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-rw-r--r--binutils-2.25/bfd/elf32-mcore.c676
1 files changed, 676 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/elf32-mcore.c b/binutils-2.25/bfd/elf32-mcore.c
new file mode 100644
index 00000000..28ee2c49
--- /dev/null
+++ b/binutils-2.25/bfd/elf32-mcore.c
@@ -0,0 +1,676 @@
+/* Motorola MCore specific support for 32-bit ELF
+ Copyright 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2011, 2012 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 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.
+
+ 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. */
+
+
+/* This file is based on a preliminary RCE ELF ABI. The
+ information may not match the final RCE ELF ABI. */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "bfdlink.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+#include "elf/mcore.h"
+#include <assert.h>
+
+/* RELA relocs are used here... */
+
+/* Function to set whether a module needs the -mrelocatable bit set. */
+
+static bfd_boolean
+mcore_elf_set_private_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 bfd_boolean
+mcore_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
+{
+ flagword old_flags;
+ flagword new_flags;
+
+ /* Check if we have the same endianness. */
+ 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 (bfd * abfd,
+ arelent * reloc_entry,
+ asymbol * symbol ATTRIBUTE_UNUSED,
+ void * 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 (_("%B: Relocation %s (%d) is not currently supported.\n"),
+ abfd,
+ reloc_entry->howto->name,
+ reloc_entry->howto->type);
+
+ return bfd_reloc_notsupported;
+}
+
+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 compatibility 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 (void)
+{
+ 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 (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 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];
+};
+
+static reloc_howto_type *
+mcore_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (mcore_elf_howto_raw) / sizeof (mcore_elf_howto_raw[0]);
+ i++)
+ if (mcore_elf_howto_raw[i].name != NULL
+ && strcasecmp (mcore_elf_howto_raw[i].name, r_name) == 0)
+ return &mcore_elf_howto_raw[i];
+
+ return NULL;
+}
+
+/* Set the howto pointer for a RCE ELF reloc. */
+
+static void
+mcore_elf_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED,
+ arelent * cache_ptr,
+ Elf_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)];
+}
+
+/* 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
+ relocatable 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 relocatable 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 bfd_boolean
+mcore_elf_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 = & 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;
+ bfd_boolean ret = TRUE;
+
+#ifdef DEBUG
+ _bfd_error_handler
+ ("mcore_elf_relocate_section called for %B section %A, %ld relocations%s",
+ input_bfd,
+ input_section,
+ (long) input_section->reloc_count,
+ (info->relocatable) ? " (relocatable)" : "");
+#endif
+
+ 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 = NULL;
+ reloc_howto_type * howto;
+ bfd_vma relocation;
+ Elf_Internal_Sym * sym = NULL;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry * h = NULL;
+ 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 (_("%B: Unknown relocation type %d\n"),
+ 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 (_("%B: Relocation %s (%d) is not currently supported.\n"),
+ 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
+ {
+ bfd_boolean unresolved_reloc, warned;
+
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned);
+ }
+
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ if (info->relocatable)
+ 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 = NULL;
+ 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, (h ? &h->root : NULL), 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 (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_MCORE_GNU_VTINHERIT:
+ case R_MCORE_GNU_VTENTRY:
+ return NULL;
+ }
+
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
+}
+
+/* Update the got entry reference counts for the section being removed. */
+
+static bfd_boolean
+mcore_elf_gc_sweep_hook (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 bfd_boolean
+mcore_elf_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 (info->relocatable)
+ 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;
+
+ /* PR15323, ref flags aren't set for references in the same
+ object. */
+ h->root.non_ir_ref = 1;
+ }
+
+ 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_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_MCORE_GNU_VTENTRY:
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+ }
+ }
+
+ return TRUE;
+}
+
+static const struct bfd_elf_special_section mcore_elf_special_sections[]=
+{
+ { STRING_COMMA_LEN (".ctors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".dtors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
+};
+
+#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
+#define bfd_elf32_bfd_reloc_name_lookup mcore_elf_reloc_name_lookup
+#define elf_backend_relocate_section mcore_elf_relocate_section
+#define elf_backend_gc_mark_hook mcore_elf_gc_mark_hook
+#define elf_backend_gc_sweep_hook mcore_elf_gc_sweep_hook
+#define elf_backend_check_relocs mcore_elf_check_relocs
+#define elf_backend_special_sections mcore_elf_special_sections
+
+#define elf_backend_can_gc_sections 1
+#define elf_backend_rela_normal 1
+
+#include "elf32-target.h"