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252b5132 1/* BFD back-end for HP PA-RISC ELF files.
219d1afa 2 Copyright (C) 1990-2018 Free Software Foundation, Inc.
252b5132 3
30667bf3 4 Original code by
252b5132
RH
5 Center for Software Science
6 Department of Computer Science
7 University of Utah
30667bf3 8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9b52905e
NC
9 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
10 TLS support written by Randolph Chung <tausq@debian.org>
68ffbac6 11
ae9a127f 12 This file is part of BFD, the Binary File Descriptor library.
252b5132 13
ae9a127f
NC
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
cd123cb7 16 the Free Software Foundation; either version 3 of the License, or
ae9a127f 17 (at your option) any later version.
252b5132 18
ae9a127f
NC
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
252b5132 23
ae9a127f
NC
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
cd123cb7
NC
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
252b5132 28
252b5132 29#include "sysdep.h"
3db64b00 30#include "bfd.h"
252b5132
RH
31#include "libbfd.h"
32#include "elf-bfd.h"
9e103c9c
JL
33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
RH
52
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
56
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
30667bf3
AM
59 necessary to build the linker stubs during a link.
60
61 There are a number of different stubs generated by the linker.
62
63 Long branch stub:
64 : ldil LR'X,%r1
65 : be,n RR'X(%sr4,%r1)
66
67 PIC long branch stub:
68 : b,l .+8,%r1
3ee1d854
AM
69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
30667bf3
AM
71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
3ee1d854
AM
74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 76 : bv %r0(%r21)
3ee1d854 77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
3ee1d854
AM
81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
3ee1d854
AM
88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
3ee1d854
AM
98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
875c0872
DA
118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
07d6d2b8 122 Structure/Variable Prefix
875c0872
DA
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
875c0872 135 Always remember to use GNU Coding Style. */
68ffbac6 136
30667bf3
AM
137#define PLT_ENTRY_SIZE 8
138#define GOT_ENTRY_SIZE 4
139#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
140
47d89dba
AM
141static const bfd_byte plt_stub[] =
142{
143 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
144 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
145 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
146#define PLT_STUB_ENTRY (3*4)
147 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
148 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
149 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
150 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
151};
152
30667bf3 153/* Section name for stubs is the associated section name plus this
29942be8
NC
154 string. */
155#define STUB_SUFFIX ".stub"
30667bf3 156
98ceb8ce
AM
157/* We don't need to copy certain PC- or GP-relative dynamic relocs
158 into a shared object's dynamic section. All the relocs of the
159 limited class we are interested in, are absolute. */
160#ifndef RELATIVE_DYNRELOCS
161#define RELATIVE_DYNRELOCS 0
446f2863 162#define IS_ABSOLUTE_RELOC(r_type) 1
287c7eaf 163#define pc_dynrelocs(hh) 0
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164#endif
165
4fc8051d
AM
166/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
167 copying dynamic variables from a shared lib into an app's dynbss
168 section, and instead use a dynamic relocation to point into the
169 shared lib. */
170#define ELIMINATE_COPY_RELOCS 1
171
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NC
172enum elf32_hppa_stub_type
173{
30667bf3
AM
174 hppa_stub_long_branch,
175 hppa_stub_long_branch_shared,
176 hppa_stub_import,
177 hppa_stub_import_shared,
178 hppa_stub_export,
179 hppa_stub_none
180};
181
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NC
182struct elf32_hppa_stub_hash_entry
183{
edd21aca 184 /* Base hash table entry structure. */
a63e02c7 185 struct bfd_hash_entry bh_root;
252b5132 186
edd21aca
AM
187 /* The stub section. */
188 asection *stub_sec;
189
190 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 191 bfd_vma stub_offset;
252b5132
RH
192
193 /* Given the symbol's value and its section we can determine its final
194 value when building the stubs (so the stub knows where to jump. */
30667bf3 195 bfd_vma target_value;
252b5132 196 asection *target_section;
30667bf3
AM
197
198 enum elf32_hppa_stub_type stub_type;
199
200 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 201 struct elf32_hppa_link_hash_entry *hh;
30667bf3 202
25f72752
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203 /* Where this stub is being called from, or, in the case of combined
204 stub sections, the first input section in the group. */
205 asection *id_sec;
252b5132
RH
206};
207
2e684e75
AM
208enum _tls_type
209 {
210 GOT_UNKNOWN = 0,
211 GOT_NORMAL = 1,
212 GOT_TLS_GD = 2,
213 GOT_TLS_LDM = 4,
214 GOT_TLS_IE = 8
215 };
216
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NC
217struct elf32_hppa_link_hash_entry
218{
a63e02c7 219 struct elf_link_hash_entry eh;
30667bf3
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220
221 /* A pointer to the most recently used stub hash entry against this
222 symbol. */
a63e02c7 223 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 224
30667bf3
AM
225 /* Used to count relocations for delayed sizing of relocation
226 sections. */
3bf083ed 227 struct elf_dyn_relocs *dyn_relocs;
30667bf3 228
2e684e75 229 ENUM_BITFIELD (_tls_type) tls_type : 8;
9b52905e 230
74d1c347
AM
231 /* Set if this symbol is used by a plabel reloc. */
232 unsigned int plabel:1;
30667bf3
AM
233};
234
9b52905e
NC
235struct elf32_hppa_link_hash_table
236{
252b5132 237 /* The main hash table. */
a63e02c7 238 struct elf_link_hash_table etab;
252b5132
RH
239
240 /* The stub hash table. */
a63e02c7 241 struct bfd_hash_table bstab;
252b5132 242
30667bf3
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243 /* Linker stub bfd. */
244 bfd *stub_bfd;
245
30667bf3 246 /* Linker call-backs. */
c39a58e6
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247 asection * (*add_stub_section) (const char *, asection *);
248 void (*layout_sections_again) (void);
30667bf3 249
25f72752
AM
250 /* Array to keep track of which stub sections have been created, and
251 information on stub grouping. */
9b52905e
NC
252 struct map_stub
253 {
25f72752
AM
254 /* This is the section to which stubs in the group will be
255 attached. */
256 asection *link_sec;
257 /* The stub section. */
258 asection *stub_sec;
25f72752 259 } *stub_group;
30667bf3 260
b4655ea9
AM
261 /* Assorted information used by elf32_hppa_size_stubs. */
262 unsigned int bfd_count;
7292b3ac 263 unsigned int top_index;
b4655ea9
AM
264 asection **input_list;
265 Elf_Internal_Sym **all_local_syms;
266
c46b7515
AM
267 /* Used during a final link to store the base of the text and data
268 segments so that we can perform SEGREL relocations. */
269 bfd_vma text_segment_base;
270 bfd_vma data_segment_base;
271
47d89dba
AM
272 /* Whether we support multiple sub-spaces for shared libs. */
273 unsigned int multi_subspace:1;
274
067fa4a6 275 /* Flags set when various size branches are detected. Used to
47d89dba
AM
276 select suitable defaults for the stub group size. */
277 unsigned int has_12bit_branch:1;
278 unsigned int has_17bit_branch:1;
067fa4a6 279 unsigned int has_22bit_branch:1;
47d89dba
AM
280
281 /* Set if we need a .plt stub to support lazy dynamic linking. */
282 unsigned int need_plt_stub:1;
ec338859 283
87d72d41
AM
284 /* Small local sym cache. */
285 struct sym_cache sym_cache;
9b52905e
NC
286
287 /* Data for LDM relocations. */
288 union
289 {
290 bfd_signed_vma refcount;
291 bfd_vma offset;
292 } tls_ldm_got;
252b5132
RH
293};
294
30667bf3
AM
295/* Various hash macros and functions. */
296#define hppa_link_hash_table(p) \
4dfe6ac6
NC
297 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
298 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 299
875c0872
DA
300#define hppa_elf_hash_entry(ent) \
301 ((struct elf32_hppa_link_hash_entry *)(ent))
302
303#define hppa_stub_hash_entry(ent) \
304 ((struct elf32_hppa_stub_hash_entry *)(ent))
305
30667bf3
AM
306#define hppa_stub_hash_lookup(table, string, create, copy) \
307 ((struct elf32_hppa_stub_hash_entry *) \
308 bfd_hash_lookup ((table), (string), (create), (copy)))
309
9b52905e
NC
310#define hppa_elf_local_got_tls_type(abfd) \
311 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
312
313#define hh_name(hh) \
314 (hh ? hh->eh.root.root.string : "<undef>")
315
316#define eh_name(eh) \
317 (eh ? eh->root.root.string : "<undef>")
318
252b5132
RH
319/* Assorted hash table functions. */
320
321/* Initialize an entry in the stub hash table. */
322
323static struct bfd_hash_entry *
c39a58e6
AM
324stub_hash_newfunc (struct bfd_hash_entry *entry,
325 struct bfd_hash_table *table,
326 const char *string)
252b5132 327{
252b5132
RH
328 /* Allocate the structure if it has not already been allocated by a
329 subclass. */
ebe50bae 330 if (entry == NULL)
30667bf3 331 {
ebe50bae
AM
332 entry = bfd_hash_allocate (table,
333 sizeof (struct elf32_hppa_stub_hash_entry));
334 if (entry == NULL)
335 return entry;
30667bf3 336 }
252b5132
RH
337
338 /* Call the allocation method of the superclass. */
ebe50bae
AM
339 entry = bfd_hash_newfunc (entry, table, string);
340 if (entry != NULL)
252b5132 341 {
875c0872 342 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 343
252b5132 344 /* Initialize the local fields. */
875c0872
DA
345 hsh = hppa_stub_hash_entry (entry);
346 hsh->stub_sec = NULL;
347 hsh->stub_offset = 0;
348 hsh->target_value = 0;
349 hsh->target_section = NULL;
350 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 351 hsh->hh = NULL;
875c0872 352 hsh->id_sec = NULL;
30667bf3
AM
353 }
354
ebe50bae 355 return entry;
30667bf3
AM
356}
357
30667bf3
AM
358/* Initialize an entry in the link hash table. */
359
360static struct bfd_hash_entry *
c39a58e6
AM
361hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
362 struct bfd_hash_table *table,
363 const char *string)
30667bf3 364{
30667bf3
AM
365 /* Allocate the structure if it has not already been allocated by a
366 subclass. */
ebe50bae 367 if (entry == NULL)
30667bf3 368 {
ebe50bae
AM
369 entry = bfd_hash_allocate (table,
370 sizeof (struct elf32_hppa_link_hash_entry));
371 if (entry == NULL)
372 return entry;
30667bf3
AM
373 }
374
375 /* Call the allocation method of the superclass. */
ebe50bae
AM
376 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
377 if (entry != NULL)
30667bf3 378 {
875c0872 379 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 380
30667bf3 381 /* Initialize the local fields. */
875c0872 382 hh = hppa_elf_hash_entry (entry);
a63e02c7 383 hh->hsh_cache = NULL;
875c0872
DA
384 hh->dyn_relocs = NULL;
385 hh->plabel = 0;
9b52905e 386 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
387 }
388
ebe50bae 389 return entry;
252b5132
RH
390}
391
68faa637
AM
392/* Free the derived linker hash table. */
393
394static void
d495ab0d 395elf32_hppa_link_hash_table_free (bfd *obfd)
68faa637
AM
396{
397 struct elf32_hppa_link_hash_table *htab
d495ab0d 398 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
68faa637
AM
399
400 bfd_hash_table_free (&htab->bstab);
d495ab0d 401 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM
402}
403
252b5132
RH
404/* Create the derived linker hash table. The PA ELF port uses the derived
405 hash table to keep information specific to the PA ELF linker (without
406 using static variables). */
407
408static struct bfd_link_hash_table *
c39a58e6 409elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 410{
875c0872
DA
411 struct elf32_hppa_link_hash_table *htab;
412 bfd_size_type amt = sizeof (*htab);
252b5132 413
7bf52ea2 414 htab = bfd_zmalloc (amt);
875c0872 415 if (htab == NULL)
252b5132 416 return NULL;
edd21aca 417
66eb6687 418 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
419 sizeof (struct elf32_hppa_link_hash_entry),
420 HPPA32_ELF_DATA))
252b5132 421 {
875c0872 422 free (htab);
252b5132
RH
423 return NULL;
424 }
edd21aca
AM
425
426 /* Init the stub hash table too. */
66eb6687
AM
427 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
428 sizeof (struct elf32_hppa_stub_hash_entry)))
d495ab0d
AM
429 {
430 _bfd_elf_link_hash_table_free (abfd);
431 return NULL;
432 }
433 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
edd21aca 434
875c0872
DA
435 htab->text_segment_base = (bfd_vma) -1;
436 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 437 return &htab->etab.root;
252b5132
RH
438}
439
a464198b
AM
440/* Initialize the linker stubs BFD so that we can use it for linker
441 created dynamic sections. */
442
443void
444elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
445{
446 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
447
448 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
449 htab->etab.dynobj = abfd;
450}
451
30667bf3
AM
452/* Build a name for an entry in the stub hash table. */
453
edd21aca 454static char *
c39a58e6
AM
455hppa_stub_name (const asection *input_section,
456 const asection *sym_sec,
875c0872
DA
457 const struct elf32_hppa_link_hash_entry *hh,
458 const Elf_Internal_Rela *rela)
edd21aca
AM
459{
460 char *stub_name;
dc810e39 461 bfd_size_type len;
edd21aca 462
875c0872 463 if (hh)
30667bf3 464 {
9b52905e 465 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
466 stub_name = bfd_malloc (len);
467 if (stub_name != NULL)
9b52905e
NC
468 sprintf (stub_name, "%08x_%s+%x",
469 input_section->id & 0xffffffff,
470 hh_name (hh),
471 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
472 }
473 else
edd21aca 474 {
30667bf3
AM
475 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
476 stub_name = bfd_malloc (len);
477 if (stub_name != NULL)
9b52905e
NC
478 sprintf (stub_name, "%08x_%x:%x+%x",
479 input_section->id & 0xffffffff,
480 sym_sec->id & 0xffffffff,
481 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
482 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
483 }
484 return stub_name;
485}
252b5132 486
30667bf3
AM
487/* Look up an entry in the stub hash. Stub entries are cached because
488 creating the stub name takes a bit of time. */
489
490static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
491hppa_get_stub_entry (const asection *input_section,
492 const asection *sym_sec,
875c0872
DA
493 struct elf32_hppa_link_hash_entry *hh,
494 const Elf_Internal_Rela *rela,
c39a58e6 495 struct elf32_hppa_link_hash_table *htab)
252b5132 496{
a63e02c7 497 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
498 const asection *id_sec;
499
500 /* If this input section is part of a group of sections sharing one
501 stub section, then use the id of the first section in the group.
502 Stub names need to include a section id, as there may well be
503 more than one stub used to reach say, printf, and we need to
504 distinguish between them. */
83c81bfe 505 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 506
a63e02c7
DA
507 if (hh != NULL && hh->hsh_cache != NULL
508 && hh->hsh_cache->hh == hh
509 && hh->hsh_cache->id_sec == id_sec)
edd21aca 510 {
a63e02c7 511 hsh_entry = hh->hsh_cache;
30667bf3
AM
512 }
513 else
514 {
30667bf3 515 char *stub_name;
edd21aca 516
875c0872 517 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
518 if (stub_name == NULL)
519 return NULL;
edd21aca 520
a63e02c7 521 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 522 stub_name, FALSE, FALSE);
875c0872 523 if (hh != NULL)
a63e02c7 524 hh->hsh_cache = hsh_entry;
30667bf3
AM
525
526 free (stub_name);
edd21aca 527 }
30667bf3 528
a63e02c7 529 return hsh_entry;
30667bf3
AM
530}
531
30667bf3
AM
532/* Add a new stub entry to the stub hash. Not all fields of the new
533 stub entry are initialised. */
534
535static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
536hppa_add_stub (const char *stub_name,
537 asection *section,
538 struct elf32_hppa_link_hash_table *htab)
30667bf3 539{
25f72752 540 asection *link_sec;
30667bf3 541 asection *stub_sec;
875c0872 542 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 543
83c81bfe
AM
544 link_sec = htab->stub_group[section->id].link_sec;
545 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 546 if (stub_sec == NULL)
edd21aca 547 {
83c81bfe 548 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
549 if (stub_sec == NULL)
550 {
d4c88bbb 551 size_t namelen;
dc810e39 552 bfd_size_type len;
30667bf3
AM
553 char *s_name;
554
d4c88bbb
AM
555 namelen = strlen (link_sec->name);
556 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 557 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
558 if (s_name == NULL)
559 return NULL;
560
d4c88bbb
AM
561 memcpy (s_name, link_sec->name, namelen);
562 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 563 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
564 if (stub_sec == NULL)
565 return NULL;
83c81bfe 566 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 567 }
83c81bfe 568 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 569 }
252b5132 570
30667bf3 571 /* Enter this entry into the linker stub hash table. */
a63e02c7 572 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 573 TRUE, FALSE);
875c0872 574 if (hsh == NULL)
30667bf3 575 {
695344c0 576 /* xgettext:c-format */
871b3ab2 577 _bfd_error_handler (_("%pB: cannot create stub entry %s"),
4eca0228 578 section->owner, stub_name);
30667bf3 579 return NULL;
edd21aca
AM
580 }
581
875c0872
DA
582 hsh->stub_sec = stub_sec;
583 hsh->stub_offset = 0;
584 hsh->id_sec = link_sec;
585 return hsh;
edd21aca
AM
586}
587
30667bf3
AM
588/* Determine the type of stub needed, if any, for a call. */
589
590static enum elf32_hppa_stub_type
c39a58e6 591hppa_type_of_stub (asection *input_sec,
875c0872
DA
592 const Elf_Internal_Rela *rela,
593 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
594 bfd_vma destination,
595 struct bfd_link_info *info)
edd21aca 596{
edd21aca 597 bfd_vma location;
30667bf3
AM
598 bfd_vma branch_offset;
599 bfd_vma max_branch_offset;
600 unsigned int r_type;
601
875c0872 602 if (hh != NULL
a63e02c7
DA
603 && hh->eh.plt.offset != (bfd_vma) -1
604 && hh->eh.dynindx != -1
875c0872 605 && !hh->plabel
0e1862bb 606 && (bfd_link_pic (info)
a63e02c7
DA
607 || !hh->eh.def_regular
608 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 609 {
067fa4a6
AM
610 /* We need an import stub. Decide between hppa_stub_import
611 and hppa_stub_import_shared later. */
30667bf3
AM
612 return hppa_stub_import;
613 }
edd21aca 614
f6a8b8c7
AM
615 if (destination == (bfd_vma) -1)
616 return hppa_stub_none;
617
30667bf3
AM
618 /* Determine where the call point is. */
619 location = (input_sec->output_offset
620 + input_sec->output_section->vma
875c0872 621 + rela->r_offset);
edd21aca 622
30667bf3 623 branch_offset = destination - location - 8;
875c0872 624 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 625
30667bf3
AM
626 /* Determine if a long branch stub is needed. parisc branch offsets
627 are relative to the second instruction past the branch, ie. +8
628 bytes on from the branch instruction location. The offset is
629 signed and counts in units of 4 bytes. */
630 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
631 max_branch_offset = (1 << (17 - 1)) << 2;
632
30667bf3 633 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
634 max_branch_offset = (1 << (12 - 1)) << 2;
635
25f72752 636 else /* R_PARISC_PCREL22F. */
9b52905e 637 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 638
30667bf3 639 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
640 return hppa_stub_long_branch;
641
30667bf3
AM
642 return hppa_stub_none;
643}
edd21aca 644
30667bf3
AM
645/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
646 IN_ARG contains the link info pointer. */
edd21aca 647
30667bf3
AM
648#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
649#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 650
30667bf3 651#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 652#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 653#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 654
3ee1d854
AM
655#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
656#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 657#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 658#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 659
3ee1d854
AM
660#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
661#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 662
30667bf3
AM
663#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
664#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
665#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
666#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 667
067fa4a6 668#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
669#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
670#define NOP 0x08000240 /* nop */
671#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
672#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
673#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 674
30667bf3
AM
675#ifndef R19_STUBS
676#define R19_STUBS 1
677#endif
edd21aca 678
30667bf3
AM
679#if R19_STUBS
680#define LDW_R1_DLT LDW_R1_R19
681#else
682#define LDW_R1_DLT LDW_R1_DP
683#endif
edd21aca 684
b34976b6 685static bfd_boolean
875c0872 686hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 687{
875c0872 688 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 689 struct bfd_link_info *info;
83c81bfe 690 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
691 asection *stub_sec;
692 bfd *stub_bfd;
693 bfd_byte *loc;
694 bfd_vma sym_value;
74d1c347 695 bfd_vma insn;
8dea1268 696 bfd_vma off;
74d1c347 697 int val;
30667bf3 698 int size;
edd21aca 699
30667bf3 700 /* Massage our args to the form they really have. */
875c0872
DA
701 hsh = hppa_stub_hash_entry (bh);
702 info = (struct bfd_link_info *)in_arg;
30667bf3 703
83c81bfe 704 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
705 if (htab == NULL)
706 return FALSE;
707
875c0872 708 stub_sec = hsh->stub_sec;
edd21aca 709
30667bf3 710 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
711 hsh->stub_offset = stub_sec->size;
712 loc = stub_sec->contents + hsh->stub_offset;
252b5132 713
30667bf3
AM
714 stub_bfd = stub_sec->owner;
715
875c0872 716 switch (hsh->stub_type)
30667bf3
AM
717 {
718 case hppa_stub_long_branch:
719 /* Create the long branch. A long branch is formed with "ldil"
720 loading the upper bits of the target address into a register,
721 then branching with "be" which adds in the lower bits.
722 The "be" has its delay slot nullified. */
875c0872
DA
723 sym_value = (hsh->target_value
724 + hsh->target_section->output_offset
725 + hsh->target_section->output_section->vma);
30667bf3 726
c39a58e6 727 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 728 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
729 bfd_put_32 (stub_bfd, insn, loc);
730
c39a58e6 731 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 732 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
733 bfd_put_32 (stub_bfd, insn, loc + 4);
734
30667bf3 735 size = 8;
edd21aca
AM
736 break;
737
30667bf3
AM
738 case hppa_stub_long_branch_shared:
739 /* Branches are relative. This is where we are going to. */
875c0872
DA
740 sym_value = (hsh->target_value
741 + hsh->target_section->output_offset
742 + hsh->target_section->output_section->vma);
30667bf3
AM
743
744 /* And this is where we are coming from, more or less. */
875c0872 745 sym_value -= (hsh->stub_offset
30667bf3
AM
746 + stub_sec->output_offset
747 + stub_sec->output_section->vma);
748
74d1c347 749 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 750 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 751 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
752 bfd_put_32 (stub_bfd, insn, loc + 4);
753
47d89dba 754 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 755 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
756 bfd_put_32 (stub_bfd, insn, loc + 8);
757 size = 12;
758 break;
edd21aca 759
30667bf3
AM
760 case hppa_stub_import:
761 case hppa_stub_import_shared:
a63e02c7 762 off = hsh->hh->eh.plt.offset;
8dea1268 763 if (off >= (bfd_vma) -2)
49e9d0d3 764 abort ();
8dea1268
AM
765
766 off &= ~ (bfd_vma) 1;
767 sym_value = (off
ce558b89
AM
768 + htab->etab.splt->output_offset
769 + htab->etab.splt->output_section->vma
770 - elf_gp (htab->etab.splt->output_section->owner));
30667bf3
AM
771
772 insn = ADDIL_DP;
773#if R19_STUBS
875c0872 774 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
775 insn = ADDIL_R19;
776#endif
c39a58e6 777 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 778 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 779 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 780
47d89dba
AM
781 /* It is critical to use lrsel/rrsel here because we are using
782 two different offsets (+0 and +4) from sym_value. If we use
783 lsel/rsel then with unfortunate sym_values we will round
784 sym_value+4 up to the next 2k block leading to a mis-match
785 between the lsel and rsel value. */
c39a58e6 786 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 787 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 788 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 789
83c81bfe 790 if (htab->multi_subspace)
30667bf3 791 {
47d89dba 792 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 793 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 794 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 795
74d1c347
AM
796 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
797 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
798 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
799 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 800
30667bf3
AM
801 size = 28;
802 }
803 else
804 {
74d1c347 805 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 806 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 807 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 808 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 809
30667bf3
AM
810 size = 16;
811 }
252b5132 812
30667bf3 813 break;
252b5132 814
30667bf3
AM
815 case hppa_stub_export:
816 /* Branches are relative. This is where we are going to. */
875c0872
DA
817 sym_value = (hsh->target_value
818 + hsh->target_section->output_offset
819 + hsh->target_section->output_section->vma);
252b5132 820
30667bf3 821 /* And this is where we are coming from. */
875c0872 822 sym_value -= (hsh->stub_offset
30667bf3
AM
823 + stub_sec->output_offset
824 + stub_sec->output_section->vma);
edd21aca 825
067fa4a6
AM
826 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
827 && (!htab->has_22bit_branch
828 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 829 {
4eca0228 830 _bfd_error_handler
695344c0 831 /* xgettext:c-format */
2dcf00ce
AM
832 (_("%pB(%pA+%#" PRIx64 "): "
833 "cannot reach %s, recompile with -ffunction-sections"),
875c0872 834 hsh->target_section->owner,
d003868e 835 stub_sec,
2dcf00ce 836 (uint64_t) hsh->stub_offset,
a63e02c7 837 hsh->bh_root.string);
30667bf3 838 bfd_set_error (bfd_error_bad_value);
b34976b6 839 return FALSE;
252b5132 840 }
30667bf3 841
74d1c347 842 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
843 if (!htab->has_22bit_branch)
844 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
845 else
846 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
847 bfd_put_32 (stub_bfd, insn, loc);
848
07d6d2b8 849 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
74d1c347
AM
850 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
851 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
852 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
853 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
854
855 /* Point the function symbol at the stub. */
a63e02c7
DA
856 hsh->hh->eh.root.u.def.section = stub_sec;
857 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
858
859 size = 24;
860 break;
861
862 default:
863 BFD_FAIL ();
b34976b6 864 return FALSE;
252b5132
RH
865 }
866
eea6121a 867 stub_sec->size += size;
b34976b6 868 return TRUE;
252b5132
RH
869}
870
30667bf3
AM
871#undef LDIL_R1
872#undef BE_SR4_R1
873#undef BL_R1
874#undef ADDIL_R1
875#undef DEPI_R1
30667bf3
AM
876#undef LDW_R1_R21
877#undef LDW_R1_DLT
878#undef LDW_R1_R19
879#undef ADDIL_R19
880#undef LDW_R1_DP
881#undef LDSID_R21_R1
882#undef MTSP_R1
883#undef BE_SR0_R21
884#undef STW_RP
885#undef BV_R0_R21
886#undef BL_RP
887#undef NOP
888#undef LDW_RP
889#undef LDSID_RP_R1
890#undef BE_SR0_RP
252b5132 891
30667bf3
AM
892/* As above, but don't actually build the stub. Just bump offset so
893 we know stub section sizes. */
894
b34976b6 895static bfd_boolean
875c0872 896hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 897{
875c0872 898 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 899 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
900 int size;
901
902 /* Massage our args to the form they really have. */
875c0872 903 hsh = hppa_stub_hash_entry (bh);
c39a58e6 904 htab = in_arg;
30667bf3 905
875c0872 906 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 907 size = 8;
875c0872 908 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 909 size = 12;
875c0872 910 else if (hsh->stub_type == hppa_stub_export)
30667bf3 911 size = 24;
74d1c347 912 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 913 {
83c81bfe 914 if (htab->multi_subspace)
30667bf3
AM
915 size = 28;
916 else
917 size = 16;
918 }
252b5132 919
875c0872 920 hsh->stub_sec->size += size;
b34976b6 921 return TRUE;
30667bf3 922}
252b5132 923
30667bf3
AM
924/* Return nonzero if ABFD represents an HPPA ELF32 file.
925 Additionally we set the default architecture and machine. */
926
b34976b6 927static bfd_boolean
c39a58e6 928elf32_hppa_object_p (bfd *abfd)
30667bf3 929{
24a5e751
L
930 Elf_Internal_Ehdr * i_ehdrp;
931 unsigned int flags;
252b5132 932
24a5e751
L
933 i_ehdrp = elf_elfheader (abfd);
934 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
935 {
9c55345c 936 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 937 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 938 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 939 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 940 return FALSE;
24a5e751 941 }
225247f0
JT
942 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
943 {
944 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
945 but the kernel produces corefiles with OSABI=SysV. */
946 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
947 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
948 return FALSE;
949 }
24a5e751
L
950 else
951 {
952 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 953 return FALSE;
24a5e751
L
954 }
955
956 flags = i_ehdrp->e_flags;
30667bf3
AM
957 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
958 {
959 case EFA_PARISC_1_0:
960 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
961 case EFA_PARISC_1_1:
962 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
963 case EFA_PARISC_2_0:
964 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
965 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
966 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
967 }
b34976b6 968 return TRUE;
252b5132
RH
969}
970
30667bf3
AM
971/* Create the .plt and .got sections, and set up our hash table
972 short-cuts to various dynamic sections. */
973
b34976b6 974static bfd_boolean
c39a58e6 975elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 976{
83c81bfe 977 struct elf32_hppa_link_hash_table *htab;
875c0872 978 struct elf_link_hash_entry *eh;
edd21aca 979
30667bf3 980 /* Don't try to create the .plt and .got twice. */
83c81bfe 981 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
982 if (htab == NULL)
983 return FALSE;
ce558b89 984 if (htab->etab.splt != NULL)
b34976b6 985 return TRUE;
edd21aca 986
30667bf3
AM
987 /* Call the generic code to do most of the work. */
988 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 989 return FALSE;
252b5132 990
b18e2ae5
AM
991 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
992 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
993 eh = elf_hash_table (info)->hgot;
994 eh->forced_local = 0;
995 eh->other = STV_DEFAULT;
996 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
997}
998
ebe50bae
AM
999/* Copy the extra info we tack onto an elf_link_hash_entry. */
1000
51b64d56 1001static void
fcfa13d2 1002elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1003 struct elf_link_hash_entry *eh_dir,
1004 struct elf_link_hash_entry *eh_ind)
ebe50bae 1005{
875c0872 1006 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1007
875c0872
DA
1008 hh_dir = hppa_elf_hash_entry (eh_dir);
1009 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1010
287c7eaf
AM
1011 if (hh_ind->dyn_relocs != NULL
1012 && eh_ind->root.type == bfd_link_hash_indirect)
ebe50bae 1013 {
875c0872 1014 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1015 {
3bf083ed
AM
1016 struct elf_dyn_relocs **hdh_pp;
1017 struct elf_dyn_relocs *hdh_p;
bbd7ec4a 1018
fcfa13d2 1019 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1020 list. Merge any entries against the same section. */
875c0872 1021 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1022 {
3bf083ed 1023 struct elf_dyn_relocs *hdh_q;
bbd7ec4a 1024
fcfa13d2
AM
1025 for (hdh_q = hh_dir->dyn_relocs;
1026 hdh_q != NULL;
3bf083ed 1027 hdh_q = hdh_q->next)
875c0872 1028 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1029 {
1030#if RELATIVE_DYNRELOCS
3bf083ed 1031 hdh_q->pc_count += hdh_p->pc_count;
bbd7ec4a 1032#endif
875c0872 1033 hdh_q->count += hdh_p->count;
3bf083ed 1034 *hdh_pp = hdh_p->next;
bbd7ec4a
AM
1035 break;
1036 }
875c0872 1037 if (hdh_q == NULL)
3bf083ed 1038 hdh_pp = &hdh_p->next;
bbd7ec4a 1039 }
875c0872 1040 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1041 }
1042
875c0872
DA
1043 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1044 hh_ind->dyn_relocs = NULL;
ebe50bae 1045 }
ebe50bae 1046
4a7e5234 1047 if (eh_ind->root.type == bfd_link_hash_indirect)
9b52905e 1048 {
4a7e5234
AM
1049 hh_dir->plabel |= hh_ind->plabel;
1050 hh_dir->tls_type |= hh_ind->tls_type;
1051 hh_ind->tls_type = GOT_UNKNOWN;
9b52905e 1052 }
4a7e5234
AM
1053
1054 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
9b52905e
NC
1055}
1056
1057static int
1058elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1059 int r_type, int is_local ATTRIBUTE_UNUSED)
1060{
1061 /* For now we don't support linker optimizations. */
1062 return r_type;
ebe50bae
AM
1063}
1064
d45b7d74
DA
1065/* Return a pointer to the local GOT, PLT and TLS reference counts
1066 for ABFD. Returns NULL if the storage allocation fails. */
1067
1068static bfd_signed_vma *
1069hppa32_elf_local_refcounts (bfd *abfd)
1070{
1071 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1072 bfd_signed_vma *local_refcounts;
68ffbac6 1073
d45b7d74
DA
1074 local_refcounts = elf_local_got_refcounts (abfd);
1075 if (local_refcounts == NULL)
1076 {
1077 bfd_size_type size;
1078
1079 /* Allocate space for local GOT and PLT reference
1080 counts. Done this way to save polluting elf_obj_tdata
1081 with another target specific pointer. */
1082 size = symtab_hdr->sh_info;
1083 size *= 2 * sizeof (bfd_signed_vma);
1084 /* Add in space to store the local GOT TLS types. */
1085 size += symtab_hdr->sh_info;
1086 local_refcounts = bfd_zalloc (abfd, size);
1087 if (local_refcounts == NULL)
1088 return NULL;
1089 elf_local_got_refcounts (abfd) = local_refcounts;
1090 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1091 symtab_hdr->sh_info);
1092 }
1093 return local_refcounts;
1094}
1095
1096
30667bf3 1097/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1098 calculate needed space in the global offset table, procedure linkage
1099 table, and dynamic reloc sections. At this point we haven't
1100 necessarily read all the input files. */
252b5132 1101
b34976b6 1102static bfd_boolean
c39a58e6
AM
1103elf32_hppa_check_relocs (bfd *abfd,
1104 struct bfd_link_info *info,
1105 asection *sec,
1106 const Elf_Internal_Rela *relocs)
252b5132 1107{
30667bf3 1108 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1109 struct elf_link_hash_entry **eh_syms;
1110 const Elf_Internal_Rela *rela;
1111 const Elf_Internal_Rela *rela_end;
83c81bfe 1112 struct elf32_hppa_link_hash_table *htab;
30667bf3 1113 asection *sreloc;
30667bf3 1114
0e1862bb 1115 if (bfd_link_relocatable (info))
b34976b6 1116 return TRUE;
30667bf3 1117
83c81bfe 1118 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1119 if (htab == NULL)
1120 return FALSE;
30667bf3 1121 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1122 eh_syms = elf_sym_hashes (abfd);
30667bf3 1123 sreloc = NULL;
30667bf3 1124
875c0872
DA
1125 rela_end = relocs + sec->reloc_count;
1126 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1127 {
1128 enum {
1129 NEED_GOT = 1,
1130 NEED_PLT = 2,
1131 NEED_DYNREL = 4,
98ceb8ce 1132 PLT_PLABEL = 8
30667bf3 1133 };
edd21aca 1134
30667bf3 1135 unsigned int r_symndx, r_type;
875c0872
DA
1136 struct elf32_hppa_link_hash_entry *hh;
1137 int need_entry = 0;
252b5132 1138
875c0872 1139 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1140
30667bf3 1141 if (r_symndx < symtab_hdr->sh_info)
875c0872 1142 hh = NULL;
30667bf3 1143 else
f7c5057a 1144 {
875c0872 1145 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1146 while (hh->eh.root.type == bfd_link_hash_indirect
1147 || hh->eh.root.type == bfd_link_hash_warning)
1148 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
f7c5057a 1149 }
252b5132 1150
875c0872 1151 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1152 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1153
30667bf3
AM
1154 switch (r_type)
1155 {
1156 case R_PARISC_DLTIND14F:
1157 case R_PARISC_DLTIND14R:
1158 case R_PARISC_DLTIND21L:
1159 /* This symbol requires a global offset table entry. */
1160 need_entry = NEED_GOT;
30667bf3
AM
1161 break;
1162
1163 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1164 case R_PARISC_PLABEL21L:
1165 case R_PARISC_PLABEL32:
74d1c347 1166 /* If the addend is non-zero, we break badly. */
875c0872 1167 if (rela->r_addend != 0)
49e9d0d3 1168 abort ();
74d1c347
AM
1169
1170 /* If we are creating a shared library, then we need to
1171 create a PLT entry for all PLABELs, because PLABELs with
1172 local symbols may be passed via a pointer to another
1173 object. Additionally, output a dynamic relocation
4dc86686 1174 pointing to the PLT entry.
875c0872 1175
4dc86686
AM
1176 For executables, the original 32-bit ABI allowed two
1177 different styles of PLABELs (function pointers): For
1178 global functions, the PLABEL word points into the .plt
1179 two bytes past a (function address, gp) pair, and for
1180 local functions the PLABEL points directly at the
1181 function. The magic +2 for the first type allows us to
1182 differentiate between the two. As you can imagine, this
1183 is a real pain when it comes to generating code to call
1184 functions indirectly or to compare function pointers.
1185 We avoid the mess by always pointing a PLABEL into the
1186 .plt, even for local functions. */
127e8e9f
AM
1187 need_entry = PLT_PLABEL | NEED_PLT;
1188 if (bfd_link_pic (info))
1189 need_entry |= NEED_DYNREL;
30667bf3
AM
1190 break;
1191
1192 case R_PARISC_PCREL12F:
83c81bfe 1193 htab->has_12bit_branch = 1;
067fa4a6
AM
1194 goto branch_common;
1195
30667bf3
AM
1196 case R_PARISC_PCREL17C:
1197 case R_PARISC_PCREL17F:
83c81bfe 1198 htab->has_17bit_branch = 1;
067fa4a6
AM
1199 goto branch_common;
1200
30667bf3 1201 case R_PARISC_PCREL22F:
067fa4a6
AM
1202 htab->has_22bit_branch = 1;
1203 branch_common:
47d89dba
AM
1204 /* Function calls might need to go through the .plt, and
1205 might require long branch stubs. */
875c0872 1206 if (hh == NULL)
30667bf3
AM
1207 {
1208 /* We know local syms won't need a .plt entry, and if
1209 they need a long branch stub we can't guarantee that
1210 we can reach the stub. So just flag an error later
1211 if we're doing a shared link and find we need a long
1212 branch stub. */
1213 continue;
1214 }
1215 else
1216 {
1217 /* Global symbols will need a .plt entry if they remain
1218 global, and in most cases won't need a long branch
1219 stub. Unfortunately, we have to cater for the case
1220 where a symbol is forced local by versioning, or due
1221 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1222 need_entry = NEED_PLT;
a63e02c7 1223 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1224 need_entry = 0;
30667bf3
AM
1225 }
1226 break;
1227
36751eee 1228 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1229 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1230 case R_PARISC_PCREL14F: /* PC relative load/store. */
1231 case R_PARISC_PCREL14R:
1232 case R_PARISC_PCREL17R: /* External branches. */
1233 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1234 case R_PARISC_PCREL32:
30667bf3
AM
1235 /* We don't need to propagate the relocation if linking a
1236 shared object since these are section relative. */
1237 continue;
1238
1239 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1240 case R_PARISC_DPREL14R:
1241 case R_PARISC_DPREL21L:
0e1862bb 1242 if (bfd_link_pic (info))
30667bf3 1243 {
4eca0228 1244 _bfd_error_handler
695344c0 1245 /* xgettext:c-format */
871b3ab2 1246 (_("%pB: relocation %s can not be used when making a shared object; recompile with -fPIC"),
d003868e 1247 abfd,
30667bf3
AM
1248 elf_hppa_howto_table[r_type].name);
1249 bfd_set_error (bfd_error_bad_value);
b34976b6 1250 return FALSE;
30667bf3
AM
1251 }
1252 /* Fall through. */
1253
1254 case R_PARISC_DIR17F: /* Used for external branches. */
1255 case R_PARISC_DIR17R:
47d89dba
AM
1256 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1257 case R_PARISC_DIR14R:
30667bf3 1258 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1259 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1260 /* We may want to output a dynamic relocation later. */
1261 need_entry = NEED_DYNREL;
1262 break;
1263
1264 /* This relocation describes the C++ object vtable hierarchy.
1265 Reconstruct it for later use during GC. */
1266 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1267 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1268 return FALSE;
30667bf3
AM
1269 continue;
1270
1271 /* This relocation describes which C++ vtable entries are actually
1272 used. Record for later use during GC. */
1273 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1274 BFD_ASSERT (hh != NULL);
1275 if (hh != NULL
1276 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1277 return FALSE;
30667bf3
AM
1278 continue;
1279
9b52905e
NC
1280 case R_PARISC_TLS_GD21L:
1281 case R_PARISC_TLS_GD14R:
1282 case R_PARISC_TLS_LDM21L:
1283 case R_PARISC_TLS_LDM14R:
1284 need_entry = NEED_GOT;
1285 break;
1286
1287 case R_PARISC_TLS_IE21L:
1288 case R_PARISC_TLS_IE14R:
2e684e75 1289 if (bfd_link_dll (info))
07d6d2b8 1290 info->flags |= DF_STATIC_TLS;
9b52905e
NC
1291 need_entry = NEED_GOT;
1292 break;
1293
30667bf3
AM
1294 default:
1295 continue;
1296 }
1297
1298 /* Now carry out our orders. */
1299 if (need_entry & NEED_GOT)
1300 {
2e684e75
AM
1301 int tls_type = GOT_NORMAL;
1302
9b52905e
NC
1303 switch (r_type)
1304 {
1305 default:
9b52905e
NC
1306 break;
1307 case R_PARISC_TLS_GD21L:
1308 case R_PARISC_TLS_GD14R:
2e684e75 1309 tls_type = GOT_TLS_GD;
9b52905e
NC
1310 break;
1311 case R_PARISC_TLS_LDM21L:
1312 case R_PARISC_TLS_LDM14R:
2e684e75 1313 tls_type = GOT_TLS_LDM;
9b52905e
NC
1314 break;
1315 case R_PARISC_TLS_IE21L:
1316 case R_PARISC_TLS_IE14R:
2e684e75 1317 tls_type = GOT_TLS_IE;
9b52905e
NC
1318 break;
1319 }
1320
30667bf3 1321 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1322 relocation for this entry. */
ce558b89 1323 if (htab->etab.sgot == NULL)
30667bf3 1324 {
a63e02c7 1325 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1326 return FALSE;
30667bf3
AM
1327 }
1328
2e684e75 1329 if (hh != NULL)
30667bf3 1330 {
2e684e75
AM
1331 if (tls_type == GOT_TLS_LDM)
1332 htab->tls_ldm_got.refcount += 1;
9b52905e 1333 else
2e684e75
AM
1334 hh->eh.got.refcount += 1;
1335 hh->tls_type |= tls_type;
1336 }
1337 else
1338 {
1339 bfd_signed_vma *local_got_refcounts;
9b52905e 1340
2e684e75
AM
1341 /* This is a global offset table entry for a local symbol. */
1342 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1343 if (local_got_refcounts == NULL)
1344 return FALSE;
1345 if (tls_type == GOT_TLS_LDM)
1346 htab->tls_ldm_got.refcount += 1;
1347 else
1348 local_got_refcounts[r_symndx] += 1;
9b52905e 1349
2e684e75 1350 hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type;
30667bf3
AM
1351 }
1352 }
1353
1354 if (need_entry & NEED_PLT)
1355 {
1356 /* If we are creating a shared library, and this is a reloc
1357 against a weak symbol or a global symbol in a dynamic
1358 object, then we will be creating an import stub and a
1359 .plt entry for the symbol. Similarly, on a normal link
1360 to symbols defined in a dynamic object we'll need the
1361 import stub and a .plt entry. We don't know yet whether
1362 the symbol is defined or not, so make an entry anyway and
1363 clean up later in adjust_dynamic_symbol. */
1364 if ((sec->flags & SEC_ALLOC) != 0)
1365 {
875c0872 1366 if (hh != NULL)
30667bf3 1367 {
a63e02c7
DA
1368 hh->eh.needs_plt = 1;
1369 hh->eh.plt.refcount += 1;
74d1c347 1370
36605136
AM
1371 /* If this .plt entry is for a plabel, mark it so
1372 that adjust_dynamic_symbol will keep the entry
1373 even if it appears to be local. */
74d1c347 1374 if (need_entry & PLT_PLABEL)
875c0872 1375 hh->plabel = 1;
74d1c347
AM
1376 }
1377 else if (need_entry & PLT_PLABEL)
1378 {
3ac8354b 1379 bfd_signed_vma *local_got_refcounts;
68fb2e56 1380 bfd_signed_vma *local_plt_refcounts;
74d1c347 1381
d45b7d74 1382 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1383 if (local_got_refcounts == NULL)
d45b7d74 1384 return FALSE;
68fb2e56
AM
1385 local_plt_refcounts = (local_got_refcounts
1386 + symtab_hdr->sh_info);
ebe50bae 1387 local_plt_refcounts[r_symndx] += 1;
30667bf3 1388 }
30667bf3
AM
1389 }
1390 }
1391
d336fa6d
AM
1392 if ((need_entry & NEED_DYNREL) != 0
1393 && (sec->flags & SEC_ALLOC) != 0)
30667bf3
AM
1394 {
1395 /* Flag this symbol as having a non-got, non-plt reference
1396 so that we generate copy relocs if it turns out to be
1397 dynamic. */
4a7e5234 1398 if (hh != NULL)
a63e02c7 1399 hh->eh.non_got_ref = 1;
30667bf3
AM
1400
1401 /* If we are creating a shared library then we need to copy
1402 the reloc into the shared library. However, if we are
1403 linking with -Bsymbolic, we need only copy absolute
1404 relocs or relocs against symbols that are not defined in
1405 an object we are including in the link. PC- or DP- or
1406 DLT-relative relocs against any local sym or global sym
1407 with DEF_REGULAR set, can be discarded. At this point we
1408 have not seen all the input files, so it is possible that
1409 DEF_REGULAR is not set now but will be set later (it is
1410 never cleared). We account for that possibility below by
98ceb8ce 1411 storing information in the dyn_relocs field of the
30667bf3
AM
1412 hash table entry.
1413
1414 A similar situation to the -Bsymbolic case occurs when
1415 creating shared libraries and symbol visibility changes
1416 render the symbol local.
1417
1418 As it turns out, all the relocs we will be creating here
1419 are absolute, so we cannot remove them on -Bsymbolic
1420 links or visibility changes anyway. A STUB_REL reloc
1421 is absolute too, as in that case it is the reloc in the
1422 stub we will be creating, rather than copying the PCREL
56882138
AM
1423 reloc in the branch.
1424
1425 If on the other hand, we are creating an executable, we
1426 may need to keep relocations for symbols satisfied by a
1427 dynamic library if we manage to avoid copy relocs for the
1428 symbol. */
0e1862bb 1429 if ((bfd_link_pic (info)
446f2863 1430 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1431 || (hh != NULL
a496fbc8 1432 && (!SYMBOLIC_BIND (info, &hh->eh)
a63e02c7
DA
1433 || hh->eh.root.type == bfd_link_hash_defweak
1434 || !hh->eh.def_regular))))
4fc8051d 1435 || (ELIMINATE_COPY_RELOCS
0e1862bb 1436 && !bfd_link_pic (info)
875c0872 1437 && hh != NULL
a63e02c7
DA
1438 && (hh->eh.root.type == bfd_link_hash_defweak
1439 || !hh->eh.def_regular)))
30667bf3 1440 {
3bf083ed
AM
1441 struct elf_dyn_relocs *hdh_p;
1442 struct elf_dyn_relocs **hdh_head;
ec338859 1443
30667bf3
AM
1444 /* Create a reloc section in dynobj and make room for
1445 this reloc. */
98ceb8ce 1446 if (sreloc == NULL)
30667bf3 1447 {
83bac4b0
NC
1448 sreloc = _bfd_elf_make_dynamic_reloc_section
1449 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1450
98ceb8ce 1451 if (sreloc == NULL)
30667bf3 1452 {
83bac4b0
NC
1453 bfd_set_error (bfd_error_bad_value);
1454 return FALSE;
30667bf3 1455 }
30667bf3
AM
1456 }
1457
98ceb8ce
AM
1458 /* If this is a global symbol, we count the number of
1459 relocations we need for this symbol. */
875c0872 1460 if (hh != NULL)
30667bf3 1461 {
875c0872 1462 hdh_head = &hh->dyn_relocs;
ec338859
AM
1463 }
1464 else
1465 {
1466 /* Track dynamic relocs needed for local syms too.
1467 We really need local syms available to do this
1468 easily. Oh well. */
875c0872 1469 asection *sr;
6edfbbad 1470 void *vpp;
87d72d41 1471 Elf_Internal_Sym *isym;
6edfbbad 1472
87d72d41
AM
1473 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1474 abfd, r_symndx);
1475 if (isym == NULL)
b34976b6 1476 return FALSE;
30667bf3 1477
87d72d41
AM
1478 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1479 if (sr == NULL)
1480 sr = sec;
1481
6edfbbad 1482 vpp = &elf_section_data (sr)->local_dynrel;
3bf083ed 1483 hdh_head = (struct elf_dyn_relocs **) vpp;
ec338859
AM
1484 }
1485
875c0872
DA
1486 hdh_p = *hdh_head;
1487 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1488 {
a63e02c7 1489 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1490 if (hdh_p == NULL)
b34976b6 1491 return FALSE;
3bf083ed 1492 hdh_p->next = *hdh_head;
875c0872
DA
1493 *hdh_head = hdh_p;
1494 hdh_p->sec = sec;
1495 hdh_p->count = 0;
98ceb8ce 1496#if RELATIVE_DYNRELOCS
3bf083ed 1497 hdh_p->pc_count = 0;
98ceb8ce 1498#endif
ec338859 1499 }
98ceb8ce 1500
875c0872 1501 hdh_p->count += 1;
98ceb8ce 1502#if RELATIVE_DYNRELOCS
ec338859 1503 if (!IS_ABSOLUTE_RELOC (rtype))
3bf083ed 1504 hdh_p->pc_count += 1;
98ceb8ce 1505#endif
30667bf3
AM
1506 }
1507 }
1508 }
edd21aca 1509
b34976b6 1510 return TRUE;
edd21aca
AM
1511}
1512
30667bf3
AM
1513/* Return the section that should be marked against garbage collection
1514 for a given relocation. */
1515
1516static asection *
c39a58e6 1517elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1518 struct bfd_link_info *info,
875c0872
DA
1519 Elf_Internal_Rela *rela,
1520 struct elf_link_hash_entry *hh,
c39a58e6 1521 Elf_Internal_Sym *sym)
30667bf3 1522{
875c0872 1523 if (hh != NULL)
07adf181
AM
1524 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1525 {
1526 case R_PARISC_GNU_VTINHERIT:
1527 case R_PARISC_GNU_VTENTRY:
1528 return NULL;
1529 }
30667bf3 1530
07adf181 1531 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1532}
1533
edfc032f
AM
1534/* Support for core dump NOTE sections. */
1535
1536static bfd_boolean
1537elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1538{
1539 int offset;
1540 size_t size;
1541
1542 switch (note->descsz)
1543 {
1544 default:
1545 return FALSE;
1546
1547 case 396: /* Linux/hppa */
1548 /* pr_cursig */
228e534f 1549 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1550
1551 /* pr_pid */
228e534f 1552 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1553
1554 /* pr_reg */
1555 offset = 72;
1556 size = 320;
1557
1558 break;
1559 }
1560
1561 /* Make a ".reg/999" section. */
1562 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1563 size, note->descpos + offset);
1564}
1565
1566static bfd_boolean
1567elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1568{
1569 switch (note->descsz)
1570 {
1571 default:
1572 return FALSE;
1573
1574 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1575 elf_tdata (abfd)->core->program
edfc032f 1576 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1577 elf_tdata (abfd)->core->command
edfc032f
AM
1578 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1579 }
1580
1581 /* Note that for some reason, a spurious space is tacked
1582 onto the end of the args in some (at least one anyway)
1583 implementations, so strip it off if it exists. */
1584 {
228e534f 1585 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1586 int n = strlen (command);
1587
1588 if (0 < n && command[n - 1] == ' ')
1589 command[n - 1] = '\0';
1590 }
1591
1592 return TRUE;
1593}
1594
74d1c347
AM
1595/* Our own version of hide_symbol, so that we can keep plt entries for
1596 plabels. */
1597
1598static void
c39a58e6 1599elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1600 struct elf_link_hash_entry *eh,
c39a58e6 1601 bfd_boolean force_local)
74d1c347 1602{
e5094212
AM
1603 if (force_local)
1604 {
875c0872
DA
1605 eh->forced_local = 1;
1606 if (eh->dynindx != -1)
e5094212 1607 {
875c0872 1608 eh->dynindx = -1;
e5094212 1609 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1610 eh->dynstr_index);
e5094212 1611 }
31fc8a0b
NC
1612
1613 /* PR 16082: Remove version information from hidden symbol. */
1614 eh->verinfo.verdef = NULL;
1615 eh->verinfo.vertree = NULL;
e5094212
AM
1616 }
1617
4340287b
DA
1618 /* STT_GNU_IFUNC symbol must go through PLT. */
1619 if (! hppa_elf_hash_entry (eh)->plabel
1620 && eh->type != STT_GNU_IFUNC)
74d1c347 1621 {
875c0872 1622 eh->needs_plt = 0;
4340287b 1623 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1624 }
1625}
1626
127e8e9f
AM
1627/* Find any dynamic relocs that apply to read-only sections. */
1628
1629static asection *
1630readonly_dynrelocs (struct elf_link_hash_entry *eh)
1631{
1632 struct elf32_hppa_link_hash_entry *hh;
3bf083ed 1633 struct elf_dyn_relocs *hdh_p;
127e8e9f
AM
1634
1635 hh = hppa_elf_hash_entry (eh);
3bf083ed 1636 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
127e8e9f
AM
1637 {
1638 asection *sec = hdh_p->sec->output_section;
1639
1640 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1641 return hdh_p->sec;
1642 }
1643 return NULL;
1644}
1645
287c7eaf
AM
1646/* Return true if we have dynamic relocs against H or any of its weak
1647 aliases, that apply to read-only sections. Cannot be used after
1648 size_dynamic_sections. */
1649
1650static bfd_boolean
1651alias_readonly_dynrelocs (struct elf_link_hash_entry *eh)
1652{
1653 struct elf32_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1654 do
1655 {
1656 if (readonly_dynrelocs (&hh->eh))
1657 return TRUE;
1658 hh = hppa_elf_hash_entry (hh->eh.u.alias);
1659 } while (hh != NULL && &hh->eh != eh);
1660
1661 return FALSE;
1662}
1663
30667bf3
AM
1664/* Adjust a symbol defined by a dynamic object and referenced by a
1665 regular object. The current definition is in some section of the
1666 dynamic object, but we're not including those sections. We have to
1667 change the definition to something the rest of the link can
1668 understand. */
252b5132 1669
b34976b6 1670static bfd_boolean
c39a58e6 1671elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1672 struct elf_link_hash_entry *eh)
252b5132 1673{
83c81bfe 1674 struct elf32_hppa_link_hash_table *htab;
5474d94f 1675 asection *sec, *srel;
30667bf3
AM
1676
1677 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1678 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1679 if (eh->type == STT_FUNC
1680 || eh->needs_plt)
30667bf3 1681 {
127e8e9f
AM
1682 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh)
1683 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh));
287c7eaf 1684 /* Discard dyn_relocs when non-pic if we've decided that a
529fe20e 1685 function symbol is local. */
287c7eaf
AM
1686 if (!bfd_link_pic (info) && local)
1687 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
127e8e9f 1688
4340287b
DA
1689 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1690 The refcounts are not reliable when it has been hidden since
1691 hide_symbol can be called before the plabel flag is set. */
d336fa6d 1692 if (hppa_elf_hash_entry (eh)->plabel)
4340287b
DA
1693 eh->plt.refcount = 1;
1694
127e8e9f
AM
1695 /* Note that unlike some other backends, the refcount is not
1696 incremented for a non-call (and non-plabel) function reference. */
d336fa6d 1697 else if (eh->plt.refcount <= 0
127e8e9f 1698 || local)
30667bf3
AM
1699 {
1700 /* The .plt entry is not needed when:
1701 a) Garbage collection has removed all references to the
1702 symbol, or
1703 b) We know for certain the symbol is defined in this
74d1c347
AM
1704 object, and it's not a weak definition, nor is the symbol
1705 used by a plabel relocation. Either this object is the
1706 application or we are doing a shared symbolic link. */
875c0872
DA
1707 eh->plt.offset = (bfd_vma) -1;
1708 eh->needs_plt = 0;
30667bf3 1709 }
4dc86686 1710
287c7eaf
AM
1711 /* Unlike other targets, elf32-hppa.c does not define a function
1712 symbol in a non-pic executable on PLT stub code, so we don't
1713 have a local definition in that case. ie. dyn_relocs can't
1714 be discarded. */
1715
127e8e9f 1716 /* Function symbols can't have copy relocs. */
b34976b6 1717 return TRUE;
30667bf3 1718 }
bbd7ec4a 1719 else
875c0872 1720 eh->plt.offset = (bfd_vma) -1;
edd21aca 1721
4a7e5234
AM
1722 htab = hppa_link_hash_table (info);
1723 if (htab == NULL)
1724 return FALSE;
1725
30667bf3
AM
1726 /* If this is a weak symbol, and there is a real definition, the
1727 processor independent code will have arranged for us to see the
1728 real definition first, and we can just use the same value. */
60d67dc8 1729 if (eh->is_weakalias)
edd21aca 1730 {
60d67dc8
AM
1731 struct elf_link_hash_entry *def = weakdef (eh);
1732 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1733 eh->root.u.def.section = def->root.u.def.section;
1734 eh->root.u.def.value = def->root.u.def.value;
4a7e5234
AM
1735 if (def->root.u.def.section == htab->etab.sdynbss
1736 || def->root.u.def.section == htab->etab.sdynrelro)
1737 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
b34976b6 1738 return TRUE;
30667bf3 1739 }
edd21aca 1740
30667bf3
AM
1741 /* This is a reference to a symbol defined by a dynamic object which
1742 is not a function. */
1743
1744 /* If we are creating a shared library, we must presume that the
1745 only references to the symbol are via the global offset table.
1746 For such cases we need not do anything here; the relocations will
1747 be handled correctly by relocate_section. */
0e1862bb 1748 if (bfd_link_pic (info))
b34976b6 1749 return TRUE;
30667bf3
AM
1750
1751 /* If there are no references to this symbol that do not use the
1752 GOT, we don't need to generate a copy reloc. */
875c0872 1753 if (!eh->non_got_ref)
529fe20e 1754 return TRUE;
ebe50bae 1755
127e8e9f
AM
1756 /* If -z nocopyreloc was given, we won't generate them either. */
1757 if (info->nocopyreloc)
529fe20e 1758 return TRUE;
4fc8051d 1759
3bf083ed
AM
1760 /* If we don't find any dynamic relocs in read-only sections, then
1761 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
127e8e9f 1762 if (ELIMINATE_COPY_RELOCS
287c7eaf 1763 && !alias_readonly_dynrelocs (eh))
3bf083ed 1764 return TRUE;
ebe50bae 1765
30667bf3
AM
1766 /* We must allocate the symbol in our .dynbss section, which will
1767 become part of the .bss section of the executable. There will be
1768 an entry for this symbol in the .dynsym section. The dynamic
1769 object will contain position independent code, so all references
1770 from the dynamic object to this symbol will go through the global
1771 offset table. The dynamic linker will use the .dynsym entry to
1772 determine the address it must put in the global offset table, so
1773 both the dynamic object and the regular object will refer to the
1774 same memory location for the variable. */
5474d94f
AM
1775 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1776 {
1777 sec = htab->etab.sdynrelro;
1778 srel = htab->etab.sreldynrelro;
1779 }
1780 else
1781 {
1782 sec = htab->etab.sdynbss;
1783 srel = htab->etab.srelbss;
1784 }
1d7e9d18 1785 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1786 {
4a7e5234
AM
1787 /* We must generate a COPY reloc to tell the dynamic linker to
1788 copy the initial value out of the dynamic object and into the
1789 runtime process image. */
5474d94f 1790 srel->size += sizeof (Elf32_External_Rela);
875c0872 1791 eh->needs_copy = 1;
edd21aca 1792 }
252b5132 1793
529fe20e 1794 /* We no longer want dyn_relocs. */
287c7eaf 1795 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
6cabe1ea 1796 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
252b5132
RH
1797}
1798
46434633 1799/* If EH is undefined, make it dynamic if that makes sense. */
595e0a47
AM
1800
1801static bfd_boolean
46434633
AM
1802ensure_undef_dynamic (struct bfd_link_info *info,
1803 struct elf_link_hash_entry *eh)
595e0a47 1804{
46434633
AM
1805 struct elf_link_hash_table *htab = elf_hash_table (info);
1806
1807 if (htab->dynamic_sections_created
1808 && (eh->root.type == bfd_link_hash_undefweak
1809 || eh->root.type == bfd_link_hash_undefined)
1810 && eh->dynindx == -1
595e0a47
AM
1811 && !eh->forced_local
1812 && eh->type != STT_PARISC_MILLI
60c1b909 1813 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)
595e0a47
AM
1814 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1815 return bfd_elf_link_record_dynamic_symbol (info, eh);
1816 return TRUE;
1817}
1818
e5ee5df1 1819/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1820 ie. plabel entries. */
a8d02d66 1821
b34976b6 1822static bfd_boolean
875c0872 1823allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1824{
1825 struct bfd_link_info *info;
1826 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1827 struct elf32_hppa_link_hash_entry *hh;
1828 asection *sec;
a8d02d66 1829
875c0872 1830 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1831 return TRUE;
a8d02d66 1832
875c0872 1833 info = (struct bfd_link_info *) inf;
9b52905e 1834 hh = hppa_elf_hash_entry (eh);
a8d02d66 1835 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1836 if (htab == NULL)
1837 return FALSE;
1838
a63e02c7 1839 if (htab->etab.dynamic_sections_created
875c0872 1840 && eh->plt.refcount > 0)
e5ee5df1 1841 {
46434633 1842 if (!ensure_undef_dynamic (info, eh))
595e0a47 1843 return FALSE;
e5ee5df1 1844
0e1862bb 1845 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
e5ee5df1 1846 {
067fa4a6
AM
1847 /* Allocate these later. From this point on, h->plabel
1848 means that the plt entry is only used by a plabel.
1849 We'll be using a normal plt entry for this symbol, so
1850 clear the plabel indicator. */
68ffbac6 1851
875c0872 1852 hh->plabel = 0;
e5ee5df1 1853 }
875c0872 1854 else if (hh->plabel)
e5ee5df1
AM
1855 {
1856 /* Make an entry in the .plt section for plabel references
1857 that won't have a .plt entry for other reasons. */
ce558b89 1858 sec = htab->etab.splt;
875c0872
DA
1859 eh->plt.offset = sec->size;
1860 sec->size += PLT_ENTRY_SIZE;
247d6c4c
AM
1861 if (bfd_link_pic (info))
1862 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
a8d02d66
AM
1863 }
1864 else
e5ee5df1
AM
1865 {
1866 /* No .plt entry needed. */
875c0872
DA
1867 eh->plt.offset = (bfd_vma) -1;
1868 eh->needs_plt = 0;
e5ee5df1
AM
1869 }
1870 }
1871 else
1872 {
875c0872
DA
1873 eh->plt.offset = (bfd_vma) -1;
1874 eh->needs_plt = 0;
a8d02d66
AM
1875 }
1876
b34976b6 1877 return TRUE;
a8d02d66
AM
1878}
1879
2e684e75
AM
1880/* Calculate size of GOT entries for symbol given its TLS_TYPE. */
1881
1882static inline unsigned int
1883got_entries_needed (int tls_type)
1884{
1885 unsigned int need = 0;
1886
1887 if ((tls_type & GOT_NORMAL) != 0)
1888 need += GOT_ENTRY_SIZE;
1889 if ((tls_type & GOT_TLS_GD) != 0)
1890 need += GOT_ENTRY_SIZE * 2;
1891 if ((tls_type & GOT_TLS_IE) != 0)
1892 need += GOT_ENTRY_SIZE;
1893 return need;
1894}
1895
1896/* Calculate size of relocs needed for symbol given its TLS_TYPE and
4352556b
AM
1897 NEEDed GOT entries. TPREL_KNOWN says a TPREL offset can be
1898 calculated at link time. DTPREL_KNOWN says the same for a DTPREL
1899 offset. */
2e684e75
AM
1900
1901static inline unsigned int
4352556b
AM
1902got_relocs_needed (int tls_type, unsigned int need,
1903 bfd_boolean dtprel_known, bfd_boolean tprel_known)
2e684e75
AM
1904{
1905 /* All the entries we allocated need relocs.
4352556b
AM
1906 Except for GD and IE with local symbols. */
1907 if ((tls_type & GOT_TLS_GD) != 0 && dtprel_known)
1908 need -= GOT_ENTRY_SIZE;
1909 if ((tls_type & GOT_TLS_IE) != 0 && tprel_known)
2e684e75
AM
1910 need -= GOT_ENTRY_SIZE;
1911 return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE;
1912}
1913
4dc86686
AM
1914/* Allocate space in .plt, .got and associated reloc sections for
1915 global syms. */
1916
b34976b6 1917static bfd_boolean
875c0872 1918allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1919{
1920 struct bfd_link_info *info;
83c81bfe 1921 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1922 asection *sec;
1923 struct elf32_hppa_link_hash_entry *hh;
3bf083ed 1924 struct elf_dyn_relocs *hdh_p;
4dc86686 1925
875c0872 1926 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1927 return TRUE;
73a74a62 1928
c39a58e6 1929 info = inf;
83c81bfe 1930 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1931 if (htab == NULL)
1932 return FALSE;
1933
875c0872 1934 hh = hppa_elf_hash_entry (eh);
68ffbac6 1935
a63e02c7 1936 if (htab->etab.dynamic_sections_created
875c0872
DA
1937 && eh->plt.offset != (bfd_vma) -1
1938 && !hh->plabel
1939 && eh->plt.refcount > 0)
4dc86686 1940 {
e5ee5df1 1941 /* Make an entry in the .plt section. */
ce558b89 1942 sec = htab->etab.splt;
875c0872
DA
1943 eh->plt.offset = sec->size;
1944 sec->size += PLT_ENTRY_SIZE;
3ac8354b 1945
e5ee5df1 1946 /* We also need to make an entry in the .rela.plt section. */
ce558b89 1947 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 1948 htab->need_plt_stub = 1;
4dc86686 1949 }
edd21aca 1950
875c0872 1951 if (eh->got.refcount > 0)
4dc86686 1952 {
2e684e75
AM
1953 unsigned int need;
1954
46434633 1955 if (!ensure_undef_dynamic (info, eh))
595e0a47 1956 return FALSE;
446f2863 1957
ce558b89 1958 sec = htab->etab.sgot;
875c0872 1959 eh->got.offset = sec->size;
2e684e75
AM
1960 need = got_entries_needed (hh->tls_type);
1961 sec->size += need;
a63e02c7 1962 if (htab->etab.dynamic_sections_created
4352556b
AM
1963 && (bfd_link_dll (info)
1964 || (bfd_link_pic (info) && (hh->tls_type & GOT_NORMAL) != 0)
875c0872 1965 || (eh->dynindx != -1
d336fa6d
AM
1966 && !SYMBOL_REFERENCES_LOCAL (info, eh)))
1967 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
ce757d15 1968 {
4352556b 1969 bfd_boolean local = SYMBOL_REFERENCES_LOCAL (info, eh);
2e684e75 1970 htab->etab.srelgot->size
4352556b
AM
1971 += got_relocs_needed (hh->tls_type, need, local,
1972 local && bfd_link_executable (info));
ce757d15 1973 }
4dc86686
AM
1974 }
1975 else
875c0872 1976 eh->got.offset = (bfd_vma) -1;
30667bf3 1977
d336fa6d
AM
1978 /* If no dynamic sections we can't have dynamic relocs. */
1979 if (!htab->etab.dynamic_sections_created)
1980 hh->dyn_relocs = NULL;
1981
529fe20e
AM
1982 /* Discard relocs on undefined syms with non-default visibility. */
1983 else if ((eh->root.type == bfd_link_hash_undefined
1984 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
1985 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
1986 hh->dyn_relocs = NULL;
1987
875c0872 1988 if (hh->dyn_relocs == NULL)
287c7eaf 1989 return TRUE;
30667bf3 1990
98ceb8ce
AM
1991 /* If this is a -Bsymbolic shared link, then we need to discard all
1992 space allocated for dynamic pc-relative relocs against symbols
1993 defined in a regular object. For the normal shared case, discard
1994 space for relocs that have become local due to symbol visibility
1995 changes. */
0e1862bb 1996 if (bfd_link_pic (info))
446f2863 1997 {
98ceb8ce 1998#if RELATIVE_DYNRELOCS
529fe20e 1999 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2000 {
3bf083ed 2001 struct elf_dyn_relocs **hdh_pp;
30667bf3 2002
875c0872 2003 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2004 {
3bf083ed
AM
2005 hdh_p->count -= hdh_p->pc_count;
2006 hdh_p->pc_count = 0;
875c0872 2007 if (hdh_p->count == 0)
3bf083ed 2008 *hdh_pp = hdh_p->next;
98ceb8ce 2009 else
3bf083ed 2010 hdh_pp = &hdh_p->next;
98ceb8ce
AM
2011 }
2012 }
2013#endif
4fc8051d 2014
46434633 2015 if (hh->dyn_relocs != NULL)
22d606e9 2016 {
46434633 2017 if (!ensure_undef_dynamic (info, eh))
595e0a47 2018 return FALSE;
22d606e9 2019 }
446f2863 2020 }
d336fa6d 2021 else if (ELIMINATE_COPY_RELOCS)
30667bf3 2022 {
98ceb8ce
AM
2023 /* For the non-shared case, discard space for relocs against
2024 symbols which turn out to need copy relocs or are not
2025 dynamic. */
68ffbac6 2026
529fe20e 2027 if (eh->dynamic_adjusted
529fe20e
AM
2028 && !eh->def_regular
2029 && !ELF_COMMON_DEF_P (eh))
98ceb8ce 2030 {
46434633 2031 if (!ensure_undef_dynamic (info, eh))
595e0a47 2032 return FALSE;
98ceb8ce 2033
46434633 2034 if (eh->dynindx == -1)
287c7eaf 2035 hh->dyn_relocs = NULL;
98ceb8ce 2036 }
46434633 2037 else
287c7eaf 2038 hh->dyn_relocs = NULL;
30667bf3 2039 }
30667bf3 2040
98ceb8ce 2041 /* Finally, allocate space. */
3bf083ed 2042 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
30667bf3 2043 {
875c0872
DA
2044 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2045 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2046 }
30667bf3 2047
b34976b6 2048 return TRUE;
30667bf3 2049}
30667bf3 2050
d5c73c2f
AM
2051/* This function is called via elf_link_hash_traverse to force
2052 millicode symbols local so they do not end up as globals in the
2053 dynamic symbol table. We ought to be able to do this in
2054 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2055 for all dynamic symbols. Arguably, this is a bug in
2056 elf_adjust_dynamic_symbol. */
2057
b34976b6 2058static bfd_boolean
875c0872 2059clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2060 struct bfd_link_info *info)
d5c73c2f 2061{
875c0872
DA
2062 if (eh->type == STT_PARISC_MILLI
2063 && !eh->forced_local)
e0522e89 2064 {
875c0872 2065 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2066 }
b34976b6 2067 return TRUE;
d5c73c2f
AM
2068}
2069
127e8e9f
AM
2070/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2071 read-only sections. */
98ceb8ce 2072
b34976b6 2073static bfd_boolean
127e8e9f 2074maybe_set_textrel (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2075{
127e8e9f 2076 asection *sec;
98ceb8ce 2077
127e8e9f
AM
2078 if (eh->root.type == bfd_link_hash_indirect)
2079 return TRUE;
98ceb8ce 2080
127e8e9f
AM
2081 sec = readonly_dynrelocs (eh);
2082 if (sec != NULL)
2083 {
2084 struct bfd_link_info *info = (struct bfd_link_info *) inf;
98ceb8ce 2085
127e8e9f
AM
2086 info->flags |= DF_TEXTREL;
2087 info->callbacks->minfo
c1c8c1ef 2088 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 2089 sec->owner, eh->root.root.string, sec);
98ceb8ce 2090
127e8e9f
AM
2091 /* Not an error, just cut short the traversal. */
2092 return FALSE;
98ceb8ce 2093 }
b34976b6 2094 return TRUE;
98ceb8ce
AM
2095}
2096
30667bf3
AM
2097/* Set the sizes of the dynamic sections. */
2098
b34976b6 2099static bfd_boolean
c39a58e6
AM
2100elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2101 struct bfd_link_info *info)
30667bf3 2102{
83c81bfe 2103 struct elf32_hppa_link_hash_table *htab;
30667bf3 2104 bfd *dynobj;
98ceb8ce 2105 bfd *ibfd;
875c0872 2106 asection *sec;
b34976b6 2107 bfd_boolean relocs;
30667bf3 2108
83c81bfe 2109 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2110 if (htab == NULL)
2111 return FALSE;
2112
a63e02c7 2113 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2114 if (dynobj == NULL)
2115 abort ();
30667bf3 2116
a63e02c7 2117 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2118 {
2119 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2120 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2121 {
3d4d4302 2122 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2123 if (sec == NULL)
49e9d0d3 2124 abort ();
875c0872
DA
2125 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2126 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2127 }
74d1c347 2128
d5c73c2f 2129 /* Force millicode symbols local. */
a63e02c7 2130 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2131 clobber_millicode_symbols,
2132 info);
68fb2e56 2133 }
d5c73c2f 2134
98ceb8ce
AM
2135 /* Set up .got and .plt offsets for local syms, and space for local
2136 dynamic relocs. */
c72f2fb2 2137 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2138 {
2139 bfd_signed_vma *local_got;
2140 bfd_signed_vma *end_local_got;
2141 bfd_signed_vma *local_plt;
2142 bfd_signed_vma *end_local_plt;
2143 bfd_size_type locsymcount;
2144 Elf_Internal_Shdr *symtab_hdr;
2145 asection *srel;
9b52905e 2146 char *local_tls_type;
74d1c347 2147
98ceb8ce 2148 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2149 continue;
4dc86686 2150
875c0872 2151 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2152 {
3bf083ed 2153 struct elf_dyn_relocs *hdh_p;
98ceb8ce 2154
3bf083ed 2155 for (hdh_p = ((struct elf_dyn_relocs *)
875c0872
DA
2156 elf_section_data (sec)->local_dynrel);
2157 hdh_p != NULL;
3bf083ed 2158 hdh_p = hdh_p->next)
98ceb8ce 2159 {
875c0872
DA
2160 if (!bfd_is_abs_section (hdh_p->sec)
2161 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2162 {
2163 /* Input section has been discarded, either because
2164 it is a copy of a linkonce section or due to
2165 linker script /DISCARD/, so we'll be discarding
2166 the relocs too. */
2167 }
875c0872 2168 else if (hdh_p->count != 0)
ec338859 2169 {
875c0872
DA
2170 srel = elf_section_data (hdh_p->sec)->sreloc;
2171 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2172 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2173 info->flags |= DF_TEXTREL;
ec338859 2174 }
98ceb8ce
AM
2175 }
2176 }
2177
2178 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2179 if (!local_got)
2180 continue;
74d1c347 2181
98ceb8ce 2182 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2183 locsymcount = symtab_hdr->sh_info;
2184 end_local_got = local_got + locsymcount;
9b52905e 2185 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
ce558b89
AM
2186 sec = htab->etab.sgot;
2187 srel = htab->etab.srelgot;
68fb2e56
AM
2188 for (; local_got < end_local_got; ++local_got)
2189 {
2190 if (*local_got > 0)
4dc86686 2191 {
2e684e75
AM
2192 unsigned int need;
2193
875c0872 2194 *local_got = sec->size;
2e684e75
AM
2195 need = got_entries_needed (*local_tls_type);
2196 sec->size += need;
4352556b
AM
2197 if (bfd_link_dll (info)
2198 || (bfd_link_pic (info)
2199 && (*local_tls_type & GOT_NORMAL) != 0))
2200 htab->etab.srelgot->size
2201 += got_relocs_needed (*local_tls_type, need, TRUE,
2202 bfd_link_executable (info));
4dc86686 2203 }
68fb2e56
AM
2204 else
2205 *local_got = (bfd_vma) -1;
9b52905e
NC
2206
2207 ++local_tls_type;
68fb2e56 2208 }
74d1c347 2209
68fb2e56
AM
2210 local_plt = end_local_got;
2211 end_local_plt = local_plt + locsymcount;
a63e02c7 2212 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2213 {
2214 /* Won't be used, but be safe. */
2215 for (; local_plt < end_local_plt; ++local_plt)
2216 *local_plt = (bfd_vma) -1;
2217 }
2218 else
2219 {
ce558b89
AM
2220 sec = htab->etab.splt;
2221 srel = htab->etab.srelplt;
74d1c347
AM
2222 for (; local_plt < end_local_plt; ++local_plt)
2223 {
2224 if (*local_plt > 0)
2225 {
875c0872
DA
2226 *local_plt = sec->size;
2227 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2228 if (bfd_link_pic (info))
eea6121a 2229 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2230 }
2231 else
2232 *local_plt = (bfd_vma) -1;
2233 }
2234 }
30667bf3 2235 }
68ffbac6 2236
9b52905e
NC
2237 if (htab->tls_ldm_got.refcount > 0)
2238 {
68ffbac6 2239 /* Allocate 2 got entries and 1 dynamic reloc for
07d6d2b8 2240 R_PARISC_TLS_DTPMOD32 relocs. */
ce558b89
AM
2241 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2242 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2243 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2244 }
2245 else
2246 htab->tls_ldm_got.offset = -1;
30667bf3 2247
e5ee5df1
AM
2248 /* Do all the .plt entries without relocs first. The dynamic linker
2249 uses the last .plt reloc to find the end of the .plt (and hence
2250 the start of the .got) for lazy linking. */
a63e02c7 2251 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2252
98ceb8ce
AM
2253 /* Allocate global sym .plt and .got entries, and space for global
2254 sym dynamic relocs. */
a63e02c7 2255 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2256
2257 /* The check_relocs and adjust_dynamic_symbol entry points have
2258 determined the sizes of the various dynamic sections. Allocate
2259 memory for them. */
b34976b6 2260 relocs = FALSE;
875c0872 2261 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2262 {
875c0872 2263 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2264 continue;
2265
ce558b89 2266 if (sec == htab->etab.splt)
68fb2e56 2267 {
83c81bfe 2268 if (htab->need_plt_stub)
68fb2e56
AM
2269 {
2270 /* Make space for the plt stub at the end of the .plt
2271 section. We want this stub right at the end, up
2272 against the .got section. */
ce558b89 2273 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
875c0872 2274 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2275 bfd_size_type mask;
30667bf3 2276
68fb2e56 2277 if (gotalign > pltalign)
a253d456 2278 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2279 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2280 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2281 }
2282 }
ce558b89 2283 else if (sec == htab->etab.sgot
5474d94f
AM
2284 || sec == htab->etab.sdynbss
2285 || sec == htab->etab.sdynrelro)
68fb2e56 2286 ;
0112cd26 2287 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2288 {
875c0872 2289 if (sec->size != 0)
30667bf3 2290 {
4e12ff7f
AM
2291 /* Remember whether there are any reloc sections other
2292 than .rela.plt. */
ce558b89 2293 if (sec != htab->etab.srelplt)
b34976b6 2294 relocs = TRUE;
47d89dba 2295
30667bf3
AM
2296 /* We use the reloc_count field as a counter if we need
2297 to copy relocs into the output file. */
875c0872 2298 sec->reloc_count = 0;
30667bf3
AM
2299 }
2300 }
30667bf3
AM
2301 else
2302 {
2303 /* It's not one of our sections, so don't allocate space. */
2304 continue;
2305 }
2306
875c0872 2307 if (sec->size == 0)
30667bf3
AM
2308 {
2309 /* If we don't need this section, strip it from the
2310 output file. This is mostly to handle .rela.bss and
2311 .rela.plt. We must create both sections in
2312 create_dynamic_sections, because they must be created
2313 before the linker maps input sections to output
2314 sections. The linker does that before
2315 adjust_dynamic_symbol is called, and it is that
2316 function which decides whether anything needs to go
2317 into these sections. */
875c0872 2318 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2319 continue;
2320 }
2321
c456f082
AM
2322 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2323 continue;
2324
30667bf3
AM
2325 /* Allocate memory for the section contents. Zero it, because
2326 we may not fill in all the reloc sections. */
875c0872 2327 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2328 if (sec->contents == NULL)
b34976b6 2329 return FALSE;
30667bf3
AM
2330 }
2331
a63e02c7 2332 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2333 {
2334 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2335 actually has nothing to do with the PLT, it is how we
2336 communicate the LTP value of a load module to the dynamic
2337 linker. */
dc810e39 2338#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2339 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2340
2341 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2342 return FALSE;
30667bf3
AM
2343
2344 /* Add some entries to the .dynamic section. We fill in the
2345 values later, in elf32_hppa_finish_dynamic_sections, but we
2346 must add the entries now so that we get the correct size for
2347 the .dynamic section. The DT_DEBUG entry is filled in by the
2348 dynamic linker and used by the debugger. */
0e1862bb 2349 if (bfd_link_executable (info))
30667bf3 2350 {
dc810e39 2351 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2352 return FALSE;
30667bf3
AM
2353 }
2354
ce558b89 2355 if (htab->etab.srelplt->size != 0)
30667bf3 2356 {
dc810e39
AM
2357 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2358 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2359 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2360 return FALSE;
30667bf3
AM
2361 }
2362
2363 if (relocs)
2364 {
dc810e39
AM
2365 if (!add_dynamic_entry (DT_RELA, 0)
2366 || !add_dynamic_entry (DT_RELASZ, 0)
2367 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2368 return FALSE;
30667bf3 2369
98ceb8ce
AM
2370 /* If any dynamic relocs apply to a read-only section,
2371 then we need a DT_TEXTREL entry. */
248866a8 2372 if ((info->flags & DF_TEXTREL) == 0)
127e8e9f 2373 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
98ceb8ce
AM
2374
2375 if ((info->flags & DF_TEXTREL) != 0)
2376 {
2377 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2378 return FALSE;
98ceb8ce 2379 }
30667bf3
AM
2380 }
2381 }
dc810e39 2382#undef add_dynamic_entry
30667bf3 2383
b34976b6 2384 return TRUE;
30667bf3
AM
2385}
2386
30667bf3
AM
2387/* External entry points for sizing and building linker stubs. */
2388
b4655ea9
AM
2389/* Set up various things so that we can make a list of input sections
2390 for each output section included in the link. Returns -1 on error,
cedb70c5 2391 0 when no stubs will be needed, and 1 on success. */
30667bf3 2392
b4655ea9 2393int
c39a58e6 2394elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2395{
2396 bfd *input_bfd;
b4655ea9 2397 unsigned int bfd_count;
7292b3ac 2398 unsigned int top_id, top_index;
30667bf3 2399 asection *section;
25f72752 2400 asection **input_list, **list;
dc810e39 2401 bfd_size_type amt;
b4655ea9 2402 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2403
4dfe6ac6
NC
2404 if (htab == NULL)
2405 return -1;
2406
1badb539
AM
2407 /* Count the number of input BFDs and find the top input section id. */
2408 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2409 input_bfd != NULL;
c72f2fb2 2410 input_bfd = input_bfd->link.next)
30667bf3
AM
2411 {
2412 bfd_count += 1;
25f72752
AM
2413 for (section = input_bfd->sections;
2414 section != NULL;
2415 section = section->next)
2416 {
2417 if (top_id < section->id)
2418 top_id = section->id;
2419 }
30667bf3 2420 }
b4655ea9 2421 htab->bfd_count = bfd_count;
30667bf3 2422
dc810e39 2423 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2424 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2425 if (htab->stub_group == NULL)
b4655ea9 2426 return -1;
1badb539 2427
b4655ea9 2428 /* We can't use output_bfd->section_count here to find the top output
1badb539 2429 section index as some sections may have been removed, and
8423293d 2430 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2431 for (section = output_bfd->sections, top_index = 0;
2432 section != NULL;
2433 section = section->next)
2434 {
2435 if (top_index < section->index)
2436 top_index = section->index;
2437 }
2438
b4655ea9 2439 htab->top_index = top_index;
dc810e39 2440 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2441 input_list = bfd_malloc (amt);
b4655ea9 2442 htab->input_list = input_list;
25f72752 2443 if (input_list == NULL)
b4655ea9 2444 return -1;
25f72752 2445
1badb539
AM
2446 /* For sections we aren't interested in, mark their entries with a
2447 value we can check later. */
2448 list = input_list + top_index;
2449 do
2450 *list = bfd_abs_section_ptr;
2451 while (list-- != input_list);
2452
2453 for (section = output_bfd->sections;
2454 section != NULL;
2455 section = section->next)
2456 {
47d89dba 2457 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2458 input_list[section->index] = NULL;
2459 }
2460
b4655ea9
AM
2461 return 1;
2462}
2463
2464/* The linker repeatedly calls this function for each input section,
2465 in the order that input sections are linked into output sections.
2466 Build lists of input sections to determine groupings between which
2467 we may insert linker stubs. */
2468
2469void
c39a58e6 2470elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2471{
2472 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2473
4dfe6ac6
NC
2474 if (htab == NULL)
2475 return;
2476
b4655ea9 2477 if (isec->output_section->index <= htab->top_index)
25f72752 2478 {
b4655ea9
AM
2479 asection **list = htab->input_list + isec->output_section->index;
2480 if (*list != bfd_abs_section_ptr)
25f72752 2481 {
b4655ea9 2482 /* Steal the link_sec pointer for our list. */
83c81bfe 2483#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2484 /* This happens to make the list in reverse order,
2485 which is what we want. */
2486 PREV_SEC (isec) = *list;
2487 *list = isec;
25f72752
AM
2488 }
2489 }
b4655ea9 2490}
25f72752 2491
b4655ea9
AM
2492/* See whether we can group stub sections together. Grouping stub
2493 sections may result in fewer stubs. More importantly, we need to
2494 put all .init* and .fini* stubs at the beginning of the .init or
2495 .fini output sections respectively, because glibc splits the
2496 _init and _fini functions into multiple parts. Putting a stub in
2497 the middle of a function is not a good idea. */
2498
2499static void
c39a58e6
AM
2500group_sections (struct elf32_hppa_link_hash_table *htab,
2501 bfd_size_type stub_group_size,
2502 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2503{
2504 asection **list = htab->input_list + htab->top_index;
1badb539 2505 do
25f72752
AM
2506 {
2507 asection *tail = *list;
1badb539
AM
2508 if (tail == bfd_abs_section_ptr)
2509 continue;
25f72752
AM
2510 while (tail != NULL)
2511 {
2512 asection *curr;
2513 asection *prev;
2514 bfd_size_type total;
00b28bb0 2515 bfd_boolean big_sec;
25f72752
AM
2516
2517 curr = tail;
eea6121a 2518 total = tail->size;
00b28bb0
AM
2519 big_sec = total >= stub_group_size;
2520
25f72752
AM
2521 while ((prev = PREV_SEC (curr)) != NULL
2522 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2523 < stub_group_size))
25f72752
AM
2524 curr = prev;
2525
2526 /* OK, the size from the start of CURR to the end is less
a248e267 2527 than 240000 bytes and thus can be handled by one stub
25f72752 2528 section. (or the tail section is itself larger than
a248e267 2529 240000 bytes, in which case we may be toast.)
25f72752
AM
2530 We should really be keeping track of the total size of
2531 stubs added here, as stubs contribute to the final output
2532 section size. That's a little tricky, and this way will
a248e267
AM
2533 only break if stubs added total more than 22144 bytes, or
2534 2768 long branch stubs. It seems unlikely for more than
2535 2768 different functions to be called, especially from
2536 code only 240000 bytes long. This limit used to be
2537 250000, but c++ code tends to generate lots of little
2538 functions, and sometimes violated the assumption. */
25f72752
AM
2539 do
2540 {
2541 prev = PREV_SEC (tail);
2542 /* Set up this stub group. */
83c81bfe 2543 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2544 }
2545 while (tail != curr && (tail = prev) != NULL);
2546
a248e267 2547 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2548 bytes before the stub section can be handled by it too.
2549 Don't do this if we have a really large section after the
2550 stubs, as adding more stubs increases the chance that
2551 branches may not reach into the stub section. */
2552 if (!stubs_always_before_branch && !big_sec)
25f72752 2553 {
47d89dba
AM
2554 total = 0;
2555 while (prev != NULL
2556 && ((total += tail->output_offset - prev->output_offset)
2557 < stub_group_size))
2558 {
2559 tail = prev;
2560 prev = PREV_SEC (tail);
83c81bfe 2561 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2562 }
25f72752
AM
2563 }
2564 tail = prev;
2565 }
2566 }
b4655ea9
AM
2567 while (list-- != htab->input_list);
2568 free (htab->input_list);
1badb539 2569#undef PREV_SEC
b4655ea9
AM
2570}
2571
2572/* Read in all local syms for all input bfds, and create hash entries
2573 for export stubs if we are building a multi-subspace shared lib.
2574 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2575
2576static int
c39a58e6 2577get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2578{
2579 unsigned int bfd_indx;
2580 Elf_Internal_Sym *local_syms, **all_local_syms;
2581 int stub_changed = 0;
2582 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2583
4dfe6ac6
NC
2584 if (htab == NULL)
2585 return -1;
2586
30667bf3
AM
2587 /* We want to read in symbol extension records only once. To do this
2588 we need to read in the local symbols in parallel and save them for
2589 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2590 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2591 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2592 htab->all_local_syms = all_local_syms;
30667bf3 2593 if (all_local_syms == NULL)
b4655ea9 2594 return -1;
30667bf3
AM
2595
2596 /* Walk over all the input BFDs, swapping in local symbols.
2597 If we are creating a shared library, create hash entries for the
2598 export stubs. */
b4655ea9 2599 for (bfd_indx = 0;
30667bf3 2600 input_bfd != NULL;
c72f2fb2 2601 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2602 {
2603 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2604
252b5132
RH
2605 /* We'll need the symbol table in a second. */
2606 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2607 if (symtab_hdr->sh_info == 0)
2608 continue;
2609
6cdc0ccc
AM
2610 /* We need an array of the local symbols attached to the input bfd. */
2611 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2612 if (local_syms == NULL)
edd21aca 2613 {
6cdc0ccc
AM
2614 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2615 symtab_hdr->sh_info, 0,
2616 NULL, NULL, NULL);
2617 /* Cache them for elf_link_input_bfd. */
2618 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2619 }
6cdc0ccc
AM
2620 if (local_syms == NULL)
2621 return -1;
edd21aca 2622
6cdc0ccc 2623 all_local_syms[bfd_indx] = local_syms;
edd21aca 2624
0e1862bb 2625 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2626 {
875c0872
DA
2627 struct elf_link_hash_entry **eh_syms;
2628 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2629 unsigned int symcount;
2630
2631 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2632 - symtab_hdr->sh_info);
875c0872
DA
2633 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2634 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2635
2636 /* Look through the global syms for functions; We need to
2637 build export stubs for all globally visible functions. */
875c0872 2638 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2639 {
875c0872 2640 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2641
875c0872 2642 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2643
a63e02c7
DA
2644 while (hh->eh.root.type == bfd_link_hash_indirect
2645 || hh->eh.root.type == bfd_link_hash_warning)
2646 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2647
2648 /* At this point in the link, undefined syms have been
2649 resolved, so we need to check that the symbol was
2650 defined in this BFD. */
a63e02c7
DA
2651 if ((hh->eh.root.type == bfd_link_hash_defined
2652 || hh->eh.root.type == bfd_link_hash_defweak)
2653 && hh->eh.type == STT_FUNC
2654 && hh->eh.root.u.def.section->output_section != NULL
2655 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2656 == output_bfd)
a63e02c7
DA
2657 && hh->eh.root.u.def.section->owner == input_bfd
2658 && hh->eh.def_regular
2659 && !hh->eh.forced_local
2660 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2661 {
2662 asection *sec;
2663 const char *stub_name;
875c0872 2664 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2665
a63e02c7 2666 sec = hh->eh.root.u.def.section;
9b52905e 2667 stub_name = hh_name (hh);
a63e02c7 2668 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2669 stub_name,
b34976b6 2670 FALSE, FALSE);
875c0872 2671 if (hsh == NULL)
30667bf3 2672 {
875c0872
DA
2673 hsh = hppa_add_stub (stub_name, sec, htab);
2674 if (!hsh)
b4655ea9 2675 return -1;
30667bf3 2676
a63e02c7
DA
2677 hsh->target_value = hh->eh.root.u.def.value;
2678 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2679 hsh->stub_type = hppa_stub_export;
a63e02c7 2680 hsh->hh = hh;
30667bf3
AM
2681 stub_changed = 1;
2682 }
2683 else
2684 {
695344c0 2685 /* xgettext:c-format */
871b3ab2 2686 _bfd_error_handler (_("%pB: duplicate export stub %s"),
4eca0228 2687 input_bfd, stub_name);
30667bf3
AM
2688 }
2689 }
2690 }
30667bf3
AM
2691 }
2692 }
edd21aca 2693
b4655ea9
AM
2694 return stub_changed;
2695}
2696
2697/* Determine and set the size of the stub section for a final link.
2698
2699 The basic idea here is to examine all the relocations looking for
2700 PC-relative calls to a target that is unreachable with a "bl"
2701 instruction. */
2702
b34976b6 2703bfd_boolean
c39a58e6
AM
2704elf32_hppa_size_stubs
2705 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2706 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2707 asection * (*add_stub_section) (const char *, asection *),
2708 void (*layout_sections_again) (void))
b4655ea9
AM
2709{
2710 bfd_size_type stub_group_size;
b34976b6
AM
2711 bfd_boolean stubs_always_before_branch;
2712 bfd_boolean stub_changed;
b4655ea9
AM
2713 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2714
4dfe6ac6
NC
2715 if (htab == NULL)
2716 return FALSE;
2717
b4655ea9
AM
2718 /* Stash our params away. */
2719 htab->stub_bfd = stub_bfd;
2720 htab->multi_subspace = multi_subspace;
2721 htab->add_stub_section = add_stub_section;
2722 htab->layout_sections_again = layout_sections_again;
2723 stubs_always_before_branch = group_size < 0;
2724 if (group_size < 0)
2725 stub_group_size = -group_size;
2726 else
2727 stub_group_size = group_size;
2728 if (stub_group_size == 1)
2729 {
2730 /* Default values. */
acc990f2
AM
2731 if (stubs_always_before_branch)
2732 {
2733 stub_group_size = 7680000;
2734 if (htab->has_17bit_branch || htab->multi_subspace)
2735 stub_group_size = 240000;
2736 if (htab->has_12bit_branch)
2737 stub_group_size = 7500;
2738 }
2739 else
2740 {
2741 stub_group_size = 6971392;
2742 if (htab->has_17bit_branch || htab->multi_subspace)
2743 stub_group_size = 217856;
2744 if (htab->has_12bit_branch)
2745 stub_group_size = 6808;
2746 }
b4655ea9
AM
2747 }
2748
2749 group_sections (htab, stub_group_size, stubs_always_before_branch);
2750
2751 switch (get_local_syms (output_bfd, info->input_bfds, info))
2752 {
2753 default:
2754 if (htab->all_local_syms)
2755 goto error_ret_free_local;
b34976b6 2756 return FALSE;
b4655ea9
AM
2757
2758 case 0:
b34976b6 2759 stub_changed = FALSE;
b4655ea9
AM
2760 break;
2761
2762 case 1:
b34976b6 2763 stub_changed = TRUE;
b4655ea9
AM
2764 break;
2765 }
2766
edd21aca
AM
2767 while (1)
2768 {
b4655ea9
AM
2769 bfd *input_bfd;
2770 unsigned int bfd_indx;
30667bf3
AM
2771 asection *stub_sec;
2772
25f72752 2773 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2774 input_bfd != NULL;
c72f2fb2 2775 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2776 {
2777 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2778 asection *section;
2779 Elf_Internal_Sym *local_syms;
30667bf3
AM
2780
2781 /* We'll need the symbol table in a second. */
2782 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2783 if (symtab_hdr->sh_info == 0)
2784 continue;
2785
b4655ea9 2786 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2787
2788 /* Walk over each section attached to the input bfd. */
2789 for (section = input_bfd->sections;
2790 section != NULL;
25f72752 2791 section = section->next)
30667bf3 2792 {
30667bf3
AM
2793 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2794
2795 /* If there aren't any relocs, then there's nothing more
2796 to do. */
2797 if ((section->flags & SEC_RELOC) == 0
2798 || section->reloc_count == 0)
2799 continue;
2800
25f72752
AM
2801 /* If this section is a link-once section that will be
2802 discarded, then don't create any stubs. */
2803 if (section->output_section == NULL
2804 || section->output_section->owner != output_bfd)
2805 continue;
2806
1e2f5b6e
AM
2807 /* Get the relocs. */
2808 internal_relocs
c39a58e6 2809 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2810 info->keep_memory);
30667bf3 2811 if (internal_relocs == NULL)
1e2f5b6e 2812 goto error_ret_free_local;
30667bf3
AM
2813
2814 /* Now examine each relocation. */
2815 irela = internal_relocs;
2816 irelaend = irela + section->reloc_count;
2817 for (; irela < irelaend; irela++)
2818 {
2819 unsigned int r_type, r_indx;
2820 enum elf32_hppa_stub_type stub_type;
875c0872 2821 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2822 asection *sym_sec;
2823 bfd_vma sym_value;
2824 bfd_vma destination;
875c0872 2825 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2826 char *stub_name;
25f72752 2827 const asection *id_sec;
30667bf3
AM
2828
2829 r_type = ELF32_R_TYPE (irela->r_info);
2830 r_indx = ELF32_R_SYM (irela->r_info);
2831
2832 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2833 {
2834 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2835 error_ret_free_internal:
2836 if (elf_section_data (section)->relocs == NULL)
2837 free (internal_relocs);
2838 goto error_ret_free_local;
30667bf3
AM
2839 }
2840
2841 /* Only look for stubs on call instructions. */
2842 if (r_type != (unsigned int) R_PARISC_PCREL12F
2843 && r_type != (unsigned int) R_PARISC_PCREL17F
2844 && r_type != (unsigned int) R_PARISC_PCREL22F)
2845 continue;
2846
2847 /* Now determine the call target, its name, value,
2848 section. */
2849 sym_sec = NULL;
2850 sym_value = 0;
f6a8b8c7 2851 destination = -1;
875c0872 2852 hh = NULL;
30667bf3
AM
2853 if (r_indx < symtab_hdr->sh_info)
2854 {
2855 /* It's a local symbol. */
2856 Elf_Internal_Sym *sym;
2857 Elf_Internal_Shdr *hdr;
4fbb74a6 2858 unsigned int shndx;
30667bf3
AM
2859
2860 sym = local_syms + r_indx;
30667bf3
AM
2861 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2862 sym_value = sym->st_value;
4fbb74a6
AM
2863 shndx = sym->st_shndx;
2864 if (shndx < elf_numsections (input_bfd))
2865 {
2866 hdr = elf_elfsections (input_bfd)[shndx];
2867 sym_sec = hdr->bfd_section;
2868 destination = (sym_value + irela->r_addend
2869 + sym_sec->output_offset
2870 + sym_sec->output_section->vma);
2871 }
30667bf3
AM
2872 }
2873 else
2874 {
2875 /* It's an external symbol. */
2876 int e_indx;
2877
2878 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2879 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2880
a63e02c7
DA
2881 while (hh->eh.root.type == bfd_link_hash_indirect
2882 || hh->eh.root.type == bfd_link_hash_warning)
2883 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2884
a63e02c7
DA
2885 if (hh->eh.root.type == bfd_link_hash_defined
2886 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2887 {
a63e02c7
DA
2888 sym_sec = hh->eh.root.u.def.section;
2889 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2890 if (sym_sec->output_section != NULL)
2891 destination = (sym_value + irela->r_addend
2892 + sym_sec->output_offset
2893 + sym_sec->output_section->vma);
2894 }
a63e02c7 2895 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 2896 {
0e1862bb 2897 if (! bfd_link_pic (info))
c432ba1a
AM
2898 continue;
2899 }
a63e02c7 2900 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2901 {
59c2e50f 2902 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2903 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2904 == STV_DEFAULT)
a63e02c7 2905 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
2906 continue;
2907 }
30667bf3
AM
2908 else
2909 {
2910 bfd_set_error (bfd_error_bad_value);
2911 goto error_ret_free_internal;
2912 }
2913 }
2914
2915 /* Determine what (if any) linker stub is needed. */
875c0872 2916 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 2917 destination, info);
30667bf3
AM
2918 if (stub_type == hppa_stub_none)
2919 continue;
2920
25f72752 2921 /* Support for grouping stub sections. */
83c81bfe 2922 id_sec = htab->stub_group[section->id].link_sec;
25f72752 2923
30667bf3 2924 /* Get the name of this stub. */
875c0872 2925 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
2926 if (!stub_name)
2927 goto error_ret_free_internal;
2928
a63e02c7 2929 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2930 stub_name,
b34976b6 2931 FALSE, FALSE);
875c0872 2932 if (hsh != NULL)
30667bf3
AM
2933 {
2934 /* The proper stub has already been created. */
2935 free (stub_name);
2936 continue;
2937 }
2938
875c0872
DA
2939 hsh = hppa_add_stub (stub_name, section, htab);
2940 if (hsh == NULL)
30667bf3
AM
2941 {
2942 free (stub_name);
1e2f5b6e 2943 goto error_ret_free_internal;
30667bf3
AM
2944 }
2945
875c0872
DA
2946 hsh->target_value = sym_value;
2947 hsh->target_section = sym_sec;
2948 hsh->stub_type = stub_type;
0e1862bb 2949 if (bfd_link_pic (info))
30667bf3
AM
2950 {
2951 if (stub_type == hppa_stub_import)
875c0872 2952 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 2953 else if (stub_type == hppa_stub_long_branch)
875c0872 2954 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 2955 }
a63e02c7 2956 hsh->hh = hh;
b34976b6 2957 stub_changed = TRUE;
30667bf3
AM
2958 }
2959
2960 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
2961 if (elf_section_data (section)->relocs == NULL)
2962 free (internal_relocs);
30667bf3
AM
2963 }
2964 }
2965
2966 if (!stub_changed)
2967 break;
2968
2969 /* OK, we've added some stubs. Find out the new size of the
2970 stub sections. */
83c81bfe 2971 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
2972 stub_sec != NULL;
2973 stub_sec = stub_sec->next)
a464198b
AM
2974 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
2975 stub_sec->size = 0;
74d1c347 2976
a63e02c7 2977 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 2978
30667bf3 2979 /* Ask the linker to do its stuff. */
83c81bfe 2980 (*htab->layout_sections_again) ();
b34976b6 2981 stub_changed = FALSE;
30667bf3
AM
2982 }
2983
6cdc0ccc 2984 free (htab->all_local_syms);
b34976b6 2985 return TRUE;
30667bf3
AM
2986
2987 error_ret_free_local:
b4655ea9 2988 free (htab->all_local_syms);
b34976b6 2989 return FALSE;
30667bf3
AM
2990}
2991
30667bf3
AM
2992/* For a final link, this function is called after we have sized the
2993 stubs to provide a value for __gp. */
2994
b34976b6 2995bfd_boolean
c39a58e6 2996elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 2997{
b4655ea9
AM
2998 struct bfd_link_hash_entry *h;
2999 asection *sec = NULL;
3000 bfd_vma gp_val = 0;
30667bf3 3001
55ef6584 3002 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
30667bf3 3003
df8634e3 3004 if (h != NULL
b4655ea9
AM
3005 && (h->type == bfd_link_hash_defined
3006 || h->type == bfd_link_hash_defweak))
30667bf3 3007 {
b4655ea9
AM
3008 gp_val = h->u.def.value;
3009 sec = h->u.def.section;
30667bf3
AM
3010 }
3011 else
3012 {
0eddce27
AM
3013 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3014 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3015
74d1c347
AM
3016 /* Choose to point our LTP at, in this order, one of .plt, .got,
3017 or .data, if these sections exist. In the case of choosing
3018 .plt try to make the LTP ideal for addressing anywhere in the
3019 .plt or .got with a 14 bit signed offset. Typically, the end
3020 of the .plt is the start of the .got, so choose .plt + 0x2000
3021 if either the .plt or .got is larger than 0x2000. If both
3022 the .plt and .got are smaller than 0x2000, choose the end of
3023 the .plt section. */
225247f0
JT
3024 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3025 ? NULL : splt;
74d1c347 3026 if (sec != NULL)
30667bf3 3027 {
eea6121a
AM
3028 gp_val = sec->size;
3029 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3030 {
3031 gp_val = 0x2000;
3032 }
3033 }
3034 else
3035 {
b4655ea9 3036 sec = sgot;
74d1c347
AM
3037 if (sec != NULL)
3038 {
225247f0
JT
3039 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3040 {
07d6d2b8 3041 /* We know we don't have a .plt. If .got is large,
225247f0 3042 offset our LTP. */
07d6d2b8 3043 if (sec->size > 0x2000)
225247f0
JT
3044 gp_val = 0x2000;
3045 }
74d1c347
AM
3046 }
3047 else
3048 {
3049 /* No .plt or .got. Who cares what the LTP is? */
3050 sec = bfd_get_section_by_name (abfd, ".data");
3051 }
30667bf3 3052 }
df8634e3
AM
3053
3054 if (h != NULL)
3055 {
b4655ea9
AM
3056 h->type = bfd_link_hash_defined;
3057 h->u.def.value = gp_val;
df8634e3 3058 if (sec != NULL)
b4655ea9 3059 h->u.def.section = sec;
df8634e3 3060 else
b4655ea9 3061 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3062 }
30667bf3
AM
3063 }
3064
55ef6584
AM
3065 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3066 {
3067 if (sec != NULL && sec->output_section != NULL)
3068 gp_val += sec->output_section->vma + sec->output_offset;
74d1c347 3069
55ef6584
AM
3070 elf_gp (abfd) = gp_val;
3071 }
b34976b6 3072 return TRUE;
30667bf3
AM
3073}
3074
30667bf3
AM
3075/* Build all the stubs associated with the current output file. The
3076 stubs are kept in a hash table attached to the main linker hash
3077 table. We also set up the .plt entries for statically linked PIC
3078 functions here. This function is called via hppaelf_finish in the
3079 linker. */
3080
b34976b6 3081bfd_boolean
c39a58e6 3082elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3083{
3084 asection *stub_sec;
3085 struct bfd_hash_table *table;
83c81bfe 3086 struct elf32_hppa_link_hash_table *htab;
30667bf3 3087
83c81bfe 3088 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3089 if (htab == NULL)
3090 return FALSE;
30667bf3 3091
83c81bfe 3092 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3093 stub_sec != NULL;
3094 stub_sec = stub_sec->next)
a464198b
AM
3095 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3096 && stub_sec->size != 0)
3097 {
3098 /* Allocate memory to hold the linker stubs. */
3099 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3100 if (stub_sec->contents == NULL)
3101 return FALSE;
3102 stub_sec->size = 0;
3103 }
30667bf3
AM
3104
3105 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3106 table = &htab->bstab;
30667bf3
AM
3107 bfd_hash_traverse (table, hppa_build_one_stub, info);
3108
b34976b6 3109 return TRUE;
30667bf3
AM
3110}
3111
9b52905e 3112/* Return the base vma address which should be subtracted from the real
68ffbac6 3113 address when resolving a dtpoff relocation.
9b52905e
NC
3114 This is PT_TLS segment p_vaddr. */
3115
3116static bfd_vma
3117dtpoff_base (struct bfd_link_info *info)
3118{
3119 /* If tls_sec is NULL, we should have signalled an error already. */
3120 if (elf_hash_table (info)->tls_sec == NULL)
3121 return 0;
3122 return elf_hash_table (info)->tls_sec->vma;
3123}
3124
3125/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3126
3127static bfd_vma
3128tpoff (struct bfd_link_info *info, bfd_vma address)
3129{
3130 struct elf_link_hash_table *htab = elf_hash_table (info);
3131
3132 /* If tls_sec is NULL, we should have signalled an error already. */
3133 if (htab->tls_sec == NULL)
3134 return 0;
68ffbac6 3135 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3136 tcbhead structure which has 2 pointer fields. */
68ffbac6 3137 return (address - htab->tls_sec->vma
9b52905e
NC
3138 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3139}
3140
c46b7515
AM
3141/* Perform a final link. */
3142
b34976b6 3143static bfd_boolean
c39a58e6 3144elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3145{
6d4b2867
JDA
3146 struct stat buf;
3147
4dc86686 3148 /* Invoke the regular ELF linker to do all the work. */
c152c796 3149 if (!bfd_elf_final_link (abfd, info))
b34976b6 3150 return FALSE;
c46b7515
AM
3151
3152 /* If we're producing a final executable, sort the contents of the
985142a4 3153 unwind section. */
0e1862bb 3154 if (bfd_link_relocatable (info))
d9f40817
DA
3155 return TRUE;
3156
6d4b2867
JDA
3157 /* Do not attempt to sort non-regular files. This is here
3158 especially for configure scripts and kernel builds which run
3159 tests with "ld [...] -o /dev/null". */
3160 if (stat (abfd->filename, &buf) != 0
3161 || !S_ISREG(buf.st_mode))
3162 return TRUE;
3163
46fe4e66 3164 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3165}
3166
3167/* Record the lowest address for the data and text segments. */
3168
3169static void
2ea37f1c 3170hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3171{
83c81bfe 3172 struct elf32_hppa_link_hash_table *htab;
c46b7515 3173
875c0872 3174 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3175 if (htab == NULL)
3176 return;
c46b7515
AM
3177
3178 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3179 {
2ea37f1c
NC
3180 bfd_vma value;
3181 Elf_Internal_Phdr *p;
3182
3183 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3184 BFD_ASSERT (p != NULL);
3185 value = p->p_vaddr;
c46b7515
AM
3186
3187 if ((section->flags & SEC_READONLY) != 0)
3188 {
83c81bfe
AM
3189 if (value < htab->text_segment_base)
3190 htab->text_segment_base = value;
c46b7515
AM
3191 }
3192 else
3193 {
83c81bfe
AM
3194 if (value < htab->data_segment_base)
3195 htab->data_segment_base = value;
c46b7515
AM
3196 }
3197 }
3198}
3199
30667bf3
AM
3200/* Perform a relocation as part of a final link. */
3201
3202static bfd_reloc_status_type
c39a58e6
AM
3203final_link_relocate (asection *input_section,
3204 bfd_byte *contents,
875c0872 3205 const Elf_Internal_Rela *rela,
c39a58e6
AM
3206 bfd_vma value,
3207 struct elf32_hppa_link_hash_table *htab,
3208 asection *sym_sec,
875c0872 3209 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3210 struct bfd_link_info *info)
30667bf3
AM
3211{
3212 int insn;
875c0872 3213 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3214 unsigned int orig_r_type = r_type;
30667bf3
AM
3215 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3216 int r_format = howto->bitsize;
3217 enum hppa_reloc_field_selector_type_alt r_field;
3218 bfd *input_bfd = input_section->owner;
875c0872 3219 bfd_vma offset = rela->r_offset;
30667bf3
AM
3220 bfd_vma max_branch_offset = 0;
3221 bfd_byte *hit_data = contents + offset;
875c0872 3222 bfd_signed_vma addend = rela->r_addend;
30667bf3 3223 bfd_vma location;
875c0872 3224 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3225 int val;
30667bf3
AM
3226
3227 if (r_type == R_PARISC_NONE)
3228 return bfd_reloc_ok;
3229
3230 insn = bfd_get_32 (input_bfd, hit_data);
3231
3232 /* Find out where we are and where we're going. */
3233 location = (offset +
3234 input_section->output_offset +
3235 input_section->output_section->vma);
3236
a252afa4
DA
3237 /* If we are not building a shared library, convert DLTIND relocs to
3238 DPREL relocs. */
0e1862bb 3239 if (!bfd_link_pic (info))
a252afa4
DA
3240 {
3241 switch (r_type)
4fc8051d
AM
3242 {
3243 case R_PARISC_DLTIND21L:
143bb599
DA
3244 case R_PARISC_TLS_GD21L:
3245 case R_PARISC_TLS_LDM21L:
3246 case R_PARISC_TLS_IE21L:
4fc8051d 3247 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3248 break;
3249
4fc8051d 3250 case R_PARISC_DLTIND14R:
143bb599
DA
3251 case R_PARISC_TLS_GD14R:
3252 case R_PARISC_TLS_LDM14R:
3253 case R_PARISC_TLS_IE14R:
4fc8051d 3254 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3255 break;
3256
4fc8051d
AM
3257 case R_PARISC_DLTIND14F:
3258 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3259 break;
3260 }
3261 }
3262
30667bf3
AM
3263 switch (r_type)
3264 {
3265 case R_PARISC_PCREL12F:
3266 case R_PARISC_PCREL17F:
3267 case R_PARISC_PCREL22F:
067fa4a6
AM
3268 /* If this call should go via the plt, find the import stub in
3269 the stub hash. */
30667bf3
AM
3270 if (sym_sec == NULL
3271 || sym_sec->output_section == NULL
875c0872 3272 || (hh != NULL
a63e02c7
DA
3273 && hh->eh.plt.offset != (bfd_vma) -1
3274 && hh->eh.dynindx != -1
875c0872 3275 && !hh->plabel
0e1862bb 3276 && (bfd_link_pic (info)
a63e02c7
DA
3277 || !hh->eh.def_regular
3278 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3279 {
875c0872
DA
3280 hsh = hppa_get_stub_entry (input_section, sym_sec,
3281 hh, rela, htab);
3282 if (hsh != NULL)
30667bf3 3283 {
875c0872
DA
3284 value = (hsh->stub_offset
3285 + hsh->stub_sec->output_offset
3286 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3287 addend = 0;
3288 }
875c0872 3289 else if (sym_sec == NULL && hh != NULL
a63e02c7 3290 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3291 {
db20fd76
AM
3292 /* It's OK if undefined weak. Calls to undefined weak
3293 symbols behave as if the "called" function
3294 immediately returns. We can thus call to a weak
3295 function without first checking whether the function
3296 is defined. */
30667bf3 3297 value = location;
db20fd76 3298 addend = 8;
30667bf3
AM
3299 }
3300 else
f09ebc7d 3301 return bfd_reloc_undefined;
30667bf3
AM
3302 }
3303 /* Fall thru. */
3304
3305 case R_PARISC_PCREL21L:
3306 case R_PARISC_PCREL17C:
3307 case R_PARISC_PCREL17R:
3308 case R_PARISC_PCREL14R:
3309 case R_PARISC_PCREL14F:
36751eee 3310 case R_PARISC_PCREL32:
30667bf3
AM
3311 /* Make it a pc relative offset. */
3312 value -= location;
3313 addend -= 8;
3314 break;
3315
3316 case R_PARISC_DPREL21L:
3317 case R_PARISC_DPREL14R:
3318 case R_PARISC_DPREL14F:
a252afa4
DA
3319 /* Convert instructions that use the linkage table pointer (r19) to
3320 instructions that use the global data pointer (dp). This is the
3321 most efficient way of using PIC code in an incomplete executable,
3322 but the user must follow the standard runtime conventions for
3323 accessing data for this to work. */
143bb599 3324 if (orig_r_type != r_type)
a252afa4 3325 {
143bb599
DA
3326 if (r_type == R_PARISC_DPREL21L)
3327 {
3328 /* GCC sometimes uses a register other than r19 for the
3329 operation, so we must convert any addil instruction
3330 that uses this relocation. */
3331 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3332 insn = ADDIL_DP;
3333 else
3334 /* We must have a ldil instruction. It's too hard to find
3335 and convert the associated add instruction, so issue an
3336 error. */
4eca0228 3337 _bfd_error_handler
695344c0 3338 /* xgettext:c-format */
2dcf00ce
AM
3339 (_("%pB(%pA+%#" PRIx64 "): %s fixup for insn %#x "
3340 "is not supported in a non-shared link"),
143bb599
DA
3341 input_bfd,
3342 input_section,
2dcf00ce 3343 (uint64_t) offset,
143bb599
DA
3344 howto->name,
3345 insn);
3346 }
3347 else if (r_type == R_PARISC_DPREL14F)
3348 {
3349 /* This must be a format 1 load/store. Change the base
3350 register to dp. */
3351 insn = (insn & 0xfc1ffff) | (27 << 21);
3352 }
a252afa4
DA
3353 }
3354
143bb599
DA
3355 /* For all the DP relative relocations, we need to examine the symbol's
3356 section. If it has no section or if it's a code section, then
3357 "data pointer relative" makes no sense. In that case we don't
3358 adjust the "value", and for 21 bit addil instructions, we change the
3359 source addend register from %dp to %r0. This situation commonly
3360 arises for undefined weak symbols and when a variable's "constness"
3361 is declared differently from the way the variable is defined. For
3362 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3363 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3364 {
3365 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3366 == (((int) OP_ADDIL << 26) | (27 << 21)))
3367 {
3368 insn &= ~ (0x1f << 21);
30667bf3
AM
3369 }
3370 /* Now try to make things easy for the dynamic linker. */
3371
3372 break;
3373 }
74d1c347 3374 /* Fall thru. */
30667bf3
AM
3375
3376 case R_PARISC_DLTIND21L:
3377 case R_PARISC_DLTIND14R:
3378 case R_PARISC_DLTIND14F:
143bb599
DA
3379 case R_PARISC_TLS_GD21L:
3380 case R_PARISC_TLS_LDM21L:
3381 case R_PARISC_TLS_IE21L:
9b52905e 3382 case R_PARISC_TLS_GD14R:
9b52905e 3383 case R_PARISC_TLS_LDM14R:
9b52905e 3384 case R_PARISC_TLS_IE14R:
30667bf3
AM
3385 value -= elf_gp (input_section->output_section->owner);
3386 break;
3387
c46b7515
AM
3388 case R_PARISC_SEGREL32:
3389 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3390 value -= htab->text_segment_base;
c46b7515 3391 else
83c81bfe 3392 value -= htab->data_segment_base;
c46b7515
AM
3393 break;
3394
30667bf3
AM
3395 default:
3396 break;
3397 }
3398
3399 switch (r_type)
3400 {
3401 case R_PARISC_DIR32:
47d89dba 3402 case R_PARISC_DIR14F:
30667bf3
AM
3403 case R_PARISC_DIR17F:
3404 case R_PARISC_PCREL17C:
3405 case R_PARISC_PCREL14F:
36751eee 3406 case R_PARISC_PCREL32:
30667bf3
AM
3407 case R_PARISC_DPREL14F:
3408 case R_PARISC_PLABEL32:
3409 case R_PARISC_DLTIND14F:
3410 case R_PARISC_SEGBASE:
3411 case R_PARISC_SEGREL32:
9b52905e
NC
3412 case R_PARISC_TLS_DTPMOD32:
3413 case R_PARISC_TLS_DTPOFF32:
3414 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3415 r_field = e_fsel;
3416 break;
3417
1bf42538 3418 case R_PARISC_DLTIND21L:
30667bf3 3419 case R_PARISC_PCREL21L:
30667bf3 3420 case R_PARISC_PLABEL21L:
1bf42538
JL
3421 r_field = e_lsel;
3422 break;
3423
3424 case R_PARISC_DIR21L:
3425 case R_PARISC_DPREL21L:
9b52905e
NC
3426 case R_PARISC_TLS_GD21L:
3427 case R_PARISC_TLS_LDM21L:
3428 case R_PARISC_TLS_LDO21L:
3429 case R_PARISC_TLS_IE21L:
3430 case R_PARISC_TLS_LE21L:
30667bf3
AM
3431 r_field = e_lrsel;
3432 break;
3433
30667bf3 3434 case R_PARISC_PCREL17R:
30667bf3 3435 case R_PARISC_PCREL14R:
30667bf3
AM
3436 case R_PARISC_PLABEL14R:
3437 case R_PARISC_DLTIND14R:
1bf42538
JL
3438 r_field = e_rsel;
3439 break;
3440
3441 case R_PARISC_DIR17R:
3442 case R_PARISC_DIR14R:
3443 case R_PARISC_DPREL14R:
9b52905e
NC
3444 case R_PARISC_TLS_GD14R:
3445 case R_PARISC_TLS_LDM14R:
3446 case R_PARISC_TLS_LDO14R:
3447 case R_PARISC_TLS_IE14R:
3448 case R_PARISC_TLS_LE14R:
30667bf3
AM
3449 r_field = e_rrsel;
3450 break;
3451
3452 case R_PARISC_PCREL12F:
3453 case R_PARISC_PCREL17F:
3454 case R_PARISC_PCREL22F:
3455 r_field = e_fsel;
3456
3457 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3458 {
3459 max_branch_offset = (1 << (17-1)) << 2;
3460 }
3461 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3462 {
3463 max_branch_offset = (1 << (12-1)) << 2;
3464 }
3465 else
3466 {
3467 max_branch_offset = (1 << (22-1)) << 2;
3468 }
3469
3470 /* sym_sec is NULL on undefined weak syms or when shared on
3471 undefined syms. We've already checked for a stub for the
3472 shared undefined case. */
3473 if (sym_sec == NULL)
3474 break;
3475
3476 /* If the branch is out of reach, then redirect the
3477 call to the local stub for this function. */
3478 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3479 {
875c0872
DA
3480 hsh = hppa_get_stub_entry (input_section, sym_sec,
3481 hh, rela, htab);
3482 if (hsh == NULL)
f09ebc7d 3483 return bfd_reloc_undefined;
30667bf3
AM
3484
3485 /* Munge up the value and addend so that we call the stub
3486 rather than the procedure directly. */
875c0872
DA
3487 value = (hsh->stub_offset
3488 + hsh->stub_sec->output_offset
3489 + hsh->stub_sec->output_section->vma
30667bf3
AM
3490 - location);
3491 addend = -8;
3492 }
3493 break;
3494
3495 /* Something we don't know how to handle. */
3496 default:
3497 return bfd_reloc_notsupported;
3498 }
3499
3500 /* Make sure we can reach the stub. */
3501 if (max_branch_offset != 0
3502 && value + addend + max_branch_offset >= 2*max_branch_offset)
3503 {
4eca0228 3504 _bfd_error_handler
695344c0 3505 /* xgettext:c-format */
2dcf00ce
AM
3506 (_("%pB(%pA+%#" PRIx64 "): cannot reach %s, "
3507 "recompile with -ffunction-sections"),
d003868e
AM
3508 input_bfd,
3509 input_section,
2dcf00ce 3510 (uint64_t) offset,
a63e02c7 3511 hsh->bh_root.string);
ce757d15 3512 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3513 return bfd_reloc_notsupported;
3514 }
3515
3516 val = hppa_field_adjust (value, addend, r_field);
3517
3518 switch (r_type)
3519 {
3520 case R_PARISC_PCREL12F:
3521 case R_PARISC_PCREL17C:
3522 case R_PARISC_PCREL17F:
3523 case R_PARISC_PCREL17R:
3524 case R_PARISC_PCREL22F:
3525 case R_PARISC_DIR17F:
3526 case R_PARISC_DIR17R:
3527 /* This is a branch. Divide the offset by four.
3528 Note that we need to decide whether it's a branch or
3529 otherwise by inspecting the reloc. Inspecting insn won't
3530 work as insn might be from a .word directive. */
3531 val >>= 2;
3532 break;
3533
3534 default:
3535 break;
3536 }
3537
3538 insn = hppa_rebuild_insn (insn, val, r_format);
3539
3540 /* Update the instruction word. */
74d1c347 3541 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3542 return bfd_reloc_ok;
3543}
3544
30667bf3
AM
3545/* Relocate an HPPA ELF section. */
3546
b34976b6 3547static bfd_boolean
c39a58e6
AM
3548elf32_hppa_relocate_section (bfd *output_bfd,
3549 struct bfd_link_info *info,
3550 bfd *input_bfd,
3551 asection *input_section,
3552 bfd_byte *contents,
3553 Elf_Internal_Rela *relocs,
3554 Elf_Internal_Sym *local_syms,
3555 asection **local_sections)
30667bf3 3556{
30667bf3 3557 bfd_vma *local_got_offsets;
83c81bfe 3558 struct elf32_hppa_link_hash_table *htab;
30667bf3 3559 Elf_Internal_Shdr *symtab_hdr;
875c0872 3560 Elf_Internal_Rela *rela;
30667bf3 3561 Elf_Internal_Rela *relend;
30667bf3
AM
3562
3563 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3564
83c81bfe 3565 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3566 if (htab == NULL)
3567 return FALSE;
3568
74d1c347 3569 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3570
875c0872 3571 rela = relocs;
30667bf3 3572 relend = relocs + input_section->reloc_count;
875c0872 3573 for (; rela < relend; rela++)
30667bf3
AM
3574 {
3575 unsigned int r_type;
3576 reloc_howto_type *howto;
3577 unsigned int r_symndx;
875c0872 3578 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3579 Elf_Internal_Sym *sym;
3580 asection *sym_sec;
3581 bfd_vma relocation;
875c0872 3582 bfd_reloc_status_type rstatus;
30667bf3 3583 const char *sym_name;
b34976b6
AM
3584 bfd_boolean plabel;
3585 bfd_boolean warned_undef;
30667bf3 3586
875c0872 3587 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3588 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3589 {
3590 bfd_set_error (bfd_error_bad_value);
b34976b6 3591 return FALSE;
30667bf3
AM
3592 }
3593 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3594 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3595 continue;
3596
875c0872
DA
3597 r_symndx = ELF32_R_SYM (rela->r_info);
3598 hh = NULL;
30667bf3
AM
3599 sym = NULL;
3600 sym_sec = NULL;
b34976b6 3601 warned_undef = FALSE;
30667bf3
AM
3602 if (r_symndx < symtab_hdr->sh_info)
3603 {
3604 /* This is a local symbol, h defaults to NULL. */
3605 sym = local_syms + r_symndx;
3606 sym_sec = local_sections[r_symndx];
875c0872 3607 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3608 }
3609 else
3610 {
875c0872 3611 struct elf_link_hash_entry *eh;
62d887d4 3612 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3613 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3614
875c0872 3615 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3616 r_symndx, symtab_hdr, sym_hashes,
875c0872 3617 eh, sym_sec, relocation,
62d887d4
L
3618 unresolved_reloc, warned_undef,
3619 ignored);
560e09e9 3620
0e1862bb 3621 if (!bfd_link_relocatable (info)
ab96bf03 3622 && relocation == 0
875c0872
DA
3623 && eh->root.type != bfd_link_hash_defined
3624 && eh->root.type != bfd_link_hash_defweak
3625 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3626 {
59c2e50f 3627 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3628 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3629 && eh->type == STT_PARISC_MILLI)
560e09e9 3630 {
1a72702b
AM
3631 (*info->callbacks->undefined_symbol)
3632 (info, eh_name (eh), input_bfd,
3633 input_section, rela->r_offset, FALSE);
560e09e9
NC
3634 warned_undef = TRUE;
3635 }
30667bf3 3636 }
875c0872 3637 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3638 }
3639
dbaa2011 3640 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3641 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3642 rela, 1, relend,
3643 elf_hppa_howto_table + r_type, 0,
e4067dbb 3644 contents);
ab96bf03 3645
0e1862bb 3646 if (bfd_link_relocatable (info))
ab96bf03
AM
3647 continue;
3648
30667bf3 3649 /* Do any required modifications to the relocation value, and
25f72752
AM
3650 determine what types of dynamic info we need to output, if
3651 any. */
74d1c347 3652 plabel = 0;
30667bf3
AM
3653 switch (r_type)
3654 {
3655 case R_PARISC_DLTIND14F:
3656 case R_PARISC_DLTIND14R:
3657 case R_PARISC_DLTIND21L:
ce757d15
AM
3658 {
3659 bfd_vma off;
d336fa6d
AM
3660 bfd_boolean do_got = FALSE;
3661 bfd_boolean reloc = bfd_link_pic (info);
ce757d15
AM
3662
3663 /* Relocation is to the entry for this symbol in the
3664 global offset table. */
875c0872 3665 if (hh != NULL)
ce757d15 3666 {
b34976b6 3667 bfd_boolean dyn;
ce757d15 3668
a63e02c7
DA
3669 off = hh->eh.got.offset;
3670 dyn = htab->etab.dynamic_sections_created;
d336fa6d
AM
3671 reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)
3672 && (reloc
3673 || (hh->eh.dynindx != -1
3674 && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))));
3675 if (!reloc
3676 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3677 bfd_link_pic (info),
3678 &hh->eh))
ce757d15
AM
3679 {
3680 /* If we aren't going to call finish_dynamic_symbol,
3681 then we need to handle initialisation of the .got
3682 entry and create needed relocs here. Since the
3683 offset must always be a multiple of 4, we use the
3684 least significant bit to record whether we have
3685 initialised it already. */
3686 if ((off & 1) != 0)
3687 off &= ~1;
3688 else
3689 {
a63e02c7 3690 hh->eh.got.offset |= 1;
d336fa6d 3691 do_got = TRUE;
ce757d15
AM
3692 }
3693 }
3694 }
3695 else
3696 {
3697 /* Local symbol case. */
3698 if (local_got_offsets == NULL)
3699 abort ();
3700
3701 off = local_got_offsets[r_symndx];
3702
3703 /* The offset must always be a multiple of 4. We use
3704 the least significant bit to record whether we have
3705 already generated the necessary reloc. */
3706 if ((off & 1) != 0)
3707 off &= ~1;
3708 else
3709 {
3710 local_got_offsets[r_symndx] |= 1;
d336fa6d 3711 do_got = TRUE;
ce757d15
AM
3712 }
3713 }
68fb2e56 3714
ce757d15
AM
3715 if (do_got)
3716 {
d336fa6d 3717 if (reloc)
ce757d15
AM
3718 {
3719 /* Output a dynamic relocation for this GOT entry.
3720 In this case it is relative to the base of the
3721 object because the symbol index is zero. */
3722 Elf_Internal_Rela outrel;
947216bf 3723 bfd_byte *loc;
ce558b89 3724 asection *sec = htab->etab.srelgot;
ce757d15
AM
3725
3726 outrel.r_offset = (off
ce558b89
AM
3727 + htab->etab.sgot->output_offset
3728 + htab->etab.sgot->output_section->vma);
ce757d15
AM
3729 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3730 outrel.r_addend = relocation;
875c0872
DA
3731 loc = sec->contents;
3732 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3733 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3734 }
3735 else
30667bf3 3736 bfd_put_32 (output_bfd, relocation,
ce558b89 3737 htab->etab.sgot->contents + off);
ce757d15 3738 }
30667bf3 3739
ce757d15
AM
3740 if (off >= (bfd_vma) -2)
3741 abort ();
30667bf3 3742
ce757d15
AM
3743 /* Add the base of the GOT to the relocation value. */
3744 relocation = (off
ce558b89
AM
3745 + htab->etab.sgot->output_offset
3746 + htab->etab.sgot->output_section->vma);
ce757d15 3747 }
30667bf3 3748 break;
252b5132 3749
c46b7515
AM
3750 case R_PARISC_SEGREL32:
3751 /* If this is the first SEGREL relocation, then initialize
3752 the segment base values. */
83c81bfe
AM
3753 if (htab->text_segment_base == (bfd_vma) -1)
3754 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3755 break;
3756
30667bf3
AM
3757 case R_PARISC_PLABEL14R:
3758 case R_PARISC_PLABEL21L:
3759 case R_PARISC_PLABEL32:
a63e02c7 3760 if (htab->etab.dynamic_sections_created)
252b5132 3761 {
ce757d15 3762 bfd_vma off;
b34976b6 3763 bfd_boolean do_plt = 0;
74d1c347
AM
3764 /* If we have a global symbol with a PLT slot, then
3765 redirect this relocation to it. */
875c0872 3766 if (hh != NULL)
74d1c347 3767 {
a63e02c7 3768 off = hh->eh.plt.offset;
0e1862bb
L
3769 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3770 bfd_link_pic (info),
a63e02c7 3771 &hh->eh))
8dea1268 3772 {
4a7e5234 3773 /* In a non-shared link, adjust_dynamic_symbol
8dea1268 3774 isn't called for symbols forced local. We
dc810e39 3775 need to write out the plt entry here. */
8dea1268
AM
3776 if ((off & 1) != 0)
3777 off &= ~1;
3778 else
3779 {
a63e02c7 3780 hh->eh.plt.offset |= 1;
ce757d15 3781 do_plt = 1;
8dea1268
AM
3782 }
3783 }
74d1c347
AM
3784 }
3785 else
3786 {
68fb2e56
AM
3787 bfd_vma *local_plt_offsets;
3788
3789 if (local_got_offsets == NULL)
3790 abort ();
74d1c347 3791
68fb2e56
AM
3792 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3793 off = local_plt_offsets[r_symndx];
74d1c347
AM
3794
3795 /* As for the local .got entry case, we use the last
3796 bit to record whether we've already initialised
3797 this local .plt entry. */
3798 if ((off & 1) != 0)
3799 off &= ~1;
ce757d15
AM
3800 else
3801 {
3802 local_plt_offsets[r_symndx] |= 1;
3803 do_plt = 1;
3804 }
3805 }
3806
3807 if (do_plt)
3808 {
0e1862bb 3809 if (bfd_link_pic (info))
ce757d15
AM
3810 {
3811 /* Output a dynamic IPLT relocation for this
3812 PLT entry. */
3813 Elf_Internal_Rela outrel;
947216bf 3814 bfd_byte *loc;
ce558b89 3815 asection *s = htab->etab.srelplt;
ce757d15
AM
3816
3817 outrel.r_offset = (off
ce558b89
AM
3818 + htab->etab.splt->output_offset
3819 + htab->etab.splt->output_section->vma);
ce757d15
AM
3820 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3821 outrel.r_addend = relocation;
947216bf
AM
3822 loc = s->contents;
3823 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3824 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3825 }
74d1c347
AM
3826 else
3827 {
3828 bfd_put_32 (output_bfd,
3829 relocation,
ce558b89 3830 htab->etab.splt->contents + off);
74d1c347 3831 bfd_put_32 (output_bfd,
ce558b89
AM
3832 elf_gp (htab->etab.splt->output_section->owner),
3833 htab->etab.splt->contents + off + 4);
74d1c347
AM
3834 }
3835 }
3836
68fb2e56 3837 if (off >= (bfd_vma) -2)
49e9d0d3 3838 abort ();
74d1c347
AM
3839
3840 /* PLABELs contain function pointers. Relocation is to
3841 the entry for the function in the .plt. The magic +2
3842 offset signals to $$dyncall that the function pointer
3843 is in the .plt and thus has a gp pointer too.
3844 Exception: Undefined PLABELs should have a value of
3845 zero. */
875c0872 3846 if (hh == NULL
a63e02c7
DA
3847 || (hh->eh.root.type != bfd_link_hash_undefweak
3848 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3849 {
3850 relocation = (off
ce558b89
AM
3851 + htab->etab.splt->output_offset
3852 + htab->etab.splt->output_section->vma
74d1c347
AM
3853 + 2);
3854 }
3855 plabel = 1;
30667bf3 3856 }
1a0670f3 3857 /* Fall through. */
30667bf3
AM
3858
3859 case R_PARISC_DIR17F:
3860 case R_PARISC_DIR17R:
47d89dba 3861 case R_PARISC_DIR14F:
30667bf3
AM
3862 case R_PARISC_DIR14R:
3863 case R_PARISC_DIR21L:
3864 case R_PARISC_DPREL14F:
3865 case R_PARISC_DPREL14R:
3866 case R_PARISC_DPREL21L:
3867 case R_PARISC_DIR32:
b1e24c02 3868 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3869 break;
3870
287c7eaf
AM
3871 if (bfd_link_pic (info)
3872 ? ((hh == NULL
3873 || hh->dyn_relocs != NULL)
3874 && ((hh != NULL && pc_dynrelocs (hh))
3875 || IS_ABSOLUTE_RELOC (r_type)))
3876 : (hh != NULL
3877 && hh->dyn_relocs != NULL))
30667bf3
AM
3878 {
3879 Elf_Internal_Rela outrel;
b34976b6 3880 bfd_boolean skip;
98ceb8ce 3881 asection *sreloc;
947216bf 3882 bfd_byte *loc;
252b5132 3883
30667bf3
AM
3884 /* When generating a shared object, these relocations
3885 are copied into the output file to be resolved at run
3886 time. */
252b5132 3887
875c0872 3888 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3889 outrel.r_offset =
3890 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3891 rela->r_offset);
0bb2d96a
JJ
3892 skip = (outrel.r_offset == (bfd_vma) -1
3893 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3894 outrel.r_offset += (input_section->output_offset
3895 + input_section->output_section->vma);
68ffbac6 3896
30667bf3 3897 if (skip)
252b5132 3898 {
30667bf3 3899 memset (&outrel, 0, sizeof (outrel));
252b5132 3900 }
875c0872 3901 else if (hh != NULL
a63e02c7 3902 && hh->eh.dynindx != -1
74d1c347 3903 && (plabel
446f2863 3904 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 3905 || !bfd_link_pic (info)
a496fbc8 3906 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 3907 || !hh->eh.def_regular))
252b5132 3908 {
a63e02c7 3909 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
3910 }
3911 else /* It's a local symbol, or one marked to become local. */
3912 {
3913 int indx = 0;
edd21aca 3914
30667bf3
AM
3915 /* Add the absolute offset of the symbol. */
3916 outrel.r_addend += relocation;
edd21aca 3917
74d1c347
AM
3918 /* Global plabels need to be processed by the
3919 dynamic linker so that functions have at most one
3920 fptr. For this reason, we need to differentiate
3921 between global and local plabels, which we do by
3922 providing the function symbol for a global plabel
3923 reloc, and no symbol for local plabels. */
3924 if (! plabel
3925 && sym_sec != NULL
30667bf3
AM
3926 && sym_sec->output_section != NULL
3927 && ! bfd_is_abs_section (sym_sec))
252b5132 3928 {
74541ad4
AM
3929 asection *osec;
3930
3931 osec = sym_sec->output_section;
3932 indx = elf_section_data (osec)->dynindx;
3933 if (indx == 0)
3934 {
3935 osec = htab->etab.text_index_section;
3936 indx = elf_section_data (osec)->dynindx;
3937 }
3938 BFD_ASSERT (indx != 0);
4b71bec0 3939
30667bf3
AM
3940 /* We are turning this relocation into one
3941 against a section symbol, so subtract out the
3942 output section's address but not the offset
3943 of the input section in the output section. */
74541ad4 3944 outrel.r_addend -= osec->vma;
252b5132 3945 }
252b5132 3946
30667bf3
AM
3947 outrel.r_info = ELF32_R_INFO (indx, r_type);
3948 }
98ceb8ce
AM
3949 sreloc = elf_section_data (input_section)->sreloc;
3950 if (sreloc == NULL)
3951 abort ();
3952
947216bf
AM
3953 loc = sreloc->contents;
3954 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 3955 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
3956 }
3957 break;
68ffbac6 3958
9b52905e
NC
3959 case R_PARISC_TLS_LDM21L:
3960 case R_PARISC_TLS_LDM14R:
3961 {
3962 bfd_vma off;
68ffbac6 3963
9b52905e
NC
3964 off = htab->tls_ldm_got.offset;
3965 if (off & 1)
3966 off &= ~1;
3967 else
3968 {
3969 Elf_Internal_Rela outrel;
3970 bfd_byte *loc;
3971
68ffbac6 3972 outrel.r_offset = (off
ce558b89
AM
3973 + htab->etab.sgot->output_section->vma
3974 + htab->etab.sgot->output_offset);
9b52905e
NC
3975 outrel.r_addend = 0;
3976 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
ce558b89
AM
3977 loc = htab->etab.srelgot->contents;
3978 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
9b52905e
NC
3979
3980 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3981 htab->tls_ldm_got.offset |= 1;
3982 }
3983
3984 /* Add the base of the GOT to the relocation value. */
3985 relocation = (off
ce558b89
AM
3986 + htab->etab.sgot->output_offset
3987 + htab->etab.sgot->output_section->vma);
9b52905e
NC
3988
3989 break;
3990 }
3991
3992 case R_PARISC_TLS_LDO21L:
3993 case R_PARISC_TLS_LDO14R:
3994 relocation -= dtpoff_base (info);
3995 break;
3996
3997 case R_PARISC_TLS_GD21L:
3998 case R_PARISC_TLS_GD14R:
3999 case R_PARISC_TLS_IE21L:
4000 case R_PARISC_TLS_IE14R:
4001 {
4002 bfd_vma off;
4003 int indx;
4004 char tls_type;
4005
4006 indx = 0;
4007 if (hh != NULL)
4008 {
2e684e75
AM
4009 if (!htab->etab.dynamic_sections_created
4010 || hh->eh.dynindx == -1
4011 || SYMBOL_REFERENCES_LOCAL (info, &hh->eh)
4012 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))
4013 /* This is actually a static link, or it is a
4014 -Bsymbolic link and the symbol is defined
4015 locally, or the symbol was forced to be local
4016 because of a version file. */
4017 ;
4018 else
4019 indx = hh->eh.dynindx;
9b52905e
NC
4020 off = hh->eh.got.offset;
4021 tls_type = hh->tls_type;
4022 }
4023 else
4024 {
4025 off = local_got_offsets[r_symndx];
4026 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4027 }
4028
4029 if (tls_type == GOT_UNKNOWN)
4030 abort ();
4031
4032 if ((off & 1) != 0)
4033 off &= ~1;
4034 else
4035 {
4036 bfd_boolean need_relocs = FALSE;
4037 Elf_Internal_Rela outrel;
4038 bfd_byte *loc = NULL;
4039 int cur_off = off;
4040
07d6d2b8
AM
4041 /* The GOT entries have not been initialized yet. Do it
4042 now, and emit any relocations. If both an IE GOT and a
4043 GD GOT are necessary, we emit the GD first. */
9b52905e 4044
2e684e75 4045 if (indx != 0
4352556b 4046 || (bfd_link_dll (info)
2e684e75
AM
4047 && (hh == NULL
4048 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))))
9b52905e
NC
4049 {
4050 need_relocs = TRUE;
ce558b89 4051 loc = htab->etab.srelgot->contents;
2e684e75
AM
4052 loc += (htab->etab.srelgot->reloc_count
4053 * sizeof (Elf32_External_Rela));
9b52905e
NC
4054 }
4055
4056 if (tls_type & GOT_TLS_GD)
4057 {
4058 if (need_relocs)
4059 {
2e684e75
AM
4060 outrel.r_offset
4061 = (cur_off
4062 + htab->etab.sgot->output_section->vma
4063 + htab->etab.sgot->output_offset);
4064 outrel.r_info
4065 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32);
9b52905e 4066 outrel.r_addend = 0;
9b52905e 4067 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4068 htab->etab.srelgot->reloc_count++;
9b52905e 4069 loc += sizeof (Elf32_External_Rela);
4352556b
AM
4070 bfd_put_32 (output_bfd, 0,
4071 htab->etab.sgot->contents + cur_off);
4072 }
4073 else
4074 /* If we are not emitting relocations for a
4075 general dynamic reference, then we must be in a
4076 static link or an executable link with the
4077 symbol binding locally. Mark it as belonging
4078 to module 1, the executable. */
4079 bfd_put_32 (output_bfd, 1,
4080 htab->etab.sgot->contents + cur_off);
4081
4082 if (indx != 0)
4083 {
2e684e75
AM
4084 outrel.r_info
4085 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4086 outrel.r_offset += 4;
4087 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4088 htab->etab.srelgot->reloc_count++;
4089 loc += sizeof (Elf32_External_Rela);
2e684e75
AM
4090 bfd_put_32 (output_bfd, 0,
4091 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4092 }
4093 else
4352556b
AM
4094 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4095 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4096 cur_off += 8;
4097 }
4098
4099 if (tls_type & GOT_TLS_IE)
4100 {
2e684e75
AM
4101 if (need_relocs
4102 && !(bfd_link_executable (info)
4103 && SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
9b52905e 4104 {
2e684e75
AM
4105 outrel.r_offset
4106 = (cur_off
4107 + htab->etab.sgot->output_section->vma
4108 + htab->etab.sgot->output_offset);
4109 outrel.r_info = ELF32_R_INFO (indx,
4110 R_PARISC_TLS_TPREL32);
9b52905e
NC
4111 if (indx == 0)
4112 outrel.r_addend = relocation - dtpoff_base (info);
4113 else
4114 outrel.r_addend = 0;
9b52905e 4115 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4116 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4117 loc += sizeof (Elf32_External_Rela);
4118 }
4119 else
4120 bfd_put_32 (output_bfd, tpoff (info, relocation),
ce558b89 4121 htab->etab.sgot->contents + cur_off);
9b52905e
NC
4122 cur_off += 4;
4123 }
4124
4125 if (hh != NULL)
4126 hh->eh.got.offset |= 1;
4127 else
4128 local_got_offsets[r_symndx] |= 1;
4129 }
4130
2e684e75
AM
4131 if ((tls_type & GOT_NORMAL) != 0
4132 && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0)
4133 {
4134 if (hh != NULL)
4135 _bfd_error_handler (_("%s has both normal and TLS relocs"),
4136 hh_name (hh));
4137 else
4138 {
4139 Elf_Internal_Sym *isym
4140 = bfd_sym_from_r_symndx (&htab->sym_cache,
4141 input_bfd, r_symndx);
4142 if (isym == NULL)
4143 return FALSE;
4144 sym_name
4145 = bfd_elf_string_from_elf_section (input_bfd,
4146 symtab_hdr->sh_link,
4147 isym->st_name);
4148 if (sym_name == NULL)
4149 return FALSE;
4150 if (*sym_name == '\0')
4151 sym_name = bfd_section_name (input_bfd, sym_sec);
4152 _bfd_error_handler
871b3ab2 4153 (_("%pB:%s has both normal and TLS relocs"),
2e684e75
AM
4154 input_bfd, sym_name);
4155 }
4156 bfd_set_error (bfd_error_bad_value);
4157 return FALSE;
4158 }
4159
9b52905e 4160 if ((tls_type & GOT_TLS_GD)
07d6d2b8
AM
4161 && r_type != R_PARISC_TLS_GD21L
4162 && r_type != R_PARISC_TLS_GD14R)
9b52905e
NC
4163 off += 2 * GOT_ENTRY_SIZE;
4164
4165 /* Add the base of the GOT to the relocation value. */
4166 relocation = (off
ce558b89
AM
4167 + htab->etab.sgot->output_offset
4168 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4169
4170 break;
4171 }
4172
4173 case R_PARISC_TLS_LE21L:
4174 case R_PARISC_TLS_LE14R:
4175 {
4176 relocation = tpoff (info, relocation);
4177 break;
4178 }
4179 break;
edd21aca 4180
30667bf3
AM
4181 default:
4182 break;
4183 }
252b5132 4184
875c0872
DA
4185 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4186 htab, sym_sec, hh, info);
252b5132 4187
875c0872 4188 if (rstatus == bfd_reloc_ok)
30667bf3 4189 continue;
252b5132 4190
875c0872 4191 if (hh != NULL)
9b52905e 4192 sym_name = hh_name (hh);
30667bf3
AM
4193 else
4194 {
4195 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4196 symtab_hdr->sh_link,
4197 sym->st_name);
4198 if (sym_name == NULL)
b34976b6 4199 return FALSE;
30667bf3
AM
4200 if (*sym_name == '\0')
4201 sym_name = bfd_section_name (input_bfd, sym_sec);
4202 }
edd21aca 4203
30667bf3 4204 howto = elf_hppa_howto_table + r_type;
252b5132 4205
875c0872 4206 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4207 {
875c0872 4208 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4209 {
4eca0228 4210 _bfd_error_handler
695344c0 4211 /* xgettext:c-format */
2dcf00ce 4212 (_("%pB(%pA+%#" PRIx64 "): cannot handle %s for %s"),
d003868e
AM
4213 input_bfd,
4214 input_section,
2dcf00ce 4215 (uint64_t) rela->r_offset,
f09ebc7d
AM
4216 howto->name,
4217 sym_name);
4218 bfd_set_error (bfd_error_bad_value);
b34976b6 4219 return FALSE;
f09ebc7d 4220 }
30667bf3
AM
4221 }
4222 else
1a72702b
AM
4223 (*info->callbacks->reloc_overflow)
4224 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4225 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4226 }
edd21aca 4227
b34976b6 4228 return TRUE;
30667bf3 4229}
252b5132 4230
30667bf3
AM
4231/* Finish up dynamic symbol handling. We set the contents of various
4232 dynamic sections here. */
252b5132 4233
b34976b6 4234static bfd_boolean
c39a58e6
AM
4235elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4236 struct bfd_link_info *info,
875c0872 4237 struct elf_link_hash_entry *eh,
c39a58e6 4238 Elf_Internal_Sym *sym)
30667bf3 4239{
83c81bfe 4240 struct elf32_hppa_link_hash_table *htab;
875c0872 4241 Elf_Internal_Rela rela;
a252afa4 4242 bfd_byte *loc;
edd21aca 4243
83c81bfe 4244 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4245 if (htab == NULL)
4246 return FALSE;
30667bf3 4247
875c0872 4248 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4249 {
4250 bfd_vma value;
30667bf3 4251
875c0872 4252 if (eh->plt.offset & 1)
8dea1268
AM
4253 abort ();
4254
30667bf3
AM
4255 /* This symbol has an entry in the procedure linkage table. Set
4256 it up.
4257
4258 The format of a plt entry is
74d1c347
AM
4259 <funcaddr>
4260 <__gp>
47d89dba 4261 */
30667bf3 4262 value = 0;
875c0872
DA
4263 if (eh->root.type == bfd_link_hash_defined
4264 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4265 {
875c0872
DA
4266 value = eh->root.u.def.value;
4267 if (eh->root.u.def.section->output_section != NULL)
4268 value += (eh->root.u.def.section->output_offset
4269 + eh->root.u.def.section->output_section->vma);
252b5132 4270 }
edd21aca 4271
a252afa4 4272 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4273 rela.r_offset = (eh->plt.offset
ce558b89
AM
4274 + htab->etab.splt->output_offset
4275 + htab->etab.splt->output_section->vma);
875c0872 4276 if (eh->dynindx != -1)
30667bf3 4277 {
875c0872
DA
4278 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4279 rela.r_addend = 0;
30667bf3 4280 }
ce757d15 4281 else
47d89dba 4282 {
a252afa4
DA
4283 /* This symbol has been marked to become local, and is
4284 used by a plabel so must be kept in the .plt. */
875c0872
DA
4285 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4286 rela.r_addend = value;
47d89dba
AM
4287 }
4288
ce558b89
AM
4289 loc = htab->etab.srelplt->contents;
4290 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4291 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
a252afa4 4292
875c0872 4293 if (!eh->def_regular)
30667bf3
AM
4294 {
4295 /* Mark the symbol as undefined, rather than as defined in
4296 the .plt section. Leave the value alone. */
4297 sym->st_shndx = SHN_UNDEF;
4298 }
4299 }
edd21aca 4300
9b52905e 4301 if (eh->got.offset != (bfd_vma) -1
2e684e75 4302 && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0
d336fa6d 4303 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
30667bf3 4304 {
d336fa6d
AM
4305 bfd_boolean is_dyn = (eh->dynindx != -1
4306 && !SYMBOL_REFERENCES_LOCAL (info, eh));
4307
4308 if (is_dyn || bfd_link_pic (info))
30667bf3 4309 {
d336fa6d
AM
4310 /* This symbol has an entry in the global offset table. Set
4311 it up. */
4312
4313 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4314 + htab->etab.sgot->output_offset
4315 + htab->etab.sgot->output_section->vma);
4316
4317 /* If this is a -Bsymbolic link and the symbol is defined
4318 locally or was forced to be local because of a version
4319 file, we just want to emit a RELATIVE reloc. The entry
4320 in the global offset table will already have been
4321 initialized in the relocate_section function. */
4322 if (!is_dyn)
4323 {
4324 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4325 rela.r_addend = (eh->root.u.def.value
4326 + eh->root.u.def.section->output_offset
4327 + eh->root.u.def.section->output_section->vma);
4328 }
4329 else
4330 {
4331 if ((eh->got.offset & 1) != 0)
4332 abort ();
875c0872 4333
d336fa6d
AM
4334 bfd_put_32 (output_bfd, 0,
4335 htab->etab.sgot->contents + (eh->got.offset & ~1));
4336 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4337 rela.r_addend = 0;
4338 }
edd21aca 4339
d336fa6d
AM
4340 loc = htab->etab.srelgot->contents;
4341 loc += (htab->etab.srelgot->reloc_count++
4342 * sizeof (Elf32_External_Rela));
4343 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4344 }
30667bf3 4345 }
edd21aca 4346
875c0872 4347 if (eh->needs_copy)
30667bf3 4348 {
875c0872 4349 asection *sec;
30667bf3
AM
4350
4351 /* This symbol needs a copy reloc. Set it up. */
4352
875c0872
DA
4353 if (! (eh->dynindx != -1
4354 && (eh->root.type == bfd_link_hash_defined
4355 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4356 abort ();
30667bf3 4357
875c0872
DA
4358 rela.r_offset = (eh->root.u.def.value
4359 + eh->root.u.def.section->output_offset
4360 + eh->root.u.def.section->output_section->vma);
4361 rela.r_addend = 0;
4362 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
afbf7e8e 4363 if (eh->root.u.def.section == htab->etab.sdynrelro)
5474d94f
AM
4364 sec = htab->etab.sreldynrelro;
4365 else
4366 sec = htab->etab.srelbss;
875c0872
DA
4367 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4368 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4369 }
4370
4371 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4372 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4373 {
4374 sym->st_shndx = SHN_ABS;
4375 }
4376
b34976b6 4377 return TRUE;
30667bf3
AM
4378}
4379
98ceb8ce
AM
4380/* Used to decide how to sort relocs in an optimal manner for the
4381 dynamic linker, before writing them out. */
4382
4383static enum elf_reloc_type_class
7e612e98
AM
4384elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4385 const asection *rel_sec ATTRIBUTE_UNUSED,
4386 const Elf_Internal_Rela *rela)
98ceb8ce 4387{
9b52905e 4388 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4389 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4390 check below. */
4391 switch ((int) ELF32_R_TYPE (rela->r_info))
4392 {
4393 case R_PARISC_TLS_DTPMOD32:
4394 case R_PARISC_TLS_DTPOFF32:
4395 case R_PARISC_TLS_TPREL32:
07d6d2b8 4396 return reloc_class_normal;
9b52905e
NC
4397 }
4398
cf35638d 4399 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4400 return reloc_class_relative;
4401
4402 switch ((int) ELF32_R_TYPE (rela->r_info))
4403 {
4404 case R_PARISC_IPLT:
4405 return reloc_class_plt;
4406 case R_PARISC_COPY:
4407 return reloc_class_copy;
4408 default:
4409 return reloc_class_normal;
4410 }
4411}
4412
30667bf3
AM
4413/* Finish up the dynamic sections. */
4414
b34976b6 4415static bfd_boolean
c39a58e6
AM
4416elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4417 struct bfd_link_info *info)
30667bf3
AM
4418{
4419 bfd *dynobj;
83c81bfe 4420 struct elf32_hppa_link_hash_table *htab;
30667bf3 4421 asection *sdyn;
894891db 4422 asection * sgot;
30667bf3 4423
83c81bfe 4424 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4425 if (htab == NULL)
4426 return FALSE;
4427
a63e02c7 4428 dynobj = htab->etab.dynobj;
30667bf3 4429
ce558b89 4430 sgot = htab->etab.sgot;
894891db
NC
4431 /* A broken linker script might have discarded the dynamic sections.
4432 Catch this here so that we do not seg-fault later on. */
4433 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4434 return FALSE;
4435
3d4d4302 4436 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4437
a63e02c7 4438 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4439 {
4440 Elf32_External_Dyn *dyncon, *dynconend;
4441
49e9d0d3
AM
4442 if (sdyn == NULL)
4443 abort ();
30667bf3
AM
4444
4445 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4446 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4447 for (; dyncon < dynconend; dyncon++)
edd21aca 4448 {
30667bf3
AM
4449 Elf_Internal_Dyn dyn;
4450 asection *s;
4451
4452 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4453
4454 switch (dyn.d_tag)
4455 {
4456 default:
3ac8354b 4457 continue;
30667bf3
AM
4458
4459 case DT_PLTGOT:
4460 /* Use PLTGOT to set the GOT register. */
4461 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4462 break;
4463
4464 case DT_JMPREL:
ce558b89 4465 s = htab->etab.srelplt;
30667bf3 4466 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4467 break;
4468
4469 case DT_PLTRELSZ:
ce558b89 4470 s = htab->etab.srelplt;
eea6121a 4471 dyn.d_un.d_val = s->size;
30667bf3
AM
4472 break;
4473 }
3ac8354b
AM
4474
4475 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4476 }
252b5132 4477 }
edd21aca 4478
894891db 4479 if (sgot != NULL && sgot->size != 0)
30667bf3 4480 {
74d1c347
AM
4481 /* Fill in the first entry in the global offset table.
4482 We use it to point to our dynamic section, if we have one. */
30667bf3 4483 bfd_put_32 (output_bfd,
c39a58e6 4484 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4485 sgot->contents);
30667bf3 4486
74d1c347 4487 /* The second entry is reserved for use by the dynamic linker. */
894891db 4488 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4489
30667bf3 4490 /* Set .got entry size. */
894891db 4491 elf_section_data (sgot->output_section)
74d1c347 4492 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4493 }
4494
ce558b89 4495 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
47d89dba 4496 {
f3c3938c
JDA
4497 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4498 plt stubs and as such the section does not hold a table of fixed-size
4499 entries. */
ce558b89 4500 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4501
83c81bfe 4502 if (htab->need_plt_stub)
47d89dba
AM
4503 {
4504 /* Set up the .plt stub. */
ce558b89
AM
4505 memcpy (htab->etab.splt->contents
4506 + htab->etab.splt->size - sizeof (plt_stub),
47d89dba
AM
4507 plt_stub, sizeof (plt_stub));
4508
ce558b89
AM
4509 if ((htab->etab.splt->output_offset
4510 + htab->etab.splt->output_section->vma
4511 + htab->etab.splt->size)
894891db
NC
4512 != (sgot->output_offset
4513 + sgot->output_section->vma))
47d89dba 4514 {
4eca0228 4515 _bfd_error_handler
47d89dba 4516 (_(".got section not immediately after .plt section"));
b34976b6 4517 return FALSE;
47d89dba
AM
4518 }
4519 }
4520 }
30667bf3 4521
b34976b6 4522 return TRUE;
30667bf3 4523}
252b5132 4524
30667bf3
AM
4525/* Called when writing out an object file to decide the type of a
4526 symbol. */
4527static int
c39a58e6 4528elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4529{
4530 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4531 return STT_PARISC_MILLI;
4532 else
4533 return type;
252b5132
RH
4534}
4535
4536/* Misc BFD support code. */
30667bf3
AM
4537#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4538#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4539#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4540#define elf_info_to_howto elf_hppa_info_to_howto
4541#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4542
252b5132 4543/* Stuff for the BFD linker. */
c46b7515 4544#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4545#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4546#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4547#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3 4548#define elf_backend_check_relocs elf32_hppa_check_relocs
c0e331c7 4549#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
30667bf3
AM
4550#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4551#define elf_backend_fake_sections elf_hppa_fake_sections
4552#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4553#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4554#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4555#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4556#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4557#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3 4558#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
edfc032f
AM
4559#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4560#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4561#define elf_backend_object_p elf32_hppa_object_p
4562#define elf_backend_final_write_processing elf_hppa_final_write_processing
4563#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4564#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4565#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4566
4567#define elf_backend_can_gc_sections 1
51b64d56 4568#define elf_backend_can_refcount 1
30667bf3
AM
4569#define elf_backend_plt_alignment 2
4570#define elf_backend_want_got_plt 0
4571#define elf_backend_plt_readonly 0
4572#define elf_backend_want_plt_sym 0
74d1c347 4573#define elf_backend_got_header_size 8
5474d94f 4574#define elf_backend_want_dynrelro 1
f0fe0e16 4575#define elf_backend_rela_normal 1
64f52338 4576#define elf_backend_dtrel_excludes_plt 1
a8c75b76 4577#define elf_backend_no_page_alias 1
252b5132 4578
6d00b590 4579#define TARGET_BIG_SYM hppa_elf32_vec
252b5132
RH
4580#define TARGET_BIG_NAME "elf32-hppa"
4581#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4582#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4583#define ELF_MACHINE_CODE EM_PARISC
4584#define ELF_MAXPAGESIZE 0x1000
d1036acb 4585#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4586#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4587
4588#include "elf32-target.h"
d952f17a
AM
4589
4590#undef TARGET_BIG_SYM
6d00b590 4591#define TARGET_BIG_SYM hppa_elf32_linux_vec
d952f17a 4592#undef TARGET_BIG_NAME
914dfb0f 4593#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4594#undef ELF_OSABI
9c55345c 4595#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4596#undef elf32_bed
4597#define elf32_bed elf32_hppa_linux_bed
d952f17a 4598
d952f17a 4599#include "elf32-target.h"
225247f0
JT
4600
4601#undef TARGET_BIG_SYM
6d00b590 4602#define TARGET_BIG_SYM hppa_elf32_nbsd_vec
225247f0 4603#undef TARGET_BIG_NAME
914dfb0f 4604#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4605#undef ELF_OSABI
4606#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4607#undef elf32_bed
4608#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4609
4610#include "elf32-target.h"