[deliverable/binutils-gdb.git] / bfd / mach-o-aarch64.c

/* AArch-64 Mach-O support for BFD.
   Copyright (C) 2015-2019 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 "libiberty.h"
#include "mach-o.h"
#include "mach-o/arm64.h"

#define bfd_mach_o_object_p bfd_mach_o_arm64_object_p
#define bfd_mach_o_core_p bfd_mach_o_arm64_core_p
#define bfd_mach_o_mkobject bfd_mach_o_arm64_mkobject

#define bfd_mach_o_canonicalize_one_reloc \
  bfd_mach_o_arm64_canonicalize_one_reloc
#define bfd_mach_o_swap_reloc_out NULL

#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_arm64_bfd_reloc_type_lookup
#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_arm64_bfd_reloc_name_lookup

#define bfd_mach_o_print_thread NULL
#define bfd_mach_o_tgt_seg_table NULL
#define bfd_mach_o_section_type_valid_for_tgt NULL

static const bfd_target *
bfd_mach_o_arm64_object_p (bfd *abfd)
{
  return bfd_mach_o_header_p (abfd, 0, 0, BFD_MACH_O_CPU_TYPE_ARM64);
}

static const bfd_target *
bfd_mach_o_arm64_core_p (bfd *abfd)
{
  return bfd_mach_o_header_p (abfd, 0,
			      BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_ARM64);
}

static bfd_boolean
bfd_mach_o_arm64_mkobject (bfd *abfd)
{
  bfd_mach_o_data_struct *mdata;

  if (!bfd_mach_o_mkobject_init (abfd))
    return FALSE;

  mdata = bfd_mach_o_get_data (abfd);
  mdata->header.magic = BFD_MACH_O_MH_MAGIC;
  mdata->header.cputype = BFD_MACH_O_CPU_TYPE_ARM64;
  mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL;
  mdata->header.byteorder = BFD_ENDIAN_LITTLE;
  mdata->header.version = 1;

  return TRUE;
}

/* In case we're on a 32-bit machine, construct a 64-bit "-1" value.  */
#define MINUS_ONE (~ (bfd_vma) 0)

static reloc_howto_type arm64_howto_table[]=
{
  /* 0 */
  HOWTO (BFD_RELOC_64, 0, 4, 64, FALSE, 0,
	 complain_overflow_bitfield,
	 NULL, "64",
	 FALSE, MINUS_ONE, MINUS_ONE, FALSE),
  HOWTO (BFD_RELOC_32, 0, 2, 32, FALSE, 0,
	 complain_overflow_bitfield,
	 NULL, "32",
	 FALSE, 0xffffffff, 0xffffffff, FALSE),
  HOWTO (BFD_RELOC_16, 0, 1, 16, FALSE, 0,
	 complain_overflow_bitfield,
	 NULL, "16",
	 FALSE, 0xffff, 0xffff, FALSE),
  HOWTO (BFD_RELOC_8, 0, 0, 8, FALSE, 0,
	 complain_overflow_bitfield,
	 NULL, "8",
	 FALSE, 0xff, 0xff, FALSE),
  /* 4 */
  HOWTO (BFD_RELOC_64_PCREL, 0, 4, 64, TRUE, 0,
	 complain_overflow_bitfield,
	 NULL, "DISP64",
	 FALSE, MINUS_ONE, MINUS_ONE, TRUE),
  HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
	 complain_overflow_bitfield,
	 NULL, "DISP32",
	 FALSE, 0xffffffff, 0xffffffff, TRUE),
  HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
	 complain_overflow_bitfield,
	 NULL, "DISP16",
	 FALSE, 0xffff, 0xffff, TRUE),
  HOWTO (BFD_RELOC_AARCH64_CALL26, 0, 2, 26, TRUE, 0,
	 complain_overflow_bitfield,
	 NULL, "BRANCH26",
	 FALSE, 0x03ffffff, 0x03ffffff, TRUE),
  /* 8 */
  HOWTO (BFD_RELOC_AARCH64_ADR_HI21_PCREL, 12, 2, 21, TRUE, 0,
	 complain_overflow_signed,
	 NULL, "PAGE21",
	 FALSE, 0x1fffff, 0x1fffff, TRUE),
  HOWTO (BFD_RELOC_AARCH64_LDST16_LO12, 1, 2, 12, TRUE, 0,
	 complain_overflow_signed,
	 NULL, "PGOFF12",
	 FALSE, 0xffe, 0xffe, TRUE),
  HOWTO (BFD_RELOC_MACH_O_ARM64_ADDEND, 0, 2, 32, FALSE, 0,
	 complain_overflow_signed,
	 NULL, "ADDEND",
	 FALSE, 0xffffffff, 0xffffffff, FALSE),
  HOWTO (BFD_RELOC_MACH_O_SUBTRACTOR32, 0, 2, 32, FALSE, 0,
	 complain_overflow_bitfield,
	 NULL, "SUBTRACTOR32",
	 FALSE, 0xffffffff, 0xffffffff, FALSE),
  /* 12 */
  HOWTO (BFD_RELOC_MACH_O_SUBTRACTOR64, 0, 4, 64, FALSE, 0,
	 complain_overflow_bitfield,
	 NULL, "SUBTRACTOR64",
	 FALSE, MINUS_ONE, MINUS_ONE, FALSE),
  HOWTO (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21, 12, 2, 21, TRUE, 0,
	 complain_overflow_signed,
	 NULL, "GOT_LD_PG21",
	 FALSE, 0x1fffff, 0x1fffff, TRUE),
  HOWTO (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12, 1, 2, 12, TRUE, 0,
	 complain_overflow_signed,
	 NULL, "GOT_LD_PGOFF12",
	 FALSE, 0xffe, 0xffe, TRUE),
  HOWTO (BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT, 0, 2, 32, TRUE, 0,
	 complain_overflow_bitfield,
	 NULL, "PTR_TO_GOT",
	 FALSE, 0xffffffff, 0xffffffff, TRUE),
};

static bfd_boolean
bfd_mach_o_arm64_canonicalize_one_reloc (bfd *       abfd,
					 struct mach_o_reloc_info_external * raw,
					 arelent *   res,
					 asymbol **  syms,
					 arelent *   res_base ATTRIBUTE_UNUSED)
{
  bfd_mach_o_reloc_info reloc;

  res->address = bfd_get_32 (abfd, raw->r_address);
  if (res->address & BFD_MACH_O_SR_SCATTERED)
    {
      /* Only non-scattered relocations.  */
      return FALSE;
    }

  /* The value and info fields have to be extracted dependent on target
     endian-ness.  */
  bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum);

  if (reloc.r_type == BFD_MACH_O_ARM64_RELOC_ADDEND)
    {
      if (reloc.r_length == 2 && reloc.r_pcrel == 0)
	{
	  res->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
	  res->addend = reloc.r_value;
	  res->howto = &arm64_howto_table[10];
	  return TRUE;
	}
      return FALSE;
    }

  if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, &reloc, res, syms))
    return FALSE;

  switch (reloc.r_type)
    {
    case BFD_MACH_O_ARM64_RELOC_UNSIGNED:
      switch ((reloc.r_length << 1) | reloc.r_pcrel)
	{
	case 0: /* len = 0, pcrel = 0  */
	  res->howto = &arm64_howto_table[3];
	  return TRUE;
	case 2: /* len = 1, pcrel = 0  */
	  res->howto = &arm64_howto_table[2];
	  return TRUE;
	case 3: /* len = 1, pcrel = 1  */
	  res->howto = &arm64_howto_table[6];
	  return TRUE;
	case 4: /* len = 2, pcrel = 0  */
	  res->howto = &arm64_howto_table[1];
	  return TRUE;
	case 5: /* len = 2, pcrel = 1  */
	  res->howto = &arm64_howto_table[5];
	  return TRUE;
	case 6: /* len = 3, pcrel = 0  */
	  res->howto = &arm64_howto_table[0];
	  return TRUE;
	case 7: /* len = 3, pcrel = 1  */
	  res->howto = &arm64_howto_table[4];
	  return TRUE;
	default:
	  return FALSE;
	}
      break;
    case BFD_MACH_O_ARM64_RELOC_SUBTRACTOR:
      if (reloc.r_pcrel)
	return FALSE;
      switch (reloc.r_length)
	{
	case 2:
	  res->howto = &arm64_howto_table[11];
	  return TRUE;
	case 3:
	  res->howto = &arm64_howto_table[12];
	  return TRUE;
	default:
	  return FALSE;
	}
      break;
    case BFD_MACH_O_ARM64_RELOC_BRANCH26:
      if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	{
	  res->howto = &arm64_howto_table[7];
	  return TRUE;
	}
      break;
    case BFD_MACH_O_ARM64_RELOC_PAGE21:
      if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	{
	  res->howto = &arm64_howto_table[8];
	  return TRUE;
	}
      break;
    case BFD_MACH_O_ARM64_RELOC_PAGEOFF12:
      if (reloc.r_length == 2 && reloc.r_pcrel == 0)
	{
	  res->howto = &arm64_howto_table[9];
	  return TRUE;
	}
      break;
    case BFD_MACH_O_ARM64_RELOC_GOT_LOAD_PAGE21:
      if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	{
	  res->howto = &arm64_howto_table[13];
	  return TRUE;
	}
      break;
    case BFD_MACH_O_ARM64_RELOC_GOT_LOAD_PAGEOFF12:
      if (reloc.r_length == 2 && reloc.r_pcrel == 0)
	{
	  res->howto = &arm64_howto_table[14];
	  return TRUE;
	}
      break;
    case BFD_MACH_O_ARM64_RELOC_POINTER_TO_GOT:
      if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	{
	  res->howto = &arm64_howto_table[15];
	  return TRUE;
	}
      break;
    default:
      break;
    }
  return FALSE;
}

static reloc_howto_type *
bfd_mach_o_arm64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
					bfd_reloc_code_real_type code)
{
  unsigned int i;

  for (i = 0;
       i < sizeof (arm64_howto_table) / sizeof (*arm64_howto_table);
       i++)
    if (code == arm64_howto_table[i].type)
      return &arm64_howto_table[i];
  return NULL;
}

static reloc_howto_type *
bfd_mach_o_arm64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
				      const char *name ATTRIBUTE_UNUSED)
{
  return NULL;
}

#define TARGET_NAME		aarch64_mach_o_vec
#define TARGET_STRING		"mach-o-arm64"
#define TARGET_ARCHITECTURE	bfd_arch_aarch64
#define TARGET_PAGESIZE		4096
#define TARGET_BIG_ENDIAN	0
#define TARGET_ARCHIVE		0
#define TARGET_PRIORITY		0
#include "mach-o-target.c"

#undef TARGET_NAME
#undef TARGET_STRING
#undef TARGET_ARCHIVE
#undef TARGET_PRIORITY
Commit	Line	Data
f075eb5e	1	/* AArch-64 Mach-O support for BFD.
82704155	2	Copyright (C) 2015-2019 Free Software Foundation, Inc.
f075eb5e TG	3
	4	This file is part of BFD, the Binary File Descriptor library.
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 3 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	19	MA 02110-1301, USA. */
	20
	21	#include "sysdep.h"
f075eb5e TG	22	#include "bfd.h"
	23	#include "libbfd.h"
	24	#include "libiberty.h"
2d5d5a8f	25	#include "mach-o.h"
f075eb5e TG	26	#include "mach-o/arm64.h"
	27
	28	#define bfd_mach_o_object_p bfd_mach_o_arm64_object_p
	29	#define bfd_mach_o_core_p bfd_mach_o_arm64_core_p
	30	#define bfd_mach_o_mkobject bfd_mach_o_arm64_mkobject
	31
	32	#define bfd_mach_o_canonicalize_one_reloc \
	33	bfd_mach_o_arm64_canonicalize_one_reloc
	34	#define bfd_mach_o_swap_reloc_out NULL
	35
	36	#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_arm64_bfd_reloc_type_lookup
	37	#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_arm64_bfd_reloc_name_lookup
	38
	39	#define bfd_mach_o_print_thread NULL
	40	#define bfd_mach_o_tgt_seg_table NULL
	41	#define bfd_mach_o_section_type_valid_for_tgt NULL
	42
	43	static const bfd_target *
	44	bfd_mach_o_arm64_object_p (bfd *abfd)
	45	{
	46	return bfd_mach_o_header_p (abfd, 0, 0, BFD_MACH_O_CPU_TYPE_ARM64);
	47	}
	48
	49	static const bfd_target *
	50	bfd_mach_o_arm64_core_p (bfd *abfd)
	51	{
	52	return bfd_mach_o_header_p (abfd, 0,
07d6d2b8	53	BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_ARM64);
f075eb5e TG	54	}
	55
	56	static bfd_boolean
	57	bfd_mach_o_arm64_mkobject (bfd *abfd)
	58	{
	59	bfd_mach_o_data_struct *mdata;
	60
	61	if (!bfd_mach_o_mkobject_init (abfd))
	62	return FALSE;
	63
	64	mdata = bfd_mach_o_get_data (abfd);
	65	mdata->header.magic = BFD_MACH_O_MH_MAGIC;
	66	mdata->header.cputype = BFD_MACH_O_CPU_TYPE_ARM64;
	67	mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL;
	68	mdata->header.byteorder = BFD_ENDIAN_LITTLE;
	69	mdata->header.version = 1;
	70
	71	return TRUE;
	72	}
	73
	74	/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
	75	#define MINUS_ONE (~ (bfd_vma) 0)
	76
	77	static reloc_howto_type arm64_howto_table[]=
	78	{
	79	/* 0 */
	80	HOWTO (BFD_RELOC_64, 0, 4, 64, FALSE, 0,
	81	complain_overflow_bitfield,
	82	NULL, "64",
	83	FALSE, MINUS_ONE, MINUS_ONE, FALSE),
	84	HOWTO (BFD_RELOC_32, 0, 2, 32, FALSE, 0,
	85	complain_overflow_bitfield,
	86	NULL, "32",
	87	FALSE, 0xffffffff, 0xffffffff, FALSE),
	88	HOWTO (BFD_RELOC_16, 0, 1, 16, FALSE, 0,
	89	complain_overflow_bitfield,
	90	NULL, "16",
	91	FALSE, 0xffff, 0xffff, FALSE),
	92	HOWTO (BFD_RELOC_8, 0, 0, 8, FALSE, 0,
	93	complain_overflow_bitfield,
	94	NULL, "8",
	95	FALSE, 0xff, 0xff, FALSE),
	96	/* 4 */
	97	HOWTO (BFD_RELOC_64_PCREL, 0, 4, 64, TRUE, 0,
	98	complain_overflow_bitfield,
	99	NULL, "DISP64",
	100	FALSE, MINUS_ONE, MINUS_ONE, TRUE),
	101	HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
	102	complain_overflow_bitfield,
	103	NULL, "DISP32",
	104	FALSE, 0xffffffff, 0xffffffff, TRUE),
	105	HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
	106	complain_overflow_bitfield,
	107	NULL, "DISP16",
	108	FALSE, 0xffff, 0xffff, TRUE),
	109	HOWTO (BFD_RELOC_AARCH64_CALL26, 0, 2, 26, TRUE, 0,
	110	complain_overflow_bitfield,
	111	NULL, "BRANCH26",
	112	FALSE, 0x03ffffff, 0x03ffffff, TRUE),
	113	/* 8 */
	114	HOWTO (BFD_RELOC_AARCH64_ADR_HI21_PCREL, 12, 2, 21, TRUE, 0,
	115	complain_overflow_signed,
	116	NULL, "PAGE21",
	117	FALSE, 0x1fffff, 0x1fffff, TRUE),
118	HOWTO (BFD_RELOC_AARCH64_LDST16_LO12, 1, 2, 12, TRUE, 0,
119	complain_overflow_signed,
120	NULL, "PGOFF12",
121	FALSE, 0xffe, 0xffe, TRUE),
122	HOWTO (BFD_RELOC_MACH_O_ARM64_ADDEND, 0, 2, 32, FALSE, 0,
123	complain_overflow_signed,
124	NULL, "ADDEND",
125	FALSE, 0xffffffff, 0xffffffff, FALSE),
126	HOWTO (BFD_RELOC_MACH_O_SUBTRACTOR32, 0, 2, 32, FALSE, 0,
127	complain_overflow_bitfield,
128	NULL, "SUBTRACTOR32",
129	FALSE, 0xffffffff, 0xffffffff, FALSE),
130	/* 12 */
131	HOWTO (BFD_RELOC_MACH_O_SUBTRACTOR64, 0, 4, 64, FALSE, 0,
132	complain_overflow_bitfield,
133	NULL, "SUBTRACTOR64",
134	FALSE, MINUS_ONE, MINUS_ONE, FALSE),
135	HOWTO (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21, 12, 2, 21, TRUE, 0,
136	complain_overflow_signed,
137	NULL, "GOT_LD_PG21",
138	FALSE, 0x1fffff, 0x1fffff, TRUE),
139	HOWTO (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12, 1, 2, 12, TRUE, 0,
140	complain_overflow_signed,
141	NULL, "GOT_LD_PGOFF12",
142	FALSE, 0xffe, 0xffe, TRUE),
143	HOWTO (BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT, 0, 2, 32, TRUE, 0,
144	complain_overflow_bitfield,
145	NULL, "PTR_TO_GOT",
146	FALSE, 0xffffffff, 0xffffffff, TRUE),
147	};
148
149	static bfd_boolean
ca4cf9b9 NC	150	bfd_mach_o_arm64_canonicalize_one_reloc (bfd * abfd,
	151	struct mach_o_reloc_info_external * raw,
	152	arelent * res,
	153	asymbol ** syms,
	154	arelent * res_base ATTRIBUTE_UNUSED)
f075eb5e TG	155	{
	156	bfd_mach_o_reloc_info reloc;
	157
	158	res->address = bfd_get_32 (abfd, raw->r_address);
	159	if (res->address & BFD_MACH_O_SR_SCATTERED)
	160	{
	161	/* Only non-scattered relocations. */
	162	return FALSE;
	163	}
	164
	165	/* The value and info fields have to be extracted dependent on target
	166	endian-ness. */
	167	bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum);
	168
	169	if (reloc.r_type == BFD_MACH_O_ARM64_RELOC_ADDEND)
	170	{
	171	if (reloc.r_length == 2 && reloc.r_pcrel == 0)
	172	{
	173	res->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
	174	res->addend = reloc.r_value;
	175	res->howto = &arm64_howto_table[10];
	176	return TRUE;
	177	}
	178	return FALSE;
	179	}
	180
	181	if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, &reloc, res, syms))
	182	return FALSE;
	183
	184	switch (reloc.r_type)
	185	{
	186	case BFD_MACH_O_ARM64_RELOC_UNSIGNED:
	187	switch ((reloc.r_length << 1) \| reloc.r_pcrel)
	188	{
	189	case 0: /* len = 0, pcrel = 0 */
	190	res->howto = &arm64_howto_table[3];
	191	return TRUE;
	192	case 2: /* len = 1, pcrel = 0 */
	193	res->howto = &arm64_howto_table[2];
	194	return TRUE;
	195	case 3: /* len = 1, pcrel = 1 */
	196	res->howto = &arm64_howto_table[6];
	197	return TRUE;
	198	case 4: /* len = 2, pcrel = 0 */
	199	res->howto = &arm64_howto_table[1];
	200	return TRUE;
	201	case 5: /* len = 2, pcrel = 1 */
	202	res->howto = &arm64_howto_table[5];
	203	return TRUE;
	204	case 6: /* len = 3, pcrel = 0 */
	205	res->howto = &arm64_howto_table[0];
	206	return TRUE;
	207	case 7: /* len = 3, pcrel = 1 */
	208	res->howto = &arm64_howto_table[4];
	209	return TRUE;
	210	default:
	211	return FALSE;
	212	}
	213	break;
	214	case BFD_MACH_O_ARM64_RELOC_SUBTRACTOR:
	215	if (reloc.r_pcrel)
07d6d2b8	216	return FALSE;
f075eb5e	217	switch (reloc.r_length)
07d6d2b8 AM	218	{
	219	case 2:
	220	res->howto = &arm64_howto_table[11];
	221	return TRUE;
	222	case 3:
	223	res->howto = &arm64_howto_table[12];
	224	return TRUE;
	225	default:
	226	return FALSE;
	227	}
f075eb5e TG	228	break;
	229	case BFD_MACH_O_ARM64_RELOC_BRANCH26:
	230	if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	231	{
	232	res->howto = &arm64_howto_table[7];
	233	return TRUE;
	234	}
	235	break;
	236	case BFD_MACH_O_ARM64_RELOC_PAGE21:
	237	if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	238	{
	239	res->howto = &arm64_howto_table[8];
	240	return TRUE;
	241	}
	242	break;
	243	case BFD_MACH_O_ARM64_RELOC_PAGEOFF12:
	244	if (reloc.r_length == 2 && reloc.r_pcrel == 0)
	245	{
	246	res->howto = &arm64_howto_table[9];
	247	return TRUE;
	248	}
	249	break;
	250	case BFD_MACH_O_ARM64_RELOC_GOT_LOAD_PAGE21:
	251	if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	252	{
	253	res->howto = &arm64_howto_table[13];
	254	return TRUE;
	255	}
	256	break;
	257	case BFD_MACH_O_ARM64_RELOC_GOT_LOAD_PAGEOFF12:
	258	if (reloc.r_length == 2 && reloc.r_pcrel == 0)
	259	{
	260	res->howto = &arm64_howto_table[14];
	261	return TRUE;
	262	}
	263	break;
	264	case BFD_MACH_O_ARM64_RELOC_POINTER_TO_GOT:
	265	if (reloc.r_length == 2 && reloc.r_pcrel == 1)
	266	{
	267	res->howto = &arm64_howto_table[15];
	268	return TRUE;
	269	}
	270	break;
	271	default:
	272	break;
	273	}
	274	return FALSE;
	275	}
	276
	277	static reloc_howto_type *
	278	bfd_mach_o_arm64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	279	bfd_reloc_code_real_type code)
	280	{
	281	unsigned int i;
	282
	283	for (i = 0;
	284	i < sizeof (arm64_howto_table) / sizeof (*arm64_howto_table);
	285	i++)
	286	if (code == arm64_howto_table[i].type)
	287	return &arm64_howto_table[i];
	288	return NULL;
	289	}
	290
	291	static reloc_howto_type *
292	bfd_mach_o_arm64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
293	const char *name ATTRIBUTE_UNUSED)
294	{
295	return NULL;
296	}
297
07d6d2b8 AM	298	#define TARGET_NAME aarch64_mach_o_vec
07d6d2b8 AM	299	#define TARGET_STRING "mach-o-arm64"
f075eb5e TG	300	#define TARGET_ARCHITECTURE bfd_arch_aarch64
f075eb5e TG	301	#define TARGET_PAGESIZE 4096
07d6d2b8 AM	302	#define TARGET_BIG_ENDIAN 0
07d6d2b8 AM	303	#define TARGET_ARCHIVE 0
f075eb5e TG	304	#define TARGET_PRIORITY 0
	305	#include "mach-o-target.c"
	306
	307	#undef TARGET_NAME
	308	#undef TARGET_STRING
	309	#undef TARGET_ARCHIVE
	310	#undef TARGET_PRIORITY