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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [bfd/] [elf64-hppa.c] - Blame information for rev 225

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Line No. Rev Author Line
1 24 jeremybenn
/* Support for HPPA 64-bit ELF
2 225 jeremybenn
   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
3 24 jeremybenn
   Free Software Foundation, Inc.
4
 
5
   This file is part of BFD, the Binary File Descriptor library.
6
 
7
   This program is free software; you can redistribute it and/or modify
8
   it under the terms of the GNU General Public License as published by
9
   the Free Software Foundation; either version 3 of the License, or
10
   (at your option) any later version.
11
 
12
   This program is distributed in the hope that it will be useful,
13
   but WITHOUT ANY WARRANTY; without even the implied warranty of
14
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
   GNU General Public License for more details.
16
 
17
   You should have received a copy of the GNU General Public License
18
   along with this program; if not, write to the Free Software
19
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20
   MA 02110-1301, USA.  */
21
 
22 225 jeremybenn
#include "alloca-conf.h"
23 24 jeremybenn
#include "sysdep.h"
24
#include "bfd.h"
25
#include "libbfd.h"
26
#include "elf-bfd.h"
27
#include "elf/hppa.h"
28
#include "libhppa.h"
29
#include "elf64-hppa.h"
30
 
31
 
32
#define ARCH_SIZE              64
33
 
34
#define PLT_ENTRY_SIZE 0x10
35
#define DLT_ENTRY_SIZE 0x8
36
#define OPD_ENTRY_SIZE 0x20
37
 
38
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/pa20_64/dld.sl"
39
 
40
/* The stub is supposed to load the target address and target's DP
41
   value out of the PLT, then do an external branch to the target
42
   address.
43
 
44
   LDD PLTOFF(%r27),%r1
45
   BVE (%r1)
46
   LDD PLTOFF+8(%r27),%r27
47
 
48
   Note that we must use the LDD with a 14 bit displacement, not the one
49
   with a 5 bit displacement.  */
50
static char plt_stub[] = {0x53, 0x61, 0x00, 0x00, 0xe8, 0x20, 0xd0, 0x00,
51
                          0x53, 0x7b, 0x00, 0x00 };
52
 
53 225 jeremybenn
struct elf64_hppa_link_hash_entry
54 24 jeremybenn
{
55 225 jeremybenn
  struct elf_link_hash_entry eh;
56 24 jeremybenn
 
57
  /* Offsets for this symbol in various linker sections.  */
58
  bfd_vma dlt_offset;
59
  bfd_vma plt_offset;
60
  bfd_vma opd_offset;
61
  bfd_vma stub_offset;
62
 
63
  /* The index of the (possibly local) symbol in the input bfd and its
64
     associated BFD.  Needed so that we can have relocs against local
65
     symbols in shared libraries.  */
66
  long sym_indx;
67
  bfd *owner;
68
 
69
  /* Dynamic symbols may need to have two different values.  One for
70
     the dynamic symbol table, one for the normal symbol table.
71
 
72
     In such cases we store the symbol's real value and section
73
     index here so we can restore the real value before we write
74
     the normal symbol table.  */
75
  bfd_vma st_value;
76
  int st_shndx;
77
 
78
  /* Used to count non-got, non-plt relocations for delayed sizing
79
     of relocation sections.  */
80
  struct elf64_hppa_dyn_reloc_entry
81
  {
82
    /* Next relocation in the chain.  */
83
    struct elf64_hppa_dyn_reloc_entry *next;
84
 
85
    /* The type of the relocation.  */
86
    int type;
87
 
88
    /* The input section of the relocation.  */
89
    asection *sec;
90
 
91 225 jeremybenn
    /* Number of relocs copied in this section.  */
92
    bfd_size_type count;
93
 
94 24 jeremybenn
    /* The index of the section symbol for the input section of
95
       the relocation.  Only needed when building shared libraries.  */
96
    int sec_symndx;
97
 
98
    /* The offset within the input section of the relocation.  */
99
    bfd_vma offset;
100
 
101
    /* The addend for the relocation.  */
102
    bfd_vma addend;
103
 
104
  } *reloc_entries;
105
 
106
  /* Nonzero if this symbol needs an entry in one of the linker
107
     sections.  */
108
  unsigned want_dlt;
109
  unsigned want_plt;
110
  unsigned want_opd;
111
  unsigned want_stub;
112
};
113
 
114
struct elf64_hppa_link_hash_table
115
{
116
  struct elf_link_hash_table root;
117
 
118
  /* Shortcuts to get to the various linker defined sections.  */
119
  asection *dlt_sec;
120
  asection *dlt_rel_sec;
121
  asection *plt_sec;
122
  asection *plt_rel_sec;
123
  asection *opd_sec;
124
  asection *opd_rel_sec;
125
  asection *other_rel_sec;
126
 
127
  /* Offset of __gp within .plt section.  When the PLT gets large we want
128
     to slide __gp into the PLT section so that we can continue to use
129
     single DP relative instructions to load values out of the PLT.  */
130
  bfd_vma gp_offset;
131
 
132
  /* Note this is not strictly correct.  We should create a stub section for
133
     each input section with calls.  The stub section should be placed before
134
     the section with the call.  */
135
  asection *stub_sec;
136
 
137
  bfd_vma text_segment_base;
138
  bfd_vma data_segment_base;
139
 
140
  /* We build tables to map from an input section back to its
141
     symbol index.  This is the BFD for which we currently have
142
     a map.  */
143
  bfd *section_syms_bfd;
144
 
145
  /* Array of symbol numbers for each input section attached to the
146
     current BFD.  */
147
  int *section_syms;
148
};
149
 
150 225 jeremybenn
#define hppa_link_hash_table(p) \
151 24 jeremybenn
  ((struct elf64_hppa_link_hash_table *) ((p)->hash))
152
 
153 225 jeremybenn
#define hppa_elf_hash_entry(ent) \
154
  ((struct elf64_hppa_link_hash_entry *)(ent))
155
 
156
#define eh_name(eh) \
157
  (eh ? eh->root.root.string : "<undef>")
158
 
159 24 jeremybenn
typedef struct bfd_hash_entry *(*new_hash_entry_func)
160 225 jeremybenn
  (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
161 24 jeremybenn
 
162
static struct bfd_link_hash_table *elf64_hppa_hash_table_create
163 225 jeremybenn
  (bfd *abfd);
164 24 jeremybenn
 
165
/* This must follow the definitions of the various derived linker
166
   hash tables and shared functions.  */
167
#include "elf-hppa.h"
168
 
169
static bfd_boolean elf64_hppa_object_p
170 225 jeremybenn
  (bfd *);
171 24 jeremybenn
 
172
static void elf64_hppa_post_process_headers
173 225 jeremybenn
  (bfd *, struct bfd_link_info *);
174 24 jeremybenn
 
175
static bfd_boolean elf64_hppa_create_dynamic_sections
176 225 jeremybenn
  (bfd *, struct bfd_link_info *);
177 24 jeremybenn
 
178
static bfd_boolean elf64_hppa_adjust_dynamic_symbol
179 225 jeremybenn
  (struct bfd_link_info *, struct elf_link_hash_entry *);
180 24 jeremybenn
 
181
static bfd_boolean elf64_hppa_mark_milli_and_exported_functions
182 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
183 24 jeremybenn
 
184
static bfd_boolean elf64_hppa_size_dynamic_sections
185 225 jeremybenn
  (bfd *, struct bfd_link_info *);
186 24 jeremybenn
 
187 225 jeremybenn
static int elf64_hppa_link_output_symbol_hook
188
  (struct bfd_link_info *, const char *, Elf_Internal_Sym *,
189
   asection *, struct elf_link_hash_entry *);
190 24 jeremybenn
 
191
static bfd_boolean elf64_hppa_finish_dynamic_symbol
192 225 jeremybenn
  (bfd *, struct bfd_link_info *,
193
   struct elf_link_hash_entry *, Elf_Internal_Sym *);
194 24 jeremybenn
 
195
static enum elf_reloc_type_class elf64_hppa_reloc_type_class
196 225 jeremybenn
  (const Elf_Internal_Rela *);
197 24 jeremybenn
 
198
static bfd_boolean elf64_hppa_finish_dynamic_sections
199 225 jeremybenn
  (bfd *, struct bfd_link_info *);
200 24 jeremybenn
 
201
static bfd_boolean elf64_hppa_check_relocs
202 225 jeremybenn
  (bfd *, struct bfd_link_info *,
203
   asection *, const Elf_Internal_Rela *);
204 24 jeremybenn
 
205
static bfd_boolean elf64_hppa_dynamic_symbol_p
206 225 jeremybenn
  (struct elf_link_hash_entry *, struct bfd_link_info *);
207 24 jeremybenn
 
208
static bfd_boolean elf64_hppa_mark_exported_functions
209 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
210 24 jeremybenn
 
211
static bfd_boolean elf64_hppa_finalize_opd
212 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
213 24 jeremybenn
 
214
static bfd_boolean elf64_hppa_finalize_dlt
215 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
216 24 jeremybenn
 
217
static bfd_boolean allocate_global_data_dlt
218 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
219 24 jeremybenn
 
220
static bfd_boolean allocate_global_data_plt
221 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
222 24 jeremybenn
 
223
static bfd_boolean allocate_global_data_stub
224 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
225 24 jeremybenn
 
226
static bfd_boolean allocate_global_data_opd
227 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
228 24 jeremybenn
 
229
static bfd_boolean get_reloc_section
230 225 jeremybenn
  (bfd *, struct elf64_hppa_link_hash_table *, asection *);
231 24 jeremybenn
 
232
static bfd_boolean count_dyn_reloc
233 225 jeremybenn
  (bfd *, struct elf64_hppa_link_hash_entry *,
234
   int, asection *, int, bfd_vma, bfd_vma);
235 24 jeremybenn
 
236
static bfd_boolean allocate_dynrel_entries
237 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
238 24 jeremybenn
 
239
static bfd_boolean elf64_hppa_finalize_dynreloc
240 225 jeremybenn
  (struct elf_link_hash_entry *, void *);
241 24 jeremybenn
 
242
static bfd_boolean get_opd
243 225 jeremybenn
  (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
244 24 jeremybenn
 
245
static bfd_boolean get_plt
246 225 jeremybenn
  (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
247 24 jeremybenn
 
248
static bfd_boolean get_dlt
249 225 jeremybenn
  (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
250 24 jeremybenn
 
251
static bfd_boolean get_stub
252 225 jeremybenn
  (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
253 24 jeremybenn
 
254
static int elf64_hppa_elf_get_symbol_type
255 225 jeremybenn
  (Elf_Internal_Sym *, int);
256 24 jeremybenn
 
257 225 jeremybenn
/* Initialize an entry in the link hash table.  */
258 24 jeremybenn
 
259 225 jeremybenn
static struct bfd_hash_entry *
260
hppa64_link_hash_newfunc (struct bfd_hash_entry *entry,
261
                          struct bfd_hash_table *table,
262
                          const char *string)
263 24 jeremybenn
{
264
  /* Allocate the structure if it has not already been allocated by a
265
     subclass.  */
266 225 jeremybenn
  if (entry == NULL)
267
    {
268
      entry = bfd_hash_allocate (table,
269
                                 sizeof (struct elf64_hppa_link_hash_entry));
270
      if (entry == NULL)
271
        return entry;
272
    }
273 24 jeremybenn
 
274
  /* Call the allocation method of the superclass.  */
275 225 jeremybenn
  entry = _bfd_elf_link_hash_newfunc (entry, table, string);
276
  if (entry != NULL)
277
    {
278
      struct elf64_hppa_link_hash_entry *hh;
279 24 jeremybenn
 
280 225 jeremybenn
      /* Initialize our local data.  All zeros.  */
281
      hh = hppa_elf_hash_entry (entry);
282
      memset (&hh->dlt_offset, 0,
283
              (sizeof (struct elf64_hppa_link_hash_entry)
284
               - offsetof (struct elf64_hppa_link_hash_entry, dlt_offset)));
285
    }
286 24 jeremybenn
 
287 225 jeremybenn
  return entry;
288 24 jeremybenn
}
289
 
290
/* Create the derived linker hash table.  The PA64 ELF port uses this
291
   derived hash table to keep information specific to the PA ElF
292
   linker (without using static variables).  */
293
 
294
static struct bfd_link_hash_table*
295 225 jeremybenn
elf64_hppa_hash_table_create (bfd *abfd)
296 24 jeremybenn
{
297 225 jeremybenn
  struct elf64_hppa_link_hash_table *htab;
298
  bfd_size_type amt = sizeof (*htab);
299 24 jeremybenn
 
300 225 jeremybenn
  htab = bfd_zalloc (abfd, amt);
301
  if (htab == NULL)
302
    return NULL;
303
 
304
  if (!_bfd_elf_link_hash_table_init (&htab->root, abfd,
305
                                      hppa64_link_hash_newfunc,
306
                                      sizeof (struct elf64_hppa_link_hash_entry)))
307 24 jeremybenn
    {
308 225 jeremybenn
      bfd_release (abfd, htab);
309
      return NULL;
310 24 jeremybenn
    }
311
 
312 225 jeremybenn
  htab->text_segment_base = (bfd_vma) -1;
313
  htab->data_segment_base = (bfd_vma) -1;
314 24 jeremybenn
 
315 225 jeremybenn
  return &htab->root.root;
316 24 jeremybenn
}
317
 
318
/* Return nonzero if ABFD represents a PA2.0 ELF64 file.
319
 
320
   Additionally we set the default architecture and machine.  */
321
static bfd_boolean
322 225 jeremybenn
elf64_hppa_object_p (bfd *abfd)
323 24 jeremybenn
{
324
  Elf_Internal_Ehdr * i_ehdrp;
325
  unsigned int flags;
326
 
327
  i_ehdrp = elf_elfheader (abfd);
328
  if (strcmp (bfd_get_target (abfd), "elf64-hppa-linux") == 0)
329
    {
330
      /* GCC on hppa-linux produces binaries with OSABI=Linux,
331
         but the kernel produces corefiles with OSABI=SysV.  */
332
      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX
333
          && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
334
        return FALSE;
335
    }
336
  else
337
    {
338
      /* HPUX produces binaries with OSABI=HPUX,
339
         but the kernel produces corefiles with OSABI=SysV.  */
340
      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX
341
          && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
342
        return FALSE;
343
    }
344
 
345
  flags = i_ehdrp->e_flags;
346
  switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
347
    {
348
    case EFA_PARISC_1_0:
349
      return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
350
    case EFA_PARISC_1_1:
351
      return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
352
    case EFA_PARISC_2_0:
353
      if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64)
354
        return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
355
      else
356
        return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
357
    case EFA_PARISC_2_0 | EF_PARISC_WIDE:
358
      return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
359
    }
360
  /* Don't be fussy.  */
361
  return TRUE;
362
}
363
 
364
/* Given section type (hdr->sh_type), return a boolean indicating
365
   whether or not the section is an elf64-hppa specific section.  */
366
static bfd_boolean
367
elf64_hppa_section_from_shdr (bfd *abfd,
368
                              Elf_Internal_Shdr *hdr,
369
                              const char *name,
370
                              int shindex)
371
{
372
  asection *newsect;
373
 
374
  switch (hdr->sh_type)
375
    {
376
    case SHT_PARISC_EXT:
377
      if (strcmp (name, ".PARISC.archext") != 0)
378
        return FALSE;
379
      break;
380
    case SHT_PARISC_UNWIND:
381
      if (strcmp (name, ".PARISC.unwind") != 0)
382
        return FALSE;
383
      break;
384
    case SHT_PARISC_DOC:
385
    case SHT_PARISC_ANNOT:
386
    default:
387
      return FALSE;
388
    }
389
 
390
  if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
391
    return FALSE;
392
  newsect = hdr->bfd_section;
393
 
394
  return TRUE;
395
}
396
 
397
/* SEC is a section containing relocs for an input BFD when linking; return
398
   a suitable section for holding relocs in the output BFD for a link.  */
399
 
400
static bfd_boolean
401 225 jeremybenn
get_reloc_section (bfd *abfd,
402
                   struct elf64_hppa_link_hash_table *hppa_info,
403
                   asection *sec)
404 24 jeremybenn
{
405
  const char *srel_name;
406
  asection *srel;
407
  bfd *dynobj;
408
 
409
  srel_name = (bfd_elf_string_from_elf_section
410
               (abfd, elf_elfheader(abfd)->e_shstrndx,
411
                elf_section_data(sec)->rel_hdr.sh_name));
412
  if (srel_name == NULL)
413
    return FALSE;
414
 
415
  BFD_ASSERT ((CONST_STRNEQ (srel_name, ".rela")
416
               && strcmp (bfd_get_section_name (abfd, sec),
417
                          srel_name + 5) == 0)
418
              || (CONST_STRNEQ (srel_name, ".rel")
419
                  && strcmp (bfd_get_section_name (abfd, sec),
420
                             srel_name + 4) == 0));
421
 
422
  dynobj = hppa_info->root.dynobj;
423
  if (!dynobj)
424
    hppa_info->root.dynobj = dynobj = abfd;
425
 
426
  srel = bfd_get_section_by_name (dynobj, srel_name);
427
  if (srel == NULL)
428
    {
429
      srel = bfd_make_section_with_flags (dynobj, srel_name,
430
                                          (SEC_ALLOC
431
                                           | SEC_LOAD
432
                                           | SEC_HAS_CONTENTS
433
                                           | SEC_IN_MEMORY
434
                                           | SEC_LINKER_CREATED
435
                                           | SEC_READONLY));
436
      if (srel == NULL
437
          || !bfd_set_section_alignment (dynobj, srel, 3))
438
        return FALSE;
439
    }
440
 
441
  hppa_info->other_rel_sec = srel;
442
  return TRUE;
443
}
444
 
445
/* Add a new entry to the list of dynamic relocations against DYN_H.
446
 
447
   We use this to keep a record of all the FPTR relocations against a
448
   particular symbol so that we can create FPTR relocations in the
449
   output file.  */
450
 
451
static bfd_boolean
452 225 jeremybenn
count_dyn_reloc (bfd *abfd,
453
                 struct elf64_hppa_link_hash_entry *hh,
454
                 int type,
455
                 asection *sec,
456
                 int sec_symndx,
457
                 bfd_vma offset,
458
                 bfd_vma addend)
459 24 jeremybenn
{
460
  struct elf64_hppa_dyn_reloc_entry *rent;
461
 
462
  rent = (struct elf64_hppa_dyn_reloc_entry *)
463
  bfd_alloc (abfd, (bfd_size_type) sizeof (*rent));
464
  if (!rent)
465
    return FALSE;
466
 
467 225 jeremybenn
  rent->next = hh->reloc_entries;
468 24 jeremybenn
  rent->type = type;
469
  rent->sec = sec;
470
  rent->sec_symndx = sec_symndx;
471
  rent->offset = offset;
472
  rent->addend = addend;
473 225 jeremybenn
  hh->reloc_entries = rent;
474 24 jeremybenn
 
475
  return TRUE;
476
}
477
 
478 225 jeremybenn
/* Return a pointer to the local DLT, PLT and OPD reference counts
479
   for ABFD.  Returns NULL if the storage allocation fails.  */
480
 
481
static bfd_signed_vma *
482
hppa64_elf_local_refcounts (bfd *abfd)
483
{
484
  Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
485
  bfd_signed_vma *local_refcounts;
486
 
487
  local_refcounts = elf_local_got_refcounts (abfd);
488
  if (local_refcounts == NULL)
489
    {
490
      bfd_size_type size;
491
 
492
      /* Allocate space for local DLT, PLT and OPD reference
493
         counts.  Done this way to save polluting elf_obj_tdata
494
         with another target specific pointer.  */
495
      size = symtab_hdr->sh_info;
496
      size *= 3 * sizeof (bfd_signed_vma);
497
      local_refcounts = bfd_zalloc (abfd, size);
498
      elf_local_got_refcounts (abfd) = local_refcounts;
499
    }
500
  return local_refcounts;
501
}
502
 
503 24 jeremybenn
/* Scan the RELOCS and record the type of dynamic entries that each
504
   referenced symbol needs.  */
505
 
506
static bfd_boolean
507 225 jeremybenn
elf64_hppa_check_relocs (bfd *abfd,
508
                         struct bfd_link_info *info,
509
                         asection *sec,
510
                         const Elf_Internal_Rela *relocs)
511 24 jeremybenn
{
512
  struct elf64_hppa_link_hash_table *hppa_info;
513
  const Elf_Internal_Rela *relend;
514
  Elf_Internal_Shdr *symtab_hdr;
515
  const Elf_Internal_Rela *rel;
516
  asection *dlt, *plt, *stubs;
517
  char *buf;
518
  size_t buf_len;
519 225 jeremybenn
  unsigned int sec_symndx;
520 24 jeremybenn
 
521
  if (info->relocatable)
522
    return TRUE;
523
 
524
  /* If this is the first dynamic object found in the link, create
525
     the special sections required for dynamic linking.  */
526
  if (! elf_hash_table (info)->dynamic_sections_created)
527
    {
528
      if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
529
        return FALSE;
530
    }
531
 
532 225 jeremybenn
  hppa_info = hppa_link_hash_table (info);
533 24 jeremybenn
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
534
 
535
  /* If necessary, build a new table holding section symbols indices
536
     for this BFD.  */
537
 
538
  if (info->shared && hppa_info->section_syms_bfd != abfd)
539
    {
540
      unsigned long i;
541
      unsigned int highest_shndx;
542
      Elf_Internal_Sym *local_syms = NULL;
543
      Elf_Internal_Sym *isym, *isymend;
544
      bfd_size_type amt;
545
 
546
      /* We're done with the old cache of section index to section symbol
547
         index information.  Free it.
548
 
549
         ?!? Note we leak the last section_syms array.  Presumably we
550
         could free it in one of the later routines in this file.  */
551
      if (hppa_info->section_syms)
552
        free (hppa_info->section_syms);
553
 
554
      /* Read this BFD's local symbols.  */
555
      if (symtab_hdr->sh_info != 0)
556
        {
557
          local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
558
          if (local_syms == NULL)
559
            local_syms = bfd_elf_get_elf_syms (abfd, symtab_hdr,
560
                                               symtab_hdr->sh_info, 0,
561
                                               NULL, NULL, NULL);
562
          if (local_syms == NULL)
563
            return FALSE;
564
        }
565
 
566
      /* Record the highest section index referenced by the local symbols.  */
567
      highest_shndx = 0;
568
      isymend = local_syms + symtab_hdr->sh_info;
569
      for (isym = local_syms; isym < isymend; isym++)
570
        {
571 225 jeremybenn
          if (isym->st_shndx > highest_shndx
572
              && isym->st_shndx < SHN_LORESERVE)
573 24 jeremybenn
            highest_shndx = isym->st_shndx;
574
        }
575
 
576
      /* Allocate an array to hold the section index to section symbol index
577
         mapping.  Bump by one since we start counting at zero.  */
578
      highest_shndx++;
579
      amt = highest_shndx;
580
      amt *= sizeof (int);
581
      hppa_info->section_syms = (int *) bfd_malloc (amt);
582
 
583
      /* Now walk the local symbols again.  If we find a section symbol,
584
         record the index of the symbol into the section_syms array.  */
585
      for (i = 0, isym = local_syms; isym < isymend; i++, isym++)
586
        {
587
          if (ELF_ST_TYPE (isym->st_info) == STT_SECTION)
588
            hppa_info->section_syms[isym->st_shndx] = i;
589
        }
590
 
591
      /* We are finished with the local symbols.  */
592
      if (local_syms != NULL
593
          && symtab_hdr->contents != (unsigned char *) local_syms)
594
        {
595
          if (! info->keep_memory)
596
            free (local_syms);
597
          else
598
            {
599
              /* Cache the symbols for elf_link_input_bfd.  */
600
              symtab_hdr->contents = (unsigned char *) local_syms;
601
            }
602
        }
603
 
604
      /* Record which BFD we built the section_syms mapping for.  */
605
      hppa_info->section_syms_bfd = abfd;
606
    }
607
 
608
  /* Record the symbol index for this input section.  We may need it for
609
     relocations when building shared libraries.  When not building shared
610
     libraries this value is never really used, but assign it to zero to
611
     prevent out of bounds memory accesses in other routines.  */
612
  if (info->shared)
613
    {
614
      sec_symndx = _bfd_elf_section_from_bfd_section (abfd, sec);
615
 
616
      /* If we did not find a section symbol for this section, then
617
         something went terribly wrong above.  */
618 225 jeremybenn
      if (sec_symndx == SHN_BAD)
619 24 jeremybenn
        return FALSE;
620
 
621 225 jeremybenn
      if (sec_symndx < SHN_LORESERVE)
622
        sec_symndx = hppa_info->section_syms[sec_symndx];
623
      else
624
        sec_symndx = 0;
625 24 jeremybenn
    }
626
  else
627
    sec_symndx = 0;
628
 
629
  dlt = plt = stubs = NULL;
630
  buf = NULL;
631
  buf_len = 0;
632
 
633
  relend = relocs + sec->reloc_count;
634
  for (rel = relocs; rel < relend; ++rel)
635
    {
636
      enum
637
        {
638
          NEED_DLT = 1,
639
          NEED_PLT = 2,
640
          NEED_STUB = 4,
641
          NEED_OPD = 8,
642
          NEED_DYNREL = 16,
643
        };
644
 
645
      unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
646 225 jeremybenn
      struct elf64_hppa_link_hash_entry *hh;
647 24 jeremybenn
      int need_entry;
648
      bfd_boolean maybe_dynamic;
649
      int dynrel_type = R_PARISC_NONE;
650
      static reloc_howto_type *howto;
651
 
652
      if (r_symndx >= symtab_hdr->sh_info)
653
        {
654
          /* We're dealing with a global symbol -- find its hash entry
655
             and mark it as being referenced.  */
656
          long indx = r_symndx - symtab_hdr->sh_info;
657 225 jeremybenn
          hh = hppa_elf_hash_entry (elf_sym_hashes (abfd)[indx]);
658
          while (hh->eh.root.type == bfd_link_hash_indirect
659
                 || hh->eh.root.type == bfd_link_hash_warning)
660
            hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
661 24 jeremybenn
 
662 225 jeremybenn
          hh->eh.ref_regular = 1;
663 24 jeremybenn
        }
664 225 jeremybenn
      else
665
        hh = NULL;
666 24 jeremybenn
 
667
      /* We can only get preliminary data on whether a symbol is
668
         locally or externally defined, as not all of the input files
669
         have yet been processed.  Do something with what we know, as
670
         this may help reduce memory usage and processing time later.  */
671
      maybe_dynamic = FALSE;
672 225 jeremybenn
      if (hh && ((info->shared
673 24 jeremybenn
                 && (!info->symbolic
674
                     || info->unresolved_syms_in_shared_libs == RM_IGNORE))
675 225 jeremybenn
                || !hh->eh.def_regular
676
                || hh->eh.root.type == bfd_link_hash_defweak))
677 24 jeremybenn
        maybe_dynamic = TRUE;
678
 
679
      howto = elf_hppa_howto_table + ELF64_R_TYPE (rel->r_info);
680
      need_entry = 0;
681
      switch (howto->type)
682
        {
683
        /* These are simple indirect references to symbols through the
684
           DLT.  We need to create a DLT entry for any symbols which
685
           appears in a DLTIND relocation.  */
686
        case R_PARISC_DLTIND21L:
687
        case R_PARISC_DLTIND14R:
688
        case R_PARISC_DLTIND14F:
689
        case R_PARISC_DLTIND14WR:
690
        case R_PARISC_DLTIND14DR:
691
          need_entry = NEED_DLT;
692
          break;
693
 
694
        /* ?!?  These need a DLT entry.  But I have no idea what to do with
695
           the "link time TP value.  */
696
        case R_PARISC_LTOFF_TP21L:
697
        case R_PARISC_LTOFF_TP14R:
698
        case R_PARISC_LTOFF_TP14F:
699
        case R_PARISC_LTOFF_TP64:
700
        case R_PARISC_LTOFF_TP14WR:
701
        case R_PARISC_LTOFF_TP14DR:
702
        case R_PARISC_LTOFF_TP16F:
703
        case R_PARISC_LTOFF_TP16WF:
704
        case R_PARISC_LTOFF_TP16DF:
705
          need_entry = NEED_DLT;
706
          break;
707
 
708
        /* These are function calls.  Depending on their precise target we
709
           may need to make a stub for them.  The stub uses the PLT, so we
710
           need to create PLT entries for these symbols too.  */
711
        case R_PARISC_PCREL12F:
712
        case R_PARISC_PCREL17F:
713
        case R_PARISC_PCREL22F:
714
        case R_PARISC_PCREL32:
715
        case R_PARISC_PCREL64:
716
        case R_PARISC_PCREL21L:
717
        case R_PARISC_PCREL17R:
718
        case R_PARISC_PCREL17C:
719
        case R_PARISC_PCREL14R:
720
        case R_PARISC_PCREL14F:
721
        case R_PARISC_PCREL22C:
722
        case R_PARISC_PCREL14WR:
723
        case R_PARISC_PCREL14DR:
724
        case R_PARISC_PCREL16F:
725
        case R_PARISC_PCREL16WF:
726
        case R_PARISC_PCREL16DF:
727 225 jeremybenn
          /* Function calls might need to go through the .plt, and
728
             might need a long branch stub.  */
729
          if (hh != NULL && hh->eh.type != STT_PARISC_MILLI)
730
            need_entry = (NEED_PLT | NEED_STUB);
731
          else
732
            need_entry = 0;
733 24 jeremybenn
          break;
734
 
735
        case R_PARISC_PLTOFF21L:
736
        case R_PARISC_PLTOFF14R:
737
        case R_PARISC_PLTOFF14F:
738
        case R_PARISC_PLTOFF14WR:
739
        case R_PARISC_PLTOFF14DR:
740
        case R_PARISC_PLTOFF16F:
741
        case R_PARISC_PLTOFF16WF:
742
        case R_PARISC_PLTOFF16DF:
743
          need_entry = (NEED_PLT);
744
          break;
745
 
746
        case R_PARISC_DIR64:
747
          if (info->shared || maybe_dynamic)
748
            need_entry = (NEED_DYNREL);
749
          dynrel_type = R_PARISC_DIR64;
750
          break;
751
 
752
        /* This is an indirect reference through the DLT to get the address
753
           of a OPD descriptor.  Thus we need to make a DLT entry that points
754
           to an OPD entry.  */
755
        case R_PARISC_LTOFF_FPTR21L:
756
        case R_PARISC_LTOFF_FPTR14R:
757
        case R_PARISC_LTOFF_FPTR14WR:
758
        case R_PARISC_LTOFF_FPTR14DR:
759
        case R_PARISC_LTOFF_FPTR32:
760
        case R_PARISC_LTOFF_FPTR64:
761
        case R_PARISC_LTOFF_FPTR16F:
762
        case R_PARISC_LTOFF_FPTR16WF:
763
        case R_PARISC_LTOFF_FPTR16DF:
764
          if (info->shared || maybe_dynamic)
765 225 jeremybenn
            need_entry = (NEED_DLT | NEED_OPD | NEED_PLT);
766 24 jeremybenn
          else
767 225 jeremybenn
            need_entry = (NEED_DLT | NEED_OPD | NEED_PLT);
768 24 jeremybenn
          dynrel_type = R_PARISC_FPTR64;
769
          break;
770
 
771
        /* This is a simple OPD entry.  */
772
        case R_PARISC_FPTR64:
773
          if (info->shared || maybe_dynamic)
774 225 jeremybenn
            need_entry = (NEED_OPD | NEED_PLT | NEED_DYNREL);
775 24 jeremybenn
          else
776 225 jeremybenn
            need_entry = (NEED_OPD | NEED_PLT);
777 24 jeremybenn
          dynrel_type = R_PARISC_FPTR64;
778
          break;
779
 
780
        /* Add more cases as needed.  */
781
        }
782
 
783
      if (!need_entry)
784
        continue;
785
 
786 225 jeremybenn
      if (hh)
787
        {
788
          /* Stash away enough information to be able to find this symbol
789
             regardless of whether or not it is local or global.  */
790
          hh->owner = abfd;
791
          hh->sym_indx = r_symndx;
792
        }
793 24 jeremybenn
 
794
      /* Create what's needed.  */
795
      if (need_entry & NEED_DLT)
796
        {
797 225 jeremybenn
          /* Allocate space for a DLT entry, as well as a dynamic
798
             relocation for this entry.  */
799 24 jeremybenn
          if (! hppa_info->dlt_sec
800
              && ! get_dlt (abfd, info, hppa_info))
801
            goto err_out;
802 225 jeremybenn
 
803
          if (hh != NULL)
804
            {
805
              hh->want_dlt = 1;
806
              hh->eh.got.refcount += 1;
807
            }
808
          else
809
            {
810
              bfd_signed_vma *local_dlt_refcounts;
811
 
812
              /* This is a DLT entry for a local symbol.  */
813
              local_dlt_refcounts = hppa64_elf_local_refcounts (abfd);
814
              if (local_dlt_refcounts == NULL)
815
                return FALSE;
816
              local_dlt_refcounts[r_symndx] += 1;
817
            }
818 24 jeremybenn
        }
819
 
820
      if (need_entry & NEED_PLT)
821
        {
822
          if (! hppa_info->plt_sec
823
              && ! get_plt (abfd, info, hppa_info))
824
            goto err_out;
825 225 jeremybenn
 
826
          if (hh != NULL)
827
            {
828
              hh->want_plt = 1;
829
              hh->eh.needs_plt = 1;
830
              hh->eh.plt.refcount += 1;
831
            }
832
          else
833
            {
834
              bfd_signed_vma *local_dlt_refcounts;
835
              bfd_signed_vma *local_plt_refcounts;
836
 
837
              /* This is a PLT entry for a local symbol.  */
838
              local_dlt_refcounts = hppa64_elf_local_refcounts (abfd);
839
              if (local_dlt_refcounts == NULL)
840
                return FALSE;
841
              local_plt_refcounts = local_dlt_refcounts + symtab_hdr->sh_info;
842
              local_plt_refcounts[r_symndx] += 1;
843
            }
844 24 jeremybenn
        }
845
 
846
      if (need_entry & NEED_STUB)
847
        {
848
          if (! hppa_info->stub_sec
849
              && ! get_stub (abfd, info, hppa_info))
850
            goto err_out;
851 225 jeremybenn
          if (hh)
852
            hh->want_stub = 1;
853 24 jeremybenn
        }
854
 
855
      if (need_entry & NEED_OPD)
856
        {
857
          if (! hppa_info->opd_sec
858
              && ! get_opd (abfd, info, hppa_info))
859
            goto err_out;
860
 
861 225 jeremybenn
          /* FPTRs are not allocated by the dynamic linker for PA64,
862
             though it is possible that will change in the future.  */
863 24 jeremybenn
 
864 225 jeremybenn
          if (hh != NULL)
865
            hh->want_opd = 1;
866
          else
867
            {
868
              bfd_signed_vma *local_dlt_refcounts;
869
              bfd_signed_vma *local_opd_refcounts;
870
 
871
              /* This is a OPD for a local symbol.  */
872
              local_dlt_refcounts = hppa64_elf_local_refcounts (abfd);
873
              if (local_dlt_refcounts == NULL)
874
                return FALSE;
875
              local_opd_refcounts = (local_dlt_refcounts
876
                                     + 2 * symtab_hdr->sh_info);
877
              local_opd_refcounts[r_symndx] += 1;
878
            }
879 24 jeremybenn
        }
880
 
881
      /* Add a new dynamic relocation to the chain of dynamic
882
         relocations for this symbol.  */
883
      if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
884
        {
885
          if (! hppa_info->other_rel_sec
886
              && ! get_reloc_section (abfd, hppa_info, sec))
887
            goto err_out;
888
 
889 225 jeremybenn
          /* Count dynamic relocations against global symbols.  */
890
          if (hh != NULL
891
              && !count_dyn_reloc (abfd, hh, dynrel_type, sec,
892
                                   sec_symndx, rel->r_offset, rel->r_addend))
893 24 jeremybenn
            goto err_out;
894
 
895
          /* If we are building a shared library and we just recorded
896
             a dynamic R_PARISC_FPTR64 relocation, then make sure the
897
             section symbol for this section ends up in the dynamic
898
             symbol table.  */
899
          if (info->shared && dynrel_type == R_PARISC_FPTR64
900
              && ! (bfd_elf_link_record_local_dynamic_symbol
901
                    (info, abfd, sec_symndx)))
902
            return FALSE;
903
        }
904
    }
905
 
906
  if (buf)
907
    free (buf);
908
  return TRUE;
909
 
910
 err_out:
911
  if (buf)
912
    free (buf);
913
  return FALSE;
914
}
915
 
916
struct elf64_hppa_allocate_data
917
{
918
  struct bfd_link_info *info;
919
  bfd_size_type ofs;
920
};
921
 
922
/* Should we do dynamic things to this symbol?  */
923
 
924
static bfd_boolean
925 225 jeremybenn
elf64_hppa_dynamic_symbol_p (struct elf_link_hash_entry *eh,
926
                             struct bfd_link_info *info)
927 24 jeremybenn
{
928
  /* ??? What, if anything, needs to happen wrt STV_PROTECTED symbols
929
     and relocations that retrieve a function descriptor?  Assume the
930
     worst for now.  */
931 225 jeremybenn
  if (_bfd_elf_dynamic_symbol_p (eh, info, 1))
932 24 jeremybenn
    {
933
      /* ??? Why is this here and not elsewhere is_local_label_name.  */
934 225 jeremybenn
      if (eh->root.root.string[0] == '$' && eh->root.root.string[1] == '$')
935 24 jeremybenn
        return FALSE;
936
 
937
      return TRUE;
938
    }
939
  else
940
    return FALSE;
941
}
942
 
943
/* Mark all functions exported by this file so that we can later allocate
944
   entries in .opd for them.  */
945
 
946
static bfd_boolean
947 225 jeremybenn
elf64_hppa_mark_exported_functions (struct elf_link_hash_entry *eh, void *data)
948 24 jeremybenn
{
949 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
950 24 jeremybenn
  struct bfd_link_info *info = (struct bfd_link_info *)data;
951
  struct elf64_hppa_link_hash_table *hppa_info;
952
 
953 225 jeremybenn
  hppa_info = hppa_link_hash_table (info);
954 24 jeremybenn
 
955 225 jeremybenn
  if (eh->root.type == bfd_link_hash_warning)
956
    eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
957 24 jeremybenn
 
958 225 jeremybenn
  if (eh
959
      && (eh->root.type == bfd_link_hash_defined
960
          || eh->root.type == bfd_link_hash_defweak)
961
      && eh->root.u.def.section->output_section != NULL
962
      && eh->type == STT_FUNC)
963 24 jeremybenn
    {
964
      if (! hppa_info->opd_sec
965
          && ! get_opd (hppa_info->root.dynobj, info, hppa_info))
966
        return FALSE;
967
 
968 225 jeremybenn
      hh->want_opd = 1;
969
 
970 24 jeremybenn
      /* Put a flag here for output_symbol_hook.  */
971 225 jeremybenn
      hh->st_shndx = -1;
972
      eh->needs_plt = 1;
973 24 jeremybenn
    }
974
 
975
  return TRUE;
976
}
977
 
978
/* Allocate space for a DLT entry.  */
979
 
980
static bfd_boolean
981 225 jeremybenn
allocate_global_data_dlt (struct elf_link_hash_entry *eh, void *data)
982 24 jeremybenn
{
983 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
984 24 jeremybenn
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
985
 
986 225 jeremybenn
  if (hh->want_dlt)
987 24 jeremybenn
    {
988
      if (x->info->shared)
989
        {
990
          /* Possibly add the symbol to the local dynamic symbol
991
             table since we might need to create a dynamic relocation
992
             against it.  */
993 225 jeremybenn
          if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI)
994 24 jeremybenn
            {
995 225 jeremybenn
              bfd *owner = eh->root.u.def.section->owner;
996 24 jeremybenn
 
997
              if (! (bfd_elf_link_record_local_dynamic_symbol
998 225 jeremybenn
                     (x->info, owner, hh->sym_indx)))
999 24 jeremybenn
                return FALSE;
1000
            }
1001
        }
1002
 
1003 225 jeremybenn
      hh->dlt_offset = x->ofs;
1004 24 jeremybenn
      x->ofs += DLT_ENTRY_SIZE;
1005
    }
1006
  return TRUE;
1007
}
1008
 
1009
/* Allocate space for a DLT.PLT entry.  */
1010
 
1011
static bfd_boolean
1012 225 jeremybenn
allocate_global_data_plt (struct elf_link_hash_entry *eh, void *data)
1013 24 jeremybenn
{
1014 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1015 24 jeremybenn
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
1016
 
1017 225 jeremybenn
  if (hh->want_plt
1018
      && elf64_hppa_dynamic_symbol_p (eh, x->info)
1019
      && !((eh->root.type == bfd_link_hash_defined
1020
            || eh->root.type == bfd_link_hash_defweak)
1021
           && eh->root.u.def.section->output_section != NULL))
1022 24 jeremybenn
    {
1023 225 jeremybenn
      hh->plt_offset = x->ofs;
1024 24 jeremybenn
      x->ofs += PLT_ENTRY_SIZE;
1025 225 jeremybenn
      if (hh->plt_offset < 0x2000)
1026
        hppa_link_hash_table (x->info)->gp_offset = hh->plt_offset;
1027 24 jeremybenn
    }
1028
  else
1029 225 jeremybenn
    hh->want_plt = 0;
1030 24 jeremybenn
 
1031
  return TRUE;
1032
}
1033
 
1034
/* Allocate space for a STUB entry.  */
1035
 
1036
static bfd_boolean
1037 225 jeremybenn
allocate_global_data_stub (struct elf_link_hash_entry *eh, void *data)
1038 24 jeremybenn
{
1039 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1040 24 jeremybenn
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
1041
 
1042 225 jeremybenn
  if (hh->want_stub
1043
      && elf64_hppa_dynamic_symbol_p (eh, x->info)
1044
      && !((eh->root.type == bfd_link_hash_defined
1045
            || eh->root.type == bfd_link_hash_defweak)
1046
           && eh->root.u.def.section->output_section != NULL))
1047 24 jeremybenn
    {
1048 225 jeremybenn
      hh->stub_offset = x->ofs;
1049 24 jeremybenn
      x->ofs += sizeof (plt_stub);
1050
    }
1051
  else
1052 225 jeremybenn
    hh->want_stub = 0;
1053 24 jeremybenn
  return TRUE;
1054
}
1055
 
1056
/* Allocate space for a FPTR entry.  */
1057
 
1058
static bfd_boolean
1059 225 jeremybenn
allocate_global_data_opd (struct elf_link_hash_entry *eh, void *data)
1060 24 jeremybenn
{
1061 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1062 24 jeremybenn
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
1063
 
1064 225 jeremybenn
  if (hh && hh->want_opd)
1065 24 jeremybenn
    {
1066 225 jeremybenn
      while (hh->eh.root.type == bfd_link_hash_indirect
1067
             || hh->eh.root.type == bfd_link_hash_warning)
1068
        hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1069 24 jeremybenn
 
1070
      /* We never need an opd entry for a symbol which is not
1071
         defined by this output file.  */
1072 225 jeremybenn
      if (hh && (hh->eh.root.type == bfd_link_hash_undefined
1073
                 || hh->eh.root.type == bfd_link_hash_undefweak
1074
                 || hh->eh.root.u.def.section->output_section == NULL))
1075
        hh->want_opd = 0;
1076 24 jeremybenn
 
1077
      /* If we are creating a shared library, took the address of a local
1078
         function or might export this function from this object file, then
1079
         we have to create an opd descriptor.  */
1080
      else if (x->info->shared
1081 225 jeremybenn
               || hh == NULL
1082
               || (hh->eh.dynindx == -1 && hh->eh.type != STT_PARISC_MILLI)
1083
               || (hh->eh.root.type == bfd_link_hash_defined
1084
                   || hh->eh.root.type == bfd_link_hash_defweak))
1085 24 jeremybenn
        {
1086
          /* If we are creating a shared library, then we will have to
1087
             create a runtime relocation for the symbol to properly
1088
             initialize the .opd entry.  Make sure the symbol gets
1089
             added to the dynamic symbol table.  */
1090
          if (x->info->shared
1091 225 jeremybenn
              && (hh == NULL || (hh->eh.dynindx == -1)))
1092 24 jeremybenn
            {
1093
              bfd *owner;
1094 225 jeremybenn
              /* PR 6511: Default to using the dynamic symbol table.  */
1095
              owner = (hh->owner ? hh->owner: eh->root.u.def.section->owner);
1096 24 jeremybenn
 
1097
              if (!bfd_elf_link_record_local_dynamic_symbol
1098 225 jeremybenn
                    (x->info, owner, hh->sym_indx))
1099 24 jeremybenn
                return FALSE;
1100
            }
1101
 
1102
          /* This may not be necessary or desirable anymore now that
1103
             we have some support for dealing with section symbols
1104
             in dynamic relocs.  But name munging does make the result
1105
             much easier to debug.  ie, the EPLT reloc will reference
1106
             a symbol like .foobar, instead of .text + offset.  */
1107 225 jeremybenn
          if (x->info->shared && eh)
1108 24 jeremybenn
            {
1109
              char *new_name;
1110
              struct elf_link_hash_entry *nh;
1111
 
1112 225 jeremybenn
              new_name = alloca (strlen (eh->root.root.string) + 2);
1113 24 jeremybenn
              new_name[0] = '.';
1114 225 jeremybenn
              strcpy (new_name + 1, eh->root.root.string);
1115 24 jeremybenn
 
1116
              nh = elf_link_hash_lookup (elf_hash_table (x->info),
1117
                                         new_name, TRUE, TRUE, TRUE);
1118
 
1119 225 jeremybenn
              nh->root.type = eh->root.type;
1120
              nh->root.u.def.value = eh->root.u.def.value;
1121
              nh->root.u.def.section = eh->root.u.def.section;
1122 24 jeremybenn
 
1123
              if (! bfd_elf_link_record_dynamic_symbol (x->info, nh))
1124
                return FALSE;
1125
 
1126
             }
1127 225 jeremybenn
          hh->opd_offset = x->ofs;
1128 24 jeremybenn
          x->ofs += OPD_ENTRY_SIZE;
1129
        }
1130
 
1131
      /* Otherwise we do not need an opd entry.  */
1132
      else
1133 225 jeremybenn
        hh->want_opd = 0;
1134 24 jeremybenn
    }
1135
  return TRUE;
1136
}
1137
 
1138
/* HP requires the EI_OSABI field to be filled in.  The assignment to
1139
   EI_ABIVERSION may not be strictly necessary.  */
1140
 
1141
static void
1142 225 jeremybenn
elf64_hppa_post_process_headers (bfd *abfd,
1143
                         struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
1144 24 jeremybenn
{
1145
  Elf_Internal_Ehdr * i_ehdrp;
1146
 
1147
  i_ehdrp = elf_elfheader (abfd);
1148
 
1149
  i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
1150
  i_ehdrp->e_ident[EI_ABIVERSION] = 1;
1151
}
1152
 
1153
/* Create function descriptor section (.opd).  This section is called .opd
1154
   because it contains "official procedure descriptors".  The "official"
1155
   refers to the fact that these descriptors are used when taking the address
1156
   of a procedure, thus ensuring a unique address for each procedure.  */
1157
 
1158
static bfd_boolean
1159 225 jeremybenn
get_opd (bfd *abfd,
1160
         struct bfd_link_info *info ATTRIBUTE_UNUSED,
1161
         struct elf64_hppa_link_hash_table *hppa_info)
1162 24 jeremybenn
{
1163
  asection *opd;
1164
  bfd *dynobj;
1165
 
1166
  opd = hppa_info->opd_sec;
1167
  if (!opd)
1168
    {
1169
      dynobj = hppa_info->root.dynobj;
1170
      if (!dynobj)
1171
        hppa_info->root.dynobj = dynobj = abfd;
1172
 
1173
      opd = bfd_make_section_with_flags (dynobj, ".opd",
1174
                                         (SEC_ALLOC
1175
                                          | SEC_LOAD
1176
                                          | SEC_HAS_CONTENTS
1177
                                          | SEC_IN_MEMORY
1178
                                          | SEC_LINKER_CREATED));
1179
      if (!opd
1180
          || !bfd_set_section_alignment (abfd, opd, 3))
1181
        {
1182
          BFD_ASSERT (0);
1183
          return FALSE;
1184
        }
1185
 
1186
      hppa_info->opd_sec = opd;
1187
    }
1188
 
1189
  return TRUE;
1190
}
1191
 
1192
/* Create the PLT section.  */
1193
 
1194
static bfd_boolean
1195 225 jeremybenn
get_plt (bfd *abfd,
1196
         struct bfd_link_info *info ATTRIBUTE_UNUSED,
1197
         struct elf64_hppa_link_hash_table *hppa_info)
1198 24 jeremybenn
{
1199
  asection *plt;
1200
  bfd *dynobj;
1201
 
1202
  plt = hppa_info->plt_sec;
1203
  if (!plt)
1204
    {
1205
      dynobj = hppa_info->root.dynobj;
1206
      if (!dynobj)
1207
        hppa_info->root.dynobj = dynobj = abfd;
1208
 
1209
      plt = bfd_make_section_with_flags (dynobj, ".plt",
1210
                                         (SEC_ALLOC
1211
                                          | SEC_LOAD
1212
                                          | SEC_HAS_CONTENTS
1213
                                          | SEC_IN_MEMORY
1214
                                          | SEC_LINKER_CREATED));
1215
      if (!plt
1216
          || !bfd_set_section_alignment (abfd, plt, 3))
1217
        {
1218
          BFD_ASSERT (0);
1219
          return FALSE;
1220
        }
1221
 
1222
      hppa_info->plt_sec = plt;
1223
    }
1224
 
1225
  return TRUE;
1226
}
1227
 
1228
/* Create the DLT section.  */
1229
 
1230
static bfd_boolean
1231 225 jeremybenn
get_dlt (bfd *abfd,
1232
         struct bfd_link_info *info ATTRIBUTE_UNUSED,
1233
         struct elf64_hppa_link_hash_table *hppa_info)
1234 24 jeremybenn
{
1235
  asection *dlt;
1236
  bfd *dynobj;
1237
 
1238
  dlt = hppa_info->dlt_sec;
1239
  if (!dlt)
1240
    {
1241
      dynobj = hppa_info->root.dynobj;
1242
      if (!dynobj)
1243
        hppa_info->root.dynobj = dynobj = abfd;
1244
 
1245
      dlt = bfd_make_section_with_flags (dynobj, ".dlt",
1246
                                         (SEC_ALLOC
1247
                                          | SEC_LOAD
1248
                                          | SEC_HAS_CONTENTS
1249
                                          | SEC_IN_MEMORY
1250
                                          | SEC_LINKER_CREATED));
1251
      if (!dlt
1252
          || !bfd_set_section_alignment (abfd, dlt, 3))
1253
        {
1254
          BFD_ASSERT (0);
1255
          return FALSE;
1256
        }
1257
 
1258
      hppa_info->dlt_sec = dlt;
1259
    }
1260
 
1261
  return TRUE;
1262
}
1263
 
1264
/* Create the stubs section.  */
1265
 
1266
static bfd_boolean
1267 225 jeremybenn
get_stub (bfd *abfd,
1268
          struct bfd_link_info *info ATTRIBUTE_UNUSED,
1269
          struct elf64_hppa_link_hash_table *hppa_info)
1270 24 jeremybenn
{
1271
  asection *stub;
1272
  bfd *dynobj;
1273
 
1274
  stub = hppa_info->stub_sec;
1275
  if (!stub)
1276
    {
1277
      dynobj = hppa_info->root.dynobj;
1278
      if (!dynobj)
1279
        hppa_info->root.dynobj = dynobj = abfd;
1280
 
1281
      stub = bfd_make_section_with_flags (dynobj, ".stub",
1282
                                          (SEC_ALLOC | SEC_LOAD
1283
                                           | SEC_HAS_CONTENTS
1284
                                           | SEC_IN_MEMORY
1285
                                           | SEC_READONLY
1286
                                           | SEC_LINKER_CREATED));
1287
      if (!stub
1288
          || !bfd_set_section_alignment (abfd, stub, 3))
1289
        {
1290
          BFD_ASSERT (0);
1291
          return FALSE;
1292
        }
1293
 
1294
      hppa_info->stub_sec = stub;
1295
    }
1296
 
1297
  return TRUE;
1298
}
1299
 
1300
/* Create sections necessary for dynamic linking.  This is only a rough
1301
   cut and will likely change as we learn more about the somewhat
1302
   unusual dynamic linking scheme HP uses.
1303
 
1304
   .stub:
1305
        Contains code to implement cross-space calls.  The first time one
1306
        of the stubs is used it will call into the dynamic linker, later
1307
        calls will go straight to the target.
1308
 
1309
        The only stub we support right now looks like
1310
 
1311
        ldd OFFSET(%dp),%r1
1312
        bve %r0(%r1)
1313
        ldd OFFSET+8(%dp),%dp
1314
 
1315
        Other stubs may be needed in the future.  We may want the remove
1316
        the break/nop instruction.  It is only used right now to keep the
1317
        offset of a .plt entry and a .stub entry in sync.
1318
 
1319
   .dlt:
1320
        This is what most people call the .got.  HP used a different name.
1321
        Losers.
1322
 
1323
   .rela.dlt:
1324
        Relocations for the DLT.
1325
 
1326
   .plt:
1327
        Function pointers as address,gp pairs.
1328
 
1329
   .rela.plt:
1330
        Should contain dynamic IPLT (and EPLT?) relocations.
1331
 
1332
   .opd:
1333
        FPTRS
1334
 
1335
   .rela.opd:
1336
        EPLT relocations for symbols exported from shared libraries.  */
1337
 
1338
static bfd_boolean
1339 225 jeremybenn
elf64_hppa_create_dynamic_sections (bfd *abfd,
1340
                                    struct bfd_link_info *info)
1341 24 jeremybenn
{
1342
  asection *s;
1343
 
1344 225 jeremybenn
  if (! get_stub (abfd, info, hppa_link_hash_table (info)))
1345 24 jeremybenn
    return FALSE;
1346
 
1347 225 jeremybenn
  if (! get_dlt (abfd, info, hppa_link_hash_table (info)))
1348 24 jeremybenn
    return FALSE;
1349
 
1350 225 jeremybenn
  if (! get_plt (abfd, info, hppa_link_hash_table (info)))
1351 24 jeremybenn
    return FALSE;
1352
 
1353 225 jeremybenn
  if (! get_opd (abfd, info, hppa_link_hash_table (info)))
1354 24 jeremybenn
    return FALSE;
1355
 
1356
  s = bfd_make_section_with_flags (abfd, ".rela.dlt",
1357
                                   (SEC_ALLOC | SEC_LOAD
1358
                                    | SEC_HAS_CONTENTS
1359
                                    | SEC_IN_MEMORY
1360
                                    | SEC_READONLY
1361
                                    | SEC_LINKER_CREATED));
1362
  if (s == NULL
1363
      || !bfd_set_section_alignment (abfd, s, 3))
1364
    return FALSE;
1365 225 jeremybenn
  hppa_link_hash_table (info)->dlt_rel_sec = s;
1366 24 jeremybenn
 
1367
  s = bfd_make_section_with_flags (abfd, ".rela.plt",
1368
                                   (SEC_ALLOC | SEC_LOAD
1369
                                    | SEC_HAS_CONTENTS
1370
                                    | SEC_IN_MEMORY
1371
                                    | SEC_READONLY
1372
                                    | SEC_LINKER_CREATED));
1373
  if (s == NULL
1374
      || !bfd_set_section_alignment (abfd, s, 3))
1375
    return FALSE;
1376 225 jeremybenn
  hppa_link_hash_table (info)->plt_rel_sec = s;
1377 24 jeremybenn
 
1378
  s = bfd_make_section_with_flags (abfd, ".rela.data",
1379
                                   (SEC_ALLOC | SEC_LOAD
1380
                                    | SEC_HAS_CONTENTS
1381
                                    | SEC_IN_MEMORY
1382
                                    | SEC_READONLY
1383
                                    | SEC_LINKER_CREATED));
1384
  if (s == NULL
1385
      || !bfd_set_section_alignment (abfd, s, 3))
1386
    return FALSE;
1387 225 jeremybenn
  hppa_link_hash_table (info)->other_rel_sec = s;
1388 24 jeremybenn
 
1389
  s = bfd_make_section_with_flags (abfd, ".rela.opd",
1390
                                   (SEC_ALLOC | SEC_LOAD
1391
                                    | SEC_HAS_CONTENTS
1392
                                    | SEC_IN_MEMORY
1393
                                    | SEC_READONLY
1394
                                    | SEC_LINKER_CREATED));
1395
  if (s == NULL
1396
      || !bfd_set_section_alignment (abfd, s, 3))
1397
    return FALSE;
1398 225 jeremybenn
  hppa_link_hash_table (info)->opd_rel_sec = s;
1399 24 jeremybenn
 
1400
  return TRUE;
1401
}
1402
 
1403
/* Allocate dynamic relocations for those symbols that turned out
1404
   to be dynamic.  */
1405
 
1406
static bfd_boolean
1407 225 jeremybenn
allocate_dynrel_entries (struct elf_link_hash_entry *eh, void *data)
1408 24 jeremybenn
{
1409 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1410 24 jeremybenn
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
1411
  struct elf64_hppa_link_hash_table *hppa_info;
1412
  struct elf64_hppa_dyn_reloc_entry *rent;
1413
  bfd_boolean dynamic_symbol, shared;
1414
 
1415 225 jeremybenn
  hppa_info = hppa_link_hash_table (x->info);
1416
  dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, x->info);
1417 24 jeremybenn
  shared = x->info->shared;
1418
 
1419
  /* We may need to allocate relocations for a non-dynamic symbol
1420
     when creating a shared library.  */
1421
  if (!dynamic_symbol && !shared)
1422
    return TRUE;
1423
 
1424
  /* Take care of the normal data relocations.  */
1425
 
1426 225 jeremybenn
  for (rent = hh->reloc_entries; rent; rent = rent->next)
1427 24 jeremybenn
    {
1428
      /* Allocate one iff we are building a shared library, the relocation
1429
         isn't a R_PARISC_FPTR64, or we don't want an opd entry.  */
1430 225 jeremybenn
      if (!shared && rent->type == R_PARISC_FPTR64 && hh->want_opd)
1431 24 jeremybenn
        continue;
1432
 
1433
      hppa_info->other_rel_sec->size += sizeof (Elf64_External_Rela);
1434
 
1435
      /* Make sure this symbol gets into the dynamic symbol table if it is
1436
         not already recorded.  ?!? This should not be in the loop since
1437
         the symbol need only be added once.  */
1438 225 jeremybenn
      if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI)
1439 24 jeremybenn
        if (!bfd_elf_link_record_local_dynamic_symbol
1440 225 jeremybenn
            (x->info, rent->sec->owner, hh->sym_indx))
1441 24 jeremybenn
          return FALSE;
1442
    }
1443
 
1444
  /* Take care of the GOT and PLT relocations.  */
1445
 
1446 225 jeremybenn
  if ((dynamic_symbol || shared) && hh->want_dlt)
1447 24 jeremybenn
    hppa_info->dlt_rel_sec->size += sizeof (Elf64_External_Rela);
1448
 
1449
  /* If we are building a shared library, then every symbol that has an
1450
     opd entry will need an EPLT relocation to relocate the symbol's address
1451
     and __gp value based on the runtime load address.  */
1452 225 jeremybenn
  if (shared && hh->want_opd)
1453 24 jeremybenn
    hppa_info->opd_rel_sec->size += sizeof (Elf64_External_Rela);
1454
 
1455 225 jeremybenn
  if (hh->want_plt && dynamic_symbol)
1456 24 jeremybenn
    {
1457
      bfd_size_type t = 0;
1458
 
1459
      /* Dynamic symbols get one IPLT relocation.  Local symbols in
1460
         shared libraries get two REL relocations.  Local symbols in
1461
         main applications get nothing.  */
1462
      if (dynamic_symbol)
1463
        t = sizeof (Elf64_External_Rela);
1464
      else if (shared)
1465
        t = 2 * sizeof (Elf64_External_Rela);
1466
 
1467
      hppa_info->plt_rel_sec->size += t;
1468
    }
1469
 
1470
  return TRUE;
1471
}
1472
 
1473
/* Adjust a symbol defined by a dynamic object and referenced by a
1474
   regular object.  */
1475
 
1476
static bfd_boolean
1477 225 jeremybenn
elf64_hppa_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1478
                                  struct elf_link_hash_entry *eh)
1479 24 jeremybenn
{
1480
  /* ??? Undefined symbols with PLT entries should be re-defined
1481
     to be the PLT entry.  */
1482
 
1483
  /* If this is a weak symbol, and there is a real definition, the
1484
     processor independent code will have arranged for us to see the
1485
     real definition first, and we can just use the same value.  */
1486 225 jeremybenn
  if (eh->u.weakdef != NULL)
1487 24 jeremybenn
    {
1488 225 jeremybenn
      BFD_ASSERT (eh->u.weakdef->root.type == bfd_link_hash_defined
1489
                  || eh->u.weakdef->root.type == bfd_link_hash_defweak);
1490
      eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1491
      eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
1492 24 jeremybenn
      return TRUE;
1493
    }
1494
 
1495
  /* If this is a reference to a symbol defined by a dynamic object which
1496
     is not a function, we might allocate the symbol in our .dynbss section
1497
     and allocate a COPY dynamic relocation.
1498
 
1499
     But PA64 code is canonically PIC, so as a rule we can avoid this sort
1500
     of hackery.  */
1501
 
1502
  return TRUE;
1503
}
1504
 
1505
/* This function is called via elf_link_hash_traverse to mark millicode
1506
   symbols with a dynindx of -1 and to remove the string table reference
1507
   from the dynamic symbol table.  If the symbol is not a millicode symbol,
1508
   elf64_hppa_mark_exported_functions is called.  */
1509
 
1510
static bfd_boolean
1511 225 jeremybenn
elf64_hppa_mark_milli_and_exported_functions (struct elf_link_hash_entry *eh,
1512
                                              void *data)
1513 24 jeremybenn
{
1514 225 jeremybenn
  struct elf_link_hash_entry *elf = eh;
1515 24 jeremybenn
  struct bfd_link_info *info = (struct bfd_link_info *)data;
1516
 
1517
  if (elf->root.type == bfd_link_hash_warning)
1518
    elf = (struct elf_link_hash_entry *) elf->root.u.i.link;
1519
 
1520
  if (elf->type == STT_PARISC_MILLI)
1521
    {
1522
      if (elf->dynindx != -1)
1523
        {
1524
          elf->dynindx = -1;
1525
          _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1526
                                  elf->dynstr_index);
1527
        }
1528
      return TRUE;
1529
    }
1530
 
1531 225 jeremybenn
  return elf64_hppa_mark_exported_functions (eh, data);
1532 24 jeremybenn
}
1533
 
1534
/* Set the final sizes of the dynamic sections and allocate memory for
1535
   the contents of our special sections.  */
1536
 
1537
static bfd_boolean
1538 225 jeremybenn
elf64_hppa_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
1539 24 jeremybenn
{
1540 225 jeremybenn
  struct elf64_hppa_link_hash_table *hppa_info;
1541
  struct elf64_hppa_allocate_data data;
1542 24 jeremybenn
  bfd *dynobj;
1543 225 jeremybenn
  bfd *ibfd;
1544
  asection *sec;
1545 24 jeremybenn
  bfd_boolean plt;
1546
  bfd_boolean relocs;
1547
  bfd_boolean reltext;
1548
 
1549 225 jeremybenn
  hppa_info = hppa_link_hash_table (info);
1550 24 jeremybenn
 
1551
  dynobj = elf_hash_table (info)->dynobj;
1552
  BFD_ASSERT (dynobj != NULL);
1553
 
1554
  /* Mark each function this program exports so that we will allocate
1555
     space in the .opd section for each function's FPTR.  If we are
1556
     creating dynamic sections, change the dynamic index of millicode
1557
     symbols to -1 and remove them from the string table for .dynstr.
1558
 
1559
     We have to traverse the main linker hash table since we have to
1560
     find functions which may not have been mentioned in any relocs.  */
1561
  elf_link_hash_traverse (elf_hash_table (info),
1562
                          (elf_hash_table (info)->dynamic_sections_created
1563
                           ? elf64_hppa_mark_milli_and_exported_functions
1564
                           : elf64_hppa_mark_exported_functions),
1565
                          info);
1566
 
1567
  if (elf_hash_table (info)->dynamic_sections_created)
1568
    {
1569
      /* Set the contents of the .interp section to the interpreter.  */
1570
      if (info->executable)
1571
        {
1572 225 jeremybenn
          sec = bfd_get_section_by_name (dynobj, ".interp");
1573
          BFD_ASSERT (sec != NULL);
1574
          sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
1575
          sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1576 24 jeremybenn
        }
1577
    }
1578
  else
1579
    {
1580
      /* We may have created entries in the .rela.got section.
1581
         However, if we are not creating the dynamic sections, we will
1582
         not actually use these entries.  Reset the size of .rela.dlt,
1583
         which will cause it to get stripped from the output file
1584
         below.  */
1585 225 jeremybenn
      sec = bfd_get_section_by_name (dynobj, ".rela.dlt");
1586
      if (sec != NULL)
1587
        sec->size = 0;
1588 24 jeremybenn
    }
1589
 
1590 225 jeremybenn
  /* Set up DLT, PLT and OPD offsets for local syms, and space for local
1591
     dynamic relocs.  */
1592
  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1593
    {
1594
      bfd_signed_vma *local_dlt;
1595
      bfd_signed_vma *end_local_dlt;
1596
      bfd_signed_vma *local_plt;
1597
      bfd_signed_vma *end_local_plt;
1598
      bfd_signed_vma *local_opd;
1599
      bfd_signed_vma *end_local_opd;
1600
      bfd_size_type locsymcount;
1601
      Elf_Internal_Shdr *symtab_hdr;
1602
      asection *srel;
1603
 
1604
      if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
1605
        continue;
1606
 
1607
      for (sec = ibfd->sections; sec != NULL; sec = sec->next)
1608
        {
1609
          struct elf64_hppa_dyn_reloc_entry *hdh_p;
1610
 
1611
          for (hdh_p = ((struct elf64_hppa_dyn_reloc_entry *)
1612
                    elf_section_data (sec)->local_dynrel);
1613
               hdh_p != NULL;
1614
               hdh_p = hdh_p->next)
1615
            {
1616
              if (!bfd_is_abs_section (hdh_p->sec)
1617
                  && bfd_is_abs_section (hdh_p->sec->output_section))
1618
                {
1619
                  /* Input section has been discarded, either because
1620
                     it is a copy of a linkonce section or due to
1621
                     linker script /DISCARD/, so we'll be discarding
1622
                     the relocs too.  */
1623
                }
1624
              else if (hdh_p->count != 0)
1625
                {
1626
                  srel = elf_section_data (hdh_p->sec)->sreloc;
1627
                  srel->size += hdh_p->count * sizeof (Elf64_External_Rela);
1628
                  if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
1629
                    info->flags |= DF_TEXTREL;
1630
                }
1631
            }
1632
        }
1633
 
1634
      local_dlt = elf_local_got_refcounts (ibfd);
1635
      if (!local_dlt)
1636
        continue;
1637
 
1638
      symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
1639
      locsymcount = symtab_hdr->sh_info;
1640
      end_local_dlt = local_dlt + locsymcount;
1641
      sec = hppa_info->dlt_sec;
1642
      srel = hppa_info->dlt_rel_sec;
1643
      for (; local_dlt < end_local_dlt; ++local_dlt)
1644
        {
1645
          if (*local_dlt > 0)
1646
            {
1647
              *local_dlt = sec->size;
1648
              sec->size += DLT_ENTRY_SIZE;
1649
              if (info->shared)
1650
                {
1651
                  srel->size += sizeof (Elf64_External_Rela);
1652
                }
1653
            }
1654
          else
1655
            *local_dlt = (bfd_vma) -1;
1656
        }
1657
 
1658
      local_plt = end_local_dlt;
1659
      end_local_plt = local_plt + locsymcount;
1660
      if (! hppa_info->root.dynamic_sections_created)
1661
        {
1662
          /* Won't be used, but be safe.  */
1663
          for (; local_plt < end_local_plt; ++local_plt)
1664
            *local_plt = (bfd_vma) -1;
1665
        }
1666
      else
1667
        {
1668
          sec = hppa_info->plt_sec;
1669
          srel = hppa_info->plt_rel_sec;
1670
          for (; local_plt < end_local_plt; ++local_plt)
1671
            {
1672
              if (*local_plt > 0)
1673
                {
1674
                  *local_plt = sec->size;
1675
                  sec->size += PLT_ENTRY_SIZE;
1676
                  if (info->shared)
1677
                    srel->size += sizeof (Elf64_External_Rela);
1678
                }
1679
              else
1680
                *local_plt = (bfd_vma) -1;
1681
            }
1682
        }
1683
 
1684
      local_opd = end_local_plt;
1685
      end_local_opd = local_opd + locsymcount;
1686
      if (! hppa_info->root.dynamic_sections_created)
1687
        {
1688
          /* Won't be used, but be safe.  */
1689
          for (; local_opd < end_local_opd; ++local_opd)
1690
            *local_opd = (bfd_vma) -1;
1691
        }
1692
      else
1693
        {
1694
          sec = hppa_info->opd_sec;
1695
          srel = hppa_info->opd_rel_sec;
1696
          for (; local_opd < end_local_opd; ++local_opd)
1697
            {
1698
              if (*local_opd > 0)
1699
                {
1700
                  *local_opd = sec->size;
1701
                  sec->size += OPD_ENTRY_SIZE;
1702
                  if (info->shared)
1703
                    srel->size += sizeof (Elf64_External_Rela);
1704
                }
1705
              else
1706
                *local_opd = (bfd_vma) -1;
1707
            }
1708
        }
1709
    }
1710
 
1711 24 jeremybenn
  /* Allocate the GOT entries.  */
1712
 
1713
  data.info = info;
1714 225 jeremybenn
  if (hppa_info->dlt_sec)
1715 24 jeremybenn
    {
1716 225 jeremybenn
      data.ofs = hppa_info->dlt_sec->size;
1717
      elf_link_hash_traverse (elf_hash_table (info),
1718
                              allocate_global_data_dlt, &data);
1719 24 jeremybenn
      hppa_info->dlt_sec->size = data.ofs;
1720 225 jeremybenn
    }
1721 24 jeremybenn
 
1722 225 jeremybenn
  if (hppa_info->plt_sec)
1723
    {
1724
      data.ofs = hppa_info->plt_sec->size;
1725
      elf_link_hash_traverse (elf_hash_table (info),
1726
                              allocate_global_data_plt, &data);
1727 24 jeremybenn
      hppa_info->plt_sec->size = data.ofs;
1728 225 jeremybenn
    }
1729 24 jeremybenn
 
1730 225 jeremybenn
  if (hppa_info->stub_sec)
1731
    {
1732 24 jeremybenn
      data.ofs = 0x0;
1733 225 jeremybenn
      elf_link_hash_traverse (elf_hash_table (info),
1734
                              allocate_global_data_stub, &data);
1735 24 jeremybenn
      hppa_info->stub_sec->size = data.ofs;
1736
    }
1737
 
1738
  /* Allocate space for entries in the .opd section.  */
1739 225 jeremybenn
  if (hppa_info->opd_sec)
1740 24 jeremybenn
    {
1741 225 jeremybenn
      data.ofs = hppa_info->opd_sec->size;
1742
      elf_link_hash_traverse (elf_hash_table (info),
1743
                              allocate_global_data_opd, &data);
1744 24 jeremybenn
      hppa_info->opd_sec->size = data.ofs;
1745
    }
1746
 
1747
  /* Now allocate space for dynamic relocations, if necessary.  */
1748
  if (hppa_info->root.dynamic_sections_created)
1749 225 jeremybenn
    elf_link_hash_traverse (elf_hash_table (info),
1750
                            allocate_dynrel_entries, &data);
1751 24 jeremybenn
 
1752
  /* The sizes of all the sections are set.  Allocate memory for them.  */
1753
  plt = FALSE;
1754
  relocs = FALSE;
1755
  reltext = FALSE;
1756 225 jeremybenn
  for (sec = dynobj->sections; sec != NULL; sec = sec->next)
1757 24 jeremybenn
    {
1758
      const char *name;
1759
 
1760 225 jeremybenn
      if ((sec->flags & SEC_LINKER_CREATED) == 0)
1761 24 jeremybenn
        continue;
1762
 
1763
      /* It's OK to base decisions on the section name, because none
1764
         of the dynobj section names depend upon the input files.  */
1765 225 jeremybenn
      name = bfd_get_section_name (dynobj, sec);
1766 24 jeremybenn
 
1767
      if (strcmp (name, ".plt") == 0)
1768
        {
1769
          /* Remember whether there is a PLT.  */
1770 225 jeremybenn
          plt = sec->size != 0;
1771 24 jeremybenn
        }
1772
      else if (strcmp (name, ".opd") == 0
1773
               || CONST_STRNEQ (name, ".dlt")
1774
               || strcmp (name, ".stub") == 0
1775
               || strcmp (name, ".got") == 0)
1776
        {
1777
          /* Strip this section if we don't need it; see the comment below.  */
1778
        }
1779
      else if (CONST_STRNEQ (name, ".rela"))
1780
        {
1781 225 jeremybenn
          if (sec->size != 0)
1782 24 jeremybenn
            {
1783
              asection *target;
1784
 
1785
              /* Remember whether there are any reloc sections other
1786
                 than .rela.plt.  */
1787
              if (strcmp (name, ".rela.plt") != 0)
1788
                {
1789
                  const char *outname;
1790
 
1791
                  relocs = TRUE;
1792
 
1793
                  /* If this relocation section applies to a read only
1794
                     section, then we probably need a DT_TEXTREL
1795
                     entry.  The entries in the .rela.plt section
1796
                     really apply to the .got section, which we
1797
                     created ourselves and so know is not readonly.  */
1798
                  outname = bfd_get_section_name (output_bfd,
1799 225 jeremybenn
                                                  sec->output_section);
1800 24 jeremybenn
                  target = bfd_get_section_by_name (output_bfd, outname + 4);
1801
                  if (target != NULL
1802
                      && (target->flags & SEC_READONLY) != 0
1803
                      && (target->flags & SEC_ALLOC) != 0)
1804
                    reltext = TRUE;
1805
                }
1806
 
1807
              /* We use the reloc_count field as a counter if we need
1808
                 to copy relocs into the output file.  */
1809 225 jeremybenn
              sec->reloc_count = 0;
1810 24 jeremybenn
            }
1811
        }
1812
      else
1813
        {
1814
          /* It's not one of our sections, so don't allocate space.  */
1815
          continue;
1816
        }
1817
 
1818 225 jeremybenn
      if (sec->size == 0)
1819 24 jeremybenn
        {
1820
          /* If we don't need this section, strip it from the
1821
             output file.  This is mostly to handle .rela.bss and
1822
             .rela.plt.  We must create both sections in
1823
             create_dynamic_sections, because they must be created
1824
             before the linker maps input sections to output
1825
             sections.  The linker does that before
1826
             adjust_dynamic_symbol is called, and it is that
1827
             function which decides whether anything needs to go
1828
             into these sections.  */
1829 225 jeremybenn
          sec->flags |= SEC_EXCLUDE;
1830 24 jeremybenn
          continue;
1831
        }
1832
 
1833 225 jeremybenn
      if ((sec->flags & SEC_HAS_CONTENTS) == 0)
1834 24 jeremybenn
        continue;
1835
 
1836
      /* Allocate memory for the section contents if it has not
1837
         been allocated already.  We use bfd_zalloc here in case
1838
         unused entries are not reclaimed before the section's
1839
         contents are written out.  This should not happen, but this
1840
         way if it does, we get a R_PARISC_NONE reloc instead of
1841
         garbage.  */
1842 225 jeremybenn
      if (sec->contents == NULL)
1843 24 jeremybenn
        {
1844 225 jeremybenn
          sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
1845
          if (sec->contents == NULL)
1846 24 jeremybenn
            return FALSE;
1847
        }
1848
    }
1849
 
1850
  if (elf_hash_table (info)->dynamic_sections_created)
1851
    {
1852
      /* Always create a DT_PLTGOT.  It actually has nothing to do with
1853
         the PLT, it is how we communicate the __gp value of a load
1854
         module to the dynamic linker.  */
1855
#define add_dynamic_entry(TAG, VAL) \
1856
  _bfd_elf_add_dynamic_entry (info, TAG, VAL)
1857
 
1858
      if (!add_dynamic_entry (DT_HP_DLD_FLAGS, 0)
1859
          || !add_dynamic_entry (DT_PLTGOT, 0))
1860
        return FALSE;
1861
 
1862
      /* Add some entries to the .dynamic section.  We fill in the
1863
         values later, in elf64_hppa_finish_dynamic_sections, but we
1864
         must add the entries now so that we get the correct size for
1865
         the .dynamic section.  The DT_DEBUG entry is filled in by the
1866
         dynamic linker and used by the debugger.  */
1867
      if (! info->shared)
1868
        {
1869
          if (!add_dynamic_entry (DT_DEBUG, 0)
1870
              || !add_dynamic_entry (DT_HP_DLD_HOOK, 0)
1871
              || !add_dynamic_entry (DT_HP_LOAD_MAP, 0))
1872
            return FALSE;
1873
        }
1874
 
1875
      /* Force DT_FLAGS to always be set.
1876
         Required by HPUX 11.00 patch PHSS_26559.  */
1877
      if (!add_dynamic_entry (DT_FLAGS, (info)->flags))
1878
        return FALSE;
1879
 
1880
      if (plt)
1881
        {
1882
          if (!add_dynamic_entry (DT_PLTRELSZ, 0)
1883
              || !add_dynamic_entry (DT_PLTREL, DT_RELA)
1884
              || !add_dynamic_entry (DT_JMPREL, 0))
1885
            return FALSE;
1886
        }
1887
 
1888
      if (relocs)
1889
        {
1890
          if (!add_dynamic_entry (DT_RELA, 0)
1891
              || !add_dynamic_entry (DT_RELASZ, 0)
1892
              || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
1893
            return FALSE;
1894
        }
1895
 
1896
      if (reltext)
1897
        {
1898
          if (!add_dynamic_entry (DT_TEXTREL, 0))
1899
            return FALSE;
1900
          info->flags |= DF_TEXTREL;
1901
        }
1902
    }
1903
#undef add_dynamic_entry
1904
 
1905
  return TRUE;
1906
}
1907
 
1908
/* Called after we have output the symbol into the dynamic symbol
1909
   table, but before we output the symbol into the normal symbol
1910
   table.
1911
 
1912
   For some symbols we had to change their address when outputting
1913
   the dynamic symbol table.  We undo that change here so that
1914
   the symbols have their expected value in the normal symbol
1915
   table.  Ick.  */
1916
 
1917 225 jeremybenn
static int
1918
elf64_hppa_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1919
                                    const char *name,
1920
                                    Elf_Internal_Sym *sym,
1921
                                    asection *input_sec ATTRIBUTE_UNUSED,
1922
                                    struct elf_link_hash_entry *eh)
1923 24 jeremybenn
{
1924 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1925 24 jeremybenn
 
1926
  /* We may be called with the file symbol or section symbols.
1927
     They never need munging, so it is safe to ignore them.  */
1928 225 jeremybenn
  if (!name || !eh)
1929
    return 1;
1930 24 jeremybenn
 
1931
  /* Function symbols for which we created .opd entries *may* have been
1932
     munged by finish_dynamic_symbol and have to be un-munged here.
1933
 
1934
     Note that finish_dynamic_symbol sometimes turns dynamic symbols
1935
     into non-dynamic ones, so we initialize st_shndx to -1 in
1936
     mark_exported_functions and check to see if it was overwritten
1937 225 jeremybenn
     here instead of just checking eh->dynindx.  */
1938
  if (hh->want_opd && hh->st_shndx != -1)
1939 24 jeremybenn
    {
1940
      /* Restore the saved value and section index.  */
1941 225 jeremybenn
      sym->st_value = hh->st_value;
1942
      sym->st_shndx = hh->st_shndx;
1943 24 jeremybenn
    }
1944
 
1945 225 jeremybenn
  return 1;
1946 24 jeremybenn
}
1947
 
1948
/* Finish up dynamic symbol handling.  We set the contents of various
1949
   dynamic sections here.  */
1950
 
1951
static bfd_boolean
1952 225 jeremybenn
elf64_hppa_finish_dynamic_symbol (bfd *output_bfd,
1953
                                  struct bfd_link_info *info,
1954
                                  struct elf_link_hash_entry *eh,
1955
                                  Elf_Internal_Sym *sym)
1956 24 jeremybenn
{
1957 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1958 24 jeremybenn
  asection *stub, *splt, *sdlt, *sopd, *spltrel, *sdltrel;
1959
  struct elf64_hppa_link_hash_table *hppa_info;
1960
 
1961 225 jeremybenn
  hppa_info = hppa_link_hash_table (info);
1962 24 jeremybenn
 
1963
  stub = hppa_info->stub_sec;
1964
  splt = hppa_info->plt_sec;
1965
  sdlt = hppa_info->dlt_sec;
1966
  sopd = hppa_info->opd_sec;
1967
  spltrel = hppa_info->plt_rel_sec;
1968
  sdltrel = hppa_info->dlt_rel_sec;
1969
 
1970
  /* Incredible.  It is actually necessary to NOT use the symbol's real
1971
     value when building the dynamic symbol table for a shared library.
1972
     At least for symbols that refer to functions.
1973
 
1974
     We will store a new value and section index into the symbol long
1975
     enough to output it into the dynamic symbol table, then we restore
1976
     the original values (in elf64_hppa_link_output_symbol_hook).  */
1977 225 jeremybenn
  if (hh->want_opd)
1978 24 jeremybenn
    {
1979
      BFD_ASSERT (sopd != NULL);
1980
 
1981
      /* Save away the original value and section index so that we
1982
         can restore them later.  */
1983 225 jeremybenn
      hh->st_value = sym->st_value;
1984
      hh->st_shndx = sym->st_shndx;
1985 24 jeremybenn
 
1986
      /* For the dynamic symbol table entry, we want the value to be
1987
         address of this symbol's entry within the .opd section.  */
1988 225 jeremybenn
      sym->st_value = (hh->opd_offset
1989 24 jeremybenn
                       + sopd->output_offset
1990
                       + sopd->output_section->vma);
1991
      sym->st_shndx = _bfd_elf_section_from_bfd_section (output_bfd,
1992
                                                         sopd->output_section);
1993
    }
1994
 
1995
  /* Initialize a .plt entry if requested.  */
1996 225 jeremybenn
  if (hh->want_plt
1997
      && elf64_hppa_dynamic_symbol_p (eh, info))
1998 24 jeremybenn
    {
1999
      bfd_vma value;
2000
      Elf_Internal_Rela rel;
2001
      bfd_byte *loc;
2002
 
2003
      BFD_ASSERT (splt != NULL && spltrel != NULL);
2004
 
2005
      /* We do not actually care about the value in the PLT entry
2006
         if we are creating a shared library and the symbol is
2007
         still undefined, we create a dynamic relocation to fill
2008
         in the correct value.  */
2009 225 jeremybenn
      if (info->shared && eh->root.type == bfd_link_hash_undefined)
2010 24 jeremybenn
        value = 0;
2011
      else
2012 225 jeremybenn
        value = (eh->root.u.def.value + eh->root.u.def.section->vma);
2013 24 jeremybenn
 
2014
      /* Fill in the entry in the procedure linkage table.
2015
 
2016
         The format of a plt entry is
2017
         <funcaddr> <__gp>.
2018
 
2019
         plt_offset is the offset within the PLT section at which to
2020
         install the PLT entry.
2021
 
2022
         We are modifying the in-memory PLT contents here, so we do not add
2023
         in the output_offset of the PLT section.  */
2024
 
2025 225 jeremybenn
      bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset);
2026 24 jeremybenn
      value = _bfd_get_gp_value (splt->output_section->owner);
2027 225 jeremybenn
      bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset + 0x8);
2028 24 jeremybenn
 
2029
      /* Create a dynamic IPLT relocation for this entry.
2030
 
2031
         We are creating a relocation in the output file's PLT section,
2032
         which is included within the DLT secton.  So we do need to include
2033
         the PLT's output_offset in the computation of the relocation's
2034
         address.  */
2035 225 jeremybenn
      rel.r_offset = (hh->plt_offset + splt->output_offset
2036 24 jeremybenn
                      + splt->output_section->vma);
2037 225 jeremybenn
      rel.r_info = ELF64_R_INFO (hh->eh.dynindx, R_PARISC_IPLT);
2038 24 jeremybenn
      rel.r_addend = 0;
2039
 
2040
      loc = spltrel->contents;
2041
      loc += spltrel->reloc_count++ * sizeof (Elf64_External_Rela);
2042
      bfd_elf64_swap_reloca_out (splt->output_section->owner, &rel, loc);
2043
    }
2044
 
2045
  /* Initialize an external call stub entry if requested.  */
2046 225 jeremybenn
  if (hh->want_stub
2047
      && elf64_hppa_dynamic_symbol_p (eh, info))
2048 24 jeremybenn
    {
2049
      bfd_vma value;
2050
      int insn;
2051
      unsigned int max_offset;
2052
 
2053
      BFD_ASSERT (stub != NULL);
2054
 
2055
      /* Install the generic stub template.
2056
 
2057
         We are modifying the contents of the stub section, so we do not
2058
         need to include the stub section's output_offset here.  */
2059 225 jeremybenn
      memcpy (stub->contents + hh->stub_offset, plt_stub, sizeof (plt_stub));
2060 24 jeremybenn
 
2061
      /* Fix up the first ldd instruction.
2062
 
2063
         We are modifying the contents of the STUB section in memory,
2064
         so we do not need to include its output offset in this computation.
2065
 
2066
         Note the plt_offset value is the value of the PLT entry relative to
2067
         the start of the PLT section.  These instructions will reference
2068
         data relative to the value of __gp, which may not necessarily have
2069
         the same address as the start of the PLT section.
2070
 
2071
         gp_offset contains the offset of __gp within the PLT section.  */
2072 225 jeremybenn
      value = hh->plt_offset - hppa_info->gp_offset;
2073 24 jeremybenn
 
2074 225 jeremybenn
      insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset);
2075 24 jeremybenn
      if (output_bfd->arch_info->mach >= 25)
2076
        {
2077
          /* Wide mode allows 16 bit offsets.  */
2078
          max_offset = 32768;
2079
          insn &= ~ 0xfff1;
2080
          insn |= re_assemble_16 ((int) value);
2081
        }
2082
      else
2083
        {
2084
          max_offset = 8192;
2085
          insn &= ~ 0x3ff1;
2086
          insn |= re_assemble_14 ((int) value);
2087
        }
2088
 
2089
      if ((value & 7) || value + max_offset >= 2*max_offset - 8)
2090
        {
2091
          (*_bfd_error_handler) (_("stub entry for %s cannot load .plt, dp offset = %ld"),
2092 225 jeremybenn
                                 hh->eh.root.root.string,
2093 24 jeremybenn
                                 (long) value);
2094
          return FALSE;
2095
        }
2096
 
2097
      bfd_put_32 (stub->owner, (bfd_vma) insn,
2098 225 jeremybenn
                  stub->contents + hh->stub_offset);
2099 24 jeremybenn
 
2100
      /* Fix up the second ldd instruction.  */
2101
      value += 8;
2102 225 jeremybenn
      insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset + 8);
2103 24 jeremybenn
      if (output_bfd->arch_info->mach >= 25)
2104
        {
2105
          insn &= ~ 0xfff1;
2106
          insn |= re_assemble_16 ((int) value);
2107
        }
2108
      else
2109
        {
2110
          insn &= ~ 0x3ff1;
2111
          insn |= re_assemble_14 ((int) value);
2112
        }
2113
      bfd_put_32 (stub->owner, (bfd_vma) insn,
2114 225 jeremybenn
                  stub->contents + hh->stub_offset + 8);
2115 24 jeremybenn
    }
2116
 
2117
  return TRUE;
2118
}
2119
 
2120
/* The .opd section contains FPTRs for each function this file
2121
   exports.  Initialize the FPTR entries.  */
2122
 
2123
static bfd_boolean
2124 225 jeremybenn
elf64_hppa_finalize_opd (struct elf_link_hash_entry *eh, void *data)
2125 24 jeremybenn
{
2126 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
2127 24 jeremybenn
  struct bfd_link_info *info = (struct bfd_link_info *)data;
2128
  struct elf64_hppa_link_hash_table *hppa_info;
2129
  asection *sopd;
2130
  asection *sopdrel;
2131
 
2132 225 jeremybenn
  hppa_info = hppa_link_hash_table (info);
2133 24 jeremybenn
  sopd = hppa_info->opd_sec;
2134
  sopdrel = hppa_info->opd_rel_sec;
2135
 
2136 225 jeremybenn
  if (hh->want_opd)
2137 24 jeremybenn
    {
2138
      bfd_vma value;
2139
 
2140
      /* The first two words of an .opd entry are zero.
2141
 
2142
         We are modifying the contents of the OPD section in memory, so we
2143
         do not need to include its output offset in this computation.  */
2144 225 jeremybenn
      memset (sopd->contents + hh->opd_offset, 0, 16);
2145 24 jeremybenn
 
2146 225 jeremybenn
      value = (eh->root.u.def.value
2147
               + eh->root.u.def.section->output_section->vma
2148
               + eh->root.u.def.section->output_offset);
2149 24 jeremybenn
 
2150
      /* The next word is the address of the function.  */
2151 225 jeremybenn
      bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 16);
2152 24 jeremybenn
 
2153
      /* The last word is our local __gp value.  */
2154
      value = _bfd_get_gp_value (sopd->output_section->owner);
2155 225 jeremybenn
      bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 24);
2156 24 jeremybenn
    }
2157
 
2158
  /* If we are generating a shared library, we must generate EPLT relocations
2159
     for each entry in the .opd, even for static functions (they may have
2160
     had their address taken).  */
2161 225 jeremybenn
  if (info->shared && hh->want_opd)
2162 24 jeremybenn
    {
2163
      Elf_Internal_Rela rel;
2164
      bfd_byte *loc;
2165
      int dynindx;
2166
 
2167
      /* We may need to do a relocation against a local symbol, in
2168
         which case we have to look up it's dynamic symbol index off
2169
         the local symbol hash table.  */
2170 225 jeremybenn
      if (eh->dynindx != -1)
2171
        dynindx = eh->dynindx;
2172 24 jeremybenn
      else
2173
        dynindx
2174 225 jeremybenn
          = _bfd_elf_link_lookup_local_dynindx (info, hh->owner,
2175
                                                hh->sym_indx);
2176 24 jeremybenn
 
2177
      /* The offset of this relocation is the absolute address of the
2178
         .opd entry for this symbol.  */
2179 225 jeremybenn
      rel.r_offset = (hh->opd_offset + sopd->output_offset
2180 24 jeremybenn
                      + sopd->output_section->vma);
2181
 
2182
      /* If H is non-null, then we have an external symbol.
2183
 
2184
         It is imperative that we use a different dynamic symbol for the
2185
         EPLT relocation if the symbol has global scope.
2186
 
2187
         In the dynamic symbol table, the function symbol will have a value
2188
         which is address of the function's .opd entry.
2189
 
2190
         Thus, we can not use that dynamic symbol for the EPLT relocation
2191
         (if we did, the data in the .opd would reference itself rather
2192
         than the actual address of the function).  Instead we have to use
2193
         a new dynamic symbol which has the same value as the original global
2194
         function symbol.
2195
 
2196
         We prefix the original symbol with a "." and use the new symbol in
2197
         the EPLT relocation.  This new symbol has already been recorded in
2198
         the symbol table, we just have to look it up and use it.
2199
 
2200
         We do not have such problems with static functions because we do
2201
         not make their addresses in the dynamic symbol table point to
2202
         the .opd entry.  Ultimately this should be safe since a static
2203
         function can not be directly referenced outside of its shared
2204
         library.
2205
 
2206
         We do have to play similar games for FPTR relocations in shared
2207
         libraries, including those for static symbols.  See the FPTR
2208
         handling in elf64_hppa_finalize_dynreloc.  */
2209 225 jeremybenn
      if (eh)
2210 24 jeremybenn
        {
2211
          char *new_name;
2212
          struct elf_link_hash_entry *nh;
2213
 
2214 225 jeremybenn
          new_name = alloca (strlen (eh->root.root.string) + 2);
2215 24 jeremybenn
          new_name[0] = '.';
2216 225 jeremybenn
          strcpy (new_name + 1, eh->root.root.string);
2217 24 jeremybenn
 
2218
          nh = elf_link_hash_lookup (elf_hash_table (info),
2219 225 jeremybenn
                                     new_name, TRUE, TRUE, FALSE);
2220
 
2221 24 jeremybenn
          /* All we really want from the new symbol is its dynamic
2222
             symbol index.  */
2223 225 jeremybenn
          if (nh)
2224
            dynindx = nh->dynindx;
2225 24 jeremybenn
        }
2226
 
2227
      rel.r_addend = 0;
2228
      rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_EPLT);
2229
 
2230
      loc = sopdrel->contents;
2231
      loc += sopdrel->reloc_count++ * sizeof (Elf64_External_Rela);
2232
      bfd_elf64_swap_reloca_out (sopd->output_section->owner, &rel, loc);
2233
    }
2234
  return TRUE;
2235
}
2236
 
2237
/* The .dlt section contains addresses for items referenced through the
2238
   dlt.  Note that we can have a DLTIND relocation for a local symbol, thus
2239
   we can not depend on finish_dynamic_symbol to initialize the .dlt.  */
2240
 
2241
static bfd_boolean
2242 225 jeremybenn
elf64_hppa_finalize_dlt (struct elf_link_hash_entry *eh, void *data)
2243 24 jeremybenn
{
2244 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
2245 24 jeremybenn
  struct bfd_link_info *info = (struct bfd_link_info *)data;
2246
  struct elf64_hppa_link_hash_table *hppa_info;
2247
  asection *sdlt, *sdltrel;
2248
 
2249 225 jeremybenn
  hppa_info = hppa_link_hash_table (info);
2250 24 jeremybenn
 
2251
  sdlt = hppa_info->dlt_sec;
2252
  sdltrel = hppa_info->dlt_rel_sec;
2253
 
2254
  /* H/DYN_H may refer to a local variable and we know it's
2255
     address, so there is no need to create a relocation.  Just install
2256
     the proper value into the DLT, note this shortcut can not be
2257
     skipped when building a shared library.  */
2258 225 jeremybenn
  if (! info->shared && hh && hh->want_dlt)
2259 24 jeremybenn
    {
2260
      bfd_vma value;
2261
 
2262
      /* If we had an LTOFF_FPTR style relocation we want the DLT entry
2263
         to point to the FPTR entry in the .opd section.
2264
 
2265
         We include the OPD's output offset in this computation as
2266
         we are referring to an absolute address in the resulting
2267
         object file.  */
2268 225 jeremybenn
      if (hh->want_opd)
2269 24 jeremybenn
        {
2270 225 jeremybenn
          value = (hh->opd_offset
2271 24 jeremybenn
                   + hppa_info->opd_sec->output_offset
2272
                   + hppa_info->opd_sec->output_section->vma);
2273
        }
2274 225 jeremybenn
      else if ((eh->root.type == bfd_link_hash_defined
2275
                || eh->root.type == bfd_link_hash_defweak)
2276
               && eh->root.u.def.section)
2277 24 jeremybenn
        {
2278 225 jeremybenn
          value = eh->root.u.def.value + eh->root.u.def.section->output_offset;
2279
          if (eh->root.u.def.section->output_section)
2280
            value += eh->root.u.def.section->output_section->vma;
2281 24 jeremybenn
          else
2282 225 jeremybenn
            value += eh->root.u.def.section->vma;
2283 24 jeremybenn
        }
2284
      else
2285
        /* We have an undefined function reference.  */
2286
        value = 0;
2287
 
2288
      /* We do not need to include the output offset of the DLT section
2289
         here because we are modifying the in-memory contents.  */
2290 225 jeremybenn
      bfd_put_64 (sdlt->owner, value, sdlt->contents + hh->dlt_offset);
2291 24 jeremybenn
    }
2292
 
2293
  /* Create a relocation for the DLT entry associated with this symbol.
2294
     When building a shared library the symbol does not have to be dynamic.  */
2295 225 jeremybenn
  if (hh->want_dlt
2296
      && (elf64_hppa_dynamic_symbol_p (eh, info) || info->shared))
2297 24 jeremybenn
    {
2298
      Elf_Internal_Rela rel;
2299
      bfd_byte *loc;
2300
      int dynindx;
2301
 
2302
      /* We may need to do a relocation against a local symbol, in
2303
         which case we have to look up it's dynamic symbol index off
2304
         the local symbol hash table.  */
2305 225 jeremybenn
      if (eh && eh->dynindx != -1)
2306
        dynindx = eh->dynindx;
2307 24 jeremybenn
      else
2308
        dynindx
2309 225 jeremybenn
          = _bfd_elf_link_lookup_local_dynindx (info, hh->owner,
2310
                                                hh->sym_indx);
2311 24 jeremybenn
 
2312
      /* Create a dynamic relocation for this entry.  Do include the output
2313
         offset of the DLT entry since we need an absolute address in the
2314
         resulting object file.  */
2315 225 jeremybenn
      rel.r_offset = (hh->dlt_offset + sdlt->output_offset
2316 24 jeremybenn
                      + sdlt->output_section->vma);
2317 225 jeremybenn
      if (eh && eh->type == STT_FUNC)
2318 24 jeremybenn
          rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_FPTR64);
2319
      else
2320
          rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_DIR64);
2321
      rel.r_addend = 0;
2322
 
2323
      loc = sdltrel->contents;
2324
      loc += sdltrel->reloc_count++ * sizeof (Elf64_External_Rela);
2325
      bfd_elf64_swap_reloca_out (sdlt->output_section->owner, &rel, loc);
2326
    }
2327
  return TRUE;
2328
}
2329
 
2330
/* Finalize the dynamic relocations.  Specifically the FPTR relocations
2331
   for dynamic functions used to initialize static data.  */
2332
 
2333
static bfd_boolean
2334 225 jeremybenn
elf64_hppa_finalize_dynreloc (struct elf_link_hash_entry *eh,
2335
                              void *data)
2336 24 jeremybenn
{
2337 225 jeremybenn
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
2338 24 jeremybenn
  struct bfd_link_info *info = (struct bfd_link_info *)data;
2339
  struct elf64_hppa_link_hash_table *hppa_info;
2340
  int dynamic_symbol;
2341
 
2342 225 jeremybenn
  dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, info);
2343 24 jeremybenn
 
2344
  if (!dynamic_symbol && !info->shared)
2345
    return TRUE;
2346
 
2347 225 jeremybenn
  if (hh->reloc_entries)
2348 24 jeremybenn
    {
2349
      struct elf64_hppa_dyn_reloc_entry *rent;
2350
      int dynindx;
2351
 
2352 225 jeremybenn
      hppa_info = hppa_link_hash_table (info);
2353 24 jeremybenn
 
2354
      /* We may need to do a relocation against a local symbol, in
2355
         which case we have to look up it's dynamic symbol index off
2356
         the local symbol hash table.  */
2357 225 jeremybenn
      if (eh->dynindx != -1)
2358
        dynindx = eh->dynindx;
2359 24 jeremybenn
      else
2360
        dynindx
2361 225 jeremybenn
          = _bfd_elf_link_lookup_local_dynindx (info, hh->owner,
2362
                                                hh->sym_indx);
2363 24 jeremybenn
 
2364 225 jeremybenn
      for (rent = hh->reloc_entries; rent; rent = rent->next)
2365 24 jeremybenn
        {
2366
          Elf_Internal_Rela rel;
2367
          bfd_byte *loc;
2368
 
2369
          /* Allocate one iff we are building a shared library, the relocation
2370
             isn't a R_PARISC_FPTR64, or we don't want an opd entry.  */
2371 225 jeremybenn
          if (!info->shared && rent->type == R_PARISC_FPTR64 && hh->want_opd)
2372 24 jeremybenn
            continue;
2373
 
2374
          /* Create a dynamic relocation for this entry.
2375
 
2376
             We need the output offset for the reloc's section because
2377
             we are creating an absolute address in the resulting object
2378
             file.  */
2379
          rel.r_offset = (rent->offset + rent->sec->output_offset
2380
                          + rent->sec->output_section->vma);
2381
 
2382
          /* An FPTR64 relocation implies that we took the address of
2383
             a function and that the function has an entry in the .opd
2384
             section.  We want the FPTR64 relocation to reference the
2385
             entry in .opd.
2386
 
2387
             We could munge the symbol value in the dynamic symbol table
2388
             (in fact we already do for functions with global scope) to point
2389
             to the .opd entry.  Then we could use that dynamic symbol in
2390
             this relocation.
2391
 
2392
             Or we could do something sensible, not munge the symbol's
2393
             address and instead just use a different symbol to reference
2394
             the .opd entry.  At least that seems sensible until you
2395
             realize there's no local dynamic symbols we can use for that
2396
             purpose.  Thus the hair in the check_relocs routine.
2397
 
2398
             We use a section symbol recorded by check_relocs as the
2399
             base symbol for the relocation.  The addend is the difference
2400
             between the section symbol and the address of the .opd entry.  */
2401 225 jeremybenn
          if (info->shared && rent->type == R_PARISC_FPTR64 && hh->want_opd)
2402 24 jeremybenn
            {
2403
              bfd_vma value, value2;
2404
 
2405
              /* First compute the address of the opd entry for this symbol.  */
2406 225 jeremybenn
              value = (hh->opd_offset
2407 24 jeremybenn
                       + hppa_info->opd_sec->output_section->vma
2408
                       + hppa_info->opd_sec->output_offset);
2409
 
2410
              /* Compute the value of the start of the section with
2411
                 the relocation.  */
2412
              value2 = (rent->sec->output_section->vma
2413
                        + rent->sec->output_offset);
2414
 
2415
              /* Compute the difference between the start of the section
2416
                 with the relocation and the opd entry.  */
2417
              value -= value2;
2418
 
2419
              /* The result becomes the addend of the relocation.  */
2420
              rel.r_addend = value;
2421
 
2422
              /* The section symbol becomes the symbol for the dynamic
2423
                 relocation.  */
2424
              dynindx
2425
                = _bfd_elf_link_lookup_local_dynindx (info,
2426
                                                      rent->sec->owner,
2427
                                                      rent->sec_symndx);
2428
            }
2429
          else
2430
            rel.r_addend = rent->addend;
2431
 
2432
          rel.r_info = ELF64_R_INFO (dynindx, rent->type);
2433
 
2434
          loc = hppa_info->other_rel_sec->contents;
2435
          loc += (hppa_info->other_rel_sec->reloc_count++
2436
                  * sizeof (Elf64_External_Rela));
2437
          bfd_elf64_swap_reloca_out (hppa_info->other_rel_sec->output_section->owner,
2438
                                     &rel, loc);
2439
        }
2440
    }
2441
 
2442
  return TRUE;
2443
}
2444
 
2445
/* Used to decide how to sort relocs in an optimal manner for the
2446
   dynamic linker, before writing them out.  */
2447
 
2448
static enum elf_reloc_type_class
2449 225 jeremybenn
elf64_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
2450 24 jeremybenn
{
2451
  if (ELF64_R_SYM (rela->r_info) == 0)
2452
    return reloc_class_relative;
2453
 
2454
  switch ((int) ELF64_R_TYPE (rela->r_info))
2455
    {
2456
    case R_PARISC_IPLT:
2457
      return reloc_class_plt;
2458
    case R_PARISC_COPY:
2459
      return reloc_class_copy;
2460
    default:
2461
      return reloc_class_normal;
2462
    }
2463
}
2464
 
2465
/* Finish up the dynamic sections.  */
2466
 
2467
static bfd_boolean
2468 225 jeremybenn
elf64_hppa_finish_dynamic_sections (bfd *output_bfd,
2469
                                    struct bfd_link_info *info)
2470 24 jeremybenn
{
2471
  bfd *dynobj;
2472
  asection *sdyn;
2473
  struct elf64_hppa_link_hash_table *hppa_info;
2474
 
2475 225 jeremybenn
  hppa_info = hppa_link_hash_table (info);
2476 24 jeremybenn
 
2477
  /* Finalize the contents of the .opd section.  */
2478 225 jeremybenn
  elf_link_hash_traverse (elf_hash_table (info),
2479
                          elf64_hppa_finalize_opd,
2480
                          info);
2481 24 jeremybenn
 
2482 225 jeremybenn
  elf_link_hash_traverse (elf_hash_table (info),
2483
                          elf64_hppa_finalize_dynreloc,
2484
                          info);
2485 24 jeremybenn
 
2486
  /* Finalize the contents of the .dlt section.  */
2487
  dynobj = elf_hash_table (info)->dynobj;
2488
  /* Finalize the contents of the .dlt section.  */
2489 225 jeremybenn
  elf_link_hash_traverse (elf_hash_table (info),
2490
                          elf64_hppa_finalize_dlt,
2491
                          info);
2492 24 jeremybenn
 
2493
  sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2494
 
2495
  if (elf_hash_table (info)->dynamic_sections_created)
2496
    {
2497
      Elf64_External_Dyn *dyncon, *dynconend;
2498
 
2499
      BFD_ASSERT (sdyn != NULL);
2500
 
2501
      dyncon = (Elf64_External_Dyn *) sdyn->contents;
2502
      dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
2503
      for (; dyncon < dynconend; dyncon++)
2504
        {
2505
          Elf_Internal_Dyn dyn;
2506
          asection *s;
2507
 
2508
          bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
2509
 
2510
          switch (dyn.d_tag)
2511
            {
2512
            default:
2513
              break;
2514
 
2515
            case DT_HP_LOAD_MAP:
2516
              /* Compute the absolute address of 16byte scratchpad area
2517
                 for the dynamic linker.
2518
 
2519
                 By convention the linker script will allocate the scratchpad
2520
                 area at the start of the .data section.  So all we have to
2521
                 to is find the start of the .data section.  */
2522
              s = bfd_get_section_by_name (output_bfd, ".data");
2523
              dyn.d_un.d_ptr = s->vma;
2524
              bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2525
              break;
2526
 
2527
            case DT_PLTGOT:
2528
              /* HP's use PLTGOT to set the GOT register.  */
2529
              dyn.d_un.d_ptr = _bfd_get_gp_value (output_bfd);
2530
              bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2531
              break;
2532
 
2533
            case DT_JMPREL:
2534
              s = hppa_info->plt_rel_sec;
2535
              dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
2536
              bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2537
              break;
2538
 
2539
            case DT_PLTRELSZ:
2540
              s = hppa_info->plt_rel_sec;
2541
              dyn.d_un.d_val = s->size;
2542
              bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2543
              break;
2544
 
2545
            case DT_RELA:
2546
              s = hppa_info->other_rel_sec;
2547
              if (! s || ! s->size)
2548
                s = hppa_info->dlt_rel_sec;
2549
              if (! s || ! s->size)
2550
                s = hppa_info->opd_rel_sec;
2551
              dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
2552
              bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2553
              break;
2554
 
2555
            case DT_RELASZ:
2556
              s = hppa_info->other_rel_sec;
2557
              dyn.d_un.d_val = s->size;
2558
              s = hppa_info->dlt_rel_sec;
2559
              dyn.d_un.d_val += s->size;
2560
              s = hppa_info->opd_rel_sec;
2561
              dyn.d_un.d_val += s->size;
2562
              /* There is some question about whether or not the size of
2563
                 the PLT relocs should be included here.  HP's tools do
2564
                 it, so we'll emulate them.  */
2565
              s = hppa_info->plt_rel_sec;
2566
              dyn.d_un.d_val += s->size;
2567
              bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2568
              break;
2569
 
2570
            }
2571
        }
2572
    }
2573
 
2574
  return TRUE;
2575
}
2576
 
2577
/* Support for core dump NOTE sections.  */
2578
 
2579
static bfd_boolean
2580
elf64_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2581
{
2582
  int offset;
2583
  size_t size;
2584
 
2585
  switch (note->descsz)
2586
    {
2587
      default:
2588
        return FALSE;
2589
 
2590
      case 760:         /* Linux/hppa */
2591
        /* pr_cursig */
2592
        elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2593
 
2594
        /* pr_pid */
2595
        elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2596
 
2597
        /* pr_reg */
2598
        offset = 112;
2599
        size = 640;
2600
 
2601
        break;
2602
    }
2603
 
2604
  /* Make a ".reg/999" section.  */
2605
  return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2606
                                          size, note->descpos + offset);
2607
}
2608
 
2609
static bfd_boolean
2610
elf64_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2611
{
2612
  char * command;
2613
  int n;
2614
 
2615
  switch (note->descsz)
2616
    {
2617
    default:
2618
      return FALSE;
2619
 
2620
    case 136:           /* Linux/hppa elf_prpsinfo.  */
2621
      elf_tdata (abfd)->core_program
2622
        = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2623
      elf_tdata (abfd)->core_command
2624
        = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2625
    }
2626
 
2627
  /* Note that for some reason, a spurious space is tacked
2628
     onto the end of the args in some (at least one anyway)
2629
     implementations, so strip it off if it exists.  */
2630
  command = elf_tdata (abfd)->core_command;
2631
  n = strlen (command);
2632
 
2633
  if (0 < n && command[n - 1] == ' ')
2634
    command[n - 1] = '\0';
2635
 
2636
  return TRUE;
2637
}
2638
 
2639
/* Return the number of additional phdrs we will need.
2640
 
2641
   The generic ELF code only creates PT_PHDRs for executables.  The HP
2642
   dynamic linker requires PT_PHDRs for dynamic libraries too.
2643
 
2644
   This routine indicates that the backend needs one additional program
2645
   header for that case.
2646
 
2647
   Note we do not have access to the link info structure here, so we have
2648
   to guess whether or not we are building a shared library based on the
2649
   existence of a .interp section.  */
2650
 
2651
static int
2652
elf64_hppa_additional_program_headers (bfd *abfd,
2653 225 jeremybenn
                                struct bfd_link_info *info ATTRIBUTE_UNUSED)
2654 24 jeremybenn
{
2655
  asection *s;
2656
 
2657
  /* If we are creating a shared library, then we have to create a
2658
     PT_PHDR segment.  HP's dynamic linker chokes without it.  */
2659
  s = bfd_get_section_by_name (abfd, ".interp");
2660
  if (! s)
2661
    return 1;
2662
  return 0;
2663
}
2664
 
2665
/* Allocate and initialize any program headers required by this
2666
   specific backend.
2667
 
2668
   The generic ELF code only creates PT_PHDRs for executables.  The HP
2669
   dynamic linker requires PT_PHDRs for dynamic libraries too.
2670
 
2671
   This allocates the PT_PHDR and initializes it in a manner suitable
2672
   for the HP linker.
2673
 
2674
   Note we do not have access to the link info structure here, so we have
2675
   to guess whether or not we are building a shared library based on the
2676
   existence of a .interp section.  */
2677
 
2678
static bfd_boolean
2679
elf64_hppa_modify_segment_map (bfd *abfd,
2680
                               struct bfd_link_info *info ATTRIBUTE_UNUSED)
2681
{
2682
  struct elf_segment_map *m;
2683
  asection *s;
2684
 
2685
  s = bfd_get_section_by_name (abfd, ".interp");
2686
  if (! s)
2687
    {
2688
      for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
2689
        if (m->p_type == PT_PHDR)
2690
          break;
2691
      if (m == NULL)
2692
        {
2693
          m = ((struct elf_segment_map *)
2694
               bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
2695
          if (m == NULL)
2696
            return FALSE;
2697
 
2698
          m->p_type = PT_PHDR;
2699
          m->p_flags = PF_R | PF_X;
2700
          m->p_flags_valid = 1;
2701
          m->p_paddr_valid = 1;
2702
          m->includes_phdrs = 1;
2703
 
2704
          m->next = elf_tdata (abfd)->segment_map;
2705
          elf_tdata (abfd)->segment_map = m;
2706
        }
2707
    }
2708
 
2709
  for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
2710
    if (m->p_type == PT_LOAD)
2711
      {
2712
        unsigned int i;
2713
 
2714
        for (i = 0; i < m->count; i++)
2715
          {
2716
            /* The code "hint" is not really a hint.  It is a requirement
2717
               for certain versions of the HP dynamic linker.  Worse yet,
2718
               it must be set even if the shared library does not have
2719
               any code in its "text" segment (thus the check for .hash
2720
               to catch this situation).  */
2721
            if (m->sections[i]->flags & SEC_CODE
2722
                || (strcmp (m->sections[i]->name, ".hash") == 0))
2723
              m->p_flags |= (PF_X | PF_HP_CODE);
2724
          }
2725
      }
2726
 
2727
  return TRUE;
2728
}
2729
 
2730
/* Called when writing out an object file to decide the type of a
2731
   symbol.  */
2732
static int
2733 225 jeremybenn
elf64_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym,
2734
                                int type)
2735 24 jeremybenn
{
2736
  if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
2737
    return STT_PARISC_MILLI;
2738
  else
2739
    return type;
2740
}
2741
 
2742
/* Support HP specific sections for core files.  */
2743
static bfd_boolean
2744
elf64_hppa_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int index,
2745
                              const char *typename)
2746
{
2747
  if (hdr->p_type == PT_HP_CORE_KERNEL)
2748
    {
2749
      asection *sect;
2750
 
2751
      if (!_bfd_elf_make_section_from_phdr (abfd, hdr, index, typename))
2752
        return FALSE;
2753
 
2754
      sect = bfd_make_section_anyway (abfd, ".kernel");
2755
      if (sect == NULL)
2756
        return FALSE;
2757
      sect->size = hdr->p_filesz;
2758
      sect->filepos = hdr->p_offset;
2759
      sect->flags = SEC_HAS_CONTENTS | SEC_READONLY;
2760
      return TRUE;
2761
    }
2762
 
2763
  if (hdr->p_type == PT_HP_CORE_PROC)
2764
    {
2765
      int sig;
2766
 
2767
      if (bfd_seek (abfd, hdr->p_offset, SEEK_SET) != 0)
2768
        return FALSE;
2769
      if (bfd_bread (&sig, 4, abfd) != 4)
2770
        return FALSE;
2771
 
2772
      elf_tdata (abfd)->core_signal = sig;
2773
 
2774
      if (!_bfd_elf_make_section_from_phdr (abfd, hdr, index, typename))
2775
        return FALSE;
2776
 
2777
      /* GDB uses the ".reg" section to read register contents.  */
2778
      return _bfd_elfcore_make_pseudosection (abfd, ".reg", hdr->p_filesz,
2779
                                              hdr->p_offset);
2780
    }
2781
 
2782
  if (hdr->p_type == PT_HP_CORE_LOADABLE
2783
      || hdr->p_type == PT_HP_CORE_STACK
2784
      || hdr->p_type == PT_HP_CORE_MMF)
2785
    hdr->p_type = PT_LOAD;
2786
 
2787
  return _bfd_elf_make_section_from_phdr (abfd, hdr, index, typename);
2788
}
2789
 
2790 225 jeremybenn
/* Hook called by the linker routine which adds symbols from an object
2791
   file.  HP's libraries define symbols with HP specific section
2792
   indices, which we have to handle.  */
2793
 
2794
static bfd_boolean
2795
elf_hppa_add_symbol_hook (bfd *abfd,
2796
                          struct bfd_link_info *info ATTRIBUTE_UNUSED,
2797
                          Elf_Internal_Sym *sym,
2798
                          const char **namep ATTRIBUTE_UNUSED,
2799
                          flagword *flagsp ATTRIBUTE_UNUSED,
2800
                          asection **secp,
2801
                          bfd_vma *valp)
2802
{
2803
  unsigned int index = sym->st_shndx;
2804
 
2805
  switch (index)
2806
    {
2807
    case SHN_PARISC_ANSI_COMMON:
2808
      *secp = bfd_make_section_old_way (abfd, ".PARISC.ansi.common");
2809
      (*secp)->flags |= SEC_IS_COMMON;
2810
      *valp = sym->st_size;
2811
      break;
2812
 
2813
    case SHN_PARISC_HUGE_COMMON:
2814
      *secp = bfd_make_section_old_way (abfd, ".PARISC.huge.common");
2815
      (*secp)->flags |= SEC_IS_COMMON;
2816
      *valp = sym->st_size;
2817
      break;
2818
    }
2819
 
2820
  return TRUE;
2821
}
2822
 
2823
static bfd_boolean
2824
elf_hppa_unmark_useless_dynamic_symbols (struct elf_link_hash_entry *h,
2825
                                         void *data)
2826
{
2827
  struct bfd_link_info *info = data;
2828
 
2829
  if (h->root.type == bfd_link_hash_warning)
2830
    h = (struct elf_link_hash_entry *) h->root.u.i.link;
2831
 
2832
  /* If we are not creating a shared library, and this symbol is
2833
     referenced by a shared library but is not defined anywhere, then
2834
     the generic code will warn that it is undefined.
2835
 
2836
     This behavior is undesirable on HPs since the standard shared
2837
     libraries contain references to undefined symbols.
2838
 
2839
     So we twiddle the flags associated with such symbols so that they
2840
     will not trigger the warning.  ?!? FIXME.  This is horribly fragile.
2841
 
2842
     Ultimately we should have better controls over the generic ELF BFD
2843
     linker code.  */
2844
  if (! info->relocatable
2845
      && info->unresolved_syms_in_shared_libs != RM_IGNORE
2846
      && h->root.type == bfd_link_hash_undefined
2847
      && h->ref_dynamic
2848
      && !h->ref_regular)
2849
    {
2850
      h->ref_dynamic = 0;
2851
      h->pointer_equality_needed = 1;
2852
    }
2853
 
2854
  return TRUE;
2855
}
2856
 
2857
static bfd_boolean
2858
elf_hppa_remark_useless_dynamic_symbols (struct elf_link_hash_entry *h,
2859
                                         void *data)
2860
{
2861
  struct bfd_link_info *info = data;
2862
 
2863
  if (h->root.type == bfd_link_hash_warning)
2864
    h = (struct elf_link_hash_entry *) h->root.u.i.link;
2865
 
2866
  /* If we are not creating a shared library, and this symbol is
2867
     referenced by a shared library but is not defined anywhere, then
2868
     the generic code will warn that it is undefined.
2869
 
2870
     This behavior is undesirable on HPs since the standard shared
2871
     libraries contain references to undefined symbols.
2872
 
2873
     So we twiddle the flags associated with such symbols so that they
2874
     will not trigger the warning.  ?!? FIXME.  This is horribly fragile.
2875
 
2876
     Ultimately we should have better controls over the generic ELF BFD
2877
     linker code.  */
2878
  if (! info->relocatable
2879
      && info->unresolved_syms_in_shared_libs != RM_IGNORE
2880
      && h->root.type == bfd_link_hash_undefined
2881
      && !h->ref_dynamic
2882
      && !h->ref_regular
2883
      && h->pointer_equality_needed)
2884
    {
2885
      h->ref_dynamic = 1;
2886
      h->pointer_equality_needed = 0;
2887
    }
2888
 
2889
  return TRUE;
2890
}
2891
 
2892
static bfd_boolean
2893
elf_hppa_is_dynamic_loader_symbol (const char *name)
2894
{
2895
  return (! strcmp (name, "__CPU_REVISION")
2896
          || ! strcmp (name, "__CPU_KEYBITS_1")
2897
          || ! strcmp (name, "__SYSTEM_ID_D")
2898
          || ! strcmp (name, "__FPU_MODEL")
2899
          || ! strcmp (name, "__FPU_REVISION")
2900
          || ! strcmp (name, "__ARGC")
2901
          || ! strcmp (name, "__ARGV")
2902
          || ! strcmp (name, "__ENVP")
2903
          || ! strcmp (name, "__TLS_SIZE_D")
2904
          || ! strcmp (name, "__LOAD_INFO")
2905
          || ! strcmp (name, "__systab"));
2906
}
2907
 
2908
/* Record the lowest address for the data and text segments.  */
2909
static void
2910
elf_hppa_record_segment_addrs (bfd *abfd,
2911
                               asection *section,
2912
                               void *data)
2913
{
2914
  struct elf64_hppa_link_hash_table *hppa_info = data;
2915
 
2916
  if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2917
    {
2918
      bfd_vma value;
2919
      Elf_Internal_Phdr *p;
2920
 
2921
      p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
2922
      BFD_ASSERT (p != NULL);
2923
      value = p->p_vaddr;
2924
 
2925
      if (section->flags & SEC_READONLY)
2926
        {
2927
          if (value < hppa_info->text_segment_base)
2928
            hppa_info->text_segment_base = value;
2929
        }
2930
      else
2931
        {
2932
          if (value < hppa_info->data_segment_base)
2933
            hppa_info->data_segment_base = value;
2934
        }
2935
    }
2936
}
2937
 
2938
/* Called after we have seen all the input files/sections, but before
2939
   final symbol resolution and section placement has been determined.
2940
 
2941
   We use this hook to (possibly) provide a value for __gp, then we
2942
   fall back to the generic ELF final link routine.  */
2943
 
2944
static bfd_boolean
2945
elf_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
2946
{
2947
  bfd_boolean retval;
2948
  struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info);
2949
 
2950
  if (! info->relocatable)
2951
    {
2952
      struct elf_link_hash_entry *gp;
2953
      bfd_vma gp_val;
2954
 
2955
      /* The linker script defines a value for __gp iff it was referenced
2956
         by one of the objects being linked.  First try to find the symbol
2957
         in the hash table.  If that fails, just compute the value __gp
2958
         should have had.  */
2959
      gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
2960
                                 FALSE, FALSE);
2961
 
2962
      if (gp)
2963
        {
2964
 
2965
          /* Adjust the value of __gp as we may want to slide it into the
2966
             .plt section so that the stubs can access PLT entries without
2967
             using an addil sequence.  */
2968
          gp->root.u.def.value += hppa_info->gp_offset;
2969
 
2970
          gp_val = (gp->root.u.def.section->output_section->vma
2971
                    + gp->root.u.def.section->output_offset
2972
                    + gp->root.u.def.value);
2973
        }
2974
      else
2975
        {
2976
          asection *sec;
2977
 
2978
          /* First look for a .plt section.  If found, then __gp is the
2979
             address of the .plt + gp_offset.
2980
 
2981
             If no .plt is found, then look for .dlt, .opd and .data (in
2982
             that order) and set __gp to the base address of whichever
2983
             section is found first.  */
2984
 
2985
          sec = hppa_info->plt_sec;
2986
          if (sec && ! (sec->flags & SEC_EXCLUDE))
2987
            gp_val = (sec->output_offset
2988
                      + sec->output_section->vma
2989
                      + hppa_info->gp_offset);
2990
          else
2991
            {
2992
              sec = hppa_info->dlt_sec;
2993
              if (!sec || (sec->flags & SEC_EXCLUDE))
2994
                sec = hppa_info->opd_sec;
2995
              if (!sec || (sec->flags & SEC_EXCLUDE))
2996
                sec = bfd_get_section_by_name (abfd, ".data");
2997
              if (!sec || (sec->flags & SEC_EXCLUDE))
2998
                gp_val = 0;
2999
              else
3000
                gp_val = sec->output_offset + sec->output_section->vma;
3001
            }
3002
        }
3003
 
3004
      /* Install whatever value we found/computed for __gp.  */
3005
      _bfd_set_gp_value (abfd, gp_val);
3006
    }
3007
 
3008
  /* We need to know the base of the text and data segments so that we
3009
     can perform SEGREL relocations.  We will record the base addresses
3010
     when we encounter the first SEGREL relocation.  */
3011
  hppa_info->text_segment_base = (bfd_vma)-1;
3012
  hppa_info->data_segment_base = (bfd_vma)-1;
3013
 
3014
  /* HP's shared libraries have references to symbols that are not
3015
     defined anywhere.  The generic ELF BFD linker code will complain
3016
     about such symbols.
3017
 
3018
     So we detect the losing case and arrange for the flags on the symbol
3019
     to indicate that it was never referenced.  This keeps the generic
3020
     ELF BFD link code happy and appears to not create any secondary
3021
     problems.  Ultimately we need a way to control the behavior of the
3022
     generic ELF BFD link code better.  */
3023
  elf_link_hash_traverse (elf_hash_table (info),
3024
                          elf_hppa_unmark_useless_dynamic_symbols,
3025
                          info);
3026
 
3027
  /* Invoke the regular ELF backend linker to do all the work.  */
3028
  retval = bfd_elf_final_link (abfd, info);
3029
 
3030
  elf_link_hash_traverse (elf_hash_table (info),
3031
                          elf_hppa_remark_useless_dynamic_symbols,
3032
                          info);
3033
 
3034
  /* If we're producing a final executable, sort the contents of the
3035
     unwind section. */
3036
  if (retval)
3037
    retval = elf_hppa_sort_unwind (abfd);
3038
 
3039
  return retval;
3040
}
3041
 
3042
/* Relocate the given INSN.  VALUE should be the actual value we want
3043
   to insert into the instruction, ie by this point we should not be
3044
   concerned with computing an offset relative to the DLT, PC, etc.
3045
   Instead this routine is meant to handle the bit manipulations needed
3046
   to insert the relocation into the given instruction.  */
3047
 
3048
static int
3049
elf_hppa_relocate_insn (int insn, int sym_value, unsigned int r_type)
3050
{
3051
  switch (r_type)
3052
    {
3053
    /* This is any 22 bit branch.  In PA2.0 syntax it corresponds to
3054
       the "B" instruction.  */
3055
    case R_PARISC_PCREL22F:
3056
    case R_PARISC_PCREL22C:
3057
      return (insn & ~0x3ff1ffd) | re_assemble_22 (sym_value);
3058
 
3059
      /* This is any 12 bit branch.  */
3060
    case R_PARISC_PCREL12F:
3061
      return (insn & ~0x1ffd) | re_assemble_12 (sym_value);
3062
 
3063
    /* This is any 17 bit branch.  In PA2.0 syntax it also corresponds
3064
       to the "B" instruction as well as BE.  */
3065
    case R_PARISC_PCREL17F:
3066
    case R_PARISC_DIR17F:
3067
    case R_PARISC_DIR17R:
3068
    case R_PARISC_PCREL17C:
3069
    case R_PARISC_PCREL17R:
3070
      return (insn & ~0x1f1ffd) | re_assemble_17 (sym_value);
3071
 
3072
    /* ADDIL or LDIL instructions.  */
3073
    case R_PARISC_DLTREL21L:
3074
    case R_PARISC_DLTIND21L:
3075
    case R_PARISC_LTOFF_FPTR21L:
3076
    case R_PARISC_PCREL21L:
3077
    case R_PARISC_LTOFF_TP21L:
3078
    case R_PARISC_DPREL21L:
3079
    case R_PARISC_PLTOFF21L:
3080
    case R_PARISC_DIR21L:
3081
      return (insn & ~0x1fffff) | re_assemble_21 (sym_value);
3082
 
3083
    /* LDO and integer loads/stores with 14 bit displacements.  */
3084
    case R_PARISC_DLTREL14R:
3085
    case R_PARISC_DLTREL14F:
3086
    case R_PARISC_DLTIND14R:
3087
    case R_PARISC_DLTIND14F:
3088
    case R_PARISC_LTOFF_FPTR14R:
3089
    case R_PARISC_PCREL14R:
3090
    case R_PARISC_PCREL14F:
3091
    case R_PARISC_LTOFF_TP14R:
3092
    case R_PARISC_LTOFF_TP14F:
3093
    case R_PARISC_DPREL14R:
3094
    case R_PARISC_DPREL14F:
3095
    case R_PARISC_PLTOFF14R:
3096
    case R_PARISC_PLTOFF14F:
3097
    case R_PARISC_DIR14R:
3098
    case R_PARISC_DIR14F:
3099
      return (insn & ~0x3fff) | low_sign_unext (sym_value, 14);
3100
 
3101
    /* PA2.0W LDO and integer loads/stores with 16 bit displacements.  */
3102
    case R_PARISC_LTOFF_FPTR16F:
3103
    case R_PARISC_PCREL16F:
3104
    case R_PARISC_LTOFF_TP16F:
3105
    case R_PARISC_GPREL16F:
3106
    case R_PARISC_PLTOFF16F:
3107
    case R_PARISC_DIR16F:
3108
    case R_PARISC_LTOFF16F:
3109
      return (insn & ~0xffff) | re_assemble_16 (sym_value);
3110
 
3111
    /* Doubleword loads and stores with a 14 bit displacement.  */
3112
    case R_PARISC_DLTREL14DR:
3113
    case R_PARISC_DLTIND14DR:
3114
    case R_PARISC_LTOFF_FPTR14DR:
3115
    case R_PARISC_LTOFF_FPTR16DF:
3116
    case R_PARISC_PCREL14DR:
3117
    case R_PARISC_PCREL16DF:
3118
    case R_PARISC_LTOFF_TP14DR:
3119
    case R_PARISC_LTOFF_TP16DF:
3120
    case R_PARISC_DPREL14DR:
3121
    case R_PARISC_GPREL16DF:
3122
    case R_PARISC_PLTOFF14DR:
3123
    case R_PARISC_PLTOFF16DF:
3124
    case R_PARISC_DIR14DR:
3125
    case R_PARISC_DIR16DF:
3126
    case R_PARISC_LTOFF16DF:
3127
      return (insn & ~0x3ff1) | (((sym_value & 0x2000) >> 13)
3128
                                 | ((sym_value & 0x1ff8) << 1));
3129
 
3130
    /* Floating point single word load/store instructions.  */
3131
    case R_PARISC_DLTREL14WR:
3132
    case R_PARISC_DLTIND14WR:
3133
    case R_PARISC_LTOFF_FPTR14WR:
3134
    case R_PARISC_LTOFF_FPTR16WF:
3135
    case R_PARISC_PCREL14WR:
3136
    case R_PARISC_PCREL16WF:
3137
    case R_PARISC_LTOFF_TP14WR:
3138
    case R_PARISC_LTOFF_TP16WF:
3139
    case R_PARISC_DPREL14WR:
3140
    case R_PARISC_GPREL16WF:
3141
    case R_PARISC_PLTOFF14WR:
3142
    case R_PARISC_PLTOFF16WF:
3143
    case R_PARISC_DIR16WF:
3144
    case R_PARISC_DIR14WR:
3145
    case R_PARISC_LTOFF16WF:
3146
      return (insn & ~0x3ff9) | (((sym_value & 0x2000) >> 13)
3147
                                 | ((sym_value & 0x1ffc) << 1));
3148
 
3149
    default:
3150
      return insn;
3151
    }
3152
}
3153
 
3154
/* Compute the value for a relocation (REL) during a final link stage,
3155
   then insert the value into the proper location in CONTENTS.
3156
 
3157
   VALUE is a tentative value for the relocation and may be overridden
3158
   and modified here based on the specific relocation to be performed.
3159
 
3160
   For example we do conversions for PC-relative branches in this routine
3161
   or redirection of calls to external routines to stubs.
3162
 
3163
   The work of actually applying the relocation is left to a helper
3164
   routine in an attempt to reduce the complexity and size of this
3165
   function.  */
3166
 
3167
static bfd_reloc_status_type
3168
elf_hppa_final_link_relocate (Elf_Internal_Rela *rel,
3169
                              bfd *input_bfd,
3170
                              bfd *output_bfd,
3171
                              asection *input_section,
3172
                              bfd_byte *contents,
3173
                              bfd_vma value,
3174
                              struct bfd_link_info *info,
3175
                              asection *sym_sec,
3176
                              struct elf_link_hash_entry *eh)
3177
{
3178
  struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info);
3179
  struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
3180
  bfd_vma *local_offsets;
3181
  Elf_Internal_Shdr *symtab_hdr;
3182
  int insn;
3183
  bfd_vma max_branch_offset = 0;
3184
  bfd_vma offset = rel->r_offset;
3185
  bfd_signed_vma addend = rel->r_addend;
3186
  reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info);
3187
  unsigned int r_symndx = ELF_R_SYM (rel->r_info);
3188
  unsigned int r_type = howto->type;
3189
  bfd_byte *hit_data = contents + offset;
3190
 
3191
  symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3192
  local_offsets = elf_local_got_offsets (input_bfd);
3193
  insn = bfd_get_32 (input_bfd, hit_data);
3194
 
3195
  switch (r_type)
3196
    {
3197
    case R_PARISC_NONE:
3198
      break;
3199
 
3200
    /* Basic function call support.
3201
 
3202
       Note for a call to a function defined in another dynamic library
3203
       we want to redirect the call to a stub.  */
3204
 
3205
    /* PC relative relocs without an implicit offset.  */
3206
    case R_PARISC_PCREL21L:
3207
    case R_PARISC_PCREL14R:
3208
    case R_PARISC_PCREL14F:
3209
    case R_PARISC_PCREL14WR:
3210
    case R_PARISC_PCREL14DR:
3211
    case R_PARISC_PCREL16F:
3212
    case R_PARISC_PCREL16WF:
3213
    case R_PARISC_PCREL16DF:
3214
      {
3215
        /* If this is a call to a function defined in another dynamic
3216
           library, then redirect the call to the local stub for this
3217
           function.  */
3218
        if (sym_sec == NULL || sym_sec->output_section == NULL)
3219
          value = (hh->stub_offset + hppa_info->stub_sec->output_offset
3220
                   + hppa_info->stub_sec->output_section->vma);
3221
 
3222
        /* Turn VALUE into a proper PC relative address.  */
3223
        value -= (offset + input_section->output_offset
3224
                  + input_section->output_section->vma);
3225
 
3226
        /* Adjust for any field selectors.  */
3227
        if (r_type == R_PARISC_PCREL21L)
3228
          value = hppa_field_adjust (value, -8 + addend, e_lsel);
3229
        else if (r_type == R_PARISC_PCREL14F
3230
                 || r_type == R_PARISC_PCREL16F
3231
                 || r_type == R_PARISC_PCREL16WF
3232
                 || r_type == R_PARISC_PCREL16DF)
3233
          value = hppa_field_adjust (value, -8 + addend, e_fsel);
3234
        else
3235
          value = hppa_field_adjust (value, -8 + addend, e_rsel);
3236
 
3237
        /* Apply the relocation to the given instruction.  */
3238
        insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
3239
        break;
3240
      }
3241
 
3242
    case R_PARISC_PCREL12F:
3243
    case R_PARISC_PCREL22F:
3244
    case R_PARISC_PCREL17F:
3245
    case R_PARISC_PCREL22C:
3246
    case R_PARISC_PCREL17C:
3247
    case R_PARISC_PCREL17R:
3248
      {
3249
        /* If this is a call to a function defined in another dynamic
3250
           library, then redirect the call to the local stub for this
3251
           function.  */
3252
        if (sym_sec == NULL || sym_sec->output_section == NULL)
3253
          value = (hh->stub_offset + hppa_info->stub_sec->output_offset
3254
                   + hppa_info->stub_sec->output_section->vma);
3255
 
3256
        /* Turn VALUE into a proper PC relative address.  */
3257
        value -= (offset + input_section->output_offset
3258
                  + input_section->output_section->vma);
3259
        addend -= 8;
3260
 
3261
        if (r_type == (unsigned int) R_PARISC_PCREL22F)
3262
          max_branch_offset = (1 << (22-1)) << 2;
3263
        else if (r_type == (unsigned int) R_PARISC_PCREL17F)
3264
          max_branch_offset = (1 << (17-1)) << 2;
3265
        else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3266
          max_branch_offset = (1 << (12-1)) << 2;
3267
 
3268
        /* Make sure we can reach the branch target.  */
3269
        if (max_branch_offset != 0
3270
            && value + addend + max_branch_offset >= 2*max_branch_offset)
3271
          {
3272
            (*_bfd_error_handler)
3273
              (_("%B(%A+0x%lx): cannot reach %s"),
3274
              input_bfd,
3275
              input_section,
3276
              offset,
3277
              eh->root.root.string);
3278
            bfd_set_error (bfd_error_bad_value);
3279
            return bfd_reloc_notsupported;
3280
          }
3281
 
3282
        /* Adjust for any field selectors.  */
3283
        if (r_type == R_PARISC_PCREL17R)
3284
          value = hppa_field_adjust (value, addend, e_rsel);
3285
        else
3286
          value = hppa_field_adjust (value, addend, e_fsel);
3287
 
3288
        /* All branches are implicitly shifted by 2 places.  */
3289
        value >>= 2;
3290
 
3291
        /* Apply the relocation to the given instruction.  */
3292
        insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
3293
        break;
3294
      }
3295
 
3296
    /* Indirect references to data through the DLT.  */
3297
    case R_PARISC_DLTIND14R:
3298
    case R_PARISC_DLTIND14F:
3299
    case R_PARISC_DLTIND14DR:
3300
    case R_PARISC_DLTIND14WR:
3301
    case R_PARISC_DLTIND21L:
3302
    case R_PARISC_LTOFF_FPTR14R:
3303
    case R_PARISC_LTOFF_FPTR14DR:
3304
    case R_PARISC_LTOFF_FPTR14WR:
3305
    case R_PARISC_LTOFF_FPTR21L:
3306
    case R_PARISC_LTOFF_FPTR16F:
3307
    case R_PARISC_LTOFF_FPTR16WF:
3308
    case R_PARISC_LTOFF_FPTR16DF:
3309
    case R_PARISC_LTOFF_TP21L:
3310
    case R_PARISC_LTOFF_TP14R:
3311
    case R_PARISC_LTOFF_TP14F:
3312
    case R_PARISC_LTOFF_TP14WR:
3313
    case R_PARISC_LTOFF_TP14DR:
3314
    case R_PARISC_LTOFF_TP16F:
3315
    case R_PARISC_LTOFF_TP16WF:
3316
    case R_PARISC_LTOFF_TP16DF:
3317
    case R_PARISC_LTOFF16F:
3318
    case R_PARISC_LTOFF16WF:
3319
    case R_PARISC_LTOFF16DF:
3320
      {
3321
        bfd_vma off;
3322
 
3323
        /* If this relocation was against a local symbol, then we still
3324
           have not set up the DLT entry (it's not convenient to do so
3325
           in the "finalize_dlt" routine because it is difficult to get
3326
           to the local symbol's value).
3327
 
3328
           So, if this is a local symbol (h == NULL), then we need to
3329
           fill in its DLT entry.
3330
 
3331
           Similarly we may still need to set up an entry in .opd for
3332
           a local function which had its address taken.  */
3333
        if (hh == NULL)
3334
          {
3335
            bfd_vma *local_opd_offsets, *local_dlt_offsets;
3336
 
3337
            if (local_offsets == NULL)
3338
              abort ();
3339
 
3340
            /* Now do .opd creation if needed.  */
3341
            if (r_type == R_PARISC_LTOFF_FPTR14R
3342
                || r_type == R_PARISC_LTOFF_FPTR14DR
3343
                || r_type == R_PARISC_LTOFF_FPTR14WR
3344
                || r_type == R_PARISC_LTOFF_FPTR21L
3345
                || r_type == R_PARISC_LTOFF_FPTR16F
3346
                || r_type == R_PARISC_LTOFF_FPTR16WF
3347
                || r_type == R_PARISC_LTOFF_FPTR16DF)
3348
              {
3349
                local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info;
3350
                off = local_opd_offsets[r_symndx];
3351
 
3352
                /* The last bit records whether we've already initialised
3353
                   this local .opd entry.  */
3354
                if ((off & 1) != 0)
3355
                  {
3356
                    BFD_ASSERT (off != (bfd_vma) -1);
3357
                    off &= ~1;
3358
                  }
3359
                else
3360
                  {
3361
                    local_opd_offsets[r_symndx] |= 1;
3362
 
3363
                    /* The first two words of an .opd entry are zero.  */
3364
                    memset (hppa_info->opd_sec->contents + off, 0, 16);
3365
 
3366
                    /* The next word is the address of the function.  */
3367
                    bfd_put_64 (hppa_info->opd_sec->owner, value + addend,
3368
                                (hppa_info->opd_sec->contents + off + 16));
3369
 
3370
                    /* The last word is our local __gp value.  */
3371
                    value = _bfd_get_gp_value
3372
                              (hppa_info->opd_sec->output_section->owner);
3373
                    bfd_put_64 (hppa_info->opd_sec->owner, value,
3374
                                (hppa_info->opd_sec->contents + off + 24));
3375
                  }
3376
 
3377
                /* The DLT value is the address of the .opd entry.  */
3378
                value = (off
3379
                         + hppa_info->opd_sec->output_offset
3380
                         + hppa_info->opd_sec->output_section->vma);
3381
                addend = 0;
3382
              }
3383
 
3384
            local_dlt_offsets = local_offsets;
3385
            off = local_dlt_offsets[r_symndx];
3386
 
3387
            if ((off & 1) != 0)
3388
              {
3389
                BFD_ASSERT (off != (bfd_vma) -1);
3390
                off &= ~1;
3391
              }
3392
            else
3393
              {
3394
                local_dlt_offsets[r_symndx] |= 1;
3395
                bfd_put_64 (hppa_info->dlt_sec->owner,
3396
                            value + addend,
3397
                            hppa_info->dlt_sec->contents + off);
3398
              }
3399
          }
3400
        else
3401
          off = hh->dlt_offset;
3402
 
3403
        /* We want the value of the DLT offset for this symbol, not
3404
           the symbol's actual address.  Note that __gp may not point
3405
           to the start of the DLT, so we have to compute the absolute
3406
           address, then subtract out the value of __gp.  */
3407
        value = (off
3408
                 + hppa_info->dlt_sec->output_offset
3409
                 + hppa_info->dlt_sec->output_section->vma);
3410
        value -= _bfd_get_gp_value (output_bfd);
3411
 
3412
        /* All DLTIND relocations are basically the same at this point,
3413
           except that we need different field selectors for the 21bit
3414
           version vs the 14bit versions.  */
3415
        if (r_type == R_PARISC_DLTIND21L
3416
            || r_type == R_PARISC_LTOFF_FPTR21L
3417
            || r_type == R_PARISC_LTOFF_TP21L)
3418
          value = hppa_field_adjust (value, 0, e_lsel);
3419
        else if (r_type == R_PARISC_DLTIND14F
3420
                 || r_type == R_PARISC_LTOFF_FPTR16F
3421
                 || r_type == R_PARISC_LTOFF_FPTR16WF
3422
                 || r_type == R_PARISC_LTOFF_FPTR16DF
3423
                 || r_type == R_PARISC_LTOFF16F
3424
                 || r_type == R_PARISC_LTOFF16DF
3425
                 || r_type == R_PARISC_LTOFF16WF
3426
                 || r_type == R_PARISC_LTOFF_TP16F
3427
                 || r_type == R_PARISC_LTOFF_TP16WF
3428
                 || r_type == R_PARISC_LTOFF_TP16DF)
3429
          value = hppa_field_adjust (value, 0, e_fsel);
3430
        else
3431
          value = hppa_field_adjust (value, 0, e_rsel);
3432
 
3433
        insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
3434
        break;
3435
      }
3436
 
3437
    case R_PARISC_DLTREL14R:
3438
    case R_PARISC_DLTREL14F:
3439
    case R_PARISC_DLTREL14DR:
3440
    case R_PARISC_DLTREL14WR:
3441
    case R_PARISC_DLTREL21L:
3442
    case R_PARISC_DPREL21L:
3443
    case R_PARISC_DPREL14WR:
3444
    case R_PARISC_DPREL14DR:
3445
    case R_PARISC_DPREL14R:
3446
    case R_PARISC_DPREL14F:
3447
    case R_PARISC_GPREL16F:
3448
    case R_PARISC_GPREL16WF:
3449
    case R_PARISC_GPREL16DF:
3450
      {
3451
        /* Subtract out the global pointer value to make value a DLT
3452
           relative address.  */
3453
        value -= _bfd_get_gp_value (output_bfd);
3454
 
3455
        /* All DLTREL relocations are basically the same at this point,
3456
           except that we need different field selectors for the 21bit
3457
           version vs the 14bit versions.  */
3458
        if (r_type == R_PARISC_DLTREL21L
3459
            || r_type == R_PARISC_DPREL21L)
3460
          value = hppa_field_adjust (value, addend, e_lrsel);
3461
        else if (r_type == R_PARISC_DLTREL14F
3462
                 || r_type == R_PARISC_DPREL14F
3463
                 || r_type == R_PARISC_GPREL16F
3464
                 || r_type == R_PARISC_GPREL16WF
3465
                 || r_type == R_PARISC_GPREL16DF)
3466
          value = hppa_field_adjust (value, addend, e_fsel);
3467
        else
3468
          value = hppa_field_adjust (value, addend, e_rrsel);
3469
 
3470
        insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
3471
        break;
3472
      }
3473
 
3474
    case R_PARISC_DIR21L:
3475
    case R_PARISC_DIR17R:
3476
    case R_PARISC_DIR17F:
3477
    case R_PARISC_DIR14R:
3478
    case R_PARISC_DIR14F:
3479
    case R_PARISC_DIR14WR:
3480
    case R_PARISC_DIR14DR:
3481
    case R_PARISC_DIR16F:
3482
    case R_PARISC_DIR16WF:
3483
    case R_PARISC_DIR16DF:
3484
      {
3485
        /* All DIR relocations are basically the same at this point,
3486
           except that branch offsets need to be divided by four, and
3487
           we need different field selectors.  Note that we don't
3488
           redirect absolute calls to local stubs.  */
3489
 
3490
        if (r_type == R_PARISC_DIR21L)
3491
          value = hppa_field_adjust (value, addend, e_lrsel);
3492
        else if (r_type == R_PARISC_DIR17F
3493
                 || r_type == R_PARISC_DIR16F
3494
                 || r_type == R_PARISC_DIR16WF
3495
                 || r_type == R_PARISC_DIR16DF
3496
                 || r_type == R_PARISC_DIR14F)
3497
          value = hppa_field_adjust (value, addend, e_fsel);
3498
        else
3499
          value = hppa_field_adjust (value, addend, e_rrsel);
3500
 
3501
        if (r_type == R_PARISC_DIR17R || r_type == R_PARISC_DIR17F)
3502
          /* All branches are implicitly shifted by 2 places.  */
3503
          value >>= 2;
3504
 
3505
        insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
3506
        break;
3507
      }
3508
 
3509
    case R_PARISC_PLTOFF21L:
3510
    case R_PARISC_PLTOFF14R:
3511
    case R_PARISC_PLTOFF14F:
3512
    case R_PARISC_PLTOFF14WR:
3513
    case R_PARISC_PLTOFF14DR:
3514
    case R_PARISC_PLTOFF16F:
3515
    case R_PARISC_PLTOFF16WF:
3516
    case R_PARISC_PLTOFF16DF:
3517
      {
3518
        /* We want the value of the PLT offset for this symbol, not
3519
           the symbol's actual address.  Note that __gp may not point
3520
           to the start of the DLT, so we have to compute the absolute
3521
           address, then subtract out the value of __gp.  */
3522
        value = (hh->plt_offset
3523
                 + hppa_info->plt_sec->output_offset
3524
                 + hppa_info->plt_sec->output_section->vma);
3525
        value -= _bfd_get_gp_value (output_bfd);
3526
 
3527
        /* All PLTOFF relocations are basically the same at this point,
3528
           except that we need different field selectors for the 21bit
3529
           version vs the 14bit versions.  */
3530
        if (r_type == R_PARISC_PLTOFF21L)
3531
          value = hppa_field_adjust (value, addend, e_lrsel);
3532
        else if (r_type == R_PARISC_PLTOFF14F
3533
                 || r_type == R_PARISC_PLTOFF16F
3534
                 || r_type == R_PARISC_PLTOFF16WF
3535
                 || r_type == R_PARISC_PLTOFF16DF)
3536
          value = hppa_field_adjust (value, addend, e_fsel);
3537
        else
3538
          value = hppa_field_adjust (value, addend, e_rrsel);
3539
 
3540
        insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
3541
        break;
3542
      }
3543
 
3544
    case R_PARISC_LTOFF_FPTR32:
3545
      {
3546
        /* We may still need to create the FPTR itself if it was for
3547
           a local symbol.  */
3548
        if (hh == NULL)
3549
          {
3550
            /* The first two words of an .opd entry are zero.  */
3551
            memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16);
3552
 
3553
            /* The next word is the address of the function.  */
3554
            bfd_put_64 (hppa_info->opd_sec->owner, value + addend,
3555
                        (hppa_info->opd_sec->contents
3556
                         + hh->opd_offset + 16));
3557
 
3558
            /* The last word is our local __gp value.  */
3559
            value = _bfd_get_gp_value
3560
                      (hppa_info->opd_sec->output_section->owner);
3561
            bfd_put_64 (hppa_info->opd_sec->owner, value,
3562
                        hppa_info->opd_sec->contents + hh->opd_offset + 24);
3563
 
3564
            /* The DLT value is the address of the .opd entry.  */
3565
            value = (hh->opd_offset
3566
                     + hppa_info->opd_sec->output_offset
3567
                     + hppa_info->opd_sec->output_section->vma);
3568
 
3569
            bfd_put_64 (hppa_info->dlt_sec->owner,
3570
                        value,
3571
                        hppa_info->dlt_sec->contents + hh->dlt_offset);
3572
          }
3573
 
3574
        /* We want the value of the DLT offset for this symbol, not
3575
           the symbol's actual address.  Note that __gp may not point
3576
           to the start of the DLT, so we have to compute the absolute
3577
           address, then subtract out the value of __gp.  */
3578
        value = (hh->dlt_offset
3579
                 + hppa_info->dlt_sec->output_offset
3580
                 + hppa_info->dlt_sec->output_section->vma);
3581
        value -= _bfd_get_gp_value (output_bfd);
3582
        bfd_put_32 (input_bfd, value, hit_data);
3583
        return bfd_reloc_ok;
3584
      }
3585
 
3586
    case R_PARISC_LTOFF_FPTR64:
3587
    case R_PARISC_LTOFF_TP64:
3588
      {
3589
        /* We may still need to create the FPTR itself if it was for
3590
           a local symbol.  */
3591
        if (eh == NULL && r_type == R_PARISC_LTOFF_FPTR64)
3592
          {
3593
            /* The first two words of an .opd entry are zero.  */
3594
            memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16);
3595
 
3596
            /* The next word is the address of the function.  */
3597
            bfd_put_64 (hppa_info->opd_sec->owner, value + addend,
3598
                        (hppa_info->opd_sec->contents
3599
                         + hh->opd_offset + 16));
3600
 
3601
            /* The last word is our local __gp value.  */
3602
            value = _bfd_get_gp_value
3603
                      (hppa_info->opd_sec->output_section->owner);
3604
            bfd_put_64 (hppa_info->opd_sec->owner, value,
3605
                        hppa_info->opd_sec->contents + hh->opd_offset + 24);
3606
 
3607
            /* The DLT value is the address of the .opd entry.  */
3608
            value = (hh->opd_offset
3609
                     + hppa_info->opd_sec->output_offset
3610
                     + hppa_info->opd_sec->output_section->vma);
3611
 
3612
            bfd_put_64 (hppa_info->dlt_sec->owner,
3613
                        value,
3614
                        hppa_info->dlt_sec->contents + hh->dlt_offset);
3615
          }
3616
 
3617
        /* We want the value of the DLT offset for this symbol, not
3618
           the symbol's actual address.  Note that __gp may not point
3619
           to the start of the DLT, so we have to compute the absolute
3620
           address, then subtract out the value of __gp.  */
3621
        value = (hh->dlt_offset
3622
                 + hppa_info->dlt_sec->output_offset
3623
                 + hppa_info->dlt_sec->output_section->vma);
3624
        value -= _bfd_get_gp_value (output_bfd);
3625
        bfd_put_64 (input_bfd, value, hit_data);
3626
        return bfd_reloc_ok;
3627
      }
3628
 
3629
    case R_PARISC_DIR32:
3630
      bfd_put_32 (input_bfd, value + addend, hit_data);
3631
      return bfd_reloc_ok;
3632
 
3633
    case R_PARISC_DIR64:
3634
      bfd_put_64 (input_bfd, value + addend, hit_data);
3635
      return bfd_reloc_ok;
3636
 
3637
    case R_PARISC_GPREL64:
3638
      /* Subtract out the global pointer value to make value a DLT
3639
         relative address.  */
3640
      value -= _bfd_get_gp_value (output_bfd);
3641
 
3642
      bfd_put_64 (input_bfd, value + addend, hit_data);
3643
      return bfd_reloc_ok;
3644
 
3645
    case R_PARISC_LTOFF64:
3646
        /* We want the value of the DLT offset for this symbol, not
3647
           the symbol's actual address.  Note that __gp may not point
3648
           to the start of the DLT, so we have to compute the absolute
3649
           address, then subtract out the value of __gp.  */
3650
      value = (hh->dlt_offset
3651
               + hppa_info->dlt_sec->output_offset
3652
               + hppa_info->dlt_sec->output_section->vma);
3653
      value -= _bfd_get_gp_value (output_bfd);
3654
 
3655
      bfd_put_64 (input_bfd, value + addend, hit_data);
3656
      return bfd_reloc_ok;
3657
 
3658
    case R_PARISC_PCREL32:
3659
      {
3660
        /* If this is a call to a function defined in another dynamic
3661
           library, then redirect the call to the local stub for this
3662
           function.  */
3663
        if (sym_sec == NULL || sym_sec->output_section == NULL)
3664
          value = (hh->stub_offset + hppa_info->stub_sec->output_offset
3665
                   + hppa_info->stub_sec->output_section->vma);
3666
 
3667
        /* Turn VALUE into a proper PC relative address.  */
3668
        value -= (offset + input_section->output_offset
3669
                  + input_section->output_section->vma);
3670
 
3671
        value += addend;
3672
        value -= 8;
3673
        bfd_put_32 (input_bfd, value, hit_data);
3674
        return bfd_reloc_ok;
3675
      }
3676
 
3677
    case R_PARISC_PCREL64:
3678
      {
3679
        /* If this is a call to a function defined in another dynamic
3680
           library, then redirect the call to the local stub for this
3681
           function.  */
3682
        if (sym_sec == NULL || sym_sec->output_section == NULL)
3683
          value = (hh->stub_offset + hppa_info->stub_sec->output_offset
3684
                   + hppa_info->stub_sec->output_section->vma);
3685
 
3686
        /* Turn VALUE into a proper PC relative address.  */
3687
        value -= (offset + input_section->output_offset
3688
                  + input_section->output_section->vma);
3689
 
3690
        value += addend;
3691
        value -= 8;
3692
        bfd_put_64 (input_bfd, value, hit_data);
3693
        return bfd_reloc_ok;
3694
      }
3695
 
3696
    case R_PARISC_FPTR64:
3697
      {
3698
        bfd_vma off;
3699
 
3700
        /* We may still need to create the FPTR itself if it was for
3701
           a local symbol.  */
3702
        if (hh == NULL)
3703
          {
3704
            bfd_vma *local_opd_offsets;
3705
 
3706
            if (local_offsets == NULL)
3707
              abort ();
3708
 
3709
            local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info;
3710
            off = local_opd_offsets[r_symndx];
3711
 
3712
            /* The last bit records whether we've already initialised
3713
               this local .opd entry.  */
3714
            if ((off & 1) != 0)
3715
              {
3716
                BFD_ASSERT (off != (bfd_vma) -1);
3717
                off &= ~1;
3718
              }
3719
            else
3720
              {
3721
                /* The first two words of an .opd entry are zero.  */
3722
                memset (hppa_info->opd_sec->contents + off, 0, 16);
3723
 
3724
                /* The next word is the address of the function.  */
3725
                bfd_put_64 (hppa_info->opd_sec->owner, value + addend,
3726
                            (hppa_info->opd_sec->contents + off + 16));
3727
 
3728
                /* The last word is our local __gp value.  */
3729
                value = _bfd_get_gp_value
3730
                          (hppa_info->opd_sec->output_section->owner);
3731
                bfd_put_64 (hppa_info->opd_sec->owner, value,
3732
                            hppa_info->opd_sec->contents + off + 24);
3733
              }
3734
          }
3735
        else
3736
          off = hh->opd_offset;
3737
 
3738
        if (hh == NULL || hh->want_opd)
3739
          /* We want the value of the OPD offset for this symbol.  */
3740
          value = (off
3741
                   + hppa_info->opd_sec->output_offset
3742
                   + hppa_info->opd_sec->output_section->vma);
3743
        else
3744
          /* We want the address of the symbol.  */
3745
          value += addend;
3746
 
3747
        bfd_put_64 (input_bfd, value, hit_data);
3748
        return bfd_reloc_ok;
3749
      }
3750
 
3751
    case R_PARISC_SECREL32:
3752
      if (sym_sec)
3753
        value -= sym_sec->output_section->vma;
3754
      bfd_put_32 (input_bfd, value + addend, hit_data);
3755
      return bfd_reloc_ok;
3756
 
3757
    case R_PARISC_SEGREL32:
3758
    case R_PARISC_SEGREL64:
3759
      {
3760
        /* If this is the first SEGREL relocation, then initialize
3761
           the segment base values.  */
3762
        if (hppa_info->text_segment_base == (bfd_vma) -1)
3763
          bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs,
3764
                                 hppa_info);
3765
 
3766
        /* VALUE holds the absolute address.  We want to include the
3767
           addend, then turn it into a segment relative address.
3768
 
3769
           The segment is derived from SYM_SEC.  We assume that there are
3770
           only two segments of note in the resulting executable/shlib.
3771
           A readonly segment (.text) and a readwrite segment (.data).  */
3772
        value += addend;
3773
 
3774
        if (sym_sec->flags & SEC_CODE)
3775
          value -= hppa_info->text_segment_base;
3776
        else
3777
          value -= hppa_info->data_segment_base;
3778
 
3779
        if (r_type == R_PARISC_SEGREL32)
3780
          bfd_put_32 (input_bfd, value, hit_data);
3781
        else
3782
          bfd_put_64 (input_bfd, value, hit_data);
3783
        return bfd_reloc_ok;
3784
      }
3785
 
3786
    /* Something we don't know how to handle.  */
3787
    default:
3788
      return bfd_reloc_notsupported;
3789
    }
3790
 
3791
  /* Update the instruction word.  */
3792
  bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3793
  return bfd_reloc_ok;
3794
}
3795
 
3796
/* Relocate an HPPA ELF section.  */
3797
 
3798
static bfd_boolean
3799
elf64_hppa_relocate_section (bfd *output_bfd,
3800
                           struct bfd_link_info *info,
3801
                           bfd *input_bfd,
3802
                           asection *input_section,
3803
                           bfd_byte *contents,
3804
                           Elf_Internal_Rela *relocs,
3805
                           Elf_Internal_Sym *local_syms,
3806
                           asection **local_sections)
3807
{
3808
  Elf_Internal_Shdr *symtab_hdr;
3809
  Elf_Internal_Rela *rel;
3810
  Elf_Internal_Rela *relend;
3811
  struct elf64_hppa_link_hash_table *hppa_info;
3812
 
3813
  hppa_info = hppa_link_hash_table (info);
3814
  symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3815
 
3816
  rel = relocs;
3817
  relend = relocs + input_section->reloc_count;
3818
  for (; rel < relend; rel++)
3819
    {
3820
      int r_type;
3821
      reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info);
3822
      unsigned long r_symndx;
3823
      struct elf_link_hash_entry *eh;
3824
      Elf_Internal_Sym *sym;
3825
      asection *sym_sec;
3826
      bfd_vma relocation;
3827
      bfd_reloc_status_type r;
3828
      bfd_boolean warned_undef;
3829
 
3830
      r_type = ELF_R_TYPE (rel->r_info);
3831
      if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
3832
        {
3833
          bfd_set_error (bfd_error_bad_value);
3834
          return FALSE;
3835
        }
3836
      if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3837
          || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3838
        continue;
3839
 
3840
      /* This is a final link.  */
3841
      r_symndx = ELF_R_SYM (rel->r_info);
3842
      eh = NULL;
3843
      sym = NULL;
3844
      sym_sec = NULL;
3845
      warned_undef = FALSE;
3846
      if (r_symndx < symtab_hdr->sh_info)
3847
        {
3848
          /* This is a local symbol, hh defaults to NULL.  */
3849
          sym = local_syms + r_symndx;
3850
          sym_sec = local_sections[r_symndx];
3851
          relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel);
3852
        }
3853
      else
3854
        {
3855
          /* This is not a local symbol.  */
3856
          bfd_boolean unresolved_reloc;
3857
          struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3858
 
3859
          /* It seems this can happen with erroneous or unsupported
3860
             input (mixing a.out and elf in an archive, for example.)  */
3861
          if (sym_hashes == NULL)
3862
            return FALSE;
3863
 
3864
          eh = sym_hashes[r_symndx - symtab_hdr->sh_info];
3865
 
3866
          while (eh->root.type == bfd_link_hash_indirect
3867
                 || eh->root.type == bfd_link_hash_warning)
3868
            eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
3869
 
3870
          warned_undef = FALSE;
3871
          unresolved_reloc = FALSE;
3872
          relocation = 0;
3873
          if (eh->root.type == bfd_link_hash_defined
3874
              || eh->root.type == bfd_link_hash_defweak)
3875
            {
3876
              sym_sec = eh->root.u.def.section;
3877
              if (sym_sec == NULL
3878
                  || sym_sec->output_section == NULL)
3879
                /* Set a flag that will be cleared later if we find a
3880
                   relocation value for this symbol.  output_section
3881
                   is typically NULL for symbols satisfied by a shared
3882
                   library.  */
3883
                unresolved_reloc = TRUE;
3884
              else
3885
                relocation = (eh->root.u.def.value
3886
                              + sym_sec->output_section->vma
3887
                              + sym_sec->output_offset);
3888
            }
3889
          else if (eh->root.type == bfd_link_hash_undefweak)
3890
            ;
3891
          else if (info->unresolved_syms_in_objects == RM_IGNORE
3892
                   && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
3893
            ;
3894
          else if (!info->relocatable
3895
                   && elf_hppa_is_dynamic_loader_symbol (eh->root.root.string))
3896
            continue;
3897
          else if (!info->relocatable)
3898
            {
3899
              bfd_boolean err;
3900
              err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
3901
                     || ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT);
3902
              if (!info->callbacks->undefined_symbol (info,
3903
                                                      eh->root.root.string,
3904
                                                      input_bfd,
3905
                                                      input_section,
3906
                                                      rel->r_offset, err))
3907
                return FALSE;
3908
              warned_undef = TRUE;
3909
            }
3910
 
3911
          if (!info->relocatable
3912
              && relocation == 0
3913
              && eh->root.type != bfd_link_hash_defined
3914
              && eh->root.type != bfd_link_hash_defweak
3915
              && eh->root.type != bfd_link_hash_undefweak)
3916
            {
3917
              if (info->unresolved_syms_in_objects == RM_IGNORE
3918
                  && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3919
                  && eh->type == STT_PARISC_MILLI)
3920
                {
3921
                  if (! info->callbacks->undefined_symbol
3922
                      (info, eh_name (eh), input_bfd,
3923
                       input_section, rel->r_offset, FALSE))
3924
                    return FALSE;
3925
                  warned_undef = TRUE;
3926
                }
3927
            }
3928
        }
3929
 
3930
      if (sym_sec != NULL && elf_discarded_section (sym_sec))
3931
        {
3932
          /* For relocs against symbols from removed linkonce sections,
3933
             or sections discarded by a linker script, we just want the
3934
             section contents zeroed.  Avoid any special processing.  */
3935
          _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
3936
          rel->r_info = 0;
3937
          rel->r_addend = 0;
3938
          continue;
3939
        }
3940
 
3941
      if (info->relocatable)
3942
        continue;
3943
 
3944
      r = elf_hppa_final_link_relocate (rel, input_bfd, output_bfd,
3945
                                        input_section, contents,
3946
                                        relocation, info, sym_sec,
3947
                                        eh);
3948
 
3949
      if (r != bfd_reloc_ok)
3950
        {
3951
          switch (r)
3952
            {
3953
            default:
3954
              abort ();
3955
            case bfd_reloc_overflow:
3956
              {
3957
                const char *sym_name;
3958
 
3959
                if (eh != NULL)
3960
                  sym_name = NULL;
3961
                else
3962
                  {
3963
                    sym_name = bfd_elf_string_from_elf_section (input_bfd,
3964
                                                                symtab_hdr->sh_link,
3965
                                                                sym->st_name);
3966
                    if (sym_name == NULL)
3967
                      return FALSE;
3968
                    if (*sym_name == '\0')
3969
                      sym_name = bfd_section_name (input_bfd, sym_sec);
3970
                  }
3971
 
3972
                if (!((*info->callbacks->reloc_overflow)
3973
                      (info, (eh ? &eh->root : NULL), sym_name,
3974
                       howto->name, (bfd_vma) 0, input_bfd,
3975
                       input_section, rel->r_offset)))
3976
                  return FALSE;
3977
              }
3978
              break;
3979
            }
3980
        }
3981
    }
3982
  return TRUE;
3983
}
3984
 
3985 24 jeremybenn
static const struct bfd_elf_special_section elf64_hppa_special_sections[] =
3986
{
3987
  { STRING_COMMA_LEN (".fini"),  0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3988
  { STRING_COMMA_LEN (".init"),  0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3989
  { STRING_COMMA_LEN (".plt"),   0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
3990
  { STRING_COMMA_LEN (".dlt"),   0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
3991
  { STRING_COMMA_LEN (".sdata"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
3992
  { STRING_COMMA_LEN (".sbss"),  0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
3993
  { STRING_COMMA_LEN (".tbss"),  0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_HP_TLS },
3994
  { NULL,                    0,  0, 0,            0 }
3995
};
3996
 
3997
/* The hash bucket size is the standard one, namely 4.  */
3998
 
3999
const struct elf_size_info hppa64_elf_size_info =
4000
{
4001
  sizeof (Elf64_External_Ehdr),
4002
  sizeof (Elf64_External_Phdr),
4003
  sizeof (Elf64_External_Shdr),
4004
  sizeof (Elf64_External_Rel),
4005
  sizeof (Elf64_External_Rela),
4006
  sizeof (Elf64_External_Sym),
4007
  sizeof (Elf64_External_Dyn),
4008
  sizeof (Elf_External_Note),
4009
  4,
4010
  1,
4011
  64, 3,
4012
  ELFCLASS64, EV_CURRENT,
4013
  bfd_elf64_write_out_phdrs,
4014
  bfd_elf64_write_shdrs_and_ehdr,
4015
  bfd_elf64_checksum_contents,
4016
  bfd_elf64_write_relocs,
4017
  bfd_elf64_swap_symbol_in,
4018
  bfd_elf64_swap_symbol_out,
4019
  bfd_elf64_slurp_reloc_table,
4020
  bfd_elf64_slurp_symbol_table,
4021
  bfd_elf64_swap_dyn_in,
4022
  bfd_elf64_swap_dyn_out,
4023
  bfd_elf64_swap_reloc_in,
4024
  bfd_elf64_swap_reloc_out,
4025
  bfd_elf64_swap_reloca_in,
4026
  bfd_elf64_swap_reloca_out
4027
};
4028
 
4029
#define TARGET_BIG_SYM                  bfd_elf64_hppa_vec
4030
#define TARGET_BIG_NAME                 "elf64-hppa"
4031
#define ELF_ARCH                        bfd_arch_hppa
4032
#define ELF_MACHINE_CODE                EM_PARISC
4033
/* This is not strictly correct.  The maximum page size for PA2.0 is
4034
   64M.  But everything still uses 4k.  */
4035
#define ELF_MAXPAGESIZE                 0x1000
4036
#define ELF_OSABI                       ELFOSABI_HPUX
4037
 
4038
#define bfd_elf64_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4039
#define bfd_elf64_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4040
#define bfd_elf64_bfd_is_local_label_name       elf_hppa_is_local_label_name
4041
#define elf_info_to_howto               elf_hppa_info_to_howto
4042
#define elf_info_to_howto_rel           elf_hppa_info_to_howto_rel
4043
 
4044
#define elf_backend_section_from_shdr   elf64_hppa_section_from_shdr
4045
#define elf_backend_object_p            elf64_hppa_object_p
4046
#define elf_backend_final_write_processing \
4047
                                        elf_hppa_final_write_processing
4048
#define elf_backend_fake_sections       elf_hppa_fake_sections
4049
#define elf_backend_add_symbol_hook     elf_hppa_add_symbol_hook
4050
 
4051
#define elf_backend_relocate_section    elf_hppa_relocate_section
4052
 
4053
#define bfd_elf64_bfd_final_link        elf_hppa_final_link
4054
 
4055
#define elf_backend_create_dynamic_sections \
4056
                                        elf64_hppa_create_dynamic_sections
4057
#define elf_backend_post_process_headers        elf64_hppa_post_process_headers
4058
 
4059
#define elf_backend_omit_section_dynsym \
4060
  ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4061
#define elf_backend_adjust_dynamic_symbol \
4062
                                        elf64_hppa_adjust_dynamic_symbol
4063
 
4064
#define elf_backend_size_dynamic_sections \
4065
                                        elf64_hppa_size_dynamic_sections
4066
 
4067
#define elf_backend_finish_dynamic_symbol \
4068
                                        elf64_hppa_finish_dynamic_symbol
4069
#define elf_backend_finish_dynamic_sections \
4070
                                        elf64_hppa_finish_dynamic_sections
4071
#define elf_backend_grok_prstatus       elf64_hppa_grok_prstatus
4072
#define elf_backend_grok_psinfo         elf64_hppa_grok_psinfo
4073
 
4074
/* Stuff for the BFD linker: */
4075
#define bfd_elf64_bfd_link_hash_table_create \
4076
        elf64_hppa_hash_table_create
4077
 
4078
#define elf_backend_check_relocs \
4079
        elf64_hppa_check_relocs
4080
 
4081
#define elf_backend_size_info \
4082
  hppa64_elf_size_info
4083
 
4084
#define elf_backend_additional_program_headers \
4085
        elf64_hppa_additional_program_headers
4086
 
4087
#define elf_backend_modify_segment_map \
4088
        elf64_hppa_modify_segment_map
4089
 
4090
#define elf_backend_link_output_symbol_hook \
4091
        elf64_hppa_link_output_symbol_hook
4092
 
4093
#define elf_backend_want_got_plt        0
4094
#define elf_backend_plt_readonly        0
4095
#define elf_backend_want_plt_sym        0
4096
#define elf_backend_got_header_size     0
4097
#define elf_backend_type_change_ok      TRUE
4098
#define elf_backend_get_symbol_type     elf64_hppa_elf_get_symbol_type
4099
#define elf_backend_reloc_type_class    elf64_hppa_reloc_type_class
4100
#define elf_backend_rela_normal         1
4101
#define elf_backend_special_sections    elf64_hppa_special_sections
4102
#define elf_backend_action_discarded    elf_hppa_action_discarded
4103
#define elf_backend_section_from_phdr   elf64_hppa_section_from_phdr
4104
 
4105
#define elf64_bed                       elf64_hppa_hpux_bed
4106
 
4107
#include "elf64-target.h"
4108
 
4109
#undef TARGET_BIG_SYM
4110
#define TARGET_BIG_SYM                  bfd_elf64_hppa_linux_vec
4111
#undef TARGET_BIG_NAME
4112
#define TARGET_BIG_NAME                 "elf64-hppa-linux"
4113
#undef ELF_OSABI
4114
#define ELF_OSABI                       ELFOSABI_LINUX
4115
#undef elf_backend_post_process_headers
4116
#define elf_backend_post_process_headers _bfd_elf_set_osabi
4117
#undef elf64_bed
4118
#define elf64_bed                       elf64_hppa_linux_bed
4119
 
4120
#include "elf64-target.h"

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