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,
ab96bf03 3 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
252b5132 4
30667bf3 5 Original code by
252b5132
RH
6 Center for Software Science
7 Department of Computer Science
8 University of Utah
30667bf3 9 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9b52905e
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10 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
11 TLS support written by Randolph Chung <tausq@debian.org>
12
ae9a127f 13 This file is part of BFD, the Binary File Descriptor library.
252b5132 14
ae9a127f
NC
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 2 of the License, or
18 (at your option) any later version.
252b5132 19
ae9a127f
NC
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
252b5132 24
ae9a127f
NC
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
3e110533 27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132 28
252b5132 29#include "sysdep.h"
3db64b00 30#include "bfd.h"
252b5132
RH
31#include "libbfd.h"
32#include "elf-bfd.h"
9e103c9c
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33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
RH
52
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
56
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
30667bf3
AM
59 necessary to build the linker stubs during a link.
60
61 There are a number of different stubs generated by the linker.
62
63 Long branch stub:
64 : ldil LR'X,%r1
65 : be,n RR'X(%sr4,%r1)
66
67 PIC long branch stub:
68 : b,l .+8,%r1
3ee1d854
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69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
30667bf3
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71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
3ee1d854
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74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 76 : bv %r0(%r21)
3ee1d854 77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
3ee1d854
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81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
3ee1d854
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88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
3ee1d854
AM
98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
875c0872
DA
118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
125
126 elf32_hppa_link_hash_table "htab"
127 elf32_hppa_link_hash_entry "hh"
128
129 bfd_hash_table "btab"
130 bfd_hash_entry "bh"
131
132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
134
135 elf32_hppa_dyn_reloc_entry "hdh"
136
137 Always remember to use GNU Coding Style. */
138
30667bf3
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139#define PLT_ENTRY_SIZE 8
140#define GOT_ENTRY_SIZE 4
141#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
142
47d89dba
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143static const bfd_byte plt_stub[] =
144{
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148#define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153};
154
30667bf3
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155/* Section name for stubs is the associated section name plus this
156 string. */
157#define STUB_SUFFIX ".stub"
158
98ceb8ce
AM
159/* We don't need to copy certain PC- or GP-relative dynamic relocs
160 into a shared object's dynamic section. All the relocs of the
161 limited class we are interested in, are absolute. */
162#ifndef RELATIVE_DYNRELOCS
163#define RELATIVE_DYNRELOCS 0
446f2863 164#define IS_ABSOLUTE_RELOC(r_type) 1
30667bf3
AM
165#endif
166
4fc8051d
AM
167/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 copying dynamic variables from a shared lib into an app's dynbss
169 section, and instead use a dynamic relocation to point into the
170 shared lib. */
171#define ELIMINATE_COPY_RELOCS 1
172
9b52905e
NC
173enum elf32_hppa_stub_type
174{
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175 hppa_stub_long_branch,
176 hppa_stub_long_branch_shared,
177 hppa_stub_import,
178 hppa_stub_import_shared,
179 hppa_stub_export,
180 hppa_stub_none
181};
182
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NC
183struct elf32_hppa_stub_hash_entry
184{
edd21aca 185 /* Base hash table entry structure. */
a63e02c7 186 struct bfd_hash_entry bh_root;
252b5132 187
edd21aca
AM
188 /* The stub section. */
189 asection *stub_sec;
190
191 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 192 bfd_vma stub_offset;
252b5132
RH
193
194 /* Given the symbol's value and its section we can determine its final
195 value when building the stubs (so the stub knows where to jump. */
30667bf3 196 bfd_vma target_value;
252b5132 197 asection *target_section;
30667bf3
AM
198
199 enum elf32_hppa_stub_type stub_type;
200
201 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 202 struct elf32_hppa_link_hash_entry *hh;
30667bf3 203
25f72752
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204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
206 asection *id_sec;
252b5132
RH
207};
208
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209struct elf32_hppa_link_hash_entry
210{
a63e02c7 211 struct elf_link_hash_entry eh;
30667bf3
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212
213 /* A pointer to the most recently used stub hash entry against this
214 symbol. */
a63e02c7 215 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 216
30667bf3
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217 /* Used to count relocations for delayed sizing of relocation
218 sections. */
9b52905e
NC
219 struct elf32_hppa_dyn_reloc_entry
220 {
30667bf3 221 /* Next relocation in the chain. */
a63e02c7 222 struct elf32_hppa_dyn_reloc_entry *hdh_next;
30667bf3 223
98ceb8ce
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224 /* The input section of the reloc. */
225 asection *sec;
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226
227 /* Number of relocs copied in this section. */
228 bfd_size_type count;
98ceb8ce
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229
230#if RELATIVE_DYNRELOCS
231 /* Number of relative relocs copied for the input section. */
232 bfd_size_type relative_count;
233#endif
234 } *dyn_relocs;
30667bf3 235
9b52905e
NC
236 enum
237 {
238 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
239 } tls_type;
240
74d1c347
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241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel:1;
30667bf3
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243};
244
9b52905e
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245struct elf32_hppa_link_hash_table
246{
252b5132 247 /* The main hash table. */
a63e02c7 248 struct elf_link_hash_table etab;
252b5132
RH
249
250 /* The stub hash table. */
a63e02c7 251 struct bfd_hash_table bstab;
252b5132 252
30667bf3
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253 /* Linker stub bfd. */
254 bfd *stub_bfd;
255
30667bf3 256 /* Linker call-backs. */
c39a58e6
AM
257 asection * (*add_stub_section) (const char *, asection *);
258 void (*layout_sections_again) (void);
30667bf3 259
25f72752
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260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
9b52905e
NC
262 struct map_stub
263 {
25f72752
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264 /* This is the section to which stubs in the group will be
265 attached. */
266 asection *link_sec;
267 /* The stub section. */
268 asection *stub_sec;
25f72752 269 } *stub_group;
30667bf3 270
b4655ea9
AM
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
273 int top_index;
274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
30667bf3
AM
277 /* Short-cuts to get to dynamic linker sections. */
278 asection *sgot;
279 asection *srelgot;
280 asection *splt;
281 asection *srelplt;
282 asection *sdynbss;
283 asection *srelbss;
47d89dba 284
c46b7515
AM
285 /* Used during a final link to store the base of the text and data
286 segments so that we can perform SEGREL relocations. */
287 bfd_vma text_segment_base;
288 bfd_vma data_segment_base;
289
47d89dba
AM
290 /* Whether we support multiple sub-spaces for shared libs. */
291 unsigned int multi_subspace:1;
292
067fa4a6 293 /* Flags set when various size branches are detected. Used to
47d89dba
AM
294 select suitable defaults for the stub group size. */
295 unsigned int has_12bit_branch:1;
296 unsigned int has_17bit_branch:1;
067fa4a6 297 unsigned int has_22bit_branch:1;
47d89dba
AM
298
299 /* Set if we need a .plt stub to support lazy dynamic linking. */
300 unsigned int need_plt_stub:1;
ec338859
AM
301
302 /* Small local sym to section mapping cache. */
303 struct sym_sec_cache sym_sec;
9b52905e
NC
304
305 /* Data for LDM relocations. */
306 union
307 {
308 bfd_signed_vma refcount;
309 bfd_vma offset;
310 } tls_ldm_got;
252b5132
RH
311};
312
30667bf3
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313/* Various hash macros and functions. */
314#define hppa_link_hash_table(p) \
edd21aca 315 ((struct elf32_hppa_link_hash_table *) ((p)->hash))
252b5132 316
875c0872
DA
317#define hppa_elf_hash_entry(ent) \
318 ((struct elf32_hppa_link_hash_entry *)(ent))
319
320#define hppa_stub_hash_entry(ent) \
321 ((struct elf32_hppa_stub_hash_entry *)(ent))
322
30667bf3
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323#define hppa_stub_hash_lookup(table, string, create, copy) \
324 ((struct elf32_hppa_stub_hash_entry *) \
325 bfd_hash_lookup ((table), (string), (create), (copy)))
326
9b52905e
NC
327#define hppa_elf_local_got_tls_type(abfd) \
328 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
329
330#define hh_name(hh) \
331 (hh ? hh->eh.root.root.string : "<undef>")
332
333#define eh_name(eh) \
334 (eh ? eh->root.root.string : "<undef>")
335
252b5132
RH
336/* Assorted hash table functions. */
337
338/* Initialize an entry in the stub hash table. */
339
340static struct bfd_hash_entry *
c39a58e6
AM
341stub_hash_newfunc (struct bfd_hash_entry *entry,
342 struct bfd_hash_table *table,
343 const char *string)
252b5132 344{
252b5132
RH
345 /* Allocate the structure if it has not already been allocated by a
346 subclass. */
ebe50bae 347 if (entry == NULL)
30667bf3 348 {
ebe50bae
AM
349 entry = bfd_hash_allocate (table,
350 sizeof (struct elf32_hppa_stub_hash_entry));
351 if (entry == NULL)
352 return entry;
30667bf3 353 }
252b5132
RH
354
355 /* Call the allocation method of the superclass. */
ebe50bae
AM
356 entry = bfd_hash_newfunc (entry, table, string);
357 if (entry != NULL)
252b5132 358 {
875c0872 359 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 360
252b5132 361 /* Initialize the local fields. */
875c0872
DA
362 hsh = hppa_stub_hash_entry (entry);
363 hsh->stub_sec = NULL;
364 hsh->stub_offset = 0;
365 hsh->target_value = 0;
366 hsh->target_section = NULL;
367 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 368 hsh->hh = NULL;
875c0872 369 hsh->id_sec = NULL;
30667bf3
AM
370 }
371
ebe50bae 372 return entry;
30667bf3
AM
373}
374
30667bf3
AM
375/* Initialize an entry in the link hash table. */
376
377static struct bfd_hash_entry *
c39a58e6
AM
378hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
379 struct bfd_hash_table *table,
380 const char *string)
30667bf3 381{
30667bf3
AM
382 /* Allocate the structure if it has not already been allocated by a
383 subclass. */
ebe50bae 384 if (entry == NULL)
30667bf3 385 {
ebe50bae
AM
386 entry = bfd_hash_allocate (table,
387 sizeof (struct elf32_hppa_link_hash_entry));
388 if (entry == NULL)
389 return entry;
30667bf3
AM
390 }
391
392 /* Call the allocation method of the superclass. */
ebe50bae
AM
393 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
394 if (entry != NULL)
30667bf3 395 {
875c0872 396 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 397
30667bf3 398 /* Initialize the local fields. */
875c0872 399 hh = hppa_elf_hash_entry (entry);
a63e02c7 400 hh->hsh_cache = NULL;
875c0872
DA
401 hh->dyn_relocs = NULL;
402 hh->plabel = 0;
9b52905e 403 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
404 }
405
ebe50bae 406 return entry;
252b5132
RH
407}
408
252b5132
RH
409/* Create the derived linker hash table. The PA ELF port uses the derived
410 hash table to keep information specific to the PA ELF linker (without
411 using static variables). */
412
413static struct bfd_link_hash_table *
c39a58e6 414elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 415{
875c0872
DA
416 struct elf32_hppa_link_hash_table *htab;
417 bfd_size_type amt = sizeof (*htab);
252b5132 418
9b52905e 419 htab = bfd_malloc (amt);
875c0872 420 if (htab == NULL)
252b5132 421 return NULL;
edd21aca 422
66eb6687
AM
423 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
424 sizeof (struct elf32_hppa_link_hash_entry)))
252b5132 425 {
875c0872 426 free (htab);
252b5132
RH
427 return NULL;
428 }
edd21aca
AM
429
430 /* Init the stub hash table too. */
66eb6687
AM
431 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
432 sizeof (struct elf32_hppa_stub_hash_entry)))
edd21aca
AM
433 return NULL;
434
875c0872
DA
435 htab->stub_bfd = NULL;
436 htab->add_stub_section = NULL;
437 htab->layout_sections_again = NULL;
438 htab->stub_group = NULL;
439 htab->sgot = NULL;
440 htab->srelgot = NULL;
441 htab->splt = NULL;
442 htab->srelplt = NULL;
443 htab->sdynbss = NULL;
444 htab->srelbss = NULL;
445 htab->text_segment_base = (bfd_vma) -1;
446 htab->data_segment_base = (bfd_vma) -1;
447 htab->multi_subspace = 0;
448 htab->has_12bit_branch = 0;
449 htab->has_17bit_branch = 0;
450 htab->has_22bit_branch = 0;
451 htab->need_plt_stub = 0;
452 htab->sym_sec.abfd = NULL;
9b52905e 453 htab->tls_ldm_got.refcount = 0;
875c0872 454
a63e02c7 455 return &htab->etab.root;
252b5132
RH
456}
457
e2d34d7d
DJ
458/* Free the derived linker hash table. */
459
460static void
875c0872 461elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab)
e2d34d7d 462{
875c0872
DA
463 struct elf32_hppa_link_hash_table *htab
464 = (struct elf32_hppa_link_hash_table *) btab;
e2d34d7d 465
a63e02c7 466 bfd_hash_table_free (&htab->bstab);
875c0872 467 _bfd_generic_link_hash_table_free (btab);
e2d34d7d
DJ
468}
469
30667bf3
AM
470/* Build a name for an entry in the stub hash table. */
471
edd21aca 472static char *
c39a58e6
AM
473hppa_stub_name (const asection *input_section,
474 const asection *sym_sec,
875c0872
DA
475 const struct elf32_hppa_link_hash_entry *hh,
476 const Elf_Internal_Rela *rela)
edd21aca
AM
477{
478 char *stub_name;
dc810e39 479 bfd_size_type len;
edd21aca 480
875c0872 481 if (hh)
30667bf3 482 {
9b52905e 483 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
484 stub_name = bfd_malloc (len);
485 if (stub_name != NULL)
9b52905e
NC
486 sprintf (stub_name, "%08x_%s+%x",
487 input_section->id & 0xffffffff,
488 hh_name (hh),
489 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
490 }
491 else
edd21aca 492 {
30667bf3
AM
493 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
494 stub_name = bfd_malloc (len);
495 if (stub_name != NULL)
9b52905e
NC
496 sprintf (stub_name, "%08x_%x:%x+%x",
497 input_section->id & 0xffffffff,
498 sym_sec->id & 0xffffffff,
499 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
500 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
501 }
502 return stub_name;
503}
252b5132 504
30667bf3
AM
505/* Look up an entry in the stub hash. Stub entries are cached because
506 creating the stub name takes a bit of time. */
507
508static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
509hppa_get_stub_entry (const asection *input_section,
510 const asection *sym_sec,
875c0872
DA
511 struct elf32_hppa_link_hash_entry *hh,
512 const Elf_Internal_Rela *rela,
c39a58e6 513 struct elf32_hppa_link_hash_table *htab)
252b5132 514{
a63e02c7 515 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
516 const asection *id_sec;
517
518 /* If this input section is part of a group of sections sharing one
519 stub section, then use the id of the first section in the group.
520 Stub names need to include a section id, as there may well be
521 more than one stub used to reach say, printf, and we need to
522 distinguish between them. */
83c81bfe 523 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 524
a63e02c7
DA
525 if (hh != NULL && hh->hsh_cache != NULL
526 && hh->hsh_cache->hh == hh
527 && hh->hsh_cache->id_sec == id_sec)
edd21aca 528 {
a63e02c7 529 hsh_entry = hh->hsh_cache;
30667bf3
AM
530 }
531 else
532 {
30667bf3 533 char *stub_name;
edd21aca 534
875c0872 535 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
536 if (stub_name == NULL)
537 return NULL;
edd21aca 538
a63e02c7 539 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 540 stub_name, FALSE, FALSE);
875c0872 541 if (hh != NULL)
a63e02c7 542 hh->hsh_cache = hsh_entry;
30667bf3
AM
543
544 free (stub_name);
edd21aca 545 }
30667bf3 546
a63e02c7 547 return hsh_entry;
30667bf3
AM
548}
549
30667bf3
AM
550/* Add a new stub entry to the stub hash. Not all fields of the new
551 stub entry are initialised. */
552
553static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
554hppa_add_stub (const char *stub_name,
555 asection *section,
556 struct elf32_hppa_link_hash_table *htab)
30667bf3 557{
25f72752 558 asection *link_sec;
30667bf3 559 asection *stub_sec;
875c0872 560 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 561
83c81bfe
AM
562 link_sec = htab->stub_group[section->id].link_sec;
563 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 564 if (stub_sec == NULL)
edd21aca 565 {
83c81bfe 566 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
567 if (stub_sec == NULL)
568 {
d4c88bbb 569 size_t namelen;
dc810e39 570 bfd_size_type len;
30667bf3
AM
571 char *s_name;
572
d4c88bbb
AM
573 namelen = strlen (link_sec->name);
574 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 575 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
576 if (s_name == NULL)
577 return NULL;
578
d4c88bbb
AM
579 memcpy (s_name, link_sec->name, namelen);
580 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 581 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
582 if (stub_sec == NULL)
583 return NULL;
83c81bfe 584 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 585 }
83c81bfe 586 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 587 }
252b5132 588
30667bf3 589 /* Enter this entry into the linker stub hash table. */
a63e02c7 590 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 591 TRUE, FALSE);
875c0872 592 if (hsh == NULL)
30667bf3 593 {
d003868e
AM
594 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
595 section->owner,
30667bf3
AM
596 stub_name);
597 return NULL;
edd21aca
AM
598 }
599
875c0872
DA
600 hsh->stub_sec = stub_sec;
601 hsh->stub_offset = 0;
602 hsh->id_sec = link_sec;
603 return hsh;
edd21aca
AM
604}
605
30667bf3
AM
606/* Determine the type of stub needed, if any, for a call. */
607
608static enum elf32_hppa_stub_type
c39a58e6 609hppa_type_of_stub (asection *input_sec,
875c0872
DA
610 const Elf_Internal_Rela *rela,
611 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
612 bfd_vma destination,
613 struct bfd_link_info *info)
edd21aca 614{
edd21aca 615 bfd_vma location;
30667bf3
AM
616 bfd_vma branch_offset;
617 bfd_vma max_branch_offset;
618 unsigned int r_type;
619
875c0872 620 if (hh != NULL
a63e02c7
DA
621 && hh->eh.plt.offset != (bfd_vma) -1
622 && hh->eh.dynindx != -1
875c0872 623 && !hh->plabel
a252afa4 624 && (info->shared
a63e02c7
DA
625 || !hh->eh.def_regular
626 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 627 {
067fa4a6
AM
628 /* We need an import stub. Decide between hppa_stub_import
629 and hppa_stub_import_shared later. */
30667bf3
AM
630 return hppa_stub_import;
631 }
edd21aca 632
30667bf3
AM
633 /* Determine where the call point is. */
634 location = (input_sec->output_offset
635 + input_sec->output_section->vma
875c0872 636 + rela->r_offset);
edd21aca 637
30667bf3 638 branch_offset = destination - location - 8;
875c0872 639 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 640
30667bf3
AM
641 /* Determine if a long branch stub is needed. parisc branch offsets
642 are relative to the second instruction past the branch, ie. +8
643 bytes on from the branch instruction location. The offset is
644 signed and counts in units of 4 bytes. */
645 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
646 max_branch_offset = (1 << (17 - 1)) << 2;
647
30667bf3 648 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
649 max_branch_offset = (1 << (12 - 1)) << 2;
650
25f72752 651 else /* R_PARISC_PCREL22F. */
9b52905e 652 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 653
30667bf3 654 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
655 return hppa_stub_long_branch;
656
30667bf3
AM
657 return hppa_stub_none;
658}
edd21aca 659
30667bf3
AM
660/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
661 IN_ARG contains the link info pointer. */
edd21aca 662
30667bf3
AM
663#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
664#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 665
30667bf3 666#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 667#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 668#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 669
3ee1d854
AM
670#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
671#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 672#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 673#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 674
3ee1d854
AM
675#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
676#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 677
30667bf3
AM
678#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
679#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
680#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
681#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 682
067fa4a6 683#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
684#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
685#define NOP 0x08000240 /* nop */
686#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
687#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
688#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 689
30667bf3
AM
690#ifndef R19_STUBS
691#define R19_STUBS 1
692#endif
edd21aca 693
30667bf3
AM
694#if R19_STUBS
695#define LDW_R1_DLT LDW_R1_R19
696#else
697#define LDW_R1_DLT LDW_R1_DP
698#endif
edd21aca 699
b34976b6 700static bfd_boolean
875c0872 701hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 702{
875c0872 703 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 704 struct bfd_link_info *info;
83c81bfe 705 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
706 asection *stub_sec;
707 bfd *stub_bfd;
708 bfd_byte *loc;
709 bfd_vma sym_value;
74d1c347 710 bfd_vma insn;
8dea1268 711 bfd_vma off;
74d1c347 712 int val;
30667bf3 713 int size;
edd21aca 714
30667bf3 715 /* Massage our args to the form they really have. */
875c0872
DA
716 hsh = hppa_stub_hash_entry (bh);
717 info = (struct bfd_link_info *)in_arg;
30667bf3 718
83c81bfe 719 htab = hppa_link_hash_table (info);
875c0872 720 stub_sec = hsh->stub_sec;
edd21aca 721
30667bf3 722 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
723 hsh->stub_offset = stub_sec->size;
724 loc = stub_sec->contents + hsh->stub_offset;
252b5132 725
30667bf3
AM
726 stub_bfd = stub_sec->owner;
727
875c0872 728 switch (hsh->stub_type)
30667bf3
AM
729 {
730 case hppa_stub_long_branch:
731 /* Create the long branch. A long branch is formed with "ldil"
732 loading the upper bits of the target address into a register,
733 then branching with "be" which adds in the lower bits.
734 The "be" has its delay slot nullified. */
875c0872
DA
735 sym_value = (hsh->target_value
736 + hsh->target_section->output_offset
737 + hsh->target_section->output_section->vma);
30667bf3 738
c39a58e6 739 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 740 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
741 bfd_put_32 (stub_bfd, insn, loc);
742
c39a58e6 743 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 744 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
745 bfd_put_32 (stub_bfd, insn, loc + 4);
746
30667bf3 747 size = 8;
edd21aca
AM
748 break;
749
30667bf3
AM
750 case hppa_stub_long_branch_shared:
751 /* Branches are relative. This is where we are going to. */
875c0872
DA
752 sym_value = (hsh->target_value
753 + hsh->target_section->output_offset
754 + hsh->target_section->output_section->vma);
30667bf3
AM
755
756 /* And this is where we are coming from, more or less. */
875c0872 757 sym_value -= (hsh->stub_offset
30667bf3
AM
758 + stub_sec->output_offset
759 + stub_sec->output_section->vma);
760
74d1c347 761 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 762 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 763 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
764 bfd_put_32 (stub_bfd, insn, loc + 4);
765
47d89dba 766 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 767 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
768 bfd_put_32 (stub_bfd, insn, loc + 8);
769 size = 12;
770 break;
edd21aca 771
30667bf3
AM
772 case hppa_stub_import:
773 case hppa_stub_import_shared:
a63e02c7 774 off = hsh->hh->eh.plt.offset;
8dea1268 775 if (off >= (bfd_vma) -2)
49e9d0d3 776 abort ();
8dea1268
AM
777
778 off &= ~ (bfd_vma) 1;
779 sym_value = (off
83c81bfe
AM
780 + htab->splt->output_offset
781 + htab->splt->output_section->vma
782 - elf_gp (htab->splt->output_section->owner));
30667bf3
AM
783
784 insn = ADDIL_DP;
785#if R19_STUBS
875c0872 786 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
787 insn = ADDIL_R19;
788#endif
c39a58e6 789 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 790 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 791 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 792
47d89dba
AM
793 /* It is critical to use lrsel/rrsel here because we are using
794 two different offsets (+0 and +4) from sym_value. If we use
795 lsel/rsel then with unfortunate sym_values we will round
796 sym_value+4 up to the next 2k block leading to a mis-match
797 between the lsel and rsel value. */
c39a58e6 798 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 799 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 800 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 801
83c81bfe 802 if (htab->multi_subspace)
30667bf3 803 {
47d89dba 804 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 805 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 806 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 807
74d1c347
AM
808 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
809 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
810 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
811 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 812
30667bf3
AM
813 size = 28;
814 }
815 else
816 {
74d1c347 817 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 818 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 819 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 820 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 821
30667bf3
AM
822 size = 16;
823 }
252b5132 824
30667bf3 825 break;
252b5132 826
30667bf3
AM
827 case hppa_stub_export:
828 /* Branches are relative. This is where we are going to. */
875c0872
DA
829 sym_value = (hsh->target_value
830 + hsh->target_section->output_offset
831 + hsh->target_section->output_section->vma);
252b5132 832
30667bf3 833 /* And this is where we are coming from. */
875c0872 834 sym_value -= (hsh->stub_offset
30667bf3
AM
835 + stub_sec->output_offset
836 + stub_sec->output_section->vma);
edd21aca 837
067fa4a6
AM
838 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
839 && (!htab->has_22bit_branch
840 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 841 {
edd21aca 842 (*_bfd_error_handler)
d003868e 843 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 844 hsh->target_section->owner,
d003868e 845 stub_sec,
875c0872 846 (long) hsh->stub_offset,
a63e02c7 847 hsh->bh_root.string);
30667bf3 848 bfd_set_error (bfd_error_bad_value);
b34976b6 849 return FALSE;
252b5132 850 }
30667bf3 851
74d1c347 852 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
853 if (!htab->has_22bit_branch)
854 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
855 else
856 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
857 bfd_put_32 (stub_bfd, insn, loc);
858
74d1c347
AM
859 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
860 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
861 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
862 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
863 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
864
865 /* Point the function symbol at the stub. */
a63e02c7
DA
866 hsh->hh->eh.root.u.def.section = stub_sec;
867 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
868
869 size = 24;
870 break;
871
872 default:
873 BFD_FAIL ();
b34976b6 874 return FALSE;
252b5132
RH
875 }
876
eea6121a 877 stub_sec->size += size;
b34976b6 878 return TRUE;
252b5132
RH
879}
880
30667bf3
AM
881#undef LDIL_R1
882#undef BE_SR4_R1
883#undef BL_R1
884#undef ADDIL_R1
885#undef DEPI_R1
30667bf3
AM
886#undef LDW_R1_R21
887#undef LDW_R1_DLT
888#undef LDW_R1_R19
889#undef ADDIL_R19
890#undef LDW_R1_DP
891#undef LDSID_R21_R1
892#undef MTSP_R1
893#undef BE_SR0_R21
894#undef STW_RP
895#undef BV_R0_R21
896#undef BL_RP
897#undef NOP
898#undef LDW_RP
899#undef LDSID_RP_R1
900#undef BE_SR0_RP
252b5132 901
30667bf3
AM
902/* As above, but don't actually build the stub. Just bump offset so
903 we know stub section sizes. */
904
b34976b6 905static bfd_boolean
875c0872 906hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 907{
875c0872 908 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 909 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
910 int size;
911
912 /* Massage our args to the form they really have. */
875c0872 913 hsh = hppa_stub_hash_entry (bh);
c39a58e6 914 htab = in_arg;
30667bf3 915
875c0872 916 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 917 size = 8;
875c0872 918 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 919 size = 12;
875c0872 920 else if (hsh->stub_type == hppa_stub_export)
30667bf3 921 size = 24;
74d1c347 922 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 923 {
83c81bfe 924 if (htab->multi_subspace)
30667bf3
AM
925 size = 28;
926 else
927 size = 16;
928 }
252b5132 929
875c0872 930 hsh->stub_sec->size += size;
b34976b6 931 return TRUE;
30667bf3 932}
252b5132 933
30667bf3
AM
934/* Return nonzero if ABFD represents an HPPA ELF32 file.
935 Additionally we set the default architecture and machine. */
936
b34976b6 937static bfd_boolean
c39a58e6 938elf32_hppa_object_p (bfd *abfd)
30667bf3 939{
24a5e751
L
940 Elf_Internal_Ehdr * i_ehdrp;
941 unsigned int flags;
252b5132 942
24a5e751
L
943 i_ehdrp = elf_elfheader (abfd);
944 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
945 {
6c21aa76
NC
946 /* GCC on hppa-linux produces binaries with OSABI=Linux,
947 but the kernel produces corefiles with OSABI=SysV. */
948 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
949 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 950 return FALSE;
24a5e751 951 }
225247f0
JT
952 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
953 {
954 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
955 but the kernel produces corefiles with OSABI=SysV. */
956 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
957 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
958 return FALSE;
959 }
24a5e751
L
960 else
961 {
962 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 963 return FALSE;
24a5e751
L
964 }
965
966 flags = i_ehdrp->e_flags;
30667bf3
AM
967 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
968 {
969 case EFA_PARISC_1_0:
970 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
971 case EFA_PARISC_1_1:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
973 case EFA_PARISC_2_0:
974 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
975 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
976 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
977 }
b34976b6 978 return TRUE;
252b5132
RH
979}
980
30667bf3
AM
981/* Create the .plt and .got sections, and set up our hash table
982 short-cuts to various dynamic sections. */
983
b34976b6 984static bfd_boolean
c39a58e6 985elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 986{
83c81bfe 987 struct elf32_hppa_link_hash_table *htab;
875c0872 988 struct elf_link_hash_entry *eh;
edd21aca 989
30667bf3 990 /* Don't try to create the .plt and .got twice. */
83c81bfe
AM
991 htab = hppa_link_hash_table (info);
992 if (htab->splt != NULL)
b34976b6 993 return TRUE;
edd21aca 994
30667bf3
AM
995 /* Call the generic code to do most of the work. */
996 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 997 return FALSE;
252b5132 998
83c81bfe
AM
999 htab->splt = bfd_get_section_by_name (abfd, ".plt");
1000 htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
30667bf3 1001
83c81bfe 1002 htab->sgot = bfd_get_section_by_name (abfd, ".got");
3496cb2a
L
1003 htab->srelgot = bfd_make_section_with_flags (abfd, ".rela.got",
1004 (SEC_ALLOC
1005 | SEC_LOAD
1006 | SEC_HAS_CONTENTS
1007 | SEC_IN_MEMORY
1008 | SEC_LINKER_CREATED
1009 | SEC_READONLY));
83c81bfe 1010 if (htab->srelgot == NULL
83c81bfe 1011 || ! bfd_set_section_alignment (abfd, htab->srelgot, 2))
b34976b6 1012 return FALSE;
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
30667bf3 1105/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1106 calculate needed space in the global offset table, procedure linkage
1107 table, and dynamic reloc sections. At this point we haven't
1108 necessarily read all the input files. */
252b5132 1109
b34976b6 1110static bfd_boolean
c39a58e6
AM
1111elf32_hppa_check_relocs (bfd *abfd,
1112 struct bfd_link_info *info,
1113 asection *sec,
1114 const Elf_Internal_Rela *relocs)
252b5132 1115{
30667bf3 1116 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1117 struct elf_link_hash_entry **eh_syms;
1118 const Elf_Internal_Rela *rela;
1119 const Elf_Internal_Rela *rela_end;
83c81bfe 1120 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
1121 asection *sreloc;
1122 asection *stubreloc;
9b52905e 1123 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1124
1049f94e 1125 if (info->relocatable)
b34976b6 1126 return TRUE;
30667bf3 1127
83c81bfe 1128 htab = hppa_link_hash_table (info);
30667bf3 1129 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1130 eh_syms = elf_sym_hashes (abfd);
30667bf3
AM
1131 sreloc = NULL;
1132 stubreloc = NULL;
1133
875c0872
DA
1134 rela_end = relocs + sec->reloc_count;
1135 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1136 {
1137 enum {
1138 NEED_GOT = 1,
1139 NEED_PLT = 2,
1140 NEED_DYNREL = 4,
98ceb8ce 1141 PLT_PLABEL = 8
30667bf3 1142 };
edd21aca 1143
30667bf3 1144 unsigned int r_symndx, r_type;
875c0872
DA
1145 struct elf32_hppa_link_hash_entry *hh;
1146 int need_entry = 0;
252b5132 1147
875c0872 1148 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1149
30667bf3 1150 if (r_symndx < symtab_hdr->sh_info)
875c0872 1151 hh = NULL;
30667bf3 1152 else
f7c5057a 1153 {
875c0872 1154 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1155 while (hh->eh.root.type == bfd_link_hash_indirect
1156 || hh->eh.root.type == bfd_link_hash_warning)
1157 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
f7c5057a 1158 }
252b5132 1159
875c0872 1160 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1161 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1162
30667bf3
AM
1163 switch (r_type)
1164 {
1165 case R_PARISC_DLTIND14F:
1166 case R_PARISC_DLTIND14R:
1167 case R_PARISC_DLTIND21L:
1168 /* This symbol requires a global offset table entry. */
1169 need_entry = NEED_GOT;
30667bf3
AM
1170 break;
1171
1172 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1173 case R_PARISC_PLABEL21L:
1174 case R_PARISC_PLABEL32:
74d1c347 1175 /* If the addend is non-zero, we break badly. */
875c0872 1176 if (rela->r_addend != 0)
49e9d0d3 1177 abort ();
74d1c347
AM
1178
1179 /* If we are creating a shared library, then we need to
1180 create a PLT entry for all PLABELs, because PLABELs with
1181 local symbols may be passed via a pointer to another
1182 object. Additionally, output a dynamic relocation
4dc86686 1183 pointing to the PLT entry.
875c0872 1184
4dc86686
AM
1185 For executables, the original 32-bit ABI allowed two
1186 different styles of PLABELs (function pointers): For
1187 global functions, the PLABEL word points into the .plt
1188 two bytes past a (function address, gp) pair, and for
1189 local functions the PLABEL points directly at the
1190 function. The magic +2 for the first type allows us to
1191 differentiate between the two. As you can imagine, this
1192 is a real pain when it comes to generating code to call
1193 functions indirectly or to compare function pointers.
1194 We avoid the mess by always pointing a PLABEL into the
1195 .plt, even for local functions. */
74d1c347 1196 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1197 break;
1198
1199 case R_PARISC_PCREL12F:
83c81bfe 1200 htab->has_12bit_branch = 1;
067fa4a6
AM
1201 goto branch_common;
1202
30667bf3
AM
1203 case R_PARISC_PCREL17C:
1204 case R_PARISC_PCREL17F:
83c81bfe 1205 htab->has_17bit_branch = 1;
067fa4a6
AM
1206 goto branch_common;
1207
30667bf3 1208 case R_PARISC_PCREL22F:
067fa4a6
AM
1209 htab->has_22bit_branch = 1;
1210 branch_common:
47d89dba
AM
1211 /* Function calls might need to go through the .plt, and
1212 might require long branch stubs. */
875c0872 1213 if (hh == NULL)
30667bf3
AM
1214 {
1215 /* We know local syms won't need a .plt entry, and if
1216 they need a long branch stub we can't guarantee that
1217 we can reach the stub. So just flag an error later
1218 if we're doing a shared link and find we need a long
1219 branch stub. */
1220 continue;
1221 }
1222 else
1223 {
1224 /* Global symbols will need a .plt entry if they remain
1225 global, and in most cases won't need a long branch
1226 stub. Unfortunately, we have to cater for the case
1227 where a symbol is forced local by versioning, or due
1228 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1229 need_entry = NEED_PLT;
a63e02c7 1230 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1231 need_entry = 0;
30667bf3
AM
1232 }
1233 break;
1234
36751eee 1235 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1236 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1237 case R_PARISC_PCREL14F: /* PC relative load/store. */
1238 case R_PARISC_PCREL14R:
1239 case R_PARISC_PCREL17R: /* External branches. */
1240 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1241 case R_PARISC_PCREL32:
30667bf3
AM
1242 /* We don't need to propagate the relocation if linking a
1243 shared object since these are section relative. */
1244 continue;
1245
1246 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1247 case R_PARISC_DPREL14R:
1248 case R_PARISC_DPREL21L:
1249 if (info->shared)
1250 {
1251 (*_bfd_error_handler)
d003868e
AM
1252 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1253 abfd,
30667bf3
AM
1254 elf_hppa_howto_table[r_type].name);
1255 bfd_set_error (bfd_error_bad_value);
b34976b6 1256 return FALSE;
30667bf3
AM
1257 }
1258 /* Fall through. */
1259
1260 case R_PARISC_DIR17F: /* Used for external branches. */
1261 case R_PARISC_DIR17R:
47d89dba
AM
1262 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1263 case R_PARISC_DIR14R:
30667bf3 1264 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1265 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1266 /* We may want to output a dynamic relocation later. */
1267 need_entry = NEED_DYNREL;
1268 break;
1269
1270 /* This relocation describes the C++ object vtable hierarchy.
1271 Reconstruct it for later use during GC. */
1272 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1273 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1274 return FALSE;
30667bf3
AM
1275 continue;
1276
1277 /* This relocation describes which C++ vtable entries are actually
1278 used. Record for later use during GC. */
1279 case R_PARISC_GNU_VTENTRY:
a63e02c7 1280 if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1281 return FALSE;
30667bf3
AM
1282 continue;
1283
9b52905e
NC
1284 case R_PARISC_TLS_GD21L:
1285 case R_PARISC_TLS_GD14R:
1286 case R_PARISC_TLS_LDM21L:
1287 case R_PARISC_TLS_LDM14R:
1288 need_entry = NEED_GOT;
1289 break;
1290
1291 case R_PARISC_TLS_IE21L:
1292 case R_PARISC_TLS_IE14R:
1293 if (info->shared)
1294 info->flags |= DF_STATIC_TLS;
1295 need_entry = NEED_GOT;
1296 break;
1297
30667bf3
AM
1298 default:
1299 continue;
1300 }
1301
1302 /* Now carry out our orders. */
1303 if (need_entry & NEED_GOT)
1304 {
9b52905e
NC
1305 switch (r_type)
1306 {
1307 default:
1308 tls_type = GOT_NORMAL;
1309 break;
1310 case R_PARISC_TLS_GD21L:
1311 case R_PARISC_TLS_GD14R:
1312 tls_type |= GOT_TLS_GD;
1313 break;
1314 case R_PARISC_TLS_LDM21L:
1315 case R_PARISC_TLS_LDM14R:
1316 tls_type |= GOT_TLS_LDM;
1317 break;
1318 case R_PARISC_TLS_IE21L:
1319 case R_PARISC_TLS_IE14R:
1320 tls_type |= GOT_TLS_IE;
1321 break;
1322 }
1323
30667bf3 1324 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1325 relocation for this entry. */
83c81bfe 1326 if (htab->sgot == NULL)
30667bf3 1327 {
a63e02c7
DA
1328 if (htab->etab.dynobj == NULL)
1329 htab->etab.dynobj = abfd;
1330 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1331 return FALSE;
30667bf3
AM
1332 }
1333
9b52905e
NC
1334 if (r_type == R_PARISC_TLS_LDM21L
1335 || r_type == R_PARISC_TLS_LDM14R)
1336 hppa_link_hash_table (info)->tls_ldm_got.refcount += 1;
30667bf3
AM
1337 else
1338 {
9b52905e
NC
1339 if (hh != NULL)
1340 {
1341 hh->eh.got.refcount += 1;
1342 old_tls_type = hh->tls_type;
1343 }
1344 else
1345 {
1346 bfd_signed_vma *local_got_refcounts;
1347
1348 /* This is a global offset table entry for a local symbol. */
1349 local_got_refcounts = elf_local_got_refcounts (abfd);
1350 if (local_got_refcounts == NULL)
1351 {
1352 bfd_size_type size;
1353
1354 /* Allocate space for local got offsets and local
1355 plt offsets. Done this way to save polluting
1356 elf_obj_tdata with another target specific
1357 pointer. */
1358 size = symtab_hdr->sh_info;
1359 size *= 2 * sizeof (bfd_signed_vma);
1360 /* Add in space to store the local GOT TLS types. */
1361 size += symtab_hdr->sh_info;
1362 local_got_refcounts = bfd_zalloc (abfd, size);
1363 if (local_got_refcounts == NULL)
1364 return FALSE;
1365 elf_local_got_refcounts (abfd) = local_got_refcounts;
1366 memset (hppa_elf_local_got_tls_type (abfd),
1367 GOT_UNKNOWN, symtab_hdr->sh_info);
1368 }
1369 local_got_refcounts[r_symndx] += 1;
1370
1371 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1372 }
1373
1374 tls_type |= old_tls_type;
1375
1376 if (old_tls_type != tls_type)
1377 {
1378 if (hh != NULL)
1379 hh->tls_type = tls_type;
1380 else
1381 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1382 }
1383
30667bf3
AM
1384 }
1385 }
1386
1387 if (need_entry & NEED_PLT)
1388 {
1389 /* If we are creating a shared library, and this is a reloc
1390 against a weak symbol or a global symbol in a dynamic
1391 object, then we will be creating an import stub and a
1392 .plt entry for the symbol. Similarly, on a normal link
1393 to symbols defined in a dynamic object we'll need the
1394 import stub and a .plt entry. We don't know yet whether
1395 the symbol is defined or not, so make an entry anyway and
1396 clean up later in adjust_dynamic_symbol. */
1397 if ((sec->flags & SEC_ALLOC) != 0)
1398 {
875c0872 1399 if (hh != NULL)
30667bf3 1400 {
a63e02c7
DA
1401 hh->eh.needs_plt = 1;
1402 hh->eh.plt.refcount += 1;
74d1c347 1403
36605136
AM
1404 /* If this .plt entry is for a plabel, mark it so
1405 that adjust_dynamic_symbol will keep the entry
1406 even if it appears to be local. */
74d1c347 1407 if (need_entry & PLT_PLABEL)
875c0872 1408 hh->plabel = 1;
74d1c347
AM
1409 }
1410 else if (need_entry & PLT_PLABEL)
1411 {
3ac8354b 1412 bfd_signed_vma *local_got_refcounts;
68fb2e56 1413 bfd_signed_vma *local_plt_refcounts;
74d1c347 1414
3ac8354b 1415 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1416 if (local_got_refcounts == NULL)
1417 {
dc810e39 1418 bfd_size_type size;
74d1c347
AM
1419
1420 /* Allocate space for local got offsets and local
1421 plt offsets. */
dc810e39
AM
1422 size = symtab_hdr->sh_info;
1423 size *= 2 * sizeof (bfd_signed_vma);
9b52905e
NC
1424 /* Add in space to store the local GOT TLS types. */
1425 size += symtab_hdr->sh_info;
c39a58e6 1426 local_got_refcounts = bfd_zalloc (abfd, size);
74d1c347 1427 if (local_got_refcounts == NULL)
b34976b6 1428 return FALSE;
74d1c347 1429 elf_local_got_refcounts (abfd) = local_got_refcounts;
74d1c347 1430 }
68fb2e56
AM
1431 local_plt_refcounts = (local_got_refcounts
1432 + symtab_hdr->sh_info);
ebe50bae 1433 local_plt_refcounts[r_symndx] += 1;
30667bf3 1434 }
30667bf3
AM
1435 }
1436 }
1437
98ceb8ce 1438 if (need_entry & NEED_DYNREL)
30667bf3
AM
1439 {
1440 /* Flag this symbol as having a non-got, non-plt reference
1441 so that we generate copy relocs if it turns out to be
1442 dynamic. */
875c0872 1443 if (hh != NULL && !info->shared)
a63e02c7 1444 hh->eh.non_got_ref = 1;
30667bf3
AM
1445
1446 /* If we are creating a shared library then we need to copy
1447 the reloc into the shared library. However, if we are
1448 linking with -Bsymbolic, we need only copy absolute
1449 relocs or relocs against symbols that are not defined in
1450 an object we are including in the link. PC- or DP- or
1451 DLT-relative relocs against any local sym or global sym
1452 with DEF_REGULAR set, can be discarded. At this point we
1453 have not seen all the input files, so it is possible that
1454 DEF_REGULAR is not set now but will be set later (it is
1455 never cleared). We account for that possibility below by
98ceb8ce 1456 storing information in the dyn_relocs field of the
30667bf3
AM
1457 hash table entry.
1458
1459 A similar situation to the -Bsymbolic case occurs when
1460 creating shared libraries and symbol visibility changes
1461 render the symbol local.
1462
1463 As it turns out, all the relocs we will be creating here
1464 are absolute, so we cannot remove them on -Bsymbolic
1465 links or visibility changes anyway. A STUB_REL reloc
1466 is absolute too, as in that case it is the reloc in the
1467 stub we will be creating, rather than copying the PCREL
56882138
AM
1468 reloc in the branch.
1469
1470 If on the other hand, we are creating an executable, we
1471 may need to keep relocations for symbols satisfied by a
1472 dynamic library if we manage to avoid copy relocs for the
1473 symbol. */
446f2863
AM
1474 if ((info->shared
1475 && (sec->flags & SEC_ALLOC) != 0
1476 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1477 || (hh != NULL
446f2863 1478 && (!info->symbolic
a63e02c7
DA
1479 || hh->eh.root.type == bfd_link_hash_defweak
1480 || !hh->eh.def_regular))))
4fc8051d
AM
1481 || (ELIMINATE_COPY_RELOCS
1482 && !info->shared
446f2863 1483 && (sec->flags & SEC_ALLOC) != 0
875c0872 1484 && hh != NULL
a63e02c7
DA
1485 && (hh->eh.root.type == bfd_link_hash_defweak
1486 || !hh->eh.def_regular)))
30667bf3 1487 {
875c0872
DA
1488 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1489 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1490
30667bf3
AM
1491 /* Create a reloc section in dynobj and make room for
1492 this reloc. */
98ceb8ce 1493 if (sreloc == NULL)
30667bf3
AM
1494 {
1495 char *name;
3ac8354b 1496 bfd *dynobj;
30667bf3 1497
98ceb8ce
AM
1498 name = (bfd_elf_string_from_elf_section
1499 (abfd,
1500 elf_elfheader (abfd)->e_shstrndx,
1501 elf_section_data (sec)->rel_hdr.sh_name));
30667bf3
AM
1502 if (name == NULL)
1503 {
1504 (*_bfd_error_handler)
1505 (_("Could not find relocation section for %s"),
1506 sec->name);
1507 bfd_set_error (bfd_error_bad_value);
b34976b6 1508 return FALSE;
30667bf3
AM
1509 }
1510
a63e02c7
DA
1511 if (htab->etab.dynobj == NULL)
1512 htab->etab.dynobj = abfd;
3ac8354b 1513
a63e02c7 1514 dynobj = htab->etab.dynobj;
98ceb8ce
AM
1515 sreloc = bfd_get_section_by_name (dynobj, name);
1516 if (sreloc == NULL)
30667bf3
AM
1517 {
1518 flagword flags;
1519
30667bf3
AM
1520 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1521 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1522 if ((sec->flags & SEC_ALLOC) != 0)
1523 flags |= SEC_ALLOC | SEC_LOAD;
3496cb2a
L
1524 sreloc = bfd_make_section_with_flags (dynobj,
1525 name,
1526 flags);
98ceb8ce 1527 if (sreloc == NULL
98ceb8ce 1528 || !bfd_set_section_alignment (dynobj, sreloc, 2))
b34976b6 1529 return FALSE;
30667bf3 1530 }
30667bf3 1531
98ceb8ce 1532 elf_section_data (sec)->sreloc = sreloc;
30667bf3
AM
1533 }
1534
98ceb8ce
AM
1535 /* If this is a global symbol, we count the number of
1536 relocations we need for this symbol. */
875c0872 1537 if (hh != NULL)
30667bf3 1538 {
875c0872 1539 hdh_head = &hh->dyn_relocs;
ec338859
AM
1540 }
1541 else
1542 {
1543 /* Track dynamic relocs needed for local syms too.
1544 We really need local syms available to do this
1545 easily. Oh well. */
1546
875c0872 1547 asection *sr;
6edfbbad
DJ
1548 void *vpp;
1549
875c0872
DA
1550 sr = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
1551 sec, r_symndx);
1552 if (sr == NULL)
b34976b6 1553 return FALSE;
30667bf3 1554
6edfbbad
DJ
1555 vpp = &elf_section_data (sr)->local_dynrel;
1556 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1557 }
1558
875c0872
DA
1559 hdh_p = *hdh_head;
1560 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1561 {
a63e02c7 1562 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1563 if (hdh_p == NULL)
b34976b6 1564 return FALSE;
a63e02c7 1565 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1566 *hdh_head = hdh_p;
1567 hdh_p->sec = sec;
1568 hdh_p->count = 0;
98ceb8ce 1569#if RELATIVE_DYNRELOCS
875c0872 1570 hdh_p->relative_count = 0;
98ceb8ce 1571#endif
ec338859 1572 }
98ceb8ce 1573
875c0872 1574 hdh_p->count += 1;
98ceb8ce 1575#if RELATIVE_DYNRELOCS
ec338859 1576 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1577 hdh_p->relative_count += 1;
98ceb8ce 1578#endif
30667bf3
AM
1579 }
1580 }
1581 }
edd21aca 1582
b34976b6 1583 return TRUE;
edd21aca
AM
1584}
1585
30667bf3
AM
1586/* Return the section that should be marked against garbage collection
1587 for a given relocation. */
1588
1589static asection *
c39a58e6 1590elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1591 struct bfd_link_info *info,
875c0872
DA
1592 Elf_Internal_Rela *rela,
1593 struct elf_link_hash_entry *hh,
c39a58e6 1594 Elf_Internal_Sym *sym)
30667bf3 1595{
875c0872 1596 if (hh != NULL)
07adf181
AM
1597 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1598 {
1599 case R_PARISC_GNU_VTINHERIT:
1600 case R_PARISC_GNU_VTENTRY:
1601 return NULL;
1602 }
30667bf3 1603
07adf181 1604 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1605}
1606
30667bf3
AM
1607/* Update the got and plt entry reference counts for the section being
1608 removed. */
edd21aca 1609
b34976b6 1610static bfd_boolean
c39a58e6
AM
1611elf32_hppa_gc_sweep_hook (bfd *abfd,
1612 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1613 asection *sec,
1614 const Elf_Internal_Rela *relocs)
edd21aca 1615{
30667bf3 1616 Elf_Internal_Shdr *symtab_hdr;
875c0872 1617 struct elf_link_hash_entry **eh_syms;
30667bf3 1618 bfd_signed_vma *local_got_refcounts;
74d1c347 1619 bfd_signed_vma *local_plt_refcounts;
875c0872 1620 const Elf_Internal_Rela *rela, *relend;
30667bf3 1621
ec338859 1622 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1623
30667bf3 1624 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1625 eh_syms = elf_sym_hashes (abfd);
30667bf3 1626 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1627 local_plt_refcounts = local_got_refcounts;
1628 if (local_plt_refcounts != NULL)
1629 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1630
30667bf3 1631 relend = relocs + sec->reloc_count;
875c0872 1632 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1633 {
1634 unsigned long r_symndx;
1635 unsigned int r_type;
875c0872 1636 struct elf_link_hash_entry *eh = NULL;
26e41594 1637
875c0872 1638 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1639 if (r_symndx >= symtab_hdr->sh_info)
1640 {
875c0872
DA
1641 struct elf32_hppa_link_hash_entry *hh;
1642 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1643 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1644
875c0872
DA
1645 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1646 while (eh->root.type == bfd_link_hash_indirect
1647 || eh->root.type == bfd_link_hash_warning)
1648 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1649 hh = hppa_elf_hash_entry (eh);
26e41594 1650
a63e02c7 1651 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1652 if (hdh_p->sec == sec)
26e41594
AM
1653 {
1654 /* Everything must go for SEC. */
a63e02c7 1655 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1656 break;
1657 }
1658 }
1659
875c0872 1660 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1661 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1662
26e41594
AM
1663 switch (r_type)
1664 {
1665 case R_PARISC_DLTIND14F:
1666 case R_PARISC_DLTIND14R:
1667 case R_PARISC_DLTIND21L:
9b52905e
NC
1668 case R_PARISC_TLS_GD21L:
1669 case R_PARISC_TLS_GD14R:
1670 case R_PARISC_TLS_IE21L:
1671 case R_PARISC_TLS_IE14R:
875c0872 1672 if (eh != NULL)
26e41594 1673 {
875c0872
DA
1674 if (eh->got.refcount > 0)
1675 eh->got.refcount -= 1;
26e41594
AM
1676 }
1677 else if (local_got_refcounts != NULL)
1678 {
1679 if (local_got_refcounts[r_symndx] > 0)
1680 local_got_refcounts[r_symndx] -= 1;
1681 }
1682 break;
98ceb8ce 1683
9b52905e
NC
1684 case R_PARISC_TLS_LDM21L:
1685 case R_PARISC_TLS_LDM14R:
1686 hppa_link_hash_table (info)->tls_ldm_got.refcount -= 1;
1687 break;
1688
26e41594
AM
1689 case R_PARISC_PCREL12F:
1690 case R_PARISC_PCREL17C:
1691 case R_PARISC_PCREL17F:
1692 case R_PARISC_PCREL22F:
875c0872 1693 if (eh != NULL)
26e41594 1694 {
875c0872
DA
1695 if (eh->plt.refcount > 0)
1696 eh->plt.refcount -= 1;
26e41594
AM
1697 }
1698 break;
1699
1700 case R_PARISC_PLABEL14R:
1701 case R_PARISC_PLABEL21L:
1702 case R_PARISC_PLABEL32:
875c0872 1703 if (eh != NULL)
26e41594 1704 {
875c0872
DA
1705 if (eh->plt.refcount > 0)
1706 eh->plt.refcount -= 1;
26e41594
AM
1707 }
1708 else if (local_plt_refcounts != NULL)
1709 {
1710 if (local_plt_refcounts[r_symndx] > 0)
1711 local_plt_refcounts[r_symndx] -= 1;
1712 }
1713 break;
1714
1715 default:
1716 break;
1717 }
1718 }
252b5132 1719
b34976b6 1720 return TRUE;
252b5132
RH
1721}
1722
edfc032f
AM
1723/* Support for core dump NOTE sections. */
1724
1725static bfd_boolean
1726elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1727{
1728 int offset;
1729 size_t size;
1730
1731 switch (note->descsz)
1732 {
1733 default:
1734 return FALSE;
1735
1736 case 396: /* Linux/hppa */
1737 /* pr_cursig */
1738 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1739
1740 /* pr_pid */
1741 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
1742
1743 /* pr_reg */
1744 offset = 72;
1745 size = 320;
1746
1747 break;
1748 }
1749
1750 /* Make a ".reg/999" section. */
1751 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1752 size, note->descpos + offset);
1753}
1754
1755static bfd_boolean
1756elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1757{
1758 switch (note->descsz)
1759 {
1760 default:
1761 return FALSE;
1762
1763 case 124: /* Linux/hppa elf_prpsinfo. */
1764 elf_tdata (abfd)->core_program
1765 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1766 elf_tdata (abfd)->core_command
1767 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1768 }
1769
1770 /* Note that for some reason, a spurious space is tacked
1771 onto the end of the args in some (at least one anyway)
1772 implementations, so strip it off if it exists. */
1773 {
1774 char *command = elf_tdata (abfd)->core_command;
1775 int n = strlen (command);
1776
1777 if (0 < n && command[n - 1] == ' ')
1778 command[n - 1] = '\0';
1779 }
1780
1781 return TRUE;
1782}
1783
74d1c347
AM
1784/* Our own version of hide_symbol, so that we can keep plt entries for
1785 plabels. */
1786
1787static void
c39a58e6 1788elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1789 struct elf_link_hash_entry *eh,
c39a58e6 1790 bfd_boolean force_local)
74d1c347 1791{
e5094212
AM
1792 if (force_local)
1793 {
875c0872
DA
1794 eh->forced_local = 1;
1795 if (eh->dynindx != -1)
e5094212 1796 {
875c0872 1797 eh->dynindx = -1;
e5094212 1798 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1799 eh->dynstr_index);
e5094212
AM
1800 }
1801 }
1802
9b52905e 1803 if (! hppa_elf_hash_entry (eh)->plabel)
74d1c347 1804 {
875c0872
DA
1805 eh->needs_plt = 0;
1806 eh->plt = elf_hash_table (info)->init_plt_refcount;
74d1c347
AM
1807 }
1808}
1809
30667bf3
AM
1810/* Adjust a symbol defined by a dynamic object and referenced by a
1811 regular object. The current definition is in some section of the
1812 dynamic object, but we're not including those sections. We have to
1813 change the definition to something the rest of the link can
1814 understand. */
252b5132 1815
b34976b6 1816static bfd_boolean
c39a58e6 1817elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1818 struct elf_link_hash_entry *eh)
252b5132 1819{
83c81bfe 1820 struct elf32_hppa_link_hash_table *htab;
875c0872 1821 asection *sec;
30667bf3
AM
1822
1823 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1824 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1825 if (eh->type == STT_FUNC
1826 || eh->needs_plt)
30667bf3 1827 {
875c0872
DA
1828 if (eh->plt.refcount <= 0
1829 || (eh->def_regular
1830 && eh->root.type != bfd_link_hash_defweak
1831 && ! hppa_elf_hash_entry (eh)->plabel
30667bf3
AM
1832 && (!info->shared || info->symbolic)))
1833 {
1834 /* The .plt entry is not needed when:
1835 a) Garbage collection has removed all references to the
1836 symbol, or
1837 b) We know for certain the symbol is defined in this
74d1c347
AM
1838 object, and it's not a weak definition, nor is the symbol
1839 used by a plabel relocation. Either this object is the
1840 application or we are doing a shared symbolic link. */
1841
875c0872
DA
1842 eh->plt.offset = (bfd_vma) -1;
1843 eh->needs_plt = 0;
30667bf3 1844 }
4dc86686 1845
b34976b6 1846 return TRUE;
30667bf3 1847 }
bbd7ec4a 1848 else
875c0872 1849 eh->plt.offset = (bfd_vma) -1;
edd21aca 1850
30667bf3
AM
1851 /* If this is a weak symbol, and there is a real definition, the
1852 processor independent code will have arranged for us to see the
1853 real definition first, and we can just use the same value. */
875c0872 1854 if (eh->u.weakdef != NULL)
edd21aca 1855 {
875c0872
DA
1856 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1857 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1858 abort ();
875c0872
DA
1859 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1860 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1861 if (ELIMINATE_COPY_RELOCS)
875c0872 1862 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1863 return TRUE;
30667bf3 1864 }
edd21aca 1865
30667bf3
AM
1866 /* This is a reference to a symbol defined by a dynamic object which
1867 is not a function. */
1868
1869 /* If we are creating a shared library, we must presume that the
1870 only references to the symbol are via the global offset table.
1871 For such cases we need not do anything here; the relocations will
1872 be handled correctly by relocate_section. */
1873 if (info->shared)
b34976b6 1874 return TRUE;
30667bf3
AM
1875
1876 /* If there are no references to this symbol that do not use the
1877 GOT, we don't need to generate a copy reloc. */
875c0872 1878 if (!eh->non_got_ref)
b34976b6 1879 return TRUE;
30667bf3 1880
4fc8051d 1881 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1882 {
875c0872
DA
1883 struct elf32_hppa_link_hash_entry *hh;
1884 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1885
875c0872 1886 hh = hppa_elf_hash_entry (eh);
a63e02c7 1887 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1888 {
875c0872
DA
1889 sec = hdh_p->sec->output_section;
1890 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1891 break;
1892 }
1893
1894 /* If we didn't find any dynamic relocs in read-only sections, then
1895 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1896 if (hdh_p == NULL)
4fc8051d 1897 {
875c0872 1898 eh->non_got_ref = 0;
4fc8051d
AM
1899 return TRUE;
1900 }
ebe50bae
AM
1901 }
1902
909272ee
AM
1903 if (eh->size == 0)
1904 {
1905 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1906 eh->root.root.string);
1907 return TRUE;
1908 }
1909
30667bf3
AM
1910 /* We must allocate the symbol in our .dynbss section, which will
1911 become part of the .bss section of the executable. There will be
1912 an entry for this symbol in the .dynsym section. The dynamic
1913 object will contain position independent code, so all references
1914 from the dynamic object to this symbol will go through the global
1915 offset table. The dynamic linker will use the .dynsym entry to
1916 determine the address it must put in the global offset table, so
1917 both the dynamic object and the regular object will refer to the
1918 same memory location for the variable. */
1919
3ac8354b 1920 htab = hppa_link_hash_table (info);
30667bf3
AM
1921
1922 /* We must generate a COPY reloc to tell the dynamic linker to
1923 copy the initial value out of the dynamic object and into the
3ac8354b 1924 runtime process image. */
875c0872 1925 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0)
30667bf3 1926 {
eea6121a 1927 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1928 eh->needs_copy = 1;
edd21aca 1929 }
252b5132 1930
875c0872 1931 sec = htab->sdynbss;
edd21aca 1932
027297b7 1933 return _bfd_elf_adjust_dynamic_copy (eh, sec);
252b5132
RH
1934}
1935
e5ee5df1 1936/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1937 ie. plabel entries. */
a8d02d66 1938
b34976b6 1939static bfd_boolean
875c0872 1940allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1941{
1942 struct bfd_link_info *info;
1943 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1944 struct elf32_hppa_link_hash_entry *hh;
1945 asection *sec;
a8d02d66 1946
875c0872 1947 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1948 return TRUE;
a8d02d66 1949
875c0872
DA
1950 if (eh->root.type == bfd_link_hash_warning)
1951 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 1952
875c0872 1953 info = (struct bfd_link_info *) inf;
9b52905e 1954 hh = hppa_elf_hash_entry (eh);
a8d02d66 1955 htab = hppa_link_hash_table (info);
a63e02c7 1956 if (htab->etab.dynamic_sections_created
875c0872 1957 && eh->plt.refcount > 0)
e5ee5df1
AM
1958 {
1959 /* Make sure this symbol is output as a dynamic symbol.
1960 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1961 if (eh->dynindx == -1
1962 && !eh->forced_local
1963 && eh->type != STT_PARISC_MILLI)
a8d02d66 1964 {
875c0872 1965 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1966 return FALSE;
e5ee5df1
AM
1967 }
1968
875c0872 1969 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1970 {
067fa4a6
AM
1971 /* Allocate these later. From this point on, h->plabel
1972 means that the plt entry is only used by a plabel.
1973 We'll be using a normal plt entry for this symbol, so
1974 clear the plabel indicator. */
875c0872
DA
1975
1976 hh->plabel = 0;
e5ee5df1 1977 }
875c0872 1978 else if (hh->plabel)
e5ee5df1
AM
1979 {
1980 /* Make an entry in the .plt section for plabel references
1981 that won't have a .plt entry for other reasons. */
875c0872
DA
1982 sec = htab->splt;
1983 eh->plt.offset = sec->size;
1984 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1985 }
1986 else
e5ee5df1
AM
1987 {
1988 /* No .plt entry needed. */
875c0872
DA
1989 eh->plt.offset = (bfd_vma) -1;
1990 eh->needs_plt = 0;
e5ee5df1
AM
1991 }
1992 }
1993 else
1994 {
875c0872
DA
1995 eh->plt.offset = (bfd_vma) -1;
1996 eh->needs_plt = 0;
a8d02d66
AM
1997 }
1998
b34976b6 1999 return TRUE;
a8d02d66
AM
2000}
2001
4dc86686
AM
2002/* Allocate space in .plt, .got and associated reloc sections for
2003 global syms. */
2004
b34976b6 2005static bfd_boolean
875c0872 2006allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
2007{
2008 struct bfd_link_info *info;
83c81bfe 2009 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2010 asection *sec;
2011 struct elf32_hppa_link_hash_entry *hh;
2012 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2013
875c0872 2014 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2015 return TRUE;
73a74a62 2016
875c0872
DA
2017 if (eh->root.type == bfd_link_hash_warning)
2018 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2019
c39a58e6 2020 info = inf;
83c81bfe 2021 htab = hppa_link_hash_table (info);
875c0872
DA
2022 hh = hppa_elf_hash_entry (eh);
2023
a63e02c7 2024 if (htab->etab.dynamic_sections_created
875c0872
DA
2025 && eh->plt.offset != (bfd_vma) -1
2026 && !hh->plabel
2027 && eh->plt.refcount > 0)
4dc86686 2028 {
e5ee5df1 2029 /* Make an entry in the .plt section. */
875c0872
DA
2030 sec = htab->splt;
2031 eh->plt.offset = sec->size;
2032 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2033
e5ee5df1 2034 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2035 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2036 htab->need_plt_stub = 1;
4dc86686 2037 }
edd21aca 2038
875c0872 2039 if (eh->got.refcount > 0)
4dc86686 2040 {
446f2863
AM
2041 /* Make sure this symbol is output as a dynamic symbol.
2042 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2043 if (eh->dynindx == -1
2044 && !eh->forced_local
2045 && eh->type != STT_PARISC_MILLI)
446f2863 2046 {
875c0872 2047 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2048 return FALSE;
446f2863
AM
2049 }
2050
875c0872
DA
2051 sec = htab->sgot;
2052 eh->got.offset = sec->size;
2053 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2054 /* R_PARISC_TLS_GD* needs two GOT entries */
2055 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2056 sec->size += GOT_ENTRY_SIZE * 2;
2057 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2058 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2059 if (htab->etab.dynamic_sections_created
ce757d15 2060 && (info->shared
875c0872
DA
2061 || (eh->dynindx != -1
2062 && !eh->forced_local)))
ce757d15 2063 {
eea6121a 2064 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2065 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2066 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2067 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2068 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2069 }
4dc86686
AM
2070 }
2071 else
875c0872 2072 eh->got.offset = (bfd_vma) -1;
30667bf3 2073
875c0872 2074 if (hh->dyn_relocs == NULL)
b34976b6 2075 return TRUE;
30667bf3 2076
98ceb8ce
AM
2077 /* If this is a -Bsymbolic shared link, then we need to discard all
2078 space allocated for dynamic pc-relative relocs against symbols
2079 defined in a regular object. For the normal shared case, discard
2080 space for relocs that have become local due to symbol visibility
2081 changes. */
2082 if (info->shared)
446f2863 2083 {
98ceb8ce 2084#if RELATIVE_DYNRELOCS
875c0872 2085 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2086 {
875c0872 2087 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2088
875c0872 2089 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2090 {
875c0872
DA
2091 hdh_p->count -= hdh_p->relative_count;
2092 hdh_p->relative_count = 0;
2093 if (hdh_p->count == 0)
a63e02c7 2094 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2095 else
a63e02c7 2096 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2097 }
2098 }
2099#endif
4fc8051d
AM
2100
2101 /* Also discard relocs on undefined weak syms with non-default
2102 visibility. */
22d606e9 2103 if (hh->dyn_relocs != NULL
875c0872 2104 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2105 {
2106 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2107 hh->dyn_relocs = NULL;
2108
2109 /* Make sure undefined weak symbols are output as a dynamic
2110 symbol in PIEs. */
2111 else if (eh->dynindx == -1
2112 && !eh->forced_local)
2113 {
2114 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2115 return FALSE;
2116 }
2117 }
446f2863 2118 }
98ceb8ce 2119 else
30667bf3 2120 {
98ceb8ce
AM
2121 /* For the non-shared case, discard space for relocs against
2122 symbols which turn out to need copy relocs or are not
2123 dynamic. */
875c0872
DA
2124
2125 if (!eh->non_got_ref
4fc8051d 2126 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2127 && eh->def_dynamic
2128 && !eh->def_regular)
a63e02c7 2129 || (htab->etab.dynamic_sections_created
875c0872
DA
2130 && (eh->root.type == bfd_link_hash_undefweak
2131 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2132 {
2133 /* Make sure this symbol is output as a dynamic symbol.
2134 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2135 if (eh->dynindx == -1
2136 && !eh->forced_local
2137 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2138 {
875c0872 2139 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2140 return FALSE;
98ceb8ce
AM
2141 }
2142
2143 /* If that succeeded, we know we'll be keeping all the
2144 relocs. */
875c0872 2145 if (eh->dynindx != -1)
98ceb8ce
AM
2146 goto keep;
2147 }
446f2863 2148
875c0872 2149 hh->dyn_relocs = NULL;
b34976b6 2150 return TRUE;
98ceb8ce 2151
ec338859 2152 keep: ;
30667bf3 2153 }
30667bf3 2154
98ceb8ce 2155 /* Finally, allocate space. */
a63e02c7 2156 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2157 {
875c0872
DA
2158 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2159 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2160 }
30667bf3 2161
b34976b6 2162 return TRUE;
30667bf3 2163}
30667bf3 2164
d5c73c2f
AM
2165/* This function is called via elf_link_hash_traverse to force
2166 millicode symbols local so they do not end up as globals in the
2167 dynamic symbol table. We ought to be able to do this in
2168 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2169 for all dynamic symbols. Arguably, this is a bug in
2170 elf_adjust_dynamic_symbol. */
2171
b34976b6 2172static bfd_boolean
875c0872 2173clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2174 struct bfd_link_info *info)
d5c73c2f 2175{
875c0872
DA
2176 if (eh->root.type == bfd_link_hash_warning)
2177 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2178
875c0872
DA
2179 if (eh->type == STT_PARISC_MILLI
2180 && !eh->forced_local)
e0522e89 2181 {
875c0872 2182 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2183 }
b34976b6 2184 return TRUE;
d5c73c2f
AM
2185}
2186
98ceb8ce
AM
2187/* Find any dynamic relocs that apply to read-only sections. */
2188
b34976b6 2189static bfd_boolean
875c0872 2190readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2191{
875c0872
DA
2192 struct elf32_hppa_link_hash_entry *hh;
2193 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2194
875c0872
DA
2195 if (eh->root.type == bfd_link_hash_warning)
2196 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2197
875c0872 2198 hh = hppa_elf_hash_entry (eh);
a63e02c7 2199 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2200 {
875c0872 2201 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2202
875c0872 2203 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2204 {
c39a58e6 2205 struct bfd_link_info *info = inf;
98ceb8ce
AM
2206
2207 info->flags |= DF_TEXTREL;
2208
2209 /* Not an error, just cut short the traversal. */
b34976b6 2210 return FALSE;
98ceb8ce
AM
2211 }
2212 }
b34976b6 2213 return TRUE;
98ceb8ce
AM
2214}
2215
30667bf3
AM
2216/* Set the sizes of the dynamic sections. */
2217
b34976b6 2218static bfd_boolean
c39a58e6
AM
2219elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2220 struct bfd_link_info *info)
30667bf3 2221{
83c81bfe 2222 struct elf32_hppa_link_hash_table *htab;
30667bf3 2223 bfd *dynobj;
98ceb8ce 2224 bfd *ibfd;
875c0872 2225 asection *sec;
b34976b6 2226 bfd_boolean relocs;
30667bf3 2227
83c81bfe 2228 htab = hppa_link_hash_table (info);
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
1badb539
AM
2522 /* Count the number of input BFDs and find the top input section id. */
2523 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2524 input_bfd != NULL;
2525 input_bfd = input_bfd->link_next)
2526 {
2527 bfd_count += 1;
25f72752
AM
2528 for (section = input_bfd->sections;
2529 section != NULL;
2530 section = section->next)
2531 {
2532 if (top_id < section->id)
2533 top_id = section->id;
2534 }
30667bf3 2535 }
b4655ea9 2536 htab->bfd_count = bfd_count;
30667bf3 2537
dc810e39 2538 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2539 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2540 if (htab->stub_group == NULL)
b4655ea9 2541 return -1;
1badb539 2542
b4655ea9 2543 /* We can't use output_bfd->section_count here to find the top output
1badb539 2544 section index as some sections may have been removed, and
8423293d 2545 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2546 for (section = output_bfd->sections, top_index = 0;
2547 section != NULL;
2548 section = section->next)
2549 {
2550 if (top_index < section->index)
2551 top_index = section->index;
2552 }
2553
b4655ea9 2554 htab->top_index = top_index;
dc810e39 2555 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2556 input_list = bfd_malloc (amt);
b4655ea9 2557 htab->input_list = input_list;
25f72752 2558 if (input_list == NULL)
b4655ea9 2559 return -1;
25f72752 2560
1badb539
AM
2561 /* For sections we aren't interested in, mark their entries with a
2562 value we can check later. */
2563 list = input_list + top_index;
2564 do
2565 *list = bfd_abs_section_ptr;
2566 while (list-- != input_list);
2567
2568 for (section = output_bfd->sections;
2569 section != NULL;
2570 section = section->next)
2571 {
47d89dba 2572 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2573 input_list[section->index] = NULL;
2574 }
2575
b4655ea9
AM
2576 return 1;
2577}
2578
2579/* The linker repeatedly calls this function for each input section,
2580 in the order that input sections are linked into output sections.
2581 Build lists of input sections to determine groupings between which
2582 we may insert linker stubs. */
2583
2584void
c39a58e6 2585elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2586{
2587 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2588
2589 if (isec->output_section->index <= htab->top_index)
25f72752 2590 {
b4655ea9
AM
2591 asection **list = htab->input_list + isec->output_section->index;
2592 if (*list != bfd_abs_section_ptr)
25f72752 2593 {
b4655ea9 2594 /* Steal the link_sec pointer for our list. */
83c81bfe 2595#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2596 /* This happens to make the list in reverse order,
2597 which is what we want. */
2598 PREV_SEC (isec) = *list;
2599 *list = isec;
25f72752
AM
2600 }
2601 }
b4655ea9 2602}
25f72752 2603
b4655ea9
AM
2604/* See whether we can group stub sections together. Grouping stub
2605 sections may result in fewer stubs. More importantly, we need to
2606 put all .init* and .fini* stubs at the beginning of the .init or
2607 .fini output sections respectively, because glibc splits the
2608 _init and _fini functions into multiple parts. Putting a stub in
2609 the middle of a function is not a good idea. */
2610
2611static void
c39a58e6
AM
2612group_sections (struct elf32_hppa_link_hash_table *htab,
2613 bfd_size_type stub_group_size,
2614 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2615{
2616 asection **list = htab->input_list + htab->top_index;
1badb539 2617 do
25f72752
AM
2618 {
2619 asection *tail = *list;
1badb539
AM
2620 if (tail == bfd_abs_section_ptr)
2621 continue;
25f72752
AM
2622 while (tail != NULL)
2623 {
2624 asection *curr;
2625 asection *prev;
2626 bfd_size_type total;
00b28bb0 2627 bfd_boolean big_sec;
25f72752
AM
2628
2629 curr = tail;
eea6121a 2630 total = tail->size;
00b28bb0
AM
2631 big_sec = total >= stub_group_size;
2632
25f72752
AM
2633 while ((prev = PREV_SEC (curr)) != NULL
2634 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2635 < stub_group_size))
25f72752
AM
2636 curr = prev;
2637
2638 /* OK, the size from the start of CURR to the end is less
a248e267 2639 than 240000 bytes and thus can be handled by one stub
25f72752 2640 section. (or the tail section is itself larger than
a248e267 2641 240000 bytes, in which case we may be toast.)
25f72752
AM
2642 We should really be keeping track of the total size of
2643 stubs added here, as stubs contribute to the final output
2644 section size. That's a little tricky, and this way will
a248e267
AM
2645 only break if stubs added total more than 22144 bytes, or
2646 2768 long branch stubs. It seems unlikely for more than
2647 2768 different functions to be called, especially from
2648 code only 240000 bytes long. This limit used to be
2649 250000, but c++ code tends to generate lots of little
2650 functions, and sometimes violated the assumption. */
25f72752
AM
2651 do
2652 {
2653 prev = PREV_SEC (tail);
2654 /* Set up this stub group. */
83c81bfe 2655 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2656 }
2657 while (tail != curr && (tail = prev) != NULL);
2658
a248e267 2659 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2660 bytes before the stub section can be handled by it too.
2661 Don't do this if we have a really large section after the
2662 stubs, as adding more stubs increases the chance that
2663 branches may not reach into the stub section. */
2664 if (!stubs_always_before_branch && !big_sec)
25f72752 2665 {
47d89dba
AM
2666 total = 0;
2667 while (prev != NULL
2668 && ((total += tail->output_offset - prev->output_offset)
2669 < stub_group_size))
2670 {
2671 tail = prev;
2672 prev = PREV_SEC (tail);
83c81bfe 2673 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2674 }
25f72752
AM
2675 }
2676 tail = prev;
2677 }
2678 }
b4655ea9
AM
2679 while (list-- != htab->input_list);
2680 free (htab->input_list);
1badb539 2681#undef PREV_SEC
b4655ea9
AM
2682}
2683
2684/* Read in all local syms for all input bfds, and create hash entries
2685 for export stubs if we are building a multi-subspace shared lib.
2686 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2687
2688static int
c39a58e6 2689get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2690{
2691 unsigned int bfd_indx;
2692 Elf_Internal_Sym *local_syms, **all_local_syms;
2693 int stub_changed = 0;
2694 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3
AM
2695
2696 /* We want to read in symbol extension records only once. To do this
2697 we need to read in the local symbols in parallel and save them for
2698 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2699 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2700 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2701 htab->all_local_syms = all_local_syms;
30667bf3 2702 if (all_local_syms == NULL)
b4655ea9 2703 return -1;
30667bf3
AM
2704
2705 /* Walk over all the input BFDs, swapping in local symbols.
2706 If we are creating a shared library, create hash entries for the
2707 export stubs. */
b4655ea9 2708 for (bfd_indx = 0;
30667bf3 2709 input_bfd != NULL;
25f72752 2710 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2711 {
2712 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2713
252b5132
RH
2714 /* We'll need the symbol table in a second. */
2715 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2716 if (symtab_hdr->sh_info == 0)
2717 continue;
2718
6cdc0ccc
AM
2719 /* We need an array of the local symbols attached to the input bfd. */
2720 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2721 if (local_syms == NULL)
edd21aca 2722 {
6cdc0ccc
AM
2723 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2724 symtab_hdr->sh_info, 0,
2725 NULL, NULL, NULL);
2726 /* Cache them for elf_link_input_bfd. */
2727 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2728 }
6cdc0ccc
AM
2729 if (local_syms == NULL)
2730 return -1;
edd21aca 2731
6cdc0ccc 2732 all_local_syms[bfd_indx] = local_syms;
edd21aca 2733
83c81bfe 2734 if (info->shared && htab->multi_subspace)
30667bf3 2735 {
875c0872
DA
2736 struct elf_link_hash_entry **eh_syms;
2737 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2738 unsigned int symcount;
2739
2740 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2741 - symtab_hdr->sh_info);
875c0872
DA
2742 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2743 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2744
2745 /* Look through the global syms for functions; We need to
2746 build export stubs for all globally visible functions. */
875c0872 2747 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2748 {
875c0872 2749 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2750
875c0872 2751 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2752
a63e02c7
DA
2753 while (hh->eh.root.type == bfd_link_hash_indirect
2754 || hh->eh.root.type == bfd_link_hash_warning)
2755 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2756
2757 /* At this point in the link, undefined syms have been
2758 resolved, so we need to check that the symbol was
2759 defined in this BFD. */
a63e02c7
DA
2760 if ((hh->eh.root.type == bfd_link_hash_defined
2761 || hh->eh.root.type == bfd_link_hash_defweak)
2762 && hh->eh.type == STT_FUNC
2763 && hh->eh.root.u.def.section->output_section != NULL
2764 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2765 == output_bfd)
a63e02c7
DA
2766 && hh->eh.root.u.def.section->owner == input_bfd
2767 && hh->eh.def_regular
2768 && !hh->eh.forced_local
2769 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2770 {
2771 asection *sec;
2772 const char *stub_name;
875c0872 2773 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2774
a63e02c7 2775 sec = hh->eh.root.u.def.section;
9b52905e 2776 stub_name = hh_name (hh);
a63e02c7 2777 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2778 stub_name,
b34976b6 2779 FALSE, FALSE);
875c0872 2780 if (hsh == NULL)
30667bf3 2781 {
875c0872
DA
2782 hsh = hppa_add_stub (stub_name, sec, htab);
2783 if (!hsh)
b4655ea9 2784 return -1;
30667bf3 2785
a63e02c7
DA
2786 hsh->target_value = hh->eh.root.u.def.value;
2787 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2788 hsh->stub_type = hppa_stub_export;
a63e02c7 2789 hsh->hh = hh;
30667bf3
AM
2790 stub_changed = 1;
2791 }
2792 else
2793 {
d003868e
AM
2794 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2795 input_bfd,
8f615d07 2796 stub_name);
30667bf3
AM
2797 }
2798 }
2799 }
30667bf3
AM
2800 }
2801 }
edd21aca 2802
b4655ea9
AM
2803 return stub_changed;
2804}
2805
2806/* Determine and set the size of the stub section for a final link.
2807
2808 The basic idea here is to examine all the relocations looking for
2809 PC-relative calls to a target that is unreachable with a "bl"
2810 instruction. */
2811
b34976b6 2812bfd_boolean
c39a58e6
AM
2813elf32_hppa_size_stubs
2814 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2815 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2816 asection * (*add_stub_section) (const char *, asection *),
2817 void (*layout_sections_again) (void))
b4655ea9
AM
2818{
2819 bfd_size_type stub_group_size;
b34976b6
AM
2820 bfd_boolean stubs_always_before_branch;
2821 bfd_boolean stub_changed;
b4655ea9
AM
2822 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2823
2824 /* Stash our params away. */
2825 htab->stub_bfd = stub_bfd;
2826 htab->multi_subspace = multi_subspace;
2827 htab->add_stub_section = add_stub_section;
2828 htab->layout_sections_again = layout_sections_again;
2829 stubs_always_before_branch = group_size < 0;
2830 if (group_size < 0)
2831 stub_group_size = -group_size;
2832 else
2833 stub_group_size = group_size;
2834 if (stub_group_size == 1)
2835 {
2836 /* Default values. */
acc990f2
AM
2837 if (stubs_always_before_branch)
2838 {
2839 stub_group_size = 7680000;
2840 if (htab->has_17bit_branch || htab->multi_subspace)
2841 stub_group_size = 240000;
2842 if (htab->has_12bit_branch)
2843 stub_group_size = 7500;
2844 }
2845 else
2846 {
2847 stub_group_size = 6971392;
2848 if (htab->has_17bit_branch || htab->multi_subspace)
2849 stub_group_size = 217856;
2850 if (htab->has_12bit_branch)
2851 stub_group_size = 6808;
2852 }
b4655ea9
AM
2853 }
2854
2855 group_sections (htab, stub_group_size, stubs_always_before_branch);
2856
2857 switch (get_local_syms (output_bfd, info->input_bfds, info))
2858 {
2859 default:
2860 if (htab->all_local_syms)
2861 goto error_ret_free_local;
b34976b6 2862 return FALSE;
b4655ea9
AM
2863
2864 case 0:
b34976b6 2865 stub_changed = FALSE;
b4655ea9
AM
2866 break;
2867
2868 case 1:
b34976b6 2869 stub_changed = TRUE;
b4655ea9
AM
2870 break;
2871 }
2872
edd21aca
AM
2873 while (1)
2874 {
b4655ea9
AM
2875 bfd *input_bfd;
2876 unsigned int bfd_indx;
30667bf3
AM
2877 asection *stub_sec;
2878
25f72752 2879 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2880 input_bfd != NULL;
25f72752 2881 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2882 {
2883 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2884 asection *section;
2885 Elf_Internal_Sym *local_syms;
30667bf3
AM
2886
2887 /* We'll need the symbol table in a second. */
2888 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2889 if (symtab_hdr->sh_info == 0)
2890 continue;
2891
b4655ea9 2892 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2893
2894 /* Walk over each section attached to the input bfd. */
2895 for (section = input_bfd->sections;
2896 section != NULL;
25f72752 2897 section = section->next)
30667bf3 2898 {
30667bf3
AM
2899 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2900
2901 /* If there aren't any relocs, then there's nothing more
2902 to do. */
2903 if ((section->flags & SEC_RELOC) == 0
2904 || section->reloc_count == 0)
2905 continue;
2906
25f72752
AM
2907 /* If this section is a link-once section that will be
2908 discarded, then don't create any stubs. */
2909 if (section->output_section == NULL
2910 || section->output_section->owner != output_bfd)
2911 continue;
2912
1e2f5b6e
AM
2913 /* Get the relocs. */
2914 internal_relocs
c39a58e6 2915 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2916 info->keep_memory);
30667bf3 2917 if (internal_relocs == NULL)
1e2f5b6e 2918 goto error_ret_free_local;
30667bf3
AM
2919
2920 /* Now examine each relocation. */
2921 irela = internal_relocs;
2922 irelaend = irela + section->reloc_count;
2923 for (; irela < irelaend; irela++)
2924 {
2925 unsigned int r_type, r_indx;
2926 enum elf32_hppa_stub_type stub_type;
875c0872 2927 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2928 asection *sym_sec;
2929 bfd_vma sym_value;
2930 bfd_vma destination;
875c0872 2931 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2932 char *stub_name;
25f72752 2933 const asection *id_sec;
30667bf3
AM
2934
2935 r_type = ELF32_R_TYPE (irela->r_info);
2936 r_indx = ELF32_R_SYM (irela->r_info);
2937
2938 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2939 {
2940 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2941 error_ret_free_internal:
2942 if (elf_section_data (section)->relocs == NULL)
2943 free (internal_relocs);
2944 goto error_ret_free_local;
30667bf3
AM
2945 }
2946
2947 /* Only look for stubs on call instructions. */
2948 if (r_type != (unsigned int) R_PARISC_PCREL12F
2949 && r_type != (unsigned int) R_PARISC_PCREL17F
2950 && r_type != (unsigned int) R_PARISC_PCREL22F)
2951 continue;
2952
2953 /* Now determine the call target, its name, value,
2954 section. */
2955 sym_sec = NULL;
2956 sym_value = 0;
2957 destination = 0;
875c0872 2958 hh = NULL;
30667bf3
AM
2959 if (r_indx < symtab_hdr->sh_info)
2960 {
2961 /* It's a local symbol. */
2962 Elf_Internal_Sym *sym;
2963 Elf_Internal_Shdr *hdr;
2964
2965 sym = local_syms + r_indx;
2966 hdr = elf_elfsections (input_bfd)[sym->st_shndx];
2967 sym_sec = hdr->bfd_section;
2968 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2969 sym_value = sym->st_value;
2970 destination = (sym_value + irela->r_addend
2971 + sym_sec->output_offset
2972 + sym_sec->output_section->vma);
2973 }
2974 else
2975 {
2976 /* It's an external symbol. */
2977 int e_indx;
2978
2979 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2980 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2981
a63e02c7
DA
2982 while (hh->eh.root.type == bfd_link_hash_indirect
2983 || hh->eh.root.type == bfd_link_hash_warning)
2984 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2985
a63e02c7
DA
2986 if (hh->eh.root.type == bfd_link_hash_defined
2987 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2988 {
a63e02c7
DA
2989 sym_sec = hh->eh.root.u.def.section;
2990 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2991 if (sym_sec->output_section != NULL)
2992 destination = (sym_value + irela->r_addend
2993 + sym_sec->output_offset
2994 + sym_sec->output_section->vma);
2995 }
a63e02c7 2996 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
2997 {
2998 if (! info->shared)
2999 continue;
3000 }
a63e02c7 3001 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 3002 {
59c2e50f 3003 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 3004 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3005 == STV_DEFAULT)
a63e02c7 3006 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3007 continue;
3008 }
30667bf3
AM
3009 else
3010 {
3011 bfd_set_error (bfd_error_bad_value);
3012 goto error_ret_free_internal;
3013 }
3014 }
3015
3016 /* Determine what (if any) linker stub is needed. */
875c0872 3017 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3018 destination, info);
30667bf3
AM
3019 if (stub_type == hppa_stub_none)
3020 continue;
3021
25f72752 3022 /* Support for grouping stub sections. */
83c81bfe 3023 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3024
30667bf3 3025 /* Get the name of this stub. */
875c0872 3026 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3027 if (!stub_name)
3028 goto error_ret_free_internal;
3029
a63e02c7 3030 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3031 stub_name,
b34976b6 3032 FALSE, FALSE);
875c0872 3033 if (hsh != NULL)
30667bf3
AM
3034 {
3035 /* The proper stub has already been created. */
3036 free (stub_name);
3037 continue;
3038 }
3039
875c0872
DA
3040 hsh = hppa_add_stub (stub_name, section, htab);
3041 if (hsh == NULL)
30667bf3
AM
3042 {
3043 free (stub_name);
1e2f5b6e 3044 goto error_ret_free_internal;
30667bf3
AM
3045 }
3046
875c0872
DA
3047 hsh->target_value = sym_value;
3048 hsh->target_section = sym_sec;
3049 hsh->stub_type = stub_type;
30667bf3
AM
3050 if (info->shared)
3051 {
3052 if (stub_type == hppa_stub_import)
875c0872 3053 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3054 else if (stub_type == hppa_stub_long_branch)
875c0872 3055 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3056 }
a63e02c7 3057 hsh->hh = hh;
b34976b6 3058 stub_changed = TRUE;
30667bf3
AM
3059 }
3060
3061 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3062 if (elf_section_data (section)->relocs == NULL)
3063 free (internal_relocs);
30667bf3
AM
3064 }
3065 }
3066
3067 if (!stub_changed)
3068 break;
3069
3070 /* OK, we've added some stubs. Find out the new size of the
3071 stub sections. */
83c81bfe 3072 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3073 stub_sec != NULL;
3074 stub_sec = stub_sec->next)
eea6121a 3075 stub_sec->size = 0;
74d1c347 3076
a63e02c7 3077 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3078
30667bf3 3079 /* Ask the linker to do its stuff. */
83c81bfe 3080 (*htab->layout_sections_again) ();
b34976b6 3081 stub_changed = FALSE;
30667bf3
AM
3082 }
3083
6cdc0ccc 3084 free (htab->all_local_syms);
b34976b6 3085 return TRUE;
30667bf3
AM
3086
3087 error_ret_free_local:
b4655ea9 3088 free (htab->all_local_syms);
b34976b6 3089 return FALSE;
30667bf3
AM
3090}
3091
30667bf3
AM
3092/* For a final link, this function is called after we have sized the
3093 stubs to provide a value for __gp. */
3094
b34976b6 3095bfd_boolean
c39a58e6 3096elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3097{
b4655ea9
AM
3098 struct bfd_link_hash_entry *h;
3099 asection *sec = NULL;
3100 bfd_vma gp_val = 0;
83c81bfe 3101 struct elf32_hppa_link_hash_table *htab;
30667bf3 3102
83c81bfe 3103 htab = hppa_link_hash_table (info);
a63e02c7 3104 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3105
df8634e3 3106 if (h != NULL
b4655ea9
AM
3107 && (h->type == bfd_link_hash_defined
3108 || h->type == bfd_link_hash_defweak))
30667bf3 3109 {
b4655ea9
AM
3110 gp_val = h->u.def.value;
3111 sec = h->u.def.section;
30667bf3
AM
3112 }
3113 else
3114 {
0eddce27
AM
3115 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3116 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3117
74d1c347
AM
3118 /* Choose to point our LTP at, in this order, one of .plt, .got,
3119 or .data, if these sections exist. In the case of choosing
3120 .plt try to make the LTP ideal for addressing anywhere in the
3121 .plt or .got with a 14 bit signed offset. Typically, the end
3122 of the .plt is the start of the .got, so choose .plt + 0x2000
3123 if either the .plt or .got is larger than 0x2000. If both
3124 the .plt and .got are smaller than 0x2000, choose the end of
3125 the .plt section. */
225247f0
JT
3126 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3127 ? NULL : splt;
74d1c347 3128 if (sec != NULL)
30667bf3 3129 {
eea6121a
AM
3130 gp_val = sec->size;
3131 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3132 {
3133 gp_val = 0x2000;
3134 }
3135 }
3136 else
3137 {
b4655ea9 3138 sec = sgot;
74d1c347
AM
3139 if (sec != NULL)
3140 {
225247f0
JT
3141 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3142 {
3143 /* We know we don't have a .plt. If .got is large,
3144 offset our LTP. */
3145 if (sec->size > 0x2000)
3146 gp_val = 0x2000;
3147 }
74d1c347
AM
3148 }
3149 else
3150 {
3151 /* No .plt or .got. Who cares what the LTP is? */
3152 sec = bfd_get_section_by_name (abfd, ".data");
3153 }
30667bf3 3154 }
df8634e3
AM
3155
3156 if (h != NULL)
3157 {
b4655ea9
AM
3158 h->type = bfd_link_hash_defined;
3159 h->u.def.value = gp_val;
df8634e3 3160 if (sec != NULL)
b4655ea9 3161 h->u.def.section = sec;
df8634e3 3162 else
b4655ea9 3163 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3164 }
30667bf3
AM
3165 }
3166
b32b5d6e 3167 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3168 gp_val += sec->output_section->vma + sec->output_offset;
3169
3170 elf_gp (abfd) = gp_val;
b34976b6 3171 return TRUE;
30667bf3
AM
3172}
3173
30667bf3
AM
3174/* Build all the stubs associated with the current output file. The
3175 stubs are kept in a hash table attached to the main linker hash
3176 table. We also set up the .plt entries for statically linked PIC
3177 functions here. This function is called via hppaelf_finish in the
3178 linker. */
3179
b34976b6 3180bfd_boolean
c39a58e6 3181elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3182{
3183 asection *stub_sec;
3184 struct bfd_hash_table *table;
83c81bfe 3185 struct elf32_hppa_link_hash_table *htab;
30667bf3 3186
83c81bfe 3187 htab = hppa_link_hash_table (info);
30667bf3 3188
83c81bfe 3189 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3190 stub_sec != NULL;
3191 stub_sec = stub_sec->next)
3192 {
dc810e39 3193 bfd_size_type size;
30667bf3
AM
3194
3195 /* Allocate memory to hold the linker stubs. */
eea6121a 3196 size = stub_sec->size;
c39a58e6 3197 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3198 if (stub_sec->contents == NULL && size != 0)
b34976b6 3199 return FALSE;
eea6121a 3200 stub_sec->size = 0;
30667bf3
AM
3201 }
3202
3203 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3204 table = &htab->bstab;
30667bf3
AM
3205 bfd_hash_traverse (table, hppa_build_one_stub, info);
3206
b34976b6 3207 return TRUE;
30667bf3
AM
3208}
3209
9b52905e
NC
3210/* Return the base vma address which should be subtracted from the real
3211 address when resolving a dtpoff relocation.
3212 This is PT_TLS segment p_vaddr. */
3213
3214static bfd_vma
3215dtpoff_base (struct bfd_link_info *info)
3216{
3217 /* If tls_sec is NULL, we should have signalled an error already. */
3218 if (elf_hash_table (info)->tls_sec == NULL)
3219 return 0;
3220 return elf_hash_table (info)->tls_sec->vma;
3221}
3222
3223/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3224
3225static bfd_vma
3226tpoff (struct bfd_link_info *info, bfd_vma address)
3227{
3228 struct elf_link_hash_table *htab = elf_hash_table (info);
3229
3230 /* If tls_sec is NULL, we should have signalled an error already. */
3231 if (htab->tls_sec == NULL)
3232 return 0;
3233 /* hppa TLS ABI is variant I and static TLS block start just after
3234 tcbhead structure which has 2 pointer fields. */
3235 return (address - htab->tls_sec->vma
3236 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3237}
3238
c46b7515
AM
3239/* Perform a final link. */
3240
b34976b6 3241static bfd_boolean
c39a58e6 3242elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3243{
4dc86686 3244 /* Invoke the regular ELF linker to do all the work. */
c152c796 3245 if (!bfd_elf_final_link (abfd, info))
b34976b6 3246 return FALSE;
c46b7515
AM
3247
3248 /* If we're producing a final executable, sort the contents of the
985142a4 3249 unwind section. */
46fe4e66 3250 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3251}
3252
3253/* Record the lowest address for the data and text segments. */
3254
3255static void
c39a58e6
AM
3256hppa_record_segment_addr (bfd *abfd ATTRIBUTE_UNUSED,
3257 asection *section,
3258 void *data)
c46b7515 3259{
83c81bfe 3260 struct elf32_hppa_link_hash_table *htab;
c46b7515 3261
875c0872 3262 htab = (struct elf32_hppa_link_hash_table*) data;
c46b7515
AM
3263
3264 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3265 {
3266 bfd_vma value = section->vma - section->filepos;
3267
3268 if ((section->flags & SEC_READONLY) != 0)
3269 {
83c81bfe
AM
3270 if (value < htab->text_segment_base)
3271 htab->text_segment_base = value;
c46b7515
AM
3272 }
3273 else
3274 {
83c81bfe
AM
3275 if (value < htab->data_segment_base)
3276 htab->data_segment_base = value;
c46b7515
AM
3277 }
3278 }
3279}
3280
30667bf3
AM
3281/* Perform a relocation as part of a final link. */
3282
3283static bfd_reloc_status_type
c39a58e6
AM
3284final_link_relocate (asection *input_section,
3285 bfd_byte *contents,
875c0872 3286 const Elf_Internal_Rela *rela,
c39a58e6
AM
3287 bfd_vma value,
3288 struct elf32_hppa_link_hash_table *htab,
3289 asection *sym_sec,
875c0872 3290 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3291 struct bfd_link_info *info)
30667bf3
AM
3292{
3293 int insn;
875c0872 3294 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3295 unsigned int orig_r_type = r_type;
30667bf3
AM
3296 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3297 int r_format = howto->bitsize;
3298 enum hppa_reloc_field_selector_type_alt r_field;
3299 bfd *input_bfd = input_section->owner;
875c0872 3300 bfd_vma offset = rela->r_offset;
30667bf3
AM
3301 bfd_vma max_branch_offset = 0;
3302 bfd_byte *hit_data = contents + offset;
875c0872 3303 bfd_signed_vma addend = rela->r_addend;
30667bf3 3304 bfd_vma location;
875c0872
DA
3305 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3306 int val;
30667bf3
AM
3307
3308 if (r_type == R_PARISC_NONE)
3309 return bfd_reloc_ok;
3310
3311 insn = bfd_get_32 (input_bfd, hit_data);
3312
3313 /* Find out where we are and where we're going. */
3314 location = (offset +
3315 input_section->output_offset +
3316 input_section->output_section->vma);
3317
a252afa4
DA
3318 /* If we are not building a shared library, convert DLTIND relocs to
3319 DPREL relocs. */
3320 if (!info->shared)
3321 {
3322 switch (r_type)
4fc8051d
AM
3323 {
3324 case R_PARISC_DLTIND21L:
3325 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3326 break;
3327
4fc8051d
AM
3328 case R_PARISC_DLTIND14R:
3329 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3330 break;
3331
4fc8051d
AM
3332 case R_PARISC_DLTIND14F:
3333 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3334 break;
3335 }
3336 }
3337
30667bf3
AM
3338 switch (r_type)
3339 {
3340 case R_PARISC_PCREL12F:
3341 case R_PARISC_PCREL17F:
3342 case R_PARISC_PCREL22F:
067fa4a6
AM
3343 /* If this call should go via the plt, find the import stub in
3344 the stub hash. */
30667bf3
AM
3345 if (sym_sec == NULL
3346 || sym_sec->output_section == NULL
875c0872 3347 || (hh != NULL
a63e02c7
DA
3348 && hh->eh.plt.offset != (bfd_vma) -1
3349 && hh->eh.dynindx != -1
875c0872 3350 && !hh->plabel
a252afa4 3351 && (info->shared
a63e02c7
DA
3352 || !hh->eh.def_regular
3353 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3354 {
875c0872
DA
3355 hsh = hppa_get_stub_entry (input_section, sym_sec,
3356 hh, rela, htab);
3357 if (hsh != NULL)
30667bf3 3358 {
875c0872
DA
3359 value = (hsh->stub_offset
3360 + hsh->stub_sec->output_offset
3361 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3362 addend = 0;
3363 }
875c0872 3364 else if (sym_sec == NULL && hh != NULL
a63e02c7 3365 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3366 {
db20fd76
AM
3367 /* It's OK if undefined weak. Calls to undefined weak
3368 symbols behave as if the "called" function
3369 immediately returns. We can thus call to a weak
3370 function without first checking whether the function
3371 is defined. */
30667bf3 3372 value = location;
db20fd76 3373 addend = 8;
30667bf3
AM
3374 }
3375 else
f09ebc7d 3376 return bfd_reloc_undefined;
30667bf3
AM
3377 }
3378 /* Fall thru. */
3379
3380 case R_PARISC_PCREL21L:
3381 case R_PARISC_PCREL17C:
3382 case R_PARISC_PCREL17R:
3383 case R_PARISC_PCREL14R:
3384 case R_PARISC_PCREL14F:
36751eee 3385 case R_PARISC_PCREL32:
30667bf3
AM
3386 /* Make it a pc relative offset. */
3387 value -= location;
3388 addend -= 8;
3389 break;
3390
3391 case R_PARISC_DPREL21L:
3392 case R_PARISC_DPREL14R:
3393 case R_PARISC_DPREL14F:
a252afa4
DA
3394 /* Convert instructions that use the linkage table pointer (r19) to
3395 instructions that use the global data pointer (dp). This is the
3396 most efficient way of using PIC code in an incomplete executable,
3397 but the user must follow the standard runtime conventions for
3398 accessing data for this to work. */
3399 if (orig_r_type == R_PARISC_DLTIND21L)
3400 {
3401 /* Convert addil instructions if the original reloc was a
3402 DLTIND21L. GCC sometimes uses a register other than r19 for
3403 the operation, so we must convert any addil instruction
3404 that uses this relocation. */
3405 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3406 insn = ADDIL_DP;
3407 else
3408 /* We must have a ldil instruction. It's too hard to find
3409 and convert the associated add instruction, so issue an
3410 error. */
3411 (*_bfd_error_handler)
d003868e
AM
3412 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3413 input_bfd,
3414 input_section,
875c0872 3415 offset,
a252afa4
DA
3416 howto->name,
3417 insn);
3418 }
3419 else if (orig_r_type == R_PARISC_DLTIND14F)
3420 {
3421 /* This must be a format 1 load/store. Change the base
3422 register to dp. */
3423 insn = (insn & 0xfc1ffff) | (27 << 21);
3424 }
3425
30667bf3 3426 /* For all the DP relative relocations, we need to examine the symbol's
95d0f04a
DA
3427 section. If it has no section or if it's a code section, then
3428 "data pointer relative" makes no sense. In that case we don't
3429 adjust the "value", and for 21 bit addil instructions, we change the
3430 source addend register from %dp to %r0. This situation commonly
3431 arises for undefined weak symbols and when a variable's "constness"
30667bf3
AM
3432 is declared differently from the way the variable is defined. For
3433 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3434 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3435 {
3436 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3437 == (((int) OP_ADDIL << 26) | (27 << 21)))
3438 {
3439 insn &= ~ (0x1f << 21);
30667bf3
AM
3440 }
3441 /* Now try to make things easy for the dynamic linker. */
3442
3443 break;
3444 }
74d1c347 3445 /* Fall thru. */
30667bf3
AM
3446
3447 case R_PARISC_DLTIND21L:
3448 case R_PARISC_DLTIND14R:
3449 case R_PARISC_DLTIND14F:
9b52905e
NC
3450 case R_PARISC_TLS_GD21L:
3451 case R_PARISC_TLS_GD14R:
3452 case R_PARISC_TLS_LDM21L:
3453 case R_PARISC_TLS_LDM14R:
3454 case R_PARISC_TLS_IE21L:
3455 case R_PARISC_TLS_IE14R:
30667bf3
AM
3456 value -= elf_gp (input_section->output_section->owner);
3457 break;
3458
c46b7515
AM
3459 case R_PARISC_SEGREL32:
3460 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3461 value -= htab->text_segment_base;
c46b7515 3462 else
83c81bfe 3463 value -= htab->data_segment_base;
c46b7515
AM
3464 break;
3465
30667bf3
AM
3466 default:
3467 break;
3468 }
3469
3470 switch (r_type)
3471 {
3472 case R_PARISC_DIR32:
47d89dba 3473 case R_PARISC_DIR14F:
30667bf3
AM
3474 case R_PARISC_DIR17F:
3475 case R_PARISC_PCREL17C:
3476 case R_PARISC_PCREL14F:
36751eee 3477 case R_PARISC_PCREL32:
30667bf3
AM
3478 case R_PARISC_DPREL14F:
3479 case R_PARISC_PLABEL32:
3480 case R_PARISC_DLTIND14F:
3481 case R_PARISC_SEGBASE:
3482 case R_PARISC_SEGREL32:
9b52905e
NC
3483 case R_PARISC_TLS_DTPMOD32:
3484 case R_PARISC_TLS_DTPOFF32:
3485 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3486 r_field = e_fsel;
3487 break;
3488
1bf42538 3489 case R_PARISC_DLTIND21L:
30667bf3 3490 case R_PARISC_PCREL21L:
30667bf3 3491 case R_PARISC_PLABEL21L:
1bf42538
JL
3492 r_field = e_lsel;
3493 break;
3494
3495 case R_PARISC_DIR21L:
3496 case R_PARISC_DPREL21L:
9b52905e
NC
3497 case R_PARISC_TLS_GD21L:
3498 case R_PARISC_TLS_LDM21L:
3499 case R_PARISC_TLS_LDO21L:
3500 case R_PARISC_TLS_IE21L:
3501 case R_PARISC_TLS_LE21L:
30667bf3
AM
3502 r_field = e_lrsel;
3503 break;
3504
30667bf3 3505 case R_PARISC_PCREL17R:
30667bf3 3506 case R_PARISC_PCREL14R:
30667bf3
AM
3507 case R_PARISC_PLABEL14R:
3508 case R_PARISC_DLTIND14R:
1bf42538
JL
3509 r_field = e_rsel;
3510 break;
3511
3512 case R_PARISC_DIR17R:
3513 case R_PARISC_DIR14R:
3514 case R_PARISC_DPREL14R:
9b52905e
NC
3515 case R_PARISC_TLS_GD14R:
3516 case R_PARISC_TLS_LDM14R:
3517 case R_PARISC_TLS_LDO14R:
3518 case R_PARISC_TLS_IE14R:
3519 case R_PARISC_TLS_LE14R:
30667bf3
AM
3520 r_field = e_rrsel;
3521 break;
3522
3523 case R_PARISC_PCREL12F:
3524 case R_PARISC_PCREL17F:
3525 case R_PARISC_PCREL22F:
3526 r_field = e_fsel;
3527
3528 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3529 {
3530 max_branch_offset = (1 << (17-1)) << 2;
3531 }
3532 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3533 {
3534 max_branch_offset = (1 << (12-1)) << 2;
3535 }
3536 else
3537 {
3538 max_branch_offset = (1 << (22-1)) << 2;
3539 }
3540
3541 /* sym_sec is NULL on undefined weak syms or when shared on
3542 undefined syms. We've already checked for a stub for the
3543 shared undefined case. */
3544 if (sym_sec == NULL)
3545 break;
3546
3547 /* If the branch is out of reach, then redirect the
3548 call to the local stub for this function. */
3549 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3550 {
875c0872
DA
3551 hsh = hppa_get_stub_entry (input_section, sym_sec,
3552 hh, rela, htab);
3553 if (hsh == NULL)
f09ebc7d 3554 return bfd_reloc_undefined;
30667bf3
AM
3555
3556 /* Munge up the value and addend so that we call the stub
3557 rather than the procedure directly. */
875c0872
DA
3558 value = (hsh->stub_offset
3559 + hsh->stub_sec->output_offset
3560 + hsh->stub_sec->output_section->vma
30667bf3
AM
3561 - location);
3562 addend = -8;
3563 }
3564 break;
3565
3566 /* Something we don't know how to handle. */
3567 default:
3568 return bfd_reloc_notsupported;
3569 }
3570
3571 /* Make sure we can reach the stub. */
3572 if (max_branch_offset != 0
3573 && value + addend + max_branch_offset >= 2*max_branch_offset)
3574 {
3575 (*_bfd_error_handler)
d003868e
AM
3576 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3577 input_bfd,
3578 input_section,
875c0872 3579 offset,
a63e02c7 3580 hsh->bh_root.string);
ce757d15 3581 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3582 return bfd_reloc_notsupported;
3583 }
3584
3585 val = hppa_field_adjust (value, addend, r_field);
3586
3587 switch (r_type)
3588 {
3589 case R_PARISC_PCREL12F:
3590 case R_PARISC_PCREL17C:
3591 case R_PARISC_PCREL17F:
3592 case R_PARISC_PCREL17R:
3593 case R_PARISC_PCREL22F:
3594 case R_PARISC_DIR17F:
3595 case R_PARISC_DIR17R:
3596 /* This is a branch. Divide the offset by four.
3597 Note that we need to decide whether it's a branch or
3598 otherwise by inspecting the reloc. Inspecting insn won't
3599 work as insn might be from a .word directive. */
3600 val >>= 2;
3601 break;
3602
3603 default:
3604 break;
3605 }
3606
3607 insn = hppa_rebuild_insn (insn, val, r_format);
3608
3609 /* Update the instruction word. */
74d1c347 3610 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3611 return bfd_reloc_ok;
3612}
3613
30667bf3
AM
3614/* Relocate an HPPA ELF section. */
3615
b34976b6 3616static bfd_boolean
c39a58e6
AM
3617elf32_hppa_relocate_section (bfd *output_bfd,
3618 struct bfd_link_info *info,
3619 bfd *input_bfd,
3620 asection *input_section,
3621 bfd_byte *contents,
3622 Elf_Internal_Rela *relocs,
3623 Elf_Internal_Sym *local_syms,
3624 asection **local_sections)
30667bf3 3625{
30667bf3 3626 bfd_vma *local_got_offsets;
83c81bfe 3627 struct elf32_hppa_link_hash_table *htab;
30667bf3 3628 Elf_Internal_Shdr *symtab_hdr;
875c0872 3629 Elf_Internal_Rela *rela;
30667bf3 3630 Elf_Internal_Rela *relend;
30667bf3
AM
3631
3632 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3633
83c81bfe 3634 htab = hppa_link_hash_table (info);
74d1c347 3635 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3636
875c0872 3637 rela = relocs;
30667bf3 3638 relend = relocs + input_section->reloc_count;
875c0872 3639 for (; rela < relend; rela++)
30667bf3
AM
3640 {
3641 unsigned int r_type;
3642 reloc_howto_type *howto;
3643 unsigned int r_symndx;
875c0872 3644 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3645 Elf_Internal_Sym *sym;
3646 asection *sym_sec;
3647 bfd_vma relocation;
875c0872 3648 bfd_reloc_status_type rstatus;
30667bf3 3649 const char *sym_name;
b34976b6
AM
3650 bfd_boolean plabel;
3651 bfd_boolean warned_undef;
30667bf3 3652
875c0872 3653 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3654 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3655 {
3656 bfd_set_error (bfd_error_bad_value);
b34976b6 3657 return FALSE;
30667bf3
AM
3658 }
3659 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3660 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3661 continue;
3662
875c0872
DA
3663 r_symndx = ELF32_R_SYM (rela->r_info);
3664 hh = NULL;
30667bf3
AM
3665 sym = NULL;
3666 sym_sec = NULL;
b34976b6 3667 warned_undef = FALSE;
30667bf3
AM
3668 if (r_symndx < symtab_hdr->sh_info)
3669 {
3670 /* This is a local symbol, h defaults to NULL. */
3671 sym = local_syms + r_symndx;
3672 sym_sec = local_sections[r_symndx];
875c0872 3673 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3674 }
3675 else
3676 {
875c0872 3677 struct elf_link_hash_entry *eh;
560e09e9 3678 bfd_boolean unresolved_reloc;
b2a8e766 3679 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3680
875c0872 3681 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3682 r_symndx, symtab_hdr, sym_hashes,
875c0872 3683 eh, sym_sec, relocation,
b2a8e766 3684 unresolved_reloc, warned_undef);
560e09e9 3685
ab96bf03
AM
3686 if (!info->relocatable
3687 && relocation == 0
875c0872
DA
3688 && eh->root.type != bfd_link_hash_defined
3689 && eh->root.type != bfd_link_hash_defweak
3690 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3691 {
59c2e50f 3692 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3693 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3694 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3695 {
3696 if (! info->callbacks->undefined_symbol
9b52905e 3697 (info, eh_name (eh), input_bfd,
875c0872 3698 input_section, rela->r_offset, FALSE))
560e09e9
NC
3699 return FALSE;
3700 warned_undef = TRUE;
3701 }
30667bf3 3702 }
875c0872 3703 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3704 }
3705
ab96bf03
AM
3706 if (sym_sec != NULL && elf_discarded_section (sym_sec))
3707 {
3708 /* For relocs against symbols from removed linkonce
3709 sections, or sections discarded by a linker script,
3710 we just want the section contents zeroed. Avoid any
3711 special processing. */
3712 _bfd_clear_contents (elf_hppa_howto_table + r_type, input_bfd,
3713 contents + rela->r_offset);
3714 rela->r_info = 0;
3715 rela->r_addend = 0;
3716 continue;
3717 }
3718
3719 if (info->relocatable)
3720 continue;
3721
30667bf3 3722 /* Do any required modifications to the relocation value, and
25f72752
AM
3723 determine what types of dynamic info we need to output, if
3724 any. */
74d1c347 3725 plabel = 0;
30667bf3
AM
3726 switch (r_type)
3727 {
3728 case R_PARISC_DLTIND14F:
3729 case R_PARISC_DLTIND14R:
3730 case R_PARISC_DLTIND21L:
ce757d15
AM
3731 {
3732 bfd_vma off;
b34976b6 3733 bfd_boolean do_got = 0;
ce757d15
AM
3734
3735 /* Relocation is to the entry for this symbol in the
3736 global offset table. */
875c0872 3737 if (hh != NULL)
ce757d15 3738 {
b34976b6 3739 bfd_boolean dyn;
ce757d15 3740
a63e02c7
DA
3741 off = hh->eh.got.offset;
3742 dyn = htab->etab.dynamic_sections_created;
c152c796 3743 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3744 &hh->eh))
ce757d15
AM
3745 {
3746 /* If we aren't going to call finish_dynamic_symbol,
3747 then we need to handle initialisation of the .got
3748 entry and create needed relocs here. Since the
3749 offset must always be a multiple of 4, we use the
3750 least significant bit to record whether we have
3751 initialised it already. */
3752 if ((off & 1) != 0)
3753 off &= ~1;
3754 else
3755 {
a63e02c7 3756 hh->eh.got.offset |= 1;
ce757d15
AM
3757 do_got = 1;
3758 }
3759 }
3760 }
3761 else
3762 {
3763 /* Local symbol case. */
3764 if (local_got_offsets == NULL)
3765 abort ();
3766
3767 off = local_got_offsets[r_symndx];
3768
3769 /* The offset must always be a multiple of 4. We use
3770 the least significant bit to record whether we have
3771 already generated the necessary reloc. */
3772 if ((off & 1) != 0)
3773 off &= ~1;
3774 else
3775 {
3776 local_got_offsets[r_symndx] |= 1;
3777 do_got = 1;
3778 }
3779 }
68fb2e56 3780
ce757d15
AM
3781 if (do_got)
3782 {
3783 if (info->shared)
3784 {
3785 /* Output a dynamic relocation for this GOT entry.
3786 In this case it is relative to the base of the
3787 object because the symbol index is zero. */
3788 Elf_Internal_Rela outrel;
947216bf 3789 bfd_byte *loc;
875c0872 3790 asection *sec = htab->srelgot;
ce757d15
AM
3791
3792 outrel.r_offset = (off
3793 + htab->sgot->output_offset
3794 + htab->sgot->output_section->vma);
3795 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3796 outrel.r_addend = relocation;
875c0872
DA
3797 loc = sec->contents;
3798 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3799 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3800 }
3801 else
30667bf3 3802 bfd_put_32 (output_bfd, relocation,
83c81bfe 3803 htab->sgot->contents + off);
ce757d15 3804 }
30667bf3 3805
ce757d15
AM
3806 if (off >= (bfd_vma) -2)
3807 abort ();
30667bf3 3808
ce757d15
AM
3809 /* Add the base of the GOT to the relocation value. */
3810 relocation = (off
3811 + htab->sgot->output_offset
3812 + htab->sgot->output_section->vma);
3813 }
30667bf3 3814 break;
252b5132 3815
c46b7515
AM
3816 case R_PARISC_SEGREL32:
3817 /* If this is the first SEGREL relocation, then initialize
3818 the segment base values. */
83c81bfe
AM
3819 if (htab->text_segment_base == (bfd_vma) -1)
3820 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3821 break;
3822
30667bf3
AM
3823 case R_PARISC_PLABEL14R:
3824 case R_PARISC_PLABEL21L:
3825 case R_PARISC_PLABEL32:
a63e02c7 3826 if (htab->etab.dynamic_sections_created)
252b5132 3827 {
ce757d15 3828 bfd_vma off;
b34976b6 3829 bfd_boolean do_plt = 0;
74d1c347
AM
3830 /* If we have a global symbol with a PLT slot, then
3831 redirect this relocation to it. */
875c0872 3832 if (hh != NULL)
74d1c347 3833 {
a63e02c7 3834 off = hh->eh.plt.offset;
c152c796 3835 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3836 &hh->eh))
8dea1268
AM
3837 {
3838 /* In a non-shared link, adjust_dynamic_symbols
3839 isn't called for symbols forced local. We
dc810e39 3840 need to write out the plt entry here. */
8dea1268
AM
3841 if ((off & 1) != 0)
3842 off &= ~1;
3843 else
3844 {
a63e02c7 3845 hh->eh.plt.offset |= 1;
ce757d15 3846 do_plt = 1;
8dea1268
AM
3847 }
3848 }
74d1c347
AM
3849 }
3850 else
3851 {
68fb2e56
AM
3852 bfd_vma *local_plt_offsets;
3853
3854 if (local_got_offsets == NULL)
3855 abort ();
74d1c347 3856
68fb2e56
AM
3857 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3858 off = local_plt_offsets[r_symndx];
74d1c347
AM
3859
3860 /* As for the local .got entry case, we use the last
3861 bit to record whether we've already initialised
3862 this local .plt entry. */
3863 if ((off & 1) != 0)
3864 off &= ~1;
ce757d15
AM
3865 else
3866 {
3867 local_plt_offsets[r_symndx] |= 1;
3868 do_plt = 1;
3869 }
3870 }
3871
3872 if (do_plt)
3873 {
3874 if (info->shared)
3875 {
3876 /* Output a dynamic IPLT relocation for this
3877 PLT entry. */
3878 Elf_Internal_Rela outrel;
947216bf
AM
3879 bfd_byte *loc;
3880 asection *s = htab->srelplt;
ce757d15
AM
3881
3882 outrel.r_offset = (off
3883 + htab->splt->output_offset
3884 + htab->splt->output_section->vma);
3885 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3886 outrel.r_addend = relocation;
947216bf
AM
3887 loc = s->contents;
3888 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3889 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3890 }
74d1c347
AM
3891 else
3892 {
3893 bfd_put_32 (output_bfd,
3894 relocation,
83c81bfe 3895 htab->splt->contents + off);
74d1c347 3896 bfd_put_32 (output_bfd,
83c81bfe
AM
3897 elf_gp (htab->splt->output_section->owner),
3898 htab->splt->contents + off + 4);
74d1c347
AM
3899 }
3900 }
3901
68fb2e56 3902 if (off >= (bfd_vma) -2)
49e9d0d3 3903 abort ();
74d1c347
AM
3904
3905 /* PLABELs contain function pointers. Relocation is to
3906 the entry for the function in the .plt. The magic +2
3907 offset signals to $$dyncall that the function pointer
3908 is in the .plt and thus has a gp pointer too.
3909 Exception: Undefined PLABELs should have a value of
3910 zero. */
875c0872 3911 if (hh == NULL
a63e02c7
DA
3912 || (hh->eh.root.type != bfd_link_hash_undefweak
3913 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3914 {
3915 relocation = (off
83c81bfe
AM
3916 + htab->splt->output_offset
3917 + htab->splt->output_section->vma
74d1c347
AM
3918 + 2);
3919 }
3920 plabel = 1;
30667bf3
AM
3921 }
3922 /* Fall through and possibly emit a dynamic relocation. */
3923
3924 case R_PARISC_DIR17F:
3925 case R_PARISC_DIR17R:
47d89dba 3926 case R_PARISC_DIR14F:
30667bf3
AM
3927 case R_PARISC_DIR14R:
3928 case R_PARISC_DIR21L:
3929 case R_PARISC_DPREL14F:
3930 case R_PARISC_DPREL14R:
3931 case R_PARISC_DPREL21L:
3932 case R_PARISC_DIR32:
b1e24c02 3933 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3934 break;
3935
30667bf3 3936 /* The reloc types handled here and this conditional
56882138 3937 expression must match the code in ..check_relocs and
ec338859 3938 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3939 as in ..check_relocs, with some extra conditions (dynindx
3940 test in this case) to cater for relocs removed by
ec338859 3941 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3942 here does indeed match the one in ..check_relocs, the
3943 difference being that here we test DEF_DYNAMIC as well as
3944 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3945 which is why we can't use just that test here.
3946 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3947 there all files have not been loaded. */
446f2863 3948 if ((info->shared
875c0872 3949 && (hh == NULL
a63e02c7
DA
3950 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3951 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3952 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3953 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3954 || (!info->shared
875c0872 3955 && hh != NULL
a63e02c7
DA
3956 && hh->eh.dynindx != -1
3957 && !hh->eh.non_got_ref
4fc8051d 3958 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3959 && hh->eh.def_dynamic
3960 && !hh->eh.def_regular)
3961 || hh->eh.root.type == bfd_link_hash_undefweak
3962 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3963 {
3964 Elf_Internal_Rela outrel;
b34976b6 3965 bfd_boolean skip;
98ceb8ce 3966 asection *sreloc;
947216bf 3967 bfd_byte *loc;
252b5132 3968
30667bf3
AM
3969 /* When generating a shared object, these relocations
3970 are copied into the output file to be resolved at run
3971 time. */
252b5132 3972
875c0872 3973 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3974 outrel.r_offset =
3975 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3976 rela->r_offset);
0bb2d96a
JJ
3977 skip = (outrel.r_offset == (bfd_vma) -1
3978 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3979 outrel.r_offset += (input_section->output_offset
3980 + input_section->output_section->vma);
875c0872 3981
30667bf3 3982 if (skip)
252b5132 3983 {
30667bf3 3984 memset (&outrel, 0, sizeof (outrel));
252b5132 3985 }
875c0872 3986 else if (hh != NULL
a63e02c7 3987 && hh->eh.dynindx != -1
74d1c347 3988 && (plabel
446f2863
AM
3989 || !IS_ABSOLUTE_RELOC (r_type)
3990 || !info->shared
74d1c347 3991 || !info->symbolic
a63e02c7 3992 || !hh->eh.def_regular))
252b5132 3993 {
a63e02c7 3994 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
3995 }
3996 else /* It's a local symbol, or one marked to become local. */
3997 {
3998 int indx = 0;
edd21aca 3999
30667bf3
AM
4000 /* Add the absolute offset of the symbol. */
4001 outrel.r_addend += relocation;
edd21aca 4002
74d1c347
AM
4003 /* Global plabels need to be processed by the
4004 dynamic linker so that functions have at most one
4005 fptr. For this reason, we need to differentiate
4006 between global and local plabels, which we do by
4007 providing the function symbol for a global plabel
4008 reloc, and no symbol for local plabels. */
4009 if (! plabel
4010 && sym_sec != NULL
30667bf3
AM
4011 && sym_sec->output_section != NULL
4012 && ! bfd_is_abs_section (sym_sec))
252b5132 4013 {
74541ad4
AM
4014 asection *osec;
4015
4016 osec = sym_sec->output_section;
4017 indx = elf_section_data (osec)->dynindx;
4018 if (indx == 0)
4019 {
4020 osec = htab->etab.text_index_section;
4021 indx = elf_section_data (osec)->dynindx;
4022 }
4023 BFD_ASSERT (indx != 0);
4b71bec0 4024
30667bf3
AM
4025 /* We are turning this relocation into one
4026 against a section symbol, so subtract out the
4027 output section's address but not the offset
4028 of the input section in the output section. */
74541ad4 4029 outrel.r_addend -= osec->vma;
252b5132 4030 }
252b5132 4031
30667bf3
AM
4032 outrel.r_info = ELF32_R_INFO (indx, r_type);
4033 }
98ceb8ce
AM
4034 sreloc = elf_section_data (input_section)->sreloc;
4035 if (sreloc == NULL)
4036 abort ();
4037
947216bf
AM
4038 loc = sreloc->contents;
4039 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4040 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4041 }
4042 break;
9b52905e
NC
4043
4044 case R_PARISC_TLS_LDM21L:
4045 case R_PARISC_TLS_LDM14R:
4046 {
4047 bfd_vma off;
4048
4049 off = htab->tls_ldm_got.offset;
4050 if (off & 1)
4051 off &= ~1;
4052 else
4053 {
4054 Elf_Internal_Rela outrel;
4055 bfd_byte *loc;
4056
4057 outrel.r_offset = (off
4058 + htab->sgot->output_section->vma
4059 + htab->sgot->output_offset);
4060 outrel.r_addend = 0;
4061 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4062 loc = htab->srelgot->contents;
4063 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4064
4065 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4066 htab->tls_ldm_got.offset |= 1;
4067 }
4068
4069 /* Add the base of the GOT to the relocation value. */
4070 relocation = (off
4071 + htab->sgot->output_offset
4072 + htab->sgot->output_section->vma);
4073
4074 break;
4075 }
4076
4077 case R_PARISC_TLS_LDO21L:
4078 case R_PARISC_TLS_LDO14R:
4079 relocation -= dtpoff_base (info);
4080 break;
4081
4082 case R_PARISC_TLS_GD21L:
4083 case R_PARISC_TLS_GD14R:
4084 case R_PARISC_TLS_IE21L:
4085 case R_PARISC_TLS_IE14R:
4086 {
4087 bfd_vma off;
4088 int indx;
4089 char tls_type;
4090
4091 indx = 0;
4092 if (hh != NULL)
4093 {
4094 bfd_boolean dyn;
4095 dyn = htab->etab.dynamic_sections_created;
4096
4097 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4098 && (!info->shared
4099 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4100 {
4101 indx = hh->eh.dynindx;
4102 }
4103 off = hh->eh.got.offset;
4104 tls_type = hh->tls_type;
4105 }
4106 else
4107 {
4108 off = local_got_offsets[r_symndx];
4109 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4110 }
4111
4112 if (tls_type == GOT_UNKNOWN)
4113 abort ();
4114
4115 if ((off & 1) != 0)
4116 off &= ~1;
4117 else
4118 {
4119 bfd_boolean need_relocs = FALSE;
4120 Elf_Internal_Rela outrel;
4121 bfd_byte *loc = NULL;
4122 int cur_off = off;
4123
4124 /* The GOT entries have not been initialized yet. Do it
4125 now, and emit any relocations. If both an IE GOT and a
4126 GD GOT are necessary, we emit the GD first. */
4127
4128 if ((info->shared || indx != 0)
4129 && (hh == NULL
4130 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4131 || hh->eh.root.type != bfd_link_hash_undefweak))
4132 {
4133 need_relocs = TRUE;
4134 loc = htab->srelgot->contents;
4135 /* FIXME (CAO): Should this be reloc_count++ ? */
4136 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4137 }
4138
4139 if (tls_type & GOT_TLS_GD)
4140 {
4141 if (need_relocs)
4142 {
4143 outrel.r_offset = (cur_off
4144 + htab->sgot->output_section->vma
4145 + htab->sgot->output_offset);
4146 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4147 outrel.r_addend = 0;
4148 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4149 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4150 htab->srelgot->reloc_count++;
4151 loc += sizeof (Elf32_External_Rela);
4152
4153 if (indx == 0)
4154 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4155 htab->sgot->contents + cur_off + 4);
4156 else
4157 {
4158 bfd_put_32 (output_bfd, 0,
4159 htab->sgot->contents + cur_off + 4);
4160 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4161 outrel.r_offset += 4;
4162 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4163 htab->srelgot->reloc_count++;
4164 loc += sizeof (Elf32_External_Rela);
4165 }
4166 }
4167 else
4168 {
4169 /* If we are not emitting relocations for a
4170 general dynamic reference, then we must be in a
4171 static link or an executable link with the
4172 symbol binding locally. Mark it as belonging
4173 to module 1, the executable. */
4174 bfd_put_32 (output_bfd, 1,
4175 htab->sgot->contents + cur_off);
4176 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4177 htab->sgot->contents + cur_off + 4);
4178 }
4179
4180
4181 cur_off += 8;
4182 }
4183
4184 if (tls_type & GOT_TLS_IE)
4185 {
4186 if (need_relocs)
4187 {
4188 outrel.r_offset = (cur_off
4189 + htab->sgot->output_section->vma
4190 + htab->sgot->output_offset);
4191 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4192
4193 if (indx == 0)
4194 outrel.r_addend = relocation - dtpoff_base (info);
4195 else
4196 outrel.r_addend = 0;
4197
4198 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4199 htab->srelgot->reloc_count++;
4200 loc += sizeof (Elf32_External_Rela);
4201 }
4202 else
4203 bfd_put_32 (output_bfd, tpoff (info, relocation),
4204 htab->sgot->contents + cur_off);
4205
4206 cur_off += 4;
4207 }
4208
4209 if (hh != NULL)
4210 hh->eh.got.offset |= 1;
4211 else
4212 local_got_offsets[r_symndx] |= 1;
4213 }
4214
4215 if ((tls_type & GOT_TLS_GD)
4216 && r_type != R_PARISC_TLS_GD21L
4217 && r_type != R_PARISC_TLS_GD14R)
4218 off += 2 * GOT_ENTRY_SIZE;
4219
4220 /* Add the base of the GOT to the relocation value. */
4221 relocation = (off
4222 + htab->sgot->output_offset
4223 + htab->sgot->output_section->vma);
4224
4225 break;
4226 }
4227
4228 case R_PARISC_TLS_LE21L:
4229 case R_PARISC_TLS_LE14R:
4230 {
4231 relocation = tpoff (info, relocation);
4232 break;
4233 }
4234 break;
edd21aca 4235
30667bf3
AM
4236 default:
4237 break;
4238 }
252b5132 4239
875c0872
DA
4240 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4241 htab, sym_sec, hh, info);
252b5132 4242
875c0872 4243 if (rstatus == bfd_reloc_ok)
30667bf3 4244 continue;
252b5132 4245
875c0872 4246 if (hh != NULL)
9b52905e 4247 sym_name = hh_name (hh);
30667bf3
AM
4248 else
4249 {
4250 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4251 symtab_hdr->sh_link,
4252 sym->st_name);
4253 if (sym_name == NULL)
b34976b6 4254 return FALSE;
30667bf3
AM
4255 if (*sym_name == '\0')
4256 sym_name = bfd_section_name (input_bfd, sym_sec);
4257 }
edd21aca 4258
30667bf3 4259 howto = elf_hppa_howto_table + r_type;
252b5132 4260
875c0872 4261 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4262 {
875c0872 4263 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4264 {
4265 (*_bfd_error_handler)
d003868e
AM
4266 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4267 input_bfd,
4268 input_section,
875c0872 4269 (long) rela->r_offset,
f09ebc7d
AM
4270 howto->name,
4271 sym_name);
4272 bfd_set_error (bfd_error_bad_value);
b34976b6 4273 return FALSE;
f09ebc7d 4274 }
30667bf3
AM
4275 }
4276 else
4277 {
4278 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4279 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4280 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4281 return FALSE;
30667bf3
AM
4282 }
4283 }
edd21aca 4284
b34976b6 4285 return TRUE;
30667bf3 4286}
252b5132 4287
30667bf3
AM
4288/* Finish up dynamic symbol handling. We set the contents of various
4289 dynamic sections here. */
252b5132 4290
b34976b6 4291static bfd_boolean
c39a58e6
AM
4292elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4293 struct bfd_link_info *info,
875c0872 4294 struct elf_link_hash_entry *eh,
c39a58e6 4295 Elf_Internal_Sym *sym)
30667bf3 4296{
83c81bfe 4297 struct elf32_hppa_link_hash_table *htab;
875c0872 4298 Elf_Internal_Rela rela;
a252afa4 4299 bfd_byte *loc;
edd21aca 4300
83c81bfe 4301 htab = hppa_link_hash_table (info);
30667bf3 4302
875c0872 4303 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4304 {
4305 bfd_vma value;
30667bf3 4306
875c0872 4307 if (eh->plt.offset & 1)
8dea1268
AM
4308 abort ();
4309
30667bf3
AM
4310 /* This symbol has an entry in the procedure linkage table. Set
4311 it up.
4312
4313 The format of a plt entry is
74d1c347
AM
4314 <funcaddr>
4315 <__gp>
47d89dba 4316 */
30667bf3 4317 value = 0;
875c0872
DA
4318 if (eh->root.type == bfd_link_hash_defined
4319 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4320 {
875c0872
DA
4321 value = eh->root.u.def.value;
4322 if (eh->root.u.def.section->output_section != NULL)
4323 value += (eh->root.u.def.section->output_offset
4324 + eh->root.u.def.section->output_section->vma);
252b5132 4325 }
edd21aca 4326
a252afa4 4327 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4328 rela.r_offset = (eh->plt.offset
a252afa4
DA
4329 + htab->splt->output_offset
4330 + htab->splt->output_section->vma);
875c0872 4331 if (eh->dynindx != -1)
30667bf3 4332 {
875c0872
DA
4333 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4334 rela.r_addend = 0;
30667bf3 4335 }
ce757d15 4336 else
47d89dba 4337 {
a252afa4
DA
4338 /* This symbol has been marked to become local, and is
4339 used by a plabel so must be kept in the .plt. */
875c0872
DA
4340 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4341 rela.r_addend = value;
47d89dba
AM
4342 }
4343
a252afa4
DA
4344 loc = htab->srelplt->contents;
4345 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4346 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4347
875c0872 4348 if (!eh->def_regular)
30667bf3
AM
4349 {
4350 /* Mark the symbol as undefined, rather than as defined in
4351 the .plt section. Leave the value alone. */
4352 sym->st_shndx = SHN_UNDEF;
4353 }
4354 }
edd21aca 4355
9b52905e
NC
4356 if (eh->got.offset != (bfd_vma) -1
4357 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4358 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4359 {
30667bf3
AM
4360 /* This symbol has an entry in the global offset table. Set it
4361 up. */
4362
875c0872 4363 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4364 + htab->sgot->output_offset
4365 + htab->sgot->output_section->vma);
30667bf3 4366
4dc86686
AM
4367 /* If this is a -Bsymbolic link and the symbol is defined
4368 locally or was forced to be local because of a version file,
4369 we just want to emit a RELATIVE reloc. The entry in the
4370 global offset table will already have been initialized in the
4371 relocate_section function. */
4372 if (info->shared
875c0872
DA
4373 && (info->symbolic || eh->dynindx == -1)
4374 && eh->def_regular)
30667bf3 4375 {
875c0872
DA
4376 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4377 rela.r_addend = (eh->root.u.def.value
4378 + eh->root.u.def.section->output_offset
4379 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4380 }
4381 else
4382 {
875c0872 4383 if ((eh->got.offset & 1) != 0)
49e9d0d3 4384 abort ();
875c0872
DA
4385
4386 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4387 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4388 rela.r_addend = 0;
30667bf3 4389 }
edd21aca 4390
947216bf
AM
4391 loc = htab->srelgot->contents;
4392 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4393 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4394 }
edd21aca 4395
875c0872 4396 if (eh->needs_copy)
30667bf3 4397 {
875c0872 4398 asection *sec;
30667bf3
AM
4399
4400 /* This symbol needs a copy reloc. Set it up. */
4401
875c0872
DA
4402 if (! (eh->dynindx != -1
4403 && (eh->root.type == bfd_link_hash_defined
4404 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4405 abort ();
30667bf3 4406
875c0872 4407 sec = htab->srelbss;
30667bf3 4408
875c0872
DA
4409 rela.r_offset = (eh->root.u.def.value
4410 + eh->root.u.def.section->output_offset
4411 + eh->root.u.def.section->output_section->vma);
4412 rela.r_addend = 0;
4413 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4414 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4415 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4416 }
4417
4418 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9b52905e
NC
4419 if (eh_name (eh)[0] == '_'
4420 && (strcmp (eh_name (eh), "_DYNAMIC") == 0
22edb2f1 4421 || eh == htab->etab.hgot))
30667bf3
AM
4422 {
4423 sym->st_shndx = SHN_ABS;
4424 }
4425
b34976b6 4426 return TRUE;
30667bf3
AM
4427}
4428
98ceb8ce
AM
4429/* Used to decide how to sort relocs in an optimal manner for the
4430 dynamic linker, before writing them out. */
4431
4432static enum elf_reloc_type_class
c39a58e6 4433elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
98ceb8ce 4434{
9b52905e
NC
4435 /* Handle TLS relocs first; we don't want them to be marked
4436 relative by the "if (ELF32_R_SYM (rela->r_info) == 0)"
4437 check below. */
4438 switch ((int) ELF32_R_TYPE (rela->r_info))
4439 {
4440 case R_PARISC_TLS_DTPMOD32:
4441 case R_PARISC_TLS_DTPOFF32:
4442 case R_PARISC_TLS_TPREL32:
4443 return reloc_class_normal;
4444 }
4445
98ceb8ce
AM
4446 if (ELF32_R_SYM (rela->r_info) == 0)
4447 return reloc_class_relative;
4448
4449 switch ((int) ELF32_R_TYPE (rela->r_info))
4450 {
4451 case R_PARISC_IPLT:
4452 return reloc_class_plt;
4453 case R_PARISC_COPY:
4454 return reloc_class_copy;
4455 default:
4456 return reloc_class_normal;
4457 }
4458}
4459
30667bf3
AM
4460/* Finish up the dynamic sections. */
4461
b34976b6 4462static bfd_boolean
c39a58e6
AM
4463elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4464 struct bfd_link_info *info)
30667bf3
AM
4465{
4466 bfd *dynobj;
83c81bfe 4467 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
4468 asection *sdyn;
4469
83c81bfe 4470 htab = hppa_link_hash_table (info);
a63e02c7 4471 dynobj = htab->etab.dynobj;
30667bf3
AM
4472
4473 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4474
a63e02c7 4475 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4476 {
4477 Elf32_External_Dyn *dyncon, *dynconend;
4478
49e9d0d3
AM
4479 if (sdyn == NULL)
4480 abort ();
30667bf3
AM
4481
4482 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4483 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4484 for (; dyncon < dynconend; dyncon++)
edd21aca 4485 {
30667bf3
AM
4486 Elf_Internal_Dyn dyn;
4487 asection *s;
4488
4489 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4490
4491 switch (dyn.d_tag)
4492 {
4493 default:
3ac8354b 4494 continue;
30667bf3
AM
4495
4496 case DT_PLTGOT:
4497 /* Use PLTGOT to set the GOT register. */
4498 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4499 break;
4500
4501 case DT_JMPREL:
83c81bfe 4502 s = htab->srelplt;
30667bf3 4503 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4504 break;
4505
4506 case DT_PLTRELSZ:
83c81bfe 4507 s = htab->srelplt;
eea6121a 4508 dyn.d_un.d_val = s->size;
30667bf3 4509 break;
4e12ff7f
AM
4510
4511 case DT_RELASZ:
4512 /* Don't count procedure linkage table relocs in the
4513 overall reloc count. */
6348e046
AM
4514 s = htab->srelplt;
4515 if (s == NULL)
4516 continue;
eea6121a 4517 dyn.d_un.d_val -= s->size;
6348e046
AM
4518 break;
4519
4520 case DT_RELA:
4521 /* We may not be using the standard ELF linker script.
4522 If .rela.plt is the first .rela section, we adjust
4523 DT_RELA to not include it. */
4524 s = htab->srelplt;
4525 if (s == NULL)
4526 continue;
4527 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4528 continue;
eea6121a 4529 dyn.d_un.d_ptr += s->size;
4e12ff7f 4530 break;
30667bf3 4531 }
3ac8354b
AM
4532
4533 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4534 }
252b5132 4535 }
edd21aca 4536
eea6121a 4537 if (htab->sgot != NULL && htab->sgot->size != 0)
30667bf3 4538 {
74d1c347
AM
4539 /* Fill in the first entry in the global offset table.
4540 We use it to point to our dynamic section, if we have one. */
30667bf3 4541 bfd_put_32 (output_bfd,
c39a58e6 4542 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
83c81bfe 4543 htab->sgot->contents);
30667bf3 4544
74d1c347 4545 /* The second entry is reserved for use by the dynamic linker. */
83c81bfe 4546 memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4547
30667bf3 4548 /* Set .got entry size. */
83c81bfe 4549 elf_section_data (htab->sgot->output_section)
74d1c347 4550 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4551 }
4552
eea6121a 4553 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4554 {
4555 /* Set plt entry size. */
83c81bfe 4556 elf_section_data (htab->splt->output_section)
47d89dba
AM
4557 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4558
83c81bfe 4559 if (htab->need_plt_stub)
47d89dba
AM
4560 {
4561 /* Set up the .plt stub. */
83c81bfe 4562 memcpy (htab->splt->contents
eea6121a 4563 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4564 plt_stub, sizeof (plt_stub));
4565
83c81bfe
AM
4566 if ((htab->splt->output_offset
4567 + htab->splt->output_section->vma
eea6121a 4568 + htab->splt->size)
83c81bfe
AM
4569 != (htab->sgot->output_offset
4570 + htab->sgot->output_section->vma))
47d89dba
AM
4571 {
4572 (*_bfd_error_handler)
4573 (_(".got section not immediately after .plt section"));
b34976b6 4574 return FALSE;
47d89dba
AM
4575 }
4576 }
4577 }
30667bf3 4578
b34976b6 4579 return TRUE;
30667bf3 4580}
252b5132 4581
30667bf3
AM
4582/* Called when writing out an object file to decide the type of a
4583 symbol. */
4584static int
c39a58e6 4585elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4586{
4587 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4588 return STT_PARISC_MILLI;
4589 else
4590 return type;
252b5132
RH
4591}
4592
4593/* Misc BFD support code. */
30667bf3
AM
4594#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4595#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
157090f7 4596#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4597#define elf_info_to_howto elf_hppa_info_to_howto
4598#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4599
252b5132 4600/* Stuff for the BFD linker. */
c46b7515 4601#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4602#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4603#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4604#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4605#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4606#define elf_backend_check_relocs elf32_hppa_check_relocs
4607#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4608#define elf_backend_fake_sections elf_hppa_fake_sections
4609#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4610#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4611#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4612#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4613#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4614#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4615#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4616#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4617#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4618#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4619#define elf_backend_object_p elf32_hppa_object_p
4620#define elf_backend_final_write_processing elf_hppa_final_write_processing
d1036acb 4621#define elf_backend_post_process_headers _bfd_elf_set_osabi
30667bf3 4622#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4623#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4624#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4625
4626#define elf_backend_can_gc_sections 1
51b64d56 4627#define elf_backend_can_refcount 1
30667bf3
AM
4628#define elf_backend_plt_alignment 2
4629#define elf_backend_want_got_plt 0
4630#define elf_backend_plt_readonly 0
4631#define elf_backend_want_plt_sym 0
74d1c347 4632#define elf_backend_got_header_size 8
f0fe0e16 4633#define elf_backend_rela_normal 1
252b5132
RH
4634
4635#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4636#define TARGET_BIG_NAME "elf32-hppa"
4637#define ELF_ARCH bfd_arch_hppa
4638#define ELF_MACHINE_CODE EM_PARISC
4639#define ELF_MAXPAGESIZE 0x1000
d1036acb 4640#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4641#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4642
4643#include "elf32-target.h"
d952f17a
AM
4644
4645#undef TARGET_BIG_SYM
914dfb0f 4646#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
d952f17a 4647#undef TARGET_BIG_NAME
914dfb0f 4648#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb
L
4649#undef ELF_OSABI
4650#define ELF_OSABI ELFOSABI_LINUX
914dfb0f
DA
4651#undef elf32_bed
4652#define elf32_bed elf32_hppa_linux_bed
d952f17a 4653
d952f17a 4654#include "elf32-target.h"
225247f0
JT
4655
4656#undef TARGET_BIG_SYM
914dfb0f 4657#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
225247f0 4658#undef TARGET_BIG_NAME
914dfb0f 4659#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4660#undef ELF_OSABI
4661#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4662#undef elf32_bed
4663#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4664
4665#include "elf32-target.h"
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