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1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
3
4 Original code by
5 Center for Software Science
6 Department of Computer Science
7 University of Utah
8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
10 TLS support written by Randolph Chung <tausq@debian.org>
11
12 This file is part of BFD, the Binary File Descriptor library.
13
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 3 of the License, or
17 (at your option) any later version.
18
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
23
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
28
29 #include "sysdep.h"
30 #include "bfd.h"
31 #include "libbfd.h"
32 #include "elf-bfd.h"
33 #include "elf/hppa.h"
34 #include "libhppa.h"
35 #include "elf32-hppa.h"
36 #define ARCH_SIZE 32
37 #include "elf32-hppa.h"
38 #include "elf-hppa.h"
39
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
51 /* We use two hash tables to hold information for linking PA ELF objects.
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
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
69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
71
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
76 : bv %r0(%r21)
77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
78
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
83 : bv %r0(%r21)
84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
85
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
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.
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)
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.
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
116 : be,n 0(%sr0,%rp) ; inter-space return. */
117
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
139 #define PLT_ENTRY_SIZE 8
140 #define GOT_ENTRY_SIZE 4
141 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
142
143 static 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
155 /* Section name for stubs is the associated section name plus this
156 string. */
157 #define STUB_SUFFIX ".stub"
158
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
164 #define IS_ABSOLUTE_RELOC(r_type) 1
165 #endif
166
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
173 enum elf32_hppa_stub_type
174 {
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
183 struct elf32_hppa_stub_hash_entry
184 {
185 /* Base hash table entry structure. */
186 struct bfd_hash_entry bh_root;
187
188 /* The stub section. */
189 asection *stub_sec;
190
191 /* Offset within stub_sec of the beginning of this stub. */
192 bfd_vma stub_offset;
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. */
196 bfd_vma target_value;
197 asection *target_section;
198
199 enum elf32_hppa_stub_type stub_type;
200
201 /* The symbol table entry, if any, that this was derived from. */
202 struct elf32_hppa_link_hash_entry *hh;
203
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;
207 };
208
209 struct elf32_hppa_link_hash_entry
210 {
211 struct elf_link_hash_entry eh;
212
213 /* A pointer to the most recently used stub hash entry against this
214 symbol. */
215 struct elf32_hppa_stub_hash_entry *hsh_cache;
216
217 /* Used to count relocations for delayed sizing of relocation
218 sections. */
219 struct elf32_hppa_dyn_reloc_entry
220 {
221 /* Next relocation in the chain. */
222 struct elf32_hppa_dyn_reloc_entry *hdh_next;
223
224 /* The input section of the reloc. */
225 asection *sec;
226
227 /* Number of relocs copied in this section. */
228 bfd_size_type count;
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;
235
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
241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel:1;
243 };
244
245 struct elf32_hppa_link_hash_table
246 {
247 /* The main hash table. */
248 struct elf_link_hash_table etab;
249
250 /* The stub hash table. */
251 struct bfd_hash_table bstab;
252
253 /* Linker stub bfd. */
254 bfd *stub_bfd;
255
256 /* Linker call-backs. */
257 asection * (*add_stub_section) (const char *, asection *);
258 void (*layout_sections_again) (void);
259
260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
262 struct map_stub
263 {
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;
269 } *stub_group;
270
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
273 unsigned int top_index;
274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
276
277 /* Used during a final link to store the base of the text and data
278 segments so that we can perform SEGREL relocations. */
279 bfd_vma text_segment_base;
280 bfd_vma data_segment_base;
281
282 /* Whether we support multiple sub-spaces for shared libs. */
283 unsigned int multi_subspace:1;
284
285 /* Flags set when various size branches are detected. Used to
286 select suitable defaults for the stub group size. */
287 unsigned int has_12bit_branch:1;
288 unsigned int has_17bit_branch:1;
289 unsigned int has_22bit_branch:1;
290
291 /* Set if we need a .plt stub to support lazy dynamic linking. */
292 unsigned int need_plt_stub:1;
293
294 /* Small local sym cache. */
295 struct sym_cache sym_cache;
296
297 /* Data for LDM relocations. */
298 union
299 {
300 bfd_signed_vma refcount;
301 bfd_vma offset;
302 } tls_ldm_got;
303 };
304
305 /* Various hash macros and functions. */
306 #define hppa_link_hash_table(p) \
307 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
308 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
309
310 #define hppa_elf_hash_entry(ent) \
311 ((struct elf32_hppa_link_hash_entry *)(ent))
312
313 #define hppa_stub_hash_entry(ent) \
314 ((struct elf32_hppa_stub_hash_entry *)(ent))
315
316 #define hppa_stub_hash_lookup(table, string, create, copy) \
317 ((struct elf32_hppa_stub_hash_entry *) \
318 bfd_hash_lookup ((table), (string), (create), (copy)))
319
320 #define hppa_elf_local_got_tls_type(abfd) \
321 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
322
323 #define hh_name(hh) \
324 (hh ? hh->eh.root.root.string : "<undef>")
325
326 #define eh_name(eh) \
327 (eh ? eh->root.root.string : "<undef>")
328
329 /* Assorted hash table functions. */
330
331 /* Initialize an entry in the stub hash table. */
332
333 static struct bfd_hash_entry *
334 stub_hash_newfunc (struct bfd_hash_entry *entry,
335 struct bfd_hash_table *table,
336 const char *string)
337 {
338 /* Allocate the structure if it has not already been allocated by a
339 subclass. */
340 if (entry == NULL)
341 {
342 entry = bfd_hash_allocate (table,
343 sizeof (struct elf32_hppa_stub_hash_entry));
344 if (entry == NULL)
345 return entry;
346 }
347
348 /* Call the allocation method of the superclass. */
349 entry = bfd_hash_newfunc (entry, table, string);
350 if (entry != NULL)
351 {
352 struct elf32_hppa_stub_hash_entry *hsh;
353
354 /* Initialize the local fields. */
355 hsh = hppa_stub_hash_entry (entry);
356 hsh->stub_sec = NULL;
357 hsh->stub_offset = 0;
358 hsh->target_value = 0;
359 hsh->target_section = NULL;
360 hsh->stub_type = hppa_stub_long_branch;
361 hsh->hh = NULL;
362 hsh->id_sec = NULL;
363 }
364
365 return entry;
366 }
367
368 /* Initialize an entry in the link hash table. */
369
370 static struct bfd_hash_entry *
371 hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
372 struct bfd_hash_table *table,
373 const char *string)
374 {
375 /* Allocate the structure if it has not already been allocated by a
376 subclass. */
377 if (entry == NULL)
378 {
379 entry = bfd_hash_allocate (table,
380 sizeof (struct elf32_hppa_link_hash_entry));
381 if (entry == NULL)
382 return entry;
383 }
384
385 /* Call the allocation method of the superclass. */
386 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
387 if (entry != NULL)
388 {
389 struct elf32_hppa_link_hash_entry *hh;
390
391 /* Initialize the local fields. */
392 hh = hppa_elf_hash_entry (entry);
393 hh->hsh_cache = NULL;
394 hh->dyn_relocs = NULL;
395 hh->plabel = 0;
396 hh->tls_type = GOT_UNKNOWN;
397 }
398
399 return entry;
400 }
401
402 /* Free the derived linker hash table. */
403
404 static void
405 elf32_hppa_link_hash_table_free (bfd *obfd)
406 {
407 struct elf32_hppa_link_hash_table *htab
408 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
409
410 bfd_hash_table_free (&htab->bstab);
411 _bfd_elf_link_hash_table_free (obfd);
412 }
413
414 /* Create the derived linker hash table. The PA ELF port uses the derived
415 hash table to keep information specific to the PA ELF linker (without
416 using static variables). */
417
418 static struct bfd_link_hash_table *
419 elf32_hppa_link_hash_table_create (bfd *abfd)
420 {
421 struct elf32_hppa_link_hash_table *htab;
422 bfd_size_type amt = sizeof (*htab);
423
424 htab = bfd_zmalloc (amt);
425 if (htab == NULL)
426 return NULL;
427
428 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
429 sizeof (struct elf32_hppa_link_hash_entry),
430 HPPA32_ELF_DATA))
431 {
432 free (htab);
433 return NULL;
434 }
435
436 /* Init the stub hash table too. */
437 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
438 sizeof (struct elf32_hppa_stub_hash_entry)))
439 {
440 _bfd_elf_link_hash_table_free (abfd);
441 return NULL;
442 }
443 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
444
445 htab->text_segment_base = (bfd_vma) -1;
446 htab->data_segment_base = (bfd_vma) -1;
447 return &htab->etab.root;
448 }
449
450 /* Initialize the linker stubs BFD so that we can use it for linker
451 created dynamic sections. */
452
453 void
454 elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
455 {
456 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
457
458 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
459 htab->etab.dynobj = abfd;
460 }
461
462 /* Build a name for an entry in the stub hash table. */
463
464 static char *
465 hppa_stub_name (const asection *input_section,
466 const asection *sym_sec,
467 const struct elf32_hppa_link_hash_entry *hh,
468 const Elf_Internal_Rela *rela)
469 {
470 char *stub_name;
471 bfd_size_type len;
472
473 if (hh)
474 {
475 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
476 stub_name = bfd_malloc (len);
477 if (stub_name != NULL)
478 sprintf (stub_name, "%08x_%s+%x",
479 input_section->id & 0xffffffff,
480 hh_name (hh),
481 (int) rela->r_addend & 0xffffffff);
482 }
483 else
484 {
485 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
486 stub_name = bfd_malloc (len);
487 if (stub_name != NULL)
488 sprintf (stub_name, "%08x_%x:%x+%x",
489 input_section->id & 0xffffffff,
490 sym_sec->id & 0xffffffff,
491 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
492 (int) rela->r_addend & 0xffffffff);
493 }
494 return stub_name;
495 }
496
497 /* Look up an entry in the stub hash. Stub entries are cached because
498 creating the stub name takes a bit of time. */
499
500 static struct elf32_hppa_stub_hash_entry *
501 hppa_get_stub_entry (const asection *input_section,
502 const asection *sym_sec,
503 struct elf32_hppa_link_hash_entry *hh,
504 const Elf_Internal_Rela *rela,
505 struct elf32_hppa_link_hash_table *htab)
506 {
507 struct elf32_hppa_stub_hash_entry *hsh_entry;
508 const asection *id_sec;
509
510 /* If this input section is part of a group of sections sharing one
511 stub section, then use the id of the first section in the group.
512 Stub names need to include a section id, as there may well be
513 more than one stub used to reach say, printf, and we need to
514 distinguish between them. */
515 id_sec = htab->stub_group[input_section->id].link_sec;
516
517 if (hh != NULL && hh->hsh_cache != NULL
518 && hh->hsh_cache->hh == hh
519 && hh->hsh_cache->id_sec == id_sec)
520 {
521 hsh_entry = hh->hsh_cache;
522 }
523 else
524 {
525 char *stub_name;
526
527 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
528 if (stub_name == NULL)
529 return NULL;
530
531 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
532 stub_name, FALSE, FALSE);
533 if (hh != NULL)
534 hh->hsh_cache = hsh_entry;
535
536 free (stub_name);
537 }
538
539 return hsh_entry;
540 }
541
542 /* Add a new stub entry to the stub hash. Not all fields of the new
543 stub entry are initialised. */
544
545 static struct elf32_hppa_stub_hash_entry *
546 hppa_add_stub (const char *stub_name,
547 asection *section,
548 struct elf32_hppa_link_hash_table *htab)
549 {
550 asection *link_sec;
551 asection *stub_sec;
552 struct elf32_hppa_stub_hash_entry *hsh;
553
554 link_sec = htab->stub_group[section->id].link_sec;
555 stub_sec = htab->stub_group[section->id].stub_sec;
556 if (stub_sec == NULL)
557 {
558 stub_sec = htab->stub_group[link_sec->id].stub_sec;
559 if (stub_sec == NULL)
560 {
561 size_t namelen;
562 bfd_size_type len;
563 char *s_name;
564
565 namelen = strlen (link_sec->name);
566 len = namelen + sizeof (STUB_SUFFIX);
567 s_name = bfd_alloc (htab->stub_bfd, len);
568 if (s_name == NULL)
569 return NULL;
570
571 memcpy (s_name, link_sec->name, namelen);
572 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
573 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
574 if (stub_sec == NULL)
575 return NULL;
576 htab->stub_group[link_sec->id].stub_sec = stub_sec;
577 }
578 htab->stub_group[section->id].stub_sec = stub_sec;
579 }
580
581 /* Enter this entry into the linker stub hash table. */
582 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
583 TRUE, FALSE);
584 if (hsh == NULL)
585 {
586 /* xgettext:c-format */
587 _bfd_error_handler (_("%B: cannot create stub entry %s"),
588 section->owner, stub_name);
589 return NULL;
590 }
591
592 hsh->stub_sec = stub_sec;
593 hsh->stub_offset = 0;
594 hsh->id_sec = link_sec;
595 return hsh;
596 }
597
598 /* Determine the type of stub needed, if any, for a call. */
599
600 static enum elf32_hppa_stub_type
601 hppa_type_of_stub (asection *input_sec,
602 const Elf_Internal_Rela *rela,
603 struct elf32_hppa_link_hash_entry *hh,
604 bfd_vma destination,
605 struct bfd_link_info *info)
606 {
607 bfd_vma location;
608 bfd_vma branch_offset;
609 bfd_vma max_branch_offset;
610 unsigned int r_type;
611
612 if (hh != NULL
613 && hh->eh.plt.offset != (bfd_vma) -1
614 && hh->eh.dynindx != -1
615 && !hh->plabel
616 && (bfd_link_pic (info)
617 || !hh->eh.def_regular
618 || hh->eh.root.type == bfd_link_hash_defweak))
619 {
620 /* We need an import stub. Decide between hppa_stub_import
621 and hppa_stub_import_shared later. */
622 return hppa_stub_import;
623 }
624
625 /* Determine where the call point is. */
626 location = (input_sec->output_offset
627 + input_sec->output_section->vma
628 + rela->r_offset);
629
630 branch_offset = destination - location - 8;
631 r_type = ELF32_R_TYPE (rela->r_info);
632
633 /* Determine if a long branch stub is needed. parisc branch offsets
634 are relative to the second instruction past the branch, ie. +8
635 bytes on from the branch instruction location. The offset is
636 signed and counts in units of 4 bytes. */
637 if (r_type == (unsigned int) R_PARISC_PCREL17F)
638 max_branch_offset = (1 << (17 - 1)) << 2;
639
640 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
641 max_branch_offset = (1 << (12 - 1)) << 2;
642
643 else /* R_PARISC_PCREL22F. */
644 max_branch_offset = (1 << (22 - 1)) << 2;
645
646 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
647 return hppa_stub_long_branch;
648
649 return hppa_stub_none;
650 }
651
652 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
653 IN_ARG contains the link info pointer. */
654
655 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
656 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
657
658 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
659 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
660 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
661
662 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
663 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
664 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
665 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
666
667 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
668 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
669
670 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
671 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
672 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
673 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
674
675 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
676 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
677 #define NOP 0x08000240 /* nop */
678 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
679 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
680 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
681
682 #ifndef R19_STUBS
683 #define R19_STUBS 1
684 #endif
685
686 #if R19_STUBS
687 #define LDW_R1_DLT LDW_R1_R19
688 #else
689 #define LDW_R1_DLT LDW_R1_DP
690 #endif
691
692 static bfd_boolean
693 hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
694 {
695 struct elf32_hppa_stub_hash_entry *hsh;
696 struct bfd_link_info *info;
697 struct elf32_hppa_link_hash_table *htab;
698 asection *stub_sec;
699 bfd *stub_bfd;
700 bfd_byte *loc;
701 bfd_vma sym_value;
702 bfd_vma insn;
703 bfd_vma off;
704 int val;
705 int size;
706
707 /* Massage our args to the form they really have. */
708 hsh = hppa_stub_hash_entry (bh);
709 info = (struct bfd_link_info *)in_arg;
710
711 htab = hppa_link_hash_table (info);
712 if (htab == NULL)
713 return FALSE;
714
715 stub_sec = hsh->stub_sec;
716
717 /* Make a note of the offset within the stubs for this entry. */
718 hsh->stub_offset = stub_sec->size;
719 loc = stub_sec->contents + hsh->stub_offset;
720
721 stub_bfd = stub_sec->owner;
722
723 switch (hsh->stub_type)
724 {
725 case hppa_stub_long_branch:
726 /* Create the long branch. A long branch is formed with "ldil"
727 loading the upper bits of the target address into a register,
728 then branching with "be" which adds in the lower bits.
729 The "be" has its delay slot nullified. */
730 sym_value = (hsh->target_value
731 + hsh->target_section->output_offset
732 + hsh->target_section->output_section->vma);
733
734 val = hppa_field_adjust (sym_value, 0, e_lrsel);
735 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
736 bfd_put_32 (stub_bfd, insn, loc);
737
738 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
739 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
740 bfd_put_32 (stub_bfd, insn, loc + 4);
741
742 size = 8;
743 break;
744
745 case hppa_stub_long_branch_shared:
746 /* Branches are relative. This is where we are going to. */
747 sym_value = (hsh->target_value
748 + hsh->target_section->output_offset
749 + hsh->target_section->output_section->vma);
750
751 /* And this is where we are coming from, more or less. */
752 sym_value -= (hsh->stub_offset
753 + stub_sec->output_offset
754 + stub_sec->output_section->vma);
755
756 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
757 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
758 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
759 bfd_put_32 (stub_bfd, insn, loc + 4);
760
761 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
762 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
763 bfd_put_32 (stub_bfd, insn, loc + 8);
764 size = 12;
765 break;
766
767 case hppa_stub_import:
768 case hppa_stub_import_shared:
769 off = hsh->hh->eh.plt.offset;
770 if (off >= (bfd_vma) -2)
771 abort ();
772
773 off &= ~ (bfd_vma) 1;
774 sym_value = (off
775 + htab->etab.splt->output_offset
776 + htab->etab.splt->output_section->vma
777 - elf_gp (htab->etab.splt->output_section->owner));
778
779 insn = ADDIL_DP;
780 #if R19_STUBS
781 if (hsh->stub_type == hppa_stub_import_shared)
782 insn = ADDIL_R19;
783 #endif
784 val = hppa_field_adjust (sym_value, 0, e_lrsel),
785 insn = hppa_rebuild_insn ((int) insn, val, 21);
786 bfd_put_32 (stub_bfd, insn, loc);
787
788 /* It is critical to use lrsel/rrsel here because we are using
789 two different offsets (+0 and +4) from sym_value. If we use
790 lsel/rsel then with unfortunate sym_values we will round
791 sym_value+4 up to the next 2k block leading to a mis-match
792 between the lsel and rsel value. */
793 val = hppa_field_adjust (sym_value, 0, e_rrsel);
794 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
795 bfd_put_32 (stub_bfd, insn, loc + 4);
796
797 if (htab->multi_subspace)
798 {
799 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
800 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
801 bfd_put_32 (stub_bfd, insn, loc + 8);
802
803 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
804 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
805 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
806 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
807
808 size = 28;
809 }
810 else
811 {
812 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
813 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
814 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
815 bfd_put_32 (stub_bfd, insn, loc + 12);
816
817 size = 16;
818 }
819
820 break;
821
822 case hppa_stub_export:
823 /* Branches are relative. This is where we are going to. */
824 sym_value = (hsh->target_value
825 + hsh->target_section->output_offset
826 + hsh->target_section->output_section->vma);
827
828 /* And this is where we are coming from. */
829 sym_value -= (hsh->stub_offset
830 + stub_sec->output_offset
831 + stub_sec->output_section->vma);
832
833 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
834 && (!htab->has_22bit_branch
835 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
836 {
837 _bfd_error_handler
838 /* xgettext:c-format */
839 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
840 hsh->target_section->owner,
841 stub_sec,
842 hsh->stub_offset,
843 hsh->bh_root.string);
844 bfd_set_error (bfd_error_bad_value);
845 return FALSE;
846 }
847
848 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
849 if (!htab->has_22bit_branch)
850 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
851 else
852 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
853 bfd_put_32 (stub_bfd, insn, loc);
854
855 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
856 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
857 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
858 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
859 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
860
861 /* Point the function symbol at the stub. */
862 hsh->hh->eh.root.u.def.section = stub_sec;
863 hsh->hh->eh.root.u.def.value = stub_sec->size;
864
865 size = 24;
866 break;
867
868 default:
869 BFD_FAIL ();
870 return FALSE;
871 }
872
873 stub_sec->size += size;
874 return TRUE;
875 }
876
877 #undef LDIL_R1
878 #undef BE_SR4_R1
879 #undef BL_R1
880 #undef ADDIL_R1
881 #undef DEPI_R1
882 #undef LDW_R1_R21
883 #undef LDW_R1_DLT
884 #undef LDW_R1_R19
885 #undef ADDIL_R19
886 #undef LDW_R1_DP
887 #undef LDSID_R21_R1
888 #undef MTSP_R1
889 #undef BE_SR0_R21
890 #undef STW_RP
891 #undef BV_R0_R21
892 #undef BL_RP
893 #undef NOP
894 #undef LDW_RP
895 #undef LDSID_RP_R1
896 #undef BE_SR0_RP
897
898 /* As above, but don't actually build the stub. Just bump offset so
899 we know stub section sizes. */
900
901 static bfd_boolean
902 hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
903 {
904 struct elf32_hppa_stub_hash_entry *hsh;
905 struct elf32_hppa_link_hash_table *htab;
906 int size;
907
908 /* Massage our args to the form they really have. */
909 hsh = hppa_stub_hash_entry (bh);
910 htab = in_arg;
911
912 if (hsh->stub_type == hppa_stub_long_branch)
913 size = 8;
914 else if (hsh->stub_type == hppa_stub_long_branch_shared)
915 size = 12;
916 else if (hsh->stub_type == hppa_stub_export)
917 size = 24;
918 else /* hppa_stub_import or hppa_stub_import_shared. */
919 {
920 if (htab->multi_subspace)
921 size = 28;
922 else
923 size = 16;
924 }
925
926 hsh->stub_sec->size += size;
927 return TRUE;
928 }
929
930 /* Return nonzero if ABFD represents an HPPA ELF32 file.
931 Additionally we set the default architecture and machine. */
932
933 static bfd_boolean
934 elf32_hppa_object_p (bfd *abfd)
935 {
936 Elf_Internal_Ehdr * i_ehdrp;
937 unsigned int flags;
938
939 i_ehdrp = elf_elfheader (abfd);
940 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
941 {
942 /* GCC on hppa-linux produces binaries with OSABI=GNU,
943 but the kernel produces corefiles with OSABI=SysV. */
944 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
945 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
946 return FALSE;
947 }
948 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
949 {
950 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
951 but the kernel produces corefiles with OSABI=SysV. */
952 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
953 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
954 return FALSE;
955 }
956 else
957 {
958 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
959 return FALSE;
960 }
961
962 flags = i_ehdrp->e_flags;
963 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
964 {
965 case EFA_PARISC_1_0:
966 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
967 case EFA_PARISC_1_1:
968 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
969 case EFA_PARISC_2_0:
970 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
971 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
972 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
973 }
974 return TRUE;
975 }
976
977 /* Create the .plt and .got sections, and set up our hash table
978 short-cuts to various dynamic sections. */
979
980 static bfd_boolean
981 elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
982 {
983 struct elf32_hppa_link_hash_table *htab;
984 struct elf_link_hash_entry *eh;
985
986 /* Don't try to create the .plt and .got twice. */
987 htab = hppa_link_hash_table (info);
988 if (htab == NULL)
989 return FALSE;
990 if (htab->etab.splt != NULL)
991 return TRUE;
992
993 /* Call the generic code to do most of the work. */
994 if (! _bfd_elf_create_dynamic_sections (abfd, info))
995 return FALSE;
996
997 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 application, because __canonicalize_funcptr_for_compare needs it. */
999 eh = elf_hash_table (info)->hgot;
1000 eh->forced_local = 0;
1001 eh->other = STV_DEFAULT;
1002 return bfd_elf_link_record_dynamic_symbol (info, eh);
1003 }
1004
1005 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1006
1007 static void
1008 elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1009 struct elf_link_hash_entry *eh_dir,
1010 struct elf_link_hash_entry *eh_ind)
1011 {
1012 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1013
1014 hh_dir = hppa_elf_hash_entry (eh_dir);
1015 hh_ind = hppa_elf_hash_entry (eh_ind);
1016
1017 if (hh_ind->dyn_relocs != NULL)
1018 {
1019 if (hh_dir->dyn_relocs != NULL)
1020 {
1021 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1022 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1023
1024 /* Add reloc counts against the indirect sym to the direct sym
1025 list. Merge any entries against the same section. */
1026 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1027 {
1028 struct elf32_hppa_dyn_reloc_entry *hdh_q;
1029
1030 for (hdh_q = hh_dir->dyn_relocs;
1031 hdh_q != NULL;
1032 hdh_q = hdh_q->hdh_next)
1033 if (hdh_q->sec == hdh_p->sec)
1034 {
1035 #if RELATIVE_DYNRELOCS
1036 hdh_q->relative_count += hdh_p->relative_count;
1037 #endif
1038 hdh_q->count += hdh_p->count;
1039 *hdh_pp = hdh_p->hdh_next;
1040 break;
1041 }
1042 if (hdh_q == NULL)
1043 hdh_pp = &hdh_p->hdh_next;
1044 }
1045 *hdh_pp = hh_dir->dyn_relocs;
1046 }
1047
1048 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1049 hh_ind->dyn_relocs = NULL;
1050 }
1051
1052 if (ELIMINATE_COPY_RELOCS
1053 && eh_ind->root.type != bfd_link_hash_indirect
1054 && eh_dir->dynamic_adjusted)
1055 {
1056 /* If called to transfer flags for a weakdef during processing
1057 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1059 if (eh_dir->versioned != versioned_hidden)
1060 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1061 eh_dir->ref_regular |= eh_ind->ref_regular;
1062 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1063 eh_dir->needs_plt |= eh_ind->needs_plt;
1064 }
1065 else
1066 {
1067 if (eh_ind->root.type == bfd_link_hash_indirect)
1068 {
1069 hh_dir->plabel |= hh_ind->plabel;
1070 hh_dir->tls_type |= hh_ind->tls_type;
1071 hh_ind->tls_type = GOT_UNKNOWN;
1072 }
1073
1074 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1075 }
1076 }
1077
1078 static int
1079 elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1080 int r_type, int is_local ATTRIBUTE_UNUSED)
1081 {
1082 /* For now we don't support linker optimizations. */
1083 return r_type;
1084 }
1085
1086 /* Return a pointer to the local GOT, PLT and TLS reference counts
1087 for ABFD. Returns NULL if the storage allocation fails. */
1088
1089 static bfd_signed_vma *
1090 hppa32_elf_local_refcounts (bfd *abfd)
1091 {
1092 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1093 bfd_signed_vma *local_refcounts;
1094
1095 local_refcounts = elf_local_got_refcounts (abfd);
1096 if (local_refcounts == NULL)
1097 {
1098 bfd_size_type size;
1099
1100 /* Allocate space for local GOT and PLT reference
1101 counts. Done this way to save polluting elf_obj_tdata
1102 with another target specific pointer. */
1103 size = symtab_hdr->sh_info;
1104 size *= 2 * sizeof (bfd_signed_vma);
1105 /* Add in space to store the local GOT TLS types. */
1106 size += symtab_hdr->sh_info;
1107 local_refcounts = bfd_zalloc (abfd, size);
1108 if (local_refcounts == NULL)
1109 return NULL;
1110 elf_local_got_refcounts (abfd) = local_refcounts;
1111 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1112 symtab_hdr->sh_info);
1113 }
1114 return local_refcounts;
1115 }
1116
1117
1118 /* Look through the relocs for a section during the first phase, and
1119 calculate needed space in the global offset table, procedure linkage
1120 table, and dynamic reloc sections. At this point we haven't
1121 necessarily read all the input files. */
1122
1123 static bfd_boolean
1124 elf32_hppa_check_relocs (bfd *abfd,
1125 struct bfd_link_info *info,
1126 asection *sec,
1127 const Elf_Internal_Rela *relocs)
1128 {
1129 Elf_Internal_Shdr *symtab_hdr;
1130 struct elf_link_hash_entry **eh_syms;
1131 const Elf_Internal_Rela *rela;
1132 const Elf_Internal_Rela *rela_end;
1133 struct elf32_hppa_link_hash_table *htab;
1134 asection *sreloc;
1135 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
1136
1137 if (bfd_link_relocatable (info))
1138 return TRUE;
1139
1140 htab = hppa_link_hash_table (info);
1141 if (htab == NULL)
1142 return FALSE;
1143 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1144 eh_syms = elf_sym_hashes (abfd);
1145 sreloc = NULL;
1146
1147 rela_end = relocs + sec->reloc_count;
1148 for (rela = relocs; rela < rela_end; rela++)
1149 {
1150 enum {
1151 NEED_GOT = 1,
1152 NEED_PLT = 2,
1153 NEED_DYNREL = 4,
1154 PLT_PLABEL = 8
1155 };
1156
1157 unsigned int r_symndx, r_type;
1158 struct elf32_hppa_link_hash_entry *hh;
1159 int need_entry = 0;
1160
1161 r_symndx = ELF32_R_SYM (rela->r_info);
1162
1163 if (r_symndx < symtab_hdr->sh_info)
1164 hh = NULL;
1165 else
1166 {
1167 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1168 while (hh->eh.root.type == bfd_link_hash_indirect
1169 || hh->eh.root.type == bfd_link_hash_warning)
1170 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1171
1172 /* PR15323, ref flags aren't set for references in the same
1173 object. */
1174 hh->eh.root.non_ir_ref_regular = 1;
1175 }
1176
1177 r_type = ELF32_R_TYPE (rela->r_info);
1178 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1179
1180 switch (r_type)
1181 {
1182 case R_PARISC_DLTIND14F:
1183 case R_PARISC_DLTIND14R:
1184 case R_PARISC_DLTIND21L:
1185 /* This symbol requires a global offset table entry. */
1186 need_entry = NEED_GOT;
1187 break;
1188
1189 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1190 case R_PARISC_PLABEL21L:
1191 case R_PARISC_PLABEL32:
1192 /* If the addend is non-zero, we break badly. */
1193 if (rela->r_addend != 0)
1194 abort ();
1195
1196 /* If we are creating a shared library, then we need to
1197 create a PLT entry for all PLABELs, because PLABELs with
1198 local symbols may be passed via a pointer to another
1199 object. Additionally, output a dynamic relocation
1200 pointing to the PLT entry.
1201
1202 For executables, the original 32-bit ABI allowed two
1203 different styles of PLABELs (function pointers): For
1204 global functions, the PLABEL word points into the .plt
1205 two bytes past a (function address, gp) pair, and for
1206 local functions the PLABEL points directly at the
1207 function. The magic +2 for the first type allows us to
1208 differentiate between the two. As you can imagine, this
1209 is a real pain when it comes to generating code to call
1210 functions indirectly or to compare function pointers.
1211 We avoid the mess by always pointing a PLABEL into the
1212 .plt, even for local functions. */
1213 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
1214 break;
1215
1216 case R_PARISC_PCREL12F:
1217 htab->has_12bit_branch = 1;
1218 goto branch_common;
1219
1220 case R_PARISC_PCREL17C:
1221 case R_PARISC_PCREL17F:
1222 htab->has_17bit_branch = 1;
1223 goto branch_common;
1224
1225 case R_PARISC_PCREL22F:
1226 htab->has_22bit_branch = 1;
1227 branch_common:
1228 /* Function calls might need to go through the .plt, and
1229 might require long branch stubs. */
1230 if (hh == NULL)
1231 {
1232 /* We know local syms won't need a .plt entry, and if
1233 they need a long branch stub we can't guarantee that
1234 we can reach the stub. So just flag an error later
1235 if we're doing a shared link and find we need a long
1236 branch stub. */
1237 continue;
1238 }
1239 else
1240 {
1241 /* Global symbols will need a .plt entry if they remain
1242 global, and in most cases won't need a long branch
1243 stub. Unfortunately, we have to cater for the case
1244 where a symbol is forced local by versioning, or due
1245 to symbolic linking, and we lose the .plt entry. */
1246 need_entry = NEED_PLT;
1247 if (hh->eh.type == STT_PARISC_MILLI)
1248 need_entry = 0;
1249 }
1250 break;
1251
1252 case R_PARISC_SEGBASE: /* Used to set segment base. */
1253 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1254 case R_PARISC_PCREL14F: /* PC relative load/store. */
1255 case R_PARISC_PCREL14R:
1256 case R_PARISC_PCREL17R: /* External branches. */
1257 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1258 case R_PARISC_PCREL32:
1259 /* We don't need to propagate the relocation if linking a
1260 shared object since these are section relative. */
1261 continue;
1262
1263 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1264 case R_PARISC_DPREL14R:
1265 case R_PARISC_DPREL21L:
1266 if (bfd_link_pic (info))
1267 {
1268 _bfd_error_handler
1269 /* xgettext:c-format */
1270 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1271 abfd,
1272 elf_hppa_howto_table[r_type].name);
1273 bfd_set_error (bfd_error_bad_value);
1274 return FALSE;
1275 }
1276 /* Fall through. */
1277
1278 case R_PARISC_DIR17F: /* Used for external branches. */
1279 case R_PARISC_DIR17R:
1280 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1281 case R_PARISC_DIR14R:
1282 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1283 case R_PARISC_DIR32: /* .word relocs. */
1284 /* We may want to output a dynamic relocation later. */
1285 need_entry = NEED_DYNREL;
1286 break;
1287
1288 /* This relocation describes the C++ object vtable hierarchy.
1289 Reconstruct it for later use during GC. */
1290 case R_PARISC_GNU_VTINHERIT:
1291 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1292 return FALSE;
1293 continue;
1294
1295 /* This relocation describes which C++ vtable entries are actually
1296 used. Record for later use during GC. */
1297 case R_PARISC_GNU_VTENTRY:
1298 BFD_ASSERT (hh != NULL);
1299 if (hh != NULL
1300 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1301 return FALSE;
1302 continue;
1303
1304 case R_PARISC_TLS_GD21L:
1305 case R_PARISC_TLS_GD14R:
1306 case R_PARISC_TLS_LDM21L:
1307 case R_PARISC_TLS_LDM14R:
1308 need_entry = NEED_GOT;
1309 break;
1310
1311 case R_PARISC_TLS_IE21L:
1312 case R_PARISC_TLS_IE14R:
1313 if (bfd_link_pic (info))
1314 info->flags |= DF_STATIC_TLS;
1315 need_entry = NEED_GOT;
1316 break;
1317
1318 default:
1319 continue;
1320 }
1321
1322 /* Now carry out our orders. */
1323 if (need_entry & NEED_GOT)
1324 {
1325 switch (r_type)
1326 {
1327 default:
1328 tls_type = GOT_NORMAL;
1329 break;
1330 case R_PARISC_TLS_GD21L:
1331 case R_PARISC_TLS_GD14R:
1332 tls_type |= GOT_TLS_GD;
1333 break;
1334 case R_PARISC_TLS_LDM21L:
1335 case R_PARISC_TLS_LDM14R:
1336 tls_type |= GOT_TLS_LDM;
1337 break;
1338 case R_PARISC_TLS_IE21L:
1339 case R_PARISC_TLS_IE14R:
1340 tls_type |= GOT_TLS_IE;
1341 break;
1342 }
1343
1344 /* Allocate space for a GOT entry, as well as a dynamic
1345 relocation for this entry. */
1346 if (htab->etab.sgot == NULL)
1347 {
1348 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1349 return FALSE;
1350 }
1351
1352 if (r_type == R_PARISC_TLS_LDM21L
1353 || r_type == R_PARISC_TLS_LDM14R)
1354 htab->tls_ldm_got.refcount += 1;
1355 else
1356 {
1357 if (hh != NULL)
1358 {
1359 hh->eh.got.refcount += 1;
1360 old_tls_type = hh->tls_type;
1361 }
1362 else
1363 {
1364 bfd_signed_vma *local_got_refcounts;
1365
1366 /* This is a global offset table entry for a local symbol. */
1367 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1368 if (local_got_refcounts == NULL)
1369 return FALSE;
1370 local_got_refcounts[r_symndx] += 1;
1371
1372 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1373 }
1374
1375 tls_type |= old_tls_type;
1376
1377 if (old_tls_type != tls_type)
1378 {
1379 if (hh != NULL)
1380 hh->tls_type = tls_type;
1381 else
1382 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1383 }
1384
1385 }
1386 }
1387
1388 if (need_entry & NEED_PLT)
1389 {
1390 /* If we are creating a shared library, and this is a reloc
1391 against a weak symbol or a global symbol in a dynamic
1392 object, then we will be creating an import stub and a
1393 .plt entry for the symbol. Similarly, on a normal link
1394 to symbols defined in a dynamic object we'll need the
1395 import stub and a .plt entry. We don't know yet whether
1396 the symbol is defined or not, so make an entry anyway and
1397 clean up later in adjust_dynamic_symbol. */
1398 if ((sec->flags & SEC_ALLOC) != 0)
1399 {
1400 if (hh != NULL)
1401 {
1402 hh->eh.needs_plt = 1;
1403 hh->eh.plt.refcount += 1;
1404
1405 /* If this .plt entry is for a plabel, mark it so
1406 that adjust_dynamic_symbol will keep the entry
1407 even if it appears to be local. */
1408 if (need_entry & PLT_PLABEL)
1409 hh->plabel = 1;
1410 }
1411 else if (need_entry & PLT_PLABEL)
1412 {
1413 bfd_signed_vma *local_got_refcounts;
1414 bfd_signed_vma *local_plt_refcounts;
1415
1416 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1417 if (local_got_refcounts == NULL)
1418 return FALSE;
1419 local_plt_refcounts = (local_got_refcounts
1420 + symtab_hdr->sh_info);
1421 local_plt_refcounts[r_symndx] += 1;
1422 }
1423 }
1424 }
1425
1426 if (need_entry & NEED_DYNREL)
1427 {
1428 /* Flag this symbol as having a non-got, non-plt reference
1429 so that we generate copy relocs if it turns out to be
1430 dynamic. */
1431 if (hh != NULL && !bfd_link_pic (info))
1432 hh->eh.non_got_ref = 1;
1433
1434 /* If we are creating a shared library then we need to copy
1435 the reloc into the shared library. However, if we are
1436 linking with -Bsymbolic, we need only copy absolute
1437 relocs or relocs against symbols that are not defined in
1438 an object we are including in the link. PC- or DP- or
1439 DLT-relative relocs against any local sym or global sym
1440 with DEF_REGULAR set, can be discarded. At this point we
1441 have not seen all the input files, so it is possible that
1442 DEF_REGULAR is not set now but will be set later (it is
1443 never cleared). We account for that possibility below by
1444 storing information in the dyn_relocs field of the
1445 hash table entry.
1446
1447 A similar situation to the -Bsymbolic case occurs when
1448 creating shared libraries and symbol visibility changes
1449 render the symbol local.
1450
1451 As it turns out, all the relocs we will be creating here
1452 are absolute, so we cannot remove them on -Bsymbolic
1453 links or visibility changes anyway. A STUB_REL reloc
1454 is absolute too, as in that case it is the reloc in the
1455 stub we will be creating, rather than copying the PCREL
1456 reloc in the branch.
1457
1458 If on the other hand, we are creating an executable, we
1459 may need to keep relocations for symbols satisfied by a
1460 dynamic library if we manage to avoid copy relocs for the
1461 symbol. */
1462 if ((bfd_link_pic (info)
1463 && (sec->flags & SEC_ALLOC) != 0
1464 && (IS_ABSOLUTE_RELOC (r_type)
1465 || (hh != NULL
1466 && (!SYMBOLIC_BIND (info, &hh->eh)
1467 || hh->eh.root.type == bfd_link_hash_defweak
1468 || !hh->eh.def_regular))))
1469 || (ELIMINATE_COPY_RELOCS
1470 && !bfd_link_pic (info)
1471 && (sec->flags & SEC_ALLOC) != 0
1472 && hh != NULL
1473 && (hh->eh.root.type == bfd_link_hash_defweak
1474 || !hh->eh.def_regular)))
1475 {
1476 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1477 struct elf32_hppa_dyn_reloc_entry **hdh_head;
1478
1479 /* Create a reloc section in dynobj and make room for
1480 this reloc. */
1481 if (sreloc == NULL)
1482 {
1483 sreloc = _bfd_elf_make_dynamic_reloc_section
1484 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1485
1486 if (sreloc == NULL)
1487 {
1488 bfd_set_error (bfd_error_bad_value);
1489 return FALSE;
1490 }
1491 }
1492
1493 /* If this is a global symbol, we count the number of
1494 relocations we need for this symbol. */
1495 if (hh != NULL)
1496 {
1497 hdh_head = &hh->dyn_relocs;
1498 }
1499 else
1500 {
1501 /* Track dynamic relocs needed for local syms too.
1502 We really need local syms available to do this
1503 easily. Oh well. */
1504 asection *sr;
1505 void *vpp;
1506 Elf_Internal_Sym *isym;
1507
1508 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1509 abfd, r_symndx);
1510 if (isym == NULL)
1511 return FALSE;
1512
1513 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1514 if (sr == NULL)
1515 sr = sec;
1516
1517 vpp = &elf_section_data (sr)->local_dynrel;
1518 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
1519 }
1520
1521 hdh_p = *hdh_head;
1522 if (hdh_p == NULL || hdh_p->sec != sec)
1523 {
1524 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1525 if (hdh_p == NULL)
1526 return FALSE;
1527 hdh_p->hdh_next = *hdh_head;
1528 *hdh_head = hdh_p;
1529 hdh_p->sec = sec;
1530 hdh_p->count = 0;
1531 #if RELATIVE_DYNRELOCS
1532 hdh_p->relative_count = 0;
1533 #endif
1534 }
1535
1536 hdh_p->count += 1;
1537 #if RELATIVE_DYNRELOCS
1538 if (!IS_ABSOLUTE_RELOC (rtype))
1539 hdh_p->relative_count += 1;
1540 #endif
1541 }
1542 }
1543 }
1544
1545 return TRUE;
1546 }
1547
1548 /* Return the section that should be marked against garbage collection
1549 for a given relocation. */
1550
1551 static asection *
1552 elf32_hppa_gc_mark_hook (asection *sec,
1553 struct bfd_link_info *info,
1554 Elf_Internal_Rela *rela,
1555 struct elf_link_hash_entry *hh,
1556 Elf_Internal_Sym *sym)
1557 {
1558 if (hh != NULL)
1559 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1560 {
1561 case R_PARISC_GNU_VTINHERIT:
1562 case R_PARISC_GNU_VTENTRY:
1563 return NULL;
1564 }
1565
1566 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1567 }
1568
1569 /* Support for core dump NOTE sections. */
1570
1571 static bfd_boolean
1572 elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1573 {
1574 int offset;
1575 size_t size;
1576
1577 switch (note->descsz)
1578 {
1579 default:
1580 return FALSE;
1581
1582 case 396: /* Linux/hppa */
1583 /* pr_cursig */
1584 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1585
1586 /* pr_pid */
1587 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1588
1589 /* pr_reg */
1590 offset = 72;
1591 size = 320;
1592
1593 break;
1594 }
1595
1596 /* Make a ".reg/999" section. */
1597 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1598 size, note->descpos + offset);
1599 }
1600
1601 static bfd_boolean
1602 elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1603 {
1604 switch (note->descsz)
1605 {
1606 default:
1607 return FALSE;
1608
1609 case 124: /* Linux/hppa elf_prpsinfo. */
1610 elf_tdata (abfd)->core->program
1611 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1612 elf_tdata (abfd)->core->command
1613 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1614 }
1615
1616 /* Note that for some reason, a spurious space is tacked
1617 onto the end of the args in some (at least one anyway)
1618 implementations, so strip it off if it exists. */
1619 {
1620 char *command = elf_tdata (abfd)->core->command;
1621 int n = strlen (command);
1622
1623 if (0 < n && command[n - 1] == ' ')
1624 command[n - 1] = '\0';
1625 }
1626
1627 return TRUE;
1628 }
1629
1630 /* Our own version of hide_symbol, so that we can keep plt entries for
1631 plabels. */
1632
1633 static void
1634 elf32_hppa_hide_symbol (struct bfd_link_info *info,
1635 struct elf_link_hash_entry *eh,
1636 bfd_boolean force_local)
1637 {
1638 if (force_local)
1639 {
1640 eh->forced_local = 1;
1641 if (eh->dynindx != -1)
1642 {
1643 eh->dynindx = -1;
1644 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1645 eh->dynstr_index);
1646 }
1647
1648 /* PR 16082: Remove version information from hidden symbol. */
1649 eh->verinfo.verdef = NULL;
1650 eh->verinfo.vertree = NULL;
1651 }
1652
1653 /* STT_GNU_IFUNC symbol must go through PLT. */
1654 if (! hppa_elf_hash_entry (eh)->plabel
1655 && eh->type != STT_GNU_IFUNC)
1656 {
1657 eh->needs_plt = 0;
1658 eh->plt = elf_hash_table (info)->init_plt_offset;
1659 }
1660 }
1661
1662 /* Adjust a symbol defined by a dynamic object and referenced by a
1663 regular object. The current definition is in some section of the
1664 dynamic object, but we're not including those sections. We have to
1665 change the definition to something the rest of the link can
1666 understand. */
1667
1668 static bfd_boolean
1669 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1670 struct elf_link_hash_entry *eh)
1671 {
1672 struct elf32_hppa_link_hash_table *htab;
1673 asection *sec, *srel;
1674
1675 /* If this is a function, put it in the procedure linkage table. We
1676 will fill in the contents of the procedure linkage table later. */
1677 if (eh->type == STT_FUNC
1678 || eh->needs_plt)
1679 {
1680 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1681 The refcounts are not reliable when it has been hidden since
1682 hide_symbol can be called before the plabel flag is set. */
1683 if (hppa_elf_hash_entry (eh)->plabel
1684 && eh->plt.refcount <= 0)
1685 eh->plt.refcount = 1;
1686
1687 if (eh->plt.refcount <= 0
1688 || (eh->def_regular
1689 && eh->root.type != bfd_link_hash_defweak
1690 && ! hppa_elf_hash_entry (eh)->plabel
1691 && (!bfd_link_pic (info) || SYMBOLIC_BIND (info, eh))))
1692 {
1693 /* The .plt entry is not needed when:
1694 a) Garbage collection has removed all references to the
1695 symbol, or
1696 b) We know for certain the symbol is defined in this
1697 object, and it's not a weak definition, nor is the symbol
1698 used by a plabel relocation. Either this object is the
1699 application or we are doing a shared symbolic link. */
1700
1701 eh->plt.offset = (bfd_vma) -1;
1702 eh->needs_plt = 0;
1703 }
1704
1705 return TRUE;
1706 }
1707 else
1708 eh->plt.offset = (bfd_vma) -1;
1709
1710 /* If this is a weak symbol, and there is a real definition, the
1711 processor independent code will have arranged for us to see the
1712 real definition first, and we can just use the same value. */
1713 if (eh->u.weakdef != NULL)
1714 {
1715 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1716 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
1717 abort ();
1718 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1719 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
1720 if (ELIMINATE_COPY_RELOCS)
1721 eh->non_got_ref = eh->u.weakdef->non_got_ref;
1722 return TRUE;
1723 }
1724
1725 /* This is a reference to a symbol defined by a dynamic object which
1726 is not a function. */
1727
1728 /* If we are creating a shared library, we must presume that the
1729 only references to the symbol are via the global offset table.
1730 For such cases we need not do anything here; the relocations will
1731 be handled correctly by relocate_section. */
1732 if (bfd_link_pic (info))
1733 return TRUE;
1734
1735 /* If there are no references to this symbol that do not use the
1736 GOT, we don't need to generate a copy reloc. */
1737 if (!eh->non_got_ref)
1738 return TRUE;
1739
1740 if (ELIMINATE_COPY_RELOCS)
1741 {
1742 struct elf32_hppa_link_hash_entry *hh;
1743 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1744
1745 hh = hppa_elf_hash_entry (eh);
1746 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1747 {
1748 sec = hdh_p->sec->output_section;
1749 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1750 break;
1751 }
1752
1753 /* If we didn't find any dynamic relocs in read-only sections, then
1754 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1755 if (hdh_p == NULL)
1756 {
1757 eh->non_got_ref = 0;
1758 return TRUE;
1759 }
1760 }
1761
1762 /* We must allocate the symbol in our .dynbss section, which will
1763 become part of the .bss section of the executable. There will be
1764 an entry for this symbol in the .dynsym section. The dynamic
1765 object will contain position independent code, so all references
1766 from the dynamic object to this symbol will go through the global
1767 offset table. The dynamic linker will use the .dynsym entry to
1768 determine the address it must put in the global offset table, so
1769 both the dynamic object and the regular object will refer to the
1770 same memory location for the variable. */
1771
1772 htab = hppa_link_hash_table (info);
1773 if (htab == NULL)
1774 return FALSE;
1775
1776 /* We must generate a COPY reloc to tell the dynamic linker to
1777 copy the initial value out of the dynamic object and into the
1778 runtime process image. */
1779 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1780 {
1781 sec = htab->etab.sdynrelro;
1782 srel = htab->etab.sreldynrelro;
1783 }
1784 else
1785 {
1786 sec = htab->etab.sdynbss;
1787 srel = htab->etab.srelbss;
1788 }
1789 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1790 {
1791 srel->size += sizeof (Elf32_External_Rela);
1792 eh->needs_copy = 1;
1793 }
1794
1795 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
1796 }
1797
1798 /* If EH is undefined, make it dynamic if that makes sense. */
1799
1800 static bfd_boolean
1801 ensure_undef_dynamic (struct bfd_link_info *info,
1802 struct elf_link_hash_entry *eh)
1803 {
1804 struct elf_link_hash_table *htab = elf_hash_table (info);
1805
1806 if (htab->dynamic_sections_created
1807 && (eh->root.type == bfd_link_hash_undefweak
1808 || eh->root.type == bfd_link_hash_undefined)
1809 && eh->dynindx == -1
1810 && !eh->forced_local
1811 && eh->type != STT_PARISC_MILLI
1812 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)
1813 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1814 return bfd_elf_link_record_dynamic_symbol (info, eh);
1815 return TRUE;
1816 }
1817
1818 /* Allocate space in the .plt for entries that won't have relocations.
1819 ie. plabel entries. */
1820
1821 static bfd_boolean
1822 allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1823 {
1824 struct bfd_link_info *info;
1825 struct elf32_hppa_link_hash_table *htab;
1826 struct elf32_hppa_link_hash_entry *hh;
1827 asection *sec;
1828
1829 if (eh->root.type == bfd_link_hash_indirect)
1830 return TRUE;
1831
1832 info = (struct bfd_link_info *) inf;
1833 hh = hppa_elf_hash_entry (eh);
1834 htab = hppa_link_hash_table (info);
1835 if (htab == NULL)
1836 return FALSE;
1837
1838 if (htab->etab.dynamic_sections_created
1839 && eh->plt.refcount > 0)
1840 {
1841 if (!ensure_undef_dynamic (info, eh))
1842 return FALSE;
1843
1844 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
1845 {
1846 /* Allocate these later. From this point on, h->plabel
1847 means that the plt entry is only used by a plabel.
1848 We'll be using a normal plt entry for this symbol, so
1849 clear the plabel indicator. */
1850
1851 hh->plabel = 0;
1852 }
1853 else if (hh->plabel)
1854 {
1855 /* Make an entry in the .plt section for plabel references
1856 that won't have a .plt entry for other reasons. */
1857 sec = htab->etab.splt;
1858 eh->plt.offset = sec->size;
1859 sec->size += PLT_ENTRY_SIZE;
1860 if (bfd_link_pic (info))
1861 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1862 }
1863 else
1864 {
1865 /* No .plt entry needed. */
1866 eh->plt.offset = (bfd_vma) -1;
1867 eh->needs_plt = 0;
1868 }
1869 }
1870 else
1871 {
1872 eh->plt.offset = (bfd_vma) -1;
1873 eh->needs_plt = 0;
1874 }
1875
1876 return TRUE;
1877 }
1878
1879 /* Allocate space in .plt, .got and associated reloc sections for
1880 global syms. */
1881
1882 static bfd_boolean
1883 allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
1884 {
1885 struct bfd_link_info *info;
1886 struct elf32_hppa_link_hash_table *htab;
1887 asection *sec;
1888 struct elf32_hppa_link_hash_entry *hh;
1889 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1890
1891 if (eh->root.type == bfd_link_hash_indirect)
1892 return TRUE;
1893
1894 info = inf;
1895 htab = hppa_link_hash_table (info);
1896 if (htab == NULL)
1897 return FALSE;
1898
1899 hh = hppa_elf_hash_entry (eh);
1900
1901 if (htab->etab.dynamic_sections_created
1902 && eh->plt.offset != (bfd_vma) -1
1903 && !hh->plabel
1904 && eh->plt.refcount > 0)
1905 {
1906 /* Make an entry in the .plt section. */
1907 sec = htab->etab.splt;
1908 eh->plt.offset = sec->size;
1909 sec->size += PLT_ENTRY_SIZE;
1910
1911 /* We also need to make an entry in the .rela.plt section. */
1912 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1913 htab->need_plt_stub = 1;
1914 }
1915
1916 if (eh->got.refcount > 0)
1917 {
1918 if (!ensure_undef_dynamic (info, eh))
1919 return FALSE;
1920
1921 sec = htab->etab.sgot;
1922 eh->got.offset = sec->size;
1923 sec->size += GOT_ENTRY_SIZE;
1924 /* R_PARISC_TLS_GD* needs two GOT entries */
1925 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
1926 sec->size += GOT_ENTRY_SIZE * 2;
1927 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
1928 sec->size += GOT_ENTRY_SIZE;
1929 if (htab->etab.dynamic_sections_created
1930 && (bfd_link_pic (info)
1931 || (eh->dynindx != -1
1932 && !eh->forced_local)))
1933 {
1934 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
1935 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
1936 htab->etab.srelgot->size += 2 * sizeof (Elf32_External_Rela);
1937 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
1938 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
1939 }
1940 }
1941 else
1942 eh->got.offset = (bfd_vma) -1;
1943
1944 if (hh->dyn_relocs == NULL)
1945 return TRUE;
1946
1947 /* If this is a -Bsymbolic shared link, then we need to discard all
1948 space allocated for dynamic pc-relative relocs against symbols
1949 defined in a regular object. For the normal shared case, discard
1950 space for relocs that have become local due to symbol visibility
1951 changes. */
1952 if (bfd_link_pic (info))
1953 {
1954 /* Discard relocs on undefined syms with non-default visibility. */
1955 if ((eh->root.type == bfd_link_hash_undefined
1956 || eh->root.type == bfd_link_hash_undefweak)
1957 && (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT
1958 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)))
1959 hh->dyn_relocs = NULL;
1960
1961 #if RELATIVE_DYNRELOCS
1962 else if (SYMBOL_CALLS_LOCAL (info, eh))
1963 {
1964 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1965
1966 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1967 {
1968 hdh_p->count -= hdh_p->relative_count;
1969 hdh_p->relative_count = 0;
1970 if (hdh_p->count == 0)
1971 *hdh_pp = hdh_p->hdh_next;
1972 else
1973 hdh_pp = &hdh_p->hdh_next;
1974 }
1975 }
1976 #endif
1977
1978 if (hh->dyn_relocs != NULL)
1979 {
1980 if (!ensure_undef_dynamic (info, eh))
1981 return FALSE;
1982 }
1983 }
1984 else
1985 {
1986 /* For the non-shared case, discard space for relocs against
1987 symbols which turn out to need copy relocs or are not
1988 dynamic. */
1989
1990 if (!eh->non_got_ref
1991 && ((ELIMINATE_COPY_RELOCS
1992 && eh->def_dynamic
1993 && !eh->def_regular)
1994 || (htab->etab.dynamic_sections_created
1995 && (eh->root.type == bfd_link_hash_undefweak
1996 || eh->root.type == bfd_link_hash_undefined))))
1997 {
1998 if (!ensure_undef_dynamic (info, eh))
1999 return FALSE;
2000
2001 if (eh->dynindx == -1)
2002 hh->dyn_relocs = NULL;
2003 }
2004 else
2005 hh->dyn_relocs = NULL;
2006 }
2007
2008 /* Finally, allocate space. */
2009 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2010 {
2011 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2012 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2013 }
2014
2015 return TRUE;
2016 }
2017
2018 /* This function is called via elf_link_hash_traverse to force
2019 millicode symbols local so they do not end up as globals in the
2020 dynamic symbol table. We ought to be able to do this in
2021 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2022 for all dynamic symbols. Arguably, this is a bug in
2023 elf_adjust_dynamic_symbol. */
2024
2025 static bfd_boolean
2026 clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2027 struct bfd_link_info *info)
2028 {
2029 if (eh->type == STT_PARISC_MILLI
2030 && !eh->forced_local)
2031 {
2032 elf32_hppa_hide_symbol (info, eh, TRUE);
2033 }
2034 return TRUE;
2035 }
2036
2037 /* Find any dynamic relocs that apply to read-only sections. */
2038
2039 static bfd_boolean
2040 readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
2041 {
2042 struct elf32_hppa_link_hash_entry *hh;
2043 struct elf32_hppa_dyn_reloc_entry *hdh_p;
2044
2045 hh = hppa_elf_hash_entry (eh);
2046 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2047 {
2048 asection *sec = hdh_p->sec->output_section;
2049
2050 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
2051 {
2052 struct bfd_link_info *info = inf;
2053
2054 info->flags |= DF_TEXTREL;
2055
2056 /* Not an error, just cut short the traversal. */
2057 return FALSE;
2058 }
2059 }
2060 return TRUE;
2061 }
2062
2063 /* Set the sizes of the dynamic sections. */
2064
2065 static bfd_boolean
2066 elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2067 struct bfd_link_info *info)
2068 {
2069 struct elf32_hppa_link_hash_table *htab;
2070 bfd *dynobj;
2071 bfd *ibfd;
2072 asection *sec;
2073 bfd_boolean relocs;
2074
2075 htab = hppa_link_hash_table (info);
2076 if (htab == NULL)
2077 return FALSE;
2078
2079 dynobj = htab->etab.dynobj;
2080 if (dynobj == NULL)
2081 abort ();
2082
2083 if (htab->etab.dynamic_sections_created)
2084 {
2085 /* Set the contents of the .interp section to the interpreter. */
2086 if (bfd_link_executable (info) && !info->nointerp)
2087 {
2088 sec = bfd_get_linker_section (dynobj, ".interp");
2089 if (sec == NULL)
2090 abort ();
2091 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2092 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2093 }
2094
2095 /* Force millicode symbols local. */
2096 elf_link_hash_traverse (&htab->etab,
2097 clobber_millicode_symbols,
2098 info);
2099 }
2100
2101 /* Set up .got and .plt offsets for local syms, and space for local
2102 dynamic relocs. */
2103 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2104 {
2105 bfd_signed_vma *local_got;
2106 bfd_signed_vma *end_local_got;
2107 bfd_signed_vma *local_plt;
2108 bfd_signed_vma *end_local_plt;
2109 bfd_size_type locsymcount;
2110 Elf_Internal_Shdr *symtab_hdr;
2111 asection *srel;
2112 char *local_tls_type;
2113
2114 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2115 continue;
2116
2117 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2118 {
2119 struct elf32_hppa_dyn_reloc_entry *hdh_p;
2120
2121 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2122 elf_section_data (sec)->local_dynrel);
2123 hdh_p != NULL;
2124 hdh_p = hdh_p->hdh_next)
2125 {
2126 if (!bfd_is_abs_section (hdh_p->sec)
2127 && bfd_is_abs_section (hdh_p->sec->output_section))
2128 {
2129 /* Input section has been discarded, either because
2130 it is a copy of a linkonce section or due to
2131 linker script /DISCARD/, so we'll be discarding
2132 the relocs too. */
2133 }
2134 else if (hdh_p->count != 0)
2135 {
2136 srel = elf_section_data (hdh_p->sec)->sreloc;
2137 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2138 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2139 info->flags |= DF_TEXTREL;
2140 }
2141 }
2142 }
2143
2144 local_got = elf_local_got_refcounts (ibfd);
2145 if (!local_got)
2146 continue;
2147
2148 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2149 locsymcount = symtab_hdr->sh_info;
2150 end_local_got = local_got + locsymcount;
2151 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2152 sec = htab->etab.sgot;
2153 srel = htab->etab.srelgot;
2154 for (; local_got < end_local_got; ++local_got)
2155 {
2156 if (*local_got > 0)
2157 {
2158 *local_got = sec->size;
2159 sec->size += GOT_ENTRY_SIZE;
2160 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2161 sec->size += 2 * GOT_ENTRY_SIZE;
2162 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2163 sec->size += GOT_ENTRY_SIZE;
2164 if (bfd_link_pic (info))
2165 {
2166 srel->size += sizeof (Elf32_External_Rela);
2167 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2168 srel->size += 2 * sizeof (Elf32_External_Rela);
2169 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2170 srel->size += sizeof (Elf32_External_Rela);
2171 }
2172 }
2173 else
2174 *local_got = (bfd_vma) -1;
2175
2176 ++local_tls_type;
2177 }
2178
2179 local_plt = end_local_got;
2180 end_local_plt = local_plt + locsymcount;
2181 if (! htab->etab.dynamic_sections_created)
2182 {
2183 /* Won't be used, but be safe. */
2184 for (; local_plt < end_local_plt; ++local_plt)
2185 *local_plt = (bfd_vma) -1;
2186 }
2187 else
2188 {
2189 sec = htab->etab.splt;
2190 srel = htab->etab.srelplt;
2191 for (; local_plt < end_local_plt; ++local_plt)
2192 {
2193 if (*local_plt > 0)
2194 {
2195 *local_plt = sec->size;
2196 sec->size += PLT_ENTRY_SIZE;
2197 if (bfd_link_pic (info))
2198 srel->size += sizeof (Elf32_External_Rela);
2199 }
2200 else
2201 *local_plt = (bfd_vma) -1;
2202 }
2203 }
2204 }
2205
2206 if (htab->tls_ldm_got.refcount > 0)
2207 {
2208 /* Allocate 2 got entries and 1 dynamic reloc for
2209 R_PARISC_TLS_DTPMOD32 relocs. */
2210 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2211 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2212 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2213 }
2214 else
2215 htab->tls_ldm_got.offset = -1;
2216
2217 /* Do all the .plt entries without relocs first. The dynamic linker
2218 uses the last .plt reloc to find the end of the .plt (and hence
2219 the start of the .got) for lazy linking. */
2220 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2221
2222 /* Allocate global sym .plt and .got entries, and space for global
2223 sym dynamic relocs. */
2224 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2225
2226 /* The check_relocs and adjust_dynamic_symbol entry points have
2227 determined the sizes of the various dynamic sections. Allocate
2228 memory for them. */
2229 relocs = FALSE;
2230 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2231 {
2232 if ((sec->flags & SEC_LINKER_CREATED) == 0)
2233 continue;
2234
2235 if (sec == htab->etab.splt)
2236 {
2237 if (htab->need_plt_stub)
2238 {
2239 /* Make space for the plt stub at the end of the .plt
2240 section. We want this stub right at the end, up
2241 against the .got section. */
2242 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
2243 int pltalign = bfd_section_alignment (dynobj, sec);
2244 bfd_size_type mask;
2245
2246 if (gotalign > pltalign)
2247 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2248 mask = ((bfd_size_type) 1 << gotalign) - 1;
2249 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2250 }
2251 }
2252 else if (sec == htab->etab.sgot
2253 || sec == htab->etab.sdynbss
2254 || sec == htab->etab.sdynrelro)
2255 ;
2256 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2257 {
2258 if (sec->size != 0)
2259 {
2260 /* Remember whether there are any reloc sections other
2261 than .rela.plt. */
2262 if (sec != htab->etab.srelplt)
2263 relocs = TRUE;
2264
2265 /* We use the reloc_count field as a counter if we need
2266 to copy relocs into the output file. */
2267 sec->reloc_count = 0;
2268 }
2269 }
2270 else
2271 {
2272 /* It's not one of our sections, so don't allocate space. */
2273 continue;
2274 }
2275
2276 if (sec->size == 0)
2277 {
2278 /* If we don't need this section, strip it from the
2279 output file. This is mostly to handle .rela.bss and
2280 .rela.plt. We must create both sections in
2281 create_dynamic_sections, because they must be created
2282 before the linker maps input sections to output
2283 sections. The linker does that before
2284 adjust_dynamic_symbol is called, and it is that
2285 function which decides whether anything needs to go
2286 into these sections. */
2287 sec->flags |= SEC_EXCLUDE;
2288 continue;
2289 }
2290
2291 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2292 continue;
2293
2294 /* Allocate memory for the section contents. Zero it, because
2295 we may not fill in all the reloc sections. */
2296 sec->contents = bfd_zalloc (dynobj, sec->size);
2297 if (sec->contents == NULL)
2298 return FALSE;
2299 }
2300
2301 if (htab->etab.dynamic_sections_created)
2302 {
2303 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2304 actually has nothing to do with the PLT, it is how we
2305 communicate the LTP value of a load module to the dynamic
2306 linker. */
2307 #define add_dynamic_entry(TAG, VAL) \
2308 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2309
2310 if (!add_dynamic_entry (DT_PLTGOT, 0))
2311 return FALSE;
2312
2313 /* Add some entries to the .dynamic section. We fill in the
2314 values later, in elf32_hppa_finish_dynamic_sections, but we
2315 must add the entries now so that we get the correct size for
2316 the .dynamic section. The DT_DEBUG entry is filled in by the
2317 dynamic linker and used by the debugger. */
2318 if (bfd_link_executable (info))
2319 {
2320 if (!add_dynamic_entry (DT_DEBUG, 0))
2321 return FALSE;
2322 }
2323
2324 if (htab->etab.srelplt->size != 0)
2325 {
2326 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2327 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2328 || !add_dynamic_entry (DT_JMPREL, 0))
2329 return FALSE;
2330 }
2331
2332 if (relocs)
2333 {
2334 if (!add_dynamic_entry (DT_RELA, 0)
2335 || !add_dynamic_entry (DT_RELASZ, 0)
2336 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2337 return FALSE;
2338
2339 /* If any dynamic relocs apply to a read-only section,
2340 then we need a DT_TEXTREL entry. */
2341 if ((info->flags & DF_TEXTREL) == 0)
2342 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
2343
2344 if ((info->flags & DF_TEXTREL) != 0)
2345 {
2346 if (!add_dynamic_entry (DT_TEXTREL, 0))
2347 return FALSE;
2348 }
2349 }
2350 }
2351 #undef add_dynamic_entry
2352
2353 return TRUE;
2354 }
2355
2356 /* External entry points for sizing and building linker stubs. */
2357
2358 /* Set up various things so that we can make a list of input sections
2359 for each output section included in the link. Returns -1 on error,
2360 0 when no stubs will be needed, and 1 on success. */
2361
2362 int
2363 elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2364 {
2365 bfd *input_bfd;
2366 unsigned int bfd_count;
2367 unsigned int top_id, top_index;
2368 asection *section;
2369 asection **input_list, **list;
2370 bfd_size_type amt;
2371 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2372
2373 if (htab == NULL)
2374 return -1;
2375
2376 /* Count the number of input BFDs and find the top input section id. */
2377 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2378 input_bfd != NULL;
2379 input_bfd = input_bfd->link.next)
2380 {
2381 bfd_count += 1;
2382 for (section = input_bfd->sections;
2383 section != NULL;
2384 section = section->next)
2385 {
2386 if (top_id < section->id)
2387 top_id = section->id;
2388 }
2389 }
2390 htab->bfd_count = bfd_count;
2391
2392 amt = sizeof (struct map_stub) * (top_id + 1);
2393 htab->stub_group = bfd_zmalloc (amt);
2394 if (htab->stub_group == NULL)
2395 return -1;
2396
2397 /* We can't use output_bfd->section_count here to find the top output
2398 section index as some sections may have been removed, and
2399 strip_excluded_output_sections doesn't renumber the indices. */
2400 for (section = output_bfd->sections, top_index = 0;
2401 section != NULL;
2402 section = section->next)
2403 {
2404 if (top_index < section->index)
2405 top_index = section->index;
2406 }
2407
2408 htab->top_index = top_index;
2409 amt = sizeof (asection *) * (top_index + 1);
2410 input_list = bfd_malloc (amt);
2411 htab->input_list = input_list;
2412 if (input_list == NULL)
2413 return -1;
2414
2415 /* For sections we aren't interested in, mark their entries with a
2416 value we can check later. */
2417 list = input_list + top_index;
2418 do
2419 *list = bfd_abs_section_ptr;
2420 while (list-- != input_list);
2421
2422 for (section = output_bfd->sections;
2423 section != NULL;
2424 section = section->next)
2425 {
2426 if ((section->flags & SEC_CODE) != 0)
2427 input_list[section->index] = NULL;
2428 }
2429
2430 return 1;
2431 }
2432
2433 /* The linker repeatedly calls this function for each input section,
2434 in the order that input sections are linked into output sections.
2435 Build lists of input sections to determine groupings between which
2436 we may insert linker stubs. */
2437
2438 void
2439 elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2440 {
2441 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2442
2443 if (htab == NULL)
2444 return;
2445
2446 if (isec->output_section->index <= htab->top_index)
2447 {
2448 asection **list = htab->input_list + isec->output_section->index;
2449 if (*list != bfd_abs_section_ptr)
2450 {
2451 /* Steal the link_sec pointer for our list. */
2452 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2453 /* This happens to make the list in reverse order,
2454 which is what we want. */
2455 PREV_SEC (isec) = *list;
2456 *list = isec;
2457 }
2458 }
2459 }
2460
2461 /* See whether we can group stub sections together. Grouping stub
2462 sections may result in fewer stubs. More importantly, we need to
2463 put all .init* and .fini* stubs at the beginning of the .init or
2464 .fini output sections respectively, because glibc splits the
2465 _init and _fini functions into multiple parts. Putting a stub in
2466 the middle of a function is not a good idea. */
2467
2468 static void
2469 group_sections (struct elf32_hppa_link_hash_table *htab,
2470 bfd_size_type stub_group_size,
2471 bfd_boolean stubs_always_before_branch)
2472 {
2473 asection **list = htab->input_list + htab->top_index;
2474 do
2475 {
2476 asection *tail = *list;
2477 if (tail == bfd_abs_section_ptr)
2478 continue;
2479 while (tail != NULL)
2480 {
2481 asection *curr;
2482 asection *prev;
2483 bfd_size_type total;
2484 bfd_boolean big_sec;
2485
2486 curr = tail;
2487 total = tail->size;
2488 big_sec = total >= stub_group_size;
2489
2490 while ((prev = PREV_SEC (curr)) != NULL
2491 && ((total += curr->output_offset - prev->output_offset)
2492 < stub_group_size))
2493 curr = prev;
2494
2495 /* OK, the size from the start of CURR to the end is less
2496 than 240000 bytes and thus can be handled by one stub
2497 section. (or the tail section is itself larger than
2498 240000 bytes, in which case we may be toast.)
2499 We should really be keeping track of the total size of
2500 stubs added here, as stubs contribute to the final output
2501 section size. That's a little tricky, and this way will
2502 only break if stubs added total more than 22144 bytes, or
2503 2768 long branch stubs. It seems unlikely for more than
2504 2768 different functions to be called, especially from
2505 code only 240000 bytes long. This limit used to be
2506 250000, but c++ code tends to generate lots of little
2507 functions, and sometimes violated the assumption. */
2508 do
2509 {
2510 prev = PREV_SEC (tail);
2511 /* Set up this stub group. */
2512 htab->stub_group[tail->id].link_sec = curr;
2513 }
2514 while (tail != curr && (tail = prev) != NULL);
2515
2516 /* But wait, there's more! Input sections up to 240000
2517 bytes before the stub section can be handled by it too.
2518 Don't do this if we have a really large section after the
2519 stubs, as adding more stubs increases the chance that
2520 branches may not reach into the stub section. */
2521 if (!stubs_always_before_branch && !big_sec)
2522 {
2523 total = 0;
2524 while (prev != NULL
2525 && ((total += tail->output_offset - prev->output_offset)
2526 < stub_group_size))
2527 {
2528 tail = prev;
2529 prev = PREV_SEC (tail);
2530 htab->stub_group[tail->id].link_sec = curr;
2531 }
2532 }
2533 tail = prev;
2534 }
2535 }
2536 while (list-- != htab->input_list);
2537 free (htab->input_list);
2538 #undef PREV_SEC
2539 }
2540
2541 /* Read in all local syms for all input bfds, and create hash entries
2542 for export stubs if we are building a multi-subspace shared lib.
2543 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2544
2545 static int
2546 get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2547 {
2548 unsigned int bfd_indx;
2549 Elf_Internal_Sym *local_syms, **all_local_syms;
2550 int stub_changed = 0;
2551 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2552
2553 if (htab == NULL)
2554 return -1;
2555
2556 /* We want to read in symbol extension records only once. To do this
2557 we need to read in the local symbols in parallel and save them for
2558 later use; so hold pointers to the local symbols in an array. */
2559 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2560 all_local_syms = bfd_zmalloc (amt);
2561 htab->all_local_syms = all_local_syms;
2562 if (all_local_syms == NULL)
2563 return -1;
2564
2565 /* Walk over all the input BFDs, swapping in local symbols.
2566 If we are creating a shared library, create hash entries for the
2567 export stubs. */
2568 for (bfd_indx = 0;
2569 input_bfd != NULL;
2570 input_bfd = input_bfd->link.next, bfd_indx++)
2571 {
2572 Elf_Internal_Shdr *symtab_hdr;
2573
2574 /* We'll need the symbol table in a second. */
2575 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2576 if (symtab_hdr->sh_info == 0)
2577 continue;
2578
2579 /* We need an array of the local symbols attached to the input bfd. */
2580 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2581 if (local_syms == NULL)
2582 {
2583 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2584 symtab_hdr->sh_info, 0,
2585 NULL, NULL, NULL);
2586 /* Cache them for elf_link_input_bfd. */
2587 symtab_hdr->contents = (unsigned char *) local_syms;
2588 }
2589 if (local_syms == NULL)
2590 return -1;
2591
2592 all_local_syms[bfd_indx] = local_syms;
2593
2594 if (bfd_link_pic (info) && htab->multi_subspace)
2595 {
2596 struct elf_link_hash_entry **eh_syms;
2597 struct elf_link_hash_entry **eh_symend;
2598 unsigned int symcount;
2599
2600 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2601 - symtab_hdr->sh_info);
2602 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2603 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2604
2605 /* Look through the global syms for functions; We need to
2606 build export stubs for all globally visible functions. */
2607 for (; eh_syms < eh_symend; eh_syms++)
2608 {
2609 struct elf32_hppa_link_hash_entry *hh;
2610
2611 hh = hppa_elf_hash_entry (*eh_syms);
2612
2613 while (hh->eh.root.type == bfd_link_hash_indirect
2614 || hh->eh.root.type == bfd_link_hash_warning)
2615 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2616
2617 /* At this point in the link, undefined syms have been
2618 resolved, so we need to check that the symbol was
2619 defined in this BFD. */
2620 if ((hh->eh.root.type == bfd_link_hash_defined
2621 || hh->eh.root.type == bfd_link_hash_defweak)
2622 && hh->eh.type == STT_FUNC
2623 && hh->eh.root.u.def.section->output_section != NULL
2624 && (hh->eh.root.u.def.section->output_section->owner
2625 == output_bfd)
2626 && hh->eh.root.u.def.section->owner == input_bfd
2627 && hh->eh.def_regular
2628 && !hh->eh.forced_local
2629 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2630 {
2631 asection *sec;
2632 const char *stub_name;
2633 struct elf32_hppa_stub_hash_entry *hsh;
2634
2635 sec = hh->eh.root.u.def.section;
2636 stub_name = hh_name (hh);
2637 hsh = hppa_stub_hash_lookup (&htab->bstab,
2638 stub_name,
2639 FALSE, FALSE);
2640 if (hsh == NULL)
2641 {
2642 hsh = hppa_add_stub (stub_name, sec, htab);
2643 if (!hsh)
2644 return -1;
2645
2646 hsh->target_value = hh->eh.root.u.def.value;
2647 hsh->target_section = hh->eh.root.u.def.section;
2648 hsh->stub_type = hppa_stub_export;
2649 hsh->hh = hh;
2650 stub_changed = 1;
2651 }
2652 else
2653 {
2654 /* xgettext:c-format */
2655 _bfd_error_handler (_("%B: duplicate export stub %s"),
2656 input_bfd, stub_name);
2657 }
2658 }
2659 }
2660 }
2661 }
2662
2663 return stub_changed;
2664 }
2665
2666 /* Determine and set the size of the stub section for a final link.
2667
2668 The basic idea here is to examine all the relocations looking for
2669 PC-relative calls to a target that is unreachable with a "bl"
2670 instruction. */
2671
2672 bfd_boolean
2673 elf32_hppa_size_stubs
2674 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2675 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2676 asection * (*add_stub_section) (const char *, asection *),
2677 void (*layout_sections_again) (void))
2678 {
2679 bfd_size_type stub_group_size;
2680 bfd_boolean stubs_always_before_branch;
2681 bfd_boolean stub_changed;
2682 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2683
2684 if (htab == NULL)
2685 return FALSE;
2686
2687 /* Stash our params away. */
2688 htab->stub_bfd = stub_bfd;
2689 htab->multi_subspace = multi_subspace;
2690 htab->add_stub_section = add_stub_section;
2691 htab->layout_sections_again = layout_sections_again;
2692 stubs_always_before_branch = group_size < 0;
2693 if (group_size < 0)
2694 stub_group_size = -group_size;
2695 else
2696 stub_group_size = group_size;
2697 if (stub_group_size == 1)
2698 {
2699 /* Default values. */
2700 if (stubs_always_before_branch)
2701 {
2702 stub_group_size = 7680000;
2703 if (htab->has_17bit_branch || htab->multi_subspace)
2704 stub_group_size = 240000;
2705 if (htab->has_12bit_branch)
2706 stub_group_size = 7500;
2707 }
2708 else
2709 {
2710 stub_group_size = 6971392;
2711 if (htab->has_17bit_branch || htab->multi_subspace)
2712 stub_group_size = 217856;
2713 if (htab->has_12bit_branch)
2714 stub_group_size = 6808;
2715 }
2716 }
2717
2718 group_sections (htab, stub_group_size, stubs_always_before_branch);
2719
2720 switch (get_local_syms (output_bfd, info->input_bfds, info))
2721 {
2722 default:
2723 if (htab->all_local_syms)
2724 goto error_ret_free_local;
2725 return FALSE;
2726
2727 case 0:
2728 stub_changed = FALSE;
2729 break;
2730
2731 case 1:
2732 stub_changed = TRUE;
2733 break;
2734 }
2735
2736 while (1)
2737 {
2738 bfd *input_bfd;
2739 unsigned int bfd_indx;
2740 asection *stub_sec;
2741
2742 for (input_bfd = info->input_bfds, bfd_indx = 0;
2743 input_bfd != NULL;
2744 input_bfd = input_bfd->link.next, bfd_indx++)
2745 {
2746 Elf_Internal_Shdr *symtab_hdr;
2747 asection *section;
2748 Elf_Internal_Sym *local_syms;
2749
2750 /* We'll need the symbol table in a second. */
2751 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2752 if (symtab_hdr->sh_info == 0)
2753 continue;
2754
2755 local_syms = htab->all_local_syms[bfd_indx];
2756
2757 /* Walk over each section attached to the input bfd. */
2758 for (section = input_bfd->sections;
2759 section != NULL;
2760 section = section->next)
2761 {
2762 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2763
2764 /* If there aren't any relocs, then there's nothing more
2765 to do. */
2766 if ((section->flags & SEC_RELOC) == 0
2767 || section->reloc_count == 0)
2768 continue;
2769
2770 /* If this section is a link-once section that will be
2771 discarded, then don't create any stubs. */
2772 if (section->output_section == NULL
2773 || section->output_section->owner != output_bfd)
2774 continue;
2775
2776 /* Get the relocs. */
2777 internal_relocs
2778 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2779 info->keep_memory);
2780 if (internal_relocs == NULL)
2781 goto error_ret_free_local;
2782
2783 /* Now examine each relocation. */
2784 irela = internal_relocs;
2785 irelaend = irela + section->reloc_count;
2786 for (; irela < irelaend; irela++)
2787 {
2788 unsigned int r_type, r_indx;
2789 enum elf32_hppa_stub_type stub_type;
2790 struct elf32_hppa_stub_hash_entry *hsh;
2791 asection *sym_sec;
2792 bfd_vma sym_value;
2793 bfd_vma destination;
2794 struct elf32_hppa_link_hash_entry *hh;
2795 char *stub_name;
2796 const asection *id_sec;
2797
2798 r_type = ELF32_R_TYPE (irela->r_info);
2799 r_indx = ELF32_R_SYM (irela->r_info);
2800
2801 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2802 {
2803 bfd_set_error (bfd_error_bad_value);
2804 error_ret_free_internal:
2805 if (elf_section_data (section)->relocs == NULL)
2806 free (internal_relocs);
2807 goto error_ret_free_local;
2808 }
2809
2810 /* Only look for stubs on call instructions. */
2811 if (r_type != (unsigned int) R_PARISC_PCREL12F
2812 && r_type != (unsigned int) R_PARISC_PCREL17F
2813 && r_type != (unsigned int) R_PARISC_PCREL22F)
2814 continue;
2815
2816 /* Now determine the call target, its name, value,
2817 section. */
2818 sym_sec = NULL;
2819 sym_value = 0;
2820 destination = 0;
2821 hh = NULL;
2822 if (r_indx < symtab_hdr->sh_info)
2823 {
2824 /* It's a local symbol. */
2825 Elf_Internal_Sym *sym;
2826 Elf_Internal_Shdr *hdr;
2827 unsigned int shndx;
2828
2829 sym = local_syms + r_indx;
2830 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2831 sym_value = sym->st_value;
2832 shndx = sym->st_shndx;
2833 if (shndx < elf_numsections (input_bfd))
2834 {
2835 hdr = elf_elfsections (input_bfd)[shndx];
2836 sym_sec = hdr->bfd_section;
2837 destination = (sym_value + irela->r_addend
2838 + sym_sec->output_offset
2839 + sym_sec->output_section->vma);
2840 }
2841 }
2842 else
2843 {
2844 /* It's an external symbol. */
2845 int e_indx;
2846
2847 e_indx = r_indx - symtab_hdr->sh_info;
2848 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2849
2850 while (hh->eh.root.type == bfd_link_hash_indirect
2851 || hh->eh.root.type == bfd_link_hash_warning)
2852 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2853
2854 if (hh->eh.root.type == bfd_link_hash_defined
2855 || hh->eh.root.type == bfd_link_hash_defweak)
2856 {
2857 sym_sec = hh->eh.root.u.def.section;
2858 sym_value = hh->eh.root.u.def.value;
2859 if (sym_sec->output_section != NULL)
2860 destination = (sym_value + irela->r_addend
2861 + sym_sec->output_offset
2862 + sym_sec->output_section->vma);
2863 }
2864 else if (hh->eh.root.type == bfd_link_hash_undefweak)
2865 {
2866 if (! bfd_link_pic (info))
2867 continue;
2868 }
2869 else if (hh->eh.root.type == bfd_link_hash_undefined)
2870 {
2871 if (! (info->unresolved_syms_in_objects == RM_IGNORE
2872 && (ELF_ST_VISIBILITY (hh->eh.other)
2873 == STV_DEFAULT)
2874 && hh->eh.type != STT_PARISC_MILLI))
2875 continue;
2876 }
2877 else
2878 {
2879 bfd_set_error (bfd_error_bad_value);
2880 goto error_ret_free_internal;
2881 }
2882 }
2883
2884 /* Determine what (if any) linker stub is needed. */
2885 stub_type = hppa_type_of_stub (section, irela, hh,
2886 destination, info);
2887 if (stub_type == hppa_stub_none)
2888 continue;
2889
2890 /* Support for grouping stub sections. */
2891 id_sec = htab->stub_group[section->id].link_sec;
2892
2893 /* Get the name of this stub. */
2894 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
2895 if (!stub_name)
2896 goto error_ret_free_internal;
2897
2898 hsh = hppa_stub_hash_lookup (&htab->bstab,
2899 stub_name,
2900 FALSE, FALSE);
2901 if (hsh != NULL)
2902 {
2903 /* The proper stub has already been created. */
2904 free (stub_name);
2905 continue;
2906 }
2907
2908 hsh = hppa_add_stub (stub_name, section, htab);
2909 if (hsh == NULL)
2910 {
2911 free (stub_name);
2912 goto error_ret_free_internal;
2913 }
2914
2915 hsh->target_value = sym_value;
2916 hsh->target_section = sym_sec;
2917 hsh->stub_type = stub_type;
2918 if (bfd_link_pic (info))
2919 {
2920 if (stub_type == hppa_stub_import)
2921 hsh->stub_type = hppa_stub_import_shared;
2922 else if (stub_type == hppa_stub_long_branch)
2923 hsh->stub_type = hppa_stub_long_branch_shared;
2924 }
2925 hsh->hh = hh;
2926 stub_changed = TRUE;
2927 }
2928
2929 /* We're done with the internal relocs, free them. */
2930 if (elf_section_data (section)->relocs == NULL)
2931 free (internal_relocs);
2932 }
2933 }
2934
2935 if (!stub_changed)
2936 break;
2937
2938 /* OK, we've added some stubs. Find out the new size of the
2939 stub sections. */
2940 for (stub_sec = htab->stub_bfd->sections;
2941 stub_sec != NULL;
2942 stub_sec = stub_sec->next)
2943 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
2944 stub_sec->size = 0;
2945
2946 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
2947
2948 /* Ask the linker to do its stuff. */
2949 (*htab->layout_sections_again) ();
2950 stub_changed = FALSE;
2951 }
2952
2953 free (htab->all_local_syms);
2954 return TRUE;
2955
2956 error_ret_free_local:
2957 free (htab->all_local_syms);
2958 return FALSE;
2959 }
2960
2961 /* For a final link, this function is called after we have sized the
2962 stubs to provide a value for __gp. */
2963
2964 bfd_boolean
2965 elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
2966 {
2967 struct bfd_link_hash_entry *h;
2968 asection *sec = NULL;
2969 bfd_vma gp_val = 0;
2970
2971 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
2972
2973 if (h != NULL
2974 && (h->type == bfd_link_hash_defined
2975 || h->type == bfd_link_hash_defweak))
2976 {
2977 gp_val = h->u.def.value;
2978 sec = h->u.def.section;
2979 }
2980 else
2981 {
2982 asection *splt = bfd_get_section_by_name (abfd, ".plt");
2983 asection *sgot = bfd_get_section_by_name (abfd, ".got");
2984
2985 /* Choose to point our LTP at, in this order, one of .plt, .got,
2986 or .data, if these sections exist. In the case of choosing
2987 .plt try to make the LTP ideal for addressing anywhere in the
2988 .plt or .got with a 14 bit signed offset. Typically, the end
2989 of the .plt is the start of the .got, so choose .plt + 0x2000
2990 if either the .plt or .got is larger than 0x2000. If both
2991 the .plt and .got are smaller than 0x2000, choose the end of
2992 the .plt section. */
2993 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
2994 ? NULL : splt;
2995 if (sec != NULL)
2996 {
2997 gp_val = sec->size;
2998 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
2999 {
3000 gp_val = 0x2000;
3001 }
3002 }
3003 else
3004 {
3005 sec = sgot;
3006 if (sec != NULL)
3007 {
3008 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3009 {
3010 /* We know we don't have a .plt. If .got is large,
3011 offset our LTP. */
3012 if (sec->size > 0x2000)
3013 gp_val = 0x2000;
3014 }
3015 }
3016 else
3017 {
3018 /* No .plt or .got. Who cares what the LTP is? */
3019 sec = bfd_get_section_by_name (abfd, ".data");
3020 }
3021 }
3022
3023 if (h != NULL)
3024 {
3025 h->type = bfd_link_hash_defined;
3026 h->u.def.value = gp_val;
3027 if (sec != NULL)
3028 h->u.def.section = sec;
3029 else
3030 h->u.def.section = bfd_abs_section_ptr;
3031 }
3032 }
3033
3034 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3035 {
3036 if (sec != NULL && sec->output_section != NULL)
3037 gp_val += sec->output_section->vma + sec->output_offset;
3038
3039 elf_gp (abfd) = gp_val;
3040 }
3041 return TRUE;
3042 }
3043
3044 /* Build all the stubs associated with the current output file. The
3045 stubs are kept in a hash table attached to the main linker hash
3046 table. We also set up the .plt entries for statically linked PIC
3047 functions here. This function is called via hppaelf_finish in the
3048 linker. */
3049
3050 bfd_boolean
3051 elf32_hppa_build_stubs (struct bfd_link_info *info)
3052 {
3053 asection *stub_sec;
3054 struct bfd_hash_table *table;
3055 struct elf32_hppa_link_hash_table *htab;
3056
3057 htab = hppa_link_hash_table (info);
3058 if (htab == NULL)
3059 return FALSE;
3060
3061 for (stub_sec = htab->stub_bfd->sections;
3062 stub_sec != NULL;
3063 stub_sec = stub_sec->next)
3064 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3065 && stub_sec->size != 0)
3066 {
3067 /* Allocate memory to hold the linker stubs. */
3068 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3069 if (stub_sec->contents == NULL)
3070 return FALSE;
3071 stub_sec->size = 0;
3072 }
3073
3074 /* Build the stubs as directed by the stub hash table. */
3075 table = &htab->bstab;
3076 bfd_hash_traverse (table, hppa_build_one_stub, info);
3077
3078 return TRUE;
3079 }
3080
3081 /* Return the base vma address which should be subtracted from the real
3082 address when resolving a dtpoff relocation.
3083 This is PT_TLS segment p_vaddr. */
3084
3085 static bfd_vma
3086 dtpoff_base (struct bfd_link_info *info)
3087 {
3088 /* If tls_sec is NULL, we should have signalled an error already. */
3089 if (elf_hash_table (info)->tls_sec == NULL)
3090 return 0;
3091 return elf_hash_table (info)->tls_sec->vma;
3092 }
3093
3094 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3095
3096 static bfd_vma
3097 tpoff (struct bfd_link_info *info, bfd_vma address)
3098 {
3099 struct elf_link_hash_table *htab = elf_hash_table (info);
3100
3101 /* If tls_sec is NULL, we should have signalled an error already. */
3102 if (htab->tls_sec == NULL)
3103 return 0;
3104 /* hppa TLS ABI is variant I and static TLS block start just after
3105 tcbhead structure which has 2 pointer fields. */
3106 return (address - htab->tls_sec->vma
3107 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3108 }
3109
3110 /* Perform a final link. */
3111
3112 static bfd_boolean
3113 elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3114 {
3115 struct stat buf;
3116
3117 /* Invoke the regular ELF linker to do all the work. */
3118 if (!bfd_elf_final_link (abfd, info))
3119 return FALSE;
3120
3121 /* If we're producing a final executable, sort the contents of the
3122 unwind section. */
3123 if (bfd_link_relocatable (info))
3124 return TRUE;
3125
3126 /* Do not attempt to sort non-regular files. This is here
3127 especially for configure scripts and kernel builds which run
3128 tests with "ld [...] -o /dev/null". */
3129 if (stat (abfd->filename, &buf) != 0
3130 || !S_ISREG(buf.st_mode))
3131 return TRUE;
3132
3133 return elf_hppa_sort_unwind (abfd);
3134 }
3135
3136 /* Record the lowest address for the data and text segments. */
3137
3138 static void
3139 hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3140 {
3141 struct elf32_hppa_link_hash_table *htab;
3142
3143 htab = (struct elf32_hppa_link_hash_table*) data;
3144 if (htab == NULL)
3145 return;
3146
3147 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3148 {
3149 bfd_vma value;
3150 Elf_Internal_Phdr *p;
3151
3152 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3153 BFD_ASSERT (p != NULL);
3154 value = p->p_vaddr;
3155
3156 if ((section->flags & SEC_READONLY) != 0)
3157 {
3158 if (value < htab->text_segment_base)
3159 htab->text_segment_base = value;
3160 }
3161 else
3162 {
3163 if (value < htab->data_segment_base)
3164 htab->data_segment_base = value;
3165 }
3166 }
3167 }
3168
3169 /* Perform a relocation as part of a final link. */
3170
3171 static bfd_reloc_status_type
3172 final_link_relocate (asection *input_section,
3173 bfd_byte *contents,
3174 const Elf_Internal_Rela *rela,
3175 bfd_vma value,
3176 struct elf32_hppa_link_hash_table *htab,
3177 asection *sym_sec,
3178 struct elf32_hppa_link_hash_entry *hh,
3179 struct bfd_link_info *info)
3180 {
3181 int insn;
3182 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3183 unsigned int orig_r_type = r_type;
3184 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3185 int r_format = howto->bitsize;
3186 enum hppa_reloc_field_selector_type_alt r_field;
3187 bfd *input_bfd = input_section->owner;
3188 bfd_vma offset = rela->r_offset;
3189 bfd_vma max_branch_offset = 0;
3190 bfd_byte *hit_data = contents + offset;
3191 bfd_signed_vma addend = rela->r_addend;
3192 bfd_vma location;
3193 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3194 int val;
3195
3196 if (r_type == R_PARISC_NONE)
3197 return bfd_reloc_ok;
3198
3199 insn = bfd_get_32 (input_bfd, hit_data);
3200
3201 /* Find out where we are and where we're going. */
3202 location = (offset +
3203 input_section->output_offset +
3204 input_section->output_section->vma);
3205
3206 /* If we are not building a shared library, convert DLTIND relocs to
3207 DPREL relocs. */
3208 if (!bfd_link_pic (info))
3209 {
3210 switch (r_type)
3211 {
3212 case R_PARISC_DLTIND21L:
3213 case R_PARISC_TLS_GD21L:
3214 case R_PARISC_TLS_LDM21L:
3215 case R_PARISC_TLS_IE21L:
3216 r_type = R_PARISC_DPREL21L;
3217 break;
3218
3219 case R_PARISC_DLTIND14R:
3220 case R_PARISC_TLS_GD14R:
3221 case R_PARISC_TLS_LDM14R:
3222 case R_PARISC_TLS_IE14R:
3223 r_type = R_PARISC_DPREL14R;
3224 break;
3225
3226 case R_PARISC_DLTIND14F:
3227 r_type = R_PARISC_DPREL14F;
3228 break;
3229 }
3230 }
3231
3232 switch (r_type)
3233 {
3234 case R_PARISC_PCREL12F:
3235 case R_PARISC_PCREL17F:
3236 case R_PARISC_PCREL22F:
3237 /* If this call should go via the plt, find the import stub in
3238 the stub hash. */
3239 if (sym_sec == NULL
3240 || sym_sec->output_section == NULL
3241 || (hh != NULL
3242 && hh->eh.plt.offset != (bfd_vma) -1
3243 && hh->eh.dynindx != -1
3244 && !hh->plabel
3245 && (bfd_link_pic (info)
3246 || !hh->eh.def_regular
3247 || hh->eh.root.type == bfd_link_hash_defweak)))
3248 {
3249 hsh = hppa_get_stub_entry (input_section, sym_sec,
3250 hh, rela, htab);
3251 if (hsh != NULL)
3252 {
3253 value = (hsh->stub_offset
3254 + hsh->stub_sec->output_offset
3255 + hsh->stub_sec->output_section->vma);
3256 addend = 0;
3257 }
3258 else if (sym_sec == NULL && hh != NULL
3259 && hh->eh.root.type == bfd_link_hash_undefweak)
3260 {
3261 /* It's OK if undefined weak. Calls to undefined weak
3262 symbols behave as if the "called" function
3263 immediately returns. We can thus call to a weak
3264 function without first checking whether the function
3265 is defined. */
3266 value = location;
3267 addend = 8;
3268 }
3269 else
3270 return bfd_reloc_undefined;
3271 }
3272 /* Fall thru. */
3273
3274 case R_PARISC_PCREL21L:
3275 case R_PARISC_PCREL17C:
3276 case R_PARISC_PCREL17R:
3277 case R_PARISC_PCREL14R:
3278 case R_PARISC_PCREL14F:
3279 case R_PARISC_PCREL32:
3280 /* Make it a pc relative offset. */
3281 value -= location;
3282 addend -= 8;
3283 break;
3284
3285 case R_PARISC_DPREL21L:
3286 case R_PARISC_DPREL14R:
3287 case R_PARISC_DPREL14F:
3288 /* Convert instructions that use the linkage table pointer (r19) to
3289 instructions that use the global data pointer (dp). This is the
3290 most efficient way of using PIC code in an incomplete executable,
3291 but the user must follow the standard runtime conventions for
3292 accessing data for this to work. */
3293 if (orig_r_type != r_type)
3294 {
3295 if (r_type == R_PARISC_DPREL21L)
3296 {
3297 /* GCC sometimes uses a register other than r19 for the
3298 operation, so we must convert any addil instruction
3299 that uses this relocation. */
3300 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3301 insn = ADDIL_DP;
3302 else
3303 /* We must have a ldil instruction. It's too hard to find
3304 and convert the associated add instruction, so issue an
3305 error. */
3306 _bfd_error_handler
3307 /* xgettext:c-format */
3308 (_("%B(%A+%#Lx): %s fixup for insn %#x is not supported in a non-shared link"),
3309 input_bfd,
3310 input_section,
3311 offset,
3312 howto->name,
3313 insn);
3314 }
3315 else if (r_type == R_PARISC_DPREL14F)
3316 {
3317 /* This must be a format 1 load/store. Change the base
3318 register to dp. */
3319 insn = (insn & 0xfc1ffff) | (27 << 21);
3320 }
3321 }
3322
3323 /* For all the DP relative relocations, we need to examine the symbol's
3324 section. If it has no section or if it's a code section, then
3325 "data pointer relative" makes no sense. In that case we don't
3326 adjust the "value", and for 21 bit addil instructions, we change the
3327 source addend register from %dp to %r0. This situation commonly
3328 arises for undefined weak symbols and when a variable's "constness"
3329 is declared differently from the way the variable is defined. For
3330 instance: "extern int foo" with foo defined as "const int foo". */
3331 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3332 {
3333 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3334 == (((int) OP_ADDIL << 26) | (27 << 21)))
3335 {
3336 insn &= ~ (0x1f << 21);
3337 }
3338 /* Now try to make things easy for the dynamic linker. */
3339
3340 break;
3341 }
3342 /* Fall thru. */
3343
3344 case R_PARISC_DLTIND21L:
3345 case R_PARISC_DLTIND14R:
3346 case R_PARISC_DLTIND14F:
3347 case R_PARISC_TLS_GD21L:
3348 case R_PARISC_TLS_LDM21L:
3349 case R_PARISC_TLS_IE21L:
3350 case R_PARISC_TLS_GD14R:
3351 case R_PARISC_TLS_LDM14R:
3352 case R_PARISC_TLS_IE14R:
3353 value -= elf_gp (input_section->output_section->owner);
3354 break;
3355
3356 case R_PARISC_SEGREL32:
3357 if ((sym_sec->flags & SEC_CODE) != 0)
3358 value -= htab->text_segment_base;
3359 else
3360 value -= htab->data_segment_base;
3361 break;
3362
3363 default:
3364 break;
3365 }
3366
3367 switch (r_type)
3368 {
3369 case R_PARISC_DIR32:
3370 case R_PARISC_DIR14F:
3371 case R_PARISC_DIR17F:
3372 case R_PARISC_PCREL17C:
3373 case R_PARISC_PCREL14F:
3374 case R_PARISC_PCREL32:
3375 case R_PARISC_DPREL14F:
3376 case R_PARISC_PLABEL32:
3377 case R_PARISC_DLTIND14F:
3378 case R_PARISC_SEGBASE:
3379 case R_PARISC_SEGREL32:
3380 case R_PARISC_TLS_DTPMOD32:
3381 case R_PARISC_TLS_DTPOFF32:
3382 case R_PARISC_TLS_TPREL32:
3383 r_field = e_fsel;
3384 break;
3385
3386 case R_PARISC_DLTIND21L:
3387 case R_PARISC_PCREL21L:
3388 case R_PARISC_PLABEL21L:
3389 r_field = e_lsel;
3390 break;
3391
3392 case R_PARISC_DIR21L:
3393 case R_PARISC_DPREL21L:
3394 case R_PARISC_TLS_GD21L:
3395 case R_PARISC_TLS_LDM21L:
3396 case R_PARISC_TLS_LDO21L:
3397 case R_PARISC_TLS_IE21L:
3398 case R_PARISC_TLS_LE21L:
3399 r_field = e_lrsel;
3400 break;
3401
3402 case R_PARISC_PCREL17R:
3403 case R_PARISC_PCREL14R:
3404 case R_PARISC_PLABEL14R:
3405 case R_PARISC_DLTIND14R:
3406 r_field = e_rsel;
3407 break;
3408
3409 case R_PARISC_DIR17R:
3410 case R_PARISC_DIR14R:
3411 case R_PARISC_DPREL14R:
3412 case R_PARISC_TLS_GD14R:
3413 case R_PARISC_TLS_LDM14R:
3414 case R_PARISC_TLS_LDO14R:
3415 case R_PARISC_TLS_IE14R:
3416 case R_PARISC_TLS_LE14R:
3417 r_field = e_rrsel;
3418 break;
3419
3420 case R_PARISC_PCREL12F:
3421 case R_PARISC_PCREL17F:
3422 case R_PARISC_PCREL22F:
3423 r_field = e_fsel;
3424
3425 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3426 {
3427 max_branch_offset = (1 << (17-1)) << 2;
3428 }
3429 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3430 {
3431 max_branch_offset = (1 << (12-1)) << 2;
3432 }
3433 else
3434 {
3435 max_branch_offset = (1 << (22-1)) << 2;
3436 }
3437
3438 /* sym_sec is NULL on undefined weak syms or when shared on
3439 undefined syms. We've already checked for a stub for the
3440 shared undefined case. */
3441 if (sym_sec == NULL)
3442 break;
3443
3444 /* If the branch is out of reach, then redirect the
3445 call to the local stub for this function. */
3446 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3447 {
3448 hsh = hppa_get_stub_entry (input_section, sym_sec,
3449 hh, rela, htab);
3450 if (hsh == NULL)
3451 return bfd_reloc_undefined;
3452
3453 /* Munge up the value and addend so that we call the stub
3454 rather than the procedure directly. */
3455 value = (hsh->stub_offset
3456 + hsh->stub_sec->output_offset
3457 + hsh->stub_sec->output_section->vma
3458 - location);
3459 addend = -8;
3460 }
3461 break;
3462
3463 /* Something we don't know how to handle. */
3464 default:
3465 return bfd_reloc_notsupported;
3466 }
3467
3468 /* Make sure we can reach the stub. */
3469 if (max_branch_offset != 0
3470 && value + addend + max_branch_offset >= 2*max_branch_offset)
3471 {
3472 _bfd_error_handler
3473 /* xgettext:c-format */
3474 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
3475 input_bfd,
3476 input_section,
3477 offset,
3478 hsh->bh_root.string);
3479 bfd_set_error (bfd_error_bad_value);
3480 return bfd_reloc_notsupported;
3481 }
3482
3483 val = hppa_field_adjust (value, addend, r_field);
3484
3485 switch (r_type)
3486 {
3487 case R_PARISC_PCREL12F:
3488 case R_PARISC_PCREL17C:
3489 case R_PARISC_PCREL17F:
3490 case R_PARISC_PCREL17R:
3491 case R_PARISC_PCREL22F:
3492 case R_PARISC_DIR17F:
3493 case R_PARISC_DIR17R:
3494 /* This is a branch. Divide the offset by four.
3495 Note that we need to decide whether it's a branch or
3496 otherwise by inspecting the reloc. Inspecting insn won't
3497 work as insn might be from a .word directive. */
3498 val >>= 2;
3499 break;
3500
3501 default:
3502 break;
3503 }
3504
3505 insn = hppa_rebuild_insn (insn, val, r_format);
3506
3507 /* Update the instruction word. */
3508 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3509 return bfd_reloc_ok;
3510 }
3511
3512 /* Relocate an HPPA ELF section. */
3513
3514 static bfd_boolean
3515 elf32_hppa_relocate_section (bfd *output_bfd,
3516 struct bfd_link_info *info,
3517 bfd *input_bfd,
3518 asection *input_section,
3519 bfd_byte *contents,
3520 Elf_Internal_Rela *relocs,
3521 Elf_Internal_Sym *local_syms,
3522 asection **local_sections)
3523 {
3524 bfd_vma *local_got_offsets;
3525 struct elf32_hppa_link_hash_table *htab;
3526 Elf_Internal_Shdr *symtab_hdr;
3527 Elf_Internal_Rela *rela;
3528 Elf_Internal_Rela *relend;
3529
3530 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3531
3532 htab = hppa_link_hash_table (info);
3533 if (htab == NULL)
3534 return FALSE;
3535
3536 local_got_offsets = elf_local_got_offsets (input_bfd);
3537
3538 rela = relocs;
3539 relend = relocs + input_section->reloc_count;
3540 for (; rela < relend; rela++)
3541 {
3542 unsigned int r_type;
3543 reloc_howto_type *howto;
3544 unsigned int r_symndx;
3545 struct elf32_hppa_link_hash_entry *hh;
3546 Elf_Internal_Sym *sym;
3547 asection *sym_sec;
3548 bfd_vma relocation;
3549 bfd_reloc_status_type rstatus;
3550 const char *sym_name;
3551 bfd_boolean plabel;
3552 bfd_boolean warned_undef;
3553 bfd_boolean resolved_to_zero;
3554
3555 r_type = ELF32_R_TYPE (rela->r_info);
3556 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3557 {
3558 bfd_set_error (bfd_error_bad_value);
3559 return FALSE;
3560 }
3561 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3562 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3563 continue;
3564
3565 r_symndx = ELF32_R_SYM (rela->r_info);
3566 hh = NULL;
3567 sym = NULL;
3568 sym_sec = NULL;
3569 warned_undef = FALSE;
3570 if (r_symndx < symtab_hdr->sh_info)
3571 {
3572 /* This is a local symbol, h defaults to NULL. */
3573 sym = local_syms + r_symndx;
3574 sym_sec = local_sections[r_symndx];
3575 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3576 }
3577 else
3578 {
3579 struct elf_link_hash_entry *eh;
3580 bfd_boolean unresolved_reloc, ignored;
3581 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3582
3583 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3584 r_symndx, symtab_hdr, sym_hashes,
3585 eh, sym_sec, relocation,
3586 unresolved_reloc, warned_undef,
3587 ignored);
3588
3589 if (!bfd_link_relocatable (info)
3590 && relocation == 0
3591 && eh->root.type != bfd_link_hash_defined
3592 && eh->root.type != bfd_link_hash_defweak
3593 && eh->root.type != bfd_link_hash_undefweak)
3594 {
3595 if (info->unresolved_syms_in_objects == RM_IGNORE
3596 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3597 && eh->type == STT_PARISC_MILLI)
3598 {
3599 (*info->callbacks->undefined_symbol)
3600 (info, eh_name (eh), input_bfd,
3601 input_section, rela->r_offset, FALSE);
3602 warned_undef = TRUE;
3603 }
3604 }
3605 hh = hppa_elf_hash_entry (eh);
3606 }
3607
3608 if (sym_sec != NULL && discarded_section (sym_sec))
3609 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3610 rela, 1, relend,
3611 elf_hppa_howto_table + r_type, 0,
3612 contents);
3613
3614 if (bfd_link_relocatable (info))
3615 continue;
3616
3617 resolved_to_zero = (hh != NULL
3618 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh));
3619
3620 /* Do any required modifications to the relocation value, and
3621 determine what types of dynamic info we need to output, if
3622 any. */
3623 plabel = 0;
3624 switch (r_type)
3625 {
3626 case R_PARISC_DLTIND14F:
3627 case R_PARISC_DLTIND14R:
3628 case R_PARISC_DLTIND21L:
3629 {
3630 bfd_vma off;
3631 bfd_boolean do_got = 0;
3632
3633 /* Relocation is to the entry for this symbol in the
3634 global offset table. */
3635 if (hh != NULL)
3636 {
3637 bfd_boolean dyn;
3638
3639 off = hh->eh.got.offset;
3640 dyn = htab->etab.dynamic_sections_created;
3641 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3642 bfd_link_pic (info),
3643 &hh->eh))
3644 {
3645 /* If we aren't going to call finish_dynamic_symbol,
3646 then we need to handle initialisation of the .got
3647 entry and create needed relocs here. Since the
3648 offset must always be a multiple of 4, we use the
3649 least significant bit to record whether we have
3650 initialised it already. */
3651 if ((off & 1) != 0)
3652 off &= ~1;
3653 else
3654 {
3655 hh->eh.got.offset |= 1;
3656 do_got = 1;
3657 }
3658 }
3659 }
3660 else
3661 {
3662 /* Local symbol case. */
3663 if (local_got_offsets == NULL)
3664 abort ();
3665
3666 off = local_got_offsets[r_symndx];
3667
3668 /* The offset must always be a multiple of 4. We use
3669 the least significant bit to record whether we have
3670 already generated the necessary reloc. */
3671 if ((off & 1) != 0)
3672 off &= ~1;
3673 else
3674 {
3675 local_got_offsets[r_symndx] |= 1;
3676 do_got = 1;
3677 }
3678 }
3679
3680 if (do_got)
3681 {
3682 if (bfd_link_pic (info))
3683 {
3684 /* Output a dynamic relocation for this GOT entry.
3685 In this case it is relative to the base of the
3686 object because the symbol index is zero. */
3687 Elf_Internal_Rela outrel;
3688 bfd_byte *loc;
3689 asection *sec = htab->etab.srelgot;
3690
3691 outrel.r_offset = (off
3692 + htab->etab.sgot->output_offset
3693 + htab->etab.sgot->output_section->vma);
3694 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3695 outrel.r_addend = relocation;
3696 loc = sec->contents;
3697 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3698 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3699 }
3700 else
3701 bfd_put_32 (output_bfd, relocation,
3702 htab->etab.sgot->contents + off);
3703 }
3704
3705 if (off >= (bfd_vma) -2)
3706 abort ();
3707
3708 /* Add the base of the GOT to the relocation value. */
3709 relocation = (off
3710 + htab->etab.sgot->output_offset
3711 + htab->etab.sgot->output_section->vma);
3712 }
3713 break;
3714
3715 case R_PARISC_SEGREL32:
3716 /* If this is the first SEGREL relocation, then initialize
3717 the segment base values. */
3718 if (htab->text_segment_base == (bfd_vma) -1)
3719 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3720 break;
3721
3722 case R_PARISC_PLABEL14R:
3723 case R_PARISC_PLABEL21L:
3724 case R_PARISC_PLABEL32:
3725 if (htab->etab.dynamic_sections_created)
3726 {
3727 bfd_vma off;
3728 bfd_boolean do_plt = 0;
3729 /* If we have a global symbol with a PLT slot, then
3730 redirect this relocation to it. */
3731 if (hh != NULL)
3732 {
3733 off = hh->eh.plt.offset;
3734 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3735 bfd_link_pic (info),
3736 &hh->eh))
3737 {
3738 /* In a non-shared link, adjust_dynamic_symbols
3739 isn't called for symbols forced local. We
3740 need to write out the plt entry here. */
3741 if ((off & 1) != 0)
3742 off &= ~1;
3743 else
3744 {
3745 hh->eh.plt.offset |= 1;
3746 do_plt = 1;
3747 }
3748 }
3749 }
3750 else
3751 {
3752 bfd_vma *local_plt_offsets;
3753
3754 if (local_got_offsets == NULL)
3755 abort ();
3756
3757 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3758 off = local_plt_offsets[r_symndx];
3759
3760 /* As for the local .got entry case, we use the last
3761 bit to record whether we've already initialised
3762 this local .plt entry. */
3763 if ((off & 1) != 0)
3764 off &= ~1;
3765 else
3766 {
3767 local_plt_offsets[r_symndx] |= 1;
3768 do_plt = 1;
3769 }
3770 }
3771
3772 if (do_plt)
3773 {
3774 if (bfd_link_pic (info))
3775 {
3776 /* Output a dynamic IPLT relocation for this
3777 PLT entry. */
3778 Elf_Internal_Rela outrel;
3779 bfd_byte *loc;
3780 asection *s = htab->etab.srelplt;
3781
3782 outrel.r_offset = (off
3783 + htab->etab.splt->output_offset
3784 + htab->etab.splt->output_section->vma);
3785 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3786 outrel.r_addend = relocation;
3787 loc = s->contents;
3788 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3789 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3790 }
3791 else
3792 {
3793 bfd_put_32 (output_bfd,
3794 relocation,
3795 htab->etab.splt->contents + off);
3796 bfd_put_32 (output_bfd,
3797 elf_gp (htab->etab.splt->output_section->owner),
3798 htab->etab.splt->contents + off + 4);
3799 }
3800 }
3801
3802 if (off >= (bfd_vma) -2)
3803 abort ();
3804
3805 /* PLABELs contain function pointers. Relocation is to
3806 the entry for the function in the .plt. The magic +2
3807 offset signals to $$dyncall that the function pointer
3808 is in the .plt and thus has a gp pointer too.
3809 Exception: Undefined PLABELs should have a value of
3810 zero. */
3811 if (hh == NULL
3812 || (hh->eh.root.type != bfd_link_hash_undefweak
3813 && hh->eh.root.type != bfd_link_hash_undefined))
3814 {
3815 relocation = (off
3816 + htab->etab.splt->output_offset
3817 + htab->etab.splt->output_section->vma
3818 + 2);
3819 }
3820 plabel = 1;
3821 }
3822 /* Fall through. */
3823
3824 case R_PARISC_DIR17F:
3825 case R_PARISC_DIR17R:
3826 case R_PARISC_DIR14F:
3827 case R_PARISC_DIR14R:
3828 case R_PARISC_DIR21L:
3829 case R_PARISC_DPREL14F:
3830 case R_PARISC_DPREL14R:
3831 case R_PARISC_DPREL21L:
3832 case R_PARISC_DIR32:
3833 if ((input_section->flags & SEC_ALLOC) == 0)
3834 break;
3835
3836 /* The reloc types handled here and this conditional
3837 expression must match the code in ..check_relocs and
3838 allocate_dynrelocs. ie. We need exactly the same condition
3839 as in ..check_relocs, with some extra conditions (dynindx
3840 test in this case) to cater for relocs removed by
3841 allocate_dynrelocs. If you squint, the non-shared test
3842 here does indeed match the one in ..check_relocs, the
3843 difference being that here we test DEF_DYNAMIC as well as
3844 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3845 which is why we can't use just that test here.
3846 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3847 there all files have not been loaded. */
3848 if ((bfd_link_pic (info)
3849 && (hh == NULL
3850 || (ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3851 && !resolved_to_zero)
3852 || hh->eh.root.type != bfd_link_hash_undefweak)
3853 && (IS_ABSOLUTE_RELOC (r_type)
3854 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
3855 || (!bfd_link_pic (info)
3856 && hh != NULL
3857 && hh->eh.dynindx != -1
3858 && !hh->eh.non_got_ref
3859 && ((ELIMINATE_COPY_RELOCS
3860 && hh->eh.def_dynamic
3861 && !hh->eh.def_regular)
3862 || hh->eh.root.type == bfd_link_hash_undefweak
3863 || hh->eh.root.type == bfd_link_hash_undefined)))
3864 {
3865 Elf_Internal_Rela outrel;
3866 bfd_boolean skip;
3867 asection *sreloc;
3868 bfd_byte *loc;
3869
3870 /* When generating a shared object, these relocations
3871 are copied into the output file to be resolved at run
3872 time. */
3873
3874 outrel.r_addend = rela->r_addend;
3875 outrel.r_offset =
3876 _bfd_elf_section_offset (output_bfd, info, input_section,
3877 rela->r_offset);
3878 skip = (outrel.r_offset == (bfd_vma) -1
3879 || outrel.r_offset == (bfd_vma) -2);
3880 outrel.r_offset += (input_section->output_offset
3881 + input_section->output_section->vma);
3882
3883 if (skip)
3884 {
3885 memset (&outrel, 0, sizeof (outrel));
3886 }
3887 else if (hh != NULL
3888 && hh->eh.dynindx != -1
3889 && (plabel
3890 || !IS_ABSOLUTE_RELOC (r_type)
3891 || !bfd_link_pic (info)
3892 || !SYMBOLIC_BIND (info, &hh->eh)
3893 || !hh->eh.def_regular))
3894 {
3895 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
3896 }
3897 else /* It's a local symbol, or one marked to become local. */
3898 {
3899 int indx = 0;
3900
3901 /* Add the absolute offset of the symbol. */
3902 outrel.r_addend += relocation;
3903
3904 /* Global plabels need to be processed by the
3905 dynamic linker so that functions have at most one
3906 fptr. For this reason, we need to differentiate
3907 between global and local plabels, which we do by
3908 providing the function symbol for a global plabel
3909 reloc, and no symbol for local plabels. */
3910 if (! plabel
3911 && sym_sec != NULL
3912 && sym_sec->output_section != NULL
3913 && ! bfd_is_abs_section (sym_sec))
3914 {
3915 asection *osec;
3916
3917 osec = sym_sec->output_section;
3918 indx = elf_section_data (osec)->dynindx;
3919 if (indx == 0)
3920 {
3921 osec = htab->etab.text_index_section;
3922 indx = elf_section_data (osec)->dynindx;
3923 }
3924 BFD_ASSERT (indx != 0);
3925
3926 /* We are turning this relocation into one
3927 against a section symbol, so subtract out the
3928 output section's address but not the offset
3929 of the input section in the output section. */
3930 outrel.r_addend -= osec->vma;
3931 }
3932
3933 outrel.r_info = ELF32_R_INFO (indx, r_type);
3934 }
3935 sreloc = elf_section_data (input_section)->sreloc;
3936 if (sreloc == NULL)
3937 abort ();
3938
3939 loc = sreloc->contents;
3940 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3941 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3942 }
3943 break;
3944
3945 case R_PARISC_TLS_LDM21L:
3946 case R_PARISC_TLS_LDM14R:
3947 {
3948 bfd_vma off;
3949
3950 off = htab->tls_ldm_got.offset;
3951 if (off & 1)
3952 off &= ~1;
3953 else
3954 {
3955 Elf_Internal_Rela outrel;
3956 bfd_byte *loc;
3957
3958 outrel.r_offset = (off
3959 + htab->etab.sgot->output_section->vma
3960 + htab->etab.sgot->output_offset);
3961 outrel.r_addend = 0;
3962 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
3963 loc = htab->etab.srelgot->contents;
3964 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3965
3966 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3967 htab->tls_ldm_got.offset |= 1;
3968 }
3969
3970 /* Add the base of the GOT to the relocation value. */
3971 relocation = (off
3972 + htab->etab.sgot->output_offset
3973 + htab->etab.sgot->output_section->vma);
3974
3975 break;
3976 }
3977
3978 case R_PARISC_TLS_LDO21L:
3979 case R_PARISC_TLS_LDO14R:
3980 relocation -= dtpoff_base (info);
3981 break;
3982
3983 case R_PARISC_TLS_GD21L:
3984 case R_PARISC_TLS_GD14R:
3985 case R_PARISC_TLS_IE21L:
3986 case R_PARISC_TLS_IE14R:
3987 {
3988 bfd_vma off;
3989 int indx;
3990 char tls_type;
3991
3992 indx = 0;
3993 if (hh != NULL)
3994 {
3995 bfd_boolean dyn;
3996 dyn = htab->etab.dynamic_sections_created;
3997
3998 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3999 bfd_link_pic (info),
4000 &hh->eh)
4001 && (!bfd_link_pic (info)
4002 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4003 {
4004 indx = hh->eh.dynindx;
4005 }
4006 off = hh->eh.got.offset;
4007 tls_type = hh->tls_type;
4008 }
4009 else
4010 {
4011 off = local_got_offsets[r_symndx];
4012 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4013 }
4014
4015 if (tls_type == GOT_UNKNOWN)
4016 abort ();
4017
4018 if ((off & 1) != 0)
4019 off &= ~1;
4020 else
4021 {
4022 bfd_boolean need_relocs = FALSE;
4023 Elf_Internal_Rela outrel;
4024 bfd_byte *loc = NULL;
4025 int cur_off = off;
4026
4027 /* The GOT entries have not been initialized yet. Do it
4028 now, and emit any relocations. If both an IE GOT and a
4029 GD GOT are necessary, we emit the GD first. */
4030
4031 if ((bfd_link_pic (info) || indx != 0)
4032 && (hh == NULL
4033 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4034 || hh->eh.root.type != bfd_link_hash_undefweak))
4035 {
4036 need_relocs = TRUE;
4037 loc = htab->etab.srelgot->contents;
4038 /* FIXME (CAO): Should this be reloc_count++ ? */
4039 loc += htab->etab.srelgot->reloc_count * sizeof (Elf32_External_Rela);
4040 }
4041
4042 if (tls_type & GOT_TLS_GD)
4043 {
4044 if (need_relocs)
4045 {
4046 outrel.r_offset = (cur_off
4047 + htab->etab.sgot->output_section->vma
4048 + htab->etab.sgot->output_offset);
4049 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4050 outrel.r_addend = 0;
4051 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + cur_off);
4052 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4053 htab->etab.srelgot->reloc_count++;
4054 loc += sizeof (Elf32_External_Rela);
4055
4056 if (indx == 0)
4057 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4058 htab->etab.sgot->contents + cur_off + 4);
4059 else
4060 {
4061 bfd_put_32 (output_bfd, 0,
4062 htab->etab.sgot->contents + cur_off + 4);
4063 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4064 outrel.r_offset += 4;
4065 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4066 htab->etab.srelgot->reloc_count++;
4067 loc += sizeof (Elf32_External_Rela);
4068 }
4069 }
4070 else
4071 {
4072 /* If we are not emitting relocations for a
4073 general dynamic reference, then we must be in a
4074 static link or an executable link with the
4075 symbol binding locally. Mark it as belonging
4076 to module 1, the executable. */
4077 bfd_put_32 (output_bfd, 1,
4078 htab->etab.sgot->contents + cur_off);
4079 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4080 htab->etab.sgot->contents + cur_off + 4);
4081 }
4082
4083
4084 cur_off += 8;
4085 }
4086
4087 if (tls_type & GOT_TLS_IE)
4088 {
4089 if (need_relocs)
4090 {
4091 outrel.r_offset = (cur_off
4092 + htab->etab.sgot->output_section->vma
4093 + htab->etab.sgot->output_offset);
4094 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4095
4096 if (indx == 0)
4097 outrel.r_addend = relocation - dtpoff_base (info);
4098 else
4099 outrel.r_addend = 0;
4100
4101 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4102 htab->etab.srelgot->reloc_count++;
4103 loc += sizeof (Elf32_External_Rela);
4104 }
4105 else
4106 bfd_put_32 (output_bfd, tpoff (info, relocation),
4107 htab->etab.sgot->contents + cur_off);
4108
4109 cur_off += 4;
4110 }
4111
4112 if (hh != NULL)
4113 hh->eh.got.offset |= 1;
4114 else
4115 local_got_offsets[r_symndx] |= 1;
4116 }
4117
4118 if ((tls_type & GOT_TLS_GD)
4119 && r_type != R_PARISC_TLS_GD21L
4120 && r_type != R_PARISC_TLS_GD14R)
4121 off += 2 * GOT_ENTRY_SIZE;
4122
4123 /* Add the base of the GOT to the relocation value. */
4124 relocation = (off
4125 + htab->etab.sgot->output_offset
4126 + htab->etab.sgot->output_section->vma);
4127
4128 break;
4129 }
4130
4131 case R_PARISC_TLS_LE21L:
4132 case R_PARISC_TLS_LE14R:
4133 {
4134 relocation = tpoff (info, relocation);
4135 break;
4136 }
4137 break;
4138
4139 default:
4140 break;
4141 }
4142
4143 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4144 htab, sym_sec, hh, info);
4145
4146 if (rstatus == bfd_reloc_ok)
4147 continue;
4148
4149 if (hh != NULL)
4150 sym_name = hh_name (hh);
4151 else
4152 {
4153 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4154 symtab_hdr->sh_link,
4155 sym->st_name);
4156 if (sym_name == NULL)
4157 return FALSE;
4158 if (*sym_name == '\0')
4159 sym_name = bfd_section_name (input_bfd, sym_sec);
4160 }
4161
4162 howto = elf_hppa_howto_table + r_type;
4163
4164 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4165 {
4166 if (rstatus == bfd_reloc_notsupported || !warned_undef)
4167 {
4168 _bfd_error_handler
4169 /* xgettext:c-format */
4170 (_("%B(%A+%#Lx): cannot handle %s for %s"),
4171 input_bfd,
4172 input_section,
4173 rela->r_offset,
4174 howto->name,
4175 sym_name);
4176 bfd_set_error (bfd_error_bad_value);
4177 return FALSE;
4178 }
4179 }
4180 else
4181 (*info->callbacks->reloc_overflow)
4182 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4183 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
4184 }
4185
4186 return TRUE;
4187 }
4188
4189 /* Finish up dynamic symbol handling. We set the contents of various
4190 dynamic sections here. */
4191
4192 static bfd_boolean
4193 elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4194 struct bfd_link_info *info,
4195 struct elf_link_hash_entry *eh,
4196 Elf_Internal_Sym *sym)
4197 {
4198 struct elf32_hppa_link_hash_table *htab;
4199 Elf_Internal_Rela rela;
4200 bfd_byte *loc;
4201
4202 htab = hppa_link_hash_table (info);
4203 if (htab == NULL)
4204 return FALSE;
4205
4206 if (eh->plt.offset != (bfd_vma) -1)
4207 {
4208 bfd_vma value;
4209
4210 if (eh->plt.offset & 1)
4211 abort ();
4212
4213 /* This symbol has an entry in the procedure linkage table. Set
4214 it up.
4215
4216 The format of a plt entry is
4217 <funcaddr>
4218 <__gp>
4219 */
4220 value = 0;
4221 if (eh->root.type == bfd_link_hash_defined
4222 || eh->root.type == bfd_link_hash_defweak)
4223 {
4224 value = eh->root.u.def.value;
4225 if (eh->root.u.def.section->output_section != NULL)
4226 value += (eh->root.u.def.section->output_offset
4227 + eh->root.u.def.section->output_section->vma);
4228 }
4229
4230 /* Create a dynamic IPLT relocation for this entry. */
4231 rela.r_offset = (eh->plt.offset
4232 + htab->etab.splt->output_offset
4233 + htab->etab.splt->output_section->vma);
4234 if (eh->dynindx != -1)
4235 {
4236 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4237 rela.r_addend = 0;
4238 }
4239 else
4240 {
4241 /* This symbol has been marked to become local, and is
4242 used by a plabel so must be kept in the .plt. */
4243 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4244 rela.r_addend = value;
4245 }
4246
4247 loc = htab->etab.srelplt->contents;
4248 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4249 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
4250
4251 if (!eh->def_regular)
4252 {
4253 /* Mark the symbol as undefined, rather than as defined in
4254 the .plt section. Leave the value alone. */
4255 sym->st_shndx = SHN_UNDEF;
4256 }
4257 }
4258
4259 if (eh->got.offset != (bfd_vma) -1
4260 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4261 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
4262 {
4263 /* This symbol has an entry in the global offset table. Set it
4264 up. */
4265
4266 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4267 + htab->etab.sgot->output_offset
4268 + htab->etab.sgot->output_section->vma);
4269
4270 /* If this is a -Bsymbolic link and the symbol is defined
4271 locally or was forced to be local because of a version file,
4272 we just want to emit a RELATIVE reloc. The entry in the
4273 global offset table will already have been initialized in the
4274 relocate_section function. */
4275 if (bfd_link_pic (info)
4276 && (SYMBOLIC_BIND (info, eh) || eh->dynindx == -1)
4277 && eh->def_regular)
4278 {
4279 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4280 rela.r_addend = (eh->root.u.def.value
4281 + eh->root.u.def.section->output_offset
4282 + eh->root.u.def.section->output_section->vma);
4283 }
4284 else
4285 {
4286 if ((eh->got.offset & 1) != 0)
4287 abort ();
4288
4289 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + (eh->got.offset & ~1));
4290 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4291 rela.r_addend = 0;
4292 }
4293
4294 loc = htab->etab.srelgot->contents;
4295 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4296 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4297 }
4298
4299 if (eh->needs_copy)
4300 {
4301 asection *sec;
4302
4303 /* This symbol needs a copy reloc. Set it up. */
4304
4305 if (! (eh->dynindx != -1
4306 && (eh->root.type == bfd_link_hash_defined
4307 || eh->root.type == bfd_link_hash_defweak)))
4308 abort ();
4309
4310 rela.r_offset = (eh->root.u.def.value
4311 + eh->root.u.def.section->output_offset
4312 + eh->root.u.def.section->output_section->vma);
4313 rela.r_addend = 0;
4314 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4315 if (eh->root.u.def.section == htab->etab.sdynrelro)
4316 sec = htab->etab.sreldynrelro;
4317 else
4318 sec = htab->etab.srelbss;
4319 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4320 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4321 }
4322
4323 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4324 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4325 {
4326 sym->st_shndx = SHN_ABS;
4327 }
4328
4329 return TRUE;
4330 }
4331
4332 /* Used to decide how to sort relocs in an optimal manner for the
4333 dynamic linker, before writing them out. */
4334
4335 static enum elf_reloc_type_class
4336 elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4337 const asection *rel_sec ATTRIBUTE_UNUSED,
4338 const Elf_Internal_Rela *rela)
4339 {
4340 /* Handle TLS relocs first; we don't want them to be marked
4341 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4342 check below. */
4343 switch ((int) ELF32_R_TYPE (rela->r_info))
4344 {
4345 case R_PARISC_TLS_DTPMOD32:
4346 case R_PARISC_TLS_DTPOFF32:
4347 case R_PARISC_TLS_TPREL32:
4348 return reloc_class_normal;
4349 }
4350
4351 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4352 return reloc_class_relative;
4353
4354 switch ((int) ELF32_R_TYPE (rela->r_info))
4355 {
4356 case R_PARISC_IPLT:
4357 return reloc_class_plt;
4358 case R_PARISC_COPY:
4359 return reloc_class_copy;
4360 default:
4361 return reloc_class_normal;
4362 }
4363 }
4364
4365 /* Finish up the dynamic sections. */
4366
4367 static bfd_boolean
4368 elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4369 struct bfd_link_info *info)
4370 {
4371 bfd *dynobj;
4372 struct elf32_hppa_link_hash_table *htab;
4373 asection *sdyn;
4374 asection * sgot;
4375
4376 htab = hppa_link_hash_table (info);
4377 if (htab == NULL)
4378 return FALSE;
4379
4380 dynobj = htab->etab.dynobj;
4381
4382 sgot = htab->etab.sgot;
4383 /* A broken linker script might have discarded the dynamic sections.
4384 Catch this here so that we do not seg-fault later on. */
4385 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4386 return FALSE;
4387
4388 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4389
4390 if (htab->etab.dynamic_sections_created)
4391 {
4392 Elf32_External_Dyn *dyncon, *dynconend;
4393
4394 if (sdyn == NULL)
4395 abort ();
4396
4397 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4398 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4399 for (; dyncon < dynconend; dyncon++)
4400 {
4401 Elf_Internal_Dyn dyn;
4402 asection *s;
4403
4404 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4405
4406 switch (dyn.d_tag)
4407 {
4408 default:
4409 continue;
4410
4411 case DT_PLTGOT:
4412 /* Use PLTGOT to set the GOT register. */
4413 dyn.d_un.d_ptr = elf_gp (output_bfd);
4414 break;
4415
4416 case DT_JMPREL:
4417 s = htab->etab.srelplt;
4418 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4419 break;
4420
4421 case DT_PLTRELSZ:
4422 s = htab->etab.srelplt;
4423 dyn.d_un.d_val = s->size;
4424 break;
4425 }
4426
4427 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4428 }
4429 }
4430
4431 if (sgot != NULL && sgot->size != 0)
4432 {
4433 /* Fill in the first entry in the global offset table.
4434 We use it to point to our dynamic section, if we have one. */
4435 bfd_put_32 (output_bfd,
4436 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4437 sgot->contents);
4438
4439 /* The second entry is reserved for use by the dynamic linker. */
4440 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4441
4442 /* Set .got entry size. */
4443 elf_section_data (sgot->output_section)
4444 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4445 }
4446
4447 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
4448 {
4449 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4450 plt stubs and as such the section does not hold a table of fixed-size
4451 entries. */
4452 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
4453
4454 if (htab->need_plt_stub)
4455 {
4456 /* Set up the .plt stub. */
4457 memcpy (htab->etab.splt->contents
4458 + htab->etab.splt->size - sizeof (plt_stub),
4459 plt_stub, sizeof (plt_stub));
4460
4461 if ((htab->etab.splt->output_offset
4462 + htab->etab.splt->output_section->vma
4463 + htab->etab.splt->size)
4464 != (sgot->output_offset
4465 + sgot->output_section->vma))
4466 {
4467 _bfd_error_handler
4468 (_(".got section not immediately after .plt section"));
4469 return FALSE;
4470 }
4471 }
4472 }
4473
4474 return TRUE;
4475 }
4476
4477 /* Called when writing out an object file to decide the type of a
4478 symbol. */
4479 static int
4480 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4481 {
4482 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4483 return STT_PARISC_MILLI;
4484 else
4485 return type;
4486 }
4487
4488 /* Misc BFD support code. */
4489 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4490 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4491 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4492 #define elf_info_to_howto elf_hppa_info_to_howto
4493 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4494
4495 /* Stuff for the BFD linker. */
4496 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4497 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4498 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4499 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4500 #define elf_backend_check_relocs elf32_hppa_check_relocs
4501 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4502 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4503 #define elf_backend_fake_sections elf_hppa_fake_sections
4504 #define elf_backend_relocate_section elf32_hppa_relocate_section
4505 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4506 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4507 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4508 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4509 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4510 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4511 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4512 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4513 #define elf_backend_object_p elf32_hppa_object_p
4514 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4515 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4516 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4517 #define elf_backend_action_discarded elf_hppa_action_discarded
4518
4519 #define elf_backend_can_gc_sections 1
4520 #define elf_backend_can_refcount 1
4521 #define elf_backend_plt_alignment 2
4522 #define elf_backend_want_got_plt 0
4523 #define elf_backend_plt_readonly 0
4524 #define elf_backend_want_plt_sym 0
4525 #define elf_backend_got_header_size 8
4526 #define elf_backend_want_dynrelro 1
4527 #define elf_backend_rela_normal 1
4528 #define elf_backend_dtrel_excludes_plt 1
4529 #define elf_backend_no_page_alias 1
4530
4531 #define TARGET_BIG_SYM hppa_elf32_vec
4532 #define TARGET_BIG_NAME "elf32-hppa"
4533 #define ELF_ARCH bfd_arch_hppa
4534 #define ELF_TARGET_ID HPPA32_ELF_DATA
4535 #define ELF_MACHINE_CODE EM_PARISC
4536 #define ELF_MAXPAGESIZE 0x1000
4537 #define ELF_OSABI ELFOSABI_HPUX
4538 #define elf32_bed elf32_hppa_hpux_bed
4539
4540 #include "elf32-target.h"
4541
4542 #undef TARGET_BIG_SYM
4543 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4544 #undef TARGET_BIG_NAME
4545 #define TARGET_BIG_NAME "elf32-hppa-linux"
4546 #undef ELF_OSABI
4547 #define ELF_OSABI ELFOSABI_GNU
4548 #undef elf32_bed
4549 #define elf32_bed elf32_hppa_linux_bed
4550
4551 #include "elf32-target.h"
4552
4553 #undef TARGET_BIG_SYM
4554 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4555 #undef TARGET_BIG_NAME
4556 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4557 #undef ELF_OSABI
4558 #define ELF_OSABI ELFOSABI_NETBSD
4559 #undef elf32_bed
4560 #define elf32_bed elf32_hppa_netbsd_bed
4561
4562 #include "elf32-target.h"