From f075eb5e6b0dd850304f78cf4d5c94df7b44c7a3 Mon Sep 17 00:00:00 2001
From: Tristan Gingold <gingold@adacore.com>
Date: Fri, 20 Nov 2015 11:33:33 +0100
Subject: [PATCH] binutils: add support for arm-*-darwin and aarch64-*-darwin.

Currently only in bfd and binutils.

ChangeLog/
	* configure.ac: Add aarch64-*-darwin* and arm-*-darwin*.
	* configure: Regenerate.

bfd/ChangeLog/
	* targets.c (aarch64_mach_o_vec, arm_mach_o_vec): Declare.
	(_bfd_target_vector): Add new vectors.
	* reloc.c (BFD_RELOC_MACH_O_SUBTRACTOR32)
	(BFD_RELOC_MACH_O_SUBTRACTOR64, BFD_RELOC_MACH_O_ARM64_ADDEND)
	(BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21)
	(BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12)
	(BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT): New relocations.
	(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32)
	(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64): Remove.
	* mach-o-x86-64.c (bfd_mach_o_x86_64_swap_reloc_out): Change
	name of subtractor relocations.
	* config.bfd: Handle aarch64-*-darwin*, arm-*-darwin*.
	* Makefile.am (BFD32_BACKENDS): Add mach-o-arm.lo.
	(BFD32_BACKENDS_CFILES): Add mach-o-arm.c.
	(BFD64_BACKENDS): Add mach-o-aarch64.lo.
	(BFD64_BACKENDS_CFILES): Add mach-o-aarch64.c.
	* configure.ac: Handle aarch64_mach_o_vec and arm_mach_o_vec.
	* mach-o-aarch64.c: New file.
	* mach-o-arm.c: New file.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* configure: Regenerate.
	* libbfd.h: Regenerate.
---
 ChangeLog            |   5 +
 bfd/ChangeLog        |  26 ++++
 bfd/Makefile.am      |   4 +
 bfd/Makefile.in      |   6 +
 bfd/bfd-in2.h        |  24 +++-
 bfd/config.bfd       |  11 ++
 bfd/configure        |   2 +
 bfd/configure.ac     |   2 +
 bfd/libbfd.h         |   8 +-
 bfd/mach-o-aarch64.c | 308 ++++++++++++++++++++++++++++++++++++++++
 bfd/mach-o-arm.c     | 326 +++++++++++++++++++++++++++++++++++++++++++
 bfd/mach-o-x86-64.c  |   4 +-
 bfd/reloc.c          |  34 +++--
 bfd/targets.c        |   4 +
 configure            |   8 ++
 configure.ac         |   8 ++
 16 files changed, 762 insertions(+), 18 deletions(-)
 create mode 100644 bfd/mach-o-aarch64.c
 create mode 100644 bfd/mach-o-arm.c

diff --git a/ChangeLog b/ChangeLog
index 514c8739b6..71d3b12604 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2015-11-20  Tristan Gingold  <gingold@adacore.com>
+
+	* configure.ac: Add aarch64-*-darwin* and arm-*-darwin*.
+	* configure: Regenerate.
+
 2015-10-21  Nick Clifton  <nickc@redhat.com>
 
 	PR gas/19109
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 4f70523431..5111d62d88 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,29 @@
+2015-11-20  Tristan Gingold  <gingold@adacore.com>
+
+	* targets.c (aarch64_mach_o_vec, arm_mach_o_vec): Declare.
+	(_bfd_target_vector): Add new vectors.
+	* reloc.c (BFD_RELOC_MACH_O_SUBTRACTOR32)
+	(BFD_RELOC_MACH_O_SUBTRACTOR64, BFD_RELOC_MACH_O_ARM64_ADDEND)
+	(BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21)
+	(BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12)
+	(BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT): New relocations.
+	(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32)
+	(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64): Remove.
+	* mach-o-x86-64.c (bfd_mach_o_x86_64_swap_reloc_out): Change
+	name of subtractor relocations.
+	* config.bfd: Handle aarch64-*-darwin*, arm-*-darwin*.
+	* Makefile.am (BFD32_BACKENDS): Add mach-o-arm.lo.
+	(BFD32_BACKENDS_CFILES): Add mach-o-arm.c.
+	(BFD64_BACKENDS): Add mach-o-aarch64.lo.
+	(BFD64_BACKENDS_CFILES): Add mach-o-aarch64.c.
+	* configure.ac: Handle aarch64_mach_o_vec and arm_mach_o_vec.
+	* mach-o-aarch64.c: New file.
+	* mach-o-arm.c: New file.
+	* Makefile.in: Regenerate.
+	* bfd-in2.h: Regenerate.
+	* configure: Regenerate.
+	* libbfd.h: Regenerate.
+
 2015-11-20  David Bridgham  <dab@froghouse.org>
 
 	* pdp11.c (TARGET_PAGE_SIZE): Set to 256 to match definition in
diff --git a/bfd/Makefile.am b/bfd/Makefile.am
index bf7305719e..cdfed8f56f 100644
--- a/bfd/Makefile.am
+++ b/bfd/Makefile.am
@@ -408,6 +408,7 @@ BFD32_BACKENDS = \
 	m88kopenbsd.lo \
 	mach-o.lo \
 	mach-o-i386.lo \
+	mach-o-arm.lo \
 	mipsbsd.lo \
 	newsos3.lo \
 	nlm.lo \
@@ -599,6 +600,7 @@ BFD32_BACKENDS_CFILES = \
 	m88kopenbsd.c \
 	mach-o.c \
 	mach-o-i386.c \
+	mach-o-arm.c \
 	mipsbsd.c \
 	newsos3.c \
 	nlm.c \
@@ -681,6 +683,7 @@ BFD64_BACKENDS = \
 	elfn32-mips.lo \
 	elfxx-ia64.lo \
 	elfxx-mips.lo \
+	mach-o-aarch64.lo \
 	mach-o-x86-64.lo \
 	mmo.lo \
 	nlm32-alpha.lo \
@@ -719,6 +722,7 @@ BFD64_BACKENDS_CFILES = \
 	elfxx-aarch64.c \
 	elfxx-ia64.c \
 	elfxx-mips.c \
+	mach-o-aarch64.c \
 	mach-o-x86-64.c \
 	mmo.c \
 	nlm32-alpha.c \
diff --git a/bfd/Makefile.in b/bfd/Makefile.in
index 9fd0d683fb..6cf4b70374 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -712,6 +712,7 @@ BFD32_BACKENDS = \
 	m88kopenbsd.lo \
 	mach-o.lo \
 	mach-o-i386.lo \
+	mach-o-arm.lo \
 	mipsbsd.lo \
 	newsos3.lo \
 	nlm.lo \
@@ -903,6 +904,7 @@ BFD32_BACKENDS_CFILES = \
 	m88kopenbsd.c \
 	mach-o.c \
 	mach-o-i386.c \
+	mach-o-arm.c \
 	mipsbsd.c \
 	newsos3.c \
 	nlm.c \
@@ -986,6 +988,7 @@ BFD64_BACKENDS = \
 	elfn32-mips.lo \
 	elfxx-ia64.lo \
 	elfxx-mips.lo \
+	mach-o-aarch64.lo \
 	mach-o-x86-64.lo \
 	mmo.lo \
 	nlm32-alpha.lo \
@@ -1024,6 +1027,7 @@ BFD64_BACKENDS_CFILES = \
 	elfxx-aarch64.c \
 	elfxx-ia64.c \
 	elfxx-mips.c \
+	mach-o-aarch64.c \
 	mach-o-x86-64.c \
 	mmo.c \
 	nlm32-alpha.c \
@@ -1538,6 +1542,8 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m68knetbsd.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m88kmach3.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m88kopenbsd.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mach-o-aarch64.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mach-o-arm.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mach-o-i386.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mach-o-x86-64.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mach-o.Plo@am__quote@
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 3780ba2c95..db54efec78 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -5575,6 +5575,12 @@ BFD_RELOC_MACH_O_PAIR.  */
 /* Pair of relocation.  Contains the first symbol.  */
   BFD_RELOC_MACH_O_PAIR,
 
+/* Symbol will be substracted.  Must be followed by a BFD_RELOC_32.  */
+  BFD_RELOC_MACH_O_SUBTRACTOR32,
+
+/* Symbol will be substracted.  Must be followed by a BFD_RELOC_64.  */
+  BFD_RELOC_MACH_O_SUBTRACTOR64,
+
 /* PCREL relocations.  They are marked as branch to create PLT entry if
 required.  */
   BFD_RELOC_MACH_O_X86_64_BRANCH32,
@@ -5587,12 +5593,6 @@ required.  */
 the linker could optimize the movq to a leaq if possible.  */
   BFD_RELOC_MACH_O_X86_64_GOT_LOAD,
 
-/* Symbol will be substracted.  Must be followed by a BFD_RELOC_64.  */
-  BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32,
-
-/* Symbol will be substracted.  Must be followed by a BFD_RELOC_64.  */
-  BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64,
-
 /* Same as BFD_RELOC_32_PCREL but with an implicit -1 addend.  */
   BFD_RELOC_MACH_O_X86_64_PCREL32_1,
 
@@ -5602,6 +5602,18 @@ the linker could optimize the movq to a leaq if possible.  */
 /* Same as BFD_RELOC_32_PCREL but with an implicit -4 addend.  */
   BFD_RELOC_MACH_O_X86_64_PCREL32_4,
 
+/* Addend for PAGE or PAGEOFF.  */
+  BFD_RELOC_MACH_O_ARM64_ADDEND,
+
+/* Relative offset to page of GOT slot.  */
+  BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21,
+
+/* Relative offset within page of GOT slot.  */
+  BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12,
+
+/* Address of a GOT entry.  */
+  BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT,
+
 /* This is a 32 bit reloc for the microblaze that stores the
 low 16 bits of a value  */
   BFD_RELOC_MICROBLAZE_32_LO,
diff --git a/bfd/config.bfd b/bfd/config.bfd
index c5688cb067..462a00dc39 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -169,6 +169,12 @@ case "${targ}" in
 
 # START OF targmatch.h
 #ifdef BFD64
+  aarch64-*-darwin*)
+    targ_defvec=aarch64_mach_o_vec
+    targ_selvecs="arm_mach_o_vec mach_o_le_vec mach_o_be_vec mach_o_fat_vec"
+    targ_archs="$targ_archs bfd_i386_arch bfd_powerpc_arch bfd_rs6000_arch"
+    want64=true
+    ;;
   aarch64-*-elf)
     targ_defvec=aarch64_elf64_le_vec
     targ_selvecs="aarch64_elf64_be_vec aarch64_elf32_le_vec aarch64_elf32_be_vec arm_elf32_le_vec arm_elf32_be_vec"
@@ -273,6 +279,11 @@ case "${targ}" in
     targ_selvecs=arc_elf32_be_vec
     ;;
 
+  arm-*-darwin*)
+    targ_defvec=arm_mach_o_vec
+    targ_selvecs="mach_o_le_vec mach_o_be_vec mach_o_fat_vec"
+    targ_archs="$targ_archs bfd_i386_arch bfd_powerpc_arch bfd_rs6000_arch"
+    ;;
   arm-*-nacl*)
     targ_defvec=arm_elf32_nacl_le_vec
     targ_selvecs="arm_elf32_nacl_be_vec i386_elf32_nacl_vec"
diff --git a/bfd/configure b/bfd/configure
index 9fe15f67c0..c8cdcc5268 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -15253,6 +15253,7 @@ do
     aarch64_elf64_be_cloudabi_vec) tb="$tb elf64-aarch64.lo elfxx-aarch64.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
     aarch64_elf64_le_vec)	   tb="$tb elf64-aarch64.lo elfxx-aarch64.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
     aarch64_elf64_le_cloudabi_vec) tb="$tb elf64-aarch64.lo elfxx-aarch64.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
+    aarch64_mach_o_vec)		 tb="$tb mach-o-aarch64.lo"; target_size=64 ;;
     alpha_ecoff_le_vec)		 tb="$tb coff-alpha.lo ecoff.lo $ecoff"; target_size=64 ;;
     alpha_elf64_vec)		 tb="$tb elf64-alpha.lo elf64.lo $elf"; target_size=64 ;;
     alpha_elf64_fbsd_vec)	 tb="$tb elf64-alpha.lo elf64.lo $elf"; target_size=64 ;;
@@ -15292,6 +15293,7 @@ do
     arm_pei_epoc_le_vec)	 tb="$tb epoc-pei-arm.lo peigen.lo $coff" ;;
     arm_pei_wince_be_vec)	 tb="$tb pei-arm-wince.lo pei-arm.lo peigen.lo $coff" ;;
     arm_pei_wince_le_vec)	 tb="$tb pei-arm-wince.lo pei-arm.lo peigen.lo $coff" ;;
+    arm_mach_o_vec)		 tb="$tb mach-o-arm.lo" ;;
     avr_elf32_vec)		 tb="$tb elf32-avr.lo elf32.lo $elf" ;;
     bfin_elf32_vec)		 tb="$tb elf32-bfin.lo elf32.lo $elf" ;;
     bfin_elf32_fdpic_vec)	 tb="$tb elf32-bfin.lo elf32.lo $elf" ;;
diff --git a/bfd/configure.ac b/bfd/configure.ac
index 6f5e85f3a6..bf76fb14f6 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -699,6 +699,7 @@ do
     aarch64_elf64_be_cloudabi_vec) tb="$tb elf64-aarch64.lo elfxx-aarch64.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
     aarch64_elf64_le_vec)	   tb="$tb elf64-aarch64.lo elfxx-aarch64.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
     aarch64_elf64_le_cloudabi_vec) tb="$tb elf64-aarch64.lo elfxx-aarch64.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
+    aarch64_mach_o_vec)		 tb="$tb mach-o-aarch64.lo"; target_size=64 ;;
     alpha_ecoff_le_vec)		 tb="$tb coff-alpha.lo ecoff.lo $ecoff"; target_size=64 ;;
     alpha_elf64_vec)		 tb="$tb elf64-alpha.lo elf64.lo $elf"; target_size=64 ;;
     alpha_elf64_fbsd_vec)	 tb="$tb elf64-alpha.lo elf64.lo $elf"; target_size=64 ;;
@@ -738,6 +739,7 @@ do
     arm_pei_epoc_le_vec)	 tb="$tb epoc-pei-arm.lo peigen.lo $coff" ;;
     arm_pei_wince_be_vec)	 tb="$tb pei-arm-wince.lo pei-arm.lo peigen.lo $coff" ;;
     arm_pei_wince_le_vec)	 tb="$tb pei-arm-wince.lo pei-arm.lo peigen.lo $coff" ;;
+    arm_mach_o_vec)		 tb="$tb mach-o-arm.lo" ;;
     avr_elf32_vec)		 tb="$tb elf32-avr.lo elf32.lo $elf" ;;
     bfin_elf32_vec)		 tb="$tb elf32-bfin.lo elf32.lo $elf" ;;
     bfin_elf32_fdpic_vec)	 tb="$tb elf32-bfin.lo elf32.lo $elf" ;;
diff --git a/bfd/libbfd.h b/bfd/libbfd.h
index a095d7c450..a6ed64e1f6 100644
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -2750,15 +2750,19 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
   "BFD_RELOC_MACH_O_SECTDIFF",
   "BFD_RELOC_MACH_O_LOCAL_SECTDIFF",
   "BFD_RELOC_MACH_O_PAIR",
+  "BFD_RELOC_MACH_O_SUBTRACTOR32",
+  "BFD_RELOC_MACH_O_SUBTRACTOR64",
   "BFD_RELOC_MACH_O_X86_64_BRANCH32",
   "BFD_RELOC_MACH_O_X86_64_BRANCH8",
   "BFD_RELOC_MACH_O_X86_64_GOT",
   "BFD_RELOC_MACH_O_X86_64_GOT_LOAD",
-  "BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32",
-  "BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64",
   "BFD_RELOC_MACH_O_X86_64_PCREL32_1",
   "BFD_RELOC_MACH_O_X86_64_PCREL32_2",
   "BFD_RELOC_MACH_O_X86_64_PCREL32_4",
+  "BFD_RELOC_MACH_O_ARM64_ADDEND",
+  "BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21",
+  "BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12",
+  "BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT",
   "BFD_RELOC_MICROBLAZE_32_LO",
   "BFD_RELOC_MICROBLAZE_32_LO_PCREL",
   "BFD_RELOC_MICROBLAZE_32_ROSDA",
diff --git a/bfd/mach-o-aarch64.c b/bfd/mach-o-aarch64.c
new file mode 100644
index 0000000000..0d3c8eeb8c
--- /dev/null
+++ b/bfd/mach-o-aarch64.c
@@ -0,0 +1,308 @@
+/* AArch-64 Mach-O support for BFD.
+   Copyright (C) 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 "mach-o.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "libiberty.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)
+{
+  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
diff --git a/bfd/mach-o-arm.c b/bfd/mach-o-arm.c
new file mode 100644
index 0000000000..b7c14df81e
--- /dev/null
+++ b/bfd/mach-o-arm.c
@@ -0,0 +1,326 @@
+/* ARM Mach-O support for BFD.
+   Copyright (C) 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 "mach-o.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "libiberty.h"
+#include "mach-o/arm.h"
+
+#define bfd_mach_o_object_p bfd_mach_o_arm_object_p
+#define bfd_mach_o_core_p bfd_mach_o_arm_core_p
+#define bfd_mach_o_mkobject bfd_mach_o_arm_mkobject
+
+#define bfd_mach_o_canonicalize_one_reloc bfd_mach_o_arm_canonicalize_one_reloc
+#define bfd_mach_o_swap_reloc_out NULL
+#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_arm_bfd_reloc_type_lookup
+#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_arm_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_arm_object_p (bfd *abfd)
+{
+  return bfd_mach_o_header_p (abfd, 0, 0, BFD_MACH_O_CPU_TYPE_ARM);
+}
+
+static const bfd_target *
+bfd_mach_o_arm_core_p (bfd *abfd)
+{
+  return bfd_mach_o_header_p (abfd, 0,
+                              BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_ARM);
+}
+
+static bfd_boolean
+bfd_mach_o_arm_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_ARM;
+  mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_ARM_ALL;
+  mdata->header.byteorder = BFD_ENDIAN_LITTLE;
+  mdata->header.version = 1;
+
+  return TRUE;
+}
+
+static reloc_howto_type arm_howto_table[]=
+{
+  /* 0 */
+  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),
+  HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "DISP32",
+	 FALSE, 0xffffffff, 0xffffffff, TRUE),
+  /* 4 */
+  HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "DISP16",
+	 FALSE, 0xffff, 0xffff, TRUE),
+  HOWTO (BFD_RELOC_MACH_O_SECTDIFF, 0, 2, 32, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "SECTDIFF_32",
+	 FALSE, 0xffffffff, 0xffffffff, FALSE),
+  HOWTO (BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 2, 32, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "LSECTDIFF_32",
+	 FALSE, 0xffffffff, 0xffffffff, FALSE),
+  HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "PAIR_32",
+	 FALSE, 0xffffffff, 0xffffffff, FALSE),
+  /* 8 */
+  HOWTO (BFD_RELOC_MACH_O_SECTDIFF, 0, 1, 16, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "SECTDIFF_16",
+	 FALSE, 0xffff, 0xffff, FALSE),
+  HOWTO (BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 1, 16, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "LSECTDIFF_16",
+	 FALSE, 0xffff, 0xffff, FALSE),
+  HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 1, 16, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "PAIR_16",
+	 FALSE, 0xffff, 0xffff, FALSE),
+  HOWTO (BFD_RELOC_ARM_PCREL_CALL, 2, 2, 24, TRUE, 0,
+	 complain_overflow_signed,
+	 NULL, "BR24",
+	 FALSE, 0x00ffffff, 0x00ffffff, TRUE),
+  /* 12 */
+  HOWTO (BFD_RELOC_ARM_MOVW, 0,	2, 16, FALSE, 0,
+	 complain_overflow_dont,
+	 NULL, "MOVW",
+	 FALSE, 0x000f0fff, 0x000f0fff, FALSE),
+  HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 2, 16, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "PAIR_W",
+	 FALSE, 0x000f0fff, 0x000f0fff, FALSE),
+  HOWTO (BFD_RELOC_ARM_MOVT, 0, 2, 16, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "MOVT",
+	 FALSE, 0x000f0fff, 0x000f0fff, FALSE),
+  HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 2, 16, FALSE, 0,
+	 complain_overflow_bitfield,
+	 NULL, "PAIR_T",
+	 FALSE, 0x000f0fff, 0x000f0fff, FALSE),
+  /* 16 */
+  HOWTO (BFD_RELOC_THUMB_PCREL_BLX, 2, 2, 24, TRUE, 0,
+	 complain_overflow_signed,
+	 NULL, "TBR22",
+	 FALSE, 0x07ff2fff, 0x07ff2fff, TRUE)
+};
+
+static bfd_boolean
+bfd_mach_o_arm_canonicalize_one_reloc (bfd *abfd,
+                                      struct mach_o_reloc_info_external *raw,
+                                      arelent *res, asymbol **syms)
+ {
+  bfd_mach_o_reloc_info reloc;
+
+  if (!bfd_mach_o_pre_canonicalize_one_reloc (abfd, raw, &reloc, res, syms))
+    return FALSE;
+
+  if (reloc.r_scattered)
+    {
+      switch (reloc.r_type)
+        {
+        case BFD_MACH_O_ARM_RELOC_PAIR:
+          if (reloc.r_length == 2)
+            {
+	      res->howto = &arm_howto_table[7];
+	      res->address = res[-1].address;
+	      return TRUE;
+            }
+          else if (reloc.r_length == 1)
+	    {
+	      res->howto = &arm_howto_table[10];
+	      res->address = res[-1].address;
+	      return TRUE;
+	    }
+          return FALSE;
+        case BFD_MACH_O_ARM_RELOC_SECTDIFF:
+          if (reloc.r_length == 2)
+            {
+	      res->howto = &arm_howto_table[5];
+	      return TRUE;
+            }
+          else if (reloc.r_length == 1)
+            {
+	      res->howto = &arm_howto_table[8];
+	      return TRUE;
+            }
+          return FALSE;
+        case BFD_MACH_O_ARM_RELOC_LOCAL_SECTDIFF:
+          if (reloc.r_length == 2)
+            {
+	      res->howto = &arm_howto_table[6];
+	      return TRUE;
+            }
+          else if (reloc.r_length == 1)
+            {
+	      res->howto = &arm_howto_table[9];
+	      return TRUE;
+            }
+          return FALSE;
+	case BFD_MACH_O_ARM_RELOC_HALF_SECTDIFF:
+	  switch (reloc.r_length)
+	    {
+	    case 2: /* :lower16: for movw arm.  */
+	      res->howto = &arm_howto_table[12];
+	      return TRUE;
+	    case 3: /* :upper16: for movt arm.  */
+	      res->howto = &arm_howto_table[14];
+	      return TRUE;
+	    }
+	  return FALSE;
+        default:
+          return FALSE;
+        }
+    }
+  else
+    {
+      switch (reloc.r_type)
+        {
+        case BFD_MACH_O_ARM_RELOC_VANILLA:
+          switch ((reloc.r_length << 1) | reloc.r_pcrel)
+            {
+            case 0: /* len = 0, pcrel = 0  */
+              res->howto = &arm_howto_table[2];
+              return TRUE;
+            case 2: /* len = 1, pcrel = 0  */
+              res->howto = &arm_howto_table[1];
+              return TRUE;
+            case 3: /* len = 1, pcrel = 1  */
+              res->howto = &arm_howto_table[4];
+              return TRUE;
+            case 4: /* len = 2, pcrel = 0  */
+              res->howto = &arm_howto_table[0];
+              return TRUE;
+            case 5: /* len = 2, pcrel = 1  */
+              res->howto = &arm_howto_table[3];
+              return TRUE;
+            default:
+              return FALSE;
+            }
+          break;
+        case BFD_MACH_O_ARM_RELOC_BR24:
+	  if (reloc.r_length == 2 && reloc.r_pcrel == 1)
+	    {
+              res->howto = &arm_howto_table[11];
+              return TRUE;
+	    }
+	  else
+	    return FALSE;
+	  break;
+        case BFD_MACH_O_THUMB_RELOC_BR22:
+	  if (reloc.r_length == 2 && reloc.r_pcrel == 1)
+	    {
+              res->howto = &arm_howto_table[16];
+              return TRUE;
+	    }
+	  else
+	    return FALSE;
+	  break;
+        case BFD_MACH_O_ARM_RELOC_HALF:
+	  if (reloc.r_pcrel == 0)
+	    switch (reloc.r_length)
+	      {
+	      case 0: /* :lower16: for movw arm.  */
+		res->howto = &arm_howto_table[12];
+		return TRUE;
+	      case 1: /* :upper16: for movt arm.  */
+		res->howto = &arm_howto_table[14];
+		return TRUE;
+	      }
+	  return FALSE;
+        case BFD_MACH_O_ARM_RELOC_PAIR:
+	  if (res[-1].howto == &arm_howto_table[12]
+	      && reloc.r_length == 0)
+	    {
+	      /* Pair for :lower16: of movw arm.  */
+	      res->howto = &arm_howto_table[13];
+	      /* This reloc contains the other half in its r_address field.  */
+	      res[-1].addend += (res->address & 0xffff) << 16;
+	      res->address = res[-1].address;
+	      return TRUE;
+            }
+	  else if (res[-1].howto == &arm_howto_table[14]
+		   && reloc.r_length == 1)
+	    {
+	      /* Pair for :upper16: of movt arm.  */
+	      res->howto = &arm_howto_table[15];
+	      /* This reloc contains the other half in its r_address field.  */
+	      res[-1].addend += res->address & 0xffff;
+	      res->address = res[-1].address;
+	      return TRUE;
+            }
+          return FALSE;
+        default:
+          return FALSE;
+        }
+    }
+}
+
+static reloc_howto_type *
+bfd_mach_o_arm_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+				      bfd_reloc_code_real_type code)
+{
+  unsigned int i;
+
+  for (i = 0; i < sizeof (arm_howto_table) / sizeof (*arm_howto_table); i++)
+    if (code == arm_howto_table[i].type)
+      return &arm_howto_table[i];
+  return NULL;
+}
+
+static reloc_howto_type *
+bfd_mach_o_arm_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+				      const char *name ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+#define TARGET_NAME 		arm_mach_o_vec
+#define TARGET_STRING     	"mach-o-arm"
+#define TARGET_ARCHITECTURE	bfd_arch_arm
+#define TARGET_PAGESIZE		4096
+#define TARGET_BIG_ENDIAN 	0
+#define TARGET_ARCHIVE 		0
+#define TARGET_PRIORITY		0
+#include "mach-o-target.c"
diff --git a/bfd/mach-o-x86-64.c b/bfd/mach-o-x86-64.c
index 5914ae8b1c..05046d750a 100644
--- a/bfd/mach-o-x86-64.c
+++ b/bfd/mach-o-x86-64.c
@@ -266,12 +266,12 @@ bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
       rinfo->r_pcrel = 1;
       rinfo->r_length = 2;
       break;
-    case BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32:
+    case BFD_RELOC_MACH_O_SUBTRACTOR32:
       rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SUBTRACTOR;
       rinfo->r_pcrel = 0;
       rinfo->r_length = 2;
       break;
-    case BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64:
+    case BFD_RELOC_MACH_O_SUBTRACTOR64:
       rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SUBTRACTOR;
       rinfo->r_pcrel = 0;
       rinfo->r_length = 3;
diff --git a/bfd/reloc.c b/bfd/reloc.c
index bbc376e579..17c470e909 100644
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -6590,6 +6590,14 @@ ENUM
   BFD_RELOC_MACH_O_PAIR
 ENUMDOC
   Pair of relocation.  Contains the first symbol.
+ENUM
+  BFD_RELOC_MACH_O_SUBTRACTOR32
+ENUMDOC
+  Symbol will be substracted.  Must be followed by a BFD_RELOC_32.
+ENUM
+  BFD_RELOC_MACH_O_SUBTRACTOR64
+ENUMDOC
+  Symbol will be substracted.  Must be followed by a BFD_RELOC_64.
 
 ENUM
   BFD_RELOC_MACH_O_X86_64_BRANCH32
@@ -6607,14 +6615,6 @@ ENUM
 ENUMDOC
   Used when loading a GOT entry with movq.  It is specially marked so that
   the linker could optimize the movq to a leaq if possible.
-ENUM
-  BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32
-ENUMDOC
-  Symbol will be substracted.  Must be followed by a BFD_RELOC_64.
-ENUM
-  BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64
-ENUMDOC
-  Symbol will be substracted.  Must be followed by a BFD_RELOC_64.
 ENUM
   BFD_RELOC_MACH_O_X86_64_PCREL32_1
 ENUMDOC
@@ -6628,6 +6628,24 @@ ENUM
 ENUMDOC
   Same as BFD_RELOC_32_PCREL but with an implicit -4 addend.
 
+
+ENUM
+  BFD_RELOC_MACH_O_ARM64_ADDEND
+ENUMDOC
+  Addend for PAGE or PAGEOFF.
+ENUM
+  BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21
+ENUMDOC
+  Relative offset to page of GOT slot.
+ENUM
+  BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12
+ENUMDOC
+  Relative offset within page of GOT slot.
+ENUM
+  BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT
+ENUMDOC
+  Address of a GOT entry.
+
 ENUM
   BFD_RELOC_MICROBLAZE_32_LO
 ENUMDOC
diff --git a/bfd/targets.c b/bfd/targets.c
index 51f2198c13..bfb34f1124 100644
--- a/bfd/targets.c
+++ b/bfd/targets.c
@@ -571,6 +571,7 @@ extern const bfd_target aarch64_elf64_be_vec;
 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
 extern const bfd_target aarch64_elf64_le_vec;
 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
+extern const bfd_target aarch64_mach_o_vec;
 extern const bfd_target alpha_ecoff_le_vec;
 extern const bfd_target alpha_elf64_vec;
 extern const bfd_target alpha_elf64_fbsd_vec;
@@ -598,6 +599,7 @@ extern const bfd_target arm_elf32_symbian_be_vec;
 extern const bfd_target arm_elf32_symbian_le_vec;
 extern const bfd_target arm_elf32_vxworks_be_vec;
 extern const bfd_target arm_elf32_vxworks_le_vec;
+extern const bfd_target arm_mach_o_vec;
 extern const bfd_target arm_pe_be_vec;
 extern const bfd_target arm_pe_le_vec;
 extern const bfd_target arm_pe_epoc_be_vec;
@@ -953,6 +955,7 @@ static const bfd_target * const _bfd_target_vector[] =
 	&aarch64_elf64_be_cloudabi_vec,
 	&aarch64_elf64_le_vec,
 	&aarch64_elf64_le_cloudabi_vec,
+	&aarch64_mach_o_vec,
 #endif
 
 #ifdef BFD64
@@ -998,6 +1001,7 @@ static const bfd_target * const _bfd_target_vector[] =
 	&arm_elf32_symbian_le_vec,
 	&arm_elf32_vxworks_be_vec,
 	&arm_elf32_vxworks_le_vec,
+	&arm_mach_o_vec,
 	&arm_pe_be_vec,
 	&arm_pe_le_vec,
 	&arm_pe_epoc_be_vec,
diff --git a/configure b/configure
index 34b66f7ea1..3bb1c038ae 100755
--- a/configure
+++ b/configure
@@ -3688,6 +3688,14 @@ esac
 case "${target}" in
   *-*-chorusos)
     ;;
+  aarch64-*-darwin*)
+    noconfigdirs="$noconfigdirs ld gas gdb gprof"
+    noconfigdirs="$noconfigdirs sim target-rda"
+    ;;
+  arm-*-darwin*)
+    noconfigdirs="$noconfigdirs ld gas gdb gprof"
+    noconfigdirs="$noconfigdirs sim target-rda"
+    ;;
   powerpc-*-darwin*)
     noconfigdirs="$noconfigdirs ld gas gdb gprof"
     noconfigdirs="$noconfigdirs sim target-rda"
diff --git a/configure.ac b/configure.ac
index 4977d97e77..676fbc4886 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1025,6 +1025,14 @@ esac
 case "${target}" in
   *-*-chorusos)
     ;;
+  aarch64-*-darwin*)
+    noconfigdirs="$noconfigdirs ld gas gdb gprof"
+    noconfigdirs="$noconfigdirs sim target-rda"
+    ;;
+  arm-*-darwin*)
+    noconfigdirs="$noconfigdirs ld gas gdb gprof"
+    noconfigdirs="$noconfigdirs sim target-rda"
+    ;;
   powerpc-*-darwin*)
     noconfigdirs="$noconfigdirs ld gas gdb gprof"
     noconfigdirs="$noconfigdirs sim target-rda"
-- 
2.34.1