bfd/elf32-openrisc.c

   1 /* OpenRISC-specific support for 32-bit ELF.
   2    Copyright 2001, 2002 Free Software Foundation, Inc.
   3    Contributed by Johan Rydberg, jrydberg@opencores.org
   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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24 #include "elf-bfd.h"
  25 #include "elf/openrisc.h"
  26 #include "libiberty.h"
  27
  28 /* Forward declarations.  */
  29
  30 static reloc_howto_type *openrisc_reloc_type_lookup
  31   PARAMS ((bfd * , bfd_reloc_code_real_type));
  32 static void openrisc_info_to_howto_rela
  33   PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
  34 static boolean openrisc_elf_relocate_section
  35   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
  36            Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
  37 static bfd_reloc_status_type openrisc_final_link_relocate
  38   PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
  39            Elf_Internal_Rela *, bfd_vma));
  40 static boolean openrisc_elf_gc_sweep_hook
  41   PARAMS ((bfd *, struct bfd_link_info *, asection *,
  42            const Elf_Internal_Rela *));
  43 static asection * openrisc_elf_gc_mark_hook
  44   PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
  45            struct elf_link_hash_entry *, Elf_Internal_Sym *));
  46 static boolean openrisc_elf_check_relocs
  47   PARAMS ((bfd *, struct bfd_link_info *, asection *,
  48            const Elf_Internal_Rela *));
  49 static boolean openrisc_elf_object_p
  50   PARAMS ((bfd *));
  51 static void openrisc_elf_final_write_processing
  52   PARAMS ((bfd *, boolean));
  53
  54
  55 static reloc_howto_type openrisc_elf_howto_table[] =
  56   {
  57   /* This reloc does nothing.  */
  58   HOWTO (R_OPENRISC_NONE,       /* type */
  59          0,                     /* rightshift */
  60          2,                     /* size (0 = byte, 1 = short, 2 = long) */
  61          32,                    /* bitsize */
  62          false,                 /* pc_relative */
  63          0,                     /* bitpos */
  64          complain_overflow_bitfield, /* complain_on_overflow */
  65          bfd_elf_generic_reloc, /* special_function */
  66          "R_OPENRISC_NONE",     /* name */
  67          false,                 /* partial_inplace */
  68          0,                     /* src_mask */
  69          0,                     /* dst_mask */
  70          false),                /* pcrel_offset */
  71
  72   /* A PC relative 26 bit relocation, right shifted by 2.  */
  73   HOWTO (R_OPENRISC_INSN_REL_26, /* type */
  74          2,                     /* rightshift */
  75          2,                     /* size (0 = byte, 1 = short, 2 = long) */
  76          26,                    /* bitsize */
  77          true,                  /* pc_relative */
  78          0,                     /* bitpos */
  79          complain_overflow_signed, /* complain_on_overflow */
  80          bfd_elf_generic_reloc, /* special_function */
  81          "R_OPENRISC_INSN_REL_26", /* name */
  82          false,                 /* partial_inplace */
  83          0x00000000,            /* src_mask */
  84          0x03ffffff,            /* dst_mask */
  85          false),                /* pcrel_offset */
  86
  87   /* A absolute 26 bit relocation, right shifted by 2.  */
  88   HOWTO (R_OPENRISC_INSN_ABS_26, /* type */
  89          2,                     /* rightshift */
  90          2,                     /* size (0 = byte, 1 = short, 2 = long) */
  91          26,                    /* bitsize */
  92          false,                 /* pc_relative */
  93          0,                     /* bitpos */
  94          complain_overflow_signed, /* complain_on_overflow */
  95          bfd_elf_generic_reloc, /* special_function */
  96          "R_OPENRISC_INSN_ABS_26", /* name */
  97          false,                 /* partial_inplace */
  98          0x00000000,            /* src_mask */
  99          0x03ffffff,            /* dst_mask */
 100          false),                /* pcrel_offset */
 101
 102   HOWTO (R_OPENRISC_LO_16_IN_INSN, /* type */
 103          0,                     /* rightshift */
 104          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 105          16,                    /* bitsize */
 106          false,                 /* pc_relative */
 107          0,                     /* bitpos */
 108          complain_overflow_dont, /* complain_on_overflow */
 109          bfd_elf_generic_reloc, /* special_function */
 110          "R_OPENRISC_LO_16_IN_INSN", /* name */
 111          false,                 /* partial_inplace */
 112          0,                     /* src_mask */
 113          0x0000ffff,            /* dst_mask */
 114          false),                /* pcrel_offset */
 115
 116   HOWTO (R_OPENRISC_HI_16_IN_INSN, /* type */
 117          16,                    /* rightshift */
 118          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 119          16,                    /* bitsize */
 120          false,                 /* pc_relative */
 121          0,                     /* bitpos */
 122          complain_overflow_dont,        /* complain_on_overflow */
 123          bfd_elf_generic_reloc, /* special_function */
 124          "R_OPENRISC_HI_16_IN_INSN",    /* name */
 125          false,                 /* partial_inplace */
 126          0,                     /* src_mask */
 127          0x0000ffff,            /* dst_mask */
 128          false),                /* pcrel_offset */
 129
 130   /* An 8 bit absolute relocation.  */
 131   HOWTO (R_OPENRISC_8,          /* type */
 132          0,                     /* rightshift */
 133          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 134          8,                     /* bitsize */
 135          false,                 /* pc_relative */
 136          0,                     /* bitpos */
 137          complain_overflow_bitfield, /* complain_on_overflow */
 138          bfd_elf_generic_reloc, /* special_function */
 139          "R_OPENRISC_8",        /* name */
 140          true,                  /* partial_inplace */
 141          0x0000,                /* src_mask */
 142          0x00ff,                /* dst_mask */
 143          false),                /* pcrel_offset */
 144
 145   /* A 16 bit absolute relocation.  */
 146   HOWTO (R_OPENRISC_16,         /* type */
 147          0,                     /* rightshift */
 148          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 149          16,                    /* bitsize */
 150          false,                 /* pc_relative */
 151          0,                     /* bitpos */
 152          complain_overflow_bitfield, /* complain_on_overflow */
 153          bfd_elf_generic_reloc, /* special_function */
 154          "R_OPENRISC_16",       /* name */
 155          true,                  /* partial_inplace */
 156          0x00000000,            /* src_mask */
 157          0x0000ffff,            /* dst_mask */
 158          false),                /* pcrel_offset */
 159
 160   /* A 32 bit absolute relocation.  */
 161   HOWTO (R_OPENRISC_32,         /* type */
 162          0,                     /* rightshift */
 163          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 164          32,                    /* bitsize */
 165          false,                 /* pc_relative */
 166          0,                     /* bitpos */
 167          complain_overflow_bitfield, /* complain_on_overflow */
 168          bfd_elf_generic_reloc, /* special_function */
 169          "R_OPENRISC_32",       /* name */
 170          true,                  /* partial_inplace */
 171          0x00000000,            /* src_mask */
 172          0xffffffff,            /* dst_mask */
 173          false),                /* pcrel_offset */
 174
 175   /* GNU extension to record C++ vtable hierarchy */
 176   HOWTO (R_OPENRISC_GNU_VTINHERIT, /* type */
 177          0,                     /* rightshift */
 178          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 179          0,                     /* bitsize */
 180          false,                 /* pc_relative */
 181          0,                     /* bitpos */
 182          complain_overflow_dont, /* complain_on_overflow */
 183          NULL,                  /* special_function */
 184          "R_OPENRISC_GNU_VTINHERIT", /* name */
 185          false,                 /* partial_inplace */
 186          0,                     /* src_mask */
 187          0,                     /* dst_mask */
 188          false),                /* pcrel_offset */
 189
 190   /* GNU extension to record C++ vtable member usage */
 191   HOWTO (R_OPENRISC_GNU_VTENTRY, /* type */
 192          0,                     /* rightshift */
 193          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 194          0,                     /* bitsize */
 195          false,                 /* pc_relative */
 196          0,                     /* bitpos */
 197          complain_overflow_dont, /* complain_on_overflow */
 198          _bfd_elf_rel_vtable_reloc_fn, /* special_function */
 199          "R_OPENRISC_GNU_VTENTRY", /* name */
 200          false,                 /* partial_inplace */
 201          0,                     /* src_mask */
 202          0,                     /* dst_mask */
 203          false),                /* pcrel_offset */
 204 };
 205
 206 /* Map BFD reloc types to OpenRISC ELF reloc types.  */
 207
 208 struct openrisc_reloc_map
 209   {
 210     bfd_reloc_code_real_type bfd_reloc_val;
 211     unsigned int openrisc_reloc_val;
 212   };
 213
 214 static const struct openrisc_reloc_map openrisc_reloc_map[] =
 215   {
 216     { BFD_RELOC_NONE,           R_OPENRISC_NONE },
 217     { BFD_RELOC_32,             R_OPENRISC_32 },
 218     { BFD_RELOC_16,             R_OPENRISC_16 },
 219     { BFD_RELOC_8,              R_OPENRISC_8 },
 220     { BFD_RELOC_OPENRISC_REL_26,R_OPENRISC_INSN_REL_26 },
 221     { BFD_RELOC_OPENRISC_ABS_26,R_OPENRISC_INSN_ABS_26 },
 222     { BFD_RELOC_HI16,           R_OPENRISC_HI_16_IN_INSN },
 223     { BFD_RELOC_LO16,           R_OPENRISC_LO_16_IN_INSN },
 224     { BFD_RELOC_VTABLE_INHERIT, R_OPENRISC_GNU_VTINHERIT },
 225     { BFD_RELOC_VTABLE_ENTRY,   R_OPENRISC_GNU_VTENTRY }
 226   };
 227
 228 static reloc_howto_type *
 229 openrisc_reloc_type_lookup (abfd, code)
 230      bfd * abfd ATTRIBUTE_UNUSED;
 231      bfd_reloc_code_real_type code;
 232 {
 233   unsigned int i;
 234
 235   for (i = ARRAY_SIZE (openrisc_reloc_map); --i;)
 236     if (openrisc_reloc_map[i].bfd_reloc_val == code)
 237       return & openrisc_elf_howto_table[openrisc_reloc_map[i].
 238                                        openrisc_reloc_val];
 239
 240   return NULL;
 241 }
 242
 243 /* Set the howto pointer for an OpenRISC ELF reloc.  */
 244
 245 static void
 246 openrisc_info_to_howto_rela (abfd, cache_ptr, dst)
 247      bfd * abfd ATTRIBUTE_UNUSED;
 248      arelent * cache_ptr;
 249      Elf32_Internal_Rela * dst;
 250 {
 251   unsigned int r_type;
 252
 253   r_type = ELF32_R_TYPE (dst->r_info);
 254   BFD_ASSERT (r_type < (unsigned int) R_OPENRISC_max);
 255   cache_ptr->howto = & openrisc_elf_howto_table[r_type];
 256 }
 257
 258 /* Perform a single relocation.  By default we use the standard BFD
 259    routines, but a few relocs, we have to do them ourselves.  */
 260
 261 static bfd_reloc_status_type
 262 openrisc_final_link_relocate (howto, input_bfd, input_section, contents, rel,
 263                               relocation)
 264      reloc_howto_type *howto;
 265      bfd *input_bfd;
 266      asection *input_section;
 267      bfd_byte *contents;
 268      Elf_Internal_Rela *rel;
 269      bfd_vma relocation;
 270 {
 271   bfd_reloc_status_type r = bfd_reloc_ok;
 272
 273   switch (howto->type)
 274     {
 275     case R_OPENRISC_LO_16_IN_INSN:
 276       relocation &= 0xffff;
 277       r = _bfd_final_link_relocate (howto, input_bfd, input_section,
 278                                     contents, rel->r_offset,
 279                                     relocation, rel->r_addend);
 280       break;
 281
 282     default:
 283       r = _bfd_final_link_relocate (howto, input_bfd, input_section,
 284                                     contents, rel->r_offset,
 285                                     relocation, rel->r_addend);
 286     }
 287
 288   return r;
 289 }
 290
 291 /* Relocate an OpenRISC ELF section.
 292    There is some attempt to make this function usable for many architectures,
 293    both USE_REL and USE_RELA ['twould be nice if such a critter existed],
 294    if only to serve as a learning tool.
 295
 296    The RELOCATE_SECTION function is called by the new ELF backend linker
 297    to handle the relocations for a section.
 298
 299    The relocs are always passed as Rela structures; if the section
 300    actually uses Rel structures, the r_addend field will always be
 301    zero.
 302
 303    This function is responsible for adjusting the section contents as
 304    necessary, and (if using Rela relocs and generating a relocateable
 305    output file) adjusting the reloc addend as necessary.
 306
 307    This function does not have to worry about setting the reloc
 308    address or the reloc symbol index.
 309
 310    LOCAL_SYMS is a pointer to the swapped in local symbols.
 311
 312    LOCAL_SECTIONS is an array giving the section in the input file
 313    corresponding to the st_shndx field of each local symbol.
 314
 315    The global hash table entry for the global symbols can be found
 316    via elf_sym_hashes (input_bfd).
 317
 318    When generating relocateable output, this function must handle
 319    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
 320    going to be the section symbol corresponding to the output
 321    section, which means that the addend must be adjusted
 322    accordingly.  */
 323
 324 static boolean
 325 openrisc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 326                                contents, relocs, local_syms, local_sections)
 327      bfd *output_bfd;
 328      struct bfd_link_info *info;
 329      bfd *input_bfd;
 330      asection *input_section;
 331      bfd_byte *contents;
 332      Elf_Internal_Rela *relocs;
 333      Elf_Internal_Sym *local_syms;
 334      asection **local_sections;
 335 {
 336   Elf_Internal_Shdr *symtab_hdr;
 337   struct elf_link_hash_entry **sym_hashes;
 338   Elf_Internal_Rela *rel;
 339   Elf_Internal_Rela *relend;
 340
 341   if (info->relocateable)
 342     return true;
 343
 344   symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
 345   sym_hashes = elf_sym_hashes (input_bfd);
 346   relend = relocs + input_section->reloc_count;
 347
 348   for (rel = relocs; rel < relend; rel++)
 349     {
 350       reloc_howto_type *howto;
 351       unsigned long r_symndx;
 352       Elf_Internal_Sym *sym;
 353       asection *sec;
 354       struct elf_link_hash_entry *h;
 355       bfd_vma relocation;
 356       bfd_reloc_status_type r;
 357       const char *name = NULL;
 358       int r_type;
 359
 360       r_type = ELF32_R_TYPE (rel->r_info);
 361       r_symndx = ELF32_R_SYM (rel->r_info);
 362
 363       if (r_type == R_OPENRISC_GNU_VTINHERIT
 364           || r_type == R_OPENRISC_GNU_VTENTRY)
 365         continue;
 366
 367       if ((unsigned int) r_type >
 368           (sizeof openrisc_elf_howto_table / sizeof (reloc_howto_type)))
 369         abort ();
 370
 371       /* This is a final link.  */
 372       howto = openrisc_elf_howto_table + ELF32_R_TYPE (rel->r_info);
 373       h = NULL;
 374       sym = NULL;
 375       sec = NULL;
 376
 377       if (r_symndx < symtab_hdr->sh_info)
 378         {
 379           sym = local_syms + r_symndx;
 380           sec = local_sections[r_symndx];
 381           relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
 382
 383           name = bfd_elf_string_from_elf_section
 384             (input_bfd, symtab_hdr->sh_link, sym->st_name);
 385           name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
 386         }
 387       else
 388         {
 389           h = sym_hashes[r_symndx - symtab_hdr->sh_info];
 390
 391           while (h->root.type == bfd_link_hash_indirect
 392                  || h->root.type == bfd_link_hash_warning)
 393             h = (struct elf_link_hash_entry *) h->root.u.i.link;
 394
 395           name = h->root.root.string;
 396
 397           if (h->root.type == bfd_link_hash_defined
 398               || h->root.type == bfd_link_hash_defweak)
 399             {
 400               sec = h->root.u.def.section;
 401               relocation = (h->root.u.def.value
 402                             + sec->output_section->vma + sec->output_offset);
 403             }
 404           else if (h->root.type == bfd_link_hash_undefweak)
 405             {
 406               relocation = 0;
 407             }
 408           else
 409             {
 410               if (!((*info->callbacks->undefined_symbol)
 411                     (info, h->root.root.string, input_bfd,
 412                      input_section, rel->r_offset, true)))
 413                 return false;
 414               relocation = 0;
 415             }
 416         }
 417
 418       r = openrisc_final_link_relocate (howto, input_bfd, input_section,
 419                                         contents, rel, relocation);
 420
 421       if (r != bfd_reloc_ok)
 422         {
 423           const char *msg = (const char *) NULL;
 424
 425           switch (r)
 426             {
 427             case bfd_reloc_overflow:
 428               r = info->callbacks->reloc_overflow
 429                 (info, name, howto->name, (bfd_vma) 0,
 430                  input_bfd, input_section, rel->r_offset);
 431               break;
 432
 433             case bfd_reloc_undefined:
 434               r = info->callbacks->undefined_symbol
 435                 (info, name, input_bfd, input_section, rel->r_offset, true);
 436               break;
 437
 438             case bfd_reloc_outofrange:
 439               msg = _("internal error: out of range error");
 440               break;
 441
 442             case bfd_reloc_notsupported:
 443               msg = _("internal error: unsupported relocation error");
 444               break;
 445
 446             case bfd_reloc_dangerous:
 447               msg = _("internal error: dangerous relocation");
 448               break;
 449
 450             default:
 451               msg = _("internal error: unknown error");
 452               break;
 453             }
 454
 455           if (msg)
 456             r = info->callbacks->warning
 457               (info, msg, name, input_bfd, input_section, rel->r_offset);
 458
 459           if (!r)
 460             return false;
 461         }
 462     }
 463
 464   return true;
 465 }
 466
 467 /* Return the section that should be marked against GC for a given
 468    relocation.  */
 469
 470 static asection *
 471 openrisc_elf_gc_mark_hook (abfd, info, rel, h, sym)
 472      bfd *abfd ATTRIBUTE_UNUSED;
 473      struct bfd_link_info *info ATTRIBUTE_UNUSED;
 474      Elf_Internal_Rela *rel ATTRIBUTE_UNUSED;
 475      struct elf_link_hash_entry *h ATTRIBUTE_UNUSED;
 476      Elf_Internal_Sym *sym ATTRIBUTE_UNUSED;
 477 {
 478   if (h != NULL)
 479     {
 480       switch (ELF32_R_TYPE (rel->r_info))
 481         {
 482         case R_OPENRISC_GNU_VTINHERIT:
 483         case R_OPENRISC_GNU_VTENTRY:
 484           break;
 485
 486         default:
 487           switch (h->root.type)
 488             {
 489             case bfd_link_hash_defined:
 490             case bfd_link_hash_defweak:
 491               return h->root.u.def.section;
 492
 493             case bfd_link_hash_common:
 494               return h->root.u.c.p->section;
 495
 496             default:
 497               break;
 498             }
 499         }
 500     }
 501   else
 502     {
 503       return bfd_section_from_elf_index (abfd, sym->st_shndx);
 504     }
 505
 506   return NULL;
 507 }
 508
 509 /* Update the got entry reference counts for the section being removed.  */
 510
 511 static boolean
 512 openrisc_elf_gc_sweep_hook (abfd, info, sec, relocs)
 513      bfd *abfd ATTRIBUTE_UNUSED;
 514      struct bfd_link_info *info ATTRIBUTE_UNUSED;
 515      asection *sec ATTRIBUTE_UNUSED;
 516      const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
 517 {
 518   return true;
 519 }
 520
 521 /* Look through the relocs for a section during the first phase.
 522    Since we don't do .gots or .plts, we just need to consider the
 523    virtual table relocs for gc.  */
 524
 525 static boolean
 526 openrisc_elf_check_relocs (abfd, info, sec, relocs)
 527      bfd *abfd;
 528      struct bfd_link_info *info;
 529      asection *sec;
 530      const Elf_Internal_Rela *relocs;
 531 {
 532   Elf_Internal_Shdr *symtab_hdr;
 533   struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
 534   const Elf_Internal_Rela *rel;
 535   const Elf_Internal_Rela *rel_end;
 536
 537   if (info->relocateable)
 538     return true;
 539
 540   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
 541   sym_hashes = elf_sym_hashes (abfd);
 542   sym_hashes_end =
 543     sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
 544   if (!elf_bad_symtab (abfd))
 545     sym_hashes_end -= symtab_hdr->sh_info;
 546
 547   rel_end = relocs + sec->reloc_count;
 548   for (rel = relocs; rel < rel_end; rel++)
 549     {
 550       struct elf_link_hash_entry *h;
 551       unsigned long r_symndx;
 552
 553       r_symndx = ELF32_R_SYM (rel->r_info);
 554       if (r_symndx < symtab_hdr->sh_info)
 555         h = NULL;
 556       else
 557         h = sym_hashes[r_symndx - symtab_hdr->sh_info];
 558
 559       switch (ELF32_R_TYPE (rel->r_info))
 560         {
 561           /* This relocation describes the C++ object vtable hierarchy.
 562              Reconstruct it for later use during GC.  */
 563         case R_OPENRISC_GNU_VTINHERIT:
 564           if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
 565             return false;
 566           break;
 567
 568           /* This relocation describes which C++ vtable entries are actually
 569              used.  Record for later use during GC.  */
 570         case R_OPENRISC_GNU_VTENTRY:
 571           if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 572             return false;
 573           break;
 574         }
 575     }
 576
 577   return true;
 578 }
 579
 580 /* Set the right machine number.  */
 581
 582 static boolean
 583 openrisc_elf_object_p (abfd)
 584      bfd *abfd;
 585 {
 586   switch (elf_elfheader (abfd)->e_flags & 0xf)
 587     {
 588     default:
 589       (void) bfd_default_set_arch_mach (abfd, bfd_arch_openrisc, 0);
 590       break;
 591     }
 592   return true;
 593 }
 594
 595 /* Store the machine number in the flags field.  */
 596
 597 static void
 598 openrisc_elf_final_write_processing (abfd, linker)
 599      bfd *abfd;
 600      boolean linker ATTRIBUTE_UNUSED;
 601 {
 602   unsigned long val;
 603
 604   switch (bfd_get_mach (abfd))
 605     {
 606     default:
 607       val = 0;
 608       break;
 609     }
 610
 611   elf_elfheader (abfd)->e_flags &= ~0xf;
 612   elf_elfheader (abfd)->e_flags |= val;
 613 }
 614
 615
 616 #define ELF_ARCH                        bfd_arch_openrisc
 617 #define ELF_MACHINE_CODE                EM_OPENRISC
 618 #define ELF_MACHINE_ALT1                EM_OPENRISC_OLD
 619 #define ELF_MAXPAGESIZE                 0x1000
 620
 621 #define TARGET_BIG_SYM                  bfd_elf32_openrisc_vec
 622 #define TARGET_BIG_NAME                 "elf32-openrisc"
 623
 624 #define elf_info_to_howto_rel           NULL
 625 #define elf_info_to_howto               openrisc_info_to_howto_rela
 626 #define elf_backend_relocate_section    openrisc_elf_relocate_section
 627 #define elf_backend_gc_mark_hook        openrisc_elf_gc_mark_hook
 628 #define elf_backend_gc_sweep_hook       openrisc_elf_gc_sweep_hook
 629 #define elf_backend_check_relocs        openrisc_elf_check_relocs
 630
 631 #define elf_backend_can_gc_sections     1
 632 #define elf_backend_rela_normal         1
 633
 634 #define bfd_elf32_bfd_reloc_type_lookup openrisc_reloc_type_lookup
 635
 636 #define elf_backend_object_p                openrisc_elf_object_p
 637 #define elf_backend_final_write_processing  openrisc_elf_final_write_processing
 638
 639 #include "elf32-target.h"