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252b5132 1/* BFD back-end for HP PA-RISC ELF files.
e5094212 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
7686d77d 3 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
4fbb74a6 4 Free Software Foundation, Inc.
252b5132 5
30667bf3 6 Original code by
252b5132
RH
7 Center for Software Science
8 Department of Computer Science
9 University of Utah
30667bf3 10 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9b52905e
NC
11 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
12 TLS support written by Randolph Chung <tausq@debian.org>
13
ae9a127f 14 This file is part of BFD, the Binary File Descriptor library.
252b5132 15
ae9a127f
NC
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
cd123cb7 18 the Free Software Foundation; either version 3 of the License, or
ae9a127f 19 (at your option) any later version.
252b5132 20
ae9a127f
NC
21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
252b5132 25
ae9a127f
NC
26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
cd123cb7
NC
28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
29 MA 02110-1301, USA. */
252b5132 30
252b5132 31#include "sysdep.h"
3db64b00 32#include "bfd.h"
252b5132
RH
33#include "libbfd.h"
34#include "elf-bfd.h"
9e103c9c
JL
35#include "elf/hppa.h"
36#include "libhppa.h"
37#include "elf32-hppa.h"
38#define ARCH_SIZE 32
edd21aca 39#include "elf32-hppa.h"
189c6563 40#include "elf-hppa.h"
9e103c9c 41
74d1c347
AM
42/* In order to gain some understanding of code in this file without
43 knowing all the intricate details of the linker, note the
44 following:
45
46 Functions named elf32_hppa_* are called by external routines, other
47 functions are only called locally. elf32_hppa_* functions appear
48 in this file more or less in the order in which they are called
49 from external routines. eg. elf32_hppa_check_relocs is called
50 early in the link process, elf32_hppa_finish_dynamic_sections is
51 one of the last functions. */
52
edd21aca 53/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
RH
54
55 The first is the elf32_hppa_link_hash_table which is derived
56 from the standard ELF linker hash table. We use this as a place to
57 attach other hash tables and static information.
58
59 The second is the stub hash table which is derived from the
60 base BFD hash table. The stub hash table holds the information
30667bf3
AM
61 necessary to build the linker stubs during a link.
62
63 There are a number of different stubs generated by the linker.
64
65 Long branch stub:
66 : ldil LR'X,%r1
67 : be,n RR'X(%sr4,%r1)
68
69 PIC long branch stub:
70 : b,l .+8,%r1
3ee1d854
AM
71 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
72 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
30667bf3
AM
73
74 Import stub to call shared library routine from normal object file
75 (single sub-space version)
3ee1d854
AM
76 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
77 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 78 : bv %r0(%r21)
3ee1d854 79 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
80
81 Import stub to call shared library routine from shared library
82 (single sub-space version)
3ee1d854
AM
83 : addil LR'ltoff,%r19 ; get procedure entry point
84 : ldw RR'ltoff(%r1),%r21
46fe4e66 85 : bv %r0(%r21)
3ee1d854 86 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
87
88 Import stub to call shared library routine from normal object file
89 (multiple sub-space support)
3ee1d854
AM
90 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
91 : ldw RR'lt_ptr+ltoff(%r1),%r21
92 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
93 : ldsid (%r21),%r1
94 : mtsp %r1,%sr0
95 : be 0(%sr0,%r21) ; branch to target
96 : stw %rp,-24(%sp) ; save rp
97
98 Import stub to call shared library routine from shared library
99 (multiple sub-space support)
3ee1d854
AM
100 : addil LR'ltoff,%r19 ; get procedure entry point
101 : ldw RR'ltoff(%r1),%r21
102 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
103 : ldsid (%r21),%r1
104 : mtsp %r1,%sr0
105 : be 0(%sr0,%r21) ; branch to target
106 : stw %rp,-24(%sp) ; save rp
107
108 Export stub to return from shared lib routine (multiple sub-space support)
109 One of these is created for each exported procedure in a shared
110 library (and stored in the shared lib). Shared lib routines are
111 called via the first instruction in the export stub so that we can
112 do an inter-space return. Not required for single sub-space.
113 : bl,n X,%rp ; trap the return
114 : nop
115 : ldw -24(%sp),%rp ; restore the original rp
116 : ldsid (%rp),%r1
117 : mtsp %r1,%sr0
ae9a127f 118 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 119
875c0872
DA
120
121/* Variable names follow a coding style.
122 Please follow this (Apps Hungarian) style:
123
124 Structure/Variable Prefix
125 elf_link_hash_table "etab"
126 elf_link_hash_entry "eh"
127
128 elf32_hppa_link_hash_table "htab"
129 elf32_hppa_link_hash_entry "hh"
130
131 bfd_hash_table "btab"
132 bfd_hash_entry "bh"
133
134 bfd_hash_table containing stubs "bstab"
135 elf32_hppa_stub_hash_entry "hsh"
136
137 elf32_hppa_dyn_reloc_entry "hdh"
138
139 Always remember to use GNU Coding Style. */
140
30667bf3
AM
141#define PLT_ENTRY_SIZE 8
142#define GOT_ENTRY_SIZE 4
143#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
144
47d89dba
AM
145static const bfd_byte plt_stub[] =
146{
147 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
148 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
149 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
150#define PLT_STUB_ENTRY (3*4)
151 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
152 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
153 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
154 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
155};
156
30667bf3 157/* Section name for stubs is the associated section name plus this
29942be8
NC
158 string. */
159#define STUB_SUFFIX ".stub"
30667bf3 160
98ceb8ce
AM
161/* We don't need to copy certain PC- or GP-relative dynamic relocs
162 into a shared object's dynamic section. All the relocs of the
163 limited class we are interested in, are absolute. */
164#ifndef RELATIVE_DYNRELOCS
165#define RELATIVE_DYNRELOCS 0
446f2863 166#define IS_ABSOLUTE_RELOC(r_type) 1
30667bf3
AM
167#endif
168
4fc8051d
AM
169/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
170 copying dynamic variables from a shared lib into an app's dynbss
171 section, and instead use a dynamic relocation to point into the
172 shared lib. */
173#define ELIMINATE_COPY_RELOCS 1
174
9b52905e
NC
175enum elf32_hppa_stub_type
176{
30667bf3
AM
177 hppa_stub_long_branch,
178 hppa_stub_long_branch_shared,
179 hppa_stub_import,
180 hppa_stub_import_shared,
181 hppa_stub_export,
182 hppa_stub_none
183};
184
9b52905e
NC
185struct elf32_hppa_stub_hash_entry
186{
edd21aca 187 /* Base hash table entry structure. */
a63e02c7 188 struct bfd_hash_entry bh_root;
252b5132 189
edd21aca
AM
190 /* The stub section. */
191 asection *stub_sec;
192
193 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 194 bfd_vma stub_offset;
252b5132
RH
195
196 /* Given the symbol's value and its section we can determine its final
197 value when building the stubs (so the stub knows where to jump. */
30667bf3 198 bfd_vma target_value;
252b5132 199 asection *target_section;
30667bf3
AM
200
201 enum elf32_hppa_stub_type stub_type;
202
203 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 204 struct elf32_hppa_link_hash_entry *hh;
30667bf3 205
25f72752
AM
206 /* Where this stub is being called from, or, in the case of combined
207 stub sections, the first input section in the group. */
208 asection *id_sec;
252b5132
RH
209};
210
9b52905e
NC
211struct elf32_hppa_link_hash_entry
212{
a63e02c7 213 struct elf_link_hash_entry eh;
30667bf3
AM
214
215 /* A pointer to the most recently used stub hash entry against this
216 symbol. */
a63e02c7 217 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 218
30667bf3
AM
219 /* Used to count relocations for delayed sizing of relocation
220 sections. */
9b52905e
NC
221 struct elf32_hppa_dyn_reloc_entry
222 {
30667bf3 223 /* Next relocation in the chain. */
a63e02c7 224 struct elf32_hppa_dyn_reloc_entry *hdh_next;
30667bf3 225
98ceb8ce
AM
226 /* The input section of the reloc. */
227 asection *sec;
30667bf3
AM
228
229 /* Number of relocs copied in this section. */
230 bfd_size_type count;
98ceb8ce
AM
231
232#if RELATIVE_DYNRELOCS
233 /* Number of relative relocs copied for the input section. */
234 bfd_size_type relative_count;
235#endif
236 } *dyn_relocs;
30667bf3 237
9b52905e
NC
238 enum
239 {
240 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
241 } tls_type;
242
74d1c347
AM
243 /* Set if this symbol is used by a plabel reloc. */
244 unsigned int plabel:1;
30667bf3
AM
245};
246
9b52905e
NC
247struct elf32_hppa_link_hash_table
248{
252b5132 249 /* The main hash table. */
a63e02c7 250 struct elf_link_hash_table etab;
252b5132
RH
251
252 /* The stub hash table. */
a63e02c7 253 struct bfd_hash_table bstab;
252b5132 254
30667bf3
AM
255 /* Linker stub bfd. */
256 bfd *stub_bfd;
257
30667bf3 258 /* Linker call-backs. */
c39a58e6
AM
259 asection * (*add_stub_section) (const char *, asection *);
260 void (*layout_sections_again) (void);
30667bf3 261
25f72752
AM
262 /* Array to keep track of which stub sections have been created, and
263 information on stub grouping. */
9b52905e
NC
264 struct map_stub
265 {
25f72752
AM
266 /* This is the section to which stubs in the group will be
267 attached. */
268 asection *link_sec;
269 /* The stub section. */
270 asection *stub_sec;
25f72752 271 } *stub_group;
30667bf3 272
b4655ea9
AM
273 /* Assorted information used by elf32_hppa_size_stubs. */
274 unsigned int bfd_count;
275 int top_index;
276 asection **input_list;
277 Elf_Internal_Sym **all_local_syms;
278
30667bf3
AM
279 /* Short-cuts to get to dynamic linker sections. */
280 asection *sgot;
281 asection *srelgot;
282 asection *splt;
283 asection *srelplt;
284 asection *sdynbss;
285 asection *srelbss;
47d89dba 286
c46b7515
AM
287 /* Used during a final link to store the base of the text and data
288 segments so that we can perform SEGREL relocations. */
289 bfd_vma text_segment_base;
290 bfd_vma data_segment_base;
291
47d89dba
AM
292 /* Whether we support multiple sub-spaces for shared libs. */
293 unsigned int multi_subspace:1;
294
067fa4a6 295 /* Flags set when various size branches are detected. Used to
47d89dba
AM
296 select suitable defaults for the stub group size. */
297 unsigned int has_12bit_branch:1;
298 unsigned int has_17bit_branch:1;
067fa4a6 299 unsigned int has_22bit_branch:1;
47d89dba
AM
300
301 /* Set if we need a .plt stub to support lazy dynamic linking. */
302 unsigned int need_plt_stub:1;
ec338859 303
87d72d41
AM
304 /* Small local sym cache. */
305 struct sym_cache sym_cache;
9b52905e
NC
306
307 /* Data for LDM relocations. */
308 union
309 {
310 bfd_signed_vma refcount;
311 bfd_vma offset;
312 } tls_ldm_got;
252b5132
RH
313};
314
30667bf3
AM
315/* Various hash macros and functions. */
316#define hppa_link_hash_table(p) \
4dfe6ac6
NC
317 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
318 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 319
875c0872
DA
320#define hppa_elf_hash_entry(ent) \
321 ((struct elf32_hppa_link_hash_entry *)(ent))
322
323#define hppa_stub_hash_entry(ent) \
324 ((struct elf32_hppa_stub_hash_entry *)(ent))
325
30667bf3
AM
326#define hppa_stub_hash_lookup(table, string, create, copy) \
327 ((struct elf32_hppa_stub_hash_entry *) \
328 bfd_hash_lookup ((table), (string), (create), (copy)))
329
9b52905e
NC
330#define hppa_elf_local_got_tls_type(abfd) \
331 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
332
333#define hh_name(hh) \
334 (hh ? hh->eh.root.root.string : "<undef>")
335
336#define eh_name(eh) \
337 (eh ? eh->root.root.string : "<undef>")
338
252b5132
RH
339/* Assorted hash table functions. */
340
341/* Initialize an entry in the stub hash table. */
342
343static struct bfd_hash_entry *
c39a58e6
AM
344stub_hash_newfunc (struct bfd_hash_entry *entry,
345 struct bfd_hash_table *table,
346 const char *string)
252b5132 347{
252b5132
RH
348 /* Allocate the structure if it has not already been allocated by a
349 subclass. */
ebe50bae 350 if (entry == NULL)
30667bf3 351 {
ebe50bae
AM
352 entry = bfd_hash_allocate (table,
353 sizeof (struct elf32_hppa_stub_hash_entry));
354 if (entry == NULL)
355 return entry;
30667bf3 356 }
252b5132
RH
357
358 /* Call the allocation method of the superclass. */
ebe50bae
AM
359 entry = bfd_hash_newfunc (entry, table, string);
360 if (entry != NULL)
252b5132 361 {
875c0872 362 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 363
252b5132 364 /* Initialize the local fields. */
875c0872
DA
365 hsh = hppa_stub_hash_entry (entry);
366 hsh->stub_sec = NULL;
367 hsh->stub_offset = 0;
368 hsh->target_value = 0;
369 hsh->target_section = NULL;
370 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 371 hsh->hh = NULL;
875c0872 372 hsh->id_sec = NULL;
30667bf3
AM
373 }
374
ebe50bae 375 return entry;
30667bf3
AM
376}
377
30667bf3
AM
378/* Initialize an entry in the link hash table. */
379
380static struct bfd_hash_entry *
c39a58e6
AM
381hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
382 struct bfd_hash_table *table,
383 const char *string)
30667bf3 384{
30667bf3
AM
385 /* Allocate the structure if it has not already been allocated by a
386 subclass. */
ebe50bae 387 if (entry == NULL)
30667bf3 388 {
ebe50bae
AM
389 entry = bfd_hash_allocate (table,
390 sizeof (struct elf32_hppa_link_hash_entry));
391 if (entry == NULL)
392 return entry;
30667bf3
AM
393 }
394
395 /* Call the allocation method of the superclass. */
ebe50bae
AM
396 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
397 if (entry != NULL)
30667bf3 398 {
875c0872 399 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 400
30667bf3 401 /* Initialize the local fields. */
875c0872 402 hh = hppa_elf_hash_entry (entry);
a63e02c7 403 hh->hsh_cache = NULL;
875c0872
DA
404 hh->dyn_relocs = NULL;
405 hh->plabel = 0;
9b52905e 406 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
407 }
408
ebe50bae 409 return entry;
252b5132
RH
410}
411
252b5132
RH
412/* Create the derived linker hash table. The PA ELF port uses the derived
413 hash table to keep information specific to the PA ELF linker (without
414 using static variables). */
415
416static struct bfd_link_hash_table *
c39a58e6 417elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 418{
875c0872
DA
419 struct elf32_hppa_link_hash_table *htab;
420 bfd_size_type amt = sizeof (*htab);
252b5132 421
9b52905e 422 htab = bfd_malloc (amt);
875c0872 423 if (htab == NULL)
252b5132 424 return NULL;
edd21aca 425
66eb6687 426 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
427 sizeof (struct elf32_hppa_link_hash_entry),
428 HPPA32_ELF_DATA))
252b5132 429 {
875c0872 430 free (htab);
252b5132
RH
431 return NULL;
432 }
edd21aca
AM
433
434 /* Init the stub hash table too. */
66eb6687
AM
435 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
436 sizeof (struct elf32_hppa_stub_hash_entry)))
edd21aca
AM
437 return NULL;
438
875c0872
DA
439 htab->stub_bfd = NULL;
440 htab->add_stub_section = NULL;
441 htab->layout_sections_again = NULL;
442 htab->stub_group = NULL;
443 htab->sgot = NULL;
444 htab->srelgot = NULL;
445 htab->splt = NULL;
446 htab->srelplt = NULL;
447 htab->sdynbss = NULL;
448 htab->srelbss = NULL;
449 htab->text_segment_base = (bfd_vma) -1;
450 htab->data_segment_base = (bfd_vma) -1;
451 htab->multi_subspace = 0;
452 htab->has_12bit_branch = 0;
453 htab->has_17bit_branch = 0;
454 htab->has_22bit_branch = 0;
455 htab->need_plt_stub = 0;
87d72d41 456 htab->sym_cache.abfd = NULL;
9b52905e 457 htab->tls_ldm_got.refcount = 0;
875c0872 458
a63e02c7 459 return &htab->etab.root;
252b5132
RH
460}
461
e2d34d7d
DJ
462/* Free the derived linker hash table. */
463
464static void
875c0872 465elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab)
e2d34d7d 466{
875c0872
DA
467 struct elf32_hppa_link_hash_table *htab
468 = (struct elf32_hppa_link_hash_table *) btab;
e2d34d7d 469
a63e02c7 470 bfd_hash_table_free (&htab->bstab);
875c0872 471 _bfd_generic_link_hash_table_free (btab);
e2d34d7d
DJ
472}
473
30667bf3
AM
474/* Build a name for an entry in the stub hash table. */
475
edd21aca 476static char *
c39a58e6
AM
477hppa_stub_name (const asection *input_section,
478 const asection *sym_sec,
875c0872
DA
479 const struct elf32_hppa_link_hash_entry *hh,
480 const Elf_Internal_Rela *rela)
edd21aca
AM
481{
482 char *stub_name;
dc810e39 483 bfd_size_type len;
edd21aca 484
875c0872 485 if (hh)
30667bf3 486 {
9b52905e 487 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
488 stub_name = bfd_malloc (len);
489 if (stub_name != NULL)
9b52905e
NC
490 sprintf (stub_name, "%08x_%s+%x",
491 input_section->id & 0xffffffff,
492 hh_name (hh),
493 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
494 }
495 else
edd21aca 496 {
30667bf3
AM
497 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
498 stub_name = bfd_malloc (len);
499 if (stub_name != NULL)
9b52905e
NC
500 sprintf (stub_name, "%08x_%x:%x+%x",
501 input_section->id & 0xffffffff,
502 sym_sec->id & 0xffffffff,
503 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
504 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
505 }
506 return stub_name;
507}
252b5132 508
30667bf3
AM
509/* Look up an entry in the stub hash. Stub entries are cached because
510 creating the stub name takes a bit of time. */
511
512static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
513hppa_get_stub_entry (const asection *input_section,
514 const asection *sym_sec,
875c0872
DA
515 struct elf32_hppa_link_hash_entry *hh,
516 const Elf_Internal_Rela *rela,
c39a58e6 517 struct elf32_hppa_link_hash_table *htab)
252b5132 518{
a63e02c7 519 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
520 const asection *id_sec;
521
522 /* If this input section is part of a group of sections sharing one
523 stub section, then use the id of the first section in the group.
524 Stub names need to include a section id, as there may well be
525 more than one stub used to reach say, printf, and we need to
526 distinguish between them. */
83c81bfe 527 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 528
a63e02c7
DA
529 if (hh != NULL && hh->hsh_cache != NULL
530 && hh->hsh_cache->hh == hh
531 && hh->hsh_cache->id_sec == id_sec)
edd21aca 532 {
a63e02c7 533 hsh_entry = hh->hsh_cache;
30667bf3
AM
534 }
535 else
536 {
30667bf3 537 char *stub_name;
edd21aca 538
875c0872 539 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
540 if (stub_name == NULL)
541 return NULL;
edd21aca 542
a63e02c7 543 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 544 stub_name, FALSE, FALSE);
875c0872 545 if (hh != NULL)
a63e02c7 546 hh->hsh_cache = hsh_entry;
30667bf3
AM
547
548 free (stub_name);
edd21aca 549 }
30667bf3 550
a63e02c7 551 return hsh_entry;
30667bf3
AM
552}
553
30667bf3
AM
554/* Add a new stub entry to the stub hash. Not all fields of the new
555 stub entry are initialised. */
556
557static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
558hppa_add_stub (const char *stub_name,
559 asection *section,
560 struct elf32_hppa_link_hash_table *htab)
30667bf3 561{
25f72752 562 asection *link_sec;
30667bf3 563 asection *stub_sec;
875c0872 564 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 565
83c81bfe
AM
566 link_sec = htab->stub_group[section->id].link_sec;
567 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 568 if (stub_sec == NULL)
edd21aca 569 {
83c81bfe 570 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
571 if (stub_sec == NULL)
572 {
d4c88bbb 573 size_t namelen;
dc810e39 574 bfd_size_type len;
30667bf3
AM
575 char *s_name;
576
d4c88bbb
AM
577 namelen = strlen (link_sec->name);
578 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 579 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
580 if (s_name == NULL)
581 return NULL;
582
d4c88bbb
AM
583 memcpy (s_name, link_sec->name, namelen);
584 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 585 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
586 if (stub_sec == NULL)
587 return NULL;
83c81bfe 588 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 589 }
83c81bfe 590 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 591 }
252b5132 592
30667bf3 593 /* Enter this entry into the linker stub hash table. */
a63e02c7 594 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 595 TRUE, FALSE);
875c0872 596 if (hsh == NULL)
30667bf3 597 {
d003868e
AM
598 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
599 section->owner,
30667bf3
AM
600 stub_name);
601 return NULL;
edd21aca
AM
602 }
603
875c0872
DA
604 hsh->stub_sec = stub_sec;
605 hsh->stub_offset = 0;
606 hsh->id_sec = link_sec;
607 return hsh;
edd21aca
AM
608}
609
30667bf3
AM
610/* Determine the type of stub needed, if any, for a call. */
611
612static enum elf32_hppa_stub_type
c39a58e6 613hppa_type_of_stub (asection *input_sec,
875c0872
DA
614 const Elf_Internal_Rela *rela,
615 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
616 bfd_vma destination,
617 struct bfd_link_info *info)
edd21aca 618{
edd21aca 619 bfd_vma location;
30667bf3
AM
620 bfd_vma branch_offset;
621 bfd_vma max_branch_offset;
622 unsigned int r_type;
623
875c0872 624 if (hh != NULL
a63e02c7
DA
625 && hh->eh.plt.offset != (bfd_vma) -1
626 && hh->eh.dynindx != -1
875c0872 627 && !hh->plabel
a252afa4 628 && (info->shared
a63e02c7
DA
629 || !hh->eh.def_regular
630 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 631 {
067fa4a6
AM
632 /* We need an import stub. Decide between hppa_stub_import
633 and hppa_stub_import_shared later. */
30667bf3
AM
634 return hppa_stub_import;
635 }
edd21aca 636
30667bf3
AM
637 /* Determine where the call point is. */
638 location = (input_sec->output_offset
639 + input_sec->output_section->vma
875c0872 640 + rela->r_offset);
edd21aca 641
30667bf3 642 branch_offset = destination - location - 8;
875c0872 643 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 644
30667bf3
AM
645 /* Determine if a long branch stub is needed. parisc branch offsets
646 are relative to the second instruction past the branch, ie. +8
647 bytes on from the branch instruction location. The offset is
648 signed and counts in units of 4 bytes. */
649 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
650 max_branch_offset = (1 << (17 - 1)) << 2;
651
30667bf3 652 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
653 max_branch_offset = (1 << (12 - 1)) << 2;
654
25f72752 655 else /* R_PARISC_PCREL22F. */
9b52905e 656 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 657
30667bf3 658 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
659 return hppa_stub_long_branch;
660
30667bf3
AM
661 return hppa_stub_none;
662}
edd21aca 663
30667bf3
AM
664/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
665 IN_ARG contains the link info pointer. */
edd21aca 666
30667bf3
AM
667#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
668#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 669
30667bf3 670#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 671#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 672#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 673
3ee1d854
AM
674#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
675#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 676#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 677#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 678
3ee1d854
AM
679#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
680#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 681
30667bf3
AM
682#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
683#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
684#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
685#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 686
067fa4a6 687#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
688#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
689#define NOP 0x08000240 /* nop */
690#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
691#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
692#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 693
30667bf3
AM
694#ifndef R19_STUBS
695#define R19_STUBS 1
696#endif
edd21aca 697
30667bf3
AM
698#if R19_STUBS
699#define LDW_R1_DLT LDW_R1_R19
700#else
701#define LDW_R1_DLT LDW_R1_DP
702#endif
edd21aca 703
b34976b6 704static bfd_boolean
875c0872 705hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 706{
875c0872 707 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 708 struct bfd_link_info *info;
83c81bfe 709 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
710 asection *stub_sec;
711 bfd *stub_bfd;
712 bfd_byte *loc;
713 bfd_vma sym_value;
74d1c347 714 bfd_vma insn;
8dea1268 715 bfd_vma off;
74d1c347 716 int val;
30667bf3 717 int size;
edd21aca 718
30667bf3 719 /* Massage our args to the form they really have. */
875c0872
DA
720 hsh = hppa_stub_hash_entry (bh);
721 info = (struct bfd_link_info *)in_arg;
30667bf3 722
83c81bfe 723 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
724 if (htab == NULL)
725 return FALSE;
726
875c0872 727 stub_sec = hsh->stub_sec;
edd21aca 728
30667bf3 729 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
730 hsh->stub_offset = stub_sec->size;
731 loc = stub_sec->contents + hsh->stub_offset;
252b5132 732
30667bf3
AM
733 stub_bfd = stub_sec->owner;
734
875c0872 735 switch (hsh->stub_type)
30667bf3
AM
736 {
737 case hppa_stub_long_branch:
738 /* Create the long branch. A long branch is formed with "ldil"
739 loading the upper bits of the target address into a register,
740 then branching with "be" which adds in the lower bits.
741 The "be" has its delay slot nullified. */
875c0872
DA
742 sym_value = (hsh->target_value
743 + hsh->target_section->output_offset
744 + hsh->target_section->output_section->vma);
30667bf3 745
c39a58e6 746 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 747 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
748 bfd_put_32 (stub_bfd, insn, loc);
749
c39a58e6 750 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 751 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
752 bfd_put_32 (stub_bfd, insn, loc + 4);
753
30667bf3 754 size = 8;
edd21aca
AM
755 break;
756
30667bf3
AM
757 case hppa_stub_long_branch_shared:
758 /* Branches are relative. This is where we are going to. */
875c0872
DA
759 sym_value = (hsh->target_value
760 + hsh->target_section->output_offset
761 + hsh->target_section->output_section->vma);
30667bf3
AM
762
763 /* And this is where we are coming from, more or less. */
875c0872 764 sym_value -= (hsh->stub_offset
30667bf3
AM
765 + stub_sec->output_offset
766 + stub_sec->output_section->vma);
767
74d1c347 768 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 769 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 770 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
771 bfd_put_32 (stub_bfd, insn, loc + 4);
772
47d89dba 773 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 774 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
775 bfd_put_32 (stub_bfd, insn, loc + 8);
776 size = 12;
777 break;
edd21aca 778
30667bf3
AM
779 case hppa_stub_import:
780 case hppa_stub_import_shared:
a63e02c7 781 off = hsh->hh->eh.plt.offset;
8dea1268 782 if (off >= (bfd_vma) -2)
49e9d0d3 783 abort ();
8dea1268
AM
784
785 off &= ~ (bfd_vma) 1;
786 sym_value = (off
83c81bfe
AM
787 + htab->splt->output_offset
788 + htab->splt->output_section->vma
789 - elf_gp (htab->splt->output_section->owner));
30667bf3
AM
790
791 insn = ADDIL_DP;
792#if R19_STUBS
875c0872 793 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
794 insn = ADDIL_R19;
795#endif
c39a58e6 796 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 797 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 798 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 799
47d89dba
AM
800 /* It is critical to use lrsel/rrsel here because we are using
801 two different offsets (+0 and +4) from sym_value. If we use
802 lsel/rsel then with unfortunate sym_values we will round
803 sym_value+4 up to the next 2k block leading to a mis-match
804 between the lsel and rsel value. */
c39a58e6 805 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 806 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 807 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 808
83c81bfe 809 if (htab->multi_subspace)
30667bf3 810 {
47d89dba 811 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 812 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 813 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 814
74d1c347
AM
815 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
816 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
817 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
818 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 819
30667bf3
AM
820 size = 28;
821 }
822 else
823 {
74d1c347 824 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 825 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 826 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 827 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 828
30667bf3
AM
829 size = 16;
830 }
252b5132 831
30667bf3 832 break;
252b5132 833
30667bf3
AM
834 case hppa_stub_export:
835 /* Branches are relative. This is where we are going to. */
875c0872
DA
836 sym_value = (hsh->target_value
837 + hsh->target_section->output_offset
838 + hsh->target_section->output_section->vma);
252b5132 839
30667bf3 840 /* And this is where we are coming from. */
875c0872 841 sym_value -= (hsh->stub_offset
30667bf3
AM
842 + stub_sec->output_offset
843 + stub_sec->output_section->vma);
edd21aca 844
067fa4a6
AM
845 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
846 && (!htab->has_22bit_branch
847 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 848 {
edd21aca 849 (*_bfd_error_handler)
d003868e 850 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 851 hsh->target_section->owner,
d003868e 852 stub_sec,
875c0872 853 (long) hsh->stub_offset,
a63e02c7 854 hsh->bh_root.string);
30667bf3 855 bfd_set_error (bfd_error_bad_value);
b34976b6 856 return FALSE;
252b5132 857 }
30667bf3 858
74d1c347 859 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
860 if (!htab->has_22bit_branch)
861 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
862 else
863 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
864 bfd_put_32 (stub_bfd, insn, loc);
865
74d1c347
AM
866 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
867 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
868 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
869 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
870 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
871
872 /* Point the function symbol at the stub. */
a63e02c7
DA
873 hsh->hh->eh.root.u.def.section = stub_sec;
874 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
875
876 size = 24;
877 break;
878
879 default:
880 BFD_FAIL ();
b34976b6 881 return FALSE;
252b5132
RH
882 }
883
eea6121a 884 stub_sec->size += size;
b34976b6 885 return TRUE;
252b5132
RH
886}
887
30667bf3
AM
888#undef LDIL_R1
889#undef BE_SR4_R1
890#undef BL_R1
891#undef ADDIL_R1
892#undef DEPI_R1
30667bf3
AM
893#undef LDW_R1_R21
894#undef LDW_R1_DLT
895#undef LDW_R1_R19
896#undef ADDIL_R19
897#undef LDW_R1_DP
898#undef LDSID_R21_R1
899#undef MTSP_R1
900#undef BE_SR0_R21
901#undef STW_RP
902#undef BV_R0_R21
903#undef BL_RP
904#undef NOP
905#undef LDW_RP
906#undef LDSID_RP_R1
907#undef BE_SR0_RP
252b5132 908
30667bf3
AM
909/* As above, but don't actually build the stub. Just bump offset so
910 we know stub section sizes. */
911
b34976b6 912static bfd_boolean
875c0872 913hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 914{
875c0872 915 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 916 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
917 int size;
918
919 /* Massage our args to the form they really have. */
875c0872 920 hsh = hppa_stub_hash_entry (bh);
c39a58e6 921 htab = in_arg;
30667bf3 922
875c0872 923 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 924 size = 8;
875c0872 925 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 926 size = 12;
875c0872 927 else if (hsh->stub_type == hppa_stub_export)
30667bf3 928 size = 24;
74d1c347 929 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 930 {
83c81bfe 931 if (htab->multi_subspace)
30667bf3
AM
932 size = 28;
933 else
934 size = 16;
935 }
252b5132 936
875c0872 937 hsh->stub_sec->size += size;
b34976b6 938 return TRUE;
30667bf3 939}
252b5132 940
30667bf3
AM
941/* Return nonzero if ABFD represents an HPPA ELF32 file.
942 Additionally we set the default architecture and machine. */
943
b34976b6 944static bfd_boolean
c39a58e6 945elf32_hppa_object_p (bfd *abfd)
30667bf3 946{
24a5e751
L
947 Elf_Internal_Ehdr * i_ehdrp;
948 unsigned int flags;
252b5132 949
24a5e751
L
950 i_ehdrp = elf_elfheader (abfd);
951 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
952 {
9c55345c 953 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 954 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 955 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 956 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 957 return FALSE;
24a5e751 958 }
225247f0
JT
959 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
960 {
961 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
962 but the kernel produces corefiles with OSABI=SysV. */
963 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
964 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
965 return FALSE;
966 }
24a5e751
L
967 else
968 {
969 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 970 return FALSE;
24a5e751
L
971 }
972
973 flags = i_ehdrp->e_flags;
30667bf3
AM
974 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
975 {
976 case EFA_PARISC_1_0:
977 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
978 case EFA_PARISC_1_1:
979 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
980 case EFA_PARISC_2_0:
981 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
982 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
983 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
984 }
b34976b6 985 return TRUE;
252b5132
RH
986}
987
30667bf3
AM
988/* Create the .plt and .got sections, and set up our hash table
989 short-cuts to various dynamic sections. */
990
b34976b6 991static bfd_boolean
c39a58e6 992elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 993{
83c81bfe 994 struct elf32_hppa_link_hash_table *htab;
875c0872 995 struct elf_link_hash_entry *eh;
edd21aca 996
30667bf3 997 /* Don't try to create the .plt and .got twice. */
83c81bfe 998 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
999 if (htab == NULL)
1000 return FALSE;
83c81bfe 1001 if (htab->splt != NULL)
b34976b6 1002 return TRUE;
edd21aca 1003
30667bf3
AM
1004 /* Call the generic code to do most of the work. */
1005 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 1006 return FALSE;
252b5132 1007
83c81bfe
AM
1008 htab->splt = bfd_get_section_by_name (abfd, ".plt");
1009 htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
30667bf3 1010
83c81bfe 1011 htab->sgot = bfd_get_section_by_name (abfd, ".got");
64e77c6d 1012 htab->srelgot = bfd_get_section_by_name (abfd, ".rela.got");
edd21aca 1013
83c81bfe
AM
1014 htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
1015 htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
30667bf3 1016
b18e2ae5
AM
1017 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1018 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
1019 eh = elf_hash_table (info)->hgot;
1020 eh->forced_local = 0;
1021 eh->other = STV_DEFAULT;
1022 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1023}
1024
ebe50bae
AM
1025/* Copy the extra info we tack onto an elf_link_hash_entry. */
1026
51b64d56 1027static void
fcfa13d2 1028elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1029 struct elf_link_hash_entry *eh_dir,
1030 struct elf_link_hash_entry *eh_ind)
ebe50bae 1031{
875c0872 1032 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1033
875c0872
DA
1034 hh_dir = hppa_elf_hash_entry (eh_dir);
1035 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1036
875c0872 1037 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1038 {
875c0872 1039 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1040 {
875c0872
DA
1041 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1042 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1043
fcfa13d2 1044 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1045 list. Merge any entries against the same section. */
875c0872 1046 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1047 {
875c0872 1048 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1049
fcfa13d2
AM
1050 for (hdh_q = hh_dir->dyn_relocs;
1051 hdh_q != NULL;
1052 hdh_q = hdh_q->hdh_next)
875c0872 1053 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1054 {
1055#if RELATIVE_DYNRELOCS
875c0872 1056 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1057#endif
875c0872 1058 hdh_q->count += hdh_p->count;
a63e02c7 1059 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1060 break;
1061 }
875c0872 1062 if (hdh_q == NULL)
a63e02c7 1063 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1064 }
875c0872 1065 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1066 }
1067
875c0872
DA
1068 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1069 hh_ind->dyn_relocs = NULL;
ebe50bae 1070 }
ebe50bae 1071
4fc8051d 1072 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1073 && eh_ind->root.type != bfd_link_hash_indirect
1074 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1075 {
1076 /* If called to transfer flags for a weakdef during processing
1077 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1078 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
875c0872
DA
1079 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1080 eh_dir->ref_regular |= eh_ind->ref_regular;
1081 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1082 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1083 }
4fc8051d 1084 else
9b52905e
NC
1085 {
1086 if (eh_ind->root.type == bfd_link_hash_indirect
1087 && eh_dir->got.refcount <= 0)
1088 {
1089 hh_dir->tls_type = hh_ind->tls_type;
1090 hh_ind->tls_type = GOT_UNKNOWN;
1091 }
1092
1093 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1094 }
1095}
1096
1097static int
1098elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1099 int r_type, int is_local ATTRIBUTE_UNUSED)
1100{
1101 /* For now we don't support linker optimizations. */
1102 return r_type;
ebe50bae
AM
1103}
1104
d45b7d74
DA
1105/* Return a pointer to the local GOT, PLT and TLS reference counts
1106 for ABFD. Returns NULL if the storage allocation fails. */
1107
1108static bfd_signed_vma *
1109hppa32_elf_local_refcounts (bfd *abfd)
1110{
1111 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1112 bfd_signed_vma *local_refcounts;
1113
1114 local_refcounts = elf_local_got_refcounts (abfd);
1115 if (local_refcounts == NULL)
1116 {
1117 bfd_size_type size;
1118
1119 /* Allocate space for local GOT and PLT reference
1120 counts. Done this way to save polluting elf_obj_tdata
1121 with another target specific pointer. */
1122 size = symtab_hdr->sh_info;
1123 size *= 2 * sizeof (bfd_signed_vma);
1124 /* Add in space to store the local GOT TLS types. */
1125 size += symtab_hdr->sh_info;
1126 local_refcounts = bfd_zalloc (abfd, size);
1127 if (local_refcounts == NULL)
1128 return NULL;
1129 elf_local_got_refcounts (abfd) = local_refcounts;
1130 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1131 symtab_hdr->sh_info);
1132 }
1133 return local_refcounts;
1134}
1135
1136
30667bf3 1137/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1138 calculate needed space in the global offset table, procedure linkage
1139 table, and dynamic reloc sections. At this point we haven't
1140 necessarily read all the input files. */
252b5132 1141
b34976b6 1142static bfd_boolean
c39a58e6
AM
1143elf32_hppa_check_relocs (bfd *abfd,
1144 struct bfd_link_info *info,
1145 asection *sec,
1146 const Elf_Internal_Rela *relocs)
252b5132 1147{
30667bf3 1148 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1149 struct elf_link_hash_entry **eh_syms;
1150 const Elf_Internal_Rela *rela;
1151 const Elf_Internal_Rela *rela_end;
83c81bfe 1152 struct elf32_hppa_link_hash_table *htab;
30667bf3 1153 asection *sreloc;
9b52905e 1154 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1155
1049f94e 1156 if (info->relocatable)
b34976b6 1157 return TRUE;
30667bf3 1158
83c81bfe 1159 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1160 if (htab == NULL)
1161 return FALSE;
30667bf3 1162 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1163 eh_syms = elf_sym_hashes (abfd);
30667bf3 1164 sreloc = NULL;
30667bf3 1165
875c0872
DA
1166 rela_end = relocs + sec->reloc_count;
1167 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1168 {
1169 enum {
1170 NEED_GOT = 1,
1171 NEED_PLT = 2,
1172 NEED_DYNREL = 4,
98ceb8ce 1173 PLT_PLABEL = 8
30667bf3 1174 };
edd21aca 1175
30667bf3 1176 unsigned int r_symndx, r_type;
875c0872
DA
1177 struct elf32_hppa_link_hash_entry *hh;
1178 int need_entry = 0;
252b5132 1179
875c0872 1180 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1181
30667bf3 1182 if (r_symndx < symtab_hdr->sh_info)
875c0872 1183 hh = NULL;
30667bf3 1184 else
f7c5057a 1185 {
875c0872 1186 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1187 while (hh->eh.root.type == bfd_link_hash_indirect
1188 || hh->eh.root.type == bfd_link_hash_warning)
1189 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
f7c5057a 1190 }
252b5132 1191
875c0872 1192 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1193 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1194
30667bf3
AM
1195 switch (r_type)
1196 {
1197 case R_PARISC_DLTIND14F:
1198 case R_PARISC_DLTIND14R:
1199 case R_PARISC_DLTIND21L:
1200 /* This symbol requires a global offset table entry. */
1201 need_entry = NEED_GOT;
30667bf3
AM
1202 break;
1203
1204 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1205 case R_PARISC_PLABEL21L:
1206 case R_PARISC_PLABEL32:
74d1c347 1207 /* If the addend is non-zero, we break badly. */
875c0872 1208 if (rela->r_addend != 0)
49e9d0d3 1209 abort ();
74d1c347
AM
1210
1211 /* If we are creating a shared library, then we need to
1212 create a PLT entry for all PLABELs, because PLABELs with
1213 local symbols may be passed via a pointer to another
1214 object. Additionally, output a dynamic relocation
4dc86686 1215 pointing to the PLT entry.
875c0872 1216
4dc86686
AM
1217 For executables, the original 32-bit ABI allowed two
1218 different styles of PLABELs (function pointers): For
1219 global functions, the PLABEL word points into the .plt
1220 two bytes past a (function address, gp) pair, and for
1221 local functions the PLABEL points directly at the
1222 function. The magic +2 for the first type allows us to
1223 differentiate between the two. As you can imagine, this
1224 is a real pain when it comes to generating code to call
1225 functions indirectly or to compare function pointers.
1226 We avoid the mess by always pointing a PLABEL into the
1227 .plt, even for local functions. */
74d1c347 1228 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1229 break;
1230
1231 case R_PARISC_PCREL12F:
83c81bfe 1232 htab->has_12bit_branch = 1;
067fa4a6
AM
1233 goto branch_common;
1234
30667bf3
AM
1235 case R_PARISC_PCREL17C:
1236 case R_PARISC_PCREL17F:
83c81bfe 1237 htab->has_17bit_branch = 1;
067fa4a6
AM
1238 goto branch_common;
1239
30667bf3 1240 case R_PARISC_PCREL22F:
067fa4a6
AM
1241 htab->has_22bit_branch = 1;
1242 branch_common:
47d89dba
AM
1243 /* Function calls might need to go through the .plt, and
1244 might require long branch stubs. */
875c0872 1245 if (hh == NULL)
30667bf3
AM
1246 {
1247 /* We know local syms won't need a .plt entry, and if
1248 they need a long branch stub we can't guarantee that
1249 we can reach the stub. So just flag an error later
1250 if we're doing a shared link and find we need a long
1251 branch stub. */
1252 continue;
1253 }
1254 else
1255 {
1256 /* Global symbols will need a .plt entry if they remain
1257 global, and in most cases won't need a long branch
1258 stub. Unfortunately, we have to cater for the case
1259 where a symbol is forced local by versioning, or due
1260 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1261 need_entry = NEED_PLT;
a63e02c7 1262 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1263 need_entry = 0;
30667bf3
AM
1264 }
1265 break;
1266
36751eee 1267 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1268 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1269 case R_PARISC_PCREL14F: /* PC relative load/store. */
1270 case R_PARISC_PCREL14R:
1271 case R_PARISC_PCREL17R: /* External branches. */
1272 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1273 case R_PARISC_PCREL32:
30667bf3
AM
1274 /* We don't need to propagate the relocation if linking a
1275 shared object since these are section relative. */
1276 continue;
1277
1278 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1279 case R_PARISC_DPREL14R:
1280 case R_PARISC_DPREL21L:
1281 if (info->shared)
1282 {
1283 (*_bfd_error_handler)
d003868e
AM
1284 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1285 abfd,
30667bf3
AM
1286 elf_hppa_howto_table[r_type].name);
1287 bfd_set_error (bfd_error_bad_value);
b34976b6 1288 return FALSE;
30667bf3
AM
1289 }
1290 /* Fall through. */
1291
1292 case R_PARISC_DIR17F: /* Used for external branches. */
1293 case R_PARISC_DIR17R:
47d89dba
AM
1294 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1295 case R_PARISC_DIR14R:
30667bf3 1296 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1297 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1298 /* We may want to output a dynamic relocation later. */
1299 need_entry = NEED_DYNREL;
1300 break;
1301
1302 /* This relocation describes the C++ object vtable hierarchy.
1303 Reconstruct it for later use during GC. */
1304 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1305 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1306 return FALSE;
30667bf3
AM
1307 continue;
1308
1309 /* This relocation describes which C++ vtable entries are actually
1310 used. Record for later use during GC. */
1311 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1312 BFD_ASSERT (hh != NULL);
1313 if (hh != NULL
1314 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1315 return FALSE;
30667bf3
AM
1316 continue;
1317
9b52905e
NC
1318 case R_PARISC_TLS_GD21L:
1319 case R_PARISC_TLS_GD14R:
1320 case R_PARISC_TLS_LDM21L:
1321 case R_PARISC_TLS_LDM14R:
1322 need_entry = NEED_GOT;
1323 break;
1324
1325 case R_PARISC_TLS_IE21L:
1326 case R_PARISC_TLS_IE14R:
1327 if (info->shared)
1328 info->flags |= DF_STATIC_TLS;
1329 need_entry = NEED_GOT;
1330 break;
1331
30667bf3
AM
1332 default:
1333 continue;
1334 }
1335
1336 /* Now carry out our orders. */
1337 if (need_entry & NEED_GOT)
1338 {
9b52905e
NC
1339 switch (r_type)
1340 {
1341 default:
1342 tls_type = GOT_NORMAL;
1343 break;
1344 case R_PARISC_TLS_GD21L:
1345 case R_PARISC_TLS_GD14R:
1346 tls_type |= GOT_TLS_GD;
1347 break;
1348 case R_PARISC_TLS_LDM21L:
1349 case R_PARISC_TLS_LDM14R:
1350 tls_type |= GOT_TLS_LDM;
1351 break;
1352 case R_PARISC_TLS_IE21L:
1353 case R_PARISC_TLS_IE14R:
1354 tls_type |= GOT_TLS_IE;
1355 break;
1356 }
1357
30667bf3 1358 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1359 relocation for this entry. */
83c81bfe 1360 if (htab->sgot == NULL)
30667bf3 1361 {
a63e02c7
DA
1362 if (htab->etab.dynobj == NULL)
1363 htab->etab.dynobj = abfd;
1364 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1365 return FALSE;
30667bf3
AM
1366 }
1367
9b52905e
NC
1368 if (r_type == R_PARISC_TLS_LDM21L
1369 || r_type == R_PARISC_TLS_LDM14R)
4dfe6ac6 1370 htab->tls_ldm_got.refcount += 1;
30667bf3
AM
1371 else
1372 {
9b52905e
NC
1373 if (hh != NULL)
1374 {
1375 hh->eh.got.refcount += 1;
1376 old_tls_type = hh->tls_type;
1377 }
1378 else
1379 {
1380 bfd_signed_vma *local_got_refcounts;
1381
1382 /* This is a global offset table entry for a local symbol. */
d45b7d74 1383 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
9b52905e 1384 if (local_got_refcounts == NULL)
d45b7d74 1385 return FALSE;
9b52905e
NC
1386 local_got_refcounts[r_symndx] += 1;
1387
1388 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1389 }
1390
1391 tls_type |= old_tls_type;
1392
1393 if (old_tls_type != tls_type)
1394 {
1395 if (hh != NULL)
1396 hh->tls_type = tls_type;
1397 else
1398 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1399 }
1400
30667bf3
AM
1401 }
1402 }
1403
1404 if (need_entry & NEED_PLT)
1405 {
1406 /* If we are creating a shared library, and this is a reloc
1407 against a weak symbol or a global symbol in a dynamic
1408 object, then we will be creating an import stub and a
1409 .plt entry for the symbol. Similarly, on a normal link
1410 to symbols defined in a dynamic object we'll need the
1411 import stub and a .plt entry. We don't know yet whether
1412 the symbol is defined or not, so make an entry anyway and
1413 clean up later in adjust_dynamic_symbol. */
1414 if ((sec->flags & SEC_ALLOC) != 0)
1415 {
875c0872 1416 if (hh != NULL)
30667bf3 1417 {
a63e02c7
DA
1418 hh->eh.needs_plt = 1;
1419 hh->eh.plt.refcount += 1;
74d1c347 1420
36605136
AM
1421 /* If this .plt entry is for a plabel, mark it so
1422 that adjust_dynamic_symbol will keep the entry
1423 even if it appears to be local. */
74d1c347 1424 if (need_entry & PLT_PLABEL)
875c0872 1425 hh->plabel = 1;
74d1c347
AM
1426 }
1427 else if (need_entry & PLT_PLABEL)
1428 {
3ac8354b 1429 bfd_signed_vma *local_got_refcounts;
68fb2e56 1430 bfd_signed_vma *local_plt_refcounts;
74d1c347 1431
d45b7d74 1432 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1433 if (local_got_refcounts == NULL)
d45b7d74 1434 return FALSE;
68fb2e56
AM
1435 local_plt_refcounts = (local_got_refcounts
1436 + symtab_hdr->sh_info);
ebe50bae 1437 local_plt_refcounts[r_symndx] += 1;
30667bf3 1438 }
30667bf3
AM
1439 }
1440 }
1441
98ceb8ce 1442 if (need_entry & NEED_DYNREL)
30667bf3
AM
1443 {
1444 /* Flag this symbol as having a non-got, non-plt reference
1445 so that we generate copy relocs if it turns out to be
1446 dynamic. */
875c0872 1447 if (hh != NULL && !info->shared)
a63e02c7 1448 hh->eh.non_got_ref = 1;
30667bf3
AM
1449
1450 /* If we are creating a shared library then we need to copy
1451 the reloc into the shared library. However, if we are
1452 linking with -Bsymbolic, we need only copy absolute
1453 relocs or relocs against symbols that are not defined in
1454 an object we are including in the link. PC- or DP- or
1455 DLT-relative relocs against any local sym or global sym
1456 with DEF_REGULAR set, can be discarded. At this point we
1457 have not seen all the input files, so it is possible that
1458 DEF_REGULAR is not set now but will be set later (it is
1459 never cleared). We account for that possibility below by
98ceb8ce 1460 storing information in the dyn_relocs field of the
30667bf3
AM
1461 hash table entry.
1462
1463 A similar situation to the -Bsymbolic case occurs when
1464 creating shared libraries and symbol visibility changes
1465 render the symbol local.
1466
1467 As it turns out, all the relocs we will be creating here
1468 are absolute, so we cannot remove them on -Bsymbolic
1469 links or visibility changes anyway. A STUB_REL reloc
1470 is absolute too, as in that case it is the reloc in the
1471 stub we will be creating, rather than copying the PCREL
56882138
AM
1472 reloc in the branch.
1473
1474 If on the other hand, we are creating an executable, we
1475 may need to keep relocations for symbols satisfied by a
1476 dynamic library if we manage to avoid copy relocs for the
1477 symbol. */
446f2863
AM
1478 if ((info->shared
1479 && (sec->flags & SEC_ALLOC) != 0
1480 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1481 || (hh != NULL
446f2863 1482 && (!info->symbolic
a63e02c7
DA
1483 || hh->eh.root.type == bfd_link_hash_defweak
1484 || !hh->eh.def_regular))))
4fc8051d
AM
1485 || (ELIMINATE_COPY_RELOCS
1486 && !info->shared
446f2863 1487 && (sec->flags & SEC_ALLOC) != 0
875c0872 1488 && hh != NULL
a63e02c7
DA
1489 && (hh->eh.root.type == bfd_link_hash_defweak
1490 || !hh->eh.def_regular)))
30667bf3 1491 {
875c0872
DA
1492 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1493 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1494
30667bf3
AM
1495 /* Create a reloc section in dynobj and make room for
1496 this reloc. */
98ceb8ce 1497 if (sreloc == NULL)
30667bf3 1498 {
a63e02c7
DA
1499 if (htab->etab.dynobj == NULL)
1500 htab->etab.dynobj = abfd;
3ac8354b 1501
83bac4b0
NC
1502 sreloc = _bfd_elf_make_dynamic_reloc_section
1503 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1504
98ceb8ce 1505 if (sreloc == NULL)
30667bf3 1506 {
83bac4b0
NC
1507 bfd_set_error (bfd_error_bad_value);
1508 return FALSE;
30667bf3 1509 }
30667bf3
AM
1510 }
1511
98ceb8ce
AM
1512 /* If this is a global symbol, we count the number of
1513 relocations we need for this symbol. */
875c0872 1514 if (hh != NULL)
30667bf3 1515 {
875c0872 1516 hdh_head = &hh->dyn_relocs;
ec338859
AM
1517 }
1518 else
1519 {
1520 /* Track dynamic relocs needed for local syms too.
1521 We really need local syms available to do this
1522 easily. Oh well. */
875c0872 1523 asection *sr;
6edfbbad 1524 void *vpp;
87d72d41 1525 Elf_Internal_Sym *isym;
6edfbbad 1526
87d72d41
AM
1527 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1528 abfd, r_symndx);
1529 if (isym == NULL)
b34976b6 1530 return FALSE;
30667bf3 1531
87d72d41
AM
1532 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1533 if (sr == NULL)
1534 sr = sec;
1535
6edfbbad
DJ
1536 vpp = &elf_section_data (sr)->local_dynrel;
1537 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1538 }
1539
875c0872
DA
1540 hdh_p = *hdh_head;
1541 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1542 {
a63e02c7 1543 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1544 if (hdh_p == NULL)
b34976b6 1545 return FALSE;
a63e02c7 1546 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1547 *hdh_head = hdh_p;
1548 hdh_p->sec = sec;
1549 hdh_p->count = 0;
98ceb8ce 1550#if RELATIVE_DYNRELOCS
875c0872 1551 hdh_p->relative_count = 0;
98ceb8ce 1552#endif
ec338859 1553 }
98ceb8ce 1554
875c0872 1555 hdh_p->count += 1;
98ceb8ce 1556#if RELATIVE_DYNRELOCS
ec338859 1557 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1558 hdh_p->relative_count += 1;
98ceb8ce 1559#endif
30667bf3
AM
1560 }
1561 }
1562 }
edd21aca 1563
b34976b6 1564 return TRUE;
edd21aca
AM
1565}
1566
30667bf3
AM
1567/* Return the section that should be marked against garbage collection
1568 for a given relocation. */
1569
1570static asection *
c39a58e6 1571elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1572 struct bfd_link_info *info,
875c0872
DA
1573 Elf_Internal_Rela *rela,
1574 struct elf_link_hash_entry *hh,
c39a58e6 1575 Elf_Internal_Sym *sym)
30667bf3 1576{
875c0872 1577 if (hh != NULL)
07adf181
AM
1578 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1579 {
1580 case R_PARISC_GNU_VTINHERIT:
1581 case R_PARISC_GNU_VTENTRY:
1582 return NULL;
1583 }
30667bf3 1584
07adf181 1585 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1586}
1587
30667bf3
AM
1588/* Update the got and plt entry reference counts for the section being
1589 removed. */
edd21aca 1590
b34976b6 1591static bfd_boolean
c39a58e6
AM
1592elf32_hppa_gc_sweep_hook (bfd *abfd,
1593 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1594 asection *sec,
1595 const Elf_Internal_Rela *relocs)
edd21aca 1596{
30667bf3 1597 Elf_Internal_Shdr *symtab_hdr;
875c0872 1598 struct elf_link_hash_entry **eh_syms;
30667bf3 1599 bfd_signed_vma *local_got_refcounts;
74d1c347 1600 bfd_signed_vma *local_plt_refcounts;
875c0872 1601 const Elf_Internal_Rela *rela, *relend;
4dfe6ac6 1602 struct elf32_hppa_link_hash_table *htab;
30667bf3 1603
7dda2462
TG
1604 if (info->relocatable)
1605 return TRUE;
1606
4dfe6ac6
NC
1607 htab = hppa_link_hash_table (info);
1608 if (htab == NULL)
1609 return FALSE;
1610
ec338859 1611 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1612
30667bf3 1613 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1614 eh_syms = elf_sym_hashes (abfd);
30667bf3 1615 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1616 local_plt_refcounts = local_got_refcounts;
1617 if (local_plt_refcounts != NULL)
1618 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1619
30667bf3 1620 relend = relocs + sec->reloc_count;
875c0872 1621 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1622 {
1623 unsigned long r_symndx;
1624 unsigned int r_type;
875c0872 1625 struct elf_link_hash_entry *eh = NULL;
26e41594 1626
875c0872 1627 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1628 if (r_symndx >= symtab_hdr->sh_info)
1629 {
875c0872
DA
1630 struct elf32_hppa_link_hash_entry *hh;
1631 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1632 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1633
875c0872
DA
1634 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1635 while (eh->root.type == bfd_link_hash_indirect
1636 || eh->root.type == bfd_link_hash_warning)
1637 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1638 hh = hppa_elf_hash_entry (eh);
26e41594 1639
a63e02c7 1640 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1641 if (hdh_p->sec == sec)
26e41594
AM
1642 {
1643 /* Everything must go for SEC. */
a63e02c7 1644 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1645 break;
1646 }
1647 }
1648
875c0872 1649 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1650 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1651
26e41594
AM
1652 switch (r_type)
1653 {
1654 case R_PARISC_DLTIND14F:
1655 case R_PARISC_DLTIND14R:
1656 case R_PARISC_DLTIND21L:
9b52905e
NC
1657 case R_PARISC_TLS_GD21L:
1658 case R_PARISC_TLS_GD14R:
1659 case R_PARISC_TLS_IE21L:
1660 case R_PARISC_TLS_IE14R:
875c0872 1661 if (eh != NULL)
26e41594 1662 {
875c0872
DA
1663 if (eh->got.refcount > 0)
1664 eh->got.refcount -= 1;
26e41594
AM
1665 }
1666 else if (local_got_refcounts != NULL)
1667 {
1668 if (local_got_refcounts[r_symndx] > 0)
1669 local_got_refcounts[r_symndx] -= 1;
1670 }
1671 break;
98ceb8ce 1672
9b52905e
NC
1673 case R_PARISC_TLS_LDM21L:
1674 case R_PARISC_TLS_LDM14R:
4dfe6ac6 1675 htab->tls_ldm_got.refcount -= 1;
9b52905e
NC
1676 break;
1677
26e41594
AM
1678 case R_PARISC_PCREL12F:
1679 case R_PARISC_PCREL17C:
1680 case R_PARISC_PCREL17F:
1681 case R_PARISC_PCREL22F:
875c0872 1682 if (eh != NULL)
26e41594 1683 {
875c0872
DA
1684 if (eh->plt.refcount > 0)
1685 eh->plt.refcount -= 1;
26e41594
AM
1686 }
1687 break;
1688
1689 case R_PARISC_PLABEL14R:
1690 case R_PARISC_PLABEL21L:
1691 case R_PARISC_PLABEL32:
875c0872 1692 if (eh != NULL)
26e41594 1693 {
875c0872
DA
1694 if (eh->plt.refcount > 0)
1695 eh->plt.refcount -= 1;
26e41594
AM
1696 }
1697 else if (local_plt_refcounts != NULL)
1698 {
1699 if (local_plt_refcounts[r_symndx] > 0)
1700 local_plt_refcounts[r_symndx] -= 1;
1701 }
1702 break;
1703
1704 default:
1705 break;
1706 }
1707 }
252b5132 1708
b34976b6 1709 return TRUE;
252b5132
RH
1710}
1711
edfc032f
AM
1712/* Support for core dump NOTE sections. */
1713
1714static bfd_boolean
1715elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1716{
1717 int offset;
1718 size_t size;
1719
1720 switch (note->descsz)
1721 {
1722 default:
1723 return FALSE;
1724
1725 case 396: /* Linux/hppa */
1726 /* pr_cursig */
1727 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1728
1729 /* pr_pid */
261b8d08 1730 elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1731
1732 /* pr_reg */
1733 offset = 72;
1734 size = 320;
1735
1736 break;
1737 }
1738
1739 /* Make a ".reg/999" section. */
1740 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1741 size, note->descpos + offset);
1742}
1743
1744static bfd_boolean
1745elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1746{
1747 switch (note->descsz)
1748 {
1749 default:
1750 return FALSE;
1751
1752 case 124: /* Linux/hppa elf_prpsinfo. */
1753 elf_tdata (abfd)->core_program
1754 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1755 elf_tdata (abfd)->core_command
1756 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1757 }
1758
1759 /* Note that for some reason, a spurious space is tacked
1760 onto the end of the args in some (at least one anyway)
1761 implementations, so strip it off if it exists. */
1762 {
1763 char *command = elf_tdata (abfd)->core_command;
1764 int n = strlen (command);
1765
1766 if (0 < n && command[n - 1] == ' ')
1767 command[n - 1] = '\0';
1768 }
1769
1770 return TRUE;
1771}
1772
74d1c347
AM
1773/* Our own version of hide_symbol, so that we can keep plt entries for
1774 plabels. */
1775
1776static void
c39a58e6 1777elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1778 struct elf_link_hash_entry *eh,
c39a58e6 1779 bfd_boolean force_local)
74d1c347 1780{
e5094212
AM
1781 if (force_local)
1782 {
875c0872
DA
1783 eh->forced_local = 1;
1784 if (eh->dynindx != -1)
e5094212 1785 {
875c0872 1786 eh->dynindx = -1;
e5094212 1787 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1788 eh->dynstr_index);
e5094212
AM
1789 }
1790 }
1791
9b52905e 1792 if (! hppa_elf_hash_entry (eh)->plabel)
74d1c347 1793 {
875c0872
DA
1794 eh->needs_plt = 0;
1795 eh->plt = elf_hash_table (info)->init_plt_refcount;
74d1c347
AM
1796 }
1797}
1798
30667bf3
AM
1799/* Adjust a symbol defined by a dynamic object and referenced by a
1800 regular object. The current definition is in some section of the
1801 dynamic object, but we're not including those sections. We have to
1802 change the definition to something the rest of the link can
1803 understand. */
252b5132 1804
b34976b6 1805static bfd_boolean
c39a58e6 1806elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1807 struct elf_link_hash_entry *eh)
252b5132 1808{
83c81bfe 1809 struct elf32_hppa_link_hash_table *htab;
875c0872 1810 asection *sec;
30667bf3
AM
1811
1812 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1813 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1814 if (eh->type == STT_FUNC
1815 || eh->needs_plt)
30667bf3 1816 {
875c0872
DA
1817 if (eh->plt.refcount <= 0
1818 || (eh->def_regular
1819 && eh->root.type != bfd_link_hash_defweak
1820 && ! hppa_elf_hash_entry (eh)->plabel
30667bf3
AM
1821 && (!info->shared || info->symbolic)))
1822 {
1823 /* The .plt entry is not needed when:
1824 a) Garbage collection has removed all references to the
1825 symbol, or
1826 b) We know for certain the symbol is defined in this
74d1c347
AM
1827 object, and it's not a weak definition, nor is the symbol
1828 used by a plabel relocation. Either this object is the
1829 application or we are doing a shared symbolic link. */
1830
875c0872
DA
1831 eh->plt.offset = (bfd_vma) -1;
1832 eh->needs_plt = 0;
30667bf3 1833 }
4dc86686 1834
b34976b6 1835 return TRUE;
30667bf3 1836 }
bbd7ec4a 1837 else
875c0872 1838 eh->plt.offset = (bfd_vma) -1;
edd21aca 1839
30667bf3
AM
1840 /* If this is a weak symbol, and there is a real definition, the
1841 processor independent code will have arranged for us to see the
1842 real definition first, and we can just use the same value. */
875c0872 1843 if (eh->u.weakdef != NULL)
edd21aca 1844 {
875c0872
DA
1845 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1846 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1847 abort ();
875c0872
DA
1848 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1849 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1850 if (ELIMINATE_COPY_RELOCS)
875c0872 1851 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1852 return TRUE;
30667bf3 1853 }
edd21aca 1854
30667bf3
AM
1855 /* This is a reference to a symbol defined by a dynamic object which
1856 is not a function. */
1857
1858 /* If we are creating a shared library, we must presume that the
1859 only references to the symbol are via the global offset table.
1860 For such cases we need not do anything here; the relocations will
1861 be handled correctly by relocate_section. */
1862 if (info->shared)
b34976b6 1863 return TRUE;
30667bf3
AM
1864
1865 /* If there are no references to this symbol that do not use the
1866 GOT, we don't need to generate a copy reloc. */
875c0872 1867 if (!eh->non_got_ref)
b34976b6 1868 return TRUE;
30667bf3 1869
4fc8051d 1870 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1871 {
875c0872
DA
1872 struct elf32_hppa_link_hash_entry *hh;
1873 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1874
875c0872 1875 hh = hppa_elf_hash_entry (eh);
a63e02c7 1876 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1877 {
875c0872
DA
1878 sec = hdh_p->sec->output_section;
1879 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1880 break;
1881 }
1882
1883 /* If we didn't find any dynamic relocs in read-only sections, then
1884 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1885 if (hdh_p == NULL)
4fc8051d 1886 {
875c0872 1887 eh->non_got_ref = 0;
4fc8051d
AM
1888 return TRUE;
1889 }
ebe50bae
AM
1890 }
1891
909272ee
AM
1892 if (eh->size == 0)
1893 {
1894 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1895 eh->root.root.string);
1896 return TRUE;
1897 }
1898
30667bf3
AM
1899 /* We must allocate the symbol in our .dynbss section, which will
1900 become part of the .bss section of the executable. There will be
1901 an entry for this symbol in the .dynsym section. The dynamic
1902 object will contain position independent code, so all references
1903 from the dynamic object to this symbol will go through the global
1904 offset table. The dynamic linker will use the .dynsym entry to
1905 determine the address it must put in the global offset table, so
1906 both the dynamic object and the regular object will refer to the
1907 same memory location for the variable. */
1908
3ac8354b 1909 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1910 if (htab == NULL)
1911 return FALSE;
30667bf3
AM
1912
1913 /* We must generate a COPY reloc to tell the dynamic linker to
1914 copy the initial value out of the dynamic object and into the
3ac8354b 1915 runtime process image. */
875c0872 1916 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0)
30667bf3 1917 {
eea6121a 1918 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1919 eh->needs_copy = 1;
edd21aca 1920 }
252b5132 1921
875c0872 1922 sec = htab->sdynbss;
edd21aca 1923
027297b7 1924 return _bfd_elf_adjust_dynamic_copy (eh, sec);
252b5132
RH
1925}
1926
e5ee5df1 1927/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1928 ie. plabel entries. */
a8d02d66 1929
b34976b6 1930static bfd_boolean
875c0872 1931allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1932{
1933 struct bfd_link_info *info;
1934 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1935 struct elf32_hppa_link_hash_entry *hh;
1936 asection *sec;
a8d02d66 1937
875c0872 1938 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1939 return TRUE;
a8d02d66 1940
875c0872 1941 info = (struct bfd_link_info *) inf;
9b52905e 1942 hh = hppa_elf_hash_entry (eh);
a8d02d66 1943 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1944 if (htab == NULL)
1945 return FALSE;
1946
a63e02c7 1947 if (htab->etab.dynamic_sections_created
875c0872 1948 && eh->plt.refcount > 0)
e5ee5df1
AM
1949 {
1950 /* Make sure this symbol is output as a dynamic symbol.
1951 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1952 if (eh->dynindx == -1
1953 && !eh->forced_local
1954 && eh->type != STT_PARISC_MILLI)
a8d02d66 1955 {
875c0872 1956 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1957 return FALSE;
e5ee5df1
AM
1958 }
1959
875c0872 1960 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1961 {
067fa4a6
AM
1962 /* Allocate these later. From this point on, h->plabel
1963 means that the plt entry is only used by a plabel.
1964 We'll be using a normal plt entry for this symbol, so
1965 clear the plabel indicator. */
875c0872
DA
1966
1967 hh->plabel = 0;
e5ee5df1 1968 }
875c0872 1969 else if (hh->plabel)
e5ee5df1
AM
1970 {
1971 /* Make an entry in the .plt section for plabel references
1972 that won't have a .plt entry for other reasons. */
875c0872
DA
1973 sec = htab->splt;
1974 eh->plt.offset = sec->size;
1975 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1976 }
1977 else
e5ee5df1
AM
1978 {
1979 /* No .plt entry needed. */
875c0872
DA
1980 eh->plt.offset = (bfd_vma) -1;
1981 eh->needs_plt = 0;
e5ee5df1
AM
1982 }
1983 }
1984 else
1985 {
875c0872
DA
1986 eh->plt.offset = (bfd_vma) -1;
1987 eh->needs_plt = 0;
a8d02d66
AM
1988 }
1989
b34976b6 1990 return TRUE;
a8d02d66
AM
1991}
1992
4dc86686
AM
1993/* Allocate space in .plt, .got and associated reloc sections for
1994 global syms. */
1995
b34976b6 1996static bfd_boolean
875c0872 1997allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1998{
1999 struct bfd_link_info *info;
83c81bfe 2000 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2001 asection *sec;
2002 struct elf32_hppa_link_hash_entry *hh;
2003 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2004
875c0872 2005 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2006 return TRUE;
73a74a62 2007
c39a58e6 2008 info = inf;
83c81bfe 2009 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2010 if (htab == NULL)
2011 return FALSE;
2012
875c0872
DA
2013 hh = hppa_elf_hash_entry (eh);
2014
a63e02c7 2015 if (htab->etab.dynamic_sections_created
875c0872
DA
2016 && eh->plt.offset != (bfd_vma) -1
2017 && !hh->plabel
2018 && eh->plt.refcount > 0)
4dc86686 2019 {
e5ee5df1 2020 /* Make an entry in the .plt section. */
875c0872
DA
2021 sec = htab->splt;
2022 eh->plt.offset = sec->size;
2023 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2024
e5ee5df1 2025 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2026 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2027 htab->need_plt_stub = 1;
4dc86686 2028 }
edd21aca 2029
875c0872 2030 if (eh->got.refcount > 0)
4dc86686 2031 {
446f2863
AM
2032 /* Make sure this symbol is output as a dynamic symbol.
2033 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2034 if (eh->dynindx == -1
2035 && !eh->forced_local
2036 && eh->type != STT_PARISC_MILLI)
446f2863 2037 {
875c0872 2038 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2039 return FALSE;
446f2863
AM
2040 }
2041
875c0872
DA
2042 sec = htab->sgot;
2043 eh->got.offset = sec->size;
2044 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2045 /* R_PARISC_TLS_GD* needs two GOT entries */
2046 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2047 sec->size += GOT_ENTRY_SIZE * 2;
2048 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2049 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2050 if (htab->etab.dynamic_sections_created
ce757d15 2051 && (info->shared
875c0872
DA
2052 || (eh->dynindx != -1
2053 && !eh->forced_local)))
ce757d15 2054 {
eea6121a 2055 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2056 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2057 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2058 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2059 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2060 }
4dc86686
AM
2061 }
2062 else
875c0872 2063 eh->got.offset = (bfd_vma) -1;
30667bf3 2064
875c0872 2065 if (hh->dyn_relocs == NULL)
b34976b6 2066 return TRUE;
30667bf3 2067
98ceb8ce
AM
2068 /* If this is a -Bsymbolic shared link, then we need to discard all
2069 space allocated for dynamic pc-relative relocs against symbols
2070 defined in a regular object. For the normal shared case, discard
2071 space for relocs that have become local due to symbol visibility
2072 changes. */
2073 if (info->shared)
446f2863 2074 {
98ceb8ce 2075#if RELATIVE_DYNRELOCS
875c0872 2076 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2077 {
875c0872 2078 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2079
875c0872 2080 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2081 {
875c0872
DA
2082 hdh_p->count -= hdh_p->relative_count;
2083 hdh_p->relative_count = 0;
2084 if (hdh_p->count == 0)
a63e02c7 2085 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2086 else
a63e02c7 2087 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2088 }
2089 }
2090#endif
4fc8051d
AM
2091
2092 /* Also discard relocs on undefined weak syms with non-default
2093 visibility. */
22d606e9 2094 if (hh->dyn_relocs != NULL
875c0872 2095 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2096 {
2097 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2098 hh->dyn_relocs = NULL;
2099
2100 /* Make sure undefined weak symbols are output as a dynamic
2101 symbol in PIEs. */
2102 else if (eh->dynindx == -1
2103 && !eh->forced_local)
2104 {
2105 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2106 return FALSE;
2107 }
2108 }
446f2863 2109 }
98ceb8ce 2110 else
30667bf3 2111 {
98ceb8ce
AM
2112 /* For the non-shared case, discard space for relocs against
2113 symbols which turn out to need copy relocs or are not
2114 dynamic. */
875c0872
DA
2115
2116 if (!eh->non_got_ref
4fc8051d 2117 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2118 && eh->def_dynamic
2119 && !eh->def_regular)
a63e02c7 2120 || (htab->etab.dynamic_sections_created
875c0872
DA
2121 && (eh->root.type == bfd_link_hash_undefweak
2122 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2123 {
2124 /* Make sure this symbol is output as a dynamic symbol.
2125 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2126 if (eh->dynindx == -1
2127 && !eh->forced_local
2128 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2129 {
875c0872 2130 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2131 return FALSE;
98ceb8ce
AM
2132 }
2133
2134 /* If that succeeded, we know we'll be keeping all the
2135 relocs. */
875c0872 2136 if (eh->dynindx != -1)
98ceb8ce
AM
2137 goto keep;
2138 }
446f2863 2139
875c0872 2140 hh->dyn_relocs = NULL;
b34976b6 2141 return TRUE;
98ceb8ce 2142
ec338859 2143 keep: ;
30667bf3 2144 }
30667bf3 2145
98ceb8ce 2146 /* Finally, allocate space. */
a63e02c7 2147 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2148 {
875c0872
DA
2149 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2150 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2151 }
30667bf3 2152
b34976b6 2153 return TRUE;
30667bf3 2154}
30667bf3 2155
d5c73c2f
AM
2156/* This function is called via elf_link_hash_traverse to force
2157 millicode symbols local so they do not end up as globals in the
2158 dynamic symbol table. We ought to be able to do this in
2159 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2160 for all dynamic symbols. Arguably, this is a bug in
2161 elf_adjust_dynamic_symbol. */
2162
b34976b6 2163static bfd_boolean
875c0872 2164clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2165 struct bfd_link_info *info)
d5c73c2f 2166{
875c0872
DA
2167 if (eh->type == STT_PARISC_MILLI
2168 && !eh->forced_local)
e0522e89 2169 {
875c0872 2170 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2171 }
b34976b6 2172 return TRUE;
d5c73c2f
AM
2173}
2174
98ceb8ce
AM
2175/* Find any dynamic relocs that apply to read-only sections. */
2176
b34976b6 2177static bfd_boolean
875c0872 2178readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2179{
875c0872
DA
2180 struct elf32_hppa_link_hash_entry *hh;
2181 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2182
875c0872 2183 hh = hppa_elf_hash_entry (eh);
a63e02c7 2184 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2185 {
875c0872 2186 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2187
875c0872 2188 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2189 {
c39a58e6 2190 struct bfd_link_info *info = inf;
98ceb8ce
AM
2191
2192 info->flags |= DF_TEXTREL;
2193
2194 /* Not an error, just cut short the traversal. */
b34976b6 2195 return FALSE;
98ceb8ce
AM
2196 }
2197 }
b34976b6 2198 return TRUE;
98ceb8ce
AM
2199}
2200
30667bf3
AM
2201/* Set the sizes of the dynamic sections. */
2202
b34976b6 2203static bfd_boolean
c39a58e6
AM
2204elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2205 struct bfd_link_info *info)
30667bf3 2206{
83c81bfe 2207 struct elf32_hppa_link_hash_table *htab;
30667bf3 2208 bfd *dynobj;
98ceb8ce 2209 bfd *ibfd;
875c0872 2210 asection *sec;
b34976b6 2211 bfd_boolean relocs;
30667bf3 2212
83c81bfe 2213 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2214 if (htab == NULL)
2215 return FALSE;
2216
a63e02c7 2217 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2218 if (dynobj == NULL)
2219 abort ();
30667bf3 2220
a63e02c7 2221 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2222 {
2223 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2224 if (info->executable)
30667bf3 2225 {
875c0872
DA
2226 sec = bfd_get_section_by_name (dynobj, ".interp");
2227 if (sec == NULL)
49e9d0d3 2228 abort ();
875c0872
DA
2229 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2230 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2231 }
74d1c347 2232
d5c73c2f 2233 /* Force millicode symbols local. */
a63e02c7 2234 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2235 clobber_millicode_symbols,
2236 info);
68fb2e56 2237 }
d5c73c2f 2238
98ceb8ce
AM
2239 /* Set up .got and .plt offsets for local syms, and space for local
2240 dynamic relocs. */
2241 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
68fb2e56
AM
2242 {
2243 bfd_signed_vma *local_got;
2244 bfd_signed_vma *end_local_got;
2245 bfd_signed_vma *local_plt;
2246 bfd_signed_vma *end_local_plt;
2247 bfd_size_type locsymcount;
2248 Elf_Internal_Shdr *symtab_hdr;
2249 asection *srel;
9b52905e 2250 char *local_tls_type;
74d1c347 2251
98ceb8ce 2252 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2253 continue;
4dc86686 2254
875c0872 2255 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2256 {
875c0872 2257 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2258
875c0872
DA
2259 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2260 elf_section_data (sec)->local_dynrel);
2261 hdh_p != NULL;
a63e02c7 2262 hdh_p = hdh_p->hdh_next)
98ceb8ce 2263 {
875c0872
DA
2264 if (!bfd_is_abs_section (hdh_p->sec)
2265 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2266 {
2267 /* Input section has been discarded, either because
2268 it is a copy of a linkonce section or due to
2269 linker script /DISCARD/, so we'll be discarding
2270 the relocs too. */
2271 }
875c0872 2272 else if (hdh_p->count != 0)
ec338859 2273 {
875c0872
DA
2274 srel = elf_section_data (hdh_p->sec)->sreloc;
2275 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2276 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2277 info->flags |= DF_TEXTREL;
ec338859 2278 }
98ceb8ce
AM
2279 }
2280 }
2281
2282 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2283 if (!local_got)
2284 continue;
74d1c347 2285
98ceb8ce 2286 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2287 locsymcount = symtab_hdr->sh_info;
2288 end_local_got = local_got + locsymcount;
9b52905e 2289 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2290 sec = htab->sgot;
83c81bfe 2291 srel = htab->srelgot;
68fb2e56
AM
2292 for (; local_got < end_local_got; ++local_got)
2293 {
2294 if (*local_got > 0)
4dc86686 2295 {
875c0872
DA
2296 *local_got = sec->size;
2297 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2298 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2299 sec->size += 2 * GOT_ENTRY_SIZE;
2300 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2301 sec->size += GOT_ENTRY_SIZE;
875c0872 2302 if (info->shared)
9b52905e
NC
2303 {
2304 srel->size += sizeof (Elf32_External_Rela);
2305 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2306 srel->size += 2 * sizeof (Elf32_External_Rela);
2307 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2308 srel->size += sizeof (Elf32_External_Rela);
2309 }
4dc86686 2310 }
68fb2e56
AM
2311 else
2312 *local_got = (bfd_vma) -1;
9b52905e
NC
2313
2314 ++local_tls_type;
68fb2e56 2315 }
74d1c347 2316
68fb2e56
AM
2317 local_plt = end_local_got;
2318 end_local_plt = local_plt + locsymcount;
a63e02c7 2319 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2320 {
2321 /* Won't be used, but be safe. */
2322 for (; local_plt < end_local_plt; ++local_plt)
2323 *local_plt = (bfd_vma) -1;
2324 }
2325 else
2326 {
875c0872 2327 sec = htab->splt;
83c81bfe 2328 srel = htab->srelplt;
74d1c347
AM
2329 for (; local_plt < end_local_plt; ++local_plt)
2330 {
2331 if (*local_plt > 0)
2332 {
875c0872
DA
2333 *local_plt = sec->size;
2334 sec->size += PLT_ENTRY_SIZE;
74d1c347 2335 if (info->shared)
eea6121a 2336 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2337 }
2338 else
2339 *local_plt = (bfd_vma) -1;
2340 }
2341 }
30667bf3 2342 }
9b52905e
NC
2343
2344 if (htab->tls_ldm_got.refcount > 0)
2345 {
2346 /* Allocate 2 got entries and 1 dynamic reloc for
2347 R_PARISC_TLS_DTPMOD32 relocs. */
2348 htab->tls_ldm_got.offset = htab->sgot->size;
2349 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2350 htab->srelgot->size += sizeof (Elf32_External_Rela);
2351 }
2352 else
2353 htab->tls_ldm_got.offset = -1;
30667bf3 2354
e5ee5df1
AM
2355 /* Do all the .plt entries without relocs first. The dynamic linker
2356 uses the last .plt reloc to find the end of the .plt (and hence
2357 the start of the .got) for lazy linking. */
a63e02c7 2358 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2359
98ceb8ce
AM
2360 /* Allocate global sym .plt and .got entries, and space for global
2361 sym dynamic relocs. */
a63e02c7 2362 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2363
2364 /* The check_relocs and adjust_dynamic_symbol entry points have
2365 determined the sizes of the various dynamic sections. Allocate
2366 memory for them. */
b34976b6 2367 relocs = FALSE;
875c0872 2368 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2369 {
875c0872 2370 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2371 continue;
2372
875c0872 2373 if (sec == htab->splt)
68fb2e56 2374 {
83c81bfe 2375 if (htab->need_plt_stub)
68fb2e56
AM
2376 {
2377 /* Make space for the plt stub at the end of the .plt
2378 section. We want this stub right at the end, up
2379 against the .got section. */
83c81bfe 2380 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2381 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2382 bfd_size_type mask;
30667bf3 2383
68fb2e56 2384 if (gotalign > pltalign)
875c0872 2385 bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2386 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2387 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2388 }
2389 }
c456f082
AM
2390 else if (sec == htab->sgot
2391 || sec == htab->sdynbss)
68fb2e56 2392 ;
0112cd26 2393 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2394 {
875c0872 2395 if (sec->size != 0)
30667bf3 2396 {
4e12ff7f
AM
2397 /* Remember whether there are any reloc sections other
2398 than .rela.plt. */
875c0872 2399 if (sec != htab->srelplt)
b34976b6 2400 relocs = TRUE;
47d89dba 2401
30667bf3
AM
2402 /* We use the reloc_count field as a counter if we need
2403 to copy relocs into the output file. */
875c0872 2404 sec->reloc_count = 0;
30667bf3
AM
2405 }
2406 }
30667bf3
AM
2407 else
2408 {
2409 /* It's not one of our sections, so don't allocate space. */
2410 continue;
2411 }
2412
875c0872 2413 if (sec->size == 0)
30667bf3
AM
2414 {
2415 /* If we don't need this section, strip it from the
2416 output file. This is mostly to handle .rela.bss and
2417 .rela.plt. We must create both sections in
2418 create_dynamic_sections, because they must be created
2419 before the linker maps input sections to output
2420 sections. The linker does that before
2421 adjust_dynamic_symbol is called, and it is that
2422 function which decides whether anything needs to go
2423 into these sections. */
875c0872 2424 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2425 continue;
2426 }
2427
c456f082
AM
2428 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2429 continue;
2430
30667bf3
AM
2431 /* Allocate memory for the section contents. Zero it, because
2432 we may not fill in all the reloc sections. */
875c0872 2433 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2434 if (sec->contents == NULL)
b34976b6 2435 return FALSE;
30667bf3
AM
2436 }
2437
a63e02c7 2438 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2439 {
2440 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2441 actually has nothing to do with the PLT, it is how we
2442 communicate the LTP value of a load module to the dynamic
2443 linker. */
dc810e39 2444#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2445 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2446
2447 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2448 return FALSE;
30667bf3
AM
2449
2450 /* Add some entries to the .dynamic section. We fill in the
2451 values later, in elf32_hppa_finish_dynamic_sections, but we
2452 must add the entries now so that we get the correct size for
2453 the .dynamic section. The DT_DEBUG entry is filled in by the
2454 dynamic linker and used by the debugger. */
3c27d551 2455 if (info->executable)
30667bf3 2456 {
dc810e39 2457 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2458 return FALSE;
30667bf3
AM
2459 }
2460
eea6121a 2461 if (htab->srelplt->size != 0)
30667bf3 2462 {
dc810e39
AM
2463 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2464 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2465 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2466 return FALSE;
30667bf3
AM
2467 }
2468
2469 if (relocs)
2470 {
dc810e39
AM
2471 if (!add_dynamic_entry (DT_RELA, 0)
2472 || !add_dynamic_entry (DT_RELASZ, 0)
2473 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2474 return FALSE;
30667bf3 2475
98ceb8ce
AM
2476 /* If any dynamic relocs apply to a read-only section,
2477 then we need a DT_TEXTREL entry. */
248866a8 2478 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2479 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2480
2481 if ((info->flags & DF_TEXTREL) != 0)
2482 {
2483 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2484 return FALSE;
98ceb8ce 2485 }
30667bf3
AM
2486 }
2487 }
dc810e39 2488#undef add_dynamic_entry
30667bf3 2489
b34976b6 2490 return TRUE;
30667bf3
AM
2491}
2492
30667bf3
AM
2493/* External entry points for sizing and building linker stubs. */
2494
b4655ea9
AM
2495/* Set up various things so that we can make a list of input sections
2496 for each output section included in the link. Returns -1 on error,
cedb70c5 2497 0 when no stubs will be needed, and 1 on success. */
30667bf3 2498
b4655ea9 2499int
c39a58e6 2500elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2501{
2502 bfd *input_bfd;
b4655ea9
AM
2503 unsigned int bfd_count;
2504 int top_id, top_index;
30667bf3 2505 asection *section;
25f72752 2506 asection **input_list, **list;
dc810e39 2507 bfd_size_type amt;
b4655ea9 2508 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2509
4dfe6ac6
NC
2510 if (htab == NULL)
2511 return -1;
2512
1badb539
AM
2513 /* Count the number of input BFDs and find the top input section id. */
2514 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2515 input_bfd != NULL;
2516 input_bfd = input_bfd->link_next)
2517 {
2518 bfd_count += 1;
25f72752
AM
2519 for (section = input_bfd->sections;
2520 section != NULL;
2521 section = section->next)
2522 {
2523 if (top_id < section->id)
2524 top_id = section->id;
2525 }
30667bf3 2526 }
b4655ea9 2527 htab->bfd_count = bfd_count;
30667bf3 2528
dc810e39 2529 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2530 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2531 if (htab->stub_group == NULL)
b4655ea9 2532 return -1;
1badb539 2533
b4655ea9 2534 /* We can't use output_bfd->section_count here to find the top output
1badb539 2535 section index as some sections may have been removed, and
8423293d 2536 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2537 for (section = output_bfd->sections, top_index = 0;
2538 section != NULL;
2539 section = section->next)
2540 {
2541 if (top_index < section->index)
2542 top_index = section->index;
2543 }
2544
b4655ea9 2545 htab->top_index = top_index;
dc810e39 2546 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2547 input_list = bfd_malloc (amt);
b4655ea9 2548 htab->input_list = input_list;
25f72752 2549 if (input_list == NULL)
b4655ea9 2550 return -1;
25f72752 2551
1badb539
AM
2552 /* For sections we aren't interested in, mark their entries with a
2553 value we can check later. */
2554 list = input_list + top_index;
2555 do
2556 *list = bfd_abs_section_ptr;
2557 while (list-- != input_list);
2558
2559 for (section = output_bfd->sections;
2560 section != NULL;
2561 section = section->next)
2562 {
47d89dba 2563 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2564 input_list[section->index] = NULL;
2565 }
2566
b4655ea9
AM
2567 return 1;
2568}
2569
2570/* The linker repeatedly calls this function for each input section,
2571 in the order that input sections are linked into output sections.
2572 Build lists of input sections to determine groupings between which
2573 we may insert linker stubs. */
2574
2575void
c39a58e6 2576elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2577{
2578 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2579
4dfe6ac6
NC
2580 if (htab == NULL)
2581 return;
2582
b4655ea9 2583 if (isec->output_section->index <= htab->top_index)
25f72752 2584 {
b4655ea9
AM
2585 asection **list = htab->input_list + isec->output_section->index;
2586 if (*list != bfd_abs_section_ptr)
25f72752 2587 {
b4655ea9 2588 /* Steal the link_sec pointer for our list. */
83c81bfe 2589#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2590 /* This happens to make the list in reverse order,
2591 which is what we want. */
2592 PREV_SEC (isec) = *list;
2593 *list = isec;
25f72752
AM
2594 }
2595 }
b4655ea9 2596}
25f72752 2597
b4655ea9
AM
2598/* See whether we can group stub sections together. Grouping stub
2599 sections may result in fewer stubs. More importantly, we need to
2600 put all .init* and .fini* stubs at the beginning of the .init or
2601 .fini output sections respectively, because glibc splits the
2602 _init and _fini functions into multiple parts. Putting a stub in
2603 the middle of a function is not a good idea. */
2604
2605static void
c39a58e6
AM
2606group_sections (struct elf32_hppa_link_hash_table *htab,
2607 bfd_size_type stub_group_size,
2608 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2609{
2610 asection **list = htab->input_list + htab->top_index;
1badb539 2611 do
25f72752
AM
2612 {
2613 asection *tail = *list;
1badb539
AM
2614 if (tail == bfd_abs_section_ptr)
2615 continue;
25f72752
AM
2616 while (tail != NULL)
2617 {
2618 asection *curr;
2619 asection *prev;
2620 bfd_size_type total;
00b28bb0 2621 bfd_boolean big_sec;
25f72752
AM
2622
2623 curr = tail;
eea6121a 2624 total = tail->size;
00b28bb0
AM
2625 big_sec = total >= stub_group_size;
2626
25f72752
AM
2627 while ((prev = PREV_SEC (curr)) != NULL
2628 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2629 < stub_group_size))
25f72752
AM
2630 curr = prev;
2631
2632 /* OK, the size from the start of CURR to the end is less
a248e267 2633 than 240000 bytes and thus can be handled by one stub
25f72752 2634 section. (or the tail section is itself larger than
a248e267 2635 240000 bytes, in which case we may be toast.)
25f72752
AM
2636 We should really be keeping track of the total size of
2637 stubs added here, as stubs contribute to the final output
2638 section size. That's a little tricky, and this way will
a248e267
AM
2639 only break if stubs added total more than 22144 bytes, or
2640 2768 long branch stubs. It seems unlikely for more than
2641 2768 different functions to be called, especially from
2642 code only 240000 bytes long. This limit used to be
2643 250000, but c++ code tends to generate lots of little
2644 functions, and sometimes violated the assumption. */
25f72752
AM
2645 do
2646 {
2647 prev = PREV_SEC (tail);
2648 /* Set up this stub group. */
83c81bfe 2649 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2650 }
2651 while (tail != curr && (tail = prev) != NULL);
2652
a248e267 2653 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2654 bytes before the stub section can be handled by it too.
2655 Don't do this if we have a really large section after the
2656 stubs, as adding more stubs increases the chance that
2657 branches may not reach into the stub section. */
2658 if (!stubs_always_before_branch && !big_sec)
25f72752 2659 {
47d89dba
AM
2660 total = 0;
2661 while (prev != NULL
2662 && ((total += tail->output_offset - prev->output_offset)
2663 < stub_group_size))
2664 {
2665 tail = prev;
2666 prev = PREV_SEC (tail);
83c81bfe 2667 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2668 }
25f72752
AM
2669 }
2670 tail = prev;
2671 }
2672 }
b4655ea9
AM
2673 while (list-- != htab->input_list);
2674 free (htab->input_list);
1badb539 2675#undef PREV_SEC
b4655ea9
AM
2676}
2677
2678/* Read in all local syms for all input bfds, and create hash entries
2679 for export stubs if we are building a multi-subspace shared lib.
2680 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2681
2682static int
c39a58e6 2683get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2684{
2685 unsigned int bfd_indx;
2686 Elf_Internal_Sym *local_syms, **all_local_syms;
2687 int stub_changed = 0;
2688 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2689
4dfe6ac6
NC
2690 if (htab == NULL)
2691 return -1;
2692
30667bf3
AM
2693 /* We want to read in symbol extension records only once. To do this
2694 we need to read in the local symbols in parallel and save them for
2695 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2696 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2697 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2698 htab->all_local_syms = all_local_syms;
30667bf3 2699 if (all_local_syms == NULL)
b4655ea9 2700 return -1;
30667bf3
AM
2701
2702 /* Walk over all the input BFDs, swapping in local symbols.
2703 If we are creating a shared library, create hash entries for the
2704 export stubs. */
b4655ea9 2705 for (bfd_indx = 0;
30667bf3 2706 input_bfd != NULL;
25f72752 2707 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2708 {
2709 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2710
252b5132
RH
2711 /* We'll need the symbol table in a second. */
2712 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2713 if (symtab_hdr->sh_info == 0)
2714 continue;
2715
6cdc0ccc
AM
2716 /* We need an array of the local symbols attached to the input bfd. */
2717 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2718 if (local_syms == NULL)
edd21aca 2719 {
6cdc0ccc
AM
2720 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2721 symtab_hdr->sh_info, 0,
2722 NULL, NULL, NULL);
2723 /* Cache them for elf_link_input_bfd. */
2724 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2725 }
6cdc0ccc
AM
2726 if (local_syms == NULL)
2727 return -1;
edd21aca 2728
6cdc0ccc 2729 all_local_syms[bfd_indx] = local_syms;
edd21aca 2730
83c81bfe 2731 if (info->shared && htab->multi_subspace)
30667bf3 2732 {
875c0872
DA
2733 struct elf_link_hash_entry **eh_syms;
2734 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2735 unsigned int symcount;
2736
2737 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2738 - symtab_hdr->sh_info);
875c0872
DA
2739 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2740 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2741
2742 /* Look through the global syms for functions; We need to
2743 build export stubs for all globally visible functions. */
875c0872 2744 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2745 {
875c0872 2746 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2747
875c0872 2748 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2749
a63e02c7
DA
2750 while (hh->eh.root.type == bfd_link_hash_indirect
2751 || hh->eh.root.type == bfd_link_hash_warning)
2752 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2753
2754 /* At this point in the link, undefined syms have been
2755 resolved, so we need to check that the symbol was
2756 defined in this BFD. */
a63e02c7
DA
2757 if ((hh->eh.root.type == bfd_link_hash_defined
2758 || hh->eh.root.type == bfd_link_hash_defweak)
2759 && hh->eh.type == STT_FUNC
2760 && hh->eh.root.u.def.section->output_section != NULL
2761 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2762 == output_bfd)
a63e02c7
DA
2763 && hh->eh.root.u.def.section->owner == input_bfd
2764 && hh->eh.def_regular
2765 && !hh->eh.forced_local
2766 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2767 {
2768 asection *sec;
2769 const char *stub_name;
875c0872 2770 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2771
a63e02c7 2772 sec = hh->eh.root.u.def.section;
9b52905e 2773 stub_name = hh_name (hh);
a63e02c7 2774 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2775 stub_name,
b34976b6 2776 FALSE, FALSE);
875c0872 2777 if (hsh == NULL)
30667bf3 2778 {
875c0872
DA
2779 hsh = hppa_add_stub (stub_name, sec, htab);
2780 if (!hsh)
b4655ea9 2781 return -1;
30667bf3 2782
a63e02c7
DA
2783 hsh->target_value = hh->eh.root.u.def.value;
2784 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2785 hsh->stub_type = hppa_stub_export;
a63e02c7 2786 hsh->hh = hh;
30667bf3
AM
2787 stub_changed = 1;
2788 }
2789 else
2790 {
d003868e
AM
2791 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2792 input_bfd,
8f615d07 2793 stub_name);
30667bf3
AM
2794 }
2795 }
2796 }
30667bf3
AM
2797 }
2798 }
edd21aca 2799
b4655ea9
AM
2800 return stub_changed;
2801}
2802
2803/* Determine and set the size of the stub section for a final link.
2804
2805 The basic idea here is to examine all the relocations looking for
2806 PC-relative calls to a target that is unreachable with a "bl"
2807 instruction. */
2808
b34976b6 2809bfd_boolean
c39a58e6
AM
2810elf32_hppa_size_stubs
2811 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2812 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2813 asection * (*add_stub_section) (const char *, asection *),
2814 void (*layout_sections_again) (void))
b4655ea9
AM
2815{
2816 bfd_size_type stub_group_size;
b34976b6
AM
2817 bfd_boolean stubs_always_before_branch;
2818 bfd_boolean stub_changed;
b4655ea9
AM
2819 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2820
4dfe6ac6
NC
2821 if (htab == NULL)
2822 return FALSE;
2823
b4655ea9
AM
2824 /* Stash our params away. */
2825 htab->stub_bfd = stub_bfd;
2826 htab->multi_subspace = multi_subspace;
2827 htab->add_stub_section = add_stub_section;
2828 htab->layout_sections_again = layout_sections_again;
2829 stubs_always_before_branch = group_size < 0;
2830 if (group_size < 0)
2831 stub_group_size = -group_size;
2832 else
2833 stub_group_size = group_size;
2834 if (stub_group_size == 1)
2835 {
2836 /* Default values. */
acc990f2
AM
2837 if (stubs_always_before_branch)
2838 {
2839 stub_group_size = 7680000;
2840 if (htab->has_17bit_branch || htab->multi_subspace)
2841 stub_group_size = 240000;
2842 if (htab->has_12bit_branch)
2843 stub_group_size = 7500;
2844 }
2845 else
2846 {
2847 stub_group_size = 6971392;
2848 if (htab->has_17bit_branch || htab->multi_subspace)
2849 stub_group_size = 217856;
2850 if (htab->has_12bit_branch)
2851 stub_group_size = 6808;
2852 }
b4655ea9
AM
2853 }
2854
2855 group_sections (htab, stub_group_size, stubs_always_before_branch);
2856
2857 switch (get_local_syms (output_bfd, info->input_bfds, info))
2858 {
2859 default:
2860 if (htab->all_local_syms)
2861 goto error_ret_free_local;
b34976b6 2862 return FALSE;
b4655ea9
AM
2863
2864 case 0:
b34976b6 2865 stub_changed = FALSE;
b4655ea9
AM
2866 break;
2867
2868 case 1:
b34976b6 2869 stub_changed = TRUE;
b4655ea9
AM
2870 break;
2871 }
2872
edd21aca
AM
2873 while (1)
2874 {
b4655ea9
AM
2875 bfd *input_bfd;
2876 unsigned int bfd_indx;
30667bf3
AM
2877 asection *stub_sec;
2878
25f72752 2879 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2880 input_bfd != NULL;
25f72752 2881 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2882 {
2883 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2884 asection *section;
2885 Elf_Internal_Sym *local_syms;
30667bf3
AM
2886
2887 /* We'll need the symbol table in a second. */
2888 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2889 if (symtab_hdr->sh_info == 0)
2890 continue;
2891
b4655ea9 2892 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2893
2894 /* Walk over each section attached to the input bfd. */
2895 for (section = input_bfd->sections;
2896 section != NULL;
25f72752 2897 section = section->next)
30667bf3 2898 {
30667bf3
AM
2899 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2900
2901 /* If there aren't any relocs, then there's nothing more
2902 to do. */
2903 if ((section->flags & SEC_RELOC) == 0
2904 || section->reloc_count == 0)
2905 continue;
2906
25f72752
AM
2907 /* If this section is a link-once section that will be
2908 discarded, then don't create any stubs. */
2909 if (section->output_section == NULL
2910 || section->output_section->owner != output_bfd)
2911 continue;
2912
1e2f5b6e
AM
2913 /* Get the relocs. */
2914 internal_relocs
c39a58e6 2915 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2916 info->keep_memory);
30667bf3 2917 if (internal_relocs == NULL)
1e2f5b6e 2918 goto error_ret_free_local;
30667bf3
AM
2919
2920 /* Now examine each relocation. */
2921 irela = internal_relocs;
2922 irelaend = irela + section->reloc_count;
2923 for (; irela < irelaend; irela++)
2924 {
2925 unsigned int r_type, r_indx;
2926 enum elf32_hppa_stub_type stub_type;
875c0872 2927 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2928 asection *sym_sec;
2929 bfd_vma sym_value;
2930 bfd_vma destination;
875c0872 2931 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2932 char *stub_name;
25f72752 2933 const asection *id_sec;
30667bf3
AM
2934
2935 r_type = ELF32_R_TYPE (irela->r_info);
2936 r_indx = ELF32_R_SYM (irela->r_info);
2937
2938 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2939 {
2940 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2941 error_ret_free_internal:
2942 if (elf_section_data (section)->relocs == NULL)
2943 free (internal_relocs);
2944 goto error_ret_free_local;
30667bf3
AM
2945 }
2946
2947 /* Only look for stubs on call instructions. */
2948 if (r_type != (unsigned int) R_PARISC_PCREL12F
2949 && r_type != (unsigned int) R_PARISC_PCREL17F
2950 && r_type != (unsigned int) R_PARISC_PCREL22F)
2951 continue;
2952
2953 /* Now determine the call target, its name, value,
2954 section. */
2955 sym_sec = NULL;
2956 sym_value = 0;
2957 destination = 0;
875c0872 2958 hh = NULL;
30667bf3
AM
2959 if (r_indx < symtab_hdr->sh_info)
2960 {
2961 /* It's a local symbol. */
2962 Elf_Internal_Sym *sym;
2963 Elf_Internal_Shdr *hdr;
4fbb74a6 2964 unsigned int shndx;
30667bf3
AM
2965
2966 sym = local_syms + r_indx;
30667bf3
AM
2967 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2968 sym_value = sym->st_value;
4fbb74a6
AM
2969 shndx = sym->st_shndx;
2970 if (shndx < elf_numsections (input_bfd))
2971 {
2972 hdr = elf_elfsections (input_bfd)[shndx];
2973 sym_sec = hdr->bfd_section;
2974 destination = (sym_value + irela->r_addend
2975 + sym_sec->output_offset
2976 + sym_sec->output_section->vma);
2977 }
30667bf3
AM
2978 }
2979 else
2980 {
2981 /* It's an external symbol. */
2982 int e_indx;
2983
2984 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2985 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2986
a63e02c7
DA
2987 while (hh->eh.root.type == bfd_link_hash_indirect
2988 || hh->eh.root.type == bfd_link_hash_warning)
2989 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2990
a63e02c7
DA
2991 if (hh->eh.root.type == bfd_link_hash_defined
2992 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2993 {
a63e02c7
DA
2994 sym_sec = hh->eh.root.u.def.section;
2995 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2996 if (sym_sec->output_section != NULL)
2997 destination = (sym_value + irela->r_addend
2998 + sym_sec->output_offset
2999 + sym_sec->output_section->vma);
3000 }
a63e02c7 3001 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
3002 {
3003 if (! info->shared)
3004 continue;
3005 }
a63e02c7 3006 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 3007 {
59c2e50f 3008 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 3009 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3010 == STV_DEFAULT)
a63e02c7 3011 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3012 continue;
3013 }
30667bf3
AM
3014 else
3015 {
3016 bfd_set_error (bfd_error_bad_value);
3017 goto error_ret_free_internal;
3018 }
3019 }
3020
3021 /* Determine what (if any) linker stub is needed. */
875c0872 3022 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3023 destination, info);
30667bf3
AM
3024 if (stub_type == hppa_stub_none)
3025 continue;
3026
25f72752 3027 /* Support for grouping stub sections. */
83c81bfe 3028 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3029
30667bf3 3030 /* Get the name of this stub. */
875c0872 3031 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3032 if (!stub_name)
3033 goto error_ret_free_internal;
3034
a63e02c7 3035 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3036 stub_name,
b34976b6 3037 FALSE, FALSE);
875c0872 3038 if (hsh != NULL)
30667bf3
AM
3039 {
3040 /* The proper stub has already been created. */
3041 free (stub_name);
3042 continue;
3043 }
3044
875c0872
DA
3045 hsh = hppa_add_stub (stub_name, section, htab);
3046 if (hsh == NULL)
30667bf3
AM
3047 {
3048 free (stub_name);
1e2f5b6e 3049 goto error_ret_free_internal;
30667bf3
AM
3050 }
3051
875c0872
DA
3052 hsh->target_value = sym_value;
3053 hsh->target_section = sym_sec;
3054 hsh->stub_type = stub_type;
30667bf3
AM
3055 if (info->shared)
3056 {
3057 if (stub_type == hppa_stub_import)
875c0872 3058 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3059 else if (stub_type == hppa_stub_long_branch)
875c0872 3060 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3061 }
a63e02c7 3062 hsh->hh = hh;
b34976b6 3063 stub_changed = TRUE;
30667bf3
AM
3064 }
3065
3066 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3067 if (elf_section_data (section)->relocs == NULL)
3068 free (internal_relocs);
30667bf3
AM
3069 }
3070 }
3071
3072 if (!stub_changed)
3073 break;
3074
3075 /* OK, we've added some stubs. Find out the new size of the
3076 stub sections. */
83c81bfe 3077 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3078 stub_sec != NULL;
3079 stub_sec = stub_sec->next)
eea6121a 3080 stub_sec->size = 0;
74d1c347 3081
a63e02c7 3082 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3083
30667bf3 3084 /* Ask the linker to do its stuff. */
83c81bfe 3085 (*htab->layout_sections_again) ();
b34976b6 3086 stub_changed = FALSE;
30667bf3
AM
3087 }
3088
6cdc0ccc 3089 free (htab->all_local_syms);
b34976b6 3090 return TRUE;
30667bf3
AM
3091
3092 error_ret_free_local:
b4655ea9 3093 free (htab->all_local_syms);
b34976b6 3094 return FALSE;
30667bf3
AM
3095}
3096
30667bf3
AM
3097/* For a final link, this function is called after we have sized the
3098 stubs to provide a value for __gp. */
3099
b34976b6 3100bfd_boolean
c39a58e6 3101elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3102{
b4655ea9
AM
3103 struct bfd_link_hash_entry *h;
3104 asection *sec = NULL;
3105 bfd_vma gp_val = 0;
83c81bfe 3106 struct elf32_hppa_link_hash_table *htab;
30667bf3 3107
83c81bfe 3108 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3109 if (htab == NULL)
3110 return FALSE;
3111
a63e02c7 3112 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3113
df8634e3 3114 if (h != NULL
b4655ea9
AM
3115 && (h->type == bfd_link_hash_defined
3116 || h->type == bfd_link_hash_defweak))
30667bf3 3117 {
b4655ea9
AM
3118 gp_val = h->u.def.value;
3119 sec = h->u.def.section;
30667bf3
AM
3120 }
3121 else
3122 {
0eddce27
AM
3123 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3124 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3125
74d1c347
AM
3126 /* Choose to point our LTP at, in this order, one of .plt, .got,
3127 or .data, if these sections exist. In the case of choosing
3128 .plt try to make the LTP ideal for addressing anywhere in the
3129 .plt or .got with a 14 bit signed offset. Typically, the end
3130 of the .plt is the start of the .got, so choose .plt + 0x2000
3131 if either the .plt or .got is larger than 0x2000. If both
3132 the .plt and .got are smaller than 0x2000, choose the end of
3133 the .plt section. */
225247f0
JT
3134 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3135 ? NULL : splt;
74d1c347 3136 if (sec != NULL)
30667bf3 3137 {
eea6121a
AM
3138 gp_val = sec->size;
3139 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3140 {
3141 gp_val = 0x2000;
3142 }
3143 }
3144 else
3145 {
b4655ea9 3146 sec = sgot;
74d1c347
AM
3147 if (sec != NULL)
3148 {
225247f0
JT
3149 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3150 {
3151 /* We know we don't have a .plt. If .got is large,
3152 offset our LTP. */
3153 if (sec->size > 0x2000)
3154 gp_val = 0x2000;
3155 }
74d1c347
AM
3156 }
3157 else
3158 {
3159 /* No .plt or .got. Who cares what the LTP is? */
3160 sec = bfd_get_section_by_name (abfd, ".data");
3161 }
30667bf3 3162 }
df8634e3
AM
3163
3164 if (h != NULL)
3165 {
b4655ea9
AM
3166 h->type = bfd_link_hash_defined;
3167 h->u.def.value = gp_val;
df8634e3 3168 if (sec != NULL)
b4655ea9 3169 h->u.def.section = sec;
df8634e3 3170 else
b4655ea9 3171 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3172 }
30667bf3
AM
3173 }
3174
b32b5d6e 3175 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3176 gp_val += sec->output_section->vma + sec->output_offset;
3177
3178 elf_gp (abfd) = gp_val;
b34976b6 3179 return TRUE;
30667bf3
AM
3180}
3181
30667bf3
AM
3182/* Build all the stubs associated with the current output file. The
3183 stubs are kept in a hash table attached to the main linker hash
3184 table. We also set up the .plt entries for statically linked PIC
3185 functions here. This function is called via hppaelf_finish in the
3186 linker. */
3187
b34976b6 3188bfd_boolean
c39a58e6 3189elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3190{
3191 asection *stub_sec;
3192 struct bfd_hash_table *table;
83c81bfe 3193 struct elf32_hppa_link_hash_table *htab;
30667bf3 3194
83c81bfe 3195 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3196 if (htab == NULL)
3197 return FALSE;
30667bf3 3198
83c81bfe 3199 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3200 stub_sec != NULL;
3201 stub_sec = stub_sec->next)
3202 {
dc810e39 3203 bfd_size_type size;
30667bf3
AM
3204
3205 /* Allocate memory to hold the linker stubs. */
eea6121a 3206 size = stub_sec->size;
c39a58e6 3207 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3208 if (stub_sec->contents == NULL && size != 0)
b34976b6 3209 return FALSE;
eea6121a 3210 stub_sec->size = 0;
30667bf3
AM
3211 }
3212
3213 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3214 table = &htab->bstab;
30667bf3
AM
3215 bfd_hash_traverse (table, hppa_build_one_stub, info);
3216
b34976b6 3217 return TRUE;
30667bf3
AM
3218}
3219
9b52905e
NC
3220/* Return the base vma address which should be subtracted from the real
3221 address when resolving a dtpoff relocation.
3222 This is PT_TLS segment p_vaddr. */
3223
3224static bfd_vma
3225dtpoff_base (struct bfd_link_info *info)
3226{
3227 /* If tls_sec is NULL, we should have signalled an error already. */
3228 if (elf_hash_table (info)->tls_sec == NULL)
3229 return 0;
3230 return elf_hash_table (info)->tls_sec->vma;
3231}
3232
3233/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3234
3235static bfd_vma
3236tpoff (struct bfd_link_info *info, bfd_vma address)
3237{
3238 struct elf_link_hash_table *htab = elf_hash_table (info);
3239
3240 /* If tls_sec is NULL, we should have signalled an error already. */
3241 if (htab->tls_sec == NULL)
3242 return 0;
3243 /* hppa TLS ABI is variant I and static TLS block start just after
3244 tcbhead structure which has 2 pointer fields. */
3245 return (address - htab->tls_sec->vma
3246 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3247}
3248
c46b7515
AM
3249/* Perform a final link. */
3250
b34976b6 3251static bfd_boolean
c39a58e6 3252elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3253{
4dc86686 3254 /* Invoke the regular ELF linker to do all the work. */
c152c796 3255 if (!bfd_elf_final_link (abfd, info))
b34976b6 3256 return FALSE;
c46b7515
AM
3257
3258 /* If we're producing a final executable, sort the contents of the
985142a4 3259 unwind section. */
d9f40817
DA
3260 if (info->relocatable)
3261 return TRUE;
3262
46fe4e66 3263 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3264}
3265
3266/* Record the lowest address for the data and text segments. */
3267
3268static void
2ea37f1c 3269hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3270{
83c81bfe 3271 struct elf32_hppa_link_hash_table *htab;
c46b7515 3272
875c0872 3273 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3274 if (htab == NULL)
3275 return;
c46b7515
AM
3276
3277 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3278 {
2ea37f1c
NC
3279 bfd_vma value;
3280 Elf_Internal_Phdr *p;
3281
3282 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3283 BFD_ASSERT (p != NULL);
3284 value = p->p_vaddr;
c46b7515
AM
3285
3286 if ((section->flags & SEC_READONLY) != 0)
3287 {
83c81bfe
AM
3288 if (value < htab->text_segment_base)
3289 htab->text_segment_base = value;
c46b7515
AM
3290 }
3291 else
3292 {
83c81bfe
AM
3293 if (value < htab->data_segment_base)
3294 htab->data_segment_base = value;
c46b7515
AM
3295 }
3296 }
3297}
3298
30667bf3
AM
3299/* Perform a relocation as part of a final link. */
3300
3301static bfd_reloc_status_type
c39a58e6
AM
3302final_link_relocate (asection *input_section,
3303 bfd_byte *contents,
875c0872 3304 const Elf_Internal_Rela *rela,
c39a58e6
AM
3305 bfd_vma value,
3306 struct elf32_hppa_link_hash_table *htab,
3307 asection *sym_sec,
875c0872 3308 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3309 struct bfd_link_info *info)
30667bf3
AM
3310{
3311 int insn;
875c0872 3312 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3313 unsigned int orig_r_type = r_type;
30667bf3
AM
3314 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3315 int r_format = howto->bitsize;
3316 enum hppa_reloc_field_selector_type_alt r_field;
3317 bfd *input_bfd = input_section->owner;
875c0872 3318 bfd_vma offset = rela->r_offset;
30667bf3
AM
3319 bfd_vma max_branch_offset = 0;
3320 bfd_byte *hit_data = contents + offset;
875c0872 3321 bfd_signed_vma addend = rela->r_addend;
30667bf3 3322 bfd_vma location;
875c0872
DA
3323 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3324 int val;
30667bf3
AM
3325
3326 if (r_type == R_PARISC_NONE)
3327 return bfd_reloc_ok;
3328
3329 insn = bfd_get_32 (input_bfd, hit_data);
3330
3331 /* Find out where we are and where we're going. */
3332 location = (offset +
3333 input_section->output_offset +
3334 input_section->output_section->vma);
3335
a252afa4
DA
3336 /* If we are not building a shared library, convert DLTIND relocs to
3337 DPREL relocs. */
3338 if (!info->shared)
3339 {
3340 switch (r_type)
4fc8051d
AM
3341 {
3342 case R_PARISC_DLTIND21L:
3343 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3344 break;
3345
4fc8051d
AM
3346 case R_PARISC_DLTIND14R:
3347 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3348 break;
3349
4fc8051d
AM
3350 case R_PARISC_DLTIND14F:
3351 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3352 break;
3353 }
3354 }
3355
30667bf3
AM
3356 switch (r_type)
3357 {
3358 case R_PARISC_PCREL12F:
3359 case R_PARISC_PCREL17F:
3360 case R_PARISC_PCREL22F:
067fa4a6
AM
3361 /* If this call should go via the plt, find the import stub in
3362 the stub hash. */
30667bf3
AM
3363 if (sym_sec == NULL
3364 || sym_sec->output_section == NULL
875c0872 3365 || (hh != NULL
a63e02c7
DA
3366 && hh->eh.plt.offset != (bfd_vma) -1
3367 && hh->eh.dynindx != -1
875c0872 3368 && !hh->plabel
a252afa4 3369 && (info->shared
a63e02c7
DA
3370 || !hh->eh.def_regular
3371 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3372 {
875c0872
DA
3373 hsh = hppa_get_stub_entry (input_section, sym_sec,
3374 hh, rela, htab);
3375 if (hsh != NULL)
30667bf3 3376 {
875c0872
DA
3377 value = (hsh->stub_offset
3378 + hsh->stub_sec->output_offset
3379 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3380 addend = 0;
3381 }
875c0872 3382 else if (sym_sec == NULL && hh != NULL
a63e02c7 3383 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3384 {
db20fd76
AM
3385 /* It's OK if undefined weak. Calls to undefined weak
3386 symbols behave as if the "called" function
3387 immediately returns. We can thus call to a weak
3388 function without first checking whether the function
3389 is defined. */
30667bf3 3390 value = location;
db20fd76 3391 addend = 8;
30667bf3
AM
3392 }
3393 else
f09ebc7d 3394 return bfd_reloc_undefined;
30667bf3
AM
3395 }
3396 /* Fall thru. */
3397
3398 case R_PARISC_PCREL21L:
3399 case R_PARISC_PCREL17C:
3400 case R_PARISC_PCREL17R:
3401 case R_PARISC_PCREL14R:
3402 case R_PARISC_PCREL14F:
36751eee 3403 case R_PARISC_PCREL32:
30667bf3
AM
3404 /* Make it a pc relative offset. */
3405 value -= location;
3406 addend -= 8;
3407 break;
3408
3409 case R_PARISC_DPREL21L:
3410 case R_PARISC_DPREL14R:
3411 case R_PARISC_DPREL14F:
f6fd0237
DA
3412 case R_PARISC_TLS_GD21L:
3413 case R_PARISC_TLS_LDM21L:
3414 case R_PARISC_TLS_IE21L:
a252afa4
DA
3415 /* Convert instructions that use the linkage table pointer (r19) to
3416 instructions that use the global data pointer (dp). This is the
3417 most efficient way of using PIC code in an incomplete executable,
3418 but the user must follow the standard runtime conventions for
3419 accessing data for this to work. */
f6fd0237
DA
3420 if (orig_r_type == R_PARISC_DLTIND21L
3421 || (!info->shared
3422 && (r_type == R_PARISC_TLS_GD21L
3423 || r_type == R_PARISC_TLS_LDM21L
3424 || r_type == R_PARISC_TLS_IE21L)))
a252afa4
DA
3425 {
3426 /* Convert addil instructions if the original reloc was a
3427 DLTIND21L. GCC sometimes uses a register other than r19 for
3428 the operation, so we must convert any addil instruction
3429 that uses this relocation. */
3430 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3431 insn = ADDIL_DP;
3432 else
3433 /* We must have a ldil instruction. It's too hard to find
3434 and convert the associated add instruction, so issue an
3435 error. */
3436 (*_bfd_error_handler)
d003868e
AM
3437 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3438 input_bfd,
3439 input_section,
d1fa68d3 3440 (long) offset,
a252afa4
DA
3441 howto->name,
3442 insn);
3443 }
3444 else if (orig_r_type == R_PARISC_DLTIND14F)
3445 {
3446 /* This must be a format 1 load/store. Change the base
3447 register to dp. */
3448 insn = (insn & 0xfc1ffff) | (27 << 21);
3449 }
3450
30667bf3 3451 /* For all the DP relative relocations, we need to examine the symbol's
95d0f04a
DA
3452 section. If it has no section or if it's a code section, then
3453 "data pointer relative" makes no sense. In that case we don't
3454 adjust the "value", and for 21 bit addil instructions, we change the
3455 source addend register from %dp to %r0. This situation commonly
3456 arises for undefined weak symbols and when a variable's "constness"
30667bf3
AM
3457 is declared differently from the way the variable is defined. For
3458 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3459 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3460 {
3461 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3462 == (((int) OP_ADDIL << 26) | (27 << 21)))
3463 {
3464 insn &= ~ (0x1f << 21);
30667bf3
AM
3465 }
3466 /* Now try to make things easy for the dynamic linker. */
3467
3468 break;
3469 }
74d1c347 3470 /* Fall thru. */
30667bf3
AM
3471
3472 case R_PARISC_DLTIND21L:
3473 case R_PARISC_DLTIND14R:
3474 case R_PARISC_DLTIND14F:
9b52905e 3475 case R_PARISC_TLS_GD14R:
9b52905e 3476 case R_PARISC_TLS_LDM14R:
9b52905e 3477 case R_PARISC_TLS_IE14R:
30667bf3
AM
3478 value -= elf_gp (input_section->output_section->owner);
3479 break;
3480
c46b7515
AM
3481 case R_PARISC_SEGREL32:
3482 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3483 value -= htab->text_segment_base;
c46b7515 3484 else
83c81bfe 3485 value -= htab->data_segment_base;
c46b7515
AM
3486 break;
3487
30667bf3
AM
3488 default:
3489 break;
3490 }
3491
3492 switch (r_type)
3493 {
3494 case R_PARISC_DIR32:
47d89dba 3495 case R_PARISC_DIR14F:
30667bf3
AM
3496 case R_PARISC_DIR17F:
3497 case R_PARISC_PCREL17C:
3498 case R_PARISC_PCREL14F:
36751eee 3499 case R_PARISC_PCREL32:
30667bf3
AM
3500 case R_PARISC_DPREL14F:
3501 case R_PARISC_PLABEL32:
3502 case R_PARISC_DLTIND14F:
3503 case R_PARISC_SEGBASE:
3504 case R_PARISC_SEGREL32:
9b52905e
NC
3505 case R_PARISC_TLS_DTPMOD32:
3506 case R_PARISC_TLS_DTPOFF32:
3507 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3508 r_field = e_fsel;
3509 break;
3510
1bf42538 3511 case R_PARISC_DLTIND21L:
30667bf3 3512 case R_PARISC_PCREL21L:
30667bf3 3513 case R_PARISC_PLABEL21L:
1bf42538
JL
3514 r_field = e_lsel;
3515 break;
3516
3517 case R_PARISC_DIR21L:
3518 case R_PARISC_DPREL21L:
9b52905e
NC
3519 case R_PARISC_TLS_GD21L:
3520 case R_PARISC_TLS_LDM21L:
3521 case R_PARISC_TLS_LDO21L:
3522 case R_PARISC_TLS_IE21L:
3523 case R_PARISC_TLS_LE21L:
30667bf3
AM
3524 r_field = e_lrsel;
3525 break;
3526
30667bf3 3527 case R_PARISC_PCREL17R:
30667bf3 3528 case R_PARISC_PCREL14R:
30667bf3
AM
3529 case R_PARISC_PLABEL14R:
3530 case R_PARISC_DLTIND14R:
1bf42538
JL
3531 r_field = e_rsel;
3532 break;
3533
3534 case R_PARISC_DIR17R:
3535 case R_PARISC_DIR14R:
3536 case R_PARISC_DPREL14R:
9b52905e
NC
3537 case R_PARISC_TLS_GD14R:
3538 case R_PARISC_TLS_LDM14R:
3539 case R_PARISC_TLS_LDO14R:
3540 case R_PARISC_TLS_IE14R:
3541 case R_PARISC_TLS_LE14R:
30667bf3
AM
3542 r_field = e_rrsel;
3543 break;
3544
3545 case R_PARISC_PCREL12F:
3546 case R_PARISC_PCREL17F:
3547 case R_PARISC_PCREL22F:
3548 r_field = e_fsel;
3549
3550 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3551 {
3552 max_branch_offset = (1 << (17-1)) << 2;
3553 }
3554 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3555 {
3556 max_branch_offset = (1 << (12-1)) << 2;
3557 }
3558 else
3559 {
3560 max_branch_offset = (1 << (22-1)) << 2;
3561 }
3562
3563 /* sym_sec is NULL on undefined weak syms or when shared on
3564 undefined syms. We've already checked for a stub for the
3565 shared undefined case. */
3566 if (sym_sec == NULL)
3567 break;
3568
3569 /* If the branch is out of reach, then redirect the
3570 call to the local stub for this function. */
3571 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3572 {
875c0872
DA
3573 hsh = hppa_get_stub_entry (input_section, sym_sec,
3574 hh, rela, htab);
3575 if (hsh == NULL)
f09ebc7d 3576 return bfd_reloc_undefined;
30667bf3
AM
3577
3578 /* Munge up the value and addend so that we call the stub
3579 rather than the procedure directly. */
875c0872
DA
3580 value = (hsh->stub_offset
3581 + hsh->stub_sec->output_offset
3582 + hsh->stub_sec->output_section->vma
30667bf3
AM
3583 - location);
3584 addend = -8;
3585 }
3586 break;
3587
3588 /* Something we don't know how to handle. */
3589 default:
3590 return bfd_reloc_notsupported;
3591 }
3592
3593 /* Make sure we can reach the stub. */
3594 if (max_branch_offset != 0
3595 && value + addend + max_branch_offset >= 2*max_branch_offset)
3596 {
3597 (*_bfd_error_handler)
d003868e
AM
3598 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3599 input_bfd,
3600 input_section,
d1fa68d3 3601 (long) offset,
a63e02c7 3602 hsh->bh_root.string);
ce757d15 3603 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3604 return bfd_reloc_notsupported;
3605 }
3606
3607 val = hppa_field_adjust (value, addend, r_field);
3608
3609 switch (r_type)
3610 {
3611 case R_PARISC_PCREL12F:
3612 case R_PARISC_PCREL17C:
3613 case R_PARISC_PCREL17F:
3614 case R_PARISC_PCREL17R:
3615 case R_PARISC_PCREL22F:
3616 case R_PARISC_DIR17F:
3617 case R_PARISC_DIR17R:
3618 /* This is a branch. Divide the offset by four.
3619 Note that we need to decide whether it's a branch or
3620 otherwise by inspecting the reloc. Inspecting insn won't
3621 work as insn might be from a .word directive. */
3622 val >>= 2;
3623 break;
3624
3625 default:
3626 break;
3627 }
3628
3629 insn = hppa_rebuild_insn (insn, val, r_format);
3630
3631 /* Update the instruction word. */
74d1c347 3632 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3633 return bfd_reloc_ok;
3634}
3635
30667bf3
AM
3636/* Relocate an HPPA ELF section. */
3637
b34976b6 3638static bfd_boolean
c39a58e6
AM
3639elf32_hppa_relocate_section (bfd *output_bfd,
3640 struct bfd_link_info *info,
3641 bfd *input_bfd,
3642 asection *input_section,
3643 bfd_byte *contents,
3644 Elf_Internal_Rela *relocs,
3645 Elf_Internal_Sym *local_syms,
3646 asection **local_sections)
30667bf3 3647{
30667bf3 3648 bfd_vma *local_got_offsets;
83c81bfe 3649 struct elf32_hppa_link_hash_table *htab;
30667bf3 3650 Elf_Internal_Shdr *symtab_hdr;
875c0872 3651 Elf_Internal_Rela *rela;
30667bf3 3652 Elf_Internal_Rela *relend;
30667bf3
AM
3653
3654 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3655
83c81bfe 3656 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3657 if (htab == NULL)
3658 return FALSE;
3659
74d1c347 3660 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3661
875c0872 3662 rela = relocs;
30667bf3 3663 relend = relocs + input_section->reloc_count;
875c0872 3664 for (; rela < relend; rela++)
30667bf3
AM
3665 {
3666 unsigned int r_type;
3667 reloc_howto_type *howto;
3668 unsigned int r_symndx;
875c0872 3669 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3670 Elf_Internal_Sym *sym;
3671 asection *sym_sec;
3672 bfd_vma relocation;
875c0872 3673 bfd_reloc_status_type rstatus;
30667bf3 3674 const char *sym_name;
b34976b6
AM
3675 bfd_boolean plabel;
3676 bfd_boolean warned_undef;
30667bf3 3677
875c0872 3678 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3679 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3680 {
3681 bfd_set_error (bfd_error_bad_value);
b34976b6 3682 return FALSE;
30667bf3
AM
3683 }
3684 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3685 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3686 continue;
3687
875c0872
DA
3688 r_symndx = ELF32_R_SYM (rela->r_info);
3689 hh = NULL;
30667bf3
AM
3690 sym = NULL;
3691 sym_sec = NULL;
b34976b6 3692 warned_undef = FALSE;
30667bf3
AM
3693 if (r_symndx < symtab_hdr->sh_info)
3694 {
3695 /* This is a local symbol, h defaults to NULL. */
3696 sym = local_syms + r_symndx;
3697 sym_sec = local_sections[r_symndx];
875c0872 3698 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3699 }
3700 else
3701 {
875c0872 3702 struct elf_link_hash_entry *eh;
560e09e9 3703 bfd_boolean unresolved_reloc;
b2a8e766 3704 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3705
875c0872 3706 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3707 r_symndx, symtab_hdr, sym_hashes,
875c0872 3708 eh, sym_sec, relocation,
b2a8e766 3709 unresolved_reloc, warned_undef);
560e09e9 3710
ab96bf03
AM
3711 if (!info->relocatable
3712 && relocation == 0
875c0872
DA
3713 && eh->root.type != bfd_link_hash_defined
3714 && eh->root.type != bfd_link_hash_defweak
3715 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3716 {
59c2e50f 3717 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3718 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3719 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3720 {
3721 if (! info->callbacks->undefined_symbol
9b52905e 3722 (info, eh_name (eh), input_bfd,
875c0872 3723 input_section, rela->r_offset, FALSE))
560e09e9
NC
3724 return FALSE;
3725 warned_undef = TRUE;
3726 }
30667bf3 3727 }
875c0872 3728 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3729 }
3730
ab96bf03 3731 if (sym_sec != NULL && elf_discarded_section (sym_sec))
e4067dbb
DJ
3732 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3733 rela, relend,
3734 elf_hppa_howto_table + r_type,
3735 contents);
ab96bf03
AM
3736
3737 if (info->relocatable)
3738 continue;
3739
30667bf3 3740 /* Do any required modifications to the relocation value, and
25f72752
AM
3741 determine what types of dynamic info we need to output, if
3742 any. */
74d1c347 3743 plabel = 0;
30667bf3
AM
3744 switch (r_type)
3745 {
3746 case R_PARISC_DLTIND14F:
3747 case R_PARISC_DLTIND14R:
3748 case R_PARISC_DLTIND21L:
ce757d15
AM
3749 {
3750 bfd_vma off;
b34976b6 3751 bfd_boolean do_got = 0;
ce757d15
AM
3752
3753 /* Relocation is to the entry for this symbol in the
3754 global offset table. */
875c0872 3755 if (hh != NULL)
ce757d15 3756 {
b34976b6 3757 bfd_boolean dyn;
ce757d15 3758
a63e02c7
DA
3759 off = hh->eh.got.offset;
3760 dyn = htab->etab.dynamic_sections_created;
c152c796 3761 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3762 &hh->eh))
ce757d15
AM
3763 {
3764 /* If we aren't going to call finish_dynamic_symbol,
3765 then we need to handle initialisation of the .got
3766 entry and create needed relocs here. Since the
3767 offset must always be a multiple of 4, we use the
3768 least significant bit to record whether we have
3769 initialised it already. */
3770 if ((off & 1) != 0)
3771 off &= ~1;
3772 else
3773 {
a63e02c7 3774 hh->eh.got.offset |= 1;
ce757d15
AM
3775 do_got = 1;
3776 }
3777 }
3778 }
3779 else
3780 {
3781 /* Local symbol case. */
3782 if (local_got_offsets == NULL)
3783 abort ();
3784
3785 off = local_got_offsets[r_symndx];
3786
3787 /* The offset must always be a multiple of 4. We use
3788 the least significant bit to record whether we have
3789 already generated the necessary reloc. */
3790 if ((off & 1) != 0)
3791 off &= ~1;
3792 else
3793 {
3794 local_got_offsets[r_symndx] |= 1;
3795 do_got = 1;
3796 }
3797 }
68fb2e56 3798
ce757d15
AM
3799 if (do_got)
3800 {
3801 if (info->shared)
3802 {
3803 /* Output a dynamic relocation for this GOT entry.
3804 In this case it is relative to the base of the
3805 object because the symbol index is zero. */
3806 Elf_Internal_Rela outrel;
947216bf 3807 bfd_byte *loc;
875c0872 3808 asection *sec = htab->srelgot;
ce757d15
AM
3809
3810 outrel.r_offset = (off
3811 + htab->sgot->output_offset
3812 + htab->sgot->output_section->vma);
3813 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3814 outrel.r_addend = relocation;
875c0872
DA
3815 loc = sec->contents;
3816 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3817 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3818 }
3819 else
30667bf3 3820 bfd_put_32 (output_bfd, relocation,
83c81bfe 3821 htab->sgot->contents + off);
ce757d15 3822 }
30667bf3 3823
ce757d15
AM
3824 if (off >= (bfd_vma) -2)
3825 abort ();
30667bf3 3826
ce757d15
AM
3827 /* Add the base of the GOT to the relocation value. */
3828 relocation = (off
3829 + htab->sgot->output_offset
3830 + htab->sgot->output_section->vma);
3831 }
30667bf3 3832 break;
252b5132 3833
c46b7515
AM
3834 case R_PARISC_SEGREL32:
3835 /* If this is the first SEGREL relocation, then initialize
3836 the segment base values. */
83c81bfe
AM
3837 if (htab->text_segment_base == (bfd_vma) -1)
3838 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3839 break;
3840
30667bf3
AM
3841 case R_PARISC_PLABEL14R:
3842 case R_PARISC_PLABEL21L:
3843 case R_PARISC_PLABEL32:
a63e02c7 3844 if (htab->etab.dynamic_sections_created)
252b5132 3845 {
ce757d15 3846 bfd_vma off;
b34976b6 3847 bfd_boolean do_plt = 0;
74d1c347
AM
3848 /* If we have a global symbol with a PLT slot, then
3849 redirect this relocation to it. */
875c0872 3850 if (hh != NULL)
74d1c347 3851 {
a63e02c7 3852 off = hh->eh.plt.offset;
c152c796 3853 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3854 &hh->eh))
8dea1268
AM
3855 {
3856 /* In a non-shared link, adjust_dynamic_symbols
3857 isn't called for symbols forced local. We
dc810e39 3858 need to write out the plt entry here. */
8dea1268
AM
3859 if ((off & 1) != 0)
3860 off &= ~1;
3861 else
3862 {
a63e02c7 3863 hh->eh.plt.offset |= 1;
ce757d15 3864 do_plt = 1;
8dea1268
AM
3865 }
3866 }
74d1c347
AM
3867 }
3868 else
3869 {
68fb2e56
AM
3870 bfd_vma *local_plt_offsets;
3871
3872 if (local_got_offsets == NULL)
3873 abort ();
74d1c347 3874
68fb2e56
AM
3875 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3876 off = local_plt_offsets[r_symndx];
74d1c347
AM
3877
3878 /* As for the local .got entry case, we use the last
3879 bit to record whether we've already initialised
3880 this local .plt entry. */
3881 if ((off & 1) != 0)
3882 off &= ~1;
ce757d15
AM
3883 else
3884 {
3885 local_plt_offsets[r_symndx] |= 1;
3886 do_plt = 1;
3887 }
3888 }
3889
3890 if (do_plt)
3891 {
3892 if (info->shared)
3893 {
3894 /* Output a dynamic IPLT relocation for this
3895 PLT entry. */
3896 Elf_Internal_Rela outrel;
947216bf
AM
3897 bfd_byte *loc;
3898 asection *s = htab->srelplt;
ce757d15
AM
3899
3900 outrel.r_offset = (off
3901 + htab->splt->output_offset
3902 + htab->splt->output_section->vma);
3903 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3904 outrel.r_addend = relocation;
947216bf
AM
3905 loc = s->contents;
3906 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3907 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3908 }
74d1c347
AM
3909 else
3910 {
3911 bfd_put_32 (output_bfd,
3912 relocation,
83c81bfe 3913 htab->splt->contents + off);
74d1c347 3914 bfd_put_32 (output_bfd,
83c81bfe
AM
3915 elf_gp (htab->splt->output_section->owner),
3916 htab->splt->contents + off + 4);
74d1c347
AM
3917 }
3918 }
3919
68fb2e56 3920 if (off >= (bfd_vma) -2)
49e9d0d3 3921 abort ();
74d1c347
AM
3922
3923 /* PLABELs contain function pointers. Relocation is to
3924 the entry for the function in the .plt. The magic +2
3925 offset signals to $$dyncall that the function pointer
3926 is in the .plt and thus has a gp pointer too.
3927 Exception: Undefined PLABELs should have a value of
3928 zero. */
875c0872 3929 if (hh == NULL
a63e02c7
DA
3930 || (hh->eh.root.type != bfd_link_hash_undefweak
3931 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3932 {
3933 relocation = (off
83c81bfe
AM
3934 + htab->splt->output_offset
3935 + htab->splt->output_section->vma
74d1c347
AM
3936 + 2);
3937 }
3938 plabel = 1;
30667bf3
AM
3939 }
3940 /* Fall through and possibly emit a dynamic relocation. */
3941
3942 case R_PARISC_DIR17F:
3943 case R_PARISC_DIR17R:
47d89dba 3944 case R_PARISC_DIR14F:
30667bf3
AM
3945 case R_PARISC_DIR14R:
3946 case R_PARISC_DIR21L:
3947 case R_PARISC_DPREL14F:
3948 case R_PARISC_DPREL14R:
3949 case R_PARISC_DPREL21L:
3950 case R_PARISC_DIR32:
b1e24c02 3951 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3952 break;
3953
30667bf3 3954 /* The reloc types handled here and this conditional
56882138 3955 expression must match the code in ..check_relocs and
ec338859 3956 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3957 as in ..check_relocs, with some extra conditions (dynindx
3958 test in this case) to cater for relocs removed by
ec338859 3959 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3960 here does indeed match the one in ..check_relocs, the
3961 difference being that here we test DEF_DYNAMIC as well as
3962 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3963 which is why we can't use just that test here.
3964 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3965 there all files have not been loaded. */
446f2863 3966 if ((info->shared
875c0872 3967 && (hh == NULL
a63e02c7
DA
3968 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3969 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3970 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3971 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3972 || (!info->shared
875c0872 3973 && hh != NULL
a63e02c7
DA
3974 && hh->eh.dynindx != -1
3975 && !hh->eh.non_got_ref
4fc8051d 3976 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3977 && hh->eh.def_dynamic
3978 && !hh->eh.def_regular)
3979 || hh->eh.root.type == bfd_link_hash_undefweak
3980 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3981 {
3982 Elf_Internal_Rela outrel;
b34976b6 3983 bfd_boolean skip;
98ceb8ce 3984 asection *sreloc;
947216bf 3985 bfd_byte *loc;
252b5132 3986
30667bf3
AM
3987 /* When generating a shared object, these relocations
3988 are copied into the output file to be resolved at run
3989 time. */
252b5132 3990
875c0872 3991 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3992 outrel.r_offset =
3993 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3994 rela->r_offset);
0bb2d96a
JJ
3995 skip = (outrel.r_offset == (bfd_vma) -1
3996 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3997 outrel.r_offset += (input_section->output_offset
3998 + input_section->output_section->vma);
875c0872 3999
30667bf3 4000 if (skip)
252b5132 4001 {
30667bf3 4002 memset (&outrel, 0, sizeof (outrel));
252b5132 4003 }
875c0872 4004 else if (hh != NULL
a63e02c7 4005 && hh->eh.dynindx != -1
74d1c347 4006 && (plabel
446f2863
AM
4007 || !IS_ABSOLUTE_RELOC (r_type)
4008 || !info->shared
74d1c347 4009 || !info->symbolic
a63e02c7 4010 || !hh->eh.def_regular))
252b5132 4011 {
a63e02c7 4012 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4013 }
4014 else /* It's a local symbol, or one marked to become local. */
4015 {
4016 int indx = 0;
edd21aca 4017
30667bf3
AM
4018 /* Add the absolute offset of the symbol. */
4019 outrel.r_addend += relocation;
edd21aca 4020
74d1c347
AM
4021 /* Global plabels need to be processed by the
4022 dynamic linker so that functions have at most one
4023 fptr. For this reason, we need to differentiate
4024 between global and local plabels, which we do by
4025 providing the function symbol for a global plabel
4026 reloc, and no symbol for local plabels. */
4027 if (! plabel
4028 && sym_sec != NULL
30667bf3
AM
4029 && sym_sec->output_section != NULL
4030 && ! bfd_is_abs_section (sym_sec))
252b5132 4031 {
74541ad4
AM
4032 asection *osec;
4033
4034 osec = sym_sec->output_section;
4035 indx = elf_section_data (osec)->dynindx;
4036 if (indx == 0)
4037 {
4038 osec = htab->etab.text_index_section;
4039 indx = elf_section_data (osec)->dynindx;
4040 }
4041 BFD_ASSERT (indx != 0);
4b71bec0 4042
30667bf3
AM
4043 /* We are turning this relocation into one
4044 against a section symbol, so subtract out the
4045 output section's address but not the offset
4046 of the input section in the output section. */
74541ad4 4047 outrel.r_addend -= osec->vma;
252b5132 4048 }
252b5132 4049
30667bf3
AM
4050 outrel.r_info = ELF32_R_INFO (indx, r_type);
4051 }
98ceb8ce
AM
4052 sreloc = elf_section_data (input_section)->sreloc;
4053 if (sreloc == NULL)
4054 abort ();
4055
947216bf
AM
4056 loc = sreloc->contents;
4057 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4058 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4059 }
4060 break;
9b52905e
NC
4061
4062 case R_PARISC_TLS_LDM21L:
4063 case R_PARISC_TLS_LDM14R:
4064 {
4065 bfd_vma off;
4066
4067 off = htab->tls_ldm_got.offset;
4068 if (off & 1)
4069 off &= ~1;
4070 else
4071 {
4072 Elf_Internal_Rela outrel;
4073 bfd_byte *loc;
4074
4075 outrel.r_offset = (off
4076 + htab->sgot->output_section->vma
4077 + htab->sgot->output_offset);
4078 outrel.r_addend = 0;
4079 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4080 loc = htab->srelgot->contents;
4081 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4082
4083 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4084 htab->tls_ldm_got.offset |= 1;
4085 }
4086
4087 /* Add the base of the GOT to the relocation value. */
4088 relocation = (off
4089 + htab->sgot->output_offset
4090 + htab->sgot->output_section->vma);
4091
4092 break;
4093 }
4094
4095 case R_PARISC_TLS_LDO21L:
4096 case R_PARISC_TLS_LDO14R:
4097 relocation -= dtpoff_base (info);
4098 break;
4099
4100 case R_PARISC_TLS_GD21L:
4101 case R_PARISC_TLS_GD14R:
4102 case R_PARISC_TLS_IE21L:
4103 case R_PARISC_TLS_IE14R:
4104 {
4105 bfd_vma off;
4106 int indx;
4107 char tls_type;
4108
4109 indx = 0;
4110 if (hh != NULL)
4111 {
4112 bfd_boolean dyn;
4113 dyn = htab->etab.dynamic_sections_created;
4114
4115 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4116 && (!info->shared
4117 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4118 {
4119 indx = hh->eh.dynindx;
4120 }
4121 off = hh->eh.got.offset;
4122 tls_type = hh->tls_type;
4123 }
4124 else
4125 {
4126 off = local_got_offsets[r_symndx];
4127 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4128 }
4129
4130 if (tls_type == GOT_UNKNOWN)
4131 abort ();
4132
4133 if ((off & 1) != 0)
4134 off &= ~1;
4135 else
4136 {
4137 bfd_boolean need_relocs = FALSE;
4138 Elf_Internal_Rela outrel;
4139 bfd_byte *loc = NULL;
4140 int cur_off = off;
4141
4142 /* The GOT entries have not been initialized yet. Do it
4143 now, and emit any relocations. If both an IE GOT and a
4144 GD GOT are necessary, we emit the GD first. */
4145
4146 if ((info->shared || indx != 0)
4147 && (hh == NULL
4148 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4149 || hh->eh.root.type != bfd_link_hash_undefweak))
4150 {
4151 need_relocs = TRUE;
4152 loc = htab->srelgot->contents;
4153 /* FIXME (CAO): Should this be reloc_count++ ? */
4154 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4155 }
4156
4157 if (tls_type & GOT_TLS_GD)
4158 {
4159 if (need_relocs)
4160 {
4161 outrel.r_offset = (cur_off
4162 + htab->sgot->output_section->vma
4163 + htab->sgot->output_offset);
4164 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4165 outrel.r_addend = 0;
4166 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4167 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4168 htab->srelgot->reloc_count++;
4169 loc += sizeof (Elf32_External_Rela);
4170
4171 if (indx == 0)
4172 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4173 htab->sgot->contents + cur_off + 4);
4174 else
4175 {
4176 bfd_put_32 (output_bfd, 0,
4177 htab->sgot->contents + cur_off + 4);
4178 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4179 outrel.r_offset += 4;
4180 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4181 htab->srelgot->reloc_count++;
4182 loc += sizeof (Elf32_External_Rela);
4183 }
4184 }
4185 else
4186 {
4187 /* If we are not emitting relocations for a
4188 general dynamic reference, then we must be in a
4189 static link or an executable link with the
4190 symbol binding locally. Mark it as belonging
4191 to module 1, the executable. */
4192 bfd_put_32 (output_bfd, 1,
4193 htab->sgot->contents + cur_off);
4194 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4195 htab->sgot->contents + cur_off + 4);
4196 }
4197
4198
4199 cur_off += 8;
4200 }
4201
4202 if (tls_type & GOT_TLS_IE)
4203 {
4204 if (need_relocs)
4205 {
4206 outrel.r_offset = (cur_off
4207 + htab->sgot->output_section->vma
4208 + htab->sgot->output_offset);
4209 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4210
4211 if (indx == 0)
4212 outrel.r_addend = relocation - dtpoff_base (info);
4213 else
4214 outrel.r_addend = 0;
4215
4216 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4217 htab->srelgot->reloc_count++;
4218 loc += sizeof (Elf32_External_Rela);
4219 }
4220 else
4221 bfd_put_32 (output_bfd, tpoff (info, relocation),
4222 htab->sgot->contents + cur_off);
4223
4224 cur_off += 4;
4225 }
4226
4227 if (hh != NULL)
4228 hh->eh.got.offset |= 1;
4229 else
4230 local_got_offsets[r_symndx] |= 1;
4231 }
4232
4233 if ((tls_type & GOT_TLS_GD)
4234 && r_type != R_PARISC_TLS_GD21L
4235 && r_type != R_PARISC_TLS_GD14R)
4236 off += 2 * GOT_ENTRY_SIZE;
4237
4238 /* Add the base of the GOT to the relocation value. */
4239 relocation = (off
4240 + htab->sgot->output_offset
4241 + htab->sgot->output_section->vma);
4242
4243 break;
4244 }
4245
4246 case R_PARISC_TLS_LE21L:
4247 case R_PARISC_TLS_LE14R:
4248 {
4249 relocation = tpoff (info, relocation);
4250 break;
4251 }
4252 break;
edd21aca 4253
30667bf3
AM
4254 default:
4255 break;
4256 }
252b5132 4257
875c0872
DA
4258 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4259 htab, sym_sec, hh, info);
252b5132 4260
875c0872 4261 if (rstatus == bfd_reloc_ok)
30667bf3 4262 continue;
252b5132 4263
875c0872 4264 if (hh != NULL)
9b52905e 4265 sym_name = hh_name (hh);
30667bf3
AM
4266 else
4267 {
4268 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4269 symtab_hdr->sh_link,
4270 sym->st_name);
4271 if (sym_name == NULL)
b34976b6 4272 return FALSE;
30667bf3
AM
4273 if (*sym_name == '\0')
4274 sym_name = bfd_section_name (input_bfd, sym_sec);
4275 }
edd21aca 4276
30667bf3 4277 howto = elf_hppa_howto_table + r_type;
252b5132 4278
875c0872 4279 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4280 {
875c0872 4281 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4282 {
4283 (*_bfd_error_handler)
d003868e
AM
4284 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4285 input_bfd,
4286 input_section,
875c0872 4287 (long) rela->r_offset,
f09ebc7d
AM
4288 howto->name,
4289 sym_name);
4290 bfd_set_error (bfd_error_bad_value);
b34976b6 4291 return FALSE;
f09ebc7d 4292 }
30667bf3
AM
4293 }
4294 else
4295 {
4296 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4297 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4298 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4299 return FALSE;
30667bf3
AM
4300 }
4301 }
edd21aca 4302
b34976b6 4303 return TRUE;
30667bf3 4304}
252b5132 4305
30667bf3
AM
4306/* Finish up dynamic symbol handling. We set the contents of various
4307 dynamic sections here. */
252b5132 4308
b34976b6 4309static bfd_boolean
c39a58e6
AM
4310elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4311 struct bfd_link_info *info,
875c0872 4312 struct elf_link_hash_entry *eh,
c39a58e6 4313 Elf_Internal_Sym *sym)
30667bf3 4314{
83c81bfe 4315 struct elf32_hppa_link_hash_table *htab;
875c0872 4316 Elf_Internal_Rela rela;
a252afa4 4317 bfd_byte *loc;
edd21aca 4318
83c81bfe 4319 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4320 if (htab == NULL)
4321 return FALSE;
30667bf3 4322
875c0872 4323 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4324 {
4325 bfd_vma value;
30667bf3 4326
875c0872 4327 if (eh->plt.offset & 1)
8dea1268
AM
4328 abort ();
4329
30667bf3
AM
4330 /* This symbol has an entry in the procedure linkage table. Set
4331 it up.
4332
4333 The format of a plt entry is
74d1c347
AM
4334 <funcaddr>
4335 <__gp>
47d89dba 4336 */
30667bf3 4337 value = 0;
875c0872
DA
4338 if (eh->root.type == bfd_link_hash_defined
4339 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4340 {
875c0872
DA
4341 value = eh->root.u.def.value;
4342 if (eh->root.u.def.section->output_section != NULL)
4343 value += (eh->root.u.def.section->output_offset
4344 + eh->root.u.def.section->output_section->vma);
252b5132 4345 }
edd21aca 4346
a252afa4 4347 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4348 rela.r_offset = (eh->plt.offset
a252afa4
DA
4349 + htab->splt->output_offset
4350 + htab->splt->output_section->vma);
875c0872 4351 if (eh->dynindx != -1)
30667bf3 4352 {
875c0872
DA
4353 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4354 rela.r_addend = 0;
30667bf3 4355 }
ce757d15 4356 else
47d89dba 4357 {
a252afa4
DA
4358 /* This symbol has been marked to become local, and is
4359 used by a plabel so must be kept in the .plt. */
875c0872
DA
4360 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4361 rela.r_addend = value;
47d89dba
AM
4362 }
4363
a252afa4
DA
4364 loc = htab->srelplt->contents;
4365 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4366 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4367
875c0872 4368 if (!eh->def_regular)
30667bf3
AM
4369 {
4370 /* Mark the symbol as undefined, rather than as defined in
4371 the .plt section. Leave the value alone. */
4372 sym->st_shndx = SHN_UNDEF;
4373 }
4374 }
edd21aca 4375
9b52905e
NC
4376 if (eh->got.offset != (bfd_vma) -1
4377 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4378 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4379 {
30667bf3
AM
4380 /* This symbol has an entry in the global offset table. Set it
4381 up. */
4382
875c0872 4383 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4384 + htab->sgot->output_offset
4385 + htab->sgot->output_section->vma);
30667bf3 4386
4dc86686
AM
4387 /* If this is a -Bsymbolic link and the symbol is defined
4388 locally or was forced to be local because of a version file,
4389 we just want to emit a RELATIVE reloc. The entry in the
4390 global offset table will already have been initialized in the
4391 relocate_section function. */
4392 if (info->shared
875c0872
DA
4393 && (info->symbolic || eh->dynindx == -1)
4394 && eh->def_regular)
30667bf3 4395 {
875c0872
DA
4396 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4397 rela.r_addend = (eh->root.u.def.value
4398 + eh->root.u.def.section->output_offset
4399 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4400 }
4401 else
4402 {
875c0872 4403 if ((eh->got.offset & 1) != 0)
49e9d0d3 4404 abort ();
875c0872
DA
4405
4406 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4407 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4408 rela.r_addend = 0;
30667bf3 4409 }
edd21aca 4410
947216bf
AM
4411 loc = htab->srelgot->contents;
4412 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4413 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4414 }
edd21aca 4415
875c0872 4416 if (eh->needs_copy)
30667bf3 4417 {
875c0872 4418 asection *sec;
30667bf3
AM
4419
4420 /* This symbol needs a copy reloc. Set it up. */
4421
875c0872
DA
4422 if (! (eh->dynindx != -1
4423 && (eh->root.type == bfd_link_hash_defined
4424 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4425 abort ();
30667bf3 4426
875c0872 4427 sec = htab->srelbss;
30667bf3 4428
875c0872
DA
4429 rela.r_offset = (eh->root.u.def.value
4430 + eh->root.u.def.section->output_offset
4431 + eh->root.u.def.section->output_section->vma);
4432 rela.r_addend = 0;
4433 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4434 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4435 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4436 }
4437
4438 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9b52905e
NC
4439 if (eh_name (eh)[0] == '_'
4440 && (strcmp (eh_name (eh), "_DYNAMIC") == 0
22edb2f1 4441 || eh == htab->etab.hgot))
30667bf3
AM
4442 {
4443 sym->st_shndx = SHN_ABS;
4444 }
4445
b34976b6 4446 return TRUE;
30667bf3
AM
4447}
4448
98ceb8ce
AM
4449/* Used to decide how to sort relocs in an optimal manner for the
4450 dynamic linker, before writing them out. */
4451
4452static enum elf_reloc_type_class
c39a58e6 4453elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
98ceb8ce 4454{
9b52905e 4455 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4456 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4457 check below. */
4458 switch ((int) ELF32_R_TYPE (rela->r_info))
4459 {
4460 case R_PARISC_TLS_DTPMOD32:
4461 case R_PARISC_TLS_DTPOFF32:
4462 case R_PARISC_TLS_TPREL32:
4463 return reloc_class_normal;
4464 }
4465
cf35638d 4466 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4467 return reloc_class_relative;
4468
4469 switch ((int) ELF32_R_TYPE (rela->r_info))
4470 {
4471 case R_PARISC_IPLT:
4472 return reloc_class_plt;
4473 case R_PARISC_COPY:
4474 return reloc_class_copy;
4475 default:
4476 return reloc_class_normal;
4477 }
4478}
4479
30667bf3
AM
4480/* Finish up the dynamic sections. */
4481
b34976b6 4482static bfd_boolean
c39a58e6
AM
4483elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4484 struct bfd_link_info *info)
30667bf3
AM
4485{
4486 bfd *dynobj;
83c81bfe 4487 struct elf32_hppa_link_hash_table *htab;
30667bf3 4488 asection *sdyn;
894891db 4489 asection * sgot;
30667bf3 4490
83c81bfe 4491 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4492 if (htab == NULL)
4493 return FALSE;
4494
a63e02c7 4495 dynobj = htab->etab.dynobj;
30667bf3 4496
894891db
NC
4497 sgot = htab->sgot;
4498 /* A broken linker script might have discarded the dynamic sections.
4499 Catch this here so that we do not seg-fault later on. */
4500 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4501 return FALSE;
4502
30667bf3
AM
4503 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4504
a63e02c7 4505 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4506 {
4507 Elf32_External_Dyn *dyncon, *dynconend;
4508
49e9d0d3
AM
4509 if (sdyn == NULL)
4510 abort ();
30667bf3
AM
4511
4512 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4513 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4514 for (; dyncon < dynconend; dyncon++)
edd21aca 4515 {
30667bf3
AM
4516 Elf_Internal_Dyn dyn;
4517 asection *s;
4518
4519 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4520
4521 switch (dyn.d_tag)
4522 {
4523 default:
3ac8354b 4524 continue;
30667bf3
AM
4525
4526 case DT_PLTGOT:
4527 /* Use PLTGOT to set the GOT register. */
4528 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4529 break;
4530
4531 case DT_JMPREL:
83c81bfe 4532 s = htab->srelplt;
30667bf3 4533 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4534 break;
4535
4536 case DT_PLTRELSZ:
83c81bfe 4537 s = htab->srelplt;
eea6121a 4538 dyn.d_un.d_val = s->size;
30667bf3 4539 break;
4e12ff7f
AM
4540
4541 case DT_RELASZ:
4542 /* Don't count procedure linkage table relocs in the
4543 overall reloc count. */
6348e046
AM
4544 s = htab->srelplt;
4545 if (s == NULL)
4546 continue;
eea6121a 4547 dyn.d_un.d_val -= s->size;
6348e046
AM
4548 break;
4549
4550 case DT_RELA:
4551 /* We may not be using the standard ELF linker script.
4552 If .rela.plt is the first .rela section, we adjust
4553 DT_RELA to not include it. */
4554 s = htab->srelplt;
4555 if (s == NULL)
4556 continue;
4557 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4558 continue;
eea6121a 4559 dyn.d_un.d_ptr += s->size;
4e12ff7f 4560 break;
30667bf3 4561 }
3ac8354b
AM
4562
4563 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4564 }
252b5132 4565 }
edd21aca 4566
894891db 4567 if (sgot != NULL && sgot->size != 0)
30667bf3 4568 {
74d1c347
AM
4569 /* Fill in the first entry in the global offset table.
4570 We use it to point to our dynamic section, if we have one. */
30667bf3 4571 bfd_put_32 (output_bfd,
c39a58e6 4572 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4573 sgot->contents);
30667bf3 4574
74d1c347 4575 /* The second entry is reserved for use by the dynamic linker. */
894891db 4576 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4577
30667bf3 4578 /* Set .got entry size. */
894891db 4579 elf_section_data (sgot->output_section)
74d1c347 4580 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4581 }
4582
eea6121a 4583 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4584 {
4585 /* Set plt entry size. */
83c81bfe 4586 elf_section_data (htab->splt->output_section)
47d89dba
AM
4587 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4588
83c81bfe 4589 if (htab->need_plt_stub)
47d89dba
AM
4590 {
4591 /* Set up the .plt stub. */
83c81bfe 4592 memcpy (htab->splt->contents
eea6121a 4593 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4594 plt_stub, sizeof (plt_stub));
4595
83c81bfe
AM
4596 if ((htab->splt->output_offset
4597 + htab->splt->output_section->vma
eea6121a 4598 + htab->splt->size)
894891db
NC
4599 != (sgot->output_offset
4600 + sgot->output_section->vma))
47d89dba
AM
4601 {
4602 (*_bfd_error_handler)
4603 (_(".got section not immediately after .plt section"));
b34976b6 4604 return FALSE;
47d89dba
AM
4605 }
4606 }
4607 }
30667bf3 4608
b34976b6 4609 return TRUE;
30667bf3 4610}
252b5132 4611
30667bf3
AM
4612/* Called when writing out an object file to decide the type of a
4613 symbol. */
4614static int
c39a58e6 4615elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4616{
4617 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4618 return STT_PARISC_MILLI;
4619 else
4620 return type;
252b5132
RH
4621}
4622
4623/* Misc BFD support code. */
30667bf3
AM
4624#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4625#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4626#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4627#define elf_info_to_howto elf_hppa_info_to_howto
4628#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4629
252b5132 4630/* Stuff for the BFD linker. */
c46b7515 4631#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4632#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4633#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4634#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4635#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4636#define elf_backend_check_relocs elf32_hppa_check_relocs
4637#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4638#define elf_backend_fake_sections elf_hppa_fake_sections
4639#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4640#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4641#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4642#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4643#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4644#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4645#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4646#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4647#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4648#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4649#define elf_backend_object_p elf32_hppa_object_p
4650#define elf_backend_final_write_processing elf_hppa_final_write_processing
d1036acb 4651#define elf_backend_post_process_headers _bfd_elf_set_osabi
30667bf3 4652#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4653#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4654#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4655
4656#define elf_backend_can_gc_sections 1
51b64d56 4657#define elf_backend_can_refcount 1
30667bf3
AM
4658#define elf_backend_plt_alignment 2
4659#define elf_backend_want_got_plt 0
4660#define elf_backend_plt_readonly 0
4661#define elf_backend_want_plt_sym 0
74d1c347 4662#define elf_backend_got_header_size 8
f0fe0e16 4663#define elf_backend_rela_normal 1
252b5132
RH
4664
4665#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4666#define TARGET_BIG_NAME "elf32-hppa"
4667#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4668#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4669#define ELF_MACHINE_CODE EM_PARISC
4670#define ELF_MAXPAGESIZE 0x1000
d1036acb 4671#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4672#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4673
4674#include "elf32-target.h"
d952f17a
AM
4675
4676#undef TARGET_BIG_SYM
914dfb0f 4677#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
d952f17a 4678#undef TARGET_BIG_NAME
914dfb0f 4679#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4680#undef ELF_OSABI
9c55345c 4681#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4682#undef elf32_bed
4683#define elf32_bed elf32_hppa_linux_bed
d952f17a 4684
d952f17a 4685#include "elf32-target.h"
225247f0
JT
4686
4687#undef TARGET_BIG_SYM
914dfb0f 4688#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
225247f0 4689#undef TARGET_BIG_NAME
914dfb0f 4690#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4691#undef ELF_OSABI
4692#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4693#undef elf32_bed
4694#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4695
4696#include "elf32-target.h"