsec && f->toff == toff)
657 break;
658
659 if (f == NULL)
660 {
661 /* Two alternatives: If it's a branch to a PLT entry, we can
662 make a copy of the FULL_PLT entry. Otherwise, we'll have
663 to use a `brl' insn to get where we're going. */
664
665 size_t size;
666
667 if (tsec == ia64_info->root.splt)
668 size = sizeof (plt_full_entry);
669 else
670 size = oor_branch_size;
671
672 /* Resize the current section to make room for the new branch. */
673 trampoff = (sec->size + 15) & (bfd_vma) -16;
674
675 /* If trampoline is out of range, there is nothing we
676 can do. */
677 offset = trampoff - (roff & (bfd_vma) -4);
678 if (offset < -0x1000000 || offset > 0x0FFFFF0)
679 continue;
680
681 amt = trampoff + size;
682 contents = (bfd_byte *) bfd_realloc (contents, amt);
683 if (contents == NULL)
684 goto error_return;
685 sec->size = amt;
686
687 if (tsec == ia64_info->root.splt)
688 {
689 memcpy (contents + trampoff, plt_full_entry, size);
690
691 /* Hijack the old relocation for use as the PLTOFF reloc. */
692 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
693 R_IA64_PLTOFF22);
694 irel->r_offset = trampoff;
695 }
696 else
697 {
698 if (size == sizeof (oor_ip))
699 {
700 memcpy (contents + trampoff, oor_ip, size);
701 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
702 R_IA64_PCREL64I);
703 irel->r_addend -= 16;
704 irel->r_offset = trampoff + 2;
705 }
706 else
707 {
708 memcpy (contents + trampoff, oor_brl, size);
709 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
710 R_IA64_PCREL60B);
711 irel->r_offset = trampoff + 2;
712 }
713
714 }
715
716 /* Record the fixup so we don't do it again this section. */
717 f = (struct one_fixup *)
718 bfd_malloc ((bfd_size_type) sizeof (*f));
719 f->next = fixups;
720 f->tsec = tsec;
721 f->toff = toff;
722 f->trampoff = trampoff;
723 fixups = f;
724 }
725 else
726 {
727 /* If trampoline is out of range, there is nothing we
728 can do. */
729 offset = f->trampoff - (roff & (bfd_vma) -4);
730 if (offset < -0x1000000 || offset > 0x0FFFFF0)
731 continue;
732
733 /* Nop out the reloc, since we're finalizing things here. */
734 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
735 }
736
737 /* Fix up the existing branch to hit the trampoline. */
738 if (ia64_elf_install_value (contents + roff, offset, r_type)
739 != bfd_reloc_ok)
740 goto error_return;
741
742 changed_contents = TRUE;
743 changed_relocs = TRUE;
744 }
745 else
746 {
747 /* Fetch the gp. */
748 if (gp == 0)
749 {
750 bfd *obfd = sec->output_section->owner;
751 gp = _bfd_get_gp_value (obfd);
752 if (gp == 0)
753 {
754 if (!elfNN_ia64_choose_gp (obfd, link_info, FALSE))
755 goto error_return;
756 gp = _bfd_get_gp_value (obfd);
757 }
758 }
759
760 /* If the data is out of range, do nothing. */
761 if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
762 ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
763 continue;
764
765 if (r_type == R_IA64_GPREL22)
766 elfNN_ia64_update_short_info (tsec->output_section,
767 tsec->output_offset + toff,
768 ia64_info);
769 else if (r_type == R_IA64_LTOFF22X)
770 {
771 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
772 R_IA64_GPREL22);
773 changed_relocs = TRUE;
774 if (dyn_i->want_gotx)
775 {
776 dyn_i->want_gotx = 0;
777 changed_got |= !dyn_i->want_got;
778 }
779
780 elfNN_ia64_update_short_info (tsec->output_section,
781 tsec->output_offset + toff,
782 ia64_info);
783 }
784 else
785 {
786 ia64_elf_relax_ldxmov (contents, roff);
787 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
788 changed_contents = TRUE;
789 changed_relocs = TRUE;
790 }
791 }
792 }
793
794 /* ??? If we created fixups, this may push the code segment large
795 enough that the data segment moves, which will change the GP.
796 Reset the GP so that we re-calculate next round. We need to
797 do this at the _beginning_ of the next round; now will not do. */
798
799 /* Clean up and go home. */
800 while (fixups)
801 {
802 struct one_fixup *f = fixups;
803 fixups = fixups->next;
804 free (f);
805 }
806
807 if (isymbuf != NULL
808 && symtab_hdr->contents != (unsigned char *) isymbuf)
809 {
810 if (! link_info->keep_memory)
811 free (isymbuf);
812 else
813 {
814 /* Cache the symbols for elf_link_input_bfd. */
815 symtab_hdr->contents = (unsigned char *) isymbuf;
816 }
817 }
818
819 if (contents != NULL
820 && elf_section_data (sec)->this_hdr.contents != contents)
821 {
822 if (!changed_contents && !link_info->keep_memory)
823 free (contents);
824 else
825 {
826 /* Cache the section contents for elf_link_input_bfd. */
827 elf_section_data (sec)->this_hdr.contents = contents;
828 }
829 }
830
831 if (elf_section_data (sec)->relocs != internal_relocs)
832 {
833 if (!changed_relocs)
834 free (internal_relocs);
835 else
836 elf_section_data (sec)->relocs = internal_relocs;
837 }
838
839 if (changed_got)
840 {
841 struct elfNN_ia64_allocate_data data;
842 data.info = link_info;
843 data.ofs = 0;
844 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
845
846 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
847 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
848 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
849 ia64_info->root.sgot->size = data.ofs;
850
851 if (ia64_info->root.dynamic_sections_created
852 && ia64_info->root.srelgot != NULL)
853 {
854 /* Resize .rela.got. */
855 ia64_info->root.srelgot->size = 0;
0e1862bb 856 if (bfd_link_pic (link_info)
cbe79dfe
TG		 857 && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
858 ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
859 data.only_got = TRUE;
860 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries,
861 &data);
862 }
863 }
864
865 if (link_info->relax_pass == 0)
866 {
867 /* Pass 0 is only needed to relax br. */
868 sec->skip_relax_pass_0 = skip_relax_pass_0;
869 sec->skip_relax_pass_1 = skip_relax_pass_1;
870 }
871
872 *again = changed_contents || changed_relocs;
873 return TRUE;
874
875 error_return:
c9594989 876 if ((unsigned char *) isymbuf != symtab_hdr->contents)
cbe79dfe 877 free (isymbuf);
c9594989 878 if (elf_section_data (sec)->this_hdr.contents != contents)
cbe79dfe 879 free (contents);
c9594989 880 if (elf_section_data (sec)->relocs != internal_relocs)
cbe79dfe
TG		 881 free (internal_relocs);
882 return FALSE;
883}
884#undef skip_relax_pass_0
885#undef skip_relax_pass_1
886\f
887/* Return TRUE if NAME is an unwind table section name. */
888
889static inline bfd_boolean
890is_unwind_section_name (bfd *abfd, const char *name)
891{
892 if (elfNN_ia64_hpux_vec (abfd->xvec)
893 && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
894 return FALSE;
895
08dedd66
ML		 896 return ((startswith (name, ELF_STRING_ia64_unwind)
897 && ! startswith (name, ELF_STRING_ia64_unwind_info))
898 || startswith (name, ELF_STRING_ia64_unwind_once));
cbe79dfe
TG		 899}
900
901/* Handle an IA-64 specific section when reading an object file. This
902 is called when bfd_section_from_shdr finds a section with an unknown
903 type. */
904
905static bfd_boolean
906elfNN_ia64_section_from_shdr (bfd *abfd,
907 Elf_Internal_Shdr *hdr,
908 const char *name,
909 int shindex)
910{
911 /* There ought to be a place to keep ELF backend specific flags, but
912 at the moment there isn't one. We just keep track of the
913 sections by their name, instead. Fortunately, the ABI gives
914 suggested names for all the MIPS specific sections, so we will
915 probably get away with this. */
916 switch (hdr->sh_type)
917 {
918 case SHT_IA_64_UNWIND:
919 case SHT_IA_64_HP_OPT_ANOT:
920 break;
921
922 case SHT_IA_64_EXT:
923 if (strcmp (name, ELF_STRING_ia64_archext) != 0)
924 return FALSE;
925 break;
926
927 default:
928 return FALSE;
929 }
930
931 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
932 return FALSE;
933
934 return TRUE;
935}
936
937/* Convert IA-64 specific section flags to bfd internal section flags. */
938
939/* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
940 flag. */
941
942static bfd_boolean
8c803a2d 943elfNN_ia64_section_flags (const Elf_Internal_Shdr *hdr)
cbe79dfe
TG		 944{
945 if (hdr->sh_flags & SHF_IA_64_SHORT)
8c803a2d 946 hdr->bfd_section->flags |= SEC_SMALL_DATA;
cbe79dfe
TG		 947
948 return TRUE;
949}
950
951/* Set the correct type for an IA-64 ELF section. We do this by the
952 section name, which is a hack, but ought to work. */
953
954static bfd_boolean
955elfNN_ia64_fake_sections (bfd *abfd, Elf_Internal_Shdr *hdr,
956 asection *sec)
957{
958 const char *name;
959
fd361982 960 name = bfd_section_name (sec);
cbe79dfe
TG		 961
962 if (is_unwind_section_name (abfd, name))
963 {
964 /* We don't have the sections numbered at this point, so sh_info
965 is set later, in elfNN_ia64_final_write_processing. */
966 hdr->sh_type = SHT_IA_64_UNWIND;
967 hdr->sh_flags |= SHF_LINK_ORDER;
968 }
969 else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
970 hdr->sh_type = SHT_IA_64_EXT;
971 else if (strcmp (name, ".HP.opt_annot") == 0)
972 hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
973 else if (strcmp (name, ".reloc") == 0)
974 /* This is an ugly, but unfortunately necessary hack that is
975 needed when producing EFI binaries on IA-64. It tells
976 elf.c:elf_fake_sections() not to consider ".reloc" as a section
977 containing ELF relocation info. We need this hack in order to
978 be able to generate ELF binaries that can be translated into
979 EFI applications (which are essentially COFF objects). Those
980 files contain a COFF ".reloc" section inside an ELFNN object,
981 which would normally cause BFD to segfault because it would
982 attempt to interpret this section as containing relocation
983 entries for section "oc". With this hack enabled, ".reloc"
984 will be treated as a normal data section, which will avoid the
985 segfault. However, you won't be able to create an ELFNN binary
986 with a section named "oc" that needs relocations, but that's
987 the kind of ugly side-effects you get when detecting section
988 types based on their names... In practice, this limitation is
989 unlikely to bite. */
990 hdr->sh_type = SHT_PROGBITS;
991
992 if (sec->flags & SEC_SMALL_DATA)
993 hdr->sh_flags |= SHF_IA_64_SHORT;
994
995 /* Some HP linkers look for the SHF_IA_64_HP_TLS flag instead of SHF_TLS. */
996
997 if (elfNN_ia64_hpux_vec (abfd->xvec) && (sec->flags & SHF_TLS))
998 hdr->sh_flags |= SHF_IA_64_HP_TLS;
999
1000 return TRUE;
1001}
1002
1003/* The final processing done just before writing out an IA-64 ELF
1004 object file. */
1005
cc364be6
AM		 1006static bfd_boolean
1007elfNN_ia64_final_write_processing (bfd *abfd)
cbe79dfe
TG		 1008{
1009 Elf_Internal_Shdr *hdr;
1010 asection *s;
1011
1012 for (s = abfd->sections; s; s = s->next)
1013 {
1014 hdr = &elf_section_data (s)->this_hdr;
1015 switch (hdr->sh_type)
1016 {
1017 case SHT_IA_64_UNWIND:
1018 /* The IA-64 processor-specific ABI requires setting sh_link
1019 to the unwind section, whereas HP-UX requires sh_info to
1020 do so. For maximum compatibility, we'll set both for
1021 now... */
1022 hdr->sh_info = hdr->sh_link;
1023 break;
1024 }
1025 }
1026
1027 if (! elf_flags_init (abfd))
1028 {
1029 unsigned long flags = 0;
1030
1031 if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
1032 flags |= EF_IA_64_BE;
1033 if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
1034 flags |= EF_IA_64_ABI64;
1035
1036 elf_elfheader(abfd)->e_flags = flags;
1037 elf_flags_init (abfd) = TRUE;
1038 }
cc364be6 1039 return _bfd_elf_final_write_processing (abfd);
cbe79dfe
TG		 1040}
1041
1042/* Hook called by the linker routine which adds symbols from an object
1043 file. We use it to put .comm items in .sbss, and not .bss. */
1044
1045static bfd_boolean
1046elfNN_ia64_add_symbol_hook (bfd *abfd,
1047 struct bfd_link_info *info,
1048 Elf_Internal_Sym *sym,
1049 const char **namep ATTRIBUTE_UNUSED,
1050 flagword *flagsp ATTRIBUTE_UNUSED,
1051 asection **secp,
1052 bfd_vma *valp)
1053{
1054 if (sym->st_shndx == SHN_COMMON
0e1862bb 1055 && !bfd_link_relocatable (info)
cbe79dfe
TG		 1056 && sym->st_size <= elf_gp_size (abfd))
1057 {
1058 /* Common symbols less than or equal to -G nn bytes are
1059 automatically put into .sbss. */
1060
1061 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1062
1063 if (scomm == NULL)
1064 {
1065 scomm = bfd_make_section_with_flags (abfd, ".scommon",
1066 (SEC_ALLOC
1067 | SEC_IS_COMMON
10885e24 1068 | SEC_SMALL_DATA
cbe79dfe
TG		 1069 | SEC_LINKER_CREATED));
1070 if (scomm == NULL)
1071 return FALSE;
1072 }
1073
1074 *secp = scomm;
1075 *valp = sym->st_size;
1076 }
1077
1078 return TRUE;
1079}
1080
1081/* Return the number of additional phdrs we will need. */
1082
1083static int
1084elfNN_ia64_additional_program_headers (bfd *abfd,
1085 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1086{
1087 asection *s;
1088 int ret = 0;
1089
1090 /* See if we need a PT_IA_64_ARCHEXT segment. */
1091 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1092 if (s && (s->flags & SEC_LOAD))
1093 ++ret;
1094
1095 /* Count how many PT_IA_64_UNWIND segments we need. */
1096 for (s = abfd->sections; s; s = s->next)
1097 if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
1098 ++ret;
1099
1100 return ret;
1101}
1102
1103static bfd_boolean
1104elfNN_ia64_modify_segment_map (bfd *abfd,
1105 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1106{
1107 struct elf_segment_map *m, **pm;
1108 Elf_Internal_Shdr *hdr;
1109 asection *s;
1110
1111 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1112 all PT_LOAD segments. */
1113 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1114 if (s && (s->flags & SEC_LOAD))
1115 {
12bd6957 1116 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
cbe79dfe
TG		 1117 if (m->p_type == PT_IA_64_ARCHEXT)
1118 break;
1119 if (m == NULL)
1120 {
1121 m = ((struct elf_segment_map *)
1122 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1123 if (m == NULL)
1124 return FALSE;
1125
1126 m->p_type = PT_IA_64_ARCHEXT;
1127 m->count = 1;
1128 m->sections[0] = s;
1129
1130 /* We want to put it after the PHDR and INTERP segments. */
12bd6957 1131 pm = &elf_seg_map (abfd);
cbe79dfe
TG		 1132 while (*pm != NULL
1133 && ((*pm)->p_type == PT_PHDR
1134 || (*pm)->p_type == PT_INTERP))
1135 pm = &(*pm)->next;
1136
1137 m->next = *pm;
1138 *pm = m;
1139 }
1140 }
1141
1142 /* Install PT_IA_64_UNWIND segments, if needed. */
1143 for (s = abfd->sections; s; s = s->next)
1144 {
1145 hdr = &elf_section_data (s)->this_hdr;
1146 if (hdr->sh_type != SHT_IA_64_UNWIND)
1147 continue;
1148
1149 if (s && (s->flags & SEC_LOAD))
1150 {
12bd6957 1151 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
cbe79dfe
TG		 1152 if (m->p_type == PT_IA_64_UNWIND)
1153 {
1154 int i;
1155
1156 /* Look through all sections in the unwind segment
1157 for a match since there may be multiple sections
1158 to a segment. */
1159 for (i = m->count - 1; i >= 0; --i)
1160 if (m->sections[i] == s)
1161 break;
1162
1163 if (i >= 0)
1164 break;
1165 }
1166
1167 if (m == NULL)
1168 {
1169 m = ((struct elf_segment_map *)
1170 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1171 if (m == NULL)
1172 return FALSE;
1173
1174 m->p_type = PT_IA_64_UNWIND;
1175 m->count = 1;
1176 m->sections[0] = s;
1177 m->next = NULL;
1178
1179 /* We want to put it last. */
12bd6957 1180 pm = &elf_seg_map (abfd);
cbe79dfe
TG		 1181 while (*pm != NULL)
1182 pm = &(*pm)->next;
1183 *pm = m;
1184 }
1185 }
1186 }
1187
1188 return TRUE;
1189}
1190
1191/* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1192 the input sections for each output section in the segment and testing
1193 for SHF_IA_64_NORECOV on each. */
1194
1195static bfd_boolean
6d6c25c8 1196elfNN_ia64_modify_headers (bfd *abfd, struct bfd_link_info *info)
cbe79dfe
TG		 1197{
1198 struct elf_obj_tdata *tdata = elf_tdata (abfd);
1199 struct elf_segment_map *m;
1200 Elf_Internal_Phdr *p;
1201
12bd6957 1202 for (p = tdata->phdr, m = elf_seg_map (abfd); m != NULL; m = m->next, p++)
cbe79dfe
TG		 1203 if (m->p_type == PT_LOAD)
1204 {
1205 int i;
1206 for (i = m->count - 1; i >= 0; --i)
1207 {
1208 struct bfd_link_order *order = m->sections[i]->map_head.link_order;
1209
1210 while (order != NULL)
1211 {
1212 if (order->type == bfd_indirect_link_order)
1213 {
1214 asection *is = order->u.indirect.section;
1215 bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1216 if (flags & SHF_IA_64_NORECOV)
1217 {
1218 p->p_flags |= PF_IA_64_NORECOV;
1219 goto found;
1220 }
1221 }
1222 order = order->next;
1223 }
1224 }
1225 found:;
1226 }
1227
6d6c25c8 1228 return _bfd_elf_modify_headers (abfd, info);
cbe79dfe
TG		 1229}
1230
1231/* According to the Tahoe assembler spec, all labels starting with a
1232 '.' are local. */
1233
1234static bfd_boolean
1235elfNN_ia64_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
1236 const char *name)
1237{
1238 return name[0] == '.';
1239}
1240
1241/* Should we do dynamic things to this symbol? */
1242
1243static bfd_boolean
1244elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry *h,
1245 struct bfd_link_info *info, int r_type)
1246{
1247 bfd_boolean ignore_protected
1248 = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
1249 || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1250
1251 return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
1252}
1253\f
1254static struct bfd_hash_entry*
1255elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry *entry,
1256 struct bfd_hash_table *table,
1257 const char *string)
1258{
1259 struct elfNN_ia64_link_hash_entry *ret;
1260 ret = (struct elfNN_ia64_link_hash_entry *) entry;
1261
1262 /* Allocate the structure if it has not already been allocated by a
1263 subclass. */
1264 if (!ret)
1265 ret = bfd_hash_allocate (table, sizeof (*ret));
1266
1267 if (!ret)
1268 return 0;
1269
1270 /* Call the allocation method of the superclass. */
1271 ret = ((struct elfNN_ia64_link_hash_entry *)
1272 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1273 table, string));
1274
1275 ret->info = NULL;
1276 ret->count = 0;
1277 ret->sorted_count = 0;
1278 ret->size = 0;
1279 return (struct bfd_hash_entry *) ret;
1280}
1281
1282static void
1283elfNN_ia64_hash_copy_indirect (struct bfd_link_info *info,
1284 struct elf_link_hash_entry *xdir,
1285 struct elf_link_hash_entry *xind)
1286{
1287 struct elfNN_ia64_link_hash_entry *dir, *ind;
1288
1289 dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1290 ind = (struct elfNN_ia64_link_hash_entry *) xind;
1291
1292 /* Copy down any references that we may have already seen to the
1293 symbol which just became indirect. */
1294
e81830c5
AM		 1295 if (dir->root.versioned != versioned_hidden)
1296 dir->root.ref_dynamic |= ind->root.ref_dynamic;
cbe79dfe
TG		 1297 dir->root.ref_regular |= ind->root.ref_regular;
1298 dir->root.ref_regular_nonweak |= ind->root.ref_regular_nonweak;
1299 dir->root.needs_plt |= ind->root.needs_plt;
1300
1301 if (ind->root.root.type != bfd_link_hash_indirect)
1302 return;
1303
1304 /* Copy over the got and plt data. This would have been done
1305 by check_relocs. */
1306
1307 if (ind->info != NULL)
1308 {
1309 struct elfNN_ia64_dyn_sym_info *dyn_i;
1310 unsigned int count;
1311
c9594989 1312 free (dir->info);
cbe79dfe
TG		 1313
1314 dir->info = ind->info;
1315 dir->count = ind->count;
1316 dir->sorted_count = ind->sorted_count;
1317 dir->size = ind->size;
1318
1319 ind->info = NULL;
1320 ind->count = 0;
1321 ind->sorted_count = 0;
1322 ind->size = 0;
1323
1324 /* Fix up the dyn_sym_info pointers to the global symbol. */
1325 for (count = dir->count, dyn_i = dir->info;
1326 count != 0;
1327 count--, dyn_i++)
1328 dyn_i->h = &dir->root;
1329 }
1330
1331 /* Copy over the dynindx. */
1332
1333 if (ind->root.dynindx != -1)
1334 {
1335 if (dir->root.dynindx != -1)
1336 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1337 dir->root.dynstr_index);
1338 dir->root.dynindx = ind->root.dynindx;
1339 dir->root.dynstr_index = ind->root.dynstr_index;
1340 ind->root.dynindx = -1;
1341 ind->root.dynstr_index = 0;
1342 }
1343}
1344
1345static void
1346elfNN_ia64_hash_hide_symbol (struct bfd_link_info *info,
1347 struct elf_link_hash_entry *xh,
1348 bfd_boolean force_local)
1349{
1350 struct elfNN_ia64_link_hash_entry *h;
1351 struct elfNN_ia64_dyn_sym_info *dyn_i;
1352 unsigned int count;
1353
1354 h = (struct elfNN_ia64_link_hash_entry *)xh;
1355
1356 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1357
1358 for (count = h->count, dyn_i = h->info;
1359 count != 0;
1360 count--, dyn_i++)
1361 {
1362 dyn_i->want_plt2 = 0;
1363 dyn_i->want_plt = 0;
1364 }
1365}
1366
1367/* Compute a hash of a local hash entry. */
1368
1369static hashval_t
1370elfNN_ia64_local_htab_hash (const void *ptr)
1371{
1372 struct elfNN_ia64_local_hash_entry *entry
1373 = (struct elfNN_ia64_local_hash_entry *) ptr;
1374
1375 return ELF_LOCAL_SYMBOL_HASH (entry->id, entry->r_sym);
1376}
1377
1378/* Compare local hash entries. */
1379
1380static int
1381elfNN_ia64_local_htab_eq (const void *ptr1, const void *ptr2)
1382{
1383 struct elfNN_ia64_local_hash_entry *entry1
1384 = (struct elfNN_ia64_local_hash_entry *) ptr1;
1385 struct elfNN_ia64_local_hash_entry *entry2
1386 = (struct elfNN_ia64_local_hash_entry *) ptr2;
1387
1388 return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
1389}
1390
cbe79dfe
TG		 1391/* Free the global elfNN_ia64_dyn_sym_info array. */
1392
1393static bfd_boolean
1394elfNN_ia64_global_dyn_info_free (void **xentry,
2c3fc389 1395 void * unused ATTRIBUTE_UNUSED)
cbe79dfe
TG		 1396{
1397 struct elfNN_ia64_link_hash_entry *entry
1398 = (struct elfNN_ia64_link_hash_entry *) xentry;
1399
c9594989
AM		 1400 free (entry->info);
1401 entry->info = NULL;
1402 entry->count = 0;
1403 entry->sorted_count = 0;
1404 entry->size = 0;
cbe79dfe
TG		 1405
1406 return TRUE;
1407}
1408
1409/* Free the local elfNN_ia64_dyn_sym_info array. */
1410
1411static bfd_boolean
1412elfNN_ia64_local_dyn_info_free (void **slot,
2c3fc389 1413 void * unused ATTRIBUTE_UNUSED)
cbe79dfe
TG		 1414{
1415 struct elfNN_ia64_local_hash_entry *entry
1416 = (struct elfNN_ia64_local_hash_entry *) *slot;
1417
c9594989
AM		 1418 free (entry->info);
1419 entry->info = NULL;
1420 entry->count = 0;
1421 entry->sorted_count = 0;
1422 entry->size = 0;
cbe79dfe
TG		 1423
1424 return TRUE;
1425}
1426
1427/* Destroy IA-64 linker hash table. */
1428
1429static void
d495ab0d 1430elfNN_ia64_link_hash_table_free (bfd *obfd)
cbe79dfe
TG		 1431{
1432 struct elfNN_ia64_link_hash_table *ia64_info
d495ab0d 1433 = (struct elfNN_ia64_link_hash_table *) obfd->link.hash;
cbe79dfe
TG		 1434 if (ia64_info->loc_hash_table)
1435 {
1436 htab_traverse (ia64_info->loc_hash_table,
1437 elfNN_ia64_local_dyn_info_free, NULL);
1438 htab_delete (ia64_info->loc_hash_table);
1439 }
1440 if (ia64_info->loc_hash_memory)
1441 objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
1442 elf_link_hash_traverse (&ia64_info->root,
1443 elfNN_ia64_global_dyn_info_free, NULL);
d495ab0d 1444 _bfd_elf_link_hash_table_free (obfd);
cbe79dfe
TG		 1445}
1446
68faa637
AM		 1447/* Create the derived linker hash table. The IA-64 ELF port uses this
1448 derived hash table to keep information specific to the IA-64 ElF
1449 linker (without using static variables). */
1450
1451static struct bfd_link_hash_table *
1452elfNN_ia64_hash_table_create (bfd *abfd)
1453{
1454 struct elfNN_ia64_link_hash_table *ret;
1455
1456 ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
1457 if (!ret)
1458 return NULL;
1459
1460 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1461 elfNN_ia64_new_elf_hash_entry,
1462 sizeof (struct elfNN_ia64_link_hash_entry),
1463 IA64_ELF_DATA))
1464 {
1465 free (ret);
1466 return NULL;
1467 }
1468
1469 ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
1470 elfNN_ia64_local_htab_eq, NULL);
1471 ret->loc_hash_memory = objalloc_create ();
1472 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1473 {
d495ab0d 1474 elfNN_ia64_link_hash_table_free (abfd);
68faa637
AM		 1475 return NULL;
1476 }
d495ab0d 1477 ret->root.root.hash_table_free = elfNN_ia64_link_hash_table_free;
3084d7a2 1478 ret->root.dt_pltgot_required = TRUE;
68faa637
AM		 1479
1480 return &ret->root.root;
1481}
1482
cbe79dfe
TG		 1483/* Traverse both local and global hash tables. */
1484
1485struct elfNN_ia64_dyn_sym_traverse_data
1486{
2c3fc389
NC		 1487 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *);
1488 void * data;
cbe79dfe
TG		 1489};
1490
1491static bfd_boolean
1492elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry *xentry,
2c3fc389 1493 void * xdata)
cbe79dfe
TG		 1494{
1495 struct elfNN_ia64_link_hash_entry *entry
1496 = (struct elfNN_ia64_link_hash_entry *) xentry;
1497 struct elfNN_ia64_dyn_sym_traverse_data *data
1498 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1499 struct elfNN_ia64_dyn_sym_info *dyn_i;
1500 unsigned int count;
1501
cbe79dfe
TG		 1502 for (count = entry->count, dyn_i = entry->info;
1503 count != 0;
1504 count--, dyn_i++)
1505 if (! (*data->func) (dyn_i, data->data))
1506 return FALSE;
1507 return TRUE;
1508}
1509
1510static bfd_boolean
2c3fc389 1511elfNN_ia64_local_dyn_sym_thunk (void **slot, void * xdata)
cbe79dfe
TG		 1512{
1513 struct elfNN_ia64_local_hash_entry *entry
1514 = (struct elfNN_ia64_local_hash_entry *) *slot;
1515 struct elfNN_ia64_dyn_sym_traverse_data *data
1516 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1517 struct elfNN_ia64_dyn_sym_info *dyn_i;
1518 unsigned int count;
1519
1520 for (count = entry->count, dyn_i = entry->info;
1521 count != 0;
1522 count--, dyn_i++)
1523 if (! (*data->func) (dyn_i, data->data))
1524 return FALSE;
1525 return TRUE;
1526}
1527
1528static void
1529elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table *ia64_info,
2c3fc389
NC		 1530 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
1531 void * data)
cbe79dfe
TG		 1532{
1533 struct elfNN_ia64_dyn_sym_traverse_data xdata;
1534
1535 xdata.func = func;
1536 xdata.data = data;
1537
1538 elf_link_hash_traverse (&ia64_info->root,
1539 elfNN_ia64_global_dyn_sym_thunk, &xdata);
1540 htab_traverse (ia64_info->loc_hash_table,
1541 elfNN_ia64_local_dyn_sym_thunk, &xdata);
1542}
1543\f
1544static bfd_boolean
1545elfNN_ia64_create_dynamic_sections (bfd *abfd,
1546 struct bfd_link_info *info)
1547{
1548 struct elfNN_ia64_link_hash_table *ia64_info;
1549 asection *s;
1550
1551 if (! _bfd_elf_create_dynamic_sections (abfd, info))
1552 return FALSE;
1553
1554 ia64_info = elfNN_ia64_hash_table (info);
1555 if (ia64_info == NULL)
1556 return FALSE;
1557
1558 {
fd361982
AM		 1559 flagword flags = bfd_section_flags (ia64_info->root.sgot);
1560 bfd_set_section_flags (ia64_info->root.sgot, SEC_SMALL_DATA | flags);
cbe79dfe 1561 /* The .got section is always aligned at 8 bytes. */
fd361982 1562 if (!bfd_set_section_alignment (ia64_info->root.sgot, 3))
a253d456 1563 return FALSE;
cbe79dfe
TG		 1564 }
1565
1566 if (!get_pltoff (abfd, info, ia64_info))
1567 return FALSE;
1568
3d4d4302
AM		 1569 s = bfd_make_section_anyway_with_flags (abfd, ".rela.IA_64.pltoff",
1570 (SEC_ALLOC | SEC_LOAD
1571 | SEC_HAS_CONTENTS
1572 | SEC_IN_MEMORY
1573 | SEC_LINKER_CREATED
1574 | SEC_READONLY));
cbe79dfe 1575 if (s == NULL
fd361982 1576 || !bfd_set_section_alignment (s, LOG_SECTION_ALIGN))
cbe79dfe
TG		 1577 return FALSE;
1578 ia64_info->rel_pltoff_sec = s;
1579
1580 return TRUE;
1581}
1582
1583/* Find and/or create a hash entry for local symbol. */
1584static struct elfNN_ia64_local_hash_entry *
1585get_local_sym_hash (struct elfNN_ia64_link_hash_table *ia64_info,
1586 bfd *abfd, const Elf_Internal_Rela *rel,
1587 bfd_boolean create)
1588{
1589 struct elfNN_ia64_local_hash_entry e, *ret;
1590 asection *sec = abfd->sections;
1591 hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id,
1592 ELFNN_R_SYM (rel->r_info));
1593 void **slot;
1594
1595 e.id = sec->id;
1596 e.r_sym = ELFNN_R_SYM (rel->r_info);
1597 slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
1598 create ? INSERT : NO_INSERT);
1599
1600 if (!slot)
1601 return NULL;
1602
1603 if (*slot)
1604 return (struct elfNN_ia64_local_hash_entry *) *slot;
1605
1606 ret = (struct elfNN_ia64_local_hash_entry *)
1607 objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
1608 sizeof (struct elfNN_ia64_local_hash_entry));
1609 if (ret)
1610 {
1611 memset (ret, 0, sizeof (*ret));
1612 ret->id = sec->id;
1613 ret->r_sym = ELFNN_R_SYM (rel->r_info);
1614 *slot = ret;
1615 }
1616 return ret;
1617}
1618
1619/* Used to sort elfNN_ia64_dyn_sym_info array. */
1620
1621static int
1622addend_compare (const void *xp, const void *yp)
1623{
1624 const struct elfNN_ia64_dyn_sym_info *x
1625 = (const struct elfNN_ia64_dyn_sym_info *) xp;
1626 const struct elfNN_ia64_dyn_sym_info *y
1627 = (const struct elfNN_ia64_dyn_sym_info *) yp;
1628
1629 return x->addend < y->addend ? -1 : x->addend > y->addend ? 1 : 0;
1630}
1631
1632/* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
1633
1634static unsigned int
1635sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info *info,
1636 unsigned int count)
1637{
1638 bfd_vma curr, prev, got_offset;
1639 unsigned int i, kept, dupes, diff, dest, src, len;
1640
1641 qsort (info, count, sizeof (*info), addend_compare);
1642
1643 /* Find the first duplicate. */
1644 prev = info [0].addend;
1645 got_offset = info [0].got_offset;
1646 for (i = 1; i < count; i++)
1647 {
1648 curr = info [i].addend;
1649 if (curr == prev)
1650 {
1651 /* For duplicates, make sure that GOT_OFFSET is valid. */
1652 if (got_offset == (bfd_vma) -1)
1653 got_offset = info [i].got_offset;
1654 break;
1655 }
1656 got_offset = info [i].got_offset;
1657 prev = curr;
1658 }
1659
1660 /* We may move a block of elements to here. */
1661 dest = i++;
1662
1663 /* Remove duplicates. */
1664 if (i < count)
1665 {
1666 while (i < count)
1667 {
1668 /* For duplicates, make sure that the kept one has a valid
1669 got_offset. */
1670 kept = dest - 1;
1671 if (got_offset != (bfd_vma) -1)
1672 info [kept].got_offset = got_offset;
1673
1674 curr = info [i].addend;
1675 got_offset = info [i].got_offset;
1676
1677 /* Move a block of elements whose first one is different from
1678 the previous. */
1679 if (curr == prev)
1680 {
1681 for (src = i + 1; src < count; src++)
1682 {
1683 if (info [src].addend != curr)
1684 break;
1685 /* For duplicates, make sure that GOT_OFFSET is
1686 valid. */
1687 if (got_offset == (bfd_vma) -1)
1688 got_offset = info [src].got_offset;
1689 }
1690
1691 /* Make sure that the kept one has a valid got_offset. */
1692 if (got_offset != (bfd_vma) -1)
1693 info [kept].got_offset = got_offset;
1694 }
1695 else
1696 src = i;
1697
1698 if (src >= count)
1699 break;
1700
1701 /* Find the next duplicate. SRC will be kept. */
1702 prev = info [src].addend;
1703 got_offset = info [src].got_offset;
1704 for (dupes = src + 1; dupes < count; dupes ++)
1705 {
1706 curr = info [dupes].addend;
1707 if (curr == prev)
1708 {
1709 /* Make sure that got_offset is valid. */
1710 if (got_offset == (bfd_vma) -1)
1711 got_offset = info [dupes].got_offset;
1712
1713 /* For duplicates, make sure that the kept one has
1714 a valid got_offset. */
1715 if (got_offset != (bfd_vma) -1)
1716 info [dupes - 1].got_offset = got_offset;
1717 break;
1718 }
1719 got_offset = info [dupes].got_offset;
1720 prev = curr;
1721 }
1722
1723 /* How much to move. */
1724 len = dupes - src;
1725 i = dupes + 1;
1726
1727 if (len == 1 && dupes < count)
1728 {
1729 /* If we only move 1 element, we combine it with the next
1730 one. There must be at least a duplicate. Find the
1731 next different one. */
1732 for (diff = dupes + 1, src++; diff < count; diff++, src++)
1733 {
1734 if (info [diff].addend != curr)
1735 break;
1736 /* Make sure that got_offset is valid. */
1737 if (got_offset == (bfd_vma) -1)
1738 got_offset = info [diff].got_offset;
1739 }
1740
1741 /* Makre sure that the last duplicated one has an valid
1742 offset. */
1743 BFD_ASSERT (curr == prev);
1744 if (got_offset != (bfd_vma) -1)
1745 info [diff - 1].got_offset = got_offset;
1746
1747 if (diff < count)
1748 {
1749 /* Find the next duplicate. Track the current valid
1750 offset. */
1751 prev = info [diff].addend;
1752 got_offset = info [diff].got_offset;
1753 for (dupes = diff + 1; dupes < count; dupes ++)
1754 {
1755 curr = info [dupes].addend;
1756 if (curr == prev)
1757 {
1758 /* For duplicates, make sure that GOT_OFFSET
1759 is valid. */
1760 if (got_offset == (bfd_vma) -1)
1761 got_offset = info [dupes].got_offset;
1762 break;
1763 }
1764 got_offset = info [dupes].got_offset;
1765 prev = curr;
1766 diff++;
1767 }
1768
1769 len = diff - src + 1;
1770 i = diff + 1;
1771 }
1772 }
1773
1774 memmove (&info [dest], &info [src], len * sizeof (*info));
1775
1776 dest += len;
1777 }
1778
1779 count = dest;
1780 }
1781 else
1782 {
1783 /* When we get here, either there is no duplicate at all or
1784 the only duplicate is the last element. */
1785 if (dest < count)
1786 {
1787 /* If the last element is a duplicate, make sure that the
1788 kept one has a valid got_offset. We also update count. */
1789 if (got_offset != (bfd_vma) -1)
1790 info [dest - 1].got_offset = got_offset;
1791 count = dest;
1792 }
1793 }
1794
1795 return count;
1796}
1797
1798/* Find and/or create a descriptor for dynamic symbol info. This will
1799 vary based on global or local symbol, and the addend to the reloc.
1800
1801 We don't sort when inserting. Also, we sort and eliminate
1802 duplicates if there is an unsorted section. Typically, this will
1803 only happen once, because we do all insertions before lookups. We
1804 then use bsearch to do a lookup. This also allows lookups to be
1805 fast. So we have fast insertion (O(log N) due to duplicate check),
1806 fast lookup (O(log N)) and one sort (O(N log N) expected time).
1807 Previously, all lookups were O(N) because of the use of the linked
1808 list and also all insertions were O(N) because of the check for
1809 duplicates. There are some complications here because the array
1810 size grows occasionally, which may add an O(N) factor, but this
1811 should be rare. Also, we free the excess array allocation, which
1812 requires a copy which is O(N), but this only happens once. */
1813
1814static struct elfNN_ia64_dyn_sym_info *
1815get_dyn_sym_info (struct elfNN_ia64_link_hash_table *ia64_info,
1816 struct elf_link_hash_entry *h, bfd *abfd,
1817 const Elf_Internal_Rela *rel, bfd_boolean create)
1818{
1819 struct elfNN_ia64_dyn_sym_info **info_p, *info, *dyn_i, key;
1820 unsigned int *count_p, *sorted_count_p, *size_p;
1821 unsigned int count, sorted_count, size;
1822 bfd_vma addend = rel ? rel->r_addend : 0;
1823 bfd_size_type amt;
1824
1825 if (h)
1826 {
1827 struct elfNN_ia64_link_hash_entry *global_h;
1828
1829 global_h = (struct elfNN_ia64_link_hash_entry *) h;
1830 info_p = &global_h->info;
1831 count_p = &global_h->count;
1832 sorted_count_p = &global_h->sorted_count;
1833 size_p = &global_h->size;
1834 }
1835 else
1836 {
1837 struct elfNN_ia64_local_hash_entry *loc_h;
1838
1839 loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
1840 if (!loc_h)
1841 {
1842 BFD_ASSERT (!create);
1843 return NULL;
1844 }
1845
1846 info_p = &loc_h->info;
1847 count_p = &loc_h->count;
1848 sorted_count_p = &loc_h->sorted_count;
1849 size_p = &loc_h->size;
1850 }
1851
1852 count = *count_p;
1853 sorted_count = *sorted_count_p;
1854 size = *size_p;
1855 info = *info_p;
1856 if (create)
1857 {
1858 /* When we create the array, we don't check for duplicates,
07d6d2b8 1859 except in the previously sorted section if one exists, and
cbe79dfe
TG		 1860 against the last inserted entry. This allows insertions to
1861 be fast. */
1862 if (info)
1863 {
1864 if (sorted_count)
1865 {
1866 /* Try bsearch first on the sorted section. */
1867 key.addend = addend;
1868 dyn_i = bsearch (&key, info, sorted_count,
1869 sizeof (*info), addend_compare);
cbe79dfe 1870 if (dyn_i)
736c9875 1871 return dyn_i;
cbe79dfe
TG		 1872 }
1873
736c9875 1874 if (count != 0)
cbe79dfe 1875 {
736c9875
AM		 1876 /* Do a quick check for the last inserted entry. */
1877 dyn_i = info + count - 1;
1878 if (dyn_i->addend == addend)
1879 return dyn_i;
cbe79dfe
TG		 1880 }
1881 }
1882
1883 if (size == 0)
1884 {
1885 /* It is the very first element. We create the array of size
1886 1. */
1887 size = 1;
1888 amt = size * sizeof (*info);
1889 info = bfd_malloc (amt);
1890 }
1891 else if (size <= count)
1892 {
1893 /* We double the array size every time when we reach the
1894 size limit. */
1895 size += size;
1896 amt = size * sizeof (*info);
1897 info = bfd_realloc (info, amt);
1898 }
1899 else
1900 goto has_space;
1901
1902 if (info == NULL)
1903 return NULL;
1904 *size_p = size;
1905 *info_p = info;
1906
dc1e8a47 1907 has_space:
cbe79dfe
TG		 1908 /* Append the new one to the array. */
1909 dyn_i = info + count;
1910 memset (dyn_i, 0, sizeof (*dyn_i));
1911 dyn_i->got_offset = (bfd_vma) -1;
1912 dyn_i->addend = addend;
1913
1914 /* We increment count only since the new ones are unsorted and
1915 may have duplicate. */
1916 (*count_p)++;
1917 }
1918 else
1919 {
1920 /* It is a lookup without insertion. Sort array if part of the
1921 array isn't sorted. */
1922 if (count != sorted_count)
1923 {
1924 count = sort_dyn_sym_info (info, count);
1925 *count_p = count;
1926 *sorted_count_p = count;
1927 }
1928
1929 /* Free unused memory. */
1930 if (size != count)
1931 {
1932 amt = count * sizeof (*info);
736c9875
AM		 1933 info = bfd_realloc (info, amt);
1934 *size_p = count;
1935 if (info == NULL && count != 0)
1936 /* realloc should never fail since we are reducing size here,
1937 but if it does use the old array. */
1938 info = *info_p;
1939 else
1940 *info_p = info;
cbe79dfe
TG		 1941 }
1942
736c9875
AM		 1943 if (count == 0)
1944 dyn_i = NULL;
1945 else
1946 {
1947 key.addend = addend;
1948 dyn_i = bsearch (&key, info, count, sizeof (*info), addend_compare);
1949 }
cbe79dfe
TG		 1950 }
1951
1952 return dyn_i;
1953}
1954
1955static asection *
1956get_got (bfd *abfd, struct bfd_link_info *info,
1957 struct elfNN_ia64_link_hash_table *ia64_info)
1958{
1959 asection *got;
1960 bfd *dynobj;
1961
1962 got = ia64_info->root.sgot;
1963 if (!got)
1964 {
1965 flagword flags;
1966
1967 dynobj = ia64_info->root.dynobj;
1968 if (!dynobj)
1969 ia64_info->root.dynobj = dynobj = abfd;
1970 if (!_bfd_elf_create_got_section (dynobj, info))
a253d456 1971 return NULL;
cbe79dfe
TG		 1972
1973 got = ia64_info->root.sgot;
1974
1975 /* The .got section is always aligned at 8 bytes. */
fd361982 1976 if (!bfd_set_section_alignment (got, 3))
a253d456 1977 return NULL;
cbe79dfe 1978
fd361982
AM		 1979 flags = bfd_section_flags (got);
1980 if (!bfd_set_section_flags (got, SEC_SMALL_DATA | flags))
a253d456 1981 return NULL;
cbe79dfe
TG		 1982 }
1983
1984 return got;
1985}
1986
1987/* Create function descriptor section (.opd). This section is called .opd
1988 because it contains "official procedure descriptors". The "official"
1989 refers to the fact that these descriptors are used when taking the address
1990 of a procedure, thus ensuring a unique address for each procedure. */
1991
1992static asection *
1993get_fptr (bfd *abfd, struct bfd_link_info *info,
1994 struct elfNN_ia64_link_hash_table *ia64_info)
1995{
1996 asection *fptr;
1997 bfd *dynobj;
1998
1999 fptr = ia64_info->fptr_sec;
2000 if (!fptr)
2001 {
2002 dynobj = ia64_info->root.dynobj;
2003 if (!dynobj)
2004 ia64_info->root.dynobj = dynobj = abfd;
2005
3d4d4302
AM		 2006 fptr = bfd_make_section_anyway_with_flags (dynobj, ".opd",
2007 (SEC_ALLOC
2008 | SEC_LOAD
2009 | SEC_HAS_CONTENTS
2010 | SEC_IN_MEMORY
0e1862bb
L		 2011 | (bfd_link_pie (info)
2012 ? 0 : SEC_READONLY)
3d4d4302 2013 | SEC_LINKER_CREATED));
cbe79dfe 2014 if (!fptr
fd361982 2015 || !bfd_set_section_alignment (fptr, 4))
cbe79dfe
TG		 2016 {
2017 BFD_ASSERT (0);
2018 return NULL;
2019 }
2020
2021 ia64_info->fptr_sec = fptr;
2022
0e1862bb 2023 if (bfd_link_pie (info))
cbe79dfe
TG		 2024 {
2025 asection *fptr_rel;
3d4d4302
AM		 2026 fptr_rel = bfd_make_section_anyway_with_flags (dynobj, ".rela.opd",
2027 (SEC_ALLOC | SEC_LOAD
2028 | SEC_HAS_CONTENTS
2029 | SEC_IN_MEMORY
2030 | SEC_LINKER_CREATED
2031 | SEC_READONLY));
cbe79dfe 2032 if (fptr_rel == NULL
fd361982 2033 || !bfd_set_section_alignment (fptr_rel, LOG_SECTION_ALIGN))
cbe79dfe
TG		 2034 {
2035 BFD_ASSERT (0);
2036 return NULL;
2037 }
2038
2039 ia64_info->rel_fptr_sec = fptr_rel;
2040 }
2041 }
2042
2043 return fptr;
2044}
2045
2046static asection *
2047get_pltoff (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED,
2048 struct elfNN_ia64_link_hash_table *ia64_info)
2049{
2050 asection *pltoff;
2051 bfd *dynobj;
2052
2053 pltoff = ia64_info->pltoff_sec;
2054 if (!pltoff)
2055 {
2056 dynobj = ia64_info->root.dynobj;
2057 if (!dynobj)
2058 ia64_info->root.dynobj = dynobj = abfd;
2059
3d4d4302
AM		 2060 pltoff = bfd_make_section_anyway_with_flags (dynobj,
2061 ELF_STRING_ia64_pltoff,
2062 (SEC_ALLOC
2063 | SEC_LOAD
2064 | SEC_HAS_CONTENTS
2065 | SEC_IN_MEMORY
2066 | SEC_SMALL_DATA
2067 | SEC_LINKER_CREATED));
cbe79dfe 2068 if (!pltoff
fd361982 2069 || !bfd_set_section_alignment (pltoff, 4))
cbe79dfe
TG		 2070 {
2071 BFD_ASSERT (0);
2072 return NULL;
2073 }
2074
2075 ia64_info->pltoff_sec = pltoff;
2076 }
2077
2078 return pltoff;
2079}
2080
2081static asection *
2082get_reloc_section (bfd *abfd,
2083 struct elfNN_ia64_link_hash_table *ia64_info,
2084 asection *sec, bfd_boolean create)
2085{
2086 const char *srel_name;
2087 asection *srel;
2088 bfd *dynobj;
2089
2090 srel_name = (bfd_elf_string_from_elf_section
2091 (abfd, elf_elfheader(abfd)->e_shstrndx,
2092 _bfd_elf_single_rel_hdr (sec)->sh_name));
2093 if (srel_name == NULL)
2094 return NULL;
2095
2096 dynobj = ia64_info->root.dynobj;
2097 if (!dynobj)
2098 ia64_info->root.dynobj = dynobj = abfd;
2099
3d4d4302 2100 srel = bfd_get_linker_section (dynobj, srel_name);
cbe79dfe
TG		 2101 if (srel == NULL && create)
2102 {
3d4d4302
AM		 2103 srel = bfd_make_section_anyway_with_flags (dynobj, srel_name,
2104 (SEC_ALLOC | SEC_LOAD
2105 | SEC_HAS_CONTENTS
2106 | SEC_IN_MEMORY
2107 | SEC_LINKER_CREATED
2108 | SEC_READONLY));
cbe79dfe 2109 if (srel == NULL
fd361982 2110 || !bfd_set_section_alignment (srel, LOG_SECTION_ALIGN))
cbe79dfe
TG		 2111 return NULL;
2112 }
2113
2114 return srel;
2115}
2116
2117static bfd_boolean
2118count_dyn_reloc (bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
2119 asection *srel, int type, bfd_boolean reltext)
2120{
2121 struct elfNN_ia64_dyn_reloc_entry *rent;
2122
2123 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2124 if (rent->srel == srel && rent->type == type)
2125 break;
2126
2127 if (!rent)
2128 {
2129 rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2130 bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
2131 if (!rent)
2132 return FALSE;
2133
2134 rent->next = dyn_i->reloc_entries;
2135 rent->srel = srel;
2136 rent->type = type;
2137 rent->count = 0;
2138 dyn_i->reloc_entries = rent;
2139 }
23ebcd30 2140 rent->reltext = reltext;
cbe79dfe
TG		 2141 rent->count++;
2142
2143 return TRUE;
2144}
2145
2146static bfd_boolean
2147elfNN_ia64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2148 asection *sec,
2149 const Elf_Internal_Rela *relocs)
2150{
2151 struct elfNN_ia64_link_hash_table *ia64_info;
2152 const Elf_Internal_Rela *relend;
2153 Elf_Internal_Shdr *symtab_hdr;
2154 const Elf_Internal_Rela *rel;
2155 asection *got, *fptr, *srel, *pltoff;
2156 enum {
2157 NEED_GOT = 1,
2158 NEED_GOTX = 2,
2159 NEED_FPTR = 4,
2160 NEED_PLTOFF = 8,
2161 NEED_MIN_PLT = 16,
2162 NEED_FULL_PLT = 32,
2163 NEED_DYNREL = 64,
2164 NEED_LTOFF_FPTR = 128,
2165 NEED_TPREL = 256,
2166 NEED_DTPMOD = 512,
2167 NEED_DTPREL = 1024
2168 };
2169 int need_entry;
2170 struct elf_link_hash_entry *h;
2171 unsigned long r_symndx;
2172 bfd_boolean maybe_dynamic;
2173
0e1862bb 2174 if (bfd_link_relocatable (info))
cbe79dfe
TG		 2175 return TRUE;
2176
2177 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2178 ia64_info = elfNN_ia64_hash_table (info);
2179 if (ia64_info == NULL)
2180 return FALSE;
2181
2182 got = fptr = srel = pltoff = NULL;
2183
2184 relend = relocs + sec->reloc_count;
2185
2186 /* We scan relocations first to create dynamic relocation arrays. We
2187 modified get_dyn_sym_info to allow fast insertion and support fast
2188 lookup in the next loop. */
2189 for (rel = relocs; rel < relend; ++rel)
2190 {
2191 r_symndx = ELFNN_R_SYM (rel->r_info);
2192 if (r_symndx >= symtab_hdr->sh_info)
2193 {
2194 long indx = r_symndx - symtab_hdr->sh_info;
2195 h = elf_sym_hashes (abfd)[indx];
2196 while (h->root.type == bfd_link_hash_indirect
2197 || h->root.type == bfd_link_hash_warning)
2198 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2199 }
2200 else
2201 h = NULL;
2202
2203 /* We can only get preliminary data on whether a symbol is
2204 locally or externally defined, as not all of the input files
2205 have yet been processed. Do something with what we know, as
2206 this may help reduce memory usage and processing time later. */
0e1862bb 2207 maybe_dynamic = (h && ((!bfd_link_executable (info)
cbe79dfe
TG		 2208 && (!SYMBOLIC_BIND (info, h)
2209 || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2210 || !h->def_regular
2211 || h->root.type == bfd_link_hash_defweak));
2212
2213 need_entry = 0;
2214 switch (ELFNN_R_TYPE (rel->r_info))
2215 {
2216 case R_IA64_TPREL64MSB:
2217 case R_IA64_TPREL64LSB:
0e1862bb 2218 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2219 need_entry = NEED_DYNREL;
2220 break;
2221
2222 case R_IA64_LTOFF_TPREL22:
2223 need_entry = NEED_TPREL;
0e1862bb 2224 if (bfd_link_pic (info))
cbe79dfe
TG		 2225 info->flags |= DF_STATIC_TLS;
2226 break;
2227
2228 case R_IA64_DTPREL32MSB:
2229 case R_IA64_DTPREL32LSB:
2230 case R_IA64_DTPREL64MSB:
2231 case R_IA64_DTPREL64LSB:
0e1862bb 2232 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2233 need_entry = NEED_DYNREL;
2234 break;
2235
2236 case R_IA64_LTOFF_DTPREL22:
2237 need_entry = NEED_DTPREL;
2238 break;
2239
2240 case R_IA64_DTPMOD64MSB:
2241 case R_IA64_DTPMOD64LSB:
0e1862bb 2242 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2243 need_entry = NEED_DYNREL;
2244 break;
2245
2246 case R_IA64_LTOFF_DTPMOD22:
2247 need_entry = NEED_DTPMOD;
2248 break;
2249
2250 case R_IA64_LTOFF_FPTR22:
2251 case R_IA64_LTOFF_FPTR64I:
2252 case R_IA64_LTOFF_FPTR32MSB:
2253 case R_IA64_LTOFF_FPTR32LSB:
2254 case R_IA64_LTOFF_FPTR64MSB:
2255 case R_IA64_LTOFF_FPTR64LSB:
2256 need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2257 break;
2258
2259 case R_IA64_FPTR64I:
2260 case R_IA64_FPTR32MSB:
2261 case R_IA64_FPTR32LSB:
2262 case R_IA64_FPTR64MSB:
2263 case R_IA64_FPTR64LSB:
0e1862bb 2264 if (bfd_link_pic (info) || h)
cbe79dfe
TG		 2265 need_entry = NEED_FPTR | NEED_DYNREL;
2266 else
2267 need_entry = NEED_FPTR;
2268 break;
2269
2270 case R_IA64_LTOFF22:
2271 case R_IA64_LTOFF64I:
2272 need_entry = NEED_GOT;
2273 break;
2274
2275 case R_IA64_LTOFF22X:
2276 need_entry = NEED_GOTX;
2277 break;
2278
2279 case R_IA64_PLTOFF22:
2280 case R_IA64_PLTOFF64I:
2281 case R_IA64_PLTOFF64MSB:
2282 case R_IA64_PLTOFF64LSB:
2283 need_entry = NEED_PLTOFF;
2284 if (h)
2285 {
2286 if (maybe_dynamic)
2287 need_entry |= NEED_MIN_PLT;
2288 }
2289 else
2290 {
2291 (*info->callbacks->warning)
2292 (info, _("@pltoff reloc against local symbol"), 0,
2293 abfd, 0, (bfd_vma) 0);
2294 }
2295 break;
2296
2297 case R_IA64_PCREL21B:
07d6d2b8 2298 case R_IA64_PCREL60B:
cbe79dfe
TG		 2299 /* Depending on where this symbol is defined, we may or may not
2300 need a full plt entry. Only skip if we know we'll not need
2301 the entry -- static or symbolic, and the symbol definition
2302 has already been seen. */
2303 if (maybe_dynamic && rel->r_addend == 0)
2304 need_entry = NEED_FULL_PLT;
2305 break;
2306
2307 case R_IA64_IMM14:
2308 case R_IA64_IMM22:
2309 case R_IA64_IMM64:
2310 case R_IA64_DIR32MSB:
2311 case R_IA64_DIR32LSB:
2312 case R_IA64_DIR64MSB:
2313 case R_IA64_DIR64LSB:
2314 /* Shared objects will always need at least a REL relocation. */
0e1862bb 2315 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2316 need_entry = NEED_DYNREL;
2317 break;
2318
2319 case R_IA64_IPLTMSB:
2320 case R_IA64_IPLTLSB:
2321 /* Shared objects will always need at least a REL relocation. */
0e1862bb 2322 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2323 need_entry = NEED_DYNREL;
2324 break;
2325
2326 case R_IA64_PCREL22:
2327 case R_IA64_PCREL64I:
2328 case R_IA64_PCREL32MSB:
2329 case R_IA64_PCREL32LSB:
2330 case R_IA64_PCREL64MSB:
2331 case R_IA64_PCREL64LSB:
2332 if (maybe_dynamic)
2333 need_entry = NEED_DYNREL;
2334 break;
2335 }
2336
2337 if (!need_entry)
2338 continue;
2339
2340 if ((need_entry & NEED_FPTR) != 0
2341 && rel->r_addend)
2342 {
2343 (*info->callbacks->warning)
2344 (info, _("non-zero addend in @fptr reloc"), 0,
2345 abfd, 0, (bfd_vma) 0);
2346 }
2347
2348 if (get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE) == NULL)
2349 return FALSE;
2350 }
2351
2352 /* Now, we only do lookup without insertion, which is very fast
2353 with the modified get_dyn_sym_info. */
2354 for (rel = relocs; rel < relend; ++rel)
2355 {
2356 struct elfNN_ia64_dyn_sym_info *dyn_i;
2357 int dynrel_type = R_IA64_NONE;
2358
2359 r_symndx = ELFNN_R_SYM (rel->r_info);
2360 if (r_symndx >= symtab_hdr->sh_info)
2361 {
2362 /* We're dealing with a global symbol -- find its hash entry
2363 and mark it as being referenced. */
2364 long indx = r_symndx - symtab_hdr->sh_info;
2365 h = elf_sym_hashes (abfd)[indx];
2366 while (h->root.type == bfd_link_hash_indirect
2367 || h->root.type == bfd_link_hash_warning)
2368 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2369
81fbe831
AM		 2370 /* PR15323, ref flags aren't set for references in the same
2371 object. */
cbe79dfe
TG		 2372 h->ref_regular = 1;
2373 }
2374 else
2375 h = NULL;
2376
2377 /* We can only get preliminary data on whether a symbol is
2378 locally or externally defined, as not all of the input files
2379 have yet been processed. Do something with what we know, as
2380 this may help reduce memory usage and processing time later. */
0e1862bb 2381 maybe_dynamic = (h && ((!bfd_link_executable (info)
cbe79dfe
TG		 2382 && (!SYMBOLIC_BIND (info, h)
2383 || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2384 || !h->def_regular
2385 || h->root.type == bfd_link_hash_defweak));
2386
2387 need_entry = 0;
2388 switch (ELFNN_R_TYPE (rel->r_info))
2389 {
2390 case R_IA64_TPREL64MSB:
2391 case R_IA64_TPREL64LSB:
0e1862bb 2392 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2393 need_entry = NEED_DYNREL;
2394 dynrel_type = R_IA64_TPREL64LSB;
0e1862bb 2395 if (bfd_link_pic (info))
cbe79dfe
TG		 2396 info->flags |= DF_STATIC_TLS;
2397 break;
2398
2399 case R_IA64_LTOFF_TPREL22:
2400 need_entry = NEED_TPREL;
0e1862bb 2401 if (bfd_link_pic (info))
cbe79dfe
TG		 2402 info->flags |= DF_STATIC_TLS;
2403 break;
2404
2405 case R_IA64_DTPREL32MSB:
2406 case R_IA64_DTPREL32LSB:
2407 case R_IA64_DTPREL64MSB:
2408 case R_IA64_DTPREL64LSB:
0e1862bb 2409 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2410 need_entry = NEED_DYNREL;
2411 dynrel_type = R_IA64_DTPRELNNLSB;
2412 break;
2413
2414 case R_IA64_LTOFF_DTPREL22:
2415 need_entry = NEED_DTPREL;
2416 break;
2417
2418 case R_IA64_DTPMOD64MSB:
2419 case R_IA64_DTPMOD64LSB:
0e1862bb 2420 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2421 need_entry = NEED_DYNREL;
2422 dynrel_type = R_IA64_DTPMOD64LSB;
2423 break;
2424
2425 case R_IA64_LTOFF_DTPMOD22:
2426 need_entry = NEED_DTPMOD;
2427 break;
2428
2429 case R_IA64_LTOFF_FPTR22:
2430 case R_IA64_LTOFF_FPTR64I:
2431 case R_IA64_LTOFF_FPTR32MSB:
2432 case R_IA64_LTOFF_FPTR32LSB:
2433 case R_IA64_LTOFF_FPTR64MSB:
2434 case R_IA64_LTOFF_FPTR64LSB:
2435 need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2436 break;
2437
2438 case R_IA64_FPTR64I:
2439 case R_IA64_FPTR32MSB:
2440 case R_IA64_FPTR32LSB:
2441 case R_IA64_FPTR64MSB:
2442 case R_IA64_FPTR64LSB:
0e1862bb 2443 if (bfd_link_pic (info) || h)
cbe79dfe
TG		 2444 need_entry = NEED_FPTR | NEED_DYNREL;
2445 else
2446 need_entry = NEED_FPTR;
2447 dynrel_type = R_IA64_FPTRNNLSB;
2448 break;
2449
2450 case R_IA64_LTOFF22:
2451 case R_IA64_LTOFF64I:
2452 need_entry = NEED_GOT;
2453 break;
2454
2455 case R_IA64_LTOFF22X:
2456 need_entry = NEED_GOTX;
2457 break;
2458
2459 case R_IA64_PLTOFF22:
2460 case R_IA64_PLTOFF64I:
2461 case R_IA64_PLTOFF64MSB:
2462 case R_IA64_PLTOFF64LSB:
2463 need_entry = NEED_PLTOFF;
2464 if (h)
2465 {
2466 if (maybe_dynamic)
2467 need_entry |= NEED_MIN_PLT;
2468 }
2469 break;
2470
2471 case R_IA64_PCREL21B:
07d6d2b8 2472 case R_IA64_PCREL60B:
cbe79dfe
TG		 2473 /* Depending on where this symbol is defined, we may or may not
2474 need a full plt entry. Only skip if we know we'll not need
2475 the entry -- static or symbolic, and the symbol definition
2476 has already been seen. */
2477 if (maybe_dynamic && rel->r_addend == 0)
2478 need_entry = NEED_FULL_PLT;
2479 break;
2480
2481 case R_IA64_IMM14:
2482 case R_IA64_IMM22:
2483 case R_IA64_IMM64:
2484 case R_IA64_DIR32MSB:
2485 case R_IA64_DIR32LSB:
2486 case R_IA64_DIR64MSB:
2487 case R_IA64_DIR64LSB:
2488 /* Shared objects will always need at least a REL relocation. */
0e1862bb 2489 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2490 need_entry = NEED_DYNREL;
2491 dynrel_type = R_IA64_DIRNNLSB;
2492 break;
2493
2494 case R_IA64_IPLTMSB:
2495 case R_IA64_IPLTLSB:
2496 /* Shared objects will always need at least a REL relocation. */
0e1862bb 2497 if (bfd_link_pic (info) || maybe_dynamic)
cbe79dfe
TG		 2498 need_entry = NEED_DYNREL;
2499 dynrel_type = R_IA64_IPLTLSB;
2500 break;
2501
2502 case R_IA64_PCREL22:
2503 case R_IA64_PCREL64I:
2504 case R_IA64_PCREL32MSB:
2505 case R_IA64_PCREL32LSB:
2506 case R_IA64_PCREL64MSB:
2507 case R_IA64_PCREL64LSB:
2508 if (maybe_dynamic)
2509 need_entry = NEED_DYNREL;
2510 dynrel_type = R_IA64_PCRELNNLSB;
2511 break;
2512 }
2513
2514 if (!need_entry)
2515 continue;
2516
2517 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, FALSE);
2518
2519 /* Record whether or not this is a local symbol. */
2520 dyn_i->h = h;
2521
2522 /* Create what's needed. */
2523 if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL
2524 | NEED_DTPMOD | NEED_DTPREL))
2525 {
2526 if (!got)
2527 {
2528 got = get_got (abfd, info, ia64_info);
2529 if (!got)
2530 return FALSE;
2531 }
2532 if (need_entry & NEED_GOT)
2533 dyn_i->want_got = 1;
2534 if (need_entry & NEED_GOTX)
2535 dyn_i->want_gotx = 1;
2536 if (need_entry & NEED_TPREL)
2537 dyn_i->want_tprel = 1;
2538 if (need_entry & NEED_DTPMOD)
2539 dyn_i->want_dtpmod = 1;
2540 if (need_entry & NEED_DTPREL)
2541 dyn_i->want_dtprel = 1;
2542 }
2543 if (need_entry & NEED_FPTR)
2544 {
2545 if (!fptr)
2546 {
2547 fptr = get_fptr (abfd, info, ia64_info);
2548 if (!fptr)
2549 return FALSE;
2550 }
2551
2552 /* FPTRs for shared libraries are allocated by the dynamic
2553 linker. Make sure this local symbol will appear in the
2554 dynamic symbol table. */
0e1862bb 2555 if (!h && bfd_link_pic (info))
cbe79dfe
TG		 2556 {
2557 if (! (bfd_elf_link_record_local_dynamic_symbol
2558 (info, abfd, (long) r_symndx)))
2559 return FALSE;
2560 }
2561
2562 dyn_i->want_fptr = 1;
2563 }
2564 if (need_entry & NEED_LTOFF_FPTR)
2565 dyn_i->want_ltoff_fptr = 1;
2566 if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
2567 {
07d6d2b8 2568 if (!ia64_info->root.dynobj)
cbe79dfe
TG		 2569 ia64_info->root.dynobj = abfd;
2570 h->needs_plt = 1;
2571 dyn_i->want_plt = 1;
2572 }
2573 if (need_entry & NEED_FULL_PLT)
2574 dyn_i->want_plt2 = 1;
2575 if (need_entry & NEED_PLTOFF)
2576 {
2577 /* This is needed here, in case @pltoff is used in a non-shared
2578 link. */
2579 if (!pltoff)
2580 {
2581 pltoff = get_pltoff (abfd, info, ia64_info);
2582 if (!pltoff)
2583 return FALSE;
2584 }
2585
2586 dyn_i->want_pltoff = 1;
2587 }
2588 if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
2589 {
2590 if (!srel)
2591 {
2592 srel = get_reloc_section (abfd, ia64_info, sec, TRUE);
2593 if (!srel)
2594 return FALSE;
2595 }
2596 if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type,
2597 (sec->flags & SEC_READONLY) != 0))
2598 return FALSE;
2599 }
2600 }
2601
2602 return TRUE;
2603}
2604
2605/* For cleanliness, and potentially faster dynamic loading, allocate
2606 external GOT entries first. */
2607
2608static bfd_boolean
2609allocate_global_data_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2610 void * data)
2611{
2612 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2613
2614 if ((dyn_i->want_got || dyn_i->want_gotx)
2615 && ! dyn_i->want_fptr
2616 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2617 {
2618 dyn_i->got_offset = x->ofs;
2619 x->ofs += 8;
2620 }
2621 if (dyn_i->want_tprel)
2622 {
2623 dyn_i->tprel_offset = x->ofs;
2624 x->ofs += 8;
2625 }
2626 if (dyn_i->want_dtpmod)
2627 {
2628 if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2629 {
2630 dyn_i->dtpmod_offset = x->ofs;
2631 x->ofs += 8;
2632 }
2633 else
2634 {
2635 struct elfNN_ia64_link_hash_table *ia64_info;
2636
2637 ia64_info = elfNN_ia64_hash_table (x->info);
2638 if (ia64_info == NULL)
2639 return FALSE;
2640
2641 if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
2642 {
2643 ia64_info->self_dtpmod_offset = x->ofs;
2644 x->ofs += 8;
2645 }
2646 dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
2647 }
2648 }
2649 if (dyn_i->want_dtprel)
2650 {
2651 dyn_i->dtprel_offset = x->ofs;
2652 x->ofs += 8;
2653 }
2654 return TRUE;
2655}
2656
2657/* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2658
2659static bfd_boolean
2660allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2661 void * data)
2662{
2663 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2664
2665 if (dyn_i->want_got
2666 && dyn_i->want_fptr
2667 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTRNNLSB))
2668 {
2669 dyn_i->got_offset = x->ofs;
2670 x->ofs += 8;
2671 }
2672 return TRUE;
2673}
2674
2675/* Lastly, allocate all the GOT entries for local data. */
2676
2677static bfd_boolean
2678allocate_local_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2c3fc389 2679 void * data)
cbe79dfe
TG		 2680{
2681 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2682
2683 if ((dyn_i->want_got || dyn_i->want_gotx)
2684 && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2685 {
2686 dyn_i->got_offset = x->ofs;
2687 x->ofs += 8;
2688 }
2689 return TRUE;
2690}
2691
2692/* Search for the index of a global symbol in it's defining object file. */
2693
2694static long
2695global_sym_index (struct elf_link_hash_entry *h)
2696{
2697 struct elf_link_hash_entry **p;
2698 bfd *obj;
2699
2700 BFD_ASSERT (h->root.type == bfd_link_hash_defined
2701 || h->root.type == bfd_link_hash_defweak);
2702
2703 obj = h->root.u.def.section->owner;
2704 for (p = elf_sym_hashes (obj); *p != h; ++p)
2705 continue;
2706
2707 return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
2708}
2709
2710/* Allocate function descriptors. We can do these for every function
2711 in a main executable that is not exported. */
2712
2713static bfd_boolean
2c3fc389 2714allocate_fptr (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data)
cbe79dfe
TG		 2715{
2716 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2717
2718 if (dyn_i->want_fptr)
2719 {
2720 struct elf_link_hash_entry *h = dyn_i->h;
2721
2722 if (h)
2723 while (h->root.type == bfd_link_hash_indirect
2724 || h->root.type == bfd_link_hash_warning)
2725 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2726
0e1862bb 2727 if (!bfd_link_executable (x->info)
cbe79dfe 2728 && (!h
769c253f 2729 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
cbe79dfe
TG		 2730 || (h->root.type != bfd_link_hash_undefweak
2731 && h->root.type != bfd_link_hash_undefined)))
2732 {
2733 if (h && h->dynindx == -1)
2734 {
2735 BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
2736 || (h->root.type == bfd_link_hash_defweak));
2737
2738 if (!bfd_elf_link_record_local_dynamic_symbol
2739 (x->info, h->root.u.def.section->owner,
2740 global_sym_index (h)))
2741 return FALSE;
2742 }
2743
2744 dyn_i->want_fptr = 0;
2745 }
2746 else if (h == NULL || h->dynindx == -1)
2747 {
2748 dyn_i->fptr_offset = x->ofs;
2749 x->ofs += 16;
2750 }
2751 else
2752 dyn_i->want_fptr = 0;
2753 }
2754 return TRUE;
2755}
2756
2757/* Allocate all the minimal PLT entries. */
2758
2759static bfd_boolean
2760allocate_plt_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2c3fc389 2761 void * data)
cbe79dfe
TG		 2762{
2763 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2764
2765 if (dyn_i->want_plt)
2766 {
2767 struct elf_link_hash_entry *h = dyn_i->h;
2768
2769 if (h)
2770 while (h->root.type == bfd_link_hash_indirect
2771 || h->root.type == bfd_link_hash_warning)
2772 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2773
2774 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2775 if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
2776 {
2777 bfd_size_type offset = x->ofs;
2778 if (offset == 0)
2779 offset = PLT_HEADER_SIZE;
2780 dyn_i->plt_offset = offset;
2781 x->ofs = offset + PLT_MIN_ENTRY_SIZE;
2782
2783 dyn_i->want_pltoff = 1;
2784 }
2785 else
2786 {
2787 dyn_i->want_plt = 0;
2788 dyn_i->want_plt2 = 0;
2789 }
2790 }
2791 return TRUE;
2792}
2793
2794/* Allocate all the full PLT entries. */
2795
2796static bfd_boolean
2797allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2c3fc389 2798 void * data)
cbe79dfe
TG		 2799{
2800 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2801
2802 if (dyn_i->want_plt2)
2803 {
2804 struct elf_link_hash_entry *h = dyn_i->h;
2805 bfd_size_type ofs = x->ofs;
2806
2807 dyn_i->plt2_offset = ofs;
2808 x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
2809
2810 while (h->root.type == bfd_link_hash_indirect
2811 || h->root.type == bfd_link_hash_warning)
2812 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2813 dyn_i->h->plt.offset = ofs;
2814 }
2815 return TRUE;
2816}
2817
2818/* Allocate all the PLTOFF entries requested by relocations and
2819 plt entries. We can't share space with allocated FPTR entries,
2820 because the latter are not necessarily addressable by the GP.
2821 ??? Relaxation might be able to determine that they are. */
2822
2823static bfd_boolean
2824allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2c3fc389 2825 void * data)
cbe79dfe
TG		 2826{
2827 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2828
2829 if (dyn_i->want_pltoff)
2830 {
2831 dyn_i->pltoff_offset = x->ofs;
2832 x->ofs += 16;
2833 }
2834 return TRUE;
2835}
2836
2837/* Allocate dynamic relocations for those symbols that turned out
2838 to be dynamic. */
2839
2840static bfd_boolean
2841allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2c3fc389 2842 void * data)
cbe79dfe
TG		 2843{
2844 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2845 struct elfNN_ia64_link_hash_table *ia64_info;
2846 struct elfNN_ia64_dyn_reloc_entry *rent;
2847 bfd_boolean dynamic_symbol, shared, resolved_zero;
2848
2849 ia64_info = elfNN_ia64_hash_table (x->info);
2850 if (ia64_info == NULL)
2851 return FALSE;
2852
2853 /* Note that this can't be used in relation to FPTR relocs below. */
2854 dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
2855
0e1862bb 2856 shared = bfd_link_pic (x->info);
cbe79dfe 2857 resolved_zero = (dyn_i->h
769c253f
AM		 2858 && ELF_ST_VISIBILITY (dyn_i->h->other)
2859 && dyn_i->h->root.type == bfd_link_hash_undefweak);
cbe79dfe
TG		 2860
2861 /* Take care of the GOT and PLT relocations. */
2862
2863 if ((!resolved_zero
2864 && (dynamic_symbol || shared)
2865 && (dyn_i->want_got || dyn_i->want_gotx))
2866 || (dyn_i->want_ltoff_fptr
2867 && dyn_i->h
2868 && dyn_i->h->dynindx != -1))
2869 {
2870 if (!dyn_i->want_ltoff_fptr
0e1862bb 2871 || !bfd_link_pie (x->info)
cbe79dfe
TG		 2872 || dyn_i->h == NULL
2873 || dyn_i->h->root.type != bfd_link_hash_undefweak)
2874 ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2875 }
2876 if ((dynamic_symbol || shared) && dyn_i->want_tprel)
2877 ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2878 if (dynamic_symbol && dyn_i->want_dtpmod)
2879 ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2880 if (dynamic_symbol && dyn_i->want_dtprel)
2881 ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2882
2883 if (x->only_got)
2884 return TRUE;
2885
2886 if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
2887 {
2888 if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
2889 ia64_info->rel_fptr_sec->size += sizeof (ElfNN_External_Rela);
2890 }
2891
2892 if (!resolved_zero && dyn_i->want_pltoff)
2893 {
2894 bfd_size_type t = 0;
2895
2896 /* Dynamic symbols get one IPLT relocation. Local symbols in
2897 shared libraries get two REL relocations. Local symbols in
2898 main applications get nothing. */
2899 if (dynamic_symbol)
2900 t = sizeof (ElfNN_External_Rela);
2901 else if (shared)
2902 t = 2 * sizeof (ElfNN_External_Rela);
2903
2904 ia64_info->rel_pltoff_sec->size += t;
2905 }
2906
2907 /* Take care of the normal data relocations. */
2908
2909 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2910 {
2911 int count = rent->count;
2912
2913 switch (rent->type)
2914 {
2915 case R_IA64_FPTR32LSB:
2916 case R_IA64_FPTR64LSB:
2917 /* Allocate one iff !want_fptr and not PIE, which by this point
2918 will be true only if we're actually allocating one statically
2919 in the main executable. Position independent executables
2920 need a relative reloc. */
0e1862bb 2921 if (dyn_i->want_fptr && !bfd_link_pie (x->info))
cbe79dfe
TG		 2922 continue;
2923 break;
2924 case R_IA64_PCREL32LSB:
2925 case R_IA64_PCREL64LSB:
2926 if (!dynamic_symbol)
2927 continue;
2928 break;
2929 case R_IA64_DIR32LSB:
2930 case R_IA64_DIR64LSB:
2931 if (!dynamic_symbol && !shared)
2932 continue;
2933 break;
2934 case R_IA64_IPLTLSB:
2935 if (!dynamic_symbol && !shared)
2936 continue;
2937 /* Use two REL relocations for IPLT relocations
2938 against local symbols. */
2939 if (!dynamic_symbol)
2940 count *= 2;
2941 break;
2942 case R_IA64_DTPREL32LSB:
2943 case R_IA64_TPREL64LSB:
2944 case R_IA64_DTPREL64LSB:
2945 case R_IA64_DTPMOD64LSB:
2946 break;
2947 default:
2948 abort ();
2949 }
2950 if (rent->reltext)
447f6d86 2951 x->info->flags |= DF_TEXTREL;
cbe79dfe
TG		 2952 rent->srel->size += sizeof (ElfNN_External_Rela) * count;
2953 }
2954
2955 return TRUE;
2956}
2957
2958static bfd_boolean
2959elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2960 struct elf_link_hash_entry *h)
2961{
2962 /* ??? Undefined symbols with PLT entries should be re-defined
2963 to be the PLT entry. */
2964
2965 /* If this is a weak symbol, and there is a real definition, the
2966 processor independent code will have arranged for us to see the
2967 real definition first, and we can just use the same value. */
60d67dc8 2968 if (h->is_weakalias)
cbe79dfe 2969 {
60d67dc8
AM		 2970 struct elf_link_hash_entry *def = weakdef (h);
2971 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2972 h->root.u.def.section = def->root.u.def.section;
2973 h->root.u.def.value = def->root.u.def.value;
cbe79dfe
TG		 2974 return TRUE;
2975 }
2976
2977 /* If this is a reference to a symbol defined by a dynamic object which
2978 is not a function, we might allocate the symbol in our .dynbss section
2979 and allocate a COPY dynamic relocation.
2980
2981 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2982 of hackery. */
2983
2984 return TRUE;
2985}
2986
2987static bfd_boolean
2988elfNN_ia64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2989 struct bfd_link_info *info)
2990{
2991 struct elfNN_ia64_allocate_data data;
2992 struct elfNN_ia64_link_hash_table *ia64_info;
2993 asection *sec;
2994 bfd *dynobj;
cbe79dfe 2995
cbe79dfe
TG		 2996 ia64_info = elfNN_ia64_hash_table (info);
2997 if (ia64_info == NULL)
2998 return FALSE;
ce558b89 2999 dynobj = ia64_info->root.dynobj;
cbe79dfe
TG		 3000 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
3001 BFD_ASSERT(dynobj != NULL);
3002 data.info = info;
3003
3004 /* Set the contents of the .interp section to the interpreter. */
3005 if (ia64_info->root.dynamic_sections_created
9b8b325a 3006 && bfd_link_executable (info) && !info->nointerp)
cbe79dfe 3007 {
3d4d4302 3008 sec = bfd_get_linker_section (dynobj, ".interp");
cbe79dfe
TG		 3009 BFD_ASSERT (sec != NULL);
3010 sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3011 sec->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
3012 }
3013
3014 /* Allocate the GOT entries. */
3015
3016 if (ia64_info->root.sgot)
3017 {
3018 data.ofs = 0;
3019 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
3020 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
3021 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
3022 ia64_info->root.sgot->size = data.ofs;
3023 }
3024
3025 /* Allocate the FPTR entries. */
3026
3027 if (ia64_info->fptr_sec)
3028 {
3029 data.ofs = 0;
3030 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
3031 ia64_info->fptr_sec->size = data.ofs;
3032 }
3033
3034 /* Now that we've seen all of the input files, we can decide which
3035 symbols need plt entries. Allocate the minimal PLT entries first.
3036 We do this even though dynamic_sections_created may be FALSE, because
3037 this has the side-effect of clearing want_plt and want_plt2. */
3038
3039 data.ofs = 0;
3040 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
3041
3042 ia64_info->minplt_entries = 0;
3043 if (data.ofs)
3044 {
3045 ia64_info->minplt_entries
3046 = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
3047 }
3048
3049 /* Align the pointer for the plt2 entries. */
3050 data.ofs = (data.ofs + 31) & (bfd_vma) -32;
3051
3052 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
3053 if (data.ofs != 0 || ia64_info->root.dynamic_sections_created)
3054 {
3055 /* FIXME: we always reserve the memory for dynamic linker even if
3056 there are no PLT entries since dynamic linker may assume the
3057 reserved memory always exists. */
3058
3059 BFD_ASSERT (ia64_info->root.dynamic_sections_created);
3060
3061 ia64_info->root.splt->size = data.ofs;
3062
3063 /* If we've got a .plt, we need some extra memory for the dynamic
3064 linker. We stuff these in .got.plt. */
ce558b89 3065 ia64_info->root.sgotplt->size = 8 * PLT_RESERVED_WORDS;
cbe79dfe
TG		 3066 }
3067
3068 /* Allocate the PLTOFF entries. */
3069
3070 if (ia64_info->pltoff_sec)
3071 {
3072 data.ofs = 0;
3073 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
3074 ia64_info->pltoff_sec->size = data.ofs;
3075 }
3076
3077 if (ia64_info->root.dynamic_sections_created)
3078 {
3079 /* Allocate space for the dynamic relocations that turned out to be
3080 required. */
3081
0e1862bb 3082 if (bfd_link_pic (info) && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
cbe79dfe
TG		 3083 ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
3084 data.only_got = FALSE;
3085 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
3086 }
3087
3088 /* We have now determined the sizes of the various dynamic sections.
3089 Allocate memory for them. */
3090 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
3091 {
3092 bfd_boolean strip;
3093
3094 if (!(sec->flags & SEC_LINKER_CREATED))
3095 continue;
3096
3097 /* If we don't need this section, strip it from the output file.
3098 There were several sections primarily related to dynamic
3099 linking that must be create before the linker maps input
3100 sections to output sections. The linker does that before
3101 bfd_elf_size_dynamic_sections is called, and it is that
3102 function which decides whether anything needs to go into
3103 these sections. */
3104
3105 strip = (sec->size == 0);
3106
3107 if (sec == ia64_info->root.sgot)
3108 strip = FALSE;
3109 else if (sec == ia64_info->root.srelgot)
3110 {
3111 if (strip)
3112 ia64_info->root.srelgot = NULL;
3113 else
3114 /* We use the reloc_count field as a counter if we need to
3115 copy relocs into the output file. */
3116 sec->reloc_count = 0;
3117 }
3118 else if (sec == ia64_info->fptr_sec)
3119 {
3120 if (strip)
3121 ia64_info->fptr_sec = NULL;
3122 }
3123 else if (sec == ia64_info->rel_fptr_sec)
3124 {
3125 if (strip)
3126 ia64_info->rel_fptr_sec = NULL;
3127 else
3128 /* We use the reloc_count field as a counter if we need to
3129 copy relocs into the output file. */
3130 sec->reloc_count = 0;
3131 }
3132 else if (sec == ia64_info->root.splt)
3133 {
3134 if (strip)
3135 ia64_info->root.splt = NULL;
3136 }
3137 else if (sec == ia64_info->pltoff_sec)
3138 {
3139 if (strip)
3140 ia64_info->pltoff_sec = NULL;
3141 }
3142 else if (sec == ia64_info->rel_pltoff_sec)
3143 {
3144 if (strip)
3145 ia64_info->rel_pltoff_sec = NULL;
3146 else
3147 {
3084d7a2 3148 ia64_info->root.dt_jmprel_required = TRUE;
cbe79dfe
TG		 3149 /* We use the reloc_count field as a counter if we need to
3150 copy relocs into the output file. */
3151 sec->reloc_count = 0;
3152 }
3153 }
3154 else
3155 {
3156 const char *name;
3157
3158 /* It's OK to base decisions on the section name, because none
3159 of the dynobj section names depend upon the input files. */
fd361982 3160 name = bfd_section_name (sec);
cbe79dfe
TG		 3161
3162 if (strcmp (name, ".got.plt") == 0)
3163 strip = FALSE;
08dedd66 3164 else if (startswith (name, ".rel"))
cbe79dfe
TG		 3165 {
3166 if (!strip)
3167 {
3168 /* We use the reloc_count field as a counter if we need to
3169 copy relocs into the output file. */
3170 sec->reloc_count = 0;
3171 }
3172 }
3173 else
3174 continue;
3175 }
3176
3177 if (strip)
3178 sec->flags |= SEC_EXCLUDE;
3179 else
3180 {
3181 /* Allocate memory for the section contents. */
3182 sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
3183 if (sec->contents == NULL && sec->size != 0)
3184 return FALSE;
3185 }
3186 }
3187
ce558b89 3188 if (ia64_info->root.dynamic_sections_created)
cbe79dfe
TG		 3189 {
3190 /* Add some entries to the .dynamic section. We fill in the values
3191 later (in finish_dynamic_sections) but we must add the entries now
3192 so that we get the correct size for the .dynamic section. */
3193
cbe79dfe
TG		 3194#define add_dynamic_entry(TAG, VAL) \
3195 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3196
3084d7a2 3197 if (!_bfd_elf_add_dynamic_tags (output_bfd, info, TRUE))
cbe79dfe
TG		 3198 return FALSE;
3199
3084d7a2 3200 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
cbe79dfe 3201 return FALSE;
cbe79dfe
TG		 3202 }
3203
3204 /* ??? Perhaps force __gp local. */
3205
3206 return TRUE;
3207}
3208
3209static void
3210elfNN_ia64_install_dyn_reloc (bfd *abfd, struct bfd_link_info *info,
3211 asection *sec, asection *srel,
3212 bfd_vma offset, unsigned int type,
3213 long dynindx, bfd_vma addend)
3214{
3215 Elf_Internal_Rela outrel;
3216 bfd_byte *loc;
3217
3218 BFD_ASSERT (dynindx != -1);
3219 outrel.r_info = ELFNN_R_INFO (dynindx, type);
3220 outrel.r_addend = addend;
3221 outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
3222 if (outrel.r_offset >= (bfd_vma) -2)
3223 {
3224 /* Run for the hills. We shouldn't be outputting a relocation
3225 for this. So do what everyone else does and output a no-op. */
3226 outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3227 outrel.r_addend = 0;
3228 outrel.r_offset = 0;
3229 }
3230 else
3231 outrel.r_offset += sec->output_section->vma + sec->output_offset;
3232
3233 loc = srel->contents;
3234 loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
3235 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3236 BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count <= srel->size);
3237}
3238
3239/* Store an entry for target address TARGET_ADDR in the linkage table
3240 and return the gp-relative address of the linkage table entry. */
3241
3242static bfd_vma
3243set_got_entry (bfd *abfd, struct bfd_link_info *info,
3244 struct elfNN_ia64_dyn_sym_info *dyn_i,
3245 long dynindx, bfd_vma addend, bfd_vma value,
3246 unsigned int dyn_r_type)
3247{
3248 struct elfNN_ia64_link_hash_table *ia64_info;
3249 asection *got_sec;
3250 bfd_boolean done;
3251 bfd_vma got_offset;
3252
3253 ia64_info = elfNN_ia64_hash_table (info);
3254 if (ia64_info == NULL)
3255 return 0;
3256
3257 got_sec = ia64_info->root.sgot;
3258
3259 switch (dyn_r_type)
3260 {
3261 case R_IA64_TPREL64LSB:
3262 done = dyn_i->tprel_done;
3263 dyn_i->tprel_done = TRUE;
3264 got_offset = dyn_i->tprel_offset;
3265 break;
3266 case R_IA64_DTPMOD64LSB:
3267 if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
3268 {
3269 done = dyn_i->dtpmod_done;
3270 dyn_i->dtpmod_done = TRUE;
3271 }
3272 else
3273 {
3274 done = ia64_info->self_dtpmod_done;
3275 ia64_info->self_dtpmod_done = TRUE;
3276 dynindx = 0;
3277 }
3278 got_offset = dyn_i->dtpmod_offset;
3279 break;
3280 case R_IA64_DTPREL32LSB:
3281 case R_IA64_DTPREL64LSB:
3282 done = dyn_i->dtprel_done;
3283 dyn_i->dtprel_done = TRUE;
3284 got_offset = dyn_i->dtprel_offset;
3285 break;
3286 default:
3287 done = dyn_i->got_done;
3288 dyn_i->got_done = TRUE;
3289 got_offset = dyn_i->got_offset;
3290 break;
3291 }
3292
3293 BFD_ASSERT ((got_offset & 7) == 0);
3294
3295 if (! done)
3296 {
3297 /* Store the target address in the linkage table entry. */
3298 bfd_put_64 (abfd, value, got_sec->contents + got_offset);
3299
3300 /* Install a dynamic relocation if needed. */
0e1862bb 3301 if (((bfd_link_pic (info)
cbe79dfe 3302 && (!dyn_i->h
769c253f 3303 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
cbe79dfe
TG		 3304 || dyn_i->h->root.type != bfd_link_hash_undefweak)
3305 && dyn_r_type != R_IA64_DTPREL32LSB
3306 && dyn_r_type != R_IA64_DTPREL64LSB)
07d6d2b8 3307 || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
cbe79dfe
TG		 3308 || (dynindx != -1
3309 && (dyn_r_type == R_IA64_FPTR32LSB
3310 || dyn_r_type == R_IA64_FPTR64LSB)))
3311 && (!dyn_i->want_ltoff_fptr
0e1862bb 3312 || !bfd_link_pie (info)
cbe79dfe
TG		 3313 || !dyn_i->h
3314 || dyn_i->h->root.type != bfd_link_hash_undefweak))
3315 {
3316 if (dynindx == -1
3317 && dyn_r_type != R_IA64_TPREL64LSB
3318 && dyn_r_type != R_IA64_DTPMOD64LSB
3319 && dyn_r_type != R_IA64_DTPREL32LSB
3320 && dyn_r_type != R_IA64_DTPREL64LSB)
3321 {
3322 dyn_r_type = R_IA64_RELNNLSB;
3323 dynindx = 0;
3324 addend = value;
3325 }
3326
3327 if (bfd_big_endian (abfd))
3328 {
3329 switch (dyn_r_type)
3330 {
3331 case R_IA64_REL32LSB:
3332 dyn_r_type = R_IA64_REL32MSB;
3333 break;
3334 case R_IA64_DIR32LSB:
3335 dyn_r_type = R_IA64_DIR32MSB;
3336 break;
3337 case R_IA64_FPTR32LSB:
3338 dyn_r_type = R_IA64_FPTR32MSB;
3339 break;
3340 case R_IA64_DTPREL32LSB:
3341 dyn_r_type = R_IA64_DTPREL32MSB;
3342 break;
3343 case R_IA64_REL64LSB:
3344 dyn_r_type = R_IA64_REL64MSB;
3345 break;
3346 case R_IA64_DIR64LSB:
3347 dyn_r_type = R_IA64_DIR64MSB;
3348 break;
3349 case R_IA64_FPTR64LSB:
3350 dyn_r_type = R_IA64_FPTR64MSB;
3351 break;
3352 case R_IA64_TPREL64LSB:
3353 dyn_r_type = R_IA64_TPREL64MSB;
3354 break;
3355 case R_IA64_DTPMOD64LSB:
3356 dyn_r_type = R_IA64_DTPMOD64MSB;
3357 break;
3358 case R_IA64_DTPREL64LSB:
3359 dyn_r_type = R_IA64_DTPREL64MSB;
3360 break;
3361 default:
3362 BFD_ASSERT (FALSE);
3363 break;
3364 }
3365 }
3366
3367 elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
3368 ia64_info->root.srelgot,
3369 got_offset, dyn_r_type,
3370 dynindx, addend);
3371 }
3372 }
3373
3374 /* Return the address of the linkage table entry. */
3375 value = (got_sec->output_section->vma
3376 + got_sec->output_offset
3377 + got_offset);
3378
3379 return value;
3380}
3381
3382/* Fill in a function descriptor consisting of the function's code
3383 address and its global pointer. Return the descriptor's address. */
3384
3385static bfd_vma
3386set_fptr_entry (bfd *abfd, struct bfd_link_info *info,
3387 struct elfNN_ia64_dyn_sym_info *dyn_i,
3388 bfd_vma value)
3389{
3390 struct elfNN_ia64_link_hash_table *ia64_info;
3391 asection *fptr_sec;
3392
3393 ia64_info = elfNN_ia64_hash_table (info);
3394 if (ia64_info == NULL)
3395 return 0;
3396
3397 fptr_sec = ia64_info->fptr_sec;
3398
3399 if (!dyn_i->fptr_done)
3400 {
3401 dyn_i->fptr_done = 1;
3402
3403 /* Fill in the function descriptor. */
3404 bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
3405 bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
3406 fptr_sec->contents + dyn_i->fptr_offset + 8);
3407 if (ia64_info->rel_fptr_sec)
3408 {
3409 Elf_Internal_Rela outrel;
3410 bfd_byte *loc;
3411
3412 if (bfd_little_endian (abfd))
3413 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
3414 else
3415 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
3416 outrel.r_addend = value;
3417 outrel.r_offset = (fptr_sec->output_section->vma
3418 + fptr_sec->output_offset
3419 + dyn_i->fptr_offset);
3420 loc = ia64_info->rel_fptr_sec->contents;
3421 loc += ia64_info->rel_fptr_sec->reloc_count++
3422 * sizeof (ElfNN_External_Rela);
3423 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3424 }
3425 }
3426
3427 /* Return the descriptor's address. */
3428 value = (fptr_sec->output_section->vma
3429 + fptr_sec->output_offset
3430 + dyn_i->fptr_offset);
3431
3432 return value;
3433}
3434
3435/* Fill in a PLTOFF entry consisting of the function's code address
3436 and its global pointer. Return the descriptor's address. */
3437
3438static bfd_vma
3439set_pltoff_entry (bfd *abfd, struct bfd_link_info *info,
3440 struct elfNN_ia64_dyn_sym_info *dyn_i,
3441 bfd_vma value, bfd_boolean is_plt)
3442{
3443 struct elfNN_ia64_link_hash_table *ia64_info;
3444 asection *pltoff_sec;
3445
3446 ia64_info = elfNN_ia64_hash_table (info);
3447 if (ia64_info == NULL)
3448 return 0;
3449
3450 pltoff_sec = ia64_info->pltoff_sec;
3451
3452 /* Don't do anything if this symbol uses a real PLT entry. In
3453 that case, we'll fill this in during finish_dynamic_symbol. */
3454 if ((! dyn_i->want_plt || is_plt)
3455 && !dyn_i->pltoff_done)
3456 {
3457 bfd_vma gp = _bfd_get_gp_value (abfd);
3458
3459 /* Fill in the function descriptor. */
3460 bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
3461 bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
3462
3463 /* Install dynamic relocations if needed. */
3464 if (!is_plt
0e1862bb 3465 && bfd_link_pic (info)
cbe79dfe 3466 && (!dyn_i->h
769c253f 3467 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
cbe79dfe
TG		 3468 || dyn_i->h->root.type != bfd_link_hash_undefweak))
3469 {
3470 unsigned int dyn_r_type;
3471
3472 if (bfd_big_endian (abfd))
3473 dyn_r_type = R_IA64_RELNNMSB;
3474 else
3475 dyn_r_type = R_IA64_RELNNLSB;
3476
3477 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3478 ia64_info->rel_pltoff_sec,
3479 dyn_i->pltoff_offset,
3480 dyn_r_type, 0, value);
3481 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3482 ia64_info->rel_pltoff_sec,
3483 dyn_i->pltoff_offset + ARCH_SIZE / 8,
3484 dyn_r_type, 0, gp);
3485 }
3486
3487 dyn_i->pltoff_done = 1;
3488 }
3489
3490 /* Return the descriptor's address. */
3491 value = (pltoff_sec->output_section->vma
3492 + pltoff_sec->output_offset
3493 + dyn_i->pltoff_offset);
3494
3495 return value;
3496}
3497
3498/* Return the base VMA address which should be subtracted from real addresses
3499 when resolving @tprel() relocation.
3500 Main program TLS (whose template starts at PT_TLS p_vaddr)
3501 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3502
3503static bfd_vma
3504elfNN_ia64_tprel_base (struct bfd_link_info *info)
3505{
3506 asection *tls_sec = elf_hash_table (info)->tls_sec;
3507 return tls_sec->vma - align_power ((bfd_vma) ARCH_SIZE / 4,
3508 tls_sec->alignment_power);
3509}
3510
3511/* Return the base VMA address which should be subtracted from real addresses
3512 when resolving @dtprel() relocation.
3513 This is PT_TLS segment p_vaddr. */
3514
3515static bfd_vma
3516elfNN_ia64_dtprel_base (struct bfd_link_info *info)
3517{
3518 return elf_hash_table (info)->tls_sec->vma;
3519}
3520
3521/* Called through qsort to sort the .IA_64.unwind section during a
3522 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3523 to the output bfd so we can do proper endianness frobbing. */
3524
3525static bfd *elfNN_ia64_unwind_entry_compare_bfd;
3526
3527static int
2c3fc389 3528elfNN_ia64_unwind_entry_compare (const void * a, const void * b)
cbe79dfe
TG		 3529{
3530 bfd_vma av, bv;
3531
3532 av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
3533 bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
3534
3535 return (av < bv ? -1 : av > bv ? 1 : 0);
3536}
3537
3538/* Make sure we've got ourselves a nice fat __gp value. */
3539static bfd_boolean
3540elfNN_ia64_choose_gp (bfd *abfd, struct bfd_link_info *info, bfd_boolean final)
3541{
3542 bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
3543 bfd_vma min_short_vma = min_vma, max_short_vma = 0;
3544 struct elf_link_hash_entry *gp;
3545 bfd_vma gp_val;
3546 asection *os;
3547 struct elfNN_ia64_link_hash_table *ia64_info;
3548
3549 ia64_info = elfNN_ia64_hash_table (info);
3550 if (ia64_info == NULL)
3551 return FALSE;
3552
3553 /* Find the min and max vma of all sections marked short. Also collect
3554 min and max vma of any type, for use in selecting a nice gp. */
3555 for (os = abfd->sections; os ; os = os->next)
3556 {
3557 bfd_vma lo, hi;
3558
3559 if ((os->flags & SEC_ALLOC) == 0)
3560 continue;
3561
3562 lo = os->vma;
3563 /* When this function is called from elfNN_ia64_final_link
3564 the correct value to use is os->size. When called from
3565 elfNN_ia64_relax_section we are in the middle of section
3566 sizing; some sections will already have os->size set, others
3567 will have os->size zero and os->rawsize the previous size. */
3568 hi = os->vma + (!final && os->rawsize ? os->rawsize : os->size);
3569 if (hi < lo)
3570 hi = (bfd_vma) -1;
3571
3572 if (min_vma > lo)
3573 min_vma = lo;
3574 if (max_vma < hi)
3575 max_vma = hi;
3576 if (os->flags & SEC_SMALL_DATA)
3577 {
3578 if (min_short_vma > lo)
3579 min_short_vma = lo;
3580 if (max_short_vma < hi)
3581 max_short_vma = hi;
3582 }
3583 }
3584
3585 if (ia64_info->min_short_sec)
3586 {
d17fe7b7 3587 if (min_short_vma
cbe79dfe
TG		 3588 > (ia64_info->min_short_sec->vma
3589 + ia64_info->min_short_offset))
3590 min_short_vma = (ia64_info->min_short_sec->vma
3591 + ia64_info->min_short_offset);
3592 if (max_short_vma
3593 < (ia64_info->max_short_sec->vma
3594 + ia64_info->max_short_offset))
3595 max_short_vma = (ia64_info->max_short_sec->vma
3596 + ia64_info->max_short_offset);
3597 }
3598
3599 /* See if the user wants to force a value. */
3600 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3601 FALSE, FALSE);
3602
3603 if (gp
3604 && (gp->root.type == bfd_link_hash_defined
3605 || gp->root.type == bfd_link_hash_defweak))
3606 {
3607 asection *gp_sec = gp->root.u.def.section;
3608 gp_val = (gp->root.u.def.value
3609 + gp_sec->output_section->vma
3610 + gp_sec->output_offset);
3611 }
3612 else
3613 {
3614 /* Pick a sensible value. */
3615
3616 if (ia64_info->min_short_sec)
3617 {
3618 bfd_vma short_range = max_short_vma - min_short_vma;
3619
3620 /* If min_short_sec is set, pick one in the middle bewteen
3621 min_short_vma and max_short_vma. */
3622 if (short_range >= 0x400000)
3623 goto overflow;
3624 gp_val = min_short_vma + short_range / 2;
3625 }
3626 else
3627 {
3628 asection *got_sec = ia64_info->root.sgot;
3629
3630 /* Start with just the address of the .got. */
3631 if (got_sec)
3632 gp_val = got_sec->output_section->vma;
3633 else if (max_short_vma != 0)
3634 gp_val = min_short_vma;
3635 else if (max_vma - min_vma < 0x200000)
3636 gp_val = min_vma;
3637 else
3638 gp_val = max_vma - 0x200000 + 8;
3639 }
3640
3641 /* If it is possible to address the entire image, but we
3642 don't with the choice above, adjust. */
3643 if (max_vma - min_vma < 0x400000
3644 && (max_vma - gp_val >= 0x200000
3645 || gp_val - min_vma > 0x200000))
3646 gp_val = min_vma + 0x200000;
3647 else if (max_short_vma != 0)
3648 {
3649 /* If we don't cover all the short data, adjust. */
3650 if (max_short_vma - gp_val >= 0x200000)
3651 gp_val = min_short_vma + 0x200000;
3652
3653 /* If we're addressing stuff past the end, adjust back. */
3654 if (gp_val > max_vma)
3655 gp_val = max_vma - 0x200000 + 8;
3656 }
3657 }
3658
3659 /* Validate whether all SHF_IA_64_SHORT sections are within
3660 range of the chosen GP. */
3661
3662 if (max_short_vma != 0)
3663 {
3664 if (max_short_vma - min_short_vma >= 0x400000)
3665 {
dc1e8a47 3666 overflow:
4eca0228 3667 _bfd_error_handler
695344c0 3668 /* xgettext:c-format */
2dcf00ce
AM		 3669 (_("%pB: short data segment overflowed (%#" PRIx64 " >= 0x400000)"),
3670 abfd, (uint64_t) (max_short_vma - min_short_vma));
cbe79dfe
TG		 3671 return FALSE;
3672 }
3673 else if ((gp_val > min_short_vma
3674 && gp_val - min_short_vma > 0x200000)
3675 || (gp_val < max_short_vma
3676 && max_short_vma - gp_val >= 0x200000))
3677 {
4eca0228 3678 _bfd_error_handler
871b3ab2 3679 (_("%pB: __gp does not cover short data segment"), abfd);
cbe79dfe
TG		 3680 return FALSE;
3681 }
3682 }
3683
3684 _bfd_set_gp_value (abfd, gp_val);
3685
3686 return TRUE;
3687}
3688
3689static bfd_boolean
3690elfNN_ia64_final_link (bfd *abfd, struct bfd_link_info *info)
3691{
3692 struct elfNN_ia64_link_hash_table *ia64_info;
3693 asection *unwind_output_sec;
3694
3695 ia64_info = elfNN_ia64_hash_table (info);
3696 if (ia64_info == NULL)
3697 return FALSE;
3698
3699 /* Make sure we've got ourselves a nice fat __gp value. */
0e1862bb 3700 if (!bfd_link_relocatable (info))
cbe79dfe
TG		 3701 {
3702 bfd_vma gp_val;
3703 struct elf_link_hash_entry *gp;
3704
3705 /* We assume after gp is set, section size will only decrease. We
3706 need to adjust gp for it. */
3707 _bfd_set_gp_value (abfd, 0);
3708 if (! elfNN_ia64_choose_gp (abfd, info, TRUE))
3709 return FALSE;
3710 gp_val = _bfd_get_gp_value (abfd);
3711
3712 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
07d6d2b8 3713 FALSE, FALSE);
cbe79dfe
TG		 3714 if (gp)
3715 {
3716 gp->root.type = bfd_link_hash_defined;
3717 gp->root.u.def.value = gp_val;
3718 gp->root.u.def.section = bfd_abs_section_ptr;
3719 }
3720 }
3721
3722 /* If we're producing a final executable, we need to sort the contents
3723 of the .IA_64.unwind section. Force this section to be relocated
3724 into memory rather than written immediately to the output file. */
3725 unwind_output_sec = NULL;
0e1862bb 3726 if (!bfd_link_relocatable (info))
cbe79dfe
TG		 3727 {
3728 asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
3729 if (s)
3730 {
3731 unwind_output_sec = s->output_section;
3732 unwind_output_sec->contents
3733 = bfd_malloc (unwind_output_sec->size);
3734 if (unwind_output_sec->contents == NULL)
3735 return FALSE;
3736 }
3737 }
3738
3739 /* Invoke the regular ELF backend linker to do all the work. */
3740 if (!bfd_elf_final_link (abfd, info))
3741 return FALSE;
3742
3743 if (unwind_output_sec)
3744 {
3745 elfNN_ia64_unwind_entry_compare_bfd = abfd;
3746 qsort (unwind_output_sec->contents,
3747 (size_t) (unwind_output_sec->size / 24),
3748 24,
3749 elfNN_ia64_unwind_entry_compare);
3750
3751 if (! bfd_set_section_contents (abfd, unwind_output_sec,
3752 unwind_output_sec->contents, (bfd_vma) 0,
3753 unwind_output_sec->size))
3754 return FALSE;
3755 }
3756
3757 return TRUE;
3758}
3759
0f684201 3760static int
cbe79dfe
TG		 3761elfNN_ia64_relocate_section (bfd *output_bfd,
3762 struct bfd_link_info *info,
3763 bfd *input_bfd,
3764 asection *input_section,
3765 bfd_byte *contents,
3766 Elf_Internal_Rela *relocs,
3767 Elf_Internal_Sym *local_syms,
3768 asection **local_sections)
3769{
3770 struct elfNN_ia64_link_hash_table *ia64_info;
3771 Elf_Internal_Shdr *symtab_hdr;
3772 Elf_Internal_Rela *rel;
3773 Elf_Internal_Rela *relend;
3774 asection *srel;
3775 bfd_boolean ret_val = TRUE; /* for non-fatal errors */
3776 bfd_vma gp_val;
3777
3778 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3779 ia64_info = elfNN_ia64_hash_table (info);
3780 if (ia64_info == NULL)
3781 return FALSE;
3782
3783 /* Infect various flags from the input section to the output section. */
0e1862bb 3784 if (bfd_link_relocatable (info))
cbe79dfe
TG		 3785 {
3786 bfd_vma flags;
3787
3788 flags = elf_section_data(input_section)->this_hdr.sh_flags;
3789 flags &= SHF_IA_64_NORECOV;
3790
3791 elf_section_data(input_section->output_section)
3792 ->this_hdr.sh_flags |= flags;
3793 }
3794
3795 gp_val = _bfd_get_gp_value (output_bfd);
3796 srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE);
3797
3798 rel = relocs;
3799 relend = relocs + input_section->reloc_count;
3800 for (; rel < relend; ++rel)
3801 {
3802 struct elf_link_hash_entry *h;
3803 struct elfNN_ia64_dyn_sym_info *dyn_i;
3804 bfd_reloc_status_type r;
3805 reloc_howto_type *howto;
3806 unsigned long r_symndx;
3807 Elf_Internal_Sym *sym;
3808 unsigned int r_type;
3809 bfd_vma value;
3810 asection *sym_sec;
3811 bfd_byte *hit_addr;
3812 bfd_boolean dynamic_symbol_p;
3813 bfd_boolean undef_weak_ref;
3814
3815 r_type = ELFNN_R_TYPE (rel->r_info);
3816 if (r_type > R_IA64_MAX_RELOC_CODE)
3817 {
0aa13fee
AM		 3818 /* xgettext:c-format */
3819 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
3820 input_bfd, (int) r_type);
cbe79dfe
TG		 3821 bfd_set_error (bfd_error_bad_value);
3822 ret_val = FALSE;
3823 continue;
3824 }
3825
3826 howto = ia64_elf_lookup_howto (r_type);
f3185997
NC		 3827 if (howto == NULL)
3828 {
3829 ret_val = FALSE;
3830 continue;
3831 }
4b24dd1a 3832
cbe79dfe
TG		 3833 r_symndx = ELFNN_R_SYM (rel->r_info);
3834 h = NULL;
3835 sym = NULL;
3836 sym_sec = NULL;
3837 undef_weak_ref = FALSE;
3838
3839 if (r_symndx < symtab_hdr->sh_info)
3840 {
3841 /* Reloc against local symbol. */
3842 asection *msec;
3843 sym = local_syms + r_symndx;
3844 sym_sec = local_sections[r_symndx];
3845 msec = sym_sec;
3846 value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
0e1862bb 3847 if (!bfd_link_relocatable (info)
cbe79dfe
TG		 3848 && (sym_sec->flags & SEC_MERGE) != 0
3849 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
dbaa2011 3850 && sym_sec->sec_info_type == SEC_INFO_TYPE_MERGE)
d17fe7b7 3851 {
cbe79dfe
TG		 3852 struct elfNN_ia64_local_hash_entry *loc_h;
3853
3854 loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
3855 if (loc_h && ! loc_h->sec_merge_done)
3856 {
3857 struct elfNN_ia64_dyn_sym_info *dynent;
3858 unsigned int count;
3859
3860 for (count = loc_h->count, dynent = loc_h->info;
3861 count != 0;
3862 count--, dynent++)
3863 {
3864 msec = sym_sec;
3865 dynent->addend =
3866 _bfd_merged_section_offset (output_bfd, &msec,
3867 elf_section_data (msec)->
3868 sec_info,
3869 sym->st_value
3870 + dynent->addend);
3871 dynent->addend -= sym->st_value;
3872 dynent->addend += msec->output_section->vma
3873 + msec->output_offset
3874 - sym_sec->output_section->vma
3875 - sym_sec->output_offset;
3876 }
3877
3878 /* We may have introduced duplicated entries. We need
3879 to remove them properly. */
3880 count = sort_dyn_sym_info (loc_h->info, loc_h->count);
3881 if (count != loc_h->count)
3882 {
3883 loc_h->count = count;
3884 loc_h->sorted_count = count;
3885 }
3886
3887 loc_h->sec_merge_done = 1;
3888 }
3889 }
3890 }
3891 else
3892 {
3893 bfd_boolean unresolved_reloc;
62d887d4 3894 bfd_boolean warned, ignored;
cbe79dfe
TG		 3895 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3896
3897 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3898 r_symndx, symtab_hdr, sym_hashes,
3899 h, sym_sec, value,
62d887d4 3900 unresolved_reloc, warned, ignored);
cbe79dfe
TG		 3901
3902 if (h->root.type == bfd_link_hash_undefweak)
3903 undef_weak_ref = TRUE;
0e1862bb 3904 else if (warned || (ignored && bfd_link_executable (info)))
cbe79dfe
TG		 3905 continue;
3906 }
3907
dbaa2011 3908 if (sym_sec != NULL && discarded_section (sym_sec))
cbe79dfe 3909 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3910 rel, 1, relend, howto, 0, contents);
cbe79dfe 3911
0e1862bb 3912 if (bfd_link_relocatable (info))
cbe79dfe
TG		 3913 continue;
3914
3915 hit_addr = contents + rel->r_offset;
3916 value += rel->r_addend;
3917 dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
3918
3919 switch (r_type)
3920 {
3921 case R_IA64_NONE:
3922 case R_IA64_LDXMOV:
3923 continue;
3924
3925 case R_IA64_IMM14:
3926 case R_IA64_IMM22:
3927 case R_IA64_IMM64:
3928 case R_IA64_DIR32MSB:
3929 case R_IA64_DIR32LSB:
3930 case R_IA64_DIR64MSB:
3931 case R_IA64_DIR64LSB:
3932 /* Install a dynamic relocation for this reloc. */
0e1862bb 3933 if ((dynamic_symbol_p || bfd_link_pic (info))
cbe79dfe
TG		 3934 && r_symndx != STN_UNDEF
3935 && (input_section->flags & SEC_ALLOC) != 0)
3936 {
3937 unsigned int dyn_r_type;
3938 long dynindx;
3939 bfd_vma addend;
3940
3941 BFD_ASSERT (srel != NULL);
3942
3943 switch (r_type)
3944 {
3945 case R_IA64_IMM14:
3946 case R_IA64_IMM22:
3947 case R_IA64_IMM64:
3948 /* ??? People shouldn't be doing non-pic code in
3949 shared libraries nor dynamic executables. */
4eca0228 3950 _bfd_error_handler
695344c0 3951 /* xgettext:c-format */
871b3ab2 3952 (_("%pB: non-pic code with imm relocation against dynamic symbol `%s'"),
cbe79dfe
TG		 3953 input_bfd,
3954 h ? h->root.root.string
3955 : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3956 sym_sec));
3957 ret_val = FALSE;
3958 continue;
3959
3960 default:
3961 break;
3962 }
3963
3964 /* If we don't need dynamic symbol lookup, find a
3965 matching RELATIVE relocation. */
3966 dyn_r_type = r_type;
3967 if (dynamic_symbol_p)
3968 {
3969 dynindx = h->dynindx;
3970 addend = rel->r_addend;
3971 value = 0;
3972 }
3973 else
3974 {
3975 switch (r_type)
3976 {
3977 case R_IA64_DIR32MSB:
3978 dyn_r_type = R_IA64_REL32MSB;
3979 break;
3980 case R_IA64_DIR32LSB:
3981 dyn_r_type = R_IA64_REL32LSB;
3982 break;
3983 case R_IA64_DIR64MSB:
3984 dyn_r_type = R_IA64_REL64MSB;
3985 break;
3986 case R_IA64_DIR64LSB:
3987 dyn_r_type = R_IA64_REL64LSB;
3988 break;
3989
3990 default:
3991 break;
3992 }
3993 dynindx = 0;
3994 addend = value;
3995 }
3996
3997 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
3998 srel, rel->r_offset, dyn_r_type,
3999 dynindx, addend);
4000 }
4001 /* Fall through. */
4002
4003 case R_IA64_LTV32MSB:
4004 case R_IA64_LTV32LSB:
4005 case R_IA64_LTV64MSB:
4006 case R_IA64_LTV64LSB:
4007 r = ia64_elf_install_value (hit_addr, value, r_type);
4008 break;
4009
4010 case R_IA64_GPREL22:
4011 case R_IA64_GPREL64I:
4012 case R_IA64_GPREL32MSB:
4013 case R_IA64_GPREL32LSB:
4014 case R_IA64_GPREL64MSB:
4015 case R_IA64_GPREL64LSB:
4016 if (dynamic_symbol_p)
4017 {
4eca0228 4018 _bfd_error_handler
695344c0 4019 /* xgettext:c-format */
871b3ab2 4020 (_("%pB: @gprel relocation against dynamic symbol %s"),
cbe79dfe
TG		 4021 input_bfd,
4022 h ? h->root.root.string
4023 : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4024 sym_sec));
4025 ret_val = FALSE;
4026 continue;
4027 }
4028 value -= gp_val;
4029 r = ia64_elf_install_value (hit_addr, value, r_type);
4030 break;
4031
4032 case R_IA64_LTOFF22:
4033 case R_IA64_LTOFF22X:
4034 case R_IA64_LTOFF64I:
07d6d2b8 4035 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
cbe79dfe
TG		 4036 value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
4037 rel->r_addend, value, R_IA64_DIRNNLSB);
4038 value -= gp_val;
4039 r = ia64_elf_install_value (hit_addr, value, r_type);
4040 break;
4041
4042 case R_IA64_PLTOFF22:
4043 case R_IA64_PLTOFF64I:
4044 case R_IA64_PLTOFF64MSB:
4045 case R_IA64_PLTOFF64LSB:
07d6d2b8 4046 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
cbe79dfe
TG		 4047 value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE);
4048 value -= gp_val;
4049 r = ia64_elf_install_value (hit_addr, value, r_type);
4050 break;
4051
4052 case R_IA64_FPTR64I:
4053 case R_IA64_FPTR32MSB:
4054 case R_IA64_FPTR32LSB:
4055 case R_IA64_FPTR64MSB:
4056 case R_IA64_FPTR64LSB:
07d6d2b8 4057 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
cbe79dfe
TG		 4058 if (dyn_i->want_fptr)
4059 {
4060 if (!undef_weak_ref)
4061 value = set_fptr_entry (output_bfd, info, dyn_i, value);
4062 }
0e1862bb 4063 if (!dyn_i->want_fptr || bfd_link_pie (info))
cbe79dfe
TG		 4064 {
4065 long dynindx;
4066 unsigned int dyn_r_type = r_type;
4067 bfd_vma addend = rel->r_addend;
4068
4069 /* Otherwise, we expect the dynamic linker to create
4070 the entry. */
4071
4072 if (dyn_i->want_fptr)
4073 {
4074 if (r_type == R_IA64_FPTR64I)
4075 {
4076 /* We can't represent this without a dynamic symbol.
4077 Adjust the relocation to be against an output
4078 section symbol, which are always present in the
4079 dynamic symbol table. */
4080 /* ??? People shouldn't be doing non-pic code in
4081 shared libraries. Hork. */
4eca0228 4082 _bfd_error_handler
871b3ab2 4083 (_("%pB: linking non-pic code in a position independent executable"),
cbe79dfe
TG		 4084 input_bfd);
4085 ret_val = FALSE;
4086 continue;
4087 }
4088 dynindx = 0;
4089 addend = value;
4090 dyn_r_type = r_type + R_IA64_RELNNLSB - R_IA64_FPTRNNLSB;
4091 }
4092 else if (h)
4093 {
4094 if (h->dynindx != -1)
4095 dynindx = h->dynindx;
4096 else
4097 dynindx = (_bfd_elf_link_lookup_local_dynindx
4098 (info, h->root.u.def.section->owner,
4099 global_sym_index (h)));
4100 value = 0;
4101 }
4102 else
4103 {
4104 dynindx = (_bfd_elf_link_lookup_local_dynindx
4105 (info, input_bfd, (long) r_symndx));
4106 value = 0;
4107 }
4108
4109 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4110 srel, rel->r_offset, dyn_r_type,
4111 dynindx, addend);
4112 }
4113
4114 r = ia64_elf_install_value (hit_addr, value, r_type);
4115 break;
4116
4117 case R_IA64_LTOFF_FPTR22:
4118 case R_IA64_LTOFF_FPTR64I:
4119 case R_IA64_LTOFF_FPTR32MSB:
4120 case R_IA64_LTOFF_FPTR32LSB:
4121 case R_IA64_LTOFF_FPTR64MSB:
4122 case R_IA64_LTOFF_FPTR64LSB:
4123 {
4124 long dynindx;
4125
4126 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4127 if (dyn_i->want_fptr)
4128 {
4129 BFD_ASSERT (h == NULL || h->dynindx == -1);
07d6d2b8
AM		 4130 if (!undef_weak_ref)
4131 value = set_fptr_entry (output_bfd, info, dyn_i, value);
cbe79dfe
TG		 4132 dynindx = -1;
4133 }
4134 else
4135 {
07d6d2b8 4136 /* Otherwise, we expect the dynamic linker to create
cbe79dfe 4137 the entry. */
07d6d2b8 4138 if (h)
cbe79dfe
TG		 4139 {
4140 if (h->dynindx != -1)
4141 dynindx = h->dynindx;
4142 else
4143 dynindx = (_bfd_elf_link_lookup_local_dynindx
4144 (info, h->root.u.def.section->owner,
4145 global_sym_index (h)));
4146 }
4147 else
4148 dynindx = (_bfd_elf_link_lookup_local_dynindx
4149 (info, input_bfd, (long) r_symndx));
4150 value = 0;
4151 }
4152
4153 value = set_got_entry (output_bfd, info, dyn_i, dynindx,
4154 rel->r_addend, value, R_IA64_FPTRNNLSB);
4155 value -= gp_val;
4156 r = ia64_elf_install_value (hit_addr, value, r_type);
4157 }
4158 break;
4159
4160 case R_IA64_PCREL32MSB:
4161 case R_IA64_PCREL32LSB:
4162 case R_IA64_PCREL64MSB:
4163 case R_IA64_PCREL64LSB:
4164 /* Install a dynamic relocation for this reloc. */
4165 if (dynamic_symbol_p && r_symndx != STN_UNDEF)
4166 {
4167 BFD_ASSERT (srel != NULL);
4168
4169 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4170 srel, rel->r_offset, r_type,
4171 h->dynindx, rel->r_addend);
4172 }
4173 goto finish_pcrel;
4174
4175 case R_IA64_PCREL21B:
4176 case R_IA64_PCREL60B:
4177 /* We should have created a PLT entry for any dynamic symbol. */
4178 dyn_i = NULL;
4179 if (h)
4180 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4181
4182 if (dyn_i && dyn_i->want_plt2)
4183 {
4184 /* Should have caught this earlier. */
4185 BFD_ASSERT (rel->r_addend == 0);
4186
4187 value = (ia64_info->root.splt->output_section->vma
4188 + ia64_info->root.splt->output_offset
4189 + dyn_i->plt2_offset);
4190 }
4191 else
4192 {
4193 /* Since there's no PLT entry, Validate that this is
4194 locally defined. */
4195 BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
4196
4197 /* If the symbol is undef_weak, we shouldn't be trying
4198 to call it. There's every chance that we'd wind up
4199 with an out-of-range fixup here. Don't bother setting
4200 any value at all. */
4201 if (undef_weak_ref)
4202 continue;
4203 }
4204 goto finish_pcrel;
4205
4206 case R_IA64_PCREL21BI:
4207 case R_IA64_PCREL21F:
4208 case R_IA64_PCREL21M:
4209 case R_IA64_PCREL22:
4210 case R_IA64_PCREL64I:
4211 /* The PCREL21BI reloc is specifically not intended for use with
4212 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4213 fixup code, and thus probably ought not be dynamic. The
4214 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4215 if (dynamic_symbol_p)
4216 {
4217 const char *msg;
4218
4219 if (r_type == R_IA64_PCREL21BI)
695344c0 4220 /* xgettext:c-format */
871b3ab2 4221 msg = _("%pB: @internal branch to dynamic symbol %s");
cbe79dfe 4222 else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
695344c0 4223 /* xgettext:c-format */
871b3ab2 4224 msg = _("%pB: speculation fixup to dynamic symbol %s");
cbe79dfe 4225 else
695344c0 4226 /* xgettext:c-format */
871b3ab2 4227 msg = _("%pB: @pcrel relocation against dynamic symbol %s");
4eca0228
AM		 4228 _bfd_error_handler (msg, input_bfd,
4229 h ? h->root.root.string
4230 : bfd_elf_sym_name (input_bfd,
4231 symtab_hdr,
4232 sym,
4233 sym_sec));
cbe79dfe
TG		 4234 ret_val = FALSE;
4235 continue;
4236 }
4237 goto finish_pcrel;
4238
4239 finish_pcrel:
4240 /* Make pc-relative. */
4241 value -= (input_section->output_section->vma
4242 + input_section->output_offset
4243 + rel->r_offset) & ~ (bfd_vma) 0x3;
4244 r = ia64_elf_install_value (hit_addr, value, r_type);
4245 break;
4246
4247 case R_IA64_SEGREL32MSB:
4248 case R_IA64_SEGREL32LSB:
4249 case R_IA64_SEGREL64MSB:
4250 case R_IA64_SEGREL64LSB:
4251 {
4252 /* Find the segment that contains the output_section. */
4253 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section
4254 (output_bfd, input_section->output_section);
4255
4256 if (p == NULL)
4257 {
4258 r = bfd_reloc_notsupported;
4259 }
4260 else
4261 {
4262 /* The VMA of the segment is the vaddr of the associated
4263 program header. */
4264 if (value > p->p_vaddr)
4265 value -= p->p_vaddr;
4266 else
4267 value = 0;
4268 r = ia64_elf_install_value (hit_addr, value, r_type);
4269 }
4270 break;
4271 }
4272
4273 case R_IA64_SECREL32MSB:
4274 case R_IA64_SECREL32LSB:
4275 case R_IA64_SECREL64MSB:
4276 case R_IA64_SECREL64LSB:
4277 /* Make output-section relative to section where the symbol
4278 is defined. PR 475 */
4279 if (sym_sec)
4280 value -= sym_sec->output_section->vma;
4281 r = ia64_elf_install_value (hit_addr, value, r_type);
4282 break;
4283
4284 case R_IA64_IPLTMSB:
4285 case R_IA64_IPLTLSB:
4286 /* Install a dynamic relocation for this reloc. */
0e1862bb 4287 if ((dynamic_symbol_p || bfd_link_pic (info))
cbe79dfe
TG		 4288 && (input_section->flags & SEC_ALLOC) != 0)
4289 {
4290 BFD_ASSERT (srel != NULL);
4291
4292 /* If we don't need dynamic symbol lookup, install two
4293 RELATIVE relocations. */
4294 if (!dynamic_symbol_p)
4295 {
4296 unsigned int dyn_r_type;
4297
4298 if (r_type == R_IA64_IPLTMSB)
4299 dyn_r_type = R_IA64_REL64MSB;
4300 else
4301 dyn_r_type = R_IA64_REL64LSB;
4302
4303 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4304 input_section,
4305 srel, rel->r_offset,
4306 dyn_r_type, 0, value);
4307 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4308 input_section,
4309 srel, rel->r_offset + 8,
4310 dyn_r_type, 0, gp_val);
4311 }
4312 else
4313 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4314 srel, rel->r_offset, r_type,
4315 h->dynindx, rel->r_addend);
4316 }
4317
4318 if (r_type == R_IA64_IPLTMSB)
4319 r_type = R_IA64_DIR64MSB;
4320 else
4321 r_type = R_IA64_DIR64LSB;
4322 ia64_elf_install_value (hit_addr, value, r_type);
4323 r = ia64_elf_install_value (hit_addr + 8, gp_val, r_type);
4324 break;
4325
4326 case R_IA64_TPREL14:
4327 case R_IA64_TPREL22:
4328 case R_IA64_TPREL64I:
4329 if (elf_hash_table (info)->tls_sec == NULL)
4330 goto missing_tls_sec;
4331 value -= elfNN_ia64_tprel_base (info);
4332 r = ia64_elf_install_value (hit_addr, value, r_type);
4333 break;
4334
4335 case R_IA64_DTPREL14:
4336 case R_IA64_DTPREL22:
4337 case R_IA64_DTPREL64I:
4338 case R_IA64_DTPREL32LSB:
4339 case R_IA64_DTPREL32MSB:
4340 case R_IA64_DTPREL64LSB:
4341 case R_IA64_DTPREL64MSB:
4342 if (elf_hash_table (info)->tls_sec == NULL)
4343 goto missing_tls_sec;
4344 value -= elfNN_ia64_dtprel_base (info);
4345 r = ia64_elf_install_value (hit_addr, value, r_type);
4346 break;
4347
4348 case R_IA64_LTOFF_TPREL22:
4349 case R_IA64_LTOFF_DTPMOD22:
4350 case R_IA64_LTOFF_DTPREL22:
4351 {
4352 int got_r_type;
4353 long dynindx = h ? h->dynindx : -1;
4354 bfd_vma r_addend = rel->r_addend;
4355
4356 switch (r_type)
4357 {
4358 default:
4359 case R_IA64_LTOFF_TPREL22:
4360 if (!dynamic_symbol_p)
4361 {
4362 if (elf_hash_table (info)->tls_sec == NULL)
4363 goto missing_tls_sec;
0e1862bb 4364 if (!bfd_link_pic (info))
cbe79dfe
TG		 4365 value -= elfNN_ia64_tprel_base (info);
4366 else
4367 {
4368 r_addend += value - elfNN_ia64_dtprel_base (info);
4369 dynindx = 0;
4370 }
4371 }
4372 got_r_type = R_IA64_TPREL64LSB;
4373 break;
4374 case R_IA64_LTOFF_DTPMOD22:
0e1862bb 4375 if (!dynamic_symbol_p && !bfd_link_pic (info))
cbe79dfe
TG		 4376 value = 1;
4377 got_r_type = R_IA64_DTPMOD64LSB;
4378 break;
4379 case R_IA64_LTOFF_DTPREL22:
4380 if (!dynamic_symbol_p)
4381 {
4382 if (elf_hash_table (info)->tls_sec == NULL)
4383 goto missing_tls_sec;
4384 value -= elfNN_ia64_dtprel_base (info);
4385 }
4386 got_r_type = R_IA64_DTPRELNNLSB;
4387 break;
4388 }
4389 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4390 value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
4391 value, got_r_type);
4392 value -= gp_val;
4393 r = ia64_elf_install_value (hit_addr, value, r_type);
4394 }
4395 break;
4396
4397 default:
4398 r = bfd_reloc_notsupported;
4399 break;
4400 }
4401
4402 switch (r)
4403 {
4404 case bfd_reloc_ok:
4405 break;
4406
4407 case bfd_reloc_undefined:
4408 /* This can happen for global table relative relocs if
4409 __gp is undefined. This is a panic situation so we
4410 don't try to continue. */
4411 (*info->callbacks->undefined_symbol)
4412 (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
4413 return FALSE;
4414
4415 case bfd_reloc_notsupported:
4416 {
4417 const char *name;
4418
4419 if (h)
4420 name = h->root.root.string;
4421 else
4422 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4423 sym_sec);
1a72702b
AM		 4424 (*info->callbacks->warning) (info, _("unsupported reloc"),
4425 name, input_bfd,
4426 input_section, rel->r_offset);
cbe79dfe
TG		 4427 ret_val = FALSE;
4428 }
4429 break;
4430
4431 case bfd_reloc_dangerous:
4432 case bfd_reloc_outofrange:
4433 case bfd_reloc_overflow:
4434 default:
dc1e8a47 4435 missing_tls_sec:
cbe79dfe
TG		 4436 {
4437 const char *name;
4438
4439 if (h)
4440 name = h->root.root.string;
4441 else
4442 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4443 sym_sec);
4444
4445 switch (r_type)
4446 {
4447 case R_IA64_TPREL14:
4448 case R_IA64_TPREL22:
4449 case R_IA64_TPREL64I:
4450 case R_IA64_DTPREL14:
4451 case R_IA64_DTPREL22:
4452 case R_IA64_DTPREL64I:
4453 case R_IA64_DTPREL32LSB:
4454 case R_IA64_DTPREL32MSB:
4455 case R_IA64_DTPREL64LSB:
4456 case R_IA64_DTPREL64MSB:
4457 case R_IA64_LTOFF_TPREL22:
4458 case R_IA64_LTOFF_DTPMOD22:
4459 case R_IA64_LTOFF_DTPREL22:
4eca0228 4460 _bfd_error_handler
695344c0 4461 /* xgettext:c-format */
871b3ab2 4462 (_("%pB: missing TLS section for relocation %s against `%s'"
2dcf00ce 4463 " at %#" PRIx64 " in section `%pA'."),
c08bb8dd 4464 input_bfd, howto->name, name,
2dcf00ce 4465 (uint64_t) rel->r_offset, input_section);
cbe79dfe
TG		 4466 break;
4467
4468 case R_IA64_PCREL21B:
4469 case R_IA64_PCREL21BI:
4470 case R_IA64_PCREL21M:
4471 case R_IA64_PCREL21F:
4472 if (is_elf_hash_table (info->hash))
4473 {
4474 /* Relaxtion is always performed for ELF output.
4475 Overflow failures for those relocations mean
4476 that the section is too big to relax. */
4eca0228 4477 _bfd_error_handler
695344c0 4478 /* xgettext:c-format */
2dcf00ce
AM		 4479 (_("%pB: Can't relax br (%s) to `%s' at %#" PRIx64
4480 " in section `%pA' with size %#" PRIx64
4481 " (> 0x1000000)."),
4482 input_bfd, howto->name, name, (uint64_t) rel->r_offset,
4483 input_section, (uint64_t) input_section->size);
cbe79dfe
TG		 4484 break;
4485 }
1a0670f3 4486 /* Fall through. */
cbe79dfe 4487 default:
1a72702b
AM		 4488 (*info->callbacks->reloc_overflow) (info,
4489 &h->root,
4490 name,
4491 howto->name,
4492 (bfd_vma) 0,
4493 input_bfd,
4494 input_section,
4495 rel->r_offset);
cbe79dfe
TG		 4496 break;
4497 }
4498
4499 ret_val = FALSE;
4500 }
4501 break;
4502 }
4503 }
4504
4505 return ret_val;
4506}
4507
4508static bfd_boolean
4509elfNN_ia64_finish_dynamic_symbol (bfd *output_bfd,
4510 struct bfd_link_info *info,
4511 struct elf_link_hash_entry *h,
4512 Elf_Internal_Sym *sym)
4513{
4514 struct elfNN_ia64_link_hash_table *ia64_info;
4515 struct elfNN_ia64_dyn_sym_info *dyn_i;
4516
4517 ia64_info = elfNN_ia64_hash_table (info);
4518 if (ia64_info == NULL)
4519 return FALSE;
4520
4521 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4522
4523 /* Fill in the PLT data, if required. */
4524 if (dyn_i && dyn_i->want_plt)
4525 {
4526 Elf_Internal_Rela outrel;
4527 bfd_byte *loc;
4528 asection *plt_sec;
4529 bfd_vma plt_addr, pltoff_addr, gp_val, plt_index;
4530
4531 gp_val = _bfd_get_gp_value (output_bfd);
4532
4533 /* Initialize the minimal PLT entry. */
4534
4535 plt_index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
4536 plt_sec = ia64_info->root.splt;
4537 loc = plt_sec->contents + dyn_i->plt_offset;
4538
4539 memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
4540 ia64_elf_install_value (loc, plt_index, R_IA64_IMM22);
4541 ia64_elf_install_value (loc+2, -dyn_i->plt_offset, R_IA64_PCREL21B);
4542
4543 plt_addr = (plt_sec->output_section->vma
4544 + plt_sec->output_offset
4545 + dyn_i->plt_offset);
4546 pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE);
4547
4548 /* Initialize the FULL PLT entry, if needed. */
4549 if (dyn_i->want_plt2)
4550 {
4551 loc = plt_sec->contents + dyn_i->plt2_offset;
4552
4553 memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
4554 ia64_elf_install_value (loc, pltoff_addr - gp_val, R_IA64_IMM22);
4555
4556 /* Mark the symbol as undefined, rather than as defined in the
4557 plt section. Leave the value alone. */
4558 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4559 first place. But perhaps elflink.c did some for us. */
4560 if (!h->def_regular)
4561 sym->st_shndx = SHN_UNDEF;
4562 }
4563
4564 /* Create the dynamic relocation. */
4565 outrel.r_offset = pltoff_addr;
4566 if (bfd_little_endian (output_bfd))
4567 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
4568 else
4569 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
4570 outrel.r_addend = 0;
4571
4572 /* This is fun. In the .IA_64.pltoff section, we've got entries
4573 that correspond both to real PLT entries, and those that
4574 happened to resolve to local symbols but need to be created
4575 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4576 relocations for the real PLT should come at the end of the
4577 section, so that they can be indexed by plt entry at runtime.
4578
4579 We emitted all of the relocations for the non-PLT @pltoff
4580 entries during relocate_section. So we can consider the
4581 existing sec->reloc_count to be the base of the array of
4582 PLT relocations. */
4583
4584 loc = ia64_info->rel_pltoff_sec->contents;
4585 loc += ((ia64_info->rel_pltoff_sec->reloc_count + plt_index)
4586 * sizeof (ElfNN_External_Rela));
4587 bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
4588 }
4589
4590 /* Mark some specially defined symbols as absolute. */
9637f6ef 4591 if (h == ia64_info->root.hdynamic
cbe79dfe
TG		 4592 || h == ia64_info->root.hgot
4593 || h == ia64_info->root.hplt)
4594 sym->st_shndx = SHN_ABS;
4595
4596 return TRUE;
4597}
4598
4599static bfd_boolean
4600elfNN_ia64_finish_dynamic_sections (bfd *abfd,
4601 struct bfd_link_info *info)
4602{
4603 struct elfNN_ia64_link_hash_table *ia64_info;
4604 bfd *dynobj;
4605
4606 ia64_info = elfNN_ia64_hash_table (info);
4607 if (ia64_info == NULL)
4608 return FALSE;
4609
4610 dynobj = ia64_info->root.dynobj;
4611
ce558b89 4612 if (ia64_info->root.dynamic_sections_created)
cbe79dfe
TG		 4613 {
4614 ElfNN_External_Dyn *dyncon, *dynconend;
4615 asection *sdyn, *sgotplt;
4616 bfd_vma gp_val;
4617
3d4d4302 4618 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
ce558b89 4619 sgotplt = ia64_info->root.sgotplt;
cbe79dfe
TG		 4620 BFD_ASSERT (sdyn != NULL);
4621 dyncon = (ElfNN_External_Dyn *) sdyn->contents;
4622 dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
4623
4624 gp_val = _bfd_get_gp_value (abfd);
4625
4626 for (; dyncon < dynconend; dyncon++)
4627 {
4628 Elf_Internal_Dyn dyn;
4629
4630 bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
4631
4632 switch (dyn.d_tag)
4633 {
4634 case DT_PLTGOT:
4635 dyn.d_un.d_ptr = gp_val;
4636 break;
4637
4638 case DT_PLTRELSZ:
4639 dyn.d_un.d_val = (ia64_info->minplt_entries
4640 * sizeof (ElfNN_External_Rela));
4641 break;
4642
4643 case DT_JMPREL:
4644 /* See the comment above in finish_dynamic_symbol. */
4645 dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
4646 + ia64_info->rel_pltoff_sec->output_offset
4647 + (ia64_info->rel_pltoff_sec->reloc_count
4648 * sizeof (ElfNN_External_Rela)));
4649 break;
4650
4651 case DT_IA_64_PLT_RESERVE:
4652 dyn.d_un.d_ptr = (sgotplt->output_section->vma
4653 + sgotplt->output_offset);
4654 break;
cbe79dfe
TG		 4655 }
4656
4657 bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
4658 }
4659
4660 /* Initialize the PLT0 entry. */
4661 if (ia64_info->root.splt)
4662 {
4663 bfd_byte *loc = ia64_info->root.splt->contents;
4664 bfd_vma pltres;
4665
4666 memcpy (loc, plt_header, PLT_HEADER_SIZE);
4667
4668 pltres = (sgotplt->output_section->vma
4669 + sgotplt->output_offset
4670 - gp_val);
4671
4672 ia64_elf_install_value (loc+1, pltres, R_IA64_GPREL22);
4673 }
4674 }
4675
4676 return TRUE;
4677}
4678\f
4679/* ELF file flag handling: */
4680
4681/* Function to keep IA-64 specific file flags. */
4682static bfd_boolean
4683elfNN_ia64_set_private_flags (bfd *abfd, flagword flags)
4684{
4685 BFD_ASSERT (!elf_flags_init (abfd)
4686 || elf_elfheader (abfd)->e_flags == flags);
4687
4688 elf_elfheader (abfd)->e_flags = flags;
4689 elf_flags_init (abfd) = TRUE;
4690 return TRUE;
4691}
4692
4693/* Merge backend specific data from an object file to the output
4694 object file when linking. */
b26a3d58 4695
cbe79dfe 4696static bfd_boolean
50e03d47 4697elfNN_ia64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
cbe79dfe 4698{
50e03d47 4699 bfd *obfd = info->output_bfd;
cbe79dfe
TG		 4700 flagword out_flags;
4701 flagword in_flags;
4702 bfd_boolean ok = TRUE;
4703
6b728d32
AM		 4704 /* FIXME: What should be checked when linking shared libraries? */
4705 if ((ibfd->flags & DYNAMIC) != 0)
4706 return TRUE;
4707
b26a3d58
ST		 4708 if (!is_ia64_elf (ibfd) || !is_ia64_elf (obfd))
4709 return TRUE;
cbe79dfe
TG		 4710
4711 in_flags = elf_elfheader (ibfd)->e_flags;
4712 out_flags = elf_elfheader (obfd)->e_flags;
4713
4714 if (! elf_flags_init (obfd))
4715 {
4716 elf_flags_init (obfd) = TRUE;
4717 elf_elfheader (obfd)->e_flags = in_flags;
4718
4719 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4720 && bfd_get_arch_info (obfd)->the_default)
4721 {
4722 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
4723 bfd_get_mach (ibfd));
4724 }
4725
4726 return TRUE;
4727 }
4728
4729 /* Check flag compatibility. */
4730 if (in_flags == out_flags)
4731 return TRUE;
4732
4733 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4734 if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
4735 elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
4736
4737 if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
4738 {
4eca0228 4739 _bfd_error_handler
871b3ab2 4740 (_("%pB: linking trap-on-NULL-dereference with non-trapping files"),
cbe79dfe
TG		 4741 ibfd);
4742
4743 bfd_set_error (bfd_error_bad_value);
4744 ok = FALSE;
4745 }
4746 if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
4747 {
4eca0228 4748 _bfd_error_handler
871b3ab2 4749 (_("%pB: linking big-endian files with little-endian files"),
cbe79dfe
TG		 4750 ibfd);
4751
4752 bfd_set_error (bfd_error_bad_value);
4753 ok = FALSE;
4754 }
4755 if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
4756 {
4eca0228 4757 _bfd_error_handler
871b3ab2 4758 (_("%pB: linking 64-bit files with 32-bit files"),
cbe79dfe
TG		 4759 ibfd);
4760
4761 bfd_set_error (bfd_error_bad_value);
4762 ok = FALSE;
4763 }
4764 if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
4765 {
4eca0228 4766 _bfd_error_handler
871b3ab2 4767 (_("%pB: linking constant-gp files with non-constant-gp files"),
cbe79dfe
TG		 4768 ibfd);
4769
4770 bfd_set_error (bfd_error_bad_value);
4771 ok = FALSE;
4772 }
4773 if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
4774 != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
4775 {
4eca0228 4776 _bfd_error_handler
871b3ab2 4777 (_("%pB: linking auto-pic files with non-auto-pic files"),
cbe79dfe
TG		 4778 ibfd);
4779
4780 bfd_set_error (bfd_error_bad_value);
4781 ok = FALSE;
4782 }
4783
4784 return ok;
4785}
4786
4787static bfd_boolean
2c3fc389 4788elfNN_ia64_print_private_bfd_data (bfd *abfd, void * ptr)
cbe79dfe
TG		 4789{
4790 FILE *file = (FILE *) ptr;
4791 flagword flags = elf_elfheader (abfd)->e_flags;
4792
4793 BFD_ASSERT (abfd != NULL && ptr != NULL);
4794
4795 fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
4796 (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
4797 (flags & EF_IA_64_EXT) ? "EXT, " : "",
4798 (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
4799 (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
4800 (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
4801 (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
4802 (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
4803 (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
4804
4805 _bfd_elf_print_private_bfd_data (abfd, ptr);
4806 return TRUE;
4807}
4808
4809static enum elf_reloc_type_class
7e612e98
AM		 4810elfNN_ia64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4811 const asection *rel_sec ATTRIBUTE_UNUSED,
4812 const Elf_Internal_Rela *rela)
cbe79dfe
TG		 4813{
4814 switch ((int) ELFNN_R_TYPE (rela->r_info))
4815 {
4816 case R_IA64_REL32MSB:
4817 case R_IA64_REL32LSB:
4818 case R_IA64_REL64MSB:
4819 case R_IA64_REL64LSB:
4820 return reloc_class_relative;
4821 case R_IA64_IPLTMSB:
4822 case R_IA64_IPLTLSB:
4823 return reloc_class_plt;
4824 case R_IA64_COPY:
4825 return reloc_class_copy;
4826 default:
4827 return reloc_class_normal;
4828 }
4829}
4830
4831static const struct bfd_elf_special_section elfNN_ia64_special_sections[] =
4832{
07d6d2b8 4833 { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
cbe79dfe 4834 { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
07d6d2b8 4835 { NULL, 0, 0, 0, 0 }
cbe79dfe
TG		 4836};
4837
4838static bfd_boolean
4839elfNN_ia64_object_p (bfd *abfd)
4840{
4841 asection *sec;
4842 asection *group, *unwi, *unw;
4843 flagword flags;
4844 const char *name;
4845 char *unwi_name, *unw_name;
986f0783 4846 size_t amt;
cbe79dfe
TG		 4847
4848 if (abfd->flags & DYNAMIC)
4849 return TRUE;
4850
4851 /* Flags for fake group section. */
4852 flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE
4853 | SEC_EXCLUDE);
4854
4855 /* We add a fake section group for each .gnu.linkonce.t.* section,
4856 which isn't in a section group, and its unwind sections. */
4857 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4858 {
4859 if (elf_sec_group (sec) == NULL
4860 && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP))
4861 == (SEC_LINK_ONCE | SEC_CODE))
08dedd66 4862 && startswith (sec->name, ".gnu.linkonce.t."))
cbe79dfe
TG		 4863 {
4864 name = sec->name + 16;
4865
4866 amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi.");
4867 unwi_name = bfd_alloc (abfd, amt);
4868 if (!unwi_name)
4869 return FALSE;
4870
4871 strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name);
4872 unwi = bfd_get_section_by_name (abfd, unwi_name);
4873
4874 amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw.");
4875 unw_name = bfd_alloc (abfd, amt);
4876 if (!unw_name)
4877 return FALSE;
4878
4879 strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name);
4880 unw = bfd_get_section_by_name (abfd, unw_name);
4881
4882 /* We need to create a fake group section for it and its
4883 unwind sections. */
4884 group = bfd_make_section_anyway_with_flags (abfd, name,
4885 flags);
4886 if (group == NULL)
4887 return FALSE;
4888
4889 /* Move the fake group section to the beginning. */
4890 bfd_section_list_remove (abfd, group);
4891 bfd_section_list_prepend (abfd, group);
4892
4893 elf_next_in_group (group) = sec;
4894
4895 elf_group_name (sec) = name;
4896 elf_next_in_group (sec) = sec;
4897 elf_sec_group (sec) = group;
4898
4899 if (unwi)
4900 {
4901 elf_group_name (unwi) = name;
4902 elf_next_in_group (unwi) = sec;
4903 elf_next_in_group (sec) = unwi;
4904 elf_sec_group (unwi) = group;
4905 }
4906
4907 if (unw)
4908 {
4909 elf_group_name (unw) = name;
4910 if (unwi)
4911 {
4912 elf_next_in_group (unw) = elf_next_in_group (unwi);
4913 elf_next_in_group (unwi) = unw;
4914 }
4915 else
4916 {
4917 elf_next_in_group (unw) = sec;
4918 elf_next_in_group (sec) = unw;
4919 }
4920 elf_sec_group (unw) = group;
4921 }
4922
4923 /* Fake SHT_GROUP section header. */
4924 elf_section_data (group)->this_hdr.bfd_section = group;
4925 elf_section_data (group)->this_hdr.sh_type = SHT_GROUP;
4926 }
4927 }
4928 return TRUE;
4929}
4930
4931static bfd_boolean
4932elfNN_ia64_hpux_vec (const bfd_target *vec)
4933{
6d00b590
AM		 4934 extern const bfd_target ia64_elfNN_hpux_be_vec;
4935 return (vec == &ia64_elfNN_hpux_be_vec);
cbe79dfe
TG		 4936}
4937
ed7e9d0b
AM		 4938static bfd_boolean
4939elfNN_hpux_init_file_header (bfd *abfd, struct bfd_link_info *info)
cbe79dfe 4940{
ed7e9d0b 4941 Elf_Internal_Ehdr *i_ehdrp;
cbe79dfe 4942
ed7e9d0b
AM		 4943 if (!_bfd_elf_init_file_header (abfd, info))
4944 return FALSE;
4945
4946 i_ehdrp = elf_elfheader (abfd);
cbe79dfe
TG		 4947 i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
4948 i_ehdrp->e_ident[EI_ABIVERSION] = 1;
ed7e9d0b 4949 return TRUE;
cbe79dfe
TG		 4950}
4951
4952static bfd_boolean
4953elfNN_hpux_backend_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
4954 asection *sec, int *retval)
4955{
4956 if (bfd_is_com_section (sec))
4957 {
4958 *retval = SHN_IA_64_ANSI_COMMON;
4959 return TRUE;
4960 }
4961 return FALSE;
4962}
4963
4964static void
4965elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
4966 asymbol *asym)
4967{
4968 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
4969
4970 switch (elfsym->internal_elf_sym.st_shndx)
4971 {
4972 case SHN_IA_64_ANSI_COMMON:
4973 asym->section = bfd_com_section_ptr;
4974 asym->value = elfsym->internal_elf_sym.st_size;
4975 asym->flags &= ~BSF_GLOBAL;
4976 break;
4977 }
4978}
a859124d
AM		 4979
4980static void
4981ignore_errors (const char *fmt ATTRIBUTE_UNUSED, ...)
4982{
4983}
cbe79dfe 4984\f
6d00b590 4985#define TARGET_LITTLE_SYM ia64_elfNN_le_vec
cbe79dfe 4986#define TARGET_LITTLE_NAME "elfNN-ia64-little"
6d00b590 4987#define TARGET_BIG_SYM ia64_elfNN_be_vec
cbe79dfe
TG		 4988#define TARGET_BIG_NAME "elfNN-ia64-big"
4989#define ELF_ARCH bfd_arch_ia64
4990#define ELF_TARGET_ID IA64_ELF_DATA
4991#define ELF_MACHINE_CODE EM_IA_64
4992#define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4993#define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4994#define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4995#define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
4996
4997#define elf_backend_section_from_shdr \
4998 elfNN_ia64_section_from_shdr
4999#define elf_backend_section_flags \
5000 elfNN_ia64_section_flags
5001#define elf_backend_fake_sections \
5002 elfNN_ia64_fake_sections
5003#define elf_backend_final_write_processing \
5004 elfNN_ia64_final_write_processing
5005#define elf_backend_add_symbol_hook \
5006 elfNN_ia64_add_symbol_hook
5007#define elf_backend_additional_program_headers \
5008 elfNN_ia64_additional_program_headers
5009#define elf_backend_modify_segment_map \
5010 elfNN_ia64_modify_segment_map
6d6c25c8
AM		 5011#define elf_backend_modify_headers \
5012 elfNN_ia64_modify_headers
cbe79dfe
TG		 5013#define elf_info_to_howto \
5014 elfNN_ia64_info_to_howto
5015
5016#define bfd_elfNN_bfd_reloc_type_lookup \
5017 ia64_elf_reloc_type_lookup
5018#define bfd_elfNN_bfd_reloc_name_lookup \
5019 ia64_elf_reloc_name_lookup
5020#define bfd_elfNN_bfd_is_local_label_name \
5021 elfNN_ia64_is_local_label_name
5022#define bfd_elfNN_bfd_relax_section \
5023 elfNN_ia64_relax_section
5024
5025#define elf_backend_object_p \
5026 elfNN_ia64_object_p
5027
5028/* Stuff for the BFD linker: */
5029#define bfd_elfNN_bfd_link_hash_table_create \
5030 elfNN_ia64_hash_table_create
cbe79dfe
TG		 5031#define elf_backend_create_dynamic_sections \
5032 elfNN_ia64_create_dynamic_sections
5033#define elf_backend_check_relocs \
5034 elfNN_ia64_check_relocs
5035#define elf_backend_adjust_dynamic_symbol \
5036 elfNN_ia64_adjust_dynamic_symbol
5037#define elf_backend_size_dynamic_sections \
5038 elfNN_ia64_size_dynamic_sections
5039#define elf_backend_omit_section_dynsym \
d00dd7dc 5040 _bfd_elf_omit_section_dynsym_all
cbe79dfe
TG		 5041#define elf_backend_relocate_section \
5042 elfNN_ia64_relocate_section
5043#define elf_backend_finish_dynamic_symbol \
5044 elfNN_ia64_finish_dynamic_symbol
5045#define elf_backend_finish_dynamic_sections \
5046 elfNN_ia64_finish_dynamic_sections
5047#define bfd_elfNN_bfd_final_link \
5048 elfNN_ia64_final_link
5049
5050#define bfd_elfNN_bfd_merge_private_bfd_data \
5051 elfNN_ia64_merge_private_bfd_data
5052#define bfd_elfNN_bfd_set_private_flags \
5053 elfNN_ia64_set_private_flags
5054#define bfd_elfNN_bfd_print_private_bfd_data \
5055 elfNN_ia64_print_private_bfd_data
5056
5057#define elf_backend_plt_readonly 1
6e8d06db 5058#define elf_backend_can_gc_sections 1
cbe79dfe
TG		 5059#define elf_backend_want_plt_sym 0
5060#define elf_backend_plt_alignment 5
5061#define elf_backend_got_header_size 0
5062#define elf_backend_want_got_plt 1
5063#define elf_backend_may_use_rel_p 1
5064#define elf_backend_may_use_rela_p 1
5065#define elf_backend_default_use_rela_p 1
5066#define elf_backend_want_dynbss 0
5067#define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5068#define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5069#define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
5070#define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5071#define elf_backend_rela_normal 1
64f52338 5072#define elf_backend_dtrel_excludes_plt 1
cbe79dfe
TG		 5073#define elf_backend_special_sections elfNN_ia64_special_sections
5074#define elf_backend_default_execstack 0
5075
5076/* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5077 SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
5078 We don't want to flood users with so many error messages. We turn
5079 off the warning for now. It will be turned on later when the Intel
5080 compiler is fixed. */
a859124d 5081#define elf_backend_link_order_error_handler ignore_errors
cbe79dfe
TG		 5082
5083#include "elfNN-target.h"
5084
5085/* HPUX-specific vectors. */
5086
5087#undef TARGET_LITTLE_SYM
5088#undef TARGET_LITTLE_NAME
5089#undef TARGET_BIG_SYM
07d6d2b8
AM		 5090#define TARGET_BIG_SYM ia64_elfNN_hpux_be_vec
5091#undef TARGET_BIG_NAME
5092#define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
cbe79dfe
TG		 5093
5094/* These are HP-UX specific functions. */
5095
ed7e9d0b
AM		 5096#undef elf_backend_init_file_header
5097#define elf_backend_init_file_header elfNN_hpux_init_file_header
cbe79dfe
TG		 5098
5099#undef elf_backend_section_from_bfd_section
5100#define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5101
5102#undef elf_backend_symbol_processing
5103#define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5104
5105#undef elf_backend_want_p_paddr_set_to_zero
5106#define elf_backend_want_p_paddr_set_to_zero 1
5107
5108#undef ELF_COMMONPAGESIZE
5109#undef ELF_OSABI
5110#define ELF_OSABI ELFOSABI_HPUX
5111
5112#undef elfNN_bed
5113#define elfNN_bed elfNN_ia64_hpux_bed
5114
5115#include "elfNN-target.h"
GDB Binutils - Deliverables
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