Add support for aarch64.

Submitted by:	andreast

2 files changed, 188 insertions, 2 deletions

diff --git a/lang/gcc/Makefile b/lang/gcc/Makefile
index 20eb08c80729..b350545b42cd 100644
--- a/lang/gcc/Makefile
+++ b/lang/gcc/Makefile
@@ -29,7 +29,7 @@ CPE_VENDOR=	gnu
 # once installed.
 GCC_VERSION=	${PORTVERSION}
 SUFFIX=		${PORTVERSION:C/([0-9]+).*/\1/}
-ONLY_FOR_ARCHS=	amd64 arm armv6 i386 powerpc powerpc64 sparc64
+ONLY_FOR_ARCHS=	aarch64 amd64 arm armv6 i386 powerpc powerpc64 sparc64
 USES=		compiler cpe gmake iconv libtool makeinfo perl5 tar:bzip2
 USE_BINUTILS=	yes
 USE_PERL5=	build
@@ -64,7 +64,7 @@ CONFIGURE_TARGET=	x86_64-portbld-${OPSYS:tl}${OSREL}
 CONFIGURE_ENV+=	UNAME_m="powerpc64"
 .endif
 
-.if ${ARCH} == "armv6"
+.if ${ARCH} == "armv6" || ${ARCH} == "aarch64"
 . if ${COMPILER_TYPE} == clang
 .  if empty(PORT_OPTIONS:MBOOTSTRAP)
 MAKE_ARGS+=CXXFLAGS=-fbracket-depth=512
diff --git a/lang/gcc/files/patch-aarch64-support b/lang/gcc/files/patch-aarch64-support
new file mode 100644
index 000000000000..7272a1382b30
--- /dev/null
+++ b/lang/gcc/files/patch-aarch64-support
@@ -0,0 +1,186 @@
+--- UTC
+Index: configure
+===================================================================
+--- configure	(revision 240731)
++++ configure	(working copy)
+@@ -3455,6 +3455,9 @@
+   *-*-vxworks*)
+     noconfigdirs="$noconfigdirs ${libgcj}"
+     ;;
++  aarch64*-*-freebsd*)
++    noconfigdirs="$noconfigdirs ${libgcj}"
++    ;;
+   alpha*-*-*vms*)
+     noconfigdirs="$noconfigdirs ${libgcj}"
+     ;;
+Index: configure.ac
+===================================================================
+--- configure.ac	(revision 240731)
++++ configure.ac	(working copy)
+@@ -802,6 +802,9 @@
+   *-*-vxworks*)
+     noconfigdirs="$noconfigdirs ${libgcj}"
+     ;;
++  aarch64*-*-freebsd*)
++    noconfigdirs="$noconfigdirs ${libgcj}"
++    ;;
+   alpha*-*-*vms*)
+     noconfigdirs="$noconfigdirs ${libgcj}"
+     ;;
+Index: gcc/config/aarch64/aarch64-freebsd.h
+===================================================================
+--- gcc/config/aarch64/aarch64-freebsd.h	(nonexistent)
++++ gcc/config/aarch64/aarch64-freebsd.h	(working copy)
+@@ -0,0 +1,94 @@
++/* Definitions for AArch64 running FreeBSD
++   Copyright (C) 2016 Free Software Foundation, Inc.
++
++   This file is part of GCC.
++
++   GCC 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, or (at your option)
++   any later version.
++
++   GCC 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 GCC; see the file COPYING3.  If not see
++   <http://www.gnu.org/licenses/>.  */
++
++#ifndef GCC_AARCH64_FREEBSD_H
++#define GCC_AARCH64_FREEBSD_H
++
++#undef  SUBTARGET_CPP_SPEC
++#define SUBTARGET_CPP_SPEC FBSD_CPP_SPEC
++
++#if TARGET_BIG_ENDIAN_DEFAULT
++#define TARGET_LINKER_EMULATION  "aarch64fbsdb"
++#else
++#define TARGET_LINKER_EMULATION  "aarch64fbsd"
++#endif
++
++#undef  SUBTARGET_EXTRA_LINK_SPEC
++#define SUBTARGET_EXTRA_LINK_SPEC " -m" TARGET_LINKER_EMULATION
++
++#undef  FBSD_TARGET_LINK_SPEC
++#define FBSD_TARGET_LINK_SPEC "                                 \
++    %{p:%nconsider using `-pg' instead of `-p' with gprof (1) } \
++    %{v:-V}                                                     \
++    %{assert*} %{R*} %{rpath*} %{defsym*}                       \
++    %{shared:-Bshareable %{h*} %{soname*}}                      \
++    %{symbolic:-Bsymbolic}                                      \
++    %{static:-Bstatic}                                          \
++    %{!static:                                                  \
++      %{rdynamic:-export-dynamic}                               \
++      %{!shared:-dynamic-linker " FBSD_DYNAMIC_LINKER " }}      \
++    -X" SUBTARGET_EXTRA_LINK_SPEC "                             \
++    %{mbig-endian:-EB} %{mlittle-endian:-EL}"
++
++#if TARGET_FIX_ERR_A53_835769_DEFAULT
++#define CA53_ERR_835769_SPEC \
++  " %{!mno-fix-cortex-a53-835769:--fix-cortex-a53-835769}"
++#else
++#define CA53_ERR_835769_SPEC \
++  " %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}"
++#endif
++
++#ifdef TARGET_FIX_ERR_A53_843419_DEFAULT
++#define CA53_ERR_843419_SPEC \
++  " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}"
++#else
++#define CA53_ERR_843419_SPEC \
++  " %{mfix-cortex-a53-843419:--fix-cortex-a53-843419}"
++#endif
++
++#undef  LINK_SPEC
++#define LINK_SPEC FBSD_TARGET_LINK_SPEC	\
++                  CA53_ERR_835769_SPEC	\
++                  CA53_ERR_843419_SPEC
++
++#define GNU_USER_TARGET_MATHFILE_SPEC \
++  "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
++
++#undef ENDFILE_SPEC
++#define ENDFILE_SPEC \
++    GNU_USER_TARGET_MATHFILE_SPEC " " \
++    FBSD_ENDFILE_SPEC
++
++#undef  TARGET_OS_CPP_BUILTINS
++#define TARGET_OS_CPP_BUILTINS()              \
++  do                                          \
++  {                                           \
++      FBSD_TARGET_OS_CPP_BUILTINS ();         \
++  }                                           \
++  while (false)
++
++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
++
++/* Uninitialized common symbols in non-PIE executables, even with
++   strong definitions in dependent shared libraries, will resolve
++   to COPY relocated symbol in the executable.  See PR65780.  */
++#undef TARGET_BINDS_LOCAL_P
++#define TARGET_BINDS_LOCAL_P default_binds_local_p_2
++
++#endif  /* GCC_AARCH64_FREEBSD_H */
+Index: gcc/config/aarch64/t-aarch64-freebsd
+===================================================================
+--- gcc/config/aarch64/t-aarch64-freebsd	(nonexistent)
++++ gcc/config/aarch64/t-aarch64-freebsd	(working copy)
+@@ -0,0 +1,21 @@
++# Machine description for AArch64 architecture.
++#  Copyright (C) 2016 Free Software Foundation, Inc.
++#
++#  This file is part of GCC.
++#
++#  GCC 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, or (at your option)
++#  any later version.
++#
++#  GCC 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 GCC; see the file COPYING3.  If not see
++#  <http://www.gnu.org/licenses/>.
++
++LIB1ASMSRC   = aarch64/lib1funcs.asm
++LIB1ASMFUNCS = _aarch64_sync_cache_range
+Index: gcc/config.gcc
+===================================================================
+--- gcc/config.gcc	(revision 240731)
++++ gcc/config.gcc	(working copy)
+@@ -914,6 +914,11 @@
+ 	done
+ 	TM_MULTILIB_CONFIG=`echo $TM_MULTILIB_CONFIG | sed 's/^,//'`
+ 	;;
++aarch64*-*-freebsd*)
++	tm_file="${tm_file} dbxelf.h elfos.h ${fbsd_tm_file}"
++	tm_file="${tm_file} aarch64/aarch64-elf.h aarch64/aarch64-freebsd.h"
++	tmake_file="${tmake_file} aarch64/t-aarch64 aarch64/t-aarch64-freebsd"
++	;;
+ aarch64*-*-linux*)
+ 	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h"
+ 	tm_file="${tm_file} aarch64/aarch64-elf.h aarch64/aarch64-linux.h"
+Index: libgcc/config.host
+===================================================================
+--- libgcc/config.host	(revision 240731)
++++ libgcc/config.host	(working copy)
+@@ -328,6 +328,11 @@
+ 	tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
+ 	tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
+ 	;;
++aarch64*-*-freebsd*)
++	extra_parts="$extra_parts crtfastmath.o"
++	tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
++	tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
++	;;
+ aarch64*-*-linux*)
+ 	extra_parts="$extra_parts crtfastmath.o"
+ 	md_unwind_header=aarch64/linux-unwind.h