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

/* moxie-specific support for 32-bit ELF.
   Copyright (C) 2009-2018 Free Software Foundation, Inc.

   Copied from elf32-fr30.c which is..
   Copyright (C) 1998-2018 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 */
	 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_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);
  if (r_type >= (unsigned int) R_MOXIE_max)
    {
      /* xgettext:c-format */
      _bfd_error_handler (_("%pB: invalid Moxie reloc number: %d"), abfd, r_type);
      r_type = 0;
    }
  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, ignored;

	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
				   r_symndx, symtab_hdr, sym_hashes,
				   h, sec, relocation,
				   unresolved_reloc, warned, ignored);

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

      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;

      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:
	      (*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");
	      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)
	    (*info->callbacks->warning) (info, msg, name, input_bfd,
					 input_section, rel->r_offset);
	}
    }

  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 (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;
	}
    }

  return TRUE;
}
\f
#define ELF_ARCH		bfd_arch_moxie
#define ELF_MACHINE_CODE	EM_MOXIE
#define ELF_MACHINE_ALT1	EM_MOXIE_OLD
#define ELF_MAXPAGESIZE		0x1

#define TARGET_BIG_SYM		moxie_elf32_be_vec
#define TARGET_BIG_NAME		"elf32-bigmoxie"
#define TARGET_LITTLE_SYM	moxie_elf32_le_vec
#define TARGET_LITTLE_NAME	"elf32-littlemoxie"

#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.
219d1afa	2	Copyright (C) 2009-2018 Free Software Foundation, Inc.
20135e4c NC	3
20135e4c NC	4	Copied from elf32-fr30.c which is..
219d1afa	5	Copyright (C) 1998-2018 Free Software Foundation, Inc.
20135e4c NC	6
	7	This file is part of BFD, the Binary File Descriptor library.
	8
	9	This program is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 3 of the License, or
	12	(at your option) any later version.
	13
	14	This program is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with this program; if not, write to the Free Software
	21	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	22	MA 02110-1301, USA. */
	23
	24	#include "sysdep.h"
	25	#include "bfd.h"
	26	#include "libbfd.h"
	27	#include "elf-bfd.h"
	28	#include "elf/moxie.h"
	29
	30	/* Forward declarations. */
	31
	32	static reloc_howto_type moxie_elf_howto_table [] =
	33	{
	34	/* This reloc does nothing. */
	35	HOWTO (R_MOXIE_NONE, /* type */
	36	0, /* rightshift */
6346d5ca AM	37	3, /* size (0 = byte, 1 = short, 2 = long) */
6346d5ca AM	38	0, /* bitsize */
20135e4c NC	39	FALSE, /* pc_relative */
20135e4c NC	40	0, /* bitpos */
6346d5ca	41	complain_overflow_dont, /* complain_on_overflow */
20135e4c NC	42	bfd_elf_generic_reloc, /* special_function */
	43	"R_MOXIE_NONE", /* name */
	44	FALSE, /* partial_inplace */
	45	0, /* src_mask */
	46	0, /* dst_mask */
	47	FALSE), /* pcrel_offset */
	48
	49	/* A 32 bit absolute relocation. */
	50	HOWTO (R_MOXIE_32, /* type */
	51	0, /* rightshift */
	52	2, /* size (0 = byte, 1 = short, 2 = long) */
	53	32, /* bitsize */
	54	FALSE, /* pc_relative */
	55	0, /* bitpos */
	56	complain_overflow_bitfield, /* complain_on_overflow */
	57	bfd_elf_generic_reloc, /* special_function */
	58	"R_MOXIE_32", /* name */
	59	FALSE, /* partial_inplace */
	60	0x00000000, /* src_mask */
	61	0xffffffff, /* dst_mask */
	62	FALSE), /* pcrel_offset */
f865a31d AG	63
	64	/* A 10 bit PC-relative relocation. */
	65	HOWTO (R_MOXIE_PCREL10, /* type. */
	66	1, /* rightshift. */
	67	1, /* size (0 = byte, 1 = short, 2 = long). */
	68	10, /* bitsize. */
	69	TRUE, /* pc_relative. */
	70	0, /* bitpos. */
	71	complain_overflow_signed, /* complain_on_overflow. */
	72	bfd_elf_generic_reloc, /* special_function. */
	73	"R_MOXIE_PCREL10", /* name. */
	74	FALSE, /* partial_inplace. */
	75	0, /* src_mask. */
	76	0x000003FF, /* dst_mask. */
	77	TRUE), /* pcrel_offset. */
20135e4c NC	78	};
	79	\f
	80	/* Map BFD reloc types to MOXIE ELF reloc types. */
	81
	82	struct moxie_reloc_map
	83	{
	84	bfd_reloc_code_real_type bfd_reloc_val;
	85	unsigned int moxie_reloc_val;
	86	};
	87
	88	static const struct moxie_reloc_map moxie_reloc_map [] =
	89	{
07d6d2b8 AM	90	{ BFD_RELOC_NONE, R_MOXIE_NONE },
07d6d2b8 AM	91	{ BFD_RELOC_32, R_MOXIE_32 },
f865a31d	92	{ BFD_RELOC_MOXIE_10_PCREL, R_MOXIE_PCREL10 },
20135e4c NC	93	};
	94
	95	static reloc_howto_type *
	96	moxie_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	97	bfd_reloc_code_real_type code)
	98	{
	99	unsigned int i;
	100
	101	for (i = sizeof (moxie_reloc_map) / sizeof (moxie_reloc_map[0]);
0ba38529	102	i--;)
20135e4c NC	103	if (moxie_reloc_map [i].bfd_reloc_val == code)
	104	return & moxie_elf_howto_table [moxie_reloc_map[i].moxie_reloc_val];
	105
	106	return NULL;
	107	}
	108
	109	static reloc_howto_type *
	110	moxie_reloc_name_lookup (bfd abfd ATTRIBUTE_UNUSED, const char r_name)
	111	{
	112	unsigned int i;
	113
	114	for (i = 0;
	115	i < sizeof (moxie_elf_howto_table) / sizeof (moxie_elf_howto_table[0]);
	116	i++)
	117	if (moxie_elf_howto_table[i].name != NULL
	118	&& strcasecmp (moxie_elf_howto_table[i].name, r_name) == 0)
	119	return &moxie_elf_howto_table[i];
	120
	121	return NULL;
	122	}
	123
	124	/* Set the howto pointer for an MOXIE ELF reloc. */
	125
	126	static void
	127	moxie_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
	128	arelent *cache_ptr,
	129	Elf_Internal_Rela *dst)
	130	{
	131	unsigned int r_type;
	132
	133	r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8 NC	134	if (r_type >= (unsigned int) R_MOXIE_max)
5860e3f8 NC	135	{
695344c0	136	/* xgettext:c-format */
871b3ab2	137	_bfd_error_handler (_("%pB: invalid Moxie reloc number: %d"), abfd, r_type);
5860e3f8 NC	138	r_type = 0;
5860e3f8 NC	139	}
20135e4c NC	140	cache_ptr->howto = & moxie_elf_howto_table [r_type];
	141	}
	142	\f
	143	/* Perform a single relocation. By default we use the standard BFD
	144	routines, but a few relocs, we have to do them ourselves. */
	145
	146	static bfd_reloc_status_type
	147	moxie_final_link_relocate (reloc_howto_type *howto,
	148	bfd *input_bfd,
	149	asection *input_section,
	150	bfd_byte *contents,
	151	Elf_Internal_Rela *rel,
	152	bfd_vma relocation)
	153	{
	154	bfd_reloc_status_type r = bfd_reloc_ok;
	155
	156	switch (howto->type)
	157	{
	158	default:
	159	r = _bfd_final_link_relocate (howto, input_bfd, input_section,
	160	contents, rel->r_offset,
	161	relocation, rel->r_addend);
	162	}
	163
	164	return r;
	165	}
	166	\f
	167	/* Relocate an MOXIE ELF section.
	168
	169	The RELOCATE_SECTION function is called by the new ELF backend linker
	170	to handle the relocations for a section.
	171
	172	The relocs are always passed as Rela structures; if the section
	173	actually uses Rel structures, the r_addend field will always be
	174	zero.
	175
	176	This function is responsible for adjusting the section contents as
	177	necessary, and (if using Rela relocs and generating a relocatable
	178	output file) adjusting the reloc addend as necessary.
	179
	180	This function does not have to worry about setting the reloc
	181	address or the reloc symbol index.
	182
	183	LOCAL_SYMS is a pointer to the swapped in local symbols.
	184
	185	LOCAL_SECTIONS is an array giving the section in the input file
	186	corresponding to the st_shndx field of each local symbol.
	187
	188	The global hash table entry for the global symbols can be found
	189	via elf_sym_hashes (input_bfd).
	190
	191	When generating relocatable output, this function must handle
	192	STB_LOCAL/STT_SECTION symbols specially. The output symbol is
	193	going to be the section symbol corresponding to the output
	194	section, which means that the addend must be adjusted
	195	accordingly. */
	196
	197	static bfd_boolean
	198	moxie_elf_relocate_section (bfd *output_bfd,
	199	struct bfd_link_info *info,
	200	bfd *input_bfd,
	201	asection *input_section,
	202	bfd_byte *contents,
	203	Elf_Internal_Rela *relocs,
204	Elf_Internal_Sym *local_syms,
205	asection **local_sections)
206	{
207	Elf_Internal_Shdr *symtab_hdr;
208	struct elf_link_hash_entry **sym_hashes;
209	Elf_Internal_Rela *rel;
210	Elf_Internal_Rela *relend;
211
212	symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
213	sym_hashes = elf_sym_hashes (input_bfd);
214	relend = relocs + input_section->reloc_count;
215
216	for (rel = relocs; rel < relend; rel ++)
217	{
218	reloc_howto_type *howto;
219	unsigned long r_symndx;
220	Elf_Internal_Sym *sym;
221	asection *sec;
222	struct elf_link_hash_entry *h;
223	bfd_vma relocation;
224	bfd_reloc_status_type r;
225	const char *name;
226	int r_type;
227
228	r_type = ELF32_R_TYPE (rel->r_info);
20135e4c	229	r_symndx = ELF32_R_SYM (rel->r_info);
c7e2358a	230	howto = moxie_elf_howto_table + r_type;
20135e4c NC	231	h = NULL;
	232	sym = NULL;
	233	sec = NULL;
	234
	235	if (r_symndx < symtab_hdr->sh_info)
	236	{
	237	sym = local_syms + r_symndx;
	238	sec = local_sections [r_symndx];
	239	relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
	240
	241	name = bfd_elf_string_from_elf_section
	242	(input_bfd, symtab_hdr->sh_link, sym->st_name);
	243	name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
	244	}
	245	else
	246	{
62d887d4	247	bfd_boolean unresolved_reloc, warned, ignored;
20135e4c NC	248
	249	RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
	250	r_symndx, symtab_hdr, sym_hashes,
	251	h, sec, relocation,
62d887d4	252	unresolved_reloc, warned, ignored);
20135e4c NC	253
	254	name = h->root.root.string;
	255	}
	256
dbaa2011	257	if (sec != NULL && discarded_section (sec))
e4067dbb	258	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b	259	rel, 1, relend, howto, 0, contents);
20135e4c	260
0e1862bb	261	if (bfd_link_relocatable (info))
20135e4c NC	262	continue;
	263
	264	r = moxie_final_link_relocate (howto, input_bfd, input_section,
	265	contents, rel, relocation);
	266
	267	if (r != bfd_reloc_ok)
	268	{
	269	const char * msg = NULL;
	270
	271	switch (r)
	272	{
	273	case bfd_reloc_overflow:
1a72702b	274	(*info->callbacks->reloc_overflow)
20135e4c NC	275	(info, (h ? &h->root : NULL), name, howto->name,
	276	(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
	277	break;
	278
	279	case bfd_reloc_undefined:
1a72702b AM	280	(*info->callbacks->undefined_symbol)
1a72702b AM	281	(info, name, input_bfd, input_section, rel->r_offset, TRUE);
20135e4c NC	282	break;
	283
	284	case bfd_reloc_outofrange:
	285	msg = _("internal error: out of range error");
	286	break;
	287
	288	case bfd_reloc_notsupported:
	289	msg = _("internal error: unsupported relocation error");
	290	break;
	291
	292	case bfd_reloc_dangerous:
	293	msg = _("internal error: dangerous relocation");
	294	break;
	295
	296	default:
	297	msg = _("internal error: unknown error");
	298	break;
	299	}
	300
	301	if (msg)
1a72702b AM	302	(*info->callbacks->warning) (info, msg, name, input_bfd,
1a72702b AM	303	input_section, rel->r_offset);
20135e4c NC	304	}
	305	}
	306
	307	return TRUE;
	308	}
	309	\f
	310	/* Return the section that should be marked against GC for a given
	311	relocation. */
	312
	313	static asection *
	314	moxie_elf_gc_mark_hook (asection *sec,
	315	struct bfd_link_info *info,
	316	Elf_Internal_Rela *rel,
	317	struct elf_link_hash_entry *h,
	318	Elf_Internal_Sym *sym)
	319	{
	320	return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
	321	}
	322
	323	/* Look through the relocs for a section during the first phase.
	324	Since we don't do .gots or .plts, we just need to consider the
	325	virtual table relocs for gc. */
	326
	327	static bfd_boolean
	328	moxie_elf_check_relocs (bfd *abfd,
	329	struct bfd_link_info *info,
	330	asection *sec,
	331	const Elf_Internal_Rela *relocs)
	332	{
	333	Elf_Internal_Shdr *symtab_hdr;
	334	struct elf_link_hash_entry **sym_hashes;
	335	const Elf_Internal_Rela *rel;
	336	const Elf_Internal_Rela *rel_end;
	337
0e1862bb	338	if (bfd_link_relocatable (info))
20135e4c NC	339	return TRUE;
	340
	341	symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
	342	sym_hashes = elf_sym_hashes (abfd);
	343
	344	rel_end = relocs + sec->reloc_count;
	345	for (rel = relocs; rel < rel_end; rel++)
	346	{
	347	struct elf_link_hash_entry *h;
	348	unsigned long r_symndx;
	349
	350	r_symndx = ELF32_R_SYM (rel->r_info);
	351	if (r_symndx < symtab_hdr->sh_info)
07d6d2b8	352	h = NULL;
20135e4c NC	353	else
	354	{
	355	h = sym_hashes[r_symndx - symtab_hdr->sh_info];
	356	while (h->root.type == bfd_link_hash_indirect
	357	\|\| h->root.type == bfd_link_hash_warning)
	358	h = (struct elf_link_hash_entry *) h->root.u.i.link;
	359	}
	360	}
	361
	362	return TRUE;
	363	}
	364	\f
	365	#define ELF_ARCH bfd_arch_moxie
	366	#define ELF_MACHINE_CODE EM_MOXIE
07d6d2b8	367	#define ELF_MACHINE_ALT1 EM_MOXIE_OLD
20135e4c NC	368	#define ELF_MAXPAGESIZE 0x1
20135e4c NC	369
07d6d2b8	370	#define TARGET_BIG_SYM moxie_elf32_be_vec
e202fa84	371	#define TARGET_BIG_NAME "elf32-bigmoxie"
07d6d2b8	372	#define TARGET_LITTLE_SYM moxie_elf32_le_vec
e202fa84	373	#define TARGET_LITTLE_NAME "elf32-littlemoxie"
20135e4c NC	374
	375	#define elf_info_to_howto_rel NULL
	376	#define elf_info_to_howto moxie_info_to_howto_rela
	377	#define elf_backend_relocate_section moxie_elf_relocate_section
	378	#define elf_backend_gc_mark_hook moxie_elf_gc_mark_hook
07d6d2b8	379	#define elf_backend_check_relocs moxie_elf_check_relocs
20135e4c NC	380
	381	#define elf_backend_can_gc_sections 1
	382	#define elf_backend_rela_normal 1
	383
	384	#define bfd_elf32_bfd_reloc_type_lookup moxie_reloc_type_lookup
	385	#define bfd_elf32_bfd_reloc_name_lookup moxie_reloc_name_lookup
	386
	387	#include "elf32-target.h"