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[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
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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"
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33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
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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
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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
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69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
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71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
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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.
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78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
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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.
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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.
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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
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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
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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
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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
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156 string. */
157#define STUB_SUFFIX ".stub"
30667bf3 158
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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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183struct elf32_hppa_stub_hash_entry
184{
edd21aca 185 /* Base hash table entry structure. */
a63e02c7 186 struct bfd_hash_entry bh_root;
252b5132 187
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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;
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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
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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;
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207};
208
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209enum _tls_type
210 {
211 GOT_UNKNOWN = 0,
212 GOT_NORMAL = 1,
213 GOT_TLS_GD = 2,
214 GOT_TLS_LDM = 4,
215 GOT_TLS_IE = 8
216 };
217
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218struct elf32_hppa_link_hash_entry
219{
a63e02c7 220 struct elf_link_hash_entry eh;
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221
222 /* A pointer to the most recently used stub hash entry against this
223 symbol. */
a63e02c7 224 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 225
30667bf3
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226 /* Used to count relocations for delayed sizing of relocation
227 sections. */
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228 struct elf32_hppa_dyn_reloc_entry
229 {
30667bf3 230 /* Next relocation in the chain. */
a63e02c7 231 struct elf32_hppa_dyn_reloc_entry *hdh_next;
30667bf3 232
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233 /* The input section of the reloc. */
234 asection *sec;
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235
236 /* Number of relocs copied in this section. */
237 bfd_size_type count;
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238
239#if RELATIVE_DYNRELOCS
240 /* Number of relative relocs copied for the input section. */
241 bfd_size_type relative_count;
242#endif
243 } *dyn_relocs;
30667bf3 244
2e684e75 245 ENUM_BITFIELD (_tls_type) tls_type : 8;
9b52905e 246
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247 /* Set if this symbol is used by a plabel reloc. */
248 unsigned int plabel:1;
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249};
250
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251struct elf32_hppa_link_hash_table
252{
252b5132 253 /* The main hash table. */
a63e02c7 254 struct elf_link_hash_table etab;
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255
256 /* The stub hash table. */
a63e02c7 257 struct bfd_hash_table bstab;
252b5132 258
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259 /* Linker stub bfd. */
260 bfd *stub_bfd;
261
30667bf3 262 /* Linker call-backs. */
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263 asection * (*add_stub_section) (const char *, asection *);
264 void (*layout_sections_again) (void);
30667bf3 265
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266 /* Array to keep track of which stub sections have been created, and
267 information on stub grouping. */
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268 struct map_stub
269 {
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270 /* This is the section to which stubs in the group will be
271 attached. */
272 asection *link_sec;
273 /* The stub section. */
274 asection *stub_sec;
25f72752 275 } *stub_group;
30667bf3 276
b4655ea9
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277 /* Assorted information used by elf32_hppa_size_stubs. */
278 unsigned int bfd_count;
7292b3ac 279 unsigned int top_index;
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280 asection **input_list;
281 Elf_Internal_Sym **all_local_syms;
282
c46b7515
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283 /* Used during a final link to store the base of the text and data
284 segments so that we can perform SEGREL relocations. */
285 bfd_vma text_segment_base;
286 bfd_vma data_segment_base;
287
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288 /* Whether we support multiple sub-spaces for shared libs. */
289 unsigned int multi_subspace:1;
290
067fa4a6 291 /* Flags set when various size branches are detected. Used to
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292 select suitable defaults for the stub group size. */
293 unsigned int has_12bit_branch:1;
294 unsigned int has_17bit_branch:1;
067fa4a6 295 unsigned int has_22bit_branch:1;
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296
297 /* Set if we need a .plt stub to support lazy dynamic linking. */
298 unsigned int need_plt_stub:1;
ec338859 299
87d72d41
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300 /* Small local sym cache. */
301 struct sym_cache sym_cache;
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302
303 /* Data for LDM relocations. */
304 union
305 {
306 bfd_signed_vma refcount;
307 bfd_vma offset;
308 } tls_ldm_got;
252b5132
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309};
310
30667bf3
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311/* Various hash macros and functions. */
312#define hppa_link_hash_table(p) \
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313 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
314 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 315
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316#define hppa_elf_hash_entry(ent) \
317 ((struct elf32_hppa_link_hash_entry *)(ent))
318
319#define hppa_stub_hash_entry(ent) \
320 ((struct elf32_hppa_stub_hash_entry *)(ent))
321
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322#define hppa_stub_hash_lookup(table, string, create, copy) \
323 ((struct elf32_hppa_stub_hash_entry *) \
324 bfd_hash_lookup ((table), (string), (create), (copy)))
325
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326#define hppa_elf_local_got_tls_type(abfd) \
327 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
328
329#define hh_name(hh) \
330 (hh ? hh->eh.root.root.string : "<undef>")
331
332#define eh_name(eh) \
333 (eh ? eh->root.root.string : "<undef>")
334
252b5132
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335/* Assorted hash table functions. */
336
337/* Initialize an entry in the stub hash table. */
338
339static struct bfd_hash_entry *
c39a58e6
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340stub_hash_newfunc (struct bfd_hash_entry *entry,
341 struct bfd_hash_table *table,
342 const char *string)
252b5132 343{
252b5132
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344 /* Allocate the structure if it has not already been allocated by a
345 subclass. */
ebe50bae 346 if (entry == NULL)
30667bf3 347 {
ebe50bae
AM
348 entry = bfd_hash_allocate (table,
349 sizeof (struct elf32_hppa_stub_hash_entry));
350 if (entry == NULL)
351 return entry;
30667bf3 352 }
252b5132
RH
353
354 /* Call the allocation method of the superclass. */
ebe50bae
AM
355 entry = bfd_hash_newfunc (entry, table, string);
356 if (entry != NULL)
252b5132 357 {
875c0872 358 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 359
252b5132 360 /* Initialize the local fields. */
875c0872
DA
361 hsh = hppa_stub_hash_entry (entry);
362 hsh->stub_sec = NULL;
363 hsh->stub_offset = 0;
364 hsh->target_value = 0;
365 hsh->target_section = NULL;
366 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 367 hsh->hh = NULL;
875c0872 368 hsh->id_sec = NULL;
30667bf3
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369 }
370
ebe50bae 371 return entry;
30667bf3
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372}
373
30667bf3
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374/* Initialize an entry in the link hash table. */
375
376static struct bfd_hash_entry *
c39a58e6
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377hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
378 struct bfd_hash_table *table,
379 const char *string)
30667bf3 380{
30667bf3
AM
381 /* Allocate the structure if it has not already been allocated by a
382 subclass. */
ebe50bae 383 if (entry == NULL)
30667bf3 384 {
ebe50bae
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385 entry = bfd_hash_allocate (table,
386 sizeof (struct elf32_hppa_link_hash_entry));
387 if (entry == NULL)
388 return entry;
30667bf3
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389 }
390
391 /* Call the allocation method of the superclass. */
ebe50bae
AM
392 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
393 if (entry != NULL)
30667bf3 394 {
875c0872 395 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 396
30667bf3 397 /* Initialize the local fields. */
875c0872 398 hh = hppa_elf_hash_entry (entry);
a63e02c7 399 hh->hsh_cache = NULL;
875c0872
DA
400 hh->dyn_relocs = NULL;
401 hh->plabel = 0;
9b52905e 402 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
403 }
404
ebe50bae 405 return entry;
252b5132
RH
406}
407
68faa637
AM
408/* Free the derived linker hash table. */
409
410static void
d495ab0d 411elf32_hppa_link_hash_table_free (bfd *obfd)
68faa637
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412{
413 struct elf32_hppa_link_hash_table *htab
d495ab0d 414 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
68faa637
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415
416 bfd_hash_table_free (&htab->bstab);
d495ab0d 417 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM
418}
419
252b5132
RH
420/* Create the derived linker hash table. The PA ELF port uses the derived
421 hash table to keep information specific to the PA ELF linker (without
422 using static variables). */
423
424static struct bfd_link_hash_table *
c39a58e6 425elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 426{
875c0872
DA
427 struct elf32_hppa_link_hash_table *htab;
428 bfd_size_type amt = sizeof (*htab);
252b5132 429
7bf52ea2 430 htab = bfd_zmalloc (amt);
875c0872 431 if (htab == NULL)
252b5132 432 return NULL;
edd21aca 433
66eb6687 434 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
435 sizeof (struct elf32_hppa_link_hash_entry),
436 HPPA32_ELF_DATA))
252b5132 437 {
875c0872 438 free (htab);
252b5132
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439 return NULL;
440 }
edd21aca
AM
441
442 /* Init the stub hash table too. */
66eb6687
AM
443 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
444 sizeof (struct elf32_hppa_stub_hash_entry)))
d495ab0d
AM
445 {
446 _bfd_elf_link_hash_table_free (abfd);
447 return NULL;
448 }
449 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
edd21aca 450
875c0872
DA
451 htab->text_segment_base = (bfd_vma) -1;
452 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 453 return &htab->etab.root;
252b5132
RH
454}
455
a464198b
AM
456/* Initialize the linker stubs BFD so that we can use it for linker
457 created dynamic sections. */
458
459void
460elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
461{
462 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
463
464 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
465 htab->etab.dynobj = abfd;
466}
467
30667bf3
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468/* Build a name for an entry in the stub hash table. */
469
edd21aca 470static char *
c39a58e6
AM
471hppa_stub_name (const asection *input_section,
472 const asection *sym_sec,
875c0872
DA
473 const struct elf32_hppa_link_hash_entry *hh,
474 const Elf_Internal_Rela *rela)
edd21aca
AM
475{
476 char *stub_name;
dc810e39 477 bfd_size_type len;
edd21aca 478
875c0872 479 if (hh)
30667bf3 480 {
9b52905e 481 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
482 stub_name = bfd_malloc (len);
483 if (stub_name != NULL)
9b52905e
NC
484 sprintf (stub_name, "%08x_%s+%x",
485 input_section->id & 0xffffffff,
486 hh_name (hh),
487 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
488 }
489 else
edd21aca 490 {
30667bf3
AM
491 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
492 stub_name = bfd_malloc (len);
493 if (stub_name != NULL)
9b52905e
NC
494 sprintf (stub_name, "%08x_%x:%x+%x",
495 input_section->id & 0xffffffff,
496 sym_sec->id & 0xffffffff,
497 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
498 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
499 }
500 return stub_name;
501}
252b5132 502
30667bf3
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503/* Look up an entry in the stub hash. Stub entries are cached because
504 creating the stub name takes a bit of time. */
505
506static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
507hppa_get_stub_entry (const asection *input_section,
508 const asection *sym_sec,
875c0872
DA
509 struct elf32_hppa_link_hash_entry *hh,
510 const Elf_Internal_Rela *rela,
c39a58e6 511 struct elf32_hppa_link_hash_table *htab)
252b5132 512{
a63e02c7 513 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
514 const asection *id_sec;
515
516 /* If this input section is part of a group of sections sharing one
517 stub section, then use the id of the first section in the group.
518 Stub names need to include a section id, as there may well be
519 more than one stub used to reach say, printf, and we need to
520 distinguish between them. */
83c81bfe 521 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 522
a63e02c7
DA
523 if (hh != NULL && hh->hsh_cache != NULL
524 && hh->hsh_cache->hh == hh
525 && hh->hsh_cache->id_sec == id_sec)
edd21aca 526 {
a63e02c7 527 hsh_entry = hh->hsh_cache;
30667bf3
AM
528 }
529 else
530 {
30667bf3 531 char *stub_name;
edd21aca 532
875c0872 533 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
534 if (stub_name == NULL)
535 return NULL;
edd21aca 536
a63e02c7 537 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 538 stub_name, FALSE, FALSE);
875c0872 539 if (hh != NULL)
a63e02c7 540 hh->hsh_cache = hsh_entry;
30667bf3
AM
541
542 free (stub_name);
edd21aca 543 }
30667bf3 544
a63e02c7 545 return hsh_entry;
30667bf3
AM
546}
547
30667bf3
AM
548/* Add a new stub entry to the stub hash. Not all fields of the new
549 stub entry are initialised. */
550
551static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
552hppa_add_stub (const char *stub_name,
553 asection *section,
554 struct elf32_hppa_link_hash_table *htab)
30667bf3 555{
25f72752 556 asection *link_sec;
30667bf3 557 asection *stub_sec;
875c0872 558 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 559
83c81bfe
AM
560 link_sec = htab->stub_group[section->id].link_sec;
561 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 562 if (stub_sec == NULL)
edd21aca 563 {
83c81bfe 564 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
565 if (stub_sec == NULL)
566 {
d4c88bbb 567 size_t namelen;
dc810e39 568 bfd_size_type len;
30667bf3
AM
569 char *s_name;
570
d4c88bbb
AM
571 namelen = strlen (link_sec->name);
572 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 573 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
574 if (s_name == NULL)
575 return NULL;
576
d4c88bbb
AM
577 memcpy (s_name, link_sec->name, namelen);
578 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 579 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
580 if (stub_sec == NULL)
581 return NULL;
83c81bfe 582 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 583 }
83c81bfe 584 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 585 }
252b5132 586
30667bf3 587 /* Enter this entry into the linker stub hash table. */
a63e02c7 588 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 589 TRUE, FALSE);
875c0872 590 if (hsh == NULL)
30667bf3 591 {
695344c0 592 /* xgettext:c-format */
4eca0228
AM
593 _bfd_error_handler (_("%B: cannot create stub entry %s"),
594 section->owner, stub_name);
30667bf3 595 return NULL;
edd21aca
AM
596 }
597
875c0872
DA
598 hsh->stub_sec = stub_sec;
599 hsh->stub_offset = 0;
600 hsh->id_sec = link_sec;
601 return hsh;
edd21aca
AM
602}
603
30667bf3
AM
604/* Determine the type of stub needed, if any, for a call. */
605
606static enum elf32_hppa_stub_type
c39a58e6 607hppa_type_of_stub (asection *input_sec,
875c0872
DA
608 const Elf_Internal_Rela *rela,
609 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
610 bfd_vma destination,
611 struct bfd_link_info *info)
edd21aca 612{
edd21aca 613 bfd_vma location;
30667bf3
AM
614 bfd_vma branch_offset;
615 bfd_vma max_branch_offset;
616 unsigned int r_type;
617
875c0872 618 if (hh != NULL
a63e02c7
DA
619 && hh->eh.plt.offset != (bfd_vma) -1
620 && hh->eh.dynindx != -1
875c0872 621 && !hh->plabel
0e1862bb 622 && (bfd_link_pic (info)
a63e02c7
DA
623 || !hh->eh.def_regular
624 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 625 {
067fa4a6
AM
626 /* We need an import stub. Decide between hppa_stub_import
627 and hppa_stub_import_shared later. */
30667bf3
AM
628 return hppa_stub_import;
629 }
edd21aca 630
30667bf3
AM
631 /* Determine where the call point is. */
632 location = (input_sec->output_offset
633 + input_sec->output_section->vma
875c0872 634 + rela->r_offset);
edd21aca 635
30667bf3 636 branch_offset = destination - location - 8;
875c0872 637 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 638
30667bf3
AM
639 /* Determine if a long branch stub is needed. parisc branch offsets
640 are relative to the second instruction past the branch, ie. +8
641 bytes on from the branch instruction location. The offset is
642 signed and counts in units of 4 bytes. */
643 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
644 max_branch_offset = (1 << (17 - 1)) << 2;
645
30667bf3 646 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
647 max_branch_offset = (1 << (12 - 1)) << 2;
648
25f72752 649 else /* R_PARISC_PCREL22F. */
9b52905e 650 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 651
30667bf3 652 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
653 return hppa_stub_long_branch;
654
30667bf3
AM
655 return hppa_stub_none;
656}
edd21aca 657
30667bf3
AM
658/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
659 IN_ARG contains the link info pointer. */
edd21aca 660
30667bf3
AM
661#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
662#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 663
30667bf3 664#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 665#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 666#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 667
3ee1d854
AM
668#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
669#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 670#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 671#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 672
3ee1d854
AM
673#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
674#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 675
30667bf3
AM
676#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
677#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
678#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
679#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 680
067fa4a6 681#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
682#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
683#define NOP 0x08000240 /* nop */
684#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
685#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
686#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 687
30667bf3
AM
688#ifndef R19_STUBS
689#define R19_STUBS 1
690#endif
edd21aca 691
30667bf3
AM
692#if R19_STUBS
693#define LDW_R1_DLT LDW_R1_R19
694#else
695#define LDW_R1_DLT LDW_R1_DP
696#endif
edd21aca 697
b34976b6 698static bfd_boolean
875c0872 699hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 700{
875c0872 701 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 702 struct bfd_link_info *info;
83c81bfe 703 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
704 asection *stub_sec;
705 bfd *stub_bfd;
706 bfd_byte *loc;
707 bfd_vma sym_value;
74d1c347 708 bfd_vma insn;
8dea1268 709 bfd_vma off;
74d1c347 710 int val;
30667bf3 711 int size;
edd21aca 712
30667bf3 713 /* Massage our args to the form they really have. */
875c0872
DA
714 hsh = hppa_stub_hash_entry (bh);
715 info = (struct bfd_link_info *)in_arg;
30667bf3 716
83c81bfe 717 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
718 if (htab == NULL)
719 return FALSE;
720
875c0872 721 stub_sec = hsh->stub_sec;
edd21aca 722
30667bf3 723 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
724 hsh->stub_offset = stub_sec->size;
725 loc = stub_sec->contents + hsh->stub_offset;
252b5132 726
30667bf3
AM
727 stub_bfd = stub_sec->owner;
728
875c0872 729 switch (hsh->stub_type)
30667bf3
AM
730 {
731 case hppa_stub_long_branch:
732 /* Create the long branch. A long branch is formed with "ldil"
733 loading the upper bits of the target address into a register,
734 then branching with "be" which adds in the lower bits.
735 The "be" has its delay slot nullified. */
875c0872
DA
736 sym_value = (hsh->target_value
737 + hsh->target_section->output_offset
738 + hsh->target_section->output_section->vma);
30667bf3 739
c39a58e6 740 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 741 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
742 bfd_put_32 (stub_bfd, insn, loc);
743
c39a58e6 744 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 745 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
746 bfd_put_32 (stub_bfd, insn, loc + 4);
747
30667bf3 748 size = 8;
edd21aca
AM
749 break;
750
30667bf3
AM
751 case hppa_stub_long_branch_shared:
752 /* Branches are relative. This is where we are going to. */
875c0872
DA
753 sym_value = (hsh->target_value
754 + hsh->target_section->output_offset
755 + hsh->target_section->output_section->vma);
30667bf3
AM
756
757 /* And this is where we are coming from, more or less. */
875c0872 758 sym_value -= (hsh->stub_offset
30667bf3
AM
759 + stub_sec->output_offset
760 + stub_sec->output_section->vma);
761
74d1c347 762 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 763 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 764 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
765 bfd_put_32 (stub_bfd, insn, loc + 4);
766
47d89dba 767 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 768 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
769 bfd_put_32 (stub_bfd, insn, loc + 8);
770 size = 12;
771 break;
edd21aca 772
30667bf3
AM
773 case hppa_stub_import:
774 case hppa_stub_import_shared:
a63e02c7 775 off = hsh->hh->eh.plt.offset;
8dea1268 776 if (off >= (bfd_vma) -2)
49e9d0d3 777 abort ();
8dea1268
AM
778
779 off &= ~ (bfd_vma) 1;
780 sym_value = (off
ce558b89
AM
781 + htab->etab.splt->output_offset
782 + htab->etab.splt->output_section->vma
783 - elf_gp (htab->etab.splt->output_section->owner));
30667bf3
AM
784
785 insn = ADDIL_DP;
786#if R19_STUBS
875c0872 787 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
788 insn = ADDIL_R19;
789#endif
c39a58e6 790 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 791 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 792 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 793
47d89dba
AM
794 /* It is critical to use lrsel/rrsel here because we are using
795 two different offsets (+0 and +4) from sym_value. If we use
796 lsel/rsel then with unfortunate sym_values we will round
797 sym_value+4 up to the next 2k block leading to a mis-match
798 between the lsel and rsel value. */
c39a58e6 799 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 800 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 801 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 802
83c81bfe 803 if (htab->multi_subspace)
30667bf3 804 {
47d89dba 805 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 806 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 807 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 808
74d1c347
AM
809 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
810 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
811 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
812 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 813
30667bf3
AM
814 size = 28;
815 }
816 else
817 {
74d1c347 818 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 819 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 820 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 821 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 822
30667bf3
AM
823 size = 16;
824 }
252b5132 825
30667bf3 826 break;
252b5132 827
30667bf3
AM
828 case hppa_stub_export:
829 /* Branches are relative. This is where we are going to. */
875c0872
DA
830 sym_value = (hsh->target_value
831 + hsh->target_section->output_offset
832 + hsh->target_section->output_section->vma);
252b5132 833
30667bf3 834 /* And this is where we are coming from. */
875c0872 835 sym_value -= (hsh->stub_offset
30667bf3
AM
836 + stub_sec->output_offset
837 + stub_sec->output_section->vma);
edd21aca 838
067fa4a6
AM
839 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
840 && (!htab->has_22bit_branch
841 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 842 {
4eca0228 843 _bfd_error_handler
695344c0 844 /* xgettext:c-format */
d42c267e 845 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 846 hsh->target_section->owner,
d003868e 847 stub_sec,
d42c267e 848 hsh->stub_offset,
a63e02c7 849 hsh->bh_root.string);
30667bf3 850 bfd_set_error (bfd_error_bad_value);
b34976b6 851 return FALSE;
252b5132 852 }
30667bf3 853
74d1c347 854 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
855 if (!htab->has_22bit_branch)
856 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
857 else
858 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
859 bfd_put_32 (stub_bfd, insn, loc);
860
74d1c347
AM
861 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
862 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
863 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
864 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
865 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
866
867 /* Point the function symbol at the stub. */
a63e02c7
DA
868 hsh->hh->eh.root.u.def.section = stub_sec;
869 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
870
871 size = 24;
872 break;
873
874 default:
875 BFD_FAIL ();
b34976b6 876 return FALSE;
252b5132
RH
877 }
878
eea6121a 879 stub_sec->size += size;
b34976b6 880 return TRUE;
252b5132
RH
881}
882
30667bf3
AM
883#undef LDIL_R1
884#undef BE_SR4_R1
885#undef BL_R1
886#undef ADDIL_R1
887#undef DEPI_R1
30667bf3
AM
888#undef LDW_R1_R21
889#undef LDW_R1_DLT
890#undef LDW_R1_R19
891#undef ADDIL_R19
892#undef LDW_R1_DP
893#undef LDSID_R21_R1
894#undef MTSP_R1
895#undef BE_SR0_R21
896#undef STW_RP
897#undef BV_R0_R21
898#undef BL_RP
899#undef NOP
900#undef LDW_RP
901#undef LDSID_RP_R1
902#undef BE_SR0_RP
252b5132 903
30667bf3
AM
904/* As above, but don't actually build the stub. Just bump offset so
905 we know stub section sizes. */
906
b34976b6 907static bfd_boolean
875c0872 908hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 909{
875c0872 910 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 911 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
912 int size;
913
914 /* Massage our args to the form they really have. */
875c0872 915 hsh = hppa_stub_hash_entry (bh);
c39a58e6 916 htab = in_arg;
30667bf3 917
875c0872 918 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 919 size = 8;
875c0872 920 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 921 size = 12;
875c0872 922 else if (hsh->stub_type == hppa_stub_export)
30667bf3 923 size = 24;
74d1c347 924 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 925 {
83c81bfe 926 if (htab->multi_subspace)
30667bf3
AM
927 size = 28;
928 else
929 size = 16;
930 }
252b5132 931
875c0872 932 hsh->stub_sec->size += size;
b34976b6 933 return TRUE;
30667bf3 934}
252b5132 935
30667bf3
AM
936/* Return nonzero if ABFD represents an HPPA ELF32 file.
937 Additionally we set the default architecture and machine. */
938
b34976b6 939static bfd_boolean
c39a58e6 940elf32_hppa_object_p (bfd *abfd)
30667bf3 941{
24a5e751
L
942 Elf_Internal_Ehdr * i_ehdrp;
943 unsigned int flags;
252b5132 944
24a5e751
L
945 i_ehdrp = elf_elfheader (abfd);
946 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
947 {
9c55345c 948 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 949 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 950 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 951 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 952 return FALSE;
24a5e751 953 }
225247f0
JT
954 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
955 {
956 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
957 but the kernel produces corefiles with OSABI=SysV. */
958 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
959 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
960 return FALSE;
961 }
24a5e751
L
962 else
963 {
964 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 965 return FALSE;
24a5e751
L
966 }
967
968 flags = i_ehdrp->e_flags;
30667bf3
AM
969 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
970 {
971 case EFA_PARISC_1_0:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
973 case EFA_PARISC_1_1:
974 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
975 case EFA_PARISC_2_0:
976 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
977 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
978 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
979 }
b34976b6 980 return TRUE;
252b5132
RH
981}
982
30667bf3
AM
983/* Create the .plt and .got sections, and set up our hash table
984 short-cuts to various dynamic sections. */
985
b34976b6 986static bfd_boolean
c39a58e6 987elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 988{
83c81bfe 989 struct elf32_hppa_link_hash_table *htab;
875c0872 990 struct elf_link_hash_entry *eh;
edd21aca 991
30667bf3 992 /* Don't try to create the .plt and .got twice. */
83c81bfe 993 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
994 if (htab == NULL)
995 return FALSE;
ce558b89 996 if (htab->etab.splt != NULL)
b34976b6 997 return TRUE;
edd21aca 998
30667bf3
AM
999 /* Call the generic code to do most of the work. */
1000 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 1001 return FALSE;
252b5132 1002
b18e2ae5
AM
1003 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1004 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
1005 eh = elf_hash_table (info)->hgot;
1006 eh->forced_local = 0;
1007 eh->other = STV_DEFAULT;
1008 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1009}
1010
ebe50bae
AM
1011/* Copy the extra info we tack onto an elf_link_hash_entry. */
1012
51b64d56 1013static void
fcfa13d2 1014elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1015 struct elf_link_hash_entry *eh_dir,
1016 struct elf_link_hash_entry *eh_ind)
ebe50bae 1017{
875c0872 1018 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1019
875c0872
DA
1020 hh_dir = hppa_elf_hash_entry (eh_dir);
1021 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1022
875c0872 1023 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1024 {
875c0872 1025 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1026 {
875c0872
DA
1027 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1028 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1029
fcfa13d2 1030 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1031 list. Merge any entries against the same section. */
875c0872 1032 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1033 {
875c0872 1034 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1035
fcfa13d2
AM
1036 for (hdh_q = hh_dir->dyn_relocs;
1037 hdh_q != NULL;
1038 hdh_q = hdh_q->hdh_next)
875c0872 1039 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1040 {
1041#if RELATIVE_DYNRELOCS
875c0872 1042 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1043#endif
875c0872 1044 hdh_q->count += hdh_p->count;
a63e02c7 1045 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1046 break;
1047 }
875c0872 1048 if (hdh_q == NULL)
a63e02c7 1049 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1050 }
875c0872 1051 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1052 }
1053
875c0872
DA
1054 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1055 hh_ind->dyn_relocs = NULL;
ebe50bae 1056 }
ebe50bae 1057
4fc8051d 1058 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1059 && eh_ind->root.type != bfd_link_hash_indirect
1060 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1061 {
1062 /* If called to transfer flags for a weakdef during processing
1063 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1064 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM
1065 if (eh_dir->versioned != versioned_hidden)
1066 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
875c0872
DA
1067 eh_dir->ref_regular |= eh_ind->ref_regular;
1068 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1069 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1070 }
4fc8051d 1071 else
9b52905e 1072 {
e81830c5
AM
1073 if (eh_ind->root.type == bfd_link_hash_indirect)
1074 {
1075 hh_dir->plabel |= hh_ind->plabel;
1076 hh_dir->tls_type |= hh_ind->tls_type;
1077 hh_ind->tls_type = GOT_UNKNOWN;
1078 }
9b52905e
NC
1079
1080 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1081 }
1082}
1083
1084static int
1085elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1086 int r_type, int is_local ATTRIBUTE_UNUSED)
1087{
1088 /* For now we don't support linker optimizations. */
1089 return r_type;
ebe50bae
AM
1090}
1091
d45b7d74
DA
1092/* Return a pointer to the local GOT, PLT and TLS reference counts
1093 for ABFD. Returns NULL if the storage allocation fails. */
1094
1095static bfd_signed_vma *
1096hppa32_elf_local_refcounts (bfd *abfd)
1097{
1098 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1099 bfd_signed_vma *local_refcounts;
68ffbac6 1100
d45b7d74
DA
1101 local_refcounts = elf_local_got_refcounts (abfd);
1102 if (local_refcounts == NULL)
1103 {
1104 bfd_size_type size;
1105
1106 /* Allocate space for local GOT and PLT reference
1107 counts. Done this way to save polluting elf_obj_tdata
1108 with another target specific pointer. */
1109 size = symtab_hdr->sh_info;
1110 size *= 2 * sizeof (bfd_signed_vma);
1111 /* Add in space to store the local GOT TLS types. */
1112 size += symtab_hdr->sh_info;
1113 local_refcounts = bfd_zalloc (abfd, size);
1114 if (local_refcounts == NULL)
1115 return NULL;
1116 elf_local_got_refcounts (abfd) = local_refcounts;
1117 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1118 symtab_hdr->sh_info);
1119 }
1120 return local_refcounts;
1121}
1122
1123
30667bf3 1124/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1125 calculate needed space in the global offset table, procedure linkage
1126 table, and dynamic reloc sections. At this point we haven't
1127 necessarily read all the input files. */
252b5132 1128
b34976b6 1129static bfd_boolean
c39a58e6
AM
1130elf32_hppa_check_relocs (bfd *abfd,
1131 struct bfd_link_info *info,
1132 asection *sec,
1133 const Elf_Internal_Rela *relocs)
252b5132 1134{
30667bf3 1135 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1136 struct elf_link_hash_entry **eh_syms;
1137 const Elf_Internal_Rela *rela;
1138 const Elf_Internal_Rela *rela_end;
83c81bfe 1139 struct elf32_hppa_link_hash_table *htab;
30667bf3 1140 asection *sreloc;
30667bf3 1141
0e1862bb 1142 if (bfd_link_relocatable (info))
b34976b6 1143 return TRUE;
30667bf3 1144
83c81bfe 1145 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1146 if (htab == NULL)
1147 return FALSE;
30667bf3 1148 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1149 eh_syms = elf_sym_hashes (abfd);
30667bf3 1150 sreloc = NULL;
30667bf3 1151
875c0872
DA
1152 rela_end = relocs + sec->reloc_count;
1153 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1154 {
1155 enum {
1156 NEED_GOT = 1,
1157 NEED_PLT = 2,
1158 NEED_DYNREL = 4,
98ceb8ce 1159 PLT_PLABEL = 8
30667bf3 1160 };
edd21aca 1161
30667bf3 1162 unsigned int r_symndx, r_type;
875c0872
DA
1163 struct elf32_hppa_link_hash_entry *hh;
1164 int need_entry = 0;
252b5132 1165
875c0872 1166 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1167
30667bf3 1168 if (r_symndx < symtab_hdr->sh_info)
875c0872 1169 hh = NULL;
30667bf3 1170 else
f7c5057a 1171 {
875c0872 1172 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1173 while (hh->eh.root.type == bfd_link_hash_indirect
1174 || hh->eh.root.type == bfd_link_hash_warning)
1175 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
81fbe831
AM
1176
1177 /* PR15323, ref flags aren't set for references in the same
1178 object. */
bc4e12de 1179 hh->eh.root.non_ir_ref_regular = 1;
f7c5057a 1180 }
252b5132 1181
875c0872 1182 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1183 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1184
30667bf3
AM
1185 switch (r_type)
1186 {
1187 case R_PARISC_DLTIND14F:
1188 case R_PARISC_DLTIND14R:
1189 case R_PARISC_DLTIND21L:
1190 /* This symbol requires a global offset table entry. */
1191 need_entry = NEED_GOT;
30667bf3
AM
1192 break;
1193
1194 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1195 case R_PARISC_PLABEL21L:
1196 case R_PARISC_PLABEL32:
74d1c347 1197 /* If the addend is non-zero, we break badly. */
875c0872 1198 if (rela->r_addend != 0)
49e9d0d3 1199 abort ();
74d1c347
AM
1200
1201 /* If we are creating a shared library, then we need to
1202 create a PLT entry for all PLABELs, because PLABELs with
1203 local symbols may be passed via a pointer to another
1204 object. Additionally, output a dynamic relocation
4dc86686 1205 pointing to the PLT entry.
875c0872 1206
4dc86686
AM
1207 For executables, the original 32-bit ABI allowed two
1208 different styles of PLABELs (function pointers): For
1209 global functions, the PLABEL word points into the .plt
1210 two bytes past a (function address, gp) pair, and for
1211 local functions the PLABEL points directly at the
1212 function. The magic +2 for the first type allows us to
1213 differentiate between the two. As you can imagine, this
1214 is a real pain when it comes to generating code to call
1215 functions indirectly or to compare function pointers.
1216 We avoid the mess by always pointing a PLABEL into the
1217 .plt, even for local functions. */
127e8e9f
AM
1218 need_entry = PLT_PLABEL | NEED_PLT;
1219 if (bfd_link_pic (info))
1220 need_entry |= NEED_DYNREL;
30667bf3
AM
1221 break;
1222
1223 case R_PARISC_PCREL12F:
83c81bfe 1224 htab->has_12bit_branch = 1;
067fa4a6
AM
1225 goto branch_common;
1226
30667bf3
AM
1227 case R_PARISC_PCREL17C:
1228 case R_PARISC_PCREL17F:
83c81bfe 1229 htab->has_17bit_branch = 1;
067fa4a6
AM
1230 goto branch_common;
1231
30667bf3 1232 case R_PARISC_PCREL22F:
067fa4a6
AM
1233 htab->has_22bit_branch = 1;
1234 branch_common:
47d89dba
AM
1235 /* Function calls might need to go through the .plt, and
1236 might require long branch stubs. */
875c0872 1237 if (hh == NULL)
30667bf3
AM
1238 {
1239 /* We know local syms won't need a .plt entry, and if
1240 they need a long branch stub we can't guarantee that
1241 we can reach the stub. So just flag an error later
1242 if we're doing a shared link and find we need a long
1243 branch stub. */
1244 continue;
1245 }
1246 else
1247 {
1248 /* Global symbols will need a .plt entry if they remain
1249 global, and in most cases won't need a long branch
1250 stub. Unfortunately, we have to cater for the case
1251 where a symbol is forced local by versioning, or due
1252 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1253 need_entry = NEED_PLT;
a63e02c7 1254 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1255 need_entry = 0;
30667bf3
AM
1256 }
1257 break;
1258
36751eee 1259 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1260 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1261 case R_PARISC_PCREL14F: /* PC relative load/store. */
1262 case R_PARISC_PCREL14R:
1263 case R_PARISC_PCREL17R: /* External branches. */
1264 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1265 case R_PARISC_PCREL32:
30667bf3
AM
1266 /* We don't need to propagate the relocation if linking a
1267 shared object since these are section relative. */
1268 continue;
1269
1270 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1271 case R_PARISC_DPREL14R:
1272 case R_PARISC_DPREL21L:
0e1862bb 1273 if (bfd_link_pic (info))
30667bf3 1274 {
4eca0228 1275 _bfd_error_handler
695344c0 1276 /* xgettext:c-format */
d003868e
AM
1277 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1278 abfd,
30667bf3
AM
1279 elf_hppa_howto_table[r_type].name);
1280 bfd_set_error (bfd_error_bad_value);
b34976b6 1281 return FALSE;
30667bf3
AM
1282 }
1283 /* Fall through. */
1284
1285 case R_PARISC_DIR17F: /* Used for external branches. */
1286 case R_PARISC_DIR17R:
47d89dba
AM
1287 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1288 case R_PARISC_DIR14R:
30667bf3 1289 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1290 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1291 /* We may want to output a dynamic relocation later. */
1292 need_entry = NEED_DYNREL;
1293 break;
1294
1295 /* This relocation describes the C++ object vtable hierarchy.
1296 Reconstruct it for later use during GC. */
1297 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1298 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1299 return FALSE;
30667bf3
AM
1300 continue;
1301
1302 /* This relocation describes which C++ vtable entries are actually
1303 used. Record for later use during GC. */
1304 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1305 BFD_ASSERT (hh != NULL);
1306 if (hh != NULL
1307 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1308 return FALSE;
30667bf3
AM
1309 continue;
1310
9b52905e
NC
1311 case R_PARISC_TLS_GD21L:
1312 case R_PARISC_TLS_GD14R:
1313 case R_PARISC_TLS_LDM21L:
1314 case R_PARISC_TLS_LDM14R:
1315 need_entry = NEED_GOT;
1316 break;
1317
1318 case R_PARISC_TLS_IE21L:
1319 case R_PARISC_TLS_IE14R:
2e684e75 1320 if (bfd_link_dll (info))
9b52905e
NC
1321 info->flags |= DF_STATIC_TLS;
1322 need_entry = NEED_GOT;
1323 break;
1324
30667bf3
AM
1325 default:
1326 continue;
1327 }
1328
1329 /* Now carry out our orders. */
1330 if (need_entry & NEED_GOT)
1331 {
2e684e75
AM
1332 int tls_type = GOT_NORMAL;
1333
9b52905e
NC
1334 switch (r_type)
1335 {
1336 default:
9b52905e
NC
1337 break;
1338 case R_PARISC_TLS_GD21L:
1339 case R_PARISC_TLS_GD14R:
2e684e75 1340 tls_type = GOT_TLS_GD;
9b52905e
NC
1341 break;
1342 case R_PARISC_TLS_LDM21L:
1343 case R_PARISC_TLS_LDM14R:
2e684e75 1344 tls_type = GOT_TLS_LDM;
9b52905e
NC
1345 break;
1346 case R_PARISC_TLS_IE21L:
1347 case R_PARISC_TLS_IE14R:
2e684e75 1348 tls_type = GOT_TLS_IE;
9b52905e
NC
1349 break;
1350 }
1351
30667bf3 1352 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1353 relocation for this entry. */
ce558b89 1354 if (htab->etab.sgot == NULL)
30667bf3 1355 {
a63e02c7 1356 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1357 return FALSE;
30667bf3
AM
1358 }
1359
2e684e75 1360 if (hh != NULL)
30667bf3 1361 {
2e684e75
AM
1362 if (tls_type == GOT_TLS_LDM)
1363 htab->tls_ldm_got.refcount += 1;
9b52905e 1364 else
2e684e75
AM
1365 hh->eh.got.refcount += 1;
1366 hh->tls_type |= tls_type;
1367 }
1368 else
1369 {
1370 bfd_signed_vma *local_got_refcounts;
9b52905e 1371
2e684e75
AM
1372 /* This is a global offset table entry for a local symbol. */
1373 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1374 if (local_got_refcounts == NULL)
1375 return FALSE;
1376 if (tls_type == GOT_TLS_LDM)
1377 htab->tls_ldm_got.refcount += 1;
1378 else
1379 local_got_refcounts[r_symndx] += 1;
9b52905e 1380
2e684e75 1381 hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type;
30667bf3
AM
1382 }
1383 }
1384
1385 if (need_entry & NEED_PLT)
1386 {
1387 /* If we are creating a shared library, and this is a reloc
1388 against a weak symbol or a global symbol in a dynamic
1389 object, then we will be creating an import stub and a
1390 .plt entry for the symbol. Similarly, on a normal link
1391 to symbols defined in a dynamic object we'll need the
1392 import stub and a .plt entry. We don't know yet whether
1393 the symbol is defined or not, so make an entry anyway and
1394 clean up later in adjust_dynamic_symbol. */
1395 if ((sec->flags & SEC_ALLOC) != 0)
1396 {
875c0872 1397 if (hh != NULL)
30667bf3 1398 {
a63e02c7
DA
1399 hh->eh.needs_plt = 1;
1400 hh->eh.plt.refcount += 1;
74d1c347 1401
36605136
AM
1402 /* If this .plt entry is for a plabel, mark it so
1403 that adjust_dynamic_symbol will keep the entry
1404 even if it appears to be local. */
74d1c347 1405 if (need_entry & PLT_PLABEL)
875c0872 1406 hh->plabel = 1;
74d1c347
AM
1407 }
1408 else if (need_entry & PLT_PLABEL)
1409 {
3ac8354b 1410 bfd_signed_vma *local_got_refcounts;
68fb2e56 1411 bfd_signed_vma *local_plt_refcounts;
74d1c347 1412
d45b7d74 1413 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1414 if (local_got_refcounts == NULL)
d45b7d74 1415 return FALSE;
68fb2e56
AM
1416 local_plt_refcounts = (local_got_refcounts
1417 + symtab_hdr->sh_info);
ebe50bae 1418 local_plt_refcounts[r_symndx] += 1;
30667bf3 1419 }
30667bf3
AM
1420 }
1421 }
1422
d336fa6d
AM
1423 if ((need_entry & NEED_DYNREL) != 0
1424 && (sec->flags & SEC_ALLOC) != 0)
30667bf3
AM
1425 {
1426 /* Flag this symbol as having a non-got, non-plt reference
1427 so that we generate copy relocs if it turns out to be
1428 dynamic. */
0e1862bb 1429 if (hh != NULL && !bfd_link_pic (info))
a63e02c7 1430 hh->eh.non_got_ref = 1;
30667bf3
AM
1431
1432 /* If we are creating a shared library then we need to copy
1433 the reloc into the shared library. However, if we are
1434 linking with -Bsymbolic, we need only copy absolute
1435 relocs or relocs against symbols that are not defined in
1436 an object we are including in the link. PC- or DP- or
1437 DLT-relative relocs against any local sym or global sym
1438 with DEF_REGULAR set, can be discarded. At this point we
1439 have not seen all the input files, so it is possible that
1440 DEF_REGULAR is not set now but will be set later (it is
1441 never cleared). We account for that possibility below by
98ceb8ce 1442 storing information in the dyn_relocs field of the
30667bf3
AM
1443 hash table entry.
1444
1445 A similar situation to the -Bsymbolic case occurs when
1446 creating shared libraries and symbol visibility changes
1447 render the symbol local.
1448
1449 As it turns out, all the relocs we will be creating here
1450 are absolute, so we cannot remove them on -Bsymbolic
1451 links or visibility changes anyway. A STUB_REL reloc
1452 is absolute too, as in that case it is the reloc in the
1453 stub we will be creating, rather than copying the PCREL
56882138
AM
1454 reloc in the branch.
1455
1456 If on the other hand, we are creating an executable, we
1457 may need to keep relocations for symbols satisfied by a
1458 dynamic library if we manage to avoid copy relocs for the
1459 symbol. */
0e1862bb 1460 if ((bfd_link_pic (info)
446f2863 1461 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1462 || (hh != NULL
a496fbc8 1463 && (!SYMBOLIC_BIND (info, &hh->eh)
a63e02c7
DA
1464 || hh->eh.root.type == bfd_link_hash_defweak
1465 || !hh->eh.def_regular))))
4fc8051d 1466 || (ELIMINATE_COPY_RELOCS
0e1862bb 1467 && !bfd_link_pic (info)
875c0872 1468 && hh != NULL
a63e02c7
DA
1469 && (hh->eh.root.type == bfd_link_hash_defweak
1470 || !hh->eh.def_regular)))
30667bf3 1471 {
875c0872
DA
1472 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1473 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1474
30667bf3
AM
1475 /* Create a reloc section in dynobj and make room for
1476 this reloc. */
98ceb8ce 1477 if (sreloc == NULL)
30667bf3 1478 {
83bac4b0
NC
1479 sreloc = _bfd_elf_make_dynamic_reloc_section
1480 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1481
98ceb8ce 1482 if (sreloc == NULL)
30667bf3 1483 {
83bac4b0
NC
1484 bfd_set_error (bfd_error_bad_value);
1485 return FALSE;
30667bf3 1486 }
30667bf3
AM
1487 }
1488
98ceb8ce
AM
1489 /* If this is a global symbol, we count the number of
1490 relocations we need for this symbol. */
875c0872 1491 if (hh != NULL)
30667bf3 1492 {
875c0872 1493 hdh_head = &hh->dyn_relocs;
ec338859
AM
1494 }
1495 else
1496 {
1497 /* Track dynamic relocs needed for local syms too.
1498 We really need local syms available to do this
1499 easily. Oh well. */
875c0872 1500 asection *sr;
6edfbbad 1501 void *vpp;
87d72d41 1502 Elf_Internal_Sym *isym;
6edfbbad 1503
87d72d41
AM
1504 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1505 abfd, r_symndx);
1506 if (isym == NULL)
b34976b6 1507 return FALSE;
30667bf3 1508
87d72d41
AM
1509 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1510 if (sr == NULL)
1511 sr = sec;
1512
6edfbbad
DJ
1513 vpp = &elf_section_data (sr)->local_dynrel;
1514 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1515 }
1516
875c0872
DA
1517 hdh_p = *hdh_head;
1518 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1519 {
a63e02c7 1520 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1521 if (hdh_p == NULL)
b34976b6 1522 return FALSE;
a63e02c7 1523 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1524 *hdh_head = hdh_p;
1525 hdh_p->sec = sec;
1526 hdh_p->count = 0;
98ceb8ce 1527#if RELATIVE_DYNRELOCS
875c0872 1528 hdh_p->relative_count = 0;
98ceb8ce 1529#endif
ec338859 1530 }
98ceb8ce 1531
875c0872 1532 hdh_p->count += 1;
98ceb8ce 1533#if RELATIVE_DYNRELOCS
ec338859 1534 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1535 hdh_p->relative_count += 1;
98ceb8ce 1536#endif
30667bf3
AM
1537 }
1538 }
1539 }
edd21aca 1540
b34976b6 1541 return TRUE;
edd21aca
AM
1542}
1543
30667bf3
AM
1544/* Return the section that should be marked against garbage collection
1545 for a given relocation. */
1546
1547static asection *
c39a58e6 1548elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1549 struct bfd_link_info *info,
875c0872
DA
1550 Elf_Internal_Rela *rela,
1551 struct elf_link_hash_entry *hh,
c39a58e6 1552 Elf_Internal_Sym *sym)
30667bf3 1553{
875c0872 1554 if (hh != NULL)
07adf181
AM
1555 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1556 {
1557 case R_PARISC_GNU_VTINHERIT:
1558 case R_PARISC_GNU_VTENTRY:
1559 return NULL;
1560 }
30667bf3 1561
07adf181 1562 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1563}
1564
edfc032f
AM
1565/* Support for core dump NOTE sections. */
1566
1567static bfd_boolean
1568elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1569{
1570 int offset;
1571 size_t size;
1572
1573 switch (note->descsz)
1574 {
1575 default:
1576 return FALSE;
1577
1578 case 396: /* Linux/hppa */
1579 /* pr_cursig */
228e534f 1580 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1581
1582 /* pr_pid */
228e534f 1583 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1584
1585 /* pr_reg */
1586 offset = 72;
1587 size = 320;
1588
1589 break;
1590 }
1591
1592 /* Make a ".reg/999" section. */
1593 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1594 size, note->descpos + offset);
1595}
1596
1597static bfd_boolean
1598elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1599{
1600 switch (note->descsz)
1601 {
1602 default:
1603 return FALSE;
1604
1605 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1606 elf_tdata (abfd)->core->program
edfc032f 1607 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1608 elf_tdata (abfd)->core->command
edfc032f
AM
1609 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1610 }
1611
1612 /* Note that for some reason, a spurious space is tacked
1613 onto the end of the args in some (at least one anyway)
1614 implementations, so strip it off if it exists. */
1615 {
228e534f 1616 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1617 int n = strlen (command);
1618
1619 if (0 < n && command[n - 1] == ' ')
1620 command[n - 1] = '\0';
1621 }
1622
1623 return TRUE;
1624}
1625
74d1c347
AM
1626/* Our own version of hide_symbol, so that we can keep plt entries for
1627 plabels. */
1628
1629static void
c39a58e6 1630elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1631 struct elf_link_hash_entry *eh,
c39a58e6 1632 bfd_boolean force_local)
74d1c347 1633{
e5094212
AM
1634 if (force_local)
1635 {
875c0872
DA
1636 eh->forced_local = 1;
1637 if (eh->dynindx != -1)
e5094212 1638 {
875c0872 1639 eh->dynindx = -1;
e5094212 1640 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1641 eh->dynstr_index);
e5094212 1642 }
31fc8a0b
NC
1643
1644 /* PR 16082: Remove version information from hidden symbol. */
1645 eh->verinfo.verdef = NULL;
1646 eh->verinfo.vertree = NULL;
e5094212
AM
1647 }
1648
4340287b
DA
1649 /* STT_GNU_IFUNC symbol must go through PLT. */
1650 if (! hppa_elf_hash_entry (eh)->plabel
1651 && eh->type != STT_GNU_IFUNC)
74d1c347 1652 {
875c0872 1653 eh->needs_plt = 0;
4340287b 1654 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1655 }
1656}
1657
127e8e9f
AM
1658/* Find any dynamic relocs that apply to read-only sections. */
1659
1660static asection *
1661readonly_dynrelocs (struct elf_link_hash_entry *eh)
1662{
1663 struct elf32_hppa_link_hash_entry *hh;
1664 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1665
1666 hh = hppa_elf_hash_entry (eh);
1667 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1668 {
1669 asection *sec = hdh_p->sec->output_section;
1670
1671 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1672 return hdh_p->sec;
1673 }
1674 return NULL;
1675}
1676
30667bf3
AM
1677/* Adjust a symbol defined by a dynamic object and referenced by a
1678 regular object. The current definition is in some section of the
1679 dynamic object, but we're not including those sections. We have to
1680 change the definition to something the rest of the link can
1681 understand. */
252b5132 1682
b34976b6 1683static bfd_boolean
c39a58e6 1684elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1685 struct elf_link_hash_entry *eh)
252b5132 1686{
83c81bfe 1687 struct elf32_hppa_link_hash_table *htab;
5474d94f 1688 asection *sec, *srel;
30667bf3
AM
1689
1690 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1691 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1692 if (eh->type == STT_FUNC
1693 || eh->needs_plt)
30667bf3 1694 {
127e8e9f
AM
1695 /* After adjust_dynamic_symbol, non_got_ref set in the non-pic
1696 case means that dyn_relocs for this symbol should be
1697 discarded; We either want the symbol to remain undefined, or
1698 we have a local definition of some sort. The "local
1699 definition" for non-function symbols may be due to creating a
1700 local definition in .dynbss.
1701 Unlike other targets, elf32-hppa.c does not define a function
1702 symbol in a non-pic executable on PLT stub code, so we don't
1703 have a local definition in that case. dyn_relocs therefore
1704 should not be discarded for function symbols, generally.
1705 However we should discard dyn_relocs if we've decided that an
1706 undefined function symbol is local, for example due to
1707 non-default visibility, or UNDEFWEAK_NO_DYNAMIC_RELOC is
1708 true for an undefined weak symbol. */
1709 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh)
1710 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh));
1711 /* Prior to adjust_dynamic_symbol, non_got_ref set means that
1712 check_relocs set up some dyn_relocs for this symbol.
1713 The !non_got_ref term here is saying that if we didn't have
1714 any dyn_relocs set up by check_relocs, then we don't want
1715 relocate_section looking for them.
1716 FIXME: Get rid of the inversion, so non_got_ref set after
1717 dyn_relocs means we do have dyn_relocs. */
1718 eh->non_got_ref = local || !eh->non_got_ref;
1719
4340287b
DA
1720 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1721 The refcounts are not reliable when it has been hidden since
1722 hide_symbol can be called before the plabel flag is set. */
d336fa6d 1723 if (hppa_elf_hash_entry (eh)->plabel)
4340287b
DA
1724 eh->plt.refcount = 1;
1725
127e8e9f
AM
1726 /* Note that unlike some other backends, the refcount is not
1727 incremented for a non-call (and non-plabel) function reference. */
d336fa6d 1728 else if (eh->plt.refcount <= 0
127e8e9f 1729 || local)
30667bf3
AM
1730 {
1731 /* The .plt entry is not needed when:
1732 a) Garbage collection has removed all references to the
1733 symbol, or
1734 b) We know for certain the symbol is defined in this
74d1c347
AM
1735 object, and it's not a weak definition, nor is the symbol
1736 used by a plabel relocation. Either this object is the
1737 application or we are doing a shared symbolic link. */
875c0872
DA
1738 eh->plt.offset = (bfd_vma) -1;
1739 eh->needs_plt = 0;
30667bf3 1740 }
4dc86686 1741
127e8e9f 1742 /* Function symbols can't have copy relocs. */
b34976b6 1743 return TRUE;
30667bf3 1744 }
bbd7ec4a 1745 else
875c0872 1746 eh->plt.offset = (bfd_vma) -1;
edd21aca 1747
30667bf3
AM
1748 /* If this is a weak symbol, and there is a real definition, the
1749 processor independent code will have arranged for us to see the
1750 real definition first, and we can just use the same value. */
875c0872 1751 if (eh->u.weakdef != NULL)
edd21aca 1752 {
875c0872
DA
1753 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1754 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1755 abort ();
875c0872
DA
1756 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1757 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1758 if (ELIMINATE_COPY_RELOCS)
875c0872 1759 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1760 return TRUE;
30667bf3 1761 }
edd21aca 1762
30667bf3
AM
1763 /* This is a reference to a symbol defined by a dynamic object which
1764 is not a function. */
1765
1766 /* If we are creating a shared library, we must presume that the
1767 only references to the symbol are via the global offset table.
1768 For such cases we need not do anything here; the relocations will
1769 be handled correctly by relocate_section. */
0e1862bb 1770 if (bfd_link_pic (info))
b34976b6 1771 return TRUE;
30667bf3
AM
1772
1773 /* If there are no references to this symbol that do not use the
1774 GOT, we don't need to generate a copy reloc. */
875c0872 1775 if (!eh->non_got_ref)
ebe50bae 1776 {
127e8e9f
AM
1777 eh->non_got_ref = 1;
1778 return TRUE;
1779 }
ebe50bae 1780
127e8e9f
AM
1781 /* If -z nocopyreloc was given, we won't generate them either. */
1782 if (info->nocopyreloc)
1783 {
1784 eh->non_got_ref = 0;
1785 return TRUE;
1786 }
4fc8051d 1787
127e8e9f
AM
1788 if (ELIMINATE_COPY_RELOCS
1789 && !readonly_dynrelocs (eh))
1790 {
4fc8051d
AM
1791 /* If we didn't find any dynamic relocs in read-only sections, then
1792 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
127e8e9f
AM
1793 eh->non_got_ref = 0;
1794 return TRUE;
ebe50bae
AM
1795 }
1796
30667bf3
AM
1797 /* We must allocate the symbol in our .dynbss section, which will
1798 become part of the .bss section of the executable. There will be
1799 an entry for this symbol in the .dynsym section. The dynamic
1800 object will contain position independent code, so all references
1801 from the dynamic object to this symbol will go through the global
1802 offset table. The dynamic linker will use the .dynsym entry to
1803 determine the address it must put in the global offset table, so
1804 both the dynamic object and the regular object will refer to the
1805 same memory location for the variable. */
1806
3ac8354b 1807 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1808 if (htab == NULL)
1809 return FALSE;
30667bf3
AM
1810
1811 /* We must generate a COPY reloc to tell the dynamic linker to
1812 copy the initial value out of the dynamic object and into the
3ac8354b 1813 runtime process image. */
5474d94f
AM
1814 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1815 {
1816 sec = htab->etab.sdynrelro;
1817 srel = htab->etab.sreldynrelro;
1818 }
1819 else
1820 {
1821 sec = htab->etab.sdynbss;
1822 srel = htab->etab.srelbss;
1823 }
1d7e9d18 1824 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1825 {
5474d94f 1826 srel->size += sizeof (Elf32_External_Rela);
875c0872 1827 eh->needs_copy = 1;
edd21aca 1828 }
252b5132 1829
6cabe1ea 1830 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
252b5132
RH
1831}
1832
46434633 1833/* If EH is undefined, make it dynamic if that makes sense. */
595e0a47
AM
1834
1835static bfd_boolean
46434633
AM
1836ensure_undef_dynamic (struct bfd_link_info *info,
1837 struct elf_link_hash_entry *eh)
595e0a47 1838{
46434633
AM
1839 struct elf_link_hash_table *htab = elf_hash_table (info);
1840
1841 if (htab->dynamic_sections_created
1842 && (eh->root.type == bfd_link_hash_undefweak
1843 || eh->root.type == bfd_link_hash_undefined)
1844 && eh->dynindx == -1
595e0a47
AM
1845 && !eh->forced_local
1846 && eh->type != STT_PARISC_MILLI
60c1b909 1847 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)
595e0a47
AM
1848 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1849 return bfd_elf_link_record_dynamic_symbol (info, eh);
1850 return TRUE;
1851}
1852
e5ee5df1 1853/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1854 ie. plabel entries. */
a8d02d66 1855
b34976b6 1856static bfd_boolean
875c0872 1857allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1858{
1859 struct bfd_link_info *info;
1860 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1861 struct elf32_hppa_link_hash_entry *hh;
1862 asection *sec;
a8d02d66 1863
875c0872 1864 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1865 return TRUE;
a8d02d66 1866
875c0872 1867 info = (struct bfd_link_info *) inf;
9b52905e 1868 hh = hppa_elf_hash_entry (eh);
a8d02d66 1869 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1870 if (htab == NULL)
1871 return FALSE;
1872
a63e02c7 1873 if (htab->etab.dynamic_sections_created
875c0872 1874 && eh->plt.refcount > 0)
e5ee5df1 1875 {
46434633 1876 if (!ensure_undef_dynamic (info, eh))
595e0a47 1877 return FALSE;
e5ee5df1 1878
0e1862bb 1879 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
e5ee5df1 1880 {
067fa4a6
AM
1881 /* Allocate these later. From this point on, h->plabel
1882 means that the plt entry is only used by a plabel.
1883 We'll be using a normal plt entry for this symbol, so
1884 clear the plabel indicator. */
68ffbac6 1885
875c0872 1886 hh->plabel = 0;
e5ee5df1 1887 }
875c0872 1888 else if (hh->plabel)
e5ee5df1
AM
1889 {
1890 /* Make an entry in the .plt section for plabel references
1891 that won't have a .plt entry for other reasons. */
ce558b89 1892 sec = htab->etab.splt;
875c0872
DA
1893 eh->plt.offset = sec->size;
1894 sec->size += PLT_ENTRY_SIZE;
247d6c4c
AM
1895 if (bfd_link_pic (info))
1896 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
a8d02d66
AM
1897 }
1898 else
e5ee5df1
AM
1899 {
1900 /* No .plt entry needed. */
875c0872
DA
1901 eh->plt.offset = (bfd_vma) -1;
1902 eh->needs_plt = 0;
e5ee5df1
AM
1903 }
1904 }
1905 else
1906 {
875c0872
DA
1907 eh->plt.offset = (bfd_vma) -1;
1908 eh->needs_plt = 0;
a8d02d66
AM
1909 }
1910
b34976b6 1911 return TRUE;
a8d02d66
AM
1912}
1913
2e684e75
AM
1914/* Calculate size of GOT entries for symbol given its TLS_TYPE. */
1915
1916static inline unsigned int
1917got_entries_needed (int tls_type)
1918{
1919 unsigned int need = 0;
1920
1921 if ((tls_type & GOT_NORMAL) != 0)
1922 need += GOT_ENTRY_SIZE;
1923 if ((tls_type & GOT_TLS_GD) != 0)
1924 need += GOT_ENTRY_SIZE * 2;
1925 if ((tls_type & GOT_TLS_IE) != 0)
1926 need += GOT_ENTRY_SIZE;
1927 return need;
1928}
1929
1930/* Calculate size of relocs needed for symbol given its TLS_TYPE and
1931 NEEDed GOT entries. KNOWN says a TPREL offset can be calculated
1932 at link time. */
1933
1934static inline unsigned int
1935got_relocs_needed (int tls_type, unsigned int need, bfd_boolean known)
1936{
1937 /* All the entries we allocated need relocs.
1938 Except IE in executable with a local symbol. We could also omit
1939 the DTPOFF reloc on the second word of a GD entry under the same
1940 condition as that for IE, but ld.so might want to differentiate
1941 LD and GD entries at some stage. */
1942 if ((tls_type & GOT_TLS_IE) != 0 && known)
1943 need -= GOT_ENTRY_SIZE;
1944 return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE;
1945}
1946
4dc86686
AM
1947/* Allocate space in .plt, .got and associated reloc sections for
1948 global syms. */
1949
b34976b6 1950static bfd_boolean
875c0872 1951allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1952{
1953 struct bfd_link_info *info;
83c81bfe 1954 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1955 asection *sec;
1956 struct elf32_hppa_link_hash_entry *hh;
1957 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 1958
875c0872 1959 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1960 return TRUE;
73a74a62 1961
c39a58e6 1962 info = inf;
83c81bfe 1963 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1964 if (htab == NULL)
1965 return FALSE;
1966
875c0872 1967 hh = hppa_elf_hash_entry (eh);
68ffbac6 1968
a63e02c7 1969 if (htab->etab.dynamic_sections_created
875c0872
DA
1970 && eh->plt.offset != (bfd_vma) -1
1971 && !hh->plabel
1972 && eh->plt.refcount > 0)
4dc86686 1973 {
e5ee5df1 1974 /* Make an entry in the .plt section. */
ce558b89 1975 sec = htab->etab.splt;
875c0872
DA
1976 eh->plt.offset = sec->size;
1977 sec->size += PLT_ENTRY_SIZE;
3ac8354b 1978
e5ee5df1 1979 /* We also need to make an entry in the .rela.plt section. */
ce558b89 1980 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 1981 htab->need_plt_stub = 1;
4dc86686 1982 }
edd21aca 1983
875c0872 1984 if (eh->got.refcount > 0)
4dc86686 1985 {
2e684e75
AM
1986 unsigned int need;
1987
46434633 1988 if (!ensure_undef_dynamic (info, eh))
595e0a47 1989 return FALSE;
446f2863 1990
ce558b89 1991 sec = htab->etab.sgot;
875c0872 1992 eh->got.offset = sec->size;
2e684e75
AM
1993 need = got_entries_needed (hh->tls_type);
1994 sec->size += need;
a63e02c7 1995 if (htab->etab.dynamic_sections_created
0e1862bb 1996 && (bfd_link_pic (info)
875c0872 1997 || (eh->dynindx != -1
d336fa6d
AM
1998 && !SYMBOL_REFERENCES_LOCAL (info, eh)))
1999 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
ce757d15 2000 {
2e684e75
AM
2001 bfd_boolean tprel_known = (bfd_link_executable (info)
2002 && SYMBOL_REFERENCES_LOCAL (info, eh));
2003 htab->etab.srelgot->size
2004 += got_relocs_needed (hh->tls_type, need, tprel_known);
ce757d15 2005 }
4dc86686
AM
2006 }
2007 else
875c0872 2008 eh->got.offset = (bfd_vma) -1;
30667bf3 2009
d336fa6d
AM
2010 /* If no dynamic sections we can't have dynamic relocs. */
2011 if (!htab->etab.dynamic_sections_created)
2012 hh->dyn_relocs = NULL;
2013
875c0872 2014 if (hh->dyn_relocs == NULL)
b34976b6 2015 return TRUE;
30667bf3 2016
98ceb8ce
AM
2017 /* If this is a -Bsymbolic shared link, then we need to discard all
2018 space allocated for dynamic pc-relative relocs against symbols
2019 defined in a regular object. For the normal shared case, discard
2020 space for relocs that have become local due to symbol visibility
2021 changes. */
0e1862bb 2022 if (bfd_link_pic (info))
446f2863 2023 {
46434633
AM
2024 /* Discard relocs on undefined syms with non-default visibility. */
2025 if ((eh->root.type == bfd_link_hash_undefined
d336fa6d
AM
2026 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2027 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
46434633
AM
2028 hh->dyn_relocs = NULL;
2029
98ceb8ce 2030#if RELATIVE_DYNRELOCS
46434633 2031 else if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2032 {
875c0872 2033 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2034
875c0872 2035 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2036 {
875c0872
DA
2037 hdh_p->count -= hdh_p->relative_count;
2038 hdh_p->relative_count = 0;
2039 if (hdh_p->count == 0)
a63e02c7 2040 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2041 else
a63e02c7 2042 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2043 }
2044 }
2045#endif
4fc8051d 2046
46434633 2047 if (hh->dyn_relocs != NULL)
22d606e9 2048 {
46434633 2049 if (!ensure_undef_dynamic (info, eh))
595e0a47 2050 return FALSE;
22d606e9 2051 }
446f2863 2052 }
d336fa6d 2053 else if (ELIMINATE_COPY_RELOCS)
30667bf3 2054 {
98ceb8ce
AM
2055 /* For the non-shared case, discard space for relocs against
2056 symbols which turn out to need copy relocs or are not
2057 dynamic. */
68ffbac6 2058
875c0872 2059 if (!eh->non_got_ref
d336fa6d 2060 && !eh->def_regular)
98ceb8ce 2061 {
46434633 2062 if (!ensure_undef_dynamic (info, eh))
595e0a47 2063 return FALSE;
98ceb8ce 2064
46434633
AM
2065 if (eh->dynindx == -1)
2066 hh->dyn_relocs = NULL;
98ceb8ce 2067 }
46434633
AM
2068 else
2069 hh->dyn_relocs = NULL;
30667bf3 2070 }
30667bf3 2071
98ceb8ce 2072 /* Finally, allocate space. */
a63e02c7 2073 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2074 {
875c0872
DA
2075 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2076 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2077 }
30667bf3 2078
b34976b6 2079 return TRUE;
30667bf3 2080}
30667bf3 2081
d5c73c2f
AM
2082/* This function is called via elf_link_hash_traverse to force
2083 millicode symbols local so they do not end up as globals in the
2084 dynamic symbol table. We ought to be able to do this in
2085 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2086 for all dynamic symbols. Arguably, this is a bug in
2087 elf_adjust_dynamic_symbol. */
2088
b34976b6 2089static bfd_boolean
875c0872 2090clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2091 struct bfd_link_info *info)
d5c73c2f 2092{
875c0872
DA
2093 if (eh->type == STT_PARISC_MILLI
2094 && !eh->forced_local)
e0522e89 2095 {
875c0872 2096 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2097 }
b34976b6 2098 return TRUE;
d5c73c2f
AM
2099}
2100
127e8e9f
AM
2101/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2102 read-only sections. */
98ceb8ce 2103
b34976b6 2104static bfd_boolean
127e8e9f 2105maybe_set_textrel (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2106{
127e8e9f 2107 asection *sec;
98ceb8ce 2108
127e8e9f
AM
2109 if (eh->root.type == bfd_link_hash_indirect)
2110 return TRUE;
98ceb8ce 2111
127e8e9f
AM
2112 sec = readonly_dynrelocs (eh);
2113 if (sec != NULL)
2114 {
2115 struct bfd_link_info *info = (struct bfd_link_info *) inf;
98ceb8ce 2116
127e8e9f
AM
2117 info->flags |= DF_TEXTREL;
2118 info->callbacks->minfo
2119 (_("%B: dynamic relocation in read-only section `%A'\n"),
2120 sec->owner, sec);
98ceb8ce 2121
127e8e9f
AM
2122 /* Not an error, just cut short the traversal. */
2123 return FALSE;
98ceb8ce 2124 }
b34976b6 2125 return TRUE;
98ceb8ce
AM
2126}
2127
30667bf3
AM
2128/* Set the sizes of the dynamic sections. */
2129
b34976b6 2130static bfd_boolean
c39a58e6
AM
2131elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2132 struct bfd_link_info *info)
30667bf3 2133{
83c81bfe 2134 struct elf32_hppa_link_hash_table *htab;
30667bf3 2135 bfd *dynobj;
98ceb8ce 2136 bfd *ibfd;
875c0872 2137 asection *sec;
b34976b6 2138 bfd_boolean relocs;
30667bf3 2139
83c81bfe 2140 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2141 if (htab == NULL)
2142 return FALSE;
2143
a63e02c7 2144 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2145 if (dynobj == NULL)
2146 abort ();
30667bf3 2147
a63e02c7 2148 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2149 {
2150 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2151 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2152 {
3d4d4302 2153 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2154 if (sec == NULL)
49e9d0d3 2155 abort ();
875c0872
DA
2156 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2157 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2158 }
74d1c347 2159
d5c73c2f 2160 /* Force millicode symbols local. */
a63e02c7 2161 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2162 clobber_millicode_symbols,
2163 info);
68fb2e56 2164 }
d5c73c2f 2165
98ceb8ce
AM
2166 /* Set up .got and .plt offsets for local syms, and space for local
2167 dynamic relocs. */
c72f2fb2 2168 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2169 {
2170 bfd_signed_vma *local_got;
2171 bfd_signed_vma *end_local_got;
2172 bfd_signed_vma *local_plt;
2173 bfd_signed_vma *end_local_plt;
2174 bfd_size_type locsymcount;
2175 Elf_Internal_Shdr *symtab_hdr;
2176 asection *srel;
9b52905e 2177 char *local_tls_type;
74d1c347 2178
98ceb8ce 2179 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2180 continue;
4dc86686 2181
875c0872 2182 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2183 {
875c0872 2184 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2185
875c0872
DA
2186 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2187 elf_section_data (sec)->local_dynrel);
2188 hdh_p != NULL;
a63e02c7 2189 hdh_p = hdh_p->hdh_next)
98ceb8ce 2190 {
875c0872
DA
2191 if (!bfd_is_abs_section (hdh_p->sec)
2192 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2193 {
2194 /* Input section has been discarded, either because
2195 it is a copy of a linkonce section or due to
2196 linker script /DISCARD/, so we'll be discarding
2197 the relocs too. */
2198 }
875c0872 2199 else if (hdh_p->count != 0)
ec338859 2200 {
875c0872
DA
2201 srel = elf_section_data (hdh_p->sec)->sreloc;
2202 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2203 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2204 info->flags |= DF_TEXTREL;
ec338859 2205 }
98ceb8ce
AM
2206 }
2207 }
2208
2209 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2210 if (!local_got)
2211 continue;
74d1c347 2212
98ceb8ce 2213 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2214 locsymcount = symtab_hdr->sh_info;
2215 end_local_got = local_got + locsymcount;
9b52905e 2216 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
ce558b89
AM
2217 sec = htab->etab.sgot;
2218 srel = htab->etab.srelgot;
68fb2e56
AM
2219 for (; local_got < end_local_got; ++local_got)
2220 {
2221 if (*local_got > 0)
4dc86686 2222 {
2e684e75
AM
2223 unsigned int need;
2224
875c0872 2225 *local_got = sec->size;
2e684e75
AM
2226 need = got_entries_needed (*local_tls_type);
2227 sec->size += need;
0e1862bb 2228 if (bfd_link_pic (info))
2e684e75
AM
2229 {
2230 bfd_boolean tprel_known = bfd_link_executable (info);
2231 htab->etab.srelgot->size
2232 += got_relocs_needed (*local_tls_type, need, tprel_known);
2233 }
4dc86686 2234 }
68fb2e56
AM
2235 else
2236 *local_got = (bfd_vma) -1;
9b52905e
NC
2237
2238 ++local_tls_type;
68fb2e56 2239 }
74d1c347 2240
68fb2e56
AM
2241 local_plt = end_local_got;
2242 end_local_plt = local_plt + locsymcount;
a63e02c7 2243 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2244 {
2245 /* Won't be used, but be safe. */
2246 for (; local_plt < end_local_plt; ++local_plt)
2247 *local_plt = (bfd_vma) -1;
2248 }
2249 else
2250 {
ce558b89
AM
2251 sec = htab->etab.splt;
2252 srel = htab->etab.srelplt;
74d1c347
AM
2253 for (; local_plt < end_local_plt; ++local_plt)
2254 {
2255 if (*local_plt > 0)
2256 {
875c0872
DA
2257 *local_plt = sec->size;
2258 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2259 if (bfd_link_pic (info))
eea6121a 2260 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2261 }
2262 else
2263 *local_plt = (bfd_vma) -1;
2264 }
2265 }
30667bf3 2266 }
68ffbac6 2267
9b52905e
NC
2268 if (htab->tls_ldm_got.refcount > 0)
2269 {
68ffbac6 2270 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e 2271 R_PARISC_TLS_DTPMOD32 relocs. */
ce558b89
AM
2272 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2273 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2274 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2275 }
2276 else
2277 htab->tls_ldm_got.offset = -1;
30667bf3 2278
e5ee5df1
AM
2279 /* Do all the .plt entries without relocs first. The dynamic linker
2280 uses the last .plt reloc to find the end of the .plt (and hence
2281 the start of the .got) for lazy linking. */
a63e02c7 2282 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2283
98ceb8ce
AM
2284 /* Allocate global sym .plt and .got entries, and space for global
2285 sym dynamic relocs. */
a63e02c7 2286 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2287
2288 /* The check_relocs and adjust_dynamic_symbol entry points have
2289 determined the sizes of the various dynamic sections. Allocate
2290 memory for them. */
b34976b6 2291 relocs = FALSE;
875c0872 2292 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2293 {
875c0872 2294 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2295 continue;
2296
ce558b89 2297 if (sec == htab->etab.splt)
68fb2e56 2298 {
83c81bfe 2299 if (htab->need_plt_stub)
68fb2e56
AM
2300 {
2301 /* Make space for the plt stub at the end of the .plt
2302 section. We want this stub right at the end, up
2303 against the .got section. */
ce558b89 2304 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
875c0872 2305 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2306 bfd_size_type mask;
30667bf3 2307
68fb2e56 2308 if (gotalign > pltalign)
a253d456 2309 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2310 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2311 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2312 }
2313 }
ce558b89 2314 else if (sec == htab->etab.sgot
5474d94f
AM
2315 || sec == htab->etab.sdynbss
2316 || sec == htab->etab.sdynrelro)
68fb2e56 2317 ;
0112cd26 2318 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2319 {
875c0872 2320 if (sec->size != 0)
30667bf3 2321 {
4e12ff7f
AM
2322 /* Remember whether there are any reloc sections other
2323 than .rela.plt. */
ce558b89 2324 if (sec != htab->etab.srelplt)
b34976b6 2325 relocs = TRUE;
47d89dba 2326
30667bf3
AM
2327 /* We use the reloc_count field as a counter if we need
2328 to copy relocs into the output file. */
875c0872 2329 sec->reloc_count = 0;
30667bf3
AM
2330 }
2331 }
30667bf3
AM
2332 else
2333 {
2334 /* It's not one of our sections, so don't allocate space. */
2335 continue;
2336 }
2337
875c0872 2338 if (sec->size == 0)
30667bf3
AM
2339 {
2340 /* If we don't need this section, strip it from the
2341 output file. This is mostly to handle .rela.bss and
2342 .rela.plt. We must create both sections in
2343 create_dynamic_sections, because they must be created
2344 before the linker maps input sections to output
2345 sections. The linker does that before
2346 adjust_dynamic_symbol is called, and it is that
2347 function which decides whether anything needs to go
2348 into these sections. */
875c0872 2349 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2350 continue;
2351 }
2352
c456f082
AM
2353 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2354 continue;
2355
30667bf3
AM
2356 /* Allocate memory for the section contents. Zero it, because
2357 we may not fill in all the reloc sections. */
875c0872 2358 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2359 if (sec->contents == NULL)
b34976b6 2360 return FALSE;
30667bf3
AM
2361 }
2362
a63e02c7 2363 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2364 {
2365 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2366 actually has nothing to do with the PLT, it is how we
2367 communicate the LTP value of a load module to the dynamic
2368 linker. */
dc810e39 2369#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2370 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2371
2372 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2373 return FALSE;
30667bf3
AM
2374
2375 /* Add some entries to the .dynamic section. We fill in the
2376 values later, in elf32_hppa_finish_dynamic_sections, but we
2377 must add the entries now so that we get the correct size for
2378 the .dynamic section. The DT_DEBUG entry is filled in by the
2379 dynamic linker and used by the debugger. */
0e1862bb 2380 if (bfd_link_executable (info))
30667bf3 2381 {
dc810e39 2382 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2383 return FALSE;
30667bf3
AM
2384 }
2385
ce558b89 2386 if (htab->etab.srelplt->size != 0)
30667bf3 2387 {
dc810e39
AM
2388 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2389 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2390 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2391 return FALSE;
30667bf3
AM
2392 }
2393
2394 if (relocs)
2395 {
dc810e39
AM
2396 if (!add_dynamic_entry (DT_RELA, 0)
2397 || !add_dynamic_entry (DT_RELASZ, 0)
2398 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2399 return FALSE;
30667bf3 2400
98ceb8ce
AM
2401 /* If any dynamic relocs apply to a read-only section,
2402 then we need a DT_TEXTREL entry. */
248866a8 2403 if ((info->flags & DF_TEXTREL) == 0)
127e8e9f 2404 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
98ceb8ce
AM
2405
2406 if ((info->flags & DF_TEXTREL) != 0)
2407 {
2408 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2409 return FALSE;
98ceb8ce 2410 }
30667bf3
AM
2411 }
2412 }
dc810e39 2413#undef add_dynamic_entry
30667bf3 2414
b34976b6 2415 return TRUE;
30667bf3
AM
2416}
2417
30667bf3
AM
2418/* External entry points for sizing and building linker stubs. */
2419
b4655ea9
AM
2420/* Set up various things so that we can make a list of input sections
2421 for each output section included in the link. Returns -1 on error,
cedb70c5 2422 0 when no stubs will be needed, and 1 on success. */
30667bf3 2423
b4655ea9 2424int
c39a58e6 2425elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2426{
2427 bfd *input_bfd;
b4655ea9 2428 unsigned int bfd_count;
7292b3ac 2429 unsigned int top_id, top_index;
30667bf3 2430 asection *section;
25f72752 2431 asection **input_list, **list;
dc810e39 2432 bfd_size_type amt;
b4655ea9 2433 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2434
4dfe6ac6
NC
2435 if (htab == NULL)
2436 return -1;
2437
1badb539
AM
2438 /* Count the number of input BFDs and find the top input section id. */
2439 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2440 input_bfd != NULL;
c72f2fb2 2441 input_bfd = input_bfd->link.next)
30667bf3
AM
2442 {
2443 bfd_count += 1;
25f72752
AM
2444 for (section = input_bfd->sections;
2445 section != NULL;
2446 section = section->next)
2447 {
2448 if (top_id < section->id)
2449 top_id = section->id;
2450 }
30667bf3 2451 }
b4655ea9 2452 htab->bfd_count = bfd_count;
30667bf3 2453
dc810e39 2454 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2455 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2456 if (htab->stub_group == NULL)
b4655ea9 2457 return -1;
1badb539 2458
b4655ea9 2459 /* We can't use output_bfd->section_count here to find the top output
1badb539 2460 section index as some sections may have been removed, and
8423293d 2461 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2462 for (section = output_bfd->sections, top_index = 0;
2463 section != NULL;
2464 section = section->next)
2465 {
2466 if (top_index < section->index)
2467 top_index = section->index;
2468 }
2469
b4655ea9 2470 htab->top_index = top_index;
dc810e39 2471 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2472 input_list = bfd_malloc (amt);
b4655ea9 2473 htab->input_list = input_list;
25f72752 2474 if (input_list == NULL)
b4655ea9 2475 return -1;
25f72752 2476
1badb539
AM
2477 /* For sections we aren't interested in, mark their entries with a
2478 value we can check later. */
2479 list = input_list + top_index;
2480 do
2481 *list = bfd_abs_section_ptr;
2482 while (list-- != input_list);
2483
2484 for (section = output_bfd->sections;
2485 section != NULL;
2486 section = section->next)
2487 {
47d89dba 2488 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2489 input_list[section->index] = NULL;
2490 }
2491
b4655ea9
AM
2492 return 1;
2493}
2494
2495/* The linker repeatedly calls this function for each input section,
2496 in the order that input sections are linked into output sections.
2497 Build lists of input sections to determine groupings between which
2498 we may insert linker stubs. */
2499
2500void
c39a58e6 2501elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2502{
2503 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2504
4dfe6ac6
NC
2505 if (htab == NULL)
2506 return;
2507
b4655ea9 2508 if (isec->output_section->index <= htab->top_index)
25f72752 2509 {
b4655ea9
AM
2510 asection **list = htab->input_list + isec->output_section->index;
2511 if (*list != bfd_abs_section_ptr)
25f72752 2512 {
b4655ea9 2513 /* Steal the link_sec pointer for our list. */
83c81bfe 2514#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2515 /* This happens to make the list in reverse order,
2516 which is what we want. */
2517 PREV_SEC (isec) = *list;
2518 *list = isec;
25f72752
AM
2519 }
2520 }
b4655ea9 2521}
25f72752 2522
b4655ea9
AM
2523/* See whether we can group stub sections together. Grouping stub
2524 sections may result in fewer stubs. More importantly, we need to
2525 put all .init* and .fini* stubs at the beginning of the .init or
2526 .fini output sections respectively, because glibc splits the
2527 _init and _fini functions into multiple parts. Putting a stub in
2528 the middle of a function is not a good idea. */
2529
2530static void
c39a58e6
AM
2531group_sections (struct elf32_hppa_link_hash_table *htab,
2532 bfd_size_type stub_group_size,
2533 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2534{
2535 asection **list = htab->input_list + htab->top_index;
1badb539 2536 do
25f72752
AM
2537 {
2538 asection *tail = *list;
1badb539
AM
2539 if (tail == bfd_abs_section_ptr)
2540 continue;
25f72752
AM
2541 while (tail != NULL)
2542 {
2543 asection *curr;
2544 asection *prev;
2545 bfd_size_type total;
00b28bb0 2546 bfd_boolean big_sec;
25f72752
AM
2547
2548 curr = tail;
eea6121a 2549 total = tail->size;
00b28bb0
AM
2550 big_sec = total >= stub_group_size;
2551
25f72752
AM
2552 while ((prev = PREV_SEC (curr)) != NULL
2553 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2554 < stub_group_size))
25f72752
AM
2555 curr = prev;
2556
2557 /* OK, the size from the start of CURR to the end is less
a248e267 2558 than 240000 bytes and thus can be handled by one stub
25f72752 2559 section. (or the tail section is itself larger than
a248e267 2560 240000 bytes, in which case we may be toast.)
25f72752
AM
2561 We should really be keeping track of the total size of
2562 stubs added here, as stubs contribute to the final output
2563 section size. That's a little tricky, and this way will
a248e267
AM
2564 only break if stubs added total more than 22144 bytes, or
2565 2768 long branch stubs. It seems unlikely for more than
2566 2768 different functions to be called, especially from
2567 code only 240000 bytes long. This limit used to be
2568 250000, but c++ code tends to generate lots of little
2569 functions, and sometimes violated the assumption. */
25f72752
AM
2570 do
2571 {
2572 prev = PREV_SEC (tail);
2573 /* Set up this stub group. */
83c81bfe 2574 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2575 }
2576 while (tail != curr && (tail = prev) != NULL);
2577
a248e267 2578 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2579 bytes before the stub section can be handled by it too.
2580 Don't do this if we have a really large section after the
2581 stubs, as adding more stubs increases the chance that
2582 branches may not reach into the stub section. */
2583 if (!stubs_always_before_branch && !big_sec)
25f72752 2584 {
47d89dba
AM
2585 total = 0;
2586 while (prev != NULL
2587 && ((total += tail->output_offset - prev->output_offset)
2588 < stub_group_size))
2589 {
2590 tail = prev;
2591 prev = PREV_SEC (tail);
83c81bfe 2592 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2593 }
25f72752
AM
2594 }
2595 tail = prev;
2596 }
2597 }
b4655ea9
AM
2598 while (list-- != htab->input_list);
2599 free (htab->input_list);
1badb539 2600#undef PREV_SEC
b4655ea9
AM
2601}
2602
2603/* Read in all local syms for all input bfds, and create hash entries
2604 for export stubs if we are building a multi-subspace shared lib.
2605 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2606
2607static int
c39a58e6 2608get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2609{
2610 unsigned int bfd_indx;
2611 Elf_Internal_Sym *local_syms, **all_local_syms;
2612 int stub_changed = 0;
2613 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2614
4dfe6ac6
NC
2615 if (htab == NULL)
2616 return -1;
2617
30667bf3
AM
2618 /* We want to read in symbol extension records only once. To do this
2619 we need to read in the local symbols in parallel and save them for
2620 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2621 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2622 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2623 htab->all_local_syms = all_local_syms;
30667bf3 2624 if (all_local_syms == NULL)
b4655ea9 2625 return -1;
30667bf3
AM
2626
2627 /* Walk over all the input BFDs, swapping in local symbols.
2628 If we are creating a shared library, create hash entries for the
2629 export stubs. */
b4655ea9 2630 for (bfd_indx = 0;
30667bf3 2631 input_bfd != NULL;
c72f2fb2 2632 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2633 {
2634 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2635
252b5132
RH
2636 /* We'll need the symbol table in a second. */
2637 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2638 if (symtab_hdr->sh_info == 0)
2639 continue;
2640
6cdc0ccc
AM
2641 /* We need an array of the local symbols attached to the input bfd. */
2642 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2643 if (local_syms == NULL)
edd21aca 2644 {
6cdc0ccc
AM
2645 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2646 symtab_hdr->sh_info, 0,
2647 NULL, NULL, NULL);
2648 /* Cache them for elf_link_input_bfd. */
2649 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2650 }
6cdc0ccc
AM
2651 if (local_syms == NULL)
2652 return -1;
edd21aca 2653
6cdc0ccc 2654 all_local_syms[bfd_indx] = local_syms;
edd21aca 2655
0e1862bb 2656 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2657 {
875c0872
DA
2658 struct elf_link_hash_entry **eh_syms;
2659 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2660 unsigned int symcount;
2661
2662 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2663 - symtab_hdr->sh_info);
875c0872
DA
2664 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2665 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2666
2667 /* Look through the global syms for functions; We need to
2668 build export stubs for all globally visible functions. */
875c0872 2669 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2670 {
875c0872 2671 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2672
875c0872 2673 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2674
a63e02c7
DA
2675 while (hh->eh.root.type == bfd_link_hash_indirect
2676 || hh->eh.root.type == bfd_link_hash_warning)
2677 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2678
2679 /* At this point in the link, undefined syms have been
2680 resolved, so we need to check that the symbol was
2681 defined in this BFD. */
a63e02c7
DA
2682 if ((hh->eh.root.type == bfd_link_hash_defined
2683 || hh->eh.root.type == bfd_link_hash_defweak)
2684 && hh->eh.type == STT_FUNC
2685 && hh->eh.root.u.def.section->output_section != NULL
2686 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2687 == output_bfd)
a63e02c7
DA
2688 && hh->eh.root.u.def.section->owner == input_bfd
2689 && hh->eh.def_regular
2690 && !hh->eh.forced_local
2691 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2692 {
2693 asection *sec;
2694 const char *stub_name;
875c0872 2695 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2696
a63e02c7 2697 sec = hh->eh.root.u.def.section;
9b52905e 2698 stub_name = hh_name (hh);
a63e02c7 2699 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2700 stub_name,
b34976b6 2701 FALSE, FALSE);
875c0872 2702 if (hsh == NULL)
30667bf3 2703 {
875c0872
DA
2704 hsh = hppa_add_stub (stub_name, sec, htab);
2705 if (!hsh)
b4655ea9 2706 return -1;
30667bf3 2707
a63e02c7
DA
2708 hsh->target_value = hh->eh.root.u.def.value;
2709 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2710 hsh->stub_type = hppa_stub_export;
a63e02c7 2711 hsh->hh = hh;
30667bf3
AM
2712 stub_changed = 1;
2713 }
2714 else
2715 {
695344c0 2716 /* xgettext:c-format */
4eca0228
AM
2717 _bfd_error_handler (_("%B: duplicate export stub %s"),
2718 input_bfd, stub_name);
30667bf3
AM
2719 }
2720 }
2721 }
30667bf3
AM
2722 }
2723 }
edd21aca 2724
b4655ea9
AM
2725 return stub_changed;
2726}
2727
2728/* Determine and set the size of the stub section for a final link.
2729
2730 The basic idea here is to examine all the relocations looking for
2731 PC-relative calls to a target that is unreachable with a "bl"
2732 instruction. */
2733
b34976b6 2734bfd_boolean
c39a58e6
AM
2735elf32_hppa_size_stubs
2736 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2737 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2738 asection * (*add_stub_section) (const char *, asection *),
2739 void (*layout_sections_again) (void))
b4655ea9
AM
2740{
2741 bfd_size_type stub_group_size;
b34976b6
AM
2742 bfd_boolean stubs_always_before_branch;
2743 bfd_boolean stub_changed;
b4655ea9
AM
2744 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2745
4dfe6ac6
NC
2746 if (htab == NULL)
2747 return FALSE;
2748
b4655ea9
AM
2749 /* Stash our params away. */
2750 htab->stub_bfd = stub_bfd;
2751 htab->multi_subspace = multi_subspace;
2752 htab->add_stub_section = add_stub_section;
2753 htab->layout_sections_again = layout_sections_again;
2754 stubs_always_before_branch = group_size < 0;
2755 if (group_size < 0)
2756 stub_group_size = -group_size;
2757 else
2758 stub_group_size = group_size;
2759 if (stub_group_size == 1)
2760 {
2761 /* Default values. */
acc990f2
AM
2762 if (stubs_always_before_branch)
2763 {
2764 stub_group_size = 7680000;
2765 if (htab->has_17bit_branch || htab->multi_subspace)
2766 stub_group_size = 240000;
2767 if (htab->has_12bit_branch)
2768 stub_group_size = 7500;
2769 }
2770 else
2771 {
2772 stub_group_size = 6971392;
2773 if (htab->has_17bit_branch || htab->multi_subspace)
2774 stub_group_size = 217856;
2775 if (htab->has_12bit_branch)
2776 stub_group_size = 6808;
2777 }
b4655ea9
AM
2778 }
2779
2780 group_sections (htab, stub_group_size, stubs_always_before_branch);
2781
2782 switch (get_local_syms (output_bfd, info->input_bfds, info))
2783 {
2784 default:
2785 if (htab->all_local_syms)
2786 goto error_ret_free_local;
b34976b6 2787 return FALSE;
b4655ea9
AM
2788
2789 case 0:
b34976b6 2790 stub_changed = FALSE;
b4655ea9
AM
2791 break;
2792
2793 case 1:
b34976b6 2794 stub_changed = TRUE;
b4655ea9
AM
2795 break;
2796 }
2797
edd21aca
AM
2798 while (1)
2799 {
b4655ea9
AM
2800 bfd *input_bfd;
2801 unsigned int bfd_indx;
30667bf3
AM
2802 asection *stub_sec;
2803
25f72752 2804 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2805 input_bfd != NULL;
c72f2fb2 2806 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2807 {
2808 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2809 asection *section;
2810 Elf_Internal_Sym *local_syms;
30667bf3
AM
2811
2812 /* We'll need the symbol table in a second. */
2813 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2814 if (symtab_hdr->sh_info == 0)
2815 continue;
2816
b4655ea9 2817 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2818
2819 /* Walk over each section attached to the input bfd. */
2820 for (section = input_bfd->sections;
2821 section != NULL;
25f72752 2822 section = section->next)
30667bf3 2823 {
30667bf3
AM
2824 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2825
2826 /* If there aren't any relocs, then there's nothing more
2827 to do. */
2828 if ((section->flags & SEC_RELOC) == 0
2829 || section->reloc_count == 0)
2830 continue;
2831
25f72752
AM
2832 /* If this section is a link-once section that will be
2833 discarded, then don't create any stubs. */
2834 if (section->output_section == NULL
2835 || section->output_section->owner != output_bfd)
2836 continue;
2837
1e2f5b6e
AM
2838 /* Get the relocs. */
2839 internal_relocs
c39a58e6 2840 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2841 info->keep_memory);
30667bf3 2842 if (internal_relocs == NULL)
1e2f5b6e 2843 goto error_ret_free_local;
30667bf3
AM
2844
2845 /* Now examine each relocation. */
2846 irela = internal_relocs;
2847 irelaend = irela + section->reloc_count;
2848 for (; irela < irelaend; irela++)
2849 {
2850 unsigned int r_type, r_indx;
2851 enum elf32_hppa_stub_type stub_type;
875c0872 2852 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2853 asection *sym_sec;
2854 bfd_vma sym_value;
2855 bfd_vma destination;
875c0872 2856 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2857 char *stub_name;
25f72752 2858 const asection *id_sec;
30667bf3
AM
2859
2860 r_type = ELF32_R_TYPE (irela->r_info);
2861 r_indx = ELF32_R_SYM (irela->r_info);
2862
2863 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2864 {
2865 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2866 error_ret_free_internal:
2867 if (elf_section_data (section)->relocs == NULL)
2868 free (internal_relocs);
2869 goto error_ret_free_local;
30667bf3
AM
2870 }
2871
2872 /* Only look for stubs on call instructions. */
2873 if (r_type != (unsigned int) R_PARISC_PCREL12F
2874 && r_type != (unsigned int) R_PARISC_PCREL17F
2875 && r_type != (unsigned int) R_PARISC_PCREL22F)
2876 continue;
2877
2878 /* Now determine the call target, its name, value,
2879 section. */
2880 sym_sec = NULL;
2881 sym_value = 0;
2882 destination = 0;
875c0872 2883 hh = NULL;
30667bf3
AM
2884 if (r_indx < symtab_hdr->sh_info)
2885 {
2886 /* It's a local symbol. */
2887 Elf_Internal_Sym *sym;
2888 Elf_Internal_Shdr *hdr;
4fbb74a6 2889 unsigned int shndx;
30667bf3
AM
2890
2891 sym = local_syms + r_indx;
30667bf3
AM
2892 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2893 sym_value = sym->st_value;
4fbb74a6
AM
2894 shndx = sym->st_shndx;
2895 if (shndx < elf_numsections (input_bfd))
2896 {
2897 hdr = elf_elfsections (input_bfd)[shndx];
2898 sym_sec = hdr->bfd_section;
2899 destination = (sym_value + irela->r_addend
2900 + sym_sec->output_offset
2901 + sym_sec->output_section->vma);
2902 }
30667bf3
AM
2903 }
2904 else
2905 {
2906 /* It's an external symbol. */
2907 int e_indx;
2908
2909 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2910 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2911
a63e02c7
DA
2912 while (hh->eh.root.type == bfd_link_hash_indirect
2913 || hh->eh.root.type == bfd_link_hash_warning)
2914 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2915
a63e02c7
DA
2916 if (hh->eh.root.type == bfd_link_hash_defined
2917 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2918 {
a63e02c7
DA
2919 sym_sec = hh->eh.root.u.def.section;
2920 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2921 if (sym_sec->output_section != NULL)
2922 destination = (sym_value + irela->r_addend
2923 + sym_sec->output_offset
2924 + sym_sec->output_section->vma);
2925 }
a63e02c7 2926 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 2927 {
0e1862bb 2928 if (! bfd_link_pic (info))
c432ba1a
AM
2929 continue;
2930 }
a63e02c7 2931 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2932 {
59c2e50f 2933 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2934 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2935 == STV_DEFAULT)
a63e02c7 2936 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
2937 continue;
2938 }
30667bf3
AM
2939 else
2940 {
2941 bfd_set_error (bfd_error_bad_value);
2942 goto error_ret_free_internal;
2943 }
2944 }
2945
2946 /* Determine what (if any) linker stub is needed. */
875c0872 2947 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 2948 destination, info);
30667bf3
AM
2949 if (stub_type == hppa_stub_none)
2950 continue;
2951
25f72752 2952 /* Support for grouping stub sections. */
83c81bfe 2953 id_sec = htab->stub_group[section->id].link_sec;
25f72752 2954
30667bf3 2955 /* Get the name of this stub. */
875c0872 2956 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
2957 if (!stub_name)
2958 goto error_ret_free_internal;
2959
a63e02c7 2960 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2961 stub_name,
b34976b6 2962 FALSE, FALSE);
875c0872 2963 if (hsh != NULL)
30667bf3
AM
2964 {
2965 /* The proper stub has already been created. */
2966 free (stub_name);
2967 continue;
2968 }
2969
875c0872
DA
2970 hsh = hppa_add_stub (stub_name, section, htab);
2971 if (hsh == NULL)
30667bf3
AM
2972 {
2973 free (stub_name);
1e2f5b6e 2974 goto error_ret_free_internal;
30667bf3
AM
2975 }
2976
875c0872
DA
2977 hsh->target_value = sym_value;
2978 hsh->target_section = sym_sec;
2979 hsh->stub_type = stub_type;
0e1862bb 2980 if (bfd_link_pic (info))
30667bf3
AM
2981 {
2982 if (stub_type == hppa_stub_import)
875c0872 2983 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 2984 else if (stub_type == hppa_stub_long_branch)
875c0872 2985 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 2986 }
a63e02c7 2987 hsh->hh = hh;
b34976b6 2988 stub_changed = TRUE;
30667bf3
AM
2989 }
2990
2991 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
2992 if (elf_section_data (section)->relocs == NULL)
2993 free (internal_relocs);
30667bf3
AM
2994 }
2995 }
2996
2997 if (!stub_changed)
2998 break;
2999
3000 /* OK, we've added some stubs. Find out the new size of the
3001 stub sections. */
83c81bfe 3002 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3003 stub_sec != NULL;
3004 stub_sec = stub_sec->next)
a464198b
AM
3005 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3006 stub_sec->size = 0;
74d1c347 3007
a63e02c7 3008 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3009
30667bf3 3010 /* Ask the linker to do its stuff. */
83c81bfe 3011 (*htab->layout_sections_again) ();
b34976b6 3012 stub_changed = FALSE;
30667bf3
AM
3013 }
3014
6cdc0ccc 3015 free (htab->all_local_syms);
b34976b6 3016 return TRUE;
30667bf3
AM
3017
3018 error_ret_free_local:
b4655ea9 3019 free (htab->all_local_syms);
b34976b6 3020 return FALSE;
30667bf3
AM
3021}
3022
30667bf3
AM
3023/* For a final link, this function is called after we have sized the
3024 stubs to provide a value for __gp. */
3025
b34976b6 3026bfd_boolean
c39a58e6 3027elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3028{
b4655ea9
AM
3029 struct bfd_link_hash_entry *h;
3030 asection *sec = NULL;
3031 bfd_vma gp_val = 0;
30667bf3 3032
55ef6584 3033 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
30667bf3 3034
df8634e3 3035 if (h != NULL
b4655ea9
AM
3036 && (h->type == bfd_link_hash_defined
3037 || h->type == bfd_link_hash_defweak))
30667bf3 3038 {
b4655ea9
AM
3039 gp_val = h->u.def.value;
3040 sec = h->u.def.section;
30667bf3
AM
3041 }
3042 else
3043 {
0eddce27
AM
3044 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3045 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3046
74d1c347
AM
3047 /* Choose to point our LTP at, in this order, one of .plt, .got,
3048 or .data, if these sections exist. In the case of choosing
3049 .plt try to make the LTP ideal for addressing anywhere in the
3050 .plt or .got with a 14 bit signed offset. Typically, the end
3051 of the .plt is the start of the .got, so choose .plt + 0x2000
3052 if either the .plt or .got is larger than 0x2000. If both
3053 the .plt and .got are smaller than 0x2000, choose the end of
3054 the .plt section. */
225247f0
JT
3055 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3056 ? NULL : splt;
74d1c347 3057 if (sec != NULL)
30667bf3 3058 {
eea6121a
AM
3059 gp_val = sec->size;
3060 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3061 {
3062 gp_val = 0x2000;
3063 }
3064 }
3065 else
3066 {
b4655ea9 3067 sec = sgot;
74d1c347
AM
3068 if (sec != NULL)
3069 {
225247f0
JT
3070 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3071 {
3072 /* We know we don't have a .plt. If .got is large,
3073 offset our LTP. */
3074 if (sec->size > 0x2000)
3075 gp_val = 0x2000;
3076 }
74d1c347
AM
3077 }
3078 else
3079 {
3080 /* No .plt or .got. Who cares what the LTP is? */
3081 sec = bfd_get_section_by_name (abfd, ".data");
3082 }
30667bf3 3083 }
df8634e3
AM
3084
3085 if (h != NULL)
3086 {
b4655ea9
AM
3087 h->type = bfd_link_hash_defined;
3088 h->u.def.value = gp_val;
df8634e3 3089 if (sec != NULL)
b4655ea9 3090 h->u.def.section = sec;
df8634e3 3091 else
b4655ea9 3092 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3093 }
30667bf3
AM
3094 }
3095
55ef6584
AM
3096 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3097 {
3098 if (sec != NULL && sec->output_section != NULL)
3099 gp_val += sec->output_section->vma + sec->output_offset;
74d1c347 3100
55ef6584
AM
3101 elf_gp (abfd) = gp_val;
3102 }
b34976b6 3103 return TRUE;
30667bf3
AM
3104}
3105
30667bf3
AM
3106/* Build all the stubs associated with the current output file. The
3107 stubs are kept in a hash table attached to the main linker hash
3108 table. We also set up the .plt entries for statically linked PIC
3109 functions here. This function is called via hppaelf_finish in the
3110 linker. */
3111
b34976b6 3112bfd_boolean
c39a58e6 3113elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3114{
3115 asection *stub_sec;
3116 struct bfd_hash_table *table;
83c81bfe 3117 struct elf32_hppa_link_hash_table *htab;
30667bf3 3118
83c81bfe 3119 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3120 if (htab == NULL)
3121 return FALSE;
30667bf3 3122
83c81bfe 3123 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3124 stub_sec != NULL;
3125 stub_sec = stub_sec->next)
a464198b
AM
3126 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3127 && stub_sec->size != 0)
3128 {
3129 /* Allocate memory to hold the linker stubs. */
3130 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3131 if (stub_sec->contents == NULL)
3132 return FALSE;
3133 stub_sec->size = 0;
3134 }
30667bf3
AM
3135
3136 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3137 table = &htab->bstab;
30667bf3
AM
3138 bfd_hash_traverse (table, hppa_build_one_stub, info);
3139
b34976b6 3140 return TRUE;
30667bf3
AM
3141}
3142
9b52905e 3143/* Return the base vma address which should be subtracted from the real
68ffbac6 3144 address when resolving a dtpoff relocation.
9b52905e
NC
3145 This is PT_TLS segment p_vaddr. */
3146
3147static bfd_vma
3148dtpoff_base (struct bfd_link_info *info)
3149{
3150 /* If tls_sec is NULL, we should have signalled an error already. */
3151 if (elf_hash_table (info)->tls_sec == NULL)
3152 return 0;
3153 return elf_hash_table (info)->tls_sec->vma;
3154}
3155
3156/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3157
3158static bfd_vma
3159tpoff (struct bfd_link_info *info, bfd_vma address)
3160{
3161 struct elf_link_hash_table *htab = elf_hash_table (info);
3162
3163 /* If tls_sec is NULL, we should have signalled an error already. */
3164 if (htab->tls_sec == NULL)
3165 return 0;
68ffbac6 3166 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3167 tcbhead structure which has 2 pointer fields. */
68ffbac6 3168 return (address - htab->tls_sec->vma
9b52905e
NC
3169 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3170}
3171
c46b7515
AM
3172/* Perform a final link. */
3173
b34976b6 3174static bfd_boolean
c39a58e6 3175elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3176{
6d4b2867
JDA
3177 struct stat buf;
3178
4dc86686 3179 /* Invoke the regular ELF linker to do all the work. */
c152c796 3180 if (!bfd_elf_final_link (abfd, info))
b34976b6 3181 return FALSE;
c46b7515
AM
3182
3183 /* If we're producing a final executable, sort the contents of the
985142a4 3184 unwind section. */
0e1862bb 3185 if (bfd_link_relocatable (info))
d9f40817
DA
3186 return TRUE;
3187
6d4b2867
JDA
3188 /* Do not attempt to sort non-regular files. This is here
3189 especially for configure scripts and kernel builds which run
3190 tests with "ld [...] -o /dev/null". */
3191 if (stat (abfd->filename, &buf) != 0
3192 || !S_ISREG(buf.st_mode))
3193 return TRUE;
3194
46fe4e66 3195 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3196}
3197
3198/* Record the lowest address for the data and text segments. */
3199
3200static void
2ea37f1c 3201hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3202{
83c81bfe 3203 struct elf32_hppa_link_hash_table *htab;
c46b7515 3204
875c0872 3205 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3206 if (htab == NULL)
3207 return;
c46b7515
AM
3208
3209 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3210 {
2ea37f1c
NC
3211 bfd_vma value;
3212 Elf_Internal_Phdr *p;
3213
3214 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3215 BFD_ASSERT (p != NULL);
3216 value = p->p_vaddr;
c46b7515
AM
3217
3218 if ((section->flags & SEC_READONLY) != 0)
3219 {
83c81bfe
AM
3220 if (value < htab->text_segment_base)
3221 htab->text_segment_base = value;
c46b7515
AM
3222 }
3223 else
3224 {
83c81bfe
AM
3225 if (value < htab->data_segment_base)
3226 htab->data_segment_base = value;
c46b7515
AM
3227 }
3228 }
3229}
3230
30667bf3
AM
3231/* Perform a relocation as part of a final link. */
3232
3233static bfd_reloc_status_type
c39a58e6
AM
3234final_link_relocate (asection *input_section,
3235 bfd_byte *contents,
875c0872 3236 const Elf_Internal_Rela *rela,
c39a58e6
AM
3237 bfd_vma value,
3238 struct elf32_hppa_link_hash_table *htab,
3239 asection *sym_sec,
875c0872 3240 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3241 struct bfd_link_info *info)
30667bf3
AM
3242{
3243 int insn;
875c0872 3244 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3245 unsigned int orig_r_type = r_type;
30667bf3
AM
3246 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3247 int r_format = howto->bitsize;
3248 enum hppa_reloc_field_selector_type_alt r_field;
3249 bfd *input_bfd = input_section->owner;
875c0872 3250 bfd_vma offset = rela->r_offset;
30667bf3
AM
3251 bfd_vma max_branch_offset = 0;
3252 bfd_byte *hit_data = contents + offset;
875c0872 3253 bfd_signed_vma addend = rela->r_addend;
30667bf3 3254 bfd_vma location;
875c0872 3255 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3256 int val;
30667bf3
AM
3257
3258 if (r_type == R_PARISC_NONE)
3259 return bfd_reloc_ok;
3260
3261 insn = bfd_get_32 (input_bfd, hit_data);
3262
3263 /* Find out where we are and where we're going. */
3264 location = (offset +
3265 input_section->output_offset +
3266 input_section->output_section->vma);
3267
a252afa4
DA
3268 /* If we are not building a shared library, convert DLTIND relocs to
3269 DPREL relocs. */
0e1862bb 3270 if (!bfd_link_pic (info))
a252afa4
DA
3271 {
3272 switch (r_type)
4fc8051d
AM
3273 {
3274 case R_PARISC_DLTIND21L:
143bb599
DA
3275 case R_PARISC_TLS_GD21L:
3276 case R_PARISC_TLS_LDM21L:
3277 case R_PARISC_TLS_IE21L:
4fc8051d 3278 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3279 break;
3280
4fc8051d 3281 case R_PARISC_DLTIND14R:
143bb599
DA
3282 case R_PARISC_TLS_GD14R:
3283 case R_PARISC_TLS_LDM14R:
3284 case R_PARISC_TLS_IE14R:
4fc8051d 3285 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3286 break;
3287
4fc8051d
AM
3288 case R_PARISC_DLTIND14F:
3289 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3290 break;
3291 }
3292 }
3293
30667bf3
AM
3294 switch (r_type)
3295 {
3296 case R_PARISC_PCREL12F:
3297 case R_PARISC_PCREL17F:
3298 case R_PARISC_PCREL22F:
067fa4a6
AM
3299 /* If this call should go via the plt, find the import stub in
3300 the stub hash. */
30667bf3
AM
3301 if (sym_sec == NULL
3302 || sym_sec->output_section == NULL
875c0872 3303 || (hh != NULL
a63e02c7
DA
3304 && hh->eh.plt.offset != (bfd_vma) -1
3305 && hh->eh.dynindx != -1
875c0872 3306 && !hh->plabel
0e1862bb 3307 && (bfd_link_pic (info)
a63e02c7
DA
3308 || !hh->eh.def_regular
3309 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3310 {
875c0872
DA
3311 hsh = hppa_get_stub_entry (input_section, sym_sec,
3312 hh, rela, htab);
3313 if (hsh != NULL)
30667bf3 3314 {
875c0872
DA
3315 value = (hsh->stub_offset
3316 + hsh->stub_sec->output_offset
3317 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3318 addend = 0;
3319 }
875c0872 3320 else if (sym_sec == NULL && hh != NULL
a63e02c7 3321 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3322 {
db20fd76
AM
3323 /* It's OK if undefined weak. Calls to undefined weak
3324 symbols behave as if the "called" function
3325 immediately returns. We can thus call to a weak
3326 function without first checking whether the function
3327 is defined. */
30667bf3 3328 value = location;
db20fd76 3329 addend = 8;
30667bf3
AM
3330 }
3331 else
f09ebc7d 3332 return bfd_reloc_undefined;
30667bf3
AM
3333 }
3334 /* Fall thru. */
3335
3336 case R_PARISC_PCREL21L:
3337 case R_PARISC_PCREL17C:
3338 case R_PARISC_PCREL17R:
3339 case R_PARISC_PCREL14R:
3340 case R_PARISC_PCREL14F:
36751eee 3341 case R_PARISC_PCREL32:
30667bf3
AM
3342 /* Make it a pc relative offset. */
3343 value -= location;
3344 addend -= 8;
3345 break;
3346
3347 case R_PARISC_DPREL21L:
3348 case R_PARISC_DPREL14R:
3349 case R_PARISC_DPREL14F:
a252afa4
DA
3350 /* Convert instructions that use the linkage table pointer (r19) to
3351 instructions that use the global data pointer (dp). This is the
3352 most efficient way of using PIC code in an incomplete executable,
3353 but the user must follow the standard runtime conventions for
3354 accessing data for this to work. */
143bb599 3355 if (orig_r_type != r_type)
a252afa4 3356 {
143bb599
DA
3357 if (r_type == R_PARISC_DPREL21L)
3358 {
3359 /* GCC sometimes uses a register other than r19 for the
3360 operation, so we must convert any addil instruction
3361 that uses this relocation. */
3362 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3363 insn = ADDIL_DP;
3364 else
3365 /* We must have a ldil instruction. It's too hard to find
3366 and convert the associated add instruction, so issue an
3367 error. */
4eca0228 3368 _bfd_error_handler
695344c0 3369 /* xgettext:c-format */
d42c267e 3370 (_("%B(%A+%#Lx): %s fixup for insn %#x is not supported in a non-shared link"),
143bb599
DA
3371 input_bfd,
3372 input_section,
d42c267e 3373 offset,
143bb599
DA
3374 howto->name,
3375 insn);
3376 }
3377 else if (r_type == R_PARISC_DPREL14F)
3378 {
3379 /* This must be a format 1 load/store. Change the base
3380 register to dp. */
3381 insn = (insn & 0xfc1ffff) | (27 << 21);
3382 }
a252afa4
DA
3383 }
3384
143bb599
DA
3385 /* For all the DP relative relocations, we need to examine the symbol's
3386 section. If it has no section or if it's a code section, then
3387 "data pointer relative" makes no sense. In that case we don't
3388 adjust the "value", and for 21 bit addil instructions, we change the
3389 source addend register from %dp to %r0. This situation commonly
3390 arises for undefined weak symbols and when a variable's "constness"
3391 is declared differently from the way the variable is defined. For
3392 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3393 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3394 {
3395 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3396 == (((int) OP_ADDIL << 26) | (27 << 21)))
3397 {
3398 insn &= ~ (0x1f << 21);
30667bf3
AM
3399 }
3400 /* Now try to make things easy for the dynamic linker. */
3401
3402 break;
3403 }
74d1c347 3404 /* Fall thru. */
30667bf3
AM
3405
3406 case R_PARISC_DLTIND21L:
3407 case R_PARISC_DLTIND14R:
3408 case R_PARISC_DLTIND14F:
143bb599
DA
3409 case R_PARISC_TLS_GD21L:
3410 case R_PARISC_TLS_LDM21L:
3411 case R_PARISC_TLS_IE21L:
9b52905e 3412 case R_PARISC_TLS_GD14R:
9b52905e 3413 case R_PARISC_TLS_LDM14R:
9b52905e 3414 case R_PARISC_TLS_IE14R:
30667bf3
AM
3415 value -= elf_gp (input_section->output_section->owner);
3416 break;
3417
c46b7515
AM
3418 case R_PARISC_SEGREL32:
3419 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3420 value -= htab->text_segment_base;
c46b7515 3421 else
83c81bfe 3422 value -= htab->data_segment_base;
c46b7515
AM
3423 break;
3424
30667bf3
AM
3425 default:
3426 break;
3427 }
3428
3429 switch (r_type)
3430 {
3431 case R_PARISC_DIR32:
47d89dba 3432 case R_PARISC_DIR14F:
30667bf3
AM
3433 case R_PARISC_DIR17F:
3434 case R_PARISC_PCREL17C:
3435 case R_PARISC_PCREL14F:
36751eee 3436 case R_PARISC_PCREL32:
30667bf3
AM
3437 case R_PARISC_DPREL14F:
3438 case R_PARISC_PLABEL32:
3439 case R_PARISC_DLTIND14F:
3440 case R_PARISC_SEGBASE:
3441 case R_PARISC_SEGREL32:
9b52905e
NC
3442 case R_PARISC_TLS_DTPMOD32:
3443 case R_PARISC_TLS_DTPOFF32:
3444 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3445 r_field = e_fsel;
3446 break;
3447
1bf42538 3448 case R_PARISC_DLTIND21L:
30667bf3 3449 case R_PARISC_PCREL21L:
30667bf3 3450 case R_PARISC_PLABEL21L:
1bf42538
JL
3451 r_field = e_lsel;
3452 break;
3453
3454 case R_PARISC_DIR21L:
3455 case R_PARISC_DPREL21L:
9b52905e
NC
3456 case R_PARISC_TLS_GD21L:
3457 case R_PARISC_TLS_LDM21L:
3458 case R_PARISC_TLS_LDO21L:
3459 case R_PARISC_TLS_IE21L:
3460 case R_PARISC_TLS_LE21L:
30667bf3
AM
3461 r_field = e_lrsel;
3462 break;
3463
30667bf3 3464 case R_PARISC_PCREL17R:
30667bf3 3465 case R_PARISC_PCREL14R:
30667bf3
AM
3466 case R_PARISC_PLABEL14R:
3467 case R_PARISC_DLTIND14R:
1bf42538
JL
3468 r_field = e_rsel;
3469 break;
3470
3471 case R_PARISC_DIR17R:
3472 case R_PARISC_DIR14R:
3473 case R_PARISC_DPREL14R:
9b52905e
NC
3474 case R_PARISC_TLS_GD14R:
3475 case R_PARISC_TLS_LDM14R:
3476 case R_PARISC_TLS_LDO14R:
3477 case R_PARISC_TLS_IE14R:
3478 case R_PARISC_TLS_LE14R:
30667bf3
AM
3479 r_field = e_rrsel;
3480 break;
3481
3482 case R_PARISC_PCREL12F:
3483 case R_PARISC_PCREL17F:
3484 case R_PARISC_PCREL22F:
3485 r_field = e_fsel;
3486
3487 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3488 {
3489 max_branch_offset = (1 << (17-1)) << 2;
3490 }
3491 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3492 {
3493 max_branch_offset = (1 << (12-1)) << 2;
3494 }
3495 else
3496 {
3497 max_branch_offset = (1 << (22-1)) << 2;
3498 }
3499
3500 /* sym_sec is NULL on undefined weak syms or when shared on
3501 undefined syms. We've already checked for a stub for the
3502 shared undefined case. */
3503 if (sym_sec == NULL)
3504 break;
3505
3506 /* If the branch is out of reach, then redirect the
3507 call to the local stub for this function. */
3508 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3509 {
875c0872
DA
3510 hsh = hppa_get_stub_entry (input_section, sym_sec,
3511 hh, rela, htab);
3512 if (hsh == NULL)
f09ebc7d 3513 return bfd_reloc_undefined;
30667bf3
AM
3514
3515 /* Munge up the value and addend so that we call the stub
3516 rather than the procedure directly. */
875c0872
DA
3517 value = (hsh->stub_offset
3518 + hsh->stub_sec->output_offset
3519 + hsh->stub_sec->output_section->vma
30667bf3
AM
3520 - location);
3521 addend = -8;
3522 }
3523 break;
3524
3525 /* Something we don't know how to handle. */
3526 default:
3527 return bfd_reloc_notsupported;
3528 }
3529
3530 /* Make sure we can reach the stub. */
3531 if (max_branch_offset != 0
3532 && value + addend + max_branch_offset >= 2*max_branch_offset)
3533 {
4eca0228 3534 _bfd_error_handler
695344c0 3535 /* xgettext:c-format */
d42c267e 3536 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
d003868e
AM
3537 input_bfd,
3538 input_section,
d42c267e 3539 offset,
a63e02c7 3540 hsh->bh_root.string);
ce757d15 3541 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3542 return bfd_reloc_notsupported;
3543 }
3544
3545 val = hppa_field_adjust (value, addend, r_field);
3546
3547 switch (r_type)
3548 {
3549 case R_PARISC_PCREL12F:
3550 case R_PARISC_PCREL17C:
3551 case R_PARISC_PCREL17F:
3552 case R_PARISC_PCREL17R:
3553 case R_PARISC_PCREL22F:
3554 case R_PARISC_DIR17F:
3555 case R_PARISC_DIR17R:
3556 /* This is a branch. Divide the offset by four.
3557 Note that we need to decide whether it's a branch or
3558 otherwise by inspecting the reloc. Inspecting insn won't
3559 work as insn might be from a .word directive. */
3560 val >>= 2;
3561 break;
3562
3563 default:
3564 break;
3565 }
3566
3567 insn = hppa_rebuild_insn (insn, val, r_format);
3568
3569 /* Update the instruction word. */
74d1c347 3570 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3571 return bfd_reloc_ok;
3572}
3573
30667bf3
AM
3574/* Relocate an HPPA ELF section. */
3575
b34976b6 3576static bfd_boolean
c39a58e6
AM
3577elf32_hppa_relocate_section (bfd *output_bfd,
3578 struct bfd_link_info *info,
3579 bfd *input_bfd,
3580 asection *input_section,
3581 bfd_byte *contents,
3582 Elf_Internal_Rela *relocs,
3583 Elf_Internal_Sym *local_syms,
3584 asection **local_sections)
30667bf3 3585{
30667bf3 3586 bfd_vma *local_got_offsets;
83c81bfe 3587 struct elf32_hppa_link_hash_table *htab;
30667bf3 3588 Elf_Internal_Shdr *symtab_hdr;
875c0872 3589 Elf_Internal_Rela *rela;
30667bf3 3590 Elf_Internal_Rela *relend;
30667bf3
AM
3591
3592 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3593
83c81bfe 3594 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3595 if (htab == NULL)
3596 return FALSE;
3597
74d1c347 3598 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3599
875c0872 3600 rela = relocs;
30667bf3 3601 relend = relocs + input_section->reloc_count;
875c0872 3602 for (; rela < relend; rela++)
30667bf3
AM
3603 {
3604 unsigned int r_type;
3605 reloc_howto_type *howto;
3606 unsigned int r_symndx;
875c0872 3607 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3608 Elf_Internal_Sym *sym;
3609 asection *sym_sec;
3610 bfd_vma relocation;
875c0872 3611 bfd_reloc_status_type rstatus;
30667bf3 3612 const char *sym_name;
b34976b6
AM
3613 bfd_boolean plabel;
3614 bfd_boolean warned_undef;
30667bf3 3615
875c0872 3616 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3617 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3618 {
3619 bfd_set_error (bfd_error_bad_value);
b34976b6 3620 return FALSE;
30667bf3
AM
3621 }
3622 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3623 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3624 continue;
3625
875c0872
DA
3626 r_symndx = ELF32_R_SYM (rela->r_info);
3627 hh = NULL;
30667bf3
AM
3628 sym = NULL;
3629 sym_sec = NULL;
b34976b6 3630 warned_undef = FALSE;
30667bf3
AM
3631 if (r_symndx < symtab_hdr->sh_info)
3632 {
3633 /* This is a local symbol, h defaults to NULL. */
3634 sym = local_syms + r_symndx;
3635 sym_sec = local_sections[r_symndx];
875c0872 3636 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3637 }
3638 else
3639 {
875c0872 3640 struct elf_link_hash_entry *eh;
62d887d4 3641 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3642 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3643
875c0872 3644 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3645 r_symndx, symtab_hdr, sym_hashes,
875c0872 3646 eh, sym_sec, relocation,
62d887d4
L
3647 unresolved_reloc, warned_undef,
3648 ignored);
560e09e9 3649
0e1862bb 3650 if (!bfd_link_relocatable (info)
ab96bf03 3651 && relocation == 0
875c0872
DA
3652 && eh->root.type != bfd_link_hash_defined
3653 && eh->root.type != bfd_link_hash_defweak
3654 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3655 {
59c2e50f 3656 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3657 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3658 && eh->type == STT_PARISC_MILLI)
560e09e9 3659 {
1a72702b
AM
3660 (*info->callbacks->undefined_symbol)
3661 (info, eh_name (eh), input_bfd,
3662 input_section, rela->r_offset, FALSE);
560e09e9
NC
3663 warned_undef = TRUE;
3664 }
30667bf3 3665 }
875c0872 3666 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3667 }
3668
dbaa2011 3669 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3670 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3671 rela, 1, relend,
3672 elf_hppa_howto_table + r_type, 0,
e4067dbb 3673 contents);
ab96bf03 3674
0e1862bb 3675 if (bfd_link_relocatable (info))
ab96bf03
AM
3676 continue;
3677
30667bf3 3678 /* Do any required modifications to the relocation value, and
25f72752
AM
3679 determine what types of dynamic info we need to output, if
3680 any. */
74d1c347 3681 plabel = 0;
30667bf3
AM
3682 switch (r_type)
3683 {
3684 case R_PARISC_DLTIND14F:
3685 case R_PARISC_DLTIND14R:
3686 case R_PARISC_DLTIND21L:
ce757d15
AM
3687 {
3688 bfd_vma off;
d336fa6d
AM
3689 bfd_boolean do_got = FALSE;
3690 bfd_boolean reloc = bfd_link_pic (info);
ce757d15
AM
3691
3692 /* Relocation is to the entry for this symbol in the
3693 global offset table. */
875c0872 3694 if (hh != NULL)
ce757d15 3695 {
b34976b6 3696 bfd_boolean dyn;
ce757d15 3697
a63e02c7
DA
3698 off = hh->eh.got.offset;
3699 dyn = htab->etab.dynamic_sections_created;
d336fa6d
AM
3700 reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)
3701 && (reloc
3702 || (hh->eh.dynindx != -1
3703 && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))));
3704 if (!reloc
3705 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3706 bfd_link_pic (info),
3707 &hh->eh))
ce757d15
AM
3708 {
3709 /* If we aren't going to call finish_dynamic_symbol,
3710 then we need to handle initialisation of the .got
3711 entry and create needed relocs here. Since the
3712 offset must always be a multiple of 4, we use the
3713 least significant bit to record whether we have
3714 initialised it already. */
3715 if ((off & 1) != 0)
3716 off &= ~1;
3717 else
3718 {
a63e02c7 3719 hh->eh.got.offset |= 1;
d336fa6d 3720 do_got = TRUE;
ce757d15
AM
3721 }
3722 }
3723 }
3724 else
3725 {
3726 /* Local symbol case. */
3727 if (local_got_offsets == NULL)
3728 abort ();
3729
3730 off = local_got_offsets[r_symndx];
3731
3732 /* The offset must always be a multiple of 4. We use
3733 the least significant bit to record whether we have
3734 already generated the necessary reloc. */
3735 if ((off & 1) != 0)
3736 off &= ~1;
3737 else
3738 {
3739 local_got_offsets[r_symndx] |= 1;
d336fa6d 3740 do_got = TRUE;
ce757d15
AM
3741 }
3742 }
68fb2e56 3743
ce757d15
AM
3744 if (do_got)
3745 {
d336fa6d 3746 if (reloc)
ce757d15
AM
3747 {
3748 /* Output a dynamic relocation for this GOT entry.
3749 In this case it is relative to the base of the
3750 object because the symbol index is zero. */
3751 Elf_Internal_Rela outrel;
947216bf 3752 bfd_byte *loc;
ce558b89 3753 asection *sec = htab->etab.srelgot;
ce757d15
AM
3754
3755 outrel.r_offset = (off
ce558b89
AM
3756 + htab->etab.sgot->output_offset
3757 + htab->etab.sgot->output_section->vma);
ce757d15
AM
3758 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3759 outrel.r_addend = relocation;
875c0872
DA
3760 loc = sec->contents;
3761 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3762 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3763 }
3764 else
30667bf3 3765 bfd_put_32 (output_bfd, relocation,
ce558b89 3766 htab->etab.sgot->contents + off);
ce757d15 3767 }
30667bf3 3768
ce757d15
AM
3769 if (off >= (bfd_vma) -2)
3770 abort ();
30667bf3 3771
ce757d15
AM
3772 /* Add the base of the GOT to the relocation value. */
3773 relocation = (off
ce558b89
AM
3774 + htab->etab.sgot->output_offset
3775 + htab->etab.sgot->output_section->vma);
ce757d15 3776 }
30667bf3 3777 break;
252b5132 3778
c46b7515
AM
3779 case R_PARISC_SEGREL32:
3780 /* If this is the first SEGREL relocation, then initialize
3781 the segment base values. */
83c81bfe
AM
3782 if (htab->text_segment_base == (bfd_vma) -1)
3783 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3784 break;
3785
30667bf3
AM
3786 case R_PARISC_PLABEL14R:
3787 case R_PARISC_PLABEL21L:
3788 case R_PARISC_PLABEL32:
a63e02c7 3789 if (htab->etab.dynamic_sections_created)
252b5132 3790 {
ce757d15 3791 bfd_vma off;
b34976b6 3792 bfd_boolean do_plt = 0;
74d1c347
AM
3793 /* If we have a global symbol with a PLT slot, then
3794 redirect this relocation to it. */
875c0872 3795 if (hh != NULL)
74d1c347 3796 {
a63e02c7 3797 off = hh->eh.plt.offset;
0e1862bb
L
3798 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3799 bfd_link_pic (info),
a63e02c7 3800 &hh->eh))
8dea1268
AM
3801 {
3802 /* In a non-shared link, adjust_dynamic_symbols
3803 isn't called for symbols forced local. We
dc810e39 3804 need to write out the plt entry here. */
8dea1268
AM
3805 if ((off & 1) != 0)
3806 off &= ~1;
3807 else
3808 {
a63e02c7 3809 hh->eh.plt.offset |= 1;
ce757d15 3810 do_plt = 1;
8dea1268
AM
3811 }
3812 }
74d1c347
AM
3813 }
3814 else
3815 {
68fb2e56
AM
3816 bfd_vma *local_plt_offsets;
3817
3818 if (local_got_offsets == NULL)
3819 abort ();
74d1c347 3820
68fb2e56
AM
3821 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3822 off = local_plt_offsets[r_symndx];
74d1c347
AM
3823
3824 /* As for the local .got entry case, we use the last
3825 bit to record whether we've already initialised
3826 this local .plt entry. */
3827 if ((off & 1) != 0)
3828 off &= ~1;
ce757d15
AM
3829 else
3830 {
3831 local_plt_offsets[r_symndx] |= 1;
3832 do_plt = 1;
3833 }
3834 }
3835
3836 if (do_plt)
3837 {
0e1862bb 3838 if (bfd_link_pic (info))
ce757d15
AM
3839 {
3840 /* Output a dynamic IPLT relocation for this
3841 PLT entry. */
3842 Elf_Internal_Rela outrel;
947216bf 3843 bfd_byte *loc;
ce558b89 3844 asection *s = htab->etab.srelplt;
ce757d15
AM
3845
3846 outrel.r_offset = (off
ce558b89
AM
3847 + htab->etab.splt->output_offset
3848 + htab->etab.splt->output_section->vma);
ce757d15
AM
3849 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3850 outrel.r_addend = relocation;
947216bf
AM
3851 loc = s->contents;
3852 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3853 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3854 }
74d1c347
AM
3855 else
3856 {
3857 bfd_put_32 (output_bfd,
3858 relocation,
ce558b89 3859 htab->etab.splt->contents + off);
74d1c347 3860 bfd_put_32 (output_bfd,
ce558b89
AM
3861 elf_gp (htab->etab.splt->output_section->owner),
3862 htab->etab.splt->contents + off + 4);
74d1c347
AM
3863 }
3864 }
3865
68fb2e56 3866 if (off >= (bfd_vma) -2)
49e9d0d3 3867 abort ();
74d1c347
AM
3868
3869 /* PLABELs contain function pointers. Relocation is to
3870 the entry for the function in the .plt. The magic +2
3871 offset signals to $$dyncall that the function pointer
3872 is in the .plt and thus has a gp pointer too.
3873 Exception: Undefined PLABELs should have a value of
3874 zero. */
875c0872 3875 if (hh == NULL
a63e02c7
DA
3876 || (hh->eh.root.type != bfd_link_hash_undefweak
3877 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3878 {
3879 relocation = (off
ce558b89
AM
3880 + htab->etab.splt->output_offset
3881 + htab->etab.splt->output_section->vma
74d1c347
AM
3882 + 2);
3883 }
3884 plabel = 1;
30667bf3 3885 }
1a0670f3 3886 /* Fall through. */
30667bf3
AM
3887
3888 case R_PARISC_DIR17F:
3889 case R_PARISC_DIR17R:
47d89dba 3890 case R_PARISC_DIR14F:
30667bf3
AM
3891 case R_PARISC_DIR14R:
3892 case R_PARISC_DIR21L:
3893 case R_PARISC_DPREL14F:
3894 case R_PARISC_DPREL14R:
3895 case R_PARISC_DPREL21L:
3896 case R_PARISC_DIR32:
b1e24c02 3897 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3898 break;
3899
30667bf3 3900 /* The reloc types handled here and this conditional
56882138 3901 expression must match the code in ..check_relocs and
ec338859 3902 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3903 as in ..check_relocs, with some extra conditions (dynindx
3904 test in this case) to cater for relocs removed by
d336fa6d 3905 allocate_dynrelocs. */
0e1862bb 3906 if ((bfd_link_pic (info)
d336fa6d
AM
3907 && !(hh != NULL
3908 && ((hh->eh.root.type == bfd_link_hash_undefined
3909 && ELF_ST_VISIBILITY (hh->eh.other) != STV_DEFAULT)
3910 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)))
446f2863 3911 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3912 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
d336fa6d
AM
3913 || (ELIMINATE_COPY_RELOCS
3914 && !bfd_link_pic (info)
875c0872 3915 && hh != NULL
a63e02c7
DA
3916 && hh->eh.dynindx != -1
3917 && !hh->eh.non_got_ref
d336fa6d 3918 && !hh->eh.def_regular))
30667bf3
AM
3919 {
3920 Elf_Internal_Rela outrel;
b34976b6 3921 bfd_boolean skip;
98ceb8ce 3922 asection *sreloc;
947216bf 3923 bfd_byte *loc;
252b5132 3924
30667bf3
AM
3925 /* When generating a shared object, these relocations
3926 are copied into the output file to be resolved at run
3927 time. */
252b5132 3928
875c0872 3929 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3930 outrel.r_offset =
3931 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3932 rela->r_offset);
0bb2d96a
JJ
3933 skip = (outrel.r_offset == (bfd_vma) -1
3934 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3935 outrel.r_offset += (input_section->output_offset
3936 + input_section->output_section->vma);
68ffbac6 3937
30667bf3 3938 if (skip)
252b5132 3939 {
30667bf3 3940 memset (&outrel, 0, sizeof (outrel));
252b5132 3941 }
875c0872 3942 else if (hh != NULL
a63e02c7 3943 && hh->eh.dynindx != -1
74d1c347 3944 && (plabel
446f2863 3945 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 3946 || !bfd_link_pic (info)
a496fbc8 3947 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 3948 || !hh->eh.def_regular))
252b5132 3949 {
a63e02c7 3950 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
3951 }
3952 else /* It's a local symbol, or one marked to become local. */
3953 {
3954 int indx = 0;
edd21aca 3955
30667bf3
AM
3956 /* Add the absolute offset of the symbol. */
3957 outrel.r_addend += relocation;
edd21aca 3958
74d1c347
AM
3959 /* Global plabels need to be processed by the
3960 dynamic linker so that functions have at most one
3961 fptr. For this reason, we need to differentiate
3962 between global and local plabels, which we do by
3963 providing the function symbol for a global plabel
3964 reloc, and no symbol for local plabels. */
3965 if (! plabel
3966 && sym_sec != NULL
30667bf3
AM
3967 && sym_sec->output_section != NULL
3968 && ! bfd_is_abs_section (sym_sec))
252b5132 3969 {
74541ad4
AM
3970 asection *osec;
3971
3972 osec = sym_sec->output_section;
3973 indx = elf_section_data (osec)->dynindx;
3974 if (indx == 0)
3975 {
3976 osec = htab->etab.text_index_section;
3977 indx = elf_section_data (osec)->dynindx;
3978 }
3979 BFD_ASSERT (indx != 0);
4b71bec0 3980
30667bf3
AM
3981 /* We are turning this relocation into one
3982 against a section symbol, so subtract out the
3983 output section's address but not the offset
3984 of the input section in the output section. */
74541ad4 3985 outrel.r_addend -= osec->vma;
252b5132 3986 }
252b5132 3987
30667bf3
AM
3988 outrel.r_info = ELF32_R_INFO (indx, r_type);
3989 }
98ceb8ce
AM
3990 sreloc = elf_section_data (input_section)->sreloc;
3991 if (sreloc == NULL)
3992 abort ();
3993
947216bf
AM
3994 loc = sreloc->contents;
3995 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 3996 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
3997 }
3998 break;
68ffbac6 3999
9b52905e
NC
4000 case R_PARISC_TLS_LDM21L:
4001 case R_PARISC_TLS_LDM14R:
4002 {
4003 bfd_vma off;
68ffbac6 4004
9b52905e
NC
4005 off = htab->tls_ldm_got.offset;
4006 if (off & 1)
4007 off &= ~1;
4008 else
4009 {
4010 Elf_Internal_Rela outrel;
4011 bfd_byte *loc;
4012
68ffbac6 4013 outrel.r_offset = (off
ce558b89
AM
4014 + htab->etab.sgot->output_section->vma
4015 + htab->etab.sgot->output_offset);
9b52905e
NC
4016 outrel.r_addend = 0;
4017 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
ce558b89
AM
4018 loc = htab->etab.srelgot->contents;
4019 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
9b52905e
NC
4020
4021 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4022 htab->tls_ldm_got.offset |= 1;
4023 }
4024
4025 /* Add the base of the GOT to the relocation value. */
4026 relocation = (off
ce558b89
AM
4027 + htab->etab.sgot->output_offset
4028 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4029
4030 break;
4031 }
4032
4033 case R_PARISC_TLS_LDO21L:
4034 case R_PARISC_TLS_LDO14R:
4035 relocation -= dtpoff_base (info);
4036 break;
4037
4038 case R_PARISC_TLS_GD21L:
4039 case R_PARISC_TLS_GD14R:
4040 case R_PARISC_TLS_IE21L:
4041 case R_PARISC_TLS_IE14R:
4042 {
4043 bfd_vma off;
4044 int indx;
4045 char tls_type;
4046
4047 indx = 0;
4048 if (hh != NULL)
4049 {
2e684e75
AM
4050 if (!htab->etab.dynamic_sections_created
4051 || hh->eh.dynindx == -1
4052 || SYMBOL_REFERENCES_LOCAL (info, &hh->eh)
4053 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))
4054 /* This is actually a static link, or it is a
4055 -Bsymbolic link and the symbol is defined
4056 locally, or the symbol was forced to be local
4057 because of a version file. */
4058 ;
4059 else
4060 indx = hh->eh.dynindx;
9b52905e
NC
4061 off = hh->eh.got.offset;
4062 tls_type = hh->tls_type;
4063 }
4064 else
4065 {
4066 off = local_got_offsets[r_symndx];
4067 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4068 }
4069
4070 if (tls_type == GOT_UNKNOWN)
4071 abort ();
4072
4073 if ((off & 1) != 0)
4074 off &= ~1;
4075 else
4076 {
4077 bfd_boolean need_relocs = FALSE;
4078 Elf_Internal_Rela outrel;
4079 bfd_byte *loc = NULL;
4080 int cur_off = off;
4081
4082 /* The GOT entries have not been initialized yet. Do it
4083 now, and emit any relocations. If both an IE GOT and a
4084 GD GOT are necessary, we emit the GD first. */
4085
2e684e75
AM
4086 if (indx != 0
4087 || (bfd_link_pic (info)
4088 && (hh == NULL
4089 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))))
9b52905e
NC
4090 {
4091 need_relocs = TRUE;
ce558b89 4092 loc = htab->etab.srelgot->contents;
2e684e75
AM
4093 loc += (htab->etab.srelgot->reloc_count
4094 * sizeof (Elf32_External_Rela));
9b52905e
NC
4095 }
4096
4097 if (tls_type & GOT_TLS_GD)
4098 {
4099 if (need_relocs)
4100 {
2e684e75
AM
4101 outrel.r_offset
4102 = (cur_off
4103 + htab->etab.sgot->output_section->vma
4104 + htab->etab.sgot->output_offset);
4105 outrel.r_info
4106 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32);
9b52905e 4107 outrel.r_addend = 0;
9b52905e 4108 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4109 htab->etab.srelgot->reloc_count++;
9b52905e 4110 loc += sizeof (Elf32_External_Rela);
2e684e75
AM
4111 outrel.r_info
4112 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4113 outrel.r_offset += 4;
4114 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4115 htab->etab.srelgot->reloc_count++;
4116 loc += sizeof (Elf32_External_Rela);
4117 bfd_put_32 (output_bfd, 0,
4118 htab->etab.sgot->contents + cur_off);
4119 bfd_put_32 (output_bfd, 0,
4120 htab->etab.sgot->contents + cur_off + 4);
9b52905e
NC
4121 }
4122 else
4123 {
4124 /* If we are not emitting relocations for a
4125 general dynamic reference, then we must be in a
4126 static link or an executable link with the
4127 symbol binding locally. Mark it as belonging
4128 to module 1, the executable. */
4129 bfd_put_32 (output_bfd, 1,
ce558b89 4130 htab->etab.sgot->contents + cur_off);
2e684e75 4131 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
ce558b89 4132 htab->etab.sgot->contents + cur_off + 4);
9b52905e 4133 }
9b52905e
NC
4134 cur_off += 8;
4135 }
4136
4137 if (tls_type & GOT_TLS_IE)
4138 {
2e684e75
AM
4139 if (need_relocs
4140 && !(bfd_link_executable (info)
4141 && SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
9b52905e 4142 {
2e684e75
AM
4143 outrel.r_offset
4144 = (cur_off
4145 + htab->etab.sgot->output_section->vma
4146 + htab->etab.sgot->output_offset);
4147 outrel.r_info = ELF32_R_INFO (indx,
4148 R_PARISC_TLS_TPREL32);
9b52905e
NC
4149 if (indx == 0)
4150 outrel.r_addend = relocation - dtpoff_base (info);
4151 else
4152 outrel.r_addend = 0;
9b52905e 4153 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ce558b89 4154 htab->etab.srelgot->reloc_count++;
9b52905e
NC
4155 loc += sizeof (Elf32_External_Rela);
4156 }
4157 else
4158 bfd_put_32 (output_bfd, tpoff (info, relocation),
ce558b89 4159 htab->etab.sgot->contents + cur_off);
9b52905e
NC
4160 cur_off += 4;
4161 }
4162
4163 if (hh != NULL)
4164 hh->eh.got.offset |= 1;
4165 else
4166 local_got_offsets[r_symndx] |= 1;
4167 }
4168
2e684e75
AM
4169 if ((tls_type & GOT_NORMAL) != 0
4170 && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0)
4171 {
4172 if (hh != NULL)
4173 _bfd_error_handler (_("%s has both normal and TLS relocs"),
4174 hh_name (hh));
4175 else
4176 {
4177 Elf_Internal_Sym *isym
4178 = bfd_sym_from_r_symndx (&htab->sym_cache,
4179 input_bfd, r_symndx);
4180 if (isym == NULL)
4181 return FALSE;
4182 sym_name
4183 = bfd_elf_string_from_elf_section (input_bfd,
4184 symtab_hdr->sh_link,
4185 isym->st_name);
4186 if (sym_name == NULL)
4187 return FALSE;
4188 if (*sym_name == '\0')
4189 sym_name = bfd_section_name (input_bfd, sym_sec);
4190 _bfd_error_handler
4191 (_("%B:%s has both normal and TLS relocs"),
4192 input_bfd, sym_name);
4193 }
4194 bfd_set_error (bfd_error_bad_value);
4195 return FALSE;
4196 }
4197
9b52905e
NC
4198 if ((tls_type & GOT_TLS_GD)
4199 && r_type != R_PARISC_TLS_GD21L
4200 && r_type != R_PARISC_TLS_GD14R)
4201 off += 2 * GOT_ENTRY_SIZE;
4202
4203 /* Add the base of the GOT to the relocation value. */
4204 relocation = (off
ce558b89
AM
4205 + htab->etab.sgot->output_offset
4206 + htab->etab.sgot->output_section->vma);
9b52905e
NC
4207
4208 break;
4209 }
4210
4211 case R_PARISC_TLS_LE21L:
4212 case R_PARISC_TLS_LE14R:
4213 {
4214 relocation = tpoff (info, relocation);
4215 break;
4216 }
4217 break;
edd21aca 4218
30667bf3
AM
4219 default:
4220 break;
4221 }
252b5132 4222
875c0872
DA
4223 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4224 htab, sym_sec, hh, info);
252b5132 4225
875c0872 4226 if (rstatus == bfd_reloc_ok)
30667bf3 4227 continue;
252b5132 4228
875c0872 4229 if (hh != NULL)
9b52905e 4230 sym_name = hh_name (hh);
30667bf3
AM
4231 else
4232 {
4233 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4234 symtab_hdr->sh_link,
4235 sym->st_name);
4236 if (sym_name == NULL)
b34976b6 4237 return FALSE;
30667bf3
AM
4238 if (*sym_name == '\0')
4239 sym_name = bfd_section_name (input_bfd, sym_sec);
4240 }
edd21aca 4241
30667bf3 4242 howto = elf_hppa_howto_table + r_type;
252b5132 4243
875c0872 4244 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4245 {
875c0872 4246 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4247 {
4eca0228 4248 _bfd_error_handler
695344c0 4249 /* xgettext:c-format */
d42c267e 4250 (_("%B(%A+%#Lx): cannot handle %s for %s"),
d003868e
AM
4251 input_bfd,
4252 input_section,
d42c267e 4253 rela->r_offset,
f09ebc7d
AM
4254 howto->name,
4255 sym_name);
4256 bfd_set_error (bfd_error_bad_value);
b34976b6 4257 return FALSE;
f09ebc7d 4258 }
30667bf3
AM
4259 }
4260 else
1a72702b
AM
4261 (*info->callbacks->reloc_overflow)
4262 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4263 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4264 }
edd21aca 4265
b34976b6 4266 return TRUE;
30667bf3 4267}
252b5132 4268
30667bf3
AM
4269/* Finish up dynamic symbol handling. We set the contents of various
4270 dynamic sections here. */
252b5132 4271
b34976b6 4272static bfd_boolean
c39a58e6
AM
4273elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4274 struct bfd_link_info *info,
875c0872 4275 struct elf_link_hash_entry *eh,
c39a58e6 4276 Elf_Internal_Sym *sym)
30667bf3 4277{
83c81bfe 4278 struct elf32_hppa_link_hash_table *htab;
875c0872 4279 Elf_Internal_Rela rela;
a252afa4 4280 bfd_byte *loc;
edd21aca 4281
83c81bfe 4282 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4283 if (htab == NULL)
4284 return FALSE;
30667bf3 4285
875c0872 4286 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4287 {
4288 bfd_vma value;
30667bf3 4289
875c0872 4290 if (eh->plt.offset & 1)
8dea1268
AM
4291 abort ();
4292
30667bf3
AM
4293 /* This symbol has an entry in the procedure linkage table. Set
4294 it up.
4295
4296 The format of a plt entry is
74d1c347
AM
4297 <funcaddr>
4298 <__gp>
47d89dba 4299 */
30667bf3 4300 value = 0;
875c0872
DA
4301 if (eh->root.type == bfd_link_hash_defined
4302 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4303 {
875c0872
DA
4304 value = eh->root.u.def.value;
4305 if (eh->root.u.def.section->output_section != NULL)
4306 value += (eh->root.u.def.section->output_offset
4307 + eh->root.u.def.section->output_section->vma);
252b5132 4308 }
edd21aca 4309
a252afa4 4310 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4311 rela.r_offset = (eh->plt.offset
ce558b89
AM
4312 + htab->etab.splt->output_offset
4313 + htab->etab.splt->output_section->vma);
875c0872 4314 if (eh->dynindx != -1)
30667bf3 4315 {
875c0872
DA
4316 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4317 rela.r_addend = 0;
30667bf3 4318 }
ce757d15 4319 else
47d89dba 4320 {
a252afa4
DA
4321 /* This symbol has been marked to become local, and is
4322 used by a plabel so must be kept in the .plt. */
875c0872
DA
4323 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4324 rela.r_addend = value;
47d89dba
AM
4325 }
4326
ce558b89
AM
4327 loc = htab->etab.srelplt->contents;
4328 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4329 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
a252afa4 4330
875c0872 4331 if (!eh->def_regular)
30667bf3
AM
4332 {
4333 /* Mark the symbol as undefined, rather than as defined in
4334 the .plt section. Leave the value alone. */
4335 sym->st_shndx = SHN_UNDEF;
4336 }
4337 }
edd21aca 4338
9b52905e 4339 if (eh->got.offset != (bfd_vma) -1
2e684e75 4340 && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0
d336fa6d 4341 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
30667bf3 4342 {
d336fa6d
AM
4343 bfd_boolean is_dyn = (eh->dynindx != -1
4344 && !SYMBOL_REFERENCES_LOCAL (info, eh));
4345
4346 if (is_dyn || bfd_link_pic (info))
30667bf3 4347 {
d336fa6d
AM
4348 /* This symbol has an entry in the global offset table. Set
4349 it up. */
4350
4351 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4352 + htab->etab.sgot->output_offset
4353 + htab->etab.sgot->output_section->vma);
4354
4355 /* If this is a -Bsymbolic link and the symbol is defined
4356 locally or was forced to be local because of a version
4357 file, we just want to emit a RELATIVE reloc. The entry
4358 in the global offset table will already have been
4359 initialized in the relocate_section function. */
4360 if (!is_dyn)
4361 {
4362 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4363 rela.r_addend = (eh->root.u.def.value
4364 + eh->root.u.def.section->output_offset
4365 + eh->root.u.def.section->output_section->vma);
4366 }
4367 else
4368 {
4369 if ((eh->got.offset & 1) != 0)
4370 abort ();
875c0872 4371
d336fa6d
AM
4372 bfd_put_32 (output_bfd, 0,
4373 htab->etab.sgot->contents + (eh->got.offset & ~1));
4374 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4375 rela.r_addend = 0;
4376 }
edd21aca 4377
d336fa6d
AM
4378 loc = htab->etab.srelgot->contents;
4379 loc += (htab->etab.srelgot->reloc_count++
4380 * sizeof (Elf32_External_Rela));
4381 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4382 }
30667bf3 4383 }
edd21aca 4384
875c0872 4385 if (eh->needs_copy)
30667bf3 4386 {
875c0872 4387 asection *sec;
30667bf3
AM
4388
4389 /* This symbol needs a copy reloc. Set it up. */
4390
875c0872
DA
4391 if (! (eh->dynindx != -1
4392 && (eh->root.type == bfd_link_hash_defined
4393 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4394 abort ();
30667bf3 4395
875c0872
DA
4396 rela.r_offset = (eh->root.u.def.value
4397 + eh->root.u.def.section->output_offset
4398 + eh->root.u.def.section->output_section->vma);
4399 rela.r_addend = 0;
4400 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
afbf7e8e 4401 if (eh->root.u.def.section == htab->etab.sdynrelro)
5474d94f
AM
4402 sec = htab->etab.sreldynrelro;
4403 else
4404 sec = htab->etab.srelbss;
875c0872
DA
4405 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4406 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4407 }
4408
4409 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4410 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4411 {
4412 sym->st_shndx = SHN_ABS;
4413 }
4414
b34976b6 4415 return TRUE;
30667bf3
AM
4416}
4417
98ceb8ce
AM
4418/* Used to decide how to sort relocs in an optimal manner for the
4419 dynamic linker, before writing them out. */
4420
4421static enum elf_reloc_type_class
7e612e98
AM
4422elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4423 const asection *rel_sec ATTRIBUTE_UNUSED,
4424 const Elf_Internal_Rela *rela)
98ceb8ce 4425{
9b52905e 4426 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4427 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4428 check below. */
4429 switch ((int) ELF32_R_TYPE (rela->r_info))
4430 {
4431 case R_PARISC_TLS_DTPMOD32:
4432 case R_PARISC_TLS_DTPOFF32:
4433 case R_PARISC_TLS_TPREL32:
4434 return reloc_class_normal;
4435 }
4436
cf35638d 4437 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4438 return reloc_class_relative;
4439
4440 switch ((int) ELF32_R_TYPE (rela->r_info))
4441 {
4442 case R_PARISC_IPLT:
4443 return reloc_class_plt;
4444 case R_PARISC_COPY:
4445 return reloc_class_copy;
4446 default:
4447 return reloc_class_normal;
4448 }
4449}
4450
30667bf3
AM
4451/* Finish up the dynamic sections. */
4452
b34976b6 4453static bfd_boolean
c39a58e6
AM
4454elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4455 struct bfd_link_info *info)
30667bf3
AM
4456{
4457 bfd *dynobj;
83c81bfe 4458 struct elf32_hppa_link_hash_table *htab;
30667bf3 4459 asection *sdyn;
894891db 4460 asection * sgot;
30667bf3 4461
83c81bfe 4462 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4463 if (htab == NULL)
4464 return FALSE;
4465
a63e02c7 4466 dynobj = htab->etab.dynobj;
30667bf3 4467
ce558b89 4468 sgot = htab->etab.sgot;
894891db
NC
4469 /* A broken linker script might have discarded the dynamic sections.
4470 Catch this here so that we do not seg-fault later on. */
4471 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4472 return FALSE;
4473
3d4d4302 4474 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4475
a63e02c7 4476 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4477 {
4478 Elf32_External_Dyn *dyncon, *dynconend;
4479
49e9d0d3
AM
4480 if (sdyn == NULL)
4481 abort ();
30667bf3
AM
4482
4483 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4484 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4485 for (; dyncon < dynconend; dyncon++)
edd21aca 4486 {
30667bf3
AM
4487 Elf_Internal_Dyn dyn;
4488 asection *s;
4489
4490 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4491
4492 switch (dyn.d_tag)
4493 {
4494 default:
3ac8354b 4495 continue;
30667bf3
AM
4496
4497 case DT_PLTGOT:
4498 /* Use PLTGOT to set the GOT register. */
4499 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4500 break;
4501
4502 case DT_JMPREL:
ce558b89 4503 s = htab->etab.srelplt;
30667bf3 4504 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4505 break;
4506
4507 case DT_PLTRELSZ:
ce558b89 4508 s = htab->etab.srelplt;
eea6121a 4509 dyn.d_un.d_val = s->size;
30667bf3
AM
4510 break;
4511 }
3ac8354b
AM
4512
4513 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4514 }
252b5132 4515 }
edd21aca 4516
894891db 4517 if (sgot != NULL && sgot->size != 0)
30667bf3 4518 {
74d1c347
AM
4519 /* Fill in the first entry in the global offset table.
4520 We use it to point to our dynamic section, if we have one. */
30667bf3 4521 bfd_put_32 (output_bfd,
c39a58e6 4522 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4523 sgot->contents);
30667bf3 4524
74d1c347 4525 /* The second entry is reserved for use by the dynamic linker. */
894891db 4526 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4527
30667bf3 4528 /* Set .got entry size. */
894891db 4529 elf_section_data (sgot->output_section)
74d1c347 4530 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4531 }
4532
ce558b89 4533 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
47d89dba 4534 {
f3c3938c
JDA
4535 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4536 plt stubs and as such the section does not hold a table of fixed-size
4537 entries. */
ce558b89 4538 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4539
83c81bfe 4540 if (htab->need_plt_stub)
47d89dba
AM
4541 {
4542 /* Set up the .plt stub. */
ce558b89
AM
4543 memcpy (htab->etab.splt->contents
4544 + htab->etab.splt->size - sizeof (plt_stub),
47d89dba
AM
4545 plt_stub, sizeof (plt_stub));
4546
ce558b89
AM
4547 if ((htab->etab.splt->output_offset
4548 + htab->etab.splt->output_section->vma
4549 + htab->etab.splt->size)
894891db
NC
4550 != (sgot->output_offset
4551 + sgot->output_section->vma))
47d89dba 4552 {
4eca0228 4553 _bfd_error_handler
47d89dba 4554 (_(".got section not immediately after .plt section"));
b34976b6 4555 return FALSE;
47d89dba
AM
4556 }
4557 }
4558 }
30667bf3 4559
b34976b6 4560 return TRUE;
30667bf3 4561}
252b5132 4562
30667bf3
AM
4563/* Called when writing out an object file to decide the type of a
4564 symbol. */
4565static int
c39a58e6 4566elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4567{
4568 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4569 return STT_PARISC_MILLI;
4570 else
4571 return type;
252b5132
RH
4572}
4573
4574/* Misc BFD support code. */
30667bf3
AM
4575#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4576#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4577#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4578#define elf_info_to_howto elf_hppa_info_to_howto
4579#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4580
252b5132 4581/* Stuff for the BFD linker. */
c46b7515 4582#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4583#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4584#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4585#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3 4586#define elf_backend_check_relocs elf32_hppa_check_relocs
c0e331c7 4587#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
30667bf3
AM
4588#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4589#define elf_backend_fake_sections elf_hppa_fake_sections
4590#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4591#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4592#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4593#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4594#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4595#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3 4596#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
edfc032f
AM
4597#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4598#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4599#define elf_backend_object_p elf32_hppa_object_p
4600#define elf_backend_final_write_processing elf_hppa_final_write_processing
4601#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4602#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4603#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4604
4605#define elf_backend_can_gc_sections 1
51b64d56 4606#define elf_backend_can_refcount 1
30667bf3
AM
4607#define elf_backend_plt_alignment 2
4608#define elf_backend_want_got_plt 0
4609#define elf_backend_plt_readonly 0
4610#define elf_backend_want_plt_sym 0
74d1c347 4611#define elf_backend_got_header_size 8
5474d94f 4612#define elf_backend_want_dynrelro 1
f0fe0e16 4613#define elf_backend_rela_normal 1
64f52338 4614#define elf_backend_dtrel_excludes_plt 1
a8c75b76 4615#define elf_backend_no_page_alias 1
252b5132 4616
6d00b590 4617#define TARGET_BIG_SYM hppa_elf32_vec
252b5132
RH
4618#define TARGET_BIG_NAME "elf32-hppa"
4619#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4620#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4621#define ELF_MACHINE_CODE EM_PARISC
4622#define ELF_MAXPAGESIZE 0x1000
d1036acb 4623#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4624#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4625
4626#include "elf32-target.h"
d952f17a
AM
4627
4628#undef TARGET_BIG_SYM
6d00b590 4629#define TARGET_BIG_SYM hppa_elf32_linux_vec
d952f17a 4630#undef TARGET_BIG_NAME
914dfb0f 4631#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4632#undef ELF_OSABI
9c55345c 4633#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4634#undef elf32_bed
4635#define elf32_bed elf32_hppa_linux_bed
d952f17a 4636
d952f17a 4637#include "elf32-target.h"
225247f0
JT
4638
4639#undef TARGET_BIG_SYM
6d00b590 4640#define TARGET_BIG_SYM hppa_elf32_nbsd_vec
225247f0 4641#undef TARGET_BIG_NAME
914dfb0f 4642#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4643#undef ELF_OSABI
4644#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4645#undef elf32_bed
4646#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4647
4648#include "elf32-target.h"
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