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PR22394, hppa-linux-ld fails to emit dynamic relocations
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CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
2571583a 2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
252b5132 3
30667bf3 4 Original code by
252b5132
RH
5 Center for Software Science
6 Department of Computer Science
7 University of Utah
30667bf3 8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9b52905e
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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
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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
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69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
30667bf3
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71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
3ee1d854
AM
74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 76 : bv %r0(%r21)
3ee1d854 77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
3ee1d854
AM
81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
3ee1d854
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88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
3ee1d854
AM
98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
875c0872
DA
118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
68ffbac6 125
875c0872
DA
126 elf32_hppa_link_hash_table "htab"
127 elf32_hppa_link_hash_entry "hh"
128
129 bfd_hash_table "btab"
130 bfd_hash_entry "bh"
68ffbac6 131
875c0872
DA
132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
134
135 elf32_hppa_dyn_reloc_entry "hdh"
68ffbac6 136
875c0872 137 Always remember to use GNU Coding Style. */
68ffbac6 138
30667bf3
AM
139#define PLT_ENTRY_SIZE 8
140#define GOT_ENTRY_SIZE 4
141#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
142
47d89dba
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143static const bfd_byte plt_stub[] =
144{
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148#define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153};
154
30667bf3 155/* Section name for stubs is the associated section name plus this
29942be8
NC
156 string. */
157#define STUB_SUFFIX ".stub"
30667bf3 158
98ceb8ce
AM
159/* We don't need to copy certain PC- or GP-relative dynamic relocs
160 into a shared object's dynamic section. All the relocs of the
161 limited class we are interested in, are absolute. */
162#ifndef RELATIVE_DYNRELOCS
163#define RELATIVE_DYNRELOCS 0
446f2863 164#define IS_ABSOLUTE_RELOC(r_type) 1
30667bf3
AM
165#endif
166
4fc8051d
AM
167/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 copying dynamic variables from a shared lib into an app's dynbss
169 section, and instead use a dynamic relocation to point into the
170 shared lib. */
171#define ELIMINATE_COPY_RELOCS 1
172
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NC
173enum elf32_hppa_stub_type
174{
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175 hppa_stub_long_branch,
176 hppa_stub_long_branch_shared,
177 hppa_stub_import,
178 hppa_stub_import_shared,
179 hppa_stub_export,
180 hppa_stub_none
181};
182
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NC
183struct elf32_hppa_stub_hash_entry
184{
edd21aca 185 /* Base hash table entry structure. */
a63e02c7 186 struct bfd_hash_entry bh_root;
252b5132 187
edd21aca
AM
188 /* The stub section. */
189 asection *stub_sec;
190
191 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 192 bfd_vma stub_offset;
252b5132
RH
193
194 /* Given the symbol's value and its section we can determine its final
195 value when building the stubs (so the stub knows where to jump. */
30667bf3 196 bfd_vma target_value;
252b5132 197 asection *target_section;
30667bf3
AM
198
199 enum elf32_hppa_stub_type stub_type;
200
201 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 202 struct elf32_hppa_link_hash_entry *hh;
30667bf3 203
25f72752
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204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
206 asection *id_sec;
252b5132
RH
207};
208
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209struct elf32_hppa_link_hash_entry
210{
a63e02c7 211 struct elf_link_hash_entry eh;
30667bf3
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212
213 /* A pointer to the most recently used stub hash entry against this
214 symbol. */
a63e02c7 215 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 216
30667bf3
AM
217 /* Used to count relocations for delayed sizing of relocation
218 sections. */
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NC
219 struct elf32_hppa_dyn_reloc_entry
220 {
30667bf3 221 /* Next relocation in the chain. */
a63e02c7 222 struct elf32_hppa_dyn_reloc_entry *hdh_next;
30667bf3 223
98ceb8ce
AM
224 /* The input section of the reloc. */
225 asection *sec;
30667bf3
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226
227 /* Number of relocs copied in this section. */
228 bfd_size_type count;
98ceb8ce
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229
230#if RELATIVE_DYNRELOCS
231 /* Number of relative relocs copied for the input section. */
232 bfd_size_type relative_count;
233#endif
234 } *dyn_relocs;
30667bf3 235
9b52905e
NC
236 enum
237 {
238 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
239 } tls_type;
240
74d1c347
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241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel:1;
30667bf3
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243};
244
9b52905e
NC
245struct elf32_hppa_link_hash_table
246{
252b5132 247 /* The main hash table. */
a63e02c7 248 struct elf_link_hash_table etab;
252b5132
RH
249
250 /* The stub hash table. */
a63e02c7 251 struct bfd_hash_table bstab;
252b5132 252
30667bf3
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253 /* Linker stub bfd. */
254 bfd *stub_bfd;
255
30667bf3 256 /* Linker call-backs. */
c39a58e6
AM
257 asection * (*add_stub_section) (const char *, asection *);
258 void (*layout_sections_again) (void);
30667bf3 259
25f72752
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260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
9b52905e
NC
262 struct map_stub
263 {
25f72752
AM
264 /* This is the section to which stubs in the group will be
265 attached. */
266 asection *link_sec;
267 /* The stub section. */
268 asection *stub_sec;
25f72752 269 } *stub_group;
30667bf3 270
b4655ea9
AM
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
7292b3ac 273 unsigned int top_index;
b4655ea9
AM
274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
c46b7515
AM
277 /* Used during a final link to store the base of the text and data
278 segments so that we can perform SEGREL relocations. */
279 bfd_vma text_segment_base;
280 bfd_vma data_segment_base;
281
47d89dba
AM
282 /* Whether we support multiple sub-spaces for shared libs. */
283 unsigned int multi_subspace:1;
284
067fa4a6 285 /* Flags set when various size branches are detected. Used to
47d89dba
AM
286 select suitable defaults for the stub group size. */
287 unsigned int has_12bit_branch:1;
288 unsigned int has_17bit_branch:1;
067fa4a6 289 unsigned int has_22bit_branch:1;
47d89dba
AM
290
291 /* Set if we need a .plt stub to support lazy dynamic linking. */
292 unsigned int need_plt_stub:1;
ec338859 293
87d72d41
AM
294 /* Small local sym cache. */
295 struct sym_cache sym_cache;
9b52905e
NC
296
297 /* Data for LDM relocations. */
298 union
299 {
300 bfd_signed_vma refcount;
301 bfd_vma offset;
302 } tls_ldm_got;
252b5132
RH
303};
304
30667bf3
AM
305/* Various hash macros and functions. */
306#define hppa_link_hash_table(p) \
4dfe6ac6
NC
307 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
308 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 309
875c0872
DA
310#define hppa_elf_hash_entry(ent) \
311 ((struct elf32_hppa_link_hash_entry *)(ent))
312
313#define hppa_stub_hash_entry(ent) \
314 ((struct elf32_hppa_stub_hash_entry *)(ent))
315
30667bf3
AM
316#define hppa_stub_hash_lookup(table, string, create, copy) \
317 ((struct elf32_hppa_stub_hash_entry *) \
318 bfd_hash_lookup ((table), (string), (create), (copy)))
319
9b52905e
NC
320#define hppa_elf_local_got_tls_type(abfd) \
321 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
322
323#define hh_name(hh) \
324 (hh ? hh->eh.root.root.string : "<undef>")
325
326#define eh_name(eh) \
327 (eh ? eh->root.root.string : "<undef>")
328
252b5132
RH
329/* Assorted hash table functions. */
330
331/* Initialize an entry in the stub hash table. */
332
333static struct bfd_hash_entry *
c39a58e6
AM
334stub_hash_newfunc (struct bfd_hash_entry *entry,
335 struct bfd_hash_table *table,
336 const char *string)
252b5132 337{
252b5132
RH
338 /* Allocate the structure if it has not already been allocated by a
339 subclass. */
ebe50bae 340 if (entry == NULL)
30667bf3 341 {
ebe50bae
AM
342 entry = bfd_hash_allocate (table,
343 sizeof (struct elf32_hppa_stub_hash_entry));
344 if (entry == NULL)
345 return entry;
30667bf3 346 }
252b5132
RH
347
348 /* Call the allocation method of the superclass. */
ebe50bae
AM
349 entry = bfd_hash_newfunc (entry, table, string);
350 if (entry != NULL)
252b5132 351 {
875c0872 352 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 353
252b5132 354 /* Initialize the local fields. */
875c0872
DA
355 hsh = hppa_stub_hash_entry (entry);
356 hsh->stub_sec = NULL;
357 hsh->stub_offset = 0;
358 hsh->target_value = 0;
359 hsh->target_section = NULL;
360 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 361 hsh->hh = NULL;
875c0872 362 hsh->id_sec = NULL;
30667bf3
AM
363 }
364
ebe50bae 365 return entry;
30667bf3
AM
366}
367
30667bf3
AM
368/* Initialize an entry in the link hash table. */
369
370static struct bfd_hash_entry *
c39a58e6
AM
371hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
372 struct bfd_hash_table *table,
373 const char *string)
30667bf3 374{
30667bf3
AM
375 /* Allocate the structure if it has not already been allocated by a
376 subclass. */
ebe50bae 377 if (entry == NULL)
30667bf3 378 {
ebe50bae
AM
379 entry = bfd_hash_allocate (table,
380 sizeof (struct elf32_hppa_link_hash_entry));
381 if (entry == NULL)
382 return entry;
30667bf3
AM
383 }
384
385 /* Call the allocation method of the superclass. */
ebe50bae
AM
386 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
387 if (entry != NULL)
30667bf3 388 {
875c0872 389 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 390
30667bf3 391 /* Initialize the local fields. */
875c0872 392 hh = hppa_elf_hash_entry (entry);
a63e02c7 393 hh->hsh_cache = NULL;
875c0872
DA
394 hh->dyn_relocs = NULL;
395 hh->plabel = 0;
9b52905e 396 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
397 }
398
ebe50bae 399 return entry;
252b5132
RH
400}
401
68faa637
AM
402/* Free the derived linker hash table. */
403
404static void
d495ab0d 405elf32_hppa_link_hash_table_free (bfd *obfd)
68faa637
AM
406{
407 struct elf32_hppa_link_hash_table *htab
d495ab0d 408 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
68faa637
AM
409
410 bfd_hash_table_free (&htab->bstab);
d495ab0d 411 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM
412}
413
252b5132
RH
414/* Create the derived linker hash table. The PA ELF port uses the derived
415 hash table to keep information specific to the PA ELF linker (without
416 using static variables). */
417
418static struct bfd_link_hash_table *
c39a58e6 419elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 420{
875c0872
DA
421 struct elf32_hppa_link_hash_table *htab;
422 bfd_size_type amt = sizeof (*htab);
252b5132 423
7bf52ea2 424 htab = bfd_zmalloc (amt);
875c0872 425 if (htab == NULL)
252b5132 426 return NULL;
edd21aca 427
66eb6687 428 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
429 sizeof (struct elf32_hppa_link_hash_entry),
430 HPPA32_ELF_DATA))
252b5132 431 {
875c0872 432 free (htab);
252b5132
RH
433 return NULL;
434 }
edd21aca
AM
435
436 /* Init the stub hash table too. */
66eb6687
AM
437 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
438 sizeof (struct elf32_hppa_stub_hash_entry)))
d495ab0d
AM
439 {
440 _bfd_elf_link_hash_table_free (abfd);
441 return NULL;
442 }
443 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
edd21aca 444
875c0872
DA
445 htab->text_segment_base = (bfd_vma) -1;
446 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 447 return &htab->etab.root;
252b5132
RH
448}
449
a464198b
AM
450/* Initialize the linker stubs BFD so that we can use it for linker
451 created dynamic sections. */
452
453void
454elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
455{
456 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
457
458 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
459 htab->etab.dynobj = abfd;
460}
461
30667bf3
AM
462/* Build a name for an entry in the stub hash table. */
463
edd21aca 464static char *
c39a58e6
AM
465hppa_stub_name (const asection *input_section,
466 const asection *sym_sec,
875c0872
DA
467 const struct elf32_hppa_link_hash_entry *hh,
468 const Elf_Internal_Rela *rela)
edd21aca
AM
469{
470 char *stub_name;
dc810e39 471 bfd_size_type len;
edd21aca 472
875c0872 473 if (hh)
30667bf3 474 {
9b52905e 475 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
476 stub_name = bfd_malloc (len);
477 if (stub_name != NULL)
9b52905e
NC
478 sprintf (stub_name, "%08x_%s+%x",
479 input_section->id & 0xffffffff,
480 hh_name (hh),
481 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
482 }
483 else
edd21aca 484 {
30667bf3
AM
485 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
486 stub_name = bfd_malloc (len);
487 if (stub_name != NULL)
9b52905e
NC
488 sprintf (stub_name, "%08x_%x:%x+%x",
489 input_section->id & 0xffffffff,
490 sym_sec->id & 0xffffffff,
491 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
492 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
493 }
494 return stub_name;
495}
252b5132 496
30667bf3
AM
497/* Look up an entry in the stub hash. Stub entries are cached because
498 creating the stub name takes a bit of time. */
499
500static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
501hppa_get_stub_entry (const asection *input_section,
502 const asection *sym_sec,
875c0872
DA
503 struct elf32_hppa_link_hash_entry *hh,
504 const Elf_Internal_Rela *rela,
c39a58e6 505 struct elf32_hppa_link_hash_table *htab)
252b5132 506{
a63e02c7 507 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
508 const asection *id_sec;
509
510 /* If this input section is part of a group of sections sharing one
511 stub section, then use the id of the first section in the group.
512 Stub names need to include a section id, as there may well be
513 more than one stub used to reach say, printf, and we need to
514 distinguish between them. */
83c81bfe 515 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 516
a63e02c7
DA
517 if (hh != NULL && hh->hsh_cache != NULL
518 && hh->hsh_cache->hh == hh
519 && hh->hsh_cache->id_sec == id_sec)
edd21aca 520 {
a63e02c7 521 hsh_entry = hh->hsh_cache;
30667bf3
AM
522 }
523 else
524 {
30667bf3 525 char *stub_name;
edd21aca 526
875c0872 527 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
528 if (stub_name == NULL)
529 return NULL;
edd21aca 530
a63e02c7 531 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 532 stub_name, FALSE, FALSE);
875c0872 533 if (hh != NULL)
a63e02c7 534 hh->hsh_cache = hsh_entry;
30667bf3
AM
535
536 free (stub_name);
edd21aca 537 }
30667bf3 538
a63e02c7 539 return hsh_entry;
30667bf3
AM
540}
541
30667bf3
AM
542/* Add a new stub entry to the stub hash. Not all fields of the new
543 stub entry are initialised. */
544
545static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
546hppa_add_stub (const char *stub_name,
547 asection *section,
548 struct elf32_hppa_link_hash_table *htab)
30667bf3 549{
25f72752 550 asection *link_sec;
30667bf3 551 asection *stub_sec;
875c0872 552 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 553
83c81bfe
AM
554 link_sec = htab->stub_group[section->id].link_sec;
555 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 556 if (stub_sec == NULL)
edd21aca 557 {
83c81bfe 558 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
559 if (stub_sec == NULL)
560 {
d4c88bbb 561 size_t namelen;
dc810e39 562 bfd_size_type len;
30667bf3
AM
563 char *s_name;
564
d4c88bbb
AM
565 namelen = strlen (link_sec->name);
566 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 567 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
568 if (s_name == NULL)
569 return NULL;
570
d4c88bbb
AM
571 memcpy (s_name, link_sec->name, namelen);
572 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 573 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
574 if (stub_sec == NULL)
575 return NULL;
83c81bfe 576 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 577 }
83c81bfe 578 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 579 }
252b5132 580
30667bf3 581 /* Enter this entry into the linker stub hash table. */
a63e02c7 582 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 583 TRUE, FALSE);
875c0872 584 if (hsh == NULL)
30667bf3 585 {
695344c0 586 /* xgettext:c-format */
4eca0228
AM
587 _bfd_error_handler (_("%B: cannot create stub entry %s"),
588 section->owner, stub_name);
30667bf3 589 return NULL;
edd21aca
AM
590 }
591
875c0872
DA
592 hsh->stub_sec = stub_sec;
593 hsh->stub_offset = 0;
594 hsh->id_sec = link_sec;
595 return hsh;
edd21aca
AM
596}
597
30667bf3
AM
598/* Determine the type of stub needed, if any, for a call. */
599
600static enum elf32_hppa_stub_type
c39a58e6 601hppa_type_of_stub (asection *input_sec,
875c0872
DA
602 const Elf_Internal_Rela *rela,
603 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
604 bfd_vma destination,
605 struct bfd_link_info *info)
edd21aca 606{
edd21aca 607 bfd_vma location;
30667bf3
AM
608 bfd_vma branch_offset;
609 bfd_vma max_branch_offset;
610 unsigned int r_type;
611
875c0872 612 if (hh != NULL
a63e02c7
DA
613 && hh->eh.plt.offset != (bfd_vma) -1
614 && hh->eh.dynindx != -1
875c0872 615 && !hh->plabel
0e1862bb 616 && (bfd_link_pic (info)
a63e02c7
DA
617 || !hh->eh.def_regular
618 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 619 {
067fa4a6
AM
620 /* We need an import stub. Decide between hppa_stub_import
621 and hppa_stub_import_shared later. */
30667bf3
AM
622 return hppa_stub_import;
623 }
edd21aca 624
30667bf3
AM
625 /* Determine where the call point is. */
626 location = (input_sec->output_offset
627 + input_sec->output_section->vma
875c0872 628 + rela->r_offset);
edd21aca 629
30667bf3 630 branch_offset = destination - location - 8;
875c0872 631 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 632
30667bf3
AM
633 /* Determine if a long branch stub is needed. parisc branch offsets
634 are relative to the second instruction past the branch, ie. +8
635 bytes on from the branch instruction location. The offset is
636 signed and counts in units of 4 bytes. */
637 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
638 max_branch_offset = (1 << (17 - 1)) << 2;
639
30667bf3 640 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
641 max_branch_offset = (1 << (12 - 1)) << 2;
642
25f72752 643 else /* R_PARISC_PCREL22F. */
9b52905e 644 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 645
30667bf3 646 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
647 return hppa_stub_long_branch;
648
30667bf3
AM
649 return hppa_stub_none;
650}
edd21aca 651
30667bf3
AM
652/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
653 IN_ARG contains the link info pointer. */
edd21aca 654
30667bf3
AM
655#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
656#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 657
30667bf3 658#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 659#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 660#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 661
3ee1d854
AM
662#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
663#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 664#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 665#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 666
3ee1d854
AM
667#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
668#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 669
30667bf3
AM
670#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
671#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
672#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
673#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 674
067fa4a6 675#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
676#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
677#define NOP 0x08000240 /* nop */
678#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
679#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
680#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 681
30667bf3
AM
682#ifndef R19_STUBS
683#define R19_STUBS 1
684#endif
edd21aca 685
30667bf3
AM
686#if R19_STUBS
687#define LDW_R1_DLT LDW_R1_R19
688#else
689#define LDW_R1_DLT LDW_R1_DP
690#endif
edd21aca 691
b34976b6 692static bfd_boolean
875c0872 693hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 694{
875c0872 695 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 696 struct bfd_link_info *info;
83c81bfe 697 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
698 asection *stub_sec;
699 bfd *stub_bfd;
700 bfd_byte *loc;
701 bfd_vma sym_value;
74d1c347 702 bfd_vma insn;
8dea1268 703 bfd_vma off;
74d1c347 704 int val;
30667bf3 705 int size;
edd21aca 706
30667bf3 707 /* Massage our args to the form they really have. */
875c0872
DA
708 hsh = hppa_stub_hash_entry (bh);
709 info = (struct bfd_link_info *)in_arg;
30667bf3 710
83c81bfe 711 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
712 if (htab == NULL)
713 return FALSE;
714
875c0872 715 stub_sec = hsh->stub_sec;
edd21aca 716
30667bf3 717 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
718 hsh->stub_offset = stub_sec->size;
719 loc = stub_sec->contents + hsh->stub_offset;
252b5132 720
30667bf3
AM
721 stub_bfd = stub_sec->owner;
722
875c0872 723 switch (hsh->stub_type)
30667bf3
AM
724 {
725 case hppa_stub_long_branch:
726 /* Create the long branch. A long branch is formed with "ldil"
727 loading the upper bits of the target address into a register,
728 then branching with "be" which adds in the lower bits.
729 The "be" has its delay slot nullified. */
875c0872
DA
730 sym_value = (hsh->target_value
731 + hsh->target_section->output_offset
732 + hsh->target_section->output_section->vma);
30667bf3 733
c39a58e6 734 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 735 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
736 bfd_put_32 (stub_bfd, insn, loc);
737
c39a58e6 738 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 739 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
740 bfd_put_32 (stub_bfd, insn, loc + 4);
741
30667bf3 742 size = 8;
edd21aca
AM
743 break;
744
30667bf3
AM
745 case hppa_stub_long_branch_shared:
746 /* Branches are relative. This is where we are going to. */
875c0872
DA
747 sym_value = (hsh->target_value
748 + hsh->target_section->output_offset
749 + hsh->target_section->output_section->vma);
30667bf3
AM
750
751 /* And this is where we are coming from, more or less. */
875c0872 752 sym_value -= (hsh->stub_offset
30667bf3
AM
753 + stub_sec->output_offset
754 + stub_sec->output_section->vma);
755
74d1c347 756 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 757 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 758 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
759 bfd_put_32 (stub_bfd, insn, loc + 4);
760
47d89dba 761 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 762 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
763 bfd_put_32 (stub_bfd, insn, loc + 8);
764 size = 12;
765 break;
edd21aca 766
30667bf3
AM
767 case hppa_stub_import:
768 case hppa_stub_import_shared:
a63e02c7 769 off = hsh->hh->eh.plt.offset;
8dea1268 770 if (off >= (bfd_vma) -2)
49e9d0d3 771 abort ();
8dea1268
AM
772
773 off &= ~ (bfd_vma) 1;
774 sym_value = (off
ce558b89
AM
775 + htab->etab.splt->output_offset
776 + htab->etab.splt->output_section->vma
777 - elf_gp (htab->etab.splt->output_section->owner));
30667bf3
AM
778
779 insn = ADDIL_DP;
780#if R19_STUBS
875c0872 781 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
782 insn = ADDIL_R19;
783#endif
c39a58e6 784 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 785 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 786 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 787
47d89dba
AM
788 /* It is critical to use lrsel/rrsel here because we are using
789 two different offsets (+0 and +4) from sym_value. If we use
790 lsel/rsel then with unfortunate sym_values we will round
791 sym_value+4 up to the next 2k block leading to a mis-match
792 between the lsel and rsel value. */
c39a58e6 793 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 794 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 795 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 796
83c81bfe 797 if (htab->multi_subspace)
30667bf3 798 {
47d89dba 799 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 800 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 801 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 802
74d1c347
AM
803 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
804 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
805 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
806 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 807
30667bf3
AM
808 size = 28;
809 }
810 else
811 {
74d1c347 812 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 813 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 814 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 815 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 816
30667bf3
AM
817 size = 16;
818 }
252b5132 819
30667bf3 820 break;
252b5132 821
30667bf3
AM
822 case hppa_stub_export:
823 /* Branches are relative. This is where we are going to. */
875c0872
DA
824 sym_value = (hsh->target_value
825 + hsh->target_section->output_offset
826 + hsh->target_section->output_section->vma);
252b5132 827
30667bf3 828 /* And this is where we are coming from. */
875c0872 829 sym_value -= (hsh->stub_offset
30667bf3
AM
830 + stub_sec->output_offset
831 + stub_sec->output_section->vma);
edd21aca 832
067fa4a6
AM
833 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
834 && (!htab->has_22bit_branch
835 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 836 {
4eca0228 837 _bfd_error_handler
695344c0 838 /* xgettext:c-format */
d42c267e 839 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 840 hsh->target_section->owner,
d003868e 841 stub_sec,
d42c267e 842 hsh->stub_offset,
a63e02c7 843 hsh->bh_root.string);
30667bf3 844 bfd_set_error (bfd_error_bad_value);
b34976b6 845 return FALSE;
252b5132 846 }
30667bf3 847
74d1c347 848 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
849 if (!htab->has_22bit_branch)
850 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
851 else
852 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
853 bfd_put_32 (stub_bfd, insn, loc);
854
74d1c347
AM
855 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
856 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
857 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
858 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
859 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
860
861 /* Point the function symbol at the stub. */
a63e02c7
DA
862 hsh->hh->eh.root.u.def.section = stub_sec;
863 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
864
865 size = 24;
866 break;
867
868 default:
869 BFD_FAIL ();
b34976b6 870 return FALSE;
252b5132
RH
871 }
872
eea6121a 873 stub_sec->size += size;
b34976b6 874 return TRUE;
252b5132
RH
875}
876
30667bf3
AM
877#undef LDIL_R1
878#undef BE_SR4_R1
879#undef BL_R1
880#undef ADDIL_R1
881#undef DEPI_R1
30667bf3
AM
882#undef LDW_R1_R21
883#undef LDW_R1_DLT
884#undef LDW_R1_R19
885#undef ADDIL_R19
886#undef LDW_R1_DP
887#undef LDSID_R21_R1
888#undef MTSP_R1
889#undef BE_SR0_R21
890#undef STW_RP
891#undef BV_R0_R21
892#undef BL_RP
893#undef NOP
894#undef LDW_RP
895#undef LDSID_RP_R1
896#undef BE_SR0_RP
252b5132 897
30667bf3
AM
898/* As above, but don't actually build the stub. Just bump offset so
899 we know stub section sizes. */
900
b34976b6 901static bfd_boolean
875c0872 902hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 903{
875c0872 904 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 905 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
906 int size;
907
908 /* Massage our args to the form they really have. */
875c0872 909 hsh = hppa_stub_hash_entry (bh);
c39a58e6 910 htab = in_arg;
30667bf3 911
875c0872 912 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 913 size = 8;
875c0872 914 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 915 size = 12;
875c0872 916 else if (hsh->stub_type == hppa_stub_export)
30667bf3 917 size = 24;
74d1c347 918 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 919 {
83c81bfe 920 if (htab->multi_subspace)
30667bf3
AM
921 size = 28;
922 else
923 size = 16;
924 }
252b5132 925
875c0872 926 hsh->stub_sec->size += size;
b34976b6 927 return TRUE;
30667bf3 928}
252b5132 929
30667bf3
AM
930/* Return nonzero if ABFD represents an HPPA ELF32 file.
931 Additionally we set the default architecture and machine. */
932
b34976b6 933static bfd_boolean
c39a58e6 934elf32_hppa_object_p (bfd *abfd)
30667bf3 935{
24a5e751
L
936 Elf_Internal_Ehdr * i_ehdrp;
937 unsigned int flags;
252b5132 938
24a5e751
L
939 i_ehdrp = elf_elfheader (abfd);
940 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
941 {
9c55345c 942 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 943 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 944 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 945 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 946 return FALSE;
24a5e751 947 }
225247f0
JT
948 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
949 {
950 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
951 but the kernel produces corefiles with OSABI=SysV. */
952 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
953 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
954 return FALSE;
955 }
24a5e751
L
956 else
957 {
958 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 959 return FALSE;
24a5e751
L
960 }
961
962 flags = i_ehdrp->e_flags;
30667bf3
AM
963 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
964 {
965 case EFA_PARISC_1_0:
966 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
967 case EFA_PARISC_1_1:
968 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
969 case EFA_PARISC_2_0:
970 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
971 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
973 }
b34976b6 974 return TRUE;
252b5132
RH
975}
976
30667bf3
AM
977/* Create the .plt and .got sections, and set up our hash table
978 short-cuts to various dynamic sections. */
979
b34976b6 980static bfd_boolean
c39a58e6 981elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 982{
83c81bfe 983 struct elf32_hppa_link_hash_table *htab;
875c0872 984 struct elf_link_hash_entry *eh;
edd21aca 985
30667bf3 986 /* Don't try to create the .plt and .got twice. */
83c81bfe 987 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
988 if (htab == NULL)
989 return FALSE;
ce558b89 990 if (htab->etab.splt != NULL)
b34976b6 991 return TRUE;
edd21aca 992
30667bf3
AM
993 /* Call the generic code to do most of the work. */
994 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 995 return FALSE;
252b5132 996
b18e2ae5
AM
997 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
999 eh = elf_hash_table (info)->hgot;
1000 eh->forced_local = 0;
1001 eh->other = STV_DEFAULT;
1002 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1003}
1004
ebe50bae
AM
1005/* Copy the extra info we tack onto an elf_link_hash_entry. */
1006
51b64d56 1007static void
fcfa13d2 1008elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1009 struct elf_link_hash_entry *eh_dir,
1010 struct elf_link_hash_entry *eh_ind)
ebe50bae 1011{
875c0872 1012 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1013
875c0872
DA
1014 hh_dir = hppa_elf_hash_entry (eh_dir);
1015 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1016
875c0872 1017 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1018 {
875c0872 1019 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1020 {
875c0872
DA
1021 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1022 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1023
fcfa13d2 1024 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1025 list. Merge any entries against the same section. */
875c0872 1026 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1027 {
875c0872 1028 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1029
fcfa13d2
AM
1030 for (hdh_q = hh_dir->dyn_relocs;
1031 hdh_q != NULL;
1032 hdh_q = hdh_q->hdh_next)
875c0872 1033 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1034 {
1035#if RELATIVE_DYNRELOCS
875c0872 1036 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1037#endif
875c0872 1038 hdh_q->count += hdh_p->count;
a63e02c7 1039 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1040 break;
1041 }
875c0872 1042 if (hdh_q == NULL)
a63e02c7 1043 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1044 }
875c0872 1045 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1046 }
1047
875c0872
DA
1048 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1049 hh_ind->dyn_relocs = NULL;
ebe50bae 1050 }
ebe50bae 1051
4fc8051d 1052 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1053 && eh_ind->root.type != bfd_link_hash_indirect
1054 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1055 {
1056 /* If called to transfer flags for a weakdef during processing
1057 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM
1059 if (eh_dir->versioned != versioned_hidden)
1060 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
875c0872
DA
1061 eh_dir->ref_regular |= eh_ind->ref_regular;
1062 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1063 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1064 }
4fc8051d 1065 else
9b52905e 1066 {
e81830c5
AM
1067 if (eh_ind->root.type == bfd_link_hash_indirect)
1068 {
1069 hh_dir->plabel |= hh_ind->plabel;
1070 hh_dir->tls_type |= hh_ind->tls_type;
1071 hh_ind->tls_type = GOT_UNKNOWN;
1072 }
9b52905e
NC
1073
1074 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1075 }
1076}
1077
1078static int
1079elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1080 int r_type, int is_local ATTRIBUTE_UNUSED)
1081{
1082 /* For now we don't support linker optimizations. */
1083 return r_type;
ebe50bae
AM
1084}
1085
d45b7d74
DA
1086/* Return a pointer to the local GOT, PLT and TLS reference counts
1087 for ABFD. Returns NULL if the storage allocation fails. */
1088
1089static bfd_signed_vma *
1090hppa32_elf_local_refcounts (bfd *abfd)
1091{
1092 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1093 bfd_signed_vma *local_refcounts;
68ffbac6 1094
d45b7d74
DA
1095 local_refcounts = elf_local_got_refcounts (abfd);
1096 if (local_refcounts == NULL)
1097 {
1098 bfd_size_type size;
1099
1100 /* Allocate space for local GOT and PLT reference
1101 counts. Done this way to save polluting elf_obj_tdata
1102 with another target specific pointer. */
1103 size = symtab_hdr->sh_info;
1104 size *= 2 * sizeof (bfd_signed_vma);
1105 /* Add in space to store the local GOT TLS types. */
1106 size += symtab_hdr->sh_info;
1107 local_refcounts = bfd_zalloc (abfd, size);
1108 if (local_refcounts == NULL)
1109 return NULL;
1110 elf_local_got_refcounts (abfd) = local_refcounts;
1111 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1112 symtab_hdr->sh_info);
1113 }
1114 return local_refcounts;
1115}
1116
1117
30667bf3 1118/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1119 calculate needed space in the global offset table, procedure linkage
1120 table, and dynamic reloc sections. At this point we haven't
1121 necessarily read all the input files. */
252b5132 1122
b34976b6 1123static bfd_boolean
c39a58e6
AM
1124elf32_hppa_check_relocs (bfd *abfd,
1125 struct bfd_link_info *info,
1126 asection *sec,
1127 const Elf_Internal_Rela *relocs)
252b5132 1128{
30667bf3 1129 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1130 struct elf_link_hash_entry **eh_syms;
1131 const Elf_Internal_Rela *rela;
1132 const Elf_Internal_Rela *rela_end;
83c81bfe 1133 struct elf32_hppa_link_hash_table *htab;
30667bf3 1134 asection *sreloc;
9b52905e 1135 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1136
0e1862bb 1137 if (bfd_link_relocatable (info))
b34976b6 1138 return TRUE;
30667bf3 1139
83c81bfe 1140 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1141 if (htab == NULL)
1142 return FALSE;
30667bf3 1143 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1144 eh_syms = elf_sym_hashes (abfd);
30667bf3 1145 sreloc = NULL;
30667bf3 1146
875c0872
DA
1147 rela_end = relocs + sec->reloc_count;
1148 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1149 {
1150 enum {
1151 NEED_GOT = 1,
1152 NEED_PLT = 2,
1153 NEED_DYNREL = 4,
98ceb8ce 1154 PLT_PLABEL = 8
30667bf3 1155 };
edd21aca 1156
30667bf3 1157 unsigned int r_symndx, r_type;
875c0872
DA
1158 struct elf32_hppa_link_hash_entry *hh;
1159 int need_entry = 0;
252b5132 1160
875c0872 1161 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1162
30667bf3 1163 if (r_symndx < symtab_hdr->sh_info)
875c0872 1164 hh = NULL;
30667bf3 1165 else
f7c5057a 1166 {
875c0872 1167 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1168 while (hh->eh.root.type == bfd_link_hash_indirect
1169 || hh->eh.root.type == bfd_link_hash_warning)
1170 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
81fbe831
AM
1171
1172 /* PR15323, ref flags aren't set for references in the same
1173 object. */
bc4e12de 1174 hh->eh.root.non_ir_ref_regular = 1;
f7c5057a 1175 }
252b5132 1176
875c0872 1177 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1178 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1179
30667bf3
AM
1180 switch (r_type)
1181 {
1182 case R_PARISC_DLTIND14F:
1183 case R_PARISC_DLTIND14R:
1184 case R_PARISC_DLTIND21L:
1185 /* This symbol requires a global offset table entry. */
1186 need_entry = NEED_GOT;
30667bf3
AM
1187 break;
1188
1189 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1190 case R_PARISC_PLABEL21L:
1191 case R_PARISC_PLABEL32:
74d1c347 1192 /* If the addend is non-zero, we break badly. */
875c0872 1193 if (rela->r_addend != 0)
49e9d0d3 1194 abort ();
74d1c347
AM
1195
1196 /* If we are creating a shared library, then we need to
1197 create a PLT entry for all PLABELs, because PLABELs with
1198 local symbols may be passed via a pointer to another
1199 object. Additionally, output a dynamic relocation
4dc86686 1200 pointing to the PLT entry.
875c0872 1201
4dc86686
AM
1202 For executables, the original 32-bit ABI allowed two
1203 different styles of PLABELs (function pointers): For
1204 global functions, the PLABEL word points into the .plt
1205 two bytes past a (function address, gp) pair, and for
1206 local functions the PLABEL points directly at the
1207 function. The magic +2 for the first type allows us to
1208 differentiate between the two. As you can imagine, this
1209 is a real pain when it comes to generating code to call
1210 functions indirectly or to compare function pointers.
1211 We avoid the mess by always pointing a PLABEL into the
1212 .plt, even for local functions. */
127e8e9f
AM
1213 need_entry = PLT_PLABEL | NEED_PLT;
1214 if (bfd_link_pic (info))
1215 need_entry |= NEED_DYNREL;
30667bf3
AM
1216 break;
1217
1218 case R_PARISC_PCREL12F:
83c81bfe 1219 htab->has_12bit_branch = 1;
067fa4a6
AM
1220 goto branch_common;
1221
30667bf3
AM
1222 case R_PARISC_PCREL17C:
1223 case R_PARISC_PCREL17F:
83c81bfe 1224 htab->has_17bit_branch = 1;
067fa4a6
AM
1225 goto branch_common;
1226
30667bf3 1227 case R_PARISC_PCREL22F:
067fa4a6
AM
1228 htab->has_22bit_branch = 1;
1229 branch_common:
47d89dba
AM
1230 /* Function calls might need to go through the .plt, and
1231 might require long branch stubs. */
875c0872 1232 if (hh == NULL)
30667bf3
AM
1233 {
1234 /* We know local syms won't need a .plt entry, and if
1235 they need a long branch stub we can't guarantee that
1236 we can reach the stub. So just flag an error later
1237 if we're doing a shared link and find we need a long
1238 branch stub. */
1239 continue;
1240 }
1241 else
1242 {
1243 /* Global symbols will need a .plt entry if they remain
1244 global, and in most cases won't need a long branch
1245 stub. Unfortunately, we have to cater for the case
1246 where a symbol is forced local by versioning, or due
1247 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1248 need_entry = NEED_PLT;
a63e02c7 1249 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1250 need_entry = 0;
30667bf3
AM
1251 }
1252 break;
1253
36751eee 1254 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1255 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1256 case R_PARISC_PCREL14F: /* PC relative load/store. */
1257 case R_PARISC_PCREL14R:
1258 case R_PARISC_PCREL17R: /* External branches. */
1259 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1260 case R_PARISC_PCREL32:
30667bf3
AM
1261 /* We don't need to propagate the relocation if linking a
1262 shared object since these are section relative. */
1263 continue;
1264
1265 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1266 case R_PARISC_DPREL14R:
1267 case R_PARISC_DPREL21L:
0e1862bb 1268 if (bfd_link_pic (info))
30667bf3 1269 {
4eca0228 1270 _bfd_error_handler
695344c0 1271 /* xgettext:c-format */
d003868e
AM
1272 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1273 abfd,
30667bf3
AM
1274 elf_hppa_howto_table[r_type].name);
1275 bfd_set_error (bfd_error_bad_value);
b34976b6 1276 return FALSE;
30667bf3
AM
1277 }
1278 /* Fall through. */
1279
1280 case R_PARISC_DIR17F: /* Used for external branches. */
1281 case R_PARISC_DIR17R:
47d89dba
AM
1282 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1283 case R_PARISC_DIR14R:
30667bf3 1284 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1285 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1286 /* We may want to output a dynamic relocation later. */
1287 need_entry = NEED_DYNREL;
1288 break;
1289
1290 /* This relocation describes the C++ object vtable hierarchy.
1291 Reconstruct it for later use during GC. */
1292 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1293 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1294 return FALSE;
30667bf3
AM
1295 continue;
1296
1297 /* This relocation describes which C++ vtable entries are actually
1298 used. Record for later use during GC. */
1299 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1300 BFD_ASSERT (hh != NULL);
1301 if (hh != NULL
1302 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1303 return FALSE;
30667bf3
AM
1304 continue;
1305
9b52905e
NC
1306 case R_PARISC_TLS_GD21L:
1307 case R_PARISC_TLS_GD14R:
1308 case R_PARISC_TLS_LDM21L:
1309 case R_PARISC_TLS_LDM14R:
1310 need_entry = NEED_GOT;
1311 break;
1312
1313 case R_PARISC_TLS_IE21L:
1314 case R_PARISC_TLS_IE14R:
0e1862bb 1315 if (bfd_link_pic (info))
9b52905e
NC
1316 info->flags |= DF_STATIC_TLS;
1317 need_entry = NEED_GOT;
1318 break;
1319
30667bf3
AM
1320 default:
1321 continue;
1322 }
1323
1324 /* Now carry out our orders. */
1325 if (need_entry & NEED_GOT)
1326 {
9b52905e
NC
1327 switch (r_type)
1328 {
1329 default:
1330 tls_type = GOT_NORMAL;
1331 break;
1332 case R_PARISC_TLS_GD21L:
1333 case R_PARISC_TLS_GD14R:
1334 tls_type |= GOT_TLS_GD;
1335 break;
1336 case R_PARISC_TLS_LDM21L:
1337 case R_PARISC_TLS_LDM14R:
1338 tls_type |= GOT_TLS_LDM;
1339 break;
1340 case R_PARISC_TLS_IE21L:
1341 case R_PARISC_TLS_IE14R:
1342 tls_type |= GOT_TLS_IE;
1343 break;
1344 }
1345
30667bf3 1346 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1347 relocation for this entry. */
ce558b89 1348 if (htab->etab.sgot == NULL)
30667bf3 1349 {
a63e02c7 1350 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1351 return FALSE;
30667bf3
AM
1352 }
1353
9b52905e
NC
1354 if (r_type == R_PARISC_TLS_LDM21L
1355 || r_type == R_PARISC_TLS_LDM14R)
4dfe6ac6 1356 htab->tls_ldm_got.refcount += 1;
30667bf3
AM
1357 else
1358 {
9b52905e
NC
1359 if (hh != NULL)
1360 {
1361 hh->eh.got.refcount += 1;
1362 old_tls_type = hh->tls_type;
1363 }
1364 else
1365 {
1366 bfd_signed_vma *local_got_refcounts;
68ffbac6 1367
9b52905e 1368 /* This is a global offset table entry for a local symbol. */
d45b7d74 1369 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
9b52905e 1370 if (local_got_refcounts == NULL)
d45b7d74 1371 return FALSE;
9b52905e
NC
1372 local_got_refcounts[r_symndx] += 1;
1373
1374 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1375 }
1376
1377 tls_type |= old_tls_type;
1378
1379 if (old_tls_type != tls_type)
1380 {
1381 if (hh != NULL)
1382 hh->tls_type = tls_type;
1383 else
1384 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1385 }
1386
30667bf3
AM
1387 }
1388 }
1389
1390 if (need_entry & NEED_PLT)
1391 {
1392 /* If we are creating a shared library, and this is a reloc
1393 against a weak symbol or a global symbol in a dynamic
1394 object, then we will be creating an import stub and a
1395 .plt entry for the symbol. Similarly, on a normal link
1396 to symbols defined in a dynamic object we'll need the
1397 import stub and a .plt entry. We don't know yet whether
1398 the symbol is defined or not, so make an entry anyway and
1399 clean up later in adjust_dynamic_symbol. */
1400 if ((sec->flags & SEC_ALLOC) != 0)
1401 {
875c0872 1402 if (hh != NULL)
30667bf3 1403 {
a63e02c7
DA
1404 hh->eh.needs_plt = 1;
1405 hh->eh.plt.refcount += 1;
74d1c347 1406
36605136
AM
1407 /* If this .plt entry is for a plabel, mark it so
1408 that adjust_dynamic_symbol will keep the entry
1409 even if it appears to be local. */
74d1c347 1410 if (need_entry & PLT_PLABEL)
875c0872 1411 hh->plabel = 1;
74d1c347
AM
1412 }
1413 else if (need_entry & PLT_PLABEL)
1414 {
3ac8354b 1415 bfd_signed_vma *local_got_refcounts;
68fb2e56 1416 bfd_signed_vma *local_plt_refcounts;
74d1c347 1417
d45b7d74 1418 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1419 if (local_got_refcounts == NULL)
d45b7d74 1420 return FALSE;
68fb2e56
AM
1421 local_plt_refcounts = (local_got_refcounts
1422 + symtab_hdr->sh_info);
ebe50bae 1423 local_plt_refcounts[r_symndx] += 1;
30667bf3 1424 }
30667bf3
AM
1425 }
1426 }
1427
d336fa6d
AM
1428 if ((need_entry & NEED_DYNREL) != 0
1429 && (sec->flags & SEC_ALLOC) != 0)
30667bf3
AM
1430 {
1431 /* Flag this symbol as having a non-got, non-plt reference
1432 so that we generate copy relocs if it turns out to be
1433 dynamic. */
0e1862bb 1434 if (hh != NULL && !bfd_link_pic (info))
a63e02c7 1435 hh->eh.non_got_ref = 1;
30667bf3
AM
1436
1437 /* If we are creating a shared library then we need to copy
1438 the reloc into the shared library. However, if we are
1439 linking with -Bsymbolic, we need only copy absolute
1440 relocs or relocs against symbols that are not defined in
1441 an object we are including in the link. PC- or DP- or
1442 DLT-relative relocs against any local sym or global sym
1443 with DEF_REGULAR set, can be discarded. At this point we
1444 have not seen all the input files, so it is possible that
1445 DEF_REGULAR is not set now but will be set later (it is
1446 never cleared). We account for that possibility below by
98ceb8ce 1447 storing information in the dyn_relocs field of the
30667bf3
AM
1448 hash table entry.
1449
1450 A similar situation to the -Bsymbolic case occurs when
1451 creating shared libraries and symbol visibility changes
1452 render the symbol local.
1453
1454 As it turns out, all the relocs we will be creating here
1455 are absolute, so we cannot remove them on -Bsymbolic
1456 links or visibility changes anyway. A STUB_REL reloc
1457 is absolute too, as in that case it is the reloc in the
1458 stub we will be creating, rather than copying the PCREL
56882138
AM
1459 reloc in the branch.
1460
1461 If on the other hand, we are creating an executable, we
1462 may need to keep relocations for symbols satisfied by a
1463 dynamic library if we manage to avoid copy relocs for the
1464 symbol. */
0e1862bb 1465 if ((bfd_link_pic (info)
446f2863 1466 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1467 || (hh != NULL
a496fbc8 1468 && (!SYMBOLIC_BIND (info, &hh->eh)
a63e02c7
DA
1469 || hh->eh.root.type == bfd_link_hash_defweak
1470 || !hh->eh.def_regular))))
4fc8051d 1471 || (ELIMINATE_COPY_RELOCS
0e1862bb 1472 && !bfd_link_pic (info)
875c0872 1473 && hh != NULL
a63e02c7
DA
1474 && (hh->eh.root.type == bfd_link_hash_defweak
1475 || !hh->eh.def_regular)))
30667bf3 1476 {
875c0872
DA
1477 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1478 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1479
30667bf3
AM
1480 /* Create a reloc section in dynobj and make room for
1481 this reloc. */
98ceb8ce 1482 if (sreloc == NULL)
30667bf3 1483 {
83bac4b0
NC
1484 sreloc = _bfd_elf_make_dynamic_reloc_section
1485 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1486
98ceb8ce 1487 if (sreloc == NULL)
30667bf3 1488 {
83bac4b0
NC
1489 bfd_set_error (bfd_error_bad_value);
1490 return FALSE;
30667bf3 1491 }
30667bf3
AM
1492 }
1493
98ceb8ce
AM
1494 /* If this is a global symbol, we count the number of
1495 relocations we need for this symbol. */
875c0872 1496 if (hh != NULL)
30667bf3 1497 {
875c0872 1498 hdh_head = &hh->dyn_relocs;
ec338859
AM
1499 }
1500 else
1501 {
1502 /* Track dynamic relocs needed for local syms too.
1503 We really need local syms available to do this
1504 easily. Oh well. */
875c0872 1505 asection *sr;
6edfbbad 1506 void *vpp;
87d72d41 1507 Elf_Internal_Sym *isym;
6edfbbad 1508
87d72d41
AM
1509 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1510 abfd, r_symndx);
1511 if (isym == NULL)
b34976b6 1512 return FALSE;
30667bf3 1513
87d72d41
AM
1514 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1515 if (sr == NULL)
1516 sr = sec;
1517
6edfbbad
DJ
1518 vpp = &elf_section_data (sr)->local_dynrel;
1519 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1520 }
1521
875c0872
DA
1522 hdh_p = *hdh_head;
1523 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1524 {
a63e02c7 1525 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1526 if (hdh_p == NULL)
b34976b6 1527 return FALSE;
a63e02c7 1528 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1529 *hdh_head = hdh_p;
1530 hdh_p->sec = sec;
1531 hdh_p->count = 0;
98ceb8ce 1532#if RELATIVE_DYNRELOCS
875c0872 1533 hdh_p->relative_count = 0;
98ceb8ce 1534#endif
ec338859 1535 }
98ceb8ce 1536
875c0872 1537 hdh_p->count += 1;
98ceb8ce 1538#if RELATIVE_DYNRELOCS
ec338859 1539 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1540 hdh_p->relative_count += 1;
98ceb8ce 1541#endif
30667bf3
AM
1542 }
1543 }
1544 }
edd21aca 1545
b34976b6 1546 return TRUE;
edd21aca
AM
1547}
1548
30667bf3
AM
1549/* Return the section that should be marked against garbage collection
1550 for a given relocation. */
1551
1552static asection *
c39a58e6 1553elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1554 struct bfd_link_info *info,
875c0872
DA
1555 Elf_Internal_Rela *rela,
1556 struct elf_link_hash_entry *hh,
c39a58e6 1557 Elf_Internal_Sym *sym)
30667bf3 1558{
875c0872 1559 if (hh != NULL)
07adf181
AM
1560 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1561 {
1562 case R_PARISC_GNU_VTINHERIT:
1563 case R_PARISC_GNU_VTENTRY:
1564 return NULL;
1565 }
30667bf3 1566
07adf181 1567 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1568}
1569
edfc032f
AM
1570/* Support for core dump NOTE sections. */
1571
1572static bfd_boolean
1573elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1574{
1575 int offset;
1576 size_t size;
1577
1578 switch (note->descsz)
1579 {
1580 default:
1581 return FALSE;
1582
1583 case 396: /* Linux/hppa */
1584 /* pr_cursig */
228e534f 1585 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1586
1587 /* pr_pid */
228e534f 1588 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1589
1590 /* pr_reg */
1591 offset = 72;
1592 size = 320;
1593
1594 break;
1595 }
1596
1597 /* Make a ".reg/999" section. */
1598 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1599 size, note->descpos + offset);
1600}
1601
1602static bfd_boolean
1603elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1604{
1605 switch (note->descsz)
1606 {
1607 default:
1608 return FALSE;
1609
1610 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1611 elf_tdata (abfd)->core->program
edfc032f 1612 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1613 elf_tdata (abfd)->core->command
edfc032f
AM
1614 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1615 }
1616
1617 /* Note that for some reason, a spurious space is tacked
1618 onto the end of the args in some (at least one anyway)
1619 implementations, so strip it off if it exists. */
1620 {
228e534f 1621 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1622 int n = strlen (command);
1623
1624 if (0 < n && command[n - 1] == ' ')
1625 command[n - 1] = '\0';
1626 }
1627
1628 return TRUE;
1629}
1630
74d1c347
AM
1631/* Our own version of hide_symbol, so that we can keep plt entries for
1632 plabels. */
1633
1634static void
c39a58e6 1635elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1636 struct elf_link_hash_entry *eh,
c39a58e6 1637 bfd_boolean force_local)
74d1c347 1638{
e5094212
AM
1639 if (force_local)
1640 {
875c0872
DA
1641 eh->forced_local = 1;
1642 if (eh->dynindx != -1)
e5094212 1643 {
875c0872 1644 eh->dynindx = -1;
e5094212 1645 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1646 eh->dynstr_index);
e5094212 1647 }
31fc8a0b
NC
1648
1649 /* PR 16082: Remove version information from hidden symbol. */
1650 eh->verinfo.verdef = NULL;
1651 eh->verinfo.vertree = NULL;
e5094212
AM
1652 }
1653
4340287b
DA
1654 /* STT_GNU_IFUNC symbol must go through PLT. */
1655 if (! hppa_elf_hash_entry (eh)->plabel
1656 && eh->type != STT_GNU_IFUNC)
74d1c347 1657 {
875c0872 1658 eh->needs_plt = 0;
4340287b 1659 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1660 }
1661}
1662
127e8e9f
AM
1663/* Find any dynamic relocs that apply to read-only sections. */
1664
1665static asection *
1666readonly_dynrelocs (struct elf_link_hash_entry *eh)
1667{
1668 struct elf32_hppa_link_hash_entry *hh;
1669 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1670
1671 hh = hppa_elf_hash_entry (eh);
1672 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1673 {
1674 asection *sec = hdh_p->sec->output_section;
1675
1676 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1677 return hdh_p->sec;
1678 }
1679 return NULL;
1680}
1681
30667bf3
AM
1682/* Adjust a symbol defined by a dynamic object and referenced by a
1683 regular object. The current definition is in some section of the
1684 dynamic object, but we're not including those sections. We have to
1685 change the definition to something the rest of the link can
1686 understand. */
252b5132 1687
b34976b6 1688static bfd_boolean
c39a58e6 1689elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1690 struct elf_link_hash_entry *eh)
252b5132 1691{
83c81bfe 1692 struct elf32_hppa_link_hash_table *htab;
5474d94f 1693 asection *sec, *srel;
30667bf3
AM
1694
1695 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1696 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1697 if (eh->type == STT_FUNC
1698 || eh->needs_plt)
30667bf3 1699 {
127e8e9f
AM
1700 /* After adjust_dynamic_symbol, non_got_ref set in the non-pic
1701 case means that dyn_relocs for this symbol should be
1702 discarded; We either want the symbol to remain undefined, or
1703 we have a local definition of some sort. The "local
1704 definition" for non-function symbols may be due to creating a
1705 local definition in .dynbss.
1706 Unlike other targets, elf32-hppa.c does not define a function
1707 symbol in a non-pic executable on PLT stub code, so we don't
1708 have a local definition in that case. dyn_relocs therefore
1709 should not be discarded for function symbols, generally.
1710 However we should discard dyn_relocs if we've decided that an
1711 undefined function symbol is local, for example due to
1712 non-default visibility, or UNDEFWEAK_NO_DYNAMIC_RELOC is
1713 true for an undefined weak symbol. */
1714 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh)
1715 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh));
1716 /* Prior to adjust_dynamic_symbol, non_got_ref set means that
1717 check_relocs set up some dyn_relocs for this symbol.
1718 The !non_got_ref term here is saying that if we didn't have
1719 any dyn_relocs set up by check_relocs, then we don't want
1720 relocate_section looking for them.
1721 FIXME: Get rid of the inversion, so non_got_ref set after
1722 dyn_relocs means we do have dyn_relocs. */
1723 eh->non_got_ref = local || !eh->non_got_ref;
1724
4340287b
DA
1725 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1726 The refcounts are not reliable when it has been hidden since
1727 hide_symbol can be called before the plabel flag is set. */
d336fa6d 1728 if (hppa_elf_hash_entry (eh)->plabel)
4340287b
DA
1729 eh->plt.refcount = 1;
1730
127e8e9f
AM
1731 /* Note that unlike some other backends, the refcount is not
1732 incremented for a non-call (and non-plabel) function reference. */
d336fa6d 1733 else if (eh->plt.refcount <= 0
127e8e9f 1734 || local)
30667bf3
AM
1735 {
1736 /* The .plt entry is not needed when:
1737 a) Garbage collection has removed all references to the
1738 symbol, or
1739 b) We know for certain the symbol is defined in this
74d1c347
AM
1740 object, and it's not a weak definition, nor is the symbol
1741 used by a plabel relocation. Either this object is the
1742 application or we are doing a shared symbolic link. */
875c0872
DA
1743 eh->plt.offset = (bfd_vma) -1;
1744 eh->needs_plt = 0;
30667bf3 1745 }
4dc86686 1746
127e8e9f 1747 /* Function symbols can't have copy relocs. */
b34976b6 1748 return TRUE;
30667bf3 1749 }
bbd7ec4a 1750 else
875c0872 1751 eh->plt.offset = (bfd_vma) -1;
edd21aca 1752
30667bf3
AM
1753 /* If this is a weak symbol, and there is a real definition, the
1754 processor independent code will have arranged for us to see the
1755 real definition first, and we can just use the same value. */
875c0872 1756 if (eh->u.weakdef != NULL)
edd21aca 1757 {
875c0872
DA
1758 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1759 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1760 abort ();
875c0872
DA
1761 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1762 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1763 if (ELIMINATE_COPY_RELOCS)
875c0872 1764 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1765 return TRUE;
30667bf3 1766 }
edd21aca 1767
30667bf3
AM
1768 /* This is a reference to a symbol defined by a dynamic object which
1769 is not a function. */
1770
1771 /* If we are creating a shared library, we must presume that the
1772 only references to the symbol are via the global offset table.
1773 For such cases we need not do anything here; the relocations will
1774 be handled correctly by relocate_section. */
0e1862bb 1775 if (bfd_link_pic (info))
b34976b6 1776 return TRUE;
30667bf3
AM
1777
1778 /* If there are no references to this symbol that do not use the
1779 GOT, we don't need to generate a copy reloc. */
875c0872 1780 if (!eh->non_got_ref)
ebe50bae 1781 {
127e8e9f
AM
1782 eh->non_got_ref = 1;
1783 return TRUE;
1784 }
ebe50bae 1785
127e8e9f
AM
1786 /* If -z nocopyreloc was given, we won't generate them either. */
1787 if (info->nocopyreloc)
1788 {
1789 eh->non_got_ref = 0;
1790 return TRUE;
1791 }
4fc8051d 1792
127e8e9f
AM
1793 if (ELIMINATE_COPY_RELOCS
1794 && !readonly_dynrelocs (eh))
1795 {
4fc8051d
AM
1796 /* If we didn't find any dynamic relocs in read-only sections, then
1797 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
127e8e9f
AM
1798 eh->non_got_ref = 0;
1799 return TRUE;
ebe50bae
AM
1800 }
1801
30667bf3
AM
1802 /* We must allocate the symbol in our .dynbss section, which will
1803 become part of the .bss section of the executable. There will be
1804 an entry for this symbol in the .dynsym section. The dynamic
1805 object will contain position independent code, so all references
1806 from the dynamic object to this symbol will go through the global
1807 offset table. The dynamic linker will use the .dynsym entry to
1808 determine the address it must put in the global offset table, so
1809 both the dynamic object and the regular object will refer to the
1810 same memory location for the variable. */
1811
3ac8354b 1812 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1813 if (htab == NULL)
1814 return FALSE;
30667bf3
AM
1815
1816 /* We must generate a COPY reloc to tell the dynamic linker to
1817 copy the initial value out of the dynamic object and into the
3ac8354b 1818 runtime process image. */
5474d94f
AM
1819 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1820 {
1821 sec = htab->etab.sdynrelro;
1822 srel = htab->etab.sreldynrelro;
1823 }
1824 else
1825 {
1826 sec = htab->etab.sdynbss;
1827 srel = htab->etab.srelbss;
1828 }
1d7e9d18 1829 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1830 {
5474d94f 1831 srel->size += sizeof (Elf32_External_Rela);
875c0872 1832 eh->needs_copy = 1;
edd21aca 1833 }
252b5132 1834
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
4dc86686
AM
1919/* Allocate space in .plt, .got and associated reloc sections for
1920 global syms. */
1921
b34976b6 1922static bfd_boolean
875c0872 1923allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1924{
1925 struct bfd_link_info *info;
83c81bfe 1926 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1927 asection *sec;
1928 struct elf32_hppa_link_hash_entry *hh;
1929 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 1930
875c0872 1931 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1932 return TRUE;
73a74a62 1933
c39a58e6 1934 info = inf;
83c81bfe 1935 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1936 if (htab == NULL)
1937 return FALSE;
1938
875c0872 1939 hh = hppa_elf_hash_entry (eh);
68ffbac6 1940
a63e02c7 1941 if (htab->etab.dynamic_sections_created
875c0872
DA
1942 && eh->plt.offset != (bfd_vma) -1
1943 && !hh->plabel
1944 && eh->plt.refcount > 0)
4dc86686 1945 {
e5ee5df1 1946 /* Make an entry in the .plt section. */
ce558b89 1947 sec = htab->etab.splt;
875c0872
DA
1948 eh->plt.offset = sec->size;
1949 sec->size += PLT_ENTRY_SIZE;
3ac8354b 1950
e5ee5df1 1951 /* We also need to make an entry in the .rela.plt section. */
ce558b89 1952 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 1953 htab->need_plt_stub = 1;
4dc86686 1954 }
edd21aca 1955
875c0872 1956 if (eh->got.refcount > 0)
4dc86686 1957 {
46434633 1958 if (!ensure_undef_dynamic (info, eh))
595e0a47 1959 return FALSE;
446f2863 1960
ce558b89 1961 sec = htab->etab.sgot;
875c0872
DA
1962 eh->got.offset = sec->size;
1963 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
1964 /* R_PARISC_TLS_GD* needs two GOT entries */
1965 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
1966 sec->size += GOT_ENTRY_SIZE * 2;
1967 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
1968 sec->size += GOT_ENTRY_SIZE;
a63e02c7 1969 if (htab->etab.dynamic_sections_created
0e1862bb 1970 && (bfd_link_pic (info)
875c0872 1971 || (eh->dynindx != -1
d336fa6d
AM
1972 && !SYMBOL_REFERENCES_LOCAL (info, eh)))
1973 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
ce757d15 1974 {
ce558b89 1975 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e 1976 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
ce558b89 1977 htab->etab.srelgot->size += 2 * sizeof (Elf32_External_Rela);
9b52905e 1978 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
ce558b89 1979 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 1980 }
4dc86686
AM
1981 }
1982 else
875c0872 1983 eh->got.offset = (bfd_vma) -1;
30667bf3 1984
d336fa6d
AM
1985 /* If no dynamic sections we can't have dynamic relocs. */
1986 if (!htab->etab.dynamic_sections_created)
1987 hh->dyn_relocs = NULL;
1988
875c0872 1989 if (hh->dyn_relocs == NULL)
b34976b6 1990 return TRUE;
30667bf3 1991
98ceb8ce
AM
1992 /* If this is a -Bsymbolic shared link, then we need to discard all
1993 space allocated for dynamic pc-relative relocs against symbols
1994 defined in a regular object. For the normal shared case, discard
1995 space for relocs that have become local due to symbol visibility
1996 changes. */
0e1862bb 1997 if (bfd_link_pic (info))
446f2863 1998 {
46434633
AM
1999 /* Discard relocs on undefined syms with non-default visibility. */
2000 if ((eh->root.type == bfd_link_hash_undefined
d336fa6d
AM
2001 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2002 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
46434633
AM
2003 hh->dyn_relocs = NULL;
2004
98ceb8ce 2005#if RELATIVE_DYNRELOCS
46434633 2006 else if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2007 {
875c0872 2008 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2009
875c0872 2010 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2011 {
875c0872
DA
2012 hdh_p->count -= hdh_p->relative_count;
2013 hdh_p->relative_count = 0;
2014 if (hdh_p->count == 0)
a63e02c7 2015 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2016 else
a63e02c7 2017 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2018 }
2019 }
2020#endif
4fc8051d 2021
46434633 2022 if (hh->dyn_relocs != NULL)
22d606e9 2023 {
46434633 2024 if (!ensure_undef_dynamic (info, eh))
595e0a47 2025 return FALSE;
22d606e9 2026 }
446f2863 2027 }
d336fa6d 2028 else if (ELIMINATE_COPY_RELOCS)
30667bf3 2029 {
98ceb8ce
AM
2030 /* For the non-shared case, discard space for relocs against
2031 symbols which turn out to need copy relocs or are not
2032 dynamic. */
68ffbac6 2033
875c0872 2034 if (!eh->non_got_ref
d336fa6d 2035 && !eh->def_regular)
98ceb8ce 2036 {
46434633 2037 if (!ensure_undef_dynamic (info, eh))
595e0a47 2038 return FALSE;
98ceb8ce 2039
46434633
AM
2040 if (eh->dynindx == -1)
2041 hh->dyn_relocs = NULL;
98ceb8ce 2042 }
46434633
AM
2043 else
2044 hh->dyn_relocs = NULL;
30667bf3 2045 }
30667bf3 2046
98ceb8ce 2047 /* Finally, allocate space. */
a63e02c7 2048 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2049 {
875c0872
DA
2050 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2051 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2052 }
30667bf3 2053
b34976b6 2054 return TRUE;
30667bf3 2055}
30667bf3 2056
d5c73c2f
AM
2057/* This function is called via elf_link_hash_traverse to force
2058 millicode symbols local so they do not end up as globals in the
2059 dynamic symbol table. We ought to be able to do this in
2060 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2061 for all dynamic symbols. Arguably, this is a bug in
2062 elf_adjust_dynamic_symbol. */
2063
b34976b6 2064static bfd_boolean
875c0872 2065clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2066 struct bfd_link_info *info)
d5c73c2f 2067{
875c0872
DA
2068 if (eh->type == STT_PARISC_MILLI
2069 && !eh->forced_local)
e0522e89 2070 {
875c0872 2071 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2072 }
b34976b6 2073 return TRUE;
d5c73c2f
AM
2074}
2075
127e8e9f
AM
2076/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2077 read-only sections. */
98ceb8ce 2078
b34976b6 2079static bfd_boolean
127e8e9f 2080maybe_set_textrel (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2081{
127e8e9f 2082 asection *sec;
98ceb8ce 2083
127e8e9f
AM
2084 if (eh->root.type == bfd_link_hash_indirect)
2085 return TRUE;
98ceb8ce 2086
127e8e9f
AM
2087 sec = readonly_dynrelocs (eh);
2088 if (sec != NULL)
2089 {
2090 struct bfd_link_info *info = (struct bfd_link_info *) inf;
98ceb8ce 2091
127e8e9f
AM
2092 info->flags |= DF_TEXTREL;
2093 info->callbacks->minfo
2094 (_("%B: dynamic relocation in read-only section `%A'\n"),
2095 sec->owner, sec);
98ceb8ce 2096
127e8e9f
AM
2097 /* Not an error, just cut short the traversal. */
2098 return FALSE;
98ceb8ce 2099 }
b34976b6 2100 return TRUE;
98ceb8ce
AM
2101}
2102
30667bf3
AM
2103/* Set the sizes of the dynamic sections. */
2104
b34976b6 2105static bfd_boolean
c39a58e6
AM
2106elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2107 struct bfd_link_info *info)
30667bf3 2108{
83c81bfe 2109 struct elf32_hppa_link_hash_table *htab;
30667bf3 2110 bfd *dynobj;
98ceb8ce 2111 bfd *ibfd;
875c0872 2112 asection *sec;
b34976b6 2113 bfd_boolean relocs;
30667bf3 2114
83c81bfe 2115 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2116 if (htab == NULL)
2117 return FALSE;
2118
a63e02c7 2119 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2120 if (dynobj == NULL)
2121 abort ();
30667bf3 2122
a63e02c7 2123 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2124 {
2125 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2126 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2127 {
3d4d4302 2128 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2129 if (sec == NULL)
49e9d0d3 2130 abort ();
875c0872
DA
2131 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2132 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2133 }
74d1c347 2134
d5c73c2f 2135 /* Force millicode symbols local. */
a63e02c7 2136 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2137 clobber_millicode_symbols,
2138 info);
68fb2e56 2139 }
d5c73c2f 2140
98ceb8ce
AM
2141 /* Set up .got and .plt offsets for local syms, and space for local
2142 dynamic relocs. */
c72f2fb2 2143 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2144 {
2145 bfd_signed_vma *local_got;
2146 bfd_signed_vma *end_local_got;
2147 bfd_signed_vma *local_plt;
2148 bfd_signed_vma *end_local_plt;
2149 bfd_size_type locsymcount;
2150 Elf_Internal_Shdr *symtab_hdr;
2151 asection *srel;
9b52905e 2152 char *local_tls_type;
74d1c347 2153
98ceb8ce 2154 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2155 continue;
4dc86686 2156
875c0872 2157 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2158 {
875c0872 2159 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2160
875c0872
DA
2161 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2162 elf_section_data (sec)->local_dynrel);
2163 hdh_p != NULL;
a63e02c7 2164 hdh_p = hdh_p->hdh_next)
98ceb8ce 2165 {
875c0872
DA
2166 if (!bfd_is_abs_section (hdh_p->sec)
2167 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2168 {
2169 /* Input section has been discarded, either because
2170 it is a copy of a linkonce section or due to
2171 linker script /DISCARD/, so we'll be discarding
2172 the relocs too. */
2173 }
875c0872 2174 else if (hdh_p->count != 0)
ec338859 2175 {
875c0872
DA
2176 srel = elf_section_data (hdh_p->sec)->sreloc;
2177 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2178 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2179 info->flags |= DF_TEXTREL;
ec338859 2180 }
98ceb8ce
AM
2181 }
2182 }
2183
2184 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2185 if (!local_got)
2186 continue;
74d1c347 2187
98ceb8ce 2188 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2189 locsymcount = symtab_hdr->sh_info;
2190 end_local_got = local_got + locsymcount;
9b52905e 2191 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
ce558b89
AM
2192 sec = htab->etab.sgot;
2193 srel = htab->etab.srelgot;
68fb2e56
AM
2194 for (; local_got < end_local_got; ++local_got)
2195 {
2196 if (*local_got > 0)
4dc86686 2197 {
875c0872
DA
2198 *local_got = sec->size;
2199 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2200 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2201 sec->size += 2 * GOT_ENTRY_SIZE;
2202 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2203 sec->size += GOT_ENTRY_SIZE;
0e1862bb 2204 if (bfd_link_pic (info))
9b52905e
NC
2205 {
2206 srel->size += sizeof (Elf32_External_Rela);
2207 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2208 srel->size += 2 * sizeof (Elf32_External_Rela);
2209 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2210 srel->size += sizeof (Elf32_External_Rela);
2211 }
4dc86686 2212 }
68fb2e56
AM
2213 else
2214 *local_got = (bfd_vma) -1;
9b52905e
NC
2215
2216 ++local_tls_type;
68fb2e56 2217 }
74d1c347 2218
68fb2e56
AM
2219 local_plt = end_local_got;
2220 end_local_plt = local_plt + locsymcount;
a63e02c7 2221 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2222 {
2223 /* Won't be used, but be safe. */
2224 for (; local_plt < end_local_plt; ++local_plt)
2225 *local_plt = (bfd_vma) -1;
2226 }
2227 else
2228 {
ce558b89
AM
2229 sec = htab->etab.splt;
2230 srel = htab->etab.srelplt;
74d1c347
AM
2231 for (; local_plt < end_local_plt; ++local_plt)
2232 {
2233 if (*local_plt > 0)
2234 {
875c0872
DA
2235 *local_plt = sec->size;
2236 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2237 if (bfd_link_pic (info))
eea6121a 2238 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2239 }
2240 else
2241 *local_plt = (bfd_vma) -1;
2242 }
2243 }
30667bf3 2244 }
68ffbac6 2245
9b52905e
NC
2246 if (htab->tls_ldm_got.refcount > 0)
2247 {
68ffbac6 2248 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e 2249 R_PARISC_TLS_DTPMOD32 relocs. */
ce558b89
AM
2250 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2251 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2252 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2253 }
2254 else
2255 htab->tls_ldm_got.offset = -1;
30667bf3 2256
e5ee5df1
AM
2257 /* Do all the .plt entries without relocs first. The dynamic linker
2258 uses the last .plt reloc to find the end of the .plt (and hence
2259 the start of the .got) for lazy linking. */
a63e02c7 2260 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2261
98ceb8ce
AM
2262 /* Allocate global sym .plt and .got entries, and space for global
2263 sym dynamic relocs. */
a63e02c7 2264 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2265
2266 /* The check_relocs and adjust_dynamic_symbol entry points have
2267 determined the sizes of the various dynamic sections. Allocate
2268 memory for them. */
b34976b6 2269 relocs = FALSE;
875c0872 2270 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2271 {
875c0872 2272 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2273 continue;
2274
ce558b89 2275 if (sec == htab->etab.splt)
68fb2e56 2276 {
83c81bfe 2277 if (htab->need_plt_stub)
68fb2e56
AM
2278 {
2279 /* Make space for the plt stub at the end of the .plt
2280 section. We want this stub right at the end, up
2281 against the .got section. */
ce558b89 2282 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
875c0872 2283 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2284 bfd_size_type mask;
30667bf3 2285
68fb2e56 2286 if (gotalign > pltalign)
a253d456 2287 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2288 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2289 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2290 }
2291 }
ce558b89 2292 else if (sec == htab->etab.sgot
5474d94f
AM
2293 || sec == htab->etab.sdynbss
2294 || sec == htab->etab.sdynrelro)
68fb2e56 2295 ;
0112cd26 2296 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2297 {
875c0872 2298 if (sec->size != 0)
30667bf3 2299 {
4e12ff7f
AM
2300 /* Remember whether there are any reloc sections other
2301 than .rela.plt. */
ce558b89 2302 if (sec != htab->etab.srelplt)
b34976b6 2303 relocs = TRUE;
47d89dba 2304
30667bf3
AM
2305 /* We use the reloc_count field as a counter if we need
2306 to copy relocs into the output file. */
875c0872 2307 sec->reloc_count = 0;
30667bf3
AM
2308 }
2309 }
30667bf3
AM
2310 else
2311 {
2312 /* It's not one of our sections, so don't allocate space. */
2313 continue;
2314 }
2315
875c0872 2316 if (sec->size == 0)
30667bf3
AM
2317 {
2318 /* If we don't need this section, strip it from the
2319 output file. This is mostly to handle .rela.bss and
2320 .rela.plt. We must create both sections in
2321 create_dynamic_sections, because they must be created
2322 before the linker maps input sections to output
2323 sections. The linker does that before
2324 adjust_dynamic_symbol is called, and it is that
2325 function which decides whether anything needs to go
2326 into these sections. */
875c0872 2327 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2328 continue;
2329 }
2330
c456f082
AM
2331 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2332 continue;
2333
30667bf3
AM
2334 /* Allocate memory for the section contents. Zero it, because
2335 we may not fill in all the reloc sections. */
875c0872 2336 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2337 if (sec->contents == NULL)
b34976b6 2338 return FALSE;
30667bf3
AM
2339 }
2340
a63e02c7 2341 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2342 {
2343 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2344 actually has nothing to do with the PLT, it is how we
2345 communicate the LTP value of a load module to the dynamic
2346 linker. */
dc810e39 2347#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2348 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2349
2350 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2351 return FALSE;
30667bf3
AM
2352
2353 /* Add some entries to the .dynamic section. We fill in the
2354 values later, in elf32_hppa_finish_dynamic_sections, but we
2355 must add the entries now so that we get the correct size for
2356 the .dynamic section. The DT_DEBUG entry is filled in by the
2357 dynamic linker and used by the debugger. */
0e1862bb 2358 if (bfd_link_executable (info))
30667bf3 2359 {
dc810e39 2360 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2361 return FALSE;
30667bf3
AM
2362 }
2363
ce558b89 2364 if (htab->etab.srelplt->size != 0)
30667bf3 2365 {
dc810e39
AM
2366 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2367 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2368 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2369 return FALSE;
30667bf3
AM
2370 }
2371
2372 if (relocs)
2373 {
dc810e39
AM
2374 if (!add_dynamic_entry (DT_RELA, 0)
2375 || !add_dynamic_entry (DT_RELASZ, 0)
2376 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2377 return FALSE;
30667bf3 2378
98ceb8ce
AM
2379 /* If any dynamic relocs apply to a read-only section,
2380 then we need a DT_TEXTREL entry. */
248866a8 2381 if ((info->flags & DF_TEXTREL) == 0)
127e8e9f 2382 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
98ceb8ce
AM
2383
2384 if ((info->flags & DF_TEXTREL) != 0)
2385 {
2386 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2387 return FALSE;
98ceb8ce 2388 }
30667bf3
AM
2389 }
2390 }
dc810e39 2391#undef add_dynamic_entry
30667bf3 2392
b34976b6 2393 return TRUE;
30667bf3
AM
2394}
2395
30667bf3
AM
2396/* External entry points for sizing and building linker stubs. */
2397
b4655ea9
AM
2398/* Set up various things so that we can make a list of input sections
2399 for each output section included in the link. Returns -1 on error,
cedb70c5 2400 0 when no stubs will be needed, and 1 on success. */
30667bf3 2401
b4655ea9 2402int
c39a58e6 2403elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2404{
2405 bfd *input_bfd;
b4655ea9 2406 unsigned int bfd_count;
7292b3ac 2407 unsigned int top_id, top_index;
30667bf3 2408 asection *section;
25f72752 2409 asection **input_list, **list;
dc810e39 2410 bfd_size_type amt;
b4655ea9 2411 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2412
4dfe6ac6
NC
2413 if (htab == NULL)
2414 return -1;
2415
1badb539
AM
2416 /* Count the number of input BFDs and find the top input section id. */
2417 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2418 input_bfd != NULL;
c72f2fb2 2419 input_bfd = input_bfd->link.next)
30667bf3
AM
2420 {
2421 bfd_count += 1;
25f72752
AM
2422 for (section = input_bfd->sections;
2423 section != NULL;
2424 section = section->next)
2425 {
2426 if (top_id < section->id)
2427 top_id = section->id;
2428 }
30667bf3 2429 }
b4655ea9 2430 htab->bfd_count = bfd_count;
30667bf3 2431
dc810e39 2432 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2433 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2434 if (htab->stub_group == NULL)
b4655ea9 2435 return -1;
1badb539 2436
b4655ea9 2437 /* We can't use output_bfd->section_count here to find the top output
1badb539 2438 section index as some sections may have been removed, and
8423293d 2439 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2440 for (section = output_bfd->sections, top_index = 0;
2441 section != NULL;
2442 section = section->next)
2443 {
2444 if (top_index < section->index)
2445 top_index = section->index;
2446 }
2447
b4655ea9 2448 htab->top_index = top_index;
dc810e39 2449 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2450 input_list = bfd_malloc (amt);
b4655ea9 2451 htab->input_list = input_list;
25f72752 2452 if (input_list == NULL)
b4655ea9 2453 return -1;
25f72752 2454
1badb539
AM
2455 /* For sections we aren't interested in, mark their entries with a
2456 value we can check later. */
2457 list = input_list + top_index;
2458 do
2459 *list = bfd_abs_section_ptr;
2460 while (list-- != input_list);
2461
2462 for (section = output_bfd->sections;
2463 section != NULL;
2464 section = section->next)
2465 {
47d89dba 2466 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2467 input_list[section->index] = NULL;
2468 }
2469
b4655ea9
AM
2470 return 1;
2471}
2472
2473/* The linker repeatedly calls this function for each input section,
2474 in the order that input sections are linked into output sections.
2475 Build lists of input sections to determine groupings between which
2476 we may insert linker stubs. */
2477
2478void
c39a58e6 2479elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2480{
2481 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2482
4dfe6ac6
NC
2483 if (htab == NULL)
2484 return;
2485
b4655ea9 2486 if (isec->output_section->index <= htab->top_index)
25f72752 2487 {
b4655ea9
AM
2488 asection **list = htab->input_list + isec->output_section->index;
2489 if (*list != bfd_abs_section_ptr)
25f72752 2490 {
b4655ea9 2491 /* Steal the link_sec pointer for our list. */
83c81bfe 2492#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2493 /* This happens to make the list in reverse order,
2494 which is what we want. */
2495 PREV_SEC (isec) = *list;
2496 *list = isec;
25f72752
AM
2497 }
2498 }
b4655ea9 2499}
25f72752 2500
b4655ea9
AM
2501/* See whether we can group stub sections together. Grouping stub
2502 sections may result in fewer stubs. More importantly, we need to
2503 put all .init* and .fini* stubs at the beginning of the .init or
2504 .fini output sections respectively, because glibc splits the
2505 _init and _fini functions into multiple parts. Putting a stub in
2506 the middle of a function is not a good idea. */
2507
2508static void
c39a58e6
AM
2509group_sections (struct elf32_hppa_link_hash_table *htab,
2510 bfd_size_type stub_group_size,
2511 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2512{
2513 asection **list = htab->input_list + htab->top_index;
1badb539 2514 do
25f72752
AM
2515 {
2516 asection *tail = *list;
1badb539
AM
2517 if (tail == bfd_abs_section_ptr)
2518 continue;
25f72752
AM
2519 while (tail != NULL)
2520 {
2521 asection *curr;
2522 asection *prev;
2523 bfd_size_type total;
00b28bb0 2524 bfd_boolean big_sec;
25f72752
AM
2525
2526 curr = tail;
eea6121a 2527 total = tail->size;
00b28bb0
AM
2528 big_sec = total >= stub_group_size;
2529
25f72752
AM
2530 while ((prev = PREV_SEC (curr)) != NULL
2531 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2532 < stub_group_size))
25f72752
AM
2533 curr = prev;
2534
2535 /* OK, the size from the start of CURR to the end is less
a248e267 2536 than 240000 bytes and thus can be handled by one stub
25f72752 2537 section. (or the tail section is itself larger than
a248e267 2538 240000 bytes, in which case we may be toast.)
25f72752
AM
2539 We should really be keeping track of the total size of
2540 stubs added here, as stubs contribute to the final output
2541 section size. That's a little tricky, and this way will
a248e267
AM
2542 only break if stubs added total more than 22144 bytes, or
2543 2768 long branch stubs. It seems unlikely for more than
2544 2768 different functions to be called, especially from
2545 code only 240000 bytes long. This limit used to be
2546 250000, but c++ code tends to generate lots of little
2547 functions, and sometimes violated the assumption. */
25f72752
AM
2548 do
2549 {
2550 prev = PREV_SEC (tail);
2551 /* Set up this stub group. */
83c81bfe 2552 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2553 }
2554 while (tail != curr && (tail = prev) != NULL);
2555
a248e267 2556 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2557 bytes before the stub section can be handled by it too.
2558 Don't do this if we have a really large section after the
2559 stubs, as adding more stubs increases the chance that
2560 branches may not reach into the stub section. */
2561 if (!stubs_always_before_branch && !big_sec)
25f72752 2562 {
47d89dba
AM
2563 total = 0;
2564 while (prev != NULL
2565 && ((total += tail->output_offset - prev->output_offset)
2566 < stub_group_size))
2567 {
2568 tail = prev;
2569 prev = PREV_SEC (tail);
83c81bfe 2570 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2571 }
25f72752
AM
2572 }
2573 tail = prev;
2574 }
2575 }
b4655ea9
AM
2576 while (list-- != htab->input_list);
2577 free (htab->input_list);
1badb539 2578#undef PREV_SEC
b4655ea9
AM
2579}
2580
2581/* Read in all local syms for all input bfds, and create hash entries
2582 for export stubs if we are building a multi-subspace shared lib.
2583 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2584
2585static int
c39a58e6 2586get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2587{
2588 unsigned int bfd_indx;
2589 Elf_Internal_Sym *local_syms, **all_local_syms;
2590 int stub_changed = 0;
2591 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2592
4dfe6ac6
NC
2593 if (htab == NULL)
2594 return -1;
2595
30667bf3
AM
2596 /* We want to read in symbol extension records only once. To do this
2597 we need to read in the local symbols in parallel and save them for
2598 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2599 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2600 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2601 htab->all_local_syms = all_local_syms;
30667bf3 2602 if (all_local_syms == NULL)
b4655ea9 2603 return -1;
30667bf3
AM
2604
2605 /* Walk over all the input BFDs, swapping in local symbols.
2606 If we are creating a shared library, create hash entries for the
2607 export stubs. */
b4655ea9 2608 for (bfd_indx = 0;
30667bf3 2609 input_bfd != NULL;
c72f2fb2 2610 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2611 {
2612 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2613
252b5132
RH
2614 /* We'll need the symbol table in a second. */
2615 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2616 if (symtab_hdr->sh_info == 0)
2617 continue;
2618
6cdc0ccc
AM
2619 /* We need an array of the local symbols attached to the input bfd. */
2620 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2621 if (local_syms == NULL)
edd21aca 2622 {
6cdc0ccc
AM
2623 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2624 symtab_hdr->sh_info, 0,
2625 NULL, NULL, NULL);
2626 /* Cache them for elf_link_input_bfd. */
2627 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2628 }
6cdc0ccc
AM
2629 if (local_syms == NULL)
2630 return -1;
edd21aca 2631
6cdc0ccc 2632 all_local_syms[bfd_indx] = local_syms;
edd21aca 2633
0e1862bb 2634 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2635 {
875c0872
DA
2636 struct elf_link_hash_entry **eh_syms;
2637 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2638 unsigned int symcount;
2639
2640 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2641 - symtab_hdr->sh_info);
875c0872
DA
2642 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2643 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2644
2645 /* Look through the global syms for functions; We need to
2646 build export stubs for all globally visible functions. */
875c0872 2647 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2648 {
875c0872 2649 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2650
875c0872 2651 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2652
a63e02c7
DA
2653 while (hh->eh.root.type == bfd_link_hash_indirect
2654 || hh->eh.root.type == bfd_link_hash_warning)
2655 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2656
2657 /* At this point in the link, undefined syms have been
2658 resolved, so we need to check that the symbol was
2659 defined in this BFD. */
a63e02c7
DA
2660 if ((hh->eh.root.type == bfd_link_hash_defined
2661 || hh->eh.root.type == bfd_link_hash_defweak)
2662 && hh->eh.type == STT_FUNC
2663 && hh->eh.root.u.def.section->output_section != NULL
2664 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2665 == output_bfd)
a63e02c7
DA
2666 && hh->eh.root.u.def.section->owner == input_bfd
2667 && hh->eh.def_regular
2668 && !hh->eh.forced_local
2669 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2670 {
2671 asection *sec;
2672 const char *stub_name;
875c0872 2673 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2674
a63e02c7 2675 sec = hh->eh.root.u.def.section;
9b52905e 2676 stub_name = hh_name (hh);
a63e02c7 2677 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2678 stub_name,
b34976b6 2679 FALSE, FALSE);
875c0872 2680 if (hsh == NULL)
30667bf3 2681 {
875c0872
DA
2682 hsh = hppa_add_stub (stub_name, sec, htab);
2683 if (!hsh)
b4655ea9 2684 return -1;
30667bf3 2685
a63e02c7
DA
2686 hsh->target_value = hh->eh.root.u.def.value;
2687 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2688 hsh->stub_type = hppa_stub_export;
a63e02c7 2689 hsh->hh = hh;
30667bf3
AM
2690 stub_changed = 1;
2691 }
2692 else
2693 {
695344c0 2694 /* xgettext:c-format */
4eca0228
AM
2695 _bfd_error_handler (_("%B: duplicate export stub %s"),
2696 input_bfd, stub_name);
30667bf3
AM
2697 }
2698 }
2699 }
30667bf3
AM
2700 }
2701 }
edd21aca 2702
b4655ea9
AM
2703 return stub_changed;
2704}
2705
2706/* Determine and set the size of the stub section for a final link.
2707
2708 The basic idea here is to examine all the relocations looking for
2709 PC-relative calls to a target that is unreachable with a "bl"
2710 instruction. */
2711
b34976b6 2712bfd_boolean
c39a58e6
AM
2713elf32_hppa_size_stubs
2714 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2715 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2716 asection * (*add_stub_section) (const char *, asection *),
2717 void (*layout_sections_again) (void))
b4655ea9
AM
2718{
2719 bfd_size_type stub_group_size;
b34976b6
AM
2720 bfd_boolean stubs_always_before_branch;
2721 bfd_boolean stub_changed;
b4655ea9
AM
2722 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2723
4dfe6ac6
NC
2724 if (htab == NULL)
2725 return FALSE;
2726
b4655ea9
AM
2727 /* Stash our params away. */
2728 htab->stub_bfd = stub_bfd;
2729 htab->multi_subspace = multi_subspace;
2730 htab->add_stub_section = add_stub_section;
2731 htab->layout_sections_again = layout_sections_again;
2732 stubs_always_before_branch = group_size < 0;
2733 if (group_size < 0)
2734 stub_group_size = -group_size;
2735 else
2736 stub_group_size = group_size;
2737 if (stub_group_size == 1)
2738 {
2739 /* Default values. */
acc990f2
AM
2740 if (stubs_always_before_branch)
2741 {
2742 stub_group_size = 7680000;
2743 if (htab->has_17bit_branch || htab->multi_subspace)
2744 stub_group_size = 240000;
2745 if (htab->has_12bit_branch)
2746 stub_group_size = 7500;
2747 }
2748 else
2749 {
2750 stub_group_size = 6971392;
2751 if (htab->has_17bit_branch || htab->multi_subspace)
2752 stub_group_size = 217856;
2753 if (htab->has_12bit_branch)
2754 stub_group_size = 6808;
2755 }
b4655ea9
AM
2756 }
2757
2758 group_sections (htab, stub_group_size, stubs_always_before_branch);
2759
2760 switch (get_local_syms (output_bfd, info->input_bfds, info))
2761 {
2762 default:
2763 if (htab->all_local_syms)
2764 goto error_ret_free_local;
b34976b6 2765 return FALSE;
b4655ea9
AM
2766
2767 case 0:
b34976b6 2768 stub_changed = FALSE;
b4655ea9
AM
2769 break;
2770
2771 case 1:
b34976b6 2772 stub_changed = TRUE;
b4655ea9
AM
2773 break;
2774 }
2775
edd21aca
AM
2776 while (1)
2777 {
b4655ea9
AM
2778 bfd *input_bfd;
2779 unsigned int bfd_indx;
30667bf3
AM
2780 asection *stub_sec;
2781
25f72752 2782 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2783 input_bfd != NULL;
c72f2fb2 2784 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2785 {
2786 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2787 asection *section;
2788 Elf_Internal_Sym *local_syms;
30667bf3
AM
2789
2790 /* We'll need the symbol table in a second. */
2791 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2792 if (symtab_hdr->sh_info == 0)
2793 continue;
2794
b4655ea9 2795 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2796
2797 /* Walk over each section attached to the input bfd. */
2798 for (section = input_bfd->sections;
2799 section != NULL;
25f72752 2800 section = section->next)
30667bf3 2801 {
30667bf3
AM
2802 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2803
2804 /* If there aren't any relocs, then there's nothing more
2805 to do. */
2806 if ((section->flags & SEC_RELOC) == 0
2807 || section->reloc_count == 0)
2808 continue;
2809
25f72752
AM
2810 /* If this section is a link-once section that will be
2811 discarded, then don't create any stubs. */
2812 if (section->output_section == NULL
2813 || section->output_section->owner != output_bfd)
2814 continue;
2815
1e2f5b6e
AM
2816 /* Get the relocs. */
2817 internal_relocs
c39a58e6 2818 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2819 info->keep_memory);
30667bf3 2820 if (internal_relocs == NULL)
1e2f5b6e 2821 goto error_ret_free_local;
30667bf3
AM
2822
2823 /* Now examine each relocation. */
2824 irela = internal_relocs;
2825 irelaend = irela + section->reloc_count;
2826 for (; irela < irelaend; irela++)
2827 {
2828 unsigned int r_type, r_indx;
2829 enum elf32_hppa_stub_type stub_type;
875c0872 2830 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2831 asection *sym_sec;
2832 bfd_vma sym_value;
2833 bfd_vma destination;
875c0872 2834 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2835 char *stub_name;
25f72752 2836 const asection *id_sec;
30667bf3
AM
2837
2838 r_type = ELF32_R_TYPE (irela->r_info);
2839 r_indx = ELF32_R_SYM (irela->r_info);
2840
2841 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2842 {
2843 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2844 error_ret_free_internal:
2845 if (elf_section_data (section)->relocs == NULL)
2846 free (internal_relocs);
2847 goto error_ret_free_local;
30667bf3
AM
2848 }
2849
2850 /* Only look for stubs on call instructions. */
2851 if (r_type != (unsigned int) R_PARISC_PCREL12F
2852 && r_type != (unsigned int) R_PARISC_PCREL17F
2853 && r_type != (unsigned int) R_PARISC_PCREL22F)
2854 continue;
2855
2856 /* Now determine the call target, its name, value,
2857 section. */
2858 sym_sec = NULL;
2859 sym_value = 0;
2860 destination = 0;
875c0872 2861 hh = NULL;
30667bf3
AM
2862 if (r_indx < symtab_hdr->sh_info)
2863 {
2864 /* It's a local symbol. */
2865 Elf_Internal_Sym *sym;
2866 Elf_Internal_Shdr *hdr;
4fbb74a6 2867 unsigned int shndx;
30667bf3
AM
2868
2869 sym = local_syms + r_indx;
30667bf3
AM
2870 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2871 sym_value = sym->st_value;
4fbb74a6
AM
2872 shndx = sym->st_shndx;
2873 if (shndx < elf_numsections (input_bfd))
2874 {
2875 hdr = elf_elfsections (input_bfd)[shndx];
2876 sym_sec = hdr->bfd_section;
2877 destination = (sym_value + irela->r_addend
2878 + sym_sec->output_offset
2879 + sym_sec->output_section->vma);
2880 }
30667bf3
AM
2881 }
2882 else
2883 {
2884 /* It's an external symbol. */
2885 int e_indx;
2886
2887 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2888 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2889
a63e02c7
DA
2890 while (hh->eh.root.type == bfd_link_hash_indirect
2891 || hh->eh.root.type == bfd_link_hash_warning)
2892 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2893
a63e02c7
DA
2894 if (hh->eh.root.type == bfd_link_hash_defined
2895 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2896 {
a63e02c7
DA
2897 sym_sec = hh->eh.root.u.def.section;
2898 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2899 if (sym_sec->output_section != NULL)
2900 destination = (sym_value + irela->r_addend
2901 + sym_sec->output_offset
2902 + sym_sec->output_section->vma);
2903 }
a63e02c7 2904 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 2905 {
0e1862bb 2906 if (! bfd_link_pic (info))
c432ba1a
AM
2907 continue;
2908 }
a63e02c7 2909 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2910 {
59c2e50f 2911 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2912 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2913 == STV_DEFAULT)
a63e02c7 2914 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
2915 continue;
2916 }
30667bf3
AM
2917 else
2918 {
2919 bfd_set_error (bfd_error_bad_value);
2920 goto error_ret_free_internal;
2921 }
2922 }
2923
2924 /* Determine what (if any) linker stub is needed. */
875c0872 2925 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 2926 destination, info);
30667bf3
AM
2927 if (stub_type == hppa_stub_none)
2928 continue;
2929
25f72752 2930 /* Support for grouping stub sections. */
83c81bfe 2931 id_sec = htab->stub_group[section->id].link_sec;
25f72752 2932
30667bf3 2933 /* Get the name of this stub. */
875c0872 2934 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
2935 if (!stub_name)
2936 goto error_ret_free_internal;
2937
a63e02c7 2938 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2939 stub_name,
b34976b6 2940 FALSE, FALSE);
875c0872 2941 if (hsh != NULL)
30667bf3
AM
2942 {
2943 /* The proper stub has already been created. */
2944 free (stub_name);
2945 continue;
2946 }
2947
875c0872
DA
2948 hsh = hppa_add_stub (stub_name, section, htab);
2949 if (hsh == NULL)
30667bf3
AM
2950 {
2951 free (stub_name);
1e2f5b6e 2952 goto error_ret_free_internal;
30667bf3
AM
2953 }
2954
875c0872
DA
2955 hsh->target_value = sym_value;
2956 hsh->target_section = sym_sec;
2957 hsh->stub_type = stub_type;
0e1862bb 2958 if (bfd_link_pic (info))
30667bf3
AM
2959 {
2960 if (stub_type == hppa_stub_import)
875c0872 2961 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 2962 else if (stub_type == hppa_stub_long_branch)
875c0872 2963 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 2964 }
a63e02c7 2965 hsh->hh = hh;
b34976b6 2966 stub_changed = TRUE;
30667bf3
AM
2967 }
2968
2969 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
2970 if (elf_section_data (section)->relocs == NULL)
2971 free (internal_relocs);
30667bf3
AM
2972 }
2973 }
2974
2975 if (!stub_changed)
2976 break;
2977
2978 /* OK, we've added some stubs. Find out the new size of the
2979 stub sections. */
83c81bfe 2980 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
2981 stub_sec != NULL;
2982 stub_sec = stub_sec->next)
a464198b
AM
2983 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
2984 stub_sec->size = 0;
74d1c347 2985
a63e02c7 2986 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 2987
30667bf3 2988 /* Ask the linker to do its stuff. */
83c81bfe 2989 (*htab->layout_sections_again) ();
b34976b6 2990 stub_changed = FALSE;
30667bf3
AM
2991 }
2992
6cdc0ccc 2993 free (htab->all_local_syms);
b34976b6 2994 return TRUE;
30667bf3
AM
2995
2996 error_ret_free_local:
b4655ea9 2997 free (htab->all_local_syms);
b34976b6 2998 return FALSE;
30667bf3
AM
2999}
3000
30667bf3
AM
3001/* For a final link, this function is called after we have sized the
3002 stubs to provide a value for __gp. */
3003
b34976b6 3004bfd_boolean
c39a58e6 3005elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3006{
b4655ea9
AM
3007 struct bfd_link_hash_entry *h;
3008 asection *sec = NULL;
3009 bfd_vma gp_val = 0;
30667bf3 3010
55ef6584 3011 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
30667bf3 3012
df8634e3 3013 if (h != NULL
b4655ea9
AM
3014 && (h->type == bfd_link_hash_defined
3015 || h->type == bfd_link_hash_defweak))
30667bf3 3016 {
b4655ea9
AM
3017 gp_val = h->u.def.value;
3018 sec = h->u.def.section;
30667bf3
AM
3019 }
3020 else
3021 {
0eddce27
AM
3022 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3023 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3024
74d1c347
AM
3025 /* Choose to point our LTP at, in this order, one of .plt, .got,
3026 or .data, if these sections exist. In the case of choosing
3027 .plt try to make the LTP ideal for addressing anywhere in the
3028 .plt or .got with a 14 bit signed offset. Typically, the end
3029 of the .plt is the start of the .got, so choose .plt + 0x2000
3030 if either the .plt or .got is larger than 0x2000. If both
3031 the .plt and .got are smaller than 0x2000, choose the end of
3032 the .plt section. */
225247f0
JT
3033 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3034 ? NULL : splt;
74d1c347 3035 if (sec != NULL)
30667bf3 3036 {
eea6121a
AM
3037 gp_val = sec->size;
3038 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3039 {
3040 gp_val = 0x2000;
3041 }
3042 }
3043 else
3044 {
b4655ea9 3045 sec = sgot;
74d1c347
AM
3046 if (sec != NULL)
3047 {
225247f0
JT
3048 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3049 {
3050 /* We know we don't have a .plt. If .got is large,
3051 offset our LTP. */
3052 if (sec->size > 0x2000)
3053 gp_val = 0x2000;
3054 }
74d1c347
AM
3055 }
3056 else
3057 {
3058 /* No .plt or .got. Who cares what the LTP is? */
3059 sec = bfd_get_section_by_name (abfd, ".data");
3060 }
30667bf3 3061 }
df8634e3
AM
3062
3063 if (h != NULL)
3064 {
b4655ea9
AM
3065 h->type = bfd_link_hash_defined;
3066 h->u.def.value = gp_val;
df8634e3 3067 if (sec != NULL)
b4655ea9 3068 h->u.def.section = sec;
df8634e3 3069 else
b4655ea9 3070 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3071 }
30667bf3
AM
3072 }
3073
55ef6584
AM
3074 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3075 {
3076 if (sec != NULL && sec->output_section != NULL)
3077 gp_val += sec->output_section->vma + sec->output_offset;
74d1c347 3078
55ef6584
AM
3079 elf_gp (abfd) = gp_val;
3080 }
b34976b6 3081 return TRUE;
30667bf3
AM
3082}
3083
30667bf3
AM
3084/* Build all the stubs associated with the current output file. The
3085 stubs are kept in a hash table attached to the main linker hash
3086 table. We also set up the .plt entries for statically linked PIC
3087 functions here. This function is called via hppaelf_finish in the
3088 linker. */
3089
b34976b6 3090bfd_boolean
c39a58e6 3091elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3092{
3093 asection *stub_sec;
3094 struct bfd_hash_table *table;
83c81bfe 3095 struct elf32_hppa_link_hash_table *htab;
30667bf3 3096
83c81bfe 3097 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3098 if (htab == NULL)
3099 return FALSE;
30667bf3 3100
83c81bfe 3101 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3102 stub_sec != NULL;
3103 stub_sec = stub_sec->next)
a464198b
AM
3104 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3105 && stub_sec->size != 0)
3106 {
3107 /* Allocate memory to hold the linker stubs. */
3108 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3109 if (stub_sec->contents == NULL)
3110 return FALSE;
3111 stub_sec->size = 0;
3112 }
30667bf3
AM
3113
3114 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3115 table = &htab->bstab;
30667bf3
AM
3116 bfd_hash_traverse (table, hppa_build_one_stub, info);
3117
b34976b6 3118 return TRUE;
30667bf3
AM
3119}
3120
9b52905e 3121/* Return the base vma address which should be subtracted from the real
68ffbac6 3122 address when resolving a dtpoff relocation.
9b52905e
NC
3123 This is PT_TLS segment p_vaddr. */
3124
3125static bfd_vma
3126dtpoff_base (struct bfd_link_info *info)
3127{
3128 /* If tls_sec is NULL, we should have signalled an error already. */
3129 if (elf_hash_table (info)->tls_sec == NULL)
3130 return 0;
3131 return elf_hash_table (info)->tls_sec->vma;
3132}
3133
3134/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3135
3136static bfd_vma
3137tpoff (struct bfd_link_info *info, bfd_vma address)
3138{
3139 struct elf_link_hash_table *htab = elf_hash_table (info);
3140
3141 /* If tls_sec is NULL, we should have signalled an error already. */
3142 if (htab->tls_sec == NULL)
3143 return 0;
68ffbac6 3144 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3145 tcbhead structure which has 2 pointer fields. */
68ffbac6 3146 return (address - htab->tls_sec->vma
9b52905e
NC
3147 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3148}
3149
c46b7515
AM
3150/* Perform a final link. */
3151
b34976b6 3152static bfd_boolean
c39a58e6 3153elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3154{
6d4b2867
JDA
3155 struct stat buf;
3156
4dc86686 3157 /* Invoke the regular ELF linker to do all the work. */
c152c796 3158 if (!bfd_elf_final_link (abfd, info))
b34976b6 3159 return FALSE;
c46b7515
AM
3160
3161 /* If we're producing a final executable, sort the contents of the
985142a4 3162 unwind section. */
0e1862bb 3163 if (bfd_link_relocatable (info))
d9f40817
DA
3164 return TRUE;
3165
6d4b2867
JDA
3166 /* Do not attempt to sort non-regular files. This is here
3167 especially for configure scripts and kernel builds which run
3168 tests with "ld [...] -o /dev/null". */
3169 if (stat (abfd->filename, &buf) != 0
3170 || !S_ISREG(buf.st_mode))
3171 return TRUE;
3172
46fe4e66 3173 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3174}
3175
3176/* Record the lowest address for the data and text segments. */
3177
3178static void
2ea37f1c 3179hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3180{
83c81bfe 3181 struct elf32_hppa_link_hash_table *htab;
c46b7515 3182
875c0872 3183 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3184 if (htab == NULL)
3185 return;
c46b7515
AM
3186
3187 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3188 {
2ea37f1c
NC
3189 bfd_vma value;
3190 Elf_Internal_Phdr *p;
3191
3192 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3193 BFD_ASSERT (p != NULL);
3194 value = p->p_vaddr;
c46b7515
AM
3195
3196 if ((section->flags & SEC_READONLY) != 0)
3197 {
83c81bfe
AM
3198 if (value < htab->text_segment_base)
3199 htab->text_segment_base = value;
c46b7515
AM
3200 }
3201 else
3202 {
83c81bfe
AM
3203 if (value < htab->data_segment_base)
3204 htab->data_segment_base = value;
c46b7515
AM
3205 }
3206 }
3207}
3208
30667bf3
AM
3209/* Perform a relocation as part of a final link. */
3210
3211static bfd_reloc_status_type
c39a58e6
AM
3212final_link_relocate (asection *input_section,
3213 bfd_byte *contents,
875c0872 3214 const Elf_Internal_Rela *rela,
c39a58e6
AM
3215 bfd_vma value,
3216 struct elf32_hppa_link_hash_table *htab,
3217 asection *sym_sec,
875c0872 3218 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3219 struct bfd_link_info *info)
30667bf3
AM
3220{
3221 int insn;
875c0872 3222 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3223 unsigned int orig_r_type = r_type;
30667bf3
AM
3224 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3225 int r_format = howto->bitsize;
3226 enum hppa_reloc_field_selector_type_alt r_field;
3227 bfd *input_bfd = input_section->owner;
875c0872 3228 bfd_vma offset = rela->r_offset;
30667bf3
AM
3229 bfd_vma max_branch_offset = 0;
3230 bfd_byte *hit_data = contents + offset;
875c0872 3231 bfd_signed_vma addend = rela->r_addend;
30667bf3 3232 bfd_vma location;
875c0872 3233 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3234 int val;
30667bf3
AM
3235
3236 if (r_type == R_PARISC_NONE)
3237 return bfd_reloc_ok;
3238
3239 insn = bfd_get_32 (input_bfd, hit_data);
3240
3241 /* Find out where we are and where we're going. */
3242 location = (offset +
3243 input_section->output_offset +
3244 input_section->output_section->vma);
3245
a252afa4
DA
3246 /* If we are not building a shared library, convert DLTIND relocs to
3247 DPREL relocs. */
0e1862bb 3248 if (!bfd_link_pic (info))
a252afa4
DA
3249 {
3250 switch (r_type)
4fc8051d
AM
3251 {
3252 case R_PARISC_DLTIND21L:
143bb599
DA
3253 case R_PARISC_TLS_GD21L:
3254 case R_PARISC_TLS_LDM21L:
3255 case R_PARISC_TLS_IE21L:
4fc8051d 3256 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3257 break;
3258
4fc8051d 3259 case R_PARISC_DLTIND14R:
143bb599
DA
3260 case R_PARISC_TLS_GD14R:
3261 case R_PARISC_TLS_LDM14R:
3262 case R_PARISC_TLS_IE14R:
4fc8051d 3263 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3264 break;
3265
4fc8051d
AM
3266 case R_PARISC_DLTIND14F:
3267 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3268 break;
3269 }
3270 }
3271
30667bf3
AM
3272 switch (r_type)
3273 {
3274 case R_PARISC_PCREL12F:
3275 case R_PARISC_PCREL17F:
3276 case R_PARISC_PCREL22F:
067fa4a6
AM
3277 /* If this call should go via the plt, find the import stub in
3278 the stub hash. */
30667bf3
AM
3279 if (sym_sec == NULL
3280 || sym_sec->output_section == NULL
875c0872 3281 || (hh != NULL
a63e02c7
DA
3282 && hh->eh.plt.offset != (bfd_vma) -1
3283 && hh->eh.dynindx != -1
875c0872 3284 && !hh->plabel
0e1862bb 3285 && (bfd_link_pic (info)
a63e02c7
DA
3286 || !hh->eh.def_regular
3287 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3288 {
875c0872
DA
3289 hsh = hppa_get_stub_entry (input_section, sym_sec,
3290 hh, rela, htab);
3291 if (hsh != NULL)
30667bf3 3292 {
875c0872
DA
3293 value = (hsh->stub_offset
3294 + hsh->stub_sec->output_offset
3295 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3296 addend = 0;
3297 }
875c0872 3298 else if (sym_sec == NULL && hh != NULL
a63e02c7 3299 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3300 {
db20fd76
AM
3301 /* It's OK if undefined weak. Calls to undefined weak
3302 symbols behave as if the "called" function
3303 immediately returns. We can thus call to a weak
3304 function without first checking whether the function
3305 is defined. */
30667bf3 3306 value = location;
db20fd76 3307 addend = 8;
30667bf3
AM
3308 }
3309 else
f09ebc7d 3310 return bfd_reloc_undefined;
30667bf3
AM
3311 }
3312 /* Fall thru. */
3313
3314 case R_PARISC_PCREL21L:
3315 case R_PARISC_PCREL17C:
3316 case R_PARISC_PCREL17R:
3317 case R_PARISC_PCREL14R:
3318 case R_PARISC_PCREL14F:
36751eee 3319 case R_PARISC_PCREL32:
30667bf3
AM
3320 /* Make it a pc relative offset. */
3321 value -= location;
3322 addend -= 8;
3323 break;
3324
3325 case R_PARISC_DPREL21L:
3326 case R_PARISC_DPREL14R:
3327 case R_PARISC_DPREL14F:
a252afa4
DA
3328 /* Convert instructions that use the linkage table pointer (r19) to
3329 instructions that use the global data pointer (dp). This is the
3330 most efficient way of using PIC code in an incomplete executable,
3331 but the user must follow the standard runtime conventions for
3332 accessing data for this to work. */
143bb599 3333 if (orig_r_type != r_type)
a252afa4 3334 {
143bb599
DA
3335 if (r_type == R_PARISC_DPREL21L)
3336 {
3337 /* GCC sometimes uses a register other than r19 for the
3338 operation, so we must convert any addil instruction
3339 that uses this relocation. */
3340 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3341 insn = ADDIL_DP;
3342 else
3343 /* We must have a ldil instruction. It's too hard to find
3344 and convert the associated add instruction, so issue an
3345 error. */
4eca0228 3346 _bfd_error_handler
695344c0 3347 /* xgettext:c-format */
d42c267e 3348 (_("%B(%A+%#Lx): %s fixup for insn %#x is not supported in a non-shared link"),
143bb599
DA
3349 input_bfd,
3350 input_section,
d42c267e 3351 offset,
143bb599
DA
3352 howto->name,
3353 insn);
3354 }
3355 else if (r_type == R_PARISC_DPREL14F)
3356 {
3357 /* This must be a format 1 load/store. Change the base
3358 register to dp. */
3359 insn = (insn & 0xfc1ffff) | (27 << 21);
3360 }
a252afa4
DA
3361 }
3362
143bb599
DA
3363 /* For all the DP relative relocations, we need to examine the symbol's
3364 section. If it has no section or if it's a code section, then
3365 "data pointer relative" makes no sense. In that case we don't
3366 adjust the "value", and for 21 bit addil instructions, we change the
3367 source addend register from %dp to %r0. This situation commonly
3368 arises for undefined weak symbols and when a variable's "constness"
3369 is declared differently from the way the variable is defined. For
3370 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3371 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3372 {
3373 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3374 == (((int) OP_ADDIL << 26) | (27 << 21)))
3375 {
3376 insn &= ~ (0x1f << 21);
30667bf3
AM
3377 }
3378 /* Now try to make things easy for the dynamic linker. */
3379
3380 break;
3381 }
74d1c347 3382 /* Fall thru. */
30667bf3
AM
3383
3384 case R_PARISC_DLTIND21L:
3385 case R_PARISC_DLTIND14R:
3386 case R_PARISC_DLTIND14F:
143bb599
DA
3387 case R_PARISC_TLS_GD21L:
3388 case R_PARISC_TLS_LDM21L:
3389 case R_PARISC_TLS_IE21L:
9b52905e 3390 case R_PARISC_TLS_GD14R:
9b52905e 3391 case R_PARISC_TLS_LDM14R:
9b52905e 3392 case R_PARISC_TLS_IE14R:
30667bf3
AM
3393 value -= elf_gp (input_section->output_section->owner);
3394 break;
3395
c46b7515
AM
3396 case R_PARISC_SEGREL32:
3397 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3398 value -= htab->text_segment_base;
c46b7515 3399 else
83c81bfe 3400 value -= htab->data_segment_base;
c46b7515
AM
3401 break;
3402
30667bf3
AM
3403 default:
3404 break;
3405 }
3406
3407 switch (r_type)
3408 {
3409 case R_PARISC_DIR32:
47d89dba 3410 case R_PARISC_DIR14F:
30667bf3
AM
3411 case R_PARISC_DIR17F:
3412 case R_PARISC_PCREL17C:
3413 case R_PARISC_PCREL14F:
36751eee 3414 case R_PARISC_PCREL32:
30667bf3
AM
3415 case R_PARISC_DPREL14F:
3416 case R_PARISC_PLABEL32:
3417 case R_PARISC_DLTIND14F:
3418 case R_PARISC_SEGBASE:
3419 case R_PARISC_SEGREL32:
9b52905e
NC
3420 case R_PARISC_TLS_DTPMOD32:
3421 case R_PARISC_TLS_DTPOFF32:
3422 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3423 r_field = e_fsel;
3424 break;
3425
1bf42538 3426 case R_PARISC_DLTIND21L:
30667bf3 3427 case R_PARISC_PCREL21L:
30667bf3 3428 case R_PARISC_PLABEL21L:
1bf42538
JL
3429 r_field = e_lsel;
3430 break;
3431
3432 case R_PARISC_DIR21L:
3433 case R_PARISC_DPREL21L:
9b52905e
NC
3434 case R_PARISC_TLS_GD21L:
3435 case R_PARISC_TLS_LDM21L:
3436 case R_PARISC_TLS_LDO21L:
3437 case R_PARISC_TLS_IE21L:
3438 case R_PARISC_TLS_LE21L:
30667bf3
AM
3439 r_field = e_lrsel;
3440 break;
3441
30667bf3 3442 case R_PARISC_PCREL17R:
30667bf3 3443 case R_PARISC_PCREL14R:
30667bf3
AM
3444 case R_PARISC_PLABEL14R:
3445 case R_PARISC_DLTIND14R:
1bf42538
JL
3446 r_field = e_rsel;
3447 break;
3448
3449 case R_PARISC_DIR17R:
3450 case R_PARISC_DIR14R:
3451 case R_PARISC_DPREL14R:
9b52905e
NC
3452 case R_PARISC_TLS_GD14R:
3453 case R_PARISC_TLS_LDM14R:
3454 case R_PARISC_TLS_LDO14R:
3455 case R_PARISC_TLS_IE14R:
3456 case R_PARISC_TLS_LE14R:
30667bf3
AM
3457 r_field = e_rrsel;
3458 break;
3459
3460 case R_PARISC_PCREL12F:
3461 case R_PARISC_PCREL17F:
3462 case R_PARISC_PCREL22F:
3463 r_field = e_fsel;
3464
3465 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3466 {
3467 max_branch_offset = (1 << (17-1)) << 2;
3468 }
3469 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3470 {
3471 max_branch_offset = (1 << (12-1)) << 2;
3472 }
3473 else
3474 {
3475 max_branch_offset = (1 << (22-1)) << 2;
3476 }
3477
3478 /* sym_sec is NULL on undefined weak syms or when shared on
3479 undefined syms. We've already checked for a stub for the
3480 shared undefined case. */
3481 if (sym_sec == NULL)
3482 break;
3483
3484 /* If the branch is out of reach, then redirect the
3485 call to the local stub for this function. */
3486 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3487 {
875c0872
DA
3488 hsh = hppa_get_stub_entry (input_section, sym_sec,
3489 hh, rela, htab);
3490 if (hsh == NULL)
f09ebc7d 3491 return bfd_reloc_undefined;
30667bf3
AM
3492
3493 /* Munge up the value and addend so that we call the stub
3494 rather than the procedure directly. */
875c0872
DA
3495 value = (hsh->stub_offset
3496 + hsh->stub_sec->output_offset
3497 + hsh->stub_sec->output_section->vma
30667bf3
AM
3498 - location);
3499 addend = -8;
3500 }
3501 break;
3502
3503 /* Something we don't know how to handle. */
3504 default:
3505 return bfd_reloc_notsupported;
3506 }
3507
3508 /* Make sure we can reach the stub. */
3509 if (max_branch_offset != 0
3510 && value + addend + max_branch_offset >= 2*max_branch_offset)
3511 {
4eca0228 3512 _bfd_error_handler
695344c0 3513 /* xgettext:c-format */
d42c267e 3514 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
d003868e
AM
3515 input_bfd,
3516 input_section,
d42c267e 3517 offset,
a63e02c7 3518 hsh->bh_root.string);
ce757d15 3519 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3520 return bfd_reloc_notsupported;
3521 }
3522
3523 val = hppa_field_adjust (value, addend, r_field);
3524
3525 switch (r_type)
3526 {
3527 case R_PARISC_PCREL12F:
3528 case R_PARISC_PCREL17C:
3529 case R_PARISC_PCREL17F:
3530 case R_PARISC_PCREL17R:
3531 case R_PARISC_PCREL22F:
3532 case R_PARISC_DIR17F:
3533 case R_PARISC_DIR17R:
3534 /* This is a branch. Divide the offset by four.
3535 Note that we need to decide whether it's a branch or
3536 otherwise by inspecting the reloc. Inspecting insn won't
3537 work as insn might be from a .word directive. */
3538 val >>= 2;
3539 break;
3540
3541 default:
3542 break;
3543 }
3544
3545 insn = hppa_rebuild_insn (insn, val, r_format);
3546
3547 /* Update the instruction word. */
74d1c347 3548 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3549 return bfd_reloc_ok;
3550}
3551
30667bf3
AM
3552/* Relocate an HPPA ELF section. */
3553
b34976b6 3554static bfd_boolean
c39a58e6
AM
3555elf32_hppa_relocate_section (bfd *output_bfd,
3556 struct bfd_link_info *info,
3557 bfd *input_bfd,
3558 asection *input_section,
3559 bfd_byte *contents,
3560 Elf_Internal_Rela *relocs,
3561 Elf_Internal_Sym *local_syms,
3562 asection **local_sections)
30667bf3 3563{
30667bf3 3564 bfd_vma *local_got_offsets;
83c81bfe 3565 struct elf32_hppa_link_hash_table *htab;
30667bf3 3566 Elf_Internal_Shdr *symtab_hdr;
875c0872 3567 Elf_Internal_Rela *rela;
30667bf3 3568 Elf_Internal_Rela *relend;
30667bf3
AM
3569
3570 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3571
83c81bfe 3572 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3573 if (htab == NULL)
3574 return FALSE;
3575
74d1c347 3576 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3577
875c0872 3578 rela = relocs;
30667bf3 3579 relend = relocs + input_section->reloc_count;
875c0872 3580 for (; rela < relend; rela++)
30667bf3
AM
3581 {
3582 unsigned int r_type;
3583 reloc_howto_type *howto;
3584 unsigned int r_symndx;
875c0872 3585 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3586 Elf_Internal_Sym *sym;
3587 asection *sym_sec;
3588 bfd_vma relocation;
875c0872 3589 bfd_reloc_status_type rstatus;
30667bf3 3590 const char *sym_name;
b34976b6
AM
3591 bfd_boolean plabel;
3592 bfd_boolean warned_undef;
30667bf3 3593
875c0872 3594 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3595 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3596 {
3597 bfd_set_error (bfd_error_bad_value);
b34976b6 3598 return FALSE;
30667bf3
AM
3599 }
3600 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3601 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3602 continue;
3603
875c0872
DA
3604 r_symndx = ELF32_R_SYM (rela->r_info);
3605 hh = NULL;
30667bf3
AM
3606 sym = NULL;
3607 sym_sec = NULL;
b34976b6 3608 warned_undef = FALSE;
30667bf3
AM
3609 if (r_symndx < symtab_hdr->sh_info)
3610 {
3611 /* This is a local symbol, h defaults to NULL. */
3612 sym = local_syms + r_symndx;
3613 sym_sec = local_sections[r_symndx];
875c0872 3614 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3615 }
3616 else
3617 {
875c0872 3618 struct elf_link_hash_entry *eh;
62d887d4 3619 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3620 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3621
875c0872 3622 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3623 r_symndx, symtab_hdr, sym_hashes,
875c0872 3624 eh, sym_sec, relocation,
62d887d4
L
3625 unresolved_reloc, warned_undef,
3626 ignored);
560e09e9 3627
0e1862bb 3628 if (!bfd_link_relocatable (info)
ab96bf03 3629 && relocation == 0
875c0872
DA
3630 && eh->root.type != bfd_link_hash_defined
3631 && eh->root.type != bfd_link_hash_defweak
3632 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3633 {
59c2e50f 3634 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3635 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3636 && eh->type == STT_PARISC_MILLI)
560e09e9 3637 {
1a72702b
AM
3638 (*info->callbacks->undefined_symbol)
3639 (info, eh_name (eh), input_bfd,
3640 input_section, rela->r_offset, FALSE);
560e09e9
NC
3641 warned_undef = TRUE;
3642 }
30667bf3 3643 }
875c0872 3644 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3645 }
3646
dbaa2011 3647 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3648 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3649 rela, 1, relend,
3650 elf_hppa_howto_table + r_type, 0,
e4067dbb 3651 contents);
ab96bf03 3652
0e1862bb 3653 if (bfd_link_relocatable (info))
ab96bf03
AM
3654 continue;
3655
30667bf3 3656 /* Do any required modifications to the relocation value, and
25f72752
AM
3657 determine what types of dynamic info we need to output, if
3658 any. */
74d1c347 3659 plabel = 0;
30667bf3
AM
3660 switch (r_type)
3661 {
3662 case R_PARISC_DLTIND14F:
3663 case R_PARISC_DLTIND14R:
3664 case R_PARISC_DLTIND21L:
ce757d15
AM
3665 {
3666 bfd_vma off;
d336fa6d
AM
3667 bfd_boolean do_got = FALSE;
3668 bfd_boolean reloc = bfd_link_pic (info);
ce757d15
AM
3669
3670 /* Relocation is to the entry for this symbol in the
3671 global offset table. */
875c0872 3672 if (hh != NULL)
ce757d15 3673 {
b34976b6 3674 bfd_boolean dyn;
ce757d15 3675
a63e02c7
DA
3676 off = hh->eh.got.offset;
3677 dyn = htab->etab.dynamic_sections_created;
d336fa6d
AM
3678 reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)
3679 && (reloc
3680 || (hh->eh.dynindx != -1
3681 && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))));
3682 if (!reloc
3683 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3684 bfd_link_pic (info),
3685 &hh->eh))
ce757d15
AM
3686 {
3687 /* If we aren't going to call finish_dynamic_symbol,
3688 then we need to handle initialisation of the .got
3689 entry and create needed relocs here. Since the
3690 offset must always be a multiple of 4, we use the
3691 least significant bit to record whether we have
3692 initialised it already. */
3693 if ((off & 1) != 0)
3694 off &= ~1;
3695 else
3696 {
a63e02c7 3697 hh->eh.got.offset |= 1;
d336fa6d 3698 do_got = TRUE;
ce757d15
AM
3699 }
3700 }
3701 }
3702 else
3703 {
3704 /* Local symbol case. */
3705 if (local_got_offsets == NULL)
3706 abort ();
3707
3708 off = local_got_offsets[r_symndx];
3709
3710 /* The offset must always be a multiple of 4. We use
3711 the least significant bit to record whether we have
3712 already generated the necessary reloc. */
3713 if ((off & 1) != 0)
3714 off &= ~1;
3715 else
3716 {
3717 local_got_offsets[r_symndx] |= 1;
d336fa6d 3718 do_got = TRUE;
ce757d15
AM
3719 }
3720 }
68fb2e56 3721
ce757d15
AM
3722 if (do_got)
3723 {
d336fa6d 3724 if (reloc)
ce757d15
AM
3725 {
3726 /* Output a dynamic relocation for this GOT entry.
3727 In this case it is relative to the base of the
3728 object because the symbol index is zero. */
3729 Elf_Internal_Rela outrel;
947216bf 3730 bfd_byte *loc;
ce558b89 3731 asection *sec = htab->etab.srelgot;
ce757d15
AM
3732
3733 outrel.r_offset = (off
ce558b89
AM
3734 + htab->etab.sgot->output_offset
3735 + htab->etab.sgot->output_section->vma);
ce757d15
AM
3736 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3737 outrel.r_addend = relocation;
875c0872
DA
3738 loc = sec->contents;
3739 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3740 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3741 }
3742 else
30667bf3 3743 bfd_put_32 (output_bfd, relocation,
ce558b89 3744 htab->etab.sgot->contents + off);
ce757d15 3745 }
30667bf3 3746
ce757d15
AM
3747 if (off >= (bfd_vma) -2)
3748 abort ();
30667bf3 3749
ce757d15
AM
3750 /* Add the base of the GOT to the relocation value. */
3751 relocation = (off
ce558b89
AM
3752 + htab->etab.sgot->output_offset
3753 + htab->etab.sgot->output_section->vma);
ce757d15 3754 }
30667bf3 3755 break;
252b5132 3756
c46b7515
AM
3757 case R_PARISC_SEGREL32:
3758 /* If this is the first SEGREL relocation, then initialize
3759 the segment base values. */
83c81bfe
AM
3760 if (htab->text_segment_base == (bfd_vma) -1)
3761 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3762 break;
3763
30667bf3
AM
3764 case R_PARISC_PLABEL14R:
3765 case R_PARISC_PLABEL21L:
3766 case R_PARISC_PLABEL32:
a63e02c7 3767 if (htab->etab.dynamic_sections_created)
252b5132 3768 {
ce757d15 3769 bfd_vma off;
b34976b6 3770 bfd_boolean do_plt = 0;
74d1c347
AM
3771 /* If we have a global symbol with a PLT slot, then
3772 redirect this relocation to it. */
875c0872 3773 if (hh != NULL)
74d1c347 3774 {
a63e02c7 3775 off = hh->eh.plt.offset;
0e1862bb
L
3776 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3777 bfd_link_pic (info),
a63e02c7 3778 &hh->eh))
8dea1268
AM
3779 {
3780 /* In a non-shared link, adjust_dynamic_symbols
3781 isn't called for symbols forced local. We
dc810e39 3782 need to write out the plt entry here. */
8dea1268
AM
3783 if ((off & 1) != 0)
3784 off &= ~1;
3785 else
3786 {
a63e02c7 3787 hh->eh.plt.offset |= 1;
ce757d15 3788 do_plt = 1;
8dea1268
AM
3789 }
3790 }
74d1c347
AM
3791 }
3792 else
3793 {
68fb2e56
AM
3794 bfd_vma *local_plt_offsets;
3795
3796 if (local_got_offsets == NULL)
3797 abort ();
74d1c347 3798
68fb2e56
AM
3799 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3800 off = local_plt_offsets[r_symndx];
74d1c347
AM
3801
3802 /* As for the local .got entry case, we use the last
3803 bit to record whether we've already initialised
3804 this local .plt entry. */
3805 if ((off & 1) != 0)
3806 off &= ~1;
ce757d15
AM
3807 else
3808 {
3809 local_plt_offsets[r_symndx] |= 1;
3810 do_plt = 1;
3811 }
3812 }
3813
3814 if (do_plt)
3815 {
0e1862bb 3816 if (bfd_link_pic (info))
ce757d15
AM
3817 {
3818 /* Output a dynamic IPLT relocation for this
3819 PLT entry. */
3820 Elf_Internal_Rela outrel;
947216bf 3821 bfd_byte *loc;
ce558b89 3822 asection *s = htab->etab.srelplt;
ce757d15
AM
3823
3824 outrel.r_offset = (off
ce558b89
AM
3825 + htab->etab.splt->output_offset
3826 + htab->etab.splt->output_section->vma);
ce757d15
AM
3827 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3828 outrel.r_addend = relocation;
947216bf
AM
3829 loc = s->contents;
3830 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3831 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3832 }
74d1c347
AM
3833 else
3834 {
3835 bfd_put_32 (output_bfd,
3836 relocation,
ce558b89 3837 htab->etab.splt->contents + off);
74d1c347 3838 bfd_put_32 (output_bfd,
ce558b89
AM
3839 elf_gp (htab->etab.splt->output_section->owner),
3840 htab->etab.splt->contents + off + 4);
74d1c347
AM
3841 }
3842 }
3843
68fb2e56 3844 if (off >= (bfd_vma) -2)
49e9d0d3 3845 abort ();
74d1c347
AM
3846
3847 /* PLABELs contain function pointers. Relocation is to
3848 the entry for the function in the .plt. The magic +2
3849 offset signals to $$dyncall that the function pointer
3850 is in the .plt and thus has a gp pointer too.
3851 Exception: Undefined PLABELs should have a value of
3852 zero. */
875c0872 3853 if (hh == NULL
a63e02c7
DA
3854 || (hh->eh.root.type != bfd_link_hash_undefweak
3855 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3856 {
3857 relocation = (off
ce558b89
AM
3858 + htab->etab.splt->output_offset
3859 + htab->etab.splt->output_section->vma
74d1c347
AM
3860 + 2);
3861 }
3862 plabel = 1;
30667bf3 3863 }
1a0670f3 3864 /* Fall through. */
30667bf3
AM
3865
3866 case R_PARISC_DIR17F:
3867 case R_PARISC_DIR17R:
47d89dba 3868 case R_PARISC_DIR14F:
30667bf3
AM
3869 case R_PARISC_DIR14R:
3870 case R_PARISC_DIR21L:
3871 case R_PARISC_DPREL14F:
3872 case R_PARISC_DPREL14R:
3873 case R_PARISC_DPREL21L:
3874 case R_PARISC_DIR32:
b1e24c02 3875 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3876 break;
3877
30667bf3 3878 /* The reloc types handled here and this conditional
56882138 3879 expression must match the code in ..check_relocs and
ec338859 3880 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3881 as in ..check_relocs, with some extra conditions (dynindx
3882 test in this case) to cater for relocs removed by
d336fa6d 3883 allocate_dynrelocs. */
0e1862bb 3884 if ((bfd_link_pic (info)
d336fa6d
AM
3885 && !(hh != NULL
3886 && ((hh->eh.root.type == bfd_link_hash_undefined
3887 && ELF_ST_VISIBILITY (hh->eh.other) != STV_DEFAULT)
3888 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)))
446f2863 3889 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3890 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
d336fa6d
AM
3891 || (ELIMINATE_COPY_RELOCS
3892 && !bfd_link_pic (info)
875c0872 3893 && hh != NULL
a63e02c7
DA
3894 && hh->eh.dynindx != -1
3895 && !hh->eh.non_got_ref
d336fa6d 3896 && !hh->eh.def_regular))
30667bf3
AM
3897 {
3898 Elf_Internal_Rela outrel;
b34976b6 3899 bfd_boolean skip;
98ceb8ce 3900 asection *sreloc;
947216bf 3901 bfd_byte *loc;
252b5132 3902
30667bf3
AM
3903 /* When generating a shared object, these relocations
3904 are copied into the output file to be resolved at run
3905 time. */
252b5132 3906
875c0872 3907 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3908 outrel.r_offset =
3909 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3910 rela->r_offset);
0bb2d96a
JJ
3911 skip = (outrel.r_offset == (bfd_vma) -1
3912 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3913 outrel.r_offset += (input_section->output_offset
3914 + input_section->output_section->vma);
68ffbac6 3915
30667bf3 3916 if (skip)
252b5132 3917 {
30667bf3 3918 memset (&outrel, 0, sizeof (outrel));
252b5132 3919 }
875c0872 3920 else if (hh != NULL
a63e02c7 3921 && hh->eh.dynindx != -1
74d1c347 3922 && (plabel
446f2863 3923 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 3924 || !bfd_link_pic (info)
a496fbc8 3925 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 3926 || !hh->eh.def_regular))
252b5132 3927 {
a63e02c7 3928 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
3929 }
3930 else /* It's a local symbol, or one marked to become local. */
3931 {
3932 int indx = 0;
edd21aca 3933
30667bf3
AM
3934 /* Add the absolute offset of the symbol. */
3935 outrel.r_addend += relocation;
edd21aca 3936
74d1c347
AM
3937 /* Global plabels need to be processed by the
3938 dynamic linker so that functions have at most one
3939 fptr. For this reason, we need to differentiate
3940 between global and local plabels, which we do by
3941 providing the function symbol for a global plabel
3942 reloc, and no symbol for local plabels. */
3943 if (! plabel
3944 && sym_sec != NULL
30667bf3
AM
3945 && sym_sec->output_section != NULL
3946 && ! bfd_is_abs_section (sym_sec))
252b5132 3947 {
74541ad4
AM
3948 asection *osec;
3949
3950 osec = sym_sec->output_section;
3951 indx = elf_section_data (osec)->dynindx;
3952 if (indx == 0)
3953 {
3954 osec = htab->etab.text_index_section;
3955 indx = elf_section_data (osec)->dynindx;
3956 }
3957 BFD_ASSERT (indx != 0);
4b71bec0 3958
30667bf3
AM
3959 /* We are turning this relocation into one
3960 against a section symbol, so subtract out the
3961 output section's address but not the offset
3962 of the input section in the output section. */
74541ad4 3963 outrel.r_addend -= osec->vma;
252b5132 3964 }
252b5132 3965
30667bf3
AM
3966 outrel.r_info = ELF32_R_INFO (indx, r_type);
3967 }
98ceb8ce
AM
3968 sreloc = elf_section_data (input_section)->sreloc;
3969 if (sreloc == NULL)
3970 abort ();
3971
947216bf
AM
3972 loc = sreloc->contents;
3973 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 3974 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
3975 }
3976 break;
68ffbac6 3977
9b52905e
NC
3978 case R_PARISC_TLS_LDM21L:
3979 case R_PARISC_TLS_LDM14R:
3980 {
3981 bfd_vma off;
68ffbac6 3982
9b52905e
NC
3983 off = htab->tls_ldm_got.offset;
3984 if (off & 1)
3985 off &= ~1;
3986 else
3987 {
3988 Elf_Internal_Rela outrel;
3989 bfd_byte *loc;
3990
68ffbac6 3991 outrel.r_offset = (off
ce558b89
AM
3992 + htab->etab.sgot->output_section->vma
3993 + htab->etab.sgot->output_offset);
9b52905e
NC
3994 outrel.r_addend = 0;
3995 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
ce558b89
AM
3996 loc = htab->etab.srelgot->contents;
3997 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
9b52905e
NC
3998
3999 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4000 htab->tls_ldm_got.offset |= 1;
4001 }
4002
4003 /* Add the base of the GOT to the relocation value. */
4004 relocation = (off
ce558b89
AM
4005 + htab->etab.sgot->output_offset
4006 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4007
4008 break;
4009 }
4010
4011 case R_PARISC_TLS_LDO21L:
4012 case R_PARISC_TLS_LDO14R:
4013 relocation -= dtpoff_base (info);
4014 break;
4015
4016 case R_PARISC_TLS_GD21L:
4017 case R_PARISC_TLS_GD14R:
4018 case R_PARISC_TLS_IE21L:
4019 case R_PARISC_TLS_IE14R:
4020 {
4021 bfd_vma off;
4022 int indx;
4023 char tls_type;
4024
4025 indx = 0;
4026 if (hh != NULL)
4027 {
4028 bfd_boolean dyn;
4029 dyn = htab->etab.dynamic_sections_created;
4030
0e1862bb
L
4031 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4032 bfd_link_pic (info),
4033 &hh->eh)
4034 && (!bfd_link_pic (info)
9b52905e
NC
4035 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4036 {
4037 indx = hh->eh.dynindx;
4038 }
4039 off = hh->eh.got.offset;
4040 tls_type = hh->tls_type;
4041 }
4042 else
4043 {
4044 off = local_got_offsets[r_symndx];
4045 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4046 }
4047
4048 if (tls_type == GOT_UNKNOWN)
4049 abort ();
4050
4051 if ((off & 1) != 0)
4052 off &= ~1;
4053 else
4054 {
4055 bfd_boolean need_relocs = FALSE;
4056 Elf_Internal_Rela outrel;
4057 bfd_byte *loc = NULL;
4058 int cur_off = off;
4059
4060 /* The GOT entries have not been initialized yet. Do it
4061 now, and emit any relocations. If both an IE GOT and a
4062 GD GOT are necessary, we emit the GD first. */
4063
0e1862bb 4064 if ((bfd_link_pic (info) || indx != 0)
9b52905e
NC
4065 && (hh == NULL
4066 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4067 || hh->eh.root.type != bfd_link_hash_undefweak))
4068 {
4069 need_relocs = TRUE;
ce558b89 4070 loc = htab->etab.srelgot->contents;
9b52905e 4071 /* FIXME (CAO): Should this be reloc_count++ ? */
ce558b89 4072 loc += htab->etab.srelgot->reloc_count * sizeof (Elf32_External_Rela);
9b52905e
NC
4073 }
4074
4075 if (tls_type & GOT_TLS_GD)
4076 {
4077 if (need_relocs)
4078 {
4079 outrel.r_offset = (cur_off
ce558b89
AM
4080 + htab->etab.sgot->output_section->vma
4081 + htab->etab.sgot->output_offset);
9b52905e
NC
4082 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4083 outrel.r_addend = 0;
ce558b89 4084 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + cur_off);
9b52905e 4085 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4086 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4087 loc += sizeof (Elf32_External_Rela);
4088
4089 if (indx == 0)
4090 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4091 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4092 else
4093 {
4094 bfd_put_32 (output_bfd, 0,
ce558b89 4095 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4096 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4097 outrel.r_offset += 4;
4098 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
ce558b89 4099 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4100 loc += sizeof (Elf32_External_Rela);
4101 }
4102 }
4103 else
4104 {
4105 /* If we are not emitting relocations for a
4106 general dynamic reference, then we must be in a
4107 static link or an executable link with the
4108 symbol binding locally. Mark it as belonging
4109 to module 1, the executable. */
4110 bfd_put_32 (output_bfd, 1,
ce558b89 4111 htab->etab.sgot->contents + cur_off);
9b52905e 4112 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4113 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4114 }
4115
4116
4117 cur_off += 8;
4118 }
4119
4120 if (tls_type & GOT_TLS_IE)
4121 {
4122 if (need_relocs)
4123 {
4124 outrel.r_offset = (cur_off
ce558b89
AM
4125 + htab->etab.sgot->output_section->vma
4126 + htab->etab.sgot->output_offset);
9b52905e
NC
4127 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4128
4129 if (indx == 0)
4130 outrel.r_addend = relocation - dtpoff_base (info);
4131 else
4132 outrel.r_addend = 0;
4133
4134 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4135 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4136 loc += sizeof (Elf32_External_Rela);
4137 }
4138 else
4139 bfd_put_32 (output_bfd, tpoff (info, relocation),
ce558b89 4140 htab->etab.sgot->contents + cur_off);
9b52905e
NC
4141
4142 cur_off += 4;
4143 }
4144
4145 if (hh != NULL)
4146 hh->eh.got.offset |= 1;
4147 else
4148 local_got_offsets[r_symndx] |= 1;
4149 }
4150
4151 if ((tls_type & GOT_TLS_GD)
4152 && r_type != R_PARISC_TLS_GD21L
4153 && r_type != R_PARISC_TLS_GD14R)
4154 off += 2 * GOT_ENTRY_SIZE;
4155
4156 /* Add the base of the GOT to the relocation value. */
4157 relocation = (off
ce558b89
AM
4158 + htab->etab.sgot->output_offset
4159 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4160
4161 break;
4162 }
4163
4164 case R_PARISC_TLS_LE21L:
4165 case R_PARISC_TLS_LE14R:
4166 {
4167 relocation = tpoff (info, relocation);
4168 break;
4169 }
4170 break;
edd21aca 4171
30667bf3
AM
4172 default:
4173 break;
4174 }
252b5132 4175
875c0872
DA
4176 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4177 htab, sym_sec, hh, info);
252b5132 4178
875c0872 4179 if (rstatus == bfd_reloc_ok)
30667bf3 4180 continue;
252b5132 4181
875c0872 4182 if (hh != NULL)
9b52905e 4183 sym_name = hh_name (hh);
30667bf3
AM
4184 else
4185 {
4186 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4187 symtab_hdr->sh_link,
4188 sym->st_name);
4189 if (sym_name == NULL)
b34976b6 4190 return FALSE;
30667bf3
AM
4191 if (*sym_name == '\0')
4192 sym_name = bfd_section_name (input_bfd, sym_sec);
4193 }
edd21aca 4194
30667bf3 4195 howto = elf_hppa_howto_table + r_type;
252b5132 4196
875c0872 4197 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4198 {
875c0872 4199 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4200 {
4eca0228 4201 _bfd_error_handler
695344c0 4202 /* xgettext:c-format */
d42c267e 4203 (_("%B(%A+%#Lx): cannot handle %s for %s"),
d003868e
AM
4204 input_bfd,
4205 input_section,
d42c267e 4206 rela->r_offset,
f09ebc7d
AM
4207 howto->name,
4208 sym_name);
4209 bfd_set_error (bfd_error_bad_value);
b34976b6 4210 return FALSE;
f09ebc7d 4211 }
30667bf3
AM
4212 }
4213 else
1a72702b
AM
4214 (*info->callbacks->reloc_overflow)
4215 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4216 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4217 }
edd21aca 4218
b34976b6 4219 return TRUE;
30667bf3 4220}
252b5132 4221
30667bf3
AM
4222/* Finish up dynamic symbol handling. We set the contents of various
4223 dynamic sections here. */
252b5132 4224
b34976b6 4225static bfd_boolean
c39a58e6
AM
4226elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4227 struct bfd_link_info *info,
875c0872 4228 struct elf_link_hash_entry *eh,
c39a58e6 4229 Elf_Internal_Sym *sym)
30667bf3 4230{
83c81bfe 4231 struct elf32_hppa_link_hash_table *htab;
875c0872 4232 Elf_Internal_Rela rela;
a252afa4 4233 bfd_byte *loc;
edd21aca 4234
83c81bfe 4235 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4236 if (htab == NULL)
4237 return FALSE;
30667bf3 4238
875c0872 4239 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4240 {
4241 bfd_vma value;
30667bf3 4242
875c0872 4243 if (eh->plt.offset & 1)
8dea1268
AM
4244 abort ();
4245
30667bf3
AM
4246 /* This symbol has an entry in the procedure linkage table. Set
4247 it up.
4248
4249 The format of a plt entry is
74d1c347
AM
4250 <funcaddr>
4251 <__gp>
47d89dba 4252 */
30667bf3 4253 value = 0;
875c0872
DA
4254 if (eh->root.type == bfd_link_hash_defined
4255 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4256 {
875c0872
DA
4257 value = eh->root.u.def.value;
4258 if (eh->root.u.def.section->output_section != NULL)
4259 value += (eh->root.u.def.section->output_offset
4260 + eh->root.u.def.section->output_section->vma);
252b5132 4261 }
edd21aca 4262
a252afa4 4263 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4264 rela.r_offset = (eh->plt.offset
ce558b89
AM
4265 + htab->etab.splt->output_offset
4266 + htab->etab.splt->output_section->vma);
875c0872 4267 if (eh->dynindx != -1)
30667bf3 4268 {
875c0872
DA
4269 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4270 rela.r_addend = 0;
30667bf3 4271 }
ce757d15 4272 else
47d89dba 4273 {
a252afa4
DA
4274 /* This symbol has been marked to become local, and is
4275 used by a plabel so must be kept in the .plt. */
875c0872
DA
4276 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4277 rela.r_addend = value;
47d89dba
AM
4278 }
4279
ce558b89
AM
4280 loc = htab->etab.srelplt->contents;
4281 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4282 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
a252afa4 4283
875c0872 4284 if (!eh->def_regular)
30667bf3
AM
4285 {
4286 /* Mark the symbol as undefined, rather than as defined in
4287 the .plt section. Leave the value alone. */
4288 sym->st_shndx = SHN_UNDEF;
4289 }
4290 }
edd21aca 4291
9b52905e
NC
4292 if (eh->got.offset != (bfd_vma) -1
4293 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
d336fa6d
AM
4294 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0
4295 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
30667bf3 4296 {
d336fa6d
AM
4297 bfd_boolean is_dyn = (eh->dynindx != -1
4298 && !SYMBOL_REFERENCES_LOCAL (info, eh));
4299
4300 if (is_dyn || bfd_link_pic (info))
30667bf3 4301 {
d336fa6d
AM
4302 /* This symbol has an entry in the global offset table. Set
4303 it up. */
4304
4305 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4306 + htab->etab.sgot->output_offset
4307 + htab->etab.sgot->output_section->vma);
4308
4309 /* If this is a -Bsymbolic link and the symbol is defined
4310 locally or was forced to be local because of a version
4311 file, we just want to emit a RELATIVE reloc. The entry
4312 in the global offset table will already have been
4313 initialized in the relocate_section function. */
4314 if (!is_dyn)
4315 {
4316 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4317 rela.r_addend = (eh->root.u.def.value
4318 + eh->root.u.def.section->output_offset
4319 + eh->root.u.def.section->output_section->vma);
4320 }
4321 else
4322 {
4323 if ((eh->got.offset & 1) != 0)
4324 abort ();
875c0872 4325
d336fa6d
AM
4326 bfd_put_32 (output_bfd, 0,
4327 htab->etab.sgot->contents + (eh->got.offset & ~1));
4328 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4329 rela.r_addend = 0;
4330 }
edd21aca 4331
d336fa6d
AM
4332 loc = htab->etab.srelgot->contents;
4333 loc += (htab->etab.srelgot->reloc_count++
4334 * sizeof (Elf32_External_Rela));
4335 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4336 }
30667bf3 4337 }
edd21aca 4338
875c0872 4339 if (eh->needs_copy)
30667bf3 4340 {
875c0872 4341 asection *sec;
30667bf3
AM
4342
4343 /* This symbol needs a copy reloc. Set it up. */
4344
875c0872
DA
4345 if (! (eh->dynindx != -1
4346 && (eh->root.type == bfd_link_hash_defined
4347 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4348 abort ();
30667bf3 4349
875c0872
DA
4350 rela.r_offset = (eh->root.u.def.value
4351 + eh->root.u.def.section->output_offset
4352 + eh->root.u.def.section->output_section->vma);
4353 rela.r_addend = 0;
4354 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
afbf7e8e 4355 if (eh->root.u.def.section == htab->etab.sdynrelro)
5474d94f
AM
4356 sec = htab->etab.sreldynrelro;
4357 else
4358 sec = htab->etab.srelbss;
875c0872
DA
4359 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4360 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4361 }
4362
4363 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4364 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4365 {
4366 sym->st_shndx = SHN_ABS;
4367 }
4368
b34976b6 4369 return TRUE;
30667bf3
AM
4370}
4371
98ceb8ce
AM
4372/* Used to decide how to sort relocs in an optimal manner for the
4373 dynamic linker, before writing them out. */
4374
4375static enum elf_reloc_type_class
7e612e98
AM
4376elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4377 const asection *rel_sec ATTRIBUTE_UNUSED,
4378 const Elf_Internal_Rela *rela)
98ceb8ce 4379{
9b52905e 4380 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4381 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4382 check below. */
4383 switch ((int) ELF32_R_TYPE (rela->r_info))
4384 {
4385 case R_PARISC_TLS_DTPMOD32:
4386 case R_PARISC_TLS_DTPOFF32:
4387 case R_PARISC_TLS_TPREL32:
4388 return reloc_class_normal;
4389 }
4390
cf35638d 4391 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4392 return reloc_class_relative;
4393
4394 switch ((int) ELF32_R_TYPE (rela->r_info))
4395 {
4396 case R_PARISC_IPLT:
4397 return reloc_class_plt;
4398 case R_PARISC_COPY:
4399 return reloc_class_copy;
4400 default:
4401 return reloc_class_normal;
4402 }
4403}
4404
30667bf3
AM
4405/* Finish up the dynamic sections. */
4406
b34976b6 4407static bfd_boolean
c39a58e6
AM
4408elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4409 struct bfd_link_info *info)
30667bf3
AM
4410{
4411 bfd *dynobj;
83c81bfe 4412 struct elf32_hppa_link_hash_table *htab;
30667bf3 4413 asection *sdyn;
894891db 4414 asection * sgot;
30667bf3 4415
83c81bfe 4416 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4417 if (htab == NULL)
4418 return FALSE;
4419
a63e02c7 4420 dynobj = htab->etab.dynobj;
30667bf3 4421
ce558b89 4422 sgot = htab->etab.sgot;
894891db
NC
4423 /* A broken linker script might have discarded the dynamic sections.
4424 Catch this here so that we do not seg-fault later on. */
4425 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4426 return FALSE;
4427
3d4d4302 4428 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4429
a63e02c7 4430 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4431 {
4432 Elf32_External_Dyn *dyncon, *dynconend;
4433
49e9d0d3
AM
4434 if (sdyn == NULL)
4435 abort ();
30667bf3
AM
4436
4437 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4438 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4439 for (; dyncon < dynconend; dyncon++)
edd21aca 4440 {
30667bf3
AM
4441 Elf_Internal_Dyn dyn;
4442 asection *s;
4443
4444 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4445
4446 switch (dyn.d_tag)
4447 {
4448 default:
3ac8354b 4449 continue;
30667bf3
AM
4450
4451 case DT_PLTGOT:
4452 /* Use PLTGOT to set the GOT register. */
4453 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4454 break;
4455
4456 case DT_JMPREL:
ce558b89 4457 s = htab->etab.srelplt;
30667bf3 4458 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4459 break;
4460
4461 case DT_PLTRELSZ:
ce558b89 4462 s = htab->etab.srelplt;
eea6121a 4463 dyn.d_un.d_val = s->size;
30667bf3
AM
4464 break;
4465 }
3ac8354b
AM
4466
4467 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4468 }
252b5132 4469 }
edd21aca 4470
894891db 4471 if (sgot != NULL && sgot->size != 0)
30667bf3 4472 {
74d1c347
AM
4473 /* Fill in the first entry in the global offset table.
4474 We use it to point to our dynamic section, if we have one. */
30667bf3 4475 bfd_put_32 (output_bfd,
c39a58e6 4476 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4477 sgot->contents);
30667bf3 4478
74d1c347 4479 /* The second entry is reserved for use by the dynamic linker. */
894891db 4480 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4481
30667bf3 4482 /* Set .got entry size. */
894891db 4483 elf_section_data (sgot->output_section)
74d1c347 4484 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4485 }
4486
ce558b89 4487 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
47d89dba 4488 {
f3c3938c
JDA
4489 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4490 plt stubs and as such the section does not hold a table of fixed-size
4491 entries. */
ce558b89 4492 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4493
83c81bfe 4494 if (htab->need_plt_stub)
47d89dba
AM
4495 {
4496 /* Set up the .plt stub. */
ce558b89
AM
4497 memcpy (htab->etab.splt->contents
4498 + htab->etab.splt->size - sizeof (plt_stub),
47d89dba
AM
4499 plt_stub, sizeof (plt_stub));
4500
ce558b89
AM
4501 if ((htab->etab.splt->output_offset
4502 + htab->etab.splt->output_section->vma
4503 + htab->etab.splt->size)
894891db
NC
4504 != (sgot->output_offset
4505 + sgot->output_section->vma))
47d89dba 4506 {
4eca0228 4507 _bfd_error_handler
47d89dba 4508 (_(".got section not immediately after .plt section"));
b34976b6 4509 return FALSE;
47d89dba
AM
4510 }
4511 }
4512 }
30667bf3 4513
b34976b6 4514 return TRUE;
30667bf3 4515}
252b5132 4516
30667bf3
AM
4517/* Called when writing out an object file to decide the type of a
4518 symbol. */
4519static int
c39a58e6 4520elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4521{
4522 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4523 return STT_PARISC_MILLI;
4524 else
4525 return type;
252b5132
RH
4526}
4527
4528/* Misc BFD support code. */
30667bf3
AM
4529#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4530#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4531#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4532#define elf_info_to_howto elf_hppa_info_to_howto
4533#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4534
252b5132 4535/* Stuff for the BFD linker. */
c46b7515 4536#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4537#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4538#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4539#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3 4540#define elf_backend_check_relocs elf32_hppa_check_relocs
c0e331c7 4541#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
30667bf3
AM
4542#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4543#define elf_backend_fake_sections elf_hppa_fake_sections
4544#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4545#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4546#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4547#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4548#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4549#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3 4550#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
edfc032f
AM
4551#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4552#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4553#define elf_backend_object_p elf32_hppa_object_p
4554#define elf_backend_final_write_processing elf_hppa_final_write_processing
4555#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4556#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4557#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4558
4559#define elf_backend_can_gc_sections 1
51b64d56 4560#define elf_backend_can_refcount 1
30667bf3
AM
4561#define elf_backend_plt_alignment 2
4562#define elf_backend_want_got_plt 0
4563#define elf_backend_plt_readonly 0
4564#define elf_backend_want_plt_sym 0
74d1c347 4565#define elf_backend_got_header_size 8
5474d94f 4566#define elf_backend_want_dynrelro 1
f0fe0e16 4567#define elf_backend_rela_normal 1
64f52338 4568#define elf_backend_dtrel_excludes_plt 1
a8c75b76 4569#define elf_backend_no_page_alias 1
252b5132 4570
6d00b590 4571#define TARGET_BIG_SYM hppa_elf32_vec
252b5132
RH
4572#define TARGET_BIG_NAME "elf32-hppa"
4573#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4574#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4575#define ELF_MACHINE_CODE EM_PARISC
4576#define ELF_MAXPAGESIZE 0x1000
d1036acb 4577#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4578#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4579
4580#include "elf32-target.h"
d952f17a
AM
4581
4582#undef TARGET_BIG_SYM
6d00b590 4583#define TARGET_BIG_SYM hppa_elf32_linux_vec
d952f17a 4584#undef TARGET_BIG_NAME
914dfb0f 4585#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4586#undef ELF_OSABI
9c55345c 4587#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4588#undef elf32_bed
4589#define elf32_bed elf32_hppa_linux_bed
d952f17a 4590
d952f17a 4591#include "elf32-target.h"
225247f0
JT
4592
4593#undef TARGET_BIG_SYM
6d00b590 4594#define TARGET_BIG_SYM hppa_elf32_nbsd_vec
225247f0 4595#undef TARGET_BIG_NAME
914dfb0f 4596#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4597#undef ELF_OSABI
4598#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4599#undef elf32_bed
4600#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4601
4602#include "elf32-target.h"