[deliverable/binutils-gdb.git] / bfd / elf32-ft32.c

/* ft32-specific support for 32-bit ELF.
   Copyright (C) 2013-2017 Free Software Foundation, Inc.

   Copied from elf32-moxie.c which is..
   Copyright (C) 2009-2017 Free Software Foundation, Inc.
   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/ft32.h"

/* Forward declarations.  */

static reloc_howto_type ft32_elf_howto_table [] =
{
  /* This reloc does nothing.  */
  HOWTO (R_FT32_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_FT32_NONE",		/* name */
	 FALSE,			/* partial_inplace */
	 0,			/* src_mask */
	 0,			/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 32 bit absolute relocation.  */

  HOWTO (R_FT32_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_FT32_32",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0xffffffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  HOWTO (R_FT32_16,		/* type */
	 0,			/* rightshift */
	 1,			/* 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_FT32_16",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0x0000ffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  HOWTO (R_FT32_8,		/* type */
	 0,			/* rightshift */
	 0,			/* size (0 = byte, 1 = short, 2 = long) */
	 8,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_signed, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FT32_8",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0x000000ff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  HOWTO (R_FT32_10,		/* type */
	 0,			/* rightshift */
	 1,			/* size (0 = byte, 1 = short, 2 = long) */
	 10,			/* bitsize */
	 FALSE,			/* pc_relative */
	 4,			/* bitpos */
	 complain_overflow_signed, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FT32_10",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0x00003ff0,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  HOWTO (R_FT32_20,		/* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 20,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FT32_20",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0x000fffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  HOWTO (R_FT32_17,		/* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 17,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FT32_17",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0x0001ffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  HOWTO (R_FT32_18,		/* type */
	 2,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 18,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FT32_18",		/* name */
	 FALSE,		/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0x0003ffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  HOWTO (R_FT32_15,		/* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 15,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FT32_15",		/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,		/* src_mask */
	 0x00007fff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */
};
\f
/* Map BFD reloc types to FT32 ELF reloc types.  */

struct ft32_reloc_map
{
  bfd_reloc_code_real_type bfd_reloc_val;
  unsigned int ft32_reloc_val;
};

static const struct ft32_reloc_map ft32_reloc_map [] =
{
  { BFD_RELOC_NONE,            R_FT32_NONE },
  { BFD_RELOC_32,              R_FT32_32 },
  { BFD_RELOC_16,              R_FT32_16 },
  { BFD_RELOC_8,               R_FT32_8 },
  { BFD_RELOC_FT32_10,           R_FT32_10 },
  { BFD_RELOC_FT32_20,           R_FT32_20 },
  { BFD_RELOC_FT32_17,           R_FT32_17 },
  { BFD_RELOC_FT32_18,           R_FT32_18 },
  { BFD_RELOC_FT32_15,          R_FT32_15 },
};

static reloc_howto_type *
ft32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
			 bfd_reloc_code_real_type code)
{
  unsigned int i;

  for (i = sizeof (ft32_reloc_map) / sizeof (ft32_reloc_map[0]);
       --i;)
    if (ft32_reloc_map [i].bfd_reloc_val == code)
      return & ft32_elf_howto_table [ft32_reloc_map[i].ft32_reloc_val];

  return NULL;
}

static reloc_howto_type *
ft32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
{
  unsigned int i;

  for (i = 0;
       i < sizeof (ft32_elf_howto_table) / sizeof (ft32_elf_howto_table[0]);
       i++)
    if (ft32_elf_howto_table[i].name != NULL
	&& strcasecmp (ft32_elf_howto_table[i].name, r_name) == 0)
      return &ft32_elf_howto_table[i];

  return NULL;
}

/* Set the howto pointer for an FT32 ELF reloc.  */

static void
ft32_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_FT32_max);
  cache_ptr->howto = & ft32_elf_howto_table [r_type];
}
\f
/* Relocate an FT32 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
ft32_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  = ft32_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 = _bfd_final_link_relocate (howto, input_bfd, input_section,
				    contents, rel->r_offset,
				    relocation, rel->r_addend);

      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
#define ELF_ARCH		bfd_arch_ft32
#define ELF_MACHINE_CODE	EM_FT32
#define ELF_MAXPAGESIZE		0x1

#define TARGET_LITTLE_SYM       ft32_elf32_vec
#define TARGET_LITTLE_NAME	"elf32-ft32"

#define elf_info_to_howto_rel			NULL
#define elf_info_to_howto			ft32_info_to_howto_rela
#define elf_backend_relocate_section		ft32_elf_relocate_section

#define elf_backend_can_gc_sections		1
#define elf_backend_rela_normal			1

#define bfd_elf32_bfd_reloc_type_lookup		ft32_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup		ft32_reloc_name_lookup

#include "elf32-target.h"
Commit	Line	Data
3f8107ab	1	/* ft32-specific support for 32-bit ELF.
2571583a	2	Copyright (C) 2013-2017 Free Software Foundation, Inc.
3f8107ab AM	3
3f8107ab AM	4	Copied from elf32-moxie.c which is..
2571583a	5	Copyright (C) 2009-2017 Free Software Foundation, Inc.
3f8107ab AM	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/ft32.h"
	30
	31	/* Forward declarations. */
	32
	33	static reloc_howto_type ft32_elf_howto_table [] =
	34	{
	35	/* This reloc does nothing. */
	36	HOWTO (R_FT32_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_FT32_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
	52	HOWTO (R_FT32_32, /* type */
	53	0, /* rightshift */
	54	2, /* size (0 = byte, 1 = short, 2 = long) */
	55	32, /* bitsize */
	56	FALSE, /* pc_relative */
	57	0, /* bitpos */
	58	complain_overflow_bitfield, /* complain_on_overflow */
	59	bfd_elf_generic_reloc, /* special_function */
	60	"R_FT32_32", /* name */
	61	FALSE, /* partial_inplace */
	62	0x00000000, /* src_mask */
	63	0xffffffff, /* dst_mask */
	64	FALSE), /* pcrel_offset */
	65
	66	HOWTO (R_FT32_16, /* type */
	67	0, /* rightshift */
	68	1, /* size (0 = byte, 1 = short, 2 = long) */
	69	16, /* bitsize */
70	FALSE, /* pc_relative */
71	0, /* bitpos */
72	complain_overflow_bitfield, /* complain_on_overflow */
73	bfd_elf_generic_reloc, /* special_function */
74	"R_FT32_16", /* name */
75	FALSE, /* partial_inplace */
76	0x00000000, /* src_mask */
77	0x0000ffff, /* dst_mask */
78	FALSE), /* pcrel_offset */
79
80	HOWTO (R_FT32_8, /* type */
81	0, /* rightshift */
82	0, /* size (0 = byte, 1 = short, 2 = long) */
83	8, /* bitsize */
84	FALSE, /* pc_relative */
85	0, /* bitpos */
86	complain_overflow_signed, /* complain_on_overflow */
87	bfd_elf_generic_reloc, /* special_function */
88	"R_FT32_8", /* name */
89	FALSE, /* partial_inplace */
90	0x00000000, /* src_mask */
91	0x000000ff, /* dst_mask */
92	FALSE), /* pcrel_offset */
93
94	HOWTO (R_FT32_10, /* type */
95	0, /* rightshift */
96	1, /* size (0 = byte, 1 = short, 2 = long) */
97	10, /* bitsize */
98	FALSE, /* pc_relative */
99	4, /* bitpos */
100	complain_overflow_signed, /* complain_on_overflow */
101	bfd_elf_generic_reloc, /* special_function */
102	"R_FT32_10", /* name */
103	FALSE, /* partial_inplace */
104	0x00000000, /* src_mask */
105	0x00003ff0, /* dst_mask */
106	FALSE), /* pcrel_offset */
107
108	HOWTO (R_FT32_20, /* type */
109	0, /* rightshift */
110	2, /* size (0 = byte, 1 = short, 2 = long) */
111	20, /* bitsize */
112	FALSE, /* pc_relative */
113	0, /* bitpos */
114	complain_overflow_dont, /* complain_on_overflow */
115	bfd_elf_generic_reloc, /* special_function */
116	"R_FT32_20", /* name */
117	FALSE, /* partial_inplace */
118	0x00000000, /* src_mask */
119	0x000fffff, /* dst_mask */
120	FALSE), /* pcrel_offset */
121
122	HOWTO (R_FT32_17, /* type */
123	0, /* rightshift */
124	2, /* size (0 = byte, 1 = short, 2 = long) */
125	17, /* bitsize */
126	FALSE, /* pc_relative */
127	0, /* bitpos */
128	complain_overflow_dont, /* complain_on_overflow */
129	bfd_elf_generic_reloc, /* special_function */
130	"R_FT32_17", /* name */
131	FALSE, /* partial_inplace */
132	0x00000000, /* src_mask */
133	0x0001ffff, /* dst_mask */
134	FALSE), /* pcrel_offset */
135
136	HOWTO (R_FT32_18, /* type */
137	2, /* rightshift */
138	2, /* size (0 = byte, 1 = short, 2 = long) */
139	18, /* bitsize */
140	FALSE, /* pc_relative */
141	0, /* bitpos */
ef32532f	142	complain_overflow_dont, /* complain_on_overflow */
3f8107ab AM	143	bfd_elf_generic_reloc, /* special_function */
	144	"R_FT32_18", /* name */
	145	FALSE, /* partial_inplace */
	146	0x00000000, /* src_mask */
	147	0x0003ffff, /* dst_mask */
	148	FALSE), /* pcrel_offset */
	149
3b4b0a62 JB	150	HOWTO (R_FT32_15, /* type */
	151	0, /* rightshift */
	152	2, /* size (0 = byte, 1 = short, 2 = long) */
	153	15, /* bitsize */
	154	FALSE, /* pc_relative */
	155	0, /* bitpos */
	156	complain_overflow_dont, /* complain_on_overflow */
	157	bfd_elf_generic_reloc, /* special_function */
	158	"R_FT32_15", /* name */
	159	FALSE, /* partial_inplace */
	160	0x00000000, /* src_mask */
	161	0x00007fff, /* dst_mask */
	162	FALSE), /* pcrel_offset */
3f8107ab AM	163	};
	164	\f
	165	/* Map BFD reloc types to FT32 ELF reloc types. */
	166
	167	struct ft32_reloc_map
	168	{
	169	bfd_reloc_code_real_type bfd_reloc_val;
	170	unsigned int ft32_reloc_val;
	171	};
	172
	173	static const struct ft32_reloc_map ft32_reloc_map [] =
	174	{
	175	{ BFD_RELOC_NONE, R_FT32_NONE },
458653a9	176	{ BFD_RELOC_32, R_FT32_32 },
3f8107ab AM	177	{ BFD_RELOC_16, R_FT32_16 },
	178	{ BFD_RELOC_8, R_FT32_8 },
	179	{ BFD_RELOC_FT32_10, R_FT32_10 },
	180	{ BFD_RELOC_FT32_20, R_FT32_20 },
	181	{ BFD_RELOC_FT32_17, R_FT32_17 },
	182	{ BFD_RELOC_FT32_18, R_FT32_18 },
3b4b0a62	183	{ BFD_RELOC_FT32_15, R_FT32_15 },
3f8107ab AM	184	};
	185
	186	static reloc_howto_type *
	187	ft32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	188	bfd_reloc_code_real_type code)
	189	{
	190	unsigned int i;
	191
	192	for (i = sizeof (ft32_reloc_map) / sizeof (ft32_reloc_map[0]);
	193	--i;)
	194	if (ft32_reloc_map [i].bfd_reloc_val == code)
	195	return & ft32_elf_howto_table [ft32_reloc_map[i].ft32_reloc_val];
	196
	197	return NULL;
	198	}
	199
	200	static reloc_howto_type *
	201	ft32_reloc_name_lookup (bfd abfd ATTRIBUTE_UNUSED, const char r_name)
	202	{
	203	unsigned int i;
	204
	205	for (i = 0;
	206	i < sizeof (ft32_elf_howto_table) / sizeof (ft32_elf_howto_table[0]);
	207	i++)
	208	if (ft32_elf_howto_table[i].name != NULL
	209	&& strcasecmp (ft32_elf_howto_table[i].name, r_name) == 0)
	210	return &ft32_elf_howto_table[i];
	211
	212	return NULL;
	213	}
	214
	215	/* Set the howto pointer for an FT32 ELF reloc. */
	216
	217	static void
	218	ft32_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
	219	arelent *cache_ptr,
	220	Elf_Internal_Rela *dst)
	221	{
	222	unsigned int r_type;
	223
	224	r_type = ELF32_R_TYPE (dst->r_info);
	225	BFD_ASSERT (r_type < (unsigned int) R_FT32_max);
	226	cache_ptr->howto = & ft32_elf_howto_table [r_type];
	227	}
	228	\f
	229	/* Relocate an FT32 ELF section.
	230
	231	The RELOCATE_SECTION function is called by the new ELF backend linker
	232	to handle the relocations for a section.
	233
	234	The relocs are always passed as Rela structures; if the section
	235	actually uses Rel structures, the r_addend field will always be
	236	zero.
	237
	238	This function is responsible for adjusting the section contents as
	239	necessary, and (if using Rela relocs and generating a relocatable
	240	output file) adjusting the reloc addend as necessary.
	241
	242	This function does not have to worry about setting the reloc
	243	address or the reloc symbol index.
	244
	245	LOCAL_SYMS is a pointer to the swapped in local symbols.
	246
	247	LOCAL_SECTIONS is an array giving the section in the input file
248	corresponding to the st_shndx field of each local symbol.
249
250	The global hash table entry for the global symbols can be found
251	via elf_sym_hashes (input_bfd).
252
253	When generating relocatable output, this function must handle
254	STB_LOCAL/STT_SECTION symbols specially. The output symbol is
255	going to be the section symbol corresponding to the output
256	section, which means that the addend must be adjusted
257	accordingly. */
258
259	static bfd_boolean
260	ft32_elf_relocate_section (bfd *output_bfd,
261	struct bfd_link_info *info,
262	bfd *input_bfd,
263	asection *input_section,
264	bfd_byte *contents,
265	Elf_Internal_Rela *relocs,
266	Elf_Internal_Sym *local_syms,
267	asection **local_sections)
268	{
269	Elf_Internal_Shdr *symtab_hdr;
270	struct elf_link_hash_entry **sym_hashes;
271	Elf_Internal_Rela *rel;
272	Elf_Internal_Rela *relend;
273
274	symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
275	sym_hashes = elf_sym_hashes (input_bfd);
276	relend = relocs + input_section->reloc_count;
277
278	for (rel = relocs; rel < relend; rel ++)
279	{
280	reloc_howto_type *howto;
281	unsigned long r_symndx;
282	Elf_Internal_Sym *sym;
283	asection *sec;
284	struct elf_link_hash_entry *h;
285	bfd_vma relocation;
286	bfd_reloc_status_type r;
287	const char *name;
288	int r_type;
289
290	r_type = ELF32_R_TYPE (rel->r_info);
291	r_symndx = ELF32_R_SYM (rel->r_info);
292	howto = ft32_elf_howto_table + r_type;
293	h = NULL;
294	sym = NULL;
295	sec = NULL;
296
297	if (r_symndx < symtab_hdr->sh_info)
298	{
299	sym = local_syms + r_symndx;
300	sec = local_sections [r_symndx];
301	relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
302
303	name = bfd_elf_string_from_elf_section
304	(input_bfd, symtab_hdr->sh_link, sym->st_name);
305	name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
306	}
307	else
308	{
309	bfd_boolean unresolved_reloc, warned, ignored;
310
311	RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
312	r_symndx, symtab_hdr, sym_hashes,
313	h, sec, relocation,
314	unresolved_reloc, warned, ignored);
315
316	name = h->root.root.string;
317	}
318
319	if (sec != NULL && discarded_section (sec))
320	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
321	rel, 1, relend, howto, 0, contents);
322
0e1862bb	323	if (bfd_link_relocatable (info))
3f8107ab AM	324	continue;
	325
	326	r = _bfd_final_link_relocate (howto, input_bfd, input_section,
	327	contents, rel->r_offset,
	328	relocation, rel->r_addend);
	329
	330	if (r != bfd_reloc_ok)
	331	{
	332	const char * msg = NULL;
	333
	334	switch (r)
	335	{
	336	case bfd_reloc_overflow:
1a72702b	337	(*info->callbacks->reloc_overflow)
3f8107ab AM	338	(info, (h ? &h->root : NULL), name, howto->name,
	339	(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
	340	break;
	341
	342	case bfd_reloc_undefined:
1a72702b AM	343	(*info->callbacks->undefined_symbol)
1a72702b AM	344	(info, name, input_bfd, input_section, rel->r_offset, TRUE);
3f8107ab AM	345	break;
	346
	347	case bfd_reloc_outofrange:
	348	msg = _("internal error: out of range error");
	349	break;
	350
	351	case bfd_reloc_notsupported:
	352	msg = _("internal error: unsupported relocation error");
	353	break;
	354
	355	case bfd_reloc_dangerous:
	356	msg = _("internal error: dangerous relocation");
	357	break;
	358
	359	default:
	360	msg = _("internal error: unknown error");
	361	break;
	362	}
	363
	364	if (msg)
1a72702b AM	365	(*info->callbacks->warning) (info, msg, name, input_bfd,
1a72702b AM	366	input_section, rel->r_offset);
3f8107ab AM	367	}
	368	}
	369
	370	return TRUE;
	371	}
	372	\f
	373	#define ELF_ARCH bfd_arch_ft32
	374	#define ELF_MACHINE_CODE EM_FT32
	375	#define ELF_MAXPAGESIZE 0x1
	376
	377	#define TARGET_LITTLE_SYM ft32_elf32_vec
	378	#define TARGET_LITTLE_NAME "elf32-ft32"
	379
	380	#define elf_info_to_howto_rel NULL
	381	#define elf_info_to_howto ft32_info_to_howto_rela
	382	#define elf_backend_relocate_section ft32_elf_relocate_section
	383
	384	#define elf_backend_can_gc_sections 1
	385	#define elf_backend_rela_normal 1
	386
	387	#define bfd_elf32_bfd_reloc_type_lookup ft32_reloc_type_lookup
	388	#define bfd_elf32_bfd_reloc_name_lookup ft32_reloc_name_lookup
	389
	390	#include "elf32-target.h"