Implement BE8 support for ARM.

gold/
	* arm.cc (Stub::do_fixed_endian_write):Far call stubs support for arm
	in the be8 mode.
	* testsuite/Makefile.am: New test cases.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/arm_farcall_arm_arm_be8.sh: New script for arm to arm far
	call stubs.
	* testsuite/arm_farcall_thumb_thumb_be8.sh: New script for thumb to
	thumb far call stubs.

7 files changed, 190 insertions, 8 deletions

diff --git a/gold/ChangeLog b/gold/ChangeLog
index a47ae967787..c12214b1849 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,14 @@
+2017-10-19  Umesh Kalappa  <ukalappa@cisco.com>
+
+	* arm.cc (Stub::do_fixed_endian_write):Far call stubs support for arm
+	in the be8 mode.
+	* testsuite/Makefile.am: New test cases.
+	* testsuite/Makefile.in: Regenerate.
+	* testsuite/arm_farcall_arm_arm_be8.sh: New script for arm to arm far
+	call stubs.
+	* testsuite/arm_farcall_thumb_thumb_be8.sh: New script for thumb to
+	thumb far call stubs.
+
 2017-10-18  Kyle Butt  <iteratee@google.com>
 	    Alan Modra  <amodra@gmail.com>
 
diff --git a/gold/arm.cc b/gold/arm.cc
index f887fe558b8..982c46de8bb 100644
--- a/gold/arm.cc
+++ b/gold/arm.cc
@@ -4516,30 +4516,49 @@ Stub::do_fixed_endian_write(unsigned char* view, section_size_type view_size)
 {
   const Stub_template* stub_template = this->stub_template();
   const Insn_template* insns = stub_template->insns();
+  const bool enable_be8 = parameters->options().be8();
 
-  // FIXME:  We do not handle BE8 encoding yet.
   unsigned char* pov = view;
   for (size_t i = 0; i < stub_template->insn_count(); i++)
     {
       switch (insns[i].type())
 	{
 	case Insn_template::THUMB16_TYPE:
-	  elfcpp::Swap<16, big_endian>::writeval(pov, insns[i].data() & 0xffff);
+	  if (enable_be8)
+	    elfcpp::Swap<16, false>::writeval(pov, insns[i].data() & 0xffff);
+	  else
+	    elfcpp::Swap<16, big_endian>::writeval(pov,
+						   insns[i].data() & 0xffff);
 	  break;
 	case Insn_template::THUMB16_SPECIAL_TYPE:
-	  elfcpp::Swap<16, big_endian>::writeval(
-	      pov,
-	      this->thumb16_special(i));
+	  if (enable_be8)
+	    elfcpp::Swap<16, false>::writeval(pov, this->thumb16_special(i));
+	  else
+	    elfcpp::Swap<16, big_endian>::writeval(pov,
+						   this->thumb16_special(i));
 	  break;
 	case Insn_template::THUMB32_TYPE:
 	  {
 	    uint32_t hi = (insns[i].data() >> 16) & 0xffff;
 	    uint32_t lo = insns[i].data() & 0xffff;
-	    elfcpp::Swap<16, big_endian>::writeval(pov, hi);
-	    elfcpp::Swap<16, big_endian>::writeval(pov + 2, lo);
+	    if (enable_be8)
+	      {
+	        elfcpp::Swap<16, false>::writeval(pov, hi);
+	        elfcpp::Swap<16, false>::writeval(pov + 2, lo);
+	      }
+	    else
+	      {
+		elfcpp::Swap<16, big_endian>::writeval(pov, hi);
+		elfcpp::Swap<16, big_endian>::writeval(pov + 2, lo);
+	      }
 	  }
 	  break;
 	case Insn_template::ARM_TYPE:
+	  if (enable_be8)
+	    elfcpp::Swap<32, false>::writeval(pov, insns[i].data());
+	  else
+	    elfcpp::Swap<32, big_endian>::writeval(pov, insns[i].data());
+	  break;
 	case Insn_template::DATA_TYPE:
 	  elfcpp::Swap<32, big_endian>::writeval(pov, insns[i].data());
 	  break;
diff --git a/gold/options.h b/gold/options.h
index 93f81b29afc..678ca8208ec 100644
--- a/gold/options.h
+++ b/gold/options.h
@@ -711,7 +711,7 @@ class General_options
   DEFINE_string(format, options::TWO_DASHES, 'b', "elf",
 		N_("Set input format"), ("[elf,binary]"));
 
-  DEFINE_bool(be8,options::TWO_DASHES, '\0', false,
+  DEFINE_bool(be8, options::TWO_DASHES, '\0', false,
 	      N_("Output BE8 format image"), NULL);
 
   DEFINE_optional_string(build_id, options::TWO_DASHES, '\0', "tree",
diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index cae47f1e097..8eca3d8e072 100644
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -3722,6 +3722,38 @@ arm_farcall_thumb_thumb_6m.o: arm_farcall_thumb_thumb.s
 MOSTLYCLEANFILES += arm_farcall_thumb_thumb arm_farcall_thumb_thumb_5t \
 		    arm_farcall_thumb_thumb_7m arm_farcall_thumb_thumb_6m
 
+#Check ARM to ARM farcall veneers in the be8 mode addressing
+
+check_SCRIPTS += arm_farcall_arm_arm_be8.sh
+check_DATA += arm_farcall_arm_arm_be8.stdout
+
+arm_farcall_arm_arm_be8.stdout: arm_farcall_arm_arm_be8
+	$(TEST_OBJDUMP) -D $< > $@
+
+arm_farcall_arm_arm_be8: arm_farcall_arm_arm_be8.o ../ld-new
+	../ld-new --no-fix-arm1176 --section-start .text=0x1000 --section-start .foo=0x2001020 -EB --be8 -o $@ $<
+
+arm_farcall_arm_arm_be8.o: arm_farcall_arm_arm.s
+	$(TEST_AS) -EB -o $@ $<
+
+MOSTLYCLEANFILES += arm_farcall_arm_arm_be8
+
+#Check THUMB  to  THUMB farcall veneers in the be8 mode addressing
+
+check_SCRIPTS += arm_farcall_thumb_thumb_be8.sh
+check_DATA += arm_farcall_thumb_thumb_be8.stdout
+
+arm_farcall_thumb_thumb_be8.stdout: arm_farcall_thumb_thumb_be8
+	$(TEST_OBJDUMP) -D $< > $@
+
+arm_farcall_thumb_thumb_be8: arm_farcall_thumb_thumb_be8.o ../ld-new
+	../ld-new --section-start .text=0x1000 --section-start .foo=0x2001014 -EB --be8 -o $@ $<
+
+arm_farcall_thumb_thumb_be8.o: arm_farcall_thumb_thumb.s
+	$(TEST_AS) -march=armv7-m -EB -o $@ $<
+
+MOSTLYCLEANFILES += arm_farcall_thumb_thumb_be8
+
 # Check Thumb to ARM farcall veneers
 
 check_SCRIPTS += arm_farcall_thumb_arm.sh
diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index 0169fce141f..10f9493abe3 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -856,6 +856,10 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 
 # Check Thumb to Thumb farcall veneers
 
+#Check ARM to ARM farcall veneers in the be8 mode addressing
+
+#Check THUMB  to  THUMB farcall veneers in the be8 mode addressing
+
 # Check Thumb to ARM farcall veneers
 
 # Check handling of --target1-abs, --target1-rel and --target2 options
@@ -872,6 +876,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_arm_arm.sh \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_arm_thumb.sh \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb.sh \
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_arm_arm_be8.sh \
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_be8.sh \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_arm.sh \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_target1_abs.sh \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_target1_rel.sh \
@@ -923,6 +929,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_5t.stdout \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_7m.stdout \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_6m.stdout \
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_arm_arm_be8.stdout \
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_be8.stdout \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_arm.stdout \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_arm_5t.stdout \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_target1_abs.stdout \
@@ -972,6 +980,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_5t \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_7m \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_6m \
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_arm_arm_be8 \
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_thumb_be8 \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_arm \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_farcall_thumb_arm_5t \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_target1_abs \
@@ -5320,6 +5330,10 @@ arm_farcall_arm_thumb.sh.log: arm_farcall_arm_thumb.sh
 	@p='arm_farcall_arm_thumb.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 arm_farcall_thumb_thumb.sh.log: arm_farcall_thumb_thumb.sh
 	@p='arm_farcall_thumb_thumb.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+arm_farcall_arm_arm_be8.sh.log: arm_farcall_arm_arm_be8.sh
+	@p='arm_farcall_arm_arm_be8.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+arm_farcall_thumb_thumb_be8.sh.log: arm_farcall_thumb_thumb_be8.sh
+	@p='arm_farcall_thumb_thumb_be8.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 arm_farcall_thumb_arm.sh.log: arm_farcall_thumb_arm.sh
 	@p='arm_farcall_thumb_arm.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 arm_target1_abs.sh.log: arm_target1_abs.sh
@@ -7846,6 +7860,24 @@ uninstall-am:
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_thumb_thumb_6m.o: arm_farcall_thumb_thumb.s
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -march=armv6-m -o $@ $<
 
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_arm_arm_be8.stdout: arm_farcall_arm_arm_be8
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_OBJDUMP) -D $< > $@
+
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_arm_arm_be8: arm_farcall_arm_arm_be8.o ../ld-new
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new --no-fix-arm1176 --section-start .text=0x1000 --section-start .foo=0x2001020 -EB --be8 -o $@ $<
+
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_arm_arm_be8.o: arm_farcall_arm_arm.s
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -EB -o $@ $<
+
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_thumb_thumb_be8.stdout: arm_farcall_thumb_thumb_be8
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_OBJDUMP) -D $< > $@
+
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_thumb_thumb_be8: arm_farcall_thumb_thumb_be8.o ../ld-new
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new --section-start .text=0x1000 --section-start .foo=0x2001014 -EB --be8 -o $@ $<
+
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_thumb_thumb_be8.o: arm_farcall_thumb_thumb.s
+@DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -march=armv7-m -EB -o $@ $<
+
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@arm_farcall_thumb_arm.stdout: arm_farcall_thumb_arm
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_OBJDUMP) -D $< > $@
 
diff --git a/gold/testsuite/arm_farcall_arm_arm_be8.sh b/gold/testsuite/arm_farcall_arm_arm_be8.sh
new file mode 100755
index 00000000000..e21a16d1ae6
--- /dev/null
+++ b/gold/testsuite/arm_farcall_arm_arm_be8.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+# arm_farcall_arm_arm_be8.sh -- a test case for ARM->ARM farcall veneers
+
+# Copyright (C) 2010-2017 Free Software Foundation, Inc.
+# This file is part of gold.
+# Based on arm_farcall_arm_arm.s file.
+
+# 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.
+
+check()
+{
+    if ! grep -q "$2" "$1"
+    then
+	echo "Did not find expected instruction in $1:"
+	echo "   $2"
+	echo ""
+	echo "Actual instructions below:"
+	cat "$1"
+	exit 1
+    fi
+}
+
+# Check for ARM->ARM default
+check arm_farcall_arm_arm_be8.stdout "1004:	.* 	ldr	pc, \[pc, #-4\]	.*"
+check arm_farcall_arm_arm_be8.stdout "1008:	20100002"
+
+exit 0
diff --git a/gold/testsuite/arm_farcall_thumb_thumb_be8.sh b/gold/testsuite/arm_farcall_thumb_thumb_be8.sh
new file mode 100755
index 00000000000..c772a93dce9
--- /dev/null
+++ b/gold/testsuite/arm_farcall_thumb_thumb_be8.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+# arm_farcall_thumb_thumb_be8.sh -- a test case for Thumb->Thumb farcall veneers.
+
+# Copyright (C) 2010-2017 Free Software Foundation, Inc.
+# This file is part of gold.
+# Based on arm_farcall_thumb_thumb.s file
+
+# 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.
+
+check()
+{
+    if ! grep -q "$2" "$1"
+    then
+	echo "Did not find expected instruction in $1:"
+	echo "   $2"
+	echo ""
+	echo "Actual instructions below:"
+	cat "$1"
+	exit 1
+    fi
+}
+
+# Thumb->Thumb
+check arm_farcall_thumb_thumb_be8.stdout "1004:\sb401"
+check arm_farcall_thumb_thumb_be8.stdout "1006:\s4802"
+check arm_farcall_thumb_thumb_be8.stdout "1008:\s4684"
+check arm_farcall_thumb_thumb_be8.stdout "100a:\sbc01"
+check arm_farcall_thumb_thumb_be8.stdout "100c:\s4760"
+check arm_farcall_thumb_thumb_be8.stdout "100e:\sbf00"
+check arm_farcall_thumb_thumb_be8.stdout "1010:\s0002"
+check arm_farcall_thumb_thumb_be8.stdout "1012:\s1510"
+
+exit 0