Use gdb::byte_vector in pascal_object_print_value
[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
2571583a 2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
252b5132 3
30667bf3 4 Original code by
252b5132
RH
5 Center for Software Science
6 Department of Computer Science
7 University of Utah
30667bf3 8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9b52905e
NC
9 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
10 TLS support written by Randolph Chung <tausq@debian.org>
68ffbac6 11
ae9a127f 12 This file is part of BFD, the Binary File Descriptor library.
252b5132 13
ae9a127f
NC
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
cd123cb7 16 the Free Software Foundation; either version 3 of the License, or
ae9a127f 17 (at your option) any later version.
252b5132 18
ae9a127f
NC
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
252b5132 23
ae9a127f
NC
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
cd123cb7
NC
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
252b5132 28
252b5132 29#include "sysdep.h"
3db64b00 30#include "bfd.h"
252b5132
RH
31#include "libbfd.h"
32#include "elf-bfd.h"
9e103c9c
JL
33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
RH
52
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
56
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
30667bf3
AM
59 necessary to build the linker stubs during a link.
60
61 There are a number of different stubs generated by the linker.
62
63 Long branch stub:
64 : ldil LR'X,%r1
65 : be,n RR'X(%sr4,%r1)
66
67 PIC long branch stub:
68 : b,l .+8,%r1
3ee1d854
AM
69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
30667bf3
AM
71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
3ee1d854
AM
74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 76 : bv %r0(%r21)
3ee1d854 77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
3ee1d854
AM
81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
3ee1d854
AM
88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
3ee1d854
AM
98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
875c0872
DA
118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
68ffbac6 125
875c0872
DA
126 elf32_hppa_link_hash_table "htab"
127 elf32_hppa_link_hash_entry "hh"
128
129 bfd_hash_table "btab"
130 bfd_hash_entry "bh"
68ffbac6 131
875c0872
DA
132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
134
135 elf32_hppa_dyn_reloc_entry "hdh"
68ffbac6 136
875c0872 137 Always remember to use GNU Coding Style. */
68ffbac6 138
30667bf3
AM
139#define PLT_ENTRY_SIZE 8
140#define GOT_ENTRY_SIZE 4
141#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
142
47d89dba
AM
143static const bfd_byte plt_stub[] =
144{
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148#define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153};
154
30667bf3 155/* Section name for stubs is the associated section name plus this
29942be8
NC
156 string. */
157#define STUB_SUFFIX ".stub"
30667bf3 158
98ceb8ce
AM
159/* We don't need to copy certain PC- or GP-relative dynamic relocs
160 into a shared object's dynamic section. All the relocs of the
161 limited class we are interested in, are absolute. */
162#ifndef RELATIVE_DYNRELOCS
163#define RELATIVE_DYNRELOCS 0
446f2863 164#define IS_ABSOLUTE_RELOC(r_type) 1
30667bf3
AM
165#endif
166
4fc8051d
AM
167/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 copying dynamic variables from a shared lib into an app's dynbss
169 section, and instead use a dynamic relocation to point into the
170 shared lib. */
171#define ELIMINATE_COPY_RELOCS 1
172
9b52905e
NC
173enum elf32_hppa_stub_type
174{
30667bf3
AM
175 hppa_stub_long_branch,
176 hppa_stub_long_branch_shared,
177 hppa_stub_import,
178 hppa_stub_import_shared,
179 hppa_stub_export,
180 hppa_stub_none
181};
182
9b52905e
NC
183struct elf32_hppa_stub_hash_entry
184{
edd21aca 185 /* Base hash table entry structure. */
a63e02c7 186 struct bfd_hash_entry bh_root;
252b5132 187
edd21aca
AM
188 /* The stub section. */
189 asection *stub_sec;
190
191 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 192 bfd_vma stub_offset;
252b5132
RH
193
194 /* Given the symbol's value and its section we can determine its final
195 value when building the stubs (so the stub knows where to jump. */
30667bf3 196 bfd_vma target_value;
252b5132 197 asection *target_section;
30667bf3
AM
198
199 enum elf32_hppa_stub_type stub_type;
200
201 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 202 struct elf32_hppa_link_hash_entry *hh;
30667bf3 203
25f72752
AM
204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
206 asection *id_sec;
252b5132
RH
207};
208
9b52905e
NC
209struct elf32_hppa_link_hash_entry
210{
a63e02c7 211 struct elf_link_hash_entry eh;
30667bf3
AM
212
213 /* A pointer to the most recently used stub hash entry against this
214 symbol. */
a63e02c7 215 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 216
30667bf3
AM
217 /* Used to count relocations for delayed sizing of relocation
218 sections. */
9b52905e
NC
219 struct elf32_hppa_dyn_reloc_entry
220 {
30667bf3 221 /* Next relocation in the chain. */
a63e02c7 222 struct elf32_hppa_dyn_reloc_entry *hdh_next;
30667bf3 223
98ceb8ce
AM
224 /* The input section of the reloc. */
225 asection *sec;
30667bf3
AM
226
227 /* Number of relocs copied in this section. */
228 bfd_size_type count;
98ceb8ce
AM
229
230#if RELATIVE_DYNRELOCS
231 /* Number of relative relocs copied for the input section. */
232 bfd_size_type relative_count;
233#endif
234 } *dyn_relocs;
30667bf3 235
9b52905e
NC
236 enum
237 {
238 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
239 } tls_type;
240
74d1c347
AM
241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel:1;
30667bf3
AM
243};
244
9b52905e
NC
245struct elf32_hppa_link_hash_table
246{
252b5132 247 /* The main hash table. */
a63e02c7 248 struct elf_link_hash_table etab;
252b5132
RH
249
250 /* The stub hash table. */
a63e02c7 251 struct bfd_hash_table bstab;
252b5132 252
30667bf3
AM
253 /* Linker stub bfd. */
254 bfd *stub_bfd;
255
30667bf3 256 /* Linker call-backs. */
c39a58e6
AM
257 asection * (*add_stub_section) (const char *, asection *);
258 void (*layout_sections_again) (void);
30667bf3 259
25f72752
AM
260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
9b52905e
NC
262 struct map_stub
263 {
25f72752
AM
264 /* This is the section to which stubs in the group will be
265 attached. */
266 asection *link_sec;
267 /* The stub section. */
268 asection *stub_sec;
25f72752 269 } *stub_group;
30667bf3 270
b4655ea9
AM
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
7292b3ac 273 unsigned int top_index;
b4655ea9
AM
274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
c46b7515
AM
277 /* Used during a final link to store the base of the text and data
278 segments so that we can perform SEGREL relocations. */
279 bfd_vma text_segment_base;
280 bfd_vma data_segment_base;
281
47d89dba
AM
282 /* Whether we support multiple sub-spaces for shared libs. */
283 unsigned int multi_subspace:1;
284
067fa4a6 285 /* Flags set when various size branches are detected. Used to
47d89dba
AM
286 select suitable defaults for the stub group size. */
287 unsigned int has_12bit_branch:1;
288 unsigned int has_17bit_branch:1;
067fa4a6 289 unsigned int has_22bit_branch:1;
47d89dba
AM
290
291 /* Set if we need a .plt stub to support lazy dynamic linking. */
292 unsigned int need_plt_stub:1;
ec338859 293
87d72d41
AM
294 /* Small local sym cache. */
295 struct sym_cache sym_cache;
9b52905e
NC
296
297 /* Data for LDM relocations. */
298 union
299 {
300 bfd_signed_vma refcount;
301 bfd_vma offset;
302 } tls_ldm_got;
252b5132
RH
303};
304
30667bf3
AM
305/* Various hash macros and functions. */
306#define hppa_link_hash_table(p) \
4dfe6ac6
NC
307 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
308 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 309
875c0872
DA
310#define hppa_elf_hash_entry(ent) \
311 ((struct elf32_hppa_link_hash_entry *)(ent))
312
313#define hppa_stub_hash_entry(ent) \
314 ((struct elf32_hppa_stub_hash_entry *)(ent))
315
30667bf3
AM
316#define hppa_stub_hash_lookup(table, string, create, copy) \
317 ((struct elf32_hppa_stub_hash_entry *) \
318 bfd_hash_lookup ((table), (string), (create), (copy)))
319
9b52905e
NC
320#define hppa_elf_local_got_tls_type(abfd) \
321 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
322
323#define hh_name(hh) \
324 (hh ? hh->eh.root.root.string : "<undef>")
325
326#define eh_name(eh) \
327 (eh ? eh->root.root.string : "<undef>")
328
252b5132
RH
329/* Assorted hash table functions. */
330
331/* Initialize an entry in the stub hash table. */
332
333static struct bfd_hash_entry *
c39a58e6
AM
334stub_hash_newfunc (struct bfd_hash_entry *entry,
335 struct bfd_hash_table *table,
336 const char *string)
252b5132 337{
252b5132
RH
338 /* Allocate the structure if it has not already been allocated by a
339 subclass. */
ebe50bae 340 if (entry == NULL)
30667bf3 341 {
ebe50bae
AM
342 entry = bfd_hash_allocate (table,
343 sizeof (struct elf32_hppa_stub_hash_entry));
344 if (entry == NULL)
345 return entry;
30667bf3 346 }
252b5132
RH
347
348 /* Call the allocation method of the superclass. */
ebe50bae
AM
349 entry = bfd_hash_newfunc (entry, table, string);
350 if (entry != NULL)
252b5132 351 {
875c0872 352 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 353
252b5132 354 /* Initialize the local fields. */
875c0872
DA
355 hsh = hppa_stub_hash_entry (entry);
356 hsh->stub_sec = NULL;
357 hsh->stub_offset = 0;
358 hsh->target_value = 0;
359 hsh->target_section = NULL;
360 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 361 hsh->hh = NULL;
875c0872 362 hsh->id_sec = NULL;
30667bf3
AM
363 }
364
ebe50bae 365 return entry;
30667bf3
AM
366}
367
30667bf3
AM
368/* Initialize an entry in the link hash table. */
369
370static struct bfd_hash_entry *
c39a58e6
AM
371hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
372 struct bfd_hash_table *table,
373 const char *string)
30667bf3 374{
30667bf3
AM
375 /* Allocate the structure if it has not already been allocated by a
376 subclass. */
ebe50bae 377 if (entry == NULL)
30667bf3 378 {
ebe50bae
AM
379 entry = bfd_hash_allocate (table,
380 sizeof (struct elf32_hppa_link_hash_entry));
381 if (entry == NULL)
382 return entry;
30667bf3
AM
383 }
384
385 /* Call the allocation method of the superclass. */
ebe50bae
AM
386 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
387 if (entry != NULL)
30667bf3 388 {
875c0872 389 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 390
30667bf3 391 /* Initialize the local fields. */
875c0872 392 hh = hppa_elf_hash_entry (entry);
a63e02c7 393 hh->hsh_cache = NULL;
875c0872
DA
394 hh->dyn_relocs = NULL;
395 hh->plabel = 0;
9b52905e 396 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
397 }
398
ebe50bae 399 return entry;
252b5132
RH
400}
401
68faa637
AM
402/* Free the derived linker hash table. */
403
404static void
d495ab0d 405elf32_hppa_link_hash_table_free (bfd *obfd)
68faa637
AM
406{
407 struct elf32_hppa_link_hash_table *htab
d495ab0d 408 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
68faa637
AM
409
410 bfd_hash_table_free (&htab->bstab);
d495ab0d 411 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM
412}
413
252b5132
RH
414/* Create the derived linker hash table. The PA ELF port uses the derived
415 hash table to keep information specific to the PA ELF linker (without
416 using static variables). */
417
418static struct bfd_link_hash_table *
c39a58e6 419elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 420{
875c0872
DA
421 struct elf32_hppa_link_hash_table *htab;
422 bfd_size_type amt = sizeof (*htab);
252b5132 423
7bf52ea2 424 htab = bfd_zmalloc (amt);
875c0872 425 if (htab == NULL)
252b5132 426 return NULL;
edd21aca 427
66eb6687 428 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
429 sizeof (struct elf32_hppa_link_hash_entry),
430 HPPA32_ELF_DATA))
252b5132 431 {
875c0872 432 free (htab);
252b5132
RH
433 return NULL;
434 }
edd21aca
AM
435
436 /* Init the stub hash table too. */
66eb6687
AM
437 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
438 sizeof (struct elf32_hppa_stub_hash_entry)))
d495ab0d
AM
439 {
440 _bfd_elf_link_hash_table_free (abfd);
441 return NULL;
442 }
443 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
edd21aca 444
875c0872
DA
445 htab->text_segment_base = (bfd_vma) -1;
446 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 447 return &htab->etab.root;
252b5132
RH
448}
449
a464198b
AM
450/* Initialize the linker stubs BFD so that we can use it for linker
451 created dynamic sections. */
452
453void
454elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
455{
456 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
457
458 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
459 htab->etab.dynobj = abfd;
460}
461
30667bf3
AM
462/* Build a name for an entry in the stub hash table. */
463
edd21aca 464static char *
c39a58e6
AM
465hppa_stub_name (const asection *input_section,
466 const asection *sym_sec,
875c0872
DA
467 const struct elf32_hppa_link_hash_entry *hh,
468 const Elf_Internal_Rela *rela)
edd21aca
AM
469{
470 char *stub_name;
dc810e39 471 bfd_size_type len;
edd21aca 472
875c0872 473 if (hh)
30667bf3 474 {
9b52905e 475 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
476 stub_name = bfd_malloc (len);
477 if (stub_name != NULL)
9b52905e
NC
478 sprintf (stub_name, "%08x_%s+%x",
479 input_section->id & 0xffffffff,
480 hh_name (hh),
481 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
482 }
483 else
edd21aca 484 {
30667bf3
AM
485 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
486 stub_name = bfd_malloc (len);
487 if (stub_name != NULL)
9b52905e
NC
488 sprintf (stub_name, "%08x_%x:%x+%x",
489 input_section->id & 0xffffffff,
490 sym_sec->id & 0xffffffff,
491 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
492 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
493 }
494 return stub_name;
495}
252b5132 496
30667bf3
AM
497/* Look up an entry in the stub hash. Stub entries are cached because
498 creating the stub name takes a bit of time. */
499
500static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
501hppa_get_stub_entry (const asection *input_section,
502 const asection *sym_sec,
875c0872
DA
503 struct elf32_hppa_link_hash_entry *hh,
504 const Elf_Internal_Rela *rela,
c39a58e6 505 struct elf32_hppa_link_hash_table *htab)
252b5132 506{
a63e02c7 507 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
508 const asection *id_sec;
509
510 /* If this input section is part of a group of sections sharing one
511 stub section, then use the id of the first section in the group.
512 Stub names need to include a section id, as there may well be
513 more than one stub used to reach say, printf, and we need to
514 distinguish between them. */
83c81bfe 515 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 516
a63e02c7
DA
517 if (hh != NULL && hh->hsh_cache != NULL
518 && hh->hsh_cache->hh == hh
519 && hh->hsh_cache->id_sec == id_sec)
edd21aca 520 {
a63e02c7 521 hsh_entry = hh->hsh_cache;
30667bf3
AM
522 }
523 else
524 {
30667bf3 525 char *stub_name;
edd21aca 526
875c0872 527 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
528 if (stub_name == NULL)
529 return NULL;
edd21aca 530
a63e02c7 531 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 532 stub_name, FALSE, FALSE);
875c0872 533 if (hh != NULL)
a63e02c7 534 hh->hsh_cache = hsh_entry;
30667bf3
AM
535
536 free (stub_name);
edd21aca 537 }
30667bf3 538
a63e02c7 539 return hsh_entry;
30667bf3
AM
540}
541
30667bf3
AM
542/* Add a new stub entry to the stub hash. Not all fields of the new
543 stub entry are initialised. */
544
545static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
546hppa_add_stub (const char *stub_name,
547 asection *section,
548 struct elf32_hppa_link_hash_table *htab)
30667bf3 549{
25f72752 550 asection *link_sec;
30667bf3 551 asection *stub_sec;
875c0872 552 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 553
83c81bfe
AM
554 link_sec = htab->stub_group[section->id].link_sec;
555 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 556 if (stub_sec == NULL)
edd21aca 557 {
83c81bfe 558 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
559 if (stub_sec == NULL)
560 {
d4c88bbb 561 size_t namelen;
dc810e39 562 bfd_size_type len;
30667bf3
AM
563 char *s_name;
564
d4c88bbb
AM
565 namelen = strlen (link_sec->name);
566 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 567 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
568 if (s_name == NULL)
569 return NULL;
570
d4c88bbb
AM
571 memcpy (s_name, link_sec->name, namelen);
572 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 573 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
574 if (stub_sec == NULL)
575 return NULL;
83c81bfe 576 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 577 }
83c81bfe 578 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 579 }
252b5132 580
30667bf3 581 /* Enter this entry into the linker stub hash table. */
a63e02c7 582 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 583 TRUE, FALSE);
875c0872 584 if (hsh == NULL)
30667bf3 585 {
695344c0 586 /* xgettext:c-format */
4eca0228
AM
587 _bfd_error_handler (_("%B: cannot create stub entry %s"),
588 section->owner, stub_name);
30667bf3 589 return NULL;
edd21aca
AM
590 }
591
875c0872
DA
592 hsh->stub_sec = stub_sec;
593 hsh->stub_offset = 0;
594 hsh->id_sec = link_sec;
595 return hsh;
edd21aca
AM
596}
597
30667bf3
AM
598/* Determine the type of stub needed, if any, for a call. */
599
600static enum elf32_hppa_stub_type
c39a58e6 601hppa_type_of_stub (asection *input_sec,
875c0872
DA
602 const Elf_Internal_Rela *rela,
603 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
604 bfd_vma destination,
605 struct bfd_link_info *info)
edd21aca 606{
edd21aca 607 bfd_vma location;
30667bf3
AM
608 bfd_vma branch_offset;
609 bfd_vma max_branch_offset;
610 unsigned int r_type;
611
875c0872 612 if (hh != NULL
a63e02c7
DA
613 && hh->eh.plt.offset != (bfd_vma) -1
614 && hh->eh.dynindx != -1
875c0872 615 && !hh->plabel
0e1862bb 616 && (bfd_link_pic (info)
a63e02c7
DA
617 || !hh->eh.def_regular
618 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 619 {
067fa4a6
AM
620 /* We need an import stub. Decide between hppa_stub_import
621 and hppa_stub_import_shared later. */
30667bf3
AM
622 return hppa_stub_import;
623 }
edd21aca 624
30667bf3
AM
625 /* Determine where the call point is. */
626 location = (input_sec->output_offset
627 + input_sec->output_section->vma
875c0872 628 + rela->r_offset);
edd21aca 629
30667bf3 630 branch_offset = destination - location - 8;
875c0872 631 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 632
30667bf3
AM
633 /* Determine if a long branch stub is needed. parisc branch offsets
634 are relative to the second instruction past the branch, ie. +8
635 bytes on from the branch instruction location. The offset is
636 signed and counts in units of 4 bytes. */
637 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
638 max_branch_offset = (1 << (17 - 1)) << 2;
639
30667bf3 640 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
641 max_branch_offset = (1 << (12 - 1)) << 2;
642
25f72752 643 else /* R_PARISC_PCREL22F. */
9b52905e 644 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 645
30667bf3 646 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
647 return hppa_stub_long_branch;
648
30667bf3
AM
649 return hppa_stub_none;
650}
edd21aca 651
30667bf3
AM
652/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
653 IN_ARG contains the link info pointer. */
edd21aca 654
30667bf3
AM
655#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
656#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 657
30667bf3 658#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 659#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 660#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 661
3ee1d854
AM
662#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
663#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 664#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 665#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 666
3ee1d854
AM
667#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
668#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 669
30667bf3
AM
670#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
671#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
672#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
673#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 674
067fa4a6 675#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
676#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
677#define NOP 0x08000240 /* nop */
678#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
679#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
680#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 681
30667bf3
AM
682#ifndef R19_STUBS
683#define R19_STUBS 1
684#endif
edd21aca 685
30667bf3
AM
686#if R19_STUBS
687#define LDW_R1_DLT LDW_R1_R19
688#else
689#define LDW_R1_DLT LDW_R1_DP
690#endif
edd21aca 691
b34976b6 692static bfd_boolean
875c0872 693hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 694{
875c0872 695 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 696 struct bfd_link_info *info;
83c81bfe 697 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
698 asection *stub_sec;
699 bfd *stub_bfd;
700 bfd_byte *loc;
701 bfd_vma sym_value;
74d1c347 702 bfd_vma insn;
8dea1268 703 bfd_vma off;
74d1c347 704 int val;
30667bf3 705 int size;
edd21aca 706
30667bf3 707 /* Massage our args to the form they really have. */
875c0872
DA
708 hsh = hppa_stub_hash_entry (bh);
709 info = (struct bfd_link_info *)in_arg;
30667bf3 710
83c81bfe 711 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
712 if (htab == NULL)
713 return FALSE;
714
875c0872 715 stub_sec = hsh->stub_sec;
edd21aca 716
30667bf3 717 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
718 hsh->stub_offset = stub_sec->size;
719 loc = stub_sec->contents + hsh->stub_offset;
252b5132 720
30667bf3
AM
721 stub_bfd = stub_sec->owner;
722
875c0872 723 switch (hsh->stub_type)
30667bf3
AM
724 {
725 case hppa_stub_long_branch:
726 /* Create the long branch. A long branch is formed with "ldil"
727 loading the upper bits of the target address into a register,
728 then branching with "be" which adds in the lower bits.
729 The "be" has its delay slot nullified. */
875c0872
DA
730 sym_value = (hsh->target_value
731 + hsh->target_section->output_offset
732 + hsh->target_section->output_section->vma);
30667bf3 733
c39a58e6 734 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 735 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
736 bfd_put_32 (stub_bfd, insn, loc);
737
c39a58e6 738 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 739 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
740 bfd_put_32 (stub_bfd, insn, loc + 4);
741
30667bf3 742 size = 8;
edd21aca
AM
743 break;
744
30667bf3
AM
745 case hppa_stub_long_branch_shared:
746 /* Branches are relative. This is where we are going to. */
875c0872
DA
747 sym_value = (hsh->target_value
748 + hsh->target_section->output_offset
749 + hsh->target_section->output_section->vma);
30667bf3
AM
750
751 /* And this is where we are coming from, more or less. */
875c0872 752 sym_value -= (hsh->stub_offset
30667bf3
AM
753 + stub_sec->output_offset
754 + stub_sec->output_section->vma);
755
74d1c347 756 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 757 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 758 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
759 bfd_put_32 (stub_bfd, insn, loc + 4);
760
47d89dba 761 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 762 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
763 bfd_put_32 (stub_bfd, insn, loc + 8);
764 size = 12;
765 break;
edd21aca 766
30667bf3
AM
767 case hppa_stub_import:
768 case hppa_stub_import_shared:
a63e02c7 769 off = hsh->hh->eh.plt.offset;
8dea1268 770 if (off >= (bfd_vma) -2)
49e9d0d3 771 abort ();
8dea1268
AM
772
773 off &= ~ (bfd_vma) 1;
774 sym_value = (off
ce558b89
AM
775 + htab->etab.splt->output_offset
776 + htab->etab.splt->output_section->vma
777 - elf_gp (htab->etab.splt->output_section->owner));
30667bf3
AM
778
779 insn = ADDIL_DP;
780#if R19_STUBS
875c0872 781 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
782 insn = ADDIL_R19;
783#endif
c39a58e6 784 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 785 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 786 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 787
47d89dba
AM
788 /* It is critical to use lrsel/rrsel here because we are using
789 two different offsets (+0 and +4) from sym_value. If we use
790 lsel/rsel then with unfortunate sym_values we will round
791 sym_value+4 up to the next 2k block leading to a mis-match
792 between the lsel and rsel value. */
c39a58e6 793 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 794 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 795 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 796
83c81bfe 797 if (htab->multi_subspace)
30667bf3 798 {
47d89dba 799 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 800 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 801 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 802
74d1c347
AM
803 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
804 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
805 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
806 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 807
30667bf3
AM
808 size = 28;
809 }
810 else
811 {
74d1c347 812 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 813 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 814 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 815 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 816
30667bf3
AM
817 size = 16;
818 }
252b5132 819
30667bf3 820 break;
252b5132 821
30667bf3
AM
822 case hppa_stub_export:
823 /* Branches are relative. This is where we are going to. */
875c0872
DA
824 sym_value = (hsh->target_value
825 + hsh->target_section->output_offset
826 + hsh->target_section->output_section->vma);
252b5132 827
30667bf3 828 /* And this is where we are coming from. */
875c0872 829 sym_value -= (hsh->stub_offset
30667bf3
AM
830 + stub_sec->output_offset
831 + stub_sec->output_section->vma);
edd21aca 832
067fa4a6
AM
833 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
834 && (!htab->has_22bit_branch
835 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 836 {
4eca0228 837 _bfd_error_handler
695344c0 838 /* xgettext:c-format */
d42c267e 839 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 840 hsh->target_section->owner,
d003868e 841 stub_sec,
d42c267e 842 hsh->stub_offset,
a63e02c7 843 hsh->bh_root.string);
30667bf3 844 bfd_set_error (bfd_error_bad_value);
b34976b6 845 return FALSE;
252b5132 846 }
30667bf3 847
74d1c347 848 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
849 if (!htab->has_22bit_branch)
850 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
851 else
852 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
853 bfd_put_32 (stub_bfd, insn, loc);
854
74d1c347
AM
855 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
856 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
857 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
858 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
859 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
860
861 /* Point the function symbol at the stub. */
a63e02c7
DA
862 hsh->hh->eh.root.u.def.section = stub_sec;
863 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
864
865 size = 24;
866 break;
867
868 default:
869 BFD_FAIL ();
b34976b6 870 return FALSE;
252b5132
RH
871 }
872
eea6121a 873 stub_sec->size += size;
b34976b6 874 return TRUE;
252b5132
RH
875}
876
30667bf3
AM
877#undef LDIL_R1
878#undef BE_SR4_R1
879#undef BL_R1
880#undef ADDIL_R1
881#undef DEPI_R1
30667bf3
AM
882#undef LDW_R1_R21
883#undef LDW_R1_DLT
884#undef LDW_R1_R19
885#undef ADDIL_R19
886#undef LDW_R1_DP
887#undef LDSID_R21_R1
888#undef MTSP_R1
889#undef BE_SR0_R21
890#undef STW_RP
891#undef BV_R0_R21
892#undef BL_RP
893#undef NOP
894#undef LDW_RP
895#undef LDSID_RP_R1
896#undef BE_SR0_RP
252b5132 897
30667bf3
AM
898/* As above, but don't actually build the stub. Just bump offset so
899 we know stub section sizes. */
900
b34976b6 901static bfd_boolean
875c0872 902hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 903{
875c0872 904 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 905 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
906 int size;
907
908 /* Massage our args to the form they really have. */
875c0872 909 hsh = hppa_stub_hash_entry (bh);
c39a58e6 910 htab = in_arg;
30667bf3 911
875c0872 912 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 913 size = 8;
875c0872 914 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 915 size = 12;
875c0872 916 else if (hsh->stub_type == hppa_stub_export)
30667bf3 917 size = 24;
74d1c347 918 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 919 {
83c81bfe 920 if (htab->multi_subspace)
30667bf3
AM
921 size = 28;
922 else
923 size = 16;
924 }
252b5132 925
875c0872 926 hsh->stub_sec->size += size;
b34976b6 927 return TRUE;
30667bf3 928}
252b5132 929
30667bf3
AM
930/* Return nonzero if ABFD represents an HPPA ELF32 file.
931 Additionally we set the default architecture and machine. */
932
b34976b6 933static bfd_boolean
c39a58e6 934elf32_hppa_object_p (bfd *abfd)
30667bf3 935{
24a5e751
L
936 Elf_Internal_Ehdr * i_ehdrp;
937 unsigned int flags;
252b5132 938
24a5e751
L
939 i_ehdrp = elf_elfheader (abfd);
940 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
941 {
9c55345c 942 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 943 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 944 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 945 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 946 return FALSE;
24a5e751 947 }
225247f0
JT
948 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
949 {
950 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
951 but the kernel produces corefiles with OSABI=SysV. */
952 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
953 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
954 return FALSE;
955 }
24a5e751
L
956 else
957 {
958 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 959 return FALSE;
24a5e751
L
960 }
961
962 flags = i_ehdrp->e_flags;
30667bf3
AM
963 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
964 {
965 case EFA_PARISC_1_0:
966 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
967 case EFA_PARISC_1_1:
968 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
969 case EFA_PARISC_2_0:
970 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
971 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
973 }
b34976b6 974 return TRUE;
252b5132
RH
975}
976
30667bf3
AM
977/* Create the .plt and .got sections, and set up our hash table
978 short-cuts to various dynamic sections. */
979
b34976b6 980static bfd_boolean
c39a58e6 981elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 982{
83c81bfe 983 struct elf32_hppa_link_hash_table *htab;
875c0872 984 struct elf_link_hash_entry *eh;
edd21aca 985
30667bf3 986 /* Don't try to create the .plt and .got twice. */
83c81bfe 987 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
988 if (htab == NULL)
989 return FALSE;
ce558b89 990 if (htab->etab.splt != NULL)
b34976b6 991 return TRUE;
edd21aca 992
30667bf3
AM
993 /* Call the generic code to do most of the work. */
994 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 995 return FALSE;
252b5132 996
b18e2ae5
AM
997 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
999 eh = elf_hash_table (info)->hgot;
1000 eh->forced_local = 0;
1001 eh->other = STV_DEFAULT;
1002 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1003}
1004
ebe50bae
AM
1005/* Copy the extra info we tack onto an elf_link_hash_entry. */
1006
51b64d56 1007static void
fcfa13d2 1008elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1009 struct elf_link_hash_entry *eh_dir,
1010 struct elf_link_hash_entry *eh_ind)
ebe50bae 1011{
875c0872 1012 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1013
875c0872
DA
1014 hh_dir = hppa_elf_hash_entry (eh_dir);
1015 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1016
875c0872 1017 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1018 {
875c0872 1019 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1020 {
875c0872
DA
1021 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1022 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1023
fcfa13d2 1024 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1025 list. Merge any entries against the same section. */
875c0872 1026 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1027 {
875c0872 1028 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1029
fcfa13d2
AM
1030 for (hdh_q = hh_dir->dyn_relocs;
1031 hdh_q != NULL;
1032 hdh_q = hdh_q->hdh_next)
875c0872 1033 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1034 {
1035#if RELATIVE_DYNRELOCS
875c0872 1036 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1037#endif
875c0872 1038 hdh_q->count += hdh_p->count;
a63e02c7 1039 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1040 break;
1041 }
875c0872 1042 if (hdh_q == NULL)
a63e02c7 1043 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1044 }
875c0872 1045 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1046 }
1047
875c0872
DA
1048 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1049 hh_ind->dyn_relocs = NULL;
ebe50bae 1050 }
ebe50bae 1051
4fc8051d 1052 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1053 && eh_ind->root.type != bfd_link_hash_indirect
1054 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1055 {
1056 /* If called to transfer flags for a weakdef during processing
1057 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM
1059 if (eh_dir->versioned != versioned_hidden)
1060 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
875c0872
DA
1061 eh_dir->ref_regular |= eh_ind->ref_regular;
1062 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1063 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1064 }
4fc8051d 1065 else
9b52905e 1066 {
e81830c5
AM
1067 if (eh_ind->root.type == bfd_link_hash_indirect)
1068 {
1069 hh_dir->plabel |= hh_ind->plabel;
1070 hh_dir->tls_type |= hh_ind->tls_type;
1071 hh_ind->tls_type = GOT_UNKNOWN;
1072 }
9b52905e
NC
1073
1074 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1075 }
1076}
1077
1078static int
1079elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1080 int r_type, int is_local ATTRIBUTE_UNUSED)
1081{
1082 /* For now we don't support linker optimizations. */
1083 return r_type;
ebe50bae
AM
1084}
1085
d45b7d74
DA
1086/* Return a pointer to the local GOT, PLT and TLS reference counts
1087 for ABFD. Returns NULL if the storage allocation fails. */
1088
1089static bfd_signed_vma *
1090hppa32_elf_local_refcounts (bfd *abfd)
1091{
1092 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1093 bfd_signed_vma *local_refcounts;
68ffbac6 1094
d45b7d74
DA
1095 local_refcounts = elf_local_got_refcounts (abfd);
1096 if (local_refcounts == NULL)
1097 {
1098 bfd_size_type size;
1099
1100 /* Allocate space for local GOT and PLT reference
1101 counts. Done this way to save polluting elf_obj_tdata
1102 with another target specific pointer. */
1103 size = symtab_hdr->sh_info;
1104 size *= 2 * sizeof (bfd_signed_vma);
1105 /* Add in space to store the local GOT TLS types. */
1106 size += symtab_hdr->sh_info;
1107 local_refcounts = bfd_zalloc (abfd, size);
1108 if (local_refcounts == NULL)
1109 return NULL;
1110 elf_local_got_refcounts (abfd) = local_refcounts;
1111 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1112 symtab_hdr->sh_info);
1113 }
1114 return local_refcounts;
1115}
1116
1117
30667bf3 1118/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1119 calculate needed space in the global offset table, procedure linkage
1120 table, and dynamic reloc sections. At this point we haven't
1121 necessarily read all the input files. */
252b5132 1122
b34976b6 1123static bfd_boolean
c39a58e6
AM
1124elf32_hppa_check_relocs (bfd *abfd,
1125 struct bfd_link_info *info,
1126 asection *sec,
1127 const Elf_Internal_Rela *relocs)
252b5132 1128{
30667bf3 1129 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1130 struct elf_link_hash_entry **eh_syms;
1131 const Elf_Internal_Rela *rela;
1132 const Elf_Internal_Rela *rela_end;
83c81bfe 1133 struct elf32_hppa_link_hash_table *htab;
30667bf3 1134 asection *sreloc;
9b52905e 1135 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1136
0e1862bb 1137 if (bfd_link_relocatable (info))
b34976b6 1138 return TRUE;
30667bf3 1139
83c81bfe 1140 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1141 if (htab == NULL)
1142 return FALSE;
30667bf3 1143 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1144 eh_syms = elf_sym_hashes (abfd);
30667bf3 1145 sreloc = NULL;
30667bf3 1146
875c0872
DA
1147 rela_end = relocs + sec->reloc_count;
1148 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1149 {
1150 enum {
1151 NEED_GOT = 1,
1152 NEED_PLT = 2,
1153 NEED_DYNREL = 4,
98ceb8ce 1154 PLT_PLABEL = 8
30667bf3 1155 };
edd21aca 1156
30667bf3 1157 unsigned int r_symndx, r_type;
875c0872
DA
1158 struct elf32_hppa_link_hash_entry *hh;
1159 int need_entry = 0;
252b5132 1160
875c0872 1161 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1162
30667bf3 1163 if (r_symndx < symtab_hdr->sh_info)
875c0872 1164 hh = NULL;
30667bf3 1165 else
f7c5057a 1166 {
875c0872 1167 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1168 while (hh->eh.root.type == bfd_link_hash_indirect
1169 || hh->eh.root.type == bfd_link_hash_warning)
1170 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
81fbe831
AM
1171
1172 /* PR15323, ref flags aren't set for references in the same
1173 object. */
bc4e12de 1174 hh->eh.root.non_ir_ref_regular = 1;
f7c5057a 1175 }
252b5132 1176
875c0872 1177 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1178 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1179
30667bf3
AM
1180 switch (r_type)
1181 {
1182 case R_PARISC_DLTIND14F:
1183 case R_PARISC_DLTIND14R:
1184 case R_PARISC_DLTIND21L:
1185 /* This symbol requires a global offset table entry. */
1186 need_entry = NEED_GOT;
30667bf3
AM
1187 break;
1188
1189 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1190 case R_PARISC_PLABEL21L:
1191 case R_PARISC_PLABEL32:
74d1c347 1192 /* If the addend is non-zero, we break badly. */
875c0872 1193 if (rela->r_addend != 0)
49e9d0d3 1194 abort ();
74d1c347
AM
1195
1196 /* If we are creating a shared library, then we need to
1197 create a PLT entry for all PLABELs, because PLABELs with
1198 local symbols may be passed via a pointer to another
1199 object. Additionally, output a dynamic relocation
4dc86686 1200 pointing to the PLT entry.
875c0872 1201
4dc86686
AM
1202 For executables, the original 32-bit ABI allowed two
1203 different styles of PLABELs (function pointers): For
1204 global functions, the PLABEL word points into the .plt
1205 two bytes past a (function address, gp) pair, and for
1206 local functions the PLABEL points directly at the
1207 function. The magic +2 for the first type allows us to
1208 differentiate between the two. As you can imagine, this
1209 is a real pain when it comes to generating code to call
1210 functions indirectly or to compare function pointers.
1211 We avoid the mess by always pointing a PLABEL into the
1212 .plt, even for local functions. */
74d1c347 1213 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1214 break;
1215
1216 case R_PARISC_PCREL12F:
83c81bfe 1217 htab->has_12bit_branch = 1;
067fa4a6
AM
1218 goto branch_common;
1219
30667bf3
AM
1220 case R_PARISC_PCREL17C:
1221 case R_PARISC_PCREL17F:
83c81bfe 1222 htab->has_17bit_branch = 1;
067fa4a6
AM
1223 goto branch_common;
1224
30667bf3 1225 case R_PARISC_PCREL22F:
067fa4a6
AM
1226 htab->has_22bit_branch = 1;
1227 branch_common:
47d89dba
AM
1228 /* Function calls might need to go through the .plt, and
1229 might require long branch stubs. */
875c0872 1230 if (hh == NULL)
30667bf3
AM
1231 {
1232 /* We know local syms won't need a .plt entry, and if
1233 they need a long branch stub we can't guarantee that
1234 we can reach the stub. So just flag an error later
1235 if we're doing a shared link and find we need a long
1236 branch stub. */
1237 continue;
1238 }
1239 else
1240 {
1241 /* Global symbols will need a .plt entry if they remain
1242 global, and in most cases won't need a long branch
1243 stub. Unfortunately, we have to cater for the case
1244 where a symbol is forced local by versioning, or due
1245 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1246 need_entry = NEED_PLT;
a63e02c7 1247 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1248 need_entry = 0;
30667bf3
AM
1249 }
1250 break;
1251
36751eee 1252 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1253 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1254 case R_PARISC_PCREL14F: /* PC relative load/store. */
1255 case R_PARISC_PCREL14R:
1256 case R_PARISC_PCREL17R: /* External branches. */
1257 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1258 case R_PARISC_PCREL32:
30667bf3
AM
1259 /* We don't need to propagate the relocation if linking a
1260 shared object since these are section relative. */
1261 continue;
1262
1263 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1264 case R_PARISC_DPREL14R:
1265 case R_PARISC_DPREL21L:
0e1862bb 1266 if (bfd_link_pic (info))
30667bf3 1267 {
4eca0228 1268 _bfd_error_handler
695344c0 1269 /* xgettext:c-format */
d003868e
AM
1270 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1271 abfd,
30667bf3
AM
1272 elf_hppa_howto_table[r_type].name);
1273 bfd_set_error (bfd_error_bad_value);
b34976b6 1274 return FALSE;
30667bf3
AM
1275 }
1276 /* Fall through. */
1277
1278 case R_PARISC_DIR17F: /* Used for external branches. */
1279 case R_PARISC_DIR17R:
47d89dba
AM
1280 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1281 case R_PARISC_DIR14R:
30667bf3 1282 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1283 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1284 /* We may want to output a dynamic relocation later. */
1285 need_entry = NEED_DYNREL;
1286 break;
1287
1288 /* This relocation describes the C++ object vtable hierarchy.
1289 Reconstruct it for later use during GC. */
1290 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1291 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1292 return FALSE;
30667bf3
AM
1293 continue;
1294
1295 /* This relocation describes which C++ vtable entries are actually
1296 used. Record for later use during GC. */
1297 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1298 BFD_ASSERT (hh != NULL);
1299 if (hh != NULL
1300 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1301 return FALSE;
30667bf3
AM
1302 continue;
1303
9b52905e
NC
1304 case R_PARISC_TLS_GD21L:
1305 case R_PARISC_TLS_GD14R:
1306 case R_PARISC_TLS_LDM21L:
1307 case R_PARISC_TLS_LDM14R:
1308 need_entry = NEED_GOT;
1309 break;
1310
1311 case R_PARISC_TLS_IE21L:
1312 case R_PARISC_TLS_IE14R:
0e1862bb 1313 if (bfd_link_pic (info))
9b52905e
NC
1314 info->flags |= DF_STATIC_TLS;
1315 need_entry = NEED_GOT;
1316 break;
1317
30667bf3
AM
1318 default:
1319 continue;
1320 }
1321
1322 /* Now carry out our orders. */
1323 if (need_entry & NEED_GOT)
1324 {
9b52905e
NC
1325 switch (r_type)
1326 {
1327 default:
1328 tls_type = GOT_NORMAL;
1329 break;
1330 case R_PARISC_TLS_GD21L:
1331 case R_PARISC_TLS_GD14R:
1332 tls_type |= GOT_TLS_GD;
1333 break;
1334 case R_PARISC_TLS_LDM21L:
1335 case R_PARISC_TLS_LDM14R:
1336 tls_type |= GOT_TLS_LDM;
1337 break;
1338 case R_PARISC_TLS_IE21L:
1339 case R_PARISC_TLS_IE14R:
1340 tls_type |= GOT_TLS_IE;
1341 break;
1342 }
1343
30667bf3 1344 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1345 relocation for this entry. */
ce558b89 1346 if (htab->etab.sgot == NULL)
30667bf3 1347 {
a63e02c7 1348 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1349 return FALSE;
30667bf3
AM
1350 }
1351
9b52905e
NC
1352 if (r_type == R_PARISC_TLS_LDM21L
1353 || r_type == R_PARISC_TLS_LDM14R)
4dfe6ac6 1354 htab->tls_ldm_got.refcount += 1;
30667bf3
AM
1355 else
1356 {
9b52905e
NC
1357 if (hh != NULL)
1358 {
1359 hh->eh.got.refcount += 1;
1360 old_tls_type = hh->tls_type;
1361 }
1362 else
1363 {
1364 bfd_signed_vma *local_got_refcounts;
68ffbac6 1365
9b52905e 1366 /* This is a global offset table entry for a local symbol. */
d45b7d74 1367 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
9b52905e 1368 if (local_got_refcounts == NULL)
d45b7d74 1369 return FALSE;
9b52905e
NC
1370 local_got_refcounts[r_symndx] += 1;
1371
1372 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1373 }
1374
1375 tls_type |= old_tls_type;
1376
1377 if (old_tls_type != tls_type)
1378 {
1379 if (hh != NULL)
1380 hh->tls_type = tls_type;
1381 else
1382 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1383 }
1384
30667bf3
AM
1385 }
1386 }
1387
1388 if (need_entry & NEED_PLT)
1389 {
1390 /* If we are creating a shared library, and this is a reloc
1391 against a weak symbol or a global symbol in a dynamic
1392 object, then we will be creating an import stub and a
1393 .plt entry for the symbol. Similarly, on a normal link
1394 to symbols defined in a dynamic object we'll need the
1395 import stub and a .plt entry. We don't know yet whether
1396 the symbol is defined or not, so make an entry anyway and
1397 clean up later in adjust_dynamic_symbol. */
1398 if ((sec->flags & SEC_ALLOC) != 0)
1399 {
875c0872 1400 if (hh != NULL)
30667bf3 1401 {
a63e02c7
DA
1402 hh->eh.needs_plt = 1;
1403 hh->eh.plt.refcount += 1;
74d1c347 1404
36605136
AM
1405 /* If this .plt entry is for a plabel, mark it so
1406 that adjust_dynamic_symbol will keep the entry
1407 even if it appears to be local. */
74d1c347 1408 if (need_entry & PLT_PLABEL)
875c0872 1409 hh->plabel = 1;
74d1c347
AM
1410 }
1411 else if (need_entry & PLT_PLABEL)
1412 {
3ac8354b 1413 bfd_signed_vma *local_got_refcounts;
68fb2e56 1414 bfd_signed_vma *local_plt_refcounts;
74d1c347 1415
d45b7d74 1416 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1417 if (local_got_refcounts == NULL)
d45b7d74 1418 return FALSE;
68fb2e56
AM
1419 local_plt_refcounts = (local_got_refcounts
1420 + symtab_hdr->sh_info);
ebe50bae 1421 local_plt_refcounts[r_symndx] += 1;
30667bf3 1422 }
30667bf3
AM
1423 }
1424 }
1425
98ceb8ce 1426 if (need_entry & NEED_DYNREL)
30667bf3
AM
1427 {
1428 /* Flag this symbol as having a non-got, non-plt reference
1429 so that we generate copy relocs if it turns out to be
1430 dynamic. */
0e1862bb 1431 if (hh != NULL && !bfd_link_pic (info))
a63e02c7 1432 hh->eh.non_got_ref = 1;
30667bf3
AM
1433
1434 /* If we are creating a shared library then we need to copy
1435 the reloc into the shared library. However, if we are
1436 linking with -Bsymbolic, we need only copy absolute
1437 relocs or relocs against symbols that are not defined in
1438 an object we are including in the link. PC- or DP- or
1439 DLT-relative relocs against any local sym or global sym
1440 with DEF_REGULAR set, can be discarded. At this point we
1441 have not seen all the input files, so it is possible that
1442 DEF_REGULAR is not set now but will be set later (it is
1443 never cleared). We account for that possibility below by
98ceb8ce 1444 storing information in the dyn_relocs field of the
30667bf3
AM
1445 hash table entry.
1446
1447 A similar situation to the -Bsymbolic case occurs when
1448 creating shared libraries and symbol visibility changes
1449 render the symbol local.
1450
1451 As it turns out, all the relocs we will be creating here
1452 are absolute, so we cannot remove them on -Bsymbolic
1453 links or visibility changes anyway. A STUB_REL reloc
1454 is absolute too, as in that case it is the reloc in the
1455 stub we will be creating, rather than copying the PCREL
56882138
AM
1456 reloc in the branch.
1457
1458 If on the other hand, we are creating an executable, we
1459 may need to keep relocations for symbols satisfied by a
1460 dynamic library if we manage to avoid copy relocs for the
1461 symbol. */
0e1862bb 1462 if ((bfd_link_pic (info)
446f2863
AM
1463 && (sec->flags & SEC_ALLOC) != 0
1464 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1465 || (hh != NULL
a496fbc8 1466 && (!SYMBOLIC_BIND (info, &hh->eh)
a63e02c7
DA
1467 || hh->eh.root.type == bfd_link_hash_defweak
1468 || !hh->eh.def_regular))))
4fc8051d 1469 || (ELIMINATE_COPY_RELOCS
0e1862bb 1470 && !bfd_link_pic (info)
446f2863 1471 && (sec->flags & SEC_ALLOC) != 0
875c0872 1472 && hh != NULL
a63e02c7
DA
1473 && (hh->eh.root.type == bfd_link_hash_defweak
1474 || !hh->eh.def_regular)))
30667bf3 1475 {
875c0872
DA
1476 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1477 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1478
30667bf3
AM
1479 /* Create a reloc section in dynobj and make room for
1480 this reloc. */
98ceb8ce 1481 if (sreloc == NULL)
30667bf3 1482 {
83bac4b0
NC
1483 sreloc = _bfd_elf_make_dynamic_reloc_section
1484 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1485
98ceb8ce 1486 if (sreloc == NULL)
30667bf3 1487 {
83bac4b0
NC
1488 bfd_set_error (bfd_error_bad_value);
1489 return FALSE;
30667bf3 1490 }
30667bf3
AM
1491 }
1492
98ceb8ce
AM
1493 /* If this is a global symbol, we count the number of
1494 relocations we need for this symbol. */
875c0872 1495 if (hh != NULL)
30667bf3 1496 {
875c0872 1497 hdh_head = &hh->dyn_relocs;
ec338859
AM
1498 }
1499 else
1500 {
1501 /* Track dynamic relocs needed for local syms too.
1502 We really need local syms available to do this
1503 easily. Oh well. */
875c0872 1504 asection *sr;
6edfbbad 1505 void *vpp;
87d72d41 1506 Elf_Internal_Sym *isym;
6edfbbad 1507
87d72d41
AM
1508 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1509 abfd, r_symndx);
1510 if (isym == NULL)
b34976b6 1511 return FALSE;
30667bf3 1512
87d72d41
AM
1513 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1514 if (sr == NULL)
1515 sr = sec;
1516
6edfbbad
DJ
1517 vpp = &elf_section_data (sr)->local_dynrel;
1518 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1519 }
1520
875c0872
DA
1521 hdh_p = *hdh_head;
1522 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1523 {
a63e02c7 1524 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1525 if (hdh_p == NULL)
b34976b6 1526 return FALSE;
a63e02c7 1527 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1528 *hdh_head = hdh_p;
1529 hdh_p->sec = sec;
1530 hdh_p->count = 0;
98ceb8ce 1531#if RELATIVE_DYNRELOCS
875c0872 1532 hdh_p->relative_count = 0;
98ceb8ce 1533#endif
ec338859 1534 }
98ceb8ce 1535
875c0872 1536 hdh_p->count += 1;
98ceb8ce 1537#if RELATIVE_DYNRELOCS
ec338859 1538 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1539 hdh_p->relative_count += 1;
98ceb8ce 1540#endif
30667bf3
AM
1541 }
1542 }
1543 }
edd21aca 1544
b34976b6 1545 return TRUE;
edd21aca
AM
1546}
1547
30667bf3
AM
1548/* Return the section that should be marked against garbage collection
1549 for a given relocation. */
1550
1551static asection *
c39a58e6 1552elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1553 struct bfd_link_info *info,
875c0872
DA
1554 Elf_Internal_Rela *rela,
1555 struct elf_link_hash_entry *hh,
c39a58e6 1556 Elf_Internal_Sym *sym)
30667bf3 1557{
875c0872 1558 if (hh != NULL)
07adf181
AM
1559 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1560 {
1561 case R_PARISC_GNU_VTINHERIT:
1562 case R_PARISC_GNU_VTENTRY:
1563 return NULL;
1564 }
30667bf3 1565
07adf181 1566 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1567}
1568
30667bf3
AM
1569/* Update the got and plt entry reference counts for the section being
1570 removed. */
edd21aca 1571
b34976b6 1572static bfd_boolean
c39a58e6
AM
1573elf32_hppa_gc_sweep_hook (bfd *abfd,
1574 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1575 asection *sec,
1576 const Elf_Internal_Rela *relocs)
edd21aca 1577{
30667bf3 1578 Elf_Internal_Shdr *symtab_hdr;
875c0872 1579 struct elf_link_hash_entry **eh_syms;
30667bf3 1580 bfd_signed_vma *local_got_refcounts;
74d1c347 1581 bfd_signed_vma *local_plt_refcounts;
875c0872 1582 const Elf_Internal_Rela *rela, *relend;
4dfe6ac6 1583 struct elf32_hppa_link_hash_table *htab;
30667bf3 1584
0e1862bb 1585 if (bfd_link_relocatable (info))
7dda2462
TG
1586 return TRUE;
1587
4dfe6ac6
NC
1588 htab = hppa_link_hash_table (info);
1589 if (htab == NULL)
1590 return FALSE;
1591
ec338859 1592 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1593
30667bf3 1594 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1595 eh_syms = elf_sym_hashes (abfd);
30667bf3 1596 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1597 local_plt_refcounts = local_got_refcounts;
1598 if (local_plt_refcounts != NULL)
1599 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1600
30667bf3 1601 relend = relocs + sec->reloc_count;
875c0872 1602 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1603 {
1604 unsigned long r_symndx;
1605 unsigned int r_type;
875c0872 1606 struct elf_link_hash_entry *eh = NULL;
26e41594 1607
875c0872 1608 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1609 if (r_symndx >= symtab_hdr->sh_info)
1610 {
875c0872
DA
1611 struct elf32_hppa_link_hash_entry *hh;
1612 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1613 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1614
875c0872
DA
1615 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1616 while (eh->root.type == bfd_link_hash_indirect
1617 || eh->root.type == bfd_link_hash_warning)
1618 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1619 hh = hppa_elf_hash_entry (eh);
26e41594 1620
a63e02c7 1621 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1622 if (hdh_p->sec == sec)
26e41594
AM
1623 {
1624 /* Everything must go for SEC. */
a63e02c7 1625 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1626 break;
1627 }
1628 }
1629
875c0872 1630 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1631 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1632
26e41594
AM
1633 switch (r_type)
1634 {
1635 case R_PARISC_DLTIND14F:
1636 case R_PARISC_DLTIND14R:
1637 case R_PARISC_DLTIND21L:
9b52905e
NC
1638 case R_PARISC_TLS_GD21L:
1639 case R_PARISC_TLS_GD14R:
1640 case R_PARISC_TLS_IE21L:
1641 case R_PARISC_TLS_IE14R:
875c0872 1642 if (eh != NULL)
26e41594 1643 {
875c0872
DA
1644 if (eh->got.refcount > 0)
1645 eh->got.refcount -= 1;
26e41594
AM
1646 }
1647 else if (local_got_refcounts != NULL)
1648 {
1649 if (local_got_refcounts[r_symndx] > 0)
1650 local_got_refcounts[r_symndx] -= 1;
1651 }
1652 break;
98ceb8ce 1653
9b52905e
NC
1654 case R_PARISC_TLS_LDM21L:
1655 case R_PARISC_TLS_LDM14R:
4dfe6ac6 1656 htab->tls_ldm_got.refcount -= 1;
9b52905e
NC
1657 break;
1658
26e41594
AM
1659 case R_PARISC_PCREL12F:
1660 case R_PARISC_PCREL17C:
1661 case R_PARISC_PCREL17F:
1662 case R_PARISC_PCREL22F:
875c0872 1663 if (eh != NULL)
26e41594 1664 {
875c0872
DA
1665 if (eh->plt.refcount > 0)
1666 eh->plt.refcount -= 1;
26e41594
AM
1667 }
1668 break;
1669
1670 case R_PARISC_PLABEL14R:
1671 case R_PARISC_PLABEL21L:
1672 case R_PARISC_PLABEL32:
875c0872 1673 if (eh != NULL)
26e41594 1674 {
875c0872
DA
1675 if (eh->plt.refcount > 0)
1676 eh->plt.refcount -= 1;
26e41594
AM
1677 }
1678 else if (local_plt_refcounts != NULL)
1679 {
1680 if (local_plt_refcounts[r_symndx] > 0)
1681 local_plt_refcounts[r_symndx] -= 1;
1682 }
1683 break;
1684
1685 default:
1686 break;
1687 }
1688 }
252b5132 1689
b34976b6 1690 return TRUE;
252b5132
RH
1691}
1692
edfc032f
AM
1693/* Support for core dump NOTE sections. */
1694
1695static bfd_boolean
1696elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1697{
1698 int offset;
1699 size_t size;
1700
1701 switch (note->descsz)
1702 {
1703 default:
1704 return FALSE;
1705
1706 case 396: /* Linux/hppa */
1707 /* pr_cursig */
228e534f 1708 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1709
1710 /* pr_pid */
228e534f 1711 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1712
1713 /* pr_reg */
1714 offset = 72;
1715 size = 320;
1716
1717 break;
1718 }
1719
1720 /* Make a ".reg/999" section. */
1721 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1722 size, note->descpos + offset);
1723}
1724
1725static bfd_boolean
1726elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1727{
1728 switch (note->descsz)
1729 {
1730 default:
1731 return FALSE;
1732
1733 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1734 elf_tdata (abfd)->core->program
edfc032f 1735 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1736 elf_tdata (abfd)->core->command
edfc032f
AM
1737 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1738 }
1739
1740 /* Note that for some reason, a spurious space is tacked
1741 onto the end of the args in some (at least one anyway)
1742 implementations, so strip it off if it exists. */
1743 {
228e534f 1744 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1745 int n = strlen (command);
1746
1747 if (0 < n && command[n - 1] == ' ')
1748 command[n - 1] = '\0';
1749 }
1750
1751 return TRUE;
1752}
1753
74d1c347
AM
1754/* Our own version of hide_symbol, so that we can keep plt entries for
1755 plabels. */
1756
1757static void
c39a58e6 1758elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1759 struct elf_link_hash_entry *eh,
c39a58e6 1760 bfd_boolean force_local)
74d1c347 1761{
e5094212
AM
1762 if (force_local)
1763 {
875c0872
DA
1764 eh->forced_local = 1;
1765 if (eh->dynindx != -1)
e5094212 1766 {
875c0872 1767 eh->dynindx = -1;
e5094212 1768 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1769 eh->dynstr_index);
e5094212 1770 }
31fc8a0b
NC
1771
1772 /* PR 16082: Remove version information from hidden symbol. */
1773 eh->verinfo.verdef = NULL;
1774 eh->verinfo.vertree = NULL;
e5094212
AM
1775 }
1776
4340287b
DA
1777 /* STT_GNU_IFUNC symbol must go through PLT. */
1778 if (! hppa_elf_hash_entry (eh)->plabel
1779 && eh->type != STT_GNU_IFUNC)
74d1c347 1780 {
875c0872 1781 eh->needs_plt = 0;
4340287b 1782 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1783 }
1784}
1785
30667bf3
AM
1786/* Adjust a symbol defined by a dynamic object and referenced by a
1787 regular object. The current definition is in some section of the
1788 dynamic object, but we're not including those sections. We have to
1789 change the definition to something the rest of the link can
1790 understand. */
252b5132 1791
b34976b6 1792static bfd_boolean
c39a58e6 1793elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1794 struct elf_link_hash_entry *eh)
252b5132 1795{
83c81bfe 1796 struct elf32_hppa_link_hash_table *htab;
5474d94f 1797 asection *sec, *srel;
30667bf3
AM
1798
1799 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1800 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1801 if (eh->type == STT_FUNC
1802 || eh->needs_plt)
30667bf3 1803 {
4340287b
DA
1804 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1805 The refcounts are not reliable when it has been hidden since
1806 hide_symbol can be called before the plabel flag is set. */
1807 if (hppa_elf_hash_entry (eh)->plabel
1808 && eh->plt.refcount <= 0)
1809 eh->plt.refcount = 1;
1810
875c0872
DA
1811 if (eh->plt.refcount <= 0
1812 || (eh->def_regular
1813 && eh->root.type != bfd_link_hash_defweak
1814 && ! hppa_elf_hash_entry (eh)->plabel
0e1862bb 1815 && (!bfd_link_pic (info) || SYMBOLIC_BIND (info, eh))))
30667bf3
AM
1816 {
1817 /* The .plt entry is not needed when:
1818 a) Garbage collection has removed all references to the
1819 symbol, or
1820 b) We know for certain the symbol is defined in this
74d1c347
AM
1821 object, and it's not a weak definition, nor is the symbol
1822 used by a plabel relocation. Either this object is the
1823 application or we are doing a shared symbolic link. */
1824
875c0872
DA
1825 eh->plt.offset = (bfd_vma) -1;
1826 eh->needs_plt = 0;
30667bf3 1827 }
4dc86686 1828
b34976b6 1829 return TRUE;
30667bf3 1830 }
bbd7ec4a 1831 else
875c0872 1832 eh->plt.offset = (bfd_vma) -1;
edd21aca 1833
30667bf3
AM
1834 /* If this is a weak symbol, and there is a real definition, the
1835 processor independent code will have arranged for us to see the
1836 real definition first, and we can just use the same value. */
875c0872 1837 if (eh->u.weakdef != NULL)
edd21aca 1838 {
875c0872
DA
1839 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1840 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1841 abort ();
875c0872
DA
1842 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1843 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1844 if (ELIMINATE_COPY_RELOCS)
875c0872 1845 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1846 return TRUE;
30667bf3 1847 }
edd21aca 1848
30667bf3
AM
1849 /* This is a reference to a symbol defined by a dynamic object which
1850 is not a function. */
1851
1852 /* If we are creating a shared library, we must presume that the
1853 only references to the symbol are via the global offset table.
1854 For such cases we need not do anything here; the relocations will
1855 be handled correctly by relocate_section. */
0e1862bb 1856 if (bfd_link_pic (info))
b34976b6 1857 return TRUE;
30667bf3
AM
1858
1859 /* If there are no references to this symbol that do not use the
1860 GOT, we don't need to generate a copy reloc. */
875c0872 1861 if (!eh->non_got_ref)
b34976b6 1862 return TRUE;
30667bf3 1863
4fc8051d 1864 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1865 {
875c0872
DA
1866 struct elf32_hppa_link_hash_entry *hh;
1867 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1868
875c0872 1869 hh = hppa_elf_hash_entry (eh);
a63e02c7 1870 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1871 {
875c0872
DA
1872 sec = hdh_p->sec->output_section;
1873 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1874 break;
1875 }
1876
1877 /* If we didn't find any dynamic relocs in read-only sections, then
1878 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1879 if (hdh_p == NULL)
4fc8051d 1880 {
875c0872 1881 eh->non_got_ref = 0;
4fc8051d
AM
1882 return TRUE;
1883 }
ebe50bae
AM
1884 }
1885
30667bf3
AM
1886 /* We must allocate the symbol in our .dynbss section, which will
1887 become part of the .bss section of the executable. There will be
1888 an entry for this symbol in the .dynsym section. The dynamic
1889 object will contain position independent code, so all references
1890 from the dynamic object to this symbol will go through the global
1891 offset table. The dynamic linker will use the .dynsym entry to
1892 determine the address it must put in the global offset table, so
1893 both the dynamic object and the regular object will refer to the
1894 same memory location for the variable. */
1895
3ac8354b 1896 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1897 if (htab == NULL)
1898 return FALSE;
30667bf3
AM
1899
1900 /* We must generate a COPY reloc to tell the dynamic linker to
1901 copy the initial value out of the dynamic object and into the
3ac8354b 1902 runtime process image. */
5474d94f
AM
1903 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1904 {
1905 sec = htab->etab.sdynrelro;
1906 srel = htab->etab.sreldynrelro;
1907 }
1908 else
1909 {
1910 sec = htab->etab.sdynbss;
1911 srel = htab->etab.srelbss;
1912 }
1d7e9d18 1913 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1914 {
5474d94f 1915 srel->size += sizeof (Elf32_External_Rela);
875c0872 1916 eh->needs_copy = 1;
edd21aca 1917 }
252b5132 1918
6cabe1ea 1919 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
252b5132
RH
1920}
1921
46434633 1922/* If EH is undefined, make it dynamic if that makes sense. */
595e0a47
AM
1923
1924static bfd_boolean
46434633
AM
1925ensure_undef_dynamic (struct bfd_link_info *info,
1926 struct elf_link_hash_entry *eh)
595e0a47 1927{
46434633
AM
1928 struct elf_link_hash_table *htab = elf_hash_table (info);
1929
1930 if (htab->dynamic_sections_created
1931 && (eh->root.type == bfd_link_hash_undefweak
1932 || eh->root.type == bfd_link_hash_undefined)
1933 && eh->dynindx == -1
595e0a47
AM
1934 && !eh->forced_local
1935 && eh->type != STT_PARISC_MILLI
595e0a47
AM
1936 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1937 return bfd_elf_link_record_dynamic_symbol (info, eh);
1938 return TRUE;
1939}
1940
e5ee5df1 1941/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1942 ie. plabel entries. */
a8d02d66 1943
b34976b6 1944static bfd_boolean
875c0872 1945allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1946{
1947 struct bfd_link_info *info;
1948 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1949 struct elf32_hppa_link_hash_entry *hh;
1950 asection *sec;
a8d02d66 1951
875c0872 1952 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1953 return TRUE;
a8d02d66 1954
875c0872 1955 info = (struct bfd_link_info *) inf;
9b52905e 1956 hh = hppa_elf_hash_entry (eh);
a8d02d66 1957 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1958 if (htab == NULL)
1959 return FALSE;
1960
a63e02c7 1961 if (htab->etab.dynamic_sections_created
875c0872 1962 && eh->plt.refcount > 0)
e5ee5df1 1963 {
46434633 1964 if (!ensure_undef_dynamic (info, eh))
595e0a47 1965 return FALSE;
e5ee5df1 1966
0e1862bb 1967 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
e5ee5df1 1968 {
067fa4a6
AM
1969 /* Allocate these later. From this point on, h->plabel
1970 means that the plt entry is only used by a plabel.
1971 We'll be using a normal plt entry for this symbol, so
1972 clear the plabel indicator. */
68ffbac6 1973
875c0872 1974 hh->plabel = 0;
e5ee5df1 1975 }
875c0872 1976 else if (hh->plabel)
e5ee5df1
AM
1977 {
1978 /* Make an entry in the .plt section for plabel references
1979 that won't have a .plt entry for other reasons. */
ce558b89 1980 sec = htab->etab.splt;
875c0872
DA
1981 eh->plt.offset = sec->size;
1982 sec->size += PLT_ENTRY_SIZE;
247d6c4c
AM
1983 if (bfd_link_pic (info))
1984 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
a8d02d66
AM
1985 }
1986 else
e5ee5df1
AM
1987 {
1988 /* No .plt entry needed. */
875c0872
DA
1989 eh->plt.offset = (bfd_vma) -1;
1990 eh->needs_plt = 0;
e5ee5df1
AM
1991 }
1992 }
1993 else
1994 {
875c0872
DA
1995 eh->plt.offset = (bfd_vma) -1;
1996 eh->needs_plt = 0;
a8d02d66
AM
1997 }
1998
b34976b6 1999 return TRUE;
a8d02d66
AM
2000}
2001
4dc86686
AM
2002/* Allocate space in .plt, .got and associated reloc sections for
2003 global syms. */
2004
b34976b6 2005static bfd_boolean
875c0872 2006allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
2007{
2008 struct bfd_link_info *info;
83c81bfe 2009 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2010 asection *sec;
2011 struct elf32_hppa_link_hash_entry *hh;
2012 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2013
875c0872 2014 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2015 return TRUE;
73a74a62 2016
c39a58e6 2017 info = inf;
83c81bfe 2018 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2019 if (htab == NULL)
2020 return FALSE;
2021
875c0872 2022 hh = hppa_elf_hash_entry (eh);
68ffbac6 2023
a63e02c7 2024 if (htab->etab.dynamic_sections_created
875c0872
DA
2025 && eh->plt.offset != (bfd_vma) -1
2026 && !hh->plabel
2027 && eh->plt.refcount > 0)
4dc86686 2028 {
e5ee5df1 2029 /* Make an entry in the .plt section. */
ce558b89 2030 sec = htab->etab.splt;
875c0872
DA
2031 eh->plt.offset = sec->size;
2032 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2033
e5ee5df1 2034 /* We also need to make an entry in the .rela.plt section. */
ce558b89 2035 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2036 htab->need_plt_stub = 1;
4dc86686 2037 }
edd21aca 2038
875c0872 2039 if (eh->got.refcount > 0)
4dc86686 2040 {
46434633 2041 if (!ensure_undef_dynamic (info, eh))
595e0a47 2042 return FALSE;
446f2863 2043
ce558b89 2044 sec = htab->etab.sgot;
875c0872
DA
2045 eh->got.offset = sec->size;
2046 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2047 /* R_PARISC_TLS_GD* needs two GOT entries */
2048 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2049 sec->size += GOT_ENTRY_SIZE * 2;
2050 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2051 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2052 if (htab->etab.dynamic_sections_created
0e1862bb 2053 && (bfd_link_pic (info)
875c0872
DA
2054 || (eh->dynindx != -1
2055 && !eh->forced_local)))
ce757d15 2056 {
ce558b89 2057 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e 2058 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
ce558b89 2059 htab->etab.srelgot->size += 2 * sizeof (Elf32_External_Rela);
9b52905e 2060 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
ce558b89 2061 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2062 }
4dc86686
AM
2063 }
2064 else
875c0872 2065 eh->got.offset = (bfd_vma) -1;
30667bf3 2066
875c0872 2067 if (hh->dyn_relocs == NULL)
b34976b6 2068 return TRUE;
30667bf3 2069
98ceb8ce
AM
2070 /* If this is a -Bsymbolic shared link, then we need to discard all
2071 space allocated for dynamic pc-relative relocs against symbols
2072 defined in a regular object. For the normal shared case, discard
2073 space for relocs that have become local due to symbol visibility
2074 changes. */
0e1862bb 2075 if (bfd_link_pic (info))
446f2863 2076 {
46434633
AM
2077 /* Discard relocs on undefined syms with non-default visibility. */
2078 if ((eh->root.type == bfd_link_hash_undefined
2079 || eh->root.type == bfd_link_hash_undefweak)
2080 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2081 hh->dyn_relocs = NULL;
2082
98ceb8ce 2083#if RELATIVE_DYNRELOCS
46434633 2084 else if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2085 {
875c0872 2086 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2087
875c0872 2088 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2089 {
875c0872
DA
2090 hdh_p->count -= hdh_p->relative_count;
2091 hdh_p->relative_count = 0;
2092 if (hdh_p->count == 0)
a63e02c7 2093 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2094 else
a63e02c7 2095 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2096 }
2097 }
2098#endif
4fc8051d 2099
46434633 2100 if (hh->dyn_relocs != NULL)
22d606e9 2101 {
46434633 2102 if (!ensure_undef_dynamic (info, eh))
595e0a47 2103 return FALSE;
22d606e9 2104 }
446f2863 2105 }
98ceb8ce 2106 else
30667bf3 2107 {
98ceb8ce
AM
2108 /* For the non-shared case, discard space for relocs against
2109 symbols which turn out to need copy relocs or are not
2110 dynamic. */
68ffbac6 2111
875c0872 2112 if (!eh->non_got_ref
4fc8051d 2113 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2114 && eh->def_dynamic
2115 && !eh->def_regular)
a63e02c7 2116 || (htab->etab.dynamic_sections_created
875c0872
DA
2117 && (eh->root.type == bfd_link_hash_undefweak
2118 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce 2119 {
46434633 2120 if (!ensure_undef_dynamic (info, eh))
595e0a47 2121 return FALSE;
98ceb8ce 2122
46434633
AM
2123 if (eh->dynindx == -1)
2124 hh->dyn_relocs = NULL;
98ceb8ce 2125 }
46434633
AM
2126 else
2127 hh->dyn_relocs = NULL;
30667bf3 2128 }
30667bf3 2129
98ceb8ce 2130 /* Finally, allocate space. */
a63e02c7 2131 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2132 {
875c0872
DA
2133 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2134 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2135 }
30667bf3 2136
b34976b6 2137 return TRUE;
30667bf3 2138}
30667bf3 2139
d5c73c2f
AM
2140/* This function is called via elf_link_hash_traverse to force
2141 millicode symbols local so they do not end up as globals in the
2142 dynamic symbol table. We ought to be able to do this in
2143 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2144 for all dynamic symbols. Arguably, this is a bug in
2145 elf_adjust_dynamic_symbol. */
2146
b34976b6 2147static bfd_boolean
875c0872 2148clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2149 struct bfd_link_info *info)
d5c73c2f 2150{
875c0872
DA
2151 if (eh->type == STT_PARISC_MILLI
2152 && !eh->forced_local)
e0522e89 2153 {
875c0872 2154 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2155 }
b34976b6 2156 return TRUE;
d5c73c2f
AM
2157}
2158
98ceb8ce
AM
2159/* Find any dynamic relocs that apply to read-only sections. */
2160
b34976b6 2161static bfd_boolean
875c0872 2162readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2163{
875c0872
DA
2164 struct elf32_hppa_link_hash_entry *hh;
2165 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2166
875c0872 2167 hh = hppa_elf_hash_entry (eh);
a63e02c7 2168 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2169 {
875c0872 2170 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2171
875c0872 2172 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2173 {
c39a58e6 2174 struct bfd_link_info *info = inf;
98ceb8ce
AM
2175
2176 info->flags |= DF_TEXTREL;
2177
2178 /* Not an error, just cut short the traversal. */
b34976b6 2179 return FALSE;
98ceb8ce
AM
2180 }
2181 }
b34976b6 2182 return TRUE;
98ceb8ce
AM
2183}
2184
30667bf3
AM
2185/* Set the sizes of the dynamic sections. */
2186
b34976b6 2187static bfd_boolean
c39a58e6
AM
2188elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2189 struct bfd_link_info *info)
30667bf3 2190{
83c81bfe 2191 struct elf32_hppa_link_hash_table *htab;
30667bf3 2192 bfd *dynobj;
98ceb8ce 2193 bfd *ibfd;
875c0872 2194 asection *sec;
b34976b6 2195 bfd_boolean relocs;
30667bf3 2196
83c81bfe 2197 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2198 if (htab == NULL)
2199 return FALSE;
2200
a63e02c7 2201 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2202 if (dynobj == NULL)
2203 abort ();
30667bf3 2204
a63e02c7 2205 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2206 {
2207 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2208 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2209 {
3d4d4302 2210 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2211 if (sec == NULL)
49e9d0d3 2212 abort ();
875c0872
DA
2213 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2214 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2215 }
74d1c347 2216
d5c73c2f 2217 /* Force millicode symbols local. */
a63e02c7 2218 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2219 clobber_millicode_symbols,
2220 info);
68fb2e56 2221 }
d5c73c2f 2222
98ceb8ce
AM
2223 /* Set up .got and .plt offsets for local syms, and space for local
2224 dynamic relocs. */
c72f2fb2 2225 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2226 {
2227 bfd_signed_vma *local_got;
2228 bfd_signed_vma *end_local_got;
2229 bfd_signed_vma *local_plt;
2230 bfd_signed_vma *end_local_plt;
2231 bfd_size_type locsymcount;
2232 Elf_Internal_Shdr *symtab_hdr;
2233 asection *srel;
9b52905e 2234 char *local_tls_type;
74d1c347 2235
98ceb8ce 2236 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2237 continue;
4dc86686 2238
875c0872 2239 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2240 {
875c0872 2241 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2242
875c0872
DA
2243 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2244 elf_section_data (sec)->local_dynrel);
2245 hdh_p != NULL;
a63e02c7 2246 hdh_p = hdh_p->hdh_next)
98ceb8ce 2247 {
875c0872
DA
2248 if (!bfd_is_abs_section (hdh_p->sec)
2249 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2250 {
2251 /* Input section has been discarded, either because
2252 it is a copy of a linkonce section or due to
2253 linker script /DISCARD/, so we'll be discarding
2254 the relocs too. */
2255 }
875c0872 2256 else if (hdh_p->count != 0)
ec338859 2257 {
875c0872
DA
2258 srel = elf_section_data (hdh_p->sec)->sreloc;
2259 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2260 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2261 info->flags |= DF_TEXTREL;
ec338859 2262 }
98ceb8ce
AM
2263 }
2264 }
2265
2266 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2267 if (!local_got)
2268 continue;
74d1c347 2269
98ceb8ce 2270 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2271 locsymcount = symtab_hdr->sh_info;
2272 end_local_got = local_got + locsymcount;
9b52905e 2273 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
ce558b89
AM
2274 sec = htab->etab.sgot;
2275 srel = htab->etab.srelgot;
68fb2e56
AM
2276 for (; local_got < end_local_got; ++local_got)
2277 {
2278 if (*local_got > 0)
4dc86686 2279 {
875c0872
DA
2280 *local_got = sec->size;
2281 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2282 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2283 sec->size += 2 * GOT_ENTRY_SIZE;
2284 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2285 sec->size += GOT_ENTRY_SIZE;
0e1862bb 2286 if (bfd_link_pic (info))
9b52905e
NC
2287 {
2288 srel->size += sizeof (Elf32_External_Rela);
2289 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2290 srel->size += 2 * sizeof (Elf32_External_Rela);
2291 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2292 srel->size += sizeof (Elf32_External_Rela);
2293 }
4dc86686 2294 }
68fb2e56
AM
2295 else
2296 *local_got = (bfd_vma) -1;
9b52905e
NC
2297
2298 ++local_tls_type;
68fb2e56 2299 }
74d1c347 2300
68fb2e56
AM
2301 local_plt = end_local_got;
2302 end_local_plt = local_plt + locsymcount;
a63e02c7 2303 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2304 {
2305 /* Won't be used, but be safe. */
2306 for (; local_plt < end_local_plt; ++local_plt)
2307 *local_plt = (bfd_vma) -1;
2308 }
2309 else
2310 {
ce558b89
AM
2311 sec = htab->etab.splt;
2312 srel = htab->etab.srelplt;
74d1c347
AM
2313 for (; local_plt < end_local_plt; ++local_plt)
2314 {
2315 if (*local_plt > 0)
2316 {
875c0872
DA
2317 *local_plt = sec->size;
2318 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2319 if (bfd_link_pic (info))
eea6121a 2320 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2321 }
2322 else
2323 *local_plt = (bfd_vma) -1;
2324 }
2325 }
30667bf3 2326 }
68ffbac6 2327
9b52905e
NC
2328 if (htab->tls_ldm_got.refcount > 0)
2329 {
68ffbac6 2330 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e 2331 R_PARISC_TLS_DTPMOD32 relocs. */
ce558b89
AM
2332 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2333 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2334 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2335 }
2336 else
2337 htab->tls_ldm_got.offset = -1;
30667bf3 2338
e5ee5df1
AM
2339 /* Do all the .plt entries without relocs first. The dynamic linker
2340 uses the last .plt reloc to find the end of the .plt (and hence
2341 the start of the .got) for lazy linking. */
a63e02c7 2342 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2343
98ceb8ce
AM
2344 /* Allocate global sym .plt and .got entries, and space for global
2345 sym dynamic relocs. */
a63e02c7 2346 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2347
2348 /* The check_relocs and adjust_dynamic_symbol entry points have
2349 determined the sizes of the various dynamic sections. Allocate
2350 memory for them. */
b34976b6 2351 relocs = FALSE;
875c0872 2352 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2353 {
875c0872 2354 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2355 continue;
2356
ce558b89 2357 if (sec == htab->etab.splt)
68fb2e56 2358 {
83c81bfe 2359 if (htab->need_plt_stub)
68fb2e56
AM
2360 {
2361 /* Make space for the plt stub at the end of the .plt
2362 section. We want this stub right at the end, up
2363 against the .got section. */
ce558b89 2364 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
875c0872 2365 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2366 bfd_size_type mask;
30667bf3 2367
68fb2e56 2368 if (gotalign > pltalign)
a253d456 2369 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2370 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2371 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2372 }
2373 }
ce558b89 2374 else if (sec == htab->etab.sgot
5474d94f
AM
2375 || sec == htab->etab.sdynbss
2376 || sec == htab->etab.sdynrelro)
68fb2e56 2377 ;
0112cd26 2378 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2379 {
875c0872 2380 if (sec->size != 0)
30667bf3 2381 {
4e12ff7f
AM
2382 /* Remember whether there are any reloc sections other
2383 than .rela.plt. */
ce558b89 2384 if (sec != htab->etab.srelplt)
b34976b6 2385 relocs = TRUE;
47d89dba 2386
30667bf3
AM
2387 /* We use the reloc_count field as a counter if we need
2388 to copy relocs into the output file. */
875c0872 2389 sec->reloc_count = 0;
30667bf3
AM
2390 }
2391 }
30667bf3
AM
2392 else
2393 {
2394 /* It's not one of our sections, so don't allocate space. */
2395 continue;
2396 }
2397
875c0872 2398 if (sec->size == 0)
30667bf3
AM
2399 {
2400 /* If we don't need this section, strip it from the
2401 output file. This is mostly to handle .rela.bss and
2402 .rela.plt. We must create both sections in
2403 create_dynamic_sections, because they must be created
2404 before the linker maps input sections to output
2405 sections. The linker does that before
2406 adjust_dynamic_symbol is called, and it is that
2407 function which decides whether anything needs to go
2408 into these sections. */
875c0872 2409 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2410 continue;
2411 }
2412
c456f082
AM
2413 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2414 continue;
2415
30667bf3
AM
2416 /* Allocate memory for the section contents. Zero it, because
2417 we may not fill in all the reloc sections. */
875c0872 2418 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2419 if (sec->contents == NULL)
b34976b6 2420 return FALSE;
30667bf3
AM
2421 }
2422
a63e02c7 2423 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2424 {
2425 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2426 actually has nothing to do with the PLT, it is how we
2427 communicate the LTP value of a load module to the dynamic
2428 linker. */
dc810e39 2429#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2430 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2431
2432 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2433 return FALSE;
30667bf3
AM
2434
2435 /* Add some entries to the .dynamic section. We fill in the
2436 values later, in elf32_hppa_finish_dynamic_sections, but we
2437 must add the entries now so that we get the correct size for
2438 the .dynamic section. The DT_DEBUG entry is filled in by the
2439 dynamic linker and used by the debugger. */
0e1862bb 2440 if (bfd_link_executable (info))
30667bf3 2441 {
dc810e39 2442 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2443 return FALSE;
30667bf3
AM
2444 }
2445
ce558b89 2446 if (htab->etab.srelplt->size != 0)
30667bf3 2447 {
dc810e39
AM
2448 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2449 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2450 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2451 return FALSE;
30667bf3
AM
2452 }
2453
2454 if (relocs)
2455 {
dc810e39
AM
2456 if (!add_dynamic_entry (DT_RELA, 0)
2457 || !add_dynamic_entry (DT_RELASZ, 0)
2458 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2459 return FALSE;
30667bf3 2460
98ceb8ce
AM
2461 /* If any dynamic relocs apply to a read-only section,
2462 then we need a DT_TEXTREL entry. */
248866a8 2463 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2464 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2465
2466 if ((info->flags & DF_TEXTREL) != 0)
2467 {
2468 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2469 return FALSE;
98ceb8ce 2470 }
30667bf3
AM
2471 }
2472 }
dc810e39 2473#undef add_dynamic_entry
30667bf3 2474
b34976b6 2475 return TRUE;
30667bf3
AM
2476}
2477
30667bf3
AM
2478/* External entry points for sizing and building linker stubs. */
2479
b4655ea9
AM
2480/* Set up various things so that we can make a list of input sections
2481 for each output section included in the link. Returns -1 on error,
cedb70c5 2482 0 when no stubs will be needed, and 1 on success. */
30667bf3 2483
b4655ea9 2484int
c39a58e6 2485elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2486{
2487 bfd *input_bfd;
b4655ea9 2488 unsigned int bfd_count;
7292b3ac 2489 unsigned int top_id, top_index;
30667bf3 2490 asection *section;
25f72752 2491 asection **input_list, **list;
dc810e39 2492 bfd_size_type amt;
b4655ea9 2493 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2494
4dfe6ac6
NC
2495 if (htab == NULL)
2496 return -1;
2497
1badb539
AM
2498 /* Count the number of input BFDs and find the top input section id. */
2499 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2500 input_bfd != NULL;
c72f2fb2 2501 input_bfd = input_bfd->link.next)
30667bf3
AM
2502 {
2503 bfd_count += 1;
25f72752
AM
2504 for (section = input_bfd->sections;
2505 section != NULL;
2506 section = section->next)
2507 {
2508 if (top_id < section->id)
2509 top_id = section->id;
2510 }
30667bf3 2511 }
b4655ea9 2512 htab->bfd_count = bfd_count;
30667bf3 2513
dc810e39 2514 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2515 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2516 if (htab->stub_group == NULL)
b4655ea9 2517 return -1;
1badb539 2518
b4655ea9 2519 /* We can't use output_bfd->section_count here to find the top output
1badb539 2520 section index as some sections may have been removed, and
8423293d 2521 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2522 for (section = output_bfd->sections, top_index = 0;
2523 section != NULL;
2524 section = section->next)
2525 {
2526 if (top_index < section->index)
2527 top_index = section->index;
2528 }
2529
b4655ea9 2530 htab->top_index = top_index;
dc810e39 2531 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2532 input_list = bfd_malloc (amt);
b4655ea9 2533 htab->input_list = input_list;
25f72752 2534 if (input_list == NULL)
b4655ea9 2535 return -1;
25f72752 2536
1badb539
AM
2537 /* For sections we aren't interested in, mark their entries with a
2538 value we can check later. */
2539 list = input_list + top_index;
2540 do
2541 *list = bfd_abs_section_ptr;
2542 while (list-- != input_list);
2543
2544 for (section = output_bfd->sections;
2545 section != NULL;
2546 section = section->next)
2547 {
47d89dba 2548 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2549 input_list[section->index] = NULL;
2550 }
2551
b4655ea9
AM
2552 return 1;
2553}
2554
2555/* The linker repeatedly calls this function for each input section,
2556 in the order that input sections are linked into output sections.
2557 Build lists of input sections to determine groupings between which
2558 we may insert linker stubs. */
2559
2560void
c39a58e6 2561elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2562{
2563 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2564
4dfe6ac6
NC
2565 if (htab == NULL)
2566 return;
2567
b4655ea9 2568 if (isec->output_section->index <= htab->top_index)
25f72752 2569 {
b4655ea9
AM
2570 asection **list = htab->input_list + isec->output_section->index;
2571 if (*list != bfd_abs_section_ptr)
25f72752 2572 {
b4655ea9 2573 /* Steal the link_sec pointer for our list. */
83c81bfe 2574#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2575 /* This happens to make the list in reverse order,
2576 which is what we want. */
2577 PREV_SEC (isec) = *list;
2578 *list = isec;
25f72752
AM
2579 }
2580 }
b4655ea9 2581}
25f72752 2582
b4655ea9
AM
2583/* See whether we can group stub sections together. Grouping stub
2584 sections may result in fewer stubs. More importantly, we need to
2585 put all .init* and .fini* stubs at the beginning of the .init or
2586 .fini output sections respectively, because glibc splits the
2587 _init and _fini functions into multiple parts. Putting a stub in
2588 the middle of a function is not a good idea. */
2589
2590static void
c39a58e6
AM
2591group_sections (struct elf32_hppa_link_hash_table *htab,
2592 bfd_size_type stub_group_size,
2593 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2594{
2595 asection **list = htab->input_list + htab->top_index;
1badb539 2596 do
25f72752
AM
2597 {
2598 asection *tail = *list;
1badb539
AM
2599 if (tail == bfd_abs_section_ptr)
2600 continue;
25f72752
AM
2601 while (tail != NULL)
2602 {
2603 asection *curr;
2604 asection *prev;
2605 bfd_size_type total;
00b28bb0 2606 bfd_boolean big_sec;
25f72752
AM
2607
2608 curr = tail;
eea6121a 2609 total = tail->size;
00b28bb0
AM
2610 big_sec = total >= stub_group_size;
2611
25f72752
AM
2612 while ((prev = PREV_SEC (curr)) != NULL
2613 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2614 < stub_group_size))
25f72752
AM
2615 curr = prev;
2616
2617 /* OK, the size from the start of CURR to the end is less
a248e267 2618 than 240000 bytes and thus can be handled by one stub
25f72752 2619 section. (or the tail section is itself larger than
a248e267 2620 240000 bytes, in which case we may be toast.)
25f72752
AM
2621 We should really be keeping track of the total size of
2622 stubs added here, as stubs contribute to the final output
2623 section size. That's a little tricky, and this way will
a248e267
AM
2624 only break if stubs added total more than 22144 bytes, or
2625 2768 long branch stubs. It seems unlikely for more than
2626 2768 different functions to be called, especially from
2627 code only 240000 bytes long. This limit used to be
2628 250000, but c++ code tends to generate lots of little
2629 functions, and sometimes violated the assumption. */
25f72752
AM
2630 do
2631 {
2632 prev = PREV_SEC (tail);
2633 /* Set up this stub group. */
83c81bfe 2634 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2635 }
2636 while (tail != curr && (tail = prev) != NULL);
2637
a248e267 2638 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2639 bytes before the stub section can be handled by it too.
2640 Don't do this if we have a really large section after the
2641 stubs, as adding more stubs increases the chance that
2642 branches may not reach into the stub section. */
2643 if (!stubs_always_before_branch && !big_sec)
25f72752 2644 {
47d89dba
AM
2645 total = 0;
2646 while (prev != NULL
2647 && ((total += tail->output_offset - prev->output_offset)
2648 < stub_group_size))
2649 {
2650 tail = prev;
2651 prev = PREV_SEC (tail);
83c81bfe 2652 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2653 }
25f72752
AM
2654 }
2655 tail = prev;
2656 }
2657 }
b4655ea9
AM
2658 while (list-- != htab->input_list);
2659 free (htab->input_list);
1badb539 2660#undef PREV_SEC
b4655ea9
AM
2661}
2662
2663/* Read in all local syms for all input bfds, and create hash entries
2664 for export stubs if we are building a multi-subspace shared lib.
2665 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2666
2667static int
c39a58e6 2668get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2669{
2670 unsigned int bfd_indx;
2671 Elf_Internal_Sym *local_syms, **all_local_syms;
2672 int stub_changed = 0;
2673 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2674
4dfe6ac6
NC
2675 if (htab == NULL)
2676 return -1;
2677
30667bf3
AM
2678 /* We want to read in symbol extension records only once. To do this
2679 we need to read in the local symbols in parallel and save them for
2680 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2681 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2682 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2683 htab->all_local_syms = all_local_syms;
30667bf3 2684 if (all_local_syms == NULL)
b4655ea9 2685 return -1;
30667bf3
AM
2686
2687 /* Walk over all the input BFDs, swapping in local symbols.
2688 If we are creating a shared library, create hash entries for the
2689 export stubs. */
b4655ea9 2690 for (bfd_indx = 0;
30667bf3 2691 input_bfd != NULL;
c72f2fb2 2692 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2693 {
2694 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2695
252b5132
RH
2696 /* We'll need the symbol table in a second. */
2697 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2698 if (symtab_hdr->sh_info == 0)
2699 continue;
2700
6cdc0ccc
AM
2701 /* We need an array of the local symbols attached to the input bfd. */
2702 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2703 if (local_syms == NULL)
edd21aca 2704 {
6cdc0ccc
AM
2705 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2706 symtab_hdr->sh_info, 0,
2707 NULL, NULL, NULL);
2708 /* Cache them for elf_link_input_bfd. */
2709 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2710 }
6cdc0ccc
AM
2711 if (local_syms == NULL)
2712 return -1;
edd21aca 2713
6cdc0ccc 2714 all_local_syms[bfd_indx] = local_syms;
edd21aca 2715
0e1862bb 2716 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2717 {
875c0872
DA
2718 struct elf_link_hash_entry **eh_syms;
2719 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2720 unsigned int symcount;
2721
2722 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2723 - symtab_hdr->sh_info);
875c0872
DA
2724 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2725 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2726
2727 /* Look through the global syms for functions; We need to
2728 build export stubs for all globally visible functions. */
875c0872 2729 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2730 {
875c0872 2731 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2732
875c0872 2733 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2734
a63e02c7
DA
2735 while (hh->eh.root.type == bfd_link_hash_indirect
2736 || hh->eh.root.type == bfd_link_hash_warning)
2737 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2738
2739 /* At this point in the link, undefined syms have been
2740 resolved, so we need to check that the symbol was
2741 defined in this BFD. */
a63e02c7
DA
2742 if ((hh->eh.root.type == bfd_link_hash_defined
2743 || hh->eh.root.type == bfd_link_hash_defweak)
2744 && hh->eh.type == STT_FUNC
2745 && hh->eh.root.u.def.section->output_section != NULL
2746 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2747 == output_bfd)
a63e02c7
DA
2748 && hh->eh.root.u.def.section->owner == input_bfd
2749 && hh->eh.def_regular
2750 && !hh->eh.forced_local
2751 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2752 {
2753 asection *sec;
2754 const char *stub_name;
875c0872 2755 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2756
a63e02c7 2757 sec = hh->eh.root.u.def.section;
9b52905e 2758 stub_name = hh_name (hh);
a63e02c7 2759 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2760 stub_name,
b34976b6 2761 FALSE, FALSE);
875c0872 2762 if (hsh == NULL)
30667bf3 2763 {
875c0872
DA
2764 hsh = hppa_add_stub (stub_name, sec, htab);
2765 if (!hsh)
b4655ea9 2766 return -1;
30667bf3 2767
a63e02c7
DA
2768 hsh->target_value = hh->eh.root.u.def.value;
2769 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2770 hsh->stub_type = hppa_stub_export;
a63e02c7 2771 hsh->hh = hh;
30667bf3
AM
2772 stub_changed = 1;
2773 }
2774 else
2775 {
695344c0 2776 /* xgettext:c-format */
4eca0228
AM
2777 _bfd_error_handler (_("%B: duplicate export stub %s"),
2778 input_bfd, stub_name);
30667bf3
AM
2779 }
2780 }
2781 }
30667bf3
AM
2782 }
2783 }
edd21aca 2784
b4655ea9
AM
2785 return stub_changed;
2786}
2787
2788/* Determine and set the size of the stub section for a final link.
2789
2790 The basic idea here is to examine all the relocations looking for
2791 PC-relative calls to a target that is unreachable with a "bl"
2792 instruction. */
2793
b34976b6 2794bfd_boolean
c39a58e6
AM
2795elf32_hppa_size_stubs
2796 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2797 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2798 asection * (*add_stub_section) (const char *, asection *),
2799 void (*layout_sections_again) (void))
b4655ea9
AM
2800{
2801 bfd_size_type stub_group_size;
b34976b6
AM
2802 bfd_boolean stubs_always_before_branch;
2803 bfd_boolean stub_changed;
b4655ea9
AM
2804 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2805
4dfe6ac6
NC
2806 if (htab == NULL)
2807 return FALSE;
2808
b4655ea9
AM
2809 /* Stash our params away. */
2810 htab->stub_bfd = stub_bfd;
2811 htab->multi_subspace = multi_subspace;
2812 htab->add_stub_section = add_stub_section;
2813 htab->layout_sections_again = layout_sections_again;
2814 stubs_always_before_branch = group_size < 0;
2815 if (group_size < 0)
2816 stub_group_size = -group_size;
2817 else
2818 stub_group_size = group_size;
2819 if (stub_group_size == 1)
2820 {
2821 /* Default values. */
acc990f2
AM
2822 if (stubs_always_before_branch)
2823 {
2824 stub_group_size = 7680000;
2825 if (htab->has_17bit_branch || htab->multi_subspace)
2826 stub_group_size = 240000;
2827 if (htab->has_12bit_branch)
2828 stub_group_size = 7500;
2829 }
2830 else
2831 {
2832 stub_group_size = 6971392;
2833 if (htab->has_17bit_branch || htab->multi_subspace)
2834 stub_group_size = 217856;
2835 if (htab->has_12bit_branch)
2836 stub_group_size = 6808;
2837 }
b4655ea9
AM
2838 }
2839
2840 group_sections (htab, stub_group_size, stubs_always_before_branch);
2841
2842 switch (get_local_syms (output_bfd, info->input_bfds, info))
2843 {
2844 default:
2845 if (htab->all_local_syms)
2846 goto error_ret_free_local;
b34976b6 2847 return FALSE;
b4655ea9
AM
2848
2849 case 0:
b34976b6 2850 stub_changed = FALSE;
b4655ea9
AM
2851 break;
2852
2853 case 1:
b34976b6 2854 stub_changed = TRUE;
b4655ea9
AM
2855 break;
2856 }
2857
edd21aca
AM
2858 while (1)
2859 {
b4655ea9
AM
2860 bfd *input_bfd;
2861 unsigned int bfd_indx;
30667bf3
AM
2862 asection *stub_sec;
2863
25f72752 2864 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2865 input_bfd != NULL;
c72f2fb2 2866 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2867 {
2868 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2869 asection *section;
2870 Elf_Internal_Sym *local_syms;
30667bf3
AM
2871
2872 /* We'll need the symbol table in a second. */
2873 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2874 if (symtab_hdr->sh_info == 0)
2875 continue;
2876
b4655ea9 2877 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2878
2879 /* Walk over each section attached to the input bfd. */
2880 for (section = input_bfd->sections;
2881 section != NULL;
25f72752 2882 section = section->next)
30667bf3 2883 {
30667bf3
AM
2884 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2885
2886 /* If there aren't any relocs, then there's nothing more
2887 to do. */
2888 if ((section->flags & SEC_RELOC) == 0
2889 || section->reloc_count == 0)
2890 continue;
2891
25f72752
AM
2892 /* If this section is a link-once section that will be
2893 discarded, then don't create any stubs. */
2894 if (section->output_section == NULL
2895 || section->output_section->owner != output_bfd)
2896 continue;
2897
1e2f5b6e
AM
2898 /* Get the relocs. */
2899 internal_relocs
c39a58e6 2900 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2901 info->keep_memory);
30667bf3 2902 if (internal_relocs == NULL)
1e2f5b6e 2903 goto error_ret_free_local;
30667bf3
AM
2904
2905 /* Now examine each relocation. */
2906 irela = internal_relocs;
2907 irelaend = irela + section->reloc_count;
2908 for (; irela < irelaend; irela++)
2909 {
2910 unsigned int r_type, r_indx;
2911 enum elf32_hppa_stub_type stub_type;
875c0872 2912 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2913 asection *sym_sec;
2914 bfd_vma sym_value;
2915 bfd_vma destination;
875c0872 2916 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2917 char *stub_name;
25f72752 2918 const asection *id_sec;
30667bf3
AM
2919
2920 r_type = ELF32_R_TYPE (irela->r_info);
2921 r_indx = ELF32_R_SYM (irela->r_info);
2922
2923 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2924 {
2925 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2926 error_ret_free_internal:
2927 if (elf_section_data (section)->relocs == NULL)
2928 free (internal_relocs);
2929 goto error_ret_free_local;
30667bf3
AM
2930 }
2931
2932 /* Only look for stubs on call instructions. */
2933 if (r_type != (unsigned int) R_PARISC_PCREL12F
2934 && r_type != (unsigned int) R_PARISC_PCREL17F
2935 && r_type != (unsigned int) R_PARISC_PCREL22F)
2936 continue;
2937
2938 /* Now determine the call target, its name, value,
2939 section. */
2940 sym_sec = NULL;
2941 sym_value = 0;
2942 destination = 0;
875c0872 2943 hh = NULL;
30667bf3
AM
2944 if (r_indx < symtab_hdr->sh_info)
2945 {
2946 /* It's a local symbol. */
2947 Elf_Internal_Sym *sym;
2948 Elf_Internal_Shdr *hdr;
4fbb74a6 2949 unsigned int shndx;
30667bf3
AM
2950
2951 sym = local_syms + r_indx;
30667bf3
AM
2952 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2953 sym_value = sym->st_value;
4fbb74a6
AM
2954 shndx = sym->st_shndx;
2955 if (shndx < elf_numsections (input_bfd))
2956 {
2957 hdr = elf_elfsections (input_bfd)[shndx];
2958 sym_sec = hdr->bfd_section;
2959 destination = (sym_value + irela->r_addend
2960 + sym_sec->output_offset
2961 + sym_sec->output_section->vma);
2962 }
30667bf3
AM
2963 }
2964 else
2965 {
2966 /* It's an external symbol. */
2967 int e_indx;
2968
2969 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2970 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2971
a63e02c7
DA
2972 while (hh->eh.root.type == bfd_link_hash_indirect
2973 || hh->eh.root.type == bfd_link_hash_warning)
2974 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2975
a63e02c7
DA
2976 if (hh->eh.root.type == bfd_link_hash_defined
2977 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2978 {
a63e02c7
DA
2979 sym_sec = hh->eh.root.u.def.section;
2980 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2981 if (sym_sec->output_section != NULL)
2982 destination = (sym_value + irela->r_addend
2983 + sym_sec->output_offset
2984 + sym_sec->output_section->vma);
2985 }
a63e02c7 2986 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 2987 {
0e1862bb 2988 if (! bfd_link_pic (info))
c432ba1a
AM
2989 continue;
2990 }
a63e02c7 2991 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2992 {
59c2e50f 2993 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2994 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2995 == STV_DEFAULT)
a63e02c7 2996 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
2997 continue;
2998 }
30667bf3
AM
2999 else
3000 {
3001 bfd_set_error (bfd_error_bad_value);
3002 goto error_ret_free_internal;
3003 }
3004 }
3005
3006 /* Determine what (if any) linker stub is needed. */
875c0872 3007 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3008 destination, info);
30667bf3
AM
3009 if (stub_type == hppa_stub_none)
3010 continue;
3011
25f72752 3012 /* Support for grouping stub sections. */
83c81bfe 3013 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3014
30667bf3 3015 /* Get the name of this stub. */
875c0872 3016 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3017 if (!stub_name)
3018 goto error_ret_free_internal;
3019
a63e02c7 3020 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3021 stub_name,
b34976b6 3022 FALSE, FALSE);
875c0872 3023 if (hsh != NULL)
30667bf3
AM
3024 {
3025 /* The proper stub has already been created. */
3026 free (stub_name);
3027 continue;
3028 }
3029
875c0872
DA
3030 hsh = hppa_add_stub (stub_name, section, htab);
3031 if (hsh == NULL)
30667bf3
AM
3032 {
3033 free (stub_name);
1e2f5b6e 3034 goto error_ret_free_internal;
30667bf3
AM
3035 }
3036
875c0872
DA
3037 hsh->target_value = sym_value;
3038 hsh->target_section = sym_sec;
3039 hsh->stub_type = stub_type;
0e1862bb 3040 if (bfd_link_pic (info))
30667bf3
AM
3041 {
3042 if (stub_type == hppa_stub_import)
875c0872 3043 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3044 else if (stub_type == hppa_stub_long_branch)
875c0872 3045 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3046 }
a63e02c7 3047 hsh->hh = hh;
b34976b6 3048 stub_changed = TRUE;
30667bf3
AM
3049 }
3050
3051 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3052 if (elf_section_data (section)->relocs == NULL)
3053 free (internal_relocs);
30667bf3
AM
3054 }
3055 }
3056
3057 if (!stub_changed)
3058 break;
3059
3060 /* OK, we've added some stubs. Find out the new size of the
3061 stub sections. */
83c81bfe 3062 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3063 stub_sec != NULL;
3064 stub_sec = stub_sec->next)
a464198b
AM
3065 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3066 stub_sec->size = 0;
74d1c347 3067
a63e02c7 3068 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3069
30667bf3 3070 /* Ask the linker to do its stuff. */
83c81bfe 3071 (*htab->layout_sections_again) ();
b34976b6 3072 stub_changed = FALSE;
30667bf3
AM
3073 }
3074
6cdc0ccc 3075 free (htab->all_local_syms);
b34976b6 3076 return TRUE;
30667bf3
AM
3077
3078 error_ret_free_local:
b4655ea9 3079 free (htab->all_local_syms);
b34976b6 3080 return FALSE;
30667bf3
AM
3081}
3082
30667bf3
AM
3083/* For a final link, this function is called after we have sized the
3084 stubs to provide a value for __gp. */
3085
b34976b6 3086bfd_boolean
c39a58e6 3087elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3088{
b4655ea9
AM
3089 struct bfd_link_hash_entry *h;
3090 asection *sec = NULL;
3091 bfd_vma gp_val = 0;
30667bf3 3092
55ef6584 3093 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
30667bf3 3094
df8634e3 3095 if (h != NULL
b4655ea9
AM
3096 && (h->type == bfd_link_hash_defined
3097 || h->type == bfd_link_hash_defweak))
30667bf3 3098 {
b4655ea9
AM
3099 gp_val = h->u.def.value;
3100 sec = h->u.def.section;
30667bf3
AM
3101 }
3102 else
3103 {
0eddce27
AM
3104 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3105 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3106
74d1c347
AM
3107 /* Choose to point our LTP at, in this order, one of .plt, .got,
3108 or .data, if these sections exist. In the case of choosing
3109 .plt try to make the LTP ideal for addressing anywhere in the
3110 .plt or .got with a 14 bit signed offset. Typically, the end
3111 of the .plt is the start of the .got, so choose .plt + 0x2000
3112 if either the .plt or .got is larger than 0x2000. If both
3113 the .plt and .got are smaller than 0x2000, choose the end of
3114 the .plt section. */
225247f0
JT
3115 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3116 ? NULL : splt;
74d1c347 3117 if (sec != NULL)
30667bf3 3118 {
eea6121a
AM
3119 gp_val = sec->size;
3120 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3121 {
3122 gp_val = 0x2000;
3123 }
3124 }
3125 else
3126 {
b4655ea9 3127 sec = sgot;
74d1c347
AM
3128 if (sec != NULL)
3129 {
225247f0
JT
3130 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3131 {
3132 /* We know we don't have a .plt. If .got is large,
3133 offset our LTP. */
3134 if (sec->size > 0x2000)
3135 gp_val = 0x2000;
3136 }
74d1c347
AM
3137 }
3138 else
3139 {
3140 /* No .plt or .got. Who cares what the LTP is? */
3141 sec = bfd_get_section_by_name (abfd, ".data");
3142 }
30667bf3 3143 }
df8634e3
AM
3144
3145 if (h != NULL)
3146 {
b4655ea9
AM
3147 h->type = bfd_link_hash_defined;
3148 h->u.def.value = gp_val;
df8634e3 3149 if (sec != NULL)
b4655ea9 3150 h->u.def.section = sec;
df8634e3 3151 else
b4655ea9 3152 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3153 }
30667bf3
AM
3154 }
3155
55ef6584
AM
3156 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3157 {
3158 if (sec != NULL && sec->output_section != NULL)
3159 gp_val += sec->output_section->vma + sec->output_offset;
74d1c347 3160
55ef6584
AM
3161 elf_gp (abfd) = gp_val;
3162 }
b34976b6 3163 return TRUE;
30667bf3
AM
3164}
3165
30667bf3
AM
3166/* Build all the stubs associated with the current output file. The
3167 stubs are kept in a hash table attached to the main linker hash
3168 table. We also set up the .plt entries for statically linked PIC
3169 functions here. This function is called via hppaelf_finish in the
3170 linker. */
3171
b34976b6 3172bfd_boolean
c39a58e6 3173elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3174{
3175 asection *stub_sec;
3176 struct bfd_hash_table *table;
83c81bfe 3177 struct elf32_hppa_link_hash_table *htab;
30667bf3 3178
83c81bfe 3179 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3180 if (htab == NULL)
3181 return FALSE;
30667bf3 3182
83c81bfe 3183 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3184 stub_sec != NULL;
3185 stub_sec = stub_sec->next)
a464198b
AM
3186 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3187 && stub_sec->size != 0)
3188 {
3189 /* Allocate memory to hold the linker stubs. */
3190 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3191 if (stub_sec->contents == NULL)
3192 return FALSE;
3193 stub_sec->size = 0;
3194 }
30667bf3
AM
3195
3196 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3197 table = &htab->bstab;
30667bf3
AM
3198 bfd_hash_traverse (table, hppa_build_one_stub, info);
3199
b34976b6 3200 return TRUE;
30667bf3
AM
3201}
3202
9b52905e 3203/* Return the base vma address which should be subtracted from the real
68ffbac6 3204 address when resolving a dtpoff relocation.
9b52905e
NC
3205 This is PT_TLS segment p_vaddr. */
3206
3207static bfd_vma
3208dtpoff_base (struct bfd_link_info *info)
3209{
3210 /* If tls_sec is NULL, we should have signalled an error already. */
3211 if (elf_hash_table (info)->tls_sec == NULL)
3212 return 0;
3213 return elf_hash_table (info)->tls_sec->vma;
3214}
3215
3216/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3217
3218static bfd_vma
3219tpoff (struct bfd_link_info *info, bfd_vma address)
3220{
3221 struct elf_link_hash_table *htab = elf_hash_table (info);
3222
3223 /* If tls_sec is NULL, we should have signalled an error already. */
3224 if (htab->tls_sec == NULL)
3225 return 0;
68ffbac6 3226 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3227 tcbhead structure which has 2 pointer fields. */
68ffbac6 3228 return (address - htab->tls_sec->vma
9b52905e
NC
3229 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3230}
3231
c46b7515
AM
3232/* Perform a final link. */
3233
b34976b6 3234static bfd_boolean
c39a58e6 3235elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3236{
6d4b2867
JDA
3237 struct stat buf;
3238
4dc86686 3239 /* Invoke the regular ELF linker to do all the work. */
c152c796 3240 if (!bfd_elf_final_link (abfd, info))
b34976b6 3241 return FALSE;
c46b7515
AM
3242
3243 /* If we're producing a final executable, sort the contents of the
985142a4 3244 unwind section. */
0e1862bb 3245 if (bfd_link_relocatable (info))
d9f40817
DA
3246 return TRUE;
3247
6d4b2867
JDA
3248 /* Do not attempt to sort non-regular files. This is here
3249 especially for configure scripts and kernel builds which run
3250 tests with "ld [...] -o /dev/null". */
3251 if (stat (abfd->filename, &buf) != 0
3252 || !S_ISREG(buf.st_mode))
3253 return TRUE;
3254
46fe4e66 3255 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3256}
3257
3258/* Record the lowest address for the data and text segments. */
3259
3260static void
2ea37f1c 3261hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3262{
83c81bfe 3263 struct elf32_hppa_link_hash_table *htab;
c46b7515 3264
875c0872 3265 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3266 if (htab == NULL)
3267 return;
c46b7515
AM
3268
3269 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3270 {
2ea37f1c
NC
3271 bfd_vma value;
3272 Elf_Internal_Phdr *p;
3273
3274 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3275 BFD_ASSERT (p != NULL);
3276 value = p->p_vaddr;
c46b7515
AM
3277
3278 if ((section->flags & SEC_READONLY) != 0)
3279 {
83c81bfe
AM
3280 if (value < htab->text_segment_base)
3281 htab->text_segment_base = value;
c46b7515
AM
3282 }
3283 else
3284 {
83c81bfe
AM
3285 if (value < htab->data_segment_base)
3286 htab->data_segment_base = value;
c46b7515
AM
3287 }
3288 }
3289}
3290
30667bf3
AM
3291/* Perform a relocation as part of a final link. */
3292
3293static bfd_reloc_status_type
c39a58e6
AM
3294final_link_relocate (asection *input_section,
3295 bfd_byte *contents,
875c0872 3296 const Elf_Internal_Rela *rela,
c39a58e6
AM
3297 bfd_vma value,
3298 struct elf32_hppa_link_hash_table *htab,
3299 asection *sym_sec,
875c0872 3300 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3301 struct bfd_link_info *info)
30667bf3
AM
3302{
3303 int insn;
875c0872 3304 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3305 unsigned int orig_r_type = r_type;
30667bf3
AM
3306 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3307 int r_format = howto->bitsize;
3308 enum hppa_reloc_field_selector_type_alt r_field;
3309 bfd *input_bfd = input_section->owner;
875c0872 3310 bfd_vma offset = rela->r_offset;
30667bf3
AM
3311 bfd_vma max_branch_offset = 0;
3312 bfd_byte *hit_data = contents + offset;
875c0872 3313 bfd_signed_vma addend = rela->r_addend;
30667bf3 3314 bfd_vma location;
875c0872 3315 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3316 int val;
30667bf3
AM
3317
3318 if (r_type == R_PARISC_NONE)
3319 return bfd_reloc_ok;
3320
3321 insn = bfd_get_32 (input_bfd, hit_data);
3322
3323 /* Find out where we are and where we're going. */
3324 location = (offset +
3325 input_section->output_offset +
3326 input_section->output_section->vma);
3327
a252afa4
DA
3328 /* If we are not building a shared library, convert DLTIND relocs to
3329 DPREL relocs. */
0e1862bb 3330 if (!bfd_link_pic (info))
a252afa4
DA
3331 {
3332 switch (r_type)
4fc8051d
AM
3333 {
3334 case R_PARISC_DLTIND21L:
143bb599
DA
3335 case R_PARISC_TLS_GD21L:
3336 case R_PARISC_TLS_LDM21L:
3337 case R_PARISC_TLS_IE21L:
4fc8051d 3338 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3339 break;
3340
4fc8051d 3341 case R_PARISC_DLTIND14R:
143bb599
DA
3342 case R_PARISC_TLS_GD14R:
3343 case R_PARISC_TLS_LDM14R:
3344 case R_PARISC_TLS_IE14R:
4fc8051d 3345 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3346 break;
3347
4fc8051d
AM
3348 case R_PARISC_DLTIND14F:
3349 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3350 break;
3351 }
3352 }
3353
30667bf3
AM
3354 switch (r_type)
3355 {
3356 case R_PARISC_PCREL12F:
3357 case R_PARISC_PCREL17F:
3358 case R_PARISC_PCREL22F:
067fa4a6
AM
3359 /* If this call should go via the plt, find the import stub in
3360 the stub hash. */
30667bf3
AM
3361 if (sym_sec == NULL
3362 || sym_sec->output_section == NULL
875c0872 3363 || (hh != NULL
a63e02c7
DA
3364 && hh->eh.plt.offset != (bfd_vma) -1
3365 && hh->eh.dynindx != -1
875c0872 3366 && !hh->plabel
0e1862bb 3367 && (bfd_link_pic (info)
a63e02c7
DA
3368 || !hh->eh.def_regular
3369 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3370 {
875c0872
DA
3371 hsh = hppa_get_stub_entry (input_section, sym_sec,
3372 hh, rela, htab);
3373 if (hsh != NULL)
30667bf3 3374 {
875c0872
DA
3375 value = (hsh->stub_offset
3376 + hsh->stub_sec->output_offset
3377 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3378 addend = 0;
3379 }
875c0872 3380 else if (sym_sec == NULL && hh != NULL
a63e02c7 3381 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3382 {
db20fd76
AM
3383 /* It's OK if undefined weak. Calls to undefined weak
3384 symbols behave as if the "called" function
3385 immediately returns. We can thus call to a weak
3386 function without first checking whether the function
3387 is defined. */
30667bf3 3388 value = location;
db20fd76 3389 addend = 8;
30667bf3
AM
3390 }
3391 else
f09ebc7d 3392 return bfd_reloc_undefined;
30667bf3
AM
3393 }
3394 /* Fall thru. */
3395
3396 case R_PARISC_PCREL21L:
3397 case R_PARISC_PCREL17C:
3398 case R_PARISC_PCREL17R:
3399 case R_PARISC_PCREL14R:
3400 case R_PARISC_PCREL14F:
36751eee 3401 case R_PARISC_PCREL32:
30667bf3
AM
3402 /* Make it a pc relative offset. */
3403 value -= location;
3404 addend -= 8;
3405 break;
3406
3407 case R_PARISC_DPREL21L:
3408 case R_PARISC_DPREL14R:
3409 case R_PARISC_DPREL14F:
a252afa4
DA
3410 /* Convert instructions that use the linkage table pointer (r19) to
3411 instructions that use the global data pointer (dp). This is the
3412 most efficient way of using PIC code in an incomplete executable,
3413 but the user must follow the standard runtime conventions for
3414 accessing data for this to work. */
143bb599 3415 if (orig_r_type != r_type)
a252afa4 3416 {
143bb599
DA
3417 if (r_type == R_PARISC_DPREL21L)
3418 {
3419 /* GCC sometimes uses a register other than r19 for the
3420 operation, so we must convert any addil instruction
3421 that uses this relocation. */
3422 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3423 insn = ADDIL_DP;
3424 else
3425 /* We must have a ldil instruction. It's too hard to find
3426 and convert the associated add instruction, so issue an
3427 error. */
4eca0228 3428 _bfd_error_handler
695344c0 3429 /* xgettext:c-format */
d42c267e 3430 (_("%B(%A+%#Lx): %s fixup for insn %#x is not supported in a non-shared link"),
143bb599
DA
3431 input_bfd,
3432 input_section,
d42c267e 3433 offset,
143bb599
DA
3434 howto->name,
3435 insn);
3436 }
3437 else if (r_type == R_PARISC_DPREL14F)
3438 {
3439 /* This must be a format 1 load/store. Change the base
3440 register to dp. */
3441 insn = (insn & 0xfc1ffff) | (27 << 21);
3442 }
a252afa4
DA
3443 }
3444
143bb599
DA
3445 /* For all the DP relative relocations, we need to examine the symbol's
3446 section. If it has no section or if it's a code section, then
3447 "data pointer relative" makes no sense. In that case we don't
3448 adjust the "value", and for 21 bit addil instructions, we change the
3449 source addend register from %dp to %r0. This situation commonly
3450 arises for undefined weak symbols and when a variable's "constness"
3451 is declared differently from the way the variable is defined. For
3452 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3453 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3454 {
3455 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3456 == (((int) OP_ADDIL << 26) | (27 << 21)))
3457 {
3458 insn &= ~ (0x1f << 21);
30667bf3
AM
3459 }
3460 /* Now try to make things easy for the dynamic linker. */
3461
3462 break;
3463 }
74d1c347 3464 /* Fall thru. */
30667bf3
AM
3465
3466 case R_PARISC_DLTIND21L:
3467 case R_PARISC_DLTIND14R:
3468 case R_PARISC_DLTIND14F:
143bb599
DA
3469 case R_PARISC_TLS_GD21L:
3470 case R_PARISC_TLS_LDM21L:
3471 case R_PARISC_TLS_IE21L:
9b52905e 3472 case R_PARISC_TLS_GD14R:
9b52905e 3473 case R_PARISC_TLS_LDM14R:
9b52905e 3474 case R_PARISC_TLS_IE14R:
30667bf3
AM
3475 value -= elf_gp (input_section->output_section->owner);
3476 break;
3477
c46b7515
AM
3478 case R_PARISC_SEGREL32:
3479 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3480 value -= htab->text_segment_base;
c46b7515 3481 else
83c81bfe 3482 value -= htab->data_segment_base;
c46b7515
AM
3483 break;
3484
30667bf3
AM
3485 default:
3486 break;
3487 }
3488
3489 switch (r_type)
3490 {
3491 case R_PARISC_DIR32:
47d89dba 3492 case R_PARISC_DIR14F:
30667bf3
AM
3493 case R_PARISC_DIR17F:
3494 case R_PARISC_PCREL17C:
3495 case R_PARISC_PCREL14F:
36751eee 3496 case R_PARISC_PCREL32:
30667bf3
AM
3497 case R_PARISC_DPREL14F:
3498 case R_PARISC_PLABEL32:
3499 case R_PARISC_DLTIND14F:
3500 case R_PARISC_SEGBASE:
3501 case R_PARISC_SEGREL32:
9b52905e
NC
3502 case R_PARISC_TLS_DTPMOD32:
3503 case R_PARISC_TLS_DTPOFF32:
3504 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3505 r_field = e_fsel;
3506 break;
3507
1bf42538 3508 case R_PARISC_DLTIND21L:
30667bf3 3509 case R_PARISC_PCREL21L:
30667bf3 3510 case R_PARISC_PLABEL21L:
1bf42538
JL
3511 r_field = e_lsel;
3512 break;
3513
3514 case R_PARISC_DIR21L:
3515 case R_PARISC_DPREL21L:
9b52905e
NC
3516 case R_PARISC_TLS_GD21L:
3517 case R_PARISC_TLS_LDM21L:
3518 case R_PARISC_TLS_LDO21L:
3519 case R_PARISC_TLS_IE21L:
3520 case R_PARISC_TLS_LE21L:
30667bf3
AM
3521 r_field = e_lrsel;
3522 break;
3523
30667bf3 3524 case R_PARISC_PCREL17R:
30667bf3 3525 case R_PARISC_PCREL14R:
30667bf3
AM
3526 case R_PARISC_PLABEL14R:
3527 case R_PARISC_DLTIND14R:
1bf42538
JL
3528 r_field = e_rsel;
3529 break;
3530
3531 case R_PARISC_DIR17R:
3532 case R_PARISC_DIR14R:
3533 case R_PARISC_DPREL14R:
9b52905e
NC
3534 case R_PARISC_TLS_GD14R:
3535 case R_PARISC_TLS_LDM14R:
3536 case R_PARISC_TLS_LDO14R:
3537 case R_PARISC_TLS_IE14R:
3538 case R_PARISC_TLS_LE14R:
30667bf3
AM
3539 r_field = e_rrsel;
3540 break;
3541
3542 case R_PARISC_PCREL12F:
3543 case R_PARISC_PCREL17F:
3544 case R_PARISC_PCREL22F:
3545 r_field = e_fsel;
3546
3547 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3548 {
3549 max_branch_offset = (1 << (17-1)) << 2;
3550 }
3551 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3552 {
3553 max_branch_offset = (1 << (12-1)) << 2;
3554 }
3555 else
3556 {
3557 max_branch_offset = (1 << (22-1)) << 2;
3558 }
3559
3560 /* sym_sec is NULL on undefined weak syms or when shared on
3561 undefined syms. We've already checked for a stub for the
3562 shared undefined case. */
3563 if (sym_sec == NULL)
3564 break;
3565
3566 /* If the branch is out of reach, then redirect the
3567 call to the local stub for this function. */
3568 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3569 {
875c0872
DA
3570 hsh = hppa_get_stub_entry (input_section, sym_sec,
3571 hh, rela, htab);
3572 if (hsh == NULL)
f09ebc7d 3573 return bfd_reloc_undefined;
30667bf3
AM
3574
3575 /* Munge up the value and addend so that we call the stub
3576 rather than the procedure directly. */
875c0872
DA
3577 value = (hsh->stub_offset
3578 + hsh->stub_sec->output_offset
3579 + hsh->stub_sec->output_section->vma
30667bf3
AM
3580 - location);
3581 addend = -8;
3582 }
3583 break;
3584
3585 /* Something we don't know how to handle. */
3586 default:
3587 return bfd_reloc_notsupported;
3588 }
3589
3590 /* Make sure we can reach the stub. */
3591 if (max_branch_offset != 0
3592 && value + addend + max_branch_offset >= 2*max_branch_offset)
3593 {
4eca0228 3594 _bfd_error_handler
695344c0 3595 /* xgettext:c-format */
d42c267e 3596 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
d003868e
AM
3597 input_bfd,
3598 input_section,
d42c267e 3599 offset,
a63e02c7 3600 hsh->bh_root.string);
ce757d15 3601 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3602 return bfd_reloc_notsupported;
3603 }
3604
3605 val = hppa_field_adjust (value, addend, r_field);
3606
3607 switch (r_type)
3608 {
3609 case R_PARISC_PCREL12F:
3610 case R_PARISC_PCREL17C:
3611 case R_PARISC_PCREL17F:
3612 case R_PARISC_PCREL17R:
3613 case R_PARISC_PCREL22F:
3614 case R_PARISC_DIR17F:
3615 case R_PARISC_DIR17R:
3616 /* This is a branch. Divide the offset by four.
3617 Note that we need to decide whether it's a branch or
3618 otherwise by inspecting the reloc. Inspecting insn won't
3619 work as insn might be from a .word directive. */
3620 val >>= 2;
3621 break;
3622
3623 default:
3624 break;
3625 }
3626
3627 insn = hppa_rebuild_insn (insn, val, r_format);
3628
3629 /* Update the instruction word. */
74d1c347 3630 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3631 return bfd_reloc_ok;
3632}
3633
30667bf3
AM
3634/* Relocate an HPPA ELF section. */
3635
b34976b6 3636static bfd_boolean
c39a58e6
AM
3637elf32_hppa_relocate_section (bfd *output_bfd,
3638 struct bfd_link_info *info,
3639 bfd *input_bfd,
3640 asection *input_section,
3641 bfd_byte *contents,
3642 Elf_Internal_Rela *relocs,
3643 Elf_Internal_Sym *local_syms,
3644 asection **local_sections)
30667bf3 3645{
30667bf3 3646 bfd_vma *local_got_offsets;
83c81bfe 3647 struct elf32_hppa_link_hash_table *htab;
30667bf3 3648 Elf_Internal_Shdr *symtab_hdr;
875c0872 3649 Elf_Internal_Rela *rela;
30667bf3 3650 Elf_Internal_Rela *relend;
30667bf3
AM
3651
3652 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3653
83c81bfe 3654 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3655 if (htab == NULL)
3656 return FALSE;
3657
74d1c347 3658 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3659
875c0872 3660 rela = relocs;
30667bf3 3661 relend = relocs + input_section->reloc_count;
875c0872 3662 for (; rela < relend; rela++)
30667bf3
AM
3663 {
3664 unsigned int r_type;
3665 reloc_howto_type *howto;
3666 unsigned int r_symndx;
875c0872 3667 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3668 Elf_Internal_Sym *sym;
3669 asection *sym_sec;
3670 bfd_vma relocation;
875c0872 3671 bfd_reloc_status_type rstatus;
30667bf3 3672 const char *sym_name;
b34976b6
AM
3673 bfd_boolean plabel;
3674 bfd_boolean warned_undef;
30667bf3 3675
875c0872 3676 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3677 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3678 {
3679 bfd_set_error (bfd_error_bad_value);
b34976b6 3680 return FALSE;
30667bf3
AM
3681 }
3682 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3683 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3684 continue;
3685
875c0872
DA
3686 r_symndx = ELF32_R_SYM (rela->r_info);
3687 hh = NULL;
30667bf3
AM
3688 sym = NULL;
3689 sym_sec = NULL;
b34976b6 3690 warned_undef = FALSE;
30667bf3
AM
3691 if (r_symndx < symtab_hdr->sh_info)
3692 {
3693 /* This is a local symbol, h defaults to NULL. */
3694 sym = local_syms + r_symndx;
3695 sym_sec = local_sections[r_symndx];
875c0872 3696 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3697 }
3698 else
3699 {
875c0872 3700 struct elf_link_hash_entry *eh;
62d887d4 3701 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3702 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3703
875c0872 3704 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3705 r_symndx, symtab_hdr, sym_hashes,
875c0872 3706 eh, sym_sec, relocation,
62d887d4
L
3707 unresolved_reloc, warned_undef,
3708 ignored);
560e09e9 3709
0e1862bb 3710 if (!bfd_link_relocatable (info)
ab96bf03 3711 && relocation == 0
875c0872
DA
3712 && eh->root.type != bfd_link_hash_defined
3713 && eh->root.type != bfd_link_hash_defweak
3714 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3715 {
59c2e50f 3716 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3717 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3718 && eh->type == STT_PARISC_MILLI)
560e09e9 3719 {
1a72702b
AM
3720 (*info->callbacks->undefined_symbol)
3721 (info, eh_name (eh), input_bfd,
3722 input_section, rela->r_offset, FALSE);
560e09e9
NC
3723 warned_undef = TRUE;
3724 }
30667bf3 3725 }
875c0872 3726 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3727 }
3728
dbaa2011 3729 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3730 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3731 rela, 1, relend,
3732 elf_hppa_howto_table + r_type, 0,
e4067dbb 3733 contents);
ab96bf03 3734
0e1862bb 3735 if (bfd_link_relocatable (info))
ab96bf03
AM
3736 continue;
3737
30667bf3 3738 /* Do any required modifications to the relocation value, and
25f72752
AM
3739 determine what types of dynamic info we need to output, if
3740 any. */
74d1c347 3741 plabel = 0;
30667bf3
AM
3742 switch (r_type)
3743 {
3744 case R_PARISC_DLTIND14F:
3745 case R_PARISC_DLTIND14R:
3746 case R_PARISC_DLTIND21L:
ce757d15
AM
3747 {
3748 bfd_vma off;
b34976b6 3749 bfd_boolean do_got = 0;
ce757d15
AM
3750
3751 /* Relocation is to the entry for this symbol in the
3752 global offset table. */
875c0872 3753 if (hh != NULL)
ce757d15 3754 {
b34976b6 3755 bfd_boolean dyn;
ce757d15 3756
a63e02c7
DA
3757 off = hh->eh.got.offset;
3758 dyn = htab->etab.dynamic_sections_created;
0e1862bb
L
3759 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3760 bfd_link_pic (info),
a63e02c7 3761 &hh->eh))
ce757d15
AM
3762 {
3763 /* If we aren't going to call finish_dynamic_symbol,
3764 then we need to handle initialisation of the .got
3765 entry and create needed relocs here. Since the
3766 offset must always be a multiple of 4, we use the
3767 least significant bit to record whether we have
3768 initialised it already. */
3769 if ((off & 1) != 0)
3770 off &= ~1;
3771 else
3772 {
a63e02c7 3773 hh->eh.got.offset |= 1;
ce757d15
AM
3774 do_got = 1;
3775 }
3776 }
3777 }
3778 else
3779 {
3780 /* Local symbol case. */
3781 if (local_got_offsets == NULL)
3782 abort ();
3783
3784 off = local_got_offsets[r_symndx];
3785
3786 /* The offset must always be a multiple of 4. We use
3787 the least significant bit to record whether we have
3788 already generated the necessary reloc. */
3789 if ((off & 1) != 0)
3790 off &= ~1;
3791 else
3792 {
3793 local_got_offsets[r_symndx] |= 1;
3794 do_got = 1;
3795 }
3796 }
68fb2e56 3797
ce757d15
AM
3798 if (do_got)
3799 {
0e1862bb 3800 if (bfd_link_pic (info))
ce757d15
AM
3801 {
3802 /* Output a dynamic relocation for this GOT entry.
3803 In this case it is relative to the base of the
3804 object because the symbol index is zero. */
3805 Elf_Internal_Rela outrel;
947216bf 3806 bfd_byte *loc;
ce558b89 3807 asection *sec = htab->etab.srelgot;
ce757d15
AM
3808
3809 outrel.r_offset = (off
ce558b89
AM
3810 + htab->etab.sgot->output_offset
3811 + htab->etab.sgot->output_section->vma);
ce757d15
AM
3812 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3813 outrel.r_addend = relocation;
875c0872
DA
3814 loc = sec->contents;
3815 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3816 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3817 }
3818 else
30667bf3 3819 bfd_put_32 (output_bfd, relocation,
ce558b89 3820 htab->etab.sgot->contents + off);
ce757d15 3821 }
30667bf3 3822
ce757d15
AM
3823 if (off >= (bfd_vma) -2)
3824 abort ();
30667bf3 3825
ce757d15
AM
3826 /* Add the base of the GOT to the relocation value. */
3827 relocation = (off
ce558b89
AM
3828 + htab->etab.sgot->output_offset
3829 + htab->etab.sgot->output_section->vma);
ce757d15 3830 }
30667bf3 3831 break;
252b5132 3832
c46b7515
AM
3833 case R_PARISC_SEGREL32:
3834 /* If this is the first SEGREL relocation, then initialize
3835 the segment base values. */
83c81bfe
AM
3836 if (htab->text_segment_base == (bfd_vma) -1)
3837 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3838 break;
3839
30667bf3
AM
3840 case R_PARISC_PLABEL14R:
3841 case R_PARISC_PLABEL21L:
3842 case R_PARISC_PLABEL32:
a63e02c7 3843 if (htab->etab.dynamic_sections_created)
252b5132 3844 {
ce757d15 3845 bfd_vma off;
b34976b6 3846 bfd_boolean do_plt = 0;
74d1c347
AM
3847 /* If we have a global symbol with a PLT slot, then
3848 redirect this relocation to it. */
875c0872 3849 if (hh != NULL)
74d1c347 3850 {
a63e02c7 3851 off = hh->eh.plt.offset;
0e1862bb
L
3852 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3853 bfd_link_pic (info),
a63e02c7 3854 &hh->eh))
8dea1268
AM
3855 {
3856 /* In a non-shared link, adjust_dynamic_symbols
3857 isn't called for symbols forced local. We
dc810e39 3858 need to write out the plt entry here. */
8dea1268
AM
3859 if ((off & 1) != 0)
3860 off &= ~1;
3861 else
3862 {
a63e02c7 3863 hh->eh.plt.offset |= 1;
ce757d15 3864 do_plt = 1;
8dea1268
AM
3865 }
3866 }
74d1c347
AM
3867 }
3868 else
3869 {
68fb2e56
AM
3870 bfd_vma *local_plt_offsets;
3871
3872 if (local_got_offsets == NULL)
3873 abort ();
74d1c347 3874
68fb2e56
AM
3875 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3876 off = local_plt_offsets[r_symndx];
74d1c347
AM
3877
3878 /* As for the local .got entry case, we use the last
3879 bit to record whether we've already initialised
3880 this local .plt entry. */
3881 if ((off & 1) != 0)
3882 off &= ~1;
ce757d15
AM
3883 else
3884 {
3885 local_plt_offsets[r_symndx] |= 1;
3886 do_plt = 1;
3887 }
3888 }
3889
3890 if (do_plt)
3891 {
0e1862bb 3892 if (bfd_link_pic (info))
ce757d15
AM
3893 {
3894 /* Output a dynamic IPLT relocation for this
3895 PLT entry. */
3896 Elf_Internal_Rela outrel;
947216bf 3897 bfd_byte *loc;
ce558b89 3898 asection *s = htab->etab.srelplt;
ce757d15
AM
3899
3900 outrel.r_offset = (off
ce558b89
AM
3901 + htab->etab.splt->output_offset
3902 + htab->etab.splt->output_section->vma);
ce757d15
AM
3903 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3904 outrel.r_addend = relocation;
947216bf
AM
3905 loc = s->contents;
3906 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3907 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3908 }
74d1c347
AM
3909 else
3910 {
3911 bfd_put_32 (output_bfd,
3912 relocation,
ce558b89 3913 htab->etab.splt->contents + off);
74d1c347 3914 bfd_put_32 (output_bfd,
ce558b89
AM
3915 elf_gp (htab->etab.splt->output_section->owner),
3916 htab->etab.splt->contents + off + 4);
74d1c347
AM
3917 }
3918 }
3919
68fb2e56 3920 if (off >= (bfd_vma) -2)
49e9d0d3 3921 abort ();
74d1c347
AM
3922
3923 /* PLABELs contain function pointers. Relocation is to
3924 the entry for the function in the .plt. The magic +2
3925 offset signals to $$dyncall that the function pointer
3926 is in the .plt and thus has a gp pointer too.
3927 Exception: Undefined PLABELs should have a value of
3928 zero. */
875c0872 3929 if (hh == NULL
a63e02c7
DA
3930 || (hh->eh.root.type != bfd_link_hash_undefweak
3931 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3932 {
3933 relocation = (off
ce558b89
AM
3934 + htab->etab.splt->output_offset
3935 + htab->etab.splt->output_section->vma
74d1c347
AM
3936 + 2);
3937 }
3938 plabel = 1;
30667bf3 3939 }
1a0670f3 3940 /* Fall through. */
30667bf3
AM
3941
3942 case R_PARISC_DIR17F:
3943 case R_PARISC_DIR17R:
47d89dba 3944 case R_PARISC_DIR14F:
30667bf3
AM
3945 case R_PARISC_DIR14R:
3946 case R_PARISC_DIR21L:
3947 case R_PARISC_DPREL14F:
3948 case R_PARISC_DPREL14R:
3949 case R_PARISC_DPREL21L:
3950 case R_PARISC_DIR32:
b1e24c02 3951 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3952 break;
3953
30667bf3 3954 /* The reloc types handled here and this conditional
56882138 3955 expression must match the code in ..check_relocs and
ec338859 3956 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3957 as in ..check_relocs, with some extra conditions (dynindx
3958 test in this case) to cater for relocs removed by
ec338859 3959 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3960 here does indeed match the one in ..check_relocs, the
3961 difference being that here we test DEF_DYNAMIC as well as
3962 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3963 which is why we can't use just that test here.
3964 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3965 there all files have not been loaded. */
0e1862bb 3966 if ((bfd_link_pic (info)
875c0872 3967 && (hh == NULL
a63e02c7
DA
3968 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3969 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3970 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3971 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
0e1862bb 3972 || (!bfd_link_pic (info)
875c0872 3973 && hh != NULL
a63e02c7
DA
3974 && hh->eh.dynindx != -1
3975 && !hh->eh.non_got_ref
4fc8051d 3976 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3977 && hh->eh.def_dynamic
3978 && !hh->eh.def_regular)
3979 || hh->eh.root.type == bfd_link_hash_undefweak
3980 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3981 {
3982 Elf_Internal_Rela outrel;
b34976b6 3983 bfd_boolean skip;
98ceb8ce 3984 asection *sreloc;
947216bf 3985 bfd_byte *loc;
252b5132 3986
30667bf3
AM
3987 /* When generating a shared object, these relocations
3988 are copied into the output file to be resolved at run
3989 time. */
252b5132 3990
875c0872 3991 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3992 outrel.r_offset =
3993 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3994 rela->r_offset);
0bb2d96a
JJ
3995 skip = (outrel.r_offset == (bfd_vma) -1
3996 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3997 outrel.r_offset += (input_section->output_offset
3998 + input_section->output_section->vma);
68ffbac6 3999
30667bf3 4000 if (skip)
252b5132 4001 {
30667bf3 4002 memset (&outrel, 0, sizeof (outrel));
252b5132 4003 }
875c0872 4004 else if (hh != NULL
a63e02c7 4005 && hh->eh.dynindx != -1
74d1c347 4006 && (plabel
446f2863 4007 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 4008 || !bfd_link_pic (info)
a496fbc8 4009 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 4010 || !hh->eh.def_regular))
252b5132 4011 {
a63e02c7 4012 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4013 }
4014 else /* It's a local symbol, or one marked to become local. */
4015 {
4016 int indx = 0;
edd21aca 4017
30667bf3
AM
4018 /* Add the absolute offset of the symbol. */
4019 outrel.r_addend += relocation;
edd21aca 4020
74d1c347
AM
4021 /* Global plabels need to be processed by the
4022 dynamic linker so that functions have at most one
4023 fptr. For this reason, we need to differentiate
4024 between global and local plabels, which we do by
4025 providing the function symbol for a global plabel
4026 reloc, and no symbol for local plabels. */
4027 if (! plabel
4028 && sym_sec != NULL
30667bf3
AM
4029 && sym_sec->output_section != NULL
4030 && ! bfd_is_abs_section (sym_sec))
252b5132 4031 {
74541ad4
AM
4032 asection *osec;
4033
4034 osec = sym_sec->output_section;
4035 indx = elf_section_data (osec)->dynindx;
4036 if (indx == 0)
4037 {
4038 osec = htab->etab.text_index_section;
4039 indx = elf_section_data (osec)->dynindx;
4040 }
4041 BFD_ASSERT (indx != 0);
4b71bec0 4042
30667bf3
AM
4043 /* We are turning this relocation into one
4044 against a section symbol, so subtract out the
4045 output section's address but not the offset
4046 of the input section in the output section. */
74541ad4 4047 outrel.r_addend -= osec->vma;
252b5132 4048 }
252b5132 4049
30667bf3
AM
4050 outrel.r_info = ELF32_R_INFO (indx, r_type);
4051 }
98ceb8ce
AM
4052 sreloc = elf_section_data (input_section)->sreloc;
4053 if (sreloc == NULL)
4054 abort ();
4055
947216bf
AM
4056 loc = sreloc->contents;
4057 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4058 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4059 }
4060 break;
68ffbac6 4061
9b52905e
NC
4062 case R_PARISC_TLS_LDM21L:
4063 case R_PARISC_TLS_LDM14R:
4064 {
4065 bfd_vma off;
68ffbac6 4066
9b52905e
NC
4067 off = htab->tls_ldm_got.offset;
4068 if (off & 1)
4069 off &= ~1;
4070 else
4071 {
4072 Elf_Internal_Rela outrel;
4073 bfd_byte *loc;
4074
68ffbac6 4075 outrel.r_offset = (off
ce558b89
AM
4076 + htab->etab.sgot->output_section->vma
4077 + htab->etab.sgot->output_offset);
9b52905e
NC
4078 outrel.r_addend = 0;
4079 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
ce558b89
AM
4080 loc = htab->etab.srelgot->contents;
4081 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
9b52905e
NC
4082
4083 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4084 htab->tls_ldm_got.offset |= 1;
4085 }
4086
4087 /* Add the base of the GOT to the relocation value. */
4088 relocation = (off
ce558b89
AM
4089 + htab->etab.sgot->output_offset
4090 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4091
4092 break;
4093 }
4094
4095 case R_PARISC_TLS_LDO21L:
4096 case R_PARISC_TLS_LDO14R:
4097 relocation -= dtpoff_base (info);
4098 break;
4099
4100 case R_PARISC_TLS_GD21L:
4101 case R_PARISC_TLS_GD14R:
4102 case R_PARISC_TLS_IE21L:
4103 case R_PARISC_TLS_IE14R:
4104 {
4105 bfd_vma off;
4106 int indx;
4107 char tls_type;
4108
4109 indx = 0;
4110 if (hh != NULL)
4111 {
4112 bfd_boolean dyn;
4113 dyn = htab->etab.dynamic_sections_created;
4114
0e1862bb
L
4115 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4116 bfd_link_pic (info),
4117 &hh->eh)
4118 && (!bfd_link_pic (info)
9b52905e
NC
4119 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4120 {
4121 indx = hh->eh.dynindx;
4122 }
4123 off = hh->eh.got.offset;
4124 tls_type = hh->tls_type;
4125 }
4126 else
4127 {
4128 off = local_got_offsets[r_symndx];
4129 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4130 }
4131
4132 if (tls_type == GOT_UNKNOWN)
4133 abort ();
4134
4135 if ((off & 1) != 0)
4136 off &= ~1;
4137 else
4138 {
4139 bfd_boolean need_relocs = FALSE;
4140 Elf_Internal_Rela outrel;
4141 bfd_byte *loc = NULL;
4142 int cur_off = off;
4143
4144 /* The GOT entries have not been initialized yet. Do it
4145 now, and emit any relocations. If both an IE GOT and a
4146 GD GOT are necessary, we emit the GD first. */
4147
0e1862bb 4148 if ((bfd_link_pic (info) || indx != 0)
9b52905e
NC
4149 && (hh == NULL
4150 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4151 || hh->eh.root.type != bfd_link_hash_undefweak))
4152 {
4153 need_relocs = TRUE;
ce558b89 4154 loc = htab->etab.srelgot->contents;
9b52905e 4155 /* FIXME (CAO): Should this be reloc_count++ ? */
ce558b89 4156 loc += htab->etab.srelgot->reloc_count * sizeof (Elf32_External_Rela);
9b52905e
NC
4157 }
4158
4159 if (tls_type & GOT_TLS_GD)
4160 {
4161 if (need_relocs)
4162 {
4163 outrel.r_offset = (cur_off
ce558b89
AM
4164 + htab->etab.sgot->output_section->vma
4165 + htab->etab.sgot->output_offset);
9b52905e
NC
4166 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4167 outrel.r_addend = 0;
ce558b89 4168 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + cur_off);
9b52905e 4169 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4170 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4171 loc += sizeof (Elf32_External_Rela);
4172
4173 if (indx == 0)
4174 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4175 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4176 else
4177 {
4178 bfd_put_32 (output_bfd, 0,
ce558b89 4179 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4180 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4181 outrel.r_offset += 4;
4182 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
ce558b89 4183 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4184 loc += sizeof (Elf32_External_Rela);
4185 }
4186 }
4187 else
4188 {
4189 /* If we are not emitting relocations for a
4190 general dynamic reference, then we must be in a
4191 static link or an executable link with the
4192 symbol binding locally. Mark it as belonging
4193 to module 1, the executable. */
4194 bfd_put_32 (output_bfd, 1,
ce558b89 4195 htab->etab.sgot->contents + cur_off);
9b52905e 4196 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4197 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4198 }
4199
4200
4201 cur_off += 8;
4202 }
4203
4204 if (tls_type & GOT_TLS_IE)
4205 {
4206 if (need_relocs)
4207 {
4208 outrel.r_offset = (cur_off
ce558b89
AM
4209 + htab->etab.sgot->output_section->vma
4210 + htab->etab.sgot->output_offset);
9b52905e
NC
4211 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4212
4213 if (indx == 0)
4214 outrel.r_addend = relocation - dtpoff_base (info);
4215 else
4216 outrel.r_addend = 0;
4217
4218 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4219 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4220 loc += sizeof (Elf32_External_Rela);
4221 }
4222 else
4223 bfd_put_32 (output_bfd, tpoff (info, relocation),
ce558b89 4224 htab->etab.sgot->contents + cur_off);
9b52905e
NC
4225
4226 cur_off += 4;
4227 }
4228
4229 if (hh != NULL)
4230 hh->eh.got.offset |= 1;
4231 else
4232 local_got_offsets[r_symndx] |= 1;
4233 }
4234
4235 if ((tls_type & GOT_TLS_GD)
4236 && r_type != R_PARISC_TLS_GD21L
4237 && r_type != R_PARISC_TLS_GD14R)
4238 off += 2 * GOT_ENTRY_SIZE;
4239
4240 /* Add the base of the GOT to the relocation value. */
4241 relocation = (off
ce558b89
AM
4242 + htab->etab.sgot->output_offset
4243 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4244
4245 break;
4246 }
4247
4248 case R_PARISC_TLS_LE21L:
4249 case R_PARISC_TLS_LE14R:
4250 {
4251 relocation = tpoff (info, relocation);
4252 break;
4253 }
4254 break;
edd21aca 4255
30667bf3
AM
4256 default:
4257 break;
4258 }
252b5132 4259
875c0872
DA
4260 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4261 htab, sym_sec, hh, info);
252b5132 4262
875c0872 4263 if (rstatus == bfd_reloc_ok)
30667bf3 4264 continue;
252b5132 4265
875c0872 4266 if (hh != NULL)
9b52905e 4267 sym_name = hh_name (hh);
30667bf3
AM
4268 else
4269 {
4270 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4271 symtab_hdr->sh_link,
4272 sym->st_name);
4273 if (sym_name == NULL)
b34976b6 4274 return FALSE;
30667bf3
AM
4275 if (*sym_name == '\0')
4276 sym_name = bfd_section_name (input_bfd, sym_sec);
4277 }
edd21aca 4278
30667bf3 4279 howto = elf_hppa_howto_table + r_type;
252b5132 4280
875c0872 4281 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4282 {
875c0872 4283 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4284 {
4eca0228 4285 _bfd_error_handler
695344c0 4286 /* xgettext:c-format */
d42c267e 4287 (_("%B(%A+%#Lx): cannot handle %s for %s"),
d003868e
AM
4288 input_bfd,
4289 input_section,
d42c267e 4290 rela->r_offset,
f09ebc7d
AM
4291 howto->name,
4292 sym_name);
4293 bfd_set_error (bfd_error_bad_value);
b34976b6 4294 return FALSE;
f09ebc7d 4295 }
30667bf3
AM
4296 }
4297 else
1a72702b
AM
4298 (*info->callbacks->reloc_overflow)
4299 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4300 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4301 }
edd21aca 4302
b34976b6 4303 return TRUE;
30667bf3 4304}
252b5132 4305
30667bf3
AM
4306/* Finish up dynamic symbol handling. We set the contents of various
4307 dynamic sections here. */
252b5132 4308
b34976b6 4309static bfd_boolean
c39a58e6
AM
4310elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4311 struct bfd_link_info *info,
875c0872 4312 struct elf_link_hash_entry *eh,
c39a58e6 4313 Elf_Internal_Sym *sym)
30667bf3 4314{
83c81bfe 4315 struct elf32_hppa_link_hash_table *htab;
875c0872 4316 Elf_Internal_Rela rela;
a252afa4 4317 bfd_byte *loc;
edd21aca 4318
83c81bfe 4319 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4320 if (htab == NULL)
4321 return FALSE;
30667bf3 4322
875c0872 4323 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4324 {
4325 bfd_vma value;
30667bf3 4326
875c0872 4327 if (eh->plt.offset & 1)
8dea1268
AM
4328 abort ();
4329
30667bf3
AM
4330 /* This symbol has an entry in the procedure linkage table. Set
4331 it up.
4332
4333 The format of a plt entry is
74d1c347
AM
4334 <funcaddr>
4335 <__gp>
47d89dba 4336 */
30667bf3 4337 value = 0;
875c0872
DA
4338 if (eh->root.type == bfd_link_hash_defined
4339 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4340 {
875c0872
DA
4341 value = eh->root.u.def.value;
4342 if (eh->root.u.def.section->output_section != NULL)
4343 value += (eh->root.u.def.section->output_offset
4344 + eh->root.u.def.section->output_section->vma);
252b5132 4345 }
edd21aca 4346
a252afa4 4347 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4348 rela.r_offset = (eh->plt.offset
ce558b89
AM
4349 + htab->etab.splt->output_offset
4350 + htab->etab.splt->output_section->vma);
875c0872 4351 if (eh->dynindx != -1)
30667bf3 4352 {
875c0872
DA
4353 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4354 rela.r_addend = 0;
30667bf3 4355 }
ce757d15 4356 else
47d89dba 4357 {
a252afa4
DA
4358 /* This symbol has been marked to become local, and is
4359 used by a plabel so must be kept in the .plt. */
875c0872
DA
4360 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4361 rela.r_addend = value;
47d89dba
AM
4362 }
4363
ce558b89
AM
4364 loc = htab->etab.srelplt->contents;
4365 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4366 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
a252afa4 4367
875c0872 4368 if (!eh->def_regular)
30667bf3
AM
4369 {
4370 /* Mark the symbol as undefined, rather than as defined in
4371 the .plt section. Leave the value alone. */
4372 sym->st_shndx = SHN_UNDEF;
4373 }
4374 }
edd21aca 4375
9b52905e
NC
4376 if (eh->got.offset != (bfd_vma) -1
4377 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4378 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4379 {
30667bf3
AM
4380 /* This symbol has an entry in the global offset table. Set it
4381 up. */
4382
875c0872 4383 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
ce558b89
AM
4384 + htab->etab.sgot->output_offset
4385 + htab->etab.sgot->output_section->vma);
30667bf3 4386
4dc86686
AM
4387 /* If this is a -Bsymbolic link and the symbol is defined
4388 locally or was forced to be local because of a version file,
4389 we just want to emit a RELATIVE reloc. The entry in the
4390 global offset table will already have been initialized in the
4391 relocate_section function. */
0e1862bb 4392 if (bfd_link_pic (info)
a496fbc8 4393 && (SYMBOLIC_BIND (info, eh) || eh->dynindx == -1)
875c0872 4394 && eh->def_regular)
30667bf3 4395 {
875c0872
DA
4396 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4397 rela.r_addend = (eh->root.u.def.value
4398 + eh->root.u.def.section->output_offset
4399 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4400 }
4401 else
4402 {
875c0872 4403 if ((eh->got.offset & 1) != 0)
49e9d0d3 4404 abort ();
875c0872 4405
ce558b89 4406 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + (eh->got.offset & ~1));
875c0872
DA
4407 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4408 rela.r_addend = 0;
30667bf3 4409 }
edd21aca 4410
ce558b89
AM
4411 loc = htab->etab.srelgot->contents;
4412 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4413 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4414 }
edd21aca 4415
875c0872 4416 if (eh->needs_copy)
30667bf3 4417 {
875c0872 4418 asection *sec;
30667bf3
AM
4419
4420 /* This symbol needs a copy reloc. Set it up. */
4421
875c0872
DA
4422 if (! (eh->dynindx != -1
4423 && (eh->root.type == bfd_link_hash_defined
4424 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4425 abort ();
30667bf3 4426
875c0872
DA
4427 rela.r_offset = (eh->root.u.def.value
4428 + eh->root.u.def.section->output_offset
4429 + eh->root.u.def.section->output_section->vma);
4430 rela.r_addend = 0;
4431 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
afbf7e8e 4432 if (eh->root.u.def.section == htab->etab.sdynrelro)
5474d94f
AM
4433 sec = htab->etab.sreldynrelro;
4434 else
4435 sec = htab->etab.srelbss;
875c0872
DA
4436 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4437 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4438 }
4439
4440 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4441 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4442 {
4443 sym->st_shndx = SHN_ABS;
4444 }
4445
b34976b6 4446 return TRUE;
30667bf3
AM
4447}
4448
98ceb8ce
AM
4449/* Used to decide how to sort relocs in an optimal manner for the
4450 dynamic linker, before writing them out. */
4451
4452static enum elf_reloc_type_class
7e612e98
AM
4453elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4454 const asection *rel_sec ATTRIBUTE_UNUSED,
4455 const Elf_Internal_Rela *rela)
98ceb8ce 4456{
9b52905e 4457 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4458 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4459 check below. */
4460 switch ((int) ELF32_R_TYPE (rela->r_info))
4461 {
4462 case R_PARISC_TLS_DTPMOD32:
4463 case R_PARISC_TLS_DTPOFF32:
4464 case R_PARISC_TLS_TPREL32:
4465 return reloc_class_normal;
4466 }
4467
cf35638d 4468 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4469 return reloc_class_relative;
4470
4471 switch ((int) ELF32_R_TYPE (rela->r_info))
4472 {
4473 case R_PARISC_IPLT:
4474 return reloc_class_plt;
4475 case R_PARISC_COPY:
4476 return reloc_class_copy;
4477 default:
4478 return reloc_class_normal;
4479 }
4480}
4481
30667bf3
AM
4482/* Finish up the dynamic sections. */
4483
b34976b6 4484static bfd_boolean
c39a58e6
AM
4485elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4486 struct bfd_link_info *info)
30667bf3
AM
4487{
4488 bfd *dynobj;
83c81bfe 4489 struct elf32_hppa_link_hash_table *htab;
30667bf3 4490 asection *sdyn;
894891db 4491 asection * sgot;
30667bf3 4492
83c81bfe 4493 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4494 if (htab == NULL)
4495 return FALSE;
4496
a63e02c7 4497 dynobj = htab->etab.dynobj;
30667bf3 4498
ce558b89 4499 sgot = htab->etab.sgot;
894891db
NC
4500 /* A broken linker script might have discarded the dynamic sections.
4501 Catch this here so that we do not seg-fault later on. */
4502 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4503 return FALSE;
4504
3d4d4302 4505 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4506
a63e02c7 4507 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4508 {
4509 Elf32_External_Dyn *dyncon, *dynconend;
4510
49e9d0d3
AM
4511 if (sdyn == NULL)
4512 abort ();
30667bf3
AM
4513
4514 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4515 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4516 for (; dyncon < dynconend; dyncon++)
edd21aca 4517 {
30667bf3
AM
4518 Elf_Internal_Dyn dyn;
4519 asection *s;
4520
4521 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4522
4523 switch (dyn.d_tag)
4524 {
4525 default:
3ac8354b 4526 continue;
30667bf3
AM
4527
4528 case DT_PLTGOT:
4529 /* Use PLTGOT to set the GOT register. */
4530 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4531 break;
4532
4533 case DT_JMPREL:
ce558b89 4534 s = htab->etab.srelplt;
30667bf3 4535 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4536 break;
4537
4538 case DT_PLTRELSZ:
ce558b89 4539 s = htab->etab.srelplt;
eea6121a 4540 dyn.d_un.d_val = s->size;
30667bf3
AM
4541 break;
4542 }
3ac8354b
AM
4543
4544 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4545 }
252b5132 4546 }
edd21aca 4547
894891db 4548 if (sgot != NULL && sgot->size != 0)
30667bf3 4549 {
74d1c347
AM
4550 /* Fill in the first entry in the global offset table.
4551 We use it to point to our dynamic section, if we have one. */
30667bf3 4552 bfd_put_32 (output_bfd,
c39a58e6 4553 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4554 sgot->contents);
30667bf3 4555
74d1c347 4556 /* The second entry is reserved for use by the dynamic linker. */
894891db 4557 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4558
30667bf3 4559 /* Set .got entry size. */
894891db 4560 elf_section_data (sgot->output_section)
74d1c347 4561 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4562 }
4563
ce558b89 4564 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
47d89dba 4565 {
f3c3938c
JDA
4566 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4567 plt stubs and as such the section does not hold a table of fixed-size
4568 entries. */
ce558b89 4569 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4570
83c81bfe 4571 if (htab->need_plt_stub)
47d89dba
AM
4572 {
4573 /* Set up the .plt stub. */
ce558b89
AM
4574 memcpy (htab->etab.splt->contents
4575 + htab->etab.splt->size - sizeof (plt_stub),
47d89dba
AM
4576 plt_stub, sizeof (plt_stub));
4577
ce558b89
AM
4578 if ((htab->etab.splt->output_offset
4579 + htab->etab.splt->output_section->vma
4580 + htab->etab.splt->size)
894891db
NC
4581 != (sgot->output_offset
4582 + sgot->output_section->vma))
47d89dba 4583 {
4eca0228 4584 _bfd_error_handler
47d89dba 4585 (_(".got section not immediately after .plt section"));
b34976b6 4586 return FALSE;
47d89dba
AM
4587 }
4588 }
4589 }
30667bf3 4590
b34976b6 4591 return TRUE;
30667bf3 4592}
252b5132 4593
30667bf3
AM
4594/* Called when writing out an object file to decide the type of a
4595 symbol. */
4596static int
c39a58e6 4597elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4598{
4599 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4600 return STT_PARISC_MILLI;
4601 else
4602 return type;
252b5132
RH
4603}
4604
4605/* Misc BFD support code. */
30667bf3
AM
4606#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4607#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4608#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4609#define elf_info_to_howto elf_hppa_info_to_howto
4610#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4611
252b5132 4612/* Stuff for the BFD linker. */
c46b7515 4613#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4614#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4615#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4616#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4617#define elf_backend_check_relocs elf32_hppa_check_relocs
4618#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4619#define elf_backend_fake_sections elf_hppa_fake_sections
4620#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4621#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4622#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4623#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4624#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4625#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4626#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4627#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4628#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4629#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4630#define elf_backend_object_p elf32_hppa_object_p
4631#define elf_backend_final_write_processing elf_hppa_final_write_processing
4632#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4633#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4634#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4635
4636#define elf_backend_can_gc_sections 1
51b64d56 4637#define elf_backend_can_refcount 1
30667bf3
AM
4638#define elf_backend_plt_alignment 2
4639#define elf_backend_want_got_plt 0
4640#define elf_backend_plt_readonly 0
4641#define elf_backend_want_plt_sym 0
74d1c347 4642#define elf_backend_got_header_size 8
5474d94f 4643#define elf_backend_want_dynrelro 1
f0fe0e16 4644#define elf_backend_rela_normal 1
64f52338 4645#define elf_backend_dtrel_excludes_plt 1
a8c75b76 4646#define elf_backend_no_page_alias 1
252b5132 4647
6d00b590 4648#define TARGET_BIG_SYM hppa_elf32_vec
252b5132
RH
4649#define TARGET_BIG_NAME "elf32-hppa"
4650#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4651#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4652#define ELF_MACHINE_CODE EM_PARISC
4653#define ELF_MAXPAGESIZE 0x1000
d1036acb 4654#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4655#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4656
4657#include "elf32-target.h"
d952f17a
AM
4658
4659#undef TARGET_BIG_SYM
6d00b590 4660#define TARGET_BIG_SYM hppa_elf32_linux_vec
d952f17a 4661#undef TARGET_BIG_NAME
914dfb0f 4662#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4663#undef ELF_OSABI
9c55345c 4664#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4665#undef elf32_bed
4666#define elf32_bed elf32_hppa_linux_bed
d952f17a 4667
d952f17a 4668#include "elf32-target.h"
225247f0
JT
4669
4670#undef TARGET_BIG_SYM
6d00b590 4671#define TARGET_BIG_SYM hppa_elf32_nbsd_vec
225247f0 4672#undef TARGET_BIG_NAME
914dfb0f 4673#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4674#undef ELF_OSABI
4675#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4676#undef elf32_bed
4677#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4678
4679#include "elf32-target.h"
This page took 1.306285 seconds and 4 git commands to generate.