elf32-hppa.c revision 1.12 1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990-2018 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 (at) linuxcare.com.au>
9 Naming cleanup by Carlos O'Donell <carlos (at) systemhalted.org>
10 TLS support written by Randolph Chung <tausq (at) 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 Always remember to use GNU Coding Style. */
136
137 #define PLT_ENTRY_SIZE 8
138 #define GOT_ENTRY_SIZE 4
139 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
140
141 static const bfd_byte plt_stub[] =
142 {
143 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
144 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
145 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
146 #define PLT_STUB_ENTRY (3*4)
147 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
148 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
149 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
150 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
151 };
152
153 /* Section name for stubs is the associated section name plus this
154 string. */
155 #define STUB_SUFFIX ".stub"
156
157 /* We don't need to copy certain PC- or GP-relative dynamic relocs
158 into a shared object's dynamic section. All the relocs of the
159 limited class we are interested in, are absolute. */
160 #ifndef RELATIVE_DYNRELOCS
161 #define RELATIVE_DYNRELOCS 0
162 #define IS_ABSOLUTE_RELOC(r_type) 1
163 #define pc_dynrelocs(hh) 0
164 #endif
165
166 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
167 copying dynamic variables from a shared lib into an app's dynbss
168 section, and instead use a dynamic relocation to point into the
169 shared lib. */
170 #define ELIMINATE_COPY_RELOCS 1
171
172 enum elf32_hppa_stub_type
173 {
174 hppa_stub_long_branch,
175 hppa_stub_long_branch_shared,
176 hppa_stub_import,
177 hppa_stub_import_shared,
178 hppa_stub_export,
179 hppa_stub_none
180 };
181
182 struct elf32_hppa_stub_hash_entry
183 {
184 /* Base hash table entry structure. */
185 struct bfd_hash_entry bh_root;
186
187 /* The stub section. */
188 asection *stub_sec;
189
190 /* Offset within stub_sec of the beginning of this stub. */
191 bfd_vma stub_offset;
192
193 /* Given the symbol's value and its section we can determine its final
194 value when building the stubs (so the stub knows where to jump. */
195 bfd_vma target_value;
196 asection *target_section;
197
198 enum elf32_hppa_stub_type stub_type;
199
200 /* The symbol table entry, if any, that this was derived from. */
201 struct elf32_hppa_link_hash_entry *hh;
202
203 /* Where this stub is being called from, or, in the case of combined
204 stub sections, the first input section in the group. */
205 asection *id_sec;
206 };
207
208 enum _tls_type
209 {
210 GOT_UNKNOWN = 0,
211 GOT_NORMAL = 1,
212 GOT_TLS_GD = 2,
213 GOT_TLS_LDM = 4,
214 GOT_TLS_IE = 8
215 };
216
217 struct elf32_hppa_link_hash_entry
218 {
219 struct elf_link_hash_entry eh;
220
221 /* A pointer to the most recently used stub hash entry against this
222 symbol. */
223 struct elf32_hppa_stub_hash_entry *hsh_cache;
224
225 /* Used to count relocations for delayed sizing of relocation
226 sections. */
227 struct elf_dyn_relocs *dyn_relocs;
228
229 ENUM_BITFIELD (_tls_type) tls_type : 8;
230
231 /* Set if this symbol is used by a plabel reloc. */
232 unsigned int plabel:1;
233 };
234
235 struct elf32_hppa_link_hash_table
236 {
237 /* The main hash table. */
238 struct elf_link_hash_table etab;
239
240 /* The stub hash table. */
241 struct bfd_hash_table bstab;
242
243 /* Linker stub bfd. */
244 bfd *stub_bfd;
245
246 /* Linker call-backs. */
247 asection * (*add_stub_section) (const char *, asection *);
248 void (*layout_sections_again) (void);
249
250 /* Array to keep track of which stub sections have been created, and
251 information on stub grouping. */
252 struct map_stub
253 {
254 /* This is the section to which stubs in the group will be
255 attached. */
256 asection *link_sec;
257 /* The stub section. */
258 asection *stub_sec;
259 } *stub_group;
260
261 /* Assorted information used by elf32_hppa_size_stubs. */
262 unsigned int bfd_count;
263 unsigned int top_index;
264 asection **input_list;
265 Elf_Internal_Sym **all_local_syms;
266
267 /* Used during a final link to store the base of the text and data
268 segments so that we can perform SEGREL relocations. */
269 bfd_vma text_segment_base;
270 bfd_vma data_segment_base;
271
272 /* Whether we support multiple sub-spaces for shared libs. */
273 unsigned int multi_subspace:1;
274
275 /* Flags set when various size branches are detected. Used to
276 select suitable defaults for the stub group size. */
277 unsigned int has_12bit_branch:1;
278 unsigned int has_17bit_branch:1;
279 unsigned int has_22bit_branch:1;
280
281 /* Set if we need a .plt stub to support lazy dynamic linking. */
282 unsigned int need_plt_stub:1;
283
284 /* Small local sym cache. */
285 struct sym_cache sym_cache;
286
287 /* Data for LDM relocations. */
288 union
289 {
290 bfd_signed_vma refcount;
291 bfd_vma offset;
292 } tls_ldm_got;
293 };
294
295 /* Various hash macros and functions. */
296 #define hppa_link_hash_table(p) \
297 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
298 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
299
300 #define hppa_elf_hash_entry(ent) \
301 ((struct elf32_hppa_link_hash_entry *)(ent))
302
303 #define hppa_stub_hash_entry(ent) \
304 ((struct elf32_hppa_stub_hash_entry *)(ent))
305
306 #define hppa_stub_hash_lookup(table, string, create, copy) \
307 ((struct elf32_hppa_stub_hash_entry *) \
308 bfd_hash_lookup ((table), (string), (create), (copy)))
309
310 #define hppa_elf_local_got_tls_type(abfd) \
311 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
312
313 #define hh_name(hh) \
314 (hh ? hh->eh.root.root.string : "<undef>")
315
316 #define eh_name(eh) \
317 (eh ? eh->root.root.string : "<undef>")
318
319 /* Assorted hash table functions. */
320
321 /* Initialize an entry in the stub hash table. */
322
323 static struct bfd_hash_entry *
324 stub_hash_newfunc (struct bfd_hash_entry *entry,
325 struct bfd_hash_table *table,
326 const char *string)
327 {
328 /* Allocate the structure if it has not already been allocated by a
329 subclass. */
330 if (entry == NULL)
331 {
332 entry = bfd_hash_allocate (table,
333 sizeof (struct elf32_hppa_stub_hash_entry));
334 if (entry == NULL)
335 return entry;
336 }
337
338 /* Call the allocation method of the superclass. */
339 entry = bfd_hash_newfunc (entry, table, string);
340 if (entry != NULL)
341 {
342 struct elf32_hppa_stub_hash_entry *hsh;
343
344 /* Initialize the local fields. */
345 hsh = hppa_stub_hash_entry (entry);
346 hsh->stub_sec = NULL;
347 hsh->stub_offset = 0;
348 hsh->target_value = 0;
349 hsh->target_section = NULL;
350 hsh->stub_type = hppa_stub_long_branch;
351 hsh->hh = NULL;
352 hsh->id_sec = NULL;
353 }
354
355 return entry;
356 }
357
358 /* Initialize an entry in the link hash table. */
359
360 static struct bfd_hash_entry *
361 hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
362 struct bfd_hash_table *table,
363 const char *string)
364 {
365 /* Allocate the structure if it has not already been allocated by a
366 subclass. */
367 if (entry == NULL)
368 {
369 entry = bfd_hash_allocate (table,
370 sizeof (struct elf32_hppa_link_hash_entry));
371 if (entry == NULL)
372 return entry;
373 }
374
375 /* Call the allocation method of the superclass. */
376 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
377 if (entry != NULL)
378 {
379 struct elf32_hppa_link_hash_entry *hh;
380
381 /* Initialize the local fields. */
382 hh = hppa_elf_hash_entry (entry);
383 hh->hsh_cache = NULL;
384 hh->dyn_relocs = NULL;
385 hh->plabel = 0;
386 hh->tls_type = GOT_UNKNOWN;
387 }
388
389 return entry;
390 }
391
392 /* Free the derived linker hash table. */
393
394 static void
395 elf32_hppa_link_hash_table_free (bfd *obfd)
396 {
397 struct elf32_hppa_link_hash_table *htab
398 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
399
400 bfd_hash_table_free (&htab->bstab);
401 _bfd_elf_link_hash_table_free (obfd);
402 }
403
404 /* Create the derived linker hash table. The PA ELF port uses the derived
405 hash table to keep information specific to the PA ELF linker (without
406 using static variables). */
407
408 static struct bfd_link_hash_table *
409 elf32_hppa_link_hash_table_create (bfd *abfd)
410 {
411 struct elf32_hppa_link_hash_table *htab;
412 bfd_size_type amt = sizeof (*htab);
413
414 htab = bfd_zmalloc (amt);
415 if (htab == NULL)
416 return NULL;
417
418 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
419 sizeof (struct elf32_hppa_link_hash_entry),
420 HPPA32_ELF_DATA))
421 {
422 free (htab);
423 return NULL;
424 }
425
426 /* Init the stub hash table too. */
427 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
428 sizeof (struct elf32_hppa_stub_hash_entry)))
429 {
430 _bfd_elf_link_hash_table_free (abfd);
431 return NULL;
432 }
433 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
434
435 htab->text_segment_base = (bfd_vma) -1;
436 htab->data_segment_base = (bfd_vma) -1;
437 return &htab->etab.root;
438 }
439
440 /* Initialize the linker stubs BFD so that we can use it for linker
441 created dynamic sections. */
442
443 void
444 elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
445 {
446 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
447
448 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
449 htab->etab.dynobj = abfd;
450 }
451
452 /* Build a name for an entry in the stub hash table. */
453
454 static char *
455 hppa_stub_name (const asection *input_section,
456 const asection *sym_sec,
457 const struct elf32_hppa_link_hash_entry *hh,
458 const Elf_Internal_Rela *rela)
459 {
460 char *stub_name;
461 bfd_size_type len;
462
463 if (hh)
464 {
465 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
466 stub_name = bfd_malloc (len);
467 if (stub_name != NULL)
468 sprintf (stub_name, "%08x_%s+%x",
469 input_section->id & 0xffffffff,
470 hh_name (hh),
471 (int) rela->r_addend & 0xffffffff);
472 }
473 else
474 {
475 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
476 stub_name = bfd_malloc (len);
477 if (stub_name != NULL)
478 sprintf (stub_name, "%08x_%x:%x+%x",
479 input_section->id & 0xffffffff,
480 sym_sec->id & 0xffffffff,
481 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
482 (int) rela->r_addend & 0xffffffff);
483 }
484 return stub_name;
485 }
486
487 /* Look up an entry in the stub hash. Stub entries are cached because
488 creating the stub name takes a bit of time. */
489
490 static struct elf32_hppa_stub_hash_entry *
491 hppa_get_stub_entry (const asection *input_section,
492 const asection *sym_sec,
493 struct elf32_hppa_link_hash_entry *hh,
494 const Elf_Internal_Rela *rela,
495 struct elf32_hppa_link_hash_table *htab)
496 {
497 struct elf32_hppa_stub_hash_entry *hsh_entry;
498 const asection *id_sec;
499
500 /* If this input section is part of a group of sections sharing one
501 stub section, then use the id of the first section in the group.
502 Stub names need to include a section id, as there may well be
503 more than one stub used to reach say, printf, and we need to
504 distinguish between them. */
505 id_sec = htab->stub_group[input_section->id].link_sec;
506 if (id_sec == NULL)
507 return NULL;
508
509 if (hh != NULL && hh->hsh_cache != NULL
510 && hh->hsh_cache->hh == hh
511 && hh->hsh_cache->id_sec == id_sec)
512 {
513 hsh_entry = hh->hsh_cache;
514 }
515 else
516 {
517 char *stub_name;
518
519 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
520 if (stub_name == NULL)
521 return NULL;
522
523 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
524 stub_name, FALSE, FALSE);
525 if (hh != NULL)
526 hh->hsh_cache = hsh_entry;
527
528 free (stub_name);
529 }
530
531 return hsh_entry;
532 }
533
534 /* Add a new stub entry to the stub hash. Not all fields of the new
535 stub entry are initialised. */
536
537 static struct elf32_hppa_stub_hash_entry *
538 hppa_add_stub (const char *stub_name,
539 asection *section,
540 struct elf32_hppa_link_hash_table *htab)
541 {
542 asection *link_sec;
543 asection *stub_sec;
544 struct elf32_hppa_stub_hash_entry *hsh;
545
546 link_sec = htab->stub_group[section->id].link_sec;
547 stub_sec = htab->stub_group[section->id].stub_sec;
548 if (stub_sec == NULL)
549 {
550 stub_sec = htab->stub_group[link_sec->id].stub_sec;
551 if (stub_sec == NULL)
552 {
553 size_t namelen;
554 bfd_size_type len;
555 char *s_name;
556
557 namelen = strlen (link_sec->name);
558 len = namelen + sizeof (STUB_SUFFIX);
559 s_name = bfd_alloc (htab->stub_bfd, len);
560 if (s_name == NULL)
561 return NULL;
562
563 memcpy (s_name, link_sec->name, namelen);
564 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
565 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
566 if (stub_sec == NULL)
567 return NULL;
568 htab->stub_group[link_sec->id].stub_sec = stub_sec;
569 }
570 htab->stub_group[section->id].stub_sec = stub_sec;
571 }
572
573 /* Enter this entry into the linker stub hash table. */
574 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
575 TRUE, FALSE);
576 if (hsh == NULL)
577 {
578 /* xgettext:c-format */
579 _bfd_error_handler (_("%pB: cannot create stub entry %s"),
580 section->owner, stub_name);
581 return NULL;
582 }
583
584 hsh->stub_sec = stub_sec;
585 hsh->stub_offset = 0;
586 hsh->id_sec = link_sec;
587 return hsh;
588 }
589
590 /* Determine the type of stub needed, if any, for a call. */
591
592 static enum elf32_hppa_stub_type
593 hppa_type_of_stub (asection *input_sec,
594 const Elf_Internal_Rela *rela,
595 struct elf32_hppa_link_hash_entry *hh,
596 bfd_vma destination,
597 struct bfd_link_info *info)
598 {
599 bfd_vma location;
600 bfd_vma branch_offset;
601 bfd_vma max_branch_offset;
602 unsigned int r_type;
603
604 if (hh != NULL
605 && hh->eh.plt.offset != (bfd_vma) -1
606 && hh->eh.dynindx != -1
607 && !hh->plabel
608 && (bfd_link_pic (info)
609 || !hh->eh.def_regular
610 || hh->eh.root.type == bfd_link_hash_defweak))
611 {
612 /* We need an import stub. Decide between hppa_stub_import
613 and hppa_stub_import_shared later. */
614 return hppa_stub_import;
615 }
616
617 if (destination == (bfd_vma) -1)
618 return hppa_stub_none;
619
620 /* Determine where the call point is. */
621 location = (input_sec->output_offset
622 + input_sec->output_section->vma
623 + rela->r_offset);
624
625 branch_offset = destination - location - 8;
626 r_type = ELF32_R_TYPE (rela->r_info);
627
628 /* Determine if a long branch stub is needed. parisc branch offsets
629 are relative to the second instruction past the branch, ie. +8
630 bytes on from the branch instruction location. The offset is
631 signed and counts in units of 4 bytes. */
632 if (r_type == (unsigned int) R_PARISC_PCREL17F)
633 max_branch_offset = (1 << (17 - 1)) << 2;
634
635 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
636 max_branch_offset = (1 << (12 - 1)) << 2;
637
638 else /* R_PARISC_PCREL22F. */
639 max_branch_offset = (1 << (22 - 1)) << 2;
640
641 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
642 return hppa_stub_long_branch;
643
644 return hppa_stub_none;
645 }
646
647 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
648 IN_ARG contains the link info pointer. */
649
650 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
651 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
652
653 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
654 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
655 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
656
657 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
658 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
659 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
660 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
661
662 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
663 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
664
665 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
666 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
667 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
668 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
669
670 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
671 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
672 #define NOP 0x08000240 /* nop */
673 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
674 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
675 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
676
677 #ifndef R19_STUBS
678 #define R19_STUBS 1
679 #endif
680
681 #if R19_STUBS
682 #define LDW_R1_DLT LDW_R1_R19
683 #else
684 #define LDW_R1_DLT LDW_R1_DP
685 #endif
686
687 static bfd_boolean
688 hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
689 {
690 struct elf32_hppa_stub_hash_entry *hsh;
691 struct bfd_link_info *info;
692 struct elf32_hppa_link_hash_table *htab;
693 asection *stub_sec;
694 bfd *stub_bfd;
695 bfd_byte *loc;
696 bfd_vma sym_value;
697 bfd_vma insn;
698 bfd_vma off;
699 int val;
700 int size;
701
702 /* Massage our args to the form they really have. */
703 hsh = hppa_stub_hash_entry (bh);
704 info = (struct bfd_link_info *)in_arg;
705
706 htab = hppa_link_hash_table (info);
707 if (htab == NULL)
708 return FALSE;
709
710 stub_sec = hsh->stub_sec;
711
712 /* Make a note of the offset within the stubs for this entry. */
713 hsh->stub_offset = stub_sec->size;
714 loc = stub_sec->contents + hsh->stub_offset;
715
716 stub_bfd = stub_sec->owner;
717
718 switch (hsh->stub_type)
719 {
720 case hppa_stub_long_branch:
721 /* Create the long branch. A long branch is formed with "ldil"
722 loading the upper bits of the target address into a register,
723 then branching with "be" which adds in the lower bits.
724 The "be" has its delay slot nullified. */
725 sym_value = (hsh->target_value
726 + hsh->target_section->output_offset
727 + hsh->target_section->output_section->vma);
728
729 val = hppa_field_adjust (sym_value, 0, e_lrsel);
730 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
731 bfd_put_32 (stub_bfd, insn, loc);
732
733 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
734 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
735 bfd_put_32 (stub_bfd, insn, loc + 4);
736
737 size = 8;
738 break;
739
740 case hppa_stub_long_branch_shared:
741 /* Branches are relative. This is where we are going to. */
742 sym_value = (hsh->target_value
743 + hsh->target_section->output_offset
744 + hsh->target_section->output_section->vma);
745
746 /* And this is where we are coming from, more or less. */
747 sym_value -= (hsh->stub_offset
748 + stub_sec->output_offset
749 + stub_sec->output_section->vma);
750
751 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
752 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
753 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
754 bfd_put_32 (stub_bfd, insn, loc + 4);
755
756 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
757 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
758 bfd_put_32 (stub_bfd, insn, loc + 8);
759 size = 12;
760 break;
761
762 case hppa_stub_import:
763 case hppa_stub_import_shared:
764 off = hsh->hh->eh.plt.offset;
765 if (off >= (bfd_vma) -2)
766 abort ();
767
768 off &= ~ (bfd_vma) 1;
769 sym_value = (off
770 + htab->etab.splt->output_offset
771 + htab->etab.splt->output_section->vma
772 - elf_gp (htab->etab.splt->output_section->owner));
773
774 insn = ADDIL_DP;
775 #if R19_STUBS
776 if (hsh->stub_type == hppa_stub_import_shared)
777 insn = ADDIL_R19;
778 #endif
779 val = hppa_field_adjust (sym_value, 0, e_lrsel),
780 insn = hppa_rebuild_insn ((int) insn, val, 21);
781 bfd_put_32 (stub_bfd, insn, loc);
782
783 /* It is critical to use lrsel/rrsel here because we are using
784 two different offsets (+0 and +4) from sym_value. If we use
785 lsel/rsel then with unfortunate sym_values we will round
786 sym_value+4 up to the next 2k block leading to a mis-match
787 between the lsel and rsel value. */
788 val = hppa_field_adjust (sym_value, 0, e_rrsel);
789 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
790 bfd_put_32 (stub_bfd, insn, loc + 4);
791
792 if (htab->multi_subspace)
793 {
794 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
795 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
796 bfd_put_32 (stub_bfd, insn, loc + 8);
797
798 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
799 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
800 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
801 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
802
803 size = 28;
804 }
805 else
806 {
807 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
808 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
809 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
810 bfd_put_32 (stub_bfd, insn, loc + 12);
811
812 size = 16;
813 }
814
815 break;
816
817 case hppa_stub_export:
818 /* Branches are relative. This is where we are going to. */
819 sym_value = (hsh->target_value
820 + hsh->target_section->output_offset
821 + hsh->target_section->output_section->vma);
822
823 /* And this is where we are coming from. */
824 sym_value -= (hsh->stub_offset
825 + stub_sec->output_offset
826 + stub_sec->output_section->vma);
827
828 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
829 && (!htab->has_22bit_branch
830 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
831 {
832 _bfd_error_handler
833 /* xgettext:c-format */
834 (_("%pB(%pA+%#" PRIx64 "): "
835 "cannot reach %s, recompile with -ffunction-sections"),
836 hsh->target_section->owner,
837 stub_sec,
838 (uint64_t) hsh->stub_offset,
839 hsh->bh_root.string);
840 bfd_set_error (bfd_error_bad_value);
841 return FALSE;
842 }
843
844 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
845 if (!htab->has_22bit_branch)
846 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
847 else
848 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
849 bfd_put_32 (stub_bfd, insn, loc);
850
851 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
852 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
853 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
854 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
855 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
856
857 /* Point the function symbol at the stub. */
858 hsh->hh->eh.root.u.def.section = stub_sec;
859 hsh->hh->eh.root.u.def.value = stub_sec->size;
860
861 size = 24;
862 break;
863
864 default:
865 BFD_FAIL ();
866 return FALSE;
867 }
868
869 stub_sec->size += size;
870 return TRUE;
871 }
872
873 #undef LDIL_R1
874 #undef BE_SR4_R1
875 #undef BL_R1
876 #undef ADDIL_R1
877 #undef DEPI_R1
878 #undef LDW_R1_R21
879 #undef LDW_R1_DLT
880 #undef LDW_R1_R19
881 #undef ADDIL_R19
882 #undef LDW_R1_DP
883 #undef LDSID_R21_R1
884 #undef MTSP_R1
885 #undef BE_SR0_R21
886 #undef STW_RP
887 #undef BV_R0_R21
888 #undef BL_RP
889 #undef NOP
890 #undef LDW_RP
891 #undef LDSID_RP_R1
892 #undef BE_SR0_RP
893
894 /* As above, but don't actually build the stub. Just bump offset so
895 we know stub section sizes. */
896
897 static bfd_boolean
898 hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
899 {
900 struct elf32_hppa_stub_hash_entry *hsh;
901 struct elf32_hppa_link_hash_table *htab;
902 int size;
903
904 /* Massage our args to the form they really have. */
905 hsh = hppa_stub_hash_entry (bh);
906 htab = in_arg;
907
908 if (hsh->stub_type == hppa_stub_long_branch)
909 size = 8;
910 else if (hsh->stub_type == hppa_stub_long_branch_shared)
911 size = 12;
912 else if (hsh->stub_type == hppa_stub_export)
913 size = 24;
914 else /* hppa_stub_import or hppa_stub_import_shared. */
915 {
916 if (htab->multi_subspace)
917 size = 28;
918 else
919 size = 16;
920 }
921
922 hsh->stub_sec->size += size;
923 return TRUE;
924 }
925
926 /* Return nonzero if ABFD represents an HPPA ELF32 file.
927 Additionally we set the default architecture and machine. */
928
929 static bfd_boolean
930 elf32_hppa_object_p (bfd *abfd)
931 {
932 Elf_Internal_Ehdr * i_ehdrp;
933 unsigned int flags;
934
935 i_ehdrp = elf_elfheader (abfd);
936 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
937 {
938 /* GCC on hppa-linux produces binaries with OSABI=GNU,
939 but the kernel produces corefiles with OSABI=SysV. */
940 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
941 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
942 return FALSE;
943 }
944 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
945 {
946 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
947 but the kernel produces corefiles with OSABI=SysV. */
948 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
949 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
950 return FALSE;
951 }
952 else
953 {
954 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
955 return FALSE;
956 }
957
958 flags = i_ehdrp->e_flags;
959 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
960 {
961 case EFA_PARISC_1_0:
962 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
963 case EFA_PARISC_1_1:
964 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
965 case EFA_PARISC_2_0:
966 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
967 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
968 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
969 }
970 return TRUE;
971 }
972
973 /* Create the .plt and .got sections, and set up our hash table
974 short-cuts to various dynamic sections. */
975
976 static bfd_boolean
977 elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
978 {
979 struct elf32_hppa_link_hash_table *htab;
980 struct elf_link_hash_entry *eh;
981
982 /* Don't try to create the .plt and .got twice. */
983 htab = hppa_link_hash_table (info);
984 if (htab == NULL)
985 return FALSE;
986 if (htab->etab.splt != NULL)
987 return TRUE;
988
989 /* Call the generic code to do most of the work. */
990 if (! _bfd_elf_create_dynamic_sections (abfd, info))
991 return FALSE;
992
993 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
994 application, because __canonicalize_funcptr_for_compare needs it. */
995 eh = elf_hash_table (info)->hgot;
996 eh->forced_local = 0;
997 eh->other = STV_DEFAULT;
998 return bfd_elf_link_record_dynamic_symbol (info, eh);
999 }
1000
1001 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1002
1003 static void
1004 elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1005 struct elf_link_hash_entry *eh_dir,
1006 struct elf_link_hash_entry *eh_ind)
1007 {
1008 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1009
1010 hh_dir = hppa_elf_hash_entry (eh_dir);
1011 hh_ind = hppa_elf_hash_entry (eh_ind);
1012
1013 if (hh_ind->dyn_relocs != NULL
1014 && eh_ind->root.type == bfd_link_hash_indirect)
1015 {
1016 if (hh_dir->dyn_relocs != NULL)
1017 {
1018 struct elf_dyn_relocs **hdh_pp;
1019 struct elf_dyn_relocs *hdh_p;
1020
1021 /* Add reloc counts against the indirect sym to the direct sym
1022 list. Merge any entries against the same section. */
1023 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1024 {
1025 struct elf_dyn_relocs *hdh_q;
1026
1027 for (hdh_q = hh_dir->dyn_relocs;
1028 hdh_q != NULL;
1029 hdh_q = hdh_q->next)
1030 if (hdh_q->sec == hdh_p->sec)
1031 {
1032 #if RELATIVE_DYNRELOCS
1033 hdh_q->pc_count += hdh_p->pc_count;
1034 #endif
1035 hdh_q->count += hdh_p->count;
1036 *hdh_pp = hdh_p->next;
1037 break;
1038 }
1039 if (hdh_q == NULL)
1040 hdh_pp = &hdh_p->next;
1041 }
1042 *hdh_pp = hh_dir->dyn_relocs;
1043 }
1044
1045 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1046 hh_ind->dyn_relocs = NULL;
1047 }
1048
1049 if (eh_ind->root.type == bfd_link_hash_indirect)
1050 {
1051 hh_dir->plabel |= hh_ind->plabel;
1052 hh_dir->tls_type |= hh_ind->tls_type;
1053 hh_ind->tls_type = GOT_UNKNOWN;
1054 }
1055
1056 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1057 }
1058
1059 static int
1060 elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1061 int r_type, int is_local ATTRIBUTE_UNUSED)
1062 {
1063 /* For now we don't support linker optimizations. */
1064 return r_type;
1065 }
1066
1067 /* Return a pointer to the local GOT, PLT and TLS reference counts
1068 for ABFD. Returns NULL if the storage allocation fails. */
1069
1070 static bfd_signed_vma *
1071 hppa32_elf_local_refcounts (bfd *abfd)
1072 {
1073 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1074 bfd_signed_vma *local_refcounts;
1075
1076 local_refcounts = elf_local_got_refcounts (abfd);
1077 if (local_refcounts == NULL)
1078 {
1079 bfd_size_type size;
1080
1081 /* Allocate space for local GOT and PLT reference
1082 counts. Done this way to save polluting elf_obj_tdata
1083 with another target specific pointer. */
1084 size = symtab_hdr->sh_info;
1085 size *= 2 * sizeof (bfd_signed_vma);
1086 /* Add in space to store the local GOT TLS types. */
1087 size += symtab_hdr->sh_info;
1088 local_refcounts = bfd_zalloc (abfd, size);
1089 if (local_refcounts == NULL)
1090 return NULL;
1091 elf_local_got_refcounts (abfd) = local_refcounts;
1092 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1093 symtab_hdr->sh_info);
1094 }
1095 return local_refcounts;
1096 }
1097
1098
1099 /* Look through the relocs for a section during the first phase, and
1100 calculate needed space in the global offset table, procedure linkage
1101 table, and dynamic reloc sections. At this point we haven't
1102 necessarily read all the input files. */
1103
1104 static bfd_boolean
1105 elf32_hppa_check_relocs (bfd *abfd,
1106 struct bfd_link_info *info,
1107 asection *sec,
1108 const Elf_Internal_Rela *relocs)
1109 {
1110 Elf_Internal_Shdr *symtab_hdr;
1111 struct elf_link_hash_entry **eh_syms;
1112 const Elf_Internal_Rela *rela;
1113 const Elf_Internal_Rela *rela_end;
1114 struct elf32_hppa_link_hash_table *htab;
1115 asection *sreloc;
1116
1117 if (bfd_link_relocatable (info))
1118 return TRUE;
1119
1120 htab = hppa_link_hash_table (info);
1121 if (htab == NULL)
1122 return FALSE;
1123 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1124 eh_syms = elf_sym_hashes (abfd);
1125 sreloc = NULL;
1126
1127 rela_end = relocs + sec->reloc_count;
1128 for (rela = relocs; rela < rela_end; rela++)
1129 {
1130 enum {
1131 NEED_GOT = 1,
1132 NEED_PLT = 2,
1133 NEED_DYNREL = 4,
1134 PLT_PLABEL = 8
1135 };
1136
1137 unsigned int r_symndx, r_type;
1138 struct elf32_hppa_link_hash_entry *hh;
1139 int need_entry = 0;
1140
1141 r_symndx = ELF32_R_SYM (rela->r_info);
1142
1143 if (r_symndx < symtab_hdr->sh_info)
1144 hh = NULL;
1145 else
1146 {
1147 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1148 while (hh->eh.root.type == bfd_link_hash_indirect
1149 || hh->eh.root.type == bfd_link_hash_warning)
1150 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1151 }
1152
1153 r_type = ELF32_R_TYPE (rela->r_info);
1154 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1155
1156 switch (r_type)
1157 {
1158 case R_PARISC_DLTIND14F:
1159 case R_PARISC_DLTIND14R:
1160 case R_PARISC_DLTIND21L:
1161 /* This symbol requires a global offset table entry. */
1162 need_entry = NEED_GOT;
1163 break;
1164
1165 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1166 case R_PARISC_PLABEL21L:
1167 case R_PARISC_PLABEL32:
1168 /* If the addend is non-zero, we break badly. */
1169 if (rela->r_addend != 0)
1170 abort ();
1171
1172 /* If we are creating a shared library, then we need to
1173 create a PLT entry for all PLABELs, because PLABELs with
1174 local symbols may be passed via a pointer to another
1175 object. Additionally, output a dynamic relocation
1176 pointing to the PLT entry.
1177
1178 For executables, the original 32-bit ABI allowed two
1179 different styles of PLABELs (function pointers): For
1180 global functions, the PLABEL word points into the .plt
1181 two bytes past a (function address, gp) pair, and for
1182 local functions the PLABEL points directly at the
1183 function. The magic +2 for the first type allows us to
1184 differentiate between the two. As you can imagine, this
1185 is a real pain when it comes to generating code to call
1186 functions indirectly or to compare function pointers.
1187 We avoid the mess by always pointing a PLABEL into the
1188 .plt, even for local functions. */
1189 need_entry = PLT_PLABEL | NEED_PLT;
1190 if (bfd_link_pic (info))
1191 need_entry |= NEED_DYNREL;
1192 break;
1193
1194 case R_PARISC_PCREL12F:
1195 htab->has_12bit_branch = 1;
1196 goto branch_common;
1197
1198 case R_PARISC_PCREL17C:
1199 case R_PARISC_PCREL17F:
1200 htab->has_17bit_branch = 1;
1201 goto branch_common;
1202
1203 case R_PARISC_PCREL22F:
1204 htab->has_22bit_branch = 1;
1205 branch_common:
1206 /* Function calls might need to go through the .plt, and
1207 might require long branch stubs. */
1208 if (hh == NULL)
1209 {
1210 /* We know local syms won't need a .plt entry, and if
1211 they need a long branch stub we can't guarantee that
1212 we can reach the stub. So just flag an error later
1213 if we're doing a shared link and find we need a long
1214 branch stub. */
1215 continue;
1216 }
1217 else
1218 {
1219 /* Global symbols will need a .plt entry if they remain
1220 global, and in most cases won't need a long branch
1221 stub. Unfortunately, we have to cater for the case
1222 where a symbol is forced local by versioning, or due
1223 to symbolic linking, and we lose the .plt entry. */
1224 need_entry = NEED_PLT;
1225 if (hh->eh.type == STT_PARISC_MILLI)
1226 need_entry = 0;
1227 }
1228 break;
1229
1230 case R_PARISC_SEGBASE: /* Used to set segment base. */
1231 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1232 case R_PARISC_PCREL14F: /* PC relative load/store. */
1233 case R_PARISC_PCREL14R:
1234 case R_PARISC_PCREL17R: /* External branches. */
1235 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1236 case R_PARISC_PCREL32:
1237 /* We don't need to propagate the relocation if linking a
1238 shared object since these are section relative. */
1239 continue;
1240
1241 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1242 case R_PARISC_DPREL14R:
1243 case R_PARISC_DPREL21L:
1244 if (bfd_link_pic (info))
1245 {
1246 _bfd_error_handler
1247 /* xgettext:c-format */
1248 (_("%pB: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1249 abfd,
1250 elf_hppa_howto_table[r_type].name);
1251 bfd_set_error (bfd_error_bad_value);
1252 return FALSE;
1253 }
1254 /* Fall through. */
1255
1256 case R_PARISC_DIR17F: /* Used for external branches. */
1257 case R_PARISC_DIR17R:
1258 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1259 case R_PARISC_DIR14R:
1260 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1261 case R_PARISC_DIR32: /* .word relocs. */
1262 /* We may want to output a dynamic relocation later. */
1263 need_entry = NEED_DYNREL;
1264 break;
1265
1266 /* This relocation describes the C++ object vtable hierarchy.
1267 Reconstruct it for later use during GC. */
1268 case R_PARISC_GNU_VTINHERIT:
1269 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1270 return FALSE;
1271 continue;
1272
1273 /* This relocation describes which C++ vtable entries are actually
1274 used. Record for later use during GC. */
1275 case R_PARISC_GNU_VTENTRY:
1276 BFD_ASSERT (hh != NULL);
1277 if (hh != NULL
1278 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1279 return FALSE;
1280 continue;
1281
1282 case R_PARISC_TLS_GD21L:
1283 case R_PARISC_TLS_GD14R:
1284 case R_PARISC_TLS_LDM21L:
1285 case R_PARISC_TLS_LDM14R:
1286 need_entry = NEED_GOT;
1287 break;
1288
1289 case R_PARISC_TLS_IE21L:
1290 case R_PARISC_TLS_IE14R:
1291 if (bfd_link_dll (info))
1292 info->flags |= DF_STATIC_TLS;
1293 need_entry = NEED_GOT;
1294 break;
1295
1296 default:
1297 continue;
1298 }
1299
1300 /* Now carry out our orders. */
1301 if (need_entry & NEED_GOT)
1302 {
1303 int tls_type = GOT_NORMAL;
1304
1305 switch (r_type)
1306 {
1307 default:
1308 break;
1309 case R_PARISC_TLS_GD21L:
1310 case R_PARISC_TLS_GD14R:
1311 tls_type = GOT_TLS_GD;
1312 break;
1313 case R_PARISC_TLS_LDM21L:
1314 case R_PARISC_TLS_LDM14R:
1315 tls_type = GOT_TLS_LDM;
1316 break;
1317 case R_PARISC_TLS_IE21L:
1318 case R_PARISC_TLS_IE14R:
1319 tls_type = GOT_TLS_IE;
1320 break;
1321 }
1322
1323 /* Allocate space for a GOT entry, as well as a dynamic
1324 relocation for this entry. */
1325 if (htab->etab.sgot == NULL)
1326 {
1327 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1328 return FALSE;
1329 }
1330
1331 if (hh != NULL)
1332 {
1333 if (tls_type == GOT_TLS_LDM)
1334 htab->tls_ldm_got.refcount += 1;
1335 else
1336 hh->eh.got.refcount += 1;
1337 hh->tls_type |= tls_type;
1338 }
1339 else
1340 {
1341 bfd_signed_vma *local_got_refcounts;
1342
1343 /* This is a global offset table entry for a local symbol. */
1344 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1345 if (local_got_refcounts == NULL)
1346 return FALSE;
1347 if (tls_type == GOT_TLS_LDM)
1348 htab->tls_ldm_got.refcount += 1;
1349 else
1350 local_got_refcounts[r_symndx] += 1;
1351
1352 hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type;
1353 }
1354 }
1355
1356 if (need_entry & NEED_PLT)
1357 {
1358 /* If we are creating a shared library, and this is a reloc
1359 against a weak symbol or a global symbol in a dynamic
1360 object, then we will be creating an import stub and a
1361 .plt entry for the symbol. Similarly, on a normal link
1362 to symbols defined in a dynamic object we'll need the
1363 import stub and a .plt entry. We don't know yet whether
1364 the symbol is defined or not, so make an entry anyway and
1365 clean up later in adjust_dynamic_symbol. */
1366 if ((sec->flags & SEC_ALLOC) != 0)
1367 {
1368 if (hh != NULL)
1369 {
1370 hh->eh.needs_plt = 1;
1371 hh->eh.plt.refcount += 1;
1372
1373 /* If this .plt entry is for a plabel, mark it so
1374 that adjust_dynamic_symbol will keep the entry
1375 even if it appears to be local. */
1376 if (need_entry & PLT_PLABEL)
1377 hh->plabel = 1;
1378 }
1379 else if (need_entry & PLT_PLABEL)
1380 {
1381 bfd_signed_vma *local_got_refcounts;
1382 bfd_signed_vma *local_plt_refcounts;
1383
1384 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1385 if (local_got_refcounts == NULL)
1386 return FALSE;
1387 local_plt_refcounts = (local_got_refcounts
1388 + symtab_hdr->sh_info);
1389 local_plt_refcounts[r_symndx] += 1;
1390 }
1391 }
1392 }
1393
1394 if ((need_entry & NEED_DYNREL) != 0
1395 && (sec->flags & SEC_ALLOC) != 0)
1396 {
1397 /* Flag this symbol as having a non-got, non-plt reference
1398 so that we generate copy relocs if it turns out to be
1399 dynamic. */
1400 if (hh != NULL)
1401 hh->eh.non_got_ref = 1;
1402
1403 /* If we are creating a shared library then we need to copy
1404 the reloc into the shared library. However, if we are
1405 linking with -Bsymbolic, we need only copy absolute
1406 relocs or relocs against symbols that are not defined in
1407 an object we are including in the link. PC- or DP- or
1408 DLT-relative relocs against any local sym or global sym
1409 with DEF_REGULAR set, can be discarded. At this point we
1410 have not seen all the input files, so it is possible that
1411 DEF_REGULAR is not set now but will be set later (it is
1412 never cleared). We account for that possibility below by
1413 storing information in the dyn_relocs field of the
1414 hash table entry.
1415
1416 A similar situation to the -Bsymbolic case occurs when
1417 creating shared libraries and symbol visibility changes
1418 render the symbol local.
1419
1420 As it turns out, all the relocs we will be creating here
1421 are absolute, so we cannot remove them on -Bsymbolic
1422 links or visibility changes anyway. A STUB_REL reloc
1423 is absolute too, as in that case it is the reloc in the
1424 stub we will be creating, rather than copying the PCREL
1425 reloc in the branch.
1426
1427 If on the other hand, we are creating an executable, we
1428 may need to keep relocations for symbols satisfied by a
1429 dynamic library if we manage to avoid copy relocs for the
1430 symbol. */
1431 if ((bfd_link_pic (info)
1432 && (IS_ABSOLUTE_RELOC (r_type)
1433 || (hh != NULL
1434 && (!SYMBOLIC_BIND (info, &hh->eh)
1435 || hh->eh.root.type == bfd_link_hash_defweak
1436 || !hh->eh.def_regular))))
1437 || (ELIMINATE_COPY_RELOCS
1438 && !bfd_link_pic (info)
1439 && hh != NULL
1440 && (hh->eh.root.type == bfd_link_hash_defweak
1441 || !hh->eh.def_regular)))
1442 {
1443 struct elf_dyn_relocs *hdh_p;
1444 struct elf_dyn_relocs **hdh_head;
1445
1446 /* Create a reloc section in dynobj and make room for
1447 this reloc. */
1448 if (sreloc == NULL)
1449 {
1450 sreloc = _bfd_elf_make_dynamic_reloc_section
1451 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1452
1453 if (sreloc == NULL)
1454 {
1455 bfd_set_error (bfd_error_bad_value);
1456 return FALSE;
1457 }
1458 }
1459
1460 /* If this is a global symbol, we count the number of
1461 relocations we need for this symbol. */
1462 if (hh != NULL)
1463 {
1464 hdh_head = &hh->dyn_relocs;
1465 }
1466 else
1467 {
1468 /* Track dynamic relocs needed for local syms too.
1469 We really need local syms available to do this
1470 easily. Oh well. */
1471 asection *sr;
1472 void *vpp;
1473 Elf_Internal_Sym *isym;
1474
1475 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1476 abfd, r_symndx);
1477 if (isym == NULL)
1478 return FALSE;
1479
1480 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1481 if (sr == NULL)
1482 sr = sec;
1483
1484 vpp = &elf_section_data (sr)->local_dynrel;
1485 hdh_head = (struct elf_dyn_relocs **) vpp;
1486 }
1487
1488 hdh_p = *hdh_head;
1489 if (hdh_p == NULL || hdh_p->sec != sec)
1490 {
1491 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1492 if (hdh_p == NULL)
1493 return FALSE;
1494 hdh_p->next = *hdh_head;
1495 *hdh_head = hdh_p;
1496 hdh_p->sec = sec;
1497 hdh_p->count = 0;
1498 #if RELATIVE_DYNRELOCS
1499 hdh_p->pc_count = 0;
1500 #endif
1501 }
1502
1503 hdh_p->count += 1;
1504 #if RELATIVE_DYNRELOCS
1505 if (!IS_ABSOLUTE_RELOC (rtype))
1506 hdh_p->pc_count += 1;
1507 #endif
1508 }
1509 }
1510 }
1511
1512 return TRUE;
1513 }
1514
1515 /* Return the section that should be marked against garbage collection
1516 for a given relocation. */
1517
1518 static asection *
1519 elf32_hppa_gc_mark_hook (asection *sec,
1520 struct bfd_link_info *info,
1521 Elf_Internal_Rela *rela,
1522 struct elf_link_hash_entry *hh,
1523 Elf_Internal_Sym *sym)
1524 {
1525 if (hh != NULL)
1526 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1527 {
1528 case R_PARISC_GNU_VTINHERIT:
1529 case R_PARISC_GNU_VTENTRY:
1530 return NULL;
1531 }
1532
1533 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1534 }
1535
1536 /* Support for core dump NOTE sections. */
1537
1538 static bfd_boolean
1539 elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1540 {
1541 int offset;
1542 size_t size;
1543
1544 switch (note->descsz)
1545 {
1546 default:
1547 return FALSE;
1548
1549 case 396: /* Linux/hppa */
1550 /* pr_cursig */
1551 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1552
1553 /* pr_pid */
1554 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1555
1556 /* pr_reg */
1557 offset = 72;
1558 size = 320;
1559
1560 break;
1561 }
1562
1563 /* Make a ".reg/999" section. */
1564 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1565 size, note->descpos + offset);
1566 }
1567
1568 static bfd_boolean
1569 elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1570 {
1571 switch (note->descsz)
1572 {
1573 default:
1574 return FALSE;
1575
1576 case 124: /* Linux/hppa elf_prpsinfo. */
1577 elf_tdata (abfd)->core->program
1578 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1579 elf_tdata (abfd)->core->command
1580 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1581 }
1582
1583 /* Note that for some reason, a spurious space is tacked
1584 onto the end of the args in some (at least one anyway)
1585 implementations, so strip it off if it exists. */
1586 {
1587 char *command = elf_tdata (abfd)->core->command;
1588 int n = strlen (command);
1589
1590 if (0 < n && command[n - 1] == ' ')
1591 command[n - 1] = '\0';
1592 }
1593
1594 return TRUE;
1595 }
1596
1597 /* Our own version of hide_symbol, so that we can keep plt entries for
1598 plabels. */
1599
1600 static void
1601 elf32_hppa_hide_symbol (struct bfd_link_info *info,
1602 struct elf_link_hash_entry *eh,
1603 bfd_boolean force_local)
1604 {
1605 if (force_local)
1606 {
1607 eh->forced_local = 1;
1608 if (eh->dynindx != -1)
1609 {
1610 eh->dynindx = -1;
1611 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1612 eh->dynstr_index);
1613 }
1614
1615 /* PR 16082: Remove version information from hidden symbol. */
1616 eh->verinfo.verdef = NULL;
1617 eh->verinfo.vertree = NULL;
1618 }
1619
1620 /* STT_GNU_IFUNC symbol must go through PLT. */
1621 if (! hppa_elf_hash_entry (eh)->plabel
1622 && eh->type != STT_GNU_IFUNC)
1623 {
1624 eh->needs_plt = 0;
1625 eh->plt = elf_hash_table (info)->init_plt_offset;
1626 }
1627 }
1628
1629 /* Find any dynamic relocs that apply to read-only sections. */
1630
1631 static asection *
1632 readonly_dynrelocs (struct elf_link_hash_entry *eh)
1633 {
1634 struct elf32_hppa_link_hash_entry *hh;
1635 struct elf_dyn_relocs *hdh_p;
1636
1637 hh = hppa_elf_hash_entry (eh);
1638 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
1639 {
1640 asection *sec = hdh_p->sec->output_section;
1641
1642 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1643 return hdh_p->sec;
1644 }
1645 return NULL;
1646 }
1647
1648 /* Return true if we have dynamic relocs against H or any of its weak
1649 aliases, that apply to read-only sections. Cannot be used after
1650 size_dynamic_sections. */
1651
1652 static bfd_boolean
1653 alias_readonly_dynrelocs (struct elf_link_hash_entry *eh)
1654 {
1655 struct elf32_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1656 do
1657 {
1658 if (readonly_dynrelocs (&hh->eh))
1659 return TRUE;
1660 hh = hppa_elf_hash_entry (hh->eh.u.alias);
1661 } while (hh != NULL && &hh->eh != eh);
1662
1663 return FALSE;
1664 }
1665
1666 /* Adjust a symbol defined by a dynamic object and referenced by a
1667 regular object. The current definition is in some section of the
1668 dynamic object, but we're not including those sections. We have to
1669 change the definition to something the rest of the link can
1670 understand. */
1671
1672 static bfd_boolean
1673 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1674 struct elf_link_hash_entry *eh)
1675 {
1676 struct elf32_hppa_link_hash_table *htab;
1677 asection *sec, *srel;
1678
1679 /* If this is a function, put it in the procedure linkage table. We
1680 will fill in the contents of the procedure linkage table later. */
1681 if (eh->type == STT_FUNC
1682 || eh->needs_plt)
1683 {
1684 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh)
1685 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh));
1686 /* Discard dyn_relocs when non-pic if we've decided that a
1687 function symbol is local. */
1688 if (!bfd_link_pic (info) && local)
1689 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1690
1691 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1692 The refcounts are not reliable when it has been hidden since
1693 hide_symbol can be called before the plabel flag is set. */
1694 if (hppa_elf_hash_entry (eh)->plabel)
1695 eh->plt.refcount = 1;
1696
1697 /* Note that unlike some other backends, the refcount is not
1698 incremented for a non-call (and non-plabel) function reference. */
1699 else if (eh->plt.refcount <= 0
1700 || local)
1701 {
1702 /* The .plt entry is not needed when:
1703 a) Garbage collection has removed all references to the
1704 symbol, or
1705 b) We know for certain the symbol is defined in this
1706 object, and it's not a weak definition, nor is the symbol
1707 used by a plabel relocation. Either this object is the
1708 application or we are doing a shared symbolic link. */
1709 eh->plt.offset = (bfd_vma) -1;
1710 eh->needs_plt = 0;
1711 }
1712
1713 /* Unlike other targets, elf32-hppa.c does not define a function
1714 symbol in a non-pic executable on PLT stub code, so we don't
1715 have a local definition in that case. ie. dyn_relocs can't
1716 be discarded. */
1717
1718 /* Function symbols can't have copy relocs. */
1719 return TRUE;
1720 }
1721 else
1722 eh->plt.offset = (bfd_vma) -1;
1723
1724 htab = hppa_link_hash_table (info);
1725 if (htab == NULL)
1726 return FALSE;
1727
1728 /* If this is a weak symbol, and there is a real definition, the
1729 processor independent code will have arranged for us to see the
1730 real definition first, and we can just use the same value. */
1731 if (eh->is_weakalias)
1732 {
1733 struct elf_link_hash_entry *def = weakdef (eh);
1734 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1735 eh->root.u.def.section = def->root.u.def.section;
1736 eh->root.u.def.value = def->root.u.def.value;
1737 if (def->root.u.def.section == htab->etab.sdynbss
1738 || def->root.u.def.section == htab->etab.sdynrelro)
1739 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1740 return TRUE;
1741 }
1742
1743 /* This is a reference to a symbol defined by a dynamic object which
1744 is not a function. */
1745
1746 /* If we are creating a shared library, we must presume that the
1747 only references to the symbol are via the global offset table.
1748 For such cases we need not do anything here; the relocations will
1749 be handled correctly by relocate_section. */
1750 if (bfd_link_pic (info))
1751 return TRUE;
1752
1753 /* If there are no references to this symbol that do not use the
1754 GOT, we don't need to generate a copy reloc. */
1755 if (!eh->non_got_ref)
1756 return TRUE;
1757
1758 /* If -z nocopyreloc was given, we won't generate them either. */
1759 if (info->nocopyreloc)
1760 return TRUE;
1761
1762 /* If we don't find any dynamic relocs in read-only sections, then
1763 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1764 if (ELIMINATE_COPY_RELOCS
1765 && !alias_readonly_dynrelocs (eh))
1766 return TRUE;
1767
1768 /* We must allocate the symbol in our .dynbss section, which will
1769 become part of the .bss section of the executable. There will be
1770 an entry for this symbol in the .dynsym section. The dynamic
1771 object will contain position independent code, so all references
1772 from the dynamic object to this symbol will go through the global
1773 offset table. The dynamic linker will use the .dynsym entry to
1774 determine the address it must put in the global offset table, so
1775 both the dynamic object and the regular object will refer to the
1776 same memory location for the variable. */
1777 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1778 {
1779 sec = htab->etab.sdynrelro;
1780 srel = htab->etab.sreldynrelro;
1781 }
1782 else
1783 {
1784 sec = htab->etab.sdynbss;
1785 srel = htab->etab.srelbss;
1786 }
1787 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1788 {
1789 /* We must generate a COPY reloc to tell the dynamic linker to
1790 copy the initial value out of the dynamic object and into the
1791 runtime process image. */
1792 srel->size += sizeof (Elf32_External_Rela);
1793 eh->needs_copy = 1;
1794 }
1795
1796 /* We no longer want dyn_relocs. */
1797 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1798 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
1799 }
1800
1801 /* If EH is undefined, make it dynamic if that makes sense. */
1802
1803 static bfd_boolean
1804 ensure_undef_dynamic (struct bfd_link_info *info,
1805 struct elf_link_hash_entry *eh)
1806 {
1807 struct elf_link_hash_table *htab = elf_hash_table (info);
1808
1809 if (htab->dynamic_sections_created
1810 && (eh->root.type == bfd_link_hash_undefweak
1811 || eh->root.type == bfd_link_hash_undefined)
1812 && eh->dynindx == -1
1813 && !eh->forced_local
1814 && eh->type != STT_PARISC_MILLI
1815 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)
1816 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1817 return bfd_elf_link_record_dynamic_symbol (info, eh);
1818 return TRUE;
1819 }
1820
1821 /* Allocate space in the .plt for entries that won't have relocations.
1822 ie. plabel entries. */
1823
1824 static bfd_boolean
1825 allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1826 {
1827 struct bfd_link_info *info;
1828 struct elf32_hppa_link_hash_table *htab;
1829 struct elf32_hppa_link_hash_entry *hh;
1830 asection *sec;
1831
1832 if (eh->root.type == bfd_link_hash_indirect)
1833 return TRUE;
1834
1835 info = (struct bfd_link_info *) inf;
1836 hh = hppa_elf_hash_entry (eh);
1837 htab = hppa_link_hash_table (info);
1838 if (htab == NULL)
1839 return FALSE;
1840
1841 if (htab->etab.dynamic_sections_created
1842 && eh->plt.refcount > 0)
1843 {
1844 if (!ensure_undef_dynamic (info, eh))
1845 return FALSE;
1846
1847 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
1848 {
1849 /* Allocate these later. From this point on, h->plabel
1850 means that the plt entry is only used by a plabel.
1851 We'll be using a normal plt entry for this symbol, so
1852 clear the plabel indicator. */
1853
1854 hh->plabel = 0;
1855 }
1856 else if (hh->plabel)
1857 {
1858 /* Make an entry in the .plt section for plabel references
1859 that won't have a .plt entry for other reasons. */
1860 sec = htab->etab.splt;
1861 eh->plt.offset = sec->size;
1862 sec->size += PLT_ENTRY_SIZE;
1863 if (bfd_link_pic (info))
1864 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1865 }
1866 else
1867 {
1868 /* No .plt entry needed. */
1869 eh->plt.offset = (bfd_vma) -1;
1870 eh->needs_plt = 0;
1871 }
1872 }
1873 else
1874 {
1875 eh->plt.offset = (bfd_vma) -1;
1876 eh->needs_plt = 0;
1877 }
1878
1879 return TRUE;
1880 }
1881
1882 /* Calculate size of GOT entries for symbol given its TLS_TYPE. */
1883
1884 static inline unsigned int
1885 got_entries_needed (int tls_type)
1886 {
1887 unsigned int need = 0;
1888
1889 if ((tls_type & GOT_NORMAL) != 0)
1890 need += GOT_ENTRY_SIZE;
1891 if ((tls_type & GOT_TLS_GD) != 0)
1892 need += GOT_ENTRY_SIZE * 2;
1893 if ((tls_type & GOT_TLS_IE) != 0)
1894 need += GOT_ENTRY_SIZE;
1895 return need;
1896 }
1897
1898 /* Calculate size of relocs needed for symbol given its TLS_TYPE and
1899 NEEDed GOT entries. TPREL_KNOWN says a TPREL offset can be
1900 calculated at link time. DTPREL_KNOWN says the same for a DTPREL
1901 offset. */
1902
1903 static inline unsigned int
1904 got_relocs_needed (int tls_type, unsigned int need,
1905 bfd_boolean dtprel_known, bfd_boolean tprel_known)
1906 {
1907 /* All the entries we allocated need relocs.
1908 Except for GD and IE with local symbols. */
1909 if ((tls_type & GOT_TLS_GD) != 0 && dtprel_known)
1910 need -= GOT_ENTRY_SIZE;
1911 if ((tls_type & GOT_TLS_IE) != 0 && tprel_known)
1912 need -= GOT_ENTRY_SIZE;
1913 return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE;
1914 }
1915
1916 /* Allocate space in .plt, .got and associated reloc sections for
1917 global syms. */
1918
1919 static bfd_boolean
1920 allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
1921 {
1922 struct bfd_link_info *info;
1923 struct elf32_hppa_link_hash_table *htab;
1924 asection *sec;
1925 struct elf32_hppa_link_hash_entry *hh;
1926 struct elf_dyn_relocs *hdh_p;
1927
1928 if (eh->root.type == bfd_link_hash_indirect)
1929 return TRUE;
1930
1931 info = inf;
1932 htab = hppa_link_hash_table (info);
1933 if (htab == NULL)
1934 return FALSE;
1935
1936 hh = hppa_elf_hash_entry (eh);
1937
1938 if (htab->etab.dynamic_sections_created
1939 && eh->plt.offset != (bfd_vma) -1
1940 && !hh->plabel
1941 && eh->plt.refcount > 0)
1942 {
1943 /* Make an entry in the .plt section. */
1944 sec = htab->etab.splt;
1945 eh->plt.offset = sec->size;
1946 sec->size += PLT_ENTRY_SIZE;
1947
1948 /* We also need to make an entry in the .rela.plt section. */
1949 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1950 htab->need_plt_stub = 1;
1951 }
1952
1953 if (eh->got.refcount > 0)
1954 {
1955 unsigned int need;
1956
1957 if (!ensure_undef_dynamic (info, eh))
1958 return FALSE;
1959
1960 sec = htab->etab.sgot;
1961 eh->got.offset = sec->size;
1962 need = got_entries_needed (hh->tls_type);
1963 sec->size += need;
1964 if (htab->etab.dynamic_sections_created
1965 && (bfd_link_dll (info)
1966 || (bfd_link_pic (info) && (hh->tls_type & GOT_NORMAL) != 0)
1967 || (eh->dynindx != -1
1968 && !SYMBOL_REFERENCES_LOCAL (info, eh)))
1969 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
1970 {
1971 bfd_boolean local = SYMBOL_REFERENCES_LOCAL (info, eh);
1972 htab->etab.srelgot->size
1973 += got_relocs_needed (hh->tls_type, need, local,
1974 local && bfd_link_executable (info));
1975 }
1976 }
1977 else
1978 eh->got.offset = (bfd_vma) -1;
1979
1980 /* If no dynamic sections we can't have dynamic relocs. */
1981 if (!htab->etab.dynamic_sections_created)
1982 hh->dyn_relocs = NULL;
1983
1984 /* Discard relocs on undefined syms with non-default visibility. */
1985 else if ((eh->root.type == bfd_link_hash_undefined
1986 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
1987 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
1988 hh->dyn_relocs = NULL;
1989
1990 if (hh->dyn_relocs == NULL)
1991 return TRUE;
1992
1993 /* If this is a -Bsymbolic shared link, then we need to discard all
1994 space allocated for dynamic pc-relative relocs against symbols
1995 defined in a regular object. For the normal shared case, discard
1996 space for relocs that have become local due to symbol visibility
1997 changes. */
1998 if (bfd_link_pic (info))
1999 {
2000 #if RELATIVE_DYNRELOCS
2001 if (SYMBOL_CALLS_LOCAL (info, eh))
2002 {
2003 struct elf_dyn_relocs **hdh_pp;
2004
2005 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2006 {
2007 hdh_p->count -= hdh_p->pc_count;
2008 hdh_p->pc_count = 0;
2009 if (hdh_p->count == 0)
2010 *hdh_pp = hdh_p->next;
2011 else
2012 hdh_pp = &hdh_p->next;
2013 }
2014 }
2015 #endif
2016
2017 if (hh->dyn_relocs != NULL)
2018 {
2019 if (!ensure_undef_dynamic (info, eh))
2020 return FALSE;
2021 }
2022 }
2023 else if (ELIMINATE_COPY_RELOCS)
2024 {
2025 /* For the non-shared case, discard space for relocs against
2026 symbols which turn out to need copy relocs or are not
2027 dynamic. */
2028
2029 if (eh->dynamic_adjusted
2030 && !eh->def_regular
2031 && !ELF_COMMON_DEF_P (eh))
2032 {
2033 if (!ensure_undef_dynamic (info, eh))
2034 return FALSE;
2035
2036 if (eh->dynindx == -1)
2037 hh->dyn_relocs = NULL;
2038 }
2039 else
2040 hh->dyn_relocs = NULL;
2041 }
2042
2043 /* Finally, allocate space. */
2044 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
2045 {
2046 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2047 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2048 }
2049
2050 return TRUE;
2051 }
2052
2053 /* This function is called via elf_link_hash_traverse to force
2054 millicode symbols local so they do not end up as globals in the
2055 dynamic symbol table. We ought to be able to do this in
2056 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2057 for all dynamic symbols. Arguably, this is a bug in
2058 elf_adjust_dynamic_symbol. */
2059
2060 static bfd_boolean
2061 clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2062 struct bfd_link_info *info)
2063 {
2064 if (eh->type == STT_PARISC_MILLI
2065 && !eh->forced_local)
2066 {
2067 elf32_hppa_hide_symbol (info, eh, TRUE);
2068 }
2069 return TRUE;
2070 }
2071
2072 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2073 read-only sections. */
2074
2075 static bfd_boolean
2076 maybe_set_textrel (struct elf_link_hash_entry *eh, void *inf)
2077 {
2078 asection *sec;
2079
2080 if (eh->root.type == bfd_link_hash_indirect)
2081 return TRUE;
2082
2083 sec = readonly_dynrelocs (eh);
2084 if (sec != NULL)
2085 {
2086 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2087
2088 info->flags |= DF_TEXTREL;
2089 info->callbacks->minfo
2090 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2091 sec->owner, eh->root.root.string, sec);
2092 /* Not an error, just cut short the traversal. */
2093 return FALSE;
2094 }
2095 return TRUE;
2096 }
2097
2098 /* Set the sizes of the dynamic sections. */
2099
2100 static bfd_boolean
2101 elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2102 struct bfd_link_info *info)
2103 {
2104 struct elf32_hppa_link_hash_table *htab;
2105 bfd *dynobj;
2106 bfd *ibfd;
2107 asection *sec;
2108 bfd_boolean relocs;
2109
2110 htab = hppa_link_hash_table (info);
2111 if (htab == NULL)
2112 return FALSE;
2113
2114 dynobj = htab->etab.dynobj;
2115 if (dynobj == NULL)
2116 abort ();
2117
2118 if (htab->etab.dynamic_sections_created)
2119 {
2120 /* Set the contents of the .interp section to the interpreter. */
2121 if (bfd_link_executable (info) && !info->nointerp)
2122 {
2123 sec = bfd_get_linker_section (dynobj, ".interp");
2124 if (sec == NULL)
2125 abort ();
2126 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2127 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2128 }
2129
2130 /* Force millicode symbols local. */
2131 elf_link_hash_traverse (&htab->etab,
2132 clobber_millicode_symbols,
2133 info);
2134 }
2135
2136 /* Set up .got and .plt offsets for local syms, and space for local
2137 dynamic relocs. */
2138 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2139 {
2140 bfd_signed_vma *local_got;
2141 bfd_signed_vma *end_local_got;
2142 bfd_signed_vma *local_plt;
2143 bfd_signed_vma *end_local_plt;
2144 bfd_size_type locsymcount;
2145 Elf_Internal_Shdr *symtab_hdr;
2146 asection *srel;
2147 char *local_tls_type;
2148
2149 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2150 continue;
2151
2152 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2153 {
2154 struct elf_dyn_relocs *hdh_p;
2155
2156 for (hdh_p = ((struct elf_dyn_relocs *)
2157 elf_section_data (sec)->local_dynrel);
2158 hdh_p != NULL;
2159 hdh_p = hdh_p->next)
2160 {
2161 if (!bfd_is_abs_section (hdh_p->sec)
2162 && bfd_is_abs_section (hdh_p->sec->output_section))
2163 {
2164 /* Input section has been discarded, either because
2165 it is a copy of a linkonce section or due to
2166 linker script /DISCARD/, so we'll be discarding
2167 the relocs too. */
2168 }
2169 else if (hdh_p->count != 0)
2170 {
2171 srel = elf_section_data (hdh_p->sec)->sreloc;
2172 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2173 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2174 info->flags |= DF_TEXTREL;
2175 }
2176 }
2177 }
2178
2179 local_got = elf_local_got_refcounts (ibfd);
2180 if (!local_got)
2181 continue;
2182
2183 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2184 locsymcount = symtab_hdr->sh_info;
2185 end_local_got = local_got + locsymcount;
2186 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2187 sec = htab->etab.sgot;
2188 srel = htab->etab.srelgot;
2189 for (; local_got < end_local_got; ++local_got)
2190 {
2191 if (*local_got > 0)
2192 {
2193 unsigned int need;
2194
2195 *local_got = sec->size;
2196 need = got_entries_needed (*local_tls_type);
2197 sec->size += need;
2198 if (bfd_link_dll (info)
2199 || (bfd_link_pic (info)
2200 && (*local_tls_type & GOT_NORMAL) != 0))
2201 htab->etab.srelgot->size
2202 += got_relocs_needed (*local_tls_type, need, TRUE,
2203 bfd_link_executable (info));
2204 }
2205 else
2206 *local_got = (bfd_vma) -1;
2207
2208 ++local_tls_type;
2209 }
2210
2211 local_plt = end_local_got;
2212 end_local_plt = local_plt + locsymcount;
2213 if (! htab->etab.dynamic_sections_created)
2214 {
2215 /* Won't be used, but be safe. */
2216 for (; local_plt < end_local_plt; ++local_plt)
2217 *local_plt = (bfd_vma) -1;
2218 }
2219 else
2220 {
2221 sec = htab->etab.splt;
2222 srel = htab->etab.srelplt;
2223 for (; local_plt < end_local_plt; ++local_plt)
2224 {
2225 if (*local_plt > 0)
2226 {
2227 *local_plt = sec->size;
2228 sec->size += PLT_ENTRY_SIZE;
2229 if (bfd_link_pic (info))
2230 srel->size += sizeof (Elf32_External_Rela);
2231 }
2232 else
2233 *local_plt = (bfd_vma) -1;
2234 }
2235 }
2236 }
2237
2238 if (htab->tls_ldm_got.refcount > 0)
2239 {
2240 /* Allocate 2 got entries and 1 dynamic reloc for
2241 R_PARISC_TLS_DTPMOD32 relocs. */
2242 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2243 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2244 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2245 }
2246 else
2247 htab->tls_ldm_got.offset = -1;
2248
2249 /* Do all the .plt entries without relocs first. The dynamic linker
2250 uses the last .plt reloc to find the end of the .plt (and hence
2251 the start of the .got) for lazy linking. */
2252 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2253
2254 /* Allocate global sym .plt and .got entries, and space for global
2255 sym dynamic relocs. */
2256 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2257
2258 /* The check_relocs and adjust_dynamic_symbol entry points have
2259 determined the sizes of the various dynamic sections. Allocate
2260 memory for them. */
2261 relocs = FALSE;
2262 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2263 {
2264 if ((sec->flags & SEC_LINKER_CREATED) == 0)
2265 continue;
2266
2267 if (sec == htab->etab.splt)
2268 {
2269 if (htab->need_plt_stub)
2270 {
2271 /* Make space for the plt stub at the end of the .plt
2272 section. We want this stub right at the end, up
2273 against the .got section. */
2274 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
2275 int pltalign = bfd_section_alignment (dynobj, sec);
2276 bfd_size_type mask;
2277
2278 if (gotalign > pltalign)
2279 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2280 mask = ((bfd_size_type) 1 << gotalign) - 1;
2281 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2282 }
2283 }
2284 else if (sec == htab->etab.sgot
2285 || sec == htab->etab.sdynbss
2286 || sec == htab->etab.sdynrelro)
2287 ;
2288 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2289 {
2290 if (sec->size != 0)
2291 {
2292 /* Remember whether there are any reloc sections other
2293 than .rela.plt. */
2294 if (sec != htab->etab.srelplt)
2295 relocs = TRUE;
2296
2297 /* We use the reloc_count field as a counter if we need
2298 to copy relocs into the output file. */
2299 sec->reloc_count = 0;
2300 }
2301 }
2302 else
2303 {
2304 /* It's not one of our sections, so don't allocate space. */
2305 continue;
2306 }
2307
2308 if (sec->size == 0)
2309 {
2310 /* If we don't need this section, strip it from the
2311 output file. This is mostly to handle .rela.bss and
2312 .rela.plt. We must create both sections in
2313 create_dynamic_sections, because they must be created
2314 before the linker maps input sections to output
2315 sections. The linker does that before
2316 adjust_dynamic_symbol is called, and it is that
2317 function which decides whether anything needs to go
2318 into these sections. */
2319 sec->flags |= SEC_EXCLUDE;
2320 continue;
2321 }
2322
2323 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2324 continue;
2325
2326 /* Allocate memory for the section contents. Zero it, because
2327 we may not fill in all the reloc sections. */
2328 sec->contents = bfd_zalloc (dynobj, sec->size);
2329 if (sec->contents == NULL)
2330 return FALSE;
2331 }
2332
2333 if (htab->etab.dynamic_sections_created)
2334 {
2335 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2336 actually has nothing to do with the PLT, it is how we
2337 communicate the LTP value of a load module to the dynamic
2338 linker. */
2339 #define add_dynamic_entry(TAG, VAL) \
2340 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2341
2342 if (!add_dynamic_entry (DT_PLTGOT, 0))
2343 return FALSE;
2344
2345 /* Add some entries to the .dynamic section. We fill in the
2346 values later, in elf32_hppa_finish_dynamic_sections, but we
2347 must add the entries now so that we get the correct size for
2348 the .dynamic section. The DT_DEBUG entry is filled in by the
2349 dynamic linker and used by the debugger. */
2350 if (bfd_link_executable (info))
2351 {
2352 if (!add_dynamic_entry (DT_DEBUG, 0))
2353 return FALSE;
2354 }
2355
2356 if (htab->etab.srelplt->size != 0)
2357 {
2358 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2359 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2360 || !add_dynamic_entry (DT_JMPREL, 0))
2361 return FALSE;
2362 }
2363
2364 if (relocs)
2365 {
2366 if (!add_dynamic_entry (DT_RELA, 0)
2367 || !add_dynamic_entry (DT_RELASZ, 0)
2368 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2369 return FALSE;
2370
2371 /* If any dynamic relocs apply to a read-only section,
2372 then we need a DT_TEXTREL entry. */
2373 if ((info->flags & DF_TEXTREL) == 0)
2374 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
2375
2376 if ((info->flags & DF_TEXTREL) != 0)
2377 {
2378 if (!add_dynamic_entry (DT_TEXTREL, 0))
2379 return FALSE;
2380 }
2381 }
2382 }
2383 #undef add_dynamic_entry
2384
2385 return TRUE;
2386 }
2387
2388 /* External entry points for sizing and building linker stubs. */
2389
2390 /* Set up various things so that we can make a list of input sections
2391 for each output section included in the link. Returns -1 on error,
2392 0 when no stubs will be needed, and 1 on success. */
2393
2394 int
2395 elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2396 {
2397 bfd *input_bfd;
2398 unsigned int bfd_count;
2399 unsigned int top_id, top_index;
2400 asection *section;
2401 asection **input_list, **list;
2402 bfd_size_type amt;
2403 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2404
2405 if (htab == NULL)
2406 return -1;
2407
2408 /* Count the number of input BFDs and find the top input section id. */
2409 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2410 input_bfd != NULL;
2411 input_bfd = input_bfd->link.next)
2412 {
2413 bfd_count += 1;
2414 for (section = input_bfd->sections;
2415 section != NULL;
2416 section = section->next)
2417 {
2418 if (top_id < section->id)
2419 top_id = section->id;
2420 }
2421 }
2422 htab->bfd_count = bfd_count;
2423
2424 amt = sizeof (struct map_stub) * (top_id + 1);
2425 htab->stub_group = bfd_zmalloc (amt);
2426 if (htab->stub_group == NULL)
2427 return -1;
2428
2429 /* We can't use output_bfd->section_count here to find the top output
2430 section index as some sections may have been removed, and
2431 strip_excluded_output_sections doesn't renumber the indices. */
2432 for (section = output_bfd->sections, top_index = 0;
2433 section != NULL;
2434 section = section->next)
2435 {
2436 if (top_index < section->index)
2437 top_index = section->index;
2438 }
2439
2440 htab->top_index = top_index;
2441 amt = sizeof (asection *) * (top_index + 1);
2442 input_list = bfd_malloc (amt);
2443 htab->input_list = input_list;
2444 if (input_list == NULL)
2445 return -1;
2446
2447 /* For sections we aren't interested in, mark their entries with a
2448 value we can check later. */
2449 list = input_list + top_index;
2450 do
2451 *list = bfd_abs_section_ptr;
2452 while (list-- != input_list);
2453
2454 for (section = output_bfd->sections;
2455 section != NULL;
2456 section = section->next)
2457 {
2458 if ((section->flags & SEC_CODE) != 0)
2459 input_list[section->index] = NULL;
2460 }
2461
2462 return 1;
2463 }
2464
2465 /* The linker repeatedly calls this function for each input section,
2466 in the order that input sections are linked into output sections.
2467 Build lists of input sections to determine groupings between which
2468 we may insert linker stubs. */
2469
2470 void
2471 elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2472 {
2473 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2474
2475 if (htab == NULL)
2476 return;
2477
2478 if (isec->output_section->index <= htab->top_index)
2479 {
2480 asection **list = htab->input_list + isec->output_section->index;
2481 if (*list != bfd_abs_section_ptr)
2482 {
2483 /* Steal the link_sec pointer for our list. */
2484 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2485 /* This happens to make the list in reverse order,
2486 which is what we want. */
2487 PREV_SEC (isec) = *list;
2488 *list = isec;
2489 }
2490 }
2491 }
2492
2493 /* See whether we can group stub sections together. Grouping stub
2494 sections may result in fewer stubs. More importantly, we need to
2495 put all .init* and .fini* stubs at the beginning of the .init or
2496 .fini output sections respectively, because glibc splits the
2497 _init and _fini functions into multiple parts. Putting a stub in
2498 the middle of a function is not a good idea. */
2499
2500 static void
2501 group_sections (struct elf32_hppa_link_hash_table *htab,
2502 bfd_size_type stub_group_size,
2503 bfd_boolean stubs_always_before_branch)
2504 {
2505 asection **list = htab->input_list + htab->top_index;
2506 do
2507 {
2508 asection *tail = *list;
2509 if (tail == bfd_abs_section_ptr)
2510 continue;
2511 while (tail != NULL)
2512 {
2513 asection *curr;
2514 asection *prev;
2515 bfd_size_type total;
2516 bfd_boolean big_sec;
2517
2518 curr = tail;
2519 total = tail->size;
2520 big_sec = total >= stub_group_size;
2521
2522 while ((prev = PREV_SEC (curr)) != NULL
2523 && ((total += curr->output_offset - prev->output_offset)
2524 < stub_group_size))
2525 curr = prev;
2526
2527 /* OK, the size from the start of CURR to the end is less
2528 than 240000 bytes and thus can be handled by one stub
2529 section. (or the tail section is itself larger than
2530 240000 bytes, in which case we may be toast.)
2531 We should really be keeping track of the total size of
2532 stubs added here, as stubs contribute to the final output
2533 section size. That's a little tricky, and this way will
2534 only break if stubs added total more than 22144 bytes, or
2535 2768 long branch stubs. It seems unlikely for more than
2536 2768 different functions to be called, especially from
2537 code only 240000 bytes long. This limit used to be
2538 250000, but c++ code tends to generate lots of little
2539 functions, and sometimes violated the assumption. */
2540 do
2541 {
2542 prev = PREV_SEC (tail);
2543 /* Set up this stub group. */
2544 htab->stub_group[tail->id].link_sec = curr;
2545 }
2546 while (tail != curr && (tail = prev) != NULL);
2547
2548 /* But wait, there's more! Input sections up to 240000
2549 bytes before the stub section can be handled by it too.
2550 Don't do this if we have a really large section after the
2551 stubs, as adding more stubs increases the chance that
2552 branches may not reach into the stub section. */
2553 if (!stubs_always_before_branch && !big_sec)
2554 {
2555 total = 0;
2556 while (prev != NULL
2557 && ((total += tail->output_offset - prev->output_offset)
2558 < stub_group_size))
2559 {
2560 tail = prev;
2561 prev = PREV_SEC (tail);
2562 htab->stub_group[tail->id].link_sec = curr;
2563 }
2564 }
2565 tail = prev;
2566 }
2567 }
2568 while (list-- != htab->input_list);
2569 free (htab->input_list);
2570 #undef PREV_SEC
2571 }
2572
2573 /* Read in all local syms for all input bfds, and create hash entries
2574 for export stubs if we are building a multi-subspace shared lib.
2575 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2576
2577 static int
2578 get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2579 {
2580 unsigned int bfd_indx;
2581 Elf_Internal_Sym *local_syms, **all_local_syms;
2582 int stub_changed = 0;
2583 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2584
2585 if (htab == NULL)
2586 return -1;
2587
2588 /* We want to read in symbol extension records only once. To do this
2589 we need to read in the local symbols in parallel and save them for
2590 later use; so hold pointers to the local symbols in an array. */
2591 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2592 all_local_syms = bfd_zmalloc (amt);
2593 htab->all_local_syms = all_local_syms;
2594 if (all_local_syms == NULL)
2595 return -1;
2596
2597 /* Walk over all the input BFDs, swapping in local symbols.
2598 If we are creating a shared library, create hash entries for the
2599 export stubs. */
2600 for (bfd_indx = 0;
2601 input_bfd != NULL;
2602 input_bfd = input_bfd->link.next, bfd_indx++)
2603 {
2604 Elf_Internal_Shdr *symtab_hdr;
2605
2606 /* We'll need the symbol table in a second. */
2607 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2608 if (symtab_hdr->sh_info == 0)
2609 continue;
2610
2611 /* We need an array of the local symbols attached to the input bfd. */
2612 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2613 if (local_syms == NULL)
2614 {
2615 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2616 symtab_hdr->sh_info, 0,
2617 NULL, NULL, NULL);
2618 /* Cache them for elf_link_input_bfd. */
2619 symtab_hdr->contents = (unsigned char *) local_syms;
2620 }
2621 if (local_syms == NULL)
2622 return -1;
2623
2624 all_local_syms[bfd_indx] = local_syms;
2625
2626 if (bfd_link_pic (info) && htab->multi_subspace)
2627 {
2628 struct elf_link_hash_entry **eh_syms;
2629 struct elf_link_hash_entry **eh_symend;
2630 unsigned int symcount;
2631
2632 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2633 - symtab_hdr->sh_info);
2634 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2635 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2636
2637 /* Look through the global syms for functions; We need to
2638 build export stubs for all globally visible functions. */
2639 for (; eh_syms < eh_symend; eh_syms++)
2640 {
2641 struct elf32_hppa_link_hash_entry *hh;
2642
2643 hh = hppa_elf_hash_entry (*eh_syms);
2644
2645 while (hh->eh.root.type == bfd_link_hash_indirect
2646 || hh->eh.root.type == bfd_link_hash_warning)
2647 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2648
2649 /* At this point in the link, undefined syms have been
2650 resolved, so we need to check that the symbol was
2651 defined in this BFD. */
2652 if ((hh->eh.root.type == bfd_link_hash_defined
2653 || hh->eh.root.type == bfd_link_hash_defweak)
2654 && hh->eh.type == STT_FUNC
2655 && hh->eh.root.u.def.section->output_section != NULL
2656 && (hh->eh.root.u.def.section->output_section->owner
2657 == output_bfd)
2658 && hh->eh.root.u.def.section->owner == input_bfd
2659 && hh->eh.def_regular
2660 && !hh->eh.forced_local
2661 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2662 {
2663 asection *sec;
2664 const char *stub_name;
2665 struct elf32_hppa_stub_hash_entry *hsh;
2666
2667 sec = hh->eh.root.u.def.section;
2668 stub_name = hh_name (hh);
2669 hsh = hppa_stub_hash_lookup (&htab->bstab,
2670 stub_name,
2671 FALSE, FALSE);
2672 if (hsh == NULL)
2673 {
2674 hsh = hppa_add_stub (stub_name, sec, htab);
2675 if (!hsh)
2676 return -1;
2677
2678 hsh->target_value = hh->eh.root.u.def.value;
2679 hsh->target_section = hh->eh.root.u.def.section;
2680 hsh->stub_type = hppa_stub_export;
2681 hsh->hh = hh;
2682 stub_changed = 1;
2683 }
2684 else
2685 {
2686 /* xgettext:c-format */
2687 _bfd_error_handler (_("%pB: duplicate export stub %s"),
2688 input_bfd, stub_name);
2689 }
2690 }
2691 }
2692 }
2693 }
2694
2695 return stub_changed;
2696 }
2697
2698 /* Determine and set the size of the stub section for a final link.
2699
2700 The basic idea here is to examine all the relocations looking for
2701 PC-relative calls to a target that is unreachable with a "bl"
2702 instruction. */
2703
2704 bfd_boolean
2705 elf32_hppa_size_stubs
2706 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2707 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2708 asection * (*add_stub_section) (const char *, asection *),
2709 void (*layout_sections_again) (void))
2710 {
2711 bfd_size_type stub_group_size;
2712 bfd_boolean stubs_always_before_branch;
2713 bfd_boolean stub_changed;
2714 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2715
2716 if (htab == NULL)
2717 return FALSE;
2718
2719 /* Stash our params away. */
2720 htab->stub_bfd = stub_bfd;
2721 htab->multi_subspace = multi_subspace;
2722 htab->add_stub_section = add_stub_section;
2723 htab->layout_sections_again = layout_sections_again;
2724 stubs_always_before_branch = group_size < 0;
2725 if (group_size < 0)
2726 stub_group_size = -group_size;
2727 else
2728 stub_group_size = group_size;
2729 if (stub_group_size == 1)
2730 {
2731 /* Default values. */
2732 if (stubs_always_before_branch)
2733 {
2734 stub_group_size = 7680000;
2735 if (htab->has_17bit_branch || htab->multi_subspace)
2736 stub_group_size = 240000;
2737 if (htab->has_12bit_branch)
2738 stub_group_size = 7500;
2739 }
2740 else
2741 {
2742 stub_group_size = 6971392;
2743 if (htab->has_17bit_branch || htab->multi_subspace)
2744 stub_group_size = 217856;
2745 if (htab->has_12bit_branch)
2746 stub_group_size = 6808;
2747 }
2748 }
2749
2750 group_sections (htab, stub_group_size, stubs_always_before_branch);
2751
2752 switch (get_local_syms (output_bfd, info->input_bfds, info))
2753 {
2754 default:
2755 if (htab->all_local_syms)
2756 goto error_ret_free_local;
2757 return FALSE;
2758
2759 case 0:
2760 stub_changed = FALSE;
2761 break;
2762
2763 case 1:
2764 stub_changed = TRUE;
2765 break;
2766 }
2767
2768 while (1)
2769 {
2770 bfd *input_bfd;
2771 unsigned int bfd_indx;
2772 asection *stub_sec;
2773
2774 for (input_bfd = info->input_bfds, bfd_indx = 0;
2775 input_bfd != NULL;
2776 input_bfd = input_bfd->link.next, bfd_indx++)
2777 {
2778 Elf_Internal_Shdr *symtab_hdr;
2779 asection *section;
2780 Elf_Internal_Sym *local_syms;
2781
2782 /* We'll need the symbol table in a second. */
2783 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2784 if (symtab_hdr->sh_info == 0)
2785 continue;
2786
2787 local_syms = htab->all_local_syms[bfd_indx];
2788
2789 /* Walk over each section attached to the input bfd. */
2790 for (section = input_bfd->sections;
2791 section != NULL;
2792 section = section->next)
2793 {
2794 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2795
2796 /* If there aren't any relocs, then there's nothing more
2797 to do. */
2798 if ((section->flags & SEC_RELOC) == 0
2799 || (section->flags & SEC_ALLOC) == 0
2800 || (section->flags & SEC_LOAD) == 0
2801 || (section->flags & SEC_CODE) == 0
2802 || section->reloc_count == 0)
2803 continue;
2804
2805 /* If this section is a link-once section that will be
2806 discarded, then don't create any stubs. */
2807 if (section->output_section == NULL
2808 || section->output_section->owner != output_bfd)
2809 continue;
2810
2811 /* Get the relocs. */
2812 internal_relocs
2813 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2814 info->keep_memory);
2815 if (internal_relocs == NULL)
2816 goto error_ret_free_local;
2817
2818 /* Now examine each relocation. */
2819 irela = internal_relocs;
2820 irelaend = irela + section->reloc_count;
2821 for (; irela < irelaend; irela++)
2822 {
2823 unsigned int r_type, r_indx;
2824 enum elf32_hppa_stub_type stub_type;
2825 struct elf32_hppa_stub_hash_entry *hsh;
2826 asection *sym_sec;
2827 bfd_vma sym_value;
2828 bfd_vma destination;
2829 struct elf32_hppa_link_hash_entry *hh;
2830 char *stub_name;
2831 const asection *id_sec;
2832
2833 r_type = ELF32_R_TYPE (irela->r_info);
2834 r_indx = ELF32_R_SYM (irela->r_info);
2835
2836 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2837 {
2838 bfd_set_error (bfd_error_bad_value);
2839 error_ret_free_internal:
2840 if (elf_section_data (section)->relocs == NULL)
2841 free (internal_relocs);
2842 goto error_ret_free_local;
2843 }
2844
2845 /* Only look for stubs on call instructions. */
2846 if (r_type != (unsigned int) R_PARISC_PCREL12F
2847 && r_type != (unsigned int) R_PARISC_PCREL17F
2848 && r_type != (unsigned int) R_PARISC_PCREL22F)
2849 continue;
2850
2851 /* Now determine the call target, its name, value,
2852 section. */
2853 sym_sec = NULL;
2854 sym_value = 0;
2855 destination = -1;
2856 hh = NULL;
2857 if (r_indx < symtab_hdr->sh_info)
2858 {
2859 /* It's a local symbol. */
2860 Elf_Internal_Sym *sym;
2861 Elf_Internal_Shdr *hdr;
2862 unsigned int shndx;
2863
2864 sym = local_syms + r_indx;
2865 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2866 sym_value = sym->st_value;
2867 shndx = sym->st_shndx;
2868 if (shndx < elf_numsections (input_bfd))
2869 {
2870 hdr = elf_elfsections (input_bfd)[shndx];
2871 sym_sec = hdr->bfd_section;
2872 destination = (sym_value + irela->r_addend
2873 + sym_sec->output_offset
2874 + sym_sec->output_section->vma);
2875 }
2876 }
2877 else
2878 {
2879 /* It's an external symbol. */
2880 int e_indx;
2881
2882 e_indx = r_indx - symtab_hdr->sh_info;
2883 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2884
2885 while (hh->eh.root.type == bfd_link_hash_indirect
2886 || hh->eh.root.type == bfd_link_hash_warning)
2887 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2888
2889 if (hh->eh.root.type == bfd_link_hash_defined
2890 || hh->eh.root.type == bfd_link_hash_defweak)
2891 {
2892 sym_sec = hh->eh.root.u.def.section;
2893 sym_value = hh->eh.root.u.def.value;
2894 if (sym_sec->output_section != NULL)
2895 destination = (sym_value + irela->r_addend
2896 + sym_sec->output_offset
2897 + sym_sec->output_section->vma);
2898 }
2899 else if (hh->eh.root.type == bfd_link_hash_undefweak)
2900 {
2901 if (! bfd_link_pic (info))
2902 continue;
2903 }
2904 else if (hh->eh.root.type == bfd_link_hash_undefined)
2905 {
2906 if (! (info->unresolved_syms_in_objects == RM_IGNORE
2907 && (ELF_ST_VISIBILITY (hh->eh.other)
2908 == STV_DEFAULT)
2909 && hh->eh.type != STT_PARISC_MILLI))
2910 continue;
2911 }
2912 else
2913 {
2914 bfd_set_error (bfd_error_bad_value);
2915 goto error_ret_free_internal;
2916 }
2917 }
2918
2919 /* Determine what (if any) linker stub is needed. */
2920 stub_type = hppa_type_of_stub (section, irela, hh,
2921 destination, info);
2922 if (stub_type == hppa_stub_none)
2923 continue;
2924
2925 /* Support for grouping stub sections. */
2926 id_sec = htab->stub_group[section->id].link_sec;
2927
2928 /* Get the name of this stub. */
2929 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
2930 if (!stub_name)
2931 goto error_ret_free_internal;
2932
2933 hsh = hppa_stub_hash_lookup (&htab->bstab,
2934 stub_name,
2935 FALSE, FALSE);
2936 if (hsh != NULL)
2937 {
2938 /* The proper stub has already been created. */
2939 free (stub_name);
2940 continue;
2941 }
2942
2943 hsh = hppa_add_stub (stub_name, section, htab);
2944 if (hsh == NULL)
2945 {
2946 free (stub_name);
2947 goto error_ret_free_internal;
2948 }
2949
2950 hsh->target_value = sym_value;
2951 hsh->target_section = sym_sec;
2952 hsh->stub_type = stub_type;
2953 if (bfd_link_pic (info))
2954 {
2955 if (stub_type == hppa_stub_import)
2956 hsh->stub_type = hppa_stub_import_shared;
2957 else if (stub_type == hppa_stub_long_branch)
2958 hsh->stub_type = hppa_stub_long_branch_shared;
2959 }
2960 hsh->hh = hh;
2961 stub_changed = TRUE;
2962 }
2963
2964 /* We're done with the internal relocs, free them. */
2965 if (elf_section_data (section)->relocs == NULL)
2966 free (internal_relocs);
2967 }
2968 }
2969
2970 if (!stub_changed)
2971 break;
2972
2973 /* OK, we've added some stubs. Find out the new size of the
2974 stub sections. */
2975 for (stub_sec = htab->stub_bfd->sections;
2976 stub_sec != NULL;
2977 stub_sec = stub_sec->next)
2978 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
2979 stub_sec->size = 0;
2980
2981 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
2982
2983 /* Ask the linker to do its stuff. */
2984 (*htab->layout_sections_again) ();
2985 stub_changed = FALSE;
2986 }
2987
2988 free (htab->all_local_syms);
2989 return TRUE;
2990
2991 error_ret_free_local:
2992 free (htab->all_local_syms);
2993 return FALSE;
2994 }
2995
2996 /* For a final link, this function is called after we have sized the
2997 stubs to provide a value for __gp. */
2998
2999 bfd_boolean
3000 elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
3001 {
3002 struct bfd_link_hash_entry *h;
3003 asection *sec = NULL;
3004 bfd_vma gp_val = 0;
3005
3006 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
3007
3008 if (h != NULL
3009 && (h->type == bfd_link_hash_defined
3010 || h->type == bfd_link_hash_defweak))
3011 {
3012 gp_val = h->u.def.value;
3013 sec = h->u.def.section;
3014 }
3015 else
3016 {
3017 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3018 asection *sgot = bfd_get_section_by_name (abfd, ".got");
3019
3020 /* Choose to point our LTP at, in this order, one of .plt, .got,
3021 or .data, if these sections exist. In the case of choosing
3022 .plt try to make the LTP ideal for addressing anywhere in the
3023 .plt or .got with a 14 bit signed offset. Typically, the end
3024 of the .plt is the start of the .got, so choose .plt + 0x2000
3025 if either the .plt or .got is larger than 0x2000. If both
3026 the .plt and .got are smaller than 0x2000, choose the end of
3027 the .plt section. */
3028 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3029 ? NULL : splt;
3030 if (sec != NULL)
3031 {
3032 gp_val = sec->size;
3033 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
3034 {
3035 gp_val = 0x2000;
3036 }
3037 }
3038 else
3039 {
3040 sec = sgot;
3041 if (sec != NULL)
3042 {
3043 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3044 {
3045 /* We know we don't have a .plt. If .got is large,
3046 offset our LTP. */
3047 if (sec->size > 0x2000)
3048 gp_val = 0x2000;
3049 }
3050 }
3051 else
3052 {
3053 /* No .plt or .got. Who cares what the LTP is? */
3054 sec = bfd_get_section_by_name (abfd, ".data");
3055 }
3056 }
3057
3058 if (h != NULL)
3059 {
3060 h->type = bfd_link_hash_defined;
3061 h->u.def.value = gp_val;
3062 if (sec != NULL)
3063 h->u.def.section = sec;
3064 else
3065 h->u.def.section = bfd_abs_section_ptr;
3066 }
3067 }
3068
3069 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3070 {
3071 if (sec != NULL && sec->output_section != NULL)
3072 gp_val += sec->output_section->vma + sec->output_offset;
3073
3074 elf_gp (abfd) = gp_val;
3075 }
3076 return TRUE;
3077 }
3078
3079 /* Build all the stubs associated with the current output file. The
3080 stubs are kept in a hash table attached to the main linker hash
3081 table. We also set up the .plt entries for statically linked PIC
3082 functions here. This function is called via hppaelf_finish in the
3083 linker. */
3084
3085 bfd_boolean
3086 elf32_hppa_build_stubs (struct bfd_link_info *info)
3087 {
3088 asection *stub_sec;
3089 struct bfd_hash_table *table;
3090 struct elf32_hppa_link_hash_table *htab;
3091
3092 htab = hppa_link_hash_table (info);
3093 if (htab == NULL)
3094 return FALSE;
3095
3096 for (stub_sec = htab->stub_bfd->sections;
3097 stub_sec != NULL;
3098 stub_sec = stub_sec->next)
3099 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3100 && stub_sec->size != 0)
3101 {
3102 /* Allocate memory to hold the linker stubs. */
3103 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3104 if (stub_sec->contents == NULL)
3105 return FALSE;
3106 stub_sec->size = 0;
3107 }
3108
3109 /* Build the stubs as directed by the stub hash table. */
3110 table = &htab->bstab;
3111 bfd_hash_traverse (table, hppa_build_one_stub, info);
3112
3113 return TRUE;
3114 }
3115
3116 /* Return the base vma address which should be subtracted from the real
3117 address when resolving a dtpoff relocation.
3118 This is PT_TLS segment p_vaddr. */
3119
3120 static bfd_vma
3121 dtpoff_base (struct bfd_link_info *info)
3122 {
3123 /* If tls_sec is NULL, we should have signalled an error already. */
3124 if (elf_hash_table (info)->tls_sec == NULL)
3125 return 0;
3126 return elf_hash_table (info)->tls_sec->vma;
3127 }
3128
3129 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3130
3131 static bfd_vma
3132 tpoff (struct bfd_link_info *info, bfd_vma address)
3133 {
3134 struct elf_link_hash_table *htab = elf_hash_table (info);
3135
3136 /* If tls_sec is NULL, we should have signalled an error already. */
3137 if (htab->tls_sec == NULL)
3138 return 0;
3139 /* hppa TLS ABI is variant I and static TLS block start just after
3140 tcbhead structure which has 2 pointer fields. */
3141 return (address - htab->tls_sec->vma
3142 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3143 }
3144
3145 /* Perform a final link. */
3146
3147 static bfd_boolean
3148 elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3149 {
3150 struct stat buf;
3151
3152 /* Invoke the regular ELF linker to do all the work. */
3153 if (!bfd_elf_final_link (abfd, info))
3154 return FALSE;
3155
3156 /* If we're producing a final executable, sort the contents of the
3157 unwind section. */
3158 if (bfd_link_relocatable (info))
3159 return TRUE;
3160
3161 /* Do not attempt to sort non-regular files. This is here
3162 especially for configure scripts and kernel builds which run
3163 tests with "ld [...] -o /dev/null". */
3164 if (stat (abfd->filename, &buf) != 0
3165 || !S_ISREG(buf.st_mode))
3166 return TRUE;
3167
3168 return elf_hppa_sort_unwind (abfd);
3169 }
3170
3171 /* Record the lowest address for the data and text segments. */
3172
3173 static void
3174 hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3175 {
3176 struct elf32_hppa_link_hash_table *htab;
3177
3178 htab = (struct elf32_hppa_link_hash_table*) data;
3179 if (htab == NULL)
3180 return;
3181
3182 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3183 {
3184 bfd_vma value;
3185 Elf_Internal_Phdr *p;
3186
3187 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3188 BFD_ASSERT (p != NULL);
3189 value = p->p_vaddr;
3190
3191 if ((section->flags & SEC_READONLY) != 0)
3192 {
3193 if (value < htab->text_segment_base)
3194 htab->text_segment_base = value;
3195 }
3196 else
3197 {
3198 if (value < htab->data_segment_base)
3199 htab->data_segment_base = value;
3200 }
3201 }
3202 }
3203
3204 /* Perform a relocation as part of a final link. */
3205
3206 static bfd_reloc_status_type
3207 final_link_relocate (asection *input_section,
3208 bfd_byte *contents,
3209 const Elf_Internal_Rela *rela,
3210 bfd_vma value,
3211 struct elf32_hppa_link_hash_table *htab,
3212 asection *sym_sec,
3213 struct elf32_hppa_link_hash_entry *hh,
3214 struct bfd_link_info *info)
3215 {
3216 int insn;
3217 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3218 unsigned int orig_r_type = r_type;
3219 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3220 int r_format = howto->bitsize;
3221 enum hppa_reloc_field_selector_type_alt r_field;
3222 bfd *input_bfd = input_section->owner;
3223 bfd_vma offset = rela->r_offset;
3224 bfd_vma max_branch_offset = 0;
3225 bfd_byte *hit_data = contents + offset;
3226 bfd_signed_vma addend = rela->r_addend;
3227 bfd_vma location;
3228 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3229 int val;
3230
3231 if (r_type == R_PARISC_NONE)
3232 return bfd_reloc_ok;
3233
3234 insn = bfd_get_32 (input_bfd, hit_data);
3235
3236 /* Find out where we are and where we're going. */
3237 location = (offset +
3238 input_section->output_offset +
3239 input_section->output_section->vma);
3240
3241 /* If we are not building a shared library, convert DLTIND relocs to
3242 DPREL relocs. */
3243 if (!bfd_link_pic (info))
3244 {
3245 switch (r_type)
3246 {
3247 case R_PARISC_DLTIND21L:
3248 case R_PARISC_TLS_GD21L:
3249 case R_PARISC_TLS_LDM21L:
3250 case R_PARISC_TLS_IE21L:
3251 r_type = R_PARISC_DPREL21L;
3252 break;
3253
3254 case R_PARISC_DLTIND14R:
3255 case R_PARISC_TLS_GD14R:
3256 case R_PARISC_TLS_LDM14R:
3257 case R_PARISC_TLS_IE14R:
3258 r_type = R_PARISC_DPREL14R;
3259 break;
3260
3261 case R_PARISC_DLTIND14F:
3262 r_type = R_PARISC_DPREL14F;
3263 break;
3264 }
3265 }
3266
3267 switch (r_type)
3268 {
3269 case R_PARISC_PCREL12F:
3270 case R_PARISC_PCREL17F:
3271 case R_PARISC_PCREL22F:
3272 /* If this call should go via the plt, find the import stub in
3273 the stub hash. */
3274 if (sym_sec == NULL
3275 || sym_sec->output_section == NULL
3276 || (hh != NULL
3277 && hh->eh.plt.offset != (bfd_vma) -1
3278 && hh->eh.dynindx != -1
3279 && !hh->plabel
3280 && (bfd_link_pic (info)
3281 || !hh->eh.def_regular
3282 || hh->eh.root.type == bfd_link_hash_defweak)))
3283 {
3284 hsh = hppa_get_stub_entry (input_section, sym_sec,
3285 hh, rela, htab);
3286 if (hsh != NULL)
3287 {
3288 value = (hsh->stub_offset
3289 + hsh->stub_sec->output_offset
3290 + hsh->stub_sec->output_section->vma);
3291 addend = 0;
3292 }
3293 else if (sym_sec == NULL && hh != NULL
3294 && hh->eh.root.type == bfd_link_hash_undefweak)
3295 {
3296 /* It's OK if undefined weak. Calls to undefined weak
3297 symbols behave as if the "called" function
3298 immediately returns. We can thus call to a weak
3299 function without first checking whether the function
3300 is defined. */
3301 value = location;
3302 addend = 8;
3303 }
3304 else
3305 return bfd_reloc_undefined;
3306 }
3307 /* Fall thru. */
3308
3309 case R_PARISC_PCREL21L:
3310 case R_PARISC_PCREL17C:
3311 case R_PARISC_PCREL17R:
3312 case R_PARISC_PCREL14R:
3313 case R_PARISC_PCREL14F:
3314 case R_PARISC_PCREL32:
3315 /* Make it a pc relative offset. */
3316 value -= location;
3317 addend -= 8;
3318 break;
3319
3320 case R_PARISC_DPREL21L:
3321 case R_PARISC_DPREL14R:
3322 case R_PARISC_DPREL14F:
3323 /* Convert instructions that use the linkage table pointer (r19) to
3324 instructions that use the global data pointer (dp). This is the
3325 most efficient way of using PIC code in an incomplete executable,
3326 but the user must follow the standard runtime conventions for
3327 accessing data for this to work. */
3328 if (orig_r_type != r_type)
3329 {
3330 if (r_type == R_PARISC_DPREL21L)
3331 {
3332 /* GCC sometimes uses a register other than r19 for the
3333 operation, so we must convert any addil instruction
3334 that uses this relocation. */
3335 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3336 insn = ADDIL_DP;
3337 else
3338 /* We must have a ldil instruction. It's too hard to find
3339 and convert the associated add instruction, so issue an
3340 error. */
3341 _bfd_error_handler
3342 /* xgettext:c-format */
3343 (_("%pB(%pA+%#" PRIx64 "): %s fixup for insn %#x "
3344 "is not supported in a non-shared link"),
3345 input_bfd,
3346 input_section,
3347 (uint64_t) offset,
3348 howto->name,
3349 insn);
3350 }
3351 else if (r_type == R_PARISC_DPREL14F)
3352 {
3353 /* This must be a format 1 load/store. Change the base
3354 register to dp. */
3355 insn = (insn & 0xfc1ffff) | (27 << 21);
3356 }
3357 }
3358
3359 /* For all the DP relative relocations, we need to examine the symbol's
3360 section. If it has no section or if it's a code section, then
3361 "data pointer relative" makes no sense. In that case we don't
3362 adjust the "value", and for 21 bit addil instructions, we change the
3363 source addend register from %dp to %r0. This situation commonly
3364 arises for undefined weak symbols and when a variable's "constness"
3365 is declared differently from the way the variable is defined. For
3366 instance: "extern int foo" with foo defined as "const int foo". */
3367 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3368 {
3369 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3370 == (((int) OP_ADDIL << 26) | (27 << 21)))
3371 {
3372 insn &= ~ (0x1f << 21);
3373 }
3374 /* Now try to make things easy for the dynamic linker. */
3375
3376 break;
3377 }
3378 /* Fall thru. */
3379
3380 case R_PARISC_DLTIND21L:
3381 case R_PARISC_DLTIND14R:
3382 case R_PARISC_DLTIND14F:
3383 case R_PARISC_TLS_GD21L:
3384 case R_PARISC_TLS_LDM21L:
3385 case R_PARISC_TLS_IE21L:
3386 case R_PARISC_TLS_GD14R:
3387 case R_PARISC_TLS_LDM14R:
3388 case R_PARISC_TLS_IE14R:
3389 value -= elf_gp (input_section->output_section->owner);
3390 break;
3391
3392 case R_PARISC_SEGREL32:
3393 if ((sym_sec->flags & SEC_CODE) != 0)
3394 value -= htab->text_segment_base;
3395 else
3396 value -= htab->data_segment_base;
3397 break;
3398
3399 default:
3400 break;
3401 }
3402
3403 switch (r_type)
3404 {
3405 case R_PARISC_DIR32:
3406 case R_PARISC_DIR14F:
3407 case R_PARISC_DIR17F:
3408 case R_PARISC_PCREL17C:
3409 case R_PARISC_PCREL14F:
3410 case R_PARISC_PCREL32:
3411 case R_PARISC_DPREL14F:
3412 case R_PARISC_PLABEL32:
3413 case R_PARISC_DLTIND14F:
3414 case R_PARISC_SEGBASE:
3415 case R_PARISC_SEGREL32:
3416 case R_PARISC_TLS_DTPMOD32:
3417 case R_PARISC_TLS_DTPOFF32:
3418 case R_PARISC_TLS_TPREL32:
3419 r_field = e_fsel;
3420 break;
3421
3422 case R_PARISC_DLTIND21L:
3423 case R_PARISC_PCREL21L:
3424 case R_PARISC_PLABEL21L:
3425 r_field = e_lsel;
3426 break;
3427
3428 case R_PARISC_DIR21L:
3429 case R_PARISC_DPREL21L:
3430 case R_PARISC_TLS_GD21L:
3431 case R_PARISC_TLS_LDM21L:
3432 case R_PARISC_TLS_LDO21L:
3433 case R_PARISC_TLS_IE21L:
3434 case R_PARISC_TLS_LE21L:
3435 r_field = e_lrsel;
3436 break;
3437
3438 case R_PARISC_PCREL17R:
3439 case R_PARISC_PCREL14R:
3440 case R_PARISC_PLABEL14R:
3441 case R_PARISC_DLTIND14R:
3442 r_field = e_rsel;
3443 break;
3444
3445 case R_PARISC_DIR17R:
3446 case R_PARISC_DIR14R:
3447 case R_PARISC_DPREL14R:
3448 case R_PARISC_TLS_GD14R:
3449 case R_PARISC_TLS_LDM14R:
3450 case R_PARISC_TLS_LDO14R:
3451 case R_PARISC_TLS_IE14R:
3452 case R_PARISC_TLS_LE14R:
3453 r_field = e_rrsel;
3454 break;
3455
3456 case R_PARISC_PCREL12F:
3457 case R_PARISC_PCREL17F:
3458 case R_PARISC_PCREL22F:
3459 r_field = e_fsel;
3460
3461 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3462 {
3463 max_branch_offset = (1 << (17-1)) << 2;
3464 }
3465 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3466 {
3467 max_branch_offset = (1 << (12-1)) << 2;
3468 }
3469 else
3470 {
3471 max_branch_offset = (1 << (22-1)) << 2;
3472 }
3473
3474 /* sym_sec is NULL on undefined weak syms or when shared on
3475 undefined syms. We've already checked for a stub for the
3476 shared undefined case. */
3477 if (sym_sec == NULL)
3478 break;
3479
3480 /* If the branch is out of reach, then redirect the
3481 call to the local stub for this function. */
3482 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3483 {
3484 hsh = hppa_get_stub_entry (input_section, sym_sec,
3485 hh, rela, htab);
3486 if (hsh == NULL)
3487 return bfd_reloc_undefined;
3488
3489 /* Munge up the value and addend so that we call the stub
3490 rather than the procedure directly. */
3491 value = (hsh->stub_offset
3492 + hsh->stub_sec->output_offset
3493 + hsh->stub_sec->output_section->vma
3494 - location);
3495 addend = -8;
3496 }
3497 break;
3498
3499 /* Something we don't know how to handle. */
3500 default:
3501 return bfd_reloc_notsupported;
3502 }
3503
3504 /* Make sure we can reach the stub. */
3505 if (max_branch_offset != 0
3506 && value + addend + max_branch_offset >= 2*max_branch_offset)
3507 {
3508 _bfd_error_handler
3509 /* xgettext:c-format */
3510 (_("%pB(%pA+%#" PRIx64 "): cannot reach %s, "
3511 "recompile with -ffunction-sections"),
3512 input_bfd,
3513 input_section,
3514 (uint64_t) offset,
3515 hsh->bh_root.string);
3516 bfd_set_error (bfd_error_bad_value);
3517 return bfd_reloc_notsupported;
3518 }
3519
3520 val = hppa_field_adjust (value, addend, r_field);
3521
3522 switch (r_type)
3523 {
3524 case R_PARISC_PCREL12F:
3525 case R_PARISC_PCREL17C:
3526 case R_PARISC_PCREL17F:
3527 case R_PARISC_PCREL17R:
3528 case R_PARISC_PCREL22F:
3529 case R_PARISC_DIR17F:
3530 case R_PARISC_DIR17R:
3531 /* This is a branch. Divide the offset by four.
3532 Note that we need to decide whether it's a branch or
3533 otherwise by inspecting the reloc. Inspecting insn won't
3534 work as insn might be from a .word directive. */
3535 val >>= 2;
3536 break;
3537
3538 default:
3539 break;
3540 }
3541
3542 insn = hppa_rebuild_insn (insn, val, r_format);
3543
3544 /* Update the instruction word. */
3545 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3546 return bfd_reloc_ok;
3547 }
3548
3549 /* Relocate an HPPA ELF section. */
3550
3551 static bfd_boolean
3552 elf32_hppa_relocate_section (bfd *output_bfd,
3553 struct bfd_link_info *info,
3554 bfd *input_bfd,
3555 asection *input_section,
3556 bfd_byte *contents,
3557 Elf_Internal_Rela *relocs,
3558 Elf_Internal_Sym *local_syms,
3559 asection **local_sections)
3560 {
3561 bfd_vma *local_got_offsets;
3562 struct elf32_hppa_link_hash_table *htab;
3563 Elf_Internal_Shdr *symtab_hdr;
3564 Elf_Internal_Rela *rela;
3565 Elf_Internal_Rela *relend;
3566
3567 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3568
3569 htab = hppa_link_hash_table (info);
3570 if (htab == NULL)
3571 return FALSE;
3572
3573 local_got_offsets = elf_local_got_offsets (input_bfd);
3574
3575 rela = relocs;
3576 relend = relocs + input_section->reloc_count;
3577 for (; rela < relend; rela++)
3578 {
3579 unsigned int r_type;
3580 reloc_howto_type *howto;
3581 unsigned int r_symndx;
3582 struct elf32_hppa_link_hash_entry *hh;
3583 Elf_Internal_Sym *sym;
3584 asection *sym_sec;
3585 bfd_vma relocation;
3586 bfd_reloc_status_type rstatus;
3587 const char *sym_name;
3588 bfd_boolean plabel;
3589 bfd_boolean warned_undef;
3590
3591 r_type = ELF32_R_TYPE (rela->r_info);
3592 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3593 {
3594 bfd_set_error (bfd_error_bad_value);
3595 return FALSE;
3596 }
3597 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3598 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3599 continue;
3600
3601 r_symndx = ELF32_R_SYM (rela->r_info);
3602 hh = NULL;
3603 sym = NULL;
3604 sym_sec = NULL;
3605 warned_undef = FALSE;
3606 if (r_symndx < symtab_hdr->sh_info)
3607 {
3608 /* This is a local symbol, h defaults to NULL. */
3609 sym = local_syms + r_symndx;
3610 sym_sec = local_sections[r_symndx];
3611 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3612 }
3613 else
3614 {
3615 struct elf_link_hash_entry *eh;
3616 bfd_boolean unresolved_reloc, ignored;
3617 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3618
3619 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3620 r_symndx, symtab_hdr, sym_hashes,
3621 eh, sym_sec, relocation,
3622 unresolved_reloc, warned_undef,
3623 ignored);
3624
3625 if (!bfd_link_relocatable (info)
3626 && relocation == 0
3627 && eh->root.type != bfd_link_hash_defined
3628 && eh->root.type != bfd_link_hash_defweak
3629 && eh->root.type != bfd_link_hash_undefweak)
3630 {
3631 if (info->unresolved_syms_in_objects == RM_IGNORE
3632 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3633 && eh->type == STT_PARISC_MILLI)
3634 {
3635 (*info->callbacks->undefined_symbol)
3636 (info, eh_name (eh), input_bfd,
3637 input_section, rela->r_offset, FALSE);
3638 warned_undef = TRUE;
3639 }
3640 }
3641 hh = hppa_elf_hash_entry (eh);
3642 }
3643
3644 if (sym_sec != NULL && discarded_section (sym_sec))
3645 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3646 rela, 1, relend,
3647 elf_hppa_howto_table + r_type, 0,
3648 contents);
3649
3650 if (bfd_link_relocatable (info))
3651 continue;
3652
3653 /* Do any required modifications to the relocation value, and
3654 determine what types of dynamic info we need to output, if
3655 any. */
3656 plabel = 0;
3657 switch (r_type)
3658 {
3659 case R_PARISC_DLTIND14F:
3660 case R_PARISC_DLTIND14R:
3661 case R_PARISC_DLTIND21L:
3662 {
3663 bfd_vma off;
3664 bfd_boolean do_got = FALSE;
3665 bfd_boolean reloc = bfd_link_pic (info);
3666
3667 /* Relocation is to the entry for this symbol in the
3668 global offset table. */
3669 if (hh != NULL)
3670 {
3671 bfd_boolean dyn;
3672
3673 off = hh->eh.got.offset;
3674 dyn = htab->etab.dynamic_sections_created;
3675 reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)
3676 && (reloc
3677 || (hh->eh.dynindx != -1
3678 && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))));
3679 if (!reloc
3680 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3681 bfd_link_pic (info),
3682 &hh->eh))
3683 {
3684 /* If we aren't going to call finish_dynamic_symbol,
3685 then we need to handle initialisation of the .got
3686 entry and create needed relocs here. Since the
3687 offset must always be a multiple of 4, we use the
3688 least significant bit to record whether we have
3689 initialised it already. */
3690 if ((off & 1) != 0)
3691 off &= ~1;
3692 else
3693 {
3694 hh->eh.got.offset |= 1;
3695 do_got = TRUE;
3696 }
3697 }
3698 }
3699 else
3700 {
3701 /* Local symbol case. */
3702 if (local_got_offsets == NULL)
3703 abort ();
3704
3705 off = local_got_offsets[r_symndx];
3706
3707 /* The offset must always be a multiple of 4. We use
3708 the least significant bit to record whether we have
3709 already generated the necessary reloc. */
3710 if ((off & 1) != 0)
3711 off &= ~1;
3712 else
3713 {
3714 local_got_offsets[r_symndx] |= 1;
3715 do_got = TRUE;
3716 }
3717 }
3718
3719 if (do_got)
3720 {
3721 if (reloc)
3722 {
3723 /* Output a dynamic relocation for this GOT entry.
3724 In this case it is relative to the base of the
3725 object because the symbol index is zero. */
3726 Elf_Internal_Rela outrel;
3727 bfd_byte *loc;
3728 asection *sec = htab->etab.srelgot;
3729
3730 outrel.r_offset = (off
3731 + htab->etab.sgot->output_offset
3732 + htab->etab.sgot->output_section->vma);
3733 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3734 outrel.r_addend = relocation;
3735 loc = sec->contents;
3736 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3737 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3738 }
3739 else
3740 bfd_put_32 (output_bfd, relocation,
3741 htab->etab.sgot->contents + off);
3742 }
3743
3744 if (off >= (bfd_vma) -2)
3745 abort ();
3746
3747 /* Add the base of the GOT to the relocation value. */
3748 relocation = (off
3749 + htab->etab.sgot->output_offset
3750 + htab->etab.sgot->output_section->vma);
3751 }
3752 break;
3753
3754 case R_PARISC_SEGREL32:
3755 /* If this is the first SEGREL relocation, then initialize
3756 the segment base values. */
3757 if (htab->text_segment_base == (bfd_vma) -1)
3758 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3759 break;
3760
3761 case R_PARISC_PLABEL14R:
3762 case R_PARISC_PLABEL21L:
3763 case R_PARISC_PLABEL32:
3764 if (htab->etab.dynamic_sections_created)
3765 {
3766 bfd_vma off;
3767 bfd_boolean do_plt = 0;
3768 /* If we have a global symbol with a PLT slot, then
3769 redirect this relocation to it. */
3770 if (hh != NULL)
3771 {
3772 off = hh->eh.plt.offset;
3773 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3774 bfd_link_pic (info),
3775 &hh->eh))
3776 {
3777 /* In a non-shared link, adjust_dynamic_symbol
3778 isn't called for symbols forced local. We
3779 need to write out the plt entry here. */
3780 if ((off & 1) != 0)
3781 off &= ~1;
3782 else
3783 {
3784 hh->eh.plt.offset |= 1;
3785 do_plt = 1;
3786 }
3787 }
3788 }
3789 else
3790 {
3791 bfd_vma *local_plt_offsets;
3792
3793 if (local_got_offsets == NULL)
3794 abort ();
3795
3796 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3797 off = local_plt_offsets[r_symndx];
3798
3799 /* As for the local .got entry case, we use the last
3800 bit to record whether we've already initialised
3801 this local .plt entry. */
3802 if ((off & 1) != 0)
3803 off &= ~1;
3804 else
3805 {
3806 local_plt_offsets[r_symndx] |= 1;
3807 do_plt = 1;
3808 }
3809 }
3810
3811 if (do_plt)
3812 {
3813 if (bfd_link_pic (info))
3814 {
3815 /* Output a dynamic IPLT relocation for this
3816 PLT entry. */
3817 Elf_Internal_Rela outrel;
3818 bfd_byte *loc;
3819 asection *s = htab->etab.srelplt;
3820
3821 outrel.r_offset = (off
3822 + htab->etab.splt->output_offset
3823 + htab->etab.splt->output_section->vma);
3824 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3825 outrel.r_addend = relocation;
3826 loc = s->contents;
3827 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3828 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3829 }
3830 else
3831 {
3832 bfd_put_32 (output_bfd,
3833 relocation,
3834 htab->etab.splt->contents + off);
3835 bfd_put_32 (output_bfd,
3836 elf_gp (htab->etab.splt->output_section->owner),
3837 htab->etab.splt->contents + off + 4);
3838 }
3839 }
3840
3841 if (off >= (bfd_vma) -2)
3842 abort ();
3843
3844 /* PLABELs contain function pointers. Relocation is to
3845 the entry for the function in the .plt. The magic +2
3846 offset signals to $$dyncall that the function pointer
3847 is in the .plt and thus has a gp pointer too.
3848 Exception: Undefined PLABELs should have a value of
3849 zero. */
3850 if (hh == NULL
3851 || (hh->eh.root.type != bfd_link_hash_undefweak
3852 && hh->eh.root.type != bfd_link_hash_undefined))
3853 {
3854 relocation = (off
3855 + htab->etab.splt->output_offset
3856 + htab->etab.splt->output_section->vma
3857 + 2);
3858 }
3859 plabel = 1;
3860 }
3861 /* Fall through. */
3862
3863 case R_PARISC_DIR17F:
3864 case R_PARISC_DIR17R:
3865 case R_PARISC_DIR14F:
3866 case R_PARISC_DIR14R:
3867 case R_PARISC_DIR21L:
3868 case R_PARISC_DPREL14F:
3869 case R_PARISC_DPREL14R:
3870 case R_PARISC_DPREL21L:
3871 case R_PARISC_DIR32:
3872 if ((input_section->flags & SEC_ALLOC) == 0)
3873 break;
3874
3875 if (bfd_link_pic (info)
3876 ? ((hh == NULL
3877 || hh->dyn_relocs != NULL)
3878 && ((hh != NULL && pc_dynrelocs (hh))
3879 || IS_ABSOLUTE_RELOC (r_type)))
3880 : (hh != NULL
3881 && hh->dyn_relocs != NULL))
3882 {
3883 Elf_Internal_Rela outrel;
3884 bfd_boolean skip;
3885 asection *sreloc;
3886 bfd_byte *loc;
3887
3888 /* When generating a shared object, these relocations
3889 are copied into the output file to be resolved at run
3890 time. */
3891
3892 outrel.r_addend = rela->r_addend;
3893 outrel.r_offset =
3894 _bfd_elf_section_offset (output_bfd, info, input_section,
3895 rela->r_offset);
3896 skip = (outrel.r_offset == (bfd_vma) -1
3897 || outrel.r_offset == (bfd_vma) -2);
3898 outrel.r_offset += (input_section->output_offset
3899 + input_section->output_section->vma);
3900
3901 if (skip)
3902 {
3903 memset (&outrel, 0, sizeof (outrel));
3904 }
3905 else if (hh != NULL
3906 && hh->eh.dynindx != -1
3907 && (plabel
3908 || !IS_ABSOLUTE_RELOC (r_type)
3909 || !bfd_link_pic (info)
3910 || !SYMBOLIC_BIND (info, &hh->eh)
3911 || !hh->eh.def_regular))
3912 {
3913 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
3914 }
3915 else /* It's a local symbol, or one marked to become local. */
3916 {
3917 int indx = 0;
3918
3919 /* Add the absolute offset of the symbol. */
3920 outrel.r_addend += relocation;
3921
3922 /* Global plabels need to be processed by the
3923 dynamic linker so that functions have at most one
3924 fptr. For this reason, we need to differentiate
3925 between global and local plabels, which we do by
3926 providing the function symbol for a global plabel
3927 reloc, and no symbol for local plabels. */
3928 if (! plabel
3929 && sym_sec != NULL
3930 && sym_sec->output_section != NULL
3931 && ! bfd_is_abs_section (sym_sec))
3932 {
3933 asection *osec;
3934
3935 osec = sym_sec->output_section;
3936 indx = elf_section_data (osec)->dynindx;
3937 if (indx == 0)
3938 {
3939 osec = htab->etab.text_index_section;
3940 indx = elf_section_data (osec)->dynindx;
3941 }
3942 BFD_ASSERT (indx != 0);
3943
3944 /* We are turning this relocation into one
3945 against a section symbol, so subtract out the
3946 output section's address but not the offset
3947 of the input section in the output section. */
3948 outrel.r_addend -= osec->vma;
3949 }
3950
3951 outrel.r_info = ELF32_R_INFO (indx, r_type);
3952 }
3953 sreloc = elf_section_data (input_section)->sreloc;
3954 if (sreloc == NULL)
3955 abort ();
3956
3957 loc = sreloc->contents;
3958 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3959 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3960 }
3961 break;
3962
3963 case R_PARISC_TLS_LDM21L:
3964 case R_PARISC_TLS_LDM14R:
3965 {
3966 bfd_vma off;
3967
3968 off = htab->tls_ldm_got.offset;
3969 if (off & 1)
3970 off &= ~1;
3971 else
3972 {
3973 Elf_Internal_Rela outrel;
3974 bfd_byte *loc;
3975
3976 outrel.r_offset = (off
3977 + htab->etab.sgot->output_section->vma
3978 + htab->etab.sgot->output_offset);
3979 outrel.r_addend = 0;
3980 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
3981 loc = htab->etab.srelgot->contents;
3982 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3983
3984 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3985 htab->tls_ldm_got.offset |= 1;
3986 }
3987
3988 /* Add the base of the GOT to the relocation value. */
3989 relocation = (off
3990 + htab->etab.sgot->output_offset
3991 + htab->etab.sgot->output_section->vma);
3992
3993 break;
3994 }
3995
3996 case R_PARISC_TLS_LDO21L:
3997 case R_PARISC_TLS_LDO14R:
3998 relocation -= dtpoff_base (info);
3999 break;
4000
4001 case R_PARISC_TLS_GD21L:
4002 case R_PARISC_TLS_GD14R:
4003 case R_PARISC_TLS_IE21L:
4004 case R_PARISC_TLS_IE14R:
4005 {
4006 bfd_vma off;
4007 int indx;
4008 char tls_type;
4009
4010 indx = 0;
4011 if (hh != NULL)
4012 {
4013 if (!htab->etab.dynamic_sections_created
4014 || hh->eh.dynindx == -1
4015 || SYMBOL_REFERENCES_LOCAL (info, &hh->eh)
4016 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))
4017 /* This is actually a static link, or it is a
4018 -Bsymbolic link and the symbol is defined
4019 locally, or the symbol was forced to be local
4020 because of a version file. */
4021 ;
4022 else
4023 indx = hh->eh.dynindx;
4024 off = hh->eh.got.offset;
4025 tls_type = hh->tls_type;
4026 }
4027 else
4028 {
4029 off = local_got_offsets[r_symndx];
4030 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4031 }
4032
4033 if (tls_type == GOT_UNKNOWN)
4034 abort ();
4035
4036 if ((off & 1) != 0)
4037 off &= ~1;
4038 else
4039 {
4040 bfd_boolean need_relocs = FALSE;
4041 Elf_Internal_Rela outrel;
4042 bfd_byte *loc = NULL;
4043 int cur_off = off;
4044
4045 /* The GOT entries have not been initialized yet. Do it
4046 now, and emit any relocations. If both an IE GOT and a
4047 GD GOT are necessary, we emit the GD first. */
4048
4049 if (indx != 0
4050 || (bfd_link_dll (info)
4051 && (hh == NULL
4052 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))))
4053 {
4054 need_relocs = TRUE;
4055 loc = htab->etab.srelgot->contents;
4056 loc += (htab->etab.srelgot->reloc_count
4057 * sizeof (Elf32_External_Rela));
4058 }
4059
4060 if (tls_type & GOT_TLS_GD)
4061 {
4062 if (need_relocs)
4063 {
4064 outrel.r_offset
4065 = (cur_off
4066 + htab->etab.sgot->output_section->vma
4067 + htab->etab.sgot->output_offset);
4068 outrel.r_info
4069 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32);
4070 outrel.r_addend = 0;
4071 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4072 htab->etab.srelgot->reloc_count++;
4073 loc += sizeof (Elf32_External_Rela);
4074 bfd_put_32 (output_bfd, 0,
4075 htab->etab.sgot->contents + cur_off);
4076 }
4077 else
4078 /* If we are not emitting relocations for a
4079 general dynamic reference, then we must be in a
4080 static link or an executable link with the
4081 symbol binding locally. Mark it as belonging
4082 to module 1, the executable. */
4083 bfd_put_32 (output_bfd, 1,
4084 htab->etab.sgot->contents + cur_off);
4085
4086 if (indx != 0)
4087 {
4088 outrel.r_info
4089 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4090 outrel.r_offset += 4;
4091 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4092 htab->etab.srelgot->reloc_count++;
4093 loc += sizeof (Elf32_External_Rela);
4094 bfd_put_32 (output_bfd, 0,
4095 htab->etab.sgot->contents + cur_off + 4);
4096 }
4097 else
4098 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4099 htab->etab.sgot->contents + cur_off + 4);
4100 cur_off += 8;
4101 }
4102
4103 if (tls_type & GOT_TLS_IE)
4104 {
4105 if (need_relocs
4106 && !(bfd_link_executable (info)
4107 && SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4108 {
4109 outrel.r_offset
4110 = (cur_off
4111 + htab->etab.sgot->output_section->vma
4112 + htab->etab.sgot->output_offset);
4113 outrel.r_info = ELF32_R_INFO (indx,
4114 R_PARISC_TLS_TPREL32);
4115 if (indx == 0)
4116 outrel.r_addend = relocation - dtpoff_base (info);
4117 else
4118 outrel.r_addend = 0;
4119 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4120 htab->etab.srelgot->reloc_count++;
4121 loc += sizeof (Elf32_External_Rela);
4122 }
4123 else
4124 bfd_put_32 (output_bfd, tpoff (info, relocation),
4125 htab->etab.sgot->contents + cur_off);
4126 cur_off += 4;
4127 }
4128
4129 if (hh != NULL)
4130 hh->eh.got.offset |= 1;
4131 else
4132 local_got_offsets[r_symndx] |= 1;
4133 }
4134
4135 if ((tls_type & GOT_NORMAL) != 0
4136 && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0)
4137 {
4138 if (hh != NULL)
4139 _bfd_error_handler (_("%s has both normal and TLS relocs"),
4140 hh_name (hh));
4141 else
4142 {
4143 Elf_Internal_Sym *isym
4144 = bfd_sym_from_r_symndx (&htab->sym_cache,
4145 input_bfd, r_symndx);
4146 if (isym == NULL)
4147 return FALSE;
4148 sym_name
4149 = bfd_elf_string_from_elf_section (input_bfd,
4150 symtab_hdr->sh_link,
4151 isym->st_name);
4152 if (sym_name == NULL)
4153 return FALSE;
4154 if (*sym_name == '\0')
4155 sym_name = bfd_section_name (input_bfd, sym_sec);
4156 _bfd_error_handler
4157 (_("%pB:%s has both normal and TLS relocs"),
4158 input_bfd, sym_name);
4159 }
4160 bfd_set_error (bfd_error_bad_value);
4161 return FALSE;
4162 }
4163
4164 if ((tls_type & GOT_TLS_GD)
4165 && r_type != R_PARISC_TLS_GD21L
4166 && r_type != R_PARISC_TLS_GD14R)
4167 off += 2 * GOT_ENTRY_SIZE;
4168
4169 /* Add the base of the GOT to the relocation value. */
4170 relocation = (off
4171 + htab->etab.sgot->output_offset
4172 + htab->etab.sgot->output_section->vma);
4173
4174 break;
4175 }
4176
4177 case R_PARISC_TLS_LE21L:
4178 case R_PARISC_TLS_LE14R:
4179 {
4180 relocation = tpoff (info, relocation);
4181 break;
4182 }
4183 break;
4184
4185 default:
4186 break;
4187 }
4188
4189 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4190 htab, sym_sec, hh, info);
4191
4192 if (rstatus == bfd_reloc_ok)
4193 continue;
4194
4195 if (hh != NULL)
4196 sym_name = hh_name (hh);
4197 else
4198 {
4199 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4200 symtab_hdr->sh_link,
4201 sym->st_name);
4202 if (sym_name == NULL)
4203 return FALSE;
4204 if (*sym_name == '\0')
4205 sym_name = bfd_section_name (input_bfd, sym_sec);
4206 }
4207
4208 howto = elf_hppa_howto_table + r_type;
4209
4210 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4211 {
4212 if (rstatus == bfd_reloc_notsupported || !warned_undef)
4213 {
4214 _bfd_error_handler
4215 /* xgettext:c-format */
4216 (_("%pB(%pA+%#" PRIx64 "): cannot handle %s for %s"),
4217 input_bfd,
4218 input_section,
4219 (uint64_t) rela->r_offset,
4220 howto->name,
4221 sym_name);
4222 bfd_set_error (bfd_error_bad_value);
4223 return FALSE;
4224 }
4225 }
4226 else
4227 (*info->callbacks->reloc_overflow)
4228 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4229 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
4230 }
4231
4232 return TRUE;
4233 }
4234
4235 /* Finish up dynamic symbol handling. We set the contents of various
4236 dynamic sections here. */
4237
4238 static bfd_boolean
4239 elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4240 struct bfd_link_info *info,
4241 struct elf_link_hash_entry *eh,
4242 Elf_Internal_Sym *sym)
4243 {
4244 struct elf32_hppa_link_hash_table *htab;
4245 Elf_Internal_Rela rela;
4246 bfd_byte *loc;
4247
4248 htab = hppa_link_hash_table (info);
4249 if (htab == NULL)
4250 return FALSE;
4251
4252 if (eh->plt.offset != (bfd_vma) -1)
4253 {
4254 bfd_vma value;
4255
4256 if (eh->plt.offset & 1)
4257 abort ();
4258
4259 /* This symbol has an entry in the procedure linkage table. Set
4260 it up.
4261
4262 The format of a plt entry is
4263 <funcaddr>
4264 <__gp>
4265 */
4266 value = 0;
4267 if (eh->root.type == bfd_link_hash_defined
4268 || eh->root.type == bfd_link_hash_defweak)
4269 {
4270 value = eh->root.u.def.value;
4271 if (eh->root.u.def.section->output_section != NULL)
4272 value += (eh->root.u.def.section->output_offset
4273 + eh->root.u.def.section->output_section->vma);
4274 }
4275
4276 /* Create a dynamic IPLT relocation for this entry. */
4277 rela.r_offset = (eh->plt.offset
4278 + htab->etab.splt->output_offset
4279 + htab->etab.splt->output_section->vma);
4280 if (eh->dynindx != -1)
4281 {
4282 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4283 rela.r_addend = 0;
4284 }
4285 else
4286 {
4287 /* This symbol has been marked to become local, and is
4288 used by a plabel so must be kept in the .plt. */
4289 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4290 rela.r_addend = value;
4291 }
4292
4293 loc = htab->etab.srelplt->contents;
4294 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4295 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
4296
4297 if (!eh->def_regular)
4298 {
4299 /* Mark the symbol as undefined, rather than as defined in
4300 the .plt section. Leave the value alone. */
4301 sym->st_shndx = SHN_UNDEF;
4302 }
4303 }
4304
4305 if (eh->got.offset != (bfd_vma) -1
4306 && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0
4307 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
4308 {
4309 bfd_boolean is_dyn = (eh->dynindx != -1
4310 && !SYMBOL_REFERENCES_LOCAL (info, eh));
4311
4312 if (is_dyn || bfd_link_pic (info))
4313 {
4314 /* This symbol has an entry in the global offset table. Set
4315 it up. */
4316
4317 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4318 + htab->etab.sgot->output_offset
4319 + htab->etab.sgot->output_section->vma);
4320
4321 /* If this is a -Bsymbolic link and the symbol is defined
4322 locally or was forced to be local because of a version
4323 file, we just want to emit a RELATIVE reloc. The entry
4324 in the global offset table will already have been
4325 initialized in the relocate_section function. */
4326 if (!is_dyn)
4327 {
4328 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4329 rela.r_addend = (eh->root.u.def.value
4330 + eh->root.u.def.section->output_offset
4331 + eh->root.u.def.section->output_section->vma);
4332 }
4333 else
4334 {
4335 if ((eh->got.offset & 1) != 0)
4336 abort ();
4337
4338 bfd_put_32 (output_bfd, 0,
4339 htab->etab.sgot->contents + (eh->got.offset & ~1));
4340 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4341 rela.r_addend = 0;
4342 }
4343
4344 loc = htab->etab.srelgot->contents;
4345 loc += (htab->etab.srelgot->reloc_count++
4346 * sizeof (Elf32_External_Rela));
4347 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4348 }
4349 }
4350
4351 if (eh->needs_copy)
4352 {
4353 asection *sec;
4354
4355 /* This symbol needs a copy reloc. Set it up. */
4356
4357 if (! (eh->dynindx != -1
4358 && (eh->root.type == bfd_link_hash_defined
4359 || eh->root.type == bfd_link_hash_defweak)))
4360 abort ();
4361
4362 rela.r_offset = (eh->root.u.def.value
4363 + eh->root.u.def.section->output_offset
4364 + eh->root.u.def.section->output_section->vma);
4365 rela.r_addend = 0;
4366 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4367 if (eh->root.u.def.section == htab->etab.sdynrelro)
4368 sec = htab->etab.sreldynrelro;
4369 else
4370 sec = htab->etab.srelbss;
4371 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4372 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4373 }
4374
4375 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4376 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4377 {
4378 sym->st_shndx = SHN_ABS;
4379 }
4380
4381 return TRUE;
4382 }
4383
4384 /* Used to decide how to sort relocs in an optimal manner for the
4385 dynamic linker, before writing them out. */
4386
4387 static enum elf_reloc_type_class
4388 elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4389 const asection *rel_sec ATTRIBUTE_UNUSED,
4390 const Elf_Internal_Rela *rela)
4391 {
4392 /* Handle TLS relocs first; we don't want them to be marked
4393 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4394 check below. */
4395 switch ((int) ELF32_R_TYPE (rela->r_info))
4396 {
4397 case R_PARISC_TLS_DTPMOD32:
4398 case R_PARISC_TLS_DTPOFF32:
4399 case R_PARISC_TLS_TPREL32:
4400 return reloc_class_normal;
4401 }
4402
4403 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4404 return reloc_class_relative;
4405
4406 switch ((int) ELF32_R_TYPE (rela->r_info))
4407 {
4408 case R_PARISC_IPLT:
4409 return reloc_class_plt;
4410 case R_PARISC_COPY:
4411 return reloc_class_copy;
4412 default:
4413 return reloc_class_normal;
4414 }
4415 }
4416
4417 /* Finish up the dynamic sections. */
4418
4419 static bfd_boolean
4420 elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4421 struct bfd_link_info *info)
4422 {
4423 bfd *dynobj;
4424 struct elf32_hppa_link_hash_table *htab;
4425 asection *sdyn;
4426 asection * sgot;
4427
4428 htab = hppa_link_hash_table (info);
4429 if (htab == NULL)
4430 return FALSE;
4431
4432 dynobj = htab->etab.dynobj;
4433
4434 sgot = htab->etab.sgot;
4435 /* A broken linker script might have discarded the dynamic sections.
4436 Catch this here so that we do not seg-fault later on. */
4437 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4438 return FALSE;
4439
4440 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4441
4442 if (htab->etab.dynamic_sections_created)
4443 {
4444 Elf32_External_Dyn *dyncon, *dynconend;
4445
4446 if (sdyn == NULL)
4447 abort ();
4448
4449 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4450 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4451 for (; dyncon < dynconend; dyncon++)
4452 {
4453 Elf_Internal_Dyn dyn;
4454 asection *s;
4455
4456 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4457
4458 switch (dyn.d_tag)
4459 {
4460 default:
4461 continue;
4462
4463 case DT_PLTGOT:
4464 /* Use PLTGOT to set the GOT register. */
4465 dyn.d_un.d_ptr = elf_gp (output_bfd);
4466 break;
4467
4468 case DT_JMPREL:
4469 s = htab->etab.srelplt;
4470 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4471 break;
4472
4473 case DT_PLTRELSZ:
4474 s = htab->etab.srelplt;
4475 dyn.d_un.d_val = s->size;
4476 break;
4477 }
4478
4479 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4480 }
4481 }
4482
4483 if (sgot != NULL && sgot->size != 0)
4484 {
4485 /* Fill in the first entry in the global offset table.
4486 We use it to point to our dynamic section, if we have one. */
4487 bfd_put_32 (output_bfd,
4488 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4489 sgot->contents);
4490
4491 /* The second entry is reserved for use by the dynamic linker. */
4492 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4493
4494 /* Set .got entry size. */
4495 elf_section_data (sgot->output_section)
4496 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4497 }
4498
4499 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
4500 {
4501 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4502 plt stubs and as such the section does not hold a table of fixed-size
4503 entries. */
4504 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
4505
4506 if (htab->need_plt_stub)
4507 {
4508 /* Set up the .plt stub. */
4509 memcpy (htab->etab.splt->contents
4510 + htab->etab.splt->size - sizeof (plt_stub),
4511 plt_stub, sizeof (plt_stub));
4512
4513 if ((htab->etab.splt->output_offset
4514 + htab->etab.splt->output_section->vma
4515 + htab->etab.splt->size)
4516 != (sgot->output_offset
4517 + sgot->output_section->vma))
4518 {
4519 _bfd_error_handler
4520 (_(".got section not immediately after .plt section"));
4521 return FALSE;
4522 }
4523 }
4524 }
4525
4526 return TRUE;
4527 }
4528
4529 /* Called when writing out an object file to decide the type of a
4530 symbol. */
4531 static int
4532 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4533 {
4534 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4535 return STT_PARISC_MILLI;
4536 else
4537 return type;
4538 }
4539
4540 /* Misc BFD support code. */
4541 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4542 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4543 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4544 #define elf_info_to_howto elf_hppa_info_to_howto
4545 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4546
4547 /* Stuff for the BFD linker. */
4548 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4549 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4550 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4551 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4552 #define elf_backend_check_relocs elf32_hppa_check_relocs
4553 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4554 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4555 #define elf_backend_fake_sections elf_hppa_fake_sections
4556 #define elf_backend_relocate_section elf32_hppa_relocate_section
4557 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4558 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4559 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4560 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4561 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4562 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4563 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4564 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4565 #define elf_backend_object_p elf32_hppa_object_p
4566 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4567 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4568 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4569 #define elf_backend_action_discarded elf_hppa_action_discarded
4570
4571 #define elf_backend_can_gc_sections 1
4572 #define elf_backend_can_refcount 1
4573 #define elf_backend_plt_alignment 2
4574 #define elf_backend_want_got_plt 0
4575 #define elf_backend_plt_readonly 0
4576 #define elf_backend_want_plt_sym 0
4577 #define elf_backend_got_header_size 8
4578 #define elf_backend_want_dynrelro 1
4579 #define elf_backend_rela_normal 1
4580 #define elf_backend_dtrel_excludes_plt 1
4581 #define elf_backend_no_page_alias 1
4582
4583 #define TARGET_BIG_SYM hppa_elf32_vec
4584 #define TARGET_BIG_NAME "elf32-hppa"
4585 #define ELF_ARCH bfd_arch_hppa
4586 #define ELF_TARGET_ID HPPA32_ELF_DATA
4587 #define ELF_MACHINE_CODE EM_PARISC
4588 #define ELF_MAXPAGESIZE 0x1000
4589 #define ELF_OSABI ELFOSABI_HPUX
4590 #define elf32_bed elf32_hppa_hpux_bed
4591
4592 #include "elf32-target.h"
4593
4594 #undef TARGET_BIG_SYM
4595 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4596 #undef TARGET_BIG_NAME
4597 #define TARGET_BIG_NAME "elf32-hppa-linux"
4598 #undef ELF_OSABI
4599 #define ELF_OSABI ELFOSABI_GNU
4600 #undef elf32_bed
4601 #define elf32_bed elf32_hppa_linux_bed
4602
4603 #include "elf32-target.h"
4604
4605 #undef TARGET_BIG_SYM
4606 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4607 #undef TARGET_BIG_NAME
4608 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4609 #undef ELF_OSABI
4610 #define ELF_OSABI ELFOSABI_NETBSD
4611 #undef elf32_bed
4612 #define elf32_bed elf32_hppa_netbsd_bed
4613
4614 #include "elf32-target.h"
4615