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252b5132 1/* BFD back-end for HP PA-RISC ELF files.
2571583a 2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
252b5132 3
30667bf3 4 Original code by
252b5132
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5 Center for Software Science
6 Department of Computer Science
7 University of Utah
30667bf3 8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
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9 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
10 TLS support written by Randolph Chung <tausq@debian.org>
68ffbac6 11
ae9a127f 12 This file is part of BFD, the Binary File Descriptor library.
252b5132 13
ae9a127f
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14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
cd123cb7 16 the Free Software Foundation; either version 3 of the License, or
ae9a127f 17 (at your option) any later version.
252b5132 18
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19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
252b5132 23
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24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
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26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
252b5132 28
252b5132 29#include "sysdep.h"
3db64b00 30#include "bfd.h"
252b5132
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31#include "libbfd.h"
32#include "elf-bfd.h"
9e103c9c
JL
33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
RH
52
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
56
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
30667bf3
AM
59 necessary to build the linker stubs during a link.
60
61 There are a number of different stubs generated by the linker.
62
63 Long branch stub:
64 : ldil LR'X,%r1
65 : be,n RR'X(%sr4,%r1)
66
67 PIC long branch stub:
68 : b,l .+8,%r1
3ee1d854
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69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
30667bf3
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71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
3ee1d854
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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
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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.
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
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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
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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)
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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
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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
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118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
68ffbac6 125
875c0872
DA
126 elf32_hppa_link_hash_table "htab"
127 elf32_hppa_link_hash_entry "hh"
128
129 bfd_hash_table "btab"
130 bfd_hash_entry "bh"
68ffbac6 131
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132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
134
135 elf32_hppa_dyn_reloc_entry "hdh"
68ffbac6 136
875c0872 137 Always remember to use GNU Coding Style. */
68ffbac6 138
30667bf3
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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
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143static const bfd_byte plt_stub[] =
144{
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148#define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153};
154
30667bf3 155/* Section name for stubs is the associated section name plus this
29942be8
NC
156 string. */
157#define STUB_SUFFIX ".stub"
30667bf3 158
98ceb8ce
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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
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165#endif
166
4fc8051d
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167/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 copying dynamic variables from a shared lib into an app's dynbss
169 section, and instead use a dynamic relocation to point into the
170 shared lib. */
171#define ELIMINATE_COPY_RELOCS 1
172
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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;
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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
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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. */
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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;
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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
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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
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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
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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
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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;
7292b3ac 273 unsigned int top_index;
b4655ea9
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274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
c46b7515
AM
277 /* Used during a final link to store the base of the text and data
278 segments so that we can perform SEGREL relocations. */
279 bfd_vma text_segment_base;
280 bfd_vma data_segment_base;
281
47d89dba
AM
282 /* Whether we support multiple sub-spaces for shared libs. */
283 unsigned int multi_subspace:1;
284
067fa4a6 285 /* Flags set when various size branches are detected. Used to
47d89dba
AM
286 select suitable defaults for the stub group size. */
287 unsigned int has_12bit_branch:1;
288 unsigned int has_17bit_branch:1;
067fa4a6 289 unsigned int has_22bit_branch:1;
47d89dba
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290
291 /* Set if we need a .plt stub to support lazy dynamic linking. */
292 unsigned int need_plt_stub:1;
ec338859 293
87d72d41
AM
294 /* Small local sym cache. */
295 struct sym_cache sym_cache;
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NC
296
297 /* Data for LDM relocations. */
298 union
299 {
300 bfd_signed_vma refcount;
301 bfd_vma offset;
302 } tls_ldm_got;
252b5132
RH
303};
304
30667bf3
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305/* Various hash macros and functions. */
306#define hppa_link_hash_table(p) \
4dfe6ac6
NC
307 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
308 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 309
875c0872
DA
310#define hppa_elf_hash_entry(ent) \
311 ((struct elf32_hppa_link_hash_entry *)(ent))
312
313#define hppa_stub_hash_entry(ent) \
314 ((struct elf32_hppa_stub_hash_entry *)(ent))
315
30667bf3
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316#define hppa_stub_hash_lookup(table, string, create, copy) \
317 ((struct elf32_hppa_stub_hash_entry *) \
318 bfd_hash_lookup ((table), (string), (create), (copy)))
319
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NC
320#define hppa_elf_local_got_tls_type(abfd) \
321 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
322
323#define hh_name(hh) \
324 (hh ? hh->eh.root.root.string : "<undef>")
325
326#define eh_name(eh) \
327 (eh ? eh->root.root.string : "<undef>")
328
252b5132
RH
329/* Assorted hash table functions. */
330
331/* Initialize an entry in the stub hash table. */
332
333static struct bfd_hash_entry *
c39a58e6
AM
334stub_hash_newfunc (struct bfd_hash_entry *entry,
335 struct bfd_hash_table *table,
336 const char *string)
252b5132 337{
252b5132
RH
338 /* Allocate the structure if it has not already been allocated by a
339 subclass. */
ebe50bae 340 if (entry == NULL)
30667bf3 341 {
ebe50bae
AM
342 entry = bfd_hash_allocate (table,
343 sizeof (struct elf32_hppa_stub_hash_entry));
344 if (entry == NULL)
345 return entry;
30667bf3 346 }
252b5132
RH
347
348 /* Call the allocation method of the superclass. */
ebe50bae
AM
349 entry = bfd_hash_newfunc (entry, table, string);
350 if (entry != NULL)
252b5132 351 {
875c0872 352 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 353
252b5132 354 /* Initialize the local fields. */
875c0872
DA
355 hsh = hppa_stub_hash_entry (entry);
356 hsh->stub_sec = NULL;
357 hsh->stub_offset = 0;
358 hsh->target_value = 0;
359 hsh->target_section = NULL;
360 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 361 hsh->hh = NULL;
875c0872 362 hsh->id_sec = NULL;
30667bf3
AM
363 }
364
ebe50bae 365 return entry;
30667bf3
AM
366}
367
30667bf3
AM
368/* Initialize an entry in the link hash table. */
369
370static struct bfd_hash_entry *
c39a58e6
AM
371hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
372 struct bfd_hash_table *table,
373 const char *string)
30667bf3 374{
30667bf3
AM
375 /* Allocate the structure if it has not already been allocated by a
376 subclass. */
ebe50bae 377 if (entry == NULL)
30667bf3 378 {
ebe50bae
AM
379 entry = bfd_hash_allocate (table,
380 sizeof (struct elf32_hppa_link_hash_entry));
381 if (entry == NULL)
382 return entry;
30667bf3
AM
383 }
384
385 /* Call the allocation method of the superclass. */
ebe50bae
AM
386 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
387 if (entry != NULL)
30667bf3 388 {
875c0872 389 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 390
30667bf3 391 /* Initialize the local fields. */
875c0872 392 hh = hppa_elf_hash_entry (entry);
a63e02c7 393 hh->hsh_cache = NULL;
875c0872
DA
394 hh->dyn_relocs = NULL;
395 hh->plabel = 0;
9b52905e 396 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
397 }
398
ebe50bae 399 return entry;
252b5132
RH
400}
401
68faa637
AM
402/* Free the derived linker hash table. */
403
404static void
d495ab0d 405elf32_hppa_link_hash_table_free (bfd *obfd)
68faa637
AM
406{
407 struct elf32_hppa_link_hash_table *htab
d495ab0d 408 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
68faa637
AM
409
410 bfd_hash_table_free (&htab->bstab);
d495ab0d 411 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM
412}
413
252b5132
RH
414/* Create the derived linker hash table. The PA ELF port uses the derived
415 hash table to keep information specific to the PA ELF linker (without
416 using static variables). */
417
418static struct bfd_link_hash_table *
c39a58e6 419elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 420{
875c0872
DA
421 struct elf32_hppa_link_hash_table *htab;
422 bfd_size_type amt = sizeof (*htab);
252b5132 423
7bf52ea2 424 htab = bfd_zmalloc (amt);
875c0872 425 if (htab == NULL)
252b5132 426 return NULL;
edd21aca 427
66eb6687 428 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
429 sizeof (struct elf32_hppa_link_hash_entry),
430 HPPA32_ELF_DATA))
252b5132 431 {
875c0872 432 free (htab);
252b5132
RH
433 return NULL;
434 }
edd21aca
AM
435
436 /* Init the stub hash table too. */
66eb6687
AM
437 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
438 sizeof (struct elf32_hppa_stub_hash_entry)))
d495ab0d
AM
439 {
440 _bfd_elf_link_hash_table_free (abfd);
441 return NULL;
442 }
443 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
edd21aca 444
875c0872
DA
445 htab->text_segment_base = (bfd_vma) -1;
446 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 447 return &htab->etab.root;
252b5132
RH
448}
449
a464198b
AM
450/* Initialize the linker stubs BFD so that we can use it for linker
451 created dynamic sections. */
452
453void
454elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
455{
456 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
457
458 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
459 htab->etab.dynobj = abfd;
460}
461
30667bf3
AM
462/* Build a name for an entry in the stub hash table. */
463
edd21aca 464static char *
c39a58e6
AM
465hppa_stub_name (const asection *input_section,
466 const asection *sym_sec,
875c0872
DA
467 const struct elf32_hppa_link_hash_entry *hh,
468 const Elf_Internal_Rela *rela)
edd21aca
AM
469{
470 char *stub_name;
dc810e39 471 bfd_size_type len;
edd21aca 472
875c0872 473 if (hh)
30667bf3 474 {
9b52905e 475 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
476 stub_name = bfd_malloc (len);
477 if (stub_name != NULL)
9b52905e
NC
478 sprintf (stub_name, "%08x_%s+%x",
479 input_section->id & 0xffffffff,
480 hh_name (hh),
481 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
482 }
483 else
edd21aca 484 {
30667bf3
AM
485 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
486 stub_name = bfd_malloc (len);
487 if (stub_name != NULL)
9b52905e
NC
488 sprintf (stub_name, "%08x_%x:%x+%x",
489 input_section->id & 0xffffffff,
490 sym_sec->id & 0xffffffff,
491 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
492 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
493 }
494 return stub_name;
495}
252b5132 496
30667bf3
AM
497/* Look up an entry in the stub hash. Stub entries are cached because
498 creating the stub name takes a bit of time. */
499
500static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
501hppa_get_stub_entry (const asection *input_section,
502 const asection *sym_sec,
875c0872
DA
503 struct elf32_hppa_link_hash_entry *hh,
504 const Elf_Internal_Rela *rela,
c39a58e6 505 struct elf32_hppa_link_hash_table *htab)
252b5132 506{
a63e02c7 507 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
508 const asection *id_sec;
509
510 /* If this input section is part of a group of sections sharing one
511 stub section, then use the id of the first section in the group.
512 Stub names need to include a section id, as there may well be
513 more than one stub used to reach say, printf, and we need to
514 distinguish between them. */
83c81bfe 515 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 516
a63e02c7
DA
517 if (hh != NULL && hh->hsh_cache != NULL
518 && hh->hsh_cache->hh == hh
519 && hh->hsh_cache->id_sec == id_sec)
edd21aca 520 {
a63e02c7 521 hsh_entry = hh->hsh_cache;
30667bf3
AM
522 }
523 else
524 {
30667bf3 525 char *stub_name;
edd21aca 526
875c0872 527 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
528 if (stub_name == NULL)
529 return NULL;
edd21aca 530
a63e02c7 531 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 532 stub_name, FALSE, FALSE);
875c0872 533 if (hh != NULL)
a63e02c7 534 hh->hsh_cache = hsh_entry;
30667bf3
AM
535
536 free (stub_name);
edd21aca 537 }
30667bf3 538
a63e02c7 539 return hsh_entry;
30667bf3
AM
540}
541
30667bf3
AM
542/* Add a new stub entry to the stub hash. Not all fields of the new
543 stub entry are initialised. */
544
545static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
546hppa_add_stub (const char *stub_name,
547 asection *section,
548 struct elf32_hppa_link_hash_table *htab)
30667bf3 549{
25f72752 550 asection *link_sec;
30667bf3 551 asection *stub_sec;
875c0872 552 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 553
83c81bfe
AM
554 link_sec = htab->stub_group[section->id].link_sec;
555 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 556 if (stub_sec == NULL)
edd21aca 557 {
83c81bfe 558 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
559 if (stub_sec == NULL)
560 {
d4c88bbb 561 size_t namelen;
dc810e39 562 bfd_size_type len;
30667bf3
AM
563 char *s_name;
564
d4c88bbb
AM
565 namelen = strlen (link_sec->name);
566 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 567 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
568 if (s_name == NULL)
569 return NULL;
570
d4c88bbb
AM
571 memcpy (s_name, link_sec->name, namelen);
572 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 573 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
574 if (stub_sec == NULL)
575 return NULL;
83c81bfe 576 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 577 }
83c81bfe 578 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 579 }
252b5132 580
30667bf3 581 /* Enter this entry into the linker stub hash table. */
a63e02c7 582 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 583 TRUE, FALSE);
875c0872 584 if (hsh == NULL)
30667bf3 585 {
695344c0 586 /* xgettext:c-format */
4eca0228
AM
587 _bfd_error_handler (_("%B: cannot create stub entry %s"),
588 section->owner, stub_name);
30667bf3 589 return NULL;
edd21aca
AM
590 }
591
875c0872
DA
592 hsh->stub_sec = stub_sec;
593 hsh->stub_offset = 0;
594 hsh->id_sec = link_sec;
595 return hsh;
edd21aca
AM
596}
597
30667bf3
AM
598/* Determine the type of stub needed, if any, for a call. */
599
600static enum elf32_hppa_stub_type
c39a58e6 601hppa_type_of_stub (asection *input_sec,
875c0872
DA
602 const Elf_Internal_Rela *rela,
603 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
604 bfd_vma destination,
605 struct bfd_link_info *info)
edd21aca 606{
edd21aca 607 bfd_vma location;
30667bf3
AM
608 bfd_vma branch_offset;
609 bfd_vma max_branch_offset;
610 unsigned int r_type;
611
875c0872 612 if (hh != NULL
a63e02c7
DA
613 && hh->eh.plt.offset != (bfd_vma) -1
614 && hh->eh.dynindx != -1
875c0872 615 && !hh->plabel
0e1862bb 616 && (bfd_link_pic (info)
a63e02c7
DA
617 || !hh->eh.def_regular
618 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 619 {
067fa4a6
AM
620 /* We need an import stub. Decide between hppa_stub_import
621 and hppa_stub_import_shared later. */
30667bf3
AM
622 return hppa_stub_import;
623 }
edd21aca 624
30667bf3
AM
625 /* Determine where the call point is. */
626 location = (input_sec->output_offset
627 + input_sec->output_section->vma
875c0872 628 + rela->r_offset);
edd21aca 629
30667bf3 630 branch_offset = destination - location - 8;
875c0872 631 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 632
30667bf3
AM
633 /* Determine if a long branch stub is needed. parisc branch offsets
634 are relative to the second instruction past the branch, ie. +8
635 bytes on from the branch instruction location. The offset is
636 signed and counts in units of 4 bytes. */
637 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
638 max_branch_offset = (1 << (17 - 1)) << 2;
639
30667bf3 640 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
641 max_branch_offset = (1 << (12 - 1)) << 2;
642
25f72752 643 else /* R_PARISC_PCREL22F. */
9b52905e 644 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 645
30667bf3 646 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
647 return hppa_stub_long_branch;
648
30667bf3
AM
649 return hppa_stub_none;
650}
edd21aca 651
30667bf3
AM
652/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
653 IN_ARG contains the link info pointer. */
edd21aca 654
30667bf3
AM
655#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
656#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 657
30667bf3 658#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 659#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 660#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 661
3ee1d854
AM
662#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
663#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 664#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 665#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 666
3ee1d854
AM
667#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
668#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 669
30667bf3
AM
670#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
671#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
672#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
673#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 674
067fa4a6 675#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
676#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
677#define NOP 0x08000240 /* nop */
678#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
679#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
680#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 681
30667bf3
AM
682#ifndef R19_STUBS
683#define R19_STUBS 1
684#endif
edd21aca 685
30667bf3
AM
686#if R19_STUBS
687#define LDW_R1_DLT LDW_R1_R19
688#else
689#define LDW_R1_DLT LDW_R1_DP
690#endif
edd21aca 691
b34976b6 692static bfd_boolean
875c0872 693hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 694{
875c0872 695 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 696 struct bfd_link_info *info;
83c81bfe 697 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
698 asection *stub_sec;
699 bfd *stub_bfd;
700 bfd_byte *loc;
701 bfd_vma sym_value;
74d1c347 702 bfd_vma insn;
8dea1268 703 bfd_vma off;
74d1c347 704 int val;
30667bf3 705 int size;
edd21aca 706
30667bf3 707 /* Massage our args to the form they really have. */
875c0872
DA
708 hsh = hppa_stub_hash_entry (bh);
709 info = (struct bfd_link_info *)in_arg;
30667bf3 710
83c81bfe 711 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
712 if (htab == NULL)
713 return FALSE;
714
875c0872 715 stub_sec = hsh->stub_sec;
edd21aca 716
30667bf3 717 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
718 hsh->stub_offset = stub_sec->size;
719 loc = stub_sec->contents + hsh->stub_offset;
252b5132 720
30667bf3
AM
721 stub_bfd = stub_sec->owner;
722
875c0872 723 switch (hsh->stub_type)
30667bf3
AM
724 {
725 case hppa_stub_long_branch:
726 /* Create the long branch. A long branch is formed with "ldil"
727 loading the upper bits of the target address into a register,
728 then branching with "be" which adds in the lower bits.
729 The "be" has its delay slot nullified. */
875c0872
DA
730 sym_value = (hsh->target_value
731 + hsh->target_section->output_offset
732 + hsh->target_section->output_section->vma);
30667bf3 733
c39a58e6 734 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 735 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
736 bfd_put_32 (stub_bfd, insn, loc);
737
c39a58e6 738 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 739 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
740 bfd_put_32 (stub_bfd, insn, loc + 4);
741
30667bf3 742 size = 8;
edd21aca
AM
743 break;
744
30667bf3
AM
745 case hppa_stub_long_branch_shared:
746 /* Branches are relative. This is where we are going to. */
875c0872
DA
747 sym_value = (hsh->target_value
748 + hsh->target_section->output_offset
749 + hsh->target_section->output_section->vma);
30667bf3
AM
750
751 /* And this is where we are coming from, more or less. */
875c0872 752 sym_value -= (hsh->stub_offset
30667bf3
AM
753 + stub_sec->output_offset
754 + stub_sec->output_section->vma);
755
74d1c347 756 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 757 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 758 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
759 bfd_put_32 (stub_bfd, insn, loc + 4);
760
47d89dba 761 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 762 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
763 bfd_put_32 (stub_bfd, insn, loc + 8);
764 size = 12;
765 break;
edd21aca 766
30667bf3
AM
767 case hppa_stub_import:
768 case hppa_stub_import_shared:
a63e02c7 769 off = hsh->hh->eh.plt.offset;
8dea1268 770 if (off >= (bfd_vma) -2)
49e9d0d3 771 abort ();
8dea1268
AM
772
773 off &= ~ (bfd_vma) 1;
774 sym_value = (off
ce558b89
AM
775 + htab->etab.splt->output_offset
776 + htab->etab.splt->output_section->vma
777 - elf_gp (htab->etab.splt->output_section->owner));
30667bf3
AM
778
779 insn = ADDIL_DP;
780#if R19_STUBS
875c0872 781 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
782 insn = ADDIL_R19;
783#endif
c39a58e6 784 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 785 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 786 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 787
47d89dba
AM
788 /* It is critical to use lrsel/rrsel here because we are using
789 two different offsets (+0 and +4) from sym_value. If we use
790 lsel/rsel then with unfortunate sym_values we will round
791 sym_value+4 up to the next 2k block leading to a mis-match
792 between the lsel and rsel value. */
c39a58e6 793 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 794 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 795 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 796
83c81bfe 797 if (htab->multi_subspace)
30667bf3 798 {
47d89dba 799 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 800 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 801 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 802
74d1c347
AM
803 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
804 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
805 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
806 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 807
30667bf3
AM
808 size = 28;
809 }
810 else
811 {
74d1c347 812 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 813 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 814 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 815 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 816
30667bf3
AM
817 size = 16;
818 }
252b5132 819
30667bf3 820 break;
252b5132 821
30667bf3
AM
822 case hppa_stub_export:
823 /* Branches are relative. This is where we are going to. */
875c0872
DA
824 sym_value = (hsh->target_value
825 + hsh->target_section->output_offset
826 + hsh->target_section->output_section->vma);
252b5132 827
30667bf3 828 /* And this is where we are coming from. */
875c0872 829 sym_value -= (hsh->stub_offset
30667bf3
AM
830 + stub_sec->output_offset
831 + stub_sec->output_section->vma);
edd21aca 832
067fa4a6
AM
833 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
834 && (!htab->has_22bit_branch
835 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 836 {
4eca0228 837 _bfd_error_handler
695344c0 838 /* xgettext:c-format */
d003868e 839 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 840 hsh->target_section->owner,
d003868e 841 stub_sec,
875c0872 842 (long) hsh->stub_offset,
a63e02c7 843 hsh->bh_root.string);
30667bf3 844 bfd_set_error (bfd_error_bad_value);
b34976b6 845 return FALSE;
252b5132 846 }
30667bf3 847
74d1c347 848 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
849 if (!htab->has_22bit_branch)
850 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
851 else
852 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
853 bfd_put_32 (stub_bfd, insn, loc);
854
74d1c347
AM
855 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
856 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
857 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
858 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
859 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
860
861 /* Point the function symbol at the stub. */
a63e02c7
DA
862 hsh->hh->eh.root.u.def.section = stub_sec;
863 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
864
865 size = 24;
866 break;
867
868 default:
869 BFD_FAIL ();
b34976b6 870 return FALSE;
252b5132
RH
871 }
872
eea6121a 873 stub_sec->size += size;
b34976b6 874 return TRUE;
252b5132
RH
875}
876
30667bf3
AM
877#undef LDIL_R1
878#undef BE_SR4_R1
879#undef BL_R1
880#undef ADDIL_R1
881#undef DEPI_R1
30667bf3
AM
882#undef LDW_R1_R21
883#undef LDW_R1_DLT
884#undef LDW_R1_R19
885#undef ADDIL_R19
886#undef LDW_R1_DP
887#undef LDSID_R21_R1
888#undef MTSP_R1
889#undef BE_SR0_R21
890#undef STW_RP
891#undef BV_R0_R21
892#undef BL_RP
893#undef NOP
894#undef LDW_RP
895#undef LDSID_RP_R1
896#undef BE_SR0_RP
252b5132 897
30667bf3
AM
898/* As above, but don't actually build the stub. Just bump offset so
899 we know stub section sizes. */
900
b34976b6 901static bfd_boolean
875c0872 902hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 903{
875c0872 904 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 905 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
906 int size;
907
908 /* Massage our args to the form they really have. */
875c0872 909 hsh = hppa_stub_hash_entry (bh);
c39a58e6 910 htab = in_arg;
30667bf3 911
875c0872 912 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 913 size = 8;
875c0872 914 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 915 size = 12;
875c0872 916 else if (hsh->stub_type == hppa_stub_export)
30667bf3 917 size = 24;
74d1c347 918 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 919 {
83c81bfe 920 if (htab->multi_subspace)
30667bf3
AM
921 size = 28;
922 else
923 size = 16;
924 }
252b5132 925
875c0872 926 hsh->stub_sec->size += size;
b34976b6 927 return TRUE;
30667bf3 928}
252b5132 929
30667bf3
AM
930/* Return nonzero if ABFD represents an HPPA ELF32 file.
931 Additionally we set the default architecture and machine. */
932
b34976b6 933static bfd_boolean
c39a58e6 934elf32_hppa_object_p (bfd *abfd)
30667bf3 935{
24a5e751
L
936 Elf_Internal_Ehdr * i_ehdrp;
937 unsigned int flags;
252b5132 938
24a5e751
L
939 i_ehdrp = elf_elfheader (abfd);
940 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
941 {
9c55345c 942 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 943 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 944 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 945 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 946 return FALSE;
24a5e751 947 }
225247f0
JT
948 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
949 {
950 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
951 but the kernel produces corefiles with OSABI=SysV. */
952 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
953 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
954 return FALSE;
955 }
24a5e751
L
956 else
957 {
958 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 959 return FALSE;
24a5e751
L
960 }
961
962 flags = i_ehdrp->e_flags;
30667bf3
AM
963 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
964 {
965 case EFA_PARISC_1_0:
966 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
967 case EFA_PARISC_1_1:
968 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
969 case EFA_PARISC_2_0:
970 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
971 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
973 }
b34976b6 974 return TRUE;
252b5132
RH
975}
976
30667bf3
AM
977/* Create the .plt and .got sections, and set up our hash table
978 short-cuts to various dynamic sections. */
979
b34976b6 980static bfd_boolean
c39a58e6 981elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 982{
83c81bfe 983 struct elf32_hppa_link_hash_table *htab;
875c0872 984 struct elf_link_hash_entry *eh;
edd21aca 985
30667bf3 986 /* Don't try to create the .plt and .got twice. */
83c81bfe 987 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
988 if (htab == NULL)
989 return FALSE;
ce558b89 990 if (htab->etab.splt != NULL)
b34976b6 991 return TRUE;
edd21aca 992
30667bf3
AM
993 /* Call the generic code to do most of the work. */
994 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 995 return FALSE;
252b5132 996
b18e2ae5
AM
997 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
999 eh = elf_hash_table (info)->hgot;
1000 eh->forced_local = 0;
1001 eh->other = STV_DEFAULT;
1002 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1003}
1004
ebe50bae
AM
1005/* Copy the extra info we tack onto an elf_link_hash_entry. */
1006
51b64d56 1007static void
fcfa13d2 1008elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1009 struct elf_link_hash_entry *eh_dir,
1010 struct elf_link_hash_entry *eh_ind)
ebe50bae 1011{
875c0872 1012 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1013
875c0872
DA
1014 hh_dir = hppa_elf_hash_entry (eh_dir);
1015 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1016
875c0872 1017 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1018 {
875c0872 1019 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1020 {
875c0872
DA
1021 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1022 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1023
fcfa13d2 1024 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1025 list. Merge any entries against the same section. */
875c0872 1026 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1027 {
875c0872 1028 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1029
fcfa13d2
AM
1030 for (hdh_q = hh_dir->dyn_relocs;
1031 hdh_q != NULL;
1032 hdh_q = hdh_q->hdh_next)
875c0872 1033 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1034 {
1035#if RELATIVE_DYNRELOCS
875c0872 1036 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1037#endif
875c0872 1038 hdh_q->count += hdh_p->count;
a63e02c7 1039 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1040 break;
1041 }
875c0872 1042 if (hdh_q == NULL)
a63e02c7 1043 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1044 }
875c0872 1045 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1046 }
1047
875c0872
DA
1048 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1049 hh_ind->dyn_relocs = NULL;
ebe50bae 1050 }
ebe50bae 1051
4fc8051d 1052 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1053 && eh_ind->root.type != bfd_link_hash_indirect
1054 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1055 {
1056 /* If called to transfer flags for a weakdef during processing
1057 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM
1059 if (eh_dir->versioned != versioned_hidden)
1060 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
875c0872
DA
1061 eh_dir->ref_regular |= eh_ind->ref_regular;
1062 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1063 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1064 }
4fc8051d 1065 else
9b52905e 1066 {
e81830c5
AM
1067 if (eh_ind->root.type == bfd_link_hash_indirect)
1068 {
1069 hh_dir->plabel |= hh_ind->plabel;
1070 hh_dir->tls_type |= hh_ind->tls_type;
1071 hh_ind->tls_type = GOT_UNKNOWN;
1072 }
9b52905e
NC
1073
1074 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1075 }
1076}
1077
1078static int
1079elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1080 int r_type, int is_local ATTRIBUTE_UNUSED)
1081{
1082 /* For now we don't support linker optimizations. */
1083 return r_type;
ebe50bae
AM
1084}
1085
d45b7d74
DA
1086/* Return a pointer to the local GOT, PLT and TLS reference counts
1087 for ABFD. Returns NULL if the storage allocation fails. */
1088
1089static bfd_signed_vma *
1090hppa32_elf_local_refcounts (bfd *abfd)
1091{
1092 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1093 bfd_signed_vma *local_refcounts;
68ffbac6 1094
d45b7d74
DA
1095 local_refcounts = elf_local_got_refcounts (abfd);
1096 if (local_refcounts == NULL)
1097 {
1098 bfd_size_type size;
1099
1100 /* Allocate space for local GOT and PLT reference
1101 counts. Done this way to save polluting elf_obj_tdata
1102 with another target specific pointer. */
1103 size = symtab_hdr->sh_info;
1104 size *= 2 * sizeof (bfd_signed_vma);
1105 /* Add in space to store the local GOT TLS types. */
1106 size += symtab_hdr->sh_info;
1107 local_refcounts = bfd_zalloc (abfd, size);
1108 if (local_refcounts == NULL)
1109 return NULL;
1110 elf_local_got_refcounts (abfd) = local_refcounts;
1111 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1112 symtab_hdr->sh_info);
1113 }
1114 return local_refcounts;
1115}
1116
1117
30667bf3 1118/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1119 calculate needed space in the global offset table, procedure linkage
1120 table, and dynamic reloc sections. At this point we haven't
1121 necessarily read all the input files. */
252b5132 1122
b34976b6 1123static bfd_boolean
c39a58e6
AM
1124elf32_hppa_check_relocs (bfd *abfd,
1125 struct bfd_link_info *info,
1126 asection *sec,
1127 const Elf_Internal_Rela *relocs)
252b5132 1128{
30667bf3 1129 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1130 struct elf_link_hash_entry **eh_syms;
1131 const Elf_Internal_Rela *rela;
1132 const Elf_Internal_Rela *rela_end;
83c81bfe 1133 struct elf32_hppa_link_hash_table *htab;
30667bf3 1134 asection *sreloc;
9b52905e 1135 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1136
0e1862bb 1137 if (bfd_link_relocatable (info))
b34976b6 1138 return TRUE;
30667bf3 1139
83c81bfe 1140 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1141 if (htab == NULL)
1142 return FALSE;
30667bf3 1143 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1144 eh_syms = elf_sym_hashes (abfd);
30667bf3 1145 sreloc = NULL;
30667bf3 1146
875c0872
DA
1147 rela_end = relocs + sec->reloc_count;
1148 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1149 {
1150 enum {
1151 NEED_GOT = 1,
1152 NEED_PLT = 2,
1153 NEED_DYNREL = 4,
98ceb8ce 1154 PLT_PLABEL = 8
30667bf3 1155 };
edd21aca 1156
30667bf3 1157 unsigned int r_symndx, r_type;
875c0872
DA
1158 struct elf32_hppa_link_hash_entry *hh;
1159 int need_entry = 0;
252b5132 1160
875c0872 1161 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1162
30667bf3 1163 if (r_symndx < symtab_hdr->sh_info)
875c0872 1164 hh = NULL;
30667bf3 1165 else
f7c5057a 1166 {
875c0872 1167 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1168 while (hh->eh.root.type == bfd_link_hash_indirect
1169 || hh->eh.root.type == bfd_link_hash_warning)
1170 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
81fbe831
AM
1171
1172 /* PR15323, ref flags aren't set for references in the same
1173 object. */
1174 hh->eh.root.non_ir_ref = 1;
f7c5057a 1175 }
252b5132 1176
875c0872 1177 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1178 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1179
30667bf3
AM
1180 switch (r_type)
1181 {
1182 case R_PARISC_DLTIND14F:
1183 case R_PARISC_DLTIND14R:
1184 case R_PARISC_DLTIND21L:
1185 /* This symbol requires a global offset table entry. */
1186 need_entry = NEED_GOT;
30667bf3
AM
1187 break;
1188
1189 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1190 case R_PARISC_PLABEL21L:
1191 case R_PARISC_PLABEL32:
74d1c347 1192 /* If the addend is non-zero, we break badly. */
875c0872 1193 if (rela->r_addend != 0)
49e9d0d3 1194 abort ();
74d1c347
AM
1195
1196 /* If we are creating a shared library, then we need to
1197 create a PLT entry for all PLABELs, because PLABELs with
1198 local symbols may be passed via a pointer to another
1199 object. Additionally, output a dynamic relocation
4dc86686 1200 pointing to the PLT entry.
875c0872 1201
4dc86686
AM
1202 For executables, the original 32-bit ABI allowed two
1203 different styles of PLABELs (function pointers): For
1204 global functions, the PLABEL word points into the .plt
1205 two bytes past a (function address, gp) pair, and for
1206 local functions the PLABEL points directly at the
1207 function. The magic +2 for the first type allows us to
1208 differentiate between the two. As you can imagine, this
1209 is a real pain when it comes to generating code to call
1210 functions indirectly or to compare function pointers.
1211 We avoid the mess by always pointing a PLABEL into the
1212 .plt, even for local functions. */
74d1c347 1213 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1214 break;
1215
1216 case R_PARISC_PCREL12F:
83c81bfe 1217 htab->has_12bit_branch = 1;
067fa4a6
AM
1218 goto branch_common;
1219
30667bf3
AM
1220 case R_PARISC_PCREL17C:
1221 case R_PARISC_PCREL17F:
83c81bfe 1222 htab->has_17bit_branch = 1;
067fa4a6
AM
1223 goto branch_common;
1224
30667bf3 1225 case R_PARISC_PCREL22F:
067fa4a6
AM
1226 htab->has_22bit_branch = 1;
1227 branch_common:
47d89dba
AM
1228 /* Function calls might need to go through the .plt, and
1229 might require long branch stubs. */
875c0872 1230 if (hh == NULL)
30667bf3
AM
1231 {
1232 /* We know local syms won't need a .plt entry, and if
1233 they need a long branch stub we can't guarantee that
1234 we can reach the stub. So just flag an error later
1235 if we're doing a shared link and find we need a long
1236 branch stub. */
1237 continue;
1238 }
1239 else
1240 {
1241 /* Global symbols will need a .plt entry if they remain
1242 global, and in most cases won't need a long branch
1243 stub. Unfortunately, we have to cater for the case
1244 where a symbol is forced local by versioning, or due
1245 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1246 need_entry = NEED_PLT;
a63e02c7 1247 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1248 need_entry = 0;
30667bf3
AM
1249 }
1250 break;
1251
36751eee 1252 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1253 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1254 case R_PARISC_PCREL14F: /* PC relative load/store. */
1255 case R_PARISC_PCREL14R:
1256 case R_PARISC_PCREL17R: /* External branches. */
1257 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1258 case R_PARISC_PCREL32:
30667bf3
AM
1259 /* We don't need to propagate the relocation if linking a
1260 shared object since these are section relative. */
1261 continue;
1262
1263 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1264 case R_PARISC_DPREL14R:
1265 case R_PARISC_DPREL21L:
0e1862bb 1266 if (bfd_link_pic (info))
30667bf3 1267 {
4eca0228 1268 _bfd_error_handler
695344c0 1269 /* xgettext:c-format */
d003868e
AM
1270 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1271 abfd,
30667bf3
AM
1272 elf_hppa_howto_table[r_type].name);
1273 bfd_set_error (bfd_error_bad_value);
b34976b6 1274 return FALSE;
30667bf3
AM
1275 }
1276 /* Fall through. */
1277
1278 case R_PARISC_DIR17F: /* Used for external branches. */
1279 case R_PARISC_DIR17R:
47d89dba
AM
1280 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1281 case R_PARISC_DIR14R:
30667bf3 1282 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1283 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1284 /* We may want to output a dynamic relocation later. */
1285 need_entry = NEED_DYNREL;
1286 break;
1287
1288 /* This relocation describes the C++ object vtable hierarchy.
1289 Reconstruct it for later use during GC. */
1290 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1291 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1292 return FALSE;
30667bf3
AM
1293 continue;
1294
1295 /* This relocation describes which C++ vtable entries are actually
1296 used. Record for later use during GC. */
1297 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1298 BFD_ASSERT (hh != NULL);
1299 if (hh != NULL
1300 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1301 return FALSE;
30667bf3
AM
1302 continue;
1303
9b52905e
NC
1304 case R_PARISC_TLS_GD21L:
1305 case R_PARISC_TLS_GD14R:
1306 case R_PARISC_TLS_LDM21L:
1307 case R_PARISC_TLS_LDM14R:
1308 need_entry = NEED_GOT;
1309 break;
1310
1311 case R_PARISC_TLS_IE21L:
1312 case R_PARISC_TLS_IE14R:
0e1862bb 1313 if (bfd_link_pic (info))
9b52905e
NC
1314 info->flags |= DF_STATIC_TLS;
1315 need_entry = NEED_GOT;
1316 break;
1317
30667bf3
AM
1318 default:
1319 continue;
1320 }
1321
1322 /* Now carry out our orders. */
1323 if (need_entry & NEED_GOT)
1324 {
9b52905e
NC
1325 switch (r_type)
1326 {
1327 default:
1328 tls_type = GOT_NORMAL;
1329 break;
1330 case R_PARISC_TLS_GD21L:
1331 case R_PARISC_TLS_GD14R:
1332 tls_type |= GOT_TLS_GD;
1333 break;
1334 case R_PARISC_TLS_LDM21L:
1335 case R_PARISC_TLS_LDM14R:
1336 tls_type |= GOT_TLS_LDM;
1337 break;
1338 case R_PARISC_TLS_IE21L:
1339 case R_PARISC_TLS_IE14R:
1340 tls_type |= GOT_TLS_IE;
1341 break;
1342 }
1343
30667bf3 1344 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1345 relocation for this entry. */
ce558b89 1346 if (htab->etab.sgot == NULL)
30667bf3 1347 {
a63e02c7 1348 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1349 return FALSE;
30667bf3
AM
1350 }
1351
9b52905e
NC
1352 if (r_type == R_PARISC_TLS_LDM21L
1353 || r_type == R_PARISC_TLS_LDM14R)
4dfe6ac6 1354 htab->tls_ldm_got.refcount += 1;
30667bf3
AM
1355 else
1356 {
9b52905e
NC
1357 if (hh != NULL)
1358 {
1359 hh->eh.got.refcount += 1;
1360 old_tls_type = hh->tls_type;
1361 }
1362 else
1363 {
1364 bfd_signed_vma *local_got_refcounts;
68ffbac6 1365
9b52905e 1366 /* This is a global offset table entry for a local symbol. */
d45b7d74 1367 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
9b52905e 1368 if (local_got_refcounts == NULL)
d45b7d74 1369 return FALSE;
9b52905e
NC
1370 local_got_refcounts[r_symndx] += 1;
1371
1372 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1373 }
1374
1375 tls_type |= old_tls_type;
1376
1377 if (old_tls_type != tls_type)
1378 {
1379 if (hh != NULL)
1380 hh->tls_type = tls_type;
1381 else
1382 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1383 }
1384
30667bf3
AM
1385 }
1386 }
1387
1388 if (need_entry & NEED_PLT)
1389 {
1390 /* If we are creating a shared library, and this is a reloc
1391 against a weak symbol or a global symbol in a dynamic
1392 object, then we will be creating an import stub and a
1393 .plt entry for the symbol. Similarly, on a normal link
1394 to symbols defined in a dynamic object we'll need the
1395 import stub and a .plt entry. We don't know yet whether
1396 the symbol is defined or not, so make an entry anyway and
1397 clean up later in adjust_dynamic_symbol. */
1398 if ((sec->flags & SEC_ALLOC) != 0)
1399 {
875c0872 1400 if (hh != NULL)
30667bf3 1401 {
a63e02c7
DA
1402 hh->eh.needs_plt = 1;
1403 hh->eh.plt.refcount += 1;
74d1c347 1404
36605136
AM
1405 /* If this .plt entry is for a plabel, mark it so
1406 that adjust_dynamic_symbol will keep the entry
1407 even if it appears to be local. */
74d1c347 1408 if (need_entry & PLT_PLABEL)
875c0872 1409 hh->plabel = 1;
74d1c347
AM
1410 }
1411 else if (need_entry & PLT_PLABEL)
1412 {
3ac8354b 1413 bfd_signed_vma *local_got_refcounts;
68fb2e56 1414 bfd_signed_vma *local_plt_refcounts;
74d1c347 1415
d45b7d74 1416 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1417 if (local_got_refcounts == NULL)
d45b7d74 1418 return FALSE;
68fb2e56
AM
1419 local_plt_refcounts = (local_got_refcounts
1420 + symtab_hdr->sh_info);
ebe50bae 1421 local_plt_refcounts[r_symndx] += 1;
30667bf3 1422 }
30667bf3
AM
1423 }
1424 }
1425
98ceb8ce 1426 if (need_entry & NEED_DYNREL)
30667bf3
AM
1427 {
1428 /* Flag this symbol as having a non-got, non-plt reference
1429 so that we generate copy relocs if it turns out to be
1430 dynamic. */
0e1862bb 1431 if (hh != NULL && !bfd_link_pic (info))
a63e02c7 1432 hh->eh.non_got_ref = 1;
30667bf3
AM
1433
1434 /* If we are creating a shared library then we need to copy
1435 the reloc into the shared library. However, if we are
1436 linking with -Bsymbolic, we need only copy absolute
1437 relocs or relocs against symbols that are not defined in
1438 an object we are including in the link. PC- or DP- or
1439 DLT-relative relocs against any local sym or global sym
1440 with DEF_REGULAR set, can be discarded. At this point we
1441 have not seen all the input files, so it is possible that
1442 DEF_REGULAR is not set now but will be set later (it is
1443 never cleared). We account for that possibility below by
98ceb8ce 1444 storing information in the dyn_relocs field of the
30667bf3
AM
1445 hash table entry.
1446
1447 A similar situation to the -Bsymbolic case occurs when
1448 creating shared libraries and symbol visibility changes
1449 render the symbol local.
1450
1451 As it turns out, all the relocs we will be creating here
1452 are absolute, so we cannot remove them on -Bsymbolic
1453 links or visibility changes anyway. A STUB_REL reloc
1454 is absolute too, as in that case it is the reloc in the
1455 stub we will be creating, rather than copying the PCREL
56882138
AM
1456 reloc in the branch.
1457
1458 If on the other hand, we are creating an executable, we
1459 may need to keep relocations for symbols satisfied by a
1460 dynamic library if we manage to avoid copy relocs for the
1461 symbol. */
0e1862bb 1462 if ((bfd_link_pic (info)
446f2863
AM
1463 && (sec->flags & SEC_ALLOC) != 0
1464 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1465 || (hh != NULL
a496fbc8 1466 && (!SYMBOLIC_BIND (info, &hh->eh)
a63e02c7
DA
1467 || hh->eh.root.type == bfd_link_hash_defweak
1468 || !hh->eh.def_regular))))
4fc8051d 1469 || (ELIMINATE_COPY_RELOCS
0e1862bb 1470 && !bfd_link_pic (info)
446f2863 1471 && (sec->flags & SEC_ALLOC) != 0
875c0872 1472 && hh != NULL
a63e02c7
DA
1473 && (hh->eh.root.type == bfd_link_hash_defweak
1474 || !hh->eh.def_regular)))
30667bf3 1475 {
875c0872
DA
1476 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1477 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1478
30667bf3
AM
1479 /* Create a reloc section in dynobj and make room for
1480 this reloc. */
98ceb8ce 1481 if (sreloc == NULL)
30667bf3 1482 {
83bac4b0
NC
1483 sreloc = _bfd_elf_make_dynamic_reloc_section
1484 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1485
98ceb8ce 1486 if (sreloc == NULL)
30667bf3 1487 {
83bac4b0
NC
1488 bfd_set_error (bfd_error_bad_value);
1489 return FALSE;
30667bf3 1490 }
30667bf3
AM
1491 }
1492
98ceb8ce
AM
1493 /* If this is a global symbol, we count the number of
1494 relocations we need for this symbol. */
875c0872 1495 if (hh != NULL)
30667bf3 1496 {
875c0872 1497 hdh_head = &hh->dyn_relocs;
ec338859
AM
1498 }
1499 else
1500 {
1501 /* Track dynamic relocs needed for local syms too.
1502 We really need local syms available to do this
1503 easily. Oh well. */
875c0872 1504 asection *sr;
6edfbbad 1505 void *vpp;
87d72d41 1506 Elf_Internal_Sym *isym;
6edfbbad 1507
87d72d41
AM
1508 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1509 abfd, r_symndx);
1510 if (isym == NULL)
b34976b6 1511 return FALSE;
30667bf3 1512
87d72d41
AM
1513 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1514 if (sr == NULL)
1515 sr = sec;
1516
6edfbbad
DJ
1517 vpp = &elf_section_data (sr)->local_dynrel;
1518 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1519 }
1520
875c0872
DA
1521 hdh_p = *hdh_head;
1522 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1523 {
a63e02c7 1524 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1525 if (hdh_p == NULL)
b34976b6 1526 return FALSE;
a63e02c7 1527 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1528 *hdh_head = hdh_p;
1529 hdh_p->sec = sec;
1530 hdh_p->count = 0;
98ceb8ce 1531#if RELATIVE_DYNRELOCS
875c0872 1532 hdh_p->relative_count = 0;
98ceb8ce 1533#endif
ec338859 1534 }
98ceb8ce 1535
875c0872 1536 hdh_p->count += 1;
98ceb8ce 1537#if RELATIVE_DYNRELOCS
ec338859 1538 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1539 hdh_p->relative_count += 1;
98ceb8ce 1540#endif
30667bf3
AM
1541 }
1542 }
1543 }
edd21aca 1544
b34976b6 1545 return TRUE;
edd21aca
AM
1546}
1547
30667bf3
AM
1548/* Return the section that should be marked against garbage collection
1549 for a given relocation. */
1550
1551static asection *
c39a58e6 1552elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1553 struct bfd_link_info *info,
875c0872
DA
1554 Elf_Internal_Rela *rela,
1555 struct elf_link_hash_entry *hh,
c39a58e6 1556 Elf_Internal_Sym *sym)
30667bf3 1557{
875c0872 1558 if (hh != NULL)
07adf181
AM
1559 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1560 {
1561 case R_PARISC_GNU_VTINHERIT:
1562 case R_PARISC_GNU_VTENTRY:
1563 return NULL;
1564 }
30667bf3 1565
07adf181 1566 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1567}
1568
30667bf3
AM
1569/* Update the got and plt entry reference counts for the section being
1570 removed. */
edd21aca 1571
b34976b6 1572static bfd_boolean
c39a58e6
AM
1573elf32_hppa_gc_sweep_hook (bfd *abfd,
1574 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1575 asection *sec,
1576 const Elf_Internal_Rela *relocs)
edd21aca 1577{
30667bf3 1578 Elf_Internal_Shdr *symtab_hdr;
875c0872 1579 struct elf_link_hash_entry **eh_syms;
30667bf3 1580 bfd_signed_vma *local_got_refcounts;
74d1c347 1581 bfd_signed_vma *local_plt_refcounts;
875c0872 1582 const Elf_Internal_Rela *rela, *relend;
4dfe6ac6 1583 struct elf32_hppa_link_hash_table *htab;
30667bf3 1584
0e1862bb 1585 if (bfd_link_relocatable (info))
7dda2462
TG
1586 return TRUE;
1587
4dfe6ac6
NC
1588 htab = hppa_link_hash_table (info);
1589 if (htab == NULL)
1590 return FALSE;
1591
ec338859 1592 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1593
30667bf3 1594 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1595 eh_syms = elf_sym_hashes (abfd);
30667bf3 1596 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1597 local_plt_refcounts = local_got_refcounts;
1598 if (local_plt_refcounts != NULL)
1599 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1600
30667bf3 1601 relend = relocs + sec->reloc_count;
875c0872 1602 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1603 {
1604 unsigned long r_symndx;
1605 unsigned int r_type;
875c0872 1606 struct elf_link_hash_entry *eh = NULL;
26e41594 1607
875c0872 1608 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1609 if (r_symndx >= symtab_hdr->sh_info)
1610 {
875c0872
DA
1611 struct elf32_hppa_link_hash_entry *hh;
1612 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1613 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1614
875c0872
DA
1615 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1616 while (eh->root.type == bfd_link_hash_indirect
1617 || eh->root.type == bfd_link_hash_warning)
1618 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1619 hh = hppa_elf_hash_entry (eh);
26e41594 1620
a63e02c7 1621 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1622 if (hdh_p->sec == sec)
26e41594
AM
1623 {
1624 /* Everything must go for SEC. */
a63e02c7 1625 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1626 break;
1627 }
1628 }
1629
875c0872 1630 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1631 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1632
26e41594
AM
1633 switch (r_type)
1634 {
1635 case R_PARISC_DLTIND14F:
1636 case R_PARISC_DLTIND14R:
1637 case R_PARISC_DLTIND21L:
9b52905e
NC
1638 case R_PARISC_TLS_GD21L:
1639 case R_PARISC_TLS_GD14R:
1640 case R_PARISC_TLS_IE21L:
1641 case R_PARISC_TLS_IE14R:
875c0872 1642 if (eh != NULL)
26e41594 1643 {
875c0872
DA
1644 if (eh->got.refcount > 0)
1645 eh->got.refcount -= 1;
26e41594
AM
1646 }
1647 else if (local_got_refcounts != NULL)
1648 {
1649 if (local_got_refcounts[r_symndx] > 0)
1650 local_got_refcounts[r_symndx] -= 1;
1651 }
1652 break;
98ceb8ce 1653
9b52905e
NC
1654 case R_PARISC_TLS_LDM21L:
1655 case R_PARISC_TLS_LDM14R:
4dfe6ac6 1656 htab->tls_ldm_got.refcount -= 1;
9b52905e
NC
1657 break;
1658
26e41594
AM
1659 case R_PARISC_PCREL12F:
1660 case R_PARISC_PCREL17C:
1661 case R_PARISC_PCREL17F:
1662 case R_PARISC_PCREL22F:
875c0872 1663 if (eh != NULL)
26e41594 1664 {
875c0872
DA
1665 if (eh->plt.refcount > 0)
1666 eh->plt.refcount -= 1;
26e41594
AM
1667 }
1668 break;
1669
1670 case R_PARISC_PLABEL14R:
1671 case R_PARISC_PLABEL21L:
1672 case R_PARISC_PLABEL32:
875c0872 1673 if (eh != NULL)
26e41594 1674 {
875c0872
DA
1675 if (eh->plt.refcount > 0)
1676 eh->plt.refcount -= 1;
26e41594
AM
1677 }
1678 else if (local_plt_refcounts != NULL)
1679 {
1680 if (local_plt_refcounts[r_symndx] > 0)
1681 local_plt_refcounts[r_symndx] -= 1;
1682 }
1683 break;
1684
1685 default:
1686 break;
1687 }
1688 }
252b5132 1689
b34976b6 1690 return TRUE;
252b5132
RH
1691}
1692
edfc032f
AM
1693/* Support for core dump NOTE sections. */
1694
1695static bfd_boolean
1696elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1697{
1698 int offset;
1699 size_t size;
1700
1701 switch (note->descsz)
1702 {
1703 default:
1704 return FALSE;
1705
1706 case 396: /* Linux/hppa */
1707 /* pr_cursig */
228e534f 1708 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1709
1710 /* pr_pid */
228e534f 1711 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1712
1713 /* pr_reg */
1714 offset = 72;
1715 size = 320;
1716
1717 break;
1718 }
1719
1720 /* Make a ".reg/999" section. */
1721 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1722 size, note->descpos + offset);
1723}
1724
1725static bfd_boolean
1726elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1727{
1728 switch (note->descsz)
1729 {
1730 default:
1731 return FALSE;
1732
1733 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1734 elf_tdata (abfd)->core->program
edfc032f 1735 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1736 elf_tdata (abfd)->core->command
edfc032f
AM
1737 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1738 }
1739
1740 /* Note that for some reason, a spurious space is tacked
1741 onto the end of the args in some (at least one anyway)
1742 implementations, so strip it off if it exists. */
1743 {
228e534f 1744 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1745 int n = strlen (command);
1746
1747 if (0 < n && command[n - 1] == ' ')
1748 command[n - 1] = '\0';
1749 }
1750
1751 return TRUE;
1752}
1753
74d1c347
AM
1754/* Our own version of hide_symbol, so that we can keep plt entries for
1755 plabels. */
1756
1757static void
c39a58e6 1758elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1759 struct elf_link_hash_entry *eh,
c39a58e6 1760 bfd_boolean force_local)
74d1c347 1761{
e5094212
AM
1762 if (force_local)
1763 {
875c0872
DA
1764 eh->forced_local = 1;
1765 if (eh->dynindx != -1)
e5094212 1766 {
875c0872 1767 eh->dynindx = -1;
e5094212 1768 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1769 eh->dynstr_index);
e5094212 1770 }
31fc8a0b
NC
1771
1772 /* PR 16082: Remove version information from hidden symbol. */
1773 eh->verinfo.verdef = NULL;
1774 eh->verinfo.vertree = NULL;
e5094212
AM
1775 }
1776
4340287b
DA
1777 /* STT_GNU_IFUNC symbol must go through PLT. */
1778 if (! hppa_elf_hash_entry (eh)->plabel
1779 && eh->type != STT_GNU_IFUNC)
74d1c347 1780 {
875c0872 1781 eh->needs_plt = 0;
4340287b 1782 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1783 }
1784}
1785
30667bf3
AM
1786/* Adjust a symbol defined by a dynamic object and referenced by a
1787 regular object. The current definition is in some section of the
1788 dynamic object, but we're not including those sections. We have to
1789 change the definition to something the rest of the link can
1790 understand. */
252b5132 1791
b34976b6 1792static bfd_boolean
c39a58e6 1793elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1794 struct elf_link_hash_entry *eh)
252b5132 1795{
83c81bfe 1796 struct elf32_hppa_link_hash_table *htab;
5474d94f 1797 asection *sec, *srel;
30667bf3
AM
1798
1799 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1800 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1801 if (eh->type == STT_FUNC
1802 || eh->needs_plt)
30667bf3 1803 {
4340287b
DA
1804 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1805 The refcounts are not reliable when it has been hidden since
1806 hide_symbol can be called before the plabel flag is set. */
1807 if (hppa_elf_hash_entry (eh)->plabel
1808 && eh->plt.refcount <= 0)
1809 eh->plt.refcount = 1;
1810
875c0872
DA
1811 if (eh->plt.refcount <= 0
1812 || (eh->def_regular
1813 && eh->root.type != bfd_link_hash_defweak
1814 && ! hppa_elf_hash_entry (eh)->plabel
0e1862bb 1815 && (!bfd_link_pic (info) || SYMBOLIC_BIND (info, eh))))
30667bf3
AM
1816 {
1817 /* The .plt entry is not needed when:
1818 a) Garbage collection has removed all references to the
1819 symbol, or
1820 b) We know for certain the symbol is defined in this
74d1c347
AM
1821 object, and it's not a weak definition, nor is the symbol
1822 used by a plabel relocation. Either this object is the
1823 application or we are doing a shared symbolic link. */
1824
875c0872
DA
1825 eh->plt.offset = (bfd_vma) -1;
1826 eh->needs_plt = 0;
30667bf3 1827 }
4dc86686 1828
b34976b6 1829 return TRUE;
30667bf3 1830 }
bbd7ec4a 1831 else
875c0872 1832 eh->plt.offset = (bfd_vma) -1;
edd21aca 1833
30667bf3
AM
1834 /* If this is a weak symbol, and there is a real definition, the
1835 processor independent code will have arranged for us to see the
1836 real definition first, and we can just use the same value. */
875c0872 1837 if (eh->u.weakdef != NULL)
edd21aca 1838 {
875c0872
DA
1839 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1840 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1841 abort ();
875c0872
DA
1842 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1843 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1844 if (ELIMINATE_COPY_RELOCS)
875c0872 1845 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1846 return TRUE;
30667bf3 1847 }
edd21aca 1848
30667bf3
AM
1849 /* This is a reference to a symbol defined by a dynamic object which
1850 is not a function. */
1851
1852 /* If we are creating a shared library, we must presume that the
1853 only references to the symbol are via the global offset table.
1854 For such cases we need not do anything here; the relocations will
1855 be handled correctly by relocate_section. */
0e1862bb 1856 if (bfd_link_pic (info))
b34976b6 1857 return TRUE;
30667bf3
AM
1858
1859 /* If there are no references to this symbol that do not use the
1860 GOT, we don't need to generate a copy reloc. */
875c0872 1861 if (!eh->non_got_ref)
b34976b6 1862 return TRUE;
30667bf3 1863
4fc8051d 1864 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1865 {
875c0872
DA
1866 struct elf32_hppa_link_hash_entry *hh;
1867 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1868
875c0872 1869 hh = hppa_elf_hash_entry (eh);
a63e02c7 1870 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1871 {
875c0872
DA
1872 sec = hdh_p->sec->output_section;
1873 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1874 break;
1875 }
1876
1877 /* If we didn't find any dynamic relocs in read-only sections, then
1878 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1879 if (hdh_p == NULL)
4fc8051d 1880 {
875c0872 1881 eh->non_got_ref = 0;
4fc8051d
AM
1882 return TRUE;
1883 }
ebe50bae
AM
1884 }
1885
30667bf3
AM
1886 /* We must allocate the symbol in our .dynbss section, which will
1887 become part of the .bss section of the executable. There will be
1888 an entry for this symbol in the .dynsym section. The dynamic
1889 object will contain position independent code, so all references
1890 from the dynamic object to this symbol will go through the global
1891 offset table. The dynamic linker will use the .dynsym entry to
1892 determine the address it must put in the global offset table, so
1893 both the dynamic object and the regular object will refer to the
1894 same memory location for the variable. */
1895
3ac8354b 1896 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1897 if (htab == NULL)
1898 return FALSE;
30667bf3
AM
1899
1900 /* We must generate a COPY reloc to tell the dynamic linker to
1901 copy the initial value out of the dynamic object and into the
3ac8354b 1902 runtime process image. */
5474d94f
AM
1903 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1904 {
1905 sec = htab->etab.sdynrelro;
1906 srel = htab->etab.sreldynrelro;
1907 }
1908 else
1909 {
1910 sec = htab->etab.sdynbss;
1911 srel = htab->etab.srelbss;
1912 }
1d7e9d18 1913 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1914 {
5474d94f 1915 srel->size += sizeof (Elf32_External_Rela);
875c0872 1916 eh->needs_copy = 1;
edd21aca 1917 }
252b5132 1918
6cabe1ea 1919 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
252b5132
RH
1920}
1921
e5ee5df1 1922/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1923 ie. plabel entries. */
a8d02d66 1924
b34976b6 1925static bfd_boolean
875c0872 1926allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1927{
1928 struct bfd_link_info *info;
1929 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1930 struct elf32_hppa_link_hash_entry *hh;
1931 asection *sec;
a8d02d66 1932
875c0872 1933 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1934 return TRUE;
a8d02d66 1935
875c0872 1936 info = (struct bfd_link_info *) inf;
9b52905e 1937 hh = hppa_elf_hash_entry (eh);
a8d02d66 1938 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1939 if (htab == NULL)
1940 return FALSE;
1941
a63e02c7 1942 if (htab->etab.dynamic_sections_created
875c0872 1943 && eh->plt.refcount > 0)
e5ee5df1
AM
1944 {
1945 /* Make sure this symbol is output as a dynamic symbol.
1946 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1947 if (eh->dynindx == -1
1948 && !eh->forced_local
1949 && eh->type != STT_PARISC_MILLI)
a8d02d66 1950 {
875c0872 1951 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1952 return FALSE;
e5ee5df1
AM
1953 }
1954
0e1862bb 1955 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
e5ee5df1 1956 {
067fa4a6
AM
1957 /* Allocate these later. From this point on, h->plabel
1958 means that the plt entry is only used by a plabel.
1959 We'll be using a normal plt entry for this symbol, so
1960 clear the plabel indicator. */
68ffbac6 1961
875c0872 1962 hh->plabel = 0;
e5ee5df1 1963 }
875c0872 1964 else if (hh->plabel)
e5ee5df1
AM
1965 {
1966 /* Make an entry in the .plt section for plabel references
1967 that won't have a .plt entry for other reasons. */
ce558b89 1968 sec = htab->etab.splt;
875c0872
DA
1969 eh->plt.offset = sec->size;
1970 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1971 }
1972 else
e5ee5df1
AM
1973 {
1974 /* No .plt entry needed. */
875c0872
DA
1975 eh->plt.offset = (bfd_vma) -1;
1976 eh->needs_plt = 0;
e5ee5df1
AM
1977 }
1978 }
1979 else
1980 {
875c0872
DA
1981 eh->plt.offset = (bfd_vma) -1;
1982 eh->needs_plt = 0;
a8d02d66
AM
1983 }
1984
b34976b6 1985 return TRUE;
a8d02d66
AM
1986}
1987
4dc86686
AM
1988/* Allocate space in .plt, .got and associated reloc sections for
1989 global syms. */
1990
b34976b6 1991static bfd_boolean
875c0872 1992allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1993{
1994 struct bfd_link_info *info;
83c81bfe 1995 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1996 asection *sec;
1997 struct elf32_hppa_link_hash_entry *hh;
1998 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 1999
875c0872 2000 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2001 return TRUE;
73a74a62 2002
c39a58e6 2003 info = inf;
83c81bfe 2004 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2005 if (htab == NULL)
2006 return FALSE;
2007
875c0872 2008 hh = hppa_elf_hash_entry (eh);
68ffbac6 2009
a63e02c7 2010 if (htab->etab.dynamic_sections_created
875c0872
DA
2011 && eh->plt.offset != (bfd_vma) -1
2012 && !hh->plabel
2013 && eh->plt.refcount > 0)
4dc86686 2014 {
e5ee5df1 2015 /* Make an entry in the .plt section. */
ce558b89 2016 sec = htab->etab.splt;
875c0872
DA
2017 eh->plt.offset = sec->size;
2018 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2019
e5ee5df1 2020 /* We also need to make an entry in the .rela.plt section. */
ce558b89 2021 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2022 htab->need_plt_stub = 1;
4dc86686 2023 }
edd21aca 2024
875c0872 2025 if (eh->got.refcount > 0)
4dc86686 2026 {
446f2863
AM
2027 /* Make sure this symbol is output as a dynamic symbol.
2028 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2029 if (eh->dynindx == -1
2030 && !eh->forced_local
2031 && eh->type != STT_PARISC_MILLI)
446f2863 2032 {
875c0872 2033 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2034 return FALSE;
446f2863
AM
2035 }
2036
ce558b89 2037 sec = htab->etab.sgot;
875c0872
DA
2038 eh->got.offset = sec->size;
2039 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2040 /* R_PARISC_TLS_GD* needs two GOT entries */
2041 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2042 sec->size += GOT_ENTRY_SIZE * 2;
2043 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2044 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2045 if (htab->etab.dynamic_sections_created
0e1862bb 2046 && (bfd_link_pic (info)
875c0872
DA
2047 || (eh->dynindx != -1
2048 && !eh->forced_local)))
ce757d15 2049 {
ce558b89 2050 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e 2051 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
ce558b89 2052 htab->etab.srelgot->size += 2 * sizeof (Elf32_External_Rela);
9b52905e 2053 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
ce558b89 2054 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2055 }
4dc86686
AM
2056 }
2057 else
875c0872 2058 eh->got.offset = (bfd_vma) -1;
30667bf3 2059
875c0872 2060 if (hh->dyn_relocs == NULL)
b34976b6 2061 return TRUE;
30667bf3 2062
98ceb8ce
AM
2063 /* If this is a -Bsymbolic shared link, then we need to discard all
2064 space allocated for dynamic pc-relative relocs against symbols
2065 defined in a regular object. For the normal shared case, discard
2066 space for relocs that have become local due to symbol visibility
2067 changes. */
0e1862bb 2068 if (bfd_link_pic (info))
446f2863 2069 {
98ceb8ce 2070#if RELATIVE_DYNRELOCS
875c0872 2071 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2072 {
875c0872 2073 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2074
875c0872 2075 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2076 {
875c0872
DA
2077 hdh_p->count -= hdh_p->relative_count;
2078 hdh_p->relative_count = 0;
2079 if (hdh_p->count == 0)
a63e02c7 2080 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2081 else
a63e02c7 2082 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2083 }
2084 }
2085#endif
4fc8051d
AM
2086
2087 /* Also discard relocs on undefined weak syms with non-default
2088 visibility. */
22d606e9 2089 if (hh->dyn_relocs != NULL
875c0872 2090 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2091 {
2092 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2093 hh->dyn_relocs = NULL;
2094
2095 /* Make sure undefined weak symbols are output as a dynamic
2096 symbol in PIEs. */
2097 else if (eh->dynindx == -1
2098 && !eh->forced_local)
2099 {
2100 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2101 return FALSE;
2102 }
2103 }
446f2863 2104 }
98ceb8ce 2105 else
30667bf3 2106 {
98ceb8ce
AM
2107 /* For the non-shared case, discard space for relocs against
2108 symbols which turn out to need copy relocs or are not
2109 dynamic. */
68ffbac6 2110
875c0872 2111 if (!eh->non_got_ref
4fc8051d 2112 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2113 && eh->def_dynamic
2114 && !eh->def_regular)
a63e02c7 2115 || (htab->etab.dynamic_sections_created
875c0872
DA
2116 && (eh->root.type == bfd_link_hash_undefweak
2117 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2118 {
2119 /* Make sure this symbol is output as a dynamic symbol.
2120 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2121 if (eh->dynindx == -1
2122 && !eh->forced_local
2123 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2124 {
875c0872 2125 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2126 return FALSE;
98ceb8ce
AM
2127 }
2128
2129 /* If that succeeded, we know we'll be keeping all the
2130 relocs. */
875c0872 2131 if (eh->dynindx != -1)
98ceb8ce
AM
2132 goto keep;
2133 }
446f2863 2134
875c0872 2135 hh->dyn_relocs = NULL;
b34976b6 2136 return TRUE;
98ceb8ce 2137
ec338859 2138 keep: ;
30667bf3 2139 }
30667bf3 2140
98ceb8ce 2141 /* Finally, allocate space. */
a63e02c7 2142 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2143 {
875c0872
DA
2144 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2145 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2146 }
30667bf3 2147
b34976b6 2148 return TRUE;
30667bf3 2149}
30667bf3 2150
d5c73c2f
AM
2151/* This function is called via elf_link_hash_traverse to force
2152 millicode symbols local so they do not end up as globals in the
2153 dynamic symbol table. We ought to be able to do this in
2154 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2155 for all dynamic symbols. Arguably, this is a bug in
2156 elf_adjust_dynamic_symbol. */
2157
b34976b6 2158static bfd_boolean
875c0872 2159clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2160 struct bfd_link_info *info)
d5c73c2f 2161{
875c0872
DA
2162 if (eh->type == STT_PARISC_MILLI
2163 && !eh->forced_local)
e0522e89 2164 {
875c0872 2165 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2166 }
b34976b6 2167 return TRUE;
d5c73c2f
AM
2168}
2169
98ceb8ce
AM
2170/* Find any dynamic relocs that apply to read-only sections. */
2171
b34976b6 2172static bfd_boolean
875c0872 2173readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2174{
875c0872
DA
2175 struct elf32_hppa_link_hash_entry *hh;
2176 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2177
875c0872 2178 hh = hppa_elf_hash_entry (eh);
a63e02c7 2179 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2180 {
875c0872 2181 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2182
875c0872 2183 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2184 {
c39a58e6 2185 struct bfd_link_info *info = inf;
98ceb8ce
AM
2186
2187 info->flags |= DF_TEXTREL;
2188
2189 /* Not an error, just cut short the traversal. */
b34976b6 2190 return FALSE;
98ceb8ce
AM
2191 }
2192 }
b34976b6 2193 return TRUE;
98ceb8ce
AM
2194}
2195
30667bf3
AM
2196/* Set the sizes of the dynamic sections. */
2197
b34976b6 2198static bfd_boolean
c39a58e6
AM
2199elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2200 struct bfd_link_info *info)
30667bf3 2201{
83c81bfe 2202 struct elf32_hppa_link_hash_table *htab;
30667bf3 2203 bfd *dynobj;
98ceb8ce 2204 bfd *ibfd;
875c0872 2205 asection *sec;
b34976b6 2206 bfd_boolean relocs;
30667bf3 2207
83c81bfe 2208 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2209 if (htab == NULL)
2210 return FALSE;
2211
a63e02c7 2212 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2213 if (dynobj == NULL)
2214 abort ();
30667bf3 2215
a63e02c7 2216 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2217 {
2218 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2219 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2220 {
3d4d4302 2221 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2222 if (sec == NULL)
49e9d0d3 2223 abort ();
875c0872
DA
2224 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2225 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2226 }
74d1c347 2227
d5c73c2f 2228 /* Force millicode symbols local. */
a63e02c7 2229 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2230 clobber_millicode_symbols,
2231 info);
68fb2e56 2232 }
d5c73c2f 2233
98ceb8ce
AM
2234 /* Set up .got and .plt offsets for local syms, and space for local
2235 dynamic relocs. */
c72f2fb2 2236 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2237 {
2238 bfd_signed_vma *local_got;
2239 bfd_signed_vma *end_local_got;
2240 bfd_signed_vma *local_plt;
2241 bfd_signed_vma *end_local_plt;
2242 bfd_size_type locsymcount;
2243 Elf_Internal_Shdr *symtab_hdr;
2244 asection *srel;
9b52905e 2245 char *local_tls_type;
74d1c347 2246
98ceb8ce 2247 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2248 continue;
4dc86686 2249
875c0872 2250 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2251 {
875c0872 2252 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2253
875c0872
DA
2254 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2255 elf_section_data (sec)->local_dynrel);
2256 hdh_p != NULL;
a63e02c7 2257 hdh_p = hdh_p->hdh_next)
98ceb8ce 2258 {
875c0872
DA
2259 if (!bfd_is_abs_section (hdh_p->sec)
2260 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2261 {
2262 /* Input section has been discarded, either because
2263 it is a copy of a linkonce section or due to
2264 linker script /DISCARD/, so we'll be discarding
2265 the relocs too. */
2266 }
875c0872 2267 else if (hdh_p->count != 0)
ec338859 2268 {
875c0872
DA
2269 srel = elf_section_data (hdh_p->sec)->sreloc;
2270 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2271 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2272 info->flags |= DF_TEXTREL;
ec338859 2273 }
98ceb8ce
AM
2274 }
2275 }
2276
2277 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2278 if (!local_got)
2279 continue;
74d1c347 2280
98ceb8ce 2281 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2282 locsymcount = symtab_hdr->sh_info;
2283 end_local_got = local_got + locsymcount;
9b52905e 2284 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
ce558b89
AM
2285 sec = htab->etab.sgot;
2286 srel = htab->etab.srelgot;
68fb2e56
AM
2287 for (; local_got < end_local_got; ++local_got)
2288 {
2289 if (*local_got > 0)
4dc86686 2290 {
875c0872
DA
2291 *local_got = sec->size;
2292 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2293 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2294 sec->size += 2 * GOT_ENTRY_SIZE;
2295 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2296 sec->size += GOT_ENTRY_SIZE;
0e1862bb 2297 if (bfd_link_pic (info))
9b52905e
NC
2298 {
2299 srel->size += sizeof (Elf32_External_Rela);
2300 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2301 srel->size += 2 * sizeof (Elf32_External_Rela);
2302 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2303 srel->size += sizeof (Elf32_External_Rela);
2304 }
4dc86686 2305 }
68fb2e56
AM
2306 else
2307 *local_got = (bfd_vma) -1;
9b52905e
NC
2308
2309 ++local_tls_type;
68fb2e56 2310 }
74d1c347 2311
68fb2e56
AM
2312 local_plt = end_local_got;
2313 end_local_plt = local_plt + locsymcount;
a63e02c7 2314 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2315 {
2316 /* Won't be used, but be safe. */
2317 for (; local_plt < end_local_plt; ++local_plt)
2318 *local_plt = (bfd_vma) -1;
2319 }
2320 else
2321 {
ce558b89
AM
2322 sec = htab->etab.splt;
2323 srel = htab->etab.srelplt;
74d1c347
AM
2324 for (; local_plt < end_local_plt; ++local_plt)
2325 {
2326 if (*local_plt > 0)
2327 {
875c0872
DA
2328 *local_plt = sec->size;
2329 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2330 if (bfd_link_pic (info))
eea6121a 2331 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2332 }
2333 else
2334 *local_plt = (bfd_vma) -1;
2335 }
2336 }
30667bf3 2337 }
68ffbac6 2338
9b52905e
NC
2339 if (htab->tls_ldm_got.refcount > 0)
2340 {
68ffbac6 2341 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e 2342 R_PARISC_TLS_DTPMOD32 relocs. */
ce558b89
AM
2343 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2344 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2345 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2346 }
2347 else
2348 htab->tls_ldm_got.offset = -1;
30667bf3 2349
e5ee5df1
AM
2350 /* Do all the .plt entries without relocs first. The dynamic linker
2351 uses the last .plt reloc to find the end of the .plt (and hence
2352 the start of the .got) for lazy linking. */
a63e02c7 2353 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2354
98ceb8ce
AM
2355 /* Allocate global sym .plt and .got entries, and space for global
2356 sym dynamic relocs. */
a63e02c7 2357 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2358
2359 /* The check_relocs and adjust_dynamic_symbol entry points have
2360 determined the sizes of the various dynamic sections. Allocate
2361 memory for them. */
b34976b6 2362 relocs = FALSE;
875c0872 2363 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2364 {
875c0872 2365 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2366 continue;
2367
ce558b89 2368 if (sec == htab->etab.splt)
68fb2e56 2369 {
83c81bfe 2370 if (htab->need_plt_stub)
68fb2e56
AM
2371 {
2372 /* Make space for the plt stub at the end of the .plt
2373 section. We want this stub right at the end, up
2374 against the .got section. */
ce558b89 2375 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
875c0872 2376 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2377 bfd_size_type mask;
30667bf3 2378
68fb2e56 2379 if (gotalign > pltalign)
a253d456 2380 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2381 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2382 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2383 }
2384 }
ce558b89 2385 else if (sec == htab->etab.sgot
5474d94f
AM
2386 || sec == htab->etab.sdynbss
2387 || sec == htab->etab.sdynrelro)
68fb2e56 2388 ;
0112cd26 2389 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2390 {
875c0872 2391 if (sec->size != 0)
30667bf3 2392 {
4e12ff7f
AM
2393 /* Remember whether there are any reloc sections other
2394 than .rela.plt. */
ce558b89 2395 if (sec != htab->etab.srelplt)
b34976b6 2396 relocs = TRUE;
47d89dba 2397
30667bf3
AM
2398 /* We use the reloc_count field as a counter if we need
2399 to copy relocs into the output file. */
875c0872 2400 sec->reloc_count = 0;
30667bf3
AM
2401 }
2402 }
30667bf3
AM
2403 else
2404 {
2405 /* It's not one of our sections, so don't allocate space. */
2406 continue;
2407 }
2408
875c0872 2409 if (sec->size == 0)
30667bf3
AM
2410 {
2411 /* If we don't need this section, strip it from the
2412 output file. This is mostly to handle .rela.bss and
2413 .rela.plt. We must create both sections in
2414 create_dynamic_sections, because they must be created
2415 before the linker maps input sections to output
2416 sections. The linker does that before
2417 adjust_dynamic_symbol is called, and it is that
2418 function which decides whether anything needs to go
2419 into these sections. */
875c0872 2420 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2421 continue;
2422 }
2423
c456f082
AM
2424 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2425 continue;
2426
30667bf3
AM
2427 /* Allocate memory for the section contents. Zero it, because
2428 we may not fill in all the reloc sections. */
875c0872 2429 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2430 if (sec->contents == NULL)
b34976b6 2431 return FALSE;
30667bf3
AM
2432 }
2433
a63e02c7 2434 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2435 {
2436 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2437 actually has nothing to do with the PLT, it is how we
2438 communicate the LTP value of a load module to the dynamic
2439 linker. */
dc810e39 2440#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2441 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2442
2443 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2444 return FALSE;
30667bf3
AM
2445
2446 /* Add some entries to the .dynamic section. We fill in the
2447 values later, in elf32_hppa_finish_dynamic_sections, but we
2448 must add the entries now so that we get the correct size for
2449 the .dynamic section. The DT_DEBUG entry is filled in by the
2450 dynamic linker and used by the debugger. */
0e1862bb 2451 if (bfd_link_executable (info))
30667bf3 2452 {
dc810e39 2453 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2454 return FALSE;
30667bf3
AM
2455 }
2456
ce558b89 2457 if (htab->etab.srelplt->size != 0)
30667bf3 2458 {
dc810e39
AM
2459 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2460 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2461 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2462 return FALSE;
30667bf3
AM
2463 }
2464
2465 if (relocs)
2466 {
dc810e39
AM
2467 if (!add_dynamic_entry (DT_RELA, 0)
2468 || !add_dynamic_entry (DT_RELASZ, 0)
2469 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2470 return FALSE;
30667bf3 2471
98ceb8ce
AM
2472 /* If any dynamic relocs apply to a read-only section,
2473 then we need a DT_TEXTREL entry. */
248866a8 2474 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2475 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2476
2477 if ((info->flags & DF_TEXTREL) != 0)
2478 {
2479 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2480 return FALSE;
98ceb8ce 2481 }
30667bf3
AM
2482 }
2483 }
dc810e39 2484#undef add_dynamic_entry
30667bf3 2485
b34976b6 2486 return TRUE;
30667bf3
AM
2487}
2488
30667bf3
AM
2489/* External entry points for sizing and building linker stubs. */
2490
b4655ea9
AM
2491/* Set up various things so that we can make a list of input sections
2492 for each output section included in the link. Returns -1 on error,
cedb70c5 2493 0 when no stubs will be needed, and 1 on success. */
30667bf3 2494
b4655ea9 2495int
c39a58e6 2496elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2497{
2498 bfd *input_bfd;
b4655ea9 2499 unsigned int bfd_count;
7292b3ac 2500 unsigned int top_id, top_index;
30667bf3 2501 asection *section;
25f72752 2502 asection **input_list, **list;
dc810e39 2503 bfd_size_type amt;
b4655ea9 2504 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2505
4dfe6ac6
NC
2506 if (htab == NULL)
2507 return -1;
2508
1badb539
AM
2509 /* Count the number of input BFDs and find the top input section id. */
2510 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2511 input_bfd != NULL;
c72f2fb2 2512 input_bfd = input_bfd->link.next)
30667bf3
AM
2513 {
2514 bfd_count += 1;
25f72752
AM
2515 for (section = input_bfd->sections;
2516 section != NULL;
2517 section = section->next)
2518 {
2519 if (top_id < section->id)
2520 top_id = section->id;
2521 }
30667bf3 2522 }
b4655ea9 2523 htab->bfd_count = bfd_count;
30667bf3 2524
dc810e39 2525 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2526 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2527 if (htab->stub_group == NULL)
b4655ea9 2528 return -1;
1badb539 2529
b4655ea9 2530 /* We can't use output_bfd->section_count here to find the top output
1badb539 2531 section index as some sections may have been removed, and
8423293d 2532 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2533 for (section = output_bfd->sections, top_index = 0;
2534 section != NULL;
2535 section = section->next)
2536 {
2537 if (top_index < section->index)
2538 top_index = section->index;
2539 }
2540
b4655ea9 2541 htab->top_index = top_index;
dc810e39 2542 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2543 input_list = bfd_malloc (amt);
b4655ea9 2544 htab->input_list = input_list;
25f72752 2545 if (input_list == NULL)
b4655ea9 2546 return -1;
25f72752 2547
1badb539
AM
2548 /* For sections we aren't interested in, mark their entries with a
2549 value we can check later. */
2550 list = input_list + top_index;
2551 do
2552 *list = bfd_abs_section_ptr;
2553 while (list-- != input_list);
2554
2555 for (section = output_bfd->sections;
2556 section != NULL;
2557 section = section->next)
2558 {
47d89dba 2559 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2560 input_list[section->index] = NULL;
2561 }
2562
b4655ea9
AM
2563 return 1;
2564}
2565
2566/* The linker repeatedly calls this function for each input section,
2567 in the order that input sections are linked into output sections.
2568 Build lists of input sections to determine groupings between which
2569 we may insert linker stubs. */
2570
2571void
c39a58e6 2572elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2573{
2574 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2575
4dfe6ac6
NC
2576 if (htab == NULL)
2577 return;
2578
b4655ea9 2579 if (isec->output_section->index <= htab->top_index)
25f72752 2580 {
b4655ea9
AM
2581 asection **list = htab->input_list + isec->output_section->index;
2582 if (*list != bfd_abs_section_ptr)
25f72752 2583 {
b4655ea9 2584 /* Steal the link_sec pointer for our list. */
83c81bfe 2585#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2586 /* This happens to make the list in reverse order,
2587 which is what we want. */
2588 PREV_SEC (isec) = *list;
2589 *list = isec;
25f72752
AM
2590 }
2591 }
b4655ea9 2592}
25f72752 2593
b4655ea9
AM
2594/* See whether we can group stub sections together. Grouping stub
2595 sections may result in fewer stubs. More importantly, we need to
2596 put all .init* and .fini* stubs at the beginning of the .init or
2597 .fini output sections respectively, because glibc splits the
2598 _init and _fini functions into multiple parts. Putting a stub in
2599 the middle of a function is not a good idea. */
2600
2601static void
c39a58e6
AM
2602group_sections (struct elf32_hppa_link_hash_table *htab,
2603 bfd_size_type stub_group_size,
2604 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2605{
2606 asection **list = htab->input_list + htab->top_index;
1badb539 2607 do
25f72752
AM
2608 {
2609 asection *tail = *list;
1badb539
AM
2610 if (tail == bfd_abs_section_ptr)
2611 continue;
25f72752
AM
2612 while (tail != NULL)
2613 {
2614 asection *curr;
2615 asection *prev;
2616 bfd_size_type total;
00b28bb0 2617 bfd_boolean big_sec;
25f72752
AM
2618
2619 curr = tail;
eea6121a 2620 total = tail->size;
00b28bb0
AM
2621 big_sec = total >= stub_group_size;
2622
25f72752
AM
2623 while ((prev = PREV_SEC (curr)) != NULL
2624 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2625 < stub_group_size))
25f72752
AM
2626 curr = prev;
2627
2628 /* OK, the size from the start of CURR to the end is less
a248e267 2629 than 240000 bytes and thus can be handled by one stub
25f72752 2630 section. (or the tail section is itself larger than
a248e267 2631 240000 bytes, in which case we may be toast.)
25f72752
AM
2632 We should really be keeping track of the total size of
2633 stubs added here, as stubs contribute to the final output
2634 section size. That's a little tricky, and this way will
a248e267
AM
2635 only break if stubs added total more than 22144 bytes, or
2636 2768 long branch stubs. It seems unlikely for more than
2637 2768 different functions to be called, especially from
2638 code only 240000 bytes long. This limit used to be
2639 250000, but c++ code tends to generate lots of little
2640 functions, and sometimes violated the assumption. */
25f72752
AM
2641 do
2642 {
2643 prev = PREV_SEC (tail);
2644 /* Set up this stub group. */
83c81bfe 2645 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2646 }
2647 while (tail != curr && (tail = prev) != NULL);
2648
a248e267 2649 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2650 bytes before the stub section can be handled by it too.
2651 Don't do this if we have a really large section after the
2652 stubs, as adding more stubs increases the chance that
2653 branches may not reach into the stub section. */
2654 if (!stubs_always_before_branch && !big_sec)
25f72752 2655 {
47d89dba
AM
2656 total = 0;
2657 while (prev != NULL
2658 && ((total += tail->output_offset - prev->output_offset)
2659 < stub_group_size))
2660 {
2661 tail = prev;
2662 prev = PREV_SEC (tail);
83c81bfe 2663 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2664 }
25f72752
AM
2665 }
2666 tail = prev;
2667 }
2668 }
b4655ea9
AM
2669 while (list-- != htab->input_list);
2670 free (htab->input_list);
1badb539 2671#undef PREV_SEC
b4655ea9
AM
2672}
2673
2674/* Read in all local syms for all input bfds, and create hash entries
2675 for export stubs if we are building a multi-subspace shared lib.
2676 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2677
2678static int
c39a58e6 2679get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2680{
2681 unsigned int bfd_indx;
2682 Elf_Internal_Sym *local_syms, **all_local_syms;
2683 int stub_changed = 0;
2684 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2685
4dfe6ac6
NC
2686 if (htab == NULL)
2687 return -1;
2688
30667bf3
AM
2689 /* We want to read in symbol extension records only once. To do this
2690 we need to read in the local symbols in parallel and save them for
2691 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2692 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2693 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2694 htab->all_local_syms = all_local_syms;
30667bf3 2695 if (all_local_syms == NULL)
b4655ea9 2696 return -1;
30667bf3
AM
2697
2698 /* Walk over all the input BFDs, swapping in local symbols.
2699 If we are creating a shared library, create hash entries for the
2700 export stubs. */
b4655ea9 2701 for (bfd_indx = 0;
30667bf3 2702 input_bfd != NULL;
c72f2fb2 2703 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2704 {
2705 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2706
252b5132
RH
2707 /* We'll need the symbol table in a second. */
2708 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2709 if (symtab_hdr->sh_info == 0)
2710 continue;
2711
6cdc0ccc
AM
2712 /* We need an array of the local symbols attached to the input bfd. */
2713 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2714 if (local_syms == NULL)
edd21aca 2715 {
6cdc0ccc
AM
2716 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2717 symtab_hdr->sh_info, 0,
2718 NULL, NULL, NULL);
2719 /* Cache them for elf_link_input_bfd. */
2720 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2721 }
6cdc0ccc
AM
2722 if (local_syms == NULL)
2723 return -1;
edd21aca 2724
6cdc0ccc 2725 all_local_syms[bfd_indx] = local_syms;
edd21aca 2726
0e1862bb 2727 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2728 {
875c0872
DA
2729 struct elf_link_hash_entry **eh_syms;
2730 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2731 unsigned int symcount;
2732
2733 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2734 - symtab_hdr->sh_info);
875c0872
DA
2735 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2736 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2737
2738 /* Look through the global syms for functions; We need to
2739 build export stubs for all globally visible functions. */
875c0872 2740 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2741 {
875c0872 2742 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2743
875c0872 2744 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2745
a63e02c7
DA
2746 while (hh->eh.root.type == bfd_link_hash_indirect
2747 || hh->eh.root.type == bfd_link_hash_warning)
2748 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2749
2750 /* At this point in the link, undefined syms have been
2751 resolved, so we need to check that the symbol was
2752 defined in this BFD. */
a63e02c7
DA
2753 if ((hh->eh.root.type == bfd_link_hash_defined
2754 || hh->eh.root.type == bfd_link_hash_defweak)
2755 && hh->eh.type == STT_FUNC
2756 && hh->eh.root.u.def.section->output_section != NULL
2757 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2758 == output_bfd)
a63e02c7
DA
2759 && hh->eh.root.u.def.section->owner == input_bfd
2760 && hh->eh.def_regular
2761 && !hh->eh.forced_local
2762 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2763 {
2764 asection *sec;
2765 const char *stub_name;
875c0872 2766 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2767
a63e02c7 2768 sec = hh->eh.root.u.def.section;
9b52905e 2769 stub_name = hh_name (hh);
a63e02c7 2770 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2771 stub_name,
b34976b6 2772 FALSE, FALSE);
875c0872 2773 if (hsh == NULL)
30667bf3 2774 {
875c0872
DA
2775 hsh = hppa_add_stub (stub_name, sec, htab);
2776 if (!hsh)
b4655ea9 2777 return -1;
30667bf3 2778
a63e02c7
DA
2779 hsh->target_value = hh->eh.root.u.def.value;
2780 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2781 hsh->stub_type = hppa_stub_export;
a63e02c7 2782 hsh->hh = hh;
30667bf3
AM
2783 stub_changed = 1;
2784 }
2785 else
2786 {
695344c0 2787 /* xgettext:c-format */
4eca0228
AM
2788 _bfd_error_handler (_("%B: duplicate export stub %s"),
2789 input_bfd, stub_name);
30667bf3
AM
2790 }
2791 }
2792 }
30667bf3
AM
2793 }
2794 }
edd21aca 2795
b4655ea9
AM
2796 return stub_changed;
2797}
2798
2799/* Determine and set the size of the stub section for a final link.
2800
2801 The basic idea here is to examine all the relocations looking for
2802 PC-relative calls to a target that is unreachable with a "bl"
2803 instruction. */
2804
b34976b6 2805bfd_boolean
c39a58e6
AM
2806elf32_hppa_size_stubs
2807 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2808 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2809 asection * (*add_stub_section) (const char *, asection *),
2810 void (*layout_sections_again) (void))
b4655ea9
AM
2811{
2812 bfd_size_type stub_group_size;
b34976b6
AM
2813 bfd_boolean stubs_always_before_branch;
2814 bfd_boolean stub_changed;
b4655ea9
AM
2815 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2816
4dfe6ac6
NC
2817 if (htab == NULL)
2818 return FALSE;
2819
b4655ea9
AM
2820 /* Stash our params away. */
2821 htab->stub_bfd = stub_bfd;
2822 htab->multi_subspace = multi_subspace;
2823 htab->add_stub_section = add_stub_section;
2824 htab->layout_sections_again = layout_sections_again;
2825 stubs_always_before_branch = group_size < 0;
2826 if (group_size < 0)
2827 stub_group_size = -group_size;
2828 else
2829 stub_group_size = group_size;
2830 if (stub_group_size == 1)
2831 {
2832 /* Default values. */
acc990f2
AM
2833 if (stubs_always_before_branch)
2834 {
2835 stub_group_size = 7680000;
2836 if (htab->has_17bit_branch || htab->multi_subspace)
2837 stub_group_size = 240000;
2838 if (htab->has_12bit_branch)
2839 stub_group_size = 7500;
2840 }
2841 else
2842 {
2843 stub_group_size = 6971392;
2844 if (htab->has_17bit_branch || htab->multi_subspace)
2845 stub_group_size = 217856;
2846 if (htab->has_12bit_branch)
2847 stub_group_size = 6808;
2848 }
b4655ea9
AM
2849 }
2850
2851 group_sections (htab, stub_group_size, stubs_always_before_branch);
2852
2853 switch (get_local_syms (output_bfd, info->input_bfds, info))
2854 {
2855 default:
2856 if (htab->all_local_syms)
2857 goto error_ret_free_local;
b34976b6 2858 return FALSE;
b4655ea9
AM
2859
2860 case 0:
b34976b6 2861 stub_changed = FALSE;
b4655ea9
AM
2862 break;
2863
2864 case 1:
b34976b6 2865 stub_changed = TRUE;
b4655ea9
AM
2866 break;
2867 }
2868
edd21aca
AM
2869 while (1)
2870 {
b4655ea9
AM
2871 bfd *input_bfd;
2872 unsigned int bfd_indx;
30667bf3
AM
2873 asection *stub_sec;
2874
25f72752 2875 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2876 input_bfd != NULL;
c72f2fb2 2877 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2878 {
2879 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2880 asection *section;
2881 Elf_Internal_Sym *local_syms;
30667bf3
AM
2882
2883 /* We'll need the symbol table in a second. */
2884 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2885 if (symtab_hdr->sh_info == 0)
2886 continue;
2887
b4655ea9 2888 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2889
2890 /* Walk over each section attached to the input bfd. */
2891 for (section = input_bfd->sections;
2892 section != NULL;
25f72752 2893 section = section->next)
30667bf3 2894 {
30667bf3
AM
2895 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2896
2897 /* If there aren't any relocs, then there's nothing more
2898 to do. */
2899 if ((section->flags & SEC_RELOC) == 0
2900 || section->reloc_count == 0)
2901 continue;
2902
25f72752
AM
2903 /* If this section is a link-once section that will be
2904 discarded, then don't create any stubs. */
2905 if (section->output_section == NULL
2906 || section->output_section->owner != output_bfd)
2907 continue;
2908
1e2f5b6e
AM
2909 /* Get the relocs. */
2910 internal_relocs
c39a58e6 2911 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2912 info->keep_memory);
30667bf3 2913 if (internal_relocs == NULL)
1e2f5b6e 2914 goto error_ret_free_local;
30667bf3
AM
2915
2916 /* Now examine each relocation. */
2917 irela = internal_relocs;
2918 irelaend = irela + section->reloc_count;
2919 for (; irela < irelaend; irela++)
2920 {
2921 unsigned int r_type, r_indx;
2922 enum elf32_hppa_stub_type stub_type;
875c0872 2923 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2924 asection *sym_sec;
2925 bfd_vma sym_value;
2926 bfd_vma destination;
875c0872 2927 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2928 char *stub_name;
25f72752 2929 const asection *id_sec;
30667bf3
AM
2930
2931 r_type = ELF32_R_TYPE (irela->r_info);
2932 r_indx = ELF32_R_SYM (irela->r_info);
2933
2934 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2935 {
2936 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2937 error_ret_free_internal:
2938 if (elf_section_data (section)->relocs == NULL)
2939 free (internal_relocs);
2940 goto error_ret_free_local;
30667bf3
AM
2941 }
2942
2943 /* Only look for stubs on call instructions. */
2944 if (r_type != (unsigned int) R_PARISC_PCREL12F
2945 && r_type != (unsigned int) R_PARISC_PCREL17F
2946 && r_type != (unsigned int) R_PARISC_PCREL22F)
2947 continue;
2948
2949 /* Now determine the call target, its name, value,
2950 section. */
2951 sym_sec = NULL;
2952 sym_value = 0;
2953 destination = 0;
875c0872 2954 hh = NULL;
30667bf3
AM
2955 if (r_indx < symtab_hdr->sh_info)
2956 {
2957 /* It's a local symbol. */
2958 Elf_Internal_Sym *sym;
2959 Elf_Internal_Shdr *hdr;
4fbb74a6 2960 unsigned int shndx;
30667bf3
AM
2961
2962 sym = local_syms + r_indx;
30667bf3
AM
2963 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2964 sym_value = sym->st_value;
4fbb74a6
AM
2965 shndx = sym->st_shndx;
2966 if (shndx < elf_numsections (input_bfd))
2967 {
2968 hdr = elf_elfsections (input_bfd)[shndx];
2969 sym_sec = hdr->bfd_section;
2970 destination = (sym_value + irela->r_addend
2971 + sym_sec->output_offset
2972 + sym_sec->output_section->vma);
2973 }
30667bf3
AM
2974 }
2975 else
2976 {
2977 /* It's an external symbol. */
2978 int e_indx;
2979
2980 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2981 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2982
a63e02c7
DA
2983 while (hh->eh.root.type == bfd_link_hash_indirect
2984 || hh->eh.root.type == bfd_link_hash_warning)
2985 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2986
a63e02c7
DA
2987 if (hh->eh.root.type == bfd_link_hash_defined
2988 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2989 {
a63e02c7
DA
2990 sym_sec = hh->eh.root.u.def.section;
2991 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2992 if (sym_sec->output_section != NULL)
2993 destination = (sym_value + irela->r_addend
2994 + sym_sec->output_offset
2995 + sym_sec->output_section->vma);
2996 }
a63e02c7 2997 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 2998 {
0e1862bb 2999 if (! bfd_link_pic (info))
c432ba1a
AM
3000 continue;
3001 }
a63e02c7 3002 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 3003 {
59c2e50f 3004 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 3005 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3006 == STV_DEFAULT)
a63e02c7 3007 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3008 continue;
3009 }
30667bf3
AM
3010 else
3011 {
3012 bfd_set_error (bfd_error_bad_value);
3013 goto error_ret_free_internal;
3014 }
3015 }
3016
3017 /* Determine what (if any) linker stub is needed. */
875c0872 3018 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3019 destination, info);
30667bf3
AM
3020 if (stub_type == hppa_stub_none)
3021 continue;
3022
25f72752 3023 /* Support for grouping stub sections. */
83c81bfe 3024 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3025
30667bf3 3026 /* Get the name of this stub. */
875c0872 3027 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3028 if (!stub_name)
3029 goto error_ret_free_internal;
3030
a63e02c7 3031 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3032 stub_name,
b34976b6 3033 FALSE, FALSE);
875c0872 3034 if (hsh != NULL)
30667bf3
AM
3035 {
3036 /* The proper stub has already been created. */
3037 free (stub_name);
3038 continue;
3039 }
3040
875c0872
DA
3041 hsh = hppa_add_stub (stub_name, section, htab);
3042 if (hsh == NULL)
30667bf3
AM
3043 {
3044 free (stub_name);
1e2f5b6e 3045 goto error_ret_free_internal;
30667bf3
AM
3046 }
3047
875c0872
DA
3048 hsh->target_value = sym_value;
3049 hsh->target_section = sym_sec;
3050 hsh->stub_type = stub_type;
0e1862bb 3051 if (bfd_link_pic (info))
30667bf3
AM
3052 {
3053 if (stub_type == hppa_stub_import)
875c0872 3054 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3055 else if (stub_type == hppa_stub_long_branch)
875c0872 3056 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3057 }
a63e02c7 3058 hsh->hh = hh;
b34976b6 3059 stub_changed = TRUE;
30667bf3
AM
3060 }
3061
3062 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3063 if (elf_section_data (section)->relocs == NULL)
3064 free (internal_relocs);
30667bf3
AM
3065 }
3066 }
3067
3068 if (!stub_changed)
3069 break;
3070
3071 /* OK, we've added some stubs. Find out the new size of the
3072 stub sections. */
83c81bfe 3073 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3074 stub_sec != NULL;
3075 stub_sec = stub_sec->next)
a464198b
AM
3076 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3077 stub_sec->size = 0;
74d1c347 3078
a63e02c7 3079 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3080
30667bf3 3081 /* Ask the linker to do its stuff. */
83c81bfe 3082 (*htab->layout_sections_again) ();
b34976b6 3083 stub_changed = FALSE;
30667bf3
AM
3084 }
3085
6cdc0ccc 3086 free (htab->all_local_syms);
b34976b6 3087 return TRUE;
30667bf3
AM
3088
3089 error_ret_free_local:
b4655ea9 3090 free (htab->all_local_syms);
b34976b6 3091 return FALSE;
30667bf3
AM
3092}
3093
30667bf3
AM
3094/* For a final link, this function is called after we have sized the
3095 stubs to provide a value for __gp. */
3096
b34976b6 3097bfd_boolean
c39a58e6 3098elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3099{
b4655ea9
AM
3100 struct bfd_link_hash_entry *h;
3101 asection *sec = NULL;
3102 bfd_vma gp_val = 0;
83c81bfe 3103 struct elf32_hppa_link_hash_table *htab;
30667bf3 3104
83c81bfe 3105 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3106 if (htab == NULL)
3107 return FALSE;
3108
a63e02c7 3109 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3110
df8634e3 3111 if (h != NULL
b4655ea9
AM
3112 && (h->type == bfd_link_hash_defined
3113 || h->type == bfd_link_hash_defweak))
30667bf3 3114 {
b4655ea9
AM
3115 gp_val = h->u.def.value;
3116 sec = h->u.def.section;
30667bf3
AM
3117 }
3118 else
3119 {
0eddce27
AM
3120 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3121 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3122
74d1c347
AM
3123 /* Choose to point our LTP at, in this order, one of .plt, .got,
3124 or .data, if these sections exist. In the case of choosing
3125 .plt try to make the LTP ideal for addressing anywhere in the
3126 .plt or .got with a 14 bit signed offset. Typically, the end
3127 of the .plt is the start of the .got, so choose .plt + 0x2000
3128 if either the .plt or .got is larger than 0x2000. If both
3129 the .plt and .got are smaller than 0x2000, choose the end of
3130 the .plt section. */
225247f0
JT
3131 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3132 ? NULL : splt;
74d1c347 3133 if (sec != NULL)
30667bf3 3134 {
eea6121a
AM
3135 gp_val = sec->size;
3136 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3137 {
3138 gp_val = 0x2000;
3139 }
3140 }
3141 else
3142 {
b4655ea9 3143 sec = sgot;
74d1c347
AM
3144 if (sec != NULL)
3145 {
225247f0
JT
3146 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3147 {
3148 /* We know we don't have a .plt. If .got is large,
3149 offset our LTP. */
3150 if (sec->size > 0x2000)
3151 gp_val = 0x2000;
3152 }
74d1c347
AM
3153 }
3154 else
3155 {
3156 /* No .plt or .got. Who cares what the LTP is? */
3157 sec = bfd_get_section_by_name (abfd, ".data");
3158 }
30667bf3 3159 }
df8634e3
AM
3160
3161 if (h != NULL)
3162 {
b4655ea9
AM
3163 h->type = bfd_link_hash_defined;
3164 h->u.def.value = gp_val;
df8634e3 3165 if (sec != NULL)
b4655ea9 3166 h->u.def.section = sec;
df8634e3 3167 else
b4655ea9 3168 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3169 }
30667bf3
AM
3170 }
3171
b32b5d6e 3172 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3173 gp_val += sec->output_section->vma + sec->output_offset;
3174
3175 elf_gp (abfd) = gp_val;
b34976b6 3176 return TRUE;
30667bf3
AM
3177}
3178
30667bf3
AM
3179/* Build all the stubs associated with the current output file. The
3180 stubs are kept in a hash table attached to the main linker hash
3181 table. We also set up the .plt entries for statically linked PIC
3182 functions here. This function is called via hppaelf_finish in the
3183 linker. */
3184
b34976b6 3185bfd_boolean
c39a58e6 3186elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3187{
3188 asection *stub_sec;
3189 struct bfd_hash_table *table;
83c81bfe 3190 struct elf32_hppa_link_hash_table *htab;
30667bf3 3191
83c81bfe 3192 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3193 if (htab == NULL)
3194 return FALSE;
30667bf3 3195
83c81bfe 3196 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3197 stub_sec != NULL;
3198 stub_sec = stub_sec->next)
a464198b
AM
3199 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3200 && stub_sec->size != 0)
3201 {
3202 /* Allocate memory to hold the linker stubs. */
3203 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3204 if (stub_sec->contents == NULL)
3205 return FALSE;
3206 stub_sec->size = 0;
3207 }
30667bf3
AM
3208
3209 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3210 table = &htab->bstab;
30667bf3
AM
3211 bfd_hash_traverse (table, hppa_build_one_stub, info);
3212
b34976b6 3213 return TRUE;
30667bf3
AM
3214}
3215
9b52905e 3216/* Return the base vma address which should be subtracted from the real
68ffbac6 3217 address when resolving a dtpoff relocation.
9b52905e
NC
3218 This is PT_TLS segment p_vaddr. */
3219
3220static bfd_vma
3221dtpoff_base (struct bfd_link_info *info)
3222{
3223 /* If tls_sec is NULL, we should have signalled an error already. */
3224 if (elf_hash_table (info)->tls_sec == NULL)
3225 return 0;
3226 return elf_hash_table (info)->tls_sec->vma;
3227}
3228
3229/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3230
3231static bfd_vma
3232tpoff (struct bfd_link_info *info, bfd_vma address)
3233{
3234 struct elf_link_hash_table *htab = elf_hash_table (info);
3235
3236 /* If tls_sec is NULL, we should have signalled an error already. */
3237 if (htab->tls_sec == NULL)
3238 return 0;
68ffbac6 3239 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3240 tcbhead structure which has 2 pointer fields. */
68ffbac6 3241 return (address - htab->tls_sec->vma
9b52905e
NC
3242 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3243}
3244
c46b7515
AM
3245/* Perform a final link. */
3246
b34976b6 3247static bfd_boolean
c39a58e6 3248elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3249{
6d4b2867
JDA
3250 struct stat buf;
3251
4dc86686 3252 /* Invoke the regular ELF linker to do all the work. */
c152c796 3253 if (!bfd_elf_final_link (abfd, info))
b34976b6 3254 return FALSE;
c46b7515
AM
3255
3256 /* If we're producing a final executable, sort the contents of the
985142a4 3257 unwind section. */
0e1862bb 3258 if (bfd_link_relocatable (info))
d9f40817
DA
3259 return TRUE;
3260
6d4b2867
JDA
3261 /* Do not attempt to sort non-regular files. This is here
3262 especially for configure scripts and kernel builds which run
3263 tests with "ld [...] -o /dev/null". */
3264 if (stat (abfd->filename, &buf) != 0
3265 || !S_ISREG(buf.st_mode))
3266 return TRUE;
3267
46fe4e66 3268 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3269}
3270
3271/* Record the lowest address for the data and text segments. */
3272
3273static void
2ea37f1c 3274hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3275{
83c81bfe 3276 struct elf32_hppa_link_hash_table *htab;
c46b7515 3277
875c0872 3278 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3279 if (htab == NULL)
3280 return;
c46b7515
AM
3281
3282 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3283 {
2ea37f1c
NC
3284 bfd_vma value;
3285 Elf_Internal_Phdr *p;
3286
3287 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3288 BFD_ASSERT (p != NULL);
3289 value = p->p_vaddr;
c46b7515
AM
3290
3291 if ((section->flags & SEC_READONLY) != 0)
3292 {
83c81bfe
AM
3293 if (value < htab->text_segment_base)
3294 htab->text_segment_base = value;
c46b7515
AM
3295 }
3296 else
3297 {
83c81bfe
AM
3298 if (value < htab->data_segment_base)
3299 htab->data_segment_base = value;
c46b7515
AM
3300 }
3301 }
3302}
3303
30667bf3
AM
3304/* Perform a relocation as part of a final link. */
3305
3306static bfd_reloc_status_type
c39a58e6
AM
3307final_link_relocate (asection *input_section,
3308 bfd_byte *contents,
875c0872 3309 const Elf_Internal_Rela *rela,
c39a58e6
AM
3310 bfd_vma value,
3311 struct elf32_hppa_link_hash_table *htab,
3312 asection *sym_sec,
875c0872 3313 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3314 struct bfd_link_info *info)
30667bf3
AM
3315{
3316 int insn;
875c0872 3317 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3318 unsigned int orig_r_type = r_type;
30667bf3
AM
3319 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3320 int r_format = howto->bitsize;
3321 enum hppa_reloc_field_selector_type_alt r_field;
3322 bfd *input_bfd = input_section->owner;
875c0872 3323 bfd_vma offset = rela->r_offset;
30667bf3
AM
3324 bfd_vma max_branch_offset = 0;
3325 bfd_byte *hit_data = contents + offset;
875c0872 3326 bfd_signed_vma addend = rela->r_addend;
30667bf3 3327 bfd_vma location;
875c0872 3328 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3329 int val;
30667bf3
AM
3330
3331 if (r_type == R_PARISC_NONE)
3332 return bfd_reloc_ok;
3333
3334 insn = bfd_get_32 (input_bfd, hit_data);
3335
3336 /* Find out where we are and where we're going. */
3337 location = (offset +
3338 input_section->output_offset +
3339 input_section->output_section->vma);
3340
a252afa4
DA
3341 /* If we are not building a shared library, convert DLTIND relocs to
3342 DPREL relocs. */
0e1862bb 3343 if (!bfd_link_pic (info))
a252afa4
DA
3344 {
3345 switch (r_type)
4fc8051d
AM
3346 {
3347 case R_PARISC_DLTIND21L:
143bb599
DA
3348 case R_PARISC_TLS_GD21L:
3349 case R_PARISC_TLS_LDM21L:
3350 case R_PARISC_TLS_IE21L:
4fc8051d 3351 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3352 break;
3353
4fc8051d 3354 case R_PARISC_DLTIND14R:
143bb599
DA
3355 case R_PARISC_TLS_GD14R:
3356 case R_PARISC_TLS_LDM14R:
3357 case R_PARISC_TLS_IE14R:
4fc8051d 3358 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3359 break;
3360
4fc8051d
AM
3361 case R_PARISC_DLTIND14F:
3362 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3363 break;
3364 }
3365 }
3366
30667bf3
AM
3367 switch (r_type)
3368 {
3369 case R_PARISC_PCREL12F:
3370 case R_PARISC_PCREL17F:
3371 case R_PARISC_PCREL22F:
067fa4a6
AM
3372 /* If this call should go via the plt, find the import stub in
3373 the stub hash. */
30667bf3
AM
3374 if (sym_sec == NULL
3375 || sym_sec->output_section == NULL
875c0872 3376 || (hh != NULL
a63e02c7
DA
3377 && hh->eh.plt.offset != (bfd_vma) -1
3378 && hh->eh.dynindx != -1
875c0872 3379 && !hh->plabel
0e1862bb 3380 && (bfd_link_pic (info)
a63e02c7
DA
3381 || !hh->eh.def_regular
3382 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3383 {
875c0872
DA
3384 hsh = hppa_get_stub_entry (input_section, sym_sec,
3385 hh, rela, htab);
3386 if (hsh != NULL)
30667bf3 3387 {
875c0872
DA
3388 value = (hsh->stub_offset
3389 + hsh->stub_sec->output_offset
3390 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3391 addend = 0;
3392 }
875c0872 3393 else if (sym_sec == NULL && hh != NULL
a63e02c7 3394 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3395 {
db20fd76
AM
3396 /* It's OK if undefined weak. Calls to undefined weak
3397 symbols behave as if the "called" function
3398 immediately returns. We can thus call to a weak
3399 function without first checking whether the function
3400 is defined. */
30667bf3 3401 value = location;
db20fd76 3402 addend = 8;
30667bf3
AM
3403 }
3404 else
f09ebc7d 3405 return bfd_reloc_undefined;
30667bf3
AM
3406 }
3407 /* Fall thru. */
3408
3409 case R_PARISC_PCREL21L:
3410 case R_PARISC_PCREL17C:
3411 case R_PARISC_PCREL17R:
3412 case R_PARISC_PCREL14R:
3413 case R_PARISC_PCREL14F:
36751eee 3414 case R_PARISC_PCREL32:
30667bf3
AM
3415 /* Make it a pc relative offset. */
3416 value -= location;
3417 addend -= 8;
3418 break;
3419
3420 case R_PARISC_DPREL21L:
3421 case R_PARISC_DPREL14R:
3422 case R_PARISC_DPREL14F:
a252afa4
DA
3423 /* Convert instructions that use the linkage table pointer (r19) to
3424 instructions that use the global data pointer (dp). This is the
3425 most efficient way of using PIC code in an incomplete executable,
3426 but the user must follow the standard runtime conventions for
3427 accessing data for this to work. */
143bb599 3428 if (orig_r_type != r_type)
a252afa4 3429 {
143bb599
DA
3430 if (r_type == R_PARISC_DPREL21L)
3431 {
3432 /* GCC sometimes uses a register other than r19 for the
3433 operation, so we must convert any addil instruction
3434 that uses this relocation. */
3435 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3436 insn = ADDIL_DP;
3437 else
3438 /* We must have a ldil instruction. It's too hard to find
3439 and convert the associated add instruction, so issue an
3440 error. */
4eca0228 3441 _bfd_error_handler
695344c0 3442 /* xgettext:c-format */
143bb599
DA
3443 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3444 input_bfd,
3445 input_section,
3446 (long) offset,
3447 howto->name,
3448 insn);
3449 }
3450 else if (r_type == R_PARISC_DPREL14F)
3451 {
3452 /* This must be a format 1 load/store. Change the base
3453 register to dp. */
3454 insn = (insn & 0xfc1ffff) | (27 << 21);
3455 }
a252afa4
DA
3456 }
3457
143bb599
DA
3458 /* For all the DP relative relocations, we need to examine the symbol's
3459 section. If it has no section or if it's a code section, then
3460 "data pointer relative" makes no sense. In that case we don't
3461 adjust the "value", and for 21 bit addil instructions, we change the
3462 source addend register from %dp to %r0. This situation commonly
3463 arises for undefined weak symbols and when a variable's "constness"
3464 is declared differently from the way the variable is defined. For
3465 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3466 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3467 {
3468 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3469 == (((int) OP_ADDIL << 26) | (27 << 21)))
3470 {
3471 insn &= ~ (0x1f << 21);
30667bf3
AM
3472 }
3473 /* Now try to make things easy for the dynamic linker. */
3474
3475 break;
3476 }
74d1c347 3477 /* Fall thru. */
30667bf3
AM
3478
3479 case R_PARISC_DLTIND21L:
3480 case R_PARISC_DLTIND14R:
3481 case R_PARISC_DLTIND14F:
143bb599
DA
3482 case R_PARISC_TLS_GD21L:
3483 case R_PARISC_TLS_LDM21L:
3484 case R_PARISC_TLS_IE21L:
9b52905e 3485 case R_PARISC_TLS_GD14R:
9b52905e 3486 case R_PARISC_TLS_LDM14R:
9b52905e 3487 case R_PARISC_TLS_IE14R:
30667bf3
AM
3488 value -= elf_gp (input_section->output_section->owner);
3489 break;
3490
c46b7515
AM
3491 case R_PARISC_SEGREL32:
3492 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3493 value -= htab->text_segment_base;
c46b7515 3494 else
83c81bfe 3495 value -= htab->data_segment_base;
c46b7515
AM
3496 break;
3497
30667bf3
AM
3498 default:
3499 break;
3500 }
3501
3502 switch (r_type)
3503 {
3504 case R_PARISC_DIR32:
47d89dba 3505 case R_PARISC_DIR14F:
30667bf3
AM
3506 case R_PARISC_DIR17F:
3507 case R_PARISC_PCREL17C:
3508 case R_PARISC_PCREL14F:
36751eee 3509 case R_PARISC_PCREL32:
30667bf3
AM
3510 case R_PARISC_DPREL14F:
3511 case R_PARISC_PLABEL32:
3512 case R_PARISC_DLTIND14F:
3513 case R_PARISC_SEGBASE:
3514 case R_PARISC_SEGREL32:
9b52905e
NC
3515 case R_PARISC_TLS_DTPMOD32:
3516 case R_PARISC_TLS_DTPOFF32:
3517 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3518 r_field = e_fsel;
3519 break;
3520
1bf42538 3521 case R_PARISC_DLTIND21L:
30667bf3 3522 case R_PARISC_PCREL21L:
30667bf3 3523 case R_PARISC_PLABEL21L:
1bf42538
JL
3524 r_field = e_lsel;
3525 break;
3526
3527 case R_PARISC_DIR21L:
3528 case R_PARISC_DPREL21L:
9b52905e
NC
3529 case R_PARISC_TLS_GD21L:
3530 case R_PARISC_TLS_LDM21L:
3531 case R_PARISC_TLS_LDO21L:
3532 case R_PARISC_TLS_IE21L:
3533 case R_PARISC_TLS_LE21L:
30667bf3
AM
3534 r_field = e_lrsel;
3535 break;
3536
30667bf3 3537 case R_PARISC_PCREL17R:
30667bf3 3538 case R_PARISC_PCREL14R:
30667bf3
AM
3539 case R_PARISC_PLABEL14R:
3540 case R_PARISC_DLTIND14R:
1bf42538
JL
3541 r_field = e_rsel;
3542 break;
3543
3544 case R_PARISC_DIR17R:
3545 case R_PARISC_DIR14R:
3546 case R_PARISC_DPREL14R:
9b52905e
NC
3547 case R_PARISC_TLS_GD14R:
3548 case R_PARISC_TLS_LDM14R:
3549 case R_PARISC_TLS_LDO14R:
3550 case R_PARISC_TLS_IE14R:
3551 case R_PARISC_TLS_LE14R:
30667bf3
AM
3552 r_field = e_rrsel;
3553 break;
3554
3555 case R_PARISC_PCREL12F:
3556 case R_PARISC_PCREL17F:
3557 case R_PARISC_PCREL22F:
3558 r_field = e_fsel;
3559
3560 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3561 {
3562 max_branch_offset = (1 << (17-1)) << 2;
3563 }
3564 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3565 {
3566 max_branch_offset = (1 << (12-1)) << 2;
3567 }
3568 else
3569 {
3570 max_branch_offset = (1 << (22-1)) << 2;
3571 }
3572
3573 /* sym_sec is NULL on undefined weak syms or when shared on
3574 undefined syms. We've already checked for a stub for the
3575 shared undefined case. */
3576 if (sym_sec == NULL)
3577 break;
3578
3579 /* If the branch is out of reach, then redirect the
3580 call to the local stub for this function. */
3581 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3582 {
875c0872
DA
3583 hsh = hppa_get_stub_entry (input_section, sym_sec,
3584 hh, rela, htab);
3585 if (hsh == NULL)
f09ebc7d 3586 return bfd_reloc_undefined;
30667bf3
AM
3587
3588 /* Munge up the value and addend so that we call the stub
3589 rather than the procedure directly. */
875c0872
DA
3590 value = (hsh->stub_offset
3591 + hsh->stub_sec->output_offset
3592 + hsh->stub_sec->output_section->vma
30667bf3
AM
3593 - location);
3594 addend = -8;
3595 }
3596 break;
3597
3598 /* Something we don't know how to handle. */
3599 default:
3600 return bfd_reloc_notsupported;
3601 }
3602
3603 /* Make sure we can reach the stub. */
3604 if (max_branch_offset != 0
3605 && value + addend + max_branch_offset >= 2*max_branch_offset)
3606 {
4eca0228 3607 _bfd_error_handler
695344c0 3608 /* xgettext:c-format */
d003868e
AM
3609 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3610 input_bfd,
3611 input_section,
d1fa68d3 3612 (long) offset,
a63e02c7 3613 hsh->bh_root.string);
ce757d15 3614 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3615 return bfd_reloc_notsupported;
3616 }
3617
3618 val = hppa_field_adjust (value, addend, r_field);
3619
3620 switch (r_type)
3621 {
3622 case R_PARISC_PCREL12F:
3623 case R_PARISC_PCREL17C:
3624 case R_PARISC_PCREL17F:
3625 case R_PARISC_PCREL17R:
3626 case R_PARISC_PCREL22F:
3627 case R_PARISC_DIR17F:
3628 case R_PARISC_DIR17R:
3629 /* This is a branch. Divide the offset by four.
3630 Note that we need to decide whether it's a branch or
3631 otherwise by inspecting the reloc. Inspecting insn won't
3632 work as insn might be from a .word directive. */
3633 val >>= 2;
3634 break;
3635
3636 default:
3637 break;
3638 }
3639
3640 insn = hppa_rebuild_insn (insn, val, r_format);
3641
3642 /* Update the instruction word. */
74d1c347 3643 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3644 return bfd_reloc_ok;
3645}
3646
30667bf3
AM
3647/* Relocate an HPPA ELF section. */
3648
b34976b6 3649static bfd_boolean
c39a58e6
AM
3650elf32_hppa_relocate_section (bfd *output_bfd,
3651 struct bfd_link_info *info,
3652 bfd *input_bfd,
3653 asection *input_section,
3654 bfd_byte *contents,
3655 Elf_Internal_Rela *relocs,
3656 Elf_Internal_Sym *local_syms,
3657 asection **local_sections)
30667bf3 3658{
30667bf3 3659 bfd_vma *local_got_offsets;
83c81bfe 3660 struct elf32_hppa_link_hash_table *htab;
30667bf3 3661 Elf_Internal_Shdr *symtab_hdr;
875c0872 3662 Elf_Internal_Rela *rela;
30667bf3 3663 Elf_Internal_Rela *relend;
30667bf3
AM
3664
3665 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3666
83c81bfe 3667 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3668 if (htab == NULL)
3669 return FALSE;
3670
74d1c347 3671 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3672
875c0872 3673 rela = relocs;
30667bf3 3674 relend = relocs + input_section->reloc_count;
875c0872 3675 for (; rela < relend; rela++)
30667bf3
AM
3676 {
3677 unsigned int r_type;
3678 reloc_howto_type *howto;
3679 unsigned int r_symndx;
875c0872 3680 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3681 Elf_Internal_Sym *sym;
3682 asection *sym_sec;
3683 bfd_vma relocation;
875c0872 3684 bfd_reloc_status_type rstatus;
30667bf3 3685 const char *sym_name;
b34976b6
AM
3686 bfd_boolean plabel;
3687 bfd_boolean warned_undef;
30667bf3 3688
875c0872 3689 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3690 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3691 {
3692 bfd_set_error (bfd_error_bad_value);
b34976b6 3693 return FALSE;
30667bf3
AM
3694 }
3695 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3696 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3697 continue;
3698
875c0872
DA
3699 r_symndx = ELF32_R_SYM (rela->r_info);
3700 hh = NULL;
30667bf3
AM
3701 sym = NULL;
3702 sym_sec = NULL;
b34976b6 3703 warned_undef = FALSE;
30667bf3
AM
3704 if (r_symndx < symtab_hdr->sh_info)
3705 {
3706 /* This is a local symbol, h defaults to NULL. */
3707 sym = local_syms + r_symndx;
3708 sym_sec = local_sections[r_symndx];
875c0872 3709 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3710 }
3711 else
3712 {
875c0872 3713 struct elf_link_hash_entry *eh;
62d887d4 3714 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3715 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3716
875c0872 3717 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3718 r_symndx, symtab_hdr, sym_hashes,
875c0872 3719 eh, sym_sec, relocation,
62d887d4
L
3720 unresolved_reloc, warned_undef,
3721 ignored);
560e09e9 3722
0e1862bb 3723 if (!bfd_link_relocatable (info)
ab96bf03 3724 && relocation == 0
875c0872
DA
3725 && eh->root.type != bfd_link_hash_defined
3726 && eh->root.type != bfd_link_hash_defweak
3727 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3728 {
59c2e50f 3729 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3730 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3731 && eh->type == STT_PARISC_MILLI)
560e09e9 3732 {
1a72702b
AM
3733 (*info->callbacks->undefined_symbol)
3734 (info, eh_name (eh), input_bfd,
3735 input_section, rela->r_offset, FALSE);
560e09e9
NC
3736 warned_undef = TRUE;
3737 }
30667bf3 3738 }
875c0872 3739 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3740 }
3741
dbaa2011 3742 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3743 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3744 rela, 1, relend,
3745 elf_hppa_howto_table + r_type, 0,
e4067dbb 3746 contents);
ab96bf03 3747
0e1862bb 3748 if (bfd_link_relocatable (info))
ab96bf03
AM
3749 continue;
3750
30667bf3 3751 /* Do any required modifications to the relocation value, and
25f72752
AM
3752 determine what types of dynamic info we need to output, if
3753 any. */
74d1c347 3754 plabel = 0;
30667bf3
AM
3755 switch (r_type)
3756 {
3757 case R_PARISC_DLTIND14F:
3758 case R_PARISC_DLTIND14R:
3759 case R_PARISC_DLTIND21L:
ce757d15
AM
3760 {
3761 bfd_vma off;
b34976b6 3762 bfd_boolean do_got = 0;
ce757d15
AM
3763
3764 /* Relocation is to the entry for this symbol in the
3765 global offset table. */
875c0872 3766 if (hh != NULL)
ce757d15 3767 {
b34976b6 3768 bfd_boolean dyn;
ce757d15 3769
a63e02c7
DA
3770 off = hh->eh.got.offset;
3771 dyn = htab->etab.dynamic_sections_created;
0e1862bb
L
3772 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3773 bfd_link_pic (info),
a63e02c7 3774 &hh->eh))
ce757d15
AM
3775 {
3776 /* If we aren't going to call finish_dynamic_symbol,
3777 then we need to handle initialisation of the .got
3778 entry and create needed relocs here. Since the
3779 offset must always be a multiple of 4, we use the
3780 least significant bit to record whether we have
3781 initialised it already. */
3782 if ((off & 1) != 0)
3783 off &= ~1;
3784 else
3785 {
a63e02c7 3786 hh->eh.got.offset |= 1;
ce757d15
AM
3787 do_got = 1;
3788 }
3789 }
3790 }
3791 else
3792 {
3793 /* Local symbol case. */
3794 if (local_got_offsets == NULL)
3795 abort ();
3796
3797 off = local_got_offsets[r_symndx];
3798
3799 /* The offset must always be a multiple of 4. We use
3800 the least significant bit to record whether we have
3801 already generated the necessary reloc. */
3802 if ((off & 1) != 0)
3803 off &= ~1;
3804 else
3805 {
3806 local_got_offsets[r_symndx] |= 1;
3807 do_got = 1;
3808 }
3809 }
68fb2e56 3810
ce757d15
AM
3811 if (do_got)
3812 {
0e1862bb 3813 if (bfd_link_pic (info))
ce757d15
AM
3814 {
3815 /* Output a dynamic relocation for this GOT entry.
3816 In this case it is relative to the base of the
3817 object because the symbol index is zero. */
3818 Elf_Internal_Rela outrel;
947216bf 3819 bfd_byte *loc;
ce558b89 3820 asection *sec = htab->etab.srelgot;
ce757d15
AM
3821
3822 outrel.r_offset = (off
ce558b89
AM
3823 + htab->etab.sgot->output_offset
3824 + htab->etab.sgot->output_section->vma);
ce757d15
AM
3825 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3826 outrel.r_addend = relocation;
875c0872
DA
3827 loc = sec->contents;
3828 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3829 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3830 }
3831 else
30667bf3 3832 bfd_put_32 (output_bfd, relocation,
ce558b89 3833 htab->etab.sgot->contents + off);
ce757d15 3834 }
30667bf3 3835
ce757d15
AM
3836 if (off >= (bfd_vma) -2)
3837 abort ();
30667bf3 3838
ce757d15
AM
3839 /* Add the base of the GOT to the relocation value. */
3840 relocation = (off
ce558b89
AM
3841 + htab->etab.sgot->output_offset
3842 + htab->etab.sgot->output_section->vma);
ce757d15 3843 }
30667bf3 3844 break;
252b5132 3845
c46b7515
AM
3846 case R_PARISC_SEGREL32:
3847 /* If this is the first SEGREL relocation, then initialize
3848 the segment base values. */
83c81bfe
AM
3849 if (htab->text_segment_base == (bfd_vma) -1)
3850 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3851 break;
3852
30667bf3
AM
3853 case R_PARISC_PLABEL14R:
3854 case R_PARISC_PLABEL21L:
3855 case R_PARISC_PLABEL32:
a63e02c7 3856 if (htab->etab.dynamic_sections_created)
252b5132 3857 {
ce757d15 3858 bfd_vma off;
b34976b6 3859 bfd_boolean do_plt = 0;
74d1c347
AM
3860 /* If we have a global symbol with a PLT slot, then
3861 redirect this relocation to it. */
875c0872 3862 if (hh != NULL)
74d1c347 3863 {
a63e02c7 3864 off = hh->eh.plt.offset;
0e1862bb
L
3865 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3866 bfd_link_pic (info),
a63e02c7 3867 &hh->eh))
8dea1268
AM
3868 {
3869 /* In a non-shared link, adjust_dynamic_symbols
3870 isn't called for symbols forced local. We
dc810e39 3871 need to write out the plt entry here. */
8dea1268
AM
3872 if ((off & 1) != 0)
3873 off &= ~1;
3874 else
3875 {
a63e02c7 3876 hh->eh.plt.offset |= 1;
ce757d15 3877 do_plt = 1;
8dea1268
AM
3878 }
3879 }
74d1c347
AM
3880 }
3881 else
3882 {
68fb2e56
AM
3883 bfd_vma *local_plt_offsets;
3884
3885 if (local_got_offsets == NULL)
3886 abort ();
74d1c347 3887
68fb2e56
AM
3888 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3889 off = local_plt_offsets[r_symndx];
74d1c347
AM
3890
3891 /* As for the local .got entry case, we use the last
3892 bit to record whether we've already initialised
3893 this local .plt entry. */
3894 if ((off & 1) != 0)
3895 off &= ~1;
ce757d15
AM
3896 else
3897 {
3898 local_plt_offsets[r_symndx] |= 1;
3899 do_plt = 1;
3900 }
3901 }
3902
3903 if (do_plt)
3904 {
0e1862bb 3905 if (bfd_link_pic (info))
ce757d15
AM
3906 {
3907 /* Output a dynamic IPLT relocation for this
3908 PLT entry. */
3909 Elf_Internal_Rela outrel;
947216bf 3910 bfd_byte *loc;
ce558b89 3911 asection *s = htab->etab.srelplt;
ce757d15
AM
3912
3913 outrel.r_offset = (off
ce558b89
AM
3914 + htab->etab.splt->output_offset
3915 + htab->etab.splt->output_section->vma);
ce757d15
AM
3916 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3917 outrel.r_addend = relocation;
947216bf
AM
3918 loc = s->contents;
3919 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3920 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3921 }
74d1c347
AM
3922 else
3923 {
3924 bfd_put_32 (output_bfd,
3925 relocation,
ce558b89 3926 htab->etab.splt->contents + off);
74d1c347 3927 bfd_put_32 (output_bfd,
ce558b89
AM
3928 elf_gp (htab->etab.splt->output_section->owner),
3929 htab->etab.splt->contents + off + 4);
74d1c347
AM
3930 }
3931 }
3932
68fb2e56 3933 if (off >= (bfd_vma) -2)
49e9d0d3 3934 abort ();
74d1c347
AM
3935
3936 /* PLABELs contain function pointers. Relocation is to
3937 the entry for the function in the .plt. The magic +2
3938 offset signals to $$dyncall that the function pointer
3939 is in the .plt and thus has a gp pointer too.
3940 Exception: Undefined PLABELs should have a value of
3941 zero. */
875c0872 3942 if (hh == NULL
a63e02c7
DA
3943 || (hh->eh.root.type != bfd_link_hash_undefweak
3944 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3945 {
3946 relocation = (off
ce558b89
AM
3947 + htab->etab.splt->output_offset
3948 + htab->etab.splt->output_section->vma
74d1c347
AM
3949 + 2);
3950 }
3951 plabel = 1;
30667bf3 3952 }
1a0670f3 3953 /* Fall through. */
30667bf3
AM
3954
3955 case R_PARISC_DIR17F:
3956 case R_PARISC_DIR17R:
47d89dba 3957 case R_PARISC_DIR14F:
30667bf3
AM
3958 case R_PARISC_DIR14R:
3959 case R_PARISC_DIR21L:
3960 case R_PARISC_DPREL14F:
3961 case R_PARISC_DPREL14R:
3962 case R_PARISC_DPREL21L:
3963 case R_PARISC_DIR32:
b1e24c02 3964 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3965 break;
3966
30667bf3 3967 /* The reloc types handled here and this conditional
56882138 3968 expression must match the code in ..check_relocs and
ec338859 3969 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3970 as in ..check_relocs, with some extra conditions (dynindx
3971 test in this case) to cater for relocs removed by
ec338859 3972 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3973 here does indeed match the one in ..check_relocs, the
3974 difference being that here we test DEF_DYNAMIC as well as
3975 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3976 which is why we can't use just that test here.
3977 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3978 there all files have not been loaded. */
0e1862bb 3979 if ((bfd_link_pic (info)
875c0872 3980 && (hh == NULL
a63e02c7
DA
3981 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3982 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3983 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3984 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
0e1862bb 3985 || (!bfd_link_pic (info)
875c0872 3986 && hh != NULL
a63e02c7
DA
3987 && hh->eh.dynindx != -1
3988 && !hh->eh.non_got_ref
4fc8051d 3989 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3990 && hh->eh.def_dynamic
3991 && !hh->eh.def_regular)
3992 || hh->eh.root.type == bfd_link_hash_undefweak
3993 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3994 {
3995 Elf_Internal_Rela outrel;
b34976b6 3996 bfd_boolean skip;
98ceb8ce 3997 asection *sreloc;
947216bf 3998 bfd_byte *loc;
252b5132 3999
30667bf3
AM
4000 /* When generating a shared object, these relocations
4001 are copied into the output file to be resolved at run
4002 time. */
252b5132 4003
875c0872 4004 outrel.r_addend = rela->r_addend;
c629eae0
JJ
4005 outrel.r_offset =
4006 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 4007 rela->r_offset);
0bb2d96a
JJ
4008 skip = (outrel.r_offset == (bfd_vma) -1
4009 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
4010 outrel.r_offset += (input_section->output_offset
4011 + input_section->output_section->vma);
68ffbac6 4012
30667bf3 4013 if (skip)
252b5132 4014 {
30667bf3 4015 memset (&outrel, 0, sizeof (outrel));
252b5132 4016 }
875c0872 4017 else if (hh != NULL
a63e02c7 4018 && hh->eh.dynindx != -1
74d1c347 4019 && (plabel
446f2863 4020 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 4021 || !bfd_link_pic (info)
a496fbc8 4022 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 4023 || !hh->eh.def_regular))
252b5132 4024 {
a63e02c7 4025 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4026 }
4027 else /* It's a local symbol, or one marked to become local. */
4028 {
4029 int indx = 0;
edd21aca 4030
30667bf3
AM
4031 /* Add the absolute offset of the symbol. */
4032 outrel.r_addend += relocation;
edd21aca 4033
74d1c347
AM
4034 /* Global plabels need to be processed by the
4035 dynamic linker so that functions have at most one
4036 fptr. For this reason, we need to differentiate
4037 between global and local plabels, which we do by
4038 providing the function symbol for a global plabel
4039 reloc, and no symbol for local plabels. */
4040 if (! plabel
4041 && sym_sec != NULL
30667bf3
AM
4042 && sym_sec->output_section != NULL
4043 && ! bfd_is_abs_section (sym_sec))
252b5132 4044 {
74541ad4
AM
4045 asection *osec;
4046
4047 osec = sym_sec->output_section;
4048 indx = elf_section_data (osec)->dynindx;
4049 if (indx == 0)
4050 {
4051 osec = htab->etab.text_index_section;
4052 indx = elf_section_data (osec)->dynindx;
4053 }
4054 BFD_ASSERT (indx != 0);
4b71bec0 4055
30667bf3
AM
4056 /* We are turning this relocation into one
4057 against a section symbol, so subtract out the
4058 output section's address but not the offset
4059 of the input section in the output section. */
74541ad4 4060 outrel.r_addend -= osec->vma;
252b5132 4061 }
252b5132 4062
30667bf3
AM
4063 outrel.r_info = ELF32_R_INFO (indx, r_type);
4064 }
98ceb8ce
AM
4065 sreloc = elf_section_data (input_section)->sreloc;
4066 if (sreloc == NULL)
4067 abort ();
4068
947216bf
AM
4069 loc = sreloc->contents;
4070 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4071 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4072 }
4073 break;
68ffbac6 4074
9b52905e
NC
4075 case R_PARISC_TLS_LDM21L:
4076 case R_PARISC_TLS_LDM14R:
4077 {
4078 bfd_vma off;
68ffbac6 4079
9b52905e
NC
4080 off = htab->tls_ldm_got.offset;
4081 if (off & 1)
4082 off &= ~1;
4083 else
4084 {
4085 Elf_Internal_Rela outrel;
4086 bfd_byte *loc;
4087
68ffbac6 4088 outrel.r_offset = (off
ce558b89
AM
4089 + htab->etab.sgot->output_section->vma
4090 + htab->etab.sgot->output_offset);
9b52905e
NC
4091 outrel.r_addend = 0;
4092 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
ce558b89
AM
4093 loc = htab->etab.srelgot->contents;
4094 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
9b52905e
NC
4095
4096 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4097 htab->tls_ldm_got.offset |= 1;
4098 }
4099
4100 /* Add the base of the GOT to the relocation value. */
4101 relocation = (off
ce558b89
AM
4102 + htab->etab.sgot->output_offset
4103 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4104
4105 break;
4106 }
4107
4108 case R_PARISC_TLS_LDO21L:
4109 case R_PARISC_TLS_LDO14R:
4110 relocation -= dtpoff_base (info);
4111 break;
4112
4113 case R_PARISC_TLS_GD21L:
4114 case R_PARISC_TLS_GD14R:
4115 case R_PARISC_TLS_IE21L:
4116 case R_PARISC_TLS_IE14R:
4117 {
4118 bfd_vma off;
4119 int indx;
4120 char tls_type;
4121
4122 indx = 0;
4123 if (hh != NULL)
4124 {
4125 bfd_boolean dyn;
4126 dyn = htab->etab.dynamic_sections_created;
4127
0e1862bb
L
4128 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4129 bfd_link_pic (info),
4130 &hh->eh)
4131 && (!bfd_link_pic (info)
9b52905e
NC
4132 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4133 {
4134 indx = hh->eh.dynindx;
4135 }
4136 off = hh->eh.got.offset;
4137 tls_type = hh->tls_type;
4138 }
4139 else
4140 {
4141 off = local_got_offsets[r_symndx];
4142 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4143 }
4144
4145 if (tls_type == GOT_UNKNOWN)
4146 abort ();
4147
4148 if ((off & 1) != 0)
4149 off &= ~1;
4150 else
4151 {
4152 bfd_boolean need_relocs = FALSE;
4153 Elf_Internal_Rela outrel;
4154 bfd_byte *loc = NULL;
4155 int cur_off = off;
4156
4157 /* The GOT entries have not been initialized yet. Do it
4158 now, and emit any relocations. If both an IE GOT and a
4159 GD GOT are necessary, we emit the GD first. */
4160
0e1862bb 4161 if ((bfd_link_pic (info) || indx != 0)
9b52905e
NC
4162 && (hh == NULL
4163 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4164 || hh->eh.root.type != bfd_link_hash_undefweak))
4165 {
4166 need_relocs = TRUE;
ce558b89 4167 loc = htab->etab.srelgot->contents;
9b52905e 4168 /* FIXME (CAO): Should this be reloc_count++ ? */
ce558b89 4169 loc += htab->etab.srelgot->reloc_count * sizeof (Elf32_External_Rela);
9b52905e
NC
4170 }
4171
4172 if (tls_type & GOT_TLS_GD)
4173 {
4174 if (need_relocs)
4175 {
4176 outrel.r_offset = (cur_off
ce558b89
AM
4177 + htab->etab.sgot->output_section->vma
4178 + htab->etab.sgot->output_offset);
9b52905e
NC
4179 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4180 outrel.r_addend = 0;
ce558b89 4181 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + cur_off);
9b52905e 4182 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4183 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4184 loc += sizeof (Elf32_External_Rela);
4185
4186 if (indx == 0)
4187 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4188 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4189 else
4190 {
4191 bfd_put_32 (output_bfd, 0,
ce558b89 4192 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4193 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4194 outrel.r_offset += 4;
4195 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
ce558b89 4196 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4197 loc += sizeof (Elf32_External_Rela);
4198 }
4199 }
4200 else
4201 {
4202 /* If we are not emitting relocations for a
4203 general dynamic reference, then we must be in a
4204 static link or an executable link with the
4205 symbol binding locally. Mark it as belonging
4206 to module 1, the executable. */
4207 bfd_put_32 (output_bfd, 1,
ce558b89 4208 htab->etab.sgot->contents + cur_off);
9b52905e 4209 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4210 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4211 }
4212
4213
4214 cur_off += 8;
4215 }
4216
4217 if (tls_type & GOT_TLS_IE)
4218 {
4219 if (need_relocs)
4220 {
4221 outrel.r_offset = (cur_off
ce558b89
AM
4222 + htab->etab.sgot->output_section->vma
4223 + htab->etab.sgot->output_offset);
9b52905e
NC
4224 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4225
4226 if (indx == 0)
4227 outrel.r_addend = relocation - dtpoff_base (info);
4228 else
4229 outrel.r_addend = 0;
4230
4231 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4232 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4233 loc += sizeof (Elf32_External_Rela);
4234 }
4235 else
4236 bfd_put_32 (output_bfd, tpoff (info, relocation),
ce558b89 4237 htab->etab.sgot->contents + cur_off);
9b52905e
NC
4238
4239 cur_off += 4;
4240 }
4241
4242 if (hh != NULL)
4243 hh->eh.got.offset |= 1;
4244 else
4245 local_got_offsets[r_symndx] |= 1;
4246 }
4247
4248 if ((tls_type & GOT_TLS_GD)
4249 && r_type != R_PARISC_TLS_GD21L
4250 && r_type != R_PARISC_TLS_GD14R)
4251 off += 2 * GOT_ENTRY_SIZE;
4252
4253 /* Add the base of the GOT to the relocation value. */
4254 relocation = (off
ce558b89
AM
4255 + htab->etab.sgot->output_offset
4256 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4257
4258 break;
4259 }
4260
4261 case R_PARISC_TLS_LE21L:
4262 case R_PARISC_TLS_LE14R:
4263 {
4264 relocation = tpoff (info, relocation);
4265 break;
4266 }
4267 break;
edd21aca 4268
30667bf3
AM
4269 default:
4270 break;
4271 }
252b5132 4272
875c0872
DA
4273 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4274 htab, sym_sec, hh, info);
252b5132 4275
875c0872 4276 if (rstatus == bfd_reloc_ok)
30667bf3 4277 continue;
252b5132 4278
875c0872 4279 if (hh != NULL)
9b52905e 4280 sym_name = hh_name (hh);
30667bf3
AM
4281 else
4282 {
4283 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4284 symtab_hdr->sh_link,
4285 sym->st_name);
4286 if (sym_name == NULL)
b34976b6 4287 return FALSE;
30667bf3
AM
4288 if (*sym_name == '\0')
4289 sym_name = bfd_section_name (input_bfd, sym_sec);
4290 }
edd21aca 4291
30667bf3 4292 howto = elf_hppa_howto_table + r_type;
252b5132 4293
875c0872 4294 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4295 {
875c0872 4296 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4297 {
4eca0228 4298 _bfd_error_handler
695344c0 4299 /* xgettext:c-format */
d003868e
AM
4300 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4301 input_bfd,
4302 input_section,
875c0872 4303 (long) rela->r_offset,
f09ebc7d
AM
4304 howto->name,
4305 sym_name);
4306 bfd_set_error (bfd_error_bad_value);
b34976b6 4307 return FALSE;
f09ebc7d 4308 }
30667bf3
AM
4309 }
4310 else
1a72702b
AM
4311 (*info->callbacks->reloc_overflow)
4312 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4313 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4314 }
edd21aca 4315
b34976b6 4316 return TRUE;
30667bf3 4317}
252b5132 4318
30667bf3
AM
4319/* Finish up dynamic symbol handling. We set the contents of various
4320 dynamic sections here. */
252b5132 4321
b34976b6 4322static bfd_boolean
c39a58e6
AM
4323elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4324 struct bfd_link_info *info,
875c0872 4325 struct elf_link_hash_entry *eh,
c39a58e6 4326 Elf_Internal_Sym *sym)
30667bf3 4327{
83c81bfe 4328 struct elf32_hppa_link_hash_table *htab;
875c0872 4329 Elf_Internal_Rela rela;
a252afa4 4330 bfd_byte *loc;
edd21aca 4331
83c81bfe 4332 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4333 if (htab == NULL)
4334 return FALSE;
30667bf3 4335
875c0872 4336 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4337 {
4338 bfd_vma value;
30667bf3 4339
875c0872 4340 if (eh->plt.offset & 1)
8dea1268
AM
4341 abort ();
4342
30667bf3
AM
4343 /* This symbol has an entry in the procedure linkage table. Set
4344 it up.
4345
4346 The format of a plt entry is
74d1c347
AM
4347 <funcaddr>
4348 <__gp>
47d89dba 4349 */
30667bf3 4350 value = 0;
875c0872
DA
4351 if (eh->root.type == bfd_link_hash_defined
4352 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4353 {
875c0872
DA
4354 value = eh->root.u.def.value;
4355 if (eh->root.u.def.section->output_section != NULL)
4356 value += (eh->root.u.def.section->output_offset
4357 + eh->root.u.def.section->output_section->vma);
252b5132 4358 }
edd21aca 4359
a252afa4 4360 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4361 rela.r_offset = (eh->plt.offset
ce558b89
AM
4362 + htab->etab.splt->output_offset
4363 + htab->etab.splt->output_section->vma);
875c0872 4364 if (eh->dynindx != -1)
30667bf3 4365 {
875c0872
DA
4366 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4367 rela.r_addend = 0;
30667bf3 4368 }
ce757d15 4369 else
47d89dba 4370 {
a252afa4
DA
4371 /* This symbol has been marked to become local, and is
4372 used by a plabel so must be kept in the .plt. */
875c0872
DA
4373 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4374 rela.r_addend = value;
47d89dba
AM
4375 }
4376
ce558b89
AM
4377 loc = htab->etab.srelplt->contents;
4378 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4379 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
a252afa4 4380
875c0872 4381 if (!eh->def_regular)
30667bf3
AM
4382 {
4383 /* Mark the symbol as undefined, rather than as defined in
4384 the .plt section. Leave the value alone. */
4385 sym->st_shndx = SHN_UNDEF;
4386 }
4387 }
edd21aca 4388
9b52905e
NC
4389 if (eh->got.offset != (bfd_vma) -1
4390 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4391 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4392 {
30667bf3
AM
4393 /* This symbol has an entry in the global offset table. Set it
4394 up. */
4395
875c0872 4396 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
ce558b89
AM
4397 + htab->etab.sgot->output_offset
4398 + htab->etab.sgot->output_section->vma);
30667bf3 4399
4dc86686
AM
4400 /* If this is a -Bsymbolic link and the symbol is defined
4401 locally or was forced to be local because of a version file,
4402 we just want to emit a RELATIVE reloc. The entry in the
4403 global offset table will already have been initialized in the
4404 relocate_section function. */
0e1862bb 4405 if (bfd_link_pic (info)
a496fbc8 4406 && (SYMBOLIC_BIND (info, eh) || eh->dynindx == -1)
875c0872 4407 && eh->def_regular)
30667bf3 4408 {
875c0872
DA
4409 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4410 rela.r_addend = (eh->root.u.def.value
4411 + eh->root.u.def.section->output_offset
4412 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4413 }
4414 else
4415 {
875c0872 4416 if ((eh->got.offset & 1) != 0)
49e9d0d3 4417 abort ();
875c0872 4418
ce558b89 4419 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + (eh->got.offset & ~1));
875c0872
DA
4420 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4421 rela.r_addend = 0;
30667bf3 4422 }
edd21aca 4423
ce558b89
AM
4424 loc = htab->etab.srelgot->contents;
4425 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4426 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4427 }
edd21aca 4428
875c0872 4429 if (eh->needs_copy)
30667bf3 4430 {
875c0872 4431 asection *sec;
30667bf3
AM
4432
4433 /* This symbol needs a copy reloc. Set it up. */
4434
875c0872
DA
4435 if (! (eh->dynindx != -1
4436 && (eh->root.type == bfd_link_hash_defined
4437 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4438 abort ();
30667bf3 4439
875c0872
DA
4440 rela.r_offset = (eh->root.u.def.value
4441 + eh->root.u.def.section->output_offset
4442 + eh->root.u.def.section->output_section->vma);
4443 rela.r_addend = 0;
4444 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
5474d94f
AM
4445 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
4446 sec = htab->etab.sreldynrelro;
4447 else
4448 sec = htab->etab.srelbss;
875c0872
DA
4449 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4450 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4451 }
4452
4453 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4454 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4455 {
4456 sym->st_shndx = SHN_ABS;
4457 }
4458
b34976b6 4459 return TRUE;
30667bf3
AM
4460}
4461
98ceb8ce
AM
4462/* Used to decide how to sort relocs in an optimal manner for the
4463 dynamic linker, before writing them out. */
4464
4465static enum elf_reloc_type_class
7e612e98
AM
4466elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4467 const asection *rel_sec ATTRIBUTE_UNUSED,
4468 const Elf_Internal_Rela *rela)
98ceb8ce 4469{
9b52905e 4470 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4471 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4472 check below. */
4473 switch ((int) ELF32_R_TYPE (rela->r_info))
4474 {
4475 case R_PARISC_TLS_DTPMOD32:
4476 case R_PARISC_TLS_DTPOFF32:
4477 case R_PARISC_TLS_TPREL32:
4478 return reloc_class_normal;
4479 }
4480
cf35638d 4481 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4482 return reloc_class_relative;
4483
4484 switch ((int) ELF32_R_TYPE (rela->r_info))
4485 {
4486 case R_PARISC_IPLT:
4487 return reloc_class_plt;
4488 case R_PARISC_COPY:
4489 return reloc_class_copy;
4490 default:
4491 return reloc_class_normal;
4492 }
4493}
4494
30667bf3
AM
4495/* Finish up the dynamic sections. */
4496
b34976b6 4497static bfd_boolean
c39a58e6
AM
4498elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4499 struct bfd_link_info *info)
30667bf3
AM
4500{
4501 bfd *dynobj;
83c81bfe 4502 struct elf32_hppa_link_hash_table *htab;
30667bf3 4503 asection *sdyn;
894891db 4504 asection * sgot;
30667bf3 4505
83c81bfe 4506 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4507 if (htab == NULL)
4508 return FALSE;
4509
a63e02c7 4510 dynobj = htab->etab.dynobj;
30667bf3 4511
ce558b89 4512 sgot = htab->etab.sgot;
894891db
NC
4513 /* A broken linker script might have discarded the dynamic sections.
4514 Catch this here so that we do not seg-fault later on. */
4515 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4516 return FALSE;
4517
3d4d4302 4518 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4519
a63e02c7 4520 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4521 {
4522 Elf32_External_Dyn *dyncon, *dynconend;
4523
49e9d0d3
AM
4524 if (sdyn == NULL)
4525 abort ();
30667bf3
AM
4526
4527 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4528 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4529 for (; dyncon < dynconend; dyncon++)
edd21aca 4530 {
30667bf3
AM
4531 Elf_Internal_Dyn dyn;
4532 asection *s;
4533
4534 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4535
4536 switch (dyn.d_tag)
4537 {
4538 default:
3ac8354b 4539 continue;
30667bf3
AM
4540
4541 case DT_PLTGOT:
4542 /* Use PLTGOT to set the GOT register. */
4543 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4544 break;
4545
4546 case DT_JMPREL:
ce558b89 4547 s = htab->etab.srelplt;
30667bf3 4548 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4549 break;
4550
4551 case DT_PLTRELSZ:
ce558b89 4552 s = htab->etab.srelplt;
eea6121a 4553 dyn.d_un.d_val = s->size;
30667bf3
AM
4554 break;
4555 }
3ac8354b
AM
4556
4557 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4558 }
252b5132 4559 }
edd21aca 4560
894891db 4561 if (sgot != NULL && sgot->size != 0)
30667bf3 4562 {
74d1c347
AM
4563 /* Fill in the first entry in the global offset table.
4564 We use it to point to our dynamic section, if we have one. */
30667bf3 4565 bfd_put_32 (output_bfd,
c39a58e6 4566 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4567 sgot->contents);
30667bf3 4568
74d1c347 4569 /* The second entry is reserved for use by the dynamic linker. */
894891db 4570 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4571
30667bf3 4572 /* Set .got entry size. */
894891db 4573 elf_section_data (sgot->output_section)
74d1c347 4574 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4575 }
4576
ce558b89 4577 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
47d89dba 4578 {
f3c3938c
JDA
4579 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4580 plt stubs and as such the section does not hold a table of fixed-size
4581 entries. */
ce558b89 4582 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4583
83c81bfe 4584 if (htab->need_plt_stub)
47d89dba
AM
4585 {
4586 /* Set up the .plt stub. */
ce558b89
AM
4587 memcpy (htab->etab.splt->contents
4588 + htab->etab.splt->size - sizeof (plt_stub),
47d89dba
AM
4589 plt_stub, sizeof (plt_stub));
4590
ce558b89
AM
4591 if ((htab->etab.splt->output_offset
4592 + htab->etab.splt->output_section->vma
4593 + htab->etab.splt->size)
894891db
NC
4594 != (sgot->output_offset
4595 + sgot->output_section->vma))
47d89dba 4596 {
4eca0228 4597 _bfd_error_handler
47d89dba 4598 (_(".got section not immediately after .plt section"));
b34976b6 4599 return FALSE;
47d89dba
AM
4600 }
4601 }
4602 }
30667bf3 4603
b34976b6 4604 return TRUE;
30667bf3 4605}
252b5132 4606
30667bf3
AM
4607/* Called when writing out an object file to decide the type of a
4608 symbol. */
4609static int
c39a58e6 4610elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4611{
4612 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4613 return STT_PARISC_MILLI;
4614 else
4615 return type;
252b5132
RH
4616}
4617
4618/* Misc BFD support code. */
30667bf3
AM
4619#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4620#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4621#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4622#define elf_info_to_howto elf_hppa_info_to_howto
4623#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4624
252b5132 4625/* Stuff for the BFD linker. */
c46b7515 4626#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4627#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4628#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4629#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4630#define elf_backend_check_relocs elf32_hppa_check_relocs
4631#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4632#define elf_backend_fake_sections elf_hppa_fake_sections
4633#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4634#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4635#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4636#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4637#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4638#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4639#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4640#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4641#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4642#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4643#define elf_backend_object_p elf32_hppa_object_p
4644#define elf_backend_final_write_processing elf_hppa_final_write_processing
4645#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4646#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4647#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4648
4649#define elf_backend_can_gc_sections 1
51b64d56 4650#define elf_backend_can_refcount 1
30667bf3
AM
4651#define elf_backend_plt_alignment 2
4652#define elf_backend_want_got_plt 0
4653#define elf_backend_plt_readonly 0
4654#define elf_backend_want_plt_sym 0
74d1c347 4655#define elf_backend_got_header_size 8
5474d94f 4656#define elf_backend_want_dynrelro 1
f0fe0e16 4657#define elf_backend_rela_normal 1
64f52338 4658#define elf_backend_dtrel_excludes_plt 1
252b5132 4659
6d00b590 4660#define TARGET_BIG_SYM hppa_elf32_vec
252b5132
RH
4661#define TARGET_BIG_NAME "elf32-hppa"
4662#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4663#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4664#define ELF_MACHINE_CODE EM_PARISC
4665#define ELF_MAXPAGESIZE 0x1000
d1036acb 4666#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4667#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4668
4669#include "elf32-target.h"
d952f17a
AM
4670
4671#undef TARGET_BIG_SYM
6d00b590 4672#define TARGET_BIG_SYM hppa_elf32_linux_vec
d952f17a 4673#undef TARGET_BIG_NAME
914dfb0f 4674#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4675#undef ELF_OSABI
9c55345c 4676#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4677#undef elf32_bed
4678#define elf32_bed elf32_hppa_linux_bed
d952f17a 4679
d952f17a 4680#include "elf32-target.h"
225247f0
JT
4681
4682#undef TARGET_BIG_SYM
6d00b590 4683#define TARGET_BIG_SYM hppa_elf32_nbsd_vec
225247f0 4684#undef TARGET_BIG_NAME
914dfb0f 4685#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4686#undef ELF_OSABI
4687#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4688#undef elf32_bed
4689#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4690
4691#include "elf32-target.h"