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[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
e5094212 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
22d606e9 3 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
252b5132 4
30667bf3 5 Original code by
252b5132
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6 Center for Software Science
7 Department of Computer Science
8 University of Utah
30667bf3 9 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
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10 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
11 TLS support written by Randolph Chung <tausq@debian.org>
12
ae9a127f 13 This file is part of BFD, the Binary File Descriptor library.
252b5132 14
ae9a127f
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15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 2 of the License, or
18 (at your option) any later version.
252b5132 19
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20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
252b5132 24
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25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
3e110533 27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132
RH
28
29#include "bfd.h"
30#include "sysdep.h"
252b5132
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31#include "libbfd.h"
32#include "elf-bfd.h"
9e103c9c
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33#include "elf/hppa.h"
34#include "libhppa.h"
35#include "elf32-hppa.h"
36#define ARCH_SIZE 32
edd21aca 37#include "elf32-hppa.h"
189c6563 38#include "elf-hppa.h"
9e103c9c 39
74d1c347
AM
40/* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
42 following:
43
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
50
edd21aca 51/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
RH
52
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
56
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
30667bf3
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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)
30667bf3
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71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
3ee1d854
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74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 76 : bv %r0(%r21)
3ee1d854 77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
3ee1d854
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81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
46fe4e66 83 : bv %r0(%r21)
3ee1d854 84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
3ee1d854
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88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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91 : ldsid (%r21),%r1
92 : mtsp %r1,%sr0
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
95
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
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98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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101 : ldsid (%r21),%r1
102 : mtsp %r1,%sr0
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
105
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
112 : nop
113 : ldw -24(%sp),%rp ; restore the original rp
114 : ldsid (%rp),%r1
115 : mtsp %r1,%sr0
ae9a127f 116 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 117
875c0872
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118
119/* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
121
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
125
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"
131
132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
134
135 elf32_hppa_dyn_reloc_entry "hdh"
136
137 Always remember to use GNU Coding Style. */
138
30667bf3
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139#define PLT_ENTRY_SIZE 8
140#define GOT_ENTRY_SIZE 4
141#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
142
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143static const bfd_byte plt_stub[] =
144{
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148#define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153};
154
30667bf3
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155/* Section name for stubs is the associated section name plus this
156 string. */
157#define STUB_SUFFIX ".stub"
158
98ceb8ce
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159/* We don't need to copy certain PC- or GP-relative dynamic relocs
160 into a shared object's dynamic section. All the relocs of the
161 limited class we are interested in, are absolute. */
162#ifndef RELATIVE_DYNRELOCS
163#define RELATIVE_DYNRELOCS 0
446f2863 164#define IS_ABSOLUTE_RELOC(r_type) 1
30667bf3
AM
165#endif
166
4fc8051d
AM
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
edd21aca
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188 /* The stub section. */
189 asection *stub_sec;
190
191 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 192 bfd_vma stub_offset;
252b5132
RH
193
194 /* Given the symbol's value and its section we can determine its final
195 value when building the stubs (so the stub knows where to jump. */
30667bf3 196 bfd_vma target_value;
252b5132 197 asection *target_section;
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AM
198
199 enum elf32_hppa_stub_type stub_type;
200
201 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 202 struct elf32_hppa_link_hash_entry *hh;
30667bf3 203
25f72752
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204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
206 asection *id_sec;
252b5132
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207};
208
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209struct elf32_hppa_link_hash_entry
210{
a63e02c7 211 struct elf_link_hash_entry eh;
30667bf3
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212
213 /* A pointer to the most recently used stub hash entry against this
214 symbol. */
a63e02c7 215 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 216
30667bf3
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217 /* Used to count relocations for delayed sizing of relocation
218 sections. */
9b52905e
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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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NC
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;
30667bf3
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243};
244
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245struct elf32_hppa_link_hash_table
246{
252b5132 247 /* The main hash table. */
a63e02c7 248 struct elf_link_hash_table etab;
252b5132
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249
250 /* The stub hash table. */
a63e02c7 251 struct bfd_hash_table bstab;
252b5132 252
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253 /* Linker stub bfd. */
254 bfd *stub_bfd;
255
30667bf3 256 /* Linker call-backs. */
c39a58e6
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257 asection * (*add_stub_section) (const char *, asection *);
258 void (*layout_sections_again) (void);
30667bf3 259
25f72752
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260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
9b52905e
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262 struct map_stub
263 {
25f72752
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264 /* This is the section to which stubs in the group will be
265 attached. */
266 asection *link_sec;
267 /* The stub section. */
268 asection *stub_sec;
25f72752 269 } *stub_group;
30667bf3 270
b4655ea9
AM
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
273 int top_index;
274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
30667bf3
AM
277 /* Short-cuts to get to dynamic linker sections. */
278 asection *sgot;
279 asection *srelgot;
280 asection *splt;
281 asection *srelplt;
282 asection *sdynbss;
283 asection *srelbss;
47d89dba 284
c46b7515
AM
285 /* Used during a final link to store the base of the text and data
286 segments so that we can perform SEGREL relocations. */
287 bfd_vma text_segment_base;
288 bfd_vma data_segment_base;
289
47d89dba
AM
290 /* Whether we support multiple sub-spaces for shared libs. */
291 unsigned int multi_subspace:1;
292
067fa4a6 293 /* Flags set when various size branches are detected. Used to
47d89dba
AM
294 select suitable defaults for the stub group size. */
295 unsigned int has_12bit_branch:1;
296 unsigned int has_17bit_branch:1;
067fa4a6 297 unsigned int has_22bit_branch:1;
47d89dba
AM
298
299 /* Set if we need a .plt stub to support lazy dynamic linking. */
300 unsigned int need_plt_stub:1;
ec338859
AM
301
302 /* Small local sym to section mapping cache. */
303 struct sym_sec_cache sym_sec;
9b52905e
NC
304
305 /* Data for LDM relocations. */
306 union
307 {
308 bfd_signed_vma refcount;
309 bfd_vma offset;
310 } tls_ldm_got;
252b5132
RH
311};
312
30667bf3
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313/* Various hash macros and functions. */
314#define hppa_link_hash_table(p) \
edd21aca 315 ((struct elf32_hppa_link_hash_table *) ((p)->hash))
252b5132 316
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DA
317#define hppa_elf_hash_entry(ent) \
318 ((struct elf32_hppa_link_hash_entry *)(ent))
319
320#define hppa_stub_hash_entry(ent) \
321 ((struct elf32_hppa_stub_hash_entry *)(ent))
322
30667bf3
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323#define hppa_stub_hash_lookup(table, string, create, copy) \
324 ((struct elf32_hppa_stub_hash_entry *) \
325 bfd_hash_lookup ((table), (string), (create), (copy)))
326
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NC
327#define hppa_elf_local_got_tls_type(abfd) \
328 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
329
330#define hh_name(hh) \
331 (hh ? hh->eh.root.root.string : "<undef>")
332
333#define eh_name(eh) \
334 (eh ? eh->root.root.string : "<undef>")
335
252b5132
RH
336/* Assorted hash table functions. */
337
338/* Initialize an entry in the stub hash table. */
339
340static struct bfd_hash_entry *
c39a58e6
AM
341stub_hash_newfunc (struct bfd_hash_entry *entry,
342 struct bfd_hash_table *table,
343 const char *string)
252b5132 344{
252b5132
RH
345 /* Allocate the structure if it has not already been allocated by a
346 subclass. */
ebe50bae 347 if (entry == NULL)
30667bf3 348 {
ebe50bae
AM
349 entry = bfd_hash_allocate (table,
350 sizeof (struct elf32_hppa_stub_hash_entry));
351 if (entry == NULL)
352 return entry;
30667bf3 353 }
252b5132
RH
354
355 /* Call the allocation method of the superclass. */
ebe50bae
AM
356 entry = bfd_hash_newfunc (entry, table, string);
357 if (entry != NULL)
252b5132 358 {
875c0872 359 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 360
252b5132 361 /* Initialize the local fields. */
875c0872
DA
362 hsh = hppa_stub_hash_entry (entry);
363 hsh->stub_sec = NULL;
364 hsh->stub_offset = 0;
365 hsh->target_value = 0;
366 hsh->target_section = NULL;
367 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 368 hsh->hh = NULL;
875c0872 369 hsh->id_sec = NULL;
30667bf3
AM
370 }
371
ebe50bae 372 return entry;
30667bf3
AM
373}
374
30667bf3
AM
375/* Initialize an entry in the link hash table. */
376
377static struct bfd_hash_entry *
c39a58e6
AM
378hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
379 struct bfd_hash_table *table,
380 const char *string)
30667bf3 381{
30667bf3
AM
382 /* Allocate the structure if it has not already been allocated by a
383 subclass. */
ebe50bae 384 if (entry == NULL)
30667bf3 385 {
ebe50bae
AM
386 entry = bfd_hash_allocate (table,
387 sizeof (struct elf32_hppa_link_hash_entry));
388 if (entry == NULL)
389 return entry;
30667bf3
AM
390 }
391
392 /* Call the allocation method of the superclass. */
ebe50bae
AM
393 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
394 if (entry != NULL)
30667bf3 395 {
875c0872 396 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 397
30667bf3 398 /* Initialize the local fields. */
875c0872 399 hh = hppa_elf_hash_entry (entry);
a63e02c7 400 hh->hsh_cache = NULL;
875c0872
DA
401 hh->dyn_relocs = NULL;
402 hh->plabel = 0;
9b52905e 403 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
404 }
405
ebe50bae 406 return entry;
252b5132
RH
407}
408
252b5132
RH
409/* Create the derived linker hash table. The PA ELF port uses the derived
410 hash table to keep information specific to the PA ELF linker (without
411 using static variables). */
412
413static struct bfd_link_hash_table *
c39a58e6 414elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 415{
875c0872
DA
416 struct elf32_hppa_link_hash_table *htab;
417 bfd_size_type amt = sizeof (*htab);
252b5132 418
9b52905e 419 htab = bfd_malloc (amt);
875c0872 420 if (htab == NULL)
252b5132 421 return NULL;
edd21aca 422
66eb6687
AM
423 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
424 sizeof (struct elf32_hppa_link_hash_entry)))
252b5132 425 {
875c0872 426 free (htab);
252b5132
RH
427 return NULL;
428 }
edd21aca
AM
429
430 /* Init the stub hash table too. */
66eb6687
AM
431 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
432 sizeof (struct elf32_hppa_stub_hash_entry)))
edd21aca
AM
433 return NULL;
434
875c0872
DA
435 htab->stub_bfd = NULL;
436 htab->add_stub_section = NULL;
437 htab->layout_sections_again = NULL;
438 htab->stub_group = NULL;
439 htab->sgot = NULL;
440 htab->srelgot = NULL;
441 htab->splt = NULL;
442 htab->srelplt = NULL;
443 htab->sdynbss = NULL;
444 htab->srelbss = NULL;
445 htab->text_segment_base = (bfd_vma) -1;
446 htab->data_segment_base = (bfd_vma) -1;
447 htab->multi_subspace = 0;
448 htab->has_12bit_branch = 0;
449 htab->has_17bit_branch = 0;
450 htab->has_22bit_branch = 0;
451 htab->need_plt_stub = 0;
452 htab->sym_sec.abfd = NULL;
9b52905e 453 htab->tls_ldm_got.refcount = 0;
875c0872 454
a63e02c7 455 return &htab->etab.root;
252b5132
RH
456}
457
e2d34d7d
DJ
458/* Free the derived linker hash table. */
459
460static void
875c0872 461elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab)
e2d34d7d 462{
875c0872
DA
463 struct elf32_hppa_link_hash_table *htab
464 = (struct elf32_hppa_link_hash_table *) btab;
e2d34d7d 465
a63e02c7 466 bfd_hash_table_free (&htab->bstab);
875c0872 467 _bfd_generic_link_hash_table_free (btab);
e2d34d7d
DJ
468}
469
30667bf3
AM
470/* Build a name for an entry in the stub hash table. */
471
edd21aca 472static char *
c39a58e6
AM
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
AM
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
AM
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
AM
509hppa_get_stub_entry (const asection *input_section,
510 const asection *sym_sec,
875c0872
DA
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 {
d003868e
AM
594 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
595 section->owner,
30667bf3
AM
596 stub_name);
597 return NULL;
edd21aca
AM
598 }
599
875c0872
DA
600 hsh->stub_sec = stub_sec;
601 hsh->stub_offset = 0;
602 hsh->id_sec = link_sec;
603 return hsh;
edd21aca
AM
604}
605
30667bf3
AM
606/* Determine the type of stub needed, if any, for a call. */
607
608static enum elf32_hppa_stub_type
c39a58e6 609hppa_type_of_stub (asection *input_sec,
875c0872
DA
610 const Elf_Internal_Rela *rela,
611 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
612 bfd_vma destination,
613 struct bfd_link_info *info)
edd21aca 614{
edd21aca 615 bfd_vma location;
30667bf3
AM
616 bfd_vma branch_offset;
617 bfd_vma max_branch_offset;
618 unsigned int r_type;
619
875c0872 620 if (hh != NULL
a63e02c7
DA
621 && hh->eh.plt.offset != (bfd_vma) -1
622 && hh->eh.dynindx != -1
875c0872 623 && !hh->plabel
a252afa4 624 && (info->shared
a63e02c7
DA
625 || !hh->eh.def_regular
626 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 627 {
067fa4a6
AM
628 /* We need an import stub. Decide between hppa_stub_import
629 and hppa_stub_import_shared later. */
30667bf3
AM
630 return hppa_stub_import;
631 }
edd21aca 632
30667bf3
AM
633 /* Determine where the call point is. */
634 location = (input_sec->output_offset
635 + input_sec->output_section->vma
875c0872 636 + rela->r_offset);
edd21aca 637
30667bf3 638 branch_offset = destination - location - 8;
875c0872 639 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 640
30667bf3
AM
641 /* Determine if a long branch stub is needed. parisc branch offsets
642 are relative to the second instruction past the branch, ie. +8
643 bytes on from the branch instruction location. The offset is
644 signed and counts in units of 4 bytes. */
645 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
646 max_branch_offset = (1 << (17 - 1)) << 2;
647
30667bf3 648 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
649 max_branch_offset = (1 << (12 - 1)) << 2;
650
25f72752 651 else /* R_PARISC_PCREL22F. */
9b52905e 652 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 653
30667bf3 654 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
655 return hppa_stub_long_branch;
656
30667bf3
AM
657 return hppa_stub_none;
658}
edd21aca 659
30667bf3
AM
660/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
661 IN_ARG contains the link info pointer. */
edd21aca 662
30667bf3
AM
663#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
664#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 665
30667bf3 666#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 667#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 668#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 669
3ee1d854
AM
670#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
671#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 672#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 673#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 674
3ee1d854
AM
675#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
676#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 677
30667bf3
AM
678#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
679#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
680#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
681#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 682
067fa4a6 683#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
684#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
685#define NOP 0x08000240 /* nop */
686#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
687#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
688#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 689
30667bf3
AM
690#ifndef R19_STUBS
691#define R19_STUBS 1
692#endif
edd21aca 693
30667bf3
AM
694#if R19_STUBS
695#define LDW_R1_DLT LDW_R1_R19
696#else
697#define LDW_R1_DLT LDW_R1_DP
698#endif
edd21aca 699
b34976b6 700static bfd_boolean
875c0872 701hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 702{
875c0872 703 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 704 struct bfd_link_info *info;
83c81bfe 705 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
706 asection *stub_sec;
707 bfd *stub_bfd;
708 bfd_byte *loc;
709 bfd_vma sym_value;
74d1c347 710 bfd_vma insn;
8dea1268 711 bfd_vma off;
74d1c347 712 int val;
30667bf3 713 int size;
edd21aca 714
30667bf3 715 /* Massage our args to the form they really have. */
875c0872
DA
716 hsh = hppa_stub_hash_entry (bh);
717 info = (struct bfd_link_info *)in_arg;
30667bf3 718
83c81bfe 719 htab = hppa_link_hash_table (info);
875c0872 720 stub_sec = hsh->stub_sec;
edd21aca 721
30667bf3 722 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
723 hsh->stub_offset = stub_sec->size;
724 loc = stub_sec->contents + hsh->stub_offset;
252b5132 725
30667bf3
AM
726 stub_bfd = stub_sec->owner;
727
875c0872 728 switch (hsh->stub_type)
30667bf3
AM
729 {
730 case hppa_stub_long_branch:
731 /* Create the long branch. A long branch is formed with "ldil"
732 loading the upper bits of the target address into a register,
733 then branching with "be" which adds in the lower bits.
734 The "be" has its delay slot nullified. */
875c0872
DA
735 sym_value = (hsh->target_value
736 + hsh->target_section->output_offset
737 + hsh->target_section->output_section->vma);
30667bf3 738
c39a58e6 739 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 740 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
741 bfd_put_32 (stub_bfd, insn, loc);
742
c39a58e6 743 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 744 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
745 bfd_put_32 (stub_bfd, insn, loc + 4);
746
30667bf3 747 size = 8;
edd21aca
AM
748 break;
749
30667bf3
AM
750 case hppa_stub_long_branch_shared:
751 /* Branches are relative. This is where we are going to. */
875c0872
DA
752 sym_value = (hsh->target_value
753 + hsh->target_section->output_offset
754 + hsh->target_section->output_section->vma);
30667bf3
AM
755
756 /* And this is where we are coming from, more or less. */
875c0872 757 sym_value -= (hsh->stub_offset
30667bf3
AM
758 + stub_sec->output_offset
759 + stub_sec->output_section->vma);
760
74d1c347 761 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 762 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 763 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
764 bfd_put_32 (stub_bfd, insn, loc + 4);
765
47d89dba 766 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 767 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
768 bfd_put_32 (stub_bfd, insn, loc + 8);
769 size = 12;
770 break;
edd21aca 771
30667bf3
AM
772 case hppa_stub_import:
773 case hppa_stub_import_shared:
a63e02c7 774 off = hsh->hh->eh.plt.offset;
8dea1268 775 if (off >= (bfd_vma) -2)
49e9d0d3 776 abort ();
8dea1268
AM
777
778 off &= ~ (bfd_vma) 1;
779 sym_value = (off
83c81bfe
AM
780 + htab->splt->output_offset
781 + htab->splt->output_section->vma
782 - elf_gp (htab->splt->output_section->owner));
30667bf3
AM
783
784 insn = ADDIL_DP;
785#if R19_STUBS
875c0872 786 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
787 insn = ADDIL_R19;
788#endif
c39a58e6 789 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 790 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 791 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 792
47d89dba
AM
793 /* It is critical to use lrsel/rrsel here because we are using
794 two different offsets (+0 and +4) from sym_value. If we use
795 lsel/rsel then with unfortunate sym_values we will round
796 sym_value+4 up to the next 2k block leading to a mis-match
797 between the lsel and rsel value. */
c39a58e6 798 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 799 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 800 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 801
83c81bfe 802 if (htab->multi_subspace)
30667bf3 803 {
47d89dba 804 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 805 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 806 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 807
74d1c347
AM
808 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
809 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
810 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
811 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 812
30667bf3
AM
813 size = 28;
814 }
815 else
816 {
74d1c347 817 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 818 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 819 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 820 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 821
30667bf3
AM
822 size = 16;
823 }
252b5132 824
30667bf3 825 break;
252b5132 826
30667bf3
AM
827 case hppa_stub_export:
828 /* Branches are relative. This is where we are going to. */
875c0872
DA
829 sym_value = (hsh->target_value
830 + hsh->target_section->output_offset
831 + hsh->target_section->output_section->vma);
252b5132 832
30667bf3 833 /* And this is where we are coming from. */
875c0872 834 sym_value -= (hsh->stub_offset
30667bf3
AM
835 + stub_sec->output_offset
836 + stub_sec->output_section->vma);
edd21aca 837
067fa4a6
AM
838 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
839 && (!htab->has_22bit_branch
840 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 841 {
edd21aca 842 (*_bfd_error_handler)
d003868e 843 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 844 hsh->target_section->owner,
d003868e 845 stub_sec,
875c0872 846 (long) hsh->stub_offset,
a63e02c7 847 hsh->bh_root.string);
30667bf3 848 bfd_set_error (bfd_error_bad_value);
b34976b6 849 return FALSE;
252b5132 850 }
30667bf3 851
74d1c347 852 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
853 if (!htab->has_22bit_branch)
854 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
855 else
856 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
857 bfd_put_32 (stub_bfd, insn, loc);
858
74d1c347
AM
859 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
860 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
861 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
862 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
863 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
864
865 /* Point the function symbol at the stub. */
a63e02c7
DA
866 hsh->hh->eh.root.u.def.section = stub_sec;
867 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
868
869 size = 24;
870 break;
871
872 default:
873 BFD_FAIL ();
b34976b6 874 return FALSE;
252b5132
RH
875 }
876
eea6121a 877 stub_sec->size += size;
b34976b6 878 return TRUE;
252b5132
RH
879}
880
30667bf3
AM
881#undef LDIL_R1
882#undef BE_SR4_R1
883#undef BL_R1
884#undef ADDIL_R1
885#undef DEPI_R1
30667bf3
AM
886#undef LDW_R1_R21
887#undef LDW_R1_DLT
888#undef LDW_R1_R19
889#undef ADDIL_R19
890#undef LDW_R1_DP
891#undef LDSID_R21_R1
892#undef MTSP_R1
893#undef BE_SR0_R21
894#undef STW_RP
895#undef BV_R0_R21
896#undef BL_RP
897#undef NOP
898#undef LDW_RP
899#undef LDSID_RP_R1
900#undef BE_SR0_RP
252b5132 901
30667bf3
AM
902/* As above, but don't actually build the stub. Just bump offset so
903 we know stub section sizes. */
904
b34976b6 905static bfd_boolean
875c0872 906hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 907{
875c0872 908 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 909 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
910 int size;
911
912 /* Massage our args to the form they really have. */
875c0872 913 hsh = hppa_stub_hash_entry (bh);
c39a58e6 914 htab = in_arg;
30667bf3 915
875c0872 916 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 917 size = 8;
875c0872 918 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 919 size = 12;
875c0872 920 else if (hsh->stub_type == hppa_stub_export)
30667bf3 921 size = 24;
74d1c347 922 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 923 {
83c81bfe 924 if (htab->multi_subspace)
30667bf3
AM
925 size = 28;
926 else
927 size = 16;
928 }
252b5132 929
875c0872 930 hsh->stub_sec->size += size;
b34976b6 931 return TRUE;
30667bf3 932}
252b5132 933
30667bf3
AM
934/* Return nonzero if ABFD represents an HPPA ELF32 file.
935 Additionally we set the default architecture and machine. */
936
b34976b6 937static bfd_boolean
c39a58e6 938elf32_hppa_object_p (bfd *abfd)
30667bf3 939{
24a5e751
L
940 Elf_Internal_Ehdr * i_ehdrp;
941 unsigned int flags;
252b5132 942
24a5e751
L
943 i_ehdrp = elf_elfheader (abfd);
944 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
945 {
6c21aa76
NC
946 /* GCC on hppa-linux produces binaries with OSABI=Linux,
947 but the kernel produces corefiles with OSABI=SysV. */
948 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
949 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 950 return FALSE;
24a5e751 951 }
225247f0
JT
952 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
953 {
954 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
955 but the kernel produces corefiles with OSABI=SysV. */
956 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
957 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
958 return FALSE;
959 }
24a5e751
L
960 else
961 {
962 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 963 return FALSE;
24a5e751
L
964 }
965
966 flags = i_ehdrp->e_flags;
30667bf3
AM
967 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
968 {
969 case EFA_PARISC_1_0:
970 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
971 case EFA_PARISC_1_1:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
973 case EFA_PARISC_2_0:
974 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
975 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
976 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
977 }
b34976b6 978 return TRUE;
252b5132
RH
979}
980
30667bf3
AM
981/* Create the .plt and .got sections, and set up our hash table
982 short-cuts to various dynamic sections. */
983
b34976b6 984static bfd_boolean
c39a58e6 985elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 986{
83c81bfe 987 struct elf32_hppa_link_hash_table *htab;
875c0872 988 struct elf_link_hash_entry *eh;
edd21aca 989
30667bf3 990 /* Don't try to create the .plt and .got twice. */
83c81bfe
AM
991 htab = hppa_link_hash_table (info);
992 if (htab->splt != NULL)
b34976b6 993 return TRUE;
edd21aca 994
30667bf3
AM
995 /* Call the generic code to do most of the work. */
996 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 997 return FALSE;
252b5132 998
83c81bfe
AM
999 htab->splt = bfd_get_section_by_name (abfd, ".plt");
1000 htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
30667bf3 1001
83c81bfe 1002 htab->sgot = bfd_get_section_by_name (abfd, ".got");
3496cb2a
L
1003 htab->srelgot = bfd_make_section_with_flags (abfd, ".rela.got",
1004 (SEC_ALLOC
1005 | SEC_LOAD
1006 | SEC_HAS_CONTENTS
1007 | SEC_IN_MEMORY
1008 | SEC_LINKER_CREATED
1009 | SEC_READONLY));
83c81bfe 1010 if (htab->srelgot == NULL
83c81bfe 1011 || ! bfd_set_section_alignment (abfd, htab->srelgot, 2))
b34976b6 1012 return FALSE;
edd21aca 1013
83c81bfe
AM
1014 htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
1015 htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
30667bf3 1016
b18e2ae5
AM
1017 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1018 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
1019 eh = elf_hash_table (info)->hgot;
1020 eh->forced_local = 0;
1021 eh->other = STV_DEFAULT;
1022 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1023}
1024
ebe50bae
AM
1025/* Copy the extra info we tack onto an elf_link_hash_entry. */
1026
51b64d56 1027static void
fcfa13d2 1028elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1029 struct elf_link_hash_entry *eh_dir,
1030 struct elf_link_hash_entry *eh_ind)
ebe50bae 1031{
875c0872 1032 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1033
875c0872
DA
1034 hh_dir = hppa_elf_hash_entry (eh_dir);
1035 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1036
875c0872 1037 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1038 {
875c0872 1039 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1040 {
875c0872
DA
1041 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1042 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1043
fcfa13d2 1044 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1045 list. Merge any entries against the same section. */
875c0872 1046 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1047 {
875c0872 1048 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1049
fcfa13d2
AM
1050 for (hdh_q = hh_dir->dyn_relocs;
1051 hdh_q != NULL;
1052 hdh_q = hdh_q->hdh_next)
875c0872 1053 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1054 {
1055#if RELATIVE_DYNRELOCS
875c0872 1056 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1057#endif
875c0872 1058 hdh_q->count += hdh_p->count;
a63e02c7 1059 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1060 break;
1061 }
875c0872 1062 if (hdh_q == NULL)
a63e02c7 1063 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1064 }
875c0872 1065 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1066 }
1067
875c0872
DA
1068 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1069 hh_ind->dyn_relocs = NULL;
ebe50bae 1070 }
ebe50bae 1071
4fc8051d 1072 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1073 && eh_ind->root.type != bfd_link_hash_indirect
1074 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1075 {
1076 /* If called to transfer flags for a weakdef during processing
1077 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1078 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
875c0872
DA
1079 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1080 eh_dir->ref_regular |= eh_ind->ref_regular;
1081 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1082 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1083 }
4fc8051d 1084 else
9b52905e
NC
1085 {
1086 if (eh_ind->root.type == bfd_link_hash_indirect
1087 && eh_dir->got.refcount <= 0)
1088 {
1089 hh_dir->tls_type = hh_ind->tls_type;
1090 hh_ind->tls_type = GOT_UNKNOWN;
1091 }
1092
1093 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1094 }
1095}
1096
1097static int
1098elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1099 int r_type, int is_local ATTRIBUTE_UNUSED)
1100{
1101 /* For now we don't support linker optimizations. */
1102 return r_type;
ebe50bae
AM
1103}
1104
30667bf3 1105/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1106 calculate needed space in the global offset table, procedure linkage
1107 table, and dynamic reloc sections. At this point we haven't
1108 necessarily read all the input files. */
252b5132 1109
b34976b6 1110static bfd_boolean
c39a58e6
AM
1111elf32_hppa_check_relocs (bfd *abfd,
1112 struct bfd_link_info *info,
1113 asection *sec,
1114 const Elf_Internal_Rela *relocs)
252b5132 1115{
30667bf3 1116 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1117 struct elf_link_hash_entry **eh_syms;
1118 const Elf_Internal_Rela *rela;
1119 const Elf_Internal_Rela *rela_end;
83c81bfe 1120 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
1121 asection *sreloc;
1122 asection *stubreloc;
9b52905e 1123 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1124
1049f94e 1125 if (info->relocatable)
b34976b6 1126 return TRUE;
30667bf3 1127
83c81bfe 1128 htab = hppa_link_hash_table (info);
30667bf3 1129 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1130 eh_syms = elf_sym_hashes (abfd);
30667bf3
AM
1131 sreloc = NULL;
1132 stubreloc = NULL;
1133
875c0872
DA
1134 rela_end = relocs + sec->reloc_count;
1135 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1136 {
1137 enum {
1138 NEED_GOT = 1,
1139 NEED_PLT = 2,
1140 NEED_DYNREL = 4,
98ceb8ce 1141 PLT_PLABEL = 8
30667bf3 1142 };
edd21aca 1143
30667bf3 1144 unsigned int r_symndx, r_type;
875c0872
DA
1145 struct elf32_hppa_link_hash_entry *hh;
1146 int need_entry = 0;
252b5132 1147
875c0872 1148 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1149
30667bf3 1150 if (r_symndx < symtab_hdr->sh_info)
875c0872 1151 hh = NULL;
30667bf3 1152 else
f7c5057a 1153 {
875c0872 1154 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1155 while (hh->eh.root.type == bfd_link_hash_indirect
1156 || hh->eh.root.type == bfd_link_hash_warning)
1157 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
f7c5057a 1158 }
252b5132 1159
875c0872 1160 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1161 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1162
30667bf3
AM
1163 switch (r_type)
1164 {
1165 case R_PARISC_DLTIND14F:
1166 case R_PARISC_DLTIND14R:
1167 case R_PARISC_DLTIND21L:
1168 /* This symbol requires a global offset table entry. */
1169 need_entry = NEED_GOT;
30667bf3
AM
1170 break;
1171
1172 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1173 case R_PARISC_PLABEL21L:
1174 case R_PARISC_PLABEL32:
74d1c347 1175 /* If the addend is non-zero, we break badly. */
875c0872 1176 if (rela->r_addend != 0)
49e9d0d3 1177 abort ();
74d1c347
AM
1178
1179 /* If we are creating a shared library, then we need to
1180 create a PLT entry for all PLABELs, because PLABELs with
1181 local symbols may be passed via a pointer to another
1182 object. Additionally, output a dynamic relocation
4dc86686 1183 pointing to the PLT entry.
875c0872 1184
4dc86686
AM
1185 For executables, the original 32-bit ABI allowed two
1186 different styles of PLABELs (function pointers): For
1187 global functions, the PLABEL word points into the .plt
1188 two bytes past a (function address, gp) pair, and for
1189 local functions the PLABEL points directly at the
1190 function. The magic +2 for the first type allows us to
1191 differentiate between the two. As you can imagine, this
1192 is a real pain when it comes to generating code to call
1193 functions indirectly or to compare function pointers.
1194 We avoid the mess by always pointing a PLABEL into the
1195 .plt, even for local functions. */
74d1c347 1196 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1197 break;
1198
1199 case R_PARISC_PCREL12F:
83c81bfe 1200 htab->has_12bit_branch = 1;
067fa4a6
AM
1201 goto branch_common;
1202
30667bf3
AM
1203 case R_PARISC_PCREL17C:
1204 case R_PARISC_PCREL17F:
83c81bfe 1205 htab->has_17bit_branch = 1;
067fa4a6
AM
1206 goto branch_common;
1207
30667bf3 1208 case R_PARISC_PCREL22F:
067fa4a6
AM
1209 htab->has_22bit_branch = 1;
1210 branch_common:
47d89dba
AM
1211 /* Function calls might need to go through the .plt, and
1212 might require long branch stubs. */
875c0872 1213 if (hh == NULL)
30667bf3
AM
1214 {
1215 /* We know local syms won't need a .plt entry, and if
1216 they need a long branch stub we can't guarantee that
1217 we can reach the stub. So just flag an error later
1218 if we're doing a shared link and find we need a long
1219 branch stub. */
1220 continue;
1221 }
1222 else
1223 {
1224 /* Global symbols will need a .plt entry if they remain
1225 global, and in most cases won't need a long branch
1226 stub. Unfortunately, we have to cater for the case
1227 where a symbol is forced local by versioning, or due
1228 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1229 need_entry = NEED_PLT;
a63e02c7 1230 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1231 need_entry = 0;
30667bf3
AM
1232 }
1233 break;
1234
36751eee 1235 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1236 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1237 case R_PARISC_PCREL14F: /* PC relative load/store. */
1238 case R_PARISC_PCREL14R:
1239 case R_PARISC_PCREL17R: /* External branches. */
1240 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1241 case R_PARISC_PCREL32:
30667bf3
AM
1242 /* We don't need to propagate the relocation if linking a
1243 shared object since these are section relative. */
1244 continue;
1245
1246 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1247 case R_PARISC_DPREL14R:
1248 case R_PARISC_DPREL21L:
1249 if (info->shared)
1250 {
1251 (*_bfd_error_handler)
d003868e
AM
1252 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1253 abfd,
30667bf3
AM
1254 elf_hppa_howto_table[r_type].name);
1255 bfd_set_error (bfd_error_bad_value);
b34976b6 1256 return FALSE;
30667bf3
AM
1257 }
1258 /* Fall through. */
1259
1260 case R_PARISC_DIR17F: /* Used for external branches. */
1261 case R_PARISC_DIR17R:
47d89dba
AM
1262 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1263 case R_PARISC_DIR14R:
30667bf3 1264 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1265 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1266 /* We may want to output a dynamic relocation later. */
1267 need_entry = NEED_DYNREL;
1268 break;
1269
1270 /* This relocation describes the C++ object vtable hierarchy.
1271 Reconstruct it for later use during GC. */
1272 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1273 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1274 return FALSE;
30667bf3
AM
1275 continue;
1276
1277 /* This relocation describes which C++ vtable entries are actually
1278 used. Record for later use during GC. */
1279 case R_PARISC_GNU_VTENTRY:
a63e02c7 1280 if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1281 return FALSE;
30667bf3
AM
1282 continue;
1283
9b52905e
NC
1284 case R_PARISC_TLS_GD21L:
1285 case R_PARISC_TLS_GD14R:
1286 case R_PARISC_TLS_LDM21L:
1287 case R_PARISC_TLS_LDM14R:
1288 need_entry = NEED_GOT;
1289 break;
1290
1291 case R_PARISC_TLS_IE21L:
1292 case R_PARISC_TLS_IE14R:
1293 if (info->shared)
1294 info->flags |= DF_STATIC_TLS;
1295 need_entry = NEED_GOT;
1296 break;
1297
30667bf3
AM
1298 default:
1299 continue;
1300 }
1301
1302 /* Now carry out our orders. */
1303 if (need_entry & NEED_GOT)
1304 {
9b52905e
NC
1305 switch (r_type)
1306 {
1307 default:
1308 tls_type = GOT_NORMAL;
1309 break;
1310 case R_PARISC_TLS_GD21L:
1311 case R_PARISC_TLS_GD14R:
1312 tls_type |= GOT_TLS_GD;
1313 break;
1314 case R_PARISC_TLS_LDM21L:
1315 case R_PARISC_TLS_LDM14R:
1316 tls_type |= GOT_TLS_LDM;
1317 break;
1318 case R_PARISC_TLS_IE21L:
1319 case R_PARISC_TLS_IE14R:
1320 tls_type |= GOT_TLS_IE;
1321 break;
1322 }
1323
30667bf3 1324 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1325 relocation for this entry. */
83c81bfe 1326 if (htab->sgot == NULL)
30667bf3 1327 {
a63e02c7
DA
1328 if (htab->etab.dynobj == NULL)
1329 htab->etab.dynobj = abfd;
1330 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1331 return FALSE;
30667bf3
AM
1332 }
1333
9b52905e
NC
1334 if (r_type == R_PARISC_TLS_LDM21L
1335 || r_type == R_PARISC_TLS_LDM14R)
1336 hppa_link_hash_table (info)->tls_ldm_got.refcount += 1;
30667bf3
AM
1337 else
1338 {
9b52905e
NC
1339 if (hh != NULL)
1340 {
1341 hh->eh.got.refcount += 1;
1342 old_tls_type = hh->tls_type;
1343 }
1344 else
1345 {
1346 bfd_signed_vma *local_got_refcounts;
1347
1348 /* This is a global offset table entry for a local symbol. */
1349 local_got_refcounts = elf_local_got_refcounts (abfd);
1350 if (local_got_refcounts == NULL)
1351 {
1352 bfd_size_type size;
1353
1354 /* Allocate space for local got offsets and local
1355 plt offsets. Done this way to save polluting
1356 elf_obj_tdata with another target specific
1357 pointer. */
1358 size = symtab_hdr->sh_info;
1359 size *= 2 * sizeof (bfd_signed_vma);
1360 /* Add in space to store the local GOT TLS types. */
1361 size += symtab_hdr->sh_info;
1362 local_got_refcounts = bfd_zalloc (abfd, size);
1363 if (local_got_refcounts == NULL)
1364 return FALSE;
1365 elf_local_got_refcounts (abfd) = local_got_refcounts;
1366 memset (hppa_elf_local_got_tls_type (abfd),
1367 GOT_UNKNOWN, symtab_hdr->sh_info);
1368 }
1369 local_got_refcounts[r_symndx] += 1;
1370
1371 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1372 }
1373
1374 tls_type |= old_tls_type;
1375
1376 if (old_tls_type != tls_type)
1377 {
1378 if (hh != NULL)
1379 hh->tls_type = tls_type;
1380 else
1381 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1382 }
1383
30667bf3
AM
1384 }
1385 }
1386
1387 if (need_entry & NEED_PLT)
1388 {
1389 /* If we are creating a shared library, and this is a reloc
1390 against a weak symbol or a global symbol in a dynamic
1391 object, then we will be creating an import stub and a
1392 .plt entry for the symbol. Similarly, on a normal link
1393 to symbols defined in a dynamic object we'll need the
1394 import stub and a .plt entry. We don't know yet whether
1395 the symbol is defined or not, so make an entry anyway and
1396 clean up later in adjust_dynamic_symbol. */
1397 if ((sec->flags & SEC_ALLOC) != 0)
1398 {
875c0872 1399 if (hh != NULL)
30667bf3 1400 {
a63e02c7
DA
1401 hh->eh.needs_plt = 1;
1402 hh->eh.plt.refcount += 1;
74d1c347 1403
36605136
AM
1404 /* If this .plt entry is for a plabel, mark it so
1405 that adjust_dynamic_symbol will keep the entry
1406 even if it appears to be local. */
74d1c347 1407 if (need_entry & PLT_PLABEL)
875c0872 1408 hh->plabel = 1;
74d1c347
AM
1409 }
1410 else if (need_entry & PLT_PLABEL)
1411 {
3ac8354b 1412 bfd_signed_vma *local_got_refcounts;
68fb2e56 1413 bfd_signed_vma *local_plt_refcounts;
74d1c347 1414
3ac8354b 1415 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1416 if (local_got_refcounts == NULL)
1417 {
dc810e39 1418 bfd_size_type size;
74d1c347
AM
1419
1420 /* Allocate space for local got offsets and local
1421 plt offsets. */
dc810e39
AM
1422 size = symtab_hdr->sh_info;
1423 size *= 2 * sizeof (bfd_signed_vma);
9b52905e
NC
1424 /* Add in space to store the local GOT TLS types. */
1425 size += symtab_hdr->sh_info;
c39a58e6 1426 local_got_refcounts = bfd_zalloc (abfd, size);
74d1c347 1427 if (local_got_refcounts == NULL)
b34976b6 1428 return FALSE;
74d1c347 1429 elf_local_got_refcounts (abfd) = local_got_refcounts;
74d1c347 1430 }
68fb2e56
AM
1431 local_plt_refcounts = (local_got_refcounts
1432 + symtab_hdr->sh_info);
ebe50bae 1433 local_plt_refcounts[r_symndx] += 1;
30667bf3 1434 }
30667bf3
AM
1435 }
1436 }
1437
98ceb8ce 1438 if (need_entry & NEED_DYNREL)
30667bf3
AM
1439 {
1440 /* Flag this symbol as having a non-got, non-plt reference
1441 so that we generate copy relocs if it turns out to be
1442 dynamic. */
875c0872 1443 if (hh != NULL && !info->shared)
a63e02c7 1444 hh->eh.non_got_ref = 1;
30667bf3
AM
1445
1446 /* If we are creating a shared library then we need to copy
1447 the reloc into the shared library. However, if we are
1448 linking with -Bsymbolic, we need only copy absolute
1449 relocs or relocs against symbols that are not defined in
1450 an object we are including in the link. PC- or DP- or
1451 DLT-relative relocs against any local sym or global sym
1452 with DEF_REGULAR set, can be discarded. At this point we
1453 have not seen all the input files, so it is possible that
1454 DEF_REGULAR is not set now but will be set later (it is
1455 never cleared). We account for that possibility below by
98ceb8ce 1456 storing information in the dyn_relocs field of the
30667bf3
AM
1457 hash table entry.
1458
1459 A similar situation to the -Bsymbolic case occurs when
1460 creating shared libraries and symbol visibility changes
1461 render the symbol local.
1462
1463 As it turns out, all the relocs we will be creating here
1464 are absolute, so we cannot remove them on -Bsymbolic
1465 links or visibility changes anyway. A STUB_REL reloc
1466 is absolute too, as in that case it is the reloc in the
1467 stub we will be creating, rather than copying the PCREL
56882138
AM
1468 reloc in the branch.
1469
1470 If on the other hand, we are creating an executable, we
1471 may need to keep relocations for symbols satisfied by a
1472 dynamic library if we manage to avoid copy relocs for the
1473 symbol. */
446f2863
AM
1474 if ((info->shared
1475 && (sec->flags & SEC_ALLOC) != 0
1476 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1477 || (hh != NULL
446f2863 1478 && (!info->symbolic
a63e02c7
DA
1479 || hh->eh.root.type == bfd_link_hash_defweak
1480 || !hh->eh.def_regular))))
4fc8051d
AM
1481 || (ELIMINATE_COPY_RELOCS
1482 && !info->shared
446f2863 1483 && (sec->flags & SEC_ALLOC) != 0
875c0872 1484 && hh != NULL
a63e02c7
DA
1485 && (hh->eh.root.type == bfd_link_hash_defweak
1486 || !hh->eh.def_regular)))
30667bf3 1487 {
875c0872
DA
1488 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1489 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1490
30667bf3
AM
1491 /* Create a reloc section in dynobj and make room for
1492 this reloc. */
98ceb8ce 1493 if (sreloc == NULL)
30667bf3
AM
1494 {
1495 char *name;
3ac8354b 1496 bfd *dynobj;
30667bf3 1497
98ceb8ce
AM
1498 name = (bfd_elf_string_from_elf_section
1499 (abfd,
1500 elf_elfheader (abfd)->e_shstrndx,
1501 elf_section_data (sec)->rel_hdr.sh_name));
30667bf3
AM
1502 if (name == NULL)
1503 {
1504 (*_bfd_error_handler)
1505 (_("Could not find relocation section for %s"),
1506 sec->name);
1507 bfd_set_error (bfd_error_bad_value);
b34976b6 1508 return FALSE;
30667bf3
AM
1509 }
1510
a63e02c7
DA
1511 if (htab->etab.dynobj == NULL)
1512 htab->etab.dynobj = abfd;
3ac8354b 1513
a63e02c7 1514 dynobj = htab->etab.dynobj;
98ceb8ce
AM
1515 sreloc = bfd_get_section_by_name (dynobj, name);
1516 if (sreloc == NULL)
30667bf3
AM
1517 {
1518 flagword flags;
1519
30667bf3
AM
1520 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1521 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1522 if ((sec->flags & SEC_ALLOC) != 0)
1523 flags |= SEC_ALLOC | SEC_LOAD;
3496cb2a
L
1524 sreloc = bfd_make_section_with_flags (dynobj,
1525 name,
1526 flags);
98ceb8ce 1527 if (sreloc == NULL
98ceb8ce 1528 || !bfd_set_section_alignment (dynobj, sreloc, 2))
b34976b6 1529 return FALSE;
30667bf3 1530 }
30667bf3 1531
98ceb8ce 1532 elf_section_data (sec)->sreloc = sreloc;
30667bf3
AM
1533 }
1534
98ceb8ce
AM
1535 /* If this is a global symbol, we count the number of
1536 relocations we need for this symbol. */
875c0872 1537 if (hh != NULL)
30667bf3 1538 {
875c0872 1539 hdh_head = &hh->dyn_relocs;
ec338859
AM
1540 }
1541 else
1542 {
1543 /* Track dynamic relocs needed for local syms too.
1544 We really need local syms available to do this
1545 easily. Oh well. */
1546
875c0872 1547 asection *sr;
6edfbbad
DJ
1548 void *vpp;
1549
875c0872
DA
1550 sr = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
1551 sec, r_symndx);
1552 if (sr == NULL)
b34976b6 1553 return FALSE;
30667bf3 1554
6edfbbad
DJ
1555 vpp = &elf_section_data (sr)->local_dynrel;
1556 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1557 }
1558
875c0872
DA
1559 hdh_p = *hdh_head;
1560 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1561 {
a63e02c7 1562 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1563 if (hdh_p == NULL)
b34976b6 1564 return FALSE;
a63e02c7 1565 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1566 *hdh_head = hdh_p;
1567 hdh_p->sec = sec;
1568 hdh_p->count = 0;
98ceb8ce 1569#if RELATIVE_DYNRELOCS
875c0872 1570 hdh_p->relative_count = 0;
98ceb8ce 1571#endif
ec338859 1572 }
98ceb8ce 1573
875c0872 1574 hdh_p->count += 1;
98ceb8ce 1575#if RELATIVE_DYNRELOCS
ec338859 1576 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1577 hdh_p->relative_count += 1;
98ceb8ce 1578#endif
30667bf3
AM
1579 }
1580 }
1581 }
edd21aca 1582
b34976b6 1583 return TRUE;
edd21aca
AM
1584}
1585
30667bf3
AM
1586/* Return the section that should be marked against garbage collection
1587 for a given relocation. */
1588
1589static asection *
c39a58e6 1590elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1591 struct bfd_link_info *info,
875c0872
DA
1592 Elf_Internal_Rela *rela,
1593 struct elf_link_hash_entry *hh,
c39a58e6 1594 Elf_Internal_Sym *sym)
30667bf3 1595{
875c0872 1596 if (hh != NULL)
07adf181
AM
1597 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1598 {
1599 case R_PARISC_GNU_VTINHERIT:
1600 case R_PARISC_GNU_VTENTRY:
1601 return NULL;
1602 }
30667bf3 1603
07adf181 1604 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1605}
1606
30667bf3
AM
1607/* Update the got and plt entry reference counts for the section being
1608 removed. */
edd21aca 1609
b34976b6 1610static bfd_boolean
c39a58e6
AM
1611elf32_hppa_gc_sweep_hook (bfd *abfd,
1612 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1613 asection *sec,
1614 const Elf_Internal_Rela *relocs)
edd21aca 1615{
30667bf3 1616 Elf_Internal_Shdr *symtab_hdr;
875c0872 1617 struct elf_link_hash_entry **eh_syms;
30667bf3 1618 bfd_signed_vma *local_got_refcounts;
74d1c347 1619 bfd_signed_vma *local_plt_refcounts;
875c0872 1620 const Elf_Internal_Rela *rela, *relend;
30667bf3 1621
ec338859 1622 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1623
30667bf3 1624 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1625 eh_syms = elf_sym_hashes (abfd);
30667bf3 1626 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1627 local_plt_refcounts = local_got_refcounts;
1628 if (local_plt_refcounts != NULL)
1629 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1630
30667bf3 1631 relend = relocs + sec->reloc_count;
875c0872 1632 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1633 {
1634 unsigned long r_symndx;
1635 unsigned int r_type;
875c0872 1636 struct elf_link_hash_entry *eh = NULL;
26e41594 1637
875c0872 1638 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1639 if (r_symndx >= symtab_hdr->sh_info)
1640 {
875c0872
DA
1641 struct elf32_hppa_link_hash_entry *hh;
1642 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1643 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1644
875c0872
DA
1645 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1646 while (eh->root.type == bfd_link_hash_indirect
1647 || eh->root.type == bfd_link_hash_warning)
1648 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1649 hh = hppa_elf_hash_entry (eh);
26e41594 1650
a63e02c7 1651 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1652 if (hdh_p->sec == sec)
26e41594
AM
1653 {
1654 /* Everything must go for SEC. */
a63e02c7 1655 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1656 break;
1657 }
1658 }
1659
875c0872 1660 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1661 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1662
26e41594
AM
1663 switch (r_type)
1664 {
1665 case R_PARISC_DLTIND14F:
1666 case R_PARISC_DLTIND14R:
1667 case R_PARISC_DLTIND21L:
9b52905e
NC
1668 case R_PARISC_TLS_GD21L:
1669 case R_PARISC_TLS_GD14R:
1670 case R_PARISC_TLS_IE21L:
1671 case R_PARISC_TLS_IE14R:
875c0872 1672 if (eh != NULL)
26e41594 1673 {
875c0872
DA
1674 if (eh->got.refcount > 0)
1675 eh->got.refcount -= 1;
26e41594
AM
1676 }
1677 else if (local_got_refcounts != NULL)
1678 {
1679 if (local_got_refcounts[r_symndx] > 0)
1680 local_got_refcounts[r_symndx] -= 1;
1681 }
1682 break;
98ceb8ce 1683
9b52905e
NC
1684 case R_PARISC_TLS_LDM21L:
1685 case R_PARISC_TLS_LDM14R:
1686 hppa_link_hash_table (info)->tls_ldm_got.refcount -= 1;
1687 break;
1688
26e41594
AM
1689 case R_PARISC_PCREL12F:
1690 case R_PARISC_PCREL17C:
1691 case R_PARISC_PCREL17F:
1692 case R_PARISC_PCREL22F:
875c0872 1693 if (eh != NULL)
26e41594 1694 {
875c0872
DA
1695 if (eh->plt.refcount > 0)
1696 eh->plt.refcount -= 1;
26e41594
AM
1697 }
1698 break;
1699
1700 case R_PARISC_PLABEL14R:
1701 case R_PARISC_PLABEL21L:
1702 case R_PARISC_PLABEL32:
875c0872 1703 if (eh != NULL)
26e41594 1704 {
875c0872
DA
1705 if (eh->plt.refcount > 0)
1706 eh->plt.refcount -= 1;
26e41594
AM
1707 }
1708 else if (local_plt_refcounts != NULL)
1709 {
1710 if (local_plt_refcounts[r_symndx] > 0)
1711 local_plt_refcounts[r_symndx] -= 1;
1712 }
1713 break;
1714
1715 default:
1716 break;
1717 }
1718 }
252b5132 1719
b34976b6 1720 return TRUE;
252b5132
RH
1721}
1722
edfc032f
AM
1723/* Support for core dump NOTE sections. */
1724
1725static bfd_boolean
1726elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1727{
1728 int offset;
1729 size_t size;
1730
1731 switch (note->descsz)
1732 {
1733 default:
1734 return FALSE;
1735
1736 case 396: /* Linux/hppa */
1737 /* pr_cursig */
1738 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1739
1740 /* pr_pid */
1741 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
1742
1743 /* pr_reg */
1744 offset = 72;
1745 size = 320;
1746
1747 break;
1748 }
1749
1750 /* Make a ".reg/999" section. */
1751 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1752 size, note->descpos + offset);
1753}
1754
1755static bfd_boolean
1756elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1757{
1758 switch (note->descsz)
1759 {
1760 default:
1761 return FALSE;
1762
1763 case 124: /* Linux/hppa elf_prpsinfo. */
1764 elf_tdata (abfd)->core_program
1765 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1766 elf_tdata (abfd)->core_command
1767 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1768 }
1769
1770 /* Note that for some reason, a spurious space is tacked
1771 onto the end of the args in some (at least one anyway)
1772 implementations, so strip it off if it exists. */
1773 {
1774 char *command = elf_tdata (abfd)->core_command;
1775 int n = strlen (command);
1776
1777 if (0 < n && command[n - 1] == ' ')
1778 command[n - 1] = '\0';
1779 }
1780
1781 return TRUE;
1782}
1783
74d1c347
AM
1784/* Our own version of hide_symbol, so that we can keep plt entries for
1785 plabels. */
1786
1787static void
c39a58e6 1788elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1789 struct elf_link_hash_entry *eh,
c39a58e6 1790 bfd_boolean force_local)
74d1c347 1791{
e5094212
AM
1792 if (force_local)
1793 {
875c0872
DA
1794 eh->forced_local = 1;
1795 if (eh->dynindx != -1)
e5094212 1796 {
875c0872 1797 eh->dynindx = -1;
e5094212 1798 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1799 eh->dynstr_index);
e5094212
AM
1800 }
1801 }
1802
9b52905e 1803 if (! hppa_elf_hash_entry (eh)->plabel)
74d1c347 1804 {
875c0872
DA
1805 eh->needs_plt = 0;
1806 eh->plt = elf_hash_table (info)->init_plt_refcount;
74d1c347
AM
1807 }
1808}
1809
30667bf3
AM
1810/* Adjust a symbol defined by a dynamic object and referenced by a
1811 regular object. The current definition is in some section of the
1812 dynamic object, but we're not including those sections. We have to
1813 change the definition to something the rest of the link can
1814 understand. */
252b5132 1815
b34976b6 1816static bfd_boolean
c39a58e6 1817elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1818 struct elf_link_hash_entry *eh)
252b5132 1819{
83c81bfe 1820 struct elf32_hppa_link_hash_table *htab;
875c0872 1821 asection *sec;
3ac8354b 1822 unsigned int power_of_two;
30667bf3
AM
1823
1824 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1825 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1826 if (eh->type == STT_FUNC
1827 || eh->needs_plt)
30667bf3 1828 {
875c0872
DA
1829 if (eh->plt.refcount <= 0
1830 || (eh->def_regular
1831 && eh->root.type != bfd_link_hash_defweak
1832 && ! hppa_elf_hash_entry (eh)->plabel
30667bf3
AM
1833 && (!info->shared || info->symbolic)))
1834 {
1835 /* The .plt entry is not needed when:
1836 a) Garbage collection has removed all references to the
1837 symbol, or
1838 b) We know for certain the symbol is defined in this
74d1c347
AM
1839 object, and it's not a weak definition, nor is the symbol
1840 used by a plabel relocation. Either this object is the
1841 application or we are doing a shared symbolic link. */
1842
875c0872
DA
1843 eh->plt.offset = (bfd_vma) -1;
1844 eh->needs_plt = 0;
30667bf3 1845 }
4dc86686 1846
b34976b6 1847 return TRUE;
30667bf3 1848 }
bbd7ec4a 1849 else
875c0872 1850 eh->plt.offset = (bfd_vma) -1;
edd21aca 1851
30667bf3
AM
1852 /* If this is a weak symbol, and there is a real definition, the
1853 processor independent code will have arranged for us to see the
1854 real definition first, and we can just use the same value. */
875c0872 1855 if (eh->u.weakdef != NULL)
edd21aca 1856 {
875c0872
DA
1857 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1858 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1859 abort ();
875c0872
DA
1860 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1861 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1862 if (ELIMINATE_COPY_RELOCS)
875c0872 1863 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1864 return TRUE;
30667bf3 1865 }
edd21aca 1866
30667bf3
AM
1867 /* This is a reference to a symbol defined by a dynamic object which
1868 is not a function. */
1869
1870 /* If we are creating a shared library, we must presume that the
1871 only references to the symbol are via the global offset table.
1872 For such cases we need not do anything here; the relocations will
1873 be handled correctly by relocate_section. */
1874 if (info->shared)
b34976b6 1875 return TRUE;
30667bf3
AM
1876
1877 /* If there are no references to this symbol that do not use the
1878 GOT, we don't need to generate a copy reloc. */
875c0872 1879 if (!eh->non_got_ref)
b34976b6 1880 return TRUE;
30667bf3 1881
4fc8051d 1882 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1883 {
875c0872
DA
1884 struct elf32_hppa_link_hash_entry *hh;
1885 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1886
875c0872 1887 hh = hppa_elf_hash_entry (eh);
a63e02c7 1888 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1889 {
875c0872
DA
1890 sec = hdh_p->sec->output_section;
1891 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1892 break;
1893 }
1894
1895 /* If we didn't find any dynamic relocs in read-only sections, then
1896 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1897 if (hdh_p == NULL)
4fc8051d 1898 {
875c0872 1899 eh->non_got_ref = 0;
4fc8051d
AM
1900 return TRUE;
1901 }
ebe50bae
AM
1902 }
1903
909272ee
AM
1904 if (eh->size == 0)
1905 {
1906 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1907 eh->root.root.string);
1908 return TRUE;
1909 }
1910
30667bf3
AM
1911 /* We must allocate the symbol in our .dynbss section, which will
1912 become part of the .bss section of the executable. There will be
1913 an entry for this symbol in the .dynsym section. The dynamic
1914 object will contain position independent code, so all references
1915 from the dynamic object to this symbol will go through the global
1916 offset table. The dynamic linker will use the .dynsym entry to
1917 determine the address it must put in the global offset table, so
1918 both the dynamic object and the regular object will refer to the
1919 same memory location for the variable. */
1920
3ac8354b 1921 htab = hppa_link_hash_table (info);
30667bf3
AM
1922
1923 /* We must generate a COPY reloc to tell the dynamic linker to
1924 copy the initial value out of the dynamic object and into the
3ac8354b 1925 runtime process image. */
875c0872 1926 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0)
30667bf3 1927 {
eea6121a 1928 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1929 eh->needs_copy = 1;
edd21aca 1930 }
252b5132 1931
3ac8354b
AM
1932 /* We need to figure out the alignment required for this symbol. I
1933 have no idea how other ELF linkers handle this. */
30667bf3 1934
875c0872 1935 power_of_two = bfd_log2 (eh->size);
3ac8354b
AM
1936 if (power_of_two > 3)
1937 power_of_two = 3;
1938
1939 /* Apply the required alignment. */
875c0872
DA
1940 sec = htab->sdynbss;
1941 sec->size = BFD_ALIGN (sec->size, (bfd_size_type) (1 << power_of_two));
a63e02c7 1942 if (power_of_two > bfd_get_section_alignment (htab->etab.dynobj, sec))
3ac8354b 1943 {
a63e02c7 1944 if (! bfd_set_section_alignment (htab->etab.dynobj, sec, power_of_two))
b34976b6 1945 return FALSE;
3ac8354b 1946 }
30667bf3 1947
30667bf3 1948 /* Define the symbol as being at this point in the section. */
875c0872
DA
1949 eh->root.u.def.section = sec;
1950 eh->root.u.def.value = sec->size;
edd21aca 1951
30667bf3 1952 /* Increment the section size to make room for the symbol. */
875c0872 1953 sec->size += eh->size;
252b5132 1954
b34976b6 1955 return TRUE;
252b5132
RH
1956}
1957
e5ee5df1 1958/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1959 ie. plabel entries. */
a8d02d66 1960
b34976b6 1961static bfd_boolean
875c0872 1962allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1963{
1964 struct bfd_link_info *info;
1965 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1966 struct elf32_hppa_link_hash_entry *hh;
1967 asection *sec;
a8d02d66 1968
875c0872 1969 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1970 return TRUE;
a8d02d66 1971
875c0872
DA
1972 if (eh->root.type == bfd_link_hash_warning)
1973 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 1974
875c0872 1975 info = (struct bfd_link_info *) inf;
9b52905e 1976 hh = hppa_elf_hash_entry (eh);
a8d02d66 1977 htab = hppa_link_hash_table (info);
a63e02c7 1978 if (htab->etab.dynamic_sections_created
875c0872 1979 && eh->plt.refcount > 0)
e5ee5df1
AM
1980 {
1981 /* Make sure this symbol is output as a dynamic symbol.
1982 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1983 if (eh->dynindx == -1
1984 && !eh->forced_local
1985 && eh->type != STT_PARISC_MILLI)
a8d02d66 1986 {
875c0872 1987 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1988 return FALSE;
e5ee5df1
AM
1989 }
1990
875c0872 1991 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1992 {
067fa4a6
AM
1993 /* Allocate these later. From this point on, h->plabel
1994 means that the plt entry is only used by a plabel.
1995 We'll be using a normal plt entry for this symbol, so
1996 clear the plabel indicator. */
875c0872
DA
1997
1998 hh->plabel = 0;
e5ee5df1 1999 }
875c0872 2000 else if (hh->plabel)
e5ee5df1
AM
2001 {
2002 /* Make an entry in the .plt section for plabel references
2003 that won't have a .plt entry for other reasons. */
875c0872
DA
2004 sec = htab->splt;
2005 eh->plt.offset = sec->size;
2006 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
2007 }
2008 else
e5ee5df1
AM
2009 {
2010 /* No .plt entry needed. */
875c0872
DA
2011 eh->plt.offset = (bfd_vma) -1;
2012 eh->needs_plt = 0;
e5ee5df1
AM
2013 }
2014 }
2015 else
2016 {
875c0872
DA
2017 eh->plt.offset = (bfd_vma) -1;
2018 eh->needs_plt = 0;
a8d02d66
AM
2019 }
2020
b34976b6 2021 return TRUE;
a8d02d66
AM
2022}
2023
4dc86686
AM
2024/* Allocate space in .plt, .got and associated reloc sections for
2025 global syms. */
2026
b34976b6 2027static bfd_boolean
875c0872 2028allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
2029{
2030 struct bfd_link_info *info;
83c81bfe 2031 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2032 asection *sec;
2033 struct elf32_hppa_link_hash_entry *hh;
2034 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2035
875c0872 2036 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2037 return TRUE;
73a74a62 2038
875c0872
DA
2039 if (eh->root.type == bfd_link_hash_warning)
2040 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2041
c39a58e6 2042 info = inf;
83c81bfe 2043 htab = hppa_link_hash_table (info);
875c0872
DA
2044 hh = hppa_elf_hash_entry (eh);
2045
a63e02c7 2046 if (htab->etab.dynamic_sections_created
875c0872
DA
2047 && eh->plt.offset != (bfd_vma) -1
2048 && !hh->plabel
2049 && eh->plt.refcount > 0)
4dc86686 2050 {
e5ee5df1 2051 /* Make an entry in the .plt section. */
875c0872
DA
2052 sec = htab->splt;
2053 eh->plt.offset = sec->size;
2054 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2055
e5ee5df1 2056 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2057 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2058 htab->need_plt_stub = 1;
4dc86686 2059 }
edd21aca 2060
875c0872 2061 if (eh->got.refcount > 0)
4dc86686 2062 {
446f2863
AM
2063 /* Make sure this symbol is output as a dynamic symbol.
2064 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2065 if (eh->dynindx == -1
2066 && !eh->forced_local
2067 && eh->type != STT_PARISC_MILLI)
446f2863 2068 {
875c0872 2069 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2070 return FALSE;
446f2863
AM
2071 }
2072
875c0872
DA
2073 sec = htab->sgot;
2074 eh->got.offset = sec->size;
2075 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2076 /* R_PARISC_TLS_GD* needs two GOT entries */
2077 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2078 sec->size += GOT_ENTRY_SIZE * 2;
2079 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2080 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2081 if (htab->etab.dynamic_sections_created
ce757d15 2082 && (info->shared
875c0872
DA
2083 || (eh->dynindx != -1
2084 && !eh->forced_local)))
ce757d15 2085 {
eea6121a 2086 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2087 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2088 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2089 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2090 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2091 }
4dc86686
AM
2092 }
2093 else
875c0872 2094 eh->got.offset = (bfd_vma) -1;
30667bf3 2095
875c0872 2096 if (hh->dyn_relocs == NULL)
b34976b6 2097 return TRUE;
30667bf3 2098
98ceb8ce
AM
2099 /* If this is a -Bsymbolic shared link, then we need to discard all
2100 space allocated for dynamic pc-relative relocs against symbols
2101 defined in a regular object. For the normal shared case, discard
2102 space for relocs that have become local due to symbol visibility
2103 changes. */
2104 if (info->shared)
446f2863 2105 {
98ceb8ce 2106#if RELATIVE_DYNRELOCS
875c0872 2107 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2108 {
875c0872 2109 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2110
875c0872 2111 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2112 {
875c0872
DA
2113 hdh_p->count -= hdh_p->relative_count;
2114 hdh_p->relative_count = 0;
2115 if (hdh_p->count == 0)
a63e02c7 2116 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2117 else
a63e02c7 2118 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2119 }
2120 }
2121#endif
4fc8051d
AM
2122
2123 /* Also discard relocs on undefined weak syms with non-default
2124 visibility. */
22d606e9 2125 if (hh->dyn_relocs != NULL
875c0872 2126 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2127 {
2128 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2129 hh->dyn_relocs = NULL;
2130
2131 /* Make sure undefined weak symbols are output as a dynamic
2132 symbol in PIEs. */
2133 else if (eh->dynindx == -1
2134 && !eh->forced_local)
2135 {
2136 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2137 return FALSE;
2138 }
2139 }
446f2863 2140 }
98ceb8ce 2141 else
30667bf3 2142 {
98ceb8ce
AM
2143 /* For the non-shared case, discard space for relocs against
2144 symbols which turn out to need copy relocs or are not
2145 dynamic. */
875c0872
DA
2146
2147 if (!eh->non_got_ref
4fc8051d 2148 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2149 && eh->def_dynamic
2150 && !eh->def_regular)
a63e02c7 2151 || (htab->etab.dynamic_sections_created
875c0872
DA
2152 && (eh->root.type == bfd_link_hash_undefweak
2153 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2154 {
2155 /* Make sure this symbol is output as a dynamic symbol.
2156 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2157 if (eh->dynindx == -1
2158 && !eh->forced_local
2159 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2160 {
875c0872 2161 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2162 return FALSE;
98ceb8ce
AM
2163 }
2164
2165 /* If that succeeded, we know we'll be keeping all the
2166 relocs. */
875c0872 2167 if (eh->dynindx != -1)
98ceb8ce
AM
2168 goto keep;
2169 }
446f2863 2170
875c0872 2171 hh->dyn_relocs = NULL;
b34976b6 2172 return TRUE;
98ceb8ce 2173
ec338859 2174 keep: ;
30667bf3 2175 }
30667bf3 2176
98ceb8ce 2177 /* Finally, allocate space. */
a63e02c7 2178 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2179 {
875c0872
DA
2180 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2181 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2182 }
30667bf3 2183
b34976b6 2184 return TRUE;
30667bf3 2185}
30667bf3 2186
d5c73c2f
AM
2187/* This function is called via elf_link_hash_traverse to force
2188 millicode symbols local so they do not end up as globals in the
2189 dynamic symbol table. We ought to be able to do this in
2190 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2191 for all dynamic symbols. Arguably, this is a bug in
2192 elf_adjust_dynamic_symbol. */
2193
b34976b6 2194static bfd_boolean
875c0872 2195clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2196 struct bfd_link_info *info)
d5c73c2f 2197{
875c0872
DA
2198 if (eh->root.type == bfd_link_hash_warning)
2199 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2200
875c0872
DA
2201 if (eh->type == STT_PARISC_MILLI
2202 && !eh->forced_local)
e0522e89 2203 {
875c0872 2204 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2205 }
b34976b6 2206 return TRUE;
d5c73c2f
AM
2207}
2208
98ceb8ce
AM
2209/* Find any dynamic relocs that apply to read-only sections. */
2210
b34976b6 2211static bfd_boolean
875c0872 2212readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2213{
875c0872
DA
2214 struct elf32_hppa_link_hash_entry *hh;
2215 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2216
875c0872
DA
2217 if (eh->root.type == bfd_link_hash_warning)
2218 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2219
875c0872 2220 hh = hppa_elf_hash_entry (eh);
a63e02c7 2221 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2222 {
875c0872 2223 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2224
875c0872 2225 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2226 {
c39a58e6 2227 struct bfd_link_info *info = inf;
98ceb8ce
AM
2228
2229 info->flags |= DF_TEXTREL;
2230
2231 /* Not an error, just cut short the traversal. */
b34976b6 2232 return FALSE;
98ceb8ce
AM
2233 }
2234 }
b34976b6 2235 return TRUE;
98ceb8ce
AM
2236}
2237
30667bf3
AM
2238/* Set the sizes of the dynamic sections. */
2239
b34976b6 2240static bfd_boolean
c39a58e6
AM
2241elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2242 struct bfd_link_info *info)
30667bf3 2243{
83c81bfe 2244 struct elf32_hppa_link_hash_table *htab;
30667bf3 2245 bfd *dynobj;
98ceb8ce 2246 bfd *ibfd;
875c0872 2247 asection *sec;
b34976b6 2248 bfd_boolean relocs;
30667bf3 2249
83c81bfe 2250 htab = hppa_link_hash_table (info);
a63e02c7 2251 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2252 if (dynobj == NULL)
2253 abort ();
30667bf3 2254
a63e02c7 2255 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2256 {
2257 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2258 if (info->executable)
30667bf3 2259 {
875c0872
DA
2260 sec = bfd_get_section_by_name (dynobj, ".interp");
2261 if (sec == NULL)
49e9d0d3 2262 abort ();
875c0872
DA
2263 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2264 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2265 }
74d1c347 2266
d5c73c2f 2267 /* Force millicode symbols local. */
a63e02c7 2268 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2269 clobber_millicode_symbols,
2270 info);
68fb2e56 2271 }
d5c73c2f 2272
98ceb8ce
AM
2273 /* Set up .got and .plt offsets for local syms, and space for local
2274 dynamic relocs. */
2275 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
68fb2e56
AM
2276 {
2277 bfd_signed_vma *local_got;
2278 bfd_signed_vma *end_local_got;
2279 bfd_signed_vma *local_plt;
2280 bfd_signed_vma *end_local_plt;
2281 bfd_size_type locsymcount;
2282 Elf_Internal_Shdr *symtab_hdr;
2283 asection *srel;
9b52905e 2284 char *local_tls_type;
74d1c347 2285
98ceb8ce 2286 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2287 continue;
4dc86686 2288
875c0872 2289 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2290 {
875c0872 2291 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2292
875c0872
DA
2293 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2294 elf_section_data (sec)->local_dynrel);
2295 hdh_p != NULL;
a63e02c7 2296 hdh_p = hdh_p->hdh_next)
98ceb8ce 2297 {
875c0872
DA
2298 if (!bfd_is_abs_section (hdh_p->sec)
2299 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2300 {
2301 /* Input section has been discarded, either because
2302 it is a copy of a linkonce section or due to
2303 linker script /DISCARD/, so we'll be discarding
2304 the relocs too. */
2305 }
875c0872 2306 else if (hdh_p->count != 0)
ec338859 2307 {
875c0872
DA
2308 srel = elf_section_data (hdh_p->sec)->sreloc;
2309 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2310 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2311 info->flags |= DF_TEXTREL;
ec338859 2312 }
98ceb8ce
AM
2313 }
2314 }
2315
2316 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2317 if (!local_got)
2318 continue;
74d1c347 2319
98ceb8ce 2320 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2321 locsymcount = symtab_hdr->sh_info;
2322 end_local_got = local_got + locsymcount;
9b52905e 2323 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2324 sec = htab->sgot;
83c81bfe 2325 srel = htab->srelgot;
68fb2e56
AM
2326 for (; local_got < end_local_got; ++local_got)
2327 {
2328 if (*local_got > 0)
4dc86686 2329 {
875c0872
DA
2330 *local_got = sec->size;
2331 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2332 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2333 sec->size += 2 * GOT_ENTRY_SIZE;
2334 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2335 sec->size += GOT_ENTRY_SIZE;
875c0872 2336 if (info->shared)
9b52905e
NC
2337 {
2338 srel->size += sizeof (Elf32_External_Rela);
2339 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2340 srel->size += 2 * sizeof (Elf32_External_Rela);
2341 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2342 srel->size += sizeof (Elf32_External_Rela);
2343 }
4dc86686 2344 }
68fb2e56
AM
2345 else
2346 *local_got = (bfd_vma) -1;
9b52905e
NC
2347
2348 ++local_tls_type;
68fb2e56 2349 }
74d1c347 2350
68fb2e56
AM
2351 local_plt = end_local_got;
2352 end_local_plt = local_plt + locsymcount;
a63e02c7 2353 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2354 {
2355 /* Won't be used, but be safe. */
2356 for (; local_plt < end_local_plt; ++local_plt)
2357 *local_plt = (bfd_vma) -1;
2358 }
2359 else
2360 {
875c0872 2361 sec = htab->splt;
83c81bfe 2362 srel = htab->srelplt;
74d1c347
AM
2363 for (; local_plt < end_local_plt; ++local_plt)
2364 {
2365 if (*local_plt > 0)
2366 {
875c0872
DA
2367 *local_plt = sec->size;
2368 sec->size += PLT_ENTRY_SIZE;
74d1c347 2369 if (info->shared)
eea6121a 2370 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2371 }
2372 else
2373 *local_plt = (bfd_vma) -1;
2374 }
2375 }
30667bf3 2376 }
9b52905e
NC
2377
2378 if (htab->tls_ldm_got.refcount > 0)
2379 {
2380 /* Allocate 2 got entries and 1 dynamic reloc for
2381 R_PARISC_TLS_DTPMOD32 relocs. */
2382 htab->tls_ldm_got.offset = htab->sgot->size;
2383 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2384 htab->srelgot->size += sizeof (Elf32_External_Rela);
2385 }
2386 else
2387 htab->tls_ldm_got.offset = -1;
30667bf3 2388
e5ee5df1
AM
2389 /* Do all the .plt entries without relocs first. The dynamic linker
2390 uses the last .plt reloc to find the end of the .plt (and hence
2391 the start of the .got) for lazy linking. */
a63e02c7 2392 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2393
98ceb8ce
AM
2394 /* Allocate global sym .plt and .got entries, and space for global
2395 sym dynamic relocs. */
a63e02c7 2396 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2397
2398 /* The check_relocs and adjust_dynamic_symbol entry points have
2399 determined the sizes of the various dynamic sections. Allocate
2400 memory for them. */
b34976b6 2401 relocs = FALSE;
875c0872 2402 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2403 {
875c0872 2404 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2405 continue;
2406
875c0872 2407 if (sec == htab->splt)
68fb2e56 2408 {
83c81bfe 2409 if (htab->need_plt_stub)
68fb2e56
AM
2410 {
2411 /* Make space for the plt stub at the end of the .plt
2412 section. We want this stub right at the end, up
2413 against the .got section. */
83c81bfe 2414 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2415 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2416 bfd_size_type mask;
30667bf3 2417
68fb2e56 2418 if (gotalign > pltalign)
875c0872 2419 bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2420 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2421 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2422 }
2423 }
c456f082
AM
2424 else if (sec == htab->sgot
2425 || sec == htab->sdynbss)
68fb2e56 2426 ;
0112cd26 2427 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2428 {
875c0872 2429 if (sec->size != 0)
30667bf3 2430 {
4e12ff7f
AM
2431 /* Remember whether there are any reloc sections other
2432 than .rela.plt. */
875c0872 2433 if (sec != htab->srelplt)
b34976b6 2434 relocs = TRUE;
47d89dba 2435
30667bf3
AM
2436 /* We use the reloc_count field as a counter if we need
2437 to copy relocs into the output file. */
875c0872 2438 sec->reloc_count = 0;
30667bf3
AM
2439 }
2440 }
30667bf3
AM
2441 else
2442 {
2443 /* It's not one of our sections, so don't allocate space. */
2444 continue;
2445 }
2446
875c0872 2447 if (sec->size == 0)
30667bf3
AM
2448 {
2449 /* If we don't need this section, strip it from the
2450 output file. This is mostly to handle .rela.bss and
2451 .rela.plt. We must create both sections in
2452 create_dynamic_sections, because they must be created
2453 before the linker maps input sections to output
2454 sections. The linker does that before
2455 adjust_dynamic_symbol is called, and it is that
2456 function which decides whether anything needs to go
2457 into these sections. */
875c0872 2458 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2459 continue;
2460 }
2461
c456f082
AM
2462 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2463 continue;
2464
30667bf3
AM
2465 /* Allocate memory for the section contents. Zero it, because
2466 we may not fill in all the reloc sections. */
875c0872 2467 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2468 if (sec->contents == NULL)
b34976b6 2469 return FALSE;
30667bf3
AM
2470 }
2471
a63e02c7 2472 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2473 {
2474 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2475 actually has nothing to do with the PLT, it is how we
2476 communicate the LTP value of a load module to the dynamic
2477 linker. */
dc810e39 2478#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2479 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2480
2481 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2482 return FALSE;
30667bf3
AM
2483
2484 /* Add some entries to the .dynamic section. We fill in the
2485 values later, in elf32_hppa_finish_dynamic_sections, but we
2486 must add the entries now so that we get the correct size for
2487 the .dynamic section. The DT_DEBUG entry is filled in by the
2488 dynamic linker and used by the debugger. */
3c27d551 2489 if (info->executable)
30667bf3 2490 {
dc810e39 2491 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2492 return FALSE;
30667bf3
AM
2493 }
2494
eea6121a 2495 if (htab->srelplt->size != 0)
30667bf3 2496 {
dc810e39
AM
2497 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2498 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2499 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2500 return FALSE;
30667bf3
AM
2501 }
2502
2503 if (relocs)
2504 {
dc810e39
AM
2505 if (!add_dynamic_entry (DT_RELA, 0)
2506 || !add_dynamic_entry (DT_RELASZ, 0)
2507 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2508 return FALSE;
30667bf3 2509
98ceb8ce
AM
2510 /* If any dynamic relocs apply to a read-only section,
2511 then we need a DT_TEXTREL entry. */
248866a8 2512 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2513 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2514
2515 if ((info->flags & DF_TEXTREL) != 0)
2516 {
2517 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2518 return FALSE;
98ceb8ce 2519 }
30667bf3
AM
2520 }
2521 }
dc810e39 2522#undef add_dynamic_entry
30667bf3 2523
b34976b6 2524 return TRUE;
30667bf3
AM
2525}
2526
30667bf3
AM
2527/* External entry points for sizing and building linker stubs. */
2528
b4655ea9
AM
2529/* Set up various things so that we can make a list of input sections
2530 for each output section included in the link. Returns -1 on error,
cedb70c5 2531 0 when no stubs will be needed, and 1 on success. */
30667bf3 2532
b4655ea9 2533int
c39a58e6 2534elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2535{
2536 bfd *input_bfd;
b4655ea9
AM
2537 unsigned int bfd_count;
2538 int top_id, top_index;
30667bf3 2539 asection *section;
25f72752 2540 asection **input_list, **list;
dc810e39 2541 bfd_size_type amt;
b4655ea9 2542 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2543
1badb539
AM
2544 /* Count the number of input BFDs and find the top input section id. */
2545 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2546 input_bfd != NULL;
2547 input_bfd = input_bfd->link_next)
2548 {
2549 bfd_count += 1;
25f72752
AM
2550 for (section = input_bfd->sections;
2551 section != NULL;
2552 section = section->next)
2553 {
2554 if (top_id < section->id)
2555 top_id = section->id;
2556 }
30667bf3 2557 }
b4655ea9 2558 htab->bfd_count = bfd_count;
30667bf3 2559
dc810e39 2560 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2561 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2562 if (htab->stub_group == NULL)
b4655ea9 2563 return -1;
1badb539 2564
b4655ea9 2565 /* We can't use output_bfd->section_count here to find the top output
1badb539 2566 section index as some sections may have been removed, and
8423293d 2567 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2568 for (section = output_bfd->sections, top_index = 0;
2569 section != NULL;
2570 section = section->next)
2571 {
2572 if (top_index < section->index)
2573 top_index = section->index;
2574 }
2575
b4655ea9 2576 htab->top_index = top_index;
dc810e39 2577 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2578 input_list = bfd_malloc (amt);
b4655ea9 2579 htab->input_list = input_list;
25f72752 2580 if (input_list == NULL)
b4655ea9 2581 return -1;
25f72752 2582
1badb539
AM
2583 /* For sections we aren't interested in, mark their entries with a
2584 value we can check later. */
2585 list = input_list + top_index;
2586 do
2587 *list = bfd_abs_section_ptr;
2588 while (list-- != input_list);
2589
2590 for (section = output_bfd->sections;
2591 section != NULL;
2592 section = section->next)
2593 {
47d89dba 2594 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2595 input_list[section->index] = NULL;
2596 }
2597
b4655ea9
AM
2598 return 1;
2599}
2600
2601/* The linker repeatedly calls this function for each input section,
2602 in the order that input sections are linked into output sections.
2603 Build lists of input sections to determine groupings between which
2604 we may insert linker stubs. */
2605
2606void
c39a58e6 2607elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2608{
2609 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2610
2611 if (isec->output_section->index <= htab->top_index)
25f72752 2612 {
b4655ea9
AM
2613 asection **list = htab->input_list + isec->output_section->index;
2614 if (*list != bfd_abs_section_ptr)
25f72752 2615 {
b4655ea9 2616 /* Steal the link_sec pointer for our list. */
83c81bfe 2617#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2618 /* This happens to make the list in reverse order,
2619 which is what we want. */
2620 PREV_SEC (isec) = *list;
2621 *list = isec;
25f72752
AM
2622 }
2623 }
b4655ea9 2624}
25f72752 2625
b4655ea9
AM
2626/* See whether we can group stub sections together. Grouping stub
2627 sections may result in fewer stubs. More importantly, we need to
2628 put all .init* and .fini* stubs at the beginning of the .init or
2629 .fini output sections respectively, because glibc splits the
2630 _init and _fini functions into multiple parts. Putting a stub in
2631 the middle of a function is not a good idea. */
2632
2633static void
c39a58e6
AM
2634group_sections (struct elf32_hppa_link_hash_table *htab,
2635 bfd_size_type stub_group_size,
2636 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2637{
2638 asection **list = htab->input_list + htab->top_index;
1badb539 2639 do
25f72752
AM
2640 {
2641 asection *tail = *list;
1badb539
AM
2642 if (tail == bfd_abs_section_ptr)
2643 continue;
25f72752
AM
2644 while (tail != NULL)
2645 {
2646 asection *curr;
2647 asection *prev;
2648 bfd_size_type total;
00b28bb0 2649 bfd_boolean big_sec;
25f72752
AM
2650
2651 curr = tail;
eea6121a 2652 total = tail->size;
00b28bb0
AM
2653 big_sec = total >= stub_group_size;
2654
25f72752
AM
2655 while ((prev = PREV_SEC (curr)) != NULL
2656 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2657 < stub_group_size))
25f72752
AM
2658 curr = prev;
2659
2660 /* OK, the size from the start of CURR to the end is less
a248e267 2661 than 240000 bytes and thus can be handled by one stub
25f72752 2662 section. (or the tail section is itself larger than
a248e267 2663 240000 bytes, in which case we may be toast.)
25f72752
AM
2664 We should really be keeping track of the total size of
2665 stubs added here, as stubs contribute to the final output
2666 section size. That's a little tricky, and this way will
a248e267
AM
2667 only break if stubs added total more than 22144 bytes, or
2668 2768 long branch stubs. It seems unlikely for more than
2669 2768 different functions to be called, especially from
2670 code only 240000 bytes long. This limit used to be
2671 250000, but c++ code tends to generate lots of little
2672 functions, and sometimes violated the assumption. */
25f72752
AM
2673 do
2674 {
2675 prev = PREV_SEC (tail);
2676 /* Set up this stub group. */
83c81bfe 2677 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2678 }
2679 while (tail != curr && (tail = prev) != NULL);
2680
a248e267 2681 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2682 bytes before the stub section can be handled by it too.
2683 Don't do this if we have a really large section after the
2684 stubs, as adding more stubs increases the chance that
2685 branches may not reach into the stub section. */
2686 if (!stubs_always_before_branch && !big_sec)
25f72752 2687 {
47d89dba
AM
2688 total = 0;
2689 while (prev != NULL
2690 && ((total += tail->output_offset - prev->output_offset)
2691 < stub_group_size))
2692 {
2693 tail = prev;
2694 prev = PREV_SEC (tail);
83c81bfe 2695 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2696 }
25f72752
AM
2697 }
2698 tail = prev;
2699 }
2700 }
b4655ea9
AM
2701 while (list-- != htab->input_list);
2702 free (htab->input_list);
1badb539 2703#undef PREV_SEC
b4655ea9
AM
2704}
2705
2706/* Read in all local syms for all input bfds, and create hash entries
2707 for export stubs if we are building a multi-subspace shared lib.
2708 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2709
2710static int
c39a58e6 2711get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2712{
2713 unsigned int bfd_indx;
2714 Elf_Internal_Sym *local_syms, **all_local_syms;
2715 int stub_changed = 0;
2716 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3
AM
2717
2718 /* We want to read in symbol extension records only once. To do this
2719 we need to read in the local symbols in parallel and save them for
2720 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2721 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2722 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2723 htab->all_local_syms = all_local_syms;
30667bf3 2724 if (all_local_syms == NULL)
b4655ea9 2725 return -1;
30667bf3
AM
2726
2727 /* Walk over all the input BFDs, swapping in local symbols.
2728 If we are creating a shared library, create hash entries for the
2729 export stubs. */
b4655ea9 2730 for (bfd_indx = 0;
30667bf3 2731 input_bfd != NULL;
25f72752 2732 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2733 {
2734 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2735
252b5132
RH
2736 /* We'll need the symbol table in a second. */
2737 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2738 if (symtab_hdr->sh_info == 0)
2739 continue;
2740
6cdc0ccc
AM
2741 /* We need an array of the local symbols attached to the input bfd. */
2742 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2743 if (local_syms == NULL)
edd21aca 2744 {
6cdc0ccc
AM
2745 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2746 symtab_hdr->sh_info, 0,
2747 NULL, NULL, NULL);
2748 /* Cache them for elf_link_input_bfd. */
2749 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2750 }
6cdc0ccc
AM
2751 if (local_syms == NULL)
2752 return -1;
edd21aca 2753
6cdc0ccc 2754 all_local_syms[bfd_indx] = local_syms;
edd21aca 2755
83c81bfe 2756 if (info->shared && htab->multi_subspace)
30667bf3 2757 {
875c0872
DA
2758 struct elf_link_hash_entry **eh_syms;
2759 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2760 unsigned int symcount;
2761
2762 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2763 - symtab_hdr->sh_info);
875c0872
DA
2764 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2765 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2766
2767 /* Look through the global syms for functions; We need to
2768 build export stubs for all globally visible functions. */
875c0872 2769 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2770 {
875c0872 2771 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2772
875c0872 2773 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2774
a63e02c7
DA
2775 while (hh->eh.root.type == bfd_link_hash_indirect
2776 || hh->eh.root.type == bfd_link_hash_warning)
2777 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2778
2779 /* At this point in the link, undefined syms have been
2780 resolved, so we need to check that the symbol was
2781 defined in this BFD. */
a63e02c7
DA
2782 if ((hh->eh.root.type == bfd_link_hash_defined
2783 || hh->eh.root.type == bfd_link_hash_defweak)
2784 && hh->eh.type == STT_FUNC
2785 && hh->eh.root.u.def.section->output_section != NULL
2786 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2787 == output_bfd)
a63e02c7
DA
2788 && hh->eh.root.u.def.section->owner == input_bfd
2789 && hh->eh.def_regular
2790 && !hh->eh.forced_local
2791 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2792 {
2793 asection *sec;
2794 const char *stub_name;
875c0872 2795 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2796
a63e02c7 2797 sec = hh->eh.root.u.def.section;
9b52905e 2798 stub_name = hh_name (hh);
a63e02c7 2799 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2800 stub_name,
b34976b6 2801 FALSE, FALSE);
875c0872 2802 if (hsh == NULL)
30667bf3 2803 {
875c0872
DA
2804 hsh = hppa_add_stub (stub_name, sec, htab);
2805 if (!hsh)
b4655ea9 2806 return -1;
30667bf3 2807
a63e02c7
DA
2808 hsh->target_value = hh->eh.root.u.def.value;
2809 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2810 hsh->stub_type = hppa_stub_export;
a63e02c7 2811 hsh->hh = hh;
30667bf3
AM
2812 stub_changed = 1;
2813 }
2814 else
2815 {
d003868e
AM
2816 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2817 input_bfd,
8f615d07 2818 stub_name);
30667bf3
AM
2819 }
2820 }
2821 }
30667bf3
AM
2822 }
2823 }
edd21aca 2824
b4655ea9
AM
2825 return stub_changed;
2826}
2827
2828/* Determine and set the size of the stub section for a final link.
2829
2830 The basic idea here is to examine all the relocations looking for
2831 PC-relative calls to a target that is unreachable with a "bl"
2832 instruction. */
2833
b34976b6 2834bfd_boolean
c39a58e6
AM
2835elf32_hppa_size_stubs
2836 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2837 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2838 asection * (*add_stub_section) (const char *, asection *),
2839 void (*layout_sections_again) (void))
b4655ea9
AM
2840{
2841 bfd_size_type stub_group_size;
b34976b6
AM
2842 bfd_boolean stubs_always_before_branch;
2843 bfd_boolean stub_changed;
b4655ea9
AM
2844 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2845
2846 /* Stash our params away. */
2847 htab->stub_bfd = stub_bfd;
2848 htab->multi_subspace = multi_subspace;
2849 htab->add_stub_section = add_stub_section;
2850 htab->layout_sections_again = layout_sections_again;
2851 stubs_always_before_branch = group_size < 0;
2852 if (group_size < 0)
2853 stub_group_size = -group_size;
2854 else
2855 stub_group_size = group_size;
2856 if (stub_group_size == 1)
2857 {
2858 /* Default values. */
acc990f2
AM
2859 if (stubs_always_before_branch)
2860 {
2861 stub_group_size = 7680000;
2862 if (htab->has_17bit_branch || htab->multi_subspace)
2863 stub_group_size = 240000;
2864 if (htab->has_12bit_branch)
2865 stub_group_size = 7500;
2866 }
2867 else
2868 {
2869 stub_group_size = 6971392;
2870 if (htab->has_17bit_branch || htab->multi_subspace)
2871 stub_group_size = 217856;
2872 if (htab->has_12bit_branch)
2873 stub_group_size = 6808;
2874 }
b4655ea9
AM
2875 }
2876
2877 group_sections (htab, stub_group_size, stubs_always_before_branch);
2878
2879 switch (get_local_syms (output_bfd, info->input_bfds, info))
2880 {
2881 default:
2882 if (htab->all_local_syms)
2883 goto error_ret_free_local;
b34976b6 2884 return FALSE;
b4655ea9
AM
2885
2886 case 0:
b34976b6 2887 stub_changed = FALSE;
b4655ea9
AM
2888 break;
2889
2890 case 1:
b34976b6 2891 stub_changed = TRUE;
b4655ea9
AM
2892 break;
2893 }
2894
edd21aca
AM
2895 while (1)
2896 {
b4655ea9
AM
2897 bfd *input_bfd;
2898 unsigned int bfd_indx;
30667bf3
AM
2899 asection *stub_sec;
2900
25f72752 2901 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2902 input_bfd != NULL;
25f72752 2903 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2904 {
2905 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2906 asection *section;
2907 Elf_Internal_Sym *local_syms;
30667bf3
AM
2908
2909 /* We'll need the symbol table in a second. */
2910 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2911 if (symtab_hdr->sh_info == 0)
2912 continue;
2913
b4655ea9 2914 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2915
2916 /* Walk over each section attached to the input bfd. */
2917 for (section = input_bfd->sections;
2918 section != NULL;
25f72752 2919 section = section->next)
30667bf3 2920 {
30667bf3
AM
2921 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2922
2923 /* If there aren't any relocs, then there's nothing more
2924 to do. */
2925 if ((section->flags & SEC_RELOC) == 0
2926 || section->reloc_count == 0)
2927 continue;
2928
25f72752
AM
2929 /* If this section is a link-once section that will be
2930 discarded, then don't create any stubs. */
2931 if (section->output_section == NULL
2932 || section->output_section->owner != output_bfd)
2933 continue;
2934
1e2f5b6e
AM
2935 /* Get the relocs. */
2936 internal_relocs
c39a58e6 2937 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2938 info->keep_memory);
30667bf3 2939 if (internal_relocs == NULL)
1e2f5b6e 2940 goto error_ret_free_local;
30667bf3
AM
2941
2942 /* Now examine each relocation. */
2943 irela = internal_relocs;
2944 irelaend = irela + section->reloc_count;
2945 for (; irela < irelaend; irela++)
2946 {
2947 unsigned int r_type, r_indx;
2948 enum elf32_hppa_stub_type stub_type;
875c0872 2949 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2950 asection *sym_sec;
2951 bfd_vma sym_value;
2952 bfd_vma destination;
875c0872 2953 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2954 char *stub_name;
25f72752 2955 const asection *id_sec;
30667bf3
AM
2956
2957 r_type = ELF32_R_TYPE (irela->r_info);
2958 r_indx = ELF32_R_SYM (irela->r_info);
2959
2960 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2961 {
2962 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2963 error_ret_free_internal:
2964 if (elf_section_data (section)->relocs == NULL)
2965 free (internal_relocs);
2966 goto error_ret_free_local;
30667bf3
AM
2967 }
2968
2969 /* Only look for stubs on call instructions. */
2970 if (r_type != (unsigned int) R_PARISC_PCREL12F
2971 && r_type != (unsigned int) R_PARISC_PCREL17F
2972 && r_type != (unsigned int) R_PARISC_PCREL22F)
2973 continue;
2974
2975 /* Now determine the call target, its name, value,
2976 section. */
2977 sym_sec = NULL;
2978 sym_value = 0;
2979 destination = 0;
875c0872 2980 hh = NULL;
30667bf3
AM
2981 if (r_indx < symtab_hdr->sh_info)
2982 {
2983 /* It's a local symbol. */
2984 Elf_Internal_Sym *sym;
2985 Elf_Internal_Shdr *hdr;
2986
2987 sym = local_syms + r_indx;
2988 hdr = elf_elfsections (input_bfd)[sym->st_shndx];
2989 sym_sec = hdr->bfd_section;
2990 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2991 sym_value = sym->st_value;
2992 destination = (sym_value + irela->r_addend
2993 + sym_sec->output_offset
2994 + sym_sec->output_section->vma);
2995 }
2996 else
2997 {
2998 /* It's an external symbol. */
2999 int e_indx;
3000
3001 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 3002 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 3003
a63e02c7
DA
3004 while (hh->eh.root.type == bfd_link_hash_indirect
3005 || hh->eh.root.type == bfd_link_hash_warning)
3006 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 3007
a63e02c7
DA
3008 if (hh->eh.root.type == bfd_link_hash_defined
3009 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 3010 {
a63e02c7
DA
3011 sym_sec = hh->eh.root.u.def.section;
3012 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
3013 if (sym_sec->output_section != NULL)
3014 destination = (sym_value + irela->r_addend
3015 + sym_sec->output_offset
3016 + sym_sec->output_section->vma);
3017 }
a63e02c7 3018 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
3019 {
3020 if (! info->shared)
3021 continue;
3022 }
a63e02c7 3023 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 3024 {
59c2e50f 3025 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 3026 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3027 == STV_DEFAULT)
a63e02c7 3028 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3029 continue;
3030 }
30667bf3
AM
3031 else
3032 {
3033 bfd_set_error (bfd_error_bad_value);
3034 goto error_ret_free_internal;
3035 }
3036 }
3037
3038 /* Determine what (if any) linker stub is needed. */
875c0872 3039 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3040 destination, info);
30667bf3
AM
3041 if (stub_type == hppa_stub_none)
3042 continue;
3043
25f72752 3044 /* Support for grouping stub sections. */
83c81bfe 3045 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3046
30667bf3 3047 /* Get the name of this stub. */
875c0872 3048 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3049 if (!stub_name)
3050 goto error_ret_free_internal;
3051
a63e02c7 3052 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3053 stub_name,
b34976b6 3054 FALSE, FALSE);
875c0872 3055 if (hsh != NULL)
30667bf3
AM
3056 {
3057 /* The proper stub has already been created. */
3058 free (stub_name);
3059 continue;
3060 }
3061
875c0872
DA
3062 hsh = hppa_add_stub (stub_name, section, htab);
3063 if (hsh == NULL)
30667bf3
AM
3064 {
3065 free (stub_name);
1e2f5b6e 3066 goto error_ret_free_internal;
30667bf3
AM
3067 }
3068
875c0872
DA
3069 hsh->target_value = sym_value;
3070 hsh->target_section = sym_sec;
3071 hsh->stub_type = stub_type;
30667bf3
AM
3072 if (info->shared)
3073 {
3074 if (stub_type == hppa_stub_import)
875c0872 3075 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3076 else if (stub_type == hppa_stub_long_branch)
875c0872 3077 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3078 }
a63e02c7 3079 hsh->hh = hh;
b34976b6 3080 stub_changed = TRUE;
30667bf3
AM
3081 }
3082
3083 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3084 if (elf_section_data (section)->relocs == NULL)
3085 free (internal_relocs);
30667bf3
AM
3086 }
3087 }
3088
3089 if (!stub_changed)
3090 break;
3091
3092 /* OK, we've added some stubs. Find out the new size of the
3093 stub sections. */
83c81bfe 3094 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3095 stub_sec != NULL;
3096 stub_sec = stub_sec->next)
eea6121a 3097 stub_sec->size = 0;
74d1c347 3098
a63e02c7 3099 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3100
30667bf3 3101 /* Ask the linker to do its stuff. */
83c81bfe 3102 (*htab->layout_sections_again) ();
b34976b6 3103 stub_changed = FALSE;
30667bf3
AM
3104 }
3105
6cdc0ccc 3106 free (htab->all_local_syms);
b34976b6 3107 return TRUE;
30667bf3
AM
3108
3109 error_ret_free_local:
b4655ea9 3110 free (htab->all_local_syms);
b34976b6 3111 return FALSE;
30667bf3
AM
3112}
3113
30667bf3
AM
3114/* For a final link, this function is called after we have sized the
3115 stubs to provide a value for __gp. */
3116
b34976b6 3117bfd_boolean
c39a58e6 3118elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3119{
b4655ea9
AM
3120 struct bfd_link_hash_entry *h;
3121 asection *sec = NULL;
3122 bfd_vma gp_val = 0;
83c81bfe 3123 struct elf32_hppa_link_hash_table *htab;
30667bf3 3124
83c81bfe 3125 htab = hppa_link_hash_table (info);
a63e02c7 3126 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3127
df8634e3 3128 if (h != NULL
b4655ea9
AM
3129 && (h->type == bfd_link_hash_defined
3130 || h->type == bfd_link_hash_defweak))
30667bf3 3131 {
b4655ea9
AM
3132 gp_val = h->u.def.value;
3133 sec = h->u.def.section;
30667bf3
AM
3134 }
3135 else
3136 {
0eddce27
AM
3137 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3138 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3139
74d1c347
AM
3140 /* Choose to point our LTP at, in this order, one of .plt, .got,
3141 or .data, if these sections exist. In the case of choosing
3142 .plt try to make the LTP ideal for addressing anywhere in the
3143 .plt or .got with a 14 bit signed offset. Typically, the end
3144 of the .plt is the start of the .got, so choose .plt + 0x2000
3145 if either the .plt or .got is larger than 0x2000. If both
3146 the .plt and .got are smaller than 0x2000, choose the end of
3147 the .plt section. */
225247f0
JT
3148 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3149 ? NULL : splt;
74d1c347 3150 if (sec != NULL)
30667bf3 3151 {
eea6121a
AM
3152 gp_val = sec->size;
3153 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3154 {
3155 gp_val = 0x2000;
3156 }
3157 }
3158 else
3159 {
b4655ea9 3160 sec = sgot;
74d1c347
AM
3161 if (sec != NULL)
3162 {
225247f0
JT
3163 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3164 {
3165 /* We know we don't have a .plt. If .got is large,
3166 offset our LTP. */
3167 if (sec->size > 0x2000)
3168 gp_val = 0x2000;
3169 }
74d1c347
AM
3170 }
3171 else
3172 {
3173 /* No .plt or .got. Who cares what the LTP is? */
3174 sec = bfd_get_section_by_name (abfd, ".data");
3175 }
30667bf3 3176 }
df8634e3
AM
3177
3178 if (h != NULL)
3179 {
b4655ea9
AM
3180 h->type = bfd_link_hash_defined;
3181 h->u.def.value = gp_val;
df8634e3 3182 if (sec != NULL)
b4655ea9 3183 h->u.def.section = sec;
df8634e3 3184 else
b4655ea9 3185 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3186 }
30667bf3
AM
3187 }
3188
b32b5d6e 3189 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3190 gp_val += sec->output_section->vma + sec->output_offset;
3191
3192 elf_gp (abfd) = gp_val;
b34976b6 3193 return TRUE;
30667bf3
AM
3194}
3195
30667bf3
AM
3196/* Build all the stubs associated with the current output file. The
3197 stubs are kept in a hash table attached to the main linker hash
3198 table. We also set up the .plt entries for statically linked PIC
3199 functions here. This function is called via hppaelf_finish in the
3200 linker. */
3201
b34976b6 3202bfd_boolean
c39a58e6 3203elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3204{
3205 asection *stub_sec;
3206 struct bfd_hash_table *table;
83c81bfe 3207 struct elf32_hppa_link_hash_table *htab;
30667bf3 3208
83c81bfe 3209 htab = hppa_link_hash_table (info);
30667bf3 3210
83c81bfe 3211 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3212 stub_sec != NULL;
3213 stub_sec = stub_sec->next)
3214 {
dc810e39 3215 bfd_size_type size;
30667bf3
AM
3216
3217 /* Allocate memory to hold the linker stubs. */
eea6121a 3218 size = stub_sec->size;
c39a58e6 3219 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3220 if (stub_sec->contents == NULL && size != 0)
b34976b6 3221 return FALSE;
eea6121a 3222 stub_sec->size = 0;
30667bf3
AM
3223 }
3224
3225 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3226 table = &htab->bstab;
30667bf3
AM
3227 bfd_hash_traverse (table, hppa_build_one_stub, info);
3228
b34976b6 3229 return TRUE;
30667bf3
AM
3230}
3231
9b52905e
NC
3232/* Return the base vma address which should be subtracted from the real
3233 address when resolving a dtpoff relocation.
3234 This is PT_TLS segment p_vaddr. */
3235
3236static bfd_vma
3237dtpoff_base (struct bfd_link_info *info)
3238{
3239 /* If tls_sec is NULL, we should have signalled an error already. */
3240 if (elf_hash_table (info)->tls_sec == NULL)
3241 return 0;
3242 return elf_hash_table (info)->tls_sec->vma;
3243}
3244
3245/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3246
3247static bfd_vma
3248tpoff (struct bfd_link_info *info, bfd_vma address)
3249{
3250 struct elf_link_hash_table *htab = elf_hash_table (info);
3251
3252 /* If tls_sec is NULL, we should have signalled an error already. */
3253 if (htab->tls_sec == NULL)
3254 return 0;
3255 /* hppa TLS ABI is variant I and static TLS block start just after
3256 tcbhead structure which has 2 pointer fields. */
3257 return (address - htab->tls_sec->vma
3258 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3259}
3260
c46b7515
AM
3261/* Perform a final link. */
3262
b34976b6 3263static bfd_boolean
c39a58e6 3264elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3265{
4dc86686 3266 /* Invoke the regular ELF linker to do all the work. */
c152c796 3267 if (!bfd_elf_final_link (abfd, info))
b34976b6 3268 return FALSE;
c46b7515
AM
3269
3270 /* If we're producing a final executable, sort the contents of the
985142a4 3271 unwind section. */
46fe4e66 3272 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3273}
3274
3275/* Record the lowest address for the data and text segments. */
3276
3277static void
c39a58e6
AM
3278hppa_record_segment_addr (bfd *abfd ATTRIBUTE_UNUSED,
3279 asection *section,
3280 void *data)
c46b7515 3281{
83c81bfe 3282 struct elf32_hppa_link_hash_table *htab;
c46b7515 3283
875c0872 3284 htab = (struct elf32_hppa_link_hash_table*) data;
c46b7515
AM
3285
3286 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3287 {
3288 bfd_vma value = section->vma - section->filepos;
3289
3290 if ((section->flags & SEC_READONLY) != 0)
3291 {
83c81bfe
AM
3292 if (value < htab->text_segment_base)
3293 htab->text_segment_base = value;
c46b7515
AM
3294 }
3295 else
3296 {
83c81bfe
AM
3297 if (value < htab->data_segment_base)
3298 htab->data_segment_base = value;
c46b7515
AM
3299 }
3300 }
3301}
3302
30667bf3
AM
3303/* Perform a relocation as part of a final link. */
3304
3305static bfd_reloc_status_type
c39a58e6
AM
3306final_link_relocate (asection *input_section,
3307 bfd_byte *contents,
875c0872 3308 const Elf_Internal_Rela *rela,
c39a58e6
AM
3309 bfd_vma value,
3310 struct elf32_hppa_link_hash_table *htab,
3311 asection *sym_sec,
875c0872 3312 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3313 struct bfd_link_info *info)
30667bf3
AM
3314{
3315 int insn;
875c0872 3316 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3317 unsigned int orig_r_type = r_type;
30667bf3
AM
3318 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3319 int r_format = howto->bitsize;
3320 enum hppa_reloc_field_selector_type_alt r_field;
3321 bfd *input_bfd = input_section->owner;
875c0872 3322 bfd_vma offset = rela->r_offset;
30667bf3
AM
3323 bfd_vma max_branch_offset = 0;
3324 bfd_byte *hit_data = contents + offset;
875c0872 3325 bfd_signed_vma addend = rela->r_addend;
30667bf3 3326 bfd_vma location;
875c0872
DA
3327 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3328 int val;
30667bf3
AM
3329
3330 if (r_type == R_PARISC_NONE)
3331 return bfd_reloc_ok;
3332
3333 insn = bfd_get_32 (input_bfd, hit_data);
3334
3335 /* Find out where we are and where we're going. */
3336 location = (offset +
3337 input_section->output_offset +
3338 input_section->output_section->vma);
3339
a252afa4
DA
3340 /* If we are not building a shared library, convert DLTIND relocs to
3341 DPREL relocs. */
3342 if (!info->shared)
3343 {
3344 switch (r_type)
4fc8051d
AM
3345 {
3346 case R_PARISC_DLTIND21L:
3347 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3348 break;
3349
4fc8051d
AM
3350 case R_PARISC_DLTIND14R:
3351 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3352 break;
3353
4fc8051d
AM
3354 case R_PARISC_DLTIND14F:
3355 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3356 break;
3357 }
3358 }
3359
30667bf3
AM
3360 switch (r_type)
3361 {
3362 case R_PARISC_PCREL12F:
3363 case R_PARISC_PCREL17F:
3364 case R_PARISC_PCREL22F:
067fa4a6
AM
3365 /* If this call should go via the plt, find the import stub in
3366 the stub hash. */
30667bf3
AM
3367 if (sym_sec == NULL
3368 || sym_sec->output_section == NULL
875c0872 3369 || (hh != NULL
a63e02c7
DA
3370 && hh->eh.plt.offset != (bfd_vma) -1
3371 && hh->eh.dynindx != -1
875c0872 3372 && !hh->plabel
a252afa4 3373 && (info->shared
a63e02c7
DA
3374 || !hh->eh.def_regular
3375 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3376 {
875c0872
DA
3377 hsh = hppa_get_stub_entry (input_section, sym_sec,
3378 hh, rela, htab);
3379 if (hsh != NULL)
30667bf3 3380 {
875c0872
DA
3381 value = (hsh->stub_offset
3382 + hsh->stub_sec->output_offset
3383 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3384 addend = 0;
3385 }
875c0872 3386 else if (sym_sec == NULL && hh != NULL
a63e02c7 3387 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3388 {
db20fd76
AM
3389 /* It's OK if undefined weak. Calls to undefined weak
3390 symbols behave as if the "called" function
3391 immediately returns. We can thus call to a weak
3392 function without first checking whether the function
3393 is defined. */
30667bf3 3394 value = location;
db20fd76 3395 addend = 8;
30667bf3
AM
3396 }
3397 else
f09ebc7d 3398 return bfd_reloc_undefined;
30667bf3
AM
3399 }
3400 /* Fall thru. */
3401
3402 case R_PARISC_PCREL21L:
3403 case R_PARISC_PCREL17C:
3404 case R_PARISC_PCREL17R:
3405 case R_PARISC_PCREL14R:
3406 case R_PARISC_PCREL14F:
36751eee 3407 case R_PARISC_PCREL32:
30667bf3
AM
3408 /* Make it a pc relative offset. */
3409 value -= location;
3410 addend -= 8;
3411 break;
3412
3413 case R_PARISC_DPREL21L:
3414 case R_PARISC_DPREL14R:
3415 case R_PARISC_DPREL14F:
a252afa4
DA
3416 /* Convert instructions that use the linkage table pointer (r19) to
3417 instructions that use the global data pointer (dp). This is the
3418 most efficient way of using PIC code in an incomplete executable,
3419 but the user must follow the standard runtime conventions for
3420 accessing data for this to work. */
3421 if (orig_r_type == R_PARISC_DLTIND21L)
3422 {
3423 /* Convert addil instructions if the original reloc was a
3424 DLTIND21L. GCC sometimes uses a register other than r19 for
3425 the operation, so we must convert any addil instruction
3426 that uses this relocation. */
3427 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3428 insn = ADDIL_DP;
3429 else
3430 /* We must have a ldil instruction. It's too hard to find
3431 and convert the associated add instruction, so issue an
3432 error. */
3433 (*_bfd_error_handler)
d003868e
AM
3434 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3435 input_bfd,
3436 input_section,
875c0872 3437 offset,
a252afa4
DA
3438 howto->name,
3439 insn);
3440 }
3441 else if (orig_r_type == R_PARISC_DLTIND14F)
3442 {
3443 /* This must be a format 1 load/store. Change the base
3444 register to dp. */
3445 insn = (insn & 0xfc1ffff) | (27 << 21);
3446 }
3447
30667bf3 3448 /* For all the DP relative relocations, we need to examine the symbol's
95d0f04a
DA
3449 section. If it has no section or if it's a code section, then
3450 "data pointer relative" makes no sense. In that case we don't
3451 adjust the "value", and for 21 bit addil instructions, we change the
3452 source addend register from %dp to %r0. This situation commonly
3453 arises for undefined weak symbols and when a variable's "constness"
30667bf3
AM
3454 is declared differently from the way the variable is defined. For
3455 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3456 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3457 {
3458 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3459 == (((int) OP_ADDIL << 26) | (27 << 21)))
3460 {
3461 insn &= ~ (0x1f << 21);
30667bf3
AM
3462 }
3463 /* Now try to make things easy for the dynamic linker. */
3464
3465 break;
3466 }
74d1c347 3467 /* Fall thru. */
30667bf3
AM
3468
3469 case R_PARISC_DLTIND21L:
3470 case R_PARISC_DLTIND14R:
3471 case R_PARISC_DLTIND14F:
9b52905e
NC
3472 case R_PARISC_TLS_GD21L:
3473 case R_PARISC_TLS_GD14R:
3474 case R_PARISC_TLS_LDM21L:
3475 case R_PARISC_TLS_LDM14R:
3476 case R_PARISC_TLS_IE21L:
3477 case R_PARISC_TLS_IE14R:
30667bf3
AM
3478 value -= elf_gp (input_section->output_section->owner);
3479 break;
3480
c46b7515
AM
3481 case R_PARISC_SEGREL32:
3482 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3483 value -= htab->text_segment_base;
c46b7515 3484 else
83c81bfe 3485 value -= htab->data_segment_base;
c46b7515
AM
3486 break;
3487
30667bf3
AM
3488 default:
3489 break;
3490 }
3491
3492 switch (r_type)
3493 {
3494 case R_PARISC_DIR32:
47d89dba 3495 case R_PARISC_DIR14F:
30667bf3
AM
3496 case R_PARISC_DIR17F:
3497 case R_PARISC_PCREL17C:
3498 case R_PARISC_PCREL14F:
36751eee 3499 case R_PARISC_PCREL32:
30667bf3
AM
3500 case R_PARISC_DPREL14F:
3501 case R_PARISC_PLABEL32:
3502 case R_PARISC_DLTIND14F:
3503 case R_PARISC_SEGBASE:
3504 case R_PARISC_SEGREL32:
9b52905e
NC
3505 case R_PARISC_TLS_DTPMOD32:
3506 case R_PARISC_TLS_DTPOFF32:
3507 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3508 r_field = e_fsel;
3509 break;
3510
1bf42538 3511 case R_PARISC_DLTIND21L:
30667bf3 3512 case R_PARISC_PCREL21L:
30667bf3 3513 case R_PARISC_PLABEL21L:
1bf42538
JL
3514 r_field = e_lsel;
3515 break;
3516
3517 case R_PARISC_DIR21L:
3518 case R_PARISC_DPREL21L:
9b52905e
NC
3519 case R_PARISC_TLS_GD21L:
3520 case R_PARISC_TLS_LDM21L:
3521 case R_PARISC_TLS_LDO21L:
3522 case R_PARISC_TLS_IE21L:
3523 case R_PARISC_TLS_LE21L:
30667bf3
AM
3524 r_field = e_lrsel;
3525 break;
3526
30667bf3 3527 case R_PARISC_PCREL17R:
30667bf3 3528 case R_PARISC_PCREL14R:
30667bf3
AM
3529 case R_PARISC_PLABEL14R:
3530 case R_PARISC_DLTIND14R:
1bf42538
JL
3531 r_field = e_rsel;
3532 break;
3533
3534 case R_PARISC_DIR17R:
3535 case R_PARISC_DIR14R:
3536 case R_PARISC_DPREL14R:
9b52905e
NC
3537 case R_PARISC_TLS_GD14R:
3538 case R_PARISC_TLS_LDM14R:
3539 case R_PARISC_TLS_LDO14R:
3540 case R_PARISC_TLS_IE14R:
3541 case R_PARISC_TLS_LE14R:
30667bf3
AM
3542 r_field = e_rrsel;
3543 break;
3544
3545 case R_PARISC_PCREL12F:
3546 case R_PARISC_PCREL17F:
3547 case R_PARISC_PCREL22F:
3548 r_field = e_fsel;
3549
3550 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3551 {
3552 max_branch_offset = (1 << (17-1)) << 2;
3553 }
3554 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3555 {
3556 max_branch_offset = (1 << (12-1)) << 2;
3557 }
3558 else
3559 {
3560 max_branch_offset = (1 << (22-1)) << 2;
3561 }
3562
3563 /* sym_sec is NULL on undefined weak syms or when shared on
3564 undefined syms. We've already checked for a stub for the
3565 shared undefined case. */
3566 if (sym_sec == NULL)
3567 break;
3568
3569 /* If the branch is out of reach, then redirect the
3570 call to the local stub for this function. */
3571 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3572 {
875c0872
DA
3573 hsh = hppa_get_stub_entry (input_section, sym_sec,
3574 hh, rela, htab);
3575 if (hsh == NULL)
f09ebc7d 3576 return bfd_reloc_undefined;
30667bf3
AM
3577
3578 /* Munge up the value and addend so that we call the stub
3579 rather than the procedure directly. */
875c0872
DA
3580 value = (hsh->stub_offset
3581 + hsh->stub_sec->output_offset
3582 + hsh->stub_sec->output_section->vma
30667bf3
AM
3583 - location);
3584 addend = -8;
3585 }
3586 break;
3587
3588 /* Something we don't know how to handle. */
3589 default:
3590 return bfd_reloc_notsupported;
3591 }
3592
3593 /* Make sure we can reach the stub. */
3594 if (max_branch_offset != 0
3595 && value + addend + max_branch_offset >= 2*max_branch_offset)
3596 {
3597 (*_bfd_error_handler)
d003868e
AM
3598 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3599 input_bfd,
3600 input_section,
875c0872 3601 offset,
a63e02c7 3602 hsh->bh_root.string);
ce757d15 3603 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3604 return bfd_reloc_notsupported;
3605 }
3606
3607 val = hppa_field_adjust (value, addend, r_field);
3608
3609 switch (r_type)
3610 {
3611 case R_PARISC_PCREL12F:
3612 case R_PARISC_PCREL17C:
3613 case R_PARISC_PCREL17F:
3614 case R_PARISC_PCREL17R:
3615 case R_PARISC_PCREL22F:
3616 case R_PARISC_DIR17F:
3617 case R_PARISC_DIR17R:
3618 /* This is a branch. Divide the offset by four.
3619 Note that we need to decide whether it's a branch or
3620 otherwise by inspecting the reloc. Inspecting insn won't
3621 work as insn might be from a .word directive. */
3622 val >>= 2;
3623 break;
3624
3625 default:
3626 break;
3627 }
3628
3629 insn = hppa_rebuild_insn (insn, val, r_format);
3630
3631 /* Update the instruction word. */
74d1c347 3632 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3633 return bfd_reloc_ok;
3634}
3635
30667bf3
AM
3636/* Relocate an HPPA ELF section. */
3637
b34976b6 3638static bfd_boolean
c39a58e6
AM
3639elf32_hppa_relocate_section (bfd *output_bfd,
3640 struct bfd_link_info *info,
3641 bfd *input_bfd,
3642 asection *input_section,
3643 bfd_byte *contents,
3644 Elf_Internal_Rela *relocs,
3645 Elf_Internal_Sym *local_syms,
3646 asection **local_sections)
30667bf3 3647{
30667bf3 3648 bfd_vma *local_got_offsets;
83c81bfe 3649 struct elf32_hppa_link_hash_table *htab;
30667bf3 3650 Elf_Internal_Shdr *symtab_hdr;
875c0872 3651 Elf_Internal_Rela *rela;
30667bf3 3652 Elf_Internal_Rela *relend;
30667bf3 3653
1049f94e 3654 if (info->relocatable)
b34976b6 3655 return TRUE;
f0fe0e16 3656
30667bf3
AM
3657 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3658
83c81bfe 3659 htab = hppa_link_hash_table (info);
74d1c347 3660 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3661
875c0872 3662 rela = relocs;
30667bf3 3663 relend = relocs + input_section->reloc_count;
875c0872 3664 for (; rela < relend; rela++)
30667bf3
AM
3665 {
3666 unsigned int r_type;
3667 reloc_howto_type *howto;
3668 unsigned int r_symndx;
875c0872 3669 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3670 Elf_Internal_Sym *sym;
3671 asection *sym_sec;
3672 bfd_vma relocation;
875c0872 3673 bfd_reloc_status_type rstatus;
30667bf3 3674 const char *sym_name;
b34976b6
AM
3675 bfd_boolean plabel;
3676 bfd_boolean warned_undef;
30667bf3 3677
875c0872 3678 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3679 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3680 {
3681 bfd_set_error (bfd_error_bad_value);
b34976b6 3682 return FALSE;
30667bf3
AM
3683 }
3684 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3685 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3686 continue;
3687
30667bf3 3688 /* This is a final link. */
875c0872
DA
3689 r_symndx = ELF32_R_SYM (rela->r_info);
3690 hh = NULL;
30667bf3
AM
3691 sym = NULL;
3692 sym_sec = NULL;
b34976b6 3693 warned_undef = FALSE;
30667bf3
AM
3694 if (r_symndx < symtab_hdr->sh_info)
3695 {
3696 /* This is a local symbol, h defaults to NULL. */
3697 sym = local_syms + r_symndx;
3698 sym_sec = local_sections[r_symndx];
875c0872 3699 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3700 }
3701 else
3702 {
875c0872 3703 struct elf_link_hash_entry *eh;
560e09e9 3704 bfd_boolean unresolved_reloc;
b2a8e766 3705 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3706
875c0872 3707 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3708 r_symndx, symtab_hdr, sym_hashes,
875c0872 3709 eh, sym_sec, relocation,
b2a8e766 3710 unresolved_reloc, warned_undef);
560e09e9
NC
3711
3712 if (relocation == 0
875c0872
DA
3713 && eh->root.type != bfd_link_hash_defined
3714 && eh->root.type != bfd_link_hash_defweak
3715 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3716 {
59c2e50f 3717 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3718 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3719 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3720 {
3721 if (! info->callbacks->undefined_symbol
9b52905e 3722 (info, eh_name (eh), input_bfd,
875c0872 3723 input_section, rela->r_offset, FALSE))
560e09e9
NC
3724 return FALSE;
3725 warned_undef = TRUE;
3726 }
30667bf3 3727 }
875c0872 3728 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3729 }
3730
3731 /* Do any required modifications to the relocation value, and
25f72752
AM
3732 determine what types of dynamic info we need to output, if
3733 any. */
74d1c347 3734 plabel = 0;
30667bf3
AM
3735 switch (r_type)
3736 {
3737 case R_PARISC_DLTIND14F:
3738 case R_PARISC_DLTIND14R:
3739 case R_PARISC_DLTIND21L:
ce757d15
AM
3740 {
3741 bfd_vma off;
b34976b6 3742 bfd_boolean do_got = 0;
ce757d15
AM
3743
3744 /* Relocation is to the entry for this symbol in the
3745 global offset table. */
875c0872 3746 if (hh != NULL)
ce757d15 3747 {
b34976b6 3748 bfd_boolean dyn;
ce757d15 3749
a63e02c7
DA
3750 off = hh->eh.got.offset;
3751 dyn = htab->etab.dynamic_sections_created;
c152c796 3752 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3753 &hh->eh))
ce757d15
AM
3754 {
3755 /* If we aren't going to call finish_dynamic_symbol,
3756 then we need to handle initialisation of the .got
3757 entry and create needed relocs here. Since the
3758 offset must always be a multiple of 4, we use the
3759 least significant bit to record whether we have
3760 initialised it already. */
3761 if ((off & 1) != 0)
3762 off &= ~1;
3763 else
3764 {
a63e02c7 3765 hh->eh.got.offset |= 1;
ce757d15
AM
3766 do_got = 1;
3767 }
3768 }
3769 }
3770 else
3771 {
3772 /* Local symbol case. */
3773 if (local_got_offsets == NULL)
3774 abort ();
3775
3776 off = local_got_offsets[r_symndx];
3777
3778 /* The offset must always be a multiple of 4. We use
3779 the least significant bit to record whether we have
3780 already generated the necessary reloc. */
3781 if ((off & 1) != 0)
3782 off &= ~1;
3783 else
3784 {
3785 local_got_offsets[r_symndx] |= 1;
3786 do_got = 1;
3787 }
3788 }
68fb2e56 3789
ce757d15
AM
3790 if (do_got)
3791 {
3792 if (info->shared)
3793 {
3794 /* Output a dynamic relocation for this GOT entry.
3795 In this case it is relative to the base of the
3796 object because the symbol index is zero. */
3797 Elf_Internal_Rela outrel;
947216bf 3798 bfd_byte *loc;
875c0872 3799 asection *sec = htab->srelgot;
ce757d15
AM
3800
3801 outrel.r_offset = (off
3802 + htab->sgot->output_offset
3803 + htab->sgot->output_section->vma);
3804 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3805 outrel.r_addend = relocation;
875c0872
DA
3806 loc = sec->contents;
3807 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3808 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3809 }
3810 else
30667bf3 3811 bfd_put_32 (output_bfd, relocation,
83c81bfe 3812 htab->sgot->contents + off);
ce757d15 3813 }
30667bf3 3814
ce757d15
AM
3815 if (off >= (bfd_vma) -2)
3816 abort ();
30667bf3 3817
ce757d15
AM
3818 /* Add the base of the GOT to the relocation value. */
3819 relocation = (off
3820 + htab->sgot->output_offset
3821 + htab->sgot->output_section->vma);
3822 }
30667bf3 3823 break;
252b5132 3824
c46b7515
AM
3825 case R_PARISC_SEGREL32:
3826 /* If this is the first SEGREL relocation, then initialize
3827 the segment base values. */
83c81bfe
AM
3828 if (htab->text_segment_base == (bfd_vma) -1)
3829 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3830 break;
3831
30667bf3
AM
3832 case R_PARISC_PLABEL14R:
3833 case R_PARISC_PLABEL21L:
3834 case R_PARISC_PLABEL32:
a63e02c7 3835 if (htab->etab.dynamic_sections_created)
252b5132 3836 {
ce757d15 3837 bfd_vma off;
b34976b6 3838 bfd_boolean do_plt = 0;
74d1c347
AM
3839 /* If we have a global symbol with a PLT slot, then
3840 redirect this relocation to it. */
875c0872 3841 if (hh != NULL)
74d1c347 3842 {
a63e02c7 3843 off = hh->eh.plt.offset;
c152c796 3844 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3845 &hh->eh))
8dea1268
AM
3846 {
3847 /* In a non-shared link, adjust_dynamic_symbols
3848 isn't called for symbols forced local. We
dc810e39 3849 need to write out the plt entry here. */
8dea1268
AM
3850 if ((off & 1) != 0)
3851 off &= ~1;
3852 else
3853 {
a63e02c7 3854 hh->eh.plt.offset |= 1;
ce757d15 3855 do_plt = 1;
8dea1268
AM
3856 }
3857 }
74d1c347
AM
3858 }
3859 else
3860 {
68fb2e56
AM
3861 bfd_vma *local_plt_offsets;
3862
3863 if (local_got_offsets == NULL)
3864 abort ();
74d1c347 3865
68fb2e56
AM
3866 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3867 off = local_plt_offsets[r_symndx];
74d1c347
AM
3868
3869 /* As for the local .got entry case, we use the last
3870 bit to record whether we've already initialised
3871 this local .plt entry. */
3872 if ((off & 1) != 0)
3873 off &= ~1;
ce757d15
AM
3874 else
3875 {
3876 local_plt_offsets[r_symndx] |= 1;
3877 do_plt = 1;
3878 }
3879 }
3880
3881 if (do_plt)
3882 {
3883 if (info->shared)
3884 {
3885 /* Output a dynamic IPLT relocation for this
3886 PLT entry. */
3887 Elf_Internal_Rela outrel;
947216bf
AM
3888 bfd_byte *loc;
3889 asection *s = htab->srelplt;
ce757d15
AM
3890
3891 outrel.r_offset = (off
3892 + htab->splt->output_offset
3893 + htab->splt->output_section->vma);
3894 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3895 outrel.r_addend = relocation;
947216bf
AM
3896 loc = s->contents;
3897 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3898 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3899 }
74d1c347
AM
3900 else
3901 {
3902 bfd_put_32 (output_bfd,
3903 relocation,
83c81bfe 3904 htab->splt->contents + off);
74d1c347 3905 bfd_put_32 (output_bfd,
83c81bfe
AM
3906 elf_gp (htab->splt->output_section->owner),
3907 htab->splt->contents + off + 4);
74d1c347
AM
3908 }
3909 }
3910
68fb2e56 3911 if (off >= (bfd_vma) -2)
49e9d0d3 3912 abort ();
74d1c347
AM
3913
3914 /* PLABELs contain function pointers. Relocation is to
3915 the entry for the function in the .plt. The magic +2
3916 offset signals to $$dyncall that the function pointer
3917 is in the .plt and thus has a gp pointer too.
3918 Exception: Undefined PLABELs should have a value of
3919 zero. */
875c0872 3920 if (hh == NULL
a63e02c7
DA
3921 || (hh->eh.root.type != bfd_link_hash_undefweak
3922 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3923 {
3924 relocation = (off
83c81bfe
AM
3925 + htab->splt->output_offset
3926 + htab->splt->output_section->vma
74d1c347
AM
3927 + 2);
3928 }
3929 plabel = 1;
30667bf3
AM
3930 }
3931 /* Fall through and possibly emit a dynamic relocation. */
3932
3933 case R_PARISC_DIR17F:
3934 case R_PARISC_DIR17R:
47d89dba 3935 case R_PARISC_DIR14F:
30667bf3
AM
3936 case R_PARISC_DIR14R:
3937 case R_PARISC_DIR21L:
3938 case R_PARISC_DPREL14F:
3939 case R_PARISC_DPREL14R:
3940 case R_PARISC_DPREL21L:
3941 case R_PARISC_DIR32:
ec338859
AM
3942 /* r_symndx will be zero only for relocs against symbols
3943 from removed linkonce sections, or sections discarded by
3944 a linker script. */
3945 if (r_symndx == 0
3946 || (input_section->flags & SEC_ALLOC) == 0)
3947 break;
3948
30667bf3 3949 /* The reloc types handled here and this conditional
56882138 3950 expression must match the code in ..check_relocs and
ec338859 3951 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3952 as in ..check_relocs, with some extra conditions (dynindx
3953 test in this case) to cater for relocs removed by
ec338859 3954 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3955 here does indeed match the one in ..check_relocs, the
3956 difference being that here we test DEF_DYNAMIC as well as
3957 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3958 which is why we can't use just that test here.
3959 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3960 there all files have not been loaded. */
446f2863 3961 if ((info->shared
875c0872 3962 && (hh == NULL
a63e02c7
DA
3963 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3964 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3965 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3966 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3967 || (!info->shared
875c0872 3968 && hh != NULL
a63e02c7
DA
3969 && hh->eh.dynindx != -1
3970 && !hh->eh.non_got_ref
4fc8051d 3971 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3972 && hh->eh.def_dynamic
3973 && !hh->eh.def_regular)
3974 || hh->eh.root.type == bfd_link_hash_undefweak
3975 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3976 {
3977 Elf_Internal_Rela outrel;
b34976b6 3978 bfd_boolean skip;
98ceb8ce 3979 asection *sreloc;
947216bf 3980 bfd_byte *loc;
252b5132 3981
30667bf3
AM
3982 /* When generating a shared object, these relocations
3983 are copied into the output file to be resolved at run
3984 time. */
252b5132 3985
875c0872 3986 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3987 outrel.r_offset =
3988 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3989 rela->r_offset);
0bb2d96a
JJ
3990 skip = (outrel.r_offset == (bfd_vma) -1
3991 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3992 outrel.r_offset += (input_section->output_offset
3993 + input_section->output_section->vma);
875c0872 3994
30667bf3 3995 if (skip)
252b5132 3996 {
30667bf3 3997 memset (&outrel, 0, sizeof (outrel));
252b5132 3998 }
875c0872 3999 else if (hh != NULL
a63e02c7 4000 && hh->eh.dynindx != -1
74d1c347 4001 && (plabel
446f2863
AM
4002 || !IS_ABSOLUTE_RELOC (r_type)
4003 || !info->shared
74d1c347 4004 || !info->symbolic
a63e02c7 4005 || !hh->eh.def_regular))
252b5132 4006 {
a63e02c7 4007 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4008 }
4009 else /* It's a local symbol, or one marked to become local. */
4010 {
4011 int indx = 0;
edd21aca 4012
30667bf3
AM
4013 /* Add the absolute offset of the symbol. */
4014 outrel.r_addend += relocation;
edd21aca 4015
74d1c347
AM
4016 /* Global plabels need to be processed by the
4017 dynamic linker so that functions have at most one
4018 fptr. For this reason, we need to differentiate
4019 between global and local plabels, which we do by
4020 providing the function symbol for a global plabel
4021 reloc, and no symbol for local plabels. */
4022 if (! plabel
4023 && sym_sec != NULL
30667bf3
AM
4024 && sym_sec->output_section != NULL
4025 && ! bfd_is_abs_section (sym_sec))
252b5132 4026 {
74541ad4
AM
4027 asection *osec;
4028
4029 osec = sym_sec->output_section;
4030 indx = elf_section_data (osec)->dynindx;
4031 if (indx == 0)
4032 {
4033 osec = htab->etab.text_index_section;
4034 indx = elf_section_data (osec)->dynindx;
4035 }
4036 BFD_ASSERT (indx != 0);
4b71bec0 4037
30667bf3
AM
4038 /* We are turning this relocation into one
4039 against a section symbol, so subtract out the
4040 output section's address but not the offset
4041 of the input section in the output section. */
74541ad4 4042 outrel.r_addend -= osec->vma;
252b5132 4043 }
252b5132 4044
30667bf3
AM
4045 outrel.r_info = ELF32_R_INFO (indx, r_type);
4046 }
98ceb8ce
AM
4047 sreloc = elf_section_data (input_section)->sreloc;
4048 if (sreloc == NULL)
4049 abort ();
4050
947216bf
AM
4051 loc = sreloc->contents;
4052 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4053 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4054 }
4055 break;
9b52905e
NC
4056
4057 case R_PARISC_TLS_LDM21L:
4058 case R_PARISC_TLS_LDM14R:
4059 {
4060 bfd_vma off;
4061
4062 off = htab->tls_ldm_got.offset;
4063 if (off & 1)
4064 off &= ~1;
4065 else
4066 {
4067 Elf_Internal_Rela outrel;
4068 bfd_byte *loc;
4069
4070 outrel.r_offset = (off
4071 + htab->sgot->output_section->vma
4072 + htab->sgot->output_offset);
4073 outrel.r_addend = 0;
4074 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4075 loc = htab->srelgot->contents;
4076 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4077
4078 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4079 htab->tls_ldm_got.offset |= 1;
4080 }
4081
4082 /* Add the base of the GOT to the relocation value. */
4083 relocation = (off
4084 + htab->sgot->output_offset
4085 + htab->sgot->output_section->vma);
4086
4087 break;
4088 }
4089
4090 case R_PARISC_TLS_LDO21L:
4091 case R_PARISC_TLS_LDO14R:
4092 relocation -= dtpoff_base (info);
4093 break;
4094
4095 case R_PARISC_TLS_GD21L:
4096 case R_PARISC_TLS_GD14R:
4097 case R_PARISC_TLS_IE21L:
4098 case R_PARISC_TLS_IE14R:
4099 {
4100 bfd_vma off;
4101 int indx;
4102 char tls_type;
4103
4104 indx = 0;
4105 if (hh != NULL)
4106 {
4107 bfd_boolean dyn;
4108 dyn = htab->etab.dynamic_sections_created;
4109
4110 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4111 && (!info->shared
4112 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4113 {
4114 indx = hh->eh.dynindx;
4115 }
4116 off = hh->eh.got.offset;
4117 tls_type = hh->tls_type;
4118 }
4119 else
4120 {
4121 off = local_got_offsets[r_symndx];
4122 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4123 }
4124
4125 if (tls_type == GOT_UNKNOWN)
4126 abort ();
4127
4128 if ((off & 1) != 0)
4129 off &= ~1;
4130 else
4131 {
4132 bfd_boolean need_relocs = FALSE;
4133 Elf_Internal_Rela outrel;
4134 bfd_byte *loc = NULL;
4135 int cur_off = off;
4136
4137 /* The GOT entries have not been initialized yet. Do it
4138 now, and emit any relocations. If both an IE GOT and a
4139 GD GOT are necessary, we emit the GD first. */
4140
4141 if ((info->shared || indx != 0)
4142 && (hh == NULL
4143 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4144 || hh->eh.root.type != bfd_link_hash_undefweak))
4145 {
4146 need_relocs = TRUE;
4147 loc = htab->srelgot->contents;
4148 /* FIXME (CAO): Should this be reloc_count++ ? */
4149 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4150 }
4151
4152 if (tls_type & GOT_TLS_GD)
4153 {
4154 if (need_relocs)
4155 {
4156 outrel.r_offset = (cur_off
4157 + htab->sgot->output_section->vma
4158 + htab->sgot->output_offset);
4159 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4160 outrel.r_addend = 0;
4161 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4162 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4163 htab->srelgot->reloc_count++;
4164 loc += sizeof (Elf32_External_Rela);
4165
4166 if (indx == 0)
4167 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4168 htab->sgot->contents + cur_off + 4);
4169 else
4170 {
4171 bfd_put_32 (output_bfd, 0,
4172 htab->sgot->contents + cur_off + 4);
4173 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4174 outrel.r_offset += 4;
4175 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4176 htab->srelgot->reloc_count++;
4177 loc += sizeof (Elf32_External_Rela);
4178 }
4179 }
4180 else
4181 {
4182 /* If we are not emitting relocations for a
4183 general dynamic reference, then we must be in a
4184 static link or an executable link with the
4185 symbol binding locally. Mark it as belonging
4186 to module 1, the executable. */
4187 bfd_put_32 (output_bfd, 1,
4188 htab->sgot->contents + cur_off);
4189 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4190 htab->sgot->contents + cur_off + 4);
4191 }
4192
4193
4194 cur_off += 8;
4195 }
4196
4197 if (tls_type & GOT_TLS_IE)
4198 {
4199 if (need_relocs)
4200 {
4201 outrel.r_offset = (cur_off
4202 + htab->sgot->output_section->vma
4203 + htab->sgot->output_offset);
4204 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4205
4206 if (indx == 0)
4207 outrel.r_addend = relocation - dtpoff_base (info);
4208 else
4209 outrel.r_addend = 0;
4210
4211 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4212 htab->srelgot->reloc_count++;
4213 loc += sizeof (Elf32_External_Rela);
4214 }
4215 else
4216 bfd_put_32 (output_bfd, tpoff (info, relocation),
4217 htab->sgot->contents + cur_off);
4218
4219 cur_off += 4;
4220 }
4221
4222 if (hh != NULL)
4223 hh->eh.got.offset |= 1;
4224 else
4225 local_got_offsets[r_symndx] |= 1;
4226 }
4227
4228 if ((tls_type & GOT_TLS_GD)
4229 && r_type != R_PARISC_TLS_GD21L
4230 && r_type != R_PARISC_TLS_GD14R)
4231 off += 2 * GOT_ENTRY_SIZE;
4232
4233 /* Add the base of the GOT to the relocation value. */
4234 relocation = (off
4235 + htab->sgot->output_offset
4236 + htab->sgot->output_section->vma);
4237
4238 break;
4239 }
4240
4241 case R_PARISC_TLS_LE21L:
4242 case R_PARISC_TLS_LE14R:
4243 {
4244 relocation = tpoff (info, relocation);
4245 break;
4246 }
4247 break;
edd21aca 4248
30667bf3
AM
4249 default:
4250 break;
4251 }
252b5132 4252
875c0872
DA
4253 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4254 htab, sym_sec, hh, info);
252b5132 4255
875c0872 4256 if (rstatus == bfd_reloc_ok)
30667bf3 4257 continue;
252b5132 4258
875c0872 4259 if (hh != NULL)
9b52905e 4260 sym_name = hh_name (hh);
30667bf3
AM
4261 else
4262 {
4263 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4264 symtab_hdr->sh_link,
4265 sym->st_name);
4266 if (sym_name == NULL)
b34976b6 4267 return FALSE;
30667bf3
AM
4268 if (*sym_name == '\0')
4269 sym_name = bfd_section_name (input_bfd, sym_sec);
4270 }
edd21aca 4271
30667bf3 4272 howto = elf_hppa_howto_table + r_type;
252b5132 4273
875c0872 4274 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4275 {
875c0872 4276 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4277 {
4278 (*_bfd_error_handler)
d003868e
AM
4279 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4280 input_bfd,
4281 input_section,
875c0872 4282 (long) rela->r_offset,
f09ebc7d
AM
4283 howto->name,
4284 sym_name);
4285 bfd_set_error (bfd_error_bad_value);
b34976b6 4286 return FALSE;
f09ebc7d 4287 }
30667bf3
AM
4288 }
4289 else
4290 {
4291 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4292 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4293 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4294 return FALSE;
30667bf3
AM
4295 }
4296 }
edd21aca 4297
b34976b6 4298 return TRUE;
30667bf3 4299}
252b5132 4300
30667bf3
AM
4301/* Finish up dynamic symbol handling. We set the contents of various
4302 dynamic sections here. */
252b5132 4303
b34976b6 4304static bfd_boolean
c39a58e6
AM
4305elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4306 struct bfd_link_info *info,
875c0872 4307 struct elf_link_hash_entry *eh,
c39a58e6 4308 Elf_Internal_Sym *sym)
30667bf3 4309{
83c81bfe 4310 struct elf32_hppa_link_hash_table *htab;
875c0872 4311 Elf_Internal_Rela rela;
a252afa4 4312 bfd_byte *loc;
edd21aca 4313
83c81bfe 4314 htab = hppa_link_hash_table (info);
30667bf3 4315
875c0872 4316 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4317 {
4318 bfd_vma value;
30667bf3 4319
875c0872 4320 if (eh->plt.offset & 1)
8dea1268
AM
4321 abort ();
4322
30667bf3
AM
4323 /* This symbol has an entry in the procedure linkage table. Set
4324 it up.
4325
4326 The format of a plt entry is
74d1c347
AM
4327 <funcaddr>
4328 <__gp>
47d89dba 4329 */
30667bf3 4330 value = 0;
875c0872
DA
4331 if (eh->root.type == bfd_link_hash_defined
4332 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4333 {
875c0872
DA
4334 value = eh->root.u.def.value;
4335 if (eh->root.u.def.section->output_section != NULL)
4336 value += (eh->root.u.def.section->output_offset
4337 + eh->root.u.def.section->output_section->vma);
252b5132 4338 }
edd21aca 4339
a252afa4 4340 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4341 rela.r_offset = (eh->plt.offset
a252afa4
DA
4342 + htab->splt->output_offset
4343 + htab->splt->output_section->vma);
875c0872 4344 if (eh->dynindx != -1)
30667bf3 4345 {
875c0872
DA
4346 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4347 rela.r_addend = 0;
30667bf3 4348 }
ce757d15 4349 else
47d89dba 4350 {
a252afa4
DA
4351 /* This symbol has been marked to become local, and is
4352 used by a plabel so must be kept in the .plt. */
875c0872
DA
4353 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4354 rela.r_addend = value;
47d89dba
AM
4355 }
4356
a252afa4
DA
4357 loc = htab->srelplt->contents;
4358 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4359 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4360
875c0872 4361 if (!eh->def_regular)
30667bf3
AM
4362 {
4363 /* Mark the symbol as undefined, rather than as defined in
4364 the .plt section. Leave the value alone. */
4365 sym->st_shndx = SHN_UNDEF;
4366 }
4367 }
edd21aca 4368
9b52905e
NC
4369 if (eh->got.offset != (bfd_vma) -1
4370 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4371 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4372 {
30667bf3
AM
4373 /* This symbol has an entry in the global offset table. Set it
4374 up. */
4375
875c0872 4376 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4377 + htab->sgot->output_offset
4378 + htab->sgot->output_section->vma);
30667bf3 4379
4dc86686
AM
4380 /* If this is a -Bsymbolic link and the symbol is defined
4381 locally or was forced to be local because of a version file,
4382 we just want to emit a RELATIVE reloc. The entry in the
4383 global offset table will already have been initialized in the
4384 relocate_section function. */
4385 if (info->shared
875c0872
DA
4386 && (info->symbolic || eh->dynindx == -1)
4387 && eh->def_regular)
30667bf3 4388 {
875c0872
DA
4389 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4390 rela.r_addend = (eh->root.u.def.value
4391 + eh->root.u.def.section->output_offset
4392 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4393 }
4394 else
4395 {
875c0872 4396 if ((eh->got.offset & 1) != 0)
49e9d0d3 4397 abort ();
875c0872
DA
4398
4399 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4400 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4401 rela.r_addend = 0;
30667bf3 4402 }
edd21aca 4403
947216bf
AM
4404 loc = htab->srelgot->contents;
4405 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4406 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4407 }
edd21aca 4408
875c0872 4409 if (eh->needs_copy)
30667bf3 4410 {
875c0872 4411 asection *sec;
30667bf3
AM
4412
4413 /* This symbol needs a copy reloc. Set it up. */
4414
875c0872
DA
4415 if (! (eh->dynindx != -1
4416 && (eh->root.type == bfd_link_hash_defined
4417 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4418 abort ();
30667bf3 4419
875c0872 4420 sec = htab->srelbss;
30667bf3 4421
875c0872
DA
4422 rela.r_offset = (eh->root.u.def.value
4423 + eh->root.u.def.section->output_offset
4424 + eh->root.u.def.section->output_section->vma);
4425 rela.r_addend = 0;
4426 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4427 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4428 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4429 }
4430
4431 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9b52905e
NC
4432 if (eh_name (eh)[0] == '_'
4433 && (strcmp (eh_name (eh), "_DYNAMIC") == 0
22edb2f1 4434 || eh == htab->etab.hgot))
30667bf3
AM
4435 {
4436 sym->st_shndx = SHN_ABS;
4437 }
4438
b34976b6 4439 return TRUE;
30667bf3
AM
4440}
4441
98ceb8ce
AM
4442/* Used to decide how to sort relocs in an optimal manner for the
4443 dynamic linker, before writing them out. */
4444
4445static enum elf_reloc_type_class
c39a58e6 4446elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
98ceb8ce 4447{
9b52905e
NC
4448 /* Handle TLS relocs first; we don't want them to be marked
4449 relative by the "if (ELF32_R_SYM (rela->r_info) == 0)"
4450 check below. */
4451 switch ((int) ELF32_R_TYPE (rela->r_info))
4452 {
4453 case R_PARISC_TLS_DTPMOD32:
4454 case R_PARISC_TLS_DTPOFF32:
4455 case R_PARISC_TLS_TPREL32:
4456 return reloc_class_normal;
4457 }
4458
98ceb8ce
AM
4459 if (ELF32_R_SYM (rela->r_info) == 0)
4460 return reloc_class_relative;
4461
4462 switch ((int) ELF32_R_TYPE (rela->r_info))
4463 {
4464 case R_PARISC_IPLT:
4465 return reloc_class_plt;
4466 case R_PARISC_COPY:
4467 return reloc_class_copy;
4468 default:
4469 return reloc_class_normal;
4470 }
4471}
4472
30667bf3
AM
4473/* Finish up the dynamic sections. */
4474
b34976b6 4475static bfd_boolean
c39a58e6
AM
4476elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4477 struct bfd_link_info *info)
30667bf3
AM
4478{
4479 bfd *dynobj;
83c81bfe 4480 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
4481 asection *sdyn;
4482
83c81bfe 4483 htab = hppa_link_hash_table (info);
a63e02c7 4484 dynobj = htab->etab.dynobj;
30667bf3
AM
4485
4486 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4487
a63e02c7 4488 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4489 {
4490 Elf32_External_Dyn *dyncon, *dynconend;
4491
49e9d0d3
AM
4492 if (sdyn == NULL)
4493 abort ();
30667bf3
AM
4494
4495 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4496 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4497 for (; dyncon < dynconend; dyncon++)
edd21aca 4498 {
30667bf3
AM
4499 Elf_Internal_Dyn dyn;
4500 asection *s;
4501
4502 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4503
4504 switch (dyn.d_tag)
4505 {
4506 default:
3ac8354b 4507 continue;
30667bf3
AM
4508
4509 case DT_PLTGOT:
4510 /* Use PLTGOT to set the GOT register. */
4511 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4512 break;
4513
4514 case DT_JMPREL:
83c81bfe 4515 s = htab->srelplt;
30667bf3 4516 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4517 break;
4518
4519 case DT_PLTRELSZ:
83c81bfe 4520 s = htab->srelplt;
eea6121a 4521 dyn.d_un.d_val = s->size;
30667bf3 4522 break;
4e12ff7f
AM
4523
4524 case DT_RELASZ:
4525 /* Don't count procedure linkage table relocs in the
4526 overall reloc count. */
6348e046
AM
4527 s = htab->srelplt;
4528 if (s == NULL)
4529 continue;
eea6121a 4530 dyn.d_un.d_val -= s->size;
6348e046
AM
4531 break;
4532
4533 case DT_RELA:
4534 /* We may not be using the standard ELF linker script.
4535 If .rela.plt is the first .rela section, we adjust
4536 DT_RELA to not include it. */
4537 s = htab->srelplt;
4538 if (s == NULL)
4539 continue;
4540 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4541 continue;
eea6121a 4542 dyn.d_un.d_ptr += s->size;
4e12ff7f 4543 break;
30667bf3 4544 }
3ac8354b
AM
4545
4546 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4547 }
252b5132 4548 }
edd21aca 4549
eea6121a 4550 if (htab->sgot != NULL && htab->sgot->size != 0)
30667bf3 4551 {
74d1c347
AM
4552 /* Fill in the first entry in the global offset table.
4553 We use it to point to our dynamic section, if we have one. */
30667bf3 4554 bfd_put_32 (output_bfd,
c39a58e6 4555 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
83c81bfe 4556 htab->sgot->contents);
30667bf3 4557
74d1c347 4558 /* The second entry is reserved for use by the dynamic linker. */
83c81bfe 4559 memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4560
30667bf3 4561 /* Set .got entry size. */
83c81bfe 4562 elf_section_data (htab->sgot->output_section)
74d1c347 4563 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4564 }
4565
eea6121a 4566 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4567 {
4568 /* Set plt entry size. */
83c81bfe 4569 elf_section_data (htab->splt->output_section)
47d89dba
AM
4570 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4571
83c81bfe 4572 if (htab->need_plt_stub)
47d89dba
AM
4573 {
4574 /* Set up the .plt stub. */
83c81bfe 4575 memcpy (htab->splt->contents
eea6121a 4576 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4577 plt_stub, sizeof (plt_stub));
4578
83c81bfe
AM
4579 if ((htab->splt->output_offset
4580 + htab->splt->output_section->vma
eea6121a 4581 + htab->splt->size)
83c81bfe
AM
4582 != (htab->sgot->output_offset
4583 + htab->sgot->output_section->vma))
47d89dba
AM
4584 {
4585 (*_bfd_error_handler)
4586 (_(".got section not immediately after .plt section"));
b34976b6 4587 return FALSE;
47d89dba
AM
4588 }
4589 }
4590 }
30667bf3 4591
b34976b6 4592 return TRUE;
30667bf3 4593}
252b5132 4594
d952f17a
AM
4595/* Tweak the OSABI field of the elf header. */
4596
4597static void
c39a58e6
AM
4598elf32_hppa_post_process_headers (bfd *abfd,
4599 struct bfd_link_info *info ATTRIBUTE_UNUSED)
d952f17a
AM
4600{
4601 Elf_Internal_Ehdr * i_ehdrp;
4602
4603 i_ehdrp = elf_elfheader (abfd);
4604
4605 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
4606 {
4607 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX;
4608 }
225247f0
JT
4609 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
4610 {
4611 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_NETBSD;
4612 }
d952f17a
AM
4613 else
4614 {
4615 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
4616 }
4617}
4618
30667bf3
AM
4619/* Called when writing out an object file to decide the type of a
4620 symbol. */
4621static int
c39a58e6 4622elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4623{
4624 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4625 return STT_PARISC_MILLI;
4626 else
4627 return type;
252b5132
RH
4628}
4629
4630/* Misc BFD support code. */
30667bf3
AM
4631#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4632#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4633#define elf_info_to_howto elf_hppa_info_to_howto
4634#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4635
252b5132 4636/* Stuff for the BFD linker. */
c46b7515 4637#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4638#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4639#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4640#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4641#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4642#define elf_backend_check_relocs elf32_hppa_check_relocs
4643#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4644#define elf_backend_fake_sections elf_hppa_fake_sections
4645#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4646#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4647#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4648#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4649#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4650#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4651#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4652#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4653#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4654#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4655#define elf_backend_object_p elf32_hppa_object_p
4656#define elf_backend_final_write_processing elf_hppa_final_write_processing
d952f17a 4657#define elf_backend_post_process_headers elf32_hppa_post_process_headers
30667bf3 4658#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4659#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4660#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4661
4662#define elf_backend_can_gc_sections 1
51b64d56 4663#define elf_backend_can_refcount 1
30667bf3
AM
4664#define elf_backend_plt_alignment 2
4665#define elf_backend_want_got_plt 0
4666#define elf_backend_plt_readonly 0
4667#define elf_backend_want_plt_sym 0
74d1c347 4668#define elf_backend_got_header_size 8
f0fe0e16 4669#define elf_backend_rela_normal 1
252b5132
RH
4670
4671#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4672#define TARGET_BIG_NAME "elf32-hppa"
4673#define ELF_ARCH bfd_arch_hppa
4674#define ELF_MACHINE_CODE EM_PARISC
4675#define ELF_MAXPAGESIZE 0x1000
4676
4677#include "elf32-target.h"
d952f17a
AM
4678
4679#undef TARGET_BIG_SYM
4680#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
4681#undef TARGET_BIG_NAME
4682#define TARGET_BIG_NAME "elf32-hppa-linux"
4683
4684#define INCLUDED_TARGET_FILE 1
4685#include "elf32-target.h"
225247f0
JT
4686
4687#undef TARGET_BIG_SYM
4688#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
4689#undef TARGET_BIG_NAME
4690#define TARGET_BIG_NAME "elf32-hppa-netbsd"
4691
4692#include "elf32-target.h"
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