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.

1 files changed, 308 insertions, 0 deletions

diff --git a/bfd/mach-o-aarch64.c b/bfd/mach-o-aarch64.c
new file mode 100644
index 0000000..0d3c8ee
--- /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