* elf32-rl78.c (elf32_rl78_relax_delete_bytes): Make sure relocs
[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
a253d456 2 Copyright 1990-2013 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
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14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
cd123cb7 16 the Free Software Foundation; either version 3 of the License, or
ae9a127f 17 (at your option) any later version.
252b5132 18
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19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
252b5132 23
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24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
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26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
252b5132 28
252b5132 29#include "sysdep.h"
3db64b00 30#include "bfd.h"
252b5132
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31#include "libbfd.h"
32#include "elf-bfd.h"
9e103c9c
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33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
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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
30667bf3
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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
3ee1d854
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69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
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71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
3ee1d854
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74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 76 : bv %r0(%r21)
3ee1d854 77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
3ee1d854
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81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
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88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
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91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
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98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
875c0872
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118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
68ffbac6 125
875c0872
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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;
252b5132
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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
25f72752
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204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
206 asection *id_sec;
252b5132
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207};
208
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209struct elf32_hppa_link_hash_entry
210{
a63e02c7 211 struct elf_link_hash_entry eh;
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212
213 /* A pointer to the most recently used stub hash entry against this
214 symbol. */
a63e02c7 215 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 216
30667bf3
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217 /* Used to count relocations for delayed sizing of relocation
218 sections. */
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219 struct elf32_hppa_dyn_reloc_entry
220 {
30667bf3 221 /* Next relocation in the chain. */
a63e02c7 222 struct elf32_hppa_dyn_reloc_entry *hdh_next;
30667bf3 223
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224 /* The input section of the reloc. */
225 asection *sec;
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226
227 /* Number of relocs copied in this section. */
228 bfd_size_type count;
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229
230#if RELATIVE_DYNRELOCS
231 /* Number of relative relocs copied for the input section. */
232 bfd_size_type relative_count;
233#endif
234 } *dyn_relocs;
30667bf3 235
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236 enum
237 {
238 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
239 } tls_type;
240
74d1c347
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241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel:1;
30667bf3
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243};
244
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245struct elf32_hppa_link_hash_table
246{
252b5132 247 /* The main hash table. */
a63e02c7 248 struct elf_link_hash_table etab;
252b5132
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249
250 /* The stub hash table. */
a63e02c7 251 struct bfd_hash_table bstab;
252b5132 252
30667bf3
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253 /* Linker stub bfd. */
254 bfd *stub_bfd;
255
30667bf3 256 /* Linker call-backs. */
c39a58e6
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257 asection * (*add_stub_section) (const char *, asection *);
258 void (*layout_sections_again) (void);
30667bf3 259
25f72752
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260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
9b52905e
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262 struct map_stub
263 {
25f72752
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264 /* This is the section to which stubs in the group will be
265 attached. */
266 asection *link_sec;
267 /* The stub section. */
268 asection *stub_sec;
25f72752 269 } *stub_group;
30667bf3 270
b4655ea9
AM
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
273 int top_index;
274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
30667bf3
AM
277 /* Short-cuts to get to dynamic linker sections. */
278 asection *sgot;
279 asection *srelgot;
280 asection *splt;
281 asection *srelplt;
282 asection *sdynbss;
283 asection *srelbss;
47d89dba 284
c46b7515
AM
285 /* Used during a final link to store the base of the text and data
286 segments so that we can perform SEGREL relocations. */
287 bfd_vma text_segment_base;
288 bfd_vma data_segment_base;
289
47d89dba
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290 /* Whether we support multiple sub-spaces for shared libs. */
291 unsigned int multi_subspace:1;
292
067fa4a6 293 /* Flags set when various size branches are detected. Used to
47d89dba
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294 select suitable defaults for the stub group size. */
295 unsigned int has_12bit_branch:1;
296 unsigned int has_17bit_branch:1;
067fa4a6 297 unsigned int has_22bit_branch:1;
47d89dba
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298
299 /* Set if we need a .plt stub to support lazy dynamic linking. */
300 unsigned int need_plt_stub:1;
ec338859 301
87d72d41
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302 /* Small local sym cache. */
303 struct sym_cache sym_cache;
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304
305 /* Data for LDM relocations. */
306 union
307 {
308 bfd_signed_vma refcount;
309 bfd_vma offset;
310 } tls_ldm_got;
252b5132
RH
311};
312
30667bf3
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313/* Various hash macros and functions. */
314#define hppa_link_hash_table(p) \
4dfe6ac6
NC
315 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
316 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 317
875c0872
DA
318#define hppa_elf_hash_entry(ent) \
319 ((struct elf32_hppa_link_hash_entry *)(ent))
320
321#define hppa_stub_hash_entry(ent) \
322 ((struct elf32_hppa_stub_hash_entry *)(ent))
323
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324#define hppa_stub_hash_lookup(table, string, create, copy) \
325 ((struct elf32_hppa_stub_hash_entry *) \
326 bfd_hash_lookup ((table), (string), (create), (copy)))
327
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328#define hppa_elf_local_got_tls_type(abfd) \
329 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
330
331#define hh_name(hh) \
332 (hh ? hh->eh.root.root.string : "<undef>")
333
334#define eh_name(eh) \
335 (eh ? eh->root.root.string : "<undef>")
336
252b5132
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337/* Assorted hash table functions. */
338
339/* Initialize an entry in the stub hash table. */
340
341static struct bfd_hash_entry *
c39a58e6
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342stub_hash_newfunc (struct bfd_hash_entry *entry,
343 struct bfd_hash_table *table,
344 const char *string)
252b5132 345{
252b5132
RH
346 /* Allocate the structure if it has not already been allocated by a
347 subclass. */
ebe50bae 348 if (entry == NULL)
30667bf3 349 {
ebe50bae
AM
350 entry = bfd_hash_allocate (table,
351 sizeof (struct elf32_hppa_stub_hash_entry));
352 if (entry == NULL)
353 return entry;
30667bf3 354 }
252b5132
RH
355
356 /* Call the allocation method of the superclass. */
ebe50bae
AM
357 entry = bfd_hash_newfunc (entry, table, string);
358 if (entry != NULL)
252b5132 359 {
875c0872 360 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 361
252b5132 362 /* Initialize the local fields. */
875c0872
DA
363 hsh = hppa_stub_hash_entry (entry);
364 hsh->stub_sec = NULL;
365 hsh->stub_offset = 0;
366 hsh->target_value = 0;
367 hsh->target_section = NULL;
368 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 369 hsh->hh = NULL;
875c0872 370 hsh->id_sec = NULL;
30667bf3
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371 }
372
ebe50bae 373 return entry;
30667bf3
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374}
375
30667bf3
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376/* Initialize an entry in the link hash table. */
377
378static struct bfd_hash_entry *
c39a58e6
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379hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
380 struct bfd_hash_table *table,
381 const char *string)
30667bf3 382{
30667bf3
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383 /* Allocate the structure if it has not already been allocated by a
384 subclass. */
ebe50bae 385 if (entry == NULL)
30667bf3 386 {
ebe50bae
AM
387 entry = bfd_hash_allocate (table,
388 sizeof (struct elf32_hppa_link_hash_entry));
389 if (entry == NULL)
390 return entry;
30667bf3
AM
391 }
392
393 /* Call the allocation method of the superclass. */
ebe50bae
AM
394 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
395 if (entry != NULL)
30667bf3 396 {
875c0872 397 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 398
30667bf3 399 /* Initialize the local fields. */
875c0872 400 hh = hppa_elf_hash_entry (entry);
a63e02c7 401 hh->hsh_cache = NULL;
875c0872
DA
402 hh->dyn_relocs = NULL;
403 hh->plabel = 0;
9b52905e 404 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
405 }
406
ebe50bae 407 return entry;
252b5132
RH
408}
409
252b5132
RH
410/* Create the derived linker hash table. The PA ELF port uses the derived
411 hash table to keep information specific to the PA ELF linker (without
412 using static variables). */
413
414static struct bfd_link_hash_table *
c39a58e6 415elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 416{
875c0872
DA
417 struct elf32_hppa_link_hash_table *htab;
418 bfd_size_type amt = sizeof (*htab);
252b5132 419
7bf52ea2 420 htab = bfd_zmalloc (amt);
875c0872 421 if (htab == NULL)
252b5132 422 return NULL;
edd21aca 423
66eb6687 424 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
425 sizeof (struct elf32_hppa_link_hash_entry),
426 HPPA32_ELF_DATA))
252b5132 427 {
875c0872 428 free (htab);
252b5132
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429 return NULL;
430 }
edd21aca
AM
431
432 /* Init the stub hash table too. */
66eb6687
AM
433 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
434 sizeof (struct elf32_hppa_stub_hash_entry)))
edd21aca
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435 return NULL;
436
875c0872
DA
437 htab->text_segment_base = (bfd_vma) -1;
438 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 439 return &htab->etab.root;
252b5132
RH
440}
441
e2d34d7d
DJ
442/* Free the derived linker hash table. */
443
444static void
875c0872 445elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab)
e2d34d7d 446{
875c0872
DA
447 struct elf32_hppa_link_hash_table *htab
448 = (struct elf32_hppa_link_hash_table *) btab;
e2d34d7d 449
a63e02c7 450 bfd_hash_table_free (&htab->bstab);
9f7c3e5e 451 _bfd_elf_link_hash_table_free (btab);
e2d34d7d
DJ
452}
453
30667bf3
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454/* Build a name for an entry in the stub hash table. */
455
edd21aca 456static char *
c39a58e6
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457hppa_stub_name (const asection *input_section,
458 const asection *sym_sec,
875c0872
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459 const struct elf32_hppa_link_hash_entry *hh,
460 const Elf_Internal_Rela *rela)
edd21aca
AM
461{
462 char *stub_name;
dc810e39 463 bfd_size_type len;
edd21aca 464
875c0872 465 if (hh)
30667bf3 466 {
9b52905e 467 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
468 stub_name = bfd_malloc (len);
469 if (stub_name != NULL)
9b52905e
NC
470 sprintf (stub_name, "%08x_%s+%x",
471 input_section->id & 0xffffffff,
472 hh_name (hh),
473 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
474 }
475 else
edd21aca 476 {
30667bf3
AM
477 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
478 stub_name = bfd_malloc (len);
479 if (stub_name != NULL)
9b52905e
NC
480 sprintf (stub_name, "%08x_%x:%x+%x",
481 input_section->id & 0xffffffff,
482 sym_sec->id & 0xffffffff,
483 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
484 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
485 }
486 return stub_name;
487}
252b5132 488
30667bf3
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489/* Look up an entry in the stub hash. Stub entries are cached because
490 creating the stub name takes a bit of time. */
491
492static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
493hppa_get_stub_entry (const asection *input_section,
494 const asection *sym_sec,
875c0872
DA
495 struct elf32_hppa_link_hash_entry *hh,
496 const Elf_Internal_Rela *rela,
c39a58e6 497 struct elf32_hppa_link_hash_table *htab)
252b5132 498{
a63e02c7 499 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
500 const asection *id_sec;
501
502 /* If this input section is part of a group of sections sharing one
503 stub section, then use the id of the first section in the group.
504 Stub names need to include a section id, as there may well be
505 more than one stub used to reach say, printf, and we need to
506 distinguish between them. */
83c81bfe 507 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 508
a63e02c7
DA
509 if (hh != NULL && hh->hsh_cache != NULL
510 && hh->hsh_cache->hh == hh
511 && hh->hsh_cache->id_sec == id_sec)
edd21aca 512 {
a63e02c7 513 hsh_entry = hh->hsh_cache;
30667bf3
AM
514 }
515 else
516 {
30667bf3 517 char *stub_name;
edd21aca 518
875c0872 519 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
520 if (stub_name == NULL)
521 return NULL;
edd21aca 522
a63e02c7 523 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 524 stub_name, FALSE, FALSE);
875c0872 525 if (hh != NULL)
a63e02c7 526 hh->hsh_cache = hsh_entry;
30667bf3
AM
527
528 free (stub_name);
edd21aca 529 }
30667bf3 530
a63e02c7 531 return hsh_entry;
30667bf3
AM
532}
533
30667bf3
AM
534/* Add a new stub entry to the stub hash. Not all fields of the new
535 stub entry are initialised. */
536
537static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
538hppa_add_stub (const char *stub_name,
539 asection *section,
540 struct elf32_hppa_link_hash_table *htab)
30667bf3 541{
25f72752 542 asection *link_sec;
30667bf3 543 asection *stub_sec;
875c0872 544 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 545
83c81bfe
AM
546 link_sec = htab->stub_group[section->id].link_sec;
547 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 548 if (stub_sec == NULL)
edd21aca 549 {
83c81bfe 550 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
551 if (stub_sec == NULL)
552 {
d4c88bbb 553 size_t namelen;
dc810e39 554 bfd_size_type len;
30667bf3
AM
555 char *s_name;
556
d4c88bbb
AM
557 namelen = strlen (link_sec->name);
558 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 559 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
560 if (s_name == NULL)
561 return NULL;
562
d4c88bbb
AM
563 memcpy (s_name, link_sec->name, namelen);
564 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 565 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
566 if (stub_sec == NULL)
567 return NULL;
83c81bfe 568 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 569 }
83c81bfe 570 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 571 }
252b5132 572
30667bf3 573 /* Enter this entry into the linker stub hash table. */
a63e02c7 574 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 575 TRUE, FALSE);
875c0872 576 if (hsh == NULL)
30667bf3 577 {
d003868e
AM
578 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
579 section->owner,
30667bf3
AM
580 stub_name);
581 return NULL;
edd21aca
AM
582 }
583
875c0872
DA
584 hsh->stub_sec = stub_sec;
585 hsh->stub_offset = 0;
586 hsh->id_sec = link_sec;
587 return hsh;
edd21aca
AM
588}
589
30667bf3
AM
590/* Determine the type of stub needed, if any, for a call. */
591
592static enum elf32_hppa_stub_type
c39a58e6 593hppa_type_of_stub (asection *input_sec,
875c0872
DA
594 const Elf_Internal_Rela *rela,
595 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
596 bfd_vma destination,
597 struct bfd_link_info *info)
edd21aca 598{
edd21aca 599 bfd_vma location;
30667bf3
AM
600 bfd_vma branch_offset;
601 bfd_vma max_branch_offset;
602 unsigned int r_type;
603
875c0872 604 if (hh != NULL
a63e02c7
DA
605 && hh->eh.plt.offset != (bfd_vma) -1
606 && hh->eh.dynindx != -1
875c0872 607 && !hh->plabel
a252afa4 608 && (info->shared
a63e02c7
DA
609 || !hh->eh.def_regular
610 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 611 {
067fa4a6
AM
612 /* We need an import stub. Decide between hppa_stub_import
613 and hppa_stub_import_shared later. */
30667bf3
AM
614 return hppa_stub_import;
615 }
edd21aca 616
30667bf3
AM
617 /* Determine where the call point is. */
618 location = (input_sec->output_offset
619 + input_sec->output_section->vma
875c0872 620 + rela->r_offset);
edd21aca 621
30667bf3 622 branch_offset = destination - location - 8;
875c0872 623 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 624
30667bf3
AM
625 /* Determine if a long branch stub is needed. parisc branch offsets
626 are relative to the second instruction past the branch, ie. +8
627 bytes on from the branch instruction location. The offset is
628 signed and counts in units of 4 bytes. */
629 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
630 max_branch_offset = (1 << (17 - 1)) << 2;
631
30667bf3 632 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
633 max_branch_offset = (1 << (12 - 1)) << 2;
634
25f72752 635 else /* R_PARISC_PCREL22F. */
9b52905e 636 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 637
30667bf3 638 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
639 return hppa_stub_long_branch;
640
30667bf3
AM
641 return hppa_stub_none;
642}
edd21aca 643
30667bf3
AM
644/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
645 IN_ARG contains the link info pointer. */
edd21aca 646
30667bf3
AM
647#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
648#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 649
30667bf3 650#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 651#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 652#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 653
3ee1d854
AM
654#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
655#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 656#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 657#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 658
3ee1d854
AM
659#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
660#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 661
30667bf3
AM
662#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
663#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
664#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
665#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 666
067fa4a6 667#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
668#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
669#define NOP 0x08000240 /* nop */
670#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
671#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
672#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 673
30667bf3
AM
674#ifndef R19_STUBS
675#define R19_STUBS 1
676#endif
edd21aca 677
30667bf3
AM
678#if R19_STUBS
679#define LDW_R1_DLT LDW_R1_R19
680#else
681#define LDW_R1_DLT LDW_R1_DP
682#endif
edd21aca 683
b34976b6 684static bfd_boolean
875c0872 685hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 686{
875c0872 687 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 688 struct bfd_link_info *info;
83c81bfe 689 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
690 asection *stub_sec;
691 bfd *stub_bfd;
692 bfd_byte *loc;
693 bfd_vma sym_value;
74d1c347 694 bfd_vma insn;
8dea1268 695 bfd_vma off;
74d1c347 696 int val;
30667bf3 697 int size;
edd21aca 698
30667bf3 699 /* Massage our args to the form they really have. */
875c0872
DA
700 hsh = hppa_stub_hash_entry (bh);
701 info = (struct bfd_link_info *)in_arg;
30667bf3 702
83c81bfe 703 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
704 if (htab == NULL)
705 return FALSE;
706
875c0872 707 stub_sec = hsh->stub_sec;
edd21aca 708
30667bf3 709 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
710 hsh->stub_offset = stub_sec->size;
711 loc = stub_sec->contents + hsh->stub_offset;
252b5132 712
30667bf3
AM
713 stub_bfd = stub_sec->owner;
714
875c0872 715 switch (hsh->stub_type)
30667bf3
AM
716 {
717 case hppa_stub_long_branch:
718 /* Create the long branch. A long branch is formed with "ldil"
719 loading the upper bits of the target address into a register,
720 then branching with "be" which adds in the lower bits.
721 The "be" has its delay slot nullified. */
875c0872
DA
722 sym_value = (hsh->target_value
723 + hsh->target_section->output_offset
724 + hsh->target_section->output_section->vma);
30667bf3 725
c39a58e6 726 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 727 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
728 bfd_put_32 (stub_bfd, insn, loc);
729
c39a58e6 730 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 731 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
732 bfd_put_32 (stub_bfd, insn, loc + 4);
733
30667bf3 734 size = 8;
edd21aca
AM
735 break;
736
30667bf3
AM
737 case hppa_stub_long_branch_shared:
738 /* Branches are relative. This is where we are going to. */
875c0872
DA
739 sym_value = (hsh->target_value
740 + hsh->target_section->output_offset
741 + hsh->target_section->output_section->vma);
30667bf3
AM
742
743 /* And this is where we are coming from, more or less. */
875c0872 744 sym_value -= (hsh->stub_offset
30667bf3
AM
745 + stub_sec->output_offset
746 + stub_sec->output_section->vma);
747
74d1c347 748 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 749 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 750 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
751 bfd_put_32 (stub_bfd, insn, loc + 4);
752
47d89dba 753 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 754 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
755 bfd_put_32 (stub_bfd, insn, loc + 8);
756 size = 12;
757 break;
edd21aca 758
30667bf3
AM
759 case hppa_stub_import:
760 case hppa_stub_import_shared:
a63e02c7 761 off = hsh->hh->eh.plt.offset;
8dea1268 762 if (off >= (bfd_vma) -2)
49e9d0d3 763 abort ();
8dea1268
AM
764
765 off &= ~ (bfd_vma) 1;
766 sym_value = (off
83c81bfe
AM
767 + htab->splt->output_offset
768 + htab->splt->output_section->vma
769 - elf_gp (htab->splt->output_section->owner));
30667bf3
AM
770
771 insn = ADDIL_DP;
772#if R19_STUBS
875c0872 773 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
774 insn = ADDIL_R19;
775#endif
c39a58e6 776 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 777 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 778 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 779
47d89dba
AM
780 /* It is critical to use lrsel/rrsel here because we are using
781 two different offsets (+0 and +4) from sym_value. If we use
782 lsel/rsel then with unfortunate sym_values we will round
783 sym_value+4 up to the next 2k block leading to a mis-match
784 between the lsel and rsel value. */
c39a58e6 785 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 786 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 787 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 788
83c81bfe 789 if (htab->multi_subspace)
30667bf3 790 {
47d89dba 791 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 792 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 793 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 794
74d1c347
AM
795 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
796 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
797 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
798 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 799
30667bf3
AM
800 size = 28;
801 }
802 else
803 {
74d1c347 804 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
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 + 12);
252b5132 808
30667bf3
AM
809 size = 16;
810 }
252b5132 811
30667bf3 812 break;
252b5132 813
30667bf3
AM
814 case hppa_stub_export:
815 /* Branches are relative. This is where we are going to. */
875c0872
DA
816 sym_value = (hsh->target_value
817 + hsh->target_section->output_offset
818 + hsh->target_section->output_section->vma);
252b5132 819
30667bf3 820 /* And this is where we are coming from. */
875c0872 821 sym_value -= (hsh->stub_offset
30667bf3
AM
822 + stub_sec->output_offset
823 + stub_sec->output_section->vma);
edd21aca 824
067fa4a6
AM
825 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
826 && (!htab->has_22bit_branch
827 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 828 {
edd21aca 829 (*_bfd_error_handler)
d003868e 830 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 831 hsh->target_section->owner,
d003868e 832 stub_sec,
875c0872 833 (long) hsh->stub_offset,
a63e02c7 834 hsh->bh_root.string);
30667bf3 835 bfd_set_error (bfd_error_bad_value);
b34976b6 836 return FALSE;
252b5132 837 }
30667bf3 838
74d1c347 839 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
840 if (!htab->has_22bit_branch)
841 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
842 else
843 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
844 bfd_put_32 (stub_bfd, insn, loc);
845
74d1c347
AM
846 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
847 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
848 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
849 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
850 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
851
852 /* Point the function symbol at the stub. */
a63e02c7
DA
853 hsh->hh->eh.root.u.def.section = stub_sec;
854 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
855
856 size = 24;
857 break;
858
859 default:
860 BFD_FAIL ();
b34976b6 861 return FALSE;
252b5132
RH
862 }
863
eea6121a 864 stub_sec->size += size;
b34976b6 865 return TRUE;
252b5132
RH
866}
867
30667bf3
AM
868#undef LDIL_R1
869#undef BE_SR4_R1
870#undef BL_R1
871#undef ADDIL_R1
872#undef DEPI_R1
30667bf3
AM
873#undef LDW_R1_R21
874#undef LDW_R1_DLT
875#undef LDW_R1_R19
876#undef ADDIL_R19
877#undef LDW_R1_DP
878#undef LDSID_R21_R1
879#undef MTSP_R1
880#undef BE_SR0_R21
881#undef STW_RP
882#undef BV_R0_R21
883#undef BL_RP
884#undef NOP
885#undef LDW_RP
886#undef LDSID_RP_R1
887#undef BE_SR0_RP
252b5132 888
30667bf3
AM
889/* As above, but don't actually build the stub. Just bump offset so
890 we know stub section sizes. */
891
b34976b6 892static bfd_boolean
875c0872 893hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 894{
875c0872 895 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 896 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
897 int size;
898
899 /* Massage our args to the form they really have. */
875c0872 900 hsh = hppa_stub_hash_entry (bh);
c39a58e6 901 htab = in_arg;
30667bf3 902
875c0872 903 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 904 size = 8;
875c0872 905 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 906 size = 12;
875c0872 907 else if (hsh->stub_type == hppa_stub_export)
30667bf3 908 size = 24;
74d1c347 909 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 910 {
83c81bfe 911 if (htab->multi_subspace)
30667bf3
AM
912 size = 28;
913 else
914 size = 16;
915 }
252b5132 916
875c0872 917 hsh->stub_sec->size += size;
b34976b6 918 return TRUE;
30667bf3 919}
252b5132 920
30667bf3
AM
921/* Return nonzero if ABFD represents an HPPA ELF32 file.
922 Additionally we set the default architecture and machine. */
923
b34976b6 924static bfd_boolean
c39a58e6 925elf32_hppa_object_p (bfd *abfd)
30667bf3 926{
24a5e751
L
927 Elf_Internal_Ehdr * i_ehdrp;
928 unsigned int flags;
252b5132 929
24a5e751
L
930 i_ehdrp = elf_elfheader (abfd);
931 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
932 {
9c55345c 933 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 934 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 935 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 936 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 937 return FALSE;
24a5e751 938 }
225247f0
JT
939 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
940 {
941 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
942 but the kernel produces corefiles with OSABI=SysV. */
943 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
944 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
945 return FALSE;
946 }
24a5e751
L
947 else
948 {
949 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 950 return FALSE;
24a5e751
L
951 }
952
953 flags = i_ehdrp->e_flags;
30667bf3
AM
954 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
955 {
956 case EFA_PARISC_1_0:
957 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
958 case EFA_PARISC_1_1:
959 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
960 case EFA_PARISC_2_0:
961 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
962 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
963 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
964 }
b34976b6 965 return TRUE;
252b5132
RH
966}
967
30667bf3
AM
968/* Create the .plt and .got sections, and set up our hash table
969 short-cuts to various dynamic sections. */
970
b34976b6 971static bfd_boolean
c39a58e6 972elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 973{
83c81bfe 974 struct elf32_hppa_link_hash_table *htab;
875c0872 975 struct elf_link_hash_entry *eh;
edd21aca 976
30667bf3 977 /* Don't try to create the .plt and .got twice. */
83c81bfe 978 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
979 if (htab == NULL)
980 return FALSE;
83c81bfe 981 if (htab->splt != NULL)
b34976b6 982 return TRUE;
edd21aca 983
30667bf3
AM
984 /* Call the generic code to do most of the work. */
985 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 986 return FALSE;
252b5132 987
3d4d4302
AM
988 htab->splt = bfd_get_linker_section (abfd, ".plt");
989 htab->srelplt = bfd_get_linker_section (abfd, ".rela.plt");
30667bf3 990
3d4d4302
AM
991 htab->sgot = bfd_get_linker_section (abfd, ".got");
992 htab->srelgot = bfd_get_linker_section (abfd, ".rela.got");
edd21aca 993
3d4d4302
AM
994 htab->sdynbss = bfd_get_linker_section (abfd, ".dynbss");
995 htab->srelbss = bfd_get_linker_section (abfd, ".rela.bss");
30667bf3 996
b18e2ae5
AM
997 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
999 eh = elf_hash_table (info)->hgot;
1000 eh->forced_local = 0;
1001 eh->other = STV_DEFAULT;
1002 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1003}
1004
ebe50bae
AM
1005/* Copy the extra info we tack onto an elf_link_hash_entry. */
1006
51b64d56 1007static void
fcfa13d2 1008elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1009 struct elf_link_hash_entry *eh_dir,
1010 struct elf_link_hash_entry *eh_ind)
ebe50bae 1011{
875c0872 1012 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1013
875c0872
DA
1014 hh_dir = hppa_elf_hash_entry (eh_dir);
1015 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1016
875c0872 1017 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1018 {
875c0872 1019 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1020 {
875c0872
DA
1021 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1022 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1023
fcfa13d2 1024 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1025 list. Merge any entries against the same section. */
875c0872 1026 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1027 {
875c0872 1028 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1029
fcfa13d2
AM
1030 for (hdh_q = hh_dir->dyn_relocs;
1031 hdh_q != NULL;
1032 hdh_q = hdh_q->hdh_next)
875c0872 1033 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1034 {
1035#if RELATIVE_DYNRELOCS
875c0872 1036 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1037#endif
875c0872 1038 hdh_q->count += hdh_p->count;
a63e02c7 1039 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1040 break;
1041 }
875c0872 1042 if (hdh_q == NULL)
a63e02c7 1043 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1044 }
875c0872 1045 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1046 }
1047
875c0872
DA
1048 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1049 hh_ind->dyn_relocs = NULL;
ebe50bae 1050 }
ebe50bae 1051
4fc8051d 1052 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1053 && eh_ind->root.type != bfd_link_hash_indirect
1054 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1055 {
1056 /* If called to transfer flags for a weakdef during processing
1057 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
875c0872
DA
1059 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1060 eh_dir->ref_regular |= eh_ind->ref_regular;
1061 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1062 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1063 }
4fc8051d 1064 else
9b52905e
NC
1065 {
1066 if (eh_ind->root.type == bfd_link_hash_indirect
1067 && eh_dir->got.refcount <= 0)
1068 {
1069 hh_dir->tls_type = hh_ind->tls_type;
1070 hh_ind->tls_type = GOT_UNKNOWN;
1071 }
1072
1073 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1074 }
1075}
1076
1077static int
1078elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1079 int r_type, int is_local ATTRIBUTE_UNUSED)
1080{
1081 /* For now we don't support linker optimizations. */
1082 return r_type;
ebe50bae
AM
1083}
1084
d45b7d74
DA
1085/* Return a pointer to the local GOT, PLT and TLS reference counts
1086 for ABFD. Returns NULL if the storage allocation fails. */
1087
1088static bfd_signed_vma *
1089hppa32_elf_local_refcounts (bfd *abfd)
1090{
1091 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1092 bfd_signed_vma *local_refcounts;
68ffbac6 1093
d45b7d74
DA
1094 local_refcounts = elf_local_got_refcounts (abfd);
1095 if (local_refcounts == NULL)
1096 {
1097 bfd_size_type size;
1098
1099 /* Allocate space for local GOT and PLT reference
1100 counts. Done this way to save polluting elf_obj_tdata
1101 with another target specific pointer. */
1102 size = symtab_hdr->sh_info;
1103 size *= 2 * sizeof (bfd_signed_vma);
1104 /* Add in space to store the local GOT TLS types. */
1105 size += symtab_hdr->sh_info;
1106 local_refcounts = bfd_zalloc (abfd, size);
1107 if (local_refcounts == NULL)
1108 return NULL;
1109 elf_local_got_refcounts (abfd) = local_refcounts;
1110 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1111 symtab_hdr->sh_info);
1112 }
1113 return local_refcounts;
1114}
1115
1116
30667bf3 1117/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1118 calculate needed space in the global offset table, procedure linkage
1119 table, and dynamic reloc sections. At this point we haven't
1120 necessarily read all the input files. */
252b5132 1121
b34976b6 1122static bfd_boolean
c39a58e6
AM
1123elf32_hppa_check_relocs (bfd *abfd,
1124 struct bfd_link_info *info,
1125 asection *sec,
1126 const Elf_Internal_Rela *relocs)
252b5132 1127{
30667bf3 1128 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1129 struct elf_link_hash_entry **eh_syms;
1130 const Elf_Internal_Rela *rela;
1131 const Elf_Internal_Rela *rela_end;
83c81bfe 1132 struct elf32_hppa_link_hash_table *htab;
30667bf3 1133 asection *sreloc;
9b52905e 1134 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1135
1049f94e 1136 if (info->relocatable)
b34976b6 1137 return TRUE;
30667bf3 1138
83c81bfe 1139 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1140 if (htab == NULL)
1141 return FALSE;
30667bf3 1142 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1143 eh_syms = elf_sym_hashes (abfd);
30667bf3 1144 sreloc = NULL;
30667bf3 1145
875c0872
DA
1146 rela_end = relocs + sec->reloc_count;
1147 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1148 {
1149 enum {
1150 NEED_GOT = 1,
1151 NEED_PLT = 2,
1152 NEED_DYNREL = 4,
98ceb8ce 1153 PLT_PLABEL = 8
30667bf3 1154 };
edd21aca 1155
30667bf3 1156 unsigned int r_symndx, r_type;
875c0872
DA
1157 struct elf32_hppa_link_hash_entry *hh;
1158 int need_entry = 0;
252b5132 1159
875c0872 1160 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1161
30667bf3 1162 if (r_symndx < symtab_hdr->sh_info)
875c0872 1163 hh = NULL;
30667bf3 1164 else
f7c5057a 1165 {
875c0872 1166 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1167 while (hh->eh.root.type == bfd_link_hash_indirect
1168 || hh->eh.root.type == bfd_link_hash_warning)
1169 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
81fbe831
AM
1170
1171 /* PR15323, ref flags aren't set for references in the same
1172 object. */
1173 hh->eh.root.non_ir_ref = 1;
f7c5057a 1174 }
252b5132 1175
875c0872 1176 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1177 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1178
30667bf3
AM
1179 switch (r_type)
1180 {
1181 case R_PARISC_DLTIND14F:
1182 case R_PARISC_DLTIND14R:
1183 case R_PARISC_DLTIND21L:
1184 /* This symbol requires a global offset table entry. */
1185 need_entry = NEED_GOT;
30667bf3
AM
1186 break;
1187
1188 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1189 case R_PARISC_PLABEL21L:
1190 case R_PARISC_PLABEL32:
74d1c347 1191 /* If the addend is non-zero, we break badly. */
875c0872 1192 if (rela->r_addend != 0)
49e9d0d3 1193 abort ();
74d1c347
AM
1194
1195 /* If we are creating a shared library, then we need to
1196 create a PLT entry for all PLABELs, because PLABELs with
1197 local symbols may be passed via a pointer to another
1198 object. Additionally, output a dynamic relocation
4dc86686 1199 pointing to the PLT entry.
875c0872 1200
4dc86686
AM
1201 For executables, the original 32-bit ABI allowed two
1202 different styles of PLABELs (function pointers): For
1203 global functions, the PLABEL word points into the .plt
1204 two bytes past a (function address, gp) pair, and for
1205 local functions the PLABEL points directly at the
1206 function. The magic +2 for the first type allows us to
1207 differentiate between the two. As you can imagine, this
1208 is a real pain when it comes to generating code to call
1209 functions indirectly or to compare function pointers.
1210 We avoid the mess by always pointing a PLABEL into the
1211 .plt, even for local functions. */
74d1c347 1212 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1213 break;
1214
1215 case R_PARISC_PCREL12F:
83c81bfe 1216 htab->has_12bit_branch = 1;
067fa4a6
AM
1217 goto branch_common;
1218
30667bf3
AM
1219 case R_PARISC_PCREL17C:
1220 case R_PARISC_PCREL17F:
83c81bfe 1221 htab->has_17bit_branch = 1;
067fa4a6
AM
1222 goto branch_common;
1223
30667bf3 1224 case R_PARISC_PCREL22F:
067fa4a6
AM
1225 htab->has_22bit_branch = 1;
1226 branch_common:
47d89dba
AM
1227 /* Function calls might need to go through the .plt, and
1228 might require long branch stubs. */
875c0872 1229 if (hh == NULL)
30667bf3
AM
1230 {
1231 /* We know local syms won't need a .plt entry, and if
1232 they need a long branch stub we can't guarantee that
1233 we can reach the stub. So just flag an error later
1234 if we're doing a shared link and find we need a long
1235 branch stub. */
1236 continue;
1237 }
1238 else
1239 {
1240 /* Global symbols will need a .plt entry if they remain
1241 global, and in most cases won't need a long branch
1242 stub. Unfortunately, we have to cater for the case
1243 where a symbol is forced local by versioning, or due
1244 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1245 need_entry = NEED_PLT;
a63e02c7 1246 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1247 need_entry = 0;
30667bf3
AM
1248 }
1249 break;
1250
36751eee 1251 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1252 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1253 case R_PARISC_PCREL14F: /* PC relative load/store. */
1254 case R_PARISC_PCREL14R:
1255 case R_PARISC_PCREL17R: /* External branches. */
1256 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1257 case R_PARISC_PCREL32:
30667bf3
AM
1258 /* We don't need to propagate the relocation if linking a
1259 shared object since these are section relative. */
1260 continue;
1261
1262 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1263 case R_PARISC_DPREL14R:
1264 case R_PARISC_DPREL21L:
1265 if (info->shared)
1266 {
1267 (*_bfd_error_handler)
d003868e
AM
1268 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1269 abfd,
30667bf3
AM
1270 elf_hppa_howto_table[r_type].name);
1271 bfd_set_error (bfd_error_bad_value);
b34976b6 1272 return FALSE;
30667bf3
AM
1273 }
1274 /* Fall through. */
1275
1276 case R_PARISC_DIR17F: /* Used for external branches. */
1277 case R_PARISC_DIR17R:
47d89dba
AM
1278 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1279 case R_PARISC_DIR14R:
30667bf3 1280 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1281 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1282 /* We may want to output a dynamic relocation later. */
1283 need_entry = NEED_DYNREL;
1284 break;
1285
1286 /* This relocation describes the C++ object vtable hierarchy.
1287 Reconstruct it for later use during GC. */
1288 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1289 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1290 return FALSE;
30667bf3
AM
1291 continue;
1292
1293 /* This relocation describes which C++ vtable entries are actually
1294 used. Record for later use during GC. */
1295 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1296 BFD_ASSERT (hh != NULL);
1297 if (hh != NULL
1298 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1299 return FALSE;
30667bf3
AM
1300 continue;
1301
9b52905e
NC
1302 case R_PARISC_TLS_GD21L:
1303 case R_PARISC_TLS_GD14R:
1304 case R_PARISC_TLS_LDM21L:
1305 case R_PARISC_TLS_LDM14R:
1306 need_entry = NEED_GOT;
1307 break;
1308
1309 case R_PARISC_TLS_IE21L:
1310 case R_PARISC_TLS_IE14R:
1311 if (info->shared)
1312 info->flags |= DF_STATIC_TLS;
1313 need_entry = NEED_GOT;
1314 break;
1315
30667bf3
AM
1316 default:
1317 continue;
1318 }
1319
1320 /* Now carry out our orders. */
1321 if (need_entry & NEED_GOT)
1322 {
9b52905e
NC
1323 switch (r_type)
1324 {
1325 default:
1326 tls_type = GOT_NORMAL;
1327 break;
1328 case R_PARISC_TLS_GD21L:
1329 case R_PARISC_TLS_GD14R:
1330 tls_type |= GOT_TLS_GD;
1331 break;
1332 case R_PARISC_TLS_LDM21L:
1333 case R_PARISC_TLS_LDM14R:
1334 tls_type |= GOT_TLS_LDM;
1335 break;
1336 case R_PARISC_TLS_IE21L:
1337 case R_PARISC_TLS_IE14R:
1338 tls_type |= GOT_TLS_IE;
1339 break;
1340 }
1341
30667bf3 1342 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1343 relocation for this entry. */
83c81bfe 1344 if (htab->sgot == NULL)
30667bf3 1345 {
a63e02c7
DA
1346 if (htab->etab.dynobj == NULL)
1347 htab->etab.dynobj = abfd;
1348 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1349 return FALSE;
30667bf3
AM
1350 }
1351
9b52905e
NC
1352 if (r_type == R_PARISC_TLS_LDM21L
1353 || r_type == R_PARISC_TLS_LDM14R)
4dfe6ac6 1354 htab->tls_ldm_got.refcount += 1;
30667bf3
AM
1355 else
1356 {
9b52905e
NC
1357 if (hh != NULL)
1358 {
1359 hh->eh.got.refcount += 1;
1360 old_tls_type = hh->tls_type;
1361 }
1362 else
1363 {
1364 bfd_signed_vma *local_got_refcounts;
68ffbac6 1365
9b52905e 1366 /* This is a global offset table entry for a local symbol. */
d45b7d74 1367 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
9b52905e 1368 if (local_got_refcounts == NULL)
d45b7d74 1369 return FALSE;
9b52905e
NC
1370 local_got_refcounts[r_symndx] += 1;
1371
1372 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1373 }
1374
1375 tls_type |= old_tls_type;
1376
1377 if (old_tls_type != tls_type)
1378 {
1379 if (hh != NULL)
1380 hh->tls_type = tls_type;
1381 else
1382 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1383 }
1384
30667bf3
AM
1385 }
1386 }
1387
1388 if (need_entry & NEED_PLT)
1389 {
1390 /* If we are creating a shared library, and this is a reloc
1391 against a weak symbol or a global symbol in a dynamic
1392 object, then we will be creating an import stub and a
1393 .plt entry for the symbol. Similarly, on a normal link
1394 to symbols defined in a dynamic object we'll need the
1395 import stub and a .plt entry. We don't know yet whether
1396 the symbol is defined or not, so make an entry anyway and
1397 clean up later in adjust_dynamic_symbol. */
1398 if ((sec->flags & SEC_ALLOC) != 0)
1399 {
875c0872 1400 if (hh != NULL)
30667bf3 1401 {
a63e02c7
DA
1402 hh->eh.needs_plt = 1;
1403 hh->eh.plt.refcount += 1;
74d1c347 1404
36605136
AM
1405 /* If this .plt entry is for a plabel, mark it so
1406 that adjust_dynamic_symbol will keep the entry
1407 even if it appears to be local. */
74d1c347 1408 if (need_entry & PLT_PLABEL)
875c0872 1409 hh->plabel = 1;
74d1c347
AM
1410 }
1411 else if (need_entry & PLT_PLABEL)
1412 {
3ac8354b 1413 bfd_signed_vma *local_got_refcounts;
68fb2e56 1414 bfd_signed_vma *local_plt_refcounts;
74d1c347 1415
d45b7d74 1416 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1417 if (local_got_refcounts == NULL)
d45b7d74 1418 return FALSE;
68fb2e56
AM
1419 local_plt_refcounts = (local_got_refcounts
1420 + symtab_hdr->sh_info);
ebe50bae 1421 local_plt_refcounts[r_symndx] += 1;
30667bf3 1422 }
30667bf3
AM
1423 }
1424 }
1425
98ceb8ce 1426 if (need_entry & NEED_DYNREL)
30667bf3
AM
1427 {
1428 /* Flag this symbol as having a non-got, non-plt reference
1429 so that we generate copy relocs if it turns out to be
1430 dynamic. */
875c0872 1431 if (hh != NULL && !info->shared)
a63e02c7 1432 hh->eh.non_got_ref = 1;
30667bf3
AM
1433
1434 /* If we are creating a shared library then we need to copy
1435 the reloc into the shared library. However, if we are
1436 linking with -Bsymbolic, we need only copy absolute
1437 relocs or relocs against symbols that are not defined in
1438 an object we are including in the link. PC- or DP- or
1439 DLT-relative relocs against any local sym or global sym
1440 with DEF_REGULAR set, can be discarded. At this point we
1441 have not seen all the input files, so it is possible that
1442 DEF_REGULAR is not set now but will be set later (it is
1443 never cleared). We account for that possibility below by
98ceb8ce 1444 storing information in the dyn_relocs field of the
30667bf3
AM
1445 hash table entry.
1446
1447 A similar situation to the -Bsymbolic case occurs when
1448 creating shared libraries and symbol visibility changes
1449 render the symbol local.
1450
1451 As it turns out, all the relocs we will be creating here
1452 are absolute, so we cannot remove them on -Bsymbolic
1453 links or visibility changes anyway. A STUB_REL reloc
1454 is absolute too, as in that case it is the reloc in the
1455 stub we will be creating, rather than copying the PCREL
56882138
AM
1456 reloc in the branch.
1457
1458 If on the other hand, we are creating an executable, we
1459 may need to keep relocations for symbols satisfied by a
1460 dynamic library if we manage to avoid copy relocs for the
1461 symbol. */
446f2863
AM
1462 if ((info->shared
1463 && (sec->flags & SEC_ALLOC) != 0
1464 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1465 || (hh != NULL
446f2863 1466 && (!info->symbolic
a63e02c7
DA
1467 || hh->eh.root.type == bfd_link_hash_defweak
1468 || !hh->eh.def_regular))))
4fc8051d
AM
1469 || (ELIMINATE_COPY_RELOCS
1470 && !info->shared
446f2863 1471 && (sec->flags & SEC_ALLOC) != 0
875c0872 1472 && hh != NULL
a63e02c7
DA
1473 && (hh->eh.root.type == bfd_link_hash_defweak
1474 || !hh->eh.def_regular)))
30667bf3 1475 {
875c0872
DA
1476 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1477 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1478
30667bf3
AM
1479 /* Create a reloc section in dynobj and make room for
1480 this reloc. */
98ceb8ce 1481 if (sreloc == NULL)
30667bf3 1482 {
a63e02c7
DA
1483 if (htab->etab.dynobj == NULL)
1484 htab->etab.dynobj = abfd;
3ac8354b 1485
83bac4b0
NC
1486 sreloc = _bfd_elf_make_dynamic_reloc_section
1487 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1488
98ceb8ce 1489 if (sreloc == NULL)
30667bf3 1490 {
83bac4b0
NC
1491 bfd_set_error (bfd_error_bad_value);
1492 return FALSE;
30667bf3 1493 }
30667bf3
AM
1494 }
1495
98ceb8ce
AM
1496 /* If this is a global symbol, we count the number of
1497 relocations we need for this symbol. */
875c0872 1498 if (hh != NULL)
30667bf3 1499 {
875c0872 1500 hdh_head = &hh->dyn_relocs;
ec338859
AM
1501 }
1502 else
1503 {
1504 /* Track dynamic relocs needed for local syms too.
1505 We really need local syms available to do this
1506 easily. Oh well. */
875c0872 1507 asection *sr;
6edfbbad 1508 void *vpp;
87d72d41 1509 Elf_Internal_Sym *isym;
6edfbbad 1510
87d72d41
AM
1511 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1512 abfd, r_symndx);
1513 if (isym == NULL)
b34976b6 1514 return FALSE;
30667bf3 1515
87d72d41
AM
1516 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1517 if (sr == NULL)
1518 sr = sec;
1519
6edfbbad
DJ
1520 vpp = &elf_section_data (sr)->local_dynrel;
1521 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1522 }
1523
875c0872
DA
1524 hdh_p = *hdh_head;
1525 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1526 {
a63e02c7 1527 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1528 if (hdh_p == NULL)
b34976b6 1529 return FALSE;
a63e02c7 1530 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1531 *hdh_head = hdh_p;
1532 hdh_p->sec = sec;
1533 hdh_p->count = 0;
98ceb8ce 1534#if RELATIVE_DYNRELOCS
875c0872 1535 hdh_p->relative_count = 0;
98ceb8ce 1536#endif
ec338859 1537 }
98ceb8ce 1538
875c0872 1539 hdh_p->count += 1;
98ceb8ce 1540#if RELATIVE_DYNRELOCS
ec338859 1541 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1542 hdh_p->relative_count += 1;
98ceb8ce 1543#endif
30667bf3
AM
1544 }
1545 }
1546 }
edd21aca 1547
b34976b6 1548 return TRUE;
edd21aca
AM
1549}
1550
30667bf3
AM
1551/* Return the section that should be marked against garbage collection
1552 for a given relocation. */
1553
1554static asection *
c39a58e6 1555elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1556 struct bfd_link_info *info,
875c0872
DA
1557 Elf_Internal_Rela *rela,
1558 struct elf_link_hash_entry *hh,
c39a58e6 1559 Elf_Internal_Sym *sym)
30667bf3 1560{
875c0872 1561 if (hh != NULL)
07adf181
AM
1562 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1563 {
1564 case R_PARISC_GNU_VTINHERIT:
1565 case R_PARISC_GNU_VTENTRY:
1566 return NULL;
1567 }
30667bf3 1568
07adf181 1569 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1570}
1571
30667bf3
AM
1572/* Update the got and plt entry reference counts for the section being
1573 removed. */
edd21aca 1574
b34976b6 1575static bfd_boolean
c39a58e6
AM
1576elf32_hppa_gc_sweep_hook (bfd *abfd,
1577 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1578 asection *sec,
1579 const Elf_Internal_Rela *relocs)
edd21aca 1580{
30667bf3 1581 Elf_Internal_Shdr *symtab_hdr;
875c0872 1582 struct elf_link_hash_entry **eh_syms;
30667bf3 1583 bfd_signed_vma *local_got_refcounts;
74d1c347 1584 bfd_signed_vma *local_plt_refcounts;
875c0872 1585 const Elf_Internal_Rela *rela, *relend;
4dfe6ac6 1586 struct elf32_hppa_link_hash_table *htab;
30667bf3 1587
7dda2462
TG
1588 if (info->relocatable)
1589 return TRUE;
1590
4dfe6ac6
NC
1591 htab = hppa_link_hash_table (info);
1592 if (htab == NULL)
1593 return FALSE;
1594
ec338859 1595 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1596
30667bf3 1597 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1598 eh_syms = elf_sym_hashes (abfd);
30667bf3 1599 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1600 local_plt_refcounts = local_got_refcounts;
1601 if (local_plt_refcounts != NULL)
1602 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1603
30667bf3 1604 relend = relocs + sec->reloc_count;
875c0872 1605 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1606 {
1607 unsigned long r_symndx;
1608 unsigned int r_type;
875c0872 1609 struct elf_link_hash_entry *eh = NULL;
26e41594 1610
875c0872 1611 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1612 if (r_symndx >= symtab_hdr->sh_info)
1613 {
875c0872
DA
1614 struct elf32_hppa_link_hash_entry *hh;
1615 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1616 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1617
875c0872
DA
1618 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1619 while (eh->root.type == bfd_link_hash_indirect
1620 || eh->root.type == bfd_link_hash_warning)
1621 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1622 hh = hppa_elf_hash_entry (eh);
26e41594 1623
a63e02c7 1624 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1625 if (hdh_p->sec == sec)
26e41594
AM
1626 {
1627 /* Everything must go for SEC. */
a63e02c7 1628 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1629 break;
1630 }
1631 }
1632
875c0872 1633 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1634 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1635
26e41594
AM
1636 switch (r_type)
1637 {
1638 case R_PARISC_DLTIND14F:
1639 case R_PARISC_DLTIND14R:
1640 case R_PARISC_DLTIND21L:
9b52905e
NC
1641 case R_PARISC_TLS_GD21L:
1642 case R_PARISC_TLS_GD14R:
1643 case R_PARISC_TLS_IE21L:
1644 case R_PARISC_TLS_IE14R:
875c0872 1645 if (eh != NULL)
26e41594 1646 {
875c0872
DA
1647 if (eh->got.refcount > 0)
1648 eh->got.refcount -= 1;
26e41594
AM
1649 }
1650 else if (local_got_refcounts != NULL)
1651 {
1652 if (local_got_refcounts[r_symndx] > 0)
1653 local_got_refcounts[r_symndx] -= 1;
1654 }
1655 break;
98ceb8ce 1656
9b52905e
NC
1657 case R_PARISC_TLS_LDM21L:
1658 case R_PARISC_TLS_LDM14R:
4dfe6ac6 1659 htab->tls_ldm_got.refcount -= 1;
9b52905e
NC
1660 break;
1661
26e41594
AM
1662 case R_PARISC_PCREL12F:
1663 case R_PARISC_PCREL17C:
1664 case R_PARISC_PCREL17F:
1665 case R_PARISC_PCREL22F:
875c0872 1666 if (eh != NULL)
26e41594 1667 {
875c0872
DA
1668 if (eh->plt.refcount > 0)
1669 eh->plt.refcount -= 1;
26e41594
AM
1670 }
1671 break;
1672
1673 case R_PARISC_PLABEL14R:
1674 case R_PARISC_PLABEL21L:
1675 case R_PARISC_PLABEL32:
875c0872 1676 if (eh != NULL)
26e41594 1677 {
875c0872
DA
1678 if (eh->plt.refcount > 0)
1679 eh->plt.refcount -= 1;
26e41594
AM
1680 }
1681 else if (local_plt_refcounts != NULL)
1682 {
1683 if (local_plt_refcounts[r_symndx] > 0)
1684 local_plt_refcounts[r_symndx] -= 1;
1685 }
1686 break;
1687
1688 default:
1689 break;
1690 }
1691 }
252b5132 1692
b34976b6 1693 return TRUE;
252b5132
RH
1694}
1695
edfc032f
AM
1696/* Support for core dump NOTE sections. */
1697
1698static bfd_boolean
1699elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1700{
1701 int offset;
1702 size_t size;
1703
1704 switch (note->descsz)
1705 {
1706 default:
1707 return FALSE;
1708
1709 case 396: /* Linux/hppa */
1710 /* pr_cursig */
228e534f 1711 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1712
1713 /* pr_pid */
228e534f 1714 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1715
1716 /* pr_reg */
1717 offset = 72;
1718 size = 320;
1719
1720 break;
1721 }
1722
1723 /* Make a ".reg/999" section. */
1724 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1725 size, note->descpos + offset);
1726}
1727
1728static bfd_boolean
1729elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1730{
1731 switch (note->descsz)
1732 {
1733 default:
1734 return FALSE;
1735
1736 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1737 elf_tdata (abfd)->core->program
edfc032f 1738 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1739 elf_tdata (abfd)->core->command
edfc032f
AM
1740 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1741 }
1742
1743 /* Note that for some reason, a spurious space is tacked
1744 onto the end of the args in some (at least one anyway)
1745 implementations, so strip it off if it exists. */
1746 {
228e534f 1747 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1748 int n = strlen (command);
1749
1750 if (0 < n && command[n - 1] == ' ')
1751 command[n - 1] = '\0';
1752 }
1753
1754 return TRUE;
1755}
1756
74d1c347
AM
1757/* Our own version of hide_symbol, so that we can keep plt entries for
1758 plabels. */
1759
1760static void
c39a58e6 1761elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1762 struct elf_link_hash_entry *eh,
c39a58e6 1763 bfd_boolean force_local)
74d1c347 1764{
e5094212
AM
1765 if (force_local)
1766 {
875c0872
DA
1767 eh->forced_local = 1;
1768 if (eh->dynindx != -1)
e5094212 1769 {
875c0872 1770 eh->dynindx = -1;
e5094212 1771 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1772 eh->dynstr_index);
e5094212
AM
1773 }
1774 }
1775
4340287b
DA
1776 /* STT_GNU_IFUNC symbol must go through PLT. */
1777 if (! hppa_elf_hash_entry (eh)->plabel
1778 && eh->type != STT_GNU_IFUNC)
74d1c347 1779 {
875c0872 1780 eh->needs_plt = 0;
4340287b 1781 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1782 }
1783}
1784
30667bf3
AM
1785/* Adjust a symbol defined by a dynamic object and referenced by a
1786 regular object. The current definition is in some section of the
1787 dynamic object, but we're not including those sections. We have to
1788 change the definition to something the rest of the link can
1789 understand. */
252b5132 1790
b34976b6 1791static bfd_boolean
c39a58e6 1792elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1793 struct elf_link_hash_entry *eh)
252b5132 1794{
83c81bfe 1795 struct elf32_hppa_link_hash_table *htab;
875c0872 1796 asection *sec;
30667bf3
AM
1797
1798 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1799 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1800 if (eh->type == STT_FUNC
1801 || eh->needs_plt)
30667bf3 1802 {
4340287b
DA
1803 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1804 The refcounts are not reliable when it has been hidden since
1805 hide_symbol can be called before the plabel flag is set. */
1806 if (hppa_elf_hash_entry (eh)->plabel
1807 && eh->plt.refcount <= 0)
1808 eh->plt.refcount = 1;
1809
875c0872
DA
1810 if (eh->plt.refcount <= 0
1811 || (eh->def_regular
1812 && eh->root.type != bfd_link_hash_defweak
1813 && ! hppa_elf_hash_entry (eh)->plabel
30667bf3
AM
1814 && (!info->shared || info->symbolic)))
1815 {
1816 /* The .plt entry is not needed when:
1817 a) Garbage collection has removed all references to the
1818 symbol, or
1819 b) We know for certain the symbol is defined in this
74d1c347
AM
1820 object, and it's not a weak definition, nor is the symbol
1821 used by a plabel relocation. Either this object is the
1822 application or we are doing a shared symbolic link. */
1823
875c0872
DA
1824 eh->plt.offset = (bfd_vma) -1;
1825 eh->needs_plt = 0;
30667bf3 1826 }
4dc86686 1827
b34976b6 1828 return TRUE;
30667bf3 1829 }
bbd7ec4a 1830 else
875c0872 1831 eh->plt.offset = (bfd_vma) -1;
edd21aca 1832
30667bf3
AM
1833 /* If this is a weak symbol, and there is a real definition, the
1834 processor independent code will have arranged for us to see the
1835 real definition first, and we can just use the same value. */
875c0872 1836 if (eh->u.weakdef != NULL)
edd21aca 1837 {
875c0872
DA
1838 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1839 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1840 abort ();
875c0872
DA
1841 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1842 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1843 if (ELIMINATE_COPY_RELOCS)
875c0872 1844 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1845 return TRUE;
30667bf3 1846 }
edd21aca 1847
30667bf3
AM
1848 /* This is a reference to a symbol defined by a dynamic object which
1849 is not a function. */
1850
1851 /* If we are creating a shared library, we must presume that the
1852 only references to the symbol are via the global offset table.
1853 For such cases we need not do anything here; the relocations will
1854 be handled correctly by relocate_section. */
1855 if (info->shared)
b34976b6 1856 return TRUE;
30667bf3
AM
1857
1858 /* If there are no references to this symbol that do not use the
1859 GOT, we don't need to generate a copy reloc. */
875c0872 1860 if (!eh->non_got_ref)
b34976b6 1861 return TRUE;
30667bf3 1862
4fc8051d 1863 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1864 {
875c0872
DA
1865 struct elf32_hppa_link_hash_entry *hh;
1866 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1867
875c0872 1868 hh = hppa_elf_hash_entry (eh);
a63e02c7 1869 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1870 {
875c0872
DA
1871 sec = hdh_p->sec->output_section;
1872 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1873 break;
1874 }
1875
1876 /* If we didn't find any dynamic relocs in read-only sections, then
1877 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1878 if (hdh_p == NULL)
4fc8051d 1879 {
875c0872 1880 eh->non_got_ref = 0;
4fc8051d
AM
1881 return TRUE;
1882 }
ebe50bae
AM
1883 }
1884
30667bf3
AM
1885 /* We must allocate the symbol in our .dynbss section, which will
1886 become part of the .bss section of the executable. There will be
1887 an entry for this symbol in the .dynsym section. The dynamic
1888 object will contain position independent code, so all references
1889 from the dynamic object to this symbol will go through the global
1890 offset table. The dynamic linker will use the .dynsym entry to
1891 determine the address it must put in the global offset table, so
1892 both the dynamic object and the regular object will refer to the
1893 same memory location for the variable. */
1894
3ac8354b 1895 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1896 if (htab == NULL)
1897 return FALSE;
30667bf3
AM
1898
1899 /* We must generate a COPY reloc to tell the dynamic linker to
1900 copy the initial value out of the dynamic object and into the
3ac8354b 1901 runtime process image. */
1d7e9d18 1902 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1903 {
eea6121a 1904 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1905 eh->needs_copy = 1;
edd21aca 1906 }
252b5132 1907
875c0872 1908 sec = htab->sdynbss;
edd21aca 1909
027297b7 1910 return _bfd_elf_adjust_dynamic_copy (eh, sec);
252b5132
RH
1911}
1912
e5ee5df1 1913/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1914 ie. plabel entries. */
a8d02d66 1915
b34976b6 1916static bfd_boolean
875c0872 1917allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1918{
1919 struct bfd_link_info *info;
1920 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1921 struct elf32_hppa_link_hash_entry *hh;
1922 asection *sec;
a8d02d66 1923
875c0872 1924 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1925 return TRUE;
a8d02d66 1926
875c0872 1927 info = (struct bfd_link_info *) inf;
9b52905e 1928 hh = hppa_elf_hash_entry (eh);
a8d02d66 1929 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1930 if (htab == NULL)
1931 return FALSE;
1932
a63e02c7 1933 if (htab->etab.dynamic_sections_created
875c0872 1934 && eh->plt.refcount > 0)
e5ee5df1
AM
1935 {
1936 /* Make sure this symbol is output as a dynamic symbol.
1937 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1938 if (eh->dynindx == -1
1939 && !eh->forced_local
1940 && eh->type != STT_PARISC_MILLI)
a8d02d66 1941 {
875c0872 1942 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1943 return FALSE;
e5ee5df1
AM
1944 }
1945
875c0872 1946 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1947 {
067fa4a6
AM
1948 /* Allocate these later. From this point on, h->plabel
1949 means that the plt entry is only used by a plabel.
1950 We'll be using a normal plt entry for this symbol, so
1951 clear the plabel indicator. */
68ffbac6 1952
875c0872 1953 hh->plabel = 0;
e5ee5df1 1954 }
875c0872 1955 else if (hh->plabel)
e5ee5df1
AM
1956 {
1957 /* Make an entry in the .plt section for plabel references
1958 that won't have a .plt entry for other reasons. */
875c0872
DA
1959 sec = htab->splt;
1960 eh->plt.offset = sec->size;
1961 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1962 }
1963 else
e5ee5df1
AM
1964 {
1965 /* No .plt entry needed. */
875c0872
DA
1966 eh->plt.offset = (bfd_vma) -1;
1967 eh->needs_plt = 0;
e5ee5df1
AM
1968 }
1969 }
1970 else
1971 {
875c0872
DA
1972 eh->plt.offset = (bfd_vma) -1;
1973 eh->needs_plt = 0;
a8d02d66
AM
1974 }
1975
b34976b6 1976 return TRUE;
a8d02d66
AM
1977}
1978
4dc86686
AM
1979/* Allocate space in .plt, .got and associated reloc sections for
1980 global syms. */
1981
b34976b6 1982static bfd_boolean
875c0872 1983allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1984{
1985 struct bfd_link_info *info;
83c81bfe 1986 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1987 asection *sec;
1988 struct elf32_hppa_link_hash_entry *hh;
1989 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 1990
875c0872 1991 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1992 return TRUE;
73a74a62 1993
c39a58e6 1994 info = inf;
83c81bfe 1995 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1996 if (htab == NULL)
1997 return FALSE;
1998
875c0872 1999 hh = hppa_elf_hash_entry (eh);
68ffbac6 2000
a63e02c7 2001 if (htab->etab.dynamic_sections_created
875c0872
DA
2002 && eh->plt.offset != (bfd_vma) -1
2003 && !hh->plabel
2004 && eh->plt.refcount > 0)
4dc86686 2005 {
e5ee5df1 2006 /* Make an entry in the .plt section. */
875c0872
DA
2007 sec = htab->splt;
2008 eh->plt.offset = sec->size;
2009 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2010
e5ee5df1 2011 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2012 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2013 htab->need_plt_stub = 1;
4dc86686 2014 }
edd21aca 2015
875c0872 2016 if (eh->got.refcount > 0)
4dc86686 2017 {
446f2863
AM
2018 /* Make sure this symbol is output as a dynamic symbol.
2019 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2020 if (eh->dynindx == -1
2021 && !eh->forced_local
2022 && eh->type != STT_PARISC_MILLI)
446f2863 2023 {
875c0872 2024 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2025 return FALSE;
446f2863
AM
2026 }
2027
875c0872
DA
2028 sec = htab->sgot;
2029 eh->got.offset = sec->size;
2030 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2031 /* R_PARISC_TLS_GD* needs two GOT entries */
2032 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2033 sec->size += GOT_ENTRY_SIZE * 2;
2034 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2035 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2036 if (htab->etab.dynamic_sections_created
ce757d15 2037 && (info->shared
875c0872
DA
2038 || (eh->dynindx != -1
2039 && !eh->forced_local)))
ce757d15 2040 {
eea6121a 2041 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2042 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2043 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2044 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2045 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2046 }
4dc86686
AM
2047 }
2048 else
875c0872 2049 eh->got.offset = (bfd_vma) -1;
30667bf3 2050
875c0872 2051 if (hh->dyn_relocs == NULL)
b34976b6 2052 return TRUE;
30667bf3 2053
98ceb8ce
AM
2054 /* If this is a -Bsymbolic shared link, then we need to discard all
2055 space allocated for dynamic pc-relative relocs against symbols
2056 defined in a regular object. For the normal shared case, discard
2057 space for relocs that have become local due to symbol visibility
2058 changes. */
2059 if (info->shared)
446f2863 2060 {
98ceb8ce 2061#if RELATIVE_DYNRELOCS
875c0872 2062 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2063 {
875c0872 2064 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2065
875c0872 2066 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2067 {
875c0872
DA
2068 hdh_p->count -= hdh_p->relative_count;
2069 hdh_p->relative_count = 0;
2070 if (hdh_p->count == 0)
a63e02c7 2071 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2072 else
a63e02c7 2073 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2074 }
2075 }
2076#endif
4fc8051d
AM
2077
2078 /* Also discard relocs on undefined weak syms with non-default
2079 visibility. */
22d606e9 2080 if (hh->dyn_relocs != NULL
875c0872 2081 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2082 {
2083 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2084 hh->dyn_relocs = NULL;
2085
2086 /* Make sure undefined weak symbols are output as a dynamic
2087 symbol in PIEs. */
2088 else if (eh->dynindx == -1
2089 && !eh->forced_local)
2090 {
2091 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2092 return FALSE;
2093 }
2094 }
446f2863 2095 }
98ceb8ce 2096 else
30667bf3 2097 {
98ceb8ce
AM
2098 /* For the non-shared case, discard space for relocs against
2099 symbols which turn out to need copy relocs or are not
2100 dynamic. */
68ffbac6 2101
875c0872 2102 if (!eh->non_got_ref
4fc8051d 2103 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2104 && eh->def_dynamic
2105 && !eh->def_regular)
a63e02c7 2106 || (htab->etab.dynamic_sections_created
875c0872
DA
2107 && (eh->root.type == bfd_link_hash_undefweak
2108 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2109 {
2110 /* Make sure this symbol is output as a dynamic symbol.
2111 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2112 if (eh->dynindx == -1
2113 && !eh->forced_local
2114 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2115 {
875c0872 2116 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2117 return FALSE;
98ceb8ce
AM
2118 }
2119
2120 /* If that succeeded, we know we'll be keeping all the
2121 relocs. */
875c0872 2122 if (eh->dynindx != -1)
98ceb8ce
AM
2123 goto keep;
2124 }
446f2863 2125
875c0872 2126 hh->dyn_relocs = NULL;
b34976b6 2127 return TRUE;
98ceb8ce 2128
ec338859 2129 keep: ;
30667bf3 2130 }
30667bf3 2131
98ceb8ce 2132 /* Finally, allocate space. */
a63e02c7 2133 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2134 {
875c0872
DA
2135 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2136 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2137 }
30667bf3 2138
b34976b6 2139 return TRUE;
30667bf3 2140}
30667bf3 2141
d5c73c2f
AM
2142/* This function is called via elf_link_hash_traverse to force
2143 millicode symbols local so they do not end up as globals in the
2144 dynamic symbol table. We ought to be able to do this in
2145 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2146 for all dynamic symbols. Arguably, this is a bug in
2147 elf_adjust_dynamic_symbol. */
2148
b34976b6 2149static bfd_boolean
875c0872 2150clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2151 struct bfd_link_info *info)
d5c73c2f 2152{
875c0872
DA
2153 if (eh->type == STT_PARISC_MILLI
2154 && !eh->forced_local)
e0522e89 2155 {
875c0872 2156 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2157 }
b34976b6 2158 return TRUE;
d5c73c2f
AM
2159}
2160
98ceb8ce
AM
2161/* Find any dynamic relocs that apply to read-only sections. */
2162
b34976b6 2163static bfd_boolean
875c0872 2164readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2165{
875c0872
DA
2166 struct elf32_hppa_link_hash_entry *hh;
2167 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2168
875c0872 2169 hh = hppa_elf_hash_entry (eh);
a63e02c7 2170 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2171 {
875c0872 2172 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2173
875c0872 2174 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2175 {
c39a58e6 2176 struct bfd_link_info *info = inf;
98ceb8ce
AM
2177
2178 info->flags |= DF_TEXTREL;
2179
2180 /* Not an error, just cut short the traversal. */
b34976b6 2181 return FALSE;
98ceb8ce
AM
2182 }
2183 }
b34976b6 2184 return TRUE;
98ceb8ce
AM
2185}
2186
30667bf3
AM
2187/* Set the sizes of the dynamic sections. */
2188
b34976b6 2189static bfd_boolean
c39a58e6
AM
2190elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2191 struct bfd_link_info *info)
30667bf3 2192{
83c81bfe 2193 struct elf32_hppa_link_hash_table *htab;
30667bf3 2194 bfd *dynobj;
98ceb8ce 2195 bfd *ibfd;
875c0872 2196 asection *sec;
b34976b6 2197 bfd_boolean relocs;
30667bf3 2198
83c81bfe 2199 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2200 if (htab == NULL)
2201 return FALSE;
2202
a63e02c7 2203 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2204 if (dynobj == NULL)
2205 abort ();
30667bf3 2206
a63e02c7 2207 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2208 {
2209 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2210 if (info->executable)
30667bf3 2211 {
3d4d4302 2212 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2213 if (sec == NULL)
49e9d0d3 2214 abort ();
875c0872
DA
2215 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2216 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2217 }
74d1c347 2218
d5c73c2f 2219 /* Force millicode symbols local. */
a63e02c7 2220 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2221 clobber_millicode_symbols,
2222 info);
68fb2e56 2223 }
d5c73c2f 2224
98ceb8ce
AM
2225 /* Set up .got and .plt offsets for local syms, and space for local
2226 dynamic relocs. */
2227 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
68fb2e56
AM
2228 {
2229 bfd_signed_vma *local_got;
2230 bfd_signed_vma *end_local_got;
2231 bfd_signed_vma *local_plt;
2232 bfd_signed_vma *end_local_plt;
2233 bfd_size_type locsymcount;
2234 Elf_Internal_Shdr *symtab_hdr;
2235 asection *srel;
9b52905e 2236 char *local_tls_type;
74d1c347 2237
98ceb8ce 2238 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2239 continue;
4dc86686 2240
875c0872 2241 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2242 {
875c0872 2243 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2244
875c0872
DA
2245 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2246 elf_section_data (sec)->local_dynrel);
2247 hdh_p != NULL;
a63e02c7 2248 hdh_p = hdh_p->hdh_next)
98ceb8ce 2249 {
875c0872
DA
2250 if (!bfd_is_abs_section (hdh_p->sec)
2251 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2252 {
2253 /* Input section has been discarded, either because
2254 it is a copy of a linkonce section or due to
2255 linker script /DISCARD/, so we'll be discarding
2256 the relocs too. */
2257 }
875c0872 2258 else if (hdh_p->count != 0)
ec338859 2259 {
875c0872
DA
2260 srel = elf_section_data (hdh_p->sec)->sreloc;
2261 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2262 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2263 info->flags |= DF_TEXTREL;
ec338859 2264 }
98ceb8ce
AM
2265 }
2266 }
2267
2268 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2269 if (!local_got)
2270 continue;
74d1c347 2271
98ceb8ce 2272 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2273 locsymcount = symtab_hdr->sh_info;
2274 end_local_got = local_got + locsymcount;
9b52905e 2275 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2276 sec = htab->sgot;
83c81bfe 2277 srel = htab->srelgot;
68fb2e56
AM
2278 for (; local_got < end_local_got; ++local_got)
2279 {
2280 if (*local_got > 0)
4dc86686 2281 {
875c0872
DA
2282 *local_got = sec->size;
2283 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2284 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2285 sec->size += 2 * GOT_ENTRY_SIZE;
2286 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2287 sec->size += GOT_ENTRY_SIZE;
68ffbac6 2288 if (info->shared)
9b52905e
NC
2289 {
2290 srel->size += sizeof (Elf32_External_Rela);
2291 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2292 srel->size += 2 * sizeof (Elf32_External_Rela);
2293 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2294 srel->size += sizeof (Elf32_External_Rela);
2295 }
4dc86686 2296 }
68fb2e56
AM
2297 else
2298 *local_got = (bfd_vma) -1;
9b52905e
NC
2299
2300 ++local_tls_type;
68fb2e56 2301 }
74d1c347 2302
68fb2e56
AM
2303 local_plt = end_local_got;
2304 end_local_plt = local_plt + locsymcount;
a63e02c7 2305 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2306 {
2307 /* Won't be used, but be safe. */
2308 for (; local_plt < end_local_plt; ++local_plt)
2309 *local_plt = (bfd_vma) -1;
2310 }
2311 else
2312 {
875c0872 2313 sec = htab->splt;
83c81bfe 2314 srel = htab->srelplt;
74d1c347
AM
2315 for (; local_plt < end_local_plt; ++local_plt)
2316 {
2317 if (*local_plt > 0)
2318 {
875c0872
DA
2319 *local_plt = sec->size;
2320 sec->size += PLT_ENTRY_SIZE;
74d1c347 2321 if (info->shared)
eea6121a 2322 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2323 }
2324 else
2325 *local_plt = (bfd_vma) -1;
2326 }
2327 }
30667bf3 2328 }
68ffbac6 2329
9b52905e
NC
2330 if (htab->tls_ldm_got.refcount > 0)
2331 {
68ffbac6 2332 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e
NC
2333 R_PARISC_TLS_DTPMOD32 relocs. */
2334 htab->tls_ldm_got.offset = htab->sgot->size;
2335 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2336 htab->srelgot->size += sizeof (Elf32_External_Rela);
2337 }
2338 else
2339 htab->tls_ldm_got.offset = -1;
30667bf3 2340
e5ee5df1
AM
2341 /* Do all the .plt entries without relocs first. The dynamic linker
2342 uses the last .plt reloc to find the end of the .plt (and hence
2343 the start of the .got) for lazy linking. */
a63e02c7 2344 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2345
98ceb8ce
AM
2346 /* Allocate global sym .plt and .got entries, and space for global
2347 sym dynamic relocs. */
a63e02c7 2348 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2349
2350 /* The check_relocs and adjust_dynamic_symbol entry points have
2351 determined the sizes of the various dynamic sections. Allocate
2352 memory for them. */
b34976b6 2353 relocs = FALSE;
875c0872 2354 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2355 {
875c0872 2356 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2357 continue;
2358
875c0872 2359 if (sec == htab->splt)
68fb2e56 2360 {
83c81bfe 2361 if (htab->need_plt_stub)
68fb2e56
AM
2362 {
2363 /* Make space for the plt stub at the end of the .plt
2364 section. We want this stub right at the end, up
2365 against the .got section. */
83c81bfe 2366 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2367 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2368 bfd_size_type mask;
30667bf3 2369
68fb2e56 2370 if (gotalign > pltalign)
a253d456 2371 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2372 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2373 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2374 }
2375 }
c456f082
AM
2376 else if (sec == htab->sgot
2377 || sec == htab->sdynbss)
68fb2e56 2378 ;
0112cd26 2379 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2380 {
875c0872 2381 if (sec->size != 0)
30667bf3 2382 {
4e12ff7f
AM
2383 /* Remember whether there are any reloc sections other
2384 than .rela.plt. */
875c0872 2385 if (sec != htab->srelplt)
b34976b6 2386 relocs = TRUE;
47d89dba 2387
30667bf3
AM
2388 /* We use the reloc_count field as a counter if we need
2389 to copy relocs into the output file. */
875c0872 2390 sec->reloc_count = 0;
30667bf3
AM
2391 }
2392 }
30667bf3
AM
2393 else
2394 {
2395 /* It's not one of our sections, so don't allocate space. */
2396 continue;
2397 }
2398
875c0872 2399 if (sec->size == 0)
30667bf3
AM
2400 {
2401 /* If we don't need this section, strip it from the
2402 output file. This is mostly to handle .rela.bss and
2403 .rela.plt. We must create both sections in
2404 create_dynamic_sections, because they must be created
2405 before the linker maps input sections to output
2406 sections. The linker does that before
2407 adjust_dynamic_symbol is called, and it is that
2408 function which decides whether anything needs to go
2409 into these sections. */
875c0872 2410 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2411 continue;
2412 }
2413
c456f082
AM
2414 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2415 continue;
2416
30667bf3
AM
2417 /* Allocate memory for the section contents. Zero it, because
2418 we may not fill in all the reloc sections. */
875c0872 2419 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2420 if (sec->contents == NULL)
b34976b6 2421 return FALSE;
30667bf3
AM
2422 }
2423
a63e02c7 2424 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2425 {
2426 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2427 actually has nothing to do with the PLT, it is how we
2428 communicate the LTP value of a load module to the dynamic
2429 linker. */
dc810e39 2430#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2431 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2432
2433 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2434 return FALSE;
30667bf3
AM
2435
2436 /* Add some entries to the .dynamic section. We fill in the
2437 values later, in elf32_hppa_finish_dynamic_sections, but we
2438 must add the entries now so that we get the correct size for
2439 the .dynamic section. The DT_DEBUG entry is filled in by the
2440 dynamic linker and used by the debugger. */
3c27d551 2441 if (info->executable)
30667bf3 2442 {
dc810e39 2443 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2444 return FALSE;
30667bf3
AM
2445 }
2446
eea6121a 2447 if (htab->srelplt->size != 0)
30667bf3 2448 {
dc810e39
AM
2449 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2450 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2451 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2452 return FALSE;
30667bf3
AM
2453 }
2454
2455 if (relocs)
2456 {
dc810e39
AM
2457 if (!add_dynamic_entry (DT_RELA, 0)
2458 || !add_dynamic_entry (DT_RELASZ, 0)
2459 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2460 return FALSE;
30667bf3 2461
98ceb8ce
AM
2462 /* If any dynamic relocs apply to a read-only section,
2463 then we need a DT_TEXTREL entry. */
248866a8 2464 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2465 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2466
2467 if ((info->flags & DF_TEXTREL) != 0)
2468 {
2469 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2470 return FALSE;
98ceb8ce 2471 }
30667bf3
AM
2472 }
2473 }
dc810e39 2474#undef add_dynamic_entry
30667bf3 2475
b34976b6 2476 return TRUE;
30667bf3
AM
2477}
2478
30667bf3
AM
2479/* External entry points for sizing and building linker stubs. */
2480
b4655ea9
AM
2481/* Set up various things so that we can make a list of input sections
2482 for each output section included in the link. Returns -1 on error,
cedb70c5 2483 0 when no stubs will be needed, and 1 on success. */
30667bf3 2484
b4655ea9 2485int
c39a58e6 2486elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2487{
2488 bfd *input_bfd;
b4655ea9
AM
2489 unsigned int bfd_count;
2490 int top_id, top_index;
30667bf3 2491 asection *section;
25f72752 2492 asection **input_list, **list;
dc810e39 2493 bfd_size_type amt;
b4655ea9 2494 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2495
4dfe6ac6
NC
2496 if (htab == NULL)
2497 return -1;
2498
1badb539
AM
2499 /* Count the number of input BFDs and find the top input section id. */
2500 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2501 input_bfd != NULL;
2502 input_bfd = input_bfd->link_next)
2503 {
2504 bfd_count += 1;
25f72752
AM
2505 for (section = input_bfd->sections;
2506 section != NULL;
2507 section = section->next)
2508 {
2509 if (top_id < section->id)
2510 top_id = section->id;
2511 }
30667bf3 2512 }
b4655ea9 2513 htab->bfd_count = bfd_count;
30667bf3 2514
dc810e39 2515 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2516 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2517 if (htab->stub_group == NULL)
b4655ea9 2518 return -1;
1badb539 2519
b4655ea9 2520 /* We can't use output_bfd->section_count here to find the top output
1badb539 2521 section index as some sections may have been removed, and
8423293d 2522 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2523 for (section = output_bfd->sections, top_index = 0;
2524 section != NULL;
2525 section = section->next)
2526 {
2527 if (top_index < section->index)
2528 top_index = section->index;
2529 }
2530
b4655ea9 2531 htab->top_index = top_index;
dc810e39 2532 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2533 input_list = bfd_malloc (amt);
b4655ea9 2534 htab->input_list = input_list;
25f72752 2535 if (input_list == NULL)
b4655ea9 2536 return -1;
25f72752 2537
1badb539
AM
2538 /* For sections we aren't interested in, mark their entries with a
2539 value we can check later. */
2540 list = input_list + top_index;
2541 do
2542 *list = bfd_abs_section_ptr;
2543 while (list-- != input_list);
2544
2545 for (section = output_bfd->sections;
2546 section != NULL;
2547 section = section->next)
2548 {
47d89dba 2549 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2550 input_list[section->index] = NULL;
2551 }
2552
b4655ea9
AM
2553 return 1;
2554}
2555
2556/* The linker repeatedly calls this function for each input section,
2557 in the order that input sections are linked into output sections.
2558 Build lists of input sections to determine groupings between which
2559 we may insert linker stubs. */
2560
2561void
c39a58e6 2562elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2563{
2564 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2565
4dfe6ac6
NC
2566 if (htab == NULL)
2567 return;
2568
b4655ea9 2569 if (isec->output_section->index <= htab->top_index)
25f72752 2570 {
b4655ea9
AM
2571 asection **list = htab->input_list + isec->output_section->index;
2572 if (*list != bfd_abs_section_ptr)
25f72752 2573 {
b4655ea9 2574 /* Steal the link_sec pointer for our list. */
83c81bfe 2575#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2576 /* This happens to make the list in reverse order,
2577 which is what we want. */
2578 PREV_SEC (isec) = *list;
2579 *list = isec;
25f72752
AM
2580 }
2581 }
b4655ea9 2582}
25f72752 2583
b4655ea9
AM
2584/* See whether we can group stub sections together. Grouping stub
2585 sections may result in fewer stubs. More importantly, we need to
2586 put all .init* and .fini* stubs at the beginning of the .init or
2587 .fini output sections respectively, because glibc splits the
2588 _init and _fini functions into multiple parts. Putting a stub in
2589 the middle of a function is not a good idea. */
2590
2591static void
c39a58e6
AM
2592group_sections (struct elf32_hppa_link_hash_table *htab,
2593 bfd_size_type stub_group_size,
2594 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2595{
2596 asection **list = htab->input_list + htab->top_index;
1badb539 2597 do
25f72752
AM
2598 {
2599 asection *tail = *list;
1badb539
AM
2600 if (tail == bfd_abs_section_ptr)
2601 continue;
25f72752
AM
2602 while (tail != NULL)
2603 {
2604 asection *curr;
2605 asection *prev;
2606 bfd_size_type total;
00b28bb0 2607 bfd_boolean big_sec;
25f72752
AM
2608
2609 curr = tail;
eea6121a 2610 total = tail->size;
00b28bb0
AM
2611 big_sec = total >= stub_group_size;
2612
25f72752
AM
2613 while ((prev = PREV_SEC (curr)) != NULL
2614 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2615 < stub_group_size))
25f72752
AM
2616 curr = prev;
2617
2618 /* OK, the size from the start of CURR to the end is less
a248e267 2619 than 240000 bytes and thus can be handled by one stub
25f72752 2620 section. (or the tail section is itself larger than
a248e267 2621 240000 bytes, in which case we may be toast.)
25f72752
AM
2622 We should really be keeping track of the total size of
2623 stubs added here, as stubs contribute to the final output
2624 section size. That's a little tricky, and this way will
a248e267
AM
2625 only break if stubs added total more than 22144 bytes, or
2626 2768 long branch stubs. It seems unlikely for more than
2627 2768 different functions to be called, especially from
2628 code only 240000 bytes long. This limit used to be
2629 250000, but c++ code tends to generate lots of little
2630 functions, and sometimes violated the assumption. */
25f72752
AM
2631 do
2632 {
2633 prev = PREV_SEC (tail);
2634 /* Set up this stub group. */
83c81bfe 2635 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2636 }
2637 while (tail != curr && (tail = prev) != NULL);
2638
a248e267 2639 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2640 bytes before the stub section can be handled by it too.
2641 Don't do this if we have a really large section after the
2642 stubs, as adding more stubs increases the chance that
2643 branches may not reach into the stub section. */
2644 if (!stubs_always_before_branch && !big_sec)
25f72752 2645 {
47d89dba
AM
2646 total = 0;
2647 while (prev != NULL
2648 && ((total += tail->output_offset - prev->output_offset)
2649 < stub_group_size))
2650 {
2651 tail = prev;
2652 prev = PREV_SEC (tail);
83c81bfe 2653 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2654 }
25f72752
AM
2655 }
2656 tail = prev;
2657 }
2658 }
b4655ea9
AM
2659 while (list-- != htab->input_list);
2660 free (htab->input_list);
1badb539 2661#undef PREV_SEC
b4655ea9
AM
2662}
2663
2664/* Read in all local syms for all input bfds, and create hash entries
2665 for export stubs if we are building a multi-subspace shared lib.
2666 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2667
2668static int
c39a58e6 2669get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2670{
2671 unsigned int bfd_indx;
2672 Elf_Internal_Sym *local_syms, **all_local_syms;
2673 int stub_changed = 0;
2674 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2675
4dfe6ac6
NC
2676 if (htab == NULL)
2677 return -1;
2678
30667bf3
AM
2679 /* We want to read in symbol extension records only once. To do this
2680 we need to read in the local symbols in parallel and save them for
2681 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2682 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2683 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2684 htab->all_local_syms = all_local_syms;
30667bf3 2685 if (all_local_syms == NULL)
b4655ea9 2686 return -1;
30667bf3
AM
2687
2688 /* Walk over all the input BFDs, swapping in local symbols.
2689 If we are creating a shared library, create hash entries for the
2690 export stubs. */
b4655ea9 2691 for (bfd_indx = 0;
30667bf3 2692 input_bfd != NULL;
25f72752 2693 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2694 {
2695 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2696
252b5132
RH
2697 /* We'll need the symbol table in a second. */
2698 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2699 if (symtab_hdr->sh_info == 0)
2700 continue;
2701
6cdc0ccc
AM
2702 /* We need an array of the local symbols attached to the input bfd. */
2703 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2704 if (local_syms == NULL)
edd21aca 2705 {
6cdc0ccc
AM
2706 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2707 symtab_hdr->sh_info, 0,
2708 NULL, NULL, NULL);
2709 /* Cache them for elf_link_input_bfd. */
2710 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2711 }
6cdc0ccc
AM
2712 if (local_syms == NULL)
2713 return -1;
edd21aca 2714
6cdc0ccc 2715 all_local_syms[bfd_indx] = local_syms;
edd21aca 2716
83c81bfe 2717 if (info->shared && htab->multi_subspace)
30667bf3 2718 {
875c0872
DA
2719 struct elf_link_hash_entry **eh_syms;
2720 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2721 unsigned int symcount;
2722
2723 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2724 - symtab_hdr->sh_info);
875c0872
DA
2725 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2726 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2727
2728 /* Look through the global syms for functions; We need to
2729 build export stubs for all globally visible functions. */
875c0872 2730 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2731 {
875c0872 2732 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2733
875c0872 2734 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2735
a63e02c7
DA
2736 while (hh->eh.root.type == bfd_link_hash_indirect
2737 || hh->eh.root.type == bfd_link_hash_warning)
2738 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2739
2740 /* At this point in the link, undefined syms have been
2741 resolved, so we need to check that the symbol was
2742 defined in this BFD. */
a63e02c7
DA
2743 if ((hh->eh.root.type == bfd_link_hash_defined
2744 || hh->eh.root.type == bfd_link_hash_defweak)
2745 && hh->eh.type == STT_FUNC
2746 && hh->eh.root.u.def.section->output_section != NULL
2747 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2748 == output_bfd)
a63e02c7
DA
2749 && hh->eh.root.u.def.section->owner == input_bfd
2750 && hh->eh.def_regular
2751 && !hh->eh.forced_local
2752 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2753 {
2754 asection *sec;
2755 const char *stub_name;
875c0872 2756 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2757
a63e02c7 2758 sec = hh->eh.root.u.def.section;
9b52905e 2759 stub_name = hh_name (hh);
a63e02c7 2760 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2761 stub_name,
b34976b6 2762 FALSE, FALSE);
875c0872 2763 if (hsh == NULL)
30667bf3 2764 {
875c0872
DA
2765 hsh = hppa_add_stub (stub_name, sec, htab);
2766 if (!hsh)
b4655ea9 2767 return -1;
30667bf3 2768
a63e02c7
DA
2769 hsh->target_value = hh->eh.root.u.def.value;
2770 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2771 hsh->stub_type = hppa_stub_export;
a63e02c7 2772 hsh->hh = hh;
30667bf3
AM
2773 stub_changed = 1;
2774 }
2775 else
2776 {
d003868e
AM
2777 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2778 input_bfd,
8f615d07 2779 stub_name);
30667bf3
AM
2780 }
2781 }
2782 }
30667bf3
AM
2783 }
2784 }
edd21aca 2785
b4655ea9
AM
2786 return stub_changed;
2787}
2788
2789/* Determine and set the size of the stub section for a final link.
2790
2791 The basic idea here is to examine all the relocations looking for
2792 PC-relative calls to a target that is unreachable with a "bl"
2793 instruction. */
2794
b34976b6 2795bfd_boolean
c39a58e6
AM
2796elf32_hppa_size_stubs
2797 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2798 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2799 asection * (*add_stub_section) (const char *, asection *),
2800 void (*layout_sections_again) (void))
b4655ea9
AM
2801{
2802 bfd_size_type stub_group_size;
b34976b6
AM
2803 bfd_boolean stubs_always_before_branch;
2804 bfd_boolean stub_changed;
b4655ea9
AM
2805 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2806
4dfe6ac6
NC
2807 if (htab == NULL)
2808 return FALSE;
2809
b4655ea9
AM
2810 /* Stash our params away. */
2811 htab->stub_bfd = stub_bfd;
2812 htab->multi_subspace = multi_subspace;
2813 htab->add_stub_section = add_stub_section;
2814 htab->layout_sections_again = layout_sections_again;
2815 stubs_always_before_branch = group_size < 0;
2816 if (group_size < 0)
2817 stub_group_size = -group_size;
2818 else
2819 stub_group_size = group_size;
2820 if (stub_group_size == 1)
2821 {
2822 /* Default values. */
acc990f2
AM
2823 if (stubs_always_before_branch)
2824 {
2825 stub_group_size = 7680000;
2826 if (htab->has_17bit_branch || htab->multi_subspace)
2827 stub_group_size = 240000;
2828 if (htab->has_12bit_branch)
2829 stub_group_size = 7500;
2830 }
2831 else
2832 {
2833 stub_group_size = 6971392;
2834 if (htab->has_17bit_branch || htab->multi_subspace)
2835 stub_group_size = 217856;
2836 if (htab->has_12bit_branch)
2837 stub_group_size = 6808;
2838 }
b4655ea9
AM
2839 }
2840
2841 group_sections (htab, stub_group_size, stubs_always_before_branch);
2842
2843 switch (get_local_syms (output_bfd, info->input_bfds, info))
2844 {
2845 default:
2846 if (htab->all_local_syms)
2847 goto error_ret_free_local;
b34976b6 2848 return FALSE;
b4655ea9
AM
2849
2850 case 0:
b34976b6 2851 stub_changed = FALSE;
b4655ea9
AM
2852 break;
2853
2854 case 1:
b34976b6 2855 stub_changed = TRUE;
b4655ea9
AM
2856 break;
2857 }
2858
edd21aca
AM
2859 while (1)
2860 {
b4655ea9
AM
2861 bfd *input_bfd;
2862 unsigned int bfd_indx;
30667bf3
AM
2863 asection *stub_sec;
2864
25f72752 2865 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2866 input_bfd != NULL;
25f72752 2867 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2868 {
2869 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2870 asection *section;
2871 Elf_Internal_Sym *local_syms;
30667bf3
AM
2872
2873 /* We'll need the symbol table in a second. */
2874 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2875 if (symtab_hdr->sh_info == 0)
2876 continue;
2877
b4655ea9 2878 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2879
2880 /* Walk over each section attached to the input bfd. */
2881 for (section = input_bfd->sections;
2882 section != NULL;
25f72752 2883 section = section->next)
30667bf3 2884 {
30667bf3
AM
2885 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2886
2887 /* If there aren't any relocs, then there's nothing more
2888 to do. */
2889 if ((section->flags & SEC_RELOC) == 0
2890 || section->reloc_count == 0)
2891 continue;
2892
25f72752
AM
2893 /* If this section is a link-once section that will be
2894 discarded, then don't create any stubs. */
2895 if (section->output_section == NULL
2896 || section->output_section->owner != output_bfd)
2897 continue;
2898
1e2f5b6e
AM
2899 /* Get the relocs. */
2900 internal_relocs
c39a58e6 2901 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2902 info->keep_memory);
30667bf3 2903 if (internal_relocs == NULL)
1e2f5b6e 2904 goto error_ret_free_local;
30667bf3
AM
2905
2906 /* Now examine each relocation. */
2907 irela = internal_relocs;
2908 irelaend = irela + section->reloc_count;
2909 for (; irela < irelaend; irela++)
2910 {
2911 unsigned int r_type, r_indx;
2912 enum elf32_hppa_stub_type stub_type;
875c0872 2913 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2914 asection *sym_sec;
2915 bfd_vma sym_value;
2916 bfd_vma destination;
875c0872 2917 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2918 char *stub_name;
25f72752 2919 const asection *id_sec;
30667bf3
AM
2920
2921 r_type = ELF32_R_TYPE (irela->r_info);
2922 r_indx = ELF32_R_SYM (irela->r_info);
2923
2924 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2925 {
2926 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2927 error_ret_free_internal:
2928 if (elf_section_data (section)->relocs == NULL)
2929 free (internal_relocs);
2930 goto error_ret_free_local;
30667bf3
AM
2931 }
2932
2933 /* Only look for stubs on call instructions. */
2934 if (r_type != (unsigned int) R_PARISC_PCREL12F
2935 && r_type != (unsigned int) R_PARISC_PCREL17F
2936 && r_type != (unsigned int) R_PARISC_PCREL22F)
2937 continue;
2938
2939 /* Now determine the call target, its name, value,
2940 section. */
2941 sym_sec = NULL;
2942 sym_value = 0;
2943 destination = 0;
875c0872 2944 hh = NULL;
30667bf3
AM
2945 if (r_indx < symtab_hdr->sh_info)
2946 {
2947 /* It's a local symbol. */
2948 Elf_Internal_Sym *sym;
2949 Elf_Internal_Shdr *hdr;
4fbb74a6 2950 unsigned int shndx;
30667bf3
AM
2951
2952 sym = local_syms + r_indx;
30667bf3
AM
2953 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2954 sym_value = sym->st_value;
4fbb74a6
AM
2955 shndx = sym->st_shndx;
2956 if (shndx < elf_numsections (input_bfd))
2957 {
2958 hdr = elf_elfsections (input_bfd)[shndx];
2959 sym_sec = hdr->bfd_section;
2960 destination = (sym_value + irela->r_addend
2961 + sym_sec->output_offset
2962 + sym_sec->output_section->vma);
2963 }
30667bf3
AM
2964 }
2965 else
2966 {
2967 /* It's an external symbol. */
2968 int e_indx;
2969
2970 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2971 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2972
a63e02c7
DA
2973 while (hh->eh.root.type == bfd_link_hash_indirect
2974 || hh->eh.root.type == bfd_link_hash_warning)
2975 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2976
a63e02c7
DA
2977 if (hh->eh.root.type == bfd_link_hash_defined
2978 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2979 {
a63e02c7
DA
2980 sym_sec = hh->eh.root.u.def.section;
2981 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2982 if (sym_sec->output_section != NULL)
2983 destination = (sym_value + irela->r_addend
2984 + sym_sec->output_offset
2985 + sym_sec->output_section->vma);
2986 }
a63e02c7 2987 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
2988 {
2989 if (! info->shared)
2990 continue;
2991 }
a63e02c7 2992 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2993 {
59c2e50f 2994 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2995 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2996 == STV_DEFAULT)
a63e02c7 2997 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
2998 continue;
2999 }
30667bf3
AM
3000 else
3001 {
3002 bfd_set_error (bfd_error_bad_value);
3003 goto error_ret_free_internal;
3004 }
3005 }
3006
3007 /* Determine what (if any) linker stub is needed. */
875c0872 3008 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3009 destination, info);
30667bf3
AM
3010 if (stub_type == hppa_stub_none)
3011 continue;
3012
25f72752 3013 /* Support for grouping stub sections. */
83c81bfe 3014 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3015
30667bf3 3016 /* Get the name of this stub. */
875c0872 3017 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3018 if (!stub_name)
3019 goto error_ret_free_internal;
3020
a63e02c7 3021 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3022 stub_name,
b34976b6 3023 FALSE, FALSE);
875c0872 3024 if (hsh != NULL)
30667bf3
AM
3025 {
3026 /* The proper stub has already been created. */
3027 free (stub_name);
3028 continue;
3029 }
3030
875c0872
DA
3031 hsh = hppa_add_stub (stub_name, section, htab);
3032 if (hsh == NULL)
30667bf3
AM
3033 {
3034 free (stub_name);
1e2f5b6e 3035 goto error_ret_free_internal;
30667bf3
AM
3036 }
3037
875c0872
DA
3038 hsh->target_value = sym_value;
3039 hsh->target_section = sym_sec;
3040 hsh->stub_type = stub_type;
30667bf3
AM
3041 if (info->shared)
3042 {
3043 if (stub_type == hppa_stub_import)
875c0872 3044 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3045 else if (stub_type == hppa_stub_long_branch)
875c0872 3046 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3047 }
a63e02c7 3048 hsh->hh = hh;
b34976b6 3049 stub_changed = TRUE;
30667bf3
AM
3050 }
3051
3052 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3053 if (elf_section_data (section)->relocs == NULL)
3054 free (internal_relocs);
30667bf3
AM
3055 }
3056 }
3057
3058 if (!stub_changed)
3059 break;
3060
3061 /* OK, we've added some stubs. Find out the new size of the
3062 stub sections. */
83c81bfe 3063 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3064 stub_sec != NULL;
3065 stub_sec = stub_sec->next)
eea6121a 3066 stub_sec->size = 0;
74d1c347 3067
a63e02c7 3068 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3069
30667bf3 3070 /* Ask the linker to do its stuff. */
83c81bfe 3071 (*htab->layout_sections_again) ();
b34976b6 3072 stub_changed = FALSE;
30667bf3
AM
3073 }
3074
6cdc0ccc 3075 free (htab->all_local_syms);
b34976b6 3076 return TRUE;
30667bf3
AM
3077
3078 error_ret_free_local:
b4655ea9 3079 free (htab->all_local_syms);
b34976b6 3080 return FALSE;
30667bf3
AM
3081}
3082
30667bf3
AM
3083/* For a final link, this function is called after we have sized the
3084 stubs to provide a value for __gp. */
3085
b34976b6 3086bfd_boolean
c39a58e6 3087elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3088{
b4655ea9
AM
3089 struct bfd_link_hash_entry *h;
3090 asection *sec = NULL;
3091 bfd_vma gp_val = 0;
83c81bfe 3092 struct elf32_hppa_link_hash_table *htab;
30667bf3 3093
83c81bfe 3094 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3095 if (htab == NULL)
3096 return FALSE;
3097
a63e02c7 3098 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3099
df8634e3 3100 if (h != NULL
b4655ea9
AM
3101 && (h->type == bfd_link_hash_defined
3102 || h->type == bfd_link_hash_defweak))
30667bf3 3103 {
b4655ea9
AM
3104 gp_val = h->u.def.value;
3105 sec = h->u.def.section;
30667bf3
AM
3106 }
3107 else
3108 {
0eddce27
AM
3109 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3110 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3111
74d1c347
AM
3112 /* Choose to point our LTP at, in this order, one of .plt, .got,
3113 or .data, if these sections exist. In the case of choosing
3114 .plt try to make the LTP ideal for addressing anywhere in the
3115 .plt or .got with a 14 bit signed offset. Typically, the end
3116 of the .plt is the start of the .got, so choose .plt + 0x2000
3117 if either the .plt or .got is larger than 0x2000. If both
3118 the .plt and .got are smaller than 0x2000, choose the end of
3119 the .plt section. */
225247f0
JT
3120 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3121 ? NULL : splt;
74d1c347 3122 if (sec != NULL)
30667bf3 3123 {
eea6121a
AM
3124 gp_val = sec->size;
3125 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3126 {
3127 gp_val = 0x2000;
3128 }
3129 }
3130 else
3131 {
b4655ea9 3132 sec = sgot;
74d1c347
AM
3133 if (sec != NULL)
3134 {
225247f0
JT
3135 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3136 {
3137 /* We know we don't have a .plt. If .got is large,
3138 offset our LTP. */
3139 if (sec->size > 0x2000)
3140 gp_val = 0x2000;
3141 }
74d1c347
AM
3142 }
3143 else
3144 {
3145 /* No .plt or .got. Who cares what the LTP is? */
3146 sec = bfd_get_section_by_name (abfd, ".data");
3147 }
30667bf3 3148 }
df8634e3
AM
3149
3150 if (h != NULL)
3151 {
b4655ea9
AM
3152 h->type = bfd_link_hash_defined;
3153 h->u.def.value = gp_val;
df8634e3 3154 if (sec != NULL)
b4655ea9 3155 h->u.def.section = sec;
df8634e3 3156 else
b4655ea9 3157 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3158 }
30667bf3
AM
3159 }
3160
b32b5d6e 3161 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3162 gp_val += sec->output_section->vma + sec->output_offset;
3163
3164 elf_gp (abfd) = gp_val;
b34976b6 3165 return TRUE;
30667bf3
AM
3166}
3167
30667bf3
AM
3168/* Build all the stubs associated with the current output file. The
3169 stubs are kept in a hash table attached to the main linker hash
3170 table. We also set up the .plt entries for statically linked PIC
3171 functions here. This function is called via hppaelf_finish in the
3172 linker. */
3173
b34976b6 3174bfd_boolean
c39a58e6 3175elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3176{
3177 asection *stub_sec;
3178 struct bfd_hash_table *table;
83c81bfe 3179 struct elf32_hppa_link_hash_table *htab;
30667bf3 3180
83c81bfe 3181 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3182 if (htab == NULL)
3183 return FALSE;
30667bf3 3184
83c81bfe 3185 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3186 stub_sec != NULL;
3187 stub_sec = stub_sec->next)
3188 {
dc810e39 3189 bfd_size_type size;
30667bf3
AM
3190
3191 /* Allocate memory to hold the linker stubs. */
eea6121a 3192 size = stub_sec->size;
c39a58e6 3193 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3194 if (stub_sec->contents == NULL && size != 0)
b34976b6 3195 return FALSE;
eea6121a 3196 stub_sec->size = 0;
30667bf3
AM
3197 }
3198
3199 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3200 table = &htab->bstab;
30667bf3
AM
3201 bfd_hash_traverse (table, hppa_build_one_stub, info);
3202
b34976b6 3203 return TRUE;
30667bf3
AM
3204}
3205
9b52905e 3206/* Return the base vma address which should be subtracted from the real
68ffbac6 3207 address when resolving a dtpoff relocation.
9b52905e
NC
3208 This is PT_TLS segment p_vaddr. */
3209
3210static bfd_vma
3211dtpoff_base (struct bfd_link_info *info)
3212{
3213 /* If tls_sec is NULL, we should have signalled an error already. */
3214 if (elf_hash_table (info)->tls_sec == NULL)
3215 return 0;
3216 return elf_hash_table (info)->tls_sec->vma;
3217}
3218
3219/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3220
3221static bfd_vma
3222tpoff (struct bfd_link_info *info, bfd_vma address)
3223{
3224 struct elf_link_hash_table *htab = elf_hash_table (info);
3225
3226 /* If tls_sec is NULL, we should have signalled an error already. */
3227 if (htab->tls_sec == NULL)
3228 return 0;
68ffbac6 3229 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3230 tcbhead structure which has 2 pointer fields. */
68ffbac6 3231 return (address - htab->tls_sec->vma
9b52905e
NC
3232 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3233}
3234
c46b7515
AM
3235/* Perform a final link. */
3236
b34976b6 3237static bfd_boolean
c39a58e6 3238elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3239{
4dc86686 3240 /* Invoke the regular ELF linker to do all the work. */
c152c796 3241 if (!bfd_elf_final_link (abfd, info))
b34976b6 3242 return FALSE;
c46b7515
AM
3243
3244 /* If we're producing a final executable, sort the contents of the
985142a4 3245 unwind section. */
d9f40817
DA
3246 if (info->relocatable)
3247 return TRUE;
3248
46fe4e66 3249 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3250}
3251
3252/* Record the lowest address for the data and text segments. */
3253
3254static void
2ea37f1c 3255hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3256{
83c81bfe 3257 struct elf32_hppa_link_hash_table *htab;
c46b7515 3258
875c0872 3259 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3260 if (htab == NULL)
3261 return;
c46b7515
AM
3262
3263 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3264 {
2ea37f1c
NC
3265 bfd_vma value;
3266 Elf_Internal_Phdr *p;
3267
3268 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3269 BFD_ASSERT (p != NULL);
3270 value = p->p_vaddr;
c46b7515
AM
3271
3272 if ((section->flags & SEC_READONLY) != 0)
3273 {
83c81bfe
AM
3274 if (value < htab->text_segment_base)
3275 htab->text_segment_base = value;
c46b7515
AM
3276 }
3277 else
3278 {
83c81bfe
AM
3279 if (value < htab->data_segment_base)
3280 htab->data_segment_base = value;
c46b7515
AM
3281 }
3282 }
3283}
3284
30667bf3
AM
3285/* Perform a relocation as part of a final link. */
3286
3287static bfd_reloc_status_type
c39a58e6
AM
3288final_link_relocate (asection *input_section,
3289 bfd_byte *contents,
875c0872 3290 const Elf_Internal_Rela *rela,
c39a58e6
AM
3291 bfd_vma value,
3292 struct elf32_hppa_link_hash_table *htab,
3293 asection *sym_sec,
875c0872 3294 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3295 struct bfd_link_info *info)
30667bf3
AM
3296{
3297 int insn;
875c0872 3298 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3299 unsigned int orig_r_type = r_type;
30667bf3
AM
3300 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3301 int r_format = howto->bitsize;
3302 enum hppa_reloc_field_selector_type_alt r_field;
3303 bfd *input_bfd = input_section->owner;
875c0872 3304 bfd_vma offset = rela->r_offset;
30667bf3
AM
3305 bfd_vma max_branch_offset = 0;
3306 bfd_byte *hit_data = contents + offset;
875c0872 3307 bfd_signed_vma addend = rela->r_addend;
30667bf3 3308 bfd_vma location;
875c0872 3309 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3310 int val;
30667bf3
AM
3311
3312 if (r_type == R_PARISC_NONE)
3313 return bfd_reloc_ok;
3314
3315 insn = bfd_get_32 (input_bfd, hit_data);
3316
3317 /* Find out where we are and where we're going. */
3318 location = (offset +
3319 input_section->output_offset +
3320 input_section->output_section->vma);
3321
a252afa4
DA
3322 /* If we are not building a shared library, convert DLTIND relocs to
3323 DPREL relocs. */
3324 if (!info->shared)
3325 {
3326 switch (r_type)
4fc8051d
AM
3327 {
3328 case R_PARISC_DLTIND21L:
143bb599
DA
3329 case R_PARISC_TLS_GD21L:
3330 case R_PARISC_TLS_LDM21L:
3331 case R_PARISC_TLS_IE21L:
4fc8051d 3332 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3333 break;
3334
4fc8051d 3335 case R_PARISC_DLTIND14R:
143bb599
DA
3336 case R_PARISC_TLS_GD14R:
3337 case R_PARISC_TLS_LDM14R:
3338 case R_PARISC_TLS_IE14R:
4fc8051d 3339 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3340 break;
3341
4fc8051d
AM
3342 case R_PARISC_DLTIND14F:
3343 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3344 break;
3345 }
3346 }
3347
30667bf3
AM
3348 switch (r_type)
3349 {
3350 case R_PARISC_PCREL12F:
3351 case R_PARISC_PCREL17F:
3352 case R_PARISC_PCREL22F:
067fa4a6
AM
3353 /* If this call should go via the plt, find the import stub in
3354 the stub hash. */
30667bf3
AM
3355 if (sym_sec == NULL
3356 || sym_sec->output_section == NULL
875c0872 3357 || (hh != NULL
a63e02c7
DA
3358 && hh->eh.plt.offset != (bfd_vma) -1
3359 && hh->eh.dynindx != -1
875c0872 3360 && !hh->plabel
a252afa4 3361 && (info->shared
a63e02c7
DA
3362 || !hh->eh.def_regular
3363 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3364 {
875c0872
DA
3365 hsh = hppa_get_stub_entry (input_section, sym_sec,
3366 hh, rela, htab);
3367 if (hsh != NULL)
30667bf3 3368 {
875c0872
DA
3369 value = (hsh->stub_offset
3370 + hsh->stub_sec->output_offset
3371 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3372 addend = 0;
3373 }
875c0872 3374 else if (sym_sec == NULL && hh != NULL
a63e02c7 3375 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3376 {
db20fd76
AM
3377 /* It's OK if undefined weak. Calls to undefined weak
3378 symbols behave as if the "called" function
3379 immediately returns. We can thus call to a weak
3380 function without first checking whether the function
3381 is defined. */
30667bf3 3382 value = location;
db20fd76 3383 addend = 8;
30667bf3
AM
3384 }
3385 else
f09ebc7d 3386 return bfd_reloc_undefined;
30667bf3
AM
3387 }
3388 /* Fall thru. */
3389
3390 case R_PARISC_PCREL21L:
3391 case R_PARISC_PCREL17C:
3392 case R_PARISC_PCREL17R:
3393 case R_PARISC_PCREL14R:
3394 case R_PARISC_PCREL14F:
36751eee 3395 case R_PARISC_PCREL32:
30667bf3
AM
3396 /* Make it a pc relative offset. */
3397 value -= location;
3398 addend -= 8;
3399 break;
3400
3401 case R_PARISC_DPREL21L:
3402 case R_PARISC_DPREL14R:
3403 case R_PARISC_DPREL14F:
a252afa4
DA
3404 /* Convert instructions that use the linkage table pointer (r19) to
3405 instructions that use the global data pointer (dp). This is the
3406 most efficient way of using PIC code in an incomplete executable,
3407 but the user must follow the standard runtime conventions for
3408 accessing data for this to work. */
143bb599 3409 if (orig_r_type != r_type)
a252afa4 3410 {
143bb599
DA
3411 if (r_type == R_PARISC_DPREL21L)
3412 {
3413 /* GCC sometimes uses a register other than r19 for the
3414 operation, so we must convert any addil instruction
3415 that uses this relocation. */
3416 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3417 insn = ADDIL_DP;
3418 else
3419 /* We must have a ldil instruction. It's too hard to find
3420 and convert the associated add instruction, so issue an
3421 error. */
3422 (*_bfd_error_handler)
3423 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3424 input_bfd,
3425 input_section,
3426 (long) offset,
3427 howto->name,
3428 insn);
3429 }
3430 else if (r_type == R_PARISC_DPREL14F)
3431 {
3432 /* This must be a format 1 load/store. Change the base
3433 register to dp. */
3434 insn = (insn & 0xfc1ffff) | (27 << 21);
3435 }
a252afa4
DA
3436 }
3437
143bb599
DA
3438 /* For all the DP relative relocations, we need to examine the symbol's
3439 section. If it has no section or if it's a code section, then
3440 "data pointer relative" makes no sense. In that case we don't
3441 adjust the "value", and for 21 bit addil instructions, we change the
3442 source addend register from %dp to %r0. This situation commonly
3443 arises for undefined weak symbols and when a variable's "constness"
3444 is declared differently from the way the variable is defined. For
3445 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3446 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3447 {
3448 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3449 == (((int) OP_ADDIL << 26) | (27 << 21)))
3450 {
3451 insn &= ~ (0x1f << 21);
30667bf3
AM
3452 }
3453 /* Now try to make things easy for the dynamic linker. */
3454
3455 break;
3456 }
74d1c347 3457 /* Fall thru. */
30667bf3
AM
3458
3459 case R_PARISC_DLTIND21L:
3460 case R_PARISC_DLTIND14R:
3461 case R_PARISC_DLTIND14F:
143bb599
DA
3462 case R_PARISC_TLS_GD21L:
3463 case R_PARISC_TLS_LDM21L:
3464 case R_PARISC_TLS_IE21L:
9b52905e 3465 case R_PARISC_TLS_GD14R:
9b52905e 3466 case R_PARISC_TLS_LDM14R:
9b52905e 3467 case R_PARISC_TLS_IE14R:
30667bf3
AM
3468 value -= elf_gp (input_section->output_section->owner);
3469 break;
3470
c46b7515
AM
3471 case R_PARISC_SEGREL32:
3472 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3473 value -= htab->text_segment_base;
c46b7515 3474 else
83c81bfe 3475 value -= htab->data_segment_base;
c46b7515
AM
3476 break;
3477
30667bf3
AM
3478 default:
3479 break;
3480 }
3481
3482 switch (r_type)
3483 {
3484 case R_PARISC_DIR32:
47d89dba 3485 case R_PARISC_DIR14F:
30667bf3
AM
3486 case R_PARISC_DIR17F:
3487 case R_PARISC_PCREL17C:
3488 case R_PARISC_PCREL14F:
36751eee 3489 case R_PARISC_PCREL32:
30667bf3
AM
3490 case R_PARISC_DPREL14F:
3491 case R_PARISC_PLABEL32:
3492 case R_PARISC_DLTIND14F:
3493 case R_PARISC_SEGBASE:
3494 case R_PARISC_SEGREL32:
9b52905e
NC
3495 case R_PARISC_TLS_DTPMOD32:
3496 case R_PARISC_TLS_DTPOFF32:
3497 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3498 r_field = e_fsel;
3499 break;
3500
1bf42538 3501 case R_PARISC_DLTIND21L:
30667bf3 3502 case R_PARISC_PCREL21L:
30667bf3 3503 case R_PARISC_PLABEL21L:
1bf42538
JL
3504 r_field = e_lsel;
3505 break;
3506
3507 case R_PARISC_DIR21L:
3508 case R_PARISC_DPREL21L:
9b52905e
NC
3509 case R_PARISC_TLS_GD21L:
3510 case R_PARISC_TLS_LDM21L:
3511 case R_PARISC_TLS_LDO21L:
3512 case R_PARISC_TLS_IE21L:
3513 case R_PARISC_TLS_LE21L:
30667bf3
AM
3514 r_field = e_lrsel;
3515 break;
3516
30667bf3 3517 case R_PARISC_PCREL17R:
30667bf3 3518 case R_PARISC_PCREL14R:
30667bf3
AM
3519 case R_PARISC_PLABEL14R:
3520 case R_PARISC_DLTIND14R:
1bf42538
JL
3521 r_field = e_rsel;
3522 break;
3523
3524 case R_PARISC_DIR17R:
3525 case R_PARISC_DIR14R:
3526 case R_PARISC_DPREL14R:
9b52905e
NC
3527 case R_PARISC_TLS_GD14R:
3528 case R_PARISC_TLS_LDM14R:
3529 case R_PARISC_TLS_LDO14R:
3530 case R_PARISC_TLS_IE14R:
3531 case R_PARISC_TLS_LE14R:
30667bf3
AM
3532 r_field = e_rrsel;
3533 break;
3534
3535 case R_PARISC_PCREL12F:
3536 case R_PARISC_PCREL17F:
3537 case R_PARISC_PCREL22F:
3538 r_field = e_fsel;
3539
3540 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3541 {
3542 max_branch_offset = (1 << (17-1)) << 2;
3543 }
3544 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3545 {
3546 max_branch_offset = (1 << (12-1)) << 2;
3547 }
3548 else
3549 {
3550 max_branch_offset = (1 << (22-1)) << 2;
3551 }
3552
3553 /* sym_sec is NULL on undefined weak syms or when shared on
3554 undefined syms. We've already checked for a stub for the
3555 shared undefined case. */
3556 if (sym_sec == NULL)
3557 break;
3558
3559 /* If the branch is out of reach, then redirect the
3560 call to the local stub for this function. */
3561 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3562 {
875c0872
DA
3563 hsh = hppa_get_stub_entry (input_section, sym_sec,
3564 hh, rela, htab);
3565 if (hsh == NULL)
f09ebc7d 3566 return bfd_reloc_undefined;
30667bf3
AM
3567
3568 /* Munge up the value and addend so that we call the stub
3569 rather than the procedure directly. */
875c0872
DA
3570 value = (hsh->stub_offset
3571 + hsh->stub_sec->output_offset
3572 + hsh->stub_sec->output_section->vma
30667bf3
AM
3573 - location);
3574 addend = -8;
3575 }
3576 break;
3577
3578 /* Something we don't know how to handle. */
3579 default:
3580 return bfd_reloc_notsupported;
3581 }
3582
3583 /* Make sure we can reach the stub. */
3584 if (max_branch_offset != 0
3585 && value + addend + max_branch_offset >= 2*max_branch_offset)
3586 {
3587 (*_bfd_error_handler)
d003868e
AM
3588 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3589 input_bfd,
3590 input_section,
d1fa68d3 3591 (long) offset,
a63e02c7 3592 hsh->bh_root.string);
ce757d15 3593 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3594 return bfd_reloc_notsupported;
3595 }
3596
3597 val = hppa_field_adjust (value, addend, r_field);
3598
3599 switch (r_type)
3600 {
3601 case R_PARISC_PCREL12F:
3602 case R_PARISC_PCREL17C:
3603 case R_PARISC_PCREL17F:
3604 case R_PARISC_PCREL17R:
3605 case R_PARISC_PCREL22F:
3606 case R_PARISC_DIR17F:
3607 case R_PARISC_DIR17R:
3608 /* This is a branch. Divide the offset by four.
3609 Note that we need to decide whether it's a branch or
3610 otherwise by inspecting the reloc. Inspecting insn won't
3611 work as insn might be from a .word directive. */
3612 val >>= 2;
3613 break;
3614
3615 default:
3616 break;
3617 }
3618
3619 insn = hppa_rebuild_insn (insn, val, r_format);
3620
3621 /* Update the instruction word. */
74d1c347 3622 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3623 return bfd_reloc_ok;
3624}
3625
30667bf3
AM
3626/* Relocate an HPPA ELF section. */
3627
b34976b6 3628static bfd_boolean
c39a58e6
AM
3629elf32_hppa_relocate_section (bfd *output_bfd,
3630 struct bfd_link_info *info,
3631 bfd *input_bfd,
3632 asection *input_section,
3633 bfd_byte *contents,
3634 Elf_Internal_Rela *relocs,
3635 Elf_Internal_Sym *local_syms,
3636 asection **local_sections)
30667bf3 3637{
30667bf3 3638 bfd_vma *local_got_offsets;
83c81bfe 3639 struct elf32_hppa_link_hash_table *htab;
30667bf3 3640 Elf_Internal_Shdr *symtab_hdr;
875c0872 3641 Elf_Internal_Rela *rela;
30667bf3 3642 Elf_Internal_Rela *relend;
30667bf3
AM
3643
3644 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3645
83c81bfe 3646 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3647 if (htab == NULL)
3648 return FALSE;
3649
74d1c347 3650 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3651
875c0872 3652 rela = relocs;
30667bf3 3653 relend = relocs + input_section->reloc_count;
875c0872 3654 for (; rela < relend; rela++)
30667bf3
AM
3655 {
3656 unsigned int r_type;
3657 reloc_howto_type *howto;
3658 unsigned int r_symndx;
875c0872 3659 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3660 Elf_Internal_Sym *sym;
3661 asection *sym_sec;
3662 bfd_vma relocation;
875c0872 3663 bfd_reloc_status_type rstatus;
30667bf3 3664 const char *sym_name;
b34976b6
AM
3665 bfd_boolean plabel;
3666 bfd_boolean warned_undef;
30667bf3 3667
875c0872 3668 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3669 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3670 {
3671 bfd_set_error (bfd_error_bad_value);
b34976b6 3672 return FALSE;
30667bf3
AM
3673 }
3674 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3675 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3676 continue;
3677
875c0872
DA
3678 r_symndx = ELF32_R_SYM (rela->r_info);
3679 hh = NULL;
30667bf3
AM
3680 sym = NULL;
3681 sym_sec = NULL;
b34976b6 3682 warned_undef = FALSE;
30667bf3
AM
3683 if (r_symndx < symtab_hdr->sh_info)
3684 {
3685 /* This is a local symbol, h defaults to NULL. */
3686 sym = local_syms + r_symndx;
3687 sym_sec = local_sections[r_symndx];
875c0872 3688 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3689 }
3690 else
3691 {
875c0872 3692 struct elf_link_hash_entry *eh;
62d887d4 3693 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3694 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3695
875c0872 3696 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3697 r_symndx, symtab_hdr, sym_hashes,
875c0872 3698 eh, sym_sec, relocation,
62d887d4
L
3699 unresolved_reloc, warned_undef,
3700 ignored);
560e09e9 3701
ab96bf03
AM
3702 if (!info->relocatable
3703 && relocation == 0
875c0872
DA
3704 && eh->root.type != bfd_link_hash_defined
3705 && eh->root.type != bfd_link_hash_defweak
3706 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3707 {
59c2e50f 3708 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3709 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3710 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3711 {
3712 if (! info->callbacks->undefined_symbol
9b52905e 3713 (info, eh_name (eh), input_bfd,
875c0872 3714 input_section, rela->r_offset, FALSE))
560e09e9
NC
3715 return FALSE;
3716 warned_undef = TRUE;
3717 }
30667bf3 3718 }
875c0872 3719 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3720 }
3721
dbaa2011 3722 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3723 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3724 rela, 1, relend,
3725 elf_hppa_howto_table + r_type, 0,
e4067dbb 3726 contents);
ab96bf03
AM
3727
3728 if (info->relocatable)
3729 continue;
3730
30667bf3 3731 /* Do any required modifications to the relocation value, and
25f72752
AM
3732 determine what types of dynamic info we need to output, if
3733 any. */
74d1c347 3734 plabel = 0;
30667bf3
AM
3735 switch (r_type)
3736 {
3737 case R_PARISC_DLTIND14F:
3738 case R_PARISC_DLTIND14R:
3739 case R_PARISC_DLTIND21L:
ce757d15
AM
3740 {
3741 bfd_vma off;
b34976b6 3742 bfd_boolean do_got = 0;
ce757d15
AM
3743
3744 /* Relocation is to the entry for this symbol in the
3745 global offset table. */
875c0872 3746 if (hh != NULL)
ce757d15 3747 {
b34976b6 3748 bfd_boolean dyn;
ce757d15 3749
a63e02c7
DA
3750 off = hh->eh.got.offset;
3751 dyn = htab->etab.dynamic_sections_created;
c152c796 3752 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3753 &hh->eh))
ce757d15
AM
3754 {
3755 /* If we aren't going to call finish_dynamic_symbol,
3756 then we need to handle initialisation of the .got
3757 entry and create needed relocs here. Since the
3758 offset must always be a multiple of 4, we use the
3759 least significant bit to record whether we have
3760 initialised it already. */
3761 if ((off & 1) != 0)
3762 off &= ~1;
3763 else
3764 {
a63e02c7 3765 hh->eh.got.offset |= 1;
ce757d15
AM
3766 do_got = 1;
3767 }
3768 }
3769 }
3770 else
3771 {
3772 /* Local symbol case. */
3773 if (local_got_offsets == NULL)
3774 abort ();
3775
3776 off = local_got_offsets[r_symndx];
3777
3778 /* The offset must always be a multiple of 4. We use
3779 the least significant bit to record whether we have
3780 already generated the necessary reloc. */
3781 if ((off & 1) != 0)
3782 off &= ~1;
3783 else
3784 {
3785 local_got_offsets[r_symndx] |= 1;
3786 do_got = 1;
3787 }
3788 }
68fb2e56 3789
ce757d15
AM
3790 if (do_got)
3791 {
3792 if (info->shared)
3793 {
3794 /* Output a dynamic relocation for this GOT entry.
3795 In this case it is relative to the base of the
3796 object because the symbol index is zero. */
3797 Elf_Internal_Rela outrel;
947216bf 3798 bfd_byte *loc;
875c0872 3799 asection *sec = htab->srelgot;
ce757d15
AM
3800
3801 outrel.r_offset = (off
3802 + htab->sgot->output_offset
3803 + htab->sgot->output_section->vma);
3804 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3805 outrel.r_addend = relocation;
875c0872
DA
3806 loc = sec->contents;
3807 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3808 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3809 }
3810 else
30667bf3 3811 bfd_put_32 (output_bfd, relocation,
83c81bfe 3812 htab->sgot->contents + off);
ce757d15 3813 }
30667bf3 3814
ce757d15
AM
3815 if (off >= (bfd_vma) -2)
3816 abort ();
30667bf3 3817
ce757d15
AM
3818 /* Add the base of the GOT to the relocation value. */
3819 relocation = (off
3820 + htab->sgot->output_offset
3821 + htab->sgot->output_section->vma);
3822 }
30667bf3 3823 break;
252b5132 3824
c46b7515
AM
3825 case R_PARISC_SEGREL32:
3826 /* If this is the first SEGREL relocation, then initialize
3827 the segment base values. */
83c81bfe
AM
3828 if (htab->text_segment_base == (bfd_vma) -1)
3829 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3830 break;
3831
30667bf3
AM
3832 case R_PARISC_PLABEL14R:
3833 case R_PARISC_PLABEL21L:
3834 case R_PARISC_PLABEL32:
a63e02c7 3835 if (htab->etab.dynamic_sections_created)
252b5132 3836 {
ce757d15 3837 bfd_vma off;
b34976b6 3838 bfd_boolean do_plt = 0;
74d1c347
AM
3839 /* If we have a global symbol with a PLT slot, then
3840 redirect this relocation to it. */
875c0872 3841 if (hh != NULL)
74d1c347 3842 {
a63e02c7 3843 off = hh->eh.plt.offset;
c152c796 3844 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3845 &hh->eh))
8dea1268
AM
3846 {
3847 /* In a non-shared link, adjust_dynamic_symbols
3848 isn't called for symbols forced local. We
dc810e39 3849 need to write out the plt entry here. */
8dea1268
AM
3850 if ((off & 1) != 0)
3851 off &= ~1;
3852 else
3853 {
a63e02c7 3854 hh->eh.plt.offset |= 1;
ce757d15 3855 do_plt = 1;
8dea1268
AM
3856 }
3857 }
74d1c347
AM
3858 }
3859 else
3860 {
68fb2e56
AM
3861 bfd_vma *local_plt_offsets;
3862
3863 if (local_got_offsets == NULL)
3864 abort ();
74d1c347 3865
68fb2e56
AM
3866 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3867 off = local_plt_offsets[r_symndx];
74d1c347
AM
3868
3869 /* As for the local .got entry case, we use the last
3870 bit to record whether we've already initialised
3871 this local .plt entry. */
3872 if ((off & 1) != 0)
3873 off &= ~1;
ce757d15
AM
3874 else
3875 {
3876 local_plt_offsets[r_symndx] |= 1;
3877 do_plt = 1;
3878 }
3879 }
3880
3881 if (do_plt)
3882 {
3883 if (info->shared)
3884 {
3885 /* Output a dynamic IPLT relocation for this
3886 PLT entry. */
3887 Elf_Internal_Rela outrel;
947216bf
AM
3888 bfd_byte *loc;
3889 asection *s = htab->srelplt;
ce757d15
AM
3890
3891 outrel.r_offset = (off
3892 + htab->splt->output_offset
3893 + htab->splt->output_section->vma);
3894 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3895 outrel.r_addend = relocation;
947216bf
AM
3896 loc = s->contents;
3897 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3898 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3899 }
74d1c347
AM
3900 else
3901 {
3902 bfd_put_32 (output_bfd,
3903 relocation,
83c81bfe 3904 htab->splt->contents + off);
74d1c347 3905 bfd_put_32 (output_bfd,
83c81bfe
AM
3906 elf_gp (htab->splt->output_section->owner),
3907 htab->splt->contents + off + 4);
74d1c347
AM
3908 }
3909 }
3910
68fb2e56 3911 if (off >= (bfd_vma) -2)
49e9d0d3 3912 abort ();
74d1c347
AM
3913
3914 /* PLABELs contain function pointers. Relocation is to
3915 the entry for the function in the .plt. The magic +2
3916 offset signals to $$dyncall that the function pointer
3917 is in the .plt and thus has a gp pointer too.
3918 Exception: Undefined PLABELs should have a value of
3919 zero. */
875c0872 3920 if (hh == NULL
a63e02c7
DA
3921 || (hh->eh.root.type != bfd_link_hash_undefweak
3922 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3923 {
3924 relocation = (off
83c81bfe
AM
3925 + htab->splt->output_offset
3926 + htab->splt->output_section->vma
74d1c347
AM
3927 + 2);
3928 }
3929 plabel = 1;
30667bf3
AM
3930 }
3931 /* Fall through and possibly emit a dynamic relocation. */
3932
3933 case R_PARISC_DIR17F:
3934 case R_PARISC_DIR17R:
47d89dba 3935 case R_PARISC_DIR14F:
30667bf3
AM
3936 case R_PARISC_DIR14R:
3937 case R_PARISC_DIR21L:
3938 case R_PARISC_DPREL14F:
3939 case R_PARISC_DPREL14R:
3940 case R_PARISC_DPREL21L:
3941 case R_PARISC_DIR32:
b1e24c02 3942 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3943 break;
3944
30667bf3 3945 /* The reloc types handled here and this conditional
56882138 3946 expression must match the code in ..check_relocs and
ec338859 3947 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3948 as in ..check_relocs, with some extra conditions (dynindx
3949 test in this case) to cater for relocs removed by
ec338859 3950 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3951 here does indeed match the one in ..check_relocs, the
3952 difference being that here we test DEF_DYNAMIC as well as
3953 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3954 which is why we can't use just that test here.
3955 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3956 there all files have not been loaded. */
446f2863 3957 if ((info->shared
875c0872 3958 && (hh == NULL
a63e02c7
DA
3959 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3960 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3961 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3962 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3963 || (!info->shared
875c0872 3964 && hh != NULL
a63e02c7
DA
3965 && hh->eh.dynindx != -1
3966 && !hh->eh.non_got_ref
4fc8051d 3967 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3968 && hh->eh.def_dynamic
3969 && !hh->eh.def_regular)
3970 || hh->eh.root.type == bfd_link_hash_undefweak
3971 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3972 {
3973 Elf_Internal_Rela outrel;
b34976b6 3974 bfd_boolean skip;
98ceb8ce 3975 asection *sreloc;
947216bf 3976 bfd_byte *loc;
252b5132 3977
30667bf3
AM
3978 /* When generating a shared object, these relocations
3979 are copied into the output file to be resolved at run
3980 time. */
252b5132 3981
875c0872 3982 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3983 outrel.r_offset =
3984 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3985 rela->r_offset);
0bb2d96a
JJ
3986 skip = (outrel.r_offset == (bfd_vma) -1
3987 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3988 outrel.r_offset += (input_section->output_offset
3989 + input_section->output_section->vma);
68ffbac6 3990
30667bf3 3991 if (skip)
252b5132 3992 {
30667bf3 3993 memset (&outrel, 0, sizeof (outrel));
252b5132 3994 }
875c0872 3995 else if (hh != NULL
a63e02c7 3996 && hh->eh.dynindx != -1
74d1c347 3997 && (plabel
446f2863
AM
3998 || !IS_ABSOLUTE_RELOC (r_type)
3999 || !info->shared
74d1c347 4000 || !info->symbolic
a63e02c7 4001 || !hh->eh.def_regular))
252b5132 4002 {
a63e02c7 4003 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4004 }
4005 else /* It's a local symbol, or one marked to become local. */
4006 {
4007 int indx = 0;
edd21aca 4008
30667bf3
AM
4009 /* Add the absolute offset of the symbol. */
4010 outrel.r_addend += relocation;
edd21aca 4011
74d1c347
AM
4012 /* Global plabels need to be processed by the
4013 dynamic linker so that functions have at most one
4014 fptr. For this reason, we need to differentiate
4015 between global and local plabels, which we do by
4016 providing the function symbol for a global plabel
4017 reloc, and no symbol for local plabels. */
4018 if (! plabel
4019 && sym_sec != NULL
30667bf3
AM
4020 && sym_sec->output_section != NULL
4021 && ! bfd_is_abs_section (sym_sec))
252b5132 4022 {
74541ad4
AM
4023 asection *osec;
4024
4025 osec = sym_sec->output_section;
4026 indx = elf_section_data (osec)->dynindx;
4027 if (indx == 0)
4028 {
4029 osec = htab->etab.text_index_section;
4030 indx = elf_section_data (osec)->dynindx;
4031 }
4032 BFD_ASSERT (indx != 0);
4b71bec0 4033
30667bf3
AM
4034 /* We are turning this relocation into one
4035 against a section symbol, so subtract out the
4036 output section's address but not the offset
4037 of the input section in the output section. */
74541ad4 4038 outrel.r_addend -= osec->vma;
252b5132 4039 }
252b5132 4040
30667bf3
AM
4041 outrel.r_info = ELF32_R_INFO (indx, r_type);
4042 }
98ceb8ce
AM
4043 sreloc = elf_section_data (input_section)->sreloc;
4044 if (sreloc == NULL)
4045 abort ();
4046
947216bf
AM
4047 loc = sreloc->contents;
4048 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4049 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4050 }
4051 break;
68ffbac6 4052
9b52905e
NC
4053 case R_PARISC_TLS_LDM21L:
4054 case R_PARISC_TLS_LDM14R:
4055 {
4056 bfd_vma off;
68ffbac6 4057
9b52905e
NC
4058 off = htab->tls_ldm_got.offset;
4059 if (off & 1)
4060 off &= ~1;
4061 else
4062 {
4063 Elf_Internal_Rela outrel;
4064 bfd_byte *loc;
4065
68ffbac6 4066 outrel.r_offset = (off
9b52905e
NC
4067 + htab->sgot->output_section->vma
4068 + htab->sgot->output_offset);
4069 outrel.r_addend = 0;
4070 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
68ffbac6 4071 loc = htab->srelgot->contents;
9b52905e
NC
4072 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4073
4074 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4075 htab->tls_ldm_got.offset |= 1;
4076 }
4077
4078 /* Add the base of the GOT to the relocation value. */
4079 relocation = (off
4080 + htab->sgot->output_offset
4081 + htab->sgot->output_section->vma);
4082
4083 break;
4084 }
4085
4086 case R_PARISC_TLS_LDO21L:
4087 case R_PARISC_TLS_LDO14R:
4088 relocation -= dtpoff_base (info);
4089 break;
4090
4091 case R_PARISC_TLS_GD21L:
4092 case R_PARISC_TLS_GD14R:
4093 case R_PARISC_TLS_IE21L:
4094 case R_PARISC_TLS_IE14R:
4095 {
4096 bfd_vma off;
4097 int indx;
4098 char tls_type;
4099
4100 indx = 0;
4101 if (hh != NULL)
4102 {
4103 bfd_boolean dyn;
4104 dyn = htab->etab.dynamic_sections_created;
4105
4106 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4107 && (!info->shared
4108 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4109 {
4110 indx = hh->eh.dynindx;
4111 }
4112 off = hh->eh.got.offset;
4113 tls_type = hh->tls_type;
4114 }
4115 else
4116 {
4117 off = local_got_offsets[r_symndx];
4118 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4119 }
4120
4121 if (tls_type == GOT_UNKNOWN)
4122 abort ();
4123
4124 if ((off & 1) != 0)
4125 off &= ~1;
4126 else
4127 {
4128 bfd_boolean need_relocs = FALSE;
4129 Elf_Internal_Rela outrel;
4130 bfd_byte *loc = NULL;
4131 int cur_off = off;
4132
4133 /* The GOT entries have not been initialized yet. Do it
4134 now, and emit any relocations. If both an IE GOT and a
4135 GD GOT are necessary, we emit the GD first. */
4136
4137 if ((info->shared || indx != 0)
4138 && (hh == NULL
4139 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4140 || hh->eh.root.type != bfd_link_hash_undefweak))
4141 {
4142 need_relocs = TRUE;
68ffbac6 4143 loc = htab->srelgot->contents;
9b52905e
NC
4144 /* FIXME (CAO): Should this be reloc_count++ ? */
4145 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4146 }
4147
4148 if (tls_type & GOT_TLS_GD)
4149 {
4150 if (need_relocs)
4151 {
4152 outrel.r_offset = (cur_off
4153 + htab->sgot->output_section->vma
4154 + htab->sgot->output_offset);
4155 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4156 outrel.r_addend = 0;
4157 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4158 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4159 htab->srelgot->reloc_count++;
4160 loc += sizeof (Elf32_External_Rela);
4161
4162 if (indx == 0)
4163 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4164 htab->sgot->contents + cur_off + 4);
4165 else
4166 {
4167 bfd_put_32 (output_bfd, 0,
4168 htab->sgot->contents + cur_off + 4);
4169 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4170 outrel.r_offset += 4;
4171 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4172 htab->srelgot->reloc_count++;
4173 loc += sizeof (Elf32_External_Rela);
4174 }
4175 }
4176 else
4177 {
4178 /* If we are not emitting relocations for a
4179 general dynamic reference, then we must be in a
4180 static link or an executable link with the
4181 symbol binding locally. Mark it as belonging
4182 to module 1, the executable. */
4183 bfd_put_32 (output_bfd, 1,
4184 htab->sgot->contents + cur_off);
4185 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4186 htab->sgot->contents + cur_off + 4);
4187 }
4188
4189
4190 cur_off += 8;
4191 }
4192
4193 if (tls_type & GOT_TLS_IE)
4194 {
4195 if (need_relocs)
4196 {
4197 outrel.r_offset = (cur_off
4198 + htab->sgot->output_section->vma
4199 + htab->sgot->output_offset);
4200 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4201
4202 if (indx == 0)
4203 outrel.r_addend = relocation - dtpoff_base (info);
4204 else
4205 outrel.r_addend = 0;
4206
4207 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4208 htab->srelgot->reloc_count++;
4209 loc += sizeof (Elf32_External_Rela);
4210 }
4211 else
4212 bfd_put_32 (output_bfd, tpoff (info, relocation),
4213 htab->sgot->contents + cur_off);
4214
4215 cur_off += 4;
4216 }
4217
4218 if (hh != NULL)
4219 hh->eh.got.offset |= 1;
4220 else
4221 local_got_offsets[r_symndx] |= 1;
4222 }
4223
4224 if ((tls_type & GOT_TLS_GD)
4225 && r_type != R_PARISC_TLS_GD21L
4226 && r_type != R_PARISC_TLS_GD14R)
4227 off += 2 * GOT_ENTRY_SIZE;
4228
4229 /* Add the base of the GOT to the relocation value. */
4230 relocation = (off
4231 + htab->sgot->output_offset
4232 + htab->sgot->output_section->vma);
4233
4234 break;
4235 }
4236
4237 case R_PARISC_TLS_LE21L:
4238 case R_PARISC_TLS_LE14R:
4239 {
4240 relocation = tpoff (info, relocation);
4241 break;
4242 }
4243 break;
edd21aca 4244
30667bf3
AM
4245 default:
4246 break;
4247 }
252b5132 4248
875c0872
DA
4249 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4250 htab, sym_sec, hh, info);
252b5132 4251
875c0872 4252 if (rstatus == bfd_reloc_ok)
30667bf3 4253 continue;
252b5132 4254
875c0872 4255 if (hh != NULL)
9b52905e 4256 sym_name = hh_name (hh);
30667bf3
AM
4257 else
4258 {
4259 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4260 symtab_hdr->sh_link,
4261 sym->st_name);
4262 if (sym_name == NULL)
b34976b6 4263 return FALSE;
30667bf3
AM
4264 if (*sym_name == '\0')
4265 sym_name = bfd_section_name (input_bfd, sym_sec);
4266 }
edd21aca 4267
30667bf3 4268 howto = elf_hppa_howto_table + r_type;
252b5132 4269
875c0872 4270 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4271 {
875c0872 4272 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4273 {
4274 (*_bfd_error_handler)
d003868e
AM
4275 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4276 input_bfd,
4277 input_section,
875c0872 4278 (long) rela->r_offset,
f09ebc7d
AM
4279 howto->name,
4280 sym_name);
4281 bfd_set_error (bfd_error_bad_value);
b34976b6 4282 return FALSE;
f09ebc7d 4283 }
30667bf3
AM
4284 }
4285 else
4286 {
4287 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4288 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4289 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4290 return FALSE;
30667bf3
AM
4291 }
4292 }
edd21aca 4293
b34976b6 4294 return TRUE;
30667bf3 4295}
252b5132 4296
30667bf3
AM
4297/* Finish up dynamic symbol handling. We set the contents of various
4298 dynamic sections here. */
252b5132 4299
b34976b6 4300static bfd_boolean
c39a58e6
AM
4301elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4302 struct bfd_link_info *info,
875c0872 4303 struct elf_link_hash_entry *eh,
c39a58e6 4304 Elf_Internal_Sym *sym)
30667bf3 4305{
83c81bfe 4306 struct elf32_hppa_link_hash_table *htab;
875c0872 4307 Elf_Internal_Rela rela;
a252afa4 4308 bfd_byte *loc;
edd21aca 4309
83c81bfe 4310 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4311 if (htab == NULL)
4312 return FALSE;
30667bf3 4313
875c0872 4314 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4315 {
4316 bfd_vma value;
30667bf3 4317
875c0872 4318 if (eh->plt.offset & 1)
8dea1268
AM
4319 abort ();
4320
30667bf3
AM
4321 /* This symbol has an entry in the procedure linkage table. Set
4322 it up.
4323
4324 The format of a plt entry is
74d1c347
AM
4325 <funcaddr>
4326 <__gp>
47d89dba 4327 */
30667bf3 4328 value = 0;
875c0872
DA
4329 if (eh->root.type == bfd_link_hash_defined
4330 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4331 {
875c0872
DA
4332 value = eh->root.u.def.value;
4333 if (eh->root.u.def.section->output_section != NULL)
4334 value += (eh->root.u.def.section->output_offset
4335 + eh->root.u.def.section->output_section->vma);
252b5132 4336 }
edd21aca 4337
a252afa4 4338 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4339 rela.r_offset = (eh->plt.offset
a252afa4
DA
4340 + htab->splt->output_offset
4341 + htab->splt->output_section->vma);
875c0872 4342 if (eh->dynindx != -1)
30667bf3 4343 {
875c0872
DA
4344 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4345 rela.r_addend = 0;
30667bf3 4346 }
ce757d15 4347 else
47d89dba 4348 {
a252afa4
DA
4349 /* This symbol has been marked to become local, and is
4350 used by a plabel so must be kept in the .plt. */
875c0872
DA
4351 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4352 rela.r_addend = value;
47d89dba
AM
4353 }
4354
a252afa4
DA
4355 loc = htab->srelplt->contents;
4356 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4357 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4358
875c0872 4359 if (!eh->def_regular)
30667bf3
AM
4360 {
4361 /* Mark the symbol as undefined, rather than as defined in
4362 the .plt section. Leave the value alone. */
4363 sym->st_shndx = SHN_UNDEF;
4364 }
4365 }
edd21aca 4366
9b52905e
NC
4367 if (eh->got.offset != (bfd_vma) -1
4368 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4369 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4370 {
30667bf3
AM
4371 /* This symbol has an entry in the global offset table. Set it
4372 up. */
4373
875c0872 4374 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4375 + htab->sgot->output_offset
4376 + htab->sgot->output_section->vma);
30667bf3 4377
4dc86686
AM
4378 /* If this is a -Bsymbolic link and the symbol is defined
4379 locally or was forced to be local because of a version file,
4380 we just want to emit a RELATIVE reloc. The entry in the
4381 global offset table will already have been initialized in the
4382 relocate_section function. */
4383 if (info->shared
875c0872
DA
4384 && (info->symbolic || eh->dynindx == -1)
4385 && eh->def_regular)
30667bf3 4386 {
875c0872
DA
4387 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4388 rela.r_addend = (eh->root.u.def.value
4389 + eh->root.u.def.section->output_offset
4390 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4391 }
4392 else
4393 {
875c0872 4394 if ((eh->got.offset & 1) != 0)
49e9d0d3 4395 abort ();
875c0872
DA
4396
4397 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4398 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4399 rela.r_addend = 0;
30667bf3 4400 }
edd21aca 4401
947216bf
AM
4402 loc = htab->srelgot->contents;
4403 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4404 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4405 }
edd21aca 4406
875c0872 4407 if (eh->needs_copy)
30667bf3 4408 {
875c0872 4409 asection *sec;
30667bf3
AM
4410
4411 /* This symbol needs a copy reloc. Set it up. */
4412
875c0872
DA
4413 if (! (eh->dynindx != -1
4414 && (eh->root.type == bfd_link_hash_defined
4415 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4416 abort ();
30667bf3 4417
875c0872 4418 sec = htab->srelbss;
30667bf3 4419
875c0872
DA
4420 rela.r_offset = (eh->root.u.def.value
4421 + eh->root.u.def.section->output_offset
4422 + eh->root.u.def.section->output_section->vma);
4423 rela.r_addend = 0;
4424 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4425 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4426 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4427 }
4428
4429 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4430 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4431 {
4432 sym->st_shndx = SHN_ABS;
4433 }
4434
b34976b6 4435 return TRUE;
30667bf3
AM
4436}
4437
98ceb8ce
AM
4438/* Used to decide how to sort relocs in an optimal manner for the
4439 dynamic linker, before writing them out. */
4440
4441static enum elf_reloc_type_class
7e612e98
AM
4442elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4443 const asection *rel_sec ATTRIBUTE_UNUSED,
4444 const Elf_Internal_Rela *rela)
98ceb8ce 4445{
9b52905e 4446 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4447 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4448 check below. */
4449 switch ((int) ELF32_R_TYPE (rela->r_info))
4450 {
4451 case R_PARISC_TLS_DTPMOD32:
4452 case R_PARISC_TLS_DTPOFF32:
4453 case R_PARISC_TLS_TPREL32:
4454 return reloc_class_normal;
4455 }
4456
cf35638d 4457 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4458 return reloc_class_relative;
4459
4460 switch ((int) ELF32_R_TYPE (rela->r_info))
4461 {
4462 case R_PARISC_IPLT:
4463 return reloc_class_plt;
4464 case R_PARISC_COPY:
4465 return reloc_class_copy;
4466 default:
4467 return reloc_class_normal;
4468 }
4469}
4470
30667bf3
AM
4471/* Finish up the dynamic sections. */
4472
b34976b6 4473static bfd_boolean
c39a58e6
AM
4474elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4475 struct bfd_link_info *info)
30667bf3
AM
4476{
4477 bfd *dynobj;
83c81bfe 4478 struct elf32_hppa_link_hash_table *htab;
30667bf3 4479 asection *sdyn;
894891db 4480 asection * sgot;
30667bf3 4481
83c81bfe 4482 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4483 if (htab == NULL)
4484 return FALSE;
4485
a63e02c7 4486 dynobj = htab->etab.dynobj;
30667bf3 4487
894891db
NC
4488 sgot = htab->sgot;
4489 /* A broken linker script might have discarded the dynamic sections.
4490 Catch this here so that we do not seg-fault later on. */
4491 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4492 return FALSE;
4493
3d4d4302 4494 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4495
a63e02c7 4496 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4497 {
4498 Elf32_External_Dyn *dyncon, *dynconend;
4499
49e9d0d3
AM
4500 if (sdyn == NULL)
4501 abort ();
30667bf3
AM
4502
4503 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4504 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4505 for (; dyncon < dynconend; dyncon++)
edd21aca 4506 {
30667bf3
AM
4507 Elf_Internal_Dyn dyn;
4508 asection *s;
4509
4510 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4511
4512 switch (dyn.d_tag)
4513 {
4514 default:
3ac8354b 4515 continue;
30667bf3
AM
4516
4517 case DT_PLTGOT:
4518 /* Use PLTGOT to set the GOT register. */
4519 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4520 break;
4521
4522 case DT_JMPREL:
83c81bfe 4523 s = htab->srelplt;
30667bf3 4524 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4525 break;
4526
4527 case DT_PLTRELSZ:
83c81bfe 4528 s = htab->srelplt;
eea6121a 4529 dyn.d_un.d_val = s->size;
30667bf3 4530 break;
4e12ff7f
AM
4531
4532 case DT_RELASZ:
4533 /* Don't count procedure linkage table relocs in the
4534 overall reloc count. */
6348e046
AM
4535 s = htab->srelplt;
4536 if (s == NULL)
4537 continue;
eea6121a 4538 dyn.d_un.d_val -= s->size;
6348e046
AM
4539 break;
4540
4541 case DT_RELA:
4542 /* We may not be using the standard ELF linker script.
4543 If .rela.plt is the first .rela section, we adjust
4544 DT_RELA to not include it. */
4545 s = htab->srelplt;
4546 if (s == NULL)
4547 continue;
4548 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4549 continue;
eea6121a 4550 dyn.d_un.d_ptr += s->size;
4e12ff7f 4551 break;
30667bf3 4552 }
3ac8354b
AM
4553
4554 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4555 }
252b5132 4556 }
edd21aca 4557
894891db 4558 if (sgot != NULL && sgot->size != 0)
30667bf3 4559 {
74d1c347
AM
4560 /* Fill in the first entry in the global offset table.
4561 We use it to point to our dynamic section, if we have one. */
30667bf3 4562 bfd_put_32 (output_bfd,
c39a58e6 4563 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4564 sgot->contents);
30667bf3 4565
74d1c347 4566 /* The second entry is reserved for use by the dynamic linker. */
894891db 4567 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4568
30667bf3 4569 /* Set .got entry size. */
894891db 4570 elf_section_data (sgot->output_section)
74d1c347 4571 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4572 }
4573
eea6121a 4574 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4575 {
4576 /* Set plt entry size. */
83c81bfe 4577 elf_section_data (htab->splt->output_section)
47d89dba
AM
4578 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4579
83c81bfe 4580 if (htab->need_plt_stub)
47d89dba
AM
4581 {
4582 /* Set up the .plt stub. */
83c81bfe 4583 memcpy (htab->splt->contents
eea6121a 4584 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4585 plt_stub, sizeof (plt_stub));
4586
83c81bfe
AM
4587 if ((htab->splt->output_offset
4588 + htab->splt->output_section->vma
eea6121a 4589 + htab->splt->size)
894891db
NC
4590 != (sgot->output_offset
4591 + sgot->output_section->vma))
47d89dba
AM
4592 {
4593 (*_bfd_error_handler)
4594 (_(".got section not immediately after .plt section"));
b34976b6 4595 return FALSE;
47d89dba
AM
4596 }
4597 }
4598 }
30667bf3 4599
b34976b6 4600 return TRUE;
30667bf3 4601}
252b5132 4602
30667bf3
AM
4603/* Called when writing out an object file to decide the type of a
4604 symbol. */
4605static int
c39a58e6 4606elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4607{
4608 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4609 return STT_PARISC_MILLI;
4610 else
4611 return type;
252b5132
RH
4612}
4613
4614/* Misc BFD support code. */
30667bf3
AM
4615#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4616#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4617#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4618#define elf_info_to_howto elf_hppa_info_to_howto
4619#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4620
252b5132 4621/* Stuff for the BFD linker. */
c46b7515 4622#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4623#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4624#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4625#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4626#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4627#define elf_backend_check_relocs elf32_hppa_check_relocs
4628#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4629#define elf_backend_fake_sections elf_hppa_fake_sections
4630#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4631#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4632#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4633#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4634#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4635#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4636#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4637#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4638#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4639#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4640#define elf_backend_object_p elf32_hppa_object_p
4641#define elf_backend_final_write_processing elf_hppa_final_write_processing
d1036acb 4642#define elf_backend_post_process_headers _bfd_elf_set_osabi
30667bf3 4643#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4644#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4645#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4646
4647#define elf_backend_can_gc_sections 1
51b64d56 4648#define elf_backend_can_refcount 1
30667bf3
AM
4649#define elf_backend_plt_alignment 2
4650#define elf_backend_want_got_plt 0
4651#define elf_backend_plt_readonly 0
4652#define elf_backend_want_plt_sym 0
74d1c347 4653#define elf_backend_got_header_size 8
f0fe0e16 4654#define elf_backend_rela_normal 1
252b5132
RH
4655
4656#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4657#define TARGET_BIG_NAME "elf32-hppa"
4658#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4659#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4660#define ELF_MACHINE_CODE EM_PARISC
4661#define ELF_MAXPAGESIZE 0x1000
d1036acb 4662#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4663#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4664
4665#include "elf32-target.h"
d952f17a
AM
4666
4667#undef TARGET_BIG_SYM
914dfb0f 4668#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
d952f17a 4669#undef TARGET_BIG_NAME
914dfb0f 4670#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4671#undef ELF_OSABI
9c55345c 4672#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4673#undef elf32_bed
4674#define elf32_bed elf32_hppa_linux_bed
d952f17a 4675
d952f17a 4676#include "elf32-target.h"
225247f0
JT
4677
4678#undef TARGET_BIG_SYM
914dfb0f 4679#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
225247f0 4680#undef TARGET_BIG_NAME
914dfb0f 4681#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4682#undef ELF_OSABI
4683#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4684#undef elf32_bed
4685#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4686
4687#include "elf32-target.h"
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