bfd/elf32-vax.c

   1 /* VAX series support for 32-bit ELF
   2    Copyright (C) 1993-2019 Free Software Foundation, Inc.
   3    Contributed by Matt Thomas <matt@3am-software.com>.
   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 #include "sysdep.h"
  23 #include "bfd.h"
  24 #include "bfdlink.h"
  25 #include "libbfd.h"
  26 #include "elf-bfd.h"
  27 #include "elf/vax.h"
  28
  29 static reloc_howto_type *reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
  30 static bfd_boolean rtype_to_howto (bfd *, arelent *, Elf_Internal_Rela *);
  31 static struct bfd_hash_entry *elf_vax_link_hash_newfunc (struct bfd_hash_entry *,
  32                                                          struct bfd_hash_table *,
  33                                                          const char *);
  34 static struct bfd_link_hash_table *elf_vax_link_hash_table_create (bfd *);
  35 static bfd_boolean elf_vax_check_relocs (bfd *, struct bfd_link_info *,
  36                                          asection *, const Elf_Internal_Rela *);
  37 static bfd_boolean elf_vax_adjust_dynamic_symbol (struct bfd_link_info *,
  38                                                   struct elf_link_hash_entry *);
  39 static bfd_boolean elf_vax_size_dynamic_sections (bfd *, struct bfd_link_info *);
  40 static bfd_boolean elf_vax_relocate_section (bfd *, struct bfd_link_info *,
  41                                              bfd *, asection *, bfd_byte *,
  42                                              Elf_Internal_Rela *,
  43                                              Elf_Internal_Sym *, asection **);
  44 static bfd_boolean elf_vax_finish_dynamic_symbol (bfd *, struct bfd_link_info *,
  45                                                   struct elf_link_hash_entry *,
  46                                                   Elf_Internal_Sym *);
  47 static bfd_boolean elf_vax_finish_dynamic_sections (bfd *,
  48                                                     struct bfd_link_info *);
  49 static bfd_vma elf_vax_plt_sym_val (bfd_vma, const asection *,
  50                                     const arelent *);
  51
  52 static bfd_boolean elf32_vax_set_private_flags (bfd *, flagword);
  53 static bfd_boolean elf32_vax_print_private_bfd_data (bfd *, void *);
  54
  55 static reloc_howto_type howto_table[] = {
  56   HOWTO (R_VAX_NONE,            /* type */
  57          0,                     /* rightshift */
  58          3,                     /* size (0 = byte, 1 = short, 2 = long) */
  59          0,                     /* bitsize */
  60          FALSE,                 /* pc_relative */
  61          0,                     /* bitpos */
  62          complain_overflow_dont, /* complain_on_overflow */
  63          bfd_elf_generic_reloc, /* special_function */
  64          "R_VAX_NONE",          /* name */
  65          FALSE,                 /* partial_inplace */
  66          0,                     /* src_mask */
  67          0x00000000,            /* dst_mask */
  68          FALSE),                /* pcrel_offset */
  69
  70   HOWTO (R_VAX_32,              /* type */
  71          0,                     /* rightshift */
  72          2,                     /* size (0 = byte, 1 = short, 2 = long) */
  73          32,                    /* bitsize */
  74          FALSE,                 /* pc_relative */
  75          0,                     /* bitpos */
  76          complain_overflow_bitfield, /* complain_on_overflow */
  77          bfd_elf_generic_reloc, /* special_function */
  78          "R_VAX_32",            /* name */
  79          FALSE,                 /* partial_inplace */
  80          0,                     /* src_mask */
  81          0xffffffff,            /* dst_mask */
  82          FALSE),                /* pcrel_offset */
  83
  84   HOWTO (R_VAX_16,              /* type */
  85          0,                     /* rightshift */
  86          1,                     /* size (0 = byte, 1 = short, 2 = long) */
  87          16,                    /* bitsize */
  88          FALSE,                 /* pc_relative */
  89          0,                     /* bitpos */
  90          complain_overflow_bitfield, /* complain_on_overflow */
  91          bfd_elf_generic_reloc, /* special_function */
  92          "R_VAX_16",            /* name */
  93          FALSE,                 /* partial_inplace */
  94          0,                     /* src_mask */
  95          0x0000ffff,            /* dst_mask */
  96          FALSE),                /* pcrel_offset */
  97
  98   HOWTO (R_VAX_8,               /* type */
  99          0,                     /* rightshift */
 100          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 101          8,                     /* bitsize */
 102          FALSE,                 /* pc_relative */
 103          0,                     /* bitpos */
 104          complain_overflow_bitfield, /* complain_on_overflow */
 105          bfd_elf_generic_reloc, /* special_function */
 106          "R_VAX_8",             /* name */
 107          FALSE,                 /* partial_inplace */
 108          0,                     /* src_mask */
 109          0x000000ff,            /* dst_mask */
 110          FALSE),                /* pcrel_offset */
 111
 112   HOWTO (R_VAX_PC32,            /* type */
 113          0,                     /* rightshift */
 114          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 115          32,                    /* bitsize */
 116          TRUE,                  /* pc_relative */
 117          0,                     /* bitpos */
 118          complain_overflow_bitfield, /* complain_on_overflow */
 119          bfd_elf_generic_reloc, /* special_function */
 120          "R_VAX_PC32",          /* name */
 121          FALSE,                 /* partial_inplace */
 122          0,                     /* src_mask */
 123          0xffffffff,            /* dst_mask */
 124          TRUE),                 /* pcrel_offset */
 125
 126   HOWTO (R_VAX_PC16,            /* type */
 127          0,                     /* rightshift */
 128          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 129          16,                    /* bitsize */
 130          TRUE,                  /* pc_relative */
 131          0,                     /* bitpos */
 132          complain_overflow_signed, /* complain_on_overflow */
 133          bfd_elf_generic_reloc, /* special_function */
 134          "R_VAX_PC16",          /* name */
 135          FALSE,                 /* partial_inplace */
 136          0,                     /* src_mask */
 137          0x0000ffff,            /* dst_mask */
 138          TRUE),                 /* pcrel_offset */
 139
 140   HOWTO (R_VAX_PC8,             /* type */
 141          0,                     /* rightshift */
 142          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 143          8,                     /* bitsize */
 144          TRUE,                  /* pc_relative */
 145          0,                     /* bitpos */
 146          complain_overflow_signed, /* complain_on_overflow */
 147          bfd_elf_generic_reloc, /* special_function */
 148          "R_VAX_PC8",           /* name */
 149          FALSE,                 /* partial_inplace */
 150          0,                     /* src_mask */
 151          0x000000ff,            /* dst_mask */
 152          TRUE),                 /* pcrel_offset */
 153
 154   HOWTO (R_VAX_GOT32,           /* type */
 155          0,                     /* rightshift */
 156          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 157          32,                    /* bitsize */
 158          TRUE,                  /* pc_relative */
 159          0,                     /* bitpos */
 160          complain_overflow_bitfield, /* complain_on_overflow */
 161          bfd_elf_generic_reloc, /* special_function */
 162          "R_VAX_GOT32",         /* name */
 163          FALSE,                 /* partial_inplace */
 164          0,                     /* src_mask */
 165          0xffffffff,            /* dst_mask */
 166          TRUE),                 /* pcrel_offset */
 167
 168   EMPTY_HOWTO (-1),
 169   EMPTY_HOWTO (-1),
 170   EMPTY_HOWTO (-1),
 171   EMPTY_HOWTO (-1),
 172   EMPTY_HOWTO (-1),
 173
 174   HOWTO (R_VAX_PLT32,           /* type */
 175          0,                     /* rightshift */
 176          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 177          32,                    /* bitsize */
 178          TRUE,                  /* pc_relative */
 179          0,                     /* bitpos */
 180          complain_overflow_bitfield, /* complain_on_overflow */
 181          bfd_elf_generic_reloc, /* special_function */
 182          "R_VAX_PLT32",         /* name */
 183          FALSE,                 /* partial_inplace */
 184          0,                     /* src_mask */
 185          0xffffffff,            /* dst_mask */
 186          TRUE),                 /* pcrel_offset */
 187
 188   EMPTY_HOWTO (-1),
 189   EMPTY_HOWTO (-1),
 190   EMPTY_HOWTO (-1),
 191   EMPTY_HOWTO (-1),
 192   EMPTY_HOWTO (-1),
 193
 194   HOWTO (R_VAX_COPY,            /* type */
 195          0,                     /* rightshift */
 196          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 197          0,                     /* bitsize */
 198          FALSE,                 /* pc_relative */
 199          0,                     /* bitpos */
 200          complain_overflow_dont, /* complain_on_overflow */
 201          bfd_elf_generic_reloc, /* special_function */
 202          "R_VAX_COPY",          /* name */
 203          FALSE,                 /* partial_inplace */
 204          0,                     /* src_mask */
 205          0xffffffff,            /* dst_mask */
 206          FALSE),                /* pcrel_offset */
 207
 208   HOWTO (R_VAX_GLOB_DAT,        /* type */
 209          0,                     /* rightshift */
 210          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 211          32,                    /* bitsize */
 212          FALSE,                 /* pc_relative */
 213          0,                     /* bitpos */
 214          complain_overflow_dont, /* complain_on_overflow */
 215          bfd_elf_generic_reloc, /* special_function */
 216          "R_VAX_GLOB_DAT",      /* name */
 217          FALSE,                 /* partial_inplace */
 218          0,                     /* src_mask */
 219          0xffffffff,            /* dst_mask */
 220          FALSE),                /* pcrel_offset */
 221
 222   HOWTO (R_VAX_JMP_SLOT,        /* type */
 223          0,                     /* rightshift */
 224          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 225          32,                    /* bitsize */
 226          FALSE,                 /* pc_relative */
 227          0,                     /* bitpos */
 228          complain_overflow_dont, /* complain_on_overflow */
 229          bfd_elf_generic_reloc, /* special_function */
 230          "R_VAX_JMP_SLOT",      /* name */
 231          FALSE,                 /* partial_inplace */
 232          0,                     /* src_mask */
 233          0xffffffff,            /* dst_mask */
 234          FALSE),                /* pcrel_offset */
 235
 236   HOWTO (R_VAX_RELATIVE,        /* type */
 237          0,                     /* rightshift */
 238          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 239          32,                    /* bitsize */
 240          FALSE,                 /* pc_relative */
 241          0,                     /* bitpos */
 242          complain_overflow_dont, /* complain_on_overflow */
 243          bfd_elf_generic_reloc, /* special_function */
 244          "R_VAX_RELATIVE",      /* name */
 245          FALSE,                 /* partial_inplace */
 246          0,                     /* src_mask */
 247          0xffffffff,            /* dst_mask */
 248          FALSE),                /* pcrel_offset */
 249
 250   /* GNU extension to record C++ vtable hierarchy */
 251   HOWTO (R_VAX_GNU_VTINHERIT,   /* type */
 252          0,                     /* rightshift */
 253          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 254          0,                     /* bitsize */
 255          FALSE,                 /* pc_relative */
 256          0,                     /* bitpos */
 257          complain_overflow_dont, /* complain_on_overflow */
 258          NULL,                  /* special_function */
 259          "R_VAX_GNU_VTINHERIT", /* name */
 260          FALSE,                 /* partial_inplace */
 261          0,                     /* src_mask */
 262          0,                     /* dst_mask */
 263          FALSE),                /* pcrel_offset */
 264
 265   /* GNU extension to record C++ vtable member usage */
 266   HOWTO (R_VAX_GNU_VTENTRY,     /* type */
 267          0,                     /* rightshift */
 268          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 269          0,                     /* bitsize */
 270          FALSE,                 /* pc_relative */
 271          0,                     /* bitpos */
 272          complain_overflow_dont, /* complain_on_overflow */
 273          _bfd_elf_rel_vtable_reloc_fn, /* special_function */
 274          "R_VAX_GNU_VTENTRY",   /* name */
 275          FALSE,                 /* partial_inplace */
 276          0,                     /* src_mask */
 277          0,                     /* dst_mask */
 278          FALSE),                /* pcrel_offset */
 279 };
 280
 281 static bfd_boolean
 282 rtype_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
 283 {
 284   unsigned int r_type;
 285
 286   r_type = ELF32_R_TYPE (dst->r_info);
 287   if (r_type >= R_VAX_max)
 288     {
 289       /* xgettext:c-format */
 290       _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
 291                           abfd, r_type);
 292       bfd_set_error (bfd_error_bad_value);
 293       return FALSE;
 294     }
 295   cache_ptr->howto = &howto_table[r_type];
 296   return TRUE;
 297 }
 298
 299 #define elf_info_to_howto rtype_to_howto
 300
 301 static const struct
 302 {
 303   bfd_reloc_code_real_type bfd_val;
 304   int elf_val;
 305 } reloc_map[] = {
 306   { BFD_RELOC_NONE, R_VAX_NONE },
 307   { BFD_RELOC_32, R_VAX_32 },
 308   { BFD_RELOC_16, R_VAX_16 },
 309   { BFD_RELOC_8, R_VAX_8 },
 310   { BFD_RELOC_32_PCREL, R_VAX_PC32 },
 311   { BFD_RELOC_16_PCREL, R_VAX_PC16 },
 312   { BFD_RELOC_8_PCREL, R_VAX_PC8 },
 313   { BFD_RELOC_32_GOT_PCREL, R_VAX_GOT32 },
 314   { BFD_RELOC_32_PLT_PCREL, R_VAX_PLT32 },
 315   { BFD_RELOC_NONE, R_VAX_COPY },
 316   { BFD_RELOC_VAX_GLOB_DAT, R_VAX_GLOB_DAT },
 317   { BFD_RELOC_VAX_JMP_SLOT, R_VAX_JMP_SLOT },
 318   { BFD_RELOC_VAX_RELATIVE, R_VAX_RELATIVE },
 319   { BFD_RELOC_CTOR, R_VAX_32 },
 320   { BFD_RELOC_VTABLE_INHERIT, R_VAX_GNU_VTINHERIT },
 321   { BFD_RELOC_VTABLE_ENTRY, R_VAX_GNU_VTENTRY },
 322 };
 323
 324 static reloc_howto_type *
 325 reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code)
 326 {
 327   unsigned int i;
 328   for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++)
 329     {
 330       if (reloc_map[i].bfd_val == code)
 331         return &howto_table[reloc_map[i].elf_val];
 332     }
 333   return 0;
 334 }
 335
 336 static reloc_howto_type *
 337 reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
 338                    const char *r_name)
 339 {
 340   unsigned int i;
 341
 342   for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
 343     if (howto_table[i].name != NULL
 344         && strcasecmp (howto_table[i].name, r_name) == 0)
 345       return &howto_table[i];
 346
 347   return NULL;
 348 }
 349
 350 #define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
 351 #define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup
 352 #define ELF_ARCH bfd_arch_vax
 353 /* end code generated by elf.el */
 354 \f
 355 /* Functions for the VAX ELF linker.  */
 356
 357 /* The name of the dynamic interpreter.  This is put in the .interp
 358    section.  */
 359
 360 #define ELF_DYNAMIC_INTERPRETER "/usr/libexec/ld.elf_so"
 361
 362 /* The size in bytes of an entry in the procedure linkage table.  */
 363
 364 #define PLT_ENTRY_SIZE 12
 365
 366 /* The first entry in a procedure linkage table looks like this.  See
 367    the SVR4 ABI VAX supplement to see how this works.  */
 368
 369 static const bfd_byte elf_vax_plt0_entry[PLT_ENTRY_SIZE] =
 370 {
 371   0xdd, 0xef,           /* pushl l^ */
 372   0, 0, 0, 0,           /* offset to .plt.got + 4 */
 373   0x17, 0xff,           /* jmp @L^(pc) */
 374   0, 0, 0, 0,           /* offset to .plt.got + 8 */
 375 };
 376
 377 /* Subsequent entries in a procedure linkage table look like this.  */
 378
 379 static const bfd_byte elf_vax_plt_entry[PLT_ENTRY_SIZE] =
 380 {
 381   0xfc, 0x0f,           /* .word ^M<r11:r2> */
 382   0x16, 0xef,           /* jsb L^(pc) */
 383   0, 0, 0, 0,           /* replaced with offset to start of .plt  */
 384   0, 0, 0, 0,           /* index into .rela.plt */
 385 };
 386
 387 /* The VAX linker needs to keep track of the number of relocs that it
 388    decides to copy in check_relocs for each symbol.  This is so that it
 389    can discard PC relative relocs if it doesn't need them when linking
 390    with -Bsymbolic.  We store the information in a field extending the
 391    regular ELF linker hash table.  */
 392
 393 /* This structure keeps track of the number of PC relative relocs we have
 394    copied for a given symbol.  */
 395
 396 struct elf_vax_pcrel_relocs_copied
 397 {
 398   /* Next section.  */
 399   struct elf_vax_pcrel_relocs_copied *next;
 400   /* A section in dynobj.  */
 401   asection *section;
 402   /* Number of relocs copied in this section.  */
 403   bfd_size_type count;
 404 };
 405
 406 /* VAX ELF linker hash entry.  */
 407
 408 struct elf_vax_link_hash_entry
 409 {
 410   struct elf_link_hash_entry root;
 411
 412   /* Number of PC relative relocs copied for this symbol.  */
 413   struct elf_vax_pcrel_relocs_copied *pcrel_relocs_copied;
 414
 415   bfd_vma got_addend;
 416 };
 417
 418 /* Declare this now that the above structures are defined.  */
 419
 420 static bfd_boolean elf_vax_discard_copies (struct elf_vax_link_hash_entry *,
 421                                            void *);
 422
 423 /* Declare this now that the above structures are defined.  */
 424
 425 static bfd_boolean elf_vax_instantiate_got_entries (struct elf_link_hash_entry *,
 426                                                     void *);
 427
 428 /* Traverse an VAX ELF linker hash table.  */
 429
 430 #define elf_vax_link_hash_traverse(table, func, info)                   \
 431   (elf_link_hash_traverse                                               \
 432    ((table),                                                            \
 433     (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func),    \
 434     (info)))
 435
 436 /* Create an entry in an VAX ELF linker hash table.  */
 437
 438 static struct bfd_hash_entry *
 439 elf_vax_link_hash_newfunc (struct bfd_hash_entry *entry,
 440                            struct bfd_hash_table *table,
 441                            const char *string)
 442 {
 443   struct elf_vax_link_hash_entry *ret =
 444     (struct elf_vax_link_hash_entry *) entry;
 445
 446   /* Allocate the structure if it has not already been allocated by a
 447      subclass.  */
 448   if (ret == NULL)
 449     ret = ((struct elf_vax_link_hash_entry *)
 450            bfd_hash_allocate (table,
 451                               sizeof (struct elf_vax_link_hash_entry)));
 452   if (ret == NULL)
 453     return (struct bfd_hash_entry *) ret;
 454
 455   /* Call the allocation method of the superclass.  */
 456   ret = ((struct elf_vax_link_hash_entry *)
 457          _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
 458                                      table, string));
 459   if (ret != NULL)
 460     {
 461       ret->pcrel_relocs_copied = NULL;
 462     }
 463
 464   return (struct bfd_hash_entry *) ret;
 465 }
 466
 467 /* Create an VAX ELF linker hash table.  */
 468
 469 static struct bfd_link_hash_table *
 470 elf_vax_link_hash_table_create (bfd *abfd)
 471 {
 472   struct elf_link_hash_table *ret;
 473   bfd_size_type amt = sizeof (struct elf_link_hash_table);
 474
 475   ret = bfd_zmalloc (amt);
 476   if (ret == NULL)
 477     return NULL;
 478
 479   if (!_bfd_elf_link_hash_table_init (ret, abfd,
 480                                       elf_vax_link_hash_newfunc,
 481                                       sizeof (struct elf_vax_link_hash_entry),
 482                                       GENERIC_ELF_DATA))
 483     {
 484       free (ret);
 485       return NULL;
 486     }
 487
 488   return &ret->root;
 489 }
 490
 491 /* Keep vax-specific flags in the ELF header */
 492 static bfd_boolean
 493 elf32_vax_set_private_flags (bfd *abfd, flagword flags)
 494 {
 495   elf_elfheader (abfd)->e_flags = flags;
 496   elf_flags_init (abfd) = TRUE;
 497   return TRUE;
 498 }
 499
 500 /* Merge backend specific data from an object file to the output
 501    object file when linking.  */
 502 static bfd_boolean
 503 elf32_vax_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
 504 {
 505   bfd *obfd = info->output_bfd;
 506   flagword in_flags;
 507
 508   if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour
 509       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
 510     return TRUE;
 511
 512   in_flags  = elf_elfheader (ibfd)->e_flags;
 513
 514   if (!elf_flags_init (obfd))
 515     {
 516       elf_flags_init (obfd) = TRUE;
 517       elf_elfheader (obfd)->e_flags = in_flags;
 518     }
 519
 520   return TRUE;
 521 }
 522
 523 /* Display the flags field */
 524 static bfd_boolean
 525 elf32_vax_print_private_bfd_data (bfd *abfd, void * ptr)
 526 {
 527   FILE *file = (FILE *) ptr;
 528
 529   BFD_ASSERT (abfd != NULL && ptr != NULL);
 530
 531   /* Print normal ELF private data.  */
 532   _bfd_elf_print_private_bfd_data (abfd, ptr);
 533
 534   /* Ignore init flag - it may not be set, despite the flags field containing valid data.  */
 535
 536   /* xgettext:c-format */
 537   fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
 538
 539   if (elf_elfheader (abfd)->e_flags & EF_VAX_NONPIC)
 540     fprintf (file, _(" [nonpic]"));
 541
 542   if (elf_elfheader (abfd)->e_flags & EF_VAX_DFLOAT)
 543     fprintf (file, _(" [d-float]"));
 544
 545   if (elf_elfheader (abfd)->e_flags & EF_VAX_GFLOAT)
 546     fprintf (file, _(" [g-float]"));
 547
 548   fputc ('\n', file);
 549
 550   return TRUE;
 551 }
 552 /* Look through the relocs for a section during the first phase, and
 553    allocate space in the global offset table or procedure linkage
 554    table.  */
 555
 556 static bfd_boolean
 557 elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
 558                       const Elf_Internal_Rela *relocs)
 559 {
 560   bfd *dynobj;
 561   Elf_Internal_Shdr *symtab_hdr;
 562   struct elf_link_hash_entry **sym_hashes;
 563   const Elf_Internal_Rela *rel;
 564   const Elf_Internal_Rela *rel_end;
 565   asection *sreloc;
 566
 567   if (bfd_link_relocatable (info))
 568     return TRUE;
 569
 570   dynobj = elf_hash_table (info)->dynobj;
 571   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
 572   sym_hashes = elf_sym_hashes (abfd);
 573
 574   sreloc = NULL;
 575
 576   rel_end = relocs + sec->reloc_count;
 577   for (rel = relocs; rel < rel_end; rel++)
 578     {
 579       unsigned long r_symndx;
 580       struct elf_link_hash_entry *h;
 581
 582       r_symndx = ELF32_R_SYM (rel->r_info);
 583
 584       if (r_symndx < symtab_hdr->sh_info)
 585         h = NULL;
 586       else
 587         {
 588           h = sym_hashes[r_symndx - symtab_hdr->sh_info];
 589           while (h->root.type == bfd_link_hash_indirect
 590                  || h->root.type == bfd_link_hash_warning)
 591             h = (struct elf_link_hash_entry *) h->root.u.i.link;
 592         }
 593
 594       switch (ELF32_R_TYPE (rel->r_info))
 595         {
 596         case R_VAX_GOT32:
 597           BFD_ASSERT (h != NULL);
 598
 599           /* If this is a local symbol, we resolve it directly without
 600              creating a global offset table entry.  */
 601           if (h->forced_local
 602               || h == elf_hash_table (info)->hgot
 603               || h == elf_hash_table (info)->hplt)
 604             break;
 605
 606           /* This symbol requires a global offset table entry.  */
 607
 608           if (dynobj == NULL)
 609             {
 610               /* Create the .got section.  */
 611               elf_hash_table (info)->dynobj = dynobj = abfd;
 612               if (!_bfd_elf_create_got_section (dynobj, info))
 613                 return FALSE;
 614             }
 615
 616           if (h != NULL)
 617             {
 618               struct elf_vax_link_hash_entry *eh;
 619
 620               eh = (struct elf_vax_link_hash_entry *) h;
 621               if (h->got.refcount == -1)
 622                 {
 623                   h->got.refcount = 1;
 624                   eh->got_addend = rel->r_addend;
 625                 }
 626               else
 627                 {
 628                   h->got.refcount++;
 629                   if (eh->got_addend != (bfd_vma) rel->r_addend)
 630                     _bfd_error_handler
 631                       /* xgettext:c-format */
 632                       (_("%pB: warning: GOT addend of %" PRId64 " to `%s' does"
 633                          " not match previous GOT addend of %" PRId64),
 634                          abfd, (int64_t) rel->r_addend, h->root.root.string,
 635                          (int64_t) eh->got_addend);
 636
 637                 }
 638             }
 639           break;
 640
 641         case R_VAX_PLT32:
 642           /* This symbol requires a procedure linkage table entry.  We
 643              actually build the entry in adjust_dynamic_symbol,
 644              because this might be a case of linking PIC code which is
 645              never referenced by a dynamic object, in which case we
 646              don't need to generate a procedure linkage table entry
 647              after all.  */
 648           BFD_ASSERT (h != NULL);
 649
 650           /* If this is a local symbol, we resolve it directly without
 651              creating a procedure linkage table entry.  */
 652           if (h->forced_local)
 653             break;
 654
 655           h->needs_plt = 1;
 656           if (h->plt.refcount == -1)
 657             h->plt.refcount = 1;
 658           else
 659             h->plt.refcount++;
 660           break;
 661
 662         case R_VAX_PC8:
 663         case R_VAX_PC16:
 664         case R_VAX_PC32:
 665           /* If we are creating a shared library and this is not a local
 666              symbol, we need to copy the reloc into the shared library.
 667              However when linking with -Bsymbolic and this is a global
 668              symbol which is defined in an object we are including in the
 669              link (i.e., DEF_REGULAR is set), then we can resolve the
 670              reloc directly.  At this point we have not seen all the input
 671              files, so it is possible that DEF_REGULAR is not set now but
 672              will be set later (it is never cleared).  We account for that
 673              possibility below by storing information in the
 674              pcrel_relocs_copied field of the hash table entry.  */
 675           if (!(bfd_link_pic (info)
 676                 && (sec->flags & SEC_ALLOC) != 0
 677                 && h != NULL
 678                 && (!info->symbolic
 679                     || !h->def_regular)))
 680             {
 681               if (h != NULL
 682                   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
 683                   && !h->forced_local)
 684                 {
 685                   /* Make sure a plt entry is created for this symbol if
 686                      it turns out to be a function defined by a dynamic
 687                      object.  */
 688                   if (h->plt.refcount == -1)
 689                     h->plt.refcount = 1;
 690                   else
 691                     h->plt.refcount++;
 692                 }
 693               break;
 694             }
 695           /* If this is a local symbol, we can resolve it directly.  */
 696           if (h != NULL
 697               && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
 698                   || h->forced_local))
 699             break;
 700
 701           /* Fall through.  */
 702         case R_VAX_8:
 703         case R_VAX_16:
 704         case R_VAX_32:
 705           if (h != NULL && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
 706             {
 707               /* Make sure a plt entry is created for this symbol if it
 708                  turns out to be a function defined by a dynamic object.  */
 709               if (h->plt.refcount == -1)
 710                 h->plt.refcount = 1;
 711               else
 712                 h->plt.refcount++;
 713             }
 714
 715           /* If we are creating a shared library, we need to copy the
 716              reloc into the shared library.  */
 717           if (bfd_link_pic (info)
 718               && (sec->flags & SEC_ALLOC) != 0)
 719             {
 720               /* When creating a shared object, we must copy these
 721                  reloc types into the output file.  We create a reloc
 722                  section in dynobj and make room for this reloc.  */
 723               if (sreloc == NULL)
 724                 {
 725                   sreloc = _bfd_elf_make_dynamic_reloc_section
 726                     (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
 727
 728                   if (sreloc == NULL)
 729                     return FALSE;
 730
 731                   if (sec->flags & SEC_READONLY)
 732                     info->flags |= DF_TEXTREL;
 733                 }
 734
 735               sreloc->size += sizeof (Elf32_External_Rela);
 736
 737               /* If we are linking with -Bsymbolic, we count the number of
 738                  PC relative relocations we have entered for this symbol,
 739                  so that we can discard them again if the symbol is later
 740                  defined by a regular object.  Note that this function is
 741                  only called if we are using a vaxelf linker hash table,
 742                  which means that h is really a pointer to an
 743                  elf_vax_link_hash_entry.  */
 744               if ((ELF32_R_TYPE (rel->r_info) == R_VAX_PC8
 745                    || ELF32_R_TYPE (rel->r_info) == R_VAX_PC16
 746                    || ELF32_R_TYPE (rel->r_info) == R_VAX_PC32)
 747                   && info->symbolic)
 748                 {
 749                   struct elf_vax_link_hash_entry *eh;
 750                   struct elf_vax_pcrel_relocs_copied *p;
 751
 752                   eh = (struct elf_vax_link_hash_entry *) h;
 753
 754                   for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
 755                     if (p->section == sreloc)
 756                       break;
 757
 758                   if (p == NULL)
 759                     {
 760                       p = ((struct elf_vax_pcrel_relocs_copied *)
 761                            bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
 762                       if (p == NULL)
 763                         return FALSE;
 764                       p->next = eh->pcrel_relocs_copied;
 765                       eh->pcrel_relocs_copied = p;
 766                       p->section = sreloc;
 767                       p->count = 0;
 768                     }
 769
 770                   ++p->count;
 771                 }
 772             }
 773
 774           break;
 775
 776           /* This relocation describes the C++ object vtable hierarchy.
 777              Reconstruct it for later use during GC.  */
 778         case R_VAX_GNU_VTINHERIT:
 779           if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
 780             return FALSE;
 781           break;
 782
 783           /* This relocation describes which C++ vtable entries are actually
 784              used.  Record for later use during GC.  */
 785         case R_VAX_GNU_VTENTRY:
 786           if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 787             return FALSE;
 788           break;
 789
 790         default:
 791           break;
 792         }
 793     }
 794
 795   return TRUE;
 796 }
 797
 798 /* Return the section that should be marked against GC for a given
 799    relocation.  */
 800
 801 static asection *
 802 elf_vax_gc_mark_hook (asection *sec,
 803                       struct bfd_link_info *info,
 804                       Elf_Internal_Rela *rel,
 805                       struct elf_link_hash_entry *h,
 806                       Elf_Internal_Sym *sym)
 807 {
 808   if (h != NULL)
 809     switch (ELF32_R_TYPE (rel->r_info))
 810       {
 811       case R_VAX_GNU_VTINHERIT:
 812       case R_VAX_GNU_VTENTRY:
 813         return NULL;
 814       }
 815
 816   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
 817 }
 818
 819 /* Adjust a symbol defined by a dynamic object and referenced by a
 820    regular object.  The current definition is in some section of the
 821    dynamic object, but we're not including those sections.  We have to
 822    change the definition to something the rest of the link can
 823    understand.  */
 824
 825 static bfd_boolean
 826 elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info,
 827                                struct elf_link_hash_entry *h)
 828 {
 829   bfd *dynobj;
 830   asection *s;
 831
 832   dynobj = elf_hash_table (info)->dynobj;
 833
 834   /* Make sure we know what is going on here.  */
 835   BFD_ASSERT (dynobj != NULL
 836               && (h->needs_plt
 837                   || h->is_weakalias
 838                   || (h->def_dynamic
 839                       && h->ref_regular
 840                       && !h->def_regular)));
 841
 842   /* If this is a function, put it in the procedure linkage table.  We
 843      will fill in the contents of the procedure linkage table later,
 844      when we know the address of the .got section.  */
 845   if (h->type == STT_FUNC
 846       || h->needs_plt)
 847     {
 848       if (h->plt.refcount <= 0
 849           || SYMBOL_CALLS_LOCAL (info, h)
 850           || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
 851               && h->root.type == bfd_link_hash_undefweak))
 852         {
 853           /* This case can occur if we saw a PLTxx reloc in an input
 854              file, but the symbol was never referred to by a dynamic
 855              object, or if all references were garbage collected.  In
 856              such a case, we don't actually need to build a procedure
 857              linkage table, and we can just do a PCxx reloc instead.  */
 858           h->plt.offset = (bfd_vma) -1;
 859           h->needs_plt = 0;
 860           return TRUE;
 861         }
 862
 863       s = elf_hash_table (info)->splt;
 864       BFD_ASSERT (s != NULL);
 865
 866       /* If this is the first .plt entry, make room for the special
 867          first entry.  */
 868       if (s->size == 0)
 869         {
 870           s->size += PLT_ENTRY_SIZE;
 871         }
 872
 873       /* If this symbol is not defined in a regular file, and we are
 874          not generating a shared library, then set the symbol to this
 875          location in the .plt.  This is required to make function
 876          pointers compare as equal between the normal executable and
 877          the shared library.  */
 878       if (!bfd_link_pic (info)
 879           && !h->def_regular)
 880         {
 881           h->root.u.def.section = s;
 882           h->root.u.def.value = s->size;
 883         }
 884
 885       h->plt.offset = s->size;
 886
 887       /* Make room for this entry.  */
 888       s->size += PLT_ENTRY_SIZE;
 889
 890       /* We also need to make an entry in the .got.plt section, which
 891          will be placed in the .got section by the linker script.  */
 892
 893       s = elf_hash_table (info)->sgotplt;
 894       BFD_ASSERT (s != NULL);
 895       s->size += 4;
 896
 897       /* We also need to make an entry in the .rela.plt section.  */
 898
 899       s = elf_hash_table (info)->srelplt;
 900       BFD_ASSERT (s != NULL);
 901       s->size += sizeof (Elf32_External_Rela);
 902
 903       return TRUE;
 904     }
 905
 906   /* Reinitialize the plt offset now that it is not used as a reference
 907      count any more.  */
 908   h->plt.offset = (bfd_vma) -1;
 909
 910   /* If this is a weak symbol, and there is a real definition, the
 911      processor independent code will have arranged for us to see the
 912      real definition first, and we can just use the same value.  */
 913   if (h->is_weakalias)
 914     {
 915       struct elf_link_hash_entry *def = weakdef (h);
 916       BFD_ASSERT (def->root.type == bfd_link_hash_defined);
 917       h->root.u.def.section = def->root.u.def.section;
 918       h->root.u.def.value = def->root.u.def.value;
 919       return TRUE;
 920     }
 921
 922   /* This is a reference to a symbol defined by a dynamic object which
 923      is not a function.  */
 924
 925   /* If we are creating a shared library, we must presume that the
 926      only references to the symbol are via the global offset table.
 927      For such cases we need not do anything here; the relocations will
 928      be handled correctly by relocate_section.  */
 929   if (bfd_link_pic (info))
 930     return TRUE;
 931
 932   /* We must allocate the symbol in our .dynbss section, which will
 933      become part of the .bss section of the executable.  There will be
 934      an entry for this symbol in the .dynsym section.  The dynamic
 935      object will contain position independent code, so all references
 936      from the dynamic object to this symbol will go through the global
 937      offset table.  The dynamic linker will use the .dynsym entry to
 938      determine the address it must put in the global offset table, so
 939      both the dynamic object and the regular object will refer to the
 940      same memory location for the variable.  */
 941
 942   s = bfd_get_linker_section (dynobj, ".dynbss");
 943   BFD_ASSERT (s != NULL);
 944
 945   /* We must generate a R_VAX_COPY reloc to tell the dynamic linker to
 946      copy the initial value out of the dynamic object and into the
 947      runtime process image.  We need to remember the offset into the
 948      .rela.bss section we are going to use.  */
 949   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
 950     {
 951       asection *srel;
 952
 953       srel = bfd_get_linker_section (dynobj, ".rela.bss");
 954       BFD_ASSERT (srel != NULL);
 955       srel->size += sizeof (Elf32_External_Rela);
 956       h->needs_copy = 1;
 957     }
 958
 959   return _bfd_elf_adjust_dynamic_copy (info, h, s);
 960 }
 961
 962 /* This function is called via elf_link_hash_traverse.  It resets GOT
 963    and PLT (.GOT) reference counts back to -1 so normal PC32 relocation
 964    will be done.  */
 965
 966 static bfd_boolean
 967 elf_vax_discard_got_entries (struct elf_link_hash_entry *h,
 968                              void *infoptr ATTRIBUTE_UNUSED)
 969 {
 970   h->got.refcount = -1;
 971   h->plt.refcount = -1;
 972
 973   return TRUE;
 974 }
 975
 976 /* Discard unused dynamic data if this is a static link.  */
 977
 978 static bfd_boolean
 979 elf_vax_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
 980                               struct bfd_link_info *info)
 981 {
 982   bfd *dynobj;
 983   asection *s;
 984
 985   dynobj = elf_hash_table (info)->dynobj;
 986
 987   if (dynobj && !elf_hash_table (info)->dynamic_sections_created)
 988     {
 989       /* We may have created entries in the .rela.got and .got sections.
 990          However, if we are not creating the dynamic sections, we will
 991          not actually use these entries.  Reset the size of .rela.got
 992          and .got, which will cause them to get stripped from the output
 993          file below.  */
 994       s = elf_hash_table (info)->srelgot;
 995       if (s != NULL)
 996         s->size = 0;
 997       s = elf_hash_table (info)->sgotplt;
 998       if (s != NULL)
 999         s->size = 0;
1000       s = elf_hash_table (info)->sgot;
1001       if (s != NULL)
1002         s->size = 0;
1003     }
1004
1005   /* If this is a static link, we need to discard all the got entries we've
1006      recorded.  */
1007   if (!dynobj || !elf_hash_table (info)->dynamic_sections_created)
1008     elf_link_hash_traverse (elf_hash_table (info),
1009                             elf_vax_discard_got_entries,
1010                             info);
1011
1012   return TRUE;
1013 }
1014
1015 /* Set the sizes of the dynamic sections.  */
1016
1017 static bfd_boolean
1018 elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
1019 {
1020   bfd *dynobj;
1021   asection *s;
1022   bfd_boolean plt;
1023   bfd_boolean relocs;
1024   bfd_boolean reltext;
1025
1026   dynobj = elf_hash_table (info)->dynobj;
1027   BFD_ASSERT (dynobj != NULL);
1028
1029   if (elf_hash_table (info)->dynamic_sections_created)
1030     {
1031       /* Set the contents of the .interp section to the interpreter.  */
1032       if (bfd_link_executable (info) && !info->nointerp)
1033         {
1034           s = bfd_get_linker_section (dynobj, ".interp");
1035           BFD_ASSERT (s != NULL);
1036           s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1037           s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1038         }
1039     }
1040
1041   /* If this is a -Bsymbolic shared link, then we need to discard all PC
1042      relative relocs against symbols defined in a regular object.  We
1043      allocated space for them in the check_relocs routine, but we will not
1044      fill them in in the relocate_section routine.  */
1045   if (bfd_link_pic (info) && info->symbolic)
1046     elf_vax_link_hash_traverse (elf_hash_table (info),
1047                                 elf_vax_discard_copies,
1048                                 NULL);
1049
1050   /* If this is a -Bsymbolic shared link, we need to discard all the got
1051      entries we've recorded.  Otherwise, we need to instantiate (allocate
1052      space for them).  */
1053   elf_link_hash_traverse (elf_hash_table (info),
1054                           elf_vax_instantiate_got_entries,
1055                           info);
1056
1057   /* The check_relocs and adjust_dynamic_symbol entry points have
1058      determined the sizes of the various dynamic sections.  Allocate
1059      memory for them.  */
1060   plt = FALSE;
1061   relocs = FALSE;
1062   reltext = FALSE;
1063   for (s = dynobj->sections; s != NULL; s = s->next)
1064     {
1065       const char *name;
1066
1067       if ((s->flags & SEC_LINKER_CREATED) == 0)
1068         continue;
1069
1070       /* It's OK to base decisions on the section name, because none
1071          of the dynobj section names depend upon the input files.  */
1072       name = bfd_get_section_name (dynobj, s);
1073
1074       if (strcmp (name, ".plt") == 0)
1075         {
1076           /* Remember whether there is a PLT.  */
1077           plt = s->size != 0;
1078         }
1079       else if (CONST_STRNEQ (name, ".rela"))
1080         {
1081           if (s->size != 0)
1082             {
1083               asection *target;
1084
1085               /* Remember whether there are any reloc sections other
1086                  than .rela.plt.  */
1087               if (strcmp (name, ".rela.plt") != 0)
1088                 {
1089                   const char *outname;
1090
1091                   relocs = TRUE;
1092
1093                   /* If this relocation section applies to a read only
1094                      section, then we probably need a DT_TEXTREL
1095                      entry.  .rela.plt is actually associated with
1096                      .got.plt, which is never readonly.  */
1097                   outname = bfd_get_section_name (output_bfd,
1098                                                   s->output_section);
1099                   target = bfd_get_section_by_name (output_bfd, outname + 5);
1100                   if (target != NULL
1101                       && (target->flags & SEC_READONLY) != 0
1102                       && (target->flags & SEC_ALLOC) != 0)
1103                     reltext = TRUE;
1104                 }
1105
1106               /* We use the reloc_count field as a counter if we need
1107                  to copy relocs into the output file.  */
1108               s->reloc_count = 0;
1109             }
1110         }
1111       else if (! CONST_STRNEQ (name, ".got")
1112                && strcmp (name, ".dynbss") != 0)
1113         {
1114           /* It's not one of our sections, so don't allocate space.  */
1115           continue;
1116         }
1117
1118       if (s->size == 0)
1119         {
1120           /* If we don't need this section, strip it from the
1121              output file.  This is mostly to handle .rela.bss and
1122              .rela.plt.  We must create both sections in
1123              create_dynamic_sections, because they must be created
1124              before the linker maps input sections to output
1125              sections.  The linker does that before
1126              adjust_dynamic_symbol is called, and it is that
1127              function which decides whether anything needs to go
1128              into these sections.  */
1129           s->flags |= SEC_EXCLUDE;
1130           continue;
1131         }
1132
1133       if ((s->flags & SEC_HAS_CONTENTS) == 0)
1134         continue;
1135
1136       /* Allocate memory for the section contents.  */
1137       s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
1138       if (s->contents == NULL)
1139         return FALSE;
1140     }
1141
1142   if (elf_hash_table (info)->dynamic_sections_created)
1143     {
1144       /* Add some entries to the .dynamic section.  We fill in the
1145          values later, in elf_vax_finish_dynamic_sections, but we
1146          must add the entries now so that we get the correct size for
1147          the .dynamic section.  The DT_DEBUG entry is filled in by the
1148          dynamic linker and used by the debugger.  */
1149 #define add_dynamic_entry(TAG, VAL) \
1150   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
1151
1152       if (!bfd_link_pic (info))
1153         {
1154           if (!add_dynamic_entry (DT_DEBUG, 0))
1155             return FALSE;
1156         }
1157
1158       if (plt)
1159         {
1160           if (!add_dynamic_entry (DT_PLTGOT, 0)
1161               || !add_dynamic_entry (DT_PLTRELSZ, 0)
1162               || !add_dynamic_entry (DT_PLTREL, DT_RELA)
1163               || !add_dynamic_entry (DT_JMPREL, 0))
1164             return FALSE;
1165         }
1166
1167       if (relocs)
1168         {
1169           if (!add_dynamic_entry (DT_RELA, 0)
1170               || !add_dynamic_entry (DT_RELASZ, 0)
1171               || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
1172             return FALSE;
1173         }
1174
1175       if (reltext || (info->flags & DF_TEXTREL) != 0)
1176         {
1177           if (!add_dynamic_entry (DT_TEXTREL, 0))
1178             return FALSE;
1179         }
1180     }
1181 #undef add_dynamic_entry
1182
1183   return TRUE;
1184 }
1185
1186 /* This function is called via elf_vax_link_hash_traverse if we are
1187    creating a shared object with -Bsymbolic.  It discards the space
1188    allocated to copy PC relative relocs against symbols which are defined
1189    in regular objects.  We allocated space for them in the check_relocs
1190    routine, but we won't fill them in in the relocate_section routine.  */
1191
1192 static bfd_boolean
1193 elf_vax_discard_copies (struct elf_vax_link_hash_entry *h,
1194                         void * ignore ATTRIBUTE_UNUSED)
1195 {
1196   struct elf_vax_pcrel_relocs_copied *s;
1197
1198   /* We only discard relocs for symbols defined in a regular object.  */
1199   if (!h->root.def_regular)
1200     return TRUE;
1201
1202   for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
1203     s->section->size -= s->count * sizeof (Elf32_External_Rela);
1204
1205   return TRUE;
1206 }
1207
1208 /* This function is called via elf_link_hash_traverse.  It looks for
1209    entries that have GOT or PLT (.GOT) references.  If creating a shared
1210    object with -Bsymbolic, or the symbol has been forced local, then it
1211    resets the reference count back to -1 so normal PC32 relocation will
1212    be done.  Otherwise space in the .got and .rela.got will be reserved
1213    for the symbol.  */
1214
1215 static bfd_boolean
1216 elf_vax_instantiate_got_entries (struct elf_link_hash_entry *h, void * infoptr)
1217 {
1218   struct bfd_link_info *info = (struct bfd_link_info *) infoptr;
1219   bfd *dynobj;
1220   asection *sgot;
1221   asection *srelgot;
1222
1223   /* We don't care about non-GOT (and non-PLT) entries.  */
1224   if (h->got.refcount <= 0 && h->plt.refcount <= 0)
1225     return TRUE;
1226
1227   dynobj = elf_hash_table (info)->dynobj;
1228   BFD_ASSERT (dynobj != NULL);
1229
1230   sgot = elf_hash_table (info)->sgot;
1231   srelgot = elf_hash_table (info)->srelgot;
1232
1233   if (SYMBOL_REFERENCES_LOCAL (info, h))
1234     {
1235       h->got.refcount = -1;
1236       h->plt.refcount = -1;
1237     }
1238   else if (h->got.refcount > 0)
1239     {
1240       /* Make sure this symbol is output as a dynamic symbol.  */
1241       if (h->dynindx == -1)
1242         {
1243           if (!bfd_elf_link_record_dynamic_symbol (info, h))
1244             return FALSE;
1245         }
1246
1247       /* Allocate space in the .got and .rela.got sections.  */
1248       sgot->size += 4;
1249       srelgot->size += sizeof (Elf32_External_Rela);
1250     }
1251
1252   return TRUE;
1253 }
1254
1255 /* Relocate an VAX ELF section.  */
1256
1257 static bfd_boolean
1258 elf_vax_relocate_section (bfd *output_bfd,
1259                           struct bfd_link_info *info,
1260                           bfd *input_bfd,
1261                           asection *input_section,
1262                           bfd_byte *contents,
1263                           Elf_Internal_Rela *relocs,
1264                           Elf_Internal_Sym *local_syms,
1265                           asection **local_sections)
1266 {
1267   Elf_Internal_Shdr *symtab_hdr;
1268   struct elf_link_hash_entry **sym_hashes;
1269   bfd_vma plt_index;
1270   bfd_vma got_offset;
1271   asection *sgot;
1272   asection *splt;
1273   asection *sgotplt;
1274   asection *sreloc;
1275   Elf_Internal_Rela *rel;
1276   Elf_Internal_Rela *relend;
1277
1278   symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1279   sym_hashes = elf_sym_hashes (input_bfd);
1280
1281   sgot = NULL;
1282   splt = NULL;
1283   sgotplt = NULL;
1284   sreloc = NULL;
1285
1286   rel = relocs;
1287   relend = relocs + input_section->reloc_count;
1288   for (; rel < relend; rel++)
1289     {
1290       int r_type;
1291       reloc_howto_type *howto;
1292       unsigned long r_symndx;
1293       struct elf_link_hash_entry *h;
1294       Elf_Internal_Sym *sym;
1295       asection *sec;
1296       bfd_vma relocation;
1297       bfd_reloc_status_type r;
1298
1299       r_type = ELF32_R_TYPE (rel->r_info);
1300       if (r_type < 0 || r_type >= (int) R_VAX_max)
1301         {
1302           bfd_set_error (bfd_error_bad_value);
1303           return FALSE;
1304         }
1305       howto = howto_table + r_type;
1306
1307       r_symndx = ELF32_R_SYM (rel->r_info);
1308       h = NULL;
1309       sym = NULL;
1310       sec = NULL;
1311       if (r_symndx < symtab_hdr->sh_info)
1312         {
1313           sym = local_syms + r_symndx;
1314           sec = local_sections[r_symndx];
1315           relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1316         }
1317       else
1318         {
1319           bfd_boolean unresolved_reloc;
1320           bfd_boolean warned, ignored;
1321
1322           RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1323                                    r_symndx, symtab_hdr, sym_hashes,
1324                                    h, sec, relocation,
1325                                    unresolved_reloc, warned, ignored);
1326
1327           if ((h->root.type == bfd_link_hash_defined
1328               || h->root.type == bfd_link_hash_defweak)
1329               && ((r_type == R_VAX_PLT32
1330                    && h->plt.offset != (bfd_vma) -1
1331                    && !h->forced_local
1332                    && elf_hash_table (info)->dynamic_sections_created)
1333                   || (r_type == R_VAX_GOT32
1334                       && h->got.offset != (bfd_vma) -1
1335                       && !h->forced_local
1336                       && elf_hash_table (info)->dynamic_sections_created
1337                       && (! bfd_link_pic (info)
1338                           || (! info->symbolic && h->dynindx != -1)
1339                           || !h->def_regular))
1340                   || (bfd_link_pic (info)
1341                       && ((! info->symbolic && h->dynindx != -1)
1342                           || !h->def_regular)
1343                       && ((input_section->flags & SEC_ALLOC) != 0
1344                           /* DWARF will emit R_VAX_32 relocations in its
1345                              sections against symbols defined externally
1346                              in shared libraries.  We can't do anything
1347                              with them here.  */
1348
1349                           || ((input_section->flags & SEC_DEBUGGING) != 0
1350                               && h->def_dynamic))
1351                       && (r_type == R_VAX_8
1352                           || r_type == R_VAX_16
1353                           || r_type == R_VAX_32))))
1354             /* In these cases, we don't need the relocation
1355                value.  We check specially because in some
1356                obscure cases sec->output_section will be NULL.  */
1357             relocation = 0;
1358         }
1359
1360       if (sec != NULL && discarded_section (sec))
1361         RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1362                                          rel, 1, relend, howto, 0, contents);
1363
1364       if (bfd_link_relocatable (info))
1365         continue;
1366
1367       switch (r_type)
1368         {
1369         case R_VAX_GOT32:
1370           /* Relocation is to the address of the entry for this symbol
1371              in the global offset table.  */
1372
1373           /* Resolve a GOTxx reloc against a local symbol directly,
1374              without using the global offset table.  */
1375           if (h == NULL
1376               || h->got.offset == (bfd_vma) -1)
1377             break;
1378
1379           {
1380             bfd_vma off;
1381
1382             sgot = elf_hash_table (info)->sgot;
1383             BFD_ASSERT (sgot != NULL);
1384
1385             off = h->got.offset;
1386             BFD_ASSERT (off < sgot->size);
1387
1388             bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off);
1389
1390             relocation = sgot->output_offset + off;
1391             /* The GOT relocation uses the addend.  */
1392             rel->r_addend = 0;
1393
1394             /* Change the reference to be indirect.  */
1395             contents[rel->r_offset - 1] |= 0x10;
1396             relocation += sgot->output_section->vma;
1397           }
1398           break;
1399
1400         case R_VAX_PC32:
1401           /* If we are creating an executable and the function this
1402              reloc refers to is in a shared lib, then we made a PLT
1403              entry for this symbol and need to handle the reloc like
1404              a PLT reloc.  */
1405           if (bfd_link_pic (info))
1406              goto r_vax_pc32_shared;
1407           /* Fall through.  */
1408         case R_VAX_PLT32:
1409           /* Relocation is to the entry for this symbol in the
1410              procedure linkage table.  */
1411
1412           /* Resolve a PLTxx reloc against a local symbol directly,
1413              without using the procedure linkage table.  */
1414           if (h == NULL
1415               || h->plt.offset == (bfd_vma) -1)
1416             break;
1417
1418           splt = elf_hash_table (info)->splt;
1419           BFD_ASSERT (splt != NULL);
1420
1421           sgotplt = elf_hash_table (info)->sgotplt;
1422           BFD_ASSERT (sgotplt != NULL);
1423
1424           plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1425
1426           /* Get the offset into the .got table of the entry that
1427              corresponds to this function.  Each .got entry is 4 bytes.
1428              The first two are reserved.  */
1429           got_offset = (plt_index + 3) * 4;
1430
1431           /* We want the relocation to point into the .got.plt instead
1432              of the plt itself.  */
1433           relocation = (sgotplt->output_section->vma
1434                         + sgotplt->output_offset
1435                         + got_offset);
1436           contents[rel->r_offset-1] |= 0x10; /* make indirect */
1437           if (rel->r_addend == 2)
1438             {
1439               h->plt.offset |= 1;
1440             }
1441           else if (rel->r_addend != 0)
1442             _bfd_error_handler
1443               /* xgettext:c-format */
1444               (_("%pB: warning: PLT addend of %" PRId64 " to `%s'"
1445                  " from %pA section ignored"),
1446                input_bfd, (int64_t) rel->r_addend, h->root.root.string,
1447                input_section);
1448           rel->r_addend = 0;
1449
1450           break;
1451
1452         case R_VAX_PC8:
1453         case R_VAX_PC16:
1454         r_vax_pc32_shared:
1455           if (h == NULL
1456               || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1457               || h->forced_local)
1458             break;
1459           /* Fall through.  */
1460         case R_VAX_8:
1461         case R_VAX_16:
1462         case R_VAX_32:
1463           if (bfd_link_pic (info)
1464               && r_symndx != STN_UNDEF
1465               && (input_section->flags & SEC_ALLOC) != 0
1466               && ((r_type != R_VAX_PC8
1467                    && r_type != R_VAX_PC16
1468                    && r_type != R_VAX_PC32)
1469                   || ((input_section->flags & SEC_CODE)
1470                       && (!info->symbolic
1471                           || (!h->def_regular && h->type != STT_SECTION)))))
1472             {
1473               Elf_Internal_Rela outrel;
1474               bfd_byte *loc;
1475               bfd_boolean skip, relocate;
1476
1477               /* When generating a shared object, these relocations
1478                  are copied into the output file to be resolved at run
1479                  time.  */
1480               if (sreloc == NULL)
1481                 {
1482                   sreloc = _bfd_elf_get_dynamic_reloc_section
1483                     (input_bfd, input_section, /*rela?*/ TRUE);
1484                   if (sreloc == NULL)
1485                     return FALSE;
1486                 }
1487
1488               skip = FALSE;
1489               relocate = FALSE;
1490
1491               outrel.r_offset =
1492                 _bfd_elf_section_offset (output_bfd, info, input_section,
1493                                          rel->r_offset);
1494               if (outrel.r_offset == (bfd_vma) -1)
1495                 skip = TRUE;
1496               if (outrel.r_offset == (bfd_vma) -2)
1497                 skip = TRUE, relocate = TRUE;
1498               outrel.r_offset += (input_section->output_section->vma
1499                                   + input_section->output_offset);
1500
1501               if (skip)
1502                   memset (&outrel, 0, sizeof outrel);
1503               /* h->dynindx may be -1 if the symbol was marked to
1504                  become local.  */
1505               else if (h != NULL
1506                        && ((! info->symbolic && h->dynindx != -1)
1507                            || !h->def_regular))
1508                 {
1509                   BFD_ASSERT (h->dynindx != -1);
1510                   outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1511                   outrel.r_addend = relocation + rel->r_addend;
1512                 }
1513               else
1514                 {
1515                   if (r_type == R_VAX_32)
1516                     {
1517                       relocate = TRUE;
1518                       outrel.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE);
1519                       BFD_ASSERT (bfd_get_signed_32 (input_bfd,
1520                                                      &contents[rel->r_offset]) == 0);
1521                       outrel.r_addend = relocation + rel->r_addend;
1522                     }
1523                   else
1524                     {
1525                       long indx;
1526
1527                       if (bfd_is_abs_section (sec))
1528                         indx = 0;
1529                       else if (sec == NULL || sec->owner == NULL)
1530                         {
1531                           bfd_set_error (bfd_error_bad_value);
1532                           return FALSE;
1533                         }
1534                       else
1535                         {
1536                           asection *osec;
1537
1538                           /* We are turning this relocation into one
1539                              against a section symbol.  It would be
1540                              proper to subtract the symbol's value,
1541                              osec->vma, from the emitted reloc addend,
1542                              but ld.so expects buggy relocs.  */
1543                           osec = sec->output_section;
1544                           indx = elf_section_data (osec)->dynindx;
1545                           if (indx == 0)
1546                             {
1547                               struct elf_link_hash_table *htab;
1548                               htab = elf_hash_table (info);
1549                               osec = htab->text_index_section;
1550                               indx = elf_section_data (osec)->dynindx;
1551                             }
1552                           BFD_ASSERT (indx != 0);
1553                         }
1554
1555                       outrel.r_info = ELF32_R_INFO (indx, r_type);
1556                       outrel.r_addend = relocation + rel->r_addend;
1557                     }
1558                 }
1559
1560               if ((input_section->flags & SEC_CODE) != 0
1561                   || (ELF32_R_TYPE (outrel.r_info) != R_VAX_32
1562                       && ELF32_R_TYPE (outrel.r_info) != R_VAX_RELATIVE
1563                       && ELF32_R_TYPE (outrel.r_info) != R_VAX_COPY
1564                       && ELF32_R_TYPE (outrel.r_info) != R_VAX_JMP_SLOT
1565                       && ELF32_R_TYPE (outrel.r_info) != R_VAX_GLOB_DAT))
1566                 {
1567                   if (h != NULL)
1568                     _bfd_error_handler
1569                       /* xgettext:c-format */
1570                       (_("%pB: warning: %s relocation against symbol `%s'"
1571                          " from %pA section"),
1572                       input_bfd, howto->name, h->root.root.string,
1573                       input_section);
1574                   else
1575                     _bfd_error_handler
1576                       /* xgettext:c-format */
1577                       (_("%pB: warning: %s relocation to %#" PRIx64
1578                          " from %pA section"),
1579                       input_bfd, howto->name, (uint64_t) outrel.r_addend,
1580                       input_section);
1581                 }
1582               loc = sreloc->contents;
1583               loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1584               bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1585
1586               /* This reloc will be computed at runtime, so there's no
1587                  need to do anything now, except for R_VAX_32
1588                  relocations that have been turned into
1589                  R_VAX_RELATIVE.  */
1590               if (!relocate)
1591                 continue;
1592             }
1593
1594           break;
1595
1596         case R_VAX_GNU_VTINHERIT:
1597         case R_VAX_GNU_VTENTRY:
1598           /* These are no-ops in the end.  */
1599           continue;
1600
1601         default:
1602           break;
1603         }
1604
1605       /* VAX PCREL relocations are from the end of relocation, not the start.
1606          So subtract the difference from the relocation amount since we can't
1607          add it to the offset.  */
1608       if (howto->pc_relative && howto->pcrel_offset)
1609         relocation -= bfd_get_reloc_size(howto);
1610
1611       r = _bfd_final_link_relocate (howto, input_bfd, input_section,
1612                                     contents, rel->r_offset,
1613                                     relocation, rel->r_addend);
1614
1615       if (r != bfd_reloc_ok)
1616         {
1617           switch (r)
1618             {
1619             default:
1620             case bfd_reloc_outofrange:
1621               abort ();
1622             case bfd_reloc_overflow:
1623               {
1624                 const char *name;
1625
1626                 if (h != NULL)
1627                   name = NULL;
1628                 else
1629                   {
1630                     name = bfd_elf_string_from_elf_section (input_bfd,
1631                                                             symtab_hdr->sh_link,
1632                                                             sym->st_name);
1633                     if (name == NULL)
1634                       return FALSE;
1635                     if (*name == '\0')
1636                       name = bfd_section_name (input_bfd, sec);
1637                   }
1638                 info->callbacks->reloc_overflow
1639                   (info, (h ? &h->root : NULL), name, howto->name,
1640                    (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1641               }
1642               break;
1643             }
1644         }
1645     }
1646
1647   return TRUE;
1648 }
1649
1650 /* Finish up dynamic symbol handling.  We set the contents of various
1651    dynamic sections here.  */
1652
1653 static bfd_boolean
1654 elf_vax_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
1655                                struct elf_link_hash_entry *h,
1656                                Elf_Internal_Sym *sym)
1657 {
1658   bfd *dynobj;
1659
1660   dynobj = elf_hash_table (info)->dynobj;
1661
1662   if (h->plt.offset != (bfd_vma) -1)
1663     {
1664       asection *splt;
1665       asection *sgot;
1666       asection *srela;
1667       bfd_vma plt_index;
1668       bfd_vma got_offset;
1669       bfd_vma addend;
1670       Elf_Internal_Rela rela;
1671       bfd_byte *loc;
1672
1673       /* This symbol has an entry in the procedure linkage table.  Set
1674          it up.  */
1675       BFD_ASSERT (h->dynindx != -1);
1676
1677       splt = elf_hash_table (info)->splt;
1678       sgot = elf_hash_table (info)->sgotplt;
1679       srela = elf_hash_table (info)->srelplt;
1680       BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1681
1682       addend = 2 * (h->plt.offset & 1);
1683       h->plt.offset &= ~1;
1684
1685       /* Get the index in the procedure linkage table which
1686          corresponds to this symbol.  This is the index of this symbol
1687          in all the symbols for which we are making plt entries.  The
1688          first entry in the procedure linkage table is reserved.  */
1689       plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1690
1691       /* Get the offset into the .got table of the entry that
1692          corresponds to this function.  Each .got entry is 4 bytes.
1693          The first two are reserved.  */
1694       got_offset = (plt_index + 3) * 4;
1695
1696       /* Fill in the entry in the procedure linkage table.  */
1697       memcpy (splt->contents + h->plt.offset, elf_vax_plt_entry,
1698                   PLT_ENTRY_SIZE);
1699
1700       /* The offset is relative to the first extension word.  */
1701       bfd_put_32 (output_bfd,
1702                   -(h->plt.offset + 8),
1703                   splt->contents + h->plt.offset + 4);
1704
1705       bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
1706                   splt->contents + h->plt.offset + 8);
1707
1708       /* Fill in the entry in the global offset table.  */
1709       bfd_put_32 (output_bfd,
1710                   (splt->output_section->vma
1711                    + splt->output_offset
1712                    + h->plt.offset) + addend,
1713                   sgot->contents + got_offset);
1714
1715       /* Fill in the entry in the .rela.plt section.  */
1716       rela.r_offset = (sgot->output_section->vma
1717                        + sgot->output_offset
1718                        + got_offset);
1719       rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_JMP_SLOT);
1720       rela.r_addend = addend;
1721       loc = srela->contents + plt_index * sizeof (Elf32_External_Rela);
1722       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1723
1724       if (!h->def_regular)
1725         {
1726           /* Mark the symbol as undefined, rather than as defined in
1727              the .plt section.  Leave the value alone.  */
1728           sym->st_shndx = SHN_UNDEF;
1729         }
1730     }
1731
1732   if (h->got.offset != (bfd_vma) -1)
1733     {
1734       asection *sgot;
1735       asection *srela;
1736       Elf_Internal_Rela rela;
1737       bfd_byte *loc;
1738
1739       /* This symbol has an entry in the global offset table.  Set it
1740          up.  */
1741       sgot = elf_hash_table (info)->sgot;
1742       srela = elf_hash_table (info)->srelgot;
1743       BFD_ASSERT (sgot != NULL && srela != NULL);
1744
1745       rela.r_offset = (sgot->output_section->vma
1746                        + sgot->output_offset
1747                        + h->got.offset);
1748       rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_GLOB_DAT);
1749       rela.r_addend = bfd_get_signed_32 (output_bfd,
1750                                          sgot->contents + h->got.offset);
1751
1752       loc = srela->contents;
1753       loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
1754       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1755     }
1756
1757   if (h->needs_copy)
1758     {
1759       asection *s;
1760       Elf_Internal_Rela rela;
1761       bfd_byte *loc;
1762
1763       /* This symbol needs a copy reloc.  Set it up.  */
1764       BFD_ASSERT (h->dynindx != -1
1765                   && (h->root.type == bfd_link_hash_defined
1766                       || h->root.type == bfd_link_hash_defweak));
1767
1768       s = bfd_get_linker_section (dynobj, ".rela.bss");
1769       BFD_ASSERT (s != NULL);
1770
1771       rela.r_offset = (h->root.u.def.value
1772                        + h->root.u.def.section->output_section->vma
1773                        + h->root.u.def.section->output_offset);
1774       rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_COPY);
1775       rela.r_addend = 0;
1776       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
1777       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1778     }
1779
1780   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
1781   if (h == elf_hash_table (info)->hdynamic
1782       || h == elf_hash_table (info)->hgot)
1783     sym->st_shndx = SHN_ABS;
1784
1785   return TRUE;
1786 }
1787
1788 /* Finish up the dynamic sections.  */
1789
1790 static bfd_boolean
1791 elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
1792 {
1793   bfd *dynobj;
1794   asection *sgot;
1795   asection *sdyn;
1796
1797   dynobj = elf_hash_table (info)->dynobj;
1798
1799   sgot = elf_hash_table (info)->sgotplt;
1800   BFD_ASSERT (sgot != NULL);
1801   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
1802
1803   if (elf_hash_table (info)->dynamic_sections_created)
1804     {
1805       asection *splt;
1806       Elf32_External_Dyn *dyncon, *dynconend;
1807
1808       splt = elf_hash_table (info)->splt;
1809       BFD_ASSERT (splt != NULL && sdyn != NULL);
1810
1811       dyncon = (Elf32_External_Dyn *) sdyn->contents;
1812       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1813       for (; dyncon < dynconend; dyncon++)
1814         {
1815           Elf_Internal_Dyn dyn;
1816           asection *s;
1817
1818           bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1819
1820           switch (dyn.d_tag)
1821             {
1822             default:
1823               break;
1824
1825             case DT_PLTGOT:
1826               s = elf_hash_table (info)->sgotplt;
1827               goto get_vma;
1828             case DT_JMPREL:
1829               s = elf_hash_table (info)->srelplt;
1830             get_vma:
1831               dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1832               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1833               break;
1834
1835             case DT_PLTRELSZ:
1836               s = elf_hash_table (info)->srelplt;
1837               dyn.d_un.d_val = s->size;
1838               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1839               break;
1840             }
1841         }
1842
1843       /* Fill in the first entry in the procedure linkage table.  */
1844       if (splt->size > 0)
1845         {
1846           memcpy (splt->contents, elf_vax_plt0_entry, PLT_ENTRY_SIZE);
1847           bfd_put_32 (output_bfd,
1848                           (sgot->output_section->vma
1849                            + sgot->output_offset + 4
1850                            - (splt->output_section->vma + 6)),
1851                           splt->contents + 2);
1852           bfd_put_32 (output_bfd,
1853                           (sgot->output_section->vma
1854                            + sgot->output_offset + 8
1855                            - (splt->output_section->vma + 12)),
1856                           splt->contents + 8);
1857           elf_section_data (splt->output_section)->this_hdr.sh_entsize
1858            = PLT_ENTRY_SIZE;
1859         }
1860     }
1861
1862   /* Fill in the first three entries in the global offset table.  */
1863   if (sgot->size > 0)
1864     {
1865       if (sdyn == NULL)
1866         bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1867       else
1868         bfd_put_32 (output_bfd,
1869                     sdyn->output_section->vma + sdyn->output_offset,
1870                     sgot->contents);
1871       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1872       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1873     }
1874
1875   if (elf_section_data (sgot->output_section) != NULL)
1876     elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1877
1878   return TRUE;
1879 }
1880
1881 static enum elf_reloc_type_class
1882 elf_vax_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1883                           const asection *rel_sec ATTRIBUTE_UNUSED,
1884                           const Elf_Internal_Rela *rela)
1885 {
1886   switch ((int) ELF32_R_TYPE (rela->r_info))
1887     {
1888     case R_VAX_RELATIVE:
1889       return reloc_class_relative;
1890     case R_VAX_JMP_SLOT:
1891       return reloc_class_plt;
1892     case R_VAX_COPY:
1893       return reloc_class_copy;
1894     default:
1895       return reloc_class_normal;
1896     }
1897 }
1898
1899 static bfd_vma
1900 elf_vax_plt_sym_val (bfd_vma i, const asection *plt,
1901                      const arelent *rel ATTRIBUTE_UNUSED)
1902 {
1903   return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
1904 }
1905
1906 #define TARGET_LITTLE_SYM               vax_elf32_vec
1907 #define TARGET_LITTLE_NAME              "elf32-vax"
1908 #define ELF_MACHINE_CODE                EM_VAX
1909 #define ELF_MAXPAGESIZE                 0x1000
1910
1911 #define elf_backend_create_dynamic_sections \
1912                                         _bfd_elf_create_dynamic_sections
1913 #define bfd_elf32_bfd_link_hash_table_create \
1914                                         elf_vax_link_hash_table_create
1915 #define bfd_elf32_bfd_final_link        bfd_elf_gc_common_final_link
1916
1917 #define elf_backend_check_relocs        elf_vax_check_relocs
1918 #define elf_backend_adjust_dynamic_symbol \
1919                                         elf_vax_adjust_dynamic_symbol
1920 #define elf_backend_always_size_sections \
1921                                         elf_vax_always_size_sections
1922 #define elf_backend_size_dynamic_sections \
1923                                         elf_vax_size_dynamic_sections
1924 #define elf_backend_init_index_section  _bfd_elf_init_1_index_section
1925 #define elf_backend_relocate_section    elf_vax_relocate_section
1926 #define elf_backend_finish_dynamic_symbol \
1927                                         elf_vax_finish_dynamic_symbol
1928 #define elf_backend_finish_dynamic_sections \
1929                                         elf_vax_finish_dynamic_sections
1930 #define elf_backend_reloc_type_class    elf_vax_reloc_type_class
1931 #define elf_backend_gc_mark_hook        elf_vax_gc_mark_hook
1932 #define elf_backend_plt_sym_val         elf_vax_plt_sym_val
1933 #define bfd_elf32_bfd_merge_private_bfd_data \
1934                                         elf32_vax_merge_private_bfd_data
1935 #define bfd_elf32_bfd_set_private_flags \
1936                                         elf32_vax_set_private_flags
1937 #define bfd_elf32_bfd_print_private_bfd_data \
1938                                         elf32_vax_print_private_bfd_data
1939
1940 #define elf_backend_can_gc_sections     1
1941 #define elf_backend_want_got_plt        1
1942 #define elf_backend_plt_readonly        1
1943 #define elf_backend_want_plt_sym        0
1944 #define elf_backend_got_header_size     16
1945 #define elf_backend_rela_normal         1
1946 #define elf_backend_dtrel_excludes_plt  1
1947
1948 #include "elf32-target.h"