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[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
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252b5132 1/* BFD back-end for HP PA-RISC ELF files.
4b95cf5c 2 Copyright (C) 1990-2014 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.
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78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
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81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
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88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
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91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
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98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
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
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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
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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
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241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel:1;
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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
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253 /* Linker stub bfd. */
254 bfd *stub_bfd;
255
30667bf3 256 /* Linker call-backs. */
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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. */
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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
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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
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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
DA
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 1773 }
31fc8a0b
NC
1774
1775 /* PR 16082: Remove version information from hidden symbol. */
1776 eh->verinfo.verdef = NULL;
1777 eh->verinfo.vertree = NULL;
e5094212
AM
1778 }
1779
4340287b
DA
1780 /* STT_GNU_IFUNC symbol must go through PLT. */
1781 if (! hppa_elf_hash_entry (eh)->plabel
1782 && eh->type != STT_GNU_IFUNC)
74d1c347 1783 {
875c0872 1784 eh->needs_plt = 0;
4340287b 1785 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1786 }
1787}
1788
30667bf3
AM
1789/* Adjust a symbol defined by a dynamic object and referenced by a
1790 regular object. The current definition is in some section of the
1791 dynamic object, but we're not including those sections. We have to
1792 change the definition to something the rest of the link can
1793 understand. */
252b5132 1794
b34976b6 1795static bfd_boolean
c39a58e6 1796elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1797 struct elf_link_hash_entry *eh)
252b5132 1798{
83c81bfe 1799 struct elf32_hppa_link_hash_table *htab;
875c0872 1800 asection *sec;
30667bf3
AM
1801
1802 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1803 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1804 if (eh->type == STT_FUNC
1805 || eh->needs_plt)
30667bf3 1806 {
4340287b
DA
1807 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1808 The refcounts are not reliable when it has been hidden since
1809 hide_symbol can be called before the plabel flag is set. */
1810 if (hppa_elf_hash_entry (eh)->plabel
1811 && eh->plt.refcount <= 0)
1812 eh->plt.refcount = 1;
1813
875c0872
DA
1814 if (eh->plt.refcount <= 0
1815 || (eh->def_regular
1816 && eh->root.type != bfd_link_hash_defweak
1817 && ! hppa_elf_hash_entry (eh)->plabel
30667bf3
AM
1818 && (!info->shared || info->symbolic)))
1819 {
1820 /* The .plt entry is not needed when:
1821 a) Garbage collection has removed all references to the
1822 symbol, or
1823 b) We know for certain the symbol is defined in this
74d1c347
AM
1824 object, and it's not a weak definition, nor is the symbol
1825 used by a plabel relocation. Either this object is the
1826 application or we are doing a shared symbolic link. */
1827
875c0872
DA
1828 eh->plt.offset = (bfd_vma) -1;
1829 eh->needs_plt = 0;
30667bf3 1830 }
4dc86686 1831
b34976b6 1832 return TRUE;
30667bf3 1833 }
bbd7ec4a 1834 else
875c0872 1835 eh->plt.offset = (bfd_vma) -1;
edd21aca 1836
30667bf3
AM
1837 /* If this is a weak symbol, and there is a real definition, the
1838 processor independent code will have arranged for us to see the
1839 real definition first, and we can just use the same value. */
875c0872 1840 if (eh->u.weakdef != NULL)
edd21aca 1841 {
875c0872
DA
1842 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1843 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1844 abort ();
875c0872
DA
1845 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1846 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1847 if (ELIMINATE_COPY_RELOCS)
875c0872 1848 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1849 return TRUE;
30667bf3 1850 }
edd21aca 1851
30667bf3
AM
1852 /* This is a reference to a symbol defined by a dynamic object which
1853 is not a function. */
1854
1855 /* If we are creating a shared library, we must presume that the
1856 only references to the symbol are via the global offset table.
1857 For such cases we need not do anything here; the relocations will
1858 be handled correctly by relocate_section. */
1859 if (info->shared)
b34976b6 1860 return TRUE;
30667bf3
AM
1861
1862 /* If there are no references to this symbol that do not use the
1863 GOT, we don't need to generate a copy reloc. */
875c0872 1864 if (!eh->non_got_ref)
b34976b6 1865 return TRUE;
30667bf3 1866
4fc8051d 1867 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1868 {
875c0872
DA
1869 struct elf32_hppa_link_hash_entry *hh;
1870 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1871
875c0872 1872 hh = hppa_elf_hash_entry (eh);
a63e02c7 1873 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1874 {
875c0872
DA
1875 sec = hdh_p->sec->output_section;
1876 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1877 break;
1878 }
1879
1880 /* If we didn't find any dynamic relocs in read-only sections, then
1881 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1882 if (hdh_p == NULL)
4fc8051d 1883 {
875c0872 1884 eh->non_got_ref = 0;
4fc8051d
AM
1885 return TRUE;
1886 }
ebe50bae
AM
1887 }
1888
30667bf3
AM
1889 /* We must allocate the symbol in our .dynbss section, which will
1890 become part of the .bss section of the executable. There will be
1891 an entry for this symbol in the .dynsym section. The dynamic
1892 object will contain position independent code, so all references
1893 from the dynamic object to this symbol will go through the global
1894 offset table. The dynamic linker will use the .dynsym entry to
1895 determine the address it must put in the global offset table, so
1896 both the dynamic object and the regular object will refer to the
1897 same memory location for the variable. */
1898
3ac8354b 1899 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1900 if (htab == NULL)
1901 return FALSE;
30667bf3
AM
1902
1903 /* We must generate a COPY reloc to tell the dynamic linker to
1904 copy the initial value out of the dynamic object and into the
3ac8354b 1905 runtime process image. */
1d7e9d18 1906 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1907 {
eea6121a 1908 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1909 eh->needs_copy = 1;
edd21aca 1910 }
252b5132 1911
875c0872 1912 sec = htab->sdynbss;
edd21aca 1913
027297b7 1914 return _bfd_elf_adjust_dynamic_copy (eh, sec);
252b5132
RH
1915}
1916
e5ee5df1 1917/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1918 ie. plabel entries. */
a8d02d66 1919
b34976b6 1920static bfd_boolean
875c0872 1921allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1922{
1923 struct bfd_link_info *info;
1924 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1925 struct elf32_hppa_link_hash_entry *hh;
1926 asection *sec;
a8d02d66 1927
875c0872 1928 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1929 return TRUE;
a8d02d66 1930
875c0872 1931 info = (struct bfd_link_info *) inf;
9b52905e 1932 hh = hppa_elf_hash_entry (eh);
a8d02d66 1933 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1934 if (htab == NULL)
1935 return FALSE;
1936
a63e02c7 1937 if (htab->etab.dynamic_sections_created
875c0872 1938 && eh->plt.refcount > 0)
e5ee5df1
AM
1939 {
1940 /* Make sure this symbol is output as a dynamic symbol.
1941 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1942 if (eh->dynindx == -1
1943 && !eh->forced_local
1944 && eh->type != STT_PARISC_MILLI)
a8d02d66 1945 {
875c0872 1946 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1947 return FALSE;
e5ee5df1
AM
1948 }
1949
875c0872 1950 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1951 {
067fa4a6
AM
1952 /* Allocate these later. From this point on, h->plabel
1953 means that the plt entry is only used by a plabel.
1954 We'll be using a normal plt entry for this symbol, so
1955 clear the plabel indicator. */
68ffbac6 1956
875c0872 1957 hh->plabel = 0;
e5ee5df1 1958 }
875c0872 1959 else if (hh->plabel)
e5ee5df1
AM
1960 {
1961 /* Make an entry in the .plt section for plabel references
1962 that won't have a .plt entry for other reasons. */
875c0872
DA
1963 sec = htab->splt;
1964 eh->plt.offset = sec->size;
1965 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1966 }
1967 else
e5ee5df1
AM
1968 {
1969 /* No .plt entry needed. */
875c0872
DA
1970 eh->plt.offset = (bfd_vma) -1;
1971 eh->needs_plt = 0;
e5ee5df1
AM
1972 }
1973 }
1974 else
1975 {
875c0872
DA
1976 eh->plt.offset = (bfd_vma) -1;
1977 eh->needs_plt = 0;
a8d02d66
AM
1978 }
1979
b34976b6 1980 return TRUE;
a8d02d66
AM
1981}
1982
4dc86686
AM
1983/* Allocate space in .plt, .got and associated reloc sections for
1984 global syms. */
1985
b34976b6 1986static bfd_boolean
875c0872 1987allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1988{
1989 struct bfd_link_info *info;
83c81bfe 1990 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1991 asection *sec;
1992 struct elf32_hppa_link_hash_entry *hh;
1993 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 1994
875c0872 1995 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1996 return TRUE;
73a74a62 1997
c39a58e6 1998 info = inf;
83c81bfe 1999 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2000 if (htab == NULL)
2001 return FALSE;
2002
875c0872 2003 hh = hppa_elf_hash_entry (eh);
68ffbac6 2004
a63e02c7 2005 if (htab->etab.dynamic_sections_created
875c0872
DA
2006 && eh->plt.offset != (bfd_vma) -1
2007 && !hh->plabel
2008 && eh->plt.refcount > 0)
4dc86686 2009 {
e5ee5df1 2010 /* Make an entry in the .plt section. */
875c0872
DA
2011 sec = htab->splt;
2012 eh->plt.offset = sec->size;
2013 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2014
e5ee5df1 2015 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2016 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2017 htab->need_plt_stub = 1;
4dc86686 2018 }
edd21aca 2019
875c0872 2020 if (eh->got.refcount > 0)
4dc86686 2021 {
446f2863
AM
2022 /* Make sure this symbol is output as a dynamic symbol.
2023 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2024 if (eh->dynindx == -1
2025 && !eh->forced_local
2026 && eh->type != STT_PARISC_MILLI)
446f2863 2027 {
875c0872 2028 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2029 return FALSE;
446f2863
AM
2030 }
2031
875c0872
DA
2032 sec = htab->sgot;
2033 eh->got.offset = sec->size;
2034 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2035 /* R_PARISC_TLS_GD* needs two GOT entries */
2036 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2037 sec->size += GOT_ENTRY_SIZE * 2;
2038 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2039 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2040 if (htab->etab.dynamic_sections_created
ce757d15 2041 && (info->shared
875c0872
DA
2042 || (eh->dynindx != -1
2043 && !eh->forced_local)))
ce757d15 2044 {
eea6121a 2045 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2046 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2047 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2048 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2049 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2050 }
4dc86686
AM
2051 }
2052 else
875c0872 2053 eh->got.offset = (bfd_vma) -1;
30667bf3 2054
875c0872 2055 if (hh->dyn_relocs == NULL)
b34976b6 2056 return TRUE;
30667bf3 2057
98ceb8ce
AM
2058 /* If this is a -Bsymbolic shared link, then we need to discard all
2059 space allocated for dynamic pc-relative relocs against symbols
2060 defined in a regular object. For the normal shared case, discard
2061 space for relocs that have become local due to symbol visibility
2062 changes. */
2063 if (info->shared)
446f2863 2064 {
98ceb8ce 2065#if RELATIVE_DYNRELOCS
875c0872 2066 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2067 {
875c0872 2068 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2069
875c0872 2070 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2071 {
875c0872
DA
2072 hdh_p->count -= hdh_p->relative_count;
2073 hdh_p->relative_count = 0;
2074 if (hdh_p->count == 0)
a63e02c7 2075 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2076 else
a63e02c7 2077 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2078 }
2079 }
2080#endif
4fc8051d
AM
2081
2082 /* Also discard relocs on undefined weak syms with non-default
2083 visibility. */
22d606e9 2084 if (hh->dyn_relocs != NULL
875c0872 2085 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2086 {
2087 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2088 hh->dyn_relocs = NULL;
2089
2090 /* Make sure undefined weak symbols are output as a dynamic
2091 symbol in PIEs. */
2092 else if (eh->dynindx == -1
2093 && !eh->forced_local)
2094 {
2095 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2096 return FALSE;
2097 }
2098 }
446f2863 2099 }
98ceb8ce 2100 else
30667bf3 2101 {
98ceb8ce
AM
2102 /* For the non-shared case, discard space for relocs against
2103 symbols which turn out to need copy relocs or are not
2104 dynamic. */
68ffbac6 2105
875c0872 2106 if (!eh->non_got_ref
4fc8051d 2107 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2108 && eh->def_dynamic
2109 && !eh->def_regular)
a63e02c7 2110 || (htab->etab.dynamic_sections_created
875c0872
DA
2111 && (eh->root.type == bfd_link_hash_undefweak
2112 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2113 {
2114 /* Make sure this symbol is output as a dynamic symbol.
2115 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2116 if (eh->dynindx == -1
2117 && !eh->forced_local
2118 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2119 {
875c0872 2120 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2121 return FALSE;
98ceb8ce
AM
2122 }
2123
2124 /* If that succeeded, we know we'll be keeping all the
2125 relocs. */
875c0872 2126 if (eh->dynindx != -1)
98ceb8ce
AM
2127 goto keep;
2128 }
446f2863 2129
875c0872 2130 hh->dyn_relocs = NULL;
b34976b6 2131 return TRUE;
98ceb8ce 2132
ec338859 2133 keep: ;
30667bf3 2134 }
30667bf3 2135
98ceb8ce 2136 /* Finally, allocate space. */
a63e02c7 2137 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2138 {
875c0872
DA
2139 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2140 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2141 }
30667bf3 2142
b34976b6 2143 return TRUE;
30667bf3 2144}
30667bf3 2145
d5c73c2f
AM
2146/* This function is called via elf_link_hash_traverse to force
2147 millicode symbols local so they do not end up as globals in the
2148 dynamic symbol table. We ought to be able to do this in
2149 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2150 for all dynamic symbols. Arguably, this is a bug in
2151 elf_adjust_dynamic_symbol. */
2152
b34976b6 2153static bfd_boolean
875c0872 2154clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2155 struct bfd_link_info *info)
d5c73c2f 2156{
875c0872
DA
2157 if (eh->type == STT_PARISC_MILLI
2158 && !eh->forced_local)
e0522e89 2159 {
875c0872 2160 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2161 }
b34976b6 2162 return TRUE;
d5c73c2f
AM
2163}
2164
98ceb8ce
AM
2165/* Find any dynamic relocs that apply to read-only sections. */
2166
b34976b6 2167static bfd_boolean
875c0872 2168readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2169{
875c0872
DA
2170 struct elf32_hppa_link_hash_entry *hh;
2171 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2172
875c0872 2173 hh = hppa_elf_hash_entry (eh);
a63e02c7 2174 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2175 {
875c0872 2176 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2177
875c0872 2178 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2179 {
c39a58e6 2180 struct bfd_link_info *info = inf;
98ceb8ce
AM
2181
2182 info->flags |= DF_TEXTREL;
2183
2184 /* Not an error, just cut short the traversal. */
b34976b6 2185 return FALSE;
98ceb8ce
AM
2186 }
2187 }
b34976b6 2188 return TRUE;
98ceb8ce
AM
2189}
2190
30667bf3
AM
2191/* Set the sizes of the dynamic sections. */
2192
b34976b6 2193static bfd_boolean
c39a58e6
AM
2194elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2195 struct bfd_link_info *info)
30667bf3 2196{
83c81bfe 2197 struct elf32_hppa_link_hash_table *htab;
30667bf3 2198 bfd *dynobj;
98ceb8ce 2199 bfd *ibfd;
875c0872 2200 asection *sec;
b34976b6 2201 bfd_boolean relocs;
30667bf3 2202
83c81bfe 2203 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2204 if (htab == NULL)
2205 return FALSE;
2206
a63e02c7 2207 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2208 if (dynobj == NULL)
2209 abort ();
30667bf3 2210
a63e02c7 2211 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2212 {
2213 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2214 if (info->executable)
30667bf3 2215 {
3d4d4302 2216 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2217 if (sec == NULL)
49e9d0d3 2218 abort ();
875c0872
DA
2219 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2220 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2221 }
74d1c347 2222
d5c73c2f 2223 /* Force millicode symbols local. */
a63e02c7 2224 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2225 clobber_millicode_symbols,
2226 info);
68fb2e56 2227 }
d5c73c2f 2228
98ceb8ce
AM
2229 /* Set up .got and .plt offsets for local syms, and space for local
2230 dynamic relocs. */
2231 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
68fb2e56
AM
2232 {
2233 bfd_signed_vma *local_got;
2234 bfd_signed_vma *end_local_got;
2235 bfd_signed_vma *local_plt;
2236 bfd_signed_vma *end_local_plt;
2237 bfd_size_type locsymcount;
2238 Elf_Internal_Shdr *symtab_hdr;
2239 asection *srel;
9b52905e 2240 char *local_tls_type;
74d1c347 2241
98ceb8ce 2242 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2243 continue;
4dc86686 2244
875c0872 2245 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2246 {
875c0872 2247 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2248
875c0872
DA
2249 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2250 elf_section_data (sec)->local_dynrel);
2251 hdh_p != NULL;
a63e02c7 2252 hdh_p = hdh_p->hdh_next)
98ceb8ce 2253 {
875c0872
DA
2254 if (!bfd_is_abs_section (hdh_p->sec)
2255 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2256 {
2257 /* Input section has been discarded, either because
2258 it is a copy of a linkonce section or due to
2259 linker script /DISCARD/, so we'll be discarding
2260 the relocs too. */
2261 }
875c0872 2262 else if (hdh_p->count != 0)
ec338859 2263 {
875c0872
DA
2264 srel = elf_section_data (hdh_p->sec)->sreloc;
2265 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2266 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2267 info->flags |= DF_TEXTREL;
ec338859 2268 }
98ceb8ce
AM
2269 }
2270 }
2271
2272 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2273 if (!local_got)
2274 continue;
74d1c347 2275
98ceb8ce 2276 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2277 locsymcount = symtab_hdr->sh_info;
2278 end_local_got = local_got + locsymcount;
9b52905e 2279 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2280 sec = htab->sgot;
83c81bfe 2281 srel = htab->srelgot;
68fb2e56
AM
2282 for (; local_got < end_local_got; ++local_got)
2283 {
2284 if (*local_got > 0)
4dc86686 2285 {
875c0872
DA
2286 *local_got = sec->size;
2287 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2288 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2289 sec->size += 2 * GOT_ENTRY_SIZE;
2290 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2291 sec->size += GOT_ENTRY_SIZE;
68ffbac6 2292 if (info->shared)
9b52905e
NC
2293 {
2294 srel->size += sizeof (Elf32_External_Rela);
2295 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2296 srel->size += 2 * sizeof (Elf32_External_Rela);
2297 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2298 srel->size += sizeof (Elf32_External_Rela);
2299 }
4dc86686 2300 }
68fb2e56
AM
2301 else
2302 *local_got = (bfd_vma) -1;
9b52905e
NC
2303
2304 ++local_tls_type;
68fb2e56 2305 }
74d1c347 2306
68fb2e56
AM
2307 local_plt = end_local_got;
2308 end_local_plt = local_plt + locsymcount;
a63e02c7 2309 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2310 {
2311 /* Won't be used, but be safe. */
2312 for (; local_plt < end_local_plt; ++local_plt)
2313 *local_plt = (bfd_vma) -1;
2314 }
2315 else
2316 {
875c0872 2317 sec = htab->splt;
83c81bfe 2318 srel = htab->srelplt;
74d1c347
AM
2319 for (; local_plt < end_local_plt; ++local_plt)
2320 {
2321 if (*local_plt > 0)
2322 {
875c0872
DA
2323 *local_plt = sec->size;
2324 sec->size += PLT_ENTRY_SIZE;
74d1c347 2325 if (info->shared)
eea6121a 2326 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2327 }
2328 else
2329 *local_plt = (bfd_vma) -1;
2330 }
2331 }
30667bf3 2332 }
68ffbac6 2333
9b52905e
NC
2334 if (htab->tls_ldm_got.refcount > 0)
2335 {
68ffbac6 2336 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e
NC
2337 R_PARISC_TLS_DTPMOD32 relocs. */
2338 htab->tls_ldm_got.offset = htab->sgot->size;
2339 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2340 htab->srelgot->size += sizeof (Elf32_External_Rela);
2341 }
2342 else
2343 htab->tls_ldm_got.offset = -1;
30667bf3 2344
e5ee5df1
AM
2345 /* Do all the .plt entries without relocs first. The dynamic linker
2346 uses the last .plt reloc to find the end of the .plt (and hence
2347 the start of the .got) for lazy linking. */
a63e02c7 2348 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2349
98ceb8ce
AM
2350 /* Allocate global sym .plt and .got entries, and space for global
2351 sym dynamic relocs. */
a63e02c7 2352 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2353
2354 /* The check_relocs and adjust_dynamic_symbol entry points have
2355 determined the sizes of the various dynamic sections. Allocate
2356 memory for them. */
b34976b6 2357 relocs = FALSE;
875c0872 2358 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2359 {
875c0872 2360 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2361 continue;
2362
875c0872 2363 if (sec == htab->splt)
68fb2e56 2364 {
83c81bfe 2365 if (htab->need_plt_stub)
68fb2e56
AM
2366 {
2367 /* Make space for the plt stub at the end of the .plt
2368 section. We want this stub right at the end, up
2369 against the .got section. */
83c81bfe 2370 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2371 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2372 bfd_size_type mask;
30667bf3 2373
68fb2e56 2374 if (gotalign > pltalign)
a253d456 2375 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2376 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2377 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2378 }
2379 }
c456f082
AM
2380 else if (sec == htab->sgot
2381 || sec == htab->sdynbss)
68fb2e56 2382 ;
0112cd26 2383 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2384 {
875c0872 2385 if (sec->size != 0)
30667bf3 2386 {
4e12ff7f
AM
2387 /* Remember whether there are any reloc sections other
2388 than .rela.plt. */
875c0872 2389 if (sec != htab->srelplt)
b34976b6 2390 relocs = TRUE;
47d89dba 2391
30667bf3
AM
2392 /* We use the reloc_count field as a counter if we need
2393 to copy relocs into the output file. */
875c0872 2394 sec->reloc_count = 0;
30667bf3
AM
2395 }
2396 }
30667bf3
AM
2397 else
2398 {
2399 /* It's not one of our sections, so don't allocate space. */
2400 continue;
2401 }
2402
875c0872 2403 if (sec->size == 0)
30667bf3
AM
2404 {
2405 /* If we don't need this section, strip it from the
2406 output file. This is mostly to handle .rela.bss and
2407 .rela.plt. We must create both sections in
2408 create_dynamic_sections, because they must be created
2409 before the linker maps input sections to output
2410 sections. The linker does that before
2411 adjust_dynamic_symbol is called, and it is that
2412 function which decides whether anything needs to go
2413 into these sections. */
875c0872 2414 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2415 continue;
2416 }
2417
c456f082
AM
2418 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2419 continue;
2420
30667bf3
AM
2421 /* Allocate memory for the section contents. Zero it, because
2422 we may not fill in all the reloc sections. */
875c0872 2423 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2424 if (sec->contents == NULL)
b34976b6 2425 return FALSE;
30667bf3
AM
2426 }
2427
a63e02c7 2428 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2429 {
2430 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2431 actually has nothing to do with the PLT, it is how we
2432 communicate the LTP value of a load module to the dynamic
2433 linker. */
dc810e39 2434#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2435 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2436
2437 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2438 return FALSE;
30667bf3
AM
2439
2440 /* Add some entries to the .dynamic section. We fill in the
2441 values later, in elf32_hppa_finish_dynamic_sections, but we
2442 must add the entries now so that we get the correct size for
2443 the .dynamic section. The DT_DEBUG entry is filled in by the
2444 dynamic linker and used by the debugger. */
3c27d551 2445 if (info->executable)
30667bf3 2446 {
dc810e39 2447 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2448 return FALSE;
30667bf3
AM
2449 }
2450
eea6121a 2451 if (htab->srelplt->size != 0)
30667bf3 2452 {
dc810e39
AM
2453 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2454 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2455 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2456 return FALSE;
30667bf3
AM
2457 }
2458
2459 if (relocs)
2460 {
dc810e39
AM
2461 if (!add_dynamic_entry (DT_RELA, 0)
2462 || !add_dynamic_entry (DT_RELASZ, 0)
2463 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2464 return FALSE;
30667bf3 2465
98ceb8ce
AM
2466 /* If any dynamic relocs apply to a read-only section,
2467 then we need a DT_TEXTREL entry. */
248866a8 2468 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2469 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2470
2471 if ((info->flags & DF_TEXTREL) != 0)
2472 {
2473 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2474 return FALSE;
98ceb8ce 2475 }
30667bf3
AM
2476 }
2477 }
dc810e39 2478#undef add_dynamic_entry
30667bf3 2479
b34976b6 2480 return TRUE;
30667bf3
AM
2481}
2482
30667bf3
AM
2483/* External entry points for sizing and building linker stubs. */
2484
b4655ea9
AM
2485/* Set up various things so that we can make a list of input sections
2486 for each output section included in the link. Returns -1 on error,
cedb70c5 2487 0 when no stubs will be needed, and 1 on success. */
30667bf3 2488
b4655ea9 2489int
c39a58e6 2490elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2491{
2492 bfd *input_bfd;
b4655ea9
AM
2493 unsigned int bfd_count;
2494 int top_id, top_index;
30667bf3 2495 asection *section;
25f72752 2496 asection **input_list, **list;
dc810e39 2497 bfd_size_type amt;
b4655ea9 2498 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2499
4dfe6ac6
NC
2500 if (htab == NULL)
2501 return -1;
2502
1badb539
AM
2503 /* Count the number of input BFDs and find the top input section id. */
2504 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2505 input_bfd != NULL;
2506 input_bfd = input_bfd->link_next)
2507 {
2508 bfd_count += 1;
25f72752
AM
2509 for (section = input_bfd->sections;
2510 section != NULL;
2511 section = section->next)
2512 {
2513 if (top_id < section->id)
2514 top_id = section->id;
2515 }
30667bf3 2516 }
b4655ea9 2517 htab->bfd_count = bfd_count;
30667bf3 2518
dc810e39 2519 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2520 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2521 if (htab->stub_group == NULL)
b4655ea9 2522 return -1;
1badb539 2523
b4655ea9 2524 /* We can't use output_bfd->section_count here to find the top output
1badb539 2525 section index as some sections may have been removed, and
8423293d 2526 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2527 for (section = output_bfd->sections, top_index = 0;
2528 section != NULL;
2529 section = section->next)
2530 {
2531 if (top_index < section->index)
2532 top_index = section->index;
2533 }
2534
b4655ea9 2535 htab->top_index = top_index;
dc810e39 2536 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2537 input_list = bfd_malloc (amt);
b4655ea9 2538 htab->input_list = input_list;
25f72752 2539 if (input_list == NULL)
b4655ea9 2540 return -1;
25f72752 2541
1badb539
AM
2542 /* For sections we aren't interested in, mark their entries with a
2543 value we can check later. */
2544 list = input_list + top_index;
2545 do
2546 *list = bfd_abs_section_ptr;
2547 while (list-- != input_list);
2548
2549 for (section = output_bfd->sections;
2550 section != NULL;
2551 section = section->next)
2552 {
47d89dba 2553 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2554 input_list[section->index] = NULL;
2555 }
2556
b4655ea9
AM
2557 return 1;
2558}
2559
2560/* The linker repeatedly calls this function for each input section,
2561 in the order that input sections are linked into output sections.
2562 Build lists of input sections to determine groupings between which
2563 we may insert linker stubs. */
2564
2565void
c39a58e6 2566elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2567{
2568 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2569
4dfe6ac6
NC
2570 if (htab == NULL)
2571 return;
2572
b4655ea9 2573 if (isec->output_section->index <= htab->top_index)
25f72752 2574 {
b4655ea9
AM
2575 asection **list = htab->input_list + isec->output_section->index;
2576 if (*list != bfd_abs_section_ptr)
25f72752 2577 {
b4655ea9 2578 /* Steal the link_sec pointer for our list. */
83c81bfe 2579#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2580 /* This happens to make the list in reverse order,
2581 which is what we want. */
2582 PREV_SEC (isec) = *list;
2583 *list = isec;
25f72752
AM
2584 }
2585 }
b4655ea9 2586}
25f72752 2587
b4655ea9
AM
2588/* See whether we can group stub sections together. Grouping stub
2589 sections may result in fewer stubs. More importantly, we need to
2590 put all .init* and .fini* stubs at the beginning of the .init or
2591 .fini output sections respectively, because glibc splits the
2592 _init and _fini functions into multiple parts. Putting a stub in
2593 the middle of a function is not a good idea. */
2594
2595static void
c39a58e6
AM
2596group_sections (struct elf32_hppa_link_hash_table *htab,
2597 bfd_size_type stub_group_size,
2598 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2599{
2600 asection **list = htab->input_list + htab->top_index;
1badb539 2601 do
25f72752
AM
2602 {
2603 asection *tail = *list;
1badb539
AM
2604 if (tail == bfd_abs_section_ptr)
2605 continue;
25f72752
AM
2606 while (tail != NULL)
2607 {
2608 asection *curr;
2609 asection *prev;
2610 bfd_size_type total;
00b28bb0 2611 bfd_boolean big_sec;
25f72752
AM
2612
2613 curr = tail;
eea6121a 2614 total = tail->size;
00b28bb0
AM
2615 big_sec = total >= stub_group_size;
2616
25f72752
AM
2617 while ((prev = PREV_SEC (curr)) != NULL
2618 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2619 < stub_group_size))
25f72752
AM
2620 curr = prev;
2621
2622 /* OK, the size from the start of CURR to the end is less
a248e267 2623 than 240000 bytes and thus can be handled by one stub
25f72752 2624 section. (or the tail section is itself larger than
a248e267 2625 240000 bytes, in which case we may be toast.)
25f72752
AM
2626 We should really be keeping track of the total size of
2627 stubs added here, as stubs contribute to the final output
2628 section size. That's a little tricky, and this way will
a248e267
AM
2629 only break if stubs added total more than 22144 bytes, or
2630 2768 long branch stubs. It seems unlikely for more than
2631 2768 different functions to be called, especially from
2632 code only 240000 bytes long. This limit used to be
2633 250000, but c++ code tends to generate lots of little
2634 functions, and sometimes violated the assumption. */
25f72752
AM
2635 do
2636 {
2637 prev = PREV_SEC (tail);
2638 /* Set up this stub group. */
83c81bfe 2639 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2640 }
2641 while (tail != curr && (tail = prev) != NULL);
2642
a248e267 2643 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2644 bytes before the stub section can be handled by it too.
2645 Don't do this if we have a really large section after the
2646 stubs, as adding more stubs increases the chance that
2647 branches may not reach into the stub section. */
2648 if (!stubs_always_before_branch && !big_sec)
25f72752 2649 {
47d89dba
AM
2650 total = 0;
2651 while (prev != NULL
2652 && ((total += tail->output_offset - prev->output_offset)
2653 < stub_group_size))
2654 {
2655 tail = prev;
2656 prev = PREV_SEC (tail);
83c81bfe 2657 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2658 }
25f72752
AM
2659 }
2660 tail = prev;
2661 }
2662 }
b4655ea9
AM
2663 while (list-- != htab->input_list);
2664 free (htab->input_list);
1badb539 2665#undef PREV_SEC
b4655ea9
AM
2666}
2667
2668/* Read in all local syms for all input bfds, and create hash entries
2669 for export stubs if we are building a multi-subspace shared lib.
2670 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2671
2672static int
c39a58e6 2673get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2674{
2675 unsigned int bfd_indx;
2676 Elf_Internal_Sym *local_syms, **all_local_syms;
2677 int stub_changed = 0;
2678 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2679
4dfe6ac6
NC
2680 if (htab == NULL)
2681 return -1;
2682
30667bf3
AM
2683 /* We want to read in symbol extension records only once. To do this
2684 we need to read in the local symbols in parallel and save them for
2685 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2686 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2687 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2688 htab->all_local_syms = all_local_syms;
30667bf3 2689 if (all_local_syms == NULL)
b4655ea9 2690 return -1;
30667bf3
AM
2691
2692 /* Walk over all the input BFDs, swapping in local symbols.
2693 If we are creating a shared library, create hash entries for the
2694 export stubs. */
b4655ea9 2695 for (bfd_indx = 0;
30667bf3 2696 input_bfd != NULL;
25f72752 2697 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2698 {
2699 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2700
252b5132
RH
2701 /* We'll need the symbol table in a second. */
2702 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2703 if (symtab_hdr->sh_info == 0)
2704 continue;
2705
6cdc0ccc
AM
2706 /* We need an array of the local symbols attached to the input bfd. */
2707 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2708 if (local_syms == NULL)
edd21aca 2709 {
6cdc0ccc
AM
2710 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2711 symtab_hdr->sh_info, 0,
2712 NULL, NULL, NULL);
2713 /* Cache them for elf_link_input_bfd. */
2714 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2715 }
6cdc0ccc
AM
2716 if (local_syms == NULL)
2717 return -1;
edd21aca 2718
6cdc0ccc 2719 all_local_syms[bfd_indx] = local_syms;
edd21aca 2720
83c81bfe 2721 if (info->shared && htab->multi_subspace)
30667bf3 2722 {
875c0872
DA
2723 struct elf_link_hash_entry **eh_syms;
2724 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2725 unsigned int symcount;
2726
2727 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2728 - symtab_hdr->sh_info);
875c0872
DA
2729 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2730 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2731
2732 /* Look through the global syms for functions; We need to
2733 build export stubs for all globally visible functions. */
875c0872 2734 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2735 {
875c0872 2736 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2737
875c0872 2738 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2739
a63e02c7
DA
2740 while (hh->eh.root.type == bfd_link_hash_indirect
2741 || hh->eh.root.type == bfd_link_hash_warning)
2742 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2743
2744 /* At this point in the link, undefined syms have been
2745 resolved, so we need to check that the symbol was
2746 defined in this BFD. */
a63e02c7
DA
2747 if ((hh->eh.root.type == bfd_link_hash_defined
2748 || hh->eh.root.type == bfd_link_hash_defweak)
2749 && hh->eh.type == STT_FUNC
2750 && hh->eh.root.u.def.section->output_section != NULL
2751 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2752 == output_bfd)
a63e02c7
DA
2753 && hh->eh.root.u.def.section->owner == input_bfd
2754 && hh->eh.def_regular
2755 && !hh->eh.forced_local
2756 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2757 {
2758 asection *sec;
2759 const char *stub_name;
875c0872 2760 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2761
a63e02c7 2762 sec = hh->eh.root.u.def.section;
9b52905e 2763 stub_name = hh_name (hh);
a63e02c7 2764 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2765 stub_name,
b34976b6 2766 FALSE, FALSE);
875c0872 2767 if (hsh == NULL)
30667bf3 2768 {
875c0872
DA
2769 hsh = hppa_add_stub (stub_name, sec, htab);
2770 if (!hsh)
b4655ea9 2771 return -1;
30667bf3 2772
a63e02c7
DA
2773 hsh->target_value = hh->eh.root.u.def.value;
2774 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2775 hsh->stub_type = hppa_stub_export;
a63e02c7 2776 hsh->hh = hh;
30667bf3
AM
2777 stub_changed = 1;
2778 }
2779 else
2780 {
d003868e
AM
2781 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2782 input_bfd,
8f615d07 2783 stub_name);
30667bf3
AM
2784 }
2785 }
2786 }
30667bf3
AM
2787 }
2788 }
edd21aca 2789
b4655ea9
AM
2790 return stub_changed;
2791}
2792
2793/* Determine and set the size of the stub section for a final link.
2794
2795 The basic idea here is to examine all the relocations looking for
2796 PC-relative calls to a target that is unreachable with a "bl"
2797 instruction. */
2798
b34976b6 2799bfd_boolean
c39a58e6
AM
2800elf32_hppa_size_stubs
2801 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2802 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2803 asection * (*add_stub_section) (const char *, asection *),
2804 void (*layout_sections_again) (void))
b4655ea9
AM
2805{
2806 bfd_size_type stub_group_size;
b34976b6
AM
2807 bfd_boolean stubs_always_before_branch;
2808 bfd_boolean stub_changed;
b4655ea9
AM
2809 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2810
4dfe6ac6
NC
2811 if (htab == NULL)
2812 return FALSE;
2813
b4655ea9
AM
2814 /* Stash our params away. */
2815 htab->stub_bfd = stub_bfd;
2816 htab->multi_subspace = multi_subspace;
2817 htab->add_stub_section = add_stub_section;
2818 htab->layout_sections_again = layout_sections_again;
2819 stubs_always_before_branch = group_size < 0;
2820 if (group_size < 0)
2821 stub_group_size = -group_size;
2822 else
2823 stub_group_size = group_size;
2824 if (stub_group_size == 1)
2825 {
2826 /* Default values. */
acc990f2
AM
2827 if (stubs_always_before_branch)
2828 {
2829 stub_group_size = 7680000;
2830 if (htab->has_17bit_branch || htab->multi_subspace)
2831 stub_group_size = 240000;
2832 if (htab->has_12bit_branch)
2833 stub_group_size = 7500;
2834 }
2835 else
2836 {
2837 stub_group_size = 6971392;
2838 if (htab->has_17bit_branch || htab->multi_subspace)
2839 stub_group_size = 217856;
2840 if (htab->has_12bit_branch)
2841 stub_group_size = 6808;
2842 }
b4655ea9
AM
2843 }
2844
2845 group_sections (htab, stub_group_size, stubs_always_before_branch);
2846
2847 switch (get_local_syms (output_bfd, info->input_bfds, info))
2848 {
2849 default:
2850 if (htab->all_local_syms)
2851 goto error_ret_free_local;
b34976b6 2852 return FALSE;
b4655ea9
AM
2853
2854 case 0:
b34976b6 2855 stub_changed = FALSE;
b4655ea9
AM
2856 break;
2857
2858 case 1:
b34976b6 2859 stub_changed = TRUE;
b4655ea9
AM
2860 break;
2861 }
2862
edd21aca
AM
2863 while (1)
2864 {
b4655ea9
AM
2865 bfd *input_bfd;
2866 unsigned int bfd_indx;
30667bf3
AM
2867 asection *stub_sec;
2868
25f72752 2869 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2870 input_bfd != NULL;
25f72752 2871 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2872 {
2873 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2874 asection *section;
2875 Elf_Internal_Sym *local_syms;
30667bf3
AM
2876
2877 /* We'll need the symbol table in a second. */
2878 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2879 if (symtab_hdr->sh_info == 0)
2880 continue;
2881
b4655ea9 2882 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2883
2884 /* Walk over each section attached to the input bfd. */
2885 for (section = input_bfd->sections;
2886 section != NULL;
25f72752 2887 section = section->next)
30667bf3 2888 {
30667bf3
AM
2889 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2890
2891 /* If there aren't any relocs, then there's nothing more
2892 to do. */
2893 if ((section->flags & SEC_RELOC) == 0
2894 || section->reloc_count == 0)
2895 continue;
2896
25f72752
AM
2897 /* If this section is a link-once section that will be
2898 discarded, then don't create any stubs. */
2899 if (section->output_section == NULL
2900 || section->output_section->owner != output_bfd)
2901 continue;
2902
1e2f5b6e
AM
2903 /* Get the relocs. */
2904 internal_relocs
c39a58e6 2905 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2906 info->keep_memory);
30667bf3 2907 if (internal_relocs == NULL)
1e2f5b6e 2908 goto error_ret_free_local;
30667bf3
AM
2909
2910 /* Now examine each relocation. */
2911 irela = internal_relocs;
2912 irelaend = irela + section->reloc_count;
2913 for (; irela < irelaend; irela++)
2914 {
2915 unsigned int r_type, r_indx;
2916 enum elf32_hppa_stub_type stub_type;
875c0872 2917 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2918 asection *sym_sec;
2919 bfd_vma sym_value;
2920 bfd_vma destination;
875c0872 2921 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2922 char *stub_name;
25f72752 2923 const asection *id_sec;
30667bf3
AM
2924
2925 r_type = ELF32_R_TYPE (irela->r_info);
2926 r_indx = ELF32_R_SYM (irela->r_info);
2927
2928 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2929 {
2930 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2931 error_ret_free_internal:
2932 if (elf_section_data (section)->relocs == NULL)
2933 free (internal_relocs);
2934 goto error_ret_free_local;
30667bf3
AM
2935 }
2936
2937 /* Only look for stubs on call instructions. */
2938 if (r_type != (unsigned int) R_PARISC_PCREL12F
2939 && r_type != (unsigned int) R_PARISC_PCREL17F
2940 && r_type != (unsigned int) R_PARISC_PCREL22F)
2941 continue;
2942
2943 /* Now determine the call target, its name, value,
2944 section. */
2945 sym_sec = NULL;
2946 sym_value = 0;
2947 destination = 0;
875c0872 2948 hh = NULL;
30667bf3
AM
2949 if (r_indx < symtab_hdr->sh_info)
2950 {
2951 /* It's a local symbol. */
2952 Elf_Internal_Sym *sym;
2953 Elf_Internal_Shdr *hdr;
4fbb74a6 2954 unsigned int shndx;
30667bf3
AM
2955
2956 sym = local_syms + r_indx;
30667bf3
AM
2957 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2958 sym_value = sym->st_value;
4fbb74a6
AM
2959 shndx = sym->st_shndx;
2960 if (shndx < elf_numsections (input_bfd))
2961 {
2962 hdr = elf_elfsections (input_bfd)[shndx];
2963 sym_sec = hdr->bfd_section;
2964 destination = (sym_value + irela->r_addend
2965 + sym_sec->output_offset
2966 + sym_sec->output_section->vma);
2967 }
30667bf3
AM
2968 }
2969 else
2970 {
2971 /* It's an external symbol. */
2972 int e_indx;
2973
2974 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2975 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2976
a63e02c7
DA
2977 while (hh->eh.root.type == bfd_link_hash_indirect
2978 || hh->eh.root.type == bfd_link_hash_warning)
2979 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2980
a63e02c7
DA
2981 if (hh->eh.root.type == bfd_link_hash_defined
2982 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2983 {
a63e02c7
DA
2984 sym_sec = hh->eh.root.u.def.section;
2985 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2986 if (sym_sec->output_section != NULL)
2987 destination = (sym_value + irela->r_addend
2988 + sym_sec->output_offset
2989 + sym_sec->output_section->vma);
2990 }
a63e02c7 2991 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
2992 {
2993 if (! info->shared)
2994 continue;
2995 }
a63e02c7 2996 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2997 {
59c2e50f 2998 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2999 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3000 == STV_DEFAULT)
a63e02c7 3001 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3002 continue;
3003 }
30667bf3
AM
3004 else
3005 {
3006 bfd_set_error (bfd_error_bad_value);
3007 goto error_ret_free_internal;
3008 }
3009 }
3010
3011 /* Determine what (if any) linker stub is needed. */
875c0872 3012 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3013 destination, info);
30667bf3
AM
3014 if (stub_type == hppa_stub_none)
3015 continue;
3016
25f72752 3017 /* Support for grouping stub sections. */
83c81bfe 3018 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3019
30667bf3 3020 /* Get the name of this stub. */
875c0872 3021 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3022 if (!stub_name)
3023 goto error_ret_free_internal;
3024
a63e02c7 3025 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3026 stub_name,
b34976b6 3027 FALSE, FALSE);
875c0872 3028 if (hsh != NULL)
30667bf3
AM
3029 {
3030 /* The proper stub has already been created. */
3031 free (stub_name);
3032 continue;
3033 }
3034
875c0872
DA
3035 hsh = hppa_add_stub (stub_name, section, htab);
3036 if (hsh == NULL)
30667bf3
AM
3037 {
3038 free (stub_name);
1e2f5b6e 3039 goto error_ret_free_internal;
30667bf3
AM
3040 }
3041
875c0872
DA
3042 hsh->target_value = sym_value;
3043 hsh->target_section = sym_sec;
3044 hsh->stub_type = stub_type;
30667bf3
AM
3045 if (info->shared)
3046 {
3047 if (stub_type == hppa_stub_import)
875c0872 3048 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3049 else if (stub_type == hppa_stub_long_branch)
875c0872 3050 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3051 }
a63e02c7 3052 hsh->hh = hh;
b34976b6 3053 stub_changed = TRUE;
30667bf3
AM
3054 }
3055
3056 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3057 if (elf_section_data (section)->relocs == NULL)
3058 free (internal_relocs);
30667bf3
AM
3059 }
3060 }
3061
3062 if (!stub_changed)
3063 break;
3064
3065 /* OK, we've added some stubs. Find out the new size of the
3066 stub sections. */
83c81bfe 3067 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3068 stub_sec != NULL;
3069 stub_sec = stub_sec->next)
eea6121a 3070 stub_sec->size = 0;
74d1c347 3071
a63e02c7 3072 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3073
30667bf3 3074 /* Ask the linker to do its stuff. */
83c81bfe 3075 (*htab->layout_sections_again) ();
b34976b6 3076 stub_changed = FALSE;
30667bf3
AM
3077 }
3078
6cdc0ccc 3079 free (htab->all_local_syms);
b34976b6 3080 return TRUE;
30667bf3
AM
3081
3082 error_ret_free_local:
b4655ea9 3083 free (htab->all_local_syms);
b34976b6 3084 return FALSE;
30667bf3
AM
3085}
3086
30667bf3
AM
3087/* For a final link, this function is called after we have sized the
3088 stubs to provide a value for __gp. */
3089
b34976b6 3090bfd_boolean
c39a58e6 3091elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3092{
b4655ea9
AM
3093 struct bfd_link_hash_entry *h;
3094 asection *sec = NULL;
3095 bfd_vma gp_val = 0;
83c81bfe 3096 struct elf32_hppa_link_hash_table *htab;
30667bf3 3097
83c81bfe 3098 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3099 if (htab == NULL)
3100 return FALSE;
3101
a63e02c7 3102 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3103
df8634e3 3104 if (h != NULL
b4655ea9
AM
3105 && (h->type == bfd_link_hash_defined
3106 || h->type == bfd_link_hash_defweak))
30667bf3 3107 {
b4655ea9
AM
3108 gp_val = h->u.def.value;
3109 sec = h->u.def.section;
30667bf3
AM
3110 }
3111 else
3112 {
0eddce27
AM
3113 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3114 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3115
74d1c347
AM
3116 /* Choose to point our LTP at, in this order, one of .plt, .got,
3117 or .data, if these sections exist. In the case of choosing
3118 .plt try to make the LTP ideal for addressing anywhere in the
3119 .plt or .got with a 14 bit signed offset. Typically, the end
3120 of the .plt is the start of the .got, so choose .plt + 0x2000
3121 if either the .plt or .got is larger than 0x2000. If both
3122 the .plt and .got are smaller than 0x2000, choose the end of
3123 the .plt section. */
225247f0
JT
3124 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3125 ? NULL : splt;
74d1c347 3126 if (sec != NULL)
30667bf3 3127 {
eea6121a
AM
3128 gp_val = sec->size;
3129 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3130 {
3131 gp_val = 0x2000;
3132 }
3133 }
3134 else
3135 {
b4655ea9 3136 sec = sgot;
74d1c347
AM
3137 if (sec != NULL)
3138 {
225247f0
JT
3139 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3140 {
3141 /* We know we don't have a .plt. If .got is large,
3142 offset our LTP. */
3143 if (sec->size > 0x2000)
3144 gp_val = 0x2000;
3145 }
74d1c347
AM
3146 }
3147 else
3148 {
3149 /* No .plt or .got. Who cares what the LTP is? */
3150 sec = bfd_get_section_by_name (abfd, ".data");
3151 }
30667bf3 3152 }
df8634e3
AM
3153
3154 if (h != NULL)
3155 {
b4655ea9
AM
3156 h->type = bfd_link_hash_defined;
3157 h->u.def.value = gp_val;
df8634e3 3158 if (sec != NULL)
b4655ea9 3159 h->u.def.section = sec;
df8634e3 3160 else
b4655ea9 3161 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3162 }
30667bf3
AM
3163 }
3164
b32b5d6e 3165 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3166 gp_val += sec->output_section->vma + sec->output_offset;
3167
3168 elf_gp (abfd) = gp_val;
b34976b6 3169 return TRUE;
30667bf3
AM
3170}
3171
30667bf3
AM
3172/* Build all the stubs associated with the current output file. The
3173 stubs are kept in a hash table attached to the main linker hash
3174 table. We also set up the .plt entries for statically linked PIC
3175 functions here. This function is called via hppaelf_finish in the
3176 linker. */
3177
b34976b6 3178bfd_boolean
c39a58e6 3179elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3180{
3181 asection *stub_sec;
3182 struct bfd_hash_table *table;
83c81bfe 3183 struct elf32_hppa_link_hash_table *htab;
30667bf3 3184
83c81bfe 3185 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3186 if (htab == NULL)
3187 return FALSE;
30667bf3 3188
83c81bfe 3189 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3190 stub_sec != NULL;
3191 stub_sec = stub_sec->next)
3192 {
dc810e39 3193 bfd_size_type size;
30667bf3
AM
3194
3195 /* Allocate memory to hold the linker stubs. */
eea6121a 3196 size = stub_sec->size;
c39a58e6 3197 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3198 if (stub_sec->contents == NULL && size != 0)
b34976b6 3199 return FALSE;
eea6121a 3200 stub_sec->size = 0;
30667bf3
AM
3201 }
3202
3203 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3204 table = &htab->bstab;
30667bf3
AM
3205 bfd_hash_traverse (table, hppa_build_one_stub, info);
3206
b34976b6 3207 return TRUE;
30667bf3
AM
3208}
3209
9b52905e 3210/* Return the base vma address which should be subtracted from the real
68ffbac6 3211 address when resolving a dtpoff relocation.
9b52905e
NC
3212 This is PT_TLS segment p_vaddr. */
3213
3214static bfd_vma
3215dtpoff_base (struct bfd_link_info *info)
3216{
3217 /* If tls_sec is NULL, we should have signalled an error already. */
3218 if (elf_hash_table (info)->tls_sec == NULL)
3219 return 0;
3220 return elf_hash_table (info)->tls_sec->vma;
3221}
3222
3223/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3224
3225static bfd_vma
3226tpoff (struct bfd_link_info *info, bfd_vma address)
3227{
3228 struct elf_link_hash_table *htab = elf_hash_table (info);
3229
3230 /* If tls_sec is NULL, we should have signalled an error already. */
3231 if (htab->tls_sec == NULL)
3232 return 0;
68ffbac6 3233 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3234 tcbhead structure which has 2 pointer fields. */
68ffbac6 3235 return (address - htab->tls_sec->vma
9b52905e
NC
3236 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3237}
3238
c46b7515
AM
3239/* Perform a final link. */
3240
b34976b6 3241static bfd_boolean
c39a58e6 3242elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3243{
4dc86686 3244 /* Invoke the regular ELF linker to do all the work. */
c152c796 3245 if (!bfd_elf_final_link (abfd, info))
b34976b6 3246 return FALSE;
c46b7515
AM
3247
3248 /* If we're producing a final executable, sort the contents of the
985142a4 3249 unwind section. */
d9f40817
DA
3250 if (info->relocatable)
3251 return TRUE;
3252
46fe4e66 3253 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3254}
3255
3256/* Record the lowest address for the data and text segments. */
3257
3258static void
2ea37f1c 3259hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3260{
83c81bfe 3261 struct elf32_hppa_link_hash_table *htab;
c46b7515 3262
875c0872 3263 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3264 if (htab == NULL)
3265 return;
c46b7515
AM
3266
3267 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3268 {
2ea37f1c
NC
3269 bfd_vma value;
3270 Elf_Internal_Phdr *p;
3271
3272 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3273 BFD_ASSERT (p != NULL);
3274 value = p->p_vaddr;
c46b7515
AM
3275
3276 if ((section->flags & SEC_READONLY) != 0)
3277 {
83c81bfe
AM
3278 if (value < htab->text_segment_base)
3279 htab->text_segment_base = value;
c46b7515
AM
3280 }
3281 else
3282 {
83c81bfe
AM
3283 if (value < htab->data_segment_base)
3284 htab->data_segment_base = value;
c46b7515
AM
3285 }
3286 }
3287}
3288
30667bf3
AM
3289/* Perform a relocation as part of a final link. */
3290
3291static bfd_reloc_status_type
c39a58e6
AM
3292final_link_relocate (asection *input_section,
3293 bfd_byte *contents,
875c0872 3294 const Elf_Internal_Rela *rela,
c39a58e6
AM
3295 bfd_vma value,
3296 struct elf32_hppa_link_hash_table *htab,
3297 asection *sym_sec,
875c0872 3298 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3299 struct bfd_link_info *info)
30667bf3
AM
3300{
3301 int insn;
875c0872 3302 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3303 unsigned int orig_r_type = r_type;
30667bf3
AM
3304 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3305 int r_format = howto->bitsize;
3306 enum hppa_reloc_field_selector_type_alt r_field;
3307 bfd *input_bfd = input_section->owner;
875c0872 3308 bfd_vma offset = rela->r_offset;
30667bf3
AM
3309 bfd_vma max_branch_offset = 0;
3310 bfd_byte *hit_data = contents + offset;
875c0872 3311 bfd_signed_vma addend = rela->r_addend;
30667bf3 3312 bfd_vma location;
875c0872 3313 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3314 int val;
30667bf3
AM
3315
3316 if (r_type == R_PARISC_NONE)
3317 return bfd_reloc_ok;
3318
3319 insn = bfd_get_32 (input_bfd, hit_data);
3320
3321 /* Find out where we are and where we're going. */
3322 location = (offset +
3323 input_section->output_offset +
3324 input_section->output_section->vma);
3325
a252afa4
DA
3326 /* If we are not building a shared library, convert DLTIND relocs to
3327 DPREL relocs. */
3328 if (!info->shared)
3329 {
3330 switch (r_type)
4fc8051d
AM
3331 {
3332 case R_PARISC_DLTIND21L:
143bb599
DA
3333 case R_PARISC_TLS_GD21L:
3334 case R_PARISC_TLS_LDM21L:
3335 case R_PARISC_TLS_IE21L:
4fc8051d 3336 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3337 break;
3338
4fc8051d 3339 case R_PARISC_DLTIND14R:
143bb599
DA
3340 case R_PARISC_TLS_GD14R:
3341 case R_PARISC_TLS_LDM14R:
3342 case R_PARISC_TLS_IE14R:
4fc8051d 3343 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3344 break;
3345
4fc8051d
AM
3346 case R_PARISC_DLTIND14F:
3347 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3348 break;
3349 }
3350 }
3351
30667bf3
AM
3352 switch (r_type)
3353 {
3354 case R_PARISC_PCREL12F:
3355 case R_PARISC_PCREL17F:
3356 case R_PARISC_PCREL22F:
067fa4a6
AM
3357 /* If this call should go via the plt, find the import stub in
3358 the stub hash. */
30667bf3
AM
3359 if (sym_sec == NULL
3360 || sym_sec->output_section == NULL
875c0872 3361 || (hh != NULL
a63e02c7
DA
3362 && hh->eh.plt.offset != (bfd_vma) -1
3363 && hh->eh.dynindx != -1
875c0872 3364 && !hh->plabel
a252afa4 3365 && (info->shared
a63e02c7
DA
3366 || !hh->eh.def_regular
3367 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3368 {
875c0872
DA
3369 hsh = hppa_get_stub_entry (input_section, sym_sec,
3370 hh, rela, htab);
3371 if (hsh != NULL)
30667bf3 3372 {
875c0872
DA
3373 value = (hsh->stub_offset
3374 + hsh->stub_sec->output_offset
3375 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3376 addend = 0;
3377 }
875c0872 3378 else if (sym_sec == NULL && hh != NULL
a63e02c7 3379 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3380 {
db20fd76
AM
3381 /* It's OK if undefined weak. Calls to undefined weak
3382 symbols behave as if the "called" function
3383 immediately returns. We can thus call to a weak
3384 function without first checking whether the function
3385 is defined. */
30667bf3 3386 value = location;
db20fd76 3387 addend = 8;
30667bf3
AM
3388 }
3389 else
f09ebc7d 3390 return bfd_reloc_undefined;
30667bf3
AM
3391 }
3392 /* Fall thru. */
3393
3394 case R_PARISC_PCREL21L:
3395 case R_PARISC_PCREL17C:
3396 case R_PARISC_PCREL17R:
3397 case R_PARISC_PCREL14R:
3398 case R_PARISC_PCREL14F:
36751eee 3399 case R_PARISC_PCREL32:
30667bf3
AM
3400 /* Make it a pc relative offset. */
3401 value -= location;
3402 addend -= 8;
3403 break;
3404
3405 case R_PARISC_DPREL21L:
3406 case R_PARISC_DPREL14R:
3407 case R_PARISC_DPREL14F:
a252afa4
DA
3408 /* Convert instructions that use the linkage table pointer (r19) to
3409 instructions that use the global data pointer (dp). This is the
3410 most efficient way of using PIC code in an incomplete executable,
3411 but the user must follow the standard runtime conventions for
3412 accessing data for this to work. */
143bb599 3413 if (orig_r_type != r_type)
a252afa4 3414 {
143bb599
DA
3415 if (r_type == R_PARISC_DPREL21L)
3416 {
3417 /* GCC sometimes uses a register other than r19 for the
3418 operation, so we must convert any addil instruction
3419 that uses this relocation. */
3420 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3421 insn = ADDIL_DP;
3422 else
3423 /* We must have a ldil instruction. It's too hard to find
3424 and convert the associated add instruction, so issue an
3425 error. */
3426 (*_bfd_error_handler)
3427 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3428 input_bfd,
3429 input_section,
3430 (long) offset,
3431 howto->name,
3432 insn);
3433 }
3434 else if (r_type == R_PARISC_DPREL14F)
3435 {
3436 /* This must be a format 1 load/store. Change the base
3437 register to dp. */
3438 insn = (insn & 0xfc1ffff) | (27 << 21);
3439 }
a252afa4
DA
3440 }
3441
143bb599
DA
3442 /* For all the DP relative relocations, we need to examine the symbol's
3443 section. If it has no section or if it's a code section, then
3444 "data pointer relative" makes no sense. In that case we don't
3445 adjust the "value", and for 21 bit addil instructions, we change the
3446 source addend register from %dp to %r0. This situation commonly
3447 arises for undefined weak symbols and when a variable's "constness"
3448 is declared differently from the way the variable is defined. For
3449 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3450 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3451 {
3452 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3453 == (((int) OP_ADDIL << 26) | (27 << 21)))
3454 {
3455 insn &= ~ (0x1f << 21);
30667bf3
AM
3456 }
3457 /* Now try to make things easy for the dynamic linker. */
3458
3459 break;
3460 }
74d1c347 3461 /* Fall thru. */
30667bf3
AM
3462
3463 case R_PARISC_DLTIND21L:
3464 case R_PARISC_DLTIND14R:
3465 case R_PARISC_DLTIND14F:
143bb599
DA
3466 case R_PARISC_TLS_GD21L:
3467 case R_PARISC_TLS_LDM21L:
3468 case R_PARISC_TLS_IE21L:
9b52905e 3469 case R_PARISC_TLS_GD14R:
9b52905e 3470 case R_PARISC_TLS_LDM14R:
9b52905e 3471 case R_PARISC_TLS_IE14R:
30667bf3
AM
3472 value -= elf_gp (input_section->output_section->owner);
3473 break;
3474
c46b7515
AM
3475 case R_PARISC_SEGREL32:
3476 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3477 value -= htab->text_segment_base;
c46b7515 3478 else
83c81bfe 3479 value -= htab->data_segment_base;
c46b7515
AM
3480 break;
3481
30667bf3
AM
3482 default:
3483 break;
3484 }
3485
3486 switch (r_type)
3487 {
3488 case R_PARISC_DIR32:
47d89dba 3489 case R_PARISC_DIR14F:
30667bf3
AM
3490 case R_PARISC_DIR17F:
3491 case R_PARISC_PCREL17C:
3492 case R_PARISC_PCREL14F:
36751eee 3493 case R_PARISC_PCREL32:
30667bf3
AM
3494 case R_PARISC_DPREL14F:
3495 case R_PARISC_PLABEL32:
3496 case R_PARISC_DLTIND14F:
3497 case R_PARISC_SEGBASE:
3498 case R_PARISC_SEGREL32:
9b52905e
NC
3499 case R_PARISC_TLS_DTPMOD32:
3500 case R_PARISC_TLS_DTPOFF32:
3501 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3502 r_field = e_fsel;
3503 break;
3504
1bf42538 3505 case R_PARISC_DLTIND21L:
30667bf3 3506 case R_PARISC_PCREL21L:
30667bf3 3507 case R_PARISC_PLABEL21L:
1bf42538
JL
3508 r_field = e_lsel;
3509 break;
3510
3511 case R_PARISC_DIR21L:
3512 case R_PARISC_DPREL21L:
9b52905e
NC
3513 case R_PARISC_TLS_GD21L:
3514 case R_PARISC_TLS_LDM21L:
3515 case R_PARISC_TLS_LDO21L:
3516 case R_PARISC_TLS_IE21L:
3517 case R_PARISC_TLS_LE21L:
30667bf3
AM
3518 r_field = e_lrsel;
3519 break;
3520
30667bf3 3521 case R_PARISC_PCREL17R:
30667bf3 3522 case R_PARISC_PCREL14R:
30667bf3
AM
3523 case R_PARISC_PLABEL14R:
3524 case R_PARISC_DLTIND14R:
1bf42538
JL
3525 r_field = e_rsel;
3526 break;
3527
3528 case R_PARISC_DIR17R:
3529 case R_PARISC_DIR14R:
3530 case R_PARISC_DPREL14R:
9b52905e
NC
3531 case R_PARISC_TLS_GD14R:
3532 case R_PARISC_TLS_LDM14R:
3533 case R_PARISC_TLS_LDO14R:
3534 case R_PARISC_TLS_IE14R:
3535 case R_PARISC_TLS_LE14R:
30667bf3
AM
3536 r_field = e_rrsel;
3537 break;
3538
3539 case R_PARISC_PCREL12F:
3540 case R_PARISC_PCREL17F:
3541 case R_PARISC_PCREL22F:
3542 r_field = e_fsel;
3543
3544 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3545 {
3546 max_branch_offset = (1 << (17-1)) << 2;
3547 }
3548 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3549 {
3550 max_branch_offset = (1 << (12-1)) << 2;
3551 }
3552 else
3553 {
3554 max_branch_offset = (1 << (22-1)) << 2;
3555 }
3556
3557 /* sym_sec is NULL on undefined weak syms or when shared on
3558 undefined syms. We've already checked for a stub for the
3559 shared undefined case. */
3560 if (sym_sec == NULL)
3561 break;
3562
3563 /* If the branch is out of reach, then redirect the
3564 call to the local stub for this function. */
3565 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3566 {
875c0872
DA
3567 hsh = hppa_get_stub_entry (input_section, sym_sec,
3568 hh, rela, htab);
3569 if (hsh == NULL)
f09ebc7d 3570 return bfd_reloc_undefined;
30667bf3
AM
3571
3572 /* Munge up the value and addend so that we call the stub
3573 rather than the procedure directly. */
875c0872
DA
3574 value = (hsh->stub_offset
3575 + hsh->stub_sec->output_offset
3576 + hsh->stub_sec->output_section->vma
30667bf3
AM
3577 - location);
3578 addend = -8;
3579 }
3580 break;
3581
3582 /* Something we don't know how to handle. */
3583 default:
3584 return bfd_reloc_notsupported;
3585 }
3586
3587 /* Make sure we can reach the stub. */
3588 if (max_branch_offset != 0
3589 && value + addend + max_branch_offset >= 2*max_branch_offset)
3590 {
3591 (*_bfd_error_handler)
d003868e
AM
3592 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3593 input_bfd,
3594 input_section,
d1fa68d3 3595 (long) offset,
a63e02c7 3596 hsh->bh_root.string);
ce757d15 3597 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3598 return bfd_reloc_notsupported;
3599 }
3600
3601 val = hppa_field_adjust (value, addend, r_field);
3602
3603 switch (r_type)
3604 {
3605 case R_PARISC_PCREL12F:
3606 case R_PARISC_PCREL17C:
3607 case R_PARISC_PCREL17F:
3608 case R_PARISC_PCREL17R:
3609 case R_PARISC_PCREL22F:
3610 case R_PARISC_DIR17F:
3611 case R_PARISC_DIR17R:
3612 /* This is a branch. Divide the offset by four.
3613 Note that we need to decide whether it's a branch or
3614 otherwise by inspecting the reloc. Inspecting insn won't
3615 work as insn might be from a .word directive. */
3616 val >>= 2;
3617 break;
3618
3619 default:
3620 break;
3621 }
3622
3623 insn = hppa_rebuild_insn (insn, val, r_format);
3624
3625 /* Update the instruction word. */
74d1c347 3626 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3627 return bfd_reloc_ok;
3628}
3629
30667bf3
AM
3630/* Relocate an HPPA ELF section. */
3631
b34976b6 3632static bfd_boolean
c39a58e6
AM
3633elf32_hppa_relocate_section (bfd *output_bfd,
3634 struct bfd_link_info *info,
3635 bfd *input_bfd,
3636 asection *input_section,
3637 bfd_byte *contents,
3638 Elf_Internal_Rela *relocs,
3639 Elf_Internal_Sym *local_syms,
3640 asection **local_sections)
30667bf3 3641{
30667bf3 3642 bfd_vma *local_got_offsets;
83c81bfe 3643 struct elf32_hppa_link_hash_table *htab;
30667bf3 3644 Elf_Internal_Shdr *symtab_hdr;
875c0872 3645 Elf_Internal_Rela *rela;
30667bf3 3646 Elf_Internal_Rela *relend;
30667bf3
AM
3647
3648 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3649
83c81bfe 3650 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3651 if (htab == NULL)
3652 return FALSE;
3653
74d1c347 3654 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3655
875c0872 3656 rela = relocs;
30667bf3 3657 relend = relocs + input_section->reloc_count;
875c0872 3658 for (; rela < relend; rela++)
30667bf3
AM
3659 {
3660 unsigned int r_type;
3661 reloc_howto_type *howto;
3662 unsigned int r_symndx;
875c0872 3663 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3664 Elf_Internal_Sym *sym;
3665 asection *sym_sec;
3666 bfd_vma relocation;
875c0872 3667 bfd_reloc_status_type rstatus;
30667bf3 3668 const char *sym_name;
b34976b6
AM
3669 bfd_boolean plabel;
3670 bfd_boolean warned_undef;
30667bf3 3671
875c0872 3672 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3673 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3674 {
3675 bfd_set_error (bfd_error_bad_value);
b34976b6 3676 return FALSE;
30667bf3
AM
3677 }
3678 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3679 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3680 continue;
3681
875c0872
DA
3682 r_symndx = ELF32_R_SYM (rela->r_info);
3683 hh = NULL;
30667bf3
AM
3684 sym = NULL;
3685 sym_sec = NULL;
b34976b6 3686 warned_undef = FALSE;
30667bf3
AM
3687 if (r_symndx < symtab_hdr->sh_info)
3688 {
3689 /* This is a local symbol, h defaults to NULL. */
3690 sym = local_syms + r_symndx;
3691 sym_sec = local_sections[r_symndx];
875c0872 3692 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3693 }
3694 else
3695 {
875c0872 3696 struct elf_link_hash_entry *eh;
62d887d4 3697 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3698 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3699
875c0872 3700 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3701 r_symndx, symtab_hdr, sym_hashes,
875c0872 3702 eh, sym_sec, relocation,
62d887d4
L
3703 unresolved_reloc, warned_undef,
3704 ignored);
560e09e9 3705
ab96bf03
AM
3706 if (!info->relocatable
3707 && relocation == 0
875c0872
DA
3708 && eh->root.type != bfd_link_hash_defined
3709 && eh->root.type != bfd_link_hash_defweak
3710 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3711 {
59c2e50f 3712 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3713 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3714 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3715 {
3716 if (! info->callbacks->undefined_symbol
9b52905e 3717 (info, eh_name (eh), input_bfd,
875c0872 3718 input_section, rela->r_offset, FALSE))
560e09e9
NC
3719 return FALSE;
3720 warned_undef = TRUE;
3721 }
30667bf3 3722 }
875c0872 3723 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3724 }
3725
dbaa2011 3726 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3727 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3728 rela, 1, relend,
3729 elf_hppa_howto_table + r_type, 0,
e4067dbb 3730 contents);
ab96bf03
AM
3731
3732 if (info->relocatable)
3733 continue;
3734
30667bf3 3735 /* Do any required modifications to the relocation value, and
25f72752
AM
3736 determine what types of dynamic info we need to output, if
3737 any. */
74d1c347 3738 plabel = 0;
30667bf3
AM
3739 switch (r_type)
3740 {
3741 case R_PARISC_DLTIND14F:
3742 case R_PARISC_DLTIND14R:
3743 case R_PARISC_DLTIND21L:
ce757d15
AM
3744 {
3745 bfd_vma off;
b34976b6 3746 bfd_boolean do_got = 0;
ce757d15
AM
3747
3748 /* Relocation is to the entry for this symbol in the
3749 global offset table. */
875c0872 3750 if (hh != NULL)
ce757d15 3751 {
b34976b6 3752 bfd_boolean dyn;
ce757d15 3753
a63e02c7
DA
3754 off = hh->eh.got.offset;
3755 dyn = htab->etab.dynamic_sections_created;
c152c796 3756 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3757 &hh->eh))
ce757d15
AM
3758 {
3759 /* If we aren't going to call finish_dynamic_symbol,
3760 then we need to handle initialisation of the .got
3761 entry and create needed relocs here. Since the
3762 offset must always be a multiple of 4, we use the
3763 least significant bit to record whether we have
3764 initialised it already. */
3765 if ((off & 1) != 0)
3766 off &= ~1;
3767 else
3768 {
a63e02c7 3769 hh->eh.got.offset |= 1;
ce757d15
AM
3770 do_got = 1;
3771 }
3772 }
3773 }
3774 else
3775 {
3776 /* Local symbol case. */
3777 if (local_got_offsets == NULL)
3778 abort ();
3779
3780 off = local_got_offsets[r_symndx];
3781
3782 /* The offset must always be a multiple of 4. We use
3783 the least significant bit to record whether we have
3784 already generated the necessary reloc. */
3785 if ((off & 1) != 0)
3786 off &= ~1;
3787 else
3788 {
3789 local_got_offsets[r_symndx] |= 1;
3790 do_got = 1;
3791 }
3792 }
68fb2e56 3793
ce757d15
AM
3794 if (do_got)
3795 {
3796 if (info->shared)
3797 {
3798 /* Output a dynamic relocation for this GOT entry.
3799 In this case it is relative to the base of the
3800 object because the symbol index is zero. */
3801 Elf_Internal_Rela outrel;
947216bf 3802 bfd_byte *loc;
875c0872 3803 asection *sec = htab->srelgot;
ce757d15
AM
3804
3805 outrel.r_offset = (off
3806 + htab->sgot->output_offset
3807 + htab->sgot->output_section->vma);
3808 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3809 outrel.r_addend = relocation;
875c0872
DA
3810 loc = sec->contents;
3811 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3812 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3813 }
3814 else
30667bf3 3815 bfd_put_32 (output_bfd, relocation,
83c81bfe 3816 htab->sgot->contents + off);
ce757d15 3817 }
30667bf3 3818
ce757d15
AM
3819 if (off >= (bfd_vma) -2)
3820 abort ();
30667bf3 3821
ce757d15
AM
3822 /* Add the base of the GOT to the relocation value. */
3823 relocation = (off
3824 + htab->sgot->output_offset
3825 + htab->sgot->output_section->vma);
3826 }
30667bf3 3827 break;
252b5132 3828
c46b7515
AM
3829 case R_PARISC_SEGREL32:
3830 /* If this is the first SEGREL relocation, then initialize
3831 the segment base values. */
83c81bfe
AM
3832 if (htab->text_segment_base == (bfd_vma) -1)
3833 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3834 break;
3835
30667bf3
AM
3836 case R_PARISC_PLABEL14R:
3837 case R_PARISC_PLABEL21L:
3838 case R_PARISC_PLABEL32:
a63e02c7 3839 if (htab->etab.dynamic_sections_created)
252b5132 3840 {
ce757d15 3841 bfd_vma off;
b34976b6 3842 bfd_boolean do_plt = 0;
74d1c347
AM
3843 /* If we have a global symbol with a PLT slot, then
3844 redirect this relocation to it. */
875c0872 3845 if (hh != NULL)
74d1c347 3846 {
a63e02c7 3847 off = hh->eh.plt.offset;
c152c796 3848 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3849 &hh->eh))
8dea1268
AM
3850 {
3851 /* In a non-shared link, adjust_dynamic_symbols
3852 isn't called for symbols forced local. We
dc810e39 3853 need to write out the plt entry here. */
8dea1268
AM
3854 if ((off & 1) != 0)
3855 off &= ~1;
3856 else
3857 {
a63e02c7 3858 hh->eh.plt.offset |= 1;
ce757d15 3859 do_plt = 1;
8dea1268
AM
3860 }
3861 }
74d1c347
AM
3862 }
3863 else
3864 {
68fb2e56
AM
3865 bfd_vma *local_plt_offsets;
3866
3867 if (local_got_offsets == NULL)
3868 abort ();
74d1c347 3869
68fb2e56
AM
3870 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3871 off = local_plt_offsets[r_symndx];
74d1c347
AM
3872
3873 /* As for the local .got entry case, we use the last
3874 bit to record whether we've already initialised
3875 this local .plt entry. */
3876 if ((off & 1) != 0)
3877 off &= ~1;
ce757d15
AM
3878 else
3879 {
3880 local_plt_offsets[r_symndx] |= 1;
3881 do_plt = 1;
3882 }
3883 }
3884
3885 if (do_plt)
3886 {
3887 if (info->shared)
3888 {
3889 /* Output a dynamic IPLT relocation for this
3890 PLT entry. */
3891 Elf_Internal_Rela outrel;
947216bf
AM
3892 bfd_byte *loc;
3893 asection *s = htab->srelplt;
ce757d15
AM
3894
3895 outrel.r_offset = (off
3896 + htab->splt->output_offset
3897 + htab->splt->output_section->vma);
3898 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3899 outrel.r_addend = relocation;
947216bf
AM
3900 loc = s->contents;
3901 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3902 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3903 }
74d1c347
AM
3904 else
3905 {
3906 bfd_put_32 (output_bfd,
3907 relocation,
83c81bfe 3908 htab->splt->contents + off);
74d1c347 3909 bfd_put_32 (output_bfd,
83c81bfe
AM
3910 elf_gp (htab->splt->output_section->owner),
3911 htab->splt->contents + off + 4);
74d1c347
AM
3912 }
3913 }
3914
68fb2e56 3915 if (off >= (bfd_vma) -2)
49e9d0d3 3916 abort ();
74d1c347
AM
3917
3918 /* PLABELs contain function pointers. Relocation is to
3919 the entry for the function in the .plt. The magic +2
3920 offset signals to $$dyncall that the function pointer
3921 is in the .plt and thus has a gp pointer too.
3922 Exception: Undefined PLABELs should have a value of
3923 zero. */
875c0872 3924 if (hh == NULL
a63e02c7
DA
3925 || (hh->eh.root.type != bfd_link_hash_undefweak
3926 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3927 {
3928 relocation = (off
83c81bfe
AM
3929 + htab->splt->output_offset
3930 + htab->splt->output_section->vma
74d1c347
AM
3931 + 2);
3932 }
3933 plabel = 1;
30667bf3
AM
3934 }
3935 /* Fall through and possibly emit a dynamic relocation. */
3936
3937 case R_PARISC_DIR17F:
3938 case R_PARISC_DIR17R:
47d89dba 3939 case R_PARISC_DIR14F:
30667bf3
AM
3940 case R_PARISC_DIR14R:
3941 case R_PARISC_DIR21L:
3942 case R_PARISC_DPREL14F:
3943 case R_PARISC_DPREL14R:
3944 case R_PARISC_DPREL21L:
3945 case R_PARISC_DIR32:
b1e24c02 3946 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3947 break;
3948
30667bf3 3949 /* The reloc types handled here and this conditional
56882138 3950 expression must match the code in ..check_relocs and
ec338859 3951 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3952 as in ..check_relocs, with some extra conditions (dynindx
3953 test in this case) to cater for relocs removed by
ec338859 3954 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3955 here does indeed match the one in ..check_relocs, the
3956 difference being that here we test DEF_DYNAMIC as well as
3957 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3958 which is why we can't use just that test here.
3959 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3960 there all files have not been loaded. */
446f2863 3961 if ((info->shared
875c0872 3962 && (hh == NULL
a63e02c7
DA
3963 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3964 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3965 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3966 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3967 || (!info->shared
875c0872 3968 && hh != NULL
a63e02c7
DA
3969 && hh->eh.dynindx != -1
3970 && !hh->eh.non_got_ref
4fc8051d 3971 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3972 && hh->eh.def_dynamic
3973 && !hh->eh.def_regular)
3974 || hh->eh.root.type == bfd_link_hash_undefweak
3975 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3976 {
3977 Elf_Internal_Rela outrel;
b34976b6 3978 bfd_boolean skip;
98ceb8ce 3979 asection *sreloc;
947216bf 3980 bfd_byte *loc;
252b5132 3981
30667bf3
AM
3982 /* When generating a shared object, these relocations
3983 are copied into the output file to be resolved at run
3984 time. */
252b5132 3985
875c0872 3986 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3987 outrel.r_offset =
3988 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3989 rela->r_offset);
0bb2d96a
JJ
3990 skip = (outrel.r_offset == (bfd_vma) -1
3991 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3992 outrel.r_offset += (input_section->output_offset
3993 + input_section->output_section->vma);
68ffbac6 3994
30667bf3 3995 if (skip)
252b5132 3996 {
30667bf3 3997 memset (&outrel, 0, sizeof (outrel));
252b5132 3998 }
875c0872 3999 else if (hh != NULL
a63e02c7 4000 && hh->eh.dynindx != -1
74d1c347 4001 && (plabel
446f2863
AM
4002 || !IS_ABSOLUTE_RELOC (r_type)
4003 || !info->shared
74d1c347 4004 || !info->symbolic
a63e02c7 4005 || !hh->eh.def_regular))
252b5132 4006 {
a63e02c7 4007 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4008 }
4009 else /* It's a local symbol, or one marked to become local. */
4010 {
4011 int indx = 0;
edd21aca 4012
30667bf3
AM
4013 /* Add the absolute offset of the symbol. */
4014 outrel.r_addend += relocation;
edd21aca 4015
74d1c347
AM
4016 /* Global plabels need to be processed by the
4017 dynamic linker so that functions have at most one
4018 fptr. For this reason, we need to differentiate
4019 between global and local plabels, which we do by
4020 providing the function symbol for a global plabel
4021 reloc, and no symbol for local plabels. */
4022 if (! plabel
4023 && sym_sec != NULL
30667bf3
AM
4024 && sym_sec->output_section != NULL
4025 && ! bfd_is_abs_section (sym_sec))
252b5132 4026 {
74541ad4
AM
4027 asection *osec;
4028
4029 osec = sym_sec->output_section;
4030 indx = elf_section_data (osec)->dynindx;
4031 if (indx == 0)
4032 {
4033 osec = htab->etab.text_index_section;
4034 indx = elf_section_data (osec)->dynindx;
4035 }
4036 BFD_ASSERT (indx != 0);
4b71bec0 4037
30667bf3
AM
4038 /* We are turning this relocation into one
4039 against a section symbol, so subtract out the
4040 output section's address but not the offset
4041 of the input section in the output section. */
74541ad4 4042 outrel.r_addend -= osec->vma;
252b5132 4043 }
252b5132 4044
30667bf3
AM
4045 outrel.r_info = ELF32_R_INFO (indx, r_type);
4046 }
98ceb8ce
AM
4047 sreloc = elf_section_data (input_section)->sreloc;
4048 if (sreloc == NULL)
4049 abort ();
4050
947216bf
AM
4051 loc = sreloc->contents;
4052 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4053 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4054 }
4055 break;
68ffbac6 4056
9b52905e
NC
4057 case R_PARISC_TLS_LDM21L:
4058 case R_PARISC_TLS_LDM14R:
4059 {
4060 bfd_vma off;
68ffbac6 4061
9b52905e
NC
4062 off = htab->tls_ldm_got.offset;
4063 if (off & 1)
4064 off &= ~1;
4065 else
4066 {
4067 Elf_Internal_Rela outrel;
4068 bfd_byte *loc;
4069
68ffbac6 4070 outrel.r_offset = (off
9b52905e
NC
4071 + htab->sgot->output_section->vma
4072 + htab->sgot->output_offset);
4073 outrel.r_addend = 0;
4074 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
68ffbac6 4075 loc = htab->srelgot->contents;
9b52905e
NC
4076 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4077
4078 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4079 htab->tls_ldm_got.offset |= 1;
4080 }
4081
4082 /* Add the base of the GOT to the relocation value. */
4083 relocation = (off
4084 + htab->sgot->output_offset
4085 + htab->sgot->output_section->vma);
4086
4087 break;
4088 }
4089
4090 case R_PARISC_TLS_LDO21L:
4091 case R_PARISC_TLS_LDO14R:
4092 relocation -= dtpoff_base (info);
4093 break;
4094
4095 case R_PARISC_TLS_GD21L:
4096 case R_PARISC_TLS_GD14R:
4097 case R_PARISC_TLS_IE21L:
4098 case R_PARISC_TLS_IE14R:
4099 {
4100 bfd_vma off;
4101 int indx;
4102 char tls_type;
4103
4104 indx = 0;
4105 if (hh != NULL)
4106 {
4107 bfd_boolean dyn;
4108 dyn = htab->etab.dynamic_sections_created;
4109
4110 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4111 && (!info->shared
4112 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4113 {
4114 indx = hh->eh.dynindx;
4115 }
4116 off = hh->eh.got.offset;
4117 tls_type = hh->tls_type;
4118 }
4119 else
4120 {
4121 off = local_got_offsets[r_symndx];
4122 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4123 }
4124
4125 if (tls_type == GOT_UNKNOWN)
4126 abort ();
4127
4128 if ((off & 1) != 0)
4129 off &= ~1;
4130 else
4131 {
4132 bfd_boolean need_relocs = FALSE;
4133 Elf_Internal_Rela outrel;
4134 bfd_byte *loc = NULL;
4135 int cur_off = off;
4136
4137 /* The GOT entries have not been initialized yet. Do it
4138 now, and emit any relocations. If both an IE GOT and a
4139 GD GOT are necessary, we emit the GD first. */
4140
4141 if ((info->shared || indx != 0)
4142 && (hh == NULL
4143 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4144 || hh->eh.root.type != bfd_link_hash_undefweak))
4145 {
4146 need_relocs = TRUE;
68ffbac6 4147 loc = htab->srelgot->contents;
9b52905e
NC
4148 /* FIXME (CAO): Should this be reloc_count++ ? */
4149 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4150 }
4151
4152 if (tls_type & GOT_TLS_GD)
4153 {
4154 if (need_relocs)
4155 {
4156 outrel.r_offset = (cur_off
4157 + htab->sgot->output_section->vma
4158 + htab->sgot->output_offset);
4159 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4160 outrel.r_addend = 0;
4161 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4162 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4163 htab->srelgot->reloc_count++;
4164 loc += sizeof (Elf32_External_Rela);
4165
4166 if (indx == 0)
4167 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4168 htab->sgot->contents + cur_off + 4);
4169 else
4170 {
4171 bfd_put_32 (output_bfd, 0,
4172 htab->sgot->contents + cur_off + 4);
4173 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4174 outrel.r_offset += 4;
4175 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4176 htab->srelgot->reloc_count++;
4177 loc += sizeof (Elf32_External_Rela);
4178 }
4179 }
4180 else
4181 {
4182 /* If we are not emitting relocations for a
4183 general dynamic reference, then we must be in a
4184 static link or an executable link with the
4185 symbol binding locally. Mark it as belonging
4186 to module 1, the executable. */
4187 bfd_put_32 (output_bfd, 1,
4188 htab->sgot->contents + cur_off);
4189 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4190 htab->sgot->contents + cur_off + 4);
4191 }
4192
4193
4194 cur_off += 8;
4195 }
4196
4197 if (tls_type & GOT_TLS_IE)
4198 {
4199 if (need_relocs)
4200 {
4201 outrel.r_offset = (cur_off
4202 + htab->sgot->output_section->vma
4203 + htab->sgot->output_offset);
4204 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4205
4206 if (indx == 0)
4207 outrel.r_addend = relocation - dtpoff_base (info);
4208 else
4209 outrel.r_addend = 0;
4210
4211 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4212 htab->srelgot->reloc_count++;
4213 loc += sizeof (Elf32_External_Rela);
4214 }
4215 else
4216 bfd_put_32 (output_bfd, tpoff (info, relocation),
4217 htab->sgot->contents + cur_off);
4218
4219 cur_off += 4;
4220 }
4221
4222 if (hh != NULL)
4223 hh->eh.got.offset |= 1;
4224 else
4225 local_got_offsets[r_symndx] |= 1;
4226 }
4227
4228 if ((tls_type & GOT_TLS_GD)
4229 && r_type != R_PARISC_TLS_GD21L
4230 && r_type != R_PARISC_TLS_GD14R)
4231 off += 2 * GOT_ENTRY_SIZE;
4232
4233 /* Add the base of the GOT to the relocation value. */
4234 relocation = (off
4235 + htab->sgot->output_offset
4236 + htab->sgot->output_section->vma);
4237
4238 break;
4239 }
4240
4241 case R_PARISC_TLS_LE21L:
4242 case R_PARISC_TLS_LE14R:
4243 {
4244 relocation = tpoff (info, relocation);
4245 break;
4246 }
4247 break;
edd21aca 4248
30667bf3
AM
4249 default:
4250 break;
4251 }
252b5132 4252
875c0872
DA
4253 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4254 htab, sym_sec, hh, info);
252b5132 4255
875c0872 4256 if (rstatus == bfd_reloc_ok)
30667bf3 4257 continue;
252b5132 4258
875c0872 4259 if (hh != NULL)
9b52905e 4260 sym_name = hh_name (hh);
30667bf3
AM
4261 else
4262 {
4263 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4264 symtab_hdr->sh_link,
4265 sym->st_name);
4266 if (sym_name == NULL)
b34976b6 4267 return FALSE;
30667bf3
AM
4268 if (*sym_name == '\0')
4269 sym_name = bfd_section_name (input_bfd, sym_sec);
4270 }
edd21aca 4271
30667bf3 4272 howto = elf_hppa_howto_table + r_type;
252b5132 4273
875c0872 4274 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4275 {
875c0872 4276 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4277 {
4278 (*_bfd_error_handler)
d003868e
AM
4279 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4280 input_bfd,
4281 input_section,
875c0872 4282 (long) rela->r_offset,
f09ebc7d
AM
4283 howto->name,
4284 sym_name);
4285 bfd_set_error (bfd_error_bad_value);
b34976b6 4286 return FALSE;
f09ebc7d 4287 }
30667bf3
AM
4288 }
4289 else
4290 {
4291 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4292 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4293 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4294 return FALSE;
30667bf3
AM
4295 }
4296 }
edd21aca 4297
b34976b6 4298 return TRUE;
30667bf3 4299}
252b5132 4300
30667bf3
AM
4301/* Finish up dynamic symbol handling. We set the contents of various
4302 dynamic sections here. */
252b5132 4303
b34976b6 4304static bfd_boolean
c39a58e6
AM
4305elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4306 struct bfd_link_info *info,
875c0872 4307 struct elf_link_hash_entry *eh,
c39a58e6 4308 Elf_Internal_Sym *sym)
30667bf3 4309{
83c81bfe 4310 struct elf32_hppa_link_hash_table *htab;
875c0872 4311 Elf_Internal_Rela rela;
a252afa4 4312 bfd_byte *loc;
edd21aca 4313
83c81bfe 4314 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4315 if (htab == NULL)
4316 return FALSE;
30667bf3 4317
875c0872 4318 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4319 {
4320 bfd_vma value;
30667bf3 4321
875c0872 4322 if (eh->plt.offset & 1)
8dea1268
AM
4323 abort ();
4324
30667bf3
AM
4325 /* This symbol has an entry in the procedure linkage table. Set
4326 it up.
4327
4328 The format of a plt entry is
74d1c347
AM
4329 <funcaddr>
4330 <__gp>
47d89dba 4331 */
30667bf3 4332 value = 0;
875c0872
DA
4333 if (eh->root.type == bfd_link_hash_defined
4334 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4335 {
875c0872
DA
4336 value = eh->root.u.def.value;
4337 if (eh->root.u.def.section->output_section != NULL)
4338 value += (eh->root.u.def.section->output_offset
4339 + eh->root.u.def.section->output_section->vma);
252b5132 4340 }
edd21aca 4341
a252afa4 4342 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4343 rela.r_offset = (eh->plt.offset
a252afa4
DA
4344 + htab->splt->output_offset
4345 + htab->splt->output_section->vma);
875c0872 4346 if (eh->dynindx != -1)
30667bf3 4347 {
875c0872
DA
4348 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4349 rela.r_addend = 0;
30667bf3 4350 }
ce757d15 4351 else
47d89dba 4352 {
a252afa4
DA
4353 /* This symbol has been marked to become local, and is
4354 used by a plabel so must be kept in the .plt. */
875c0872
DA
4355 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4356 rela.r_addend = value;
47d89dba
AM
4357 }
4358
a252afa4
DA
4359 loc = htab->srelplt->contents;
4360 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4361 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4362
875c0872 4363 if (!eh->def_regular)
30667bf3
AM
4364 {
4365 /* Mark the symbol as undefined, rather than as defined in
4366 the .plt section. Leave the value alone. */
4367 sym->st_shndx = SHN_UNDEF;
4368 }
4369 }
edd21aca 4370
9b52905e
NC
4371 if (eh->got.offset != (bfd_vma) -1
4372 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4373 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4374 {
30667bf3
AM
4375 /* This symbol has an entry in the global offset table. Set it
4376 up. */
4377
875c0872 4378 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4379 + htab->sgot->output_offset
4380 + htab->sgot->output_section->vma);
30667bf3 4381
4dc86686
AM
4382 /* If this is a -Bsymbolic link and the symbol is defined
4383 locally or was forced to be local because of a version file,
4384 we just want to emit a RELATIVE reloc. The entry in the
4385 global offset table will already have been initialized in the
4386 relocate_section function. */
4387 if (info->shared
875c0872
DA
4388 && (info->symbolic || eh->dynindx == -1)
4389 && eh->def_regular)
30667bf3 4390 {
875c0872
DA
4391 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4392 rela.r_addend = (eh->root.u.def.value
4393 + eh->root.u.def.section->output_offset
4394 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4395 }
4396 else
4397 {
875c0872 4398 if ((eh->got.offset & 1) != 0)
49e9d0d3 4399 abort ();
875c0872
DA
4400
4401 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4402 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4403 rela.r_addend = 0;
30667bf3 4404 }
edd21aca 4405
947216bf
AM
4406 loc = htab->srelgot->contents;
4407 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4408 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4409 }
edd21aca 4410
875c0872 4411 if (eh->needs_copy)
30667bf3 4412 {
875c0872 4413 asection *sec;
30667bf3
AM
4414
4415 /* This symbol needs a copy reloc. Set it up. */
4416
875c0872
DA
4417 if (! (eh->dynindx != -1
4418 && (eh->root.type == bfd_link_hash_defined
4419 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4420 abort ();
30667bf3 4421
875c0872 4422 sec = htab->srelbss;
30667bf3 4423
875c0872
DA
4424 rela.r_offset = (eh->root.u.def.value
4425 + eh->root.u.def.section->output_offset
4426 + eh->root.u.def.section->output_section->vma);
4427 rela.r_addend = 0;
4428 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4429 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4430 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4431 }
4432
4433 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4434 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4435 {
4436 sym->st_shndx = SHN_ABS;
4437 }
4438
b34976b6 4439 return TRUE;
30667bf3
AM
4440}
4441
98ceb8ce
AM
4442/* Used to decide how to sort relocs in an optimal manner for the
4443 dynamic linker, before writing them out. */
4444
4445static enum elf_reloc_type_class
7e612e98
AM
4446elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4447 const asection *rel_sec ATTRIBUTE_UNUSED,
4448 const Elf_Internal_Rela *rela)
98ceb8ce 4449{
9b52905e 4450 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4451 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4452 check below. */
4453 switch ((int) ELF32_R_TYPE (rela->r_info))
4454 {
4455 case R_PARISC_TLS_DTPMOD32:
4456 case R_PARISC_TLS_DTPOFF32:
4457 case R_PARISC_TLS_TPREL32:
4458 return reloc_class_normal;
4459 }
4460
cf35638d 4461 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4462 return reloc_class_relative;
4463
4464 switch ((int) ELF32_R_TYPE (rela->r_info))
4465 {
4466 case R_PARISC_IPLT:
4467 return reloc_class_plt;
4468 case R_PARISC_COPY:
4469 return reloc_class_copy;
4470 default:
4471 return reloc_class_normal;
4472 }
4473}
4474
30667bf3
AM
4475/* Finish up the dynamic sections. */
4476
b34976b6 4477static bfd_boolean
c39a58e6
AM
4478elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4479 struct bfd_link_info *info)
30667bf3
AM
4480{
4481 bfd *dynobj;
83c81bfe 4482 struct elf32_hppa_link_hash_table *htab;
30667bf3 4483 asection *sdyn;
894891db 4484 asection * sgot;
30667bf3 4485
83c81bfe 4486 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4487 if (htab == NULL)
4488 return FALSE;
4489
a63e02c7 4490 dynobj = htab->etab.dynobj;
30667bf3 4491
894891db
NC
4492 sgot = htab->sgot;
4493 /* A broken linker script might have discarded the dynamic sections.
4494 Catch this here so that we do not seg-fault later on. */
4495 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4496 return FALSE;
4497
3d4d4302 4498 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4499
a63e02c7 4500 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4501 {
4502 Elf32_External_Dyn *dyncon, *dynconend;
4503
49e9d0d3
AM
4504 if (sdyn == NULL)
4505 abort ();
30667bf3
AM
4506
4507 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4508 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4509 for (; dyncon < dynconend; dyncon++)
edd21aca 4510 {
30667bf3
AM
4511 Elf_Internal_Dyn dyn;
4512 asection *s;
4513
4514 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4515
4516 switch (dyn.d_tag)
4517 {
4518 default:
3ac8354b 4519 continue;
30667bf3
AM
4520
4521 case DT_PLTGOT:
4522 /* Use PLTGOT to set the GOT register. */
4523 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4524 break;
4525
4526 case DT_JMPREL:
83c81bfe 4527 s = htab->srelplt;
30667bf3 4528 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4529 break;
4530
4531 case DT_PLTRELSZ:
83c81bfe 4532 s = htab->srelplt;
eea6121a 4533 dyn.d_un.d_val = s->size;
30667bf3 4534 break;
4e12ff7f
AM
4535
4536 case DT_RELASZ:
4537 /* Don't count procedure linkage table relocs in the
4538 overall reloc count. */
6348e046
AM
4539 s = htab->srelplt;
4540 if (s == NULL)
4541 continue;
eea6121a 4542 dyn.d_un.d_val -= s->size;
6348e046
AM
4543 break;
4544
4545 case DT_RELA:
4546 /* We may not be using the standard ELF linker script.
4547 If .rela.plt is the first .rela section, we adjust
4548 DT_RELA to not include it. */
4549 s = htab->srelplt;
4550 if (s == NULL)
4551 continue;
4552 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4553 continue;
eea6121a 4554 dyn.d_un.d_ptr += s->size;
4e12ff7f 4555 break;
30667bf3 4556 }
3ac8354b
AM
4557
4558 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4559 }
252b5132 4560 }
edd21aca 4561
894891db 4562 if (sgot != NULL && sgot->size != 0)
30667bf3 4563 {
74d1c347
AM
4564 /* Fill in the first entry in the global offset table.
4565 We use it to point to our dynamic section, if we have one. */
30667bf3 4566 bfd_put_32 (output_bfd,
c39a58e6 4567 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4568 sgot->contents);
30667bf3 4569
74d1c347 4570 /* The second entry is reserved for use by the dynamic linker. */
894891db 4571 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4572
30667bf3 4573 /* Set .got entry size. */
894891db 4574 elf_section_data (sgot->output_section)
74d1c347 4575 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4576 }
4577
eea6121a 4578 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4579 {
4580 /* Set plt entry size. */
83c81bfe 4581 elf_section_data (htab->splt->output_section)
47d89dba
AM
4582 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4583
83c81bfe 4584 if (htab->need_plt_stub)
47d89dba
AM
4585 {
4586 /* Set up the .plt stub. */
83c81bfe 4587 memcpy (htab->splt->contents
eea6121a 4588 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4589 plt_stub, sizeof (plt_stub));
4590
83c81bfe
AM
4591 if ((htab->splt->output_offset
4592 + htab->splt->output_section->vma
eea6121a 4593 + htab->splt->size)
894891db
NC
4594 != (sgot->output_offset
4595 + sgot->output_section->vma))
47d89dba
AM
4596 {
4597 (*_bfd_error_handler)
4598 (_(".got section not immediately after .plt section"));
b34976b6 4599 return FALSE;
47d89dba
AM
4600 }
4601 }
4602 }
30667bf3 4603
b34976b6 4604 return TRUE;
30667bf3 4605}
252b5132 4606
30667bf3
AM
4607/* Called when writing out an object file to decide the type of a
4608 symbol. */
4609static int
c39a58e6 4610elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4611{
4612 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4613 return STT_PARISC_MILLI;
4614 else
4615 return type;
252b5132
RH
4616}
4617
4618/* Misc BFD support code. */
30667bf3
AM
4619#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4620#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4621#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4622#define elf_info_to_howto elf_hppa_info_to_howto
4623#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4624
252b5132 4625/* Stuff for the BFD linker. */
c46b7515 4626#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4627#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4628#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4629#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4630#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4631#define elf_backend_check_relocs elf32_hppa_check_relocs
4632#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4633#define elf_backend_fake_sections elf_hppa_fake_sections
4634#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4635#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4636#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4637#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4638#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4639#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4640#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4641#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4642#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4643#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4644#define elf_backend_object_p elf32_hppa_object_p
4645#define elf_backend_final_write_processing elf_hppa_final_write_processing
4646#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4647#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4648#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4649
4650#define elf_backend_can_gc_sections 1
51b64d56 4651#define elf_backend_can_refcount 1
30667bf3
AM
4652#define elf_backend_plt_alignment 2
4653#define elf_backend_want_got_plt 0
4654#define elf_backend_plt_readonly 0
4655#define elf_backend_want_plt_sym 0
74d1c347 4656#define elf_backend_got_header_size 8
f0fe0e16 4657#define elf_backend_rela_normal 1
252b5132
RH
4658
4659#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4660#define TARGET_BIG_NAME "elf32-hppa"
4661#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4662#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4663#define ELF_MACHINE_CODE EM_PARISC
4664#define ELF_MAXPAGESIZE 0x1000
d1036acb 4665#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4666#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4667
4668#include "elf32-target.h"
d952f17a
AM
4669
4670#undef TARGET_BIG_SYM
914dfb0f 4671#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
d952f17a 4672#undef TARGET_BIG_NAME
914dfb0f 4673#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4674#undef ELF_OSABI
9c55345c 4675#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4676#undef elf32_bed
4677#define elf32_bed elf32_hppa_linux_bed
d952f17a 4678
d952f17a 4679#include "elf32-target.h"
225247f0
JT
4680
4681#undef TARGET_BIG_SYM
914dfb0f 4682#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
225247f0 4683#undef TARGET_BIG_NAME
914dfb0f 4684#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4685#undef ELF_OSABI
4686#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4687#undef elf32_bed
4688#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4689
4690#include "elf32-target.h"
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