gdb: add target_ops::supports_displaced_step
[deliverable/binutils-gdb.git] / bfd / elf32-d10v.c
index 01687e88db0a5614dae038f5e49cd320ff998ab6..9f921c907ac993d7f3a2800a9b27dc7bcd03d430 100644 (file)
 /* D10V-specific support for 32-bit ELF
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996-2020 Free Software Foundation, Inc.
    Contributed by Martin Hunt (hunt@cygnus.com).
 
-This file is part of BFD, the Binary File Descriptor library.
+   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 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 3 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.
+   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.  */
+   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., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
-#include "bfd.h"
 #include "sysdep.h"
+#include "bfd.h"
 #include "libbfd.h"
 #include "elf-bfd.h"
-/* #include "elf/d10v.h" */
-
-static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
-  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
-static void d10v_info_to_howto_rel
-  PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
+#include "elf/d10v.h"
 
-
-/* Use REL instead of RELA to save space */
-#define USE_REL
-
-enum reloc_type
-{
-  R_D10V_NONE = 0,
-  R_D10V_10_PCREL_R,
-  R_D10V_10_PCREL_L,
-  R_D10V_16,
-  R_D10V_18,
-  R_D10V_18_PCREL,
-  R_D10V_max
-};
+/* Use REL instead of RELA to save space.  */
+#define USE_REL        1
 
 static reloc_howto_type elf_d10v_howto_table[] =
 {
   /* This reloc does nothing.  */
-  HOWTO (R_D10V_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 */
-        bfd_elf_generic_reloc, /* special_function */
-        "R_D10V_NONE",         /* name */
-        false,                 /* partial_inplace */
-        0,                     /* src_mask */
-        0,                     /* dst_mask */
-        false),                /* pcrel_offset */
-
-  /* An PC Relative 10-bit relocation, shifted by 2  */
-  /* right container */
-  HOWTO (R_D10V_10_PCREL_R,    /* type */
-        2,                     /* rightshift */
-        2,                     /* size (0 = byte, 1 = short, 2 = long) */
-        10,                    /* bitsize */
-        true,                  /* pc_relative */
-        0,                     /* bitpos */
-        complain_overflow_bitfield, /* complain_on_overflow */
-        bfd_elf_generic_reloc, /* special_function */
-        "R_D10V_10_PCREL_R",   /* name */
-        false,                 /* partial_inplace */
-        0xff,                  /* src_mask */
-        0xff,                  /* dst_mask */
-        true),                 /* pcrel_offset */
-
-  /* An PC Relative 10-bit relocation, shifted by 2  */
-  /* left container */
-  HOWTO (R_D10V_10_PCREL_L,    /* type */
-        2,                     /* rightshift */
-        2,                     /* size (0 = byte, 1 = short, 2 = long) */
-        10,                    /* bitsize */
-        true,                  /* pc_relative */
-        15,                    /* bitpos */
-        complain_overflow_bitfield, /* complain_on_overflow */
-        bfd_elf_generic_reloc, /* special_function */
-        "R_D10V_10_PCREL_L",   /* name */
-        false,                 /* partial_inplace */
-        0x07f8000,                     /* src_mask */
-        0x07f8000,             /* dst_mask */
-        true),                 /* pcrel_offset */
-
-  /* A 16 bit absolute relocation */
-  HOWTO (R_D10V_16,            /* type */
-        0,                     /* rightshift */
-        2,                     /* size (0 = byte, 1 = short, 2 = long) */
-        16,                    /* bitsize */
-        false,                 /* pc_relative */
-        0,                     /* bitpos */
-        complain_overflow_bitfield, /* complain_on_overflow */
-        bfd_elf_generic_reloc, /* special_function */
-        "R_D10V_16",           /* name */
-        false,                 /* partial_inplace */
-        0xffff,                /* src_mask */
-        0xffff,                /* dst_mask */
-        false),                /* pcrel_offset */
-
-  /* An 18 bit absolute relocation, right shifted 2 */
-  HOWTO (R_D10V_18,            /* type */
-        2,                     /* rightshift */
-        2,                     /* size (0 = byte, 1 = short, 2 = long) */
-        18,                    /* bitsize */
-        false,                 /* pc_relative */
-        0,                     /* bitpos */
-        complain_overflow_bitfield, /* complain_on_overflow */
-        bfd_elf_generic_reloc, /* special_function */
-        "R_D10V_18",           /* name */
-        false,                 /* partial_inplace */
-        0xffff,                /* src_mask */
-        0xffff,                /* dst_mask */
-        false),                /* pcrel_offset */
-
-  /* A relative 18 bit relocation, right shifted by 2  */
-  HOWTO (R_D10V_18_PCREL,      /* type */
-        2,                     /* rightshift */
-        2,                     /* size (0 = byte, 1 = short, 2 = long) */
-        18,                    /* bitsize */
-        true,                  /* pc_relative */
-        0,                     /* bitpos */
-        complain_overflow_signed, /* complain_on_overflow */
-        bfd_elf_generic_reloc, /* special_function */
-        "R_D10V_18_PCREL",     /* name */
-        false,                 /* partial_inplace */
-        0xffff,                /* src_mask */
-        0xffff,                /* dst_mask */
-        true),                 /* pcrel_offset */
+  HOWTO (R_D10V_NONE,          /* Type.  */
+        0,                     /* Rightshift.  */
+        3,                     /* Size (0 = byte, 1 = short, 2 = long).  */
+        0,                     /* Bitsize.  */
+        FALSE,                 /* PC_relative.  */
+        0,                     /* Bitpos.  */
+        complain_overflow_dont,/* Complain_on_overflow.  */
+        bfd_elf_generic_reloc, /* Special_function.  */
+        "R_D10V_NONE",         /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0,                     /* Src_mask.  */
+        0,                     /* Dst_mask.  */
+        FALSE),                /* PCrel_offset.  */
+
+  /* An PC Relative 10-bit relocation, shifted by 2, right container.  */
+  HOWTO (R_D10V_10_PCREL_R,    /* Type.  */
+        2,                     /* Rightshift.  */
+        2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
+        8,                     /* Bitsize.  */
+        TRUE,                  /* PC_relative.  */
+        0,                     /* Bitpos.  */
+        complain_overflow_signed, /* Complain_on_overflow.  */
+        bfd_elf_generic_reloc, /* Special_function.  */
+        "R_D10V_10_PCREL_R",   /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0xff,                  /* Src_mask.  */
+        0xff,                  /* Dst_mask.  */
+        TRUE),                 /* PCrel_offset.  */
+
+  /* An PC Relative 10-bit relocation, shifted by 2, left container.  */
+  HOWTO (R_D10V_10_PCREL_L,    /* Type.  */
+        2,                     /* Rightshift.  */
+        2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
+        8,                     /* Bitsize.  */
+        TRUE,                  /* PC_relative.  */
+        15,                    /* Bitpos.  */
+        complain_overflow_signed, /* Complain_on_overflow.  */
+        bfd_elf_generic_reloc, /* Special_function.  */
+        "R_D10V_10_PCREL_L",   /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0x07f8000,             /* Src_mask.  */
+        0x07f8000,             /* Dst_mask.  */
+        TRUE),                 /* PCrel_offset.  */
+
+  /* A 16 bit absolute relocation.  */
+  HOWTO (R_D10V_16,            /* Type.  */
+        0,                     /* Rightshift.  */
+        1,                     /* Size (0 = byte, 1 = short, 2 = long).  */
+        16,                    /* Bitsize.  */
+        FALSE,                 /* PC_relative.  */
+        0,                     /* Bitpos.  */
+        complain_overflow_dont,/* Complain_on_overflow.  */
+        bfd_elf_generic_reloc, /* Special_function.  */
+        "R_D10V_16",           /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0xffff,                /* Src_mask.  */
+        0xffff,                /* Dst_mask.  */
+        FALSE),                /* PCrel_offset.  */
+
+  /* An 18 bit absolute relocation, right shifted 2.  */
+  HOWTO (R_D10V_18,            /* Type.  */
+        2,                     /* Rightshift.  */
+        1,                     /* Size (0 = byte, 1 = short, 2 = long).  */
+        16,                    /* Bitsize.  */
+        FALSE,                 /* PC_relative.  */
+        0,                     /* Bitpos.  */
+        complain_overflow_dont, /* Complain_on_overflow.  */
+        bfd_elf_generic_reloc, /* Special_function.  */
+        "R_D10V_18",           /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0xffff,                /* Src_mask.  */
+        0xffff,                /* Dst_mask.  */
+        FALSE),                /* PCrel_offset.  */
 
+  /* A relative 18 bit relocation, right shifted by 2.  */
+  HOWTO (R_D10V_18_PCREL,      /* Type.  */
+        2,                     /* Rightshift.  */
+        2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
+        16,                    /* Bitsize.  */
+        TRUE,                  /* PC_relative.  */
+        0,                     /* Bitpos.  */
+        complain_overflow_signed, /* Complain_on_overflow.  */
+        bfd_elf_generic_reloc, /* Special_function.  */
+        "R_D10V_18_PCREL",     /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0xffff,                /* Src_mask.  */
+        0xffff,                /* Dst_mask.  */
+        TRUE),                 /* PCrel_offset.  */
+
+  /* A 32 bit absolute relocation.  */
+  HOWTO (R_D10V_32,            /* Type.  */
+        0,                     /* Rightshift.  */
+        2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
+        32,                    /* Bitsize.  */
+        FALSE,                 /* PC_relative.  */
+        0,                     /* Bitpos.  */
+        complain_overflow_dont,/* Complain_on_overflow.  */
+        bfd_elf_generic_reloc, /* Special_function.  */
+        "R_D10V_32",           /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0xffffffff,            /* Src_mask.  */
+        0xffffffff,            /* Dst_mask.  */
+        FALSE),                /* PCrel_offset.  */
+
+  /* GNU extension to record C++ vtable hierarchy.  */
+  HOWTO (R_D10V_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_D10V_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_D10V_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_D10V_GNU_VTENTRY",  /* Name.  */
+        FALSE,                 /* Partial_inplace.  */
+        0,                     /* Src_mask.  */
+        0,                     /* Dst_mask.  */
+        FALSE),                /* PCrel_offset.  */
 };
 
 /* Map BFD reloc types to D10V ELF reloc types.  */
 
 struct d10v_reloc_map
 {
-  unsigned char bfd_reloc_val;
+  bfd_reloc_code_real_type bfd_reloc_val;
   unsigned char elf_reloc_val;
 };
 
- static const struct d10v_reloc_map d10v_reloc_map[] =
+static const struct d10v_reloc_map d10v_reloc_map[] =
 {
   { BFD_RELOC_NONE, R_D10V_NONE, },
   { BFD_RELOC_D10V_10_PCREL_R, R_D10V_10_PCREL_R },
@@ -156,51 +182,370 @@ struct d10v_reloc_map
   { BFD_RELOC_16, R_D10V_16 },
   { BFD_RELOC_D10V_18, R_D10V_18 },
   { BFD_RELOC_D10V_18_PCREL, R_D10V_18_PCREL },
+  { BFD_RELOC_32, R_D10V_32 },
+  { BFD_RELOC_VTABLE_INHERIT, R_D10V_GNU_VTINHERIT },
+  { BFD_RELOC_VTABLE_ENTRY, R_D10V_GNU_VTENTRY },
 };
 
 static reloc_howto_type *
-bfd_elf32_bfd_reloc_type_lookup (abfd, code)
-     bfd *abfd;
-     bfd_reloc_code_real_type code;
+bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+                                bfd_reloc_code_real_type code)
 {
   unsigned int i;
 
   for (i = 0;
        i < sizeof (d10v_reloc_map) / sizeof (struct d10v_reloc_map);
        i++)
-    {
-      if (d10v_reloc_map[i].bfd_reloc_val == code)
-       return &elf_d10v_howto_table[d10v_reloc_map[i].elf_reloc_val];
-    }
+    if (d10v_reloc_map[i].bfd_reloc_val == code)
+      return &elf_d10v_howto_table[d10v_reloc_map[i].elf_reloc_val];
+
+  return NULL;
+}
+
+static reloc_howto_type *
+bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+                                const char *r_name)
+{
+  unsigned int i;
+
+  for (i = 0;
+       i < sizeof (elf_d10v_howto_table) / sizeof (elf_d10v_howto_table[0]);
+       i++)
+    if (elf_d10v_howto_table[i].name != NULL
+       && strcasecmp (elf_d10v_howto_table[i].name, r_name) == 0)
+      return &elf_d10v_howto_table[i];
 
   return NULL;
 }
 
 /* Set the howto pointer for an D10V ELF reloc.  */
 
-static void
-d10v_info_to_howto_rel (abfd, cache_ptr, dst)
-     bfd *abfd;
-     arelent *cache_ptr;
-     Elf32_Internal_Rel *dst;
+static bfd_boolean
+d10v_info_to_howto_rel (bfd *abfd,
+                       arelent *cache_ptr,
+                       Elf_Internal_Rela *dst)
 {
   unsigned int r_type;
 
   r_type = ELF32_R_TYPE (dst->r_info);
-  BFD_ASSERT (r_type < (unsigned int) R_D10V_max);
+  if (r_type >= (unsigned int) R_D10V_max)
+    {
+      /* xgettext:c-format */
+      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+                         abfd, r_type);
+      bfd_set_error (bfd_error_bad_value);
+      return FALSE;
+    }
   cache_ptr->howto = &elf_d10v_howto_table[r_type];
+  return TRUE;
+}
+
+static asection *
+elf32_d10v_gc_mark_hook (asection *sec,
+                        struct bfd_link_info *info,
+                        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_D10V_GNU_VTINHERIT:
+      case R_D10V_GNU_VTENTRY:
+       return NULL;
+      }
+
+  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
+}
+
+/* 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 bfd_boolean
+elf32_d10v_check_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;
+  const Elf_Internal_Rela *rel;
+  const Elf_Internal_Rela *rel_end;
+
+  if (bfd_link_relocatable (info))
+    return TRUE;
+
+  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+  sym_hashes = elf_sym_hashes (abfd);
+
+  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];
+         while (h->root.type == bfd_link_hash_indirect
+                || h->root.type == bfd_link_hash_warning)
+           h = (struct elf_link_hash_entry *) h->root.u.i.link;
+       }
+
+      switch (ELF32_R_TYPE (rel->r_info))
+       {
+       /* This relocation describes the C++ object vtable hierarchy.
+          Reconstruct it for later use during GC.  */
+       case R_D10V_GNU_VTINHERIT:
+         if (!bfd_elf_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_D10V_GNU_VTENTRY:
+         if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+           return FALSE;
+         break;
+       }
+    }
+
+  return TRUE;
+}
+
+static bfd_vma
+extract_rel_addend (bfd *abfd,
+                   bfd_byte *where,
+                   reloc_howto_type *howto)
+{
+  bfd_vma insn, val;
+
+  switch (howto->size)
+    {
+    case 0:
+      insn = bfd_get_8 (abfd, where);
+      break;
+    case 1:
+      insn = bfd_get_16 (abfd, where);
+      break;
+    case 2:
+      insn = bfd_get_32 (abfd, where);
+      break;
+    default:
+      abort ();
+    }
+
+  val = (insn & howto->dst_mask) >> howto->bitpos << howto->rightshift;
+  /* We should really be testing for signed addends here, but we don't
+     have that info directly in the howto.  */
+  if (howto->pc_relative)
+    {
+      bfd_vma sign;
+      sign = howto->dst_mask & (~howto->dst_mask >> 1 | ~(-(bfd_vma) 1 >> 1));
+      sign = sign >> howto->bitpos << howto->rightshift;
+      val = (val ^ sign) - sign;
+    }
+  return val;
 }
 
+static void
+insert_rel_addend (bfd *abfd,
+                  bfd_byte *where,
+                  reloc_howto_type *howto,
+                  bfd_vma addend)
+{
+  bfd_vma insn;
+
+  addend = (addend >> howto->rightshift << howto->bitpos) & howto->dst_mask;
+  insn = ~howto->dst_mask;
+  switch (howto->size)
+    {
+    case 0:
+      insn &= bfd_get_8 (abfd, where);
+      insn |= addend;
+      bfd_put_8 (abfd, insn, where);
+      break;
+    case 1:
+      insn &= bfd_get_16 (abfd, where);
+      insn |= addend;
+      bfd_put_16 (abfd, insn, where);
+      break;
+    case 2:
+      insn &= bfd_get_32 (abfd, where);
+      insn |= addend;
+      bfd_put_32 (abfd, insn, where);
+      break;
+    default:
+      abort ();
+    }
+}
+
+/* Relocate a D10V ELF section.  */
+
+static bfd_boolean
+elf32_d10v_relocate_section (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;
+  struct elf_link_hash_entry **sym_hashes;
+  Elf_Internal_Rela *rel, *relend;
+  const char *name;
+
+  symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+  sym_hashes = elf_sym_hashes (input_bfd);
+
+  rel = relocs;
+  relend = relocs + input_section->reloc_count;
+  for (; rel < relend; rel++)
+    {
+      int r_type;
+      reloc_howto_type *howto;
+      unsigned long r_symndx;
+      Elf_Internal_Sym *sym;
+      asection *sec;
+      struct elf_link_hash_entry *h;
+      bfd_vma relocation;
+      bfd_reloc_status_type r;
+
+      r_symndx = ELF32_R_SYM (rel->r_info);
+      r_type = ELF32_R_TYPE (rel->r_info);
+
+      if (r_type == R_D10V_GNU_VTENTRY
+         || r_type == R_D10V_GNU_VTINHERIT)
+       continue;
+
+      howto = elf_d10v_howto_table + r_type;
+      h = NULL;
+      sym = NULL;
+      sec = NULL;
+      if (r_symndx < symtab_hdr->sh_info)
+       {
+         sym = local_syms + r_symndx;
+         sec = local_sections[r_symndx];
+         relocation = (sec->output_section->vma
+                       + sec->output_offset
+                       + sym->st_value);
+         if (ELF_ST_TYPE (sym->st_info) == STT_SECTION
+             && ((sec->flags & SEC_MERGE) != 0
+                 || (bfd_link_relocatable (info)
+                     && sec->output_offset != 0)))
+           {
+             bfd_vma addend;
+             bfd_byte *where = contents + rel->r_offset;
+
+             addend = extract_rel_addend (input_bfd, where, howto);
+
+             if (bfd_link_relocatable (info))
+               addend += sec->output_offset;
+             else
+               {
+                 asection *msec = sec;
+                 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec,
+                                                  addend);
+                 addend -= relocation;
+                 addend += msec->output_section->vma + msec->output_offset;
+               }
+             insert_rel_addend (input_bfd, where, howto, addend);
+           }
+       }
+      else
+       {
+         bfd_boolean unresolved_reloc, warned, ignored;
+
+         RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+                                  r_symndx, symtab_hdr, sym_hashes,
+                                  h, sec, relocation,
+                                  unresolved_reloc, warned, ignored);
+       }
+
+      if (sec != NULL && discarded_section (sec))
+       RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+                                        rel, 1, relend, howto, 0, contents);
+
+      if (bfd_link_relocatable (info))
+       continue;
+
+      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 || *name == '\0')
+           name = bfd_section_name (sec);
+       }
+
+      r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+                                   contents, rel->r_offset,
+                                   relocation, (bfd_vma) 0);
+
+      if (r != bfd_reloc_ok)
+       {
+         const char * msg = (const char *) 0;
+
+         switch (r)
+           {
+           case bfd_reloc_overflow:
+             (*info->callbacks->reloc_overflow)
+               (info, (h ? &h->root : NULL), name, howto->name,
+                (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
+             break;
+
+           case bfd_reloc_undefined:
+             (*info->callbacks->undefined_symbol)
+               (info, name, input_bfd, input_section, rel->r_offset, TRUE);
+             break;
+
+           case bfd_reloc_outofrange:
+             msg = _("internal error: out of range error");
+             goto common_error;
+
+           case bfd_reloc_notsupported:
+             msg = _("internal error: unsupported relocation error");
+             goto common_error;
+
+           case bfd_reloc_dangerous:
+             msg = _("internal error: dangerous error");
+             goto common_error;
+
+           default:
+             msg = _("internal error: unknown error");
+             /* fall through */
+
+           common_error:
+             (*info->callbacks->warning) (info, msg, name, input_bfd,
+                                          input_section, rel->r_offset);
+             break;
+           }
+       }
+    }
+
+  return TRUE;
+}
 #define ELF_ARCH               bfd_arch_d10v
-#define ELF_MACHINE_CODE       EM_CYGNUS_D10V
+#define ELF_MACHINE_CODE       EM_D10V
+#define ELF_MACHINE_ALT1       EM_CYGNUS_D10V
 #define ELF_MAXPAGESIZE                0x1000
 
-#define TARGET_BIG_SYM          bfd_elf32_d10v_vec
+#define TARGET_BIG_SYM         d10v_elf32_vec
 #define TARGET_BIG_NAME                "elf32-d10v"
 
-#define elf_info_to_howto      0
-#define elf_info_to_howto_rel  d10v_info_to_howto_rel
-#define elf_backend_object_p   0
-#define elf_backend_final_write_processing     0
+#define elf_info_to_howto                   NULL
+#define elf_info_to_howto_rel               d10v_info_to_howto_rel
+#define elf_backend_object_p                0
+#define elf_backend_gc_mark_hook            elf32_d10v_gc_mark_hook
+#define elf_backend_check_relocs            elf32_d10v_check_relocs
+#define elf_backend_relocate_section        elf32_d10v_relocate_section
+#define elf_backend_can_gc_sections         1
 
 #include "elf32-target.h"
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