Automatic date update in version.in
[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 */
d003868e 839 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 840 hsh->target_section->owner,
d003868e 841 stub_sec,
875c0872 842 (long) 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. */
1174 hh->eh.root.non_ir_ref = 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
595e0a47
AM
1922/* Make an undefined weak symbol dynamic. */
1923
1924static bfd_boolean
1925ensure_undef_weak_dynamic (struct bfd_link_info *info,
1926 struct elf_link_hash_entry *eh)
1927{
1928 if (eh->dynindx == -1
1929 && !eh->forced_local
1930 && eh->type != STT_PARISC_MILLI
1931 && eh->root.type == bfd_link_hash_undefweak
1932 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1933 return bfd_elf_link_record_dynamic_symbol (info, eh);
1934 return TRUE;
1935}
1936
e5ee5df1 1937/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1938 ie. plabel entries. */
a8d02d66 1939
b34976b6 1940static bfd_boolean
875c0872 1941allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1942{
1943 struct bfd_link_info *info;
1944 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1945 struct elf32_hppa_link_hash_entry *hh;
1946 asection *sec;
a8d02d66 1947
875c0872 1948 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1949 return TRUE;
a8d02d66 1950
875c0872 1951 info = (struct bfd_link_info *) inf;
9b52905e 1952 hh = hppa_elf_hash_entry (eh);
a8d02d66 1953 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1954 if (htab == NULL)
1955 return FALSE;
1956
a63e02c7 1957 if (htab->etab.dynamic_sections_created
875c0872 1958 && eh->plt.refcount > 0)
e5ee5df1 1959 {
595e0a47
AM
1960 if (!ensure_undef_weak_dynamic (info, eh))
1961 return FALSE;
e5ee5df1 1962
0e1862bb 1963 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
e5ee5df1 1964 {
067fa4a6
AM
1965 /* Allocate these later. From this point on, h->plabel
1966 means that the plt entry is only used by a plabel.
1967 We'll be using a normal plt entry for this symbol, so
1968 clear the plabel indicator. */
68ffbac6 1969
875c0872 1970 hh->plabel = 0;
e5ee5df1 1971 }
875c0872 1972 else if (hh->plabel)
e5ee5df1
AM
1973 {
1974 /* Make an entry in the .plt section for plabel references
1975 that won't have a .plt entry for other reasons. */
ce558b89 1976 sec = htab->etab.splt;
875c0872
DA
1977 eh->plt.offset = sec->size;
1978 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1979 }
1980 else
e5ee5df1
AM
1981 {
1982 /* No .plt entry needed. */
875c0872
DA
1983 eh->plt.offset = (bfd_vma) -1;
1984 eh->needs_plt = 0;
e5ee5df1
AM
1985 }
1986 }
1987 else
1988 {
875c0872
DA
1989 eh->plt.offset = (bfd_vma) -1;
1990 eh->needs_plt = 0;
a8d02d66
AM
1991 }
1992
b34976b6 1993 return TRUE;
a8d02d66
AM
1994}
1995
4dc86686
AM
1996/* Allocate space in .plt, .got and associated reloc sections for
1997 global syms. */
1998
b34976b6 1999static bfd_boolean
875c0872 2000allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
2001{
2002 struct bfd_link_info *info;
83c81bfe 2003 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2004 asection *sec;
2005 struct elf32_hppa_link_hash_entry *hh;
2006 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2007
875c0872 2008 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2009 return TRUE;
73a74a62 2010
c39a58e6 2011 info = inf;
83c81bfe 2012 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2013 if (htab == NULL)
2014 return FALSE;
2015
875c0872 2016 hh = hppa_elf_hash_entry (eh);
68ffbac6 2017
a63e02c7 2018 if (htab->etab.dynamic_sections_created
875c0872
DA
2019 && eh->plt.offset != (bfd_vma) -1
2020 && !hh->plabel
2021 && eh->plt.refcount > 0)
4dc86686 2022 {
e5ee5df1 2023 /* Make an entry in the .plt section. */
ce558b89 2024 sec = htab->etab.splt;
875c0872
DA
2025 eh->plt.offset = sec->size;
2026 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2027
e5ee5df1 2028 /* We also need to make an entry in the .rela.plt section. */
ce558b89 2029 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2030 htab->need_plt_stub = 1;
4dc86686 2031 }
edd21aca 2032
875c0872 2033 if (eh->got.refcount > 0)
4dc86686 2034 {
595e0a47
AM
2035 if (!ensure_undef_weak_dynamic (info, eh))
2036 return FALSE;
446f2863 2037
ce558b89 2038 sec = htab->etab.sgot;
875c0872
DA
2039 eh->got.offset = sec->size;
2040 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2041 /* R_PARISC_TLS_GD* needs two GOT entries */
2042 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2043 sec->size += GOT_ENTRY_SIZE * 2;
2044 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2045 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2046 if (htab->etab.dynamic_sections_created
0e1862bb 2047 && (bfd_link_pic (info)
875c0872
DA
2048 || (eh->dynindx != -1
2049 && !eh->forced_local)))
ce757d15 2050 {
ce558b89 2051 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e 2052 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
ce558b89 2053 htab->etab.srelgot->size += 2 * sizeof (Elf32_External_Rela);
9b52905e 2054 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
ce558b89 2055 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2056 }
4dc86686
AM
2057 }
2058 else
875c0872 2059 eh->got.offset = (bfd_vma) -1;
30667bf3 2060
875c0872 2061 if (hh->dyn_relocs == NULL)
b34976b6 2062 return TRUE;
30667bf3 2063
98ceb8ce
AM
2064 /* If this is a -Bsymbolic shared link, then we need to discard all
2065 space allocated for dynamic pc-relative relocs against symbols
2066 defined in a regular object. For the normal shared case, discard
2067 space for relocs that have become local due to symbol visibility
2068 changes. */
0e1862bb 2069 if (bfd_link_pic (info))
446f2863 2070 {
98ceb8ce 2071#if RELATIVE_DYNRELOCS
875c0872 2072 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2073 {
875c0872 2074 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2075
875c0872 2076 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2077 {
875c0872
DA
2078 hdh_p->count -= hdh_p->relative_count;
2079 hdh_p->relative_count = 0;
2080 if (hdh_p->count == 0)
a63e02c7 2081 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2082 else
a63e02c7 2083 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2084 }
2085 }
2086#endif
4fc8051d
AM
2087
2088 /* Also discard relocs on undefined weak syms with non-default
2089 visibility. */
22d606e9 2090 if (hh->dyn_relocs != NULL
875c0872 2091 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2092 {
2093 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2094 hh->dyn_relocs = NULL;
2095
595e0a47
AM
2096 else if (!ensure_undef_weak_dynamic (info, eh))
2097 return FALSE;
22d606e9 2098 }
446f2863 2099 }
98ceb8ce 2100 else
30667bf3 2101 {
98ceb8ce
AM
2102 /* For the non-shared case, discard space for relocs against
2103 symbols which turn out to need copy relocs or are not
2104 dynamic. */
68ffbac6 2105
875c0872 2106 if (!eh->non_got_ref
4fc8051d 2107 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2108 && eh->def_dynamic
2109 && !eh->def_regular)
a63e02c7 2110 || (htab->etab.dynamic_sections_created
875c0872
DA
2111 && (eh->root.type == bfd_link_hash_undefweak
2112 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce 2113 {
595e0a47
AM
2114 if (!ensure_undef_weak_dynamic (info, eh))
2115 return FALSE;
98ceb8ce
AM
2116
2117 /* If that succeeded, we know we'll be keeping all the
2118 relocs. */
875c0872 2119 if (eh->dynindx != -1)
98ceb8ce
AM
2120 goto keep;
2121 }
446f2863 2122
875c0872 2123 hh->dyn_relocs = NULL;
b34976b6 2124 return TRUE;
98ceb8ce 2125
ec338859 2126 keep: ;
30667bf3 2127 }
30667bf3 2128
98ceb8ce 2129 /* Finally, allocate space. */
a63e02c7 2130 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2131 {
875c0872
DA
2132 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2133 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2134 }
30667bf3 2135
b34976b6 2136 return TRUE;
30667bf3 2137}
30667bf3 2138
d5c73c2f
AM
2139/* This function is called via elf_link_hash_traverse to force
2140 millicode symbols local so they do not end up as globals in the
2141 dynamic symbol table. We ought to be able to do this in
2142 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2143 for all dynamic symbols. Arguably, this is a bug in
2144 elf_adjust_dynamic_symbol. */
2145
b34976b6 2146static bfd_boolean
875c0872 2147clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2148 struct bfd_link_info *info)
d5c73c2f 2149{
875c0872
DA
2150 if (eh->type == STT_PARISC_MILLI
2151 && !eh->forced_local)
e0522e89 2152 {
875c0872 2153 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2154 }
b34976b6 2155 return TRUE;
d5c73c2f
AM
2156}
2157
98ceb8ce
AM
2158/* Find any dynamic relocs that apply to read-only sections. */
2159
b34976b6 2160static bfd_boolean
875c0872 2161readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2162{
875c0872
DA
2163 struct elf32_hppa_link_hash_entry *hh;
2164 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2165
875c0872 2166 hh = hppa_elf_hash_entry (eh);
a63e02c7 2167 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2168 {
875c0872 2169 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2170
875c0872 2171 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2172 {
c39a58e6 2173 struct bfd_link_info *info = inf;
98ceb8ce
AM
2174
2175 info->flags |= DF_TEXTREL;
2176
2177 /* Not an error, just cut short the traversal. */
b34976b6 2178 return FALSE;
98ceb8ce
AM
2179 }
2180 }
b34976b6 2181 return TRUE;
98ceb8ce
AM
2182}
2183
30667bf3
AM
2184/* Set the sizes of the dynamic sections. */
2185
b34976b6 2186static bfd_boolean
c39a58e6
AM
2187elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2188 struct bfd_link_info *info)
30667bf3 2189{
83c81bfe 2190 struct elf32_hppa_link_hash_table *htab;
30667bf3 2191 bfd *dynobj;
98ceb8ce 2192 bfd *ibfd;
875c0872 2193 asection *sec;
b34976b6 2194 bfd_boolean relocs;
30667bf3 2195
83c81bfe 2196 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2197 if (htab == NULL)
2198 return FALSE;
2199
a63e02c7 2200 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2201 if (dynobj == NULL)
2202 abort ();
30667bf3 2203
a63e02c7 2204 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2205 {
2206 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2207 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2208 {
3d4d4302 2209 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2210 if (sec == NULL)
49e9d0d3 2211 abort ();
875c0872
DA
2212 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2213 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2214 }
74d1c347 2215
d5c73c2f 2216 /* Force millicode symbols local. */
a63e02c7 2217 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2218 clobber_millicode_symbols,
2219 info);
68fb2e56 2220 }
d5c73c2f 2221
98ceb8ce
AM
2222 /* Set up .got and .plt offsets for local syms, and space for local
2223 dynamic relocs. */
c72f2fb2 2224 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2225 {
2226 bfd_signed_vma *local_got;
2227 bfd_signed_vma *end_local_got;
2228 bfd_signed_vma *local_plt;
2229 bfd_signed_vma *end_local_plt;
2230 bfd_size_type locsymcount;
2231 Elf_Internal_Shdr *symtab_hdr;
2232 asection *srel;
9b52905e 2233 char *local_tls_type;
74d1c347 2234
98ceb8ce 2235 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2236 continue;
4dc86686 2237
875c0872 2238 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2239 {
875c0872 2240 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2241
875c0872
DA
2242 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2243 elf_section_data (sec)->local_dynrel);
2244 hdh_p != NULL;
a63e02c7 2245 hdh_p = hdh_p->hdh_next)
98ceb8ce 2246 {
875c0872
DA
2247 if (!bfd_is_abs_section (hdh_p->sec)
2248 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2249 {
2250 /* Input section has been discarded, either because
2251 it is a copy of a linkonce section or due to
2252 linker script /DISCARD/, so we'll be discarding
2253 the relocs too. */
2254 }
875c0872 2255 else if (hdh_p->count != 0)
ec338859 2256 {
875c0872
DA
2257 srel = elf_section_data (hdh_p->sec)->sreloc;
2258 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2259 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2260 info->flags |= DF_TEXTREL;
ec338859 2261 }
98ceb8ce
AM
2262 }
2263 }
2264
2265 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2266 if (!local_got)
2267 continue;
74d1c347 2268
98ceb8ce 2269 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2270 locsymcount = symtab_hdr->sh_info;
2271 end_local_got = local_got + locsymcount;
9b52905e 2272 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
ce558b89
AM
2273 sec = htab->etab.sgot;
2274 srel = htab->etab.srelgot;
68fb2e56
AM
2275 for (; local_got < end_local_got; ++local_got)
2276 {
2277 if (*local_got > 0)
4dc86686 2278 {
875c0872
DA
2279 *local_got = sec->size;
2280 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2281 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2282 sec->size += 2 * GOT_ENTRY_SIZE;
2283 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2284 sec->size += GOT_ENTRY_SIZE;
0e1862bb 2285 if (bfd_link_pic (info))
9b52905e
NC
2286 {
2287 srel->size += sizeof (Elf32_External_Rela);
2288 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2289 srel->size += 2 * sizeof (Elf32_External_Rela);
2290 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2291 srel->size += sizeof (Elf32_External_Rela);
2292 }
4dc86686 2293 }
68fb2e56
AM
2294 else
2295 *local_got = (bfd_vma) -1;
9b52905e
NC
2296
2297 ++local_tls_type;
68fb2e56 2298 }
74d1c347 2299
68fb2e56
AM
2300 local_plt = end_local_got;
2301 end_local_plt = local_plt + locsymcount;
a63e02c7 2302 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2303 {
2304 /* Won't be used, but be safe. */
2305 for (; local_plt < end_local_plt; ++local_plt)
2306 *local_plt = (bfd_vma) -1;
2307 }
2308 else
2309 {
ce558b89
AM
2310 sec = htab->etab.splt;
2311 srel = htab->etab.srelplt;
74d1c347
AM
2312 for (; local_plt < end_local_plt; ++local_plt)
2313 {
2314 if (*local_plt > 0)
2315 {
875c0872
DA
2316 *local_plt = sec->size;
2317 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2318 if (bfd_link_pic (info))
eea6121a 2319 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2320 }
2321 else
2322 *local_plt = (bfd_vma) -1;
2323 }
2324 }
30667bf3 2325 }
68ffbac6 2326
9b52905e
NC
2327 if (htab->tls_ldm_got.refcount > 0)
2328 {
68ffbac6 2329 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e 2330 R_PARISC_TLS_DTPMOD32 relocs. */
ce558b89
AM
2331 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2332 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2333 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2334 }
2335 else
2336 htab->tls_ldm_got.offset = -1;
30667bf3 2337
e5ee5df1
AM
2338 /* Do all the .plt entries without relocs first. The dynamic linker
2339 uses the last .plt reloc to find the end of the .plt (and hence
2340 the start of the .got) for lazy linking. */
a63e02c7 2341 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2342
98ceb8ce
AM
2343 /* Allocate global sym .plt and .got entries, and space for global
2344 sym dynamic relocs. */
a63e02c7 2345 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2346
2347 /* The check_relocs and adjust_dynamic_symbol entry points have
2348 determined the sizes of the various dynamic sections. Allocate
2349 memory for them. */
b34976b6 2350 relocs = FALSE;
875c0872 2351 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2352 {
875c0872 2353 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2354 continue;
2355
ce558b89 2356 if (sec == htab->etab.splt)
68fb2e56 2357 {
83c81bfe 2358 if (htab->need_plt_stub)
68fb2e56
AM
2359 {
2360 /* Make space for the plt stub at the end of the .plt
2361 section. We want this stub right at the end, up
2362 against the .got section. */
ce558b89 2363 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
875c0872 2364 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2365 bfd_size_type mask;
30667bf3 2366
68fb2e56 2367 if (gotalign > pltalign)
a253d456 2368 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2369 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2370 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2371 }
2372 }
ce558b89 2373 else if (sec == htab->etab.sgot
5474d94f
AM
2374 || sec == htab->etab.sdynbss
2375 || sec == htab->etab.sdynrelro)
68fb2e56 2376 ;
0112cd26 2377 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2378 {
875c0872 2379 if (sec->size != 0)
30667bf3 2380 {
4e12ff7f
AM
2381 /* Remember whether there are any reloc sections other
2382 than .rela.plt. */
ce558b89 2383 if (sec != htab->etab.srelplt)
b34976b6 2384 relocs = TRUE;
47d89dba 2385
30667bf3
AM
2386 /* We use the reloc_count field as a counter if we need
2387 to copy relocs into the output file. */
875c0872 2388 sec->reloc_count = 0;
30667bf3
AM
2389 }
2390 }
30667bf3
AM
2391 else
2392 {
2393 /* It's not one of our sections, so don't allocate space. */
2394 continue;
2395 }
2396
875c0872 2397 if (sec->size == 0)
30667bf3
AM
2398 {
2399 /* If we don't need this section, strip it from the
2400 output file. This is mostly to handle .rela.bss and
2401 .rela.plt. We must create both sections in
2402 create_dynamic_sections, because they must be created
2403 before the linker maps input sections to output
2404 sections. The linker does that before
2405 adjust_dynamic_symbol is called, and it is that
2406 function which decides whether anything needs to go
2407 into these sections. */
875c0872 2408 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2409 continue;
2410 }
2411
c456f082
AM
2412 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2413 continue;
2414
30667bf3
AM
2415 /* Allocate memory for the section contents. Zero it, because
2416 we may not fill in all the reloc sections. */
875c0872 2417 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2418 if (sec->contents == NULL)
b34976b6 2419 return FALSE;
30667bf3
AM
2420 }
2421
a63e02c7 2422 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2423 {
2424 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2425 actually has nothing to do with the PLT, it is how we
2426 communicate the LTP value of a load module to the dynamic
2427 linker. */
dc810e39 2428#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2429 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2430
2431 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2432 return FALSE;
30667bf3
AM
2433
2434 /* Add some entries to the .dynamic section. We fill in the
2435 values later, in elf32_hppa_finish_dynamic_sections, but we
2436 must add the entries now so that we get the correct size for
2437 the .dynamic section. The DT_DEBUG entry is filled in by the
2438 dynamic linker and used by the debugger. */
0e1862bb 2439 if (bfd_link_executable (info))
30667bf3 2440 {
dc810e39 2441 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2442 return FALSE;
30667bf3
AM
2443 }
2444
ce558b89 2445 if (htab->etab.srelplt->size != 0)
30667bf3 2446 {
dc810e39
AM
2447 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2448 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2449 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2450 return FALSE;
30667bf3
AM
2451 }
2452
2453 if (relocs)
2454 {
dc810e39
AM
2455 if (!add_dynamic_entry (DT_RELA, 0)
2456 || !add_dynamic_entry (DT_RELASZ, 0)
2457 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2458 return FALSE;
30667bf3 2459
98ceb8ce
AM
2460 /* If any dynamic relocs apply to a read-only section,
2461 then we need a DT_TEXTREL entry. */
248866a8 2462 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2463 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2464
2465 if ((info->flags & DF_TEXTREL) != 0)
2466 {
2467 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2468 return FALSE;
98ceb8ce 2469 }
30667bf3
AM
2470 }
2471 }
dc810e39 2472#undef add_dynamic_entry
30667bf3 2473
b34976b6 2474 return TRUE;
30667bf3
AM
2475}
2476
30667bf3
AM
2477/* External entry points for sizing and building linker stubs. */
2478
b4655ea9
AM
2479/* Set up various things so that we can make a list of input sections
2480 for each output section included in the link. Returns -1 on error,
cedb70c5 2481 0 when no stubs will be needed, and 1 on success. */
30667bf3 2482
b4655ea9 2483int
c39a58e6 2484elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2485{
2486 bfd *input_bfd;
b4655ea9 2487 unsigned int bfd_count;
7292b3ac 2488 unsigned int top_id, top_index;
30667bf3 2489 asection *section;
25f72752 2490 asection **input_list, **list;
dc810e39 2491 bfd_size_type amt;
b4655ea9 2492 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2493
4dfe6ac6
NC
2494 if (htab == NULL)
2495 return -1;
2496
1badb539
AM
2497 /* Count the number of input BFDs and find the top input section id. */
2498 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2499 input_bfd != NULL;
c72f2fb2 2500 input_bfd = input_bfd->link.next)
30667bf3
AM
2501 {
2502 bfd_count += 1;
25f72752
AM
2503 for (section = input_bfd->sections;
2504 section != NULL;
2505 section = section->next)
2506 {
2507 if (top_id < section->id)
2508 top_id = section->id;
2509 }
30667bf3 2510 }
b4655ea9 2511 htab->bfd_count = bfd_count;
30667bf3 2512
dc810e39 2513 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2514 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2515 if (htab->stub_group == NULL)
b4655ea9 2516 return -1;
1badb539 2517
b4655ea9 2518 /* We can't use output_bfd->section_count here to find the top output
1badb539 2519 section index as some sections may have been removed, and
8423293d 2520 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2521 for (section = output_bfd->sections, top_index = 0;
2522 section != NULL;
2523 section = section->next)
2524 {
2525 if (top_index < section->index)
2526 top_index = section->index;
2527 }
2528
b4655ea9 2529 htab->top_index = top_index;
dc810e39 2530 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2531 input_list = bfd_malloc (amt);
b4655ea9 2532 htab->input_list = input_list;
25f72752 2533 if (input_list == NULL)
b4655ea9 2534 return -1;
25f72752 2535
1badb539
AM
2536 /* For sections we aren't interested in, mark their entries with a
2537 value we can check later. */
2538 list = input_list + top_index;
2539 do
2540 *list = bfd_abs_section_ptr;
2541 while (list-- != input_list);
2542
2543 for (section = output_bfd->sections;
2544 section != NULL;
2545 section = section->next)
2546 {
47d89dba 2547 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2548 input_list[section->index] = NULL;
2549 }
2550
b4655ea9
AM
2551 return 1;
2552}
2553
2554/* The linker repeatedly calls this function for each input section,
2555 in the order that input sections are linked into output sections.
2556 Build lists of input sections to determine groupings between which
2557 we may insert linker stubs. */
2558
2559void
c39a58e6 2560elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2561{
2562 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2563
4dfe6ac6
NC
2564 if (htab == NULL)
2565 return;
2566
b4655ea9 2567 if (isec->output_section->index <= htab->top_index)
25f72752 2568 {
b4655ea9
AM
2569 asection **list = htab->input_list + isec->output_section->index;
2570 if (*list != bfd_abs_section_ptr)
25f72752 2571 {
b4655ea9 2572 /* Steal the link_sec pointer for our list. */
83c81bfe 2573#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2574 /* This happens to make the list in reverse order,
2575 which is what we want. */
2576 PREV_SEC (isec) = *list;
2577 *list = isec;
25f72752
AM
2578 }
2579 }
b4655ea9 2580}
25f72752 2581
b4655ea9
AM
2582/* See whether we can group stub sections together. Grouping stub
2583 sections may result in fewer stubs. More importantly, we need to
2584 put all .init* and .fini* stubs at the beginning of the .init or
2585 .fini output sections respectively, because glibc splits the
2586 _init and _fini functions into multiple parts. Putting a stub in
2587 the middle of a function is not a good idea. */
2588
2589static void
c39a58e6
AM
2590group_sections (struct elf32_hppa_link_hash_table *htab,
2591 bfd_size_type stub_group_size,
2592 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2593{
2594 asection **list = htab->input_list + htab->top_index;
1badb539 2595 do
25f72752
AM
2596 {
2597 asection *tail = *list;
1badb539
AM
2598 if (tail == bfd_abs_section_ptr)
2599 continue;
25f72752
AM
2600 while (tail != NULL)
2601 {
2602 asection *curr;
2603 asection *prev;
2604 bfd_size_type total;
00b28bb0 2605 bfd_boolean big_sec;
25f72752
AM
2606
2607 curr = tail;
eea6121a 2608 total = tail->size;
00b28bb0
AM
2609 big_sec = total >= stub_group_size;
2610
25f72752
AM
2611 while ((prev = PREV_SEC (curr)) != NULL
2612 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2613 < stub_group_size))
25f72752
AM
2614 curr = prev;
2615
2616 /* OK, the size from the start of CURR to the end is less
a248e267 2617 than 240000 bytes and thus can be handled by one stub
25f72752 2618 section. (or the tail section is itself larger than
a248e267 2619 240000 bytes, in which case we may be toast.)
25f72752
AM
2620 We should really be keeping track of the total size of
2621 stubs added here, as stubs contribute to the final output
2622 section size. That's a little tricky, and this way will
a248e267
AM
2623 only break if stubs added total more than 22144 bytes, or
2624 2768 long branch stubs. It seems unlikely for more than
2625 2768 different functions to be called, especially from
2626 code only 240000 bytes long. This limit used to be
2627 250000, but c++ code tends to generate lots of little
2628 functions, and sometimes violated the assumption. */
25f72752
AM
2629 do
2630 {
2631 prev = PREV_SEC (tail);
2632 /* Set up this stub group. */
83c81bfe 2633 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2634 }
2635 while (tail != curr && (tail = prev) != NULL);
2636
a248e267 2637 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2638 bytes before the stub section can be handled by it too.
2639 Don't do this if we have a really large section after the
2640 stubs, as adding more stubs increases the chance that
2641 branches may not reach into the stub section. */
2642 if (!stubs_always_before_branch && !big_sec)
25f72752 2643 {
47d89dba
AM
2644 total = 0;
2645 while (prev != NULL
2646 && ((total += tail->output_offset - prev->output_offset)
2647 < stub_group_size))
2648 {
2649 tail = prev;
2650 prev = PREV_SEC (tail);
83c81bfe 2651 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2652 }
25f72752
AM
2653 }
2654 tail = prev;
2655 }
2656 }
b4655ea9
AM
2657 while (list-- != htab->input_list);
2658 free (htab->input_list);
1badb539 2659#undef PREV_SEC
b4655ea9
AM
2660}
2661
2662/* Read in all local syms for all input bfds, and create hash entries
2663 for export stubs if we are building a multi-subspace shared lib.
2664 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2665
2666static int
c39a58e6 2667get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2668{
2669 unsigned int bfd_indx;
2670 Elf_Internal_Sym *local_syms, **all_local_syms;
2671 int stub_changed = 0;
2672 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2673
4dfe6ac6
NC
2674 if (htab == NULL)
2675 return -1;
2676
30667bf3
AM
2677 /* We want to read in symbol extension records only once. To do this
2678 we need to read in the local symbols in parallel and save them for
2679 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2680 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2681 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2682 htab->all_local_syms = all_local_syms;
30667bf3 2683 if (all_local_syms == NULL)
b4655ea9 2684 return -1;
30667bf3
AM
2685
2686 /* Walk over all the input BFDs, swapping in local symbols.
2687 If we are creating a shared library, create hash entries for the
2688 export stubs. */
b4655ea9 2689 for (bfd_indx = 0;
30667bf3 2690 input_bfd != NULL;
c72f2fb2 2691 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2692 {
2693 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2694
252b5132
RH
2695 /* We'll need the symbol table in a second. */
2696 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2697 if (symtab_hdr->sh_info == 0)
2698 continue;
2699
6cdc0ccc
AM
2700 /* We need an array of the local symbols attached to the input bfd. */
2701 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2702 if (local_syms == NULL)
edd21aca 2703 {
6cdc0ccc
AM
2704 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2705 symtab_hdr->sh_info, 0,
2706 NULL, NULL, NULL);
2707 /* Cache them for elf_link_input_bfd. */
2708 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2709 }
6cdc0ccc
AM
2710 if (local_syms == NULL)
2711 return -1;
edd21aca 2712
6cdc0ccc 2713 all_local_syms[bfd_indx] = local_syms;
edd21aca 2714
0e1862bb 2715 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2716 {
875c0872
DA
2717 struct elf_link_hash_entry **eh_syms;
2718 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2719 unsigned int symcount;
2720
2721 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2722 - symtab_hdr->sh_info);
875c0872
DA
2723 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2724 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2725
2726 /* Look through the global syms for functions; We need to
2727 build export stubs for all globally visible functions. */
875c0872 2728 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2729 {
875c0872 2730 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2731
875c0872 2732 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2733
a63e02c7
DA
2734 while (hh->eh.root.type == bfd_link_hash_indirect
2735 || hh->eh.root.type == bfd_link_hash_warning)
2736 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2737
2738 /* At this point in the link, undefined syms have been
2739 resolved, so we need to check that the symbol was
2740 defined in this BFD. */
a63e02c7
DA
2741 if ((hh->eh.root.type == bfd_link_hash_defined
2742 || hh->eh.root.type == bfd_link_hash_defweak)
2743 && hh->eh.type == STT_FUNC
2744 && hh->eh.root.u.def.section->output_section != NULL
2745 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2746 == output_bfd)
a63e02c7
DA
2747 && hh->eh.root.u.def.section->owner == input_bfd
2748 && hh->eh.def_regular
2749 && !hh->eh.forced_local
2750 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2751 {
2752 asection *sec;
2753 const char *stub_name;
875c0872 2754 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2755
a63e02c7 2756 sec = hh->eh.root.u.def.section;
9b52905e 2757 stub_name = hh_name (hh);
a63e02c7 2758 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2759 stub_name,
b34976b6 2760 FALSE, FALSE);
875c0872 2761 if (hsh == NULL)
30667bf3 2762 {
875c0872
DA
2763 hsh = hppa_add_stub (stub_name, sec, htab);
2764 if (!hsh)
b4655ea9 2765 return -1;
30667bf3 2766
a63e02c7
DA
2767 hsh->target_value = hh->eh.root.u.def.value;
2768 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2769 hsh->stub_type = hppa_stub_export;
a63e02c7 2770 hsh->hh = hh;
30667bf3
AM
2771 stub_changed = 1;
2772 }
2773 else
2774 {
695344c0 2775 /* xgettext:c-format */
4eca0228
AM
2776 _bfd_error_handler (_("%B: duplicate export stub %s"),
2777 input_bfd, stub_name);
30667bf3
AM
2778 }
2779 }
2780 }
30667bf3
AM
2781 }
2782 }
edd21aca 2783
b4655ea9
AM
2784 return stub_changed;
2785}
2786
2787/* Determine and set the size of the stub section for a final link.
2788
2789 The basic idea here is to examine all the relocations looking for
2790 PC-relative calls to a target that is unreachable with a "bl"
2791 instruction. */
2792
b34976b6 2793bfd_boolean
c39a58e6
AM
2794elf32_hppa_size_stubs
2795 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2796 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2797 asection * (*add_stub_section) (const char *, asection *),
2798 void (*layout_sections_again) (void))
b4655ea9
AM
2799{
2800 bfd_size_type stub_group_size;
b34976b6
AM
2801 bfd_boolean stubs_always_before_branch;
2802 bfd_boolean stub_changed;
b4655ea9
AM
2803 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2804
4dfe6ac6
NC
2805 if (htab == NULL)
2806 return FALSE;
2807
b4655ea9
AM
2808 /* Stash our params away. */
2809 htab->stub_bfd = stub_bfd;
2810 htab->multi_subspace = multi_subspace;
2811 htab->add_stub_section = add_stub_section;
2812 htab->layout_sections_again = layout_sections_again;
2813 stubs_always_before_branch = group_size < 0;
2814 if (group_size < 0)
2815 stub_group_size = -group_size;
2816 else
2817 stub_group_size = group_size;
2818 if (stub_group_size == 1)
2819 {
2820 /* Default values. */
acc990f2
AM
2821 if (stubs_always_before_branch)
2822 {
2823 stub_group_size = 7680000;
2824 if (htab->has_17bit_branch || htab->multi_subspace)
2825 stub_group_size = 240000;
2826 if (htab->has_12bit_branch)
2827 stub_group_size = 7500;
2828 }
2829 else
2830 {
2831 stub_group_size = 6971392;
2832 if (htab->has_17bit_branch || htab->multi_subspace)
2833 stub_group_size = 217856;
2834 if (htab->has_12bit_branch)
2835 stub_group_size = 6808;
2836 }
b4655ea9
AM
2837 }
2838
2839 group_sections (htab, stub_group_size, stubs_always_before_branch);
2840
2841 switch (get_local_syms (output_bfd, info->input_bfds, info))
2842 {
2843 default:
2844 if (htab->all_local_syms)
2845 goto error_ret_free_local;
b34976b6 2846 return FALSE;
b4655ea9
AM
2847
2848 case 0:
b34976b6 2849 stub_changed = FALSE;
b4655ea9
AM
2850 break;
2851
2852 case 1:
b34976b6 2853 stub_changed = TRUE;
b4655ea9
AM
2854 break;
2855 }
2856
edd21aca
AM
2857 while (1)
2858 {
b4655ea9
AM
2859 bfd *input_bfd;
2860 unsigned int bfd_indx;
30667bf3
AM
2861 asection *stub_sec;
2862
25f72752 2863 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2864 input_bfd != NULL;
c72f2fb2 2865 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2866 {
2867 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2868 asection *section;
2869 Elf_Internal_Sym *local_syms;
30667bf3
AM
2870
2871 /* We'll need the symbol table in a second. */
2872 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2873 if (symtab_hdr->sh_info == 0)
2874 continue;
2875
b4655ea9 2876 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2877
2878 /* Walk over each section attached to the input bfd. */
2879 for (section = input_bfd->sections;
2880 section != NULL;
25f72752 2881 section = section->next)
30667bf3 2882 {
30667bf3
AM
2883 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2884
2885 /* If there aren't any relocs, then there's nothing more
2886 to do. */
2887 if ((section->flags & SEC_RELOC) == 0
2888 || section->reloc_count == 0)
2889 continue;
2890
25f72752
AM
2891 /* If this section is a link-once section that will be
2892 discarded, then don't create any stubs. */
2893 if (section->output_section == NULL
2894 || section->output_section->owner != output_bfd)
2895 continue;
2896
1e2f5b6e
AM
2897 /* Get the relocs. */
2898 internal_relocs
c39a58e6 2899 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2900 info->keep_memory);
30667bf3 2901 if (internal_relocs == NULL)
1e2f5b6e 2902 goto error_ret_free_local;
30667bf3
AM
2903
2904 /* Now examine each relocation. */
2905 irela = internal_relocs;
2906 irelaend = irela + section->reloc_count;
2907 for (; irela < irelaend; irela++)
2908 {
2909 unsigned int r_type, r_indx;
2910 enum elf32_hppa_stub_type stub_type;
875c0872 2911 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2912 asection *sym_sec;
2913 bfd_vma sym_value;
2914 bfd_vma destination;
875c0872 2915 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2916 char *stub_name;
25f72752 2917 const asection *id_sec;
30667bf3
AM
2918
2919 r_type = ELF32_R_TYPE (irela->r_info);
2920 r_indx = ELF32_R_SYM (irela->r_info);
2921
2922 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2923 {
2924 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2925 error_ret_free_internal:
2926 if (elf_section_data (section)->relocs == NULL)
2927 free (internal_relocs);
2928 goto error_ret_free_local;
30667bf3
AM
2929 }
2930
2931 /* Only look for stubs on call instructions. */
2932 if (r_type != (unsigned int) R_PARISC_PCREL12F
2933 && r_type != (unsigned int) R_PARISC_PCREL17F
2934 && r_type != (unsigned int) R_PARISC_PCREL22F)
2935 continue;
2936
2937 /* Now determine the call target, its name, value,
2938 section. */
2939 sym_sec = NULL;
2940 sym_value = 0;
2941 destination = 0;
875c0872 2942 hh = NULL;
30667bf3
AM
2943 if (r_indx < symtab_hdr->sh_info)
2944 {
2945 /* It's a local symbol. */
2946 Elf_Internal_Sym *sym;
2947 Elf_Internal_Shdr *hdr;
4fbb74a6 2948 unsigned int shndx;
30667bf3
AM
2949
2950 sym = local_syms + r_indx;
30667bf3
AM
2951 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2952 sym_value = sym->st_value;
4fbb74a6
AM
2953 shndx = sym->st_shndx;
2954 if (shndx < elf_numsections (input_bfd))
2955 {
2956 hdr = elf_elfsections (input_bfd)[shndx];
2957 sym_sec = hdr->bfd_section;
2958 destination = (sym_value + irela->r_addend
2959 + sym_sec->output_offset
2960 + sym_sec->output_section->vma);
2961 }
30667bf3
AM
2962 }
2963 else
2964 {
2965 /* It's an external symbol. */
2966 int e_indx;
2967
2968 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2969 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2970
a63e02c7
DA
2971 while (hh->eh.root.type == bfd_link_hash_indirect
2972 || hh->eh.root.type == bfd_link_hash_warning)
2973 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2974
a63e02c7
DA
2975 if (hh->eh.root.type == bfd_link_hash_defined
2976 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2977 {
a63e02c7
DA
2978 sym_sec = hh->eh.root.u.def.section;
2979 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2980 if (sym_sec->output_section != NULL)
2981 destination = (sym_value + irela->r_addend
2982 + sym_sec->output_offset
2983 + sym_sec->output_section->vma);
2984 }
a63e02c7 2985 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 2986 {
0e1862bb 2987 if (! bfd_link_pic (info))
c432ba1a
AM
2988 continue;
2989 }
a63e02c7 2990 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2991 {
59c2e50f 2992 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2993 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2994 == STV_DEFAULT)
a63e02c7 2995 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
2996 continue;
2997 }
30667bf3
AM
2998 else
2999 {
3000 bfd_set_error (bfd_error_bad_value);
3001 goto error_ret_free_internal;
3002 }
3003 }
3004
3005 /* Determine what (if any) linker stub is needed. */
875c0872 3006 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3007 destination, info);
30667bf3
AM
3008 if (stub_type == hppa_stub_none)
3009 continue;
3010
25f72752 3011 /* Support for grouping stub sections. */
83c81bfe 3012 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3013
30667bf3 3014 /* Get the name of this stub. */
875c0872 3015 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3016 if (!stub_name)
3017 goto error_ret_free_internal;
3018
a63e02c7 3019 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3020 stub_name,
b34976b6 3021 FALSE, FALSE);
875c0872 3022 if (hsh != NULL)
30667bf3
AM
3023 {
3024 /* The proper stub has already been created. */
3025 free (stub_name);
3026 continue;
3027 }
3028
875c0872
DA
3029 hsh = hppa_add_stub (stub_name, section, htab);
3030 if (hsh == NULL)
30667bf3
AM
3031 {
3032 free (stub_name);
1e2f5b6e 3033 goto error_ret_free_internal;
30667bf3
AM
3034 }
3035
875c0872
DA
3036 hsh->target_value = sym_value;
3037 hsh->target_section = sym_sec;
3038 hsh->stub_type = stub_type;
0e1862bb 3039 if (bfd_link_pic (info))
30667bf3
AM
3040 {
3041 if (stub_type == hppa_stub_import)
875c0872 3042 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3043 else if (stub_type == hppa_stub_long_branch)
875c0872 3044 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3045 }
a63e02c7 3046 hsh->hh = hh;
b34976b6 3047 stub_changed = TRUE;
30667bf3
AM
3048 }
3049
3050 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3051 if (elf_section_data (section)->relocs == NULL)
3052 free (internal_relocs);
30667bf3
AM
3053 }
3054 }
3055
3056 if (!stub_changed)
3057 break;
3058
3059 /* OK, we've added some stubs. Find out the new size of the
3060 stub sections. */
83c81bfe 3061 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3062 stub_sec != NULL;
3063 stub_sec = stub_sec->next)
a464198b
AM
3064 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3065 stub_sec->size = 0;
74d1c347 3066
a63e02c7 3067 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3068
30667bf3 3069 /* Ask the linker to do its stuff. */
83c81bfe 3070 (*htab->layout_sections_again) ();
b34976b6 3071 stub_changed = FALSE;
30667bf3
AM
3072 }
3073
6cdc0ccc 3074 free (htab->all_local_syms);
b34976b6 3075 return TRUE;
30667bf3
AM
3076
3077 error_ret_free_local:
b4655ea9 3078 free (htab->all_local_syms);
b34976b6 3079 return FALSE;
30667bf3
AM
3080}
3081
30667bf3
AM
3082/* For a final link, this function is called after we have sized the
3083 stubs to provide a value for __gp. */
3084
b34976b6 3085bfd_boolean
c39a58e6 3086elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3087{
b4655ea9
AM
3088 struct bfd_link_hash_entry *h;
3089 asection *sec = NULL;
3090 bfd_vma gp_val = 0;
83c81bfe 3091 struct elf32_hppa_link_hash_table *htab;
30667bf3 3092
83c81bfe 3093 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3094 if (htab == NULL)
3095 return FALSE;
3096
a63e02c7 3097 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3098
df8634e3 3099 if (h != NULL
b4655ea9
AM
3100 && (h->type == bfd_link_hash_defined
3101 || h->type == bfd_link_hash_defweak))
30667bf3 3102 {
b4655ea9
AM
3103 gp_val = h->u.def.value;
3104 sec = h->u.def.section;
30667bf3
AM
3105 }
3106 else
3107 {
0eddce27
AM
3108 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3109 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3110
74d1c347
AM
3111 /* Choose to point our LTP at, in this order, one of .plt, .got,
3112 or .data, if these sections exist. In the case of choosing
3113 .plt try to make the LTP ideal for addressing anywhere in the
3114 .plt or .got with a 14 bit signed offset. Typically, the end
3115 of the .plt is the start of the .got, so choose .plt + 0x2000
3116 if either the .plt or .got is larger than 0x2000. If both
3117 the .plt and .got are smaller than 0x2000, choose the end of
3118 the .plt section. */
225247f0
JT
3119 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3120 ? NULL : splt;
74d1c347 3121 if (sec != NULL)
30667bf3 3122 {
eea6121a
AM
3123 gp_val = sec->size;
3124 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3125 {
3126 gp_val = 0x2000;
3127 }
3128 }
3129 else
3130 {
b4655ea9 3131 sec = sgot;
74d1c347
AM
3132 if (sec != NULL)
3133 {
225247f0
JT
3134 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3135 {
3136 /* We know we don't have a .plt. If .got is large,
3137 offset our LTP. */
3138 if (sec->size > 0x2000)
3139 gp_val = 0x2000;
3140 }
74d1c347
AM
3141 }
3142 else
3143 {
3144 /* No .plt or .got. Who cares what the LTP is? */
3145 sec = bfd_get_section_by_name (abfd, ".data");
3146 }
30667bf3 3147 }
df8634e3
AM
3148
3149 if (h != NULL)
3150 {
b4655ea9
AM
3151 h->type = bfd_link_hash_defined;
3152 h->u.def.value = gp_val;
df8634e3 3153 if (sec != NULL)
b4655ea9 3154 h->u.def.section = sec;
df8634e3 3155 else
b4655ea9 3156 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3157 }
30667bf3
AM
3158 }
3159
b32b5d6e 3160 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3161 gp_val += sec->output_section->vma + sec->output_offset;
3162
3163 elf_gp (abfd) = gp_val;
b34976b6 3164 return TRUE;
30667bf3
AM
3165}
3166
30667bf3
AM
3167/* Build all the stubs associated with the current output file. The
3168 stubs are kept in a hash table attached to the main linker hash
3169 table. We also set up the .plt entries for statically linked PIC
3170 functions here. This function is called via hppaelf_finish in the
3171 linker. */
3172
b34976b6 3173bfd_boolean
c39a58e6 3174elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3175{
3176 asection *stub_sec;
3177 struct bfd_hash_table *table;
83c81bfe 3178 struct elf32_hppa_link_hash_table *htab;
30667bf3 3179
83c81bfe 3180 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3181 if (htab == NULL)
3182 return FALSE;
30667bf3 3183
83c81bfe 3184 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3185 stub_sec != NULL;
3186 stub_sec = stub_sec->next)
a464198b
AM
3187 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3188 && stub_sec->size != 0)
3189 {
3190 /* Allocate memory to hold the linker stubs. */
3191 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3192 if (stub_sec->contents == NULL)
3193 return FALSE;
3194 stub_sec->size = 0;
3195 }
30667bf3
AM
3196
3197 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3198 table = &htab->bstab;
30667bf3
AM
3199 bfd_hash_traverse (table, hppa_build_one_stub, info);
3200
b34976b6 3201 return TRUE;
30667bf3
AM
3202}
3203
9b52905e 3204/* Return the base vma address which should be subtracted from the real
68ffbac6 3205 address when resolving a dtpoff relocation.
9b52905e
NC
3206 This is PT_TLS segment p_vaddr. */
3207
3208static bfd_vma
3209dtpoff_base (struct bfd_link_info *info)
3210{
3211 /* If tls_sec is NULL, we should have signalled an error already. */
3212 if (elf_hash_table (info)->tls_sec == NULL)
3213 return 0;
3214 return elf_hash_table (info)->tls_sec->vma;
3215}
3216
3217/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3218
3219static bfd_vma
3220tpoff (struct bfd_link_info *info, bfd_vma address)
3221{
3222 struct elf_link_hash_table *htab = elf_hash_table (info);
3223
3224 /* If tls_sec is NULL, we should have signalled an error already. */
3225 if (htab->tls_sec == NULL)
3226 return 0;
68ffbac6 3227 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3228 tcbhead structure which has 2 pointer fields. */
68ffbac6 3229 return (address - htab->tls_sec->vma
9b52905e
NC
3230 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3231}
3232
c46b7515
AM
3233/* Perform a final link. */
3234
b34976b6 3235static bfd_boolean
c39a58e6 3236elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3237{
6d4b2867
JDA
3238 struct stat buf;
3239
4dc86686 3240 /* Invoke the regular ELF linker to do all the work. */
c152c796 3241 if (!bfd_elf_final_link (abfd, info))
b34976b6 3242 return FALSE;
c46b7515
AM
3243
3244 /* If we're producing a final executable, sort the contents of the
985142a4 3245 unwind section. */
0e1862bb 3246 if (bfd_link_relocatable (info))
d9f40817
DA
3247 return TRUE;
3248
6d4b2867
JDA
3249 /* Do not attempt to sort non-regular files. This is here
3250 especially for configure scripts and kernel builds which run
3251 tests with "ld [...] -o /dev/null". */
3252 if (stat (abfd->filename, &buf) != 0
3253 || !S_ISREG(buf.st_mode))
3254 return TRUE;
3255
46fe4e66 3256 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3257}
3258
3259/* Record the lowest address for the data and text segments. */
3260
3261static void
2ea37f1c 3262hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3263{
83c81bfe 3264 struct elf32_hppa_link_hash_table *htab;
c46b7515 3265
875c0872 3266 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3267 if (htab == NULL)
3268 return;
c46b7515
AM
3269
3270 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3271 {
2ea37f1c
NC
3272 bfd_vma value;
3273 Elf_Internal_Phdr *p;
3274
3275 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3276 BFD_ASSERT (p != NULL);
3277 value = p->p_vaddr;
c46b7515
AM
3278
3279 if ((section->flags & SEC_READONLY) != 0)
3280 {
83c81bfe
AM
3281 if (value < htab->text_segment_base)
3282 htab->text_segment_base = value;
c46b7515
AM
3283 }
3284 else
3285 {
83c81bfe
AM
3286 if (value < htab->data_segment_base)
3287 htab->data_segment_base = value;
c46b7515
AM
3288 }
3289 }
3290}
3291
30667bf3
AM
3292/* Perform a relocation as part of a final link. */
3293
3294static bfd_reloc_status_type
c39a58e6
AM
3295final_link_relocate (asection *input_section,
3296 bfd_byte *contents,
875c0872 3297 const Elf_Internal_Rela *rela,
c39a58e6
AM
3298 bfd_vma value,
3299 struct elf32_hppa_link_hash_table *htab,
3300 asection *sym_sec,
875c0872 3301 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3302 struct bfd_link_info *info)
30667bf3
AM
3303{
3304 int insn;
875c0872 3305 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3306 unsigned int orig_r_type = r_type;
30667bf3
AM
3307 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3308 int r_format = howto->bitsize;
3309 enum hppa_reloc_field_selector_type_alt r_field;
3310 bfd *input_bfd = input_section->owner;
875c0872 3311 bfd_vma offset = rela->r_offset;
30667bf3
AM
3312 bfd_vma max_branch_offset = 0;
3313 bfd_byte *hit_data = contents + offset;
875c0872 3314 bfd_signed_vma addend = rela->r_addend;
30667bf3 3315 bfd_vma location;
875c0872 3316 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3317 int val;
30667bf3
AM
3318
3319 if (r_type == R_PARISC_NONE)
3320 return bfd_reloc_ok;
3321
3322 insn = bfd_get_32 (input_bfd, hit_data);
3323
3324 /* Find out where we are and where we're going. */
3325 location = (offset +
3326 input_section->output_offset +
3327 input_section->output_section->vma);
3328
a252afa4
DA
3329 /* If we are not building a shared library, convert DLTIND relocs to
3330 DPREL relocs. */
0e1862bb 3331 if (!bfd_link_pic (info))
a252afa4
DA
3332 {
3333 switch (r_type)
4fc8051d
AM
3334 {
3335 case R_PARISC_DLTIND21L:
143bb599
DA
3336 case R_PARISC_TLS_GD21L:
3337 case R_PARISC_TLS_LDM21L:
3338 case R_PARISC_TLS_IE21L:
4fc8051d 3339 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3340 break;
3341
4fc8051d 3342 case R_PARISC_DLTIND14R:
143bb599
DA
3343 case R_PARISC_TLS_GD14R:
3344 case R_PARISC_TLS_LDM14R:
3345 case R_PARISC_TLS_IE14R:
4fc8051d 3346 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3347 break;
3348
4fc8051d
AM
3349 case R_PARISC_DLTIND14F:
3350 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3351 break;
3352 }
3353 }
3354
30667bf3
AM
3355 switch (r_type)
3356 {
3357 case R_PARISC_PCREL12F:
3358 case R_PARISC_PCREL17F:
3359 case R_PARISC_PCREL22F:
067fa4a6
AM
3360 /* If this call should go via the plt, find the import stub in
3361 the stub hash. */
30667bf3
AM
3362 if (sym_sec == NULL
3363 || sym_sec->output_section == NULL
875c0872 3364 || (hh != NULL
a63e02c7
DA
3365 && hh->eh.plt.offset != (bfd_vma) -1
3366 && hh->eh.dynindx != -1
875c0872 3367 && !hh->plabel
0e1862bb 3368 && (bfd_link_pic (info)
a63e02c7
DA
3369 || !hh->eh.def_regular
3370 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3371 {
875c0872
DA
3372 hsh = hppa_get_stub_entry (input_section, sym_sec,
3373 hh, rela, htab);
3374 if (hsh != NULL)
30667bf3 3375 {
875c0872
DA
3376 value = (hsh->stub_offset
3377 + hsh->stub_sec->output_offset
3378 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3379 addend = 0;
3380 }
875c0872 3381 else if (sym_sec == NULL && hh != NULL
a63e02c7 3382 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3383 {
db20fd76
AM
3384 /* It's OK if undefined weak. Calls to undefined weak
3385 symbols behave as if the "called" function
3386 immediately returns. We can thus call to a weak
3387 function without first checking whether the function
3388 is defined. */
30667bf3 3389 value = location;
db20fd76 3390 addend = 8;
30667bf3
AM
3391 }
3392 else
f09ebc7d 3393 return bfd_reloc_undefined;
30667bf3
AM
3394 }
3395 /* Fall thru. */
3396
3397 case R_PARISC_PCREL21L:
3398 case R_PARISC_PCREL17C:
3399 case R_PARISC_PCREL17R:
3400 case R_PARISC_PCREL14R:
3401 case R_PARISC_PCREL14F:
36751eee 3402 case R_PARISC_PCREL32:
30667bf3
AM
3403 /* Make it a pc relative offset. */
3404 value -= location;
3405 addend -= 8;
3406 break;
3407
3408 case R_PARISC_DPREL21L:
3409 case R_PARISC_DPREL14R:
3410 case R_PARISC_DPREL14F:
a252afa4
DA
3411 /* Convert instructions that use the linkage table pointer (r19) to
3412 instructions that use the global data pointer (dp). This is the
3413 most efficient way of using PIC code in an incomplete executable,
3414 but the user must follow the standard runtime conventions for
3415 accessing data for this to work. */
143bb599 3416 if (orig_r_type != r_type)
a252afa4 3417 {
143bb599
DA
3418 if (r_type == R_PARISC_DPREL21L)
3419 {
3420 /* GCC sometimes uses a register other than r19 for the
3421 operation, so we must convert any addil instruction
3422 that uses this relocation. */
3423 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3424 insn = ADDIL_DP;
3425 else
3426 /* We must have a ldil instruction. It's too hard to find
3427 and convert the associated add instruction, so issue an
3428 error. */
4eca0228 3429 _bfd_error_handler
695344c0 3430 /* xgettext:c-format */
143bb599
DA
3431 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3432 input_bfd,
3433 input_section,
3434 (long) offset,
3435 howto->name,
3436 insn);
3437 }
3438 else if (r_type == R_PARISC_DPREL14F)
3439 {
3440 /* This must be a format 1 load/store. Change the base
3441 register to dp. */
3442 insn = (insn & 0xfc1ffff) | (27 << 21);
3443 }
a252afa4
DA
3444 }
3445
143bb599
DA
3446 /* For all the DP relative relocations, we need to examine the symbol's
3447 section. If it has no section or if it's a code section, then
3448 "data pointer relative" makes no sense. In that case we don't
3449 adjust the "value", and for 21 bit addil instructions, we change the
3450 source addend register from %dp to %r0. This situation commonly
3451 arises for undefined weak symbols and when a variable's "constness"
3452 is declared differently from the way the variable is defined. For
3453 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3454 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3455 {
3456 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3457 == (((int) OP_ADDIL << 26) | (27 << 21)))
3458 {
3459 insn &= ~ (0x1f << 21);
30667bf3
AM
3460 }
3461 /* Now try to make things easy for the dynamic linker. */
3462
3463 break;
3464 }
74d1c347 3465 /* Fall thru. */
30667bf3
AM
3466
3467 case R_PARISC_DLTIND21L:
3468 case R_PARISC_DLTIND14R:
3469 case R_PARISC_DLTIND14F:
143bb599
DA
3470 case R_PARISC_TLS_GD21L:
3471 case R_PARISC_TLS_LDM21L:
3472 case R_PARISC_TLS_IE21L:
9b52905e 3473 case R_PARISC_TLS_GD14R:
9b52905e 3474 case R_PARISC_TLS_LDM14R:
9b52905e 3475 case R_PARISC_TLS_IE14R:
30667bf3
AM
3476 value -= elf_gp (input_section->output_section->owner);
3477 break;
3478
c46b7515
AM
3479 case R_PARISC_SEGREL32:
3480 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3481 value -= htab->text_segment_base;
c46b7515 3482 else
83c81bfe 3483 value -= htab->data_segment_base;
c46b7515
AM
3484 break;
3485
30667bf3
AM
3486 default:
3487 break;
3488 }
3489
3490 switch (r_type)
3491 {
3492 case R_PARISC_DIR32:
47d89dba 3493 case R_PARISC_DIR14F:
30667bf3
AM
3494 case R_PARISC_DIR17F:
3495 case R_PARISC_PCREL17C:
3496 case R_PARISC_PCREL14F:
36751eee 3497 case R_PARISC_PCREL32:
30667bf3
AM
3498 case R_PARISC_DPREL14F:
3499 case R_PARISC_PLABEL32:
3500 case R_PARISC_DLTIND14F:
3501 case R_PARISC_SEGBASE:
3502 case R_PARISC_SEGREL32:
9b52905e
NC
3503 case R_PARISC_TLS_DTPMOD32:
3504 case R_PARISC_TLS_DTPOFF32:
3505 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3506 r_field = e_fsel;
3507 break;
3508
1bf42538 3509 case R_PARISC_DLTIND21L:
30667bf3 3510 case R_PARISC_PCREL21L:
30667bf3 3511 case R_PARISC_PLABEL21L:
1bf42538
JL
3512 r_field = e_lsel;
3513 break;
3514
3515 case R_PARISC_DIR21L:
3516 case R_PARISC_DPREL21L:
9b52905e
NC
3517 case R_PARISC_TLS_GD21L:
3518 case R_PARISC_TLS_LDM21L:
3519 case R_PARISC_TLS_LDO21L:
3520 case R_PARISC_TLS_IE21L:
3521 case R_PARISC_TLS_LE21L:
30667bf3
AM
3522 r_field = e_lrsel;
3523 break;
3524
30667bf3 3525 case R_PARISC_PCREL17R:
30667bf3 3526 case R_PARISC_PCREL14R:
30667bf3
AM
3527 case R_PARISC_PLABEL14R:
3528 case R_PARISC_DLTIND14R:
1bf42538
JL
3529 r_field = e_rsel;
3530 break;
3531
3532 case R_PARISC_DIR17R:
3533 case R_PARISC_DIR14R:
3534 case R_PARISC_DPREL14R:
9b52905e
NC
3535 case R_PARISC_TLS_GD14R:
3536 case R_PARISC_TLS_LDM14R:
3537 case R_PARISC_TLS_LDO14R:
3538 case R_PARISC_TLS_IE14R:
3539 case R_PARISC_TLS_LE14R:
30667bf3
AM
3540 r_field = e_rrsel;
3541 break;
3542
3543 case R_PARISC_PCREL12F:
3544 case R_PARISC_PCREL17F:
3545 case R_PARISC_PCREL22F:
3546 r_field = e_fsel;
3547
3548 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3549 {
3550 max_branch_offset = (1 << (17-1)) << 2;
3551 }
3552 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3553 {
3554 max_branch_offset = (1 << (12-1)) << 2;
3555 }
3556 else
3557 {
3558 max_branch_offset = (1 << (22-1)) << 2;
3559 }
3560
3561 /* sym_sec is NULL on undefined weak syms or when shared on
3562 undefined syms. We've already checked for a stub for the
3563 shared undefined case. */
3564 if (sym_sec == NULL)
3565 break;
3566
3567 /* If the branch is out of reach, then redirect the
3568 call to the local stub for this function. */
3569 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3570 {
875c0872
DA
3571 hsh = hppa_get_stub_entry (input_section, sym_sec,
3572 hh, rela, htab);
3573 if (hsh == NULL)
f09ebc7d 3574 return bfd_reloc_undefined;
30667bf3
AM
3575
3576 /* Munge up the value and addend so that we call the stub
3577 rather than the procedure directly. */
875c0872
DA
3578 value = (hsh->stub_offset
3579 + hsh->stub_sec->output_offset
3580 + hsh->stub_sec->output_section->vma
30667bf3
AM
3581 - location);
3582 addend = -8;
3583 }
3584 break;
3585
3586 /* Something we don't know how to handle. */
3587 default:
3588 return bfd_reloc_notsupported;
3589 }
3590
3591 /* Make sure we can reach the stub. */
3592 if (max_branch_offset != 0
3593 && value + addend + max_branch_offset >= 2*max_branch_offset)
3594 {
4eca0228 3595 _bfd_error_handler
695344c0 3596 /* xgettext:c-format */
d003868e
AM
3597 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3598 input_bfd,
3599 input_section,
d1fa68d3 3600 (long) offset,
a63e02c7 3601 hsh->bh_root.string);
ce757d15 3602 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3603 return bfd_reloc_notsupported;
3604 }
3605
3606 val = hppa_field_adjust (value, addend, r_field);
3607
3608 switch (r_type)
3609 {
3610 case R_PARISC_PCREL12F:
3611 case R_PARISC_PCREL17C:
3612 case R_PARISC_PCREL17F:
3613 case R_PARISC_PCREL17R:
3614 case R_PARISC_PCREL22F:
3615 case R_PARISC_DIR17F:
3616 case R_PARISC_DIR17R:
3617 /* This is a branch. Divide the offset by four.
3618 Note that we need to decide whether it's a branch or
3619 otherwise by inspecting the reloc. Inspecting insn won't
3620 work as insn might be from a .word directive. */
3621 val >>= 2;
3622 break;
3623
3624 default:
3625 break;
3626 }
3627
3628 insn = hppa_rebuild_insn (insn, val, r_format);
3629
3630 /* Update the instruction word. */
74d1c347 3631 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3632 return bfd_reloc_ok;
3633}
3634
30667bf3
AM
3635/* Relocate an HPPA ELF section. */
3636
b34976b6 3637static bfd_boolean
c39a58e6
AM
3638elf32_hppa_relocate_section (bfd *output_bfd,
3639 struct bfd_link_info *info,
3640 bfd *input_bfd,
3641 asection *input_section,
3642 bfd_byte *contents,
3643 Elf_Internal_Rela *relocs,
3644 Elf_Internal_Sym *local_syms,
3645 asection **local_sections)
30667bf3 3646{
30667bf3 3647 bfd_vma *local_got_offsets;
83c81bfe 3648 struct elf32_hppa_link_hash_table *htab;
30667bf3 3649 Elf_Internal_Shdr *symtab_hdr;
875c0872 3650 Elf_Internal_Rela *rela;
30667bf3 3651 Elf_Internal_Rela *relend;
30667bf3
AM
3652
3653 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3654
83c81bfe 3655 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3656 if (htab == NULL)
3657 return FALSE;
3658
74d1c347 3659 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3660
875c0872 3661 rela = relocs;
30667bf3 3662 relend = relocs + input_section->reloc_count;
875c0872 3663 for (; rela < relend; rela++)
30667bf3
AM
3664 {
3665 unsigned int r_type;
3666 reloc_howto_type *howto;
3667 unsigned int r_symndx;
875c0872 3668 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3669 Elf_Internal_Sym *sym;
3670 asection *sym_sec;
3671 bfd_vma relocation;
875c0872 3672 bfd_reloc_status_type rstatus;
30667bf3 3673 const char *sym_name;
b34976b6
AM
3674 bfd_boolean plabel;
3675 bfd_boolean warned_undef;
30667bf3 3676
875c0872 3677 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3678 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3679 {
3680 bfd_set_error (bfd_error_bad_value);
b34976b6 3681 return FALSE;
30667bf3
AM
3682 }
3683 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3684 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3685 continue;
3686
875c0872
DA
3687 r_symndx = ELF32_R_SYM (rela->r_info);
3688 hh = NULL;
30667bf3
AM
3689 sym = NULL;
3690 sym_sec = NULL;
b34976b6 3691 warned_undef = FALSE;
30667bf3
AM
3692 if (r_symndx < symtab_hdr->sh_info)
3693 {
3694 /* This is a local symbol, h defaults to NULL. */
3695 sym = local_syms + r_symndx;
3696 sym_sec = local_sections[r_symndx];
875c0872 3697 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3698 }
3699 else
3700 {
875c0872 3701 struct elf_link_hash_entry *eh;
62d887d4 3702 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3703 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3704
875c0872 3705 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3706 r_symndx, symtab_hdr, sym_hashes,
875c0872 3707 eh, sym_sec, relocation,
62d887d4
L
3708 unresolved_reloc, warned_undef,
3709 ignored);
560e09e9 3710
0e1862bb 3711 if (!bfd_link_relocatable (info)
ab96bf03 3712 && relocation == 0
875c0872
DA
3713 && eh->root.type != bfd_link_hash_defined
3714 && eh->root.type != bfd_link_hash_defweak
3715 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3716 {
59c2e50f 3717 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3718 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3719 && eh->type == STT_PARISC_MILLI)
560e09e9 3720 {
1a72702b
AM
3721 (*info->callbacks->undefined_symbol)
3722 (info, eh_name (eh), input_bfd,
3723 input_section, rela->r_offset, FALSE);
560e09e9
NC
3724 warned_undef = TRUE;
3725 }
30667bf3 3726 }
875c0872 3727 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3728 }
3729
dbaa2011 3730 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3731 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3732 rela, 1, relend,
3733 elf_hppa_howto_table + r_type, 0,
e4067dbb 3734 contents);
ab96bf03 3735
0e1862bb 3736 if (bfd_link_relocatable (info))
ab96bf03
AM
3737 continue;
3738
30667bf3 3739 /* Do any required modifications to the relocation value, and
25f72752
AM
3740 determine what types of dynamic info we need to output, if
3741 any. */
74d1c347 3742 plabel = 0;
30667bf3
AM
3743 switch (r_type)
3744 {
3745 case R_PARISC_DLTIND14F:
3746 case R_PARISC_DLTIND14R:
3747 case R_PARISC_DLTIND21L:
ce757d15
AM
3748 {
3749 bfd_vma off;
b34976b6 3750 bfd_boolean do_got = 0;
ce757d15
AM
3751
3752 /* Relocation is to the entry for this symbol in the
3753 global offset table. */
875c0872 3754 if (hh != NULL)
ce757d15 3755 {
b34976b6 3756 bfd_boolean dyn;
ce757d15 3757
a63e02c7
DA
3758 off = hh->eh.got.offset;
3759 dyn = htab->etab.dynamic_sections_created;
0e1862bb
L
3760 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3761 bfd_link_pic (info),
a63e02c7 3762 &hh->eh))
ce757d15
AM
3763 {
3764 /* If we aren't going to call finish_dynamic_symbol,
3765 then we need to handle initialisation of the .got
3766 entry and create needed relocs here. Since the
3767 offset must always be a multiple of 4, we use the
3768 least significant bit to record whether we have
3769 initialised it already. */
3770 if ((off & 1) != 0)
3771 off &= ~1;
3772 else
3773 {
a63e02c7 3774 hh->eh.got.offset |= 1;
ce757d15
AM
3775 do_got = 1;
3776 }
3777 }
3778 }
3779 else
3780 {
3781 /* Local symbol case. */
3782 if (local_got_offsets == NULL)
3783 abort ();
3784
3785 off = local_got_offsets[r_symndx];
3786
3787 /* The offset must always be a multiple of 4. We use
3788 the least significant bit to record whether we have
3789 already generated the necessary reloc. */
3790 if ((off & 1) != 0)
3791 off &= ~1;
3792 else
3793 {
3794 local_got_offsets[r_symndx] |= 1;
3795 do_got = 1;
3796 }
3797 }
68fb2e56 3798
ce757d15
AM
3799 if (do_got)
3800 {
0e1862bb 3801 if (bfd_link_pic (info))
ce757d15
AM
3802 {
3803 /* Output a dynamic relocation for this GOT entry.
3804 In this case it is relative to the base of the
3805 object because the symbol index is zero. */
3806 Elf_Internal_Rela outrel;
947216bf 3807 bfd_byte *loc;
ce558b89 3808 asection *sec = htab->etab.srelgot;
ce757d15
AM
3809
3810 outrel.r_offset = (off
ce558b89
AM
3811 + htab->etab.sgot->output_offset
3812 + htab->etab.sgot->output_section->vma);
ce757d15
AM
3813 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3814 outrel.r_addend = relocation;
875c0872
DA
3815 loc = sec->contents;
3816 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3817 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3818 }
3819 else
30667bf3 3820 bfd_put_32 (output_bfd, relocation,
ce558b89 3821 htab->etab.sgot->contents + off);
ce757d15 3822 }
30667bf3 3823
ce757d15
AM
3824 if (off >= (bfd_vma) -2)
3825 abort ();
30667bf3 3826
ce757d15
AM
3827 /* Add the base of the GOT to the relocation value. */
3828 relocation = (off
ce558b89
AM
3829 + htab->etab.sgot->output_offset
3830 + htab->etab.sgot->output_section->vma);
ce757d15 3831 }
30667bf3 3832 break;
252b5132 3833
c46b7515
AM
3834 case R_PARISC_SEGREL32:
3835 /* If this is the first SEGREL relocation, then initialize
3836 the segment base values. */
83c81bfe
AM
3837 if (htab->text_segment_base == (bfd_vma) -1)
3838 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3839 break;
3840
30667bf3
AM
3841 case R_PARISC_PLABEL14R:
3842 case R_PARISC_PLABEL21L:
3843 case R_PARISC_PLABEL32:
a63e02c7 3844 if (htab->etab.dynamic_sections_created)
252b5132 3845 {
ce757d15 3846 bfd_vma off;
b34976b6 3847 bfd_boolean do_plt = 0;
74d1c347
AM
3848 /* If we have a global symbol with a PLT slot, then
3849 redirect this relocation to it. */
875c0872 3850 if (hh != NULL)
74d1c347 3851 {
a63e02c7 3852 off = hh->eh.plt.offset;
0e1862bb
L
3853 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3854 bfd_link_pic (info),
a63e02c7 3855 &hh->eh))
8dea1268
AM
3856 {
3857 /* In a non-shared link, adjust_dynamic_symbols
3858 isn't called for symbols forced local. We
dc810e39 3859 need to write out the plt entry here. */
8dea1268
AM
3860 if ((off & 1) != 0)
3861 off &= ~1;
3862 else
3863 {
a63e02c7 3864 hh->eh.plt.offset |= 1;
ce757d15 3865 do_plt = 1;
8dea1268
AM
3866 }
3867 }
74d1c347
AM
3868 }
3869 else
3870 {
68fb2e56
AM
3871 bfd_vma *local_plt_offsets;
3872
3873 if (local_got_offsets == NULL)
3874 abort ();
74d1c347 3875
68fb2e56
AM
3876 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3877 off = local_plt_offsets[r_symndx];
74d1c347
AM
3878
3879 /* As for the local .got entry case, we use the last
3880 bit to record whether we've already initialised
3881 this local .plt entry. */
3882 if ((off & 1) != 0)
3883 off &= ~1;
ce757d15
AM
3884 else
3885 {
3886 local_plt_offsets[r_symndx] |= 1;
3887 do_plt = 1;
3888 }
3889 }
3890
3891 if (do_plt)
3892 {
0e1862bb 3893 if (bfd_link_pic (info))
ce757d15
AM
3894 {
3895 /* Output a dynamic IPLT relocation for this
3896 PLT entry. */
3897 Elf_Internal_Rela outrel;
947216bf 3898 bfd_byte *loc;
ce558b89 3899 asection *s = htab->etab.srelplt;
ce757d15
AM
3900
3901 outrel.r_offset = (off
ce558b89
AM
3902 + htab->etab.splt->output_offset
3903 + htab->etab.splt->output_section->vma);
ce757d15
AM
3904 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3905 outrel.r_addend = relocation;
947216bf
AM
3906 loc = s->contents;
3907 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3908 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3909 }
74d1c347
AM
3910 else
3911 {
3912 bfd_put_32 (output_bfd,
3913 relocation,
ce558b89 3914 htab->etab.splt->contents + off);
74d1c347 3915 bfd_put_32 (output_bfd,
ce558b89
AM
3916 elf_gp (htab->etab.splt->output_section->owner),
3917 htab->etab.splt->contents + off + 4);
74d1c347
AM
3918 }
3919 }
3920
68fb2e56 3921 if (off >= (bfd_vma) -2)
49e9d0d3 3922 abort ();
74d1c347
AM
3923
3924 /* PLABELs contain function pointers. Relocation is to
3925 the entry for the function in the .plt. The magic +2
3926 offset signals to $$dyncall that the function pointer
3927 is in the .plt and thus has a gp pointer too.
3928 Exception: Undefined PLABELs should have a value of
3929 zero. */
875c0872 3930 if (hh == NULL
a63e02c7
DA
3931 || (hh->eh.root.type != bfd_link_hash_undefweak
3932 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3933 {
3934 relocation = (off
ce558b89
AM
3935 + htab->etab.splt->output_offset
3936 + htab->etab.splt->output_section->vma
74d1c347
AM
3937 + 2);
3938 }
3939 plabel = 1;
30667bf3 3940 }
1a0670f3 3941 /* Fall through. */
30667bf3
AM
3942
3943 case R_PARISC_DIR17F:
3944 case R_PARISC_DIR17R:
47d89dba 3945 case R_PARISC_DIR14F:
30667bf3
AM
3946 case R_PARISC_DIR14R:
3947 case R_PARISC_DIR21L:
3948 case R_PARISC_DPREL14F:
3949 case R_PARISC_DPREL14R:
3950 case R_PARISC_DPREL21L:
3951 case R_PARISC_DIR32:
b1e24c02 3952 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3953 break;
3954
30667bf3 3955 /* The reloc types handled here and this conditional
56882138 3956 expression must match the code in ..check_relocs and
ec338859 3957 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3958 as in ..check_relocs, with some extra conditions (dynindx
3959 test in this case) to cater for relocs removed by
ec338859 3960 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3961 here does indeed match the one in ..check_relocs, the
3962 difference being that here we test DEF_DYNAMIC as well as
3963 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3964 which is why we can't use just that test here.
3965 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3966 there all files have not been loaded. */
0e1862bb 3967 if ((bfd_link_pic (info)
875c0872 3968 && (hh == NULL
a63e02c7
DA
3969 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3970 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3971 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3972 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
0e1862bb 3973 || (!bfd_link_pic (info)
875c0872 3974 && hh != NULL
a63e02c7
DA
3975 && hh->eh.dynindx != -1
3976 && !hh->eh.non_got_ref
4fc8051d 3977 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3978 && hh->eh.def_dynamic
3979 && !hh->eh.def_regular)
3980 || hh->eh.root.type == bfd_link_hash_undefweak
3981 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3982 {
3983 Elf_Internal_Rela outrel;
b34976b6 3984 bfd_boolean skip;
98ceb8ce 3985 asection *sreloc;
947216bf 3986 bfd_byte *loc;
252b5132 3987
30667bf3
AM
3988 /* When generating a shared object, these relocations
3989 are copied into the output file to be resolved at run
3990 time. */
252b5132 3991
875c0872 3992 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3993 outrel.r_offset =
3994 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3995 rela->r_offset);
0bb2d96a
JJ
3996 skip = (outrel.r_offset == (bfd_vma) -1
3997 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3998 outrel.r_offset += (input_section->output_offset
3999 + input_section->output_section->vma);
68ffbac6 4000
30667bf3 4001 if (skip)
252b5132 4002 {
30667bf3 4003 memset (&outrel, 0, sizeof (outrel));
252b5132 4004 }
875c0872 4005 else if (hh != NULL
a63e02c7 4006 && hh->eh.dynindx != -1
74d1c347 4007 && (plabel
446f2863 4008 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 4009 || !bfd_link_pic (info)
a496fbc8 4010 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 4011 || !hh->eh.def_regular))
252b5132 4012 {
a63e02c7 4013 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4014 }
4015 else /* It's a local symbol, or one marked to become local. */
4016 {
4017 int indx = 0;
edd21aca 4018
30667bf3
AM
4019 /* Add the absolute offset of the symbol. */
4020 outrel.r_addend += relocation;
edd21aca 4021
74d1c347
AM
4022 /* Global plabels need to be processed by the
4023 dynamic linker so that functions have at most one
4024 fptr. For this reason, we need to differentiate
4025 between global and local plabels, which we do by
4026 providing the function symbol for a global plabel
4027 reloc, and no symbol for local plabels. */
4028 if (! plabel
4029 && sym_sec != NULL
30667bf3
AM
4030 && sym_sec->output_section != NULL
4031 && ! bfd_is_abs_section (sym_sec))
252b5132 4032 {
74541ad4
AM
4033 asection *osec;
4034
4035 osec = sym_sec->output_section;
4036 indx = elf_section_data (osec)->dynindx;
4037 if (indx == 0)
4038 {
4039 osec = htab->etab.text_index_section;
4040 indx = elf_section_data (osec)->dynindx;
4041 }
4042 BFD_ASSERT (indx != 0);
4b71bec0 4043
30667bf3
AM
4044 /* We are turning this relocation into one
4045 against a section symbol, so subtract out the
4046 output section's address but not the offset
4047 of the input section in the output section. */
74541ad4 4048 outrel.r_addend -= osec->vma;
252b5132 4049 }
252b5132 4050
30667bf3
AM
4051 outrel.r_info = ELF32_R_INFO (indx, r_type);
4052 }
98ceb8ce
AM
4053 sreloc = elf_section_data (input_section)->sreloc;
4054 if (sreloc == NULL)
4055 abort ();
4056
947216bf
AM
4057 loc = sreloc->contents;
4058 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4059 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4060 }
4061 break;
68ffbac6 4062
9b52905e
NC
4063 case R_PARISC_TLS_LDM21L:
4064 case R_PARISC_TLS_LDM14R:
4065 {
4066 bfd_vma off;
68ffbac6 4067
9b52905e
NC
4068 off = htab->tls_ldm_got.offset;
4069 if (off & 1)
4070 off &= ~1;
4071 else
4072 {
4073 Elf_Internal_Rela outrel;
4074 bfd_byte *loc;
4075
68ffbac6 4076 outrel.r_offset = (off
ce558b89
AM
4077 + htab->etab.sgot->output_section->vma
4078 + htab->etab.sgot->output_offset);
9b52905e
NC
4079 outrel.r_addend = 0;
4080 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
ce558b89
AM
4081 loc = htab->etab.srelgot->contents;
4082 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
9b52905e
NC
4083
4084 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4085 htab->tls_ldm_got.offset |= 1;
4086 }
4087
4088 /* Add the base of the GOT to the relocation value. */
4089 relocation = (off
ce558b89
AM
4090 + htab->etab.sgot->output_offset
4091 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4092
4093 break;
4094 }
4095
4096 case R_PARISC_TLS_LDO21L:
4097 case R_PARISC_TLS_LDO14R:
4098 relocation -= dtpoff_base (info);
4099 break;
4100
4101 case R_PARISC_TLS_GD21L:
4102 case R_PARISC_TLS_GD14R:
4103 case R_PARISC_TLS_IE21L:
4104 case R_PARISC_TLS_IE14R:
4105 {
4106 bfd_vma off;
4107 int indx;
4108 char tls_type;
4109
4110 indx = 0;
4111 if (hh != NULL)
4112 {
4113 bfd_boolean dyn;
4114 dyn = htab->etab.dynamic_sections_created;
4115
0e1862bb
L
4116 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4117 bfd_link_pic (info),
4118 &hh->eh)
4119 && (!bfd_link_pic (info)
9b52905e
NC
4120 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4121 {
4122 indx = hh->eh.dynindx;
4123 }
4124 off = hh->eh.got.offset;
4125 tls_type = hh->tls_type;
4126 }
4127 else
4128 {
4129 off = local_got_offsets[r_symndx];
4130 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4131 }
4132
4133 if (tls_type == GOT_UNKNOWN)
4134 abort ();
4135
4136 if ((off & 1) != 0)
4137 off &= ~1;
4138 else
4139 {
4140 bfd_boolean need_relocs = FALSE;
4141 Elf_Internal_Rela outrel;
4142 bfd_byte *loc = NULL;
4143 int cur_off = off;
4144
4145 /* The GOT entries have not been initialized yet. Do it
4146 now, and emit any relocations. If both an IE GOT and a
4147 GD GOT are necessary, we emit the GD first. */
4148
0e1862bb 4149 if ((bfd_link_pic (info) || indx != 0)
9b52905e
NC
4150 && (hh == NULL
4151 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4152 || hh->eh.root.type != bfd_link_hash_undefweak))
4153 {
4154 need_relocs = TRUE;
ce558b89 4155 loc = htab->etab.srelgot->contents;
9b52905e 4156 /* FIXME (CAO): Should this be reloc_count++ ? */
ce558b89 4157 loc += htab->etab.srelgot->reloc_count * sizeof (Elf32_External_Rela);
9b52905e
NC
4158 }
4159
4160 if (tls_type & GOT_TLS_GD)
4161 {
4162 if (need_relocs)
4163 {
4164 outrel.r_offset = (cur_off
ce558b89
AM
4165 + htab->etab.sgot->output_section->vma
4166 + htab->etab.sgot->output_offset);
9b52905e
NC
4167 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4168 outrel.r_addend = 0;
ce558b89 4169 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + cur_off);
9b52905e 4170 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4171 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4172 loc += sizeof (Elf32_External_Rela);
4173
4174 if (indx == 0)
4175 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4176 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4177 else
4178 {
4179 bfd_put_32 (output_bfd, 0,
ce558b89 4180 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4181 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4182 outrel.r_offset += 4;
4183 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
ce558b89 4184 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4185 loc += sizeof (Elf32_External_Rela);
4186 }
4187 }
4188 else
4189 {
4190 /* If we are not emitting relocations for a
4191 general dynamic reference, then we must be in a
4192 static link or an executable link with the
4193 symbol binding locally. Mark it as belonging
4194 to module 1, the executable. */
4195 bfd_put_32 (output_bfd, 1,
ce558b89 4196 htab->etab.sgot->contents + cur_off);
9b52905e 4197 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4198 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4199 }
4200
4201
4202 cur_off += 8;
4203 }
4204
4205 if (tls_type & GOT_TLS_IE)
4206 {
4207 if (need_relocs)
4208 {
4209 outrel.r_offset = (cur_off
ce558b89
AM
4210 + htab->etab.sgot->output_section->vma
4211 + htab->etab.sgot->output_offset);
9b52905e
NC
4212 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4213
4214 if (indx == 0)
4215 outrel.r_addend = relocation - dtpoff_base (info);
4216 else
4217 outrel.r_addend = 0;
4218
4219 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4220 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4221 loc += sizeof (Elf32_External_Rela);
4222 }
4223 else
4224 bfd_put_32 (output_bfd, tpoff (info, relocation),
ce558b89 4225 htab->etab.sgot->contents + cur_off);
9b52905e
NC
4226
4227 cur_off += 4;
4228 }
4229
4230 if (hh != NULL)
4231 hh->eh.got.offset |= 1;
4232 else
4233 local_got_offsets[r_symndx] |= 1;
4234 }
4235
4236 if ((tls_type & GOT_TLS_GD)
4237 && r_type != R_PARISC_TLS_GD21L
4238 && r_type != R_PARISC_TLS_GD14R)
4239 off += 2 * GOT_ENTRY_SIZE;
4240
4241 /* Add the base of the GOT to the relocation value. */
4242 relocation = (off
ce558b89
AM
4243 + htab->etab.sgot->output_offset
4244 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4245
4246 break;
4247 }
4248
4249 case R_PARISC_TLS_LE21L:
4250 case R_PARISC_TLS_LE14R:
4251 {
4252 relocation = tpoff (info, relocation);
4253 break;
4254 }
4255 break;
edd21aca 4256
30667bf3
AM
4257 default:
4258 break;
4259 }
252b5132 4260
875c0872
DA
4261 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4262 htab, sym_sec, hh, info);
252b5132 4263
875c0872 4264 if (rstatus == bfd_reloc_ok)
30667bf3 4265 continue;
252b5132 4266
875c0872 4267 if (hh != NULL)
9b52905e 4268 sym_name = hh_name (hh);
30667bf3
AM
4269 else
4270 {
4271 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4272 symtab_hdr->sh_link,
4273 sym->st_name);
4274 if (sym_name == NULL)
b34976b6 4275 return FALSE;
30667bf3
AM
4276 if (*sym_name == '\0')
4277 sym_name = bfd_section_name (input_bfd, sym_sec);
4278 }
edd21aca 4279
30667bf3 4280 howto = elf_hppa_howto_table + r_type;
252b5132 4281
875c0872 4282 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4283 {
875c0872 4284 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4285 {
4eca0228 4286 _bfd_error_handler
695344c0 4287 /* xgettext:c-format */
d003868e
AM
4288 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4289 input_bfd,
4290 input_section,
875c0872 4291 (long) rela->r_offset,
f09ebc7d
AM
4292 howto->name,
4293 sym_name);
4294 bfd_set_error (bfd_error_bad_value);
b34976b6 4295 return FALSE;
f09ebc7d 4296 }
30667bf3
AM
4297 }
4298 else
1a72702b
AM
4299 (*info->callbacks->reloc_overflow)
4300 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4301 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4302 }
edd21aca 4303
b34976b6 4304 return TRUE;
30667bf3 4305}
252b5132 4306
30667bf3
AM
4307/* Finish up dynamic symbol handling. We set the contents of various
4308 dynamic sections here. */
252b5132 4309
b34976b6 4310static bfd_boolean
c39a58e6
AM
4311elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4312 struct bfd_link_info *info,
875c0872 4313 struct elf_link_hash_entry *eh,
c39a58e6 4314 Elf_Internal_Sym *sym)
30667bf3 4315{
83c81bfe 4316 struct elf32_hppa_link_hash_table *htab;
875c0872 4317 Elf_Internal_Rela rela;
a252afa4 4318 bfd_byte *loc;
edd21aca 4319
83c81bfe 4320 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4321 if (htab == NULL)
4322 return FALSE;
30667bf3 4323
875c0872 4324 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4325 {
4326 bfd_vma value;
30667bf3 4327
875c0872 4328 if (eh->plt.offset & 1)
8dea1268
AM
4329 abort ();
4330
30667bf3
AM
4331 /* This symbol has an entry in the procedure linkage table. Set
4332 it up.
4333
4334 The format of a plt entry is
74d1c347
AM
4335 <funcaddr>
4336 <__gp>
47d89dba 4337 */
30667bf3 4338 value = 0;
875c0872
DA
4339 if (eh->root.type == bfd_link_hash_defined
4340 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4341 {
875c0872
DA
4342 value = eh->root.u.def.value;
4343 if (eh->root.u.def.section->output_section != NULL)
4344 value += (eh->root.u.def.section->output_offset
4345 + eh->root.u.def.section->output_section->vma);
252b5132 4346 }
edd21aca 4347
a252afa4 4348 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4349 rela.r_offset = (eh->plt.offset
ce558b89
AM
4350 + htab->etab.splt->output_offset
4351 + htab->etab.splt->output_section->vma);
875c0872 4352 if (eh->dynindx != -1)
30667bf3 4353 {
875c0872
DA
4354 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4355 rela.r_addend = 0;
30667bf3 4356 }
ce757d15 4357 else
47d89dba 4358 {
a252afa4
DA
4359 /* This symbol has been marked to become local, and is
4360 used by a plabel so must be kept in the .plt. */
875c0872
DA
4361 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4362 rela.r_addend = value;
47d89dba
AM
4363 }
4364
ce558b89
AM
4365 loc = htab->etab.srelplt->contents;
4366 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4367 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
a252afa4 4368
875c0872 4369 if (!eh->def_regular)
30667bf3
AM
4370 {
4371 /* Mark the symbol as undefined, rather than as defined in
4372 the .plt section. Leave the value alone. */
4373 sym->st_shndx = SHN_UNDEF;
4374 }
4375 }
edd21aca 4376
9b52905e
NC
4377 if (eh->got.offset != (bfd_vma) -1
4378 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4379 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4380 {
30667bf3
AM
4381 /* This symbol has an entry in the global offset table. Set it
4382 up. */
4383
875c0872 4384 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
ce558b89
AM
4385 + htab->etab.sgot->output_offset
4386 + htab->etab.sgot->output_section->vma);
30667bf3 4387
4dc86686
AM
4388 /* If this is a -Bsymbolic link and the symbol is defined
4389 locally or was forced to be local because of a version file,
4390 we just want to emit a RELATIVE reloc. The entry in the
4391 global offset table will already have been initialized in the
4392 relocate_section function. */
0e1862bb 4393 if (bfd_link_pic (info)
a496fbc8 4394 && (SYMBOLIC_BIND (info, eh) || eh->dynindx == -1)
875c0872 4395 && eh->def_regular)
30667bf3 4396 {
875c0872
DA
4397 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4398 rela.r_addend = (eh->root.u.def.value
4399 + eh->root.u.def.section->output_offset
4400 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4401 }
4402 else
4403 {
875c0872 4404 if ((eh->got.offset & 1) != 0)
49e9d0d3 4405 abort ();
875c0872 4406
ce558b89 4407 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + (eh->got.offset & ~1));
875c0872
DA
4408 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4409 rela.r_addend = 0;
30667bf3 4410 }
edd21aca 4411
ce558b89
AM
4412 loc = htab->etab.srelgot->contents;
4413 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4414 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4415 }
edd21aca 4416
875c0872 4417 if (eh->needs_copy)
30667bf3 4418 {
875c0872 4419 asection *sec;
30667bf3
AM
4420
4421 /* This symbol needs a copy reloc. Set it up. */
4422
875c0872
DA
4423 if (! (eh->dynindx != -1
4424 && (eh->root.type == bfd_link_hash_defined
4425 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4426 abort ();
30667bf3 4427
875c0872
DA
4428 rela.r_offset = (eh->root.u.def.value
4429 + eh->root.u.def.section->output_offset
4430 + eh->root.u.def.section->output_section->vma);
4431 rela.r_addend = 0;
4432 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
5474d94f
AM
4433 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
4434 sec = htab->etab.sreldynrelro;
4435 else
4436 sec = htab->etab.srelbss;
875c0872
DA
4437 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4438 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4439 }
4440
4441 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4442 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4443 {
4444 sym->st_shndx = SHN_ABS;
4445 }
4446
b34976b6 4447 return TRUE;
30667bf3
AM
4448}
4449
98ceb8ce
AM
4450/* Used to decide how to sort relocs in an optimal manner for the
4451 dynamic linker, before writing them out. */
4452
4453static enum elf_reloc_type_class
7e612e98
AM
4454elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4455 const asection *rel_sec ATTRIBUTE_UNUSED,
4456 const Elf_Internal_Rela *rela)
98ceb8ce 4457{
9b52905e 4458 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4459 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4460 check below. */
4461 switch ((int) ELF32_R_TYPE (rela->r_info))
4462 {
4463 case R_PARISC_TLS_DTPMOD32:
4464 case R_PARISC_TLS_DTPOFF32:
4465 case R_PARISC_TLS_TPREL32:
4466 return reloc_class_normal;
4467 }
4468
cf35638d 4469 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4470 return reloc_class_relative;
4471
4472 switch ((int) ELF32_R_TYPE (rela->r_info))
4473 {
4474 case R_PARISC_IPLT:
4475 return reloc_class_plt;
4476 case R_PARISC_COPY:
4477 return reloc_class_copy;
4478 default:
4479 return reloc_class_normal;
4480 }
4481}
4482
30667bf3
AM
4483/* Finish up the dynamic sections. */
4484
b34976b6 4485static bfd_boolean
c39a58e6
AM
4486elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4487 struct bfd_link_info *info)
30667bf3
AM
4488{
4489 bfd *dynobj;
83c81bfe 4490 struct elf32_hppa_link_hash_table *htab;
30667bf3 4491 asection *sdyn;
894891db 4492 asection * sgot;
30667bf3 4493
83c81bfe 4494 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4495 if (htab == NULL)
4496 return FALSE;
4497
a63e02c7 4498 dynobj = htab->etab.dynobj;
30667bf3 4499
ce558b89 4500 sgot = htab->etab.sgot;
894891db
NC
4501 /* A broken linker script might have discarded the dynamic sections.
4502 Catch this here so that we do not seg-fault later on. */
4503 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4504 return FALSE;
4505
3d4d4302 4506 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4507
a63e02c7 4508 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4509 {
4510 Elf32_External_Dyn *dyncon, *dynconend;
4511
49e9d0d3
AM
4512 if (sdyn == NULL)
4513 abort ();
30667bf3
AM
4514
4515 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4516 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4517 for (; dyncon < dynconend; dyncon++)
edd21aca 4518 {
30667bf3
AM
4519 Elf_Internal_Dyn dyn;
4520 asection *s;
4521
4522 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4523
4524 switch (dyn.d_tag)
4525 {
4526 default:
3ac8354b 4527 continue;
30667bf3
AM
4528
4529 case DT_PLTGOT:
4530 /* Use PLTGOT to set the GOT register. */
4531 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4532 break;
4533
4534 case DT_JMPREL:
ce558b89 4535 s = htab->etab.srelplt;
30667bf3 4536 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4537 break;
4538
4539 case DT_PLTRELSZ:
ce558b89 4540 s = htab->etab.srelplt;
eea6121a 4541 dyn.d_un.d_val = s->size;
30667bf3
AM
4542 break;
4543 }
3ac8354b
AM
4544
4545 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4546 }
252b5132 4547 }
edd21aca 4548
894891db 4549 if (sgot != NULL && sgot->size != 0)
30667bf3 4550 {
74d1c347
AM
4551 /* Fill in the first entry in the global offset table.
4552 We use it to point to our dynamic section, if we have one. */
30667bf3 4553 bfd_put_32 (output_bfd,
c39a58e6 4554 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4555 sgot->contents);
30667bf3 4556
74d1c347 4557 /* The second entry is reserved for use by the dynamic linker. */
894891db 4558 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4559
30667bf3 4560 /* Set .got entry size. */
894891db 4561 elf_section_data (sgot->output_section)
74d1c347 4562 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4563 }
4564
ce558b89 4565 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
47d89dba 4566 {
f3c3938c
JDA
4567 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4568 plt stubs and as such the section does not hold a table of fixed-size
4569 entries. */
ce558b89 4570 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4571
83c81bfe 4572 if (htab->need_plt_stub)
47d89dba
AM
4573 {
4574 /* Set up the .plt stub. */
ce558b89
AM
4575 memcpy (htab->etab.splt->contents
4576 + htab->etab.splt->size - sizeof (plt_stub),
47d89dba
AM
4577 plt_stub, sizeof (plt_stub));
4578
ce558b89
AM
4579 if ((htab->etab.splt->output_offset
4580 + htab->etab.splt->output_section->vma
4581 + htab->etab.splt->size)
894891db
NC
4582 != (sgot->output_offset
4583 + sgot->output_section->vma))
47d89dba 4584 {
4eca0228 4585 _bfd_error_handler
47d89dba 4586 (_(".got section not immediately after .plt section"));
b34976b6 4587 return FALSE;
47d89dba
AM
4588 }
4589 }
4590 }
30667bf3 4591
b34976b6 4592 return TRUE;
30667bf3 4593}
252b5132 4594
30667bf3
AM
4595/* Called when writing out an object file to decide the type of a
4596 symbol. */
4597static int
c39a58e6 4598elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4599{
4600 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4601 return STT_PARISC_MILLI;
4602 else
4603 return type;
252b5132
RH
4604}
4605
4606/* Misc BFD support code. */
30667bf3
AM
4607#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4608#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4609#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4610#define elf_info_to_howto elf_hppa_info_to_howto
4611#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4612
252b5132 4613/* Stuff for the BFD linker. */
c46b7515 4614#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4615#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4616#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4617#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4618#define elf_backend_check_relocs elf32_hppa_check_relocs
4619#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4620#define elf_backend_fake_sections elf_hppa_fake_sections
4621#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4622#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4623#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4624#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4625#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4626#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4627#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4628#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4629#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4630#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4631#define elf_backend_object_p elf32_hppa_object_p
4632#define elf_backend_final_write_processing elf_hppa_final_write_processing
4633#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4634#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4635#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4636
4637#define elf_backend_can_gc_sections 1
51b64d56 4638#define elf_backend_can_refcount 1
30667bf3
AM
4639#define elf_backend_plt_alignment 2
4640#define elf_backend_want_got_plt 0
4641#define elf_backend_plt_readonly 0
4642#define elf_backend_want_plt_sym 0
74d1c347 4643#define elf_backend_got_header_size 8
5474d94f 4644#define elf_backend_want_dynrelro 1
f0fe0e16 4645#define elf_backend_rela_normal 1
64f52338 4646#define elf_backend_dtrel_excludes_plt 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 1.322901 seconds and 4 git commands to generate.