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

/* moxie-specific support for 32-bit ELF.
   Copyright (C) 2009-2015 Free Software Foundation, Inc.

   Copied from elf32-fr30.c which is..
   Copyright (C) 1998-2015 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);
  if (r_type >= (unsigned int) R_MOXIE_max)
    {
      _bfd_error_handler (_("%A: 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 (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;

	  /* PR15323, ref flags aren't set for references in the same
	     object.  */
	  h->root.non_ir_ref = 1;
	}
    }

  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.
b90efa5b	2	Copyright (C) 2009-2015 Free Software Foundation, Inc.
20135e4c NC	3
20135e4c NC	4	Copied from elf32-fr30.c which is..
b90efa5b	5	Copyright (C) 1998-2015 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 */
	37	2, /* size (0 = byte, 1 = short, 2 = long) */
	38	32, /* bitsize */
	39	FALSE, /* pc_relative */
	40	0, /* bitpos */
	41	complain_overflow_bitfield, /* complain_on_overflow */
	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	{
f865a31d AG	90	{ BFD_RELOC_NONE, R_MOXIE_NONE },
	91	{ BFD_RELOC_32, R_MOXIE_32 },
	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]);
	102	--i;)
	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)
	135	{
	136	_bfd_error_handler (_("%A: invalid Moxie reloc number: %d"), abfd, r_type);
	137	r_type = 0;
	138	}
20135e4c NC	139	cache_ptr->howto = & moxie_elf_howto_table [r_type];
	140	}
	141	\f
	142	/* Perform a single relocation. By default we use the standard BFD
	143	routines, but a few relocs, we have to do them ourselves. */
	144
	145	static bfd_reloc_status_type
	146	moxie_final_link_relocate (reloc_howto_type *howto,
	147	bfd *input_bfd,
	148	asection *input_section,
	149	bfd_byte *contents,
	150	Elf_Internal_Rela *rel,
	151	bfd_vma relocation)
	152	{
	153	bfd_reloc_status_type r = bfd_reloc_ok;
	154
	155	switch (howto->type)
	156	{
	157	default:
	158	r = _bfd_final_link_relocate (howto, input_bfd, input_section,
	159	contents, rel->r_offset,
	160	relocation, rel->r_addend);
	161	}
	162
	163	return r;
	164	}
	165	\f
	166	/* Relocate an MOXIE ELF section.
	167
	168	The RELOCATE_SECTION function is called by the new ELF backend linker
	169	to handle the relocations for a section.
	170
	171	The relocs are always passed as Rela structures; if the section
	172	actually uses Rel structures, the r_addend field will always be
	173	zero.
	174
	175	This function is responsible for adjusting the section contents as
	176	necessary, and (if using Rela relocs and generating a relocatable
	177	output file) adjusting the reloc addend as necessary.
	178
	179	This function does not have to worry about setting the reloc
	180	address or the reloc symbol index.
	181
	182	LOCAL_SYMS is a pointer to the swapped in local symbols.
	183
	184	LOCAL_SECTIONS is an array giving the section in the input file
	185	corresponding to the st_shndx field of each local symbol.
	186
	187	The global hash table entry for the global symbols can be found
	188	via elf_sym_hashes (input_bfd).
	189
	190	When generating relocatable output, this function must handle
	191	STB_LOCAL/STT_SECTION symbols specially. The output symbol is
	192	going to be the section symbol corresponding to the output
	193	section, which means that the addend must be adjusted
	194	accordingly. */
	195
	196	static bfd_boolean
	197	moxie_elf_relocate_section (bfd *output_bfd,
	198	struct bfd_link_info *info,
	199	bfd *input_bfd,
	200	asection *input_section,
	201	bfd_byte *contents,
	202	Elf_Internal_Rela *relocs,
203	Elf_Internal_Sym *local_syms,
204	asection **local_sections)
205	{
206	Elf_Internal_Shdr *symtab_hdr;
207	struct elf_link_hash_entry **sym_hashes;
208	Elf_Internal_Rela *rel;
209	Elf_Internal_Rela *relend;
210
211	symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
212	sym_hashes = elf_sym_hashes (input_bfd);
213	relend = relocs + input_section->reloc_count;
214
215	for (rel = relocs; rel < relend; rel ++)
216	{
217	reloc_howto_type *howto;
218	unsigned long r_symndx;
219	Elf_Internal_Sym *sym;
220	asection *sec;
221	struct elf_link_hash_entry *h;
222	bfd_vma relocation;
223	bfd_reloc_status_type r;
224	const char *name;
225	int r_type;
226
227	r_type = ELF32_R_TYPE (rel->r_info);
20135e4c	228	r_symndx = ELF32_R_SYM (rel->r_info);
c7e2358a	229	howto = moxie_elf_howto_table + r_type;
20135e4c NC	230	h = NULL;
	231	sym = NULL;
	232	sec = NULL;
	233
	234	if (r_symndx < symtab_hdr->sh_info)
	235	{
	236	sym = local_syms + r_symndx;
	237	sec = local_sections [r_symndx];
	238	relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
	239
	240	name = bfd_elf_string_from_elf_section
	241	(input_bfd, symtab_hdr->sh_link, sym->st_name);
	242	name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
	243	}
	244	else
	245	{
62d887d4	246	bfd_boolean unresolved_reloc, warned, ignored;
20135e4c NC	247
	248	RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
	249	r_symndx, symtab_hdr, sym_hashes,
	250	h, sec, relocation,
62d887d4	251	unresolved_reloc, warned, ignored);
20135e4c NC	252
	253	name = h->root.root.string;
	254	}
	255
dbaa2011	256	if (sec != NULL && discarded_section (sec))
e4067dbb	257	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b	258	rel, 1, relend, howto, 0, contents);
20135e4c NC	259
	260	if (info->relocatable)
	261	continue;
	262
	263	r = moxie_final_link_relocate (howto, input_bfd, input_section,
	264	contents, rel, relocation);
	265
	266	if (r != bfd_reloc_ok)
	267	{
	268	const char * msg = NULL;
	269
	270	switch (r)
	271	{
	272	case bfd_reloc_overflow:
	273	r = info->callbacks->reloc_overflow
	274	(info, (h ? &h->root : NULL), name, howto->name,
	275	(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
	276	break;
	277
	278	case bfd_reloc_undefined:
	279	r = info->callbacks->undefined_symbol
	280	(info, name, input_bfd, input_section, rel->r_offset,
	281	TRUE);
	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)
	302	r = info->callbacks->warning
	303	(info, msg, name, input_bfd, input_section, rel->r_offset);
	304
	305	if (! r)
	306	return FALSE;
	307	}
	308	}
	309
	310	return TRUE;
	311	}
	312	\f
	313	/* Return the section that should be marked against GC for a given
	314	relocation. */
	315
	316	static asection *
	317	moxie_elf_gc_mark_hook (asection *sec,
	318	struct bfd_link_info *info,
	319	Elf_Internal_Rela *rel,
	320	struct elf_link_hash_entry *h,
	321	Elf_Internal_Sym *sym)
	322	{
323	return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
324	}
325
326	/* Look through the relocs for a section during the first phase.
327	Since we don't do .gots or .plts, we just need to consider the
328	virtual table relocs for gc. */
329
330	static bfd_boolean
331	moxie_elf_check_relocs (bfd *abfd,
332	struct bfd_link_info *info,
333	asection *sec,
334	const Elf_Internal_Rela *relocs)
335	{
336	Elf_Internal_Shdr *symtab_hdr;
337	struct elf_link_hash_entry **sym_hashes;
338	const Elf_Internal_Rela *rel;
339	const Elf_Internal_Rela *rel_end;
340
341	if (info->relocatable)
342	return TRUE;
343
344	symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
345	sym_hashes = elf_sym_hashes (abfd);
346
347	rel_end = relocs + sec->reloc_count;
348	for (rel = relocs; rel < rel_end; rel++)
349	{
350	struct elf_link_hash_entry *h;
351	unsigned long r_symndx;
352
353	r_symndx = ELF32_R_SYM (rel->r_info);
354	if (r_symndx < symtab_hdr->sh_info)
355	h = NULL;
356	else
357	{
358	h = sym_hashes[r_symndx - symtab_hdr->sh_info];
359	while (h->root.type == bfd_link_hash_indirect
360	\|\| h->root.type == bfd_link_hash_warning)
361	h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831 AM	362
	363	/* PR15323, ref flags aren't set for references in the same
	364	object. */
	365	h->root.non_ir_ref = 1;
20135e4c NC	366	}
	367	}
	368
	369	return TRUE;
	370	}
	371	\f
	372	#define ELF_ARCH bfd_arch_moxie
	373	#define ELF_MACHINE_CODE EM_MOXIE
400cf8cb	374	#define ELF_MACHINE_ALT1 EM_MOXIE_OLD
20135e4c NC	375	#define ELF_MAXPAGESIZE 0x1
20135e4c NC	376
6d00b590	377	#define TARGET_BIG_SYM moxie_elf32_be_vec
e202fa84	378	#define TARGET_BIG_NAME "elf32-bigmoxie"
6d00b590	379	#define TARGET_LITTLE_SYM moxie_elf32_le_vec
e202fa84	380	#define TARGET_LITTLE_NAME "elf32-littlemoxie"
20135e4c NC	381
	382	#define elf_info_to_howto_rel NULL
	383	#define elf_info_to_howto moxie_info_to_howto_rela
	384	#define elf_backend_relocate_section moxie_elf_relocate_section
	385	#define elf_backend_gc_mark_hook moxie_elf_gc_mark_hook
	386	#define elf_backend_check_relocs moxie_elf_check_relocs
	387
	388	#define elf_backend_can_gc_sections 1
	389	#define elf_backend_rela_normal 1
	390
	391	#define bfd_elf32_bfd_reloc_type_lookup moxie_reloc_type_lookup
	392	#define bfd_elf32_bfd_reloc_name_lookup moxie_reloc_name_lookup
	393
	394	#include "elf32-target.h"