[thirdparty/binutils-gdb.git] / bfd / elf32-s12z.c

/* Freescale S12Z-specific support for 32-bit ELF
   Copyright (C) 1999-2020 Free Software Foundation, Inc.
   (Heavily copied from the D10V port by Martin Hunt (hunt@cygnus.com))

   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 "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"

#include "elf/s12z.h"

/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1.  */
#define OCTETS_PER_BYTE(ABFD, SEC) 1

/* Relocation functions.  */
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
  (bfd *, bfd_reloc_code_real_type);
static bfd_boolean s12z_info_to_howto_rel
  (bfd *, arelent *, Elf_Internal_Rela *);

static bfd_reloc_status_type
opru18_reloc (bfd *abfd, arelent *reloc_entry, struct bfd_symbol *symbol,
		    void *data, asection *input_section ATTRIBUTE_UNUSED,
		    bfd *output ATTRIBUTE_UNUSED, char **msg ATTRIBUTE_UNUSED)
{
  /* This reloc is used for 18 bit General Operand Addressing Postbyte in the
     INST opru18 form.  This is an 18 bit reloc, but the most significant bit
     is shifted one place to the left of where it would normally be.  See
     Appendix A.4 of the S12Z reference manual.  */

  bfd_size_type octets = (reloc_entry->address
			  * OCTETS_PER_BYTE (abfd, input_section));
  bfd_vma result = bfd_get_24 (abfd, (unsigned char *) data + octets);
  bfd_vma val = bfd_asymbol_value (symbol);

  /* Keep the wanted bits and discard the rest.  */
  result &= 0xFA0000;

  val += symbol->section->output_section->vma;
  val += symbol->section->output_offset;

  /* The lowest 17 bits are copied verbatim.  */
  result |= val & 0x1FFFF;

  /* The 18th bit is put into the 19th position.  */
  result |= (val & 0x020000) << 1;

  bfd_put_24 (abfd, result, (unsigned char *) data + octets);

  return bfd_reloc_ok;
}


static bfd_reloc_status_type
shift_addend_reloc (bfd *abfd, arelent *reloc_entry, struct bfd_symbol *symbol ATTRIBUTE_UNUSED,
		    void *data ATTRIBUTE_UNUSED, asection *input_section ATTRIBUTE_UNUSED,
		    bfd *output ATTRIBUTE_UNUSED, char **msg ATTRIBUTE_UNUSED)
{
  /* This is a really peculiar reloc, which is done for compatibility
     with the Freescale toolchain.

     That toolchain appears to (ab)use the lowest 15 bits of the addend for
     the purpose of holding flags.  The purpose of these flags are unknown.
     So in this function, when writing the bfd we left shift the addend by
     15, and when reading we right shift it by 15 (discarding the lower bits).

     This allows the linker to work with object files generated by Freescale,
     as well as by Gas.  */

  if (abfd->is_linker_input)
    reloc_entry->addend >>= 15;
  else
    reloc_entry->addend <<= 15;

  return bfd_reloc_continue;
}

#define USE_REL	0

static reloc_howto_type elf_s12z_howto_table[] =
{
  /* This reloc does nothing.  */
  HOWTO (R_S12Z_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_S12Z_NONE",	/* name */
	 FALSE,			/* partial_inplace */
	 0,			/* src_mask */
	 0,			/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 24 bit absolute relocation emitted by the OPR mode operands  */
  HOWTO (R_S12Z_OPR,        /* type */
	 0,			/* rightshift */
	 5,			/* size (0 = byte, 1 = short, 2 = long) */
	 24,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield,	/* complain_on_overflow */
	 shift_addend_reloc,
	 "R_S12Z_OPR",	/* name */
	 FALSE,			/* partial_inplace */
	 0x00ffffff,            /* src_mask */
	 0x00ffffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* The purpose of this reloc is not known */
  HOWTO (R_S12Z_UKNWN_2,	/* 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_S12Z_UKNWN_2",	/* name */
	 FALSE,			/* partial_inplace */
	 0,			/* src_mask */
	 0,			/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 15 bit PC-rel relocation */
  HOWTO (R_S12Z_PCREL_7_15,	/* type */
	 0,			/* rightshift */
	 1,			/* size (0 = byte, 1 = short, 2 = long) */
	 15,			/* bitsize */
	 TRUE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield,	/* complain_on_overflow */
	 shift_addend_reloc,
	 "R_S12Z_PCREL_7_15",	/* name */
	 FALSE,			/* partial_inplace */
	 0x00,                  /* src_mask */
	 0x007fff,		/* dst_mask */
	 TRUE),		/* pcrel_offset */

  /* A 24 bit absolute relocation emitted by EXT24 mode operands */
  HOWTO (R_S12Z_EXT24,        /* type */
	 0,			/* rightshift */
	 5,			/* size (0 = byte, 1 = short, 2 = long) */
	 24,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield,	/* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_S12Z_EXT24",	/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,            /* src_mask */
	 0x00ffffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* An 18 bit absolute relocation */
  HOWTO (R_S12Z_EXT18,        /* type */
	 0,			/* rightshift */
	 5,			/* size (0 = byte, 1 = short, 2 = long) */
	 18,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield,	/* complain_on_overflow */
	 opru18_reloc,	        /* special_function */
	 "R_S12Z_EXT18",	/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,            /* src_mask */
	 0x0005ffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 32 bit absolute relocation.   This kind of relocation is
     schizophrenic - Although they appear in sections named .rela.debug.*
     in some sections they behave as RELA relocs, but in others they have
     an added of zero and behave as REL.

     It is not recommended that new code  emits this reloc.   It is here
     only to support existing elf files generated by third party
     applications.  */

  HOWTO (R_S12Z_CW32,        /* 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_S12Z_CW32",	/* name */
	 FALSE,			/* partial_inplace */
	 0xffffffff,            /* src_mask */
	 0xffffffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 32 bit absolute relocation  */
  HOWTO (R_S12Z_EXT32,        /* 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_S12Z_EXT32",	/* name */
	 FALSE,			/* partial_inplace */
	 0x00000000,            /* src_mask */
	 0xffffffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */
};

/* Map BFD reloc types to S12Z ELF reloc types.  */

struct s12z_reloc_map
{
  bfd_reloc_code_real_type bfd_reloc_val;
  unsigned char elf_reloc_val;
};

static const struct s12z_reloc_map s12z_reloc_map[] =
{
  /* bfd reloc val */  /* elf reloc val */
  {BFD_RELOC_NONE,     R_S12Z_NONE},
  {BFD_RELOC_32,       R_S12Z_EXT32},
  {BFD_RELOC_24,       R_S12Z_EXT24},
  {BFD_RELOC_16_PCREL, R_S12Z_PCREL_7_15},
  {BFD_RELOC_S12Z_OPR, R_S12Z_OPR}
};

static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
				 bfd_reloc_code_real_type code)
{
  unsigned int i;

  for (i = 0;
       i < sizeof (s12z_reloc_map) / sizeof (struct s12z_reloc_map);
       i++)
    {
      if (s12z_reloc_map[i].bfd_reloc_val == code)
	{
	  return &elf_s12z_howto_table[s12z_reloc_map[i].elf_reloc_val];
	}
    }

  printf ("%s:%d Not found type %d\n", __FILE__, __LINE__, code);

  return NULL;
}

static reloc_howto_type *
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
				 const char *r_name)
{
  unsigned int i;

  for (i = 0;
       i < (sizeof (elf_s12z_howto_table)
	    / sizeof (elf_s12z_howto_table[0]));
       i++)
    if (elf_s12z_howto_table[i].name != NULL
	&& strcasecmp (elf_s12z_howto_table[i].name, r_name) == 0)
      return &elf_s12z_howto_table[i];

  return NULL;
}

/* Set the howto pointer for an S12Z ELF reloc.  */

static bfd_boolean
s12z_info_to_howto_rel (bfd *abfd,
			  arelent *cache_ptr, Elf_Internal_Rela *dst)
{
  unsigned int  r_type = ELF32_R_TYPE (dst->r_info);

  if (r_type >= (unsigned int) R_S12Z_max)
    {
      /* xgettext:c-format */
      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
			  abfd, r_type);
      bfd_set_error (bfd_error_bad_value);
      return FALSE;
    }

  cache_ptr->howto = &elf_s12z_howto_table[r_type];
  return TRUE;
}

static bfd_boolean
s12z_elf_set_mach_from_flags (bfd *abfd)
{
  bfd_default_set_arch_mach (abfd, bfd_arch_s12z, 0);

  return TRUE;
}

#define ELF_ARCH		bfd_arch_s12z
#define ELF_MACHINE_CODE	EM_S12Z
#define ELF_MAXPAGESIZE		0x1000

#define TARGET_BIG_SYM		s12z_elf32_vec
#define TARGET_BIG_NAME		"elf32-s12z"

#define elf_info_to_howto			NULL
#define elf_info_to_howto_rel			s12z_info_to_howto_rel
#define elf_backend_object_p			s12z_elf_set_mach_from_flags

#include "elf32-target.h"
Commit	Line	Data
7b4ae824	1	/* Freescale S12Z-specific support for 32-bit ELF
b3adc24a	2	Copyright (C) 1999-2020 Free Software Foundation, Inc.
7b4ae824 JD	3	(Heavily copied from the D10V port by Martin Hunt (hunt@cygnus.com))
	4
	5	This file is part of BFD, the Binary File Descriptor library.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 3 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	20	MA 02110-1301, USA. */
	21
	22	#include "sysdep.h"
	23	#include "bfd.h"
	24	#include "bfdlink.h"
	25	#include "libbfd.h"
	26	#include "elf-bfd.h"
	27
	28	#include "elf/s12z.h"
	29
bb294208 AM	30	/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
	31	#define OCTETS_PER_BYTE(ABFD, SEC) 1
	32
7b4ae824 JD	33	/* Relocation functions. */
	34	static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
	35	(bfd *, bfd_reloc_code_real_type);
	36	static bfd_boolean s12z_info_to_howto_rel
	37	(bfd , arelent , Elf_Internal_Rela *);
	38
4e57b456 JD	39	static bfd_reloc_status_type
	40	opru18_reloc (bfd abfd, arelent reloc_entry, struct bfd_symbol *symbol,
	41	void data, asection input_section ATTRIBUTE_UNUSED,
	42	bfd output ATTRIBUTE_UNUSED, char *msg ATTRIBUTE_UNUSED)
	43	{
	44	/* This reloc is used for 18 bit General Operand Addressing Postbyte in the
	45	INST opru18 form. This is an 18 bit reloc, but the most significant bit
	46	is shifted one place to the left of where it would normally be. See
	47	Appendix A.4 of the S12Z reference manual. */
	48
61826503	49	bfd_size_type octets = (reloc_entry->address
bb294208	50	* OCTETS_PER_BYTE (abfd, input_section));
4e57b456 JD	51	bfd_vma result = bfd_get_24 (abfd, (unsigned char *) data + octets);
	52	bfd_vma val = bfd_asymbol_value (symbol);
	53
	54	/* Keep the wanted bits and discard the rest. */
	55	result &= 0xFA0000;
	56
	57	val += symbol->section->output_section->vma;
	58	val += symbol->section->output_offset;
	59
	60	/* The lowest 17 bits are copied verbatim. */
	61	result \|= val & 0x1FFFF;
	62
	63	/* The 18th bit is put into the 19th position. */
	64	result \|= (val & 0x020000) << 1;
	65
	66	bfd_put_24 (abfd, result, (unsigned char *) data + octets);
	67
	68	return bfd_reloc_ok;
	69	}
	70
	71
7b4ae824 JD	72	static bfd_reloc_status_type
	73	shift_addend_reloc (bfd abfd, arelent reloc_entry, struct bfd_symbol *symbol ATTRIBUTE_UNUSED,
	74	void data ATTRIBUTE_UNUSED, asection input_section ATTRIBUTE_UNUSED,
	75	bfd output ATTRIBUTE_UNUSED, char *msg ATTRIBUTE_UNUSED)
	76	{
	77	/* This is a really peculiar reloc, which is done for compatibility
	78	with the Freescale toolchain.
	79
	80	That toolchain appears to (ab)use the lowest 15 bits of the addend for
	81	the purpose of holding flags. The purpose of these flags are unknown.
	82	So in this function, when writing the bfd we left shift the addend by
	83	15, and when reading we right shift it by 15 (discarding the lower bits).
	84
	85	This allows the linker to work with object files generated by Freescale,
	86	as well as by Gas. */
	87
	88	if (abfd->is_linker_input)
	89	reloc_entry->addend >>= 15;
	90	else
	91	reloc_entry->addend <<= 15;
	92
	93	return bfd_reloc_continue;
	94	}
	95
	96	#define USE_REL 0
	97
	98	static reloc_howto_type elf_s12z_howto_table[] =
	99	{
	100	/* This reloc does nothing. */
	101	HOWTO (R_S12Z_NONE, /* type */
	102	0, /* rightshift */
	103	3, /* size (0 = byte, 1 = short, 2 = long) */
	104	0, /* bitsize */
	105	FALSE, /* pc_relative */
	106	0, /* bitpos */
	107	complain_overflow_dont,/* complain_on_overflow */
	108	bfd_elf_generic_reloc, /* special_function */
	109	"R_S12Z_NONE", /* name */
	110	FALSE, /* partial_inplace */
	111	0, /* src_mask */
	112	0, /* dst_mask */
	113	FALSE), /* pcrel_offset */
	114
	115	/* A 24 bit absolute relocation emitted by the OPR mode operands */
	116	HOWTO (R_S12Z_OPR, /* type */
	117	0, /* rightshift */
	118	5, /* size (0 = byte, 1 = short, 2 = long) */
	119	24, /* bitsize */
	120	FALSE, /* pc_relative */
	121	0, /* bitpos */
	122	complain_overflow_bitfield, /* complain_on_overflow */
	123	shift_addend_reloc,
	124	"R_S12Z_OPR", /* name */
	125	FALSE, /* partial_inplace */
d5dcaf1b	126	0x00ffffff, /* src_mask */
7b4ae824 JD	127	0x00ffffff, /* dst_mask */
	128	FALSE), /* pcrel_offset */
	129
	130	/* The purpose of this reloc is not known */
	131	HOWTO (R_S12Z_UKNWN_2, /* type */
	132	0, /* rightshift */
	133	3, /* size (0 = byte, 1 = short, 2 = long) */
	134	0, /* bitsize */
	135	FALSE, /* pc_relative */
	136	0, /* bitpos */
	137	complain_overflow_dont,/* complain_on_overflow */
	138	bfd_elf_generic_reloc, /* special_function */
	139	"R_S12Z_UKNWN_2", /* name */
	140	FALSE, /* partial_inplace */
	141	0, /* src_mask */
	142	0, /* dst_mask */
	143	FALSE), /* pcrel_offset */
	144
	145	/* A 15 bit PC-rel relocation */
	146	HOWTO (R_S12Z_PCREL_7_15, /* type */
	147	0, /* rightshift */
	148	1, /* size (0 = byte, 1 = short, 2 = long) */
	149	15, /* bitsize */
	150	TRUE, /* pc_relative */
	151	0, /* bitpos */
	152	complain_overflow_bitfield, /* complain_on_overflow */
	153	shift_addend_reloc,
	154	"R_S12Z_PCREL_7_15", /* name */
	155	FALSE, /* partial_inplace */
	156	0x00, /* src_mask */
	157	0x007fff, /* dst_mask */
	158	TRUE), /* pcrel_offset */
	159
	160	/* A 24 bit absolute relocation emitted by EXT24 mode operands */
	161	HOWTO (R_S12Z_EXT24, /* type */
	162	0, /* rightshift */
	163	5, /* size (0 = byte, 1 = short, 2 = long) */
	164	24, /* bitsize */
	165	FALSE, /* pc_relative */
	166	0, /* bitpos */
	167	complain_overflow_bitfield, /* complain_on_overflow */
	168	bfd_elf_generic_reloc, /* special_function */
	169	"R_S12Z_EXT24", /* name */
	170	FALSE, /* partial_inplace */
808325d2	171	0x00000000, /* src_mask */
7b4ae824 JD	172	0x00ffffff, /* dst_mask */
	173	FALSE), /* pcrel_offset */
	174
4e57b456 JD	175	/* An 18 bit absolute relocation */
4e57b456 JD	176	HOWTO (R_S12Z_EXT18, /* type */
7b4ae824	177	0, /* rightshift */
4e57b456 JD	178	5, /* size (0 = byte, 1 = short, 2 = long) */
4e57b456 JD	179	18, /* bitsize */
7b4ae824 JD	180	FALSE, /* pc_relative */
7b4ae824 JD	181	0, /* bitpos */
4e57b456 JD	182	complain_overflow_bitfield, /* complain_on_overflow */
	183	opru18_reloc, /* special_function */
	184	"R_S12Z_EXT18", /* name */
7b4ae824	185	FALSE, /* partial_inplace */
808325d2	186	0x00000000, /* src_mask */
4e57b456	187	0x0005ffff, /* dst_mask */
7b4ae824 JD	188	FALSE), /* pcrel_offset */
7b4ae824 JD	189
2849d19f JD	190	/* A 32 bit absolute relocation. This kind of relocation is
	191	schizophrenic - Although they appear in sections named .rela.debug.*
	192	in some sections they behave as RELA relocs, but in others they have
	193	an added of zero and behave as REL.
	194
	195	It is not recommended that new code emits this reloc. It is here
	196	only to support existing elf files generated by third party
	197	applications. */
	198
	199	HOWTO (R_S12Z_CW32, /* type */
	200	0, /* rightshift */
	201	2, /* size (0 = byte, 1 = short, 2 = long) */
	202	32, /* bitsize */
	203	FALSE, /* pc_relative */
	204	0, /* bitpos */
	205	complain_overflow_bitfield, /* complain_on_overflow */
	206	bfd_elf_generic_reloc, /* special_function */
	207	"R_S12Z_CW32", /* name */
	208	FALSE, /* partial_inplace */
	209	0xffffffff, /* src_mask */
	210	0xffffffff, /* dst_mask */
	211	FALSE), /* pcrel_offset */
	212
7b4ae824 JD	213	/* A 32 bit absolute relocation */
	214	HOWTO (R_S12Z_EXT32, /* type */
	215	0, /* rightshift */
	216	2, /* size (0 = byte, 1 = short, 2 = long) */
	217	32, /* bitsize */
	218	FALSE, /* pc_relative */
	219	0, /* bitpos */
	220	complain_overflow_bitfield, /* complain_on_overflow */
	221	bfd_elf_generic_reloc, /* special_function */
	222	"R_S12Z_EXT32", /* name */
	223	FALSE, /* partial_inplace */
808325d2	224	0x00000000, /* src_mask */
7b4ae824 JD	225	0xffffffff, /* dst_mask */
	226	FALSE), /* pcrel_offset */
	227	};
	228
	229	/* Map BFD reloc types to S12Z ELF reloc types. */
	230
	231	struct s12z_reloc_map
	232	{
	233	bfd_reloc_code_real_type bfd_reloc_val;
	234	unsigned char elf_reloc_val;
	235	};
	236
	237	static const struct s12z_reloc_map s12z_reloc_map[] =
	238	{
d5dcaf1b JD	239	/* bfd reloc val / / elf reloc val */
	240	{BFD_RELOC_NONE, R_S12Z_NONE},
	241	{BFD_RELOC_32, R_S12Z_EXT32},
	242	{BFD_RELOC_24, R_S12Z_EXT24},
	243	{BFD_RELOC_16_PCREL, R_S12Z_PCREL_7_15},
	244	{BFD_RELOC_S12Z_OPR, R_S12Z_OPR}
7b4ae824 JD	245	};
	246
	247	static reloc_howto_type *
	248	bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	249	bfd_reloc_code_real_type code)
	250	{
	251	unsigned int i;
	252
	253	for (i = 0;
	254	i < sizeof (s12z_reloc_map) / sizeof (struct s12z_reloc_map);
	255	i++)
	256	{
	257	if (s12z_reloc_map[i].bfd_reloc_val == code)
	258	{
	259	return &elf_s12z_howto_table[s12z_reloc_map[i].elf_reloc_val];
	260	}
	261	}
	262
	263	printf ("%s:%d Not found type %d\n", __FILE__, __LINE__, code);
	264
	265	return NULL;
	266	}
	267
	268	static reloc_howto_type *
	269	bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	270	const char *r_name)
	271	{
	272	unsigned int i;
	273
7b4ae824 JD	274	for (i = 0;
	275	i < (sizeof (elf_s12z_howto_table)
	276	/ sizeof (elf_s12z_howto_table[0]));
	277	i++)
	278	if (elf_s12z_howto_table[i].name != NULL
	279	&& strcasecmp (elf_s12z_howto_table[i].name, r_name) == 0)
	280	return &elf_s12z_howto_table[i];
	281
	282	return NULL;
	283	}
	284
	285	/* Set the howto pointer for an S12Z ELF reloc. */
	286
	287	static bfd_boolean
	288	s12z_info_to_howto_rel (bfd *abfd,
	289	arelent cache_ptr, Elf_Internal_Rela dst)
	290	{
	291	unsigned int r_type = ELF32_R_TYPE (dst->r_info);
	292
	293	if (r_type >= (unsigned int) R_S12Z_max)
	294	{
	295	/* xgettext:c-format */
	296	_bfd_error_handler (_("%pB: unsupported relocation type %#x"),
	297	abfd, r_type);
	298	bfd_set_error (bfd_error_bad_value);
	299	return FALSE;
	300	}
	301
	302	cache_ptr->howto = &elf_s12z_howto_table[r_type];
	303	return TRUE;
	304	}
	305
	306	static bfd_boolean
	307	s12z_elf_set_mach_from_flags (bfd *abfd)
	308	{
cd4d353f	309	bfd_default_set_arch_mach (abfd, bfd_arch_s12z, 0);
7b4ae824 JD	310
	311	return TRUE;
	312	}
	313
	314	#define ELF_ARCH bfd_arch_s12z
7b4ae824 JD	315	#define ELF_MACHINE_CODE EM_S12Z
	316	#define ELF_MAXPAGESIZE 0x1000
	317
	318	#define TARGET_BIG_SYM s12z_elf32_vec
	319	#define TARGET_BIG_NAME "elf32-s12z"
	320
	321	#define elf_info_to_howto NULL
	322	#define elf_info_to_howto_rel s12z_info_to_howto_rel
	323	#define elf_backend_object_p s12z_elf_set_mach_from_flags
7b4ae824 JD	324
7b4ae824 JD	325	#include "elf32-target.h"