-Wimplicit-fallthrough noreturn fixes
[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
6f2750fe 2 Copyright (C) 1990-2016 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"
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33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
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52
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
56
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
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59 necessary to build the linker stubs during a link.
60
61 There are a number of different stubs generated by the linker.
62
63 Long branch stub:
64 : ldil LR'X,%r1
65 : be,n RR'X(%sr4,%r1)
66
67 PIC long branch stub:
68 : b,l .+8,%r1
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)
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74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 76 : bv %r0(%r21)
3ee1d854 77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
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78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
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81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
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88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
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91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
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98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
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118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
68ffbac6 125
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126 elf32_hppa_link_hash_table "htab"
127 elf32_hppa_link_hash_entry "hh"
128
129 bfd_hash_table "btab"
130 bfd_hash_entry "bh"
68ffbac6 131
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132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
134
135 elf32_hppa_dyn_reloc_entry "hdh"
68ffbac6 136
875c0872 137 Always remember to use GNU Coding Style. */
68ffbac6 138
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139#define PLT_ENTRY_SIZE 8
140#define GOT_ENTRY_SIZE 4
141#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
142
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143static const bfd_byte plt_stub[] =
144{
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148#define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153};
154
30667bf3 155/* Section name for stubs is the associated section name plus this
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156 string. */
157#define STUB_SUFFIX ".stub"
30667bf3 158
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159/* We don't need to copy certain PC- or GP-relative dynamic relocs
160 into a shared object's dynamic section. All the relocs of the
161 limited class we are interested in, are absolute. */
162#ifndef RELATIVE_DYNRELOCS
163#define RELATIVE_DYNRELOCS 0
446f2863 164#define IS_ABSOLUTE_RELOC(r_type) 1
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165#endif
166
4fc8051d
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167/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 copying dynamic variables from a shared lib into an app's dynbss
169 section, and instead use a dynamic relocation to point into the
170 shared lib. */
171#define ELIMINATE_COPY_RELOCS 1
172
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173enum elf32_hppa_stub_type
174{
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175 hppa_stub_long_branch,
176 hppa_stub_long_branch_shared,
177 hppa_stub_import,
178 hppa_stub_import_shared,
179 hppa_stub_export,
180 hppa_stub_none
181};
182
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183struct elf32_hppa_stub_hash_entry
184{
edd21aca 185 /* Base hash table entry structure. */
a63e02c7 186 struct bfd_hash_entry bh_root;
252b5132 187
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188 /* The stub section. */
189 asection *stub_sec;
190
191 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 192 bfd_vma stub_offset;
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193
194 /* Given the symbol's value and its section we can determine its final
195 value when building the stubs (so the stub knows where to jump. */
30667bf3 196 bfd_vma target_value;
252b5132 197 asection *target_section;
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198
199 enum elf32_hppa_stub_type stub_type;
200
201 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 202 struct elf32_hppa_link_hash_entry *hh;
30667bf3 203
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204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
206 asection *id_sec;
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207};
208
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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;
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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
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271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
7292b3ac 273 unsigned int top_index;
b4655ea9
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274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
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
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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
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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;
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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
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311};
312
30667bf3
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313/* Various hash macros and functions. */
314#define hppa_link_hash_table(p) \
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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
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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
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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
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387 entry = bfd_hash_allocate (table,
388 sizeof (struct elf32_hppa_link_hash_entry));
389 if (entry == NULL)
390 return entry;
30667bf3
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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
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405 }
406
ebe50bae 407 return entry;
252b5132
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408}
409
68faa637
AM
410/* Free the derived linker hash table. */
411
412static void
d495ab0d 413elf32_hppa_link_hash_table_free (bfd *obfd)
68faa637
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414{
415 struct elf32_hppa_link_hash_table *htab
d495ab0d 416 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
68faa637
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417
418 bfd_hash_table_free (&htab->bstab);
d495ab0d 419 _bfd_elf_link_hash_table_free (obfd);
68faa637
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420}
421
252b5132
RH
422/* Create the derived linker hash table. The PA ELF port uses the derived
423 hash table to keep information specific to the PA ELF linker (without
424 using static variables). */
425
426static struct bfd_link_hash_table *
c39a58e6 427elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 428{
875c0872
DA
429 struct elf32_hppa_link_hash_table *htab;
430 bfd_size_type amt = sizeof (*htab);
252b5132 431
7bf52ea2 432 htab = bfd_zmalloc (amt);
875c0872 433 if (htab == NULL)
252b5132 434 return NULL;
edd21aca 435
66eb6687 436 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
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NC
437 sizeof (struct elf32_hppa_link_hash_entry),
438 HPPA32_ELF_DATA))
252b5132 439 {
875c0872 440 free (htab);
252b5132
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441 return NULL;
442 }
edd21aca
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443
444 /* Init the stub hash table too. */
66eb6687
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445 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
446 sizeof (struct elf32_hppa_stub_hash_entry)))
d495ab0d
AM
447 {
448 _bfd_elf_link_hash_table_free (abfd);
449 return NULL;
450 }
451 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
edd21aca 452
875c0872
DA
453 htab->text_segment_base = (bfd_vma) -1;
454 htab->data_segment_base = (bfd_vma) -1;
a63e02c7 455 return &htab->etab.root;
252b5132
RH
456}
457
a464198b
AM
458/* Initialize the linker stubs BFD so that we can use it for linker
459 created dynamic sections. */
460
461void
462elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
463{
464 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
465
466 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
467 htab->etab.dynobj = abfd;
468}
469
30667bf3
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470/* Build a name for an entry in the stub hash table. */
471
edd21aca 472static char *
c39a58e6
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473hppa_stub_name (const asection *input_section,
474 const asection *sym_sec,
875c0872
DA
475 const struct elf32_hppa_link_hash_entry *hh,
476 const Elf_Internal_Rela *rela)
edd21aca
AM
477{
478 char *stub_name;
dc810e39 479 bfd_size_type len;
edd21aca 480
875c0872 481 if (hh)
30667bf3 482 {
9b52905e 483 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
484 stub_name = bfd_malloc (len);
485 if (stub_name != NULL)
9b52905e
NC
486 sprintf (stub_name, "%08x_%s+%x",
487 input_section->id & 0xffffffff,
488 hh_name (hh),
489 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
490 }
491 else
edd21aca 492 {
30667bf3
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493 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
494 stub_name = bfd_malloc (len);
495 if (stub_name != NULL)
9b52905e
NC
496 sprintf (stub_name, "%08x_%x:%x+%x",
497 input_section->id & 0xffffffff,
498 sym_sec->id & 0xffffffff,
499 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
500 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
501 }
502 return stub_name;
503}
252b5132 504
30667bf3
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505/* Look up an entry in the stub hash. Stub entries are cached because
506 creating the stub name takes a bit of time. */
507
508static struct elf32_hppa_stub_hash_entry *
c39a58e6
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509hppa_get_stub_entry (const asection *input_section,
510 const asection *sym_sec,
875c0872
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511 struct elf32_hppa_link_hash_entry *hh,
512 const Elf_Internal_Rela *rela,
c39a58e6 513 struct elf32_hppa_link_hash_table *htab)
252b5132 514{
a63e02c7 515 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
516 const asection *id_sec;
517
518 /* If this input section is part of a group of sections sharing one
519 stub section, then use the id of the first section in the group.
520 Stub names need to include a section id, as there may well be
521 more than one stub used to reach say, printf, and we need to
522 distinguish between them. */
83c81bfe 523 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 524
a63e02c7
DA
525 if (hh != NULL && hh->hsh_cache != NULL
526 && hh->hsh_cache->hh == hh
527 && hh->hsh_cache->id_sec == id_sec)
edd21aca 528 {
a63e02c7 529 hsh_entry = hh->hsh_cache;
30667bf3
AM
530 }
531 else
532 {
30667bf3 533 char *stub_name;
edd21aca 534
875c0872 535 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
536 if (stub_name == NULL)
537 return NULL;
edd21aca 538
a63e02c7 539 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 540 stub_name, FALSE, FALSE);
875c0872 541 if (hh != NULL)
a63e02c7 542 hh->hsh_cache = hsh_entry;
30667bf3
AM
543
544 free (stub_name);
edd21aca 545 }
30667bf3 546
a63e02c7 547 return hsh_entry;
30667bf3
AM
548}
549
30667bf3
AM
550/* Add a new stub entry to the stub hash. Not all fields of the new
551 stub entry are initialised. */
552
553static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
554hppa_add_stub (const char *stub_name,
555 asection *section,
556 struct elf32_hppa_link_hash_table *htab)
30667bf3 557{
25f72752 558 asection *link_sec;
30667bf3 559 asection *stub_sec;
875c0872 560 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 561
83c81bfe
AM
562 link_sec = htab->stub_group[section->id].link_sec;
563 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 564 if (stub_sec == NULL)
edd21aca 565 {
83c81bfe 566 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
567 if (stub_sec == NULL)
568 {
d4c88bbb 569 size_t namelen;
dc810e39 570 bfd_size_type len;
30667bf3
AM
571 char *s_name;
572
d4c88bbb
AM
573 namelen = strlen (link_sec->name);
574 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 575 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
576 if (s_name == NULL)
577 return NULL;
578
d4c88bbb
AM
579 memcpy (s_name, link_sec->name, namelen);
580 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 581 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
582 if (stub_sec == NULL)
583 return NULL;
83c81bfe 584 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 585 }
83c81bfe 586 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 587 }
252b5132 588
30667bf3 589 /* Enter this entry into the linker stub hash table. */
a63e02c7 590 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 591 TRUE, FALSE);
875c0872 592 if (hsh == NULL)
30667bf3 593 {
4eca0228
AM
594 _bfd_error_handler (_("%B: cannot create stub entry %s"),
595 section->owner, stub_name);
30667bf3 596 return NULL;
edd21aca
AM
597 }
598
875c0872
DA
599 hsh->stub_sec = stub_sec;
600 hsh->stub_offset = 0;
601 hsh->id_sec = link_sec;
602 return hsh;
edd21aca
AM
603}
604
30667bf3
AM
605/* Determine the type of stub needed, if any, for a call. */
606
607static enum elf32_hppa_stub_type
c39a58e6 608hppa_type_of_stub (asection *input_sec,
875c0872
DA
609 const Elf_Internal_Rela *rela,
610 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
611 bfd_vma destination,
612 struct bfd_link_info *info)
edd21aca 613{
edd21aca 614 bfd_vma location;
30667bf3
AM
615 bfd_vma branch_offset;
616 bfd_vma max_branch_offset;
617 unsigned int r_type;
618
875c0872 619 if (hh != NULL
a63e02c7
DA
620 && hh->eh.plt.offset != (bfd_vma) -1
621 && hh->eh.dynindx != -1
875c0872 622 && !hh->plabel
0e1862bb 623 && (bfd_link_pic (info)
a63e02c7
DA
624 || !hh->eh.def_regular
625 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 626 {
067fa4a6
AM
627 /* We need an import stub. Decide between hppa_stub_import
628 and hppa_stub_import_shared later. */
30667bf3
AM
629 return hppa_stub_import;
630 }
edd21aca 631
30667bf3
AM
632 /* Determine where the call point is. */
633 location = (input_sec->output_offset
634 + input_sec->output_section->vma
875c0872 635 + rela->r_offset);
edd21aca 636
30667bf3 637 branch_offset = destination - location - 8;
875c0872 638 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 639
30667bf3
AM
640 /* Determine if a long branch stub is needed. parisc branch offsets
641 are relative to the second instruction past the branch, ie. +8
642 bytes on from the branch instruction location. The offset is
643 signed and counts in units of 4 bytes. */
644 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
645 max_branch_offset = (1 << (17 - 1)) << 2;
646
30667bf3 647 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
648 max_branch_offset = (1 << (12 - 1)) << 2;
649
25f72752 650 else /* R_PARISC_PCREL22F. */
9b52905e 651 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 652
30667bf3 653 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
654 return hppa_stub_long_branch;
655
30667bf3
AM
656 return hppa_stub_none;
657}
edd21aca 658
30667bf3
AM
659/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
660 IN_ARG contains the link info pointer. */
edd21aca 661
30667bf3
AM
662#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
663#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 664
30667bf3 665#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 666#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 667#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 668
3ee1d854
AM
669#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
670#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 671#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 672#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 673
3ee1d854
AM
674#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
675#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 676
30667bf3
AM
677#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
678#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
679#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
680#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 681
067fa4a6 682#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
683#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
684#define NOP 0x08000240 /* nop */
685#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
686#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
687#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 688
30667bf3
AM
689#ifndef R19_STUBS
690#define R19_STUBS 1
691#endif
edd21aca 692
30667bf3
AM
693#if R19_STUBS
694#define LDW_R1_DLT LDW_R1_R19
695#else
696#define LDW_R1_DLT LDW_R1_DP
697#endif
edd21aca 698
b34976b6 699static bfd_boolean
875c0872 700hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 701{
875c0872 702 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 703 struct bfd_link_info *info;
83c81bfe 704 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
705 asection *stub_sec;
706 bfd *stub_bfd;
707 bfd_byte *loc;
708 bfd_vma sym_value;
74d1c347 709 bfd_vma insn;
8dea1268 710 bfd_vma off;
74d1c347 711 int val;
30667bf3 712 int size;
edd21aca 713
30667bf3 714 /* Massage our args to the form they really have. */
875c0872
DA
715 hsh = hppa_stub_hash_entry (bh);
716 info = (struct bfd_link_info *)in_arg;
30667bf3 717
83c81bfe 718 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
719 if (htab == NULL)
720 return FALSE;
721
875c0872 722 stub_sec = hsh->stub_sec;
edd21aca 723
30667bf3 724 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
725 hsh->stub_offset = stub_sec->size;
726 loc = stub_sec->contents + hsh->stub_offset;
252b5132 727
30667bf3
AM
728 stub_bfd = stub_sec->owner;
729
875c0872 730 switch (hsh->stub_type)
30667bf3
AM
731 {
732 case hppa_stub_long_branch:
733 /* Create the long branch. A long branch is formed with "ldil"
734 loading the upper bits of the target address into a register,
735 then branching with "be" which adds in the lower bits.
736 The "be" has its delay slot nullified. */
875c0872
DA
737 sym_value = (hsh->target_value
738 + hsh->target_section->output_offset
739 + hsh->target_section->output_section->vma);
30667bf3 740
c39a58e6 741 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 742 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
743 bfd_put_32 (stub_bfd, insn, loc);
744
c39a58e6 745 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 746 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
747 bfd_put_32 (stub_bfd, insn, loc + 4);
748
30667bf3 749 size = 8;
edd21aca
AM
750 break;
751
30667bf3
AM
752 case hppa_stub_long_branch_shared:
753 /* Branches are relative. This is where we are going to. */
875c0872
DA
754 sym_value = (hsh->target_value
755 + hsh->target_section->output_offset
756 + hsh->target_section->output_section->vma);
30667bf3
AM
757
758 /* And this is where we are coming from, more or less. */
875c0872 759 sym_value -= (hsh->stub_offset
30667bf3
AM
760 + stub_sec->output_offset
761 + stub_sec->output_section->vma);
762
74d1c347 763 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 764 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 765 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
766 bfd_put_32 (stub_bfd, insn, loc + 4);
767
47d89dba 768 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 769 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
770 bfd_put_32 (stub_bfd, insn, loc + 8);
771 size = 12;
772 break;
edd21aca 773
30667bf3
AM
774 case hppa_stub_import:
775 case hppa_stub_import_shared:
a63e02c7 776 off = hsh->hh->eh.plt.offset;
8dea1268 777 if (off >= (bfd_vma) -2)
49e9d0d3 778 abort ();
8dea1268
AM
779
780 off &= ~ (bfd_vma) 1;
781 sym_value = (off
83c81bfe
AM
782 + htab->splt->output_offset
783 + htab->splt->output_section->vma
784 - elf_gp (htab->splt->output_section->owner));
30667bf3
AM
785
786 insn = ADDIL_DP;
787#if R19_STUBS
875c0872 788 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
789 insn = ADDIL_R19;
790#endif
c39a58e6 791 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 792 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 793 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 794
47d89dba
AM
795 /* It is critical to use lrsel/rrsel here because we are using
796 two different offsets (+0 and +4) from sym_value. If we use
797 lsel/rsel then with unfortunate sym_values we will round
798 sym_value+4 up to the next 2k block leading to a mis-match
799 between the lsel and rsel value. */
c39a58e6 800 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 801 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 802 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 803
83c81bfe 804 if (htab->multi_subspace)
30667bf3 805 {
47d89dba 806 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 807 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 808 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 809
74d1c347
AM
810 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
811 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
812 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
813 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 814
30667bf3
AM
815 size = 28;
816 }
817 else
818 {
74d1c347 819 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 820 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 821 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 822 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 823
30667bf3
AM
824 size = 16;
825 }
252b5132 826
30667bf3 827 break;
252b5132 828
30667bf3
AM
829 case hppa_stub_export:
830 /* Branches are relative. This is where we are going to. */
875c0872
DA
831 sym_value = (hsh->target_value
832 + hsh->target_section->output_offset
833 + hsh->target_section->output_section->vma);
252b5132 834
30667bf3 835 /* And this is where we are coming from. */
875c0872 836 sym_value -= (hsh->stub_offset
30667bf3
AM
837 + stub_sec->output_offset
838 + stub_sec->output_section->vma);
edd21aca 839
067fa4a6
AM
840 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
841 && (!htab->has_22bit_branch
842 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 843 {
4eca0228 844 _bfd_error_handler
d003868e 845 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 846 hsh->target_section->owner,
d003868e 847 stub_sec,
875c0872 848 (long) hsh->stub_offset,
a63e02c7 849 hsh->bh_root.string);
30667bf3 850 bfd_set_error (bfd_error_bad_value);
b34976b6 851 return FALSE;
252b5132 852 }
30667bf3 853
74d1c347 854 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
855 if (!htab->has_22bit_branch)
856 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
857 else
858 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
859 bfd_put_32 (stub_bfd, insn, loc);
860
74d1c347
AM
861 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
862 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
863 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
864 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
865 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
866
867 /* Point the function symbol at the stub. */
a63e02c7
DA
868 hsh->hh->eh.root.u.def.section = stub_sec;
869 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
870
871 size = 24;
872 break;
873
874 default:
875 BFD_FAIL ();
b34976b6 876 return FALSE;
252b5132
RH
877 }
878
eea6121a 879 stub_sec->size += size;
b34976b6 880 return TRUE;
252b5132
RH
881}
882
30667bf3
AM
883#undef LDIL_R1
884#undef BE_SR4_R1
885#undef BL_R1
886#undef ADDIL_R1
887#undef DEPI_R1
30667bf3
AM
888#undef LDW_R1_R21
889#undef LDW_R1_DLT
890#undef LDW_R1_R19
891#undef ADDIL_R19
892#undef LDW_R1_DP
893#undef LDSID_R21_R1
894#undef MTSP_R1
895#undef BE_SR0_R21
896#undef STW_RP
897#undef BV_R0_R21
898#undef BL_RP
899#undef NOP
900#undef LDW_RP
901#undef LDSID_RP_R1
902#undef BE_SR0_RP
252b5132 903
30667bf3
AM
904/* As above, but don't actually build the stub. Just bump offset so
905 we know stub section sizes. */
906
b34976b6 907static bfd_boolean
875c0872 908hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 909{
875c0872 910 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 911 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
912 int size;
913
914 /* Massage our args to the form they really have. */
875c0872 915 hsh = hppa_stub_hash_entry (bh);
c39a58e6 916 htab = in_arg;
30667bf3 917
875c0872 918 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 919 size = 8;
875c0872 920 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 921 size = 12;
875c0872 922 else if (hsh->stub_type == hppa_stub_export)
30667bf3 923 size = 24;
74d1c347 924 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 925 {
83c81bfe 926 if (htab->multi_subspace)
30667bf3
AM
927 size = 28;
928 else
929 size = 16;
930 }
252b5132 931
875c0872 932 hsh->stub_sec->size += size;
b34976b6 933 return TRUE;
30667bf3 934}
252b5132 935
30667bf3
AM
936/* Return nonzero if ABFD represents an HPPA ELF32 file.
937 Additionally we set the default architecture and machine. */
938
b34976b6 939static bfd_boolean
c39a58e6 940elf32_hppa_object_p (bfd *abfd)
30667bf3 941{
24a5e751
L
942 Elf_Internal_Ehdr * i_ehdrp;
943 unsigned int flags;
252b5132 944
24a5e751
L
945 i_ehdrp = elf_elfheader (abfd);
946 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
947 {
9c55345c 948 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 949 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 950 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 951 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 952 return FALSE;
24a5e751 953 }
225247f0
JT
954 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
955 {
956 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
957 but the kernel produces corefiles with OSABI=SysV. */
958 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
959 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
960 return FALSE;
961 }
24a5e751
L
962 else
963 {
964 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 965 return FALSE;
24a5e751
L
966 }
967
968 flags = i_ehdrp->e_flags;
30667bf3
AM
969 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
970 {
971 case EFA_PARISC_1_0:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
973 case EFA_PARISC_1_1:
974 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
975 case EFA_PARISC_2_0:
976 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
977 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
978 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
979 }
b34976b6 980 return TRUE;
252b5132
RH
981}
982
30667bf3
AM
983/* Create the .plt and .got sections, and set up our hash table
984 short-cuts to various dynamic sections. */
985
b34976b6 986static bfd_boolean
c39a58e6 987elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 988{
83c81bfe 989 struct elf32_hppa_link_hash_table *htab;
875c0872 990 struct elf_link_hash_entry *eh;
edd21aca 991
30667bf3 992 /* Don't try to create the .plt and .got twice. */
83c81bfe 993 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
994 if (htab == NULL)
995 return FALSE;
83c81bfe 996 if (htab->splt != NULL)
b34976b6 997 return TRUE;
edd21aca 998
30667bf3
AM
999 /* Call the generic code to do most of the work. */
1000 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 1001 return FALSE;
252b5132 1002
3d4d4302
AM
1003 htab->splt = bfd_get_linker_section (abfd, ".plt");
1004 htab->srelplt = bfd_get_linker_section (abfd, ".rela.plt");
30667bf3 1005
3d4d4302
AM
1006 htab->sgot = bfd_get_linker_section (abfd, ".got");
1007 htab->srelgot = bfd_get_linker_section (abfd, ".rela.got");
edd21aca 1008
3d4d4302
AM
1009 htab->sdynbss = bfd_get_linker_section (abfd, ".dynbss");
1010 htab->srelbss = bfd_get_linker_section (abfd, ".rela.bss");
30667bf3 1011
b18e2ae5
AM
1012 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1013 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
1014 eh = elf_hash_table (info)->hgot;
1015 eh->forced_local = 0;
1016 eh->other = STV_DEFAULT;
1017 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1018}
1019
ebe50bae
AM
1020/* Copy the extra info we tack onto an elf_link_hash_entry. */
1021
51b64d56 1022static void
fcfa13d2 1023elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1024 struct elf_link_hash_entry *eh_dir,
1025 struct elf_link_hash_entry *eh_ind)
ebe50bae 1026{
875c0872 1027 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1028
875c0872
DA
1029 hh_dir = hppa_elf_hash_entry (eh_dir);
1030 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1031
875c0872 1032 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1033 {
875c0872 1034 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1035 {
875c0872
DA
1036 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1037 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1038
fcfa13d2 1039 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1040 list. Merge any entries against the same section. */
875c0872 1041 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1042 {
875c0872 1043 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1044
fcfa13d2
AM
1045 for (hdh_q = hh_dir->dyn_relocs;
1046 hdh_q != NULL;
1047 hdh_q = hdh_q->hdh_next)
875c0872 1048 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1049 {
1050#if RELATIVE_DYNRELOCS
875c0872 1051 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1052#endif
875c0872 1053 hdh_q->count += hdh_p->count;
a63e02c7 1054 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1055 break;
1056 }
875c0872 1057 if (hdh_q == NULL)
a63e02c7 1058 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1059 }
875c0872 1060 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1061 }
1062
875c0872
DA
1063 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1064 hh_ind->dyn_relocs = NULL;
ebe50bae 1065 }
ebe50bae 1066
4fc8051d 1067 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1068 && eh_ind->root.type != bfd_link_hash_indirect
1069 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1070 {
1071 /* If called to transfer flags for a weakdef during processing
1072 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1073 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
875c0872
DA
1074 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1075 eh_dir->ref_regular |= eh_ind->ref_regular;
1076 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1077 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1078 }
4fc8051d 1079 else
9b52905e
NC
1080 {
1081 if (eh_ind->root.type == bfd_link_hash_indirect
1082 && eh_dir->got.refcount <= 0)
1083 {
1084 hh_dir->tls_type = hh_ind->tls_type;
1085 hh_ind->tls_type = GOT_UNKNOWN;
1086 }
1087
1088 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1089 }
1090}
1091
1092static int
1093elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1094 int r_type, int is_local ATTRIBUTE_UNUSED)
1095{
1096 /* For now we don't support linker optimizations. */
1097 return r_type;
ebe50bae
AM
1098}
1099
d45b7d74
DA
1100/* Return a pointer to the local GOT, PLT and TLS reference counts
1101 for ABFD. Returns NULL if the storage allocation fails. */
1102
1103static bfd_signed_vma *
1104hppa32_elf_local_refcounts (bfd *abfd)
1105{
1106 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1107 bfd_signed_vma *local_refcounts;
68ffbac6 1108
d45b7d74
DA
1109 local_refcounts = elf_local_got_refcounts (abfd);
1110 if (local_refcounts == NULL)
1111 {
1112 bfd_size_type size;
1113
1114 /* Allocate space for local GOT and PLT reference
1115 counts. Done this way to save polluting elf_obj_tdata
1116 with another target specific pointer. */
1117 size = symtab_hdr->sh_info;
1118 size *= 2 * sizeof (bfd_signed_vma);
1119 /* Add in space to store the local GOT TLS types. */
1120 size += symtab_hdr->sh_info;
1121 local_refcounts = bfd_zalloc (abfd, size);
1122 if (local_refcounts == NULL)
1123 return NULL;
1124 elf_local_got_refcounts (abfd) = local_refcounts;
1125 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1126 symtab_hdr->sh_info);
1127 }
1128 return local_refcounts;
1129}
1130
1131
30667bf3 1132/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1133 calculate needed space in the global offset table, procedure linkage
1134 table, and dynamic reloc sections. At this point we haven't
1135 necessarily read all the input files. */
252b5132 1136
b34976b6 1137static bfd_boolean
c39a58e6
AM
1138elf32_hppa_check_relocs (bfd *abfd,
1139 struct bfd_link_info *info,
1140 asection *sec,
1141 const Elf_Internal_Rela *relocs)
252b5132 1142{
30667bf3 1143 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1144 struct elf_link_hash_entry **eh_syms;
1145 const Elf_Internal_Rela *rela;
1146 const Elf_Internal_Rela *rela_end;
83c81bfe 1147 struct elf32_hppa_link_hash_table *htab;
30667bf3 1148 asection *sreloc;
9b52905e 1149 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1150
0e1862bb 1151 if (bfd_link_relocatable (info))
b34976b6 1152 return TRUE;
30667bf3 1153
83c81bfe 1154 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1155 if (htab == NULL)
1156 return FALSE;
30667bf3 1157 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1158 eh_syms = elf_sym_hashes (abfd);
30667bf3 1159 sreloc = NULL;
30667bf3 1160
875c0872
DA
1161 rela_end = relocs + sec->reloc_count;
1162 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1163 {
1164 enum {
1165 NEED_GOT = 1,
1166 NEED_PLT = 2,
1167 NEED_DYNREL = 4,
98ceb8ce 1168 PLT_PLABEL = 8
30667bf3 1169 };
edd21aca 1170
30667bf3 1171 unsigned int r_symndx, r_type;
875c0872
DA
1172 struct elf32_hppa_link_hash_entry *hh;
1173 int need_entry = 0;
252b5132 1174
875c0872 1175 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1176
30667bf3 1177 if (r_symndx < symtab_hdr->sh_info)
875c0872 1178 hh = NULL;
30667bf3 1179 else
f7c5057a 1180 {
875c0872 1181 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1182 while (hh->eh.root.type == bfd_link_hash_indirect
1183 || hh->eh.root.type == bfd_link_hash_warning)
1184 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
81fbe831
AM
1185
1186 /* PR15323, ref flags aren't set for references in the same
1187 object. */
1188 hh->eh.root.non_ir_ref = 1;
f7c5057a 1189 }
252b5132 1190
875c0872 1191 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1192 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1193
30667bf3
AM
1194 switch (r_type)
1195 {
1196 case R_PARISC_DLTIND14F:
1197 case R_PARISC_DLTIND14R:
1198 case R_PARISC_DLTIND21L:
1199 /* This symbol requires a global offset table entry. */
1200 need_entry = NEED_GOT;
30667bf3
AM
1201 break;
1202
1203 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1204 case R_PARISC_PLABEL21L:
1205 case R_PARISC_PLABEL32:
74d1c347 1206 /* If the addend is non-zero, we break badly. */
875c0872 1207 if (rela->r_addend != 0)
49e9d0d3 1208 abort ();
74d1c347
AM
1209
1210 /* If we are creating a shared library, then we need to
1211 create a PLT entry for all PLABELs, because PLABELs with
1212 local symbols may be passed via a pointer to another
1213 object. Additionally, output a dynamic relocation
4dc86686 1214 pointing to the PLT entry.
875c0872 1215
4dc86686
AM
1216 For executables, the original 32-bit ABI allowed two
1217 different styles of PLABELs (function pointers): For
1218 global functions, the PLABEL word points into the .plt
1219 two bytes past a (function address, gp) pair, and for
1220 local functions the PLABEL points directly at the
1221 function. The magic +2 for the first type allows us to
1222 differentiate between the two. As you can imagine, this
1223 is a real pain when it comes to generating code to call
1224 functions indirectly or to compare function pointers.
1225 We avoid the mess by always pointing a PLABEL into the
1226 .plt, even for local functions. */
74d1c347 1227 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1228 break;
1229
1230 case R_PARISC_PCREL12F:
83c81bfe 1231 htab->has_12bit_branch = 1;
067fa4a6
AM
1232 goto branch_common;
1233
30667bf3
AM
1234 case R_PARISC_PCREL17C:
1235 case R_PARISC_PCREL17F:
83c81bfe 1236 htab->has_17bit_branch = 1;
067fa4a6
AM
1237 goto branch_common;
1238
30667bf3 1239 case R_PARISC_PCREL22F:
067fa4a6
AM
1240 htab->has_22bit_branch = 1;
1241 branch_common:
47d89dba
AM
1242 /* Function calls might need to go through the .plt, and
1243 might require long branch stubs. */
875c0872 1244 if (hh == NULL)
30667bf3
AM
1245 {
1246 /* We know local syms won't need a .plt entry, and if
1247 they need a long branch stub we can't guarantee that
1248 we can reach the stub. So just flag an error later
1249 if we're doing a shared link and find we need a long
1250 branch stub. */
1251 continue;
1252 }
1253 else
1254 {
1255 /* Global symbols will need a .plt entry if they remain
1256 global, and in most cases won't need a long branch
1257 stub. Unfortunately, we have to cater for the case
1258 where a symbol is forced local by versioning, or due
1259 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1260 need_entry = NEED_PLT;
a63e02c7 1261 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1262 need_entry = 0;
30667bf3
AM
1263 }
1264 break;
1265
36751eee 1266 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1267 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1268 case R_PARISC_PCREL14F: /* PC relative load/store. */
1269 case R_PARISC_PCREL14R:
1270 case R_PARISC_PCREL17R: /* External branches. */
1271 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1272 case R_PARISC_PCREL32:
30667bf3
AM
1273 /* We don't need to propagate the relocation if linking a
1274 shared object since these are section relative. */
1275 continue;
1276
1277 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1278 case R_PARISC_DPREL14R:
1279 case R_PARISC_DPREL21L:
0e1862bb 1280 if (bfd_link_pic (info))
30667bf3 1281 {
4eca0228 1282 _bfd_error_handler
d003868e
AM
1283 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1284 abfd,
30667bf3
AM
1285 elf_hppa_howto_table[r_type].name);
1286 bfd_set_error (bfd_error_bad_value);
b34976b6 1287 return FALSE;
30667bf3
AM
1288 }
1289 /* Fall through. */
1290
1291 case R_PARISC_DIR17F: /* Used for external branches. */
1292 case R_PARISC_DIR17R:
47d89dba
AM
1293 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1294 case R_PARISC_DIR14R:
30667bf3 1295 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1296 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1297 /* We may want to output a dynamic relocation later. */
1298 need_entry = NEED_DYNREL;
1299 break;
1300
1301 /* This relocation describes the C++ object vtable hierarchy.
1302 Reconstruct it for later use during GC. */
1303 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1304 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1305 return FALSE;
30667bf3
AM
1306 continue;
1307
1308 /* This relocation describes which C++ vtable entries are actually
1309 used. Record for later use during GC. */
1310 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1311 BFD_ASSERT (hh != NULL);
1312 if (hh != NULL
1313 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1314 return FALSE;
30667bf3
AM
1315 continue;
1316
9b52905e
NC
1317 case R_PARISC_TLS_GD21L:
1318 case R_PARISC_TLS_GD14R:
1319 case R_PARISC_TLS_LDM21L:
1320 case R_PARISC_TLS_LDM14R:
1321 need_entry = NEED_GOT;
1322 break;
1323
1324 case R_PARISC_TLS_IE21L:
1325 case R_PARISC_TLS_IE14R:
0e1862bb 1326 if (bfd_link_pic (info))
9b52905e
NC
1327 info->flags |= DF_STATIC_TLS;
1328 need_entry = NEED_GOT;
1329 break;
1330
30667bf3
AM
1331 default:
1332 continue;
1333 }
1334
1335 /* Now carry out our orders. */
1336 if (need_entry & NEED_GOT)
1337 {
9b52905e
NC
1338 switch (r_type)
1339 {
1340 default:
1341 tls_type = GOT_NORMAL;
1342 break;
1343 case R_PARISC_TLS_GD21L:
1344 case R_PARISC_TLS_GD14R:
1345 tls_type |= GOT_TLS_GD;
1346 break;
1347 case R_PARISC_TLS_LDM21L:
1348 case R_PARISC_TLS_LDM14R:
1349 tls_type |= GOT_TLS_LDM;
1350 break;
1351 case R_PARISC_TLS_IE21L:
1352 case R_PARISC_TLS_IE14R:
1353 tls_type |= GOT_TLS_IE;
1354 break;
1355 }
1356
30667bf3 1357 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1358 relocation for this entry. */
83c81bfe 1359 if (htab->sgot == NULL)
30667bf3 1360 {
a63e02c7 1361 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1362 return FALSE;
30667bf3
AM
1363 }
1364
9b52905e
NC
1365 if (r_type == R_PARISC_TLS_LDM21L
1366 || r_type == R_PARISC_TLS_LDM14R)
4dfe6ac6 1367 htab->tls_ldm_got.refcount += 1;
30667bf3
AM
1368 else
1369 {
9b52905e
NC
1370 if (hh != NULL)
1371 {
1372 hh->eh.got.refcount += 1;
1373 old_tls_type = hh->tls_type;
1374 }
1375 else
1376 {
1377 bfd_signed_vma *local_got_refcounts;
68ffbac6 1378
9b52905e 1379 /* This is a global offset table entry for a local symbol. */
d45b7d74 1380 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
9b52905e 1381 if (local_got_refcounts == NULL)
d45b7d74 1382 return FALSE;
9b52905e
NC
1383 local_got_refcounts[r_symndx] += 1;
1384
1385 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1386 }
1387
1388 tls_type |= old_tls_type;
1389
1390 if (old_tls_type != tls_type)
1391 {
1392 if (hh != NULL)
1393 hh->tls_type = tls_type;
1394 else
1395 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1396 }
1397
30667bf3
AM
1398 }
1399 }
1400
1401 if (need_entry & NEED_PLT)
1402 {
1403 /* If we are creating a shared library, and this is a reloc
1404 against a weak symbol or a global symbol in a dynamic
1405 object, then we will be creating an import stub and a
1406 .plt entry for the symbol. Similarly, on a normal link
1407 to symbols defined in a dynamic object we'll need the
1408 import stub and a .plt entry. We don't know yet whether
1409 the symbol is defined or not, so make an entry anyway and
1410 clean up later in adjust_dynamic_symbol. */
1411 if ((sec->flags & SEC_ALLOC) != 0)
1412 {
875c0872 1413 if (hh != NULL)
30667bf3 1414 {
a63e02c7
DA
1415 hh->eh.needs_plt = 1;
1416 hh->eh.plt.refcount += 1;
74d1c347 1417
36605136
AM
1418 /* If this .plt entry is for a plabel, mark it so
1419 that adjust_dynamic_symbol will keep the entry
1420 even if it appears to be local. */
74d1c347 1421 if (need_entry & PLT_PLABEL)
875c0872 1422 hh->plabel = 1;
74d1c347
AM
1423 }
1424 else if (need_entry & PLT_PLABEL)
1425 {
3ac8354b 1426 bfd_signed_vma *local_got_refcounts;
68fb2e56 1427 bfd_signed_vma *local_plt_refcounts;
74d1c347 1428
d45b7d74 1429 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1430 if (local_got_refcounts == NULL)
d45b7d74 1431 return FALSE;
68fb2e56
AM
1432 local_plt_refcounts = (local_got_refcounts
1433 + symtab_hdr->sh_info);
ebe50bae 1434 local_plt_refcounts[r_symndx] += 1;
30667bf3 1435 }
30667bf3
AM
1436 }
1437 }
1438
98ceb8ce 1439 if (need_entry & NEED_DYNREL)
30667bf3
AM
1440 {
1441 /* Flag this symbol as having a non-got, non-plt reference
1442 so that we generate copy relocs if it turns out to be
1443 dynamic. */
0e1862bb 1444 if (hh != NULL && !bfd_link_pic (info))
a63e02c7 1445 hh->eh.non_got_ref = 1;
30667bf3
AM
1446
1447 /* If we are creating a shared library then we need to copy
1448 the reloc into the shared library. However, if we are
1449 linking with -Bsymbolic, we need only copy absolute
1450 relocs or relocs against symbols that are not defined in
1451 an object we are including in the link. PC- or DP- or
1452 DLT-relative relocs against any local sym or global sym
1453 with DEF_REGULAR set, can be discarded. At this point we
1454 have not seen all the input files, so it is possible that
1455 DEF_REGULAR is not set now but will be set later (it is
1456 never cleared). We account for that possibility below by
98ceb8ce 1457 storing information in the dyn_relocs field of the
30667bf3
AM
1458 hash table entry.
1459
1460 A similar situation to the -Bsymbolic case occurs when
1461 creating shared libraries and symbol visibility changes
1462 render the symbol local.
1463
1464 As it turns out, all the relocs we will be creating here
1465 are absolute, so we cannot remove them on -Bsymbolic
1466 links or visibility changes anyway. A STUB_REL reloc
1467 is absolute too, as in that case it is the reloc in the
1468 stub we will be creating, rather than copying the PCREL
56882138
AM
1469 reloc in the branch.
1470
1471 If on the other hand, we are creating an executable, we
1472 may need to keep relocations for symbols satisfied by a
1473 dynamic library if we manage to avoid copy relocs for the
1474 symbol. */
0e1862bb 1475 if ((bfd_link_pic (info)
446f2863
AM
1476 && (sec->flags & SEC_ALLOC) != 0
1477 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1478 || (hh != NULL
a496fbc8 1479 && (!SYMBOLIC_BIND (info, &hh->eh)
a63e02c7
DA
1480 || hh->eh.root.type == bfd_link_hash_defweak
1481 || !hh->eh.def_regular))))
4fc8051d 1482 || (ELIMINATE_COPY_RELOCS
0e1862bb 1483 && !bfd_link_pic (info)
446f2863 1484 && (sec->flags & SEC_ALLOC) != 0
875c0872 1485 && hh != NULL
a63e02c7
DA
1486 && (hh->eh.root.type == bfd_link_hash_defweak
1487 || !hh->eh.def_regular)))
30667bf3 1488 {
875c0872
DA
1489 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1490 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1491
30667bf3
AM
1492 /* Create a reloc section in dynobj and make room for
1493 this reloc. */
98ceb8ce 1494 if (sreloc == NULL)
30667bf3 1495 {
83bac4b0
NC
1496 sreloc = _bfd_elf_make_dynamic_reloc_section
1497 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1498
98ceb8ce 1499 if (sreloc == NULL)
30667bf3 1500 {
83bac4b0
NC
1501 bfd_set_error (bfd_error_bad_value);
1502 return FALSE;
30667bf3 1503 }
30667bf3
AM
1504 }
1505
98ceb8ce
AM
1506 /* If this is a global symbol, we count the number of
1507 relocations we need for this symbol. */
875c0872 1508 if (hh != NULL)
30667bf3 1509 {
875c0872 1510 hdh_head = &hh->dyn_relocs;
ec338859
AM
1511 }
1512 else
1513 {
1514 /* Track dynamic relocs needed for local syms too.
1515 We really need local syms available to do this
1516 easily. Oh well. */
875c0872 1517 asection *sr;
6edfbbad 1518 void *vpp;
87d72d41 1519 Elf_Internal_Sym *isym;
6edfbbad 1520
87d72d41
AM
1521 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1522 abfd, r_symndx);
1523 if (isym == NULL)
b34976b6 1524 return FALSE;
30667bf3 1525
87d72d41
AM
1526 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1527 if (sr == NULL)
1528 sr = sec;
1529
6edfbbad
DJ
1530 vpp = &elf_section_data (sr)->local_dynrel;
1531 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1532 }
1533
875c0872
DA
1534 hdh_p = *hdh_head;
1535 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1536 {
a63e02c7 1537 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1538 if (hdh_p == NULL)
b34976b6 1539 return FALSE;
a63e02c7 1540 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1541 *hdh_head = hdh_p;
1542 hdh_p->sec = sec;
1543 hdh_p->count = 0;
98ceb8ce 1544#if RELATIVE_DYNRELOCS
875c0872 1545 hdh_p->relative_count = 0;
98ceb8ce 1546#endif
ec338859 1547 }
98ceb8ce 1548
875c0872 1549 hdh_p->count += 1;
98ceb8ce 1550#if RELATIVE_DYNRELOCS
ec338859 1551 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1552 hdh_p->relative_count += 1;
98ceb8ce 1553#endif
30667bf3
AM
1554 }
1555 }
1556 }
edd21aca 1557
b34976b6 1558 return TRUE;
edd21aca
AM
1559}
1560
30667bf3
AM
1561/* Return the section that should be marked against garbage collection
1562 for a given relocation. */
1563
1564static asection *
c39a58e6 1565elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1566 struct bfd_link_info *info,
875c0872
DA
1567 Elf_Internal_Rela *rela,
1568 struct elf_link_hash_entry *hh,
c39a58e6 1569 Elf_Internal_Sym *sym)
30667bf3 1570{
875c0872 1571 if (hh != NULL)
07adf181
AM
1572 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1573 {
1574 case R_PARISC_GNU_VTINHERIT:
1575 case R_PARISC_GNU_VTENTRY:
1576 return NULL;
1577 }
30667bf3 1578
07adf181 1579 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1580}
1581
30667bf3
AM
1582/* Update the got and plt entry reference counts for the section being
1583 removed. */
edd21aca 1584
b34976b6 1585static bfd_boolean
c39a58e6
AM
1586elf32_hppa_gc_sweep_hook (bfd *abfd,
1587 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1588 asection *sec,
1589 const Elf_Internal_Rela *relocs)
edd21aca 1590{
30667bf3 1591 Elf_Internal_Shdr *symtab_hdr;
875c0872 1592 struct elf_link_hash_entry **eh_syms;
30667bf3 1593 bfd_signed_vma *local_got_refcounts;
74d1c347 1594 bfd_signed_vma *local_plt_refcounts;
875c0872 1595 const Elf_Internal_Rela *rela, *relend;
4dfe6ac6 1596 struct elf32_hppa_link_hash_table *htab;
30667bf3 1597
0e1862bb 1598 if (bfd_link_relocatable (info))
7dda2462
TG
1599 return TRUE;
1600
4dfe6ac6
NC
1601 htab = hppa_link_hash_table (info);
1602 if (htab == NULL)
1603 return FALSE;
1604
ec338859 1605 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1606
30667bf3 1607 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1608 eh_syms = elf_sym_hashes (abfd);
30667bf3 1609 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1610 local_plt_refcounts = local_got_refcounts;
1611 if (local_plt_refcounts != NULL)
1612 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1613
30667bf3 1614 relend = relocs + sec->reloc_count;
875c0872 1615 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1616 {
1617 unsigned long r_symndx;
1618 unsigned int r_type;
875c0872 1619 struct elf_link_hash_entry *eh = NULL;
26e41594 1620
875c0872 1621 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1622 if (r_symndx >= symtab_hdr->sh_info)
1623 {
875c0872
DA
1624 struct elf32_hppa_link_hash_entry *hh;
1625 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1626 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1627
875c0872
DA
1628 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1629 while (eh->root.type == bfd_link_hash_indirect
1630 || eh->root.type == bfd_link_hash_warning)
1631 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1632 hh = hppa_elf_hash_entry (eh);
26e41594 1633
a63e02c7 1634 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1635 if (hdh_p->sec == sec)
26e41594
AM
1636 {
1637 /* Everything must go for SEC. */
a63e02c7 1638 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1639 break;
1640 }
1641 }
1642
875c0872 1643 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1644 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1645
26e41594
AM
1646 switch (r_type)
1647 {
1648 case R_PARISC_DLTIND14F:
1649 case R_PARISC_DLTIND14R:
1650 case R_PARISC_DLTIND21L:
9b52905e
NC
1651 case R_PARISC_TLS_GD21L:
1652 case R_PARISC_TLS_GD14R:
1653 case R_PARISC_TLS_IE21L:
1654 case R_PARISC_TLS_IE14R:
875c0872 1655 if (eh != NULL)
26e41594 1656 {
875c0872
DA
1657 if (eh->got.refcount > 0)
1658 eh->got.refcount -= 1;
26e41594
AM
1659 }
1660 else if (local_got_refcounts != NULL)
1661 {
1662 if (local_got_refcounts[r_symndx] > 0)
1663 local_got_refcounts[r_symndx] -= 1;
1664 }
1665 break;
98ceb8ce 1666
9b52905e
NC
1667 case R_PARISC_TLS_LDM21L:
1668 case R_PARISC_TLS_LDM14R:
4dfe6ac6 1669 htab->tls_ldm_got.refcount -= 1;
9b52905e
NC
1670 break;
1671
26e41594
AM
1672 case R_PARISC_PCREL12F:
1673 case R_PARISC_PCREL17C:
1674 case R_PARISC_PCREL17F:
1675 case R_PARISC_PCREL22F:
875c0872 1676 if (eh != NULL)
26e41594 1677 {
875c0872
DA
1678 if (eh->plt.refcount > 0)
1679 eh->plt.refcount -= 1;
26e41594
AM
1680 }
1681 break;
1682
1683 case R_PARISC_PLABEL14R:
1684 case R_PARISC_PLABEL21L:
1685 case R_PARISC_PLABEL32:
875c0872 1686 if (eh != NULL)
26e41594 1687 {
875c0872
DA
1688 if (eh->plt.refcount > 0)
1689 eh->plt.refcount -= 1;
26e41594
AM
1690 }
1691 else if (local_plt_refcounts != NULL)
1692 {
1693 if (local_plt_refcounts[r_symndx] > 0)
1694 local_plt_refcounts[r_symndx] -= 1;
1695 }
1696 break;
1697
1698 default:
1699 break;
1700 }
1701 }
252b5132 1702
b34976b6 1703 return TRUE;
252b5132
RH
1704}
1705
edfc032f
AM
1706/* Support for core dump NOTE sections. */
1707
1708static bfd_boolean
1709elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1710{
1711 int offset;
1712 size_t size;
1713
1714 switch (note->descsz)
1715 {
1716 default:
1717 return FALSE;
1718
1719 case 396: /* Linux/hppa */
1720 /* pr_cursig */
228e534f 1721 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
edfc032f
AM
1722
1723 /* pr_pid */
228e534f 1724 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1725
1726 /* pr_reg */
1727 offset = 72;
1728 size = 320;
1729
1730 break;
1731 }
1732
1733 /* Make a ".reg/999" section. */
1734 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1735 size, note->descpos + offset);
1736}
1737
1738static bfd_boolean
1739elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1740{
1741 switch (note->descsz)
1742 {
1743 default:
1744 return FALSE;
1745
1746 case 124: /* Linux/hppa elf_prpsinfo. */
228e534f 1747 elf_tdata (abfd)->core->program
edfc032f 1748 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 1749 elf_tdata (abfd)->core->command
edfc032f
AM
1750 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1751 }
1752
1753 /* Note that for some reason, a spurious space is tacked
1754 onto the end of the args in some (at least one anyway)
1755 implementations, so strip it off if it exists. */
1756 {
228e534f 1757 char *command = elf_tdata (abfd)->core->command;
edfc032f
AM
1758 int n = strlen (command);
1759
1760 if (0 < n && command[n - 1] == ' ')
1761 command[n - 1] = '\0';
1762 }
1763
1764 return TRUE;
1765}
1766
74d1c347
AM
1767/* Our own version of hide_symbol, so that we can keep plt entries for
1768 plabels. */
1769
1770static void
c39a58e6 1771elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1772 struct elf_link_hash_entry *eh,
c39a58e6 1773 bfd_boolean force_local)
74d1c347 1774{
e5094212
AM
1775 if (force_local)
1776 {
875c0872
DA
1777 eh->forced_local = 1;
1778 if (eh->dynindx != -1)
e5094212 1779 {
875c0872 1780 eh->dynindx = -1;
e5094212 1781 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1782 eh->dynstr_index);
e5094212 1783 }
31fc8a0b
NC
1784
1785 /* PR 16082: Remove version information from hidden symbol. */
1786 eh->verinfo.verdef = NULL;
1787 eh->verinfo.vertree = NULL;
e5094212
AM
1788 }
1789
4340287b
DA
1790 /* STT_GNU_IFUNC symbol must go through PLT. */
1791 if (! hppa_elf_hash_entry (eh)->plabel
1792 && eh->type != STT_GNU_IFUNC)
74d1c347 1793 {
875c0872 1794 eh->needs_plt = 0;
4340287b 1795 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1796 }
1797}
1798
30667bf3
AM
1799/* Adjust a symbol defined by a dynamic object and referenced by a
1800 regular object. The current definition is in some section of the
1801 dynamic object, but we're not including those sections. We have to
1802 change the definition to something the rest of the link can
1803 understand. */
252b5132 1804
b34976b6 1805static bfd_boolean
c39a58e6 1806elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1807 struct elf_link_hash_entry *eh)
252b5132 1808{
83c81bfe 1809 struct elf32_hppa_link_hash_table *htab;
875c0872 1810 asection *sec;
30667bf3
AM
1811
1812 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1813 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1814 if (eh->type == STT_FUNC
1815 || eh->needs_plt)
30667bf3 1816 {
4340287b
DA
1817 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1818 The refcounts are not reliable when it has been hidden since
1819 hide_symbol can be called before the plabel flag is set. */
1820 if (hppa_elf_hash_entry (eh)->plabel
1821 && eh->plt.refcount <= 0)
1822 eh->plt.refcount = 1;
1823
875c0872
DA
1824 if (eh->plt.refcount <= 0
1825 || (eh->def_regular
1826 && eh->root.type != bfd_link_hash_defweak
1827 && ! hppa_elf_hash_entry (eh)->plabel
0e1862bb 1828 && (!bfd_link_pic (info) || SYMBOLIC_BIND (info, eh))))
30667bf3
AM
1829 {
1830 /* The .plt entry is not needed when:
1831 a) Garbage collection has removed all references to the
1832 symbol, or
1833 b) We know for certain the symbol is defined in this
74d1c347
AM
1834 object, and it's not a weak definition, nor is the symbol
1835 used by a plabel relocation. Either this object is the
1836 application or we are doing a shared symbolic link. */
1837
875c0872
DA
1838 eh->plt.offset = (bfd_vma) -1;
1839 eh->needs_plt = 0;
30667bf3 1840 }
4dc86686 1841
b34976b6 1842 return TRUE;
30667bf3 1843 }
bbd7ec4a 1844 else
875c0872 1845 eh->plt.offset = (bfd_vma) -1;
edd21aca 1846
30667bf3
AM
1847 /* If this is a weak symbol, and there is a real definition, the
1848 processor independent code will have arranged for us to see the
1849 real definition first, and we can just use the same value. */
875c0872 1850 if (eh->u.weakdef != NULL)
edd21aca 1851 {
875c0872
DA
1852 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1853 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1854 abort ();
875c0872
DA
1855 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1856 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1857 if (ELIMINATE_COPY_RELOCS)
875c0872 1858 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1859 return TRUE;
30667bf3 1860 }
edd21aca 1861
30667bf3
AM
1862 /* This is a reference to a symbol defined by a dynamic object which
1863 is not a function. */
1864
1865 /* If we are creating a shared library, we must presume that the
1866 only references to the symbol are via the global offset table.
1867 For such cases we need not do anything here; the relocations will
1868 be handled correctly by relocate_section. */
0e1862bb 1869 if (bfd_link_pic (info))
b34976b6 1870 return TRUE;
30667bf3
AM
1871
1872 /* If there are no references to this symbol that do not use the
1873 GOT, we don't need to generate a copy reloc. */
875c0872 1874 if (!eh->non_got_ref)
b34976b6 1875 return TRUE;
30667bf3 1876
4fc8051d 1877 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1878 {
875c0872
DA
1879 struct elf32_hppa_link_hash_entry *hh;
1880 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1881
875c0872 1882 hh = hppa_elf_hash_entry (eh);
a63e02c7 1883 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1884 {
875c0872
DA
1885 sec = hdh_p->sec->output_section;
1886 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1887 break;
1888 }
1889
1890 /* If we didn't find any dynamic relocs in read-only sections, then
1891 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1892 if (hdh_p == NULL)
4fc8051d 1893 {
875c0872 1894 eh->non_got_ref = 0;
4fc8051d
AM
1895 return TRUE;
1896 }
ebe50bae
AM
1897 }
1898
30667bf3
AM
1899 /* We must allocate the symbol in our .dynbss section, which will
1900 become part of the .bss section of the executable. There will be
1901 an entry for this symbol in the .dynsym section. The dynamic
1902 object will contain position independent code, so all references
1903 from the dynamic object to this symbol will go through the global
1904 offset table. The dynamic linker will use the .dynsym entry to
1905 determine the address it must put in the global offset table, so
1906 both the dynamic object and the regular object will refer to the
1907 same memory location for the variable. */
1908
3ac8354b 1909 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1910 if (htab == NULL)
1911 return FALSE;
30667bf3
AM
1912
1913 /* We must generate a COPY reloc to tell the dynamic linker to
1914 copy the initial value out of the dynamic object and into the
3ac8354b 1915 runtime process image. */
1d7e9d18 1916 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
30667bf3 1917 {
eea6121a 1918 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1919 eh->needs_copy = 1;
edd21aca 1920 }
252b5132 1921
875c0872 1922 sec = htab->sdynbss;
edd21aca 1923
6cabe1ea 1924 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
252b5132
RH
1925}
1926
e5ee5df1 1927/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1928 ie. plabel entries. */
a8d02d66 1929
b34976b6 1930static bfd_boolean
875c0872 1931allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1932{
1933 struct bfd_link_info *info;
1934 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1935 struct elf32_hppa_link_hash_entry *hh;
1936 asection *sec;
a8d02d66 1937
875c0872 1938 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1939 return TRUE;
a8d02d66 1940
875c0872 1941 info = (struct bfd_link_info *) inf;
9b52905e 1942 hh = hppa_elf_hash_entry (eh);
a8d02d66 1943 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1944 if (htab == NULL)
1945 return FALSE;
1946
a63e02c7 1947 if (htab->etab.dynamic_sections_created
875c0872 1948 && eh->plt.refcount > 0)
e5ee5df1
AM
1949 {
1950 /* Make sure this symbol is output as a dynamic symbol.
1951 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1952 if (eh->dynindx == -1
1953 && !eh->forced_local
1954 && eh->type != STT_PARISC_MILLI)
a8d02d66 1955 {
875c0872 1956 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1957 return FALSE;
e5ee5df1
AM
1958 }
1959
0e1862bb 1960 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
e5ee5df1 1961 {
067fa4a6
AM
1962 /* Allocate these later. From this point on, h->plabel
1963 means that the plt entry is only used by a plabel.
1964 We'll be using a normal plt entry for this symbol, so
1965 clear the plabel indicator. */
68ffbac6 1966
875c0872 1967 hh->plabel = 0;
e5ee5df1 1968 }
875c0872 1969 else if (hh->plabel)
e5ee5df1
AM
1970 {
1971 /* Make an entry in the .plt section for plabel references
1972 that won't have a .plt entry for other reasons. */
875c0872
DA
1973 sec = htab->splt;
1974 eh->plt.offset = sec->size;
1975 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1976 }
1977 else
e5ee5df1
AM
1978 {
1979 /* No .plt entry needed. */
875c0872
DA
1980 eh->plt.offset = (bfd_vma) -1;
1981 eh->needs_plt = 0;
e5ee5df1
AM
1982 }
1983 }
1984 else
1985 {
875c0872
DA
1986 eh->plt.offset = (bfd_vma) -1;
1987 eh->needs_plt = 0;
a8d02d66
AM
1988 }
1989
b34976b6 1990 return TRUE;
a8d02d66
AM
1991}
1992
4dc86686
AM
1993/* Allocate space in .plt, .got and associated reloc sections for
1994 global syms. */
1995
b34976b6 1996static bfd_boolean
875c0872 1997allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1998{
1999 struct bfd_link_info *info;
83c81bfe 2000 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2001 asection *sec;
2002 struct elf32_hppa_link_hash_entry *hh;
2003 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2004
875c0872 2005 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2006 return TRUE;
73a74a62 2007
c39a58e6 2008 info = inf;
83c81bfe 2009 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2010 if (htab == NULL)
2011 return FALSE;
2012
875c0872 2013 hh = hppa_elf_hash_entry (eh);
68ffbac6 2014
a63e02c7 2015 if (htab->etab.dynamic_sections_created
875c0872
DA
2016 && eh->plt.offset != (bfd_vma) -1
2017 && !hh->plabel
2018 && eh->plt.refcount > 0)
4dc86686 2019 {
e5ee5df1 2020 /* Make an entry in the .plt section. */
875c0872
DA
2021 sec = htab->splt;
2022 eh->plt.offset = sec->size;
2023 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2024
e5ee5df1 2025 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2026 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2027 htab->need_plt_stub = 1;
4dc86686 2028 }
edd21aca 2029
875c0872 2030 if (eh->got.refcount > 0)
4dc86686 2031 {
446f2863
AM
2032 /* Make sure this symbol is output as a dynamic symbol.
2033 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2034 if (eh->dynindx == -1
2035 && !eh->forced_local
2036 && eh->type != STT_PARISC_MILLI)
446f2863 2037 {
875c0872 2038 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2039 return FALSE;
446f2863
AM
2040 }
2041
875c0872
DA
2042 sec = htab->sgot;
2043 eh->got.offset = sec->size;
2044 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2045 /* R_PARISC_TLS_GD* needs two GOT entries */
2046 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2047 sec->size += GOT_ENTRY_SIZE * 2;
2048 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2049 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2050 if (htab->etab.dynamic_sections_created
0e1862bb 2051 && (bfd_link_pic (info)
875c0872
DA
2052 || (eh->dynindx != -1
2053 && !eh->forced_local)))
ce757d15 2054 {
eea6121a 2055 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2056 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2057 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2058 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2059 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2060 }
4dc86686
AM
2061 }
2062 else
875c0872 2063 eh->got.offset = (bfd_vma) -1;
30667bf3 2064
875c0872 2065 if (hh->dyn_relocs == NULL)
b34976b6 2066 return TRUE;
30667bf3 2067
98ceb8ce
AM
2068 /* If this is a -Bsymbolic shared link, then we need to discard all
2069 space allocated for dynamic pc-relative relocs against symbols
2070 defined in a regular object. For the normal shared case, discard
2071 space for relocs that have become local due to symbol visibility
2072 changes. */
0e1862bb 2073 if (bfd_link_pic (info))
446f2863 2074 {
98ceb8ce 2075#if RELATIVE_DYNRELOCS
875c0872 2076 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2077 {
875c0872 2078 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2079
875c0872 2080 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2081 {
875c0872
DA
2082 hdh_p->count -= hdh_p->relative_count;
2083 hdh_p->relative_count = 0;
2084 if (hdh_p->count == 0)
a63e02c7 2085 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2086 else
a63e02c7 2087 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2088 }
2089 }
2090#endif
4fc8051d
AM
2091
2092 /* Also discard relocs on undefined weak syms with non-default
2093 visibility. */
22d606e9 2094 if (hh->dyn_relocs != NULL
875c0872 2095 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2096 {
2097 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2098 hh->dyn_relocs = NULL;
2099
2100 /* Make sure undefined weak symbols are output as a dynamic
2101 symbol in PIEs. */
2102 else if (eh->dynindx == -1
2103 && !eh->forced_local)
2104 {
2105 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2106 return FALSE;
2107 }
2108 }
446f2863 2109 }
98ceb8ce 2110 else
30667bf3 2111 {
98ceb8ce
AM
2112 /* For the non-shared case, discard space for relocs against
2113 symbols which turn out to need copy relocs or are not
2114 dynamic. */
68ffbac6 2115
875c0872 2116 if (!eh->non_got_ref
4fc8051d 2117 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2118 && eh->def_dynamic
2119 && !eh->def_regular)
a63e02c7 2120 || (htab->etab.dynamic_sections_created
875c0872
DA
2121 && (eh->root.type == bfd_link_hash_undefweak
2122 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2123 {
2124 /* Make sure this symbol is output as a dynamic symbol.
2125 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2126 if (eh->dynindx == -1
2127 && !eh->forced_local
2128 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2129 {
875c0872 2130 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2131 return FALSE;
98ceb8ce
AM
2132 }
2133
2134 /* If that succeeded, we know we'll be keeping all the
2135 relocs. */
875c0872 2136 if (eh->dynindx != -1)
98ceb8ce
AM
2137 goto keep;
2138 }
446f2863 2139
875c0872 2140 hh->dyn_relocs = NULL;
b34976b6 2141 return TRUE;
98ceb8ce 2142
ec338859 2143 keep: ;
30667bf3 2144 }
30667bf3 2145
98ceb8ce 2146 /* Finally, allocate space. */
a63e02c7 2147 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2148 {
875c0872
DA
2149 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2150 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2151 }
30667bf3 2152
b34976b6 2153 return TRUE;
30667bf3 2154}
30667bf3 2155
d5c73c2f
AM
2156/* This function is called via elf_link_hash_traverse to force
2157 millicode symbols local so they do not end up as globals in the
2158 dynamic symbol table. We ought to be able to do this in
2159 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2160 for all dynamic symbols. Arguably, this is a bug in
2161 elf_adjust_dynamic_symbol. */
2162
b34976b6 2163static bfd_boolean
875c0872 2164clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2165 struct bfd_link_info *info)
d5c73c2f 2166{
875c0872
DA
2167 if (eh->type == STT_PARISC_MILLI
2168 && !eh->forced_local)
e0522e89 2169 {
875c0872 2170 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2171 }
b34976b6 2172 return TRUE;
d5c73c2f
AM
2173}
2174
98ceb8ce
AM
2175/* Find any dynamic relocs that apply to read-only sections. */
2176
b34976b6 2177static bfd_boolean
875c0872 2178readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2179{
875c0872
DA
2180 struct elf32_hppa_link_hash_entry *hh;
2181 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2182
875c0872 2183 hh = hppa_elf_hash_entry (eh);
a63e02c7 2184 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2185 {
875c0872 2186 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2187
875c0872 2188 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2189 {
c39a58e6 2190 struct bfd_link_info *info = inf;
98ceb8ce
AM
2191
2192 info->flags |= DF_TEXTREL;
2193
2194 /* Not an error, just cut short the traversal. */
b34976b6 2195 return FALSE;
98ceb8ce
AM
2196 }
2197 }
b34976b6 2198 return TRUE;
98ceb8ce
AM
2199}
2200
30667bf3
AM
2201/* Set the sizes of the dynamic sections. */
2202
b34976b6 2203static bfd_boolean
c39a58e6
AM
2204elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2205 struct bfd_link_info *info)
30667bf3 2206{
83c81bfe 2207 struct elf32_hppa_link_hash_table *htab;
30667bf3 2208 bfd *dynobj;
98ceb8ce 2209 bfd *ibfd;
875c0872 2210 asection *sec;
b34976b6 2211 bfd_boolean relocs;
30667bf3 2212
83c81bfe 2213 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2214 if (htab == NULL)
2215 return FALSE;
2216
a63e02c7 2217 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2218 if (dynobj == NULL)
2219 abort ();
30667bf3 2220
a63e02c7 2221 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2222 {
2223 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2224 if (bfd_link_executable (info) && !info->nointerp)
30667bf3 2225 {
3d4d4302 2226 sec = bfd_get_linker_section (dynobj, ".interp");
875c0872 2227 if (sec == NULL)
49e9d0d3 2228 abort ();
875c0872
DA
2229 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2230 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2231 }
74d1c347 2232
d5c73c2f 2233 /* Force millicode symbols local. */
a63e02c7 2234 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2235 clobber_millicode_symbols,
2236 info);
68fb2e56 2237 }
d5c73c2f 2238
98ceb8ce
AM
2239 /* Set up .got and .plt offsets for local syms, and space for local
2240 dynamic relocs. */
c72f2fb2 2241 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
68fb2e56
AM
2242 {
2243 bfd_signed_vma *local_got;
2244 bfd_signed_vma *end_local_got;
2245 bfd_signed_vma *local_plt;
2246 bfd_signed_vma *end_local_plt;
2247 bfd_size_type locsymcount;
2248 Elf_Internal_Shdr *symtab_hdr;
2249 asection *srel;
9b52905e 2250 char *local_tls_type;
74d1c347 2251
98ceb8ce 2252 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2253 continue;
4dc86686 2254
875c0872 2255 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2256 {
875c0872 2257 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2258
875c0872
DA
2259 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2260 elf_section_data (sec)->local_dynrel);
2261 hdh_p != NULL;
a63e02c7 2262 hdh_p = hdh_p->hdh_next)
98ceb8ce 2263 {
875c0872
DA
2264 if (!bfd_is_abs_section (hdh_p->sec)
2265 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2266 {
2267 /* Input section has been discarded, either because
2268 it is a copy of a linkonce section or due to
2269 linker script /DISCARD/, so we'll be discarding
2270 the relocs too. */
2271 }
875c0872 2272 else if (hdh_p->count != 0)
ec338859 2273 {
875c0872
DA
2274 srel = elf_section_data (hdh_p->sec)->sreloc;
2275 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2276 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2277 info->flags |= DF_TEXTREL;
ec338859 2278 }
98ceb8ce
AM
2279 }
2280 }
2281
2282 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2283 if (!local_got)
2284 continue;
74d1c347 2285
98ceb8ce 2286 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2287 locsymcount = symtab_hdr->sh_info;
2288 end_local_got = local_got + locsymcount;
9b52905e 2289 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2290 sec = htab->sgot;
83c81bfe 2291 srel = htab->srelgot;
68fb2e56
AM
2292 for (; local_got < end_local_got; ++local_got)
2293 {
2294 if (*local_got > 0)
4dc86686 2295 {
875c0872
DA
2296 *local_got = sec->size;
2297 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2298 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2299 sec->size += 2 * GOT_ENTRY_SIZE;
2300 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2301 sec->size += GOT_ENTRY_SIZE;
0e1862bb 2302 if (bfd_link_pic (info))
9b52905e
NC
2303 {
2304 srel->size += sizeof (Elf32_External_Rela);
2305 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2306 srel->size += 2 * sizeof (Elf32_External_Rela);
2307 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2308 srel->size += sizeof (Elf32_External_Rela);
2309 }
4dc86686 2310 }
68fb2e56
AM
2311 else
2312 *local_got = (bfd_vma) -1;
9b52905e
NC
2313
2314 ++local_tls_type;
68fb2e56 2315 }
74d1c347 2316
68fb2e56
AM
2317 local_plt = end_local_got;
2318 end_local_plt = local_plt + locsymcount;
a63e02c7 2319 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2320 {
2321 /* Won't be used, but be safe. */
2322 for (; local_plt < end_local_plt; ++local_plt)
2323 *local_plt = (bfd_vma) -1;
2324 }
2325 else
2326 {
875c0872 2327 sec = htab->splt;
83c81bfe 2328 srel = htab->srelplt;
74d1c347
AM
2329 for (; local_plt < end_local_plt; ++local_plt)
2330 {
2331 if (*local_plt > 0)
2332 {
875c0872
DA
2333 *local_plt = sec->size;
2334 sec->size += PLT_ENTRY_SIZE;
0e1862bb 2335 if (bfd_link_pic (info))
eea6121a 2336 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2337 }
2338 else
2339 *local_plt = (bfd_vma) -1;
2340 }
2341 }
30667bf3 2342 }
68ffbac6 2343
9b52905e
NC
2344 if (htab->tls_ldm_got.refcount > 0)
2345 {
68ffbac6 2346 /* Allocate 2 got entries and 1 dynamic reloc for
9b52905e
NC
2347 R_PARISC_TLS_DTPMOD32 relocs. */
2348 htab->tls_ldm_got.offset = htab->sgot->size;
2349 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2350 htab->srelgot->size += sizeof (Elf32_External_Rela);
2351 }
2352 else
2353 htab->tls_ldm_got.offset = -1;
30667bf3 2354
e5ee5df1
AM
2355 /* Do all the .plt entries without relocs first. The dynamic linker
2356 uses the last .plt reloc to find the end of the .plt (and hence
2357 the start of the .got) for lazy linking. */
a63e02c7 2358 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2359
98ceb8ce
AM
2360 /* Allocate global sym .plt and .got entries, and space for global
2361 sym dynamic relocs. */
a63e02c7 2362 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2363
2364 /* The check_relocs and adjust_dynamic_symbol entry points have
2365 determined the sizes of the various dynamic sections. Allocate
2366 memory for them. */
b34976b6 2367 relocs = FALSE;
875c0872 2368 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2369 {
875c0872 2370 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2371 continue;
2372
875c0872 2373 if (sec == htab->splt)
68fb2e56 2374 {
83c81bfe 2375 if (htab->need_plt_stub)
68fb2e56
AM
2376 {
2377 /* Make space for the plt stub at the end of the .plt
2378 section. We want this stub right at the end, up
2379 against the .got section. */
83c81bfe 2380 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2381 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2382 bfd_size_type mask;
30667bf3 2383
68fb2e56 2384 if (gotalign > pltalign)
a253d456 2385 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2386 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2387 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2388 }
2389 }
c456f082
AM
2390 else if (sec == htab->sgot
2391 || sec == htab->sdynbss)
68fb2e56 2392 ;
0112cd26 2393 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2394 {
875c0872 2395 if (sec->size != 0)
30667bf3 2396 {
4e12ff7f
AM
2397 /* Remember whether there are any reloc sections other
2398 than .rela.plt. */
875c0872 2399 if (sec != htab->srelplt)
b34976b6 2400 relocs = TRUE;
47d89dba 2401
30667bf3
AM
2402 /* We use the reloc_count field as a counter if we need
2403 to copy relocs into the output file. */
875c0872 2404 sec->reloc_count = 0;
30667bf3
AM
2405 }
2406 }
30667bf3
AM
2407 else
2408 {
2409 /* It's not one of our sections, so don't allocate space. */
2410 continue;
2411 }
2412
875c0872 2413 if (sec->size == 0)
30667bf3
AM
2414 {
2415 /* If we don't need this section, strip it from the
2416 output file. This is mostly to handle .rela.bss and
2417 .rela.plt. We must create both sections in
2418 create_dynamic_sections, because they must be created
2419 before the linker maps input sections to output
2420 sections. The linker does that before
2421 adjust_dynamic_symbol is called, and it is that
2422 function which decides whether anything needs to go
2423 into these sections. */
875c0872 2424 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2425 continue;
2426 }
2427
c456f082
AM
2428 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2429 continue;
2430
30667bf3
AM
2431 /* Allocate memory for the section contents. Zero it, because
2432 we may not fill in all the reloc sections. */
875c0872 2433 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2434 if (sec->contents == NULL)
b34976b6 2435 return FALSE;
30667bf3
AM
2436 }
2437
a63e02c7 2438 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2439 {
2440 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2441 actually has nothing to do with the PLT, it is how we
2442 communicate the LTP value of a load module to the dynamic
2443 linker. */
dc810e39 2444#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2445 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2446
2447 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2448 return FALSE;
30667bf3
AM
2449
2450 /* Add some entries to the .dynamic section. We fill in the
2451 values later, in elf32_hppa_finish_dynamic_sections, but we
2452 must add the entries now so that we get the correct size for
2453 the .dynamic section. The DT_DEBUG entry is filled in by the
2454 dynamic linker and used by the debugger. */
0e1862bb 2455 if (bfd_link_executable (info))
30667bf3 2456 {
dc810e39 2457 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2458 return FALSE;
30667bf3
AM
2459 }
2460
eea6121a 2461 if (htab->srelplt->size != 0)
30667bf3 2462 {
dc810e39
AM
2463 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2464 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2465 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2466 return FALSE;
30667bf3
AM
2467 }
2468
2469 if (relocs)
2470 {
dc810e39
AM
2471 if (!add_dynamic_entry (DT_RELA, 0)
2472 || !add_dynamic_entry (DT_RELASZ, 0)
2473 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2474 return FALSE;
30667bf3 2475
98ceb8ce
AM
2476 /* If any dynamic relocs apply to a read-only section,
2477 then we need a DT_TEXTREL entry. */
248866a8 2478 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2479 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2480
2481 if ((info->flags & DF_TEXTREL) != 0)
2482 {
2483 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2484 return FALSE;
98ceb8ce 2485 }
30667bf3
AM
2486 }
2487 }
dc810e39 2488#undef add_dynamic_entry
30667bf3 2489
b34976b6 2490 return TRUE;
30667bf3
AM
2491}
2492
30667bf3
AM
2493/* External entry points for sizing and building linker stubs. */
2494
b4655ea9
AM
2495/* Set up various things so that we can make a list of input sections
2496 for each output section included in the link. Returns -1 on error,
cedb70c5 2497 0 when no stubs will be needed, and 1 on success. */
30667bf3 2498
b4655ea9 2499int
c39a58e6 2500elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2501{
2502 bfd *input_bfd;
b4655ea9 2503 unsigned int bfd_count;
7292b3ac 2504 unsigned int top_id, top_index;
30667bf3 2505 asection *section;
25f72752 2506 asection **input_list, **list;
dc810e39 2507 bfd_size_type amt;
b4655ea9 2508 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2509
4dfe6ac6
NC
2510 if (htab == NULL)
2511 return -1;
2512
1badb539
AM
2513 /* Count the number of input BFDs and find the top input section id. */
2514 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3 2515 input_bfd != NULL;
c72f2fb2 2516 input_bfd = input_bfd->link.next)
30667bf3
AM
2517 {
2518 bfd_count += 1;
25f72752
AM
2519 for (section = input_bfd->sections;
2520 section != NULL;
2521 section = section->next)
2522 {
2523 if (top_id < section->id)
2524 top_id = section->id;
2525 }
30667bf3 2526 }
b4655ea9 2527 htab->bfd_count = bfd_count;
30667bf3 2528
dc810e39 2529 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2530 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2531 if (htab->stub_group == NULL)
b4655ea9 2532 return -1;
1badb539 2533
b4655ea9 2534 /* We can't use output_bfd->section_count here to find the top output
1badb539 2535 section index as some sections may have been removed, and
8423293d 2536 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2537 for (section = output_bfd->sections, top_index = 0;
2538 section != NULL;
2539 section = section->next)
2540 {
2541 if (top_index < section->index)
2542 top_index = section->index;
2543 }
2544
b4655ea9 2545 htab->top_index = top_index;
dc810e39 2546 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2547 input_list = bfd_malloc (amt);
b4655ea9 2548 htab->input_list = input_list;
25f72752 2549 if (input_list == NULL)
b4655ea9 2550 return -1;
25f72752 2551
1badb539
AM
2552 /* For sections we aren't interested in, mark their entries with a
2553 value we can check later. */
2554 list = input_list + top_index;
2555 do
2556 *list = bfd_abs_section_ptr;
2557 while (list-- != input_list);
2558
2559 for (section = output_bfd->sections;
2560 section != NULL;
2561 section = section->next)
2562 {
47d89dba 2563 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2564 input_list[section->index] = NULL;
2565 }
2566
b4655ea9
AM
2567 return 1;
2568}
2569
2570/* The linker repeatedly calls this function for each input section,
2571 in the order that input sections are linked into output sections.
2572 Build lists of input sections to determine groupings between which
2573 we may insert linker stubs. */
2574
2575void
c39a58e6 2576elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2577{
2578 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2579
4dfe6ac6
NC
2580 if (htab == NULL)
2581 return;
2582
b4655ea9 2583 if (isec->output_section->index <= htab->top_index)
25f72752 2584 {
b4655ea9
AM
2585 asection **list = htab->input_list + isec->output_section->index;
2586 if (*list != bfd_abs_section_ptr)
25f72752 2587 {
b4655ea9 2588 /* Steal the link_sec pointer for our list. */
83c81bfe 2589#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2590 /* This happens to make the list in reverse order,
2591 which is what we want. */
2592 PREV_SEC (isec) = *list;
2593 *list = isec;
25f72752
AM
2594 }
2595 }
b4655ea9 2596}
25f72752 2597
b4655ea9
AM
2598/* See whether we can group stub sections together. Grouping stub
2599 sections may result in fewer stubs. More importantly, we need to
2600 put all .init* and .fini* stubs at the beginning of the .init or
2601 .fini output sections respectively, because glibc splits the
2602 _init and _fini functions into multiple parts. Putting a stub in
2603 the middle of a function is not a good idea. */
2604
2605static void
c39a58e6
AM
2606group_sections (struct elf32_hppa_link_hash_table *htab,
2607 bfd_size_type stub_group_size,
2608 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2609{
2610 asection **list = htab->input_list + htab->top_index;
1badb539 2611 do
25f72752
AM
2612 {
2613 asection *tail = *list;
1badb539
AM
2614 if (tail == bfd_abs_section_ptr)
2615 continue;
25f72752
AM
2616 while (tail != NULL)
2617 {
2618 asection *curr;
2619 asection *prev;
2620 bfd_size_type total;
00b28bb0 2621 bfd_boolean big_sec;
25f72752
AM
2622
2623 curr = tail;
eea6121a 2624 total = tail->size;
00b28bb0
AM
2625 big_sec = total >= stub_group_size;
2626
25f72752
AM
2627 while ((prev = PREV_SEC (curr)) != NULL
2628 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2629 < stub_group_size))
25f72752
AM
2630 curr = prev;
2631
2632 /* OK, the size from the start of CURR to the end is less
a248e267 2633 than 240000 bytes and thus can be handled by one stub
25f72752 2634 section. (or the tail section is itself larger than
a248e267 2635 240000 bytes, in which case we may be toast.)
25f72752
AM
2636 We should really be keeping track of the total size of
2637 stubs added here, as stubs contribute to the final output
2638 section size. That's a little tricky, and this way will
a248e267
AM
2639 only break if stubs added total more than 22144 bytes, or
2640 2768 long branch stubs. It seems unlikely for more than
2641 2768 different functions to be called, especially from
2642 code only 240000 bytes long. This limit used to be
2643 250000, but c++ code tends to generate lots of little
2644 functions, and sometimes violated the assumption. */
25f72752
AM
2645 do
2646 {
2647 prev = PREV_SEC (tail);
2648 /* Set up this stub group. */
83c81bfe 2649 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2650 }
2651 while (tail != curr && (tail = prev) != NULL);
2652
a248e267 2653 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2654 bytes before the stub section can be handled by it too.
2655 Don't do this if we have a really large section after the
2656 stubs, as adding more stubs increases the chance that
2657 branches may not reach into the stub section. */
2658 if (!stubs_always_before_branch && !big_sec)
25f72752 2659 {
47d89dba
AM
2660 total = 0;
2661 while (prev != NULL
2662 && ((total += tail->output_offset - prev->output_offset)
2663 < stub_group_size))
2664 {
2665 tail = prev;
2666 prev = PREV_SEC (tail);
83c81bfe 2667 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2668 }
25f72752
AM
2669 }
2670 tail = prev;
2671 }
2672 }
b4655ea9
AM
2673 while (list-- != htab->input_list);
2674 free (htab->input_list);
1badb539 2675#undef PREV_SEC
b4655ea9
AM
2676}
2677
2678/* Read in all local syms for all input bfds, and create hash entries
2679 for export stubs if we are building a multi-subspace shared lib.
2680 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2681
2682static int
c39a58e6 2683get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2684{
2685 unsigned int bfd_indx;
2686 Elf_Internal_Sym *local_syms, **all_local_syms;
2687 int stub_changed = 0;
2688 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2689
4dfe6ac6
NC
2690 if (htab == NULL)
2691 return -1;
2692
30667bf3
AM
2693 /* We want to read in symbol extension records only once. To do this
2694 we need to read in the local symbols in parallel and save them for
2695 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2696 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2697 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2698 htab->all_local_syms = all_local_syms;
30667bf3 2699 if (all_local_syms == NULL)
b4655ea9 2700 return -1;
30667bf3
AM
2701
2702 /* Walk over all the input BFDs, swapping in local symbols.
2703 If we are creating a shared library, create hash entries for the
2704 export stubs. */
b4655ea9 2705 for (bfd_indx = 0;
30667bf3 2706 input_bfd != NULL;
c72f2fb2 2707 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2708 {
2709 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2710
252b5132
RH
2711 /* We'll need the symbol table in a second. */
2712 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2713 if (symtab_hdr->sh_info == 0)
2714 continue;
2715
6cdc0ccc
AM
2716 /* We need an array of the local symbols attached to the input bfd. */
2717 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2718 if (local_syms == NULL)
edd21aca 2719 {
6cdc0ccc
AM
2720 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2721 symtab_hdr->sh_info, 0,
2722 NULL, NULL, NULL);
2723 /* Cache them for elf_link_input_bfd. */
2724 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2725 }
6cdc0ccc
AM
2726 if (local_syms == NULL)
2727 return -1;
edd21aca 2728
6cdc0ccc 2729 all_local_syms[bfd_indx] = local_syms;
edd21aca 2730
0e1862bb 2731 if (bfd_link_pic (info) && htab->multi_subspace)
30667bf3 2732 {
875c0872
DA
2733 struct elf_link_hash_entry **eh_syms;
2734 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2735 unsigned int symcount;
2736
2737 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2738 - symtab_hdr->sh_info);
875c0872
DA
2739 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2740 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2741
2742 /* Look through the global syms for functions; We need to
2743 build export stubs for all globally visible functions. */
875c0872 2744 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2745 {
875c0872 2746 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2747
875c0872 2748 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2749
a63e02c7
DA
2750 while (hh->eh.root.type == bfd_link_hash_indirect
2751 || hh->eh.root.type == bfd_link_hash_warning)
2752 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2753
2754 /* At this point in the link, undefined syms have been
2755 resolved, so we need to check that the symbol was
2756 defined in this BFD. */
a63e02c7
DA
2757 if ((hh->eh.root.type == bfd_link_hash_defined
2758 || hh->eh.root.type == bfd_link_hash_defweak)
2759 && hh->eh.type == STT_FUNC
2760 && hh->eh.root.u.def.section->output_section != NULL
2761 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2762 == output_bfd)
a63e02c7
DA
2763 && hh->eh.root.u.def.section->owner == input_bfd
2764 && hh->eh.def_regular
2765 && !hh->eh.forced_local
2766 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2767 {
2768 asection *sec;
2769 const char *stub_name;
875c0872 2770 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2771
a63e02c7 2772 sec = hh->eh.root.u.def.section;
9b52905e 2773 stub_name = hh_name (hh);
a63e02c7 2774 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2775 stub_name,
b34976b6 2776 FALSE, FALSE);
875c0872 2777 if (hsh == NULL)
30667bf3 2778 {
875c0872
DA
2779 hsh = hppa_add_stub (stub_name, sec, htab);
2780 if (!hsh)
b4655ea9 2781 return -1;
30667bf3 2782
a63e02c7
DA
2783 hsh->target_value = hh->eh.root.u.def.value;
2784 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2785 hsh->stub_type = hppa_stub_export;
a63e02c7 2786 hsh->hh = hh;
30667bf3
AM
2787 stub_changed = 1;
2788 }
2789 else
2790 {
4eca0228
AM
2791 _bfd_error_handler (_("%B: duplicate export stub %s"),
2792 input_bfd, stub_name);
30667bf3
AM
2793 }
2794 }
2795 }
30667bf3
AM
2796 }
2797 }
edd21aca 2798
b4655ea9
AM
2799 return stub_changed;
2800}
2801
2802/* Determine and set the size of the stub section for a final link.
2803
2804 The basic idea here is to examine all the relocations looking for
2805 PC-relative calls to a target that is unreachable with a "bl"
2806 instruction. */
2807
b34976b6 2808bfd_boolean
c39a58e6
AM
2809elf32_hppa_size_stubs
2810 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2811 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2812 asection * (*add_stub_section) (const char *, asection *),
2813 void (*layout_sections_again) (void))
b4655ea9
AM
2814{
2815 bfd_size_type stub_group_size;
b34976b6
AM
2816 bfd_boolean stubs_always_before_branch;
2817 bfd_boolean stub_changed;
b4655ea9
AM
2818 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2819
4dfe6ac6
NC
2820 if (htab == NULL)
2821 return FALSE;
2822
b4655ea9
AM
2823 /* Stash our params away. */
2824 htab->stub_bfd = stub_bfd;
2825 htab->multi_subspace = multi_subspace;
2826 htab->add_stub_section = add_stub_section;
2827 htab->layout_sections_again = layout_sections_again;
2828 stubs_always_before_branch = group_size < 0;
2829 if (group_size < 0)
2830 stub_group_size = -group_size;
2831 else
2832 stub_group_size = group_size;
2833 if (stub_group_size == 1)
2834 {
2835 /* Default values. */
acc990f2
AM
2836 if (stubs_always_before_branch)
2837 {
2838 stub_group_size = 7680000;
2839 if (htab->has_17bit_branch || htab->multi_subspace)
2840 stub_group_size = 240000;
2841 if (htab->has_12bit_branch)
2842 stub_group_size = 7500;
2843 }
2844 else
2845 {
2846 stub_group_size = 6971392;
2847 if (htab->has_17bit_branch || htab->multi_subspace)
2848 stub_group_size = 217856;
2849 if (htab->has_12bit_branch)
2850 stub_group_size = 6808;
2851 }
b4655ea9
AM
2852 }
2853
2854 group_sections (htab, stub_group_size, stubs_always_before_branch);
2855
2856 switch (get_local_syms (output_bfd, info->input_bfds, info))
2857 {
2858 default:
2859 if (htab->all_local_syms)
2860 goto error_ret_free_local;
b34976b6 2861 return FALSE;
b4655ea9
AM
2862
2863 case 0:
b34976b6 2864 stub_changed = FALSE;
b4655ea9
AM
2865 break;
2866
2867 case 1:
b34976b6 2868 stub_changed = TRUE;
b4655ea9
AM
2869 break;
2870 }
2871
edd21aca
AM
2872 while (1)
2873 {
b4655ea9
AM
2874 bfd *input_bfd;
2875 unsigned int bfd_indx;
30667bf3
AM
2876 asection *stub_sec;
2877
25f72752 2878 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2879 input_bfd != NULL;
c72f2fb2 2880 input_bfd = input_bfd->link.next, bfd_indx++)
30667bf3
AM
2881 {
2882 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2883 asection *section;
2884 Elf_Internal_Sym *local_syms;
30667bf3
AM
2885
2886 /* We'll need the symbol table in a second. */
2887 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2888 if (symtab_hdr->sh_info == 0)
2889 continue;
2890
b4655ea9 2891 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2892
2893 /* Walk over each section attached to the input bfd. */
2894 for (section = input_bfd->sections;
2895 section != NULL;
25f72752 2896 section = section->next)
30667bf3 2897 {
30667bf3
AM
2898 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2899
2900 /* If there aren't any relocs, then there's nothing more
2901 to do. */
2902 if ((section->flags & SEC_RELOC) == 0
2903 || section->reloc_count == 0)
2904 continue;
2905
25f72752
AM
2906 /* If this section is a link-once section that will be
2907 discarded, then don't create any stubs. */
2908 if (section->output_section == NULL
2909 || section->output_section->owner != output_bfd)
2910 continue;
2911
1e2f5b6e
AM
2912 /* Get the relocs. */
2913 internal_relocs
c39a58e6 2914 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2915 info->keep_memory);
30667bf3 2916 if (internal_relocs == NULL)
1e2f5b6e 2917 goto error_ret_free_local;
30667bf3
AM
2918
2919 /* Now examine each relocation. */
2920 irela = internal_relocs;
2921 irelaend = irela + section->reloc_count;
2922 for (; irela < irelaend; irela++)
2923 {
2924 unsigned int r_type, r_indx;
2925 enum elf32_hppa_stub_type stub_type;
875c0872 2926 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2927 asection *sym_sec;
2928 bfd_vma sym_value;
2929 bfd_vma destination;
875c0872 2930 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2931 char *stub_name;
25f72752 2932 const asection *id_sec;
30667bf3
AM
2933
2934 r_type = ELF32_R_TYPE (irela->r_info);
2935 r_indx = ELF32_R_SYM (irela->r_info);
2936
2937 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2938 {
2939 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2940 error_ret_free_internal:
2941 if (elf_section_data (section)->relocs == NULL)
2942 free (internal_relocs);
2943 goto error_ret_free_local;
30667bf3
AM
2944 }
2945
2946 /* Only look for stubs on call instructions. */
2947 if (r_type != (unsigned int) R_PARISC_PCREL12F
2948 && r_type != (unsigned int) R_PARISC_PCREL17F
2949 && r_type != (unsigned int) R_PARISC_PCREL22F)
2950 continue;
2951
2952 /* Now determine the call target, its name, value,
2953 section. */
2954 sym_sec = NULL;
2955 sym_value = 0;
2956 destination = 0;
875c0872 2957 hh = NULL;
30667bf3
AM
2958 if (r_indx < symtab_hdr->sh_info)
2959 {
2960 /* It's a local symbol. */
2961 Elf_Internal_Sym *sym;
2962 Elf_Internal_Shdr *hdr;
4fbb74a6 2963 unsigned int shndx;
30667bf3
AM
2964
2965 sym = local_syms + r_indx;
30667bf3
AM
2966 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2967 sym_value = sym->st_value;
4fbb74a6
AM
2968 shndx = sym->st_shndx;
2969 if (shndx < elf_numsections (input_bfd))
2970 {
2971 hdr = elf_elfsections (input_bfd)[shndx];
2972 sym_sec = hdr->bfd_section;
2973 destination = (sym_value + irela->r_addend
2974 + sym_sec->output_offset
2975 + sym_sec->output_section->vma);
2976 }
30667bf3
AM
2977 }
2978 else
2979 {
2980 /* It's an external symbol. */
2981 int e_indx;
2982
2983 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2984 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2985
a63e02c7
DA
2986 while (hh->eh.root.type == bfd_link_hash_indirect
2987 || hh->eh.root.type == bfd_link_hash_warning)
2988 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2989
a63e02c7
DA
2990 if (hh->eh.root.type == bfd_link_hash_defined
2991 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2992 {
a63e02c7
DA
2993 sym_sec = hh->eh.root.u.def.section;
2994 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2995 if (sym_sec->output_section != NULL)
2996 destination = (sym_value + irela->r_addend
2997 + sym_sec->output_offset
2998 + sym_sec->output_section->vma);
2999 }
a63e02c7 3000 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a 3001 {
0e1862bb 3002 if (! bfd_link_pic (info))
c432ba1a
AM
3003 continue;
3004 }
a63e02c7 3005 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 3006 {
59c2e50f 3007 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 3008 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3009 == STV_DEFAULT)
a63e02c7 3010 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3011 continue;
3012 }
30667bf3
AM
3013 else
3014 {
3015 bfd_set_error (bfd_error_bad_value);
3016 goto error_ret_free_internal;
3017 }
3018 }
3019
3020 /* Determine what (if any) linker stub is needed. */
875c0872 3021 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3022 destination, info);
30667bf3
AM
3023 if (stub_type == hppa_stub_none)
3024 continue;
3025
25f72752 3026 /* Support for grouping stub sections. */
83c81bfe 3027 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3028
30667bf3 3029 /* Get the name of this stub. */
875c0872 3030 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3031 if (!stub_name)
3032 goto error_ret_free_internal;
3033
a63e02c7 3034 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3035 stub_name,
b34976b6 3036 FALSE, FALSE);
875c0872 3037 if (hsh != NULL)
30667bf3
AM
3038 {
3039 /* The proper stub has already been created. */
3040 free (stub_name);
3041 continue;
3042 }
3043
875c0872
DA
3044 hsh = hppa_add_stub (stub_name, section, htab);
3045 if (hsh == NULL)
30667bf3
AM
3046 {
3047 free (stub_name);
1e2f5b6e 3048 goto error_ret_free_internal;
30667bf3
AM
3049 }
3050
875c0872
DA
3051 hsh->target_value = sym_value;
3052 hsh->target_section = sym_sec;
3053 hsh->stub_type = stub_type;
0e1862bb 3054 if (bfd_link_pic (info))
30667bf3
AM
3055 {
3056 if (stub_type == hppa_stub_import)
875c0872 3057 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3058 else if (stub_type == hppa_stub_long_branch)
875c0872 3059 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3060 }
a63e02c7 3061 hsh->hh = hh;
b34976b6 3062 stub_changed = TRUE;
30667bf3
AM
3063 }
3064
3065 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3066 if (elf_section_data (section)->relocs == NULL)
3067 free (internal_relocs);
30667bf3
AM
3068 }
3069 }
3070
3071 if (!stub_changed)
3072 break;
3073
3074 /* OK, we've added some stubs. Find out the new size of the
3075 stub sections. */
83c81bfe 3076 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3077 stub_sec != NULL;
3078 stub_sec = stub_sec->next)
a464198b
AM
3079 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3080 stub_sec->size = 0;
74d1c347 3081
a63e02c7 3082 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3083
30667bf3 3084 /* Ask the linker to do its stuff. */
83c81bfe 3085 (*htab->layout_sections_again) ();
b34976b6 3086 stub_changed = FALSE;
30667bf3
AM
3087 }
3088
6cdc0ccc 3089 free (htab->all_local_syms);
b34976b6 3090 return TRUE;
30667bf3
AM
3091
3092 error_ret_free_local:
b4655ea9 3093 free (htab->all_local_syms);
b34976b6 3094 return FALSE;
30667bf3
AM
3095}
3096
30667bf3
AM
3097/* For a final link, this function is called after we have sized the
3098 stubs to provide a value for __gp. */
3099
b34976b6 3100bfd_boolean
c39a58e6 3101elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3102{
b4655ea9
AM
3103 struct bfd_link_hash_entry *h;
3104 asection *sec = NULL;
3105 bfd_vma gp_val = 0;
83c81bfe 3106 struct elf32_hppa_link_hash_table *htab;
30667bf3 3107
83c81bfe 3108 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3109 if (htab == NULL)
3110 return FALSE;
3111
a63e02c7 3112 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3113
df8634e3 3114 if (h != NULL
b4655ea9
AM
3115 && (h->type == bfd_link_hash_defined
3116 || h->type == bfd_link_hash_defweak))
30667bf3 3117 {
b4655ea9
AM
3118 gp_val = h->u.def.value;
3119 sec = h->u.def.section;
30667bf3
AM
3120 }
3121 else
3122 {
0eddce27
AM
3123 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3124 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3125
74d1c347
AM
3126 /* Choose to point our LTP at, in this order, one of .plt, .got,
3127 or .data, if these sections exist. In the case of choosing
3128 .plt try to make the LTP ideal for addressing anywhere in the
3129 .plt or .got with a 14 bit signed offset. Typically, the end
3130 of the .plt is the start of the .got, so choose .plt + 0x2000
3131 if either the .plt or .got is larger than 0x2000. If both
3132 the .plt and .got are smaller than 0x2000, choose the end of
3133 the .plt section. */
225247f0
JT
3134 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3135 ? NULL : splt;
74d1c347 3136 if (sec != NULL)
30667bf3 3137 {
eea6121a
AM
3138 gp_val = sec->size;
3139 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3140 {
3141 gp_val = 0x2000;
3142 }
3143 }
3144 else
3145 {
b4655ea9 3146 sec = sgot;
74d1c347
AM
3147 if (sec != NULL)
3148 {
225247f0
JT
3149 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3150 {
3151 /* We know we don't have a .plt. If .got is large,
3152 offset our LTP. */
3153 if (sec->size > 0x2000)
3154 gp_val = 0x2000;
3155 }
74d1c347
AM
3156 }
3157 else
3158 {
3159 /* No .plt or .got. Who cares what the LTP is? */
3160 sec = bfd_get_section_by_name (abfd, ".data");
3161 }
30667bf3 3162 }
df8634e3
AM
3163
3164 if (h != NULL)
3165 {
b4655ea9
AM
3166 h->type = bfd_link_hash_defined;
3167 h->u.def.value = gp_val;
df8634e3 3168 if (sec != NULL)
b4655ea9 3169 h->u.def.section = sec;
df8634e3 3170 else
b4655ea9 3171 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3172 }
30667bf3
AM
3173 }
3174
b32b5d6e 3175 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3176 gp_val += sec->output_section->vma + sec->output_offset;
3177
3178 elf_gp (abfd) = gp_val;
b34976b6 3179 return TRUE;
30667bf3
AM
3180}
3181
30667bf3
AM
3182/* Build all the stubs associated with the current output file. The
3183 stubs are kept in a hash table attached to the main linker hash
3184 table. We also set up the .plt entries for statically linked PIC
3185 functions here. This function is called via hppaelf_finish in the
3186 linker. */
3187
b34976b6 3188bfd_boolean
c39a58e6 3189elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3190{
3191 asection *stub_sec;
3192 struct bfd_hash_table *table;
83c81bfe 3193 struct elf32_hppa_link_hash_table *htab;
30667bf3 3194
83c81bfe 3195 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3196 if (htab == NULL)
3197 return FALSE;
30667bf3 3198
83c81bfe 3199 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3200 stub_sec != NULL;
3201 stub_sec = stub_sec->next)
a464198b
AM
3202 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3203 && stub_sec->size != 0)
3204 {
3205 /* Allocate memory to hold the linker stubs. */
3206 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3207 if (stub_sec->contents == NULL)
3208 return FALSE;
3209 stub_sec->size = 0;
3210 }
30667bf3
AM
3211
3212 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3213 table = &htab->bstab;
30667bf3
AM
3214 bfd_hash_traverse (table, hppa_build_one_stub, info);
3215
b34976b6 3216 return TRUE;
30667bf3
AM
3217}
3218
9b52905e 3219/* Return the base vma address which should be subtracted from the real
68ffbac6 3220 address when resolving a dtpoff relocation.
9b52905e
NC
3221 This is PT_TLS segment p_vaddr. */
3222
3223static bfd_vma
3224dtpoff_base (struct bfd_link_info *info)
3225{
3226 /* If tls_sec is NULL, we should have signalled an error already. */
3227 if (elf_hash_table (info)->tls_sec == NULL)
3228 return 0;
3229 return elf_hash_table (info)->tls_sec->vma;
3230}
3231
3232/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3233
3234static bfd_vma
3235tpoff (struct bfd_link_info *info, bfd_vma address)
3236{
3237 struct elf_link_hash_table *htab = elf_hash_table (info);
3238
3239 /* If tls_sec is NULL, we should have signalled an error already. */
3240 if (htab->tls_sec == NULL)
3241 return 0;
68ffbac6 3242 /* hppa TLS ABI is variant I and static TLS block start just after
9b52905e 3243 tcbhead structure which has 2 pointer fields. */
68ffbac6 3244 return (address - htab->tls_sec->vma
9b52905e
NC
3245 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3246}
3247
c46b7515
AM
3248/* Perform a final link. */
3249
b34976b6 3250static bfd_boolean
c39a58e6 3251elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3252{
6d4b2867
JDA
3253 struct stat buf;
3254
4dc86686 3255 /* Invoke the regular ELF linker to do all the work. */
c152c796 3256 if (!bfd_elf_final_link (abfd, info))
b34976b6 3257 return FALSE;
c46b7515
AM
3258
3259 /* If we're producing a final executable, sort the contents of the
985142a4 3260 unwind section. */
0e1862bb 3261 if (bfd_link_relocatable (info))
d9f40817
DA
3262 return TRUE;
3263
6d4b2867
JDA
3264 /* Do not attempt to sort non-regular files. This is here
3265 especially for configure scripts and kernel builds which run
3266 tests with "ld [...] -o /dev/null". */
3267 if (stat (abfd->filename, &buf) != 0
3268 || !S_ISREG(buf.st_mode))
3269 return TRUE;
3270
46fe4e66 3271 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3272}
3273
3274/* Record the lowest address for the data and text segments. */
3275
3276static void
2ea37f1c 3277hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3278{
83c81bfe 3279 struct elf32_hppa_link_hash_table *htab;
c46b7515 3280
875c0872 3281 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3282 if (htab == NULL)
3283 return;
c46b7515
AM
3284
3285 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3286 {
2ea37f1c
NC
3287 bfd_vma value;
3288 Elf_Internal_Phdr *p;
3289
3290 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3291 BFD_ASSERT (p != NULL);
3292 value = p->p_vaddr;
c46b7515
AM
3293
3294 if ((section->flags & SEC_READONLY) != 0)
3295 {
83c81bfe
AM
3296 if (value < htab->text_segment_base)
3297 htab->text_segment_base = value;
c46b7515
AM
3298 }
3299 else
3300 {
83c81bfe
AM
3301 if (value < htab->data_segment_base)
3302 htab->data_segment_base = value;
c46b7515
AM
3303 }
3304 }
3305}
3306
30667bf3
AM
3307/* Perform a relocation as part of a final link. */
3308
3309static bfd_reloc_status_type
c39a58e6
AM
3310final_link_relocate (asection *input_section,
3311 bfd_byte *contents,
875c0872 3312 const Elf_Internal_Rela *rela,
c39a58e6
AM
3313 bfd_vma value,
3314 struct elf32_hppa_link_hash_table *htab,
3315 asection *sym_sec,
875c0872 3316 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3317 struct bfd_link_info *info)
30667bf3
AM
3318{
3319 int insn;
875c0872 3320 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3321 unsigned int orig_r_type = r_type;
30667bf3
AM
3322 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3323 int r_format = howto->bitsize;
3324 enum hppa_reloc_field_selector_type_alt r_field;
3325 bfd *input_bfd = input_section->owner;
875c0872 3326 bfd_vma offset = rela->r_offset;
30667bf3
AM
3327 bfd_vma max_branch_offset = 0;
3328 bfd_byte *hit_data = contents + offset;
875c0872 3329 bfd_signed_vma addend = rela->r_addend;
30667bf3 3330 bfd_vma location;
875c0872 3331 struct elf32_hppa_stub_hash_entry *hsh = NULL;
68ffbac6 3332 int val;
30667bf3
AM
3333
3334 if (r_type == R_PARISC_NONE)
3335 return bfd_reloc_ok;
3336
3337 insn = bfd_get_32 (input_bfd, hit_data);
3338
3339 /* Find out where we are and where we're going. */
3340 location = (offset +
3341 input_section->output_offset +
3342 input_section->output_section->vma);
3343
a252afa4
DA
3344 /* If we are not building a shared library, convert DLTIND relocs to
3345 DPREL relocs. */
0e1862bb 3346 if (!bfd_link_pic (info))
a252afa4
DA
3347 {
3348 switch (r_type)
4fc8051d
AM
3349 {
3350 case R_PARISC_DLTIND21L:
143bb599
DA
3351 case R_PARISC_TLS_GD21L:
3352 case R_PARISC_TLS_LDM21L:
3353 case R_PARISC_TLS_IE21L:
4fc8051d 3354 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3355 break;
3356
4fc8051d 3357 case R_PARISC_DLTIND14R:
143bb599
DA
3358 case R_PARISC_TLS_GD14R:
3359 case R_PARISC_TLS_LDM14R:
3360 case R_PARISC_TLS_IE14R:
4fc8051d 3361 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3362 break;
3363
4fc8051d
AM
3364 case R_PARISC_DLTIND14F:
3365 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3366 break;
3367 }
3368 }
3369
30667bf3
AM
3370 switch (r_type)
3371 {
3372 case R_PARISC_PCREL12F:
3373 case R_PARISC_PCREL17F:
3374 case R_PARISC_PCREL22F:
067fa4a6
AM
3375 /* If this call should go via the plt, find the import stub in
3376 the stub hash. */
30667bf3
AM
3377 if (sym_sec == NULL
3378 || sym_sec->output_section == NULL
875c0872 3379 || (hh != NULL
a63e02c7
DA
3380 && hh->eh.plt.offset != (bfd_vma) -1
3381 && hh->eh.dynindx != -1
875c0872 3382 && !hh->plabel
0e1862bb 3383 && (bfd_link_pic (info)
a63e02c7
DA
3384 || !hh->eh.def_regular
3385 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3386 {
875c0872
DA
3387 hsh = hppa_get_stub_entry (input_section, sym_sec,
3388 hh, rela, htab);
3389 if (hsh != NULL)
30667bf3 3390 {
875c0872
DA
3391 value = (hsh->stub_offset
3392 + hsh->stub_sec->output_offset
3393 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3394 addend = 0;
3395 }
875c0872 3396 else if (sym_sec == NULL && hh != NULL
a63e02c7 3397 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3398 {
db20fd76
AM
3399 /* It's OK if undefined weak. Calls to undefined weak
3400 symbols behave as if the "called" function
3401 immediately returns. We can thus call to a weak
3402 function without first checking whether the function
3403 is defined. */
30667bf3 3404 value = location;
db20fd76 3405 addend = 8;
30667bf3
AM
3406 }
3407 else
f09ebc7d 3408 return bfd_reloc_undefined;
30667bf3
AM
3409 }
3410 /* Fall thru. */
3411
3412 case R_PARISC_PCREL21L:
3413 case R_PARISC_PCREL17C:
3414 case R_PARISC_PCREL17R:
3415 case R_PARISC_PCREL14R:
3416 case R_PARISC_PCREL14F:
36751eee 3417 case R_PARISC_PCREL32:
30667bf3
AM
3418 /* Make it a pc relative offset. */
3419 value -= location;
3420 addend -= 8;
3421 break;
3422
3423 case R_PARISC_DPREL21L:
3424 case R_PARISC_DPREL14R:
3425 case R_PARISC_DPREL14F:
a252afa4
DA
3426 /* Convert instructions that use the linkage table pointer (r19) to
3427 instructions that use the global data pointer (dp). This is the
3428 most efficient way of using PIC code in an incomplete executable,
3429 but the user must follow the standard runtime conventions for
3430 accessing data for this to work. */
143bb599 3431 if (orig_r_type != r_type)
a252afa4 3432 {
143bb599
DA
3433 if (r_type == R_PARISC_DPREL21L)
3434 {
3435 /* GCC sometimes uses a register other than r19 for the
3436 operation, so we must convert any addil instruction
3437 that uses this relocation. */
3438 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3439 insn = ADDIL_DP;
3440 else
3441 /* We must have a ldil instruction. It's too hard to find
3442 and convert the associated add instruction, so issue an
3443 error. */
4eca0228 3444 _bfd_error_handler
143bb599
DA
3445 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3446 input_bfd,
3447 input_section,
3448 (long) offset,
3449 howto->name,
3450 insn);
3451 }
3452 else if (r_type == R_PARISC_DPREL14F)
3453 {
3454 /* This must be a format 1 load/store. Change the base
3455 register to dp. */
3456 insn = (insn & 0xfc1ffff) | (27 << 21);
3457 }
a252afa4
DA
3458 }
3459
143bb599
DA
3460 /* For all the DP relative relocations, we need to examine the symbol's
3461 section. If it has no section or if it's a code section, then
3462 "data pointer relative" makes no sense. In that case we don't
3463 adjust the "value", and for 21 bit addil instructions, we change the
3464 source addend register from %dp to %r0. This situation commonly
3465 arises for undefined weak symbols and when a variable's "constness"
3466 is declared differently from the way the variable is defined. For
3467 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3468 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3469 {
3470 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3471 == (((int) OP_ADDIL << 26) | (27 << 21)))
3472 {
3473 insn &= ~ (0x1f << 21);
30667bf3
AM
3474 }
3475 /* Now try to make things easy for the dynamic linker. */
3476
3477 break;
3478 }
74d1c347 3479 /* Fall thru. */
30667bf3
AM
3480
3481 case R_PARISC_DLTIND21L:
3482 case R_PARISC_DLTIND14R:
3483 case R_PARISC_DLTIND14F:
143bb599
DA
3484 case R_PARISC_TLS_GD21L:
3485 case R_PARISC_TLS_LDM21L:
3486 case R_PARISC_TLS_IE21L:
9b52905e 3487 case R_PARISC_TLS_GD14R:
9b52905e 3488 case R_PARISC_TLS_LDM14R:
9b52905e 3489 case R_PARISC_TLS_IE14R:
30667bf3
AM
3490 value -= elf_gp (input_section->output_section->owner);
3491 break;
3492
c46b7515
AM
3493 case R_PARISC_SEGREL32:
3494 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3495 value -= htab->text_segment_base;
c46b7515 3496 else
83c81bfe 3497 value -= htab->data_segment_base;
c46b7515
AM
3498 break;
3499
30667bf3
AM
3500 default:
3501 break;
3502 }
3503
3504 switch (r_type)
3505 {
3506 case R_PARISC_DIR32:
47d89dba 3507 case R_PARISC_DIR14F:
30667bf3
AM
3508 case R_PARISC_DIR17F:
3509 case R_PARISC_PCREL17C:
3510 case R_PARISC_PCREL14F:
36751eee 3511 case R_PARISC_PCREL32:
30667bf3
AM
3512 case R_PARISC_DPREL14F:
3513 case R_PARISC_PLABEL32:
3514 case R_PARISC_DLTIND14F:
3515 case R_PARISC_SEGBASE:
3516 case R_PARISC_SEGREL32:
9b52905e
NC
3517 case R_PARISC_TLS_DTPMOD32:
3518 case R_PARISC_TLS_DTPOFF32:
3519 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3520 r_field = e_fsel;
3521 break;
3522
1bf42538 3523 case R_PARISC_DLTIND21L:
30667bf3 3524 case R_PARISC_PCREL21L:
30667bf3 3525 case R_PARISC_PLABEL21L:
1bf42538
JL
3526 r_field = e_lsel;
3527 break;
3528
3529 case R_PARISC_DIR21L:
3530 case R_PARISC_DPREL21L:
9b52905e
NC
3531 case R_PARISC_TLS_GD21L:
3532 case R_PARISC_TLS_LDM21L:
3533 case R_PARISC_TLS_LDO21L:
3534 case R_PARISC_TLS_IE21L:
3535 case R_PARISC_TLS_LE21L:
30667bf3
AM
3536 r_field = e_lrsel;
3537 break;
3538
30667bf3 3539 case R_PARISC_PCREL17R:
30667bf3 3540 case R_PARISC_PCREL14R:
30667bf3
AM
3541 case R_PARISC_PLABEL14R:
3542 case R_PARISC_DLTIND14R:
1bf42538
JL
3543 r_field = e_rsel;
3544 break;
3545
3546 case R_PARISC_DIR17R:
3547 case R_PARISC_DIR14R:
3548 case R_PARISC_DPREL14R:
9b52905e
NC
3549 case R_PARISC_TLS_GD14R:
3550 case R_PARISC_TLS_LDM14R:
3551 case R_PARISC_TLS_LDO14R:
3552 case R_PARISC_TLS_IE14R:
3553 case R_PARISC_TLS_LE14R:
30667bf3
AM
3554 r_field = e_rrsel;
3555 break;
3556
3557 case R_PARISC_PCREL12F:
3558 case R_PARISC_PCREL17F:
3559 case R_PARISC_PCREL22F:
3560 r_field = e_fsel;
3561
3562 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3563 {
3564 max_branch_offset = (1 << (17-1)) << 2;
3565 }
3566 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3567 {
3568 max_branch_offset = (1 << (12-1)) << 2;
3569 }
3570 else
3571 {
3572 max_branch_offset = (1 << (22-1)) << 2;
3573 }
3574
3575 /* sym_sec is NULL on undefined weak syms or when shared on
3576 undefined syms. We've already checked for a stub for the
3577 shared undefined case. */
3578 if (sym_sec == NULL)
3579 break;
3580
3581 /* If the branch is out of reach, then redirect the
3582 call to the local stub for this function. */
3583 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3584 {
875c0872
DA
3585 hsh = hppa_get_stub_entry (input_section, sym_sec,
3586 hh, rela, htab);
3587 if (hsh == NULL)
f09ebc7d 3588 return bfd_reloc_undefined;
30667bf3
AM
3589
3590 /* Munge up the value and addend so that we call the stub
3591 rather than the procedure directly. */
875c0872
DA
3592 value = (hsh->stub_offset
3593 + hsh->stub_sec->output_offset
3594 + hsh->stub_sec->output_section->vma
30667bf3
AM
3595 - location);
3596 addend = -8;
3597 }
3598 break;
3599
3600 /* Something we don't know how to handle. */
3601 default:
3602 return bfd_reloc_notsupported;
3603 }
3604
3605 /* Make sure we can reach the stub. */
3606 if (max_branch_offset != 0
3607 && value + addend + max_branch_offset >= 2*max_branch_offset)
3608 {
4eca0228 3609 _bfd_error_handler
d003868e
AM
3610 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3611 input_bfd,
3612 input_section,
d1fa68d3 3613 (long) offset,
a63e02c7 3614 hsh->bh_root.string);
ce757d15 3615 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3616 return bfd_reloc_notsupported;
3617 }
3618
3619 val = hppa_field_adjust (value, addend, r_field);
3620
3621 switch (r_type)
3622 {
3623 case R_PARISC_PCREL12F:
3624 case R_PARISC_PCREL17C:
3625 case R_PARISC_PCREL17F:
3626 case R_PARISC_PCREL17R:
3627 case R_PARISC_PCREL22F:
3628 case R_PARISC_DIR17F:
3629 case R_PARISC_DIR17R:
3630 /* This is a branch. Divide the offset by four.
3631 Note that we need to decide whether it's a branch or
3632 otherwise by inspecting the reloc. Inspecting insn won't
3633 work as insn might be from a .word directive. */
3634 val >>= 2;
3635 break;
3636
3637 default:
3638 break;
3639 }
3640
3641 insn = hppa_rebuild_insn (insn, val, r_format);
3642
3643 /* Update the instruction word. */
74d1c347 3644 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3645 return bfd_reloc_ok;
3646}
3647
30667bf3
AM
3648/* Relocate an HPPA ELF section. */
3649
b34976b6 3650static bfd_boolean
c39a58e6
AM
3651elf32_hppa_relocate_section (bfd *output_bfd,
3652 struct bfd_link_info *info,
3653 bfd *input_bfd,
3654 asection *input_section,
3655 bfd_byte *contents,
3656 Elf_Internal_Rela *relocs,
3657 Elf_Internal_Sym *local_syms,
3658 asection **local_sections)
30667bf3 3659{
30667bf3 3660 bfd_vma *local_got_offsets;
83c81bfe 3661 struct elf32_hppa_link_hash_table *htab;
30667bf3 3662 Elf_Internal_Shdr *symtab_hdr;
875c0872 3663 Elf_Internal_Rela *rela;
30667bf3 3664 Elf_Internal_Rela *relend;
30667bf3
AM
3665
3666 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3667
83c81bfe 3668 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3669 if (htab == NULL)
3670 return FALSE;
3671
74d1c347 3672 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3673
875c0872 3674 rela = relocs;
30667bf3 3675 relend = relocs + input_section->reloc_count;
875c0872 3676 for (; rela < relend; rela++)
30667bf3
AM
3677 {
3678 unsigned int r_type;
3679 reloc_howto_type *howto;
3680 unsigned int r_symndx;
875c0872 3681 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3682 Elf_Internal_Sym *sym;
3683 asection *sym_sec;
3684 bfd_vma relocation;
875c0872 3685 bfd_reloc_status_type rstatus;
30667bf3 3686 const char *sym_name;
b34976b6
AM
3687 bfd_boolean plabel;
3688 bfd_boolean warned_undef;
30667bf3 3689
875c0872 3690 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3691 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3692 {
3693 bfd_set_error (bfd_error_bad_value);
b34976b6 3694 return FALSE;
30667bf3
AM
3695 }
3696 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3697 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3698 continue;
3699
875c0872
DA
3700 r_symndx = ELF32_R_SYM (rela->r_info);
3701 hh = NULL;
30667bf3
AM
3702 sym = NULL;
3703 sym_sec = NULL;
b34976b6 3704 warned_undef = FALSE;
30667bf3
AM
3705 if (r_symndx < symtab_hdr->sh_info)
3706 {
3707 /* This is a local symbol, h defaults to NULL. */
3708 sym = local_syms + r_symndx;
3709 sym_sec = local_sections[r_symndx];
875c0872 3710 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3711 }
3712 else
3713 {
875c0872 3714 struct elf_link_hash_entry *eh;
62d887d4 3715 bfd_boolean unresolved_reloc, ignored;
b2a8e766 3716 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3717
875c0872 3718 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3719 r_symndx, symtab_hdr, sym_hashes,
875c0872 3720 eh, sym_sec, relocation,
62d887d4
L
3721 unresolved_reloc, warned_undef,
3722 ignored);
560e09e9 3723
0e1862bb 3724 if (!bfd_link_relocatable (info)
ab96bf03 3725 && relocation == 0
875c0872
DA
3726 && eh->root.type != bfd_link_hash_defined
3727 && eh->root.type != bfd_link_hash_defweak
3728 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3729 {
59c2e50f 3730 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3731 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3732 && eh->type == STT_PARISC_MILLI)
560e09e9 3733 {
1a72702b
AM
3734 (*info->callbacks->undefined_symbol)
3735 (info, eh_name (eh), input_bfd,
3736 input_section, rela->r_offset, FALSE);
560e09e9
NC
3737 warned_undef = TRUE;
3738 }
30667bf3 3739 }
875c0872 3740 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3741 }
3742
dbaa2011 3743 if (sym_sec != NULL && discarded_section (sym_sec))
e4067dbb 3744 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR
3745 rela, 1, relend,
3746 elf_hppa_howto_table + r_type, 0,
e4067dbb 3747 contents);
ab96bf03 3748
0e1862bb 3749 if (bfd_link_relocatable (info))
ab96bf03
AM
3750 continue;
3751
30667bf3 3752 /* Do any required modifications to the relocation value, and
25f72752
AM
3753 determine what types of dynamic info we need to output, if
3754 any. */
74d1c347 3755 plabel = 0;
30667bf3
AM
3756 switch (r_type)
3757 {
3758 case R_PARISC_DLTIND14F:
3759 case R_PARISC_DLTIND14R:
3760 case R_PARISC_DLTIND21L:
ce757d15
AM
3761 {
3762 bfd_vma off;
b34976b6 3763 bfd_boolean do_got = 0;
ce757d15
AM
3764
3765 /* Relocation is to the entry for this symbol in the
3766 global offset table. */
875c0872 3767 if (hh != NULL)
ce757d15 3768 {
b34976b6 3769 bfd_boolean dyn;
ce757d15 3770
a63e02c7
DA
3771 off = hh->eh.got.offset;
3772 dyn = htab->etab.dynamic_sections_created;
0e1862bb
L
3773 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3774 bfd_link_pic (info),
a63e02c7 3775 &hh->eh))
ce757d15
AM
3776 {
3777 /* If we aren't going to call finish_dynamic_symbol,
3778 then we need to handle initialisation of the .got
3779 entry and create needed relocs here. Since the
3780 offset must always be a multiple of 4, we use the
3781 least significant bit to record whether we have
3782 initialised it already. */
3783 if ((off & 1) != 0)
3784 off &= ~1;
3785 else
3786 {
a63e02c7 3787 hh->eh.got.offset |= 1;
ce757d15
AM
3788 do_got = 1;
3789 }
3790 }
3791 }
3792 else
3793 {
3794 /* Local symbol case. */
3795 if (local_got_offsets == NULL)
3796 abort ();
3797
3798 off = local_got_offsets[r_symndx];
3799
3800 /* The offset must always be a multiple of 4. We use
3801 the least significant bit to record whether we have
3802 already generated the necessary reloc. */
3803 if ((off & 1) != 0)
3804 off &= ~1;
3805 else
3806 {
3807 local_got_offsets[r_symndx] |= 1;
3808 do_got = 1;
3809 }
3810 }
68fb2e56 3811
ce757d15
AM
3812 if (do_got)
3813 {
0e1862bb 3814 if (bfd_link_pic (info))
ce757d15
AM
3815 {
3816 /* Output a dynamic relocation for this GOT entry.
3817 In this case it is relative to the base of the
3818 object because the symbol index is zero. */
3819 Elf_Internal_Rela outrel;
947216bf 3820 bfd_byte *loc;
875c0872 3821 asection *sec = htab->srelgot;
ce757d15
AM
3822
3823 outrel.r_offset = (off
3824 + htab->sgot->output_offset
3825 + htab->sgot->output_section->vma);
3826 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3827 outrel.r_addend = relocation;
875c0872
DA
3828 loc = sec->contents;
3829 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3830 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3831 }
3832 else
30667bf3 3833 bfd_put_32 (output_bfd, relocation,
83c81bfe 3834 htab->sgot->contents + off);
ce757d15 3835 }
30667bf3 3836
ce757d15
AM
3837 if (off >= (bfd_vma) -2)
3838 abort ();
30667bf3 3839
ce757d15
AM
3840 /* Add the base of the GOT to the relocation value. */
3841 relocation = (off
3842 + htab->sgot->output_offset
3843 + htab->sgot->output_section->vma);
3844 }
30667bf3 3845 break;
252b5132 3846
c46b7515
AM
3847 case R_PARISC_SEGREL32:
3848 /* If this is the first SEGREL relocation, then initialize
3849 the segment base values. */
83c81bfe
AM
3850 if (htab->text_segment_base == (bfd_vma) -1)
3851 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3852 break;
3853
30667bf3
AM
3854 case R_PARISC_PLABEL14R:
3855 case R_PARISC_PLABEL21L:
3856 case R_PARISC_PLABEL32:
a63e02c7 3857 if (htab->etab.dynamic_sections_created)
252b5132 3858 {
ce757d15 3859 bfd_vma off;
b34976b6 3860 bfd_boolean do_plt = 0;
74d1c347
AM
3861 /* If we have a global symbol with a PLT slot, then
3862 redirect this relocation to it. */
875c0872 3863 if (hh != NULL)
74d1c347 3864 {
a63e02c7 3865 off = hh->eh.plt.offset;
0e1862bb
L
3866 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3867 bfd_link_pic (info),
a63e02c7 3868 &hh->eh))
8dea1268
AM
3869 {
3870 /* In a non-shared link, adjust_dynamic_symbols
3871 isn't called for symbols forced local. We
dc810e39 3872 need to write out the plt entry here. */
8dea1268
AM
3873 if ((off & 1) != 0)
3874 off &= ~1;
3875 else
3876 {
a63e02c7 3877 hh->eh.plt.offset |= 1;
ce757d15 3878 do_plt = 1;
8dea1268
AM
3879 }
3880 }
74d1c347
AM
3881 }
3882 else
3883 {
68fb2e56
AM
3884 bfd_vma *local_plt_offsets;
3885
3886 if (local_got_offsets == NULL)
3887 abort ();
74d1c347 3888
68fb2e56
AM
3889 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3890 off = local_plt_offsets[r_symndx];
74d1c347
AM
3891
3892 /* As for the local .got entry case, we use the last
3893 bit to record whether we've already initialised
3894 this local .plt entry. */
3895 if ((off & 1) != 0)
3896 off &= ~1;
ce757d15
AM
3897 else
3898 {
3899 local_plt_offsets[r_symndx] |= 1;
3900 do_plt = 1;
3901 }
3902 }
3903
3904 if (do_plt)
3905 {
0e1862bb 3906 if (bfd_link_pic (info))
ce757d15
AM
3907 {
3908 /* Output a dynamic IPLT relocation for this
3909 PLT entry. */
3910 Elf_Internal_Rela outrel;
947216bf
AM
3911 bfd_byte *loc;
3912 asection *s = htab->srelplt;
ce757d15
AM
3913
3914 outrel.r_offset = (off
3915 + htab->splt->output_offset
3916 + htab->splt->output_section->vma);
3917 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3918 outrel.r_addend = relocation;
947216bf
AM
3919 loc = s->contents;
3920 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3921 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3922 }
74d1c347
AM
3923 else
3924 {
3925 bfd_put_32 (output_bfd,
3926 relocation,
83c81bfe 3927 htab->splt->contents + off);
74d1c347 3928 bfd_put_32 (output_bfd,
83c81bfe
AM
3929 elf_gp (htab->splt->output_section->owner),
3930 htab->splt->contents + off + 4);
74d1c347
AM
3931 }
3932 }
3933
68fb2e56 3934 if (off >= (bfd_vma) -2)
49e9d0d3 3935 abort ();
74d1c347
AM
3936
3937 /* PLABELs contain function pointers. Relocation is to
3938 the entry for the function in the .plt. The magic +2
3939 offset signals to $$dyncall that the function pointer
3940 is in the .plt and thus has a gp pointer too.
3941 Exception: Undefined PLABELs should have a value of
3942 zero. */
875c0872 3943 if (hh == NULL
a63e02c7
DA
3944 || (hh->eh.root.type != bfd_link_hash_undefweak
3945 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3946 {
3947 relocation = (off
83c81bfe
AM
3948 + htab->splt->output_offset
3949 + htab->splt->output_section->vma
74d1c347
AM
3950 + 2);
3951 }
3952 plabel = 1;
30667bf3
AM
3953 }
3954 /* Fall through and possibly emit a dynamic relocation. */
3955
3956 case R_PARISC_DIR17F:
3957 case R_PARISC_DIR17R:
47d89dba 3958 case R_PARISC_DIR14F:
30667bf3
AM
3959 case R_PARISC_DIR14R:
3960 case R_PARISC_DIR21L:
3961 case R_PARISC_DPREL14F:
3962 case R_PARISC_DPREL14R:
3963 case R_PARISC_DPREL21L:
3964 case R_PARISC_DIR32:
b1e24c02 3965 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3966 break;
3967
30667bf3 3968 /* The reloc types handled here and this conditional
56882138 3969 expression must match the code in ..check_relocs and
ec338859 3970 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3971 as in ..check_relocs, with some extra conditions (dynindx
3972 test in this case) to cater for relocs removed by
ec338859 3973 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3974 here does indeed match the one in ..check_relocs, the
3975 difference being that here we test DEF_DYNAMIC as well as
3976 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3977 which is why we can't use just that test here.
3978 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3979 there all files have not been loaded. */
0e1862bb 3980 if ((bfd_link_pic (info)
875c0872 3981 && (hh == NULL
a63e02c7
DA
3982 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3983 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3984 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3985 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
0e1862bb 3986 || (!bfd_link_pic (info)
875c0872 3987 && hh != NULL
a63e02c7
DA
3988 && hh->eh.dynindx != -1
3989 && !hh->eh.non_got_ref
4fc8051d 3990 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3991 && hh->eh.def_dynamic
3992 && !hh->eh.def_regular)
3993 || hh->eh.root.type == bfd_link_hash_undefweak
3994 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3995 {
3996 Elf_Internal_Rela outrel;
b34976b6 3997 bfd_boolean skip;
98ceb8ce 3998 asection *sreloc;
947216bf 3999 bfd_byte *loc;
252b5132 4000
30667bf3
AM
4001 /* When generating a shared object, these relocations
4002 are copied into the output file to be resolved at run
4003 time. */
252b5132 4004
875c0872 4005 outrel.r_addend = rela->r_addend;
c629eae0
JJ
4006 outrel.r_offset =
4007 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 4008 rela->r_offset);
0bb2d96a
JJ
4009 skip = (outrel.r_offset == (bfd_vma) -1
4010 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
4011 outrel.r_offset += (input_section->output_offset
4012 + input_section->output_section->vma);
68ffbac6 4013
30667bf3 4014 if (skip)
252b5132 4015 {
30667bf3 4016 memset (&outrel, 0, sizeof (outrel));
252b5132 4017 }
875c0872 4018 else if (hh != NULL
a63e02c7 4019 && hh->eh.dynindx != -1
74d1c347 4020 && (plabel
446f2863 4021 || !IS_ABSOLUTE_RELOC (r_type)
0e1862bb 4022 || !bfd_link_pic (info)
a496fbc8 4023 || !SYMBOLIC_BIND (info, &hh->eh)
a63e02c7 4024 || !hh->eh.def_regular))
252b5132 4025 {
a63e02c7 4026 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4027 }
4028 else /* It's a local symbol, or one marked to become local. */
4029 {
4030 int indx = 0;
edd21aca 4031
30667bf3
AM
4032 /* Add the absolute offset of the symbol. */
4033 outrel.r_addend += relocation;
edd21aca 4034
74d1c347
AM
4035 /* Global plabels need to be processed by the
4036 dynamic linker so that functions have at most one
4037 fptr. For this reason, we need to differentiate
4038 between global and local plabels, which we do by
4039 providing the function symbol for a global plabel
4040 reloc, and no symbol for local plabels. */
4041 if (! plabel
4042 && sym_sec != NULL
30667bf3
AM
4043 && sym_sec->output_section != NULL
4044 && ! bfd_is_abs_section (sym_sec))
252b5132 4045 {
74541ad4
AM
4046 asection *osec;
4047
4048 osec = sym_sec->output_section;
4049 indx = elf_section_data (osec)->dynindx;
4050 if (indx == 0)
4051 {
4052 osec = htab->etab.text_index_section;
4053 indx = elf_section_data (osec)->dynindx;
4054 }
4055 BFD_ASSERT (indx != 0);
4b71bec0 4056
30667bf3
AM
4057 /* We are turning this relocation into one
4058 against a section symbol, so subtract out the
4059 output section's address but not the offset
4060 of the input section in the output section. */
74541ad4 4061 outrel.r_addend -= osec->vma;
252b5132 4062 }
252b5132 4063
30667bf3
AM
4064 outrel.r_info = ELF32_R_INFO (indx, r_type);
4065 }
98ceb8ce
AM
4066 sreloc = elf_section_data (input_section)->sreloc;
4067 if (sreloc == NULL)
4068 abort ();
4069
947216bf
AM
4070 loc = sreloc->contents;
4071 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4072 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4073 }
4074 break;
68ffbac6 4075
9b52905e
NC
4076 case R_PARISC_TLS_LDM21L:
4077 case R_PARISC_TLS_LDM14R:
4078 {
4079 bfd_vma off;
68ffbac6 4080
9b52905e
NC
4081 off = htab->tls_ldm_got.offset;
4082 if (off & 1)
4083 off &= ~1;
4084 else
4085 {
4086 Elf_Internal_Rela outrel;
4087 bfd_byte *loc;
4088
68ffbac6 4089 outrel.r_offset = (off
9b52905e
NC
4090 + htab->sgot->output_section->vma
4091 + htab->sgot->output_offset);
4092 outrel.r_addend = 0;
4093 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
68ffbac6 4094 loc = htab->srelgot->contents;
9b52905e
NC
4095 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4096
4097 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4098 htab->tls_ldm_got.offset |= 1;
4099 }
4100
4101 /* Add the base of the GOT to the relocation value. */
4102 relocation = (off
4103 + htab->sgot->output_offset
4104 + htab->sgot->output_section->vma);
4105
4106 break;
4107 }
4108
4109 case R_PARISC_TLS_LDO21L:
4110 case R_PARISC_TLS_LDO14R:
4111 relocation -= dtpoff_base (info);
4112 break;
4113
4114 case R_PARISC_TLS_GD21L:
4115 case R_PARISC_TLS_GD14R:
4116 case R_PARISC_TLS_IE21L:
4117 case R_PARISC_TLS_IE14R:
4118 {
4119 bfd_vma off;
4120 int indx;
4121 char tls_type;
4122
4123 indx = 0;
4124 if (hh != NULL)
4125 {
4126 bfd_boolean dyn;
4127 dyn = htab->etab.dynamic_sections_created;
4128
0e1862bb
L
4129 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4130 bfd_link_pic (info),
4131 &hh->eh)
4132 && (!bfd_link_pic (info)
9b52905e
NC
4133 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4134 {
4135 indx = hh->eh.dynindx;
4136 }
4137 off = hh->eh.got.offset;
4138 tls_type = hh->tls_type;
4139 }
4140 else
4141 {
4142 off = local_got_offsets[r_symndx];
4143 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4144 }
4145
4146 if (tls_type == GOT_UNKNOWN)
4147 abort ();
4148
4149 if ((off & 1) != 0)
4150 off &= ~1;
4151 else
4152 {
4153 bfd_boolean need_relocs = FALSE;
4154 Elf_Internal_Rela outrel;
4155 bfd_byte *loc = NULL;
4156 int cur_off = off;
4157
4158 /* The GOT entries have not been initialized yet. Do it
4159 now, and emit any relocations. If both an IE GOT and a
4160 GD GOT are necessary, we emit the GD first. */
4161
0e1862bb 4162 if ((bfd_link_pic (info) || indx != 0)
9b52905e
NC
4163 && (hh == NULL
4164 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4165 || hh->eh.root.type != bfd_link_hash_undefweak))
4166 {
4167 need_relocs = TRUE;
68ffbac6 4168 loc = htab->srelgot->contents;
9b52905e
NC
4169 /* FIXME (CAO): Should this be reloc_count++ ? */
4170 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4171 }
4172
4173 if (tls_type & GOT_TLS_GD)
4174 {
4175 if (need_relocs)
4176 {
4177 outrel.r_offset = (cur_off
4178 + htab->sgot->output_section->vma
4179 + htab->sgot->output_offset);
4180 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4181 outrel.r_addend = 0;
4182 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4183 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4184 htab->srelgot->reloc_count++;
4185 loc += sizeof (Elf32_External_Rela);
4186
4187 if (indx == 0)
4188 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4189 htab->sgot->contents + cur_off + 4);
4190 else
4191 {
4192 bfd_put_32 (output_bfd, 0,
4193 htab->sgot->contents + cur_off + 4);
4194 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4195 outrel.r_offset += 4;
4196 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4197 htab->srelgot->reloc_count++;
4198 loc += sizeof (Elf32_External_Rela);
4199 }
4200 }
4201 else
4202 {
4203 /* If we are not emitting relocations for a
4204 general dynamic reference, then we must be in a
4205 static link or an executable link with the
4206 symbol binding locally. Mark it as belonging
4207 to module 1, the executable. */
4208 bfd_put_32 (output_bfd, 1,
4209 htab->sgot->contents + cur_off);
4210 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4211 htab->sgot->contents + cur_off + 4);
4212 }
4213
4214
4215 cur_off += 8;
4216 }
4217
4218 if (tls_type & GOT_TLS_IE)
4219 {
4220 if (need_relocs)
4221 {
4222 outrel.r_offset = (cur_off
4223 + htab->sgot->output_section->vma
4224 + htab->sgot->output_offset);
4225 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4226
4227 if (indx == 0)
4228 outrel.r_addend = relocation - dtpoff_base (info);
4229 else
4230 outrel.r_addend = 0;
4231
4232 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4233 htab->srelgot->reloc_count++;
4234 loc += sizeof (Elf32_External_Rela);
4235 }
4236 else
4237 bfd_put_32 (output_bfd, tpoff (info, relocation),
4238 htab->sgot->contents + cur_off);
4239
4240 cur_off += 4;
4241 }
4242
4243 if (hh != NULL)
4244 hh->eh.got.offset |= 1;
4245 else
4246 local_got_offsets[r_symndx] |= 1;
4247 }
4248
4249 if ((tls_type & GOT_TLS_GD)
4250 && r_type != R_PARISC_TLS_GD21L
4251 && r_type != R_PARISC_TLS_GD14R)
4252 off += 2 * GOT_ENTRY_SIZE;
4253
4254 /* Add the base of the GOT to the relocation value. */
4255 relocation = (off
4256 + htab->sgot->output_offset
4257 + htab->sgot->output_section->vma);
4258
4259 break;
4260 }
4261
4262 case R_PARISC_TLS_LE21L:
4263 case R_PARISC_TLS_LE14R:
4264 {
4265 relocation = tpoff (info, relocation);
4266 break;
4267 }
4268 break;
edd21aca 4269
30667bf3
AM
4270 default:
4271 break;
4272 }
252b5132 4273
875c0872
DA
4274 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4275 htab, sym_sec, hh, info);
252b5132 4276
875c0872 4277 if (rstatus == bfd_reloc_ok)
30667bf3 4278 continue;
252b5132 4279
875c0872 4280 if (hh != NULL)
9b52905e 4281 sym_name = hh_name (hh);
30667bf3
AM
4282 else
4283 {
4284 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4285 symtab_hdr->sh_link,
4286 sym->st_name);
4287 if (sym_name == NULL)
b34976b6 4288 return FALSE;
30667bf3
AM
4289 if (*sym_name == '\0')
4290 sym_name = bfd_section_name (input_bfd, sym_sec);
4291 }
edd21aca 4292
30667bf3 4293 howto = elf_hppa_howto_table + r_type;
252b5132 4294
875c0872 4295 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4296 {
875c0872 4297 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d 4298 {
4eca0228 4299 _bfd_error_handler
d003868e
AM
4300 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4301 input_bfd,
4302 input_section,
875c0872 4303 (long) rela->r_offset,
f09ebc7d
AM
4304 howto->name,
4305 sym_name);
4306 bfd_set_error (bfd_error_bad_value);
b34976b6 4307 return FALSE;
f09ebc7d 4308 }
30667bf3
AM
4309 }
4310 else
1a72702b
AM
4311 (*info->callbacks->reloc_overflow)
4312 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4313 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
30667bf3 4314 }
edd21aca 4315
b34976b6 4316 return TRUE;
30667bf3 4317}
252b5132 4318
30667bf3
AM
4319/* Finish up dynamic symbol handling. We set the contents of various
4320 dynamic sections here. */
252b5132 4321
b34976b6 4322static bfd_boolean
c39a58e6
AM
4323elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4324 struct bfd_link_info *info,
875c0872 4325 struct elf_link_hash_entry *eh,
c39a58e6 4326 Elf_Internal_Sym *sym)
30667bf3 4327{
83c81bfe 4328 struct elf32_hppa_link_hash_table *htab;
875c0872 4329 Elf_Internal_Rela rela;
a252afa4 4330 bfd_byte *loc;
edd21aca 4331
83c81bfe 4332 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4333 if (htab == NULL)
4334 return FALSE;
30667bf3 4335
875c0872 4336 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4337 {
4338 bfd_vma value;
30667bf3 4339
875c0872 4340 if (eh->plt.offset & 1)
8dea1268
AM
4341 abort ();
4342
30667bf3
AM
4343 /* This symbol has an entry in the procedure linkage table. Set
4344 it up.
4345
4346 The format of a plt entry is
74d1c347
AM
4347 <funcaddr>
4348 <__gp>
47d89dba 4349 */
30667bf3 4350 value = 0;
875c0872
DA
4351 if (eh->root.type == bfd_link_hash_defined
4352 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4353 {
875c0872
DA
4354 value = eh->root.u.def.value;
4355 if (eh->root.u.def.section->output_section != NULL)
4356 value += (eh->root.u.def.section->output_offset
4357 + eh->root.u.def.section->output_section->vma);
252b5132 4358 }
edd21aca 4359
a252afa4 4360 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4361 rela.r_offset = (eh->plt.offset
a252afa4
DA
4362 + htab->splt->output_offset
4363 + htab->splt->output_section->vma);
875c0872 4364 if (eh->dynindx != -1)
30667bf3 4365 {
875c0872
DA
4366 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4367 rela.r_addend = 0;
30667bf3 4368 }
ce757d15 4369 else
47d89dba 4370 {
a252afa4
DA
4371 /* This symbol has been marked to become local, and is
4372 used by a plabel so must be kept in the .plt. */
875c0872
DA
4373 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4374 rela.r_addend = value;
47d89dba
AM
4375 }
4376
a252afa4
DA
4377 loc = htab->srelplt->contents;
4378 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4379 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4380
875c0872 4381 if (!eh->def_regular)
30667bf3
AM
4382 {
4383 /* Mark the symbol as undefined, rather than as defined in
4384 the .plt section. Leave the value alone. */
4385 sym->st_shndx = SHN_UNDEF;
4386 }
4387 }
edd21aca 4388
9b52905e
NC
4389 if (eh->got.offset != (bfd_vma) -1
4390 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4391 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4392 {
30667bf3
AM
4393 /* This symbol has an entry in the global offset table. Set it
4394 up. */
4395
875c0872 4396 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4397 + htab->sgot->output_offset
4398 + htab->sgot->output_section->vma);
30667bf3 4399
4dc86686
AM
4400 /* If this is a -Bsymbolic link and the symbol is defined
4401 locally or was forced to be local because of a version file,
4402 we just want to emit a RELATIVE reloc. The entry in the
4403 global offset table will already have been initialized in the
4404 relocate_section function. */
0e1862bb 4405 if (bfd_link_pic (info)
a496fbc8 4406 && (SYMBOLIC_BIND (info, eh) || eh->dynindx == -1)
875c0872 4407 && eh->def_regular)
30667bf3 4408 {
875c0872
DA
4409 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4410 rela.r_addend = (eh->root.u.def.value
4411 + eh->root.u.def.section->output_offset
4412 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4413 }
4414 else
4415 {
875c0872 4416 if ((eh->got.offset & 1) != 0)
49e9d0d3 4417 abort ();
875c0872
DA
4418
4419 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4420 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4421 rela.r_addend = 0;
30667bf3 4422 }
edd21aca 4423
947216bf
AM
4424 loc = htab->srelgot->contents;
4425 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4426 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4427 }
edd21aca 4428
875c0872 4429 if (eh->needs_copy)
30667bf3 4430 {
875c0872 4431 asection *sec;
30667bf3
AM
4432
4433 /* This symbol needs a copy reloc. Set it up. */
4434
875c0872
DA
4435 if (! (eh->dynindx != -1
4436 && (eh->root.type == bfd_link_hash_defined
4437 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4438 abort ();
30667bf3 4439
875c0872 4440 sec = htab->srelbss;
30667bf3 4441
875c0872
DA
4442 rela.r_offset = (eh->root.u.def.value
4443 + eh->root.u.def.section->output_offset
4444 + eh->root.u.def.section->output_section->vma);
4445 rela.r_addend = 0;
4446 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4447 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4448 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4449 }
4450
4451 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 4452 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
30667bf3
AM
4453 {
4454 sym->st_shndx = SHN_ABS;
4455 }
4456
b34976b6 4457 return TRUE;
30667bf3
AM
4458}
4459
98ceb8ce
AM
4460/* Used to decide how to sort relocs in an optimal manner for the
4461 dynamic linker, before writing them out. */
4462
4463static enum elf_reloc_type_class
7e612e98
AM
4464elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4465 const asection *rel_sec ATTRIBUTE_UNUSED,
4466 const Elf_Internal_Rela *rela)
98ceb8ce 4467{
9b52905e 4468 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4469 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4470 check below. */
4471 switch ((int) ELF32_R_TYPE (rela->r_info))
4472 {
4473 case R_PARISC_TLS_DTPMOD32:
4474 case R_PARISC_TLS_DTPOFF32:
4475 case R_PARISC_TLS_TPREL32:
4476 return reloc_class_normal;
4477 }
4478
cf35638d 4479 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4480 return reloc_class_relative;
4481
4482 switch ((int) ELF32_R_TYPE (rela->r_info))
4483 {
4484 case R_PARISC_IPLT:
4485 return reloc_class_plt;
4486 case R_PARISC_COPY:
4487 return reloc_class_copy;
4488 default:
4489 return reloc_class_normal;
4490 }
4491}
4492
30667bf3
AM
4493/* Finish up the dynamic sections. */
4494
b34976b6 4495static bfd_boolean
c39a58e6
AM
4496elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4497 struct bfd_link_info *info)
30667bf3
AM
4498{
4499 bfd *dynobj;
83c81bfe 4500 struct elf32_hppa_link_hash_table *htab;
30667bf3 4501 asection *sdyn;
894891db 4502 asection * sgot;
30667bf3 4503
83c81bfe 4504 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4505 if (htab == NULL)
4506 return FALSE;
4507
a63e02c7 4508 dynobj = htab->etab.dynobj;
30667bf3 4509
894891db
NC
4510 sgot = htab->sgot;
4511 /* A broken linker script might have discarded the dynamic sections.
4512 Catch this here so that we do not seg-fault later on. */
4513 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4514 return FALSE;
4515
3d4d4302 4516 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
30667bf3 4517
a63e02c7 4518 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4519 {
4520 Elf32_External_Dyn *dyncon, *dynconend;
4521
49e9d0d3
AM
4522 if (sdyn == NULL)
4523 abort ();
30667bf3
AM
4524
4525 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4526 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4527 for (; dyncon < dynconend; dyncon++)
edd21aca 4528 {
30667bf3
AM
4529 Elf_Internal_Dyn dyn;
4530 asection *s;
4531
4532 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4533
4534 switch (dyn.d_tag)
4535 {
4536 default:
3ac8354b 4537 continue;
30667bf3
AM
4538
4539 case DT_PLTGOT:
4540 /* Use PLTGOT to set the GOT register. */
4541 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4542 break;
4543
4544 case DT_JMPREL:
83c81bfe 4545 s = htab->srelplt;
30667bf3 4546 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4547 break;
4548
4549 case DT_PLTRELSZ:
83c81bfe 4550 s = htab->srelplt;
eea6121a 4551 dyn.d_un.d_val = s->size;
30667bf3 4552 break;
4e12ff7f
AM
4553
4554 case DT_RELASZ:
4555 /* Don't count procedure linkage table relocs in the
4556 overall reloc count. */
6348e046
AM
4557 s = htab->srelplt;
4558 if (s == NULL)
4559 continue;
eea6121a 4560 dyn.d_un.d_val -= s->size;
6348e046
AM
4561 break;
4562
4563 case DT_RELA:
4564 /* We may not be using the standard ELF linker script.
4565 If .rela.plt is the first .rela section, we adjust
4566 DT_RELA to not include it. */
4567 s = htab->srelplt;
4568 if (s == NULL)
4569 continue;
4570 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4571 continue;
eea6121a 4572 dyn.d_un.d_ptr += s->size;
4e12ff7f 4573 break;
30667bf3 4574 }
3ac8354b
AM
4575
4576 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4577 }
252b5132 4578 }
edd21aca 4579
894891db 4580 if (sgot != NULL && sgot->size != 0)
30667bf3 4581 {
74d1c347
AM
4582 /* Fill in the first entry in the global offset table.
4583 We use it to point to our dynamic section, if we have one. */
30667bf3 4584 bfd_put_32 (output_bfd,
c39a58e6 4585 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4586 sgot->contents);
30667bf3 4587
74d1c347 4588 /* The second entry is reserved for use by the dynamic linker. */
894891db 4589 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4590
30667bf3 4591 /* Set .got entry size. */
894891db 4592 elf_section_data (sgot->output_section)
74d1c347 4593 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4594 }
4595
eea6121a 4596 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba 4597 {
f3c3938c
JDA
4598 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4599 plt stubs and as such the section does not hold a table of fixed-size
4600 entries. */
4601 elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize = 0;
47d89dba 4602
83c81bfe 4603 if (htab->need_plt_stub)
47d89dba
AM
4604 {
4605 /* Set up the .plt stub. */
83c81bfe 4606 memcpy (htab->splt->contents
eea6121a 4607 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4608 plt_stub, sizeof (plt_stub));
4609
83c81bfe
AM
4610 if ((htab->splt->output_offset
4611 + htab->splt->output_section->vma
eea6121a 4612 + htab->splt->size)
894891db
NC
4613 != (sgot->output_offset
4614 + sgot->output_section->vma))
47d89dba 4615 {
4eca0228 4616 _bfd_error_handler
47d89dba 4617 (_(".got section not immediately after .plt section"));
b34976b6 4618 return FALSE;
47d89dba
AM
4619 }
4620 }
4621 }
30667bf3 4622
b34976b6 4623 return TRUE;
30667bf3 4624}
252b5132 4625
30667bf3
AM
4626/* Called when writing out an object file to decide the type of a
4627 symbol. */
4628static int
c39a58e6 4629elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4630{
4631 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4632 return STT_PARISC_MILLI;
4633 else
4634 return type;
252b5132
RH
4635}
4636
4637/* Misc BFD support code. */
30667bf3
AM
4638#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4639#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4640#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4641#define elf_info_to_howto elf_hppa_info_to_howto
4642#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4643
252b5132 4644/* Stuff for the BFD linker. */
c46b7515 4645#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4646#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
30667bf3 4647#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4648#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4649#define elf_backend_check_relocs elf32_hppa_check_relocs
4650#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4651#define elf_backend_fake_sections elf_hppa_fake_sections
4652#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4653#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4654#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4655#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4656#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4657#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4658#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4659#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4660#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4661#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4662#define elf_backend_object_p elf32_hppa_object_p
4663#define elf_backend_final_write_processing elf_hppa_final_write_processing
4664#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4665#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4666#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4667
4668#define elf_backend_can_gc_sections 1
51b64d56 4669#define elf_backend_can_refcount 1
30667bf3
AM
4670#define elf_backend_plt_alignment 2
4671#define elf_backend_want_got_plt 0
4672#define elf_backend_plt_readonly 0
4673#define elf_backend_want_plt_sym 0
74d1c347 4674#define elf_backend_got_header_size 8
f0fe0e16 4675#define elf_backend_rela_normal 1
252b5132 4676
6d00b590 4677#define TARGET_BIG_SYM hppa_elf32_vec
252b5132
RH
4678#define TARGET_BIG_NAME "elf32-hppa"
4679#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4680#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4681#define ELF_MACHINE_CODE EM_PARISC
4682#define ELF_MAXPAGESIZE 0x1000
d1036acb 4683#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4684#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4685
4686#include "elf32-target.h"
d952f17a
AM
4687
4688#undef TARGET_BIG_SYM
6d00b590 4689#define TARGET_BIG_SYM hppa_elf32_linux_vec
d952f17a 4690#undef TARGET_BIG_NAME
914dfb0f 4691#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4692#undef ELF_OSABI
9c55345c 4693#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4694#undef elf32_bed
4695#define elf32_bed elf32_hppa_linux_bed
d952f17a 4696
d952f17a 4697#include "elf32-target.h"
225247f0
JT
4698
4699#undef TARGET_BIG_SYM
6d00b590 4700#define TARGET_BIG_SYM hppa_elf32_nbsd_vec
225247f0 4701#undef TARGET_BIG_NAME
914dfb0f 4702#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4703#undef ELF_OSABI
4704#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4705#undef elf32_bed
4706#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4707
4708#include "elf32-target.h"
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