bfd/
[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
e5094212 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
4dfe6ac6 3 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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
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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
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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
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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
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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
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87
88 Import stub to call shared library routine from normal object file
89 (multiple sub-space support)
3ee1d854
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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
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141#define PLT_ENTRY_SIZE 8
142#define GOT_ENTRY_SIZE 4
143#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
144
47d89dba
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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
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157/* Section name for stubs is the associated section name plus this
158 string. */
159#define STUB_SUFFIX ".stub"
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{
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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
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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
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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
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211struct elf32_hppa_link_hash_entry
212{
a63e02c7 213 struct elf_link_hash_entry eh;
30667bf3
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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
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226 /* The input section of the reloc. */
227 asection *sec;
30667bf3
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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
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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
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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
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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
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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 {
6c21aa76
NC
953 /* GCC on hppa-linux produces binaries with OSABI=Linux,
954 but the kernel produces corefiles with OSABI=SysV. */
955 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
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
DA
1941 if (eh->root.type == bfd_link_hash_warning)
1942 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 1943
875c0872 1944 info = (struct bfd_link_info *) inf;
9b52905e 1945 hh = hppa_elf_hash_entry (eh);
a8d02d66 1946 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1947 if (htab == NULL)
1948 return FALSE;
1949
a63e02c7 1950 if (htab->etab.dynamic_sections_created
875c0872 1951 && eh->plt.refcount > 0)
e5ee5df1
AM
1952 {
1953 /* Make sure this symbol is output as a dynamic symbol.
1954 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1955 if (eh->dynindx == -1
1956 && !eh->forced_local
1957 && eh->type != STT_PARISC_MILLI)
a8d02d66 1958 {
875c0872 1959 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1960 return FALSE;
e5ee5df1
AM
1961 }
1962
875c0872 1963 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1964 {
067fa4a6
AM
1965 /* Allocate these later. From this point on, h->plabel
1966 means that the plt entry is only used by a plabel.
1967 We'll be using a normal plt entry for this symbol, so
1968 clear the plabel indicator. */
875c0872
DA
1969
1970 hh->plabel = 0;
e5ee5df1 1971 }
875c0872 1972 else if (hh->plabel)
e5ee5df1
AM
1973 {
1974 /* Make an entry in the .plt section for plabel references
1975 that won't have a .plt entry for other reasons. */
875c0872
DA
1976 sec = htab->splt;
1977 eh->plt.offset = sec->size;
1978 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1979 }
1980 else
e5ee5df1
AM
1981 {
1982 /* No .plt entry needed. */
875c0872
DA
1983 eh->plt.offset = (bfd_vma) -1;
1984 eh->needs_plt = 0;
e5ee5df1
AM
1985 }
1986 }
1987 else
1988 {
875c0872
DA
1989 eh->plt.offset = (bfd_vma) -1;
1990 eh->needs_plt = 0;
a8d02d66
AM
1991 }
1992
b34976b6 1993 return TRUE;
a8d02d66
AM
1994}
1995
4dc86686
AM
1996/* Allocate space in .plt, .got and associated reloc sections for
1997 global syms. */
1998
b34976b6 1999static bfd_boolean
875c0872 2000allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
2001{
2002 struct bfd_link_info *info;
83c81bfe 2003 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2004 asection *sec;
2005 struct elf32_hppa_link_hash_entry *hh;
2006 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2007
875c0872 2008 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2009 return TRUE;
73a74a62 2010
875c0872
DA
2011 if (eh->root.type == bfd_link_hash_warning)
2012 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2013
c39a58e6 2014 info = inf;
83c81bfe 2015 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2016 if (htab == NULL)
2017 return FALSE;
2018
875c0872
DA
2019 hh = hppa_elf_hash_entry (eh);
2020
a63e02c7 2021 if (htab->etab.dynamic_sections_created
875c0872
DA
2022 && eh->plt.offset != (bfd_vma) -1
2023 && !hh->plabel
2024 && eh->plt.refcount > 0)
4dc86686 2025 {
e5ee5df1 2026 /* Make an entry in the .plt section. */
875c0872
DA
2027 sec = htab->splt;
2028 eh->plt.offset = sec->size;
2029 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2030
e5ee5df1 2031 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2032 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2033 htab->need_plt_stub = 1;
4dc86686 2034 }
edd21aca 2035
875c0872 2036 if (eh->got.refcount > 0)
4dc86686 2037 {
446f2863
AM
2038 /* Make sure this symbol is output as a dynamic symbol.
2039 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2040 if (eh->dynindx == -1
2041 && !eh->forced_local
2042 && eh->type != STT_PARISC_MILLI)
446f2863 2043 {
875c0872 2044 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2045 return FALSE;
446f2863
AM
2046 }
2047
875c0872
DA
2048 sec = htab->sgot;
2049 eh->got.offset = sec->size;
2050 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2051 /* R_PARISC_TLS_GD* needs two GOT entries */
2052 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2053 sec->size += GOT_ENTRY_SIZE * 2;
2054 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2055 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2056 if (htab->etab.dynamic_sections_created
ce757d15 2057 && (info->shared
875c0872
DA
2058 || (eh->dynindx != -1
2059 && !eh->forced_local)))
ce757d15 2060 {
eea6121a 2061 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2062 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2063 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2064 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2065 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2066 }
4dc86686
AM
2067 }
2068 else
875c0872 2069 eh->got.offset = (bfd_vma) -1;
30667bf3 2070
875c0872 2071 if (hh->dyn_relocs == NULL)
b34976b6 2072 return TRUE;
30667bf3 2073
98ceb8ce
AM
2074 /* If this is a -Bsymbolic shared link, then we need to discard all
2075 space allocated for dynamic pc-relative relocs against symbols
2076 defined in a regular object. For the normal shared case, discard
2077 space for relocs that have become local due to symbol visibility
2078 changes. */
2079 if (info->shared)
446f2863 2080 {
98ceb8ce 2081#if RELATIVE_DYNRELOCS
875c0872 2082 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2083 {
875c0872 2084 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2085
875c0872 2086 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2087 {
875c0872
DA
2088 hdh_p->count -= hdh_p->relative_count;
2089 hdh_p->relative_count = 0;
2090 if (hdh_p->count == 0)
a63e02c7 2091 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2092 else
a63e02c7 2093 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2094 }
2095 }
2096#endif
4fc8051d
AM
2097
2098 /* Also discard relocs on undefined weak syms with non-default
2099 visibility. */
22d606e9 2100 if (hh->dyn_relocs != NULL
875c0872 2101 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2102 {
2103 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2104 hh->dyn_relocs = NULL;
2105
2106 /* Make sure undefined weak symbols are output as a dynamic
2107 symbol in PIEs. */
2108 else if (eh->dynindx == -1
2109 && !eh->forced_local)
2110 {
2111 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2112 return FALSE;
2113 }
2114 }
446f2863 2115 }
98ceb8ce 2116 else
30667bf3 2117 {
98ceb8ce
AM
2118 /* For the non-shared case, discard space for relocs against
2119 symbols which turn out to need copy relocs or are not
2120 dynamic. */
875c0872
DA
2121
2122 if (!eh->non_got_ref
4fc8051d 2123 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2124 && eh->def_dynamic
2125 && !eh->def_regular)
a63e02c7 2126 || (htab->etab.dynamic_sections_created
875c0872
DA
2127 && (eh->root.type == bfd_link_hash_undefweak
2128 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2129 {
2130 /* Make sure this symbol is output as a dynamic symbol.
2131 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2132 if (eh->dynindx == -1
2133 && !eh->forced_local
2134 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2135 {
875c0872 2136 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2137 return FALSE;
98ceb8ce
AM
2138 }
2139
2140 /* If that succeeded, we know we'll be keeping all the
2141 relocs. */
875c0872 2142 if (eh->dynindx != -1)
98ceb8ce
AM
2143 goto keep;
2144 }
446f2863 2145
875c0872 2146 hh->dyn_relocs = NULL;
b34976b6 2147 return TRUE;
98ceb8ce 2148
ec338859 2149 keep: ;
30667bf3 2150 }
30667bf3 2151
98ceb8ce 2152 /* Finally, allocate space. */
a63e02c7 2153 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2154 {
875c0872
DA
2155 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2156 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2157 }
30667bf3 2158
b34976b6 2159 return TRUE;
30667bf3 2160}
30667bf3 2161
d5c73c2f
AM
2162/* This function is called via elf_link_hash_traverse to force
2163 millicode symbols local so they do not end up as globals in the
2164 dynamic symbol table. We ought to be able to do this in
2165 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2166 for all dynamic symbols. Arguably, this is a bug in
2167 elf_adjust_dynamic_symbol. */
2168
b34976b6 2169static bfd_boolean
875c0872 2170clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2171 struct bfd_link_info *info)
d5c73c2f 2172{
875c0872
DA
2173 if (eh->root.type == bfd_link_hash_warning)
2174 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2175
875c0872
DA
2176 if (eh->type == STT_PARISC_MILLI
2177 && !eh->forced_local)
e0522e89 2178 {
875c0872 2179 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2180 }
b34976b6 2181 return TRUE;
d5c73c2f
AM
2182}
2183
98ceb8ce
AM
2184/* Find any dynamic relocs that apply to read-only sections. */
2185
b34976b6 2186static bfd_boolean
875c0872 2187readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2188{
875c0872
DA
2189 struct elf32_hppa_link_hash_entry *hh;
2190 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2191
875c0872
DA
2192 if (eh->root.type == bfd_link_hash_warning)
2193 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2194
875c0872 2195 hh = hppa_elf_hash_entry (eh);
a63e02c7 2196 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2197 {
875c0872 2198 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2199
875c0872 2200 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2201 {
c39a58e6 2202 struct bfd_link_info *info = inf;
98ceb8ce
AM
2203
2204 info->flags |= DF_TEXTREL;
2205
2206 /* Not an error, just cut short the traversal. */
b34976b6 2207 return FALSE;
98ceb8ce
AM
2208 }
2209 }
b34976b6 2210 return TRUE;
98ceb8ce
AM
2211}
2212
30667bf3
AM
2213/* Set the sizes of the dynamic sections. */
2214
b34976b6 2215static bfd_boolean
c39a58e6
AM
2216elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2217 struct bfd_link_info *info)
30667bf3 2218{
83c81bfe 2219 struct elf32_hppa_link_hash_table *htab;
30667bf3 2220 bfd *dynobj;
98ceb8ce 2221 bfd *ibfd;
875c0872 2222 asection *sec;
b34976b6 2223 bfd_boolean relocs;
30667bf3 2224
83c81bfe 2225 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2226 if (htab == NULL)
2227 return FALSE;
2228
a63e02c7 2229 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2230 if (dynobj == NULL)
2231 abort ();
30667bf3 2232
a63e02c7 2233 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2234 {
2235 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2236 if (info->executable)
30667bf3 2237 {
875c0872
DA
2238 sec = bfd_get_section_by_name (dynobj, ".interp");
2239 if (sec == NULL)
49e9d0d3 2240 abort ();
875c0872
DA
2241 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2242 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2243 }
74d1c347 2244
d5c73c2f 2245 /* Force millicode symbols local. */
a63e02c7 2246 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2247 clobber_millicode_symbols,
2248 info);
68fb2e56 2249 }
d5c73c2f 2250
98ceb8ce
AM
2251 /* Set up .got and .plt offsets for local syms, and space for local
2252 dynamic relocs. */
2253 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
68fb2e56
AM
2254 {
2255 bfd_signed_vma *local_got;
2256 bfd_signed_vma *end_local_got;
2257 bfd_signed_vma *local_plt;
2258 bfd_signed_vma *end_local_plt;
2259 bfd_size_type locsymcount;
2260 Elf_Internal_Shdr *symtab_hdr;
2261 asection *srel;
9b52905e 2262 char *local_tls_type;
74d1c347 2263
98ceb8ce 2264 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2265 continue;
4dc86686 2266
875c0872 2267 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2268 {
875c0872 2269 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2270
875c0872
DA
2271 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2272 elf_section_data (sec)->local_dynrel);
2273 hdh_p != NULL;
a63e02c7 2274 hdh_p = hdh_p->hdh_next)
98ceb8ce 2275 {
875c0872
DA
2276 if (!bfd_is_abs_section (hdh_p->sec)
2277 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2278 {
2279 /* Input section has been discarded, either because
2280 it is a copy of a linkonce section or due to
2281 linker script /DISCARD/, so we'll be discarding
2282 the relocs too. */
2283 }
875c0872 2284 else if (hdh_p->count != 0)
ec338859 2285 {
875c0872
DA
2286 srel = elf_section_data (hdh_p->sec)->sreloc;
2287 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2288 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2289 info->flags |= DF_TEXTREL;
ec338859 2290 }
98ceb8ce
AM
2291 }
2292 }
2293
2294 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2295 if (!local_got)
2296 continue;
74d1c347 2297
98ceb8ce 2298 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2299 locsymcount = symtab_hdr->sh_info;
2300 end_local_got = local_got + locsymcount;
9b52905e 2301 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2302 sec = htab->sgot;
83c81bfe 2303 srel = htab->srelgot;
68fb2e56
AM
2304 for (; local_got < end_local_got; ++local_got)
2305 {
2306 if (*local_got > 0)
4dc86686 2307 {
875c0872
DA
2308 *local_got = sec->size;
2309 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2310 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2311 sec->size += 2 * GOT_ENTRY_SIZE;
2312 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2313 sec->size += GOT_ENTRY_SIZE;
875c0872 2314 if (info->shared)
9b52905e
NC
2315 {
2316 srel->size += sizeof (Elf32_External_Rela);
2317 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2318 srel->size += 2 * sizeof (Elf32_External_Rela);
2319 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2320 srel->size += sizeof (Elf32_External_Rela);
2321 }
4dc86686 2322 }
68fb2e56
AM
2323 else
2324 *local_got = (bfd_vma) -1;
9b52905e
NC
2325
2326 ++local_tls_type;
68fb2e56 2327 }
74d1c347 2328
68fb2e56
AM
2329 local_plt = end_local_got;
2330 end_local_plt = local_plt + locsymcount;
a63e02c7 2331 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2332 {
2333 /* Won't be used, but be safe. */
2334 for (; local_plt < end_local_plt; ++local_plt)
2335 *local_plt = (bfd_vma) -1;
2336 }
2337 else
2338 {
875c0872 2339 sec = htab->splt;
83c81bfe 2340 srel = htab->srelplt;
74d1c347
AM
2341 for (; local_plt < end_local_plt; ++local_plt)
2342 {
2343 if (*local_plt > 0)
2344 {
875c0872
DA
2345 *local_plt = sec->size;
2346 sec->size += PLT_ENTRY_SIZE;
74d1c347 2347 if (info->shared)
eea6121a 2348 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2349 }
2350 else
2351 *local_plt = (bfd_vma) -1;
2352 }
2353 }
30667bf3 2354 }
9b52905e
NC
2355
2356 if (htab->tls_ldm_got.refcount > 0)
2357 {
2358 /* Allocate 2 got entries and 1 dynamic reloc for
2359 R_PARISC_TLS_DTPMOD32 relocs. */
2360 htab->tls_ldm_got.offset = htab->sgot->size;
2361 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2362 htab->srelgot->size += sizeof (Elf32_External_Rela);
2363 }
2364 else
2365 htab->tls_ldm_got.offset = -1;
30667bf3 2366
e5ee5df1
AM
2367 /* Do all the .plt entries without relocs first. The dynamic linker
2368 uses the last .plt reloc to find the end of the .plt (and hence
2369 the start of the .got) for lazy linking. */
a63e02c7 2370 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2371
98ceb8ce
AM
2372 /* Allocate global sym .plt and .got entries, and space for global
2373 sym dynamic relocs. */
a63e02c7 2374 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2375
2376 /* The check_relocs and adjust_dynamic_symbol entry points have
2377 determined the sizes of the various dynamic sections. Allocate
2378 memory for them. */
b34976b6 2379 relocs = FALSE;
875c0872 2380 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2381 {
875c0872 2382 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2383 continue;
2384
875c0872 2385 if (sec == htab->splt)
68fb2e56 2386 {
83c81bfe 2387 if (htab->need_plt_stub)
68fb2e56
AM
2388 {
2389 /* Make space for the plt stub at the end of the .plt
2390 section. We want this stub right at the end, up
2391 against the .got section. */
83c81bfe 2392 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2393 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2394 bfd_size_type mask;
30667bf3 2395
68fb2e56 2396 if (gotalign > pltalign)
875c0872 2397 bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2398 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2399 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2400 }
2401 }
c456f082
AM
2402 else if (sec == htab->sgot
2403 || sec == htab->sdynbss)
68fb2e56 2404 ;
0112cd26 2405 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2406 {
875c0872 2407 if (sec->size != 0)
30667bf3 2408 {
4e12ff7f
AM
2409 /* Remember whether there are any reloc sections other
2410 than .rela.plt. */
875c0872 2411 if (sec != htab->srelplt)
b34976b6 2412 relocs = TRUE;
47d89dba 2413
30667bf3
AM
2414 /* We use the reloc_count field as a counter if we need
2415 to copy relocs into the output file. */
875c0872 2416 sec->reloc_count = 0;
30667bf3
AM
2417 }
2418 }
30667bf3
AM
2419 else
2420 {
2421 /* It's not one of our sections, so don't allocate space. */
2422 continue;
2423 }
2424
875c0872 2425 if (sec->size == 0)
30667bf3
AM
2426 {
2427 /* If we don't need this section, strip it from the
2428 output file. This is mostly to handle .rela.bss and
2429 .rela.plt. We must create both sections in
2430 create_dynamic_sections, because they must be created
2431 before the linker maps input sections to output
2432 sections. The linker does that before
2433 adjust_dynamic_symbol is called, and it is that
2434 function which decides whether anything needs to go
2435 into these sections. */
875c0872 2436 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2437 continue;
2438 }
2439
c456f082
AM
2440 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2441 continue;
2442
30667bf3
AM
2443 /* Allocate memory for the section contents. Zero it, because
2444 we may not fill in all the reloc sections. */
875c0872 2445 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2446 if (sec->contents == NULL)
b34976b6 2447 return FALSE;
30667bf3
AM
2448 }
2449
a63e02c7 2450 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2451 {
2452 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2453 actually has nothing to do with the PLT, it is how we
2454 communicate the LTP value of a load module to the dynamic
2455 linker. */
dc810e39 2456#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2457 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2458
2459 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2460 return FALSE;
30667bf3
AM
2461
2462 /* Add some entries to the .dynamic section. We fill in the
2463 values later, in elf32_hppa_finish_dynamic_sections, but we
2464 must add the entries now so that we get the correct size for
2465 the .dynamic section. The DT_DEBUG entry is filled in by the
2466 dynamic linker and used by the debugger. */
3c27d551 2467 if (info->executable)
30667bf3 2468 {
dc810e39 2469 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2470 return FALSE;
30667bf3
AM
2471 }
2472
eea6121a 2473 if (htab->srelplt->size != 0)
30667bf3 2474 {
dc810e39
AM
2475 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2476 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2477 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2478 return FALSE;
30667bf3
AM
2479 }
2480
2481 if (relocs)
2482 {
dc810e39
AM
2483 if (!add_dynamic_entry (DT_RELA, 0)
2484 || !add_dynamic_entry (DT_RELASZ, 0)
2485 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2486 return FALSE;
30667bf3 2487
98ceb8ce
AM
2488 /* If any dynamic relocs apply to a read-only section,
2489 then we need a DT_TEXTREL entry. */
248866a8 2490 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2491 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2492
2493 if ((info->flags & DF_TEXTREL) != 0)
2494 {
2495 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2496 return FALSE;
98ceb8ce 2497 }
30667bf3
AM
2498 }
2499 }
dc810e39 2500#undef add_dynamic_entry
30667bf3 2501
b34976b6 2502 return TRUE;
30667bf3
AM
2503}
2504
30667bf3
AM
2505/* External entry points for sizing and building linker stubs. */
2506
b4655ea9
AM
2507/* Set up various things so that we can make a list of input sections
2508 for each output section included in the link. Returns -1 on error,
cedb70c5 2509 0 when no stubs will be needed, and 1 on success. */
30667bf3 2510
b4655ea9 2511int
c39a58e6 2512elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2513{
2514 bfd *input_bfd;
b4655ea9
AM
2515 unsigned int bfd_count;
2516 int top_id, top_index;
30667bf3 2517 asection *section;
25f72752 2518 asection **input_list, **list;
dc810e39 2519 bfd_size_type amt;
b4655ea9 2520 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2521
4dfe6ac6
NC
2522 if (htab == NULL)
2523 return -1;
2524
1badb539
AM
2525 /* Count the number of input BFDs and find the top input section id. */
2526 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2527 input_bfd != NULL;
2528 input_bfd = input_bfd->link_next)
2529 {
2530 bfd_count += 1;
25f72752
AM
2531 for (section = input_bfd->sections;
2532 section != NULL;
2533 section = section->next)
2534 {
2535 if (top_id < section->id)
2536 top_id = section->id;
2537 }
30667bf3 2538 }
b4655ea9 2539 htab->bfd_count = bfd_count;
30667bf3 2540
dc810e39 2541 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2542 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2543 if (htab->stub_group == NULL)
b4655ea9 2544 return -1;
1badb539 2545
b4655ea9 2546 /* We can't use output_bfd->section_count here to find the top output
1badb539 2547 section index as some sections may have been removed, and
8423293d 2548 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2549 for (section = output_bfd->sections, top_index = 0;
2550 section != NULL;
2551 section = section->next)
2552 {
2553 if (top_index < section->index)
2554 top_index = section->index;
2555 }
2556
b4655ea9 2557 htab->top_index = top_index;
dc810e39 2558 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2559 input_list = bfd_malloc (amt);
b4655ea9 2560 htab->input_list = input_list;
25f72752 2561 if (input_list == NULL)
b4655ea9 2562 return -1;
25f72752 2563
1badb539
AM
2564 /* For sections we aren't interested in, mark their entries with a
2565 value we can check later. */
2566 list = input_list + top_index;
2567 do
2568 *list = bfd_abs_section_ptr;
2569 while (list-- != input_list);
2570
2571 for (section = output_bfd->sections;
2572 section != NULL;
2573 section = section->next)
2574 {
47d89dba 2575 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2576 input_list[section->index] = NULL;
2577 }
2578
b4655ea9
AM
2579 return 1;
2580}
2581
2582/* The linker repeatedly calls this function for each input section,
2583 in the order that input sections are linked into output sections.
2584 Build lists of input sections to determine groupings between which
2585 we may insert linker stubs. */
2586
2587void
c39a58e6 2588elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2589{
2590 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2591
4dfe6ac6
NC
2592 if (htab == NULL)
2593 return;
2594
b4655ea9 2595 if (isec->output_section->index <= htab->top_index)
25f72752 2596 {
b4655ea9
AM
2597 asection **list = htab->input_list + isec->output_section->index;
2598 if (*list != bfd_abs_section_ptr)
25f72752 2599 {
b4655ea9 2600 /* Steal the link_sec pointer for our list. */
83c81bfe 2601#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2602 /* This happens to make the list in reverse order,
2603 which is what we want. */
2604 PREV_SEC (isec) = *list;
2605 *list = isec;
25f72752
AM
2606 }
2607 }
b4655ea9 2608}
25f72752 2609
b4655ea9
AM
2610/* See whether we can group stub sections together. Grouping stub
2611 sections may result in fewer stubs. More importantly, we need to
2612 put all .init* and .fini* stubs at the beginning of the .init or
2613 .fini output sections respectively, because glibc splits the
2614 _init and _fini functions into multiple parts. Putting a stub in
2615 the middle of a function is not a good idea. */
2616
2617static void
c39a58e6
AM
2618group_sections (struct elf32_hppa_link_hash_table *htab,
2619 bfd_size_type stub_group_size,
2620 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2621{
2622 asection **list = htab->input_list + htab->top_index;
1badb539 2623 do
25f72752
AM
2624 {
2625 asection *tail = *list;
1badb539
AM
2626 if (tail == bfd_abs_section_ptr)
2627 continue;
25f72752
AM
2628 while (tail != NULL)
2629 {
2630 asection *curr;
2631 asection *prev;
2632 bfd_size_type total;
00b28bb0 2633 bfd_boolean big_sec;
25f72752
AM
2634
2635 curr = tail;
eea6121a 2636 total = tail->size;
00b28bb0
AM
2637 big_sec = total >= stub_group_size;
2638
25f72752
AM
2639 while ((prev = PREV_SEC (curr)) != NULL
2640 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2641 < stub_group_size))
25f72752
AM
2642 curr = prev;
2643
2644 /* OK, the size from the start of CURR to the end is less
a248e267 2645 than 240000 bytes and thus can be handled by one stub
25f72752 2646 section. (or the tail section is itself larger than
a248e267 2647 240000 bytes, in which case we may be toast.)
25f72752
AM
2648 We should really be keeping track of the total size of
2649 stubs added here, as stubs contribute to the final output
2650 section size. That's a little tricky, and this way will
a248e267
AM
2651 only break if stubs added total more than 22144 bytes, or
2652 2768 long branch stubs. It seems unlikely for more than
2653 2768 different functions to be called, especially from
2654 code only 240000 bytes long. This limit used to be
2655 250000, but c++ code tends to generate lots of little
2656 functions, and sometimes violated the assumption. */
25f72752
AM
2657 do
2658 {
2659 prev = PREV_SEC (tail);
2660 /* Set up this stub group. */
83c81bfe 2661 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2662 }
2663 while (tail != curr && (tail = prev) != NULL);
2664
a248e267 2665 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2666 bytes before the stub section can be handled by it too.
2667 Don't do this if we have a really large section after the
2668 stubs, as adding more stubs increases the chance that
2669 branches may not reach into the stub section. */
2670 if (!stubs_always_before_branch && !big_sec)
25f72752 2671 {
47d89dba
AM
2672 total = 0;
2673 while (prev != NULL
2674 && ((total += tail->output_offset - prev->output_offset)
2675 < stub_group_size))
2676 {
2677 tail = prev;
2678 prev = PREV_SEC (tail);
83c81bfe 2679 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2680 }
25f72752
AM
2681 }
2682 tail = prev;
2683 }
2684 }
b4655ea9
AM
2685 while (list-- != htab->input_list);
2686 free (htab->input_list);
1badb539 2687#undef PREV_SEC
b4655ea9
AM
2688}
2689
2690/* Read in all local syms for all input bfds, and create hash entries
2691 for export stubs if we are building a multi-subspace shared lib.
2692 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2693
2694static int
c39a58e6 2695get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2696{
2697 unsigned int bfd_indx;
2698 Elf_Internal_Sym *local_syms, **all_local_syms;
2699 int stub_changed = 0;
2700 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2701
4dfe6ac6
NC
2702 if (htab == NULL)
2703 return -1;
2704
30667bf3
AM
2705 /* We want to read in symbol extension records only once. To do this
2706 we need to read in the local symbols in parallel and save them for
2707 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2708 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2709 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2710 htab->all_local_syms = all_local_syms;
30667bf3 2711 if (all_local_syms == NULL)
b4655ea9 2712 return -1;
30667bf3
AM
2713
2714 /* Walk over all the input BFDs, swapping in local symbols.
2715 If we are creating a shared library, create hash entries for the
2716 export stubs. */
b4655ea9 2717 for (bfd_indx = 0;
30667bf3 2718 input_bfd != NULL;
25f72752 2719 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2720 {
2721 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2722
252b5132
RH
2723 /* We'll need the symbol table in a second. */
2724 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2725 if (symtab_hdr->sh_info == 0)
2726 continue;
2727
6cdc0ccc
AM
2728 /* We need an array of the local symbols attached to the input bfd. */
2729 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2730 if (local_syms == NULL)
edd21aca 2731 {
6cdc0ccc
AM
2732 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2733 symtab_hdr->sh_info, 0,
2734 NULL, NULL, NULL);
2735 /* Cache them for elf_link_input_bfd. */
2736 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2737 }
6cdc0ccc
AM
2738 if (local_syms == NULL)
2739 return -1;
edd21aca 2740
6cdc0ccc 2741 all_local_syms[bfd_indx] = local_syms;
edd21aca 2742
83c81bfe 2743 if (info->shared && htab->multi_subspace)
30667bf3 2744 {
875c0872
DA
2745 struct elf_link_hash_entry **eh_syms;
2746 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2747 unsigned int symcount;
2748
2749 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2750 - symtab_hdr->sh_info);
875c0872
DA
2751 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2752 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2753
2754 /* Look through the global syms for functions; We need to
2755 build export stubs for all globally visible functions. */
875c0872 2756 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2757 {
875c0872 2758 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2759
875c0872 2760 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2761
a63e02c7
DA
2762 while (hh->eh.root.type == bfd_link_hash_indirect
2763 || hh->eh.root.type == bfd_link_hash_warning)
2764 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2765
2766 /* At this point in the link, undefined syms have been
2767 resolved, so we need to check that the symbol was
2768 defined in this BFD. */
a63e02c7
DA
2769 if ((hh->eh.root.type == bfd_link_hash_defined
2770 || hh->eh.root.type == bfd_link_hash_defweak)
2771 && hh->eh.type == STT_FUNC
2772 && hh->eh.root.u.def.section->output_section != NULL
2773 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2774 == output_bfd)
a63e02c7
DA
2775 && hh->eh.root.u.def.section->owner == input_bfd
2776 && hh->eh.def_regular
2777 && !hh->eh.forced_local
2778 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2779 {
2780 asection *sec;
2781 const char *stub_name;
875c0872 2782 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2783
a63e02c7 2784 sec = hh->eh.root.u.def.section;
9b52905e 2785 stub_name = hh_name (hh);
a63e02c7 2786 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2787 stub_name,
b34976b6 2788 FALSE, FALSE);
875c0872 2789 if (hsh == NULL)
30667bf3 2790 {
875c0872
DA
2791 hsh = hppa_add_stub (stub_name, sec, htab);
2792 if (!hsh)
b4655ea9 2793 return -1;
30667bf3 2794
a63e02c7
DA
2795 hsh->target_value = hh->eh.root.u.def.value;
2796 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2797 hsh->stub_type = hppa_stub_export;
a63e02c7 2798 hsh->hh = hh;
30667bf3
AM
2799 stub_changed = 1;
2800 }
2801 else
2802 {
d003868e
AM
2803 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2804 input_bfd,
8f615d07 2805 stub_name);
30667bf3
AM
2806 }
2807 }
2808 }
30667bf3
AM
2809 }
2810 }
edd21aca 2811
b4655ea9
AM
2812 return stub_changed;
2813}
2814
2815/* Determine and set the size of the stub section for a final link.
2816
2817 The basic idea here is to examine all the relocations looking for
2818 PC-relative calls to a target that is unreachable with a "bl"
2819 instruction. */
2820
b34976b6 2821bfd_boolean
c39a58e6
AM
2822elf32_hppa_size_stubs
2823 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2824 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2825 asection * (*add_stub_section) (const char *, asection *),
2826 void (*layout_sections_again) (void))
b4655ea9
AM
2827{
2828 bfd_size_type stub_group_size;
b34976b6
AM
2829 bfd_boolean stubs_always_before_branch;
2830 bfd_boolean stub_changed;
b4655ea9
AM
2831 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2832
4dfe6ac6
NC
2833 if (htab == NULL)
2834 return FALSE;
2835
b4655ea9
AM
2836 /* Stash our params away. */
2837 htab->stub_bfd = stub_bfd;
2838 htab->multi_subspace = multi_subspace;
2839 htab->add_stub_section = add_stub_section;
2840 htab->layout_sections_again = layout_sections_again;
2841 stubs_always_before_branch = group_size < 0;
2842 if (group_size < 0)
2843 stub_group_size = -group_size;
2844 else
2845 stub_group_size = group_size;
2846 if (stub_group_size == 1)
2847 {
2848 /* Default values. */
acc990f2
AM
2849 if (stubs_always_before_branch)
2850 {
2851 stub_group_size = 7680000;
2852 if (htab->has_17bit_branch || htab->multi_subspace)
2853 stub_group_size = 240000;
2854 if (htab->has_12bit_branch)
2855 stub_group_size = 7500;
2856 }
2857 else
2858 {
2859 stub_group_size = 6971392;
2860 if (htab->has_17bit_branch || htab->multi_subspace)
2861 stub_group_size = 217856;
2862 if (htab->has_12bit_branch)
2863 stub_group_size = 6808;
2864 }
b4655ea9
AM
2865 }
2866
2867 group_sections (htab, stub_group_size, stubs_always_before_branch);
2868
2869 switch (get_local_syms (output_bfd, info->input_bfds, info))
2870 {
2871 default:
2872 if (htab->all_local_syms)
2873 goto error_ret_free_local;
b34976b6 2874 return FALSE;
b4655ea9
AM
2875
2876 case 0:
b34976b6 2877 stub_changed = FALSE;
b4655ea9
AM
2878 break;
2879
2880 case 1:
b34976b6 2881 stub_changed = TRUE;
b4655ea9
AM
2882 break;
2883 }
2884
edd21aca
AM
2885 while (1)
2886 {
b4655ea9
AM
2887 bfd *input_bfd;
2888 unsigned int bfd_indx;
30667bf3
AM
2889 asection *stub_sec;
2890
25f72752 2891 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2892 input_bfd != NULL;
25f72752 2893 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2894 {
2895 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2896 asection *section;
2897 Elf_Internal_Sym *local_syms;
30667bf3
AM
2898
2899 /* We'll need the symbol table in a second. */
2900 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2901 if (symtab_hdr->sh_info == 0)
2902 continue;
2903
b4655ea9 2904 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2905
2906 /* Walk over each section attached to the input bfd. */
2907 for (section = input_bfd->sections;
2908 section != NULL;
25f72752 2909 section = section->next)
30667bf3 2910 {
30667bf3
AM
2911 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2912
2913 /* If there aren't any relocs, then there's nothing more
2914 to do. */
2915 if ((section->flags & SEC_RELOC) == 0
2916 || section->reloc_count == 0)
2917 continue;
2918
25f72752
AM
2919 /* If this section is a link-once section that will be
2920 discarded, then don't create any stubs. */
2921 if (section->output_section == NULL
2922 || section->output_section->owner != output_bfd)
2923 continue;
2924
1e2f5b6e
AM
2925 /* Get the relocs. */
2926 internal_relocs
c39a58e6 2927 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2928 info->keep_memory);
30667bf3 2929 if (internal_relocs == NULL)
1e2f5b6e 2930 goto error_ret_free_local;
30667bf3
AM
2931
2932 /* Now examine each relocation. */
2933 irela = internal_relocs;
2934 irelaend = irela + section->reloc_count;
2935 for (; irela < irelaend; irela++)
2936 {
2937 unsigned int r_type, r_indx;
2938 enum elf32_hppa_stub_type stub_type;
875c0872 2939 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2940 asection *sym_sec;
2941 bfd_vma sym_value;
2942 bfd_vma destination;
875c0872 2943 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2944 char *stub_name;
25f72752 2945 const asection *id_sec;
30667bf3
AM
2946
2947 r_type = ELF32_R_TYPE (irela->r_info);
2948 r_indx = ELF32_R_SYM (irela->r_info);
2949
2950 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2951 {
2952 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2953 error_ret_free_internal:
2954 if (elf_section_data (section)->relocs == NULL)
2955 free (internal_relocs);
2956 goto error_ret_free_local;
30667bf3
AM
2957 }
2958
2959 /* Only look for stubs on call instructions. */
2960 if (r_type != (unsigned int) R_PARISC_PCREL12F
2961 && r_type != (unsigned int) R_PARISC_PCREL17F
2962 && r_type != (unsigned int) R_PARISC_PCREL22F)
2963 continue;
2964
2965 /* Now determine the call target, its name, value,
2966 section. */
2967 sym_sec = NULL;
2968 sym_value = 0;
2969 destination = 0;
875c0872 2970 hh = NULL;
30667bf3
AM
2971 if (r_indx < symtab_hdr->sh_info)
2972 {
2973 /* It's a local symbol. */
2974 Elf_Internal_Sym *sym;
2975 Elf_Internal_Shdr *hdr;
4fbb74a6 2976 unsigned int shndx;
30667bf3
AM
2977
2978 sym = local_syms + r_indx;
30667bf3
AM
2979 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2980 sym_value = sym->st_value;
4fbb74a6
AM
2981 shndx = sym->st_shndx;
2982 if (shndx < elf_numsections (input_bfd))
2983 {
2984 hdr = elf_elfsections (input_bfd)[shndx];
2985 sym_sec = hdr->bfd_section;
2986 destination = (sym_value + irela->r_addend
2987 + sym_sec->output_offset
2988 + sym_sec->output_section->vma);
2989 }
30667bf3
AM
2990 }
2991 else
2992 {
2993 /* It's an external symbol. */
2994 int e_indx;
2995
2996 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2997 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2998
a63e02c7
DA
2999 while (hh->eh.root.type == bfd_link_hash_indirect
3000 || hh->eh.root.type == bfd_link_hash_warning)
3001 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 3002
a63e02c7
DA
3003 if (hh->eh.root.type == bfd_link_hash_defined
3004 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 3005 {
a63e02c7
DA
3006 sym_sec = hh->eh.root.u.def.section;
3007 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
3008 if (sym_sec->output_section != NULL)
3009 destination = (sym_value + irela->r_addend
3010 + sym_sec->output_offset
3011 + sym_sec->output_section->vma);
3012 }
a63e02c7 3013 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
3014 {
3015 if (! info->shared)
3016 continue;
3017 }
a63e02c7 3018 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 3019 {
59c2e50f 3020 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 3021 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3022 == STV_DEFAULT)
a63e02c7 3023 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3024 continue;
3025 }
30667bf3
AM
3026 else
3027 {
3028 bfd_set_error (bfd_error_bad_value);
3029 goto error_ret_free_internal;
3030 }
3031 }
3032
3033 /* Determine what (if any) linker stub is needed. */
875c0872 3034 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3035 destination, info);
30667bf3
AM
3036 if (stub_type == hppa_stub_none)
3037 continue;
3038
25f72752 3039 /* Support for grouping stub sections. */
83c81bfe 3040 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3041
30667bf3 3042 /* Get the name of this stub. */
875c0872 3043 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3044 if (!stub_name)
3045 goto error_ret_free_internal;
3046
a63e02c7 3047 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3048 stub_name,
b34976b6 3049 FALSE, FALSE);
875c0872 3050 if (hsh != NULL)
30667bf3
AM
3051 {
3052 /* The proper stub has already been created. */
3053 free (stub_name);
3054 continue;
3055 }
3056
875c0872
DA
3057 hsh = hppa_add_stub (stub_name, section, htab);
3058 if (hsh == NULL)
30667bf3
AM
3059 {
3060 free (stub_name);
1e2f5b6e 3061 goto error_ret_free_internal;
30667bf3
AM
3062 }
3063
875c0872
DA
3064 hsh->target_value = sym_value;
3065 hsh->target_section = sym_sec;
3066 hsh->stub_type = stub_type;
30667bf3
AM
3067 if (info->shared)
3068 {
3069 if (stub_type == hppa_stub_import)
875c0872 3070 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3071 else if (stub_type == hppa_stub_long_branch)
875c0872 3072 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3073 }
a63e02c7 3074 hsh->hh = hh;
b34976b6 3075 stub_changed = TRUE;
30667bf3
AM
3076 }
3077
3078 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3079 if (elf_section_data (section)->relocs == NULL)
3080 free (internal_relocs);
30667bf3
AM
3081 }
3082 }
3083
3084 if (!stub_changed)
3085 break;
3086
3087 /* OK, we've added some stubs. Find out the new size of the
3088 stub sections. */
83c81bfe 3089 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3090 stub_sec != NULL;
3091 stub_sec = stub_sec->next)
eea6121a 3092 stub_sec->size = 0;
74d1c347 3093
a63e02c7 3094 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3095
30667bf3 3096 /* Ask the linker to do its stuff. */
83c81bfe 3097 (*htab->layout_sections_again) ();
b34976b6 3098 stub_changed = FALSE;
30667bf3
AM
3099 }
3100
6cdc0ccc 3101 free (htab->all_local_syms);
b34976b6 3102 return TRUE;
30667bf3
AM
3103
3104 error_ret_free_local:
b4655ea9 3105 free (htab->all_local_syms);
b34976b6 3106 return FALSE;
30667bf3
AM
3107}
3108
30667bf3
AM
3109/* For a final link, this function is called after we have sized the
3110 stubs to provide a value for __gp. */
3111
b34976b6 3112bfd_boolean
c39a58e6 3113elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3114{
b4655ea9
AM
3115 struct bfd_link_hash_entry *h;
3116 asection *sec = NULL;
3117 bfd_vma gp_val = 0;
83c81bfe 3118 struct elf32_hppa_link_hash_table *htab;
30667bf3 3119
83c81bfe 3120 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3121 if (htab == NULL)
3122 return FALSE;
3123
a63e02c7 3124 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3125
df8634e3 3126 if (h != NULL
b4655ea9
AM
3127 && (h->type == bfd_link_hash_defined
3128 || h->type == bfd_link_hash_defweak))
30667bf3 3129 {
b4655ea9
AM
3130 gp_val = h->u.def.value;
3131 sec = h->u.def.section;
30667bf3
AM
3132 }
3133 else
3134 {
0eddce27
AM
3135 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3136 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3137
74d1c347
AM
3138 /* Choose to point our LTP at, in this order, one of .plt, .got,
3139 or .data, if these sections exist. In the case of choosing
3140 .plt try to make the LTP ideal for addressing anywhere in the
3141 .plt or .got with a 14 bit signed offset. Typically, the end
3142 of the .plt is the start of the .got, so choose .plt + 0x2000
3143 if either the .plt or .got is larger than 0x2000. If both
3144 the .plt and .got are smaller than 0x2000, choose the end of
3145 the .plt section. */
225247f0
JT
3146 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3147 ? NULL : splt;
74d1c347 3148 if (sec != NULL)
30667bf3 3149 {
eea6121a
AM
3150 gp_val = sec->size;
3151 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3152 {
3153 gp_val = 0x2000;
3154 }
3155 }
3156 else
3157 {
b4655ea9 3158 sec = sgot;
74d1c347
AM
3159 if (sec != NULL)
3160 {
225247f0
JT
3161 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3162 {
3163 /* We know we don't have a .plt. If .got is large,
3164 offset our LTP. */
3165 if (sec->size > 0x2000)
3166 gp_val = 0x2000;
3167 }
74d1c347
AM
3168 }
3169 else
3170 {
3171 /* No .plt or .got. Who cares what the LTP is? */
3172 sec = bfd_get_section_by_name (abfd, ".data");
3173 }
30667bf3 3174 }
df8634e3
AM
3175
3176 if (h != NULL)
3177 {
b4655ea9
AM
3178 h->type = bfd_link_hash_defined;
3179 h->u.def.value = gp_val;
df8634e3 3180 if (sec != NULL)
b4655ea9 3181 h->u.def.section = sec;
df8634e3 3182 else
b4655ea9 3183 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3184 }
30667bf3
AM
3185 }
3186
b32b5d6e 3187 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3188 gp_val += sec->output_section->vma + sec->output_offset;
3189
3190 elf_gp (abfd) = gp_val;
b34976b6 3191 return TRUE;
30667bf3
AM
3192}
3193
30667bf3
AM
3194/* Build all the stubs associated with the current output file. The
3195 stubs are kept in a hash table attached to the main linker hash
3196 table. We also set up the .plt entries for statically linked PIC
3197 functions here. This function is called via hppaelf_finish in the
3198 linker. */
3199
b34976b6 3200bfd_boolean
c39a58e6 3201elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3202{
3203 asection *stub_sec;
3204 struct bfd_hash_table *table;
83c81bfe 3205 struct elf32_hppa_link_hash_table *htab;
30667bf3 3206
83c81bfe 3207 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3208 if (htab == NULL)
3209 return FALSE;
30667bf3 3210
83c81bfe 3211 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3212 stub_sec != NULL;
3213 stub_sec = stub_sec->next)
3214 {
dc810e39 3215 bfd_size_type size;
30667bf3
AM
3216
3217 /* Allocate memory to hold the linker stubs. */
eea6121a 3218 size = stub_sec->size;
c39a58e6 3219 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3220 if (stub_sec->contents == NULL && size != 0)
b34976b6 3221 return FALSE;
eea6121a 3222 stub_sec->size = 0;
30667bf3
AM
3223 }
3224
3225 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3226 table = &htab->bstab;
30667bf3
AM
3227 bfd_hash_traverse (table, hppa_build_one_stub, info);
3228
b34976b6 3229 return TRUE;
30667bf3
AM
3230}
3231
9b52905e
NC
3232/* Return the base vma address which should be subtracted from the real
3233 address when resolving a dtpoff relocation.
3234 This is PT_TLS segment p_vaddr. */
3235
3236static bfd_vma
3237dtpoff_base (struct bfd_link_info *info)
3238{
3239 /* If tls_sec is NULL, we should have signalled an error already. */
3240 if (elf_hash_table (info)->tls_sec == NULL)
3241 return 0;
3242 return elf_hash_table (info)->tls_sec->vma;
3243}
3244
3245/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3246
3247static bfd_vma
3248tpoff (struct bfd_link_info *info, bfd_vma address)
3249{
3250 struct elf_link_hash_table *htab = elf_hash_table (info);
3251
3252 /* If tls_sec is NULL, we should have signalled an error already. */
3253 if (htab->tls_sec == NULL)
3254 return 0;
3255 /* hppa TLS ABI is variant I and static TLS block start just after
3256 tcbhead structure which has 2 pointer fields. */
3257 return (address - htab->tls_sec->vma
3258 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3259}
3260
c46b7515
AM
3261/* Perform a final link. */
3262
b34976b6 3263static bfd_boolean
c39a58e6 3264elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3265{
4dc86686 3266 /* Invoke the regular ELF linker to do all the work. */
c152c796 3267 if (!bfd_elf_final_link (abfd, info))
b34976b6 3268 return FALSE;
c46b7515
AM
3269
3270 /* If we're producing a final executable, sort the contents of the
985142a4 3271 unwind section. */
d9f40817
DA
3272 if (info->relocatable)
3273 return TRUE;
3274
46fe4e66 3275 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3276}
3277
3278/* Record the lowest address for the data and text segments. */
3279
3280static void
2ea37f1c 3281hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3282{
83c81bfe 3283 struct elf32_hppa_link_hash_table *htab;
c46b7515 3284
875c0872 3285 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3286 if (htab == NULL)
3287 return;
c46b7515
AM
3288
3289 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3290 {
2ea37f1c
NC
3291 bfd_vma value;
3292 Elf_Internal_Phdr *p;
3293
3294 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3295 BFD_ASSERT (p != NULL);
3296 value = p->p_vaddr;
c46b7515
AM
3297
3298 if ((section->flags & SEC_READONLY) != 0)
3299 {
83c81bfe
AM
3300 if (value < htab->text_segment_base)
3301 htab->text_segment_base = value;
c46b7515
AM
3302 }
3303 else
3304 {
83c81bfe
AM
3305 if (value < htab->data_segment_base)
3306 htab->data_segment_base = value;
c46b7515
AM
3307 }
3308 }
3309}
3310
30667bf3
AM
3311/* Perform a relocation as part of a final link. */
3312
3313static bfd_reloc_status_type
c39a58e6
AM
3314final_link_relocate (asection *input_section,
3315 bfd_byte *contents,
875c0872 3316 const Elf_Internal_Rela *rela,
c39a58e6
AM
3317 bfd_vma value,
3318 struct elf32_hppa_link_hash_table *htab,
3319 asection *sym_sec,
875c0872 3320 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3321 struct bfd_link_info *info)
30667bf3
AM
3322{
3323 int insn;
875c0872 3324 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3325 unsigned int orig_r_type = r_type;
30667bf3
AM
3326 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3327 int r_format = howto->bitsize;
3328 enum hppa_reloc_field_selector_type_alt r_field;
3329 bfd *input_bfd = input_section->owner;
875c0872 3330 bfd_vma offset = rela->r_offset;
30667bf3
AM
3331 bfd_vma max_branch_offset = 0;
3332 bfd_byte *hit_data = contents + offset;
875c0872 3333 bfd_signed_vma addend = rela->r_addend;
30667bf3 3334 bfd_vma location;
875c0872
DA
3335 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3336 int val;
30667bf3
AM
3337
3338 if (r_type == R_PARISC_NONE)
3339 return bfd_reloc_ok;
3340
3341 insn = bfd_get_32 (input_bfd, hit_data);
3342
3343 /* Find out where we are and where we're going. */
3344 location = (offset +
3345 input_section->output_offset +
3346 input_section->output_section->vma);
3347
a252afa4
DA
3348 /* If we are not building a shared library, convert DLTIND relocs to
3349 DPREL relocs. */
3350 if (!info->shared)
3351 {
3352 switch (r_type)
4fc8051d
AM
3353 {
3354 case R_PARISC_DLTIND21L:
3355 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3356 break;
3357
4fc8051d
AM
3358 case R_PARISC_DLTIND14R:
3359 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3360 break;
3361
4fc8051d
AM
3362 case R_PARISC_DLTIND14F:
3363 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3364 break;
3365 }
3366 }
3367
30667bf3
AM
3368 switch (r_type)
3369 {
3370 case R_PARISC_PCREL12F:
3371 case R_PARISC_PCREL17F:
3372 case R_PARISC_PCREL22F:
067fa4a6
AM
3373 /* If this call should go via the plt, find the import stub in
3374 the stub hash. */
30667bf3
AM
3375 if (sym_sec == NULL
3376 || sym_sec->output_section == NULL
875c0872 3377 || (hh != NULL
a63e02c7
DA
3378 && hh->eh.plt.offset != (bfd_vma) -1
3379 && hh->eh.dynindx != -1
875c0872 3380 && !hh->plabel
a252afa4 3381 && (info->shared
a63e02c7
DA
3382 || !hh->eh.def_regular
3383 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3384 {
875c0872
DA
3385 hsh = hppa_get_stub_entry (input_section, sym_sec,
3386 hh, rela, htab);
3387 if (hsh != NULL)
30667bf3 3388 {
875c0872
DA
3389 value = (hsh->stub_offset
3390 + hsh->stub_sec->output_offset
3391 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3392 addend = 0;
3393 }
875c0872 3394 else if (sym_sec == NULL && hh != NULL
a63e02c7 3395 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3396 {
db20fd76
AM
3397 /* It's OK if undefined weak. Calls to undefined weak
3398 symbols behave as if the "called" function
3399 immediately returns. We can thus call to a weak
3400 function without first checking whether the function
3401 is defined. */
30667bf3 3402 value = location;
db20fd76 3403 addend = 8;
30667bf3
AM
3404 }
3405 else
f09ebc7d 3406 return bfd_reloc_undefined;
30667bf3
AM
3407 }
3408 /* Fall thru. */
3409
3410 case R_PARISC_PCREL21L:
3411 case R_PARISC_PCREL17C:
3412 case R_PARISC_PCREL17R:
3413 case R_PARISC_PCREL14R:
3414 case R_PARISC_PCREL14F:
36751eee 3415 case R_PARISC_PCREL32:
30667bf3
AM
3416 /* Make it a pc relative offset. */
3417 value -= location;
3418 addend -= 8;
3419 break;
3420
3421 case R_PARISC_DPREL21L:
3422 case R_PARISC_DPREL14R:
3423 case R_PARISC_DPREL14F:
f6fd0237
DA
3424 case R_PARISC_TLS_GD21L:
3425 case R_PARISC_TLS_LDM21L:
3426 case R_PARISC_TLS_IE21L:
a252afa4
DA
3427 /* Convert instructions that use the linkage table pointer (r19) to
3428 instructions that use the global data pointer (dp). This is the
3429 most efficient way of using PIC code in an incomplete executable,
3430 but the user must follow the standard runtime conventions for
3431 accessing data for this to work. */
f6fd0237
DA
3432 if (orig_r_type == R_PARISC_DLTIND21L
3433 || (!info->shared
3434 && (r_type == R_PARISC_TLS_GD21L
3435 || r_type == R_PARISC_TLS_LDM21L
3436 || r_type == R_PARISC_TLS_IE21L)))
a252afa4
DA
3437 {
3438 /* Convert addil instructions if the original reloc was a
3439 DLTIND21L. GCC sometimes uses a register other than r19 for
3440 the operation, so we must convert any addil instruction
3441 that uses this relocation. */
3442 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3443 insn = ADDIL_DP;
3444 else
3445 /* We must have a ldil instruction. It's too hard to find
3446 and convert the associated add instruction, so issue an
3447 error. */
3448 (*_bfd_error_handler)
d003868e
AM
3449 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3450 input_bfd,
3451 input_section,
d1fa68d3 3452 (long) offset,
a252afa4
DA
3453 howto->name,
3454 insn);
3455 }
3456 else if (orig_r_type == R_PARISC_DLTIND14F)
3457 {
3458 /* This must be a format 1 load/store. Change the base
3459 register to dp. */
3460 insn = (insn & 0xfc1ffff) | (27 << 21);
3461 }
3462
30667bf3 3463 /* For all the DP relative relocations, we need to examine the symbol's
95d0f04a
DA
3464 section. If it has no section or if it's a code section, then
3465 "data pointer relative" makes no sense. In that case we don't
3466 adjust the "value", and for 21 bit addil instructions, we change the
3467 source addend register from %dp to %r0. This situation commonly
3468 arises for undefined weak symbols and when a variable's "constness"
30667bf3
AM
3469 is declared differently from the way the variable is defined. For
3470 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3471 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3472 {
3473 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3474 == (((int) OP_ADDIL << 26) | (27 << 21)))
3475 {
3476 insn &= ~ (0x1f << 21);
30667bf3
AM
3477 }
3478 /* Now try to make things easy for the dynamic linker. */
3479
3480 break;
3481 }
74d1c347 3482 /* Fall thru. */
30667bf3
AM
3483
3484 case R_PARISC_DLTIND21L:
3485 case R_PARISC_DLTIND14R:
3486 case R_PARISC_DLTIND14F:
9b52905e 3487 case R_PARISC_TLS_GD14R:
9b52905e 3488 case R_PARISC_TLS_LDM14R:
9b52905e 3489 case R_PARISC_TLS_IE14R:
30667bf3
AM
3490 value -= elf_gp (input_section->output_section->owner);
3491 break;
3492
c46b7515
AM
3493 case R_PARISC_SEGREL32:
3494 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3495 value -= htab->text_segment_base;
c46b7515 3496 else
83c81bfe 3497 value -= htab->data_segment_base;
c46b7515
AM
3498 break;
3499
30667bf3
AM
3500 default:
3501 break;
3502 }
3503
3504 switch (r_type)
3505 {
3506 case R_PARISC_DIR32:
47d89dba 3507 case R_PARISC_DIR14F:
30667bf3
AM
3508 case R_PARISC_DIR17F:
3509 case R_PARISC_PCREL17C:
3510 case R_PARISC_PCREL14F:
36751eee 3511 case R_PARISC_PCREL32:
30667bf3
AM
3512 case R_PARISC_DPREL14F:
3513 case R_PARISC_PLABEL32:
3514 case R_PARISC_DLTIND14F:
3515 case R_PARISC_SEGBASE:
3516 case R_PARISC_SEGREL32:
9b52905e
NC
3517 case R_PARISC_TLS_DTPMOD32:
3518 case R_PARISC_TLS_DTPOFF32:
3519 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3520 r_field = e_fsel;
3521 break;
3522
1bf42538 3523 case R_PARISC_DLTIND21L:
30667bf3 3524 case R_PARISC_PCREL21L:
30667bf3 3525 case R_PARISC_PLABEL21L:
1bf42538
JL
3526 r_field = e_lsel;
3527 break;
3528
3529 case R_PARISC_DIR21L:
3530 case R_PARISC_DPREL21L:
9b52905e
NC
3531 case R_PARISC_TLS_GD21L:
3532 case R_PARISC_TLS_LDM21L:
3533 case R_PARISC_TLS_LDO21L:
3534 case R_PARISC_TLS_IE21L:
3535 case R_PARISC_TLS_LE21L:
30667bf3
AM
3536 r_field = e_lrsel;
3537 break;
3538
30667bf3 3539 case R_PARISC_PCREL17R:
30667bf3 3540 case R_PARISC_PCREL14R:
30667bf3
AM
3541 case R_PARISC_PLABEL14R:
3542 case R_PARISC_DLTIND14R:
1bf42538
JL
3543 r_field = e_rsel;
3544 break;
3545
3546 case R_PARISC_DIR17R:
3547 case R_PARISC_DIR14R:
3548 case R_PARISC_DPREL14R:
9b52905e
NC
3549 case R_PARISC_TLS_GD14R:
3550 case R_PARISC_TLS_LDM14R:
3551 case R_PARISC_TLS_LDO14R:
3552 case R_PARISC_TLS_IE14R:
3553 case R_PARISC_TLS_LE14R:
30667bf3
AM
3554 r_field = e_rrsel;
3555 break;
3556
3557 case R_PARISC_PCREL12F:
3558 case R_PARISC_PCREL17F:
3559 case R_PARISC_PCREL22F:
3560 r_field = e_fsel;
3561
3562 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3563 {
3564 max_branch_offset = (1 << (17-1)) << 2;
3565 }
3566 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3567 {
3568 max_branch_offset = (1 << (12-1)) << 2;
3569 }
3570 else
3571 {
3572 max_branch_offset = (1 << (22-1)) << 2;
3573 }
3574
3575 /* sym_sec is NULL on undefined weak syms or when shared on
3576 undefined syms. We've already checked for a stub for the
3577 shared undefined case. */
3578 if (sym_sec == NULL)
3579 break;
3580
3581 /* If the branch is out of reach, then redirect the
3582 call to the local stub for this function. */
3583 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3584 {
875c0872
DA
3585 hsh = hppa_get_stub_entry (input_section, sym_sec,
3586 hh, rela, htab);
3587 if (hsh == NULL)
f09ebc7d 3588 return bfd_reloc_undefined;
30667bf3
AM
3589
3590 /* Munge up the value and addend so that we call the stub
3591 rather than the procedure directly. */
875c0872
DA
3592 value = (hsh->stub_offset
3593 + hsh->stub_sec->output_offset
3594 + hsh->stub_sec->output_section->vma
30667bf3
AM
3595 - location);
3596 addend = -8;
3597 }
3598 break;
3599
3600 /* Something we don't know how to handle. */
3601 default:
3602 return bfd_reloc_notsupported;
3603 }
3604
3605 /* Make sure we can reach the stub. */
3606 if (max_branch_offset != 0
3607 && value + addend + max_branch_offset >= 2*max_branch_offset)
3608 {
3609 (*_bfd_error_handler)
d003868e
AM
3610 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3611 input_bfd,
3612 input_section,
d1fa68d3 3613 (long) offset,
a63e02c7 3614 hsh->bh_root.string);
ce757d15 3615 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3616 return bfd_reloc_notsupported;
3617 }
3618
3619 val = hppa_field_adjust (value, addend, r_field);
3620
3621 switch (r_type)
3622 {
3623 case R_PARISC_PCREL12F:
3624 case R_PARISC_PCREL17C:
3625 case R_PARISC_PCREL17F:
3626 case R_PARISC_PCREL17R:
3627 case R_PARISC_PCREL22F:
3628 case R_PARISC_DIR17F:
3629 case R_PARISC_DIR17R:
3630 /* This is a branch. Divide the offset by four.
3631 Note that we need to decide whether it's a branch or
3632 otherwise by inspecting the reloc. Inspecting insn won't
3633 work as insn might be from a .word directive. */
3634 val >>= 2;
3635 break;
3636
3637 default:
3638 break;
3639 }
3640
3641 insn = hppa_rebuild_insn (insn, val, r_format);
3642
3643 /* Update the instruction word. */
74d1c347 3644 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3645 return bfd_reloc_ok;
3646}
3647
30667bf3
AM
3648/* Relocate an HPPA ELF section. */
3649
b34976b6 3650static bfd_boolean
c39a58e6
AM
3651elf32_hppa_relocate_section (bfd *output_bfd,
3652 struct bfd_link_info *info,
3653 bfd *input_bfd,
3654 asection *input_section,
3655 bfd_byte *contents,
3656 Elf_Internal_Rela *relocs,
3657 Elf_Internal_Sym *local_syms,
3658 asection **local_sections)
30667bf3 3659{
30667bf3 3660 bfd_vma *local_got_offsets;
83c81bfe 3661 struct elf32_hppa_link_hash_table *htab;
30667bf3 3662 Elf_Internal_Shdr *symtab_hdr;
875c0872 3663 Elf_Internal_Rela *rela;
30667bf3 3664 Elf_Internal_Rela *relend;
30667bf3
AM
3665
3666 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3667
83c81bfe 3668 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3669 if (htab == NULL)
3670 return FALSE;
3671
74d1c347 3672 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3673
875c0872 3674 rela = relocs;
30667bf3 3675 relend = relocs + input_section->reloc_count;
875c0872 3676 for (; rela < relend; rela++)
30667bf3
AM
3677 {
3678 unsigned int r_type;
3679 reloc_howto_type *howto;
3680 unsigned int r_symndx;
875c0872 3681 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3682 Elf_Internal_Sym *sym;
3683 asection *sym_sec;
3684 bfd_vma relocation;
875c0872 3685 bfd_reloc_status_type rstatus;
30667bf3 3686 const char *sym_name;
b34976b6
AM
3687 bfd_boolean plabel;
3688 bfd_boolean warned_undef;
30667bf3 3689
875c0872 3690 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3691 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3692 {
3693 bfd_set_error (bfd_error_bad_value);
b34976b6 3694 return FALSE;
30667bf3
AM
3695 }
3696 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3697 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3698 continue;
3699
875c0872
DA
3700 r_symndx = ELF32_R_SYM (rela->r_info);
3701 hh = NULL;
30667bf3
AM
3702 sym = NULL;
3703 sym_sec = NULL;
b34976b6 3704 warned_undef = FALSE;
30667bf3
AM
3705 if (r_symndx < symtab_hdr->sh_info)
3706 {
3707 /* This is a local symbol, h defaults to NULL. */
3708 sym = local_syms + r_symndx;
3709 sym_sec = local_sections[r_symndx];
875c0872 3710 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3711 }
3712 else
3713 {
875c0872 3714 struct elf_link_hash_entry *eh;
560e09e9 3715 bfd_boolean unresolved_reloc;
b2a8e766 3716 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3717
875c0872 3718 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3719 r_symndx, symtab_hdr, sym_hashes,
875c0872 3720 eh, sym_sec, relocation,
b2a8e766 3721 unresolved_reloc, warned_undef);
560e09e9 3722
ab96bf03
AM
3723 if (!info->relocatable
3724 && relocation == 0
875c0872
DA
3725 && eh->root.type != bfd_link_hash_defined
3726 && eh->root.type != bfd_link_hash_defweak
3727 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3728 {
59c2e50f 3729 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3730 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3731 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3732 {
3733 if (! info->callbacks->undefined_symbol
9b52905e 3734 (info, eh_name (eh), input_bfd,
875c0872 3735 input_section, rela->r_offset, FALSE))
560e09e9
NC
3736 return FALSE;
3737 warned_undef = TRUE;
3738 }
30667bf3 3739 }
875c0872 3740 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3741 }
3742
ab96bf03 3743 if (sym_sec != NULL && elf_discarded_section (sym_sec))
e4067dbb
DJ
3744 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3745 rela, relend,
3746 elf_hppa_howto_table + r_type,
3747 contents);
ab96bf03
AM
3748
3749 if (info->relocatable)
3750 continue;
3751
30667bf3 3752 /* Do any required modifications to the relocation value, and
25f72752
AM
3753 determine what types of dynamic info we need to output, if
3754 any. */
74d1c347 3755 plabel = 0;
30667bf3
AM
3756 switch (r_type)
3757 {
3758 case R_PARISC_DLTIND14F:
3759 case R_PARISC_DLTIND14R:
3760 case R_PARISC_DLTIND21L:
ce757d15
AM
3761 {
3762 bfd_vma off;
b34976b6 3763 bfd_boolean do_got = 0;
ce757d15
AM
3764
3765 /* Relocation is to the entry for this symbol in the
3766 global offset table. */
875c0872 3767 if (hh != NULL)
ce757d15 3768 {
b34976b6 3769 bfd_boolean dyn;
ce757d15 3770
a63e02c7
DA
3771 off = hh->eh.got.offset;
3772 dyn = htab->etab.dynamic_sections_created;
c152c796 3773 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3774 &hh->eh))
ce757d15
AM
3775 {
3776 /* If we aren't going to call finish_dynamic_symbol,
3777 then we need to handle initialisation of the .got
3778 entry and create needed relocs here. Since the
3779 offset must always be a multiple of 4, we use the
3780 least significant bit to record whether we have
3781 initialised it already. */
3782 if ((off & 1) != 0)
3783 off &= ~1;
3784 else
3785 {
a63e02c7 3786 hh->eh.got.offset |= 1;
ce757d15
AM
3787 do_got = 1;
3788 }
3789 }
3790 }
3791 else
3792 {
3793 /* Local symbol case. */
3794 if (local_got_offsets == NULL)
3795 abort ();
3796
3797 off = local_got_offsets[r_symndx];
3798
3799 /* The offset must always be a multiple of 4. We use
3800 the least significant bit to record whether we have
3801 already generated the necessary reloc. */
3802 if ((off & 1) != 0)
3803 off &= ~1;
3804 else
3805 {
3806 local_got_offsets[r_symndx] |= 1;
3807 do_got = 1;
3808 }
3809 }
68fb2e56 3810
ce757d15
AM
3811 if (do_got)
3812 {
3813 if (info->shared)
3814 {
3815 /* Output a dynamic relocation for this GOT entry.
3816 In this case it is relative to the base of the
3817 object because the symbol index is zero. */
3818 Elf_Internal_Rela outrel;
947216bf 3819 bfd_byte *loc;
875c0872 3820 asection *sec = htab->srelgot;
ce757d15
AM
3821
3822 outrel.r_offset = (off
3823 + htab->sgot->output_offset
3824 + htab->sgot->output_section->vma);
3825 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3826 outrel.r_addend = relocation;
875c0872
DA
3827 loc = sec->contents;
3828 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3829 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3830 }
3831 else
30667bf3 3832 bfd_put_32 (output_bfd, relocation,
83c81bfe 3833 htab->sgot->contents + off);
ce757d15 3834 }
30667bf3 3835
ce757d15
AM
3836 if (off >= (bfd_vma) -2)
3837 abort ();
30667bf3 3838
ce757d15
AM
3839 /* Add the base of the GOT to the relocation value. */
3840 relocation = (off
3841 + htab->sgot->output_offset
3842 + htab->sgot->output_section->vma);
3843 }
30667bf3 3844 break;
252b5132 3845
c46b7515
AM
3846 case R_PARISC_SEGREL32:
3847 /* If this is the first SEGREL relocation, then initialize
3848 the segment base values. */
83c81bfe
AM
3849 if (htab->text_segment_base == (bfd_vma) -1)
3850 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3851 break;
3852
30667bf3
AM
3853 case R_PARISC_PLABEL14R:
3854 case R_PARISC_PLABEL21L:
3855 case R_PARISC_PLABEL32:
a63e02c7 3856 if (htab->etab.dynamic_sections_created)
252b5132 3857 {
ce757d15 3858 bfd_vma off;
b34976b6 3859 bfd_boolean do_plt = 0;
74d1c347
AM
3860 /* If we have a global symbol with a PLT slot, then
3861 redirect this relocation to it. */
875c0872 3862 if (hh != NULL)
74d1c347 3863 {
a63e02c7 3864 off = hh->eh.plt.offset;
c152c796 3865 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3866 &hh->eh))
8dea1268
AM
3867 {
3868 /* In a non-shared link, adjust_dynamic_symbols
3869 isn't called for symbols forced local. We
dc810e39 3870 need to write out the plt entry here. */
8dea1268
AM
3871 if ((off & 1) != 0)
3872 off &= ~1;
3873 else
3874 {
a63e02c7 3875 hh->eh.plt.offset |= 1;
ce757d15 3876 do_plt = 1;
8dea1268
AM
3877 }
3878 }
74d1c347
AM
3879 }
3880 else
3881 {
68fb2e56
AM
3882 bfd_vma *local_plt_offsets;
3883
3884 if (local_got_offsets == NULL)
3885 abort ();
74d1c347 3886
68fb2e56
AM
3887 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3888 off = local_plt_offsets[r_symndx];
74d1c347
AM
3889
3890 /* As for the local .got entry case, we use the last
3891 bit to record whether we've already initialised
3892 this local .plt entry. */
3893 if ((off & 1) != 0)
3894 off &= ~1;
ce757d15
AM
3895 else
3896 {
3897 local_plt_offsets[r_symndx] |= 1;
3898 do_plt = 1;
3899 }
3900 }
3901
3902 if (do_plt)
3903 {
3904 if (info->shared)
3905 {
3906 /* Output a dynamic IPLT relocation for this
3907 PLT entry. */
3908 Elf_Internal_Rela outrel;
947216bf
AM
3909 bfd_byte *loc;
3910 asection *s = htab->srelplt;
ce757d15
AM
3911
3912 outrel.r_offset = (off
3913 + htab->splt->output_offset
3914 + htab->splt->output_section->vma);
3915 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3916 outrel.r_addend = relocation;
947216bf
AM
3917 loc = s->contents;
3918 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3919 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3920 }
74d1c347
AM
3921 else
3922 {
3923 bfd_put_32 (output_bfd,
3924 relocation,
83c81bfe 3925 htab->splt->contents + off);
74d1c347 3926 bfd_put_32 (output_bfd,
83c81bfe
AM
3927 elf_gp (htab->splt->output_section->owner),
3928 htab->splt->contents + off + 4);
74d1c347
AM
3929 }
3930 }
3931
68fb2e56 3932 if (off >= (bfd_vma) -2)
49e9d0d3 3933 abort ();
74d1c347
AM
3934
3935 /* PLABELs contain function pointers. Relocation is to
3936 the entry for the function in the .plt. The magic +2
3937 offset signals to $$dyncall that the function pointer
3938 is in the .plt and thus has a gp pointer too.
3939 Exception: Undefined PLABELs should have a value of
3940 zero. */
875c0872 3941 if (hh == NULL
a63e02c7
DA
3942 || (hh->eh.root.type != bfd_link_hash_undefweak
3943 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3944 {
3945 relocation = (off
83c81bfe
AM
3946 + htab->splt->output_offset
3947 + htab->splt->output_section->vma
74d1c347
AM
3948 + 2);
3949 }
3950 plabel = 1;
30667bf3
AM
3951 }
3952 /* Fall through and possibly emit a dynamic relocation. */
3953
3954 case R_PARISC_DIR17F:
3955 case R_PARISC_DIR17R:
47d89dba 3956 case R_PARISC_DIR14F:
30667bf3
AM
3957 case R_PARISC_DIR14R:
3958 case R_PARISC_DIR21L:
3959 case R_PARISC_DPREL14F:
3960 case R_PARISC_DPREL14R:
3961 case R_PARISC_DPREL21L:
3962 case R_PARISC_DIR32:
b1e24c02 3963 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3964 break;
3965
30667bf3 3966 /* The reloc types handled here and this conditional
56882138 3967 expression must match the code in ..check_relocs and
ec338859 3968 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3969 as in ..check_relocs, with some extra conditions (dynindx
3970 test in this case) to cater for relocs removed by
ec338859 3971 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3972 here does indeed match the one in ..check_relocs, the
3973 difference being that here we test DEF_DYNAMIC as well as
3974 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3975 which is why we can't use just that test here.
3976 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3977 there all files have not been loaded. */
446f2863 3978 if ((info->shared
875c0872 3979 && (hh == NULL
a63e02c7
DA
3980 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3981 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3982 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3983 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3984 || (!info->shared
875c0872 3985 && hh != NULL
a63e02c7
DA
3986 && hh->eh.dynindx != -1
3987 && !hh->eh.non_got_ref
4fc8051d 3988 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3989 && hh->eh.def_dynamic
3990 && !hh->eh.def_regular)
3991 || hh->eh.root.type == bfd_link_hash_undefweak
3992 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3993 {
3994 Elf_Internal_Rela outrel;
b34976b6 3995 bfd_boolean skip;
98ceb8ce 3996 asection *sreloc;
947216bf 3997 bfd_byte *loc;
252b5132 3998
30667bf3
AM
3999 /* When generating a shared object, these relocations
4000 are copied into the output file to be resolved at run
4001 time. */
252b5132 4002
875c0872 4003 outrel.r_addend = rela->r_addend;
c629eae0
JJ
4004 outrel.r_offset =
4005 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 4006 rela->r_offset);
0bb2d96a
JJ
4007 skip = (outrel.r_offset == (bfd_vma) -1
4008 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
4009 outrel.r_offset += (input_section->output_offset
4010 + input_section->output_section->vma);
875c0872 4011
30667bf3 4012 if (skip)
252b5132 4013 {
30667bf3 4014 memset (&outrel, 0, sizeof (outrel));
252b5132 4015 }
875c0872 4016 else if (hh != NULL
a63e02c7 4017 && hh->eh.dynindx != -1
74d1c347 4018 && (plabel
446f2863
AM
4019 || !IS_ABSOLUTE_RELOC (r_type)
4020 || !info->shared
74d1c347 4021 || !info->symbolic
a63e02c7 4022 || !hh->eh.def_regular))
252b5132 4023 {
a63e02c7 4024 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4025 }
4026 else /* It's a local symbol, or one marked to become local. */
4027 {
4028 int indx = 0;
edd21aca 4029
30667bf3
AM
4030 /* Add the absolute offset of the symbol. */
4031 outrel.r_addend += relocation;
edd21aca 4032
74d1c347
AM
4033 /* Global plabels need to be processed by the
4034 dynamic linker so that functions have at most one
4035 fptr. For this reason, we need to differentiate
4036 between global and local plabels, which we do by
4037 providing the function symbol for a global plabel
4038 reloc, and no symbol for local plabels. */
4039 if (! plabel
4040 && sym_sec != NULL
30667bf3
AM
4041 && sym_sec->output_section != NULL
4042 && ! bfd_is_abs_section (sym_sec))
252b5132 4043 {
74541ad4
AM
4044 asection *osec;
4045
4046 osec = sym_sec->output_section;
4047 indx = elf_section_data (osec)->dynindx;
4048 if (indx == 0)
4049 {
4050 osec = htab->etab.text_index_section;
4051 indx = elf_section_data (osec)->dynindx;
4052 }
4053 BFD_ASSERT (indx != 0);
4b71bec0 4054
30667bf3
AM
4055 /* We are turning this relocation into one
4056 against a section symbol, so subtract out the
4057 output section's address but not the offset
4058 of the input section in the output section. */
74541ad4 4059 outrel.r_addend -= osec->vma;
252b5132 4060 }
252b5132 4061
30667bf3
AM
4062 outrel.r_info = ELF32_R_INFO (indx, r_type);
4063 }
98ceb8ce
AM
4064 sreloc = elf_section_data (input_section)->sreloc;
4065 if (sreloc == NULL)
4066 abort ();
4067
947216bf
AM
4068 loc = sreloc->contents;
4069 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4070 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4071 }
4072 break;
9b52905e
NC
4073
4074 case R_PARISC_TLS_LDM21L:
4075 case R_PARISC_TLS_LDM14R:
4076 {
4077 bfd_vma off;
4078
4079 off = htab->tls_ldm_got.offset;
4080 if (off & 1)
4081 off &= ~1;
4082 else
4083 {
4084 Elf_Internal_Rela outrel;
4085 bfd_byte *loc;
4086
4087 outrel.r_offset = (off
4088 + htab->sgot->output_section->vma
4089 + htab->sgot->output_offset);
4090 outrel.r_addend = 0;
4091 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4092 loc = htab->srelgot->contents;
4093 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4094
4095 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4096 htab->tls_ldm_got.offset |= 1;
4097 }
4098
4099 /* Add the base of the GOT to the relocation value. */
4100 relocation = (off
4101 + htab->sgot->output_offset
4102 + htab->sgot->output_section->vma);
4103
4104 break;
4105 }
4106
4107 case R_PARISC_TLS_LDO21L:
4108 case R_PARISC_TLS_LDO14R:
4109 relocation -= dtpoff_base (info);
4110 break;
4111
4112 case R_PARISC_TLS_GD21L:
4113 case R_PARISC_TLS_GD14R:
4114 case R_PARISC_TLS_IE21L:
4115 case R_PARISC_TLS_IE14R:
4116 {
4117 bfd_vma off;
4118 int indx;
4119 char tls_type;
4120
4121 indx = 0;
4122 if (hh != NULL)
4123 {
4124 bfd_boolean dyn;
4125 dyn = htab->etab.dynamic_sections_created;
4126
4127 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4128 && (!info->shared
4129 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4130 {
4131 indx = hh->eh.dynindx;
4132 }
4133 off = hh->eh.got.offset;
4134 tls_type = hh->tls_type;
4135 }
4136 else
4137 {
4138 off = local_got_offsets[r_symndx];
4139 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4140 }
4141
4142 if (tls_type == GOT_UNKNOWN)
4143 abort ();
4144
4145 if ((off & 1) != 0)
4146 off &= ~1;
4147 else
4148 {
4149 bfd_boolean need_relocs = FALSE;
4150 Elf_Internal_Rela outrel;
4151 bfd_byte *loc = NULL;
4152 int cur_off = off;
4153
4154 /* The GOT entries have not been initialized yet. Do it
4155 now, and emit any relocations. If both an IE GOT and a
4156 GD GOT are necessary, we emit the GD first. */
4157
4158 if ((info->shared || indx != 0)
4159 && (hh == NULL
4160 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4161 || hh->eh.root.type != bfd_link_hash_undefweak))
4162 {
4163 need_relocs = TRUE;
4164 loc = htab->srelgot->contents;
4165 /* FIXME (CAO): Should this be reloc_count++ ? */
4166 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4167 }
4168
4169 if (tls_type & GOT_TLS_GD)
4170 {
4171 if (need_relocs)
4172 {
4173 outrel.r_offset = (cur_off
4174 + htab->sgot->output_section->vma
4175 + htab->sgot->output_offset);
4176 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4177 outrel.r_addend = 0;
4178 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4179 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4180 htab->srelgot->reloc_count++;
4181 loc += sizeof (Elf32_External_Rela);
4182
4183 if (indx == 0)
4184 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4185 htab->sgot->contents + cur_off + 4);
4186 else
4187 {
4188 bfd_put_32 (output_bfd, 0,
4189 htab->sgot->contents + cur_off + 4);
4190 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4191 outrel.r_offset += 4;
4192 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4193 htab->srelgot->reloc_count++;
4194 loc += sizeof (Elf32_External_Rela);
4195 }
4196 }
4197 else
4198 {
4199 /* If we are not emitting relocations for a
4200 general dynamic reference, then we must be in a
4201 static link or an executable link with the
4202 symbol binding locally. Mark it as belonging
4203 to module 1, the executable. */
4204 bfd_put_32 (output_bfd, 1,
4205 htab->sgot->contents + cur_off);
4206 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4207 htab->sgot->contents + cur_off + 4);
4208 }
4209
4210
4211 cur_off += 8;
4212 }
4213
4214 if (tls_type & GOT_TLS_IE)
4215 {
4216 if (need_relocs)
4217 {
4218 outrel.r_offset = (cur_off
4219 + htab->sgot->output_section->vma
4220 + htab->sgot->output_offset);
4221 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4222
4223 if (indx == 0)
4224 outrel.r_addend = relocation - dtpoff_base (info);
4225 else
4226 outrel.r_addend = 0;
4227
4228 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4229 htab->srelgot->reloc_count++;
4230 loc += sizeof (Elf32_External_Rela);
4231 }
4232 else
4233 bfd_put_32 (output_bfd, tpoff (info, relocation),
4234 htab->sgot->contents + cur_off);
4235
4236 cur_off += 4;
4237 }
4238
4239 if (hh != NULL)
4240 hh->eh.got.offset |= 1;
4241 else
4242 local_got_offsets[r_symndx] |= 1;
4243 }
4244
4245 if ((tls_type & GOT_TLS_GD)
4246 && r_type != R_PARISC_TLS_GD21L
4247 && r_type != R_PARISC_TLS_GD14R)
4248 off += 2 * GOT_ENTRY_SIZE;
4249
4250 /* Add the base of the GOT to the relocation value. */
4251 relocation = (off
4252 + htab->sgot->output_offset
4253 + htab->sgot->output_section->vma);
4254
4255 break;
4256 }
4257
4258 case R_PARISC_TLS_LE21L:
4259 case R_PARISC_TLS_LE14R:
4260 {
4261 relocation = tpoff (info, relocation);
4262 break;
4263 }
4264 break;
edd21aca 4265
30667bf3
AM
4266 default:
4267 break;
4268 }
252b5132 4269
875c0872
DA
4270 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4271 htab, sym_sec, hh, info);
252b5132 4272
875c0872 4273 if (rstatus == bfd_reloc_ok)
30667bf3 4274 continue;
252b5132 4275
875c0872 4276 if (hh != NULL)
9b52905e 4277 sym_name = hh_name (hh);
30667bf3
AM
4278 else
4279 {
4280 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4281 symtab_hdr->sh_link,
4282 sym->st_name);
4283 if (sym_name == NULL)
b34976b6 4284 return FALSE;
30667bf3
AM
4285 if (*sym_name == '\0')
4286 sym_name = bfd_section_name (input_bfd, sym_sec);
4287 }
edd21aca 4288
30667bf3 4289 howto = elf_hppa_howto_table + r_type;
252b5132 4290
875c0872 4291 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4292 {
875c0872 4293 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4294 {
4295 (*_bfd_error_handler)
d003868e
AM
4296 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4297 input_bfd,
4298 input_section,
875c0872 4299 (long) rela->r_offset,
f09ebc7d
AM
4300 howto->name,
4301 sym_name);
4302 bfd_set_error (bfd_error_bad_value);
b34976b6 4303 return FALSE;
f09ebc7d 4304 }
30667bf3
AM
4305 }
4306 else
4307 {
4308 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4309 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4310 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4311 return FALSE;
30667bf3
AM
4312 }
4313 }
edd21aca 4314
b34976b6 4315 return TRUE;
30667bf3 4316}
252b5132 4317
30667bf3
AM
4318/* Finish up dynamic symbol handling. We set the contents of various
4319 dynamic sections here. */
252b5132 4320
b34976b6 4321static bfd_boolean
c39a58e6
AM
4322elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4323 struct bfd_link_info *info,
875c0872 4324 struct elf_link_hash_entry *eh,
c39a58e6 4325 Elf_Internal_Sym *sym)
30667bf3 4326{
83c81bfe 4327 struct elf32_hppa_link_hash_table *htab;
875c0872 4328 Elf_Internal_Rela rela;
a252afa4 4329 bfd_byte *loc;
edd21aca 4330
83c81bfe 4331 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4332 if (htab == NULL)
4333 return FALSE;
30667bf3 4334
875c0872 4335 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4336 {
4337 bfd_vma value;
30667bf3 4338
875c0872 4339 if (eh->plt.offset & 1)
8dea1268
AM
4340 abort ();
4341
30667bf3
AM
4342 /* This symbol has an entry in the procedure linkage table. Set
4343 it up.
4344
4345 The format of a plt entry is
74d1c347
AM
4346 <funcaddr>
4347 <__gp>
47d89dba 4348 */
30667bf3 4349 value = 0;
875c0872
DA
4350 if (eh->root.type == bfd_link_hash_defined
4351 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4352 {
875c0872
DA
4353 value = eh->root.u.def.value;
4354 if (eh->root.u.def.section->output_section != NULL)
4355 value += (eh->root.u.def.section->output_offset
4356 + eh->root.u.def.section->output_section->vma);
252b5132 4357 }
edd21aca 4358
a252afa4 4359 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4360 rela.r_offset = (eh->plt.offset
a252afa4
DA
4361 + htab->splt->output_offset
4362 + htab->splt->output_section->vma);
875c0872 4363 if (eh->dynindx != -1)
30667bf3 4364 {
875c0872
DA
4365 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4366 rela.r_addend = 0;
30667bf3 4367 }
ce757d15 4368 else
47d89dba 4369 {
a252afa4
DA
4370 /* This symbol has been marked to become local, and is
4371 used by a plabel so must be kept in the .plt. */
875c0872
DA
4372 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4373 rela.r_addend = value;
47d89dba
AM
4374 }
4375
a252afa4
DA
4376 loc = htab->srelplt->contents;
4377 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4378 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4379
875c0872 4380 if (!eh->def_regular)
30667bf3
AM
4381 {
4382 /* Mark the symbol as undefined, rather than as defined in
4383 the .plt section. Leave the value alone. */
4384 sym->st_shndx = SHN_UNDEF;
4385 }
4386 }
edd21aca 4387
9b52905e
NC
4388 if (eh->got.offset != (bfd_vma) -1
4389 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4390 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4391 {
30667bf3
AM
4392 /* This symbol has an entry in the global offset table. Set it
4393 up. */
4394
875c0872 4395 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4396 + htab->sgot->output_offset
4397 + htab->sgot->output_section->vma);
30667bf3 4398
4dc86686
AM
4399 /* If this is a -Bsymbolic link and the symbol is defined
4400 locally or was forced to be local because of a version file,
4401 we just want to emit a RELATIVE reloc. The entry in the
4402 global offset table will already have been initialized in the
4403 relocate_section function. */
4404 if (info->shared
875c0872
DA
4405 && (info->symbolic || eh->dynindx == -1)
4406 && eh->def_regular)
30667bf3 4407 {
875c0872
DA
4408 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4409 rela.r_addend = (eh->root.u.def.value
4410 + eh->root.u.def.section->output_offset
4411 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4412 }
4413 else
4414 {
875c0872 4415 if ((eh->got.offset & 1) != 0)
49e9d0d3 4416 abort ();
875c0872
DA
4417
4418 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4419 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4420 rela.r_addend = 0;
30667bf3 4421 }
edd21aca 4422
947216bf
AM
4423 loc = htab->srelgot->contents;
4424 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4425 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4426 }
edd21aca 4427
875c0872 4428 if (eh->needs_copy)
30667bf3 4429 {
875c0872 4430 asection *sec;
30667bf3
AM
4431
4432 /* This symbol needs a copy reloc. Set it up. */
4433
875c0872
DA
4434 if (! (eh->dynindx != -1
4435 && (eh->root.type == bfd_link_hash_defined
4436 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4437 abort ();
30667bf3 4438
875c0872 4439 sec = htab->srelbss;
30667bf3 4440
875c0872
DA
4441 rela.r_offset = (eh->root.u.def.value
4442 + eh->root.u.def.section->output_offset
4443 + eh->root.u.def.section->output_section->vma);
4444 rela.r_addend = 0;
4445 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4446 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4447 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4448 }
4449
4450 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9b52905e
NC
4451 if (eh_name (eh)[0] == '_'
4452 && (strcmp (eh_name (eh), "_DYNAMIC") == 0
22edb2f1 4453 || eh == htab->etab.hgot))
30667bf3
AM
4454 {
4455 sym->st_shndx = SHN_ABS;
4456 }
4457
b34976b6 4458 return TRUE;
30667bf3
AM
4459}
4460
98ceb8ce
AM
4461/* Used to decide how to sort relocs in an optimal manner for the
4462 dynamic linker, before writing them out. */
4463
4464static enum elf_reloc_type_class
c39a58e6 4465elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
98ceb8ce 4466{
9b52905e 4467 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4468 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4469 check below. */
4470 switch ((int) ELF32_R_TYPE (rela->r_info))
4471 {
4472 case R_PARISC_TLS_DTPMOD32:
4473 case R_PARISC_TLS_DTPOFF32:
4474 case R_PARISC_TLS_TPREL32:
4475 return reloc_class_normal;
4476 }
4477
cf35638d 4478 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4479 return reloc_class_relative;
4480
4481 switch ((int) ELF32_R_TYPE (rela->r_info))
4482 {
4483 case R_PARISC_IPLT:
4484 return reloc_class_plt;
4485 case R_PARISC_COPY:
4486 return reloc_class_copy;
4487 default:
4488 return reloc_class_normal;
4489 }
4490}
4491
30667bf3
AM
4492/* Finish up the dynamic sections. */
4493
b34976b6 4494static bfd_boolean
c39a58e6
AM
4495elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4496 struct bfd_link_info *info)
30667bf3
AM
4497{
4498 bfd *dynobj;
83c81bfe 4499 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
4500 asection *sdyn;
4501
83c81bfe 4502 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4503 if (htab == NULL)
4504 return FALSE;
4505
a63e02c7 4506 dynobj = htab->etab.dynobj;
30667bf3
AM
4507
4508 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4509
a63e02c7 4510 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4511 {
4512 Elf32_External_Dyn *dyncon, *dynconend;
4513
49e9d0d3
AM
4514 if (sdyn == NULL)
4515 abort ();
30667bf3
AM
4516
4517 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4518 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4519 for (; dyncon < dynconend; dyncon++)
edd21aca 4520 {
30667bf3
AM
4521 Elf_Internal_Dyn dyn;
4522 asection *s;
4523
4524 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4525
4526 switch (dyn.d_tag)
4527 {
4528 default:
3ac8354b 4529 continue;
30667bf3
AM
4530
4531 case DT_PLTGOT:
4532 /* Use PLTGOT to set the GOT register. */
4533 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4534 break;
4535
4536 case DT_JMPREL:
83c81bfe 4537 s = htab->srelplt;
30667bf3 4538 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4539 break;
4540
4541 case DT_PLTRELSZ:
83c81bfe 4542 s = htab->srelplt;
eea6121a 4543 dyn.d_un.d_val = s->size;
30667bf3 4544 break;
4e12ff7f
AM
4545
4546 case DT_RELASZ:
4547 /* Don't count procedure linkage table relocs in the
4548 overall reloc count. */
6348e046
AM
4549 s = htab->srelplt;
4550 if (s == NULL)
4551 continue;
eea6121a 4552 dyn.d_un.d_val -= s->size;
6348e046
AM
4553 break;
4554
4555 case DT_RELA:
4556 /* We may not be using the standard ELF linker script.
4557 If .rela.plt is the first .rela section, we adjust
4558 DT_RELA to not include it. */
4559 s = htab->srelplt;
4560 if (s == NULL)
4561 continue;
4562 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4563 continue;
eea6121a 4564 dyn.d_un.d_ptr += s->size;
4e12ff7f 4565 break;
30667bf3 4566 }
3ac8354b
AM
4567
4568 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4569 }
252b5132 4570 }
edd21aca 4571
eea6121a 4572 if (htab->sgot != NULL && htab->sgot->size != 0)
30667bf3 4573 {
74d1c347
AM
4574 /* Fill in the first entry in the global offset table.
4575 We use it to point to our dynamic section, if we have one. */
30667bf3 4576 bfd_put_32 (output_bfd,
c39a58e6 4577 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
83c81bfe 4578 htab->sgot->contents);
30667bf3 4579
74d1c347 4580 /* The second entry is reserved for use by the dynamic linker. */
83c81bfe 4581 memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4582
30667bf3 4583 /* Set .got entry size. */
83c81bfe 4584 elf_section_data (htab->sgot->output_section)
74d1c347 4585 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4586 }
4587
eea6121a 4588 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4589 {
4590 /* Set plt entry size. */
83c81bfe 4591 elf_section_data (htab->splt->output_section)
47d89dba
AM
4592 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4593
83c81bfe 4594 if (htab->need_plt_stub)
47d89dba
AM
4595 {
4596 /* Set up the .plt stub. */
83c81bfe 4597 memcpy (htab->splt->contents
eea6121a 4598 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4599 plt_stub, sizeof (plt_stub));
4600
83c81bfe
AM
4601 if ((htab->splt->output_offset
4602 + htab->splt->output_section->vma
eea6121a 4603 + htab->splt->size)
83c81bfe
AM
4604 != (htab->sgot->output_offset
4605 + htab->sgot->output_section->vma))
47d89dba
AM
4606 {
4607 (*_bfd_error_handler)
4608 (_(".got section not immediately after .plt section"));
b34976b6 4609 return FALSE;
47d89dba
AM
4610 }
4611 }
4612 }
30667bf3 4613
b34976b6 4614 return TRUE;
30667bf3 4615}
252b5132 4616
30667bf3
AM
4617/* Called when writing out an object file to decide the type of a
4618 symbol. */
4619static int
c39a58e6 4620elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4621{
4622 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4623 return STT_PARISC_MILLI;
4624 else
4625 return type;
252b5132
RH
4626}
4627
4628/* Misc BFD support code. */
30667bf3
AM
4629#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4630#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4631#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4632#define elf_info_to_howto elf_hppa_info_to_howto
4633#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4634
252b5132 4635/* Stuff for the BFD linker. */
c46b7515 4636#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4637#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4638#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4639#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4640#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4641#define elf_backend_check_relocs elf32_hppa_check_relocs
4642#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4643#define elf_backend_fake_sections elf_hppa_fake_sections
4644#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4645#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4646#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4647#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4648#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4649#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4650#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4651#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4652#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4653#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4654#define elf_backend_object_p elf32_hppa_object_p
4655#define elf_backend_final_write_processing elf_hppa_final_write_processing
d1036acb 4656#define elf_backend_post_process_headers _bfd_elf_set_osabi
30667bf3 4657#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4658#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4659#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4660
4661#define elf_backend_can_gc_sections 1
51b64d56 4662#define elf_backend_can_refcount 1
30667bf3
AM
4663#define elf_backend_plt_alignment 2
4664#define elf_backend_want_got_plt 0
4665#define elf_backend_plt_readonly 0
4666#define elf_backend_want_plt_sym 0
74d1c347 4667#define elf_backend_got_header_size 8
f0fe0e16 4668#define elf_backend_rela_normal 1
252b5132
RH
4669
4670#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4671#define TARGET_BIG_NAME "elf32-hppa"
4672#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4673#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4674#define ELF_MACHINE_CODE EM_PARISC
4675#define ELF_MAXPAGESIZE 0x1000
d1036acb 4676#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4677#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4678
4679#include "elf32-target.h"
d952f17a
AM
4680
4681#undef TARGET_BIG_SYM
914dfb0f 4682#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
d952f17a 4683#undef TARGET_BIG_NAME
914dfb0f 4684#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb
L
4685#undef ELF_OSABI
4686#define ELF_OSABI ELFOSABI_LINUX
914dfb0f
DA
4687#undef elf32_bed
4688#define elf32_bed elf32_hppa_linux_bed
d952f17a 4689
d952f17a 4690#include "elf32-target.h"
225247f0
JT
4691
4692#undef TARGET_BIG_SYM
914dfb0f 4693#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
225247f0 4694#undef TARGET_BIG_NAME
914dfb0f 4695#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4696#undef ELF_OSABI
4697#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4698#undef elf32_bed
4699#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4700
4701#include "elf32-target.h"
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