[deliverable/binutils-gdb.git] / bfd / elf32-moxie.c

/* moxie-specific support for 32-bit ELF.
   Copyright 2009, 2010 Free Software Foundation, Inc.

   Copied from elf32-fr30.c which is..
   Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
   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.  */

#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/moxie.h"

/* Forward declarations.  */

static reloc_howto_type moxie_elf_howto_table [] =
{
  /* This reloc does nothing.  */
  HOWTO (R_MOXIE_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_MOXIE_NONE",		/* name */
	 FALSE,			/* partial_inplace */
	 0,			/* src_mask */
	 0,			/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 32 bit absolute relocation.  */
  HOWTO (R_MOXIE_32,		/* 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_MOXIE_32",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0xffffffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 10 bit PC-relative relocation.  */
  HOWTO (R_MOXIE_PCREL10,	/* type.  */
	 1,			/* rightshift.  */
	 1,			/* size (0 = byte, 1 = short, 2 = long).  */
	 10,			/* bitsize.  */
	 TRUE,			/* pc_relative.  */
	 0,			/* bitpos.  */
	 complain_overflow_signed, /* complain_on_overflow.  */
	 bfd_elf_generic_reloc,	/* special_function.  */
	 "R_MOXIE_PCREL10",		/* name.  */
	 FALSE,			/* partial_inplace.  */
	 0,			/* src_mask.  */
	 0x000003FF,		/* dst_mask.  */
	 TRUE),			/* pcrel_offset.  */
};
\f
/* Map BFD reloc types to MOXIE ELF reloc types.  */

struct moxie_reloc_map
{
  bfd_reloc_code_real_type bfd_reloc_val;
  unsigned int moxie_reloc_val;
};

static const struct moxie_reloc_map moxie_reloc_map [] =
{
  { BFD_RELOC_NONE,            R_MOXIE_NONE },
  { BFD_RELOC_32,              R_MOXIE_32 },
  { BFD_RELOC_MOXIE_10_PCREL,  R_MOXIE_PCREL10 },
};

static reloc_howto_type *
moxie_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
			 bfd_reloc_code_real_type code)
{
  unsigned int i;

  for (i = sizeof (moxie_reloc_map) / sizeof (moxie_reloc_map[0]);
       --i;)
    if (moxie_reloc_map [i].bfd_reloc_val == code)
      return & moxie_elf_howto_table [moxie_reloc_map[i].moxie_reloc_val];

  return NULL;
}

static reloc_howto_type *
moxie_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
{
  unsigned int i;

  for (i = 0;
       i < sizeof (moxie_elf_howto_table) / sizeof (moxie_elf_howto_table[0]);
       i++)
    if (moxie_elf_howto_table[i].name != NULL
	&& strcasecmp (moxie_elf_howto_table[i].name, r_name) == 0)
      return &moxie_elf_howto_table[i];

  return NULL;
}

/* Set the howto pointer for an MOXIE ELF reloc.  */

static void
moxie_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
			  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_MOXIE_max);
  cache_ptr->howto = & moxie_elf_howto_table [r_type];
}
\f
/* Perform a single relocation.  By default we use the standard BFD
   routines, but a few relocs, we have to do them ourselves.  */

static bfd_reloc_status_type
moxie_final_link_relocate (reloc_howto_type *howto,
			   bfd *input_bfd,
			   asection *input_section,
			   bfd_byte *contents,
			   Elf_Internal_Rela *rel,
			   bfd_vma relocation)
{
  bfd_reloc_status_type r = bfd_reloc_ok;

  switch (howto->type)
    {
    default:
      r = _bfd_final_link_relocate (howto, input_bfd, input_section,
				    contents, rel->r_offset,
				    relocation, rel->r_addend);
    }

  return r;
}
\f
/* Relocate an MOXIE ELF section.

   The RELOCATE_SECTION function is called by the new 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 adjusting 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
moxie_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;
  struct elf_link_hash_entry **sym_hashes;
  Elf_Internal_Rela *rel;
  Elf_Internal_Rela *relend;

  symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (input_bfd);
  relend     = relocs + input_section->reloc_count;

  for (rel = relocs; rel < relend; rel ++)
    {
      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;
      const char *name;
      int r_type;

      r_type = ELF32_R_TYPE (rel->r_info);
      r_symndx = ELF32_R_SYM (rel->r_info);
      howto  = moxie_elf_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 = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);

	  name = bfd_elf_string_from_elf_section
	    (input_bfd, symtab_hdr->sh_link, sym->st_name);
	  name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
	}
      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);

	  name = h->root.root.string;
	}

      if (sec != NULL && elf_discarded_section (sec))
	{
	  /* For relocs against symbols from removed linkonce sections,
	     or sections discarded by a linker script, we just want the
	     section contents zeroed.  Avoid any special processing.  */
	  _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
	  rel->r_info = 0;
	  rel->r_addend = 0;
	  continue;
	}

      if (info->relocatable)
	continue;

      r = moxie_final_link_relocate (howto, input_bfd, input_section,
				     contents, rel, relocation);

      if (r != bfd_reloc_ok)
	{
	  const char * msg = NULL;

	  switch (r)
	    {
	    case bfd_reloc_overflow:
	      r = 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:
	      r = 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");
	      break;

	    case bfd_reloc_notsupported:
	      msg = _("internal error: unsupported relocation error");
	      break;

	    case bfd_reloc_dangerous:
	      msg = _("internal error: dangerous relocation");
	      break;

	    default:
	      msg = _("internal error: unknown error");
	      break;
	    }

	  if (msg)
	    r = info->callbacks->warning
	      (info, msg, name, input_bfd, input_section, rel->r_offset);

	  if (! r)
	    return FALSE;
	}
    }

  return TRUE;
}
\f
/* Return the section that should be marked against GC for a given
   relocation.  */

static asection *
moxie_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)
{
  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
moxie_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;
	}
    }

  return TRUE;
}
\f
#define ELF_ARCH		bfd_arch_moxie
#define ELF_MACHINE_CODE	EM_MOXIE
#define ELF_MAXPAGESIZE		0x1

#define TARGET_BIG_SYM          bfd_elf32_moxie_vec
#define TARGET_BIG_NAME		"elf32-moxie"

#define elf_info_to_howto_rel			NULL
#define elf_info_to_howto			moxie_info_to_howto_rela
#define elf_backend_relocate_section		moxie_elf_relocate_section
#define elf_backend_gc_mark_hook		moxie_elf_gc_mark_hook
#define elf_backend_check_relocs                moxie_elf_check_relocs

#define elf_backend_can_gc_sections		1
#define elf_backend_rela_normal			1

#define bfd_elf32_bfd_reloc_type_lookup		moxie_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup		moxie_reloc_name_lookup

#include "elf32-target.h"
Commit	Line	Data
20135e4c	1	/* moxie-specific support for 32-bit ELF.
c7e2358a	2	Copyright 2009, 2010 Free Software Foundation, Inc.
20135e4c NC	3
	4	Copied from elf32-fr30.c which is..
	5	Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
	6	Free Software Foundation, Inc.
	7
	8	This file is part of BFD, the Binary File Descriptor library.
	9
	10	This program is free software; you can redistribute it and/or modify
	11	it under the terms of the GNU General Public License as published by
	12	the Free Software Foundation; either version 3 of the License, or
	13	(at your option) any later version.
	14
	15	This program is distributed in the hope that it will be useful,
	16	but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	GNU General Public License for more details.
	19
	20	You should have received a copy of the GNU General Public License
	21	along with this program; if not, write to the Free Software
	22	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	23	MA 02110-1301, USA. */
	24
	25	#include "sysdep.h"
	26	#include "bfd.h"
	27	#include "libbfd.h"
	28	#include "elf-bfd.h"
	29	#include "elf/moxie.h"
	30
	31	/* Forward declarations. */
	32
	33	static reloc_howto_type moxie_elf_howto_table [] =
	34	{
	35	/* This reloc does nothing. */
	36	HOWTO (R_MOXIE_NONE, /* type */
	37	0, /* rightshift */
	38	2, /* size (0 = byte, 1 = short, 2 = long) */
	39	32, /* bitsize */
	40	FALSE, /* pc_relative */
	41	0, /* bitpos */
	42	complain_overflow_bitfield, /* complain_on_overflow */
	43	bfd_elf_generic_reloc, /* special_function */
	44	"R_MOXIE_NONE", /* name */
	45	FALSE, /* partial_inplace */
	46	0, /* src_mask */
	47	0, /* dst_mask */
	48	FALSE), /* pcrel_offset */
	49
	50	/* A 32 bit absolute relocation. */
	51	HOWTO (R_MOXIE_32, /* type */
	52	0, /* rightshift */
	53	2, /* size (0 = byte, 1 = short, 2 = long) */
	54	32, /* bitsize */
	55	FALSE, /* pc_relative */
	56	0, /* bitpos */
	57	complain_overflow_bitfield, /* complain_on_overflow */
	58	bfd_elf_generic_reloc, /* special_function */
	59	"R_MOXIE_32", /* name */
	60	FALSE, /* partial_inplace */
	61	0x00000000, /* src_mask */
	62	0xffffffff, /* dst_mask */
	63	FALSE), /* pcrel_offset */
f865a31d AG	64
	65	/* A 10 bit PC-relative relocation. */
	66	HOWTO (R_MOXIE_PCREL10, /* type. */
	67	1, /* rightshift. */
	68	1, /* size (0 = byte, 1 = short, 2 = long). */
	69	10, /* bitsize. */
	70	TRUE, /* pc_relative. */
	71	0, /* bitpos. */
	72	complain_overflow_signed, /* complain_on_overflow. */
	73	bfd_elf_generic_reloc, /* special_function. */
	74	"R_MOXIE_PCREL10", /* name. */
	75	FALSE, /* partial_inplace. */
	76	0, /* src_mask. */
	77	0x000003FF, /* dst_mask. */
	78	TRUE), /* pcrel_offset. */
20135e4c NC	79	};
	80	\f
	81	/* Map BFD reloc types to MOXIE ELF reloc types. */
	82
	83	struct moxie_reloc_map
	84	{
	85	bfd_reloc_code_real_type bfd_reloc_val;
	86	unsigned int moxie_reloc_val;
	87	};
	88
	89	static const struct moxie_reloc_map moxie_reloc_map [] =
	90	{
f865a31d AG	91	{ BFD_RELOC_NONE, R_MOXIE_NONE },
	92	{ BFD_RELOC_32, R_MOXIE_32 },
	93	{ BFD_RELOC_MOXIE_10_PCREL, R_MOXIE_PCREL10 },
20135e4c NC	94	};
	95
	96	static reloc_howto_type *
	97	moxie_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	98	bfd_reloc_code_real_type code)
	99	{
	100	unsigned int i;
	101
	102	for (i = sizeof (moxie_reloc_map) / sizeof (moxie_reloc_map[0]);
	103	--i;)
	104	if (moxie_reloc_map [i].bfd_reloc_val == code)
	105	return & moxie_elf_howto_table [moxie_reloc_map[i].moxie_reloc_val];
	106
	107	return NULL;
	108	}
	109
	110	static reloc_howto_type *
	111	moxie_reloc_name_lookup (bfd abfd ATTRIBUTE_UNUSED, const char r_name)
	112	{
	113	unsigned int i;
	114
	115	for (i = 0;
	116	i < sizeof (moxie_elf_howto_table) / sizeof (moxie_elf_howto_table[0]);
	117	i++)
	118	if (moxie_elf_howto_table[i].name != NULL
	119	&& strcasecmp (moxie_elf_howto_table[i].name, r_name) == 0)
	120	return &moxie_elf_howto_table[i];
	121
	122	return NULL;
	123	}
	124
	125	/* Set the howto pointer for an MOXIE ELF reloc. */
	126
	127	static void
	128	moxie_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
	129	arelent *cache_ptr,
	130	Elf_Internal_Rela *dst)
	131	{
	132	unsigned int r_type;
	133
	134	r_type = ELF32_R_TYPE (dst->r_info);
	135	BFD_ASSERT (r_type < (unsigned int) R_MOXIE_max);
	136	cache_ptr->howto = & moxie_elf_howto_table [r_type];
	137	}
	138	\f
	139	/* Perform a single relocation. By default we use the standard BFD
	140	routines, but a few relocs, we have to do them ourselves. */
	141
	142	static bfd_reloc_status_type
	143	moxie_final_link_relocate (reloc_howto_type *howto,
	144	bfd *input_bfd,
	145	asection *input_section,
	146	bfd_byte *contents,
	147	Elf_Internal_Rela *rel,
	148	bfd_vma relocation)
	149	{
	150	bfd_reloc_status_type r = bfd_reloc_ok;
	151
	152	switch (howto->type)
	153	{
	154	default:
	155	r = _bfd_final_link_relocate (howto, input_bfd, input_section,
	156	contents, rel->r_offset,
	157	relocation, rel->r_addend);
158	}
159
160	return r;
161	}
162	\f
163	/* Relocate an MOXIE ELF section.
164
165	The RELOCATE_SECTION function is called by the new ELF backend linker
166	to handle the relocations for a section.
167
168	The relocs are always passed as Rela structures; if the section
169	actually uses Rel structures, the r_addend field will always be
170	zero.
171
172	This function is responsible for adjusting the section contents as
173	necessary, and (if using Rela relocs and generating a relocatable
174	output file) adjusting the reloc addend as necessary.
175
176	This function does not have to worry about setting the reloc
177	address or the reloc symbol index.
178
179	LOCAL_SYMS is a pointer to the swapped in local symbols.
180
181	LOCAL_SECTIONS is an array giving the section in the input file
182	corresponding to the st_shndx field of each local symbol.
183
184	The global hash table entry for the global symbols can be found
185	via elf_sym_hashes (input_bfd).
186
187	When generating relocatable output, this function must handle
188	STB_LOCAL/STT_SECTION symbols specially. The output symbol is
189	going to be the section symbol corresponding to the output
190	section, which means that the addend must be adjusted
191	accordingly. */
192
193	static bfd_boolean
194	moxie_elf_relocate_section (bfd *output_bfd,
195	struct bfd_link_info *info,
196	bfd *input_bfd,
197	asection *input_section,
198	bfd_byte *contents,
199	Elf_Internal_Rela *relocs,
200	Elf_Internal_Sym *local_syms,
201	asection **local_sections)
202	{
203	Elf_Internal_Shdr *symtab_hdr;
204	struct elf_link_hash_entry **sym_hashes;
205	Elf_Internal_Rela *rel;
206	Elf_Internal_Rela *relend;
207
208	symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
209	sym_hashes = elf_sym_hashes (input_bfd);
210	relend = relocs + input_section->reloc_count;
211
212	for (rel = relocs; rel < relend; rel ++)
213	{
214	reloc_howto_type *howto;
215	unsigned long r_symndx;
216	Elf_Internal_Sym *sym;
217	asection *sec;
218	struct elf_link_hash_entry *h;
219	bfd_vma relocation;
220	bfd_reloc_status_type r;
221	const char *name;
222	int r_type;
223
224	r_type = ELF32_R_TYPE (rel->r_info);
20135e4c	225	r_symndx = ELF32_R_SYM (rel->r_info);
c7e2358a	226	howto = moxie_elf_howto_table + r_type;
20135e4c NC	227	h = NULL;
	228	sym = NULL;
	229	sec = NULL;
	230
	231	if (r_symndx < symtab_hdr->sh_info)
	232	{
	233	sym = local_syms + r_symndx;
	234	sec = local_sections [r_symndx];
	235	relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
	236
	237	name = bfd_elf_string_from_elf_section
	238	(input_bfd, symtab_hdr->sh_link, sym->st_name);
	239	name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
	240	}
	241	else
	242	{
	243	bfd_boolean unresolved_reloc, warned;
	244
	245	RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
	246	r_symndx, symtab_hdr, sym_hashes,
	247	h, sec, relocation,
	248	unresolved_reloc, warned);
	249
	250	name = h->root.root.string;
	251	}
	252
	253	if (sec != NULL && elf_discarded_section (sec))
	254	{
	255	/* For relocs against symbols from removed linkonce sections,
	256	or sections discarded by a linker script, we just want the
	257	section contents zeroed. Avoid any special processing. */
	258	_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
	259	rel->r_info = 0;
	260	rel->r_addend = 0;
	261	continue;
	262	}
	263
	264	if (info->relocatable)
	265	continue;
	266
	267	r = moxie_final_link_relocate (howto, input_bfd, input_section,
	268	contents, rel, relocation);
	269
	270	if (r != bfd_reloc_ok)
	271	{
	272	const char * msg = NULL;
	273
	274	switch (r)
	275	{
	276	case bfd_reloc_overflow:
	277	r = info->callbacks->reloc_overflow
	278	(info, (h ? &h->root : NULL), name, howto->name,
	279	(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
	280	break;
	281
	282	case bfd_reloc_undefined:
	283	r = info->callbacks->undefined_symbol
	284	(info, name, input_bfd, input_section, rel->r_offset,
	285	TRUE);
	286	break;
	287
	288	case bfd_reloc_outofrange:
	289	msg = _("internal error: out of range error");
	290	break;
291
292	case bfd_reloc_notsupported:
293	msg = _("internal error: unsupported relocation error");
294	break;
295
296	case bfd_reloc_dangerous:
297	msg = _("internal error: dangerous relocation");
298	break;
299
300	default:
301	msg = _("internal error: unknown error");
302	break;
303	}
304
305	if (msg)
306	r = info->callbacks->warning
307	(info, msg, name, input_bfd, input_section, rel->r_offset);
308
309	if (! r)
310	return FALSE;
311	}
312	}
313
314	return TRUE;
315	}
316	\f
317	/* Return the section that should be marked against GC for a given
318	relocation. */
319
320	static asection *
321	moxie_elf_gc_mark_hook (asection *sec,
322	struct bfd_link_info *info,
323	Elf_Internal_Rela *rel,
324	struct elf_link_hash_entry *h,
325	Elf_Internal_Sym *sym)
326	{
327	return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
328	}
329
330	/* Look through the relocs for a section during the first phase.
331	Since we don't do .gots or .plts, we just need to consider the
332	virtual table relocs for gc. */
333
334	static bfd_boolean
335	moxie_elf_check_relocs (bfd *abfd,
336	struct bfd_link_info *info,
337	asection *sec,
338	const Elf_Internal_Rela *relocs)
339	{
340	Elf_Internal_Shdr *symtab_hdr;
341	struct elf_link_hash_entry **sym_hashes;
342	const Elf_Internal_Rela *rel;
343	const Elf_Internal_Rela *rel_end;
344
345	if (info->relocatable)
346	return TRUE;
347
348	symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
349	sym_hashes = elf_sym_hashes (abfd);
350
351	rel_end = relocs + sec->reloc_count;
352	for (rel = relocs; rel < rel_end; rel++)
353	{
354	struct elf_link_hash_entry *h;
355	unsigned long r_symndx;
356
357	r_symndx = ELF32_R_SYM (rel->r_info);
358	if (r_symndx < symtab_hdr->sh_info)
359	h = NULL;
360	else
361	{
362	h = sym_hashes[r_symndx - symtab_hdr->sh_info];
363	while (h->root.type == bfd_link_hash_indirect
364	\|\| h->root.type == bfd_link_hash_warning)
365	h = (struct elf_link_hash_entry *) h->root.u.i.link;
366	}
367	}
368
369	return TRUE;
370	}
371	\f
372	#define ELF_ARCH bfd_arch_moxie
373	#define ELF_MACHINE_CODE EM_MOXIE
374	#define ELF_MAXPAGESIZE 0x1
375
376	#define TARGET_BIG_SYM bfd_elf32_moxie_vec
377	#define TARGET_BIG_NAME "elf32-moxie"
378
379	#define elf_info_to_howto_rel NULL
380	#define elf_info_to_howto moxie_info_to_howto_rela
381	#define elf_backend_relocate_section moxie_elf_relocate_section
382	#define elf_backend_gc_mark_hook moxie_elf_gc_mark_hook
383	#define elf_backend_check_relocs moxie_elf_check_relocs
384
385	#define elf_backend_can_gc_sections 1
386	#define elf_backend_rela_normal 1
387
388	#define bfd_elf32_bfd_reloc_type_lookup moxie_reloc_type_lookup
389	#define bfd_elf32_bfd_reloc_name_lookup moxie_reloc_name_lookup
390
391	#include "elf32-target.h"