Add support for non-contiguous memory regions
[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
b3adc24a 2 Copyright (C) 1990-2020 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)
18338fce
JDA
74 : addil LR'lt_ptr+ltoff,%dp ; get PLT address
75 : ldo RR'lt_ptr+ltoff(%r1),%r22 ;
76 : ldw 0(%r22),%r21 ; get procedure entry point
46fe4e66 77 : bv %r0(%r21)
18338fce 78 : ldw 4(%r22),%r19 ; get new dlt value.
30667bf3
AM
79
80 Import stub to call shared library routine from shared library
81 (single sub-space version)
18338fce
JDA
82 : addil LR'ltoff,%r19 ; get PLT address
83 : ldo RR'ltoff(%r1),%r22
84 : ldw 0(%r22),%r21 ; get procedure entry point
46fe4e66 85 : bv %r0(%r21)
18338fce 86 : ldw 4(%r22),%r19 ; get new dlt value.
30667bf3
AM
87
88 Import stub to call shared library routine from normal object file
89 (multiple sub-space support)
18338fce
JDA
90 : addil LR'lt_ptr+ltoff,%dp ; get PLT address
91 : ldo RR'lt_ptr+ltoff(%r1),%r22 ;
92 : ldw 0(%r22),%r21 ; get procedure entry point
93 : ldsid (%r21),%r1 ; get target sid
94 : ldw 4(%r22),%r19 ; get new dlt value.
30667bf3
AM
95 : mtsp %r1,%sr0
96 : be 0(%sr0,%r21) ; branch to target
97 : stw %rp,-24(%sp) ; save rp
98
99 Import stub to call shared library routine from shared library
100 (multiple sub-space support)
18338fce
JDA
101 : addil LR'ltoff,%r19 ; get PLT address
102 : ldo RR'ltoff(%r1),%r22
103 : ldw 0(%r22),%r21 ; get procedure entry point
104 : ldsid (%r21),%r1 ; get target sid
105 : ldw 4(%r22),%r19 ; get new dlt value.
30667bf3
AM
106 : mtsp %r1,%sr0
107 : be 0(%sr0,%r21) ; branch to target
108 : stw %rp,-24(%sp) ; save rp
109
110 Export stub to return from shared lib routine (multiple sub-space support)
111 One of these is created for each exported procedure in a shared
112 library (and stored in the shared lib). Shared lib routines are
113 called via the first instruction in the export stub so that we can
114 do an inter-space return. Not required for single sub-space.
115 : bl,n X,%rp ; trap the return
116 : nop
117 : ldw -24(%sp),%rp ; restore the original rp
118 : ldsid (%rp),%r1
119 : mtsp %r1,%sr0
ae9a127f 120 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 121
875c0872
DA
122
123/* Variable names follow a coding style.
124 Please follow this (Apps Hungarian) style:
125
07d6d2b8 126 Structure/Variable Prefix
875c0872
DA
127 elf_link_hash_table "etab"
128 elf_link_hash_entry "eh"
68ffbac6 129
875c0872
DA
130 elf32_hppa_link_hash_table "htab"
131 elf32_hppa_link_hash_entry "hh"
132
133 bfd_hash_table "btab"
134 bfd_hash_entry "bh"
68ffbac6 135
875c0872
DA
136 bfd_hash_table containing stubs "bstab"
137 elf32_hppa_stub_hash_entry "hsh"
138
875c0872 139 Always remember to use GNU Coding Style. */
68ffbac6 140
30667bf3
AM
141#define PLT_ENTRY_SIZE 8
142#define GOT_ENTRY_SIZE 4
18338fce
JDA
143#define LONG_BRANCH_STUB_SIZE 8
144#define LONG_BRANCH_SHARED_STUB_SIZE 12
145#define IMPORT_STUB_SIZE 20
146#define IMPORT_SHARED_STUB_SIZE 32
147#define EXPORT_STUB_SIZE 24
30667bf3
AM
148#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
149
47d89dba
AM
150static const bfd_byte plt_stub[] =
151{
18338fce
JDA
152 0x0e, 0x80, 0x10, 0x95, /* 1: ldw 0(%r20),%r21 */
153 0xea, 0xa0, 0xc0, 0x00, /* bv %r0(%r21) */
47d89dba
AM
154 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
155#define PLT_STUB_ENTRY (3*4)
156 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
157 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
158 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
159 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
160};
161
30667bf3 162/* Section name for stubs is the associated section name plus this
29942be8
NC
163 string. */
164#define STUB_SUFFIX ".stub"
30667bf3 165
98ceb8ce
AM
166/* We don't need to copy certain PC- or GP-relative dynamic relocs
167 into a shared object's dynamic section. All the relocs of the
168 limited class we are interested in, are absolute. */
169#ifndef RELATIVE_DYNRELOCS
170#define RELATIVE_DYNRELOCS 0
446f2863 171#define IS_ABSOLUTE_RELOC(r_type) 1
287c7eaf 172#define pc_dynrelocs(hh) 0
30667bf3
AM
173#endif
174
4fc8051d
AM
175/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
176 copying dynamic variables from a shared lib into an app's dynbss
177 section, and instead use a dynamic relocation to point into the
178 shared lib. */
179#define ELIMINATE_COPY_RELOCS 1
180
9b52905e
NC
181enum elf32_hppa_stub_type
182{
30667bf3
AM
183 hppa_stub_long_branch,
184 hppa_stub_long_branch_shared,
185 hppa_stub_import,
186 hppa_stub_import_shared,
187 hppa_stub_export,
188 hppa_stub_none
189};
190
9b52905e
NC
191struct elf32_hppa_stub_hash_entry
192{
edd21aca 193 /* Base hash table entry structure. */
a63e02c7 194 struct bfd_hash_entry bh_root;
252b5132 195
edd21aca
AM
196 /* The stub section. */
197 asection *stub_sec;
198
199 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 200 bfd_vma stub_offset;
252b5132
RH
201
202 /* Given the symbol's value and its section we can determine its final
203 value when building the stubs (so the stub knows where to jump. */
30667bf3 204 bfd_vma target_value;
252b5132 205 asection *target_section;
30667bf3
AM
206
207 enum elf32_hppa_stub_type stub_type;
208
209 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 210 struct elf32_hppa_link_hash_entry *hh;
30667bf3 211
25f72752
AM
212 /* Where this stub is being called from, or, in the case of combined
213 stub sections, the first input section in the group. */
214 asection *id_sec;
252b5132
RH
215};
216
2e684e75
AM
217enum _tls_type
218 {
219 GOT_UNKNOWN = 0,
220 GOT_NORMAL = 1,
221 GOT_TLS_GD = 2,
222 GOT_TLS_LDM = 4,
223 GOT_TLS_IE = 8
224 };
225
9b52905e
NC
226struct elf32_hppa_link_hash_entry
227{
a63e02c7 228 struct elf_link_hash_entry eh;
30667bf3
AM
229
230 /* A pointer to the most recently used stub hash entry against this
231 symbol. */
a63e02c7 232 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 233
30667bf3
AM
234 /* Used to count relocations for delayed sizing of relocation
235 sections. */
3bf083ed 236 struct elf_dyn_relocs *dyn_relocs;
30667bf3 237
2e684e75 238 ENUM_BITFIELD (_tls_type) tls_type : 8;
9b52905e 239
74d1c347
AM
240 /* Set if this symbol is used by a plabel reloc. */
241 unsigned int plabel:1;
30667bf3
AM
242};
243
9b52905e
NC
244struct elf32_hppa_link_hash_table
245{
252b5132 246 /* The main hash table. */
a63e02c7 247 struct elf_link_hash_table etab;
252b5132
RH
248
249 /* The stub hash table. */
a63e02c7 250 struct bfd_hash_table bstab;
252b5132 251
30667bf3
AM
252 /* Linker stub bfd. */
253 bfd *stub_bfd;
254
30667bf3 255 /* Linker call-backs. */
c39a58e6
AM
256 asection * (*add_stub_section) (const char *, asection *);
257 void (*layout_sections_again) (void);
30667bf3 258
25f72752
AM
259 /* Array to keep track of which stub sections have been created, and
260 information on stub grouping. */
9b52905e
NC
261 struct map_stub
262 {
25f72752
AM
263 /* This is the section to which stubs in the group will be
264 attached. */
265 asection *link_sec;
266 /* The stub section. */
267 asection *stub_sec;
25f72752 268 } *stub_group;
30667bf3 269
b4655ea9
AM
270 /* Assorted information used by elf32_hppa_size_stubs. */
271 unsigned int bfd_count;
7292b3ac 272 unsigned int top_index;
b4655ea9
AM
273 asection **input_list;
274 Elf_Internal_Sym **all_local_syms;
275
c46b7515
AM
276 /* Used during a final link to store the base of the text and data
277 segments so that we can perform SEGREL relocations. */
278 bfd_vma text_segment_base;
279 bfd_vma data_segment_base;
280
47d89dba
AM
281 /* Whether we support multiple sub-spaces for shared libs. */
282 unsigned int multi_subspace:1;
283
067fa4a6 284 /* Flags set when various size branches are detected. Used to
47d89dba
AM
285 select suitable defaults for the stub group size. */
286 unsigned int has_12bit_branch:1;
287 unsigned int has_17bit_branch:1;
067fa4a6 288 unsigned int has_22bit_branch:1;
47d89dba
AM
289
290 /* Set if we need a .plt stub to support lazy dynamic linking. */
291 unsigned int need_plt_stub:1;
ec338859 292
87d72d41
AM
293 /* Small local sym cache. */
294 struct sym_cache sym_cache;
9b52905e
NC
295
296 /* Data for LDM relocations. */
297 union
298 {
299 bfd_signed_vma refcount;
300 bfd_vma offset;
301 } tls_ldm_got;
252b5132
RH
302};
303
30667bf3
AM
304/* Various hash macros and functions. */
305#define hppa_link_hash_table(p) \
4dfe6ac6
NC
306 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
307 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 308
875c0872
DA
309#define hppa_elf_hash_entry(ent) \
310 ((struct elf32_hppa_link_hash_entry *)(ent))
311
312#define hppa_stub_hash_entry(ent) \
313 ((struct elf32_hppa_stub_hash_entry *)(ent))
314
30667bf3
AM
315#define hppa_stub_hash_lookup(table, string, create, copy) \
316 ((struct elf32_hppa_stub_hash_entry *) \
317 bfd_hash_lookup ((table), (string), (create), (copy)))
318
9b52905e
NC
319#define hppa_elf_local_got_tls_type(abfd) \
320 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
321
322#define hh_name(hh) \
323 (hh ? hh->eh.root.root.string : "<undef>")
324
325#define eh_name(eh) \
326 (eh ? eh->root.root.string : "<undef>")
327
252b5132
RH
328/* Assorted hash table functions. */
329
330/* Initialize an entry in the stub hash table. */
331
332static struct bfd_hash_entry *
c39a58e6
AM
333stub_hash_newfunc (struct bfd_hash_entry *entry,
334 struct bfd_hash_table *table,
335 const char *string)
252b5132 336{
252b5132
RH
337 /* Allocate the structure if it has not already been allocated by a
338 subclass. */
ebe50bae 339 if (entry == NULL)
30667bf3 340 {
ebe50bae
AM
341 entry = bfd_hash_allocate (table,
342 sizeof (struct elf32_hppa_stub_hash_entry));
343 if (entry == NULL)
344 return entry;
30667bf3 345 }
252b5132
RH
346
347 /* Call the allocation method of the superclass. */
ebe50bae
AM
348 entry = bfd_hash_newfunc (entry, table, string);
349 if (entry != NULL)
252b5132 350 {
875c0872 351 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 352
252b5132 353 /* Initialize the local fields. */
875c0872
DA
354 hsh = hppa_stub_hash_entry (entry);
355 hsh->stub_sec = NULL;
356 hsh->stub_offset = 0;
357 hsh->target_value = 0;
358 hsh->target_section = NULL;
359 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 360 hsh->hh = NULL;
875c0872 361 hsh->id_sec = NULL;
30667bf3
AM
362 }
363
ebe50bae 364 return entry;
30667bf3
AM
365}
366
30667bf3
AM
367/* Initialize an entry in the link hash table. */
368
369static struct bfd_hash_entry *
c39a58e6
AM
370hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
371 struct bfd_hash_table *table,
372 const char *string)
30667bf3 373{
30667bf3
AM
374 /* Allocate the structure if it has not already been allocated by a
375 subclass. */
ebe50bae 376 if (entry == NULL)
30667bf3 377 {
ebe50bae
AM
378 entry = bfd_hash_allocate (table,
379 sizeof (struct elf32_hppa_link_hash_entry));
380 if (entry == NULL)
381 return entry;
30667bf3
AM
382 }
383
384 /* Call the allocation method of the superclass. */
ebe50bae
AM
385 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
386 if (entry != NULL)
30667bf3 387 {
875c0872 388 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 389
30667bf3 390 /* Initialize the local fields. */
875c0872 391 hh = hppa_elf_hash_entry (entry);
a63e02c7 392 hh->hsh_cache = NULL;
875c0872
DA
393 hh->dyn_relocs = NULL;
394 hh->plabel = 0;
9b52905e 395 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
396 }
397
ebe50bae 398 return entry;
252b5132
RH
399}
400
68faa637
AM
401/* Free the derived linker hash table. */
402
403static void
d495ab0d 404elf32_hppa_link_hash_table_free (bfd *obfd)
68faa637
AM
405{
406 struct elf32_hppa_link_hash_table *htab
d495ab0d 407 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
68faa637
AM
408
409 bfd_hash_table_free (&htab->bstab);
d495ab0d 410 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM
411}
412
252b5132
RH
413/* Create the derived linker hash table. The PA ELF port uses the derived
414 hash table to keep information specific to the PA ELF linker (without
415 using static variables). */
416
417static struct bfd_link_hash_table *
c39a58e6 418elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 419{
875c0872 420 struct elf32_hppa_link_hash_table *htab;
986f0783 421 size_t amt = sizeof (*htab);
252b5132 422
7bf52ea2 423 htab = bfd_zmalloc (amt);
875c0872 424 if (htab == NULL)
252b5132 425 return NULL;
edd21aca 426
66eb6687 427 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
428 sizeof (struct elf32_hppa_link_hash_entry),
429 HPPA32_ELF_DATA))
252b5132 430 {
875c0872 431 free (htab);
252b5132
RH
432 return NULL;
433 }
edd21aca
AM
434
435 /* Init the stub hash table too. */
66eb6687
AM
436 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
437 sizeof (struct elf32_hppa_stub_hash_entry)))
d495ab0d
AM
438 {
439 _bfd_elf_link_hash_table_free (abfd);
440 return NULL;
441 }
442 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
edd21aca 443
875c0872
DA
444 htab->text_segment_base = (bfd_vma) -1;
445 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 446 return &htab->etab.root;
252b5132
RH
447}
448
a464198b
AM
449/* Initialize the linker stubs BFD so that we can use it for linker
450 created dynamic sections. */
451
452void
453elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
454{
455 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
456
457 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
458 htab->etab.dynobj = abfd;
459}
460
30667bf3
AM
461/* Build a name for an entry in the stub hash table. */
462
edd21aca 463static char *
c39a58e6
AM
464hppa_stub_name (const asection *input_section,
465 const asection *sym_sec,
875c0872
DA
466 const struct elf32_hppa_link_hash_entry *hh,
467 const Elf_Internal_Rela *rela)
edd21aca
AM
468{
469 char *stub_name;
dc810e39 470 bfd_size_type len;
edd21aca 471
875c0872 472 if (hh)
30667bf3 473 {
9b52905e 474 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
475 stub_name = bfd_malloc (len);
476 if (stub_name != NULL)
9b52905e
NC
477 sprintf (stub_name, "%08x_%s+%x",
478 input_section->id & 0xffffffff,
479 hh_name (hh),
480 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
481 }
482 else
edd21aca 483 {
30667bf3
AM
484 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
485 stub_name = bfd_malloc (len);
486 if (stub_name != NULL)
9b52905e
NC
487 sprintf (stub_name, "%08x_%x:%x+%x",
488 input_section->id & 0xffffffff,
489 sym_sec->id & 0xffffffff,
490 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
491 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
492 }
493 return stub_name;
494}
252b5132 495
30667bf3
AM
496/* Look up an entry in the stub hash. Stub entries are cached because
497 creating the stub name takes a bit of time. */
498
499static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
500hppa_get_stub_entry (const asection *input_section,
501 const asection *sym_sec,
875c0872
DA
502 struct elf32_hppa_link_hash_entry *hh,
503 const Elf_Internal_Rela *rela,
c39a58e6 504 struct elf32_hppa_link_hash_table *htab)
252b5132 505{
a63e02c7 506 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
507 const asection *id_sec;
508
509 /* If this input section is part of a group of sections sharing one
510 stub section, then use the id of the first section in the group.
511 Stub names need to include a section id, as there may well be
512 more than one stub used to reach say, printf, and we need to
513 distinguish between them. */
83c81bfe 514 id_sec = htab->stub_group[input_section->id].link_sec;
215f5271
AM
515 if (id_sec == NULL)
516 return NULL;
edd21aca 517
a63e02c7
DA
518 if (hh != NULL && hh->hsh_cache != NULL
519 && hh->hsh_cache->hh == hh
520 && hh->hsh_cache->id_sec == id_sec)
edd21aca 521 {
a63e02c7 522 hsh_entry = hh->hsh_cache;
30667bf3
AM
523 }
524 else
525 {
30667bf3 526 char *stub_name;
edd21aca 527
875c0872 528 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
529 if (stub_name == NULL)
530 return NULL;
edd21aca 531
a63e02c7 532 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 533 stub_name, FALSE, FALSE);
875c0872 534 if (hh != NULL)
a63e02c7 535 hh->hsh_cache = hsh_entry;
30667bf3
AM
536
537 free (stub_name);
edd21aca 538 }
30667bf3 539
a63e02c7 540 return hsh_entry;
30667bf3
AM
541}
542
30667bf3
AM
543/* Add a new stub entry to the stub hash. Not all fields of the new
544 stub entry are initialised. */
545
546static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
547hppa_add_stub (const char *stub_name,
548 asection *section,
549 struct elf32_hppa_link_hash_table *htab)
30667bf3 550{
25f72752 551 asection *link_sec;
30667bf3 552 asection *stub_sec;
875c0872 553 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 554
83c81bfe
AM
555 link_sec = htab->stub_group[section->id].link_sec;
556 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 557 if (stub_sec == NULL)
edd21aca 558 {
83c81bfe 559 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
560 if (stub_sec == NULL)
561 {
d4c88bbb 562 size_t namelen;
dc810e39 563 bfd_size_type len;
30667bf3
AM
564 char *s_name;
565
d4c88bbb
AM
566 namelen = strlen (link_sec->name);
567 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 568 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
569 if (s_name == NULL)
570 return NULL;
571
d4c88bbb
AM
572 memcpy (s_name, link_sec->name, namelen);
573 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 574 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
575 if (stub_sec == NULL)
576 return NULL;
83c81bfe 577 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 578 }
83c81bfe 579 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 580 }
252b5132 581
30667bf3 582 /* Enter this entry into the linker stub hash table. */
a63e02c7 583 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 584 TRUE, FALSE);
875c0872 585 if (hsh == NULL)
30667bf3 586 {
695344c0 587 /* xgettext:c-format */
871b3ab2 588 _bfd_error_handler (_("%pB: cannot create stub entry %s"),
4eca0228 589 section->owner, stub_name);
30667bf3 590 return NULL;
edd21aca
AM
591 }
592
875c0872
DA
593 hsh->stub_sec = stub_sec;
594 hsh->stub_offset = 0;
595 hsh->id_sec = link_sec;
596 return hsh;
edd21aca
AM
597}
598
30667bf3
AM
599/* Determine the type of stub needed, if any, for a call. */
600
601static enum elf32_hppa_stub_type
c39a58e6 602hppa_type_of_stub (asection *input_sec,
875c0872
DA
603 const Elf_Internal_Rela *rela,
604 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
605 bfd_vma destination,
606 struct bfd_link_info *info)
edd21aca 607{
edd21aca 608 bfd_vma location;
30667bf3
AM
609 bfd_vma branch_offset;
610 bfd_vma max_branch_offset;
611 unsigned int r_type;
612
875c0872 613 if (hh != NULL
a63e02c7
DA
614 && hh->eh.plt.offset != (bfd_vma) -1
615 && hh->eh.dynindx != -1
875c0872 616 && !hh->plabel
0e1862bb 617 && (bfd_link_pic (info)
a63e02c7
DA
618 || !hh->eh.def_regular
619 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 620 {
067fa4a6
AM
621 /* We need an import stub. Decide between hppa_stub_import
622 and hppa_stub_import_shared later. */
30667bf3
AM
623 return hppa_stub_import;
624 }
edd21aca 625
f6a8b8c7
AM
626 if (destination == (bfd_vma) -1)
627 return hppa_stub_none;
628
30667bf3
AM
629 /* Determine where the call point is. */
630 location = (input_sec->output_offset
631 + input_sec->output_section->vma
875c0872 632 + rela->r_offset);
edd21aca 633
30667bf3 634 branch_offset = destination - location - 8;
875c0872 635 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 636
30667bf3
AM
637 /* Determine if a long branch stub is needed. parisc branch offsets
638 are relative to the second instruction past the branch, ie. +8
639 bytes on from the branch instruction location. The offset is
640 signed and counts in units of 4 bytes. */
641 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
642 max_branch_offset = (1 << (17 - 1)) << 2;
643
30667bf3 644 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
645 max_branch_offset = (1 << (12 - 1)) << 2;
646
25f72752 647 else /* R_PARISC_PCREL22F. */
9b52905e 648 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 649
30667bf3 650 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
651 return hppa_stub_long_branch;
652
30667bf3
AM
653 return hppa_stub_none;
654}
edd21aca 655
30667bf3
AM
656/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
657 IN_ARG contains the link info pointer. */
edd21aca 658
30667bf3
AM
659#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
660#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 661
30667bf3 662#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 663#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 664#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 665
3ee1d854
AM
666#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
667#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 668#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 669#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 670
3ee1d854
AM
671#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
672#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 673
18338fce
JDA
674#define LDO_R1_R22 0x34360000 /* ldo RR'XXX(%r1),%r22 */
675#define LDW_R22_R21 0x0ec01095 /* ldw 0(%r22),%r21 */
676#define LDW_R22_R19 0x0ec81093 /* ldw 4(%r22),%r19 */
677
30667bf3
AM
678#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
679#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
680#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
681#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 682
067fa4a6 683#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
684#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
685#define NOP 0x08000240 /* nop */
686#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
687#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
688#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 689
30667bf3
AM
690#ifndef R19_STUBS
691#define R19_STUBS 1
692#endif
edd21aca 693
30667bf3
AM
694#if R19_STUBS
695#define LDW_R1_DLT LDW_R1_R19
696#else
697#define LDW_R1_DLT LDW_R1_DP
698#endif
edd21aca 699
b34976b6 700static bfd_boolean
875c0872 701hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 702{
875c0872 703 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 704 struct bfd_link_info *info;
83c81bfe 705 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
706 asection *stub_sec;
707 bfd *stub_bfd;
708 bfd_byte *loc;
709 bfd_vma sym_value;
74d1c347 710 bfd_vma insn;
8dea1268 711 bfd_vma off;
74d1c347 712 int val;
30667bf3 713 int size;
edd21aca 714
30667bf3 715 /* Massage our args to the form they really have. */
875c0872
DA
716 hsh = hppa_stub_hash_entry (bh);
717 info = (struct bfd_link_info *)in_arg;
30667bf3 718
83c81bfe 719 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
720 if (htab == NULL)
721 return FALSE;
722
875c0872 723 stub_sec = hsh->stub_sec;
edd21aca 724
30667bf3 725 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
726 hsh->stub_offset = stub_sec->size;
727 loc = stub_sec->contents + hsh->stub_offset;
252b5132 728
30667bf3
AM
729 stub_bfd = stub_sec->owner;
730
875c0872 731 switch (hsh->stub_type)
30667bf3
AM
732 {
733 case hppa_stub_long_branch:
abf874aa
CL
734 /* Fail if the target section could not be assigned to an output
735 section. The user should fix his linker script. */
736 if (hsh->target_section->output_section == NULL
737 && info->non_contiguous_regions)
738 {
739 _bfd_error_handler (_("Could not assign '%pA' to an output section. "
740 "Retry without --enable-non-contiguous-regions.\n"),
741 hsh->target_section);
742 abort();
743 }
744
30667bf3
AM
745 /* Create the long branch. A long branch is formed with "ldil"
746 loading the upper bits of the target address into a register,
747 then branching with "be" which adds in the lower bits.
748 The "be" has its delay slot nullified. */
875c0872
DA
749 sym_value = (hsh->target_value
750 + hsh->target_section->output_offset
751 + hsh->target_section->output_section->vma);
30667bf3 752
c39a58e6 753 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 754 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
755 bfd_put_32 (stub_bfd, insn, loc);
756
c39a58e6 757 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 758 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
759 bfd_put_32 (stub_bfd, insn, loc + 4);
760
18338fce 761 size = LONG_BRANCH_STUB_SIZE;
edd21aca
AM
762 break;
763
30667bf3 764 case hppa_stub_long_branch_shared:
abf874aa
CL
765 /* Fail if the target section could not be assigned to an output
766 section. The user should fix his linker script. */
767 if (hsh->target_section->output_section == NULL
768 && info->non_contiguous_regions)
769 {
770 _bfd_error_handler (_("Could not assign %pA to an output section. "
771 "Retry without --enable-non-contiguous-regions.\n"),
772 hsh->target_section);
773 abort();
774 }
30667bf3 775 /* Branches are relative. This is where we are going to. */
875c0872
DA
776 sym_value = (hsh->target_value
777 + hsh->target_section->output_offset
778 + hsh->target_section->output_section->vma);
30667bf3
AM
779
780 /* And this is where we are coming from, more or less. */
875c0872 781 sym_value -= (hsh->stub_offset
30667bf3
AM
782 + stub_sec->output_offset
783 + stub_sec->output_section->vma);
784
74d1c347 785 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 786 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 787 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
788 bfd_put_32 (stub_bfd, insn, loc + 4);
789
47d89dba 790 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 791 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3 792 bfd_put_32 (stub_bfd, insn, loc + 8);
18338fce 793 size = LONG_BRANCH_SHARED_STUB_SIZE;
30667bf3 794 break;
edd21aca 795
30667bf3
AM
796 case hppa_stub_import:
797 case hppa_stub_import_shared:
a63e02c7 798 off = hsh->hh->eh.plt.offset;
8dea1268 799 if (off >= (bfd_vma) -2)
49e9d0d3 800 abort ();
8dea1268
AM
801
802 off &= ~ (bfd_vma) 1;
803 sym_value = (off
ce558b89
AM
804 + htab->etab.splt->output_offset
805 + htab->etab.splt->output_section->vma
806 - elf_gp (htab->etab.splt->output_section->owner));
30667bf3
AM
807
808 insn = ADDIL_DP;
809#if R19_STUBS
875c0872 810 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
811 insn = ADDIL_R19;
812#endif
18338fce
JDA
813
814 /* Load function descriptor address into register %r22. It is
815 sometimes needed for lazy binding. */
c39a58e6 816 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 817 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 818 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 819
c39a58e6 820 val = hppa_field_adjust (sym_value, 0, e_rrsel);
18338fce 821 insn = hppa_rebuild_insn ((int) LDO_R1_R22, val, 14);
30667bf3 822 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 823
18338fce
JDA
824 bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R21, loc + 8);
825
83c81bfe 826 if (htab->multi_subspace)
30667bf3 827 {
74d1c347 828 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
18338fce
JDA
829 bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16);
830 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 20);
831 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 24);
832 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 28);
252b5132 833
18338fce 834 size = IMPORT_SHARED_STUB_SIZE;
30667bf3
AM
835 }
836 else
837 {
18338fce
JDA
838 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 12);
839 bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16);
252b5132 840
18338fce 841 size = IMPORT_STUB_SIZE;
30667bf3 842 }
252b5132 843
30667bf3 844 break;
252b5132 845
30667bf3 846 case hppa_stub_export:
abf874aa
CL
847 /* Fail if the target section could not be assigned to an output
848 section. The user should fix his linker script. */
849 if (hsh->target_section->output_section == NULL
850 && info->non_contiguous_regions)
851 {
852 _bfd_error_handler (_("Could not assign %pA to an output section. "
853 "Retry without --enable-non-contiguous-regions.\n"),
854 hsh->target_section);
855 abort();
856 }
30667bf3 857 /* Branches are relative. This is where we are going to. */
875c0872
DA
858 sym_value = (hsh->target_value
859 + hsh->target_section->output_offset
860 + hsh->target_section->output_section->vma);
252b5132 861
30667bf3 862 /* And this is where we are coming from. */
875c0872 863 sym_value -= (hsh->stub_offset
30667bf3
AM
864 + stub_sec->output_offset
865 + stub_sec->output_section->vma);
edd21aca 866
067fa4a6
AM
867 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
868 && (!htab->has_22bit_branch
869 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 870 {
4eca0228 871 _bfd_error_handler
695344c0 872 /* xgettext:c-format */
2dcf00ce
AM
873 (_("%pB(%pA+%#" PRIx64 "): "
874 "cannot reach %s, recompile with -ffunction-sections"),
875c0872 875 hsh->target_section->owner,
d003868e 876 stub_sec,
2dcf00ce 877 (uint64_t) hsh->stub_offset,
a63e02c7 878 hsh->bh_root.string);
30667bf3 879 bfd_set_error (bfd_error_bad_value);
b34976b6 880 return FALSE;
252b5132 881 }
30667bf3 882
74d1c347 883 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
884 if (!htab->has_22bit_branch)
885 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
886 else
887 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
888 bfd_put_32 (stub_bfd, insn, loc);
889
07d6d2b8 890 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
74d1c347
AM
891 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
892 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
893 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
894 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
895
896 /* Point the function symbol at the stub. */
a63e02c7
DA
897 hsh->hh->eh.root.u.def.section = stub_sec;
898 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3 899
18338fce 900 size = EXPORT_STUB_SIZE;
30667bf3
AM
901 break;
902
903 default:
904 BFD_FAIL ();
b34976b6 905 return FALSE;
252b5132
RH
906 }
907
eea6121a 908 stub_sec->size += size;
b34976b6 909 return TRUE;
252b5132
RH
910}
911
30667bf3
AM
912#undef LDIL_R1
913#undef BE_SR4_R1
914#undef BL_R1
915#undef ADDIL_R1
916#undef DEPI_R1
30667bf3
AM
917#undef LDW_R1_R21
918#undef LDW_R1_DLT
919#undef LDW_R1_R19
920#undef ADDIL_R19
921#undef LDW_R1_DP
922#undef LDSID_R21_R1
923#undef MTSP_R1
924#undef BE_SR0_R21
925#undef STW_RP
926#undef BV_R0_R21
927#undef BL_RP
928#undef NOP
929#undef LDW_RP
930#undef LDSID_RP_R1
931#undef BE_SR0_RP
252b5132 932
30667bf3
AM
933/* As above, but don't actually build the stub. Just bump offset so
934 we know stub section sizes. */
935
b34976b6 936static bfd_boolean
875c0872 937hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 938{
875c0872 939 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 940 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
941 int size;
942
943 /* Massage our args to the form they really have. */
875c0872 944 hsh = hppa_stub_hash_entry (bh);
c39a58e6 945 htab = in_arg;
30667bf3 946
875c0872 947 if (hsh->stub_type == hppa_stub_long_branch)
18338fce 948 size = LONG_BRANCH_STUB_SIZE;
875c0872 949 else if (hsh->stub_type == hppa_stub_long_branch_shared)
18338fce 950 size = LONG_BRANCH_SHARED_STUB_SIZE;
875c0872 951 else if (hsh->stub_type == hppa_stub_export)
18338fce 952 size = EXPORT_STUB_SIZE;
74d1c347 953 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 954 {
83c81bfe 955 if (htab->multi_subspace)
18338fce 956 size = IMPORT_SHARED_STUB_SIZE;
30667bf3 957 else
18338fce 958 size = IMPORT_STUB_SIZE;
30667bf3 959 }
252b5132 960
875c0872 961 hsh->stub_sec->size += size;
b34976b6 962 return TRUE;
30667bf3 963}
252b5132 964
30667bf3
AM
965/* Return nonzero if ABFD represents an HPPA ELF32 file.
966 Additionally we set the default architecture and machine. */
967
b34976b6 968static bfd_boolean
c39a58e6 969elf32_hppa_object_p (bfd *abfd)
30667bf3 970{
24a5e751
L
971 Elf_Internal_Ehdr * i_ehdrp;
972 unsigned int flags;
252b5132 973
24a5e751
L
974 i_ehdrp = elf_elfheader (abfd);
975 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
976 {
9c55345c 977 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 978 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 979 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 980 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 981 return FALSE;
24a5e751 982 }
225247f0
JT
983 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
984 {
985 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
986 but the kernel produces corefiles with OSABI=SysV. */
987 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
988 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
989 return FALSE;
990 }
24a5e751
L
991 else
992 {
993 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 994 return FALSE;
24a5e751
L
995 }
996
997 flags = i_ehdrp->e_flags;
30667bf3
AM
998 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
999 {
1000 case EFA_PARISC_1_0:
1001 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
1002 case EFA_PARISC_1_1:
1003 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
1004 case EFA_PARISC_2_0:
1005 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
1006 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
1007 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
1008 }
b34976b6 1009 return TRUE;
252b5132
RH
1010}
1011
30667bf3
AM
1012/* Create the .plt and .got sections, and set up our hash table
1013 short-cuts to various dynamic sections. */
1014
b34976b6 1015static bfd_boolean
c39a58e6 1016elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 1017{
83c81bfe 1018 struct elf32_hppa_link_hash_table *htab;
875c0872 1019 struct elf_link_hash_entry *eh;
edd21aca 1020
30667bf3 1021 /* Don't try to create the .plt and .got twice. */
83c81bfe 1022 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1023 if (htab == NULL)
1024 return FALSE;
ce558b89 1025 if (htab->etab.splt != NULL)
b34976b6 1026 return TRUE;
edd21aca 1027
30667bf3
AM
1028 /* Call the generic code to do most of the work. */
1029 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 1030 return FALSE;
252b5132 1031
b18e2ae5
AM
1032 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1033 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
1034 eh = elf_hash_table (info)->hgot;
1035 eh->forced_local = 0;
1036 eh->other = STV_DEFAULT;
1037 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1038}
1039
ebe50bae
AM
1040/* Copy the extra info we tack onto an elf_link_hash_entry. */
1041
51b64d56 1042static void
fcfa13d2 1043elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1044 struct elf_link_hash_entry *eh_dir,
1045 struct elf_link_hash_entry *eh_ind)
ebe50bae 1046{
875c0872 1047 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1048
875c0872
DA
1049 hh_dir = hppa_elf_hash_entry (eh_dir);
1050 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1051
287c7eaf
AM
1052 if (hh_ind->dyn_relocs != NULL
1053 && eh_ind->root.type == bfd_link_hash_indirect)
ebe50bae 1054 {
875c0872 1055 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1056 {
3bf083ed
AM
1057 struct elf_dyn_relocs **hdh_pp;
1058 struct elf_dyn_relocs *hdh_p;
bbd7ec4a 1059
fcfa13d2 1060 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1061 list. Merge any entries against the same section. */
875c0872 1062 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1063 {
3bf083ed 1064 struct elf_dyn_relocs *hdh_q;
bbd7ec4a 1065
fcfa13d2
AM
1066 for (hdh_q = hh_dir->dyn_relocs;
1067 hdh_q != NULL;
3bf083ed 1068 hdh_q = hdh_q->next)
875c0872 1069 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1070 {
1071#if RELATIVE_DYNRELOCS
3bf083ed 1072 hdh_q->pc_count += hdh_p->pc_count;
bbd7ec4a 1073#endif
875c0872 1074 hdh_q->count += hdh_p->count;
3bf083ed 1075 *hdh_pp = hdh_p->next;
bbd7ec4a
AM
1076 break;
1077 }
875c0872 1078 if (hdh_q == NULL)
3bf083ed 1079 hdh_pp = &hdh_p->next;
bbd7ec4a 1080 }
875c0872 1081 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1082 }
1083
875c0872
DA
1084 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1085 hh_ind->dyn_relocs = NULL;
ebe50bae 1086 }
ebe50bae 1087
4a7e5234 1088 if (eh_ind->root.type == bfd_link_hash_indirect)
9b52905e 1089 {
4a7e5234
AM
1090 hh_dir->plabel |= hh_ind->plabel;
1091 hh_dir->tls_type |= hh_ind->tls_type;
1092 hh_ind->tls_type = GOT_UNKNOWN;
9b52905e 1093 }
4a7e5234
AM
1094
1095 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
9b52905e
NC
1096}
1097
1098static int
1099elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1100 int r_type, int is_local ATTRIBUTE_UNUSED)
1101{
1102 /* For now we don't support linker optimizations. */
1103 return r_type;
ebe50bae
AM
1104}
1105
d45b7d74
DA
1106/* Return a pointer to the local GOT, PLT and TLS reference counts
1107 for ABFD. Returns NULL if the storage allocation fails. */
1108
1109static bfd_signed_vma *
1110hppa32_elf_local_refcounts (bfd *abfd)
1111{
1112 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1113 bfd_signed_vma *local_refcounts;
68ffbac6 1114
d45b7d74
DA
1115 local_refcounts = elf_local_got_refcounts (abfd);
1116 if (local_refcounts == NULL)
1117 {
1118 bfd_size_type size;
1119
1120 /* Allocate space for local GOT and PLT reference
1121 counts. Done this way to save polluting elf_obj_tdata
1122 with another target specific pointer. */
1123 size = symtab_hdr->sh_info;
1124 size *= 2 * sizeof (bfd_signed_vma);
1125 /* Add in space to store the local GOT TLS types. */
1126 size += symtab_hdr->sh_info;
1127 local_refcounts = bfd_zalloc (abfd, size);
1128 if (local_refcounts == NULL)
1129 return NULL;
1130 elf_local_got_refcounts (abfd) = local_refcounts;
1131 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1132 symtab_hdr->sh_info);
1133 }
1134 return local_refcounts;
1135}
1136
1137
30667bf3 1138/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1139 calculate needed space in the global offset table, procedure linkage
1140 table, and dynamic reloc sections. At this point we haven't
1141 necessarily read all the input files. */
252b5132 1142
b34976b6 1143static bfd_boolean
c39a58e6
AM
1144elf32_hppa_check_relocs (bfd *abfd,
1145 struct bfd_link_info *info,
1146 asection *sec,
1147 const Elf_Internal_Rela *relocs)
252b5132 1148{
30667bf3 1149 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1150 struct elf_link_hash_entry **eh_syms;
1151 const Elf_Internal_Rela *rela;
1152 const Elf_Internal_Rela *rela_end;
83c81bfe 1153 struct elf32_hppa_link_hash_table *htab;
30667bf3 1154 asection *sreloc;
30667bf3 1155
0e1862bb 1156 if (bfd_link_relocatable (info))
b34976b6 1157 return TRUE;
30667bf3 1158
83c81bfe 1159 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1160 if (htab == NULL)
1161 return FALSE;
30667bf3 1162 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1163 eh_syms = elf_sym_hashes (abfd);
30667bf3 1164 sreloc = NULL;
30667bf3 1165
875c0872
DA
1166 rela_end = relocs + sec->reloc_count;
1167 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1168 {
1169 enum {
1170 NEED_GOT = 1,
1171 NEED_PLT = 2,
1172 NEED_DYNREL = 4,
98ceb8ce 1173 PLT_PLABEL = 8
30667bf3 1174 };
edd21aca 1175
30667bf3 1176 unsigned int r_symndx, r_type;
875c0872
DA
1177 struct elf32_hppa_link_hash_entry *hh;
1178 int need_entry = 0;
252b5132 1179
875c0872 1180 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1181
30667bf3 1182 if (r_symndx < symtab_hdr->sh_info)
875c0872 1183 hh = NULL;
30667bf3 1184 else
f7c5057a 1185 {
875c0872 1186 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1187 while (hh->eh.root.type == bfd_link_hash_indirect
1188 || hh->eh.root.type == bfd_link_hash_warning)
1189 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
f7c5057a 1190 }
252b5132 1191
875c0872 1192 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1193 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1194
30667bf3
AM
1195 switch (r_type)
1196 {
1197 case R_PARISC_DLTIND14F:
1198 case R_PARISC_DLTIND14R:
1199 case R_PARISC_DLTIND21L:
1200 /* This symbol requires a global offset table entry. */
1201 need_entry = NEED_GOT;
30667bf3
AM
1202 break;
1203
1204 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1205 case R_PARISC_PLABEL21L:
1206 case R_PARISC_PLABEL32:
74d1c347 1207 /* If the addend is non-zero, we break badly. */
875c0872 1208 if (rela->r_addend != 0)
49e9d0d3 1209 abort ();
74d1c347
AM
1210
1211 /* If we are creating a shared library, then we need to
1212 create a PLT entry for all PLABELs, because PLABELs with
1213 local symbols may be passed via a pointer to another
1214 object. Additionally, output a dynamic relocation
4dc86686 1215 pointing to the PLT entry.
875c0872 1216
4dc86686
AM
1217 For executables, the original 32-bit ABI allowed two
1218 different styles of PLABELs (function pointers): For
1219 global functions, the PLABEL word points into the .plt
1220 two bytes past a (function address, gp) pair, and for
1221 local functions the PLABEL points directly at the
1222 function. The magic +2 for the first type allows us to
1223 differentiate between the two. As you can imagine, this
1224 is a real pain when it comes to generating code to call
1225 functions indirectly or to compare function pointers.
1226 We avoid the mess by always pointing a PLABEL into the
1227 .plt, even for local functions. */
127e8e9f
AM
1228 need_entry = PLT_PLABEL | NEED_PLT;
1229 if (bfd_link_pic (info))
1230 need_entry |= NEED_DYNREL;
30667bf3
AM
1231 break;
1232
1233 case R_PARISC_PCREL12F:
83c81bfe 1234 htab->has_12bit_branch = 1;
067fa4a6
AM
1235 goto branch_common;
1236
30667bf3
AM
1237 case R_PARISC_PCREL17C:
1238 case R_PARISC_PCREL17F:
83c81bfe 1239 htab->has_17bit_branch = 1;
067fa4a6
AM
1240 goto branch_common;
1241
30667bf3 1242 case R_PARISC_PCREL22F:
067fa4a6
AM
1243 htab->has_22bit_branch = 1;
1244 branch_common:
47d89dba
AM
1245 /* Function calls might need to go through the .plt, and
1246 might require long branch stubs. */
875c0872 1247 if (hh == NULL)
30667bf3
AM
1248 {
1249 /* We know local syms won't need a .plt entry, and if
1250 they need a long branch stub we can't guarantee that
1251 we can reach the stub. So just flag an error later
1252 if we're doing a shared link and find we need a long
1253 branch stub. */
1254 continue;
1255 }
1256 else
1257 {
1258 /* Global symbols will need a .plt entry if they remain
1259 global, and in most cases won't need a long branch
1260 stub. Unfortunately, we have to cater for the case
1261 where a symbol is forced local by versioning, or due
1262 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1263 need_entry = NEED_PLT;
a63e02c7 1264 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1265 need_entry = 0;
30667bf3
AM
1266 }
1267 break;
1268
36751eee 1269 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1270 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1271 case R_PARISC_PCREL14F: /* PC relative load/store. */
1272 case R_PARISC_PCREL14R:
1273 case R_PARISC_PCREL17R: /* External branches. */
1274 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1275 case R_PARISC_PCREL32:
30667bf3
AM
1276 /* We don't need to propagate the relocation if linking a
1277 shared object since these are section relative. */
1278 continue;
1279
1280 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1281 case R_PARISC_DPREL14R:
1282 case R_PARISC_DPREL21L:
0e1862bb 1283 if (bfd_link_pic (info))
30667bf3 1284 {
4eca0228 1285 _bfd_error_handler
695344c0 1286 /* xgettext:c-format */
871b3ab2 1287 (_("%pB: relocation %s can not be used when making a shared object; recompile with -fPIC"),
d003868e 1288 abfd,
30667bf3
AM
1289 elf_hppa_howto_table[r_type].name);
1290 bfd_set_error (bfd_error_bad_value);
b34976b6 1291 return FALSE;
30667bf3
AM
1292 }
1293 /* Fall through. */
1294
1295 case R_PARISC_DIR17F: /* Used for external branches. */
1296 case R_PARISC_DIR17R:
47d89dba
AM
1297 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1298 case R_PARISC_DIR14R:
30667bf3 1299 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1300 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1301 /* We may want to output a dynamic relocation later. */
1302 need_entry = NEED_DYNREL;
1303 break;
1304
1305 /* This relocation describes the C++ object vtable hierarchy.
1306 Reconstruct it for later use during GC. */
1307 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1308 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1309 return FALSE;
30667bf3
AM
1310 continue;
1311
1312 /* This relocation describes which C++ vtable entries are actually
1313 used. Record for later use during GC. */
1314 case R_PARISC_GNU_VTENTRY:
a0ea3a14 1315 if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1316 return FALSE;
30667bf3
AM
1317 continue;
1318
9b52905e
NC
1319 case R_PARISC_TLS_GD21L:
1320 case R_PARISC_TLS_GD14R:
1321 case R_PARISC_TLS_LDM21L:
1322 case R_PARISC_TLS_LDM14R:
1323 need_entry = NEED_GOT;
1324 break;
1325
1326 case R_PARISC_TLS_IE21L:
1327 case R_PARISC_TLS_IE14R:
2e684e75 1328 if (bfd_link_dll (info))
07d6d2b8 1329 info->flags |= DF_STATIC_TLS;
9b52905e
NC
1330 need_entry = NEED_GOT;
1331 break;
1332
30667bf3
AM
1333 default:
1334 continue;
1335 }
1336
1337 /* Now carry out our orders. */
1338 if (need_entry & NEED_GOT)
1339 {
2e684e75
AM
1340 int tls_type = GOT_NORMAL;
1341
9b52905e
NC
1342 switch (r_type)
1343 {
1344 default:
9b52905e
NC
1345 break;
1346 case R_PARISC_TLS_GD21L:
1347 case R_PARISC_TLS_GD14R:
2e684e75 1348 tls_type = GOT_TLS_GD;
9b52905e
NC
1349 break;
1350 case R_PARISC_TLS_LDM21L:
1351 case R_PARISC_TLS_LDM14R:
2e684e75 1352 tls_type = GOT_TLS_LDM;
9b52905e
NC
1353 break;
1354 case R_PARISC_TLS_IE21L:
1355 case R_PARISC_TLS_IE14R:
2e684e75 1356 tls_type = GOT_TLS_IE;
9b52905e
NC
1357 break;
1358 }
1359
30667bf3 1360 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1361 relocation for this entry. */
ce558b89 1362 if (htab->etab.sgot == NULL)
30667bf3 1363 {
a63e02c7 1364 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1365 return FALSE;
30667bf3
AM
1366 }
1367
2e684e75 1368 if (hh != NULL)
30667bf3 1369 {
2e684e75
AM
1370 if (tls_type == GOT_TLS_LDM)
1371 htab->tls_ldm_got.refcount += 1;
9b52905e 1372 else
2e684e75
AM
1373 hh->eh.got.refcount += 1;
1374 hh->tls_type |= tls_type;
1375 }
1376 else
1377 {
1378 bfd_signed_vma *local_got_refcounts;
9b52905e 1379
2e684e75
AM
1380 /* This is a global offset table entry for a local symbol. */
1381 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1382 if (local_got_refcounts == NULL)
1383 return FALSE;
1384 if (tls_type == GOT_TLS_LDM)
1385 htab->tls_ldm_got.refcount += 1;
1386 else
1387 local_got_refcounts[r_symndx] += 1;
9b52905e 1388
2e684e75 1389 hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type;
30667bf3
AM
1390 }
1391 }
1392
1393 if (need_entry & NEED_PLT)
1394 {
1395 /* If we are creating a shared library, and this is a reloc
1396 against a weak symbol or a global symbol in a dynamic
1397 object, then we will be creating an import stub and a
1398 .plt entry for the symbol. Similarly, on a normal link
1399 to symbols defined in a dynamic object we'll need the
1400 import stub and a .plt entry. We don't know yet whether
1401 the symbol is defined or not, so make an entry anyway and
1402 clean up later in adjust_dynamic_symbol. */
1403 if ((sec->flags & SEC_ALLOC) != 0)
1404 {
875c0872 1405 if (hh != NULL)
30667bf3 1406 {
a63e02c7
DA
1407 hh->eh.needs_plt = 1;
1408 hh->eh.plt.refcount += 1;
74d1c347 1409
36605136
AM
1410 /* If this .plt entry is for a plabel, mark it so
1411 that adjust_dynamic_symbol will keep the entry
1412 even if it appears to be local. */
74d1c347 1413 if (need_entry & PLT_PLABEL)
875c0872 1414 hh->plabel = 1;
74d1c347
AM
1415 }
1416 else if (need_entry & PLT_PLABEL)
1417 {
3ac8354b 1418 bfd_signed_vma *local_got_refcounts;
68fb2e56 1419 bfd_signed_vma *local_plt_refcounts;
74d1c347 1420
d45b7d74 1421 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1422 if (local_got_refcounts == NULL)
d45b7d74 1423 return FALSE;
68fb2e56
AM
1424 local_plt_refcounts = (local_got_refcounts
1425 + symtab_hdr->sh_info);
ebe50bae 1426 local_plt_refcounts[r_symndx] += 1;
30667bf3 1427 }
30667bf3
AM
1428 }
1429 }
1430
d336fa6d
AM
1431 if ((need_entry & NEED_DYNREL) != 0
1432 && (sec->flags & SEC_ALLOC) != 0)
30667bf3
AM
1433 {
1434 /* Flag this symbol as having a non-got, non-plt reference
1435 so that we generate copy relocs if it turns out to be
1436 dynamic. */
4a7e5234 1437 if (hh != NULL)
a63e02c7 1438 hh->eh.non_got_ref = 1;
30667bf3
AM
1439
1440 /* If we are creating a shared library then we need to copy
1441 the reloc into the shared library. However, if we are
1442 linking with -Bsymbolic, we need only copy absolute
1443 relocs or relocs against symbols that are not defined in
1444 an object we are including in the link. PC- or DP- or
1445 DLT-relative relocs against any local sym or global sym
1446 with DEF_REGULAR set, can be discarded. At this point we
1447 have not seen all the input files, so it is possible that
1448 DEF_REGULAR is not set now but will be set later (it is
1449 never cleared). We account for that possibility below by
98ceb8ce 1450 storing information in the dyn_relocs field of the
30667bf3
AM
1451 hash table entry.
1452
1453 A similar situation to the -Bsymbolic case occurs when
1454 creating shared libraries and symbol visibility changes
1455 render the symbol local.
1456
1457 As it turns out, all the relocs we will be creating here
1458 are absolute, so we cannot remove them on -Bsymbolic
1459 links or visibility changes anyway. A STUB_REL reloc
1460 is absolute too, as in that case it is the reloc in the
1461 stub we will be creating, rather than copying the PCREL
56882138
AM
1462 reloc in the branch.
1463
1464 If on the other hand, we are creating an executable, we
1465 may need to keep relocations for symbols satisfied by a
1466 dynamic library if we manage to avoid copy relocs for the
1467 symbol. */
0e1862bb 1468 if ((bfd_link_pic (info)
446f2863 1469 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1470 || (hh != NULL
a496fbc8 1471 && (!SYMBOLIC_BIND (info, &hh->eh)
a63e02c7
DA
1472 || hh->eh.root.type == bfd_link_hash_defweak
1473 || !hh->eh.def_regular))))
4fc8051d 1474 || (ELIMINATE_COPY_RELOCS
0e1862bb 1475 && !bfd_link_pic (info)
875c0872 1476 && hh != NULL
a63e02c7
DA
1477 && (hh->eh.root.type == bfd_link_hash_defweak
1478 || !hh->eh.def_regular)))
30667bf3 1479 {
3bf083ed
AM
1480 struct elf_dyn_relocs *hdh_p;
1481 struct elf_dyn_relocs **hdh_head;
ec338859 1482
30667bf3
AM
1483 /* Create a reloc section in dynobj and make room for
1484 this reloc. */
98ceb8ce 1485 if (sreloc == NULL)
30667bf3 1486 {
83bac4b0
NC
1487 sreloc = _bfd_elf_make_dynamic_reloc_section
1488 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1489
98ceb8ce 1490 if (sreloc == NULL)
30667bf3 1491 {
83bac4b0
NC
1492 bfd_set_error (bfd_error_bad_value);
1493 return FALSE;
30667bf3 1494 }
30667bf3
AM
1495 }
1496
98ceb8ce
AM
1497 /* If this is a global symbol, we count the number of
1498 relocations we need for this symbol. */
875c0872 1499 if (hh != NULL)
30667bf3 1500 {
875c0872 1501 hdh_head = &hh->dyn_relocs;
ec338859
AM
1502 }
1503 else
1504 {
1505 /* Track dynamic relocs needed for local syms too.
1506 We really need local syms available to do this
1507 easily. Oh well. */
875c0872 1508 asection *sr;
6edfbbad 1509 void *vpp;
87d72d41 1510 Elf_Internal_Sym *isym;
6edfbbad 1511
87d72d41
AM
1512 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1513 abfd, r_symndx);
1514 if (isym == NULL)
b34976b6 1515 return FALSE;
30667bf3 1516
87d72d41
AM
1517 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1518 if (sr == NULL)
1519 sr = sec;
1520
6edfbbad 1521 vpp = &elf_section_data (sr)->local_dynrel;
3bf083ed 1522 hdh_head = (struct elf_dyn_relocs **) vpp;
ec338859
AM
1523 }
1524
875c0872
DA
1525 hdh_p = *hdh_head;
1526 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1527 {
a63e02c7 1528 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1529 if (hdh_p == NULL)
b34976b6 1530 return FALSE;
3bf083ed 1531 hdh_p->next = *hdh_head;
875c0872
DA
1532 *hdh_head = hdh_p;
1533 hdh_p->sec = sec;
1534 hdh_p->count = 0;
98ceb8ce 1535#if RELATIVE_DYNRELOCS
3bf083ed 1536 hdh_p->pc_count = 0;
98ceb8ce 1537#endif
ec338859 1538 }
98ceb8ce 1539
875c0872 1540 hdh_p->count += 1;
98ceb8ce 1541#if RELATIVE_DYNRELOCS
ec338859 1542 if (!IS_ABSOLUTE_RELOC (rtype))
3bf083ed 1543 hdh_p->pc_count += 1;
98ceb8ce 1544#endif
30667bf3
AM
1545 }
1546 }
1547 }
edd21aca 1548
b34976b6 1549 return TRUE;
edd21aca
AM
1550}
1551
30667bf3
AM
1552/* Return the section that should be marked against garbage collection
1553 for a given relocation. */
1554
1555static asection *
c39a58e6 1556elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1557 struct bfd_link_info *info,
875c0872
DA
1558 Elf_Internal_Rela *rela,
1559 struct elf_link_hash_entry *hh,
c39a58e6 1560 Elf_Internal_Sym *sym)
30667bf3 1561{
875c0872 1562 if (hh != NULL)
07adf181
AM
1563 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1564 {
1565 case R_PARISC_GNU_VTINHERIT:
1566 case R_PARISC_GNU_VTENTRY:
1567 return NULL;
1568 }
30667bf3 1569
07adf181 1570 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1571}
1572
edfc032f
AM
1573/* Support for core dump NOTE sections. */
1574
1575static bfd_boolean
1576elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1577{
1578 int offset;
1579 size_t size;
1580
1581 switch (note->descsz)
1582 {
1583 default:
1584 return FALSE;
1585
1586 case 396: /* Linux/hppa */
1587 /* pr_cursig */
228e534f 1588 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1589
1590 /* pr_pid */
228e534f 1591 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1592
1593 /* pr_reg */
1594 offset = 72;
1595 size = 320;
1596
1597 break;
1598 }
1599
1600 /* Make a ".reg/999" section. */
1601 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1602 size, note->descpos + offset);
1603}
1604
1605static bfd_boolean
1606elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1607{
1608 switch (note->descsz)
1609 {
1610 default:
1611 return FALSE;
1612
1613 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1614 elf_tdata (abfd)->core->program
edfc032f 1615 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1616 elf_tdata (abfd)->core->command
edfc032f
AM
1617 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1618 }
1619
1620 /* Note that for some reason, a spurious space is tacked
1621 onto the end of the args in some (at least one anyway)
1622 implementations, so strip it off if it exists. */
1623 {
228e534f 1624 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1625 int n = strlen (command);
1626
1627 if (0 < n && command[n - 1] == ' ')
1628 command[n - 1] = '\0';
1629 }
1630
1631 return TRUE;
1632}
1633
74d1c347
AM
1634/* Our own version of hide_symbol, so that we can keep plt entries for
1635 plabels. */
1636
1637static void
c39a58e6 1638elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1639 struct elf_link_hash_entry *eh,
c39a58e6 1640 bfd_boolean force_local)
74d1c347 1641{
e5094212
AM
1642 if (force_local)
1643 {
875c0872
DA
1644 eh->forced_local = 1;
1645 if (eh->dynindx != -1)
e5094212 1646 {
875c0872 1647 eh->dynindx = -1;
e5094212 1648 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1649 eh->dynstr_index);
e5094212 1650 }
31fc8a0b
NC
1651
1652 /* PR 16082: Remove version information from hidden symbol. */
1653 eh->verinfo.verdef = NULL;
1654 eh->verinfo.vertree = NULL;
e5094212
AM
1655 }
1656
4340287b
DA
1657 /* STT_GNU_IFUNC symbol must go through PLT. */
1658 if (! hppa_elf_hash_entry (eh)->plabel
1659 && eh->type != STT_GNU_IFUNC)
74d1c347 1660 {
875c0872 1661 eh->needs_plt = 0;
4340287b 1662 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1663 }
1664}
1665
127e8e9f
AM
1666/* Find any dynamic relocs that apply to read-only sections. */
1667
1668static asection *
1669readonly_dynrelocs (struct elf_link_hash_entry *eh)
1670{
1671 struct elf32_hppa_link_hash_entry *hh;
3bf083ed 1672 struct elf_dyn_relocs *hdh_p;
127e8e9f
AM
1673
1674 hh = hppa_elf_hash_entry (eh);
3bf083ed 1675 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
127e8e9f
AM
1676 {
1677 asection *sec = hdh_p->sec->output_section;
1678
1679 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1680 return hdh_p->sec;
1681 }
1682 return NULL;
1683}
1684
287c7eaf
AM
1685/* Return true if we have dynamic relocs against H or any of its weak
1686 aliases, that apply to read-only sections. Cannot be used after
1687 size_dynamic_sections. */
1688
1689static bfd_boolean
1690alias_readonly_dynrelocs (struct elf_link_hash_entry *eh)
1691{
1692 struct elf32_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1693 do
1694 {
1695 if (readonly_dynrelocs (&hh->eh))
1696 return TRUE;
1697 hh = hppa_elf_hash_entry (hh->eh.u.alias);
1698 } while (hh != NULL && &hh->eh != eh);
1699
1700 return FALSE;
1701}
1702
30667bf3
AM
1703/* Adjust a symbol defined by a dynamic object and referenced by a
1704 regular object. The current definition is in some section of the
1705 dynamic object, but we're not including those sections. We have to
1706 change the definition to something the rest of the link can
1707 understand. */
252b5132 1708
b34976b6 1709static bfd_boolean
c39a58e6 1710elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1711 struct elf_link_hash_entry *eh)
252b5132 1712{
83c81bfe 1713 struct elf32_hppa_link_hash_table *htab;
5474d94f 1714 asection *sec, *srel;
30667bf3
AM
1715
1716 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1717 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1718 if (eh->type == STT_FUNC
1719 || eh->needs_plt)
30667bf3 1720 {
127e8e9f
AM
1721 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh)
1722 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh));
287c7eaf 1723 /* Discard dyn_relocs when non-pic if we've decided that a
529fe20e 1724 function symbol is local. */
287c7eaf
AM
1725 if (!bfd_link_pic (info) && local)
1726 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
127e8e9f 1727
4340287b
DA
1728 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1729 The refcounts are not reliable when it has been hidden since
1730 hide_symbol can be called before the plabel flag is set. */
d336fa6d 1731 if (hppa_elf_hash_entry (eh)->plabel)
4340287b
DA
1732 eh->plt.refcount = 1;
1733
127e8e9f
AM
1734 /* Note that unlike some other backends, the refcount is not
1735 incremented for a non-call (and non-plabel) function reference. */
d336fa6d 1736 else if (eh->plt.refcount <= 0
127e8e9f 1737 || local)
30667bf3
AM
1738 {
1739 /* The .plt entry is not needed when:
1740 a) Garbage collection has removed all references to the
1741 symbol, or
1742 b) We know for certain the symbol is defined in this
74d1c347
AM
1743 object, and it's not a weak definition, nor is the symbol
1744 used by a plabel relocation. Either this object is the
1745 application or we are doing a shared symbolic link. */
875c0872
DA
1746 eh->plt.offset = (bfd_vma) -1;
1747 eh->needs_plt = 0;
30667bf3 1748 }
4dc86686 1749
287c7eaf
AM
1750 /* Unlike other targets, elf32-hppa.c does not define a function
1751 symbol in a non-pic executable on PLT stub code, so we don't
1752 have a local definition in that case. ie. dyn_relocs can't
1753 be discarded. */
1754
127e8e9f 1755 /* Function symbols can't have copy relocs. */
b34976b6 1756 return TRUE;
30667bf3 1757 }
bbd7ec4a 1758 else
875c0872 1759 eh->plt.offset = (bfd_vma) -1;
edd21aca 1760
4a7e5234
AM
1761 htab = hppa_link_hash_table (info);
1762 if (htab == NULL)
1763 return FALSE;
1764
30667bf3
AM
1765 /* If this is a weak symbol, and there is a real definition, the
1766 processor independent code will have arranged for us to see the
1767 real definition first, and we can just use the same value. */
60d67dc8 1768 if (eh->is_weakalias)
edd21aca 1769 {
60d67dc8
AM
1770 struct elf_link_hash_entry *def = weakdef (eh);
1771 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1772 eh->root.u.def.section = def->root.u.def.section;
1773 eh->root.u.def.value = def->root.u.def.value;
4a7e5234
AM
1774 if (def->root.u.def.section == htab->etab.sdynbss
1775 || def->root.u.def.section == htab->etab.sdynrelro)
1776 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
b34976b6 1777 return TRUE;
30667bf3 1778 }
edd21aca 1779
30667bf3
AM
1780 /* This is a reference to a symbol defined by a dynamic object which
1781 is not a function. */
1782
1783 /* If we are creating a shared library, we must presume that the
1784 only references to the symbol are via the global offset table.
1785 For such cases we need not do anything here; the relocations will
1786 be handled correctly by relocate_section. */
0e1862bb 1787 if (bfd_link_pic (info))
b34976b6 1788 return TRUE;
30667bf3
AM
1789
1790 /* If there are no references to this symbol that do not use the
1791 GOT, we don't need to generate a copy reloc. */
875c0872 1792 if (!eh->non_got_ref)
529fe20e 1793 return TRUE;
ebe50bae 1794
127e8e9f
AM
1795 /* If -z nocopyreloc was given, we won't generate them either. */
1796 if (info->nocopyreloc)
529fe20e 1797 return TRUE;
4fc8051d 1798
3bf083ed
AM
1799 /* If we don't find any dynamic relocs in read-only sections, then
1800 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
127e8e9f 1801 if (ELIMINATE_COPY_RELOCS
287c7eaf 1802 && !alias_readonly_dynrelocs (eh))
3bf083ed 1803 return TRUE;
ebe50bae 1804
30667bf3
AM
1805 /* We must allocate the symbol in our .dynbss section, which will
1806 become part of the .bss section of the executable. There will be
1807 an entry for this symbol in the .dynsym section. The dynamic
1808 object will contain position independent code, so all references
1809 from the dynamic object to this symbol will go through the global
1810 offset table. The dynamic linker will use the .dynsym entry to
1811 determine the address it must put in the global offset table, so
1812 both the dynamic object and the regular object will refer to the
1813 same memory location for the variable. */
5474d94f
AM
1814 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1815 {
1816 sec = htab->etab.sdynrelro;
1817 srel = htab->etab.sreldynrelro;
1818 }
1819 else
1820 {
1821 sec = htab->etab.sdynbss;
1822 srel = htab->etab.srelbss;
1823 }
1d7e9d18 1824 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1825 {
4a7e5234
AM
1826 /* We must generate a COPY reloc to tell the dynamic linker to
1827 copy the initial value out of the dynamic object and into the
1828 runtime process image. */
5474d94f 1829 srel->size += sizeof (Elf32_External_Rela);
875c0872 1830 eh->needs_copy = 1;
edd21aca 1831 }
252b5132 1832
529fe20e 1833 /* We no longer want dyn_relocs. */
287c7eaf 1834 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
6cabe1ea 1835 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
252b5132
RH
1836}
1837
46434633 1838/* If EH is undefined, make it dynamic if that makes sense. */
595e0a47
AM
1839
1840static bfd_boolean
46434633
AM
1841ensure_undef_dynamic (struct bfd_link_info *info,
1842 struct elf_link_hash_entry *eh)
595e0a47 1843{
46434633
AM
1844 struct elf_link_hash_table *htab = elf_hash_table (info);
1845
1846 if (htab->dynamic_sections_created
1847 && (eh->root.type == bfd_link_hash_undefweak
1848 || eh->root.type == bfd_link_hash_undefined)
1849 && eh->dynindx == -1
595e0a47
AM
1850 && !eh->forced_local
1851 && eh->type != STT_PARISC_MILLI
60c1b909 1852 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)
595e0a47
AM
1853 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1854 return bfd_elf_link_record_dynamic_symbol (info, eh);
1855 return TRUE;
1856}
1857
e5ee5df1 1858/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1859 ie. plabel entries. */
a8d02d66 1860
b34976b6 1861static bfd_boolean
875c0872 1862allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1863{
1864 struct bfd_link_info *info;
1865 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1866 struct elf32_hppa_link_hash_entry *hh;
1867 asection *sec;
a8d02d66 1868
875c0872 1869 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1870 return TRUE;
a8d02d66 1871
875c0872 1872 info = (struct bfd_link_info *) inf;
9b52905e 1873 hh = hppa_elf_hash_entry (eh);
a8d02d66 1874 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1875 if (htab == NULL)
1876 return FALSE;
1877
a63e02c7 1878 if (htab->etab.dynamic_sections_created
875c0872 1879 && eh->plt.refcount > 0)
e5ee5df1 1880 {
46434633 1881 if (!ensure_undef_dynamic (info, eh))
595e0a47 1882 return FALSE;
e5ee5df1 1883
0e1862bb 1884 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
e5ee5df1 1885 {
067fa4a6
AM
1886 /* Allocate these later. From this point on, h->plabel
1887 means that the plt entry is only used by a plabel.
1888 We'll be using a normal plt entry for this symbol, so
1889 clear the plabel indicator. */
68ffbac6 1890
875c0872 1891 hh->plabel = 0;
e5ee5df1 1892 }
875c0872 1893 else if (hh->plabel)
e5ee5df1
AM
1894 {
1895 /* Make an entry in the .plt section for plabel references
1896 that won't have a .plt entry for other reasons. */
ce558b89 1897 sec = htab->etab.splt;
875c0872
DA
1898 eh->plt.offset = sec->size;
1899 sec->size += PLT_ENTRY_SIZE;
247d6c4c
AM
1900 if (bfd_link_pic (info))
1901 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
a8d02d66
AM
1902 }
1903 else
e5ee5df1
AM
1904 {
1905 /* No .plt entry needed. */
875c0872
DA
1906 eh->plt.offset = (bfd_vma) -1;
1907 eh->needs_plt = 0;
e5ee5df1
AM
1908 }
1909 }
1910 else
1911 {
875c0872
DA
1912 eh->plt.offset = (bfd_vma) -1;
1913 eh->needs_plt = 0;
a8d02d66
AM
1914 }
1915
b34976b6 1916 return TRUE;
a8d02d66
AM
1917}
1918
2e684e75
AM
1919/* Calculate size of GOT entries for symbol given its TLS_TYPE. */
1920
1921static inline unsigned int
1922got_entries_needed (int tls_type)
1923{
1924 unsigned int need = 0;
1925
1926 if ((tls_type & GOT_NORMAL) != 0)
1927 need += GOT_ENTRY_SIZE;
1928 if ((tls_type & GOT_TLS_GD) != 0)
1929 need += GOT_ENTRY_SIZE * 2;
1930 if ((tls_type & GOT_TLS_IE) != 0)
1931 need += GOT_ENTRY_SIZE;
1932 return need;
1933}
1934
1935/* Calculate size of relocs needed for symbol given its TLS_TYPE and
4352556b
AM
1936 NEEDed GOT entries. TPREL_KNOWN says a TPREL offset can be
1937 calculated at link time. DTPREL_KNOWN says the same for a DTPREL
1938 offset. */
2e684e75
AM
1939
1940static inline unsigned int
4352556b
AM
1941got_relocs_needed (int tls_type, unsigned int need,
1942 bfd_boolean dtprel_known, bfd_boolean tprel_known)
2e684e75
AM
1943{
1944 /* All the entries we allocated need relocs.
4352556b
AM
1945 Except for GD and IE with local symbols. */
1946 if ((tls_type & GOT_TLS_GD) != 0 && dtprel_known)
1947 need -= GOT_ENTRY_SIZE;
1948 if ((tls_type & GOT_TLS_IE) != 0 && tprel_known)
2e684e75
AM
1949 need -= GOT_ENTRY_SIZE;
1950 return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE;
1951}
1952
4dc86686
AM
1953/* Allocate space in .plt, .got and associated reloc sections for
1954 global syms. */
1955
b34976b6 1956static bfd_boolean
875c0872 1957allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1958{
1959 struct bfd_link_info *info;
83c81bfe 1960 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1961 asection *sec;
1962 struct elf32_hppa_link_hash_entry *hh;
3bf083ed 1963 struct elf_dyn_relocs *hdh_p;
4dc86686 1964
875c0872 1965 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1966 return TRUE;
73a74a62 1967
c39a58e6 1968 info = inf;
83c81bfe 1969 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1970 if (htab == NULL)
1971 return FALSE;
1972
875c0872 1973 hh = hppa_elf_hash_entry (eh);
68ffbac6 1974
a63e02c7 1975 if (htab->etab.dynamic_sections_created
875c0872
DA
1976 && eh->plt.offset != (bfd_vma) -1
1977 && !hh->plabel
1978 && eh->plt.refcount > 0)
4dc86686 1979 {
e5ee5df1 1980 /* Make an entry in the .plt section. */
ce558b89 1981 sec = htab->etab.splt;
875c0872
DA
1982 eh->plt.offset = sec->size;
1983 sec->size += PLT_ENTRY_SIZE;
3ac8354b 1984
e5ee5df1 1985 /* We also need to make an entry in the .rela.plt section. */
ce558b89 1986 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 1987 htab->need_plt_stub = 1;
4dc86686 1988 }
edd21aca 1989
875c0872 1990 if (eh->got.refcount > 0)
4dc86686 1991 {
2e684e75
AM
1992 unsigned int need;
1993
46434633 1994 if (!ensure_undef_dynamic (info, eh))
595e0a47 1995 return FALSE;
446f2863 1996
ce558b89 1997 sec = htab->etab.sgot;
875c0872 1998 eh->got.offset = sec->size;
2e684e75
AM
1999 need = got_entries_needed (hh->tls_type);
2000 sec->size += need;
a63e02c7 2001 if (htab->etab.dynamic_sections_created
4352556b
AM
2002 && (bfd_link_dll (info)
2003 || (bfd_link_pic (info) && (hh->tls_type & GOT_NORMAL) != 0)
875c0872 2004 || (eh->dynindx != -1
d336fa6d
AM
2005 && !SYMBOL_REFERENCES_LOCAL (info, eh)))
2006 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
ce757d15 2007 {
4352556b 2008 bfd_boolean local = SYMBOL_REFERENCES_LOCAL (info, eh);
2e684e75 2009 htab->etab.srelgot->size
4352556b
AM
2010 += got_relocs_needed (hh->tls_type, need, local,
2011 local && bfd_link_executable (info));
ce757d15 2012 }
4dc86686
AM
2013 }
2014 else
875c0872 2015 eh->got.offset = (bfd_vma) -1;
30667bf3 2016
d336fa6d
AM
2017 /* If no dynamic sections we can't have dynamic relocs. */
2018 if (!htab->etab.dynamic_sections_created)
2019 hh->dyn_relocs = NULL;
2020
529fe20e
AM
2021 /* Discard relocs on undefined syms with non-default visibility. */
2022 else if ((eh->root.type == bfd_link_hash_undefined
2023 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2024 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
2025 hh->dyn_relocs = NULL;
2026
875c0872 2027 if (hh->dyn_relocs == NULL)
287c7eaf 2028 return TRUE;
30667bf3 2029
98ceb8ce
AM
2030 /* If this is a -Bsymbolic shared link, then we need to discard all
2031 space allocated for dynamic pc-relative relocs against symbols
2032 defined in a regular object. For the normal shared case, discard
2033 space for relocs that have become local due to symbol visibility
2034 changes. */
0e1862bb 2035 if (bfd_link_pic (info))
446f2863 2036 {
98ceb8ce 2037#if RELATIVE_DYNRELOCS
529fe20e 2038 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2039 {
3bf083ed 2040 struct elf_dyn_relocs **hdh_pp;
30667bf3 2041
875c0872 2042 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2043 {
3bf083ed
AM
2044 hdh_p->count -= hdh_p->pc_count;
2045 hdh_p->pc_count = 0;
875c0872 2046 if (hdh_p->count == 0)
3bf083ed 2047 *hdh_pp = hdh_p->next;
98ceb8ce 2048 else
3bf083ed 2049 hdh_pp = &hdh_p->next;
98ceb8ce
AM
2050 }
2051 }
2052#endif
4fc8051d 2053
46434633 2054 if (hh->dyn_relocs != NULL)
22d606e9 2055 {
46434633 2056 if (!ensure_undef_dynamic (info, eh))
595e0a47 2057 return FALSE;
22d606e9 2058 }
446f2863 2059 }
d336fa6d 2060 else if (ELIMINATE_COPY_RELOCS)
30667bf3 2061 {
98ceb8ce
AM
2062 /* For the non-shared case, discard space for relocs against
2063 symbols which turn out to need copy relocs or are not
2064 dynamic. */
68ffbac6 2065
529fe20e 2066 if (eh->dynamic_adjusted
529fe20e
AM
2067 && !eh->def_regular
2068 && !ELF_COMMON_DEF_P (eh))
98ceb8ce 2069 {
46434633 2070 if (!ensure_undef_dynamic (info, eh))
595e0a47 2071 return FALSE;
98ceb8ce 2072
46434633 2073 if (eh->dynindx == -1)
287c7eaf 2074 hh->dyn_relocs = NULL;
98ceb8ce 2075 }
46434633 2076 else
287c7eaf 2077 hh->dyn_relocs = NULL;
30667bf3 2078 }
30667bf3 2079
98ceb8ce 2080 /* Finally, allocate space. */
3bf083ed 2081 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
30667bf3 2082 {
875c0872
DA
2083 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2084 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2085 }
30667bf3 2086
b34976b6 2087 return TRUE;
30667bf3 2088}
30667bf3 2089
d5c73c2f
AM
2090/* This function is called via elf_link_hash_traverse to force
2091 millicode symbols local so they do not end up as globals in the
2092 dynamic symbol table. We ought to be able to do this in
2093 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2094 for all dynamic symbols. Arguably, this is a bug in
2095 elf_adjust_dynamic_symbol. */
2096
b34976b6 2097static bfd_boolean
875c0872 2098clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2099 struct bfd_link_info *info)
d5c73c2f 2100{
875c0872
DA
2101 if (eh->type == STT_PARISC_MILLI
2102 && !eh->forced_local)
e0522e89 2103 {
875c0872 2104 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2105 }
b34976b6 2106 return TRUE;
d5c73c2f
AM
2107}
2108
127e8e9f
AM
2109/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2110 read-only sections. */
98ceb8ce 2111
b34976b6 2112static bfd_boolean
127e8e9f 2113maybe_set_textrel (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2114{
127e8e9f 2115 asection *sec;
98ceb8ce 2116
127e8e9f
AM
2117 if (eh->root.type == bfd_link_hash_indirect)
2118 return TRUE;
98ceb8ce 2119
127e8e9f
AM
2120 sec = readonly_dynrelocs (eh);
2121 if (sec != NULL)
2122 {
2123 struct bfd_link_info *info = (struct bfd_link_info *) inf;
98ceb8ce 2124
127e8e9f
AM
2125 info->flags |= DF_TEXTREL;
2126 info->callbacks->minfo
c1c8c1ef 2127 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 2128 sec->owner, eh->root.root.string, sec);
98ceb8ce 2129
127e8e9f
AM
2130 /* Not an error, just cut short the traversal. */
2131 return FALSE;
98ceb8ce 2132 }
b34976b6 2133 return TRUE;
98ceb8ce
AM
2134}
2135
30667bf3
AM
2136/* Set the sizes of the dynamic sections. */
2137
b34976b6 2138static bfd_boolean
c39a58e6
AM
2139elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2140 struct bfd_link_info *info)
30667bf3 2141{
83c81bfe 2142 struct elf32_hppa_link_hash_table *htab;
30667bf3 2143 bfd *dynobj;
98ceb8ce 2144 bfd *ibfd;
875c0872 2145 asection *sec;
b34976b6 2146 bfd_boolean relocs;
30667bf3 2147
83c81bfe 2148 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2149 if (htab == NULL)
2150 return FALSE;
2151
a63e02c7 2152 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2153 if (dynobj == NULL)
2154 abort ();
30667bf3 2155
a63e02c7 2156 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2157 {
2158 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2159 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2160 {
3d4d4302 2161 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2162 if (sec == NULL)
49e9d0d3 2163 abort ();
875c0872
DA
2164 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2165 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2166 }
74d1c347 2167
d5c73c2f 2168 /* Force millicode symbols local. */
a63e02c7 2169 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2170 clobber_millicode_symbols,
2171 info);
68fb2e56 2172 }
d5c73c2f 2173
98ceb8ce
AM
2174 /* Set up .got and .plt offsets for local syms, and space for local
2175 dynamic relocs. */
c72f2fb2 2176 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2177 {
2178 bfd_signed_vma *local_got;
2179 bfd_signed_vma *end_local_got;
2180 bfd_signed_vma *local_plt;
2181 bfd_signed_vma *end_local_plt;
2182 bfd_size_type locsymcount;
2183 Elf_Internal_Shdr *symtab_hdr;
2184 asection *srel;
9b52905e 2185 char *local_tls_type;
74d1c347 2186
98ceb8ce 2187 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2188 continue;
4dc86686 2189
875c0872 2190 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2191 {
3bf083ed 2192 struct elf_dyn_relocs *hdh_p;
98ceb8ce 2193
3bf083ed 2194 for (hdh_p = ((struct elf_dyn_relocs *)
875c0872
DA
2195 elf_section_data (sec)->local_dynrel);
2196 hdh_p != NULL;
3bf083ed 2197 hdh_p = hdh_p->next)
98ceb8ce 2198 {
875c0872
DA
2199 if (!bfd_is_abs_section (hdh_p->sec)
2200 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2201 {
2202 /* Input section has been discarded, either because
2203 it is a copy of a linkonce section or due to
2204 linker script /DISCARD/, so we'll be discarding
2205 the relocs too. */
2206 }
875c0872 2207 else if (hdh_p->count != 0)
ec338859 2208 {
875c0872
DA
2209 srel = elf_section_data (hdh_p->sec)->sreloc;
2210 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2211 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2212 info->flags |= DF_TEXTREL;
ec338859 2213 }
98ceb8ce
AM
2214 }
2215 }
2216
2217 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2218 if (!local_got)
2219 continue;
74d1c347 2220
98ceb8ce 2221 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2222 locsymcount = symtab_hdr->sh_info;
2223 end_local_got = local_got + locsymcount;
9b52905e 2224 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
ce558b89
AM
2225 sec = htab->etab.sgot;
2226 srel = htab->etab.srelgot;
68fb2e56
AM
2227 for (; local_got < end_local_got; ++local_got)
2228 {
2229 if (*local_got > 0)
4dc86686 2230 {
2e684e75
AM
2231 unsigned int need;
2232
875c0872 2233 *local_got = sec->size;
2e684e75
AM
2234 need = got_entries_needed (*local_tls_type);
2235 sec->size += need;
4352556b
AM
2236 if (bfd_link_dll (info)
2237 || (bfd_link_pic (info)
2238 && (*local_tls_type & GOT_NORMAL) != 0))
2239 htab->etab.srelgot->size
2240 += got_relocs_needed (*local_tls_type, need, TRUE,
2241 bfd_link_executable (info));
4dc86686 2242 }
68fb2e56
AM
2243 else
2244 *local_got = (bfd_vma) -1;
9b52905e
NC
2245
2246 ++local_tls_type;
68fb2e56 2247 }
74d1c347 2248
68fb2e56
AM
2249 local_plt = end_local_got;
2250 end_local_plt = local_plt + locsymcount;
a63e02c7 2251 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2252 {
2253 /* Won't be used, but be safe. */
2254 for (; local_plt < end_local_plt; ++local_plt)
2255 *local_plt = (bfd_vma) -1;
2256 }
2257 else
2258 {
ce558b89
AM
2259 sec = htab->etab.splt;
2260 srel = htab->etab.srelplt;
74d1c347
AM
2261 for (; local_plt < end_local_plt; ++local_plt)
2262 {
2263 if (*local_plt > 0)
2264 {
875c0872
DA
2265 *local_plt = sec->size;
2266 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2267 if (bfd_link_pic (info))
eea6121a 2268 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2269 }
2270 else
2271 *local_plt = (bfd_vma) -1;
2272 }
2273 }
30667bf3 2274 }
68ffbac6 2275
9b52905e
NC
2276 if (htab->tls_ldm_got.refcount > 0)
2277 {
68ffbac6 2278 /* Allocate 2 got entries and 1 dynamic reloc for
07d6d2b8 2279 R_PARISC_TLS_DTPMOD32 relocs. */
ce558b89
AM
2280 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2281 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2282 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2283 }
2284 else
2285 htab->tls_ldm_got.offset = -1;
30667bf3 2286
e5ee5df1
AM
2287 /* Do all the .plt entries without relocs first. The dynamic linker
2288 uses the last .plt reloc to find the end of the .plt (and hence
2289 the start of the .got) for lazy linking. */
a63e02c7 2290 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2291
98ceb8ce
AM
2292 /* Allocate global sym .plt and .got entries, and space for global
2293 sym dynamic relocs. */
a63e02c7 2294 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2295
2296 /* The check_relocs and adjust_dynamic_symbol entry points have
2297 determined the sizes of the various dynamic sections. Allocate
2298 memory for them. */
b34976b6 2299 relocs = FALSE;
875c0872 2300 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2301 {
875c0872 2302 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2303 continue;
2304
ce558b89 2305 if (sec == htab->etab.splt)
68fb2e56 2306 {
83c81bfe 2307 if (htab->need_plt_stub)
68fb2e56
AM
2308 {
2309 /* Make space for the plt stub at the end of the .plt
2310 section. We want this stub right at the end, up
2311 against the .got section. */
fd361982
AM
2312 int gotalign = bfd_section_alignment (htab->etab.sgot);
2313 int pltalign = bfd_section_alignment (sec);
2c9e9550 2314 int align = gotalign > 3 ? gotalign : 3;
68fb2e56 2315 bfd_size_type mask;
30667bf3 2316
2c9e9550
JDA
2317 if (align > pltalign)
2318 bfd_set_section_alignment (sec, align);
68fb2e56 2319 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2320 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2321 }
2322 }
ce558b89 2323 else if (sec == htab->etab.sgot
5474d94f
AM
2324 || sec == htab->etab.sdynbss
2325 || sec == htab->etab.sdynrelro)
68fb2e56 2326 ;
fd361982 2327 else if (CONST_STRNEQ (bfd_section_name (sec), ".rela"))
30667bf3 2328 {
875c0872 2329 if (sec->size != 0)
30667bf3 2330 {
4e12ff7f
AM
2331 /* Remember whether there are any reloc sections other
2332 than .rela.plt. */
ce558b89 2333 if (sec != htab->etab.srelplt)
b34976b6 2334 relocs = TRUE;
47d89dba 2335
30667bf3
AM
2336 /* We use the reloc_count field as a counter if we need
2337 to copy relocs into the output file. */
875c0872 2338 sec->reloc_count = 0;
30667bf3
AM
2339 }
2340 }
30667bf3
AM
2341 else
2342 {
2343 /* It's not one of our sections, so don't allocate space. */
2344 continue;
2345 }
2346
875c0872 2347 if (sec->size == 0)
30667bf3
AM
2348 {
2349 /* If we don't need this section, strip it from the
2350 output file. This is mostly to handle .rela.bss and
2351 .rela.plt. We must create both sections in
2352 create_dynamic_sections, because they must be created
2353 before the linker maps input sections to output
2354 sections. The linker does that before
2355 adjust_dynamic_symbol is called, and it is that
2356 function which decides whether anything needs to go
2357 into these sections. */
875c0872 2358 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2359 continue;
2360 }
2361
c456f082
AM
2362 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2363 continue;
2364
30667bf3
AM
2365 /* Allocate memory for the section contents. Zero it, because
2366 we may not fill in all the reloc sections. */
875c0872 2367 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2368 if (sec->contents == NULL)
b34976b6 2369 return FALSE;
30667bf3
AM
2370 }
2371
a63e02c7 2372 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2373 {
2374 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2375 actually has nothing to do with the PLT, it is how we
2376 communicate the LTP value of a load module to the dynamic
2377 linker. */
dc810e39 2378#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2379 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2380
2381 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2382 return FALSE;
30667bf3
AM
2383
2384 /* Add some entries to the .dynamic section. We fill in the
2385 values later, in elf32_hppa_finish_dynamic_sections, but we
2386 must add the entries now so that we get the correct size for
2387 the .dynamic section. The DT_DEBUG entry is filled in by the
2388 dynamic linker and used by the debugger. */
0e1862bb 2389 if (bfd_link_executable (info))
30667bf3 2390 {
dc810e39 2391 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2392 return FALSE;
30667bf3
AM
2393 }
2394
ce558b89 2395 if (htab->etab.srelplt->size != 0)
30667bf3 2396 {
dc810e39
AM
2397 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2398 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2399 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2400 return FALSE;
30667bf3
AM
2401 }
2402
2403 if (relocs)
2404 {
dc810e39
AM
2405 if (!add_dynamic_entry (DT_RELA, 0)
2406 || !add_dynamic_entry (DT_RELASZ, 0)
2407 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2408 return FALSE;
30667bf3 2409
98ceb8ce
AM
2410 /* If any dynamic relocs apply to a read-only section,
2411 then we need a DT_TEXTREL entry. */
248866a8 2412 if ((info->flags & DF_TEXTREL) == 0)
127e8e9f 2413 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
98ceb8ce
AM
2414
2415 if ((info->flags & DF_TEXTREL) != 0)
2416 {
2417 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2418 return FALSE;
98ceb8ce 2419 }
30667bf3
AM
2420 }
2421 }
dc810e39 2422#undef add_dynamic_entry
30667bf3 2423
b34976b6 2424 return TRUE;
30667bf3
AM
2425}
2426
30667bf3
AM
2427/* External entry points for sizing and building linker stubs. */
2428
b4655ea9
AM
2429/* Set up various things so that we can make a list of input sections
2430 for each output section included in the link. Returns -1 on error,
cedb70c5 2431 0 when no stubs will be needed, and 1 on success. */
30667bf3 2432
b4655ea9 2433int
c39a58e6 2434elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2435{
2436 bfd *input_bfd;
b4655ea9 2437 unsigned int bfd_count;
7292b3ac 2438 unsigned int top_id, top_index;
30667bf3 2439 asection *section;
25f72752 2440 asection **input_list, **list;
986f0783 2441 size_t amt;
b4655ea9 2442 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2443
4dfe6ac6
NC
2444 if (htab == NULL)
2445 return -1;
2446
1badb539
AM
2447 /* Count the number of input BFDs and find the top input section id. */
2448 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2449 input_bfd != NULL;
c72f2fb2 2450 input_bfd = input_bfd->link.next)
30667bf3
AM
2451 {
2452 bfd_count += 1;
25f72752
AM
2453 for (section = input_bfd->sections;
2454 section != NULL;
2455 section = section->next)
2456 {
2457 if (top_id < section->id)
2458 top_id = section->id;
2459 }
30667bf3 2460 }
b4655ea9 2461 htab->bfd_count = bfd_count;
30667bf3 2462
dc810e39 2463 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2464 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2465 if (htab->stub_group == NULL)
b4655ea9 2466 return -1;
1badb539 2467
b4655ea9 2468 /* We can't use output_bfd->section_count here to find the top output
1badb539 2469 section index as some sections may have been removed, and
8423293d 2470 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2471 for (section = output_bfd->sections, top_index = 0;
2472 section != NULL;
2473 section = section->next)
2474 {
2475 if (top_index < section->index)
2476 top_index = section->index;
2477 }
2478
b4655ea9 2479 htab->top_index = top_index;
dc810e39 2480 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2481 input_list = bfd_malloc (amt);
b4655ea9 2482 htab->input_list = input_list;
25f72752 2483 if (input_list == NULL)
b4655ea9 2484 return -1;
25f72752 2485
1badb539
AM
2486 /* For sections we aren't interested in, mark their entries with a
2487 value we can check later. */
2488 list = input_list + top_index;
2489 do
2490 *list = bfd_abs_section_ptr;
2491 while (list-- != input_list);
2492
2493 for (section = output_bfd->sections;
2494 section != NULL;
2495 section = section->next)
2496 {
47d89dba 2497 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2498 input_list[section->index] = NULL;
2499 }
2500
b4655ea9
AM
2501 return 1;
2502}
2503
2504/* The linker repeatedly calls this function for each input section,
2505 in the order that input sections are linked into output sections.
2506 Build lists of input sections to determine groupings between which
2507 we may insert linker stubs. */
2508
2509void
c39a58e6 2510elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2511{
2512 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2513
4dfe6ac6
NC
2514 if (htab == NULL)
2515 return;
2516
b4655ea9 2517 if (isec->output_section->index <= htab->top_index)
25f72752 2518 {
b4655ea9
AM
2519 asection **list = htab->input_list + isec->output_section->index;
2520 if (*list != bfd_abs_section_ptr)
25f72752 2521 {
b4655ea9 2522 /* Steal the link_sec pointer for our list. */
83c81bfe 2523#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2524 /* This happens to make the list in reverse order,
2525 which is what we want. */
2526 PREV_SEC (isec) = *list;
2527 *list = isec;
25f72752
AM
2528 }
2529 }
b4655ea9 2530}
25f72752 2531
b4655ea9
AM
2532/* See whether we can group stub sections together. Grouping stub
2533 sections may result in fewer stubs. More importantly, we need to
2534 put all .init* and .fini* stubs at the beginning of the .init or
2535 .fini output sections respectively, because glibc splits the
2536 _init and _fini functions into multiple parts. Putting a stub in
2537 the middle of a function is not a good idea. */
2538
2539static void
c39a58e6
AM
2540group_sections (struct elf32_hppa_link_hash_table *htab,
2541 bfd_size_type stub_group_size,
2542 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2543{
2544 asection **list = htab->input_list + htab->top_index;
1badb539 2545 do
25f72752
AM
2546 {
2547 asection *tail = *list;
1badb539
AM
2548 if (tail == bfd_abs_section_ptr)
2549 continue;
25f72752
AM
2550 while (tail != NULL)
2551 {
2552 asection *curr;
2553 asection *prev;
2554 bfd_size_type total;
00b28bb0 2555 bfd_boolean big_sec;
25f72752
AM
2556
2557 curr = tail;
eea6121a 2558 total = tail->size;
00b28bb0
AM
2559 big_sec = total >= stub_group_size;
2560
25f72752
AM
2561 while ((prev = PREV_SEC (curr)) != NULL
2562 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2563 < stub_group_size))
25f72752
AM
2564 curr = prev;
2565
2566 /* OK, the size from the start of CURR to the end is less
a248e267 2567 than 240000 bytes and thus can be handled by one stub
25f72752 2568 section. (or the tail section is itself larger than
a248e267 2569 240000 bytes, in which case we may be toast.)
25f72752
AM
2570 We should really be keeping track of the total size of
2571 stubs added here, as stubs contribute to the final output
2572 section size. That's a little tricky, and this way will
a248e267
AM
2573 only break if stubs added total more than 22144 bytes, or
2574 2768 long branch stubs. It seems unlikely for more than
2575 2768 different functions to be called, especially from
2576 code only 240000 bytes long. This limit used to be
2577 250000, but c++ code tends to generate lots of little
2578 functions, and sometimes violated the assumption. */
25f72752
AM
2579 do
2580 {
2581 prev = PREV_SEC (tail);
2582 /* Set up this stub group. */
83c81bfe 2583 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2584 }
2585 while (tail != curr && (tail = prev) != NULL);
2586
a248e267 2587 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2588 bytes before the stub section can be handled by it too.
2589 Don't do this if we have a really large section after the
2590 stubs, as adding more stubs increases the chance that
2591 branches may not reach into the stub section. */
2592 if (!stubs_always_before_branch && !big_sec)
25f72752 2593 {
47d89dba
AM
2594 total = 0;
2595 while (prev != NULL
2596 && ((total += tail->output_offset - prev->output_offset)
2597 < stub_group_size))
2598 {
2599 tail = prev;
2600 prev = PREV_SEC (tail);
83c81bfe 2601 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2602 }
25f72752
AM
2603 }
2604 tail = prev;
2605 }
2606 }
b4655ea9
AM
2607 while (list-- != htab->input_list);
2608 free (htab->input_list);
1badb539 2609#undef PREV_SEC
b4655ea9
AM
2610}
2611
2612/* Read in all local syms for all input bfds, and create hash entries
2613 for export stubs if we are building a multi-subspace shared lib.
2614 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2615
2616static int
c39a58e6 2617get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2618{
2619 unsigned int bfd_indx;
2620 Elf_Internal_Sym *local_syms, **all_local_syms;
2621 int stub_changed = 0;
2622 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2623
4dfe6ac6
NC
2624 if (htab == NULL)
2625 return -1;
2626
30667bf3
AM
2627 /* We want to read in symbol extension records only once. To do this
2628 we need to read in the local symbols in parallel and save them for
2629 later use; so hold pointers to the local symbols in an array. */
986f0783 2630 size_t amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2631 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2632 htab->all_local_syms = all_local_syms;
30667bf3 2633 if (all_local_syms == NULL)
b4655ea9 2634 return -1;
30667bf3
AM
2635
2636 /* Walk over all the input BFDs, swapping in local symbols.
2637 If we are creating a shared library, create hash entries for the
2638 export stubs. */
b4655ea9 2639 for (bfd_indx = 0;
30667bf3 2640 input_bfd != NULL;
c72f2fb2 2641 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2642 {
2643 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2644
252b5132
RH
2645 /* We'll need the symbol table in a second. */
2646 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2647 if (symtab_hdr->sh_info == 0)
2648 continue;
2649
6cdc0ccc
AM
2650 /* We need an array of the local symbols attached to the input bfd. */
2651 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2652 if (local_syms == NULL)
edd21aca 2653 {
6cdc0ccc
AM
2654 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2655 symtab_hdr->sh_info, 0,
2656 NULL, NULL, NULL);
2657 /* Cache them for elf_link_input_bfd. */
2658 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2659 }
6cdc0ccc
AM
2660 if (local_syms == NULL)
2661 return -1;
edd21aca 2662
6cdc0ccc 2663 all_local_syms[bfd_indx] = local_syms;
edd21aca 2664
0e1862bb 2665 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2666 {
875c0872
DA
2667 struct elf_link_hash_entry **eh_syms;
2668 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2669 unsigned int symcount;
2670
2671 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2672 - symtab_hdr->sh_info);
875c0872
DA
2673 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2674 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2675
2676 /* Look through the global syms for functions; We need to
2677 build export stubs for all globally visible functions. */
875c0872 2678 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2679 {
875c0872 2680 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2681
875c0872 2682 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2683
a63e02c7
DA
2684 while (hh->eh.root.type == bfd_link_hash_indirect
2685 || hh->eh.root.type == bfd_link_hash_warning)
2686 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2687
2688 /* At this point in the link, undefined syms have been
2689 resolved, so we need to check that the symbol was
2690 defined in this BFD. */
a63e02c7
DA
2691 if ((hh->eh.root.type == bfd_link_hash_defined
2692 || hh->eh.root.type == bfd_link_hash_defweak)
2693 && hh->eh.type == STT_FUNC
2694 && hh->eh.root.u.def.section->output_section != NULL
2695 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2696 == output_bfd)
a63e02c7
DA
2697 && hh->eh.root.u.def.section->owner == input_bfd
2698 && hh->eh.def_regular
2699 && !hh->eh.forced_local
2700 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2701 {
2702 asection *sec;
2703 const char *stub_name;
875c0872 2704 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2705
a63e02c7 2706 sec = hh->eh.root.u.def.section;
9b52905e 2707 stub_name = hh_name (hh);
a63e02c7 2708 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2709 stub_name,
b34976b6 2710 FALSE, FALSE);
875c0872 2711 if (hsh == NULL)
30667bf3 2712 {
875c0872
DA
2713 hsh = hppa_add_stub (stub_name, sec, htab);
2714 if (!hsh)
b4655ea9 2715 return -1;
30667bf3 2716
a63e02c7
DA
2717 hsh->target_value = hh->eh.root.u.def.value;
2718 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2719 hsh->stub_type = hppa_stub_export;
a63e02c7 2720 hsh->hh = hh;
30667bf3
AM
2721 stub_changed = 1;
2722 }
2723 else
2724 {
695344c0 2725 /* xgettext:c-format */
871b3ab2 2726 _bfd_error_handler (_("%pB: duplicate export stub %s"),
4eca0228 2727 input_bfd, stub_name);
30667bf3
AM
2728 }
2729 }
2730 }
30667bf3
AM
2731 }
2732 }
edd21aca 2733
b4655ea9
AM
2734 return stub_changed;
2735}
2736
2737/* Determine and set the size of the stub section for a final link.
2738
2739 The basic idea here is to examine all the relocations looking for
2740 PC-relative calls to a target that is unreachable with a "bl"
2741 instruction. */
2742
b34976b6 2743bfd_boolean
c39a58e6
AM
2744elf32_hppa_size_stubs
2745 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2746 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2747 asection * (*add_stub_section) (const char *, asection *),
2748 void (*layout_sections_again) (void))
b4655ea9
AM
2749{
2750 bfd_size_type stub_group_size;
b34976b6
AM
2751 bfd_boolean stubs_always_before_branch;
2752 bfd_boolean stub_changed;
b4655ea9
AM
2753 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2754
4dfe6ac6
NC
2755 if (htab == NULL)
2756 return FALSE;
2757
b4655ea9
AM
2758 /* Stash our params away. */
2759 htab->stub_bfd = stub_bfd;
2760 htab->multi_subspace = multi_subspace;
2761 htab->add_stub_section = add_stub_section;
2762 htab->layout_sections_again = layout_sections_again;
2763 stubs_always_before_branch = group_size < 0;
2764 if (group_size < 0)
2765 stub_group_size = -group_size;
2766 else
2767 stub_group_size = group_size;
2768 if (stub_group_size == 1)
2769 {
2770 /* Default values. */
acc990f2
AM
2771 if (stubs_always_before_branch)
2772 {
2773 stub_group_size = 7680000;
2774 if (htab->has_17bit_branch || htab->multi_subspace)
2775 stub_group_size = 240000;
2776 if (htab->has_12bit_branch)
2777 stub_group_size = 7500;
2778 }
2779 else
2780 {
2781 stub_group_size = 6971392;
2782 if (htab->has_17bit_branch || htab->multi_subspace)
2783 stub_group_size = 217856;
2784 if (htab->has_12bit_branch)
2785 stub_group_size = 6808;
2786 }
b4655ea9
AM
2787 }
2788
2789 group_sections (htab, stub_group_size, stubs_always_before_branch);
2790
2791 switch (get_local_syms (output_bfd, info->input_bfds, info))
2792 {
2793 default:
2794 if (htab->all_local_syms)
2795 goto error_ret_free_local;
b34976b6 2796 return FALSE;
b4655ea9
AM
2797
2798 case 0:
b34976b6 2799 stub_changed = FALSE;
b4655ea9
AM
2800 break;
2801
2802 case 1:
b34976b6 2803 stub_changed = TRUE;
b4655ea9
AM
2804 break;
2805 }
2806
edd21aca
AM
2807 while (1)
2808 {
b4655ea9
AM
2809 bfd *input_bfd;
2810 unsigned int bfd_indx;
30667bf3
AM
2811 asection *stub_sec;
2812
25f72752 2813 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2814 input_bfd != NULL;
c72f2fb2 2815 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2816 {
2817 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2818 asection *section;
2819 Elf_Internal_Sym *local_syms;
30667bf3
AM
2820
2821 /* We'll need the symbol table in a second. */
2822 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2823 if (symtab_hdr->sh_info == 0)
2824 continue;
2825
b4655ea9 2826 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2827
2828 /* Walk over each section attached to the input bfd. */
2829 for (section = input_bfd->sections;
2830 section != NULL;
25f72752 2831 section = section->next)
30667bf3 2832 {
30667bf3
AM
2833 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2834
2835 /* If there aren't any relocs, then there's nothing more
2836 to do. */
2837 if ((section->flags & SEC_RELOC) == 0
215f5271
AM
2838 || (section->flags & SEC_ALLOC) == 0
2839 || (section->flags & SEC_LOAD) == 0
2840 || (section->flags & SEC_CODE) == 0
30667bf3
AM
2841 || section->reloc_count == 0)
2842 continue;
2843
25f72752
AM
2844 /* If this section is a link-once section that will be
2845 discarded, then don't create any stubs. */
2846 if (section->output_section == NULL
2847 || section->output_section->owner != output_bfd)
2848 continue;
2849
1e2f5b6e
AM
2850 /* Get the relocs. */
2851 internal_relocs
c39a58e6 2852 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2853 info->keep_memory);
30667bf3 2854 if (internal_relocs == NULL)
1e2f5b6e 2855 goto error_ret_free_local;
30667bf3
AM
2856
2857 /* Now examine each relocation. */
2858 irela = internal_relocs;
2859 irelaend = irela + section->reloc_count;
2860 for (; irela < irelaend; irela++)
2861 {
2862 unsigned int r_type, r_indx;
2863 enum elf32_hppa_stub_type stub_type;
875c0872 2864 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2865 asection *sym_sec;
2866 bfd_vma sym_value;
2867 bfd_vma destination;
875c0872 2868 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2869 char *stub_name;
25f72752 2870 const asection *id_sec;
30667bf3
AM
2871
2872 r_type = ELF32_R_TYPE (irela->r_info);
2873 r_indx = ELF32_R_SYM (irela->r_info);
2874
2875 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2876 {
2877 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2878 error_ret_free_internal:
2879 if (elf_section_data (section)->relocs == NULL)
2880 free (internal_relocs);
2881 goto error_ret_free_local;
30667bf3
AM
2882 }
2883
2884 /* Only look for stubs on call instructions. */
2885 if (r_type != (unsigned int) R_PARISC_PCREL12F
2886 && r_type != (unsigned int) R_PARISC_PCREL17F
2887 && r_type != (unsigned int) R_PARISC_PCREL22F)
2888 continue;
2889
2890 /* Now determine the call target, its name, value,
2891 section. */
2892 sym_sec = NULL;
2893 sym_value = 0;
f6a8b8c7 2894 destination = -1;
875c0872 2895 hh = NULL;
30667bf3
AM
2896 if (r_indx < symtab_hdr->sh_info)
2897 {
2898 /* It's a local symbol. */
2899 Elf_Internal_Sym *sym;
2900 Elf_Internal_Shdr *hdr;
4fbb74a6 2901 unsigned int shndx;
30667bf3
AM
2902
2903 sym = local_syms + r_indx;
30667bf3
AM
2904 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2905 sym_value = sym->st_value;
4fbb74a6
AM
2906 shndx = sym->st_shndx;
2907 if (shndx < elf_numsections (input_bfd))
2908 {
2909 hdr = elf_elfsections (input_bfd)[shndx];
2910 sym_sec = hdr->bfd_section;
2911 destination = (sym_value + irela->r_addend
2912 + sym_sec->output_offset
2913 + sym_sec->output_section->vma);
2914 }
30667bf3
AM
2915 }
2916 else
2917 {
2918 /* It's an external symbol. */
2919 int e_indx;
2920
2921 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2922 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2923
a63e02c7
DA
2924 while (hh->eh.root.type == bfd_link_hash_indirect
2925 || hh->eh.root.type == bfd_link_hash_warning)
2926 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2927
a63e02c7
DA
2928 if (hh->eh.root.type == bfd_link_hash_defined
2929 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2930 {
a63e02c7
DA
2931 sym_sec = hh->eh.root.u.def.section;
2932 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2933 if (sym_sec->output_section != NULL)
2934 destination = (sym_value + irela->r_addend
2935 + sym_sec->output_offset
2936 + sym_sec->output_section->vma);
2937 }
a63e02c7 2938 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 2939 {
0e1862bb 2940 if (! bfd_link_pic (info))
c432ba1a
AM
2941 continue;
2942 }
a63e02c7 2943 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2944 {
59c2e50f 2945 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2946 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2947 == STV_DEFAULT)
a63e02c7 2948 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
2949 continue;
2950 }
30667bf3
AM
2951 else
2952 {
2953 bfd_set_error (bfd_error_bad_value);
2954 goto error_ret_free_internal;
2955 }
2956 }
2957
2958 /* Determine what (if any) linker stub is needed. */
875c0872 2959 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 2960 destination, info);
30667bf3
AM
2961 if (stub_type == hppa_stub_none)
2962 continue;
2963
25f72752 2964 /* Support for grouping stub sections. */
83c81bfe 2965 id_sec = htab->stub_group[section->id].link_sec;
25f72752 2966
30667bf3 2967 /* Get the name of this stub. */
875c0872 2968 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
2969 if (!stub_name)
2970 goto error_ret_free_internal;
2971
a63e02c7 2972 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2973 stub_name,
b34976b6 2974 FALSE, FALSE);
875c0872 2975 if (hsh != NULL)
30667bf3
AM
2976 {
2977 /* The proper stub has already been created. */
2978 free (stub_name);
2979 continue;
2980 }
2981
875c0872
DA
2982 hsh = hppa_add_stub (stub_name, section, htab);
2983 if (hsh == NULL)
30667bf3
AM
2984 {
2985 free (stub_name);
1e2f5b6e 2986 goto error_ret_free_internal;
30667bf3
AM
2987 }
2988
875c0872
DA
2989 hsh->target_value = sym_value;
2990 hsh->target_section = sym_sec;
2991 hsh->stub_type = stub_type;
0e1862bb 2992 if (bfd_link_pic (info))
30667bf3
AM
2993 {
2994 if (stub_type == hppa_stub_import)
875c0872 2995 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 2996 else if (stub_type == hppa_stub_long_branch)
875c0872 2997 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 2998 }
a63e02c7 2999 hsh->hh = hh;
b34976b6 3000 stub_changed = TRUE;
30667bf3
AM
3001 }
3002
3003 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3004 if (elf_section_data (section)->relocs == NULL)
3005 free (internal_relocs);
30667bf3
AM
3006 }
3007 }
3008
3009 if (!stub_changed)
3010 break;
3011
3012 /* OK, we've added some stubs. Find out the new size of the
3013 stub sections. */
83c81bfe 3014 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3015 stub_sec != NULL;
3016 stub_sec = stub_sec->next)
a464198b
AM
3017 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3018 stub_sec->size = 0;
74d1c347 3019
a63e02c7 3020 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3021
30667bf3 3022 /* Ask the linker to do its stuff. */
83c81bfe 3023 (*htab->layout_sections_again) ();
b34976b6 3024 stub_changed = FALSE;
30667bf3
AM
3025 }
3026
6cdc0ccc 3027 free (htab->all_local_syms);
b34976b6 3028 return TRUE;
30667bf3
AM
3029
3030 error_ret_free_local:
b4655ea9 3031 free (htab->all_local_syms);
b34976b6 3032 return FALSE;
30667bf3
AM
3033}
3034
30667bf3
AM
3035/* For a final link, this function is called after we have sized the
3036 stubs to provide a value for __gp. */
3037
b34976b6 3038bfd_boolean
c39a58e6 3039elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3040{
b4655ea9
AM
3041 struct bfd_link_hash_entry *h;
3042 asection *sec = NULL;
3043 bfd_vma gp_val = 0;
30667bf3 3044
55ef6584 3045 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
30667bf3 3046
df8634e3 3047 if (h != NULL
b4655ea9
AM
3048 && (h->type == bfd_link_hash_defined
3049 || h->type == bfd_link_hash_defweak))
30667bf3 3050 {
b4655ea9
AM
3051 gp_val = h->u.def.value;
3052 sec = h->u.def.section;
30667bf3
AM
3053 }
3054 else
3055 {
0eddce27
AM
3056 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3057 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3058
74d1c347
AM
3059 /* Choose to point our LTP at, in this order, one of .plt, .got,
3060 or .data, if these sections exist. In the case of choosing
3061 .plt try to make the LTP ideal for addressing anywhere in the
3062 .plt or .got with a 14 bit signed offset. Typically, the end
3063 of the .plt is the start of the .got, so choose .plt + 0x2000
3064 if either the .plt or .got is larger than 0x2000. If both
3065 the .plt and .got are smaller than 0x2000, choose the end of
3066 the .plt section. */
225247f0
JT
3067 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3068 ? NULL : splt;
74d1c347 3069 if (sec != NULL)
30667bf3 3070 {
eea6121a
AM
3071 gp_val = sec->size;
3072 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3073 {
3074 gp_val = 0x2000;
3075 }
3076 }
3077 else
3078 {
b4655ea9 3079 sec = sgot;
74d1c347
AM
3080 if (sec != NULL)
3081 {
225247f0
JT
3082 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3083 {
07d6d2b8 3084 /* We know we don't have a .plt. If .got is large,
225247f0 3085 offset our LTP. */
07d6d2b8 3086 if (sec->size > 0x2000)
225247f0
JT
3087 gp_val = 0x2000;
3088 }
74d1c347
AM
3089 }
3090 else
3091 {
3092 /* No .plt or .got. Who cares what the LTP is? */
3093 sec = bfd_get_section_by_name (abfd, ".data");
3094 }
30667bf3 3095 }
df8634e3
AM
3096
3097 if (h != NULL)
3098 {
b4655ea9
AM
3099 h->type = bfd_link_hash_defined;
3100 h->u.def.value = gp_val;
df8634e3 3101 if (sec != NULL)
b4655ea9 3102 h->u.def.section = sec;
df8634e3 3103 else
b4655ea9 3104 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3105 }
30667bf3
AM
3106 }
3107
55ef6584
AM
3108 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3109 {
3110 if (sec != NULL && sec->output_section != NULL)
3111 gp_val += sec->output_section->vma + sec->output_offset;
74d1c347 3112
55ef6584
AM
3113 elf_gp (abfd) = gp_val;
3114 }
b34976b6 3115 return TRUE;
30667bf3
AM
3116}
3117
30667bf3
AM
3118/* Build all the stubs associated with the current output file. The
3119 stubs are kept in a hash table attached to the main linker hash
3120 table. We also set up the .plt entries for statically linked PIC
3121 functions here. This function is called via hppaelf_finish in the
3122 linker. */
3123
b34976b6 3124bfd_boolean
c39a58e6 3125elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3126{
3127 asection *stub_sec;
3128 struct bfd_hash_table *table;
83c81bfe 3129 struct elf32_hppa_link_hash_table *htab;
30667bf3 3130
83c81bfe 3131 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3132 if (htab == NULL)
3133 return FALSE;
30667bf3 3134
83c81bfe 3135 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3136 stub_sec != NULL;
3137 stub_sec = stub_sec->next)
a464198b
AM
3138 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3139 && stub_sec->size != 0)
3140 {
3141 /* Allocate memory to hold the linker stubs. */
3142 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3143 if (stub_sec->contents == NULL)
3144 return FALSE;
3145 stub_sec->size = 0;
3146 }
30667bf3
AM
3147
3148 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3149 table = &htab->bstab;
30667bf3
AM
3150 bfd_hash_traverse (table, hppa_build_one_stub, info);
3151
b34976b6 3152 return TRUE;
30667bf3
AM
3153}
3154
9b52905e 3155/* Return the base vma address which should be subtracted from the real
68ffbac6 3156 address when resolving a dtpoff relocation.
9b52905e
NC
3157 This is PT_TLS segment p_vaddr. */
3158
3159static bfd_vma
3160dtpoff_base (struct bfd_link_info *info)
3161{
3162 /* If tls_sec is NULL, we should have signalled an error already. */
3163 if (elf_hash_table (info)->tls_sec == NULL)
3164 return 0;
3165 return elf_hash_table (info)->tls_sec->vma;
3166}
3167
3168/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3169
3170static bfd_vma
3171tpoff (struct bfd_link_info *info, bfd_vma address)
3172{
3173 struct elf_link_hash_table *htab = elf_hash_table (info);
3174
3175 /* If tls_sec is NULL, we should have signalled an error already. */
3176 if (htab->tls_sec == NULL)
3177 return 0;
68ffbac6 3178 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3179 tcbhead structure which has 2 pointer fields. */
68ffbac6 3180 return (address - htab->tls_sec->vma
9b52905e
NC
3181 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3182}
3183
c46b7515
AM
3184/* Perform a final link. */
3185
b34976b6 3186static bfd_boolean
c39a58e6 3187elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3188{
6d4b2867
JDA
3189 struct stat buf;
3190
4dc86686 3191 /* Invoke the regular ELF linker to do all the work. */
c152c796 3192 if (!bfd_elf_final_link (abfd, info))
b34976b6 3193 return FALSE;
c46b7515
AM
3194
3195 /* If we're producing a final executable, sort the contents of the
985142a4 3196 unwind section. */
0e1862bb 3197 if (bfd_link_relocatable (info))
d9f40817
DA
3198 return TRUE;
3199
6d4b2867
JDA
3200 /* Do not attempt to sort non-regular files. This is here
3201 especially for configure scripts and kernel builds which run
3202 tests with "ld [...] -o /dev/null". */
3203 if (stat (abfd->filename, &buf) != 0
3204 || !S_ISREG(buf.st_mode))
3205 return TRUE;
3206
46fe4e66 3207 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3208}
3209
3210/* Record the lowest address for the data and text segments. */
3211
3212static void
2ea37f1c 3213hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3214{
83c81bfe 3215 struct elf32_hppa_link_hash_table *htab;
c46b7515 3216
875c0872 3217 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3218 if (htab == NULL)
3219 return;
c46b7515
AM
3220
3221 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3222 {
2ea37f1c
NC
3223 bfd_vma value;
3224 Elf_Internal_Phdr *p;
3225
3226 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3227 BFD_ASSERT (p != NULL);
3228 value = p->p_vaddr;
c46b7515
AM
3229
3230 if ((section->flags & SEC_READONLY) != 0)
3231 {
83c81bfe
AM
3232 if (value < htab->text_segment_base)
3233 htab->text_segment_base = value;
c46b7515
AM
3234 }
3235 else
3236 {
83c81bfe
AM
3237 if (value < htab->data_segment_base)
3238 htab->data_segment_base = value;
c46b7515
AM
3239 }
3240 }
3241}
3242
30667bf3
AM
3243/* Perform a relocation as part of a final link. */
3244
3245static bfd_reloc_status_type
c39a58e6
AM
3246final_link_relocate (asection *input_section,
3247 bfd_byte *contents,
875c0872 3248 const Elf_Internal_Rela *rela,
c39a58e6
AM
3249 bfd_vma value,
3250 struct elf32_hppa_link_hash_table *htab,
3251 asection *sym_sec,
875c0872 3252 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3253 struct bfd_link_info *info)
30667bf3 3254{
2365f8d7 3255 unsigned int insn;
875c0872 3256 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3257 unsigned int orig_r_type = r_type;
30667bf3
AM
3258 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3259 int r_format = howto->bitsize;
3260 enum hppa_reloc_field_selector_type_alt r_field;
3261 bfd *input_bfd = input_section->owner;
875c0872 3262 bfd_vma offset = rela->r_offset;
30667bf3
AM
3263 bfd_vma max_branch_offset = 0;
3264 bfd_byte *hit_data = contents + offset;
875c0872 3265 bfd_signed_vma addend = rela->r_addend;
30667bf3 3266 bfd_vma location;
875c0872 3267 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3268 int val;
30667bf3
AM
3269
3270 if (r_type == R_PARISC_NONE)
3271 return bfd_reloc_ok;
3272
3273 insn = bfd_get_32 (input_bfd, hit_data);
3274
3275 /* Find out where we are and where we're going. */
3276 location = (offset +
3277 input_section->output_offset +
3278 input_section->output_section->vma);
3279
a252afa4
DA
3280 /* If we are not building a shared library, convert DLTIND relocs to
3281 DPREL relocs. */
0e1862bb 3282 if (!bfd_link_pic (info))
a252afa4
DA
3283 {
3284 switch (r_type)
4fc8051d
AM
3285 {
3286 case R_PARISC_DLTIND21L:
143bb599
DA
3287 case R_PARISC_TLS_GD21L:
3288 case R_PARISC_TLS_LDM21L:
3289 case R_PARISC_TLS_IE21L:
4fc8051d 3290 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3291 break;
3292
4fc8051d 3293 case R_PARISC_DLTIND14R:
143bb599
DA
3294 case R_PARISC_TLS_GD14R:
3295 case R_PARISC_TLS_LDM14R:
3296 case R_PARISC_TLS_IE14R:
4fc8051d 3297 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3298 break;
3299
4fc8051d
AM
3300 case R_PARISC_DLTIND14F:
3301 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3302 break;
3303 }
3304 }
3305
30667bf3
AM
3306 switch (r_type)
3307 {
3308 case R_PARISC_PCREL12F:
3309 case R_PARISC_PCREL17F:
3310 case R_PARISC_PCREL22F:
067fa4a6
AM
3311 /* If this call should go via the plt, find the import stub in
3312 the stub hash. */
215f5271
AM
3313 if (sym_sec == NULL
3314 || sym_sec->output_section == NULL
3315 || (hh != NULL
3316 && hh->eh.plt.offset != (bfd_vma) -1
3317 && hh->eh.dynindx != -1
3318 && !hh->plabel
3319 && (bfd_link_pic (info)
3320 || !hh->eh.def_regular
3321 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3322 {
875c0872 3323 hsh = hppa_get_stub_entry (input_section, sym_sec,
7455c018 3324 hh, rela, htab);
875c0872 3325 if (hsh != NULL)
30667bf3 3326 {
875c0872
DA
3327 value = (hsh->stub_offset
3328 + hsh->stub_sec->output_offset
3329 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3330 addend = 0;
3331 }
875c0872 3332 else if (sym_sec == NULL && hh != NULL
a63e02c7 3333 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3334 {
db20fd76
AM
3335 /* It's OK if undefined weak. Calls to undefined weak
3336 symbols behave as if the "called" function
3337 immediately returns. We can thus call to a weak
3338 function without first checking whether the function
3339 is defined. */
30667bf3 3340 value = location;
db20fd76 3341 addend = 8;
30667bf3
AM
3342 }
3343 else
f09ebc7d 3344 return bfd_reloc_undefined;
30667bf3
AM
3345 }
3346 /* Fall thru. */
3347
3348 case R_PARISC_PCREL21L:
3349 case R_PARISC_PCREL17C:
3350 case R_PARISC_PCREL17R:
3351 case R_PARISC_PCREL14R:
3352 case R_PARISC_PCREL14F:
36751eee 3353 case R_PARISC_PCREL32:
30667bf3
AM
3354 /* Make it a pc relative offset. */
3355 value -= location;
3356 addend -= 8;
3357 break;
3358
3359 case R_PARISC_DPREL21L:
3360 case R_PARISC_DPREL14R:
3361 case R_PARISC_DPREL14F:
a252afa4
DA
3362 /* Convert instructions that use the linkage table pointer (r19) to
3363 instructions that use the global data pointer (dp). This is the
3364 most efficient way of using PIC code in an incomplete executable,
3365 but the user must follow the standard runtime conventions for
3366 accessing data for this to work. */
143bb599 3367 if (orig_r_type != r_type)
a252afa4 3368 {
143bb599
DA
3369 if (r_type == R_PARISC_DPREL21L)
3370 {
3371 /* GCC sometimes uses a register other than r19 for the
3372 operation, so we must convert any addil instruction
3373 that uses this relocation. */
2365f8d7 3374 if ((insn & 0xfc000000) == OP_ADDIL << 26)
143bb599
DA
3375 insn = ADDIL_DP;
3376 else
3377 /* We must have a ldil instruction. It's too hard to find
3378 and convert the associated add instruction, so issue an
3379 error. */
4eca0228 3380 _bfd_error_handler
695344c0 3381 /* xgettext:c-format */
2dcf00ce
AM
3382 (_("%pB(%pA+%#" PRIx64 "): %s fixup for insn %#x "
3383 "is not supported in a non-shared link"),
143bb599
DA
3384 input_bfd,
3385 input_section,
2dcf00ce 3386 (uint64_t) offset,
143bb599
DA
3387 howto->name,
3388 insn);
3389 }
3390 else if (r_type == R_PARISC_DPREL14F)
3391 {
3392 /* This must be a format 1 load/store. Change the base
3393 register to dp. */
3394 insn = (insn & 0xfc1ffff) | (27 << 21);
3395 }
a252afa4
DA
3396 }
3397
143bb599
DA
3398 /* For all the DP relative relocations, we need to examine the symbol's
3399 section. If it has no section or if it's a code section, then
3400 "data pointer relative" makes no sense. In that case we don't
3401 adjust the "value", and for 21 bit addil instructions, we change the
3402 source addend register from %dp to %r0. This situation commonly
3403 arises for undefined weak symbols and when a variable's "constness"
3404 is declared differently from the way the variable is defined. For
3405 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3406 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3 3407 {
2365f8d7
AM
3408 if ((insn & ((0x3fu << 26) | (0x1f << 21)))
3409 == ((OP_ADDIL << 26) | (27 << 21)))
30667bf3
AM
3410 {
3411 insn &= ~ (0x1f << 21);
30667bf3
AM
3412 }
3413 /* Now try to make things easy for the dynamic linker. */
3414
3415 break;
3416 }
74d1c347 3417 /* Fall thru. */
30667bf3
AM
3418
3419 case R_PARISC_DLTIND21L:
3420 case R_PARISC_DLTIND14R:
3421 case R_PARISC_DLTIND14F:
143bb599
DA
3422 case R_PARISC_TLS_GD21L:
3423 case R_PARISC_TLS_LDM21L:
3424 case R_PARISC_TLS_IE21L:
9b52905e 3425 case R_PARISC_TLS_GD14R:
9b52905e 3426 case R_PARISC_TLS_LDM14R:
9b52905e 3427 case R_PARISC_TLS_IE14R:
30667bf3
AM
3428 value -= elf_gp (input_section->output_section->owner);
3429 break;
3430
c46b7515
AM
3431 case R_PARISC_SEGREL32:
3432 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3433 value -= htab->text_segment_base;
c46b7515 3434 else
83c81bfe 3435 value -= htab->data_segment_base;
c46b7515
AM
3436 break;
3437
30667bf3
AM
3438 default:
3439 break;
3440 }
3441
3442 switch (r_type)
3443 {
3444 case R_PARISC_DIR32:
47d89dba 3445 case R_PARISC_DIR14F:
30667bf3
AM
3446 case R_PARISC_DIR17F:
3447 case R_PARISC_PCREL17C:
3448 case R_PARISC_PCREL14F:
36751eee 3449 case R_PARISC_PCREL32:
30667bf3
AM
3450 case R_PARISC_DPREL14F:
3451 case R_PARISC_PLABEL32:
3452 case R_PARISC_DLTIND14F:
3453 case R_PARISC_SEGBASE:
3454 case R_PARISC_SEGREL32:
9b52905e
NC
3455 case R_PARISC_TLS_DTPMOD32:
3456 case R_PARISC_TLS_DTPOFF32:
3457 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3458 r_field = e_fsel;
3459 break;
3460
1bf42538 3461 case R_PARISC_DLTIND21L:
30667bf3 3462 case R_PARISC_PCREL21L:
30667bf3 3463 case R_PARISC_PLABEL21L:
1bf42538
JL
3464 r_field = e_lsel;
3465 break;
3466
3467 case R_PARISC_DIR21L:
3468 case R_PARISC_DPREL21L:
9b52905e
NC
3469 case R_PARISC_TLS_GD21L:
3470 case R_PARISC_TLS_LDM21L:
3471 case R_PARISC_TLS_LDO21L:
3472 case R_PARISC_TLS_IE21L:
3473 case R_PARISC_TLS_LE21L:
30667bf3
AM
3474 r_field = e_lrsel;
3475 break;
3476
30667bf3 3477 case R_PARISC_PCREL17R:
30667bf3 3478 case R_PARISC_PCREL14R:
30667bf3
AM
3479 case R_PARISC_PLABEL14R:
3480 case R_PARISC_DLTIND14R:
1bf42538
JL
3481 r_field = e_rsel;
3482 break;
3483
3484 case R_PARISC_DIR17R:
3485 case R_PARISC_DIR14R:
3486 case R_PARISC_DPREL14R:
9b52905e
NC
3487 case R_PARISC_TLS_GD14R:
3488 case R_PARISC_TLS_LDM14R:
3489 case R_PARISC_TLS_LDO14R:
3490 case R_PARISC_TLS_IE14R:
3491 case R_PARISC_TLS_LE14R:
30667bf3
AM
3492 r_field = e_rrsel;
3493 break;
3494
3495 case R_PARISC_PCREL12F:
3496 case R_PARISC_PCREL17F:
3497 case R_PARISC_PCREL22F:
3498 r_field = e_fsel;
3499
3500 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3501 {
3502 max_branch_offset = (1 << (17-1)) << 2;
3503 }
3504 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3505 {
3506 max_branch_offset = (1 << (12-1)) << 2;
3507 }
3508 else
3509 {
3510 max_branch_offset = (1 << (22-1)) << 2;
3511 }
3512
3513 /* sym_sec is NULL on undefined weak syms or when shared on
3514 undefined syms. We've already checked for a stub for the
3515 shared undefined case. */
3516 if (sym_sec == NULL)
3517 break;
3518
3519 /* If the branch is out of reach, then redirect the
3520 call to the local stub for this function. */
3521 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3522 {
875c0872 3523 hsh = hppa_get_stub_entry (input_section, sym_sec,
7455c018 3524 hh, rela, htab);
875c0872 3525 if (hsh == NULL)
f09ebc7d 3526 return bfd_reloc_undefined;
30667bf3
AM
3527
3528 /* Munge up the value and addend so that we call the stub
3529 rather than the procedure directly. */
875c0872
DA
3530 value = (hsh->stub_offset
3531 + hsh->stub_sec->output_offset
3532 + hsh->stub_sec->output_section->vma
30667bf3
AM
3533 - location);
3534 addend = -8;
3535 }
3536 break;
3537
3538 /* Something we don't know how to handle. */
3539 default:
3540 return bfd_reloc_notsupported;
3541 }
3542
3543 /* Make sure we can reach the stub. */
3544 if (max_branch_offset != 0
3545 && value + addend + max_branch_offset >= 2*max_branch_offset)
3546 {
4eca0228 3547 _bfd_error_handler
695344c0 3548 /* xgettext:c-format */
2dcf00ce
AM
3549 (_("%pB(%pA+%#" PRIx64 "): cannot reach %s, "
3550 "recompile with -ffunction-sections"),
d003868e
AM
3551 input_bfd,
3552 input_section,
2dcf00ce 3553 (uint64_t) offset,
a63e02c7 3554 hsh->bh_root.string);
ce757d15 3555 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3556 return bfd_reloc_notsupported;
3557 }
3558
3559 val = hppa_field_adjust (value, addend, r_field);
3560
3561 switch (r_type)
3562 {
3563 case R_PARISC_PCREL12F:
3564 case R_PARISC_PCREL17C:
3565 case R_PARISC_PCREL17F:
3566 case R_PARISC_PCREL17R:
3567 case R_PARISC_PCREL22F:
3568 case R_PARISC_DIR17F:
3569 case R_PARISC_DIR17R:
3570 /* This is a branch. Divide the offset by four.
3571 Note that we need to decide whether it's a branch or
3572 otherwise by inspecting the reloc. Inspecting insn won't
3573 work as insn might be from a .word directive. */
3574 val >>= 2;
3575 break;
3576
3577 default:
3578 break;
3579 }
3580
3581 insn = hppa_rebuild_insn (insn, val, r_format);
3582
3583 /* Update the instruction word. */
74d1c347 3584 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3585 return bfd_reloc_ok;
3586}
3587
30667bf3
AM
3588/* Relocate an HPPA ELF section. */
3589
b34976b6 3590static bfd_boolean
c39a58e6
AM
3591elf32_hppa_relocate_section (bfd *output_bfd,
3592 struct bfd_link_info *info,
3593 bfd *input_bfd,
3594 asection *input_section,
3595 bfd_byte *contents,
3596 Elf_Internal_Rela *relocs,
3597 Elf_Internal_Sym *local_syms,
3598 asection **local_sections)
30667bf3 3599{
30667bf3 3600 bfd_vma *local_got_offsets;
83c81bfe 3601 struct elf32_hppa_link_hash_table *htab;
30667bf3 3602 Elf_Internal_Shdr *symtab_hdr;
875c0872 3603 Elf_Internal_Rela *rela;
30667bf3 3604 Elf_Internal_Rela *relend;
30667bf3
AM
3605
3606 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3607
83c81bfe 3608 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3609 if (htab == NULL)
3610 return FALSE;
3611
74d1c347 3612 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3613
875c0872 3614 rela = relocs;
30667bf3 3615 relend = relocs + input_section->reloc_count;
875c0872 3616 for (; rela < relend; rela++)
30667bf3
AM
3617 {
3618 unsigned int r_type;
3619 reloc_howto_type *howto;
3620 unsigned int r_symndx;
875c0872 3621 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3622 Elf_Internal_Sym *sym;
3623 asection *sym_sec;
3624 bfd_vma relocation;
875c0872 3625 bfd_reloc_status_type rstatus;
30667bf3 3626 const char *sym_name;
b34976b6
AM
3627 bfd_boolean plabel;
3628 bfd_boolean warned_undef;
30667bf3 3629
875c0872 3630 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3631 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3632 {
3633 bfd_set_error (bfd_error_bad_value);
b34976b6 3634 return FALSE;
30667bf3
AM
3635 }
3636 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3637 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3638 continue;
3639
875c0872
DA
3640 r_symndx = ELF32_R_SYM (rela->r_info);
3641 hh = NULL;
30667bf3
AM
3642 sym = NULL;
3643 sym_sec = NULL;
b34976b6 3644 warned_undef = FALSE;
30667bf3
AM
3645 if (r_symndx < symtab_hdr->sh_info)
3646 {
3647 /* This is a local symbol, h defaults to NULL. */
3648 sym = local_syms + r_symndx;
3649 sym_sec = local_sections[r_symndx];
875c0872 3650 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3651 }
3652 else
3653 {
875c0872 3654 struct elf_link_hash_entry *eh;
62d887d4 3655 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3656 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3657
875c0872 3658 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3659 r_symndx, symtab_hdr, sym_hashes,
875c0872 3660 eh, sym_sec, relocation,
62d887d4
L
3661 unresolved_reloc, warned_undef,
3662 ignored);
560e09e9 3663
0e1862bb 3664 if (!bfd_link_relocatable (info)
ab96bf03 3665 && relocation == 0
875c0872
DA
3666 && eh->root.type != bfd_link_hash_defined
3667 && eh->root.type != bfd_link_hash_defweak
3668 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3669 {
59c2e50f 3670 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3671 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3672 && eh->type == STT_PARISC_MILLI)
560e09e9 3673 {
1a72702b
AM
3674 (*info->callbacks->undefined_symbol)
3675 (info, eh_name (eh), input_bfd,
3676 input_section, rela->r_offset, FALSE);
560e09e9
NC
3677 warned_undef = TRUE;
3678 }
30667bf3 3679 }
875c0872 3680 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3681 }
3682
dbaa2011 3683 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3684 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3685 rela, 1, relend,
3686 elf_hppa_howto_table + r_type, 0,
e4067dbb 3687 contents);
ab96bf03 3688
0e1862bb 3689 if (bfd_link_relocatable (info))
ab96bf03
AM
3690 continue;
3691
30667bf3 3692 /* Do any required modifications to the relocation value, and
25f72752
AM
3693 determine what types of dynamic info we need to output, if
3694 any. */
74d1c347 3695 plabel = 0;
30667bf3
AM
3696 switch (r_type)
3697 {
3698 case R_PARISC_DLTIND14F:
3699 case R_PARISC_DLTIND14R:
3700 case R_PARISC_DLTIND21L:
ce757d15
AM
3701 {
3702 bfd_vma off;
d336fa6d
AM
3703 bfd_boolean do_got = FALSE;
3704 bfd_boolean reloc = bfd_link_pic (info);
ce757d15
AM
3705
3706 /* Relocation is to the entry for this symbol in the
3707 global offset table. */
875c0872 3708 if (hh != NULL)
ce757d15 3709 {
b34976b6 3710 bfd_boolean dyn;
ce757d15 3711
a63e02c7
DA
3712 off = hh->eh.got.offset;
3713 dyn = htab->etab.dynamic_sections_created;
d336fa6d
AM
3714 reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)
3715 && (reloc
3716 || (hh->eh.dynindx != -1
3717 && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))));
3718 if (!reloc
3719 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3720 bfd_link_pic (info),
3721 &hh->eh))
ce757d15
AM
3722 {
3723 /* If we aren't going to call finish_dynamic_symbol,
3724 then we need to handle initialisation of the .got
3725 entry and create needed relocs here. Since the
3726 offset must always be a multiple of 4, we use the
3727 least significant bit to record whether we have
3728 initialised it already. */
3729 if ((off & 1) != 0)
3730 off &= ~1;
3731 else
3732 {
a63e02c7 3733 hh->eh.got.offset |= 1;
d336fa6d 3734 do_got = TRUE;
ce757d15
AM
3735 }
3736 }
3737 }
3738 else
3739 {
3740 /* Local symbol case. */
3741 if (local_got_offsets == NULL)
3742 abort ();
3743
3744 off = local_got_offsets[r_symndx];
3745
3746 /* The offset must always be a multiple of 4. We use
3747 the least significant bit to record whether we have
3748 already generated the necessary reloc. */
3749 if ((off & 1) != 0)
3750 off &= ~1;
3751 else
3752 {
3753 local_got_offsets[r_symndx] |= 1;
d336fa6d 3754 do_got = TRUE;
ce757d15
AM
3755 }
3756 }
68fb2e56 3757
ce757d15
AM
3758 if (do_got)
3759 {
d336fa6d 3760 if (reloc)
ce757d15
AM
3761 {
3762 /* Output a dynamic relocation for this GOT entry.
3763 In this case it is relative to the base of the
3764 object because the symbol index is zero. */
3765 Elf_Internal_Rela outrel;
947216bf 3766 bfd_byte *loc;
ce558b89 3767 asection *sec = htab->etab.srelgot;
ce757d15
AM
3768
3769 outrel.r_offset = (off
ce558b89
AM
3770 + htab->etab.sgot->output_offset
3771 + htab->etab.sgot->output_section->vma);
ce757d15
AM
3772 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3773 outrel.r_addend = relocation;
875c0872
DA
3774 loc = sec->contents;
3775 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3776 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3777 }
3778 else
30667bf3 3779 bfd_put_32 (output_bfd, relocation,
ce558b89 3780 htab->etab.sgot->contents + off);
ce757d15 3781 }
30667bf3 3782
ce757d15
AM
3783 if (off >= (bfd_vma) -2)
3784 abort ();
30667bf3 3785
ce757d15
AM
3786 /* Add the base of the GOT to the relocation value. */
3787 relocation = (off
ce558b89
AM
3788 + htab->etab.sgot->output_offset
3789 + htab->etab.sgot->output_section->vma);
ce757d15 3790 }
30667bf3 3791 break;
252b5132 3792
c46b7515
AM
3793 case R_PARISC_SEGREL32:
3794 /* If this is the first SEGREL relocation, then initialize
3795 the segment base values. */
83c81bfe
AM
3796 if (htab->text_segment_base == (bfd_vma) -1)
3797 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3798 break;
3799
30667bf3
AM
3800 case R_PARISC_PLABEL14R:
3801 case R_PARISC_PLABEL21L:
3802 case R_PARISC_PLABEL32:
a63e02c7 3803 if (htab->etab.dynamic_sections_created)
252b5132 3804 {
ce757d15 3805 bfd_vma off;
b34976b6 3806 bfd_boolean do_plt = 0;
74d1c347
AM
3807 /* If we have a global symbol with a PLT slot, then
3808 redirect this relocation to it. */
875c0872 3809 if (hh != NULL)
74d1c347 3810 {
a63e02c7 3811 off = hh->eh.plt.offset;
0e1862bb
L
3812 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3813 bfd_link_pic (info),
a63e02c7 3814 &hh->eh))
8dea1268 3815 {
4a7e5234 3816 /* In a non-shared link, adjust_dynamic_symbol
8dea1268 3817 isn't called for symbols forced local. We
dc810e39 3818 need to write out the plt entry here. */
8dea1268
AM
3819 if ((off & 1) != 0)
3820 off &= ~1;
3821 else
3822 {
a63e02c7 3823 hh->eh.plt.offset |= 1;
ce757d15 3824 do_plt = 1;
8dea1268
AM
3825 }
3826 }
74d1c347
AM
3827 }
3828 else
3829 {
68fb2e56
AM
3830 bfd_vma *local_plt_offsets;
3831
3832 if (local_got_offsets == NULL)
3833 abort ();
74d1c347 3834
68fb2e56
AM
3835 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3836 off = local_plt_offsets[r_symndx];
74d1c347
AM
3837
3838 /* As for the local .got entry case, we use the last
3839 bit to record whether we've already initialised
3840 this local .plt entry. */
3841 if ((off & 1) != 0)
3842 off &= ~1;
ce757d15
AM
3843 else
3844 {
3845 local_plt_offsets[r_symndx] |= 1;
3846 do_plt = 1;
3847 }
3848 }
3849
3850 if (do_plt)
3851 {
0e1862bb 3852 if (bfd_link_pic (info))
ce757d15
AM
3853 {
3854 /* Output a dynamic IPLT relocation for this
3855 PLT entry. */
3856 Elf_Internal_Rela outrel;
947216bf 3857 bfd_byte *loc;
ce558b89 3858 asection *s = htab->etab.srelplt;
ce757d15
AM
3859
3860 outrel.r_offset = (off
ce558b89
AM
3861 + htab->etab.splt->output_offset
3862 + htab->etab.splt->output_section->vma);
ce757d15
AM
3863 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3864 outrel.r_addend = relocation;
947216bf
AM
3865 loc = s->contents;
3866 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3867 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3868 }
74d1c347
AM
3869 else
3870 {
3871 bfd_put_32 (output_bfd,
3872 relocation,
ce558b89 3873 htab->etab.splt->contents + off);
74d1c347 3874 bfd_put_32 (output_bfd,
ce558b89
AM
3875 elf_gp (htab->etab.splt->output_section->owner),
3876 htab->etab.splt->contents + off + 4);
74d1c347
AM
3877 }
3878 }
3879
68fb2e56 3880 if (off >= (bfd_vma) -2)
49e9d0d3 3881 abort ();
74d1c347
AM
3882
3883 /* PLABELs contain function pointers. Relocation is to
3884 the entry for the function in the .plt. The magic +2
3885 offset signals to $$dyncall that the function pointer
3886 is in the .plt and thus has a gp pointer too.
3887 Exception: Undefined PLABELs should have a value of
3888 zero. */
875c0872 3889 if (hh == NULL
a63e02c7
DA
3890 || (hh->eh.root.type != bfd_link_hash_undefweak
3891 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3892 {
3893 relocation = (off
ce558b89
AM
3894 + htab->etab.splt->output_offset
3895 + htab->etab.splt->output_section->vma
74d1c347
AM
3896 + 2);
3897 }
3898 plabel = 1;
30667bf3 3899 }
1a0670f3 3900 /* Fall through. */
30667bf3
AM
3901
3902 case R_PARISC_DIR17F:
3903 case R_PARISC_DIR17R:
47d89dba 3904 case R_PARISC_DIR14F:
30667bf3
AM
3905 case R_PARISC_DIR14R:
3906 case R_PARISC_DIR21L:
3907 case R_PARISC_DPREL14F:
3908 case R_PARISC_DPREL14R:
3909 case R_PARISC_DPREL21L:
3910 case R_PARISC_DIR32:
b1e24c02 3911 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3912 break;
3913
287c7eaf
AM
3914 if (bfd_link_pic (info)
3915 ? ((hh == NULL
3916 || hh->dyn_relocs != NULL)
3917 && ((hh != NULL && pc_dynrelocs (hh))
3918 || IS_ABSOLUTE_RELOC (r_type)))
3919 : (hh != NULL
3920 && hh->dyn_relocs != NULL))
30667bf3
AM
3921 {
3922 Elf_Internal_Rela outrel;
b34976b6 3923 bfd_boolean skip;
98ceb8ce 3924 asection *sreloc;
947216bf 3925 bfd_byte *loc;
252b5132 3926
30667bf3
AM
3927 /* When generating a shared object, these relocations
3928 are copied into the output file to be resolved at run
3929 time. */
252b5132 3930
875c0872 3931 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3932 outrel.r_offset =
3933 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3934 rela->r_offset);
0bb2d96a
JJ
3935 skip = (outrel.r_offset == (bfd_vma) -1
3936 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3937 outrel.r_offset += (input_section->output_offset
3938 + input_section->output_section->vma);
68ffbac6 3939
30667bf3 3940 if (skip)
252b5132 3941 {
30667bf3 3942 memset (&outrel, 0, sizeof (outrel));
252b5132 3943 }
875c0872 3944 else if (hh != NULL
a63e02c7 3945 && hh->eh.dynindx != -1
74d1c347 3946 && (plabel
446f2863 3947 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 3948 || !bfd_link_pic (info)
a496fbc8 3949 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 3950 || !hh->eh.def_regular))
252b5132 3951 {
a63e02c7 3952 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
3953 }
3954 else /* It's a local symbol, or one marked to become local. */
3955 {
3956 int indx = 0;
edd21aca 3957
30667bf3
AM
3958 /* Add the absolute offset of the symbol. */
3959 outrel.r_addend += relocation;
edd21aca 3960
74d1c347
AM
3961 /* Global plabels need to be processed by the
3962 dynamic linker so that functions have at most one
3963 fptr. For this reason, we need to differentiate
3964 between global and local plabels, which we do by
3965 providing the function symbol for a global plabel
3966 reloc, and no symbol for local plabels. */
3967 if (! plabel
3968 && sym_sec != NULL
30667bf3
AM
3969 && sym_sec->output_section != NULL
3970 && ! bfd_is_abs_section (sym_sec))
252b5132 3971 {
74541ad4
AM
3972 asection *osec;
3973
3974 osec = sym_sec->output_section;
3975 indx = elf_section_data (osec)->dynindx;
3976 if (indx == 0)
3977 {
3978 osec = htab->etab.text_index_section;
3979 indx = elf_section_data (osec)->dynindx;
3980 }
3981 BFD_ASSERT (indx != 0);
4b71bec0 3982
30667bf3
AM
3983 /* We are turning this relocation into one
3984 against a section symbol, so subtract out the
3985 output section's address but not the offset
3986 of the input section in the output section. */
74541ad4 3987 outrel.r_addend -= osec->vma;
252b5132 3988 }
252b5132 3989
30667bf3
AM
3990 outrel.r_info = ELF32_R_INFO (indx, r_type);
3991 }
98ceb8ce
AM
3992 sreloc = elf_section_data (input_section)->sreloc;
3993 if (sreloc == NULL)
3994 abort ();
3995
947216bf
AM
3996 loc = sreloc->contents;
3997 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 3998 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
3999 }
4000 break;
68ffbac6 4001
9b52905e
NC
4002 case R_PARISC_TLS_LDM21L:
4003 case R_PARISC_TLS_LDM14R:
4004 {
4005 bfd_vma off;
68ffbac6 4006
9b52905e
NC
4007 off = htab->tls_ldm_got.offset;
4008 if (off & 1)
4009 off &= ~1;
4010 else
4011 {
4012 Elf_Internal_Rela outrel;
4013 bfd_byte *loc;
4014
68ffbac6 4015 outrel.r_offset = (off
ce558b89
AM
4016 + htab->etab.sgot->output_section->vma
4017 + htab->etab.sgot->output_offset);
9b52905e
NC
4018 outrel.r_addend = 0;
4019 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
ce558b89
AM
4020 loc = htab->etab.srelgot->contents;
4021 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
9b52905e
NC
4022
4023 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4024 htab->tls_ldm_got.offset |= 1;
4025 }
4026
4027 /* Add the base of the GOT to the relocation value. */
4028 relocation = (off
ce558b89
AM
4029 + htab->etab.sgot->output_offset
4030 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4031
4032 break;
4033 }
4034
4035 case R_PARISC_TLS_LDO21L:
4036 case R_PARISC_TLS_LDO14R:
4037 relocation -= dtpoff_base (info);
4038 break;
4039
4040 case R_PARISC_TLS_GD21L:
4041 case R_PARISC_TLS_GD14R:
4042 case R_PARISC_TLS_IE21L:
4043 case R_PARISC_TLS_IE14R:
4044 {
4045 bfd_vma off;
4046 int indx;
4047 char tls_type;
4048
4049 indx = 0;
4050 if (hh != NULL)
4051 {
2e684e75
AM
4052 if (!htab->etab.dynamic_sections_created
4053 || hh->eh.dynindx == -1
4054 || SYMBOL_REFERENCES_LOCAL (info, &hh->eh)
4055 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))
4056 /* This is actually a static link, or it is a
4057 -Bsymbolic link and the symbol is defined
4058 locally, or the symbol was forced to be local
4059 because of a version file. */
4060 ;
4061 else
4062 indx = hh->eh.dynindx;
9b52905e
NC
4063 off = hh->eh.got.offset;
4064 tls_type = hh->tls_type;
4065 }
4066 else
4067 {
4068 off = local_got_offsets[r_symndx];
4069 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4070 }
4071
4072 if (tls_type == GOT_UNKNOWN)
4073 abort ();
4074
4075 if ((off & 1) != 0)
4076 off &= ~1;
4077 else
4078 {
4079 bfd_boolean need_relocs = FALSE;
4080 Elf_Internal_Rela outrel;
4081 bfd_byte *loc = NULL;
4082 int cur_off = off;
4083
07d6d2b8
AM
4084 /* The GOT entries have not been initialized yet. Do it
4085 now, and emit any relocations. If both an IE GOT and a
4086 GD GOT are necessary, we emit the GD first. */
9b52905e 4087
2e684e75 4088 if (indx != 0
4352556b 4089 || (bfd_link_dll (info)
2e684e75
AM
4090 && (hh == NULL
4091 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))))
9b52905e
NC
4092 {
4093 need_relocs = TRUE;
ce558b89 4094 loc = htab->etab.srelgot->contents;
2e684e75
AM
4095 loc += (htab->etab.srelgot->reloc_count
4096 * sizeof (Elf32_External_Rela));
9b52905e
NC
4097 }
4098
4099 if (tls_type & GOT_TLS_GD)
4100 {
4101 if (need_relocs)
4102 {
2e684e75
AM
4103 outrel.r_offset
4104 = (cur_off
4105 + htab->etab.sgot->output_section->vma
4106 + htab->etab.sgot->output_offset);
4107 outrel.r_info
4108 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32);
9b52905e 4109 outrel.r_addend = 0;
9b52905e 4110 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4111 htab->etab.srelgot->reloc_count++;
9b52905e 4112 loc += sizeof (Elf32_External_Rela);
4352556b
AM
4113 bfd_put_32 (output_bfd, 0,
4114 htab->etab.sgot->contents + cur_off);
4115 }
4116 else
4117 /* If we are not emitting relocations for a
4118 general dynamic reference, then we must be in a
4119 static link or an executable link with the
4120 symbol binding locally. Mark it as belonging
4121 to module 1, the executable. */
4122 bfd_put_32 (output_bfd, 1,
4123 htab->etab.sgot->contents + cur_off);
4124
4125 if (indx != 0)
4126 {
2e684e75
AM
4127 outrel.r_info
4128 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4129 outrel.r_offset += 4;
4130 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4131 htab->etab.srelgot->reloc_count++;
4132 loc += sizeof (Elf32_External_Rela);
2e684e75
AM
4133 bfd_put_32 (output_bfd, 0,
4134 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4135 }
4136 else
4352556b
AM
4137 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4138 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4139 cur_off += 8;
4140 }
4141
4142 if (tls_type & GOT_TLS_IE)
4143 {
2e684e75
AM
4144 if (need_relocs
4145 && !(bfd_link_executable (info)
4146 && SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
9b52905e 4147 {
2e684e75
AM
4148 outrel.r_offset
4149 = (cur_off
4150 + htab->etab.sgot->output_section->vma
4151 + htab->etab.sgot->output_offset);
4152 outrel.r_info = ELF32_R_INFO (indx,
4153 R_PARISC_TLS_TPREL32);
9b52905e
NC
4154 if (indx == 0)
4155 outrel.r_addend = relocation - dtpoff_base (info);
4156 else
4157 outrel.r_addend = 0;
9b52905e 4158 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4159 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4160 loc += sizeof (Elf32_External_Rela);
4161 }
4162 else
4163 bfd_put_32 (output_bfd, tpoff (info, relocation),
ce558b89 4164 htab->etab.sgot->contents + cur_off);
9b52905e
NC
4165 cur_off += 4;
4166 }
4167
4168 if (hh != NULL)
4169 hh->eh.got.offset |= 1;
4170 else
4171 local_got_offsets[r_symndx] |= 1;
4172 }
4173
2e684e75
AM
4174 if ((tls_type & GOT_NORMAL) != 0
4175 && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0)
4176 {
4177 if (hh != NULL)
4178 _bfd_error_handler (_("%s has both normal and TLS relocs"),
4179 hh_name (hh));
4180 else
4181 {
4182 Elf_Internal_Sym *isym
4183 = bfd_sym_from_r_symndx (&htab->sym_cache,
4184 input_bfd, r_symndx);
4185 if (isym == NULL)
4186 return FALSE;
4187 sym_name
4188 = bfd_elf_string_from_elf_section (input_bfd,
4189 symtab_hdr->sh_link,
4190 isym->st_name);
4191 if (sym_name == NULL)
4192 return FALSE;
4193 if (*sym_name == '\0')
fd361982 4194 sym_name = bfd_section_name (sym_sec);
2e684e75 4195 _bfd_error_handler
871b3ab2 4196 (_("%pB:%s has both normal and TLS relocs"),
2e684e75
AM
4197 input_bfd, sym_name);
4198 }
4199 bfd_set_error (bfd_error_bad_value);
4200 return FALSE;
4201 }
4202
9b52905e 4203 if ((tls_type & GOT_TLS_GD)
07d6d2b8
AM
4204 && r_type != R_PARISC_TLS_GD21L
4205 && r_type != R_PARISC_TLS_GD14R)
9b52905e
NC
4206 off += 2 * GOT_ENTRY_SIZE;
4207
4208 /* Add the base of the GOT to the relocation value. */
4209 relocation = (off
ce558b89
AM
4210 + htab->etab.sgot->output_offset
4211 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4212
4213 break;
4214 }
4215
4216 case R_PARISC_TLS_LE21L:
4217 case R_PARISC_TLS_LE14R:
4218 {
4219 relocation = tpoff (info, relocation);
4220 break;
4221 }
4222 break;
edd21aca 4223
30667bf3
AM
4224 default:
4225 break;
4226 }
252b5132 4227
875c0872
DA
4228 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4229 htab, sym_sec, hh, info);
252b5132 4230
875c0872 4231 if (rstatus == bfd_reloc_ok)
30667bf3 4232 continue;
252b5132 4233
875c0872 4234 if (hh != NULL)
9b52905e 4235 sym_name = hh_name (hh);
30667bf3
AM
4236 else
4237 {
4238 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4239 symtab_hdr->sh_link,
4240 sym->st_name);
4241 if (sym_name == NULL)
b34976b6 4242 return FALSE;
30667bf3 4243 if (*sym_name == '\0')
fd361982 4244 sym_name = bfd_section_name (sym_sec);
30667bf3 4245 }
edd21aca 4246
30667bf3 4247 howto = elf_hppa_howto_table + r_type;
252b5132 4248
875c0872 4249 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4250 {
875c0872 4251 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4252 {
4eca0228 4253 _bfd_error_handler
695344c0 4254 /* xgettext:c-format */
2dcf00ce 4255 (_("%pB(%pA+%#" PRIx64 "): cannot handle %s for %s"),
d003868e
AM
4256 input_bfd,
4257 input_section,
2dcf00ce 4258 (uint64_t) rela->r_offset,
f09ebc7d
AM
4259 howto->name,
4260 sym_name);
4261 bfd_set_error (bfd_error_bad_value);
b34976b6 4262 return FALSE;
f09ebc7d 4263 }
30667bf3
AM
4264 }
4265 else
1a72702b
AM
4266 (*info->callbacks->reloc_overflow)
4267 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4268 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4269 }
edd21aca 4270
b34976b6 4271 return TRUE;
30667bf3 4272}
252b5132 4273
30667bf3
AM
4274/* Finish up dynamic symbol handling. We set the contents of various
4275 dynamic sections here. */
252b5132 4276
b34976b6 4277static bfd_boolean
c39a58e6
AM
4278elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4279 struct bfd_link_info *info,
875c0872 4280 struct elf_link_hash_entry *eh,
c39a58e6 4281 Elf_Internal_Sym *sym)
30667bf3 4282{
83c81bfe 4283 struct elf32_hppa_link_hash_table *htab;
875c0872 4284 Elf_Internal_Rela rela;
a252afa4 4285 bfd_byte *loc;
edd21aca 4286
83c81bfe 4287 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4288 if (htab == NULL)
4289 return FALSE;
30667bf3 4290
875c0872 4291 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4292 {
4293 bfd_vma value;
30667bf3 4294
875c0872 4295 if (eh->plt.offset & 1)
8dea1268
AM
4296 abort ();
4297
30667bf3
AM
4298 /* This symbol has an entry in the procedure linkage table. Set
4299 it up.
4300
4301 The format of a plt entry is
74d1c347
AM
4302 <funcaddr>
4303 <__gp>
47d89dba 4304 */
30667bf3 4305 value = 0;
875c0872
DA
4306 if (eh->root.type == bfd_link_hash_defined
4307 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4308 {
875c0872
DA
4309 value = eh->root.u.def.value;
4310 if (eh->root.u.def.section->output_section != NULL)
4311 value += (eh->root.u.def.section->output_offset
4312 + eh->root.u.def.section->output_section->vma);
252b5132 4313 }
edd21aca 4314
a252afa4 4315 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4316 rela.r_offset = (eh->plt.offset
ce558b89
AM
4317 + htab->etab.splt->output_offset
4318 + htab->etab.splt->output_section->vma);
875c0872 4319 if (eh->dynindx != -1)
30667bf3 4320 {
875c0872
DA
4321 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4322 rela.r_addend = 0;
30667bf3 4323 }
ce757d15 4324 else
47d89dba 4325 {
a252afa4
DA
4326 /* This symbol has been marked to become local, and is
4327 used by a plabel so must be kept in the .plt. */
875c0872
DA
4328 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4329 rela.r_addend = value;
47d89dba
AM
4330 }
4331
ce558b89
AM
4332 loc = htab->etab.srelplt->contents;
4333 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4334 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
a252afa4 4335
875c0872 4336 if (!eh->def_regular)
30667bf3
AM
4337 {
4338 /* Mark the symbol as undefined, rather than as defined in
4339 the .plt section. Leave the value alone. */
4340 sym->st_shndx = SHN_UNDEF;
4341 }
4342 }
edd21aca 4343
9b52905e 4344 if (eh->got.offset != (bfd_vma) -1
2e684e75 4345 && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0
d336fa6d 4346 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
30667bf3 4347 {
d336fa6d
AM
4348 bfd_boolean is_dyn = (eh->dynindx != -1
4349 && !SYMBOL_REFERENCES_LOCAL (info, eh));
4350
4351 if (is_dyn || bfd_link_pic (info))
30667bf3 4352 {
d336fa6d
AM
4353 /* This symbol has an entry in the global offset table. Set
4354 it up. */
4355
4356 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4357 + htab->etab.sgot->output_offset
4358 + htab->etab.sgot->output_section->vma);
4359
4360 /* If this is a -Bsymbolic link and the symbol is defined
4361 locally or was forced to be local because of a version
4362 file, we just want to emit a RELATIVE reloc. The entry
4363 in the global offset table will already have been
4364 initialized in the relocate_section function. */
4365 if (!is_dyn)
4366 {
4367 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4368 rela.r_addend = (eh->root.u.def.value
4369 + eh->root.u.def.section->output_offset
4370 + eh->root.u.def.section->output_section->vma);
4371 }
4372 else
4373 {
4374 if ((eh->got.offset & 1) != 0)
4375 abort ();
875c0872 4376
d336fa6d
AM
4377 bfd_put_32 (output_bfd, 0,
4378 htab->etab.sgot->contents + (eh->got.offset & ~1));
4379 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4380 rela.r_addend = 0;
4381 }
edd21aca 4382
d336fa6d
AM
4383 loc = htab->etab.srelgot->contents;
4384 loc += (htab->etab.srelgot->reloc_count++
4385 * sizeof (Elf32_External_Rela));
4386 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4387 }
30667bf3 4388 }
edd21aca 4389
875c0872 4390 if (eh->needs_copy)
30667bf3 4391 {
875c0872 4392 asection *sec;
30667bf3
AM
4393
4394 /* This symbol needs a copy reloc. Set it up. */
4395
875c0872
DA
4396 if (! (eh->dynindx != -1
4397 && (eh->root.type == bfd_link_hash_defined
4398 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4399 abort ();
30667bf3 4400
875c0872
DA
4401 rela.r_offset = (eh->root.u.def.value
4402 + eh->root.u.def.section->output_offset
4403 + eh->root.u.def.section->output_section->vma);
4404 rela.r_addend = 0;
4405 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
afbf7e8e 4406 if (eh->root.u.def.section == htab->etab.sdynrelro)
5474d94f
AM
4407 sec = htab->etab.sreldynrelro;
4408 else
4409 sec = htab->etab.srelbss;
875c0872
DA
4410 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4411 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4412 }
4413
4414 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4415 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4416 {
4417 sym->st_shndx = SHN_ABS;
4418 }
4419
b34976b6 4420 return TRUE;
30667bf3
AM
4421}
4422
98ceb8ce
AM
4423/* Used to decide how to sort relocs in an optimal manner for the
4424 dynamic linker, before writing them out. */
4425
4426static enum elf_reloc_type_class
7e612e98
AM
4427elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4428 const asection *rel_sec ATTRIBUTE_UNUSED,
4429 const Elf_Internal_Rela *rela)
98ceb8ce 4430{
9b52905e 4431 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4432 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4433 check below. */
4434 switch ((int) ELF32_R_TYPE (rela->r_info))
4435 {
4436 case R_PARISC_TLS_DTPMOD32:
4437 case R_PARISC_TLS_DTPOFF32:
4438 case R_PARISC_TLS_TPREL32:
07d6d2b8 4439 return reloc_class_normal;
9b52905e
NC
4440 }
4441
cf35638d 4442 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4443 return reloc_class_relative;
4444
4445 switch ((int) ELF32_R_TYPE (rela->r_info))
4446 {
4447 case R_PARISC_IPLT:
4448 return reloc_class_plt;
4449 case R_PARISC_COPY:
4450 return reloc_class_copy;
4451 default:
4452 return reloc_class_normal;
4453 }
4454}
4455
30667bf3
AM
4456/* Finish up the dynamic sections. */
4457
b34976b6 4458static bfd_boolean
c39a58e6
AM
4459elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4460 struct bfd_link_info *info)
30667bf3
AM
4461{
4462 bfd *dynobj;
83c81bfe 4463 struct elf32_hppa_link_hash_table *htab;
30667bf3 4464 asection *sdyn;
894891db 4465 asection * sgot;
30667bf3 4466
83c81bfe 4467 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4468 if (htab == NULL)
4469 return FALSE;
4470
a63e02c7 4471 dynobj = htab->etab.dynobj;
30667bf3 4472
ce558b89 4473 sgot = htab->etab.sgot;
894891db
NC
4474 /* A broken linker script might have discarded the dynamic sections.
4475 Catch this here so that we do not seg-fault later on. */
4476 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4477 return FALSE;
4478
3d4d4302 4479 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4480
a63e02c7 4481 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4482 {
4483 Elf32_External_Dyn *dyncon, *dynconend;
4484
49e9d0d3
AM
4485 if (sdyn == NULL)
4486 abort ();
30667bf3
AM
4487
4488 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4489 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4490 for (; dyncon < dynconend; dyncon++)
edd21aca 4491 {
30667bf3
AM
4492 Elf_Internal_Dyn dyn;
4493 asection *s;
4494
4495 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4496
4497 switch (dyn.d_tag)
4498 {
4499 default:
3ac8354b 4500 continue;
30667bf3
AM
4501
4502 case DT_PLTGOT:
4503 /* Use PLTGOT to set the GOT register. */
4504 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4505 break;
4506
4507 case DT_JMPREL:
ce558b89 4508 s = htab->etab.srelplt;
30667bf3 4509 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4510 break;
4511
4512 case DT_PLTRELSZ:
ce558b89 4513 s = htab->etab.srelplt;
eea6121a 4514 dyn.d_un.d_val = s->size;
30667bf3
AM
4515 break;
4516 }
3ac8354b
AM
4517
4518 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4519 }
252b5132 4520 }
edd21aca 4521
894891db 4522 if (sgot != NULL && sgot->size != 0)
30667bf3 4523 {
74d1c347
AM
4524 /* Fill in the first entry in the global offset table.
4525 We use it to point to our dynamic section, if we have one. */
30667bf3 4526 bfd_put_32 (output_bfd,
c39a58e6 4527 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4528 sgot->contents);
30667bf3 4529
74d1c347 4530 /* The second entry is reserved for use by the dynamic linker. */
894891db 4531 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4532
30667bf3 4533 /* Set .got entry size. */
894891db 4534 elf_section_data (sgot->output_section)
74d1c347 4535 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4536 }
4537
ce558b89 4538 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
47d89dba 4539 {
f3c3938c
JDA
4540 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4541 plt stubs and as such the section does not hold a table of fixed-size
4542 entries. */
ce558b89 4543 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4544
83c81bfe 4545 if (htab->need_plt_stub)
47d89dba
AM
4546 {
4547 /* Set up the .plt stub. */
ce558b89
AM
4548 memcpy (htab->etab.splt->contents
4549 + htab->etab.splt->size - sizeof (plt_stub),
47d89dba
AM
4550 plt_stub, sizeof (plt_stub));
4551
ce558b89
AM
4552 if ((htab->etab.splt->output_offset
4553 + htab->etab.splt->output_section->vma
4554 + htab->etab.splt->size)
894891db
NC
4555 != (sgot->output_offset
4556 + sgot->output_section->vma))
47d89dba 4557 {
4eca0228 4558 _bfd_error_handler
47d89dba 4559 (_(".got section not immediately after .plt section"));
b34976b6 4560 return FALSE;
47d89dba
AM
4561 }
4562 }
4563 }
30667bf3 4564
b34976b6 4565 return TRUE;
30667bf3 4566}
252b5132 4567
30667bf3
AM
4568/* Called when writing out an object file to decide the type of a
4569 symbol. */
4570static int
c39a58e6 4571elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4572{
4573 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4574 return STT_PARISC_MILLI;
4575 else
4576 return type;
252b5132
RH
4577}
4578
4579/* Misc BFD support code. */
30667bf3
AM
4580#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4581#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4582#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4583#define elf_info_to_howto elf_hppa_info_to_howto
4584#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4585
252b5132 4586/* Stuff for the BFD linker. */
c46b7515 4587#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4588#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4589#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4590#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3 4591#define elf_backend_check_relocs elf32_hppa_check_relocs
c0e331c7 4592#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
30667bf3
AM
4593#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4594#define elf_backend_fake_sections elf_hppa_fake_sections
4595#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4596#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4597#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4598#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4599#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4600#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3 4601#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
edfc032f
AM
4602#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4603#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4604#define elf_backend_object_p elf32_hppa_object_p
4605#define elf_backend_final_write_processing elf_hppa_final_write_processing
4606#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4607#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4608#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4609
4610#define elf_backend_can_gc_sections 1
51b64d56 4611#define elf_backend_can_refcount 1
30667bf3
AM
4612#define elf_backend_plt_alignment 2
4613#define elf_backend_want_got_plt 0
4614#define elf_backend_plt_readonly 0
4615#define elf_backend_want_plt_sym 0
74d1c347 4616#define elf_backend_got_header_size 8
5474d94f 4617#define elf_backend_want_dynrelro 1
f0fe0e16 4618#define elf_backend_rela_normal 1
64f52338 4619#define elf_backend_dtrel_excludes_plt 1
a8c75b76 4620#define elf_backend_no_page_alias 1
252b5132 4621
6d00b590 4622#define TARGET_BIG_SYM hppa_elf32_vec
252b5132
RH
4623#define TARGET_BIG_NAME "elf32-hppa"
4624#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4625#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4626#define ELF_MACHINE_CODE EM_PARISC
4627#define ELF_MAXPAGESIZE 0x1000
d1036acb 4628#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4629#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4630
4631#include "elf32-target.h"
d952f17a
AM
4632
4633#undef TARGET_BIG_SYM
6d00b590 4634#define TARGET_BIG_SYM hppa_elf32_linux_vec
d952f17a 4635#undef TARGET_BIG_NAME
914dfb0f 4636#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4637#undef ELF_OSABI
9c55345c 4638#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4639#undef elf32_bed
4640#define elf32_bed elf32_hppa_linux_bed
d952f17a 4641
d952f17a 4642#include "elf32-target.h"
225247f0
JT
4643
4644#undef TARGET_BIG_SYM
6d00b590 4645#define TARGET_BIG_SYM hppa_elf32_nbsd_vec
225247f0 4646#undef TARGET_BIG_NAME
914dfb0f 4647#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4648#undef ELF_OSABI
4649#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4650#undef elf32_bed
4651#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4652
4653#include "elf32-target.h"
This page took 1.480056 seconds and 4 git commands to generate.