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, 326 insertions, 0 deletions

diff --git a/bfd/mach-o-arm.c b/bfd/mach-o-arm.c
new file mode 100644
index 0000000..b7c14df
--- /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"