Subversion Repositories or1k

/* Motorola MCore specific support for 32-bit ELF

   Copyright 1994, 1995, 1999, 2000, 2001, 2002

   Free Software Foundation, Inc.

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* This file is based on a preliminary RCE ELF ABI.  The

   information may not match the final RCE ELF ABI.   */

#include "bfd.h"

#include "sysdep.h"

#include "bfdlink.h"

#include "libbfd.h"

#include "elf-bfd.h"

#include "elf/mcore.h"

#include <assert.h>

/* RELA relocs are used here...  */

static void mcore_elf_howto_init

  PARAMS ((void));

static reloc_howto_type * mcore_elf_reloc_type_lookup

  PARAMS ((bfd *, bfd_reloc_code_real_type));

static void mcore_elf_info_to_howto

  PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));

static boolean mcore_elf_set_private_flags

  PARAMS ((bfd *, flagword));

static boolean mcore_elf_merge_private_bfd_data

  PARAMS ((bfd *, bfd *));

static bfd_reloc_status_type mcore_elf_unsupported_reloc

  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));

static boolean mcore_elf_relocate_section

  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,

           Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));

static asection * mcore_elf_gc_mark_hook

  PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,

           struct elf_link_hash_entry *, Elf_Internal_Sym *));

static boolean mcore_elf_gc_sweep_hook

  PARAMS ((bfd *, struct bfd_link_info *, asection *,

           const Elf_Internal_Rela *));

static boolean mcore_elf_check_relocs

  PARAMS ((bfd *, struct bfd_link_info *, asection *,

           const Elf_Internal_Rela *));

static reloc_howto_type * mcore_elf_howto_table [(int) R_MCORE_max];

static reloc_howto_type mcore_elf_howto_raw[] =

{

  /* This reloc does nothing.  */

  HOWTO (R_MCORE_NONE,          /* type */

         0,                      /* rightshift */

         2,                     /* size (0 = byte, 1 = short, 2 = long) */

         32,                    /* bitsize */

         false,                 /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_bitfield,  /* complain_on_overflow */

         NULL,                  /* special_function */

         "R_MCORE_NONE",        /* name */

         false,                 /* partial_inplace */

         0,                      /* src_mask */

         0,                      /* dst_mask */

         false),                /* pcrel_offset */

  /* A standard 32 bit relocation.  */

  HOWTO (R_MCORE_ADDR32,        /* type */

         0,                      /* rightshift */

         2,                     /* size (0 = byte, 1 = short, 2 = long) */

         32,                    /* bitsize */

         false,                 /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_bitfield, /* complain_on_overflow */

         bfd_elf_generic_reloc, /* special_function */

         "ADDR32",              /* name *//* For compatability with coff/pe port.  */

         false,                 /* partial_inplace */

         0x0,                   /* src_mask */

         0xffffffff,            /* dst_mask */

         false),                /* pcrel_offset */

  /* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.

     Should not appear in object files.  */

  HOWTO (R_MCORE_PCRELIMM8BY4,  /* type */

         2,                     /* rightshift */

         1,                     /* size (0 = byte, 1 = short, 2 = long) */

         8,                     /* bitsize */

         true,                  /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_bitfield, /* complain_on_overflow */

         mcore_elf_unsupported_reloc,   /* special_function */

         "R_MCORE_PCRELIMM8BY4",/* name */

         false,                 /* partial_inplace */

         0,                      /* src_mask */

         0,                      /* dst_mask */

         true),                 /* pcrel_offset */

  /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit

     Span 2k instructions == 4k bytes.

     Only useful pieces at the relocated address are the opcode (5 bits) */

  HOWTO (R_MCORE_PCRELIMM11BY2,/* type */

         1,                     /* rightshift */

         1,                     /* size (0 = byte, 1 = short, 2 = long) */

         11,                    /* bitsize */

         true,                  /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_signed, /* complain_on_overflow */

         bfd_elf_generic_reloc, /* special_function */

         "R_MCORE_PCRELIMM11BY2",/* name */

         false,                 /* partial_inplace */

         0x0,                   /* src_mask */

         0x7ff,                 /* dst_mask */

         true),                 /* pcrel_offset */

  /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported.  */

  HOWTO (R_MCORE_PCRELIMM4BY2,  /* type */

         1,                     /* rightshift */

         1,                     /* size (0 = byte, 1 = short, 2 = long) */

         4,                     /* bitsize */

         true,                  /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_bitfield, /* complain_on_overflow */

         mcore_elf_unsupported_reloc,/* special_function */

         "R_MCORE_PCRELIMM4BY2",/* name */

         false,                 /* partial_inplace */

         0,                      /* src_mask */

         0,                      /* dst_mask */

         true),                 /* pcrel_offset */

  /* 32-bit pc-relative. Eventually this will help support PIC code.  */

  HOWTO (R_MCORE_PCREL32,       /* type */

         0,                      /* rightshift */

         2,                     /* size (0 = byte, 1 = short, 2 = long) */

         32,                    /* bitsize */

         true,                  /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_bitfield, /* complain_on_overflow */

         bfd_elf_generic_reloc, /* special_function */

         "R_MCORE_PCREL32",     /* name */

         false,                 /* partial_inplace */

         0x0,                   /* src_mask */

         0xffffffff,            /* dst_mask */

         true),                 /* pcrel_offset */

  /* Like PCRELIMM11BY2, this relocation indicates that there is a

     'jsri' at the specified address. There is a separate relocation

     entry for the literal pool entry that it references, but we

     might be able to change the jsri to a bsr if the target turns out

     to be close enough [even though we won't reclaim the literal pool

     entry, we'll get some runtime efficiency back]. Note that this

     is a relocation that we are allowed to safely ignore.  */

  HOWTO (R_MCORE_PCRELJSR_IMM11BY2,/* type */

         1,                     /* rightshift */

         1,                     /* size (0 = byte, 1 = short, 2 = long) */

         11,                    /* bitsize */

         true,                  /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_signed, /* complain_on_overflow */

         bfd_elf_generic_reloc, /* special_function */

         "R_MCORE_PCRELJSR_IMM11BY2", /* name */

         false,                 /* partial_inplace */

         0x0,                   /* src_mask */

         0x7ff,                 /* dst_mask */

         true),                 /* pcrel_offset */

  /* GNU extension to record C++ vtable hierarchy */

  HOWTO (R_MCORE_GNU_VTINHERIT, /* type */

         0,                     /* rightshift */

         2,                     /* size (0 = byte, 1 = short, 2 = long) */

         0,                     /* bitsize */

         false,                 /* pc_relative */

         0,                     /* bitpos */

         complain_overflow_dont, /* complain_on_overflow */

         NULL,                  /* special_function */

         "R_MCORE_GNU_VTINHERIT", /* name */

         false,                 /* partial_inplace */

         0,                     /* src_mask */

         0,                     /* dst_mask */

         false),                /* pcrel_offset */

  /* GNU extension to record C++ vtable member usage */

  HOWTO (R_MCORE_GNU_VTENTRY,   /* type */

         0,                     /* rightshift */

         2,                     /* size (0 = byte, 1 = short, 2 = long) */

         0,                     /* bitsize */

         false,                 /* pc_relative */

         0,                     /* bitpos */

         complain_overflow_dont,/* complain_on_overflow */

         _bfd_elf_rel_vtable_reloc_fn,  /* special_function */

         "R_MCORE_GNU_VTENTRY", /* name */

         false,                 /* partial_inplace */

         0,                     /* src_mask */

         0,                     /* dst_mask */

         false),                /* pcrel_offset */

  HOWTO (R_MCORE_RELATIVE,      /* type */

         0,                      /* rightshift */

         2,                     /* size (0 = byte, 1 = short, 2 = long) */

         32,                    /* bitsize */

         false,                 /* pc_relative */

         0,                      /* bitpos */

         complain_overflow_signed, /* complain_on_overflow */

         NULL,                  /* special_function */

         "R_MCORE_RELATIVE",    /* name */

         true,                  /* partial_inplace */

         0xffffffff,            /* src_mask */

         0xffffffff,            /* dst_mask */

         false)                 /* pcrel_offset */

};

#ifndef NUM_ELEM

#define NUM_ELEM(a) (sizeof (a) / sizeof (a)[0])

#endif

/* Initialize the mcore_elf_howto_table, so that linear accesses can be done.  */

static void

mcore_elf_howto_init ()

{

  unsigned int i;

  for (i = NUM_ELEM (mcore_elf_howto_raw); i--;)

    {

      unsigned int type;

      type = mcore_elf_howto_raw[i].type;

      BFD_ASSERT (type < NUM_ELEM (mcore_elf_howto_table));

      mcore_elf_howto_table [type] = & mcore_elf_howto_raw [i];

    }

}

static reloc_howto_type *

mcore_elf_reloc_type_lookup (abfd, code)

     bfd * abfd ATTRIBUTE_UNUSED;

     bfd_reloc_code_real_type code;

{

  enum elf_mcore_reloc_type mcore_reloc = R_MCORE_NONE;

  switch (code)

    {

    case BFD_RELOC_NONE:                     mcore_reloc = R_MCORE_NONE; break;

    case BFD_RELOC_32:                       mcore_reloc = R_MCORE_ADDR32; break;

    case BFD_RELOC_MCORE_PCREL_IMM8BY4:      mcore_reloc = R_MCORE_PCRELIMM8BY4; break;

    case BFD_RELOC_MCORE_PCREL_IMM11BY2:     mcore_reloc = R_MCORE_PCRELIMM11BY2; break;

    case BFD_RELOC_MCORE_PCREL_IMM4BY2:      mcore_reloc = R_MCORE_PCRELIMM4BY2; break;

    case BFD_RELOC_32_PCREL:                 mcore_reloc = R_MCORE_PCREL32; break;

    case BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2: mcore_reloc = R_MCORE_PCRELJSR_IMM11BY2; break;

    case BFD_RELOC_VTABLE_INHERIT:           mcore_reloc = R_MCORE_GNU_VTINHERIT; break;

    case BFD_RELOC_VTABLE_ENTRY:             mcore_reloc = R_MCORE_GNU_VTENTRY; break;

    case BFD_RELOC_RVA:                      mcore_reloc = R_MCORE_RELATIVE; break;

    default:

      return (reloc_howto_type *)NULL;

    }

  if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4])   /* Initialize howto table if needed */

    mcore_elf_howto_init ();

  return mcore_elf_howto_table [(int) mcore_reloc];

};

/* Set the howto pointer for a RCE ELF reloc.  */

static void

mcore_elf_info_to_howto (abfd, cache_ptr, dst)

     bfd * abfd ATTRIBUTE_UNUSED;

     arelent * cache_ptr;

     Elf32_Internal_Rela * dst;

{

  if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4])   /* Initialize howto table if needed */

    mcore_elf_howto_init ();

  BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_MCORE_max);

  cache_ptr->howto = mcore_elf_howto_table [ELF32_R_TYPE (dst->r_info)];

}

/* Function to set whether a module needs the -mrelocatable bit set.  */

static boolean

mcore_elf_set_private_flags (abfd, flags)

     bfd * abfd;

     flagword flags;

{

  BFD_ASSERT (! elf_flags_init (abfd)

              || elf_elfheader (abfd)->e_flags == flags);

  elf_elfheader (abfd)->e_flags = flags;

  elf_flags_init (abfd) = true;

  return true;

}

/* Merge backend specific data from an object file to the output

   object file when linking.  */

static boolean

mcore_elf_merge_private_bfd_data (ibfd, obfd)

     bfd * ibfd;

     bfd * obfd;

{

  flagword old_flags;

  flagword new_flags;

  /* Check if we have the same endianess */

  if (! _bfd_generic_verify_endian_match (ibfd, obfd))

    return false;

  if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour

      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)

    return true;

  new_flags = elf_elfheader (ibfd)->e_flags;

  old_flags = elf_elfheader (obfd)->e_flags;

  if (! elf_flags_init (obfd))  /* First call, no flags set */

    {

      elf_flags_init (obfd) = true;

      elf_elfheader (obfd)->e_flags = new_flags;

    }

  else if (new_flags == old_flags)      /* Compatible flags are ok */

    ;

  else

    {

      /* FIXME */

    }

  return true;

}

/* Don't pretend we can deal with unsupported relocs.  */

static bfd_reloc_status_type

mcore_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,

                           output_bfd, error_message)

     bfd * abfd;

     arelent * reloc_entry;

     asymbol * symbol ATTRIBUTE_UNUSED;

     PTR data ATTRIBUTE_UNUSED;

     asection * input_section ATTRIBUTE_UNUSED;

     bfd * output_bfd ATTRIBUTE_UNUSED;

     char ** error_message ATTRIBUTE_UNUSED;

{

  BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);

  _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),

                      bfd_archive_filename (abfd),

                      reloc_entry->howto->name,

                      reloc_entry->howto->type);

  return bfd_reloc_notsupported;

}

/* The RELOCATE_SECTION function is called by the ELF backend linker

   to handle the relocations for a section.

   The relocs are always passed as Rela structures; if the section

   actually uses Rel structures, the r_addend field will always be

   zero.

   This function is responsible for adjust the section contents as

   necessary, and (if using Rela relocs and generating a

   relocateable output file) adjusting the reloc addend as

   necessary.

   This function does not have to worry about setting the reloc

   address or the reloc symbol index.

   LOCAL_SYMS is a pointer to the swapped in local symbols.

   LOCAL_SECTIONS is an array giving the section in the input file

   corresponding to the st_shndx field of each local symbol.

   The global hash table entry for the global symbols can be found

   via elf_sym_hashes (input_bfd).

   When generating relocateable output, this function must handle

   STB_LOCAL/STT_SECTION symbols specially.  The output symbol is

   going to be the section symbol corresponding to the output

   section, which means that the addend must be adjusted

   accordingly.  */

static boolean

mcore_elf_relocate_section (output_bfd, info, input_bfd, input_section,

                          contents, relocs, local_syms, local_sections)

     bfd * output_bfd;

     struct bfd_link_info * info;

     bfd * input_bfd;

     asection * input_section;

     bfd_byte * contents;

     Elf_Internal_Rela * relocs;

     Elf_Internal_Sym * local_syms;

     asection ** local_sections;

{

  Elf_Internal_Shdr *           symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;

  struct elf_link_hash_entry ** sym_hashes = elf_sym_hashes (input_bfd);

  Elf_Internal_Rela *           rel = relocs;

  Elf_Internal_Rela *           relend = relocs + input_section->reloc_count;

  boolean ret = true;

#ifdef DEBUG

  fprintf (stderr,

           "mcore_elf_relocate_section called for %s section %s, %ld relocations%s\n",

           bfd_archive_filename (input_bfd),

           bfd_section_name(input_bfd, input_section),

           (long) input_section->reloc_count,

           (info->relocateable) ? " (relocatable)" : "");

#endif

  if (info->relocateable)

    return true;

  if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4])   /* Initialize howto table if needed */

    mcore_elf_howto_init ();

  for (; rel < relend; rel++)

    {

      enum elf_mcore_reloc_type    r_type = (enum elf_mcore_reloc_type) ELF32_R_TYPE (rel->r_info);

      bfd_vma                      offset = rel->r_offset;

      bfd_vma                      addend = rel->r_addend;

      bfd_reloc_status_type        r = bfd_reloc_other;

      asection *                   sec = (asection *) 0;

      reloc_howto_type *           howto;

      bfd_vma                      relocation;

      Elf_Internal_Sym *           sym = (Elf_Internal_Sym *) 0;

      unsigned long                r_symndx;

      struct elf_link_hash_entry * h = (struct elf_link_hash_entry *) 0;

      unsigned short               oldinst = 0;

      /* Unknown relocation handling */

      if ((unsigned) r_type >= (unsigned) R_MCORE_max

          || ! mcore_elf_howto_table [(int)r_type])

        {

          _bfd_error_handler (_("%s: Unknown relocation type %d\n"),

                              bfd_archive_filename (input_bfd),

                              (int) r_type);

          bfd_set_error (bfd_error_bad_value);

          ret = false;

          continue;

        }

      howto = mcore_elf_howto_table [(int) r_type];

      r_symndx = ELF32_R_SYM (rel->r_info);

      /* Complain about known relocation that are not yet supported.  */

      if (howto->special_function == mcore_elf_unsupported_reloc)

        {

          _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),

                              bfd_archive_filename (input_bfd),

                              howto->name,

                              (int)r_type);

          bfd_set_error (bfd_error_bad_value);

          ret = false;

          continue;

        }

      if (r_symndx < symtab_hdr->sh_info)

        {

          sym = local_syms + r_symndx;

          sec = local_sections [r_symndx];

          relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);

          addend = rel->r_addend;

        }

      else

        {

          h = sym_hashes [r_symndx - symtab_hdr->sh_info];

          if (   h->root.type == bfd_link_hash_defined

              || h->root.type == bfd_link_hash_defweak)

            {

              sec = h->root.u.def.section;

              relocation = (h->root.u.def.value

                            + sec->output_section->vma

                            + sec->output_offset);

            }

          else if (h->root.type == bfd_link_hash_undefweak)

            relocation = 0;

          else if (info->shared

                   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)

            relocation = 0;

          else

            {

              if (! ((*info->callbacks->undefined_symbol)

                        (info, h->root.root.string, input_bfd,

                         input_section, rel->r_offset, true)))

                return false;

              ret = false;

              continue;

            }

        }

      switch (r_type)

        {

        default:

          break;

        case R_MCORE_PCRELJSR_IMM11BY2:

          oldinst = bfd_get_16 (input_bfd, contents + offset);

#define MCORE_INST_BSR  0xF800

          bfd_put_16 (input_bfd, (bfd_vma) MCORE_INST_BSR, contents + offset);

          break;

        }

#ifdef DEBUG

      fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",

               howto->name, r_type, r_symndx, (long) offset, (long) addend);

#endif

      r = _bfd_final_link_relocate

        (howto, input_bfd, input_section, contents, offset, relocation, addend);

      if (r != bfd_reloc_ok && r_type == R_MCORE_PCRELJSR_IMM11BY2)

        {

          /* Wasn't ok, back it out and give up.  */

          bfd_put_16 (input_bfd, (bfd_vma) oldinst, contents + offset);

          r = bfd_reloc_ok;

        }

      if (r != bfd_reloc_ok)

        {

          ret = false;

          switch (r)

            {

            default:

              break;

            case bfd_reloc_overflow:

              {

                const char * name;

                if (h != NULL)

                  name = h->root.root.string;

                else

                  {

                    name = bfd_elf_string_from_elf_section

                      (input_bfd, symtab_hdr->sh_link, sym->st_name);

                    if (name == NULL)

                      break;

                    if (* name == '\0')

                      name = bfd_section_name (input_bfd, sec);

                  }

                (*info->callbacks->reloc_overflow)

                  (info, name, howto->name, (bfd_vma) 0, input_bfd, input_section,

                   offset);

              }

              break;

            }

        }

    }

#ifdef DEBUG

  fprintf (stderr, "\n");

#endif

  return ret;

}

/* Return the section that should be marked against GC for a given

   relocation.  */

static asection *

mcore_elf_gc_mark_hook (sec, info, rel, h, sym)

     asection *                   sec;

     struct bfd_link_info *       info ATTRIBUTE_UNUSED;

     Elf_Internal_Rela *          rel;

     struct elf_link_hash_entry * h;

     Elf_Internal_Sym *           sym;

{

  if (h != NULL)

    {

      switch (ELF32_R_TYPE (rel->r_info))

        {

        case R_MCORE_GNU_VTINHERIT:

        case R_MCORE_GNU_VTENTRY:

          break;

        default:

          switch (h->root.type)

            {

            case bfd_link_hash_defined:

            case bfd_link_hash_defweak:

              return h->root.u.def.section;

            case bfd_link_hash_common:

              return h->root.u.c.p->section;

            default:

              break;

            }

        }

    }

  else

    return bfd_section_from_elf_index (sec->owner, sym->st_shndx);

  return NULL;

}

/* Update the got entry reference counts for the section being removed.  */

static boolean

mcore_elf_gc_sweep_hook (abfd, info, sec, relocs)

     bfd *                     abfd ATTRIBUTE_UNUSED;

     struct bfd_link_info *    info ATTRIBUTE_UNUSED;

     asection *                sec ATTRIBUTE_UNUSED;

     const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;

{

  return true;

}

/* Look through the relocs for a section during the first phase.

   Since we don't do .gots or .plts, we just need to consider the

   virtual table relocs for gc.  */

static boolean

mcore_elf_check_relocs (abfd, info, sec, relocs)

     bfd * abfd;

     struct bfd_link_info * info;

     asection * sec;

     const Elf_Internal_Rela * relocs;

{

  Elf_Internal_Shdr *           symtab_hdr;

  struct elf_link_hash_entry ** sym_hashes;

  struct elf_link_hash_entry ** sym_hashes_end;

  const Elf_Internal_Rela *     rel;

  const Elf_Internal_Rela *     rel_end;

  if (info->relocateable)

    return true;

  symtab_hdr = & elf_tdata (abfd)->symtab_hdr;

  sym_hashes = elf_sym_hashes (abfd);

  sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);

  if (!elf_bad_symtab (abfd))

    sym_hashes_end -= symtab_hdr->sh_info;

  rel_end = relocs + sec->reloc_count;

  for (rel = relocs; rel < rel_end; rel++)

    {

      struct elf_link_hash_entry * h;

      unsigned long r_symndx;

      r_symndx = ELF32_R_SYM (rel->r_info);

      if (r_symndx < symtab_hdr->sh_info)

        h = NULL;

      else

        h = sym_hashes [r_symndx - symtab_hdr->sh_info];

      switch (ELF32_R_TYPE (rel->r_info))

        {

        /* This relocation describes the C++ object vtable hierarchy.

           Reconstruct it for later use during GC.  */

        case R_MCORE_GNU_VTINHERIT:

          if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))

            return false;

          break;

        /* This relocation describes which C++ vtable entries are actually

           used.  Record for later use during GC.  */

        case R_MCORE_GNU_VTENTRY:

          if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))

            return false;

          break;

        }

    }

  return true;

}

#define TARGET_BIG_SYM          bfd_elf32_mcore_big_vec

#define TARGET_BIG_NAME         "elf32-mcore-big"

#define TARGET_LITTLE_SYM       bfd_elf32_mcore_little_vec

#define TARGET_LITTLE_NAME      "elf32-mcore-little"

#define ELF_ARCH                bfd_arch_mcore

#define ELF_MACHINE_CODE        EM_MCORE

#define ELF_MAXPAGESIZE         0x1000          /* 4k, if we ever have 'em */

#define elf_info_to_howto       mcore_elf_info_to_howto

#define elf_info_to_howto_rel   NULL

#define bfd_elf32_bfd_merge_private_bfd_data    mcore_elf_merge_private_bfd_data

#define bfd_elf32_bfd_set_private_flags         mcore_elf_set_private_flags

#define bfd_elf32_bfd_reloc_type_lookup         mcore_elf_reloc_type_lookup